Roller brush and cleaning apparatus with same

Abstract

A roller brush and a cleaning apparatus with same. The roller brush comprises a brush roller and at least two brush strips, wherein the at least two brush strips comprise a first brush strip and a second brush strip which are respectively arranged on an outer periphery of the brush roller, the distance between an outer end of the first brush strip in a radial direction of the brush roller and a central axis of the brush roller is defined as x1, and the distance between an outer end of the second brush strip in the radial direction of the brush roller and the central axis of the brush roller is defined as x2, where x1 < x2.

Description

Roller brush and cleaning device having the same

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202420042770.1 and application date of January 8, 2024, and claims the priority of the above-mentioned Chinese patent application. The entire content of the above-mentioned Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the technical field of cleaning appliances, and in particular to a roller brush and a cleaning device having the same. Background Art

[0004] Cleaning equipment is commonly used to clean objects, such as carpet cleaners. In the related art, cleaning appliances offer significant advantages in cleaning small household items, such as carpet stains, due to their flexible and convenient operation. However, some cleaning appliances use roller brushes with tufted nylon filaments as bristles. When cleaning carpets, especially long-pile carpets, the roller brushes can damage the carpet hair, causing numerous user problems.

[0005] Summary of the Invention

[0006] The present application aims to solve at least one of the technical problems in the prior art. To this end, the present application proposes a roller brush that can improve the cleaning effect.

[0007] The present application also proposes a cleaning device with a roller brush.

[0008] The roller brush according to the embodiment of the first aspect of the present application includes: a brush roller; at least two brush strips, including a first brush strip and a second brush strip, which are respectively arranged on the periphery of the brush roller, and the distance between the outer end of the first brush strip in the radial direction of the brush roller and the central axis of the brush roller is x1, and the distance between the outer end of the second brush strip in the radial direction of the brush roller and the central axis of the brush roller is x2, and x1<x2.

[0009] According to the roller brush of the embodiment of the present application, by setting the distance between the outer end of the second brush bar and the central axis of the brush roller to be greater than the distance between the outer end of the first brush bar and the central axis of the brush roller, when the roller brush is used to clean the part to be cleaned, the second brush bar can penetrate deeper into the part to be cleaned than the first brush bar, which is beneficial for the second brush bar to clean the stains deep in the part to be cleaned; thus, when the first brush bar and the second brush bar rotate with the brush roller, the first brush bar can repeatedly scrub the surface and middle part of the part to be cleaned, and the second brush bar can penetrate deep into the part to be cleaned to clean the deep part of the part to be cleaned, so that the roller brush can achieve cleaning of the surface, middle and deep part of the part to be cleaned, and the cleaning effect of the roller brush can be improved.

[0010] In some embodiments, the first brush bar is a sheet-like brush bar, including a first connecting end connected to the brush roller and a first free end extending away from the brush roller; the second brush bar is a columnar brush bar, including a second connecting end connected to the brush roller and a second free end extending away from the brush roller.

[0011] In some embodiments, the brush roller has a center line perpendicular to the central axis, and along the axial direction of the brush roller, the sheet-like brush strip extends from one end side of the brush roller to the middle position of the brush roller and crosses the center line, or, along the axial direction of the brush roller, the sheet-like brush strip extends from one end side of the brush roller along the axial direction of the brush roller to the other end side of the brush roller.

[0012] In some embodiments, the brush roller has a first end side and a second end side located on both sides of the center line. Along the axial direction of the brush roller, one group of sheet brush strips extends from the first end side to the middle position of the brush roller and crosses the center line, and another group of sheet brush strips extends from the second end side to the middle position of the brush roller and crosses the center line.

[0013] In some embodiments, in the axial direction of the brush roller, the first brush bar extends in a spiral shape along the axial direction of the brush roller.

[0014] In some embodiments, the spiral directions of any two adjacent first brush bars are opposite.

[0015] In some embodiments, a plurality of second brush bars sequentially disposed along the axial direction of the brush roller are arranged in a row, and at least one row of the second brush bars and at least one of the first brush bars form a brush unit.

[0016] In some embodiments, in the brush unit, an arrangement direction of a row of the second brush bars is consistent with a spiral direction of the first brush bars in the brush unit.

[0017] In some embodiments, 2mm≤x2-x1≤7mm.

[0018] In some embodiments, the outer peripheral wall of the second brush strip is any one of tangent continuity, curvature continuity, curvature change rate continuity, and curvature change rate continuity.

[0019] According to the second embodiment of the present application, the cleaning device includes: a body; a roller brush, wherein the roller brush is the roller brush according to the first embodiment of the present application, and the roller brush is rotatably provided on the body.

[0020] According to the cleaning device of the embodiment of the present application, by adopting the above-mentioned roller brush, the cleaning effect of the cleaning device can be improved and the damage to the cleaning parts during the cleaning process can be reduced.

[0021] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] FIG1 is a schematic diagram of a roller brush according to some embodiments of the present application;

[0024] FIG2 is another schematic diagram of the roller brush shown in FIG1 ;

[0025] FIG3 is another schematic diagram of the roller brush shown in FIG1 ;

[0026] FIG. 4 is another schematic diagram of the roller brush shown in FIG. 1 .

[0027] Reference numerals:

[0028] Roller brush 100, center line 10a,

[0029] Brush roller 1, first assembly hole 1a, second assembly hole 1b, center axis 1c,

[0030] Brush unit 2, brush strip row 2a, first brush strip 21, first connection end 21a, first free end 21b, second brush strip 22, second connection end 22a, second free end 22b,

[0031] A first end side 3a and a second end side 3b. DETAILED DESCRIPTION

[0032] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0033] The disclosure below provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the applicability of other processes and / or the use of other materials.

