Surface cleaning machine with rotatable scraping piece

Abstract

The surface cleaning machine comprises a floor brush shell, a power piece, a cleaning piece, a liquid separation piece and a scraping assembly, the power piece, the cleaning piece and the liquid separation piece are arranged on the floor brush shell, the scraping assembly rotates relative to the liquid separation piece, and the scraping assembly comprises a rotating part and the scraping piece arranged on the rotating part; the power piece is matched with the rotating part to enable the scraping piece to rotate, a first shielding piece used for sealing a sliding gap between the liquid separation piece and the rotating part is further arranged, the liquid separation piece and the first shielding piece are matched to form a sealing area, and the projection, facing the scraping piece, of the sealing area falls into the scraping piece. When sewage on the cleaning part is thrown down and moves towards the sliding gap under the inertia effect, the shielding part can stop the sewage, the probability that the sewage moves to the sliding gap is reduced, and therefore the probability that the sewage enters the sliding gap is further reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cleaning equipment, and particularly relates to a surface cleaning machine with a rotatable scraping member. BACKGROUND

[0002] For a cleaning machine such as a scrubber, a vacuum cleaner or a sweeper, during operation, a cleaning member is in rotational contact with a surface to be cleaned to achieve cleaning of the surface to be cleaned. The cleaning member adsorbs dirt on the surface to be cleaned onto its outer surface during rotation, and the dirt is scraped off and sucked into a sewage tank by a scraping member closely attached to the cleaning member. As the cleaning member is continuously used, the outer surface of the cleaning member is subject to wear, resulting in a continuously decreasing surface area. To maintain the abutting force between the scraping member and the cleaning member, the scraping member is usually arranged to be movable, and the scraping member can rotate relative to the liquid separating member under the drive of a driving member, so as to maintain the abutting force with the cleaning member during operation of the cleaning member, and can be separated from the cleaning member after the cleaning operation is completed to facilitate cleaning of the cleaning member, so as to adapt to different application scenarios of the cleaning member.

[0003] Since the scraping member is rotationally connected to the liquid separating member, there is a relative sliding gap between the scraping member and the liquid separating member. To prevent sewage from entering the sliding gap, a sealing portion needs to be arranged to stop the sewage. In the prior art, the sealing portion is located below the liquid separating member. The sewage splashed onto the liquid separating member by the cleaning member will slide down along the outer wall of the liquid separating member and move to the sealing portion of the sliding gap, and there is still a risk of sewage entering the sliding gap. In the prior art, the sealing portion is usually arranged to abut against the scraping member to enhance the sealing performance of the sealing portion. However, this technical solution has the following problems: the close attachment of the sealing portion to the scraping member increases the friction force between them, making it difficult for the scraping member to rotate, and the driving member needs to exert a greater force to drive the scraping member to rotate against the frictional resistance, which adversely affects the smoothness of the rotation of the scraping member; secondly, as the scraping member rotates for a long time, it will continuously rub against the sealing portion. Under the frictional force of the continuously rotating scraping member, the sealing portion and the scraping member are subject to mutual abrasion, and the abutting force between the sealing portion and the scraping member becomes weaker and weaker, resulting in a poorer and poorer sealing performance of the sealing portion, and increasing the risk of sewage entering the sliding gap. CONTENT OF THE UTILITY MODEL

[0004] The application provides a surface cleaning machine with a rotatable scraping member to solve the technical problems that in the long-term use of a conventional cleaning machine, the sealing performance of the sealing portion is weakened, the sewage is easily infiltrated between the scraping member and the liquid separating member, and the sealing portion easily affects the rotation of the scraping member.

[0005] The technical solution adopted by the application is as follows:

[0006] A surface cleaning machine with a rotatable squeegee includes a floor brush housing, a power unit, a cleaning unit, a distribution unit, and a squeegee assembly rotatable relative to the distribution unit. The squeegee assembly includes a rotating portion and a squeegee disposed on the rotating portion. The power unit cooperates with the rotating portion to rotate the squeegee. A first barrier is provided to seal a sliding gap between the distribution unit and the rotating portion. The first barrier includes a sealing portion and a barrier portion. The sealing portion is disposed in the sliding gap. The barrier portion at least partially overlaps a side of the distribution unit facing away from the cleaning unit. The distribution unit and the first barrier cooperate to define a sealed region. A projection of the sealed region in a direction toward the squeegee falls within the squeegee.

[0007] The surface cleaning machine of the present application drives the rotating part to rotate through the power member, so as to drive the scraping member to slide relative to the separating member, thereby adjusting the relative position between the scraping member and the cleaning member to adapt to different states of the cleaning member; for example, when the cleaning member is performing cleaning work, the power member drives the scraping member to maintain the abutting state with the cleaning member, so as to ensure that the scraping member has sufficient scraping force to peel off the dirt on the cleaning member; after the cleaning work of the cleaning member is completed, the power member can drive the scraping member to separate from the cleaning member, so as to facilitate the cleaning of the dirt remaining on the scraping member and the cleaning member respectively, thereby reducing the cleaning pressure on the surface cleaning machine. In addition, the surface cleaning machine of the present application is also provided with a first shielding member including a sealing part and a shielding part, wherein the sealing part is located in the sliding gap, which can effectively seal the sliding gap between the separating member and the rotating part, thereby reducing the probability of sewage entering the sliding gap and achieving the sealing effect of the inside of the scraping member and the separating member; on this basis, the first shielding member further includes a shielding part located on the side of the separating member away from the cleaning member; when the sewage on the cleaning member is thrown off and moves in the direction of the sliding gap under the action of inertia, the shielding part can stop this part of the sewage, thereby reducing the probability of its movement to the sliding gap, and further reducing the probability of the sewage entering the sliding gap. That is, the shielding part and the sealing part jointly play a double sealing role on the sliding gap, which greatly reduces the penetration rate of the sewage to the sliding gap, reduces the cleaning pressure of the surface cleaning machine and the probability of bacterial growth, helps to improve the stability of the scraping assembly during long-term work, and improves the service life and working efficiency of the cleaning machine. Furthermore, since the sealing area formed by the cooperation of the separating member and the first shielding member projects on the scraping member in the direction of the scraping member, when the sewage is thrown to the shielding part, the sewage on the shielding part will gradually move downward along the outer wall of the shielding part under the action of gravity, and be absorbed and treated together with the dirt scraped off by the scraping member, thereby avoiding the accumulation of sewage in the sealing area and reducing the cleaning pressure of the user on the surface cleaning machine. Since the first shielding member in the present application includes a shielding part, on the one hand, it can shield the sewage splashed from the cleaning member, thereby reducing the probability of this part of the sewage entering the sealing area; on the other hand, the shielding part can also stop the sewage sliding from the separating member, thereby preventing this part of the sewage from entering the sealing area. Therefore, the surface cleaning machine of the present application does not need to excessively close the sealing part and the scraping member, thereby improving the smoothness of the rotation of the scraping member, and reducing the driving pressure of the power member to drive the scraping member to rotate through the rotating part; in addition, since the sealing part and the scraping member are not excessively close, the abrasion and deformation between the sealing part and the scraping member during long-term use of the surface cleaning machine are reduced, thereby ensuring the long-term sealing property of the sealing part.

