CN216823302U - Base for surface cleaning machine - Google Patents

Abstract

The application discloses a base for surface cleaning machine, including fuselage and organism, the fuselage includes liquid supply tank and dirt collection box, and the liquid supply tank supplies with clean liquid for the organism, is equipped with the soil pick-up passageway between dirt collection box and the organism to absorb the filth of reserving on the organism, the organism is equipped with cleaning member and supporting wheel towards treating clean surface. The base comprises a first positioning part of the butt joint machine body, a second positioning part of the butt joint supporting wheel and a cleaning groove used for self-cleaning of cleaning pieces, the second positioning part is located between the first positioning part and the cleaning groove, a guide inclined plate facing the cleaning groove is arranged between the second positioning part and the cleaning groove, and the guide inclined plate guides the surface cleaning head to incline towards the cleaning groove so that the cleaning pieces are abutted to the cleaning groove. The technical problem that this application file solved provides a base for surface cleaning machine can satisfy the demand that the roller brush soaked the self-cleaning simultaneously during the automatic washing liquid backward flow to the washing tank of flying over when carrying out the self-cleaning, and the cleaning solution does not keep on the base after the self-cleaning is ended.

Description

Base for surface cleaning machine

Technical Field

The utility model relates to a domestic cleaning appliance field especially relates to a base for surface cleaning machine.

Background

The surface cleaning machine is a household cleaning appliance which is commonly used in daily life for cleaning the surface to be cleaned. The surface cleaning machine has the advantages of simple operation and clean cleaning, and also has the advantages of charging and automatic cleaning of the roller brush. Surface cleaning machines are typically provided with a mating base that can be stowed and recharged when the surface cleaning machine is placed on the base. Meanwhile, the base can also contain the roller brush to carry out self-cleaning on the surface cleaning machine, and the roller brush can be kept clean and dry without manual cleaning of a user after the cleaning electric appliance is used.

However, in prior art surface cleaning machines, there is typically some clearance between the roller brush and the surface of the base when the machine is placed on the base. The gap enables the roller brush to be completely immersed in the cleaning liquid as much as possible during self-cleaning of the surface cleaning machine, thereby achieving better cleaning effect. However, when a gap exists between the roller brush and the base, so that the surface cleaning machine performs suction, cleaning liquid in the gap cannot be conveyed into the dirt suction channel along with the rotation of the roller brush. After the roller brush is automatically cleaned, the cleaning solution remained in the gap can soak the roller brush for a long time, and the service life of the roller brush is shortened. Meanwhile, the cleaning solution in the gap is kept for a long time to cause bacteria breeding, and if the cleaning solution is not cleaned for a long time, mildew and odor can be caused.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a base for surface cleaning machine can satisfy the demand that the roller brush soaked the self-cleaning simultaneously when carrying out the self-cleaning during the automatic washing liquid backward flow of splash to the wash bowl, cleaning solution does not stay on the base after the self-cleaning is ended.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a base for surface cleaning machine, surface cleaning machine includes fuselage and organism, fuselage and organism pivotal connection, fuselage include liquid supply tank and collection dirt case, and the liquid supply tank supplies with clean liquid for the organism, is equipped with the soil pick-up passageway between collection dirt case and the organism to absorb the filth of reserving on the organism, the organism is equipped with rotatable cleaning member and supporting wheel towards treating clean surface, its characterized in that, the base is including the first location portion that docks the fuselage, the second location portion that docks the supporting wheel and the washing tank that is used for the cleaning member self-cleaning, second location portion is located between first location portion and the washing tank, and is equipped with the guide swash plate towards the washing tank between second location portion extremely the washing tank, guide swash plate guide surface cleaning head inclines towards the washing tank to make looks butt between cleaning member and the washing tank.

Furthermore, a cleaning rib is arranged in the cleaning tank.

Further, the interference magnitude between the cleaning piece and the cleaning groove is not more than 0.5 mm.

Furthermore, the first positioning part is higher than the second positioning part, and the first positioning part and the second positioning part are matched to form positioning of the rotary connection position of the machine body and the machine body.

Further, the inclination angle of the inclined guide plate is less than 15 degrees.

Further, the bottom surface of the machine body is provided with a ground scraping strip, a dirt suction gap is formed between the ground scraping strip and the cleaning piece, and the dirt suction gap is not larger than 10 mm.

