CN220001671U - Floor brush assembly and cleaning equipment - Google Patents

Abstract

The utility model discloses a floor brush assembly and cleaning equipment, which comprises a floor brush shell provided with a sliding groove, a rolling brush and a height adjusting assembly, wherein the rolling brush is movably arranged in the floor brush shell through a rolling brush supporting piece; the height adjusting assembly comprises an operating piece, wherein the operating piece acts on the rolling brush supporting piece to adjust the height of the rolling brush and the rolling brush supporting piece relative to the ground brush shell; the rolling brush is connected in the sliding groove in a sliding manner along the extending direction of the sliding groove through the rolling brush supporting piece. According to the utility model, the operating piece is driven to act on the rolling brush supporting piece, so that the height of the rolling brush and the rolling brush supporting piece relative to the ground brush shell is adjusted, the distance between the rolling brush and the surface to be cleaned can be adjusted, the rolling brush is suitable for different surfaces to be cleaned, and the rolling brushes of different types are not required to be replaced manually, so that the adjustment is convenient and quick; through setting up the sliding tray, the round brush passes through round brush support piece and follows sliding tray extending direction sliding connection in the sliding tray, but adaptation different wait to clean the face, and application scope is wider.

Description

Floor brush assembly and cleaning equipment

Technical Field

The utility model belongs to the technical field of cleaning tools, and particularly relates to a floor brush assembly and cleaning equipment.

Background

Existing cleaning devices are used to clean floors, carpets, and the like, and are typically configured with a plurality of brush assemblies for cleaning floors, carpets, and the like. Wherein the roller brush is one of the main components of the floor brush assembly. In the prior art, the rolling brush is generally fixedly arranged in the ground brush assembly, and the radial dimension of the rolling brush of the same ground brush assembly is also fixed, so that in order to meet the cleaning requirements of different surfaces to be cleaned, a plurality of rolling brushes can be configured for users to replace in the use process. However, currently, when the user is applicable, the special rolling brush needs to be selected and manually replaced according to different surfaces to be cleaned.

Disclosure of Invention

Based on this, it is necessary to provide a floor brush assembly and cleaning device which can adapt to different surfaces to be cleaned, does not need to manually replace different types of rolling brushes, can realize automatic reset, and is more convenient to operate.

A floor brush assembly comprising:

a floor brush housing;

the rolling brush is movably arranged in the ground brush shell through a rolling brush supporting piece;

the height adjusting assembly comprises an operating piece, wherein the operating piece acts on the rolling brush supporting piece to adjust the height of the rolling brush and the height of the rolling brush supporting piece relative to the ground brush shell;

the floor brush comprises a floor brush shell, a floor brush cover and a cover, wherein a sliding groove is formed in the floor brush shell, and extends along the height direction of the floor brush shell; the rolling brush is connected in the sliding groove in a sliding manner along the extending direction of the sliding groove through the rolling brush supporting piece.

Optionally, in the above ground brush assembly, two opposite limiting blocking walls are formed in the ground brush housing, and the sliding groove is formed between the two limiting blocking walls.

Optionally, in the above ground brush assembly, a limiting groove is formed on the rolling brush supporting member, and the two limiting blocking walls are both slidably connected to the limiting groove.

Optionally, in the above ground brush assembly, the operation member includes an operation portion and an abutment portion connected to the operation portion, and the abutment portion is capable of abutting against the rolling brush support member; the abutting part can be driven to abut against the rolling brush supporting piece by driving the operating part, and the rolling brush supporting piece can be driven to move so as to adjust the height of the rolling brush and the rolling brush supporting piece relative to the ground brush shell.

Optionally, in the above ground brush assembly, the abutting portion is connected to one end of the operating portion and is perpendicular to the operating portion; the ground brush shell is provided with an opening, and the abutting part penetrates through the opening and is in sliding connection with the ground brush shell.

