CN118216842A - Floor brush structure and cleaning equipment - Google Patents

Abstract

The application provides a floor brush structure and cleaning equipment, wherein the floor brush structure comprises a cyclone separation unit (100), a shell (200) and a rolling brush assembly (300), and an air duct (210) is arranged on the shell (200); the cyclone separation unit (100) comprises a separation box (110) and a separation assembly (120), wherein the separation box (110) is communicated with the air duct (210); the separation assembly (120) rotates relative to the separation tank (110) to separate fluid entering the separation tank (110) through the air duct (210) into a gas and a solid-liquid mixture, the separation tank (110) being configured to receive the solid-liquid mixture and to expel the gas. The ground brush structure provided by the application can prevent water from entering the host.

Description

Floor brush structure and cleaning equipment

Technical Field

The application relates to the technical field of cleaning devices, in particular to a floor brush structure and cleaning equipment.

Background

With the development of technology and the improvement of living standard, household cleaning devices such as dust collectors, floor washers and the like are becoming more popular, and functions are becoming more and more. Taking a floor washing machine as an example, the floor washing machine has a dust collection function and a floor mopping function.

In the related art, the cleaning apparatus may include a main body having a suction assembly and a dust collecting assembly thereon, and a brush assembly for cleaning a surface to be cleaned, the suction assembly generating negative pressure to collect foreign substances such as dust on the ground into the dust collecting assembly through an air duct on the brush assembly.

But sewage on the ground easily enters the host machine, thereby affecting the performance of the electric devices in the host machine.

Disclosure of Invention

The application provides a floor brush structure and cleaning equipment, which can prevent water from entering a host.

In order to achieve the above purpose, the application provides a floor brush structure, which comprises a cyclone separation unit, a shell and a rolling brush assembly, wherein the shell is provided with an air duct, and the air duct is provided with a dirt sucking port;

the cyclone separation unit comprises a separation box and a separation assembly arranged in the separation box, the rolling brush assembly and the separation box are arranged on the shell, and the separation box is communicated with the air duct;

The separation assembly rotates relative to the separation box to separate fluid entering the separation box through the air duct into gas and solid-liquid mixture, and the separation box is used for containing the solid-liquid mixture and discharging the gas. The floor brush structure is provided with the cyclone separation unit, the cyclone separation unit comprises a separation box and a separation assembly, and the separation assembly is positioned in the separation box. The separation assembly rotates relative to the separation tank under suction provided by the main machine of the cleaning apparatus, and fluid enters the separation tank through the air duct. Under the action of the rotation of the separation assembly, the fluid is separated into gas and a solid-liquid mixture, the solid-liquid mixture is thrown into the separation box, and the gas is discharged into a main machine of the cleaning equipment through the separation box. Therefore, water is prevented from entering the host, and the suction assembly or the circuit board and other electrical devices in the host are damaged and cannot be used normally.

In one possible implementation manner, the application provides a ground brush structure, and the separation assembly comprises a centrifugal fan and a power fan, wherein the centrifugal fan and the power fan are coaxially connected, the power fan drives the centrifugal fan to rotate, and the centrifugal fan separates fluid into gas and solid-liquid mixture.

In one possible implementation manner, the floor brush structure provided by the application comprises a box body and a box cover, wherein the box cover is arranged on the box body;

The centrifugal fan is located the box, has the installation cavity with box intercommunication in the case lid, and the power fan is located interior installation cavity. In this way, the power fan and the centrifugal fan may be separated by the case and the case cover, so that the fluid, after being separated by the centrifugal fan, enters the case cover and is discharged through the case cover.

In one possible implementation manner, the ground brush structure provided by the application, the separation assembly further comprises a guide piece, and the guide piece is positioned in the box body;

the guide member is arranged between the centrifugal fan and the box cover in a blocking way so as to guide the fluid at the top of the centrifugal fan to the side of the centrifugal fan.

In one possible implementation manner, the floor brush structure provided by the application has the advantages that the guide piece is an anti-reversing fan, the anti-reversing fan is coaxially connected with the centrifugal fan, and the anti-reversing fan and the centrifugal fan rotate in the same direction;

The anti-reverse fan is positioned between the centrifugal fan and the power fan. The anti-reversing fan and the centrifugal fan rotate in the same direction so as to guide the fluid above the separation assembly to the side of the separation assembly, thereby avoiding the fluid from directly entering the installation cavity through the upper part of the separation assembly.

In one possible implementation manner, the floor brush structure provided by the application is characterized in that the box body is provided with an air inlet pipe communicated with the box body, the air inlet pipe is communicated with the air duct, and the box cover is internally provided with an air outlet pipe communicated with the mounting cavity;

the air inlet pipe and the air outlet pipe are respectively positioned at two opposite sides of the centrifugal fan. According to the application, the air inlet pipe is arranged, and the air channel is communicated with the box body through the air inlet pipe, so that the box body is in butt joint with the air channel, and fluid can smoothly enter the box body. An air outlet pipe is arranged and is used for being communicated with the suction assembly so as to discharge the separated gas out of the separation box through the air outlet pipe. The air inlet pipe and the air outlet pipe are respectively arranged on two opposite sides of the centrifugal fan, so that the air inlet pipe and the air outlet pipe are conveniently distributed, and the mutual interference of the air inlet pipe and the air outlet pipe can be avoided.

In one possible implementation manner, the floor brush structure provided by the application has the advantages that the box body is barrel-shaped, and the air inlet pipe is tangent to the box body. In this way, the flow direction of the fluid can be controlled through the air inlet pipe, so that the fluid enters the inner side wall of the box body through the air inlet pipe.

In one possible implementation, the application provides a floor brush structure, wherein the rotation direction of the centrifugal fan is consistent with the flow direction of the fluid entering the separation tank. Therefore, when the centrifugal fan rotates, the interference to the flow direction of the fluid entering the box body is avoided, so that the fluid can smoothly enter the box body and is separated under the driving of the rotation of the centrifugal fan.

In a possible implementation manner, in the floor brush structure provided by the application, the centrifugal fan is bowl-shaped, the bowl opening of the centrifugal fan faces the box cover, the side surface of the centrifugal fan is formed by uniformly and alternately arranging a plurality of support rods, the support rods incline from the bowl bottom of the centrifugal fan to the bowl opening of the centrifugal fan, and the inclination direction of the support rods is consistent with the rotation direction of the power fan. Through setting up the inclination of bracing piece and the rotation direction unanimity of power fan, each bracing piece can stir the air flow in rotatory in-process, gets away from centrifugal fan rotation center's position with fluid throwing to can accelerate the fluid that gets into in the box.

In one possible implementation manner, the floor brush structure provided by the application is characterized in that the side walls of the anti-reversing fan are uniformly provided with a plurality of guide ribs at intervals, the guide ribs are obliquely arranged, and the oblique direction of the guide ribs is consistent with that of the support rod. In this way, the fluid above the separation assembly is guided to the side of the separation assembly by the guide rib during the process of preventing the reverse fan from rotating.

