Multi-cable bundling and fixing device
By using a combination of rubber pads and balls in the multi-cable harness fixing device, combined with the top support assembly and limit assembly of the arc-surface structure, the extrusion and wear problems of the multi-cable harness fixing device in the prior art are solved, and better cable protection and fixing effects are achieved.
Patent Information
- Application Number
- CN202421531301.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-01
AI Technical Summary
Existing multi-cable harness fixing devices are prone to extrusion and wear on the cable.
A multi-cable bundle fixing device is designed, using a combination of rubber pads and balls to reduce surface wear of the cable through rolling friction of the balls, and improve the protection and fixing effect of the cable through the top support and limiting components of the curved structure.
It effectively reduces the hard extrusion of the cable in the duct duct, reduces the surface wear of the cable, and improves the service life and fixing effect of the cable.
Smart Images

Figure CN223023968U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical construction equipment, in particular to a multi-cable bundling and fixing device. Background Art
[0002] During the construction of building electrical engineering, a large number of cables are needed. To ensure the safety of cable use and the cleanliness of the construction site, the cable storage devices of the existing technology are usually used to store the cables. For example, the Chinese utility model patent CN216056081U discloses a multi-cable bundling and fixing device for building electrical construction, including: a fixing mechanism, the fixing mechanism includes a fixing base and a cable fixing groove; a binding mechanism, the binding mechanism includes a first binding plate and a second binding plate; a pressing mechanism, the pressing mechanism includes a connecting frame, a screw rod, and a thrust bearing.
[0003] When the multi-cable bundling and fixing device of the existing technology squeezes the cables to fit against the inner wall of the fixing groove through the binding mechanism, the inner wall of the fixing groove squeezes the cables, and when the cables penetrate through the inner wall of the fixing groove, the fixing groove is likely to cause abrasion to the cables. Therefore, it is necessary to provide a multi-cable bundling and fixing device that can solve the problems that the multi-cable bundling and fixing device of the existing technology is likely to cause extrusion and abrasion to the cables. Summary of the Invention
[0004] The purpose of the utility model is to provide a multi-cable bundling and fixing device that can solve the problems that the multi-cable bundling and fixing device of the existing technology is likely to cause extrusion and abrasion to the cables.
[0005] The utility model is realized as follows:
[0006] A multi-cable bundling and fixing device includes a lower fixing shell, a rubber pad, a ball, an upper fixing shell, a pressing plate, a top support assembly, and a limiting assembly; a plurality of lower cable grooves are formed at intervals on the top of the lower fixing shell, and a rubber pad is arranged in each lower cable groove; a plurality of groups of top support assemblies are respectively arranged in the lower fixing shell, and a plurality of groups of top support assemblies respectively support the bottom of the rubber pad, and a plurality of balls are rollably embedded in the rubber pad; a plurality of upper cable grooves are formed at intervals on the bottom of the upper fixing shell, and the upper fixing shell covers the lower fixing shell so that the upper cable grooves and the lower cable grooves form a circular cable groove; the pressing plate is arranged in the upper cable groove through the limiting assembly, and a rubber pad is also arranged on the concave surface of the arc-shaped pressing plate. When the cable penetrates through the cable groove, it rolls into contact with the ball, and the cable bundle can be clamped in the cable groove by the two rubber pads.
[0007] The supporting assembly includes an arc plate, a first spring, a push block and a second spring; the arc plate has an arc surface structure and is fitted on the bottom of the rubber pad, and one end of the push block has an arc surface structure so that one end of the push block can be slidably supported between the bottom of the arc plate and the bottom plate of the lower fixed shell; the other end of the push block is elastically connected to the side plate of the lower fixed shell through the first spring and the second spring.
[0008] The other end of the push block is connected with a threaded rod, and the end of the threaded rod away from the push block passes through the side plate of the lower fixed shell; a nut matching the threaded rod is rotatably mounted on the outer wall of the side plate of the lower fixed shell, and the threaded rod passes through the nut.
