Dust-free drag chain

Abstract

The utility model relates to a dust-free drag chain, which belongs to the technical field of dust-free drag chains and comprises a drag chain body, double rows of composite locking buckles mounted at two ends of the drag chain body and fixing mechanisms mounted at two ends of the drag chain body. A first open hole is formed between the middle parts of the first zipper belt and the second zipper belt; according to the utility model, through the arrangement of the clamping blocks and the clamping grooves in the double-row composite locking buckles, the two ends of the dust-free drag chain can be conveniently and rapidly opened to place a cable with a connector terminal into the open hole, so that wiring can be rapidly realized, the connector terminal does not need to be disassembled and assembled back and forth, and the rotating rod can be driven to rotate by rotating the adjusting screw, so that wiring is more convenient. And after rotation, the rotating rod is screwed into the U-shaped buckle to fully fix the two ends of the dust-free drag chain, so that the two ends of the drag chain cannot be broken along with movement.

Description

Technical Field

[0001] This utility model belongs to the field of dust-free cable chain technology, specifically relating to a dust-free cable chain. Background Technology

[0002] Cleanroom cable chains, also known as dustproof cable chains, cleanroom cable assemblies, and cleanroom cable drag chains, are a general term for transmission components used in cleanrooms to support electrical connections and loads. They are wear-resistant, do not release gas, do not accumulate dust, and are resistant to acids, alkalis, and aging. Currently, most cleanroom cable chains are non-openable. However, in actual customer installations, the large size of the cable terminals makes it difficult to directly insert them into the open holes of the cleanroom cable chain. The connectors must be removed, threaded through the holes, and then reconnected, which is cumbersome, costly, and inefficient.

[0003] For example, patent CN221704314U discloses an "open-type dust-free cable chain, comprising two chain belts placed vertically, each chain belt including a chain piece, and two placement channels extending at least along the length direction between the two chain pieces at intervals along their width direction; by dividing the space between the two vertically placed chain pieces into two placement channels, multiple different cables can be protected separately, thereby improving the performance of the cable chain. Secondly, it can also avoid the situation where multiple cables are placed in a cable chain containing only one placement channel, which is prone to entanglement and knotting."

[0004] Although the existing technology can simultaneously place and protect multiple different cables, and both ends of the cable chain can be opened to install cables, the connection of the slots and blocks makes it difficult to fully fix the two ends of the cleanroom cable chain after it is closed. This may cause the two ends of the cleanroom cable chain to break apart during subsequent reciprocating motion. In this regard, this application proposes a cleanroom cable chain. Utility Model Content

[0005] The purpose of this invention is to provide a dust-free cable chain to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A dust-free cable chain includes a cable chain body, double-row composite locking buckles installed at both ends of the cable chain body, and fixing mechanisms installed at both ends of the cable chain body. The cable chain body includes a first chain belt and a second chain belt placed vertically and mating with each other. A first open hole is provided between the middle of the first chain belt and the second chain belt. The fixing mechanism includes U-shaped buckles fixed at both ends of the first chain belt, adjusting screws rotatably connected to both ends of the second chain belt, and a rotating rod fixed at the screw end of the adjusting screw and snapping into the corresponding U-shaped buckle after rotation. The nut edge of the adjusting screw has several positioning notches. A rubber block that fits into the positioning notch is fixed inside the second chain belt.

[0008] As a further optimization of this utility model, the double-row composite locking buckle includes slots formed at both ends of the first chain belt and the second chain belt, and locking blocks fixedly disposed at both ends of the first chain belt and the second chain belt, wherein the locking blocks are engaged in the slots.

[0009] As a further optimization of this utility model, a groove is provided on the side of the second chain belt away from the first chain belt, the nut of the adjusting screw is movably disposed in the groove of the second chain belt, and the rubber block is fixedly connected to the side wall of the groove of the second chain belt.

[0010] As a further optimization of this utility model, both sides of the first and second chain belts are fixedly provided with low-friction layers.

[0011] As a further optimization of this utility model, a second open hole is provided between the middle of the first chain and the second chain.

[0012] As a further optimization of this utility model, a closed hole is provided between the middle of the first chain and the second chain, and the closed hole is located between the first open hole and the second open hole.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The double-row composite locking buckle with internal locking blocks and slots allows for easy and quick opening of both ends of the cleanroom cable chain, enabling the insertion of cables with connector terminals into the open holes for rapid wiring without the need for repeated disassembly and reassembly of connector terminals. Furthermore, rotating the adjusting screw drives the rotating rod to rotate, which then screws into the U-shaped buckle to fully secure both ends of the cleanroom cable chain, ensuring that the ends of the cable chain will not break apart during movement.

