CN216702468U - Scrubbing brush subassembly and scrubber - Google Patents

Abstract

The application relates to a floor brush assembly, including casing, round brush spare, fan, take out dirty pipeline and drive assembly, the axial relative both ends of round brush spare respectively with the rotatable connection of casing, the round brush spare can be for casing along self axial rotation promptly. The fan is provided with an air suction pipe and an air outlet pipe, the air suction pipe is communicated with the sewage pumping pipeline and provides suction force for the sewage pumping pipeline, so that the dirt at the cleaning position of the path of the floor brush assembly is sucked into the sewage pumping pipeline. The transmission assembly is provided with a rotating part in transmission connection with the rolling brush part, the rotating part is provided with a windward side facing the air outlet pipe, and the fan blows air to the windward side of the rotating part through the air outlet pipe so as to drive the rotating part to rotate and drive the rolling brush part to rotate around the self axial direction, so that the rotation of the rolling brush is realized. So, need not extra motor or other electrical components that set up again, when having guaranteed clean effect for the scrubbing brush subassembly uses lightly, and reduces thereby the electric load has prolonged the time of endurance.

Description

Scrubbing brush subassembly and scrubber

Technical Field

The application relates to the technical field of cleaning equipment, in particular to a floor brush assembly and a floor washing machine.

Background

The change of the existing social environment and the pursuit of people to health are accompanied by the improvement of living standard, the requirement of people to the family living environment is higher and higher, in order to better clean the dirty ground and ensure the cleaning quality, the floor cleaning machine integrating the effects of cleaning the ground, mopping the ground and absorbing dust is appeared in the market, and the floor cleaning machine is obvious in cleaning and convenient to use.

One of the key parts of the floor washing machine is a floor brush assembly, the floor washing machine drives a rolling brush in the floor brush assembly to rotate through a motor, the rolling brush is in close contact with the floor, floor stains are cleaned, and the stains are sucked into a sewage tank through negative pressure generated by a fan so as to achieve the purpose of cleaning the floor.

However, the motor is additionally arranged on the floor brush assembly, so that the net weight of the floor washing machine is increased, and the floor washing machine is labor-consuming to use. And the motor is used as an electric element and needs to be driven by electric power, and meanwhile, the endurance time of the floor washing machine is also reduced.

Disclosure of Invention

Based on this, this application uses the problem hard and that the time of endurance is short to current floor scrubber, has provided a scrubbing brush subassembly and floor scrubber, and this scrubbing brush subassembly and floor scrubber have and use light and the long technological effect of time of endurance.

A floor brush assembly, comprising:

a housing;

the two opposite axial ends of the rolling brush piece are respectively rotatably connected with the shell;

the fan is provided with an air suction pipe and an air outlet pipe, and the air suction pipe is communicated with the sewage suction pipeline and provides suction force for the sewage suction pipeline;

the transmission assembly is provided with a rotating part in transmission connection with the rolling brush piece, and the rotating part is provided with a windward side facing the air outlet pipe;

the fan blows air to the windward side of the rotating part through the air outlet pipe so as to drive the rotating part to rotate and drive the rolling brush piece to rotate around the self axial direction.

In this way, the fan drives the rolling brush piece in the floor brush assembly to rotate, so that the rolling brush piece is in close contact with the position to be cleaned to scrub stains; meanwhile, the fan provides suction force to suck the scrubbed stains into the stain pumping pipeline, so that the aim of cleaning the position to be cleaned is fulfilled. Need not extra again and set up motor or other electrical elements, also reduced the electrical elements in the scrubbing brush subassembly when having alleviateed the weight of scrubbing brush subassembly, when having guaranteed the clean effect of scrubbing brush subassembly for thereby the scrubbing brush subassembly uses lightly, and reduces electrical load and prolonged the time of endurance.

