CN115530689A

CN115530689A - Floor cleaning device

Info

Publication number: CN115530689A
Application number: CN202110740073.4A
Authority: CN
Inventors: 不公告发明人
Original assignee: Suzhou Ruijiu Intelligent Technology Co ltd
Current assignee: Suzhou Ruijiu Intelligent Technology Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-12-30

Abstract

The invention discloses a floor cleaning device, which comprises a cleaning base, wherein the cleaning base comprises: the seat body is provided with a front part, a rear part, a first side part and a second side part which are opposite; the brush roll can be rotatably arranged on the seat body around the axis of the brush roll and is positioned between the first side part and the second side part; a side brush chamber located at the first side portion, the side brush chamber having an opening opened toward an outer side of the first side portion, a lower opening facing a floor to be cleaned, and a front opening facing a front side; the side brush can be rotatably supported in the side brush cavity around a horizontal axis, the horizontal axis is collinear with the axis of the brush roll, and the side brush comprises a brush seat and a cleaning piece arranged on the brush seat; the outer side part of the cleaning piece is exposed from the opening; a lower portion of the cleaning member projecting downwardly from the lower opening and contacting the floor to be cleaned; a front portion of the cleaning member emerges from the front opening. The floor cleaning device can clean the floor, the wall root position close to the floor and the corner of the wall by the brush roller and the side brush.

Description

Floor cleaning device

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to a ground cleaning device.

Background

Surface cleaning devices, in particular upright surface cleaning devices, clean and soil pick-up a surface to be cleaned by using a cleaning base with a brush roller. In operation of such machines, cleaning liquid is applied to the surface to be cleaned by the rotating brush roller, which, during rotation, is capable of simultaneously picking up dirt and debris from the floor to be cleaned together with the suction force of the suction device and storing it in a dirt tank on the upright body.

The advantages are evident when the machine of the above type is used for cleaning on normal ground; but subject to the construction of a cleaning base which, if it encounters the floor at the corner of a wall, is not sufficiently cleaning, the user needs to resort to other tools and expend time and effort to clean these areas in addition, which not only reduces the cleaning efficiency of the cleaning device; and changing the cleaning tool for additional cleaning is quite cumbersome for the operator.

Disclosure of Invention

In order to solve the problem of insufficient cleaning ability, the present invention provides an improved floor cleaning device.

In order to achieve the above object, the present invention provides the following technical solutions: a floor cleaning apparatus comprising a cleaning base adapted to be moved over a floor surface to be cleaned, the cleaning base comprising:

the seat body is provided with a front part, a rear part, a first side part and a second side part which are opposite;

the brush roll can be arranged on the seat body in a rotating mode around the axis of the brush roll and is positioned between the first side part and the second side part;

a side brush chamber located at the first side portion, the side brush chamber having an opening opened toward an outer side of the first side portion, a lower opening facing a floor to be cleaned, and a front opening facing a front side; and

the side brush can be rotatably supported in the side brush cavity around a horizontal axis, the horizontal axis is collinear with the axis of the brush roll, and the side brush comprises a brush seat and a cleaning piece arranged on the brush seat; the outer side part of the cleaning piece is exposed from the opening; a lower portion of said cleaning member projecting downwardly from said lower opening and contacting the floor surface to be cleaned; the front portion of the cleaning member is exposed from the front opening.

In the above technical solution, preferably, the cleaning base further includes: a sealing member located on the first side portion and located outside the side brush chamber, the cleaning member being defined inside the sealing member.

In the above technical solution, preferably, the cleaning base includes: a brush roller chamber having a lower opening at a lower portion from which a lower portion of the brush roller protrudes to contact the ground and a front opening at a front portion from which the front portion of the brush roller is exposed.

In the above technical solution, preferably, the cleaning member includes a plurality of bristle tufts. Further preferably, the cleaning member includes a plurality of wipers, and the radial length of the plurality of bristle tufts is greater than the radial length of the plurality of wipers. More preferably, a portion of said plurality of wipers is laterally flush with said open mouth.

It is further preferred that the plurality of bristle tufts and the plurality of wiper blades are alternately arranged on the brush holder in the circumferential direction.

