Lightweight inside-outside double-open type bridge type drag chain

Abstract

The utility model discloses a light -duty inside and outside double -open type bridge type towed chain belongs to towed chain technical field, including a plurality of chain links main part and the joint no.

Description

Technical Field

[0001] This utility model belongs to the field of cable chain technology, and specifically relates to a lightweight double-opening bridge cable chain. Background Technology

[0002] Cable chains are components used to secure cables, wires, pneumatic hoses, and hydraulic lines to facilitate their rotation and movement. They are commonly used in mechanical equipment to protect various pipelines such as cables, oil pipes, and air pipes, and can meet the different movement requirements of the equipment. Currently, existing cable chains have a relatively bulky structure and large size, making them unsuitable for applications with limited space; assembly, wiring, and subsequent maintenance are also extremely inconvenient, while increasing the workload of operators. Utility Model Content

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

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

[0005] A lightweight double-opening bridge-type cable chain includes several chain link bodies and connectors 1 and 2 at both ends. Adjacent chain link bodies are rotatably connected. The chain link body has a split structure, including parallel chain plates 1 and 2 and crossbeams on its upper and lower sides. One end of each crossbeam is rotatably connected to the middle of the upper and lower edges of chain plate 1, and the other end of each crossbeam is detachably connected to the middle of the upper and lower edges of chain plate 2. Connectors 1 and 2 are snap-fitted to the chain link bodies at both ends of the cable chain and can be on the same straight line as the chain link bodies at both ends or at a 90° angle to the chain link bodies.

[0006] Furthermore, both the upper and lower edges of the first and second chain plates are provided with mounting grooves. The mounting groove of the first chain plate is provided with a fixed shaft, and one end of the crossbeam is provided with a semi-enclosed sleeve that rotates with the fixed shaft. The mounting groove of the second chain plate is provided with a protruding tongue, and the other end of the crossbeam is provided with a claw that engages with the protruding tongue. The opening of the sleeve faces upward, and the claw is an L-shape with its end bent downward.

[0007] Furthermore, the outer side of the end of the tongue is provided with an outwardly protruding locking head, and the end of the claw is provided with an inwardly bent portion for engaging with the locking head.

[0008] Furthermore, the claw is provided with symmetrical protruding shafts on both sides, and the mounting groove sidewall at the top of the tongue is provided with a U-shaped notch that mates with the protruding shafts.

[0009] Furthermore, the fixed shaft is disposed at the top of the mounting groove, and a gap is provided between the fixed shaft and the bottom of the mounting groove for the sleeve to pass through.

[0010] Furthermore, both ends of the main body of the crossbeam are provided with reinforcing ribs that protrude towards both sides and the inside of the drag chain, and the end faces of the reinforcing ribs abut against the inner walls of the first and second chain plates; the outer surface of the crossbeam is provided with X-shaped streamlined support ribs.

[0011] Furthermore, both ends of the first and second chain plates are semi-circular, and adjacent first and second chain plates are rotatably connected by a connecting structure. The connecting structure includes a rotating shaft and a corresponding positioning hole. The rotating shaft is located at the center of the outer recessed platform at the end of the first and second chain plates, and the positioning hole is located at the center of the inner recessed groove at the other end of the first and second chain plates. A protruding limiting block is provided between the outer side of the rotating shaft and the side wall of the recessed platform. A recessed platform surface between the rotating shaft and the outer edge of the recessed platform is provided with… The device has a concave arc-shaped limiting groove 1, and a concave arc-shaped limiting groove 2 on the surface of the sink between the positioning hole and the outer edge of the sink, for cooperating with the limiting block 1; a protruding limiting block 2 is provided between the positioning hole and the side wall of the sink, for cooperating with the limiting groove 1; the limiting block 1 and the limiting block 2 are respectively placed in the limiting groove 2 and the limiting groove 1, and can slide in an arc shape along the curvature as the cable chain bends, and the central angles corresponding to the limiting groove 1 and the limiting groove 2 are the same, and both are acute angles greater than 45°.

[0012] Furthermore, the limiting block one is a rectangular cylindrical shape that matches the inner wall of the limiting groove two. Weight reduction grooves are provided on the outer sides of the limiting block one and on the surface of the recessed platform between it and the rotating shaft. The limiting block one has a blind hole in the middle and open hollow interlayers in the inner side walls. Weight reduction grooves are provided on the surface of the recessed platform between the two sides of the limiting block one and the limiting groove one.

