The invention relates to elevator car roof maintenance devices, in particular to an elevator car roof maintenance safety protecting device which comprises a supporting rod and a base. The supporting rod is rotatably arranged on the base, a contact is arranged on the supporting rod, and a contact seat is arranged on the base; when the rotating rod rotates to a horizontal position, the contact is connected with the contact seat, a circuit which controls running of an elevator is on, and the elevator is in a normal running state; the supporting rod rotates to a vertical position, the contact leaves the contact seat, the circuit which controls running of the elevator is off, a band-type brake works, and the elevator is in a safety maintenance state. The contact on the supporting rod is connected with or separated from the contact seat on the base to switch states of the elevator by changing states of the supporting rod, and the contact is in the normal running state when the contact is connected with the contact seat and is in the safety maintenance state when the contact is separated from the contact seat.
Elevator car roof maintenance safety protecting device
2015-04-08
Patent
Electronic Resource
English
IPC: | B66B Aufzüge , ELEVATORS |
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