It is further preferred that a portion of said bristle tufts extend outwardly from said opening.

In the above technical solution, preferably, the floor cleaning device further includes: and the liquid supply system is provided with a solution tank for storing cleaning liquid and a plurality of liquid supply nozzles which are arranged on the cleaning base and are communicated with the solution tank in a fluid mode. Further preferably, the floor cleaning device further comprises: the dirty liquid recovery system comprises a dirty liquid tank, a suction channel between the dirty liquid tank and a suction motor in fluid communication with the dirty liquid tank, wherein the lower opening is in fluid communication with the dirty liquid tank and can suck dirty liquid and debris on a surface to be cleaned under the action of the suction motor. More preferably, the floor cleaning apparatus further comprises: the lower part of the upright machine body is rotatably connected to the cleaning base, and the upper part of the upright machine body is provided with a handle, and the suction motor, the solution tank and the sewage tank are uniformly arranged on the upright machine body.

Compared with the prior art, the floor cleaning device provided by the invention can clean the floor, the wall root close to the floor and the corner of the wall by virtue of the brush roller and the side brush, and further improves the cleaning efficiency of the floor cleaning device.

Drawings

FIG. 1 is a perspective view of a floor cleaning device according to the present invention;

FIG. 2 is a perspective view of the cleaning base of FIG. 1 with the top cover removed;

FIG. 3 isbase:Sub>A schematic cross-sectional view at A-A of the cleaning base shown in FIG. 1;

FIG. 4 is a perspective view of the bottom of the base of the present invention;

FIG. 5 is an exploded view of the cleaning base of FIG. 2;

FIG. 6 is a perspective view of the assembly shown in FIG. 5;

FIG. 7 is a perspective view of the front portion shown in FIG. 6;

FIG. 8 is a schematic view of an embodiment of a side brush according to the present invention;

FIG. 9 is a first schematic view illustrating the effect of the side brush in the side brush cavity when the side brush shown in FIG. 8 is mounted on the base according to the present invention;

FIG. 10 is a second schematic view of the side brush in the side brush cavity when the side brush shown in FIG. 8 is mounted on the base according to the present invention;

FIG. 11 is a third schematic view of the side brush in the side brush cavity when the side brush shown in FIG. 8 is installed on the base according to the present invention;

FIG. 12 is a schematic view of another embodiment of a side brush according to the present disclosure;

FIG. 13 is a first schematic view illustrating the effect of the side brush in the side brush cavity when the side brush shown in FIG. 12 is mounted on the base according to the present invention;

FIG. 14 is a second schematic view of the side brush in the side brush cavity when the side brush shown in FIG. 12 is mounted on the base according to the present invention;

fig. 15 is a third schematic view of the effect of the side brush in the side brush cavity when the side brush shown in fig. 12 is installed on the base provided by the present invention.

Detailed Description

To explain technical contents, structural features, achieved objects and effects of the invention in detail, the technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may be practiced without these specific details or with one or more equivalent arrangements. Moreover, the various exemplary embodiments may be different, but are not necessarily exclusive. For example, the particular shapes, configurations and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.

In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

Further, in this application, spatially relative terms such as "below … …", "below … …", "below … …", "below", "above … …", "above … …", "higher", "side" (e.g., as in "sidewall"), etc., thus describe the relationship of one element to another (other) element as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below … …" may include both an orientation of above and below. Further, the devices may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the present application, the term "enclosing" means that an object (a) is located outside another object (B) and is arranged around the other object (B) or some part of the other object (B), which object (a) may enclose a closed loop or an open loop with openings.

In the present application, unless expressly stated or limited otherwise, the term "coupled" is to be construed broadly, e.g., "coupled" may be a fixed connection, a removable connection, or an integral part; may be directly connected or indirectly connected through an intermediate.

Fig. 1 shows a floor cleaning device 100 according to the present invention, the floor cleaning device 100 being capable of cleaning a floor surface and a wall substantially perpendicular to the floor surface simultaneously. The floor cleaning device 100 comprises a cleaning base 1 adapted to be moved over a floor surface, an upright body 2 having a lower portion rotatably hinged to the cleaning base 1, a liquid supply system for supplying cleaning liquid to the cleaning base 1, and a dirty liquid recovery system for recovering dirty liquid from the surface to be cleaned. The directions herein are based on the viewing angle when the user stands at the rear side of the floor cleaning device 100 and pushes the floor cleaning device 100 to move.