[0013] The second limiting block is a rectangular block that matches the inner wall of the first limiting groove. The interior of the second limiting block has two adjacent semi-circular grooves. Weight reduction grooves are provided on the surface of the sink groove between the two sides of the second limiting block and the second limiting groove.

[0014] Furthermore, the end of the connecting plate of the connector is an arc shape with a superior arc. The center of the connecting end of the connecting plate is provided with a positioning hole for cooperating with the rotating shaft on the adjacent chain plate 1 and chain plate 2. Two slots 1 with a 90° included angle are provided radially on the outer side of the positioning hole for cooperating with the limiting block 1 on the adjacent chain plate 1 and chain plate 2. The slots 1 are provided on the inner surface of the connecting plate.

[0015] The end of the connecting plate of the second connector is an arc-shaped section. A pivot is provided at the center of the connecting end of the connecting plate for engaging with the positioning holes on the adjacent chain plate one and chain plate two. Two slots two with a 90° included angle are provided on the outer radial side of the pivot for engaging with the limiting blocks two on the adjacent chain plate one and chain plate two. The slots two are provided on the outer surface of the connecting plate.

[0016] Furthermore, the main body of the chain link, joint one, and joint two are all injection molded from engineering plastics; the chain plate one, chain plate two, crossbeam, joint one, and joint two are all injection molded from engineering plastics.

[0017] The technological advancements achieved by this invention compared to existing technologies are as follows:

[0018] This invention features a detachable structure at one end of the upper and lower crossbeams of the chain link body, facilitating cable chain assembly, wiring, and subsequent maintenance. Cables, oil pipes, air pipes, water pipes, etc., can be installed or repaired without threading, simplifying installation steps and maintenance processes. The installation position of the cable chain can be adjusted by changing the relative angle between the end joints and the chain link body, offering flexible and convenient application. This invention has a compact structure and small size, making it suitable for small equipment with limited space. Assembly and maintenance are convenient and quick, and the use of engineering plastic injection molding ensures high rigidity to meet basic load requirements. Attached Figure Description

[0019] 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.

[0020] In the attached diagram:

[0021] Figure 1 An external view of a lightweight double-opening bridge-type cable chain provided for an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the open state of the upper and lower crossbeams of the chain link body in an embodiment of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the chain link body after removing the upper and lower crossbeams in an embodiment of this utility model;

[0024] Figure 4 for Figure 3 View A of the first and second chain plates;

[0025] Figure 5 This is a schematic diagram of the structure on the sinking platform in an embodiment of this utility model;

[0026] Figure 6 This is a schematic diagram illustrating the engagement of the claw and the tongue in an embodiment of this utility model.

[0027] Figure 7 This is a schematic diagram of the crossbeam structure in an embodiment of this utility model;

[0028] Figure 8 for Figure 7 A schematic diagram of the back of the central crossbeam;

[0029] Figure 9 This is a schematic diagram of the structure of connector one in an embodiment of this utility model;

[0030] Figure 10 This is a schematic diagram of the structure of connector two in an embodiment of this utility model;

[0031] In the picture:

[0032] 1-Chain link body; 11-Chain plate one; 12-Chain plate two; 13-Crossbeam; 2-Joint one; 3-Joint two; 4-Fixed shaft; 5-Sleeve; 6-Protruding tongue; 7-Claw; 8-Claw head; 9-Protruding shaft; 10-U-shaped notch;

[0033] 14-Reinforcing rib; 15-Supporting rib; 16-Rotating shaft; 17-Positioning hole; 18-Sunken platform; 19-Sunken groove; 20-Limiting block one; 21-Limiting groove one; 22-Limiting groove two; 23-Limiting block two; 24-Weight reduction groove; 25-Slot one; 26-Slot two; 27-Counterhole; 28-Inclined surface; 29-Hollow interlayer. Detailed Implementation

[0034] 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.

[0035] like Figure 1-4 As shown in the figure, the lightweight double-opening bridge-type cable chain provided by this utility model includes several chain link bodies 1 and connectors 2 and 3 at both ends. Adjacent chain link bodies 1 are rotatably connected. The chain link body 1 is a split structure, including parallel chain plates 11 and 2 and crossbeams 13 on its upper and lower sides. One end of each crossbeam 13 is rotatably connected to the middle of the upper and lower edges of the chain plates 11, and the other end of each crossbeam 13 is detachably connected to the middle of the upper and lower edges of the chain plates 12. The connectors 2 and 3 are snap-fitted to the chain link bodies 1 at both ends of the cable chain and can be on the same straight line as the chain link bodies 1 at both ends or at a 90° angle to the chain link bodies 1, which facilitates the adjustment of the cable chain installation position. The use of assembled chain link bodies and detachable crossbeams at one end facilitates the assembly, wiring, and subsequent maintenance of the cable chain. The overall structure is compact and suitable for small equipment with limited space. At the same time, it is made of engineering plastic injection molding, which makes the overall weight light and can meet the basic load requirements.

