A plastic drag chain link plate heightening support
Patent Information
- Application Number
- CN202521540258.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-23
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-07-23
AI Technical Summary
[0003]在实际布线过程中,拖链内部的线束可以是电缆、油管、气管或水管等,上述线束的型号粗细差别较大,对于较粗的线束,由于现有的塑料拖链上盖板和下盖板高度均不可调节,导致部分线束无法进行安装,安装适用性较差
[0012] This utility model features a specially designed support structure for installing a height-adjusting bracket. The upper and lower ends of the bracket are connected to an upper cover plate and a lower cover plate. The height adjustment can be achieved by inserting the limiting plate into slots of different heights, thus increasing the height of the cable chain's internal installation space. This allows for the installation of thicker cable harnesses, making it more versatile. The upper cover plate and the upper end of the height-adjusting bracket are connected by a flexible snap-fit, facilitating temporary disassembly for maintenance of the cable chain's internal cable harnesses.
Smart Images

Figure CN224742826U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cable chain connecting components and equipment, and more specifically, to a plastic cable chain link plate heightening support. Background Technology
[0002] Plastic cable chains are mainly composed of symmetrical connecting plates on both sides, an openable upper cover plate, and a closed lower cover plate. In order to facilitate the internal wiring, several horizontal and vertical partitions are designed in the area between the upper and lower cover plates to separate the wiring harnesses of different equipment and functions, and to provide traction and protection for the wiring harnesses.
[0003] In actual wiring, the wire harnesses inside the cable chain can be cables, oil pipes, air pipes, or water pipes, etc. The thickness of these wire harnesses varies greatly. For thicker wire harnesses, since the height of the existing plastic cable chain's upper and lower cover plates is not adjustable, some wire harnesses cannot be installed, resulting in poor installation applicability. Utility Model Content
[0004] The purpose of this utility model is to provide a heightening support for plastic cable chain link plates. This heightening support is used to connect an upper cover plate and a lower cover plate to the upper and lower ends of both sides of the plastic cable chain link plate, respectively, so as to realize the height adjustment of the internal installation space of the cable chain. It can be used to install thicker wire harnesses and has better applicability.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A plastic cable chain link plate heightening support includes left and right symmetrical cable links. Supports are installed on the outer sides of each symmetrical cable link. The support has an H-shaped cross-section. The support is fixedly connected to the outer side of the cable link by two countersunk bolts arranged obliquely upwards and downwards. The support surface is machined with countersunk grooves, and the outer side of the cable link is machined with threaded holes. The two countersunk bolts pass through the countersunk grooves and are screwed into the threaded holes. A transverse limiting plate is embedded in the middle of the outer side of the support. Through grooves are machined inside the vertical sections on both sides of the support, and heightening brackets pass through these through grooves. The lower end of the heightening bracket is fixedly connected to the upper surface of a lower cover plate, and the upper end of the heightening bracket is inserted into a positioning groove in the upper cover plate.
[0007] As a further optimization of this solution, the surface of the height-increasing bracket is machined with several adjustment slots arranged at equal intervals from top to bottom, and the inner side of the limiting plate is machined with two parallel insert plates at the left and right ends, and the insert plates are aligned and inserted into the adjacent slots.
[0008] As a further optimization of this solution, the surface of the support is machined with a transverse groove and a limiting plate is embedded inside the transverse groove. The limiting plate is installed and fixed by tightening a countersunk bolt at the middle position into the threaded hole inside the support.
[0009] As a further optimization of this solution, the positioning groove of the upper cover plate is machined with arc-shaped slots on both sides.
[0010] As a further optimization of this solution, the upper end of the height-increasing bracket is provided with a protrusion, and movable arc-shaped blocks are embedded in the upper positions of both sides of the protrusion. A support plate is provided outward in the middle position of both sides of the protrusion. Movable buttons are installed at the lower ends of both sides of the protrusion. The interior of the movable button is connected to the interior of the movable arc-shaped block and is pressed outward by a spring inside the upper end of the height-increasing bracket. The movable arc-shaped block is aligned and embedded in the arc-shaped slot.
