Combined bridge sleeve box for crossing of multiple rows of T-shaped bridges
By designing a modular cable tray box, the problems of space occupation and cost waste when multiple rows of T-shaped cable trays intersect are solved, achieving the effect of flexible adjustment and cost saving, and adapting to various cable tray intersection scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional methods for intersecting multiple rows of T-shaped cable trays have problems such as large space occupation, increased cable usage, unsightly construction results, difficulty in arranging supports and hangers, and cost waste. In addition, existing prefabricated cable tray boxes are expensive, inflexible, and prone to omission.
Design a modular cable tray housing, including a base plate, side plates, fixing brackets, and connecting components, which are fixed by bolts and nuts. It can adapt to different numbers and sizes of cable trays, flexibly adjust the size of the housing, and simplify manufacturing and assembly.
It reduces space waste, lowers cable usage, improves construction aesthetics, saves labor costs, adapts to various cable tray intersection scenarios, and reduces manufacturing costs.
Smart Images

Figure CN121863273A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building construction technology, specifically to a combined cable tray box for multiple rows of T-shaped cable trays crossing each other. Background Technology
[0002] Generally, when there are three or more T-shaped cable trays crossing each other, the traditional method is to alternately flip them up or down layer by layer. This method has several drawbacks: First, it occupies a significant amount of height. If there is ample space in the bending area, flipping them up or down layer by layer is feasible, but if the space in the bending area is limited, some cable trays cannot be bent. Second, bending increases the amount of cable used. When there are many bending locations and quantities in a project, the extra cable usage becomes more noticeable, which is not conducive to cost reduction and efficiency improvement. Third, the construction effect is not aesthetically pleasing. Using the traditional method, bending multiple rows of T-shaped cable trays crossing each other makes the cable trays in this area look messy and less neat compared to other straight cable trays, affecting the overall visual effect. Fourth, it is not conducive to the arrangement of supports and hangers. The traditional layer-by-layer bending not only occupies a lot of height but also reduces the length of the straight sections of the cable trays. As a result, when arranging supports and hangers, some cable trays are often not on the supports and hangers. Arranging them separately is wasteful of supports and hangers, which is time-consuming and labor-intensive, and even less conducive to cost savings.
[0003] Currently, some manufacturers can produce prefabricated cable tray cassettes of fixed specifications, but there are several shortcomings. First, the cost of producing prefabricated cable tray cassettes separately is relatively high, which is not conducive to cost savings. Second, if the cable tray layout changes, the prefabricated cable tray cassettes of fixed specifications cannot be flexibly adjusted. Third, when there are many T-shaped intersections of cable trays in a project, there may be omissions, resulting in a waste of manpower. Fourth, the entry of a large number of prefabricated cable tray cassettes into the site will also occupy construction land or warehouse, and storage costs will also increase. Summary of the Invention
[0004] The purpose of this invention is to provide a combined cable tray cassette for cross-shaped multi-row T-shaped cable trays, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a combined cable tray box for multiple rows of T-shaped cable trays crossing, comprising: a base plate, a straight section of cable tray, a first T-shaped section of cable tray, and a second T-shaped section of cable tray;
[0006] Side plate one is vertically fixed to the upper left and right sides of the base plate by bolts, and side plate two is vertically fixed to the upper front and rear sides of the base plate by bolts. The height of side plate two is half the height of side plate one.
[0007] The straight section cable tray is provided in several parts. Each straight section cable tray has a limiting groove and an overlapping groove on the front and rear sides of its upper end. The overlapping groove is located between the two limiting grooves. Several straight section cable trays pass through the bottom plate and the second side plate, and the limiting groove and the lower end of the second side plate are engaged.
[0008] The T-shaped cable tray 1 is fixed to the outer end of a side plate 1 by a fixing angle bracket 2, and the inner end of the T-shaped cable tray 1 is connected to the inner end of one of the straight cable trays. The T-shaped cable tray 2 is fixed to the outer end of one of the side plates 1 by a fixing angle bracket 3, and its inner end is connected to other straight cable trays respectively by connecting components.
