Anti-pinch structure for elevator and anti-pinch method of anti-pinch structure

Abstract

The invention relates to an anti-pinch structure for an elevator and an anti-pinch method of the anti-pinch structure. The anti-pinch structure comprises a landing door, a lift car and a control module, a plurality of grooves are formed in the side face of a first door leaf, pressure detection devices are arranged on the inner walls of the grooves, telescopic rods are arranged on the side face of a second door leaf, and first proximity switches are arranged at the top end and the bottom end of the side, close to the lift car, of the landing door respectively. The top and the bottom of the lift car are matched with the two first proximity switches respectively, and a second proximity switch is arranged on the side face of the first door leaf. When the second proximity switch detects that the first door leaf and the second door leaf are closed, the control module controls the telescopic rods to be inserted into the grooves and controls the lift car to ascend or descend; when at least one first proximity switch is separated from the lift car, the pressure detection devices starts to work; and if a rope is clamped between the first door leaf and the second door leaf, when the rope makes contact with the telescopic rods and a pressure detection module detects a set pressure value, the control module controls the lift car to stop emergently and controls the lift car to return to the original landing door and open a door plate.

Description

technical field [0001] The invention belongs to the technical field of elevator equipment, and in particular relates to an anti-pinch structure and an anti-pinch method for an elevator. Background technique [0002] Elevator refers to the permanent transportation equipment that serves several specific floors in the building, and its car runs on at least two rigid rails that are perpendicular to the horizontal plane or at an inclination angle of less than 15° from the plumb line. There is also a step type, and the tread plate is installed on the crawler belt to run continuously, commonly known as an escalator or a moving walk. Fixed lifting equipment serving specified floors. A vertical elevator has a car running between at least two vertical or inclination angles of less than 15° rigid guide rails. The size and structure of the car are convenient for passengers to enter and exit or to load and unload goods. It is customary to use elevator as a general term for vertical tr...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an anti-pinch structure and anti-pinch method for elevators, which solves the problem that most existing elevators use infrared induction anti-pinch or mechanical pressure induction anti-pinch, but the above two anti-pinch structures are not suitable for children's traction ropes. Or pet leash, etc., the inspection effect of thin items is very poor, which is likely to cause safety accidents

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