[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows:
[0012] This utility model features a specially designed support structure for installing a height-adjusting bracket. The upper and lower ends of the bracket are connected to an upper cover plate and a lower cover plate. The height adjustment can be achieved by inserting the limiting plate into slots of different heights, thus increasing the height of the cable chain's internal installation space. This allows for the installation of thicker cable harnesses, making it more versatile. The upper cover plate and the upper end of the height-adjusting bracket are connected by a flexible snap-fit, facilitating temporary disassembly for maintenance of the cable chain's internal cable harnesses. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the support connection structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the disassembled structure of the height-increasing bracket of this utility model;
[0015] Figure 3 This is a schematic diagram of the disassembled slot and insert plate structure of this utility model;
[0016] Figure 4 This is a schematic diagram of the disassembled support structure of this utility model;
[0017] Figure 5 This is a schematic diagram of the top structure of the height-increasing bracket of this utility model;
[0018] Figure 6 This is a schematic diagram of the arc-shaped slot structure of this utility model;
[0019] In the diagram: 1. Cable chain; 2. Support; 3. Countersunk bolt; 4. Limiting plate; 5. Heightening bracket; 6. Lower cover plate; 7. Upper cover plate; 8. Positioning groove; 9. Slot; 10. Insert plate; 11. Threaded hole; 12. Through groove; 13. Horizontal groove; 14. Countersunk groove; 15. Protrusion; 16. Movable arc-shaped locking block; 17. Support plate; 18. Movable button; 19. Arc-shaped locking groove. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0021] To address the issue that existing cables, oil pipes, gas pipes, or water pipes vary greatly in thickness, and that the existing plastic cable carriers have non-adjustable upper and lower cover plates, making it impossible to install some cable harnesses and resulting in poor installation applicability;
[0022] like Figure 1 and Figure 4 As shown, this application includes left and right symmetrical chain link plates 1. Each left and right symmetrical chain link plate 1 is equipped with a support 2 on its outer side. The support 2 has an H-shaped cross-section. The support 2 is fixedly connected to the outer side of the chain link plate 1 by two countersunk bolts 3 that are symmetrically arranged at the top and bottom. The support surface is machined with a countersunk groove 14 and the outer side of the chain link plate 1 is machined with a threaded hole 11. The two countersunk bolts 3 pass through the countersunk groove 14 and are screwed into the threaded hole 11. A horizontal limiting plate 4 is embedded and installed at the middle position of the outer side of the support 2. The vertical sections on both sides of the support 2 are machined with through grooves 12 and the through grooves 12 pass through the heightening brackets 5. The lower end of the heightening brackets 5 is fixedly connected to the upper surface of the lower cover plate 6, and the upper end of the heightening brackets 5 is inserted into the positioning groove 8 of the upper cover plate 7.
[0023] like Figure 2 and Figure 3 As shown, the surface of the height-increasing bracket 5 has several adjustment slots 9 arranged at equal intervals from top to bottom. The inner side of the limiting plate 4 has two parallel insert plates 10 on both the left and right ends. The insert plates 10 are aligned and inserted into the adjacent slots 9.
[0024] like Figure 4 As shown, the support surface is machined with a transverse groove 13 and a limiting plate 4 is embedded inside the transverse groove 13. The limiting plate 4 is installed and fixed by a countersunk bolt 3 at the middle position into the threaded hole 11 inside the support 2.
