Emergency unlocking device for locking mechanism of sliding plug door of urban rail vehicle

Abstract

The invention relates to an emergency unlocking device for a locking mechanism of a sliding plug door of an urban rail vehicle. The emergency unlocking device for the locking mechanism of the slidingplug door of the urban rail vehicle is characterized in that the unlocking device is located at the end part of a screw rod and drives the screw rod through the rotation of a kinematic pair connectedwith the screw rod, so that the unlocking process of the mechanism is converted into the rotation process of the screw rod; and when the screw rod rotates by a certain angle, the mechanism is changedinto an unlocking state from a locking state, so that the unlocking action of the passive locking door mechanism is realized; and the kinematic pair is a sector gear and a screw rod gear, the lockingmechanism is unlocked through rotation after meshing, and therefore the unlocking purpose of the passive locking door mechanism is realized. The emergency unlocking device for the locking mechanism ofthe sliding plug door of the urban rail vehicle has the advantages of being simple in structure, small in occupied space and high in reliability and universality; and the structure can meet the dooropening requirement of emergency unlocking of an urban rail vehicle door system, and can be used for a sliding plug door driven by a motor-screw rod so as to realize unlocking operation in an emergency state to open the vehicle door.

Description

technical field

[0001] What the present invention designs is a kind of emergency unlocking device suitable for the passive locking urban rail car door of screw transmission, because the passive locking door mechanism has the function of automatically locking the door mechanism when it is closed in place, so in an emergency , it is necessary to properly operate the emergency unlocking device to release the mechanical locking of the door mechanism, which belongs to the technical field of mechanical design. Background technique

[0002] Due to the rapid development of the rail vehicle industry, the demand side has increasingly strict and demanding requirements for the purchased products. Since the emergency unlocking device is a very important part of the door mechanism, the reliability and safety of the operation process The requirements are higher; at the same time, with the rapid development of rail train door mechanisms, inner hidden doors, outer swing doors, and outer hang...

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