In one possible implementation manner, the floor brush structure provided by the application comprises a box cover body, wherein the surface of the box cover body facing the centrifugal fan is provided with a groove, and the groove protrudes towards one side facing away from the centrifugal fan;

The guide piece is positioned in the groove, the bowl opening of the centrifugal fan surrounds the periphery of the notch of the groove, and the end part of the guide piece is inserted into the centrifugal fan. According to the application, the end part of the guide piece is inserted into the centrifugal fan, so that the side surface of the guide piece seals the gap between the bowl opening of the centrifugal fan and the surface of the box cover body facing the centrifugal fan, and fluid is prevented from directly entering the centrifugal fan through the bowl opening of the centrifugal fan.

In a possible implementation manner, the floor brush structure provided by the application is provided with the air guide component in the groove, the bottom of the groove is provided with the communication hole, the communication hole is adjacent to the air outlet pipe, and the air guide component is communicated with the mounting cavity through the communication hole, so that the air sequentially passes through the centrifugal fan, the guide piece and the mounting cavity to enter the air outlet pipe.

In one possible implementation manner, the floor brush structure provided by the application comprises a check ring, a support column and a guide piece, wherein the side wall of the anti-reversing fan is positioned between the groove and the check ring, the support column is arranged in the check ring, and the support column and the centrifugal fan are coaxially arranged;

the guide piece is connected between the retainer ring and the support column in an inclined mode, the inclined direction of the guide piece is consistent with that of the support rod, and the end portion of the guide piece is connected with the inner wall of the communication hole.

In one possible implementation manner, in the floor brush structure provided by the application, the surface of the box cover body, which faces away from the centrifugal fan, is provided with the supporting part, and the supporting part and the box cover body jointly form the installation cavity and the air outlet pipe;

the air outlet pipe is provided with an air outlet which is positioned below the mounting cavity.

In one possible implementation manner, the ground brush structure provided by the application further comprises a mounting shaft, wherein the mounting shaft is inserted on the support column, and the centrifugal fan, the power fan and the anti-reverse fan are sleeved on the mounting shaft and are fixedly connected with the mounting shaft.

In one possible implementation manner, the floor brush structure provided by the application is provided with the mounting hole on the supporting part, the box cover further comprises a cover body, the cover body is arranged on the mounting hole in a covering manner, and the cover body is positioned above the power fan. The cover is opened to expose the installation cavity, thereby facilitating installation or maintenance of the power fan in the installation cavity.

In one possible implementation manner, the floor brush structure provided by the application has a bearing in at least one of the cover body and the support column, and the bearing is sleeved on the mounting shaft. Thus, the rotational speeds of the centrifugal fan, the power fan and the reverse-preventing fan can be increased under a smaller suction force.

In one possible implementation manner, the floor brush structure provided by the application is characterized in that the shell is provided with the mounting groove, the box body is detachably connected with the mounting groove, and the box cover is detachably connected with the box body. Thus, the separation tank can be taken off the shell and the tank cover is opened, so that the collected solid-liquid mixture in the tank body can be poured, and the separation tank can be recycled.

In one possible implementation, the application provides a floor brush structure, wherein the floor brush assembly comprises at least one floor brush for wet mopping, and the floor brush is rotatably arranged on the shell. The floor is wet-towed by the floor-mopping rolling brush, so that stubborn stains on the floor are cleaned.

In one possible implementation manner, the floor brush structure provided by the application comprises a floor mopping rolling brush and a dust collection rolling brush, wherein the floor mopping rolling brush and the dust collection rolling brush are rotatably arranged on a shell, the dust collection rolling brush is used for dry mopping, the dust collection rolling brush is positioned in front of the floor mopping rolling brush, and an air duct is positioned between the floor mopping rolling brush and the dust collection rolling brush;

The shell is provided with a water guide component which is communicated with the air duct so as to guide the sewage on the mopping rolling brush to the air duct. Thus, the sewage on the mopping rolling brush can be collected into the cyclone separation unit for separation through the air duct. Therefore, the sewage residue on the ground is reduced, and the experience of a user is improved.

In a possible implementation manner, the ground brush structure provided by the application is characterized in that the water guide component comprises a connecting pipe, a water receiving piece and a scraping strip, wherein the water receiving piece is arranged in the shell, the water outlet end of the water receiving piece is communicated with the air duct through the connecting pipe, and the water inlet end of the water receiving piece faces the ground-mopping rolling brush;

The scraping strip is arranged above the water inlet end of the water receiving piece and in interference fit with the mopping rolling brush. Sewage on the floor mopping rolling brush is scraped off by the scraping strip, enters the water receiving piece along the scraping strip, is guided into the air duct by the connecting pipe, and is sucked into the separating box for separation.

In one possible implementation manner, the ground brush structure provided by the application further comprises a poking piece, wherein the poking piece is arranged below the water inlet end of the water receiving piece, and the poking piece is in contact with the ground-mopping rolling brush. The solid garbage on the floor mopping rolling brush can be pulled down through the pulling sheet, so that the blockage of the water inlet end of the water receiving piece caused by the solid garbage is prevented.

In one possible implementation manner, the floor brush structure provided by the application further comprises a liquid supply assembly, wherein the liquid supply assembly comprises a liquid storage tank, a driving piece and a water spraying piece, and the liquid storage tank is arranged on the shell;

the water spraying piece and the driving piece are positioned in the shell, the water spraying piece is connected with the liquid storage tank through the driving piece, the water spraying piece is positioned above the scraping strip, and the water spraying piece is used for spraying liquid to the mopping rolling brush. The mopping rolling brush rotates to drive the liquid to rotate and rub against the ground, so that stains adhered on the ground are wiped off.

In one possible implementation, the floor brush structure provided by the application has the advantages that the dust collection rolling brush rotates anticlockwise, the floor mopping rolling brush rotates clockwise, and the liquid supply assembly and the water guide assembly are positioned between the dust collection rolling brush and the floor mopping rolling brush. Therefore, the structure of the ground brush structure is compact, light and flexible.

The application also provides cleaning equipment which comprises a host machine and any floor brush structure, wherein the floor brush structure is connected with the host machine.

The construction of the present application and other application objects and advantages thereof will be more readily understood from the description of the preferred embodiment taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following descriptions are some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural diagram of a ground brush structure according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a floor brush structure according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a separation assembly in a floor brush structure according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a portion of the structure of FIG. 3;

FIG. 5 is a schematic view of the internal structure of FIG. 3;

FIG. 6 is a schematic view of the centrifugal fan of FIG. 3;

FIG. 7 is a schematic view of the guide of FIG. 3;

FIG. 8 is a schematic diagram of a portion of the structure of FIG. 3;

FIG. 9 is an exploded view of FIG. 3;

FIG. 10 is a partial exploded view of FIG. 1;

FIG. 11 is a schematic diagram of a second floor brush structure according to an embodiment of the present application;

FIG. 12 is a schematic view of the internal structure of FIG. 1;

FIG. 13 is an enlarged view of FIG. 12 at A;

FIG. 14 is an enlarged view at B in FIG. 12;

Fig. 15 is a schematic view of the roller brush assembly of fig. 1.

