A cable tray with a locking device

Abstract

This utility model discloses a cable tray with a locking device. The locking device is disposed between the cable tray frame and the cover plate. The top of the cable tray frame engages with the bottom of the cover plate. The locking device includes guide seats disposed on the top of both sides of the cable tray frame, and the guide seats have grooves inside. This utility model secures the cover plate to the top of the cable tray frame. After placement, the locking rod assembly can be pulled away from the through hole. Then, the locking rod assembly is slid along the inner surface of the groove using a pulley. When it reaches the appropriate position, the locking rod assembly engages with the corresponding through hole. Finally, by rotating the threaded rod, the threaded rod rotates on the inner surface of the connecting plate, thereby moving the pressing block. The pressing block then presses against the top of the cover plate. By setting up the above structure, the cover plate can be securely fastened, improving the stability between the cover plate and the cable tray frame.

Description

Technical Field

[0001] This utility model belongs to the field of cable tray technology, and in particular relates to a cable tray with a locking device. Background Technology

[0002] In building electrical systems, cable trays are structured devices used to support and lay cables. They categorize and lay power cables, control cables, communication cables, etc., to avoid messy tangles, make wiring more organized, and improve space utilization.

[0003] The top of a cable tray is usually fitted with a cover plate on top of the tray frame using a snap-fit ​​method, with the top of the frame snapping into the slot of the cover plate. However, the cover plate is prone to falling off in this existing connection method, which reduces the stability of the cover plate position. To address this, we propose a cable tray with a locking device to solve the shortcomings of the existing technology. Utility Model Content

[0004] The purpose of this utility model is to provide a cable tray with a locking device, which can fasten the cover plate and improve the stability between the cover plate and the cable tray frame, so as to solve the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A cable tray with a locking device is provided between the cable tray frame and the cover plate. The top of the cable tray frame is engaged with the bottom of the cover plate. The locking device includes guide seats provided on the top of both sides of the cable tray frame. The guide seats have a sliding groove inside. A pulley is slidably connected to the inner surface of the sliding groove. A sleeve is rotatably connected to the shaft of the pulley through a bearing seat. A locking rod assembly is slidably provided inside the sleeve. A connecting plate is fixedly connected to one side of the locking rod assembly. A threaded rod is threadedly connected to the top of the inner cavity of the connecting plate. A pressing block is fixedly connected to the bottom of the threaded rod. After rotation, the pressing block is tightly fitted with the top of the cover plate. The cable tray frame has multiple through holes adapted to the locking rod assembly inside.

[0006] Preferably, guide grooves are provided at the top and bottom of the inner cavity of the slide groove, and the inner surface of the guide groove is slidably connected to the outer surface of the pulley.

[0007] Preferably, the lever assembly includes a sliding handle that slides on the inner surface of the sleeve, a lever is fixedly connected to the axis of the sliding handle, a spring is sleeved on the outer surface of the lever, and the two ends of the spring are fixedly connected to the inner wall of the sleeve and one end of the sliding handle, respectively.

[0008] Preferably, the lever passes through the guide seat and extends to the inner wall of the cable tray frame.

[0009] Preferably, the bottom of the cover plate has slots on both sides, and the top end face of the cable tray frame is engaged with the inner surface of the slots.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model uses a cover plate that engages with the top of the cable tray frame. After placement, the locking rod assembly can be pulled to move away from the through hole. Then, the locking rod assembly can be slid on the inner surface of the groove using a pulley. When it reaches the appropriate position, the locking rod assembly engages with the corresponding through hole. Finally, by rotating the threaded rod, the threaded rod rotates on the inner surface of the connecting plate, thereby driving the pressing block to move. The pressing block then presses against the top of the cover plate. By setting the above structure, the position of the cover plate can be fastened, improving the stability between the cover plate and the cable tray frame.

[0012] 2. This utility model provides a guide groove with its inner surface slidably connected to the outer surface of the pulley, which can guide the sliding of the pulley and limit its left and right positions.

