CN218684158U - Floor brush assembly - Google Patents

Abstract

The utility model discloses a ground brush subassembly, including the casing to and roller brush chamber, drive arrangement, roller brush and the water supply subassembly of setting on the casing, the roller brush intracavity is located to the roller brush at least part, drive arrangement's output is connected with the roller brush transmission, the water supply subassembly is including setting up the water supply spare in the roller brush intracavity, the water supply spare sets up at the roller brush rear and towards the roller brush, the surface that the water supply spare is relative with the roller brush is first surface, first surface and roller brush interference fit. The utility model provides a ground brush subassembly can realize the water supply assembly automatically cleaning, need not the user and washs alone.

Description

Floor brush assembly

Technical Field

The utility model belongs to the technical field of the cleaning device accessory technique and specifically relates to a ground brush subassembly is related to.

Background

With the continuous development of cleaning devices, surface cleaning devices are widely used in people's lives, such as sweeping robots, hand-held cleaning devices. Cleaning devices with a floor-washing function are usually equipped with a floor brush assembly, which generally comprises a housing, a roller brush, a water supply assembly and a scraper blade, wherein the roller brush is wetted by the water supply assembly, the roller brush rotates relative to a surface to be cleaned to clean the surface, and the scraper blade can scrape off sewage on the roller brush. In the use process, dirty dirt can adhere to the water supply assembly, especially the water outlet, and the risk of water outlet blockage is caused when the water supply assembly is not cleaned for a long time. Therefore, when the floor brush is actually used, the user is required to frequently clean the water outlet position of the floor brush, the operation is complex, and the user experience is extremely poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome not enough among the prior art, provide a ground brush subassembly, can realize the water supply assembly automatically cleaning, need not the user and wash alone.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a ground brush subassembly, includes the casing to and set up roller brush chamber, drive arrangement, roller brush and the water supply subassembly on the casing, the roller brush intracavity is located to the roller brush at least part, drive arrangement's output and roller brush transmission are connected, the water supply subassembly is including setting up the water supply spare in the roller brush intracavity, the water supply spare sets up at the roller brush rear and towards the roller brush, the water supply spare has the first surface relative with the roller brush, first surface and roller brush interference fit.

In the technical scheme, the surface of the roller brush is coated with soft and water-absorbing bristles, the roller brush is in interference fit with the first surface, namely the bristles on the surface of the roller brush are in contact with the first surface, and the first surface can be scrubbed in the rotating process of the roller brush, so that dirt is prevented from being adhered, and a user does not need to separately clean the roller brush. And simultaneously, brush hair on the roller brush can absorb the cleaning solution that flows out on the water supply spare when the water supply spare, but in the axial of roller brush, the water yield of water supply spare can not be completely unanimous, can lead to the cleaning solution to distribute inhomogeneously on the brush hair, because first surface and roller brush interference fit, brush hair can be by interference fit's first surface extrusion, and the cleaning solution that makes the position that absorbs the cleaning solution many under the effect of the extrusion flows to the position that absorbs the cleaning solution few fast and makes the cleaning solution distribute more evenly on the roller brush surface.

Preferably, a scraping plate located below the water supply part is arranged on the shell, the scraping plate is in interference fit with the roller brush, and the interference magnitude between the scraping plate and the roller brush is larger than that between the first surface and the roller brush. The structure can prevent the bristles from being excessively extruded, so that the cleaning liquid is scraped by the first surface, and when the bristles leave the first surface, the bristles are internally provided with enough cleaning liquid.

Preferably, in the rotation direction of the roller brush, the interference between the first surface and the roller brush is gradually reduced. The roller brush can enable the bristles passing through the first surface to rebound slowly relatively, when the roller brush rotates to the tail end of the first surface, the compressed amount of the bristles is reduced, the roller brush continues to rotate, and when the bristles are separated from the first surface, the rebound amount of the bristles is reduced, so that the dirt thrown out of the bristles can be reduced, and the pollution of the dirt to the shell is reduced.

Preferably, the housing includes a stationary shell and a roller brush cover detachably attached to the stationary shell, the roller brush cover having a second surface opposite the roller brush, the second surface and the first surface together forming a portion of the roller brush chamber, wherein a gap is provided between the second surface and the roller brush. The roller brush cover cleaning structure is convenient to disassemble and clean, the whole roller brush cover can be disassembled and washed, the cleaning mode is more convenient and simpler, and the cleaning effect is better. The second surface can keep off mud in the top of roller brush, can set up the second surface smooth relatively, is difficult to produce clean dead angle, is convenient for clean.

