Anti-unhooking device of lifting machine

The utility model discloses a lifting machine unhooking prevention device which comprises a bottom platform, a lifting mechanism is fixedly installed on the top of the bottom platform, a lifting machine platform is fixedly installed on the top of the lifting mechanism, an inner supporting arm main shaft body is arranged on the front side of the lifting mechanism, and an anti-disengaging fixing frame is fixedly connected to the front side of the top of the bottom platform. Sliding wheels are fixedly installed on the surface of the inner supporting arm main shaft body, the bottoms of the sliding wheels make contact with the ground, the anti-disengaging fixing frame is in an L shape, and the inner wall of the anti-disengaging fixing frame makes contact with the surface of the inner supporting arm main shaft body. According to the lifting machine, the bottom platform, the lifting mechanism, the lifting machine platform, the inner support arm main shaft body and the anti-falling fixing frame are matched with one a