The upright body 2 includes a handle portion 26 fixedly connected to the upright portion 20 along the upright portion 20 and located on an upper side of the upright portion 20. The handle portion 26 has a grip 261 for a user to hold, a plurality of operation switches 262 provided on the grip 261, and a lever 263 for supporting the grip 261. The rod 263 is fixed to the handle 261 and the upright 20 at two ends. The operation switch 262 is not limited to a key, a slide button, a trigger, and the like.

The upright portion 20 includes a main body portion 21 extending in the longitudinal direction and a lower attachment end 27 at the lower end of the main body portion 21, the lower attachment end 27 being rotatably hinged to the cleaning base 1. A human-computer interaction panel 24 is provided at the upper end of the main body 21. The rear portion of the main body 21 is further provided with a rechargeable battery 28, and the rechargeable battery 28 provides power for each energy consuming component of the floor cleaning device 100 and is configured to be electrically connected to an external power source.

The liquid supply system includes a liquid tank 22 for storing and supplying cleaning liquid to the outside, a liquid supply path (not shown) fluidly connecting the liquid tank 22 and a plurality of liquid supply nozzles (see below), and a liquid pump 30 disposed in the liquid supply path and providing flow power to the cleaning liquid. The reservoir 22 is adjacent to the underside of the human interface panel 24 and is removably attached to the body 21 to facilitate the addition of cleaning solution thereto by the user. As shown in fig. 4, the liquid pump 30 is located inside the cleaning base 1. The cleaning liquid is not limited to clear water, disinfectant water added with a disinfectant, and a cleaning agent solution added with a cleaning agent.

The dirty liquid recovery system includes a dirty liquid tank 23 for receiving and storing dirty liquid, a recovery path that enables the dirty liquid tank 23 to be in fluid communication with a lower opening 181 (see below), and a suction motor 25 for providing suction power. The suction motor 25 is disposed inside the main body 21 and on the rear side of the solution tank 22. The dirty liquid tank 23 is located at the front side of the rechargeable battery 28 and at the lower side of the solution tank 22, and the dirty liquid tank 23 is detachably connected to the main body 21 so that a user can pour out dirty liquid inside the tank conveniently.

As shown in fig. 2-3, the cleaning base 1 includes a base body 10, a top cover 11, a cleaning system including a brush roller 12 and side brushes 13, and a sealing member 15 connected to the base body 10. The top cover 11 is detachably connected to the holder body 10.

As shown in fig. 5, the seat body 10 has a front part 101, a rear part 102 located at the rear side of the front part 101, and a first side part 103 and a second side part 104 which are oppositely arranged left and right; in this example, the first side 103 is located at the right portion of the entire housing 10, and the second side 104 is located at the left portion of the entire housing 10. A pair of moving wheels 109 is rotatably connected to the rear portion 102 of the housing 10, and the moving wheels 109 are used for moving the cleaning base 1 back and forth on the floor.

The first side 103 includes a rear portion 1030 and a front portion 1031 that is separable from the rear portion 1030. The front 101, the front portion 1031 of the first side 103, the second side 104, and the top cover 11 collectively define a brushroll chamber 18. The brushroll chamber 18 has a lower opening 181 facing the ground and a forward opening 182 facing in the forward direction (see figure 3), the lower opening 181 being adjacent the forward opening 182.

A first scraping bar 17 is fixedly connected to the bottom of the housing 10, the first scraping bar 17 is located at the rear side of the lower opening 181 and defines the rear edge of the lower opening 181, and the first scraping bar 17 is configured to be inclined downward and forward such that the front end thereof contacts the ground. The front part 101 of the housing 10 is also provided with a second wiper strip 19, which second wiper strip 19 will extend into the brush roll chamber 18 and contact the brush roll 12. The front portion of the housing 10 is provided with a plurality of first liquid supply nozzles 33 for supplying and distributing the cleaning liquid to the brush roller 12 and a single second liquid supply nozzle 35 for supplying and distributing the cleaning liquid to the side brush 13. The housing 10 is also provided with a suction channel 29 therein, the suction channel 29 extending out of the front portion 101 and being in fluid connection with the lower opening 181, the suction channel 29 constituting a part of the dirty liquid recovery path.

