A cable tray connector

By designing cable tray connectors, flexible splicing and stable fixing of cable trays are achieved, solving the problem of cable tray length matching, improving installation efficiency and space utilization, and ensuring the safety and reliability of electrical systems.

CN224570806UActive Publication Date: 2026-07-28HENAN LANLI ELECTRICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN LANLI ELECTRICAL EQUIP CO LTD
Filing Date
2025-06-25
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

Existing cable trays are difficult to precisely match with the actual wiring distance of electrical equipment during installation, resulting in material waste and installation inconvenience. Furthermore, the lack of effective connection structures affects construction efficiency and the safety and reliability of electrical systems.

Method used

A cable trough connector was designed. By setting plug blocks and slots at both ends of the cable trough and equipping it with a locking connection mechanism, the cable trough can be flexibly spliced. Combined with the fixing holes and fixing shaft on the mounting plate, the cable trough can be flexibly assembled and stably fixed.

Benefits of technology

It enables flexible adjustment of cable tray length, reduces material waste, improves installation efficiency and stability, optimizes the internal space utilization of the distribution cabinet, and facilitates the layout of electrical equipment and subsequent maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of wire duct, especially a cable duct connector, which comprises a mounting plate and a wire duct, the mounting plate is provided with a plurality of fixing holes distributed in matrix form; the bottom of the wire duct is connected with a fixing shaft inserted into the fixing hole, the wire duct penetrates through the left and right ends, the bottom of one end is provided with an insertion block, the other end is provided with an insertion slot concave along the end face, the insertion block and the insertion slot of the adjacent two wire ducts are connected through insertion, and the insertion slot is provided with a locking connection mechanism connected with the insertion block. The utility model sets the insertion block and the insertion slot at both ends of the wire duct, so that the wire ducts can be flexibly spliced, the appropriate length can be quickly assembled according to the electrical equipment layout and the cable direction requirement, the material can be reasonably used, the material waste caused by cutting can be reduced, and the installation efficiency and stability are improved through the insertion connection of the fixing shaft and the fixing hole of the wire duct and the mounting plate.
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Description

Technical Field

[0001] This utility model relates to the field of cable tray technology, and in particular to a cable tray connector. Background Technology

[0002] During the use of power distribution cabinets, the cable connections between electrical equipment need to be rationally planned and laid out. Cable trays are one of the commonly used cable management tools for planning the cable routing between electrical equipment. Cable trays can provide a channel for cables between equipment, making it easier to lay, fix and organize cables, so that cables can be neatly arranged and avoid problems such as signal interference and poor heat dissipation caused by messy cables. This can optimize the internal space of the power distribution cabinet and improve the reliability and maintainability of the electrical system.

[0003] Cable trays used in distribution cabinets are usually made of insulating materials, which have a certain strength and durability. They can protect cables from external influences, prevent cables from mechanical damage and chemical corrosion, and also play a role in fire prevention and waterproofing, ensuring the safe operation of electrical systems.

[0004] Existing cable trays, due to their fixed length, are difficult to precisely match with the actual wiring distance between electrical equipment during installation. If the cable tray is too long, it needs to be cut, resulting in some scraps being wasted. If it is too short, it cannot meet the cable laying requirements, leading to exposed cables and affecting the safety and reliability of the electrical system. When it is necessary to adjust the spacing of electrical equipment or add new electrical equipment, the cut cable trays are difficult to adapt to the new layout requirements. At this time, either the cable trays need to be cut again or multiple sections need to be spliced ​​to meet the adjusted wiring requirements. Frequent cutting reduces the mechanical strength of the cable trays. Due to the lack of an effective connection structure between cable trays, when splicing cable trays, multiple sections need to be fixedly connected to the distribution cabinet separately, increasing the installation workload, reducing construction efficiency, and being unsightly. Utility Model Content

[0005] The purpose of this invention is to provide a cable tray connector to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A cable trough connector includes a mounting plate and a cable trough, wherein the mounting plate is provided with a plurality of fixing holes arranged in a matrix. The bottom of the wire groove is connected to a fixed shaft that is inserted into a fixed hole. The left and right ends of the wire groove are through, and a plug-in block is installed at the bottom of one end. The other end is provided with a slot that is recessed along the end face. Adjacent wire grooves are connected to each other by plug-in blocks and slots arranged opposite to each other. The slot is provided with a locking connection mechanism that engages with the plug-in block. The top of the trough is connected to an end cap. The left and right ends of the end cap are respectively provided with a hinge shaft and a connecting block. Adjacent end caps are connected to each other by connecting blocks and hinge shafts arranged opposite to each other.

