Cable tray installation locking device
By connecting the cable tray body and the cover plate with a snap-fit assembly, the problems of inconvenient installation and difficulty in disassembling rusted screws under the traditional screw fastening method are solved, realizing the rapid installation and disassembly of cable trays and improving construction efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN ZHONGCHENG SIDIAN TECH CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-02
AI Technical Summary
In traditional cable tray systems, the connection between the tray body and the cover plate is fastened with screws, which makes installation cumbersome and inconvenient. It is especially inefficient in confined spaces or when working at heights, and the metal screws are prone to rust and difficult to disassemble.
The cable tray body and the cover plate are connected by two snap-fit components, including a fixed plate, a rotating rod, a snap-fit rod, a fixed rod, a plate groove, a snap-fit plate, an insert rod, a fixed block, a sliding groove, a guide plate, a guide groove, a guide post, a vertical groove, an unlocking plate, and a spring. This combination achieves double snap-fit, improving stability and convenience.
It enables rapid installation and disassembly between the cable tray body and the cover plate, improves construction efficiency, avoids the problem of difficult disassembly caused by rusted screws, and enhances the stability of the locking device.
Smart Images

Figure CN224319027U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable tray installation technology, specifically a cable tray installation locking device. Background Technology
[0002] Cable trays are metal or non-metal structures used to support, fix, and protect cables, and are widely used in power, telecommunications, and construction industries. They consist mainly of trays, ladders, or troughs, and can accommodate multiple cables in layers, providing load-bearing, protection, and heat dissipation functions. They are classified by material (steel, aluminum alloy, fiberglass, etc.) and by structure (tray type, ladder type, trough type, etc.) to suit different application scenarios.
[0003] However, in traditional cable tray systems, the connection between the tray body and the cover plate is generally fastened with conventional screws. The screw installation process is cumbersome, requiring the use of special tools to tighten each screw individually. This is extremely inconvenient when working in confined spaces or at heights, seriously affecting construction efficiency. Furthermore, since cable trays are often used in humid and corrosive environments, ordinary metal screws are prone to rusting, making them difficult to disassemble during later maintenance, and sometimes even causing the screws to break. To address these issues, the inventors have proposed a cable tray installation locking device to solve these problems. Utility Model Content
[0004] To address the inconvenience of connecting the cable tray body and the cover plate using screws, this utility model aims to provide a cable tray installation locking device.
[0005] To solve the above technical problems, the present invention adopts the following technical solution: a cable tray installation locking device, including a cable tray body, the top of the cable tray body is covered with a cover plate, and the cable tray body and the cover plate are connected by a snap-fit component one and a snap-fit component two;
[0006] The snap-fit assembly includes two fixing plates, which are fixedly connected to the side of the cable tray body. A rotating rod is rotatably connected between the two fixing plates. A snap-fit rod is rotatably connected to the side of the rotating rod near the fixing plate. A fixing rod is fixedly connected to the side of the cover plate near the snap-fit rod. The snap-fit rod is snapped into the fixing rod.
[0007] Preferably, the second snap-fit assembly includes a slot, which is formed inside the fixed plate. Two symmetrically distributed snap-fit plates are slidably snapped into the slot. A rod is fixedly connected to the side of each snap-fit plate that is far from each other. A fixing block is fixedly connected to one side of the cable tray body located on the fixed plate. An insertion hole is formed on the fixing block, and the rod is movably inserted into the insertion hole. A sliding groove is formed inside the fixed plate near the slot. Two symmetrically distributed guide plates are slidably snapped into the sliding groove. Each guide plate has a guide groove. An unlocking plate is slidably snapped into one side of the fixed plate. Two guide posts are fixedly connected to one side of the unlocking plate. Two vertical grooves are formed on the side of the fixed plate near the unlocking plate. The guide posts are movably snapped into the vertical grooves and guide grooves. A spring is fixedly connected between the two snap-fit plates.
