Car door isolation lock device

Abstract

The invention discloses a car door isolation lock device. The car door isolation lock device comprises an isolation lock box which is welded to a frame of a door plank, and the inner side direction and the outer side direction of the isolation lock box are consistent with those of the car door plank; an isolation lock cylinder, a long plug pin, a safety lock cylinder, a cross-shaped lock cylinder, a pushing block, a torsional spring and a pushing disc are arranged in the isolation lock box; the isolation lock cylinder is connected with the long plug pin through a connecting rod; any one of the ends of the isolation lock cylinder rotates to control the long plug pin to stretch out or retract, and then car door isolating or isolation relieving is achieved; the additionally-arranged safety lock cylinder and cross-shaped lock cylinder integrate the functions of an isolation lock and a safety lock, isolating and safety lock locking can be achieved both inside and outside a car, a standard quadrangular key can be used for operation inside the car, a specialized cross-shaped key needs to be used outside the car, therefore, the using risk of personnel is reduced, and a good application prospect is achieved.

Description

technical field [0001] The invention relates to a car door isolating lock device, which belongs to the technical field of rail transit. Background technique [0002] At present, there are usually isolation devices on the train doors. When the doors fail or the train is parked and put into storage, the doors can be isolated by operating the isolation device from inside or outside the train, and the isolated doors will be out of service. When operating the isolating device in the existing structure, the four-corner lock cylinder is operated by the four-corner key to rotate, and the isolating bolt is driven to protrude. Realize the isolation of the car door. However, because the standard four-corner key is a general tool and does not have specificity, any person holding the four-corner key can release the isolation from the outside of the car and enter the car, which has certain risks. Contents of the invention [0003] The purpose of the present invention is to overcome th...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the risky problem that any person holding a four-corner key can release the isolation from outside the train and enter the train when the isolation device is operated by the train.

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