Crimp integrated rail bond plug connection device
The plug connection device with integrated press-fit design solves the problems of plug damage and inconvenient installation caused by welding, improves the corrosion resistance and construction convenience of the plug, and extends its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CRSC ENG GRP CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-07-14
Smart Images

Figure CN224502372U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of railway signaling technology, specifically relating to a crimp-integrated rail lead wire plug connection device. Background Technology
[0002] The existing railway rail lead wire connection between the plug and the line body is achieved by welding (usually CO2 gas shielded welding). The high temperature generated by welding will damage the galvanized anti-corrosion layer on the surface of the plug, reducing the corrosion resistance of the product. An oxide layer will be generated at the weld, increasing the conductor resistance and affecting the electrical performance of the product. During installation, the hammer head is in direct contact with the plug, which will cause varying degrees of damage to the surface of the plug. At the same time, uneven force will cause the plug head to bend or break, affecting its use. The bending radius of the line body at the rail is too small, which is not convenient for installation. Therefore, we propose a crimp-integrated rail lead wire plug connection device. Utility Model Content
[0003] The purpose of this invention is to provide a press-fit integrated rail lead wire plug connection device to solve the existing problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a press-fit integrated rail lead wire plug connection device, comprising a plug head, a stop block, and a disassembly sleeve. The bottom of the plug head is fixedly provided with an integral stop block, which is a flat, round disc structure. The bottom of the stop block is provided with an integral connecting part. The outer side of the disassembly sleeve is provided with a sleeve groove, one end of which passes through the end of the disassembly sleeve and communicates with the outside. During installation, the disassembly sleeve is fitted around the outer periphery of the connecting part through the sleeve groove, and the open end of the disassembly sleeve contacts one side of the stop block.
[0005] Preferably, an extension handle is provided on the outer side of the disassembly sleeve, and the extension handle is fixedly installed on the outer side away from the opening end of the disassembly sleeve by welding.
[0006] Preferably, the bottom end of the connecting part is provided with a terminal, and the terminal and the connecting part are an integral structure.
[0007] Preferably, a wiring hole is provided at the bottom of the terminal, and a lead wire is fixedly connected to the terminal through the wiring hole.
[0008] Preferably, the end of the sleeve near the extension handle is in a blocked state.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] 1. By redesigning the plug structure, the traditional installation method is improved to a wire crimping method. Furthermore, the removal and installation sleeve prevents direct contact between the hammer and the plug, increases the stress area, reduces plug damage, and changes the angle between the plug and the wire from perpendicular to horizontal, increasing the wire bending radius, facilitating construction, effectively improving product corrosion resistance, extending product lifespan, and reducing replacement frequency. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0012] Figure 2 This is a multi-angle structural schematic diagram of the present invention;
[0013] Figure 3 This is a schematic diagram of the disassembly and assembly structure of this utility model.
[0014] In the diagram: 1. Plug head; 2. Stop block; 3. Connector; 4. Terminal; 5. Lead wire; 7. Assembly / disassembly sleeve; 8. Slot; 10. Extension handle. Detailed Implementation
[0015] 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.
[0016] Please see Figure 1-3 This utility model provides a technical solution for a press-fit integrated rail lead wire plug connection device: including a plug head 1, a stop block 2, and a disassembly sleeve 7. The bottom of the plug head 1 is fixedly provided with an integral stop block 2. The stop block 2 is a flat circular disc structure. The bottom of the stop block 2 is provided with an integral connecting part 3. A sleeve groove 8 is opened on one side of the outer side of the disassembly sleeve 7. One end of the sleeve groove 8 passes through the end of the disassembly sleeve 7 and communicates with the outside. When installing, the disassembly sleeve 7 is fitted around the outer periphery of the connecting part 3 through the sleeve groove 8, and the open end of the disassembly sleeve 7 contacts one side of the stop block 2.
[0017] Specifically, an extension handle 10 is provided on the outer side of the disassembly sleeve 7, and the extension handle 10 is fixedly installed on the outer side away from the opening end of the disassembly sleeve 7 by welding.
[0018] Specifically, the bottom end of the connecting part 3 is provided with a terminal 4, and the terminal 4 and the connecting part 3 are an integral structure.
[0019] Specifically, a wiring hole is provided at the bottom of the terminal 4, and a lead wire 5 is fixedly connected to the terminal 4 through the wiring hole.
[0020] Specifically, the end of the sleeve 8 near the extension 10 is in a blocked state.
[0021] In this embodiment, during installation, the end of the lead wire 5 is inserted into the wiring hole at the bottom of the terminal 4, and the connection between the lead wire 5 and the terminal 4 is sealed with a plastic insulating sleeve. Then, the disassembly sleeve 7 is placed on the outside of the connecting part 3, so that the ends of the terminal 4 and the lead wire 5 are both placed inside the sleeve groove 8, and the open end of the disassembly sleeve 7 is in close contact with one side of the stop block 2. Then, by holding the extension handle 10, the stability of the disassembly sleeve 7 is ensured, and the plug head 1 is aligned with the mounting hole on the rail. The end of the disassembly sleeve 7 is struck with a hammer, and the force generated by the strike is transmitted to the stop block 2 through the disassembly sleeve 7. 2. Push the plug head 1 into the mounting hole on the rail until the plug head 1 is completely inside the mounting hole, thus completing the installation and fixing of the plug head 1. Finally, remove the disassembly sleeve 7. When disassembly is required, put the disassembly sleeve 7 on the outside of the connecting part 3 to improve the stability of the connection between the disassembly sleeve 7 and the connecting part 3. Then, use a hammer to strike the extension handle 10 on the disassembly sleeve 7 outward. The striking position should be at the end of the extension handle 10 close to the disassembly sleeve 7 to improve the effect of the striking force. Use the connecting part 3 to drive the stop block 2 and the plug head 1 to move outward until the plug head 1 is completely removed from the rail, thus completing the disassembly work.
[0022] 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 press-fit integrated rail lead wire plug connection device, comprising a plug head (1), a stop block (2), and a disassembly sleeve (7), characterized in that: The bottom of the plug head (1) is fixedly provided with an integral stop block (2). The stop block (2) is a flat disc structure. The bottom of the stop block (2) is provided with an integral connecting part (3). The outer side of the disassembly sleeve (7) is provided with a sleeve groove (8). One end of the sleeve groove (8) passes through the end of the disassembly sleeve (7) and communicates with the outside. When the disassembly sleeve (7) is installed, it is fitted on the outer periphery of the connecting part (3) through the sleeve groove (8) and the opening end of the disassembly sleeve (7) contacts one side of the stop block (2).
2. The integrated crimping rail lead wire plug connection device according to claim 1, characterized in that: An extension handle (10) is provided on the outer side of the disassembly sleeve (7), and the extension handle (10) is fixedly installed on the outer side away from the opening end of the disassembly sleeve (7) by welding.
3. The integrated crimping rail guide plug connection device according to claim 1, characterized in that: The bottom end of the connecting part (3) is provided with a terminal (4), and the terminal (4) and the connecting part (3) are an integral structure.
4. The integrated crimping rail lead wire plug connection device according to claim 3, characterized in that: The bottom of the terminal (4) is provided with a wiring hole, and the terminal (4) is fixedly connected to the lead wire (5) through the wiring hole.
5. The integrated crimping rail lead wire plug connection device according to claim 1, characterized in that: The end of the sleeve (8) near the extension handle (10) is in a blocked state.