ELEVATOR DOOR LOCK DEVICE

WIPO Patent Application WO/2018/166405

A1

Disclosed is an elevator door lock device, comprising a left fastening rod (100), a right fastening rod (200), a car door lock assembly (300), a landing door lock assembly (400) and a base (500), wherein the left fastening rod (100), the right fastening rod (200) and the car door lock assembly (300) are all rotatably connected to the base (500); the landing door lock assembly (400) is mounted on a landing door and the landing door lock assembly (400) comprises a roller assembly (410); when driven by a belt (800), the right fastening rod (200) is capable of performing reciprocating rotation between a first position and a second position relative to the base (500); and during the process of the right fastening rod (200) moving from the first position to the second position, the right fastening rod (200) pushes the roller assembly (410) to unlock the landing door assembly (400), and at the same time, the roller assembly (410) pushes the left fastening rod (100) to unlock the car door lock assembly (300). The method for opening the elevator door is successively unlocking a landing door lock and a car door lock, and finally enabling a car door and a landing door to be opened in a linkage manner, thus preventing the car door lock from becoming blocked during the process of opening the car door, and improving the reliability of elevator operation and the aesthetic feeling thereof.

HUO JUNCHAO (CN)

PCT/CN2018/078556

September 20, 2018

March 09, 2018

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HITACHI ELEVATOR CHINA CO LTD (CN)

B66B13/18

CN106744203A	2017-05-31
CN203877708U	2014-10-15
CN204727397U	2015-10-28
CN104085764A	2014-10-08
JP2008303003A	2008-12-18
EP1541517A1	2005-06-15

ADVANCE CHINA IP LAW OFFICE (CN)

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