Disc brush for power scrubber and power scrubber having such a disc brush

Abstract

A disc brush for a power scrubber and a power scrubber having such a disc brush. The disc brush includes inner and outer disc bodies, the inner being disposed at an inner periphery of the outer, a scrubbing body being set at an underside of the inner disc body and at an underside of the outer disc body; the scrubbing bodies are differentiated into at least two degrees of hardness, a softer scrubbing body being set with a height not lower than that of a harder scrubbing body. The power scrubber includes a housing, an electric motor, a drive assembly, and the disc brush; the electric motor actuates, via the drive assembly, the disc bodies to rotate. A user may choose to use the softer or harder scrubbing body to scrub dirt dependent on a degree of dirtiness without a need of changing the disc brush, which improves user experience.

1 . A disc brush for a power scrubber, comprising an inner disc body and an outer disc body, the inner disc body being disposed at an inner periphery of the outer disc body, a scrubbing body being set at an underside of the inner disc body and at an underside of the outer disc body, respectively, wherein the scrubbing bodies are differentiated into at least two degrees of hardness, a softer scrubbing body being set with a height not lower than that of a harder scrubbing body. 
     
     
         2 . The disc brush for a power scrubber according to  claim 1 , wherein the scrubbing bodies are made of a same material, or the scrubbing bodies are made of different materials. 
     
     
         3 . The disc brush for a power scrubber according to  claim 1 , wherein the scrubbing bodies are formed by a softer sponge and a harder sponge, respectively, the softer sponge being set with a height larger than that of the harder sponge. 
     
     
         4 . The disc brush for a power scrubber according to  claim 1 , wherein the scrubbing bodies are formed by a softer bristle bundle and a harder bristle bundle, respectively, the softer bristle bundle being set with a height larger than that of the harder bristle bundle. 
     
     
         5 . The disc brush for a power scrubber according to  claim 4 , wherein the softer bristle bundle and the harder bristle bundle are formed of a plurality of bristles, respectively, a diameter of the bristles forming the softer bristle bundle being smaller than that of the bristles forming the harder bristle bundle. 
     
     
         6 . The disc brush for a power scrubber according to  claim 4 , wherein the softer bristle bundle and the harder bristle bundle are formed of a plurality of bristles, respectively, the bristles being formed into a wave shape. 
     
     
         7 . The disc brush for a power scrubber according to  claim 1 , wherein the softer scrubbing body is set with a height larger than that of the harder scrubbing body, height difference Δ h  therebetween ranging from 1 mm to 10 mm. 
     
     
         8 . The disc brush for a power scrubber according to  claim 1 , wherein the scrubbing bodies are formed by a softer scrubbing body disposed at the underside of the inner disc body and a harder scrubbing body disposed at the underside of the outer disc body; or, the scrubbing bodies are formed by a harder scrubbing body disposed at the underside of the inner disc body and a softer scrubbing body disposed at the underside of the outer disc body. 
     
     
         9 . The disc brush for a power scrubber according to  claim 1 , wherein a recessed cavity configured to receive the inner disc body is provided at the inner periphery of the outer disc body, the inner disc body, when being assembled with the outer disc body, being located in the recessed cavity, the undersides of the inner disc body and the outer disc body assembled together being set flush with each other.) 
     
     
         10 . A power scrubber, comprising a housing, an electric motor, and a drive assembly, the electric motor and the drive assembly being disposed inside the housing, the drive assembly comprising an inner shaft and an outer shaft sleeved outside the inner shaft, wherein the power scrubber further comprises the disc brush according to  claim 1 , the disc brush being disposed outside the housing, the inner disc body being removably connected to the inner shaft, the outer disc body being removably connected to the outer shaft, the electric motor actuating, via the drive assembly, the inner disc body and the outer disc body to rotate in opposite directions or in a same direction. 
     
     
         11 . A power scrubber, comprising a housing, an electric motor, and a drive assembly, the electric motor and the drive assembly being disposed inside the housing, the drive assembly comprising an inner shaft and an outer shaft sleeved outside the inner shaft, wherein the power scrubber further comprises the disc brush according to  claim 2 , the disc brush being disposed outside the housing, the inner disc body being removably connected to the inner shaft, the outer disc body being removably connected to the outer shaft, the electric motor actuating, via the drive assembly, the inner disc body and the outer disc body to rotate in opposite directions or in a same direction. 
     
