CN216876222U

CN216876222U - Flour cleaning head, flour cleaning machine and floor washing machine

Info

Publication number: CN216876222U
Application number: CN202122794868.1U
Authority: CN
Inventors: 霍顺天; 山冬晓; 蔡演强
Original assignee: Guangdong Deerma Technology Co Ltd
Current assignee: Guangdong Deerma Technology Co Ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-07-05
Anticipated expiration: 2031-11-15

Abstract

The utility model discloses a surface cleaning head, a surface cleaning machine and a floor washing machine. The surface cleaning head comprises a casing and a rolling brush assembly, the rolling brush assembly comprises a first rolling brush and a second rolling brush, and the casing The front part of the casing is provided with a first rolling brush chamber, the rear part of the casing is provided with a second rolling brush chamber, the first rolling brush is set in the first rolling brush chamber, and the second rolling brush is set in the In the second rolling brush chamber, the casing is provided with a main suction channel, a first flow channel and a second flow channel, the lower end of the main suction channel constitutes a main suction port, and the first port of the first flow channel is connected to the The first rolling brush chamber is communicated, the second port of the first flow channel is communicated with the main suction port, the first port of the second flow channel is communicated with the second rolling brush chamber, and the second port of the second flow channel is communicated with the second rolling brush chamber. The second port communicates with the main suction port, and the main suction channel extends obliquely toward the first rolling brush chamber in a direction from top to bottom. The surface cleaning head of the embodiment of the utility model has high cleaning effect and efficiency.

Description

Flour cleaning head, flour cleaning machine and floor washing machine

Technical Field

The utility model relates to the technical field of cleaning, in particular to a surface cleaning head, a surface cleaning machine and a floor washing machine.

Background

A surface cleaning machine such as a vacuum cleaner, a floor washer, etc., mainly includes a main body and a surface cleaning head, which mainly includes a housing and a roll brush mounted on the housing, and has a suction passage and a guide passage therein. However, in the related art, the suction channel and the flow guide channel of the surface cleaning head are not reasonable enough in design, the cleaning effect is poor, and the use experience of a user is influenced.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

To this end, embodiments of the present invention provide a surface cleaning head with high cleaning efficiency.

The embodiment of the utility model also provides a surface cleaning machine.

The embodiment of the utility model also provides a floor washing machine.

The surface cleaning head of the embodiment of the utility model comprises: casing and round brush subassembly, the round brush subassembly includes first round brush and second round brush, the front portion of casing is equipped with first round brush room, the rear portion of casing is equipped with the second round brush room, first round brush is located in the first round brush room, the second round brush is located in the second round brush room, be equipped with main passageway, first runner and second runner of inhaling in the casing, the main lower extreme of inhaling the passageway constitutes main suction inlet, the first port of first runner with first round brush room intercommunication, the second port of first runner with main suction inlet intercommunication, the first port of second runner with second round brush room intercommunication, the second port of second runner with main suction inlet intercommunication, the main passageway of inhaling is followed downward direction orientation first round brush room extends aslope.

According to the surface cleaning head of the embodiment of the utility model, the main suction channel extends obliquely towards the first rolling brush chamber from top to bottom, so that the first rolling brush and the first flow channel which play a main cleaning function can suck garbage more smoothly, namely the first rolling brush and the second flow channel can obtain larger suction force distributed by the main suction channel, and the cleaning effect and efficiency can be improved.

In some embodiments, in a plane orthogonal to the axial directions of the first and second rolling brushes, an angle α 1 is formed between the axial direction of the main suction passage and the axial direction of the first flow passage, wherein 90 ° < α 1 ≦ 140 °.

In some embodiments, the area of the second port of the first flow passage is greater than the area of the second port of the second flow passage.

In some embodiments, the area of the main suction opening is S1, the area of the second port of the first flow passage is S2, wherein S1/S2 is more than or equal to 1 and less than or equal to 8; and/or the area of the second port of the second flow passage is S3, wherein S1/S3 is more than or equal to 1 and less than or equal to 8.

In some embodiments, wherein 1 < S2/S3 ≦ 5.

