Cable bridge connecting structure
By combining internal and external connectors, the problem of time-consuming and labor-intensive cable tray connections is solved, enabling fast and stable cable tray connections and improving disassembly efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU MINGZHU ELECTRIC GRP CO LTD
- Filing Date
- 2025-03-24
- Publication Date
- 2026-04-21
AI Technical Summary
The existing cable trays require multiple bolts for connection, which makes installation time-consuming and labor-intensive, and inconvenient to disassemble, resulting in low disassembly efficiency.
The system employs a combination of internal and external connectors, and achieves a stable connection between adjacent cable trays through the engagement of reinforcing grooves and reinforcing blocks and threaded fixation. A single bolt is all that is needed for a reliable connection.
It simplifies the operation process, improves installation and disassembly efficiency, has good structural stability, and saves time and effort.
Smart Images

Figure CN224153914U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable tray technology, and in particular to a cable tray connection structure. Background Technology
[0002] Cable trays are classified into various structures such as trough type, tray type, ladder type, and mesh type, and consist of supports, brackets, and installation accessories. Cable trays inside buildings can be installed independently or laid on various building (structure) supports and pipe rack supports. They should be characterized by simple structure, beautiful appearance, flexible configuration, and convenient maintenance. All parts must be galvanized. Cable trays installed outdoors are also permitted.
[0003] Cable trays are usually installed by connecting multiple cable trays together. Existing cable trays are generally connected and fixed by multiple bolts. This connection method is not only time-consuming and labor-intensive, but also inconvenient to disassemble for secondary use, resulting in low installation and disassembly efficiency. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing a cable tray connection structure. This structure solves the problem that existing cable trays are generally connected and fixed with multiple bolts, which is not only time-consuming and labor-intensive, but also inconvenient for disassembly during secondary use, resulting in low installation and disassembly efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A cable tray connection structure includes a cable tray body and an inner connector and an outer connector installed at the connection between two adjacent cable tray bodies. The cable tray body includes a cable tray base plate, and cable tray side plates are symmetrically arranged on both sides of the cable tray base plate. The top of the inner side wall at both ends of the cable tray side plate is provided with a snap-fit plate, and a first reinforcing groove is formed through the bottom of the snap-fit plate on the cable tray side plate.
[0007] The inner connecting component includes two opposing inner connecting side plates located inside the cable tray side plates. The inner connecting side plates have a second reinforcing groove that is connected to the first reinforcing groove on the two cable tray bodies when they are connected end to end. An inner connecting bottom plate is provided between the bottom of the two inner connecting side plates. The bottom end face of the inner connecting bottom plate is provided with a first fixing plate. The first fixing plate has a first fixing hole that allows the fixing bolt to be inserted and fixed by the fixing nut.
[0008] The external connector includes two oppositely arranged external connecting side plates. The inner side wall of the external connecting side plate is provided with a reinforcing block that can be inserted into the first reinforcing groove and the second reinforcing groove when the two adjacent bridge bodies are connected end to end. The bottom of the inner side of the external connecting side plate is provided with an external connecting base plate. The bottom end face of the external connecting base plate away from the external connecting side plate is provided with a second fixing plate. The second fixing plate is provided with a second fixing hole that communicates with the first fixing hole.
[0009] As a further embodiment of this utility model, the top two ends of the cable tray base plate are provided with multiple docking plates, and the bottom end face of the inner connecting base plate is provided with a docking groove for the two docking plates to be inserted when the two adjacent cable tray bodies are connected end to end.
[0010] As a further embodiment of this utility model, both ends of the bottom end face of the cable tray base plate are provided with guide plates, and the top end face of the outer connecting base plate is provided with a guide groove for the guide plates to be inserted.
[0011] As a further embodiment of this utility model, the snap-fit plate has a snap-fit groove on the side near the port of the cable tray side plate, which allows one end of the inner connecting side plate to be inserted.
