A modular electrical raceway that is installed without damage
The modularly designed electrical wiring trough uses a knob to rotate the pressing plate to slide the limiting plate, which solves the problem of easy damage during the disassembly and assembly of traditional wiring troughs, and achieves the effect of non-destructive installation and secure cable installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG TIEDAO UNIV
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional electrical wiring trunking is prone to deformation and cracking due to bumps and squeezing during disassembly and assembly, and the limiting structure wears out after repeated disassembly and assembly, affecting its service life and safety.
The modular electrical wiring tray includes components such as an L-shaped protective tray frame, mounting plate, positioning post, plug socket, limit plate, and guide wheel. The limit plate slides by rotating the pressing plate with a knob. Combined with the cooperation of the guide tray and guide wheel, it achieves non-destructive installation and secure cable installation.
It effectively avoids damage to the cable tray during disassembly and assembly, extends its service life, improves the stability of the structure and the reliability of cable fixing, and enhances the safety of the electrical wiring system.
Smart Images

Figure CN224384986U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical wiring trough technology, specifically a modular electrical wiring trough that can be installed without damage. Background Technology
[0002] In electrical wiring systems, wiring troughs serve as the load-bearing and protective structure for cables. The integrity and durability of their structure directly affect the service life and safety of the entire wiring system. In practical applications, traditional electrical wiring troughs often face many problems that lead to their own damage due to limitations in structural design.
[0003] Many cable trays adopt an integral structure. When cables need to be laid, repaired or replaced, the tray is easily bumped and squeezed during disassembly and assembly, which can lead to deformation, cracking and other damage. Some cable trays have unreasonable design of the connection parts with the cables, which means that the limiting structure in the cable tray needs to be disassembled and assembled when the cables are replaced. After repeated disassembly and assembly, the limiting structure will inevitably wear out, affecting the overall service life of the cable tray.
[0004] Therefore, developing an electrical wiring trough that can effectively avoid damage during use and has a modular design to reduce damage caused by disassembly and assembly has become the key to solving the problem of easy damage of current traditional wiring troughs. Utility Model Content
[0005] The purpose of this utility model is to provide a modular electrical wiring trough that can be installed without damage, in order to solve the problems mentioned in the background art, such as the traditional electrical wiring trough being prone to deformation and cracking due to collisions and squeezing during disassembly and assembly due to structural design limitations, as well as the wear and tear of the limiting structure after repeated disassembly and assembly, which affects the service life and safety.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular electrical wiring trough for non-destructive installation, comprising a protective trough frame, the protective trough frame being L-shaped, and mounting plates being fitted onto the lower surfaces of both ends of the protective trough frame. Mounting holes are provided on the lower surfaces of the protective trough frame and mounting plates, and positioning posts are fixedly provided on the lower surfaces of the protective trough frame and mounting plates where the mounting holes are located. A base is fitted onto the protective trough frame and mounting plates via the positioning posts. A plug-in socket is fixedly connected to the upper end of the base. A rotating knob is installed on the lower surface of the base, and the upper end of the knob penetrates the inner surface of the plug-in socket. A pressing disc is fixedly connected to the upper end of the knob. A guide groove is provided on the outer surface of the pressing disc. A sliding limiting plate is installed on the upper outer surface of the plug-in socket, and a rotating guide wheel is installed on the end of the limiting plate facing the inside of the plug-in socket.
[0007] The upper end of the connector is fixedly provided with a limit ring, and the inner surface of the limit ring is equipped with a rotating locking ring. The upper surface of the connector is equipped with a sliding lifting plate, and the upper surfaces of both ends of the lifting plate are fixedly provided with locking plates.
[0008] Preferably, the inner surface of one end of the guide groove is designed vertically, and the inner surface of the other end of the guide groove is designed as a continuous arc, and the guide grooves are distributed at equal angles on the outer surface of the extrusion disc.
[0009] By adopting the above technical solution, the guide groove is designed with one end vertical and the other end continuously arc-shaped. Combined with its equidistant distribution on the outside of the extrusion plate, when the extrusion plate rotates, the guide groove can precisely control the sliding trajectory and distance of the limit plate through cooperation with the guide wheel. The vertical section can keep the limit plate stable when it is not extended, while the arc-shaped section can smoothly push the limit plate to extend and retract, thereby achieving effective limiting and release of the cable and improving the convenience and accuracy of operation.
