CN218684157U - Scrubbing brush assembly of surface cleaning device - Google Patents

Abstract

The utility model discloses a scrubbing brush subassembly of surface cleaning device, including having the casing in roller brush chamber, be equipped with roller brush, water supply spare and scraper blade in the roller brush chamber, be equipped with the delivery port that provides the cleaning solution to the roller brush on the water supply spare, the scraper blade locate the below of water supply spare and with roller brush interference fit, the water supply spare with be equipped with the dirt board between the roller brush, the dirt board is located the top of scraper blade, and the bottom of dirt board is located the within range of scraper blade in the ascending projection of vertical side to make the filth on the roller brush get rid of the front side to the dirt board. The utility model discloses an add between water supply spare and roller brush and keep off dirty board, make the filth concentrate on the front end of easy clear fender dirty board, convenience of customers is clean.

Description

Scrubbing brush assembly of surface cleaning device

Technical Field

The utility model belongs to the technical field of the cleaning device accessory technique and specifically relates to a scrubbing brush subassembly of surface cleaning device 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 using process, dirty dirt is easy to adhere to the inner side of the shell, particularly the vicinity of the water supply assembly, and the shell is not easy to clean, particularly the connecting gap of each part in the water supply assembly or the connecting gap between the water supply assembly and the shell or other parts is difficult to clean once the dirty dirt is adhered. When the surface cleaning equipment is actually used, the user is required to frequently clean the floor brush assembly, the cleaning difficulty is high, the operation is complex, and the user experience is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome not enough among the prior art, provide a surface cleaning device's scrubbing brush subassembly, through add the dirty board of fender between water supply spare and roller brush, make the filth concentrate on the front end of the dirty board of easy clear fender, convenience of customers is clean.

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

the utility model provides a scrubbing brush subassembly of surface cleaning device, is including having the casing in roller brush chamber, the roller brush intracavity is equipped with roller brush, water supply spare and scraper blade, be equipped with the delivery port that provides the cleaning solution to the roller brush on the water supply spare, the scraper blade locate the below of water supply spare and with roller brush interference fit, the water supply spare with be equipped with the dirt board between the roller brush, the dirt board is located the top of scraper blade, and the bottom of dirt board is located the within range of scraper blade in the ascending projection of vertical side to make the filth on the roller brush get rid of the front side to the dirt board.

Among the above-mentioned technical scheme, the surface cladding of roller brush has the brush hair of soft and absorbing water, the roller brush during operation is rotated to dirt board one side by scraper blade one side, because scraper blade and roller brush interference fit, most filth in the brush hair can be scraped and inhale the filth bucket through the dirt absorbing assembly, a small amount of filth that is not scraped by the scraper blade can be stayed on the roller brush surface, when the roller brush surface leaves the scraper blade, the brush hair is by being strikeed the relaxation state that is not compressed tightly by scraper blade compact state, the brush hair can produce the resilience, in addition brush hair itself rotates along with the roller brush, the filth that adsorbs in the brush hair has partly outwards to be thrown away, get rid of the position of dirt board front end, can not get into the position that is blocked by dirt board, also can not throw away the position that the water supply spare was blocked, simultaneously, because the bottom of dirt board is located the within range of scraper blade in the projection of vertical direction, when the brush hair after being extrudeed from the scraper blade rotates out, the brush hair can be in the front end of dirt board that can be in the baffle, and can get into through the dirt board rear end that can get into behind the dirt board that can get into, can get into through the dirt board that can get into.

Preferably, a water passing gap is arranged between the bottom end of the dirt baffle and the scraper and/or the water supply piece. The water gap can ensure that the cleaning liquid provided by the water supply part can flow to the surface of the roller brush through the water gap.

Preferably, the distance between the bottom end of the dirt baffle and the scraper is not more than 3mm. The distance between the bottom end of the dirt blocking plate and the scraping strip is not too large, and the dirt on the surface of the roller brush is prevented from entering the rear end of the dirt blocking plate through the gap by the too large distance.

