A locomotive door lock assembly

CN224648350UActive Publication Date: 2026-08-18YANGZHOU TONGDA VEHICLE & SHIP EQUIP CO LTD
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Patent Information

Application Number
CN202521622472.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-31
Publication Date
2026-08-18
Estimated Expiration
2035-07-31

AI Technical Summary

Technical Problem

[0003]机车上的隔门在使用时,车厢间隔离门通常是平开的,在闭上时,还需使用者手动拧动把手才能将车厢间的隔离门关闭严实,此种方式当使用者未拧动把手,即使隔离门合上也并未关闭严实,影响门锁的使用效果

Benefits of technology

[0018]1、在将门体关闭时,在锁定组件的配合使用下,能够在锁定舌与锁定轴接触时,可使锁定舌以固定轴的轴心发生偏转,在扭簧的配合使用下能够使开设在锁定舌底部的卡孔套设在锁定轴的外周,方便对门体关上严实,且能够锁定组件的使用效果。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of locomotive, and disclose a kind of locomotive door lock assembly, including door frame and the door body in the inner chamber of door frame, the side opposite of door frame and door body is all set with rectangular groove, the inner chamber opposite of the rectangular groove in another side is fixedly installed with the board of setting together;Locking assembly, locking assembly is set in the inner chamber of one side rectangular groove, can improve the stability after door body is closed, disassembly component, disassembly component is set in the front side of door body and is close to another side, can be used for subsequent part replacement, when closing door body, under the use of locking assembly cooperation, when locking tongue and locking shaft contact, locking tongue can be deflected with the axis of fixed shaft, under the use of torsion spring cooperation, the locking tongue bottom of being set in the clamping hole of locking shaft outer periphery, it is convenient to close door body tightly, and the use effect of locking assembly can be locked.
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Description

Technical Field

[0001] This utility model relates to the field of locomotive technology, specifically to a locomotive door lock assembly. Background Technology

[0002] Locomotive partition door lock assembly is a special lock system used on partition doors (such as the partition door between the driver's cab and passenger compartment, the generator room door, and the partition door between carriages) of railway locomotives (such as diesel locomotives and electric locomotives) or rail vehicles (such as high-speed rail and subways).

[0003] When using the compartment doors on the locomotive, the compartment doors are usually swing-open. When closing, the user needs to manually turn the handle to close the compartment door tightly. In this way, if the user does not turn the handle, the compartment door will not be closed tightly even if it is closed, which affects the use of the door lock.

[0004] Therefore, we propose a locomotive door lock assembly to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a locomotive door lock assembly to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a locomotive partition door lock assembly, including a door frame and a door body located in the inner cavity of the door frame, wherein a rectangular groove is provided on the opposite side of the door frame and the door body, and a mounting plate is fixedly installed on the opposite side of the inner cavity of the rectangular groove on the other side.

[0007] The locking component is located inside a rectangular groove on one side, which can improve the stability of the door after it is closed.

[0008] The disassembly assembly is located on the front side of the door, near the other side, and can be used for subsequent parts replacement.

[0009] The locking assembly includes a locking shaft fixedly installed in the inner cavity of a rectangular groove on the other side and a fixed shaft that moves through the rear side of the inner cavity of the rectangular groove on the other side. A handle A is fixedly installed at the rear end of the fixed shaft, and a locking tongue is fixedly sleeved on the outer periphery of the fixed shaft. The bottom of the locking tongue is fitted to the mounting plate. A rotating shaft is fixedly installed at the front end of the fixed shaft. The front end of the rotating shaft moves through the inner cavity of the door. A shaped groove is opened on the front side of the rotating shaft, and a shaped block is movably inserted into the inner cavity of the shaped groove. A T-shaped rod is fixedly installed on the front side of the shaped block. A torsion spring is movably sleeved on the outer periphery of the T-shaped rod near the rear end. One end of the torsion spring is fixedly connected to the outer periphery of the T-shaped rod, and the other end of the torsion spring is fixedly connected to the shaped block. A handle B is provided on the front side of the T-shaped rod.

[0010] Under specific conditions, when the locking tongue contacts the locking shaft, the locking tongue can deflect around the axis of the fixed shaft. With the help of the torsion spring, the locking hole at the bottom of the locking tongue can be fitted onto the outer circumference of the locking shaft, making it easy to close the door tightly and ensuring the effectiveness of the locking components.

[0011] Preferably, positioning blocks are fixedly installed on the front side of the T-shaped rod near the top and bottom, and positioning grooves are opened on the rear side of the handle B near the top and bottom, and the positioning blocks are respectively movably inserted into the inner cavity of the adjacent positioning grooves.

