CN212661755U

CN212661755U - Floor cleaning accessory

Info

Publication number: CN212661755U
Application number: CN202021363773.3U
Authority: CN
Inventors: 卞庄
Original assignee: Suzhou EUP Electric Co Ltd
Current assignee: Suzhou EUP Electric Co Ltd
Priority date: 2019-11-20
Filing date: 2020-07-13
Publication date: 2021-03-09
Anticipated expiration: 2030-07-13
Also published as: CN112823729A

Abstract

The utility model discloses a floor cleaning accessory, which comprises a cleaning main body with a dust suction port at the bottom, wherein a dust suction air duct for leading the air flow sucked through the dust suction port to the rear part of the cleaning main body is arranged in the cleaning main body; the floor mopping device comprises at least one pair of cleaning cloth rotating discs arranged at the lower part of a cleaning main body and a power mechanism used for driving the cleaning cloth rotating discs to rotate relative to the cleaning main body, wherein the power mechanism comprises a motor and a power transmission unit in transmission connection with the motor; and a water supply device including a water storage tank mounted on the cleaning main body and a distribution unit for distributing water in the water storage tank to at least one pair of cloth disks. Therefore, the structure layout is more compact, the cleaning effect of the cleaning cloth can be ensured on the premise of not influencing the suction force of the dust suction port, and the dust collector is worthy of popularization and use.

Description

Floor cleaning accessory

Technical Field

The utility model relates to a cleaning device technical field, in particular to a ground cleaning accessory for assembling to vacuum cleaner.

Background

In daily life, people usually use a vacuum cleaner to clean indoor floor, suck dust particles on the floor, and the like. However, when stubborn stains appear on the floor, the floor cannot be cleaned thoroughly by only a general vacuum cleaner. At this time, a wet cleaning machine with a washing function is required to clean stubborn stains.

Recently, more and more floor cleaning accessories are on the market that are capable of vacuum cleaning and mopping in conjunction with attachment to a vacuum cleaning apparatus. Typical accessory categories include: (1) chinese patent publication No. CN109832998A discloses a nozzle for a floor cleaning device suitable for wet cleaning and dry cleaning, which can continuously wet a cloth by continuously supplying water to the cloth, and can simultaneously perform vacuum cleaning and mopping with water on the floor; (2) patent application publication No. CN109832998A discloses a cleaner head device capable of performing cleaning of liquid by simple combination with a dry vacuum cleaner which is commonly provided in homes, the cleaner head device carrying a roll brush, a clean water tank, and a dirty liquid tank. When the cleaning head works, water in the clean water tank is continuously conveyed to the rolling brush by the pump, and then stubborn stains are frequently removed by the cooperation of the water and the rolling brush. The cleaning head device can well expand the functions of a common dry vacuum cleaner, so that a user can realize the wet cleaning function without additionally purchasing an expensive wet cleaning machine; (3) the suction brush with a floor-wiping cloth for a vacuum cleaner disclosed in publication No. CN1939202A, which can perform a floor-wiping function while performing vacuum cleaning due to a mop support plate capable of automatically wiping the floor provided at the bottom thereof,

the two accessories have the defects, the first one is that the cleaning cloth is completely pushed by a user manually to realize mopping work, and the cleaning force on stubborn stains on the ground is low; secondly, the water is mainly supplied to the rolling brush at a large flow rate continuously, which causes difficulty in controlling the amount of water remained on the ground, so that a user needs to wait for a period of drying time before entering a cleaned area after cleaning work is performed by using the accessories; thirdly, in order to reduce the overstaffed of the equipment, a power device is required to be arranged on the suction brush, except that a water tank is omitted, a sewage suction channel for air flow flowing in the suction brush is narrow, and the suction efficiency is low; therefore, either of the above influences the user experience.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims to provide a ground cleaning accessory with compact structure layout.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

a floor cleaning accessory adapted to be mounted for use on a vacuum cleaning appliance, comprising:

the cleaning device comprises a cleaning main body, a dust collecting device and a dust collecting device, wherein the bottom of the cleaning main body is provided with a dust collecting opening, and a dust collecting air duct for introducing airflow sucked through the dust collecting opening to the rear part of the cleaning main body is arranged in the cleaning main body;

the floor mopping device comprises at least one pair of cleaning cloth rotating discs arranged at the lower part of the cleaning main body and a power mechanism used for driving the cleaning cloth rotating discs to rotate relative to the cleaning main body, wherein the power mechanism comprises a motor and a power transmission unit in transmission connection with the motor, the dust collection air channel extends in the front-back direction and is arranged at the middle position of the cleaning main body, the motor is biased at the left side or the right side of the dust collection air channel, and at least part of the power transmission unit is positioned above or below the dust collection air channel;

and the water supply device comprises a water storage tank arranged on the cleaning main body and a distribution unit used for distributing the water in the water storage tank to at least one pair of rag turnplates.

