Roller brush, roller brush assembly, cleaning equipment and cleaning system

Abstract

The utility model relates to the technical field of cleaning equipment accessories, and provides a roller brush, a roller brush assembly, cleaning equipment and a cleaning system.The roller brush comprises a roller body, a first cleaning piece and a second cleaning piece, the roller body is provided with a first end and a second end, the first end is a connecting end, and the second end is a free end; the connecting end is used for being connected with the output end of a power device of the cleaning equipment, and the free end is in a suspended state when installed on the cleaning equipment. The first cleaning part comprises a plurality of first blades, each first blade is arranged on the peripheral wall of the roller body, and each first blade spirally extends in the direction from the connecting end to the free end; the second cleaning part comprises a bristle row, the bristle row is arranged on the peripheral wall of the roller body, the first blade interferes with a to-be-cleaned surface in a working state, the interference amount is K, and K is larger than 0 and smaller than or equal to 1 mm. The roller brush can effectively deal with cleaning scenes with many entanglements such as hair and ropes, the cleaning efficiency and performance of the roller brush are high, and meanwhile the working noise is low.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment accessories, and particularly provides a roller brush, a roller brush assembly, a cleaning equipment and a cleaning system. Background Art

[0002] With the increasing cleaning needs of people, various types of cleaning equipment have emerged. Among them, cleaning equipment such as floor sweeping robots, mopping and sweeping integrated robots, and mopping robots can meet the cleaning needs of indoor homes and large places.

[0003] However, when cleaning dirt on the ground, hair or rope-like entanglements mixed in it are easily wound around the roller brush. At the same time, there is also a relatively large noise during the cleaning process, which ultimately leads to a decline in the cleaning performance of the roller brush and affects the normal operation of the cleaning equipment. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a roller brush, a roller brush assembly, a cleaning equipment and a cleaning system, aiming to solve the problems of the decline in the cleaning performance of the roller brush caused by the difficulty of the existing roller brush in dealing with hair and other entanglements in dirt, and the generation of relatively large noise during the cleaning process.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] In the first aspect, an embodiment of the present application provides a roller brush for being arranged on a cleaning equipment and for cleaning a surface to be cleaned, comprising:

[0007] A roller body having a first end and a second end, the first end being a connection end and the second end being a free end. The connection end is used for connecting to the output end of the power device of the cleaning equipment, and the free end is in a suspended state when installed on the cleaning equipment.

[0008] A first cleaning member including a plurality of first blades, each of the first blades being arranged on the outer peripheral wall of the roller body, and each of the first blades extending spirally in the direction from the connection end to the free end.

[0009] A second cleaning member including a brush row, the brush row being arranged on the outer peripheral wall of the roller body.

[0010] The first blade interferes with the surface to be cleaned in the working state, wherein the interference amount is K, and 0 < K ≤ 1 mm.

[0011] Advantages of the present utility model: The roller brush provided by the present utility model is used to be arranged on a cleaning device, and cleans the surface to be cleaned by rotating around an axis, so as to collect dirt, hair, etc. on the surface to be cleaned. Specifically, the connecting end of the roller body of the roller brush is connected to the output end of the power device of the cleaning device, providing power for it to rotate around its own axis. At the same time, its free end is in a suspended state, that is, it is not directly connected to the cleaning device. During the rotation of the roller body around the axis, the first blades and the brush rows clean the dirt and hair, facilitating the centralized collection of dirt, hair, etc. at this end. And, it is defined that the interference amount is less than or equal to 1 mm to reduce the interference degree between the first blade and the surface to be cleaned, thereby reducing its working noise. In summary, the roller brush provided by this application can effectively cope with cleaning scenarios with a large number of winding objects such as hair and string, and has high cleaning efficiency and performance. At the same time, the working noise is also smaller.

[0012] In some embodiments, 0 < K ≤ 0.5 mm.

[0013] In some embodiments, the brush row extends from the first end to the second end, and the brush row is arranged adjacent to at least one of the first blades.

[0014] In some embodiments, the number of the first cleaning members is a multiple or a divisor of the number of the second cleaning members.

[0015] In some embodiments, the number of the first cleaning members is four, and the number of the second cleaning members is two or four.

[0016] In some embodiments, each of the first cleaning members and each of the second cleaning members are arranged at equal intervals on the outer peripheral wall of the roller body at intervals. The second cleaning member is located between two adjacent first cleaning members, and at least one second cleaning member is arranged adjacent to one of the first cleaning members.

[0017] In some embodiments, between two adjacent first cleaning members, the distance from at least one second cleaning member to one of the first cleaning members is less than the distance from the current second cleaning member to the other first cleaning member.

[0018] In some embodiments, the second cleaning member includes a first brush row and a second brush row;

[0019] Wherein, the height of the first brush row is different from the height of the second brush row; or,

[0020] The height of the first brush row is equal to the height of the second brush row, and the hardness of the first brush row is different from the hardness of the second brush row.

[0021] In some embodiments, the first row of bristles is disposed opposite to each other in the circumferential direction of the roller body, and the second row of bristles is disposed opposite to each other in the circumferential direction of the roller body; the first row of bristles and the second row of bristles are spaced apart.

[0022] In some embodiments, in the direction from the first end to the second end, the heights of the bristle clusters of the same first row of bristles are different, or the heights of the bristle clusters of the same second row of bristles are different.

[0023] In some embodiments, a groove structure is further provided on the surface of the roller body, and the groove structure has at least one of the following: the groove structure is located between the first cleaning member and the second cleaning member; the groove structure is disposed adjacent to the second cleaning member; the number of the groove structures is the same as the number of the second cleaning members.

[0024] In some embodiments, the height of the first cleaning member gradually decreases within a first length range from the second end, wherein the ratio of the first length to the length of the roller body is 1 / 6 to 1 / 4; and / or,

[0025] The second cleaning member is not provided within a second length range from the second end, wherein the ratio of the second length to the length of the roller body is 1 / 6 to 1 / 4; and / or,

[0026] The heights of the first cleaning member and the second cleaning member decrease synchronously within a first length range from the second end, wherein the ratio of the first length to the length of the roller body is 1 / 6 to 1 / 4.

[0027] In some embodiments, the second length is greater than the first length; and / or, the projection point on the roller body in the radial direction of the roller body of the extension end of the bristle cluster closest to the second end in the second cleaning member to the second end has a third length not greater than the first length.

[0028] In some embodiments, the row of bristles has a fixed end connected to the roller body, and the extension line direction of the connection line between the rotation center of the roller body and the fixed end forms an angle with the extending direction of the fixed end relative to the roller body, 10° ≤ the angle ≤ 60°.

[0029] In some embodiments, the first row of bristles has a first fixed end connected to the roller body, and the extension line direction of the connection line between the rotation center of the roller body and the first fixed end forms an angle a with the extending direction of the first fixed end relative to the roller body;

[0030] The second brush row has a second fixed end connected to the roller body, and the extension direction of the line connecting the rotation center of the roller body and the second fixed end forms an angle b with the extending direction of the second fixed end relative to the roller body; the angle a is the same as the angle b, or the angle a is different from the angle b, or 20° ≤ the angle a ≤ 45°, 20° ≤ the angle b ≤ 45°.

[0031] In some embodiments, the first blade has a connecting portion and a cleaning portion opposite to the connecting portion, the connecting portion is connected to the roller body, and the first blade has at least one of the following:

[0032] At the first end of the first blade, the extending direction of the cleaning portion from the first end to the second end forms an acute angle with the radial direction of the roller body;

[0033] In the direction from the connecting portion to the cleaning portion, the thickness of the first blade shows a decreasing trend;

[0034] An anti-slip structure is formed on the first blade;

[0035] A notch is provided at the end of the first blade near the first end;

[0036] The first blade has flexibility;

[0037] The hardness of the first blade is Shore hardness 60A to Shore hardness 85A.

[0038] In some embodiments, the roller brush further includes an end cap, an installation hole is provided on the second end, the end cap is placed in the installation hole, an installation groove is formed on the outer peripheral wall of the roller body, the installation groove is communicated with the installation hole, and each of the first blades is inserted into the installation groove from the installation hole, or the first blade is integrally formed in the installation groove.

[0039] In some embodiments, the roller brush further includes an end cap, the end cap is integrally formed on the second end, or the end cap is detachable from the second end.

[0040] In some embodiments, a first structure for facilitating the winding object to be thrown out from the second end is provided on the end face of the end cap, wherein the first structure has one of the following:

[0041] The first structure includes a convex structure, the layout path of the convex structure passes through the geometric center of the end cap, and the height of the convex structure shows an increasing trend along the layout path direction of itself;

[0042] The first structure includes a convex point, and the convex point is provided at any position except the geometric center of the end cap;

[0043] The end face of the end cover is an inclined surface, and the inclined surface forms the first structure.

[0044] In some embodiments, the end cover has at least one of the following:

[0045] The end cover is flexible;

[0046] The surface roughness of the end face of the end cover is greater than 30;

[0047] The hardness of the end cover is Shore hardness 45A to Shore hardness 75A.

[0048] In some embodiments, when the number of the first cleaning members is four and the number of the second cleaning members is two, a first area for arranging the second cleaning members and a second area without the second cleaning members are further arranged on the outer peripheral wall of the roller body. The second area forms a guiding portion, and the guiding portion is located between the two first cleaning members.

[0049] In some embodiments, in the direction from the first end to the second end, the number of the guiding portions is two, and the surface roughness of the guiding portions gradually decreases, and / or the surface roughness of the guiding portions gradually increases; and / or, the surface roughness of the corresponding parts of different guiding portions in the radial direction of the roller brush is different.

[0050] In some embodiments, a hole structure for accommodating the second cleaning member is arranged on the roller body, and the aperture r of the hole structure ranges from 1.5 mm to 4.0 mm; and / or, the number range of the hole structures is 20 to 35; and / or, when the aperture r of the hole structure is 1.5 mm, the number S of the implanted hairs of the second cleaning member ranges from 50 to 250.

[0051] In some embodiments, the roller brush includes a bracket rotatably connected to the first end of the roller body, and the bracket is detachably connected to the roller body or the bracket cannot be detached from the roller body.

[0052] In some embodiments, the bracket includes a main body portion and support portions arranged on opposite sides of the main body portion. The two support portions are used for connecting to the housing of the cleaning device; a transmission portion is arranged at the first end of the roller body, and the transmission portion is adapted to the output end of the power device of the cleaning device;

[0053] Wherein, an anti-fooling structure is arranged on at least one of the support portions, and / or, the number of teeth of the transmission portion is four to seven.

[0054] In some embodiments, when the roller body rotates, the first brush row interferes with the bracket; and / or, the second brush row does not interfere with the bracket.

