Brush head for a washing machine and washing machine having the same

Abstract

The application discloses a brush head for a cleaning machine and a cleaning machine with the same. The brush head comprises a connector shell part and a main body shell part. Two ends of the connector shell part are a first end and a second end respectively. The first end is suitable for connecting a hose joint of the cleaning machine. The main body shell part is provided with a suction area, a liquid spraying area and a bristle area. The main body shell part has a first flow channel communicating with the suction area and a second flow channel communicating with the liquid spraying area. The main body shell part is formed into an elongated shape with a longitudinal length greater than a transverse width. A longitudinal end of the main body shell part is connected with the second end. The main body shell part comprises a brush head section provided with the suction area and the bristle area. The transverse width of the brush head section is less than the outer diameter of the connector shell part. According to the brush head for the cleaning machine, the cleaning application range of the cleaning machine can be improved.

Description

Technical Field

[0001] This invention relates to the field of cleaning appliance technology, and in particular to a brush head for a cleaning machine and a cleaning machine having the same. Background Technology

[0002] With the improvement of living standards, more and more small household appliances are entering people's lives. For example, cleaning machines are used to clean sofas, carpets, beds, and other surfaces, providing convenience. Cleaning machines are typically equipped with a clean water tank and a wastewater tank. They use a hose with a brush head to spray the cleaning solution from the clean water tank onto the area to be cleaned. The brush bristles rub against the stains, and the suction on the brush head draws the dissolved dirt into the wastewater tank, thus achieving the cleaning purpose. To broaden their applicability, some cleaning machines come with a wider brush head in addition to the standard size brush head; however, the applicability of these machines is still still limited. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention provides a brush head for a cleaning machine that can improve the cleaning applicability of the cleaning machine.

[0004] The present invention also proposes a cleaning machine having the above-described brush head.

[0005] According to a first aspect of the present invention, a brush head for a cleaning machine includes: a connecting shell portion, the two ends of which are a first end and a second end, the first end being adapted to connect to a hose connector of the cleaning machine; a main shell portion, the main shell portion having a suction area, a spray area and a bristle area, the main shell portion having a first flow channel communicating with the suction area and a second flow channel communicating with the spray area, the main shell portion being formed into a narrow and elongated shape with a longitudinal length L greater than a transverse width W, one longitudinal end of the main shell portion being connected to the second end, the main shell portion including a brush head segment having the suction area and the bristle area, the transverse width W2 of the brush head segment being less than the outer diameter D of the connecting shell portion.

[0006] According to an embodiment of the present invention, the brush head for a cleaning machine is designed to achieve a narrower and longer overall shape, which is beneficial for cleaning narrow spaces such as the inside and outside of shoes, the seams between two sofas, and the edges of beds, thereby expanding the cleaning range of the cleaning machine.

[0007] In some embodiments, the spray area and the suction area are located on both sides of the bristle area along the longitudinal direction of the main body shell, and the longitudinal dimension y of the bristle area is greater than the lateral dimension x of the bristle area.

[0008] In some embodiments, the lateral distance t between the bristle area and the lateral edge of the main body shell is less than or equal to 5 mm.

[0009] In some embodiments, the longitudinal dimension y of the bristle region is greater than half of the longitudinal length L2 of the brush head segment; and / or, the transverse dimension x of the bristle region is greater than half of the transverse width W2 of the brush head segment.

[0010] In some embodiments, the lateral width W2 of the brush head segment is fixed.

[0011] In some embodiments, the main body shell further includes a transition section connecting the brush head section and the connecting tube shell, wherein the lateral width W1 of the transition section is not greater than the outer diameter D of the connecting tube shell.

[0012] In some embodiments, the lateral width W1 of the transition section gradually decreases along the direction from the connector housing to the brush head section.

[0013] In some embodiments, the axial length of the transition section is R1, and the axial length of the brush head section is R2, where 0.5R1 < R2 < 0.7R1.

[0014] In some embodiments, the centerline of the brush head segment extends forward and upward at an angle relative to the centerline of the connector housing.

[0015] In some embodiments, the angle θ at which the centerline of the brush head segment is inclined forward and upward relative to the centerline of the connector housing is 10°-20°.

[0016] In some embodiments, the longitudinal length L2 of the brush head segment is less than 1 / 2 of the longitudinal length L of the main body shell.

[0017] In some embodiments, the spraying area is located at the rear end of the brush head segment, and the centerline of the spraying area extends forward and downward at an angle relative to the centerline of the connector housing.

[0018] In some embodiments, the bristle area is located at the bottom of the brush head segment, the suction area is located at the front end of the bristle area, and a transparent cover is provided at the top of the brush head segment, the transparent cover participating in defining the first flow channel.

[0019] In some embodiments, the lateral width of the brush head segment is W2, the outer diameter of the connecting pipe shell is D, and the brush head is a first brush head or a second brush head. The first brush head satisfies: 0.4D < W2 < 0.6D, and the second brush head satisfies: 0.6D < W2 < 0.8D.

[0020] In some embodiments, the outer diameter D of the connecting tube shell is 35mm-40mm, the longitudinal length of the main body shell is L, the first brush head further satisfies: W2 is 15mm-17mm, L is 205mm-215mm, and the second brush head further satisfies: W2 is 28mm-29mm, L is 190mm-200mm.

[0021] In some embodiments, the cross-section of the connecting pipe shell is used as the projection plane, and the orthographic projection of the main body shell on the projection plane does not exceed a set area on the projection plane. The set area is a circular area concentric with the orthographic projection area of ​​the connecting pipe shell on the projection plane and with a diameter 1.4 times the outer diameter of the connecting pipe shell.

[0022] In some embodiments, the orthographic projection of the main body shell portion onto the projection plane is entirely located within the orthographic projection area of ​​the connecting pipe shell portion onto the projection plane.