[0015] 2. The rubber block insertion positioning notch can fix the rotating adjusting screw, thereby improving the reliability and stability of fixing both ends of the dust-free cable chain. The first and second open holes can accommodate cables with larger diameters or wire terminals, while the closed holes can accommodate cables with smaller diameters without wire terminals, thus protecting multiple different cables. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;

[0017] Figure 2 This is a utility model Figure 1 Enlarged view of the A-structure;

[0018] Figure 3 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model;

[0019] Figure 4This is a schematic diagram of the overall structure of Embodiment 3 of this utility model.

[0020] In the diagram: 1. First chain belt; 11. Second chain belt; 12. First open hole; 13. Second open hole; 14. Closed hole; 2. Slot; 21. Block; 3. U-shaped buckle; 31. Sink; 32. Adjusting screw; 33. Rotating rod; 34. Positioning notch; 35. Rubber block; 4. Low friction layer. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example 1

[0023] A dust-free cable chain, such as Figure 1-2 As shown, the device includes a cable chain body, a double-row composite locking buckle, and a fixing mechanism. The cable chain body includes a first chain belt 1 and a second chain belt 11 placed vertically and mating together. The first chain belt 1 and the second chain belt 11 can be made of thermoplastic polyurethane rubber (TPU). Low-friction layers 4 are fixedly provided on both sides of the first chain belt 1 and the second chain belt 11. The low-friction layer 4 can be made of expanded polytetrafluoroethylene (e-PTFE), which has stable chemical properties, a low coefficient of friction, and a wide temperature range. This is a publicly available technology that can reduce the surface friction of the first chain belt 1 and the second chain belt 11, thus making it less prone to dust adsorption. The cable chain body and the low-friction layer 4 can be composited by high-temperature pressing. This cleanroom cable chain can be used in cleanrooms and semiconductor manufacturing cleanrooms.

[0024] like Figure 1-2 As shown, the double-row composite locking buckle is installed at both ends of the cable chain body. The double-row composite locking buckle includes a slot 2 opened at both ends of the first chain belt 1 and the second chain belt 11, and a locking block 21 fixed at both ends of the first chain belt 1 and the second chain belt 11. The locking block 21 is engaged in the slot 2. The quick-locking design of the locking block 21 and the slot 2 makes wiring convenient and increases the flexibility of maintenance and replacement of spare parts on site.

[0025] like Figure 1-2 As shown, a first open hole 12 is provided between the middle of the first chain belt 1 and the second chain belt 11. After the double-row composite locking buckles at both ends of the first chain belt 1 and the second chain belt 11 are opened, the cable with external connector terminals can be put into the first open hole 12, so that wiring can be quickly achieved without having to repeatedly disassemble and assemble the connector terminals.

[0026] like Figure 1-2As shown, the fixing mechanism is installed at both ends of the drag chain body. The fixing mechanism includes U-shaped buckles 3 fixed at both ends of the first chain belt 1, adjusting screws 32 rotatably connected to both ends of the second chain belt 11, and rotating rods 33 fixed at the screw end of the adjusting screws 32 and snapped into the corresponding U-shaped buckles 3 after rotation. Several positioning notches 34 are provided at the edge of the nut of the adjusting screws 32. Rubber blocks 35 that are fitted and inserted into the positioning notches 34 are fixed inside the second chain belt 11.

[0027] After rotating the adjusting screw 32 with a screwdriver or other tools, the rotating rod 33 will rotate accordingly. After rotation, the rotating rod 33 can be screwed into the U-shaped buckle 3, so that the adjusting screw 32 and the rotating rod 33 can hook the U-shaped buckle 3 to fully fix the two ends of the cleanroom cable chain. This prevents the double-row composite locking buckle from completely disengaging, thus ensuring that the two ends of the cable chain will not break apart during movement. Furthermore, by inserting the rubber block 35 into the corresponding positioning notch 34, the adjusted screw 32 can be fixed after rotation, thereby improving the reliability and stability of fixing the two ends of the cleanroom cable chain.

[0028] The second chain belt 11 has a recessed groove 31 on the side opposite to the first chain belt 1. The nut of the adjusting screw 32 is movably disposed in the recessed groove 31 of the second chain belt 11. The rubber block 35 is fixedly connected to the side wall of the recessed groove 31 of the second chain belt 11. The screw end of the adjusting screw 32 passes through the second chain belt 11. The second chain belt 11 can hide and limit the nut of the adjusting screw 32 through the recessed groove 31, and the adjusting screw 32 can also support and fix the rubber block 35 through the recessed groove 31.