Optionally, in the above ground brush assembly, the operation portion is further provided with a limiting portion, which is used for limiting a position of the abutting portion relative to the operation portion.

Optionally, in the above ground brush assembly, a through operation hole is formed in the ground brush housing, a pulling portion protruding from the outside of the ground brush housing is disposed on the operation portion, and the pulling portion penetrates through the operation hole.

Optionally, the above ground brush assembly, the abutting portion is hinged to the ground brush housing, the operating portion is slidably connected with the ground brush housing, and is connected with one end of the abutting portion through the matching assembly, and by driving the operating portion to move, one end of the abutting portion can be driven to rise or fall, so that the other end of the abutting portion is driven to abut against or separate from the rolling brush supporting piece.

Optionally, the above ground brush assembly, the matching assembly includes a first inclined surface disposed on the operating portion and a second inclined surface disposed on the abutting portion, and the first inclined surface and the second inclined surface form a surface matching.

Optionally, in the above ground brush assembly, the first inclined surface is inclined relative to an upper surface of the operating portion;

and/or the second inclined surface is arranged obliquely relative to the lower surface of the abutting part.

Optionally, in the above ground brush assembly, an inclination angle and an inclination direction of the second inclined plane are the same as an inclination angle and an inclination direction of the first inclined plane.

Optionally, in the above ground brush assembly, the operation portion is further provided with a first receiving surface, and the abutting portion is further provided with a second receiving surface matched with the first receiving surface, and when the first receiving surface is matched with the second receiving surface to form a surface, the abutting portion cannot rotate.

Optionally, the above ground brush assembly, the height adjusting assembly further includes a reset member disposed between the ground brush housing and the rolling brush support member, and the reset member is configured to provide a reset force for enabling the rolling brush and the rolling brush support member to be in an initial state.

Optionally, in the above ground brush assembly, a dust-proof ring is further connected between the rolling brush support member and the ground brush housing.

The utility model also provides a cleaning device comprising a floor brush assembly as described above.

The technical scheme provided by the utility model has the following advantages:

in the scheme, the operating piece is driven to enable the operating piece to act on the rolling brush supporting piece so as to adjust the height of the rolling brush and the rolling brush supporting piece relative to the ground brush shell, so that the distance between the rolling brush and the surface to be cleaned can be adjusted, the appropriate distance can be selected according to different surfaces to be cleaned so as to adapt to different surfaces to be cleaned, and the rolling brush of different types is not required to be replaced manually, so that the adjustment is convenient and quick; through setting up the sliding tray that extends along the direction of height of scrubbing brush casing, the round brush passes through round brush support piece and follows sliding tray extending direction sliding connection in the sliding tray, but adaptation different wait to clean the face, and application scope is wider.

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Drawings

Fig. 1 is a schematic structural view of a floor brush assembly according to an embodiment of the utility model.

Fig. 2 is a partial block diagram of a floor brush assembly according to an embodiment of the present utility model in a first state.

FIG. 3 is a partial block diagram of a floor brush assembly in a second state according to an embodiment of the present utility model.

FIG. 4 is a partial block diagram of a floor brush assembly according to an embodiment of the present utility model.

Fig. 5 is a partial structural cross-sectional view of a floor brush assembly according to an embodiment of the present utility model.

Fig. 6 is a schematic structural view of an operation portion according to an embodiment of the present utility model.

Fig. 7 is a schematic structural view of an abutment portion according to an embodiment of the utility model.

Fig. 8 is a front view of an abutting portion according to an embodiment of the present utility model.

Fig. 9 is a cross-sectional view of a floor brush assembly according to another embodiment of the utility model.

Fig. 10 is an enlarged view of fig. 9 a, in which the structure of the rolling brush support is omitted, and the position of the sliding groove shown in the frame is not the structure of the sliding groove.

Fig. 11 is an enlarged view of a portion a of fig. 9, in which the structure of the floor brush housing and the dust ring is omitted.

