Elevator motor for building with prevent weighing down function

The utility model discloses an elevator motor for building with prevent weighing down function, include motor body, install the reduction gear of motor body front end and installing the stopper of motor body tail end, motor body includes motor housing, locates stator in the motor housing, locate rotor in the stator, motor body with be connected with anti -falling device between the reduction gear, anti -falling device includes casing, central pivot, clutch blocks mount pad, centrifugal clutch blocks and annular extension spring, the centrifugation clutch blocks is through two annular extension spring annular hoop is located the circumference surface of clutch blocks mount pad. The utility model discloses can ensure that the motor when taking load high altitude construction, in case outage or immobilization not maintained play a cushioning effect under acceleration effect, slows down tenesmus speed, avoid or alleviate the occurence of failure.