Preferably, the second surface is smoothly and continuously arranged with the first surface and is in smooth transition connection with the first surface. The structure can enable the second surface and the first surface to be connected into a whole, gaps which are not easy to clean do not exist, and a user can clean conveniently.

Preferably, the second surface comprises a dirt collecting area and a transition area, the dirt collecting area is positioned between the first surface and the transition area, and the dirt collecting area is not smoothly connected with the transition area; the roller brush cover comprises a transparent part positioned on the front side and a shading part positioned on the rear side, the dirt collecting area is positioned on the shading part, and the transition area is positioned on the transparent part.

When the surface of the roller brush leaves the first surface, the bristles are suddenly changed into a loose state which is not compressed by the scraper, the bristles can rebound, and in addition, the bristles rotate along with the roller brush, part of dirt adsorbed in the bristles is thrown outwards and thrown to the dirt collecting area, after the bristles on the roller brush leave the position corresponding to the dirt collecting area, the bristles are already in the loose state, and the dirt in the bristles is thrown into the dirt collecting area at the position corresponding to the dirt collecting area, so that the dirt in the bristles is not easily thrown out in the transition area, and the relative cleanness of other areas except the dirt collecting area is kept. Dirty district of collection and transition district non-smooth connection, non-smooth connection structure has and blocks isolation, and the filth that throws away along roller brush surface tangential direction can be blocked by non-smooth connection structure, is difficult to get into the transition district, piles up on non-smooth connection knot, and the user only need when clean focus dirty district and non-smooth connection position can, reduced the clean position of need focus, practiced thrift clean time. When needing to be cleaned, only need pull down detachable roller brush lid from scrubbing brush subassembly and wash and can accomplish the cleanness to the dirty district of collection, and the user only need when clean focus dirty position of collection can, reduced the clear position of needs key, practiced thrift clean time. The shading part is located the rear side, and the user is in the rear side of scrubbing brush subassembly when using surface cleaning device, and the dirty district of collection can be blocked by the shading part, can make the roller brush lid look cleaner and tidier, avoids the dirty district of collection directly to expose in the user's eyes, influences user's mood. The transparent part can facilitate a user to observe the cleanliness of the dirt collecting area from the front side, so that the user can conveniently detach and clean the roller brush cover according to the cleanliness of the dirt collecting area.

Preferably, the dirt collecting region is located on the rear side of a vertical plane passing through a central axis of the roller brush. When the roller brush rotated, the direction of motion of the brush hair that is located the vertical planar rear side position of roller brush center pin on the roller brush had ascending tangential speed, can get rid of the dirty district of collection with the filth, and the water supply spare is located the roller brush rear side, and the brush hair just leaves the water supply spare and is the filth of throwing away at most, the structure can be guaranteed that most filths all get rid of the dirty district of collection.

Preferably, a partition plate extending towards the direction of the roller brush is arranged between the dirt collecting area and the transition area. The dirty district of collection can be separated with the transition region to the structure, guarantees that most filths all are located the dirty district of collection, is convenient for clean.

Preferably, the average distance between the dirt collecting area and the roller brush is smaller than the average distance between the transition area and the roller brush. The closer the distance, the easier the dirt is thrown, and the structure can increase the dirt collecting capacity of the dirt collecting area and reduce the dirt thrown to the transition area.

Preferably, a water pressing strip is arranged at the upper end of the first surface along the axial direction of the roller brush, the water pressing strip is in interference fit with the roller brush, and the interference magnitude between the water pressing strip and the roller brush is larger than that between the first surface and the roller brush. The brush hair on the roller brush is earlier through the water supply spare again through the pressure water strip, the brush hair is when the water supply spare of process, can absorb the cleaning solution that flows on the water supply spare, but in the axial of roller brush, the water yield of water supply spare can not be completely unanimous, can lead to the cleaning solution to distribute inhomogeneously on the brush hair, when the brush hair of inhomogeneous absorption cleaning solution is through the pressure water strip, can be extruded once more by interference fit's pressure water strip, the cleaning solution that makes the position that absorbs the cleaning solution many flows to the position that absorbs the cleaning solution few fast under the effect of extrusion makes the cleaning solution distribute more evenly on the roller brush surface.