[0007] Preferably, the mounting plate has through-holes at its four corners, and the through-holes are countersunk holes.

[0008] Preferably, the distance between the fixing shafts of two adjacent connected grooves is equal to the distance between two adjacent fixing holes.

[0009] Preferably, the fixing hole includes a first straight hole that is deepened downwards from the end face of the mounting plate, and a second straight hole that penetrates the bottom end face of the mounting plate is provided on the bottom wall of the first straight hole. The diameter of the second straight hole is larger than the diameter of the first straight hole.

[0010] Preferably, the fixing shaft of the groove includes a shaft body with a length equal to the depth of the first straight hole, and a retaining tenon is connected to the bottom of the shaft body. The retaining tenon is made of soft rubber and passes through the first straight hole to engage with the second straight hole.

[0011] Preferably, the locking connection mechanism includes two sets of anti-reverse plates symmetrically arranged inside the slot. The anti-reverse plates are all L-shaped components. One end of the anti-reverse plate is fixedly connected to the side wall of the slot, and the other end is provided with an elastic element. The other end of the elastic element is fixedly connected to the side wall of the slot. The anti-reverse plate is elastically engaged with the plug block.

[0012] Preferably, the plug-in block is fixed to the bottom of the wire groove by screws, and the end of the plug-in block away from the connection with the wire groove is provided with a diamond-shaped tenon.

[0013] Preferably, the front and rear side walls of the groove are provided with a plurality of opening grooves that penetrate the corresponding side walls.

[0014] Preferably, the outer top of both the front and rear side walls of the groove is provided with an arc-shaped groove that is concave along the end face of the side wall, and the bottom of the inner wall of both the front and rear side walls of the end cap is provided with an arc-shaped tenon that engages with the arc-shaped groove.

[0015] Preferably, at least one set of movable connecting grooves are symmetrically provided on the left and right sides of the end cover, the hinge shaft is fixedly installed in one of the movable connecting grooves, the connecting block is hingedly installed in the other movable connecting groove, and the end of the connecting block away from the movable connecting groove is provided with a slot for engaging with the hinge shaft of the adjacent end cover.

[0016] Compared with the prior art, the present invention provides a cable tray connector, which has the following advantages: This utility model allows for flexible splicing of wire troughs by setting plug-in blocks and slots at both ends of the wire trough. It can be quickly assembled into a suitable length according to the layout of electrical equipment and the routing of cables, making reasonable use of materials and reducing material waste caused by cutting. The wire trough and the mounting plate are connected by plugging in the fixing shaft and fixing hole, which improves the installation efficiency and installation stability.

[0017] This utility model, by setting up flexibly splicable wire troughs, can be installed to closely fit the internal spatial contour of the distribution cabinet according to the specific location and layout of electrical equipment. It makes full use of limited space resources and avoids space waste caused by mismatch in wire trough length and shape. This makes the internal layout of the distribution cabinet more compact and reasonable, improves the space utilization rate of the distribution cabinet, and provides more space for the installation and layout of other electrical components. It makes the layout of electrical equipment inside the distribution cabinet clearer and more reasonable, and facilitates subsequent inspection and maintenance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the front upper three-dimensional structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a schematic diagram of the rear lower three-dimensional structure of this utility model; Figure 4 This is a partial cross-sectional view of the present invention. Figure 5 This is a three-dimensional exploded view of the connection structure between the wire groove and the end cap of this utility model. Figure 6 This is a rear three-dimensional exploded view of the connection structure between the wire groove and the end cap of this utility model. Figure 7 This is a partial cross-sectional view of the wire groove structure of this utility model.

