An elevator door lock structure

Abstract

The invention relates to an elevator door lock structure which comprises a landing door lock, a landing door lock hook, a door lock connecting bracket, an upper pull rod bracket, a pull rod, a lower pull rod bracket, a weight, a weight mounting plate and a landing door triangle lock, wherein the front end of the landing door lock is hooked with the landing door lock hook; one end of the door lock connecting bracket is fixedly connected with the tail end of the landing door lock, and the other end is rotationally pivoted with the upper pull rod bracket through a first pivot; one end of the pull rod is connected with the upper pull rod bracket through an adjusting screw, and the other end is connected with the lower pull rod bracket through an adjusting screw; the middle of the weight is rotationally pivoted to the weight mounting plate through a second pivot, and the weight mounting plate is fixed on an elevator landing door; one end of the weight is rotationally pivoted with the lower pull rod bracket through a third pivot, and the other end is close to the landing door triangle lock and shifted through rotation of the landing door triangle lock. The door lock height can be reduced, so that a maintaining or rescuing worker opens the landing door conveniently, further, the structure is reliable, and the operation is safe.

Description

technical field [0001] The invention belongs to the technical field of elevator accessories, and in particular relates to a door unlocking device for a vertical elevator. Background technique [0002] According to the requirements of the national standard GB7588, the elevator landing door must have a triangular lock, which is convenient for opening the landing door from outside the hall. Currently, the triangular lock is installed on the upper part of the landing door. The position of the triangular lock is too high, which is not conducive to personnel operation. [0003] Moreover, the position of the triangular lock affects the decoration of the customer's landing door, and the customer proposed to change the position of the door lock. [0004] For the current door opening lock structure, the position of the triangular lock can only be changed within a certain small range. For the height of the landing door above 2600, the triangular lock can only be set at 2300mm, and ordi...

AI Technical Summary

Problems solved by technology

[0004] For the current door opening lock structure, the position of the triangular lock can only be changed within a certain small range. For the height of the landing door above 2600, the triangular lock can only be set at 2300mm, and ordinary people cannot open it. Therefore, a new door opening lock structure is proposed.

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