Elevator anti-falling device and lead screw transmission elevator applying same

An elevator anti-falling device and a lead screw transmission elevator applying the same comprise a lifting platform, the lifting platform is movably connected to the front surface of a rack, the rackis fixedly installed above a base, a servo electric cylinder is fixedly installed on the inner side of the lifting platform, and the end of a driving shaft of the servo electric cylinder is fixedly connected with one end of a connecting arm. A fixing ring is fixedly installed at the other end of the connecting arm and fixedly installed on the outer surface of the moving shaft, the two ends of themoving shaft are movably connected with linear bearings in a sleeved mode, and the linear bearings are fixedly installed on the two sides of the lifting platform through linear bearing seats; bafflesare fixedly installed on the two side faces of the machine frame correspondingly, long groove type holes are evenly formed in the baffles, the long groove type holes in the two sides of the machine frame are formed in a stagge