Asynchronous door vane

Abstract

The invention discloses an asynchronous door vane which comprises a door vane base plate, and further comprises an upper left swing plate, an upper right swing plate, a lower left swing plate, a lower right swing plate, an upper connection rod assembly, a lower connection rod assembly, a left vane, a right vane, a limiting connection rod and a vane arm connection rod, wherein one end of the upper left swing plate is hinged with the front surface of the door vane base plate, and the other end of the upper left swing plate is hinged with the upper part of the left vane; the middle part of the lower left swing plate is hinged with the front surface of the door vane base plate; one end of the lower left swing plate is hinged with the left vane, and the other end of the lower left swing plate is hinged with one end of the vane arm connection rod; the other end of the vane arm connection rod is hinged with the lower right swing plate; a limiting pin shaft is arranged on the door vane base plate; a limiting waist hole is formed in the upper connection rod assembly; the limiting pin hole extends into the limiting waist hole; and the asynchronous door vane further comprises a cage door lock hook. Due to the design of the positions of all the assemblies and the design of the limiting pin shaft and the limiting waist hole, the asynchronous door vane can be self-locked in door opening and closing processes, so that the door vane can always lock a door holder no matter how high the reverse thrust of a landing door is.

Description

technical field [0001] The invention relates to an elevator door knife, in particular to an asynchronous door knife. 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 drives the door ball on the side of the landing door to unlock and link 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 the action of the door knife clamping the door lock of the landing door first, and then the car door and the landing door are linked together; this kind of door knife often makes abnormal noises at the moment of opening the door, which is not easy to solve; the asynchronous door knife is the door knife. It moves with the car door at the same time. Before the car door and the landing door are linked, the car door generally ...

AI Technical Summary

Problems solved by technology

At present, when the asynchronous door knife is used to open and close the door, some need to rely on the form of the door knife stroke connecting rod to drive the cam to keep the car door door knife clamping the door lock of the landing door device. This mechanism is affected by the length of the connecting rod and the door opening stroke. It is often easy to cause poor system operation stability, high cost, and has the disadvantages that it is not suitable for use on side-opening doors

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