[0009] The limiting assembly includes a lifting rod, a serrated limiting rod, a clamping block and a locking mechanism; the lower end of the lifting rod passes through the top plate of the upper fixed shell and the upper wire harness groove and is fixedly connected to the top of the extrusion plate, and a pair of serrated limiting rods are respectively installed on both side surfaces of the lifting rod, and the serrated limiting rods are evenly distributed with raised serrations; a pair of clamping blocks are respectively movably embedded in the top plate of the upper fixed shell through the locking mechanism, and a pair of clamping blocks can be respectively clamped on a pair of serrated limiting rods, so that the extrusion plate is locked in the upper wire harness groove and pressed against the cable.
[0010] Each group of the locking mechanisms comprises a mounting plate, a spring three and a push-pull rod; a mounting groove is formed in the top plate of the upper fixed shell, so that the mounting plate can be elastically embedded in the mounting groove through the spring three, and the upper end of the mounting plate passes through the mounting groove upward; the card block is in an L-shaped structure, the vertical section of the card block is connected to the mounting plate, and the horizontal section of the card block is located above the top plate of the upper fixed shell and extends to the side of the serrated limit rod; a card tooth is formed at one end of the card block away from the mounting plate, so that the card block can be connected to one of the raised serrated gaps of the serrated limit rod through the matching of the card tooth; the push-pull rod is arranged on the horizontal section of the card block.
[0011] The lifting rod is protruded with a limit strip, which is arranged vertically. The top plate of the upper fixed shell and the upper harness groove respectively form limit grooves, and the limit strip can vertically slide through the limit grooves.
[0012] A mounting frame is arranged at the bottom of the lower fixed shell. The mounting frame is in a "X"-shaped structure. Two ends of the mounting frame are fixedly arranged on the mounting surface.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] 1. Since the utility model is provided with rubber pads and ball bearings, the surfaces of the cables are wrapped by the rubber pads in the lower cable trough and the rubber pads on the pressing plates, reducing the hard extrusion when the cables are threaded and fixed in the cable trough, thus being beneficial to protecting the cables. At the same time, through the uniform arrangement of the ball bearings, the sliding friction between the cables and the rubber pads can be converted into rolling friction by the ball bearings, greatly reducing the frictional force when the cables are threaded and pulled, ensuring the use of the cables, and avoiding the surface wear of the cables to the greatest extent.
[0015] 2. Since the utility model is provided with a top support assembly, the arc-shaped surface structure of the push block provides a pushing and pulling force to the arc plate, enabling the arc plate to push the rubber pad through the mounting frame via the ball bearings, so that the rubber pad can better wrap the lower part and the bottom of the cable, improving the protection and fixing effects on the cable, and being able to adapt to cables of different sizes.
[0016] 3. Since the utility model is provided with a limiting assembly, after the pressing plate is lifted to the proper position, the pressing plate can be locked by the engagement of the teeth with the serrated gaps of the serrated limiting rod, ensuring the height stability of the pressing plate, enabling the pressing plate to better press against the upper part and the top of the cable through the rubber pad, improving the protection and fixing effects on the cable, and being able to adapt to cables of different sizes. Description of the Drawings
[0017] Figure 1 is the perspective view of the multi-cable bundling and fixing device of the utility model;
[0018] Figure 2 is the front sectional view of the multi-cable bundling and fixing device of the utility model;
[0019] Figure 3 is Figure 2 the enlarged schematic view at B in
[0020] Figure 4 is Figure 2 the enlarged schematic view at A in
[0021] Figure 5 is the top view of the top support assembly in the multi-cable bundling and fixing device of the utility model;
[0022] Figure 6 is the perspective view of the locking mechanism in the multi-cable bundling and fixing device of the utility model.
[0023] In the figure, 1. Lower fixed shell; 2. Lower cable trough; 3. Rubber pad; 4. Arc plate; 5. Mounting frame; 6. Ball bearing; 7. First spring; 8. Push block; 9. Threaded rod; 10. Second spring; 11. Upper fixed shell; 12. Upper cable trough; 13. Lifting rod; 14. Serrated limiting rod; 15. Block; 16. Mounting plate; 17. Third spring; 18. Push-pull rod; 19. Limiting strip; 20. Pressing plate; 21. Mounting bracket. Detailed implementation mode
[0024] The following further describes the present utility model in conjunction with the accompanying drawings and specific embodiments.
