Automatic floor sweeping and mopping device

An automatic floor sweeping and mopping device, comprising:

• a main body;
• a rotational sweeping brush unit, disposed on the underside of the main body to sweep dusts off the floor;
• a dust collecting unit;
• two rolling wheels, one of which is provided on either side of the dust collecting unit to facilitate the forward movement of the device;
• a mopping unit, disposed behind the rotational sweeping brush unit on the underside of the main body and made of a soft, water-absorbing material to remove of residual finer dusts and dirt not removed by the rotational sweeping brush unit;
• a water spraying unit, which is an innovative feature, is provided above the mopping unit to keep the mopping unit in a clean condition by removing dusts and dirt adhering to it;
• a squeegee unit, provided near the frontal surface of the mopping unit to squeeze dirt and dirty water out of the mopping unit and keep the mopping unit in a clean, partially wet condition;
• and
• a water storing tank, disposed inside the main body and partitioned into two compartments—a clean water storing region and a dirty water storing region, characterized in that the clean water storing region supplies clean water to the water spraying unit and dirty water is transported back to the dirty water storing region.