[0055] In some embodiments, a barrier member is provided between the roller body and the bracket. The barrier member rotates with the roller body, and the barrier member interferes with the bracket.

[0056] Second aspect, an embodiment of the present application further provides a roller brush assembly, including:

[0057] A housing having an accommodation cavity, and

[0058] The roller brush as described above;

[0059] Wherein, the roller brush is disposed in the accommodation cavity, and an air suction port is formed on the housing, and the air suction port corresponds to the second end of the roller brush.

[0060] Advantageous effects of the present utility model: The roller brush assembly provided by the present utility model, on the basis of having the above roller brush, dirt and entanglements entering the accommodation cavity are sucked in by the air suction port and effectively collected under the winding guidance of the roller brush.

[0061] In some embodiments, the rotation diameter of the second cleaning member of the roller brush is greater than the inner diameter of the accommodation cavity.

[0062] In some embodiments, the number of the roller brushes is two, and each roller brush is oppositely disposed in the accommodation cavity, or each roller brush is disposed side by side in the accommodation cavity.

[0063] In some embodiments, different first cleaning members are provided on different roller brushes; or different second cleaning members are provided on different roller brushes; both the first cleaning members and the second cleaning members provided on different roller brushes are different.

[0064] Third aspect, an embodiment of the present application further provides a cleaning device including the above-mentioned roller brush assembly.

[0065] Advantageous effects of the present utility model: The cleaning device provided by the present utility model, on the basis of having the above roller brush assembly, has higher cleaning performance and cleaning efficiency, and can cope with usage scenarios with more entanglements such as hair.

[0066] Fourth aspect, an embodiment of the present application further provides a cleaning system, including a base station and the above-mentioned cleaning device, wherein the base station is used to dock the cleaning device.

[0067] Advantages of the present utility model: The cleaning system provided by the present utility model, on the basis of having the above-mentioned cleaning equipment, the base station and the cleaning equipment cooperate with each other, with higher cleaning efficiency, easier to maintain, and the trouble of the user for secondary cleaning of the cleaning equipment is saved. Description of the Drawings

[0068] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0069] Figure 1 The front view of the roller brush provided in the first embodiment of the present utility model;

[0070] Figure 2 The structural schematic diagram of the roller brush provided in the first embodiment of the present utility model;

[0071] Figure 3 For Figure 2 The enlarged view at A in

[0072] Figure 4 The other front view of the roller brush provided in the first embodiment of the present utility model;

[0073] Figure 5 The front view of the roller brush provided in the second embodiment of the present utility model;

[0074] Figure 6 The sectional view of the roller brush provided in the third embodiment of the present utility model;

[0075] Figure 7 The sectional view of the roller brush provided in the fourth embodiment of the present utility model;

[0076] Figure 8 The exploded view of the roller brush provided in the embodiment of the present utility model;

[0077] Figure 9 For Figure 8 The enlarged view at B in

[0078] Figure 10 The left view of the roller brush provided in the embodiment of the present utility model;

[0079] Figure 11 The top view of the roller brush provided in the embodiment of the present utility model;

[0080] Figure 12 For Figure 11 The enlarged view at C in

[0081] Figure 13 Another front view of the roller brush provided in the first embodiment of the present utility model;

[0082] Figure 14 Exploded view of the roller brush provided in the first embodiment of the present utility model;

[0083] Figure 15 Schematic structural diagram of the roller brush provided in the fifth embodiment of the present utility model;

[0084] Figure 16 Another front view of the roller brush provided in the first embodiment of the present utility model;

[0085] Figure 17 Schematic structural diagram of the roller brush provided in the embodiment of the present utility model excluding the second cleaning member;

[0086] Figure 18 Another schematic structural diagram of the roller brush provided in the first embodiment of the present utility model;

[0087] Figure 19 For Figure 18 Enlarged view at D in

[0088] Figure 20 Schematic structural diagram of the roller brush provided in the first embodiment of the present utility model assembled in the roller brush assembly;

[0089] Figure 21 Schematic structural diagram of the roller brush provided in the first embodiment of the present utility model disassembled from the roller brush assembly;

[0090] Figure 22 Schematic structural diagram of the roller brush assembly provided in the second embodiment of the present utility model;

[0091] Figure 23 Schematic structural diagram of the roller brush assembly provided in the third embodiment of the present utility model.

[0092] Among them, the reference numerals in the figures:

[0093] 100, roller brush;

[0094] 10, roller body; 10a, connection end; 10b, free end; 10c, mounting hole; 10d, mounting groove; 10e, guiding portion; 10f, hole structure; 10g, groove structure; 10h, transmission portion

[0095] 20, first blade; 21, connection portion; 22, cleaning portion; 221, anti-slip structure; 23, side wall portion; 24, notch;

[0096] 30, brush row; 31, first brush row; 311, first fixed end; 32, second brush row; 321, second fixed end;

[0097] 40. End cap; 41. First structure;

[0098] 50. Bracket; 51. Main body part; 52. Support part; 53. Anti-fooling structure;

[0099] 60. Barrier member;

[0100] 1000. Roller brush assembly; 200. Housing; 201. Accommodation cavity; 202. Suction air inlet;

[0101] M. Rotation center of the roller body; N. Geometric center of the end cap; G. Surface to be cleaned. Detailed implementation manners

[0102] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0103] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present invention.

[0104] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0105] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed" and other terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0106] The roller brush in the cleaning device is used to push and collect dirt and hair on the surface to be cleaned. In the related solution, both ends of the roller brush are fixedly connected to the cleaning device, but this easily causes hair, ropes and other entanglements to be wound around the roller brush and difficult to be removed, thereby reducing the cleaning performance of the roller brush.

[0107] In view of this, the embodiment of the present disclosure provides a roller brush, wherein the roller body has a first end and a second end. The first end is a connection end, which is used to be connected to the output end of the power device of the cleaning device, and the second end is a free end, which is suspended when the roller brush is installed on the cleaning device, so that hair, cords and other entanglements can be easily removed from the roller brush, and after the entanglements are removed from the free end, it is difficult to be re-rolled into the roller brush, thereby improving the cleaning performance of the roller brush.

[0108] Please refer to Figures 1 to 3 The embodiment of the present application provides a roller brush 100, which is arranged on a cleaning device. The roller brush 100 can interfere with the surface to be cleaned to roll garbage and debris on the surface to be cleaned into the dust box of the cleaning device, thereby cleaning the surface to be cleaned.

[0109] The roller brush 100 includes a roller body 10, on which a first cleaning member is provided. In some embodiments, the first cleaning member includes a first blade 20. The roller body 10 is the main structural part of the roller brush 100, and is used to carry and support the first cleaning member; the roller body 10 has a first end and a second end, the first end is a connecting end 10a, which is used to connect to the output end of the power device of the cleaning device, and the second end is arranged opposite to the connecting end 10a. When the roller brush 100 is installed on the cleaning device, the second end is not directly connected to the cleaning device, but is in a suspended state, that is, the second end is a free end 10b (hereinafter described as a "free end"). When the roller brush 100 is in a separated state from the cleaning device, there are also obvious differences in structure between the connecting end 10a and the free end 10b. For example, a toothed transmission structure should be provided on the connecting end, while such a structure does not exist on the free end 10b, so as to distinguish them in a non-assembled state.

[0110] It can be understood that the toothed transmission structure formed on the connecting end 10a can efficiently transmit the torque to the roller body 10; the free end 10b does not contact with other components and is in a suspended state. Such a design is conducive to the separation of entanglements such as hair and ropes from the roller brush 100, which can greatly reduce the difficulty of users cleaning the roller brush 100, and also enable the roller brush 100 to maintain a high cleaning performance during the process of cleaning the floor and other cleaning surfaces.

[0111] Please refer to Figure 1 In some embodiments, the first blade 20 interferes with the surface to be cleaned G when in working state, wherein the interference amount M ranges from 0 to 1 mm.

[0112] Understandably, in the working state, the first blade 20 refers to the state where the first blade 20 rotates around the axis with the roller body 10, and the first blade 20 interferes with the surface G to be cleaned during the rotation around the axis.

[0113] The interference amount M is the degree range of the contact between the first blade 20 and the surface G to be cleaned. The larger the interference amount M, the higher the degree of contact between the first blade 20 and the surface G to be cleaned, and the better the cleaning effect. However, at the same time, the noise during cleaning also increases.

[0114] Specifically, the interference amount M can be 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, 0.55 mm, 0.6 mm, 0.65 mm, 0.7 mm, 0.75 mm, 0.8 mm, 0.85 mm, 0.95 m, 1 mm, etc.

[0115] Optionally, the range of the interference amount M is 0 - 0.5 mm. At this time, the degree of contact between the first blade 20 and the surface G to be cleaned is relatively low, with a corresponding cleaning effect and less noise during cleaning.

[0116] Specifically, the interference amount M can also be 0.1 mm, 0.12 mm, 0.14 mm, 0.16 mm, 0.18 mm, 0.2 mm, 0.22 mm, 0.24 mm, 0.25 mm, 0.28 mm, 0.3 mm, 0.32 mm, 0.34 mm, 0.36 mm, 0.38 mm, 0.4 mm, 0.42 mm, 0.44 mm, 0.46 mm, 0.48 mm, 0.5 mm, etc.

[0117] In some embodiments, the number of the first blades 20 can be multiple. Each first blade 20 is installed on the outer peripheral wall of the roller body 10, and each first blade 20 extends spirally along the direction from the connecting end 10a to the free end 10b.

[0118] Understandably, the first blade 20 is mainly used to clean dirt, particulate matter, dust, etc. The first blade 20 should be in a sheet structure, with the characteristics of thin thickness and long and narrow shape, so as to be formed on the outer peripheral wall of the roller body 10. Here, the setting method of the first blade 20 on the roller body 10 can be integrally formed, that is, synchronously formed with the roller body through the in-mold injection process; or the setting method of the first blade 20 on the roller body can also be separately formed, that is, the first blade 20 is subsequently connected to the roller body through connection methods such as plugging, clamping, or threading.

[0119] The first blades 20 are spirally distributed on the roller body 10. At the same time, the spacing size and bending angle of each first blade 20 spirally distributed on the roller body can be adjusted according to the actual working scenario.

[0120] Optionally, the number of the first blades 20 is two or four, and each of the first blades 20 is spirally distributed on the roller body 10 at equal intervals and with the same bending angle.

[0121] In some other embodiments, in addition to the first cleaning member, a second cleaning member may be further provided on the outer peripheral wall of the roller body 10, and the second cleaning member is different from the first cleaning member, wherein the second cleaning member may include a brush row 30.

