Floor cleaning device
By designing a rotating brush roller and side brush on the floor cleaning device, the problem of insufficient cleaning of wall corners is solved, achieving efficient cleaning of the floor, wall base and wall corners, and improving cleaning efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-06-30
- Publication Date
- 2026-03-24
AI Technical Summary
Existing floor cleaning devices are insufficient for cleaning corners on walls, requiring the use of other tools, which reduces cleaning efficiency and is inconvenient to operate.
A floor cleaning device was designed, equipped with a rotatable brush roller and a side brush. The brush roller and the side brush are connected by a transmission, which can clean the floor, the base of the wall and the corner of the wall at the same time. The side brush cavity is sealed by a sealing element to achieve cleaning of the wall surface and corners.
It improves cleaning efficiency for floors, wall bases, and wall corners, enhances the overall cleaning capabilities of the cleaning device, and reduces reliance on other tools.
Smart Images

Figure CN115530689B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cleaning equipment technology, and in particular to a floor cleaning device. Background Technology
[0002] Surface cleaning devices, especially vertical surface cleaning devices, use a cleaning base with brush rollers to clean and vacuum the surface to be cleaned. When such machines are in operation, cleaning fluid is applied to the surface by rotating brush rollers. As the rollers rotate, they simultaneously work with the suction force of a suction device to pick up the dirt and debris from the surface and store it in a tank on the vertical machine body.
[0003] The aforementioned types of machines have obvious advantages when cleaning normal floors; however, due to the structure of the cleaning base, their cleaning ability is insufficient when encountering corners or walls. Users need to use other tools and spend time and effort to clean these areas, which not only reduces the cleaning efficiency of the cleaning device, but also makes it quite troublesome for the operator to change cleaning tools for additional cleaning. Summary of the Invention
[0004] To address the aforementioned problem of insufficient cleaning ability, the present invention provides an improved floor cleaning device.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a floor cleaning device, comprising a cleaning base suitable for moving on the floor to be cleaned, wherein the cleaning base includes:
[0006] The seat has a front part, a rear part, and opposing first and second side parts;
[0007] A brush roller is rotatably arranged on the base and located between the first side and the second side;
[0008] A side brush cavity, located at the first side portion, having an opening opening towards the outer side of the first side portion, a lower opening facing the surface to be cleaned, and a front opening facing forward; and
[0009] A side brush is rotatably supported within a side brush cavity about a horizontal axis that is collinear with the axis of the brush roller. The side brush includes a brush seat and a cleaning element arranged on the brush seat. The outer portion of the cleaning element protrudes from the opening. The lower portion of the cleaning element extends downward from the lower opening and contacts the surface to be cleaned. The front portion of the cleaning element protrudes from the front opening.
[0010] In the above technical solution, preferably, the cleaning base further includes a sealing member located on the first side and outside the side brush cavity, and the cleaning member is defined inside the sealing member.
[0011] In the above technical solution, preferably, the cleaning base includes: a brush roller cavity, the brush roller cavity having a lower opening at the bottom and a front opening at the front, the lower part of the brush roller extending from the lower opening to contact the ground, and the front part of the brush roller protruding from the front opening.
[0012] In the above technical solution, preferably, the cleaning component includes a plurality of bristle tufts. More preferably, the cleaning component includes a plurality of scraper blades, wherein the radial length of the plurality of bristle tufts is greater than the radial length of the plurality of scraper blades. Even more preferably, some of the plurality of scraper blades are flush with the side of the opening.
[0013] Alternatively, the plurality of bristle clusters and the plurality of scrapers are alternately distributed circumferentially on the brush holder.
[0014] Alternatively, in a more preferred embodiment, some of the bristle tufts extend outward from the opening.
