A high-temperature resistant drag chain cable

Abstract

This utility model discloses a high-temperature resistant drag chain cable, including a cable body with a cable and drag chain assembly limiting component on its surface. This utility model constructs a double fire barrier by coating the cable body with a fire-retardant resin base coating and embedding a flame-retardant filler strip, effectively blocking high-temperature radiation, inhibiting flame spread, and reducing the risk of fire and insulation failure in high-temperature scenarios. Simultaneously, by employing a split limiting component composed of a first positioning block and a second positioning block, and utilizing a semi-circular groove and elastic compression block to achieve tight cable wrapping, coupled with a multi-fixing structure of connecting blocks, slots, and locking rods, it ensures no loosening during high-frequency movement, preventing radial swaying and detachment. The quick-locking design of the docking groove and drag chain plate docking block simplifies installation and is compatible with T-shaped splicing grooves and splicing blocks, enabling orderly splicing of multiple cables to prevent tangling, reducing friction damage, significantly extending service life, and lowering maintenance costs.

Description

Technical Field

[0001] This utility model belongs to the field of drag chain cable technology, and specifically relates to a high-temperature resistant drag chain cable. Background Technology

[0002] In fields such as industrial automation, robotics, and logistics, drag chain cables serve as crucial connection carriers for moving equipment components, requiring them to withstand long-term high-frequency bending, stretching, and complex environmental conditions. The use of drag chain cables in high-temperature environments presents particularly significant challenges: traditional drag chain cable sheaths are often made of ordinary PVC or basic TPE materials, which are prone to softening and cracking at temperatures exceeding 70°C, leading to decreased insulation performance and even short-circuit faults. Furthermore, in special scenarios such as metallurgy and around high-temperature furnaces, cables face direct threats from open flames or high-temperature splashes, and the existing fire-retardant capabilities of these cables are insufficient to meet safety requirements. On the other hand, the installation stability of drag chain cables within the drag chain has long been a concern: during high-frequency reciprocating motion, cables are prone to axial movement, entanglement, or excessive friction against the drag chain's inner wall due to a lack of effective positioning, resulting in accelerated sheath wear, shielding layer breakage, and consequently affecting signal transmission stability. Traditional fixing methods often rely on cable ties or simple clamps, which are cumbersome to install and have poor compatibility. Especially after wiring has been completed at both ends of the cable, adding fixing components can easily cause secondary damage to the cable. Furthermore, the lack of standardized splicing and positioning structures when multiple cables are installed in parallel exacerbates the risks of entanglement and interference, and increases the difficulty of later maintenance. Utility Model Content

[0003] The purpose of this invention is to provide a high-temperature resistant drag chain cable to solve the problem mentioned in the background art that the cable does not have an assembly and fixing structure with the drag chain.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature resistant drag chain cable, comprising a cable body, wherein a cable and drag chain assembly limiting component is provided on the surface of the cable body, the cable and drag chain assembly limiting component includes a first positioning block disposed on one side of the surface of the cable body and a second positioning block disposed on the other side of the surface of the cable body, the second positioning block being fitted and connected to the end of the first positioning block, and a semi-circular groove being provided on the inner side of both the second positioning block and the first positioning block, wherein an elastic extrusion block is fixed inside the semi-circular groove, and the elastic extrusion block is pressed and fitted against the surface of the cable body.

[0005] Preferably, the second positioning block has symmetrical connecting grooves at both ends, and the first positioning block has symmetrical connecting blocks fixed at its ends, with the connecting blocks engaging with the connecting grooves.

[0006] Preferably, the bottom end of the connecting block is provided with a slot, and a buckle is fixed inside the connecting slot, and the buckle engages with the slot.

[0007] Preferably, the connecting groove has a locking hole inside, the top of the connecting block has an embedded screw hole, and the top of the locking hole is provided with a locking rod that passes through the embedded screw hole and connects to the locking hole. The locking rod is screwed and fixedly connected to the locking hole.