Reference numerals illustrate:

A 100-cyclone separation unit; 110-a separator tank; 111-a box body; 1111-an air inlet pipe; 112-case cover; 1121-a mounting cavity; 1122-an outlet tube; 1122 a-an air outlet; 1123—a case lid body; 1124-grooves; 1124 a-communication holes; 1125-an air guide assembly; 1125 a-a retainer ring; 1125 b-support columns; 1125 c-guide tabs; 1126-a support; 1126 a-mounting holes; 1127—a cover; 1128-a bearing; 120-separation assembly; 121-a centrifugal fan; 1211-a support bar; 122-a powered fan; 123-guides; 1231-guide rib; 124-mounting a shaft;

200-a housing; 210-an air duct; 211-a dirt suction port; 220-mounting slots; 230-barrier strips; 240-connection channels;

300-a roller brush assembly; 310-mopping a floor roller brush; 320-dust collection rolling brush; 330-a bracket; 340-a roller brush drive; 350-a rolling brush transmission part;

400-a water guiding component; 410-connecting the pipes; 420-water receiving member; 430-scraping strips; 440-pulling piece;

500-a liquid supply assembly; 510-a liquid storage tank; 520-driving member; 530-water spray.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the preferred embodiments of the present application will be described in more detail with reference to the accompanying drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals refer to the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the application. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be fixedly connected, or indirectly connected through intermediaries, for example, or may be in communication with each other between two elements or in an interaction relationship between the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the description of the present application, the meaning of "a plurality" is two or more, unless specifically stated otherwise.

The terms first, second, third, fourth and the like in the description and in the claims and in the above drawings are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the related art, the cleaning apparatus may include a main body and a brush assembly connected to the main body. The floor brush assembly is used for cleaning a surface to be cleaned. The main machine is provided with a suction component and a dust collection component, the suction component can be a motor, the motor can generate negative pressure, and the dust collection component can comprise a dust cup and a filter screen covered on the dust cup. The floor brush assembly, the dust collection assembly and the motor are sequentially communicated, so that the motor can collect dust and other impurities on the ground into the dust collection assembly through an air channel on the floor brush assembly, and the gas filtered by the filter screen is discharged through the host.

However, the ground surface is also stained with liquid-state stains besides dust, particles and other impurities. Wherein the liquid stain can be water stain, milk or fruit juice, etc. The water stain can be water stain poured or sprayed on the ground by mistake, and can also be sewage generated when the cleaning equipment is wet towed. Hereinafter, liquid stains are collectively referred to as sewage. The sewage can also enter the dust collection assembly through the air duct on the floor brush assembly and enter the host through the dust collection assembly, so that the performance of electric devices in the host is affected. That is, the sewage may cause damage to electrical devices such as a suction assembly or a circuit board in the main unit, and thus may not be used normally.

Based on the above, the embodiment of the application provides a floor brush structure and cleaning equipment, wherein the floor brush structure is provided with a cyclone separation unit, the cyclone separation unit comprises a separation box and a separation assembly, and the separation assembly is positioned in the separation box. The separation assembly rotates relative to the separation tank under suction provided by the main machine of the cleaning apparatus, and fluid enters the separation tank through the air duct. Under the action of the rotation of the separation assembly, the fluid is separated into gas and a solid-liquid mixture, the solid-liquid mixture is thrown into the separation box, and the gas is discharged into a main machine of the cleaning equipment through the separation box. Therefore, water is prevented from entering the host, and the suction assembly or the circuit board and other electrical devices in the host are damaged and cannot be used normally.

Fig. 1 is a schematic structural diagram of a ground brush structure according to an embodiment of the present application; FIG. 2 is a schematic diagram of a floor brush structure according to an embodiment of the present application; FIG. 3 is a schematic diagram of a separation assembly in a floor brush structure according to an embodiment of the present application; fig. 4 is a schematic diagram of a portion of the structure of fig. 3. Fig. 1 to 4 are schematic diagrams illustrating each component in the floor brush structure, and the specific structure of the remaining components in the floor brush structure is not limited to the illustrations of fig. 1 to 4.

The ground brush structure provided by the embodiment of the application is applied to cleaning equipment. Wherein the cleaning apparatus may comprise a main machine in which a suction assembly is provided for providing suction to the floor brush structure. The cleaning device can be a household cleaning device such as a dust collector, a floor cleaning machine and the like.

Referring to fig. 1 to 4, the floor brush structure may include a housing 200, a cyclone unit 100, and a rolling brush assembly 300, the housing 200 having an air duct 210 thereon, the air duct 210 having a dirt suction port 211.

The cyclone separating unit 100 includes a separating case 110 and a separating assembly 120 provided in the separating case 110, the rolling brush assembly 300 and the separating case 110 are provided on the housing 200, and the separating case 110 communicates with the air duct 210.

The separation assembly 120 rotates relative to the separation tank 110 to separate the fluid entering the separation tank 110 through the air duct 210 into a gas and a solid-liquid mixture, and the separation tank 110 is configured to receive the solid-liquid mixture and to discharge the gas.

In the present application, the dirt suction port 211 of the air duct 210 on the housing 200 faces a surface to be cleaned (e.g., the floor, which will be described below). The cyclone unit 100 is used for treating a mixture of water stains, dust, particles and the like. Wherein the mixture of gas, water stains, dust and particles and other impurities may be collectively referred to as a fluid. The roller brush assembly 300 is used to clean the floor.

In particular, the separating bin 110 of the cyclonic separating unit 100 communicates with the air duct 210, the separating bin 110 being adapted to communicate with a suction assembly within a main machine of the cleaning apparatus, suction being provided to the separating bin 110 by the suction assembly.

The suction force may drive the separating assembly 120 of the cyclonic separating unit 100 to rotate relative to the separating bin 110 and draw fluid into the separating bin 110 via the duct 210. The greater the mass of the object, the greater the centrifugal force of the fluid entering the separator tank 110 at the same velocity. Heavier mass of water, moisture, dust, and particulate impurities (which may be collectively referred to as solid-liquid mixtures) in the fluid attains a greater velocity and thus generates a greater centrifugal force to be collected in the separation tank 110 away from the separation assembly 120. The lighter-weight gas in the fluid is discharged to the main machine through the separation assembly 120 and the separation tank 110 with less centrifugal force, and thus is discharged out of the cleaning apparatus through the main machine.

