A close-to-position switch triggering structure of a single door system of a rail vehicle

By combining the trigger plate with the bracket assembly in the single door system of rail vehicles, single-axis motion and multi-trigger switch connection are realized, which solves the problems of complex motion and high failure rate in the existing technology, and improves the reliability and space utilization efficiency of the closed-position switch trigger structure.

CN224536889UActive Publication Date: 2026-07-21NANJING KANGNI MECHANICAL & ELECTRICAL
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING KANGNI MECHANICAL & ELECTRICAL
Filing Date
2025-08-25
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The motion state of the existing track vehicle's closed-position switch triggering structure is complex, resulting in a high potential failure rate, and a single trigger switch failure can cause signal failure.

Method used

The trigger plate is mounted on the bracket assembly and moves along a single axis. It is connected to the control system through multiple trigger switches, which simplifies the movement and ensures that it can still work normally when a single trigger switch fails.

Benefits of technology

It reduces the potential failure rate, improves the reliability of the closed-position switch trigger structure, reduces the space occupied, and adapts to the needs of narrower and more complex vehicle space.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224536889U_ABST
    Figure CN224536889U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of single door system of rail vehicle closes to position switch trigger structure, including hinge arm, trigger switch, bottom plate, trigger plate and hanger assembly;The trigger plate is installed on hanger assembly, and trigger plate is sequentially connected with hinge arm, trigger switch, bottom plate.The utility model simplifies motion state, reduces potential failure rate, improves reliability.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of single-door systems for rail vehicles, and in particular to a closed-position switch triggering structure for a single-door system for rail vehicles. Background Technology

[0002] The door closing mechanism is extremely important for rail transit vehicles, as it directly affects vehicle safety. The door closing switch triggering structure is a crucial component of the door system. When a door closes normally, the door closing switch triggering structure is activated and transmits a signal to the vehicle controller, allowing them to determine if the door has closed correctly. In an emergency, if the door malfunctions and fails to close properly, the door closing switch triggering structure will not activate, and the vehicle controller will not receive a signal indicating normal door closure. This allows them to immediately investigate the door situation or take measures such as isolating the door to ensure the normal operation of the rail transit vehicle and protect passenger safety. Therefore, the door closing switch triggering structure is extremely important for rail transit vehicles.

[0003] The existing closed-position switch triggering structure has the following shortcomings: (1) The trigger plate is installed on the slide cylinder assembly, and the movement is multi-axis, with complex operating conditions and a high potential failure rate; (2) The trigger switch consists of one component. If a single trigger switch fails, the closed-position switch triggering structure will fail, resulting in incorrect transmission of the door signal.

[0004] Therefore, it is necessary to develop a new type of closed-position switch triggering structure to overcome the above problems. Utility Model Content

[0005] Purpose of the utility model: In view of the shortcomings and defects of the existing technology, this utility model provides a closed-position switch triggering structure for a single door system of a rail vehicle, which simplifies the movement state, reduces the potential failure rate, and improves reliability.

[0006] Technical solution: The present invention relates to a closed-position switch triggering structure for a single-door system of a rail vehicle, characterized in that it includes a hinge arm, a trigger switch, a base plate, a trigger plate, and a bracket assembly; the trigger plate is mounted on the bracket assembly, and the trigger plate is sequentially connected to the hinge arm, the trigger switch, and the base plate.

[0007] The base plate is equipped with several trigger switches.

[0008] The mounting bracket assembly is located on the single-door system of the rail vehicle.

[0009] Each of the aforementioned trigger switches is individually connected to the control system.

[0010] The control system is located on the single-door system of the rail vehicle.

[0011] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: The trigger plate of the present invention is installed on the bracket assembly and moves along a single axis, which simplifies the movement state and reduces the potential failure rate; the trigger switch is changed from a single one to multiple ones, so that if a single trigger switch fails, it can still be triggered normally, which improves the reliability of the closed-position switch trigger structure and reduces the potential failure rate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] In the diagram, 1 is the hinge arm; 2 is the trigger switch; 3 is the base plate; 4 is the trigger plate; and 5 is the hanger assembly. Detailed Implementation

[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] This utility model discloses a closed-position switch triggering structure for a single-door system of a rail vehicle, comprising a hinge arm 1, a trigger switch 2, a base plate 3, a trigger plate 4, and a bracket assembly 5. The trigger plate 4 is mounted on the bracket assembly 5 and is sequentially connected to the hinge arm 1, the trigger switch 2, and the base plate 3. The base plate 3 has several trigger switches 2. The bracket assembly 5 is located on the single-door system of the rail vehicle. Each trigger switch 2 is individually connected to a control system. The control system is located on the single-door system of the rail vehicle.

[0016] like Figure 1 As shown, this utility model discloses a closed-position switch triggering structure for a single-door system of a rail vehicle. The trigger plate 4 is fixedly mounted on the bracket assembly 5 and moves along a single axis with the bracket assembly 5. This simplified movement makes the movement state of the trigger plate 4 contacting the hinge arm 1 to trigger the door closed-position signal more reliable, reducing the potential failure rate. Multiple trigger switches 2 are used, ensuring that the closed-position switch triggering structure can still function normally even if a single trigger switch 2 fails, without affecting the normal use of the door and the normal operation of the rail transit vehicle, thus improving reliability and reducing the potential failure rate. In practice, the size of the trigger switch 2 can be reduced, decreasing the overall space occupied by the closed-position switch triggering structure, making it suitable for narrower and more complex vehicle spaces. This utility model overcomes the shortcomings of current closed-position switch triggering structures, simplifies the movement state, reduces the potential failure rate, reduces space occupation, adapts to narrower and more complex vehicle spaces, and improves reliability.

Claims

1. A closed-position switch triggering structure for a single-door system of a rail vehicle, characterized in that: It includes a hinge arm (1), a trigger switch (2), a base plate (3), a trigger plate (4), and a hanger assembly (5); the trigger plate (4) is installed on the hanger assembly (5), and the trigger plate (4) is connected to the hinge arm (1), the trigger switch (2), and the base plate (3) in sequence.

2. The closed-position switch triggering structure of the single-door system for rail vehicles according to claim 1, characterized in that: The base plate (3) is equipped with several trigger switches (2).

3. The closed-position switch triggering structure of the single-door system for rail vehicles according to claim 1, characterized in that: The bracket assembly (5) is located on the single door system of the rail vehicle.

4. The closed-position switch triggering structure of the single-door system for rail vehicles according to claim 2, characterized in that: Several of the aforementioned trigger switches (2) are individually connected to the control system.

5. The closed-position switch triggering structure of the single-door system for rail vehicles according to claim 4, characterized in that: The control system is located on the single-door system of the rail vehicle.