[0008] Preferably, the bottom ends of the second positioning block and the first positioning block are provided with drag chain plates, the bottom ends of the first positioning block and the second positioning block are symmetrically provided with docking grooves, the top ends of the drag chain plates are symmetrically fixed with docking blocks, the docking blocks are engaged with the docking grooves, the two sides of the docking blocks are symmetrically provided with limit grooves, the two sides of the inner wall of the docking groove are symmetrically fixed with limit buckles, and the limit buckles are engaged with the limit grooves.

[0009] Preferably, a T-shaped splicing groove is provided through the outer side of the first positioning block, and a T-shaped splicing block is fixed to the outer side of the second positioning block.

[0010] Preferably, the surface of the cable body is coated with a fire-retardant coating, and the interior of the cable body is provided with a flame-retardant filler strip.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention constructs a double fire barrier by coating the cable body with a fire-retardant resin coating and embedding a flame-retardant filler strip. This effectively blocks high-temperature radiation, inhibits flame spread, and reduces the risk of fire and insulation failure in high-temperature environments. Simultaneously, a split-type limiting assembly consisting of a first and second positioning block, along with a semi-circular groove and elastic compression block, tightly wraps the cable. Combined with a multi-fixing structure including a connecting block, slot, and locking rod, it ensures no loosening during high-frequency movement, preventing radial swaying and detachment. The quick-locking design of the docking groove and drag chain plate docking block simplifies installation and is compatible with T-shaped splicing grooves and blocks, enabling orderly splicing of multiple cables to prevent tangling, reducing friction damage, significantly extending service life, and lowering maintenance costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the external structure of the present utility model;

[0014] Figure 2 This is a diagram showing the cable and drag chain fixing and usage state of this utility model;

[0015] Figure 3 In this utility model Figure 2 Enlarged view of point A;

[0016] Figure 4 In this utility model Figure 2 Enlarged view of point B;

[0017] In the diagram: 1. Cable body; 100. First positioning block; 101. Second positioning block; 102. Semicircular groove; 103. Elastic compression block; 200. Connecting groove; 201. Connecting block; 300. Slot; 301. Buckle; 400. Locking hole; 401. Embedded screw hole; 402. Locking rod; 500. Butt joint groove; 501. Butt joint block; 502. Limiting groove; 503. Limiting buckle; 600. T-shaped splicing groove; 601. T-shaped splicing block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1 to 4 This utility model provides a technical solution: a high-temperature resistant drag chain cable, including a cable body 1. The surface of the cable body 1 is provided with a cable and drag chain assembly limiting component. The cable and drag chain assembly limiting component includes a first positioning block 100 disposed on one side of the surface of the cable body 1 and a second positioning block 101 disposed on the other side of the surface of the cable body 1. The second positioning block 101 is attached to the end of the first positioning block 100. Semicircular grooves 102 are opened on the inner side of both the second positioning block 101 and the first positioning block 100. An elastic compression block 103 is fixed inside the semicircular groove 102. The elastic compression block 103 is pressed and attached to the surface of the cable body 1. Through the limiting component composed of the first positioning block 100 and the second positioning block 101, the cable body 1 is wrapped by the semicircular grooves 102 on both sides. The inner elastic compression block 103 is tightly attached to the surface of the cable, which not only achieves flexible fixation of the cable and avoids rigid compression damage to the sheath, but also restricts the radial sway of the cable and prevents it from moving randomly in the drag chain, ensuring stability in high-frequency movement. At the same time, the split design is suitable for the installation requirements of cables of different diameters.

[0020] In this embodiment, preferably, the second positioning block 101 has symmetrically provided connecting grooves 200 at both ends, and the first positioning block 100 has symmetrically fixed connecting blocks 201 at its ends. The connecting blocks 201 are engaged with the connecting grooves 200, and the connecting grooves 200 of the second positioning block 101 are engaged with the connecting blocks 201 of the first positioning block 100. This provides initial positioning and axial constraint for the two positioning blocks, ensuring accurate positioning during splicing, preventing assembly offset, laying the foundation for subsequent multiple fixing structures, and improving assembly efficiency and structural integrity.