[0008] The surface cleaning machine described in the present application further includes the following additional technical features:

[0009] The lower end of the separating member abuts against the outer surface of the shielding part, and the outer surface of the separating member and the outer surface of the shielding part jointly constitute a sewage guide surface.

[0010] In the technical solution, the liquid separator is in contact with the outer surface of the shielding part, which on the one hand increases the sealing performance of the sealing area, greatly reduces the possibility of sewage entering the sealing area, and further reduces the probability of sewage entering the sliding gap; on the other hand, the sewage guide surface formed by the outer surface of the liquid separator and the outer surface of the shielding part plays a guiding role for the sewage splashed thereon. After being thrown out by the cleaning member, part of the sewage falls on the sewage guide surface under the action of inertia, and then continuously slides along the sewage guide surface under the action of gravity, reducing the probability of the sewage staying on the outer surface of the liquid separator and the outer surface of the shielding part, and reducing the cleaning pressure of the surface cleaning machine after work.

[0011] The shielding part includes a first blocking tongue extending upward to the rear side of the liquid separator, the lower end of the liquid separator is in contact with the root of the first blocking tongue, and the sealing area is located above the sealing part.

[0012] In the technical solution, the first blocking tongue is located at the rear side of the liquid separator, and the abutting position of the shielding part and the liquid separator is also located at the rear side of the liquid separator, so that the sewage splashed on the liquid separator cannot enter the sealing area through the gap at the abutting position of the shielding part and the liquid separator, and the sealing performance of the sealing area is improved. In addition, the first blocking tongue increases the blocking area of the shielding part for the sewage. Since the sealing area is located above the sealing part, the sewage splashed from the self-cleaning member and moving towards the sealing area will be blocked by the first blocking tongue and cannot enter the sealing area, further improving the sealing performance of the sealing area.

[0013] The shielding part includes a first blocking tongue extending upward to the rear side of the liquid separator, the lower end of the liquid separator is provided with a second shielding member, and the end of the second shielding member away from the liquid separator is in contact with the first blocking tongue.

[0014] In the technical solution, the first blocking tongue is located at the rear side of the liquid separator, and the abutting position of the shielding part and the liquid separator is also located at the rear side of the liquid separator, so that the sewage splashed on the liquid separator cannot enter the sealing area through the gap at the abutting position of the shielding part and the liquid separator, and the sealing performance of the sealing area is improved. In addition, the first blocking tongue increases the blocking area of the shielding part for the sewage. Since the sealing area is located above the sealing part, the sewage splashed from the self-cleaning member and moving towards the sealing area will be blocked by the first blocking tongue and cannot enter the sealing area, further improving the sealing performance of the sealing area.

[0015] The second shielding member is an elastic sealing member, and the second shielding member has a sealing protrusion bent towards the first blocking tongue at the end away from the liquid separator.

[0016] In the technical solution, the second shielding piece is an elastic sealing piece, so that the second shielding piece can be kept in abutment with the first tongue under the elastic action, the probability of the sewage entering the sealing area from the gap between the second shielding piece and the first tongue under the action of inertia is reduced, and the sealing performance of the sealing area is improved. On this basis, the second shielding piece is provided with a sealing protrusion. Since the second shielding piece is an elastic sealing piece, the sealing protrusion is driven to abut against the first tongue under the elastic force of the second shielding piece. When the sewage moves upward under the action of inertia, the sealing protrusion can stop most of the sewage, and it is difficult for a small amount of sewage to enter the small gap between the sealing protrusion and the first tongue, so that the sealing performance of the sealing area is further improved.

[0017] The shielding part further comprises a second tongue, one end of the second tongue is connected to the bottom of the first tongue, and the other end extends along the outer surface of the scraping piece and at least partially abuts against the outer surface of the scraping piece. An included angle between the first tongue and the second tongue is a, and 90°≤a≤100°.

[0018] In the technical solution, the second tongue is arranged to increase the integrity of the periphery of the sealing area. The second tongue extends along the outer surface of the scraping piece and at least partially abuts against the outer surface of the scraping piece. On the one hand, the probability of the sewage entering the interior of the scraping piece from the gap between the second tongue and the scraping piece is reduced, and the stopping effect of the second tongue on the sewage is improved. On the other hand, the included angle a between the first tongue and the second tongue is set to 90°≤a≤100°, so that the accumulation of the sewage at the connection between the first tongue and the second tongue is avoided, and the smoothness of the sewage guide surface in guiding the sewage is improved.

[0019] The scraping piece comprises comb teeth and a scraping strip, the scraping strip is located above the comb teeth, and the outer surface of the liquid separating piece, the upper surface of the first tongue and the scraping strip not covered by the first tongue constitute the sewage guide surface.

[0020] In the technical solution, the scraping piece is provided with comb teeth and a scraping strip, and the scraping strip is located above the comb teeth. When the cleaning piece rotates, the dirt attached to the cleaning piece first contacts the comb teeth, the dirt such as wire harnesses and hairs is separated under the combing of the comb teeth, and is more easily scraped off by the scraping strip to be sucked, so that the cleaning effect of the scraping piece on the cleaning piece is improved. In addition, the outer surface of the liquid separating piece, the upper surface of the first tongue and the scraping strip constitute the sewage guide surface, so that the sewage splashed on the sewage guide surface can gradually flow under the action of gravity until entering the cleaning piece through the end of the scraping strip. The probability of the sewage splashed from the cleaning piece falling on the surface to be cleaned is reduced, the probability of the secondary pollution of the sewage to the surface to be cleaned is reduced, and the cleaning effect of the surface cleaning machine is improved.