According to the floor brush structure provided by the embodiment of the application, by arranging the cyclone separation unit 100, the cyclone separation unit 100 comprises the separation box 110 and the separation assembly 120, and the separation assembly 120 is positioned in the separation box 110. The separation assembly 120 rotates relative to the separation tank 110 under suction provided by the main machine of the cleaning apparatus, and fluid enters the separation tank 110 through the air duct 210. The fluid is separated into a gas and a solid-liquid mixture by rotation of the separation assembly 120, the solid-liquid mixture is thrown into the separation tank 110, and the gas is discharged into the main machine of the cleaning apparatus through the separation tank 110. Therefore, water is prevented from entering the host, and the suction assembly or the circuit board and other electrical devices in the host are damaged and cannot be used normally.

Hereinafter, the structure of the separation unit 120 will be described.

Fig. 5 is a schematic view of the internal structure of fig. 3. Referring to fig. 2, 3 and 5, in some embodiments, the separation assembly 120 may include a centrifugal fan 121 and a power fan 122, where the centrifugal fan 121 and the power fan 122 are coaxially connected, and the power fan 122 rotates the centrifugal fan 121, and the centrifugal fan 121 separates the fluid into a gas and a solid-liquid mixture.

The power fan 122 may generate power itself to drive the centrifugal fan 121 to rotate. The power fan 122 may also be driven to rotate by the gas separated by the centrifugal fan 121, so as to drive the centrifugal fan 121 to rotate. In particular implementations, the power fan 122 may be a helical blade fan.

To avoid that the fluid is not separated by the centrifugal fan 121, it is discharged directly out of the separation tank 110 via the power fan 122. In some embodiments, the separator tank 110 includes a tank 111 and a tank cover 112, with the tank cover 112 being disposed over the tank 111. The centrifugal fan 121 is located in the case 111, the case cover 112 has a mounting cavity 1121 communicating with the case 111, and the power fan 122 is located in the inner mounting cavity 1121. In this way, the power fan 122 and the centrifugal fan 121 may be separated by the case 111 and the case cover 112, so that the fluid, after being separated by the centrifugal fan 121, enters the case cover 112 and is discharged through the case cover 112.

In the application, the box 111 is provided with an air inlet pipe 1111 communicated with the box 111, the air inlet pipe 1111 is communicated with an air duct 210, and the box cover 112 is internally provided with an air outlet pipe 1122 communicated with an installation cavity 1121; the air inlet pipe 1111 and the air outlet pipe 1122 are respectively located at opposite sides of the centrifugal fan 121.

According to the application, the air inlet pipe 1111 is arranged, and the air duct 210 is communicated with the box body 111 through the air inlet pipe 1111, so that the box body 111 is in butt joint with the air duct 210, and fluid can smoothly enter the box body 111.

An outlet duct 1122 is provided, the outlet duct 1122 being adapted for communication with the suction assembly so as to facilitate the discharge of the separated gas out of the separation tank 110 through the outlet duct 1122.

The air inlet pipe 1111 and the air outlet pipe 1122 are respectively arranged at two opposite sides of the centrifugal fan 121, so that the air inlet pipe 1111 and the air outlet pipe 1122 are conveniently arranged, and the mutual interference of the air inlet pipe 1111 and the air outlet pipe 1122 can be avoided.

In one embodiment, the air inlet pipe 1111 communicates directly with the air duct 210. In another embodiment, the air inlet pipe 1111 communicates with the air duct 210 through a pipe. In a specific implementation, the communication mode between the air inlet pipe 1111 and the air duct 210 is adaptively selected according to the position of the air duct 210 on the housing 200 and the position of the separation box 110, which is not limited herein.

In the floor brush structure provided by the embodiment of the application, the box body 111 is barrel-shaped, and the air inlet pipe 1111 is tangent to the box body 111. Or the intake pipe 1111 is approximately tangential to the housing 111. In this way, the flow direction of the fluid may be controlled by the intake pipe 1111, for example, as indicated by solid arrows in fig. 4, so that the fluid is guided to the inner side wall of the case 111 via the intake pipe 1111.

Fig. 6 is a schematic structural view of the centrifugal fan in fig. 3. Referring to fig. 2, 3,5, and 6, in some embodiments, the centrifugal fan 121 rotates in a direction that is consistent with the flow direction of fluid into the separator tank 110. In this way, the centrifugal fan 121 is prevented from interfering with the flow direction of the fluid entering the box 111 when rotating, so that the fluid can smoothly enter the box 111 and be separated under the driving of the rotation of the centrifugal fan 121.

In a specific implementation, the centrifugal fan 121 is bowl-shaped, the bowl opening of the centrifugal fan 121 faces the case cover 112, the side surface of the centrifugal fan 121 is formed by uniformly and alternately arranging a plurality of support rods 1211, the support rods 1211 incline from the bowl bottom of the centrifugal fan 121 toward the bowl opening of the centrifugal fan 121, and the inclination direction of the support rods 1211 is consistent with the rotation direction of the power fan 122.

In the present application, each support rod 1211 forms a side surface of the centrifugal fan 121, and the support rods 1211 extend from the bowl bottom of the centrifugal fan 121 toward the bowl opening of the centrifugal fan 121 so that the side surface of the centrifugal fan 121 is in a grid shape and the inside of the centrifugal fan 121 is hollow. By setting the inclination direction of the support rods 1211 to coincide with the rotation direction of the power fan 122, each support rod 1211 can agitate the air flow during rotation, and throw the fluid to a position away from the rotation center of the centrifugal fan 121, thereby accelerating the fluid entering the casing 111.

The fluid enters the housing 111 along the solid arrows shown in fig. 4, the centrifugal fan 121 rotates in the clockwise direction shown in fig. 4, and the centrifugal fan 121 rotates in the same direction as the fluid in the housing 111. Under the action of the centrifugal fan 121, the fluid is brought to a greater speed, thereby generating a greater centrifugal force. At the same speed, the greater the mass of the object, the greater the centrifugal force, and since the gas density > the vapor mixture density > the solid matter density, the heavier the object is away from the rotational axis I of the centrifugal fan 121, the closer the gas centrifugal fan 121 is to the density, thereby separating the gas from the vapor and solid matter.

The gap between the adjacent two support rods 1211 forms an inlet through which the gas separated by the centrifugal fan 121 enters the centrifugal fan 121, and the gas enters the inside of the centrifugal fan 121 and thus the installation cavity 1121.

FIG. 7 is a schematic view of the guide of FIG. 3; FIG. 8 is a schematic diagram of a portion of the structure of FIG. 3; fig. 9 is an exploded view of fig. 3. Referring to fig. 3-9, to avoid separation of fluid by the separation assembly 120, fluid enters the mounting cavity 1121 directly above the separation assembly 120. In some embodiments, the separation assembly 120 further includes a guide 123, the guide 123 being located within the housing 111; the guide 123 is interposed between the centrifugal fan 121 and the cover 112 to guide the fluid at the top of the centrifugal fan 121 to the side of the centrifugal fan 121.

In some embodiments, the guide 123 may be a guide ring, and an end of the guide ring may be fixedly coupled to a surface of the case cover 112 facing the case 111. The upper part of the centrifugal fan 121 is located in the guide ring.

