A train cab door lock linkage structure

Abstract

The utility model relates to rail transit vehicle door technical field, proposes a train driver's room door lock linkage structure, including the door panel, the one side of door panel is provided with the emergency push rod, the other side of door panel is provided with the door handle subassembly, the door handle subassembly is used for the opening and closing of lock tongue, the one side of door handle subassembly is provided with the rotary lock subassembly, the rotary lock subassembly is used for the locking of door handle subassembly, through the setting of rotary lock subassembly, door handle subassembly etc. structure, emergency push rod is through push rod sliding slot assembly sliding push rod and connects lock tongue, and the side is equipped with the pin hole, the other side door handle subassembly is inserted with the pin hole and is inserted, and the both ends of rotary block are connected with the limit top and the rotating handle, and the lateral rotary lock subassembly drives the sliding board through the gear and rack, and its insertion block and limit top lock stop cooperation, realize the linkage control of three, improve the safety of driver's room door in the fire control, through above-mentioned technical scheme, solved the fire safety problem of lack of in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of rail transit vehicle door technology, specifically to a train driver's cab door lock linkage structure. Background Technology

[0002] The train driver's cab door lock linkage structure refers to the mechanical linkage device applied to the door lock system of the rail transit train driver's cab, which realizes the functions of door lock opening and closing, locking and safety protection through the cooperation of multiple components.

[0003] In the rail transit sector, the door lock structure of the connecting door between the train driver's cab and passenger compartment generally adopts a design combining a door handle and a common rotary lock. While this structure meets basic opening and closing requirements during normal operation, it has significant shortcomings in fire safety scenarios. Traditional door handle components typically achieve latch opening and closing through simple mechanical transmission, while the rotary lock component only provides basic locking functionality. The linkage logic between the two is simplistic and lacks multi-layered safety protection mechanisms. In emergencies such as fires or collisions, the door lock system needs to respond quickly to ensure personnel evacuation. However, existing structures often suffer from lengthy operation paths and delayed responses—for example, the door handle may require multiple rotations to unlock, or the rotary lock cylinder may jam and fail at high temperatures, preventing the door from opening promptly. Utility Model Content

[0004] This utility model proposes a linkage structure for the door lock of a train driver's cab, which solves the problem of insufficient fire safety in related technologies.

[0005] The technical solution of this utility model is as follows: a train driver's cab door lock linkage structure, including a door panel, an emergency push rod is provided on one side of the door panel, a door handle assembly is provided on the other side of the door panel, the door handle assembly is used for opening and closing the latch, and a rotary lock assembly is provided on one side of the door handle assembly, the rotary lock assembly is used for locking the door handle assembly.

[0006] In a preferred embodiment of this utility model, the emergency push rod is composed of a push rod groove, and a sliding push rod is slidably assembled inside the push rod groove. One end of the emergency push rod is provided with a locking tongue, and one side of the emergency push rod is provided with a pin hole.

[0007] As a preferred embodiment of the present invention, the door handle assembly consists of a rotating block and a rotating handle. The rotating block, the rotating handle, and the pin hole are axially arranged along the axis of the rotating block. A limiting top block and a pin are fixedly connected to both ends of the rotating block, respectively. The pin is inserted into the inside of the pin hole. The limiting top block and the rotating handle are fixedly connected to each other.

[0008] In a preferred embodiment of this utility model, the rotary lock assembly comprises a mounting base, a rotary lock cylinder, and a sliding plate. The mounting base is disposed inside the door panel, the sliding plate is slidably mounted on one side of the mounting base, and the rotary lock cylinder is disposed at the bottom of the sliding plate. The mounting base is used to limit the sliding of the sliding plate, and the rotary lock cylinder is used to drive the sliding of the sliding plate.

[0009] As a preferred embodiment of this utility model, a limiting top block is fixedly connected to one side of the mounting base.

[0010] In a preferred embodiment of this utility model, the rotary lock cylinder is fixedly connected inside the door panel, and a rotating shaft is rotatably installed inside the rotary lock cylinder, with a gear fixedly sleeved on the rotating shaft.

[0011] As a preferred embodiment of this utility model, a limiting groove is provided on the inner wall of the sliding plate, the limiting groove is movably sleeved on the outer peripheral surface of the limiting top block, a straight rack is provided at the bottom of the sliding plate, the straight rack meshes with the gear, and a plug-in block is provided on one side of the sliding plate, the plug-in block is used to lock the limiting top block.