[0122] It can be understood that the brush row 30 is mainly used for cleaning entanglements such as hair and string. The brush row 30 is similar to a brush and may be a cluster of bristles provided on the roller body 10. The arrangement form of the brush row 30 on the roller body 10 is the same as that of the first blade 20 on the roller body 10, and is also spirally distributed on the roller body 10. The brush row 30 should be located between two adjacent first blades 20. Therefore, in terms of the setting position, the brush row 30 may be located in the middle of two adjacent first blades 20, or may be adjacent to one of the two adjacent first blades 20 and away from the other of the two adjacent first blades 20.

[0123] In some embodiments, the number of the brush rows 30 is a multiple or a divisor of the number of the first blades 20. It can be understood that, for example, if the number of the first blades 20 is four, the number of the brush rows 30 may be one, two or four, but cannot be three; if the number of the first blades 20 is six, the number of the brush rows 30 may be one, two, three or six, but cannot be four or five, and so on.

[0124] Optionally, the number of the brush rows 30 may be one, two or four, and each of the brush rows 30 may be distributed on the roller body 10 at equal intervals. The setting manner of the brush row 30 and the first blade 20 depends on the number of the first blades 20. If the number of the brush rows 30 is equal to the number of the first blades 20, each brush row 30 may be adjacent to any one of the first blades 20; if the number of the brush rows 30 is less than the number of the first blades 20, each brush row 30 is arranged adjacent to different first blades 20; if the number of the brush rows 30 is greater than the number of the first blades 20, two brush rows 30 may be arranged adjacent to both sides of one first blade 20.

[0125] In some other embodiments, the second cleaning member may be provided with second blades to replace the brush row 30, and the second blades may also be arranged adjacent to the first blades 20.

[0126] Understandably, the second blade is mainly used to clean entanglements such as hair and strings that are prone to entanglement. In some embodiments, the material and shape of the second blade may be different from those of the first blade 20. For example, there is a difference in the height of the second blade from that of the adjacent first blade 20. Specifically, the height of the second blade may be less than the height of the adjacent first blade 20. Similarly, there may be a difference in the length of the second blade from that of the adjacent first blade 20. Specifically, the length of the second blade may be shorter than the length of the adjacent first blade 20. Also, there is a difference in the thickness of the second blade from that of the adjacent first blade 20. Specifically, the thickness of the second blade may be less than the thickness of the adjacent first blade 20.

[0127] Here, regarding the number of the second blades, their arrangement positions on the roller body 10, and the adaptation with the first blades 20, reference can be made to the embodiments related to the brush rows 30, which will not be elaborated here.

[0128] Exemplarily, only the first blades 20 may be provided on the roller body 10, without the brush rows 30 or the second blades. The number of the first blades 20 is four, and the first blades 20 are spaced apart from each other at equal intervals on the outer peripheral wall of the roller body 10.

[0129] Exemplarily, only the first blades 20 and the brush rows 30 are provided on the roller body 10. The number of the first blades 20 is four, and the number of the brush rows 30 is two. The first blades 20 are spaced apart from each other at equal intervals on the outer peripheral wall of the roller body 10. The two brush rows 30 are symmetrically arranged at 180° with the rotation center M of the roller body 10 as the center of symmetry on the outer peripheral wall of the roller body 10, and each brush row 30 is adjacent to one side of a different first blade 20. Alternatively, the number of the brush rows 30 is also four, and the four brush rows 30 are spaced apart from each other at equal intervals on the outer peripheral wall of the roller body 10, and each brush row 30 is located between two adjacent first blades 20 in sequence. Alternatively, two of the four brush rows 30 form a group, and one group of two brush rows 30 is arranged side by side between two adjacent first blades 20, and the other group of two brush rows 30 is arranged side by side between another two adjacent first blades 20.

[0130] Exemplarily, only the first blades 20 and the second blades are provided on the roller body 10. The number of the first blades 20 is four, and the number of the second blades is two. The first blades 20 are arranged on the outer peripheral wall of the roller body 10 at equal intervals and spaced apart from each other. The two second blades are symmetrically arranged on the outer peripheral wall of the roller body 10 in a 180° central symmetry with the rotation center M of the roller body 10 as the center of symmetry, and each second blade is adjacent to one side of a different first blade 20. Alternatively, the number of the second blades is also four, and the four second blades are arranged on the outer peripheral wall of the roller body 10 at equal intervals and spaced apart from each other, and the second blades are sequentially located between two adjacent first blades 20. Alternatively, two of the four second blades are in a group, and one group of two second blades are arranged side by side between two adjacent first blades 20, and the other group of two second blades are arranged side by side between the other two adjacent first blades 20.

[0131] Please refer to Figures 2 to 6 , in some embodiments, at least one first blade 20 has a gradually decreasing height closer to the free end 10b; and / or, the brush row 30 or the second blade extends from the connection end 10a to the free end 10b.

[0132] It can be understood that the height of the first blade 20 refers to the distance between the end of the first blade 20 connected to the roller body 10 and the end away from the roller body 10. Please refer to Figure 4 and Figure 6 , the height of the first blade is H. At the same time, the range of the part of the first blade 20 at the free end 10b relative to the overall length of the roller body 10 is correspondingly explained here. Specifically, taking the length of the roller body 10 as a reference standard, the length of the roller body is L1, and the part of the first blade 20 close to the free end 10b is the first length L2. Then, the ratio range of L2 to L1 is between one-sixth and one-fourth. That is, in the direction from the connection end 10a to the free end 10b, within the L2 range close to the free end 10b, the height of the first blade 20 begins to gradually decrease, and the height of the entire first blade 20 is the smallest at the end of the first blade 20 (the end where the first blade 20 is flush with the free end 10b). With such a setting, it is easier for winding objects such as hair and string to break away from the free end 10b of the roller body 10. In addition, the overall outer diameter of the roller brush 100 near the free end 10b is smaller than that of other parts. After the winding object breaks away from the free end 10b, it is also difficult to be re-rolled onto the roller brush 100, which can play a role in preventing the backflow of the winding object.

[0133] Exemplarily, taking the length L1 of the roller body 10 as 16 cm as an example, the range of the first length L2 of the part of the first blade 20 at the free end 10b can be between 2.6 cm and 4 cm. Within this range, the height of the first blade 20 begins to gradually decrease.

[0134] In addition, when the number of the first blades 20 is plural, at least one of the first blades 20 can be selected to have a gradually decreasing height at the free end 10b.

[0135] Exemplarily, the number of the first blades 20 is four, and the heights of the four first blades 20 at the free end 10b (within the first length L2) are all gradually decreasing. Moreover, the heights of each of the first blades 20 at the free end 10b are decreasing synchronously in the same proportion. Therefore, in terms of appearance, the shapes of the first blades 20 at the free end 10b are consistent.

[0136] Certainly, in other embodiments, the heights of the first blades 20 at the free end 10b (within the first length L2) are gradually decreasing, and the decreasing ratios of the heights of each of the first blades 20 may not be the same. For example, when the decreasing ratio of the height of one of the blades 20 is small, in terms of appearance, the part of the first blade 20 at the free end 10b is similar to a small-radius fillet; or when the decreasing ratio of the height of the first blade 20 is large, in terms of appearance, the part of the first blade 20 at the free end 10b is similar to a large-radius fillet.

[0137] In some embodiments, on the basis that the brush row 30 or the second blade is adjacent to the first blade 20, it also starts from the connecting end 10a and ends at the free end 10b, and is continuously arranged in a spiral manner in the direction from the connecting end 10a to the free end 10b. So that the winding objects such as hairs and cords on the wound brush row 30 can be moved to the free end 10b of the roller body 10, which is used to improve the continuity of the winding objects during transportation.

[0138] Optionally, the structural settings of the first blade 20 and the brush row 30, or the first blade 20 and the second blade on the roller body 10 can be selected according to actual usage requirements. For example, only the height of at least one first blade 20 gradually decreases within the L2 range from the free end 10b, that is, the closer the first blade 20 is to the free end 10b, the smaller its height, while the brush row 30 or the second blade does not extend to the free end 10b, that is, within at least the first length L2 range from the free end 10b, the brush row 30 or the second blade is not provided; or only the brush row 30 or the second blade extends from the connecting end 10a to the free end 10b, while the height of the first blade 20 at the free end 10b remains unchanged and is consistent; or within the first length L2 range of the free end 10b, the height of at least one first blade 20 gradually decreases, and the brush row 30 or the second blade also corresponds to the first blade 20, that is, the height of the brush row 30 or the second blade also gradually decreases within the L2 range of the free end 10b.

[0139] Please refer to Figure 5, in some embodiments, the bristle row 30 extends from the connecting end 10a towards the free end 10b. The bristle row 30 does not extend to the free end, and the connection of the bristle row 30 closest to the free end 10b to the roller body 10 does not exceed the starting end where the height of the first blade 20 begins to decrease at the free end 10b.

[0140] It can be understood that the starting end where the height of the first blade 20 begins to decrease at the free end 10b has been explained in the above embodiments and will not be elaborated here. As Figure 7 shown, where point A in the figure is the starting point where the height of the first blade 20 begins to decrease at the free end 10b.

[0141] Along the extending direction of the bristle row 30 itself, the bristle row 30 not extending to the free end 10b means that there is a certain distance between the connection of the bristle row 30 closest to the free end 10b to the roller body and the free end 10b. This distance is the second length L3, and the second length L3 can be one-sixth to one-fourth of the length L1 of the roller body 10. That is, from the overall structure, there is a partial area near the free end 10b of the roller body 10 where no bristle row 30 is provided. Specifically, for the bristle cluster of the bristle row 30 closest to the free end 10b, this bristle bundle has a fixed end B connected to the roller body 10 and an extending end C away from the roller body 10. Here, it is defined that the horizontal distance from the fixed end B of the bristle cluster of the bristle row 30 closest to the free end 10b to the free end 10b is the second length L3, and the second length L3 is greater than the first length L2 from point A to the end of the first blade 20. At the same time, in the axial direction of the roller body 10, the projection point D on the roller body 10 of the extending end C of the bristle cluster of the bristle row 30 closest to the free end 10b to the free end 10b has a third length L4 that is not greater than the first length L2 from point A to the end of the first blade 20.

[0142] In other embodiments, the fixed end B of the last bristle cluster of the bristle row 30 at the free end 10b can coincide with the projection point of point A in the radial direction of the roller body 10, that is, the second length L3 is equal to the first length L2; or, the horizontal distance from the fixed end B of the last bristle cluster of the bristle row 30 at the free end 10b to the free end 10b can also be less than the horizontal distance from point A to the end of the first blade 20, that is, the second length L3 is less than the first length L2.

[0143] With such a design, when the bristle row 30 does not extend to the free end 10b, the winding objects wound around the bristle row 30 are more likely to disengage at the free end 10b when the roller body 10 rotates around its axis, compared to the case where the bristle row 30 extends to the free end 10b, and the probability of the winding objects staying on the free end 10b is reduced.