[0034] Hereinafter, with reference to the accompanying drawings, a roller brush 100 according to an embodiment of the present application will be described. The roller brush 100 can be used in a cleaning device for cleaning an object to be cleaned (eg, a carpet, etc.).

[0035] For simplicity, the following description uses the example of a cleaning device in which the roller brush 100 is used and the object to be cleaned is a carpet. The cleaning device includes the roller brush 100 and has a corresponding drive mechanism for driving the roller brush 100 to rotate so that the roller brush 100 can clean stains on the carpet. Of course, the roller brush 100 can also be used in other devices that require a cleaning function, such as a vacuum cleaner, and the object to be cleaned can also be clothing or the floor.

[0036] As shown in Figures 1 and 2, the roller brush 100 includes a brush roller 1 and at least two brush strips, including a first brush strip 21 and a second brush strip 22. The first brush strip 21 and the second brush strip 22 are respectively disposed on the periphery of the brush roller 1 and protrude from the outer peripheral wall of the brush roller 1. The first brush strip 21 and the second brush strip 22 rotate with the brush roller 1 around the central axis 1c of the brush roller 1, so that the first brush strip 21 and the second brush strip 22 clean the carpet. Therefore, when the roller brush 100 of the cleaning device rotates at high speed around the central axis 1c of the brush roller 1, the first brush strip 21 and the second brush strip 22 rotate with the brush roller 1 to repeatedly clean the carpet.

[0037] 4 , the distance between the radial outer end of the first brush strip 21 and the central axis 1c of the brush roller 1 is x1, and the distance between the radial outer end of the second brush strip 22 and the central axis 1c of the brush roller 1 is x2, x1<x2, in the radial direction of the brush roller 1, the above-mentioned outer end of the first brush strip 21 is located radially outside the outer peripheral wall of the brush roller 1, and the above-mentioned outer end of the second brush strip 22 is located radially outside the outer peripheral wall of the brush roller 1; when the roller brush 100 is used to clean the carpet, the second brush strip 22 can penetrate deeper into the carpet than the first brush strip 21, which is beneficial for the second brush strip 22 to clean stains deep in the carpet. Therefore, when the first brush bar 21 and the second brush bar 22 rotate with the brush roller 1, the first brush bar 21 can clean the surface and the middle of the carpet, so that the first brush bar 21 can clean the stains on the surface and the middle of the carpet, and the second brush bar 22 can clean the deep part of the carpet, so that the roller brush 100 can clean the surface, middle and deep part of the carpet, that is, realize layered cleaning of the carpet, which can improve the cleaning effect of the first brush bar 21 and the second brush bar 22.

[0038] It can be understood that, in the radial direction of the brush roller 1, the end of the first brush strip 21 away from the central axis 1c of the brush roller 1 is the outer end of the first brush strip 21 in the radial direction of the brush roller 1, the end of the first brush strip 21 adjacent to the central axis 1c of the brush roller 1 is the inner end of the first brush strip 21 in the radial direction of the brush roller 1, the end of the second brush strip 22 away from the central axis 1c of the brush roller 1 is the outer end of the second brush strip 22 in the radial direction of the brush roller 1, and the end of the second brush strip 22 adjacent to the central axis 1c of the brush roller 1 is the inner end of the second brush strip 22 in the radial direction of the brush roller 1. The axial direction of the brush roller 1 is the extending direction of the central axis 1c of the brush roller 1, the radial direction of the brush roller 1 is the direction passing through the central axis 1c of the brush roller 1 in a radial plane, the radial plane is perpendicular to the central axis 1c of the brush roller 1, the circumferential direction of the brush roller 1 is the direction around the central axis 1c of the brush roller 1, and the circumferential direction of the brush roller 1 is perpendicular to the radial direction and the axial direction of the brush roller 1, respectively.

[0039] According to the roller brush 100 of the embodiment of the present application, by setting the distance between the outer end of the second brush bar 22 and the central axis 1c of the brush roller 1 to be greater than the distance between the outer end of the first brush bar 21 and the central axis 1c of the brush roller 1, when the roller brush 100 is used to clean the part to be cleaned, the second brush bar 22 can penetrate deeper into the part to be cleaned than the first brush bar 21, which is beneficial for the second brush bar 22 to clean stains deep in the part to be cleaned; thus, when the first brush bar 21 and the second brush bar 22 rotate with the brush roller 1, the first brush bar 21 can repeatedly scrub the surface and middle part of the part to be cleaned, and the second brush bar 22 can penetrate deep into the part to be cleaned to clean the deep part of the part to be cleaned, so that the roller brush 100 can achieve cleaning of the surface, middle and deep part of the part to be cleaned, and the cleaning effect of the roller brush 100 can be improved.

[0040] For example, the first brush bar 21 and the second brush bar 22 may be rubber parts, so that the damage to the carpet caused by the roller brush 100 can be reduced when cleaning the carpet, which is conducive to achieving zero damage to the carpet caused by the roller brush 100 during the cleaning process.

[0041] In some embodiments, referring to Figures 1 and 4 , the distance between the radially outer end of the first brush strip 21 and the central axis 1c of the brush roller 1 is x1, and the distance between the radially outer end of the second brush strip 22 and the central axis 1c of the brush roller 1 is x2. 2mm≤x2-x1≤7mm. This allows the second brush strip 22 to penetrate deeper into the carpet more effectively than the first brush strip 21, thereby effectively cleaning the deeper parts of the carpet. This improves the cleaning effect of the roller brush 100, making it suitable for cleaning carpets of varying thicknesses without wasting material from the second brush strip 22. For example, the difference x2-x1 can be 2mm, 3mm, 4mm, 5mm, 6mm, or 7mm.