[0013] 3. This utility model involves pulling the locking rod outward, which causes the sliding handle to slide on the inner surface of the sleeve, thereby stretching the spring. When the locking rod leaves the limit engagement of the through hole, the connecting plate can be pulled to make the pulley slide. When it slides to the appropriate position, the spring force causes the locking rod to reset and engage in the corresponding through hole. Attached Figure Description

[0014] in:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a diagram showing the connection between the clamping rod assembly and the cable tray frame of this utility model;

[0017] Figure 3 This is an enlarged schematic diagram of the structure at point A of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the lever assembly of this utility model.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Cable tray frame, 2. Cover plate, 3. Guide seat, 4. Slide groove, 5. Pulley, 6. Sleeve, 7. Connecting plate, 8. Threaded rod, 9. Pressing block, 10. Through hole, 11. Locking rod, 12. Sliding handle, 13. Spring. Detailed Implementation

[0021] In the following description, embodiments of the cable tray with locking device of the present invention will be described with reference to the accompanying drawings. Example 1

[0022] Figure 1-4 This invention illustrates a cable tray with a locking device according to an embodiment of the present invention. The locking device is disposed between the cable tray frame 1 and the cover plate 2. The top of the cable tray frame 1 engages with the bottom of the cover plate 2. The locking device includes guide seats 3 disposed on the top of both sides of the cable tray frame 1. A sliding groove 4 is formed inside the guide seat 3. A pulley 5 is slidably connected to the inner surface of the sliding groove 4. A sleeve 6 is rotatably connected to the axis of the pulley 5 through a bearing seat. A locking rod assembly is slidably disposed inside the sleeve 6. The locking rod assembly includes components that slide on the inner surface of the sleeve 6. The sliding handle 12 has a fixed locking rod 11 at its axis. A spring 13 is sleeved on the outer surface of the locking rod 11. The two ends of the spring 13 are fixedly connected to the inner wall of the sleeve 6 and one end of the sliding handle 12, respectively. The locking rod 11 passes through the guide seat 3 and extends to the inner wall of the cable tray frame 1. By pulling the locking rod 11 outward, the sliding handle 12 slides on the inner surface of the sleeve 6, thereby stretching the spring 13. When the locking rod 11 leaves the limiting engagement of the through hole 10, the connecting plate 7 can be pulled to make the pulley 5 slide. When slid to the appropriate position, the spring 13 causes the locking rod 11 to reset and engage with the corresponding through hole 10. A connecting plate 7 is fixedly connected to one side of the locking rod assembly. A threaded rod 8 is threadedly connected to the top of the inner cavity of the connecting plate 7. A pressing block 9 is fixedly connected to the bottom of the threaded rod 8. After rotation, the pressing block 9 fits tightly against the top of the cover plate 2. The inside of the cable tray frame 1 has multiple through holes 10 that are compatible with the locking rod assembly. The cover plate 2 engages with the top of the cable tray frame 1. After placement, the locking rod can be pulled. The rod assembly leaves the through hole 10 via the locking rod assembly. At this point, the locking rod assembly is slid on the inner surface of the slide groove 4 via the pulley 5. When it slides to the appropriate position, the locking rod assembly is engaged into the corresponding through hole 10. Finally, by rotating the threaded rod 8, the threaded rod 8 rotates on the inner surface of the connecting plate 7, thereby driving the pressing block 9 to move. The pressing block 9 then presses against the top of the cover plate 2. By setting the above structure, the position of the cover plate can be fastened, improving the stability between the cover plate and the cable tray frame. Example 2

