锁定装置和锁具组合
By employing a double-safety locking system on rail vehicles, and utilizing the rotation and extension of the locking hook at different positions in conjunction with the opening, the problems of complex structure and safety risks of existing locking devices are solved. This simplifies and improves the stability and reliability of the locking device, and reduces the risk of accidental opening of the vehicle door.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- IFE VICTALL RAILWAY VEHICLE DOOR SYST QINGDAO CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing rail vehicle locking devices are complex in structure and pose safety risks due to their separate installation. Mechanical failures can easily lead to accidental opening of the doors, threatening passenger safety.
The lock assembly employs a double-locking mechanism, including a main locking device and a second lock. The lock hook rotates between a first position and a second position, and the cooperation between the telescopic part and the opening ensures that the lock hook is reliably fixed in each position. The structure is simple, stable and reliable.
It reduces the probability of accidental opening of the car door, improves safety, avoids safety hazards caused by malfunction of the individual locking device, and simplifies manufacturing and maintenance costs due to the structural design.
Smart Images

Figure CN224514965U_ABST