[0042] In some embodiments, as shown in Figures 1 and 2, the first brush strip 21 is a sheet-shaped brush strip, comprising a first connecting end 21a connected to the brush roller 1 and a first free end 21b extending away from the brush roller 1; the second brush strip 22 is a columnar brush strip, comprising a second connecting end 22a connected to the brush roller 1 and a second free end 21b extending away from the brush roller 1. Exemplarily, the first brush strip 21 extends in an elongated strip shape along the axial direction of the brush roller 1, for example, the first brush strip 21 is formed into a substantially rectangular parallelepiped structure, and the second brush strip 22 extends in an elongated strip shape along the radial direction of the brush roller 1, for example, the second brush strip 22 is formed into a cylindrical structure.

[0043] It can be seen that the first brush bar 21 is a sheet-like brush bar, and the first brush bar 21 is continuous and formed into a long strip structure. During the cleaning process, the first brush bar 21 cleans the carpet in a manner similar to patting or rubbing, and the first brush bar 21 is continuous, which can reduce the damage of the first brush bar 21 to the carpet hair, and even achieve zero-damage cleaning to the carpet hair; the second brush bar 22 extends into a long strip along the radial direction of the brush roller 1, so that the second brush bar 22 forms a columnar structure, and the second brush bar 22 is a single-strip design; during the cleaning process, the second brush bar 22 cleans the carpet in a scrubbing manner, which can reduce the damage of the second brush bar 22 to the carpet hair, and the carpet hair is not easily rolled away during the cleaning process. After cleaning is completed, there is basically no need to clean the carpet hair on the roller brush 100, etc., which is conducive to solving the problem of the roller brush 100 damaging the carpet during the cleaning process.

[0044] For example, at least one first brush bar 21 and at least one second brush bar 22 are arranged at intervals along the circumference of the brush roller 1. When the first brush bar 21 and the second brush bar 22 rotate with the brush roller 1, the first brush bar 21 can repeatedly scrub the surface and middle part of the carpet. When the first brush bar 21 rotates with the brush roller 1, the first brush bar 21 contacts the carpet hair and presses the carpet hair to the side of the first brush bar 21 in the direction of rotation of the brush roller 1, that is, the carpet hair deflects to one side to expose the deep part of the carpet, and then the second brush bar 22 can penetrate deep into the carpet to clean the deep part of the carpet, so that the brush unit 2 can clean the surface, middle and deep part of the carpet. Secondly, the deflection of the carpet hair to one side can reduce the contact between the second brush bar 22 and the carpet hair, which is conducive to further reducing the damage to the carpet by the second brush bar 22.

[0045] It can be understood that the first free end 21b is the outer end of the first brush strip 21 in the radial direction of the brush roller 1, and the first connecting section 21a is the inner end of the first brush strip 21 in the radial direction of the brush roller 1; the second free end 22b is the outer end of the second brush strip 22 in the radial direction of the brush roller 1, and the second connecting section 22a is the inner end of the second brush strip 22 in the radial direction of the brush roller 1.

[0046] It can be understood that, in the radial direction of the brush roller 1, the distances between various parts of the radial outer end of the first brush strip 21 and the central axis 1c of the brush roller 1 may be equal or unequal; when there are multiple second brush strips 21, the distances between the radial outer ends of the multiple first brush strips 21 and the central axis 1c of the brush roller 1 may be equal or unequal.

[0047] In some embodiments, the brush roller 1 is formed with a first assembly hole 1a, and the first brush strip 21 is inserted into the first assembly hole 1a; and / or the brush roller 1 is formed with a second assembly hole 1b, and the second brush strip 22 is inserted into the second assembly hole 1b.

[0048] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0049] In some examples, as shown in Figures 1 and 3, the brush roller 1 is formed with a first assembly hole 1a, and the first connecting end 21a of the first brush strip 21 is inserted into the first assembly hole 1a, so that the first brush strip 21 can be reliably and conveniently installed on the brush roller 1. Therefore, by providing the first assembly hole 1a on the brush roller 1 to facilitate the installation of the first brush strip 21, the roller brush 100 is easier to manufacture and the installation of the first brush strip 21 is more convenient.

[0050] In some examples, as shown in Figures 1 and 3, the brush roller 1 is formed with a second assembly hole 1b, and the second connection end 22a of the second brush strip 22 is inserted into the second assembly hole 1b, so that the second brush strip 22 can be reliably and conveniently installed on the brush roller 1. Therefore, by providing the second assembly hole 1b on the brush roller 1 to facilitate the installation of the second brush strip 22, the manufacture of the roller brush 100 is made easier, and the installation of the second brush strip 22 is made more convenient.

[0051] For example, in the examples of Figures 1 and 3, the brush roller 1 is formed with a first assembly hole 1a and a plurality of second assembly holes 1b, the first assembly hole 1a is formed as an approximately T-shaped groove, the second assembly hole 1b is formed as a cylindrical groove, the first assembly hole 1a extends in an axial spiral along the brush roller 1, and the plurality of second assembly holes 1b corresponding to the first assembly hole 1a are arranged at intervals along the axial spiral of the brush roller 1, the first brush strip 21 is inserted into the first assembly hole 1a from one axial end of the brush roller 1, and the plurality of second brush strips 22 are respectively inserted into the corresponding second assembly holes 1b from the radial outside of the brush roller 1.