[0036] In specific embodiments of this utility model, such as Figure 3 , 4As shown in Figure 6, both the upper and lower edges of the first chain plate 11 and the second chain plate 12 are provided with mounting grooves. The mounting groove of the first chain plate 11 contains a fixed shaft 4, and one end of the crossbeam 13 is provided with a semi-enclosed sleeve 5 that rotatably engages with the fixed shaft 4. The mounting groove of the second chain plate 12 contains a protruding tongue 6, and the other end of the crossbeam 13 is provided with a claw 7 that engages with the protruding tongue 6. The opening of the sleeve 5 faces upwards, and the claw 7 is an L-shape with its end bent downwards. Simultaneously, the outer side of the end of the protruding tongue 6 has an outwardly protruding locking head 8, and the end of the claw 7 has an inwardly bent portion for engaging with the locking head 8. The fixed shaft 4 is located at the top of the mounting groove, and a gap is provided between the fixed shaft 4 and the bottom of the mounting groove for the sleeve 5 to pass through, facilitating the rotation of the sleeve at one end of the crossbeam around the fixed shaft. During installation, place the sleeve at one end of the crossbeam onto the fixed shaft, and then press the claw at the other end onto the tongue. Use the bent part at the end of the claw to hook the clamp head to securely fix the crossbeam; the crossbeam can be quickly opened by reversing the operation.

[0037] Further optimize the above structure, such as Figure 3 As shown, the claw 7 has symmetrically arranged protruding shafts 9 on both sides, and the mounting groove sidewall at the top of the tongue 6 has a U-shaped notch 10 that mates with the protruding shafts 9. The protruding shafts can further improve the firmness of the beam installation, thereby improving the stability of the cable chain during operation.

[0038] In the specific production process, such as Figure 7 , 8 As shown, both ends of the main body of the crossbeam 13 are provided with reinforcing ribs 14 protruding towards both sides and the inside of the cable chain. The end faces of the reinforcing ribs 14 abut against the inner walls of the first chain plate 11 and the second chain plate 12. The outer surface of the crossbeam 13 is provided with X-shaped streamlined support ribs 15. This structure can improve the overall strength of the crossbeam. At the same time, the top of the support ribs is higher than the surrounding surface of the crossbeam, which can save manufacturing materials while improving overall rigidity.

[0039] In specific embodiments of this utility model, such as Figure 3 , 4As shown, both ends of the first chain plate 11 and the second chain plate 12 are semi-circular. Adjacent first chain plates 11 and second chain plates 12 are rotatably connected by a connecting structure. The connecting structure includes a rotating shaft 16 and a positioning hole 17 that mates with it. The rotating shaft 16 is located at the center of the outer recessed platform 18 at the end of the first chain plate 11 and the second chain plate 12. The positioning hole 17 is located at the center of the inner recessed groove 19 at the other end of the first chain plate 11 and the second chain plate 12. A protruding limiting block 20 is provided between the outer side of the rotating shaft 16 and the side wall of the recessed platform 18. A surface of the recessed platform 18 between the rotating shaft 16 and the outer edge of the recessed platform 18 is provided with... The device has a concave arc-shaped limiting groove 21. The surface of the recessed groove 19 between the positioning hole 17 and the outer edge of the recessed groove 19 is provided with a concave arc-shaped limiting groove 22 for cooperating with the limiting block 20. A protruding limiting block 23 is provided between the positioning hole 17 and the side wall of the recessed groove 19 for cooperating with the limiting groove 21. The limiting block 20 and the limiting block 23 are respectively placed in the limiting groove 22 and the limiting groove 21, and can slide in an arc shape along the curvature as the cable chain bends, which facilitates the bending of the cable chain. The central angles corresponding to the limiting groove 21 and the limiting groove 22 are the same and are both acute angles greater than 45°.

