CN216167240U

CN216167240U - Scrubbing brush subassembly and cleaning device

Info

Publication number: CN216167240U
Application number: CN202122343517.9U
Authority: CN
Inventors: 吴文俊; 梁广龙; 李朝政; 李文龙; 李磊
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-04-05
Anticipated expiration: 2031-09-26

Abstract

The present invention relates to a floor brush assembly and a cleaning device, the floor brush assembly comprising: a body; the rolling brush comprises a first end and a second end which are oppositely arranged in the axial direction, the rolling brush is connected with the body in a pivoting mode through the first end, the second end is arranged in a suspension mode, and at least part of the rolling brush is detachably connected with the body. Above-mentioned scrubbing brush subassembly and cleaning equipment, the round brush only one end and this body coupling, the other end is unsettled, sets up like this, when the assembly round brush, only needs to assemble the first end and the body of round brush, when dismantling the round brush, only needs to pull down the first end of round brush from the body, easy dismounting to user experience effect has been improved.

Description

Scrubbing brush subassembly and cleaning device

Technical Field

The utility model relates to the technical field of cleaning equipment, in particular to a floor brush assembly and cleaning equipment.

Background

With the development of economy and the progress of society, the quality requirements of people on life are higher and higher, cleaning equipment gradually enters the life of people, and the most common cleaning equipment comprises a floor washing machine, a dust collector, a sweeping robot and the like. Among them, floor washers are widely used because they have a washing and mopping integrated function.

The scrubber includes a floor brush assembly having a roller brush that rolls to carry dirt from the floor into the scrubber for collection. Easily twine the hair on the round brush, need dismantle the round brush this moment in order to wash it, there is the inconvenient problem of round brush dismouting in traditional scrubbing brush subassembly, leads to user experience relatively poor.

SUMMERY OF THE UTILITY MODEL

Therefore, the ground brush assembly and the cleaning equipment which are convenient for assembling and disassembling the rolling brush are needed to solve the problem that the rolling brush is inconvenient to assemble and disassemble.

A floor brush assembly, comprising:

a body;

the rolling brush comprises a first end and a second end which are oppositely arranged in the axial direction, the rolling brush is connected with the body in a pivoting mode through the first end, the second end is arranged in a suspension mode, and at least part of the rolling brush is detachably connected with the body.

In one embodiment, the roller brush comprises a transmission part at the first end and a roller in transmission connection with the transmission part, the roller can be switched between a first position and a second position relative to the transmission part, when the roller is located at the first position relative to the transmission part, the roller is locked on the transmission part, and when the roller is located at the second position relative to the transmission part, the roller can be separated relative to the transmission part.

In one embodiment, the roller brush is rotatable with respect to the body about an axis by the first end, and the roller is switchable between the first position and the second position with respect to the transmission portion in a rotational direction of the roller brush about the axis.

In one embodiment, in the axial direction of the rolling brush, the transmission part has a first surface arranged to face the roller, the roller has a second surface arranged to face the body, one of the first surface and the second surface is convexly provided with a protrusion, and the other is provided with a first groove;

the rolling brush is characterized in that the rolling brush is connected with a limiting part in the rotating direction of the axis, a second groove communicated with the first groove is arranged in one of the transmission part and the roller, which is provided with the first groove, the limiting part is limited in the second groove at the first position, the protrusion is arranged in the first groove, and the limiting part and the protrusion are arranged in the second groove at the second position.

In one embodiment, the roller comprises a roller body, a first end cover and a second end cover, the first end cover is arranged at one end, facing the transmission part, of the roller body in the axial direction of the roller, the second end cover is arranged and used for closing one end, facing away from the transmission part, of the roller body, and the roller is in transmission connection with the transmission part through the first end cover;

the first end cover and the second end cover are detachably connected with the cylinder body.

In one embodiment, one of the cylinder and the first end cover is convexly provided with a first positioning protrusion extending along the axial direction, the other one of the cylinder and the first end cover is concavely provided with a first positioning groove extending along the axial direction, and the first end cover is matched and fixed with the first positioning groove through the first positioning protrusion; and/or

One of the cylinder body and the second end cover is convexly provided with a second positioning bulge extending along the axial direction, the other one of the cylinder body and the second end cover is concavely provided with a second positioning groove extending along the axial direction, and the second end cover is matched and fixed with the second positioning groove through the second positioning bulge.