In some embodiments, the central angle of the arcuate face of the first roller brush opposite the first port of the first flow channel is α 2, wherein α 2 is 20 ° or more and 50 ° or less; and/or the central angle of the arc-shaped surface of the second rolling brush opposite to the first port of the second flow channel is alpha 3, wherein the alpha 3 is more than or equal to 20 degrees and less than or equal to 50 degrees.

In some embodiments, the cross-sectional area of the first flow passage is constant or gradually decreases in a direction from the first port of the first flow passage toward the second port of the first flow passage; and/or the cross-sectional area of the second flow passage gradually decreases in a direction from the first port of the second flow passage toward the second port of the second flow passage.

In some embodiments, the lower wall surface of the first flow passage is a horizontal surface, and the upper wall surface of the first flow passage is a horizontal surface or is inclined downward in a direction from the first port of the first flow passage toward the second port of the first flow passage; and/or the lower wall surface of the second flow passage is a horizontal surface or is inclined downwards from the first port of the second flow passage to the second port of the second flow passage, and the upper wall surface of the second flow passage is inclined downwards from the first port of the second flow passage to the second port of the second flow passage.

In some embodiments, an upper wall surface of the first flow passage is inclined downward in a direction from the first port of the first flow passage toward the second port of the first flow passage, wherein an inclination angle γ 2 of the upper wall surface of the second flow passage is greater than an inclination angle γ 1 of the upper wall surface of the first flow passage.

In some embodiments, the housing has a water spray passage therein, the water spray passage having a water inlet and a water spray for spraying water toward at least one of the first rolling brush, the second rolling brush and the surface to be cleaned, a reservoir is provided in the housing, the reservoir is located between the second port of the first flow passage and the second port of the second flow passage, and a projection of the main suction opening in a horizontal plane is located in the reservoir.

In some embodiments, a first wiper blade and a second wiper blade are disposed within the housing, the first wiper blade being adjacent to an upper edge of the first port of the first flow passage and extending into the first rolling brush chamber to abut the first rolling brush; the second wiper blade is adjacent to the upper edge of the first port of the second flow channel and extends into the second rolling brush chamber to be abutted against the second rolling brush, the water spray opening is formed in the wall surface of the first rolling brush chamber and is opposite to the first rolling brush, and the water spray opening is higher than the first wiper blade.

In some embodiments, the width to height ratio of the second port of the first flow passage is 0.8-15, and/or the width to height ratio of the second port of the second flow passage is 0.8-15.

The surface cleaning machine of the embodiment of the utility model comprises: the plane cleaning head is the plane cleaning head of the embodiment.

The floor washing machine comprises a machine body and a surface cleaning head connected with the machine body, wherein the surface cleaning head is the surface cleaning head in the embodiment, the machine body comprises a machine body, and a water purification tank, a sewage tank and a suction assembly which are arranged on the machine body, a water purification channel and a suction channel are arranged in the machine body, the upper end of the water purification channel is connected with the water purification tank, the lower end of the water purification channel is communicated with the surface cleaning head to spray water towards at least one of the first rolling brush, the second rolling brush and a surface to be cleaned, the lower end of the suction channel is communicated with a main suction channel of the surface cleaning head, a sewage container is arranged on the suction channel, and the suction assembly is used for generating negative pressure in the suction channel.

According to the surface cleaning machine and the floor washing machine provided by the embodiment of the utility model, the main suction channel of the surface cleaning head obliquely extends towards the first rolling brush chamber from top to bottom, so that the first rolling brush and the first flow channel which have the main cleaning function can suck garbage more smoothly, namely, the first rolling brush and the second flow channel obtain larger suction force distributed by the main suction channel, and the cleaning effect and efficiency are improved.

Drawings

Fig. 1 is a perspective view schematically showing a surface cleaning machine according to an embodiment of the present invention.

Fig. 2 is a schematic bottom view of a face cleaning head of an embodiment of the present invention.

Fig. 3 is a cross-sectional view a-a of fig. 2.

Fig. 4 is a cross-sectional view B-B of fig. 2.

Fig. 5 is a cross-sectional view of C-C in fig. 2.

Fig. 6 is another view of a face cleaning head of an embodiment of the present invention.