[0021] The scraping strip and / or the comb tooth are embedded between the first shielding member and the rotating part, and the first shielding member and the rotating part are integrated through secondary molding.

[0022] In the technical solution, the scraping strip and the comb tooth are arranged between the first shielding member and the rotating part, the space between the rotating part and the first shielding member is reasonably utilized, the first shielding member and the rotating part are integrated through secondary molding, the manufacturing pressure on the first shielding member and the rotating part is reduced, the first shielding member and the rotating part are manufactured in a separate structure and then processed into an integrated structure, which helps to increase the connection strength of the first shielding member and the rotating part, the first shielding member moves synchronously with the rotating part, and the sealing of the scraping assembly is ensured in real time.

[0023] The scraping member includes the comb tooth and the scraping strip, the comb tooth and the scraping strip extend along the length direction of the cleaning member, the comb tooth includes a first section located at the middle part and second sections located at both sides of the first section, the floor brush shell is provided with a dirt suction port located below the first section, and the second sections extend outwardly and obliquely from the connection positions with the first section.

[0024] In the technical solution, the comb tooth and the scraping strip extend along the length direction of the cleaning member, the coverage of the comb tooth and the scraping strip on the cleaning member is improved, and the dirt removal rate of the scraping assembly on the cleaning member is improved; the dirt suction port is arranged below the first section, and the second sections at both sides of the first section are arranged to extend obliquely toward the first section, so that the dirt scraped off by the first section is easily sucked by the dirt suction port, and the dirt scraped off by the second sections can be guided to move to the first section and be sucked by the dirt suction port, thus achieving the suction of the dirt peeled off from any position of the cleaning member in the length direction of the cleaning member by the dirt suction port, reducing the probability of dirt adhering to the scraping strip or the comb tooth, and improving the cleaning efficiency of the surface cleaning machine.

[0025] An included angle between the tooth head in the second section and the vertical surface is β, 10°≤β≤30°, and / or a projection length of the dirt suction port toward the first section direction is L1, a length of the first section is L2, and 1.5≤L2 / L1≤2.5.

[0026] In the technical solution, the included angle β between the tooth head in the second section and the vertical surface is set to 10°≤β≤30°, so that the hair and the like adhering to the comb tooth of the second section can be easily sucked into the first section, and the hair and the like on the tooth head in the second section are not easily hung on the tooth head due to the large inclination angle; and 1.5≤L2 / L1≤2.5 is set, so that the length of the first section is not too large, the suction force of the dirt suction port can meet the smooth suction of the hair dirt and the like in the first section, and it is ensured that the first section has enough space to release the entanglement with the comb tooth, and the smooth suction of the dirt is ensured.

[0027] Thanks to the above technical solution, the application has the following beneficial effects:

[0028] The surface cleaner of the present application drives the rotating part to rotate through the power member, so as to drive the scraping member to slide relative to the separating member, thereby adjusting the relative position between the scraping member and the cleaning member to adapt to different states of the cleaning member; for example, when the cleaning member is performing cleaning work, the power member drives the scraping member to keep in abutting state with the cleaning member, so as to ensure that the scraping member has sufficient scraping force to peel off dirt on the cleaning member; after the cleaning work of the cleaning member is completed, the power member can drive the scraping member to separate from the cleaning member, so as to facilitate cleaning of the dirt remaining on the scraping member and the cleaning member respectively, thereby reducing the cleaning pressure on the surface cleaner. In addition, the surface cleaner of the present application is further provided with a first shielding member including a sealing part and a shielding part, wherein the sealing part is located in the sliding gap, can effectively seal the sliding gap between the separating member and the rotating part, and reduce the probability of sewage entering the sliding gap, thereby achieving the sealing effect on the inside of the scraping member and the separating member; on this basis, the first shielding member further includes a shielding part located on the side of the separating member away from the cleaning member, when the sewage on the cleaning member is thrown off and moves in the direction of the sliding gap under the action of inertia, the shielding part can stop this part of the sewage, thereby reducing the probability of the sewage moving to the sliding gap, and further reducing the probability of the sewage entering the sliding gap. That is, the shielding part and the sealing part jointly play a double sealing role on the sliding gap, greatly reduce the penetration rate of the sewage to the sliding gap, reduce the cleaning pressure on the surface cleaner and the probability of bacterial breeding problem, help to improve the stability of the scraping assembly in long-term work, and improve the service life and working efficiency of the cleaning machine. Furthermore, since the sealing area formed by the separating member and the first shielding member projects on the scraping member in the direction of the scraping member, when the sewage is thrown to the shielding part, the sewage on the shielding part will gradually move downward along the outer wall of the shielding part under the action of gravity, and be absorbed and treated together with the dirt scraped off by the scraping member, thereby avoiding the accumulation of sewage in the sealing area, and reducing the cleaning pressure on the surface cleaner by the user. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and serve to explain the present application. In the drawings:

[0030] Figure 1 Structure schematic view of part of the surface cleaner in Example 1;

[0031] Figure 2 Partially cutaway view of the surface cleaner in Example 1 Figure 1 ;

[0032] Figure 3 Partially cutaway view of the surface cleaner in Example 1 Figure 2 ;

[0033] Figure 4 Figure 1 is a front view of a surface cleaning machine according to an embodiment of the present application;

[0034] Figure 5 Figure 2 is an enlarged view of section A of Figure 1 ; Figure 4

[0035] Figure 6 Figure 3 is an enlarged view of section B of Figure 1 ; Figure 4

[0036] Figure 7 Figure 4 is a partial cross-sectional view of a surface cleaning machine according to an embodiment of the present application; Figure 1

[0037] Figure 8 Figure 5 is a partial cross-sectional view of a surface cleaning machine according to an embodiment of the present application; Figure 2

[0038] Figure 9 Figure 6 is a partial cross-sectional view of a surface cleaning machine according to an embodiment of the present application; Figure 1

[0039] Figure 10 Figure 7 is a partial cross-sectional view of a surface cleaning machine according to an embodiment of the present application; Figure 2

[0040] Figure 11 Figure 8 is a partial cross-sectional view of a surface cleaning machine according to an embodiment of the present application; Figure 1

