Railway vehicle coupler knuckle
By designing an arc-shaped hook and deflection assembly, combined with a servo motor-driven sliding plate and pawl, reliable connection and convenient separation of railway vehicle couplers are achieved, solving the problem of poor locking effect of existing coupler tongues and improving safety and anti-derailment effect.
Patent Information
- Application Number
- CN202520559202.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-27
AI Technical Summary
The locking effect of the coupler tongue of existing railway vehicles is poor, and the anti-derailment effect is not good, which poses a safety hazard.
The design employs an arc-shaped hook and deflection assembly. Through the cooperation of components such as rotating rollers, rotating rods, rotating disks, and ratchet grooves, the arc-shaped hooks are able to engage with each other and prevent deflection. Combined with a servo motor-driven sliding plate and pawl, the arc-shaped hooks can be reliably connected and easily separated.
It improves the stability and safety of vehicle connection, significantly enhances the anti-detachment effect, and is easy to operate.
Smart Images

Figure CN223864861U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of coupler tongues, specifically to a coupler tongue for railway vehicles. Background Technology
[0002] Railway vehicles are mainly composed of car bodies, running gear, and end-connecting devices. An important component of the end-connecting device is the coupler, which is used to connect railway locomotives and cars or cars and cars, transmit traction and impact forces, and maintain a certain distance between cars. The couplers used in railway vehicles now can automatically unlock or engage when the coupler lever is lifted or when two cars collide. Most of these automatic couplers are articulated couplers, whose main feature is that there is a coupler tongue on the coupler head that can rotate around the coupler tongue pin.
[0003] When existing railway vehicle couplers and hooks are in use, they usually rely on the curvature of the bend to work together to achieve the hooking and pulling effect. However, the locking effect is poor, the anti-derailment effect is not good, there are certain safety hazards, and the effectiveness of the device is reduced.
[0004] Therefore, we propose a railway vehicle coupler tongue to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this utility model is to provide a railway vehicle coupler tongue to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a railway vehicle coupler tongue, including a coupler tongue A and an arc-shaped hook A attached to the front right side of the coupler tongue A. An arc-shaped hook B is hooked into the inner cavity of the arc-shaped hook A, and the front side of the arc-shaped hook B is attached to the coupler tongue B. Arc-shaped openings A and B are respectively opened on opposite sides of the arc-shaped hook A and arc-shaped opening B. Deflection components are respectively installed in the inner cavities of arc-shaped openings A and B, and anti-deflection components are respectively installed near the middle of the inner cavities of arc-shaped openings A and B.
[0007] The deflection assembly includes a rotating roller fixedly installed in the inner cavity of the arc-shaped opening A and a rotating rod fixedly installed through the middle of the rotating roller. The rear end of the rotating rod is movably installed on the hook tongue A, and a rotating disk is fixedly installed at the front end of the rotating rod. A ratchet groove is provided on the front side of the rotating disk.
[0008] Preferably, an L-shaped fixing plate is fixedly installed at the middle of the left side of the ratchet groove, and the rear side of the L-shaped fixing plate is fixedly installed on the hook tongue A.
[0009] Preferably, the anti-deviation assembly includes a sliding plate disposed near the center of the inner cavity of the arc-shaped opening A and a rectangular plate fixedly installed on the front side of the sliding plate near the lower left. The rear side of the sliding plate is slidably mounted on the rotating disk. A pawl is disposed near the upper right of the front side of the sliding plate. A fixing rod is fixedly installed at the center of the top of the sliding plate. A threaded sleeve is fixedly installed at the upper end of the fixing rod. A threaded rod is threaded through the middle of the threaded sleeve. Side plates are disposed on the left and right sides of the threaded sleeve. The rear sides of the side plates are fixedly mounted on the rotating disk. The right end of the threaded rod is movably mounted on the adjacent side plate, and the left end of the threaded rod extends movably through to the outside of the adjacent side plate.
[0010] Preferably, a rotating shaft is fixedly installed on the rear side of the pawl near the top, and the rear end of the rotating shaft is movably installed on the rotating disk.
[0011] Preferably, a servo motor is provided on the left side of the left-side side plate, and a groove is provided on the rotating disk near the upper left. The rear side of the servo motor is fixedly installed on the inner wall of the groove cavity, and the output end of the servo motor is fixedly connected to the left end of the threaded rod.
