Surface cleaner

Abstract

A surface cleaner includes a cleaning base having a body with opposite first and second side portions and a cleaning system including a brushroll and a side brush. The brushroll is disposed between the first and second side portions and includes a tubular core and bristles overlying the core. The brushroll has a first end portion for engaging the first side portion and a second end portion distal from the first end portion. The side brush includes a brush holder and second bristles disposed on the brush holder. At least some of the second bristles project laterally beyond an outer profile of the first side portion. The first side portion includes a front portion between the brushroll and the side brush. The first end portion of the brushroll and the brush holder are both supported on the front portion. A lower portion of the front portion has a gap through which some of the second bristles interface with some of the first bristles at the first end portion of the brushroll to eliminate a cleaning blind spot on a surface to be cleaned below the lower portion of the front portion.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and in particular to a surface cleaning machine. Background Technology

[0002] With the improvement of living standards, surface cleaning machines are increasingly becoming a common household cleaning appliance. Existing surface cleaning machines mainly consist of brush rollers, a liquid supply system, and a waste liquid recovery system. During cleaning operations, the liquid supply system provides cleaning fluid to the brush rollers, which then use the cleaning fluid to clean the surface. The waste liquid recovery system collects the waste liquid from the surface. However, in actual use, it has been found that this type of surface cleaning machine often has blind spots, resulting in reduced cleaning efficiency and a poor user experience. Summary of the Invention

[0003] To address the aforementioned problem of blind spots in cleaning, this invention provides an improved surface cleaning machine.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a surface cleaning machine, comprising a cleaning base adapted to move on a surface to be cleaned, the cleaning base comprising: a seat having opposing first and second sides; and a cleaning system comprising a brush roller and a side brush, the brush roller being rotatably arranged between the first and second sides, the side brush being rotatably supported on the outside of the first side about a horizontal axis, the brush roller comprising a tubular core and first bristles covering the outer peripheral wall of the core, the brush roller having a first end for engaging with the first side and a second end away from the first end, the side brush comprising a brush seat and second bristles arranged on the brush seat; wherein, the first side includes a front portion located between the brush roller and the side brush, the first end of the brush roller and the brush seat are both supported on the front portion, the lower portion of the front portion having a notch; a portion of the second bristles passes through the notch and intersects with a portion of the first bristles located at the first end of the brush roller to eliminate cleaning blind spots on the surface to be cleaned located below the front portion.

[0005] In the above technical solution, preferably, the brush roller and the side brush are driven to rotate by the same driving device.

[0006] In the above technical solution, preferably, the brush roller axis and the horizontal axis are located on the same straight line.

[0007] In the above technical solution, preferably, some of the second bristles are inclined inward and configured to pass through the notch when rotated to the notch. More preferably, the length of the second bristles is greater than the length of the first bristles. More preferably, the hardness of the second bristles is greater than the hardness of the first bristles. More preferably, the second bristles are distributed in clusters on the brush holder.

[0008] In the above technical solution, preferably, some of the second bristles are inclined outward and configured to bulge laterally outward from the outer contour of the first side of the base housing.

[0009] In the above technical solution, preferably, the side brush further includes a scraper blade arranged on the brush holder.

[0010] In the above technical solution, preferably, the front portion includes a side brush cavity recessed inwards, the side brush cavity having an opening facing outwards, and the side brush is mounted in the side brush cavity. More preferably, the cleaning base further includes a flexible seal disposed on the front portion and located outside the opening.

[0011] In the above technical solution, preferably, the brush roller, the side brush, and the front portion are configured to be separable from the cleaning base as a single component.

[0012] In the above-described technical solution, preferably, the side brush is configured to be detachable separately from the outside of the cleaning base.

[0013] In the above technical solution, preferably, the surface cleaning machine 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.

[0014] In the preferred embodiment described above, and further preferably, the surface cleaning machine further includes: a wastewater recovery system, comprising a wastewater tank, a lower opening, a wastewater recovery path located between the lower opening and the wastewater tank, and a suction motor in fluid communication with the wastewater tank. The lower opening is located at the bottom of the cleaning base, and the lower part of the brush roller extends through the lower opening to contact the surface to be cleaned. The lower opening is configured to suck up wastewater and debris from the surface to be cleaned under the action of the suction motor. Further preferably, the surface cleaning machine further includes: an upright body, the lower part of which is rotatably connected to the cleaning base. The upper part of the upright body has a handle, and the suction motor, solution tank, and wastewater tank are all arranged on the upright body.

[0015] In the preferred embodiment described above, and even more preferably, the plurality of liquid supply nozzles are configured to be partially dedicated to supplying liquid to the brush roller and partially dedicated to supplying liquid to the side brush.

