CN113143103A - Floor brush assembly and dust collector with same - Google Patents

Abstract

The invention discloses a floor brush assembly and a dust collector with the same, wherein the floor brush assembly comprises: casing, round brush body and scrape the cover. The shell is internally provided with an accommodating space, and at least part of the inner surface of the shell is formed into a cylindrical surface extending along the horizontal direction; the rolling brush body is rotatably arranged in the shell around a first rotating central line, the first rotating central line is superposed with the central axis of the peripheral wall of the cylindrical surface of the accommodating space, and bristles extending along the radial direction of the rolling brush body are arranged on the rolling brush body; the scraping sleeve is rotatably arranged in the shell around a second rotating center line, the second rotating center line is eccentrically arranged relative to the central axis of the peripheral wall of the cylindrical surface of the accommodating space, a scraping sleeve hole penetrating through the scraping sleeve along the wall thickness direction of the scraping sleeve is formed in the scraping sleeve, and the bristles are suitable for extending out and retracting into the scraping sleeve hole along the wall thickness direction of the scraping sleeve. According to the floor brush assembly, hairs on the rolling brush body can be automatically cleaned in the working process of the dust collector, so that the reduction of the dust collection efficiency of the dust collector caused by excessive hairs attached to the rolling brush body is prevented.

Description

Floor brush assembly and dust collector with same

Technical Field

The invention relates to the technical field of household appliances, in particular to a floor brush assembly and a dust collector with the floor brush assembly.

Background

In the related art, during the operation of the vacuum cleaner, hairs are easy to attach or wrap around the bristles of the vacuum cleaner, which is difficult to clean, and on the other hand, long-term accumulation of the hairs can cause the dust collection efficiency of the vacuum cleaner to be reduced and even cause damage.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, the invention proposes a floor brush assembly which allows automatic cleaning of hairs attached to the bristles.

The invention also provides a dust collector with the floor brush assembly.

A floor brush assembly according to a first aspect of the invention comprises: a housing having an accommodating space therein, at least a portion of an inner surface of the housing at a position corresponding to the accommodating space being formed as a cylindrical surface extending in a horizontal direction; the rolling brush body is rotatably arranged in the shell around a first rotating center line extending along the horizontal direction, the first rotating center line is overlapped with the central axis of the peripheral wall of the cylindrical surface of the accommodating space, and bristles extending along the radial direction of the rolling brush body are arranged on the rolling brush body; scrape the cover, scrape the cover and rotationally establish around the second rotation center line that extends along the horizontal direction in the casing, second rotation center line for the central axis eccentric settings of the face of cylinder perisporium of accommodation space, scrape the cover and establish the outside of round brush body, scrape and be equipped with the edge on the cover the wall thickness direction of scraping the cover link up scrape the trepanning of cover, scrape the trepanning with the brush hair position corresponds, wherein, the round brush body with when scraping the cover and rotating, the brush hair is suitable for following the wall thickness direction of scraping the cover stretches out and retracts scrape the trepanning.

According to the floor brush assembly provided by the embodiment of the invention, the rolling brush body and the cylindrical surface part of the shell are concentrically arranged, the scraping sleeve and the cylindrical surface part of the shell are eccentrically arranged, so that the rolling brush body and the scraping sleeve are eccentrically arranged, bristles on the rolling brush body can repeatedly extend out and retract along the wall thickness direction of the scraping sleeve hole on the scraping sleeve in the rotating process of the rolling brush body and the scraping sleeve, and the hairs attached to the bristles can be automatically cleaned by the scraping sleeve hole and are sucked away by the dust collector in the process of retracting the bristles from the scraping sleeve hole.

According to some embodiments of the invention, the floor brush assembly further comprises: and the driving device is connected with one of the rolling brush body and the scraping sleeve, and the one of the rolling brush body and the scraping sleeve is in transmission connection with the other one of the rolling brush body and the scraping sleeve.

Further, the driving device includes: the scraper comprises a driving motor and a transmission assembly, wherein the driving motor is provided with a driving shaft, and the transmission assembly is connected between the driving shaft and the scraper sleeve.

Still further, the driving device further includes: a drive gear coaxially fixed with the drive shaft, the transmission assembly comprising: the first transmission gear is connected with the scraping sleeve; a drive belt tensioned between the drive gear and the first drive gear.

Further, the transmission assembly further comprises: the driving medium, the driving medium is followed the hollow ring shape of scraping the axial extension of cover, the one end of driving medium with first drive gear links to each other, the other end of driving medium with scrape the cover relatively fixed.

In some embodiments of the invention, the transmission comprises: the outer ring plate is in a cylindrical shape extending along the axial direction of the scraping sleeve, one axial end of the outer ring plate is fixed with the first transmission gear, and the other axial end of the outer ring plate is fixed with the scraping sleeve; the inner ring plate is in a cylindrical shape extending along the axial direction of the scraping sleeve, and is positioned on the radial inner side of the outer ring plate; and the connecting plate is connected between the inner wall surface of the outer ring plate and the outer wall surface of the inner ring plate.

Further, the transmission assembly further comprises: the second transmission gear is fixedly connected with the rolling brush body; and the third transmission gear is meshed with the second transmission gear and is relatively fixed with the inner ring plate.

Furthermore, a first meshing portion is formed on the third transmission gear, the first meshing portion is formed as internal teeth, and the first meshing portion is meshed with the second transmission gear in and out.

According to some embodiments of the present invention, the third transmission gear further has a second meshing portion formed thereon, the second meshing portion being spaced apart from the first meshing portion in the axial direction, the second meshing portion being formed as internal teeth, and the outer wall surface of the inner ring plate is provided with a third meshing portion, the second meshing portion meshing with the third meshing portion inside and outside.

Further, the first transmission gear, the second transmission gear, the first meshing portion, the second meshing portion and the third meshing portion have the same number of teeth.

According to some embodiments of the present invention, the housing is formed with a dust suction inlet and a dust suction outlet communicating with the accommodating space, and bristles at a position corresponding to the dust suction inlet have the longest length of protruding from the wiper hole in a circumferential direction of the drum brush body.

According to some embodiments of the present invention, in a radial direction of the drum brush body, a distance between the free ends of the bristles to the first rotational center axis is not less than a maximum distance between the first rotational center axis and an inner circumferential wall of the wiper sleeve.

In some embodiments of the present invention, the bristles include a plurality of bristles that are spaced apart in both a circumferential direction and an axial direction of the roller brush body, and the scraping sleeve holes include a plurality of holes that correspond to the plurality of bristles one to one.

According to some embodiments of the invention, the diameter of the bristles is smaller than the smallest width dimension of the scraper sleeve hole.