[0144] The roller brush 100 provided by the present utility model is used to be arranged on a cleaning device, and cleans the surface G to be cleaned by rotating around an axis, so as to collect the winding objects and hairs on the surface G to be cleaned. Specifically, during the rotation of the roller body 10 around the axis, the first blade 20 and the brush row 30, or the first blade 20 and the second blade sweep the winding objects such as hairs and strings, facilitating the concentration of impurities at the free end 10b. Since the height of the first blade 20 decreases at the free end 10b, the probability that winding objects such as hairs and strings wind around the free end 10b of the roller body 10 can be greatly reduced. At the same time, the overall outer diameter of the roller brush 100 at the free end 10b is also smaller than the outer diameters of other parts. After the winding objects are separated from the free end 10b, it is also difficult to be re-rolled onto the roller brush 100, achieving a corresponding anti-backflow effect. In addition, the brush row 30 or the second blade can correspond to the first blade 20 and also extend to the free end 10b. Or, the brush row 30 does not extend to the free end, making it easier for winding objects such as hairs and strings to be separated from the free end 10b, reducing the probability that the winding objects stay on the free end 10b. And, the interference amount is limited to be less than or equal to 1 mm to reduce the interference degree between the first blade and the surface to be cleaned, thereby reducing the working noise. In summary, the roller brush 100 provided by the present application can effectively handle cleaning scenarios with a large number of winding objects such as hairs and strings, has high cleaning efficiency and performance, and at the same time, has less working noise.

[0145] Please refer to Figure 6 and Figure 7 , in some embodiments, the brush row 30 includes a first brush row 31 and a second brush row 32.

[0146] It can be understood that the first brush row 31 and the second brush row 32 may differ in the setting position, as well as the material and size, so that the brush row 30 is composed of a combination of various types of brushes.

[0147] Continue to refer to Figure 6 , in some embodiments, the height of the first brush row 31 is greater than the height of the second brush row 32. Here, the height of the brush row refers to the minimum distance from the end of the brush row away from the roller body 10 to the outer peripheral wall of the roller body 10.

[0148] In some embodiments, the higher the first brush row 31, the greater the degree of deformability, and it is easier to reduce the probability that winding objects such as hairs and strings wind around the roller body 10. The height of the second brush row 32 is relatively small, and the degree of deformability is relatively small, which is suitable for cleaning and collecting the hairs on the surface G to be cleaned to improve the cleaning efficiency. At the same time, the second brush row 32 can also play a role in preventing foreign objects from getting stuck to improve the service life of the roller brush 100.

[0149] Or, continue to refer to Figure 7, the height of the first bristle row 31 is equal to the height of the second bristle row 32, but the hardness of the first bristle row 31 is not equal to the hardness of the second bristle row 32.

[0150] Understandably, in order to reflect the difference in the degree of deformation between the first bristle row 31 and the second bristle row 32, when the height of the first bristle row 31 is equal to the height of the second bristle row 32, the hardness of the material of the first bristle row 31 can be selected to be less than the hardness of the material of the second bristle row 32. Then, similarly, the overall of the first bristle row 31 is softer and the degree of deformation can be greater; the overall of the second bristle row 32 is harder and the degree of deformation can be smaller. Of course, in some embodiments, the height of the first bristle row 31 is also equal to the height of the second bristle row 32, and the hardness of the material of the first bristle row 31 and the hardness of the material of the second bristle row 32 are not limited.

[0151] In some embodiments, the hardness of the material of the first bristle row 31 and the hardness of the material of the second bristle row 32 can also be set differently, and the height of the first bristle row 31 and the height of the second bristle row 32 are not limited.

[0152] In some embodiments, in the direction from the connecting end 10a to the free end 10b, the height of the same first bristle row 31 shows a decreasing trend, or the height of the same first bristle row 31 shows a trend of increasing first and then decreasing; and / or, the height of the same second bristle row 32 shows a decreasing trend, or the height of the same second bristle row 32 shows a trend of increasing first and then decreasing.

[0153] Understandably, in order to facilitate the winding object to detach from the bristle row 30 more easily, for the same first bristle row 31 and the same second bristle row 32, their heights can also be set differently, that is, in the direction from the connecting end 10a to the free end 10b, the height of the same first bristle row 31 shows a decreasing trend; or the height of the same second bristle row 32 shows a decreasing trend; or the heights of the same first bristle row 31 and the same second bristle row 32 both show a decreasing trend; or the height of the same first bristle row 31 shows a trend of increasing first and then decreasing; or the height of the same second bristle row 32 shows a trend of increasing first and then decreasing; or the heights of the same first bristle row 31 and the same second bristle row 32 both show a trend of increasing first and then decreasing; or the height of the same first bristle row 31 shows a decreasing trend; while the height of the same second bristle row 32 shows a trend of increasing first and then decreasing; or the height of the same first bristle row 31 shows a trend of increasing first and then decreasing, while the height of the same second bristle row 32 shows a decreasing trend.

[0154] In terms of appearance, the fact that the height of the same first brush row 31 first increases and then decreases means that the height of the first brush row 31 presents a structural feature of "low at both ends and high in the middle". Similarly, the fact that the height of the same second brush row 32 first increases and then decreases means that the height of the second brush row 32 presents a structural feature of "low at both ends and high in the middle".

[0155] Exemplarily, the number of the first brush rows 31 is two, and the first brush rows 31 do not extend to the free end 10b; the number of the first vanes 20 is four, and the first vanes 20 are equally spaced and arranged on the outer peripheral wall of the roller body 10. The ratio of the first length L2 of the part near the free end 10b to the length L1 of the roller body 10 is about one-sixth (which can be arbitrarily selected between one-sixth and one-fourth). The height of each first vane 20 gradually decreases within the first length L2 range; the first brush rows 31 are symmetrically arranged on the outer peripheral wall of the roller body 10 with the rotation center M of the roller body 10 as the center of symmetry by 180°. Moreover, one first brush row 31 is adjacent to one side of one of the first vanes 20, and the other first brush row 31 is adjacent to one side of the other first vane 20; as Figure 5 shown, a groove structure 10g is further provided on the side of the first brush row 31 away from the adjacent first vane 20. The groove structure 10g spirally extends from the connection end 10a to the free end 10b and corresponds to the number of the first brush rows 31. The functions of the groove structure 10g are as follows: First, it reduces the material, thereby enabling the weight of the roller brush 100 to be reduced; second, it can serve as an air flow channel and a garbage transportation channel to facilitate the transportation of garbage from the connection end 10a to the free end 10b; third, it is convenient for the implantation of the brush rows 30 and can avoid the shrinkage of the roller body 10 caused by the implantation of the brush clusters, meeting the process requirements.

[0156] Exemplarily, the number of the first bristle rows 31 is two, the number of the second bristle rows 32 is two, the height of the first bristle rows 31 is higher than that of the second bristle rows 32, and the first bristle rows 31 and the second bristle rows 32 do not extend to the free end 10b; the number of the first vanes 20 is four, and the first vanes 20 are arranged at equal intervals and spaced apart from each other on the outer peripheral wall of the roller body 10. The ratio of the first length L2 of the portion near the free end 10b to the length L1 of the roller body 10 is about one-sixth (which can be arbitrarily selected between one-sixth and one-fourth), and the height of each first vane 20 gradually decreases within the first length L2 range. The two first bristle rows 31 are arranged on the outer peripheral wall of the roller body 10 in a 180° central symmetry with the rotation center M of the roller body 10 as the symmetry center, and the two second bristle rows 32 are arranged on the outer peripheral wall of the roller body 10 in a 180° central symmetry with the rotation center M of the roller body 10 as the symmetry center; the first bristle rows 31 and the second bristle rows 32 are arranged at intervals, and each first bristle row 31 and each second bristle row 32 are adjacent to one side of different first vanes 20. And a groove structure 10g is provided on the roller body 10 between the first vane 20 and the first bristle row 31 and between the first vane 20 and the second bristle row 32.

[0157] Exemplarily, the number of the first bristle rows 31 is two, the number of the second bristle rows 32 is two, the height of the first bristle rows 31 is higher than that of the second bristle rows 32, and the first bristle rows 31 and the second bristle rows 32 both extend to the free end 10b, and the height of the first bristle rows 31 and the second bristle rows 32 gradually decreases within the second length L3 range from the free end 10b; the number of the first vanes 20 is four, and the first vanes 20 are arranged at equal intervals and spaced apart from each other on the outer peripheral wall of the roller body 10. The ratio of the length L2 of the portion near the free end 10b to the length L1 of the roller body 10 is one-sixth (which can be arbitrarily selected between one-sixth and one-fourth), and the height of each first vane 20 gradually decreases within the L2 range; the two first bristle rows 31 are arranged on the outer peripheral wall of the roller body 10 in a 180° central symmetry with the rotation center M of the roller body 10 as the symmetry center, and the two second bristle rows 32 are arranged on the outer peripheral wall of the roller body 10 in a 180° central symmetry with the rotation center M of the roller body 10 as the symmetry center, and each first bristle row 31 and each second bristle row 32 are arranged at intervals and adjacent to different first vanes 20. And a groove structure 10g is provided on the roller body 10 between the first vane 20 and the first bristle row 31 and between the first vane 20 and the second bristle row 32.

[0158] Please refer to Figure 6, in some embodiments, the first bristle row 31 has a first end 311 connected to the roller body 10, and the extension direction of the line connecting the rotation center M of the roller body 10 and the first end 311 forms an angle a with the extending direction of the first end 311 relative to the roller body 10; and / or,

[0159] The second bristle row 32 has a second end 321 connected to the roller body 10, and the extension direction of the line connecting the rotation center M of the roller body 10 and the second end 321 forms an angle b with the extending direction of the second end 321 relative to the roller body 10, 10° ≤ angle a ≤ 60°; 10° ≤ angle b ≤ 60°, and angle b can be the same as angle a or different from angle a.

[0160] It can be understood that the first end 311 is the end where the first bristle row 31 is connected to the roller body 10, and the second end 321 is the end where the second bristle row 32 is connected to the roller body 10.

[0161] Among them, the angles a and b can be numerical values such as 10°, 12°, 14°, 15°, 18°, 20°, 22°, 24°, 27°, 30°, 32°, 34°, 36°, 38°, 40°, 42°, 44°, 46°, 48°, 50°, 52°, 54°, 55°, 58°, 60°, 65°, etc.

[0162] In some embodiments, 20° ≤ angle a ≤ 45°, and / or, 20° ≤ angle b ≤ 45°.

[0163] It can be understood that the angles a and b can also be 20°, 21°, 22°, 24°, 27°, 28°, 29°, 30°, 31°, 32°, 33°, 35°, 37°, 38°, 40°, 41°, 42°, 44°, 45°, etc.

