A chain assembly, a chain link and a drag chain
By employing a chain plate assembly design with a first side plate, a second side plate, and an elastic element in the cable chain, the collision noise between the chain plates is reduced by utilizing the compression and restoring force of the elastic element, thus solving the noise pollution problem of traditional cable chains and improving the stability and durability of the cable chain.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DONGGUAN YIHEDA AUTOMATION CO LTD
- Filing Date
- 2023-09-15
- Publication Date
- 2026-07-31
AI Technical Summary
In traditional cable carriers, the chain plates are prone to collisions, which can generate noise and pollute the working environment.
The chain plate assembly design employs a first side plate, a second side plate, and an elastic element. The compression and restoring force of the elastic element reduces collisions between chain plates, and the elastic restoring force of the elastic element keeps adjacent chain plates apart, thereby reducing collision noise.
It effectively reduces the collision noise between chain plates, improves the stability and durability of the cable chain, and reduces the difficulty of installation.
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Figure CN117307665B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of chain technology, and particularly to a chain plate assembly, chain link, and drag chain. Background Technology
[0002] Cable drag chains, also known as cable protection drag chains, are devices used to secure cables, wires, air hoses, and hydraulic hoses to facilitate their rotation and movement.
[0003] Conventional cable carriers are usually composed of multiple chain plates and upper and lower cover plates connected together. Traditional chain plates are usually interlocked by insert-type spring clips, which is relatively easy to install. However, during the dragging of the cable carrier, the chain plates are prone to collisions, which can generate a lot of noise and pollute the working environment. Summary of the Invention
[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a chain plate assembly that can reduce the degree of collision between the second side plates of two adjacent chain plates, thereby reducing the noise generated by the collision between two adjacent chain plates.
[0005] The present invention also proposes a chain link having the above-described chain plate assembly.
[0006] The present invention also proposes a drag chain having the above-mentioned links.
[0007] According to a first aspect of the present invention, a chain plate assembly includes: a plurality of chain plates; each chain plate includes a first side plate, a second side plate, and an elastic member, the two ends of the elastic member being connected to the first side plate and the second side plate, respectively; the plurality of chain plates are arranged sequentially, wherein in two adjacent chain plates, the first side plate of one chain plate is connected to the second side plate of the other chain plate, and the second side plates of two adjacent chain plates are spaced apart; bending the chain plate can bring two adjacent second side plates closer together and can compress the elastic member.
[0008] The chain plate assembly according to the present invention has at least the following beneficial effects: multiple chain plates are arranged sequentially, and during the bending process of the chain plates, the first and second side plates of the chain plates can rotate and move relative to the elastic member, so that the elastic member can be bent and in a compressed state. Since the first side plate of one chain plate is connected to the second side plate of the other chain plate in two adjacent chain plates, the second side plates of the two adjacent chain plates are brought closer to each other. The elastic member in the compressed state can give the chain plate an elastic restoring force to return to the initial state, so that the elastic member can give the second side plates of the two adjacent chain plates an elastic tendency to move away from each other, thereby reducing the degree of collision between the second side plates of the two adjacent chain plates and reducing the sound generated by the collision between the two adjacent chain plates.
[0009] According to some embodiments of the present invention, the elastic element is bent, one end of the elastic element is connected to the side of the first side plate near the second side plate, and the other end of the elastic element is connected to the side of the second side plate near the first side plate.
[0010] According to some embodiments of the present invention, the elastic element is S-shaped.
[0011] According to a second aspect embodiment of the present invention, a link includes a chain plate assembly as described in the first aspect embodiment of the present invention; two chain plate assemblies are provided and spaced apart, and the chain plates of the two chain plate assemblies are arranged opposite to each other; multiple connecting rods are provided; the two ends of the connecting rods are respectively connected to the two opposite chain plates.