Drawings

FIG. 1 is a schematic view of a surface cleaning apparatus according to the present invention;

FIG. 2 is a schematic structural view of a floor brush assembly according to the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of a partial structure of a floor brush assembly according to the present invention;

fig. 5 is a first schematic structural view of the water supply part of the present invention;

fig. 6 is a schematic structural view of the water supply member of the present invention.

In the figure: the device comprises a shell 1, a fixed shell 1.1, a roller brush cover 1.2, a transparent part 1.2.1, a shading part 1.2.2, a dirt collecting area 1.2.3, a transition area 1.2.4, a second surface 1.3, a partition plate 1.4, a roller brush cavity 2, a roller brush 3, a water supply part 4, a first surface 4.1, a water pressing strip 4.2, a water outlet 4.3, a water guide groove 4.4, a scraper 5, a driving device 11, a water supply component 12, a dirt absorbing component 13, a machine body 100, a power source component 200, a liquid storage tank 300, a dirt barrel 400 and a ground brush component 500.

Detailed Description

The invention is further described with reference to the accompanying drawings and specific embodiments.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and thus should not be construed as limiting the invention.

It should be noted that the floor brush assembly of the embodiment of the present invention is suitable for a surface cleaning device, and the surface cleaning device may be a dry type dust collector, and may also be a floor cleaning/mopping device with both dry and wet functions. In particular, the surface cleaning apparatus may be a hand-held cleaning machine with a wand and which is manually operated by a user, such as a hand-held floor washing machine, a hand-held floor scrubbing machine, a hand-held cleaner or the like; it is also possible to have a cleaning robot with driving wheels, which can control the driving wheels to travel according to a program stored in the cleaning robot itself and control the cleaning roller to clean the floor. The invention will now be further described with reference to the drawings and specific examples of a hand-held surface cleaning device.

As shown in fig. 1 and 2, the embodiment of the present invention provides a surface cleaning device, which includes a body 100, a power source assembly 200, a liquid storage tank 300 detachably mounted on the body, a dirt barrel 400, and a floor brush assembly 500 pivotally connected to the bottom end of the body 100, wherein the floor brush assembly 500 includes a housing 1, and a roller brush cavity 2, a driving device 11, a roller brush 3, a water supply assembly 12, a scraper 5, and a dirt suction assembly 13 disposed on the housing 1, the roller brush 3 is at least partially disposed in the roller brush cavity 2, bristles for cleaning a surface to be cleaned are disposed on the outer surface of the roller brush 3, the water supply assembly includes a water supply member 4 disposed in the roller brush cavity 2, the water supply member 4 is disposed behind the roller brush 3 and faces the roller brush 3, the scraper 5 is disposed below the water supply member 4 and in interference fit with the roller brush 3, the dirt suction assembly 13 is disposed below the scraper 5, and an output end of the driving device is in transmission connection with the roller brush 3 to drive the bristles on the roller brush 3 to contact with the surface to be cleaned. The front, back, left, right, up and down positions in the present invention refer to the mark in fig. 1.

Example 1:

as shown in fig. 2 and 3, a floor brush assembly comprises a housing 1, a roller brush cavity 2, a driving device 11, a roller brush 3 and a water supply assembly 12, wherein the roller brush 3 is at least partially arranged in the roller brush cavity 2, the output end of the driving device 11 is in transmission connection with the roller brush 3, the water supply assembly 12 comprises a water supply part 4 arranged in the roller brush cavity 2, the water supply part 4 is arranged behind the roller brush 3 and faces the roller brush 3, the water supply part 4 is provided with a first surface 4.1 opposite to the roller brush 3, and the first surface 4.1 is in interference fit with the roller brush 3.

In the technical scheme, the surface of the roller brush 3 is coated with soft and water-absorbing bristles, the roller brush 3 is in interference fit with the first surface 4.1, namely, the bristles on the surface of the roller brush 3 are in contact with the first surface 4.1, and the first surface 4.1 can be brushed in the rotation process of the roller brush 3, so that dirt is prevented from being adhered, and a user does not need to separately clean the roller brush. Simultaneously, brush hair on the roller brush 3 can absorb the cleaning solution that flows out on the water supply piece 4 when the water supply piece 4, but in the axial of roller brush 3, the water yield of water supply piece 4 can not be completely unanimous, can lead to the cleaning solution to distribute inhomogeneously on the brush hair, because first surface 4.1 and roller brush 3 interference fit, the brush hair can be extruded by interference fit's first surface 4.1, makes the cleaning solution that absorbs the position that the cleaning solution is many flow to fast and absorbs the position that the cleaning solution is few under the effect of extrusion and makes the cleaning solution distribute 3 surfaces of roller brush more evenly.