In one embodiment, the body comprises a shell and a fixed shaft, one end of the fixed shaft is fixedly connected with the shell, and the other end of the fixed shaft penetrates through and is supported in the rolling brush along the axial direction of the rolling brush;

the fixed shaft penetrates through the rolling brush, and the length of the fixed shaft is greater than or equal to 1/2 of the length of the rolling brush.

In one embodiment, in the axial direction of the roller brush, the end surface of the second end of the roller brush is flush with or protrudes from the outer surface of the body.

A cleaning appliance comprising a floor brush assembly as claimed in any one of the preceding claims.

In one embodiment, the cleaning apparatus is a scrubber.

Above-mentioned scrubbing brush subassembly and cleaning equipment, the round brush only one end and this body coupling, the other end is unsettled, sets up like this, when the assembly round brush, only needs to assemble the first end and the body of round brush, when dismantling the round brush, only needs to pull down the first end of round brush from the body, easy dismounting to user experience effect has been improved.

Drawings

FIG. 1 is a cross-sectional view of a floor brush assembly according to one embodiment of the present disclosure;

FIG. 2 is a schematic structural view of a cross-sectional view of the floor brush assembly shown in FIG. 1;

FIG. 3 is an isometric view of the floor brush assembly shown in FIG. 1;

FIG. 4 is an isometric view from a perspective of a portion of the structure of the floor brush assembly shown in FIG. 1;

FIG. 5 is an isometric view of the structure shown in FIG. 4 from another perspective;

FIG. 6 is a block diagram of a drive portion of the floor brush assembly shown in FIG. 1;

FIG. 7 is a block diagram of a first end cap of the floor brush assembly shown in FIG. 1;

FIG. 8 is another isometric view of the floor brush assembly shown in FIG. 1;

FIG. 9 is a cross-sectional view of another partial structure of the floor brush assembly shown in FIG. 1;

FIG. 10 is an isometric view of yet another partial structure of the floor brush assembly shown in FIG. 1;

FIG. 11 is an isometric view of a second end cap of the floor brush assembly shown in FIG. 1.

100. A floor brush assembly; 10. a body; 11. a housing; 111. a side wall; 112. an end wall; 12. a fixed shaft; 13. a support frame; 20. rolling and brushing; 21. a transmission section; 22. a drum; 221. a barrel; 222. a first end cap; 223. a second end cap; 224. a first positioning projection; 226. a second positioning projection; 228. a resisting part; 2281. a first abutment wall; 2282. a second abutment wall; 23. a receptacle portion; 24. a first groove; 25. a limiting part; 26. a second groove; 31. a drive section; 32. a first pulley; 33. a second pulley; 34. a belt; 41. a first bearing; 421. a first sub-bearing; 422. a second sub-bearing; 50. and a support plate.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As described in the background art, the rolling brush of the floor brush assembly has a problem of inconvenient disassembly and assembly, thereby resulting in poor user experience.

The inventors of the present application have found that the reason why the above problems occur is that: the scrubbing brush subassembly includes body and round brush, and the both ends of round brush all with this body coupling, when dismantling the round brush, need make the both ends of round brush all accomplish with the dismantlement of body, when assembling the round brush, need make the both ends of round brush all assemble on the body, like this, lead to the round brush dismouting inconvenient, and then lead to user experience poor.

Referring to fig. 1, an embodiment of the present invention provides a floor brush assembly 100, and specifically, the floor brush assembly 100 is disposed on a floor washing machine integrating a washing machine and a mopping machine. It should be understood that in other embodiments, the floor brush assembly 100 can be provided in other cleaning apparatuses, and is not limited herein.

The following describes the technical solution of the present application in detail, taking the floor brush assembly 100 as an example for application to a floor washing machine. The present embodiment is only for exemplary purposes and does not limit the technical scope of the present application. In addition, the drawings in the embodiments omit unnecessary components to clearly show the technical features of the application.

