An electric locking device for subway screen doors

Abstract

The invention discloses an electric locking device for a subway screen door, which is installed on the door machine guide rail of the subway screen door and includes an electromagnet, a front bracket of a lock body, a rear bracket of the lock body, a pawl dial, and a pawl , pawl rotating shaft, lock hook, lock hook rotating shaft, left lock pin, right lock pin, manual unlocking mechanism, lock in place detection switch, manual unlock detection switch and switch bracket, when the door leaf is automatically unlocked, the electromagnet is powered to do work Linear motion drives the pawl to rotate, the pawl on the pawl shaft rotates synchronously, the pawl disengages the lock hook, and the lock hook rotates under the action of the third torsion spring restoring force, so that the left lock pin and the right lock pin are separated from the lock. The left lock groove and right lock groove of the hook realize the automatic opening of the door leaf; when the door leaf is manually unlocked, the manual lock triggers the manual unlocking mechanism, triggers the manual unlock detection switch, and realizes the manual opening of the door leaf. The invention is convenient for maintenance, high in stability and has good application prospect.

Description

technical field [0001] The invention relates to an electric locking device for subway screen doors, belonging to the technical field of rail transit screen doors. Background technique [0002] With the rapid development of urban traffic, the demand for subway screen doors is also increasing. At present, the lock body of the electric locking device of the existing subway screen door is installed on the door machine beam, and the lock pin is installed on the door carrying frame of the door leaf, that is, the lock body and the lock pin are installed on different component positions. It is a bit difficult to debug and maintenance is inconvenient. Moreover, the lock pin adjustment and anti-loosening functions of the existing electric locking device have complex structures and high manufacturing costs. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to overcome the problems of the existing electric locking device of subway screen door, the lock body a...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems of the existing electric locking device for subway shield doors, the lock body and the lock pin are installed in different parts, the installation and debugging are somewhat difficult, and the lock pin adjustment and the anti-loosening function structure are complicated.

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