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    • 专利摘要:
    LARGE INSER DIAMETER AND HIGH PRESSURE HOSE COUPLING WITH TERMINATION FIXING. The present disclosure relates generally to a hose coupling (100) for attachment to an end portion of a hose (128). The hose coupling (100) may include a fitting (107), a termination attachment (106) and an end termination (200). The fitting (107) may be attachable to the end portion of the hose (128). The socket (107) may include a ferrule (104) and a shank (102). The ferrule (104) can be attached to the rod (102). The termination fixture (106) may be secured to the fitting (107) in oppositional relationship with the end portion of the hose. End termination (200) may be associated with termination attachment (106). In some examples, the end cap (200) is threaded, welded, integrally formed, integrally machined, or otherwise associated with the end cap (106).
    公开号:BR112016024032B1
    申请号:R112016024032-4
    申请日:2015-03-31
    公开日:2022-02-01
    发明作者:Donald R. Gilbreath；Ron Trujillo；Rudy Braun；Charles Gray；Karlton Wolf
    申请人:Gates Corporation；
    IPC主号:
    专利说明:

    BACKGROUND Field
    [001] The present disclosure relates generally to couplings used in the oil field and other applications, and more particularly to a high pressure, large bore hose coupling with a termination fixture. Related Technique
    [002] Large diameter high pressure hoses (such as those used in oil field applications) are typically clamped together with corresponding large diameter end terminations (such as flanges, male wing unions, hubs and the like) . Each end termination is generally attached to a respective hose via a hose end fitting. Hose end fittings are conventionally recessed or forged into the hose.
    [003] Flush fittings are generally attached to a respective hose prior to curing the hose, resulting in a custom manufacturing process that begins upon receipt of a customer order. For example, upon receipt of an order, the manufacturing facility typically manufactures a custom hose, attaches the fittings to the ends of the custom-made hose, and then cures the assembled hose and fittings. Manufacturing facilities often experience delays due to the labor-intensive process, the need to schedule a hose build after receiving the customer order, and an inability to utilize a cut-to-couple system. This results in long lead times for customer orders.
    [004] Forged fittings are generally fixed to a previously cured hose, resulting in a faster manufacturing process compared to recessed fittings. For example, before receiving a customer order, hoses are often cured to great lengths and then stored together with various types of fittings. Upon receipt of a customer order, a cured hose is cut to the proper length and then forged fittings are attached to the ends of the cut to size cured hose. Despite the benefits, forge sockets have several disadvantages.
    [005] In some circumstances, end terminations are welded to the hose end fitting before the fitting is forged into the hose. However, due, at least in part, to the large size of the end terminations, the forge dies must be removed from the forging equipment to allow for the removal of the forged hose assembly from the equipment, thus increasing the complexity and time of the forging. forge operation. To solve this problem, in some circumstances, end terminations are welded to the hose end fitting after the fitting is forged into the hose. However, due to the proximity of the welding operation to the forged end of the hose, the heat from the welding operation can damage the hose end, which can compromise the integrity of the forge connection. To mitigate the risk of heat damage, certain welding methods (such as water jacket welding) can be used, however these methods are difficult and potentially dangerous. The forging operation also generally requires the use of heavy dies. Additionally, due to the nature of the forging operation, the hose is first squashed at the ferrule end of the forging socket and then the hose is compressed so that it grows axially with respect to the socket shank to impart shear forces. through the thickness of the hose and often delaminating or otherwise damaging the hose. SUMMARY
    [006] Examples of the disclosure may include a hose coupling for attachment to an end portion of a hose. The hose coupling may include a fitting, a termination fixture and an end termination. The fitting may be attachable to the end portion of the hose. The socket may include a ferrule and a shank. The ferrule can be fixed to the stem. The termination fixture may be secured to the fitting in oppositional relationship with the end portion of the hose. End termination can be associated with termination fastening. In some examples, the end cap is threaded, welded, integrally formed, or integrally machined with the end cap. The coupling may include a second ferrule attached to the termination attachment. The second ferrule can extend axially over the ferrule and can be spaced radially to form the ferrule. The termination fixture can be a tubular frame that is threaded at one end and chamfered at the opposite end. The termination fixture may be a tubular structure that is threaded at one end and machined integrally with the butt termination at the opposite end.
    [007] The termination fixture can form an impermeable interface with the shank. The impermeable interface may include a first seal formed by the sealing member sealed against opposing surfaces of the stem and the termination fixture. Additionally or alternatively, the impermeable interface may include a second seal formed between opposing tapered surfaces of the stem and the termination fixture. The tapered surfaces can be axially displaced from the sealing element. For example, the tapered surfaces can be positioned axially inwardly or axially outwards from the sealing member.
    [008] The termination fixture can be in threaded engagement with the fitting. For example, the termination fixture may be in threaded engagement with the stem or ferrule. The termination attachment and ferrule can include matching locking features to prevent the termination attachment from unscrewing from the fitting. The locking feature of the termination fixture may include an annular locking groove and the locking feature of the ferrule may include one or more through holes axially aligned with the annular locking groove. One or more pressure screws may be received in the through holes and may protrude into the annular locking groove.
    [009] In some examples, the hose coupling may include a one-piece unitary rod, a one-piece unitary ferrule and a termination fixture. The one-piece unitary rod may include a first end portion, a second end portion, and an intermediate portion axially disposed between the first and second end portions. The one-piece unitary ferrule may include a first collar portion, a second collar portion, and an intermediate portion axially disposed between the first and second collar portions. The first collar portion may be disposed around the first end portion and may define a first annular space between the first end portion and the first collar portion. The second collar portion may be disposed around the second end portion and may define a second annular space between the second end portion and the second collar portion. The middle portion of the ferrule may be arranged around and secured to the middle portion of the shank. An end portion of a hose may be disposed in the first annular space. The terminating fixture may be at least partially received within the second annular space. The termination fixture can be a nipple that is externally or internally threaded at one end and chamfered at the opposite end.
    [010] The termination fixture can form an impermeable interface with the second rod end portion. The impermeable interface may include a sealing member disposed around an outer surface of the second stem end portion and sealed against an inner surface of the termination fixture and a tapered segment of the outer surface of the second stem end portion sealed against a tapered segment of the inner surface of the termination fixture. The respective tapered segments can be positioned axially in or out of the sealing member along respective outer and inner surfaces. In some examples, the sealing member may be sealed against an outer surface of the termination fixture and an inner surface of the stem. The termination attachment may be attached to the second collar portion of the ferrule. The termination fixture may include an external thread and the second collar portion of the ferrule may include an internal thread in threaded engagement with the external thread of the termination fixture. The intermediate portion of the shank may include an external thread, wherein the intermediate portion of the ferrule may include an internal thread in threaded engagement with the external thread of the intermediate portion of the shank, and the internal thread of the intermediate portion of the ferrule may be continuous with respect to the internal thread of the second collar portion.
    [011] The termination attachment and second collar portion of the ferrule may include matching locking features to prevent the termination attachment from unscrewing from the ferrule. The locking feature of the termination fixture may include an annular locking groove and the locking feature of the second collar portion of the ferrule may include multiple through holes that are axially aligned with each other and alignable with the annular locking groove. Through-holes of the second collar collar portion of the collar may be axially disposed between the internal thread of the second collar collar portion of the collar and an end face of the collar.