[0012] Preferably, a telescopic spring is movably mounted between the rectangular plate and the pawl.
[0013] Preferably, a guide plate is fixedly installed at the middle of the top of the threaded sleeve, and a guide rod is slidably installed through the guide plate, with the left and right ends of the guide rod respectively fixedly installed on adjacent side plates.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. Through the cooperation of components such as rotating roller, rotating rod, rotating disk, ratchet groove disk and L-shaped fixing plate, the arc hook A and arc hook B can be deflected on hook tongue A and hook tongue B, so as to hook each other. The ratchet groove disk is set to prevent outward deflection, with good anti-disengagement effect, improving the stability of the connection between vehicles and the safety.
[0016] 2. Through the cooperation of components such as sliding plate, rectangular plate, telescopic spring, pawl, fixed rod, threaded sleeve, guide plate, guide rod, threaded rod, side plate and servo motor, the pawl can cooperate with the ratchet groove to prevent deflection, while the threaded rod and threaded sleeve can drive the sliding plate and pawl to move to one side, so as not to stick to the inner wall of the ratchet groove cavity, thus achieving the release function, which is conducive to the outward deflection and separation of arc hook A and arc hook B, making operation convenient. Attached Figure Description
[0017] Figure 1 This is a perspective view of the entire utility model;
[0018] Figure 2 This is a bottom-view perspective view of the present invention;
[0019] Figure 3 This is a partial three-dimensional view of the rotating roller of this utility model;
[0020] Figure 4 This is a partial cross-sectional perspective view of the rotating rod of this utility model;
[0021] Figure 5 This is a partial rear perspective view of the present invention;
[0022] Figure 6 For the present utility model Figure 4 Enlarged view of point A in the middle;
[0023] Figure 7 This is a partial top perspective view of the sliding plate of this utility model;
[0024] Figure 8 This is a partial three-dimensional view of the pawl of this utility model.
[0025] In the diagram: 1. Hook tongue A; 2. Arc hook A; 3. Arc hook B; 4. Hook tongue B; 5. Deflection assembly; 51. Rotating roller; 52. Rotating rod; 53. Rotating disk; 54. Ratchet groove disk; 541. L-shaped fixing plate; 6. Anti-deviation assembly; 61. Sliding plate; 62. Rectangular plate; 621. Telescopic spring; 63. Pawl; 64. Fixing rod; 65. Threaded sleeve; 651. Guide plate; 652. Guide rod; 66. Threaded rod; 67. Side plate; 68. Servo motor. 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] Example 1
[0028] Please see Figure 1-8A railway vehicle coupler tongue includes a coupler tongue A1 and an arc-shaped hook A2 attached to the front right side of the coupler tongue A1. An arc-shaped hook B3 is hooked into the inner cavity of the arc-shaped hook A2, and a coupler tongue B4 is attached to the front side of the arc-shaped hook B3. Arc-shaped openings A and B are respectively opened on opposite sides of the arc-shaped hooks A2 and B. Deflection components 5 are respectively installed in the inner cavities of arc-shaped openings A and B, and anti-deflection components 6 are respectively installed near the middle of the inner cavities of arc-shaped openings A and B. Through the mutual cooperation of the deflection components 5 and the anti-deflection components 6, the arc-shaped hooks A2 and B3 can be hooked together, which can play a role in preventing deflection and can also be quickly released and separated, making the operation convenient.
[0029] In this embodiment, the deflection assembly 5 includes a rotating roller 51 fixedly installed in the inner cavity of the arc-shaped opening A and a rotating rod 52 fixedly installed through the middle of the rotating roller 51. The rear end of the rotating rod 52 is movably installed on the hook tongue A1, and a rotating disk 53 is fixedly installed on the front end of the rotating rod 52. A ratchet groove disk 54 is provided on the front side of the rotating disk 53, which facilitates the deflection of the arc-shaped hook A2 on the hook tongue A1 and plays a role in mutual hooking.
[0030] Specifically, an L-shaped fixing plate 541 is fixedly installed at the middle of the left side of the ratchet groove disk 54, and the rear side of the L-shaped fixing plate 541 is fixedly installed on the hook tongue A1, which serves to support and fix the ratchet groove disk 54.
