Ladder-type straight-through bridge
By designing an adjustable-width ladder-type straight-through cable tray and cable fixing structure, the problems of existing cable trays being unable to adjust their width and unstable cable fixing have been solved, achieving efficient utilization of the cable tray and enhanced cable stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGYIAN CONSTRUCTION ENGINEERING (JIANGSU) CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-26
AI Technical Summary
Existing ladder-type straight-through cable trays cannot adjust the width, have poor cable fixing stability, and cannot meet the laying requirements of different numbers of cables.
A ladder-type straight-through cable tray was designed, which includes supports, a left cable tray plate, a right cable tray plate, a spring, and a knob. The width of the cable tray is adjusted by adjusting the gear meshing of the knob, and the cable is fixed by the slider and the clamp plate.
It enables adjustable cable tray width and stable cable fixation, reducing installation space and costs, extending cable life, and improving signal transmission quality and cable stability.
Smart Images

Figure CN224418332U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable tray processing, and in particular to a ladder-type straight-through cable tray. Background Technology
[0002] With the rapid development of modern construction and industry, various cables are widely used in control, communication, and power distribution fields. To ensure the safety and stability of cables, suitable cable supports are needed, and ladder-type straight-through cable trays have emerged as a type of cable support for straight-line laying. They can avoid problems such as cable bending and wear, and degradation of electrical performance, improve cable reliability and service life, reduce maintenance and replacement frequency, and lower cable laying costs. Therefore, they are widely used globally, and their application scope continues to expand, covering multiple fields such as construction, industry, railways, and tunnels.
[0003] However, the currently used ladder-type straight-through cable trays still have some shortcomings:
[0004] 1. The width of existing ladder-type straight-through cable trays is mostly non-adjustable, which cannot meet the laying requirements of different numbers of cables.
[0005] 2. Existing ladder-type straight-through cable trays have the defect of poor cable fixing stability during use.
[0006] To address the aforementioned problems, the inventors proposed a ladder-type straight-through cable tray. Utility Model Content
[0007] The main purpose of this utility model is to address the issues of width adjustment and cable fixing in ladder-type straight-through cable trays, which are characterized by the inability to adjust the width of the trays and the lack of cable fixing.
[0008] To solve the above problems, this utility model proposes a ladder-type straight-through cable tray, including a support bracket, a left cable tray plate, a right cable tray plate, a spring 1, a spring 2, a connecting column, and a knob. The upper end of the support bracket is a mounting top plate. A sliding groove is opened inside the support bracket. Two sliders 1 are slidably arranged at the upper part of the sliding groove. The left end of the left cable tray plate is a left fixing block, and the right end of the right cable tray plate is a right fixing block. The other ends of the left and right fixing blocks are connected to the upper part of the sliders 1 by springs 1. There are multiple support plates between the left and right cable tray plates.
[0009] In one embodiment, each mounting plate has four bolts that secure it to the wall.
[0010] In one embodiment, the support bracket is made of stainless steel.
[0011] In one embodiment, the lower ends of the two sliders are connected to the left and right toothed plates, respectively, and the two toothed plates are connected by gear meshing, thereby adjusting the width of the bridge frame.
[0012] In one embodiment, the rear end of the gear is a connecting post, the rear end of the connecting post is a knob, and the gear and the knob are connected by the connecting post.
[0013] In one embodiment, the knob has a cylindrical structure.
[0014] In one embodiment, a groove is provided inside the support plate, and multiple sliders are slidably arranged inside the groove. A clamping plate is installed at the upper end of each slider, and each pair of sliders is connected to each other by a spring, thereby fixing the cable.
[0015] Beneficial effects: The technical solution of this utility model uses a knob to operate the gear, which is coupled with the left and right gear plates simultaneously, thereby adjusting the width of the cable tray, reducing installation space and cost, and improving the utilization rate of the cable tray; the support plate has a slider with a mounting plate, which fixes the cable, making it compatible with cables of different specifications, reducing the mutual friction between the cable and the support plate, extending the service life of the cable, ensuring the quality of signal transmission, and enhancing the stability and safety of the cable. Attached Figure Description
[0016] 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.
[0017] Figure 1 This is a three-dimensional schematic diagram of the ladder-type straight-through cable tray of this utility model;
[0018] Figure 2 This is a front view of the ladder-type straight-through cable tray of this utility model;
[0019] Figure 3 This is a sectional view of the ladder-type straight-through cable tray of this utility model;
[0020] The annotations in the attached figures are explained as follows:
[0021] 1. Support bracket; 2. Bolt; 3. Mounting top plate; 4. Slider 1; 5. Slider 2; 6. Left cable tray plate; 7. Right cable tray plate; 8. Support plate; 9. Clamping plate; 10. Spring 1; 11. Spring 2; 12. Left toothed plate; 13. Right toothed plate; 14. Gear; 15. Left fixing block; 16. Right fixing block; 17. Connecting column; 18. Slide groove; 19. Knob. Detailed Implementation
[0022] 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.