[0023] A cleaning machine according to a second aspect of the present invention includes: a cleaning machine body, the cleaning machine body including a suction system, a liquid supply system and a hose assembly, the hose assembly including a hose and a hose connector; and a cleaning head accessory, the cleaning head accessory including a brush head for a cleaning machine according to a first aspect of the present invention, wherein when the brush head is connected to the hose connector, the suction system is in communication with a first flow channel and the liquid supply system is in communication with a second flow channel.

[0024] According to the embodiments of the present invention, by providing the brush head of the first aspect embodiment described above, the cleaning machine can improve its cleaning applicability.

[0025] In some embodiments, the brush head is detachably connected to the hose connector, and the cleaning head accessory includes a plurality of different brush head accessories that can be replaced and installed on the hose connector, one of which is the brush head.

[0026] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] Figure 1 This is a perspective view of a brush head according to an embodiment of the present invention;

[0028] Figure 2 yes Figure 1 A three-dimensional view of the brush head from another angle;

[0029] Figure 3 yes Figure 1 A schematic diagram showing the connection between the brush head and the hose connector;

[0030] Figure 4 yes Figure 3 A schematic diagram showing another angle of the brush head connection to the hose connector;

[0031] Figure 5 yes Figure 1 A cross-sectional view of the brush head shown;

[0032] Figure 6 yes Figure 1 A top view of the brush head shown;

[0033] Figure 7 yes Figure 1 The side view of the brush head shown;

[0034] Figure 8 yes Figure 1 The top view of the brush head shown;

[0035] Figure 9 These are schematic diagrams illustrating two working states of a common brush head in related technologies;

[0036] Figure 10 yes Figure 9 The diagram shows two other working states of the universal brush head.

[0037] Figure 11 yes Figure 1 The diagram shows two working states of the brush head.

[0038] Figure 12 yes Figure 1 The front view of the brush head shown;

[0039] Figure 13 This is a perspective view of a brush head according to another embodiment of the present invention;

[0040] Figure 14 yes Figure 13 A three-dimensional view of the brush head from another angle;

[0041] Figure 15 yes Figure 13 The side view of the brush head shown;

[0042] Figure 16 yes Figure 13 A top view of the brush head shown;

[0043] Figure 17 yes Figure 13 The top view of the brush head shown;

[0044] Figure 18 yes Figure 13 The front view of the brush head shown;

[0045] Figure 19 yes Figure 13 A schematic diagram showing the connection between the brush head and the hose connector;

[0046] Figure 20 This is a front view of a cleaning machine according to an embodiment of the present invention.

[0047] Figure label:

[0048] 100 cleaning machines;

[0049] Brush head 10: First brush head 10A: Second brush head 10B:

[0050] Connector shell 1; First end 11; Second end 12;

[0051] Main body shell 2; Transition section 21; Brush head section 22;

[0052] 3. Suction area; 4. Spray area; 5. Brush area; 6. First flow channel; 7. Second flow channel; 8. Transparent cover;

[0053] Center line C1 of the brush head section; Center line C2 of the transition section;

[0054] Centerline of the spray area C3; Centerline of the nozzle shell C4;

[0055] Define the region S; orthographic projection region Z;

[0056] Cleaning machine body 101;

[0057] 20 hose connectors; 30 sewage tank; 40 clean water tank; 50 water outlet pipe; 60 accessory rack; 70 handles. Detailed Implementation

[0058] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0059] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. Additionally, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0060] Hereinafter, with reference to the accompanying drawings, a brush head 10 for a cleaning machine 100 according to a first aspect embodiment of the present invention will be described.

[0061] like Figure 1 and Figure 2 As shown, the brush head 10 includes: a connecting tube housing 1 and a main body housing 2. The two ends of the connecting tube housing 1 are a first end 11 and a second end 12, respectively. Figure 3 and Figure 4 The first end 11 is adapted to connect to the hose connector 20 of the cleaning machine 100. For example... Figure 2 and Figure 5 As shown, the main body shell 2 is provided with an intake area 3, a spray area 4 and a bristle area 5. The main body shell 2 has a first flow channel 6 communicating with the intake area 3 and a second flow channel 7 communicating with the spray area 4.

[0062] For example, when the cleaning machine 100 performs cleaning work, cleaning liquid (such as water or water mixed with cleaning agent) can be supplied to the spray area 4 through the second flow channel 7. The brush head 10 sprays the cleaning liquid from the spray area 4 onto the surface to be cleaned (such as sofa, carpet, bed surface, etc.). The brush head 10 is pushed to clean the dirty position by the friction of the bristles in the bristle area 5, so that dirty liquid is formed on the cleaning surface. The dirty liquid is sucked in by the suction area 3 and sent into the cleaning machine 100 along the first flow channel 6.

[0063] In embodiments of the present invention, such as Figures 6-8 As shown, the main body shell 2 is formed into a narrow and elongated shape with a longitudinal length L greater than its transverse width W. Specifically, the main body shell 2 is narrow and elongated, and its longitudinal length L is greater than its transverse width W. One longitudinal end of the main body shell 2 is connected to the second end 12. Here, "longitudinal" refers to the front-to-back direction when the brush head 10 is in normal use, and "transverse" refers to the left-to-right direction when the brush head 10 is in use. The longitudinal length L of the main body shell 2 refers to the maximum distance between its two longitudinal ends (i.e., the maximum distance from the front end to the rear end of the main body shell 2). The transverse width W of the main body shell 2 refers to the transverse width of each cross-section of the main body shell 2. When the main body shell 2 has a variable cross-section, its transverse width is not a fixed value.

[0064] like Figure 1 and Figure 2 As shown, the main body shell 2 includes a brush head section 22 with a suction area 3 and a bristle area 5. The lateral width W2 of the brush head section 22 is smaller than the outer diameter D of the connecting pipe shell 1. This indicates that the lateral width W2 of the part of the main body shell 2 with the suction area 3 and the bristle area 5 is narrower than the outer diameter D of the connecting pipe shell 1.