    [012] In another example, a hose end fitting is provided. The hose end fitting may include a rod, a sealing member and a ferrule. The rod may include a first end portion insertable into an end portion of a hose. The sealing member may be disposed around the first end portion of the rod. The ferrule can be fixed to the stem. The ferrule may include a first collar portion disposed around the first end portion and defining an annular space between the first end portion and the first collar portion. The first collar portion may include an annular inner toothed edge that is positioned axially into the sealing member to facilitate an impermeable interface between the sealing member and an end portion of a hose. The annular inner serrated edge may be axially separated from an adjacent annular inner serrated edge by a cylindrical segment. The first end portion of the rod may include a series of axially spaced outer annular burrs and the sealing member may be positioned axially between consecutive burs of the series of outer annular burrs.
    [013] In another example, a method for attaching a hose coupling to a hose is provided. The method may include attaching a ferrule to a stem to form a hose end fitting, inserting an end portion of a hose into an annular space defined between a ferrule portion and a stem portion, radially constraining the annular space to secure fitting to the end portion of the hose and, after securing the fitting to the end portion of the hose, threadably engaging a termination fixture to the fitting in oppositional relationship with the end portion of the hose. Radially restricting the annular space may compress a sealing member disposed around the stem against an inner surface of the hose to form an impermeable interface between the sealing member and the hose. The fitting may be non-rotating with respect to the end portion of the hose.
    [014] The method may additionally include forming an impermeable interface between opposing surfaces of the termination fixture and the shank during threaded engagement of the termination fixture to the socket. The method may further include rotating the termination fixture with respect to the socket until a marking on an outer surface of the termination fixture is aligned with an end face of the ferrule. The method may further include axially locking the termination attachment to the socket to prevent unthreading of the termination attachment from the socket.
    [015] In another example, a hose assembly is provided. The hose assembly may include a hose and a coupling. The hose may include an inner tube, a cable reinforcement layer that surrounds the inner tube, and a cover layer that surrounds the cable reinforcement layer. The coupling may be crimped or forged into an end portion of the hose. The coupling may include a unitary ferrule, a unitary shank, an end cap, and an end cap. The unitary ferrule may be disposed over the end portion of the hose. The unitary rod may be disposed at the end portion of the hose. The stem can be fixed to the ferrule. The termination attachment may be attached to the ferrule or rod in oppositional relationship with the end portion of the hose. End termination can be associated with termination fastening.
    [016] The termination fixing can be in threaded engagement with the ferrule or the rod. The termination fixture can form an impermeable interface with the stem. The coupling may additionally include a sealing member disposed around the stem and sealed against an inner surface of the inner tube. The ferrule may include an inner serrated edge which is positioned axially into the sealing member to facilitate an impermeable interface between the sealing member and the inner surface of the inner tube. End termination can be welded to, or machined integrally with the termination fixture. The inner tube may be at least partially ribbed along the end portion of the hose. The cover layer may be at least partially fluted along the end portion of the hose.
    [017] This summary of the disclosure is provided to aid understanding, and one skilled in the art will understand that each of the various aspects and features of the disclosure may be advantageously used separately in some cases, or in combination with other aspects. and disclosure resources in other cases. Accordingly, while the disclosure is presented in terms of examples, it should be noted that individual aspects of any example may be claimed separately or in combination with aspects and features of that example or any other example.
    [018] The present summary is not intended and should not be interpreted as representing the full extent and scope of the present disclosure. The present disclosure is set forth at various levels of detail in the present application and no limitation as to the scope of the claimed subject matter is intended by the inclusion or non-inclusion of elements, components or the like in the present summary. BRIEF DESCRIPTION OF THE DRAWINGS
    [019] The accompanying drawings, which are incorporated and form part of the specification in which similar numerals denote similar parts, illustrate examples of the present disclosure and, together with the description, serve to explain the principles of the disclosure.
    [020] Figure 1 is an exploded view of an example hose coupling, which includes a welded nipple and a flange end termination.
    [021] Figure 2 is a longitudinal cross-sectional view of the hose coupling of Figure 1 in accordance with some examples of the present disclosure.
    [022] Figure 3 is an enlarged detail view of the hose coupling of Figure 1 taken along the detail line of Figure 3 shown in Figure 2 in accordance with some examples of the present disclosure.
    [023] Figure 4 is an enlarged detail view of the hose coupling of Figure 1 taken along the detail line of Figure 4 shown in Figure 2 in accordance with some examples of the present disclosure.
    [024] Figure 5 is a quartered side view of the hose coupling of Figure 1, with the coupling crimped on a hose end in accordance with some examples of the present disclosure.
    [025] Figure 6 is a longitudinal cross-sectional view of another exemplary hose coupling in accordance with some examples of the present disclosure. Figure 7 is a longitudinal cross-sectional view of another exemplary hose coupling in accordance with some examples of the present disclosure.
    [026] Figure 8 is a longitudinal cross-sectional view of another exemplary hose coupling in accordance with some examples of the present disclosure.
    [027] Figure 9 is a longitudinal cross-sectional view of another exemplary hose coupling in accordance with some examples of the present disclosure. DETAILED DESCRIPTION
    [028] The present disclosure generally refers to a hose coupling. The hose coupling can include two primary components: a hose end fitting and a termination fixture. The hose end fitting can be attached to one end of a hose, which can be used in high pressure and/or high temperature applications such as oil field or other applications. In some deployments, the fitting is crimped to the end of the hose so that considerably less damage is done to the hose compared to forged fittings. The termination fixture can be attached to any desired end termination (eg large diameter connections such as flanges, male wing unions, hubs and the like). In some implementations, the termination fixture is threaded, welded, integrally formed, integrally machined, or otherwise associated with an end termination. After attaching the end cap to the end cap, the end cap and end cap can be secured to the end of the hose via the fitting.
    [029] Coupling can reduce the complexity and grip time of the end cap to a hose end, as well as reduce the likelihood of heat damage to the hose during assembly, thus decreasing equipment downtime. In some deployments, the fitting is crimped or forged to one end of the hose before the end cap and associated end cap are attached to the fitting. In this way, the fitting can be positioned inside the crimping or forging equipment, subsequently crimped or forged to the hose end, and then the fitting and the hose end can be collectively removed from the equipment, without removing dies from the equipment. After the crimping or forging operation, the termination fixture and associated end termination can be secured to the fitting in oppositional relationship to the hose end, without a welding operation. In some examples, the coupling is attached to a hose that has an inside diameter of between about 5.08 centimeters (2 inches) and about 10.16 centimeters (4 inches).
    [030] An exploded view of a coupling 100 is shown in Figure 1. The coupling 100 may include a shank 102, a ferrule 104, and a termination fixture 106. The ferrule 104 can be threaded, driven, or otherwise secured. to the shank 102 to form a hose end fitting 107, which may be crimped, forged, or otherwise secured to an end portion of a hose. Termination fixture 106 may be attached to hose end fitting 107 opposite the hose end portion.
    [031] Referring to Figures 1 and 2, the rod 102 can be formed as a one-piece unitary tubular structure. Stem 102 may include a first end portion 108, a second end portion 110, and an intermediate portion 112 disposed axially between the first and second end portions 108, 110. Intermediate portion 112 may be contiguous with the first and second end portions. second end portions 108, 110. The first end portion 108, the second end portion 110 and the intermediate portion 112 may be coaxially aligned along a longitudinal axis of the shank 102. The shank 102 may define a continuous internal opening 114 which extends through the first end portion 108, the second end portion 110 and the intermediate portion 112 to facilitate fluid transmission through the socket 107.
