Unlocking mechanism

Abstract

The invention relates to the field of unlocking mechanism locks, and discloses an unlocking mechanism that comprises a spiral-linear shaft sleeve, a guide shaft, a shifting assembly and a driving motor fixed to a base; one end of the spiral-linear shaft sleeve is coaxially arranged on or embedded into an output shaft of the driving motor in a sleeving mode, the other end of the spiral-linear shaftsleeve is coaxially arranged on or embedded into the guide shaft in a sleeving mode, and the guide shaft and a stopper to-be locked are coaxially fixed; the guide shaft, the stopper to-be locked, theoutput shaft of the driving motor and the spiral-linear shaft sleeve are coaxially arranged; the driving motor is used for driving the spiral-linear shaft sleeve to do reciprocating linear or spiralmotions along the axis of the spiral-linear shaft sleeve and meanwhile driving the shifting assembly to separate a clamping block in a locking mechanism from the stopper to-be locked. The unlocking mechanism can effectively prevent the locked locking mechanism from being automatically unlocked in bumpy operation.

Description

technical field [0001] The invention relates to the field of sliding door locks, in particular to an unlocking mechanism. Background technique [0002] At present, bus doors, subway doors or high-speed rail doors usually use sliding doors. The sliding door has good sealing performance and takes up less space, making the overall model beautiful and generous. The quality of the sliding door lock directly affects the quality of the sliding door. Security and sealing, in order to improve the security of sliding door, the researcher in the field mainly puts the object of research on the structure of sliding door lock. [0003] The currently used plug-in door lock structure is usually when the door is closed, a guide wheel on the door lock is introduced into the guide rail through a guide rail on the vehicle frame, and the movement of the door lock is restricted by this guide rail, and the door lock is fixed on the On the door, so that the movement of the door is restricted, so a...

AI Technical Summary

Problems solved by technology

However, this kind of door lock structure has great safety hazards, because when the vehicle is running, the road surface is bumpy and hollow, and the guide wheel on the door lock will roll back and forth in the guide rail, which will lead to poor sealing of the door. When running at high speed, the airflow will enter the car from the gap in the door, which will affect the ride experience of the passengers; when the vibration is large, the guide wheels will even slide out from the original path in the guide rail, which will cause the door to be opened automatically. big security risk

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