[0010] Preferably, the limiting plate extends through the outer surface of the plug-in seat, and a spring connects the plug-in seat and the limiting plate.
[0011] The above technical solution uses a design where the limiting plate passes through the plug-in seat and is connected by a spring. The spring can provide a restoring force for the limiting plate. When the extrusion plate rotates and causes the guide wheel to disengage from the arc section of the guide groove, the spring can drive the limiting plate to retract automatically, which facilitates the disassembly or adjustment of the wiring groove. At the same time, it ensures that the limiting plate is in close contact with the relevant components during operation, thereby enhancing the stability of the structure.
[0012] Preferably, the end of the limiting plate located outside the plug-in seat is in contact with the inner bottom surface of the protective groove frame and the mounting plate, and the outer surface of the guide wheel is in contact with the outer surface of the extrusion plate.
[0013] By adopting the above technical solution, the outer end of the limiting plate is in contact with the inner bottom surface of the protective groove and the mounting plate, which can provide good support and limit the insertion seat, preventing it from shifting during use. The guide wheel is in contact with the outer surface of the extrusion plate, which converts the sliding friction between the two into rolling friction, reducing wear, making the rotation of the extrusion plate smoother, and extending the service life of the components.
[0014] Preferably, the limiting ring and the locking ring are concentrically arranged, and both the limiting ring and the locking ring are C-shaped designs with an opening at one end.
[0015] The above technical solution uses a concentric limit ring and a locking ring, both of which are C-shaped with openings, which facilitates the insertion and removal of cables. When the locking ring is rotated so that its opening is misaligned with the opening of the limit ring, it can form a ring around and fix the cable, preventing the cable from moving and improving the reliability of the cable fixation.
[0016] Preferably, a spring is connected between the lifting plate and the plug-in seat, and the outer surface of the upper end of the card plate is in contact with the inner surface of the locking ring opening.
[0017] Using the above technical solution, the spring between the lifting plate and the plug-in seat can provide an upward elastic force to the lifting plate, so that the locking plate is always in close contact with the inner surface of the locking ring opening, thereby effectively restricting the rotation of the locking ring and ensuring the locking effect on the cable. When unlocking is required, simply press the lifting plate down to disengage the locking plate from the locking ring, and then rotate the locking ring to remove the cable. The operation is simple and convenient.
[0018] Compared with the prior art, the beneficial effects of this utility model are: the modular electrical wiring tray with non-destructive installation:
[0019] 1. By opening mounting holes on the lower surface of the protective tray and mounting plate and setting positioning posts, the protective tray and mounting plate can be snapped into the base. This design avoids the drilling and welding operations that may cause damage to the tray during cable installation in traditional cabling trays, greatly reducing the risk of the tray deforming or cracking due to bumps and squeezing during cable installation, and effectively extending the service life of the cabling tray.
[0020] 2. The plug-in base fixedly connected to the upper end, along with the limiting plate, guide wheel, extrusion plate, and other structures that cooperate with the plug-in base, form a modular cable connection and fixing method. When it is necessary to lay, repair, or replace the cable, simply operate the knob to drive the extrusion plate to rotate. By utilizing the cooperation between the guide groove and the guide wheel, the limiting plate can be slid, thus facilitating the operation of the cable. This modular design avoids repeated destructive disassembly and assembly of the cable limiting structure of the wiring trough, reduces the wear of the limiting structure, and ensures the overall stability and reliability of the wiring trough.
[0021] 3. The limiting ring, rotating locking ring, sliding lifting plate, and clamping plate on the plug-in socket further improve the firmness of cable fixing. After the cable is placed in the plug-in socket, the inner surface of its opening is made to fit against the outer surface of the upper end of the clamping plate by rotating the locking ring. The lifting plate then limits the rotation of the locking ring, thereby firmly limiting the cable and effectively preventing the cable from loosening or coming out due to vibration, external pulling, etc. during use, thus improving the safety and stability of the electrical wiring system. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;
[0023] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model;
[0024] Figure 3This is a three-dimensional structural diagram of the present invention in its overall disassembled state;
[0025] Figure 4 This is a three-dimensional structural diagram showing the connection between the mounting plate, positioning column, and base of this utility model;
[0026] Figure 5 This is a three-dimensional structural diagram of the cross-sectional view of the connector, knob, and extrusion plate of this utility model;
[0027] Figure 6 This is a three-dimensional structural diagram of the connection between the plug-in base, the limiting plate, and the guide wheel of this utility model.