    [032] With reference to Figures 1, 2, 4 and 5, the first end portion 108 of the rod 102 may be amenable to engagement with an end portion of a hose 128 to form an impermeable interface with the hose 128. 2 and 4, a first region 116 of the first end portion 108 may be contiguous with the intermediate portion 112 and may include one or more annular relatively blind outer ridges 122 axially spaced from one another. Referring to Figure 5, ridges 122 may engage a reinforcing layer 124 of hose 128. Reinforcement layer 124 may include cables 123 (as shown in Figure 5), wires, or other suitable reinforcing structures. Referring to Figures 2 and 4, a second region 120 may be contiguous with the first region 116 and may include a series of relatively sharp annular outer burrs 132 axially spaced apart from one another. Referring to Figure 5, burrs 132 may engage an inner surface 125 of hose 128. Referring to Figures 2 and 4, a third region 118 may be contiguous with the second region 120 and may include a grip contour 130. Referring to Figure 5, the clamping contour 130 may engage the shield 127 disposed within the hose 128 and capture the shield 127 between the shank 102 and the inner surface 125 of the hose 128. The shield 127 may be formed as a conduit for flexible metal. In some deployments, the 127 shield has an outside diameter disposed about 0.3 centimeters (0.12 inches) from the inside diameter of the hose. In some deployments, the shield 127 is formed from stainless steel. The first end portion 108 of the stem 102 may include a sealing feature to seal engagement with the inner surface of the inner tube or tube portion 125 of the hose 128 to prevent or substantially prevent the infiltration of fluid from the inner opening 114 of the stem 102 into the first region 116 of the stem 102. Referring to Figures 2, 4 and 5, one or more elastomeric sealing elements 136 (e.g., O-rings) may be disposed around the second region 120 of the stem 102. In Figures 2, 4 and 5, one or more sealing elements 136 may be disposed around the first end portion 108, with the axially inwardly positioned sealing element 136 denoted by reference numeral 136a for identification purposes. Sealing elements 136 may facilitate sealing engagement with tube portion 125 of hose 128, which may be plastic. One or more support rings 138 may be disposed around the second region 120 of the first end portion 108 of the stem 102 in flush relationship with a backside of the sealing elements 136. The support rings 138 can ensure that the seals 136 remain in place along the second region 120 of the shank 102. The sealing elements 136 and the support rings 138 may be arranged in annular grooves formed on a periphery of the shank 102 between successive burrs 132.
    [033] Referring to Figures 1 to 3 and 5, the second end portion 110 of the shank 102 may be engageable with the end cap 106 to form an impermeable interface with the end cap 106. The second end portion 110 of shank 102 may include a cylindrical or substantially cylindrical outer surface 140 that may define one or more stepped surfaces. Referring to Figure 3, the outer surface 140 may include a first or front surface 142, a second or rear surface 144, and a first shoulder 146 disposed between the first and second surfaces 142, 144. The second surface 144 may have an outer diameter greater than the first surface 142. The first shoulder 146 may be formed as an annular shoulder oriented transversely (eg perpendicularly) to the first and second surfaces 142, 144 and may function as a sealing stop. The first and second surfaces 142, 144 may be cylindrical or substantially cylindrical. First surface 142 may include a rounded leading edge to facilitate alignment of second end portion 110 with termination attachment 106, to facilitate seal installation, or both. A tapered or angled surface 147 may be contiguous with the second surface 144. The angled surface 147 may form an impermeable interface with the termination fixture 106. In some implementations, the angled surface 147 forms a metal-to-metal seal with the termination attachment 106. Angled surface 147 may transition into a second shoulder 148. Second shoulder 148 may demarcate second end portion 110 and intermediate portion 112 of shank 102.
    [034] With reference to Figures 2, 3 and 5, an elastomeric sealing member 150 (e.g. an O-ring) may be disposed around the first surface 142. With reference to Figure 3, the sealing member 150 may form a sealing engagement with stem 102 and end cap 106 to prevent fluid leakage between stem 102 and end cap 106. Seal member 150 may be retained on stem 102 (see Figure 3) or on cap termination 106. One or more backup rings 152 may be disposed around first surface 142 axially between and in flush with sealing member 150 and first shoulder 146. In some implementations, sealing member 150 is retained in a groove formed in stem 102 or termination fixture 106.
    [035] With reference to Figures 1 to 3 and 5, the intermediate portion 112 of the shank 102 may be amenable to engagement with a middle portion of the ferrule 104 to secure the ferrule 104 to the stem 102. The intermediate portion 112 may include an external thread 154 for threaded engagement with ferrule 104. External thread 154 may be a straight thread. Referring to Figure 3, the external thread 154 may have a smaller diameter that is greater than the external diameter of the first and second surfaces 142, 144. The external thread 154 may be axially disposed between the second shoulder 148 and a third shoulder. 156, which can function as a stop for the ferrule 104. The third shoulder 156 can extend outward from the minor diameter of the external thread 154 at an oblique angle, for example.
    [036] The ferrule 104 may be formed as a one-piece unitary tubular structure. Ferrule 104 may include a first collar or housing portion 158, a second collar or housing portion 160, and an intermediate portion 162 disposed axially between the first and second collar portions 158, 160. Intermediate portion 162 may be contiguous with the first and second collar portions 158, 160. The first collar portion 158, the second collar portion 160 and the intermediate portion 162 may be coaxially aligned along a longitudinal axis of the ferrule 104. The ferrule 104 can define an internal opening 164 that extends continuously through the first collar portion 158, the second collar portion 160 and the intermediate portion 162 to receive the rod 102, the end portion 126 of the hose 128 and an end portion of the termination fixture 106.
    [037] Referring to Figures 2 and 4, the first collar portion 158 of the ferrule 104 may be disposed around the first end portion 108 of the shank 102 so as to define an annular space 166 radially between the first collar portion 158 and first end portion 108. First collar portion 158 may be arranged concentrically around and spaced radially outward from first end portion 108. First collar portion 158 may be retractable or radially inwardly crushable so as to so as to secure the end portion 126 of the hose 128 between the first collar portion 158 and the first end portion 108. Additionally or alternatively, the first end portion 108 of the rod 102 may be radially outwardly expandable so as to secure the end portion 126 of the hose 128 between the first collar portion 158 and the first end portion 108. Internally expanding the stem 102 can improve the seal and retention between fitting 107 and hose 128. For example, internally expanding stem 102 can help lock shield 127 in place, improve fitting retention, and reduce hose damage as ferrule 104 can be crimped to a larger diameter with the same retention level.
    [038] Referring to Figures 1, 2, 4 and 5, the first collar portion 158 of the ferrule 104 may include a first region 168, a second region 170 and an intermediate region 172 disposed axially between the first and second regions 168 , 170. The first region 168 can be contiguous with the intermediate portion 162 of the ferrule 104 and the second region 170 can be contiguous with a leading edge of the ferrule 104. With reference to Figures 2 and 4, the first region 168 can include one or more plus annular relatively blind inner ridges 174 axially spaced from each other. Intermediate region 172 may include a series of annular inner serrated edges 176 axially spaced from one another by a series of cylindrical or substantially cylindrical segments 178. Second region 170 may include multiple annular inner protrusions 180 axially spaced apart from one another.
