Anti-off switch for elevator floor door

Abstract

The invention designs an anti-off witch for an elevator floor door which relates to a switch and solves the technical problem that the switch of a traditional elevator floor door is easy to fall off. The switch is characterized by comprising a moving contact arranged on a moving contact seat and a static contact arranged on a static contact seat; the static contact seat is provided with a fastener and a lead connecting piece, and the moving contact seat is provided with the fastener; and the moving contact and the static contact are respectively arranged on the side wall of the moving contact seat and the side wall of the static contact seat, extend outwards and can be mutually spliced. The anti-off switch for the elevator floor door adopts the splicing method, so that the effective contact area between the moving contact and the static contact is increased, original point contact is changed into surface contact, a certain contact stroke is achieved, and the disadvantage of easy fall-off of the prior art can be effectively prevented. The technical scheme has reasonable structure, is convenient to implement, can be conveniently used on the traditional elevator floor doors, and greatly improves the work stability of the switch.

Description

technical field [0001] The invention relates to a switch, in particular to an anti-off switch for elevator landing doors. Background technique [0002] At present, the switches on the elevator landing door device are all contact switches. The circuit is connected and disconnected through the contact and separation of two metal pointed contacts and a metal sheet. The biggest disadvantage of this contact switch is that it is easy to disengage. Open and cause the emergency stop of the elevator. For example: the airflow brought by the operation of the elevator car in the shaft will cause the vibration of the landing door device, so that the metal tip of the traditional contact switch is in poor contact with the metal sheet or even separated, which eventually leads to the emergency stop of the elevator. Other human factors are also likely to cause the vibration of the elevator landing door device, which leads to the above consequences. Therefore, in order to avoid the easy dise...

AI Technical Summary

Problems solved by technology

[0002] At present, the switches on the elevator landing door device are all contact switches. The circuit is connected and disconnected through the contact and separation of two metal pointed contacts and a metal sheet. The biggest disadvantage of this contact switch is that it is easy to disengage. open, resulting in an emergency stop of the elevator

For example: the airflow brought by the operation of the elevator car in the shaft will cause the vibration of the landing door device, so that the metal tip of the traditional contact switch is in poor contact with the metal sheet or even separated, which eventually leads to the emergency stop of the elevator

Other human factors are also likely to cause the vibration of the elevator landing door device, which leads to the above consequences

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