• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:SE1000095A1
    申请号:SE1000095
    申请日:2010-02-02
    公开日:2011-08-03
    发明作者:Per Nyberg；Gerhard Kopplin
    申请人:Mann Teknik Ab；
    IPC主号:
    专利说明:

    - an elongate valve which is axially movable in the valve hole between an inner position for closing said bypass connection to an outer position for opening said bypass connection, whereby fluid under pressure in said space is allowed to flow to the environment, before the lid completely removed from the mouth part, and - a handle rotatably arranged on the outside of the lid, which comprises a storage head for rotatably storing the handle at the lid about an axis near said valve device, the storage head having a cam surface arranged to support the valve against its rear free end and having a cam curve with an eccentric extent relative to the storage shaft to allow movement of the valve for closing and opening said bypass connection, respectively.
    The invention will be described in more detail with reference to the drawings.
    Figure 1 is a cross-section of a lid according to an embodiment of the invention and an outer pipe part of a pipe connection to a tank, the lid being in locked and to the inner closed position.
    Figure 2 is an enlargement of the circled portion of Figure 1.
    Figure 3 shows the lid and the outer pipe part in a partially locked and to the inner open position.
    Figure 4 is an enlargement of the circled portion of Figure 3.
    Figure 5 shows the lid according to Figures 1 and 3 in position for fastening to the mouth part of the outer pipe part, wherein a valve guiding handle is in the raised position. Figure 6 is an enlargement of the circled portion of Figure 5.
    Figure 7 shows the lid according to figure 6 in a storage position, the handle being in the lowered position.
    Figure 8 shows the lid according to figure 7 from the side and with the handle removed.
    Figures 9 and 10 show the handle of the lid according to Figure 7 in two different views.
    Figure 1 shows a pressure-tight lid 12 and an outer pipe part 1 of a fixed pipe connection to a stationary or movable tank (not shown), which contains a fluid, which pipe connection constitutes an outlet from the tank. The pipe part 1 constitutes a trade of a coupling, which comprises an outer female part (not shown). The trade 1 comprises a spherical housing 2, which contains a valve (not shown), which is arranged to be moved to an opening position for fluid flow under the influence of the female part, when this is connected to the trade part 1. The housing 2 of the trade 1 has an orifice part 11 , which defines a center axis Cl, which is also the center axis of the housing. The mouth part 11 encloses a space 16, which is open to the outside, when the lid 12 has been removed. The mouth part 11 has a flat, radial, annular, outer surface 3, which seen in a longitudinal section of the housing 2 is thus perpendicular to the center axis C1 of the mouth part 11.
    The lid 12 and the mouth part 11 have cooperating first and second engaging means, which are arranged to fix the lid 12 in axial direction and in rotation direction relative to the mouth part 11. In the embodiment shown, the first engaging member for the axial fixation of the lid 12 comprises a circumferential groove 4 of predetermined depth extending on the outside of the housing 2. The groove 4 is located at a predetermined distance from said outer surface 3, whereby a circumferential, radial flange 5 is formed between the outer surface 3 and the groove 4. The flange 5 has three evenly distributed, axially continuous recesses 6, which are thus located 120 ° from each other. The inner surface 7 of the flange 5, which thus delimits the groove upwards, is flat and parallel to the outer surface 3. The groove 4 is delimited at the bottom by a lower, flat, circumferential surface 10 with an outer diameter, which corresponds to the outer diameter of the outer part of the mouth part. surface 3.
    Furthermore, the lid 12 and the mouth part 11 have cooperating annular sealing means, which seal said space 16 towards the surroundings 25. In the embodiment shown, the mouth part 11 of the housing 2 has a circumferential recess 8, which forms a sealing surface 9, which extends downwards from the outer surface 3. The sealing surface 9 is shown with a slight inclination inwards, which can be up to 7 °. The sealing surface 9 can alternatively be cylindrical.