In another embodiment, the guide 123 may be an anti-reverse fan coaxially connected with the centrifugal fan 121, and the anti-reverse fan rotates in the same direction as the centrifugal fan 121;

The anti-reverse fan is located between the centrifugal fan 121 and the power fan 122. In other words, an anti-reverse fan is disposed above the centrifugal fan 121, and the anti-reverse fan rotates in the same direction as the centrifugal fan 121 to guide the fluid above the separation assembly 120 to the side of the separation assembly 120, thereby preventing the fluid from directly entering the installation cavity 1121 through the upper side of the separation assembly 120.

In particular, the sidewalls of the anti-reverse fan are uniformly provided with a plurality of guide ribs 1231 at intervals, the guide ribs 1231 are inclined, and the inclination direction of the guide ribs 1231 coincides with the inclination direction of the support rod 1211. In this way, the fluid above the separation module 120 is guided to the side of the separation module 120 by the guide rib 1231 during the anti-reverse fan rotation.

With continued reference to fig. 4,5, 8 and 9, in the floor brush structure provided by the embodiment of the application, the cover 112 includes a cover body 1123, and the surface of the cover body 1123 facing the centrifugal fan 121 has a groove 1124 thereon, and the groove 1124 protrudes toward a side facing away from the centrifugal fan 121.

The guide 123 is located in the groove 1124, and the bowl opening of the centrifugal fan 121 surrounds the peripheral side of the notch of the groove 1124, and the end of the guide 123 is inserted into the centrifugal fan 121.

Specifically, an installation space is provided for the anti-upwind fan through the groove 1124. Wherein the inner sidewall of the groove 1124 may be matched with the outer sidewall of the guide 123 (e.g., the outer sidewall of the anti-reverse fan), there is a gap between the inner sidewall of the groove 1124 and the outer sidewall of the anti-reverse fan to avoid the groove 1124 from affecting the rotation of the anti-reverse fan. A gap is provided between the bowl opening of the centrifugal fan 121 and the surface of the cover body 1123 facing the centrifugal fan 121 so that the centrifugal fan 121 can smoothly rotate.

The end of the guide member 123 is inserted into the centrifugal fan 121, so that the side surface of the guide member 123 seals the gap between the bowl opening of the centrifugal fan 121 and the surface of the cover body 1123 facing the centrifugal fan 121, thereby preventing fluid from directly entering the centrifugal fan 121 through the bowl opening of the centrifugal fan 121.

In order to allow smooth gas entry into the mounting cavity 1121. In some embodiments, the groove 1124 has a wind guiding component 1125 therein, the groove 1124 has a communication hole 1124a on the bottom of the groove 1124, the communication hole 1124a is adjacent to the outlet duct 1122, and the wind guiding component 1125 communicates with the installation cavity 1121 through the communication hole 1124a, so that the gas sequentially passes through the centrifugal fan 121, the guide 123 and the installation cavity 1121 to enter the outlet duct 1122.

In a specific implementation, the air guiding assembly 1125 includes a retainer ring 1125a, a support column 1125b and a guide piece 1125c, the side wall of the anti-reverse fan is located between the groove and the retainer ring 1125a, the support column 1125b is disposed in the retainer ring 1125a, and the support column 1125b is disposed coaxially with the centrifugal fan 121.

The guide piece 1125c is connected obliquely between the retainer ring 1125a and the support column 1125b, the direction of inclination of the guide piece 1125c coincides with the direction of inclination of the support rod 1211, and the end of the guide piece 1125c is connected to the inner wall of the communication hole 1124 a.

Specifically, the guide piece 1125c may be spiral, the guide piece 1125c surrounding the circumference of the support column 1125b, the guide piece 1125c, the inner side wall of the retainer ring 1125a, and the outer side wall of the support column 1125b together enclosing a guide groove so that the gas is spirally raised through the guide groove to enter the installation cavity 1121 through the communication hole 1124 a.

Here, the number of turns of the guide piece 1125c around the circumferential side of the support column 1125b may be less than one, and the gas may be guided to the communication hole 1124 a.

In the present application, the surface of the cover body 1123 facing away from the centrifugal fan 121 has a support portion 1126, and the support portion 1126 and the cover body 1123 together form a mounting chamber 1121 and an outlet duct 1122.

The outlet duct 1122 has an outlet 1122a, the outlet 1122a being located below the mounting cavity 1121. In other words, the air outlet 1122a is provided below the power fan 122.

The air outlet 1122a of the present application is arranged below the power fan 122, and the suction assembly on the host computer is arranged above the air outlet 1122 a. When the suction assembly is operated, a negative pressure is formed at the air outlet 1122a, and since the power fan 122 is located in the case cover 112, the centrifugal fan 121 and the reverse-flow preventing fan are both located in the case 111, that is, the centrifugal fan 121 and the reverse-flow preventing fan are separated from the power fan 122 by two chambers. The power fan 122 communicates with the other two (i.e., the centrifugal fan 121 and the anti-reverse fan) through the communication hole 1124a, and the gas can pass through only the communication hole 1124 a. Therefore, a negative pressure is generated at the position of the communication hole 1124a, fluid enters the case 111 from the air outlet pipe 1122, and the gas separated by the centrifugal fan 121 flows through the air guide member 1125 by the air anti-reverse fan, and the gas is guided by the guide piece 1125c to impact the blades of the power fan 122 during the flowing process, so that the power fan 122 is rotated in a set direction.

In some embodiments, the separation assembly 120 further includes a mounting shaft 124, the mounting shaft 124 is inserted on the support column 1125b, and the centrifugal fan 121, the power fan 122 and the anti-reverse fan are sleeved on the mounting shaft 124 and are fixedly connected with the mounting shaft 124. Accordingly, the centrifugal fan 121, the power fan 122, and the reverse-flow preventing fan are rotated synchronously and in the same direction, that is, in the same direction.

In a specific implementation, the central parts of the centrifugal fan 121, the power fan 122 and the anti-reverse fan are all provided with mounting posts. The mounting shaft 124 is inserted over the mounting post. The mounting post of the centrifugal fan 121 may be a bowl bottom of the centrifugal fan 121. The mounting column of the anti-reversing fan is connected with the side wall of the anti-reversing fan through at least two connecting rods. Air holes for passing air are formed between the connecting rods.

In the present application, the support portion 1126 has a mounting hole 1126a, the cover 112 further includes a cover 1127, the cover 1127 is provided to cover the mounting hole 1126a, and the cover 1127 is located above the power fan 122. That is, the mounting cavity 1121 may be exposed by opening the cover 1127, thereby facilitating the installation or maintenance of the power fan 122 within the mounting cavity 1121.

In order to obtain a larger rotational speed of the centrifugal fan 121, the power fan 122, and the reverse-preventing fan with a smaller suction force. In some embodiments, at least one of the cover 1127 and support post 1125b has a bearing 1128 therein, the bearing 1128 being sleeved on the mounting shaft 124.

