Power scrubber

Abstract

A power scrubber including a housing, an electric motor, a drive assembly, and a disc brush, the electric motor and the drive assembly being disposed inside the housing, the disc brush being disposed outside the housing, the electric motor driving the disc brush to spin, the disc brush including inner and outer disc bodies, the outer disc body being disposed surrounding an outer periphery of the inner disc body, a first bristle bundle being set on a lower surface of the inner disc body, a second bristle bundle being set on a lower surface of the outer disc body; a plurality of third bristle bundles distributed circumferentially at even intervals are set on an outer peripheral surface of the outer disc body, the third bristle bundles extending outward from the outer peripheral surface of the outer disc body in a direction away from the center of the disc brush.

1 . A power scrubber, comprising a housing, an electric motor, a drive assembly, and a disc brush, the electric motor and the drive assembly being disposed inside the housing, the disc brush being disposed outside the housing, the electric motor driving, via the drive assembly, the disc brush to spin, the disc brush comprising an inner disc body and an outer disc body, the outer disc body being disposed surrounding an outer periphery of the inner disc body, a first bristle bundle being set on a lower surface of the inner disc body, a second bristle bundle being set on a lower surface of the outer disc body, wherein a plurality of third bristle bundles distributed circumferentially at even intervals are set on an outer peripheral surface of the outer disc body, the third bristle bundles extending outward from the outer peripheral surface of the outer disc body in a direction away from the center of the disc brush. 
     
     
         2 . The power scrubber according to  claim 1 , wherein the third bristle bundles are arranged in circles along the outer peripheral surface of the outer disc body. 
     
     
         3 . The power scrubber according to  claim 1 , wherein the third bristle bundles extend outward along radial directions of the outer disc body. 
     
     
         4 . The power scrubber according to  claim 1 , wherein the third bristle bundles have a length L ranging from 10 mm to 40 mm. 
     
     
         5 . The power scrubber according to  claim 1 , wherein the first bristle bundle has a hardness different from that of the second bristle bundle. 
     
     
         6 . The power scrubber according to  claim 1 , wherein the electric motor actuates, via the drive assembly, the inner disc body and the outer disc body to rotate in opposite directions; and the drive assembly comprises an inner shaft and an outer shaft, the outer shaft being sleeved outside the inner shaft, the outer disc body being connected to a lower end of the outer shaft, the inner disc body being connected to a lower end of the inner shaft. 
     
     
         7 . The power scrubber according to  claim 6 , wherein a latch configured to lock the outer shaft and a spring acting on the latch are provided on the housing, the latch compressed to lock the outer shaft causes the spring elastically deformed, and the spring recovering from deformation drives the latch to be released and disengaged from the outer shaft. 
     
     
         8 . The power scrubber according to  claim 7 , wherein a plurality of slots for inserting the latch distributed circumferentially at intervals are set on an outer peripheral surface of the outer shaft. 
     
     
         9 . The power scrubber according to  claim 6 , wherein the lower end of the outer shaft projects out of the housing and is set with a male thread, a connecting hole extending axially is provided in the center of the outer disc body, a female thread is set on a hole wall of the connecting hole, the outer disc body is connected to the lower end of the outer shaft via fitting between the female thread and the male thread; and/or, the lower end of the inner shaft projects out of the housing and is provided with a snap connector, a fit-in hole is provided in the center of the inner disc body, and the inner disc body is connected to the lower end of the inner shaft via fitting between the fit-in hole and the snap connector. 
     
     
         10 . The power scrubber according to  claim 6 , wherein a plurality of finger grooves inwardly recessed towards the center of the inner disc body are set at intervals on the outer peripheral surface of the inner disc body; and/or, the outer disc body is provided with a recessed cavity configured to receive the inner disc body, the recessed cavity being inwardly recessed upward from the lower surface of the inner disc body.