[0164] Exemplarily, the angle of the second bristle row 32 is the same as or different from the angle of the first bristle row 31.

[0165] For example, the angle b of the second bristle row 32 and the angle a of the first bristle row 31 can both be 45°, or the angle b of the second bristle row 32 can be 60°, and the angle a of the first bristle row 31 can both be 45°.

[0166] Please refer to Figures 8 to 10 , in some embodiments, the first blade 20 has a connecting portion 21 and a cleaning portion 22 opposite to the connecting portion 21, the connecting portion 21 is connected to the roller body 10, and at the free end 10b of the first blade 20, the line connecting the cleaning portion 22 and the connecting portion 21 forms an angle c with the tangent of the outer peripheral wall of the roller body 10.

[0167] Understandably, the connecting portion 21 is the part where the first blade 20 is connected to the roller body 10. According to actual usage requirements, the connecting portion 21 can be integrally formed with the roller body 10, or the connecting portion 21 and the roller body 10 are provided separately and then connected by means such as plugging, clamping, and threaded connection.

[0168] Exemplarily, a corresponding slot structure can be opened on the outer peripheral wall of the roller body 10, and the connecting portion 21 of the blade 20 is inserted into the corresponding slot structure in an inserting manner. In this way, the maintenance cost of the roller brush 100 can be reduced by replacing the blade 20.

[0169] Exemplarily, the connecting portion 21 of the blade 20 can also be integrally formed on the outer peripheral wall of the roller body 10 by in-mold injection. In this way, the integration degree of the blade 20 and the roller body 10 is higher, the reliability is stronger, and it can better meet the usage requirements under the high-speed rotation of the roller brush 100.

[0170] The cleaning portion 22 is the part of the first blade 20 away from the roller body 10 and is also the part directly in contact with the surface G to be cleaned. Here, at the free end 10b of the first blade 20, the extending direction of the cleaning portion 22 from the connecting end 10a to the free end forms an angle c with the radial direction of the roller body 10.

[0171] Here, the range of the angle c can be greater than 75° and less than or equal to 90°. For example, the angle c can be 75°, 76°, 77°, 78°, 79°, 80°, 81°, 82°, 83°, 84°, 85°, 86°, 87°, 88°, 89°, 90°, etc.

[0172] Such a design is more conducive to the shedding of entanglements such as hair and string from the first blade 20. Moreover, at the end of the first blade 20, that is, near the free end 10b, it can also effectively prevent the entanglements from being re-rolled onto the roller brush 100, playing a check valve role.

[0173] In some embodiments, along the direction from the connecting portion 21 to the cleaning portion 22, the thickness of the first blade 20 first decreases and then increases.

[0174] Understandably, above the height of the first blade 20, the first blade 20 presents a structural characteristic of "thick at both ends and thin in the middle". With such a setting, while improving the deformability of the first blade 20, the cleaning ability of the first blade 20 is maintained. The first blade 20 is set thicker at the connecting portion 21 so that when the first blade 20 is inserted and connected to the roller body 10, it can be better inserted into the corresponding slot on the roller body 10 to fix the first blade 20; the main body portion of the first blade 20 is set thinner to make the first blade 20 present a better degree of deformation to remove garbage and other sundries; the cleaning portion 22 of the first blade 20 is set thicker to increase the contact area with the garbage and involve more garbage and other sundries, providing a stronger cleaning force for the roller brush.

[0175] In other embodiments, along the direction from the connecting portion 21 to the cleaning portion 22, the thickness of the first blade 20 gradually decreases.

[0176] Understandably, above the height of the first blade 20, the thickness of the connecting portion of the first blade 20 is the largest and greater than the thickness of other parts.

[0177] In some embodiments, the first blade 20 is flexible and has a hardness between Shore hardness 60A and Shore hardness 85A. Exemplarily, the hardness of the first blade 20 can be Shore hardness 60A, Shore hardness 65A, Shore hardness 70A, Shore hardness 75A, Shore hardness 80A, Shore hardness 85A, etc.

[0178] Please refer to Figure 8 and Figure 9 , in some embodiments, the blade 20 further has a side wall portion 23 connecting the connecting portion 21 and the cleaning portion 22, and a first smooth layer (not shown in the figure) is formed on the side wall portion 23.

[0179] Understandably, one blade 20 should have two side wall portions 23. At the same time, the side wall portion 23 is also the part with the largest outer surface area of the blade 20.

[0180] The first smooth layer is a layer structure formed on the side wall portion 23, and its forming process can be synchronized with the forming of the blade 20. For example, it can be formed by synchronous injection molding during the injection molding process, or, after the blade 20 is formed, the first smooth layer can be formed on the side wall portion 23 by spraying in a subsequent process. The function of the first smooth layer is to reduce the surface friction coefficient of the side wall portion 23 to reduce the probability of dust, dust and other fine particles adhering to the side wall portion 23 of the blade 20.

[0181] Of course, according to actual usage requirements, the first smooth layer can be formed in the entire area of the side wall portion 23, or can be formed in a partial area of the side wall portion 23. For example, the first smooth layer is formed on the side wall portion 23 of the blade 20 close to the connection end 10a, or the first smooth layer is formed on the side wall portion 23 of the blade 20 close to the free end 10b.

[0182] Please refer to Figure 9 , in some embodiments, an anti-slip structure 221 is provided on the side wall portion 23 close to the cleaning portion 22.

[0183] It can be understood that during the cleaning operation, both the cleaning portion 22 and a part of the side wall portion 23 will directly interfere with the surface G to be cleaned. Here, the anti-slip structure 221 can increase the friction between the side wall portion 23 and the surface G to be cleaned, and further improve the cleaning ability of the blade 20. The anti-slip structure 221 can be bumps, corrugated patterns or pits formed on the cleaning portion 22, etc.

[0184] Exemplarily, the anti-slip structure 221 includes a plurality of bumps formed on the side wall portion 23 close to the cleaning portion 22 or on the cleaning portion 22. The bumps are arranged at intervals along the extending direction of the blade 20. The bumps can increase the contact area between the cleaning portion 22 and the surface G to be cleaned, and increase the normal pressure between the two, thereby increasing the friction between the cleaning portion 22 and the surface G to be cleaned.

[0185] Please refer to Figure 11 and Figure 12 , in some embodiments, at the connection end 10a of the first blade 20, the extending direction of the cleaning portion 22 from the connection end 10a to the free end 10b forms an acute angle with the radial direction of the roller body 10.

[0186] It can be understood that in the radial direction of the roller body 10, the angle between the first blade 20 at the connection end 10a and the radial direction is an acute angle d.

[0187] Here, the range of the acute angle d can be greater than 30° and less than 90°. For example, the acute angle d can be 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, etc.

[0188] In this way, the inclined design of the first blade 20 at the connection end 10a is beneficial to the winding of entanglements such as hair and string onto the roller brush 100. At the same time, during the rotation of the roller brush 100, the entanglements are gradually driven to move towards the free end 10b.

[0189] Please refer to Figure 13 , in some embodiments, a notch 24 is provided at the connection end 10a of the first blade 20.

[0190] Understandably, the first blade 20 at the connection end 10a refers to the starting position of the first blade 20 on the roller body 10. Specifically, taking the roller body 10 as a reference, the length of the roller body 10 is L1, and the fourth length of the part of the first blade 20 at the connection end 10a is L5. The ratio range of L5 to L1 is one-eightieth to one-twentieth. The function of the notch 24 is to make it more conducive for entanglements such as hair and string to be wound from the connection end 10a onto the blade 20. For example, taking the length L1 of the roller body 10 as 16 cm, the fourth length L5 is one-eightieth to one-twentieth of L1, approximately 0.2 cm to 0.8 cm. That is, starting from the connection end 10a as the starting point, within the range of extending 0.2 cm towards the free end 10b or extending 0.8 cm towards the free end 10b, it is the part of the first blade 20 at the connection end 10a, and the notch 24 is opened at this position.

[0191] Please refer to Figure 14 and Figure 15 , in some embodiments, the roller brush 100 further includes an end cap 40. An installation hole 10c is opened on the free end 10b, and the end cap 40 is placed in the installation hole 10c. An installation groove 10d is formed by opening on the outer peripheral wall of the roller body 10, and the installation groove 10d communicates with the installation hole 10c. One end of each first blade 20 is inserted into the installation groove 10d from the installation hole 10c.

[0192] Understandably, for the convenience of installing the end cap on the roller body 10, the end cap 40 and the free end 10b of the roller body 10 are provided separately. Specifically, an installation hole 10c is opened on the free end 10b, and the end cap 40 is placed in the installation hole 10c. Here, the hole profile of the installation hole 10c is adapted to the outer contour of the end cap 40.

[0193] In some embodiments, a detachable connection method is adopted between each first blade 20 and the roller body 10. Specifically, the end cap 40 is removed from the free end 10b, one end of each first blade 20 enters from the installation hole 10c and is inserted into the corresponding installation groove 10d. After each first blade 20 is installed, the end cap 40 is covered again.

[0194] Optionally, in other embodiments, the first blade 20 may not be disassembled, that is, the first blade 20 and the roller body 10 are an integral body and are obtained by one-time injection molding.

[0195] Optionally, in other embodiments, the end cap 40 may also be integrally formed on the free end 10b, that is, the end cap 40 and the roller body 10 are an integral body, for example, it can be obtained by one-time injection molding.

[0196] It is understandable that when it is necessary to realize that the blade 20 is detachably connected to the roller body 10, the end cap 40 can be detachably covered on the free end 10b, that is, the end surface of the end cap 40 and the end surface of the free end 10b can be coplanar. Specifically, a mounting hole 10c adapted to the shape of the end cap 40 is opened on the free end 10b, and the end cap 40 is covered in the mounting hole 10c to complete the installation. In some embodiments, the material of the end cap 40 can be different from that of the roller body 10. For example, since the end surface of the end cap 40 is the part that rubs against the winding, in order to increase the interference between the end cap 40 and the winding such as hair and string, the end cap 40 can be selected from a soft rubber with a Shore hardness of 45A-Shore hardness 75A. In other embodiments, the end cap 40 can also be selected from a plastic material, such as polyethylene, polypropylene, polyvinyl chloride, polycarbonate, etc.

[0197] Please refer to Figure 14 In some embodiments, a first structure 41 is provided on the end surface of the end cap 40 to facilitate the winding material to be thrown out from the free end 10b. The first structure 41 includes a protruding structure, which is formed on the end surface of the end cap 40. The arrangement path of the protruding structure can be arranged through the geometric center N of the end cap 40, which means that the entire protruding structure can be strip-shaped, and its length is sufficient to extend and be arranged on the end surface of the end cap 40. In addition, the height of the protruding structure increases along the direction of its own arrangement path. Here, the highest point of the protruding structure in its own height direction is eccentrically arranged with respect to the geometric center N of the end cap 40. With such an arrangement, when impurities such as hair and winding materials fall on the end cap 40, the impurities can be thrown out through the first structure 41, thereby making it easier to remove the impurities. At the same time, the protruding structure can also provide a corresponding fulcrum to facilitate the end cap 40 to be removed from the mounting hole 10c.

