Rolling brush, rolling brush assembly, and cleaning device

Abstract

A rolling brush (10), a rolling brush assembly (100), and a cleaning device (1000). The rolling brush (10) comprises: a brush roller (11), wherein the two ends of the brush roller (11) in the axial direction are respectively a driving end (111) and a driven end (112); and at least two brush strips (12) and at least two first supporting strips (13) arranged on the brush roller (11), wherein the first supporting strips (13) and the brush strips (12) are alternately arranged in the circumferential direction of the brush roller (11); and in the direction from the driving end (111) to the driven end (112), the brush strips (12) and the first supporting strips (13) both obliquely extend in the circumferential direction of the brush roller (11). By arranging the brush strips (12), a cleaning function of the rolling brush (10) can be achieved; by arranging the first supporting strips (13), hair less likely gets tangled on the rolling brush (10), thereby reducing the frequency of cleaning the rolling brush (10) by a user in a using process; and when the hair gets tangled on the rolling brush (10), the first supporting strips (13) can support the hair, such that the user can conveniently clean the rolling brush, thereby enhancing the user experience.

Description

Roller brushes, roller brush assemblies 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 202311237267.8 and invention name “Roller brush, roller brush assembly and cleaning device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of household appliances, and in particular to a roller brush, a roller brush assembly and a cleaning device. Background Art

[0003] Cleaning equipment such as vacuum cleaners and sweeping robots are becoming more and more popular. Among them, the roller brush is an important component to achieve the cleaning effect. When users use cleaning equipment to disturb hygiene, hair is easily entangled on the roller brush, which will reduce the cleaning ability of the cleaning equipment. Users need to frequently maintain and clean the roller brush during use, and it is difficult to clean the hair entangled on the roller brush, which greatly reduces the user experience. Technical issues

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application is to propose a roller brush that can reduce hair entangled on the roller brush during use and facilitate users to clean hair on the roller brush, thereby improving the user experience. Technical Solutions

[0005] The present application also proposes a roller brush assembly having the above-mentioned roller brush.

[0006] The present application also proposes a cleaning device having the above-mentioned roller brush assembly.

[0007] According to the first aspect of the present application, the roller brush includes: a brush roller, wherein the two ends of the brush roller in the axial direction are respectively a driving end and a driven end; at least two brush strips and at least two first support strips are arranged on the brush roller, and the first support strips and the brush strips are alternately arranged in the circumferential direction of the brush roller, and in the direction from the driving end toward the driven end, the brush strips and the first support strips both extend obliquely along the circumference of the brush roller.

[0008] According to the roller brush of the first aspect of the present application, the cleaning function of the roller brush can be realized by setting a brush bar. By setting a first support bar, the first support bar can increase the winding circumference of the hair on the brush roller, and reduce the probability of the hair winding around the roller brush for more than one circle, thereby reducing the hair entangled on the roller brush during operation, reducing the frequency of the user cleaning the roller brush, and when the hair is entangled on the roller brush, the first support bar can support the hair, thereby facilitating the user to clean, thereby improving the user experience.

[0009] According to some embodiments of the present application, in the direction from the driving end to the driven end, the brush bar extends obliquely in the circumferential direction of the brush roller at an angle of 90°-180°.

[0010] According to some embodiments of the present application, the brush strip includes: a rubber strip body and a cloth covering layer, the rubber strip body extends from the driving end to the driven end, and the cloth covering layer at least covers the upstream side of the rubber strip body in the rotation direction of the brush roller.

[0011] According to some embodiments of the present application, the roller brush further includes: a second support bar, the second support bar being arranged on the circumferential surface of the brush roller, and extending obliquely along the circumference of the brush roller from the driving end toward the driven end, and the oblique extension direction of the second support bar is the same as the oblique extension direction of the brush bar, the number of the second support bars is multiple and corresponds one-to-one to the brush bars, and the brush bars are arranged on the corresponding second support bars.

[0012] According to some embodiments of the present application, the brush bar includes a radial extension portion and a circumferential extension portion, and the second support bar is provided with a fixing groove that is recessed radially inward along the brush roller, and the fixing groove passes through the second support bar along the length direction of the second support bar, and the circumferential extension portion and part of the radial extension portion are fitted in the fixing groove.

[0013] According to some embodiments of the present application, a concave air-avoiding groove is formed on a surface of the circumferential extension portion at the driving end facing the brush roller, and the air-avoiding groove extends along the length direction of the brush bar.

[0014] According to some embodiments of the present application, in a direction from the inside to the outside of the radial direction of the brush roller, a distance between two side surfaces of any one of the first support bar and the second support bar in the circumferential direction of the brush roller gradually decreases.

[0015] According to some embodiments of the present application, in the radial direction of the brush roller, the distance between the radial outer end of the first support bar and the central axis of the brush roller is a first height, and the distance between the radial outer end of the brush bar and the central axis of the brush roller is a second height, and the first height is smaller than the second height.

[0016] The roller brush assembly according to the second aspect of the present application includes: the roller brush according to the first aspect of the present application, a first end cover and a second end cover, the first end cover is provided with a mounting groove opening toward the roller brush, the driving end is inserted into the mounting groove, and one end of the first support bar and the brush bar both extend into the mounting groove, and the second end cover is connected to the driven end.

[0017] According to the roller brush assembly of the second aspect of the present application, by providing the roller brush according to the first aspect of the present application, the frequency of the user cleaning the roller brush assembly during use can be reduced, thereby improving the user experience.

[0018] According to some embodiments of the present application, at least one of the first end cover and the second end cover is detachably connected to the roller brush.

[0019] According to some embodiments of the present application, the first end cover includes an inner ring plate and an outer ring plate, the inner ring plate extends along the axis of the roller brush and extends in a ring shape around the axis of the roller brush, the outer ring plate is annular and is sleeved on the radial outside of the inner ring plate, and the mounting groove is formed between the inner ring plate and the outer ring plate.

