Integrated car door lock and asynchronous door knife device of elevator

Abstract

The invention discloses an integrated car door lock and asynchronous door knife device of an elevator. The device comprises a door knife bottom plate relatively fixed with a car door and a track frame relatively fixed with a car. A movable blade and an unlocking blade which are matched with each other and used for driving a landing door ball are mounted on the door knife bottom plate in a swinging manner. A knife lifting ball matched with the track frame is coupled with the movable blade. A lock hook is hinged on the knife door bottom plate, a lock bolt fastened with the lock hook is relatively fixed on the car, and a poke rod used for poking the lock hook so as to change a matching state of the lock hook with the lock bolt is arranged on the unlocking blade. An unlocking plate is also coupled on the knife door bottom plate, linkage parts matching with one other to drive the unlocking plate to rotate are arranged between the movable blade and the unlocking plate, and a poke wheel which rotates with the unlocking plate so as to poke the lock hook to unlock is arranged on the unlocking plate. An elevator car door lock and an asynchronous door knife are arranged on a car door integrally, so that installation and debugging are facilitated, and safety performance is good.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to an elevator integrated car door lock asynchronous door knife device. Background technique [0002] The widespread use of elevators has brought great convenience to people's lives. At the same time, the safety performance of elevators has also attracted increasing attention. [0003] my country's national standard stipulates: "The horizontal distance between the inner surface of the elevator shaft and the edge of the nearest door of the car sill, car door frame or sliding door should not be greater than 0.15m. If the car is equipped with a mechanically locked door and can only When the landing door is opened in the unlocking area, except for special circumstances, the operation of the elevator should automatically depend on the locking of the car door, and the locking of the car door must be confirmed by an electrical safety device, then the above distance is not limited.” [00...

AI Technical Summary

Problems solved by technology

[0005] However, the cost of installing a protective wall on the inner surface of the hoistway is relatively high, and the installation period of the elevator will be prolonged. To install an independent car door lock, it is necessary to set an unlocking blade on each floor, which requires the car door lock to be adjusted when the elevator is installed. And the unlocking blades on each floor are precisely adjusted to ensure that the unlocking blades on each floor can accurately open the car door lock. When the floor is too high, there will inevitably be deviations when the car runs up and down. The installation of the unlocking blade brings greater difficulty, and also greatly increases the failure rate of the car door lock

[0006] In the prior art, most of the door blades and car door locks of the elevator are set up separately. During installation, the coordination of the door blade and the car door lock needs to be debugged, which is not only inefficient, but also increases the failure rate

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