[0041] Figure 12 Figure 9 is a partial cross-sectional view of a surface cleaning machine according to an embodiment of the present application; Figure 2

[0042] Figure 13 Figure 10 is a partial cross-sectional view of a surface cleaning machine according to an embodiment of the present application; Figure 1

[0043] Figure 14 Figure 11 is a partial cross-sectional view of a surface cleaning machine according to an embodiment of the present application. Figure 2

[0044] Wherein:

[0045] 1 brush housing, 11 suction port;

[0046] 2 cleaning member;

[0047] 3 liquid separating member, 31 second blocking member, 311 sealing protrusion;

[0048] 4 scraping member, 41 comb tooth, 411 first section, 412 second section, 413 tooth head, 42 scraping strip;

[0049] 5 sealing portion;

[0050] 6 blocking portion, 61 first blocking tongue, 611 supporting framework, 62 second blocking tongue;​​​​​​​​​​

[0051] 7 sliding gap

[0052] 8 sealing region

[0053] 9 rotating portion DETAILED DESCRIPTION

[0054] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0055] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details and, therefore, the scope of the present application is not limited to the details disclosed herein. It is to be understood that the embodiments of the present application and the features thereof can be combined with each other unless otherwise specified and limited.

[0056] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0057] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or can be integrated; can be mechanical connection, can also be electrical connection, or can be communication; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0058] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0059] Example 1:

[0060] Surface cleaning machines for cleaning surfaces include handheld cleaning machines such as floor scrubbers and vacuum cleaners, and self-propelled cleaning machines such as robotic vacuum cleaners and mopping robots. This first embodiment uses a floor scrubber as an example to illustrate the solution. Those skilled in the art will understand that this solution can also be applied to any of the aforementioned surface cleaning machines for cleaning surfaces.

[0061] The surface cleaning machine includes a body and a floor brush pivotally connected to the body. The floor brush includes a brush housing, within which a cleaning component capable of rotating to wipe the surface to be cleaned. The cleaning component can be any wiping part that can rotate to wipe the surface, such as a single cleaning roller, double cleaning rollers, or a tracked cleaning cloth. The brush housing also includes a liquid dispensing component that sprays cleaning liquid onto the outer surface of the cleaning component while it is wiping the surface. Depending on the cleaning needs, the cleaning liquid can be detergent, water, etc. The cleaning liquid wets the bristles on the outer surface of the cleaning component, increasing the cleaning effect. The brush housing also includes a power unit and a scraping assembly including a rotating part and a scraping component. The power unit applies force to the rotating part, causing it to rotate relative to the liquid dispensing component. As the rotating part rotates, the scraping component can either contact or separate from the cleaning component. Therefore, the scraping component has a first position of contact with the cleaning component and a second position of separation with a gap. The floor brush housing also features a suction port and a wastewater tank connected to the suction port. The wastewater tank is connected to a suction motor, which generates suction force at the suction port. Some dirt on the surface to be cleaned enters the suction port under the suction force, while some dirt adhering to the cleaning components is peeled off by the scraping components and then enters the suction port under the suction force.

[0062] like Figures 1 to 3 As shown, a surface cleaning machine with a rotatable scraper 4 includes a floor brush housing 1 and a power component, a cleaning component 2, a liquid dispensing component 3, and a scraping assembly that rotates relative to the liquid dispensing component 3, all disposed on the floor brush housing 1. The scraping assembly includes a rotating part 9 and a scraper 4 disposed on the rotating part 9. The power component cooperates with the rotating part 9 to rotate the scraper 4. A first blocking component is also provided for sealing the sliding gap 7 between the liquid dispensing component 3 and the rotating part 9. The first blocking component includes a sealing part 5 and a blocking part 6 that abuts against the lower end of the liquid dispensing component 3. The sealing part 5 is located within the sliding gap 7, and the blocking part 6 is at least partially located on the side of the liquid dispensing component 3 away from the cleaning component 2. The liquid dispensing component 3 and the first blocking component cooperate to form a sealing area 8. The projection of the sealing area 8 toward the scraper 4 falls within the scraper 4.

[0063] The surface cleaner in the embodiment drives the rotating part 9 to rotate through the power member, so as to drive the scraping member 4 to slide relative to the separating member 3, thereby adjusting the relative position between the scraping member 4 and the cleaning member 2 to adapt to different states of the cleaning member 2; for example, when the cleaning member 2 is performing the cleaning work, the power member drives the scraping member 4 to keep in the abutting state with the cleaning member 2, so as to ensure that the scraping member 4 has sufficient scraping force to peel off the dirt on the cleaning member 2; the power member can drive the scraping member 4 to separate from the cleaning member 2, so that the cleaning member 2 and the scraping member 4 form a gap, under the action of the dirt suction fan, the gap forms a dirt suction channel, which facilitates the dirt or dirty liquid above the scraping member 4 to flow through the gap to the dirt suction port 11 under the action of the dirt suction fan, thereby sucking the dirt or dirty liquid remaining on the cleaning member 2 and the scraping member 4 into the dirt suction port 11 and the dirt suction pipeline to the sewage tank, especially, the scraping member 4 can peel off the winding matter such as hair winding on the surface of the cleaning member 2 by switching between the first position and the second position, without the need for the customer to manually clean the hair and other dirt winding on the surface of the cleaning member 2, thereby greatly reducing the cleaning pressure of the customer on the surface cleaner, the brush and the cleaning member 2. In addition, the surface cleaner of the present application is also provided with a first shielding member including the sealing part 5 and the shielding part 6, wherein the sealing part 5 is located in the sliding gap 7, which can effectively seal the sliding gap 7 between the separating member 3 and the rotating part 9, reduce the probability of the sewage entering the sliding gap 7, and seal the inside of the scraping member 4 and the separating member 3. On this basis, the first shielding member further includes the shielding part 6 located on the side of the separating member 3 away from the cleaning member 2, when the sewage on the cleaning member 2 is thrown down and moves in the direction of the sliding gap 7 under the action of inertia, the shielding part 6 can stop the part of the sewage, thereby reducing the probability of the sewage moving to the sliding gap 7, and further reducing the probability of the sewage entering the sliding gap 7. That is, the shielding part 6 and the sealing part 5 jointly play a double sealing role on the sliding gap 7, greatly reducing the penetration rate of the sewage to the sliding gap 7, reducing the cleaning pressure of the surface cleaner and the probability of bacterial breeding, helping to improve the stability of the long-term work of the scraping assembly, and improving the service life and working efficiency of the cleaner. Furthermore, since the sealing area 8 formed by the separating member 3 and the first shielding member projects on the scraping member 4 in the direction of the scraping member 4, when the sewage is thrown to the shielding part 6, the sewage on the shielding part 6 will gradually move downward along the outer wall of the shielding part 6 under the action of gravity, and be absorbed and treated together with the dirt scraped by the scraping member 4, thereby avoiding the accumulation of the sewage in the sealing area 8 and reducing the cleaning pressure of the user on the surface cleaner.