[0016] Compared with existing technologies, the surface cleaning machine provided by this invention can reduce cleaning blind spots and further improve the cleaning efficiency of the surface cleaning machine. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the surface cleaning machine 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 schematic diagram of the cleaning base in the AA direction;

[0020] Figure 4 This is a schematic diagram of the bottom interior of the base provided by the present invention;

[0021] Figure 5 An exploded view of the cleaning base provided by the present invention;

[0022] Figure 6 This is a schematic diagram showing the disassembled components provided by the present invention;

[0023] Figure 7 A perspective view of the front portion provided by the present invention;

[0024] Figure 8 for Figure 2 The bottom view of the cleaning base shown;

[0025] Figure 9 for Figure 8 A magnified view of section B;

[0026] Figure 10 This is an example diagram of another side brush in this application;

[0027] Figure 11 For installation Figure 10 A bottom view of the cleaning base with the side brush in the middle;

[0028] Figure 12 For the appendix Figure 11 A magnified view of a section at point C. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Figure 1 The present invention illustrates a surface cleaning machine 100 capable of simultaneously cleaning a floor and a wall substantially perpendicular to the floor. The surface cleaning machine 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 liquid recovery system for recovering waste fluid from the surface to be cleaned. The orientations used herein are based on a view from the rear of the surface cleaning machine 100 with the user's face facing forward.

[0035] 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, an operation switch 262 provided on the handle 261, and a rod 263 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 operation switch 262 is not limited to the form of a button, slide button, trigger, etc.

[0036] The upright section 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 surface cleaning machine 100 and is configured to be electrically connected to an external power source.

[0037] The liquid supply system includes a solution tank 22 for storing and supplying cleaning fluid, a liquid supply path (not shown in the figure) that enables fluid communication between the solution tank 22 and multiple supply nozzles (see below), and a liquid pump 30 disposed in the liquid supply path and providing flow power for the cleaning fluid. The solution tank 22 is 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.

[0038] 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 negative pressure. 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.

[0039] like Figure 2-3As 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.

[0040] like Figure 5 As shown, the base 10 has a front part 101, a rear part 102, and a first side part 103 and a second side part 104 arranged opposite to each other on the left and right. A pair of movable wheels 109 are also rotatably connected to the rear part 102 of the base 10, and the movable wheels 109 are used to move the cleaning base 1 back and forth on the ground.

[0041] The top cover 11 is detachably attached to the base 10. The front portion 101, the first side portion 103, the second side portion 104, and the top cover 11 together define a roller cavity 18, which has a lower opening 181 facing the ground. A first scraper 17 is fixedly connected to the bottom of the base 10, the first scraper 17 defining the rear edge of the lower opening 181, and the first scraper 17 is configured to be inclined forward and downward so that its front end contacts the ground.

[0042] A brush roller 12 is rotatably disposed in a roller cavity 18 and located between a first side portion 103 and a second side portion 104 about a brush roller axis X1. The brush roller 12 has a tubular core 121 and first bristles 122 covering the outer peripheral wall of the core 121. The core 121 has a first end portion 123 capable of engaging with the first side portion 103 and a second end portion 124 capable of engaging with the second side portion 104, the first end portion 123 and the second end portion 124 being spaced apart from each other. The lower portion of the brush roller 12 extends through a lower opening 181 so that the first bristles 122 contact the surface to be cleaned. The brush roller 12 is rotatably connected to the inside of the first side portion 103 via the first end portion 123.

[0043] like Figure 4 As shown, the front portion of the second side 104 has an inwardly extending drive member 1041, which engages with the second end 124 of the brush roller 12. The cleaning base 1 is provided with a drive device 14 for driving the brush roller 12, located inside the base 10 and close to the second side 104. The drive device 14 is configured to be driveably connected to the drive member 1041 to drive the brush roller 18 via the drive member 1041.

[0044] A second scraper 19 is also arranged on the cleaning base 1, located above the first scraper 17. The second scraper 19 extends into the roller cavity 18 and contacts the surface of the brush roller 12. The second scraper 19 is used to scrape off the dirt carried on the surface of the brush roller 12. The bottom of the base 10 extends forward to below the second scraper 19 to receive the dirt scraped off by the second scraper 19. The portion of the roller cavity 18 between the second scraper 19 and the lower opening 181 forms part of the suction channel 29 (see below).

[0045] Please combine Figures 5 to 7 The first side portion 103 includes a rear portion (not shown in the figure) and a front portion 1031 that can be separated from the rear portion.

