Rail transit half-height emergency exit lock and half-height emergency exit

Abstract

The invention discloses a rail transit half-height emergency exit lock which comprises a mounting base and a locking mechanism arranged on the mounting base. The locking mechanism comprises an external lock disc arranged on the mounting base through a rotating shaft, an internal lock disc, a lock arm arranged on the mounting base and a drive mechanism. A lock opening matched with a sliding door lock pin is arranged on the external lock disc. The external lock disc is provided with a lock-up position for limiting the sliding door lock pin in the lock opening and a releasing position for releasing the sliding door lock pin. The internal lock disc and the external lock disc are coaxially fixed with each other. The lock arm is provided with a first working position abutting against the internal lock disc to keep the external lock disc in the lock-up position state or in the releasing position state and a second working position for releasing the internal lock disc. The drive mechanism is used for driving the lock arm to be switched between the first working position and the second working position. The invention further discloses a rail transit half-height emergency exit. According to the rail transit half-height emergency exit lock and the rail transit half-height emergency exit, features of all parts are fully utilized to conduct designing, reasonable arrangement of the structure is achieved, the lock is simpler and more reliable to use, processing cost is reduced, and the mounting requirement is lowered.

Description

technical field [0001] The invention belongs to the technical field of rail transit screen door design, and in particular relates to a rail transit half-height safety door lock and a half-height safety door. Background technique [0002] In the half-height door industry, the sliding door is an important passage between the daily operating track and the platform, and it is also an important unit to ensure the safety of passengers. The door lock is an important mechanism in security. [0003] The design of the door lock must include two important functional contents: 1. When the sliding door is driven by the motor through the belt to the closed state, the lock pin of the sliding door activates the door lock to lock. , the sliding door cannot be opened by external force, thus playing a role of safety locking. And when the door lock receives the unlock signal, the electromagnet (electromagnetic push rod) in the door lock is energized and activated, and is unlocked through the ...

AI Technical Summary

Problems solved by technology

However, the locking and unlocking device for the shielded door has a complex structure, and the locking and unlocking process is not smooth when used, and it is prone to jamming, and the control accuracy is not high, and the service life is relatively short

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