     
         12 . A power scrubber, comprising a housing, an electric motor, and a drive assembly, the electric motor and the drive assembly being disposed inside the housing, the drive assembly comprising an inner shaft and an outer shaft sleeved outside the inner shaft, wherein the power scrubber further comprises the disc brush according to  claim 3 , the disc brush being disposed outside the housing, the inner disc body being removably connected to the inner shaft, the outer disc body being removably connected to the outer shaft, the electric motor actuating, via the drive assembly, the inner disc body and the outer disc body to rotate in opposite directions or in a same direction. 
     
     
         13 . A power scrubber, comprising a housing, an electric motor, and a drive assembly, the electric motor and the drive assembly being disposed inside the housing, the drive assembly comprising an inner shaft and an outer shaft sleeved outside the inner shaft, wherein the power scrubber further comprises the disc brush according to  claim 4 , the disc brush being disposed outside the housing, the inner disc body being removably connected to the inner shaft, the outer disc body being removably connected to the outer shaft, the electric motor actuating, via the drive assembly, the inner disc body and the outer disc body to rotate in opposite directions or in a same direction. 
     
     
         14 . A power scrubber, comprising a housing, an electric motor, and a drive assembly, the electric motor and the drive assembly being disposed inside the housing, the drive assembly comprising an inner shaft and an outer shaft sleeved outside the inner shaft, wherein the power scrubber further comprises the disc brush according to  claim 5 , the disc brush being disposed outside the housing, the inner disc body being removably connected to the inner shaft, the outer disc body being removably connected to the outer shaft, the electric motor actuating, via the drive assembly, the inner disc body and the outer disc body to rotate in opposite directions or in a same direction. 
     
     
         15 . A power scrubber, comprising a housing, an electric motor, and a drive assembly, the electric motor and the drive assembly being disposed inside the housing, the drive assembly comprising an inner shaft and an outer shaft sleeved outside the inner shaft, wherein the power scrubber further comprises the disc brush according to  claim 6 , the disc brush being disposed outside the housing, the inner disc body being removably connected to the inner shaft, the outer disc body being removably connected to the outer shaft, the electric motor actuating, via the drive assembly, the inner disc body and the outer disc body to rotate in opposite directions or in a same direction. 
     
     
         16 . A power scrubber, comprising a housing, an electric motor, and a drive assembly, the electric motor and the drive assembly being disposed inside the housing, the drive assembly comprising an inner shaft and an outer shaft sleeved outside the inner shaft, wherein the power scrubber further comprises the disc brush according to  claim 7 , the disc brush being disposed outside the housing, the inner disc body being removably connected to the inner shaft, the outer disc body being removably connected to the outer shaft, the electric motor actuating, via the drive assembly, the inner disc body and the outer disc body to rotate in opposite directions or in a same direction. 
     
     
         17 . A power scrubber, comprising a housing, an electric motor, and a drive assembly, the electric motor and the drive assembly being disposed inside the housing, the drive assembly comprising an inner shaft and an outer shaft sleeved outside the inner shaft, wherein the power scrubber further comprises the disc brush according to  claim 8 , the disc brush being disposed outside the housing, the inner disc body being removably connected to the inner shaft, the outer disc body being removably connected to the outer shaft, the electric motor actuating, via the drive assembly, the inner disc body and the outer disc body to rotate in opposite directions or in a same direction. 
     
     
         18 . A power scrubber, comprising a housing, an electric motor, and a drive assembly, the electric motor and the drive assembly being disposed inside the housing, the drive assembly comprising an inner shaft and an outer shaft sleeved outside the inner shaft, wherein the power scrubber further comprises the disc brush according to  claim 9 , the disc brush being disposed outside the housing, the inner disc body being removably connected to the inner shaft, the outer disc body being removably connected to the outer shaft, the electric motor actuating, via the drive assembly, the inner disc body and the outer disc body to rotate in opposite directions or in a same direction.