Preferably, as shown in fig. 3, a scraper 5 is disposed on the housing 1 below the water supply member 4, the scraper 5 is in interference fit with the roller brush 3, and an interference between the scraper 5 and the roller brush 3 is greater than an interference between the first surface 4.1 and the roller brush 3. The interference between the first surface 4.1 and the roller brush 3 is not more than 5mm, and the interference between the scraper 5 and the roller brush 3 is not more than 5mm. The scraper 5 is fixed with the shell 1 or the water supply part 4 through a fastener or integrally formed, and the water supply part 4 is fixed with the shell 1. When the roller brush 3 works, the roller brush rotates from one side of the scraper 5 to one side of the mudguard 6, and most of dirt in the bristles can be scraped by the scraper 5 and sucked into the dirt barrel through the dirt sucking assembly due to the interference fit between the scraper 5 and the roller brush 3. The interference magnitude of the first surface 4.1 and the roller brush 3 is smaller than the interference magnitude of the scraper 5 and the roller brush 3, so that the bristles are prevented from being excessively extruded, the cleaning solution is scraped by the first surface 4.1, and when the bristles leave the first surface 4.1, the bristles are provided with enough cleaning solution.

In one embodiment, as shown in fig. 3, in the rotation direction of the roller brush 3, the interference between the first surface 4.1 and the roller brush 3 is gradually reduced, so that the bristles passing through the first surface 4.1 rebound relatively slowly, when the roller brush 3 rotates to the end of the first surface 4.1, the compressed amount of the bristles is reduced, the roller brush 3 continues to rotate, and when the bristles separate from the first surface 4.1, the rebound amount of the bristles is reduced, so that the dirt thrown out of the bristles can be reduced, and the pollution of the dirt to the housing 1 can be reduced.

In another embodiment, as shown in fig. 3, a water pressing strip 4.2 is arranged at the upper end of the first surface 4.1 along the axial direction of the roller brush 3, the water pressing strip 4.2 is in interference fit with the roller brush 3, and the interference between the water pressing strip 4.2 and the roller brush 3 is larger than that between the first surface 4.1 and the roller brush 3. Brush hair on the roller brush 3 is earlier through water supply spare 4 again through pressing water strip 4.2, the brush hair is when through water supply spare 4, can absorb the cleaning solution that flows on the water supply spare 4, but in the axial of roller brush 3, the water yield of water supply spare 4 can not be completely unanimous, can lead to the cleaning solution to distribute unevenly on the brush hair, when the brush hair of inhomogeneous absorption cleaning solution is through pressing water strip 4.2, can be squeezed once more by interference fit's pressing water strip 4.2, make the cleaning solution that absorbs the position that the cleaning solution is many flow into fast and absorb the position that the cleaning solution is few under the effect of squeezing force and make the cleaning solution distribute 3 surfaces more evenly.

Preferably, as shown in fig. 5, the first surface 4.1 is provided with a concave bell-mouth-shaped water outlet 4.3. The structure can make the cleaning liquid more uniformly distributed on the brush hair.

In one embodiment, a plurality of water outlets 4.3 are arranged on the first surface 4.1, and the plurality of water outlets 4.3 are arranged along the axial direction of the roller brush. The structure can make the cleaning liquid more uniformly distributed on the brush hair.

In another embodiment, as shown in fig. 6, the first surface 4.1 is provided with a water chute 4.4 arranged along the axial direction of the roller brush 3, and the bottom of the water chute is provided with a plurality of water outlets 4.3 arranged along the axial direction of the roller brush. A complete guiding gutter can reduce the processing degree of difficulty, and the cleaning solution of the delivery port of position about can supply each other, makes the cleaning solution distribute more evenly on the brush hair. The bottom surface and the side wall of the water chute are of a complete arc shape, so that the dirt accumulation at the transition position is avoided.

