Two-way screen door lock

Abstract

The invention provides a bidirectional shield door lock. The bidirectional shield door lock comprises a lock body, a sliding block assembly, a locking reset mechanism, a lock cam mechanism, an electromagnetic unlocking mechanism and a manual unlocking mechanism, the locking reset mechanism keeps applying locking elastic force to the sliding block assembly, the electromagnetic unlocking mechanism and the manual unlocking mechanism can apply unlocking thrust to the sliding block assembly, wherein the lock cam mechanism comprises a lock cam, the lock cam is kept in contact with the sliding blockassembly, the lock cam can rotate freely and reset elastically, two limiting points are oppositely arranged on the lock cam, when the lock cam rotates to make the sliding block assembly make contact with the limiting points, the lock cam is locked and limited and cannot reset elastically, a lock disc is arranged outside the lock body, is fixedly connected with the lock cam, and can drive the lockcam mechanism to rotate bidirectionally and synchronously to make the two limiting points of the lock cam be in contact with the sliding block assembly correspondingly. According to the bidirectionalshield door lock, the clockwise and anticlockwise bidirectional rotating locking function is achieved, the locking state can be formed anyway, and the use flexibility of the shield door lock is improved.

Description

technical field [0001] The invention relates to the technical field of rail transit door locks, in particular to a two-way shielded door lock. Background technique [0002] The movable screen doors of rail transit such as subways and high-speed rails have their own safety requirements during use. After the movable door is closed, the locking reset mechanism can prevent the door from being opened by external force. When the safety screen door is in normal operation, the safety screen door The door lock is automatically controlled by the system, and in the event of automatic failure and emergency, the platform staff or passengers can manually open the safety screen door. Existing screen door locks are usually locked in one direction, and the lock mechanism is a driving structure. When in use, the driving mechanism bears the impact load of the lock mechanism, resulting in a short service life of the driving mechanism, a high failure rate, and poor reliability. Contents of the...

AI Technical Summary

Problems solved by technology

Existing screen door locks are usually one-way locked, and the lock mechanism is also a driving structure. When in use, the driving mechanism bears the impact load of the lock mechanism, resulting in a short service life of the driving mechanism, a high failure rate, and poor reliability.

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