[0064] Since the first shielding piece in the application comprises the shielding part 6, on one hand, it can shield the sewage splashed from the self-cleaning piece 2, reducing the probability of the sewage entering the sealing area 8; on the other hand, the shielding part 6 can also stop the sewage sliding from the self-liquid piece 3, preventing the sewage from entering the sealing area 8. Therefore, the surface cleaning machine of the application does not need to excessively close the sealing part 5 and the scraping piece 4, improving the smoothness of the rotation of the scraping piece 4, and reducing the driving pressure of the power piece driving the scraping piece 4 to rotate through the rotating part 9; in addition, since the sealing part 5 and the scraping piece 4 are not excessively close, the abrasion and deformation between the sealing part 5 and the scraping piece 4 during the long-term use of the surface cleaning machine are reduced, ensuring the long-term sealing property of the sealing part 5.

[0065] Specifically, as shown in Figure 2 、 Figure 3 , the scraping piece 4 has a scraping position in contact with the outer surface of the cleaning piece 2 and a separation position separated from the cleaning piece 2, Figure 2 , the scraping piece 4 is in the scraping position, Figure 3 , the scraping piece 4 is in the separation position. When the cleaning piece 2 cleans the surface to be cleaned, the scraping piece 4 is in the scraping position to clean the dirt attached to the cleaning piece 2. When the cleaning piece 2 completes the cleaning of the surface to be cleaned and needs to be self-cleaned, the cleaning piece 2 can rotate in the opposite direction to the cleaning work, at this time the scraping piece 4 is still in the scraping position, and the scraping piece 4 can scrape and clean the dirt attached to the cleaning piece 2. Then the power piece controls the rotation of the rotating part 9, and the scraping piece 4 moves to the separation position along with it, when the scraping piece 4 is in the separation position, the dirt attached to the scraping piece 4 has enough space to be sucked by the suction port 11 to complete the self-cleaning of the cleaning piece 2. Whether the scraping piece 4 is in the scraping position or the separation position, the sealing part 5 is located in the sliding gap 7, and the shielding part 6 is at least partially located on the side of the separation piece away from the cleaning piece 2, so that the first shielding piece can maintain the continuous sealing protection of the sliding gap 7.

[0066] As a preferred embodiment of the present embodiment, as shown in Figure 2 、 Figure 3As shown, the lower end of the liquid separator 3 is in contact with the outer surface of the shielding part 6, and the outer surface of the liquid separator 3 and the outer surface of the shielding part 6 jointly form a sewage guide surface. In the technical solution, the liquid separator 3 is in contact with the outer surface of the shielding part 6, which on one hand increases the sealing performance of the sealing area 8, greatly reduces the possibility of sewage entering the sealing area 8, and further reduces the probability of sewage entering the sliding gap 7; on the other hand, the sewage guide surface jointly formed by the outer surface of the liquid separator 3 and the outer surface of the shielding part 6 plays a guiding role for the sewage splashed thereon, and after being thrown out by the cleaning member 2, part of the sewage falls on the sewage guide surface under the action of inertia, and then continuously slides along the sewage guide surface under the action of gravity, reducing the probability of the sewage staying on the outer surface of the liquid separator 3 and the outer surface of the shielding part 6, and reducing the cleaning pressure of the surface cleaning machine after work.

[0067] Preferably, when the scraping member 4 is in the scraping position, the end of the sewage guide surface is in abutment with the cleaning member 2, or the end of the sewage guide surface on the side facing the cleaning member 2 is located above the cleaning member 2, and the extension surface of the sewage guide surface is in contact with the cleaning member 2. In this way, the sewage falling on the sewage guide surface continuously slides under the action of gravity, and after leaving the sewage guide surface, it drips onto the cleaning member 2 and is sucked into the sewage suction port 11 after being scraped off by the scraping member 4. In this way, the sewage on the sewage guide surface can be prevented from dripping on the surface to be cleaned after sliding, thereby avoiding secondary pollution of the surface to be cleaned.

[0068] The shielding part 6 includes a first blocking tongue 61 extending upward to the back side of the liquid separator 3, and the lower end of the liquid separator 3 is in contact with the first blocking tongue 61, and the sealing area 8 is located above the sealing part 5. Further, the shielding part 6 includes a first blocking tongue 61 extending upward to the back side of the liquid separator 3, and the lower end of the liquid separator 3 is provided with a second shielding member 31, and the end of the second shielding member 31 away from the liquid separator 3 is in contact with the first blocking tongue 61. In the embodiment, the lower end of the front part of the liquid separator 3 is provided with the second shielding member 31, as shown in Figure 2As shown, at this time, the scraping member 4 is in the first position in contact with the cleaning member 2, the second shielding member 31 is suspended at the front of the distribution member 3, and the second shielding member 31 forms a gap with the rear part of the lower end of the distribution member 3. In this embodiment, a groove is arranged at the rear part of the lower end of the distribution member 3, and the gap is smoothly connected with the groove. The shielding part 6 includes a first blocking tongue 61 extending upward to the rear side of the second shielding member 31, and the first blocking tongue 61 extends upward from the sealing part 5. The top of the first blocking tongue 61 is inserted into the groove through the gap, and the lower end of the second shielding member 31 is in contact with the root of the first blocking tongue 61. The first blocking tongue 61 cooperates with the second shielding member 31 and the lower part of the distribution member 3 to form a sealing area 8, and the gap forms a port of the sealing area 8. The port of the sealing area 8 is downward, and the port of the sealing area 8 is arranged downward when the scraping member 4 is in contact with the cleaning member 2. Since the first blocking tongue 61 is located at the rear side of the distribution member 3, the abutting part of the first blocking tongue 61 and the distribution member 3 is also located at the rear side of the second shielding member 31. Since the first blocking tongue 61 extends upward from the sealing part 5, the first blocking tongue 61 is located above the sealing part 5. Therefore, the sealing area 8 formed by the cooperation of the first blocking tongue 61, the second shielding member 31 and the lower part of the distribution member 3 is also located above the sealing part 5, thereby forming a first resealing for blocking the dirty water above the sealing part 5. The sealing part 5 forms a second sealing for the sliding gap 7. The formation of the sealing area 8 shifts the entrance of the dirty water into the sliding gap 7 to above the sealing part 5. According to the principle of gravity and liquid flow, it is difficult for the dirty water to flow upward into the port of the sealing area 8, and it is more difficult for the dirty water to stay there. Therefore, the dirty water splashed onto the distribution member 3 cannot enter the sealing area 8, and the sealing performance of the sealing area 8 is improved. In addition, the arrangement of the first blocking tongue 61 increases the blocking area of the shielding part 6 for the dirty water. Therefore, the dirty water splashed from the cleaning member 2 and moving toward the sealing area 8 is blocked by the first blocking tongue 61 and cannot enter the sealing area 8, thereby further improving the sealing performance of the sliding gap 7.

