floor brush, cleaning device and cleaning system

Abstract

Floor brush, characterized in that it comprises: a base, wherein the base includes a water tank receptacle configured to receive a fresh water tank; a roller brush rotatably mounted at one end of the base and having a receiving cavity inside it; a drive device arranged in the receiving cavity and configured to drive the roller brush to rotate; wherein the water tank receptacle includes a first recess and a second recess, the first recess and the second recess being arranged in a direction parallel to the axis of the roller brush.