Large-span light bridge frame support structure
By designing a large-span lightweight cable tray support structure and utilizing a combination of cable fixing plates and ventilated pipes, the problem of heat not being able to dissipate due to close contact between the support structure and the cable was solved. This achieved effective heat dissipation and structural lightweighting, enhancing the flexibility and safety of cable laying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HUAPENG BRIDGE CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-07-03
Smart Images

Figure CN224459085U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cable tray support mechanisms, and in particular to a large-span lightweight cable tray support structure. Background Technology
[0002] Cable trays are categorized into various structures, including trough-type, tray-type, ladder-type, and mesh-type cable trays. They can be installed independently or laid on various buildings, structures, and pipe rack supports. They feature simple structure, aesthetically pleasing appearance, flexible configuration, and convenient maintenance. All parts must be galvanized. For cable trays installed outdoors, especially near the sea or in corrosive areas, the material must possess properties such as corrosion resistance, moisture resistance, good adhesion, and high impact resistance.
[0003] Existing cable trays will have additional support mechanisms inside to fix and support the cables, preventing them from getting tangled or moving. However, the close contact between the support mechanism and the cables can prevent heat from dissipating from the contact area, creating a safety hazard.
[0004] Therefore, it is necessary to propose a large-span lightweight cable tray support structure to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a large-span lightweight cable tray support structure to solve the problem that existing cable trays have added support mechanisms inside to fix and support the cables and prevent them from getting tangled and moving. However, the close contact between the support mechanism and the cables can cause the heat of the cables in the contact area to not dissipate, resulting in safety hazards.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a long-span lightweight cable tray support structure, comprising:
[0007] Cable tray body;
[0008] The cable support mechanism is slidably installed between the two sides inside the cable tray body;
[0009] The cable support mechanism includes a cable fixing plate, which has a circular hole for the cable to pass through, and heat dissipation holes are provided at the bottom and top of the circular hole.
[0010] The bottom of the cable fixing plate is provided with a vent pipe that can be extended and retracted. The inside of the cable fixing plate is provided with a cavity. The top of the cable fixing plate is fixed with a hole corresponding to the position of the vent pipe. The vent pipe, the hole, and the heat dissipation hole are all connected to the inside of the cavity.
[0011] Preferably, the cable tray body has sliding grooves on both sides inside, and the two sliding grooves are distributed along the length direction of the cable tray body.
[0012] Preferably, an upper sliding groove is provided above each of the two lower sliding grooves, and the upper sliding groove is formed on the cable tray body.
[0013] Preferably, the bottom end of the cable tray body is provided with multiple limiting holes, and the vent pipe is inserted into the corresponding limiting holes.
[0014] Preferably, a sponge block is provided on the outside of the vent pipe.
[0015] Preferably, sliding blocks are fixed on both sides of the cable fixing plate, and the sliding blocks are slidably installed in the corresponding downward groove;
[0016] Both sliding blocks are fixed with threaded posts at opposite ends, and the cable fixing plate has fixing holes on both sides for threaded connection of the corresponding threaded posts.
[0017] Preferably, connection holes are provided on both sides of the cable tray body.
[0018] The technical effects and advantages of this utility model are as follows:
[0019] 1. After the cable fixing plate is slidably installed between the two sliding grooves, the vent tube at the bottom of the cable fixing plate will automatically fall down after moving to the position of the limiting hole and insert into the limiting hole to fix the cable fixing plate. At the same time, the heat generated by the cable can enter the vent hole and be discharged from the bottom of the vent tube. The bottom of the vent tube is connected to the outside, which facilitates the output of heat.
[0020] 2. Alternatively, another cable fixing plate can be installed on top of the existing cable fixing plate to support cables of different heights. The sliding blocks on both sides of the upper cable fixing plate can slide into the corresponding upper grooves. Installing two cable fixing plates, one above the other, increases the connection strength between the two sides of the cable tray body.
[0021] 3. By opening upper and lower sliding grooves and limiting holes, damage to the cable tray material can be reduced and the weight can be reduced. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the large-span lightweight cable tray support structure of this utility model.
[0023] Figure 2 This is a schematic diagram of the cable fixing plate of this utility model.
[0024] Figure 3 This is a schematic diagram of the threaded column of this utility model.
[0025] In the diagram: 1. Cable tray body; 2. Upper sliding groove; 3. Limiting hole; 4. Connecting hole; 5. Cable fixing plate; 6. Insertion hole; 7. Heat dissipation hole; 8. Ventilation pipe; 9. Sponge block; 10. Sliding block; 11. Lower sliding groove; 12. Threaded post; 13. Round hole. Detailed Implementation
[0026] This utility model provides, for example Figures 1-3 The large-span lightweight cable tray support structure shown includes: a cable tray body 1, which has a large span design, can cover a larger span, reduces the dependence on support points, and improves the flexibility and efficiency of cable laying. The cable tray body 1 is made of high-strength, lightweight materials, such as aluminum alloy and steel composite materials, which reduces its own weight and reduces the load on the support structure.