Reference numerals illustrate:

10. a floor brush assembly; 100. a floor brush housing; 110. a sliding groove; 120. an upper housing; 130. a lower housing; 140. limiting retaining walls; 150. a side wall; 160. an upper baffle wall; 170. a lower baffle wall; 200. a rolling brush; 300. an operating member; 310. an operation unit; 320. an abutting portion; 321. a second receiving surface; 330. a spanner; 340. a limit part; 350. a first receiving surface; 400. a reset member; 500. a first inclined surface; 600. a second inclined surface; 700. a rolling brush support; 710. a limit groove; 800. a dust-proof ring.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. The utility model will be described in detail hereinafter with reference to the drawings in conjunction with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

In the present utility model, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present utility model.

The utility model provides a floor brush assembly 10, which can be applied to cleaning equipment such as a dust collector, a floor sweeping machine, a floor mopping machine, a sweeping and mopping integrated machine and the like for cleaning a surface to be cleaned. It should be noted that the application scenario type of the embodiment of the present utility model does not limit the structure of the ground brush assembly 10 of the embodiment of the present utility model.

Referring to fig. 1, 2 and 3, in an embodiment of the present utility model, a floor brush assembly 10 is provided, which includes a floor brush housing 100, a roller brush 200 and a height adjusting assembly, wherein the roller brush 200 is movably disposed in the floor brush housing 100, and the height adjusting assembly is used for adjusting the height of the roller brush 200 relative to the floor brush housing 100 so as to adapt to different surfaces to be cleaned. Specifically, the floor brush housing 100 includes a floor brush chamber in which the roller brush 200 is movably disposed.

It is to be understood that: when the floor brush assembly 10 is in operation, the distance between the bottom of the floor brush housing 100 and the surface to be cleaned is fixed, i.e., the distance between the roller brush 200 and the surface to be cleaned may be referred to as the height of the roller brush 200 relative to the floor brush housing 100. The height adjusting assembly can adjust the distance between the rolling brush 200 and the surface to be cleaned so as to adapt to different surfaces to be cleaned.

More to understand is: when different surfaces to be cleaned are cleaned, the distance between the rolling brush 200 and the surfaces to be cleaned is different. In order to prevent the bristles of the rolling brush 200 from contacting the hard ground when cleaning the hard ground, so as to prevent the bristles of the rolling brush 200 from damaging the hard ground, the height of the rolling brush 200 is adjusted by adjusting the height adjusting assembly, so that the distance between the rolling brush 200 and the surface to be cleaned is increased. When the soft ground is cleaned, in order to enable the bristles of the rolling brush 200 to fully contact the soft ground, the height of the rolling brush 200 is adjusted to be low by adjusting the height adjusting component, so that the distance between the rolling brush 200 and the surface to be cleaned is reduced, the bristles of the rolling brush 200 can be ensured to fully contact the soft ground, and the cleaning effect can be improved. The hard floor may be a floor, for example. The soft floor may be a blanket.

In addition, the distance between the rolling brush 200 and the surface to be cleaned can be adjusted according to the difference of the garbage particles on the surface to be cleaned. Specifically, the larger the garbage particles of the surface to be cleaned, the larger the distance between the rolling brush 200 and the surface to be cleaned; conversely, the smaller the garbage particles on the surface to be cleaned, the smaller the distance between the rolling brush 200 and the surface to be cleaned, and the surface to be cleaned can be cleaned with the highest working efficiency.

Referring to fig. 1, 2 and 3, two opposite ends of the rolling brush 200 are movably mounted in the ground brush housing 100 through rolling brush supporting members 700. Specifically, the rolling brush 200 is disposed between two rolling brush supporters 700. The rolling brush 200 may be fixedly connected to both rolling brush holders 700. The rolling brush 200 may be detachably connected to both rolling brush supporting members 700, which is not limited in the present utility model.

