Roller brush assembly, roller brush device, cleaning apparatus and cleaning system

Abstract

A roller brush assembly comprising at least two roller brushes, wherein each roller brush comprises a connecting end (11) and a free end, the connecting end (11) being driven by a drive device, the free ends of the at least two roller brushes being arranged oppositely, and a gap being provided between the oppositely arranged free ends.

Description

Roller brush assembly, roller brush device, cleaning apparatus and cleaning system CROSS REFERENCE TO RELATED APPLICATIONS This disclosure claims priority for Chinese patent applications No. 202421529338.1, No. 202410869770.3, No. 202421529942.4 and No. 202421529917.6, filed on June 28, 2024, which are incorporated herein by reference in their entirety. TECHNICAL SECTOR This disclosure pertains to the technical sector of cleaning appliances, and specifically relates to a set of rolling brushes, a rolling brush device, a cleaning appliance and a cleaning system. BACKGROUND OF THE TECHNOLOGY Automatic cleaning devices are a type of appliance that can perform cleaning tasks automatically. They are primarily used in domestic, commercial, and industrial settings, effectively saving time and effort and improving cleaning efficiency. Robotic vacuum cleaners are a common type of automatic cleaning device. Using robotic vacuum cleaners can not only reduce workload but also improve hygiene and quality of life. SUMMARY OF THE INVENTION In a first aspect of this disclosure, a set of rolling brushes is provided. The set of rolling brushes includes at least two rolling brushes, wherein each rolling brush includes a connecting end and a free end, the connecting end being driven by a drive device, the free ends of the at least two rolling brushes being arranged opposite each other, and a recess being arranged between the oppositely arranged free ends. In some embodiments, the roller brush includes a tree stem and a cleaning portion disposed on the tree stem; the cleaning portion comprises a blade and / or first bundles of bristles, or the cleaning portion forms a whole by integration with the blade and the first bundles of bristles. In some embodiments, when the cleaning part includes the blade, the blade is detachably mounted on the tree stem. In some embodiments, when the cleaning part includes the blade and the first bundles of bristles, there is a plurality of blades, the plurality of blades are distributed circumferentially with respect to the stem, and the first bundles of bristles are arranged between adjacent blades circumferentially to the stem. In some embodiments, when the cleaning portion includes the first bundles of bristles, the first bundles of bristles include a fixed end and a movable end, the fixed end being connected to the tree stem, and the movable end extending in a direction away from the tree stem and inclined towards the free end of the rolling brush. In some embodiments, the outer wall of the roller brush may undergo elastic deformation, or the outer wall of the roller brush is rigid. In some embodiments, when the cleaning part includes the blade, the shaft and the blade are formed as a single unit. In some embodiments, the tree stem and blade are manufactured by two-color injection molding, in-mold injection molding, or liquid injection molding or hydroforming. In some embodiments, the tree stem is made of PC, ABS or PA, or the tree stem is made of a combination of PC and ABS, or a combination of PC and GF, or a combination of ABS and GF, or a combination of PC, ABS and GF, or a combination of PA and GF; and The blade is made of TPU or TPE or silica gel or rubber. In some embodiments, the roller brush comprises a shaft and an end cap, wherein the end cap is arranged on the shaft to form the free end of the roller brush, and the end surface of the end cap is arranged obliquely. In some embodiments, the end surfaces of the oppositely arranged end caps of the rolling brushes are inclined in the same direction. In some embodiments, the end surface is a plane or an arc surface. In some embodiments, there is a difference in rotational speed between the two oppositely arranged rolling brushes. In some embodiments, the roller brush assembly further includes a first locking part, and at least part of the first locking part is located between the roller brushes arranged in opposite directions. In some embodiments, the roller brush assembly comprises a roller brush compartment, and the first locking part is arranged on an inner wall of the roller brush compartment. In some embodiments, the roller brush assembly comprises the roller brush compartment, the roller brush compartment is provided with a dust collection port, the dust collection port is configured to communicate with a dust box, and the first locking part is arranged on the inner wall of the roller brush compartment on the side away from the dust collection port and is arranged opposite the dust collection port. In some embodiments, the first locking part includes a connecting segment and a locking segment; the connecting segment is connected to the inner wall of the rolling brush compartment, the locking segment is connected to the connecting segment, and the extension direction of the locking segment is different from that of the connecting segment. In some embodiments, the roller brush assembly includes a support, the support includes a sleeve stem, and the roller brush is sleeved over the sleeve stem. In some embodiments, the stem includes an inner stem and an outer stem; the outer stem is encased in the outer peripheral side of the inner stem, the inner stem is provided with a bearing, and the inner stem is connected to an inner wall of the outer stem through the bearing. In some embodiments, there are at least two bearings, and the at least two bearings are arranged in the axial direction of the inner stem. In some embodiments, the bearing is an oil-containing bearing and / or a ball bearing. In some embodiments, there are two supports, and the sleeve stems of the two supports are either the same or different. In some embodiments, the roller brush is provided with a sleeve hole, and the roller brush is sleeved over the sleeve stem through the sleeve hole, and the sleeve holes of various roller brushes are either the same or different. In some embodiments, the roller brush assembly includes a roller brush compartment, which is equipped with a dust collection port. The dust collection port is configured to communicate with a dust box, and the free ends of the at least two roller brushes are arranged obliquely towards the dust collection port. In some embodiments, the roller brush assembly includes a support; the roller brush is rotatably arranged on the support, one end of the support is connected to