Combined ladder type cable bridge

Abstract

The utility model relates to the technical field of cable bridges, and discloses a combined ladder type cable bridge which comprises a first main beam and second main beams, a plurality of crosspieces are arranged between the first main beam and the second main beams, the crosspieces are located on the inner turnups of the two second main beams, auxiliary fixing assemblies and connecting assemblies are arranged at the connecting positions of the second main beams and the first main beam, and the connecting assemblies are located on the inner turnups of the first main beam and the second main beam. The auxiliary fixing assembly aims to enhance the connecting strength between the main beam I and the main beam II, the auxiliary fixing assembly comprises two extension plates, the two extension plates are fixed to the two sides of the main beam II respectively, two bolt holes are formed in each extension plate, and identical holes are formed in the positions, corresponding to the lower portions of the bolt holes, of the main beam I. According to the utility model, the extension plates and the bolt holes are arranged on the two sides of the crosspiece to improve the connection strength, the elastic buckles are arranged below the crosspiece to realize preliminary fixation and improve the installation efficiency, the installation blocks and the bolts in the crosspiece are utilized to enhance the structural stability and the bearing performance, and meanwhile, the cable limiters are arranged on the top of the crosspiece to fix a plurality of cables.

Description

Technical Field

[0001] This utility model relates to the field of cable tray technology, and in particular to a combined ladder-type cable tray. Background Technology

[0002] In the field of cable tray technology, modular ladder-type cable trays are widely used in industrial plants, data centers, computer rooms, underground pipe corridors, and other scenarios where cables are densely packed and good ventilation and heat dissipation are required, due to their flexible structure, excellent heat dissipation performance, and strong load-bearing capacity. Depending on different application requirements, modular ladder-type cable trays can be divided into galvanized steel trays, stainless steel trays, aluminum alloy trays, and fiberglass trays, respectively suitable for fields with high requirements for corrosion resistance, fire resistance, or lightweight high strength.

[0003] Modular ladder-type cable trays consist of main beams (side plates) and crossbars (ladders), forming a stable ladder structure. They feature modular assembly capabilities, allowing for flexible splicing and adjustment according to actual needs. They support and protect cables, ensuring safe operation of the line, while the perforated structure between the ladders provides excellent ventilation and heat dissipation, making them particularly suitable for laying high-current-carrying cables. Based on mechanical support and thermal convection: the main beams and crossbars distribute the weight of the cables, providing load-bearing capacity, while the perforated design promotes airflow and effective heat dissipation, ensuring the stability and safety of cable operation.

[0004] While existing modular ladder-type cable trays offer high practicality in their structural design, there is still room for improvement in certain details. For example, the connection between the main beam and the crossbars typically relies on a single bolt or weld, which may lead to insufficient connection strength due to stress concentration during long-term use. Furthermore, the relatively simple pre-positioning method for the crossbars during installation may affect the accuracy of the initial installation and increase the workload of subsequent adjustments. At the same time, some existing designs lack measures to enhance the fixing strength of the main beam and crossbars, which may not fully meet the higher stability requirements of high-load scenarios or long-term use.

[0005] To address the above issues, a combined ladder-type cable tray is proposed. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a combined ladder-type cable tray, which aims to solve the problems of insufficient connection strength between the main beam and the crossbars and inaccurate positioning in the initial stage of installation of existing combined ladder-type cable trays.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a combined ladder-type cable tray, including a main beam one and a main beam two, with multiple crossbars provided between the main beam one and the main beam two, the crossbars being located on the inner flanges of the two main beam two, and auxiliary fixing components and connecting components being provided at the connection points between the main beam two and the main beam one, in order to enhance the connection strength between the two.

[0008] The auxiliary fixing assembly includes two extension plates, which are respectively fixed on both sides of the main beam. The extension plates have two bolt holes inside, and the main beam has the same hole below the corresponding bolt hole. Fixing components are installed between the bolt holes and the holes.

[0009] As a further description of the above technical solution:

[0010] The connecting assembly includes two mounting blocks and a fixing bolt. The two mounting blocks are located on the inner sides of the crossbar, and the mounting blocks have threaded holes inside. The fixing bolt passes through the side wall of the main beam and is threaded into the inside of the threaded holes.

[0011] As a further description of the above technical solution:

[0012] The top of the crossbar is provided with several cable limiters, which are made of elastic plastic.

[0013] As a further description of the above technical solution:

[0014] The cable limiter is deformable under force, and a cable is clamped between the internal parts of the cable limiter.