Fig. 7 is a schematic view of a face cleaning head of an embodiment of the present invention with the first roll brush and the sole plate removed.

Reference numerals are as follows:

100. a face cleaning head; 200. a body; 201. a body; 202. a water purifying tank; 203. a sewage tank; 204. a suction assembly;

1. a housing; 11. a main suction passage; 111. a main suction opening; 12. a first flow passage; 121. a first upper wall surface; 122. a first lower wall surface; 13. a second flow passage; 131. a second upper wall surface; 132. a second lower wall surface; 16. a liquid storage plate; 161. a liquid storage tank; 17. a first roll brush chamber; 18. a second roll brush chamber;

2. a roll brush assembly; 21. a first rolling brush; 22. a second rolling brush; 23. a first wiper blade; 24. a second wiper blade;

3. a water spray channel; 31. and a water spraying opening.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

A floor cleaning head, a floor cleaning machine and a scrubber according to embodiments of the present invention will now be described with reference to figures 1 to 7.

As shown in fig. 1 to 7, a surface cleaning head 100 according to an embodiment of the present invention includes a housing 1 and a roll brush assembly 2, the roll brush assembly 2 including a first roll brush 21 and a second roll brush 22, a first roll brush chamber 17 provided at a front portion of the housing 1, and a second roll brush chamber 18 provided at a rear portion of the housing. The first rolling brush 21 is provided in the first rolling brush chamber 17, and the second rolling brush 22 is provided in the second rolling brush chamber 18. A main suction passage 11, a first flow passage 12 and a second flow passage 13 are provided in the housing 1, and a lower end of the main suction passage 11 constitutes a main suction port 111.

Specifically, the first rolling brush 21 is provided at the front of the casing 1, the second rolling brush 22 is provided at the rear of the casing 1, and the main suction opening 111 is provided on the bottom surface of the casing 1. The first flow passage 12 is located in front of the second flow passage 13, and a first port (e.g., a front port, a right port, of the first flow passage 12 in fig. 5) of the first flow passage 12 communicates with the first drum brush chamber 17, and a second port (e.g., a rear port, a left port, of the first flow passage 12 in fig. 5) of the first flow passage 12 communicates with the main suction port 111. A first port (e.g., a rear port, a left port, of the second flow passage 13 in fig. 5) of the second flow passage 13 communicates with the second brush chamber 18, and a second port (e.g., a front port, a right port, of the second flow passage 13 in fig. 5) of the second flow passage 13 communicates with the main suction opening 111. The main suction passage 11 extends obliquely toward the first roll brush chamber 17 in the top-down direction, for example, in fig. 5, the main suction passage 11 extends obliquely rightward in the top-down direction.

According to the surface cleaning head of the embodiment of the utility model, the main suction channel extends obliquely towards the first rolling brush chamber from top to bottom, so that the first rolling brush and the first flow channel which play a main cleaning function can suck garbage more smoothly, namely the first rolling brush and the second flow channel obtain larger suction force distributed by the main suction channel, and the cleaning effect and efficiency are improved.

Preferably, as shown in FIG. 5, in a plane orthogonal to the axial directions of the first and second rolling brushes 21 and 22, the angle between the axial direction of the main suction passage 11 and the axial direction of the first flow passage 12 is α 1, where 90 ° < α 1 ≦ 140 °. The inventor of the present invention found through experimental studies that when the angle α 1 between the axial direction of the main suction passage 11 and the axial direction of the first flow passage 12 satisfies the above range, the smoothness of the dust suction by the surface cleaning head 100 can be further improved. For example, α 1 may be 90 °, 100 °, 120 °, or 140 °.

In some embodiments, the area of the second port of the first flow passage 12 is greater than the area of the second port of the second flow passage 13. In the face cleaning head 100 of the embodiment of the present invention, the second port of the first flow channel 12 is larger than the second port of the second flow channel 13, the face cleaning head 100 can suck relatively more garbage through the first rolling brush 21 and the first flow channel 12, that is, the first rolling brush and the first flow channel play a main cleaning role, and the face cleaning head 100 can suck relatively less garbage through the second rolling brush 22 and the second flow channel 13 and play a secondary cleaning role, so that the suction force of the main suction port 111 can be more reasonably distributed to the first flow channel 12, and the cleaning effect and the cleaning efficiency are further improved.