Preferably, the bottom end of the dirt blocking plate is in contact with the scraping plate or the water supply part, and the bottom end of the dirt blocking plate is provided with a water passing groove for enabling cleaning liquid flowing out of the water supply part to enter one side of the roller brush. The bottom and the scraper blade of keeping off dirty board or the contact of water supply spare only are equipped with the basin in the bottom of keeping off dirty board, can avoid the filth to get into the board rear end that keeps off dirty through the clearance of keeping off dirty board bottom, it has the cleaning solution to flow out to cross the basin, both can make and cross the water tank and keep clean, also can avoid the filth to get into the board rear end that keeps off dirty through crossing the water tank.

Preferably, the dirt deflector is provided with a forwardly extending extension which is disposed above the roller brush. The extension portion can keep off mud in the top of roller brush, can set up relatively smooth surface at the extension, and is more smooth for the casing internal surface, is difficult to produce clean dead angle, is convenient for clean.

Preferably, the extending part is in interference fit with the roller brush, and the interference between the extending part and the roller brush is gradually reduced in the rotating direction of the roller brush; or the front end of the extension part is in interference fit with the roller brush, and the rest positions of the extension part are in clearance fit with the roller brush.

In the technical scheme, the extension part is in interference fit with the roller brush, so that the bristles on the surface of the roller brush can be always in contact with the extension part, the surface of the extension part can be scrubbed in the rotation process of the roller brush, dirt is prevented from being adhered, and a user does not need to separately clean the extension part. And simultaneously, the brush hair on the roller brush is earlier through the water supply piece again through the extension, the brush hair is when through the water supply piece, can absorb the cleaning solution that flows on the water supply piece, but in the axial of roller brush, the water yield of water supply piece 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 extension, can be extruded by interference fit's extension, the cleaning solution that makes the position that absorbs the cleaning solution many flows to fast and absorbs the position that the cleaning solution is few under the effect of extrusion makes the roller brush surface in the more even distribution of cleaning solution. The interference magnitude of the extension part and the roller brush is gradually reduced, so that the bristles passing through the extension part can rebound relatively slowly, when the roller brush rotates to the tail end of the extension part, the compressed amount of the bristles is reduced, the roller brush continues to rotate, and when the bristles are separated from the extension part, 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. The interference magnitude of the extension part and the roller brush is smaller than that of the scraping plate and the roller brush, so that the bristles are prevented from being excessively extruded, the cleaning solution is scraped by the extension part, and when the bristles leave the extension part, the bristles are provided with enough cleaning solution. The front end and the roller brush interference fit of extension can extrude the brush hair when the brush hair of inhomogeneous absorption cleaning solution passes through the front end of extension, make the cleaning solution that absorbs the position that the cleaning solution is many flow to fast absorb the position that the cleaning solution is few under the effect of extrusion force and roll the surface on the more even distribution of cleaning solution.

Preferably, the shell comprises a fixed shell and a roller brush cover, the fixed shell and the roller brush cover form a roller brush cavity together, the roller brush cover is detachably connected with the fixed shell, and the dirt blocking plate is arranged on the roller brush cover. The roller brush cover cleaning device is convenient to disassemble and clean the roller brush cover, can wash the whole roller brush cover, and is more convenient and simpler in cleaning mode and better in cleaning effect.

Preferably, the front end of the extension part is fixed with the roller brush cover, and the front end of the extension part and the roller brush cover form a continuous and smooth curved surface. The structure can make the front end of extension and the roller brush lid be difficult to appear the dead angle of hiding dirty dirt, be convenient for clean the hookup location between them.