[0012] The chain link according to the embodiments of the present invention has at least the following beneficial effects: by employing the above-described chain plate assembly, multiple chain plates are arranged sequentially. During the bending process of the chain plate, the first and second side plates of the chain plate can rotate and move relative to the elastic member, allowing the elastic member to bend and be in a compressed state. Since the first side plate of one chain plate is connected to the second side plate of the other chain plate in two adjacent chain plates, the second side plates of the two adjacent chain plates are brought closer to each other. The elastic member in the compressed state can provide the chain plate with an elastic restoring force to return to its initial state, so that the elastic member can provide the second side plates of the two adjacent chain plates with an elastic tendency to move away from each other, thereby reducing the degree of collision between the second side plates of the two adjacent chain plates and reducing the sound generated by the collision between the two adjacent chain plates.
[0013] According to some embodiments of the present invention, a first locking block and a first limiting groove are provided on the first side plate, and in two adjacent chain plates, the first locking block of one chain plate is movably disposed in the first limiting groove of the other chain plate.
[0014] According to some embodiments of the present invention, a second locking block and a second limiting groove are provided on the second side plate, and in two adjacent chain plates, the second locking block of one chain plate is movably disposed in the second limiting groove of the other chain plate.
[0015] According to some embodiments of the present invention, a third locking block is provided on the first side plate, and a third limiting groove is provided on the second side plate. In two adjacent chain plates, the third locking block of one chain plate is movably disposed in the third limiting groove of the other chain plate.
[0016] According to some embodiments of the present invention, the third limiting groove is a through groove, the third locking block includes two elastic pillars, the two elastic pillars are spaced apart, the elastic pillars abut against the inner wall of the third limiting groove, one end of the elastic pillar is connected to the first side plate, and the two elastic pillars are provided with limiting bosses on their sides, the limiting bosses being located on the side of one elastic pillar away from the other elastic pillar.
[0017] According to some embodiments of the present invention, both ends of the connecting rod are provided with sockets, and the chain plate is provided with a plug, which is disposed in the socket.
[0018] The cable chain according to a second aspect embodiment of the present invention includes the chain link described in the second aspect embodiment of the present invention application.
[0019] The cable chain according to embodiments of the present invention has at least the following beneficial effects: by employing the above-described chain plate assembly, multiple chain plates are arranged sequentially. During the bending process of the chain plates, the first and second side plates of the chain plates can rotate and move relative to the elastic member, allowing the elastic member to bend and be in a compressed state. Since the first side plate of one chain plate is connected to the second side plate of the other chain plate in two adjacent chain plates, the second side plates of the two adjacent chain plates are brought closer to each other. The elastic member in the compressed state can provide the chain plate with an elastic restoring force to return to its initial state, so that the elastic member can provide the second side plates of the two adjacent chain plates with an elastic tendency to move away from each other, thereby reducing the degree of collision between the second side plates of the two adjacent chain plates and reducing the noise generated by the collision between the two adjacent chain plates.
[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0021] The above or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0022] Figure 1 This is a schematic diagram of the cable chain structure of the present invention;
[0023] Figure 2 This is a schematic diagram of the structure of the two chain plates of the drag chain of the present invention;
[0024] Figure 3 This is a structural schematic diagram of the two chain plates of the drag chain of the present invention from another perspective;
[0025] Figure 4 This is a cross-sectional view of the two chain plates of the cable chain of the present invention.
[0026] Figure label:
[0027] Chain plate assembly 10; chain plate 100; first side plate 110; first locking block 111; first limiting groove 112; third locking block 113; elastic post 114; limiting boss 115; second side plate 120; second locking block 121; second limiting groove 122; third limiting groove 123; groove 124; elastic element 130; first bending part 131; first clearance position 1311; second bending part 132; second clearance position 1321; insert block 140; connecting rod 200; process hole 210. Detailed Implementation
[0028] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0029] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, left, right, front, back, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.
[0030] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.
[0031] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.
[0032] The following is for reference. Figures 1 to 4 The chain plate assembly, chain link, and drag chain according to embodiments of the present invention are described.