[0065] Therefore, according to the embodiment of the present invention, since the main body shell 2 is generally narrow and long, and the brush head section 22 of the main body shell 2 with the suction area 3 and the bristle area 5 is narrower than the outer diameter D of the connecting pipe shell 1, it is beneficial to clean areas with small accommodating space (such as the inside of shoes) and narrow gap areas (such as the splicing gap between two sofas, the edge of a bed, etc.), thus expanding the cleaning application range of the cleaning machine 100.

[0066] The applicant discovered that the brush heads included with cleaning machines in the related technology are either standard brush heads or widened brush heads. The outer diameter of the connector port of these brush heads is typically 38mm, while the lateral width of the brush head is over 80mm, exceeding the outer diameter of the connector port. Such brush heads are advantageous for cleaning large areas and improving cleaning efficiency. However, for areas with limited space or narrow crevices, such as the inside of shoes, the seams between two sofas, or the edges of beds, the brush heads have difficulty reaching in for cleaning. Therefore, this application provides a narrow and elongated brush head 10, which can effectively clean areas with limited space and narrow crevices, thus broadening the applicability of the cleaning machine 100.

[0067] In some embodiments of the present invention, such as Figure 7 and Figure 8 As shown, the spraying area 4 and the suction area 3 are located on both sides of the bristle area 5 along the longitudinal direction of the main body shell 2. That is, the spraying area 4 and the suction area 3 are respectively provided on both sides of the longitudinal direction of the bristle area 5. This can be interpreted broadly, meaning that as long as the overall arrangement is as described above, it is acceptable. For example, in Figure 8 In the example shown, the spray area 4, the bristle area 5, and the suction area 3 are arranged sequentially along the longitudinal direction of the main body shell 2, away from the connecting pipe shell 1 (or arranged sequentially from back to front). In another example, the suction area 3, the bristle area 5, and the spray area 4 are arranged sequentially along the longitudinal direction of the main body shell 2, away from the connecting pipe shell 1 (i.e., the positions of the spray area 4 and the suction area 3 are interchanged compared to the previous example; this example is not shown in the figure). Therefore, the spray area 4 and the suction area 3 do not occupy the lateral space on both sides of the bristle area 5, increasing the lateral dimension x of the bristle area 5 on the narrow and elongated main body shell 2, and increasing the lateral cleanable range.

[0068] Optionally, such as Figure 7 and Figure 8 As shown, the longitudinal dimension y of the bristle area 5 is greater than the transverse dimension x of the bristle area 5. Therefore, the bristle area 5 has a larger cleaning range in the longitudinal direction, which is beneficial for cleaning narrow crevices. The bristle area 5 comprises multiple bristles, and the longitudinal dimension y of the bristle area 5 can be the longitudinal distance between the two bristles furthest apart in the longitudinal direction, while the transverse dimension x of the bristle area 5 can be the transverse distance between the two bristles furthest apart in the transverse direction.

[0069] In related technologies, cleaning machines are equipped with a standard-sized brush head and an additional widened brush head to increase the cleaning area and improve cleaning efficiency. However, the applicant found that neither the standard-sized brush head nor the widened brush head is very efficient at cleaning narrow crevices. To address this problem, the applicant researched and creatively discovered, such as... Figure 10 As shown, for a typical brush head, the suction area A, bristle area B, and spray area C are usually arranged sequentially from front to back along the longitudinal direction of the brush head, and the length of these areas generally extends along the transverse direction of the brush head. When cleaning narrow crevices, such as... Figure 9 As shown in (a), if the brush head is pushed back and forth along its longitudinal direction parallel to the length of the slit, the suction area A, the bristle area B, and the spray area C all only have a small area acting on the slit area, resulting in low cleaning efficiency; Figure 9 As shown in (b), if the brush head is parallel to the length of the slit, the suction area A, the bristle area B, and the spray area C cannot work together in the slit area when the brush head is pushed back and forth, whether in the horizontal or vertical direction, resulting in low cleaning efficiency.

[0070] In response, the applicant creatively conceived of modifying the brush head 10 into a narrow, elongated shape, arranging the suction area 3, bristle area 5, and spray area 4 along the length of the brush head 10. Simultaneously, the bristle area 5 is designed with a longitudinal dimension greater than its transverse dimension to increase the washable range of the bristle area 5 in the longitudinal direction, i.e., the direction of movement of the brush head 10. This way, when cleaning narrow crevices, such as... Figure 8 and Figure 11 As shown in (a), the suction area 3, the brush area 5, and the spray area 4 can effectively work together along the length of the narrow gap, and increase the area of ​​the brush area 5 that acts on the narrow gap, thereby effectively improving the cleaning efficiency of the narrow gap.

[0071] It should be noted that the relative positions of the spray area 4, the bristle area 5, and the suction area 3 are not limited to being arranged sequentially along the longitudinal direction of the main body shell 2 in a direction away from the connector shell 1. For example, the spray area 4 can be located in front of the bristle area 5, and the suction area 3 can be located behind the bristle area 5, etc., which will not be elaborated here.

[0072] Furthermore, such as Figure 8As shown, the lateral distance t between the bristle area 5 and the lateral edge of the main body shell 2 is less than or equal to 5 mm. Therefore, the lateral distance t between the root of the bristle closest to the lateral edge of the main body shell 2 in the bristle area 5 and the lateral edge of the main body shell 2 can be less than or equal to 5 mm, for example, it can be 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, etc. This can effectively ensure that the bristles are set closer to the lateral edge of the main body shell 2, thereby further improving the cleaning effect on narrow gap areas.