In some embodiments of the present invention, a length dimension of the wiper hole in a circumferential direction of the wiper is not less than 2 times an eccentric distance between the first rotational center axis and the second rotational center axis.

According to some embodiments of the invention, the wiper sleeve hole is formed as an elongated groove extending in a circumferential direction of the wiper sleeve.

According to some embodiments of the invention, the wiper sleeve hole comprises a first hole portion and a second hole portion which are connected in a circumferential direction of the wiper sleeve, the first hole portion being formed in a circular shape, the second hole portion being connected to the first hole portion and extending away from the first hole portion in the circumferential direction of the wiper sleeve, wherein a width dimension of the second hole portion in an axial direction of the wiper sleeve is smaller than a diameter of the first hole portion.

In some embodiments of the present invention, a peripheral wall of an end of the second hole portion away from the first hole portion is a circular cylindrical surface.

According to some embodiments of the present invention, the outer peripheral wall of the roller brush body is formed with a plurality of ribs spirally extending in the axial direction of the roller brush body, and the outer end face of each of the ribs is provided with a plurality of the bristles arranged at intervals in the extending direction of the rib.

Further, the round brush body includes first round brush somatic part and the second round brush somatic part that arranges in proper order in axial direction, on the first round brush somatic part protruding muscle revolve to with on the second round brush somatic part protruding muscle revolve to opposite, just on the first round brush somatic part protruding muscle with on the second round brush somatic part protruding muscle links to each other.

Still further, the scraping sleeve comprises: first cover portion and the second of scraping are scraped and are overlapped, first cover portion cover of scraping is established the outside of first round brush somatic part, the second is scraped the cover portion cover and is located the outside of second round brush somatic part, first cover portion and the second of scraping are scraped and are overlapped portion can dismantle the connection.

Furthermore, a first circumferential positioning part is formed on the first scraping sleeve part, a second circumferential positioning part is formed on the second scraping sleeve part, and the first circumferential positioning part and the second circumferential positioning part are in positioning fit to limit the displacement of the first scraping sleeve part and the second scraping sleeve part in the circumferential direction.

In a specific example, the first circumferential positioning portion is formed as a positioning groove recessed in the axial direction of the first wiper sleeve portion, and the second circumferential positioning portion is formed as a positioning projection projecting in the axial direction of the second wiper sleeve portion.

A vacuum cleaner according to a second aspect of the present invention comprises a floor brush assembly according to the first aspect of the present invention.

According to the dust collector, the hair attached to the brush hair can be automatically cleaned by arranging the floor brush assembly in the first aspect, manual cleaning is omitted, the floor brush assembly is more humanized, and the dust collection efficiency of the dust collector is further improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic view of a vacuum cleaner according to an embodiment of the present invention;

figure 2 is a cross-sectional view of the cleaner shown in figure 1;

FIG. 3 is an angled partial schematic view of the vacuum cleaner shown in FIG. 1;

figure 4 is a bottom view of the cleaner shown in figure 1;

FIG. 5 is a schematic view of the scraping sleeve shown in FIG. 1;

FIG. 6 is a schematic view of the roll brush body shown in FIG. 1;

FIG. 7 is a side view of the floor brush assembly shown in FIG. 1;

FIG. 8 is a partial schematic view of the floor brush assembly shown in FIG. 7;

FIG. 9 is a schematic view of another angle of the floor brush assembly shown in FIG. 8;

FIG. 10 is a schematic view of another embodiment of the roll brush body shown in FIG. 6;

FIG. 11 is a schematic view of another embodiment of the scraping sleeve shown in FIG. 5;

FIG. 12 is a schematic view of another embodiment of the floor brush assembly shown in FIG. 9;

FIG. 13 is a schematic view of another angle of the vacuum cleaner according to the embodiment of the present invention;

FIG. 14 is a cross-sectional view taken along line A-A of FIG. 13;

FIG. 15 is a perspective view of a floor brush assembly according to an embodiment of the present invention;

FIG. 16 is a perspective view of a first drive gear according to an embodiment of the present invention;

FIG. 17 is a perspective view of a transmission according to an embodiment of the present invention;

FIG. 18 is a perspective view of another angle of a transmission according to an embodiment of the present invention;

FIG. 19 is a perspective view of a third transfer gear according to an embodiment of the present invention;

FIG. 20 is another angled perspective view of a third transfer gear according to an embodiment of the present invention;

fig. 21 is a perspective view of a second transmission gear according to an embodiment of the invention.

Reference numerals:

the vacuum cleaner 100:

a floor brush component 1, a rolling brush body 11, a first rolling brush body part 111, a second rolling brush body part 112, a convex rib 1111,

the bristles 12 are, in turn,

a wiper 13, a first wiper portion 131, a wiper hole 1311, a first hole portion 13111, a second hole portion 13112, a first circumferential positioning portion 1312,

the second scraper sleeve portion 132, the second circumferential positioning portion 1321,

the housing 14, the dust suction inlet 141, the dust suction outlet 142,

the movement of the rollers 15, the drive means 16,

the suction chamber 17, the connection port 171,

a driving motor 18, a driving gear 181, a first transmission gear 19, a driving belt 20,

a transmission member 21, an outer ring plate 211, an inner ring plate 212, a third engaging portion 2121, a connecting plate 213,

a second transmission gear 22, a third transmission gear 23, a first meshing part 231 and a second meshing part 232.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

A floor brush assembly 1 according to an embodiment of the first aspect of the invention is described below with reference to fig. 1-21.

A floor brush assembly 1 according to an embodiment of the first aspect of the present invention comprises: a shell 14, a rolling brush body 11 and a scraping sleeve 13.

Specifically, the housing 14 is formed with an accommodating space, and at least a part of an inner surface of the housing 14 at a position corresponding to the accommodating space is formed as a cylindrical surface extending in the horizontal direction, for example, as shown in fig. 1, an upper portion of the front side of the housing 14 of the floor brush assembly 1 is formed as a circular arc plate shape having an axis extending in the horizontal direction, and specifically, the circular arc plate may be formed substantially as a quarter cylindrical panel, and the circular arc plate has a center line, and the center axis of the circular arc plate may extend in the horizontal direction.

The rolling brush body 11 comprises a shell 14, the rolling brush body 11 is provided with a first rotating central line, the first rotating central line of the rolling brush body 11 extends along the horizontal direction, the rolling brush body 11 can rotate around the first rotating central line, the first rotating central line is overlapped with the central line of the peripheral wall of the cylindrical surface of the accommodating space, and the rolling brush body 11 is provided with bristles 12 extending along the radial direction of the rolling brush body 11.