[0033] According to an embodiment of the present invention, a chain plate assembly includes chain plates 100; multiple chain plates are provided; each chain plate 100 includes a first side plate 110, a second side plate 120, and an elastic member 130, with both ends of the elastic member 130 connected to the first side plate 110 and the second side plate 120 respectively; the multiple chain plates 100 are arranged sequentially, and in two adjacent chain plates 100, the first side plate 110 of one chain plate 100 is connected to the second side plate 120 of the other chain plate 100, and the second side plates 120 of two adjacent chain plates 100 are spaced apart; bending the chain plate 100 can bring two adjacent second side plates 120 closer to each other, and can put the elastic member 130 in a compressed state.
[0034] Multiple chain plates 100 are arranged sequentially. During the bending process of the chain plates 100, the first side plate 110 and the second side plate 120 of the chain plates 100 can rotate and move relative to the elastic element, so that the elastic element 130 can be bent and in a compressed state. Since the first side plate 110 of one chain plate 100 is connected to the second side plate 120 of the other chain plate 100, the second side plates 120 of the two adjacent chain plates 100 are brought closer to each other. The elastic element 130 in the compressed state can give the chain plates 100 an elastic restoring force to return to the initial state, so that the elastic element 130 can give the second side plates 120 of the two adjacent chain plates 100 an elastic tendency to move away from each other, thereby reducing the degree of collision between the second side plates 120 of the two adjacent chain plates 100 and reducing the sound generated by the collision between the two adjacent chain plates 100.
[0035] Specifically, refer to Figure 2 The elastic member 130 includes an S-shaped structure with a first curved portion 131 and a second curved portion 132 connected to each other. The first curved portion 131 and the second curved portion 132 are generally C-shaped, but their bending directions are opposite. Furthermore, the side of the first curved portion 131 away from the second curved portion 132 is connected to the first side plate 110, and the side of the second curved portion 132 away from the first curved portion 131 is connected to the second side plate 120. A first clearance 1311 is formed inside the first curved portion 131, and a second clearance 1321 is formed inside the second curved portion 132. It should be understood that when the elastic member 130 is in a compressed state, the first curved portion 131 will contract towards its first clearance 1311, and similarly, the second curved portion 132 will contract towards its second clearance 1321, so that the elastic member 130 is in a contracted state.
[0036] Furthermore, the elastic element 130, the first side plate 110, and the second side plate 120 are integrally formed, which can reduce production costs and has higher resistance and durability compared to a split design.
[0037] Reference Figure 1 and Figure 2It is understandable that the elastic element 130 is bent, with one end of the elastic element 130 connected to the side of the first side plate 110 near the second side plate 120, and the other end of the elastic element 130 connected to the side of the second side plate 120 near the first side plate 110.
[0038] The elastic element 130 is disposed between the first side plate 110 and the second side plate 120. After one chain plate 100 moves, the second side plate 120 of the adjacent chain plate 100 abuts against the first side plate 110 of the chain plate 100. As the two chain plates 100 move closer to each other, the first side plates 110 and the second side plates 120 of the two chain plates 100 move closer to each other, which can compress the elastic element 130 between the first side plate 110 and the second side plate 120 to achieve a buffering effect. As the two chain plates 100 move away from each other, the first side plates 110 and the second side plates 120 of the two chain plates 100 move away from each other. The elastic element 130 can push the first side plate 110 of one of the two adjacent chain plates 100 to abut against the second side plate 120 of the other chain plate 100, so that the two chain plates 100 can always maintain an abutment state through the first side plate 110 and the second side plate 120, reducing the degree of collision between the first side plate 110 and the second side plate 120.
[0039] Specifically, the elastic element 130 is S-shaped so that when the first side plate 110 rotates relative to the second side plate 120, it can also compress the elastic element 130, thereby improving adaptability.
