• 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:
    abstract a bend restriction element (1) is modular for forming a tube segment all around a conduit through locked interlocking circumferential interconnection of multiple similar such elements. the tube segment is modular for forming an articulated tube around the conduit through locked interlocking longitudinal interconnection of multiple similar such tube segments. the locking of the circumferential interconnection of the elements is ensured both by the manner of interlocking of a tube segment concerned with a tube segment situated on one side thereof, and by the manner of interlocking of the tube segment concerned with a tube segment situated on the other side thereof. translation of the invention patent summary summary for: "curve restraint element to restrict the curvature range of a conduit" the present invention relates to a curve restraint element (1) which is modular to form a pipe segment in around a conduit through circumferential interlocking interlocking of multiple of said similar elements. the pipe segment is modular to form an articulated pipe around the conduit through longitudinal interlocking interlocking of multiples of said similar pipe segments. the locking of the circumferential interconnection of the elements is guaranteed not only by the way of interlocking a pipe segment in question with a pipe segment located on one side of it, but also by the way of interlocking the pipe segment in question with a segment of tube located on the other side of it.
    公开号:BR112014016943B1
    申请号:R112014016943-8
    申请日:2013-01-09
    公开日:2020-06-23
    发明作者:Arnoldus Van Belkon
    申请人:Lankhorst Engineered Products B.V.；
    IPC主号:
    专利说明:

    [001] The present invention relates to a curve restriction element, hereinafter also briefly referred to as "element", to restrict the curvature range of a conduit.
    [002] wherein the element is modular to form a pipe segment around the conduit through circumferential interlocking interlocking interconnection, that is, interconnection in circumferential direction of the conduit, of the element with at least one similar element,
    [003] wherein the pipe segment is modular to form a hinged pipe around the conduit through longitudinal interlocking interlocking, that is, interconnection in the longitudinal direction of the conduit, of the pipe segment with at least one said pipe segment similar,
    [004] in which tube segments of the articulated tube can articulate with respect to each other on lines that are transversal to the longitudinal direction of the conduit, and
    [005] in which the articulation band of said articulation of the pipe segments is restricted to said restriction of the channel curvature band.
    [006] Said articulated tube formed by said curved restraint element is also referred to as 'curved restraint element'. Said articulated tube, arranged around a collapsible conduit, such as, for example, a (underwater) pipe, cable, or the like, prevents folds, deformation, or other damage to the conduit. Curve restriction elements are used, for example, off the coast. In most cases, the curve restraint elements are only arranged around the portions of the duct that are most vulnerable in view of the above contingencies. Applied locally to the said portions around a conduit, a curves restriction element thus restricts the local curvature range of a conduit. The most vulnerable portions of the pipelines are often in the vicinity of the locations where the pipelines in question leave a rigid construction, such as an oil rig, and pass into the sea. In the aforementioned cases, the curved restraint element is often attached by one of its ends to the rigid construction.
    [007] In their use with long-lasting frequency, the curb restraining elements are in general continuously exposed to several large and strong variable loads, and to the action of various elements of nature. Ambient conditions are generally harsh and are determined, for example, by waves and currents of the sea, winds, operations to move the ducts, and unintentional collisions of the duct with external objects, such as ships or other work equipment. The loads strongly vary in magnitude and all possible directions act on the curved restraint element not only from the outside, but also from the inside, since the movable and flexing duct is located inside the curved restraint element. tube-shaped. It is of great importance for a curve restraint element to be reliably resistant to all such loads. If a curve restraint element fails, the duct no longer protected by the curve restraint element may bend, deform, or show damage. otherwise it usually has disastrous consequences for the fact that the ducts to be protected often perform essential functions. The loss of these functions can have profound financial consequences and / or damage to the company, economy or society and / or, for example, lead to damage to the environment. Also, repairing the ducts has profound financial consequences.