[0020] According to some embodiments of the present application, the outer ring plate includes a plurality of connecting plate portions and a plurality of U-shaped plate portions, and the plurality of connecting plate portions and the plurality of U-shaped plate portions are alternately arranged in the circumferential direction of the roller brush, the opening of the U-shaped plate portion faces the axis of the roller brush, the connecting plate portion is connected between two adjacent U-shaped plate portions, and in the direction from the driving end toward the driven end, the connecting plate portion extends obliquely toward the axis of the roller brush to the outer surface of the brush roller.

[0021] According to some embodiments of the present application, one end of the brush strip is bent in a direction opposite to the rotation direction of the roller brush and then extends into the installation groove, and the bent portion of the brush strip abuts against the U-shaped plate portion.

[0022] According to the third aspect of the present application, the cleaning device includes: a shell, the shell is formed with a accommodating cavity; the roller brush assembly according to the second aspect of the present application, the roller brush assembly is arranged in the accommodating cavity.

[0023] According to the cleaning device of the third aspect of the present application, by setting the above-mentioned roller brush assembly according to the second aspect of the present application, the reliability of the cleaning device during use can be improved, and the frequency of cleaning the cleaning device during use by the user can be reduced, thereby improving the user experience.

[0024] According to some embodiments of the present application, the cleaning device also includes: a first bracket, which is provided with a first mating groove opening toward the roller brush; the roller brush assembly also includes: a third end cover, which is connected to the first end cover and is located on the side of the first end cover away from the roller brush, the third end cover is rotatably supported on the first bracket, and at least a portion of the third end cover is provided in the first mating groove.

[0025] According to some embodiments of the present application, a retaining rib is provided on one side of the inner wall of the third end cover facing the first mating groove, and the retaining rib extends in a ring shape around the axis of the roller brush and includes a first stop segment and a second stop segment, the first stop segment extends along the axis of the roller brush toward the bottom wall of the first mating groove, one end of the second stop segment is connected to one end of the first stop segment facing the bottom wall of the first mating groove, and the other end of the second stop segment extends radially outward along the roller brush.

[0026] 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

[0027] FIG1 is a cross-sectional view of a cleaning device according to an embodiment of the present application;

[0028] FIG2 is a cross-sectional view of the cleaning device shown in FIG1 from another angle;

[0029] FIG3 is a schematic diagram of a roller brush assembly according to an embodiment of the present application;

[0030] FIG4 is a schematic diagram of the roller brush assembly shown in FIG3 from another angle;

[0031] FIG5 is a cross-sectional view of the roller brush assembly shown in FIG4;

[0032] FIG6 is a schematic diagram of a roller brush according to an embodiment of the present application;

[0033] FIG7 is a schematic diagram of the brush bar shown in FIG6;

[0034] FIG8 is a schematic diagram of the third end cover shown in FIG1;

[0035] FIG9 is a cross-sectional view of the third end cap shown in FIG8;

[0036] FIG10 is a schematic diagram of the second end cover shown in FIG1;

[0037] FIG11 is an enlarged view of point A shown in FIG1 ;

[0038] FIG. 12 is an enlarged view of point B shown in FIG. 1 .

[0039] Reference numerals:

[0040] 1000. Cleaning equipment;

[0041] 100. Roller brush assembly;

[0042] 10. Roller brush; 11. Brush roller; 111. Driving end; 112. Driven end; 12. Brush strip; 121. Circumferential extension; 122. Radial extension; 123. Air-avoiding groove; 124. Stop structure; 13. First support strip; 14. Second support strip; 141. Fixing groove;

[0043] 20. First end cap; 21. Mounting groove; 22. Inner ring plate; 23. Outer ring plate; 231. U-shaped plate portion; 2311. First groove portion; 232. Connecting plate portion; 2321. Second groove portion;

[0044] 30. Second end cover; 31. Driven end bearing; 32. Snap-fit ​​structure;

[0045] 40. Third end cover; 41. Retaining rib; 411. First stop section; 412. Second stop section; 42. Drive end bearing;

[0046] 200, housing; 210, accommodating chamber;

[0047] 300, comb teeth; 310, tooth column; 320, first tooth column;

[0048] 400, first bracket; 410, first matching groove; 420, stop groove;

[0049] 500, second bracket; 510, second matching groove;

[0050] 600, driving motor; 610, driving belt; 620, driving pulley;

[0051] 700, dust suction port;

[0052] 800. Clean mouth. Modes for Carrying Out the Invention

[0053] The following describes in detail embodiments of the present application, examples of which 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 intended to be used to explain the present application, and should not be construed as limiting the present application.

[0054] The following describes a roller brush 10 according to an embodiment of the first aspect of the present application with reference to Figures 1 to 12.

[0055] As shown in FIG3-FIG7 , the roller brush 10 according to the embodiment of the first aspect of the present application includes: a brush roller 11 , a brush bar 12 and a first support bar 13 .

[0056] Specifically, the two ends of the brush roller 11 in the axial direction are a driving end 111 and a driven end 112, respectively. At least two brush strips 12 and at least two first support strips 13 are arranged on the brush roller 11. For example, there may be two, three or four brush strips 12, and there may be two, three or four first support strips 13. The first support strips 13 and the brush strips 12 are alternately arranged in the circumferential direction of the brush roller 11. In the direction from the driving end 111 toward the driven end 112 (for example, from left to right as shown in FIG3 ), the brush strips 12 and the first support strips 13 both extend obliquely along the circumference of the brush roller 11.

[0057] When the roller brush 10 is working, the brush roller 11 drives the brush bar 12 and the first support bar 13 to rotate, and the brush bar 12 contacts the ground of the area to be cleaned, thereby cleaning the ground of the area to be cleaned.