[0023] Figure 1-4This invention illustrates a cable tray with a locking device according to an embodiment of the present invention. The locking device is disposed between the cable tray frame 1 and the cover plate 2. The cover plate 2 has slots on both sides of its bottom. The top end face of the cable tray frame 1 is engaged with the inner surface of the slots, and the top of the cable tray frame 1 is engaged with the bottom of the cover plate 2. The locking device includes guide seats 3 disposed on the top of both sides of the cable tray frame 1. A sliding groove 4 is formed inside the guide seat 3, and a pulley 5 is slidably connected to the inner surface of the sliding groove 4. Guide grooves are formed at the top and bottom of the inner cavity of the sliding groove 4, and the inner surface of the guide groove slides against the outer surface of the pulley 5. The sliding connection is achieved by setting the inner surface of the guide groove to slide with the outer surface of the pulley 5, which can guide the sliding of the pulley 5 and limit its left and right positions. The shaft of the pulley 5 is rotatably connected to the sleeve 6 through the bearing seat. The sleeve 6 is slidably equipped with a locking rod assembly. A connecting plate 7 is fixedly connected to one side of the locking rod assembly. A threaded rod 8 is threadedly connected to the top of the inner cavity of the connecting plate 7. A pressing block 9 is fixedly connected to the bottom of the threaded rod 8. After rotation, the pressing block 9 is tightly fitted to the top of the cover plate 2. The inside of the cable tray frame 1 is provided with multiple through holes 10 that are adapted to the locking rod assembly.

[0024] Working principle: When this utility model is in use, the cover plate 2 is engaged with the top of the cable tray frame 1. After placement, the locking rod assembly can be pulled. By pulling the locking rod 11 outward, the sliding handle 12 slides on the inner surface of the sleeve 6, thereby stretching the spring 13. When the locking rod 11 leaves the limiting engagement of the through hole 10, the connecting plate 7 can be pulled to make the pulley 5 slide, which slides on the inner surface of the slide groove 4. When it slides to the appropriate position, the force of the spring 13 makes the locking rod 11 reset and engage in the corresponding through hole 10. Finally, by rotating the threaded rod 8, the threaded rod 8 rotates on the inner surface of the connecting plate 7, thereby driving the pressing block 9 to move. The pressing block 9 then presses against the top of the cover plate 2, thereby achieving the goal of fastening the cover plate and improving the stability between the cover plate and the cable tray frame.

Claims

1. A cable tray with a locking device, the locking device being provided between a tray frame (1) and a cover plate (2), the top of the tray frame (1) being engaged with the bottom of the cover plate (2), characterized in that, The locking device includes guide seats (3) set on the top of both sides of the cable tray frame (1). The guide seats (3) have a sliding groove (4) inside. A pulley (5) is slidably connected to the inner surface of the sliding groove (4). A sleeve (6) is rotatably connected to the axis of the pulley (5) through a bearing seat. A locking rod assembly is slidably arranged inside the sleeve (6). A connecting plate (7) is fixedly connected to one side of the locking rod assembly. A threaded rod (8) is threadedly connected to the top of the inner cavity of the connecting plate (7). A pressing block (9) is fixedly connected to the bottom of the threaded rod (8). The pressing block (9) fits tightly against the top of the cover plate (2) after rotation. The cable tray frame (1) has multiple through holes (10) adapted to the locking rod assembly inside.

2. Cable tray with a locking device according to claim 1, characterized in that The top and bottom of the inner cavity of the slide groove (4) are provided with guide grooves, and the inner surface of the guide groove is slidably connected to the outer surface of the pulley (5).

3. The cable tray with a locking device according to claim 1, characterized in that, The lever assembly includes a sliding handle (12) that slides on the inner surface of the sleeve (6). A lever (11) is fixedly connected to the axis of the sliding handle (12). A spring (13) is sleeved on the outer surface of the lever (11). The two ends of the spring (13) are fixedly connected to the inner wall of the sleeve (6) and one end of the sliding handle (12), respectively.

4. Cable tray with a locking device according to claim 3, characterized in that The lever (11) passes through the guide seat (3) and extends to the inner wall of the cable tray frame (1).

5. The cable tray with a locking device according to claim 1, wherein, The cover plate (2) has slots on both sides at the bottom, and the top end face of the bridge frame (1) is engaged with the inner surface of the slots.

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