[0015] As a further description of the above technical solution:

[0016] The two ends of the crossbar are connected to the main beam by welding around the connection points.

[0017] As a further description of the above technical solution:

[0018] The upper edge of the crossbar is curved to avoid damaging the cable.

[0019] As a further description of the above technical solution:

[0020] Both sides of the bottom of the crossbar are provided with buckles, and the bottom of the buckles is provided with elastic plates.

[0021] As a further description of the above technical solution:

[0022] The connection between the elastic plate and the buckle is subjected to force and deflection. The buckle and the elastic plate can penetrate the lower flange of the second main beam, and the elastic plate is parallel to the bottom side of the first main beam.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, at the connection between the main beam and the crossbar on both sides, extension plates are provided on both sides of the crossbar, and bolt holes are opened on the extension plates. By using bolt connection, the connection strength between the main beam and the crossbar can be significantly improved, ensuring the structural stability of the cable tray under high loads and effectively reducing the loosening or deformation problems caused by long-term stress at the connection.

[0025] 2. In this utility model, a simple elastic buckle is provided below the crossbar. The buckle can pass through the inner flange of the main beam to ensure the accurate positioning of the crossbar before installation. Buckles are provided on both sides of the connection between the main beam and the crossbar. After the buckle passes through the main beam, the elastic plate at its end returns to its original position and locks into the bottom of the main beam, thus achieving initial fixation between the main beam and the crossbar. This design greatly improves installation efficiency and provides a basic guarantee for subsequent fixing operations.

[0026] 3. In this utility model, mounting blocks are installed on both sides of the inner side of the crossbar, and threaded holes are opened inside the mounting blocks. The mounting blocks are connected to the main beam by fixing bolts, which not only further enhances the connection strength between the main beam and the crossbar, but also improves the impact resistance and load-bearing performance of the entire cable tray, ensuring the long-term reliability and safety of the cable tray under complex working conditions.

[0027] 4. In this utility model, multiple sets of cable limiters are provided at the top of the crossbar, which are intended to provide additional fixation for multiple cables and prevent the cables from swaying on the crossbar, thereby causing wear to the cables. Attached Figure Description

[0028] Figure 1 This is a three-dimensional schematic diagram of the combined ladder-type cable tray proposed in this utility model;

[0029] Figure 2 This is a schematic diagram of the snap-fit ​​structure of the combined ladder-type cable tray proposed in this utility model;

[0030] Figure 3 This is a schematic diagram of the fixing bolts for the combined ladder-type cable tray proposed in this utility model;

[0031] Figure 4 This is a schematic diagram of the elastic plate of the combined ladder-type cable tray proposed in this utility model.

[0032] Legend:

[0033] 1. Main beam one; 2. Main beam two; 3. Crossbar; 4. Cable limiter; 5. Auxiliary fixing assembly; 501. Extension plate; 502. Bolt hole; 6. Clip; 7. Connecting assembly; 701. Mounting block; 702. Threaded hole; 703. Fixing bolt; 8. Elastic plate. Detailed Implementation

[0034] 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.

[0035] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a combined ladder-type cable tray, comprising a main beam 1 and a main beam 2. The feature is that multiple crossbars 3 are provided between the main beam 1 and the main beam 2. To prevent damage to the cables, the upper flanges of the crossbars 3 are arc-shaped, effectively preventing sharp edges from scratching the cable sheath. The crossbars 3 are located on the inner flanges of the two main beams 2, designed to support and fix the cables. To enhance the connection strength between the main beam 2 and the main beam 1, auxiliary fixing components 5 and connecting components 7 are provided at the connection point.

[0036] The auxiliary fixing component 5 includes two extension plates 501, which are fixed on both sides of the main beam 2. Two bolt holes 502 are opened inside the extension plate 501. The main beam 1 has a corresponding hole below the bolt hole 502. Fixing components are installed between the bolt hole 502 and the hole. The fixing structure between the main beam and the crossbar is further strengthened by bolt connection.

[0037] Reference Figure 2 - Figure 3 The connecting component 7 includes two mounting blocks 701 and fixing bolts 703. The two mounting blocks 701 are located on the inner sides of the crossbar 3, respectively. The mounting blocks 701 have threaded holes 702 inside. The fixing bolts 703 pass through the side wall of the main beam 1 and are threaded into the threaded holes 702, which further enhances the connection strength between the main beam 1 and the crossbar 3, and improves the stability and impact resistance of the overall cable tray. The two ends of the crossbar 3 are connected to the main beam 1 by welding around the connection, thereby ensuring the structural stability and reliability of the crossbar 3 in long-term use.

