Indoor electric power bridge structure for electric power engineering

By employing a clamping and fixing structure on the power cable tray, and using components such as support plates and threaded rods to apply uniform pressure at multiple points or surfaces, the deformation and loosening problems caused by single-point fixing of the cable tray are solved, achieving higher stability and safety.

CN224021415UActive Publication Date: 2026-03-20SHANDONG TUODA ELECTRIC POWER ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

When existing indoor power cable trays are used to support heavy cables, single-point fixing may cause the cable trays to deform or loosen, posing a safety hazard.

Method used

The clamping and fixing structure is adopted. Through the combination of support plate, threaded rod and clamping plate, pressure is evenly applied to fix the cable tray at multiple points or surfaces to avoid excessive local stress.

Benefits of technology

It improves the stability of the cable tray, prevents deformation and loosening of fixing points, and enhances safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an indoor electric power bridge structure for electric power engineering, which comprises a bridge mounted on the front side of a wall surface, an expansion bolt is arranged on the rear side of the bridge in a penetrating manner, the bridge is fixedly connected with the wall surface through the expansion bolt, a mounting shell is arranged on the rear side of the bridge, and the mounting shell is fixedly connected with the wall surface through the expansion bolt. The device comprises a mounting shell, the mounting shell is fixedly connected with a wall surface through expansion bolts, two symmetrical fixing plates are fixedly connected to the left side and the right side of the mounting shell, threaded rods are arranged on the opposite sides of the mounting shell, and clamping plates are rotationally connected to the opposite sides of the two threaded rods; the left side and the right side of the bottom of the bridge frame are fixedly connected with mounting plates through expansion bolts. According to the utility model, through the cooperative use of the supporting plate, the supporting rod and the mounting frame, the mounting shell can stably fix the bridge, and then through the cooperative use of the connecting plate, the threaded rod and the clamping plates, the two clamping plates can clamp and fix the bridge, so that the bridge cannot deviate.
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Description

Technical Field

[0001] This utility model belongs to the field of power engineering technology, and in particular relates to an indoor power cable tray structure for power engineering. Background Technology

[0002] Indoor power cable trays are structural devices used in indoor power engineering to support, protect, and manage cables. They are usually made of metal or non-metal materials and come in different shapes and specifications. They can arrange cables in an orderly manner in buildings, avoid messy cable laying, and protect cables from mechanical damage, fire, and other hazards.

[0003] When installing indoor power cable trays, the load-bearing capacity of expansion bolts is limited. If there are many cables laid on the tray and they are heavy, expansion bolts alone may not be able to stably support the tray in the long term, which may lead to deformation, sinking, or even falling off the tray, posing a safety threat. Therefore, we need to design an indoor power cable tray structure for electrical engineering that adopts a clamping and fixing structure. This structure can apply uniform pressure to multiple points or surfaces of the cable tray, firmly fixing it to the wall. Compared with single-point fixing methods such as expansion bolts, it can better distribute the weight of the cable tray and cables, avoiding deformation of the cable tray or loosening of the fixing points due to excessive local stress, thus improving the stability of the power cable tray. Utility Model Content

[0004] The purpose of this utility model is to provide an indoor power cable tray structure for power engineering. It has the advantages of using a clamping and fixing structure, which can apply uniform pressure to multiple points or surfaces of the cable tray to firmly fix the cable tray to the wall. Compared with single-point fixing methods such as expansion screws, it can better distribute the weight of the cable tray and cables, avoid cable tray deformation or loosening of fixing points due to excessive local stress, and improve the stability of the power cable tray, so as to solve the above-mentioned background technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An indoor power cable tray structure for power engineering includes a cable tray installed on the front side of a wall, an expansion bolt passing through the rear side of the cable tray, the cable tray being fixedly connected to the wall by the expansion bolt, a mounting shell provided on the rear side of the cable tray, the mounting shell being fixedly connected to the wall by the expansion bolt, two symmetrical fixing plates fixedly connected to the left and right sides of the mounting shell, threaded rods provided on the opposing sides of the mounting shell, clamping plates rotatably connected to the opposing sides of the two threaded rods, mounting plates fixedly connected to the left and right sides of the bottom of the cable tray by expansion bolts, support plates fixedly connected to the front sides of the two mounting plates, L-shaped plates fixedly connected to the left and right sides of the top of the mounting shell, the L-shaped plates being fixedly connected to the wall by expansion bolts, mounting frames provided on the left and right sides of the cable tray, bolts passing through the surface of the mounting frames, the cable tray being fixedly connected to the mounting frames by bolts.

[0006] Preferably, threaded sleeves are fixedly connected to both the left and right sides of the mounting shell, and the inner cavity of the threaded sleeve is threadedly connected to the threaded rod.

[0007] Preferably, two symmetrical fixing posts are fixedly connected to each side of the mounting shell facing each other, and a connecting plate is fixedly connected to one end of each of the two fixing posts. The connecting plate is threadedly connected to the threaded rod.

[0008] Preferably, support rods are fixedly connected to the left and right sides of the bottom of the mounting shell and the two mounting plates.