[0021] In this embodiment, preferably, the bottom end of the connecting block 201 is provided with a slot 300, and a buckle 301 is fixed inside the connecting slot 200. The buckle 301 engages with the slot 300. The engagement between the slot 300 at the bottom end of the connecting block 201 and the buckle 301 inside the connecting slot 200 adds a secondary limit on the basis of the initial positioning. The buckle 301 is used to achieve quick clamping by elastic deformation, which prevents the positioning block from separating during movement, enhances the structural stability, and only requires a certain external force to separate during disassembly, thus taking into account both the reliability of the fixation and the convenience of disassembly and assembly.

[0022] In this embodiment, preferably, a locking hole 400 is provided inside the connecting groove 200, and an embedded screw hole 401 is provided through the top of the connecting block 201. A locking rod 402 is provided at the top of the locking hole 400, passing through the inside of the embedded screw hole 401 and connected to the locking hole 400. The locking rod 402 is screwed and fixedly connected to the locking hole 400. The locking rod 402 passes through the embedded screw hole 401 and is screwed and fixed to the locking hole 400. The rigid constraint of the threaded connection further strengthens the connection strength of the positioning block, counteracts the loosening force generated by high-frequency vibration, ensures that the structure will not fall off during long-term use, provides a continuous and stable limiting effect for the cable, and is suitable for high-vibration industrial environments.

[0023] In this embodiment, preferably, a cable chain plate is provided at the bottom of the second positioning block 101 and the first positioning block 100. The bottom ends of the first positioning block 100 and the second positioning block 101 are symmetrically provided with docking grooves 500. The top of the cable chain plate is symmetrically fixed with docking blocks 501. The docking blocks 501 are engaged with the docking grooves 500. Limiting grooves 502 are symmetrically provided on both sides of the docking blocks 501. Limiting buckles 503 are symmetrically fixed on both sides of the inner wall of the docking groove 500. The limiting buckles 503 are engaged with the limiting grooves 502. The docking groove 500 is engaged with the docking blocks 501 of the cable chain plate. With the lateral constraint of the limiting buckles 503 and the limiting grooves 502, the positioning component and the cable chain are accurately fixed, the cable is limited within the preset trajectory of the cable chain, the cable is prevented from directly rubbing against the inner wall of the cable chain, and the positioning component is prevented from sliding inside the cable chain, thus improving the safety of system operation.

[0024] In this embodiment, preferably, a T-shaped splicing groove 600 is provided through the outer side of the first positioning block 100, and a T-shaped splicing block 601 is fixed on the outer side of the second positioning block 101. The sliding insertion of the T-shaped splicing groove 600 and the T-shaped splicing block 601 realizes the standardized splicing of multiple cables, so that multiple cables in the cable chain are arranged in an orderly manner, avoiding wear and signal interference caused by mutual entanglement and compression, optimizing the internal layout of the cable chain, facilitating later inspection and maintenance, and improving the stability of the multi-cable system.

[0025] In this embodiment, preferably, the surface of the cable body 1 is coated with a fire-retardant coating, and the inside of the cable body 1 is provided with a flame-retardant filler strip. The fire-retardant coating is made of base resin. The surface fire-retardant coating blocks high-temperature radiation, and the internal flame-retardant filler strip inhibits the spread of flames. The dual protection significantly improves the cable's high-temperature resistance and fire resistance, enabling it to maintain insulation and structural integrity in high-temperature and open-flame risk scenarios, reducing the probability of fire accidents and expanding the range of applicable environments for the cable.