    Figure 3 shows the pressure-tight lid 12 in an open position ready to be mounted on the mouth part 11. The lid 12 has a circular top part 13 and a circumferential, downward-facing collar 14, which has a cylindrical inside 15. The top part 13 and the collar 14 are made in one piece. The collar 14 carries on its inside three, evenly distributed, engaging rollers 18, which are mounted on roller shafts 17 in the collar wall. On the inside 15 of the lid 12 there is an annular recess 21, which has its bottom surface 22 located at a predetermined distance from the engaging rollers 18, which distance is slightly larger than the axial dimension (thickness) of the flange 5 of the trade 1 so that an annular space 23 is formed (see figure 1) between the opposite surfaces 3 and 22, when the lid 12 is mounted on the trade 1. The bottom surface 22 is flat and perpendicular to the center axis C2 of the lid 1. The recess 21 has a predetermined width, i.e. radially extending and is defined laterally by the upper part of the inside of the collar 14 and an opposite cylindrical inner surface 24, which together with the sealing surface 9 of the housing 2 forms a sealed boundary between the mouth 11 of the housing 2 and the environment 25. outside the housing 2. The sealed boundary is obtained in that said sealing means also comprise a sealing ring 26, which is thereby arranged in a circumferential groove in the inner surface 24 for sealingly cooperating with the sealing surface 9 of the mouth part 11, see figure 1.
    To achieve the axial reading, the lid 12 is placed on the mouth part 11, when it is in an open position, as shown in figure 5, whereby the engaging rollers 18 are aligned with and passed through the axial recesses 6 in the flange 5 of the mouth part 11 down to the groove 4 , after which the lid 12 is rotated so that the engaging rollers 18 are brought into engagement with the flange 5 as shown in figure 3. The engaging rollers 18 exert a certain clamping force against the inner surface 7 of the flange 5 so that the sealing ring 26 is pulled down and against the sealing surface 9 of the mouth part 11 with accompanying sealing effect .
    The second locking means for fixing against rotation comprises in the embodiment shown any of the three said axial recesses 6 of the mouth part 11 and a special locking device of the lid 12 for cooperating with said recess 6 for effecting a rotational fixation.
    The locking device is arranged midway between two engaging rollers 18, i.e. 60 ° from each of these. The locking device comprises a fixed part and a movable part. The collar 14 of the lid 12 is then provided with an axial recess, which forms a side opening 27 (see Figures 4 and 5) through the wall of the collar 14 in connection with the underside 22 of the top part 13 and a recessed, vertical surface 28 (see figure 4). at or level with the top part 13. Said fixed part comprises two bearing ears 29, 30 (see figure 9), which are arranged in said axial recess and which extend therefrom substantially radially from the lid 12 at 10 the upper part of the collar 14 and upwards so that the upper surfaces of the storage lugs 29, 30 will lie in a plane slightly above the upper surface of the top part 13. The facing insides of the bearing lugs 29, 30 are vertical and parallel to each other. The two storage lugs 29, 30 enclose between them a space 31 (see figure 9) with predetermined dimensions. This space 31 is in direct communication with said side opening 27 in the wall of the collar 14.
    Furthermore, each bearing ear 29, 30 is provided with a through-hole, upper hole and a through-hole, lower hole, the two upper holes of the bearing ears 29, 30 being axially aligned with each other as well as the two lower holes.
    The said movable part of the locking device constitutes a handle 32, which has an elongate gripping portion 33 and a storage head 34. The storage head 34 is, seen in the locking position of the handle, provided with a through-going upper hole 35 and a through-going lower hole 36, which holes are parallel to each other. The distance between the two holes 35, 36 and their diameters is the same as with the said upper and lower holes of each storage ear 29, 30 of the fixed part of the locking device. The storage head 34 is further formed with an engaging nose 37 extending straight from the inside of the storage head 34 a predetermined length equal to a plane substantially extending between the two holes 35, 36 of the storage head 34. The handle 32 is rotatably mounted at the storage ears 29, 30 by means of a shaft pin 38, which is passed through the upper holes 35 of the storage ears 29, 30 and the upper holes 35 of the storage head 34. The storage head 34 is provided with a recess 39 (see Figure 7) in its upper portion, which extends from the outside into to the upper hole 35. A coil spring 40 is provided in this recess 39 and encloses and is connected to the shaft pin 38 for spring biasing the handle 32, when this is in its upper, non-locking, outwardly directed position, the handle 32 striving for to resiliently assume its downward position. The engaging nose 37 has a sufficient length to extend through said opening 27 in the wall of the collar 14 and into the inner space 41 of the lid 12 below the top part 13 and in contact with its underside 22, which serves as a stop for further rotation. of the handle, thus the handle 32 assumes its downward, reading position. The axial recess in the collar wall, which forms said side opening 27, is deep enough to allow free passage of the engaging nose 37, when the handle 32 is rotated between its two positions. To prevent improper removal of the lid 12 from the handle 1, when the handle 32 is in the downwardly locked position, a security lock (not shown) is provided, which locks the handle 32 to the storage lugs 29, 30, e.g. a key lock with a rod which can be passed through the lower holes 36 of the storage lugs 29, 30 and the lower holes 36 of the storage head 34 when these are aligned with each other, or a locking pin which is inserted in the same way and then locked and sealed.
