Small integrated bridge type drag chain

Abstract

The utility model discloses a small-sized integrated bridge type drag chain, which belongs to the technical field of drag chains and comprises a plurality of bridge type chain link main bodies and connectors at two ends of the chain link main bodies, the plurality of chain link main bodies are sequentially and rotatably connected, and the connectors at the two ends are respectively and rotatably connected with the end parts of the chain link main bodies; the chain link body and the two connectors are of an integrated structure. The bridge type chain link is composed of a plurality of bridge type chain link bodies and the connectors at the two ends of the bridge type chain link bodies, the bridge type chain link has the advantages of being compact in structure and high in overall integration degree, the chain link bodies and the two connectors are all of an integrated structure, and stability in the operation process can be improved; the drag chain is small in inner cavity width and bending radius and small in size, can meet the wiring requirements of micro sensors, optical fibers, air pipes and the like, and meanwhile can meet the high-complexity movement requirement of the drag chain.

Description

Technical Field

[0001] This utility model belongs to the field of cable chain technology, and specifically relates to a small integrated bridge cable chain. Background Technology

[0002] Cable chains are mainly used in various mechanical equipment to guide and protect cables and pipelines, meeting the specific application requirements of different equipment. Currently, existing cable chains are relatively bulky and heavy, resulting in inflexible movement and an inability to achieve highly complex motion trajectories. Therefore, to address the demanding motion requirements of cable chains, a small, integrated bridge-type cable chain has been developed to adapt to complex motion conditions. Utility Model Content

[0003] To address the above problems, this utility model provides a small, integrated bridge-type cable chain.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A small integrated bridge-type cable chain, the cable chain comprising several bridge-type chain link bodies and connectors at both ends, the several chain link bodies being rotatably connected in sequence, and the connectors at both ends being rotatably connected to the ends of the chain link bodies respectively; the chain link bodies and the two connectors are all integral structures.

[0006] Furthermore, the main body of the chain link includes two side chain plates and upper and lower crossbeams. The two ends of the crossbeams are respectively fixed to the middle of the two side chain plates. The main body of the chain link, the connector, and the adjacent link body are rotatably connected through a detachable connection structure. The connector includes a connector one and a connector two. The connector one includes two first connecting plates and a bottom plate at its bottom. The connector two includes two second connecting plates and a bottom plate at its bottom.

[0007] Furthermore, the connecting structure includes connecting posts and connecting holes that rotatably engage with them. The two ends of the chain plate are respectively provided with connecting posts and connecting holes. The first connecting plates on both sides are symmetrically provided with connecting holes that engage with the connecting posts on the chain plate. The outer walls of the second connecting plates on both sides are provided with connecting posts that engage with the connecting holes on the chain plate. The connecting posts and connecting holes at the beginning and end of several chain links are sequentially engaged. The ends of the chain plates where the connecting posts are located and the ends of the second connecting plates are provided with limiting structures that engage with the crossbeams.

[0008] Furthermore, the chain plates on both sides of the main body of the chain link and the middle of the second connecting plate are provided with mirror-symmetrical Z-shaped bends. The two sides of the Z-shaped bend of the chain plate are parallel concave and convex portions. The connecting post is provided on the outer surface of the concave portion of the chain plate and the outer surface of the concave portion of the second connecting plate. The connecting hole is provided on the convex portion of the chain plate and the first connecting plate. The end of the convex portion is a semi-circle that can rotate around the connecting post, and its inner edge is provided with a tangent that mates with the edge of the adjacent convex portion. The limiting structure is provided at the end of the concave portion.

[0009] Furthermore, the concave portion of the second connecting plate extends to the inner side of the convex portion of the adjacent chain plate, and the outer surface of the concave portion of the second connecting plate is in close contact with the inner side of the convex portion of the chain plate; the concave portion of the chain plate and the convex portion of the adjacent chain plate engage with each other and are connected by a connecting post.

[0010] Furthermore, the limiting structure includes a limiting boss and a transition arc. The limiting boss is located at the upper end of the concave portion, and the transition arc is located at the lower end of the concave portion. The junction of the limiting boss and the transition arc can abut against the edge of the bottom beam and the bottom plate of the first connector. The top step surface of the limiting boss can abut against the bottom surface of the top beam. The transition arc of the concave portion can rotate around the connecting column and is tangent to the rear edge of the bottom beam.