In one embodiment, the transmission assembly further comprises a containing piece, the containing piece is assembled in the shell and internally provided with a cavity, the air outlet pipe is communicated with the cavity, and the rotating part is arranged in the cavity and is rotatably connected with the containing piece;

the fan blows air into the cavity through the air outlet pipe and blows the air to the windward side.

So, form the setting of airtight cavity through the holding piece, can realize the high-efficient utilization of tuber pipe air-out, guarantee that rotation portion can effectively rotate.

In one embodiment, the rotating part extends along the axial direction of the rolling brush piece, and one axial end of the rotating part penetrates through the accommodating piece to be in transmission connection with the rolling brush piece;

the fan drives the rotating part to rotate around the self axial direction.

So, realized the synchronous and equidirectional circular motion of rotation portion and round brush spare, improved transmission efficiency, and made the operation of round brush spare stable.

In one embodiment, the accommodating part is provided with an air inlet and an air outlet which are communicated with the cavity, the air outlet pipe is assembled at the air inlet, and the cavity is communicated with the outside of the cavity through the air outlet;

and the air flow entering the cavity through the air inlet is discharged out of the cavity through the air outlet after driving the rotating part to rotate around the self axial direction.

So, form gaseous convection current between air inlet and gas outlet, guarantee to rotate the portion and can continue the operation to the continuous rotation of drive brush spare.

In one embodiment, the accommodating member extends cylindrically in the axial direction of the rolling brush member.

In one embodiment, the rotating part comprises a main shaft and a rotating impeller, the main shaft and the rotating impeller are arranged in the cavity, two opposite axial ends of the main shaft are rotatably connected with the accommodating part, and the rotating impeller is sleeved on the main shaft and is provided with the windward side;

and one axial end of the main shaft penetrates through the cavity to be in transmission connection with the rolling brush piece, and the fan blows air to the windward side to drive the rotary impeller to drive the main shaft to rotate along the axial direction of the main shaft.

So, the fan blows to the cavity through the play tuber pipe, directly beats on the windward side of rotatory impeller to the relative holding of drive main shaft of rotatory impeller rotates along self axial, because the axial one end of main shaft is worn out the cavity and is connected with the transmission of round brush spare, so also can drive the synchronous rotation of round brush spare when rotatory impeller pivoted.

In one embodiment, the transmission assembly further comprises a speed reduction device, wherein the speed reduction device is provided with a high-speed end and a low-speed end, and the high-speed end is in transmission connection with the low-speed end;

and one axial end of the rotating part is in transmission connection with the high-speed end, and the low-speed end is in transmission connection with one axial end of the rolling brush piece.

Thus, through the bidirectional connection of the speed reducer, the speed is reduced, and the output torque of the rolling brush piece in actual operation is improved. Because the rotating part is directly driven by the motor, the rotating speed is high, and the rotating speed of the rolling brush piece is reduced through the speed reducing effect of the speed reducing and reducing device, so that the position to be cleaned is slowly cleaned.

In one embodiment, the speed reduction device is a speed reduction box.

In one embodiment, the floor brush assembly further comprises a rolling wheel rotatably coupled to the housing;

and the rolling wheel is positioned at the rear side of the rolling brush piece in the advancing direction of the rolling brush piece.

Therefore, the rolling wheel is prevented from contacting the dirty surface firstly to influence the cleaning effect of the rolling brush piece. When external force acts on the floor brush assembly, the rolling wheel drives the rolling brush assembly to move, and therefore cleaning at different positions is achieved.

According to another aspect of the present application, there is provided a floor scrubber comprising the floor brush assembly of any of the above embodiments.

So, the floor cleaning machine need not extra motor or other electric elements that set up again, has also reduced the electric elements in the floor cleaning machine when having alleviateed the weight of floor cleaning machine complete machine, when having guaranteed clean effect for the floor cleaning machine uses lightly, and thereby reduces electric load and obtain longer duration.

