Half-height type safety door

Abstract

The invention provides a half-height type safety door which comprises two fixed side boxes, two sliding doors and two sliding supporting rails. The half-height type safety door is characterized in that two pulley blocks are arranged on the bottom surface of each sliding door, and each pulley block is connected with the bottom surface of the sliding door through a fixing bracket; the two pulley blocks are positioned at two sides of the gravity center of the sliding door along the sliding direction of the sliding door; the two sliding supporting rails are respectively positioned below the bottom surfaces of the two sliding doors and are parallel with the ground; and the two pulley blocks can slide along the sliding supporting rails. The sliding doors of the half-height safety door are supported without using cantilevers so that the stress is balance, therefore, the service life of the sliding supporting rails can be prolonged.

Description

technical field [0001] The invention relates to a safety door, in particular to a half-height safety door. Background technique [0002] The subway screen door is a high-tech product integrating construction, machinery, materials, electronics and information, and is used on subway platforms. The screen door separates the platform from the train running area, and is automatically opened by the control system. [0003] Subway screen doors are divided into closed type, open type and half-height type, among which open type and half-height type are usually called "safety doors". [0004] The subway screen door system can reduce the cooling load of air-conditioning equipment by more than 35%, reduce the building area of ​​the environmental control room by 50%, and reduce the power consumption of air-conditioning by 30%, which has obvious energy-saving effects. [0005] With the popularity of subway screen doors, many domestic screen door manufacturers have gradually broken the m...

AI Technical Summary

Problems solved by technology

But such a structure has greatly affected the appearance aesthetics of the safety door.

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