[0015] In the above technical solution, preferably, the floor cleaning device further includes: a liquid supply system, which has a solution tank for storing cleaning liquid and a plurality of liquid supply nozzles disposed on the cleaning base and in fluid communication with the solution tank. More preferably, the floor cleaning device further includes: a waste liquid recovery system, including a waste liquid tank, a suction channel between the waste liquid tank and the waste liquid tank, and a suction motor in fluid communication with the waste liquid tank, wherein the lower opening is in fluid communication with the waste liquid tank and can suck up waste liquid and debris from the surface to be cleaned under the action of the suction motor. Even more preferably, the floor cleaning device further includes: an upright body, the lower part of which is rotatably connected to the cleaning base, and the upper part of the upright body has a handle; the suction motor, solution tank, and waste liquid tank are all arranged on the upright body.
[0016] Compared with the prior art, the floor cleaning device provided by the present invention, with the help of brush rollers and side brushes, can clean the floor, the base of the wall near the floor and the corner of the wall, which further improves the cleaning efficiency of the floor cleaning device. Attached Figure Description
[0017] Figure 1 This is a perspective view of the floor cleaning device provided by the present invention;
[0018] Figure 2 for Figure 1 A three-dimensional schematic diagram of the cleaning base shown, in which the top cover has been removed;
[0019] Figure 3 for Figure 1 A cross-sectional view of the cleaning base at point AA shown;
[0020] Figure 4 A perspective view of the bottom of the base provided by the present invention;
[0021] Figure 5 for Figure 2 An exploded view of the cleaning base is shown below;
[0022] Figure 6 for Figure 5 A three-dimensional schematic diagram of the components shown;
[0023] Figure 7 for Figure 6 A three-dimensional schematic diagram of the front section shown;
[0024] Figure 8 This is a schematic diagram of an embodiment of a side brush provided by the present invention;
[0025] Figure 9 The base provided by the present invention is equipped with such Figure 8 The diagram illustrates the effect of the side brush in the side brush cavity during side brushing. Figure 1 ;
[0026] Figure 10 The base provided by the present invention is equipped with such Figure 8 The diagram illustrates the effect of the side brush in the side brush cavity during side brushing. Figure 2 ;
[0027] Figure 11 The base provided by the present invention is equipped with such Figure 8 The diagram illustrates the effect of the side brush in the side brush cavity during side brushing. Figure 3 ;
[0028] Figure 12 This is a schematic diagram of another side brush embodiment provided by the present invention;
[0029] Figure 13 The base provided by the present invention is equipped with such Figure 12 The diagram illustrates the effect of the side brush in the side brush cavity during side brushing. Figure 1 ;
[0030] Figure 14 The base provided by the present invention is equipped with such Figure 12 The diagram illustrates the effect of the side brush in the side brush cavity during side brushing. Figure 2 ;
[0031] Figure 15 The base provided by the present invention is equipped with such Figure 12The diagram illustrates the effect of the side brush in the side brush cavity during side brushing. Figure 3 . Detailed Implementation
[0032] To illustrate the technical content, structural features, achieved objectives, and effects of the invention in detail, the technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. In the following description, for illustrative purposes, numerous specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in one or more equivalent arrangements. Furthermore, the various exemplary embodiments may differ, but are not necessarily exclusive. For example, the specific shape, construction, and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.
[0033] In the following description, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0034] Furthermore, in this application, spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side” (e.g., as in a “sidewall”) are used to describe the relationship between one element and another (other) element as shown in the accompanying drawings. Spatial relative terms are intended to include different orientations of the device in use, operation, and / or manufacture other than those depicted in the drawings. For example, if the device in the drawings is flipped, an element described as “below” or “under” another element or feature would then be positioned “above” said other element or feature. Thus, the exemplary term “below” can include both above and below orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.
[0035] In this application, the term "encircle" means that an object (A) is located outside another object (B) and arranged around the other object (B) or a part of the other object (B), wherein the object (A) may be arranged in a closed loop or in an open loop with an opening.
[0036] In this application, unless otherwise expressly specified and limited, the term "connection" shall be interpreted broadly. For example, "connection" may be a fixed connection, a detachable connection, or an integral part; it may be a direct connection or an indirect connection through an intermediate medium.