[0012] The working principle and beneficial effects of this utility model are as follows: This utility model, through the design of a rotary lock assembly, a door handle assembly, and other structures, allows the emergency push rod to be fitted with a sliding push rod via a push rod groove and connected to the lock tongue, with a pin hole on the side; the other side door handle assembly is connected to the pin hole via a pin, and the two ends of the rotating block are connected to the limiting top block and the rotating handle, while the side rotary lock assembly drives the sliding plate through a gear and rack, and its plug-in block locks with the limiting top block, realizing the linkage control of the three and improving the fire safety of the driver's cab door. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the passenger compartment side structure of the door panel of this utility model; Figure 2 This is a schematic diagram of the driver's cab side structure of the door panel of this utility model; Figure 3 This is a schematic diagram of the overall structure of the door lock linkage structure of this utility model; Figure 4 This is an exploded view of the door lock linkage structure of this utility model; Figure 5 This is a schematic diagram of the limiting transmission structure of the limiting top block of this utility model.

[0015] In the picture: 1. Door panel; 2. Emergency push rod; 21. Push rod groove; 22. Sliding push rod; 23. Locking tongue; 24. Pin hole; 3. Rotary lock assembly; 31. Mounting base; 311. Limiting top block; 32. Rotary lock cylinder; 321. Rotary shaft; 322. Gear; 33. Sliding plate; 331. Spur rack; 332. Limiting groove; 333. Insertion block; 4. Door handle assembly; 41. Rotating block; 411. Limiting top block; 412. Pin; 42. Rotating handle. Detailed Implementation

[0016] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0017] Example: like Figures 1-5 As shown, a train driver's cab door lock linkage structure includes a door panel 1, an emergency push rod 2 is provided on one side of the door panel 1, a door handle assembly 4 is provided on the other side of the door panel 1, the door handle assembly 4 is used for opening and closing the lock tongue 23, and a rotary lock assembly 3 is provided on one side of the door handle assembly 4, the rotary lock assembly 3 is used for locking the door handle assembly 4. The emergency push rod 2 is composed of a push rod slide groove 21. A sliding push rod 22 is slidably assembled inside the push rod slide groove 21. A locking tongue 23 is provided at one end of the emergency push rod 2, and a pin hole 24 is provided on one side of the emergency push rod 2. The door handle assembly 4 consists of a rotating block 41 and a rotating handle 42. The rotating block 41, the rotating handle 42, and the pin hole 24 are axially arranged along the axis of the rotating block 41. The two ends of the rotating block 41 are respectively fixedly connected to a limiting top block 411 and a pin 412. The pin 412 is inserted into the inside of the pin hole 24. The limiting top block 411 and the rotating handle 42 are fixedly connected to each other. The rotary lock assembly 3 consists of a mounting base 31, a rotary lock cylinder 32, and a sliding plate 33. The mounting base 31 is located inside the door panel 1, the sliding plate 33 is slidably mounted on one side of the mounting base 31, and the rotary lock cylinder 32 is located at the bottom of the sliding plate 33. The mounting base 31 is used to limit the sliding of the sliding plate 33, and the rotary lock cylinder 32 is used to drive the sliding of the sliding plate 33. A limiting block 311 is fixedly connected to one side of the mounting base 31; The rotary lock cylinder 32 is fixedly connected inside the door panel 1. A rotating shaft 321 is rotatably installed inside the rotary lock cylinder 32, and a gear 322 is fixedly sleeved on the rotating shaft 321. A limiting groove 332 is provided on the inner wall of the sliding plate 33. The limiting groove 332 is movably sleeved on the outer peripheral surface of the limiting top block 311. A straight rack 331 is provided at the bottom of the sliding plate 33. The straight rack 331 meshes with the gear 322. A plug-in block 333 is provided on one side of the sliding plate 33. The plug-in block 333 is used to lock the limiting top block 411.