[0198] Optionally, in other embodiments, the end cap 40 may not be provided with a protruding structure, but the friction force thereof may be increased by changing the roughness of the end surface of the end cap 40, so as to realize that the winding objects such as hair and string are thrown out of the free end 10b during the rotation of the roller body 10 around the axis. Alternatively, in other embodiments, the first structure 41 includes a protruding point provided on the end cap 40, and the protruding point may be provided at any position except the center of the end cap 40 (for example, at the edge of the end cap 40), and such a configuration is also convenient for the winding objects to be thrown out of the free end 10b.

[0199] Please refer to Figure 15 In some embodiments, the end surface of the end cover 40 is an inclined surface, and the first structure 41 is formed by the inclined surface.

[0200] It can be understood that the inclined surface can be a plane, a curved surface, multiple planes, multiple curved surfaces, and a combination of a plane and a curved surface. From the overall structural point of view, the inclined surface makes the end surface of the end cover 40 appear thicker on one side and thinner on the other side.

[0201] Please refer to Figure 16 , in some embodiments, a first area for arranging the brush row 30 or the second blade is provided on the outer peripheral wall of the roller body 10. At the same time, a second area where the brush row 30 or the second blade is not provided is also provided on the outer peripheral wall of the roller body 10. The second area forms a guiding portion 10e, and the guiding portion 10e is located between two first blades 20.

[0202] Where the brush row 30 is not provided on the roller body 10, that is, in the area between two blades 20, a channel that is beneficial to the air flow during the rotation of the roller brush 100 can be provided, and the collection efficiency of fixed particles, impurities, etc. is higher.

[0203] In this way, in terms of material selection, the number of the brush row 30 or the second blade can be reduced, the cost can be reduced, and the process can be simplified. At the same time, the formed guiding portion 10e is also beneficial to the air flow during the rotation of the roller brush 100, and the collection efficiency of fixed particles, impurities, etc. is higher.

[0204] Of course, in other embodiments, the number of the first blades 20 and the brush row 30, or the number of the first blades 20 and the second blades can be increased. For example, a brush row 30 or two rows of second blades can be arranged between two adjacent first blades 20.

[0205] In some embodiments, a second smooth layer is formed on the outer peripheral wall of the roller body 10.

[0206] It can be understood that the second smooth layer is a layer structure formed on the outer peripheral wall of the roller body 10, and its forming process can be synchronized with the forming of the roller body 10. For example, it is formed on the outer peripheral wall of the roller body 10 by synchronous injection molding during the injection molding process, or it can also be formed on the outer peripheral wall of the roller body 10 by spraying in a subsequent process after the roller body 10 is formed.

[0207] The function of the second smooth layer is to reduce the surface friction coefficient of the outer peripheral wall of the roller body 10, so as to reduce the probability of dust, dust and other fine particles adhering to the outer peripheral wall of the roller body 10, that is, to increase the rate of fine particles passing through the outer peripheral wall of the roller body 10.

[0208] Optionally, a second smooth layer (not shown in the figure) is formed on the groove wall of each guiding portion 10e.

[0209] It can be understood that the function of the second smooth layer is to reduce the surface friction coefficient of the groove wall of the guiding portion 10e, so as to reduce the probability of dust, dust and other fine particles adhering to the groove wall of the guiding portion 10e, that is, to increase the rate of fine particles passing through the guiding portion 10e.

[0210] Of course, according to actual usage requirements, the second smooth layer can be formed in the entire area of the groove wall of the guiding portion 10e, or can be formed in a partial area of the groove wall of the guiding portion 10e. For example, the second smooth layer is formed on the groove wall of the guiding portion 10e close to the connecting end 10a, or the second smooth layer is formed on the groove wall of the guiding portion 10e close to the free end 10b. Here, taking the roller body 10 as a reference object again, for example, the length of the roller body 10 is L1, the fifth length of the groove wall of the guiding portion 10e close to the connecting end 10a is L6, and the ratio range of the fifth length L6 to L1 is three - quarters to five - sixths. Similarly, the sixth length of the groove wall of the guiding portion 10e close to the free end 10b is L7, and the ratio range of the sixth length L7 to L1 is one - sixth to one - quarter. For example, taking the length L1 of the roller body 10 as 16 cm, the length range of L6 is 12 cm to 13.3 cm. Then, starting from the connecting end 10a and extending 12 cm or 13.3 cm towards the free end 10b is the partial range of the groove wall of the guiding portion 10e close to the connecting end 10a. Similarly, the length range of L7 is 2.7 cm to 4 cm. Starting from the free end 10b and extending 2.7 cm or 4 cm towards the connecting end 10a is the partial range of the groove wall of the guiding portion 10e close to the free end 10b.

[0211] In some embodiments, in the direction from the connecting end 10a to the free end 10b, if there are more than two guiding portions 10e, the roughness of the second smooth layer of one of the guiding portions 10e gradually decreases, and the roughness of the second smooth layer of the other guiding portion 10e can gradually increase.

[0212] It can be understood that for the two guiding portions 10e, the roughness on the second smooth layer thereof is inconsistent. Specifically, in the direction from the connecting end 10a to the free end 10b, if the roughness of the second smooth layer of one of the guiding portions 10e gradually decreases, then the closer the guiding portion 10e is to the free end 10b, the smoother its surface is and the smaller the friction coefficient is. Similarly, in the direction from the connecting end 10a to the free end 10b, if the roughness of the second smooth layer of the other guiding portion 10e gradually increases, then the closer the guiding portion 10e is to the free end 10b, the rougher its surface is and the larger the friction coefficient is.

[0213] In this way, during the rotation of the roller brush 100 around the axis, the guiding dynamic balance of the two guiding portions 10e for dust, dust and other fine particles is changing in real - time, which is not conducive to the retention of fine particles in the guiding portion 10e or the adhesion to the groove wall of the guiding portion 10e, and can further improve the rate of fine particles passing through the guiding portion 10e.

[0214] Of course, in other embodiments, the surface roughness of different guiding portions 10e may also be unevenly distributed. For example, in the direction from the connecting end 10a to the free end 10b, the surface roughness of one of the guiding portions 10e first increases and then decreases, while the surface roughness of the other guiding portion 10e first decreases and then increases; alternatively, the surface roughness of corresponding portions of different guiding portions 10e in the radial direction of the roller brush 100 is different.

[0215] Please refer to Figure 17 , in some embodiments, the roller body 10 is provided with a hole structure 10f for accommodating the brush row 30. Among them, the number of the hole structures 10f is between 20 and 35; the aperture r (diameter) range of the hole structure 10f is 1.5 mm ≤ r ≤ 4.0 mm.

[0216] It can be understood that the number of the hole structures 10f can be 22, 25, 27, 29, 32, etc. The number of the hole structures 10f determines the number of brush clusters of the brush row 30.

[0217] The brush row 30 is composed of clusters of bristles, that is, a cluster of bristles is arranged in each hole structure 10f.

[0218] The aperture r of the hole structure 10f can be 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2.0 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3.0 mm, 3.1 mm, 3.2 mm, 3.3 mm, 3.4 mm, 3.5 mm, 3.6 mm, 3.7 mm, 3.8 mm, 3.9 mm, 4.0 mm, etc.

[0219] Meanwhile, the number of bristles implanted within the corresponding hole structure 10f is determined according to the diameter of the bristles. For example, when the aperture r of the hole structure 10f is 1.5 mm and the diameter of the bristles is 0.08 mm, the range of the number of bristles that can be implanted is 200 - 250; when the aperture r of the hole structure 10f is 1.5 mm and the diameter of the bristles is 0.1 mm, the range of the number of bristles that can be implanted is 140 - 180; when the aperture r of the hole structure 10f is 1.5 mm and the diameter of the bristles is 0.127 mm, the range of the number of bristles that can be implanted is 70 - 110; when the aperture r of the hole structure 10f is 1.5 mm and the diameter of the bristles is 0.15 mm, the range of the number of bristles that can be implanted is 50 - 80; and so on. When the aperture r of the hole structure 10f is 4.0 mm and the diameter of the bristles is 0.08 mm, the range of the number of bristles that can be implanted is 2930 - 3330; when the aperture r of the hole structure 10f is 4.0 mm and the diameter of the bristles is 0.1 mm, the range of the number of bristles that can be implanted is 2076 - 2476; when the aperture r of the hole structure 10f is 4.0 mm and the diameter of the bristles is 0.127 mm, the number of bristles that can be implanted is 620 - 660; when the aperture r of the hole structure 10f is 4.0 mm and the diameter of the bristles is 0.15 mm, the range of the number of bristles that can be implanted is 406 - 446.

[0220] Specifically, the process of installing the bristle strips into the hole structure 10f is as follows: First, each bristle strip is folded in half, and then the folded ends of each bristle strip are inserted into the hole structure 10f. Such a setting can improve the rate of implanting the bristle row 30 into the hole structure 10f.

[0221] It should be noted that the number of bristles mentioned above refers to the number of bristles extending out of the hole structure 10f that can be directly seen. However, in the actual installation process, a relatively long bristle is folded in half and then inserted into the hole structure 10f. Therefore, calculated by the above method, the actual number of bristle strips used is half of the above-mentioned number of implanted bristles.

[0222] Of course, in other embodiments, the bristles may not be folded in half but directly inserted into the hole structure 10f. In this case, the number of implanted bristles is the same as the number of bristles. The present disclosure does not limit this.

[0223] Please refer to Figure 18 and Figure 19 , in some embodiments, the roller brush 100 includes a bracket 50 rotatably connected to the first end 10a of the roller body 10, and the bracket 50 is detachably connected to the roller body 10 or the bracket 50 cannot be detached from the roller body 10.

[0224] Understandably, the detachable connection between the bracket 50 and the roller body 10 means that the two are connected through a mutually detachable structure, such as a plug-in structure, a snap connection structure, and a threaded structure.

[0225] The fact that the bracket 50 cannot be detached from the roller body 10 means that the two are connected through a non-detachable structure, such as welding, riveting, etc.

[0226] Please refer to Figure 19 , in some embodiments, the roller brush 100 further includes a bracket 50. The bracket 50 includes a main body portion 51 and support portions 52 provided on opposite sides of the main body portion 51. A transmission portion 10h is formed on the connection end 10a of the roller body 10. The transmission portion 10h passes through the main body portion 51 so that the roller body 10 is rotatably connected to the main body portion 51. The transmission portion 10h is adapted to the output end of the power device of the cleaning device, and the two support portions 52 are used to connect to the housing of the cleaning device.