Preferably, the roller brush cover includes a transparent portion located at a front side and a light shielding portion located at a rear side, a dirt collecting region is provided between the transparent portion and the dirt blocking plate, and the dirt collecting region is located at the light shielding portion. 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 roller brush cover comprises a dirt collecting area and a transition area, the dirt collecting area is located on the front side of the dirt blocking plate, the transition area is located on the front side of the dirt collecting area, and the dirt collecting area is not smoothly connected with the transition area. Dirty district of collection is close to the scraper blade more and keeps off dirty board, and the dirty district of collection can be concentrated in the most filths of throwing away on the roller brush, non-smooth connection structure has and blocks isolation, and the filth of throwing away along roller brush surface tangential direction can be blocked by non-smooth connection structure, is difficult to get into the transition district, ties up at non-smooth connection, and the user only need focus clean dirty district of collection and non-smooth connection position when clean can, reduced need key clear position, practiced thrift clean time.

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 partial structural diagram of the first embodiment of the present invention;

fig. 5 is a schematic view of a partial structure of the present invention;

fig. 6 is a schematic view of a partial structure of the present invention;

FIG. 7 is a schematic structural view of a brush cover of the roller of the present invention;

fig. 8 is a schematic view of a partial structure of the present invention;

fig. 9 is a schematic view of a partial structure of the present invention;

fig. 10 is a schematic view six of a partial structure of the present invention;

fig. 11 is a schematic view seven of a partial structure 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 mud blocking part 1.2.6, a mounting part 1.2.7, a step 1.2.8, a roller brush cavity 2, a roller brush 3, a water supply part 4, a scraper 5, a mud blocking plate 6, a water passing groove 6.1, an extension part 6.2, a water passing gap 8, ribs 9, a covered edge 10, a driving device 11, a water supply component 12, a sewage suction component 13, a machine body 100, a power source component 200, a liquid storage tank 300, a sewage barrel 400 and a floor 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 manually operated by a user, such as a hand-held floor washer, hand-held floor scrubber, hand-held vacuum 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, 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, at least a portion of the roller brush 3 is disposed in the roller brush cavity 2, bristles for cleaning a surface to be cleaned are disposed on an outer surface of the roller brush 3, an output end of the driving device is in transmission connection with 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 is disposed below the scraper 5, and the roller brush 3 is connected with a driving motor to drive the bristles on the roller brush 3 and 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. The lower housing of the floor brush assembly and the drive means 11 are shown in figure 2. The dirt barrier 6 in fig. 5, 6, 8, 9 and 10 is shown in cross section for convenience of illustration.

Example 1:

as shown in fig. 2 and 3, a ground brush subassembly, including having casing 1 of roller brush chamber 2, be equipped with roller brush 3, water supply 4 and scraper blade 5 in the roller brush chamber 2, be equipped with the delivery port that provides the cleaning solution to roller brush 3 on the water supply 4, scraper blade 5 locate the below of water supply 4 and with 3 interference fit of roller brush, water supply 4 with be equipped with dirt blocking plate 6 between the roller brush 3, dirt blocking plate 6 is located the top of scraper blade 5, and the bottom of dirt blocking plate 6 is located the within range of scraper blade 5 in the ascending projection of vertical side to make the filth on the roller brush 3 throw the front side to dirt blocking plate 6.

