Asynchronous door knife with car door lock, elevator door machine and car door system

Abstract

The invention discloses an asynchronous door knife having a car door lock; when a second unlocking blade device is suffered from the driving force in the door opening direction, the second unlocking blade device drives a swinging rod arm to rotate; the rotation of the swinging rod arm drives a guide mechanism to swing; the swinging of the guide mechanism drives a first unlocking blade to swing; the first unlocking blade drives a rotating hook of a rotating latch component to rotate to the unlocking direction after swinging, so that the rotating hook of the rotating latch component is released from a fixed hook, and the rotating latch component is unlocked; and meanwhile, the rotation of the rotating hook drives a driving door switch trigger to rotate, so that an electric contact of a beating plate type driving door switch is cut off. The asynchronous door knife has functions of opening the car door lock and opening / closing the door in place, and synchronously finishes the unlocking of the car door lock while opening a landing door in emergency rescue of a flat floor. The invention further discloses an elevator door motor having asynchronous door knife with the car door lock and a car door system adopting the elevator door motor.

Description

technical field [0001] The invention relates to an elevator component, in particular to an asynchronous door knife with a car door lock. The invention also relates to an elevator door machine with an asynchronous door knife with a car door lock and a car door system using the elevator door machine. Background technique [0002] When the elevator is running up and down, when the car is leveling with the landing, the door knife of the door machine on the side of the car generally drives the door ball on the side of the landing door to be linked together to realize the action of opening and closing the elevator door. [0003] Commonly used door knives include synchronous door knives and asynchronous door knives. The synchronous door knife is that the door knife first realizes the action of clamping the gate ball of the landing door, and then the car door and the landing door are linked together; the asynchronous door knife is that the door knife and the car door move at the sa...

AI Technical Summary

Problems solved by technology

[0009] The first problem is that there is no explanation in the verification of the electrical safety device, because for the asynchronous door knife, when the car door is opened, the rotating hook needs to follow the car door to move horizontally for a certain distance before turning. The commonly used plug-in switch and Flip switches are hard to come by

In the plug-in switch, the male contact is inserted into the female contact after the rotating hook is rotated. The insertion direction and the moving direction of the car door are perpendicular to each other or the male contact insertion direction and the rotating hook are perpendicular to each other when the car door is rotated. The movement of the turning hook or the rotation of the turning hook will cause the male contact to be stuck in the groove of the female contact; because the turning hook needs to move horizontally for a certain distance before turning, the horizontal movement of the car door at the beginning cannot be avoided. The contact and the flip cover are still connected, and the contact will galvanically corrode the conductive layer of the flip cover when it is charged, and produce an arc. The impact is easy to cause the contact spring piece to break, and the reliability is greatly reduced

[0010] The second problem is that there is no instruction on how to open the landing door and open the car door at the same time in emergency rescue, especially in leveling emergency rescue. However, emergency rescue is an unavoidable problem. Various standards and regulations require leveling. Including non-flat floors, it is necessary to be able to provide emergency rescue. If emergency rescue cannot be achieved, this structure cannot be applied in practice.

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