A magnetically adsorbed cable tray cover
By combining magnetic adsorption design with lifting components, the problem of cumbersome installation of traditional cable tray covers is solved, enabling rapid installation and disassembly, and improving sealing and heat dissipation performance to ensure the safe and stable operation of cables.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN ZHENZHONG TECH CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-03
AI Technical Summary
The installation and removal of traditional cable tray covers is cumbersome, time-consuming, and labor-intensive, affecting work efficiency and making it difficult to achieve good sealing and heat dissipation performance.
The design employs magnetic adsorption, utilizing the adsorption effect between a permanent magnet plate and a magnetic block, combined with a lifting assembly and a spring telescopic rod, to achieve quick installation and removal of the cover plate. Sealing and heat dissipation performance are improved through sealing rubber gaskets and heat-conducting plates.
It enables rapid installation and removal of the cover plate, improving construction efficiency and reducing labor intensity. At the same time, it provides good sealing, rainproof and heat dissipation performance, extends the service life of the cable and improves safety.
Smart Images

Figure CN224459115U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cover plate fixing technology, and in particular to a magnetic adsorption type cable tray cover plate. Background Technology
[0002] Cable trays are a type of continuous, rigid structure consisting of trays, straight sections of ladders, bends, accessories, and supports. They are widely used in power and telecommunications industries. Cable tray covers, as an important component of the cable tray, cover the tray and primarily protect the cables, preventing dust and debris from falling in and avoiding accidental contact with the cables, thus ensuring their safe and stable operation.
[0003] However, traditional cable tray covers mostly use bolt fixing, which requires tools to tighten each bolt individually during installation. This process is cumbersome, time-consuming, and labor-intensive. Furthermore, when the cover needs to be disassembled for later maintenance, it is also necessary to operate on numerous bolts, resulting in low efficiency and affecting work progress. In view of this, this application proposes a magnetic adsorption type cable tray cover. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a magnetically adsorbed cable tray cover.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A magnetically adsorbed cable tray cover includes a cable tray body. A U-shaped cover is installed on the top surface of the cable tray body. Multiple first spring telescopic rods are installed on both outer sides of the U-shaped cover. A magnetic block is installed at the other end of each first spring telescopic rod. Multiple slots are opened on both outer sides of the cable tray body, and each magnetic block is inserted into a corresponding slot. A movable plate is connected to the bottom surface of the U-shaped cover via a lifting assembly. Two permanent magnet plates are symmetrically installed on the bottom surface of the movable plate, and the outer side of each permanent magnet plate has the opposite magnetism to the corresponding magnetic block.
[0007] Preferably, the lifting assembly includes a telescopic sleeve, which is fixedly installed on the top wall of the U-shaped cover plate. An extension block is slidably connected inside the telescopic sleeve, and the bottom end of the extension block is fixedly installed on the top surface of the movable plate. A threaded rod is rotatably connected to the top surface of the U-shaped cover plate, and the threaded rod is located inside the telescopic sleeve and threadedly connected to the extension block. A limit component is installed on the top surface of the U-shaped cover plate, and the limit component restricts the rotation of the threaded rod.
[0008] Preferably, the limiting component includes a fixing ring, which is fixedly installed on the top surface of the U-shaped cover plate. Multiple limiting grooves are equidistantly opened on the outer circumference of the fixing ring. An end cap is installed at the top of the threaded rod. A rotating ring is vertically rotatably connected to the top surface of the end cap. A third spring telescopic rod is installed on the outer side of the rotating ring. The fixed end of the third spring telescopic rod is installed on the outer side of the rotating ring, and the telescopic end of the third spring telescopic rod is engaged in the corresponding limiting groove. A handle is fixedly installed on the outer side of the telescopic end of the third spring telescopic rod.
[0009] Preferably, two sealing rubber pads are symmetrically installed on the bottom surface of the movable plate, and each sealing rubber pad abuts against the top surface of the cable tray body.
[0010] Preferably, a plurality of second spring telescopic rods are symmetrically installed on the bottom surface of the movable plate, and an arc-shaped plate is installed at the bottom end of each second spring telescopic rod.