[0037] Figure 1 The present invention illustrates a floor cleaning device 100 capable of simultaneously cleaning a floor and a wall substantially perpendicular to the floor. The floor cleaning device 100 includes a cleaning base 1 adapted to move on the floor, an upright body 2 rotatably hinged to the cleaning base 1 at its lower part, a liquid supply system for supplying cleaning fluid to the cleaning base 1, and a waste fluid recovery system for recovering waste fluid from the surface to be cleaned. The orientations used herein are based on the viewpoint of a user standing behind the floor cleaning device 100 and pushing it to move.
[0038] The upright body 2 includes an upright section 20 and a handle section 26 fixedly connected to the upright section 20 and located on the upper side of the upright section 20. The handle section 26 has a handle 261 for the user to hold, a plurality of operating switches 262 provided on the handle 261, and a rod 263 for supporting the handle 261. The two ends of the rod 263 are fixedly connected to the handle 261 and the upright section 20, respectively. The operating switches 262 are not limited to the form of buttons, sliders, triggers, etc.
[0039] The upright part 20 includes a longitudinally extending main body 21 and a lower connecting end 27 located at the lower end of the main body 21, which is rotatably hinged to the cleaning base 1. A human-machine interface panel 24 is provided at the upper end of the main body 21. A rechargeable battery 28 is also disposed at the rear of the main body 21. The rechargeable battery 28 provides power to the various energy-consuming components of the floor cleaning device 100 and is configured to be electrically connected to an external power source.
[0040] The liquid supply system includes a reservoir 22 for storing and supplying cleaning fluid, a supply path (not shown in the figure) that enables fluid communication between the reservoir 22 and multiple supply nozzles (see below), and a liquid pump 30 disposed in the supply path and providing flow power for the cleaning fluid. The reservoir 22 is adjacent to the lower side of the human-machine interface panel 24 and detachably connected to the main body 21 for easy addition of cleaning fluid by the user. Figure 4 As shown, the liquid pump 30 is located inside the cleaning base 1. The cleaning liquid is not limited to water, disinfectant solution with added disinfectant, or cleaning solution with added cleaning agent.
[0041] The wastewater recovery system includes a wastewater tank 23 for receiving and storing wastewater, a recovery path that enables fluid communication between the wastewater tank 23 and a lower opening 181 (see below), and a suction motor 25 for providing suction power. The suction motor 25 is located inside the main body 21 and is configured at the rear of the solution tank 22. The wastewater tank 23 is located in front of the rechargeable battery 28 and below the solution tank 22, and is detachably connected to the main body 21 for easy emptying of the wastewater by the user.
[0042] like Figure 2-3 As shown, the cleaning base 1 includes a base 10, a top cover 11, a cleaning system including a brush roller 12 and a side brush 13, and a seal 15 connected to the base 10. The top cover 11 is detachably connected to the base 10.
[0043] like Figure 5 As shown, the seat 10 has a front portion 101, a rear portion 102 located behind the front portion 101, and a first side portion 103 and a second side portion 104 arranged opposite to each other on the left and right sides. In this example, the first side portion 103 is located on the right side of the entire seat 10, and the second side portion 104 is located on the left side of the entire seat 10. A pair of casters 109 are rotatably connected to the rear portion 102 of the seat 10, and the casters 109 are used to move the cleaning base 1 back and forth on the ground.
[0044] The first side portion 103 includes a rear portion 1030 and a front portion 1031 separable from the rear portion 1030. The front portion 101, the front portion 1031 of the first side portion 103, the second side portion 104, and the top cover 11 together define a brush roller cavity 18. The brush roller cavity 18 has a lower opening 181 facing the ground and a forward opening 182 (see...). Figure 3 The lower opening 181 is adjacent to the front opening 182.
[0045] A first scraper 17 is fixedly connected to the bottom of the base 10. The first scraper 17 is located behind the lower opening 181 and defines the rear edge of the lower opening 181. The first scraper 17 is configured to tilt forward and downward so that its front end contacts the ground. A second scraper 19 is also provided on the front part 101 of the base 10. The second scraper 19 extends into the brush roller cavity 18 and contacts the brush roller 12. The front part of the base 10 is provided with a plurality of first supply nozzles 33 for supplying and distributing cleaning fluid to the brush roller 12 and a single second supply nozzle 35 for supplying and distributing cleaning fluid to the side brush 13. A suction channel 29 is also provided inside the base 10. The suction channel 29 extends out of the front part 101 and is fluidly connected to the lower opening 181. The suction channel 29 forms part of the wastewater recovery path.
