High-strength durable train automatic locking coupler

By introducing a preheating mechanism and a protective mechanism into the automatic locking coupler of the train, the problems of foreign object intrusion and lubricating oil solidification are solved, achieving high strength and durability of the coupler and ensuring the safety and efficiency of train operation.

CN223864860UActive Publication Date: 2026-02-03LANZHOU JIAOTONG UNIV
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Patent Information

Application Number
CN202520506371.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-02-03
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

Existing automatic locking couplers on trains are susceptible to intrusion of foreign objects such as dust, mud, and sand, which affects the reliability of normal locking and unlocking. Furthermore, in extremely cold weather, metal components may become brittle and lubricating oil may solidify, leading to inflexible operation and increasing the risk of train operation safety hazards.

Method used

A high-strength and durable automatic locking coupler for trains was designed, employing a preheating mechanism and a protective mechanism, including components such as heating blocks, sealing gaskets, sealing plates, and auxiliary rollers, to achieve sealing protection and preheating of the coupler body, preventing foreign object intrusion and lubricating oil solidification.

Benefits of technology

It effectively prevents foreign objects from entering, ensures the normal locking and unlocking of the coupler, improves reliability, avoids lubricating oil solidification, and ensures the safety and efficiency of train operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-strength durable train automatic locking coupler, which belongs to the technical field of train automatic locking couplers, and adopts the technical scheme that the high-strength durable train automatic locking coupler comprises two coupler bodies, and two preheating mechanisms, two first fixing frames and two second fixing frames are arranged on the surfaces of the two coupler bodies; the surface of the second fixing frame is fixedly connected with a connecting frame, and the problems that in the existing railway transportation process, a coupler is prone to being invaded by foreign matter such as dust, soil and gravel, the foreign matter can be clamped to key parts such as a coupler knuckle and lock iron of the coupler, normal locking and unlocking of the coupler are hindered, the reliability of the coupler is reduced, and potential safety hazards of train operation are increased are solved; and in extremely cold weather, metal parts of the coupler may become brittle, lubricating oil may become thick and even solidify, so that the coupler is inflexible in action and difficult to lock and unlock, train connection and disassembly time is increased, and even normal operation of the train may be affected.
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Description

TECHNICAL FIELD

[0001] The utility model relates to train automatic locking coupler technology field especially relates to a high strength durable train automatic locking coupler. BACKGROUND

[0002] The high strength durable train automatic locking coupler is a key component for train carriage connection, which has higher strength and better durability to meet the basic automatic locking function and adapt to complex working conditions and frequent use requirements.

[0003] The existing execution mechanism is fixed at the execution station, so when the car box is turned over after uncoupling, the car box is easy to collide with the execution mechanism, causing equipment damage. In addition, due to the dust in the turnover area, it is easy to gather in the lens part of the imaging device, causing the imaging effect to deteriorate, and even causing the uncoupling mechanism to fail to operate.

[0004] The existing patent (publication number: CN219668222U) discloses a train coupler automatic uncoupling device, which comprises a driving seat, a mechanical arm, a mechanical hand, a camera and a controller. The driving seat is arranged in the front-rear direction, and the mechanical arm is installed at the driving end of the driving seat. The mechanical hand and the camera are both installed at the driving end of the mechanical arm. The driving seat, the mechanical arm, the camera and the mechanical hand are all electrically connected with the controller. The driving seat is used to drive the mechanical arm to move in the front-rear direction. In this way, the camera can identify and position the front end of the car box and the car hook lever. When the camera identifies the front end of the car box, the driving seat drives the mechanical arm to move backward to the working position. At this time, the camera continues to identify and position the car hook lever. Then the mechanical arm drives the mechanical hand to clamp the lever and drive the lever to uncouple the hook. Then the mechanical hand releases the lever, and the mechanical arm retracts, and the driving seat drives the mechanical arm to move forward to reset.

[0005] To solve the above problems, the existing patent provides a solution. However, the above-mentioned scheme has certain limitations in use. During railway transportation, the coupler is easy to be invaded by dust, mud, sand and other foreign matters. These foreign matters can be stuck in the key parts of the coupler, such as the coupler tongue and the locking iron, which hinders the normal locking and unlocking of the coupler, reduces the reliability of the coupler, increases the safety hazards of train operation, and in extremely cold weather, the metal parts of the coupler may become brittle, the lubricating oil may become thick or even solidify, causing the coupler to be not flexible in action, making it difficult to lock and unlock, increasing the time of train connection and decomposition, and even possibly affecting the normal operation of the train.