Above-mentioned scrubbing brush subassembly, including casing, round brush spare, fan, take out dirty pipeline and drive assembly, the axial relative both ends of round brush spare respectively with the rotatable connection of casing, the round brush spare can be for casing along self axial rotation promptly. The fan is provided with an air suction pipe and an air outlet pipe, the air suction pipe is communicated with the sewage pumping pipeline and provides suction force for the sewage pumping pipeline, so that dirt at a position to be cleaned (such as the ground) of the path of the floor brush assembly is sucked into the sewage pumping pipeline. The transmission assembly is provided with a rotating part in transmission connection with the rolling brush part, the rotating part is provided with a windward side facing the air outlet pipe, and the fan blows air to the windward side of the rotating part through the air outlet pipe so as to drive the rotating part to rotate and drive the rolling brush part to rotate around the self axial direction, so that the rotation of the rolling brush is realized. In this way, the fan drives the rolling brush piece in the floor brush assembly to rotate, so that the rolling brush piece is in close contact with the position to be cleaned to scrub stains. Meanwhile, the fan provides suction force to suck the scrubbed stains into the stain pumping pipeline, so that the aim of cleaning the position to be cleaned is fulfilled. Need not extra motor or other electrical elements that set up again, also reduced the electrical elements in the scrubbing brush subassembly when having alleviateed the weight of scrubbing brush subassembly, when having guaranteed the clean effect of scrubbing brush subassembly for the scrubbing brush subassembly uses lightly, and thereby reduces electrical load and has prolonged the time of endurance.

Drawings

FIG. 1 is a schematic structural view of a floor brush assembly according to an embodiment of the present disclosure;

fig. 2 is a first perspective view of the floor brush assembly shown in fig. 1.

Reference numerals: 100. a floor brush assembly; 10. a housing; 20. a rolling brush member; 31. an air outlet pipe; 40. a sewage pumping pipeline; 50. a transmission assembly; 51. an accommodating member; 511. a cavity; 513. an air inlet; 514. an air outlet; 52. A rotating part; 521. a main shaft; 522. rotating the impeller; 53. a reduction gear; 60. a rolling wheel.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "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 present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

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

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

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

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

Referring to fig. 1 to 2, an embodiment of the present application provides a floor brush assembly 100, which includes a housing 10, a rolling brush 20, a blower, a dirt suction pipe 40 and a transmission assembly 50, and is used for cleaning dirt on a place to be cleaned, such as a floor.

Specifically, opposite ends of the rolling brush member 20 in the axial direction are rotatably connected to the housing 10, respectively, that is, the rolling brush member 20 is capable of rotating in its own axial direction with respect to the housing 10. The blower has an air suction pipe (not shown) and an air outlet pipe 31, the air suction pipe is communicated with the dirt suction pipe 40 and provides suction force to the dirt suction pipe 40, so that dirt on a position to be cleaned (such as the floor) on the way of the floor brush assembly 100 is sucked into the dirt suction pipe 40. The transmission assembly 50 is provided with a rotating part 52 in transmission connection with the rolling brush part 20, the rotating part 52 is provided with a windward side facing the air outlet pipe 31, and the fan blows air to the windward side of the rotating part 52 through the air outlet pipe 31 so as to drive the rotating part 52 to rotate and drive the rolling brush part 20 to rotate around the self axial direction, so that the rotation of the rolling brush is realized.

In this way, the fan drives the rolling brush member 20 in the floor brush assembly 100 to rotate, so as to scrub stains by contacting with the position to be cleaned at a short distance; meanwhile, the fan provides suction force to suck the scrubbed dirt into the dirt suction pipeline 40, so that the aim of cleaning the position to be cleaned is fulfilled. Need not extra motor or other electrical components that set up again, also reduced the electrical components in the scrubbing brush subassembly 100 when having lightened the weight of scrubbing brush subassembly 100, when having guaranteed the clean effect of scrubbing brush subassembly 100 for scrubbing brush subassembly 100 uses lightly, and reduces thereby the electric load prolonged the time of endurance.

