Elevator landing door unlocking device and elevator landing door

Abstract

The invention relates to an elevator landing door unlocking device and an elevator landing door. The elevator landing door unlocking device comprises a landing door lock assembly, a triangular lock assembly, an unlocking deflector rod and a lock rod blocking seat. The triangular lock assembly comprises a lock body and a lock shaft rotationally connected with the lock body, and the lock shaft can rotate around the axial direction of the lock body relative to the lock body. The lock rod blocking seat is connected to the lock shaft and can synchronously rotate along with the lock shaft. One end of the unlocking deflector rod is connected to the landing door lock hook, the other end of the unlocking deflector rod extends to the rotating path of the lock rod blocking base, and the lock rod blocking base can be matched with the unlocking deflector rod in an abutting mode when rotating to drive the unlocking deflector rod to rotate so that the landing door lock hook can be rotationally opened. In this way, the unlocking part is prevented from being separated from the range where the unlocking deflector rod is located in the unlocking process, it is guaranteed that the landing door can be smoothly unlocked, the unlocking difficulty is reduced, meanwhile, the lock rod blocking base can play a role in blocking the unlocking deflector rod, the situation that the unlocking deflector rod generates vertical wind pressure in the vertical operation process of a lift car to form landing door lock assembly unlocking torque is avoided, and the safety of the lift car is improved. And the landing door lock assembly is instantaneously broken, so that the elevator is suddenly stopped.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to an elevator landing door unlocking device and an elevator landing door. Background technique [0002] The elevator floor door unlocking device is generally set on the door panel or the door cover beam. When the person outside the hall needs to open the elevator floor door, turn the triangular key, and drive the floor door lock to open through the structure of the pick, wire rope connection, etc. [0003] For the paddle type unlocking method, the paddle is driven by the rotation of the triangular lock cylinder, and the paddle drives the paddle just connected to the landing door lock hook to rotate, so that the landing door lock is opened. However, as the height of the landing door increases, the required lever length is longer. When the landing door is unlocked, when the rotation angle of the paddle and the lever increases to a certain extent, it is easy to cause the risk of sep...

AI Technical Summary

Problems solved by technology

However, as the height of the landing door increases, the length of the lever is required to be longer. When the landing door is unlocked, when the rotation angle of the lever and the lever increases to a certain extent, the risk of separation of the locked lever and the lock seat is likely to occur. Failed to unlock

[0004] For the wire rope unlocking method, as the number of times of unlocking increases, the wire rope will be fatigued, and there is a risk of breaking when the wire rope reaches the number of life spans, resulting in failure to unlock

Images