[0052] For example, the brush roller 1 and the first brush strip 21, or the brush roller 1 and the second brush strip 22 can be obtained by processing a two-color mold or a rubber-coated mold; or, the first brush strip 21 is axially inserted (for example, axially spirally or linearly inserted) through the first assembly hole 1a on the brush roller 1 to realize the assembly of the first brush strip 21 and the brush roller 1, and the second brush strip 22 is assembled through the second assembly hole 1b on the brush roller 1 by inlaying, pressing, or bonding technology.

[0053] Compared to some technologies, the brush roller is provided with multiple bristles, and the multiple bristles are formed into a tuft. When cleaning the carpet, the multiple bristles formed into a tuft can easily become entangled with the carpet hair, making it very easy to carry away the carpet hair during the cleaning process. After cleaning, the carpet hair entangled in the bristles needs to be cleaned, which can easily cause damage to the carpet and increase the difficulty of cleaning. In the embodiment of the present application, a second brush strip 22 is provided in the second assembly hole 1b. The second brush strip 22 is integral, which helps reduce the friction between the second brush strip 22 and the carpet hair, facilitating the avoidance of the second brush strip 22 becoming entangled with the carpet hair during the cleaning process and damaging the carpet. It also makes it simple and convenient to handle the roller brush after cleaning.

[0054] In some embodiments, as shown in Figures 1 and 2, the brush roller 1 has a center line 10a perpendicular to the central axis 1c. Along the axial direction of the brush roller 1, the sheet brush strips extend from one end of the brush roller 1 to the middle position of the brush roller 1 and cross the center line 10a. In this case, one or more first brush strips 21 can be provided in the axial direction of the brush roller 1. Alternatively, along the axial direction of the brush roller 1, the sheet brush strips extend from one end of the brush roller 1 to the other end of the brush roller 1 along the axial direction of the brush roller 1. In this case, one first brush strip 21 can be provided in the axial direction of the brush roller 1. Thus, the first brush strip 21 has different setting lengths relative to the brush roller 1, so that the first brush strip 21 can be provided in a variety of ways, so that the roller brush 100 can adapt to different cleaning environments and at the same time facilitate the improvement of the cleaning range of the first brush strip 21.

[0055] For example, with reference to FIG1 , taking the axial direction of the brush roller 1 (e.g., the extension direction of the central axis 1c) as the left-right direction, at least one sheet brush strip extends from the left end of the brush roller 1 toward the right end of the brush roller 1, and the at least one sheet brush strip extends to the right side of the centerline 10a of the brush roller 1. Of course, in other examples, at least one sheet brush strip may also extend from the left end of the brush roller 1 to the right end of the brush roller 1.

[0056] For example, when the carpet that the roller brush 100 needs to clean is of low cleaning difficulty, a first brush strip 21 can be optionally set in the axial direction of the brush roller 1, so as to reduce the processing difficulty of the roller brush 100 while ensuring the cleaning effect. When the carpet that the roller brush 100 needs to clean is of high cleaning difficulty, multiple first brush strips 21 can be optionally set in the axial direction of the brush roller 1, so as to ensure that the roller brush 100 has a sufficient cleaning range, which is conducive to improving the cleaning efficiency.

[0057] In some embodiments, as shown in Figures 1 and 2, the brush roller 1 has a first end side 3a and a second end side 3b located on both sides of a center line 10a. Along the axial direction of the brush roller 1, one group of sheet brush strips extends from the first end side 3a to the middle position of the brush roller 1 and crosses the center line 10a, and the other group of sheet brush strips extends from the second end side 3b to the middle position of the brush roller 1 and crosses the center line 10a. Thus, two groups of first brush strips 21 are provided on the brush roller 1. The two groups of first brush strips 21 are arranged in sequence along the axial direction of the brush roller 1, and the two groups of first brush strips 21 extend axially toward each other and cross the center line 10a, so that the two groups of first brush strips 21 partially overlap in the corresponding spaces in the axial direction of the brush roller 1, so that the first brush strips 21 are fully distributed in the axial direction of the brush roller 1, avoiding gaps in the roller brush 100 when cleaning the carpet, thereby ensuring reliable cleaning of the roller brush 100.

[0058] For example, in combination with Figure 1, taking the axial direction of the brush roller 1 as the left and right direction, the left end of the brush roller 1 as the first end side 3a, and the right end of the brush roller 1 as the second end side 3b as an example, two groups of sheet brush strips are provided on the outer periphery of the brush roller 1, and the two groups of sheet brush strips are arranged in sequence along the axial direction of the brush roller 1. The group of sheet brush strips located on the left extends from the first end side 3a toward the second end side 3b and extends to the right side of the center line 10a, and the group of sheet brush strips located on the right extends from the second end side 3b toward the first end side 3a and extends to the left side of the center line 10a, so that the space occupied by the two groups of sheet brush strips in the axial direction of the brush roller 1 partially overlaps.

[0059] Exemplarily, a group of sheet brush strips (i.e., a group of first brush strips 21 ) may include one or more first brush strips 21 . When a group of sheet brush strips includes multiple first brush strips 21 , the multiple first brush strips 21 may be arranged in sequence along the circumference of the brush roller 1 .

[0060] Of course, the sheet-like brush strips can also be provided in three or more groups. In other words, the brush roller 1 can be provided with multiple groups of first brush strips 21, which are sequentially arranged along the axial direction of the brush roller 1, and in the axial direction of the brush roller 1, the spaces occupied by two adjacent groups of first brush strips 21 in the axial direction of the brush roller 1 partially overlap.