The scraping sleeve 13 can be arranged in the shell 14, the scraping sleeve 13 is sleeved on the outer side of the rolling brush body 11, the scraping sleeve 13 is provided with a second rotating central line, the second rotating central line of the scraping sleeve 13 extends along the horizontal direction, the scraping sleeve 13 can rotate around the second rotating central line, the scraping sleeve 13 can be arranged in the shell 14, and the second rotating central line is eccentrically arranged relative to the central line of the peripheral wall of the cylindrical surface of the accommodating space of the shell 14. Wherein, scrape the cover 13 and establish the outside at the round brush body 11, scrape and be equipped with on the cover 13 and scrape trepanning 1311, scrape trepanning 1311 and can scrape the wall thickness direction of cover 13 and link up and scrape cover 13, scrape the position one-to-one of trepanning 1311 and brush hair 12, when the round brush body 11 rotates with scraping cover 13, brush hair 12 is suitable for along scraping the wall thickness direction of cover 13 and stretch out and retract and scrape trepanning 1311.

The first rotation center line of the roller brush body 11 is eccentrically arranged with respect to the center line of the cylindrical peripheral wall of the accommodating space, and the second rotation center line of the scraper sleeve 13 is overlapped with the center line of the cylindrical peripheral wall, so that the first rotation center line of the roller brush body 11 is not overlapped with the second rotation center line of the scraper sleeve, in other words, the roller brush body 11 is eccentrically arranged with respect to the scraper sleeve 13. It should be noted that, when the vacuum cleaner 100 is in operation, the scraping sleeve 13 and the rolling brush body 11 can rotate synchronously. Thus, when the vacuum cleaner 100 is in operation, any part of the rolling brush body 11 rotates to be opposite to the ground in the rotation process of the rolling brush body 11, and the bristles 12 of the part can extend out of the scraper sleeve holes 1311 of the scraper sleeve 13 to perform ground cleaning work; because the rolling brush body 11 and the scraping sleeve 13 are arranged eccentrically, the part of the bristles 12 will retract into the scraping sleeve hole 1311 in the process of continuing to rotate along with the rolling brush body 11, and the hair wound or tangled by the bristles can be scraped off by the scraping sleeve hole 1311 and sucked away by the dust collector 100, so that inconvenience in cleaning caused by excessive hair attached to the bristles 12 and reduction in cleaning efficiency of the dust collector 100 can be prevented, and humanization in use of the dust collector 100 is improved.

According to the floor brush assembly 1 of the embodiment of the invention, the rolling brush body 11 and the cylindrical surface part of the shell 14 are concentrically arranged, the scraping sleeve 13 and the cylindrical surface part of the shell 14 are eccentrically arranged, so that the rolling brush body 11 and the scraping sleeve 13 are eccentrically arranged, the bristles 12 on the rolling brush body 11 can repeatedly extend and retract along the wall thickness direction of the scraping sleeve hole 1311 on the scraping sleeve 13 in the rotating process of the rolling brush body 11 and the scraping sleeve 13, and the hair attached to the bristles 12 can be automatically cleaned by the scraping sleeve hole 1311 and sucked by the dust collector 100 in the process of retracting the bristles 12 from the scraping sleeve hole 1311, so that the dust collector 100 can automatically clean the hair in use, manual cleaning is omitted, the humanization of the design of the dust collector 100 is improved, and the reduction of dust collection efficiency caused by hair blockage can be prevented.

Referring to fig. 13 to 21, according to some embodiments of the present invention, the driving device 16 is connected to one of the roller brush body 11 and the scraper sleeve 13, and one of the roller brush body 11 and the scraper sleeve 13 is in transmission connection with the other of the roller brush body 11 and the scraper sleeve 13. For example, the driving device 16 is connected with the rolling brush body 11, and the rolling brush body 11 is in transmission connection with the scraping sleeve 13; alternatively, the driving device 16 is connected with the scraping sleeve 13, and the scraping sleeve 13 is in transmission connection with the rolling brush body 11.

According to some embodiments of the invention, as shown in fig. 15, the driving device 16 includes: a drive motor 18 and a transmission assembly. The drive motor 18 has a drive shaft and the transmission assembly is connected between the drive shaft and the scraper sleeve 13. Thus, under the driving action of the transmission assembly, the driving motor 18 can drive the scraping sleeve 13 to rotate.

In some embodiments of the present invention, as shown in fig. 15, the driving device 16 further includes: drive gear 181. The driving gear 181 is fixed coaxially with the driving shaft, the transmission assembly comprises a first transmission gear 19 and a driving belt 20, the first transmission gear 19 is connected with the scraping sleeve 13, and the driving belt 20 is tensioned between the driving gear 181 and the first transmission gear 19 to keep the driving belt 20 having a proper tension during transmission, so as to avoid the driving belt 20 from slipping or the driving belt 20 from jumping and being pulled out due to tooth stripping. In this way, the driving gear 181 drives the driving belt 20 to move, and the driving belt 20 drives the first transmission gear 19 to rotate, so as to drive the scraping sleeve 13 to rotate, and the structure is simple and reliable.

In some embodiments of the present invention, as shown in fig. 14, the transmission assembly further comprises: a transmission member 21. The driving medium 21 is a hollow ring shape extending along the axial direction of the scraping sleeve 13, one end of the driving medium 21 is connected with the first driving gear 19, and the other end of the driving medium 21 is relatively fixed with the scraping sleeve 13. In this way, the first transmission gear 19 drives the transmission member 21 to rotate synchronously, thereby driving the scraper sleeve 13 to rotate synchronously.

Wherein, the other end of driving medium 21 and scraping cover 13 relatively fixed mean: the scraping sleeve 13 and the transmission member 21 may be fixedly connected by welding, screwing, or the transmission member 21 and the scraping sleeve 13 may be in transmission connection by gear engagement, as long as the transmission member 21 can drive the scraping sleeve 13 to synchronously rotate, and the invention is not limited herein. For example, the transmission member 21 extends in the left-right direction, the right end of the transmission member 21 is connected to the first transmission gear 19, and the left end of the transmission member 21 is fixed to the right end of the scraping sleeve 13.

Further, as shown in fig. 17 and 18, the transmission member 21 includes: outer ring plate 211, inner ring plate 212, and connecting plate 213.

Specifically, the outer ring plate 211 has a cylindrical shape extending in the axial direction of the wiper sleeve 13, one axial end of the outer ring plate 211 is fixed to the first transmission gear 19, and the other axial end of the outer ring plate 211 is fixed to the wiper sleeve 13. The inner ring plate 212 is cylindrical and extends in the axial direction of the scraper sleeve 13, and the inner ring plate 212 is located radially inward of the outer ring plate 211. The connection plate 213 is connected between the inner wall surface of the outer ring plate 211 and the outer wall surface of the inner ring plate 212. Thus, the first transmission gear 19 drives the outer ring plate 211 to rotate synchronously, thereby driving the scraper sleeve 13 to rotate synchronously, and the installation is relatively firm.