[0058] When there is hair-like garbage in the area to be cleaned, if the hair cannot be detached from the roller brush 10 in time during the process of the roller brush 10 cleaning the hair, and the hair is entangled on the roller brush 10 for more than one circle, as the roller brush 10 rotates, the hair may be entangled on the roller brush 10.

[0059] In this embodiment, the first support strips 13 and the brush strips 12 are alternately arranged in the circumferential direction of the brush roller 11. Thus, when hair is attached to the area between the two brush strips 12, the first support strips 13 can support the hair, thereby increasing the circumference of the hair wrapped around the roller brush 10 and reducing the probability of the hair being wrapped around the roller brush 10 for more than one circle, thereby making it less likely for the hair to be wrapped around the roller brush 10. For example, shorter hair will not be able to wrap completely around the roller brush 10 and will be directly swept away.

[0060] In addition, when hair is wrapped around the roller brush 10, the first support bar 13 can prop up the hair, making the gap between the hair and the brush roller 11 larger. In this way, the user can more easily find the fulcrum when cleaning the hair on the roller brush 10, making it easier for the user to clean.

[0061] According to the roller brush 10 of the first embodiment of the present application, the cleaning function of the roller brush 10 can be realized by setting the brush bar 12, and by setting the first support bar 13, the first support bar 13 can increase the winding circumference of the brush roller 11, and reduce the probability of hair winding around the roller brush 10 for more than one circle, so that the hair is not easily entangled on the roller brush 10, thereby reducing the frequency of cleaning the roller brush 10 during use by the user, and when hair is entangled on the roller brush 10, the first support bar 13 can support the hair, thereby facilitating cleaning by the user, thereby improving the user experience.

[0062] In some embodiments of the present application, the first support bar 13 and the brush roller 11 are integrally injection molded, thereby improving production efficiency, and the connection between the first support bar 13 and the brush roller 11 is more reliable, thereby improving the reliability of the roller brush 10 during operation.

[0063] In some embodiments of the present application, as shown in FIG6 , in the direction from the driving end 111 to the driven end 112, the angle a at which the brush strip 12 extends obliquely in the circumferential direction of the brush roller 11 is 90°-180°. For example, the angle a at which the brush strip 12 extends obliquely in the circumferential direction of the brush roller 11 can be 90°, 120°, 150°, or 180°. This ensures that the side of the brush strip 12 is in contact with the ground, thereby ensuring that the cleaning ability of the roller brush 10 meets the requirements of use. Furthermore, when the roller brush 10 is installed in the fixing groove 141 on the second support bar 14, the force exerted by the groove wall of the fixing groove 141 on the brush strip 12 is more evenly distributed, thereby preventing the brush strip 12 from deviating and collapsing onto the brush roller 11 during insertion into the fixing groove 141. Furthermore, during product design, the angle a at which the brush strip 12 extends obliquely in the circumferential direction of the brush roller 11 can be adjusted according to design requirements to meet more product design requirements.

[0064] In some embodiments of the present application, the number of brush bars 12 is three, the number of first support bars 13 is three, the brush bars 12 are evenly arranged in the circumferential direction of the brush roller 11, and the first support bars 13 and the brush bars 12 are alternately arranged in the circumferential direction of the brush roller 11. Thus, during the rotation of the roller brush 10, the three brush bars 12 can maintain dynamic balance, and can ensure that the cleaning ability of the roller brush 10 meets the use requirements. In addition, the manufacturing cost of the roller brush 10 is relatively low.

[0065] In some embodiments of the present application, the brush strip 12 includes: a rubber strip body and a cloth layer. The rubber strip body extends from the driving end 111 to the driven end 112. The cloth layer covers at least the upstream side of the rubber strip body in the rotational direction of the brush roller 11. In other words, the cloth layer contacts the ground when the brush roller 11 rotates. The surface of the rubber strip body is relatively flat, and hair has fewer attachment points on the rubber strip body, making it less likely to stick to the rubber strip body. When the brush strip 12 sweeps hair from the ground into the cleaning device 1000, the hair can easily leave the brush strip 12. The cloth layer has a better cleaning effect on the ground. Therefore, the cleaning ability of the roller brush 10 can be guaranteed, and the amount of hair entangled in the roller brush 10 during operation of the cleaning device 1000 can be reduced, thereby improving the user experience.

[0066] In some embodiments of the present application, the cloth layer is 0-1 mm higher than the main rubber strip in the axial direction of the brush roller 11. For example, the cloth layer may not be higher than the main rubber strip in the axial direction of the brush roller 11, or the cloth layer may be 0.4 mm, 0.6 mm, or 1 mm higher than the main rubber strip, thereby further ensuring the cleaning effect of the roller brush 10.

[0067] In some embodiments of the present application, the hardness of the rubber strip is 20HA-60HA. For example, the hardness of the rubber strip can be 20HA, 40HA or 60HA. In this way, the effect of the roller brush 10 can be guaranteed. In addition, during product design, the hardness of the rubber strip can be adjusted according to design requirements to meet more product design requirements.

[0068] In some embodiments of the present application, the cloth layer can be made of nylon or polyester. Nylon or polyester has high wear resistance and a smoother surface. By setting the cloth layer to nylon or polyester, the probability of hair sticking to the cloth layer can be reduced, and the service life of the brush strip 12 can be improved.

[0069] In some embodiments of the present application, the thickness of the cloth layer is 0.3-0.4 mm. For example, the thickness of the cloth layer can be 0.3 mm, 0.35 mm or 0.4 mm, thereby ensuring the cleaning effect and service life of the cloth layer.