[0009] Preferably, the inner cavities of the two mounting frames are fixedly connected with stiffening plates, and the bolts are threaded with nuts.

[0010] Preferably, the mounting housing has circular grooves on its left and right sides for the threaded sleeve to pass through.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model uses the cooperation of support plate, support rod and mounting frame to make the mounting shell stably fix the cable tray. Then, the cooperation of connecting plate, threaded rod and clamping plate makes the two clamping plates clamp and fix the cable tray, so that the cable tray will not shift its position. The clamping and fixing structure can apply uniform pressure to multiple points or surfaces of the cable tray and fix the cable tray firmly to the wall. Compared with the single-point fixing expansion screw and other methods, it can better distribute the weight of the cable tray and cable, avoid the deformation of the cable tray or loosening of the fixing point due to excessive local stress, and improve the stability of the power cable tray.

[0013] 2. By setting up a threaded sleeve, the threaded sleeve limits the position of the threaded rod when it rotates, ensuring that the threaded rod will not deviate from its position during rotation and improving the stability of the threaded rod during rotation.

[0014] 3. By using the fixed column and connecting plate together, the fixed column and connecting plate guide the clamping plate when the threaded rod drives the clamping plate to move, ensuring that the two clamping plates will not deviate when moving in opposite directions, thus improving the stability of the two clamping plates when moving.

[0015] 4. By setting up a support rod, this utility model provides support for the mounting shell when it is installed on the rear side of the cable tray, ensuring that the mounting shell will not shift downwards during use and improving the stability of the mounting shell during use. Attached Figure Description

[0016] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.

[0017] Figure 1 This is a front view schematic diagram of one embodiment of the present utility model;

[0018] Figure 2 This is a perspective view of a fixing plate and a support rod according to an embodiment of the present utility model;

[0019] Figure 3 This is a front side view schematic diagram of one embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram illustrating the cooperative use of the mounting shell and mounting frame according to one embodiment of the present invention;

[0021] Figure 5 This is one embodiment of the present utility model. Figure 2 A magnified view of point A in the middle.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Wall surface, 2. Cable tray, 3. Expansion bolt, 4. Mounting shell, 5. Fixing plate, 6. Threaded sleeve, 7. Fixing column, 8. Connecting plate, 9. Threaded rod, 10. Clamping plate, 11. Mounting plate, 12. Support plate, 13. Support rod, 14. L-shaped plate, 15. Mounting frame, 16. Stiffening plate, 17. Bolt, 18. Nut. Detailed Implementation

[0024] In the following description, embodiments of the indoor power cable tray structure for power engineering of this utility model will be described with reference to the accompanying drawings.

[0025] Figure 1-5 This invention illustrates an indoor power cable tray structure for electrical engineering, comprising a cable tray 2 installed on the front side of a wall 1, an expansion bolt 3 extending through the rear side of the cable tray 2, and the cable tray 2 being fixedly connected to the wall 1 via the expansion bolt 3. A mounting shell 4 is provided on the rear side of the cable tray 2, and the mounting shell 4 is fixedly connected to the wall 1 via the expansion bolt 3. Two symmetrical fixing plates 5 are fixedly connected to the left and right sides of the mounting shell 4. A threaded rod 9 is provided on each facing side of the mounting shell 4. Threaded sleeves 6 are fixedly connected to both sides of the mounting shell 4, and the inner cavity of the threaded sleeve 6 is threadedly connected to the threaded rod 9. By using the threaded sleeve 6, the threaded rod 9 is limited when it rotates, ensuring that it does not deviate from its position and improving its stability during rotation. Two symmetrical fixing posts 7 are fixedly connected to opposite sides of the mounting shell 4. A connecting plate 8 is fixedly connected to one end of each fixing post 7, and the connecting plate 8 is threadedly connected to the threaded rod 9. Through the cooperation of the fixing posts 7 and the connecting plate 8, when the threaded rod 9 moves the clamping plate 10, the fixing posts 7 and the connecting plate 8 guide the clamping plate 10, ensuring the two clamps... The plates 10 do not shift when moving towards each other, improving the stability of the two clamping plates 10 during movement. Clamping plates 10 are rotatably connected to the opposing sides of the two threaded rods 9. Mounting plates 11 are fixedly connected to the left and right sides of the bottom of the cable tray 2 via expansion bolts 3. Support plates 12 are fixedly connected to the front sides of the two mounting plates 11. Support rods 13 are fixedly connected to the left and right sides of the bottom of the mounting shell 4 between it and the two mounting plates 11. Through the support rods 13, the mounting shell 4 is supported when installed on the rear side of the cable tray 2, ensuring safety. The housing 4 will not shift during use, which improves the stability of the housing 4 during use. L-shaped plates 14 are fixedly connected to the left and right sides of the top of the housing 4. The L-shaped plates 14 are fixedly connected to the wall 1 by expansion bolts 3. The cable tray 2 is provided with mounting frames 15 on both sides. Bolts 17 are installed through the surface of the mounting frames 15. The cable tray 2 is fixedly connected to the mounting frames 15 by bolts 17. The inner cavity of the two mounting frames 15 is fixedly connected with stiffening plates 16. Nuts 18 are threaded on the surface of the bolts 17. Circular grooves for threaded sleeves 6 to pass through are opened on the left and right sides of the housing 4.

