Railway wagon coupler quick connection auxiliary device
By designing a front-mounted carriage connecting plate and train coupler connecting components, and utilizing structures such as U-shaped clips, coupler slots, and inner limit clips, a fast and stable connection of railway freight car couplers is achieved. This solves the problems of complex structure and safety hazards in existing devices, and improves the convenience and safety of connection.
Patent Information
- Application Number
- CN202520792379.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-24
AI Technical Summary
The existing railway freight car coupler connection device has a complex structure, requires frequent disassembly and assembly, is time-consuming, and poses safety hazards, thus affecting transportation efficiency.
It adopts a front-mounted carriage connecting plate and train coupler connecting components, including U-shaped brackets, coupler slots, inner limit hooks, rebound damping, limit square bolts and lifting hydraulic piles, etc. Through rotation, slot connection and shock absorption design, it achieves fast and stable coupler connection.
It improves the convenience and safety of coupler connection, reduces maintenance costs, extends equipment lifespan, and ensures efficient and reliable connection performance under various road conditions.
Smart Images

Figure CN223934706U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway engineering technology, and in particular to an auxiliary device for quick connection of railway freight car couplers. Background Technology
[0002] The railway freight car coupler quick connection auxiliary device is a key piece of equipment to improve the efficiency and safety of railway freight car coupler connection. It consists of a variety of parts such as a guide positioning frame, an automatic centering mechanism, and a connecting locking block. Through ingenious mechanical cooperation, it can achieve quick and accurate coupler docking. It includes several innovative designs such as automatic centering and labor-saving operation, which can effectively reduce labor costs and ensure transportation safety.
[0003] A search revealed that the document with publication number "CN218313256U" mentions "a railway freight car coupler disassembly and assembly device, comprising a block, a first threaded rod mounted on the bottom surface of the block, a support plate mounted on the surface of the first threaded rod, and a limit ring mounted on the surface of the first threaded rod near the inner wall of the support plate." During use, the installation of the support plate, the first threaded rod, and the second threaded rod allows the device to be placed on the railway track, enabling adjustment of the fixed angle of each corner of the block. This ensures stable fixation while maintaining a parallel state, facilitating the support of the coupler. The system ensures that the unevenness of the railway surface will not affect the assembly and disassembly of the hook tongue. By setting up an electric hydraulic push rod, the rubber layer supports the bottom of the hook tongue, eliminating the need for manual support by workers. The disassembled hook tongue can be stored in the receiving groove. The fixing rod connects to the pin hole or hook lug hole of the hook tongue, preventing the hook tongue from sliding in the receiving groove. However, the connection points of railway train carriages are mostly complex, requiring multiple connections to achieve a stable effect. However, this method is often cumbersome. In actual operation, frequent assembly and disassembly are not only time-consuming but also prone to safety hazards, affecting the overall transportation efficiency.
[0004] To address these issues, we provide an auxiliary device for quick connection of railway freight car couplers. Utility Model Content
[0005] The purpose of this utility model is to provide an auxiliary device for quick connection of railway freight car couplers, thereby solving the problems mentioned in the background art.
[0006] This application provides a quick-connect auxiliary device for railway freight car couplers, including a front car body connecting plate and a train coupler connecting assembly. The train coupler connecting assembly includes a U-shaped bracket welded to the front side of the front car body connecting plate. The outer wall of the U-shaped bracket is provided with hook grooves, and a driven rotating shaft is connected through the inside of the hook grooves. An inner limit hook is installed on the inner side of each hook groove. A hook return frame is welded to the outer side of the U-shaped bracket. A return damper is provided on the inner side of each hook return frame. A driven rotating plate is installed at the end of each return damper. A hook limiting groove is welded to the rear side of the hook return frame. A limiting square bolt is installed on the inner side of each hook limiting groove. A lifting hydraulic pile is welded to the inner side of the U-shaped bracket. A shock-absorbing damper is installed on the front side of the lifting hydraulic pile. A hook connecting pile is installed on the inner side of each inner limit hook. A rear car body connecting plate is welded to the end of each hook connecting pile.