[0046] Combination Figure 6The brush roller 12 is rotatably disposed in the brush roller cavity 18 about the brush roller axis X1. The lower part of the brush roller 12 extends through the lower opening 181 of the brush roller cavity 18 to contact the surface to be cleaned. Figure 1 As shown, the front part of the brush roller 12 protrudes from the front opening 182 of the brush roller cavity 18.
[0047] like Figure 4 As shown, a drive unit 14 for driving the brush roller 12 is arranged on the cleaning base 1. The drive unit 14 is located inside the base 10 and near the second side portion 104. The front portion of the second side portion 104 has a drive member 1041, which can engage with the left end of the brush roller 12. The drive unit 14 is configured to be drively connected to the drive member 1041 to drive the brush roller 12 via the drive member 1041.
[0048] Please combine Figure 5 , Figure 6 The side brush 13 is rotatably arranged in the side brush cavity 16 about a horizontal axis X2. The side brush 13 has a brush base 131, a flexible cleaning element 132 arranged on the brush base 131, and a connecting end 133 that can be engaged with the recess 1032.
[0049] like Figure 7 As shown, the front portion 1031 has an inwardly recessed portion 1032 and a side brush cavity 16 defined by the recess 1032. The side brush cavity 16 has an opening 161 that opens outward toward the first side portion 103 and a lower opening 162 that faces the ground. The lower part of the first side portion 103 has a notch 1033 that allows fluid communication between the lower opening 162 and the lower opening 181. One end 171 of the first scraper 17 extends into the side brush cavity 16 and is adjacent to both the notch 1033 and the lower opening 162. The rear edges of both the notch 1033 and the lower opening 162 are defined by the end 171. The side brush cavity 16 also has a front opening 163 facing forward. With respect to the rotation direction of the side brush 13, the front opening 163 is adjacent to and upstream of the lower opening 162. The front opening 163 of the side brush cavity 16 is positioned facing forward and configured to communicate with the front opening 182 of the brush roller cavity 18 from left to right.
[0050] A seal 15 is disposed at the first side portion 103 and located outside the opening 161. The seal 15 is configured to surround the opening 161 and laterally protrude from the 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 rear end portion 151 of the seal 15 is higher than the lower edge of the first side portion 103, and the front end portion 152 is higher than the rear end portion 151. The seal 15 is made of a flexible material to conform to the wall.
[0051] like Figure 8 The side brush 13 shown includes a cleaning component 132 comprising a cluster of bristles 1321 and a blade 1322 distributed in a sheet-like manner. The radial length of the bristle cluster 1321 is greater than the radial length of the blade 1322.
[0052] like Figure 9-11 As shown, when the side brush 13 is installed in the side brush cavity 16, the outer edge of the scraper 1322 is approximately flush with the opening 161 to clean the wall it contacts; some bristle tufts 1321 protrude through the lower opening 162 of the side brush cavity 16 to clean the ground it contacts, and some bristle tufts 1321 and some scraper 1322 pass through the front opening 163 of the side brush cavity 16 to clean the corners of the wall.
[0053] like Figure 12 Another embodiment shown is a side brush 13', in which the cleaning element 132' fixed on the brush holder 131' is entirely located in the bristle tuft 1321'.
[0054] like Figure 13-15 As shown, when the side brush 13' is installed in the side brush cavity 16, the outer edge of a portion of the bristle tuft 1321' protrudes outward from the opening 161 to clean the wall it contacts; the lower part of a portion of the bristle tuft 1321' extends downward from the lower opening 162 to clean the ground it contacts; and a portion of the bristle tuft 1321' passes through the front opening 163 of the side brush cavity 16 to clean the corner or wall it contacts.
[0055] The cleaning components of the side brush are not limited to the structural methods listed above, and may also include wiping pads or sponge strips.