[0025] like Figure 6 As shown, the positioning groove 8 of the upper cover plate 7 has arc-shaped slots 19 machined on both sides inside;
[0026] like Figure 5As shown, the upper end of the height-increasing bracket 5 is provided with a protrusion 15. Movable arc-shaped locking blocks 16 are embedded in the upper part of both sides of the protrusion 15, and a support plate 17 is provided outward in the middle of both sides of the protrusion 15. Movable buttons 18 are installed at the lower end of both sides of the protrusion 15. The interior of the movable button 18 is connected to the interior of the movable arc-shaped locking block 16 and is pressed outward by a spring inside the upper end of the height-increasing bracket 5. The movable arc-shaped locking block 16 is aligned and embedded in the arc-shaped locking groove 19.
[0027] Specifically, based on the actual traction harness size, select an appropriate length of extender bracket 5. The lower end of the extender bracket 5 is fixedly connected to a lower cover plate 6. First, connect and fix the support 2 on the side of the chain link plate 1 with countersunk bolts 3. Then, insert the extender bracket 5 upward along the through groove of the support 2. Align and insert the protrusion 15 into the positioning groove 8 of the upper cover plate 7. The length of the extension of the lower cover plate 6 and the upper cover plate 7 can be adjusted by inserting the insert plate 10 of the limiting plate 4 into the slots 9 of different heights to achieve the height adjustment of the installation space inside the cable chain. The limiting plate 4 is also embedded and fixed into the transverse groove 13 by countersunk bolts 3.
[0028] When installing the cover plate 7, the operator can press the movable button 18 inward with their thumb and forefinger to move the movable arc-shaped locking block 16 inward, compressing the internal spring and then inserting it into the cover plate 7. The lower end of the cover plate 7 is supported and positioned by the support plate 17. After releasing the movable button 18, the movable arc-shaped locking block 16 returns to its original position under the action of the spring force and is locked into the arc-shaped locking groove 19, fixing the cover plate 7. During maintenance, the above steps can be repeated to temporarily remove the cover plate 7 and repair the internal wiring harness of the cable chain 1.
[0029] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0030] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A plastic cable chain link plate heightening support, comprising left and right symmetrical link plates, characterized in that: Each of the symmetrical chain link plates has a support mounted on its outer side. The support has an H-shaped cross-section and is fixedly connected to the outer side of the chain link plate by two countersunk bolts that are symmetrically arranged diagonally. The support surface is machined with countersunk grooves and the outer side of the chain link plate is machined with threaded holes. The two countersunk bolts pass through the countersunk grooves and are screwed into the threaded holes. A horizontal limiting plate is embedded in the middle of the outer side of the support. Both vertical sections on both sides of the support have through grooves through which a heightening bracket passes. The lower end of the heightening bracket is fixedly connected to the upper surface of the lower cover plate, and the upper end of the heightening bracket is inserted into the positioning groove of the upper cover plate.
2. The plastic cable chain link plate heightening support according to claim 1, characterized in that: The height-increasing bracket has several adjustment slots arranged at equal intervals from top to bottom on its surface. The inner side of the limiting plate has two parallel insert plates on its left and right ends, and the insert plates are aligned and inserted into the adjacent slots.
3. The plastic cable chain link plate heightening support according to claim 2, characterized in that: The support surface is machined with a transverse groove and a limiting plate is embedded inside the transverse groove. The limiting plate is installed and fixed by tightening a countersunk bolt at the middle position into the threaded hole inside the support.
4. The plastic cable chain link plate heightening support according to claim 3, characterized in that: The upper cover plate has arc-shaped slots machined on both sides of the positioning groove.
5. The plastic cable chain link plate heightening support according to claim 4, characterized in that: The height-increasing bracket has a protrusion at the upper end. Movable arc-shaped blocks are embedded at the upper ends of both sides of the protrusion, and a support plate is provided outward at the middle of both sides of the protrusion. Movable buttons are installed at the lower ends of both sides of the protrusion. The movable buttons are connected to the movable arc-shaped blocks and are pressed outward by a spring inside the upper end of the height-increasing bracket. The movable arc-shaped blocks are aligned and embedded in the arc-shaped slots.