Among the above-mentioned technical scheme, the surface cladding of roller brush 3 has the brush hair of softness and absorbing water, 3 during operations of roller brush are rotated to 6 one sides of dirt board by 5 one sides of scraper blade, because scraper blade 5 and 3 interference fit of roller brush, most filths in the brush hair can be scraped and inhale the filth bucket through the dirt absorbing assembly by scraper blade 5, a small amount of filths that are not scraped by scraper blade 5 can be stayed 3 surfaces of roller brush, when 3 surfaces of roller brush leave scraper blade 5, the brush hair is by being the relaxation state that is not compressed tightly by scraper blade 5 pressing state sudden change, the brush hair can produce the resilience, in addition brush hair itself rotates along with roller brush 3, the filths that adsorb in the brush hair have partly outwards to be thrown away, get rid of the position of 6 front ends of dirt board, can not get into the position of dirt board 6, also can not get rid of the position that water supply 4 was blocked, and simultaneously, because the bottom of dirt board 6 can not get into the dirt board 6 in the projection of vertical direction in the range of scraper blade 5, when the brush hair of the extrusion back of the brush hair of scraper blade 5 can be in the dirt board, the dirt board can get into the dirt board, consequently, the dirt board can get into the dirt board 6 baffle 6 can get into the dirt board after the dirt board, the effect of dirt board can get into, the dirt board can get into through the dirt board behind the dirt board 6 baffle. The vertical direction is the up-down direction in the figure. The scraper 5 is fixed with the shell 1 or the water supply part 4 through a fastener or integrally formed. The dirt baffle 6 and the water supply part 4 are fixed with the shell.

In one embodiment, the front end face of the dirt blocking plate 6 is a non-smooth face, that is, the front end face of the dirt blocking plate 6 is provided with various structures capable of increasing adsorption capacity, so that solid matters in dirt or dirt can be adsorbed on the non-smooth face, the dirt falling back to the surface of the roller brush 3 is reduced, the surface of the roller brush 3 is cleaner, and a better cleaning effect is achieved. The structure capable of increasing the dirt absorbing capacity can be projections and grooves in various shapes and patterns, and can also increase the roughness of a non-smooth surface. As shown in fig. 2, the front end of the dirt blocking plate 6 is provided with a plurality of ribs 9 arranged at intervals along the axial direction of the roller brush, so that the dirt collecting surface area of the front end of the dirt blocking plate 6 can be increased, and the structural strength of the dirt blocking plate 6 can be increased. As shown in fig. 7, the axial length of dirt blocking plate 6 is greater than the axial length of roller brush 3, and both ends extend to roller brush 3 one side and form bordure 10 about dirt blocking plate 6, and the top surface of borduring 10 is the cambered surface, and the diameter of this cambered surface is less than the external diameter of roller brush 3, and roller brush 3 is located about two of both ends and bordures between 10, and dirt blocking plate 6 and bordure 10 form half-enclosure structure to roller brush 3, can cover whole roller brush 3 on the axial, and the dirty filth of roller brush 3 side also is collected, has better fender mud effect.

In one embodiment, as shown in fig. 4, a water passing gap 8 is formed between the bottom end of the dirt baffle 6 and the scraper 5, and the water passing gap 8 between the bottom end of the dirt baffle 6 and the scraper 5 is not more than 3mm. The water gap 8 may be 1mm, 2mm, 3mm, etc. The water passing gap 8 enables the bottom end of the dirt baffle 6 and the scraping plate 5 to keep equal distance in the axial direction of the roller brush 3, and the water passing gap 8 can ensure that the cleaning solution provided by the water supply part 4 can flow to the surface of the roller brush 3 through the water passing gap 8. The water passing gap 8 between the bottom end of the dirt blocking plate 6 and the scraper 5 is not too large, so that the too large water passing gap 8 is avoided, and dirt on the surface of the roller brush 3 enters the rear end of the dirt blocking plate 6 through the water passing gap 8. The direction E in fig. 4 is the flow direction of the cleaning liquid.

In another embodiment, as shown in fig. 3, a water passing gap 8 is provided between the bottom end of the dirt baffle 6 and the water supply member 4. The distance between the bottom end of the dirt blocking plate 6 and the scraping strip is not more than 3mm. The distance may be 1mm, 2mm, 3mm, etc. The water passing gap 8 enables the bottom end of the dirt baffle 6 and the water supply part 4 to keep equal distance in the axial direction of the roller brush 3, and the water passing gap 8 can ensure that cleaning liquid provided by the water supply part 4 can flow to the surface of the roller brush 3 through the water passing gap 8. Scraper blade 5 is located 4 below of water supply, be equipped with between the bottom of fender dirty board 6 and the water supply 4 and cross water clearance 8, then there is the clearance between the bottom of fender dirty board 6 and the scraping strip, the distance between the bottom of fender dirty board 6 and the scraping strip should not be too big, avoids too big distance to make the filth on roller brush 3 surfaces get into 6 rear ends of fender dirty board through the clearance.

