Roller brush and cleaning device

Abstract

A roller brush (10) and a cleaning device (100). The roller brush (10) comprises a roller body (11) and a plurality of brush strip groups (12). The plurality of brush strip groups (12) are arranged at intervals in the circumferential direction of the roller body (11), and each brush strip group (12) comprises at least one row of bristle strip (121) and at least one flexible rubber strip (122); in each brush strip group (12), the rubber strips (122) and the bristle strips (121) are alternately arranged side by side in the circumferential direction of the roller body (11); and the rubber strips (122) and the bristle strips (121) jointly bend and extend in the axial direction of the roller body (11). By providing the rubber strips (122) and the bristle strips (121) at the same time to form the brush strip groups (12), hair entanglement can be reduced while the cleaning effect is enhanced.

Description

Roller brushes and cleaning equipment

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 22, 2023, with application number 202311245939.X and invention name “Roller Brush and Cleaning Equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of cleaning technology, and in particular to a roller brush and cleaning equipment. Background Art

[0003] Cleaning equipment can sweep the floor with a roller brush, sweeping hair and debris from the floor into the cleaning equipment to keep the floor clean. However, when cleaning tufted carpets, hair, pet hair, and debris are easily caught in the carpet hair. The edge of the roller brush continuously slides across the carpet surface, removing some debris but failing to penetrate deep into the carpet tufts to separate the soft hair, resulting in an incomplete cleaning. Technical issues

[0004] Based on this, it is necessary to provide a roller brush to achieve thorough and in-depth cleaning. Technical Solutions

[0005] A roller brush comprises a roller body and a plurality of brush strip groups; the plurality of brush strip groups are arranged at intervals along the circumference of the roller body, and each of the brush strip groups comprises at least one row of bristle strips and at least one flexible rubber strip; in each of the brush strip groups, the rubber strips and the bristle strips are alternately arranged side by side along the circumference of the roller body; the rubber strips and the bristle strips are bent and extended together along the axial direction of the roller body.

[0006] It's understandable that by adding a bristle strip, the cleaning power of the surface being cleaned can be enhanced, while reducing hair entanglement, in addition to the rubber strip. Specifically, the rubber strip and bristle strip are mounted on a roller body, and the roller brush rotates so that the rubber strip and bristle strip alternately contact the surface being cleaned during cleaning, achieving a better cleaning effect. Furthermore, the rubber strip can clean the surface and support the cleaned hair, reducing hair entanglement.

[0007] In one embodiment, the height of at least part of the bristle strips is greater than the height of the rubber strips.

[0008] It can be understood that the height of the brush strip is higher than that of the rubber strip, so it can penetrate deep into the carpet and remove hair, debris and other garbage from the carpet.

[0009] In one embodiment, at least one row of the bristle strips includes a first bristle layer and a second bristle layer. In the brush strip group, the first bristle layer is close to the rubber strip, and the hardness of the first bristle layer is greater than that of the second bristle layer.

[0010] It is understandable that the first bristle layer can provide support for the rubber strip when the rubber strip is bent, so that the rubber strip can maintain the supporting effect on the hair as much as possible and reduce the entanglement of the hair.

[0011] In one embodiment, the bristle density of the first bristle layer is not greater than the bristle density of the second bristle layer, and the wire diameter of the bristles of the first bristle layer is not less than the wire diameter of the bristles of the second bristle layer.

[0012] It is understandable that the density of the first bristle layer is relatively low to reduce hair entanglement, and the wire diameter of the first bristle layer is relatively large to increase hardness and improve support effect.

[0013] In one embodiment, one end of the roller brush along its own axis is defined as a driving end, and the other end is defined as a driven end; along the axis of the roller body, each brush strip group extends spirally from the driven end toward the driving end.

[0014] It is understandable that the spiral extension can make the hair slide from the starting end of the spiral toward the end of the spiral, that is, the hair can slide from the driven end toward the driving end, so that the hair is concentrated on the driving end when the roller brush rotates, which is convenient for centralized cleaning.

[0015] In one embodiment, the rubber strip at the driving end is provided with a first tapered structure, and the first tapered structure tapers along the axial direction of the roller body in a direction away from the driven end.

[0016] It is understandable that the provision of the first tapered structure at the driving end of the rubber strip can further promote the hair to slide toward the end of the driving end, which is more conducive to centralized cleaning. At the same time, it can also reduce friction with the carpet, which is conducive to protecting the driving end.

[0017] In one embodiment, the roller brush further includes an end cover, which is mounted on the driving end, and a plurality of pressing portions are extended from the end cover, and the plurality of pressing portions are arranged at intervals along the circumference of the end cover; the rubber strip is folded to form the first tapered structure and is pressed between the pressing portion and the roller body.

[0018] It is understandable that the end cap can fix and compress the rubber strip through the pressing portion, and fold the rubber strip to form the first tapered structure.

[0019] In one embodiment, the pressing portion is configured as a second tapered structure, and the second tapered structure is configured to be tapered along the axial direction of the roller body toward the driven end.