Understandably, this application is through carrying out make full use of to the fan, and on the one hand the fan passes through the breathing pipe and provides suction for taking out dirty pipeline 40, and on the other hand the fan is bloied to rotation portion 52 through going out tuber pipe 31 to drive brush 20 rotates, has avoided additionally setting up motor drive brush 20 again, thereby has reduced the part volume, makes scrubbing brush subassembly 100 simple structure when having realized the lightweight.

In one embodiment, the floor brush assembly 100 includes a receiving member 51, the receiving member 51 is mounted in the housing 10 and has a cavity 511 therein, and the air outlet pipe 31 is communicated with the cavity 511, that is, the air blown from the air outlet pipe 31 is directly discharged into the cavity 511. The rotating portion 52 is disposed in the cavity 511 and rotatably connected to the accommodating member 51, and the wind from the wind outlet pipe 31 toward the cavity 511 directly blows toward the windward side, so that the rotating portion 52 is driven by the airflow to rotate relative to the accommodating member 51. Meanwhile, the rotating part 52 drives the rolling brush part 20 to rotate around the self axial direction, so that the rolling brush part 20 rotates. The accommodating piece 51 forms the closed cavity 511, so that the air outlet of the air outlet pipe 31 can be efficiently utilized, and the rotating part 52 can effectively rotate.

Specifically, the air blown out by the fan through the air outlet pipe 31 is high-pressure air flow, and in the cavity 511, the high-pressure air flow directly hits the windward side, so that the rotating part 52 is driven to rotate by force, and the position to be cleaned is scrubbed.

In one embodiment, the rotating portion 52 extends along the axial direction of the rolling brush member 20, that is, the rotating portion 52 is disposed parallel to the rolling brush member 20, and one axial end of the rotating portion 52 penetrates through the accommodating member 51 and is in transmission connection with the rolling brush member 20. The fan blows air to the windward side through the air outlet pipe 31 and then drives the rotating part 52 to rotate around the axial direction of the fan. Meanwhile, the rotating part 52 drives the rolling brush part 20 to rotate around the self axial direction, so that the synchronous and equidirectional circular motion of the rotating part 52 and the rolling brush part 20 is realized, the transmission efficiency is improved, and the rolling brush part 20 is stable in operation.

In one embodiment, the accommodating member 51 has an air inlet 513 and an air outlet 514 communicated with the cavity 511, the air outlet pipe 31 is assembled on the air inlet 513, and the cavity 511 is communicated with the outside of the cavity 511 through the air outlet 514. The air flow entering the chamber 511 through the air inlet 513 is discharged out of the chamber 511 through the air outlet 514 after the rotating portion 52 is driven to rotate axially around itself. Thereby forming a convection flow of air between the air inlet 513 and the air outlet 514 and ensuring a continuous operation of the rotating portion 52, thereby driving a continuous rotation of the rolling brush member 20.

Specifically, the accommodating part 51 extends in a cylindrical shape along the axial direction of the rolling brush part 20, that is, there is no corner in the cavity 511, so that the rotation of the rotating part 52 is not disturbed by the cavity wall of the accommodating part 51, and the rotating part 52 can smoothly flow.

In one embodiment, the rotating portion 52 includes a main shaft 521 and a rotating impeller 522 disposed in the cavity 511, two opposite axial ends of the main shaft 521 are rotatably connected to the accommodating component 51, and the rotating impeller 522 is sleeved on the main shaft 521 and has a windward surface. And one axial end of the main shaft 521 penetrates out of the cavity 511 to be in transmission connection with the rolling brush piece 20. The blower blows air into the cavity 511 through the air outlet pipe 31 and directly hits on the windward side of the rotary impeller 522, so as to drive the rotary impeller 522 to drive the main shaft 521 to rotate axially relative to the accommodating part 51, and since the axial end of the main shaft 521 penetrates out of the cavity 511 and is in transmission connection with the rolling brush part 20, the rolling brush part 20 can be driven to synchronously rotate while the rotary impeller 522 rotates.

