Auxiliary door closing device for elevator hall door

Abstract

An auxiliary door-closing device for an elevator hall door. An auxiliary door-closing device with elastic components is provided on the upper sill of the elevator hall door. The upper end of the auxiliary door-closing device is connected to the upper sill of the elevator hall door, and a downward protrusion is provided at the lower end. The device for driving the hall door to close is provided with a driving part matched with the auxiliary door closing device; during the door closing process of the elevator, the protruding side of the auxiliary door closing device is first squeezed, and the elastic part is compressed during this process And store energy; after passing through the bulge of the auxiliary door closing device, the elastic component releases energy, and the other side of the bulge of the auxiliary door closing device pushes the hall door to continue closing, thus playing the role of auxiliary door closing. The device of the present invention provides auxiliary force at the closing end of the hall door on the basis of not increasing the force of the forced closing device of the hall door and newly adding control elements, which can effectively reduce the influence of the chimney effect of high-rise buildings on the failure of the elevator door to close the door, and reduce the Reduce the rate of sleepy people and improve the efficiency of elevator use.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to an auxiliary door closing device for elevator hall doors. Background technique [0002] With the increasing number of high-rise buildings, elevators, as a vertical transportation tool, bring great convenience to people's daily travel. However, the chimney effect of high-rise buildings has caused great difficulties to the use of elevators, especially the failure of the hall door of the elevator to close the door. The so-called chimney effect means that, for example, in winter cold areas, the outdoor ambient temperature of high-rise buildings is low, and the outdoor air density is greater than that of the room. Floating upwards and oozing out, the air in the shaft forms convection with the outside world, resulting in a large pressure difference between the elevator shaft and the lobby on the side of the hall door. The air pressure difference increases the resistance of the hall...

AI Technical Summary

Problems solved by technology

[0005] However, these methods require the addition of special detection units or additional auxiliary devices, or the addition of control system controls, which will lead to an increase in the driving force and power of the motor on the car door side; that is to say, these methods need to increase more The cost can only be used, and it is not easy to improve and optimize the old elevator, which is more inconvenient in practical application

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