[0046] The front portion 1031 has an inwardly recessed portion 1032. The recess 1032 defines a side brush cavity 16, which has an opening 161 facing outward from the first side portion 103, a lower opening 162 facing the ground, and a front opening 163 facing forward. The lower part of the front portion 1031 has a notch 1033, which 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 simultaneously adjacent to the upper side of the notch 1033 and the lower opening 162.

[0047] A side brush 13 is disposed in the side brush cavity 16 and configured to rotate about a horizontal axis X2. The side brush 13 includes a brush base 131, second bristles 132 disposed on the brush base 131, a flexible scraper 134 disposed on the brush base 132, and a connecting end 133 integrally formed with the brush base 131. The length and hardness of the second bristles 132 are greater than the corresponding length and hardness of the first bristles 122. The side brush 13 is supported on the recess 1032 through the connecting end 133 and is configured to be drively connected to the brush roller 12 so that the drive device 14 can drive the side brush 13 and the brush roller 12 simultaneously. The brush roller axis X1 of the brush roller 12 and the horizontal axis X2 of the side brush 13 are arranged on the same straight line.

[0048] See Figure 8 , Figure 9 The second bristles 132 are inclined inwards, with the lower part of the second bristles 132 extending through the lower opening 162 of the side brush cavity 16 to contact the ground. A portion of the second bristles 132 protrudes from the front opening 163. The second bristles 132 are bristle tufts. The flexible scraper 134 protrudes laterally from the outer contour of the front portion 1031 and is laterally flush with the opening 161 to contact the wall. The second bristles 132 are configured such that a portion of the bristles at the notch 1033 passes through the notch 1033 and contacts the first bristles 122 at the first end 123, eliminating blind spots between the side brush and the brush roller 12. In other embodiments, the outer bristles may be partially or completely eliminated and replaced by cleaning components such as flexible scrapers or sponges.

[0049] like Figure 10 Another embodiment of the side brush 13' shown is provided. In this embodiment, the side brush 13' includes a brush base 131', second bristles 132' arranged on the brush base 131', and a connecting end 133' integrally formed with the brush base 131'. The second bristles 132' include an inner row of bristles 1322' inclined inward and an outer row of bristles 1321' inclined outward.

[0050] like Figure 11-12 As shown, the lower parts of both the inner row of bristles 1322' and the outer row of bristles 1321' can extend through the lower opening 162 of the side brush cavity 16 to contact the ground, while the inner row of bristles 1322' and the outer row of bristles 1321' protrude from the front opening 163'. Both the inner row of bristles 1322' and the outer row of bristles 1322' are bristle tufts. A portion of the outer row of bristles 1321' extends through the opening 161 and laterally protrudes from the outer contour of the front portion 1031 to contact the wall; the inner row of bristles 1322' is configured such that a portion of the bristles located at the notch 1033 passes through the notch 1033 and contacts the second bristle 122 at the first end 123, thereby eliminating the cleaning blind spot between the side brush and the brush roller 12. In other embodiments, the bristles of the side brush can also have other structures, which will not be described in detail here.

[0051] Continue as Figure 5-7 As shown, a flexible seal 15 is also fixedly provided on the front part 1031. The flexible seal 15 is located outside the opening 161 of the side brush cavity 16 and is configured to surround part of the periphery of the side brush 13. The seal 15 is configured to deform and fit against the wall to close the side brush cavity 16 from the side.

[0052] In this example, the side brush 13, the front portion 1031, and the brush roller 12 can constitute a component 200, which is configured to be detachable as a whole from the cleaning base 1 after the top cover 11 is removed from the base 10. Furthermore, the side brush 13 is also configured to be detachable separately from the outside of the cleaning base 1, which facilitates user replacement or cleaning of the side brush 13.

[0053] Combination Figure 4 The 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.

[0054] Multiple first liquid supply nozzles 33 are arranged sequentially on the front portion 101 of the base 10 along the left-right direction and are in fluid communication with the roller cavity 18. With respect to the rotation direction of the brush roller 12, the first liquid supply nozzles 33 are 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 is in fluid communication with the side brush cavity 16.

[0055] 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.

[0056] The working principle of the surface cleaning machine 100 is now explained. When the surface cleaning machine 100 is performing cleaning operations on the ground away from the wall, the liquid pump 30 is started. Under the action of the liquid pump 30, the cleaning liquid in the solution 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.

[0057] 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.

[0058] When the surface cleaning machine 100 approaches the wall for cleaning, the liquid pump 30 starts, and the cleaning solution in the solution tank 22 is distributed to the first liquid 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.

[0059] 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 flow channel 32 is transported to the second supply nozzle 35 via the branch flow channel 34. The cleaning fluid from the second supply nozzle 35 wets the second bristles 132 of the side brush 13. The rotating second bristles 132 clean the surfaces (walls, floors, corners, etc.) they come 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.