    [039] With reference to Figures 2 and 4, the cylindrical segments 178 can be formed as recesses in the outer or outer surface of the ferrule 104. The cylindrical segments 178 can be located axially between external ridges 181 of the ferrule 104. When the ferrule 104 is crimped, the outer ridges 181 can be driven radially inward and a middle portion of the cylindrical segments 178 can remain at a larger diameter, resulting in the cylindrical segments 178 forming an arcuate, curved volume between the outer ridges 181 (see Figure 5) . The cylindrical segments 178 can reduce the axial growth of the ferrule 104 and can reduce the crimping force required to secure the fitting 107 to the hose 128, as the cylindrical segments 178 are not radially constrained as much as the outer ridges 181.
    [040] Referring to Figure 5, the first region and the intermediate region 168, 172 of the ferrule 104 can engage the reinforcement layer 124 of the hose 128, and the second region 170 of the ferrule 104 can engage the layer or portion of cover 134 of hose 128. Inner ridges 174 of first region 168 of ferrule 104 may interleave or interlace with outer ridges 122 of first region 116 of stem 102 to axially secure hose 128 within a first region 182 of the butt fitting hose 107. Within the first zone 182, the reinforcing layer 124 of the hose 128 may be internally and externally tightened by the axially displaced ridges 122, 174 of the stem 102 and the ferrule 104, respectively. The ridges 122, 174 can be of sufficient axial lengths to crack or pinch the reinforcement layer 124 without creating a stress bulge that causes the reinforcement layer 124 to crack or rupture. Interleaved ridges 122, 174 may move reinforcement layer 124 into radially opposing grooves formed axially between respective ridges 122, 174, thereby moving reinforcement layer 124 into a substantially sinusoidal shape and providing an interlace. mechanical. The offset ridges 122, 174 may provide the primary grip or retention of the hose 128.
    [041] The inner toothed edges 176 of the intermediate region 172 of the ferrule 104 may radially oppose, generally speaking, the annular burrs 132 of the second region 120 of the rod 102 to axially secure the hose 128 within a second region 184 of the hose fitting. hose end 107. Inner serrated edges 176 may crack the hose reinforcement layer 124, provide compression to the hose 128 for sealing, or both. Inner protuberances 180 of second region 170 of ferrule 104 may engage with cover portion 134 of hose 128 to prevent or substantially prevent cover 134 from forming a bulge. The second region 170 may radially oppose, generally speaking, the second region 120 of the rod 102, the third region 118 of the rod 102, or both and define a third region 186 of the hose end fitting 107. When engaged with the end 126 of hose 128, hose end fitting 107 may be capable of withstanding an internal hose operating pressure in excess of 68.95 MPa (10,000 pounds per square inch (PSI)) without leakage.
    [042] The first collar portion 158 of the ferrule 104 may facilitate sealing engagement between the one or more elastomeric sealing elements 136 and the hose 128. Referring to Figure 5, when the hose end fitting 107 is secured to the end portion 126 of hose 128, one of the inner serrated edges 176 of the intermediate region 172 of the ferrule 104 can compress the inner surface 125 of the hose 128 against one of the elastomeric sealing members 136. As shown in Figure 5, an inner serrated edge 176a may be axially aligned or substantially axially aligned with the axially inwardly sealing member 136a. In some implementations, the inner toothed edge 176a may be axially displaced from and positioned opposite the pressure side of the axially inwardly sealing member 136a (to the left of the sealing member 136a in Figure 5) to facilitate sealing engagement. of the inner surface 125 of the hose 128 with the sealing member 136a.
    [043] Referring to Figures 2 and 3, the second collar portion 160 of the ferrule 104 may be disposed around the second end portion 110 of the shank 102 so as to define an annular space 188 radially between the second collar portion 160 and the second end portion 110. The second collar portion 160 may be arranged concentrically around and spaced radially outward from the second end portion 110.
    [044] Referring to Figures 2, 3 and 5, the second collar portion 160 of the ferrule 104 may include a locking feature, such as an internal thread 190. The second collar portion 160 may include a locking feature, such as a or more through holes 192 spaced around a periphery of the second collar portion 160 and axially aligned with each other. Through holes 192 may be internally threaded and may be axially disposed between an end face 194 of ferrule 104 and internal thread 190. The locking feature may prevent or substantially prevent rotation of termination fixture 106 with respect to socket 107 to maintain a metal-to-metal seal between the termination fixture 106 and the socket 107. In some deployments, spot welds are used to secure the termination fixture 106 to the socket 107.
    [045] With reference to Figures 2, 3 and 5, the intermediate portion 162 of the ferrule 104 may be arranged around the intermediate portion 112 of the shank 102. The intermediate portion 162 may be arranged concentrically around and secured to the intermediate portion 112. Referring to Figures 2 and 3, the intermediate portion 162 may include an internal thread 196, which may be continuous with the internal thread 190 of the second collar portion 162 of the ferrule 104. The internal threads 190, 196 may be straight threads. The internal thread 196 of the intermediate portion 162 of the ferrule 104 may threadably engage with the external thread 154 of the intermediate portion 112 of the shank 102. A leading edge 198 of the internal thread 196 may be flush against the third shoulder 156 of the shank 102 by means of the complete engagement of the internal thread 196 of the ferrule 104 and the external thread 154 of the stem 102.
    [046] With reference to Figures 1 and 2, the termination fixture 106 may be formed as a tubular structure. Termination attachment 106 may be partially disposed around second end portion 110 of stem 102 and into second collar portion 160 of ferrule 104. Termination attachment 106 may sealingly engage with stem 102 and termination attachment 106 may sealably engage with shank 102. termination 106 may be secured to ferrule 104. As shown in Figures 1 and 2, termination attachment 106 may be threaded into one end for threaded attachment with hose end fitting 107. Termination attachment 106 may be chamfered into a opposite end for welded attachment with an end termination 200, such as a flange 201, a wing joint, or other suitable connections. In the example shown, the termination fixture 106 may be called a welded nipple. In some examples, the end cap 106 may be formed or machined integrally as a single structure with the end cap 200. The end cap 106 may include a first end portion 202 and a second end portion 204. end portion 202 may be at least partially received within the annular space 188 defined between the second collar portion 160 of the ferrule 104 and the second end portion 110 of the shank 102. The second end portion 204 of the termination attachment 106 may be arranged at least partially beyond the end face 194 of the ferrule 104.
    [047] The first end portion 202 of the termination fixture 106 may be threadedly secured to the ferrule 104. The first end portion 202 may include an external thread 206 that threadably engages the internal thread 190 of the second end portion 206. collar 160 of the ferrule 104, thereby enabling the termination fitting 106 to be secured to the hose end fitting 107 after attaching the stem 102 and ferrule 104 to the end portion 126 of the hose 128. The threaded engagement between the fitting end cap 106 and ferrule 104 may provide a mechanical advantage to attract end cap attachment 106 to ferrule 104 for connection, as well as to form an impermeable seal with stem 102.