[0020] It can be understood that setting the pressing portion as the second tapered structure further promotes the hair to slide down along the tapered direction, which is beneficial for concentrated cleaning of the hair.

[0021] In one embodiment, the roller body is constructed with multiple first mounting grooves and multiple second mounting grooves, and the multiple first mounting grooves and the multiple second mounting grooves are respectively arranged at intervals along the circumference of the roller body; the rubber strip is installed in the first mounting groove, and the brush strip is installed in the second mounting groove; there is a gap between the rubber strip located at the driving end and the bottom of the first mounting groove.

[0022] It is understood that the first mounting groove can be provided to limit the installation position of the rubber strip, and the second mounting groove can be provided to limit the installation position of the bristle strip. At the same time, a gap is provided between the rubber strip and the bottom of the first mounting groove at the driving end so that the rubber strip has a rearward floating amount when mated with the end cap, avoiding over-tightening of the press-fit and protecting the rubber strip.

[0023] In one embodiment, in each brush strip group, any adjacent bristle strips and rubber strips are arranged in parallel or relatively inclined; along the circumference of the roller body, the distance between the top of each bristle strip and the top of the rubber strip is not greater than 15 mm.

[0024] It's understandable that parallel placement of the bristle strips and rubber strips facilitates installation. Arranging the bristle strips and rubber strips at a relative angle can reduce the distance between their tops, thus minimizing hair entanglement. Furthermore, by ensuring the top distance between the two is no greater than 15 mm, the rubber strips adjacent to the bristle strips can effectively support the hairs in the bristle strips, preventing hair from penetrating the bottom of the bristle strips and becoming entangled. Furthermore, the bristle strips can support the rubber strips when they deform, minimizing deformation.

[0025] In one embodiment, the line connecting the end of any one of the bristle strip and the rubber strip away from one end of the roller body and the center of the roller body is defined as a first straight line, and the straight line corresponding to the first straight line in the length direction of the bristle strip or the rubber strip is defined as a second straight line, and the angle between the first straight line and the second straight line is in the range of 0° to 45°.

[0026] It is understandable that this arrangement ensures that the bristle strips and the rubber strips can face the cleaned surface during cleaning so as to perform the cleaning function normally.

[0027] The present application also provides a cleaning device, which includes a driving member, a combing structure and the above-mentioned roller brush; one end of the roller brush connected to the driving member is defined as a driving end, and the other end of the roller brush is defined as a driven end; the combing structure includes a plurality of comb teeth arranged at intervals along the axial direction of the roller brush, and each of the comb teeth is used to remove hair on the roller brush.

[0028] It is understandable that the driving member can provide power for the rotation of the roller brush to achieve the cleaning of the roller brush. The combing structure can cooperate with the roller brush through the comb teeth to remove the hair on the roller brush and reduce the entanglement of the hair on the roller brush.

[0029] In one embodiment, the cleaning device includes a hair-blocking end cover, which is detachably connected to the driving end of the roller brush.

[0030] It is understandable that the hair-blocking end cap can prevent hair from entering other structures of the cleaning device, and the detachable setting makes it easy for the user to directly remove the hair-blocking end cap for cleaning.

[0031] In one embodiment, along the axial direction of the roller body, a stop groove is provided at one end of the hair-blocking end cover away from the roller body, and the stop groove is recessed along the radial direction of the hair-blocking end cover and extends along the circumference of the hair-blocking end cover.

[0032] It is understandable that the setting of the stop groove can make the hairs that slide to the hair-blocking end cover be concentrated and restricted in the stop groove, so as to protect the normal operation of other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] FIG1 is a schematic structural diagram of a roller brush provided in this application;

[0035] FIG2 is a side view of the roller brush provided in the present application;

[0036] FIG3 is a cross-sectional view of the roller brush provided in the present application;

[0037] FIG4 is a front view of the roller brush provided in this application;

[0038] FIG5 is a transverse cross-sectional view of the cleaning device provided by the present application;

[0039] FIG6 is a longitudinal cross-sectional view of the cleaning device provided by the present application;

[0040] FIG7 is a schematic structural diagram of the hair retaining end cover of the cleaning device provided in the present application.

[0041] Figure markings: 100, cleaning device; 1001, air inlet; 1002, main air intake; 10, roller brush; 101, driving end; 102, driven end; 103, gap; 11, roller body; 111, first mounting groove; 112, second mounting groove; 12, brush strip group; 121, bristle strip; 1211, first bristle layer; 1212, second bristle layer; 122, rubber strip; 1221, first tapered structure; 13, end cover; 131, pressing part; 20, driving member; 30, combing structure; 31, comb teeth; 40, hair stop end cover; 41, stop groove; 50, transmission assembly; 51, first pulley; 52, synchronous belt; 53, second pulley; 60, buffer pad. Modes for Carrying Out the Invention

[0042] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0043] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0044] Furthermore, 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0045] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0046] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the relevant listed items.

