Welding ladder type bridge wire duct
By employing multiple sets of horizontal support beams and reinforcing ribs in the ladder-type cable tray, combined with the fixing method of the top cover and bottom plate components, the problem of easy weld detachment at the weld joints is solved, the connection strength and stability are improved, and the safety and sealing of the cable tray are ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YOUMING GRP CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-01
AI Technical Summary
The welded joints of existing ladder-type cable trays are susceptible to thermal stress, which can lead to metal deformation and fatigue, and may cause weld detachment, affecting the stability and safety of the cable tray.
Multiple sets of horizontal support beams are welded to the L-shaped structure of the side frame, and ribs are added to the side frame and horizontal support beams. Combined with the design of the top cover and bottom plate components, the connection strength is enhanced, and fixation and sealing are achieved through snap-fit and threaded connections.
This improved the connection strength and stability of the cable tray, prevented the horizontal support beams from falling off, and ensured the safety and sealing of the cable tray.
Smart Images

Figure CN224191584U_ABST
Abstract
Description
A welded ladder-type cable tray Technical Field
[0001] This utility model relates to the field of cable tray technology, specifically to a welded ladder-type cable tray trough. Background Technology
[0002] Cable trays are metal profiles used for laying, protecting and managing cables and other electrical wires. Ladder-type cable trays are a common cable routing system, with a structure similar to ladder steps, consisting of horizontal support beams and vertical support plates.
[0003] The existing ladder-type cable tray consists of side frames and horizontal support beams. The ends of the horizontal support beams and the side walls of the side frames are fixed together by welding. The welded joints are susceptible to thermal stress, which can lead to metal deformation and fatigue, resulting in a decrease in strength. After long-term use, the welded joints are prone to detachment, which can cause the horizontal support beams to fall off, affecting the stability and safety of the cable tray.
[0004] Therefore, a welded ladder-type cable tray trough is proposed. Summary of the Invention
[0005] The purpose of this utility model is to provide a welded ladder-type cable tray trough to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0007] A welded ladder-type cable tray includes side frames and a top cover. Multiple sets of horizontal support beams are welded and installed between two sets of side frames. The bottom end of the side frame has an L-shaped structure. The horizontal support beams are located on the L-shaped structure, and the top surface of the horizontal support beams has a through groove. Reinforcing ribs are welded to the front and rear side walls of the horizontal support beams and the L-shaped structure at the bottom end of the side frame. A bottom plate assembly is provided on the bottom surface of the side frame.
[0008] Furthermore, the side frame has uniformly stamped grooves on its surface, and square holes are opened on its surface. The side frame also has snap-fit grooves on its surface and threaded holes on its top surface.
[0009] Furthermore, the top cover has assembly buckles on both side walls and mounting holes on the top surface.
[0010] Furthermore, the base plate assembly includes a threaded post fixedly installed on the bottom surface of the L-shaped structure at the bottom end of the side frame, and a bottom cover is fitted on the surface of the threaded post. A nut is threaded onto the bottom end of the threaded post to adjust the distance between the bottom cover and the bottom end of the side frame.
[0011] Furthermore, when the top cover and side frame are installed, the assembly buckles on both sides of the top cover are engaged with the snap-fit grooves on the surface of the side frame.
[0012] Furthermore, when the side frame is installed vertically, after the top cover and the side frame are snapped together, bolts are threaded into the mounting holes on the surface of the top cover and the threaded holes on the top surface of the side frame to fix the top cover and the side frame in place.
[0013] The beneficial effects of this utility model are as follows:
[0014] Multiple sets of horizontal support beams are welded to the end faces of the two sets of side frames. At this time, the horizontal support beams are located on the L-shaped structure at the bottom of the side frames. The L-shaped structure at the bottom of the side frames provides vertical support for the horizontal support beams. Reinforcing ribs are welded to the side frames and horizontal support beams to increase the connection strength between the side frames and horizontal support beams. The top of the side frames is sealed by the top cover and the top cover of the side frames. The bottom of the side frames is sealed by the bottom plate assembly. Attached Figure Description
[0015] Figure 1 is a three-dimensional structural diagram of this utility model;
[0016] Figure 2 is a side view of this utility model;
[0017] Figure 3 is a partial structural schematic diagram of this utility model;
[0018] Figure 4 is a partial sectional view of this utility model;
[0019] Figure 5 is an enlarged view of part A of this utility model.
[0020] Reference numerals: 1. Side frame; 11. Pressure groove; 12. Square hole; 13. Snap-fit groove; 14. Threaded hole; 2. Horizontal support beam; 21. Through groove; 3. Top cover; 31. Assembly buckle; 32. Mounting hole; 4. Reinforcing rib; 5. Base plate assembly; 501. Threaded post; 502. Bottom cover; 503. Nut. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] As shown in Figures 1 to 5, a welded ladder-type cable tray includes a side frame 1 and a top cover 3. Multiple sets of horizontal support beams 2 are welded and installed between the two sets of side frames 1. The bottom end of the side frame 1 has an L-shaped structure. The horizontal support beams 2 are located on the L-shaped structure. A through groove 21 is opened on the top surface of the horizontal support beams 2. Reinforcing ribs 4 are welded to the front and rear side walls of the horizontal support beams 2 and the L-shaped structure at the bottom end of the side frame 1. A bottom plate assembly 5 is provided on the bottom surface of the side frame 1. More specifically, multiple sets of horizontal support beams 2 are welded to the end faces of the two sets of side frames 1. At this time, the horizontal support beams 2 are located on the L-shaped structure at the bottom of the side frame 1. The L-shaped structure at the bottom of the side frame 1 provides vertical support for the horizontal support beams 2. The reinforcing ribs 4 are welded to the side frame 1 and the horizontal support beams 2, thereby increasing the connection strength between the side frame 1 and the horizontal support beams 2. The top cover 3 and the top cover of the side frame 1 can seal the top of the side frame 1. The bottom plate assembly 5 at the bottom of the side frame 1 can seal the bottom of the side frame 1.