[0008] Preferably, the bottom of the fixing plate is sloped on the side closest to the main body of the cable tray.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0010] Through the cooperation between the fixed plate, rotating rod, snap-fit rod, and fixing rod, the snap-fit rod is fitted onto the bottom outer side of the fixing rod. Then, the fixing plate is rotated downwards to make it vertically downwards, thereby initially fixing the relative position between the cable tray body and the cover plate. Through the cooperation between the plate groove, snap-fit plate, insert rod, fixing block, insertion hole, sliding groove, guide plate, guide groove, guide post, vertical groove, unlocking plate, and spring, the ends of the two insert rods away from the snap-fit plate are respectively inserted into the corresponding insertion holes, thereby fixing the rotation of the fixing plate and realizing double snap-fit. This further improves the stability of the locking device, makes installation and disassembly convenient and quick, and further improves the assembly efficiency of the cable tray. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 This is a partial cross-sectional view of the present invention.
[0014] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.
[0015] Figure 4 This is a schematic diagram of the partially disassembled structure of this utility model.
[0016] In the diagram: 1. Cable tray body; 2. Cover plate; 3. Snap-fit assembly one; 31. Fixing plate; 32. Rotating rod; 33. Snap-fit rod; 34. Fixing rod; 4. Snap-fit assembly two; 41. Plate groove; 42. Snap-fit plate; 43. Insert rod; 44. Fixing block; 45. Insertion hole; 46. Slide groove; 47. Guide plate; 48. Guide groove; 49. Guide post; 410. Vertical groove; 411. Unlocking plate; 412. Spring; 5. Inclined surface. Detailed Implementation
[0017] 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.
[0018] Example: Figures 1-4 As shown, this utility model provides a cable tray installation locking device, including a cable tray body 1, a cover plate 2 covering the top of the cable tray body 1, and the cable tray body 1 and the cover plate 2 are connected by a snap-fit component 3 and a snap-fit component 4.
[0019] The snap-fit assembly 3 includes two fixing plates 31, which are fixedly connected to the side of the cable tray body 1. A rotating rod 32 is rotatably connected between the two fixing plates 31. A snap-fit rod 33 is rotatably connected to the side of the rotating rod 32 near the fixing plate 31. A fixing rod 34 is fixedly connected to the side of the cover plate 2 near the snap-fit rod 33. The snap-fit rod 33 and the fixing rod 34 are snap-fitted together.
[0020] The second snap-fit assembly 4 includes a plate groove 41, which is opened inside the fixed plate 31. Two symmetrically distributed snap-fit plates 42 are slidably snap-fitted inside the plate groove 41. Insert rods 43 are fixedly connected to the side of the snap-fit plates 42 that are far apart from each other. Fixing blocks 44 are fixedly connected to one side of the cable tray body 1 that is located on the fixed plate 31. Insertion holes 45 are opened on the fixing blocks 44, and the insert rods 43 are movably inserted into the insertion holes 45.
[0021] By adopting the above technical solution, while using the snap-fit component 3 to fasten the cable tray body 1 and the cover plate 2, the insertion rod 43 is movably inserted into the insertion hole 45, thereby limiting the rotation of the fixing plate 31, thus improving the stability of the connection between the cable tray body and the cover plate.
[0022] The fixed plate 31 has a sliding groove 46 on the side near the plate groove 41. Two guide plates 47 are symmetrically distributed inside the sliding groove 46, and each guide plate 47 has a guide groove 48.
[0023] By adopting the above technical solution and setting the guide groove 48, the movement of the snap-fit plate 42 is easily guided, thereby facilitating the installation and unlocking operations.
[0024] The fixing plate 31 is slidably engaged with the unlocking plate 411 on one side. Two guide posts 49 are fixedly connected to one side of the unlocking plate 411. Two vertical grooves 410 are opened on the side of the fixing plate 31 near the unlocking plate 411. The guide posts 49 are movably engaged in the vertical grooves 410 and the guide grooves 48.
[0025] By adopting the above technical solution, by pushing the unlocking plate 411 downward, the guide post 49 is simultaneously driven to slide along the interior of the vertical groove 410 and the guide groove 48. Utilizing the cooperation between the guide groove 48 and the guide post 49, the two guide plates 47 and the snap-fit plate 42 are simultaneously driven to move towards each other, so that the insertion rod 43 is pulled out from the interior of the insertion hole 45, thereby completing the unlocking operation.
