Anti-sinking structure applied to escalators or moving sidewalks

Abstract

The invention discloses an anti-sinking structure applied to escalators or moving sidewalks. The anti-sinking structure comprises a truss, protecting plates distributed on the left side and the right side above the truss, pedals positioned between the protecting plates, handrail straps located on the protecting plates and a cross beam arranged in the truss. The anti-sinking structure further comprises a light generating device and a light receiver, wherein the light generating device is located at the high end of the truss and the emitting opening faces the low end of the truss or is located at the low end of the truss and the emitting opening faces the high end of the truss, and light guiding devices are arranged between the light generating device and the light receiver. The light guiding devices are arranged between the light generating device and the light receiver, the detection is performed within the full range of the use section of the pedals, so as to better adapt to the installation conditions of stairs of the escalators or the moving sidewalks, and the application range is wider. In addition, due to the design of a baffle, the situation that the passenger is clamped due to sinking of the pedal can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of safety of escalators and moving walks, in particular to an anti-sag structure applied to escalators or moving walks. Background technique [0002] Because of their openness, escalators and moving walks are widely used in shopping malls and other places, but at the same time, such escalators and moving walks also expose some potential safety hazards. For example, on September 14, 2015, a pedal subsidence accident occurred on the sidewalk pedal of a supermarket in Changsha. Fortunately, there were no casualties. After research, it is found that the main danger of this kind of step or pedal sinking accident is that after passengers sink with the steps / pedals, there is no device at the bottom of the steps to prevent them from continuing to sink, and the stopping distance of the escalator / sidewalk varies according to the speed of the ladder. The difference, however, is more than 0.2m, that is, after the passe...

AI Technical Summary

Problems solved by technology

But this design has great restrictions on the installation position of the laser transmitter and laser receiver, especially there should be no obstacles between the laser transmitter and the laser receiver, which has great influence on the design and work of escalators and moving walks. Large restrictions, and the detection range is limited, it is impossible to detect the location near the machine room where accidents are most likely to occur, and when a subsidence occurs between adjacent detection devices, the safety circuit cannot detect the subsidence state, and the elevator cannot be stopped in time to prevent safety. The occurrence of the accident directly leads to the inability to promote the application of the technology

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