the drive device, and the other end of the support is angled towards the dust collection port. In some embodiments, the roller brush assembly includes a main brush cover, and a dust inlet is arranged in the main brush cover, and the opening angle of the dust inlet is adapted to the angle formed between the two roller brushes. In some embodiments, at least one of the rolling brushes includes: a main rolling brush body comprising a shaft and a blade, the blade being disposed on the outer peripheral side of the shaft, and a second locking part disposed on an end portion of the main rolling brush body, a portion of the blade being inclined towards the direction of the shaft and inserting into the second locking part. In some embodiments, the blade includes: a main blade body; and an extension portion disposed in an end portion of the main blade body, wherein a portion of the extension portion is inserted into the second locking portion, the extension portion being located on an inner side of an outer edge of the main blade body in the radial direction, and the extension portion is located on the inner side of the outer edge of the second locking portion. In some embodiments, the radial height of at least part of the extension portion is less than the radial height of the second locking portion. In some embodiments, there is a plurality of blades, the plurality of blades are distributed circumferentially to the shaft, and the radial distance between the extension portion and the shaft is less than the radial distance between the outer edge of the main blade body and the shaft. In some embodiments, at least part of an outer edge of the extension portion is a guide segment, which is arranged between the second locking part and the main blade body. In some embodiments, the guiding segment includes an oblique segment and / or an arc segment. In some embodiments, the ratio of the minimum radial distance between the guide segment and the shaft stem to the radial distance between the outer edge of the main blade body and the shaft stem is in the range of 0.5 to 0.9. In some embodiments, the tree stem is provided with an end plate, a plurality of blades are embedded in the end plate, the blades extend beyond the side of the end plate away from the main blade body, and the second locking part is located on the side of the end plate away from the main blade bodies. In some embodiments, the tree stem includes: a main tree stem body; and an annular flange disposed on an end portion of the main tree stem body, the second locking portion being sleeved over the annular flange. In some embodiments, the second locking part includes second bundles of bristles distributed circumferentially to the tree stem, and the extension portion is inserted into a gap between the second bundles of bristles. In some embodiments, the second locking part includes an annular part, the annular part is sheathed over the tree stem, and the second bundle of bristles includes a fixed end and a free end, the fixed end being connected to the annular part, and the free end extending in a direction away from the tree stem. In some embodiments, the second bundle of bristles is made of at least one of a rubber material, a plastic fiber material, an inorganic fiber material, a vegetable fiber material, and an animal fiber material. In some embodiments, the second locking part includes an annular part, the annular part is sleeved over the tree stem, and the annular part is provided with a groove into which the extension portion is to be inserted. In some embodiments, the second locking part is made of a felt material. In some embodiments, the second locking part and the tree stem are formed as a single unit or have a split structure. In some embodiments, the roller brush assembly is applied in a cleaning apparatus, and the cleaning apparatus includes a compartment body to house the roller brush, and the second locking part is located between the arbor stem and the compartment body and fills the gap between the arbor stem and the compartment body, and stops hair from moving into the gap. In some embodiments, there is no contact between the blade and the compartment body, and interference or physical contact occurs between the second locking part and the compartment body. In some embodiments, at least part of the second locking part is elastic, and the second locking part is always in close contact with the compartment body in a process of relative movement of the second locking part and the compartment body. In some embodiments, the rolling brush assembly includes a compartment body, the rolling brush is arranged in the compartment body, and the compartment body is provided with: a main brush port, the blade penetrating the main brush port to interfere with a surface to be cleaned; and a coupling cavity located on the outer peripheral side of the second locking part and interfering with the second locking part. In some embodiments, the connection end of each roller brush is in power connection with the drive device via a rotating shaft, and the connection end of the roller brush is provided with a second locking part. In a second aspect of this disclosure, a rolling brush device is provided. The rolling brush device includes: the aforementioned rolling brush assembly; a transmission portion comprising a first transmission mechanism and a second transmission mechanism, wherein the first transmission mechanism is connected to a first rolling brush, and the second transmission mechanism is connected to a second rolling brush; and a drive portion configured to drive the first transmission mechanism and the second transmission mechanism to drive the first rolling brush and the second rolling brush to oscillate, and wherein there is a difference in rotational speed between the first rolling brush and the second rolling brush. In some embodiments, the rolling brush device further includes: an installation frame, in which the drive portion and the transmission portion are arranged in the installation frame, and the installation frame is connected to the main body of a cleaning apparatus. In some embodiments, the first roller brush and the second roller brush are arranged coaxially. In some embodiments, there is contact between the first roller brush and the second roller brush, or there is no contact between the first roller brush and the second roller brush. In some embodiments, the ratio of the rotational speed of the first rolling brush to the rotational speed of the second rolling brush is in the range of 0.8 to 0.99. In some embodiments, the drive portion further includes: a first drive part, an output shaft of the first drive part being in a power connection with the first transmission mechanism; and a transmission shaft, the first transmission mechanism