In another embodiment, as shown in fig. 5 and 6, the bottom end of the dirt blocking plate 6 is in contact with the scraping plate 5 or the water supply member 4, and the bottom end of the dirt blocking plate 6 is provided with a water passing groove 6.1 for allowing the cleaning liquid flowing out from the water supply member 4 to enter one side of the roller brush 3. The bottom of keeping off dirty board 6 has not set up the position of basin 6.1 and scraper blade 5 or the contact of water supply 4, only is equipped with a plurality of at the bottom interval of keeping off dirty board 6 and crosses water tank 6.1, cross delivery port one-to-one on basin 6.1 and the water supply 4, can avoid the filth to get into through the clearance that keeps off dirty board 6 bottom and keep off dirty board 6 rear end, it has the cleaning solution to flow to cross basin 6.1, both can make and cross basin 6.1 and keep clean, also can avoid the filth to get into through basin 6.1 and keep off dirty board 6 rear end. The direction E in fig. 5 and 6 is the flow direction of the cleaning liquid.

Example 2:

as shown in fig. 8, 9, 10 and 11, on the basis of embodiment 1, the dirt blocking plate 6 is provided with an extension part 6.2 extending forward, and the extension part 6.2 is arranged above the roller brush 3. The extension part 6.2 can block mud above the roller brush 3, and the extension part 6.2 can be provided with a relatively smooth surface, so that the extension part is smoother relative to the inner surface of the shell 1, is not easy to generate a cleaning dead angle, and is convenient to clean.

In one embodiment, as shown in fig. 8 and 9, the extension portion 6.2 is in interference fit with the roller brush 3, and the interference between the extension portion 6.2 and the roller brush 3 is gradually reduced in the rotation direction of the roller brush 3. The extension part 6.2 is in interference fit with the roller brush 3, so that bristles on the surface of the roller brush 3 can be always in contact with the extension part 6.2, the surface of the extension part 6.2 can be brushed in the rotation process of the roller brush 3, dirt is prevented from being adhered, and a user does not need to separately clean the roller brush. Simultaneously, the brush hair on the roller brush 3 is earlier through supplying water spare 4 again through extension 6.2, the brush hair is when supplying water spare 4, can absorb the cleaning solution that flows on supplying water spare 4, but in the axial of roller brush 3, the water yield of supplying water 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 passes through extension 6.2, can be extruded by interference fit's extension 6.2, make the cleaning solution that absorbs the position that the cleaning solution is many flow to the position that absorbs the cleaning solution is few fast under the effect of the squeezing force and make the more even distribution of cleaning solution go up the roller brush 3 surfaces. The magnitude of interference between the extension part 6.2 and the roller brush 3 is gradually reduced, so that bristles passing through the extension part 6.2 can rebound relatively slowly, when the roller brush 3 rotates to the tail end of the extension part 6.2, the pressed quantity of the bristles is reduced, the roller brush 3 continues to rotate, and when the bristles are separated from the extension part 6.2, the rebound quantity 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 1 is reduced. The interference magnitude of the extension part 6.2 and the roller brush 3 is smaller than that of the scraper 5 and the roller brush 3, so that excessive extrusion of bristles is avoided, cleaning liquid is scraped by the extension part 6.2, and when the bristles leave the extension part 6.2, the bristles are provided with enough cleaning liquid.

