Escalator safety system

Abstract

The invention discloses an escalator safety system which comprises a monitoring relay, a processing module, a laser emitter and a laser receiver. The output end of the monitoring relay is connected into an escalator operation loop. The processing module controls the monitoring relay to be closed and opened. The laser emitter is provided with a laser emitting opening and arranged at the high end of an escalator and the emitting opening faces the low end of the escalator or the laser emitter is arranged at the low end of the escalator and the emitting opening faces the high end of the escalator. The laser receiver receives laser from the laser emitter and is in signal connection with the processing module. The laser receiver and the laser emitter which are matched are arranged at the high end and the low end of the escalator respectively. The laser emitter and the laser receiver are arranged in a well of the escalator. According to the escalator safety system, the problem that power is consumed due to the fact that infrared detectors are arranged densely or response is not in time due to the fact that infrared detectors are arranged sparsely is solved, one induction line can monitor multiple stairs at the same time, the detectors can achieve feedback immediately once the stairs fall down, the number of required detectors is small, and power consumption is low.

Description

technical field [0001] The invention relates to the field of escalators, in particular to an escalator safety system. Background technique [0002] Escalators have been widely used in public places such as shopping malls since they were invented. Such as figure 1 with figure 2 As shown, the existing escalator is installed in the hoistway 3, including a multi-stage circulation step 1 and a reversing shaft 2. A pit 7 is left at the upper and lower ends of the hoistway 3, a safety baffle 5 is provided between the pit 7 and the reversing step 1, and a cover plate 4 extending from the floor ground to the top of the horizontal step 1 is provided above the pit 7 . An escalator control cabinet 6 for controlling the operation of the escalator is arranged in the bottom pit 7 . For safety considerations, different positions of the escalator are generally provided with a plurality of emergency buttons connected to the escalator control cabinet 6 . When an emergency occurs, people...

AI Technical Summary

Problems solved by technology

If the number of infrared detectors is too large and the arrangement is too dense, the energy consumption will be quite large. If the number is insufficient and the arrangement is relatively sparse, the automatic stop will not be timely (the escalator will not be controlled until the falling steps run to the position where there are infrared detectors) Stop running), reduce the safety protection effect

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