With reference to fig. 6, the brush roller 12 is arranged at the brush roller chamber 18 so as to be rotatable about a brush roller axis X1. The lower portion of the brush roll 12 passes out of the lower opening 181 of the brush roll chamber 18 to contact the surface to be cleaned. As shown in FIG. 1, the front of the brushroll 12 is exposed through a front opening 182 of the brushroll chamber 18.

As shown in fig. 4, a driving device 14 for driving the brush roller 12 is disposed on the cleaning base 1, and the driving device 14 is disposed inside the housing 10 and near the second side portion 104. The front of the second side 104 has a drive 1041, the drive 1041 being engageable with the left end of the brushroll 12. The drive means 14 is arranged in driving connection with the drive member 1041 for driving the brush roller 18 via the drive member 1041.

Referring to fig. 5 and 6, the side brush 13 is rotatably disposed at the side brush cavity 16 about a horizontal axis X2. The side brush 13 has a brush holder 131, a flexible cleaning member 132 disposed on the brush holder 131, and a connection end 133 capable of being combined with the recess 1032.

As shown in fig. 7, the front portion 1031 has an inwardly recessed recess 1032 and a side brush chamber 16 defined by the recess 1032, the side brush chamber 16 having an opening 161 opened toward the outside of the first side 103 and a lower opening 162 provided toward the floor. The lower portion of the first side portion 103 has a notch 1033, and the notch 1033 provides fluid communication between the lower opening 162 and the lower opening 181. An end portion 171 of the first wiper strip 17 projects into the side brush chamber 16 while abutting the notch 1033 and the lower opening 162, and rear edges of the notch 1033 and the lower opening 162 are defined by the end portion 171. The side brush chamber 16 also has a front opening 163 facing toward the front side, the front opening 163 being adjacent to the lower opening 162 and upstream of the lower opening 162 in terms of the rotational direction of the side brush 13. The front opening 163 of the side brush chamber 16 is disposed in the front direction and is arranged to penetrate the front opening 182 of the brush roller chamber 18 in the right and left directions.

The seal 15 is disposed at the first side portion 103 and outside the opening 161, and the seal 15 is configured to surround the opening 161 and protrude laterally from an outer contour surface of the first side portion 103. The seal 15 includes a rear end portion 151, a front end portion 152, and an arcuate body 153 extending between the rear end portion 151 and the front end portion 152. The seal 15 has a rear end 151 which is higher than the lower edge of the first side 103 and a front end 152 which is higher than the rear end 151. Wherein the sealing member 15 is made of a flexible material to be attached to the wall.

As shown in fig. 8 of the side brush 13, the cleaning member 132 includes bristle tufts 1321 arranged in a cluster shape and the wiper 1322 arranged in a plate shape, the bristle tufts 1321 having a radial length larger than that of the wiper 1322.

9-11, when the side brush 13 is installed in the side brush chamber 16, the outside edge of the wiper 1322 is substantially flush with the opening 161 to clean the wall in contact therewith; part of the bristle tufts 1321 pass out of the lower opening 162 of the side brush chamber 16 to clean the floor surface in contact with, and part of the bristle tufts 1321 and part of the wiper 1322 pass through the front opening 163 of the side brush chamber 16 to clean the corners of the wall.

Another embodiment of a side brush 13' is shown in fig. 12, in which side brush 13' cleaning elements 132' fixed to a holder 131' are all located as tufts of bristles 1321'.

As shown in fig. 13-15, when the side brush 13 'is installed in the side brush cavity 16, the outer side edge of a part of the bristle tufts 1321' protrudes outward from the opening 161 to clean the wall in contact therewith; the lower portion of some of the bristle tufts 1321' project downwardly from the lower opening 162 to clean the floor surface in contact therewith; some of the bristle tufts 1321' pass through the front opening 163 of the side brush chamber 16 to clean the corners or walls in contact therewith.