[0227] In some embodiments, an anti-fooling structure 53 is provided on at least one support portion 52. The provision of the anti-fooling structure 53 can prevent the user from installing the roller brush in the wrong direction.

[0228] In some embodiments, the transmission portion 10h is a toothed structure, and the number of its teeth can be four to seven. The specific number of teeth is not specifically limited in this disclosure.

[0229] Understandably, the bracket 50 is used to improve the stability of the rotation of the roller brush 100 on the cleaning device. The bracket 50 cannot be disassembled from the roller body 10, that is, the transmission portion 10h, the roller body 10, and the main body portion 51 are connected by welding and riveting.

[0230] Specifically, the main body portion 51 and the two support portions 52 are adapted to the cleaning device. The rotation center M of the roller body 10 should coincide with the central axis of the main body portion 51. The transmission portion 10h passes through the main body portion 51 so that the roller body 10 is rotatably connected to the main body portion 51, thereby improving the stability of the roller body 10 during rotation about the axis.

[0231] Since there is a corresponding installation sequence during the installation of the roller brush 100, in order to reduce the probability of misinstallation and achieve a corresponding anti-fooling effect, an anti-fooling structure 53 can be provided on at least one support portion 52. Specifically, the anti-fooling structure 53 can be a rib provided on one end face of one of the support portions 52, thereby forming a structural difference from the other end face of the support portion 52 where no rib is provided; or, the anti-fooling structure 53 can be a convex point provided on one end face of one of the support portions 52, distinguishing the front and back of the bracket 50 from the installation feel, and similarly, it can play an anti-fooling role.

[0232] Furthermore, the anti-fooling purpose can also be achieved by adjusting the number of teeth on the transmission part 10h. This scenario is used when at least two roller brushes 100 are used to ensure that the current roller brush 100 is installed at the corresponding position. For example, the number of teeth of the transmission part 10h of one roller brush 100 can be set to four, while the number of teeth of the transmission part 10h of the other roller brush 100 can be set to seven. In this way, installation can only be achieved when the number of teeth is compatible.

[0233] It can be understood that in this embodiment, the bracket 50 and the roller body 10 are separately provided. When disassembly is required, the transmission part 10h can be removed from the roller body 10, and the bracket 50 can be separated from the roller body 10.

[0234] In some embodiments, the number of roller brushes 100 is two, and the two roller brushes 100 can be arranged side by side in parallel on the output end of the power device of the cleaning equipment. Since there are certain differences in the functions of the roller brushes 100, and the number and positions of the first cleaning member and / or the second cleaning member on the roller body 10 are different, therefore, in use, the two roller brushes 100 should be distinguished in terms of the installation positions. Specifically, the number of teeth of the transmission parts 10h of the brackets 50 of the two roller brushes 100 can be used for distinction. In this way, each roller brush 100 can only be installed on the output end with matching number of teeth, so as to achieve the purpose of differentiated installation.

[0235] Of course, when two roller brushes 100 are used simultaneously, the settings of the first blades 20 and / or the brush rows 30 on each roller body 10 can be the same or different. For example, there is only the first blade 20 on one roller body 10, and the first blade 20 and the brush row 30 are provided on the other roller body 10; or, the first blade 20 and the brush row 30 are provided on both roller bodies 10. The specific settings of the first blade 20 and / or the brush row 30 can refer to the above embodiments and will not be elaborated here.

[0236] In some embodiments, the rotational diameter of at least one brush row 30 on the roller body 10 is greater than the distance between the two support parts 52.

[0237] It can be understood that the rotational diameter of the brush row 30 on the roller body 10 should be the maximum rotational diameter of the brush row 30. For example, when the brush clusters in the brush row 30 are of different lengths, the rotational diameter of the brush row 30 with the longer brush clusters is used as the rotational diameter of the brush row 30 on the roller body 10.

[0238] The distance between the two support parts 52 refers to the minimum distance between the two support parts 52. Then, when the rotational diameter of the brush row 30 on the roller body 10 is greater than the distance between the two support parts 52, the outer edge of the brush row 30 interferes with the bracket 50, and the dirt on the bracket 50 can be cleaned.

[0239] When two roller brushes 100 are provided, the roller brushes 100 can be arranged relative to each other, that is, their free ends 10b are arranged relative to each other, and the overall arrangement is arranged side by side, or the roller brushes 100 can also be arranged in parallel, that is, their free ends 10b are arranged in the same direction, and the overall arrangement is arranged side by side. The number, arrangement form and structural form of the first cleaning member and the second cleaning member on each roller brush 100 can be adaptively adjusted.

[0240] Exemplarily, one of the roller brushes 100 is provided with only the first cleaning member, and the other roller brush 100 is provided with the first cleaning member and the second cleaning member, or, both roller brushes 100 are provided with the first cleaning member and the second cleaning member, but the length, height, thickness, material and layout of the first cleaning member are different, and the length, height, thickness, material and layout of the second cleaning member are also different.

[0241] Optionally, the second cleaning member of the two roller bodies 10 is a bristle row 30, which includes a first bristle row 31 and a second bristle row 32, and the height of the first bristle row 31 is greater than the height of the second bristle row 32. When the two roller bodies 10 rotate relative to each other around the axis, the first bristle row 31 of each roller body 10 is relatively arranged and rotates synchronously. Alternatively, the first bristle row 31 of one roller body 10 and the second bristle row 32 of the other roller body 10 are relatively arranged and rotate alternately.

[0242] Please refer to Figure 19 In some embodiments, the roller brush 100 includes a barrier member 60 which is sleeved on the connecting end 10 a of the roller body 10 and disposed on the main body 51 , and the rotation diameter of the barrier member 60 on the roller body 10 is greater than the distance between the two support portions 52 .

[0243] It can be understood that the blocking member 60 is used to prevent hair, ropes and other entanglements from being rolled into the transmission part 10h of the bracket 50, thereby affecting the smoothness of the rotation of the roller body 10 around the axis. Generally, the blocking member 60 is an annular brush, which is adapted to the connecting end 10a of the roller body 10 and rotates around the axis synchronously with the roller body 10. Specifically, a corresponding step structure is provided on the roller body 10, and the blocking member 60 is arranged at the step structure.

[0244] Since the rotation diameter of the barrier 60 on the roller body 10 is larger than the distance between the two support parts 52, the outer edge of the barrier 60 interferes with the bracket 50, and there is no gap between the outer wall of the barrier 60 and the inner walls of the two support parts for the winding to enter, so the winding can be blocked outside the roller body 10, or the winding can be rolled up on the barrier 60. The barrier 60 can be made of a rubber strip, a wool strip, etc.

[0245] Please refer to Figure 20 and Figure 21 The present application also provides a roller brush assembly 1000, including:

[0246] The housing 200, the housing 200 has a receiving cavity 201, and

[0247] the above-mentioned roller brush 100;

[0248] wherein, the roller brush 100 is arranged in the receiving cavity 201, and the connecting end 10a of the roller brush 100 is connected to the inner wall of the receiving cavity 201, and the free end 10b of the roller brush 100 hangs in the receiving cavity 201; an air suction port 202 is formed on the housing 200, and the position of the air suction port 202 corresponds to the free end 10b of the roller brush 100.

[0249] It can be understood that the housing 200 should be installed at the air suction part of the cleaning device to realize the connection between the air suction port 202 and the air inlet channel of the cleaning device. At the same time, the roller brush 100 rotates around its own axis in the receiving cavity 201, and can realize the transmission of dirt and winding objects entering the receiving cavity 201 from the connecting end 10a to the free end 10b, and the dirt, winding objects, etc. fall off from the free end 10b and enter the air suction port 202.

[0250] Based on the above-mentioned roller brush 100, the roller brush assembly 1000 provided by the present invention effectively collects the dirt and winding objects entering the receiving cavity 201 under the winding guidance of the roller brush 100 and sucks them in through the air suction port 202.

[0251] In some embodiments, the rotation diameter of the brush row 30 of the roller brush 100 is greater than the inner diameter of the receiving cavity 201.

[0252] It can be understood that the rotation diameter of the brush row 30 of the roller brush 100 refers to the maximum rotation diameter of the brush row 30. For example, when the brush rows in the brush row 30 are of different lengths, the rotation diameter of the longer brush row is used as the rotation diameter of the brush row 30 on the roller body 10. In this way, the outer edge of the roller brush 100 forms an interference with the inner wall of the receiving cavity 201, and the brush row 30 of the roller brush 100 continuously cleans the inner wall of the receiving cavity 201 to reduce the probability of dust staying on the inner wall of the receiving cavity 201.

[0253] Please refer to Figure 21 , in some embodiments, an installation groove and a transmission installation hole are formed on the inner wall of the receiving cavity 201 of the housing 200. An articulated column is arranged in the installation groove, and an installation ear articulated with the articulated column is arranged on the bracket 50 of the roller brush 100, and the transmission part 10h of the bracket 50 of the roller brush 100 passes through the transmission installation hole.

[0254] Understandably, during the installation process, the transmission part 10h of the bracket 50 of the roller brush 100 is aligned with the transmission installation hole of the housing 200. At the same time, the installation ear is inserted into the corresponding installation groove, and then the hinge column is passed through the installation ear and installed on the housing. In this way, the connection end 10a of the roller brush 100 can be hinged and rotated around the hinge point of the installation ear and the hinge column, so that the free end 10b of the roller brush 100 protrudes out of the accommodating groove 201, facilitating the user to remove the winding from the free end 10b without disassembling the roller brush 100.

[0255] In addition, when the roller brush 100 needs to be completely removed from the accommodating groove 201, the hinge column needs to be removed from the housing 200, so that the installation ear is removed from the installation groove, and then the roller brush 100 can be taken out.

[0256] Please refer to Figure 22 and Figure 23 In some embodiments, the number of the roller brushes 100 is two, and the two roller brushes 100 are oppositely arranged in the accommodating cavity 201, or the two roller brushes 100 are arranged side by side in the accommodating cavity 201.

[0257] Understandably, the two roller brushes being oppositely arranged in the accommodating cavity 201 means that the free ends 10b of the two roller brushes 100 are oppositely arranged, while the connection ends 10a of the two roller brushes 100 are respectively connected to the opposite inner walls in the accommodating cavity 201.

[0258] The two roller brushes 100 being arranged side by side in the accommodating cavity 201 means that the connection ends 10a of the two roller brushes 100 are respectively connected to the same inner wall in the accommodating cavity 201, and the free ends 10b of the two roller brushes 100 also point to the same inner wall in the accommodating cavity 201.

[0259] In one embodiment, different first cleaning members with different structures are provided on different roller brushes 100; or, different second cleaning members with different structures are provided on different roller brushes 100; the first cleaning members and the second cleaning members provided on different roller brushes 100 are all different.

