CN214804452U - Cleaning floor brush with side suction port and cleaning equipment - Google Patents

Abstract

The utility model provides a clean scrubbing brush with side suction inlet, including casing, drive assembly and connecting pipe, the connecting pipe is connected to the top of casing, and drive assembly sets up in the casing, still is provided with fluid passage in the casing, fluid passage and connecting pipe intercommunication, and wherein, fluid passage extends to the side of casing in order to form the side suction inlet. The utility model also provides a cleaning device, cleaning device include interconnect's dust collecting equipment, extension pipe and as above clean scrubbing brush. The embodiment of the utility model provides an in, add the outside formation side suction inlet that extends to the casing again on the basis of the first flow path of current in the bottom of scrubbing brush and second flow path, can also clean the dust of scrubbing brush both sides through this side suction inlet, improve the clean effect to ground.

Description

Cleaning floor brush with side suction port and cleaning equipment

Technical Field

The utility model relates to a clean equipment technical field, especially relate to a clean scrubbing brush and cleaning device with side suction inlet.

Background

In the conventional cleaning floor brush, only a first fluid flow path and a second fluid flow path are provided at the bottom of the floor brush. However, the first fluid flow path and the second fluid flow path are both located inside the casing of the floor brush, so that the dust on the left side and the right side of the floor brush cannot be cleaned in the moving process of the floor brush, and the cleaning effect on the ground is reduced.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem among the prior art, the utility model provides a clean scrubbing brush with side suction inlet, including casing, drive assembly and connecting pipe, the connecting pipe is connected to the top of casing, and drive assembly sets up in the casing, still is provided with fluid passage in the casing, fluid passage and connecting pipe intercommunication, and wherein, fluid passage extends to the side of casing in order to form the side suction inlet.

Further, the fluid passage includes a first flow path, a second flow path, and a third flow path, the front end of the first flow path forms the fluid inlet, the first flow path extends backward through the inside of the housing and communicates with the connection pipe, and the second flow path and the third flow path are both provided on the lower surface of the housing and communicate with the fluid inlet.

Further, the fluid passage may further include a plurality of front suction ports provided at a front end of the lower surface of the housing and communicating with the fluid inlet.

Further, the first flow path and the second flow path are both located on the rear side of the plurality of front suction ports.

Furthermore, the second flow paths are arranged on two sides of the first flow paths in pairs, the third flow paths are arranged on two sides of the first flow paths in pairs, and the third flow paths are positioned on the rear sides of the second flow paths.

Further, the third flow path includes a lateral flow path and a curved flow path that communicate, wherein the lateral flow path is substantially parallel to the second flow path.

Further, the outer end portion of the lateral flow path extends to the side edge of the housing to form a side suction port, one end of the curved flow path is connected to the inner end of the lateral flow path, and the other end of the curved flow path is connected to the second flow path.

Further, the bottom of the housing further comprises a front wheel body, and the front wheel body is installed between the second flow path and the third flow path.

Further, the first flow path comprises a first flow channel, a second flow channel and a third flow channel which are sequentially communicated, the first flow channel extends from the fluid inlet to the rear upper side in the shell, the second flow channel is located above the driving assembly, and the third flow channel extends from the second flow channel to the connecting pipe to the rear lower side.

The utility model also provides a cleaning device, cleaning device include interconnect's dust collecting equipment, extension pipe and as above clean scrubbing brush.

The embodiment of the utility model provides an in, add the outside formation side suction inlet that extends to the casing again on the basis of the first flow path of current in the bottom of scrubbing brush and second flow path, can also clean the dust of scrubbing brush both sides through this side suction inlet, improve the clean effect to ground.