[0061] In some embodiments, as shown in Figures 1 and 2, the first brush strip 21 extends in a spiral shape along the axial direction of the brush roller 1, so that when the roller brush 100 rotates, the first brush strip 21 remains substantially upright when in contact with the carpet. This facilitates ensuring that a portion of the first brush strip 21 contacts the carpet at any rotational state during the rotation of the roller brush 100, thereby improving the rotational stability of the roller brush 100 and reducing the rotational noise of the roller brush 100. As a result, when the roller brush 100 contacts the carpet, the first brush strip 21 in contact with the carpet supports the roller brush 100 on the carpet. When the brush roller 1 is provided with multiple first brush strips 21 sequentially arranged along the axial direction of the brush roller 1, a multi-point contact state is formed between the roller brush 100 and the carpet, which facilitates reducing the noise when the roller brush 100 contacts the carpet.

[0062] In some embodiments, as shown in Figures 1 and 2, in the axial direction of the brush roller 1, the spiral directions of any two adjacent first brush strips 21 are opposite, and there are multiple first brush strips 21. At least two of the multiple first brush strips 21 are arranged in sequence along the axial direction of the brush roller 1, and the spiral directions of any adjacent at least two first brush strips 21 are opposite. In this way, when the roller brush 100 rotates, the two adjacent first brush strips 21 can form a pulling force that moves from the sides of the two adjacent first brush strips 21 toward the middle, so that dirt can be collected toward the middle of the two adjacent first brush strips 21, so as to concentrate the dirt. Solid dirt, liquid dirt, or mixed dirt can all be well concentrated in the middle of the two adjacent first brush strips 21, so as to better concentrate the garbage or dirt and improve the cleaning effect.

[0063] For example, in the circumferential direction of the brush roller 1 , the spiral directions of any two adjacent first brush strips 21 are the same.

[0064] In some embodiments, as shown in Figures 1 and 2, a plurality of second brush strips 22 arranged in sequence along the axial direction of the brush roller 1 are arranged in a row, and at least one row of second brush strips 22 and at least one first brush strip 21 form a brush unit 2. Thus, the first brush strips 21 and the row of second brush strips 22 can cooperate with each other to improve the cleaning effect of the roller brush 100.

[0065] The number of first brush strips 21 and corresponding second brush strips 22 in the brush unit 2 is not limited; the number of rows of second brush strips 22 in the brush unit 2 can be greater than, equal to, or less than the number of first brush strips 21. For the same brush unit 2, the positions of the first brush strip 21 and the plurality of second brush strips 22 on the brush roller 1 are not limited. For example, the first brush strip 21 and the plurality of second brush strips 22 can be arranged along the axial direction of the brush roller 1, or the first brush strip 21 and the plurality of second brush strips 22 can be arranged sequentially along the circumference of the brush roller 1, etc.

[0066] For example, each brush unit 2 includes a first brush strip 21 and a row of second brush strips 22 arranged at intervals along the circumference of the brush roller 1, and the outer peripheral wall of the brush roller 1 is provided with a plurality of brush units 2, and the plurality of brush units 2 are arranged at intervals along the circumference and / or axial direction of the brush roller 1. For example, in the examples of Figures 1 and 2, the outer peripheral wall of the brush roller 1 is provided with a plurality of brush units 2, and the plurality of brush units 2 are arranged at intervals along the circumference of the brush roller 1, and each brush unit 2 includes a first brush strip 21 and a plurality of second brush strips 22 arranged at intervals along the circumference of the brush roller 1, and in the same brush unit 2, the length of the plurality of second brush strips 22 in the axial direction of the brush roller 1 is consistent with or not much different from the length of the first brush strip 21 in the axial direction (for example, the difference between the length of the plurality of second brush strips 22 in the axial direction of the brush roller 1 and the length of the first brush strip 21 in the axial direction is less than the spacing between two adjacent second brush strips 22 in the axial direction of the brush roller 1).

[0067] It can be understood that the brush unit 2 includes a first brush strip 21 and a row of second brush strips 22 arranged at intervals along the circumference of the brush roller 1. When multiple brush units 2 are arranged at intervals along the circumference of the brush roller 1 and the axial direction of the brush roller 1, as shown in Figure 1, the multiple brush units 2 arranged at intervals along the circumference of the brush roller 1 can be constructed into a row of brush strip rows 2a, and the multiple rows of brush strip rows 2a are arranged in sequence along the axial direction of the brush roller 1. Therefore, the multiple brush units 2 are arranged on the brush roller 1 according to a certain pattern, so that the multiple brush units 2 cooperate with each other to clean the carpet, so that the cleaning efficiency of the carpet can be improved.

[0068] For example, the brush units 2 of the two adjacent rows of brush strips 2a are staggered along the circumference of the brush roller 1, and the projections of the brush units 2 of the two adjacent rows of brush strips 2a along the axial direction of the brush roller 1 partially overlap, or are spaced apart along the circumference of the brush roller 1, which is convenient for the arrangement of the brush units 2. At the same time, the contact area between the brush roller 1 and the carpet during the rolling process can be reduced, which is beneficial to improving the rotation stability of the roller brush 100 and reducing the rotation noise of the roller brush 100; and / or, the brush units 2 of at least two adjacent rows of brush strips 2a are staggered along the axial spiral direction of the brush roller 1 The spiral directions of the corresponding brush units 2 of at least two adjacent rows of brush strips 2a are opposite, so that when the roller brush 100 rotates, the two adjacent rows of brush strips 2a can form a pulling force that gathers from the two sides of the adjacent rows of brush strips 2a toward the middle, so that the dirt can be collected toward the middle of the two adjacent rows of brush strips 2a, so as to concentrate the dirt, so that solid dirt or liquid dirt or mixed dirt can be well concentrated in the middle of the two adjacent rows of brush strips 2a, so as to better concentrate the garbage or dirt for processing, which is conducive to improving the cleaning effect.