Furthermore, the cleaning piece is a roller brush, and the roller brush is rotatably arranged at the front end of the machine body.

Further, the fuselage still includes the soil pick-up motor, the soil pick-up motor passes through soil pick-up passageway and collection dirt case intercommunication, the rotatory liquid that drives in the washing tank of roller brush gets into collection dirt case under the suction of soil pick-up motor.

Furthermore, one end of the second positioning part, which is close to the cleaning tank, is also provided with a blocking rib to prevent the supporting wheel from being separated from the second positioning part.

Further, the base also includes a base sidewall and a base rail, the base rail being higher than the base sidewall.

It will be appreciated by those skilled in the art that the control method of the surface cleaning system described above in the present application has at least the following beneficial effects:

1. the cleaning part of the surface cleaning machine is accommodated in the cleaning tank, and the cleaning part is abutted against the cleaning tank, so that the cleaning solution infiltrates the roller brush in the cleaning tank when self-cleaning is carried out, and the cleaning part rubs with the surface of the cleaning tank when rotating in the cleaning tank, thereby effectively scraping off dirt on the cleaning part. On the other hand, the cleaning piece takes place the friction with the washing tank bottom surface butt, and the cleaning solution that is located the washing tank bottom can be along with the rotatory dirt absorbing channel that gets into of cleaning piece, is collected to the dirty incasement of collection, can not keep somewhere in the washing tank, pollutes the cleaning piece, leads to bacterial growing.

2. The surface cleaning machine is characterized in that the machine body is pivotally connected with the machine body, and in order to stably store the surface cleaning machine on the base without toppling or twisting, the first positioning part and the second positioning part are arranged on the base, so that the center of the surface cleaning machine moves forwards while the surface cleaning machine is limited from twisting, and the surface cleaning machine is stably stored on the base.

3. When the surface cleaning machine carries out self-cleaning, the liquid supply tank supplies liquid to the cleaning part, the cleaning liquid part is filled in the cleaning groove, and the cleaning part is continuously washed by the cleaning liquid along with the rotation of the cleaning part. With the continuous delivery of the cleaning liquid and the rotation of the cleaning member, the cleaning liquid inevitably overflows or splashes out of the cleaning tank, the cleaning liquid overflowing or splashed out of the cleaning tank splashes or flows to the bottom of the machine body and cannot be collected by the dirt suction channel, the cleaning liquid on the base may flow to the electrical connection part of the base to cause short circuit, or the cleaning liquid left on the base for a long time is moldy or smelly and cannot be removed unless the user manually cleans. The guide inclined plate is arranged between the second positioning part of the base and the cleaning tank, the guide inclined plate is inclined at a certain angle to guide the cleaning liquid splashed out of the cleaning tank to return to the cleaning tank again, and meanwhile, the cleaning liquid is prevented from flowing on the base wantonly to cause short circuit of the base or the surface cleaning machine, so that the cleaning liquid is not left on the base, a user does not need to clean the base manually, and the base can also be kept clean and dry. On the other hand, the guide inclined plate is arranged between the second positioning part and the cleaning tank, so that the interference of the cleaning piece and the cleaning tank is the same, the stress of the machine body is uniform, and the center of gravity is stable.

4. The part of the base, which is close to the cleaning piece, is provided with the base fence, and the base fence is higher than the side wall of the base, so that the cleaning liquid is prevented from splashing to the ground through the front end of the cleaning piece to pollute the ground during self-cleaning.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

It should be noted that the surface cleaning apparatus of the present disclosure may be a self-propelled surface cleaning robot, or may be a hand-held surface cleaning apparatus. The self-walking surface cleaning robot comprises the structure and walking wheels for supporting and driving the surface cleaning device to walk. The base of the present disclosure is illustrated with reference to the figures in conjunction with a hand-held surface cleaning apparatus.

FIG. 1 is a schematic view of a surface cleaning apparatus with a base;

FIG. 2 is a schematic view of a cleaning member disposed on a cleaning tank according to an embodiment;

FIG. 3 is a schematic view of a cleaning member tangent to the cleaning tank according to an embodiment;

FIG. 4 is a schematic view of a dirt suction gap according to an embodiment;

FIG. 5 is a schematic view of a cleaning member of the second embodiment being placed on a cleaning tank with cleaning ribs;

FIG. 6 is a schematic view of a cleaning element and a cleaning tank in interference fit according to a third embodiment;

list of reference numerals:

100-surface cleaning machine; 200-a base; 1-a fuselage; 2-a dirt suction motor; 3, a sewage collection tank; 4, a machine body; 5, cleaning parts; 6, cleaning a tank; 7-ground scraping strip; 8, guiding inclined plates; 9-a second positioning portion; 10-a support wheel; 11 — a first positioning portion; 12-a liquid supply tank; 13-base enclosure; 14-a sewage suction channel; 15 cleaning the tendon.