[0012] Preferably, a groove is provided on the rear side of the handle B, and a magnetic ring A is fixedly installed on the front side of the inner cavity of the groove, and a magnetic ring B is magnetically attracted to the rear side of the magnetic ring A, and the magnetic ring B is fixedly connected to the T-shaped rod.

[0013] Preferably, a locking hole is provided at the bottom of the locking tongue near the other side, and the locking hole is movably sleeved on the outer periphery of the locking shaft, and the other side of the locking tongue near the bottom is arc-shaped.

[0014] Preferably, the disassembly assembly includes a fixed disc fixedly sleeved on the outer periphery of the rotating shaft near the front end and a rectangular block fixedly installed on the front side of the fixed disc near the top. A threaded tube is movably inserted through the top of the rectangular block, a knob is fixedly installed at the top of the threaded tube, a threaded rod is threadedly connected to the inner cavity of the threaded tube, and a movable block is fixedly installed at the bottom end of the threaded rod. An insertion rod is fixedly installed at the bottom of the movable block. Several limiting holes are opened at the top of the handle B, and the bottom end of the insertion rod is movably inserted into the inner cavity of the adjacent limiting hole.

[0015] Preferably, a limiting telescopic rod is fixedly installed on the top of the movable block near both sides, and the top of the limiting telescopic rod is fixedly connected to the rectangular block.

[0016] Preferably, the plurality of the limiting holes are arranged in a circular array with the front side of the handle B as the center.

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

[0018] 1. When the door is closed, with the cooperation of the locking component, the locking tongue can deflect around the axis of the fixed shaft when it contacts the locking shaft. With the cooperation of the torsion spring, the locking hole at the bottom of the locking tongue can be fitted onto the outer circumference of the locking shaft, which facilitates the door to be closed tightly and enhances the effectiveness of the locking component.

[0019] 2. When the torsion spring needs to be replaced after long-term use, with the cooperation of the disassembly components, the movable block can be moved upward under the limitation of two limit telescopic rods by the threaded rod connected to the threaded tube when the threaded tube is rotated. This allows the insertion rod to move away from the inner cavity of the adjacent limit hole, making it easier to remove the irregular block as a whole, which is beneficial for the subsequent replacement of the torsion spring and improves the effect of subsequent door lock use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0021] Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the door frame and door body of this utility model;

[0022] Figure 3 This is an exploded view of the locking shaft, locking tongue, and mounting plate of this utility model;

[0023] Figure 4 This is an exploded view of the locking component of this utility model;

[0024] Figure 5 This is an exploded view of the rotating shaft and the irregularly shaped block of this utility model;

[0025] Figure 6 For the present utility model Figure 4 Enlarged view of point A in the middle.

[0026] In the diagram: 1. Door frame; 2. Door body; 3. Locking assembly; 31. Locking shaft; 32. Fixing shaft; 33. Handle A; 34. Locking tongue; 35. Rotating shaft; 36. Irregular block; 37. T-shaped rod; 371. Positioning block; 372. Positioning groove; 38. Torsion spring; 39. Handle B; 391. Groove; 392. Magnetic ring A; 393. Magnetic ring B; 4. Disassembly assembly; 41. Fixing plate; 42. Rectangular block; 43. Threaded tube; 44. Knob; 45. Threaded rod; 46. Movable block; 461. Limiting telescopic rod; 47. Insert rod; 5. Mounting plate. Detailed Implementation

[0027] 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.

[0028] Example 1

[0029] Please see Figure 1-6A locomotive door lock assembly includes a door frame 1 and a door body 2 located in the inner cavity of the door frame 1. A rectangular groove is provided on the opposite side of the door frame 1 and the door body 2. A mounting plate 5 is fixedly installed on the opposite side of the inner cavity of the rectangular groove on the other side.

[0030] Locking component 3 is located in the inner cavity of a rectangular groove on one side, which can improve the stability of the door 2 after it is closed;

[0031] Disassembly component 4 is located on the front side of door 2, near the other side, and can be used for subsequent parts replacement.

[0032] The locking assembly 3 includes a locking shaft 31 fixedly installed in the inner cavity of the rectangular groove on the other side and a fixed shaft 32 that moves through the rear side of the inner cavity of the rectangular groove on the other side. A handle A33 is fixedly installed at the rear end of the fixed shaft 32, and a locking tongue 34 is fixedly sleeved on the outer periphery of the fixed shaft 32. The bottom of the locking tongue 34 is fitted with the mounting plate 5. A rotating shaft 35 is fixedly installed at the front end of the fixed shaft 32. The front end of the rotating shaft 35 moves through the inner cavity of the door body 2. A shaped groove is opened on the front side of the rotating shaft 35, and a shaped block 36 is movably inserted into the inner cavity of the shaped groove. A T-shaped rod 37 is fixedly installed on the front side of the shaped block 36. A torsion spring 38 is movably sleeved on the outer periphery of the T-shaped rod 37 near the rear end. One end of the torsion spring 38 is fixedly connected to the outer periphery of the T-shaped rod 37, and the other end of the torsion spring 38 is fixedly connected to the shaped block 36. A handle B39 is provided on the front side of the T-shaped rod 37.

