Double-wing landing door opening protection device

Abstract

The invention discloses an opening protection device for a dual-wing landing door. The opening protection device comprises a landing door opening / closing component, wherein the landing door opening / closing component comprises a positioning assembly, a swinging locking block and a limiting piece, wherein the positioning assembly is fixedly connected with a hanger plate of the landing door, and is used for supporting and positioning the swinging locking block; the swinging locking block is movably connected with the positioning assembly, and can swing up and down relative to the positioning assembly under the action of external force; the limiting piece is fixedly connected with a landing door guide rail frame, and is clamped with the swinging locking block in an interference fit way. The opening protection device has the beneficial effects that the opening protection device has the advantages of simple overall structure, simple manufacturing process, low cost and high universality; 2, a non-contact structure is adopted, so that freeness from wear and noise and low wear rate are achieved; 3, actions are flexible, and small-distance displacement can be realized by using the pressure of a car door driving stop lever on the driving wheel of a driving swinging arm in order to open a coupler lock swinging arm at a large angle, so that operation is convenient and easy; 4, high safety performance is achieved, the probability of accidental fall of operating personnel into a hoist way is lowered, and the personal safety of operators is guaranteed.

Description

technical field [0001] The invention relates to a landing door opening protection device, which belongs to the technical field of elevator equipment, in particular to a double-wing landing door opening protection device that provides safety guarantee for special operators. Background technique [0002] At present, during the maintenance and use of common elevator products, maintenance personnel or elevator management personnel usually use the triangular key that is standard in the elevator during daily use and maintenance, unscrew the triangular lock installed on the upper part of the landing door, and open the elevator landing door. Perform a series of operations such as entering the pit, observing the inner movement of the shaft, entering the car to start the elevator, and entering the car top for measurement, inspection and maintenance. [0003] Before carrying out the above-mentioned operations at present, the operator does not necessarily know whether the car stops at t...

AI Technical Summary

Problems solved by technology

The above-mentioned operations rely purely on subjective factors such as the operator's personal occupational habits, professional knowledge, sense of work responsibility, and personal safety awareness to ensure their own safety, while lacking mandatory protection devices from the elevator itself, there is a certain degree of danger.

On the other hand, when entering the car and car top, based on habitual, physical and mental conditions, the operator subjectively believes that the car must stop at this floor based on his daily habits, and the convenience of opening the landing door with the triangular key , it is easy to make a series of coherent actions such as opening the door and stepping into the "car" with coherent movements. At this time, if the car is not on the floor, it is easy to cause a serious accident of falling down the well and causing casualties

[0004] In order to avoid the above-mentioned serious accidents, a protective device for opening the landing door is generally provided. The existing protective device for opening the landing door is usually a contact type. When the car is not in the leveling area, the stop bar prevents the landing door from opening at a certain position

However, every time the beating plate reaches the leveling area, it needs to be in contact with the retaining rod parts, which is prone to noise and parts wear, and when the car is vibrating normally (such as abnormal vibration of guide shoes and guide rails) and abnormal vibration (such as earthquakes) There is a risk of device damage, which may easily lead to the failure of the landing door opening protection device

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