Detailed Description

The technical solution in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

It is to be understood that the described embodiments are merely some embodiments and not all embodiments of the present application, and that the following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application and its applications.

It should be noted that the surface cleaning apparatus of the present disclosure may be a self-propelled surface cleaning robot, or may be a hand-held surface cleaning apparatus. The self-walking surface cleaning robot comprises the structure and walking wheels for supporting and driving the surface cleaning device to walk. The cleaning method of the present disclosure is exemplified below with reference to the drawings in conjunction with a hand-held surface cleaning apparatus.

It should be noted that in the description of the present application, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are for convenience of description only, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, each functional module may be a physical module composed of a plurality of structures, members, or electronic components, or may be a virtual module composed of a plurality of programs; each functional module may be a module that exists independently of each other, or may be a module that is functionally divided from an overall module. It should be understood by those skilled in the art that the structural mode, implementation mode and position relationship of the functional modules may not deviate from the technical principle of the present application in any way on the premise of realizing the technical scheme described in the present application, and therefore, the functional modules should fall into the protection scope of the present application.

Furthermore, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" in the description of the present application are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.

The first embodiment is as follows:

as shown in fig. 1, 2, 3 and 4, the present application provides a base 200 for a surface cleaning machine 100, the surface cleaning machine 100 is a household cleaning appliance for cleaning a surface to be cleaned, and is used for performing wet and dry cleaning on the surface to be cleaned, such as a floor, a wall surface and a table top, and the surface cleaning machine 100 can be stored, self-cleaned, charged and dried on the base 200 for the surface cleaning machine 100. The surface cleaning machine 100 includes a cleaning mode and a self-cleaning mode, which can be entered automatically when the surface cleaning machine 100 is placed on the base 200 or under manual control of a user.

The surface cleaning machine 100 comprises a machine body 1 and a machine body 4, wherein the machine body 1 and the machine body 4 are pivotally connected, and the machine body 4 can change the traveling direction according to the manual control of a user. The body 4 is provided with support wheels 10 facing the surface to be cleaned and a rotatable cleaning member 5, the cleaning member 5 being rotatable to wipe the surface to be cleaned, the cleaning member 5 being a roller brush, which may be a single roller brush, a double roller brush or a multiple roller brush. The machine body 1 comprises a liquid supply tank 12 and a sewage collection tank 3, wherein the liquid supply tank 12 can be connected with the machine body 4 through a liquid conveying channel to provide cleaning liquid for the cleaning pieces 5 on the machine body 4. Fuselage 1 still includes soil pick-up motor 2, still is equipped with soil pick-up passageway 14 between collection dirty case 3 and organism 4, and soil pick-up motor 2 passes through soil pick-up passageway 14 and collection dirty case intercommunication, and under the suction effect of soil pick-up motor 2, the filth on the cleaning member 5 is collected in collection dirty case 3 through soil pick-up passageway 14.