In some embodiments, the area of the main suction opening 11 is S1, and the area of the second port of the first flow passage 12 is S2, wherein 1 ≦ S1/S2 ≦ 8. Optionally, the area of the second port of the second flow passage 13 is S3, wherein 1 ≦ S1/S3 ≦ 8. The inventor of the present invention has found through experimental studies that when the area S1 of the main suction opening 11, the area S2 of the second port of the first flow passage 12, and the area S3 of the second port of the second flow passage 13 satisfy the above relational expression, the fluency of the surface cleaning head 100 in sucking the garbage can be further improved, thereby improving the cleaning effect. For example, S1/S2 can be 1, 3, 5, and 8; S1/S3 can be 1, 3, 5, and 8.

In some embodiments, wherein 1 < S2/S3 ≦ 5. The inventors of the present invention found through experimental studies that, when the area S2 of the second port of the first flow channel 12 and the area S3 of the second port of the second flow channel 13 satisfy the above-described relationship, the suction effect of the first roll brush 21 and the first flow channel, which function as the main cleaning, can be further improved, thereby improving the cleaning effect. For example, the ratio of S2/S3 may be 2, 3, 4, or 5.

In some embodiments, as shown in FIG. 6, the central angle of the arc-shaped face of the first roll brush 21 corresponding to the first port of the first flow path 12 is α 2, wherein 20 ° ≦ α 2 ≦ 50 °. Optionally, the central angle of the arc-shaped surface of the second round brush 22 corresponding to the first port of the second flow channel 13 is α 3, wherein 20 ° ≦ α 3 ≦ 50 °. The inventor of the present invention found through experimental studies that, when α 2 and α 3 satisfy the above range, power consumption of the surface cleaning head 100 can be reduced, and the structural design of the surface cleaning head 100 is more reasonable, facilitating the suction of the surface cleaning head 100 to the garbage. For example, α 2 and α 3 may be 20 °, 30 °, 40 °, or 50 °.

In some embodiments, as shown in fig. 3 and 4, the width of the second port of the first flow passage 12 in the axial direction of the first roller brush 21 is L1, and the height of the second port of the first flow passage 12 in the height direction of the housing 1 is L2, wherein L1/L2 is 0.8 ≦ L1 ≦ 15. The width of the second port of the second flow passage 13 along the axial direction of the second rolling brush 22 is L3, and the height of the second port of the second flow passage 13 along the height direction of the housing 1 is L4, wherein L3/L4 is more than or equal to 0.8 and less than or equal to 15. The inventors of the present invention have found through experimental studies that when L1/L2 and L3/L4 satisfy the above range, the cleaning efficiency of the surface cleaning head 100 can be improved.

Further, the cross-sectional area of the first flow passage 12 is constant in a direction (in a front-to-rear direction in fig. 5) in which the first port of the first flow passage 12 faces the second port of the first flow passage 12. In other words, the cross-sectional area of the first flow channel 12 along the length direction thereof is constant, for example, the lower wall surface 122 of the first flow channel 12 is a horizontal surface, and the upper wall surface 121 of the first flow channel 12 is a horizontal surface, so that the solid waste can flow in the first flow channel 12 conveniently, and the working efficiency of the surface cleaning head 100 for cleaning the solid waste is improved.

Alternatively, as shown in fig. 5, the cross-sectional area of the first flow channel 12 gradually decreases in a direction from the first port of the first flow channel 12 toward the second port of the first flow channel 12 (e.g., in a direction from front to back in fig. 5), for example, the upper wall surface 121 of the first flow channel 12 is inclined downward in a direction from the first port of the first flow channel 12 toward the second port of the first flow channel 12, so as to absorb the garbage, and to prevent the liquid garbage from flowing back toward the first rolling brush chamber, thereby improving the working efficiency of the surface cleaning head 100 in cleaning the solid garbage.