[0028] In the diagram: 1. Protective groove frame; 2. Mounting plate; 3. Mounting hole; 4. Positioning post; 5. Base; 6. Plug-in socket; 7. Knob; 8. Extrusion plate; 9. Guide groove; 10. Limiting plate; 11. Guide wheel; 12. Limiting ring; 13. Locking ring; 14. Lifting plate; 15. Clamping plate. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figures 1-6 This utility model provides a technical solution: a modular electrical wiring trough that can be installed without damage.
[0031] Example 1: This example discloses: a protective slot frame 1, which is L-shaped, with mounting plates 2 engaged on the lower surfaces of both ends of the protective slot frame 1. Mounting holes 3 are provided on the lower surfaces of the protective slot frame 1 and the mounting plates 2. Positioning posts 4 are fixedly provided on the lower surfaces of the protective slot frame 1 and the mounting plates 2 where the mounting holes 3 are located. A base 5 is engaged with the protective slot frame 1 and the mounting plates 2 through the positioning posts 4. A plug-in seat 6 is fixedly connected to the upper end of the base 5. A rotating knob 7 is installed on the lower surface of the base 5, and the upper end of the knob 7 penetrates the inner surface of the plug-in seat 6. An extrusion plate 8 is fixedly connected to the upper end of the knob 7. A guide groove 9 is provided on the outer surface of the extrusion plate 8. A sliding limiting plate 10 is installed on the upper outer surface of the plug-in seat 6, and a rotating guide wheel 11 is installed on the end of the limiting plate 10 facing the inside of the plug-in seat 6.
[0032] The inner surface of one end of the guide groove 9 is designed to be vertical, and the inner surface of the other end of the guide groove 9 is designed to be a continuous arc. The guide grooves 9 are distributed at equal angles on the outer surface of the extrusion disc 8.
[0033] The limiting plate 10 penetrates the outer surface of the plug-in seat 6, and a spring connects the plug-in seat 6 and the limiting plate 10.
[0034] The end of the limiting plate 10 located outside the plug socket 6 is in contact with the inner bottom surface of the protective groove frame 1 and the mounting plate 2, and the outer surface of the guide wheel 11 is in contact with the outer surface of the extrusion plate 8.
[0035] The protective tray 1 has an L-shaped design. It is directly engaged with the mounting plate 2 and installed on the base 5 via the positioning posts 4 on the lower surface. The installation process relies on the matching of the positioning posts 4 and the base 5 to achieve positioning, eliminating the need for destructive operations such as drilling and welding that are required in traditional wiring tray installation. At the same time, the mounting holes 3 only serve as auxiliary positioning structures, avoiding direct damage to the tray. This reduces the risk of deformation and cracking caused by bumps and squeezing of the tray from the source of installation, achieving "non-destructive installation".
[0036] When cable positioning is required, insert the connector 6 upward into the mounting hole 3 and position it by engaging the positioning post 4 and the base 5. Then, rotate the knob 7 on the lower surface of the base 5 to drive the extrusion plate 8 inside the connector 6 to rotate synchronously. The guide groove 9 on the outer side of the extrusion plate 8 engages with the guide wheel 11 on the inner side of the limiting plate 10. The arc-shaped guide groove 9 pushes the guide wheel 11 to drive the limiting plate 10 to slide outward, so that the limiting plate 10 can extend out of the connector 6 to lock the relative vertical position of the connector 6 with the protective groove frame 1 and the mounting plate 2.
[0037] Example 2: This example discloses the following based on Example 1: A limiting ring 12 is fixedly provided at the upper end of the plug-in 6, and a rotating locking ring 13 is installed on the inner surface of the limiting ring 12. A sliding lifting plate 14 is installed on the upper surface of the plug-in 6, and a locking plate 15 is fixedly provided on the upper surfaces of both ends of the lifting plate 14.