Fig. 10 is a partial exploded view of fig. 1. Referring to fig. 1,2 and 10, the housing 200 has a mounting groove 220 thereon, the case 111 is detachably coupled to the mounting groove 220, and the cover 112 is detachably coupled to the case 111. In this way, the separation tank 110 can be removed from the housing 200 and the tank cover 112 opened to pour the collected solid-liquid mixture in the tank 111 for recycling of the separation tank 110.

Wherein, the mounting groove 220 and the mounting groove 220 can be detachably connected by clamping, inserting and the like. The case cover 112 and the case body 111 may be detachably connected by a snap-fit, a plug-in, a screw-in connection, or the like.

In particular, the mounting groove 220 may be matched with the case 111, that is, the inner sidewall of the mounting groove 220 abuts against the outer sidewall of the case 111, thereby preventing impurities such as dust from entering the case 111 through the mounting groove 220.

The above is a description of the structure of the cyclone unit 100. Next, the structure of the roll brush assembly 300 will be described with reference to the accompanying drawings.

Fig. 11 is a schematic diagram of a second structure of the floor brush according to the embodiment of the present application. Referring to fig. 2 and 11, in some embodiments, the roller brush assembly 300 includes a mopping roller brush 310 for wet mopping, the mopping roller brush 310 being rotatably disposed on the housing 200. The floor is wet-mopped by the mopping roller brush 310, thereby cleaning stubborn stains on the floor.

When the number of the floor mopping roller brushes 310 is one as shown in fig. 2, the air duct 210 is located behind the floor mopping roller brushes 310. When the number of the floor mopping rollers 310 is two as shown in fig. 11, the air duct 210 is located between the two floor mopping rollers 310.

When the floor mopping roller brush 310 performs wet floor mopping, the air duct 210 positioned behind the floor mopping roller brush 310 sucks the sewage generated by the floor mopping roller brush 310 into the separating assembly 120, and separates and collects the sewage through the separating assembly 120. When the air duct 210 is positioned in front of the floor mopping roller brush 310, sewage on the floor mopping roller brush 310 can be guided into the air duct 210 through the water guiding structure.

Hereinafter, a water guide structure for guiding sewage on the floor mopping roller brush 310 into the air duct 210 will be described with reference to the structure of the roller brush assembly 300.

FIG. 12 is a schematic view of the internal structure of FIG. 1; FIG. 13 is an enlarged view of FIG. 12 at A; fig. 14 is an enlarged view at B in fig. 12. Referring to fig. 1, 3, and 12 to 14, in some embodiments, the roller brush assembly 300 includes a floor mopping roller brush 310 and a dust suction roller brush 320, the dust suction roller brush 320 being used for dry mopping, the dust suction roller brush 320 being located in front of the floor mopping roller brush 310, and the air duct 210 being located between the floor mopping roller brush 310 and the dust suction roller brush 320.

The housing 200 is provided with a water guide assembly 400, and the water guide assembly 400 is communicated with the air duct 210 to guide sewage on the floor roller brush 310 to the air duct 210. Thus, the sewage on the floor roller 310 may be collected into the cyclone unit 100 through the air duct 210 to be separated. Therefore, the sewage residue on the ground is reduced, and the experience of a user is improved.

In the present application, the floor mopping roller brush 310 and the dust suction roller brush 320 are used to contact the floor. The diameters of the mopping roller brush 310 and the dust-absorbing roller brush 320 may be equal, the axes of the mopping roller brush 310 and the dust-absorbing roller brush 320 may be parallel, and the axes of the two may be located in the same horizontal plane. Thus, the floor mopping rolling brush 310 and the dust collection rolling brush 320 can rotate relatively uniformly during working, which is beneficial to maintaining the floor brush structure stable during working and maintaining the horizontal posture.

In some embodiments, the bottom of the housing 200 is further provided with a barrier 230, and the barrier 230 is located between the air duct 210 and the floor roller 310. And the barrier rib 230, the mopping roller brush 310 and the dust collection roller brush 320 are all in contact with the ground. The barrier rib 230 and the dust collection roller brush 320 form a dust collection area therebetween, and the area of the floor cleaning roller brush 310 in contact with the floor may be referred to as a cleaning area. The barrier rib 230 separates the floor roller brush 310 and the dust suction roller brush 320, thereby separating the dust suction area and the floor area.

Wherein, the barrier rib 230 may be a flexible member. Such as rubber or silicone members, etc.

The dust-absorbing rolling brush 320 and the floor-mopping rolling brush 310 are rotatably arranged in the shell 200 and partially exposed out of the bottom of the shell 200, and the dust-absorbing rolling brush 320 and the floor-mopping rolling brush 310 are respectively positioned at two ends of the shell 200 along the travelling direction of the floor brush structure.

The dust-absorbing rolling brush 320 is dry and is mainly used for cleaning particles, dust or other dry garbage on the ground. The dust suction roll brush 320 rotates and rubs the floor to roll up the floor brush dirt, which is sucked to the separation tank 110 through the air duct 210. The mopping roller brush 310 has a relatively wet cleaning surface, and the mopping operation on the floor can be performed by rolling the mopping roller brush 310 relative to the floor, i.e., mopping the floor like a mop.

In particular, the water guide assembly 400 includes a connection pipe 410, a water receiving member 420, and a wiper 430, the water receiving member 420 is disposed in the housing 200, the water outlet end of the water receiving member 420 is communicated with the air duct 210 through the connection pipe 410, and the water inlet end of the water receiving member 420 faces the floor roller brush 310.

The scraping strip 430 is disposed above the water inlet end of the water receiving member 420, and the scraping strip 430 is in interference fit with the floor roller brush 310. Wherein the wiper strip 430 may be a hard wiper strip.

In the present application, the sewage on the mopping roller brush 310 is scraped off by the scraping bar 430, and enters the water receiving member 420 along the scraping bar 430, and the sewage on the mopping roller brush 310 is guided into the air duct 210 by the connecting pipe 410, and is sucked into the separation tank 110 to be separated.

Wherein the connection pipe 410 may be a hose. Interfaces can be arranged on the water outlet ends of the air duct 210 and the water receiving piece 420, and two ends of the hose are respectively sleeved on the interfaces of the air duct 210 and the water outlet end of the water receiving piece 420. The water receiving member 420 may be disposed within the housing 200. In some embodiments, the water receptacle 420 may be integrally formed with the housing 200.

The extending direction of the scraping strip 430 coincides with the axial direction of the floor roller 310. The end of the scraping strip 430 is flush with the end of the mopping roller brush 310, or the end of the scraping strip 430 is located outside the end of the mopping roller brush 310. That is, the length of the scraping bar 430 may be equal to the length of the floor mopping roller brush 310 in the axial direction or greater than the length of the floor mopping roller brush 310 in the axial direction. Correspondingly, two ends of the port of the water inlet end of the water receiving member 420 may be respectively flush with two ends of the scraping strip 430, so that the water inlet end of the water receiving member 420 can sufficiently receive sewage scraped by the scraping strip 430 from the mopping roller brush 310.