[0009] Preferably, the base plate is a 2mm thick steel plate with holes. The material of the base plate can be determined according to the material of the cable tray connected to it. There are 5mm diameter holes every 50mm on the base plate to facilitate the bolts to pass through and then use matching nuts for fixing. The length and width of the base plate can be determined by adding 100mm to the distance between the farthest steel plates of the straight section cable tray and the T-shaped section cable tray one and T-shaped section cable tray two.
[0010] Preferably, a cable tray box is formed between the first side plate, the second side plate, and the bottom plate. A cover plate is provided at the upper end of the cable tray box. Fixing plates are fixedly installed at both the front and rear ends of the cover plate. When the cover plate is closed on the upper end of the cable tray box, the fixing plate is located on the outside of the second side plate and is fixedly connected to the fixing plate by fixing bolts.
[0011] Preferably, a bolt is arranged every 200mm on the side plate, the bolt passes through the hole in the base plate, and is fixed with a matching nut.
[0012] Preferably, the first side plate and the second side plate are fixedly connected by a fixing bracket.
[0013] Preferably, one of the side plates has a lower end with a corresponding T-shaped cable tray 1 interface, and the other end of the side plate has an upper end with a corresponding T-shaped cable tray 2 docking groove. The lower end of the T-shaped cable tray 1 is located on the base plate and is connected and aligned with the interface. One side of the fixing bracket 2 is fixedly connected to the side wall of the T-shaped cable tray 1 by bolts, and the other side is fixedly connected to the side wall of the side plate 1 by bolts.
[0014] Preferably, the second T-shaped cable tray is inserted into the docking groove, with one end located inside the cable tray housing. The upper end of the second T-shaped cable tray is flush with the upper end of the first side plate and the second side plate. One side of the fixing bracket three is fixedly connected to the side wall of the second T-shaped cable tray by bolts, and the other side is fixedly connected to the side wall of the first side plate by bolts.
[0015] Preferably, the connecting component includes a strip-shaped connecting port, a sloping side plate, a connecting plate, a sloping bottom plate, and adjusting bolts. The strip-shaped connecting port is opened on the inner end front and rear side walls of the T-shaped section cable tray. The sloping side plate is provided with fixing holes, and the sloping bottom plate is fixedly installed between the bottom ends of the two sloping side plates.
[0016] Preferably, bolt holes are provided on the side wall of the connecting plate, and adjusting bolts fix one end of the connecting plate to the inclined side plate, while the other end of the connecting plate is fixed by adjusting bolts passing through the strip-shaped connecting port.
[0017] Preferably, an abutment plate is fixedly installed at the lower end of the inclined bottom plate, and the abutment plate abuts against the outer wall of the overlapping groove.
[0018] Compared with the prior art, the beneficial effects of the present invention are:
[0019] This invention allows for flexible adjustment of the junction box size based on the number and dimensions of cable trays, reducing space waste and facilitating cable distribution. Furthermore, the cable tray junction box is simple to process, manufacture, and assemble, allowing construction workers to flexibly create it according to the actual installation conditions of the cable trays on site. Utilizing simple, readily available engineering materials results in lower costs; assembly according to site requirements saves time and effort, reducing labor costs; and compared to factory-produced cable tray junction boxes, it offers greater flexibility and adjustability, thus possessing significant practical value. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention.
[0022] Figure 3 This is a schematic diagram of the cover plate removal structure of the present invention;
[0023] Figure 4 This is a schematic diagram of the second cover plate removal structure of the present invention;
[0024] Figure 5 This is a schematic diagram of the unfolded structure of side plate one and side plate two of the present invention;
[0025] Figure 6 This is a schematic diagram of the unfolded structure of the T-section cable tray one and T-section cable tray two with the side plate one of the present invention.