With continued reference to fig. 1, the scrubber includes a body and a floor brush assembly 100, the floor brush assembly 100 is assembled on the body, the floor brush assembly 100 includes a body 10 and a roller brush 20, the body 10 is connected with the body, and the roller brush 20 is pivotally connected with the body 10. When the scrubber requires cleaning work, the drum brush 20 of the floor brush assembly 100 rotates about an axis with respect to the body 10 to bring dust on the floor into the interior of the scrubber. Further, the floor washing machine further comprises a clean water tank, a sewage tank and a power element which are assembled on the machine body, water in the clean water tank flows to the rolling brush 20 to be used for mopping the ground under the rolling action of the rolling brush 20, and the power element provides power for dust and sewage formed by mopping so that the dust and the sewage enter the sewage tank to be collected.

Specifically, the rolling brush 20 includes a first end and a second end, the first end and the second end are disposed opposite to each other in the axial direction of the rolling brush 20, the rolling brush 20 is pivotally connected to the body 10 through the first end, the second end is disposed in a suspension manner, and at least a portion of the rolling brush 20 is detachably connected to the body 10. For the mode that among the prior art both ends of round brush 20 all are connected with body 10, the round brush 20 that this embodiment provided only one end is connected with body 10, and the other end is unsettled, sets up like this, when assembling round brush 20, only needs to assemble the first end and the body 10 of round brush 20, when dismantling round brush 20, only needs to pull down the first end of round brush 20 from body 10, easy dismounting to user experience effect has been improved. Meanwhile, since one end of the rolling brush 20 is connected to the body 10 and the other end is suspended, the hairs are not easily wound around the suspended end of the rolling brush 20, and compared to the case that both ends of the rolling brush 20 are connected to the body 10 (if both ends of the rolling brush 20 are connected to the body 10, the hairs are easily wound around the rolling brush 20) in the prior art, half of the hairs are relatively reduced to be wound around the rolling brush 20.

The body 10 includes a housing 11 and a fixed shaft 12, one end of the fixed shaft 12 is fixedly connected to the housing 11, and the other end of the fixed shaft 12 is supported in the rolling brush 20 along an axial direction of the rolling brush 20, so that the rolling brush 20 rotates around an axis relative to the fixed shaft 12. Specifically, the length of the fixing shaft 12 penetrating the rolling brush 20 is 1/2 which is greater than the length of the rolling brush 20, so that the rolling brush 20 is prevented from being deviated in the radial direction relative to the fixing shaft 12 when rotating, and the stability of the assembly of the rolling brush 20 is ensured. More specifically, the floor brush assembly 100 further includes a bearing supported between the stationary shaft 12 and the drum brush 20, an inner ring portion of the bearing is fixedly coupled to the stationary shaft 12, and an outer ring of the bearing is fixedly coupled to the drum brush 20, thereby facilitating the rotation of the drum brush 20.

The body 10 further comprises a support frame 13, and the fixed shaft 12 is fixedly connected with the shell 11 through the support frame 13. The housing 11 comprises a side wall 111 and an end wall 112 which are connected with each other, the side wall 111 is positioned at one side of the washing machine in the moving direction, the end wall 112 is positioned at the front end of the washing machine in the moving direction, the supporting frame 13 is connected with the side wall 111, or the supporting frame 13 is connected with both the side wall 111 and the end wall 112, so that the supporting effect of the supporting frame 13 is ensured.

Referring to fig. 2 and 3, in an embodiment, the floor brush assembly 100 further includes a driving member disposed on the body 10, the driving member includes a driving portion 31, a first belt pulley 32, a second belt pulley 33 and a belt 34, the first belt pulley 32 is connected to the driving portion 31, the second belt pulley 33 is connected to the first end of the rolling brush 20, and the belt 34 is sleeved outside the first belt pulley 32 and the second belt pulley 33. The driving part 31 drives the first belt pulley 32 to rotate, and the first belt pulley 32 drives the second belt pulley 33 to rotate through the belt 34, so as to drive the roller brush 20 to rotate relative to the fixed shaft 12. Specifically, the driving part 31 is a motor, and the floor brush assembly further includes a supporting plate 50 (see fig. 4 and 5) connected to the body 10, wherein the supporting plate 50 is used for supporting the first pulley 32. Of course, in other embodiments, the driving member may be omitted from the floor brush assembly 100, or the driving member may be disposed in a manner not limited to a belt-driven manner.

