Automatic cleaning apparatus

Abstract

An automatic cleaning apparatus, including a first rolling brush including a first brush member, and a second rolling brush arranged substantially in parallel to the first rolling brush and including a second brush member. As the first rolling brush and the second rolling brush rotate, the first brush member and the second brush member rotate to a position where the first brush member and the second brush member approach each other, and a point where the first brush member and the second brush member approach each other moves dynamically in a predetermined direction.

1 - 21 . (canceled) 
     
     
         22 . An automatic cleaning device, comprising:
 a first rolling brush comprising a first brush member; and   a second rolling brush arranged substantially in parallel to the first rolling brush and comprising a second brush member;   wherein as the first rolling brush and the second rolling brush rotate, the first brush member and the second brush member rotate to a position where the first brush member and the second brush member approach each other, and a point where the first brush member and the second brush member approach each other moves dynamically in a predetermined direction.   
     
     
         23 . The automatic cleaning device according to  claim 22 , wherein
 the predetermined direction is a direction from both ends of the first rolling brush or the second rolling brush to a middle of the first rolling brush or the second rolling brush in an axial direction of the first rolling brush or the second rolling brush; or   the predetermined direction is a direction from one end of the first rolling brush or the second rolling brush to the other end of the first rolling brush or the second rolling brush in an axial direction of the first rolling brush or the second rolling brush.   
     
     
         24 . The automatic cleaning device according to  claim 22 , wherein
 the first brush member and/or the second brush member are/is V-shaped structure(s); or   the first brush member and/or the second brush member are/is spiral structure(s).   
     
     
         25 . The automatic cleaning device according to  claim 22 , wherein
 the first brush member is not in contact with the second brush member when the first rolling brush and the second rolling brush rotate; or   the first brush member and the second brush member abut against each other when the first rolling brush and the second rolling brush rotate.   
     
     
         26 . The automatic cleaning device according to  claim 22 , wherein at least one of the first rolling brush or the second rolling brush further comprises a cylindrical member and a shaft lever, the cylindrical member and the shaft lever have basically the same lengths, and the cylindrical member and the shaft lever are coaxially arranged. 
     
     
         27 . The automatic cleaning device according to  claim 26 , wherein the shaft lever comprises a supporting surface for supporting the cylindrical member in a contact manner, and 
       wherein at least a part of the supporting surface of the shaft lever of the at least one of the first rolling brush or the second rolling brush is incompressible; or
 the supporting surface of the shaft lever of the at least one of the first rolling brush or the second rolling brush is completely incompressible; or 
 wherein the shaft lever is a hard lever, and the cylindrical member is incompressible in a radial direction of the shaft lever. 
 
     
     
         28 . The automatic cleaning device according to  claim 27 ,
 wherein at least one end of the first rolling brush and at least one end of the second rolling brush each comprises an assembly part for assembly of the first rolling brush and the second rolling brush in place in the automatic cleaning device, the whole or a part of the assembly part and the shaft lever are integrally formed, and an outer side end surface of the assembly part is closer to a center of the shaft lever than an outer end surface of an end of the shaft lever to which the assembly part corresponds; and   wherein at least one end of the first rolling brush and at least one end of the second rolling brush each further comprises an end portion member, the end of the shaft lever to which the assembly part corresponds away from the center of the shaft lever is provided with an accommodation space, and a part of the end portion member is inserted into the accommodation space to be mounted with the assembly part in a matching manner.   
     
     
         29 . The automatic cleaning device according to  claim 28 , wherein the assembly part comprises N first repeatable units in a circumferential direction of the assembly part, the end portion member further comprises a guide rod arranged on a side opposite to where the assembly part is arranged, and the guide rod comprises a guiding portion, and wherein the guiding portion comprises N second repeatable units in a circumferential direction of the guide rod, where N is a positive integer and N is greater than or equal to 2. 
     