Alternatively, the upper wall surface 131 of the second flow channel 13 is inclined downward in a direction from the first port of the second flow channel 13 toward the second port of the second flow channel 13, wherein the inclination angle γ 2 of the upper wall surface 131 of the second flow channel 13 is greater than the inclination angle γ 1 of the upper wall surface 121 of the first flow channel 12, so that the garbage can be further facilitated to flow in the first flow channel 12 and the second flow channel 13, and the work efficiency of the surface cleaning head 100 for cleaning the garbage is improved.

In some embodiments, the lower wall surface 132 of the second flow channel 13 is horizontal, or the lower wall surface 132 of the second flow channel 13 is inclined downwardly in a direction from the first port of the second flow channel 13 toward the second port of the second flow channel 13, thereby further facilitating the flow of the garbage within the second flow channel 13 and improving the efficiency of the face cleaning head 100 in cleaning solid garbage.

Further, the upper wall surface 131 of the second flow passage 13 is inclined downward in a direction from the first port of the second flow passage 13 toward the second port of the second flow passage 13. Thereby facilitating the collection of sewage by the surface cleaning head 100 and improving the cleaning effect of the surface cleaning head 100 on liquid garbage.

Specifically, as shown in fig. 5 and 6, the cross-sectional area of the second flow passage 13 gradually decreases in a direction from the first port of the second flow passage 13 toward the second port of the second flow passage 13 (in a direction from the rear to the front in fig. 5). Specifically, the second upper wall surface 131 and the second lower wall surface 132 are spaced apart in a height direction (up-down direction in fig. 3) of the housing 1 to define the second flow passage 13, and the second upper wall surface 131 is gradually inclined toward the second lower wall surface 132 in a direction in which a first end of the second upper wall surface 131 faces a second end of the second upper wall surface 131. It can be appreciated that, as the second upper wall surface 131 is inclined downwards gradually in the direction from back to front, the waste water on the second upper wall surface 131 can flow towards the main suction opening 111 gradually through the inclined surface, so that the face cleaning head 100 can collect the waste water conveniently, and the cleaning effect of the face cleaning head 100 on the liquid waste is improved.

Alternatively, as shown in fig. 5 and 6, the plane where the axis of the first rolling brush 21 and the axis of the second rolling brush 22 are located is parallel to at least one of the plane where the first lower wall surface 122 is located and the plane where the second lower wall surface 132 is located, and it can be understood that the surface of the first lower wall surface 122 and the surface of the second lower wall surface 132 are parallel to the working plane of the surface cleaning head 100, so that the smoothness of the first flow channel 12 when absorbing the garbage can be improved, and the cleaning efficiency of the surface cleaning head 100 can be improved to some extent.

In some embodiments, as shown in fig. 5 and 6, the housing 1 further includes a liquid storage plate 16, a liquid storage tank 161 is disposed on the liquid storage plate 16, the liquid storage plate 16 is disposed between the first lower wall surface 122 and the second lower wall surface 132, and a projection of the lower port of the main suction port 111 on the liquid storage plate 16 is located in the liquid storage tank 161. It can be understood that the liquid storage tank 161 is located right below the main suction opening 111, so that when the face cleaning head 100 stops working, sewage attached to the main suction opening 111 can fall back into the liquid storage tank 161 to prevent the sewage from flowing to the outside along the first flow channel 12 and the second flow channel 13, reliability of the face cleaning head 100 in use is improved, and user experience is good.

In some embodiments, as shown in fig. 5 to 7, the housing 1 has a water spray channel 3 therein, the water spray channel 3 having a water inlet and a water spray 31 for spraying water toward at least one of the first rolling brush 21, the second rolling brush 22 and the surface to be cleaned. Preferably, a first wiper blade 23 is provided in the housing 1, and the first wiper blade 23 extends into the first rolling brush chamber 17 to abut against the first rolling brush 21. Optionally, a second wiper blade 24 is further arranged in the housing 1, the second wiper blade 24 extending into the second roller brush chamber 18 to abut against the second roller brush 22. The surface cleaning head 100 according to the embodiment of the present invention can spray water to the first round brush 21 and/or the second round brush 22 through the water spray passage 3, and scrape contaminated water from the first round brush 21 and the second round brush 22 through the first wiper blade 23 and the second wiper blade 24, so that the first round brush 21 and the second round brush 22 can be cleaned, and the cleaning effect of the surface cleaning head 100 can be improved.