[0047] Please refer to Figures 1 to 4. The present application provides a roller brush 10, which includes a roller body 11 and a plurality of brush strip groups 12; the plurality of brush strip groups 12 are arranged at intervals along the circumference of the roller body 11, and each brush strip group 12 includes at least one row of bristle strips 121 and at least one rubber strip 122; in each brush strip group 12, the rubber strip 122 and the bristle strip 121 are alternately arranged side by side along the circumference of the roller body 11; the rubber strip 122 and the bristle strip 121 are bent and extended together along the axial direction of the roller body 11.

[0048] In this way, the arrangement of multiple brush bar groups 12 enhances the cleaning effect. The rotation of the roller body 11 allows the multiple brush bar groups 12 to alternately contact and clean the surface being cleaned. During the cleaning process, each brush bar group 12 has at least one row of bristle strips 121 and at least one flexible rubber strip 122. The rubber strip 122 can rub against the surface being cleaned to remove hair and other debris. At the same time, the rubber strip 122 also supports the hair, reducing the degree to which hair is embedded in the bristle strip 121, facilitating the hair to slide along the curved direction of the brush bar group 12, and enhancing the anti-entanglement effect on the hair. The bristle strip 121 can rub the surface being cleaned with multiple bristles on the basis of the rubber strip 122, so as to remove fine debris such as hair and enhance the cleaning effect. Furthermore, in each brush bar group 12, the bristle strip 121 can support the rubber strip 122 when close to the rubber strip 122, thereby ensuring the support effect of the rubber strip 122 on the hair. In summary, by providing the bristle strip 121 and the rubber strip 122 at the same time, it is possible to achieve an anti-entanglement effect of reducing hair while achieving deep cleaning.

[0049] In some embodiments, the roller brush 10 includes three brush bar groups 12, which are spaced apart circumferentially along the roller brush 10 to alternately clean the surface being cleaned, thereby ensuring a consistent cleaning frequency and cleaning effectiveness. In other embodiments, the roller brush 10 may include two, four, or other brush bar groups 12, depending on the dimensions of the roller body 11 and the brush bar groups 12, as well as the specific operating conditions, and is not specifically limited herein.

[0050] As a further embodiment, the height of at least part of the bristle strip 121 is greater than the height of the rubber strip 122. In this way, the bristle strip 121 can penetrate into the cleaned surface for cleaning, and remove the hair hidden deep in the cleaned surface, so as to achieve deep cleaning.

[0051] In a specific embodiment, at least one row of bristle strips 121 includes a first bristle layer 1211 and a second bristle layer 1212. In the brush strip assembly 12, the first bristle layer 1211 is close to the rubber strip 122, and the hardness of the first bristle layer 1211 is greater than that of the second bristle layer 1212. In this way, the first bristle layer 1211 is close to the rubber strip 122 and has a greater hardness, which can provide effective support when the rubber strip 122 bends, so that the rubber strip 122 can quickly recover after bending to continue effective cleaning. For example, the bristles of the first bristle layer 1211 can be made of nylon filaments, and the bristles of the second bristle layer 1212 can be made of soft velvet. The above is only an example and is not a specific limitation.

[0052] In actual use, along the rotation direction of the roller body 11, in each brush bar group 12, the rubber strip 122 can be placed before the bristle strip 121, that is, the rubber strip 122 first contacts the surface to be cleaned. The rubber strip 122 can cover the root of the bristle strip 121, which is conducive to cleaning hair through the top of the bristle strip 121. The rubber strip 122 also supports the cleaned hair, preventing the hair from directly contacting the root of the bristle strip 121, thereby reducing hair entanglement. In other embodiments, along the rotation direction of the roller body 11, in each brush bar group 12, the bristle strip 121 can also be placed before the rubber strip 122, that is, the bristle strip 121 first contacts the surface to be cleaned, so that the bristle strip 121 can completely remove the hair, which is conducive to enhancing the cleaning effect. The specific selection should be based on the actual working conditions.

[0053] As shown in Figure 1, in an optional embodiment, one end of the roller brush 10 along its own axis is defined as the driving end 101, and the other end is defined as the driven end 102; the rubber strip 122 located at the driving end 101 is equipped with a first tapered structure 1221, and the first tapered structure 1221 is tapered along the axis of the roller body 11 in a direction away from the driven end 102. Specifically, the portion of the driving end 101 close to the driven end 102 is defined as the tail of the driving end 101, and the portion of the driving end 101 away from the driven end 102 is defined as the head of the driving end 101. The first tapered structure 1221 is tapered along the axis of the roller body 11 from the tail of the driving end 101 toward the head of the driving end 101. Specifically, the starting point of the tapering of the first tapered structure 1221 along the axis of the roller body 11 is defined as the tail of the driving end 101.

[0054] Thus, in actual use, the driving end 101 of the roller brush 10 is connected to the driving member 20. The provision of the first tapered structure 1221 allows hair to slide along the tapered direction, facilitating the collection of hair at the head of the driving end 101 for subsequent centralized cleaning. In some embodiments, the combing structure 30 is required to clean the hair on the roller brush 10. The comb teeth 31 of the combing structure 30 can comb the hair off. The provision of the first tapered structure 1221 can avoid being struck by the combing structure 30 and reduce friction with the surface being cleaned, thereby protecting the driving end 101 of the rubber strip 122.