Referring to fig. 2, 3 and 9, the height adjusting assembly includes an operating member 300, and the operating member 300 acts on the roller brush support 700 to adjust the height of the roller brush 200 and the roller brush support 700 relative to the brush housing 100. When the height of the rolling brush 200 and the rolling brush support 700 relative to the ground brush housing 100 is required to be adjusted, the operating member 300 is driven so that the operating member 300 acts on the rolling brush support 700.

Referring to fig. 2, 3, 4 and 5, the floor brush housing 100 is provided with a sliding groove 110, and the sliding groove 110 extends along the height direction of the floor brush housing 100. The roller brush 200 is slidably coupled in the sliding groove 110 by the roller brush supporter 700 in the extending direction of the sliding groove 110. Specifically, the floor brush housing 100 includes an upper housing 120 and a lower housing 130, and the sliding groove 110 is formed between the upper housing 120 and the lower housing 130.

The rolling brush support 700 is fitted with the sliding groove 110. That is, the rolling brush supporter 700 has a first contact portion and the sliding groove 110 has a second contact portion, and the first contact portion is adapted to the second contact portion. Illustratively, the first contact portion may be a protrusion formed convexly at the outer circumference of the rolling brush supporter 700. The second contact portion may be a recess formed in the sliding groove 110. The first contact portion may also be a recess formed at the outer circumference of the rolling brush supporter 700. The second contact portion may also be a protrusion formed to protrude into the sliding groove 110.

By driving the operation member 300, the operation member 300 acts on the rolling brush supporting member 700 to adjust the height of the rolling brush 200 and the rolling brush supporting member 700 relative to the ground brush housing 100, thereby adjusting the distance between the rolling brush 200 and the surface to be cleaned, selecting the appropriate distance according to different surfaces to be cleaned, adapting to different surfaces to be cleaned, and being convenient and quick to adjust without manually replacing different types of rolling brushes 200; through setting up the sliding tray 110 that extends along the direction of height of scrubbing brush casing 100, round brush 200 is through round brush support 700 along sliding tray 110 extending direction sliding connection in sliding tray 110, and adaptable different waits to clean the face, and application scope is wider.

In an exemplary embodiment, referring to fig. 5, 9 and 10, two opposite limiting blocking walls 140 are formed in the ground brush housing 100, and a sliding groove 110 is formed between the two limiting blocking walls 140. The rolling brush 200 is slidably connected between the two limiting blocking walls 140 through the rolling brush supporting member 700, and the two limiting blocking walls 140 can abut against each other, specifically, a limiting blocking wall 140 is formed on the upper housing 120 and the lower housing 130 respectively. The position of the slide groove 110 shown by the broken line box in fig. 10 is not a structure of the slide groove 110.

Specifically, the floor brush housing 100 further includes an upper blocking wall 160, a lower blocking wall 170, and a side blocking wall 150 connected between the upper blocking wall 160 and the lower blocking wall 170, the limiting blocking wall 140 is disposed on a side of the upper blocking wall 160 and the lower blocking wall 170 away from the side blocking wall 150, and the limiting blocking wall 140 and the side blocking wall 150 are parallel to each other. The rolling brush support 700 is at least partially located in the accommodating space formed by the upper blocking wall 160, the lower blocking wall 170, the side blocking wall 150 and the limiting blocking wall 140.

Further, as shown in fig. 5, 9 and 11, a limiting groove 710 is formed on the rolling brush support 700, two limiting blocking walls 140 are both slidably connected to the limiting groove 710, and the two limiting blocking walls 140 can both abut against the bottom of the limiting groove 710. Specifically, the limit groove 710 is a recess formed at the outer circumference of the rolling brush support 700. By providing the limiting groove 710, the rolling brush support 700 can be effectively prevented from deviating from the moving direction when moving. Illustratively, the limiting groove 710 on the rolling brush support 700 in the embodiment of the present utility model is circular in cross section. The sliding groove 110 includes a straight portion and semicircular portions provided at opposite ends of the straight portion.