    [008] A curve restriction element according to the introductory portion of claim 1 is known from WO 2010 / 136801A1. Said known element is shown in Figures 1, 2, and 3 of WO 2010 / 136801A1, where two specimens of the known element are denoted with the respective reference numerals 3 and 5. In the passage of p. 10, line 27 to p. 11, line 22 of WO 2010 / 136801A1 is described as the curve restriction element is mounted in the field with said elements 3 and 5. First, two elements 5 are fastened together by means of nuts and screws threaded in openings 4 of the elements 5. The two elements 5 attached together then form a first pipe segment of the curve restraining element. Then, two elements 3 are arranged by their female portions 11 around the male portions 10 of the elements 5, whereby the two elements 3 are likewise fixed together by means of nuts and threaded screws in the openings 4 of the elements 3. The two elements 3 attached together then form a second pipe segment of the curve restraining element.
    [009] A drawback of said elements known from WO 2010 / 136801A1 is that adapting various nut / bolt combinations per pipe segment in the field is laborious, and often also problematic, for example, in harsh ambient conditions underwater. In addition, it is a drawback that the many nut / bolt combinations are responsible for a substantial part of the price of the curve restraint elements thus obtained. In fact, elements 3, 5 itself can be manufactured from a relatively inexpensive plastic material, for example, by molding or injection molding.
    [0010] Another curve restriction element according to the introductory portion of claim 1 is known from WO 01 / 24336A1. Said known element is, for example, shown in Figures 1 and 2 of WO 01 / 24336A1, where identical specimens of the known element are denoted with reference numerals 13 and 13 '. Two mutually fixed elements 13 and 13 'form a pipe segment 11 (right side in Figure 1 of WO 01 / 24336A1). Two other mutually fixed elements 13 and 13 'form the other pipe segment 11' (left side in the figure of WO 01 / 24336A1). Each pipe segment has a first end 16 and a second end 15, the first end 16 of the pipe segment in question engaging around the second end 15 of an adjacent pipe segment in a ball joint mode. From each pipe segment 11, 11 ', the two elements 13 and 13' are mutually retained at the first end 16 by means of shaft ends 18 and hook parts 20 of the two own elements 13 and 13 '(see, figure 2 WO 01 / 24336A1), while the two elements 13 and 13 'at the second end 15 are mutually held together by the first end 16 of the adjacent pipe segment. Thus, in figure 1 of WO 01 / 24336A1 the two elements 13 and 13 'at the second end 15 of the pipe segment 11 are mutually held together by the first end 16 of the adjacent pipe segment 11'. An advantage of the elements known from WO 01 / 24336A1 is that they hardly need any threaded screws or the like. With the elements known from WO 01 / 24336A1, threaded nuts / bolts need only be applied to the last pipe segment. a curve restriction element.To fit said threaded screws, elements 13, 13 'are provided with holes 26 (shown in figures 2 and 3 of WO 01 / 24336A1).
    [0011] A drawback of said elements known from WO 01 / 24336A1, however, is that not only the mutual fixation of elements of a pipe segment, but also the mutual fixation of pipe segments is vulnerable, as a result of that the reliability of the curve restraint element is no longer desired. If, for example, only one end of the shaft 18 or just a hook part 20 of only one element 13 or 13 'of a curved restraint element in operation breaks, the said element becomes loose from its companion in the pipe segment in question. The result is then a chain reaction with which the pipe segment after the pipe segment of the curve restriction element in question becomes loose and the curve restriction element is entirely lost. As a consequence, the duct no longer protected by the curve restraining element may bend, deform, or otherwise be damaged, which, as mentioned, generally has disastrous results. These adverse results can in principle be counterbalanced by making the mutual fixation of elements of a stronger and more durable pipe segment. This, however, increases the final cost of the elements. It can also be chosen if you use threaded nuts and bolts on all pipe segments of a curve restraint element, instead of only on the last pipe segment of a curve restraint element. However, as already mentioned above for the elements known from WO 2010 / 136801A1, the many threaded nuts and screws increase the cost of the curve restraining element, and the adaptation of the many threaded nuts and screws in the field is laborious and problematic frequency.