    The top part 13 of the lid 12 is at least adjacent to the storage ears 29, 30 and radially inside these formed with a thickening 42 which is level with the upper surfaces of the storage ears 29, 30.
    The lid 12 further comprises a valve device, which is built into its top part 13 and which comprises a radial hole 43, which is arranged in the thickened portion 42 of the top part 13 and extends from the inner, free, vertical surface 28, which is located between the bearing ears 29, 30, to an inner location located slightly radially inside the sealing ring 26 of the lid 12. The hole 43 is formed with two ledges 44, 45 so that it is divided into three cylindrical spaces of decreasing diameter towards the bottom surface 46, namely an outer space 47, a middle space 48 and an inner space 49. Furthermore, there is a first axial channel 50 in the top part 13, which extends radially inside the sealing ring 26 from the inside 51 of the top part 13 to the inner space 49 of the hole 43. A second axial channel 10 52 is arranged in the top part 13, which extends radially outside the sealing ring 26 from the recess 21 of the inside 51 of the top part 13 to the central space 48 in the hole 43.
    The valve device comprises a valve 19, which has an elongate valve rod 53 and a valve cap 57, both of which are placed in the hole 43. The valve 19 is arranged to be inserted into the hole 43 via the space 31 between the storage ears 29, 30.
    The valve rod 53 has an outer portion 54 having a diameter smaller than the diameter of the outer space 47 of the hole 43 so as to form a free space 55 for mounting a coil spring 56 which encloses the outer portion 54 of the valve rod 53 and is intended to support against the first, outer ledge in the hole 44 and against the valve cap 57. This gap 55 is thus delimited outwards by the valve cap 57, which encloses the outer end portion of the outer part 54 of the valve rod 53. Furthermore, the valve rod 53 has a central part 58 and an inner part 59. The middle valve part 58 has a sliding fit against the wall surface of the middle cavity 48 and has an annular groove for mounting an outer sealing ring 60, which prevents fluid from flowing out to said gap 55. The inner valve part 59 has a sliding fit against the inner cavity 49 wall surface and has an annular groove for mounting an inner sealing ring 61 which prevents fluid from flowing out to the central cavity 48 which has a larger diameter than the diameter of the inner valve section 59.
    This sealing effect is maintained when the valve rod 53 is depressed to its inner end position, but ceases as soon as the inner sealing ring 61 reaches the central cavity 48, when the valve rod 53 is allowed to move back outwards.
    In this non-sealing position of the inner sealing ring 61, a bypass connection is established between the interior of the mouth portion 11 and the environment 25 so that fluid can pass through the first channel 50 into the inner cavity 49, past the inner sealing ring 61, to the central the space 48 and out through the second channel 52. The handle 32 is arranged to co-operate with the valve 19 in order to keep the valve 19 depressed in the closed position with its storage head 34 in the lowered lock position and to allow the valve 19 in the opened opening position. to move from its locked position to an open position, in which fluid can flow through the valve device. The bearing head 34 is then provided with a cam surface which is constantly in contact with the valve 19 via its valve cap 57. The cam surface comprises a flat cam part 63, which is vertically aligned when the handle 32 is in the locked position, and which abuts the flat, vertical the outside of the valve cap 57. Further, the cam surface has a cam curve 64 extending from the planar portion 63 with decreasing radius relative to the center of rotation of the bearing head 34 defined by the bearing shaft 38. During rotation of the handle 32 up to the horizontal opening position, the valve cap 57 thus to follow and abut against the cam curve 64 and thereby move axially in the direction of said center of rotation together with the valve rod 53 under the action of the spring 56.
    The first and second locking means can of course be designed in other ways than those shown with respect to engaging rollers and recesses and grooves for the engaging rollers. If axial recesses 6 are not used for engaging rollers, one or more recesses must be provided in the flange of the mouth part for receiving the engaging nose 37 of the handle for fixing the lid against rotation.