In the above technical scheme, preferably, the floor mopping device includes a pair of the cleaning cloth turntables, the power transmission unit includes a first power output end, a second power output end and a connection part located between the first power output end and the second power output end, the first power output end and the second power output end are respectively connected with the pair of the cleaning cloth turntables, and the connection part is located above or below the dust collection air duct.

In the above technical solution, preferably, the power transmission unit includes a worm/worm gear reduction gear assembly connected to the motor and a transmission gear assembly in meshing transmission with the worm/worm gear reduction gear assembly.

In the above technical solution, preferably, the power mechanism includes a housing, and the motor and the power transmission unit are both enclosed in the housing.

In the above technical solution, preferably, the power mechanism is configured as a modular whole.

In the above technical solution, preferably, the power mechanism includes a first box and a second box, the motor and the worm/worm gear reduction gear assembly are enclosed in the first box, and the transmission gear assembly is enclosed in the second box.

In the above technical solution, preferably, the cleaning main body includes a bottom plate and an upper cover which are combined up and down, a chamber is defined between the bottom plate and the upper cover, and the dust collection duct is located in the chamber.

In the above technical solution, preferably, the power mechanism is mounted on the lower surface of the bottom plate.

In the above technical solution, preferably, the power mechanism is located in the cavity and is mounted on the upper surface of the bottom plate or the inner wall surface of the upper cover.

In the above technical solution, preferably, the power transmission unit includes a belt transmission speed reduction assembly connected to the motor and a worm gear transmission assembly connected to the belt transmission speed reduction assembly.

In the above technical solution, preferably, the worm gear transmission assembly includes a worm supported on the bottom plate, and helical gears in the same number as the cleaning cloth turntable, and each helical gear is engaged with the worm; each cleaning cloth turntable and the corresponding bevel gear are coaxially arranged, so that the bevel gear can drive the corresponding cleaning cloth turntable to rotate.

In the above technical solution, preferably, the belt transmission speed reduction assembly includes a driving wheel coaxially mounted on the output shaft of the motor, a driven wheel coaxially mounted on the worm, and a transmission belt connected between the driving wheel and the driven wheel.

In the above technical solution, preferably, the worm extends in the left-right direction and is located above or below the dust collection duct.

In the above technical solution, preferably, an output shaft axis of the motor extends in a horizontal direction.

In the above technical solution, preferably, the rotation axis of at least one pair of the rag turnplates extends in the vertical direction.

In the above technical solution, preferably, the cleaning cloth turntable includes a tray body and a cleaning cloth detachably attached to a lower surface of the tray body.

In the above technical scheme, preferably, the tray body is hollowed, and the distribution unit includes a plurality of water outlets communicated with the outside; the water outlet is configured to be positioned above the corresponding disc body, so that water flowing out of the water outlet can pass through the hollowed disc body and then be applied to the cleaning cloth.

In the above technical solution, preferably, the lower bottom of the cleaning main body is further provided with a plurality of support wheels located near the dust suction port, and the support wheels can keep the distance between the dust suction port and the ground to be cleaned.

In the above technical scheme, preferably, the power transmission unit is provided with output connection parts with the same number as the cleaning cloth turntables, and each cleaning cloth turntable is connected with the corresponding output connection part.

Among the above-mentioned technical scheme, it is preferred, the top of rag carousel is provided with the connection projection, output connecting portion include the connecting hole, the connection projection detachably combine to in the connecting hole.

In the above technical solution, preferably, at least a portion of the water storage tank is made of a transparent material, so that when the water storage tank is mounted on the cleaning main body, a user can observe the inside of the water storage tank.

In the above technical solution, preferably, the water storage tank is detachably mounted on the top of the cleaning main body.

In the above technical solution, preferably, the dispensing unit includes a micro pump connected to the water storage tank for pumping out the water stored in the water storage tank.