[0069] It can be understood that the distribution member 3 can also be located above the first blocking tongue 61, and the abutting part of the distribution member 3 and the first blocking tongue 61 is located at the side of the distribution member 3 away from the cleaning member 2.

[0070] In addition, the second shielding piece 31 is arranged at the lower end of the liquid distribution piece 3, and the outer surface of the second shielding piece 31 is arranged to abut against the first blocking tongue 61 to form a sewage guide surface. According to the rotation range of the scraping assembly and the structure of the liquid distribution piece 3, the second shielding piece 31 can be adjusted in structure. The size of the second shielding piece 31 is adjusted to ensure that the first blocking tongue 61 abuts against the second shielding piece 31 at any rotation angle of the scraping piece 4, thereby ensuring the sealing performance of the sealing area 8. That is, in the present solution, the second shielding piece 31 is arranged at a lower position, and has a larger overlapping height with the first blocking tongue 61, thereby increasing the difficulty for the small amount of sewage entering the sealing area 8 to overcome the gravity and move to the sliding gap 7, and further improving the sealing performance of the sealing area 8.

[0071] In the present example, as shown in Figure 3 , when the scraping piece 4 is in the second position, the first blocking tongue 61 rotates with the rotating part 9, but the top of the first blocking tongue 61 is still above the bottom end of the sealing area 8, that is, the top of the first blocking tongue 61 is still in the gap between the second shielding piece 31 and the lower end of the liquid distribution piece 3, that is, the first blocking tongue 61, the lower end of the second shielding piece 31 and the lower end of the liquid distribution piece 3 form the sealing area 8, that is, the gap between the lower end of the second shielding piece 31 and the lower part of the liquid distribution piece 3 forms the port of the sealing area 8, at this time, the port of the sealing area 8 is still arranged downward and above the sealing part 5. When the scraping piece 4 is in the second position, the first blocking tongue 61 is above the port of the sealing area 8, so that the sealing area 8 can better form the first sealing for the sliding gap 7, and the sealing part 5 forms the second sealing for the sliding gap 7, thereby ensuring better sealing effect.

[0072] Further, the second shielding piece 31 is an integral structure with the liquid distribution piece 3 by secondary molding.

[0073] As a preferred mode of the present example, as shown in Figure 2 , Figure 3 , the second shielding piece 31 is an elastic sealing piece, and the second shielding piece 31 has a sealing protrusion 311 bent towards the first blocking tongue 61 at the end portion away from the liquid distribution piece 3.

[0074] The second shielding piece 31 is arranged as an elastic sealing piece, so that the second shielding piece 31 can be kept in abutment with the first baffle 61 under the elastic action, the probability of the sewage entering the sealing area 8 from the gap between the second shielding piece 31 and the first baffle 61 under the inertial action is reduced, and the sealing performance of the sealing area 8 is improved. On this basis, the second shielding piece 31 is provided with a sealing protrusion 311. Since the second shielding piece 31 is an elastic sealing piece, the sealing protrusion 311 is driven to abut against the first baffle 61 under the elastic force of the second shielding piece 31. When the sewage moves upward under the inertial action, the sealing protrusion 311 can stop most of the sewage, and it is difficult for a small amount of sewage to enter the small gap between the sealing protrusion 311 and the first baffle 61, further improving the sealing performance of the sealing area 8.

[0075] Preferably, as shown in Figure 2 、 Figure 3 , the shielding part 6 further comprises a second baffle 62, one end of the second baffle 62 is connected to the bottom of the first baffle 61, and the other end extends along the outer surface of the scraping piece 4 and at least partially abuts against the outer surface of the scraping piece 4. The included angle between the first baffle 61 and the second baffle 62 is a, and 90°≤a≤100°.

[0076] The arrangement of the second baffle 62 increases the integrity of the periphery of the sealing area 8. The second baffle 62 extends along the outer surface of the scraping piece 4 and at least partially abuts against the outer surface of the scraping piece 4. On the one hand, this reduces the probability of the sewage entering the interior of the scraping piece 4 from the gap between the second baffle 62 and the scraping piece 4, and improves the stopping effect of the second baffle 62 on the sewage. On the other hand, the included angle a between the first baffle 61 and the second baffle 62 is set to 90°≤a≤100°, which can avoid the accumulation of sewage at the connection between the first baffle 61 and the second baffle 62, and improve the smoothness of the sewage guide surface in guiding the sewage.

[0077] Preferably, the end of the second baffle 62 away from the first baffle 61 is located above the cleaning piece 2. In this way, the sewage sliding down from the second baffle 62 can fall on the cleaning piece 2.

[0078] Further, as shown in Figures 2 to 4 , the scraping piece 4 comprises a comb tooth 41 and a scraping strip 42, the scraping strip 42 is located above the comb tooth 41, and the outer surface of the separating piece 3 and the upper surface of the scraping strip 42 not covered by the first baffle 61 constitute a sewage guide surface.