[0055] As shown in Figure 1, in a further embodiment, the roller brush 10 also includes an end cap 13, which is mounted on the driving end 101. The end cap 13 extends with a plurality of pressing portions 131, and the plurality of pressing portions 131 are arranged at intervals along the circumference of the end cap 13; the rubber strip 122 is folded to form a first tapered structure 1221 and is pressed between the pressing portion 131 and the roller body 11. In this way, the end cap 13 can press one end of the rubber strip 122 onto the roller body 11 through the pressing portion 131, thereby fixing the rubber strip 122 and preventing the rubber strip 122 from sliding. During the press-fitting process, the rubber strip 122 is folded and then press-fitted to form the above-mentioned first tapered structure 1221. During the actual press-fitting process, the pressing length of the pressing portion 131 on the rubber strip 122 is not less than 5 mm to ensure compression and prevent the rubber strip 122 from jumping out. Exemplarily, the compression length of the compression portion 131 on the rubber strip 122 is set to 5mm, 10mm or 20mm. In addition, the end cap 13 is connected to the roller body 11 in a detachable connection, such as a snap connection, so that the end cap 13 can be removed at any time to clean the hair wrapped around the driving end 101.

[0056] More specifically, the outer layer of the rubber strip 122 is set to cloth, and the inner layer is set to colloid. The cloth wraps the colloid to protect it. The outer surface where the cloth is located is the cloth-wrapped surface. The cloth-wrapped surface of the rubber strip 122 is matched with the inner side of the pressing part 131 to ensure that the edge of the end cover 13 will not be quickly worn out. The top edge of the cloth should be 0 to 1 mm higher than the colloid, for example, 0.2 mm, 0.5 mm or 1 mm. The hardness of the rubber strip 122 is preferably 20 to 60°, for example, 20°, 30° or 60°. The material of the cloth is preferably nylon or polyester with a high weaving density of 0.3 to 0.4 mm thick, for example, the thickness can be 0.3 mm, 0.35 mm or 0.4 mm.

[0057] As shown in Figure 1, in a further embodiment, the pressing portion 131 is configured as a second tapered structure that tapers axially along the roller body 11 toward the driven end 102. This arrangement allows hair to slide along the tapering direction of the second tapered structure, concentrating the hair on the driving end 101. The second tapered structure and the first tapered structure 1221 together form an annular groove extending circumferentially along the roller body 11. Hair is located at the bottom of the groove, facilitating cleaning.

[0058] As shown in Figure 2, in a specific embodiment, the roller body 11 is constructed with a plurality of first mounting grooves 111 and a plurality of second mounting grooves 112, and the plurality of first mounting grooves 111 and the plurality of second mounting grooves 112 are respectively arranged at intervals along the circumference of the roller body 11; the rubber strip 122 is installed in the first mounting groove 111, and the brush strip 121 is installed in the second mounting groove 112; there is a gap 103 between the rubber strip 122 located at the driving end 101 and the bottom of the first mounting groove 111, and the rubber strip 122 located at the driven end 102 is in contact with the bottom of the first mounting groove 111.

[0059] In this way, the first mounting groove 111 is provided to facilitate the installation of the rubber strip 122, and the second mounting groove 112 is provided to facilitate the installation of the bristle strip 121. Furthermore, a gap 103 is provided between the rubber strip 122 at the driving end 101 and the bottom of the first mounting groove 111, so that there is a certain floating margin between the rubber strip 122 and the first mounting groove 111. This is beneficial for the rubber strip 122 to float within the first mounting groove 111 when the rubber strip 122 is folded and pressed, which helps to reduce stress concentration, so that the rubber strip 122 is not pressed too tightly, and has a protective effect on the rubber strip 122. At the same time, this arrangement can also allow the rubber strip 122 at the driving end 101 to float backward when it contacts the surface to be cleaned, which helps to reduce friction and thus protect the rubber strip 122.

[0060] In one specific embodiment, the rubber strip 122 can be thinner at one end along its length and mounted at the driving end 101, thereby creating a gap 103 between the rubber strip 122 at the driving end 101 and the bottom of the first mounting groove 111. In another specific embodiment, the first mounting groove 111 can be deeper at the driving end 101, thereby creating a gap 103 between the rubber strip 122 and the bottom of the first mounting groove 111 at the driving end 101.

[0061] As shown in Figures 1 to 4, in a further embodiment, each brush strip assembly 12 extends in a spiral shape from the driven end 102 toward the driving end 101 along the axial direction of the roller body 11. This allows hair to slide along the spiral direction. Since the driven end 102 is the starting end of the spiral and the driving end 101 is the end of the spiral, the hair slides toward the driving end 101, which helps to concentrate the hair at the driving end 101 for centralized cleaning. Specifically, a stopper can be provided at the starting end of the spiral to secure the rubber strip 122 and prevent it from moving along the spiral direction toward the driving end 101.