In the above technical solution, preferably, the distribution unit includes a valve, and the valve is connected in series in a water output pipeline with one end connected to the water storage tank to control on and off of the water output pipeline.

The utility model discloses a clean annex in ground is through extending the dust absorption wind channel along the fore-and-aft direction and arranging the middle part position in clean main part, the motor biasing is on the left side or the right side in dust absorption wind channel, the power transmission unit is located the top or the below in dust absorption wind channel, the storage water tank is installed in clean main part and through the distribution unit with water supply to the rag carousel on, thereby compacter in structural configuration, space utilization is higher, under the prerequisite that does not influence dust absorption mouth suction, can also guarantee the clean effect of rag, be worth using widely.

Drawings

FIG. 1 is a perspective view of the floor cleaning attachment of the present invention;

FIG. 2 is a schematic view of an exploded view of the floor cleaning attachment of the present invention;

FIG. 3 is a schematic sectional top view of the floor cleaning attachment of embodiment 1 of the present invention with the water tank omitted;

FIG. 4 is a front sectional view of the floor cleaning attachment of embodiment 1 of the present invention, with the water tank omitted;

FIG. 5 is a schematic sectional top view of the floor cleaning attachment of embodiment 2 of the present invention with the water tank omitted;

FIG. 6 is a front sectional view of the floor cleaning attachment of embodiment 2 of the present invention, with the water tank omitted;

wherein: 100. a floor cleaning accessory;

1. cleaning the main body; 11. a base plate; 12. an upper cover; 13. a chamber; 14. a dust suction port; 15. a dust collection air duct; 16. a connecting pipe;

2. a floor mopping device; 21. a rag turntable; 211. a tray body; 212. a wipe; 213. connecting the convex columns; 22. a motor; 23. a worm/worm gear reduction gear assembly; 231. a worm; 232. a worm gear; 233. a reduction gear; 24. a transmission gear assembly; 241. a transmission gear; 25. a belt drive reduction assembly; 251. a driving wheel; 252. a driven wheel; 253. a drive belt; 26. a worm gear drive assembly; 261. a worm; 262. a helical gear; 27. an output connection;

3. a water supply device; 31. a water storage tank; 321. and (7) a water outlet.

Detailed Description

To explain the technical content, structural features, achieved objects and functions of the present invention in detail, the following detailed description is made with reference to the accompanying drawings. Wherein, the up, down, front, rear, left, and right directions described in the following embodiments correspond to the respective positional relationships shown in fig. 1 to 4 and fig. 5 to 6, respectively.

Example 1

As shown in fig. 1 and 2, a floor cleaning accessory 100 is provided which is capable of performing both vacuum cleaning and wet cleaning functions when coupled to a vacuum cleaning device known in the art, such as a vacuum cleaner. The floor cleaning attachment 100 includes a cleaning main body 1, a floor wiping device 2, and a water supply device 3. The cleaning main body 1 has a dust suction function, and the water supply device 3 is used for supplying water to the floor scrubbing device 2 to scrub the floor to be cleaned.

As shown in fig. 3 and 4, the cleaning main body 1 includes a bottom plate 11 and an upper cover 12 which are combined up and down, a chamber 13 is defined between the bottom plate 11 and the upper cover 12, a dust suction port 14 facing the floor is provided at the front side of the bottom of the cleaning main body 1, a dust suction duct 15 for introducing an air flow sucked through the dust suction port 14 to the rear of the cleaning main body 1 is provided inside the cleaning main body 1, and the dust suction duct 15 is disposed in the chamber 13 and extends in the front-rear direction. The cleaning main body 1 is also provided at the rear thereof with a connecting tube 16, one end of the connecting tube 16 being in airflow communication with the dust suction duct 15, and the other end being available for communication with a suction unit of the vacuum cleaner via a suction duct, thereby providing suction from the dust suction opening 14 into the dust suction duct 15.

In order not to affect the suction force of the dust suction opening 14, a plurality of support wheels (not shown) are disposed at the bottom of the cleaning main body 1 near the dust suction opening 14, and the support wheels can keep the dust suction opening 14 away from the floor to be cleaned.

