Abstract: A floor cleaning device includes a brush assembly, a frame, a clean tank, a dirty tank, a suction assembly, a battery assembly and a control system. The frame is connected with the brush assembly. The clean tank is arranged on the frame and in a fluid communication with the brush assembly. The dirty tank is arranged on the frame and connected with the brush assembly. The suction assembly is arranged on the frame and connected with the dirty tank to form a negative pressure in the dirty tank and recover sewage after cleaning to the dirty tank. The battery assembly is arranged on the frame. The battery assembly at least includes a first/second battery pack. The control system controls the clean tank to supply water to the brush assembly and controls the suction assembly to recycle the sewage to the dirty tank.

Abstract: The disclosure provides a handheld vacuum cleaner and a vacuum cleaner brush assembly. The handheld vacuum cleaner includes a housing, a suction generating unit, a dirt collection unit and a battery pack. The housing includes a body, a holding portion and a base. The holding portion is arranged between the body and the base. The suction generating unit is mounted on a side of the body away from the holding portion. The dirt collection unit is mounted on the suction generating unit. The battery pack is detachably mounted on a side of the base away from the holding portion. Wherein, the holding portion includes a handle connected between the body and the base, and a supporting bracket. The handle is covered with a static conducting portion, and the static conducting portion is electrically connected with a static generating portion of the handheld vacuum cleaner.