Device for prevent that elevator car from stopping in unexpected system that removes in door district

The utility model discloses a device for prevent that elevator car from stopping in unexpected system that removes in door district, including elevator control system CPU, said CPU output connects gradually relay drive circuit, relay K1, relay K1's winding connection relay drive circuit, two normally open contact of relay K1 connect respectively end and the long-range actuation coil of overspeed governor, and the long-range actuation coil of overspeed governor control speed limit ware moves. The utility model discloses just the elevator is in trivial of door under the state that the elevator band-type brake closed a floodgate, and CPU listens the encoder has crowd pulse signal to this judges that the car has taken place unexpected removal when men qu stops, the actuation of CPU control relay K1, thus put through the long-range actuation coil of overspeed governor, trigger the overspeed governor and move, make the action of two-way safety tongs carry the guide rail, the car is stopped to the system, and the accident that stops the car to be distinguished at the door moves, thereby improves system reliability greatly.