In some embodiments, the water guide assembly 400 further includes a paddle 440, the paddle 440 being disposed below the water inlet end of the water receptacle 420, the paddle 440 being in contact with the mopping roller brush 310. The solid garbage on the mopping roller brush 310 can be pulled down by the pulling sheet 440, so that the blockage of the water inlet end of the water receiving piece 420 caused by the solid garbage is prevented.

Wherein, the paddle 440 may be a soft paddle. The paddle 440 may be interference fit with the mopping roller brush 310 to prevent sewage from leaking between the mopping roller brush 310 and the water receptacle 420.

In addition, the housing 200 further has a connection channel 240, the air outlet 1122a is opposite to the connection channel 240, and the air outlet 1122 is communicated with the connection channel 240. The connection channel 240 is used to connect a hose, thereby connecting the outlet duct 1122 with a host computer.

The floor brush structure provided by the embodiment of the application further comprises a liquid supply assembly 500, wherein the liquid supply assembly 500 comprises a liquid storage tank 510, a driving piece 520 and a water spraying piece 530, and the liquid storage tank 510 is arranged on the shell 200.

The water spraying member 530 and the driving member 520 are disposed in the housing 200, the water spraying member 530 is connected with the liquid storage tank 510 through the driving member 520, the water spraying member 530 is disposed above the scraping strip 430, and the water spraying member 530 is used for spraying liquid to the floor roller brush 310.

The liquid tank 510 may store liquid, wherein the liquid may be clean water, or a mixture of clean water and a cleaning agent. The liquid storage tank 510 may be detachably disposed on the housing 200. Wherein the liquid storage tank 510 and the separation tank 110 may be disposed opposite to each other in the axial direction of the floor roller brush 310. Thereby facilitating the counterweight of the floor brush structure.

The driving member 520 may be a water pump. The water spraying member 530 may be a plurality of spray heads. The water pump delivers the liquid in the reservoir 510 to the water spray 530, and the water spray 530 delivers the liquid to the floor scrubbing roller brush 310 to wet the floor scrubbing roller brush 310. The floor scrubbing roller brush 310 rotates to drive the liquid to rotate and rub against the floor, thereby wiping off dirt stuck on the floor.

In particular, the dust collection roller brush 320 rotates counterclockwise, the mopping roller brush 310 rotates clockwise, and the liquid supply assembly 500 and the water guide assembly 400 are positioned between the dust collection roller brush 320 and the mopping roller brush 310. Therefore, the structure of the ground brush structure is compact, light and flexible.

Fig. 15 is a schematic view of the roller brush assembly of fig. 1. Referring to fig. 1 and 15, the roll brush assembly 300 may further include a bracket 330, a roll brush driving member 340, and a roll brush transmitting member 350. The bracket 330 is coupled to the housing 200. The floor cleaning roller 310 and the dust suction roller 320 are rotatably provided on the bracket 330. The roller brush driving part 340 drives the floor mopping roller brush 310 and the dust suction roller brush 320 to rotate through the roller brush driving part 350.

The dust-absorbing rolling brush 320 may include a gear set and two belts, the gear set is connected with the rolling brush driving part 340, the gear set has two output shafts, the two output shafts are respectively connected with one belt, and the two belts are respectively connected with the floor-mopping rolling brush 310 and the dust-absorbing rolling brush 320. The power of the brush driving member 340 is transmitted to the floor mopping brush 310 and the dust suction brush 320 through the gear sets and the belt.

The embodiment of the application also provides cleaning equipment which comprises a host machine and the floor brush structure provided by any embodiment, wherein the floor brush structure is connected with the host machine.

The structure and the working principle of the ground brush structure are described in detail in the above embodiments, and are not described in detail here.

According to the cleaning device provided by the embodiment of the application, the floor brush structure is provided, and the cyclone separation unit 100 is provided, so that the cyclone separation unit 100 comprises the separation box 110 and the separation assembly 120, and the separation assembly 120 is positioned in the separation box 110. The separation assembly 120 rotates relative to the separation tank 110 under suction provided by the main machine of the cleaning apparatus, and fluid enters the separation tank 110 through the air duct 210. The fluid is separated into a gas and a solid-liquid mixture by rotation of the separation assembly 120, the solid-liquid mixture is thrown into the separation tank 110, and the gas is discharged into the main machine of the cleaning apparatus through the separation tank 110. Therefore, water is prevented from entering the host, and the suction assembly or the circuit board and other electrical devices in the host are damaged and cannot be used normally. In addition, the cyclone separating unit 100 of the present application is located on a floor brush structure on which fluid separation is performed, and is disposed on a main machine, which is inclined with respect to the dust collecting assembly of the related art, to prevent water from entering the motor. When the cleaning device is used, the host machine can be horizontally placed.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (25)

1. The floor brush structure is characterized by comprising a cyclone separation unit (100), a shell (200) and a rolling brush assembly (300), wherein an air duct (210) is arranged on the shell (200), and the air duct (210) is provided with a dirt sucking port (211);

The cyclone separation unit (100) comprises a separation box (110) and a separation assembly (120) arranged in the separation box (110), the rolling brush assembly (300) and the separation box (110) are arranged on the shell (200), and the separation box (110) is communicated with the air duct (210);

The separation assembly (120) rotates relative to the separation tank (110) to separate fluid entering the separation tank (110) through the air duct (210) into a gas and solid-liquid mixture, the separation tank (110) being configured to receive the solid-liquid mixture and to expel the gas.

2. The floor brush structure according to claim 1, wherein the separation assembly (120) comprises a centrifugal fan (121) and a power fan (122), the centrifugal fan (121) and the power fan (122) are coaxially connected, the power fan (122) rotates the centrifugal fan (121), and the centrifugal fan (121) separates the fluid into a gas and a solid-liquid mixture.

3. The floor brush structure according to claim 2, wherein the separation tank (110) includes a tank body (111) and a tank cover (112), the tank cover (112) being provided to cover the tank body (111);

The centrifugal fan (121) is located in the box body (111), a mounting cavity (1121) communicated with the box body (111) is formed in the box cover (112), and the power fan (122) is located in the mounting cavity (1121).

4. A floor brush arrangement according to claim 3, characterized in that the separation assembly (120) further comprises a guide (123), the guide (123) being located within the housing (111);

The guide member (123) is arranged between the centrifugal fan (121) and the box cover (112) in a blocking manner so as to guide the fluid at the top of the centrifugal fan (121) to the side of the centrifugal fan (121).

5. The floor brush structure according to claim 4, wherein the guide (123) is an anti-reverse fan, the anti-reverse fan is coaxially connected with the centrifugal fan (121), and the anti-reverse fan and the centrifugal fan (121) rotate in the same direction;

the anti-backup fan is located between the centrifugal fan (121) and the power fan (122).