[0040] In the specific design, the pivot 16 is a hollow shell. The back of the chain plate 11 and chain plate 22 where the pivot 16 is located is provided with countersunk holes 27 extending into the inner cavity of the pivot 16, which can reduce the material and reduce the overall weight. At the same time, the outer end face edge of the pivot 16 is provided with a bevel 28, and after the drag chain is assembled, the bevel is lower than the outer surface of the chain plate 1 and the chain plate, which makes it easy to quickly find the position of the pivot during disassembly.

[0041] like Figure 3-5 As shown, the limiting block 20 is a rectangular cylindrical shape that matches the inner wall of the limiting groove 22. Weight-reducing grooves 24 are provided on the outer sides of the limiting block 20 and on the surface of the recessed platform 18 between the limiting block 20 and the rotating shaft 16. A blind hole is provided in the center of the limiting block 20, and open hollow interlayers 29 are provided inside the side walls. Weight-reducing grooves 24 are provided on the surface of the recessed platform 18 between the limiting block 20 and the limiting groove 21 on both sides. The limiting block 23 is a rectangular block that matches the inner wall of the limiting groove 21. Two adjacent semi-circular grooves are provided inside the limiting block 23. Weight-reducing grooves 24 are provided on the surface of the recessed groove 19 between the limiting block 23 and the limiting groove 22 on both sides. This structure saves manufacturing materials and reduces the overall weight. Simultaneously, the limiting blocks 1 and 2 of this structure can also provide shock absorption and cushioning during the bending process of the cable chain.

[0042] In specific embodiments of this utility model, such as Figure 9As shown, the connecting plate end of the connector 2 is an arc-shaped section. A positioning hole 17 is provided at the center of the connecting end of the connecting plate for engaging with the rotating shaft 16 on the adjacent chain plate 11 and chain plate 22. Two slots 25 at a 90° angle are provided radially on the outer side of the positioning hole 17 for engaging with the limiting blocks 20 on the adjacent chain plate 11 and chain plate 22. The slots 25 are located on the inner surface of the connecting plate. During assembly, the limiting blocks 1 on the chain link body engage with the two slots 1 respectively, enabling the connector 1 to maintain two angles with the adjacent chain link body: 0° and 90°.

[0043] Meanwhile, the connecting plate end of the second connector 3 is an arc-shaped section. A pivot 16 is located at the center of the connecting end of the connecting plate, which engages with the positioning holes 17 on adjacent chain plates 11 and 12. Two slots 26 at a 90° angle are provided radially on the outer side of the pivot 16, which engage with limiting blocks 23 on adjacent chain plates 11 and 12. The slots 26 are located on the outer surface of the connecting plate. Similarly, during assembly, the limiting blocks 2 on the chain link body engage with the two slots 2, allowing for adjustments to maintain 0° and 90° angles between the second connector and the adjacent chain link body, providing flexibility and convenience.

[0044] In the specific manufacturing process, the chain plate 11, chain plate 12, crossbeam 13, connector 12, and connector 23 are all injection molded from engineering plastics. This process facilitates mass production, results in a lightweight overall structure, and simultaneously improves rigidity to meet basic load requirements. This cable chain has a compact structure, small size, and low space occupation, making it suitable for use in small, space-constrained mechanical equipment.

[0045] In summary, this utility model has the advantages of simple and compact structure, convenient and quick loading, unloading and maintenance. It is small in size and can be applied to small equipment with limited space. The cable chain is made of engineering plastic injection molding, which is convenient for mass production, reduces the overall weight, and improves rigidity to meet the basic load requirements. The upper and lower crossbeams of the cable chain can be opened and disassembled at one end, which is convenient for quick assembly and wiring, and also facilitates the later maintenance of various pipelines. It greatly simplifies the maintenance process, improves work efficiency, and reduces the workload of operators.

[0046] 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 lightweight double-opening bridge-type cable chain, characterized in that: The device includes several chain link bodies and two connectors at both ends. Adjacent chain link bodies are rotatably connected. The chain link body is a split structure, including two parallel chain plates and two crossbeams on its upper and lower sides. One end of each crossbeam is rotatably connected to the middle of the upper and lower edges of chain plate one, and the other end of each crossbeam is detachably connected to the middle of the upper and lower edges of chain plate two. The connectors one and two are snap-fitted to the chain link bodies at both ends of the drag chain and can be on the same straight line as the chain link bodies at both ends or at a 90° angle to the chain link bodies.