Example 2:

as shown in fig. 2, the housing 1 comprises a fixed shell 1.1 and a roller brush cover 1.2 detachably connected to the fixed shell 1.1, the roller brush cover 1.2 has a second surface 1.3 opposite to the roller brush 3, the second surface 1.3 and the first surface 4.1 together form a part of the roller brush cavity 2, wherein a gap is provided between the second surface 1.3 and the roller brush 3. The structure is convenient for demolish the cleanness to roller brush lid 1.2, can wash the whole dismantlement of roller brush lid 1.2, and the clean mode is more convenient simple, and clean effect is better. The second surface 1.3 can keep off mud in the top of roller brush 3, can set up second surface 1.3 relatively smooth, is difficult to produce clean dead angle, is convenient for clean.

In one embodiment, as shown in fig. 4, the second surface 1.3 is smoothly continuous with the first surface 4.1 and is in smooth transition connection. The structure can enable the second surface 1.3 and the first surface 4.1 to be connected into a whole, gaps which are not easy to clean do not exist, and cleaning is convenient for a user.

In another embodiment, as shown in fig. 2 and 3, the second surface 1.3 comprises a dirt collection region 1.2.3 and a transition region 1.2.4, the dirt collection region 1.2.3 is located between the first surface 4.1 and the transition region 1.2.4, and the dirt collection region 1.2.3 is not smoothly connected with the transition region; the roller brush cover 1.2 comprises a transparent part 1.2.1 positioned on the front side and a shading part 1.2.2 positioned on the rear side, the dirt collecting area 1.2.3 is positioned on the shading part 1.2.2, and the transition area 1.2.4 is positioned on the transparent part 1.2.1.

When the surface of the roller brush 3 leaves the first surface 4.1, the bristles are suddenly changed from a state of being pressed by the scraper 5 to a loose state of not being pressed, the bristles rebound, in addition, the bristles rotate along with the roller brush 3, part of dirt adsorbed in the bristles is thrown outwards and thrown to the dirt collecting area 1.2.3, after the bristles on the roller brush 3 leave the position corresponding to the dirt collecting area 1.2.3, the bristles are already in the loose state, and the dirt in the bristles is thrown into the dirt collecting area 1.2.3 at the position corresponding to the dirt collecting area 1.2.3, so that the dirt in the bristles is not easily thrown out in a transition area, and the relative cleanness of other areas except the dirt collecting area 1.2.3 is kept. The dirt collecting area 1.2.3 is connected with the transition area 1.2.4 in a non-smooth mode, namely the dirt collecting area is in non-smooth transition at the joint of the surface of the roller brush facing the roller brush and the surface of the transition area facing the roller brush, steps and/or sharp corners and other structures are arranged at the joint, the curvature of the two surfaces at the joint suddenly changes, for example, the joint of the dirt collecting area 1.2.3 and the transition area 1.2.4 is connected with each other in a non-smooth mode through the steps, and the height sudden changes of the two areas are divided into two relatively independent areas. When needing to clean, only need pull down detachable roller brush lid 1.2 from scrubbing brush subassembly 500 and wash and can accomplish the cleanness to dirty district 1.2.3 of collection, and the user only need when clean focus dirty district 1.2.3 position can, reduced the position that needs key cleanness, practiced thrift clean time. Shading portion 1.2.2 is located the rear side, and the user is in the rear side of scrubbing brush subassembly when using surface cleaning device, and dirty district 1.2.3 that gathers can be blocked by shading portion 1.2.2, can make roller brush lid 1.2 look cleaner and tidier, avoids dirty district 1.2.3 that gathers to directly expose in front of the user, influences user's mood. The transparent part 1.2.1 can facilitate the user to observe the cleanliness of the dirt collecting area 1.2.3 from the front side, so that the user can disassemble and clean the roll brush cover 1.2 according to the cleanliness of the dirt collecting area 1.2.3. The transparent part 1.2.1 is made of a transparent material. The shading part 1.2.2 can be made of opaque materials and is not light-tight; the body part of the shading part 1.2.2 can also be made of transparent materials, an opaque part or an opaque sticker or an opaque coating and other objects are arranged between the body part and the machine body, the shading part 1.2.2 is just blocked, and when the shading part is used by a user, the sight of the user is just blocked by the opaque objects. The transparent part 1.2.1 and the shading part 1.2.2 can be an integral molding structure or a detachable and separated structure.