[0019] In the diagram: 1. Mounting plate; 2. Connecting hole; 3. Fixing hole; 31. First straight hole; 32. Second straight hole; 4. Groove; 41. Arc groove; 42. Open groove; 43. Fixing shaft; 431. Shaft body; 432. Anti-reverse tenon; 44. Slot; 5. End cap; 51. Movable connecting groove; 52. Locking tenon; 6. Hinge shaft; 7. Connecting block; 71. Slot; 8. Insertion block; 9. Locking connection mechanism; 91. Anti-reverse piece; 92. Elastic element. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0022] Example, refer to Figures 1-7 A cable tray connector includes a mounting plate 1 and a cable tray 4. The mounting plate 1 has a plurality of fixing holes 3 arranged in a matrix. The fixing holes 3 on the mounting plate 1 are used to install electrical equipment and the cable tray 4. The bottom of the wire trough 4 is connected to a fixing shaft 43 that is inserted into the fixing hole 3. The fixing shaft 43 is inserted into the fixing hole 3 on the mounting plate 1, thereby fixing the wire trough 4 to the end face of the mounting plate 1. The left and right ends of the wire trough 4 are through, and a plug-in block 8 is installed on the bottom of one end. The other end is provided with a slot 44 that is recessed along the end face. Two adjacent wire troughs 4 are connected to each other by plug-in blocks 8 and slots 44. The slot 44 is provided with a locking connection mechanism 9 that engages with the plug-in block 8. As needed, multiple wire troughs 4 can be flexibly spliced ​​together to form a reasonable length, which is convenient for installation on the end face of the mounting plate 1. The top of the trough 4 is connected to an end cap 5. The left and right ends of the end cap 5 are respectively provided with a hinge shaft 6 and a connecting block 7. Two adjacent end caps 5 are connected to each other by the connecting block 7 and the hinge shaft 6 through the oppositely arranged connecting block 7, which is used to cover the top of the trough 4. According to the length of the trough 4, multiple end caps 5 can be spliced ​​together to make the lengths of the two compatible.

[0023] Furthermore, the four corners of the mounting plate 1 are provided with connecting holes 2 that penetrate the mounting plate 1. The connecting holes 2 are countersunk holes. In use, the mounting plate 1 is fixedly installed inside the distribution cabinet by using countersunk bolts to pass through the connecting holes 2. The end face of the mounting plate 1 is used to fix electrical equipment and to lay and install channels formed by connecting several wire troughs 4 between electrical equipment, thereby constraining and organizing the wiring between various electrical equipment.

[0024] Furthermore, the distance between the fixing shafts 43 between two adjacent connected wire troughs 4 is equal to the distance between two adjacent fixing holes 3, so that the fixing shaft 43 at the bottom of any one of the multiple connected wire troughs 4 can be inserted into the corresponding fixing hole 3, thereby installing the connected wire troughs 4 longitudinally or laterally on the end face of the mounting plate 1, improving the stability of the wire trough 4 installation.

[0025] Furthermore, the fixing hole 3 includes a first straight hole 31 that is deepened downwards from the end face of the mounting plate 1, and a second straight hole 32 that penetrates the bottom end face of the mounting plate 1 is provided on the bottom wall of the first straight hole 31. The diameter of the second straight hole 32 is larger than the diameter of the first straight hole 31.

[0026] Furthermore, the fixing shaft 43 of the wire groove 4 includes a shaft body 431 with a length equal to the depth of the first straight hole 31. A retaining tenon 432, made of soft rubber, is connected to the bottom of the shaft body 431. The retaining tenon 432 passes through the first straight hole 31 and engages with the second straight hole 32. In use, the fixing shaft 43 passes through the fixing hole 3, and the soft rubber retaining tenon 432 at the front end of the fixing shaft 43 is compressed by the first straight hole 31. After passing through the first straight hole 31, the retaining tenon 432 enters the second straight hole 32. In the two straight holes 32, since the diameter of the second straight hole 32 is larger than that of the first straight hole 31, the pressure on the anti-retraction tenon 432 is eliminated and it is restored, so that the anti-retraction tenon 432 and the top wall of the second straight hole 32 form a snap-fit ​​structure, which has a certain pull-out resistance and can prevent the wire groove 4 from accidentally loosening during use. When it is necessary to pull out the wire groove 4, the wire groove 4 needs to be pulled continuously, so that the soft rubber anti-retraction tenon 432 gradually moves away from the second straight hole 32 and moves into the first straight hole 31 to be compressed, thereby pulling out the fixed shaft 43.