For example, the outer ring plate 211 and the inner ring plate 212 extend in the left-right direction, respectively, the first transmission gear 19 is fitted around the outer peripheral wall of the right end of the outer ring plate 211, and the left end of the outer ring plate 211 is fitted around the outer peripheral wall of the wiper 13. The connection plate 213 is annular, and the outer circumferential wall of the connection plate 213 is fixed to the inner wall surface of the outer ring plate 211, and the inner circumferential wall of the connection plate 213 is fixed to the outer wall surface of the inner ring plate 212.

The outer ring plate 211, the inner ring plate 212 and the connecting plate 213 can be an integral piece, so that the integration level is high, the structure is compact, the corresponding assembly is omitted, and at the moment, the section formed by the transmission piece 21 in a vertical plane vertical to the front-back direction is in a general I shape; outer ring plate 211, inner ring plate 212, and connecting plate 213 may also be separate pieces.

In some embodiments of the present invention, as shown in fig. 14, the transmission assembly further comprises: a second transfer gear 22 and a third transfer gear 23. The second transmission gear 22 is fixedly connected with the rolling brush body 11. The third transmission gear 23 is meshed with the second transmission gear 22, and the third transmission gear 23 is fixed relative to the inner ring plate 212.

Thus, the outer ring plate 211 drives the inner ring plate 212 to rotate synchronously, the inner ring plate 212 drives the third transmission gear 23 to rotate synchronously, the third transmission gear 23 drives the second transmission gear 22 to rotate, and the second transmission gear 22 drives the rolling brush body 11 to rotate synchronously, so that the first transmission gear 19 can drive the scraping sleeve 13 and the rolling brush body 11 to rotate simultaneously.

The third transmission gear 23 and the inner ring plate 212 are relatively fixed, which means that: the third transmission gear 23 and the inner ring plate 212 may be fixedly connected by welding, screwing, or the like, or the third transmission gear 23 and the inner ring plate 212 may be in transmission connection by gear meshing, or the third transmission gear 23 and the inner ring plate 212 may form an integral piece, as long as the inner ring plate 212 can drive the third transmission gear 23 to synchronously rotate, and the invention is not limited herein.

Alternatively, as shown in fig. 13, the second transmission gear 22 is in the shape of a cylinder extending in the axial direction of the roller brush body 11, one end of the second transmission gear 22 is formed with an engaging portion formed as external teeth, and the roller brush body 11 is fitted over the outer peripheral wall of the other end of the second transmission gear 22. In this way, the assembly of the roll brush body 11 with the second transmission gear 22 is facilitated.

Further, as shown in fig. 19 and 20, the third transmission gear 23 is formed with a first meshing portion 231, the first meshing portion 231 is formed as internal teeth, and the first meshing portion 231 meshes with the second transmission gear 22 inside and outside. In this way, a stable transmission connection between the third transmission gear 23 and the second transmission gear 22 is ensured.

Further, as shown in fig. 19 and 20, the third transmission gear 23 is further formed with a second meshing portion 232, the second meshing portion 232 is spaced apart from the first meshing portion 231 in the axial direction (for example, in the left-right direction), the second meshing portion 232 is formed as internal teeth, the outer wall surface of the inner ring plate 212 is provided with a third meshing portion 2121, the third meshing portion 2121 is formed as external teeth, and the second meshing portion 232 meshes with the third meshing portion 2121 inside and outside. Therefore, the inner ring plate 212 and the third transmission gear 23 are relatively fixed in a gear transmission mode, and compared with other fixing modes, the parts are more convenient to manufacture and assemble, and the structure is more stable.

Further, the first transmission gear 19, the second transmission gear 22, the first meshing portion 231, the second meshing portion 232, and the third meshing portion 2121 have the same number of teeth.

As shown in fig. 14 and fig. 15, the driving belt drives the first transmission gear 19 to rotate, the scraping sleeve 13 is driven by the first transmission gear 19 to synchronously rotate, and the process of rotating the rolling brush body 11 is as follows: the outer ring plate 211 drives the inner ring plate 212 to rotate synchronously, the third engaging portion 2121 of the inner ring plate 212 is engaged with the second engaging portion 232 for transmission to drive the third transmission gear 23 to rotate, the first engaging portion 231 of the third transmission gear 23 is engaged with the second transmission gear 22 for transmission, and the second transmission gear 22 drives the rolling brush body 11 to rotate synchronously.

Since the numbers of teeth of the second transmission gear 22, the first meshing portion 231, the second meshing portion 232, and the third meshing portion 2121 are the same, that is, the ratio of the numbers of teeth of the second meshing portion 232 to the third meshing portion 2121 is the same as the ratio of the numbers of teeth of the second transmission gear 22 to the first meshing portion 231, the angular velocities of the inner ring plate 212, the third transmission gear 23, and the second transmission gear 22 are the same, so that the angular velocities of the first transmission gear 19 and the rolling brush body 11 are the same. And, the angular velocities of the scraper sleeve 13 and the first transmission gear 19 are the same, whereby the angular velocities of the roller brush body 11 and the scraper sleeve 13 can be made the same, i.e., the roller brush body 11 and the scraper sleeve 13 rotate synchronously at the same angular velocity, thereby ensuring the mutual correspondence of the positions of the bristles 12 and the scraper sleeve holes 1311 in the circumferential direction, and further ensuring that the bristles 12 are adapted to extend and retract into the corresponding scraper sleeve holes 1311 in the radial direction of the scraper sleeve 13.

The inventor has found through research that the involute profiles of standard gears allow them to roll over each other without relative slippage, minimizing wear, and increasing efficiency. However, since the present application requires the use of the inner and outer gears having the same number of teeth, if the inner ring plate 212, the third transmission gear 23 and the second transmission gear 22 all use the standard gears, interference may occur at the tips of the teeth of the standard gears, and the normal operation of the gears cannot be ensured. Also, if interference is avoided by modifying the shape of the teeth of the standard gear, a high wear rate and a great noise may be generated.

To this end, in some embodiments of the present invention, non-standard gears are used for the inner ring plate 212, the third transfer gear 23, and the second transfer gear 22. Thus, more gear teeth contact between the second engagement portion 232 and the third engagement portion 2121 and between the second transmission gear 22 and the first engagement portion 231 can be ensured, so that stress at each contact point is reduced, the wear rate of the gear is reduced, the service life of the gear is prolonged, and noise is low.