[0260] Understandably, when the first cleaning members are provided on each roller brush 100, the structures of the first cleaning members are different. Here, the difference can refer to the length, height, thickness, material, and layout form of the first cleaning members. Similarly, when the second cleaning members are provided on each roller brush 100, the structures of the second cleaning members are different. Here, the difference can refer to the length, height, thickness, material, and layout form of the second cleaning members.

[0261] The embodiment of the present application also provides a cleaning device, including the above-mentioned roller brush assembly 1000.

[0262] Based on the above roller brush assembly 1000, the cleaning device provided by the present utility model has higher cleaning performance and cleaning efficiency, and can handle usage scenarios with more entanglements such as hair.

[0263] An embodiment of the present application further provides a cleaning system, including a base station and the above cleaning device, wherein the base station is used to dock the cleaning device.

[0264] Based on the above cleaning device, the cleaning system provided by the present utility model has higher cleaning efficiency for the cleaning device by the base station, is easier to maintain, and saves the trouble of secondary cleaning of the cleaning device by the user.

[0265] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A roller brush is configured to be disposed on a cleaning device and is used for cleaning a surface to be cleaned, and is characterized in that: A roller body, the roller body having a first end and a second end, the first end being a connection end, the second end being a free end, the connection end being configured to be connected to an output end of a power device of the cleaning device, and the free end being in a suspended state when installed on the cleaning device; A first cleaning member, the first cleaning member including a plurality of first blades, each of the first blades being disposed on an outer peripheral wall of the roller body, and each of the first blades extending spirally in a direction from the first end to the second end; A second cleaning member, the second cleaning member including a brush row, the brush row being disposed on the outer peripheral wall of the roller body; The first blade interferes with the surface to be cleaned in a working state, wherein the interference amount is K, 0 < K ≤ 1 mm.

2. The roller brush according to claim 1, characterized in that: 0 < K ≤ 0.5 mm.

3. The roller brush according to claim 1, wherein: The brush row extends from the first end towards the second end, and the brush row is disposed adjacent to at least one of the first blades.

4. The roller brush according to claim 1, characterized in that: The number of the first cleaning members is a multiple or a divisor of the number of the second cleaning members.

5. The roller brush according to any one of claims 1-4, characterized in that: The number of the first cleaning members is four, and the number of the second cleaning members is two or four.

6. The roller brush according to claim 5, characterized in that: Each of the first cleaning members and each of the second cleaning members are spaced apart from each other at equal intervals on the outer peripheral wall of the roller body, the second cleaning member is located between two adjacent first cleaning members, and at least one second cleaning member is disposed adjacent to one of the first cleaning members.

7. The roller brush according to claim 6, characterized in that: Between two adjacent first cleaning members, the distance from at least one second cleaning member to one of the first cleaning members is less than the distance from the current second cleaning member to the other first cleaning member.

8. The roller brush according to any one of claims 1-4 and 6, characterized in that: The second cleaning member includes a first brush row and a second brush row; Wherein, the height of the first brush row is different from the height of the second brush row; or, The height of the first brush row is equal to the height of the second brush row, and the hardness of the first brush row is different from the hardness of the second brush row.

9. The roller brush according to claim 8, characterized in that: The first brush rows are disposed opposite to each other in the circumferential direction of the roller body, and the second brush rows are disposed opposite to each other in the circumferential direction of the roller body; the first brush rows and the second brush rows are spaced apart.

10. The roller brush according to claim 8, characterized in that: In the direction from the first end to the second end, the height of the brush clusters of the same first brush row is different, or the height of the brush clusters of the same second brush row is different.

11. The roller brush according to any one of claims 1-4, 6, 9-10, characterized in that: A groove structure is further disposed on the surface of the roller body, and the groove structure has at least one of the following: the groove structure is located between the first cleaning member and the second cleaning member; the groove structure is disposed adjacent to the second cleaning member; the number of the groove structures is the same as the number of the second cleaning members.

12. The roller brush according to any one of claims 1-4, 6, 9-10, characterized in that: The height of the first cleaning member gradually decreases within a first length range from the second end, wherein the ratio of the first length to the length of the roller body is 1 / 6 - 1 / 4; and / or, The second cleaning member is not disposed within a second length range from the second end, wherein the ratio of the second length to the length of the roller body is 1 / 6 - 1 / 4; and / or, The height of the first cleaning member and the height of the second cleaning member decrease synchronously within a first length range from the second end, wherein the ratio of the first length to the length of the roller body is 1 / 6 to 1 / 4.

13. The roller brush according to claim 12, characterized in that: The second length is greater than the first length; and / or, the projection point on the roller body of the extension end of the brush tuft closest to the second end in the second cleaning member in the radial direction of the roller body to the second end has a third length not greater than the first length.

14. The roller brush according to any one of claims 1-4, 6, 9-10, 13, characterized in that: The brush row has a fixed end connected to the roller body, and the extension direction of the connection line between the rotation center of the roller body and the fixed end forms an angle with the extending direction of the fixed end relative to the roller body, where 10° ≤ the angle ≤ 60°.

15. The roller brush according to claim 8, wherein: The first brush row has a first fixed end connected to the roller body, and the extension direction of the connection line between the rotation center of the roller body and the first fixed end forms an angle a with the extending direction of the first fixed end relative to the roller body; The second brush row has a second fixed end connected to the roller body, and the extension direction of the connection line between the rotation center of the roller body and the second fixed end forms an angle b with the extending direction of the second fixed end relative to the roller body; the angle a is the same as the angle b, or the angle a is different from the angle b, or 20° ≤ the angle a ≤ 45°, 20° ≤ the angle b ≤ 45°.

16. The roller brush according to any one of claims 1-4, 6, 9-10, 13, 15, characterized in that: The first blade has a connecting portion and a cleaning portion opposite to the connecting portion, the connecting portion is connected to the roller body, and the first blade has at least one of the following: At the first end of the first blade, the extending direction of the cleaning portion from the first end to the second end forms an acute angle with the radial direction of the roller body; In the direction from the connecting portion to the cleaning portion, the thickness of the first blade shows a decreasing trend; An anti-slip structure is formed on the first blade; A notch is provided at the end of the first blade near the first end; The first blade has flexibility; The hardness of the first blade is Shore hardness 60A to Shore hardness 85A.

17. The roller brush according to claim 1, characterized in that: The roller brush further includes an end cap, an installation hole is opened on the second end, the end cap is placed in the installation hole, an installation groove is formed on the outer peripheral wall of the roller body, the installation groove is communicated with the installation hole, and each first blade is inserted into the installation groove from the installation hole, or the first blade is integrally formed in the installation groove.

18. The roller brush according to claim 1, characterized in that: The roller brush further includes an end cap, the end cap is integrally formed on the second end, or the end cap is detachable from the second end.

19. The roller brush according to claim 17 or 18, characterized in that: A first structure for facilitating the winding to be thrown out from the second end is provided on the end face of the end cap, wherein the first structure has one of the following: The first structure includes a convex structure, the layout path of the convex structure passes through the geometric center of the end cap, and the height of the convex structure shows an increasing trend along its own layout path direction; The first structure includes a convex point, and the convex is provided at any position except the geometric center of the end cap; The end face of the end cap is an inclined surface, and the inclined surface forms the first structure.

20. The roller brush according to claim 17 or 18, characterized in that: The end cap has at least one of the following: The end cap has flexibility; The surface roughness of the end face of the end cover is greater than 30; The hardness of the end cover is Shore hardness 45A to Shore hardness 75A.

21. The roller brush according to claim 5, characterized in that: When the number of the first cleaning members is four and the number of the second cleaning members is two, a first area for arranging the second cleaning members and a second area without the second cleaning members are further provided on the outer peripheral wall of the roller body, the second area forms a guiding portion, and the guiding portion is located between the two first cleaning members.

22. The roller brush according to claim 21, wherein: In the direction from the first end to the second end, the number of the guiding portions is two, wherein the surface roughness of the guiding portion gradually decreases, and / or the surface roughness of the guiding portion gradually increases; and / or the surface roughness of the corresponding parts of different guiding portions in the radial direction of the roller brush is different.

23. The roller brush according to any one of claims 1-4, 6, 9-10, 13, 17-18, 21, characterized in that: The roller body is provided with a hole structure for accommodating the second cleaning member, and the aperture r of the hole structure ranges from 1.5 mm ≤ r ≤ 4.0 mm; and / or the number range of the hole structures is 20 to 35; and / or when the aperture r of the hole structure is 1.5 mm, the number S of the implanted bristles of the second cleaning member ranges from 50 ≤ S ≤ 250.

24. The roller brush according to claim 8, characterized in that: The roller brush includes a bracket rotatably connected to the first end of the roller body, and the bracket is detachably connected to the roller body or the bracket cannot be detached from the roller body.

25. The roller brush according to claim 24, wherein: The bracket includes a main body portion and support portions provided on opposite sides of the main body portion, and the two support portions are used for connecting to the housing of the cleaning device; a transmission portion is provided at the first end of the roller body, and the transmission portion is adapted to the output end of the power device of the cleaning device; Wherein, at least one of the support portions is provided with an anti-fooling structure, and / or the number of teeth of the transmission portion is four to seven.

26. The roller brush according to claim 24 or 25, characterized in that: When the roller body rotates, the first bristle row interferes with the bracket; and / or the second bristle row does not interfere with the bracket.

27. The roller brush according to claim 24 or 25, characterized in that: A barrier member is provided between the roller body and the bracket, the barrier member rotates with the roller body, and the barrier member interferes with the bracket.

28. A roller brush assembly, characterized in that, Comprising: A housing having an accommodation cavity, and The roller brush according to any one of claims 1 to 27; Wherein, the roller brush is arranged in the accommodation cavity, and an air suction port is formed in the housing, and the air suction port corresponds to the second end of the roller brush.

29. The roller brush assembly according to claim 28, wherein: The rotation diameter of the second cleaning member of the roller brush is greater than the inner diameter of the accommodation cavity.

30. The roller brush assembly according to claim 28 or 29, characterized in that: The number of the roller brushes is two, and each roller brush is relatively arranged in the accommodation cavity, or each roller brush is arranged side by side in the accommodation cavity.

31. The roller brush assembly according to claim 30, wherein: The first cleaning members with different structures are arranged on different roller brushes; or, the second cleaning members with different structures are arranged on different roller brushes; both the first cleaning members and the second cleaning members arranged on different roller brushes are different.

32. A cleaning device, characterized in that: Comprising the roller brush assembly according to any one of claims 28 to 31.

33. A cleaning system, characterized in that: Comprising a base station and the cleaning device according to claim 32, wherein the base station is used for docking the cleaning device.

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