The cleaning member of the side brush is not limited to the above-mentioned configuration, and may include a wiping pad, a sponge strip, or the like.

As further shown in fig. 6, the side brushes 13 are rotatably supported on the concave portions 1032 by the connecting ends 133 and are configured to be drivingly connected to the brush roller 12, and the horizontal axis X2 of the side brushes 13 is aligned with the brush roller axis X1 of the brush roller 12. In other embodiments, the side brushes and the brush roller can also be arranged so that they are driven by different drive devices or the horizontal axes of the side brushes are offset from the brush roller axis of the brush roller.

With continued reference to fig. 5, the seal 15, the front portion 1031, the side brushes 13, and the brush roll 12 are configured to form an assembly 200, and the assembly 200 is configured such that the assembly 200 is removable from the housing 10 as a unit after the cover 11 is removed from the housing 10. Wherein the side brush 13 is also configured to be separately detachable from the outside of the cleaning base 1, so that the user can replace or clean the side brush 13 conveniently.

Referring to fig. 4, the liquid supply system further includes a branch valve 31, a plurality of first liquid supply nozzles 33 for distributing the cleaning liquid to the brush roller 12, a main flow passage 32 for achieving fluid communication between the branch valve 31 and the first liquid supply nozzles 33, a second liquid supply nozzle 35 for distributing the cleaning liquid to the side brushes 13, and a branch flow passage 34 for achieving fluid communication between the branch valve 31 and the second liquid supply nozzle 35.

A plurality of first liquid supply nozzles 33 are sequentially arranged on the front portion 101 of the housing 10 extending in the left-right direction and are in fluid communication with the roller chamber 18. As shown in fig. 3, the first liquid supply nozzle 33 is located downstream of the second wiper strip 19 with respect to the rotational direction R of the brush roller 12. A second fluid supply nozzle 35 is disposed on the front portion 101 adjacent to the upper side of the end portion 171 of the first wiper strip 17, the second fluid supply nozzle 35 being in fluid communication with the side brush chamber 16.

The bypass valve 31 is located downstream of the liquid pump 30 with respect to the flow direction of the cleaning liquid and is in fluid communication with the main flow channel 32. The bypass valve 31 is configured to: when the first side 103 contacts the wall, the main channel 32 is communicated with the branch channel 34 to provide the cleaning liquid to the second liquid supply nozzle 35; when the first side 103 is separated from the wall, the primary channel 32 is blocked from fluid communication with the bypass channel 34.

The operation of the floor scrubbing apparatus 100 will now be described. When the floor cleaning device 100 is used for cleaning on a floor surface away from a wall, the liquid pump 30 is started, and the cleaning liquid in the liquid storage tank 22 is distributed to the first liquid supply nozzle 33 under the action of the liquid pump 30. The drive means 14 is activated to simultaneously rotate the brush rolls 12 and the side brushes 13.

The suction motor 25 is activated and creates a negative pressure on the fluid path from the lower opening 181 to the suction motor 25. Under the negative pressure, the dirty liquid at the lower opening 181 and the dirty liquid scraped by the second wiper strip 19 reach the dirty liquid tank 23 through the dirty liquid recovery path and are stored therein.

When the floor cleaning device 100 is close to a wall for cleaning, the liquid pump 30 is activated, and the cleaning liquid in the tank 22 is distributed to the first nozzle 33 by the liquid pump 30. The drive unit 14 is activated to rotate the brush roller 12 and the side brushes 13.

The bypass valve 31 is triggered to open, and the sealing member 15 is attached to the wall surface to close the opening 161 of the side brush chamber 16 and make the side brush chamber 16 semi-closed. Part of the cleaning liquid in the main flow passage 32 is delivered to the second liquid supply nozzle 35 through the branch flow passage 34, the cleaning liquid of the second liquid supply nozzle 35 wets the cleaning member 132 of the side brush 13, and the rotating cleaning member 132 cleans the surface to be cleaned (wall, floor, corner, etc.) contacted by the cleaning liquid through the opening 161, the lower opening 162 and the front opening 163 of the side brush chamber 16. The cleaning fluid from first fluid supply nozzle 33 wets brush roller 12, and brush roller 12 cleans the floor surface with the cleaning fluid.

