Station door pinch preventing device

Abstract

The invention discloses a station door pinch preventing device. An infrared sensing module is arranged between a station door and a train door, a protective sleeve is arranged outside the infrared sensing module, a gap is reserved between the protective sleeve and the infrared sensing module, and an opening is formed in the protective sleeve corresponding to a sensing zone of the infrared sensing module. The station door pinch preventing device has the advantages of bump avoidance, rain proofing, dust proofing, perpendicular sunlight incidence prevention and the like. The several problems of an existing station door sensing device are solved, including that a lateral wagging phenomenon exists in the running process of a train, an infrared sensing device installed between the train door and a shield door is easily bumped by the train to produce displacement change (opening non-alignment is caused) or to be damaged, and accordingly the detecting accuracy is reduced; for a ground station, inflowing water easily causes short circuit of the infrared sensing device in rainy days, and device damage rate is increased; perpendicular incidence of sunlight in sunny days easily causes false alarming of the infrared sensing device; dust easily accumulates on the infrared sensing device after the infrared sensing device is installed, blurred vision is caused, and the sensitivity of the sensing device is affected.

Description

technical field [0001] The invention relates to a rail transit platform door safety technology, in particular to an anti-pinch device for a platform door. Background technique [0002] The subway is already a common public transportation system in the city. In order to protect the safety of passengers, screen doors are arranged on the train platform. The screen door has a certain distance from the edge of the platform, and the screen door ensures that passengers always stand in a safe position when the train enters. When the train arrives at the station, the doors and screen doors are opened, and passengers can enter the train. After passengers enter, the doors and screen doors are closed and the train exits. [0003] However, when passengers forcibly get on the train, or when the car is overcrowded, the passengers may be caught between the train door and the screen door. And this moment, car door and screen door all closed, because the distance between train door and sc...

AI Technical Summary

Problems solved by technology

[0005] 1. Since there will be left and right swings when the train is running, the infrared sensing device installed between the train door and the screen door is prone to displacement changes (causes the counterparts to be misaligned) or damage due to train collisions, reducing the detection efficiency. accuracy;

[0006] 2. For ground stations, rainy days are likely to cause water short-circuits in infrared sensors, increasing the equipment damage rate;

[0007] 3. For ground stations, direct sunlight on sunny days may easily cause false alarms from infrared sensors;

[0008] 4. After the infrared sensor is installed, it is easy to accumulate dust, causing blurred vision and affecting the sensitivity of the sensor

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