[0026] A spring 412 is fixedly connected between the two snap-fit plates 42.
[0027] By adopting the above technical solution and setting the spring 412, it is easy to reset the snap plate 42. At the same time, the elastic force of the spring 412 makes the insertion of the plug rod 43 more secure.
[0028] The bottom of the fixing plate 31 is provided with an inclined surface 5 on the side near the cable tray body 1.
[0029] By adopting the above technical solution, the bottom of the fixing plate 31 is set as an inclined surface 5 on the side close to the cable tray body 1, which makes it easier to rotate the fixing plate 31 upwards, thereby completing the unlocking operation.
[0030] Working principle: When fastening the cable tray body and the cover plate, the cover plate 2 is placed on the top of the cable tray body 1, and the snap-fit rod 33 is sleeved on the bottom outside of the fixing rod 34. By rotating the fixing plate 31 downward, the fixing plate 31 is rotated to face vertically downward, thereby fixing the relative position between the cable tray body 1 and the cover plate 2.
[0031] Then, the ends of the two insert rods 43 away from the snap-fit plate 42 are respectively inserted into the corresponding sockets 45, thereby fixing the rotation of the fixing plate 31 and achieving double snap-fit, which further improves the stability of the locking device. When it is necessary to unlock the cable tray, the unlocking plate 411 is pushed down, and the guide post 49 is slid along the interior of the vertical groove 410 and the guide groove 48. With the cooperation between the guide groove 48 and the guide post 49, the two guide plates 47 and the snap-fit plate 42 are moved towards the side of the spring 412, so that the insert rod 43 is pulled out from the interior of the socket 45, thereby releasing the restriction on the upward rotation of the fixing plate 31. Then, the fixing plate 31 is rotated upward to separate the snap-fit rod 33 from the fixing rod 34, thereby realizing the unlocking operation of the cable tray.
[0032] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A cable tray installation locking device, comprising a cable tray body (1), characterized in that: The top of the cable tray body (1) is covered with a cover plate (2), and the cable tray body (1) and the cover plate (2) are connected by a snap-fit component one (3) and a snap-fit component two (4); The snap-fit assembly (3) includes two fixing plates (31), which are fixedly connected to the side of the cable tray body (1). A rotating rod (32) is rotatably connected between the two fixing plates (31). A snap-fit rod (33) is rotatably connected to the side of the rotating rod (32) near the fixing plate (31). A fixing rod (34) is fixedly connected to the side of the cover plate (2) near the snap-fit rod (33). The snap-fit rod (33) is snapped into the fixing rod (34).
2. The cable tray installation locking device as described in claim 1, characterized in that, The second snap-fit assembly (4) includes a plate groove (41), which is opened inside the fixed plate (31). Two symmetrically distributed snap-fit plates (42) are slidably snap-fitted inside the plate groove (41). Insert rods (43) are fixedly connected to the side of the snap-fit plates (42) that are far apart from each other. Fixing blocks (44) are fixedly connected to one side of the cable tray body (1) that is located on the fixed plate (31). Insertion holes (45) are opened on the fixing blocks (44), and the insertion rods (43) are movably inserted into the insertion holes (45).
3. The cable tray installation locking device as described in claim 2, characterized in that, The fixed plate (31) has a sliding groove (46) on the side near the plate groove (41) inside. Two guide plates (47) are symmetrically distributed inside the sliding groove (46), and each guide plate (47) has a guide groove (48).
4. The cable tray installation locking device as described in claim 3, characterized in that, The fixing plate (31) is slidably engaged with the unlocking plate (411) on one side. Two guide posts (49) are fixedly connected to one side of the unlocking plate (411). Two vertical grooves (410) are opened on the side of the fixing plate (31) near the unlocking plate (411). The guide posts (49) are movably engaged in the vertical grooves (410) and the guide grooves (48).
5. A cable tray installation locking device as described in claim 2, characterized in that, A spring (412) is fixedly connected between the two snap-fit plates (42).
6. The cable tray installation locking device as described in claim 1, characterized in that, The bottom of the fixing plate (31) is inclined (5) on the side near the cable tray body (1).