[0031] In this embodiment: When in use, when hook tongue A1 and hook tongue B4 are engaged, arc hook A2 and arc hook B3 can be arranged to hook each other, thereby connecting vehicles. When arc hook A2 and arc hook B3 deflect, they will drive the rotation rod 52 on hook tongue A1 and hook tongue B4 respectively through the adjacent rotating roller 51, and at the same time drive the rotating disk 53 to rotate, which is conducive to the deflection of arc hook A2 and arc hook B3.
[0032] Example 2
[0033] This embodiment is an improvement upon embodiment 1. For details, please refer to [link / reference]. Figure 3 and Figure 6-8The anti-deviation component 6 includes a sliding plate 61 located near the center of the inner cavity of the arc-shaped opening A and a rectangular plate 62 fixedly installed on the front side of the sliding plate 61 near the lower left. The rear side of the sliding plate 61 is slidably installed on the rotating disk 53. A pawl 63 is provided on the front side of the sliding plate 61 near the upper right. A fixing rod 64 is fixedly installed at the center of the top of the sliding plate 61. A threaded sleeve 65 is fixedly installed at the upper end of the fixing rod 64. A threaded rod 66 is threaded through the middle of the upper part of the threaded sleeve 65. Side plates 67 are provided on the left and right sides of the threaded sleeve 65. The rear sides of the side plates 67 are fixedly installed on the rotating disk 53. The right end of the threaded rod 66 is movably installed on the adjacent side plate 67. The left end of the threaded rod 66 extends movably through to the outside of the adjacent side plate 67, which is conducive to cooperating with the ratchet groove disk 54 to limit the outward deflection of the arc-shaped hooks A2 and B3. At the same time, the position of the pawl 63 can be adjusted to facilitate the release of the work.
[0034] Specifically, a rotating shaft is fixedly installed on the rear side of the pawl 63 near the top, and the rear end of the rotating shaft is movably installed on the rotating disk 53, which facilitates the rotation of the pawl 63.
[0035] Specifically, a servo motor 68 is provided on the left side of the left side plate 67, and a groove is provided on the rotating disk 53 near the upper left. The rear side of the servo motor 68 is fixedly installed on the inner wall of the groove cavity, and the output end of the servo motor 68 is fixedly connected to the left end of the threaded rod 66, which facilitates the power for the rotation of the threaded rod 66 and also serves to support the servo motor 68.
[0036] Specifically, a telescopic spring 621 is movably installed between the rectangular plate 62 and the pawl 63 to facilitate the deflection and restoration of the pawl 63.
[0037] Specifically, a guide plate 651 is fixedly installed at the middle of the top of the threaded sleeve 65, and a guide rod 652 is slidably installed through the guide plate 651. The left and right ends of the guide rod 652 are respectively fixedly installed on the adjacent side plates 67, which serves to guide and limit the movement of the threaded sleeve 65, so that it can move stably left and right.
[0038] In this embodiment: when the rotating disk 53 rotates, it causes the pawl 63 to deflect inward against the ratchet groove disk 54, continuously compressing the extension spring 621. When the rotating disk 53 deflects outward, the pawl 63 engages with the inner wall of the ratchet groove disk 54, thus preventing outward deflection. This allows both the arc hook A2 and arc hook B3 to deflect inward, resulting in better anti-disengagement and improved interlocking effect. Disassembly only requires activating the servo motor 6... When the servo motor 68 is running, it will drive the threaded rod 66 to rotate. When the threaded rod 66 rotates, it will move towards the middle of the rotating disk 53 through the threaded sleeve 65. When the threaded sleeve 65 moves, it will drive the sliding plate 61 to move through the fixed rod 64. When the sliding plate 61 moves, it will drive the pawl 63 to move, so that it will not be in contact with the inner wall of the ratchet groove disk 54. This will release the engagement of the arc hook A2 and arc hook B3, allowing them to deflect outwards, which is conducive to the unfolding of the separation work.