[0007] Preferably, the inner limit hook and the hook groove are connected by a slot connection, and the inner limit hook and the hook groove are symmetrically arranged in two sets on the left and right sides. The inner limit hook and the hook groove form a rotating structure through a driven rotating shaft.
[0008] Preferably, the rebound damper and the hook rebound frame are welded together, and the rebound damper and the hook rebound frame are arranged symmetrically in two sets on the left and right sides, with the rebound damper and the inner limit hook corresponding one-to-one.
[0009] Preferably, the rebound damper and the driven rotating plate are rotatably connected, and the rebound damper and the inner limit hook form a driven rotating support structure through the driven rotating plate.
[0010] Preferably, the hook limiting groove and the limiting bolt are connected by a groove, and the hook limiting groove and the limiting bolt are symmetrically arranged on the left and right sides, and the hook limiting groove and the limiting bolt fix the inner limiting hook.
[0011] Preferably, the shock-absorbing damper is welded to the lifting hydraulic pile, and the shock-absorbing damper and the hook-connected pile form a shock-absorbing structure.
[0012] Preferably, the hook connecting post and the inner limit hook are connected by a slot, and the hook connecting post and the inner limit hook are tightly fitted together.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. When needed, the inner limiting hook in the hook groove can be rotated by the driven rotating shaft to facilitate the installation of the hook connection pile, making the connection and installation easier. The rebound damper can always push the inner limiting hook inward, especially when the hook connection pile is inserted into the inner limiting hook. The rebound damper will push the inner limiting hook inward to firmly fix the hook connection pile, ensuring the stability and safety of the connection. The driven rotating plate at the end of the rebound damper can rotate with the inner limiting hook, providing continuous and stable support force to ensure that the hook connection pile and the inner limiting hook fit tightly, further improving the overall structural stability.
[0015] 2. The limiting bolt can be inserted into the inner limiting hook of the hook connection pile. The limiting bolt restricts the outward expansion range of the inner limiting hook and prevents dislocation. During movement, the lifting hydraulic pile extends outward, pushing the shock absorber forward, allowing the shock absorber to come closer to the hook connection pile, thus effectively absorbing vibration energy and reducing structural deformation caused by vibration. However, when disassembly is required, the lifting hydraulic pile retracts inward, giving the hook connection pile sufficient disassembly space. The embedded connection between the hook connection pile and the inner limiting hook effectively improves the connection stability during the pulling and traction process of the truck body, reduces wear at the connection point, extends service life, and ensures efficient and reliable connection performance under various road conditions.
[0016] In summary, this application can effectively improve the convenience and safety of railway freight car coupler connection, reduce maintenance costs, extend equipment service life, and ensure efficient and stable transportation. Attached Figure Description
[0017] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.
[0018] Figure 1 This is a schematic diagram of the overall appearance structure proposed in this utility model;
[0019] Figure 2 This is a schematic diagram of the overall disassembled structure proposed in this utility model;
[0020] Figure 3 This is a schematic diagram of the disassembled U-shaped card holder structure proposed in this utility model;
[0021] Figure 4 This is a schematic diagram of the internal structure of the U-shaped card holder proposed in this utility model.
[0022] In the diagram: 1. Front carriage connecting plate; 2. Train coupler connecting assembly; 201. U-shaped bracket; 202. Coupler groove; 203. Driven rotating shaft; 204. Inner limit hook; 205. Hook rebound frame; 206. Rebound damping; 207. Driven rotating plate; 208. Hook limit groove; 209. Limiting square bolt; 210. Lifting hydraulic pile; 211. Shock absorption damping; 212. Hook connecting pile; 213. Rear carriage connecting plate. Detailed Implementation
[0023] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.