[0070] In some embodiments of the present application, the inclination direction of the brush strip 12 in the direction from the driving end 111 toward the driven end 112 is the same as the rotation direction of the brush roller 11. In this way, when the brush roller 11 rotates, the brush strip 12 at the driven end 112 first contacts the ground. When the brush strip 12 contacts the hair, the hair moves from the driven end 112 toward the driving end 111 under the guidance of the brush strip 12. In this way, the hair is not easily entangled in the middle part between the driven end 112 and the brush roller 11, and the hair moves a longer distance on the brush roller 11. The cleaning force of the cleaning device 1000 also acts on the hair for a longer time, which can increase the probability of the cleaning device 1000 pulling the hair off the roller brush 10. As a result, the entanglement of the hair on the roller brush 10 during operation is further reduced, thereby improving the user experience during use.

[0071] In some embodiments of the present application, as shown in Figures 3 to 6, the roller brush 10 further includes: a second support bar 14, which is provided on the circumferential surface of the brush roller 11. The second support bar 14 extends obliquely along the circumference of the brush roller 11 from the driving end 111 toward the driven end 112, and the oblique extension direction of the second support bar 14 is the same as the oblique extension direction of the brush bar 12. The number of second support bars 14 is multiple and corresponds one-to-one to the brush bar 12, and the brush bar 12 is provided on the corresponding second support bar 14. For example, there can be two, three, or four second support bars 14. By providing the second support bar 14, the second support bar 14 can provide a layout space for the brush bar 12, thereby realizing the installation of the brush bar 12 on the brush roller 11.

[0072] In some embodiments of the present application, as shown in Figures 4, 6 and 7, the brush strip 12 includes a radial extension portion 122 and a circumferential extension portion 121. The circumferential extension portion 121 extends along the circumference of the brush roller 11. One end of the radial extension portion 122 is connected to the circumferential extension portion 121 at the middle position in the circumferential direction of the brush roller 11, and the other end extends radially outward along the brush roller 11, that is, the cross-sectional shape of the brush strip 12 in the radial direction of the brush roller 11 is T-shaped.

[0073] The second support bar 14 is provided with a fixing groove 141 which is recessed radially inwardly along the brush roller 11. The fixing groove 141 passes through the second support bar 14 along the length direction of the second support bar 14. The circumferential extension portion 121 and part of the radial extension portion 122 fit into the fixing groove 141. During assembly, the inner end of the brush strip 12 in the radial direction of the brush roller 11 extends into and is fixed in the fixing groove 141.

[0074] Among them, by setting the fixing groove 141, the brush strip 12 can be installed on the second support strip 14, and the coordination operation between the brush strip 12 and the fixing groove 141 is relatively simple, which can reduce the difficulty of disassembling the brush strip 12 on the second support strip 14, thereby improving production efficiency and reducing the difficulty of replacing the brush strip 12 when the user uses it.

[0075] By providing the radial extension portion 122, the portion of the radial extension portion 122 extending out of the fixing groove 141 contacts the ground when the roller brush 10 rotates, thereby achieving the cleaning effect of the roller brush 10. By providing the circumferential extension portion 121, the circumferential extension portion 121 can cooperate with the inner wall of the fixing groove 141, and the inner wall of the fixing groove 141 can abut against the circumferential extension portion 121, thereby preventing the brush strip 12 from moving out of the fixing groove 141, thereby achieving the fixation of the brush strip 12 in the fixing groove 141.

[0076] In some embodiments of the present application, as shown in Figure 7, a stop structure 124 is provided at one end of the brush strip 12 close to the driven end 112. When the brush strip 12 is installed in place in the fixed groove 141, the stop structure 124 will contact the edge of the fixed groove 141 to prevent the brush strip 12 from continuing to extend into the fixed groove 141. As a result, the installation accuracy of the brush strip 12 in the fixed groove 141 can be improved, and the installation difficulty of the brush strip 12 in the fixed groove 141 can be reduced.

[0077] In some embodiments of the present application, as shown in FIG7 , a concave air-avoiding groove 123 is formed on the surface of the circumferential extension portion 121 at the driving end 111 on the side facing the brush roller 11, and the air-avoiding groove 123 extends along the length direction of the brush strip 12. By providing the air-avoiding groove 123, the air-avoiding groove 123 can provide deformation space for the brush strip 12, thereby reducing the pressure on the driving end 111 of the brush roller 11 when the circumferential extension portion 121 at the driving end 111 is deformed, thereby improving the stability of the brush roller 11 during rotation, and reducing the pressure on the brush strip 12 by the first end cover 20, thereby increasing the service life of the brush strip 12.

[0078] In some embodiments of the present application, the distance between the two circumferential surfaces of each of the first support bar 13 and the second support bar 14 on the brush roller 11 gradually decreases from the inside to the outside in the radial direction of the brush roller 11. This can improve the support strength of the first support bar 13 and the second support bar 14, thereby improving the reliability of the roller brush 10 during operation.

[0079] In some embodiments of the present application, the angle between the upstream side of the first support bar 13 in the rotation direction of the brush roller 11 and the surface of the brush roller 11 is greater than the angle between the downstream side of the first support bar 13 in the rotation direction and the surface of the brush roller 11. When the roller brush 10 is working, the upstream side of the first support bar 13 in the rotation direction of the brush roller 11 will contact the garbage. The angle between the upstream side of the first support bar 13 in the rotation direction of the brush roller 11 and the surface of the brush roller 11 is larger, which can reduce the probability of granular garbage getting stuck on the first support bar 13 and the surface of the brush roller 11, and can reduce the probability of granular garbage colliding head-on with the first support bar 13, thereby reducing the noise generated by the collision of granular garbage with the first support bar 13, thereby improving the user experience.

[0080] In some embodiments of the present application, in the radial direction of the brush roller 11, the distance between the radial outer end of the first support bar 13 and the central axis of the brush roller 11 is a first height, and the distance between the radial outer end of the brush bar 12 and the central axis of the brush roller 11 is a second height, where the first height is less than the second height. Thus, during the rotation of the roller brush 10, the radial outer end of the brush bar 12 can contact the ground to clean the ground, while the first support bar 13 will not contact the ground, causing wear and noise.