Drawings

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

FIG. 2 is a schematic view of the interior of a water tank of a cleaning brush according to an embodiment of the present invention;

FIG. 3 is a schematic view of a water injection plug of a water tank of a cleaning brush according to an embodiment of the present invention separated;

fig. 4 is a partial enlarged view of a portion N of fig. 3;

FIG. 5 is a schematic view of a water level adjustment switch for cleaning a water tank of a floor brush according to an embodiment of the present invention;

FIG. 6 is a bottom view of a cleaning brush according to an embodiment of the present invention;

fig. 7 is a partial enlarged view of a portion O of fig. 6;

FIG. 8 is a cross-sectional view of a flow path of a cleaning brush according to an embodiment of the present invention;

FIG. 9 is a side view of a cleaning brush according to an embodiment of the present invention;

fig. 10 is a partial enlarged view of portion P of fig. 9;

FIG. 11 is a schematic view of a drive assembly of a cleaning brush according to an embodiment of the present invention;

FIG. 12 is a bottom schematic view of a cleaning brush according to an embodiment of the present invention;

FIG. 13 is a bottom exploded schematic view of a cleaning brush according to an embodiment of the present invention;

FIG. 14 is a side cross-sectional view of a cleaning brush according to an embodiment of the present invention;

FIG. 15 is a schematic view of a rotating disc of a cleaning assembly of the cleaning brush according to an embodiment of the present invention;

FIG. 16 is a cross-sectional view of a rotating disk of a cleaning assembly of the cleaning brush according to an embodiment of the present invention;

figure 17 is a schematic view of a cleaning portion of a cleaning assembly of a cleaning brush according to an embodiment of the present invention.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Fig. 1 to 4 illustrate a schematic view of a cleaning floor brush according to an embodiment of the present invention, as shown in the drawing, a cleaning floor brush 10 includes a water tank 100, a housing 200, and a connection pipe 300, the water tank 100 is disposed at the top of the housing 200, and a top surface of the water tank 100 forms a portion of a top surface of the cleaning floor brush 10. The housing 200 is provided with a fluid passage 210, a driving assembly 220, a first cleaning assembly 230, a second cleaning assembly 240, a water quantity adjusting assembly 250, and a front wheel 260. An illumination lamp 270 may also be provided at the front of the housing 200.

In detail, the water tank 100 may include a water tank upper cover 110, a water tank lower cover 120, and a filler plug 130. The water filling hole 111 is formed on the water tank upper cover 110, and the bottom of the water filling plug 130 is fastened in the water filling hole 111, so that the top end of the water filling plug 130 and the top surface of the water tank upper cover 110 form a part of the top surface of the floor brush. A water storage region is formed between the tank upper cover 110 and the tank lower cover 120, and a user injects liquid into the water storage region through the water injection port 111. Fig. 2 shows a schematic view of the inside of the water tank, and it can be understood that the water tank upper cover 110 is shown in a transparent state, or the water tank upper cover 110 is removed to show the internal structure of the water tank. As shown, the upper cover 110 is preferably made of a transparent material, and the change of the amount of water in the water storage area can be observed during use.

The tank lower case 120 includes an inclined portion and a horizontal portion connected to each other, a water injection port is positioned corresponding to the inclined portion, and a water outlet is provided on the horizontal portion. That is, the wall surface of the lower tank shell 120 is a downwardly inclined wall surface structure, so that the liquid in the water storage area can automatically flow to the position of the water outlet 125, which is beneficial to guiding the liquid. Specifically, the lower water tank shell 120 includes a first lower water tank shell 121, a second lower water tank shell 122, a third lower water tank shell 123 and a fourth lower water tank shell 124, wherein the first lower water tank shell 121, the second lower water tank shell 122, the third lower water tank shell 123 is a wall surface structure of a downward inclined shape, the water outlet 125 is positioned on the fourth lower water tank shell 124, the fourth lower water tank shell 124 is a planar wall surface structure, and is respectively connected with the first lower water tank shell 121, the second lower water tank shell 122, the edge of the third lower water tank shell 123, so that the liquid in the water storage area can automatically flow to the water outlet 125, and the flow guiding of the liquid is facilitated.

A water filling port 111 for filling water into the water storage region is located above the tank upper cover 110 at a position corresponding to the first tank lower case 121, the second tank lower case 122, and the third tank lower case 123. The top surface of the upper cover 110 of the water tank is recessed downward around the area outside the water filling port 111 to form a stepped portion, which forms a guide area 112 for the liquid. At least a part of the wall surface of the guide region 112 is formed as an inclined surface inclined toward the water injection port 111. The width of the inclined surface is larger than the radius of the water filling opening. When injecting liquid into the water injection port 111, if a small amount of liquid is dropped on the guide area 112 surrounding the outside of the water injection port 111, the small amount of liquid can enter the water storage area after being guided. In addition, in order to prevent the water gap from being blocked by impurities in the liquid, a separable filter screen is provided on the water injection port 111. Wherein, the filter screen is detachably positioned on the surface of the water filling port 111 or detachably positioned in the water filling port 111 and close to the top end of the water filling port 111.