2. The lightweight double-opening bridge-type cable chain according to claim 1, characterized in that: Both the first and second chain plates have mounting grooves at the center of their upper and lower edges. The mounting groove of the first chain plate has a fixed shaft inside, and one end of the crossbeam has a semi-enclosed sleeve that rotates with the fixed shaft. The mounting groove of the second chain plate has a protruding tongue, and the other end of the crossbeam has a claw that engages with the protruding tongue. The opening of the sleeve faces upward, and the claw is an L-shape with its end bent downward.

3. A lightweight double-opening bridge-type cable chain according to claim 2, characterized in that: The outer end of the tongue has an outwardly protruding locking head, and the end of the claw has an inwardly bent portion for engaging with the locking head.

4. A lightweight double-opening bridge-type cable chain according to claim 2, characterized in that: The claw has symmetrical protruding shafts on both sides, and the mounting groove sidewall at the top of the tongue has a U-shaped notch that mates with the protruding shafts.

5. A lightweight double-opening bridge-type cable chain according to claim 2, characterized in that: The fixed shaft is located at the top of the mounting groove, and a gap is provided between the fixed shaft and the bottom of the mounting groove for the sleeve to pass through.

6. A lightweight double-opening bridge-type cable chain according to claim 2, characterized in that: The main body of the crossbeam is provided with reinforcing ribs at both ends that protrude toward the sides and the inside of the drag chain. The end face of the reinforcing ribs abuts against the inner wall of the first and second chain plates. The outer surface of the crossbeam is provided with X-shaped streamlined support ribs.

7. A lightweight double-opening bridge-type cable chain according to claim 2, characterized in that: Both ends of the first and second chain plates are semi-circular. Adjacent first and second chain plates are rotatably connected by a connecting structure. The connecting structure includes a rotating shaft and a corresponding positioning hole. The rotating shaft is located at the center of the outer recessed platform at the end of the first and second chain plates. The positioning hole is located at the center of the inner recessed groove at the other end of the first and second chain plates. A protruding limiting block is provided between the outer side of the rotating shaft and the side wall of the recessed platform. An inner limit block is provided on the surface of the recessed platform between the rotating shaft and the outer edge of the recessed platform. A concave arc-shaped limiting groove one, and an inwardly concave arc-shaped limiting groove two on the surface of the sink between the positioning hole and the outer edge of the sink, for cooperating with limiting block one; a protruding limiting block two is provided between the positioning hole and the side wall of the sink, for cooperating with limiting groove one; limiting block one and limiting block two are respectively placed in limiting groove two and limiting groove one, and can slide in an arc shape along the curvature as the cable chain bends, the central angles corresponding to limiting groove one and limiting groove two are the same, and both are acute angles greater than 45°.

8. A lightweight double-opening bridge-type cable chain according to claim 7, characterized in that: The limiting block one is a rectangular cylindrical shape that matches the inner wall of the limiting groove two. The limiting block one has weight-reducing grooves on both outer sides and the surface of the recessed platform between it and the rotating shaft. The limiting block one has a blind hole in the middle and open hollow interlayers in the inner side walls. The limiting block one has weight-reducing grooves on both outer sides and the surface of the recessed platform between it and the limiting groove one. The second limiting block is a rectangular block that matches the inner wall of the first limiting groove. The interior of the second limiting block has two adjacent semi-circular grooves. Weight reduction grooves are provided on the surface of the sink groove between the two sides of the second limiting block and the second limiting groove.

9. A lightweight double-opening bridge-type cable chain according to claim 7, characterized in that: The end of the connecting plate of the connector is an arc-shaped section. A positioning hole is provided at the center of the connecting end of the connecting plate for engaging with the rotating shaft on the adjacent chain plate 1 and chain plate 2. Two slots with a 90° angle are provided radially on the outer side of the positioning hole for engaging with the limiting block on the adjacent chain plate 1 and chain plate 2. The slots are located on the inner surface of the connecting plate. The end of the connecting plate of the second connector is an arc-shaped section. A pivot is provided at the center of the connecting end of the connecting plate for engaging with the positioning holes on the adjacent chain plate one and chain plate two. Two slots two with a 90° included angle are provided on the outer radial side of the pivot for engaging with the limiting blocks two on the adjacent chain plate one and chain plate two. The slots two are provided on the outer surface of the connecting plate.

10. A lightweight double-opening bridge-type cable chain according to any one of claims 1-9, characterized in that: The main body of the chain link, joint one, joint two, and comb plate are all injection molded from engineering plastics.

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