[0026] In the diagram: 1. Base plate; 2. Side plate one; 3. Side plate two; 4. Fixing bracket one; 5. Cover plate; 6. Fixing plate; 7. Fixing bolt; 8. Straight section cable tray; 9. Limiting groove; 10. Overlap groove; 11. Butt joint; 12. Butt joint groove; 13. T-shaped section cable tray one; 14. Fixing bracket two; 15. T-shaped section cable tray two; 16. Fixing bracket three; 17. Strip connection port; 18. Sloping side plate; 19. Fixing hole; 20. Connecting plate; 21. Adjusting bolt; 22. Sloping bottom plate; 23. Contact plate. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. 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.
[0028] Please see Figures 1 to 6 This invention provides a technical solution: a combined cable tray cassette for multiple rows of T-shaped cable trays, comprising: a base plate 1, straight cable tray sections 8, T-shaped cable tray section one 13, and T-shaped cable tray section two 15; side plates one 2 are vertically fixed to the upper left and right sides of the base plate 1 by bolts, with a bolt arranged every 200mm on the side plates one 2, the bolts passing through holes in the base plate 1 and fixed with matching nuts; side plates two 3 are vertically fixed to the upper front and rear sides of the base plate 1 by bolts, the height of side plates two 3 being half the height of side plates one 2; the base plate 1 is a 2mm thick steel plate with holes, and the material of the base plate 1 can be determined according to the material of the cable trays connected to it; T-shaped... Section 13 of the cable tray is fixed to the outer end of a side plate 2 by fixing bracket 2 14. Side plate 2 and side plate 3 are fixedly connected by fixing bracket 4. One side of fixing bracket 4 is fixedly connected to the side wall of side plate 2 by bolts, and the other side is fixedly connected to the side wall of side plate 3 by bolts, thus fixing side plate 3 between side plates 2. There are 5mm diameter holes at 50mm intervals on the base plate 1 to facilitate the bolts to pass through. Then, matching nuts are used for fixing, thus fixing side plate 2 to the upper end of the base plate 1. The length and width of the base plate 1 can be determined by adding 100mm to the distance between the farthest cable tray steel plates of the straight section 8, T-shaped section 13 and T-shaped section 15.
[0029] Several straight cable trays 8 are provided. Each straight cable tray 8 has a limiting groove 9 and an overlapping groove 10 on the front and rear sides of its upper end. The overlapping groove 10 is located between two limiting grooves 9, which provides space for the placement of bending parts and facilitates the diversion of cables in the cable tray. The depth of the overlapping groove 10 is 1 / 2 of the height of the straight cable tray 8. Several straight cable trays 8 pass through the bottom plate 1 and the second side plate 3, and the limiting groove 9 and the lower end of the second side plate 3 are engaged to fix the straight cable tray 8.
[0030] T-shaped cable tray 13 is fixed to the side wall of one of the side plates 2 3, and the inner end of T-shaped cable tray 13 is connected to the inner end of one of the straight cable trays 8. One side plate 2 has a corresponding interface 11 for T-shaped cable tray 13 on its lower side. The lower end of T-shaped cable tray 13 is located on the base plate 1 and is connected and aligned with the interface 11. One side of the fixing bracket 2 14 is fixedly connected to the side wall of T-shaped cable tray 13 by bolts, and the other side is fixedly connected to the side wall of side plate 2 by bolts. T-shaped cable tray 13 is fixed to the side wall of side plate 2 and is connected to one of the straight cable trays 8, which facilitates cable laying.
[0031] T-shaped cable tray 2 15 is fixed to the outer end of one of the side plates 1 2 by fixing angle bracket 3 16, and the inner end is connected to other straight cable tray sections 8 by connecting parts. The other end of the side plate 1 2 has a corresponding docking groove 12 for T-shaped cable tray 2 15. T-shaped cable tray 2 15 is inserted into the docking groove 12, with one end located in the cable tray box. The upper end of T-shaped cable tray 2 15 is flush with the upper ends of side plate 1 2 and side plate 2 3. One side of fixing angle bracket 3 16 is fixedly connected to the side wall of T-shaped cable tray 2 15 by bolts, and the other side is fixedly connected to the side wall of side plate 1 2 by bolts, thus fixing T-shaped cable tray 2 15 and side plate 1 2 together.