[0081] In some embodiments of the present application, both end faces of the brush strip 12 are perpendicular to the radial outer end face of the brush strip 12 of the roller brush 10. This can reduce the process difficulty during the manufacturing of the brush strip 12, thereby reducing production costs and improving production efficiency.

[0082] The roller brush assembly 100 according to the second embodiment of the present application is described below with reference to Figures 1 to 12.

[0083] The roller brush assembly 100 according to the second embodiment of the present application includes: as shown in Figures 3, 4, 5, 6, 7 and 11, the roller brush 10, the first end cover 20 and the second end cover 30 according to the first embodiment of the present application, the first end cover 20 is provided with a mounting groove 21 opening toward the roller brush 10, the driving end 111 is inserted into the mounting groove 21, and one end of the first support bar 13 and the brush bar 12 are both extended into the mounting groove 21, and the second end cover 30 is connected to the driven end 112.

[0084] During assembly, the first end cover 20 is rotatably connected to the driving end bearing 42 , and the second end cover 30 is rotatably connected to the driven end bearing 31 , thereby enabling the roller brush 10 to rotate when it is working.

[0085] One end of the first support bar 13 and the brush bar 12 extends into the mounting groove 21. Both the first support bar 13 and the brush bar 12 can withstand the force exerted by the first end cap 20, thereby making the force exerted by the first end cap 20 on the roller brush 10 more uniform, thereby improving the stability and reliability of the roller brush 10 during rotation. Furthermore, this reduces the difficulty of installing and removing the first end cap 20 and the roller brush 10, improving production efficiency during production, and facilitating the user's cleaning of hair from the first end cap 20 and the roller brush 10 during use, thereby enhancing the user experience.

[0086] According to the roller brush assembly 100 of the second embodiment of the present application, by setting the roller brush 10 according to the above-mentioned first embodiment of the present application, the frequency of the user cleaning the roller brush assembly 100 during use can be reduced, thereby improving the user experience.

[0087] In some embodiments of the present application, at least one of the first end cap 20 and the second end cap 30 is detachably connected to the roller brush 10. Therefore, when the roller brush 10 needs to be cleaned, the first end cap 20 and / or the second end cap 30 can be removed from the roller brush 10. In this way, debris at the end of the roller brush 10 will not be blocked, and the user can clean the debris that needs to be cleaned along the roller brush 10.

[0088] For example, when hair is entangled on the roller brush 10, the first end cover 20 or the second end cover 30, or the first end cover 20 and the second end cover 30 can be removed from the roller brush 10. In this way, the user can push the hair off the roller brush 10 along the roller brush 10, thereby reducing the difficulty of the user cleaning the roller brush 10 and improving the user's usage experience.

[0089] In some embodiments of the present application, as shown in Figures 3 and 5, the first end cover 20 includes an inner ring plate 22 and an outer ring plate 23. The inner ring plate 22 extends along the axis of the roller brush 10 and extends in a ring shape around the axis of the roller brush 10. The outer ring plate 23 is annular and is sleeved on the radial outer side of the inner ring plate 22. The mounting groove 21 is formed between the inner ring plate 22 and the outer ring plate 23. By setting the inner ring plate 22 and the outer ring plate 23, the inner ring plate 22 and the outer ring plate 23 can cooperate to define the mounting groove 21, thereby realizing the connection between the roller brush 10 and the first end cover 20.

[0090] In some embodiments of the present application, as shown in Figures 3 and 4, the outer ring plate 23 includes a plurality of connecting plate portions 232 and a plurality of U-shaped plate portions 231, and the plurality of connecting plate portions 232 and the plurality of U-shaped plate portions 231 are alternately arranged in the circumferential direction of the roller brush 10, and the opening of the U-shaped plate portion 231 faces the axis of the roller brush 10, and the connecting plate portion 232 is connected between two adjacent U-shaped plate portions 231, and in the direction from the driving end 111 toward the driven end 112, the connecting plate portion 232 extends obliquely toward the axis of the roller brush 10 to the outer surface of the brush roller 11.

[0091] Among them, the mounting groove 21 includes multiple first groove portions 2311 and multiple second groove portions 2321, and the multiple first groove portions 2311 and the multiple second groove portions 2321 are alternately arranged in the circumferential direction of the roller brush 10. The connecting plate portion 232 and the inner ring plate 22 cooperate to define the first groove portion 2311, and the U-shaped plate portion 231 and the inner ring plate 22 cooperate to define the second groove portion 2321. The first support strip 13 is fitted in the first groove portion 2311, and the brush strip 12 is fitted in the second groove portion 2321.

[0092] By providing the connecting plate and the U-shaped plate, when hair is attached to the first end cover 20 during the operation of the roller brush 10, the U-shaped plate and the connecting plate can resist the hair as the hair moves toward the roller brush 10, thereby preventing the winding diameter of the hair from suddenly becoming smaller during the movement toward the roller brush 10, making it easier for the hair to be entangled on the roller brush 10, and when hair is entangled on the first end cover 20, the surfaces of the U-shaped plate and the connecting plate are relatively flat, which can facilitate the user to clean the hair from the first end cover 20.

[0093] At the same time, since the distance between the radial outer end of the first support bar 13 and the central axis of the brush roller 11 is smaller than the distance between the radial outer end of the brush bar 12 and the central axis of the brush roller 11, the first groove portion 2311 is defined by the cooperation between the connecting plate portion 232 and the inner ring plate 22, and the second groove portion 2321 is defined by the cooperation between the U-shaped plate portion 231 and the inner ring plate 22. The distance between the connecting plate portion 232 and the central axis of the brush roller 11 is smaller than the distance between the U-shaped plate portion 231 and the central axis of the brush roller 11, so that the shape of the first groove portion 2311 and the second groove portion 2321 is adapted to the shape of the roller brush 10, thereby facilitating the assembly of the roller brush 10 and the first end cover 20.