[0018] In this embodiment, the door panel 1 serves as the main structure. An emergency push rod 2 is mounted on one side via a push rod groove 21, assembling a sliding push rod 22. The end of the sliding push rod 22 is connected to a lock tongue 23, and a pin hole 24 is provided on the side of the push rod. A door handle assembly 4 is mounted on the other side, consisting of a rotating block 41 and a rotating handle 42 connected axially. The two ends of the rotating block 41 are respectively fixed with a limiting top block 411 and a pin 412. The pin 412 is inserted into the pin hole 24 of the emergency push rod 2 to achieve mechanical linkage. The rotating handle 42 is fixedly connected to the limiting top block 411 to transmit operating force. A rotary lock assembly 3 is located beside the door handle assembly 4, with its mounting base 31 fixed inside the door panel 1. A sliding plate 33 slides with the limiting top block 311 on the side of the mounting base 31 via a limiting groove 332 to achieve limiting and guiding sliding. A rotary lock cylinder 32 is embedded inside the door panel 1, and a gear 322 is fixedly sleeved on the internal rotating shaft. 2. The rotary lock cylinder 32 engages with the rack 331 at the bottom of the sliding plate 33. When the rotary lock cylinder 32 rotates, it drives the sliding plate 33 to slide through the gear 322. The plug block 333 on the side of the sliding plate 33 forms a locking engagement with the limiting top block 411 of the door handle assembly 4 during the sliding process. During operation, the rotating block 41 is rotated by rotating the handle 42, which drives the sliding push rod 22 of the emergency push rod 2 to slide in the push rod groove 21 through the pin 412, realizing the opening and closing action of the lock tongue 23. The rotation of the rotary lock cylinder 32 is transmitted through the meshing of the gear 322 and the rack 331, causing the sliding plate 33 to slide along the limiting top block 311. The locking or releasing of the plug block 333 and the limiting top block 411 controls the locking state of the door handle assembly 4, forming a linkage control between the emergency push rod 2, the door handle assembly 4 and the rotary lock assembly 3, improving the fire safety of the driver's cab door.

[0019] 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, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A train driver's cab door lock linkage structure, comprising a door panel (1), wherein an emergency push rod (2) is provided on one side of the door panel (1), characterized in that, A door handle assembly (4) is provided on the other side of the door panel (1). The door handle assembly (4) is used for opening and closing the latch (23). A rotary lock assembly (3) is provided on one side of the door handle assembly (4). The rotary lock assembly (3) is used for locking the door handle assembly (4).

2. The train driver's cab door lock linkage structure according to claim 1, characterized in that, The emergency push rod (2) is composed of a push rod groove (21), and a sliding push rod (22) is slidably assembled inside the push rod groove (21). A locking tongue (23) is provided at one end of the emergency push rod (2), and a pin hole (24) is provided on one side of the emergency push rod (2).

3. The train driver's cab door lock linkage structure according to claim 2, characterized in that, The door handle assembly (4) consists of a rotating block (41) and a rotating handle (42). The rotating block (41), the rotating handle (42) and the pin hole (24) are axially arranged along the axis of the rotating block (41). The two ends of the rotating block (41) are respectively fixedly connected to a limiting top block (411) and a pin (412). The pin (412) is inserted into the inside of the pin hole (24). The limiting top block (411) and the rotating handle (42) are fixedly connected to each other.

4. The train driver's cab door lock linkage structure according to claim 3, characterized in that, The rotary lock assembly (3) consists of a mounting base (31), a rotary lock cylinder (32), and a sliding plate (33). The mounting base (31) is located inside the door panel (1). The sliding plate (33) is slidably mounted on one side of the mounting base (31). The rotary lock cylinder (32) is located at the bottom of the sliding plate (33). The mounting base (31) is used to limit the sliding of the sliding plate (33), and the rotary lock cylinder (32) is used to drive the sliding plate (33) to slide.

5. The train driver's cab door lock linkage structure according to claim 4, characterized in that, A limiting block (311) is fixedly connected to one side of the mounting base (31).

6. The train driver's cab door lock linkage structure according to claim 5, characterized in that, The rotary lock cylinder (32) is fixedly connected inside the door panel (1). A rotating shaft (321) is rotatably installed inside the rotary lock cylinder (32), and a gear (322) is fixedly sleeved on the rotating shaft (321).

7. The train driver's cab door lock linkage structure according to claim 6, characterized in that, The inner wall of the sliding plate (33) is provided with a limiting groove (332), which is movably sleeved on the outer peripheral surface of the limiting top block (311). The bottom of the sliding plate (33) is provided with a rack (331), which meshes with the gear (322). A plug-in block (333) is provided on one side of the sliding plate (33), which is used to lock the limiting top block (411).

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