[0033] Under specific conditions, when the locking tongue 34 contacts the locking shaft 31, the locking tongue 34 can be deflected around the axis of the fixed shaft 32. With the cooperation of the torsion spring 38, the locking hole at the bottom of the locking tongue 34 can be fitted onto the outer periphery of the locking shaft 31, which facilitates the door 2 to be closed tightly and can lock the component 3.

[0034] Positioning blocks 371 are fixedly installed on the front side of the T-shaped rod 37 near the top and bottom. Positioning grooves 372 are opened on the rear side of the handle B39 near the top and bottom. The positioning blocks 371 are respectively movably inserted into the inner cavity of the adjacent positioning grooves 372.

[0035] Specifically, by setting the positioning block 371 and the positioning groove 372, a guiding function can be provided when the handle B39 is in direct contact with the T-shaped rod 37.

[0036] A groove 391 is provided on the rear side of the handle B39, and a magnetic ring A392 is fixedly installed on the front side of the inner cavity of the groove 391. A magnetic ring B393 is magnetically attracted to the rear side of the magnetic ring A392, and the magnetic ring B393 is fixedly connected to the T-shaped rod 37.

[0037] Specifically, by setting magnetic rings B393 and A392, the handle B39 can be magnetically limited.

[0038] A locking hole is provided at the bottom of the locking tongue 34 near the other side, and the locking hole is movably sleeved on the outer periphery of the locking shaft 31, and the other side of the locking tongue 34 near the bottom is arc-shaped.

[0039] Specifically, since the bottom of the other side of the locking tongue 34 is arc-shaped, it can deflect when the locking tongue 34 comes into contact with the locking shaft 31.

[0040] Example 2

[0041] This embodiment is an improvement upon embodiment 1. For details, please refer to [link / reference]. Figure 3 , Figure 4 and Figure 6 The disassembly assembly 4 includes a fixed plate 41 fixedly sleeved on the outer periphery of the rotating shaft 35 near the front end and a rectangular block 42 fixedly installed on the front side of the fixed plate 41 near the top. A threaded tube 43 is movably inserted through the top of the rectangular block 42. A knob 44 is fixedly installed at the top of the threaded tube 43. A threaded rod 45 is threadedly connected to the inner cavity of the threaded tube 43. A movable block 46 is fixedly installed at the bottom end of the threaded rod 45. An insertion rod 47 is fixedly installed at the bottom of the movable block 46. Several limiting holes are opened on the top of the handle B39. The several limiting holes are arranged in a circular array with the front side of the handle B39 as the center. The bottom end of the insertion rod 47 is movably inserted into the inner cavity of the adjacent limiting hole.

[0042] Specifically, when the torsion spring 38 needs to be replaced after long-term use, with the cooperation of the disassembly component 4, the movable block 46 can be moved upward under the limitation of the two limiting telescopic rods 461 through the threaded rod 45 connected to the inner cavity of the threaded tube 43 when the threaded tube 43 is rotated. This allows the insertion rod 47 to move away from the inner cavity of the adjacent limiting hole, making it easier to remove the irregular block 36 as a whole, which is beneficial for the subsequent replacement of the torsion spring 38 and improves the effect of subsequent door lock use.

[0043] Limiting telescopic rods 461 are fixedly installed on the top of the movable block 46 near both sides, and the top of the limiting telescopic rods 461 are fixedly connected to the rectangular block 42.

[0044] Specifically, by setting a limit telescopic rod 461, the movable block 46 can be limited when it moves, thereby improving the stability of its movement.

[0045] Working Principle: When this utility model is in use, during the use of the locking component 3, when the locking tongue 34 moves to the other side and contacts the locking shaft 31, the locking tongue 34 can deflect around the axis of the fixed shaft 32. With the cooperation of the torsion spring 38, the locking hole at the bottom of the locking tongue 34 can fit onto the outer periphery of the locking shaft 31, facilitating a tight closure of the door 2 and ensuring the effectiveness of the locking component 3. No manual turning of the handle is required. When it is necessary to separate the locking tongue 34 from the locking shaft 31, the handle A33 or handle B39 can be rotated. When the torsion spring 38 needs to be replaced after prolonged use, it can be... The rotatable knob 44 allows the threaded tube 43 fixed at the bottom of the knob 44 to rotate, which in turn allows the threaded rod 45, which is threaded into the inner cavity of the threaded tube 43, to drive the movable block 46 to move upward under the limitation of the two limiting telescopic rods 461. This allows the insertion rod 47 fixed at the bottom of the movable block 46 to move away from the inner cavity of the adjacent limiting hole. Then, the handle B39 can be removed from the T-shaped rod 37, and the T-shaped rod 37 can be pulled forward to remove the irregular block 36 fixed at the rear end of the T-shaped rod 37 from the inner cavity of the irregular groove. This facilitates the subsequent replacement of the T-shaped rod 37, the torsion spring 38, and the irregular block 36 as a whole, improving the performance of the door lock.