being in a power connection with the second transmission mechanism via the transmission shaft; wherein there is a difference in transmission ratio between the first transmission mechanism and the second transmission mechanism. In some embodiments, the first transmission mechanism includes a first gear set, the first gear set includes a first output end and a second output end, the first output end is in feed connection with the first rolling brush, and the second output end is in feed connection with the drive shaft; the second transmission mechanism includes a second gear set, the drive shaft is in feed connection with the second gear set, and an output end of the second gear set is in feed connection with the second rolling brush. In some embodiments, the first gear set includes: a first gear connected to the output shaft of the first drive part; a second gear, the first gear being in a feed connection with the second gear, and the second gear being the first output end and being arranged coaxially with the first rolling brush; and a third gear, the first gear or the second gear being in a feed connection with the third gear, and the third gear being the second output end and being connected to the drive shaft. In some embodiments, the first set of gears further includes: a fourth gear arranged between the first gear and the second gear and meshed with the first gear and the second gear, and a fifth gear arranged between the first gear and the third gear and meshed with the first gear and the third gear; or the fifth gear being arranged between the second gear and the third gear and meshed with the second gear and the third gear. In some embodiments, the second gear set includes: a seventh gear connected to the drive shaft, and an eighth gear in feed connection with the seventh gear, the eighth gear being the third end of the output and being connected to the second rolling brush, and being arranged coaxially with the second rolling brush. In some embodiments, the second set of gears also includes: a ninth gear arranged between the seventh gear and the eighth gear and meshed with the seventh gear and the eighth gear. In some embodiments, the drive portion further includes: a first drive part, an output shaft of the first drive part being in a power connection with the first transmission mechanism; and a second drive part, an output shaft of the second drive part being in a power connection with the second transmission mechanism; wherein there is a difference in output rotational speed between the first drive part and the second drive part; and / or, there is a difference in transmission ratio between the first transmission mechanism and the second transmission mechanism. In some embodiments, the first transmission mechanism includes a first set of gears, and one output end of the first set of gears is in feed connection with the first rolling brush, and the second transmission mechanism includes a second set of gears, and one output end of the second set of gears is in feed connection with the second rolling brush. In some embodiments, the first transmission mechanism further includes: a first housing, in which the first gear set is located in the first housing, the first drive part is located outside the first housing, the output shaft of the first drive part penetrates the first housing to be in power connection with the first gear set, and a rotary shaft of the first rolling brush penetrates the first housing to be in power connection with the first gear set. In some embodiments, the second transmission mechanism further includes: a second housing, in which the second set of gears is located in the second housing, and a rotating shaft of the second rolling brush penetrates the second housing to be in power connection with the second set of gears. In a third aspect of this disclosure, a cleaning apparatus is provided, and the cleaning apparatus includes: a main apparatus body; and the aforementioned rolling brush assembly, the rolling brush assembly being connected to the main apparatus body. In a fourth aspect of this disclosure, a cleaning apparatus is provided, and the cleaning apparatus includes the aforementioned rolling brush assembly. In a fifth aspect of this disclosure, a cleaning system is provided. The cleaning system includes: the roller brush assembly mentioned above or the automatic cleaning apparatus mentioned above; and a base station configured to provide maintenance to the automatic cleaning apparatus. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic structural diagram of a first rolling brush and a second rolling brush according to a first embodiment of the present disclosure; Figure 2 is a first schematic structural diagram of the first rolling brush according to the first embodiment of the present disclosure; Figure 3 is a second schematic structural diagram of the first rolling brush according to the first embodiment of the present disclosure; Figure 4 is a first schematic diagram of the three-dimensional structure of a first implementation of the rolling brush assembly according to an embodiment of the present disclosure; Figure 5 is a second schematic diagram of the three-dimensional structure of the first implementation of the rolling brush assembly according to an embodiment of the present disclosure; Figure 6 is a first schematic diagram of the three-dimensional structure of a second implementation of the rolling brush assembly according to an embodiment of the present disclosure; Figure 7 is a second schematic diagram of the three-dimensional structure of the second implementation of the rolling brush assembly according to an embodiment of the present disclosure; Figure 8 is a schematic diagram of the three-dimensional structure of a first rolling brush, a second rolling brush, and a first locking part according to an embodiment of the present disclosure; Figure 9 is a schematic diagram of the three-dimensional structure of a first locking part according to an embodiment of the present disclosure; Figure 10 is a first schematic diagram of the three-dimensional structure of a part of a first support according to an embodiment of the present disclosure; Figure 11 is a second schematic diagram of the three-dimensional structure of a part of a first support according to an embodiment of the present disclosure; Figure 12 is a cross-sectional view of a first support according to an embodiment of the present disclosure; Figure 13 is a schematic diagram of the three-dimensional structure of a first rolling brush according to an embodiment of the present disclosure; Figure 14 is a schematic diagram of the three-dimensional structure of a first support according to an embodiment of the present disclosure; Figure 15 is a schematic diagram of the three-dimensional structure of a