Locking device for vehicle door system, vehicle door system for rail vehicle and rail vehicle

Abstract

The invention relates to the technical field of rail vehicles, and discloses a locking device for a vehicle door system, a vehicle door system and a rail vehicle. The locking device includes a mounting plate, a lock hook member connected to the mounting plate, a limit member, a first reset member and a second reset member, and a lock pin arranged on the door carrier or the door leaf to cooperate with the lock hook member, wherein: The lock hook member is connected to the mounting plate through the first fixed shaft and is hinged with the first fixed shaft. The lock hook member has a hook-shaped end that can rotate around the first fixed shaft, and a protrusion protruding along the axial direction of the first fixed shaft. Out of the part; the limit member is connected to the mounting plate through the second fixed shaft and is hinged with the second fixed shaft, the limit member includes a limit part, and the limit part can interact with the protruding part to limit the rotation of the lock hook member; A reset member is used to move the locking hook member from the unlocked position to the locked position when the limit is released; the second reset member is used to move the limit member from the locked position to the unlocked position when unlocked.

Description

technical field [0001] The invention relates to rail vehicle equipment, in particular to a locking device for a vehicle door system, a vehicle door system for a rail vehicle, and a rail vehicle. Background technique [0002] With the rapid development of rail transit and the substantial increase in operating speed, higher design standards have been put forward for the safe use of vehicle supporting facilities and structural stability. [0003] Vehicle door systems for rail vehicles typically include lead screws that actuate door leaf switches. At present, the locking of the vehicle door system of a rail vehicle is usually realized by means of a locking screw. This type of locking is feasible at relatively low operating speeds of rail vehicles. However, with the rapid development of urban traffic, the high-speed operation of intercity trains has become an unstoppable trend today. The high-speed operation of intercity trains (120km / h to 160km / h) will lead to dynamic When th...

AI Technical Summary

Problems solved by technology

However, the setting of multiple sealing rubber strips will generate a relatively high force on the door leaf. When this force is transmitted to the screw nut pair through the door leaf, the load on the screw nut pair will increase accordingly, which may also Leading to the failure of the screw nut pair, reducing the service life of the components, which will also lead to low locking reliability of the vehicle door system

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