Elevator car door lock, elevator door operator and car door system with unlocking device

Abstract

The invention discloses an elevator car door lock with an unlocking device, which includes a rotating hook device, a follower hook, an unlocking device, and a limit plate. The rotating hook device is installed on the cross beam of the door machine and does not move with the movement of the car door , the rotating hook device can rotate around its rotation center relative to the beam of the door machine; the follower hook is installed on the car door and moves with the movement of the car door; the unlocking device is installed on the other car door and moves with the movement of the other car door ; The limit plate is installed on the beam of the door machine and does not move with the movement of the car door. When implementing emergency rescue, the car door lock can be opened or kept in an open state by pulling the pull rope, so as to effectively deal with the situation that the turning hook of the car door lock is on the door machine beam. The invention also discloses an elevator door machine and a car door system using an elevator car door lock with an unlocking device.

Description

technical field [0001] The invention relates to an elevator component, in particular to an elevator car door lock with an unlocking device. The invention also relates to an elevator door machine and a car door system using an elevator car door lock with an unlocking device. Background technique [0002] In the process of the elevator running up and down, in order to prevent passengers from falling down the hoistway after opening the door in the non-unlocking area, the car is required to be equipped with a mechanically locked car door lock, and when the car is opened outside the unlocking area, the car door cannot be opened. Greater than 50mm. In addition, it is also required that when the elevator fails, if the car is in the accidental movement protection area (UCMP area), the corresponding landing door can be opened, and the car door can be opened from the landing without tools, such as triangular unlocking tools or tools permanently installed on site. except. When the c...

AI Technical Summary

Problems solved by technology

In this way, if the stay cord is installed on the swivel hook, since the swivel hook is fixed on the beam, the stay cord cannot extend from the fixed swivel hook to the moving car door (the stay cord will be pulled when the car door moves )

When the car is leveling, due to the function of unlocking the baffle, opening the landing door will also open the car door at the same time, so that people in the car can be rescued. However, if the car cannot be leveled, after opening the landing door, the car door will still If the car door lock is closed and the position of the car door lock is much higher than the floor of the landing, it is difficult to open the car door lock without a pull rope device, and it is impossible to rescue the people in the car in time

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