second rolling brush of the present embodiment; Figure 16 is a schematic diagram of the three-dimensional structure of a second support of the present embodiment; Figure 17 is a schematic diagram of the three-dimensional structure of a third implementation of the rolling brush assembly according to an embodiment of the present disclosure; Figure 18 is a schematic diagram of the three-dimensional structure of a rolling brush in the third implementation of the rolling brush assembly according to an embodiment of the present disclosure; Figure 19 is a schematic diagram of the three-dimensional structure of a support in the third implementation of the rolling brush assembly according to an embodiment of the present disclosure; Figure 20 shows a schematic structural diagram of a rolling brush from an angle; Figure 21 shows a schematic structural diagram of the rolling brush from another angle; Figure 22 shows a schematic structural diagram of the main body of the odant brush from an angle; Figure 23 shows a schematic structural diagram of the main body of the rolling brush from another angle; Figure 24 shows a schematic structural diagram of a second locking part; Figure 25 shows a schematic structural diagram of another second locking part; Figure 26 shows a schematic structural diagram of the rolling brush assembly from an angle (the main brush cover is not shown); Figure 27 shows a schematic structural diagram of the roller brush assembly from another angle (the second locking part is not shown); Figure 28 shows an enlarged schematic structural diagram of part A of Figure 25 (the second locking part is not shown); Figure 29 shows a schematic structural diagram of the roller brush assembly from another angle; Figure 30 shows an enlarged schematic structural diagram of part B of Figure 27; Figure 31 shows a schematic structural diagram of the main body of the rolling brush from yet another angle; Figure 32 shows a schematic structural diagram of the rolling brush device from an angle; Figure 33 shows a schematic structural diagram of the rolling brush device from another angle; Figure 34 shows a schematic structural diagram of the rolling brush device from yet another angle; Figure 35 shows a schematic structural diagram of the rolling brush device from yet another angle; Figure 36 shows a schematic structural diagram of a first transmission mechanism; Figure 37 shows a schematic structural diagram of a second transmission mechanism; Figure 38 shows a schematic structural diagram of a rolling brush device, a transmission portion and a drive portion from an angle; Figure 39 shows a schematic structural diagram of the rolling brush assembly, the transmission portion, and the drive portion from another angle; Figure 40 shows a schematic structural diagram of the rolling brush assembly, the transmission portion, and the drive portion from yet another angle; and Figure 41 shows a schematic structural diagram of a set of rolling brushes, a transmission portion, a first drive part and a second drive part from an angle. Description of the reference symbols: 11- connecting end; 12- end cap; 2- blade; 3- first bristle bundle; 4- first support; 41- sleeve stem; 42- bearing; 5- first roller brush; 51- first sleeve hole; 6- second support; 7- second roller brush; 71- second sleeve hole; 8- first locking part; 81- connecting segment; 82- locking segment; 9- main brush cap; 91- dust collection port; 100- roller brush; 200- roller brush set; 201- main body of rolling brush; 202- second locking part; 300- compartment body; 2011, tree stem; 2012, blade; 2013, end plate; 2021, annular part; 2022, second bristle bundle; 2023, groove; 31- main brush compartment; 32- main brush cover; 33- coupling cavity; 34- main brush port; 111- main body of shaft stem; 112- annular flange; 121- extension portion; 122- main blade body; 302- transmission portion; 303- transmission portion; 304- installation frame; 1011 - first roller brush; 1012 - second roller brush; 21- first transmission mechanism; 22- second transmission mechanism; 23- transmission shaft; 31- first drive part; 32- second drive part; 211- first set of gears; 212- first housing; 221- second set of gears; 222- second housing; 2111- first gear; 2112- second gear; 2113- third gear; 2114, fourth gear; 2115, fifth gear; 2116, sixth gear; 2211- seventh gear; 2212, eighth gear; 2213, ninth gear. DETAILED DESCRIPTION In the descriptions of this disclosure, it should be understood that the orientation or position relationships indicated by the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "top," "bottom," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise" are the orientation or position relationships shown based on the drawings, solely for the purposes of ease of description in this disclosure and simplification of its descriptions, but do not indicate or imply that the specified device or element must have a specific orientation, and be structured and operated in a specific direction and, therefore, should not be understood as limitations of this disclosure. Furthermore, the terms "first" and "second" are for descriptive purposes only and should not be interpreted as indicating or implying relative importance or implicitly indicating the number of technical features listed. Thus, the features defined by "first" and "second" may explicitly or implicitly include one or more of these features. In the descriptions in this disclosure, unless otherwise clearly and specifically defined, "a plurality of" means two or more. In this disclosure, unless otherwise clearly specified and defined, terms such as "installation," "connected," "connection," and "fixed" should be understood in a broad sense. For example, "connection" may be a fixed connection, a detachable connection, or an integrated connection; it may be by mechanical or electrical connection; it may be a direct connection, an indirect connection through an intermediate element, or internal communication between two elements. Persons skilled in the art may understand the specific meanings of the above terms in this disclosure under specific conditions. The following will describe embodiments of this disclosure in conjunction with the accompanying drawings. It should be understood that the embodiments described herein are used only to illustrate and explain this disclosure, and are not used to limit this disclosure. Existing robotic vacuum cleaners generally only have one rolling brush, resulting in poor stability during cleaning operations. Currently, cleaning devices such as robot vacuums and integrated robot vacuums and mops are typically positioned close to the floor to clean dust, particles, hair, and similar debris. However, when the roller brush rotates to clean, hair and other fibrous objects wrap around it and easily