Further, the shape of the rotary impeller 522 may have various configurations, and may have a general blade form to smoothly rotate in the cylindrically extending receiving member 51, or may have other configurations. The purpose of the rotation of the rolling brush member 20 is to convert the air pressure energy of the high pressure air flow blown by the fan into the rotational kinetic energy of the rotary impeller 522.

In one embodiment, the transmission assembly 50 further includes a reduction gear 53, the reduction gear 53 having a high speed end and a low speed end, the high speed end being drivingly connected to the low speed end. One axial end of the rotating part 52 is in transmission connection with the high-speed end, the low-speed end is in transmission connection with one axial end of the rolling brush piece 20, and the speed reduction is realized and the output torque of the rolling brush piece 20 in the actual operation is improved through the bidirectional connection of the speed reducing device 53. Since the rotating part 52 is directly driven by the motor, the rotating speed is fast, and the rotating speed of the rolling brush member 20 is reduced by the speed reduction action of the speed reduction device 53, so that the position to be cleaned is slowly cleaned.

In some embodiments, the reduction unit 53 is a reduction box, and the reduction box may adopt a planetary gear and a belt pulley to form a two-stage reduction. The planetary gear has an input gear and an output gear, one axial end of the rolling brush member 20 has a linkage gear, one axial end of the main shaft 521 is in transmission connection with the input gear, and the output gear is in transmission connection with the linkage gear through a belt. When the rotating part 52 starts to rotate, the main shaft 521 drives the input gear to rotate, the input gear transmits power to the output gear, and the output gear transmits power to the interlocking gear through the belt, so that the rolling brush part 20 rotates. Meanwhile, the radius of the root circle of the output gear is smaller than that of the linkage gear, the output gear forms a small gear, the linkage gear forms a large gear, and the small gear drives the large gear to reduce the rotating speed of the large gear, improve the output torque in actual operation and realize the slow cleaning of the rolling brush piece 20.

In other embodiments, the structure of the reduction box may be in other forms, as long as it can convert the high-speed rotation of the rotary impeller 522 into the low-speed rotation of the rolling brush member 20, which is within the protection scope of the present application and is not limited herein.

In one embodiment, the floor brush assembly 100 further comprises a rolling wheel 60, and the rolling wheel 60 is rotatably coupled to the housing 10. And in the advancing direction of the rolling brush part 20, the rolling wheel 60 is positioned at the rear side of the rolling brush part 20, so that the rolling wheel 60 is prevented from contacting with dirt firstly to influence the cleaning effect of the rolling brush part 20. When an external force is applied to the floor brush assembly 100, the rolling wheel 60 drives the rolling brush member 20 to move, thereby realizing cleaning at different positions.

In this application, go to drive brush spare 20 through application fan exhaust as the wind pressure, reach the purpose of saving a motor, the kinetic energy of effectual utilization fan has improved complete machine efficiency, has reduced the net weight of complete machine, and lightweight design convenience of customers uses. In addition, one motor is saved, an electrical load can be omitted, and the cost is reduced while the endurance time is prolonged.

According to another aspect of the present application, there is also provided a floor washing machine including the floor brush assembly 100 provided in any of the above embodiments.

Specifically, the suction pipe communicates with the soil suction pipe 40 through the suction pipe of the blower and the air outlet pipe 31 and provides a suction force to the soil suction pipe 40, thereby sucking soil at a position to be cleaned by the floor brush assembly 100 into the soil suction pipe 40 during the floor washing process. The fan blows air to the windward side of the rotating part 52 through the air outlet pipe 31 to drive the rotating part 52 to rotate and drive the rolling brush piece 20 to rotate around the self axial direction, so that the rotation of the rolling brush is realized. In this way, the fan drives the rolling brush member 20 in the floor brush assembly 100 to rotate, so as to scrub stains by contacting with the position to be cleaned at a short distance; meanwhile, the fan provides suction force to suck the scrubbed dirt into the dirt suction pipeline 40, so that the aim of cleaning the position to be cleaned is fulfilled. Need not extra motor or other electrical components that set up again, also reduced the electrical components in the scrubber when having alleviateed the weight of scrubber complete machine, when having guaranteed clean effect for the scrubber uses lightly, thereby reduces electrical load and obtains longer duration.