As shown in fig. 5, a water amount adjusting switch 2001 is provided on the rear side of the housing 200, and is directed to an obliquely upper area of the housing 200, so that the user can easily adjust the water amount adjusting switch 2001.

The water amount adjusting switch 2001 is connected to the water valve 202, and controls the opening/closing of the water valve 202 and the amount of water supplied to the first and second cleaning assemblies 230 and 240 (see fig. 7) by manipulating the position of the water amount adjusting switch 2001. Wherein the water injection amount into the first and second cleaning assemblies 230 and 240 is adjusted by controlling the intermittent on-off time of the water valve 202.

An operating part 2002 is provided on an outer wall of the water quantity adjusting switch 2001, and the water quantity adjusting switch 2001 can be controlled by the operating part 2002 to slide in the sliding area, so as to operate the water valve 202 through the corresponding stop position.

When the manipulation part 2002 manipulates the staying position in the sliding area of the water amount adjustment switch 2001 to be close to the connection pipe 300, it indicates that the water valve stops the water delivery operation; when the control part 2002 controls the water quantity adjusting switch 2001 to stay in the middle of the sliding area in the sliding area, it indicates that the water valve 202 performs water delivery operation in a small water quantity mode; when the controller 2002 controls the stop position of the water amount adjusting switch 2001 in the sliding area to be close to the edge of the housing 200, it indicates that the water valve 202 performs the water delivery operation in the manner of a large water amount.

The operation part 2002 may be a protrusion protruding from the surface of the water amount adjustment switch 2001, a recess recessed from the surface of the water amount adjustment switch, or a rough layer attached to the surface of the water amount adjustment switch 2001. Preferably, the controller 2002 may be a protrusion protruding from the surface of the water amount adjusting switch 2001, so that the user can adjust the position of the water amount adjusting switch 2001 by hand or foot.

The fluid passages within the housing 200, the drive assembly and the cleaning assembly are described in detail below. As shown in fig. 6 to 10, a fluid path 210 is provided at the lower portion and inside of the cleaning brush, the fluid path extending to the side of the housing to form a side suction opening.

The fluid passage 210 includes a first flow path 211, a second flow path 212, a third flow path 213, and a plurality of front suction ports 214, wherein a front end of the first flow path 211 forms a fluid inlet W and includes a longitudinal axis a-a (in the front-rear direction), the second flow path 212 includes a lateral axis B-B (in the left-right direction), the first flow path 211 extends rearward through the interior of the housing 200 and communicates with the connection pipe 300, and the second flow path 212 and the third flow path 213 are both provided at a lower surface of the housing and communicate with the fluid inlet W. The fluid passageway further includes a plurality of front suction ports 214 provided at the front end of the lower surface of the housing 200 and communicating with the fluid inlet. The first flow path 211 and the second flow path 212 are both located on the rear side of the plurality of front suction ports. Preferably, the second channels 212 are disposed in pairs on both sides of the first channel 211, the third channels 213 are disposed in pairs on both sides of the first channel 211, and the third channels 213 are located on the rear side of the second channels 212.

The first flow path 211 and the second flow path 212 are both located at a rear side region of the front suction opening 214 in the cleaning floor brush 10, and are both communicated with the front suction opening 214, so that dust on the floor at the front end of the cleaning floor brush 10 enters the first flow path 211 through the front suction opening 214 and the second flow path 212, or directly enters the first flow path 211 through the front suction opening 214.

The first channel 211 includes a first channel 2111, a second channel 2112, and a third channel 2113 which are sequentially communicated with each other, the first channel 2111 is in contact with and communicated with the fluid inlet W, and the third channel 2113 is communicated with a channel in the connection pipe 300.

In addition, the fluid passage 210 further includes third flow paths 213, each of the third flow paths 213 is provided on both right and left sides of the cleaning floor brush 10, an outer end portion of the third flow path 213 extends to an outer side of the housing 200 to form a side suction port 215, and an inner end portion of the third flow path 213 communicates with the second flow path 212, so that dust sucked through the side suction port 215 sequentially enters the first flow path 211 through the third flow path 213 and the second flow path 212.