[0069] For example, in the example of Figure 1, each brush unit 2 includes a first brush bar 21 and a plurality of second brush bars 22 arranged at intervals along the axial direction. The first brush bar 21 extends spirally along the axial direction of the brush roller 1, and the plurality of second brush bars 22 are arranged spirally at intervals along the axial direction of the brush roller 1. The length of the extended trajectory of the first brush bar 21 is equal to and parallel to the length of the trajectory of the plurality of second brush bars 22 arranged spirally at intervals.

[0070] For example, when there are multiple rows of brush strip rows 2a, the multiple rows of brush strip rows 2a are arranged in sequence along the axial direction of the brush roller 1, and each row of brush strip rows 2a includes multiple brush units 2 arranged in sequence along the circumference of the brush roller 1. The corresponding brush units 2 of two adjacent rows of brush strip rows 2a are staggered along the circumference of the brush roller 1. At this time, the brush roller 1 may include a first part and a second part arranged adjacent to each other in the axial direction, the first part is used to set a row of brush strip rows 2a and the axial length of the first part is equal to the length occupied by the brush strip row 2a in the axial direction, the second part is used to set a row of brush strip rows 2a and the axial length of the second part is equal to the length occupied by the brush strip row 2a in the axial direction, the first part and the second part partially overlap, so that the corresponding spatial parts of the two adjacent rows of brush strip rows 2a in the axial direction of the brush roller 1 overlap, so that the brush strip rows 2a are fully distributed over the brush roller 1 in the axial direction of the brush roller 1, avoiding gaps in the roller brush 100 when cleaning the carpet, thereby ensuring the reliable cleaning of the roller brush 100.

[0071] Taking the circumferential spacing arrangement of the first brush strip 21 and at least one row of second brush strips 22 in the same brush unit 2 along the brush roller 1 as an example, all rows of second brush strips 22 can be located on the same side of the first brush strip 21 in the circumferential direction of the brush roller 1. At this time, the arrangement order of the first brush strip 21 and at least one row of second brush strips 22 in the circumferential direction of the brush roller 1 of the same brush unit 2 can be the same as or opposite to the rotation direction of the roller brush 100, that is, when the roller brush 100 rotates to clean the parts to be cleaned, for the same group of brush units 2: 1. 1. The entire first brush bar 21 contacts the object to be cleaned before all the second brush bars 22; 2. All the second brush bars 22 contact the object to be cleaned before the entire first brush bar 21; 3. The first brush bar 21 extends along the axial curve of the brush roller 1, and each part of the first brush bar 21 corresponding to the second brush bar 22 contacts the object to be cleaned before the corresponding second brush bar 22; 4. The first brush bar 21 extends along the axial curve of the brush roller 1, and each second brush bar 22 contacts the object to be cleaned before its corresponding part of the first brush bar 21; etc.

[0072] Alternatively, taking the circumferential spacing arrangement of the first brush strip 21 and multiple rows of second brush strips 22 along the brush roller 1 in the same brush unit 2 as an example, the multiple rows of second brush strips 22 in the same group of brush units 2 can be respectively located on both sides of the first brush strip 21 in the circumferential direction of the brush roller 1, and the number of rows of the second brush strips 22 on both sides of the first brush strip 21 in the circumferential direction of the brush roller 1 is not limited. That is to say, for a single brush unit 2, the first brush strip 21 is provided with at least one row of second brush strips 22 on one side of the brush roller 1 in the circumferential direction, and the first brush strip 21 is provided with at least one row of second brush strips 22 on the other side of the brush roller 1 in the circumferential direction.

[0073] Thus, there are multiple options for the number of rows and placement of the second brush strips 22 corresponding to the same first brush strip 21, thereby improving the applicability of the roller brush 100 so that the roller brush 100 can adapt to different usage requirements. For example, when a better cleaning effect is required, more second brush strips 22 can be arranged corresponding to the first brush strip 21, or when cleaning softer items to be cleaned, fewer second brush strips 22 can be arranged corresponding to the first brush strip 21.

[0074] Of course, those skilled in the art of the present application may also understand an embodiment in which the brush unit 2 includes a first brush strip 21 and at least one row of second brush strips 22 spaced apart along the axial direction of the brush roller 1. In some embodiments, as shown in Figures 1 and 3, in the same brush unit 2, the first brush strip 21 extends spirally along the axial direction of the brush roller 1, and the plurality of second brush strips 22 in at least one row of second brush strips 22 are spaced apart spirally along the axial direction of the brush roller 1, so that during the rotation of the roller brush 100, the first brush strip 21 and the second brush strip 22 are basically kept in an upright state when in contact with the carpet, so that a portion of the brush unit 2 is in contact with the carpet in any rotation state during the rotation of the roller brush 100, which is beneficial to improving the rotation stability of the roller brush 100 and reducing the rotation noise of the roller brush 100.

[0075] Exemplarily, the brush unit 2 includes a first brush bar 21 and a row of second brush bars 22 , wherein the first brush bar 21 extends spirally along the axial direction of the brush roller 1 , and the plurality of second brush bars 22 in the row of second brush bars 22 are sequentially arranged spirally along the axial direction of the brush roller 1 .