[0025] Please refer to the attached Figure 1 and the attached Figure 2 and the attached Figure 4 A multi-cable bundling and fixing device includes a lower fixing shell 1, a rubber pad 3, a ball 6, an upper fixing shell 11, a pressing plate 20, a top support assembly and a limiting assembly; several lower cable grooves 2 are formed at intervals on the top of the lower fixing shell 1, and a rubber pad 3 is arranged in each lower cable groove 2; several groups of top support assemblies are respectively arranged in the lower fixing shell 1, several groups of top support assemblies respectively support the bottom of the rubber pad 3, and several balls 6 are rollably installed on the rubber pad 3 through an installation frame 5; several upper cable grooves 12 are formed at intervals on the bottom of the upper fixing shell 11, and the upper fixing shell 11 covers the lower fixing shell 1, so that the upper cable grooves 12 and the lower cable grooves 2 form a circular cable groove; the pressing plate 20 is arranged in the upper cable groove 12 through a limiting assembly, and a rubber pad 3 is also arranged on the concave surface of the arc-shaped pressing plate 20. When the cable passes through the cable groove, it rolls into contact with the ball 6, and the cable bundle can be clamped in the cable groove by two rubber pads 3.
[0026] Through the arrangement of the ball 6, the rolling of the ball 6 can be used to provide rolling friction for the passing of the cable, reduce the direct sliding friction between the surface of the cable and the rubber pad 3, thereby reducing the surface wear of the cable and making it more convenient for the cable to pass through the cable groove.
[0027] Through the arrangement of the rubber pad 3 on the pressing plate 20 and the rubber pad 3 in the lower cable groove 2, the flexibility of the rubber pad 3 can be used to improve the wrapping and protection effect on the cable, reduce the direct hard extrusion on the cable, and avoid cable damage while ensuring the stable passing of the cable.
[0028] Preferably, the cross-sections of the lower cable groove 2 and the upper cable groove 12 both adopt a semi-circular structure slightly larger than the outer diameter of the cable to be set. The lower cable groove 2 and the upper cable groove 12 are arranged in pairs, and the number of the lower cable groove 2 and the upper cable groove 12 can be adaptively adjusted according to actual use requirements. A plurality of sliding groove holes are radially opened on the upper edge of the lower cable groove 2 for slidably installing the installation frame 5 to facilitate the installation of the ball 6 in the rubber pad 3, and a small part of the top surface of the ball 6 is exposed from the rubber pad 3.
[0029] Please refer to the attached Figure 2 and the attached Figure 5, the top support assembly includes an arc plate 4, a first spring 7, a push block 8 and a second spring 10; the arc plate 4 has an arc-shaped structure and is attached to the bottom of the rubber pad 3. One end of the push block 8 has an arc-shaped structure, so that one end of the push block 8 can slide and support between the bottom of the arc plate 4 and the bottom plate of the lower fixed shell 1; the other end of the push block 8 is elastically connected to the side plate of the lower fixed shell 1 through the first spring 7 and the second spring 10.
[0030] Preferably, the cross-section of the arc plate 4 is a semi-circular structure. The inner diameter of the arc plate 4 can be the same as the outer diameter of the lower cable slot 2. The two ends of the arc plate 4 can be movably connected to the inner wall of the lower fixed shell 1 through vertical chutes and sliders, so that the arc plate 4 makes a vertical linear motion under the push of the push block 8 and the limit of the chute sliders. The mounting frame 5 of each ball 6 abuts against the inner wall of the arc plate 4. When the arc plate 4 rises, the mounting frame 5 is pushed radially into the lower cable slot 2 under the guidance of the chute holes. Due to the flexibility of the rubber pad 3, each ball 6 synchronously pushes up the rubber pad 3. The evenly distributed balls 6 cause the rubber pad 3 to produce a relatively uniform deformation, and enable the rubber pad 3 to wrap around the lower part and the bottom of the cable to the greatest extent.
[0031] When the push block 8 is pushed inward or pulled outward, by using the fitting and sliding of the arc-shaped structure, the horizontal movement of the push block 8 is converted into the vertical movement of the arc plate 4, thus realizing the lifting function of the arc plate 4, and further enabling the rubber pad 3 to rise or fall and produce corresponding deformations to adapt to cables of different sizes.