    [048] The first end portion 202 of the termination fixture 106 may be engageable with the second end portion 110 of the shank 102 to form an impermeable interface with the shank 102. Referring to Figures 1 and 3, the first portion end cap 202 may include a cylindrical or substantially cylindrical inner surface 208 which may define one or more stepped surfaces. The inner surface 208 may include a first or front surface 210, a second or rear surface 212, and a radial shoulder 214 disposed between the first and second surfaces 210, 212. The first surface 210 may have an inner diameter greater than the second surface 212. The radial shoulder 214 may be oriented transversely (e.g. perpendicularly) to the first and second surfaces 210, 212.
    [049] The sealing member 150 may contact the opposing surfaces 142, 210 of the stem 102 and the termination fixture 106, respectively, to provide an impermeable interface between the stem 102 and the termination fixture 106. The first surface 210 may radially oppose second surface 144 of stem 102 and may be disposed sufficiently close to second surface 144 to prevent sealing member 150 from being displaced or extruded between surfaces 144, 210 due to positive internal fluid pressure of the hose 128. The one or more support rings 152 can help prevent the sealing member 150 from being displaced or extruded between the surfaces 144, 210. The second surface 212 may radially oppose the first surface 142 of the stem 102 and may be disposed sufficiently close to the first surface 142 to prevent the sealing member 150 from being displaced or extruded between the surfaces 142, 212 due to negative pressure pressure or vacuum in hose 128.
    [050] A tapered or angled surface 211 may be contiguous with the first surface 210 of the termination fixture 106. The angled surface 211 may form an impermeable interface with the shank 102. In some implementations, the angled surface 211 forms a metal-to-metal seal. parametal 149 with angled surface 147 of shank 102 (see Figure 3). In these deployments, the interface between the termination fixture 106 and the stem 102 provides two impervious seals: a first seal formed by the sealing member 150 and a second seal formed by the engagement of the angled surfaces 147, 211. metal 149 may be formed on either of the axial sides of the sealing member 150. Referring to Figure 3, the metal-to-metal seal 149 is formed behind the sealing member 150. Referring to Figure 7, the seal metal-to-metal 449 is formed ahead of sealing member 450. Angled surface 211 may transition into a forward end face 220 of termination fixture 106.
    [051] Termination fixture 106 may provide a visual indicator of a proper connection to stem 102 and ferrule 104. The visual indicator may be used as a safety indicator to indicate that termination fixture 106 is fully engaged with the shank 102 and ferrule 104. Referring to Figures 1 and 3, the termination attachment 106 may include an insertion marking 216 formed on the outer surface 218 of the termination attachment 106. Insertion marking 216 may be axially spaced from one face end face 220 of termination fixture 106 by a distance substantially corresponding to the axial length between end face 194 of ferrule 104 and second shoulder 148, so as to define the transition between second end portion 110 and intermediate portion 112 of the shank 102. Axial alignment of the marking 216 with the end face 220 may indicate a sufficiently sealed engagement between the termination fixture 106 and the shank 102 Insertion marking 216 may be a groove, ink or other suitable marking. Insertion marking 216 may extend continuously or discontinuously around outer surface 218 of termination fixture 106. Insertion marking 216 may be annular to provide a visual indication of a suitable connection from any viewing angle.
    [052] Termination attachment 106 may include a locking feature to axially secure termination attachment 106 to ferrule 104, thereby preventing termination attachment 106 from unscrewing from ferrule 104 and to provide a visual indication of a suitable connection between the termination fixture 106, the ferrule 104 and the shank 102. Referring to Figure 3, the locking feature may be an annular locking groove 222 formed in the outer surface 218 of the termination attachment 106. annular lock 222 may be axially spaced from the leading end face 220 of the termination attachment 106 by a distance to ensure that a sufficient seal is formed between the termination attachment 106 and the shank 102. By axially aligning the annular locking groove 222 With the through holes 192, the thrust screws 215 (see Figure 8, for example) can be inserted into the annular locking groove 222 to axially secure the thermo clamp. inaction 106 to the ferrule 104.
    [053] With reference to Figures 2 and 5, the second end portion 204 of the end cap 106 may include a chamfer 224 to facilitate soldering the end end cap 200 (see weld 227 in Figures 2, 5 and 6) to the termination attachment 106. As noted earlier, although a flange 201 is shown, other types of termination connections such as wing unions, hubs and other suitable high pressure connections may be used. In this way, the end cap 106 can provide strength in the field, as any of several types of end caps can be welded to the end cap 106. After the end cap 200 is soldered to the end cap 106, the end cap 106 end cap 200 and associated end cap 106 may be threadedly attached to ferrule 104, thereby providing a watertight seal with shank 102. Alternatively, end cap 106 may be formed or machined integrally with an end cap. desired 200.
    [054] To assemble the hose coupling 100, the ferrule 104 may be aligned coaxially with the stem 102 and threaded to the stem 102 until a leading edge 198 of the internal thread 196 of the intermediate portion 162 of the ferrule 104 is flush against the third shoulder. 156 of intermediate portion 112 of stem 102. End portion 126 of hose 128 may be ribbed externally, internally, or both and slid into annular space 166 defined radially between first collar portion 158 of ferrule 104 and first portion end portion 108 of stem 102. First collar portion 158 of ferrule 104 may be radially compressed around end portion 126 of hose 128, first end portion 108 of stem 102 may be radially expanded by an axially disposed movable plug into inner opening 114 of stem 102, for example, or both to secure stem 102 and ferrule 104 to end portion 126 of hose 128.
    [055] After the stem 102 and ferrule 104 are attached to the end portion 126 of the hose 128, the termination attachment 106 may be attached to an opposite end of the ferrule 104. The termination attachment 106 may be associated with a termination attachment. end 200, through welding, integral machining, or other fabrication techniques, prior to attachment to socket 107. Termination attachment 106 may be threadedly received within second collar portion 160 of ferrule 104 until sufficient engagement of the thread internal thread 190 of ferrule 104 and external thread 206 of butt fixture 106, which may be indicated by axial alignment of marking 216 of ferrule 106 with end face 194 of ferrule 104. The threaded engagement of butt fixture 106 and of the ferrule 104 can form an impermeable interface between the inner surface 210 of the termination attachment 106 and the outer surface 142 of the shank 102 by means of the sealing member 150, as well as between the tapered surface 147 of shank 102 and tapered surface 211 of termination fixture 106.
    [056] After the termination attachment 106 is secured to the ferrule 104 and sealed against the stem 102, the termination attachment 106 may be axially locked to the ferrule 104 to prevent unthreading of the termination attachment 106 from the ferrule 104. axial alignment of the through holes 192 of the second collar portion 160 of the ferrule 104 with the annular locking groove 222 of the termination fixture 106, one or more thrust screws 215 (see Figure 8, for example) may be rotated within the holes internally threaded through holes 192 for radially inserting a portion of thrust screws 215 into annular locking groove 222 to obstruct axial movement of termination fixture 106 with respect to ferrule 104 and thus shank 102.
    [057] The ferrule 104, the end fixture 106, or both may include protrusions or a similar surface modification, which can improve the grip and turn of the ferrule 104, the end fixture 106, or both, specifically during manual adjustment. Ferrule 104, termination fixture 106, or both may include engagement or keying adaptations, such as a hex, holes, slots, planes or holes, which may receive a wrench or other tool used to adjust/loosen and/or generally applies torque to ferrule 104, end cap 106, or both when assembling hose coupling 100.