become entangled, preventing them from being vacuumed up along with the dust. This not only affects the suction power but also increases the natural wear and tear on the roller brush's drive mechanism, reducing the cleaning device's lifespan. Manually removing the hair from the roller brush is necessary, negatively impacting the user experience.Furthermore, for a cantilever-type roller brush, due to the fact that a blade on its end portion normally needs to extend in the axial direction, hairs often become entangled at the tip of the roller brush, and even become entangled in a drive shaft of the roller brush, increasing the natural wear of the drive portion of the roller brush, reducing the service life of the cleaning device, and affecting the user experience. Referring to Figures 1 to 3, according to one embodiment of this disclosure, a set of roller brushes is provided. The roller brush set includes at least two roller brushes. Each roller brush includes a connecting end 11 and a free end. The connecting end 11 is driven by a drive device. The free ends of the at least two roller brushes are arranged opposite each other, and there is a gap between the oppositely arranged free ends. Arranging the at least two roller brushes effectively improves stability during cleaning compared to a single roller brush. The gap between the oppositely arranged free ends prevents the roller brushes from interfering with each other or trapping debris. The roller brush includes a shaft and a cleaning portion arranged on the shaft. The cleaning portion includes a blade 2 and / or the first bundles 3 of bristles, or the cleaning portion is a single unit formed by connecting the blade 2 and the first bundles 3 of bristles, so as to ensure a better cleaning effect. The cleaning part may include only blade 2, or only the first bundles 3 of bristles, or both blade 2 and the first bundles 3 of bristles. Blade 2 and the first bundles 3 of bristles may have a split structure (i.e., blade 2 and the first bundles 3 of bristles are independent components that are separate from each other), or they may be a combined component formed by connecting blade 2 and the first bundles 3 of bristles. Blade 2 can be detachably mounted on the shaft, allowing it to be removed and reattached, which is convenient for replacing blade 2. If blade 2 becomes damaged, it can be replaced directly without replacing the entire roller brush, thus saving operating costs. A plurality of blades 2 can be distributed circumferentially around the tree stem, and the first bundles 3 of bristles are arranged between adjacent blades 2 around the circumference of the tree stem, so as to improve the sweeping effect. A plurality of first bundles 3 of bristles are arranged between adjacent blades 2, and the plurality of first bundles 3 of bristles are arranged spirally in the axial direction of the tree stem. The first bundle of bristles includes a fixed end and a movable end. The fixed end is connected to the arbor. The movable end extends away from the arbor and is angled towards the free end of the rolling brush, so that debris is guided as it is driven to move. The debris can then be moved towards the movable end in the direction of extension of the first bundle of bristles, and subsequently towards the free end of the arbor to be suctioned into the dust box, further enhancing the sweeping effect. The first bundle 3 of bristles extends in a straight line, when not deformed by an external force, and the movable end of the first bundle 3 of bristles extends in a direction away from the tree stem and tilts towards the free end of the tree stem as a whole. Specifically, in this embodiment, there is an included angle of approximately 45º between the fixed end of the first bundle 3 of bristles and the outer wall of the tree stem. In one example, the outer wall of the roller brush may experience elastic deformation. The outer wall of the roller brush is made of an elastic material, so it can undergo elastic deformation. In one example, the outer wall of the roller brush is rigid. It should be noted that "rigid" means that, under normal working conditions, the outer wall of the roller brush will not deform or experience slight deformation, but it does not mean that the outer wall of the roller brush cannot deform at all. Specifically, "the outer wall of the roller brush is rigid" means that the rigidity of the outer wall is sufficiently high so that, under normal working conditions, the outer wall of the roller brush will not deform. Specifically, in this embodiment, a portion of the tree stem end is made of a soft rubber material, and has a high surface friction force, which facilitates the expulsion of hairs. It can be understood that the stem portion of the tree, except for the end portion, may be made of a hard rubber material. The arbor and the blades 2 are formed as a single unit, giving the roller brush improved structural strength. In related technology, in an anti-tangle roller brush, the arbor and the blades 2 are typically mounted together, and a gap is usually present between them during assembly. If hair enters the gap, it cannot be removed from the roller brush. In this embodiment, the arbor and the blades 2 are formed as a single unit, preventing the formation of a gap between the arbor and the blades 2, thus preventing hair from entering the gap and enhancing the hair-tangle prevention effect. The tree stem and blades 2 can be formed together by two-material injection molding, in-mold injection molding, liquid injection molding, and hydroforming. Specifically, in this embodiment, the tree stem and blades 2 are formed together by two-color injection molding or in-mold injection molding. The tree stem is made of PC, ABS or PA, or the tree stem is made of a combination of PC and ABS, or a combination of PC and GF, or a combination of ABS and GF, or a combination of PC, ABS and GF, or a combination of PA and GF. The 2 blades are made of TPU or TPE or silica gel or rubber. As a first implementation of this embodiment, the roller brush includes the arbor stem and an end cap 12. The end cap 12 is disposed on the arbor stem to form the free end of the roller brush, and the end surface of the end cap 12 is obliquely disposed. By positioning the end cap 12, and ensuring that its end surface is angled, the end surface is formed into a sloped surface. When hairs become entangled at the end of the tree shank, they slide along this angled surface with gradual tension, eventually exiting the tree shank. This solves the problem of hairs easily becoming entangled at the end of the tree shank. Furthermore, once the hairs leave the tree shank, they are easily ejected along with the rotation of the roller brush, provided that at least one end surface of the tree shank is