[0039] Working principle: During use, when hook tongues A1 and B4 are engaged, arc hooks A2 and B3 can be interlocked to connect vehicles. When arc hooks A2 and B3 deflect, the adjacent rotating rollers 51 drive the rotating rods 52 to rotate on hook tongues A1 and B4, respectively. This also drives the rotating disk 53 to rotate, facilitating the deflection of arc hooks A2 and B3. As the rotating disk 53 rotates, the pawl 63 deflects inward against the ratchet groove 54, continuously compressing the extension spring 621. When the rotating disk 53 deflects outward, the pawl 63 engages with the inner wall of the ratchet groove 54. This prevents outward deflection, thus allowing both arc hooks A2 and B3 to deflect inward, resulting in better anti-detachment performance. However, they cannot deflect outward, improving the interlocking effect. During disassembly, simply running the servo motor 68 will rotate the threaded rod 66. The rotating threaded rod 66 will move towards the center of the rotating disk 53 via the threaded sleeve 65. The movement of the threaded sleeve 65 will then move the sliding plate 61 via the fixed rod 64. The movement of the sliding plate 61 will then move the pawl 63, preventing it from contacting the inner wall of the ratchet groove disk 54. This releases the engagement of arc hooks A2 and B3, allowing them to deflect outward and facilitating separation.
[0040] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A railway vehicle coupler tongue, comprising a coupler tongue A (1) and an arc-shaped hook A (2) attached to the right side of the front of the coupler tongue A (1), characterized in that: The inner cavity of the arc hook A (2) is hooked with the arc hook B (3), and the front side of the arc hook B (3) is attached to the hook tongue B (4). Arc hook A (2) and arc hook B (3) are respectively provided with arc opening A and arc opening B on opposite sides. The inner cavities of arc opening A and arc opening B are respectively equipped with deflection components (5), and the inner cavities of arc opening A and arc opening B are respectively equipped with anti-deflection components (6) near the middle. The deflection assembly (5) includes a rotating roller (51) fixedly installed in the inner cavity of the arc-shaped opening A and a rotating rod (52) fixedly installed through the middle of the rotating roller (51). The rear end of the rotating rod (52) is movably installed on the hook tongue A (1), and a rotating disk (53) is fixedly installed at the front end of the rotating rod (52). A ratchet groove disk (54) is provided on the front side of the rotating disk (53).
2. The railway vehicle coupler tongue according to claim 1, characterized in that: An L-shaped fixing plate (541) is fixedly installed at the middle of the left side of the ratchet groove disc (54), and the rear side of the L-shaped fixing plate (541) is fixedly installed on the hook tongue A (1).
3. The railway vehicle coupler tongue according to claim 1, characterized in that: The anti-deviation assembly (6) includes a sliding plate (61) located near the middle of the inner cavity of the arc-shaped opening A and a rectangular plate (62) fixedly installed on the front side of the sliding plate (61) near the lower left. The rear side of the sliding plate (61) is slidably installed on the rotating disk (53). A pawl (63) is provided on the front side of the sliding plate (61) near the upper right. A fixing rod (64) is fixedly installed at the middle of the top of the sliding plate (61). A threaded sleeve (65) is fixedly installed at the upper end of the fixing rod (64). A threaded rod (66) is threaded through the middle of the threaded sleeve (65). Side plates (67) are provided on the left and right sides of the threaded sleeve (65). The rear side of the side plates (67) is fixedly installed on the rotating disk (53). The right end of the threaded rod (66) is movably installed on the adjacent side plate (67). The left end of the threaded rod (66) extends movably through to the outside of the adjacent side plate (67).
4. The railway vehicle coupler tongue according to claim 3, characterized in that: A rotating shaft is fixedly installed on the rear side of the pawl (63) near the top, and the rear end of the rotating shaft is movably installed on the rotating disk (53).
5. A railway vehicle coupler tongue according to claim 3, characterized in that: A servo motor (68) is provided on the left side of the side plate (67) on the left side, and a groove is provided on the rotating disk (53) near the upper left. The rear side of the servo motor (68) is fixedly installed on the inner wall of the groove cavity, and the output end of the servo motor (68) is fixedly connected to the left end of the threaded rod (66).
6. A railway vehicle coupler tongue according to claim 3, characterized in that: A telescopic spring (621) is movably installed between the rectangular plate (62) and the pawl (63).
7. A railway vehicle coupler tongue according to claim 3, characterized in that: A guide plate (651) is fixedly installed at the middle of the top of the threaded sleeve (65), and a guide rod (652) is slidably installed through the guide plate (651). The left and right ends of the guide rod (652) are respectively fixedly installed on the adjacent side plates (67).