Anti-collision safety early warning system for elevator landing door

Abstract

The invention discloses an anti-collision safety early warning system for an elevator landing door. The system comprises a mounting rack which is arranged on the front side of the landing door, the mounting rack is composed of a top rod, a left-side rod and a right-side rod, the top rod is provided with a landing door opening detection device used for detecting whether the elevator landing door isopened or not, and the opposite positions of the left-side rod and the right-side rod are provided with article existence and absence detection device used for detecting whether an article exist in front of the landing door or not; the system further comprises a control module and an alarm lamp, the landing door opening detection device, the article existence and absence detection device and thealarm lamp are connected with the control module correspondingly. According to the system, the signal is more accurate, the situation that a person easily triggers the system to cause false alarm whenthe person walks in a passageway can be avoided to the maximum degree, moreover, the influence caused by the temperature of a detected article and the temperature of the ambient environment is avoided, meanwhile, an active anti-collision intercepting device is installed, the impact risk is reduced to the largest extent through active intercepting, moreover, the system is completely independent and makes no contact with the control system of an elevator, so that no influence is caused to the elevator.

Description

technical field [0001] The invention relates to an elevator door anti-collision device, in particular to an elevator floor door anti-collision safety early warning system. Background technique [0002] The elevator floor door is the door that people see outside the elevator, also called hall door. Landing doors are generally composed of doors, guide rail frames, pulleys, sliders, door frames, sills and other components. However, when other objects or people approach the elevator landing doors, it is easy to hit the elevator landing doors, but when the elevator landing doors Once hit, it will be deformed, the lower part of the landing door will be derailed or the upper part of the door operator of the landing door will be stuck, or the track of the landing door device will be deformed and the main door operator will be damaged, or the landing door will fall. In the well, it will cause the danger of objects or people falling into the well. [0003] Chinese patent application...

AI Technical Summary

Problems solved by technology

Landing doors are generally composed of doors, guide rail frames, pulleys, sliders, door frames, sills and other components. However, when other objects or people approach the elevator landing doors, it is easy to hit the elevator landing doors, but when the elevator landing doors Once hit, it will be deformed, the lower part of the landing door will be derailed or the upper part of the door operator of the landing door will be stuck, or the track of the landing door device will be deformed and the main door operator will be damaged, or the landing door will fall. in the well, which will cause the danger of objects or people falling into the well

[0003] Chinese patent application number CN201610670388.5 discloses an elevator door anti-collision protection system and its use method, wherein the detection sensor is installed outside the elevator door, and the trigger area where the detection sensor responds to moving objects is the detection area, and the The detection sensor provides a switch signal through direct or indirect electrical connection with the anti-collision control device, and the floor position signal provides an elevator position signal to the anti-collision control device and the elevator control system, and the elevator control system is connected to the elevator control system. The anti-collision control device is electrically connected or integrated, the elevator control system is electrically connected to the elevator door control system, and the elevator door system directly controls the operation of the elevator door switch, but in this structure, the sensor is installed on the top to form a This kind of fan-shaped sensing area, this kind of structure range is too wide, people are easy to trigger the system when walking in the aisle, resulting in false alarms, the sensing accuracy is not high, when the temperature of the object and the surrounding environment is the same, it is difficult for the device to detect obstacles, and it needs to be wired to the control of the elevator If the equipment fails in the system, it will easily lead to elevator computer error signal interference and lead to safety hazards such as elevator accidents.

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