In another embodiment, as shown in fig. 10, the front end of the extension part 6.2 is in interference fit with the roller brush 3, and the rest of the extension part 6.2 is in clearance fit with the roller brush 3. Brush hair on the roller brush 3 is earlier through supplying water piece 4 again through extension 6.2, the brush hair is when supplying water piece 4, can absorb the cleaning solution that flows on supplying water piece 4, but in the axial of roller brush 3, the water yield of supplying water piece 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 passes through extension 6.2, can be extruded by interference fit's extension 6.2, 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 extrusion and make the more even distribution of cleaning solution go up the roller brush 3 surfaces. The interference between the front end of the extension part 6.2 and the roller brush 3 is smaller than the interference between the scraper 5 and the roller brush 3, so that the cleaning solution is prevented from being scraped by the extension part 6.2, and when the bristles leave the extension part 6.2, the bristles are internally provided with enough cleaning solution.

In another embodiment, as shown in fig. 11, the front end of the extension part 6.2 is fixed with the roller brush cover 1.2 and both form a continuous smooth curved surface. The structure can ensure that dead angles for storing dirt and dirt are not easy to appear between the front end of the extension part 6.2 and the roller brush cover 1.2, and is convenient for cleaning the connection position of the front end and the roller brush cover. The front end of the extension part 6.2 and the roller brush cover 1.2 can be fixed in an integrated forming mode or in a clamping mode.

Preferably, casing 1 includes set casing 1.1 and roller brush lid 1.2, set casing 1.1 forms roller brush chamber 2 with roller brush lid 1.2 jointly, roller brush lid 1.2 can be dismantled with set casing 1.1 and be connected, dirt board 6 is located on roller brush lid 1.2. 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.

Preferably, the roller brush cover 1.2 includes a transparent portion located on the front side and a light shielding portion located on the rear side, and a dirt collecting region is arranged between the transparent portion and the dirt blocking plate 6 and located on the light shielding portion. 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 dirty district of collection can be blocked by the shading part, can make roller brush lid 1.2 look cleaner and tidier, avoids dirty district of collection directly to expose in the user's front, influences user's mood. The transparent part can facilitate the 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 1.2 according to the cleanliness of the dirt collecting area. The transparent part is made of a transparent material. The light shielding part can be made of opaque materials and is not light-tight; the body part of the shading part can also be made of transparent materials, and objects such as opaque parts or opaque stickers or opaque coatings are arranged between the body part and the machine body to just block the shading part, so that the sight of a user is just blocked by the opaque objects when the shading part is used by the user. The transparent part and the shading part can be of an integrated structure or a detachable and separated structure.

In one embodiment, the roller brush cover 1.2 comprises a dirt collecting area and a transition area, wherein the dirt collecting area is located on the front side of the dirt baffle 6, and the transition area is located on the front side of the dirt collecting area, and the dirt collecting area is connected with the transition area in a non-smooth mode. Dirty district of collection is close to scraper blade 5 and keeps off dirty board 6 more, and the filth major part of throwing away on the roller brush 3 can be concentrated on dirty district of collection, non-smooth connection structure has and blocks isolation, and the filth of throwing away along 3 surperficial tangential direction of roller brush can be blocked by non-smooth connection structure, is difficult to get into the transition district, piles up on non-smooth connection structure, and the user only need when clean focus dirty district and step 1.2.8 position can, reduced need key clear position, practiced thrift clean time. Dirty district of collection is connected with non-smooth between the transition region, dirty district of collection promptly is equipped with step and/or closed angle isotructure towards the non-smooth transition of the junction of the face of roller brush with the transition region towards the face of roller brush, and the junction position, and two surfaces are in the camber mutation of junction, and in this embodiment, dirty district of collection realizes smooth connection through step 1.2.8 with the junction department of transition region, and the high mutation in two regions is cut apart into two relatively independent regions.

Preferably, the roller brush cover 1.2 further comprises a mud guard zone located at the front side of the transition zone, and the height of the transition zone is higher than the height of the mud guard zone. The front side position that the fender mud district can block roller brush 3 throws away from 3 front sides of roller brush to avoiding the filth, the high height that is higher than fender mud district of transition district can avoid the filth in fender mud district to flow into the transition district, keeps the relative cleanness in transition district.