angled relative to a central axis of the tree shank. It is beneficial for the hairs to enter the dust box from a main brush compartment, improving the overall user experience. The end surface of the end cap 12 is arranged obliquely with respect to the central axis of the tree stem. The tree stem may have a cylindrical structure, and the tree stem extends in a straight line. The end cap 12 covers the free end of the tree stem. The 12 end cap covers the free end of the tree stem. Specifically, the end surface of the 12-end cap is oriented obliquely with respect to the central axis of the shaft. That is, the end surface of the 12-end cap is neither parallel nor perpendicular to the central axis of the shaft. In other words, there is an included angle of no more than 90 degrees between the central axis and the end surface. In one embodiment, the end surface arranged obliquely with respect to the central axis of the tree stem is an arc surface, so that the end surface is smooth and allowing the hairs to slide smoothly over the end surface. The arc surface is a convex arc surface, that is, an arc surface that protrudes outwards, rather than a concave arc surface. In one embodiment, the end surface arranged obliquely with respect to the central axis of the tree stem is configured as a plane, and smooth sliding of the hairs over the end surface can also be ensured. The end surface is a plane. In a radial or axial direction of the tree stem, the end surface is an inclined plane. In one embodiment, the end surfaces of the oppositely arranged end caps 12 of the rolling brushes have the same tilt direction, and the two oppositely arranged rolling brushes rotate at the same speed and in the same direction. The same tilt direction of the oppositely arranged end caps 12 of the rolling brush means that the end surfaces of the two end caps 12 are tilted in the same direction, so that the two end surfaces are approximately parallel. In one embodiment, there is a difference in rotation speed between the two oppositely arranged rolling brushes, which further improves the ability to remove hair tangles. As shown in Figures 1, 4, and 5, in this embodiment, the rolling brush component includes two rolling brushes, namely the first rolling brush 5 and the second rolling brush 7. The first rolling brush 5 and the second rolling brush 7 are arranged opposite each other in one embodiment. The first rolling brush 5 and the second rolling brush 7 are arranged axially opposite each other. The end cap 12 of the first rolling brush 5 is located at the free end of the shaft of the first rolling brush 5, i.e., the right end in Figure 1. The end cap 12 of the second rolling brush 7 is located at the free end of the shaft of the second rolling brush 7, i.e., the left end. The end caps 12 of the first rolling brush 5 and the second rolling brush 7 are both arranged obliquely with respect to the central axis of the tree stem, which may enable both the first rolling brush 5 and the second rolling brush 7 to have a good ability to remove hair tangles and thus improve the user experience. The first rolling brush (5) and the second rolling brush (7) are configured to have a difference in rotational speed, so that hairs tangled on the first rolling brush (5) and the second rolling brush (7) can be more easily dislodged and collected in the dustbin. Specifically, by adjusting the rotational speed difference, it is possible to have the first rolling brush (5) dislodge hairs tangled on the second rolling brush (7), or vice versa, allowing the hairs to be dislodged and collected in the dustbin. As a second implementation of this embodiment, the roller brush assembly further includes a first locking part 8, and at least part of the first locking part is located between the roller brushes arranged in opposite directions. By providing the first locking part 8 and arranging at least part of the first locking part 8 between the oppositely arranged brushes, when the hairs tangled on the brush rotate together with the rolling brushes, the hairs can be locked by hooks and change their direction of movement to move towards the dust collection port 91, so that the hairs are sucked into the dust box by a blower, thus achieving the effect of removing the hairs tangled on the rolling brushes. As shown in Figures 6 to 8, in this second implementation, the rolling brush assembly includes two rolling brushes, namely the first rolling brush 5 and the second rolling brush 7. The first rolling brush 5 and the second rolling brush 7 are arranged axially opposite each other. Specifically, the first brush 5 and the second brush 7 are arranged coaxially. At least part of the first locking portion 8 is located between the facing end faces of the first rolling brush 5 and the second rolling brush 7. As shown in Figures 6 and 7, the roller brush assembly includes a roller brush compartment. The first locking part 8 is arranged on an inner wall of the roller brush compartment, such that the first locking part 8 can be securely engaged, and part of the first locking part 8 can extend to a position between the opposite end surfaces of the first roller brush 5 and the second roller brush 7. The roller brush assembly includes a roller brush compartment. The roller brush compartment is provided with a dust collection port 91 used to communicate with the dust box. The first locking part 8 is arranged on an inner wall of the roller brush compartment on the side opposite the dust collection port 91, and is positioned opposite the dust collection port 91, such that hairs blocked by the first locking part 8 can smoothly enter the dust box. The first locking part 8 and the dust collection port 91 are arranged substantially opposite each other along a radial direction along the rolling brush. Dust collection port 91 is an opening in the main brush compartment that connects to the dust box; specifically, it's the opening closest to the dust box within the main brush compartment. The flow area of ​​dust collection port 91 is smaller than the flow area of ​​the dust inlet. Dust and debris are drawn into the main brush compartment through the dust inlet and then enter the dust box via dust collection port 91. As shown in Figure 9, the first locking part 8 includes a connecting segment 81 and a locking segment 82. The connecting segment 81 is attached to the inner wall of the roller brush compartment, and the locking segment 82 is attached to the connecting segment 81. The extension direction of the locking segment 82 is different from the extension direction of the connecting segment 81. By providing the connection segment 81, the first locking part 8 is enabled to be securely attached to the main brush cover 9. By configuring the extension direction of the locking segment 82 to be different