Cleaning robot

A cleaning robot comprising:

• a main body having an exterior portion extending along a perimeter of the main body;
• wheels that are drivable to move the cleaning robot on a surface to be cleaned;
• a first rotation shaft;
• a first motor configured to rotate the first rotation shaft;
• a first holder coupled to the first rotation shaft and configured to support a first cleaning pad;
• and
• a frame, supported by the main body so as to be slidable in a straight movement, and supporting the first motor and the first holder,
• wherein the first rotation shaft, the first motor, the first holder, and the frame are configured such that, when the cleaning robot is on the surface to be cleaned and the first cleaning pad is supported by the first holder:
• the first rotation shaft is rotatable by the first motor along a first rotation axis that is perpendicular to the surface to be cleaned to cause the first holder to rotate and thereby rotate the first cleaning pad to clean the surface, and
• the first rotation shaft is laterally movable in a direction perpendicular to the first rotation axis, and the frame is slidable in the straight movement in the direction perpendicular to the first rotation axis, to:
• a pop-in position in which the first rotation shaft and the first motor are under the main body and not protruding beyond the exterior portion of the main body, and
• a pop-out position in which the first rotation shaft and the first motor are under the main body and not protruding beyond the exterior portion of the main body and the first holder is partially under the main body and partially protruding beyond the exterior portion of the main body.