The base 200 of the surface cleaning machine 100 comprises a first positioning part 11, a second positioning part 9 and a cleaning tank 6, when the surface cleaning machine 100 is placed on the base 200, the machine body 1 is butted with the first positioning part 11, the supporting wheel 9 is butted with the second positioning part 9, the roller brush is accommodated in the cleaning tank 6, and the cleaning tank 6 is an arc-shaped groove. The first positioning portion 11 further includes a coupler, and the base 200 is electrically connected to the body 1 when the surface cleaning machine 100 is placed on the first positioning portion 11. The first locator 11 is higher than the second locator 9 to allow the surface cleaner 100 to be moved forward centrally to avoid tipping. The second positioning part 9 is located between the first positioning part 11 and the cleaning tank 6, the first positioning part 11 and the second positioning part 9 are matched to carry out circumferential limitation on the surface cleaning machine 100, the joint of the machine body 1 and the machine body 4 is positioned, the surface cleaning machine 100 is fixed on the base 200, and twisting and toppling are avoided. A guide inclined plate 8 is further arranged between the second positioning part 9 and the cleaning tank 6, the guide inclined plate 8 is provided with a guide inclined plate 8 which is inclined downwards from top to bottom from one end close to the second positioning part 9 to one end close to the cleaning tank 6, and the inclination angle alpha between the guide inclined plate 8 and the horizontal plane is smaller than 15 degrees. The guide inclined plate 8 may be located in the entire space from the second positioning part 10 to the washing tub 6, or may be located in a portion between the second positioning part 10 and the washing tub 6, and the edge of the guide inclined plate 8 on the side of the guide inclined plate 8 close to the washing tub 6 must be connected to the edge of the washing tub 6. When the roller brush is immersed in the cleaning tank 6 for self-cleaning, a part of the cleaning liquid splashes out of the cleaning tank 6 and falls on the guide slope plate 8 to prevent the cleaning liquid from splashing on the coupler on the first positioning portion 11 to short-circuit the base 200. Meanwhile, the splashed cleaning liquid is guided to flow into the cleaning tank 6 again along the guide inclined plate 8 under the action of gravity, so that the base 200 is prevented from being polluted, and the wetting effect of the cleaning tank 6 on the roller brush is ensured.

When the surface cleaning machine 100 is placed on the base 200, the roller brush is accommodated in the cleaning tank 6 and abuts against the cleaning tank 6, i.e., the roller brush may be tangent to the cleaning tank 6 or may be in interference fit with the cleaning tank 6. In this embodiment, the roller brush is tangent to the cleaning tank 6. The surface cleaning machine 100 can enter the self-cleaning mode automatically or upon manual control by a user. In the self-cleaning mode, the liquid supply tank 12 sprays/flows cleaning liquid to the roller brush through the liquid supply channel, part of the cleaning liquid flows around the roller brush circumferentially around the roller brush and part of the cleaning liquid flows along the roller brush into the cleaning tank 6 to wet the roller brush. The machine body 4 is also provided with an upper scraping strip in interference fit with the roller brush and a ground scraping strip 7 positioned at the bottom of the machine body 4, a dirt suction gap D1 is formed between the ground scraping strip 7 and the roller brush, and the dirt suction gap D1 is not more than 10mm and can be 3mm, 5mm, 7mm and the like. When the roller brush is accommodated on the cleaning tank 6 in the embodiment, the roller brush is tangent to the cleaning tank 6. The roller brush rotates in the cleaning tank 6 under the soaking of the cleaning liquid, dirt adhered to the roller brush is scraped off by the upper scraping strip, enters the dirt suction channel 14 under the action of the dirt suction motor 2 and is finally collected in the dirt collection tank 3. The cleaning liquid attached to the roller brush enters the dirt suction channel 14 under the suction action of the dirt suction motor 2 along with the rotation of the roller brush, and the liquid in the cleaning tank 6 flows to the position near the dirt suction gap along with the rotation of the roller brush and is collected into the dirt collection tank 3 under the suction action of the dirt suction motor 2.

When surface cleaning machine 100 is self-cleaning, cleaning elements are supplied with cleaning liquid from supply tank 12, and cleaning liquid partially fills cleaning tank 6, and cleaning elements 5 are continuously flushed with cleaning liquid as cleaning elements 5 rotate. As the cleaning liquid is continuously fed and the cleaning member is rotated, the cleaning liquid inevitably overflows or splashes out of the cleaning bath 6, the cleaning liquid overflowing or splashed out of the cleaning bath 6 splashes or runs down to the bottom of the main body 1 and cannot be collected by the dirt suction passage 14, the cleaning liquid on the base 200 may run down to the electrical connection of the base 200 to cause a short circuit, or the cleaning liquid left on the base 200 for a long time may become moldy or smelly and cannot be removed unless the user manually cleans it. The guide inclined plate 8 is arranged between the second positioning part 10 of the base 200 and the cleaning tank 6, the guide inclined plate 8 inclines at a certain angle to guide the cleaning liquid splashed out of the cleaning tank 6 to return to the cleaning tank 6 again, and meanwhile, the short circuit of the base 200 or the surface cleaning machine 100 caused by the accidental flowing of the cleaning liquid on the base 200 is avoided, so that the cleaning liquid does not remain on the base 200, a user does not need to clean the base 200 manually, and the base 200 can be kept clean and dry. On the other hand, the inclined guide plate 8 is arranged between the second positioning part 10 and the cleaning tank 6, so that the interference of the part of the cleaning piece 5 abutted against the cleaning tank 6 is the same, the stress of the machine body 4 is uniform, and the gravity center is stable.