[0062] As shown in FIG2 , in a specific embodiment, the rubber strip 122 includes a first extension section and a second extension section, which are integrated and arranged at an angle to form a T-shaped structure. The corresponding first mounting groove 111 is also arranged in a T-shape. The first extension section is installed at the bottom of the first mounting groove 111, and the second extension section extends out of the first mounting groove 111 for cleaning. A rounded corner or chamfer should be provided at the connection between the first extension section and the second extension section to reduce stress concentration and avoid tearing at the connection. Correspondingly, the bristle strip 121 and the second mounting groove 112 can also be arranged in a T-shape, with the root of each bristle fixed to a bearing structure, the bearing structure is installed at the bottom of the second mounting groove 112, and the bristles extend out of the second mounting groove 112 for cleaning.

[0063] As shown in Figure 2, in a specific embodiment, the brush bar assembly 12 has a helical angle α. Taking the rubber strip 122 in the brush bar assembly 12 as an example, the angle occupied by the projected profile of one rubber strip 122 along the axial direction of the roller body 11 along the circumferential direction of the roller body 11 is the helical angle α, and 90°≤α<180°. This ensures that the brush bar assembly 12 can form a larger spiral, ensuring that the hair can slide along the spiral direction. At the same time, when the roller brush 10 cooperates with the combing structure 30, the length of the portion of the rubber strip 122 that is hit by a single blow from the combing structure 30 can also be reduced, thereby reducing the impact force of the combing structure 30 on the rubber strip 122. For example, α = 90°, 105°, or 130°. In addition, as shown in Figure 4, the brush strip group 12 also has a helix angle β. Taking the rubber strip 122 as an example, the helix angle β is the angle between the tangent of the rubber strip 122 when it is spirally wound and the radial direction of the roller body 11, 0°<β<90°, for example, α=30°, 45° or 60°.

[0064] As shown in Figure 2, in a preferred embodiment, the radius of gyration of the bristle strip 121 is a, and the radius of gyration of the rubber strip 122 is b, satisfying the following: 0mm < ab ≤ 10mm. In other words, the end of the bristle strip 121 facing away from the roller body 11 in the radial direction of the roller body 11 is higher than the end of the rubber strip 122 facing away from the roller body 11 in the radial direction of the roller body 11. As the roller body 11 rotates, the bristle strip 121 can clean more deeply, removing hair that is deeply embedded. In specific embodiments, ab = 1mm, 6mm, or 10cm.

[0065] In a further embodiment, the radius of gyration of the bristle strip 121 is a, and the radius of gyration of the rubber strip 122 is b, and the following relationship is satisfied: 1 mm ≤ ab ≤ 5 mm. For example, ab = 1 mm, 3 mm, or 5 mm.

[0066] As shown in Figure 3, in a preferred embodiment, in each brush strip assembly 12, any adjacent bristle strips 121 and rubber strips 122 are arranged at an angle relative to each other. That is, the distance between the top of the bristle strip 121 and the top of the rubber strip 122 is smaller than the distance between the bottom of the bristle strip 121 and the bottom of the rubber strip 122. This arrangement prevents hair from penetrating the bottom of the bristle strip 121, thereby reducing hair entanglement. In other embodiments, in each brush strip assembly 12, any adjacent bristle strips 121 and rubber strips 122 can be arranged parallel to each other.

[0067] In a preferred embodiment, along the circumference of the roller body 11, the distance between the top of the bristle strip 121 and the top of the rubber strip 122 in each brush strip group 12 is no more than 15 mm. In this way, since the first bristle layer 1211 is arranged close to the rubber strip 122, the distance between the first bristle layer 1211 and the rubber strip 122 is no more than 15 mm. The small distance between the two can ensure the support effect of the rubber strip 122 on the hair, prevent the hair from being embedded deep in the bristles of the first bristle layer 1211, and ensure the anti-entanglement effect. At the same time, it can also ensure the effective support of the first bristle layer 1211 on the rubber strip 122, so that the rubber strip 122 can be quickly reset after bending and deformation, so as to continue cleaning, and also reduce the vibration of the soft rubber strip 122, quickly smooth the vibration amplitude, shorten the occurrence time of noise, and achieve shock absorption and noise reduction. Exemplarily, the distance between the first bristle layer 1211 and the rubber strip 122 in each brush strip group 12 is set to 2 mm, 5 mm or 15 mm. In some cases, in each brush strip group 12 , the bristles in the first bristle layer 1211 may be arranged alternately with the rubber strips 122 .

[0068] In a preferred embodiment, the bristle density of the first bristle layer 1211 is less than that of the second bristle layer 1212, and the bristle wire diameter of the first bristle layer 1211 is greater than that of the second bristle layer 1212. As a result, due to the relatively high hardness of the first bristle layer 1211, once entangled with hair, the entanglement tends to become tighter and tighter. Therefore, the bristles in the first bristle layer 1211 are arranged relatively sparsely, which can ensure that while effectively supporting the rubber strips 122 in the same brush strip group 12, the entanglement of hair on the first bristle layer 1211 is reduced, thereby promoting the anti-entanglement effect on the hair. At the same time, the bristle wire diameter of the first bristle layer 1211 is relatively large, which can also enhance its own hardness and improve the support effect on the rubber strips 122. Of course, this application does not exclude the situation where the bristle density of the first bristle layer 1211 and the bristle density of the second bristle layer 1212 are set to the same density, nor does it exclude the situation where the bristle wire diameter of the first bristle layer 1211 and the wire diameter of the second bristle layer 1212 are set to the same wire diameter.