According to some embodiments of the present invention, a dust suction inlet 141 and a dust suction outlet 142 are formed on the housing 14, and both the dust suction inlet 141 and the dust suction outlet 142 are communicated with the accommodating space, for example, as shown in fig. 4, the dust suction inlet 141 may be formed at the bottom of the housing 14, and the dust suction outlet 142 may be formed at the rear of the housing 14, and the length of the brush bristles 12 corresponding to the dust suction inlet 141 protruding out of the glove hole 1311 is the longest in the circumferential direction of the drum brush body 11. That is, when any one portion of the roller brush body 11 is rotated to be opposite to the dust suction inlet 141, the length of the bristles 12 protruding from the wiper hole 1311 is the longest, thereby facilitating the bristles 12 protruding from the dust suction inlet 141 for the cleaning work of the floor.

It can be understood that, when the part of the bristles 12 continues to rotate and turns from the dust inlet 141 to the dust outlet 142, the bristles 12 gradually retract into the sleeve scraping hole 1311, and when the part of the bristles 12 faces the dust outlet 142, the length of the bristles 12 extending out of the sleeve scraping hole 1311 is the shortest, and the wind force facing the dust outlet 142 is the largest, so that the dust and hair cleaned from the bristles 12 by the sleeve scraping hole 1311 can be sucked away by the dust collector 100, and the dust collection efficiency of the dust collector 100 can be fully improved.

According to some embodiments of the present invention, in the radial direction of the roller body 11, the distance between the free ends of the bristles 12 and the first central axis of rotation is not less than the maximum distance between the first central axis of rotation and the inner circumferential wall of the scraper sleeve 13, so that during the rotation of the roller body 11 and the scraper sleeve 13, the bristles 12 in the fully retracted state on the roller body 11 may have their free ends located in the scraper sleeve hole 1311 and between the inner circumferential wall and the outer circumferential wall of the scraper sleeve 13, or may slightly extend in the radial direction out of the scraper sleeve hole 1311 and beyond the outer circumferential wall of the scraper sleeve 13, which on the one hand facilitates the scraper sleeve 13 to scrape off the hairs attached to the bristles 12 to the maximum extent, and on the other hand ensures that the bristles 12 smoothly extend and retract in the direction of the through holes of the scraper sleeve hole 1311.

According to some embodiments of the present invention, the brush bristles 12 are included in a plurality spaced apart in both circumferential and axial directions of the roller brush body 11, the plurality of scraper holes 1311 are included, and the plurality of scraper holes 1311 correspond to the plurality of brush bristles 12 one-to-one, whereby cleaning efficiency of the cleaner 100 can be improved. For example, as shown in fig. 5 and 6, a first bristle group and a second bristle group may be disposed at intervals in a circumferential direction of the rolling brush body 11, each bristle group includes a plurality of bristles 12, and the plurality of bristles 12 may be arranged in a spiral line on the rolling brush body 11 along a direction of the first rotation center line; correspondingly, the circumferential direction of the scraping sleeve 13 can be provided with a first scraping sleeve hole group and a second scraping sleeve hole group at intervals, each scraping sleeve hole 1311 group comprises a plurality of scraping sleeve holes 1311, the scraping sleeve holes 1311 can be arranged on the scraping sleeve 13 along a spiral line along the direction of the second rotation center line, and the scraping sleeve holes 1311 correspond to the bristles 12 one to one.

In some embodiments of the invention, the diameter of the bristles 12 may be less than the minimum width dimension of the scraper sleeve hole 1311. Thus, the bristles 12 are easily extended or retracted from the casing scraping hole 1311, and the bristles 12 are prevented from being caught in the casing scraping hole 1311.

Because the scraping sleeve 13 and the rolling brush body 11 have an eccentric distance between the central rotation axes thereof, when the scraping sleeve 13 and the rolling brush body 11 rotate synchronously, the rolling brush body 11 has a rotation motion relative to the scraping sleeve 13 by taking the eccentric distance between the two central rotation axes as a radius, the bristles 12 arranged on the rolling brush body 11 also follow the rotation motion of the rolling brush body 11 relative to the scraping sleeve 13 by taking the eccentric distance between the two central rotation axes as a radius, and in order to ensure that the bristles 12 have a sufficient movement space in the circumferential direction of the scraping sleeve 13, according to some embodiments of the present invention, the length dimension of the scraping sleeve hole 1311 in the circumferential direction of the scraping sleeve 13 is not less than 2 times of the eccentric distance between the first central rotation axis and the second central rotation axis, so that the bristles 12 can have a sufficient stroke in the scraping sleeve hole 1311, and the scraping sleeve 13 is ensured not to interfere with the relative rotation motion of the rolling brush body 11.

In some embodiments of the present invention, the wiper hole 1311 is formed as an elongated groove extending in the circumferential direction of the wiper 13. Thus, the bristles 12 can make a telescopic motion relative to the scraper sleeve hole 1311 along the radial direction of the rolling brush body 11 and make a circular motion in the scraper sleeve hole 1311, and the bristles 12 are prevented from interfering with the peripheral wall of the scraper sleeve hole 1311.

According to some embodiments of the present invention, the grommet hole 1311 includes a first hole portion 13111 and a second hole portion 13112, the first hole portion 13111 and the second hole portion 13112 are connected in a circumferential direction of the grommet 13, the first hole portion 13111 is formed in a circular shape, and the second hole portion 13112 extends away from the first hole portion 13111 in the circumferential direction of the grommet 13, wherein a width dimension of the second hole portion 13112 in an axial direction of the grommet 13 is smaller than a diameter of the first hole portion 13111, so that the first hole portion 13111 and the second hole portion 13112 can cooperate with each other to define a movement path for the bristles 12, while making movement of the bristles 12 smoother. In addition, since the width dimension of the second hole 13112 is smaller, it is further advantageous to scrape off the hairs on the bristles by the side walls of the grommet hole 1311.

In some embodiments of the present invention, the peripheral wall of the second hole 13112 at the end far from the first hole 13111 is a circular cylindrical surface, so that the shape of the second hole 13112 can be matched with the shape of the bristles 12, and the bristles 12 are prevented from being stuck.

According to some embodiments of the present invention, a plurality of ribs 1111 (for example, a first rib and a second rib described below) are formed on the outer circumferential wall of the roller brush body 11, the plurality of ribs 1111 spirally extend along the axial direction of the roller brush body 11, a plurality of bristles 12 are provided on the outer end surface of each rib 1111, the plurality of bristles 12 are arranged at intervals in the extending direction of the rib 1111, and by providing the ribs 1111 and disposing the bristles 12 on the ribs 1111, the length of the bristles 12 can be reduced, the rigidity of the bristles 12 can be ensured, and the cleaning efficiency can be ensured.