[0027] In order to add a support mechanism inside the existing cable tray to fix and support the cables and prevent them from getting tangled and moving, but the support mechanism is in close contact with the cables, which will cause the heat of the cables in the contact area to be unable to dissipate, causing a safety hazard. Therefore, a cable support mechanism is installed, which is slidably installed between the two sides inside the cable tray body 1.
[0028] The cable support mechanism includes a cable fixing plate 5, which has a circular hole 13 for the cable to pass through. The bottom and top of the circular hole 13 are both provided with heat dissipation holes 7.
[0029] The bottom of the cable fixing plate 5 is provided with a vent pipe 8, and the inside of the cable fixing plate 5 is provided with a cavity. The top of the cable fixing plate 5 is fixed with a socket 6 corresponding to the position of the vent pipe 8. The vent pipe 8, the socket 6, and the heat dissipation hole 7 are all connected to the inside of the cavity.
[0030] Multiple limiting holes 3 are provided at the bottom of the cable tray body 1, and the vent pipe 8 is inserted into the corresponding limiting hole 3.
[0031] In the actual operation of this utility model, the cable fixing plate 5 can be installed inside the cable tray body 1, and the cable can be installed by passing through the round hole 13 of the cable fixing plate 5. The cable fixing plate 5 supports the cable and reduces the situation of the cable getting tangled and moving.
[0032] The cable tray body 1 has two sliding grooves 11 on both sides inside. The two sliding grooves 11 are distributed along the length of the cable tray body 1. The upper sliding groove 2 is provided above the two sliding grooves 11. The upper sliding groove 2 is opened on the cable tray body 1.
[0033] By opening the upper sliding groove 2, the lower sliding groove 11 and the limiting hole 3, the material damage of the cable tray body 1 can be reduced and the weight can be reduced.
[0034] A sponge block 9 is provided on the outside of the vent pipe 8.
[0035] Both sides of the cable fixing plate 5 are fixed with sliding blocks 10, and the sliding blocks 10 are slidably installed in the corresponding downward grooves 11.
[0036] After the cable fixing plate 5 is slidably installed between the two sliding grooves 11, the vent pipe 8 at the bottom of the cable fixing plate 5 moves to the position of the limiting hole 3 and will automatically fall down and insert into the limiting hole 3 to fix the cable fixing plate 5. At the same time, the heat generated by the cable can enter the vent hole 7 and be discharged from the bottom of the vent pipe 8. The bottom of the vent pipe 8 is connected to the outside, which facilitates the output of heat.
[0037] Alternatively, another cable fixing plate 5 can be installed at the top of the cable fixing plate 5 to support cables of different heights. The sliding blocks 10 on both sides of the upper cable fixing plate 5 can be slidably installed inside the corresponding upper sliding grooves 2.
[0038] Two sliding blocks 10 are fixed with threaded posts 12 at opposite ends. The cable fixing plate 5 has fixing holes on both sides for threaded connection of the corresponding threaded posts 12. The threaded posts sliding blocks 10 can be used or not, which is convenient for disassembly and installation.
[0039] Connection holes 4 are provided on both sides of the cable tray body 1.
Claims
1. A large-span light bridge support structure, characterized in that: include: The cable tray body (1) and the cable support mechanism are slidably installed between the two sides inside the cable tray body (1); The cable support mechanism includes a cable fixing plate (5), which has a circular hole (13) for the cable to pass through. The circular hole (13) has heat dissipation holes (7) at the bottom and top. The bottom end of the cable fixing plate (5) is provided with a vent pipe (8). The inside of the cable fixing plate (5) is provided with a cavity. The top end of the cable fixing plate (5) is fixed with a socket (6) corresponding to the position of the vent pipe (8). The vent pipe (8), the socket (6), and the heat dissipation hole (7) are all connected to the inside of the cavity.
2. The support structure for a large-span lightweight bridge according to claim 1, wherein: The cable tray body (1) has two sliding grooves (11) on both sides inside, and the two sliding grooves (11) are distributed along the length direction of the cable tray body (1).
3. The support structure for a large span lightweight bridge according to claim 1, wherein: Above each of the two sliding grooves (11) is an upper sliding groove (2), which is opened on the cable tray body (1).
4. The support structure for a large span lightweight bridge according to claim 1, wherein: The bottom end of the cable tray body (1) is provided with multiple limiting holes (3), and the vent pipe (8) is inserted into the corresponding limiting hole (3).
5. The support structure for a large span lightweight bridge according to claim 1, wherein: A sponge block (9) is provided on the outside of the vent pipe (8).
6. The support structure for a large span lightweight bridge according to claim 2, wherein: The cable fixing plate (5) has sliding blocks (10) fixed on both sides, and the sliding blocks (10) are slidably installed in the corresponding sliding grooves (11); Two sliding blocks (10) are fixed with threaded posts (12) at opposite ends. The cable fixing plate (5) has fixing holes on both sides for threaded connection of the corresponding threaded posts (12).
7. The support structure for a large span lightweight bridge according to claim 1, wherein: The cable tray body (1) has connection holes (4) on both sides.