The suction motor 25 is activated and creates a negative pressure on the fluid path from the lower opening 181 to the suction motor 25. The side brush chamber 16 communicates with the lower opening 181 through the notch 1033 to form a stable negative pressure in the side brush chamber 16. Under the action of the negative pressure, the dirty liquid (including the wall and the floor) near the side brush chamber 16 enters the inside of the side brush chamber 16 and reaches the lower opening 181 through the notch 1033. The dirty liquid at the lower opening 181 and the dirty liquid scraped by the second wiper strip 19 reach and are stored in the dirty liquid tank 23 through the recovery path by the negative pressure.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes or 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 device comprising a cleaning base (1) adapted to be moved over a floor surface to be cleaned, characterized in that said cleaning base (1) comprises:

a base (10) having a front (101), a rear (102), opposing first (103) and second (104) sides;

a brush roll (12) rotatably arranged on the base (10) about a brush roll axis (X1) and located between the first and second side portions;

a side brush chamber (16) located at the first side portion (103), the side brush chamber (16) having an opening (161) opened toward an outer side of the first side portion, a lower opening (162) facing a floor to be cleaned, and a front opening (163) facing a front side; and

a side brush (13) rotatably supported in said side brush chamber (16) about a horizontal axis (X2), said horizontal axis (X2) being collinear with said brushroll axis (X1), said side brush (13) including a brush holder (131) and cleaning members (132) disposed on said brush holder (131); the outer side part of the cleaning piece (132) is exposed from the opening (161); a lower portion of said cleaning member (132) projecting downwardly from said lower opening (162) and contacting the floor to be cleaned; the front portion of the cleaning member (132) is exposed from the front opening (163).

2. A floor cleaning apparatus according to claim 1, characterized in that the cleaning base (1) further comprises: a sealing member (15) located on the first side portion (103) and located outside the side brush chamber (16), the cleaning member (132) being defined inside the sealing member (15).

3. A floor cleaning device as claimed in claim 1, characterized in that the cleaning foot (1) comprises: a brush roller chamber (18), the brush roller chamber (18) having a lower opening (181) at a lower portion and a front opening (182) at a front portion, a lower portion of the brush roller (12) protruding from the lower opening (181) to contact the ground, a front portion of the brush roller (12) being exposed from the front opening (182).

4. A floor cleaning device as claimed in claim 1, characterized in that the cleaning member (132) comprises a number of bristle tufts (1321, 1321').

5. A floor cleaning apparatus according to claim 4, characterized in that the cleaning member (132) comprises a plurality of blades (1322), and the plurality of bristle tufts (1321, 1321') have a radial length which is greater than the radial length of the plurality of blades (1322).

6. A floor cleaning apparatus according to claim 5, characterized in that part of the plurality of blades (1322) are laterally flush with the opening (161).

7. A floor cleaning device according to claim 5, characterized in that the bristle tufts (1321, 1321') and the blades (1322) are distributed alternately in the circumferential direction on the brush holder (131).

8. A floor cleaning device according to claim 4, characterized in that parts of the bristle tufts (1321, 1321') protrude outwards from the opening (161).

9. A floor cleaning device as claimed in claim 1, further comprising: a liquid supply system having a solution tank (22) for storing a cleaning liquid and a plurality of liquid supply nozzles (33,35) disposed on said cleaning base (1) and in fluid communication with said solution tank (22).

10. A floor cleaning device as claimed in claim 9, further comprising: the dirty liquid recovery system comprises a dirty liquid tank (23), a suction channel (29) between the dirty liquid tank (23) and a suction motor (25) which is communicated with the dirty liquid tank (23), wherein the lower opening (181) is communicated with the dirty liquid tank (24) in a fluid mode and can suck dirty liquid and debris on a surface to be cleaned under the action of the suction motor (25).

11. A floor cleaning device as claimed in claim 10, further comprising: the lower part of the upright machine body (2) is rotatably connected to the cleaning base (1), the upper part of the upright machine body (2) is provided with a handle (261), and the suction motor (25), the solution tank (22) and the dirty liquid tank (23) are all arranged on the upright machine body (2).