Escalator step safety distance detector

Abstract

The invention discloses an escalator step safety distance detector. The escalator step safety distance detector is characterized in that a first laser sensor is fixed to a switch link located below a step board, through a first sensor holder; the first laser sensor is used for detecting a distance from the bottom of the step board to the top of the switch link; a second laser sensor is fixed to a surface of the foot board through a second sensor holder and a bottom seat and is used for detecting a horizontal gap between the step board and a skirt panel; a data acquisition unit is used for acquiring detection signals from the first laser sensor and the second laser sensor and converting the detection signals into digital detection signals; signals are transmitted between a main unit used for signal processing and the data acquisition unit through a wireless communication interface. The escalator step safety distance detector is simple in structure and convenient to install and is used to dynamically detect the distance from the step of an escalator to the top of the switch link and horizontal gaps between the step and the skit panels on two sides, thereby improving safety of the escalator.

Description

technical field [0001] The invention relates to the field of escalator detection, and mainly relates to a step safety distance detection technology of an escalator. Background technique [0002] According to the national standard GB16899-2011, the distance between the step and the apron plate of the escalator, and the distance between the step and the top of the cascade collapse switch link rod are one of the important inspection items of the escalator. In the special equipment safety technical specification TSGT7005-2012 inspection regulations, the distance between the steps and the apron board, and the safety protection of the step collapse are also included in the key items. At present, with the rapid development of my country's stations, docks, airports, large shopping centers and public transportation, the use of escalators is increasing, and safety accidents are also on the rise. For escalators in dynamic operation, how to detect the relevant safety distance, and prel...

AI Technical Summary

Problems solved by technology

[0003] Due to the current design characteristics of the escalator itself, it is required that the horizontal gap between the steps of the escalator and the apron plate is not greater than 4mm on one side, and the sum of the gaps measured at the symmetrical positions on both sides is not greater than 7mm, which is difficult to detect. The distance between them cannot be detected, so the escalator may run for a long time with a defective safety distance. Due to the lack of detection methods, these defects have not been discovered and corrected in time for a long time, resulting in safety accidents

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