In one embodiment, the end surface of the second end of the rolling brush 20 is flush with the outer surface of the housing 11 or protrudes from the outer surface of the housing 11 in the axial direction of the rolling brush 20, so that the cleaning range of the rolling brush 20 can be increased, and the cleaning of the pollutants at the wall can be facilitated.

With reference to fig. 1, in an embodiment, the rolling brush 20 includes a transmission portion 21 at a first end and a roller 22 connected to the transmission portion 21, the fixed shaft 12 is disposed through the transmission portion 21 and the roller 22, and the second belt pulley 33 is connected to the transmission portion 21, such that the driving portion 31 drives the first belt pulley 32 to rotate and drives the second belt pulley 33 to rotate through the belt 34, the second belt pulley 33 drives the transmission portion 21 to rotate relative to the fixed shaft 12, and the transmission portion 21 drives the roller 22 to rotate relative to the fixed shaft 12. Specifically, a first bearing 41 is disposed between the transmission part 21 and the fixed shaft 12, and a second bearing is disposed between the roller 22 and the fixed shaft 12, so that the transmission part 21 and the roller 22 rotate relative to the fixed shaft 12.

Referring to fig. 6, in particular, the second pulley 33 is integrally formed with the transmission portion 21 for manufacturing. It is understood that, in other embodiments, the second pulley 33 and the transmission part 21 may be provided separately, and are not limited herein.

Further, the roller 22 is switchable between a first position and a second position with respect to the transmission portion 21, the roller 22 is locked to the transmission portion 21 when the roller 22 is in the first position with respect to the transmission portion 21, and the roller 22 is separable from the transmission portion 21 when the roller 22 is in the second position with respect to the transmission portion 21. With the arrangement, when the roller 22 needs to be detached from the transmission part 21 for cleaning, the roller 22 only needs to be located at the second position relative to the transmission part 21, and when the floor cleaning machine needs to work normally, the roller 22 only needs to be located at the first position relative to the transmission part 21. In this embodiment, the roller 22 is removed for cleaning, it being understood that in other embodiments, the entire roller brush 20 may also be removed for cleaning.

In one embodiment, the roller 22 is switchable between a first position and a second position with respect to the transmission portion 21 in a rotational direction of the drum brush 20 about the axis. That is, in the present embodiment, the drum 22 is switched between the first position and the second position by rotation. It should be understood that in other embodiments, the roller 22 can be switched between the first position and the second position in other moving manners, such as a linear moving manner, which is not limited herein.

In one embodiment, the transmission portion 21 has a first surface facing the roller 22, the roller 22 has a second surface facing the body 10, and the first surface and the second surface are respectively provided with a receiving portion 23 (see fig. 6) and a first groove 24 (see fig. 7) in the axial direction of the roller brush 20. In the rotation direction of the roller brush 20 around the axis, the accommodating portion 23 is connected to a limiting portion 25 (see fig. 6), one of the transmission portion 21 and the drum 22, which is provided with the first groove 24, is provided with a second groove 26 (see fig. 7) communicated with the first groove 24, the limiting portion 25 is limited in the second groove 26 at the first position, the accommodating portion 23 is arranged in the first groove 24, and at the second position, the limiting portion 25 and the accommodating portion 23 are both arranged in the second groove 26. Thus, when the roller 22 and the transmission part 21 need to be fixed, the limiting part 25 and the accommodating part 23 are both accommodated in the first groove 24, the roller 22 and the transmission part 21 rotate with each other, and the limiting part 25 is limited in the second groove 26; when the roller 22 needs to be detached from the transmission part 21, the roller 22 and the transmission part 21 are rotated in opposite directions, and at this time, the limiting part 25 is rotated into the first groove 24, and the roller 22 can be detached from the transmission part 21 along the axial direction.

Specifically, the accommodating portion 23 and the limiting portion 25 are both disposed on the drum 22, and the first groove 24 and the second groove 26 are both disposed on the transmission portion 21. Alternatively, the accommodating portion 23 and the limiting portion 25 are both disposed on the transmission portion 21, and the first groove 24 and the second groove 26 are both disposed on the drum 22. More specifically, the end surface of the drum 22 has two accommodating portions 23 at two opposite ends in the radial direction, each accommodating portion 23 is connected with a limiting portion 25, the transmission portion 21 is provided with two first grooves 24 and two second grooves 26, and each first groove 24 is communicated with each second groove 26. When the roller 22 is at the first position relative to the transmission part 21, each limiting part 25 is limited in each second groove 26.

