The invention relates to a safety elevator prevented from being started by mistake. The safety elevator comprises an elevator lift car arranged inside a lift well, a rotating shaft penetrates through one side wall of the lift car, one end of the rotating shaft extends to the exterior of the lift car, a gear is arranged at one end of the part, located outside the lift car, of the rotating shaft, and a first transverse latch and a second transverse latch are arranged above and below the gear respectively and driven by the gear to stretch and retract in the transverse direction; locking grooves are formed in the positions, opposite to the end of the first transverse latch and the end of the second transverse latch, of the two side walls of the lift well respectively and used for inserting the end of the first transverse latch and the end of the second transverse latch. The two transverse latches are arranged outside the lift car of the safety elevator prevented from being started by mistake, in maintenance, a maintainer uses a triangular key and arranges the triangular key at the triangular prism end of the rotating shaft in a sleeving mode inside the lift car, the rotating shaft is rotated in the forward direction so that the transverse latches can be driven by the gear to move toward the side wall of the lift well, and the rotating shaft rotates until the ends of the transverse latches are completely inserted into the locking grooves. When the transverse latches are inserted into the locking grooves, the elevator can not ascend or descend even if the elevator is started suddenly, so that the personal safety of the maintainer is guaranteed.
Safety elevator prevented from being started by mistake
2015-09-16
Patent
Electronic Resource
English
IPC: | B66B Aufzüge , ELEVATORS |
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