[0073] However, it should be noted that the position of the free end of the bristles (i.e. the end that contacts the cleaning surface) depends on the installation angle of the bristles. For example, the bristles can be set perpendicular to the mounting surface of the brush head 10 (e.g., the bottom surface of the brush head section 22). In this case, the orthographic projection of the free end of the bristles in the bristle area 5 can coincide with the orthographic projection of the root end of the bristles. Alternatively, the bristles can be set at an angle to the normal direction of the mounting surface of the brush head 10 (e.g., the bottom surface of the brush head section 22). In this case, the orthographic projection of the free end of the bristles on the mounting surface of the brush head 10 (e.g., the bottom surface of the brush head section 22) can extend beyond the lateral edge of the main body shell 2. This will not be elaborated here.

[0074] For example Figure 10 As shown in (a), if the narrow gap is defined by an obstacle (such as a wall), when the brush head is pushed back and forth along its longitudinal direction parallel to the length of the gap, the area covered by the brush head in the gap is smaller, resulting in a less ideal cleaning effect; if Figure 10 As shown in (b), if the brush head is moved horizontally parallel to the length of the slit, the bristle area B and the spray area C may not be able to reach the slit at all when the brush head is pushed back and forth, whether horizontally or vertically. Therefore, the slit is even more difficult to clean.

[0075] However, according to the embodiment of the present invention, the brush head 10, since the main body shell 2 is formed into a narrow and elongated shape with a longitudinal length greater than its transverse width, and the longitudinal dimension y of the bristle region 5 is greater than the transverse dimension x of the bristle region 5, and the transverse distance t between the bristle region 5 and the transverse edge of the main body shell 2 is less than or equal to 5 mm, thus... Figure 11 As shown in (b), for narrow gap areas defined by obstacles (such as walls), the brush bristles can reach as far into the gap area as possible, improving the cleaning effect of the gap area.

[0076] In some embodiments of the present invention, when the main body shell 2 includes a brush head section 22, the lateral width of the brush head section 22 is smaller than the outer diameter of the connecting pipe shell 1, and the bristle region 5 is disposed on the brush head section 22, such as Figure 8As shown, the longitudinal dimension y of the bristle area 5 is greater than half the longitudinal length L2 of the brush head section 22, and the transverse dimension x of the bristle area 5 is greater than half the transverse width W2 of the brush head section 22. This allows for a larger bristle area 5, effectively improving the cleaning effect.

[0077] The longitudinal length L2 of the brush head segment 22 refers to the maximum distance between the two ends of the brush head segment 22 (i.e., the maximum distance from the front end to the rear end). The transverse width W2 of the brush head segment 22 refers to the transverse width of each cross section of the brush head segment 22. When the brush head segment 22 has a constant cross section, the transverse width of the brush head segment 22 is a fixed value, while when the brush head segment 22 has a variable cross section, the transverse width of the brush head segment 22 is not a fixed value.

[0078] Of course, the present invention is not limited to this. In other embodiments of the present invention, the longitudinal dimension y of the bristle area 5 may be less than or equal to half of the longitudinal length L2 of the brush head section 22, but the transverse dimension x of the bristle area 5 may be greater than half of the transverse width W2 of the brush head section 22, thereby increasing the cleaning range in the transverse direction. Alternatively, the longitudinal dimension y of the bristle area 5 may be greater than half of the longitudinal length L2 of the brush head section 22, but the transverse dimension x of the bristle area 5 may be less than or equal to half of the transverse width W2 of the brush head section 22, thereby increasing the cleaning range in the longitudinal direction, and so on. These will not be elaborated here.

[0079] Optionally, such as Figure 3 and Figure 4 As shown, the lateral width W2 of the brush head segment 22 is fixed. That is, along the longitudinal extension direction of the brush head segment 22, the lateral width W2 of the brush head segment 22 remains unchanged and is a fixed value. This reduces the processing difficulty of the brush head segment 22 and provides sufficient space for setting the bristle area 5, thereby improving the cleaning effect. However, the present invention is not limited to this. In other embodiments of the present invention, the lateral width W2 of the brush head segment 22 can be set to gradually decrease along the direction away from the connecting tube housing 1, which is beneficial for extending into narrower spaces for cleaning.

[0080] Furthermore, it is worth noting that the phrase "the lateral width W2 of the brush head segment 22 is fixed" in the above embodiment should be interpreted broadly. For example, when the brush head segment 22 is the front section of the main body shell 2, the width at the end face of the front end of the brush head segment 22 is not considered as the lateral width W2 of the brush head segment 22. The shape of this end can be designed according to the specific design requirements, such as a forward-protruding arc or a sharp corner, etc., which is not limited here.

[0081] In some embodiments of the present invention, such as Figure 1As shown, the main body shell 2 also includes a transition section 21 connecting the brush head section 22 and the connecting tube shell 1. That is, along the longitudinal direction of the main body shell 2, the transition section 21 and the brush head section 22 are sequentially arranged in a direction away from the connecting tube shell 1. Figure 2 and Figure 3 The lateral width W1 of the transition section 21 is no greater than the outer diameter D of the connecting tube shell 1. Therefore, the main body shell 2 can be formed into a shape that is narrower and longer than the outer diameter of the connecting tube shell 1, which is more conducive to cleaning narrow crevices and to reaching into smaller spaces, such as the inside of shoes. The lateral width W1 of the transition section 21 refers to the lateral width of each cross-section of the transition section 21. When the transition section 21 has a variable cross-section, the lateral width of the brush head section 22 is not a fixed value.

[0082] In some embodiments, the main body shell 2 may consist only of a transition section 21 and a brush head section 22, with the brush head section 22 being the front section of the main body shell 2 and the transition section 21 being the rear section of the main body shell 2. However, the present invention is not limited thereto. For example, in other embodiments, the main body shell 2 may not include the transition section 21, but only the brush head section 22. Alternatively, in other embodiments, the main body shell 2 may further include other sections in addition to the transition section 21 and the brush head section 22. For example, other sections may be disposed between the transition section 21 and the brush head section 22, or at the rear end of the transition section 21, or at the front end of the brush head section 22, etc., which will not be elaborated here.