     
         30 . The automatic cleaning device according to  claim 29 , wherein at least one of the first brush member or the second brush member comprises a plurality of brush parts, and the number N constitutes a divisor of the number of the plurality of brush parts, the N first repeatable units form a regular or irregular polygon, and the polygon is an N-sided polygon formed by a combination of straight lines and/or curves, and
 wherein the first repeatable units of the first rolling brush and the first repeatable units of the second rolling brush are different in shape, or   wherein a number of the second repeatable units at one end of the first rolling brush or the second rolling brush and a number of the second repeatable units at the other end of the first rolling brush or the second rolling brush are not divisors of each other.   
     
     
         31 . The automatic cleaning device according to  claim 30 , wherein the end portion member further comprises a blocking structure, and an external diameter of the blocking structure is greater than an internal diameter and an external diameter of the accommodation space, and wherein the blocking structure comprises a first wall, a concave portion and a second wall from outside to inside in an axial direction of the first rolling brush or the second rolling brush, and a thickness of the first wall is greater than a thickness of the second wall. 
     
     
         32 . The automatic cleaning device according to  claim 31 , wherein the plurality of brush parts comprises a first brush part and a second brush part, the first brush part comprises a first end portion and a second end portion, the first end portion is configured to be in contact with a surface to be cleaned when the automatic cleaning device is in operation, the second end portion comprises a thinned section, and the first brush part has a larger length than the second brush part in the radial direction. 
     
     
         33 . The automatic cleaning device according to  claim 30 , wherein the first brush part comprises a plurality of first brush parts, the second brush part comprises a plurality of second brush parts, and the plurality of the first brush parts and the plurality of the second brush parts are alternately arranged in a circumferential direction of the first rolling brush or the second rolling brush. 
     
     
         34 . The automatic cleaning device according to  claim 32 , wherein the first brush part of the first rolling brush and the second brush part of the second rolling brush are configured to face each other when the first rolling brush and the second rolling brush are mounted into a rolling brush chamber, and wherein the first brush part of the first rolling brush and the second brush part of the second rolling brush have different lengths in the radial direction. 
     
     
         35 . The automatic cleaning device according to  claim 32 ,
 wherein a surface of the first brush part is provided with a first bump, and/or a surface of the second brush part is provided with a second bump; and   wherein the first bump is arranged close to the first end portion of the first brush part, and/or the second bump is arranged close to a first end portion of the second brush part.   
     
     
         36 . The automatic cleaning device according to  claim 34 , wherein the rolling brush chamber is configured to accommodate the first rolling brush and/or the second rolling brush, wherein a distance from the second end portion of the first brush part to the first end portion of the first brush part is less than a minimum distance from the second end portion of the first brush part to an inner wall of the rolling brush chamber. 
     
     
         37 . The automatic cleaning device according to  claim 31 , wherein the accommodation space comprises an opening towards the end of the shaft lever, a respective outer end surface of the first rolling brush or the second rolling brush is flush with the opening of the accommodation space, and the blocking structure is spaced from the opening of the accommodation space by a preset distance. 
     
     
         38 . The automatic cleaning device according to  claim 29 , wherein the accommodation space comprises a first space segment, a second space segment, and a third space segment, the first space segment is configured to accommodate at least a part of the guide rod, the second space segment comprises a structure matched with a shape of the guiding portion of the guide rod to be connected with the guiding portion in a matching manner, the end portion member is further provided with a guide shaft, and the third space segment is configured to accommodate at least a part of the guide shaft. 
     
     
         39 . The automatic cleaning device according to  claim 38 , wherein an internal diameter of the first space segment is greater than an internal diameter of the second space segment, and/or the internal diameter of the second space segment is greater than an internal diameter of the third space segment. 
     
     
         40 . The automatic cleaning device according to  claim 38 , wherein the guide shaft comprises a fastener arranged along an outer peripheral surface of the guide shaft, and the fastener is an annular groove or a ring-shaped protrusion structure, and wherein the guide rod is an injection molded member, and the guide shaft is a metal member. 
     
     
         41 . The automatic cleaning device according to  claim 29 , wherein the guiding portion comprises at least one guiding portion, and is arranged on an outer peripheral surface of the guide rod, and the at least one guiding portion is uniformly distributed in a circumferential direction of the guide rod, and the guiding portion is a convex portion formed by etching a groove on the outer peripheral surface of the guide rod.