In an exemplary embodiment, referring to fig. 2 and 3, the operation member 300 includes an operation portion 310 and an abutment portion 320 connected to the operation portion 310, and the abutment portion 320 can abut against the rolling brush support 700. The operation part 310 is driven to drive the abutting part 320 to abut against the rolling brush support 700, and the rolling brush support 700 is driven to move, so as to adjust the height of the rolling brush 200 and the rolling brush support 700 relative to the ground brush housing 100.

In one embodiment, referring to fig. 8, the abutting portion 320 is connected to one end of the operating portion 310 and is perpendicular to the operating portion 310. The floor brush housing 100 is provided with an opening, and the abutting portion 320 is disposed through the opening and is slidably connected to the floor brush housing 100. Specifically, the abutment 320 is disposed within the floor brush housing 100. The operation part 310 is disposed outside the floor brush housing 100, so that the user can conveniently drive the operation part 310 to move. Both ends of the operation portion 310 disposed opposite to each other are provided with abutting portions 320. The two abutting portions 320 are respectively abutted against the corresponding rolling brush supporting members 700. In this embodiment, the operation portion 310 and the abutment portion 320 are both moved in the height direction.

It is to be understood that: since the operation portion 310 and the abutment portion 320 are both moved in the height direction, a limiting assembly is required. That is, after the height adjustment of the roller brush 200 and the roller brush support 700 with respect to the ground brush housing 100 is completed, the height of the roller brush 200 and the roller brush support 700 with respect to the ground brush housing 100 can be defined by operating the limiting assembly. After the cleaning is completed, the limit assembly is operated to cancel the limit of the height of the rolling brush 200 and the rolling brush support 700 relative to the ground brush housing 100, and the rolling brush 200 and the rolling brush support 700 can return to the initial state under the action of the reset member 400, thereby driving the rolling brush 200 and the rolling brush support 700 to return to the initial position.

It should be noted that: the limiting assembly may be a known technology, so long as the limiting assembly can be operated to limit the height of the rolling brush 200 and the rolling brush support 700 relative to the ground brush housing 100 after the height adjustment of the rolling brush 200 and the rolling brush support 700 relative to the ground brush housing 100 is completed, and the limiting assembly is operated to cancel the limit of the height of the rolling brush 200 and the rolling brush support 700 relative to the ground brush housing 100 after the cleaning is completed.

In another embodiment, referring to fig. 2, 3, 6, 7 and 8, the abutting portion 320 is hinged to the ground brush housing 100, the operating portion 310 is slidably connected to the ground brush housing 100 and is connected to one end of the abutting portion 320 through a mating component, and the operating portion 310 is driven to move, so that one end of the abutting portion 320 can be driven to rise or fall, so as to drive the other end of the abutting portion 320 to abut against or separate from the rolling brush support 700. Specifically, the floor brush housing 100 is provided with a through operation hole, the operation portion 310 is provided with a pulling portion 330 protruding outside the floor brush housing 100, and the pulling portion 330 penetrates the operation hole, so that a user can conveniently drive the operation portion 310 to move. More specifically, the operation portion 310 moves in a straight line.

When one end of the abutting portion 320 rises, the other end of the abutting portion 320 falls. When the other end of the abutting portion 320 descends to abut against the rolling brush support member 700, the abutting portion 320 is continuously driven to ascend, so that the rolling brush support member 700 is driven to descend, and the height of the rolling brush 200 and the rolling brush support member 700 relative to the ground brush housing 100 is adjusted. When one end of the abutting portion 320 descends, the other end of the abutting portion 320 ascends, the pressure given to the rolling brush support 700 by the abutting portion 320 gradually becomes smaller, and when the pressure given to the rolling brush support 700 by the abutting portion 320 completely disappears, the rolling brush 200 and the rolling brush support 700 can automatically return to the initial state under the action of the resetting piece 400, so that the rolling brush 200 and the rolling brush support 700 are driven to automatically return to the initial positions, and automatic resetting of the rolling brush 200 and the rolling brush support 700 can be achieved.