[0027] Furthermore, the locking connection mechanism 9 includes two sets of anti-retraction plates 91 symmetrically arranged inside the slot 44. The anti-retraction plates 91 are all L-shaped components. One end of the anti-retraction plate 91 is fixedly connected to the side wall of the slot 44, and the other end is provided with an elastic element 92. The other end of the elastic element 92 is fixedly connected to the side wall of the slot 44. The anti-retraction plate 91 is elastically engaged with the insertion block 8. The two sets of elastic elements 92 are used to push the corresponding anti-retraction plate 91 toward the central axis of the slot 44, thereby abutting against the insertion block 8 inserted into the slot 44 to form a locking connection structure and prevent the two connected wire grooves 4 from loosening.

[0028] Furthermore, the plug-in block 8 is fixed to the bottom of the slot 4 by screws, and the end of the plug-in block 8 away from the slot 4 is provided with a diamond tenon. When the plug-in block 8 is inserted, the front bevel of the diamond tenon contacts the anti-retraction plates 91 at both ends of the inner side wall of the slot 44. Under the action of thrust, the front bevel of the diamond tenon pushes the anti-retraction plate 91 to compress the elastic element 92, causing the anti-retraction plate 91 to move aside, so that the front end of the diamond tenon can pass through the anti-retraction plate 91 and enter the slot 44, so that the rear end of the diamond tenon contacts the anti-retraction plate 91, forming a locking structure under normal conditions. When disassembling the two connected slots 4, the two slots 4 are pulled in the opposite direction, so that the rear end of the diamond tenon moves toward the opening end of the slot 44 and squeezes the elastic element 92 by contacting the anti-retraction plate 91, thereby forcing the anti-retraction plate 91 to move aside, so that the plug-in block 8 can be pulled out, realizing the separation of the two slots 4.

[0029] Furthermore, the front and rear side walls of the cable tray 4 are provided with several opening slots 42 that penetrate the corresponding side walls. In use, the opening slots 42 allow the cables inside the cable tray 4 to pass through and connect with the electrical equipment in the distribution cabinet. After several cable trays 4 are connected, a channel for wiring is formed. Various cables connected to different electrical equipment can pass through the opening slots 42 near the corresponding equipment and connect with the electrical equipment. Thus, the opening slots 42 can be used to assist in the classification of cables, optimize the wiring inside the distribution cabinet, and facilitate subsequent inspection and maintenance.

[0030] Furthermore, the outer top of both the front and rear side walls of the cable tray 4 is provided with an arc-shaped groove 41 that is recessed along the end face of the side wall. The bottom of the inner wall of both the front and rear side walls of the end cover 5 is provided with an arc-shaped tenon 52 that engages with the arc-shaped groove 41. In use, the end cover 5 is fixedly installed on the top of the cable tray 4 by engaging with the arc-shaped groove 41 through the tenon 52, so as to cover the cables arranged inside the cable tray 4 and play a protective and dustproof role.

[0031] Furthermore, at least one set of movable connecting grooves 51 are symmetrically provided on the left and right sides of the end cover 5. The hinge shaft 6 is fixedly installed in one of the movable connecting grooves 51, and the connecting block 7 is hinged in the other movable connecting groove 51, so that the connecting block 7 can rotate relative to the movable connecting groove 51, which is convenient for adjusting the angle. When the connecting block 7 is not in use, it can be folded and flipped inward to the inside of the end cover 5 to avoid interfering with the installation and fixing of electrical equipment in the distribution cabinet. The end of the connecting block 7 away from the movable connecting groove 51 is provided with a slot 71 that engages with the hinge shaft 6 of the adjacent end cover 5. When in use, the slot 71 provided on the connecting block 7 is used to engage with the hinge shaft 6 provided inside the movable connecting groove 51 on the corresponding side of the adjacent end cover 5, thereby connecting multiple end covers 5.