[0094] In some embodiments of the present application, in the radial direction of the roller brush 10 , the brush strip 12 is interference fit with the mounting groove 21 , thereby improving the reliability of the installation of the brush strip 12 in the mounting groove 21 .

[0095] In some embodiments of the present application, as shown in Figures 3 and 4, one end of the brush strip 12 is bent in a direction opposite to the rotation direction of the roller brush 10 and then extends into the mounting groove 21. The bent portion of the brush strip 12 abuts against the U-shaped plate portion 231, so that the bent portion can form a gentle slope, and the hair wrapped around the bent portion can slide away more easily, so that the hair is not easily wrapped around the roller brush 10, and the U-shaped plate portion 231 contacts the side of the brush strip 12, which can increase the contact area between the U-shaped plate portion 231 and the brush strip 12, thereby reducing the degree of friction of the U-shaped plate portion 231 on the brush strip 12. At the same time, the distance between the U-shaped plate portion 231 and the central axis of the brush roller 11 is large, and the degree of bending of the brush strip 12 will not be too large, thereby improving the service life of the brush strip 12.

[0096] In addition, the bent portion is closer to the surface of the brush roller 11. When the roller brush 10 is in operation, the bent portion does not contact the comb teeth 300 or the ground, thereby preventing the comb teeth 300 and the ground from exerting force on the portion of the brush strip 12 near the mounting slot 21. This reduces the probability of the brush strip 12 falling out of the mounting slot 21 during operation and improves the reliability of the roller brush assembly 100 during operation. The bending direction of the brush strip 12 is opposite to the rotation direction of the roller brush 10, which can reduce the air resistance of the brush strip 12 during rotation of the roller brush 10, thereby reducing the noise generated by the bent portion of the brush strip 12 and further improving the user experience.

[0097] In some embodiments of the present application, as shown in Figure 10, a snap-fit ​​structure 32 is formed on the second end cover 30, and a matching protrusion is formed on the inner side of the driven end 112 of the brush roller 11. The snap-fit ​​structure 32 extends into the inner side of the driven end 112 of the brush roller 11 to cooperate with the driven end 112 to achieve the connection between the second end cover 30 and the driven end 112. In this way, the assembly process can be simplified and the assembly efficiency can be improved.

[0098] The cleaning device 1000 according to the third embodiment of the present application is described below with reference to Figures 1 to 12.

[0099] A cleaning device 1000 according to an embodiment of the third aspect of the present application, as shown in Figures 1-3, comprises: a housing 200 and the roller brush assembly 100 according to the embodiment of the second aspect of the present application, wherein the housing 200 is formed with a receiving cavity 210, and the roller brush assembly 100 is disposed within the receiving cavity 210. It should be noted that the cleaning device 1000 may be a cleaning appliance such as a vacuum cleaner or a sweeping robot.

[0100] According to the cleaning device 1000 of the third aspect embodiment of the present application, by setting the above-mentioned roller brush assembly 100 according to the second aspect embodiment of the present application, the reliability of the cleaning device 1000 during use can be improved, and the frequency of cleaning the cleaning device 1000 during use by the user can be reduced, thereby improving the user experience.

[0101] In some embodiments of the present application, as shown in Figures 1 and 11, the cleaning device 1000 further includes: comb teeth 300, which are disposed in the accommodating cavity 210 and extend along the axis of the roller brush 10. The comb teeth 300 have a plurality of tooth posts 310 spaced apart along the axis of the roller brush 10, one end of the tooth post 310 being fixed and the other end extending toward the roller brush 10. The tooth post 310 aligned with the first end cap 20 in the axial direction of the roller brush 10 is a first tooth post 320, and the first tooth post 320 and the first end cap 20 are clearance-fitted in the radial direction of the roller brush 10. The gap b between at least one first tooth post 320 and the outer surface of the first end cap 20 is less than or equal to 0.5 mm. For example, the gap b between the first tooth post 320 and the outer surface of the first end cap 20 may be 0.1 mm, 0.3 mm, or 0.5 mm.

[0102] In this way, there is a gap between the first end cover 20 and the first gear column 320, and the first gear column 320 will not interfere with the rotation of the first end cover 20. At the same time, the gap between the first gear column 320 and the outer surface of the first end cover 20 is small, which can reduce the probability of hair moving to the drive end bearing 42, thereby reducing the probability of hair entangled in the drive end bearing 42 and causing the drive motor 600 to stall, heat up and burn, thereby improving the reliability of the cleaning device 1000 during operation.

[0103] In some embodiments of the present application, in the radial direction of the roller brush 10 , a first distance between an end of the tooth column 310 close to the roller brush 10 and the axis of the roller brush 10 is smaller than a second distance between the free end of the brush strip 12 and the axis of the roller brush 10 .

[0104] In this way, during the rotation of the roller brush 10, the tooth column 310 can contact the brush strip 12 to cause the brush strip 12 to be subjected to force and vibrate, so that the brush strip 12 can bounce off the hair and garbage on the brush strip 12, and the tooth column 310 can comb out some of the hair entangled on the roller brush 10, thereby further reducing the probability of hair entangled on the roller brush 10.

[0105] In some embodiments of the present application, the difference between the first spacing and the second spacing is 1 mm to 3.5 mm. For example, the difference between the first spacing and the second spacing can be 1 mm, 2 mm, 3 mm, or 3.5 mm. This ensures the effectiveness of the tooth column 310.

