Control device for stepless speed change crane

The utility model discloses a control device for a stepless speed change crane. The control device comprises a potentiometer and a microswitch, the device further comprises a mounting base, an operating rod and a rotating base. The mounting seat is of a hollow box body structure, a rotating seat is arranged in the mounting seat, one side of the rotating seat is rotationally connected with the mounting seat through a rotating shaft, a potentiometer with a knob coaxial with the rotating shaft is arranged on the other side of the rotating seat, the knob of the potentiometer is fixedly connected with the rotating seat, and a shell of the potentiometer is fixedly connected with the mounting seat; microswitches are mounted on the two sides, corresponding to the rotating shaft, below the rotating seat; an operating rod extending out of the mounting seat is arranged at the top of the rotating seat, and a strip-shaped slot capable of deflecting the operating rod is formed in the position, corresponding to the operatin