The floor mopping device 2 comprises a pair of rag rotating discs 21 arranged at the lower part of the cleaning body and a power mechanism for driving the pair of rag rotating discs 21 to rotate relative to the cleaning body 1. Specifically, the rotation axes of the pair of wiper rotors 21 extend in the vertical direction. Each of the cloth turn tables 21 includes a table body 211 and cloth 212 detachably attached to the lower surface of the table body 211.

The power mechanism is installed on the upper surface of the bottom plate 11 and includes a motor 22 and a power transmission unit in transmission connection with the motor 22, the motor 22 is offset at the left side of the dust collection air duct 15, and the power transmission unit is located below the dust collection air duct 15. Specifically, the shaft axis of the motor 22 extends in the horizontal direction, and the power transmission unit includes a worm/worm gear reduction gear assembly 23 connected to the motor 22 and a transmission gear assembly 24 in meshing transmission with the worm/worm gear reduction gear assembly 23. The worm/worm gear reduction gear assembly 23 includes a worm 231, a worm wheel 232, a pair of reduction gears 233, and four transmission gears 241, wherein the worm 231 is coaxially installed on the output shaft of the motor 22, the worm wheel 232 is installed in the chamber 13 of the cleaning main body 1 and is in mesh transmission with the worm 231, one reduction gear of the pair of reduction gears 233 is installed in the chamber 13 of the cleaning main body 1 and is in mesh transmission with the worm wheel 232, and the other reduction gear is in mesh transmission with the transmission gear 241 adjacent to the worm wheel 232 and is coaxially disposed. The four transmission gears 241 are sequentially meshed for transmission, and the transmission gears 241 positioned on the left side and the right side and the pair of rag turnplates 21 are coaxially arranged; that is, of the four transmission gears 241, the two transmission gears 241 located at the left and right sides constitute two power output ends for transmitting power to the outside, and the two transmission gears 241 in the middle constitute a connection portion for connecting the two power output ends, which passes through the lower portion of the dust collection duct 15, that is, which is located below the dust collection duct 15. The rotating directions of the pair of cloth rotating discs 21 are opposite under the driving of the power mechanism. In this embodiment, the power mechanism is installed in the housing of the cleaning main body 1 as an integral structure, and in other embodiments, in order to facilitate installation, replacement and maintenance of the motor 22, the worm/worm gear reduction gear assembly 23 and the transmission gear assembly 24, the power mechanism may not be provided as a modular integral structure, or may be provided separately, for example, the power mechanism includes a housing, and the motor 22 and the power transmission unit are both enclosed in the housing. Or, the power mechanism comprises a first box and a second box, the motor 22 and the worm/worm gear reduction gear assembly 23 are packaged in the first box, and the transmission gear assembly 24 is packaged in the second box. Alternatively, the power mechanism is mounted on the inner wall surface of the upper cover 12 or the lower surface of the bottom plate 11.

In order to facilitate the assembly of the rag rotating discs 21 and the transmission gear assembly 24, the power transmission unit is provided with output connection parts 27 with the same number as the rag rotating discs 21, and each rag rotating disc 21 is respectively connected with the corresponding output connection part 27. Specifically, the top of the cloth turntable 21 is provided with a coupling boss 213, and the output connection part 27 includes a connection hole into which the coupling boss 213 is detachably coupled.

The water supply device 3 includes a water storage tank 31 installed on the cleaning main body 1 and a dispensing unit for dispensing water in the water storage tank 31 onto the pair of cloth disks 21. Specifically, the tray body 211 is hollow, and the distribution unit includes a plurality of water outlets 321 communicated with the outside; the water outlets 321 are disposed above the corresponding tray 211, so that water flowing out of the water outlets 321 can pass through the hollow tray 211 and be applied to the cloth 212.

The water storage tank 31 is at least partially made of a transparent material so that when the water storage tank 31 is mounted on the cleaning main body 1, a user can observe the water consumption inside the water storage tank 31, thereby facilitating timely water supply or detergent addition. The water storage tank 31 is detachably installed at the top of the cleaning main body 1. The dispensing unit comprises a micro-pump connected to the storage tank 31 for pumping out the water stored in the storage tank 31. The dispensing unit comprises a valve connected in series in a water outlet line connected at one end to the water storage tank 31 to control the on and off of the water outlet line.