Preferably, as shown in fig. 7, the roller brush cover 1.2 includes a mud blocking portion 1.2.6 and an installation portion 1.2.7, and an installation cavity for arranging the limiting component is arranged on the installation portion 1.2.7. Spacing subassembly is installed behind the installation cavity, can realize roller brush lid 1.2 and fixed shell 1.1's the dismantlement be connected.

In another embodiment, as shown in fig. 3, the projection of the dirt deflector 6 in the vertical direction is located within the range of the scraper 5. The dirt blocking plate 6 of the structure can be vertically arranged or slightly obliquely arranged, the structure is simpler, the processing and the manufacturing are more convenient, the processing cost is lower, and the most basic mud blocking effect can be realized.

In another embodiment, as shown in fig. 3, the extension line of the bottom end of the dirt board 6 along the extension direction thereof passes through the scraper 5 or the water supply member 4. When the bottom of the dirt blocking plate 6 is not in contact with the scraper 5 or the water supply part 4, the structure can make the dirt of the bristles less likely to throw the dirt into the rear end space of the dirt blocking plate 6.

Claims (10)

1. The utility model provides a scrubbing brush subassembly of surface cleaning device, is including having the casing in roller brush chamber, the roller brush intracavity is equipped with roller brush, water supply spare and scraper blade, be equipped with the delivery port that provides the cleaning solution to the roller brush on the water supply spare, the scraper blade locate the below of water supply spare and with roller brush interference fit, characterized by, the water supply spare with be equipped with the dirt board between the roller brush, the dirt board is located the top of scraper blade, and the bottom of dirt board is located the within range of scraper blade in the ascending projection of vertical side to make the filth on the roller brush get rid of the front side to the dirt board.

2. The surface cleaning apparatus of claim 1 wherein a water gap is provided between the lower end of the dirt barrier and the scraper and/or the water supply.

3. A floor brush assembly according to claim 2 wherein the distance between the lower end of the dirt deflector and the scraper is no more than 3mm.

4. The surface cleaning apparatus of claim 1, wherein the bottom end of the dirt guard contacts the squeegee or the water supply member, and the bottom end of the dirt guard is provided with a water through hole for allowing the cleaning solution flowing from the water supply member to enter one side of the roller brush.

5. A floor brush assembly for a surface cleaning apparatus according to claim 1 wherein the dirt deflector is provided with a forwardly extending extension, said extension being disposed above the roller brush.

6. A floor brush assembly according to claim 5, wherein the extension portion is in interference fit with the roller brush, the interference between the extension portion and the roller brush being progressively reduced in the direction of rotation of the roller brush; or the front end of the extension part is in interference fit with the roller brush, and the rest positions of the extension part are in clearance fit with the roller brush.

7. The surface cleaning apparatus of claim 5 wherein the housing comprises a stationary housing and a roller brush cover, the stationary housing and the roller brush cover together forming a roller brush chamber, the roller brush cover being removably attached to the stationary housing, the dirt shield being disposed on the roller brush cover.

8. A floor brush assembly for a surface cleaning apparatus according to claim 7 wherein the forward end of the extension portion is secured to the roller brush cover and both form a continuous smooth curved surface.

9. The surface cleaning apparatus of claim 7, wherein the roller brush cover includes a transparent portion at a front side and a light shielding portion at a rear side, and a dirt collecting region is provided between the transparent portion and the dirt blocking plate, the dirt collecting region being located at the light shielding portion.

10. The surface cleaning apparatus of claim 7, wherein the roller brush cover includes a dirt collection area and a transition area located at a front side of the dirt deflector, the transition area being located at the front side of the dirt collection area, the dirt collection area and the transition area being non-smoothly connected.

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