[0032] When the push block 8 is pushed inward, the first spring 7 and the second spring 10 are stretched. When the push block 8 is pulled outward, the first spring 7 and the second spring 10 are compressed. The deformation of the first spring 7 and the second spring 10 can be used to store energy for the reset of the push block 8, and also ensure the reliability of the push block 8 to support the arc plate 4. Preferably, the first spring 7 and the second spring 10 can be arranged vertically. Two first springs 7 are arranged horizontally, and two second springs 10 are arranged horizontally, so that the force on the push block 8 is balanced and stable.
[0033] Please refer to the appendix Figure 2 , the other end of the push block 8 is connected with a threaded rod 9, and the end of the threaded rod 9 away from the push block 8 penetrates through the side plate of the lower fixed shell 1; a nut matching the threaded rod 9 is rotatably installed on the outer wall of the side plate of the lower fixed shell 1 through a rotating bearing, and the threaded rod 9 penetrates through the nut.
[0034] When the nut is rotated, the rotational motion of the nut can be converted into the axial linear motion of the threaded rod 9 through screw thread transmission, so that the threaded rod 9 moves horizontally into the lower fixed shell 1 or horizontally out of the lower fixed shell 1, thereby driving the push block 8 to move horizontally inward or outward. The operation is convenient and labor-saving.
[0035] Please refer to the appendix Figure 1 to the appendix Figure 3The limiting assembly includes a lifting rod 13, a serrated limiting rod 14, a clamping block 15 and a locking mechanism; the lower end of the lifting rod 13 passes through the top plate of the upper fixed shell 11 and the upper cable trough 12 and is fixedly connected to the top of the extrusion plate 20, a pair of serrated limiting rods 14 are respectively installed on the two side surfaces of the lifting rod 13, and the serrated limiting rods 14 are evenly distributed with raised serrations; a pair of clamping blocks 15 are respectively movably embedded in the top plate of the upper fixed shell 11 through the locking mechanism, and a pair of clamping blocks 15 can be respectively clamped on a pair of serrated limiting rods 14, so that the extrusion plate 20 is locked in the upper cable trough 12 and pressed against the cable.
[0036] Manually pulling up or lowering the lifting rod 13 can drive the squeezing plate 20 to rise and fall synchronously, so as to adapt to cables of different sizes and to compress or release the cables. A pair of sawtooth-shaped limit rods 14 rise and fall synchronously with the lifting rod 13, and the pair of sawtooth-shaped limit rods 14 can be locked at a desired height through a locking mechanism by a clamping block 15, thereby locking the squeezing plate 20 at a desired height, so that it can compress the cables.
[0037] Please see attached Figure 3 and attached Figure 6 Each group of the locking mechanisms includes a mounting plate 16, a spring three 17 and a push-pull rod 18; a mounting groove is formed in the top plate of the upper fixed shell 11, so that the mounting plate 16 can be elastically embedded in the mounting groove through the spring three 17, and the upper end of the mounting plate 16 passes through the mounting groove upward; the block 15 is in an L-shaped structure, the vertical section of the block 15 is connected to the mounting plate 16, and the horizontal section of the block 15 is located above the top plate of the upper fixed shell 11 and extends to the side of the serrated limit rod 14; a tooth is formed on one end of the block 15 away from the mounting plate 16, so that the block 15 can be connected to one of the raised serrated gaps of the serrated limit rod 14 through the matching of the tooth; the push-pull rod 18 is arranged on the horizontal section of the block 15.
[0038] When the push-pull rod 18 is pushed manually, the mounting plate 16 and the clamping block 15 can be driven to move synchronously, so that the clamping block 15 moves away from and releases the sawtooth-shaped limiting rod 14 , or the clamping block 15 moves close to and locks the sawtooth-shaped limiting rod 14 .
[0039] When the block 15 releases the sawtooth-shaped limit rod 14, its teeth escape from the raised sawtooth gap of the sawtooth-shaped limit rod 14, and the spring 3 17 is stretched to store force. When the block 15 locks the sawtooth-shaped limit rod 14, its teeth are engaged in the raised sawtooth gap of the sawtooth-shaped limit rod 14, and the spring 3 17 is compressed to store force. The elastic force of the spring 3 17 facilitates the sliding reset of the block 15, and can also ensure the reliable engagement of the teeth in the raised sawtooth gap.