[0032] Working principle: Mounting plate 1 is fixedly installed inside the distribution cabinet. Electrical equipment is fixed on mounting plate 1. The routing path of cables between electrical equipment is planned. According to the planned path, multiple cable trays 4 are spliced ​​together and fixed on mounting plate 1 to constrain and organize the cables connecting electrical equipment. According to the layout of electrical equipment and wiring requirements, cables are passed out from the opening slots 42 inside the cable trays 4 and connected to the electrical equipment in the distribution cabinet. By reasonably arranging the cables, multiple cables connected to different electrical equipment are passed out from the opening slots 42 near the corresponding equipment, realizing the classification and optimized routing of cables, which facilitates troubleshooting during maintenance.

[0033] After the cable is laid, connect the multiple end caps 5 and put the connected end caps 5 on the top of the cable tray 4 to complete the installation of the end caps 5, which are used to protect the cables inside the cable tray 4.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cable tray connector, comprising a mounting plate (1) and a cable tray (4), characterized in that: The mounting plate (1) is provided with a number of fixing holes (3) arranged in a matrix. The bottom of the wire groove (4) is connected to a fixed shaft (43) that is inserted into the fixed hole (3). The left and right ends of the wire groove (4) are through, and a plug-in block (8) is installed on the bottom of one end. The other end is provided with a slot (44) that is recessed along the end face. Two adjacent wire grooves (4) are connected to each other by plug-in blocks (8) and slots (44) arranged opposite to each other. The slot (44) is provided with a locking connection mechanism (9) that engages with the plug-in block (8). The top of the groove (4) is connected to an end cap (5). The left and right ends of the end cap (5) are respectively provided with a hinge shaft (6) and a connecting block (7). Two adjacent end caps (5) are connected to the hinge shaft by the connecting block (7) arranged opposite to each other.

2. A cable tray connector according to claim 1, characterized in that, The mounting plate (1) has connecting holes (2) at its four corners, which are countersunk holes.

3. A cable tray connector according to claim 1, characterized in that, The spacing between the fixed shafts (43) between two adjacent connected grooves (4) is equal to the distance between two adjacent fixed holes (3).

4. A cable tray connector according to claim 1, characterized in that, The fixing hole (3) includes a first straight hole (31) that is deepened downward from the end face of the mounting plate (1), and a second straight hole (32) that penetrates the end face of the mounting plate (1) is provided on the bottom wall of the first straight hole (31). The diameter of the second straight hole (32) is larger than the diameter of the first straight hole (31).

5. A cable tray connector according to claim 4, characterized in that, The fixed shaft (43) of the groove (4) includes a shaft body (431) with a length equal to the depth of the first straight hole (31). The bottom of the shaft body (431) is connected to a retaining tenon (432), which is made of soft rubber. The retaining tenon (432) passes through the first straight hole (31) and engages with the second straight hole (32).

6. A cable tray connector according to claim 1, characterized in that, The locking connection mechanism (9) includes two sets of anti-retraction plates (91) symmetrically arranged inside the slot (44). The anti-retraction plates (91) are all L-shaped components. One end of the anti-retraction plate (91) is fixedly connected to the side wall of the slot (44), and the other end is provided with an elastic element (92). The other end of the elastic element (92) is fixedly connected to the side wall of the slot (44). The anti-retraction plate (91) is elastically engaged with the plug block (8).

7. A cable tray connector according to claim 6, characterized in that, The plug-in block (8) is fixed to the bottom of the groove (4) by screws, and the end of the plug-in block (8) away from the connection with the groove (4) is provided with a diamond tenon.

8. A cable tray connector according to claim 1, characterized in that, The front and rear side walls of the groove (4) are provided with a number of opening grooves (42) that penetrate the corresponding side walls.

9. A cable tray connector according to claim 8, characterized in that, The top of the outer side of the front and rear side walls of the groove (4) is provided with an arc-shaped groove (41) that is recessed along the end face of the side wall. The bottom of the inner wall of the front and rear side walls of the end cap (5) is provided with an arc-shaped tenon (52) that is engaged with the arc-shaped groove (41).

10. A cable tray connector according to claim 9, characterized in that, The end cap (5) is symmetrically provided with at least one set of movable connecting grooves (51) on the left and right sides. The hinge shaft (6) is fixedly installed in one of the movable connecting grooves (51), and the connecting block (7) is hingedly installed in the other movable connecting groove (51). The end of the connecting block (7) away from the movable connecting groove (51) is provided with a slot (71) that engages with the hinge shaft (6) of the adjacent end cap (5).