from the extension direction of the connection segment 81, the connection segment 81 is enabled to reach a position between the oppositely arranged rolling brushes, thus serving to lock hairs in place. The locking segment 82 extends to a position between the opposing rolling brushes in a direction perpendicular to the axial direction of the rolling brushes. As shown in Figure 9, the connecting segment 81 has a curved surface for connection with the inner wall of the main brush cover 9. The curved surface is in close contact with the curved inner wall of the main brush cover 9 along the tangential direction of the rolling brush. The curvature of the curved surface of the connecting segment 81 matches the curvature of the curved inner wall of the main brush cover 9, thus achieving a close contact and connection, which can be specifically bonded. As shown in Figure 9, the locking segment 82 is connected to the connecting segment 81 to substantially form a hook-type structure, which may also be called an L-shaped structure. The locking segment 82 extends in a direction perpendicular to the axial direction of the rolling brush and extends to a position between the opposing rolling brushes. One end of the locking segment 82 away from the connecting segment 81 extends to the central axis of the rolling brushes. The roller brush assembly includes a holder. The holder includes a sleeve stem 41. The roller brush is sleeved onto the sleeve stem 41, so that the roller brushes can rotate stably on the sleeve stem 41. The sleeve stem 41 includes an inner stem and an outer stem. The outer stem is sleeved on the outer peripheral side of the inner stem. The inner stem is fitted with a bearing 42 and is connected to the inner wall of the outer stem via the bearing 42. By providing the bearing 42 between the inner and outer stems, it is possible to ensure that the relative rotation between the inner and outer stems is more stable, and wear between the outer and inner stems can also be reduced. The outer stem and frame body have a one-piece structure, and a section of the inner stem rotates into the outer stem. Specifically, one end of the inner stem is connected to a drive component, such that the drive component can cause the inner stem to rotate. A section of the inner stem, away from the drive component, extends beyond the outer stem. A rubber core is permanently sleeved over the section of the inner stem that extends beyond the outer stem. The roller brush shaft is sleeved over the rubber core and the outer stem. The rubber core and the shaft are permanently connected in the tangential direction, such that the rubber core can cause the shaft to rotate. That is, the drive component causes the inner stem to rotate, the inner stem causes the rubber core to rotate, and the rubber core causes the shaft to rotate. The inner ring of bearing 42 is sleeved over the outer peripheral wall of the inner stem, and the outer ring of bearing 42 is attached to the inner peripheral wall of the outer stem. As shown in Figures 10 to 13, there are at least two bearings 42. The at least two bearings 42 are arranged in the axial direction of the inner stem, which can further ensure that the inner stem rotates stably within the outer stem. Specifically, the number of bearings 42 is two. One bearing 42 is arranged on the inner wall at one end of the outer stem, and the other bearing 42 is arranged on the inner wall at the other end of the outer stem. 42 bearings are either oil-filled 42 bearings or ball 42 bearings, or they include an oil-filled 42 bearing and a ball 42 bearing to ensure good rotational stability. Specifically, in this embodiment, the two 42 bearings are both oil-filled 42 bearings. The oil-filled 42 bearing offers good wear resistance. It is made of a powder metallurgy material and its size can be customized to various shapes to suit different design spaces. The two 42 bearings are the same size, which saves space, simplifies the assembly, and allows for more stable and reliable transmission. There are two brackets, and the 41 sleeve pins of the two brackets are either the same or different. If the 41 sleeve pins of the two brackets are different, error prevention can be achieved, thus avoiding assembly errors and ensuring product performance. The roller brushes are equipped with sleeve holes, which are fitted onto the sleeve shaft 41. Different roller brushes may have the same or different sleeve holes. If the two sleeve holes are different, error prevention can be achieved, thus avoiding assembly errors and ensuring product performance. As shown in Figures 13 to 16, in this embodiment, the roller brush assembly includes two supports and two roller brushes, namely the first support 4 and the second support 6, as well as a first roller brush 5 and a second roller brush 7. The first roller brush 5 is mounted on the first support 4, and the second roller brush 7 is mounted on the second support 6. Specifically, the first rolling brush 5 is provided with a first sleeve hole 51, and is fitted over the sleeve stem 41 of the first support 4 through the first sleeve hole 51. The cross-section of the first sleeve hole 51 is adapted to the cross-section of the sleeve stem 41 of the first support 4. The second rolling brush 7 is provided with a second sleeve hole 71, and is fitted over the sleeve stem 41 of the second support 6 through the second sleeve hole 71. The cross-section of the second sleeve hole 71 is adapted to the cross-section of the sleeve stem 41 of the second support 6. The cross-section of the first sleeve hole 51 is different from the cross-section of the second sleeve hole 71, and the cross-section of the sleeve stem 41 of the first support 4 is different from the cross-section of the sleeve stem 41 of the second support 6. Specifically, as shown in Figure 13, the cross-section of the first sleeve hole 51 is plum-shaped, meaning that the first sleeve hole 51 is a plum-shaped hole. As shown in Figure 14, the cross-section of the sleeve stem 41 of the first support 4 is also plum-shaped, its size and shape matching those of the first sleeve hole 51. After inserting the sleeve stem 41 of the first support 4 into the first sleeve hole 51, the sleeve stem 41 of the first support 4 abuts the plum-shaped structure of the first sleeve hole 51 in the tangential direction, thereby driving the first rolling brush 5 to rotate. Specifically, as shown in Figure 15, the cross-section of the second sleeve hole 71 is rectangular, meaning that the second sleeve hole 71 is a rectangular hole. As shown in Figure 16, the cross-section of the sleeve stem 41 of the second support 6 is also rectangular, and its size and shape match those of the second sleeve hole 71. After inserting the sleeve stem 41 of the second support 6 into the second