    [0012] Yet another curvature restraint element of the type as initially indicated above is known in US 2010 / 228295A1. This known element is shown in Figs. 5A, 5B of US 2010 / 228295A1.
    [0013] It is an object of the present invention to provide a curve restriction element with which an articulated tube to restrict the curvature range of a conduit can be formed, whose articulated tube is reliable, easy to install, and has a relationship between quality and cost.
    [0014] For this purpose, according to independent claim 1 in annex, a curve restriction element of the type indicated above above is characterized by the fact that the element is configured so that the locking of the circumferential interconnection of the hair elements at least one pipe segment in question from the articulated pipe is guaranteed not only by the interlocking method of the longitudinal interconnection of the pipe segment in question with a pipe segment of the articulated pipe located in the longitudinal direction on one side of it, but also by the interlocking of the longitudinal interconnection of the pipe segment in question with a pipe segment of the articulated pipe located in the longitudinal direction on the other side of it, in which the respective interlocking modes are also part, respectively, of ensuring the locking of the circumferential interconnection of the elements of the pipe segment located on one side, and ensure the locking of the circumferential interconnection of the ele tube segment located on the other side.
    [0015] In an articulated tube (curve restriction element) thus formed with the said elements according to the present invention, the elements of a pipe segment in question are held together in the circumferential direction by the help of interlocking elements similar to from each of the two adjacent pipe segments of the pipe segment in question, while the elements of the pipe segment in question also contribute to hold together in circumferential direction the elements of each of the two adjacent pipe segments. In this way, the curve restraining element formed by the elements is characterized by multiple interconnections between the elements with a very strong relative connection between the elements of the curve restraint element. The various strongly variable and large loads mentioned above, from inside and from outside, to which the curved curbing element with its articulated pipe segments are exposed in operation, are very well distributed among the different elements and by element very well spread across the different parts of the element.
    [0016] All of this makes the articulated tube extremely reliable as a curving restriction element. Due to the strong relative connection between the elements and due to the good load distribution, according to the present invention a more favorable relationship between quality and cost of a curve restriction element is possible than with the known element of restriction of curves. curves. What is more, according to the present invention, in principle, no threaded bolts and nuts or (hooks) special parts of the elements are necessary to fasten the elements of a pipe segment in question, except, possibly, only in the last pipe segment of the curve restriction element. Not only does this have a favorable influence on the cost of the curve restraint element, but it also makes installation of the curve restraint element easier.
    [0017] In principle, the element can be manufactured from various materials. Preferably, the element is made from plastic, for example, with the help of molding or injection molding in a mold. A suitable material for the manufacture of the element is, for example, a Polyurethane.
    [0018] Specific embodiments of the present invention are listed in the dependent claims.
    [0019] In a preferred embodiment of the present invention, the element is configured so that
    [0020] the pipe segment in question, the pipe segment located on one side and the pipe segment located on the other side each of which comprises a first mutually similar portion, a second mutually similar portion, and a third portion mutually similar,
    [0021] the way of interlocking the longitudinal interconnection of the pipe segment in question with the pipe segment located on one side is carried out in which at least the first portion of the pipe segment in question is enveloped around by the pipe segment located in one side, and
    [0022] the way of interlocking the longitudinal interconnection of the pipe segment in question with the pipe segment located on the other side is carried out in which at least the second portion of the pipe segment in question is wrapped around by the third portion of the pipe segment tube located on the other side.
    [0023] With said envelopes of the first portion and the second portion of the pipe segment in question, the respective ways of interlocking are carried out in a reliable manner.
