Asynchronous door knife of elevator integrated car door lock

Patent metadata

Field	Value
Publication number	US-2016236907-A1
Application number	US-201415024067-A
Country	US
Kind code	A1
Filing date	Aug 12, 2014
Priority date	Sep 23, 2013
Publication date	Aug 18, 2016
Grant date	—

Abstract

An asynchronous door knife comprises a track rack and a base plate; a dynamic blade and an unlocking blade which are connected on the front of the base plate in a swinging manner; a knife lifting ball which is arranged on the dynamic blade; a lock hook which is arranged on the back of the base plate and correspondingly buckled with a latch, wherein the unlocking blade is connected on the base plate through a lifting plate; the lifting plate is hinged on the base plate and comprises a first swing arm and a second swing arm; the first swing arm is hinged with the unlocking blade; the second swing arm is connected with an unlocking connecting rod; a lifting hole is additionally formed on the base plate; the middle of the lock hook is hinged with the unlocking connecting rod through the lifting hole.

First claim

1 . An asynchronous door knife of an elevator integrated car door lock, which comprises a track rack on a car and a base plate on a car door; a dynamic blade and an unlocking blade which are parallel and connected on the bottom surface of the base plate in a swinging manner; a knife lifting ball which is matched with the track rack and is arranged on the dynamic blade; a lock hook driven by the unlocking blade is arranged on the back surface of the base plate, and the lock hook is correspondingly buckled with a latch on the car, wherein the unlocking blade is connected on the base plate through a lifting plate; the lifting plate is hinged on the base plate and comprises a first swing arm and a second swing arm; the first swing arm is hinged with the unlocking blade; an unlocking connecting rod is connected on the second swing arm; a lifting hole is additionally formed on the base plate; the middle of the lock hook is hinged with the unlocking connecting rod through the lifting hole.

2 . The asynchronous door knife of the elevator integrated car door lock according to claim 1 , wherein there are two lifting plates which are vertically distributed; the lifting plates are of V-shaped structures; the first swing arm and the second swing arm are formed at two ends of each V-shaped structure; the tip end of the V-shaped structure of each lifting plate is hinged on the base plate; the first swing arms and the second swing arms are arranged upwards; the first swing arms of the two lifting plates are respectively hinged above and below the unlocking blade; the second swing arms of the two lifting plates are respectively hinged above and below the unlocking connecting rod; the unlocking connecting rod is parallel with the unlocking blade.

3 . The asynchronous door knife of the elevator integrated car door lock according to claim 1 , wherein the lock hook is of a V-shaped structure with one end formed into a lock catch part and the other end formed into a tail part; a catch head is arranged at the front end of the lock catch part; the catch head is matched and buckled with the latch; the tail part stretches out of the base plate and to the outer side of the unlocking blade; a first stop pin is additionally arranged on the unlocking connecting rod; the first stop pin runs through the lifting hole, and is located below the latch and a position deviating to the lock catch part.

4 . The asynchronous door knife of the elevator integrated car door lock according to claim 1 , wherein the dynamic blade is connected on the base plate in a swinging manner through two connecting rods; one end of each connecting rod is hinged on the base plate and the other end faces to the inner side of the base plate and is hinged on the dynamic blade; a second stop pin is arranged on the base plate below the two connecting rods.

5 . The asynchronous door knife of the elevator integrated car door lock according to claim 1 , wherein the track rack comprises a lifting track and a dropping rack; the lifting track and the dropping track are in transitional connection through an inclined track; the knife lifting ball is matched with the lifting track when the card door is closed.

6 . The asynchronous door knife of the elevator integrated car door lock according to claim 3 , wherein a pushing rod is arranged on the inner side face of the front end of the tail part of the lock hook; the pushing rod passes through the base plate and spans on the outer side of the dynamic blade; a manual pull rod is additionally connected on the front end of the tail part.

7 . The asynchronous door knife of the elevator integrated car door lock according to claim 1 , wherein a compressed spring is arranged in the front of the lock catch part of the lock hook; the other end of the compressed spring is connected on a bracket; the bracket is fixed on the base plate.

8 . The asynchronous door knife of the elevator integrated car door lock according to claim 1 , further comprising a switch pin and a switch socket; the switch pin is fixed on the lock hook; the switch socket is fixed on a landing door; the switch pin is matched and connected with the switch socket when the car levels off.

9 . The asynchronous door knife of the elevator integrated car door lock according to claim 3 , wherein the catch head is a reverse hook; a cushioning inclined surface is formed on the outer side of the catch head reverse hook.

10 . The asynchronous door knife of the elevator integrated car door lock according to claim 2 , wherein on the position close to the second swing arm, a third stop pin is arranged in a groove of the V-shaped structure of the lifting plate.

Assignees

• Otis Elevator Co

Inventors

• Zhang Xiaobo
• Cai Qingxi
• Dong Xiaoxiao
• Chen Minchao
• Qiao Senyuan

Classifications

• B66B13/12 Primary

  Arrangements for effecting simultaneous opening or closing of cage and landing doors · CPC title