[0056] Continue as Figure 6 As shown, the side brush 13 is rotatably supported on the recess 1032 via the connecting end 133 and is configured to be driveably connected to the brush roller 12. The horizontal axis X2 of the side brush 13 and the brush roller axis X1 of the brush roller 12 are on the same straight line. In other embodiments, the side brush and the brush roller may also be configured to be driven by different driving devices, or the horizontal axis of the side brush may be offset from the brush roller axis.
[0057] See also Figure 5 The seal 15, the front portion 1031, the side brush 13, and the brush roller 12 are configured to form an assembly 200, which is configured to be detachable as a whole from the base 10 after the top cover 11 is removed from the base 10. The side brush 13 is also configured to be detachable separately from the outside of the cleaning base 1, facilitating user replacement or cleaning of the side brush 13.
[0058] See Figure 4The liquid supply system also includes a branch valve 31, a plurality of first liquid supply nozzles 33 for distributing cleaning liquid to the brush roller 12, a main channel 32 for fluid communication between the branch valve 31 and the first liquid supply nozzles 33, a second liquid supply nozzle 35 for distributing cleaning liquid to the side brush 13, and a branch flow channel 34 for fluid communication between the branch valve 31 and the second liquid supply nozzle 35.
[0059] Multiple first liquid supply nozzles 33 are arranged sequentially along the left-right direction on the front part 101 of the base 10 and are in fluid communication with the roller cavity 18. For example... Figure 3 As shown, with respect to the rotation direction R of the brush roller 12, the first liquid supply nozzle 33 is located downstream of the second scraper 19. The second liquid supply nozzle 35 is arranged on the front portion 101 and adjacent to the upper side of the end 171 of the first scraper 17, and the second liquid supply nozzle 35 is in fluid communication with the side brush cavity 16.
[0060] Regarding the flow direction of the cleaning fluid, the branch valve 31 is located downstream of the liquid pump 30 and is in fluid communication with the main flow channel 32. The branch valve 31 is configured to: connect the main flow channel 32 and the branch flow channel 34 to supply cleaning fluid to the second supply nozzle 35 when the first side 103 is in contact with the wall; and block the fluid communication between the main flow channel 32 and the branch flow channel 34 when the first side 103 is separated from the wall.
[0061] The working principle of the floor cleaning device 100 is now explained. When the floor cleaning device 100 is performing cleaning operations on the floor away from the wall, the liquid pump 30 is started. Under the action of the liquid pump 30, the cleaning liquid in the storage tank 22 is distributed to the first liquid supply nozzle 33. The drive device 14 is started, which simultaneously drives the brush roller 12 and the side brush 13 to rotate.
[0062] The suction motor 25 is started and a negative pressure is formed in the fluid path from the lower opening 181 to the suction motor 25. Under the action of this negative pressure, the sewage at the lower opening 181 and the sewage scraped off by the second scraper 19 reach and are stored in the sewage tank 23 through the sewage recovery path.
[0063] When the floor cleaning device 100 is cleaning near the wall, the liquid pump 30 starts, and the cleaning fluid in the storage tank 22 is distributed to the first supply nozzle 33 under the action of the liquid pump 30. The drive device 14 starts and drives the brush roller 12 and the side brush 13 to rotate.
[0064] When the branch valve 31 is triggered to open, the seal 15 adheres to the wall surface to close the opening 161 of the side brush cavity 16, making the side brush cavity 16 semi-closed. Part of the cleaning fluid in the main channel 32 is transported to the second supply nozzle 35 via the branch channel 34. The cleaning fluid from the second supply nozzle 35 wets the cleaning element 132 of the side brush 13. The rotating cleaning element 132 cleans the surfaces (walls, floors, corners, etc.) it comes into contact with through the opening 161, lower opening 162, and front opening 163 of the side brush cavity 16. The cleaning fluid from the first supply nozzle 33 wets the brush roller 12, which then uses the cleaning fluid to clean the floor.