[0032] The connecting components include a strip-shaped connecting port 17, a sloping side plate 18, a connecting plate 20, a sloping bottom plate 22, and an adjusting bolt 21. The strip-shaped connecting port 17 is opened on the inner end front and rear side walls of the T-shaped section cable tray 15. The sloping side plate 18 is provided with a fixing hole 19. The sloping bottom plate 22 is fixedly installed between the bottom ends of the two sloping side plates 18. The sloping side plates 18 and the sloping bottom plate 22 form a U-shaped channel, which is connected to the straight section cable tray 8 through the channel, which facilitates the laying of cables.
[0033] A contact plate 23 is fixedly installed at the lower end of the inclined bottom plate 22. Bolt holes are opened on the side wall of the connecting plate 20. The adjusting bolt 21 fixes one end of the connecting plate 20 to the inclined side plate 18. The other end of the connecting plate 20 is fixed by the adjusting bolt 21 passing through the strip connection port 17. By moving the position of the adjusting bolt 21 in the strip connection port 17, the inclined side plate 18 can be finely adjusted so that the lower end of the inclined side plate 18 overlaps the upper end of the overlap groove 10, and at the same time, the contact plate 23 and the outer wall of the overlap groove 10 abut against each other, thereby fixing the connecting parts. The cable can be laid in the straight section cable tray 8 and the T-shaped section cable tray through the connecting parts.
[0034] A cable tray box is formed between side plate 1 (2), side plate 2 (3), and bottom plate 1. A cover plate 5 is provided at the upper end of the cable tray box. Fixing plates 6 are fixedly installed at both the front and rear ends of the cover plate 5. When the cover plate 5 is closed on the upper end of the cable tray box, the fixing plate 6 is located outside the side plate 2 (3) and is fixedly connected to the fixing plate 6 by fixing bolts 7, thus covering the upper end of the cable tray box.
[0035] This device overcomes the shortcomings of traditional multi-row T-section cable trays that require bending layer by layer. The new modular cable tray box can reduce the bending of multi-row T-section cable trays. The cable tray box can be flexibly assembled and adjusted according to the number and size of the cable trays, adapting to most scenarios of multi-row T-section cable trays crossing each other.
[0036] Cable tray cassettes can be made using common engineering materials such as perforated and non-perforated steel plates, screws and matching nuts, and cable tray cover plates. It is advisable that the steel plate of the cable tray cassette is made of the same material as the cable tray, and pre-made cable trays available on the construction site can be used for processing.
[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
Claims
1. A combined cable tray cassette for multiple rows of T-shaped cable trays crossing, characterized in that: include: Base plate (1), straight section cable tray (8), T-shaped section cable tray one (13) and T-shaped section cable tray two (15); The upper left and right sides of the base plate (1) are vertically fixed with side plate one (2) by bolts, and the upper front and rear sides of the base plate (1) are vertically fixed with side plate two (3) by bolts. The height of side plate two (3) is half the height of side plate one (2). The straight section cable tray (8) is provided in several ways. Each straight section cable tray (8) has a limiting groove (9) and an overlapping groove (10) on the front and rear sides of its upper end. The overlapping groove (10) is located between the two limiting grooves (9). Several straight section cable trays (8) pass through the bottom plate (1) and the second side plate (3), and the limiting groove (9) and the lower end of the second side plate (3) are engaged. The T-shaped cable tray 1 (13) is fixed to the outer end of a side plate 1 (2) by fixing angle bracket 2 (14), and the inner end of the T-shaped cable tray 1 (13) is connected to the inner end of one of the straight cable trays (8). The T-shaped cable tray 2 (15) is fixed to the outer end of one of the side plates 1 (2) by fixing angle bracket 3 (16), and the inner end is connected to other straight cable trays (8) by connecting components.
