Stair cleaning robot

Abstract

The invention discloses a stair cleaning robot which comprises a moving mechanism, a lifting device is fixed to the upper end of the moving mechanism, sweeping mechanisms are arranged on the two opposite sides of the lifting device respectively, horizontal moving devices are fixedly arranged on the two opposite sides of the lifting device respectively, and the sweeping mechanisms are connected with the horizontal moving devices in a one-to-one correspondence mode. The sweeping mechanism comprises a connecting frame, at least one direction conversion device and at least one broom, the direction conversion device comprises a first rotating joint, a cross rod and a second rotating joint, the first rotating joint is fixed to the lower end of the connecting frame, one end of the cross rod is rotationally connected with the first rotating joint, and the other end of the cross rod is fixed to the second rotating joint; a motor base is rotationally connected to the second rotating joint, a third motor is fixed to the motor base, and driving shafts of the third motor are fixed to the brooms in a one-to-one correspondence mode; the stair climbing robot has the advantages that the robot can climb stairs automatically and sweep the horizontal plane and the vertical plane of the stairs, so that the stairs are swept comprehensively and thoroughly.

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