Further, the mating assembly includes a first inclined surface 500 provided on the operation portion 310 and a second inclined surface 600 provided on the abutment portion 320, and the first inclined surface 500 and the second inclined surface 600 form a surface-to-surface mating. Specifically, the first inclined surface 500 is disposed obliquely to the upper surface of the operation portion 310. The second inclined surface 600 is inclined with respect to the lower surface of the abutting portion 320. The inclination angle and the inclination direction of the second inclined surface 600 are the same as those of the first inclined surface 500. By driving the operation portion 310 to move linearly, the first inclined surface 500 of the operation portion 310 can be driven to move relative to the second inclined surface 600 of the abutment portion 320, so as to drive the abutment portion 320 to rotate, so as to press or release the rolling brush support 700.

Still further, the operation portion 310 is further provided with a limiting portion 340 for limiting a position of the abutment portion 320 relative to the operation portion 310, so as to prevent the operation portion 310 from moving. The abutting portion 320 can abut against the stopper portion 340.

Further, the operation portion 310 is further provided with a first receiving surface 350, the abutting portion 320 is further provided with a second receiving surface 321 matched with the first receiving surface 350, the first receiving surface 350 is obliquely arranged relative to the upper surface of the operation portion 310, and the inclination angle and the inclination direction of the first receiving surface 350 are the same as those of the second receiving surface 321. When the first receiving surface 350 and the second receiving surface 321 form a surface-to-surface engagement, the abutting portion 320 does not rotate.

Referring to fig. 2, 3 and 9, the height adjusting assembly further includes a reset member 400 disposed between the ground brush housing 100 and the rolling brush support 700, wherein the reset member 400 is used for providing a reset force for making the rolling brush 200 and the rolling brush support 700 approach to an initial state. Illustratively, the reset member 400 employs a spring.

After the cleaning is completed, the rolling brush 200 and the rolling brush support 700 may return to the initial state under the action of the reset member 400, thereby driving the rolling brush 200 and the rolling brush support 700 to return to the initial position. It is to be understood that: when the operating member 300 is driven to make the driving force of the operating member 300 acting on the rolling brush support 700 disappear, the rolling brush 200 and the rolling brush support 700 can automatically return to the initial state under the action of the resetting member 400, so that the rolling brush 200 and the rolling brush support 700 are driven to automatically return to the initial positions.

It should be noted that: when it is required to switch the rolling brush 200 from the current surface to be cleaned to the next surface to be cleaned, the definition of the height of the rolling brush 200 and the rolling brush support 700 with respect to the brush housing 100 may be canceled, and the operation member 300 may be driven such that the operation member 300 acts on the rolling brush support 700. After the height of the rolling brush 200 and the rolling brush supporting member 700 relative to the ground brush housing 100 is eliminated, the resetting member 400 drives the rolling brush 200 and the rolling brush supporting member 700 to automatically return to the initial positions, and then the operating member 300 is driven, so that the operating member 300 acts on the rolling brush supporting member 700.

By arranging the reset piece 400, the reset piece 400 can enable the rolling brush 200 and the rolling brush support piece 700 to tend to be kept in an initial state, after cleaning is completed, the rolling brush 200 and the rolling brush support piece 700 can automatically return to the initial state under the action of the reset piece 400, so that the rolling brush 200 and the rolling brush support piece 700 are driven to automatically return to the initial positions, automatic reset of the rolling brush 200 and the rolling brush support piece 700 can be realized, and operation is more convenient.

In an exemplary embodiment, referring to fig. 8, a dust-proof ring 800 is further connected between the rolling brush support member 700 and the ground brush housing 100, so as to prevent dust.