[0106] In some embodiments of the present application, as shown in Figures 1, 8, 9, and 11, the cleaning device 1000 further includes: a first bracket 400, the first bracket 400 being provided with a first mating groove 410 opening toward the roller brush 10; and the roller brush assembly 100 further includes: a third end cap 40, the third end cap 40 being connected to the first end cap 20 and being located on a side of the first end cap 20 facing away from the roller brush 10. The third end cap 40 is rotatably supported on the first bracket 400, with at least a portion of the third end cap 40 being disposed within the first mating groove 410. A drive-end bearing 42 is located at an end of the third end cap 40 away from the roller brush 10. The provision of the third end cap 40 prevents hair from migrating to the drive-end bearing 42, thereby reducing the probability of hair becoming entangled in the drive-end bearing 42 and causing the drive motor 600 to stall, overheat, or burn, thereby further improving the reliability of the cleaning device 1000 during operation.

[0107] Preferably, in the radial direction of the roller brush 10, the gap c between the circumference of the third end cap 40 and the circumferential wall of the first mating groove 410 is less than or equal to 0.3 mm. For example, the gap c between the circumference of the third end cap 40 and the circumferential wall of the first mating groove 410 can be 0.1 mm, 0.2 mm, or 0.3 mm. Thus, the first mating groove 410 does not interfere with the rotation of the third end cap 40, thereby allowing the roller brush assembly 100 to operate normally. Furthermore, the small gap between the circumference of the third end cap 40 and the circumferential wall of the first mating groove 410 can reduce the probability of hair moving onto the drive end bearing 42 through the gap between the circumference of the third end cap 40 and the circumferential wall of the first mating groove 410. This reduces the probability of hair becoming entangled in the drive end bearing 42, causing the drive motor 600 to stall, overheat, or burn, thereby further improving the reliability of the cleaning device 1000 during operation.

[0108] In some embodiments of the present application, as shown in Figures 1, 8, 9 and 11, a retaining rib 41 is provided on one side of the inner wall of the third end cover 40 facing the first matching groove 410. The retaining rib 41 extends in a ring shape around the axis of the roller brush 10 and includes a first stop segment 411 and a second stop segment 412. The first stop segment 411 extends along the axis of the roller brush 10 toward the bottom wall of the first matching groove 410, and one end of the second stop segment 412 is connected to the end of the first stop segment 411 facing the bottom wall of the first matching groove 410, and the other end of the second stop segment 412 extends radially outward along the roller brush 10, that is, the cross-section of the retaining rib 41 in the radial direction of the roller brush 10 is "L"-shaped. Therefore, when hair enters When the hair reaches between the third end cover 40 and the first matching groove 410, driven by the rotational inertia, the hair will move axially toward the first stop section 411. The first stop section 411 can prevent the hair from contacting the drive end bearing 42. A small part of the hair will move axially toward the stop groove 420. The second stop section 412 can block the hair, thereby reducing the probability of the hair moving from the gap between the radial outer end of the second stop section 412 and the peripheral wall of the stop groove 420 to the drive end bearing 42, thereby reducing the probability of the hair being entangled on the drive end bearing 42, causing the drive motor 600 to stall, heat up and burn, and further improving the reliability of the cleaning device 1000 during operation.

[0109] In some embodiments of the present application, a recessed stop groove 420 is provided on the bottom wall of the first mating groove 410, and the second stop section 412 is located within the stop groove 420. Furthermore, a gap d between the radially outer end of the second stop section 412 and the peripheral wall of the stop groove 420 is less than or equal to 1 mm. For example, the gap d between the radially outer end of the second stop section 412 and the peripheral wall of the stop groove 420 can be 0.1 mm, 0.5 mm, 0.7 mm, or 1 mm. Thus, the gap between the radially outer end of the second stop section 412 and the peripheral wall of the stop groove 420 is small, thereby further reducing the probability of hair from migrating from the gap between the radially outer end of the second stop section 412 and the peripheral wall of the stop groove 420 onto the drive-end bearing 42. This further reduces the probability of hair becoming entangled in the drive-end bearing 42, causing the drive motor 600 to stall, overheat, or burn, thereby further improving the reliability of the cleaning device 1000 during operation.

[0110] In some embodiments of the present application, as shown in Figures 1 and 12, the cleaning device 1000 also includes: a second bracket 500, the second end cover 30 is rotatably supported on the second bracket 500, and a second mating groove 510 is formed on the second bracket 500 and opens toward the roller brush 10, at least a portion of the second end cover 30 is arranged in the second mating groove 510, and in the radial direction of the roller brush 10, the gap e between the peripheral edge of the second end cover 30 and the peripheral wall of the second mating groove 510 is less than or equal to 0.3 mm. For example, the gap e between the circumference of the second end cover 30 and the circumferential wall of the second mating groove 510 can be 0.1 mm, 0.2 mm or 0.3 mm. Thus, the first mating groove 410 will not interfere with the rotation of the second end cover 30, so that the roller brush assembly 100 can work normally, and the driven end bearing 31 is located on the side of the second end cover 30 away from the roller brush 10. The gap between the circumference of the second end cover 30 and the circumferential wall of the second mating groove 510 is small, which can reduce the probability of hair moving from the gap between the circumference of the second end cover 30 and the circumferential wall of the second mating groove 510 to the driven end bearing 31, thereby reducing the probability of hair being entangled in the driven end bearing 31, causing the drive motor 600 to stall, heat up and burn, and further improving the reliability of the cleaning device 1000 during operation.

[0111] In some embodiments of the present application, as shown in Figure 1, the cleaning device 1000 also includes: a drive motor 600, a drive belt 610, a drive pulley 620, a drive end bearing 42 and a driven end bearing 31, wherein the first end cover 20 is rotatably supported on the first bracket 400 through the drive end bearing 42, the second end cover 30 is rotatably supported on the second bracket 500 through the driven end 112 drive bearing, the drive pulley 620 is connected to the third end cover 40, and the drive motor 600 is connected to the drive pulley 620 through the drive belt 610. Therefore, when working, the drive motor 600 can drive the roller brush assembly 100 to rotate through the drive belt 610 and the drive pulley 620, thereby realizing the cleaning function.