[0083] Furthermore, it should be noted that the connection relationship between the brush head section 22 and the transition section 21 is not limited. For example, they can be separate parts that are assembled together, or at least part of them can be a single piece. For example, the main body shell 2 includes a first shell and a second shell. The front part of the first shell is a portion of the brush head section 22, and the rear part of the first shell is a portion of the transition section 21. At the same time, the front part of the second shell is a portion of the brush head section 22, and the rear part of the second shell is a portion of the transition section 21. The second shell and the first shell are spliced ​​together in the left-right direction or the up-down direction to obtain at least part of the brush head section 22 and the transition section 21.

[0084] Optionally, such as Figure 3As shown, the lateral width W1 of the transition section 21 gradually decreases along the direction from the connector shell 1 to the brush head section 22, thus simplifying the structure and facilitating manufacturing. Furthermore, since the lateral width W2 of the brush head section 22 is smaller than the outer diameter D of the connector shell 1, when the lateral width W1 of the transition section 21 is set to gradually decrease along the direction from the connector shell 1 to the brush head section 22, in some examples, a smooth transition connection can be easily and effectively achieved between the outer surface of the transition section 21 and the outer surfaces of the connector shell 1 and the brush head section 22, respectively. This avoids abrupt changes in cross-section at the connection between the outer surface of the transition section 21 and the outer surface of the connector shell 1, and also avoids abrupt changes in cross-section at the connection between the outer surface of the transition section 21 and the outer surface of the brush head section 22. This results in a smooth overall outer surface of the brush head 10, providing a good hand feel and preventing problems such as dust accumulation caused by steps formed by abrupt changes in cross-section.

[0085] Of course, the present invention is not limited to this. In other embodiments of the present invention, the lateral width W1 of the transition section 21 can also be set to other shapes such as gradually decreasing and then gradually increasing along the direction from the connector shell 1 to the brush head section 22, so as to achieve a smooth transition connection between the outer surface of the transition section 21 and the outer surface of the connector shell 1 and the outer surface of the brush head section 22, respectively. This will not be elaborated here.

[0086] Furthermore, in other embodiments of the present invention, the lateral width W1 of the transition section 21 can be set to be greater than the outer diameter D of the pipe housing 1 as needed. For example, the middle part of the transition section 21 has several protruding sections, and the lateral width of the protruding sections is greater than the outer diameter D of the pipe housing 1, thereby meeting other design requirements.

[0087] like Figure 3 and Figure 6 As shown, when the lateral width W1 of the transition section 21 gradually decreases along the direction from the connector housing 1 to the brush head section 22, the axial length of the transition section 21 is R1, and the axial length of the brush head section 22 is R2, where 0.5R1 < R2 < 0.7R1. For example, R2 can be 0.51R1, 0.55R1, 0.58R1, 0.6R1, 0.62R1, 0.64R1, 0.68R1, etc. Therefore, the length of the brush head section 22 is neither too long nor too short, ensuring effective cleaning of narrow crevices. Here, the axial length refers to the axial section parallel to the lateral direction of the connector housing 1 (e.g., ...). Figure 6 The length is measured on the projection plane shown in the figure. In this embodiment, the width W2 of the brush head segment 22 can be a fixed value or it can be variable.

[0088] In some embodiments of the present invention, such as Figure 5As shown, the spray area 4 is located at the connection between the transition section 21 and the brush head section 22. This shortens the distance between the spray area 4 and the bristle area 5, resulting in a smaller spray path, reduced spray resistance and energy consumption, and more concentrated spraying onto the area that needs cleaning.

[0089] In some embodiments of the present invention, such as Figure 5 As shown, the center line C1 of the brush head section 22 extends forward and upward at an angle relative to the center line C4 of the connecting tube housing 1 (when the center line C4 of the connecting tube housing 1 is set horizontally). This allows the main body housing 2 to more easily reach into narrow crevices such as inside shoes, improving the cleaning effect on these areas. Furthermore, when the brush head section 22 is parallel to the cleaning surface, the transition section 21 can be raised for easier gripping and use.

[0090] Furthermore, when the center line C1 of the brush head section 22 extends forward and upward at an angle relative to the center line C4 of the connecting tube housing 1, the spray area 4 can be located behind the bristle area 5, and the center line C3 of the spray area 4 is set to extend forward and downward at an angle relative to the center line C4 of the connecting tube housing 1 (when the center line C4 of the connecting tube housing 1 is set horizontally). This can effectively ensure that the spray can be sprayed directly downward towards the bristle area 5, thereby improving the cleaning effect.

[0091] Optionally, the angle θ at which the center line C1 of the brush head section 22 is tilted forward and upward relative to the center line C4 of the connecting shell 1 is 10°-20°, for example, 10°, 12°, 14°, 16°, 18°, 20°, etc. This avoids the brush head section 22 being tilted too much, allowing the main shell 2 to more easily reach into narrow gaps such as inside shoes, improving the cleaning effect on these areas. Moreover, this design makes it easier for the user to hold, avoiding the discomfort of excessive wrist bending.

[0092] Of course, the present invention is not limited thereto. In other embodiments of the present invention, the center line C1 of the brush head section 22 may be parallel or coincident with the center line C4 of the connecting tube shell 1, without any tilting angle, thereby simplifying the structure.

[0093] In some embodiments of the present invention, such as Figure 7 As shown, when the center line C1 of the brush head segment 22 extends forward and upward at an angle relative to the center line C4 of the connecting tube shell 1, the longitudinal length L2 of the brush head segment 22 is less than half of the longitudinal length L of the main body shell 2. This indicates that the length of the inclined brush head segment 22 is not too long, which is beneficial for inserting it into the shoe along the fold line, increasing the insertion depth, and cleaning the front end of the shoe interior.