    [0024] Preferably, the element is configured so that
    [0025] the way of interlocking the longitudinal interconnection of the pipe segment in question with the pipe segment located on one side is carried out in which the second portion of the pipe segment situated on one side envelops the first portion of the pipe segment in question around and is also wrapped around by the third portion of the pipe segment in question, and
    [0026] the way of interlocking the longitudinal interconnection of the pipe segment in question with the pipe segment located on the other side is carried out in which the second portion of the pipe segment in question envelops the first portion of the pipe segment located on the other side around and is also wrapped around by the third portion of the pipe segment located on the other side.
    [0027] Due to the aforementioned ways of interlocking, the easy adaptation of the articulated tube is additionally promoted. In fact, when adapting an element of a pipe segment that has yet to be formed with it, the element, by its corresponding portion with the second portion of the pipe segment to be formed with it, can easily and reliably be brought and positioned between the first portion and the third portion of a pipe segment already formed around the conduit.
    [0028] In a further preferred embodiment of the present invention, the element is configured so that the longitudinal interlocking interlocking of the pipe segments is achieved by interlocking at least radially (i.e., in the radial direction), seen with respect to the conduit , the recessed portions and the protruding portions, respectively, of two respective interconnected tube segments.
    [0029] In a further preferred embodiment of the present invention, the element is configured so that:
    [0030] elements that join one another in the longitudinal direction of two mutually adjacent tube segments of the articulated tube are not in line with each other in the longitudinal direction, in which they are situated stepped with respect to each other in the circumferential direction , and
    [0031] the staggered situation is maintained in that the element comprises means of blocking that at least partially block the mutual relative rotation in the circumferential direction of the elements that join one another.
    [0032] The referred staggered situation of the elements promotes a strong relative connection between the elements and even more good load distribution. In this way, the relative connection is even stronger than in the hypothetical case where an individual element of an embedded articulated tube is missing, the function of the articulated tube remains intact due to the mutual interlocking of the elements around the place of the missing element.
    [0033] In the following, the present invention is further elucidated with reference to the schematic drawings in the attached figures.
    [0034] Figure 1 shows in perspective an example of an embodiment of a curve restraining element according to the present invention.
    [0035] Figure 2 shows the element of figure 1 in another perspective view.
    [0036] Figure 3 shows in perspective two specimens of the element of figure 1 in a way in which they can be longitudinally interconnected for use in an articulated tube.
    [0037] Figure 4 shows a central longitudinal section (partially in transparent view) through a longitudinal portion of an articulated tube formed with several specimens of the element of figure 1 around a conduit, with the conduit in the longitudinal portion shown being in a straight, that is, not folded condition. It is observed that figure 4 is a view taken along the line IV-IV denoted by arrows in figures 6 and 7.
    [0038] Figure 5 shows the construction of figure 4 once again, but in a condition in which the conduit in the longitudinal portion shown is in a folded condition.
    [0039] Figure 6 shows a cross-sectional view (partially in transparent view) taken along the line VI-VI denoted by arrows in figure4. It is observed that figure 6 is also a view taken along the line VI-VI denoted by arrows in figure 8.
    [0040] Figure 7 shows a cross-sectional view (partially in transparent view) taken along line VII-VII denoted by arrows in Figure 4.
    [0041] Figure 8 shows the part of a longitudinal section view (partially in transparent view) along line VIIl-VIII denoted by arrows in figure 6.
    [0042] Figures 1 to 8 show a curve restriction element 1 according to the present invention. In figures 3 to 8, in addition to element 1, additional identical specimens 2 to 7 of element 1 are shown. In figures 4 to 7, in addition, a collapsible conduit 10, such as, for example, a (under water) pipe, cable, or the like, is shown. In figures 4 to 6, the longitudinal direction L of the conduit 10, the circumferential direction C of the conduit 10, and the radial direction R, seen in relation to the conduit 10, are denoted.
    [0043] Arranged around the illustrated portion of the conduit 10 is an articulated tube 100. The articulated tube comprises the tube segments denoted in figure 4 with reference numerals 12, 14, 16, and 18, which are interconnected together in the longitudinal direction L in a mutually locked interlock mode.