[0069] In a specific embodiment, the bristle density of the first bristle layer 1211 is set to a range of 10 to 100 bristles / cm, and the bristle density of the second bristle layer 1212 is set to a range of 400 to 2000 bristles / cm. The bristle diameter of the first bristle layer 1211 is set to a range of 0.1 to 0.25 mm, and the bristle diameter of the second bristle layer 1212 is set to a range of 0.05 to 0.12 mm. For example, the bristle density of the first bristle layer 1211 can be 10 bristles / cm, 30 bristles / cm, or 50 bristles / cm; the bristle density of the second bristle layer 1212 can be 400 bristles / cm, 1000 bristles / cm, or 2000 bristles / cm. The bristle diameter of the first bristle layer 1211 can be 0.1 mm, 0.15 mm, or 0.25 mm; the bristle diameter of the second bristle layer 1212 can be 0.05 mm, 0.08 mm, or 0.12 mm.

[0070] Furthermore, the line connecting the end of any one of the bristle strip 121 and the rubber strip 122 away from one end of the roller body 11 and the center of the roller body 11 is defined as a first straight line, and the straight line corresponding to the first straight line in the length direction of the bristle strip 121 or the rubber strip 122 is defined as a second straight line, and the angle φ between the first straight line and the second straight line ranges from 0° to 45° (excluding 0°). This setting can ensure that the rubber strip 122 and the bristle strip 121 are both facing the cleaned surface during cleaning, so that the rubber strip 122 and the bristle strip 121 can contact the cleaned surface and achieve normal cleaning. For example, the angle φ between the first straight line and the second straight line can be set to 20°, 30° or 45°.

[0071] As shown in Figure 3, the rubber strip 122 is used as an example to further illustrate that, as shown in the figure, the first straight line is the line connecting the two points MO, and the second straight line is the line connecting MN. When the roller brush 10 rotates, it has the lowest point of the rotation circle, that is, the point closest to the surface to be cleaned. Along the rotation direction of the roller brush 10, if point M reaches the lowest point before point N, it indicates that the angle φ between the first straight line and the second straight line is the active angle. At this time, the bristle strip 121 and the rubber strip 122 are respectively inserted into the tufts of hair on the surface to be cleaned, exerting a large force, which can bring out hair or garbage deep inside, and has a strong cleaning effect. At this time, the load of the driving member 20 is large, which is suitable for situations where there is a large demand for cleaning and the power margin of the driving member 20 is sufficient. Along the rotation direction of the roller brush 10, if point M reaches the lowest point after point N, it indicates that the angle φ between the first straight line and the second straight line is a passive angle. At this time, the bristle strip 121 and the rubber strip 122 slide over the cleaned surface, and the force exerted on the cleaned surface is small. The cleanliness is not as good as the state at the active angle, but the load on the driving part 20 is small, which is suitable for situations where the cleaning demand is small or the power of the driving part 20 is insufficient.

[0072] As shown in Figures 5 to 7, the present application also provides a cleaning device 100. The cleaning device 100 includes a driving member 20, a combing structure 30, and the aforementioned roller brush 10; one end of the roller brush 10 connected to the driving member 20 is defined as a driving end 101, and the other end of the roller brush 10 is defined as a driven end 102; the combing structure 30 includes a plurality of comb teeth 31 arranged at intervals along the axial direction of the roller brush 10, each comb tooth 31 being used to remove hair from the roller brush 10.

[0073] In this way, the driving member 20 can provide power for the rotation of the roller brush 10. During the rotation of the roller brush 10, the brush bar group 12 on the roller brush 10 first cleans the surface to be cleaned, and sweeps the dust, debris, hair, etc. on the cleaned surface into the cleaning device 100. Then, the brush bar group 12 cooperates with the combing structure 30, and the comb teeth 31 of the combing structure 30 can comb off the hair on the brush bar group 12 to reduce the entanglement of the hair.

[0074] As shown in FIG5 , in some embodiments, the cleaning device 100 further includes a transmission assembly 50, which is connected between the driving member 20 and the roller body 11 of the roller brush 10 to transmit the power of the driving member 20 to the roller body 11, thereby rotating the roller body 11. In a specific embodiment, the driving member 20 is configured as a motor, and the transmission assembly 50 includes a first pulley 51, a second pulley 53, and a synchronous belt 52. The motor shaft passes through the first pulley 51 and transmits power to the first pulley 51. The first pulley 51 transmits power to the second pulley 53 through the synchronous belt 52. The second pulley 53 is connected to the input shaft of the roller body 11 to transmit power to the roller body 11, thereby driving the roller body 11 to rotate.