[0094] Optionally, such as Figure 5As shown, when the main body shell 2 includes the transition section 21, the center line C1 of the brush head section 22 can extend forward and upward at an angle relative to the center line C2 of the transition section 21. This facilitates insertion into the shoe along the fold line, increasing the insertion depth and cleaning the front end of the shoe interior. Alternatively, the center line C1 of the brush head section 22 can be parallel or coincide with the center line C2 of the transition section 21, etc., thereby reducing the processing difficulty.

[0095] Optionally, such as Figure 5 As shown, when the main body shell 2 includes the transition section 21, the center line C2 of the transition section 21 and the center line C4 of the connecting pipe shell 1 can coincide, be parallel, or intersect at an angle. When they coincide, are parallel, or intersect at a small angle, it is easier to process and allows the main body shell 2 to easily reach into narrow gaps such as inside shoes, improving the cleaning effect on these areas. Moreover, this design makes it easier for users to hold and avoids the discomfort of excessive wrist bending angle.

[0096] Furthermore, referring to Figure 7 When the main body shell 2 includes the transition section 21, the longitudinal length L2 of the brush head section 22 and the longitudinal length L1 of the transition section 21 can satisfy the relationship: 0.3L1 < L2 < 0.7L1. For example, L2 can be 0.32L1, 0.4L1, 0.5L1, 0.6L1, 0.68L1, etc. This ensures that the length of the brush head section 22 is neither too long nor too short, which is beneficial for cleaning inside the shoe and in narrow crevices, and provides high cleaning efficiency. The longitudinal length L1 of the transition section 21 refers to the maximum distance between the two ends of the transition section 21 (i.e., the maximum distance from the front end to the rear end).

[0097] In some embodiments of the present invention, such as Figure 5 As shown, the spray area 4 is located at the rear end of the brush head section 22, and the center line C3 of the spray area 4 extends forward and downward at an angle relative to the center line C4 of the connecting tube housing 1. This allows the cleaning fluid to be sprayed more concentratedly onto the area below the bristle area 5 that needs cleaning.

[0098] In some embodiments of the present invention, such as Figure 5 As shown, the spray area 4 is located at the connection between the transition section 21 and the brush head section 22, and the center line C3 of the spray area 4 extends forward and downward at an angle relative to the center line C4 of the connector housing 1 (when the center line C4 of the connector housing 1 is set horizontally). As a result, the cleaning fluid can be sprayed more concentratedly onto the area that needs to be cleaned.

[0099] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the bristle area 5 can be located at the bottom of the brush head section 22, the suction area 3 is located at the front end of the bristle area 5, and the top of the brush head section 22 is provided with a transparent cover 8, combined with... Figure 5 The transparent cover 8 helps to define the first flow channel 6. This simplifies the structure and flow channel. The dirty liquid sucked in from the suction area 3 can enter the first flow channel 6 and pass through the inside of the transparent cover 8, which can be observed by the user, allowing the user to have a more intuitive understanding of the cleaning effect.

[0100] Optionally, the transparent cover 8 can be made removable, making it easy for users to remove the transparent cover 8 for cleaning.

[0101] Optionally, a portion of the main body shell 2 and a portion of the connecting pipe shell 1 can be integrally formed to improve connection reliability. However, this is not a limitation; the main body shell 2 and the connecting pipe shell 1 can also be configured as separate parts and assembled together, etc.

[0102] In some embodiments of the present invention, such as Figure 12 As shown, in a projection plane perpendicular to the centerline C4 of the connecting tube shell 1, or in other words, with the cross-section of the connecting tube shell 1 as the projection plane, the orthographic projection of the main body shell 2 on the projection plane does not exceed a predetermined area S on the projection plane. The predetermined area S is a circular area concentric with the orthographic projection area Z of the connecting tube shell 1 on the projection plane, and its diameter is 1.4 times the outer diameter of the connecting tube shell 1. This allows the main body shell 2 to more easily reach into narrow gaps such as inside shoes, improving the cleaning effect in these areas.

[0103] For example, the orthographic projection of the main body shell 2 onto the projection plane lies entirely within the orthographic projection region Z of the connecting pipe shell 1 (e.g. Figure 18 (as shown); for example, the orthographic projection of the main body shell 2 onto the projection plane can also be partly located within the orthographic projection area Z of the connecting pipe shell 1 on the projection plane, and the remaining part located within the annular area between the orthographic projection area Z of the connecting pipe shell 1 and the set area S (e.g. Figure 12 (As shown).

[0104] The brush head 10 according to two specific embodiments of the present invention will now be described.

[0105] Example 1

[0106] like Figures 13-19 As shown, brush head 10 is the first brush head 10A. The lateral width of brush head segment 22 is W2, and the outer diameter of the connecting shell portion 1 is D, where 0.4D < W2 < 0.6D. For example, W2 can be 0.41D, 0.45D, 0.48D, 0.51D, 0.55D, 0.58D, etc. Therefore, the brush head segment 22 is relatively narrow, allowing for more effective cleaning of narrower areas, such as the gaps at the edges of insoles inside shoes.

[0107] Additionally, for the narrower first brush head 10A, in some embodiments, such as Figure 17As shown, the suction area 3 can be completely positioned at the front end of the bristle area 5, thereby ensuring that the size of the bristle area 5 is sufficient.

[0108] like Figure 15 As shown, the longitudinal length of the transition section 21 is L1, and the longitudinal length of the brush head section 22 is L2. The first brush head 10A can further satisfy: 0.35L1 < L2 < 0.45L1. For example, L2 can be 0.36L1, 0.38L1, 0.4L1, 0.42L1, 0.44L1, etc. Therefore, the narrower brush head section 22 has a relatively shorter length, ensuring reliable structural strength and preventing deformation.