[0011] Preferably, multiple rainproof and ventilation grilles are installed on both outer sides of the U-shaped cover plate, and multiple heat-conducting plates are symmetrically installed on the top surface of the movable plate.
[0012] This utility model has the following beneficial effects:
[0013] 1. This utility model achieves rapid installation and disassembly of the U-shaped cover plate and the cable tray body through devices such as lifting components, first spring telescopic rod, magnetic block, slot, and moving plate. During installation, the lifting components drive the moving plate to descend, and the permanent magnet plate attracts the magnetic block to insert it into the slot, thus completing the installation. During disassembly, the operation is reversed, and the magnetic block is reset by the first spring telescopic rod to separate the parts. No bolts or other complex fasteners are required, which greatly improves construction efficiency and reduces labor intensity.
[0014] 2. This utility model achieves excellent sealing, rainproof, and heat dissipation performance through devices such as sealing rubber gaskets, rainproof ventilation grilles, and heat-conducting plates. The sealing rubber gaskets fit tightly against the cable tray body under the action of the moving plate, effectively blocking dust and rainwater from entering. The rainproof ventilation grilles ensure ventilation and heat dissipation while preventing rainwater from splashing in, and the heat-conducting plates quickly conduct heat from the cables. The three work together to ensure a stable internal environment and extend the service life of the cables.
[0015] 3. This utility model achieves buffer protection and neat arrangement of cables through devices such as the second spring telescopic rod and the arc plate. The arc plate can provide flexible support for the arranged cables under the action of the spring telescopic rod. When subjected to external impact, the spring telescopic rod absorbs energy and reduces the damage of vibration to the cables. At the same time, the constraint effect of the arc plate prevents the cables from being scattered, improving the overall aesthetics and safety of the cable tray. Attached Figure Description
[0016] Figure 1This is a schematic diagram of the structure of a magnetically adsorbed cable tray cover proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of the slot opening structure of a magnetic adsorption type cable tray cover proposed in this utility model.
[0018] Figure 3 This is a schematic diagram of the lifting assembly structure of a magnetic adsorption type cable tray cover proposed in this utility model.
[0019] Figure 4 This is a schematic diagram of the limiting component structure of a magnetic adsorption type cable tray cover proposed in this utility model.
[0020] In the diagram: 1. Cable tray body; 2. U-shaped cover plate; 3. Rainproof and ventilation grille; 4. First spring telescopic rod; 5. Moving plate; 6. Second spring telescopic rod; 7. Arc plate; 8. Permanent magnet plate; 9. Sealing rubber gasket; 10. Heat-conducting plate; 11. Slot; 12. Magnetic block; 13. Extension block; 14. Telescopic sleeve; 15. Threaded rod; 16. Fixing ring; 17. Limiting groove; 18. End cap; 19. Rotating ring; 20. Third spring telescopic rod; 21. Handle. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] This utility model provides a technical solution: such as Figure 1-4 As shown, a magnetically adsorbed cable tray cover includes a cable tray body 1. A U-shaped cover 2 is installed on the top surface of the cable tray body 1. Multiple first spring telescopic rods 4 are installed on both outer sides of the U-shaped cover 2. A magnetic block 12 is installed at the other end of each first spring telescopic rod 4. Multiple slots 11 are opened on both outer sides of the cable tray body 1, and each magnetic block 12 is inserted into the corresponding slot 11. A movable plate 5 is connected to the bottom surface of the U-shaped cover 2 through a lifting assembly. Two permanent magnet plates 8 are symmetrically installed on the bottom surface of the movable plate 5, and the outer side of each permanent magnet plate 8 has the opposite magnetism to the corresponding magnetic block 12.
[0023] During installation, the first spring telescopic rod 4 is aligned with the slot 11 to complete the positioning of the U-shaped cover plate 2 and the cable tray body 1. The movable plate 5 can be adjusted downward by the lifting assembly, and the magnetic block 12 is attracted by the permanent magnet plate 8, thereby driving the first spring telescopic rod 4 to stretch the spring, so that the magnetic block 12 at one end of the first spring telescopic rod 4 is inserted into the slot 11, completing the quick positioning of the U-shaped cover plate 2 and the cable tray body 1.