It should be understood that in other embodiments, the switching of the drum 22 between the first position and the second position relative to the transmission 21 may also be achieved in other ways.

It should be noted that, during normal operation of the floor washing machine, the rotation direction of the roller brush 20 and the fixed shaft 12 is set to be opposite to the direction in which the limiting portion 25 is screwed out of the second groove 26, so as to prevent the roller 22 and the transmission portion 21 from being separated from each other during the rotation of the roller brush 20.

Referring to fig. 8 and 9, in an embodiment, the roller 22 includes a cylinder 221, a first end cap 222 and a second end cap 223, in the axial direction of the roller 22, the first end cap 222 is disposed at an end of the cylinder 221 facing the transmission portion 21, the second end cap 223 covers and seals an end of the cylinder 221 facing away from the transmission portion 21, and the roller 22 is in transmission connection with the transmission portion 21 through the first end cap 222. Thus, the second end cap 223 can prevent external dust from entering the barrel 221, and the cleanness inside the barrel 221 is ensured.

Specifically, the first end cover 222 and the second end cover 223 are detachably connected to the cylinder 221, and when the drum 22 is cleaned, the drum 22 can be disassembled into three parts, so that each part can be cleaned separately.

Referring to fig. 9 and 10, the second bearing includes a first sub-bearing 421 and a second sub-bearing 422, the first sub-bearing 421 is disposed between the first end cap 222 and the fixed shaft 12, and the second sub-bearing 422 is disposed between the cylinder 221 and an end of the fixed shaft 12 away from the housing 11, so as to facilitate the rotation of the roller 22 relative to the fixed shaft 12. Specifically, the roller 22 has a guiding rib, and the second sub-bearing 422 is disposed between the guiding rib and an end of the fixed shaft 12 away from the housing 11.

In one embodiment, one of the barrel 221 and the first end cap 222 is provided with a first positioning protrusion 224 (see fig. 7) protruding in an axial direction, and the other one is provided with a first positioning groove (not shown) protruding in the axial direction, and the first end cap 222 is fixed to the first positioning groove by the first positioning protrusion 224. In one embodiment, the first positioning groove is disposed in the cylinder 221, and the first positioning protrusion 224 is protruded on the first end cap 222. In another embodiment, the first positioning protrusion 224 is protruded from the cylinder 221, and the first positioning groove is formed on the first end cap 222.

The outer peripheral surface of the end of the first end cover 222 close to the transmission portion 21 is provided with a resisting portion 228 (refer to fig. 9), the resisting portion 228 includes a first resisting wall 2281 and a second resisting wall 2282 (refer to fig. 7) which are connected with each other, the first resisting wall 2281 is connected with the first end cover 222, the second resisting wall 2282 is connected with the end of the first resisting wall 2281 which is not connected with the first end cover 222, the first resisting wall 2281, the first end cover 222 and the second resisting wall 2282 define and form an accommodating groove, one end of the cylinder 221 close to the transmission portion 21 is accommodated in the accommodating groove, the end surface of the cylinder 221 is abutted against the bottom wall of the accommodating groove, and the outer peripheral surface of the cylinder 221 is abutted against the side wall 111 of the accommodating groove.

In one embodiment, one of the barrel 221 and the second end cap 223 is provided with a second positioning protrusion 226 (see fig. 11) protruding axially, and the other is provided with a second positioning groove (not shown) protruding axially, and the second end cap 223 is fixed by the second positioning protrusion 226 in cooperation with the second positioning groove. In one embodiment, the second positioning groove is disposed in the barrel 221, and the second positioning protrusion 226 is disposed on the second end cap 223. In another embodiment, a second positioning protrusion 226 is provided in the barrel 221 and a second positioning groove is provided on the second end cap 223.