[0109] like Figure 15 As shown, the outer diameter D of the connector shell 1 is 35mm-40mm, for example, 35mm, 36mm, 37mm, 38mm, 39mm, 40mm, etc.; W2 is 15mm-17mm, for example, 15mm, 16mm, 17mm, etc.; and L is 205mm-215mm, for example, 205mm, 208mm, 210mm, 212mm, 214mm, 215mm, etc. Therefore, the shape of the first brush head 10A is more conducive to cleaning narrower crevices, such as the gaps at the edges of insoles inside shoes. For example, in some specific examples, the first brush head 10A can be used for cleaning narrow fabric areas with a horizontal width greater than or equal to 16mm and a vertical depth greater than or equal to 209mm, as well as for cleaning the inner and outer areas of shoes.

[0110] like Figure 18 As shown, in a projection plane perpendicular to the center line C4 of the connector shell 1, or in other words, with the cross-section of the connector shell 1 as the projection plane, the orthographic projection of the main body shell 2 of the first brush head 10A is completely located within the orthographic projection area Z of the connector shell 1. Therefore, the shape of the first brush head 10A is more advantageous for cleaning narrower crevices, such as the gaps at the edges of insoles inside shoes.

[0111] Example 2

[0112] like Figures 1-8 As shown, brush head 10 is the second brush head 10B. The lateral width of brush head segment 22 is W2, and the outer diameter of the connecting shell portion 1 is D. The second brush head 10B satisfies the condition: 0.6D < W2 < 0.8D. For example, W2 can be 0.61D, 0.65D, 0.68D, 0.71D, 0.75D, 0.78D, etc. Therefore, the brush head segment 22 is slightly narrower, which can more effectively clean larger areas, such as insoles inside shoes.

[0113] Additionally, for the slightly narrower second brush head 10B, in some embodiments, such as Figure 2As shown, the suction area 3 can be set to surround the front end of the bristle area 5, such as a semi-circular arc, to ensure that the size of the suction area 3 is sufficient.

[0114] like Figure 7 As shown, the longitudinal length of the transition section 21 is L1, and the longitudinal length of the brush head section 22 is L2. The second brush head 10B further satisfies the condition: 0.55L1 < L2 < 0.7L1. For example, L2 can be 0.56L1, 0.58L1, 0.6L1, 0.62L1, 0.64L1, 0.68L1, etc. Therefore, the slightly narrower brush head section 22 has a relatively longer length, increasing the cleaning range.

[0115] like Figure 8 As shown, the outer diameter D of the connector shell 1 is 35mm-40mm, for example, 35mm, 36mm, 37mm, 38mm, 39mm, 40mm, etc.; W2 is 28mm-29mm, for example, 28mm, 28.5mm, 29mm, etc.; and L is 190mm-200mm, for example, 190mm, 192mm, 194mm, 196mm, 198mm, 200mm, etc. Therefore, the shape of the second brush head 10B is more conducive to cleaning narrower crevices, such as insoles inside shoes. For example, in some specific examples, the second brush head 10B can be used for cleaning narrow fabric crevices with a horizontal width greater than or equal to 28.5mm and a vertical depth greater than or equal to 196mm, as well as for cleaning the inner and outer areas of shoes.

[0116] like Figure 12 As shown, in a projection plane perpendicular to the center line C4 of the connector housing 1, or in other words, with the cross-section of the connector housing 1 as the projection plane, the orthographic projection of the main body housing 2 of the second brush head 10B onto the projection plane does not exceed a set area S on the projection plane. The set area S is a circular area concentric with the orthographic projection area Z of the connector housing 1, and its diameter is 1.4 times the outer diameter of the connector housing 1. Therefore, the shape of the second brush head 10B is advantageous for cleaning small spaces such as inside shoes.

[0117] Below, refer to Figure 20 The following describes a cleaning machine 100 according to a second aspect embodiment of the present invention.

[0118] like Figure 20 As shown, the cleaning machine 100 includes a cleaning machine body 101 and a cleaning head accessory. The cleaning machine body 101 includes a suction system, a liquid supply system, and a hose assembly. The hose assembly includes a hose and a hose connector 20. The cleaning head accessory includes a brush head 10 for the cleaning machine 100 according to the first aspect embodiment of the present invention. When the connecting pipe housing 1 of the brush head 10 is connected to the hose connector 20, the suction system is connected to the first flow channel 6, and the liquid supply system is connected to the second flow channel 7.

[0119] Therefore, when the cleaning machine 100 performs cleaning work, the liquid supply system can supply cleaning liquid (such as water or water mixed with cleaning agent) to the spray area 4 through the second flow channel 7. The brush head 10 sprays the cleaning liquid from the spray area 4 onto the surface to be cleaned (such as sofa, carpet, bed surface, etc.). The brush head 10 is pushed to rub and clean the dirty position through the bristle area 5 so that dirty liquid is formed on the cleaning surface. The suction system sucks in the dirty liquid formed on the cleaning surface through the first flow channel 6 and the suction area 3.

[0120] Therefore, by providing a brush head 10 for the cleaning machine 100 according to the first aspect embodiment of the present invention, it is beneficial for the cleaning machine 100 to clean the inside of shoes and narrow seam areas, thereby improving the cleaning applicability range.

[0121] It is worth noting that the specific configuration of the suction system and the liquid supply system is not limited. For example, in some embodiments, the liquid supply system may include a clean water tank 40, a water pump, and a water outlet pipe 50. The water outlet pipe 50 is connected to a flexible hose (not shown in the figure). The water pump delivers the cleaning liquid in the clean water tank 40 to the water outlet pipe 50, and then supplies it to the second flow channel 7 along the flexible hose. The suction system may include a wastewater tank 30 and a blower. When the blower is working, it draws the liquid in the first flow channel 6 into the wastewater tank 30 and generates negative pressure suction in the suction area 3 to draw in the dirty liquid formed on the cleaning surface.

[0122] Furthermore, the cleaning machine 100 according to embodiments of the present invention may also have other configurations, such as an accessory rack 60 for holding a hose, a handle 70 for lifting, a cord reel for retrieving the wire, etc., on the cleaning machine body 101. This optimizes the ease of use of the cleaning machine 100.