[0026] Working Principle: When using this utility model, the user pushes the mounting shell 4 from the bottom to the middle of the cable tray 2, then installs the mounting shell 4 on the front side of the wall 1 using expansion bolts 3. Next, the two mounting plates 11 are fixed to the left and right sides of the cable tray 2 using expansion bolts 3. Then, the support plate 12 is fixed to the front side of the mounting plate 11, so that the two support rods 13 support the left and right sides of the bottom of the mounting shell 4, preventing the mounting shell 4 from shifting downwards on the front side of the wall 1. Subsequently, the L-shaped plate 14 is fixed to the front side of the wall 1 using expansion bolts 3, and the mounting frame 15 is fixed to the left and right sides of the bottom of the cable tray 2 using bolts 17. Due to the stiffening plate 16, when the mounting frame 15 supports the cable tray 2, the stiffening plate 16 limits the left and right movement of the mounting frame 15. At this time, the fixing of the mounting shell 4 is completed. Then, the two threaded rods 9 are rotated, so that the two threaded rods 9 move towards each other in the inner cavity of the threaded sleeve 6. The threaded rods 9 rotate on the surface of the connecting plate 8, so that the two threaded rods 9 will drive the clamping plate 10 to clamp the left and right sides of the cable tray 2. Due to the setting of the threaded rods 9, when the rotation of the threaded rods 9 stops, the threaded rods 9 will not be stuck, ensuring the stability of the clamping plate 10 clamping the cable tray 2. Finally, the cable tray 2 will not shift or shake when installed on the front side of the wall 1.

[0027] In summary, the indoor power cable tray structure used in this power engineering project, through the cooperation of the support plate 12, support rod 13, and mounting frame 15, ensures that the mounting shell 4 stably fixes the cable tray 2. Then, through the cooperation of the connecting plate 8, threaded rod 9, and clamping plate 10, the two clamping plates 10 clamp and fix the cable tray 2, thereby preventing the cable tray 2 from shifting its position. This clamping and fixing structure can apply uniform pressure to multiple points or surfaces of the cable tray, firmly fixing the cable tray to the wall. Compared with single-point fixing methods such as expansion screws, it can better distribute the weight of the cable tray and cables, avoid cable tray deformation or loosening of fixing points due to excessive local stress, and improve the stability of the power cable tray.

Claims

1. An indoor power cable tray structure for power engineering, characterized in that, The system includes a cable tray (2) installed on the front side of the wall (1). An expansion bolt (3) is installed through the rear side of the cable tray (2). The cable tray (2) is fixedly connected to the wall (1) by the expansion bolt (3). A mounting shell (4) is provided on the rear side of the cable tray (2). The mounting shell (4) is fixedly connected to the wall (1) by the expansion bolt (3). Two symmetrical fixing plates (5) are fixedly connected to the left and right sides of the mounting shell (4). A threaded rod (9) is provided on the opposite side of the mounting shell (4). A clamping plate (10) is rotatably connected to the opposite side of the two threaded rods (9). The bottom left and right sides of the cable tray (2) are fixedly connected to the mounting plates (11) by expansion bolts (3). The front sides of the two mounting plates (11) are fixedly connected to the support plates (12). The top left and right sides of the mounting shell (4) are fixedly connected to the L-shaped plates (14). The L-shaped plates (14) are fixedly connected to the wall (1) by expansion bolts (3). The left and right sides of the cable tray (2) are provided with mounting frames (15). The surface of the mounting frames (15) is provided with bolts (17). The cable tray (2) is fixedly connected to the mounting frames (15) by bolts (17).

2. The indoor power cable tray structure for power engineering according to claim 1, characterized in that, The mounting shell (4) is fixedly connected to threaded sleeves (6) on both the left and right sides, and the inner cavity of the threaded sleeves (6) is threadedly connected to the threaded rod (9).

3. The indoor power cable tray structure for power engineering according to claim 2, characterized in that, Two symmetrical fixing posts (7) are fixedly connected to each side of the mounting shell (4). A connecting plate (8) is fixedly connected to one end of each of the two fixing posts (7). The connecting plate (8) is threadedly connected to the threaded rod (9).

4. The indoor power cable tray structure for power engineering according to claim 3, characterized in that, Support rods (13) are fixedly connected between the left and right sides of the bottom of the mounting shell (4) and the two mounting plates (11).

5. The indoor power cable tray structure for power engineering according to claim 4, characterized in that, The inner cavities of the two mounting frames (15) are fixedly connected with stiffening plates (16), and the surfaces of the bolts (17) are threaded with nuts (18).

6. The indoor power cable tray structure for power engineering according to claim 5, characterized in that, The mounting housing (4) has circular grooves on its left and right sides for the threaded sleeve (6) to pass through.