Safety control method and apparatus for elevator door

Abstract

The invention provides a safety controlling method and device of lift door; in the lift door controlling device automatically closing the lift door after the lift arriving to the destination floor, the device prevents the clothes or hands and other things of the passengers leaning on the lift door being clamped by the door pocket. Upper part of the opening end of the lift door is equipped with a reflection-type photoelectric sensor (1) shining the detection beam at the upper and lower direction to detect whether there is passenger near the opening end of the lift door. When the lift door is open, if the sensor (1) acts and replaces the usual lift door opening speed mode (31) by speed mode (32), which prolongs the slow speed opening area when the lift door is open equipped for joint of theleft car door and the lift lobby door. Furthermore, as the mode (33) shown, the lift door opening acceleration is reduced. And, when the sensor (1) detects there is obstacle during opening the lift door, as the mode (34) shown, the lift door opening action is stopped, and after ensuring the senor is not acted, the lift door opening action is restarted, thereby preventing the clothes or hands and other things of the passengers leaning on the lift door being clamped by the door pocket.

Description

technical field [0001] The invention relates to control of elevator doors, in particular to an elevator door safety control method and device capable of preventing the elevator door from being caught by a door pocket when it is opened. Background technique [0002] In the control device that automatically opens and closes the elevator door after the elevator reaches the destination floor, since the elevator passenger cannot grasp the opening time of the elevator hall door or the elevator door car door, when the passenger's hand, etc. comes into contact with the elevator door, it may Caught by the door pocket. [0003] In order to prevent the above situation, a method is disclosed in Patent Document 1. When the elevator stops, if an obstacle is detected near the opening end of the elevator car in the elevator car, a warning is issued and the The opening of the elevator doors is delayed for a specified time. [0004] In addition, Patent Document 2 discloses a method of openi...

AI Technical Summary

Problems solved by technology

[0007] According to the method of patent document 1, when detecting that there is an obstacle approaching the elevator car door, the time for delaying the opening of the elevator door, but if only delaying the time for opening the elevator door, then for the elevator passengers, due to its It is not known when the elevator doors will start to open, so this method is not sufficient as a measure to prevent getting caught in the door pockets

[0008] According to the method of patent document 2, when an elevator passenger approaches the opening end of the elevator car door, the elevator door is opened at a slow speed. Therefore, not only can it not prevent the effect of being caught, but it may disturb the rhythm of passengers getting off the elevator, resulting in a decrease in the efficiency of the elevator.

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