[0024] See Figure 1-4 A quick-connection auxiliary device for railway freight car couplers includes a front car body connecting plate 1 and a train coupler connecting assembly 2. The train coupler connecting assembly 2 includes a U-shaped bracket 201 welded to the front side of the front car body connecting plate 1. The outer wall of the U-shaped bracket 201 is provided with hook grooves 202. A driven rotating shaft 203 is connected through the inside of the hook grooves 202. Inner limit hooks 204 are installed on the inner side of each hook groove 202. Hook return frames 205 are welded to the outer side of the U-shaped bracket 201. The inner side of each hook return frame 205 is provided with... A rebound damper 206 is provided, and a driven rotating plate 207 is installed at the end of the rebound damper 206. A hook limiting groove 208 is welded to the rear side of the hook rebound frame 205. A limiting square bolt 209 is installed on the inner side of the hook limiting groove 208. A lifting hydraulic pile 210 is welded to the inner side of the U-shaped frame 201. A shock-absorbing damper 211 is installed on the front side of the lifting hydraulic pile 210. A hook connecting pile 212 is installed on the inner side of the inner limit hook 204. A rear carriage connecting plate 213 is welded to the end of the hook connecting pile 212.
[0025] In this utility model, the inner limit hook 204 and the hook groove 202 are connected by a slot connection. The inner limit hook 204 and the hook groove 202 are arranged symmetrically on the left and right sides. The inner limit hook 204 and the hook groove 202 form a rotating structure through the driven rotating shaft 203. When needed, the inner limit hook 204 in the hook groove 202 can be rotated through the driven rotating shaft 203 to install the hook connection pile 212, thereby improving the connection and installation.
[0026] In this utility model, the rebound damper 206 and the hook rebound frame 205 are welded together. The rebound damper 206 and the hook rebound frame 205 are arranged symmetrically in two sets on the left and right sides. The rebound damper 206 and the inner limit hook 204 correspond one-to-one. When needed, the rebound damper 206 can always push the inner limit hook 204 inward. In particular, when the hook connecting post 212 is inserted into the inner limit hook 204, the rebound damper 206 will push the inner limit hook 204 inward, so that the inner limit hook 204 firmly fixes the hook connecting post 212, ensuring the stability and safety of the connection.
[0027] In this invention, the rebound damper 206 and the driven rotating plate 207 are rotatably connected. The rebound damper 206 and the inner limiting hook 204 form a driven rotating support structure through the driven rotating plate 207. When needed, the driven rotating plate 207 at the end of the rebound damper 206 can rotate with the inner limiting hook 204 to provide continuous and stable support force, ensuring that the hook connecting pile 212 and the inner limiting hook 204 are tightly fitted, further improving the stability of the overall structure.
[0028] In this utility model, the hook limiting groove 208 and the limiting square bolt 209 are connected by a groove. The hook limiting groove 208 and the limiting square bolt 209 are symmetrically arranged on the left and right sides. The hook limiting groove 208 and the limiting square bolt 209 fix the inner limiting hook 204. When needed, the limiting square bolt 209 can be inserted into the inner limiting hook 204 through the hook connecting post 212. The limiting square bolt 209 restricts the outward diffusion range of the inner limiting hook 204 and avoids dislocation.
[0029] In this invention, the shock-absorbing damper 211 and the lifting hydraulic pile 210 are welded together. The shock-absorbing damper 211 and the hook connecting pile 212 form a shock-absorbing structure. During the movement, the lifting hydraulic pile 210 extends outward, pushing the shock-absorbing damper 211 forward, so that the shock-absorbing damper 211 can come closer to the hook connecting pile 212, thereby effectively absorbing vibration energy and reducing structural deformation caused by vibration. However, when disassembly is required, the lifting hydraulic pile 210 retracts inward, giving the hook connecting pile 212 sufficient disassembly space.
[0030] In this utility model, the hook connecting post 212 and the inner limit hook 204 are connected by a slot, and the hook connecting post 212 and the inner limit hook 204 are tightly fitted together. When needed, the hook connecting post 212 and the inner limit hook 204 can effectively improve the connection stability during the pulling and traction process of the carriage through the embedded connection method, reduce the wear of the connection point, extend the service life, and ensure that the connection performance can be maintained efficiently and reliably under various road conditions.