[0123] In some embodiments, the brush head 10 is detachably connected to the hose connector 20, thereby facilitating replacement and cleaning.

[0124] Furthermore, the cleaning head accessory includes multiple different brush head accessories that can be interchangeably mounted on the hose connector 20, one of which is a brush head 10. That is, the cleaning head accessory can include multiple brush head accessories that can be interchangeably mounted on the hose connector 20, wherein at least one brush head accessory is a brush head 10 according to the first aspect embodiment of the present invention, thereby facilitating cleaning of narrow crevices. In some embodiments, the brush head accessory may also be a standard brush head or a widened brush head with a lateral width greater than that of the connecting tube housing 1, etc., which will not be elaborated here.

[0125] Furthermore, it should be noted that the cleaning machine 100 according to the embodiments of the present invention is not limited to any particular cleaning scenario or material. It can be used for sofas, blankets, carpets, tablecloths, clothing, shoes, hats, fabrics, leather, etc., which will not be elaborated here.

[0126] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0127] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. In this invention, unless otherwise explicitly specified and limited, "on" or "below" a second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium.

[0128] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0129] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A brush head for a cleaning machine, characterized in that, The brush head includes: The connector housing has a first end and a second end at its two ends, the first end of which is adapted to connect to the hose connector of the cleaning machine. The main body shell has an intake area, a spray area and a bristle area. The main body shell has a first flow channel communicating with the intake area and a second flow channel communicating with the spray area. The main body shell is formed into a narrow and long shape with a longitudinal length L greater than a transverse width W. One longitudinal end of the main body shell is connected to the second end. The main body shell includes a brush head section in which the intake area and the bristle area are disposed. The transverse width W2 of the brush head section is smaller than the outer diameter D of the connecting pipe shell. The centerline of the brush head section extends forward and upward at an angle relative to the centerline of the connector shell. The spraying area is located at the rear end of the brush head section, and the center line of the spraying area extends forward and downward at an angle relative to the center line of the connecting pipe shell.

2. The brush head for a cleaning machine according to claim 1, characterized in that, The spray area and the suction area are located on both sides of the bristle area along the longitudinal direction of the main body shell, and the longitudinal dimension y of the bristle area is greater than the transverse dimension x of the bristle area.

3. The brush head for a cleaning machine according to claim 2, characterized in that, The lateral distance t between the bristle area and the lateral edge of the main body shell is less than or equal to 5 mm.

4. The brush head for a cleaning machine according to claim 2, characterized in that, The longitudinal dimension y of the bristle area is greater than half of the longitudinal length L2 of the brush head segment; and / or, the transverse dimension x of the bristle area is greater than half of the transverse width W2 of the brush head segment.

5. The brush head for a cleaning machine according to claim 1, characterized in that, The lateral width W2 of the brush head segment is fixed.

6. The brush head for a cleaning machine according to claim 1, characterized in that, The main body shell also includes a transition section connecting the brush head section and the connecting tube shell, wherein the lateral width W1 of the transition section is not greater than the outer diameter D of the connecting tube shell.

7. The brush head for a cleaning machine according to claim 6, characterized in that, The lateral width W1 of the transition section gradually decreases along the direction from the connector shell to the brush head section.

8. The brush head for a cleaning machine according to claim 7, characterized in that, The axial length of the transition section is R1, and the axial length of the brush head section is R2, where 0.5R1 < R2 < 0.7R1.

9. The brush head for a cleaning machine according to claim 1, characterized in that, The angle θ at which the centerline of the brush head section is inclined forward and upward relative to the centerline of the connector shell is 10°-20°.

10. The brush head for a cleaning machine according to claim 1, characterized in that, The longitudinal length of the brush head segment is L2, which is less than 1 / 2 of the longitudinal length L of the main body shell.

11. The brush head for a cleaning machine according to claim 1, characterized in that, The bristle area is located at the bottom of the brush head section, the suction area is located at the front end of the bristle area, and a transparent cover is provided at the top of the brush head section, the transparent cover participating in defining the first flow channel.

12. The brush head for a cleaning machine according to claim 1, characterized in that, The lateral width of the brush head section is W2, the outer diameter of the connecting pipe shell is D, and the brush head is either a first brush head or a second brush head. The first brush head satisfies: 0.4D < W2 < 0.6D, and the second brush head satisfies: 0.6D < W2 < 0.8D.

13. The brush head for a cleaning machine according to claim 12, characterized in that, The outer diameter D of the connecting tube shell is 35mm-40mm, the longitudinal length of the main body shell is L, the first brush head further satisfies: W2 is 15mm-17mm, L is 205mm-215mm, and the second brush head further satisfies: W2 is 28mm-29mm, L is 190mm-200mm.

14. The brush head for a cleaning machine according to any one of claims 1-13, characterized in that, Using the cross-section of the connecting pipe shell as the projection plane, the orthographic projection of the main body shell on the projection plane does not exceed a set area on the projection plane. The set area is a circular area concentric with the orthographic projection area of ​​the connecting pipe shell on the projection plane and with a diameter 1.4 times the outer diameter of the connecting pipe shell.

15. The brush head for a cleaning machine according to claim 14, characterized in that, The orthographic projection of the main body shell on the projection plane is completely located within the orthographic projection area of ​​the connecting pipe shell on the projection plane.

16. A cleaning machine, characterized in that, include: The cleaning machine body includes a suction system, a liquid supply system, and a hose assembly, wherein the hose assembly includes a hose and a hose connector. A cleaning head accessory, comprising a brush head for a cleaning machine according to any one of claims 1-15, wherein when the brush head is connected to the hose connector, the suction system is in communication with the first flow channel and the liquid supply system is in communication with the second flow channel.

17. The cleaning machine according to claim 16, characterized in that, The brush head is detachably connected to the hose connector, and the cleaning head accessory includes multiple different brush head accessories that can be replaced and installed on the hose connector, one of which is the brush head.

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