[0011] Furthermore, the outer surface of the first connector is flush with the outer side of the outer protrusion of the chain plate and the outer side of the outer protrusion of the second connecting plate.

[0012] Furthermore, the end face of the connecting post is flush with the outer surface of the first connector, the outer side of the chain plate and the outer side of the protruding part of the second connecting plate, and the inner side of the concave part of the second connecting plate and the inner side of the concave part of the chain plate.

[0013] Furthermore, the inner cavity width of the cable chain is 10-50mm, the height is 10mm, and the bending radius of the cable chain is ≥18mm.

[0014] Furthermore, the main body of the chain link and the connectors at both ends are integrally injection molded from engineering plastics.

[0015] The technological advancements achieved by this invention compared to existing technologies are as follows:

[0016] This utility model consists of several bridge-type chain links and connectors at both ends. It has the advantages of compact structure and high overall integration. The chain link body and the two connectors are all integrated structures, which can improve the stability during operation. The inner cavity width and bending radius of this drag chain are small, and the size is compact. It can adapt to the wiring requirements of micro sensors, optical fibers, air pipes, etc., and at the same time meet the high complexity motion requirements of drag chains. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] In the attached diagram:

[0019] Figure 1 A schematic diagram of a small integrated bridge cable chain provided for an embodiment of this utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the main structure of the central link;

[0021] Figure 3 for Figure 2 Bottom view of the main body of the middle link;

[0022] Figure 4 for Figure 1 Schematic diagram of the structure of the middle connector;

[0023] Figure 5 for Figure 1 Schematic diagram of the structure of the middle connector 2;

[0024] In the picture:

[0025] 1-Chain link body, 11-Chain plate, 12-Crossbeam; 2-Connector, 20-Base plate, 21-Joint 1, 210-First connecting plate; 22-Joint 2, 220-Second connecting plate; 3-Connecting post; 4-Connecting hole; 5-Z-shaped bend; 6-Inner concave part; 7-Outer convex part; 8-Limiting boss; 9-Transition arc; 10-Beveled surface; 13-Weight reduction hole; 14-Step surface; 15-Cut surface. Detailed Implementation

[0026] The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this utility model will be described below with reference to the accompanying drawings.

[0027] like Figure 1-5As shown, a small integrated bridge-type cable chain includes several bridge-type chain link bodies 1 and connectors 2 at both ends. The chain link bodies 1 are rotatably connected in sequence, and the connectors 2 at both ends are rotatably connected to the ends of the chain link bodies 1. The chain link bodies 1 and the two connectors 2 are all integrated structures. The chain link body 1 includes two side chain plates 11 and upper and lower crossbeams 12. The two ends of the crossbeams 12 are fixedly connected to the middle of the two side chain plates 11. The chain link body 1, connectors 2, and adjacent connecting bodies 1 are rotatably connected by detachable connecting structures. The connectors 2 include a first connector 21 and a second connector 22. The first connector 21 includes two first connecting plates 210 on both sides and a bottom plate 20. The second connector 22 includes two second connecting plates 220 on both sides and a bottom plate 20. The integrated structure of the chain link body and the two connectors provides high integration and facilitates rapid assembly. Its compact size allows it to adapt to the wiring requirements of micro sensors, optical fibers, and air pipes, while also meeting the demands of highly complex motion.

[0028] In specific embodiments of this utility model, such as Figure 2-5 As shown, the connection structure includes connecting posts 3 and connecting holes 4 that rotatably engage with them. Connecting posts 3 and connecting holes 4 are respectively provided at both ends of the chain plate 11. Connecting holes 4 that engage with the connecting posts 3 on the chain plate 11 are symmetrically provided on the first connecting plates 210 on both sides. Connecting posts 3 that engage with the connecting holes 4 on the chain plate 11 are provided on the outer walls of the second connecting plates 220 on both sides. The connecting posts 3 and connecting holes 4 at the beginning and end of several chain links 1 are sequentially engaged. Limiting structures that engage with the crossbeam 12 are provided at the ends of the chain plates 11 where the connecting posts 3 are located and at the ends of the second connecting plates 220, which can limit the bending radius of the cable chain. The connection and mutual rotation of the cable chain are achieved by the engagement of the connecting posts and connecting holes.