[0029] Example 2

[0030] like Figure 3 As shown, based on Embodiment 1, this embodiment also discloses that a second open hole 13 is provided between the middle of the first chain belt 1 and the second chain belt 11. After the double-row composite locking buckles at both ends of the dust-free drag chain are opened, cables with larger diameters or with wiring terminals can be placed into the first open hole 12 and the second open hole 13.

[0031] Example 3

[0032] like Figure 4 As shown, based on embodiment 2, this embodiment also discloses a closed hole 14 between the middle of the first chain belt 1 and the second chain belt 11. The closed hole 14 is located between the first open hole 12 and the second open hole 13. Since the two ends of the dust-free cable chain can be opened, but the middle cannot be opened, the closed hole 14 located in the middle of the first chain belt 1 and the second chain belt 11 does not need to be opened, and cables with small diameters and no terminal ends can be placed. Through the structure of the first open hole 12, the second open hole 13 and the closed hole 14, multiple different cables can be placed and protected.

[0033] It should be noted that, during the wiring process of this cleanroom cable chain, the adjusting screw 32 is first vigorously rotated using a screwdriver or other tools, which then drives the rotating rod 33 to rotate. At this time, the rubber block 35 will disengage from the positioning notch 34 inside the rotating adjusting screw 32 under the elastic force. After the rotating rod 33 rotates, it can disengage from the U-shaped buckle 3. Then, the double-row composite locking buckles at both ends of the cleanroom cable chain are opened, so that the locking block 21 disengages from the corresponding slot 2. Then, cables with larger diameters or with terminals can be placed into the first open hole 12 and the second open hole 13. Cables with smaller diameters and without terminals can also be directly inserted into the closed hole 14. The structure of the first open hole 12, the second open hole 13, and the closed hole 14 can place and protect multiple different cables.

[0034] After wiring, the double-row composite locking buckles at both ends of the cleanroom cable chain are closed, so that the locking block 21 is engaged in the corresponding slot 2. Then, the adjusting screw 32 is rotated in the opposite direction to screw the rotating rod 33 into the U-shaped buckle 3, so that the adjusting screw 32 and the rotating rod 33 can hook the U-shaped buckle 3 to fully fix the two ends of the cleanroom cable chain, so that the double-row composite locking buckles cannot be completely disconnected, thus ensuring that the two ends of the cable chain will not break apart during movement. After the adjusting screw 32 is rotated, the rubber block 35 will insert into the corresponding positioning notch 34 to fix the adjusted screw 32 after rotation, thereby improving the reliability and stability of fixing the two ends of the cleanroom cable chain.

[0035] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A dust-free cable chain, comprising a cable chain body, double-row composite locking buckles installed at both ends of the cable chain body, and fixing mechanisms installed at both ends of the cable chain body, wherein the cable chain body comprises a first chain belt (1) and a second chain belt (11) placed vertically and engaging with each other, and a first open hole (12) is provided between the middle portions of the first chain belt (1) and the second chain belt (11), characterized in that: The fixing mechanism includes U-shaped buckles (3) fixed at both ends of the first chain (1), adjusting screws (32) rotatably connected to both ends of the second chain (11), and a rotating rod (33) fixed at the screw end of the adjusting screw (32) and snapped into the corresponding U-shaped buckle (3) after rotation. The nut edge of the adjusting screw (32) is provided with several positioning notches (34), and a rubber block (35) that fits and is inserted into the positioning notch (34) is fixed in the second chain (11).

2. The dust-free cable chain according to claim 1, characterized in that: The double-row composite locking buckle includes slots (2) formed at both ends of the first chain belt (1) and the second chain belt (11), and locking blocks (21) fixed at both ends of the first chain belt (1) and the second chain belt (11). The locking blocks (21) are engaged in the slots (2).

3. The dust-free cable chain according to claim 1, characterized in that: The second chain belt (11) has a groove (31) on the side opposite to the first chain belt (1). The nut of the adjusting screw (32) is movably disposed in the groove (31) of the second chain belt (11). The rubber block (35) is fixedly connected to the side wall of the groove (31) of the second chain belt (11).

4. The dust-free cable chain according to claim 1, characterized in that: Both sides of the first chain belt (1) and the second chain belt (11) are fixedly provided with a low friction layer (4).

5. A dust-free cable chain according to claim 1, characterized in that: A second open hole (13) is provided between the middle of the first chain (1) and the second chain (11).

6. A dust-free cable chain according to claim 5, characterized in that: A closed hole (14) is provided between the middle of the first chain (1) and the second chain (11), and the closed hole (14) is located between the first open hole (12) and the second open hole (13).

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