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Elevator door lock

A technology for door locks and elevators, which is applied to elevators in buildings, building locks, locks controlled by non-mechanical transmission, etc., which can solve problems such as car safety hazards and achieve the effect of ensuring accuracy

Active Publication Date: 2014-12-10
SHUN DA BO NAI TE ELEVATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem in the prior art that the elevator car can still go up and down when the elevator door lock is not locked, so there is a potential safety hazard, and to provide a safe elevator door lock, which can automatically detect the state of the door lock. The car will not start when the elevator door lock is not locked, which can improve the safety performance of the elevator

Method used

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Examples

Experimental program
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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Such as figure 1 In the shown embodiment, an elevator door lock includes a deadbolt 3 arranged on the door frame 2 of the landing door 1, and a lock catch 4 arranged on the landing door 1 and cooperating with the deadbolt to lock the landing door, It also includes a door lock in-position detection circuit and a bolt-type door lock in-position detection switch 5 associated with the action of the deadbolt. The door lock in-position detection switch is connected in series in the door lock in-position detection circuit, so that when the landing door is normally locked 1. When the lock tongue enters the lock buckle to lock the landing door, the door lock in-position detection switch is closed and turned on, and the door lock in-position detection circuit can confirm that the elevator door lock is working normally, and the car can go up and do...

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Abstract

The invention discloses an elevator door lock which comprises an electrically controlled bolt disposed on a lintel of a landing door, a latch which is disposed on the landing door and used with the bolt to lock the landing door, an in-place locking detection circuit, and a pin-type in-place locking detection switch related to action of the bolt. The in-place locking detection switch is serially connected to the in-place locking detection circuit. The elevator door lock has the advantages that reliable locking of the landing door can be ensured, a car is unable to start when an elevator door lock is not locked, and accordingly safety of an elevator is improved; and the elevator door lock is simple in structure and high in reliability.

Description

technical field [0001] The invention relates to a safety device for elevator doors, in particular to an elevator door lock suitable for elevator landing doors. Background technique [0002] Elevators generally include a car that moves vertically between different floors in the hoistway. Each floor is equipped with a landing door to facilitate passengers to enter and exit the car. When the car is not at the leveling position, the landing door is closed to prevent passengers from falling into the car. Inside the well. In order to prevent passengers from artificially opening the landing door and thereby causing danger, a corresponding elevator door lock needs to be set on the landing door. The elevator door lock is opened when the car reaches the leveling position, so that the landing door can be opened. Existing elevator door locks usually adopt a mechanical structure. When the car reaches the leveling position, the elevator door lock is knocked open; when the car rises or de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B13/18E05B65/08E05B47/04E05B65/10
Inventor 张裕能潘辉姚云渭
Owner SHUN DA BO NAI TE ELEVATOR