[0024] Furthermore, the lifting assembly includes a telescopic sleeve 14, which is fixedly installed on the top wall of the U-shaped cover plate 2. An extension block 13 is slidably connected inside the telescopic sleeve 14, and the bottom end of the extension block 13 is fixedly installed on the top surface of the moving plate 5. A threaded rod 15 is rotatably connected to the top surface of the U-shaped cover plate 2, and the threaded rod 15 is located inside the telescopic sleeve 14 and is threadedly connected to the extension block 13. A limit assembly is installed on the top surface of the U-shaped cover plate 2, and the limit assembly restricts the rotation of the threaded rod 15. It should be noted that the extension block 13 is square, and is limited by the square cavity inside the telescopic sleeve 14, preventing it from rotating and thus only allowing linear sliding.
[0025] Furthermore, the limiting component includes a fixing ring 16, which is fixedly installed on the top surface of the U-shaped cover plate 2. Multiple limiting grooves 17 are equidistantly opened on the outer circumference of the fixing ring 16. An end cap 18 is installed at the top of the threaded rod 15. A rotating ring 19 is vertically rotatably connected to the top surface of the end cap 18. A third spring telescopic rod 20 is installed on the outer side of the rotating ring 19. The fixed end of the third spring telescopic rod 20 is installed on the outer side of the rotating ring 19, and the telescopic end of the third spring telescopic rod 20 is engaged in the corresponding limiting groove 17. A handle 21 is fixedly installed on the outer side of the telescopic end of the third spring telescopic rod 20, which facilitates pulling the third spring telescopic rod 20.
[0026] Furthermore, two sealing rubber pads 9 are symmetrically installed on the bottom surface of the movable plate 5, and each sealing rubber pad 9 abuts against the top surface of the cable tray body 1 to improve the sealing performance between the U-shaped sealing cover 2 and the cable tray body 1.
[0027] Furthermore, multiple second spring telescopic rods 6 are symmetrically installed on the bottom surface of the movable plate 5. Each second spring telescopic rod 6 has an arc-shaped plate 7 installed at its bottom end. The second spring telescopic rod 6 and the arc-shaped plate 7 provide buffering to reduce the impact of external impacts on the cable. The arc-shaped plate 7 can also adjust the cable position to ensure that the cable is neatly arranged.
[0028] Furthermore, multiple rainproof ventilation grilles 3 are installed on both outer sides of the U-shaped cover plate 2, and multiple heat-conducting plates 10 are symmetrically installed on the top surface of the movable plate 5. The heat generated by the cable is conducted to the U-shaped cover plate 2 through the heat-conducting plates 10 and discharged through the rainproof ventilation grilles 3 to avoid excessive internal temperature.
[0029] This utility model provides a magnetic adsorption type cable tray cover, and its specific working principle is as follows: First, when installing the cover, the U-shaped cover 2 is placed above the cable tray body 1, so that the first spring telescopic rod 4 is precisely aligned with the slot 11 to complete the initial positioning. Then, the handle 21 is pulled to disengage the third spring telescopic rod 20 from the limiting groove 17, thereby releasing the limitation on the threaded rod 15. The end cover 18 is rotated clockwise to drive the threaded rod 15 to rotate. Since the extension block 13 is restricted by the square cavity of the telescopic sleeve 14 and cannot rotate, it can only slide linearly downward along the telescopic sleeve 14, thereby driving the moving plate 5 to descend.
[0030] As the movable plate 5 moves down, the permanent magnet plate 8 gradually approaches the magnetic block 12. Utilizing the strong attraction between opposite magnetic poles, the magnetic block 12 is pulled into the slot 11. The spring of the first spring telescopic rod 4 is stretched. When the permanent magnet plate 8 and the magnetic block 12 are in place, the sealing rubber pad 9 on the bottom surface of the movable plate 5 also fits tightly against the top surface of the cable tray body 1, achieving a good seal.
