Cleaning robot

The utility model relates to the technical field of cleaning robots, solves the problem that the cleaning robot is poor in ridge crossing and walking ability, and adopts the technical scheme that the cleaning robot comprises a robot body, universal wheels and a lifting driving mechanism, the robot body comprises a mounting seat, and the lifting driving mechanism comprises a driving part, a driving screw rod and a transmission connecting part; the driving screw is connected to a rotating shaft of the driving piece, and the transmission connecting piece is in threaded connection with the driving screw and connected with the universal wheels. The lifting driving mechanism has the beneficial effects that the axes of the rotating shaft, the driving screw and the transmission connecting piece coincide, the axial integration degree of the lifting driving mechanism can be improved, and occupied space of the robot body is reduced; the rotating shaft, the driving screw and the transmission connecting piece form a spira