For example, as shown in fig. 6, two ribs 1111 may be formed on the outer circumferential wall of the roller brush body 11, the two ribs 1111 are respectively a first rib and a second rib, the two ribs 1111 all extend spirally along the axial direction of the roller brush body 11, a first bristle group is arranged on the first rib, a second bristle group is arranged on the second rib, a plurality of bristles 12 of the first bristle group are arranged at intervals in the extending direction of the first rib, a plurality of bristles 12 of the second bristle group are arranged at intervals in the extending direction of the second rib, thereby ensuring that the bristles 12 on the roller brush body 11 can always act on the ground to clean the ground during the operation of the vacuum cleaner 100, and further simplifying the structure of the roller brush body 11.

Of course, the present invention is not limited thereto, and the roller brush body 11 may be formed with three ribs 1111 and bristle groups corresponding to the three ribs 1111 one by one, and correspondingly, the scraper sleeve 13 may be formed with three scraper sleeve hole groups corresponding to the three bristle groups one by one.

Further, as shown in fig. 9 and 10, the roll brush body 11 may include: a first roller body portion 111 and a second roller body portion 112. Specifically, the first roller brush body part 111 and the second roller brush body part 112 are sequentially arranged in the axial direction, the rotation direction of the convex rib 1111 on the first roller brush body part 111 is opposite to that of the convex rib 1111 on the second roller brush body part 112, and the convex rib 1111 on the first roller brush body part 111 is connected with the convex rib 1111 on the second roller brush body part 112, so that two parts of the roller brush body 11 in the axial direction can simultaneously clean the ground in the working process of the dust collector 100, and the part of the ground through which the dust collector 100 passes is prevented from being omitted. Of course, the present invention is not limited thereto, and the roll brush body 11 may be formed in one piece.

Further, the scraping sleeve 13 may include: a first wiper portion 131 and a second wiper portion 132. Specifically, the first sleeve scraping portion 131 is sleeved on the outer side of the first rolling brush body portion 111, the second sleeve scraping portion 132 is sleeved on the outer side of the second rolling brush body portion 112, and the first sleeve scraping portion 131 and the second sleeve scraping portion 132 are detachably connected, so that the first sleeve scraping portion 131 can clean the first rolling brush body portion 111, and the second sleeve scraping portion 132 can clean the second rolling brush body portion 112. Of course, the present invention is not limited thereto, and the scraping sleeve 13 may be formed in one piece.

Further, the first scraped sleeve portion 131 is formed with a first circumferential positioning portion 1312, the second scraped sleeve portion 132 is formed with a second circumferential positioning portion 1321, and the first circumferential positioning portion 1312 and the second circumferential positioning portion 1321 are positioned and engaged, so that displacement of the first scraped sleeve portion 131 and the second scraped sleeve portion 132 in the circumferential direction is restricted, and the first scraped sleeve portion 131 and the second scraped sleeve portion 132 rotate in synchronization.

In some embodiments, first circumferential positioning portion 1312 may be formed as a positioning groove, first circumferential positioning portion 1312 being recessed in the axial direction of first jacket scraper portion 131, second circumferential positioning portion 1321 being formed as a positioning projection projecting in the axial direction of second jacket scraper portion 132, second circumferential positioning portion 1321 being projecting in the axial direction of second jacket scraper portion 132, first circumferential positioning portion 1312 and second circumferential positioning portion 1321 cooperating with each other to restrict relative displacement of first jacket scraper portion 131 and second jacket scraper portion 132 in the circumferential direction.

A vacuum cleaner 100 according to a second aspect of the invention comprises a floor brush assembly 1 according to the first aspect of the invention.

According to the vacuum cleaner 100 of the present invention, by providing the floor brush assembly 1 of the first aspect, hairs attached to the brush bristles 12 can be automatically cleaned, manual cleaning is omitted, the vacuum cleaner is more user-friendly, and the vacuum cleaning efficiency of the vacuum cleaner 100 is further improved.

A vacuum cleaner 100 according to an embodiment of the present invention will be described with reference to fig. 1 to 21.

The vacuum cleaner 100 according to the present invention includes: a floor brush assembly 1.

Specifically, as shown in fig. 1, the floor brush assembly 1 includes a rolling brush body 11, a scraping sleeve 13, a housing 14, a roller 15, a driving device 164, and a dust suction cavity 17, wherein the rolling brush body 11 can rotate around a first rotation center line, a first protruding rib and a second protruding rib can be formed on an outer peripheral wall of the rolling brush body 11, the first protruding rib and the second protruding rib both extend spirally along an axial direction of the rolling brush body 11, a first bristle group and a second bristle group are provided on the rolling brush body 11, the first bristle group and the second bristle group both include a plurality of bristles 12, a first bristle group is disposed on the first protruding rib, a plurality of bristles 12 of the first bristle group are all arranged at intervals in an extending direction of the first protruding rib, a second bristle group is disposed on the second protruding rib, and a plurality of bristles 12 of the second bristle group are all arranged at intervals in an extending direction of the second protruding rib. Further, the roll brush body 11 includes; a first roller body portion 111 and a second roller body portion 112. The first roller brush body portion 111 and the second roller brush body portion 112 are arranged in order in the axial direction, the rotation direction of the convex rib 1111 of the first roller brush body portion 111 is opposite to the rotation direction of the convex rib 1111 of the second roller brush body portion 112, and the convex rib 1111 of the first roller brush body portion 111 is connected with the convex rib 1111 of the second roller brush body portion 112.

The scraping sleeve 13 can rotate around the second rotation center line, the scraping sleeve 13 is sleeved on the outer side of the roller brush body 11, a first scraping sleeve hole group and a second scraping sleeve hole group can be formed on the scraping sleeve 13, each of the first scraping sleeve hole group and the second scraping sleeve hole group comprises a plurality of scraping sleeve holes 1311, the plurality of scraping sleeve holes 1311 of the first scraping sleeve hole group correspond to the plurality of bristles 12 of the first bristle group one by one, the plurality of scraping sleeve holes 1311 of the second scraping sleeve hole group correspond to the plurality of bristles 12 of the second bristle group one by one, the scraping sleeve holes 1311 are formed into elongated grooves extending in the circumferential direction of the scraping sleeve 13, each of the scraping sleeve holes 1311 comprises a first hole portion 13111 and a second hole portion 13112, the first hole portion 13111 is a circular hole, the second hole portion 13112 is connected with the first hole portion 13111 and extends away from the first hole portion 13111, and the width dimension of the second hole portion 13112 in the axial direction of the scraping sleeve 13 is smaller than the diameter of the first hole portion 13111. Accordingly, the scraping sleeve 13 may include: the first sleeve portion 131 and the second sleeve portion 132 are scraped, the first sleeve portion 131 is sleeved on the outer side of the first roller brush body portion 111, the second sleeve portion 132 is sleeved on the outer side of the second roller brush body portion 112, and the first sleeve portion 131 and the second sleeve portion 132 are detachably connected.