[0038] Reference Figure 2 - Figure 3The top of the crossbar 3 is equipped with several cable limiters 4. The cable limiters 4 are made of elastic plastic and have good flexibility. The cable limiters 4 can deform under force and can clamp the cable inside, playing a role in limiting and protecting the cable and preventing it from coming out of its original position due to vibration or movement.

[0039] Reference Figure 3 - Figure 4 Both sides of the bottom of the crossbar 3 are equipped with clips 6, and the bottom of the clips 6 is equipped with elastic plates 8. When the connection between the elastic plate 8 and the clips 6 is subjected to force, the clips 6 and the elastic plate 8 can pass through the lower flange of the second main beam 2. At the same time, after the elastic plate 8 returns to its original position, it is parallel to the bottom side of the first main beam 1. Through the initial fixation of the clips 6 and the elastic plate 8, the installation of the crossbar 3 is more precise, which facilitates subsequent connection operations and improves installation efficiency.

[0040] Working Principle: The combined ladder-type cable tray achieves cable support and fixation through the structural cooperation of main beam 1, main beam 2, and multiple crossbeams 3. Main beam 1 and main beam 2 are reinforced by auxiliary fixing components 5 and connecting components 7. The two extension plates 501 in the auxiliary fixing components 5 are connected to the holes in main beam 1 by fasteners through bolt holes 502, providing initial strength. The connecting components 7 consist of two mounting blocks 701 and fixing bolts 703. The fixing bolts 703 pass through main beam 1 and are threaded to the threaded holes 702 of the mounting blocks 701, further enhancing structural stability. The top of the crossbeams 3 uses cable limiters 4 to clamp and limit the cables. The limiters are made of elastic plastic and can deform to protect the cables. The two ends of the crossbeams 3 are fixed to main beam 1 by welding. The bottom clips 6 and elastic plates 8 pass through main beam 2 to achieve initial installation. After the elastic plates 8 return to their original position, they are parallel to the main beams, providing support for subsequent fixing.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Combined ladder cable tray comprising a main beam one (1) and a main beam two (2), characterized in that: The main beam one (1) and the main beam two (2) are provided with a plurality of crosspieces (3), the crosspieces (3) are located on the inner turning edges of the two main beam two (2), the connecting parts of the main beam two (2) and the main beam one (1) are provided with auxiliary fixing assemblies (5) and connecting assemblies (7), which aims to enhance the connecting strength between them; The auxiliary fixing assembly (5) includes two extension plates (501), two extension plates (501) are fixed on both sides of the main beam two (2), two bolt holes (502) are formed in the inside of the extension plate (501), and the main beam one (1) is provided with the same hole below the corresponding bolt hole (502), and the bolt hole (502) and the hole are provided with a fixing piece.

2. The modular ladder cable tray of claim 1, wherein: The connecting assembly (7) includes two mounting blocks (701) and fixing bolts (703), two mounting blocks (701) are located on both sides of the inside of the crosspiece (3), a threaded hole (702) is formed in the inside of the mounting block (701), and the fixing bolt (703) penetrates the side wall of the main beam one (1) and is screw connected in the inside of the threaded hole (702).

3. The modular ladder cable tray of claim 1, wherein: The top of the crosspiece (3) is provided with a plurality of cable limiters (4), the cable limiters (4) are made of elastic plastic.

4. The modular ladder cable tray of claim 3, wherein: The cable limiter (4) can be deformed under stress, and the cable limiter (4) is clamped with a cable.

5. The modular ladder cable tray of claim 1, wherein: The two ends of the crosspiece (3) and the connecting part of the main beam one (1) are connected by welding.

6. The modular ladder cable tray of claim 1, wherein: The upper turning edge of the crosspiece (3) is arc-shaped, which can avoid damaging the cable.

7. The modular ladder cable tray of claim 1, wherein: The bottom of the crosspiece (3) is provided with a buckle (6), and the bottom of the buckle (6) is provided with an elastic plate (8).

8. The modular ladder cable tray of claim 7, wherein: The elastic plate (8) and the connecting part of the buckle (6) are deflected under stress, the buckle (6) and the elastic plate (8) can penetrate the lower turning edge of the main beam two (2), and the elastic plate (8) is parallel to the bottom side of the main beam one (1).

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