一种组合式多层梯槽一体式桥架
By combining multi-layer ladder-style integrated cable trays, the heat dissipation, wiring, and installation problems of existing single-layer U-shaped cable tray structures are solved. This achieves layered wiring, heat dissipation, and convenient maintenance of cables, reduces costs and complexity, and meets the protection requirements of fire protection scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO XINJIE CABLE TRAY CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-17
AI Technical Summary
Existing fire-fighting cable trays with single-layer U-shaped trunking structures have shortcomings in terms of heat dissipation, wiring space utilization, installation strength, and ease of maintenance. Furthermore, stacked installations increase costs and complexity.
The integrated multi-layer ladder-trough cable tray adopts a multi-layer support structure by setting ladder beams in the U-shaped trough box. The cables are laid in layers, and the vertical spacing between the ladder beams forms a natural air duct. The detachable crossbar design, combined with protective cover plates and fireproof coating, achieves layered wiring and full-enclosed protection.
It improves cable heat dissipation efficiency, meets complex wiring requirements, reduces weight and installation complexity, simplifies maintenance, enhances protection and durability, and reduces material and labor costs.
Smart Images

Figure CN224520564U_ABST
Abstract
Claims
1. A combined multi-layer ladder-groove integrated cable tray, characterized in that: It includes a U-shaped trough box body and ladder beams evenly installed inside the U-shaped trough box body along its length. The U-shaped slot box body includes a main board arranged horizontally at the bottom and side plates arranged vertically on both sides of the main board, and the main board and side plates are integrally formed and connected. The ladder beam includes a pair of symmetrically arranged fixed seats and a crossbar detachably connected to the fixed seats; the fixed seats are fixedly connected to the inner side of the side plate; the crossbar is horizontally mounted on the two adjacent fixed seats of the side plate; The fixed base includes a U-shaped base body; the U-shaped base body includes a base plate arranged in the horizontal direction and wing plates arranged on both sides of the base plate in the vertical direction, the base plate and the wing plates are integrally formed and connected; The crossbar includes a C-shaped main body; the width of the C-shaped main body is less than the distance between the two side plates of the U-shaped seat body; the length of the C-shaped main body is less than the distance between the two side plates of the U-shaped slot box body.
2. The combined multi-layer ladder trough integrated bridge of claim 1, wherein: The top of the side panel has an inward folded edge along the horizontal direction; the side panel has a cover plate connection hole below the inward folded edge; the top of the U-shaped slot box body is threadedly connected to a protective cover plate through the cover plate connection hole.
3. The combined multi-layer ladder trough integrated bridge of claim 1, wherein: The side plate has slot bridging holes at both ends along its length.
4. The combined multi-layer ladder trough integrated bridge of claim 1, wherein: The base plate of the fixed seat is provided with a first connecting hole, and the corresponding C-shaped body of the crossbar is provided with a second connecting hole that matches the first connecting hole; the first connecting hole and the second connecting hole are detachably threadedly connected by flange bolts.
5. The combined multi-layer ladder trough integrated bridge of claim 1, wherein: The mounting base is fixedly connected to the side plate by welding.
6. The combined multi-layer ladder trough integrated bridge of claim 1, wherein: The main body of the U-shaped trough, the ladder beams, and the protective cover are all coated with a fire-retardant coating.