[0012] As a further embodiment of this utility model, the bottom plate of the cable tray is provided with symmetrical openings at both ends, allowing one end of the first fixing plate to be inserted.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This invention restricts displacement between the inner connector and the two cable tray bodies by engaging the reinforcing block on the outer connector with the first and second reinforcing grooves. This ensures that the inner connector is tightly fixed to the inner wall of the connection between the two adjacent cable tray bodies. Simultaneously, the outer connector is threadedly fixed to the inner connector, preventing it from detaching. This ensures that the outer connector is tightly fixed to the outer wall of the connection between the two adjacent cable tray bodies, thus making the two adjacent cable tray bodies stably and reliably connected together. Compared to existing cable trays that are generally fixed with multiple bolts, this invention uses only one bolt, making the operation simple, the structure stable, and the disassembly and assembly time-saving and labor-saving, thus improving the efficiency of installation and disassembly. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a structural schematic diagram from another perspective of the present invention;
[0017] Figure 3 This is an exploded view of the present invention;
[0018] Figure 4This is a schematic diagram of the structure of the cable tray body of this utility model;
[0019] Figure 5 This is a schematic diagram of the internal connecting component of this utility model;
[0020] Figure 6 This is a structural schematic diagram of the internal connector of this utility model from another perspective;
[0021] Figure 7 This is a schematic diagram of the structure of the external connector of this utility model;
[0022] In the diagram: 1. Cable tray body; 11. Cable tray base plate; 111. Butt joint plate; 112. Guide plate; 113. Opening slot; 12. Cable tray side plate; 121. Snap-fit plate; 122. First reinforcing slot; 123. Snap-fit slot; 2. Inner connector; 21. Inner connecting side plate; 211. Second reinforcing slot; 22. Inner connecting base plate; 221. First fixing plate; 222. First fixing hole; 223. Butt joint slot; 3. Outer connector; 31. Outer connecting side plate; 311. Reinforcing block; 32. Outer connecting base plate; 321. Second fixing plate; 322. Second fixing hole; 323. Guide slot; 4. Fixing bolt; 5. Fixing nut. Detailed Implementation
[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.
[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] Example
[0026] refer to Figures 1-7A cable tray connection structure includes a cable tray body 1 and an inner connector 2 and an outer connector 3 installed at the connection between two adjacent cable tray bodies 1. The cable tray body 1 includes a cable tray base plate 11, and cable tray side plates 12 are symmetrically arranged on both sides of the cable tray base plate 11. The top of the inner side wall at both ends of the cable tray side plate 12 is provided with a snap-fit plate 121, and a first reinforcing groove 122 is provided through the bottom of the snap-fit plate 121 on the cable tray side plate 12.
[0027] The inner connecting member 2 includes two opposing inner connecting side plates 21 located inside the cable tray side plate 12. The inner connecting side plate 21 has a second reinforcing groove 211 that is connected to the first reinforcing groove 122 on the two cable tray bodies 1 when the two adjacent cable tray bodies 1 are connected end to end. An inner connecting bottom plate 22 is fixedly connected between the bottom of the two inner connecting side plates 21. A first fixing plate 221 is fixedly connected to the bottom end face of the inner connecting bottom plate 22. The first fixing plate 221 has a first fixing hole 222 that allows the fixing bolt 4 to be inserted and fixed by the fixing nut 5.
[0028] The external connector 3 includes two oppositely arranged external connector side plates 31. The inner side wall of the external connector side plate 31 is provided with a reinforcing block 311 that can be inserted into the first reinforcing groove 122 and the second reinforcing groove 211 when the two adjacent bridge bodies 1 are connected end to end. An external connector bottom plate 32 is fixedly connected to the inner bottom of the external connector side plate 31. A second fixing plate 321 is fixedly connected to the bottom end face of the external connector bottom plate 32 away from the external connector side plate 31. A second fixing hole 322 communicating with the first fixing hole 222 is opened through the second fixing plate 321.
[0029] Furthermore, the top two ends of the cable tray base plate 11 are provided with multiple docking plates 111, and the bottom end face of the inner connecting base plate 22 is provided with a docking groove 223 for the two docking plates 111 to be inserted when the two adjacent cable tray bodies 1 are connected end to end. The connection strength between the inner connecting member 2 and the two adjacent cable tray bodies 1 is improved by setting the docking groove 223 and the docking plate 111.
[0030] Furthermore, both ends of the bottom end face of the cable tray base plate 11 are provided with guide plates 112, and the top end face of the outer connecting base plate 32 is provided with a guide groove 323 for the guide plates 112 to be inserted. Through the setting of the guide groove 323 and the guide plate 112, the installation of the outer connector 3 and the two cable tray bodies 1 can be guided and connected, and the connection strength between the outer connector 3 and the two adjacent cable tray bodies 1 is improved.
[0031] Furthermore, the snap-fit plate 121 has a snap-fit groove 123 on the side near the port of the cable tray side plate 12, which allows one end of the inner connecting side plate 21 to be inserted. The snap-fit plate 121 can limit the displacement of the inner connecting member 2, and at the same time further strengthen the connection strength between the inner connecting member 2 and the two adjacent cable tray bodies 1.
[0032] Furthermore, the cable tray base plate 11 has symmetrically provided openings 113 at both ends, which allow one end of the first fixing plate 221 to be inserted.