[0031] As can be seen from the above technical solution, in use, the hook connecting pile 212 connected to the rear carriage connecting plate 213 is first moved forward until the hook connecting pile 212 opens the inner limit hook 204 in the U-shaped bracket 201 on the front side of the front carriage connecting plate 1 and is engaged in the inner limit hook 204. During this process, the driven rotating shaft 203 in the hook groove 202 will rotate accordingly. After being engaged, the rebound damping 206 in the hook rebound frame 205 will push the inner limit hook 204 to reset through the driven rotating plate 207 for connection and fixation. After fixing, the limiting bolt 209 is inserted into the hook limiting groove 208. Finally, the hydraulic pile 210 is lifted to push the shock damping 211 forward to limit the hook connecting pile 212. This completes the use process of a railway freight car coupler quick connection auxiliary device.
[0032] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.
[0033] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The above embodiments of this application do not constitute a limitation on the scope of protection of this application.
Claims
1. A quick-connect auxiliary device for railway freight car couplers, comprising a front-mounted car body connecting plate (1) and a train coupler connecting assembly (2), characterized in that: The train coupler connection assembly (2) includes a U-shaped bracket (201) welded to the front side of the front carriage connecting plate (1). The outer wall of the U-shaped bracket (201) is provided with hook grooves (202). A driven rotating shaft (203) is connected through the inside of each hook groove (202). An inner limit hook (204) is installed on the inner side of each hook groove (202). A hook return frame (205) is welded to the outer side of each U-shaped bracket (201). A return damper (206) is provided on the inner side of each hook return frame (205). Each end is equipped with a driven rotating plate (207). The rear side of the hook rebound frame (205) is welded with a hook limiting groove (208). The inner side of the hook limiting groove (208) is equipped with a limiting square bolt (209). The inner side of the U-shaped hook frame (201) is welded with a lifting hydraulic pile (210). The front side of the lifting hydraulic pile (210) is equipped with a shock-absorbing damper (211). The inner side of the inner limit hook (204) is equipped with a hook connecting pile (212). The end of the hook connecting pile (212) is welded with a rear carriage connecting plate (213).
2. The auxiliary device for quick connection of railway freight car couplers according to claim 1, characterized in that, The inner limit hook (204) and the hook groove (202) are connected by a slot. The inner limit hook (204) and the hook groove (202) are arranged in two symmetrical sets on the left and right sides. The inner limit hook (204) and the hook groove (202) form a rotating structure through the driven rotating shaft (203).
3. The auxiliary device for quick connection of railway freight car couplers according to claim 1, characterized in that, The rebound damper (206) and the hook rebound frame (205) are welded together. The rebound damper (206) and the hook rebound frame (205) are arranged in two symmetrical sets on the left and right sides. The rebound damper (206) and the inner limit hook (204) correspond one-to-one.
4. The auxiliary device for quick connection of railway freight car couplers according to claim 1, characterized in that, The rebound damper (206) and the driven rotating plate (207) are rotatably connected, and the rebound damper (206) and the inner limit hook (204) form a driven rotation support structure through the driven rotating plate (207).
5. The auxiliary device for quick connection of railway freight car couplers according to claim 1, characterized in that, The hook limiting groove (208) and the limiting bolt (209) are connected by a groove. The hook limiting groove (208) and the limiting bolt (209) are symmetrically arranged on the left and right sides. The hook limiting groove (208) and the limiting bolt (209) fix the inner limiting hook (204).
6. The auxiliary device for quick connection of railway freight car couplers according to claim 1, characterized in that, The shock-absorbing damper (211) and the lifting hydraulic pile (210) are welded together, and the shock-absorbing damper (211) and the hook connecting pile (212) constitute a shock-absorbing structure.
7. The auxiliary device for quick connection of railway freight car couplers according to claim 1, characterized in that, The hook connecting post (212) and the inner limit hook (204) are connected by a slot, and the hook connecting post (212) and the inner limit hook (204) are tightly fitted together.
Citation Information
Patent Citations
Railway wagon coupler knuckle dismounting and mounting device
CN218313256U