Preferably, said dirt collection area 1.2.3 is located on the rear side of a vertical plane passing through the central axis of the roller brush 3, as shown in fig. 2 and 3. When 3 rotations of roller brush, the direction of motion of the brush hair that lies in the vertical plane rear side position of 3 center pins of roller brush on 3 roller brushes has ascending tangential speed, can get rid of the dirty district 1.2.3 of collection with the filth, and water supply part 4 is located 3 rear sides of roller brush, and the brush hair just leaves water supply part 4 and is the filth of throwing away most, the structure can guarantee that most filths all get rid of dirty district 1.2.3 of collection.

Preferably, as shown in fig. 2, a partition plate 1.4 extending in the direction of the roller brush 3 is arranged between the dirt collecting area 1.2.3 and the transition area 1.2.4. The structure can separate dirty district 1.2.3 of collection and transition region 1.2.4, guarantees that most filths all are located dirty district 1.2.3 of collection, the cleanness of being convenient for.

Preferably, as shown in fig. 2, the average distance between the dirt collection area 1.2.3 and the roller brush 3 is smaller than the average distance between the transition area 1.2.4 and the roller brush 3. The distance from any point on the dirt collecting area 1.2.3 to the surface of the roller brush 3 is as follows: the distance from any point on the dirt collecting area 1.2.3 to the axis of the roller brush 3 is subtracted by the radius of the roller brush 3. The average distance between the dirt collecting area 1.2.3 and the roller brush 3 is the average value of the distances between all the points on the dirt collecting area 1.2.3 and the roller brush 3. The distance from any point on the transition region 1.2.4 to the surface of the roller brush 3 is as follows: the distance from any point in the transition region 1.2.4 to the axis of the roller brush 3 minus the radius of the roller brush 3. The average distance between the transition region 1.2.4 and the roller brush 3 is the average of the distances between all points on the transition region 1.2.4 and the roller brush 3. The closer the distance, the easier the dirt is thrown to, the structure can increase the dirt collecting capacity of the dirt collecting area 1.2.3, and the dirt thrown to the transition area is reduced.

Claims (10)

1. The utility model provides a ground brush subassembly, includes the casing to and set up roller brush chamber, drive arrangement, roller brush and the water supply subassembly on the casing, the roller brush intracavity is located to the roller brush at least part, drive arrangement's output and roller brush transmission are connected, the water supply subassembly is including setting up the water supply spare in the roller brush intracavity, characterized by, the water supply spare sets up at the roller brush rear and towards the roller brush, the water supply spare has the first surface relative with the roller brush, first surface and roller brush interference fit.

2. A floor brush assembly according to claim 1, wherein the housing is provided with a scraper below the water supply, the scraper is in interference fit with the roller brush, and the interference between the scraper and the roller brush is greater than the interference between the first surface and the roller brush.

3. A floor brush assembly according to claim 1, wherein the interference of the first surface with the roller brush is progressively reduced in the direction of rotation of the roller brush.

4. A floor brush assembly according to claim 1, wherein the housing comprises a stationary housing and a roller brush cover removably attached to the stationary housing, the roller brush cover having a second surface opposite the roller brush, the second surface and the first surface together forming a portion of the roller brush chamber, wherein a gap is provided between the second surface and the roller brush.

5. A floor brush assembly according to claim 4, wherein the second surface is smoothly continuous with and smoothly transitionally connected to the first surface.

6. A floor brush assembly according to claim 4, wherein the second surface comprises a dirt collection region and a transition region, the dirt collection region being located between the first surface and the transition region, the dirt collection region and the transition region being non-smoothly connected; the roller brush cover comprises a transparent part positioned on the front side and a shading part positioned on the rear side, the dirt collecting area is positioned on the shading part, and the transition area is positioned on the transparent part.

7. A floor brush assembly according to claim 6, wherein the dirt collection region is located to the rear of a vertical plane passing through the central axis of the roller brush.

8. A floor brush assembly as claimed in claim 6, wherein a partition plate is provided between the dirt collection region and the transition region, the partition plate extending in the direction of the roller brush.

9. A floor brush assembly as claimed in claim 6, wherein the average distance between the dirt collection region and the roller brush is less than the average distance between the transition region and the roller brush.

10. The floor brush assembly according to claim 6, wherein the upper end of the first surface is provided with a water pressing strip along the axial direction of the roller brush, the water pressing strip is in interference fit with the roller brush, and the interference between the water pressing strip and the roller brush is larger than that between the first surface and the roller brush.

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