[0029] As a preferred structure, such as Figure 2 , 5As shown, the chain plate 11 on both sides of the chain body 1 and the middle of the second connecting plate 220 are provided with mirror-symmetrical Z-shaped bends 5. The Z-shaped bends 5 on both sides of the chain plate 11 are parallel concave portions 6 and convex portions 7. The crossbeam 12 is provided at the root of the concave portion 6. The connecting post 3 is provided on the outer surface of the concave portion 6 of the chain plate 11 and the outer surface of the concave portion 6 of the second connecting plate 220. The connecting hole 4 is provided on the convex portion 7 of the chain plate 11 and the first connecting plate 210. The end of the convex portion 7 is a semi-circle that can rotate around the connecting post 3, and its inner edge is provided with a tangent 15 that cooperates with the edge of the adjacent convex portion 7. The limiting structure is provided at the end of the concave portion 6. In specific assembly, the concave portion 6 of the second connecting plate 220 extends to the inner side of the convex portion 7 of the adjacent chain plate 11, and the outer surface of the concave portion of the second connecting plate 220 is in close contact with the inner surface of the convex portion 7 of the adjacent chain plate 11; the concave portion 6 of the chain plate 11 and the convex portion 7 of the adjacent chain plate 11 engage with each other and are connected by the connecting post 3. This structure reduces the sidewall thickness of the cable chain, facilitating free rotation between adjacent chain links and between the chain link body and the connector.

[0030] In specific embodiments of this utility model, such as Figure 2 , 3 As shown, the limiting structure includes a limiting boss 8 and a transition arc 9. The limiting boss 8 is located at the upper end of the concave portion 6, and the transition arc 9 is located at the lower end of the concave portion 6. The junction of the limiting boss 8 and the transition arc 9 can abut against the edge of the bottom crossbeam 12 and the bottom plate 20 of the connector 21. The top step surface 14 of the limiting boss 8 can abut against the bottom surface of the top crossbeam 12. The transition arc 9 of the concave portion 6 can rotate around the connecting post 3 and is tangent to the rear edge of the bottom crossbeam 12. The above limiting structure can ensure that the main bodies of adjacent chain links rotate within a certain angle, and the drag chain can achieve a small bending radius.

[0031] To further optimize the above scheme, the outer surface of the connector 21 is flush with the outer side of the protrusion 7 of the chain plate 11 and the outer side of the protrusion 7 of the second connecting plate 220. Simultaneously, the end face of the connecting post 3 is flush with the outer surface of the connector 21, the chain plate 11, and the outer side of the protrusion 7 of the second connecting plate 220; the inner side of the concave portion 6 of the second connecting plate 220 is flush with the inner side of the concave portion 6 of the chain plate 11. This structure ensures the flushness of the inner and outer surfaces of the chain plate, the first connecting plate, and the second connecting plate, resulting in a smooth and orderly appearance and internal cavity of the cable chain, facilitating assembly and wiring, and protecting the internal pipelines.

[0032] In specific manufacturing, the end face edge of the connecting post 3 is provided with a bevel 10. During disassembly, the position of the connecting post 3 can be quickly identified by the bevel, and the adjacent chain link body and connector can be disassembled by pressing the connecting post. The top surface of one end of the connector at both ends is a trapezoidal structure with a bevel, which can limit the bending radius of the cable chain and also reduce the width of the cable chain.

[0033] In a specific embodiment of this utility model, the inner cavity width of the cable chain is 10-50mm, the height is 10mm, and the bending radius of the cable chain is ≥18mm. The smaller inner cavity width facilitates adaptation to the wiring requirements of micro sensors, optical fibers, air pipes, etc. This cable chain can achieve a bending radius starting from 18mm, which can meet the high-complexity motion trajectories of robotic arm joints, rotating platforms, etc.