[0023] To achieve the above-mentioned utility model objectives, such as Figure 1-3 As shown, this utility model provides a ladder-type straight-through cable tray, including a support bracket 1, a left cable tray plate 6, a right cable tray plate 7, a spring 10, a spring 11, a connecting column 17, and a knob 19. The upper end of the support bracket 1 is a mounting top plate 3, and each mounting top plate 3 has four bolts 2. The support bracket 1 is made of stainless steel, and a sliding groove 18 is provided inside the support bracket 1. Two sliders 4 are slidably arranged at the upper part of the sliding groove 18. The lower ends of the two sliders 4 are connected to the left toothed plate 12 and the right toothed plate 13 respectively. The two toothed plates are connected by a gear 14. The rear end of the gear 14 is a connecting post 17, and the rear end of the connecting post 17 is a knob 19. The knob 19 is a cylindrical structure. The gear 14 and the knob 19 are connected by the connecting post 17. The left end of the left bridge plate 6 is the left fixing block 15, and the right end of the right bridge plate 7 is the right fixing block 16. The other ends of the left fixing block 15 and the right fixing block 16 are connected to the upper end of the slider 4 by a spring 10. There are multiple support plates 8 between the left bridge plate 6 and the right bridge plate 7. The support plates 8 have grooves 18 inside. Multiple sliders 5 are slidably arranged inside the grooves 18. A clamping plate 9 is installed at the upper end of each slider 5. Every two sliders 5 are connected by a spring 11 to fix the cable.
[0024] When placing the cable tray, the knob 19 is used to operate the gear 14, which simultaneously couples with the left gear plate 12 and the right gear plate 13. One end of the left gear plate 12 and the right gear plate 13 then slides within the groove 18 inside the support bracket 1, connected to a slider 4. The other end of the slider 4, via a spring 10, slides with the left and right fixing blocks 15 and 16, respectively, thus fixing the cable tray in the appropriate position. This allows for adjustment of the cable tray width, reducing installation space and cost, and improving cable tray utilization. The cable tray can be... The mounting plate 2 at the top of the support bracket 1 is fixed to the wall with four bolts 3, which ensures the stability of the cable tray during use. When a cable is placed in, the slider 2 5 will slide in the groove 18 inside the support plate 8 according to the size of the cable and the compression of the spring 2 11. When it slides to the designated position, the clamping plate 8 on the slider 2 5 will fix the cable from both sides, making it compatible with cables of different specifications, reducing the friction between the cable and the support plate 8, extending the service life of the cable, ensuring the quality of signal transmission, and enhancing the stability and safety of the cable.
[0025] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A ladder-type straight-through cable tray, characterized in that, It includes a support bracket (1), a left cable tray plate (6), a right cable tray plate (7), a spring 1 (10), a spring 2 (11), a connecting column (17), and a knob (19). The upper end of the support bracket (1) is the mounting plate (3). The support bracket (1) has a sliding groove (18) inside. Two sliders 1 (4) are slidably set at the upper part of the sliding groove (18). The left end of the left cable tray plate (6) is the left fixing block (15), and the right end of the right cable tray plate (7) is the right fixing block (16). The other ends of the left fixing block (15) and the right fixing block (16) are connected to the upper part of the slider 1 (4) by spring 1 (10). There are multiple support plates (8) between the left cable tray plate (6) and the right cable tray plate (7).
2. The ladder-type straight-through cable tray as described in claim 1, characterized in that, Each mounting plate (3) has four bolts (2) that secure it to the wall.
3. The ladder-type straight-through cable tray as described in claim 1, characterized in that, The support bracket (1) is made of stainless steel.
4. A ladder-type straight-through cable tray as described in claim 2, characterized in that, The lower ends of the two sliders (4) are connected to the left toothed plate (12) and the right toothed plate (13) respectively. The two toothed plates are connected by a gear (14) to adjust the width of the bridge.
5. A ladder-type straight-through cable tray as described in claim 2, characterized in that, The rear end of the gear (14) is a connecting post (17), and the rear end of the connecting post (17) is a knob (19). The gear (14) and the knob (19) are connected by the connecting post (17).
6. A ladder-type straight-through cable tray as described in claim 2, characterized in that, The knob (19) has a cylindrical structure.
7. A ladder-type straight-through cable tray as described in claim 3, characterized in that, The support plate (8) has a groove (18) inside. Multiple sliders (5) are slidably arranged inside the groove (18). A clamp (9) is installed at the upper end of each slider (5). Every two sliders (5) are connected to each other by springs (11) to fix the cable.