Emergency unlocking assembly for subway door

Abstract

The invention relates to an emergency unlocking assembly for a subway door. The emergency unlocking assembly is arranged on a mounting base plate above a door body, wherein a clamping column is arranged on the door body, an electromagnetic unlocking assembly, a pressure reset locking assembly and a rotary locking hook assembly are arranged on the mounting base plate, the rotary locking hook assembly comprises a hook, a rotating shaft and a bearing seat which are clamped with the clamping column, and the electromagnetic unlocking assembly comprises an electromagnet and a first fixing seat; therotating shaft comprises a first rotating shaft rotationally connected with a bearing seat and a second rotating shaft sleeved outside the first rotating shaft and slidingly connected with the first rotating shaft, a supporting rod is arranged on the first rotating shaft, the middle part of the hook is arranged at one end of the second rotating shaft away from the first rotating shaft, the emergency unlocking assembly comprises a pushing rod which pushes the hook to move in a direction perpendicular to the mounting base plate to release the hook from clamping with the clamping column and a driving assembly which drives the pushing rod to move in the direction of the second rotating shaft, the first rotating shaft is extended towards the two sides of one end of the second rotating shaft andprovided with a sliding block, and a sliding slot extending in the length direction of the second rotating shaft and in sliding fit with the sliding block is formed on the inner peripheral wall of the second rotating shaft. According to the invention, the emergency unlocking assembly has the advantage of being convenient to unlock the rotary lock hook assembly when the electromagnet fails.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to an emergency unlocking assembly for subway doors. Background technique [0002] With the rapid development of high-speed trains and urban rail transit, the quality of micro-moving sliding doors has also been continuously improved. Many micro-moving sliding doors are double-door structures, which have the advantages of fast door opening and large opening space, which is convenient for passengers to get on and off. ,get off. [0003] The existing authorized notification number is the Chinese invention patent of CN206844873U, which discloses a central lock mechanism for subway doors, including a mounting base plate fixed on the door body, and the mounting base plate is fixedly equipped with an electromagnetic unlocking component, a pressure reset locking component and a rotary lock hook Assemblies, the rotary lock hook assembly includes a hook, a rotating shaft and a bearing s...

AI Technical Summary

Problems solved by technology

[0004] Due to the fact that the electromagnet will occasionally lose power during the actual practical process, the electromagnetic unlocking component cannot be unlocked, which poses a danger to the safety of passengers.

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