[0079] The scraping member 4 is provided with the comb teeth 41 and the scraping strip 42, and the scraping strip 42 is located above the comb teeth 41. When the cleaning member 2 rotates, the dirt attached thereto first contacts the comb teeth 41, and the dirt such as wire harnesses and hairs that are easily entangled with the cleaning member 2 can be separated by the combing of the comb teeth 41 and can be more easily scraped off by the scraping strip 42 to be sucked, which helps to improve the cleaning effect of the scraping member 4 on the cleaning member 2. In addition, the outer surface of the liquid separating member 3, the first blocking tongue 61 and the exposed upper surface of the scraping strip 42 together form a sewage guide surface, so that the sewage splashed onto the sewage guide surface can gradually flow under the action of gravity until it moves to the cleaning member 2 through the end of the scraping strip 42, reducing the probability of the sewage splashed from the cleaning member 2 falling onto the surface to be cleaned, reducing the probability of secondary pollution of the surface to be cleaned by the sewage, and helping to improve the cleaning effect of the surface cleaning machine.

[0080] Further, as shown in Figure 2 , Figure 3 , the scraping strip 42 and the comb teeth 41 are embedded between the first blocking member and the rotating part 9, and the first blocking member and the rotating part 9 are integrated by secondary molding. By arranging the scraping strip 42 and the comb teeth 41 between the first blocking member and the rotating part 9, the space between the rotating part 9 and the first blocking member is reasonably utilized, and the first blocking member and the rotating part 9 are integrated by secondary molding, which reduces the manufacturing pressure on the first blocking member and the rotating part 9. After being manufactured in a separate structure, the first blocking member and the rotating part 9 are processed into an integrated structure, which helps to increase the connection strength of the first blocking member and the rotating part 9. The first blocking member moves synchronously with the rotating part 9, and the sealing of the scraping assembly is ensured in real time.

[0081] Preferably, the first blocking member is a plastic member. In this way, the first blocking member has good wear resistance, and the processing cost and difficulty are relatively low. It is also more beneficial for the first blocking member to better enter the rear side of the second blocking member 31, so that the first blocking member better follows the movement of the rotating part 9, and the scraping member 4 is smoothly converted between the first position and the second position.

[0082] As a preferred embodiment of the first embodiment, as shown in Figures 2 to 4 , the scraping member 4 includes the comb teeth 41 and the scraping strip 42, the comb teeth 41 and the scraping strip 42 extend along the length direction of the cleaning member 2, the comb teeth 41 include a first section 411 located at the middle and a second section 412 located at both sides of the first section 411, and the floor brush housing 1 is provided with a dirt suction port 11 located below the first section 411, and the second section 412 extends outwardly and obliquely from the connection between the first section 411 and the second section 412.

[0083] The comb teeth 41 and the scraping strips 42 are arranged to extend along the length direction of the cleaning member 2, which improves the coverage of the comb teeth 41 and the scraping strips 42 on the cleaning member 2, thereby improving the dirt removal rate of the scraping assembly on the cleaning member 2. The dirt suction port 11 is arranged below the first section 411, and the second sections 412 on both sides of the first section 411 are arranged to extend obliquely towards the first section 411, so that the dirt scraped off by the first section 411 is easily sucked by the dirt suction port 11, and the dirt scraped off by the second sections 412 can be guided to move to the first section 411 and be sucked by the dirt suction port 11. In this way, the dirt suction port 11 can suck the dirt peeled off from any position along the length direction of the cleaning member 2, which reduces the probability of the dirt adhering to the scraping strips 42 or the comb teeth 41, and improves the cleaning efficiency of the surface cleaning machine.

[0084] As a preferred example in the present embodiment, as shown in Figure 5 , the included angle between the tooth head 413 in the second section 412 and the vertical plane is β, and 10°≤β≤30°. As another preferred example in the present embodiment, as shown in Figure 6 , the projection length of the dirt suction port 11 towards the first section 411 is L1, the length of the first section 411 is L2, and 1.5≤L2 / L1≤2.5.

[0085] As yet another preferred example in the present embodiment, as shown in Figure 5 , Figure 6 , the included angle between the tooth head 413 in the second section 412 and the vertical plane is β, and 10°≤β≤30°, the projection length of the dirt suction port 11 towards the first section 411 is L1, the length of the first section 411 is L2, and 1.5≤L2 / L1≤2.5. The included angle β between the tooth head 413 in the second section 412 and the vertical plane is set to 10°≤β≤30°, so that the hair and the like adhering to the tooth head 413 in the second section 412 can be easily sucked into the first section 411, and the hair and the like on the tooth head 413 in the second section 412 are not easily hung on the tooth head 413 due to the large inclination angle. The 1.5≤L2 / L1≤2.5 is set, so that the length of the first section 411 is not too large, the suction force of the dirt suction port 11 can meet the smooth suction of the hair and the like in the first section 411, and the first section 411 has enough space to release the entanglement with the comb teeth 41, thereby ensuring the smooth suction of the dirt.

[0086] Example Two:

[0087] The structure and difference between the present example two and example one lie in the structure of the liquid distribution member 3.

[0088] As shown in Figure 7 , Figure 8As shown, the bottom end of the liquid dispensing component 3 is provided with an installation groove, and the second blocking component 31 is disposed in the installation groove. The lower end of the second blocking component 31 forms a gap with the bottom end of the liquid dispensing component 3, that is, the top of the second blocking component 31 is higher than the top of the gap. The upper end of the second blocking component 31 is higher than the upper part of the first stop tongue 61. Therefore, when the scraper 4 is in the first position, the top of the first stop tongue 61 is located at the top of the sealing area 8, and the connection between the second blocking component 31 and the liquid dispensing component 3 is located above the top port of the sealing area 8. When the scraper 4 is in the second position, the sealing area 8 is still located above the sealing part 5, and the port of the sealing area 8 is still set downward. In this embodiment, the second blocking component 31 can still ensure that no matter whether the scraper 4 is in the scraping position or the separation position, the top of the first stop tongue 61 is located behind the second blocking component 31, thus ensuring a good sealing effect and making the floor brush easier to clean.

[0089] Example 3:

[0090] The structural difference between this embodiment 3 and embodiment 1 lies in the structure of the liquid separator 3.