[0040] Reference Figures 1 to 4 The chain link of the second aspect embodiment of this application includes the chain plate assembly and a plurality of connecting rods 200 of the first aspect embodiment described above; there are two chain plate assemblies 10 arranged at intervals, the chain plates 100 of the two chain plate assemblies 10 are arranged opposite to each other, and the two ends of the connecting rods 200 are respectively connected to the two opposite chain plates 100.
[0041] By employing the chain plate assembly of the first aspect embodiment of the invention described above, multiple chain plates 100 are arranged sequentially. During the bending process of the chain plate 100, the first side plate 110 and the second side plate 120 of the chain plate 100 can rotate and move relative to the elastic member, so that the elastic member 130 can be bent and in a compressed state. Since the first side plate 110 of one chain plate 100 is connected to the second side plate 120 of the other chain plate 100, the second side plates 120 of the two adjacent chain plates 100 are brought closer to each other. The elastic member 130 in the compressed state can give the chain plate 100 an elastic restoring force to return to the initial state, so that the elastic member 130 can give the second side plates 120 of the two adjacent chain plates 100 an elastic tendency to move away from each other, thereby reducing the degree of collision between the second side plates 120 of the two adjacent chain plates 100 and reducing the sound generated by the collision between the two adjacent chain plates 100.
[0042] Specifically, by setting a connecting rod 200, the chain plates 100 of two chain plate assemblies 10 can be connected to improve the stability of the cable chain; specifically, the two ends of the connecting rod 200 can be connected to the first side plates 110 of the two chain plates 100 respectively, and the two ends of the connecting rod 200 can be connected to the second side plates 120 of the two chain plates 100 respectively, so as to further improve the stability of the chain plates 100 through the connecting rod 200; wherein, multiple connecting rods 200 are provided, and the arrangement direction of the multiple connecting rods 200 is the same as the arrangement direction of the chain plates 100.
[0043] Reference Figures 2 to 4 It is understood that the first side plate 110 is provided with a first locking block 111 and a first limiting groove 112. In two adjacent chain plates 100, the first locking block 111 of one chain plate 100 is movably disposed in the first limiting groove 112 of the other chain plate 100.
[0044] The first side plates 110 of two adjacent chain plates 100 are connected to each other by a first locking block 111 and a first locking groove, so as to limit the position between the first side plates 110 of the two chain plates 100. Specifically, when the cable chain is rotated, the position of the first side plates 110 of the two adjacent chain plates 100 changes around the rotation axis. The first locking block 111 is movably disposed in the first limiting groove 112. Rotating the first side plate 110 can move the first locking block 111 so that the first locking block 111 and the inner wall of the first limiting groove 112 abut against each other, thereby limiting the position between the first side plates 110 of the two adjacent chain plates 100, controlling the rotation angle of the cable chain, preventing the cable chain from bending in the opposite direction and causing disengagement, and improving the load resistance of the cable chain.
[0045] Reference Figures 2 to 4It is understood that the second side plate 120 is provided with a second locking block 121 and a second limiting groove 122. In two adjacent chain plates 100, the second locking block 121 of one chain plate 100 is movably disposed in the second limiting groove 122 of the other chain plate 100.
[0046] The second side plates 120 of two adjacent chain plates 100 are connected to each other by a second locking block 121 and a second locking groove, so as to limit the position between the second side plates 120 of the two chain plates 100. Specifically, when the cable chain is rotated, the position of the second side plates 120 of the two adjacent chain plates 100 changes around the rotation axis. The second locking block 121 is movably disposed in the second limiting groove 122. Rotating the second side plate 120 can move the second locking block 121 so that the second locking block 121 and the inner wall of the second limiting groove 122 abut against each other, thereby limiting the position between the second side plates 120 of the two adjacent chain plates 100, controlling the rotation angle of the cable chain, preventing the cable chain from bending in the opposite direction and causing disengagement, and improving the load resistance of the cable chain.