[0034] In specific manufacturing, the main body 1 of the chain link and the connectors 2 at both ends are integrally injection molded from engineering plastics. This integrated structure increases operational stability, and the processing technology is suitable for mass production. The base plates 20 of the connectors 2 at both ends are equipped with weight-reducing holes, which reduces the overall weight and material usage. This cable chain structure, using integral injection molding, effectively reduces the overall height of the cable chain by 30% compared to existing cable chains. Furthermore, the trapezoidal structure at the outer ends of the connectors reduces the width of the cable chain, resulting in a more compact size.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A compact integrated bridge type tow chain characterized by: The drag chain comprises a plurality of bridge-type link bodies and connecting heads at both ends of the link bodies, the plurality of link bodies are connected in sequence by rotation, and the connecting heads at both ends are connected with the end portions of the link bodies by rotation.

2. A compact integrated bridge type cable tray according to claim 1, characterized in that: The link body comprises two side link plates and upper and lower cross beams, the ends of the cross beams are fixedly connected with the middle portions of the two side link plates, and the link body, the connecting head and the adjacent link body are connected by rotation through a detachable connecting structure.

3. A compact integrated bridge type cable tray according to claim 2, characterized in that: The connecting structure comprises a connecting column and a connecting hole in rotational cooperation with the connecting column, the ends of the link plates are respectively provided with the connecting column and the connecting hole, the two side first connecting plates are symmetrically provided with the connecting hole in cooperation with the connecting column of the link plate, and the outer walls of the two side second connecting plates are respectively provided with the connecting column in cooperation with the connecting hole of the link plate.

4. A compact integrated bridge type cable tray according to claim 3, characterized in that: The connecting columns at the heads and tails of the plurality of link bodies are sequentially matched with the connecting holes, and the end portions of the link plates and the end portions of the second connecting plates where the connecting columns are located are respectively provided with limiting structures in cooperation with the cross beams.

5. A compact integrated bridge type cable tray according to claim 4, characterized in that: The middle portions of the two side link plates and the second connecting plates of the link body are respectively provided with mirror-symmetric z-shaped bends, the z-shaped bends of the link plates are respectively provided with mutually parallel inner recesses and outer protrusions, the connecting columns are arranged on the outer side surfaces of the inner recesses of the link plates and the outer side surfaces of the inner recesses of the second connecting plates, and the connecting holes are arranged on the outer protrusions of the link plates and the first connecting plates.

6. A compact integrated bridge towline according to claim 5, characterized in that: The outer protrusions are respectively provided with semicircular ends capable of rotating around the connecting columns and inner side edges provided with cutting surfaces in cooperation with the edges of the adjacent outer protrusions, and the limiting structures are arranged on the ends of the inner recesses.

7. A compact integrated bridge type cable tray according to claim 5, characterized in that: The inner recesses of the second connecting plates extend to the inner side of the outer protrusions of the adjacent link plates, and the outer surfaces of the inner recesses of the second connecting plates are close to the inner side surfaces of the outer protrusions of the link plates.

8. A compact integrated bridge towline according to claim 7, characterized in that: The inner recesses of the link plates and the outer protrusions of the adjacent link plates are mutually engaged and connected through the connecting columns.

9. A compact integrated bridge type cable tray according to claim 3, characterized in that: The limiting structures comprise limiting bosses and transition arcs, the limiting bosses are arranged on the upper portions of the ends of the inner recesses, and the transition arcs are arranged on the lower portions of the ends of the inner recesses.

10. A compact integrated bridge type cable tray according to any one of claims 1-9, characterized in that: The limiting bosses and the transition arcs are capable of abutting the edges of the bottom cross beams and the bottom plates of the first connecting heads, the top step surfaces of the limiting bosses are capable of abutting the bottom surfaces of the top cross beams, and the transition arcs of the inner recesses are capable of rotating around the connecting columns and being tangent to the rear edges of the bottom cross beams. The outer surfaces of the first connecting heads are flush with the outer side surfaces of the outer protrusions of the link plates and the outer side surfaces of the outer protrusions of the second connecting plates. The end surfaces of the connecting columns are flush with the outer surfaces of the first connecting heads, the outer side surfaces of the outer protrusions of the link plates and the outer side surfaces of the outer protrusions of the second connecting plates, and the inner side surfaces of the inner recesses of the second connecting plates and the inner recesses of the link plates are flush. The inner cavity of the drag chain has a width of 10-50 mm and a height of 10 mm, and the bending radius of the drag chain is greater than or equal to 18 mm. The link body and the connecting heads at both ends are integrally injection molded by engineering plastics.

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