[0006] Therefore, a high strength durable train automatic locking coupler is proposed. UTILITY MODEL CONTENTS

[0007] The purpose of this utility model is to provide a high-strength and durable automatic locking train coupler, which can solve the problem that existing train couplers are easily invaded by foreign objects such as dust, mud, and sand during railway transportation. These foreign objects can get stuck in key parts of the coupler, such as the hook tongue and locking iron, hindering the normal locking and unlocking of the coupler, reducing the reliability of the coupler, increasing the safety hazards of train operation, and in extremely cold weather, the metal parts of the coupler may become brittle, and the lubricating oil may thicken or even solidify, resulting in inflexible operation of the coupler, difficulty in locking and unlocking, increasing the time for train connection and disassembly, and even affecting the normal operation of the train.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a high-strength and durable automatic locking coupler for trains, comprising two coupler bodies, two preheating mechanisms, two first fixing frames and two second fixing frames provided on the surface of the two coupler bodies, a connecting frame fixedly connected to the surface of the second fixing frame, and a protective mechanism provided inside the connecting frame;

[0009] The protective mechanism includes a stabilizing block, a sealing gasket, a sealing groove, four auxiliary rollers, and a sealing plate. The left side of the stabilizing block is fixedly connected to the right side of the connecting frame. The surface of the sealing gasket is fixedly connected to the inside of the sealing groove, which is located inside the connecting frame. The surfaces of the auxiliary rollers are rotatably connected to the inside of the connecting frame. The right side of the sealing plate extends into the inside of the sealing groove and is in close contact with the left side of the sealing gasket.

[0010] Preferably, the preheating mechanism includes two heating blocks disposed on the surface of the coupler body, and a limit bolt is fixedly connected between the two heating blocks on opposite sides.

[0011] Preferably, a rotating column is rotatably connected inside the coupler body, and protective covers are provided at the top and bottom of the coupler body, with the side of the protective cover near the surface of the rotating column in contact with the surface of the rotating column.

[0012] Preferably, the protective cover has four threaded pins connected to its internal threads. The threaded pins extend into the interior of the coupler body from the side closest to the coupler body and are connected to the internal threads of the coupler body.

[0013] Preferably, the right side of the first fixing frame is fixedly connected to the left side of the sealing plate, and two adjusting columns are rotatably connected inside the sealing groove, with the surface of the adjusting columns in contact with the surface of the sealing plate.

[0014] Preferably, a aligning plate is fixedly connected to both the front and rear sides of the first fixing frame, and the interior of the aligning plate is in contact with the surface of the auxiliary roller.

[0015] Preferably, the top and bottom of the coupler body are fixedly connected with mounting blocks, the surfaces of the two mounting blocks are in close contact with the interior of the first fixing frame and the interior of the second fixing frame respectively, and the interior of the first fixing frame and the interior of the second fixing frame are threaded with four bolts, the bolts extending into the interior of the mounting block from the side near the mounting block and threadedly connected to the interior of the mounting block.

[0016] Preferably, mounting brackets are fixedly connected to the opposite sides of the alignment plate and the connecting bracket, and the opposite sides of the two mounting brackets are in close contact.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application enables the first fixed frame to move the aligning plate on the surface of the connecting frame via auxiliary rollers, which facilitates the first fixed frame to move the sealing plate into the sealing groove, so that the right side of the sealing plate is in close contact with the left side of the sealing gasket, and facilitates the connecting frame to provide sealing protection through the sealing gasket and the sealing plate when the two coupler bodies are automatically locked.

[0019] 2. This application installs the protective cover on the top and bottom of the rotating column, which facilitates the protective cover to protect and preheat the coupler body through the heating block, thus preventing the lubricating oil inside the coupler body from solidifying. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the high-strength and durable automatic locking coupler for trains according to this utility model;

[0021] Figure 2 This is a three-dimensional connection diagram of the sealing plate and the connecting frame in this utility model;

[0022] Figure 3 This is a three-dimensional connection diagram of the protective mechanism in this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the surface of the coupler body in this utility model;

[0024] Figure 5 This is a three-dimensional connection diagram of the preheating mechanism in this utility model.

[0025] In the diagram, 1. Coupler body; 2. Mounting block; 3. Sequencing plate; 4. Protective mechanism; 401. Stabilizing block; 402. Sealing gasket; 403. Sealing groove; 404. Auxiliary roller; 405. Sealing plate; 5. Connecting frame; 6. First fixing frame; 7. Bolt; 8. Mounting frame; 9. Preheating mechanism; 901. Heating block; 902. Limiting bolt; 903. Rotating column; 904. Threaded pin; 905. Protective cover; 10. Second fixing frame; 11. Adjusting column. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-5 The present invention provides the following technical solution:

[0028] A high-strength and durable automatic locking train coupler includes two coupler bodies 11. The surfaces of the two coupler bodies 1 are provided with two preheating mechanisms 9, two first fixing frames 6 and two second fixing frames 10. A connecting frame 55 is fixedly connected to the surface of the second fixing frame 10. A protective mechanism 4 is provided inside the connecting frame 5.