[0047] Reference Figures 2 to 4 It is understood that a third locking block 113 is provided on the first side plate 110, and a third limiting groove 123 is provided on the second side plate 120. In two adjacent chain plates 100, the third locking block 113 of one chain plate 100 is located in the third limiting groove 123 of the other chain plate 100.
[0048] The third locking block 113 of one of the two adjacent chain plates 100 is inserted into the third limiting groove 123 of the other chain plate 100 to limit the position between the two adjacent chain plates 100, improve the stability of the connection between the two adjacent chain plates 100, and pre-install the two chain plates 100 through the third locking block 113 and the third locking groove to limit the position between the two chain plates 100, reducing the difficulty of subsequent installation of the connecting rod 200.
[0049] Reference Figures 2 to 4 It is understood that the third limiting groove 123 is a through groove, and the third locking block 113 includes two elastic pillars 114. The two elastic pillars 114 are spaced apart and abut against the inner wall of the third limiting groove 123. One end of the elastic pillar 114 is connected to the first side plate 110. The two elastic pillars 114 are provided with limiting protrusions 115 on their sides. The limiting protrusions 115 are located on the side of one elastic pillar 114 away from the other elastic pillar 114.
[0050] When the third locking block 113 is inserted into the third limiting groove 123, the two elastic pillars 114 can be pushed to bring them closer together, so that the elastic pillars 114 and the limiting protrusions 115 on the elastic pillars 114 can pass through the third limiting groove 123. The elastic pillars 114 are elastic, and after the elastic pillars 114 are released, they can return to their original position, so that the elastic pillars 114 abut against the inner wall of the third limiting groove 123, thereby limiting the position between the first side plate 110 and the second side plate 120. The limiting protrusions 115 abut against the second side plate 120. By setting the limiting protrusions 115, the position between the elastic pillars 114 and the second side plate 120 can be limited.
[0051] Reference Figure 1 It is understandable that the connecting rod 200 has a process hole 210 on its side.
[0052] The process holes 210 facilitate the operator in picking up the connecting rod 200. Specifically, the process holes 210 are provided on the portion between the two ends of the connecting rod 200 to facilitate the operator in picking up the connecting rod 200 from the side. Multiple process holes 210 are provided and spaced apart along the length of the connecting rod 200 to further facilitate the operator in picking up the connecting rod 200 from the side.
[0053] Reference Figure 1 It is understandable that both ends of the connecting rod 200 are provided with a socket, and the chain plate 100 is provided with a plug 140, which is located inside the socket.
[0054] By setting the insert 140 and the socket, the chain plate 100 and the connecting rod 200 can be fixedly connected. Specifically, one insert 140 is inserted into one socket of the connecting rod 200. Multiple inserts 140 are provided. Inserts 140 can be provided on both the first side plate 110 and the second side plate 120 to improve the stability of the connecting rod 200 connecting the two opposing chain plates 100. The insert 140 is set on the opposite end face of the chain plate 100, and the connecting rod 200 is set between adjacent chain plate assemblies 10 to reduce the influence of external factors on the connecting rod 200.
[0055] Reference Figure 2 and Figure 3 It is understandable that the second side plate 120 is provided with a groove 124, and part of the first side plate 110 is disposed in the groove 124.
[0056] A portion of the first side plate 110 is located within the second side plate 120 to improve the stability of the contact between the first side plate 110 and the second side plate 120. The first side plate 110 and the second side plate 120 are pressed tightly against each other due to the push of the elastic member 130. The groove 124 can increase the contact area between the first side plate 110 and the second side plate 120 to reduce the damage to the first side plate 110 and the second side plate 120.
[0057] Reference Figures 1 to 4 The drag chain of the third aspect embodiment of this application includes the chain links of the second aspect embodiment described above.