Example 2

As shown in fig. 5 and 6, the same parts of this embodiment as those of embodiment 1 are not described again, and the differences from embodiment 1 are the layout of the power mechanism and the structural composition of the power transmission unit. Specifically, the power transmission unit includes a belt-driven reduction assembly 25 connected to the motor 22 and a worm-gear drive assembly 26 connected to the belt-driven reduction assembly 25. The worm gear assembly 26 includes a worm 261 supported on the base plate 11, and a plurality of bevel gears 262 corresponding to the number of the wiper rotors 21, each of the bevel gears 262 being engaged with the worm 261. Each rag rotating disc 21 is coaxially arranged with the corresponding bevel gear 262, so that the bevel gear 262 can drive the corresponding rag rotating disc 21 to rotate. The belt-driven speed reduction assembly 25 includes a driving wheel 251 coaxially mounted on the output shaft of the motor 22, a driven wheel 252 coaxially mounted on the worm 261, and a drive belt 253 connected between the driving wheel 251 and the driven wheel 252. The worm 261 extends in the left-right direction and is located above the dust suction duct 15; that is, the two bevel gears 262 constitute two power output terminals for transmitting power to the outside, the worm 261 constitutes a connecting portion connecting the two power output terminals, and the worm 261 passes over the dust suction duct 15.

In order to facilitate the assembly of the cloth turntables 21 with the worm gear transmission assembly 26, the power transmission unit is provided with output connection parts 27 in the same number as the cloth turntables 21, and each cloth turntable 21 is connected with the corresponding output connection part 27. Specifically, the top of the cloth turntable 21 is provided with a coupling boss 213, and the output connection part 27 includes a connection hole into which the coupling boss 213 is detachably coupled.

In the above embodiments, the number of the cloth discs is designed to be one pair, and for the purpose of improving the cleaning effect, the number of the cloth discs is not limited to one pair, and may be multiple pairs arranged in a matrix. And the ground cleaning accessories are all extended along the front-back direction through the dust collection air channel and are arranged in the middle position of the cleaning main body, the motor is biased on the left side or the right side of the dust collection air channel, the power transmission unit is positioned above or below the dust collection air channel, the water storage tank is installed on the cleaning main body and supplies water to the cleaning cloth turntable through the distribution unit, so that the structure layout is more compact, the space utilization rate is higher, the cleaning effect of the cleaning cloth can be ensured on the premise of not influencing the suction force of the dust collection opening, and the ground cleaning accessories are worthy of popularization and use.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A floor cleaning attachment adapted to be mounted for use on a vacuum cleaning appliance, comprising:

the cleaning device comprises a cleaning main body (1) with a dust suction port (14) at the bottom, wherein a dust suction air duct (15) for introducing air flow sucked through the dust suction port (14) to the rear part of the cleaning main body (1) is arranged in the cleaning main body (1);

the floor mopping device (2) comprises at least one pair of rag rotating discs (21) arranged at the lower part of the cleaning main body (1) and a power mechanism used for driving the rag rotating discs (21) to rotate relative to the cleaning main body (1), wherein the power mechanism comprises a motor (22) and a power transmission unit in transmission connection with the motor (22), the dust collection air duct (15) extends in the front-back direction and is arranged at the middle position of the cleaning main body (1), the motor (22) is biased at the left side or the right side of the dust collection air duct (15), and at least part of the power transmission unit is positioned above or below the dust collection air duct (15);

the water supply device (3) comprises a water storage tank (31) arranged on the cleaning main body (1) and a distribution unit used for distributing water in the water storage tank (31) to at least one pair of rag turntables (21).

2. A floor cleaning attachment according to claim 1 wherein: the floor mopping device comprises a pair of cleaning cloth rotating discs (21), the power transmission unit comprises a first power output end, a second power output end and a connecting part located between the first power output end and the second power output end, the first power output end and the second power output end are respectively connected with the pair of cleaning cloth rotating discs (21), and the connecting part is located above or below the dust collection air duct (15).

3. A floor cleaning attachment according to claim 1 wherein: the power transmission unit comprises a worm/worm gear reduction gear assembly (23) connected to the motor (22) and a transmission gear assembly (24) in meshing transmission with the worm/worm gear reduction gear assembly (23).

4. A floor cleaning attachment according to claim 1 or 2, wherein: the power mechanism comprises a shell, and the motor (22) and the power transmission unit are all packaged in the shell.