[0031] At this time, release the handle 21, and the third spring telescopic rod 20 will re-enter the limiting groove 17 under the action of the spring force, locking the threaded rod 15, and completing the stable connection between the U-shaped cover plate 2 and the cable tray body 1.
[0032] During disassembly, pull the handle 21 in the opposite direction, rotate the end cover 18 to raise the moving plate 5, separate the permanent magnet plate 8 from the magnetic block 12, and the first spring telescopic rod 4 will spring back, making it easy to remove the cover plate.
[0033] In addition, during operation, the heat generated by the cable is transferred to the U-shaped cover plate 2 through the heat conduction plate 10 and discharged through the rainproof ventilation grille 3. Meanwhile, the second spring telescopic rod 6 and the arc plate 7 provide buffer protection for the cable at all times, ensuring the safe operation of the cable.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A magnetically adsorbed cable tray cover, comprising a cable tray body (1), characterized in that, The top surface of the cable tray body (1) is equipped with a U-shaped cover plate (2). Multiple first spring telescopic rods (4) are installed on both sides of the U-shaped cover plate (2). A magnetic block (12) is installed at the other end of each first spring telescopic rod (4). Multiple slots (11) are opened on both sides of the cable tray body (1), and each magnetic block (12) is inserted into the corresponding slot (11). The bottom surface of the U-shaped cover plate (2) is connected to a moving plate (5) through a lifting assembly. Two permanent magnet plates (8) are symmetrically installed on the bottom surface of the moving plate (5), and the outer side of each permanent magnet plate (8) is opposite to the magnetic block (12).
2. The magnetic adsorption type cable bridge cover plate according to claim 1, characterized in that, The lifting assembly includes a telescopic sleeve (14), which is fixedly installed on the top wall of the U-shaped cover plate (2). An extension block (13) is slidably connected inside the telescopic sleeve (14), and the bottom end of the extension block (13) is fixedly installed on the top surface of the moving plate (5). A threaded rod (15) is rotatably connected to the top surface of the U-shaped cover plate (2), and the threaded rod (15) is located inside the telescopic sleeve (14). The threaded rod (15) is threadedly connected to the extension block (13). A limit assembly is installed on the top surface of the U-shaped cover plate (2), and the limit assembly restricts the rotation of the threaded rod (15).
3. The magnetic adsorption type cable bridge cover plate according to claim 2, characterized in that, The limiting component includes a fixing ring (16), which is fixedly installed on the top surface of the U-shaped cover plate (2). The outer circumference of the fixing ring (16) is provided with multiple limiting grooves (17) at equal intervals. The top end of the threaded rod (15) is equipped with an end cap (18). The top surface of the end cap (18) is vertically rotatably connected to a rotating ring (19). A third spring telescopic rod (20) is installed on the outer side of the rotating ring (19). The fixed end of the third spring telescopic rod (20) is installed on the outer side of the rotating ring (19). The telescopic end of the third spring telescopic rod (20) is locked in the corresponding limiting groove (17). A handle (21) is fixedly installed on the outer side of the telescopic end of the third spring telescopic rod (20).
4. The magnetic adsorption type cable tray cover plate according to claim 3, characterized in that, Two sealing rubber pads (9) are symmetrically installed on the bottom surface of the movable plate (5), and each sealing rubber pad (9) abuts against the top surface of the cable tray body (1).
5. The magnetic adsorption type cable tray cover plate according to claim 4, characterized in that, The bottom surface of the movable plate (5) is symmetrically equipped with a plurality of second spring telescopic rods (6), and an arc plate (7) is installed at the bottom end of each second spring telescopic rod (6).
6. The magnetic adsorption type cable tray cover plate according to claim 5, characterized in that, Multiple rainproof and ventilation grilles (3) are installed on both sides of the U-shaped cover plate (2), and multiple heat-conducting plates (10) are symmetrically installed on the top surface of the movable plate (5).