[0060] 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 the contaminant recovery path under the negative pressure and stored in the contaminant tank 23.

[0061] 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 surface cleaning machine, comprising a cleaning base (1) adapted to move on a surface to be cleaned, said cleaning base (1) comprising: The seat (10) has opposing first side (103) and second side (104). A cleaning system includes a brush roller (12) and a side brush (13), the brush roller (12) being rotatably arranged between a first side portion (103) and a second side portion (104), and the side brush (13) being rotatably supported on the outside of the first side portion (103) about a horizontal axis (X2). The brush roller (12) includes a tubular core (121) and first bristles (122) covering the outer peripheral wall of the core (121). The brush roller (12) has a first end portion (123) for engaging with the first side portion (103) and a second end portion (124) away from the first end portion (123). The side brush (13) includes a brush holder (131) and second bristles (132) arranged on the brush holder (131). The waste liquid recovery system includes a waste liquid tank (23), a lower opening (181), a waste liquid recovery path located between the lower opening (181) and the waste liquid tank (23), and a suction motor (25) in fluid communication with the waste liquid tank (23). The lower opening (181) is located at the bottom of the cleaning base (1). The lower part of the brush roller (12) extends through the lower opening (181) to contact the surface to be cleaned. The lower opening (181) is configured to suck up the waste liquid and debris on the surface to be cleaned under the action of the suction motor (25). The first side portion (103) includes a front portion (1031) located between the brush roller (12) and the side brush (13). The first end (123) of the brush roller (12) and the brush holder (131) are both supported on the front portion (1031). The front portion (1031) includes a side brush cavity (16) recessed inwards. The side brush (13) is mounted in the side brush cavity (16). The side brush cavity (16) has a downward opening (162) facing the ground. The lower part of the front portion (1031) has a notch (1033). The notch (1033) allows the brush holder to... The lower opening (162) of the side brush cavity (16) is in fluid communication with the lower opening (181) below the brush roller (12), so that when the suction motor (25) is working, the side brush cavity (16) can be in fluid communication with the lower opening (181) through the notch (1033) to form a negative pressure in the side brush cavity (16); a portion of the second bristles (132) passes through the notch (1033) and intersects with a portion of the first bristles (122) located at the first end (123) of the brush roller (12) to eliminate cleaning blind spots on the surface to be cleaned located below the front portion (1031); The cleaning base (1) further includes a flexible seal (15) disposed on the front portion (1031) and located outside the opening (161) of the side brush cavity (16), configured to deform and conform to the wall to close the side brush cavity (16) from the side.

2. The surface cleaning machine according to claim 1, characterized in that, The brush roller (12) and the side brush (13) are driven to rotate by the same drive device (14).

3. The surface cleaning machine according to claim 1, characterized in that, The brush roller axis (X1) of the brush roller (12) and the horizontal axis (X2) are on the same straight line.

4. The surface cleaning machine according to claim 1, characterized in that, The second bristles (132) are partially inclined inward and are configured to pass through the notch (1033) when rotated to the notch (1033).

5. The surface cleaning machine according to claim 4, characterized in that, The length of the second bristle (132) is greater than the length of the first bristle (122).

6. The surface cleaning machine according to claim 4, characterized in that, The second bristle (132) has a harder hardness than the first bristle (122).

7. The surface cleaning machine according to claim 4, characterized in that, The second bristles (132) are distributed in clusters on the brush holder (131).

8. The surface cleaning machine according to claim 1, characterized in that, The second bristles (132) are partially inclined outward and configured to bulge laterally outward from the outer contour of the first side (103) of the seat (10).

9. The surface cleaning machine according to claim 1, characterized in that, The side brush (13) also includes a scraper (134) arranged on the brush holder (131).

10. The surface cleaning machine according to claim 1, characterized in that, The brush roller (12), the side brush (13) and the front portion (1031) are configured to be detachable from the cleaning base (1) as a component (200).

11. The surface cleaning machine according to claim 1, characterized in that, The side brush (13) is configured to be detachable separately from the outside of the cleaning base (1).

12. The surface cleaning machine according to claim 1, characterized in that, Also includes: The liquid supply system has 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).

13. The surface cleaning machine according to claim 12, characterized in that, Also includes: The upright body (2) is rotatably connected to the cleaning base (1) at its lower part. The upper part of the upright body (2) has a handle (261). The suction motor (25), solution tank (22), and sewage tank (23) are all arranged on the upright body (2).

14. The surface cleaning machine according to claim 12, characterized in that, The plurality of liquid supply nozzles (33, 35) are configured to be partially dedicated to supplying liquid to the brush roller (12) and partially dedicated to supplying liquid to the side brush (13).

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