The third flow path 213 includes a lateral flow path 2131 and a curved flow path 2132 which communicate with each other, wherein a side suction port 215 is formed at an outer end portion of the lateral flow path 2131, one end of the curved flow path 2132 is connected to the other side of the lateral flow path 2131 where the side suction port 215 is formed, and the other end of the curved flow path 2132 is connected to the second flow path 212. The third flow passage 213 is located on the rear side of the second flow passage 212, and the lateral flow passage 2131 is substantially parallel to the second flow passage 212.

The housing 200 further includes a front wheel 260 at a bottom thereof, and the front wheel 260 is installed between the second flow path 212 and the third flow path 213. The dusty fluid in the second flow path 212 enters the first flow passage 2111 via the fluid inlet W and is eventually drawn into the cleaning apparatus communicating with the cleaning brush.

Fig. 11 shows a schematic view of a driving assembly of a cleaning brush according to an embodiment of the present invention, and as shown in the drawing, the driving assembly 220 includes a driving part 221, a first transmission assembly 222 and a second transmission assembly 223 respectively located at both sides of the driving part. The first transmission assembly 222 and the second transmission assembly 223 rotate the first cleaning assembly 230 and the second cleaning assembly 240 (see fig. 13).

Specifically, the driving part 221 includes a motor 2210, and a first driving shaft 2211 and a second driving shaft 2212 extending outward from both ends of the motor 2210. The first and second drive shafts 2211 and 2212 rotate about an axis C-C that is parallel to axis B-B and intersects axis a-a. The first transmission assembly 222 includes a first gear set 2220 and a first output shaft 2221, and the second transmission assembly 223 includes a second gear set 2230 and a second output shaft 2231.

Each of the first gear set 2220 and the second gear set 2230 includes a first gear and a second gear which are engaged with each other, the engaging portions of the first transmission shaft 2211 and the second transmission shaft 2212 are engaged with the first gears of the first gear set 2220 and the second gear set 2230, respectively, the second gears of the first gear set 2220 and the second gear set 2230 are coupled with the first output shaft 2221 and the second output shaft 2231, respectively, and the first output shaft 2221 and the second output shaft 2231 extend from the inside of the housing 200 to the bottom of the housing 200, so as to be disposed at the bottom of the housing 200.

The first output shaft 2221 is coupled to the first cleaning assembly 230, and the second output shaft 2231 is coupled to the second cleaning assembly 240, so as to respectively rotate the first cleaning assembly 230 and the second cleaning assembly 240. Drive member 221, first gear set 2220 and second gear set 2230 are located in drive assembly receptacle 201 between lower tank shell 120 and housing 200. The first and second tank lower cases 121 and 122 form top walls of the first and second gear sets 2220 and 2230, respectively.

At least a portion of the first flow path 211 is positioned above the motor 2210 and surrounds at least a portion of the motor 2210. The first flow channel 2111 is located in a front region of the motor 2210, and surrounds at least a part of a front end portion of the motor 2210. The second flow passage 2112 is located in an upper region of the motor 2210, and covers at least a part of an upper end portion of the motor 2210. The third flow channel 2113 is located in a rear region of the motor 2210, and surrounds at least a portion of a rear end portion of the motor 2210.

A water valve 202, a circuit board 203, a first water spraying part 204 and a second water spraying part 205 are also arranged in the driving component accommodating cavity 201. The water valve 202 and the circuit board 203 are respectively located at two sides of the connecting pipe 300, and the first water spraying part 204 and the second water spraying part 205 are respectively communicated with the water valve 202 and the water outlet 125 through pipes so as to guide the liquid in the water storage area out of the first cleaning component 230 and the second cleaning component 240, and wet the first cleaning component 230 and the second cleaning component 240 (see fig. 13) to wipe the ground.

Fig. 12 to 17 illustrate schematic views of the cleaning assemblies, and as shown in the figures, the first cleaning assembly 230 and the second cleaning assembly 240 are disposed at the bottom of the housing 200 through the first output shaft 2221 and the second output shaft 2231, respectively.