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

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

Claims (10)

1. A floor brush assembly, comprising:

a housing (10);

the two opposite axial ends of the rolling brush piece (20) are respectively connected with the shell (10) in a rotatable way;

the fan and the sewage pumping pipeline (40), the fan is provided with an air suction pipe and an air outlet pipe (31), the air suction pipe is communicated with the sewage pumping pipeline (40) and provides suction force for the sewage pumping pipeline (40);

the transmission assembly (50) is provided with a rotating part (52) in transmission connection with the rolling brush piece (20), and the rotating part (52) is provided with a windward side facing the air outlet pipe (31);

the fan blows air to the windward side of the rotating part (52) through the air outlet pipe (31) so as to drive the rotating part (52) to rotate and drive the rolling brush piece (20) to rotate around the axial direction of the rolling brush piece.

2. The floor brush assembly according to claim 1, wherein the transmission assembly (50) further comprises a receiving member (51), the receiving member (51) is assembled in the housing (10) and has a cavity (511) therein, the air outlet pipe (31) is communicated with the cavity (511), and the rotating portion (52) is arranged in the cavity (511) and is rotatably connected with the receiving member (51);

the fan blows air into the cavity (511) through the air outlet pipe (31) and blows the air to the windward side.

3. A floor brush assembly according to claim 2, characterized in that the rotating part (52) extends in the axial direction of the rolling brush member (20), and one axial end of the rotating part (52) penetrates through the accommodating member (51) to be in transmission connection with the rolling brush member (20);

the fan drives the rotating part (52) to rotate around the axial direction of the fan.

4. A floor brush assembly according to claim 3, characterized in that the housing (51) has an air inlet (513) and an air outlet (514) communicating with the chamber (511), the air outlet duct (31) being fitted to the air inlet (513), the chamber (511) communicating with the outside of the chamber (511) through the air outlet (514);

and the air flow entering the cavity (511) through the air inlet (513) is discharged out of the cavity (511) through the air outlet (514) after the rotating part (52) is driven to rotate around the self axial direction.

5. A floor brush assembly according to claim 3, characterized in that the receptacle (51) extends cylindrically in the axial direction of the roller brush element (20).

6. The floor brush assembly according to claim 5, wherein the rotating portion (52) comprises a main shaft (521) and a rotating impeller (522) arranged in the cavity (511), two opposite axial ends of the main shaft (521) are rotatably connected with the accommodating part (51), and the rotating impeller (522) is sleeved on the main shaft (521) and has the windward side;

and one axial end of the main shaft (521) penetrates through the cavity (511) to be in transmission connection with the rolling brush piece (20), and the fan blows air to the windward side to drive the rotary impeller (522) to drive the main shaft (521) to rotate along the axial direction of the main shaft.

7. A floor brush assembly according to claim 3, characterized in that the transmission assembly (50) further comprises a speed reduction device (53), the speed reduction device (53) having a high speed end and a low speed end, the high speed end being in driving connection with the low speed end;

and one axial end of the rotating part (52) is in transmission connection with the high-speed end, and the low-speed end is in transmission connection with one axial end of the rolling brush piece (20).

8. A floor brush assembly according to claim 7, characterized in that the speed reduction device (53) is a speed reduction box.

9. A floor brush assembly according to claim 1, wherein the floor brush assembly (100) further comprises a roller wheel (60), the roller wheel (60) being rotatably coupled to the housing (10);

and the rolling wheel (60) is positioned at the rear side of the rolling brush piece (20) in the advancing direction of the rolling brush piece (20).

10. A floor washing machine, characterized in that it comprises a floor brush assembly (100) according to any of claims 1-9.

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