[0076] Of course, in other embodiments, in the same brush unit 2, the first brush strip 21 extends in a direction parallel to the axial direction of the brush roller 1, and the plurality of second brush strips 22 in at least one row of second brush strips 22 are spaced apart in a direction parallel to the axial direction of the brush roller 1.

[0077] In some embodiments, as shown in Figures 1 and 2, in the brush unit 2, the arrangement direction of the row of second brush strips 22 is consistent with the spiral direction of the first brush strips 21 in the brush unit 2, so that the arrangement of the first brush strips 21 and the row of second brush strips 22 is more reasonable and compact, so that more brush units 2 can be arranged on the outer peripheral wall of the brush roller 1, so that the roller brush 100 can adapt to more complex cleaning environments and ensure that the roller brush 100 has appropriate cleaning ability and cleaning effect. In this case, the first brush strips 21 extend in a spiral shape along the axial direction of the brush roller 1, and the row of second brush strips 22 are arranged in a spiral shape at intervals along the axial direction of the brush roller 1.

[0078] Illustratively, for the same brush unit 2 , the trajectory of the first brush strip 21 extending in a spiral along the axial direction of the brush roller 1 is parallel or approximately parallel to the trajectory of the plurality of second brush strips 22 arranged in a spirally spaced arrangement in the axial direction of the brush roller 1 .

[0079] Exemplarily, in the brush unit 2, the first brush strip 21 and at least one row of second brush strips 22 are arranged in sequence along the circumference of the brush roller 1. At this time, for the same brush unit 2, the axial extension track length of the first brush strip 21 is basically equal to the track length of the multiple second brush strips 22 in a row of second brush strips 22 arranged at intervals, so as to improve the coordinated cleaning effect of the second brush strips 22 and the first brush strips 21 in the brush unit 2.

[0080] In some embodiments, in combination with Figure 1, multiple brush units 2 are arranged in sequence along the circumference of the brush roller 1, and each brush unit 2 includes a first brush strip 21 and a row of second brush strips 22 arranged in sequence along the circumference of the brush roller 1, and each row of second brush strips 22 includes multiple second brush strips 22 arranged in sequence along the axial direction of the brush roller 1, and the spacing between two adjacent brush units 2 is greater than the spacing between the first brush strip 21 and the second brush strip 22 of the same brush unit 2, that is, the distance between the first brush strip 21 and the second brush strip 22 of the same group of brush units 2 is closer, so that the first brush strip 21 and the second brush strip 22 cooperate with each other, when the first brush strip 21 contacts the carpet hair and presses the carpet hair toward one side of the rotation direction, so that the carpet hair is deflected in sequence, the carpet is exposed deep so that the second brush strip 22 can better and timely extend into the deep part of the carpet for cleaning, and the contact between the second brush strip 22 and the carpet hair can be reduced, thereby reducing the chance of the second brush strip 22 rolling away the carpet hair, and reducing the damage to the carpet hair by the second brush strip 22.

[0081] In some embodiments, as shown in FIG1 , the outer peripheral wall of the second brush strip 22 is any one of tangent continuity, curvature continuity, curvature change rate continuity, and curvature change rate continuous. The surface of the second brush strip 22 is approximately rounded, which is convenient for reducing the friction between the second brush strip 22 and the carpet hair, thereby reducing the damage to the carpet by the second brush strip 22, and making it difficult for the second brush strip 22 to roll away the carpet hair during the cleaning process.

[0082] For example, the cross section of the second brush strip 22 may be circular or elliptical.

[0083] In some embodiments, referring to FIG1 , the equivalent diameter of the second brush strip 22 is d, and 2 mm ≤ d ≤ 5 mm. This allows the second brush strip 22 to have an appropriate diameter, thereby reducing the chance of the second brush strip 22 becoming entangled with the carpet hair during cleaning, thereby preventing the second brush strip 22 from rolling away the carpet hair and reducing damage to the carpet caused by the second brush strip 22. For example, the equivalent diameter d of the second brush strip 22 can be 2 mm, 3 mm, 4 mm, or 5 mm.

[0084] In some embodiments, at least one of the first brush strip 21 and the second brush strip 22 is integrally injection molded on the brush roller 1, which can improve the connection strength between the at least one of the first brush strip 21 and the second brush strip 22 and the brush roller 1, which is beneficial to improving the reliability and service life of the roller brush 100.

[0085] The cleaning device according to the second embodiment of the present application includes a body and a roller brush 100. The roller brush 100 is the roller brush 100 according to the first embodiment of the present application, and the roller brush 100 is rotatably provided on the body.

[0086] According to the cleaning device of the embodiment of the present application, by adopting the above-mentioned roller brush 100, the cleaning effect of the cleaning device can be improved and the damage to the cleaning object during the cleaning process can be reduced.

[0087] For example, the cleaning device further includes a driving mechanism, which is disposed on the body and is used to drive the roller brush 100 to rotate around the central axis 1 c of the brush roller 1 .

[0088] The roller brush 100 according to an embodiment of the present application will be described in detail below with reference to Figures 1 to 4. It should be understood that the following description is merely an example and does not specifically limit the present application.

[0089] As shown in Figures 1 to 4, the roller brush 100 can rotate at high speed around the central axis 1c of the brush roller 1 under the action of the driving mechanism. The first brush bar 21 and the second brush bar 22 rotate synchronously with the brush roller 1 at high speed to repeatedly scrub the surface and deep part of the carpet. The generated stains are sucked into the corresponding storage device (such as a sewage tank) by the negative pressure generated by the cleaning equipment.