[0112] In some embodiments of the present application, as shown in Figure 2, the cleaning device 1000 includes a dust suction port 700 and a cleaning port 800. The cleaning device 1000 is arranged between the dust suction port 700 and the cleaning port 800. During operation, the dust suction port 700 generates suction and the cleaning device 1000 contacts the ground through the cleaning port 800. Under the push of the roller brush 10 of the cleaning device 1000 and the suction of the dust suction port 700, the garbage on the ground is sucked into the dust suction port 700, thereby completing the cleaning of the ground by the cleaning device 1000.

[0113] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0114] 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 one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0115] In this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0116] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", 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 schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0117] 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 intent 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, characterized in that: include: A brush roller, wherein two ends of the brush roller in the axial direction are respectively a driving end and a driven end; At least two brush bars and at least two first support bars are arranged on the brush roller, wherein the first support bars and the brush bars are alternately arranged in the circumferential direction of the brush roller, In a direction from the driving end toward the driven end, the brush bar and the first supporting bar both extend obliquely along the circumferential direction of the brush roller.

2. The roller brush according to claim 1, characterized in that: In the direction from the driving end to the driven end, the brush strip extends obliquely at an angle of 90°-180° in the circumferential direction of the brush roller.

3. The roller brush according to claim 1, characterized in that: The brush strip comprises: a rubber strip body and a cloth covering layer, wherein the rubber strip body extends from the driving end to the driven end, and the cloth covering layer at least covers the upstream side of the rubber strip body in the rotation direction of the brush roller.

4. The roller brush according to any one of claims 1 to 3, characterized in that: Also includes: The second support bar is arranged on the circumferential surface of the brush roller, and the second support bar extends obliquely along the circumference of the brush roller from the driving end toward the driven end, and the oblique extension direction of the second support bar is the same as the oblique extension direction of the brush bar. The number of the second support bars is multiple and corresponds to the brush bars one by one, and the brush bars are arranged on the corresponding second support bars.

5. The roller brush according to claim 4, characterized in that: The brush strip includes a radial extension portion and a circumferential extension portion. The second support strip is provided with a fixing groove which is recessed radially inwardly along the brush roller. The fixing groove passes through the second support strip along the length direction of the second support strip. The circumferential extension portion fits in the fixing groove.

6. The roller brush according to claim 5, characterized in that: A clearance groove is formed on one side of the circumferential extension portion located at the driving end toward the brush roller, and the clearance groove extends along the length direction of the brush bar.

7. The roller brush according to claim 4, characterized in that: In a direction from the inside to the outside in the radial direction of the brush roller, a distance between two side surfaces of any one of the first support bar and the second support bar in the circumferential direction of the brush roller gradually decreases.

8. The roller brush according to any one of claims 1 to 3, characterized in that: In the radial direction of the brush roller, the distance between the radial outer end of the first support bar and the central axis of the brush roller is a first height, and the distance between the radial outer end of the brush bar and the central axis of the brush roller is a second height, and the first height is smaller than the second height.

9. A roller brush assembly, characterized in that: include: The roller brush according to any one of claims 1 to 8; A first end cover and a second end cover, wherein the first end cover is provided with a mounting groove opening toward the roller brush, the driving end is inserted into the mounting groove, and one end of the first support bar and the brush bar both extend into the mounting groove, and the second end cover is connected to the driven end.

10. The roller brush assembly according to claim 9, characterized in that: At least one of the first end cover and the second end cover is detachably connected to the roller brush.

11. The roller brush assembly according to claim 10, characterized in that: The first end cover includes an inner ring plate and an outer ring plate, the inner ring plate extends along the axis of the roller brush and extends in a ring shape around the axis of the roller brush, the outer ring plate is ring-shaped and is sleeved on the radial outer side of the inner ring plate, and the mounting groove is formed between the inner ring plate and the outer ring plate.

12. The roller brush assembly according to claim 11, characterized in that: The outer ring plate includes a plurality of connecting plate portions and a plurality of U-shaped plate portions, and the plurality of connecting plate portions and the plurality of U-shaped plate portions are alternately arranged in the circumferential direction of the roller brush, the opening of the U-shaped plate portion faces the axis of the roller brush, the connecting plate portion is connected between two adjacent U-shaped plate portions, and in the direction from the driving end toward the driven end, the connecting plate portion extends obliquely toward the axis of the roller brush to the outer surface of the brush roller.

13. The roller brush assembly according to claim 12, characterized in that: One end of the brush strip is bent in a direction opposite to the rotation direction of the roller brush and then extends into the mounting groove, and the bent portion of the brush strip abuts against the U-shaped plate portion.

14. A cleaning device, characterized in that: include: A housing, wherein the housing is formed with a receiving cavity; According to the roller brush assembly according to any one of claims 9 to 13, the roller brush assembly is arranged in the accommodating cavity.

15. The cleaning device according to claim 14, characterized in that The cleaning device further comprises: a first bracket, the first bracket being provided with a first matching groove opening toward the roller brush; The roller brush assembly also includes: a third end cover, which is connected to the first end cover and is located on the side of the first end cover away from the roller brush, the third end cover is rotatably supported on the first bracket, and at least a portion of the third end cover is disposed in the first matching groove.

16. The cleaning device according to claim 15, characterized in that A retaining rib is provided on one side of the inner wall of the third end cover facing the first matching groove, and the retaining rib extends in a ring shape around the axis of the roller brush and includes a first stop section and a second stop section, the first stop section extends along the axis of the roller brush toward the bottom wall of the first matching groove, one end of the second stop section is connected to one end of the first stop section facing the bottom wall of the first matching groove, and the other end of the second stop section extends radially outward along the roller brush.

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