The present utility model also provides a cleaning apparatus comprising the floor brush assembly 10 described above.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. Based on the embodiments of the present utility model, those skilled in the art may make other different changes or modifications without making any creative effort, which shall fall within the protection scope of the present utility model.

Claims (15)

1. A floor brush assembly, comprising:

a floor brush housing;

the rolling brush is movably arranged in the ground brush shell through a rolling brush supporting piece;

the height adjusting assembly comprises an operating piece, wherein the operating piece acts on the rolling brush supporting piece to adjust the height of the rolling brush and the height of the rolling brush supporting piece relative to the ground brush shell;

the floor brush comprises a floor brush shell, a floor brush cover and a cover, wherein a sliding groove is formed in the floor brush shell, and extends along the height direction of the floor brush shell; the rolling brush is connected in the sliding groove in a sliding manner along the extending direction of the sliding groove through the rolling brush supporting piece.

2. The floor brush assembly of claim 1, wherein two oppositely disposed limiting blocking walls are formed in the floor brush housing, and the sliding groove is formed between the two limiting blocking walls.

3. The floor brush assembly of claim 2, wherein the roll brush support member has a limiting groove formed therein, and wherein both of the limiting blocking walls are slidably coupled to the limiting groove.

4. The floor brush assembly according to claim 1, wherein the operating member includes an operating portion and an abutting portion connected to the operating portion, the abutting portion being capable of abutting the roller brush support member; the abutting part can be driven to abut against the rolling brush supporting piece by driving the operating part, and the rolling brush supporting piece can be driven to move so as to adjust the height of the rolling brush and the rolling brush supporting piece relative to the ground brush shell.

5. The floor brush assembly according to claim 4, wherein the abutting portion is connected to one end of the operating portion and is perpendicular to the operating portion; the ground brush shell is provided with an opening, and the abutting part penetrates through the opening and is in sliding connection with the ground brush shell.

6. The floor brush assembly of claim 4, wherein the operating portion is further provided with a limiting portion for limiting a position of the abutment portion relative to the operating portion.

7. The floor brush assembly according to claim 4, wherein the floor brush housing is provided with a through operation hole, the operation part is provided with a pulling part protruding outside the floor brush housing, and the pulling part is provided through the operation hole.

8. The floor brush assembly according to claim 4, wherein the abutting portion is hinged to the floor brush housing, the operating portion is slidably connected to the floor brush housing, and is connected to one end of the abutting portion through a matching assembly, and one end of the abutting portion can be driven to ascend or descend by driving the operating portion to move, so that the other end of the abutting portion is driven to abut against or separate from the rolling brush supporting member.

9. The floor brush assembly of claim 8, wherein the mating assembly includes a first angled surface disposed on the operating portion and a second angled surface disposed on the abutment portion, the first angled surface and the second angled surface forming a surface mating.

10. The floor brush assembly according to claim 9, wherein the first inclined surface is inclined with respect to an upper surface of the operation portion;

and/or the second inclined surface is arranged obliquely relative to the lower surface of the abutting part.

11. The floor brush assembly of claim 9 or 10, wherein the second inclined surface has the same inclination angle and inclination direction as the first inclined surface.

12. The floor brush assembly of claim 4, wherein the operating portion further includes a first receiving surface, and the abutment portion further includes a second receiving surface that mates with the first receiving surface, and wherein the abutment portion does not rotate when the first receiving surface mates with the second receiving surface to form a surface.

13. The floor brush assembly of claim 1, wherein the height adjustment assembly further comprises a return member disposed between the floor brush housing and the roller brush support member for providing a return force that tends to the roller brush and the roller brush support member to an initial state.

14. The floor brush assembly of claim 1, wherein a dust collar is also connected between the roll brush support and the floor brush housing.

15. A cleaning appliance comprising a floor brush assembly as claimed in any one of claims 1 to 14.