    [0044] Each of the pipe segments 12, 14, 16, and 18 is formed by different specimens of element 1 being interconnected in the circumferential direction C in a mutually locked interlock mode. The pipe segment 12 is formed by elements 1 and 2, the pipe segment 14 by elements 3 and 4, and the pipe segment 16 by elements 5 and 6.
    [0045] The tube segments 12, 14, 16, and 18 of the tube 100 can articulate with respect to each other on lines that are transversal to the longitudinal direction L of the conduit, with which the articulation range of the articulation of the segments of tube 12, 14, 16, and 18 is restricted to restrict the curvature range of conduit 10. Thus, in the illustrated example of Figures 4 and 5, the articulated conditions of the tube segments 12, 14, 16, and 18 shown in the figure 5 corresponding to the folded condition of conduit 10 shown in figure 5, were obtained, starting from the articulation conditions of the pipe segments 12, 14, 16, and 18 corresponding to the straight condition of conduit 10 shown in figure 4, by articulate the pipe segments 12, 14, 16, and 18 with respect to each other in each case in the same direction of articulation on lines that are perpendicular to the central plane of the longitudinal section. The articulated conditions of the pipe segments 12, 14, 16, and 18 shown in figure 5 here correspond to the upper limit of the restricted curvature range of the conduit 10 in the mentioned articulation direction.
    [0046] In the example shown, each of the elements 1 to 7 is configured so that the locking of the circumferential interconnection of the two elements in question of the pipe segment in question of the tube 100 is guaranteed not only by the interlocking mode of the longitudinal interconnection of the pipe segment in question with a pipe segment 16 of the articulated pipe located in the longitudinal direction L on one side of it, but also by the interlocking method of the longitudinal interconnection of the pipe segment in question with a pipe segment of the pipe 100 located at longitudinal direction L on the other side of the same, while the respective ways of interlocking are also part, respectively, of ensuring the locking of the circumferential interconnection of the two elements of the pipe segment located on one side, and guaranteeing the locking of the interconnection circumferential of the two elements of the pipe segment located on the other side.
    [0047] Thus, this is valid for, among others, the elements of the pipe segment in question 12, the pipe segment 16 located on one side of it, and the pipe segment 14 located on the other side of it. The locking of the circumferential interconnection of the two elements 1 and 2 of the pipe segment 12 is guaranteed not only by the interlocking mode of the longitudinal interconnection of the pipe segment 12 with the pipe segment 16, but also by the interlocking mode of the longitudinal interconnection of the pipe segment of pipe 12 with pipe segment 14. Additionally, the respective ways of interlocking are part of, respectively, ensuring the locking of the circumferential interconnection of the two elements 5 and 6 of the pipe segment 16, and guaranteeing the locking of the circumferential interconnection of the two elements 3 and 4 of the pipe segment 14.
    [0048] More particularly, in the example shown, each of the elements 1 to 7 is configured so that the pipe segment in question, the pipe segment located on one side, and the pipe segment located on the other side each which comprises a first mutually similar portion, a second mutually similar portion, and a third mutually similar portion, that the way of interlocking the longitudinal interconnection of the pipe segment in question with the pipe segment situated on one side is carried out in which at least the first portion of the pipe segment in question is wrapped around by the pipe segment located on one side, and that the way of interlocking the longitudinal interconnection of the pipe segment in question with the pipe segment located on the other side is carried out in which at least the second portion of the pipe segment in question is wrapped around the third portion of the pipe segment located on the other side.