[0033] The working principle of this utility model:
[0034] During installation, the worker first aligns the mating groove 223 at one end of the inner connector 2 with the mating plate 111 on the cable tray body 1 and inserts it in. Simultaneously, the top of one end of the inner connecting side plate 21 is inserted into the snap-fit groove 123 on the cable tray body 1, and one end of the first fixing plate 221 is also inserted into the opening groove 113 on the cable tray body 1. Then, the worker aligns the mating plate 111 on the other cable tray body 1 with the mating groove 223 at the other end of the inner connector 2 and inserts it in. Simultaneously, the top of the other end of the inner connecting side plate 21 is inserted into the snap-fit groove 123 on the cable tray body 1, and the other end of the first fixing plate 221 is also inserted into the opening groove 113 on the cable tray body 1. At this point, the two cable tray bodies 1 are initially fixedly connected, and the second reinforcing groove 211 on the inner connector 2 is connected to the first reinforcing groove 122 on the two cable tray bodies 1. Finally, the worker aligns the guide groove 323 on the outer connector 3 with the guide plate 1 at the connection point of the two cable tray bodies 1. 12. During the insertion, the reinforcing blocks 311 on the outer connector 3 are sequentially inserted into the first reinforcing groove 122 on the cable tray body 1 and the second reinforcing groove 211 on the inner connector 2. At this time, the two second fixing holes 322 on the outer connector 3 are connected to the first fixing hole 222 on the inner connector 2. Finally, the fixing bolts 4 are sequentially inserted into the second fixing holes 322 and the first fixing holes 222 and then fixed by screwing with fixing nuts 5. The reinforcing blocks 311 on the outer connector 3 are engaged in the first reinforcing groove 122 and the second reinforcing groove 211, thereby restricting the displacement between the inner connector 2 and the two cable tray bodies 1, so that the inner connector 2 is tightly fixed to the inner side wall of the connection between the two adjacent cable tray bodies 1. At the same time, the outer connector 3 is threadedly fixed to the inner connector 2, thereby restricting the outer connector 3 from detaching, so that the outer connector 3 is tightly fixed to the outer side wall of the connection between the two adjacent cable tray bodies 1, thereby making the two adjacent cable tray bodies 1 stably and reliably connected together.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0036] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A cable tray connecting structure comprising a cable tray body (1) and an inner connecting member (2) and an outer connecting member (3) installed at the connecting portion of two adjacent cable tray bodies (1), characterized in that: The cable tray body (1) includes a cable tray base plate (11), and cable tray side plates (12) are symmetrically provided on both sides of the cable tray base plate (11). The top of the inner side wall of each end of the cable tray side plate (12) is provided with a snap-fit plate (121), and a first reinforcing groove (122) is provided through the bottom of the snap-fit plate (121) on the cable tray side plate (12). The inner connector (2) includes two opposing inner connector side plates (21) located inside the cable tray side plate (12). The inner connector side plate (21) has a second reinforcing groove (211) that is connected to the first reinforcing groove (122) on the two cable tray bodies (1) when the two adjacent cable tray bodies (1) are connected end to end. An inner connector bottom plate (22) is provided between the bottom of the two inner connector side plates (21). The bottom end face of the inner connector bottom plate (22) has a first fixing plate (221). The first fixing plate (221) has a first fixing hole (222) that can be fixed by fixing nuts (5) after the fixing bolt (4) is inserted. The external connector (3) includes two oppositely arranged external connecting side plates (31). The inner side wall of the external connecting side plate (31) is provided with a reinforcing block (311) that can be inserted into the first reinforcing groove (122) and the second reinforcing groove (211) when the two adjacent cable tray bodies (1) are connected end to end. The bottom of the inner side of the external connecting side plate (31) is provided with an external connecting bottom plate (32). The bottom end face of the external connecting bottom plate (32) away from the external connecting side plate (31) is provided with a second fixing plate (321). The second fixing plate (321) is provided with a second fixing hole (322) that communicates with the first fixing hole (222).
2. The cable tray connection structure of claim 1, wherein: The top two ends of the cable tray base plate (11) are provided with multiple docking plates (111), and the bottom end face of the inner connecting base plate (22) is provided with a docking groove (223) for the two docking plates (111) to be inserted when the two adjacent cable tray bodies (1) are connected end to end.
3. The cable tray connection structure of claim 1, wherein: The bottom end face of the cable tray base plate (11) is provided with guide plates (112) at both ends, and the top end face of the outer connecting base plate (32) is provided with a guide groove (323) for the guide plates (112) to be inserted.
4. The cable tray connection structure of claim 1, wherein: The snap-fit plate (121) has a snap-fit groove (123) on the side near the port of the cable tray side plate (12) for inserting one end of the inner connecting side plate (21).
5. The cable tray connection structure of claim 1, wherein: The cable tray base plate (11) has symmetrically provided openings (113) at both ends, which allow one end of the first fixing plate (221) to be inserted.