Generally speaking, the cleaning assembly sets up in the bottom of casing 200 and is connected with drive assembly 220, the cleaning assembly includes rotary disk and the separable clean portion that sets up in the rotary disk bottom, wherein, the rotary disk includes cyclic annular portion, the reference column, cyclic annular board and a plurality of bar shaped plate, the both ends of reference column are connected with drive assembly and clean portion respectively, the reference column outwards connects cyclic annular portion and cyclic annular board in proper order through a plurality of bar shaped plate of radial arrangement, cut apart by a plurality of bar shaped plate and form a plurality of through-holes that permeate water between reference column and cyclic annular portion, the height that highly is greater than the cyclic annular board of cyclic annular portion. The annular part can comprise a first annular part and a second annular part, the second annular part is sleeved outside the positioning column and is connected with the positioning column and the first annular part through a strip-shaped plate, and the annular plate is connected to the outer side of the first annular part.

Specifically, the first cleaning assembly 230 includes a first rotating disk 231 and a first cleaning part 232 detachably disposed at a bottom end of the first rotating disk 231, and the second cleaning assembly 240 includes a second rotating disk 241 and a second cleaning part 242 detachably disposed at a bottom end of the second rotating disk 241.

The first rotary disk 231 and the second rotary disk 241 have the same structure, and the first rotary disk 231 will be described as an example. The first rotating disc 231 includes a first annular portion 2311, a second annular portion 2312, an annular plate 2313, a positioning column 2314 and a plurality of strip-shaped plates 2315. A plurality of strip plates 2315 surround the outer sides of the positioning columns 2314, and one ends of the strip plates 2315 are connected with the positioning columns 2314. The annular plate 2313 sequentially surrounds the outer sides of the second annular portion 2312 and the first annular portion 2311, and the plurality of strip-shaped bodies are connected with the second annular portion 2312, the first annular portion 2311 and the annular plate 2313 respectively.

A plurality of attachment portions are provided on a bottom end surface of the annular plate 2313, and the first cleaning portion 232 is detachably provided on the bottom of the first rotating disk 231 by the attachment portions.

A through hole 2316 is formed between the two adjacent strip-shaped plates 2315 and the first annular portion 2311 and the second annular portion 2312 which are corresponding in position, and the orthographic projection position of the first water-spraying part 204 is located above the through hole between the first annular portion 2311 and the second annular portion 2312.

The first and second ring portions 2311 and 2312 form a water blocking portion, so that water sprayed from the first water spray part 204 is not thrown onto the ring plate 2313 outside the first ring portion 2311, and falls into the first cleaning part 232 therebelow through the through hole 2316, thereby preventing water from being wasted.

However, in order to further improve the water blocking effect, the height of the top end portion of the first annular portion 2311 may be increased such that the height of the top end portion of the first annular portion 2311 is higher than the height of the top end portion of the second annular portion 2312.

The top end of the positioning column 2314 is provided with an inward concave mounting groove 2317, and the positioning column 2314 is positioned below the rotating disc.

A positioning hole 2321 capable of being sleeved outside the positioning column 2314 is formed in the center of the first cleaning portion 232.

The first cleaning part 232 has a disk-like structure, which includes an absorption layer 2322, a cleaning layer 2323 disposed at the bottom thereof, and a sewing part 2324 surrounding the outer sides of the edges of the absorption layer and the cleaning layer.

The height of the positioning posts 2314 is smaller than the thickness of the cleaning layer 2323, and when the cleaning layer 2323 is assembled with the first rotating disk 231, the positioning holes 2321 are sleeved on the positioning posts 2314, so that the cleaning layer 2323 can be assembled and positioned conveniently, and the cleaning layer 2323 can be uniformly arranged at the bottom of the first rotating disk 231.

The absorption layer 2322 not only can absorb the water ejected from the first water-ejection part 204, but also can be used in connection with the attachment part on the first rotating disk 231 to dispose the first cleaning part 232 at the bottom of the first rotating disk 231. Here, the thickness of the absorption layer 2322 is greater than that of the cleaning layer 2323, so that a large amount of moisture can be absorbed and injected into the cleaning layer 2323.

The second rotating disk 241 has the same structure as the first rotating disk 231, and will not be described herein.