    [0049] This is also true for, among others, the elements of the pipe segment in question 12, the pipe segment 16 located on one side of it, and the pipe segment 14 located on the other side of it. Said respective tube segments 12, 16, and 14 each of which comprises said first portion, respectively denoted with reference numerals 31, 41, and 51, said second portion, respectively denoted with reference numerals 32, 42, and 52, and said third portion, respectively denoted with reference numerals 33, 43, and 53. in figure 4 it can be seen, for example, that the first portion 31 of the pipe segment 12 is enveloped around the pipe segment 16, and that at least the second portion 32 of the pipe segment 12 is enveloped around by the third portion 53 of the pipe segment 14. Additionally, it can be seen in figure 4, for example, that the first portion 41 of the tube segment 16 is enveloped around by tube segment 18, and that at least the second portion 42 of tube segment 16 is enveloped around by third portion 33 of tube segment 12.
    [0050] More particularly, in the example shown, each of the elements 1 to 7 is configured so that the way of interlocking the longitudinal interconnection of the pipe segment in question with the pipe segment located on one side is carried out in which the second portion of the pipe segment situated on one side envelopes the first portion of the pipe segment in question around and is also enveloped around it by the third portion of the pipe segment in question, and that the way of interlocking the longitudinal connection of the segment of the pipe in question with the pipe segment located on the other side is carried out in which the second portion of the pipe segment in question envelops the first portion of the pipe segment situated on the other side around and is also enveloped around by the third portion of the pipe segment located on the other side.
    [0051] This is also true for, among others, the elements of the pipe segment in question 12, the pipe segment 16 located on one side of it, and the pipe segment 14 located on the other side of it. The way of interlocking the longitudinal interconnection of the pipe segment 12 with the pipe segment 16 is carried out in which the second portion 42 of the pipe segment 16 envelops the first portion 31 of the pipe segment 12 around and is also enveloped around by third portion 33 of the pipe segment 12, and the way of interlocking the longitudinal interconnection of the pipe segment 12 with the pipe segment 14 is carried out in which the second portion 32 of the pipe segment 12 envelops the first portion 51 of the pipe segment 14 around and is also enveloped around by the third portion 53 of the pipe segment 14.
    [0052] In the example shown, each of the elements 1 to 7 is configured so that the longitudinal interlocking interlocking of the pipe segments is carried out by interlocking the portions at least radially recessed (that is, in the radial direction R) and portions protruding, respectively, from two respective interconnected pipe segments.
    [0053] This is also true for, among others, the elements of the pipe segment in question 12, the pipe segment 16 located on one side of it, and the pipe segment 14 located on the other side of it. In figure 4, it can be seen, for example, that the longitudinal interlocking interconnection of the pipe segments 12 and 14 is performed by interlocking the portions 35 of the pipe segment 12 receding in the radial direction R and the portions 54 of the pipe segment 14 project in the radial direction R. Likewise, it can be seen in figure 4, for example, that the longitudinal interlocking interconnection of the pipe segments 16 and 12 is performed by interlocking portions 45 of the pipe segment 16 receding in the radial direction R with portions 34 of the pipe segment 12 project in the radial direction R.
    [0054] In the example shown, each of elements 1 to 7 is configured so that elements that join each other in the longitudinal direction L of two mutually adjacent tube segments of the articulated tube are not in line with each other in the direction longitudinal L in which they are located stepped with respect to each other in the circumferential direction C, and that the stepped situation is maintained in that the element comprises locking means that at least partially block the mutual relative rotation in the circumferential direction C of the elements that unite with each other.
    [0055] Said locking means to maintain said situation staggered of the elements can be carried out in several ways. For example, they can be carried out in which the element comprises grooves and ribs that extend at least in the longitudinal direction L, which are so configured that the grooves of an element cooperatively interlock with the ribs of the element that join them in the longitudinal direction L.