[0075] As shown in Figures 5 and 7, in a further embodiment, the cleaning device 100 includes a hair-blocking end cover 40, and the driving end 101 of the roller brush 10 is equipped with the hair-blocking end cover 40, and the hair-blocking end cover 40 is detachably connected to the driving end 101 of the roller brush 10. Wherein, the hair-blocking end cover 40 located at the driving end 101 is arranged between the end cover 13 and the second pulley 53. In this way, the hair-blocking end cover 40 can block the hair, prevent the hair from entering the driving member 20 and the transmission member, and avoid the hair from interfering with other parts. The detachable connection makes it convenient for the user to manually remove the hair-blocking end cover 40 for hair cleaning, and the operation is simple. The gap between the edge of the hair-blocking end cover 40 at the driving end 101 and the inner wall of the casing of the cleaning device 100 does not exceed 0.2mm, so as to effectively prevent hair from entering and causing stalling or other malfunctions. In other embodiments, the driven end 102 is also installed with a hair blocking end cover 40 to prevent hair from gathering and entanglement at the driven end 102 .

[0076] As shown in Figures 5 and 7, in a specific embodiment, a stop groove 41 is provided at one end of the hair-blocking end cap 40 away from the roller body 11 along the axial direction of the roller body 11. The stop groove 41 is recessed in the radial direction of the hair-blocking end cap 40 and extends circumferentially along the hair-blocking end cap 40. In this way, when hair slides along the surface of the hair-blocking end cap 40 toward the transmission assembly 50, the stop groove 41 can limit the movement of the hair, causing the hair to be stuck in the stop groove 41, thereby preventing the hair from entering the transmission assembly 50, thereby facilitating the normal operation of the transmission assembly 50 and the driving member 20.

[0077] In an optional embodiment, the interference between each comb tooth 31 and the rubber strip 122 ranges from 1mm to 3.5mm, and the interference between each comb tooth 31 and the bristle strip 121 ranges from 1mm to 6mm. The interference is the length dimension of the contact between the comb teeth 31 and the rubber strip 122 or the bristle strip 121. In this way, it can be ensured that the comb teeth 31 can clean the hair on the rubber strip 122 and the bristle strip 121. At the same time, it also reduces the degree of impact of the comb teeth 31 on the rubber strip 122, which helps to reduce vibration and noise. Specifically, the interference between each comb tooth 31 and the rubber strip 122 is 1mm, 2mm or 3.5mm; the interference between each comb tooth 31 and the bristle strip 121 is 1mm, 4mm or 6mm.

[0078] As shown in Figure 5, in a further embodiment, along the radial direction of the roller body 11, the length of the comb teeth 31 near the drive end 101 of the roller body 11 is greater than the length of the comb teeth 31 facing other parts of the roller body 11. This is because the rubber strip 122 at the drive end 101 is provided with a first tapered structure 1221. The surface of the first tapered structure 1221 is at a greater distance from the tooth ends of the comb teeth 31. Therefore, the longer comb teeth 31 facing the drive end 101 of the roller body 11 facilitate hair cleaning at the drive end 101 and prevent hair from being entangled in the drive end 101. Specifically, the minimum distance between the comb teeth 31 at the drive end 101 and the end cap 13 is less than or equal to 0.3 mm to ensure the comb teeth 31 effectively clean hair. Exemplarily, the distance between the comb teeth 31 at the drive end 101 and the end cap 13 is 0.1 mm, 0.2 mm, or 0.3 mm.

[0079] As shown in Figure 6, in a specific embodiment, the cleaning device 100 is provided with an air inlet 1001 at the bottom of the roller brush 10 along the first direction; the cleaning device 100 is constructed with a dust collecting chamber, and a main air intake 1002 connected to the dust collecting chamber is provided between the dust collecting chamber and the roller brush 10, and the air inlet 1001 is connected to the main air intake 1002.

[0080] Thus, the air inlet 1001 facilitates the entry of air from the bottom of the roller brush 10, and a power source is provided at the main air inlet 1002 to draw in air. When the roller brush 10 cleans the surface being cleaned, the swept debris can be sucked into the dust collection chamber along with the air under the action of suction. During the cleaning process, hair sliding down the spiral direction of the brush bar assembly 12 can be sucked into the dust collection chamber as it slides. Based on this, the rotation speed of the roller brush 10 can be appropriately reduced. At this time, the sliding speed of the hair is relatively slowed down. When the hair slides in the spiral direction of the brush bar group 12, it can be sucked into the dust collection chamber during the sliding process, which is beneficial to reducing the accumulation and entanglement of the hair. At the same time, the reduction in the rotation speed of the roller brush 10 can reduce the force and frequency of the combing structure 30 hitting the rubber strip 122, which is beneficial to shock absorption and noise reduction and protect the rubber strip 122. The corresponding motor speed can be set between 1200 and 3500 rpm. For example, the motor speed can be set to 1200 rpm, 2400 rpm or 3500 rpm, depending on the actual working conditions. A buffer pad 60 can also be provided between the combing structure 30 and the main air inlet 1002 to further reduce shock and noise. In addition, when the combing structure 30 combs the brush bar group 12, the combed hair can also be sucked into the dust collection chamber. Specifically, the combing structure 30 is arranged between the roller brush 10 and the main air inlet 1002. In the direction of gravity, the combing structure 30 is slightly higher than the central axis of the roller brush 10. Through the cooperation of the roller brush 10 and the suction force, the surface being cleaned can be thoroughly cleaned.