[0038] The limiting ring 12 and the locking ring 13 are concentrically arranged, and both the limiting ring 12 and the locking ring 13 are C-shaped designs with an opening at one end;
[0039] A spring connects the lifting plate 14 and the plug-in seat 6, and the outer surface of the upper end of the locking plate 15 is in contact with the inner surface of the opening of the locking ring 13.
[0040] The limiting ring 12 and locking ring 13 at the upper end of the plug-in 6 are designed in a concentric C-shape. After the cable is inserted into the plug-in 6 through the opening, the locking ring 13 is rotated so that its opening is misaligned with the opening of the limiting ring 12, forming a ring constraint on the cable. At this time, the lifting plate 14 on the upper surface of the plug-in 6 is pushed upward under the action of the spring, and the outer side of the upper end of the clamping plate 15 at both ends is in contact with the inner side of the opening of the locking ring 13, restricting the reverse rotation of the locking ring 13. This forms a double fixation of "locking ring 13 ringing the cable + clamping plate 15 restricting the rotation of locking ring 13". The spring connection between the lifting plate 14 and the plug-in 6 ensures that the clamping plate 15 is always tightly in contact with the locking ring 13. Even if the cable is vibrated or pulled by external force, the rotation tendency of the locking ring 13 will be blocked by the clamping plate 15 in real time, preventing the cable from loosening or coming out.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A modular electrical wiring trough for non-destructive installation, comprising a protective trough frame (1), wherein the protective trough frame (1) is L-shaped and mounting plates (2) are engaged on the lower surfaces of both ends of the protective trough frame (1), characterized in that: The lower surfaces of the protective slot frame (1) and the mounting plate (2) are provided with mounting holes (3). The lower surfaces of the protective slot frame (1) and the mounting plate (2) where the mounting holes (3) are located are fixedly provided with positioning posts (4). The protective slot frame (1) and the mounting plate (2) are fitted with a base (5) by the positioning posts (4). The upper end of the base (5) is fixedly connected to a plug-in seat (6). The lower surface of the base (5) is provided with a rotating knob (7), and the upper end of the knob (7) penetrates the inner surface of the plug-in seat (6). The upper end of the knob (7) is fixedly connected to an extrusion plate (8). The outer surface of the extrusion plate (8) is provided with a guide groove (9). The upper outer surface of the plug-in seat (6) is provided with a sliding limiting plate (10), and the end of the limiting plate (10) facing the inside of the plug-in seat (6) is provided with a rotating guide wheel (11).
2. The modular electrical wiring trough for non-destructive installation according to claim 1, characterized in that: The upper end of the plug-in base (6) is fixedly provided with a limit ring (12), and the inner surface of the limit ring (12) is provided with a rotating locking ring (13). The upper surface of the plug-in base (6) is provided with a sliding lifting plate (14), and the upper surfaces of both ends of the lifting plate (14) are fixedly provided with a locking plate (15).
3. The modular electrical wiring trough for non-destructive installation according to claim 1, characterized in that: The inner surface of one end of the guide groove (9) is designed vertically, and the inner surface of the other end of the guide groove (9) is designed as a continuous arc. The guide grooves (9) are distributed at equal angles on the outer surface of the extrusion plate (8).
4. The modular electrical wiring trough for non-destructive installation according to claim 1, characterized in that: The limiting plate (10) penetrates the outer surface of the plug-in seat (6), and a spring is connected between the plug-in seat (6) and the limiting plate (10).
5. A modular electrical wiring trough for non-destructive installation according to claim 1, characterized in that: The end of the limiting plate (10) located outside the plug-in seat (6) is in contact with the inner bottom surface of the protective groove frame (1) and the mounting plate (2), and the outer surface of the guide wheel (11) is in contact with the outer surface of the extrusion plate (8).
6. A modular electrical wiring trough for non-destructive installation according to claim 2, characterized in that: The limiting ring (12) and the locking ring (13) are concentrically arranged, and both the limiting ring (12) and the locking ring (13) are C-shaped designs with an opening at one end.
7. A modular electrical wiring trough for non-destructive installation according to claim 2, characterized in that: A spring is connected between the lifting plate (14) and the plug-in seat (6), and the outer surface of the upper end of the card plate (15) is in contact with the inner surface of the opening of the locking ring (13).