[0040] Please see attached Figure 2, a limiting strip 19 is convexly arranged on the lifting rod 13. The limiting strip 19 is arranged vertically. Limiting grooves are respectively formed on the top plate of the upper fixed shell 11 and the upper wire trough 12. The limiting strip 19 can vertically slide through the limiting grooves.
[0041] The limiting grooves are used to guide and limit the lifting of the limiting strip 19, so as to control the vertical lifting movement of the lifting rod 13 through the limiting strip 19, and further ensure that the pressing plate 20 can vertically press the cable, which is beneficial to improving the clamping stability of the cable.
[0042] Please refer to the appendix Figure 1 and the appendix Figure 2 , an installation frame 21 is provided at the bottom of the lower fixed shell 1. The installation frame 21 is in a U-shaped structure. Both ends of the installation frame 21 are fixedly arranged on the installation surface through bolts via bolt holes.
[0043] Through the setting of the installation frame 21, the whole device can be fixed on the installation surface such as the ground, which is convenient for the layout and use of the cable. At the same time, by selecting the installation frame 21 with a corresponding height according to the use requirements, the cable can be installed at a certain height, so as to be more convenient for the use of the cable and improve the use safety.
[0044] Please refer to the appendix Figure 1 to the appendix Figure 6 , the using method and working principle of the utility model are as follows:
[0045] According to the use requirements of the cable for building electrical construction, both ends of the installation frame 21 are fixedly installed on the installation surface such as the ground through four bolts via bolt holes. The lower fixed shell 1 and the upper fixed shell 11 can be fixedly connected by bolts.
[0046] When threading the cable, the cable is threaded through the wire trough formed by the lower wire trough 2 and the upper wire trough 12. The cable slides on the rubber pad 3 of the lower wire trough 2 through the ball 6, converting the sliding friction into rolling friction, reducing the resistance and surface wear of the cable threading. When using the cable, the cable can be directly pulled. The ball 6 provides guidance and auxiliary sliding for the pulling of the cable, and can effectively reduce the direct wear on the surface of the cable.
[0047] When not using the cable, turn the nut, and through the screw thread drive, the threaded rod 9 moves downward inside the fixing shell 1, synchronously pushing the push block 8 towards the arc plate 4, so that the arc surface structure of the push block 8 pushes the arc plate 4 upward, thereby making the rubber pad 3 move upward and support against the bottom and lower part of the cable. Pull the push rod 18 by hand, so that the clamping block 15 moves away from the serrated limiting rod 14, releasing the restriction on the lifting rod 13; at this time, the mounting plate 16 moves synchronously with the clamping block 15 and compresses the third spring 17. Move the lifting rod 13 downward, and under the guiding and limiting of the limiting strip 19 and the limiting groove, the pressing plate 20 moves vertically downward and presses on the cable. The cable is clamped by the two rubber pads 3 and stably arranged in the cable trough. Release the push rod 18, and under the elastic force of the third spring 17, the mounting plate 16 is reset. The mounting plate 16 drives the clamping block 15 to move towards the serrated limiting rod 14, so that the teeth of the clamping block 15 are matched and clamped into the convex serrated gap at the corresponding height of the serrated limiting rod 14, locking the pressing plate 20, thereby ensuring that the pressing plate 20 presses on the cable at an appropriate height and will not cause excessive extrusion of the cable.
[0048] The above are only the preferred embodiments of the present invention and are not used to limit the protection scope of the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A multi-cable bundling and fixing device, characterized in that: The invention comprises a lower fixed shell (1), a rubber pad (3), a ball bearing (6), an upper fixed shell (11), an extrusion plate (20), a support assembly and a limit assembly; a plurality of lower cable ducts (2) are formed at intervals on the top of the lower fixed shell (1), and a rubber pad (3) is arranged in each lower cable duct (2); a plurality of groups of support assemblies are respectively arranged in the lower fixed shell (1), and a plurality of groups of support assemblies are respectively supported on the bottom of the rubber pad (3), and a plurality of ball bearings (6) can be rotatably embedded on the rubber pad (3); A plurality of upper harness grooves (12) are formed at intervals at the bottom of the shell (11); the upper fixed shell (11) covers the lower fixed shell (1), so that the upper harness grooves (12) and the lower harness grooves (2) form a circular harness groove; the extrusion plate (20) is arranged in the upper harness groove (12) through a limit assembly, and a rubber pad (3) is also provided on the inner concave surface of the extrusion plate (20) with an arc surface structure. When the cable passes through the harness groove, it rolls and contacts with the ball bearing (6), and the wire harness can be clamped in the harness groove through the two rubber pads (3).