Specifically, as shown in fig. 5 and 6, the first wiper blade 23 is adjacent to an upper edge of the first port of the first flow passage 12, and/or the second wiper blade 24 is adjacent to an upper edge of the first port of the second flow passage 13. The water jet 31 is provided on the wall surface of the first roll brush chamber 17 so as to face the first roll brush 21, and the water jet 31 is provided higher than the first wiper blade 23. It can be understood that, taking the first rolling brush 21 as an example, when the first rolling brush 21 rotates clockwise, the water spraying port 31 is located downstream of the first wiper blade 23, the first wiper blade 23 can prevent the main suction port 111 from directly sucking the clean water sprayed from the water spraying port 31, and the clean water can be brought to the floor for scrubbing along the rotation direction of the first rolling brush 21 due to the clockwise rotation of the first rolling brush 21, thereby improving the cleaning effect of the surface cleaning head 100.

Alternatively, as shown in fig. 7, the water jetting port 31 may be plural, and the plural water jetting ports are arranged at intervals in the axial direction of the first rolling brush chamber 17, so that the first rolling brush 21 can be jetted sufficiently and comprehensively, thereby improving the cleaning effect of the surface cleaning head 100.

In some embodiments, as shown in FIG. 6, the distance between the first port of the first flow passage 12 and the second port of the first flow passage 12 is L5, wherein L5 is 10mm 50 mm. The distance between the first port of the second flow passage 13 and the second port of the second flow passage 13 is L6, wherein L6 is 10mm or more and 50mm or less. It will be appreciated that the first flow passage 12 has a dimension L5 along its length and the second flow passage 13 has a dimension L6 along its length. The inventors of the present invention have found through experimental studies that, when the distance L5 between the first port of the first flow passage 12 and the second port of the first flow passage 12 and the distance L6 between the first port of the second flow passage 13 and the second port of the second flow passage 13 satisfy the above range, higher cleaning efficiency and better cleaning effect of the surface cleaning head 100 can be achieved, and the spatial structure within the surface cleaning head 100 can be made compact.

As shown in fig. 1, a surface cleaning machine according to an embodiment of the present invention includes: a body 200 and a surface cleaning head coupled to the body 200, which may be the surface cleaning head 100 of the above-described embodiment of the present invention.

The floor washing machine of the embodiment of the utility model comprises: a body 200 and a face cleaning head 100 connected to the body 200. Specifically, as shown in fig. 1, the body 200 includes a body 201, and a fresh water tank 202, a foul water tank 203, and a suction module 204 mounted on the body 201, a fresh water passage and a suction passage are provided in the body 201, an upper end of the fresh water passage is connected to the fresh water tank 202, and a lower end of the fresh water passage opens into the surface cleaning head to spray water toward at least one of the first and second rolling brushes 21 and 22 and the surface to be cleaned, for example, a lower end of the fresh water passage is connected to a water spray passage in the surface cleaning head. The lower end of the suction channel communicates with the main suction channel 11 of the face cleaning head, a waste tank 203 is provided on the suction channel, a suction assembly 204 for generating a negative pressure in the suction channel, the suction assembly 204 comprising, for example, a suction motor and a fan.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A face cleaning head, comprising: casing and round brush subassembly, the round brush subassembly includes first round brush and second round brush, the front portion of casing is equipped with first round brush room, the rear portion of casing is equipped with the second round brush room, first round brush is located in the first round brush room, the second round brush is located in the second round brush room, be equipped with the owner in the casing and inhale passageway, first runner and second runner, the owner inhales the lower extreme of passageway and constitutes main suction port, the first port of first runner with first round brush room intercommunication, the second port of first runner with main suction port intercommunication, the first port of second runner with second round brush room intercommunication, the second port of second runner with main suction port intercommunication, the owner inhales the passageway and follows downward direction orientation first round brush room extends aslope.