Other embodiments of the utility model also provide a cleaning device, including the clean scrubbing brush, extension pipe and the dust collecting equipment of above-mentioned structure.

The embodiment of the utility model provides a, having add the outside that extends to the casing again and formed the side suction inlet on the basis of the first flow path of current in the bottom of scrubbing brush and second flow path, can also clean the dust of scrubbing brush both sides through this side suction inlet, improve the clean effect to ground. Because the water quantity regulating switch is positioned on the floor brush, the hands of the user can be released, and the fatigue of the hands of the user is prevented from being increased. In addition, through the intermittent type formula on-off time of control water valve, more do benefit to the regulation to the water injection volume in first clean subassembly and the clean subassembly of second. Through add the reference column in the below of rotary disk and increase matched with locating hole on clean layer, be convenient for carry out the positioning to clean layer assembly for the setting that clean layer can be even is in the bottom of rotary disk, avoids two clean layers to bump at rotatory in-process, with the influence to the effect of cleaning on ground. Because the guide area of water injection hole is the inclined plane structure, when pouring into liquid into the water injection hole, if there is the minority liquid to be dripped on the guide area around the water injection hole outside, make the minority liquid can get into in the water storage area after the direction. In addition, in order to avoid the water gap from being blocked by impurities in the liquid, a separable filter screen is arranged on the water injection hole. Wherein, the filter screen is detachably positioned on the surface of the water filling port or is detachably arranged in the water filling port and is close to the top end of the water filling port. The annular water retaining part is added on the rotating disk, so that the water sprayed from the water spraying part cannot be thrown to the annular plate on the outer side of the water retaining part, and then falls into the cleaning part below the water retaining part through the through hole, and the waste of the water is avoided.

Although the preferred embodiments of the present application have been described, those skilled in the art may make various modifications and alterations to the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. Thus, such modifications and variations are intended to be included herein within the scope of this disclosure.

Claims (10)

1. A cleaning floor brush with a side suction opening is characterized by comprising a shell, a driving assembly and a connecting pipe, wherein the connecting pipe is connected above the shell, the driving assembly is arranged in the shell, a fluid channel is further arranged in the shell and is communicated with the connecting pipe, and the fluid channel extends to the side edge of the shell to form the side suction opening.

2. The cleaning floor brush as claimed in claim 1, wherein the fluid passage includes a first flow path, a second flow path and a third flow path, a front end of the first flow path forms the fluid inlet, the first flow path extends backward through the inside of the housing and communicates with the connection pipe, and the second flow path and the third flow path are provided at a lower surface of the housing and communicate with the fluid inlet.

3. The cleaning floor brush of claim 2, wherein the fluid path further includes a plurality of front suction openings provided at a front end of the lower surface of the housing and communicating with the fluid inlet.

4. The cleaning floor brush of claim 2, wherein the first flow path and the second flow path are both located rearward of the plurality of front suction openings.

5. The cleaning floor brush as claimed in claim 4, wherein the second flow paths are disposed in pairs on both sides of the first flow paths, and the third flow paths are disposed in pairs on both sides of the first flow paths, the third flow paths being located on a rear side of the second flow paths.

6. The cleaning brush of any of claims 2-5, wherein the third flow path comprises a lateral flow path and a curved flow path in communication, wherein the lateral flow path is substantially parallel to the second flow path.

7. A cleaning floor brush according to claim 6 wherein the outer end of the transverse flow path extends to the side edge of the housing to form a side suction opening, one end of the curved flow path being connected to the inner end of the transverse flow path and the other end of the curved flow path being connected to the second flow path.

8. The cleaning floor brush of claim 2, further comprising a front wheel body at a bottom of the housing, the front wheel body being mounted between the second flow path and the third flow path.

9. The cleaning floor brush as claimed in claim 2, wherein the first flow path includes a first flow path, a second flow path and a third flow path which are connected in series, the first flow path extends from the fluid inlet to the upper rear portion in the housing, the second flow path is located above the driving unit, and the third flow path extends from the second flow path to the connecting pipe to the lower rear portion.

10. A cleaning device, characterized in that the cleaning device comprises a dust suction device, an extension pipe and a cleaning floor brush according to any one of claims 1 to 9, which are connected to each other.

Images