2. The multi-cable bundling and fixing device according to claim 1 is characterized in that: The supporting assembly comprises an arc plate (4), a spring 1 (7), a push block (8) and a spring 2 (10); the arc plate (4) is in an arc surface structure and is arranged in close contact with the bottom of the rubber pad (3); one end of the push block (8) is in an arc surface structure so that one end of the push block (8) can be slidably supported between the bottom of the arc plate (4) and the bottom plate of the lower fixed shell (1); the other end of the push block (8) is elastically connected to the side plate of the lower fixed shell (1) through the spring 1 (7) and the spring 2 (10).
3. The multi-cable bundling and fixing device according to claim 2 is characterized in that: The other end of the push block (8) is connected to a threaded rod (9), and the end of the threaded rod (9) away from the push block (8) passes through the side plate of the lower fixed shell (1); a nut matching the threaded rod (9) is rotatably mounted on the outer wall of the side plate of the lower fixed shell (1), and the threaded rod (9) passes through the nut.
4. The multi-cable bundling and fixing device according to claim 1 is characterized in that: The limiting assembly comprises a lifting rod (13), a sawtooth limiting rod (14), a clamping block (15) and a locking mechanism; the lower end of the lifting rod (13) passes through the top plate of the upper fixed shell (11) and the upper harness groove (12) and is fixedly connected to the top of the extrusion plate (20); a pair of sawtooth limiting rods (14) are respectively installed on the two side surfaces of the lifting rod (13), and the sawtooth limiting rods (14) are evenly distributed with protruding saw teeth; A pair of clamping blocks (15) are respectively movably embedded in the top plate of the upper fixed shell (11) through a locking mechanism, and the pair of clamping blocks (15) can be respectively clamped on a pair of sawtooth-shaped limiting rods (14), so that the extrusion plate (20) is locked in the upper cable duct (12) and pressed against the cable.
5. The multi-cable bundling and fixing device according to claim 4 is characterized in that: Each group of the locking mechanisms comprises a mounting plate (16), a spring three (17) and a push-pull rod (18); a mounting groove is formed in the top plate of the upper fixed shell (11), so that the mounting plate (16) can be elastically embedded in the mounting groove through the spring three (17), and the upper end of the mounting plate (16) passes through the mounting groove upward; the clamping block (15) is in an L-shaped structure, the vertical section of the clamping block (15) is connected to the mounting plate (16), and the horizontal section of the clamping block (15) is located above the top plate of the upper fixed shell (11) and extends to the side of the sawtooth-shaped limiting rod (14); a clamping tooth is formed at one end of the clamping block (15) away from the mounting plate (16), so that the clamping block (15) can be clamped into one of the raised sawtooth gaps of the sawtooth-shaped limiting rod (14) through the matching of the clamping teeth; the push-pull rod (18) is arranged on the horizontal section of the clamping block (15).
6. The multi-cable bundling and fixing device according to claim 4 is characterized in that: A limit strip (19) is protruded on the lifting rod (13), and the limit strip (19) is arranged vertically. Limit slots are respectively formed on the top plate of the upper fixed shell (11) and the upper harness groove (12), and the limit strip (19) can vertically slide through the limit slot.
7. The multi-cable bundling and fixing device according to any one of claims 1 to 3, characterized in that: A mounting frame (21) is provided at the bottom of the lower fixed shell (1), the mounting frame (21) is in a "X"-shaped structure, and both ends of the mounting frame (21) are fixedly arranged on a mounting surface.
Citation Information
Patent Citations
Multi-cable bundling and fixing device for building electrical construction
CN216056081U
Cited By
High-altitude construction split-bearing safety hanging hoist
CN122504344A