    [058] With the exception of the intermediate portion 112 of the shank 102 and the intermediate portion 162 of the ferrule 104 illustrated in Figures 1 to 5, the coupling 300 illustrated in Figure 6 has the same features and operation as the coupling 100. Consequently, the discussion above of the features and operation of the coupling 100 illustrated in Figures 1 through 5 shall be considered equally applicable to the coupling 300 illustrated in Figure 6, except as noted in the following discussion concerning the attachment of the ferrule 304 to the stem 302. The reference numerals used in the Figure 6 generally corresponds to the reference numerals used in Figures 1 to 5 to reflect similar fixtures, with the exception that the first digit of each reference numeral associated with a modified part or feature is increased by two. Referring to Figure 6, the intermediate portion 362 of the ferrule 304 of the hose coupling 300 may be driven into the intermediate portion 312 of the stem 302 to secure the ferrule 304 to the stem 302 and promote proper alignment between the corresponding features of the ferrule 304 and the shank 302. The intermediate portion 362 of the ferrule 304 may include an annular inner ridge 305 and the intermediate portion 312 of the stem 302 may include a corresponding annular receiving groove 313. To attach the ferrule 304 to the stem 302, the annular ridge 305 may be driven into the annular groove 313. Driving the ferrule 304 into the stem 302 can eliminate the need to weld the ferrule 304 to the stem 302 or perform a special heat treatment which can corrode the socket 307.
    [059] With reference to Figure 7, the previous discussion of the features and operation of the couplings 100, 300 illustrated in Figures 1 to 6 shall be considered equally applicable to the coupling 400 illustrated in Figure 7, except as noted in the following discussion concerning sealing metal-to-metal connection between shank 402 and termination fixture 406. Reference numerals used in Figure 7 generally correspond to reference numerals used in Figures 1 through 6 to reflect similar fixture parts, with the exception that the first digit of each reference numeral associated with a modified part or feature is increased by three with respect to Figures 1 to 5 and by one with respect to Figure 6.
    [060] With continued reference to Figure 7, a metal-to-metal seal 449 between the termination fixture 406 and the shank 402 may be formed in front of the sealing member 450, which may be disposed in front of the shoulder 446. metal-to-metal seal 449 may be defined by an impermeable interface between an angled or tapered surface 411 of termination fixture 406 and an angled or tapered surface 447 of shank 402. Metal-to-metal seal 449 may be formed to a smaller diameter than the metal-to-metal seal 149 of the coupling 100.
    [061] With reference to Figure 8, the foregoing discussion of the features and operation of the couplings illustrated in Figures 1 through 7 shall be considered equally applicable to the coupling 500 illustrated in Figure 8, except as noted in the following discussion concerning the termination attachment 506 and end cap 200. The reference numerals used in Figure 8 generally correspond to the reference numerals used in Figures 1 through 7 to reflect similar fixture parts, with the exception that the first digit of each reference numeral associated with a modified part or feature is increased by four in relation to Figures 1 to 5.
    [062] With continued reference to Figure 8, coupling 500 may include a stem 502, a ferrule 504 attached to stem 502, a termination fixture 506 in sealing engagement with stem 502 and in threaded engagement with ferrule 504 and a end cap 200 permanently attached to end cap 506 by a solder 627. End cap 200 may be externally or internally threaded into a terminal end opposite end cap 506 and may be referred to as a pin end 601.
    [063] With continued reference to Figure 8, the coupling 500 may include a second ferrule or superferro 603 attached to the termination fixture 506. The superferro 603 can encircle the socket 507 and protect the socket 507 from external damage. Survival 603 may extend axially over the ferrule 504 of the socket 507, can be arranged concentrically around the ferrule 504, and can be spaced radially away from the ferrule 504. Although not shown in Figure 8, a protective shield can be arranged. radially between the ferrule 504 and the superferro 603, which can secure the protective shield to the end portion of the hose. The protective shield may encircle the outer surface of the hose and may extend over a substantial portion of the length of the hose. The protective shield can protect the hose and an insulation layer that covers the hose. The protective shield can be constructed from stainless steel and can be formed into a flexible spiral configuration.
    [064] Still referring to Figure 8, an annular plate 605 can be attached to the end cap 506 axially between the end cap 200 and the ferrule 504. An inner surface of the annular plate 605 can be mounted to an outer surface of the fixture. of termination 506 and held in place by a solder, for example. The annular plate 605 can be welded to the termination fixture 506 before securing the termination fixture 506 to the socket 507. One end of the second ferrule 603 can be secured to an outer surface of the annular plate 605 and the opposite end of the second ferrule 603 can be be arranged around an exposed portion of the hose. The second ferrule 603 may be secured to the annular plate 605 by one or more fasteners 607, such as pressure screws. In this configuration, an annular space 609 defined between the second ferrule 603 and the ferrule 504 can be closed at one end by the annular plate 605 and can be opened at an opposite end. Termination fixture 506 may be longer than the termination fixtures 106, 406, 506 shown in Figures 1 through 7 to provide more surface area for attaching the annular plate 605 to the termination fixture 506. As should be noted, the second ferrule 603, annular plate 605, or both can be used with the couplings shown in Figures 1 through 7.
    [065] With reference to Figure 9, the foregoing discussion of the features and operation of the couplings illustrated in Figures 1 through 8 shall be considered equally applicable to the coupling 600 illustrated in Figure 9, except as noted in the following discussion concerning the 606 termination attachment and the 607 socket. The reference numerals used in Figure 9 generally correspond to the reference numerals used in Figures 1 through 8 to reflect similar fixture parts, with the exception that the first digit of each reference numeral associated with a modified part or feature is increased by five in relation to Figures 1 to 5.
    [066] With continued reference to Figure 9, coupling 600 may include a shank 602, a ferrule 604, an end cap 606 and an end cap 200. The ferrule 604 can be secured to stem 602 and define an annular space 666 between ferrule 604 and stem 602 configured to receive an end portion of a hose. End cap 606 may be secured to shank 602 in oppositional relationship to ferrule 604. End cap 200 may be machined integrally with cap cap 606. End cap 200 may be externally threaded into a terminal end opposite end cap 606 and may be called a pin end 701.
    [067] Still referring to Figure 9, the end cap 606 may be threaded to the shank 602. The end cap 606 may include an internal thread for threaded engagement with an external thread of the shank 602 to secure the end cap 200 to the socket 607. End fixture 606 and stem 602 may include corresponding locking features to prevent the termination fixture 606 from unscrewing from socket 607. The stem locking feature 602 may include an annular locking groove 622 and the shank 602 locking feature. End fastener lock 606 may include one or more through holes 692 that can be axially aligned with annular locking groove 622 by sealing engagement between termination fastener 606 and shank 602. One or more set screws (see the pressure screws 215 in Figure 8, for example) can be threadedly received in the through holes 692 of the termination fixture 606 and can protrude into teeth. annular locking groove 622 of shank 602 to prevent or substantially prevent rotation of termination fixture 606 relative to shank 602.
    [068] With continued reference to Figure 9, the end cap 606 can form an impermeable interface with the stem 602. The interface between the cap end fitting 606 and the stem 602 can provide two watertight seals: a first seal formed through a sealing member 650 and a second metal-to-metal seal 649 axially displaced from sealing member 650. As shown in Figure 9, metal-to-metal seal 649 may be formed axially into sealing member 650 and axially outward of the threaded engagement between termination fitting 606 and stem 602. Another sealing member 636 may be seated on stem 602 radially inwardly of ferrule 604 to sealingly engage an inner surface of a hose.
