The invention discloses an unlocking device for an elevator cab door lock. The unlocking device comprises an unlocking ejector rod, an ejector rod installation base, an ejector rod limiting plate and a pull rope device. The ejector rod installation base is connected with the unlocking ejector rod through an ejector rod rotating center. An ejector rod roller is arranged at the front end of the unlocking ejector rod. A weight is arranged at the front end of the unlocking ejector rod. The pull rope device is arranged at the rear end of the unlocking ejector rod. The ejector rod limiting plate is fixedly arranged on the ejector rod installation base. The initial position of the unlocking ejector rod is horizontal through the ejector rod limiting plate. A limiting rod is fixedly arranged on the ejector rod installation base. The limiting rod is used for controlling the maximum rotating angle of the unlocking ejector rod. When emergency rescue is performed, the cab door lock can be opened or the cab door lock is kept in the opening state by pulling a pull rope, and therefore the phenomenon that a rotating hook of the cab door lock is located on a portal crane beam is effectively dealt with.
Unlocking device for elevator cab door lock
2015-12-30
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |
Elevator car door lock with unlocking device, elevator door motor and car door system
Europäisches Patentamt | 2016
|UNLOCKING DEVICE OF ELEVATOR LANDING DOOR AND UNLOCKING SYSTEM OF ELEVATOR LANDING DOOR
Europäisches Patentamt | 2018
|