[0090] The roller brush 100 includes a brush roller 1 and a plurality of brush units 2, the plurality of brush units 2 being arranged on the brush roller 1, and a plurality of brush units 2 being arranged at equal intervals along the circumference of the brush roller 1 forming two rows of brush strip rows 2a, the two rows of brush strip rows 2a being arranged in sequence along the axial direction of the brush roller 1, each brush unit 2 including a first brush strip 21 and a plurality of second brush strips 22 being arranged at intervals along the axial direction, the corresponding brush units 2 of the two rows of brush strip rows 2a being staggered along the circumference of the brush roller 1, that is, the first brush strips 1 corresponding to the two rows of brush strip rows 2a are staggered along the circumference of the brush roller 1 The second brush strips 22 corresponding to the two rows of brush strips 2a are staggered along the circumference of the brush roller 1; the first brush strips 21 extend into a rectangular structure along the axial direction of the brush roller 1, and the second brush strips 22 extend into a cylindrical structure along the radial direction of the brush roller 1. The first brush strips 21 are spirally arranged around the central axis 1c of the brush roller 1, and the multiple second brush strips 22 corresponding to the first brush strips 21 are spirally equidistantly spaced around the central axis 1c of the brush roller 1, and the spiral directions of the corresponding brush units 2 of the two adjacent rows of brush strips 2a are opposite.

[0091] Taking the roller brush 100 for cleaning the carpet, the first brush strip 21 and the second brush strip 22 are rubber parts as an example. When the roller brush 100 rotates at high speed, the first brush strip 21 and the second brush strip 22 rotate at high speed together with the brush roller 1. The first brush strip 21 is soft and continuous. The first brush strip 21 cleans the surface and middle of the carpet in the form of high-speed slapping or friction, thereby reducing the damage of the carpet hair by the first brush strip 21 during the cleaning process. When the first brush bar 21 is cleaning the carpet, the first brush bar 21 presses the carpet hair to deflect the carpet hair toward one side of the first brush bar 21 to expose the deep part of the carpet hair. At this time, the second brush bar 22 extends into the deep part of the carpet to scrub the deep part of the carpet. The surface of the second brush bar 22 is smooth, which can reduce the friction between the second brush bar 22 and the carpet hair, and can avoid the second brush bar 22 rolling away the carpet hair during the cleaning process; thus, when the roller brush 100 cleans the carpet, the damage to the carpet caused by the first brush bar 21 and the second brush bar 22 can be reduced, and even zero damage to the carpet can be achieved during the cleaning process. At the same time, the roller brush 100 can be effectively prevented from being entangled with hair, thereby reducing the process of hair removal and cleaning after cleaning is completed.

[0092] In the description of the present application, it should be understood that the terms "center", "length", "upper", "lower", "front", "back", "inner", "outer", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0093] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0094] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0095] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and purpose of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A roller brush, wherein, Comprising: Brush roller; At least two brush strips, including a first brush strip and a second brush strip, respectively arranged on the outer periphery of the brush roller. The distance between the outer end of the first brush strip in the radial direction of the brush roller and the central axis of the brush roller is x1, and the distance between the outer end of the second brush strip in the radial direction of the brush roller and the central axis of the brush roller is x2, where x1 < x2.

2. The roller brush according to claim 1, wherein, The first brush strip is a sheet-like brush strip, including a first connection end connected to the brush roller and a first free end extending away from the brush roller; the second brush strip is a columnar brush strip, including a second connection end connected to the brush roller and a second free end extending away from the brush roller.

3. The rotary brush according to claim 2, wherein, The brush roller has a center line perpendicular to the central axis. Along the axial direction of the brush roller, the sheet-like brush strip extends from one end side of the brush roller towards the middle position of the brush roller and crosses the center line; or, Along the axial direction of the brush roller, the sheet-like brush strip extends from one end side of the brush roller along the axial direction of the brush roller towards the other end side of the brush roller.

4. The roller brush according to claim 3, wherein, The brush roller has a first end side and a second end side located on both sides of the center line. Along the axial direction of the brush roller, one group of sheet-like brush strips extends from the first end side towards the middle position of the brush roller and crosses the center line, and the other group of sheet-like brush strips extends from the second end side towards the middle position of the brush roller and crosses the center line.

5. The roller brush according to any one of claims 1-4, wherein, The first brush strip extends spirally along the axial direction of the brush roller.

6. The roller brush according to any one of claims 1-5, wherein, In the axial direction of the brush roller, the spiral directions of any two adjacent first brush strips are opposite.

7. The roller brush according to any one of claims 1-6, wherein, A plurality of the second brush strips arranged in sequence along the axial direction of the brush roller are arranged in a row, and at least one row of the second brush strips and at least one of the first brush strips form a brush unit.

8. The roller brush according to claim 7, wherein, In the brush unit, the arrangement direction of one row of the second brush strips is the same as the spiral direction of the first brush strip in the brush unit.

9. The roller brush according to any one of claims 1-8, wherein, 2mm ≤ x2 - x1 ≤ 7mm.

10. The roller brush according to any one of claims 1-9, wherein, The outer peripheral wall of the second brush strip is any one of tangent continuous, curvature continuous, curvature change rate continuous, and curvature change rate of curvature change rate continuous.

11. A cleaning device, wherein, Comprising: Machine body; Rotary brush, the rotary brush being the rotary brush according to any one of claims 1-10, and the rotary brush being rotatably arranged on the machine body.

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