    [069] The ferrule 604, the end fixture 606, or both may include protrusions or a similar surface modification, which may improve the grip and turn of the ferrule 604, the end fixture 606, or both. Ferrule 604, termination fixture 606, or both may include engagement or keying adaptations 651, such as a hex, holes, slots, planes, or holes, which may receive a wrench or other tool used to adjust/loosen and/or generally applies torque to the ferrule 604, the end cap 606, or both when assembling the hose coupling 600. Although not shown in Figure 9, the coupling 600 may include an insertion marking to indicate that the end cap 606 is completely engaged with shank 602. In some examples, an insert marking is formed on the outer surface of shank 602 and axial alignment of front end face 620 of termination attachment 606 with the insert marking indicates proper sealed engagement between the shank attachment 606. termination 606 and shank 602. The axial distance between the opposing end faces 620, 621 of termination fixture 606 and ferrule 604, respectively, can be increased by augmentation of stem 602, for example, to facilitate visualization of the insertion marking on stem 602.
    [070] The supplied hose coupling can overcome many problems of other hose couplings, such as risk of heat damage and time-consuming removal of dies when attaching the hose coupling to an end portion of a hose. The supplied hose coupling can provide a reliable way to add a wide variety of end terminations to a single hose end fitting project. For large, heavy end terminations, crimping or forging operations can be completed with lighter, easier-to-handle couplings without the need to remove dies to remove couplings from equipment. If soldering is required for an end cap, the soldering operation can be performed in a separate simple process, without concern about hanging the hose. In other words, the termination fitting may be associated with an end cap before attaching the termination fitting to a hose via the hose end fitting.
    [071] In some deployments, the supplied hose coupling may include recesses in the ferrule that reduce crimping force and ferrule growth, as the mid-return material may not move as much as the end recess material, leading to a rounded appearance after crimping. The multi-diameter outer contour of the ferrule can be particularly suitable for crimping. In some plastic-lined hose applications, the supplied hose coupling rod may include several advantageous features. In some examples, the hose coupling includes tapered burrs with relatively sharp edges that pinch the plastic and resist the flow of the plastic at high temperatures and pressures. In some examples, one or more seals prevent the transported medium from escaping between the rod and the hose. This can be particularly useful in the event that compression is reduced between the hose and rod with exposure to heat and pressure.
    [072] In some deployments, the hose coupling may include a region where the hose reinforcement layer is tightened both internally and externally. The region may include offset ridges on the shank and ferrule to create a multi-crack engagement. In some deployments, an end capping feature allows any number of hose ends to be attached to the fitting after the fitting is secured to the hose, to allow the fitting to readily utilize a wide variety of end caps. The termination clamp feature can reduce fitting weight, facilitate handling when attaching the fitting to the hose, and allow removal of the hose assembly from the fixture without removing dies.
    [073] The above description has a wide application. The Hose Coupling can be used in high pressure applications with a 3 to 4 inch (7.62 to 10.16 cm) hose, but not limited to, which can be rubber or plastic. The termination fixture may be a nipple or other tubular structure, which can be welded, integrally machined, or otherwise associated with a desired end cap so that users can attach any desired end cap to the termination fixture, in order to provide robustness to the hose coupling, especially in field applications. The termination fixture may include an internal or external thread, and the ferrule or shank may include a corresponding internal or external thread. The termination fixture and the stem can form a seal, which may be internal or external to both the termination fixture and the stem. The seal may be formed by a sealing member, which may be captured by a groove in the termination fixture or stem, or may be captured between shoulders of the termination fixture and the stem. Discussion of any example is for explanatory purposes only and is not intended to suggest that the scope of the disclosure, including the claims, is limited to those examples. In other words, while the illustrative examples of the disclosure have been described in detail herein, it is to be understood that the inventive concepts may otherwise be incorporated and employed in various ways and that the appended claims are intended to be interpreted to include such variations, except as limited by the prior art. For example, the termination fixture may be externally and/or internally threaded. In some examples, the termination fixture may have a female or internal thread configured to threadably engage a male or external thread on the shank to secure the termination fixture to the socket.
    [074] The above discussion has been presented for purposes of illustration and description and is not intended to limit disclosure to the form or forms disclosed herein. For example, various features of disclosure are grouped into one or more aspects, modalities, or configurations for the purpose of simplifying disclosure. However, it should be understood that various features of particular aspects, modalities or configurations of the disclosure may be combined into alternative aspects, modalities or configurations. Furthermore, the following claims are hereby incorporated into the present Detailed Description by this reference, wherein each claim stands alone as a separate embodiment of the present disclosure.
    [075] All directional references (e.g. proximal, distal, superior, inferior, up, down, left, right, lateral, longitudinal, front, rear, top, bottom, above, below, vertical, horizontal, radial , axial, clockwise and counterclockwise) are used for identification purposes only to aid the reader's understanding of the present disclosure, and do not create limitations, particularly as to the position, orientation or use of the present disclosure. Connection references (eg, fixed, coupled, connected, and joined) should be interpreted broadly and may include intermediate members between a collection of elements and relative motion between elements, unless otherwise noted. Thus, connection references do not necessarily infer that two elements are directly connected and in fixed relationship to each other. Identifying references (eg, primary, secondary, first, second, third, fourth, etc.) are not intended to connote importance or priority, but are used to distinguish one feature from another. The drawings are for illustrative purposes only and the dimensions, positions, order and relative sizes reflected in the accompanying drawings may vary.
    权利要求:
    Claims (19)
    [0001]
    1. Hose coupling (100, 400, 600, 300, 500) for attachment to an end portion (126) of a hose (128), FEATURED in that the hose coupling (100, 400, 600, 300, 500) comprises : a fitting (107, 407, 607, 307, 507) attachable to the end portion (126) of the hose (128), the fitting (107, 407, 607, 307, 507) comprising a ferrule (104, 404, 604) , 304, 504) and a shank (102, 402, 602, 302, 502), the ferrule (104, 404, 604, 304, 504) attached to the shank (102, 402, 602, 302, 502); a termination fixture (106, 406, 606, 506) secured to the fitting (107, 407, 607, 307, 507) opposite the end portion (126) of the hose (128); and an end cap (200) associated with the cap attachment (106, 406, 606, 506); wherein the termination attachment (106, 406, 606, 506) forms an impermeable interface with the stem (102, 402, 602, 302, 502); wherein the impermeable interface comprises: a first seal formed by a sealing member (150, 450, 650) sealed against opposing surfaces (142, 210) of the stem (102, 402, 602, 302, 502) and the termination fixture (106, 406, 606, 306, 506); and a second seal (149, 449, 649) formed between opposing tapered surfaces (147, 211, 447, 411) of the shank (102, 402, 602, 302, 502) and the end cap (106, 406, 606, 306, 506), wherein the tapered surfaces (147, 211, 447, 411) are axially displaced from the sealing member (150, 450, 650) by opposing cylindrical surfaces (144, 210, 142, 212) of the shank (102, 212). 402, 602, 302, 502) and the termination attachment (106, 406, 606, 306, 506).