[0081] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of patent protection for the present application shall be determined by the appended claims.

Claims

1. A roller brush, characterized in that: The roller brush comprises: Roller body (11); A plurality of brush strip groups (12), wherein the plurality of brush strip groups (12) are arranged at intervals along the circumference of the roller body (11), and each of the brush strip groups (12) comprises at least one row of bristle strips (121) and at least one rubber strip (122); In each brush strip group (12), the rubber strip (122) and the bristle strip (121) are arranged alternately and side by side along the circumference of the roller body (11); the rubber strip (122) and the bristle strip (121) are bent and extended together along the axial direction of the roller body (11).

2. The roller brush according to claim 1, characterized in that: The height of at least part of the bristle strip (121) is greater than the height of the rubber strip (122).

3. The roller brush according to claim 1, characterized in that: At least one row of the bristle strips (121) comprises a first bristle layer (1211) and a second bristle layer (1212); in the brush strip group (12), the first bristle layer (1211) is close to the rubber strip (122), and the hardness of the first bristle layer (1211) is greater than that of the second bristle layer (1212).

4. The roller brush according to claim 3, characterized in that: The bristle density of the first bristle layer (1211) is not greater than the bristle density of the second bristle layer (1212), and the wire diameter of the bristles of the first bristle layer (1211) is not less than the wire diameter of the bristles of the second bristle layer (1212).

5. The roller brush according to claim 1, characterized in that: One end of the roller brush along its own axial direction is defined as a driving end (101), and the other end is defined as a driven end (102); along the axial direction of the roller body (11), each brush strip group (12) extends in a spiral shape from the driven end (102) toward the driving end (101).

6. The roller brush according to claim 5, characterized in that: The rubber strip (122) located at the driving end (101) is provided with a first tapered structure (1221), and the first tapered structure (1221) is tapered along the axial direction of the roller body (11) in a direction away from the driven end (102).

7. The roller brush according to claim 6, characterized in that: The roller brush further comprises an end cover (13), wherein the end cover (13) is mounted on the driving end (101), and a plurality of clamping portions (131) are extended from the end cover (13), and the plurality of clamping portions (131) are arranged at intervals along the circumference of the end cover (13); the rubber strip (122) is folded to form the first tapered structure (1221), and is clamped between the clamping portion (131) and the roller body (11).

8. The roller brush according to claim 7, characterized in that: The pressing portion (131) is configured as a second tapered structure, and the second tapered structure is configured to be tapered along the axial direction of the roller body (11) toward the driven end (102).

9. The roller brush according to claim 5, characterized in that: The roller body (11) is configured with a plurality of first mounting grooves (111) and a plurality of second mounting grooves (112), wherein the plurality of first mounting grooves (111) and the plurality of second mounting grooves (112) are respectively arranged at intervals along the circumference of the roller body (11); The rubber strip (122) is installed in the first installation groove (111), and the bristle strip (121) is installed in the second installation groove (112); a gap (103) is provided between the rubber strip (122) located at the driving end (101) and the bottom of the first installation groove (111).

10. The roller brush according to claim 1, characterized in that: In each of the brush strip groups (12), any adjacent bristle strips (121) and rubber strips (122) are arranged in parallel or relatively inclined; along the circumference of the roller body (11), the distance between the top of each bristle strip (121) and the top of the rubber strip (122) is no more than 15 mm.

11. The roller brush according to claim 1, characterized in that: A line connecting the end of any one of the bristle strip (121) and the rubber strip (122) away from one end of the roller body (11) and the center of the roller body (11) is defined as a first straight line, and a straight line corresponding to the first straight line and in the length direction of the bristle strip (121) or the rubber strip (122) is defined as a second straight line, and an angle between the first straight line and the second straight line ranges from 0° to 45°.

12. A cleaning device, characterized in that: A driving member (20); The cleaning device comprises the roller brush (10) according to any one of claims 1 to 11, wherein one end of the roller brush (10) connected to the driving member (20) is defined as a driving end (101), and the other end of the roller brush (10) is defined as a driven end (102); and The combing structure (30) comprises a plurality of comb teeth (31) arranged at intervals along the axial direction of the roller brush (10), and each of the comb teeth (31) is used to remove hair on the roller brush (10).

13. The cleaning device according to claim 12, characterized in that The cleaning device comprises a hair-blocking end cover (40), and the hair-blocking end cover (40) is detachably connected to the driving end (101) of the roller brush (10).

14. The cleaning device according to claim 13, characterized in that A stop groove (41) is provided at one end of the hair-blocking end cover (40) away from the roller body (11) along the axial direction of the roller body (11); the stop groove (41) is recessed along the radial direction of the hair-blocking end cover (40) and extends along the circumferential direction of the hair-blocking end cover (40).

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