The cleaning member of the surface cleaning machine 100 is accommodated in the cleaning tank 6 and is abutted against the cleaning tank 6, so that, on the one hand, cleaning liquid soaks the roller brush in the cleaning tank 6 when performing self-cleaning, and meanwhile, the cleaning member rubs against the surface of the cleaning tank 6 when rotating in the cleaning tank 6, thereby effectively scraping off dirt on the cleaning member. On the other hand, the cleaning part rubs with the bottom surface butt of washing tank 6, and the cleaning liquid that is located the washing tank 6 bottom can get into soil pick-up passageway 14 along with the rotation of cleaning part 5, is collected to album dirty case 3 in, can not keep somewhere in washing tank 6, pollutes cleaning part 5, leads to bacterial growing.

Example two:

as shown in fig. 5, the present embodiment is different from the other embodiments in that a washing rib 15 is provided in the washing tub 6, and the cleaning member 5 abuts against the washing rib 15 when being placed in the washing tub 6. When cleaning members 5 are rotated in cleaning tank 6 for self-cleaning, cleaning ribs 15 in cleaning tank 6 scrape cleaning members 5 and assist cleaning members 5 in self-cleaning.

Dirt adhered to the cleaning piece 5 is prevented from being thrown off under the action of centrifugal force only by means of rotation of the cleaning piece 5, the cleaning ribs 15 scrape the roller brush to reduce the adhesion force of the dirt on the cleaning piece 5, and the cleaning piece 5 becomes moldy and smelly.

Example three:

as shown in FIG. 6, this embodiment differs from the other embodiments in that when surface cleaning machine 100 is placed on base 200, cleaning elements 5 are in interference contact with cleaning tank 6, and the interference D2 is not greater than 0.5mm, for example, the interference may be 0.3mm, 0.4mm, etc.

The surface cleaning machine 100 can enter the self-cleaning mode automatically or upon manual control by a user when the machine 100 is placed on the base 200. In the self-cleaning mode, the liquid supply tank 12 sprays/flows cleaning liquid to the roller brush through the liquid supply channel, part of the cleaning liquid flows around the roller brush circumferentially around the roller brush and part of the cleaning liquid flows along the roller brush into the cleaning tank 6 to wet the roller brush. The machine body 4 is also provided with an upper scraping strip in interference fit with the roller brush and a ground scraping strip 7 positioned at the bottom of the machine body 4, and a dirt absorbing gap is formed between the ground scraping strip 7 and the roller brush. The roller brush is in interference fit with the cleaning tank 6, the roller brush rotates in the cleaning tank 6, scrapes the cleaning tank 6 to reduce or peel off the adhesion force of dirt adhered to the roller brush, and cleaning liquid for wetting/washing the roller brush is carried or flows to the vicinity of a dirt suction gap along with the rotation of the roller brush and is collected into the dirt collection tank 3 under the suction force of the dirt suction motor 2.

The cleaning member of the surface cleaning machine 100 is accommodated in the cleaning tank 6, and the cleaning member is in interference fit with the cleaning tank 6, so that on one hand, cleaning liquid soaks the roller brush in the cleaning tank 6 when self-cleaning is performed, and meanwhile, the cleaning member rubs against the surface of the cleaning tank 6 when rotating in the cleaning tank 6, and dirt on the cleaning member can be effectively scraped off. On the other hand, the cleaning piece takes place the friction with 6 bottom surfaces interference fit of washing tank, and the cleaning liquid that is located 6 bottoms of washing tank can get into soil pick-up passageway 14 along with the rotation of cleaning piece 5, is collected to collection dirt case 3 in, can not keep somewhere in washing tank 6, pollutes cleaning piece 5, leads to bacterial growing.

Example four:

as shown in fig. 1, the present embodiment is different from other embodiments in that a blocking rib (not shown) is further disposed at one end of the second positioning portion 10 close to the cleaning tank 6.