[0058] Multiple chain plates 100 are arranged sequentially. During the bending process of the chain plates 100, the first side plate 110 and the second side plate 120 of the chain plates 100 can rotate and move relative to the elastic element, so that the elastic element 130 can be bent and in a compressed state. Since the first side plate 110 of one chain plate 100 is connected to the second side plate 120 of the other chain plate 100, the second side plates 120 of the two adjacent chain plates 100 are brought closer to each other. The elastic element 130 in the compressed state can give the chain plates 100 an elastic restoring force to return to the initial state, so that the elastic element 130 can give the second side plates 120 of the two adjacent chain plates 100 an elastic tendency to move away from each other, thereby reducing the degree of collision between the second side plates 120 of the two adjacent chain plates 100 and reducing the sound generated by the collision between the two adjacent chain plates 100.
[0059] In the description of this specification, references to terms such as "one embodiment," "some embodiments," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0060] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A chain link assembly, characterized by, include: Multiple chain plates (100) are provided; each chain plate (100) includes a first side plate (110), a second side plate (120), and an elastic element (130). The two ends of the elastic element (130) are respectively connected to the first side plate (110) and the second side plate (120); the multiple chain plates (100) are arranged sequentially, and in two adjacent chain plates (100), the first side plate (110) of one chain plate (100) is connected to the second side plate (120) of the other chain plate (100), and the second side plates (120) of two adjacent chain plates (100) are spaced apart; bending the chain plate (100) can bring two adjacent second side plates (120) closer to each other and can put the elastic element (130) in a compressed state; During the process of the two chain plates (100) moving away from each other, the first side plate (110) and the second side plate (120) of the two chain plates (100) move away from each other. The elastic element (130) can push the first side plate (110) of one of the two adjacent chain plates (100) to abut against the second side plate (120) of the other chain plate (100), so that the two chain plates (100) can always maintain the abutment state through the first side plate (110) and the second side plate (120).
2. The chain link assembly of claim 1, wherein, The elastic element (130) is bent, one end of the elastic element (130) is connected to the side of the first side plate (110) near the second side plate (120), and the other end of the elastic element (130) is connected to the side of the second side plate (120) near the first side plate (110).
3. The chain link assembly of any one of claims 1-2, wherein, The elastic element (130) is S-shaped.
4. A chain link, characterized by include: The chain plate assembly according to any one of claims 1 to 3; two chain plate assemblies (10) are provided and spaced apart, and the chain plates (100) of the two chain plate assemblies (10) are arranged opposite to each other; Multiple connecting rods (200) are provided; the two ends of the connecting rods (200) are respectively connected to two opposite chain plates (100).
5. The chain link of claim 4, wherein, The first side plate (110) is provided with a first locking block (111) and a first limiting groove (112). In two adjacent chain plates (100), the first locking block (111) of one chain plate (100) is movably disposed in the first limiting groove (112) of the other chain plate (100).
6. The chain link of claim 4, wherein, The second side plate (120) is provided with a second locking block (121) and a second limiting groove (122). In two adjacent chain plates (100), the second locking block (121) of one chain plate (100) is movably disposed in the second limiting groove (122) of the other chain plate (100).
7. The link according to claim 4, characterized in that, The first side plate (110) is provided with a third locking block (113), and the second side plate (120) is provided with a third limiting groove (123). In two adjacent chain plates (100), the third locking block (113) of one chain plate (100) is movably disposed in the third limiting groove (123) of the other chain plate (100).
8. The link according to claim 7, characterized in that, The third limiting groove (123) is a through groove. The third locking block (113) includes two elastic pillars (114). The two elastic pillars (114) are spaced apart. The elastic pillars (114) abut against the inner wall of the third limiting groove (123). One end of the elastic pillar (114) is connected to the first side plate (110). The two elastic pillars (114) are provided with limiting bosses (115) on their sides. The limiting bosses (115) are located on the side of one elastic pillar (114) away from the other elastic pillar (114).
9. The link according to claim 4, characterized in that, Both ends of the connecting rod (200) are provided with sockets, and the chain plate (100) is provided with a plug (140), which is disposed in the socket.
10. A cable chain, characterized in that, include: The link according to any one of claims 4 to 9.