    [0056] As said locking means are performed in the example shown, it appears from figures 3, 4, 6, and 8, in which the situation staggered, among others, of elements 1 and 3 is shown. The means for blocking element 1 comprise the slot, denoted with reference number 37 in figures 1, 6, and 8, in the part of element 1 that corresponds with the second portion 32 of the pipe segment 12, as well as the two walls transverse, denoted with reference numerals 36 in figure 1, between the wall of element 1 that corresponds with the first portion 31 of the pipe segment 12 and the wall of element 1 that corresponds with the third portion 33 of the pipe segment 12. For element 3, the transverse walls, similar to the transverse walls 36, are denoted with reference numerals 56 in figures 3, 6, and 8. For element 4, the transverse walls, similar to the transverse walls 36, are denoted with numerals of reference 76 in figures 6 and 8. In figures 6 and 8 it can be seen that a cross wall 56 of element 3 along with a cross wall 76 of element 4 extends into slot 37 of element 1. As a result, the relative rotation in circunfer direction Initial C of elements 1 and 3 that join together in the longitudinal direction C, as well as of elements 1 and 4 that join each other in the longitudinal direction L, is at least partially blocked.
    [0057] With reference to figure 1, the following optional aspects of element 1 are elucidated here. In figure 1 it can be seen that the element 1, on its intended side, within a tube segment of the articulated tube, touching against a similar side of another said element, is provided with recesses 80 and 82, as well as with protrusions 81 and 83. Said recesses and protuberances facilitate the assembly of the articulated tube in which protrusions 81 and 83 of element 1 can be positioned in the recesses, similar to recesses 80 and 82, of the other element of the pipe segment in question. In the example shown, the recess 80 and the protrusion 81 are provided with passages. If desired, the threaded screws can be inserted into said passages, so that element 1, with said threaded screws and associated nuts, can be firmly attached to the other element of the pipe segment in question. Said fixing of the threaded screw can, for example, be applied only with the last pipe segment of a curve restricting element.
    [0058] It is noted that the above mentioned examples of modalities do not limit the present invention and that within the scope of the appended claims several alternatives are possible.
    [0059] Thus, for example, several variations are possible in the shapes, dimensions and materials of the element according to the present invention.
    [0060] With the element according to the present invention shown in the figures, a pipe segment is formed through the circumferential interconnection of two of said elements. Instead, an alternative curve restraint element according to the present invention can also be modular to form a pipe segment by circumferential interconnection of three or more of said alternative elements. The greater the number of elements per pipe segment of an articulated pipe, the stronger the connection between the pipe elements in the hypothetical case where the articulated pipe is loose on an individual element as a result of damage, and the better the function relative to the restriction of the articulation range of the articulation of the pipe segments remains intact despite the individual element lost.
    [0061] In the example shown in the figures, an articulated tube is formed through interconnections of mutually identical specimens of elements according to the present invention. Instead, however, it is also possible that an articulated tube is formed by interconnections of specimens of mutually different elements (in shape) according to the present invention. In addition, it is possible that at least one element according to the present invention is interconnected together with at least one element of a different type, not according to the present invention, to form an articulated tube.
    [0062] Said and similar alternatives are understood to fall within the scope of the present invention as defined in the appended claims.
    权利要求:
    Claims (4)
    [0001]
    Curve restriction element to restrict the curvature range of a conduit (10), wherein the element (1) is modular to form a pipe segment (12) around the conduit through circumferential interlocking interlocking interlocking, i.e. , interconnection in the circumferential direction (C) of the conduit, of the element with at least one similar element (2), wherein said pipe segment (12) is modular to form an articulated pipe (100) around the conduit through longitudinal interlocking interlock, that is, interconnection in the longitudinal direction (L) of the conduit, of said pipe segment with at least one said similar pipe segment (14, 16, 18), in which pipe segments of the articulated pipe can articulate with respect to each other on lines that are transverse in relation to the said longitudinal direction (L) of the conduit, and in which the articulation range of said articulation of the pipe segments is restricted to said band restriction the curvature of the conduit, in which the element (1) is configured so that said locking of said circumferential interconnection of the elements (1, 2) of at least one pipe segment in question (12) of the articulated pipe (100) is guaranteed not only by the interlocking method of the longitudinal interconnection of the pipe segment in question (12) with a pipe segment (16) of the articulated pipe located in the longitudinal direction (L) on one side of it, but also by the interlocking mode the longitudinal interconnection of the pipe segment in question (12) with a pipe segment (14) of the articulated pipe located in the longitudinal direction on the other side of it, in which the respective interlocking modes are also part of, respectively, to guarantee said locking of said circumferential interconnection of elements (5, 6) of the pipe segment (16) located on said one side, and to guarantee said locking of said circumferential interconnection of elements (3, 4) the pipe segment (14) located on said other side; characterized by the fact that the element (1) is configured so that the elements (1, 3) that join together in the longitudinal direction (L) of two mutually adjacent segments (12, 14) of the articulated tube (100) do not are in line with each other in said longitudinal direction, in which they are situated stepped with respect to each other in said circumferential direction (C), and said stepped situation is maintained in which element (1) comprises means of blocking (36, 37) which at least partially block the relative relative rotation in said circumferential direction (C) of said elements that join one another.
