Escalator moving footboard protection device

Abstract

The invention relates to an escalator moving footboard protection device. The escalator moving footboard protection device comprises a moving footboard and further comprises a pre-warning mechanism and a control mechanism, wherein the pre-warning mechanism comprises position detection switches, the upper portion or the side face of the moving footboard is provided with an alarm unit, the positiondetection switches are connected with the alarm unit through electric circuits, when the moving footboard is installed to an elevator outer frame normally, an alarm switch is pressed down, and the alarm unit is turned off; when loosening is generated between the moving footboard and the elevator outer frame, the alarm switch upsprings, and the alarm unit is turned on and gives an alarm; and the control mechanism comprises infrared correlation sensors installed at the bottom of the moving footboard, the infrared correlation sensors comprise infrared transmitters and infrared receivers, the infrared receivers are connected with a controller, and the controller is connected in a control circuit of an escalator to make emergency braking on the escalator. Compared with the prior art, the escalator moving footboard protection device forms two protection mechanisms, maintenance can be timely performed on the moving footboard generating abnormality, when a collapse eventually occurs, the emergency braking can be performed, and greater harm is avoided.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to a protective device for movable pedals of escalators. Background technique [0002] As a means of transportation, escalators have brought great convenience and speed to people's lives, but recently domestic escalators often have accidents involving people. The pedals include fixed pedals and movable pedals connected in sequence. Different manufacturing units have different numbers of movable pedals, usually one or two. There is a certain space under the movable pedals for inspection and maintenance by maintenance personnel. At present, the pedal structure of the escalator is simple, and it cannot fundamentally prevent the movable pedal from collapsing and deforming. When the escalator maintenance failure causes the movable pedal to deform, people step on it, which will easily cause the pedal to vibrate and make noise. In severe cases, the movable pedal collapses and causes seri...

AI Technical Summary

Problems solved by technology

At present, the pedal structure of the escalator is simple, which cannot fundamentally prevent the movable pedal from collapsing and deforming. When the escalator maintenance failure causes the movable pedal to deform, people step on it, which will easily cause the pedal to shake and make noise. In severe cases, the movable pedal collapses and causes serious injury accidents.

[0003] Existing escalator emergency braking devices are manually activated braking devices, and the mechanical structure at the bottom of the pedal is relatively complicated. People are easily involved when they fall, causing great danger to life

In the event of an emergency safety accident such as the collapse of the escalator pedal causing a person to fall, the method of braking the escalator by manually pressing the emergency stop button has great limitations. The victim causes irreversible physical damage. In addition, when an emergency occurs, the panic of the personnel will cause the braking of the escalator to be delayed, resulting in missing the best rescue time

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