[0026] The working principle and usage process of this utility model are as follows: When it is necessary to limit the cable assembly inside the cable chain, the semi-circular groove 102 of the first positioning block 100 and the semi-circular groove 102 of the second positioning block 101 are first fitted onto the surface of the cable body 1, so that the ends of the first positioning block 100 and the second positioning block 101 are in contact, so that the connecting block 201 is embedded in the interior of the connecting groove 200, and the locking groove 300 and the buckle 301 are pressed and engaged, thus limiting the cable assembly inside the cable chain. The first positioning block 100 and the second positioning block 101 are positioned together so that the elastic compression block 103 fits against the surface of the cable body 1, and the locking hole 400 is accurately aligned with the embedded screw hole 401. Then, the locking rod 402 passes through the inside of the embedded screw hole 401 and connects to the locking hole 400. Finally, the locking rod 402 is tightened to engage and fix it with the mating groove 500, thus firmly fixing the first positioning block 100 and the second positioning block 101 together. If the cable body 1 is not connected to the equipment, the first positioning block 100 can be fixed together by adjusting the locking rod 402. When the second positioning block 101 is in the assembled state, it can be directly fitted onto the surface of the cable body 1 through the semi-circular groove 102. In cases where disassembly and assembly are required, after the two ends of the cable body 1 have been wired to the equipment, it can be disassembled and snapped onto the surface of the cable body 1. When the first positioning block 100 and the second positioning block 101 are fitted onto the surface of the cable body 1, they can be engaged with the docking block 501 on the drag chain base plate through the docking groove 500 opened at the bottom of the first positioning block 100 and the second positioning block 101. Furthermore, they can be squeezed and engaged through the limiting groove 502 and the limiting buckle 503 to limit the cable on the drag chain for stable use and to prevent the cable from shifting inside the drag chain. When there are multiple cables inside the drag chain, the T-shaped splicing groove 600 opened on the first positioning block 100 of one cable can be slidably inserted into the T-shaped splicing block 601 on another cable to splice and fix the multiple cables together and limit them on the drag chain base plate for stable use.

[0027] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high temperature resistant drag chain cable comprising a cable body (1), characterized in that: The surface of the cable body (1) is provided with a cable and cable chain assembly limiting component. The cable and cable chain assembly limiting component includes a first positioning block (100) disposed on one side of the surface of the cable body (1) and a second positioning block (101) disposed on the other side of the surface of the cable body (1). The second positioning block (101) is attached to the end of the first positioning block (100). The inner sides of the second positioning block (101) and the first positioning block (100) are provided with semi-circular grooves (102). An elastic extrusion block (103) is fixed inside the semi-circular groove (102). The elastic extrusion block (103) is pressed and attached to the surface of the cable body (1).

2. A high temperature resistant cable for use in a drag chain according to claim 1, characterized in that: The second positioning block (101) has symmetrical connecting grooves (200) at both ends, and the first positioning block (100) has symmetrical connecting blocks (201) fixed at its ends. The connecting blocks (201) are engaged with the connecting grooves (200).

3. A high temperature resistant cable for use in a drag chain according to claim 2, characterized in that: The bottom end of the connecting block (201) is provided with a slot (300), and a buckle (301) is fixed inside the connecting slot (200). The buckle (301) engages with the slot (300).

4. The high-temperature resistant drag chain cable according to claim 3, characterized in that: The connecting groove (200) has a locking hole (400) inside. The top of the connecting block (201) has an embedded screw hole (401) through it. The top of the locking hole (400) is provided with a locking rod (402) that passes through the inside of the embedded screw hole (401) and is connected to the locking hole (400). The locking rod (402) is screwed and fixedly connected to the locking hole (400).

5. A high temperature resistant cable for use in a drag chain according to claim 4, characterized in that: The bottom ends of the second positioning block (101) and the first positioning block (100) are provided with drag chain plates. The bottom ends of the first positioning block (100) and the second positioning block (101) are symmetrically provided with docking grooves (500). The top end of the drag chain plate is symmetrically fixed with docking blocks (501). The docking blocks (501) are engaged with the docking grooves (500). The two sides of the docking blocks (501) are symmetrically provided with limiting grooves (502). The two sides of the inner wall of the docking grooves (500) are symmetrically fixed with limiting buckles (503). The limiting buckles (503) are engaged with the limiting grooves (502).

6. A high temperature resistant cable for use in a drag chain according to claim 5, characterized in that: The outer side of the first positioning block (100) is provided with a T-shaped splicing groove (600), and the outer side of the second positioning block (101) is fixed with a T-shaped splicing block (601).

7. A high temperature resistant cable for use in a drag chain according to claim 1, wherein: The surface of the cable body (1) is coated with a fireproof coating, and the interior of the cable body (1) is provided with a flame-retardant filler strip.

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