The driving device 16 may include: drive motor 18, transmission assembly and drive gear 181. Wherein, driving motor 18 has the drive shaft, and transmission assembly connects between the drive shaft and scrapes cover 13, and drive gear 181 is coaxial fixed with the drive shaft, and transmission assembly includes: the scraper comprises a first transmission gear 19, a driving belt 20 and a transmission piece 21, wherein the first transmission gear 19 is connected with the scraper sleeve 13; the drive belt 20 is tensioned between the drive gear 181 and the first transmission gear 19; the transmission member 21 includes: an outer ring plate 211, an inner ring plate 212 and a connecting plate 213, wherein the outer ring plate 211 is in a cylindrical shape extending along the axial direction of the scraper sleeve 13, one axial end of the outer ring plate 211 is fixed with the first transmission gear 19, and the other axial end of the outer ring plate 211 is fixed with the scraper sleeve 13; the inner ring plate 212 is cylindrical and extends in the axial direction of the scraper sleeve 13, and the inner ring plate 212 is positioned radially inward of the outer ring plate 211; the connecting plate 213 is connected between the inner wall surface of the outer ring plate 211 and the outer wall surface of the inner ring plate 212, the transmission member 21 is in a hollow ring shape extending in the axial direction of the scraper sleeve 13, one end of the transmission member 21 is connected to the first transmission gear 19, and the other end of the transmission member 21 is fixed to the scraper sleeve 13.

In addition, the transmission assembly further comprises: the second transmission gear 22 and the third transmission gear 23 are fixedly connected, and the second transmission gear 22 is fixedly connected with the rolling brush body 11; the third transmission gear 23 is meshed with the second transmission gear 22, and the third transmission gear 23 is relatively fixed with the inner ring plate 212; the third transmission gear 23 is formed with a first meshing portion 231, the first meshing portion 231 is formed as internal teeth, the first meshing portion 231 is meshed with the second transmission gear 22 in an inner-outer mode, the third transmission gear 23 is further formed with a second meshing portion 232, the second meshing portion 232 is spaced from the first meshing portion 231 in the axial direction, the second meshing portion 232 is formed as internal teeth, the outer wall surface of the inner ring plate 212 is provided with a third meshing portion 2121, the second meshing portion 232 is meshed with the third meshing portion 2121 in an inner-outer mode, and the number of teeth of the first transmission gear 19, the second transmission gear 22, the first meshing portion 231, the second meshing portion 232 and the third meshing portion 2121 is the same. The driving device 16 can be respectively connected with the roller brush body 11 and the scraping sleeve 13 in a transmission way and is used for driving the roller brush body 11 to rotate around a first rotation central line and driving the scraping sleeve 13 to rotate around a second rotation central line.

The shell 14 covers the outside of the floor brush assembly 1 and the driving device 16, a dust suction inlet 141 is formed at the bottom of the shell 14, the bristles 12 on the rolling brush body 11 are suitable for extending out of the dust suction inlet 141 to clean the floor, and a dust suction outlet 142 is formed at the rear side of the shell 14; the dust suction cavity 17 is arranged at the rear side of the shell 14, the front end of the dust suction cavity 17 is formed into a connecting port 171, the connecting port 171 can be connected with the dust suction outlet 142, the dust suction outlet 142 can be opposite to the floor brush assembly 1, and when the dust collector 100 works, dust and hair attached to the floor brush assembly 1 can be sucked into the dust suction cavity 17 through the dust suction outlet 142.

The rollers 15 may be provided in two, and the two rollers 15 may be arranged side by side at the bottom of the cleaner 100, thereby facilitating movement of the cleaner 100.

When the vacuum cleaner 100 is in operation, when the bristles 12 on the rolling brush body 11 and the sleeve scraping holes 1311 corresponding to the bristles 12 rotate to be right opposite to the dust suction inlet 141, the bristles 12 are suitable for completing the extending process, and the length of the bristles 12 extending out of the sleeve scraping holes 1311 is the largest, so that the bristles 12 can clean the ground conveniently; in the process that the rolling brush body 11 and the scraping sleeve 13 continue to rotate, the bristles 12 begin to retract into the scraping sleeve hole 1311, and when the corresponding scraping sleeve holes 1311 of the bristles 12 and the bristles 12 rotate to be just opposite to the dust suction outlet 142, the bristles 12 are suitable for completing the retraction process, at this time, the free ends of the bristles 12 can be positioned in the scraping sleeve hole 1311 and are flush with the outer wall of the scraping sleeve 13 or slightly extend out of the scraping sleeve hole 1311, so that the dust suction cavity 17 can suck sundries or hairs scraped from the bristles 12 by the scraping sleeve 13. Therefore, the rolling brush body 11 and the scraping sleeve 13 repeatedly complete the processes, so that the efficiency of cleaning the ground by the dust collector 100 and the cleaning effect are improved, and the hair attached to the rolling brush body 11 can be automatically cleaned to prevent blockage.

Example two

As shown in fig. 10 to 12, the present embodiment has substantially the same structure as the first embodiment, wherein the same reference numerals are used for the same components, and the difference is only that: in the first embodiment, the rolling brush body 11 includes a first rolling brush body 111 and a second rolling brush body 112, and two ribs 1111 and two bristle groups corresponding to the ribs 1111 in one-to-one correspondence are formed on the rolling brush body 11, the scraping sleeve 13 may include a first scraping sleeve portion 131 and a second scraping sleeve portion 132, and two scraping sleeve hole groups are formed on the scraping sleeve 13; and in the second embodiment, the rolling brush body 11 is formed into an integral type, three ribs 1111 and three bristle groups corresponding to the ribs 1111 one to one are formed on the rolling brush body 11, correspondingly, the scraping sleeve 13 is formed into an integral type, and three scraping sleeve hole groups corresponding to the three bristle groups one to one are formed on the scraping sleeve 13.

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 invention 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 invention.