[0065] The suction motor 25 is activated, creating a negative pressure in the fluid path from the lower opening 181 to the suction motor 25. The side brush chamber 16 is connected to the lower opening 181 through the notch 1033 to create a stable negative pressure within the side brush chamber 16. Under this negative pressure, the contaminants (including those from the walls and floor) near the side brush chamber 16 enter the interior of the side brush chamber 16 and reach the lower opening 181 through the notch 1033. The contaminants at the lower opening 181, as well as the contaminants scraped off by the second scraper 19, are collected through a recovery path and stored in the contaminant tank 23 under the influence of the negative pressure.
[0066] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be covered within the scope of protection of the present invention.
Claims
1. A floor cleaning device comprising a cleaning base (1) adapted to move on a floor to be cleaned and a wastewater recovery system, the wastewater recovery system comprising a wastewater tank (23) and a suction motor (25) in fluid communication with the wastewater tank (23), characterized in that, The cleaning base (1) includes: The seat (10) has a front part (101), a rear part (102), an opposing first side part (103) and a second side part (104), and the lower part of the first side part (103) has a notch (1033). The brush roller cavity (18) has a lower opening (181) at the bottom, and the lower part of the brush roller (12) extends out from the lower opening (181) to contact the ground; the lower opening (181) is in fluid communication with the waste tank (23) and can suck up the waste and debris on the surface to be cleaned under the action of the suction motor (25); The brush roller (12) is rotatably arranged on the seat (10) about the brush roller axis (X1) and located between the first side and the second side; A side brush cavity (16), located at the first side portion (103), has an opening (161) facing outwards towards the first side portion, a lower opening (162) facing the surface to be cleaned, and a front opening (163) facing forward. The side brush cavity (16) is in fluid communication with the brush roller cavity (18) through the notch (1033), thereby creating a negative pressure zone within the side brush cavity (16) when the suction motor (25) is operating. A side brush (13) is rotatably supported in the side brush cavity (16) about a horizontal axis (X2), the horizontal axis (X2) being collinear with the axis (X1) of the brush roller. The side brush (13) includes a brush seat (131) and a cleaning element (132) arranged on the brush seat (131). The outer portion of the cleaning element (132) protrudes from the opening (161). The lower portion of the cleaning element (132) extends downward from the lower opening (162) and contacts the ground to be cleaned. The front portion of the cleaning element (132) protrudes from the front opening (163).
2. The floor cleaning device according to claim 1, characterized in that, The cleaning base (1) further includes a seal (15) located on the first side (103) and outside the side brush cavity (16), and the cleaning member (132) is defined inside the seal (15).
3. The floor cleaning device according to claim 1, characterized in that, The brush roller cavity (18) has a front opening (182) at the front, through which the front portion of the brush roller (12) is exposed.
4. The floor cleaning device according to claim 1, characterized in that, The cleaning component (132) includes a plurality of bristle tufts (1321, 1321').
5. The floor cleaning device according to claim 4, characterized in that, The cleaning component (132) includes a plurality of scraper blades (1322), wherein the radial length of the plurality of bristle clusters (1321, 1321') is greater than the radial length of the plurality of scraper blades (1322).
6. The floor cleaning device according to claim 5, characterized in that, Some of the scrapers (1322) are laterally flush with the opening (161).
7. The floor cleaning device according to claim 5, characterized in that, The aforementioned bristle clusters (1321, 1321') and scraper blades (1322) are alternately distributed circumferentially on the brush holder (131).
8. The floor cleaning device according to claim 4, characterized in that, Some of the bristle tufts (1321, 1321') extend outward from the opening (161).
9. The floor cleaning device according to claim 1, characterized in that, The ground cleaning device further includes a liquid supply system having a solution tank (22) for storing cleaning liquid and a plurality of liquid supply nozzles (33, 35) disposed on the cleaning base (1) and in fluid communication with the solution tank (22).
10. The floor cleaning device according to claim 9, characterized in that, The floor cleaning device further includes: an upright body (2), the lower part of which is rotatably connected to the cleaning base (1), the upper part of the upright body (2) has a handle (261), and the suction motor (25), solution tank (22), and sewage tank (23) are all arranged on the upright body (2).
Citation Information
Patent Citations
Handheld cleaning and maintaining device
CN107569191A
Edge cleaner for vacuum cleaner
US20020092125A1