    [0002]
    Curve restriction element according to claim 1, characterized in that the element (1) is configured so that the pipe segment in question (12), the pipe segment (16) located on said one side , and the tube segment (14) located on said other side each of which comprises a first mutually similar portion (31; 41; 51), a second mutually similar portion (32; 42; 52), and a third portion mutually similar (33; 43; 53), said method of interlocking the longitudinal interconnection of the pipe segment in question (12) with the pipe segment (16) located on said one side is realized in which at least the first portion (31 ) of the pipe segment in question (12) is enveloped around it by the pipe segment (16) located on said one side, and said way of interlocking the longitudinal interconnection of the pipe segment in question (12) with the segment tube (14) located on said other side is realized in which at least the second po section (32) of the pipe segment in question (12) is aged around by the third portion (53) of the pipe segment (14) located on said other side.
    [0003]
    Curve restriction element according to claim 2, characterized in that the element (1) is configured in such a way that said interlocking mode of the longitudinal interconnection of the pipe segment in question (12) with the pipe segment (16) located on said one side is realized in which the second portion (42) of the pipe segment (16) situated on said side envelopes the first portion (31) of the pipe segment in question (12) around and also is enveloped around the third portion (33) of the pipe segment in question (12), and said mode of interlocking the longitudinal interconnection of the pipe segment in question (12) with the pipe segment (14) located in said other side is realized in which the second portion (32) of the pipe segment in question (12) envelops the first portion (51) of the pipe segment (14) located on said other side around and is also enveloped around by the third portion (53) of the pipe segment (14) located in said other side.
    [0004]
    Curve restriction element according to any one of the preceding claims, characterized in that the element (1) is configured in such a way that said longitudinal interlocking interconnection of the pipe segments (12, 14) is performed by interlocking at least radially (that is, in the radial direction R), seen with respect to the conduit, indented portions (35) and projecting portions (54), respectively, of two respective interconnected pipe segments (12, 14)
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    同族专利:
    公开号 | 公开日
    AU2013208361B2|2017-01-05|
    US20140377010A1|2014-12-25|
    SG11201404004TA|2014-10-30|
    KR20140123948A|2014-10-23|
    EP2802800A1|2014-11-19|
    BR112014016943A8|2017-07-04|
    NL2008092C2|2013-07-15|
    BR112014016943A2|2017-06-13|
    US10443762B2|2019-10-15|
    AU2013208361A1|2014-08-07|
    CA2863212A1|2013-07-18|
    WO2013105853A1|2013-07-18|
    EP2802800B1|2016-07-20|
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    法律状态:
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-09-03| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-04-07| B09A| Decision: intention to grant|
    2020-06-23| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 09/01/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    NL2008092|2012-01-10|
    NL2008092A|NL2008092C2|2012-01-10|2012-01-10|BENDING RESTRICTION ELEMENT FOR LIMITING THE BENDING RANGE OF A PIPE.|
    PCT/NL2013/050010|WO2013105853A1|2012-01-10|2013-01-09|Bend restriction element for restricting the bending range of a conduit|
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