When the surface cleaning machine 100 is placed on the base 200, the first positioning portion 11 and the second positioning portion 10 cooperate to position the rotational connection between the body 1 and the body 4 of the surface cleaning machine 100. The central forward movement of the surface cleaning machine 100 prevents the surface cleaning machine 100 from tipping forward. Slight chatter may occur when the surface cleaning machine 100 is self-cleaning. A guide inclined plate 8 inclined downwards from top to bottom is arranged between the second positioning part 10 and the cleaning tank 6, a gravity component parallel to the guide inclined plate 8 exists when the machine body 4 is placed on the base 200 in an inclined mode, and the support wheels 9 run the risk of sliding along the guide inclined plate 8 under the action of gravity when the surface cleaning machine 100 shakes. Set up at second location portion 10 and be close to washing tank 6 one end and block the muscle, supplementary second location portion 10 carries on spacingly to supporting wheel 9, avoids supporting wheel 9 to deviate from second location portion 10, guarantees the stable of surface cleaning machine 100 and places.

Example five:

as shown in fig. 1, the difference between the present embodiment and other embodiments is that the base 200 further includes a base sidewall and a base fence, the base 200 fence is located at the front end of the base 200 and can further extend along the sidewall of the base, the base fence 13 is higher than the base sidewall, when the surface cleaning machine 100 is placed on the base 200 and the roller brush is immersed in the cleaning tank 6 for cleaning, the base fence 13 shields the front and the side of the roller brush, so as to prevent the cleaning liquid from splashing out of the cleaning tank 6 and splashing down to the ground to pollute the ground.

So far, the technical solutions of the present application have been described in connection with the foregoing embodiments, but it is easily understood by those skilled in the art that the scope of protection of the present application is not limited to these specific embodiments. The technical solutions in the above embodiments can be split and combined, and equivalent changes or substitutions can be made on related technical features by those skilled in the art without departing from the technical principles of the present application, and any changes, equivalents, improvements, and the like made within the technical concept and/or technical principles of the present application will fall within the protection scope of the present application.

Claims (10)

1. The utility model provides a base for surface cleaning machine, surface cleaning machine includes fuselage and organism, fuselage and organism pivotal connection, the fuselage includes liquid feed tank and collection dirt case, and the liquid feed tank supplies with cleaning fluid for the organism, is equipped with the soil pick-up passageway between collection dirt case and the organism to absorb the filth of reserving on the organism, the organism orientation is treated the surface and is equipped with rotatable cleaning piece and supporting wheel to clean, its characterized in that, the base is including the first location portion that docks the fuselage, the second location portion that docks the supporting wheel and be used for cleaning piece self-cleaning's washing tank, second location portion is located between first location portion and the washing tank, and is equipped with the guide swash plate towards the washing tank between second location portion extremely the washing tank, guide swash plate guide surface cleaning head inclines towards the washing tank to make cleaning piece and washing tank butt joint.

2. A base for a surface cleaning machine as claimed in claim 1, wherein the cleaning tank is further provided with cleaning ribs.

3. A base for a surface cleaning machine as claimed in any one of claims 1 to 2, characterized in that the interference between the cleaning elements and the cleaning tank is not more than 0.5 mm.

4. The base for the surface cleaning machine as claimed in any one of claims 1 to 2, wherein the first positioning part is higher than the second positioning part, and the first positioning part and the second positioning part are matched to form the positioning of the rotating connection part of the machine body and the machine body.

5. The base of any one of claims 1-2, wherein the angle of inclination of the sloping guide plate is less than 15 degrees.

6. A base for a surface cleaning machine as claimed in any one of claims 1 to 2, wherein the underside of the machine body is provided with a floor scraping strip which forms a dirt pick-up gap with the cleaning member, the dirt pick-up gap being no more than 10 mm.

7. A base for a surface cleaning machine as claimed in any one of claims 1 to 2, characterised in that the cleaning elements are roller brushes which are rotatably mounted at the forward end of the machine body.

8. The base for the surface cleaning machine as claimed in claim 7, wherein the body further comprises a dirt suction motor, the dirt suction motor is communicated with the dirt collection tank through a dirt suction passage, and the roller brush rotates to drive liquid in the cleaning tank to enter the dirt collection tank under suction force of the dirt suction motor.

9. The base for the surface cleaning machine as claimed in claim 4, wherein the second positioning portion is further provided with a blocking rib at an end thereof close to the cleaning tank to prevent the support wheel from being released from the second positioning portion.

10. The base for a surface cleaning machine of any one of claims 1-2, wherein the base further comprises a base sidewall and a base rail, the base rail being higher than the base sidewall.

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