    [0002]
    2. Hose coupling, according to claim 1, CHARACTERIZED by the fact that the termination fixture (606) is in threaded engagement with the fitting (607) through internal threads on the termination fixture (606), which correspond to the external threads on the shank (602).
    [0003]
    3. Hose coupling, according to claim 1, CHARACTERIZED by the fact that the termination fixture (106) is in threaded engagement with the fitting (107, 307) by means of external threads (206) in the termination fixture ( 106) which correspond to the internal threads (190) on the ferrule (104, 304).
    [0004]
    4. Hose coupling, according to claim 1, CHARACTERIZED by the fact that the termination fixture (106, 406, 606, 506) is in threaded engagement with the fitting (107, 407, 607, 307, 507).
    [0005]
    5. Hose coupling according to claim 4, CHARACTERIZED in that the termination attachment (106, 606) and ferrule (104, 604) include corresponding locking features to prevent the termination attachment (106, 604) from 606) unscrews from the socket (107, 607).
    [0006]
    6. Hose coupling according to claim 5, CHARACTERIZED by the fact that: the termination fixture locking feature (106, 606) comprises an annular locking groove (222, 622); the ferrule locking feature (104, 604) comprises one or more through holes (192, 692) axially aligned with the annular locking groove (222, 622); and one or more pressure screws (215) are received in the through holes (192, 692) and project into the annular locking groove (222, 622).
    [0007]
    7. Hose coupling, according to claim 1, CHARACTERIZED by the fact that the end termination (200) is welded to or machined integrally to the termination fixture (106, 406, 506).
    [0008]
    8. Hose coupling, according to claim 7, CHARACTERIZED in that the termination fixture (106) comprises a tubular structure that is threaded at one end (202) and chamfered (224) at an opposite end (204) .
    [0009]
    9. Hose coupling, according to claim 1, CHARACTERIZED in that it additionally comprises a second ferrule (603) fixed to the termination fixture (506).
    [0010]
    10. Hose coupling, according to claim 9, CHARACTERIZED by the fact that the second ferrule (603) extends axially over the ferrule (504) and is spaced radially away from the ferrule (504).
    [0011]
    11. Method for attaching a hose coupling (100, 400, 600, 300, 500) to a hose (128), CHARACTERIZED in that it comprises: inserting an end portion (126) of a hose (128) into a annular space (166, 666) defined by a socket (107, 407, 607, 307, 507) comprising a ferrule (104, 404, 604, 304, 504) and a shank (102, 402, 602, 302, 502 ); radially constrain the annular space (166, 466) to secure the fitting (107, 407, 607, 307, 507) to the end portion (126) of the hose (128); and after securing the fitting (107, 407, 607, 307, 507) to the end portion (126) of the hose (128), threadably engaging a termination fitting (106, 406, 606, 506) to the fitting (107). , 407, 607, 307, 507) in oppositional relationship to the end portion (126) of the hose (128), which further comprises forming an impermeable interface between opposing surfaces of the termination fixture (106, 406, 606, 506) and of the shank (102, 402, 602, 302, 502) during threaded engagement of the termination fixture (106, 406, 606, 506) to the socket (107, 407, 607, 307, 507), wherein the waterproof interface comprises : a first seal formed by a sealing member (150, 450, 650) sealed against opposing surfaces (142, 210) of the stem (102, 402, 602, 302, 502) and the termination fixture (106, 406, 606 , 506); and a second seal (149, 449, 649) formed between opposing tapered surfaces (147, 211, 447, 411) of the shank (102, 402, 602, 302, 502) and the end cap (106, 406, 606, 506), wherein the tapered surfaces (147, 211, 447, 411) are axially displaced from the sealing member (150, 450, 650) opposing the cylindrical surfaces (144, 210, 142, 212) of the shank (102, 212). 402, 602, 302, 502) and the termination attachment (106, 406, 606, 506).
    [0012]
    12. Method according to claim 11, CHARACTERIZED in that it further comprises rotating the termination fixture (106, 606) with respect to the fitting (107, 607) until a marking on an external surface of the termination fixture ( 106, 606) is aligned with an end face (194, 620) of the ferrule (104, 604).
    [0013]
    13. Method according to claim 11, CHARACTERIZED in that radially constraining the annular space (166, 666) compresses a sealing element (136, 636) arranged around the rod (102, 602) against an inner surface of the hose (128) to form an impermeable interface between the sealing member (136, 636) and the hose (128).
    [0014]
    14. Method according to claim 11, CHARACTERIZED in that it additionally comprises axially locking the termination attachment (106, 406, 606, 506) to the fitting (107, 407, 607, 307, 507) to prevent unscrewing of the termination attachment (106, 406, 606, 506) of the socket (107, 407, 607, 307, 507).
    [0015]
    15. Hose assembly, CHARACTERIZED in that it comprises: a hose (128) comprising: an inner tube (125); a cable reinforcement layer (124) surrounding the inner tube (125); and a cover layer (134) surrounding the cable reinforcement layer (124); and the hose coupling (100, 400, 600, 300, 500) defined in claims 1 to 10, crimped or forged into an end portion of the hose (128), wherein the ferrule (104, 404, 604, 304, 504) is a unitary ferrule disposed over the end portion of the hose (128); and the rod (102, 402, 602, 302, 502) is a unitary rod disposed in the end portion of the hose (128).
    [0016]
    16. Assembly according to claim 15, CHARACTERIZED in that the coupling additionally comprises a sealing element (136, 636) arranged around the rod (102, 602) and sealed against an inner surface of the inner tube (125 ).
    [0017]
    17. Assembly according to claim 16, CHARACTERIZED in that the ferrule (104) includes an inner toothed edge (176) positioned axially into the sealing element (136) to facilitate an impermeable interface between the sealing element (136) and the inner surface of the inner tube (125).
    [0018]
    18. Hose assembly, according to claim 15, CHARACTERIZED in that the inner tube (125) is at least partially ribbed along the end portion of the hose (128).
    [0019]
    19. Hose assembly according to claim 18, CHARACTERIZED in that the cover layer (134) is at least partially fluted along the end portion of the hose (128).
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    同族专利:
    公开号 | 公开日
    SG11201608280TA|2016-10-28|
    US20150292661A1|2015-10-15|
    CN106461136B|2020-01-21|
    CN106461136A|2017-02-22|
    WO2015160502A1|2015-10-22|
    CA2944883A1|2015-10-22|
    RU2016144357A|2018-05-14|
    EP3132175A1|2017-02-22|
    US20200011463A1|2020-01-09|
    US10514120B2|2019-12-24|
    CA2944883C|2019-08-06|
    BR112016024032A2|2017-08-15|
    AU2015248166A1|2016-10-20|
    AU2015248166B2|2018-02-15|
    EP3132175B1|2018-06-27|
    MX2016013500A|2017-02-14|
    RU2016144357A3|2018-05-14|
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    法律状态:
    2020-01-28| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-08-03| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    2021-11-23| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2022-02-01| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 31/03/2015, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US14/252,741|2014-04-14|
    US14/252,741|US10514120B2|2014-04-14|2014-04-14|High pressure, large inner diameter hose coupling with termination attachment|
    PCT/US2015/023660|WO2015160502A1|2014-04-14|2015-03-31|High pressure, large inner diameter hose coupling with termination attachment|
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