[0026] The side frame 1 has uniformly stamped grooves 11 on its surface, and square holes 12 are formed on its surface. It also has snap-fit grooves 13 and threaded holes 14 on its top surface. More specifically, the multiple sets of grooves 11 on the surface of the side frame 1 increase its structural strength, and the square holes 12 allow for heat dissipation of the wires inside the side frame 1.
[0027] The top cover 3 has assembly buckles 31 on both sides of its side walls, and mounting holes 32 are provided on the top surface of the top cover 3. More specifically, the top cover 3 and the side frame 1 are snapped together and fixed by the assembly buckles 31 on both sides of the top cover 3 and the snap-fit grooves 13 on the surface of the side frame 1.
[0028] The base plate assembly 5 includes a threaded post 501 fixedly mounted on the bottom surface of the L-shaped structure at the bottom end of the side frame 1. A bottom cover 502 is fitted onto the surface of the threaded post 501, and a nut 503 is threaded onto the bottom end of the threaded post 501 to adjust the distance between the bottom cover 502 and the bottom end of the side frame 1. More specifically, by fitting the bottom cover 502 onto the surface of the threaded post 501 and threading the nut 503 onto the surface of the threaded post 501, rotating the nut 503 causes it to move vertically along the threaded post 501, thereby adjusting the distance between the bottom cover 502 and the bottom end of the side frame 1. This allows for adjustment of the gap between the bottom cover 502 and the bottom end of the side frame 1, facilitating heat dissipation for the wires inside the side frame 1.
[0029] When the top cover 3 and the side frame 1 are installed, the assembly buckles 31 on both sides of the top cover 3 are engaged with the snap-fit grooves 13 on the surface of the side frame 1. More specifically, the top cover 3 and the side frame 1 are secured by engaging the assembly buckles 31 on both sides of the top cover 3 with the snap-fit grooves 13 on the surface of the side frame 1.
[0030] When the side frame 1 is installed vertically, after the top cover 3 and the side frame 1 are snapped together, bolts are threaded into the mounting holes 32 on the surface of the top cover 3 and the threaded holes 14 on the top surface of the side frame 1 to fix the top cover 3 and the side frame 1 in place. More specifically, when the side frame 1 is installed vertically, the top cover 3 is fixed to the side frame 1 by snapping together the top cover 3 and the side frame 1, and the bolts are threaded into the mounting holes 32 on the surface of the top cover 3 and the threaded holes 14 on the top surface of the side frame 1, thus preventing the top cover 3 from sliding on the surface of the side frame 1.
[0031] In summary: Multiple sets of horizontal support beams 2 are welded to the end faces of the two sets of side frames 1. At this time, the horizontal support beams 2 are located on the L-shaped structure at the bottom of the side frame 1. The L-shaped structure at the bottom of the side frame 1 provides vertical support for the horizontal support beams 2. The reinforcing ribs 4 are welded to the side frame 1 and the horizontal support beams 2, thereby increasing the connection strength between the side frame 1 and the horizontal support beams 2. The top cover 3 and the top cover of the side frame 1 can seal the top of the side frame 1. The bottom plate assembly 5 at the bottom of the side frame 1 can seal the bottom of the side frame 1.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A welded ladder-type cable tray, characterized in that, Includes side frame (1) and top cover (3). Multiple sets of horizontal support beams (2) are welded and installed between the two sets of side frame (1). The bottom end of the side frame (1) is L-shaped. The horizontal support beam (2) is located on the L-shaped structure. The top surface of the horizontal support beam (2) is provided with a through groove (21). The front and rear side walls of the horizontal support beam (2) and the L-shaped structure at the bottom end of the side frame (1) are all welded with reinforcing ribs (4). The bottom surface of the side frame (1) is provided with a bottom plate assembly (5).
2. The welded ladder-type cable tray trough according to claim 1, characterized in that, The side frame (1) has a uniformly stamped groove (11) on its surface, and a square hole (12) is opened on the surface of the side frame (1). The side frame (1) has a snap-fit groove (13) on its surface, and a threaded hole (14) is opened on the top surface of the side frame (1).
3. The welded ladder-type cable tray trough according to claim 2, characterized in that, The top cover (3) has assembly buckles (31) on both sides of its side walls, and mounting holes (32) are provided on the top surface of the top cover (3).
4. The welded ladder-type cable tray trough according to claim 1, characterized in that, The base plate assembly (5) includes a threaded post (501) fixedly installed on the bottom surface of the L-shaped structure at the bottom end of the side frame (1), and a bottom cover (502) is fitted on the surface of the threaded post (501). A nut (503) is threaded on the bottom end of the threaded post (501) so as to adjust the distance between the bottom cover (502) and the bottom end of the side frame (1) through the nut (503).
5. A welded ladder-type cable tray trough according to claim 3, characterized in that, When the top cover (3) and the side frame (1) are installed, the assembly buckles (31) on both sides of the top cover (3) are engaged with the snap-fit grooves (13) on the surface of the side frame (1).
6. A welded ladder-type cable tray trough according to claim 3, characterized in that, When the side frame (1) is installed vertically, after the top cover (3) and the side frame (1) are snapped together, the mounting holes (32) on the surface of the top cover (3) and the threaded holes (14) on the top surface of the side frame (1) are threaded with bolts to fix the top cover (3) and the side frame (1).