5. A floor cleaning attachment according to claim 3 wherein: the power mechanism is arranged into a modularized whole.

6. A floor cleaning attachment according to claim 3 wherein: the power mechanism comprises a first box body and a second box body, the motor (22) and the worm/worm gear reduction gear assembly (23) are packaged in the first box body, and the transmission gear assembly (24) is packaged in the second box body.

7. A floor cleaning attachment according to claim 1 wherein: the cleaning main body (1) comprises a bottom plate (11) and an upper cover (12) which are combined up and down, a chamber (13) is defined between the bottom plate (11) and the upper cover (12), and the dust collection air duct (15) is positioned in the chamber (13).

8. A floor cleaning attachment according to claim 7 wherein: the power mechanism is arranged on the lower surface of the bottom plate (11).

9. A floor cleaning attachment according to claim 7 wherein: the power mechanism is positioned in the cavity (13) and is arranged on the upper surface of the bottom plate (11) or the inner wall surface of the upper cover (12).

10. A floor cleaning attachment according to claim 7 wherein: the power transmission unit comprises a belt transmission speed reducing assembly (25) connected to the motor (22) and a worm gear transmission assembly (26) connected with the belt transmission speed reducing assembly (25).

11. A floor cleaning attachment according to claim 10 wherein: the worm gear transmission assembly (26) comprises a worm (261) supported on the bottom plate (11) and bevel gears (262) with the number consistent with that of the rag turnplates (21), and each bevel gear (262) is meshed with the worm (261); each cleaning cloth rotating disc (21) and the corresponding bevel gear (262) are coaxially arranged, so that the bevel gear (262) can drive the corresponding cleaning cloth rotating disc (21) to rotate.

12. A floor cleaning attachment according to claim 11 wherein: the belt transmission speed reducing assembly (25) comprises a driving wheel (251) coaxially mounted on an output shaft of the motor (22), a driven wheel (252) coaxially mounted on the worm (261), and a transmission belt (253) connected between the driving wheel (251) and the driven wheel (252).

13. A floor cleaning attachment according to claim 12 wherein: the worm (261) extends along the left-right direction and is positioned above or below the dust collection air duct (15).

14. A floor cleaning attachment according to claim 1 wherein: the axial lead of the output shaft of the motor (22) extends along the horizontal direction.

15. A floor cleaning attachment according to claim 1 wherein: the rotating axes of at least one pair of the rag rotating discs (21) extend along the vertical direction.

16. A floor cleaning attachment according to claim 1 wherein: the rag turntable (21) comprises a turntable body (211) and a rag (212) which is detachably attached to the lower surface of the turntable body (211).

17. A floor cleaning attachment according to claim 16 wherein: the tray body (211) is hollow, and the distribution unit comprises a plurality of water outlets (321) communicated with the outside; the water outlet (321) is configured to be positioned above the corresponding disc body (211), so that water flowing out of the water outlet (321) can pass through the hollowed disc body (211) and then be applied to the cleaning cloth (212).

18. A floor cleaning attachment according to claim 1 wherein: the lower bottom of the cleaning main body (1) is also provided with a plurality of supporting wheels which are positioned near the dust suction opening (14), and the supporting wheels can keep the distance between the dust suction opening (14) and the ground to be cleaned.

19. A floor cleaning attachment according to claim 1 wherein: the power transmission unit is provided with output connecting parts (27) with the same number as the rag turnplates (21), and each rag turnplate (21) is respectively connected with the corresponding output connecting part (27).

20. A floor cleaning attachment according to claim 19 wherein: the top of rag carousel (21) is provided with connecting convex column (213), output connecting portion (27) including the connecting hole, connecting convex column (213) detachably combine to in the connecting hole.

21. A floor cleaning attachment according to claim 1 wherein: the water storage tank (31) is at least partially made of transparent material so that a user can observe the inside of the water storage tank (31) when the water storage tank (31) is mounted on the cleaning main body (1).

22. A floor cleaning attachment according to claim 1 or 19 wherein: the water storage tank (31) is detachably mounted on the top of the cleaning main body (1).

23. A floor cleaning attachment according to claim 1 wherein: the dispensing unit comprises a micro-pump connected to the storage tank (31) for pumping out the water stored in the storage tank (31).

24. A floor cleaning attachment according to claim 1 wherein: the distribution unit comprises a valve, and the valve is connected in series in a water output pipeline with one end connected to the water storage tank (31) so as to control the on and off of the water output pipeline.