2. A combined cable tray cassette for multi-row T-shaped cable tray intersections according to claim 1, characterized in that: The base plate (1) is a 2mm thick steel plate with holes. The material of the base plate (1) can be determined according to the material of the cable tray connected to it. There are 5mm diameter holes every 50mm on the base plate (1) to facilitate the bolts to pass through and then use matching nuts for fixing. The length and width of the base plate (1) can be determined by adding 100mm to the distance between the farthest cable tray steel plates of the straight section cable tray (8), T-section cable tray one (13), and T-section cable tray two (15).
3. A combined cable tray cassette for multiple rows of T-shaped cable trays crossing, as described in claim 1, characterized in that: The cable tray box is formed between the first side plate (2), the second side plate (3), and the bottom plate (1). The upper end of the cable tray box is provided with a cover plate (5). The front and rear ends of the cover plate (5) are fixedly installed with fixing plates (6). When the cover plate (5) is closed on the upper end of the cable tray box, the fixing plate (6) is located outside the second side plate (3) and is fixedly connected to the fixing plate (6) by fixing bolts (7).
4. A combined cable tray cassette for multi-row T-shaped cable tray intersections according to claim 1, characterized in that: A bolt is arranged every 200mm on the side plate (2), and the bolt passes through the hole on the base plate (1) and is fixed with a matching nut.
5. A combined cable tray cassette for multi-row T-shaped cable tray intersections according to claim 1, characterized in that: The side plate 1 (2) and the side plate 2 (3) are fixedly connected by a fixing bracket 1 (4).
6. A combined cable tray cassette for multi-row T-shaped cable tray intersections according to claim 1, characterized in that: One of the side plates (2) has a lower end with a corresponding interface (11) for the T-shaped cable tray (13), and the other end of the side plate (2) has a corresponding groove (12) for the T-shaped cable tray (15). The lower end of the T-shaped cable tray (13) is located on the base plate (1) and is connected and aligned with the interface (11). One side of the fixing bracket (14) is fixedly connected to the side wall of the T-shaped cable tray (13) by bolts, and the other side is fixedly connected to the side wall of the side plate (2) by bolts.
7. A combined cable tray cassette for multi-row T-shaped cable tray intersections according to claim 1, characterized in that: The T-shaped cable tray 2 (15) is inserted into the docking groove (12), with one end located inside the cable tray box. The upper end of the T-shaped cable tray 2 (15) is flush with the upper ends of the side plate 1 (2) and the side plate 2 (3). One side of the fixing angle bracket 3 (16) is fixedly connected to the side wall of the T-shaped cable tray 2 (15) by bolts, and the other side is fixedly connected to the side wall of the side plate 1 (2) by bolts.
8. A combined cable tray cassette for multi-row T-shaped cable tray intersections according to claim 1, characterized in that: The connecting components include a strip-shaped connecting port (17), a sloping side plate (18), a connecting plate (20), a sloping bottom plate (22), and an adjusting bolt (21). The strip-shaped connecting port (17) is opened on the inner end front and rear side walls of the T-shaped section bridge frame (15). The sloping side plate (18) is provided with a fixing hole (19). The sloping bottom plate (22) is fixedly installed between the bottom ends of the two sloping side plates (18).
9. A combined cable tray cassette for multi-row T-shaped cable tray intersections according to claim 8, characterized in that: Bolt holes are provided on the side wall of the connecting plate (20). The adjusting bolt (21) fixes one end of the connecting plate (20) to the inclined side plate (18), and the other end of the connecting plate (20) is fixed by the adjusting bolt (21) passing through the strip connection port (17).
10. A combined cable tray cassette for multi-row T-shaped cable tray intersections according to claim 9, characterized in that: A contact plate (23) is fixedly installed at the lower end of the inclined bottom plate (22), and the contact plate (23) abuts against the outer wall of the overlapping groove (10).