2. The surface cleaning head of claim 1 wherein, in a plane orthogonal to the axial directions of the first and second roller brushes, the angle between the axial direction of the main suction channel and the axial direction of the first flow channel is α 1, wherein 90 ° < α 1 ≦ 140 °.

3. The face cleaning head of claim 1, wherein the area of the second port of the first flow passage is greater than the area of the second port of the second flow passage.

4. The face cleaning head of claim 1, wherein the main suction opening has an area of S1, the second port of the first flow path has an area of S2, wherein 1. ltoreq.S 1/S2. ltoreq.8; and/or the area of the second port of the second flow passage is S3, wherein S1/S3 is more than or equal to 1 and less than or equal to 8.

5. The face cleaning head of claim 4, wherein 1 < S2/S3 ≦ 5.

6. The surface cleaning head of claim 1 wherein the arcuate face of the first roller brush opposite the first port of the first flow path has a central angle α 2, wherein 20 ° ≦ α 2 ≦ 50 °; and/or the central angle of the arc-shaped surface of the second rolling brush opposite to the first port of the second flow channel is alpha 3, wherein the alpha 3 is more than or equal to 20 degrees and less than or equal to 50 degrees.

7. The face cleaning head as claimed in claim 1 wherein the cross-sectional area of the first flow passage is constant or gradually decreases in a direction from the first port of the first flow passage towards the second port of the first flow passage;

and/or the cross-sectional area of the second flow passage gradually decreases in a direction from the first port of the second flow passage toward the second port of the second flow passage.

8. The face cleaning head as claimed in claim 7, wherein the lower wall surface of the first flow passage is a horizontal surface, and the upper wall surface of the first flow passage is a horizontal surface or is inclined downward in a direction from the first port of the first flow passage toward the second port of the first flow passage; and/or

The lower wall surface of the second flow passage is a horizontal surface or is inclined downwards from the first port of the second flow passage to the second port of the second flow passage, and the upper wall surface of the second flow passage is inclined downwards from the first port of the second flow passage to the second port of the second flow passage.

9. The surface cleaning head of claim 8, wherein the upper wall surface of the first flow passage is inclined downward in a direction from the first port of the first flow passage toward the second port of the first flow passage, wherein an inclination angle γ 2 of the upper wall surface of the second flow passage is larger than an inclination angle γ 1 of the upper wall surface of the first flow passage.

10. The surface cleaning head of claim 1 wherein the housing has a water spray passage therein having a water inlet and a water spray for spraying water toward at least one of the first roller brush, the second roller brush and the surface to be cleaned, a reservoir being provided in the housing between the second port of the first flow passage and the second port of the second flow passage, the projection of the main suction opening in a horizontal plane being located in the reservoir.

11. The face cleaning head as claimed in claim 10 wherein a first wiper blade and a second wiper blade are provided in the housing, the first wiper blade being adjacent an upper edge of the first port of the first flow passage and projecting into the first rolling brush chamber to abut the first rolling brush; the second wiper blade is adjacent to the upper edge of the first port of the second flow channel and extends into the second rolling brush chamber to be abutted against the second rolling brush, the water spray opening is formed in the wall surface of the first rolling brush chamber and is opposite to the first rolling brush, and the water spray opening is higher than the first wiper blade.

12. The face cleaning head of claim 1, wherein the width to height ratio of the second port of the first flow passage is 0.8-15 and/or the width to height ratio of the second port of the second flow passage is 0.8-15.

13. A surface cleaning machine, comprising: a body and a face cleaning head connected to the body, the face cleaning head being in accordance with any one of claims 1 to 12.

14. A floor washing machine comprising a machine body and a surface cleaning head connected to the machine body, the surface cleaning head being according to any one of claims 1 to 12, the machine body comprising a machine body and a clean water tank, a foul water tank and a suction module mounted on the machine body, a clean water channel and a suction channel being provided in the machine body, the upper end of the clean water channel being connected to the clean water tank, the lower end of the clean water channel leading to the surface cleaning head to spray water towards at least one of the first roller brush, the second roller brush and the surface to be cleaned, the lower end of the suction channel being in communication with the main suction channel of the surface cleaning head, the foul water container being provided on the suction channel, the suction module being adapted to generate a negative pressure in the suction channel.