An elevator hall door power-assisted door closing device

Abstract

The invention discloses a power assisting closing device for elevator hall doors. A power assisting device is arranged on an upper sill of the elevator hall doors. The power assisting device has a stretching state and a contracting state. When the elevator doors are opened and closed, the power assisting device is in a stretching state and matches with a sedan door vane in an abutting mode, wherein at the closing end of an elevator, the power assist device makes use of the driving force of the sedan door to make the hall doors completely closed by matching with the sedan door vane in an abutting mode. In the ascending and descending process of the elevator, the power assisting device is in a contracting state, and has a certain gap with the sedan door vane so that the ascending and descending of the elevator can not be affected. On the basis of not increasing the force of a forced closing device of the hall doors, the power assisting closing device uses the driving force of the sedan door to make the hall doors completely closed at the closing end of to make the hall door completely closed without affecting the opening of the doors and the ascending and descending of the elevator.By the power assisting closing device for the elevator hall doors, the influence of the chimney effect of high-rise buildings on the failure that the elevator doors can not be closed is effectively reduced, the trapped rate is reduced, and the service efficiency of the elevator is improved.

Description

Technical field [0001] The present invention relates to the field of elevator technology, and more particularly to an elevator hall. Background technique [0002] High-rise buildings have increased increasingly, and elevators bring great conveniences to people's daily travel. However, the chimney effect of high-rise buildings has caused great difficulties in the use of elevators, especially the elevator door cannot be closed. The so-called chimney effect is, such as winter cold areas, the outdoor ambient temperature of high-rise buildings is low, outdoor air density is greater than indoor, outdoor cold air through the entrance of the building, hole, gap into the room, vertical vertical shaft of elevators, stairs and pipeline wells Floating and seep out the phenomenon, the air in the wellway is convected by the outside, resulting in a large pressure difference between the elevator wells and the door side of the hall. The resistance of the air pressure increased the resistance of t...

AI Technical Summary

Problems solved by technology

[0008] An elevator hall door booster door closing device, a booster device is arranged on the upper sill of the elevator hall door, and the booster device has an extended state and a contracted state; when the elevator door is opened and closed, the booster device is in an extended state, and Knives offset and cooperate, wherein, at the end of the elevator door closing, the booster device cooperates with the car door knife to completely close the hall door by using the driving force of the car door, which solves the problem that the hall door loses the car door side door motor at the end of door closing The driving force causes the problem that it cannot be completely closed; during the elevator going up and down, the booster device is in a contracted state, and has a certain gap with the car door knife, which will not affect the elevator; the booster device includes a bracket, Electromagnetic coils, springs, and shafts, the booster device is fixed on the door hanging plate on the upper sill of the hall door, the electromagnetic coil is arranged at the front end of the bracket, and the shaft is arranged at the front end of the axial position of the electromagnetic coil, The spring is connected to one end of the shaft and is located on the other side of the electromagnetic coil; when the electromagnetic coil is energized, the shaft moves to the side of the electromagnetic coil along the axis of the electromagnetic coil, and the booster The device is in a contracted state, and the shaft of the booster device has a certain gap with the car door knife, which does not affect the elevator; when the electromagnetic coil is de-energized, the shaft resets under the action of the spring, and the The booster device is in an extended state, and the front end of the shaft is in contact with the car door knife

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