An automatic revolving door and its operating method when danger is detected

Abstract

PROBLEM TO BE SOLVED: To prevent a passerby from being pinched in a dangerous area in an automatic revolving door, and to prevent a hand of a passerby or an object from entering a clearance interposed between a rotary wing and an arcuate stationary wall and being pinched therebetween.SOLUTION: An automatic revolving door device includes: a canopy; arcuate stationary walls 800, 801; rotary wings 900, 901; a drive unit 100 for driving the rotary wings; a plurality of safety sensors 21, 22, 31, 32, 41, 42, 51, 52, 61, 62 provided so that any one of the safety sensors detects a passerby or an object in a danger detection area; a detection device for detecting the rotation positions of the rotary wings; and a control device connected to the plurality of safety sensors and the detection device. When the tip of the rotary wing passes the danger detection area G-C and one or more safety sensors detect the passerby or the object, the control device controls the drive unit to immediately stop and reverse the rotary wings 900, 901.

Description

technical field [0001] The invention relates to the technical field of revolving doors in buildings, in particular to a revolving automatic door and its operation method when danger is detected. Background technique [0002] Revolving automatic doors are widely used in public places such as hotels and restaurants because of their beautiful appearance and windproof advantages. According to the provisions of China Construction Industry Standard No. JG / T177-2005 "Automatic Doors", revolving automatic doors refer to two to four doors that rotate around the central axis and are controlled by signals. The door leaf and the drive device for driving the revolving door leaf to rotate, wherein, the canopy is the part on the upper part of the fixed door leaf used for installing the running device, and the fixed door leaf refers to the fixed part of the revolving door whose outer circumference is in an arc shape. [0003] Chinese customs and regulations require pedestrians to walk on t...

AI Technical Summary

Problems solved by technology

All the above solutions can solve the problem of trapping people in the revolving automatic door to a certain extent, but, restricted by factors such as the coverage of the sensor, the existing revolving automatic door is not safe enough, and it is easy to cause harm to petite children. There is a certain gap between the revolving door leaf and the fixed door leaf. Objects entering the gap will affect the normal operation of the automatic revolving door. If a person's hand enters the gap, there is a danger of being pinched

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