[0029] The protective mechanism 4 includes a stabilizing block 401 401, a sealing gasket 402 402, a sealing groove 403 403, four auxiliary rollers 404, and a sealing plate 405. The left side of the stabilizing block 401 is fixedly connected to the right side of the connecting frame 5. The surface of the sealing gasket 402 is fixedly connected to the inside of the sealing groove 403. The sealing groove 403 is opened inside the connecting frame 5. The surface of the auxiliary rollers 404 is rotatably connected to the inside of the connecting frame 5. The right side of the sealing plate 405 extends into the inside of the sealing groove 403 and is in close contact with the left side of the sealing gasket 402.

[0030] In this embodiment: by rotating the surface of the auxiliary roller 404 to the inside of the connecting frame 5, the connecting frame 5 is limited by the auxiliary roller 404 to the first fixed frame 6. This allows the first fixed frame 6 to easily move the sealing plate 405 into the sealing groove 403, so that the right side of the sealing plate 405 is in close contact with the left side of the sealing gasket 402. This facilitates the sealing protection of the connecting frame 5 by the sealing gasket 402 and the sealing plate 405 when the two coupler bodies 1 are automatically locked, thereby reducing the intrusion of mud and sand into the coupler body 1.

[0031] Specifically, such as Figure 4 , Figure 5 As shown, the preheating mechanism 9 includes two heating blocks 901 disposed on the surface of the coupler body 1, and a limit bolt 902 is fixedly connected between the two heating blocks 901 on opposite sides.

[0032] Specifically, such as Figure 4 , Figure 5As shown, a rotating column 903 is rotatably connected inside the coupler body 1. Protective covers 905 are provided at the top and bottom of the coupler body 1. The side of the protective cover 905 near the surface of the rotating column 903 is in contact with the surface of the rotating column 903.

[0033] Specifically, such as Figure 5 As shown, the protective cover 905 has four threaded pins 904 internally threaded. The threaded pins 904 extend into the interior of the coupler body 1 from the side near the coupler body 1 and are threadedly connected to the interior of the coupler body 1.

[0034] In this embodiment: by fixing the surface heating block 901 of the limit bolt 902 to the inside, the two heating blocks 901 can be easily fixed to the top and bottom of the coupler body 1, so that the surface of the threaded pin 904 is connected to the internal thread of the coupler body 1, thereby facilitating the protective cover 905 to protect the inside of the rotating column 903, achieving the effect of protecting the inside of the coupler body 1.

[0035] Specifically, such as Figure 3 As shown, the right side of the first fixing frame 6 is fixedly connected to the left side of the sealing plate 405, and two adjusting columns 11 are rotatably connected inside the sealing groove 403, with the surface of the adjusting column 11 in contact with the surface of the sealing plate 405.

[0036] Specifically, such as Figure 2 , Figure 3 As shown, the front and rear sides of the first fixing frame 6 are fixedly connected to the alignment plate 33, and the interior of the alignment plate 3 is in contact with the surface of the auxiliary roller 404.

[0037] In this embodiment: by rotating the surface of the adjusting column 11 to the inside of the sealing groove 403, the sealing plate 405 can be easily moved to the inside of the sealing groove 403 via the adjusting column 11, so that the side of the aligning plate 3 close to the first fixed frame 6 is fixedly connected to the first fixed frame 6, thereby facilitating the movement of the first fixed frame 6 by the aligning plate 3 via the auxiliary roller 404, thus achieving the effect of facilitating the movement of the first fixed frame 6.

[0038] Specifically, such as Figure 4 As shown, mounting blocks 2 are fixedly connected to the top and bottom of the coupler body 1. The surfaces of the two mounting blocks 2 are in close contact with the interior of the first fixing frame 6 and the interior of the second fixing frame 10, respectively. Four bolts 7 are threadedly connected to the interior of the first fixing frame 6 and the interior of the second fixing frame 10. The bolts 7 extend into the interior of the mounting block 2 from the side near the mounting block 2 and are threadedly connected to the interior of the mounting block 2.

[0039] Specifically, such as Figure 3 As shown, mounting brackets 8 are fixedly connected to opposite sides of the alignment plate 3 and the connecting bracket 5, and the opposite sides of the two mounting brackets 8 are in close contact.

[0040] In this embodiment: by connecting the surface of the bolt 7 with the internal thread of the mounting block 2, the mounting block 2 can be easily fixed to the first fixing frame 6 and the second fixing frame 10 by the bolt 7, so that the opposite sides of the two mounting frames 8 are in close contact, thereby facilitating the sealing of the interior of the connecting frame 5 by the two mounting frames 8, achieving the effect of protecting the interior of the coupler body 1.