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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined 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; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. 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 description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (24)

1. A floor brush assembly, comprising:

a housing having an accommodating space therein, at least a portion of an inner surface of the housing at a position corresponding to the accommodating space being formed as a cylindrical surface extending in a horizontal direction;

the rolling brush body is rotatably arranged in the shell around a first rotating center line extending along the horizontal direction, the first rotating center line is overlapped with the central axis of the peripheral wall of the cylindrical surface of the accommodating space, and bristles extending along the radial direction of the rolling brush body are arranged on the rolling brush body;

the scraping sleeve is rotatably arranged in the shell around a second rotating central line extending along the horizontal direction, the second rotating central line is eccentrically arranged relative to the central axis of the peripheral wall of the cylindrical surface of the accommodating space, the scraping sleeve is arranged on the outer side of the rolling brush body, a scraping sleeve hole penetrating through the scraping sleeve along the wall thickness direction of the scraping sleeve is arranged on the scraping sleeve, and the scraping sleeve hole corresponds to the position of the brush hair,

when the rolling brush body and the scraping sleeve rotate, the bristles are suitable for extending out of and retracting into the scraping sleeve hole along the wall thickness direction of the scraping sleeve.

2. The floor brush assembly of claim 1, further comprising: and the driving device is connected with one of the rolling brush body and the scraping sleeve, and the one of the rolling brush body and the scraping sleeve is in transmission connection with the other one of the rolling brush body and the scraping sleeve.

3. A floor brush assembly according to claim 2, wherein the drive means comprises: the scraper comprises a driving motor and a transmission assembly, wherein the driving motor is provided with a driving shaft, and the transmission assembly is connected between the driving shaft and the scraper sleeve.

4. A floor brush assembly according to claim 3, wherein said drive means further comprises: a drive gear coaxially fixed with the drive shaft, the transmission assembly comprising:

the first transmission gear is connected with the scraping sleeve;

a drive belt tensioned between the drive gear and the first drive gear.

5. The floor brush assembly of claim 4, wherein the drive assembly further comprises: the driving medium, the driving medium is followed the hollow ring shape of scraping the axial extension of cover, the one end of driving medium with first drive gear links to each other, the other end of driving medium with scrape the cover relatively fixed.

6. A floor brush assembly according to claim 5, wherein the transmission comprises:

the outer ring plate is in a cylindrical shape extending along the axial direction of the scraping sleeve, one axial end of the outer ring plate is fixed with the first transmission gear, and the other axial end of the outer ring plate is fixed with the scraping sleeve;

the inner ring plate is in a cylindrical shape extending along the axial direction of the scraping sleeve, and is positioned on the radial inner side of the outer ring plate;

and the connecting plate is connected between the inner wall surface of the outer ring plate and the outer wall surface of the inner ring plate.

7. The floor brush assembly of claim 6, wherein the drive assembly further comprises:

the second transmission gear is fixedly connected with the rolling brush body;

and the third transmission gear is meshed with the second transmission gear and is relatively fixed with the inner ring plate.

8. The floor brush assembly of claim 7, wherein the third drive gear has a first meshing portion formed thereon, the first meshing portion being formed as internal teeth, and the first meshing portion meshing with the second drive gear both internally and externally.

9. The floor brush assembly according to claim 8, wherein the third transmission gear further has a second meshing portion formed thereon, the second meshing portion being spaced apart from the first meshing portion in the axial direction, the second meshing portion being formed as internal teeth, and an outer wall surface of the inner ring plate is provided with a third meshing portion, the second meshing portion being meshed with the third meshing portion inside and outside.

10. The floor brush assembly of claim 9, wherein the first drive gear, the second drive gear, the first mesh portion, the second mesh portion, and the third mesh portion have the same number of teeth.

11. The floor brush assembly according to claim 1, wherein a dust suction inlet and a dust suction outlet communicating with the accommodating space are formed on the housing, and the length of the brush hairs at the position corresponding to the dust suction inlet extending out of the wiper hole is longest in the circumferential direction of the drum brush body.

12. A floor brush assembly according to claim 1, characterized in that in the radial direction of the roller brush body the distance between the free ends of the bristles to the first centre axis of rotation is not less than the maximum distance between the first centre axis of rotation and the inner circumferential wall of the scraper sleeve.

13. The floor brush assembly according to claim 1, wherein the bristles are arranged in a plurality at intervals in both circumferential and axial directions of the roller brush body, the scraping sleeve hole is arranged in a plurality, and the scraping sleeve holes correspond to the bristles in a one-to-one manner.

14. The floor brush assembly of claim 1, wherein the diameter of the bristles is less than the smallest width dimension of the wiper aperture.

15. The floor brush assembly of claim 1, wherein a length dimension of the scraper sleeve hole in a circumferential direction of the scraper sleeve is not less than 2 times an eccentric distance between the first central axis of rotation and the second central axis of rotation.

16. A floor brush assembly according to claim 1, characterized in that the scraper sleeve hole is formed as an elongated groove extending in the circumferential direction of the scraper sleeve.

17. The floor brush assembly of claim 1, wherein the wiper sleeve bore includes a first bore portion and a second bore portion connected in a circumferential direction of the wiper sleeve, the first bore portion being formed in a circular shape, the second bore portion being connected to the first bore portion and extending away from the first bore portion in the circumferential direction of the wiper sleeve, wherein a width dimension of the second bore portion in an axial direction of the wiper sleeve is smaller than a diameter of the first bore portion.

18. A floor brush assembly according to claim 17, wherein the peripheral wall of the second bore section at an end remote from the first bore section is a circular cylindrical surface.

19. The floor brush assembly according to claim 1, wherein a plurality of ribs spirally extending in an axial direction of the roller brush body are formed on the outer peripheral wall of the roller brush body, and a plurality of the bristles are arranged on an outer end surface of each of the ribs at intervals in an extending direction of the rib.

20. The floor brush assembly according to claim 19, wherein the roller brush body comprises a first roller brush body portion and a second roller brush body portion arranged in sequence in the axial direction, the rotation direction of the rib on the first roller brush body portion is opposite to the rotation direction of the rib on the second roller brush body portion, and the rib on the first roller brush body portion is connected with the rib on the second roller brush body portion.

21. The floor brush assembly of claim 20, wherein the scraper sleeve comprises: first cover portion and the second of scraping are scraped and are overlapped, first cover portion cover of scraping is established the outside of first round brush somatic part, the second is scraped the cover portion cover and is located the outside of second round brush somatic part, first cover portion and the second of scraping are scraped and are overlapped portion can dismantle the connection.

22. The floor brush assembly of claim 21, wherein the first scraper sleeve portion has a first circumferential locating portion formed thereon, and the second scraper sleeve portion has a second circumferential locating portion formed thereon, the first and second circumferential locating portions being in locating engagement to limit displacement of the first and second scraper sleeve portions in a circumferential direction.

23. The floor brush assembly of claim 22, wherein the first circumferential positioning portion is formed as a positioning groove recessed in an axial direction of the first scraper sleeve portion, and the second circumferential positioning portion is formed as a positioning projection projecting in an axial direction of the second scraper sleeve portion.

24. A vacuum cleaner comprising a floor brush assembly according to any one of claims 1-23.

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