    权利要求:
    Claims (7)
    [1]
    Pressure-tight lid (12) part (11) of a pipe connection from a tank with fluid, for closing a mouth, which mouth part (11) defines a center axis (C fl and encloses a space (16) which is open outwards, when the lid (12) is removed from the mouth part (11), the lid (12) and the mouth part (11) having cooperating annular sealing means which seal said space (16) towards the surroundings (25), and first and second engaging means arranged to fix the lid (12) in the axial direction and in the direction of rotation relative to the mouth part (11), characterized in that the lid (12) comprises - a valve device, which comprises - an elongate, radial valve hole (43), which is open outwards and extends through the lid. (12) top part (13) slightly past said sealing means, - a bypass connection, which comprises an inlet channel (50), which connects said space (16) of the mouth part (11) to an inner space (49) of the valve hole (43), and a outlet duct (52), which connects a central outlet (48) of the hole (43) with said environment (25) outside the mouth part (11), and - an elongate valve (19) which is axially movable in the valve hole (43) between an inner position for closing said bypass connection to a external position for opening said bypass connection, whereby fluid under pressure in said space (16) is allowed to flow to the environment (25), before the lid (12) is completely removed from the mouth part, and - a handle rotatably arranged on the outside of the lid (12) (32), comprising a storage head (34) for rotatably storing the handle (32) at the lid (12) about an axis (38) in the vicinity of said valve device, the storage head (34) having a cam surface arranged to support against the valve (19) towards its rear free end and having a cam curve (64) with an eccentric extension l1 15 in relation to the bearing shaft (38) to allow movement of the valve (19) for closing and opening said bypass connection.
    [2]
    Lid (12) according to claim 1, characterized in that said sealing means comprises an inner sealing surface (9) of the mouth part (11) and a sealing ring (26) of the lid (12), which sealing ring (26) is arranged in an (l2) center axis (C2) facing surface for sealing cooperation with the sealing surface (9) of the mouth part (ll).
    [3]
    Lid (12) according to claim 1 or 2, characterized in that said first engaging means for fixing the lid (12) comprises axial direction - a plurality of engaging rollers (18), which are evenly distributed along the inside of a collar (14) of the lid (l2), and - an annular groove (4) on the outside of the mouth part (11), which groove (4) defines an upper annular engaging surface (7) which is perpendicular to the center axis (C1) of the mouth part (l1), a radially outwardly directed flange (5) is delimited between the engaging surface (7) and an upper annular surface (3) of the mouth part (11), which flange (5) is provided with axially through recesses (6), the number and even distribution of which corresponds to the number and distribution of said engaging rollers (18) and which recesses (6) are arranged for receiving and carrying the engaging rollers (18) into the groove (4), the lid (12) being arranged to be rotated to an axially fixing locking position a distance which is half of the sector angle enclosed by two nearby interventions - rolls (l8).
    [4]
    Lid (l2) according to any one of claims 1-3, characterized in that - said second engaging means for fixing the lid (l2) against rotation comprises a recess in the outside of the mouth part (ll), and that said storage head (34) is provided with an engaging nose (37) on its side facing the lid (12) for insertion into said recess by turning the handle (32) to the locking position, in which the storage head (34) is simultaneously arranged to keep the valve (19) depressed.
    [5]
    Lid (12) according to claim 4, characterized in that said recess in the outside of the mouth part (11) is formed by any of said plurality of axial recesses (6) for passing the engaging rollers (18).
    [6]
    Lid (12) according to any one of claims 4 and 5, characterized in - that the collar (14) of the lid (12) in connection with said valve hole (43) has an axial recess, which forms a side opening (27) to the inside of the collar (14) for carrying out the engaging nose (37), and - that two bearing ears (29, 30) are arranged to project on each side of the valve hole (43), which between them support a shaft pin (38) for rotatable storage of the handle head (32) of the handle (32).
    [7]
    Lid (12) according to claim 6, characterized in that the storage head (34) has a central recess (39) for mounting a coil spring (56) around the shaft pin (38) for spring biasing of the handle (32) in one of its two positions .
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    同族专利:
    公开号 | 公开日
    SE534580C2|2011-10-11|
    引用文献:
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    CN103057820A|2012-11-26|2013-04-24|贵州风雷航空军械有限责任公司|Sealing locking device of container door|
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    法律状态:
    2017-10-03| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    SE1000095A|SE534580C2|2010-02-02|2010-02-02|Pressure proof cover|SE1000095A| SE534580C2|2010-02-02|2010-02-02|Pressure proof cover|
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