[0046] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0047] 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 locomotive door lock assembly, comprising a door frame (1) and a door body (2) located in the inner cavity of the door frame (1), wherein rectangular grooves are provided on opposite sides of the door frame (1) and the door body (2), characterized in that: A mounting plate (5) is fixedly installed on the opposite side of the inner cavity of the rectangular groove on the other side. The locking component (3) is located in the inner cavity of the rectangular groove on one side, which can improve the stability of the door (2) after it is closed; Disassembly component (4) is located on the front side of the door body (2) near the other side, and can be used for subsequent replacement of parts; The locking assembly (3) includes a locking shaft (31) fixedly installed in the inner cavity of the rectangular groove on the other side and a fixing shaft (32) that moves through the rear side of the inner cavity of the rectangular groove on the other side. A handle A (33) is fixedly installed at the rear end of the fixing shaft (32), and a locking tongue (34) is fixedly sleeved on the outer periphery of the fixing shaft (32). The bottom of the locking tongue (34) is fitted with the mounting plate (5). A rotating shaft (35) is fixedly installed at the front end of the fixing shaft (32). The door (2) is open through the inner cavity of the rotating shaft (35). A special groove is opened on the front side of the rotating shaft (35), and a special block (36) is movably inserted into the inner cavity of the special groove. A T-shaped rod (37) is fixedly installed on the front side of the special block (36). A torsion spring (38) is movably sleeved on the outer periphery of the T-shaped rod (37) near the rear end. One end of the torsion spring (38) is fixedly connected to the outer periphery of the T-shaped rod (37), and the other end of the torsion spring (38) is fixedly connected to the special block (36). A handle B (39) is provided on the front side of the T-shaped rod (37). Under specific conditions, when the locking tongue (34) contacts the locking shaft (31), the locking tongue (34) can be deflected around the axis of the fixed shaft (32). With the cooperation of the torsion spring (38), the card hole opened at the bottom of the locking tongue (34) can be fitted onto the outer periphery of the locking shaft (31), which makes it easy to close the door (2) tightly and can lock the effect of the component (3).

2. The locomotive partition door lock assembly according to claim 1, characterized in that: The T-shaped rod (37) has a positioning block (371) fixedly installed on the front side near the top and bottom. The handle B (39) has a positioning groove (372) on the rear side near the top and bottom. The positioning block (371) is movably inserted into the inner cavity of the adjacent positioning groove (372).

3. The locomotive partition door lock assembly according to claim 1, characterized in that: The handle B (39) has a groove (391) on its rear side, and a magnetic ring A (392) is fixedly installed on the front side of the inner cavity of the groove (391), and a magnetic ring B (393) is magnetically attracted to the rear side of the magnetic ring A (392), and the magnetic ring B (393) is fixedly connected to the T-shaped rod (37).

4. The locomotive partition door lock assembly according to claim 1, characterized in that: The bottom of the locking tongue (34) is provided with a locking hole near the other side, and the locking hole is movably sleeved on the outer periphery of the locking shaft (31), and the other side of the locking tongue (34) is arc-shaped near the bottom.

5. A locomotive partition door lock assembly according to claim 1, characterized in that: The disassembly assembly (4) includes a fixed plate (41) fixedly sleeved on the outer periphery of the rotating shaft (35) near the front end and a rectangular block (42) fixedly installed on the front side of the fixed plate (41) near the top. A threaded tube (43) is movably inserted through the top of the rectangular block (42). A knob (44) is fixedly installed at the top of the threaded tube (43). A threaded rod (45) is threadedly connected to the inner cavity of the threaded tube (43). A movable block (46) is fixedly installed at the bottom end of the threaded rod (45). An insert rod (47) is fixedly installed at the bottom of the movable block (46). Several limiting holes are opened at the top of the handle B (39), and the bottom end of the insert rod (47) is movably inserted into the inner cavity of the adjacent limiting hole.

6. A locomotive partition door lock assembly according to claim 5, characterized in that: Limiting telescopic rods (461) are fixedly installed on the top of the movable block (46) near both sides, and the top of the limiting telescopic rods (461) are fixedly connected to the rectangular block (42).

7. A locomotive partition door lock assembly according to claim 5, characterized in that: Several of the limiting holes are arranged in a ring array with the front side of the handle B (39) as the center.