In another embodiment of the present invention, a cleaning apparatus including the above floor brush assembly 100 is further provided, in which only one end of the rolling brush 20 is connected to the body 10, and the other end is suspended, so that when the rolling brush 20 is assembled, only the first end of the rolling brush 20 needs to be assembled with the body 10, and when the rolling brush 20 is disassembled, only the first end of the rolling brush 20 needs to be disassembled from the body 10, which is convenient for disassembly and assembly, thereby improving the user experience effect.

In particular, the cleaning device is a floor scrubber. It should be understood that in other embodiments, there is no limitation on the type of cleaning apparatus.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A floor brush assembly, comprising:

a body (10);

the rolling brush (20) comprises a first end and a second end which are oppositely arranged in the axial direction, the rolling brush (20) is in pivot connection with the body (10) through the first end, the second end is arranged in a suspension mode, and at least part of the rolling brush (20) is detachably connected with the body (10).

2. A floor brush assembly according to claim 1, characterized in that the roller brush (20) comprises a transmission portion (21) at the first end and a roller (22) in transmission connection with the transmission portion (21), the roller (22) being switchable between a first position and a second position relative to the transmission portion (21), the roller (22) being locked to the transmission portion (21) when the roller (22) is in the first position relative to the transmission portion (21), the roller (22) being disengageable relative to the transmission portion (21) when the roller (22) is in the second position relative to the transmission portion (21).

3. A floor brush assembly according to claim 2, characterized in that the roller brush (20) is rotatable with the first end about an axis relative to the body (10), the drum (22) being switchable between the first and the second position relative to the transmission (21) in a direction of rotation of the roller brush (20) about the axis.

4. A floor brush assembly according to claim 3, characterized in that in the axial direction of the roller brush (20), the transmission part (21) has a first surface arranged facing the drum (22), the drum (22) has a second surface arranged facing the body (10), one of the first and second surfaces is provided with a receptacle (23) and the other is provided with a first groove (24);

wherein, in the direction of rotation of the roller brush (20) around the axis, the accommodating part (23) is connected with a limiting part (25), one of the transmission part (21) and the roller (22) provided with the first groove (24) is provided with a second groove (26) communicated with the first groove (24), the limiting part (25) is limited in the second groove (26) at the first position, the accommodating part (23) is arranged in the first groove (24), and at the second position, the limiting part (25) and the accommodating part (23) are both arranged in the second groove (26).

5. A floor brush assembly according to claim 2, characterized in that the drum (22) comprises a drum body (221), a first end cover (222) and a second end cover (223), in the axial direction of the drum (22), the first end cover (222) is arranged at one end of the drum body (221) facing the transmission part (21), the second end cover (223) covers and closes the end of the drum body (221) facing away from the transmission part (21), and the drum (22) is in transmission connection with the transmission part (21) through the first end cover (222);

the first end cover (222) and the second end cover (223) are detachably connected with the cylinder body (221).

6. A floor brush assembly according to claim 5, characterized in that one of the cylinder body (221) and the first end cover (222) is convexly provided with a first positioning projection (224) extending along the axial direction, the other one is concavely provided with a first positioning groove extending along the axial direction, and the first end cover (222) is fittingly fixed with the first positioning projection (224) through the first positioning groove; and/or

One of the cylinder body (221) and the second end cover (223) is convexly provided with a second positioning bulge (226) extending along the axial direction, the other one of the cylinder body and the second end cover is concavely provided with a second positioning groove extending along the axial direction, and the second end cover (223) is matched and fixed with the second positioning groove through the second positioning bulge (226).

7. The floor brush assembly according to claim 1, characterized in that the body (10) comprises a housing (11) and a fixed shaft (12), one end of the fixed shaft (12) is fixedly connected with the housing (11), and the other end of the fixed shaft (12) is axially inserted into and supported in the rolling brush (20) along the rolling brush (20);

wherein the fixed shaft (12) penetrates through the rolling brush (20) and has a length greater than or equal to 1/2 of the length of the rolling brush (20).

8. A floor brush assembly according to any of claims 1-7, characterized in that the end surface of the second end of the roller brush (20) is arranged flush with or protruding from the outer surface of the body (10) in the axial direction of the roller brush (20).

9. A cleaning device comprising a floor brush assembly according to any of claims 1-8.

10. The cleaning apparatus of claim 9, wherein the cleaning apparatus is a scrubber.