[0091] like Figure 9 , Figure 10 As shown, when the scraper 4 is in the scraping position, the top of the first stop tongue 61 is located at the top of the sealing area 8, and the connection between the second shielding member 31 and the liquid dispensing member 3 is flush with the top of the sealing area 8. In this embodiment, the second shielding member 31 can still ensure that the top of the first stop tongue 61 is located behind the second shielding member 31 regardless of whether the scraper 4 is in the scraping position or the separation position.

[0092] Example 4:

[0093] The structural difference between this embodiment four and embodiment one lies in the structure of the first shielding member.

[0094] like Figure 11 , Figure 12 As shown, the first shielding component, the rotating part 9, and the comb teeth 41 are integrally formed. The scraper strip 42 is embedded in the groove reserved after the three components are integrally formed and is formed into a whole with the rotating part 9 through secondary forming. In this embodiment, the connection strength between the scraping components is high, reducing the assembly pressure of the scraping components. Preferably, the first shielding component, the rotating part 9, the comb teeth 41, and the scraper strip 42 are all plastic parts, which ensures that these components are less prone to dirt accumulation and are easier to clean. At the same time, the rotation is smoother, which ensures that the scraping components can smoothly switch between the first position and the second position, improving the cleaning effect of the surface cleaning machine and reducing the customer's burden of cleaning the surface cleaning machine itself.

[0095] Example 5:

[0096] The fifth embodiment and the structure of the first embodiment are different in that the structure of the liquid separator 3 and the first shielding member.

[0097] As shown in Figure 13 、 Figure 14 , the second shielding member 31 is integrally formed with the liquid separator 3, that is, the second shielding member 31 is also a plastic structure; or the second shielding member 31 is hard rubber, and the second shielding member 31 is integrally formed with the liquid separator 3 by injection molding. A groove is provided at the bottom of the liquid separator 3, the first blocking tongue 61 extends into the groove, the groove and the first blocking tongue 61 cooperate to form a sealing area 8, the groove opening forms a port of the sealing area 8, and the front wall of the groove forms the second shielding member 31. A sealing protrusion 311 extends inwardly at the groove opening, and the sealing protrusion 311 abuts against the front surface of the first blocking tongue 61. In this embodiment, the second shielding member 31 is integrally formed with the liquid separator 3, which can also be understood as that the second shielding member 31 is part of the liquid separator 3, so that the assembly operation of the second shielding member 31 and the liquid separator 3 can be omitted, which helps to improve the assembly efficiency of the surface cleaning machine. The first blocking tongue 61 includes a support framework 611 inside and a rubber sleeve sleeved on the support framework 611. Alternatively, the first shielding member can also be made of hard rubber and integrally formed with the rotating part 9 by secondary injection molding to form an integral structure, so as to ensure the hardness of the first blocking tongue 61, so that the first blocking tongue 61 can be smoothly inserted into the groove and slide in the groove, the scraping assembly can be switched between the first position and the second position, and the elastic expansion performance of the first blocking tongue 61 is ensured, so as to ensure the sealing performance, further improve the sealing effect, improve the anti-dirt ability, improve the cleaning effect of the surface cleaning machine, and reduce the burden of the customer on the cleaning of the surface cleaning machine.

[0098] The places not mentioned in the present application can be realized by using or referring to the existing technology.

[0099] Each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other. Each embodiment mainly describes the differences from other embodiments.

[0100] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. A surface cleaning machine having a rotatable squeegee, comprising a floor brush housing, a power unit, a cleaning unit, a distribution unit and a squeegee assembly rotatable relative to the distribution unit, the squeegee assembly comprising a rotating portion and a squeegee element disposed on the rotating portion, the power unit cooperating with the rotating portion to rotate the squeegee element, characterized in that, Further, a first shielding member is arranged to seal the sliding gap between the rotating part and the liquid distributor, the first shielding member comprises a sealing part and a shielding part, the sealing part is located in the sliding gap, the shielding part is at least partially located on the side of the liquid distributor away from the cleaning member, the liquid distributor and the first shielding member form a sealing area, the projection of the sealing area in the direction of the scraping member falls within the scraping member.

2. The surface cleaner according to claim 1, wherein the lower end of the liquid distributor abuts against the outer surface of the shielding part, and the outer surface of the liquid distributor and the outer surface of the shielding part jointly form a sewage guide surface.

3. The surface cleaner according to claim 2, wherein the shielding part comprises a first blocking tongue extending upward to the back side of the liquid distributor, the lower end of the liquid distributor abuts against the root of the first blocking tongue, and the sealing area is located above the sealing part.

4. The surface cleaner according to claim 2, wherein the shielding part comprises a first blocking tongue extending upward to the back side of the liquid distributor, and the lower end of the liquid distributor is provided with a second shielding member, the end of the second shielding member away from the liquid distributor abuts against the first blocking tongue.

5. The surface cleaner according to claim 4, wherein the second shielding member is an elastic sealing member, and the end of the second shielding member away from the liquid distributor has a sealing protrusion bent toward the first blocking tongue.

6. The surface cleaner according to any one of claims 3 to 5, wherein the shielding part further comprises a second blocking tongue, one end of the second blocking tongue is connected to the bottom of the first blocking tongue, and the other end of the second blocking tongue extends along the outer surface of the scraping member and at least partially abuts against the outer surface of the scraping member, and the included angle between the first blocking tongue and the second blocking tongue is a, and 90°≤a≤100°.

7. The surface cleaner according to claim 6, wherein the scraping member comprises comb teeth and a scraping strip, the scraping strip is located above the comb teeth, and the outer surface of the liquid distributor and the upper surface of the scraping strip not covered by the first blocking tongue jointly form the sewage guide surface.

8. The surface cleaner according to claim 7, wherein the scraping strip and / or the comb teeth are embedded between the first shielding member and the rotating part, and the first shielding member and the rotating part are integrated by two-shot molding.

9. The surface cleaner according to claim 1, wherein the scraping member comprises comb teeth and a scraping strip, the comb teeth and the scraping strip extend along the length direction of the cleaning member, the comb teeth comprise a first section located in the middle and second sections located on both sides of the first section, the brush housing is provided with a sewage suction port located below the first section, and the second sections extend outward and obliquely from the connection with the first section.

10. The surface cleaner according to claim 9, wherein An included angle between the tooth head in the second section and the vertical plane is β, 10°≤β≤30°, and / or, a projection length of the sewage suction port toward the first section direction is L1, a first section length is L2, 1.5≤L2 / L1≤2.5.

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