6. The floor brush structure according to claim 5, wherein the box body (111) is provided with an air inlet pipe (1111) communicated with the box body (111), the air inlet pipe (1111) is communicated with the air duct (210), and the box cover (112) is internally provided with an air outlet pipe (1122) communicated with the installation cavity (1121);

The air inlet pipe (1111) and the air outlet pipe (1122) are respectively positioned at two opposite sides of the centrifugal fan (121).

7. The floor brush structure according to claim 6, wherein the tank (111) is barrel-shaped, and the air intake pipe (1111) is tangential to the tank (111).

8. The floor brush arrangement according to claim 7, characterized in that the direction of rotation of the centrifugal fan (121) coincides with the flow direction of the fluid into the separator tank (110).

9. A floor brush structure according to claim 3, wherein the centrifugal fan (121) is bowl-shaped, a bowl opening of the centrifugal fan (121) faces the case cover (112), a side surface of the centrifugal fan (121) is formed by uniformly and alternately arranging a plurality of support rods (1211), the support rods (1211) incline from a bowl bottom of the centrifugal fan (121) toward the bowl opening of the centrifugal fan (121), and an inclination direction of the support rods (1211) is consistent with a rotation direction of the power fan (122).

10. The floor brush structure according to claim 5, wherein a plurality of guide ribs (1231) are provided at even intervals on the side wall of the reverse-preventing fan, the guide ribs (1231) are provided obliquely, and the oblique direction of the guide ribs (1231) coincides with the rotation direction of the power fan (122).

11. The floor brush structure according to claim 6, characterized in that the cover (112) comprises a cover body (1123), the cover body (1123) having a recess (1124) on a surface facing the centrifugal fan (121), the recess (1124) protruding toward a side facing away from the centrifugal fan (121);

The guide piece (123) is positioned in the groove (1124), the bowl opening of the centrifugal fan (121) surrounds the periphery side of the notch of the groove (1124), and the end part of the guide piece (123) is inserted into the centrifugal fan (121).

12. The floor brush structure according to claim 11, wherein the groove (1124) is provided therein with an air guiding assembly (1125), a communication hole (1124 a) is provided on a bottom of the groove (1124), the communication hole (1124 a) is adjacent to the air outlet pipe (1122), and the air guiding assembly (1125) is communicated with the installation cavity (1121) through the communication hole (1124 a) so that the air enters the air outlet pipe (1122) through the centrifugal fan (121), the guide member (123) and the installation cavity (1121) in this order.

13. The floor brush structure according to claim 12, wherein the air guiding assembly (1125) includes a retainer ring (1125 a), a support column (1125 b) and a guide piece (1125 c), the side wall of the anti-reverse fan is located between the groove and the retainer ring (1125 a), the support column (1125 b) is disposed within the retainer ring (1125 a), and the support column (1125 b) is disposed coaxially with the centrifugal fan (121);

The guide piece (1125 c) is connected between the retainer ring (1125 a) and the support column (1125 b) in an inclined manner, the inclined direction of the guide piece (1125 c) coincides with the inclined direction of the support rod (1211), and the end of the guide piece (1125 c) is connected to the inner wall of the communication hole (1124 a).

14. The floor brush structure according to claim 13, characterized in that a surface of the cover body (1123) facing away from the centrifugal fan (121) has a supporting portion (1126), the supporting portion (1126) and the cover body (1123) together forming the installation cavity (1121) and the outlet duct (1122);

the air outlet pipe (1122) is provided with an air outlet (1122 a), and the air outlet (1122 a) is positioned below the mounting cavity (1121).

15. The floor brush structure according to claim 14, wherein the separation assembly (120) further comprises a mounting shaft (124), the mounting shaft (124) is inserted on the support column (1125 b), and the centrifugal fan (121), the power fan (122) and the anti-reverse fan are sleeved on the mounting shaft (124) and fixedly connected with the mounting shaft (124).

16. The floor brush structure according to claim 15, wherein the support portion (1126) has a mounting hole (1126 a), the cover (112) further includes a cover body (1127), the cover body (1127) is covered on the mounting hole (1126 a), and the cover body (1127) is located above the power fan (122).

17. The floor brush structure according to claim 16, characterized in that at least one of the cover body (1127) and the support column (1125 b) has a bearing (1128) therein, the bearing (1128) being sleeved on the mounting shaft (124).

18. The floor brush structure according to any one of claims 3 to 8, wherein the housing (200) has a mounting groove (220) thereon, the case (111) is detachably connected to the mounting groove (220), and the case cover (112) is detachably connected to the case (111).

19. The floor brush arrangement according to any of claims 1 to 8, characterized in that the roller brush assembly (300) comprises at least one floor mopping roller brush (310) for wet mopping, the floor mopping roller brush (310) being rotatably arranged on the housing (200).

20. The floor brush arrangement according to any of claims 1 to 8, characterized in that the roller brush assembly (300) comprises a floor mopping roller brush (310) and a dust suction roller brush (320), the floor mopping roller brush (310) and the dust suction roller brush (320) being rotatably arranged on the housing (200), the dust suction roller brush (320) being for dry mopping, the dust suction roller brush (320) being located in front of the floor mopping roller brush (310), the air duct (210) being located between the floor mopping roller brush (310) and the dust suction roller brush (320);

The shell (200) is provided with a water guide assembly (400), and the water guide assembly (400) is communicated with the air duct (210) so as to guide sewage on the mopping rolling brush (310) to the air duct (210).

21. The floor brush structure according to claim 20, wherein the water guide assembly (400) includes a connection pipe (410), a water receiving member (420) and a wiper strip (430), the water receiving member (420) is disposed in the housing (200), a water outlet end of the water receiving member (420) is communicated with the air duct (210) through the connection pipe (410), and a water inlet end of the water receiving member (420) faces the floor brush (310);

the scraping strip (430) is arranged above the water inlet end of the water receiving piece (420), and the scraping strip (430) is in interference fit with the mopping rolling brush (310).

22. The floor brush structure of claim 21, wherein the water guide assembly (400) further comprises a paddle (440), the paddle (440) being disposed below the water inlet end of the water receiving member (420), the paddle (440) being in contact with the floor roller brush (310).

23. The floor brush structure of claim 21, further comprising a liquid supply assembly (500), the liquid supply assembly (500) comprising a liquid reservoir (510), a drive member (520) and a water spray member (530), the liquid reservoir (510) being disposed on the housing (200);

The water spraying piece (530) and the driving piece (520) are positioned in the shell (200), the water spraying piece (530) is connected with the liquid storage tank (510) through the driving piece (520), the water spraying piece (530) is positioned above the scraping strip (430), and the water spraying piece (530) is used for spraying liquid to the mopping rolling brush (310).

24. The floor brush structure according to claim 23, wherein the dust suction roller brush (320) rotates counterclockwise, the floor mopping roller brush (310) rotates clockwise, and the liquid supply assembly (500) and the water guide assembly (400) are located between the dust suction roller brush (320) and the floor mopping roller brush (310).

25. A cleaning device comprising a host machine and the floor brush structure of any one of claims 1 to 24, the floor brush structure being connected to the host machine.