[0041] Working principle: When the two coupler bodies are connected, the two heating blocks 901 are moved to the surface of the coupler body 1, fixing the two limit bolts 902. At the same time, the protective cover 905 is installed on the top and bottom of the rotating column 903, so that the protective cover 905 can protect and preheat the coupler body 1 through the heating blocks 901, preventing the lubricating oil inside the coupler body 1 from solidifying. The two mounting blocks 2 drive the first fixing frame 6 and the second fixing frame 10 to move respectively. The first fixing frame 6 drives the aligning plate 3 to move on the surface of the connecting frame 5 through the auxiliary roller 404. This allows the first fixing frame 6 to easily drive the sealing plate 405 to move into the sealing groove 403, so that the right side of the sealing plate 405 is aligned with the left side of the sealing gasket 402. The close contact allows the connecting frame 5 to be sealed and protected by the sealing gasket 402 and sealing plate 405 when the two coupler bodies 1 are automatically locked, thereby reducing the intrusion of mud and gravel into the coupler body 1. This solves the problem that in the current railway transportation process, couplers are easily intruded by foreign objects such as dust, mud, and gravel. These foreign objects can get stuck in key parts of the coupler such as the hook tongue and locking iron, hindering the normal locking and unlocking of the coupler, reducing the reliability of the coupler, increasing the safety hazards of train operation, and in extremely cold weather, the metal parts of the coupler may become brittle, and the lubricating oil may thicken or even solidify, resulting in inflexible coupler operation, difficulty in locking and unlocking, increased train connection and disassembly time, and may even affect the normal operation of the train.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-strength and durable automatic locking coupler for trains, comprising two coupler bodies (1), characterized in that: The surfaces of the two coupler bodies (1) are provided with two preheating mechanisms (9), two first fixing frames (6) and two second fixing frames (10). The surface of the second fixing frame (10) is fixedly connected with a connecting frame (5), and the interior of the connecting frame (5) is provided with a protective mechanism (4). The protective mechanism (4) includes a stabilizing block (401), a sealing gasket (402), a sealing groove (403), four auxiliary rollers (404), and a sealing plate (405). The left side of the stabilizing block (401) is fixedly connected to the right side of the connecting frame (5). The surface of the sealing gasket (402) is fixedly connected to the inside of the sealing groove (403). The sealing groove (403) is opened inside the connecting frame (5). The surface of the auxiliary rollers (404) is rotatably connected to the inside of the connecting frame (5). The right side of the sealing plate (405) extends into the inside of the sealing groove (403) and is in close contact with the left side of the sealing gasket (402).

2. The high-strength and durable automatic locking coupler for trains according to claim 1, characterized in that: The preheating mechanism (9) includes two heating blocks (901) disposed on the surface of the coupler body (1), and a limit bolt (902) is fixedly connected between the two heating blocks (901) on opposite sides.

3. The high-strength and durable automatic locking coupler for trains according to claim 1, characterized in that: The coupler body (1) is rotatably connected to a rotating column (903). The top and bottom of the coupler body (1) are provided with protective covers (905). The side of the protective cover (905) close to the surface of the rotating column (903) is in contact with the surface of the rotating column (903).

4. A high-strength and durable automatic locking coupler for trains according to claim 3, characterized in that: The protective cover (905) has four threaded pins (904) internally threaded. The threaded pins (904) extend into the interior of the coupler body (1) from the side near the coupler body (1) and are threadedly connected to the interior of the coupler body (1).

5. A high-strength and durable automatic locking coupler for trains according to claim 1, characterized in that: The right side of the first fixing frame (6) is fixedly connected to the left side of the sealing plate (405), and two adjusting columns (11) are rotatably connected inside the sealing groove (403), with the surface of the adjusting column (11) in contact with the surface of the sealing plate (405).

6. A high-strength and durable automatic locking coupler for trains according to claim 1, characterized in that: The first fixing frame (6) is fixedly connected to the front and rear sides of the alignment plate (3), and the interior of the alignment plate (3) is in contact with the surface of the auxiliary roller (404).

7. A high-strength and durable automatic locking coupler for trains according to claim 1, characterized in that: The top and bottom of the coupler body (1) are fixedly connected with mounting blocks (2). The surfaces of the two mounting blocks (2) are in close contact with the interior of the first fixing frame (6) and the interior of the second fixing frame (10), respectively. The interior of the first fixing frame (6) and the interior of the second fixing frame (10) are threaded with four bolts (7). The bolts (7) extend into the interior of the mounting block (2) on the side near the mounting block (2) and are threadedly connected to the interior of the mounting block (2).

8. A high-strength and durable automatic locking coupler for trains according to claim 6, characterized in that: The alignment plate (3) and the connecting frame (5) are both fixedly connected to mounting brackets (8) on opposite sides, and the two mounting brackets (8) are in close contact on opposite sides.

Citation Information

Patent Citations

  • Automatic unhooking device for train coupler

    CN219668222U