sleeve hole 71, the sleeve stem 41 of the second support 6 abuts against the rectangular structure of the second sleeve hole 71 in the tangential direction, thereby driving the second rolling brush 7 to rotate.The cross-section of the first sleeve hole 51 and the cross-section of the sleeve stem 41 of the first support 4 are plum-shaped, and the cross-section of the second sleeve hole 71 and the cross-section of the sleeve stem 41 of the second support are rectangular. The cross-sections are of different shapes and sizes, such that the sleeve stem 41 of the first support 4 cannot be inserted into the second sleeve hole 71, and the sleeve stem 41 of the second support 6 cannot be inserted into the first sleeve hole 51, thus creating a fail-safe effect. As shown in Figures 17 to 19, as a third implementation of this embodiment, the free ends of at least two rolling brushes are arranged obliquely towards the dust collection port 91, which can facilitate the dust being directed towards the dust collection port 91 by the rolling brushes and thus be more easily sucked into the dust box, thereby improving the cleaning effect. The opposite ends of the two opposing rolling brushes, i.e., the free ends of the two rolling brushes, are arranged obliquely towards the dust collection port 91. Roller brushes have a substantially cylindrical structure, and roller brushes extend in a straight line along their own central axis. The internal space of the main brush cover 9 communicates with the dust box via dust collection port 91. The airflow area of ​​dust collection port 91 is relatively small. Therefore, the air velocity is high. By configuring the free end of the roller brush to extend towards dust collection port 91, the dust can be directed towards the port by the roller brush's rotation, facilitating its collection into the dust box. The dust collection port 91 is located midway along the transverse direction of the main brush cover 9. The roller brush connection end 11 is located at one end of the main brush cover 9, and the free end of the roller brush extends into the dust collection port 91, which is located midway along the main brush cover 9. Specifically, the first rolling brush 5 is located on one side of the dust collection port 91. The second rolling brush 7 is located on the other side of the dust collection port 91. The free end of the first rolling brush 5 is angled obliquely towards the dust collection port 91, and the free end of the second rolling brush 7 is angled obliquely towards the dust collection port 91, such that the first rolling brush 5 and the second rolling brush 7 are arranged at an angle to each other. This allows the dust to be driven synchronously to move towards the dust collection port 91 from two directions, thereby further improving the cleaning effect. The first rolling brush 5 and the second rolling brush 7 are arranged substantially with left-right symmetry. The first side and the second side are, respectively, the left and right sides of dust collection port 91, which can be understood as the first side being the left side of dust collection port 91 and the second side being the right side of dust collection port 91. The free end of the first rolling brush 5 and the second rolling brush 7 are opposite ends in the left-right direction. One end of the bracket is connected to the drive device, and the other end is angled obliquely towards the dust collection port 91. The rolling brush can rotate on the support with its own central axis as the center of rotation. Specifically, the first rolling brush 5 is rotationally arranged on the first support 4, and the second rolling brush 7 is rotationally arranged on the second support 6. One end of each of the first support 4 and the second support 6 is connected to the drive device, and the other end of each of the supports 4, 6 is obliquely inclined towards the dust collection port 91, such that the first rolling brush 5 can rotate on the first support 4 with its own central axis as the center of rotation, and the second rolling brush 7 can rotate on the second support 6 with its own central axis as the center of rotation, thereby ensuring that the first rolling brush 5 and the second rolling brush 7 have good rotational stability. The first rolling brush 5 and the second rolling brush 7 are two rolling brushes that rotate on the first support 4 and the second support 6, respectively. The first rolling brush 5 is rotationally sleeved onto the sleeve rod 41 of the first support 4. The first rolling brush 5, the sleeve rod 41 of the first support 4, and the drive portion of the drive device connected directly to the sleeve rod 41 are arranged coaxially along an axis extending toward the dust collection port 91. That is, the sleeve rod 41 of the first support 4 is arranged obliquely with respect to a side wall of the rolling brush cover. The second rolling brush 7 is rotationally sleeved onto the sleeve rod 41 of the second support 6. The second rolling brush 7, the sleeve rod 41 of the second support 6, and the drive portion of the drive device connected directly to the sleeve rod 41 are arranged coaxially along a shaft extending towards the dust collection port 91. That is, the sleeve rod 41 of the second support 6 is arranged obliquely with respect to a side wall of the rolling brush cover. The main brush cover 9 is equipped with a dust inlet, and the opening angle of the dust inlet is adapted to the angle formed between the two rolling brushes. The two rolling brushes, with their free ends positioned opposite each other, form an obtuse angle, meaning that the angle formed between the first rolling brush (5) and the second rolling brush (7) is an obtuse angle. The dust inlet is correspondingly formed in an obtuse-angle structure. According to realizations of this disclosure, an automatic cleaning apparatus is provided, which includes a set of rolling brushes as described above. According to the realizations in this disclosure, a cleaning system is provided that includes either a set of rolling brushes as described above or an automatic cleaning device as described above. The cleaning system also includes a base station. The base station is configured to provide maintenance to the automatic cleaning device. The common rolling brush 100 in related technology is usually connected to the drive device in the compartment body 300 via a rotating shaft. When the rolling brush 100 encounters hairs and other thread-like objects characterized by their considerable length and soft material, the long or soft hairs can spontaneously form many different configurations in their natural state and tend to tangle themselves after being disturbed by the rolling brush 100, making it easier for them to become entangled on the rolling brush 100 and the rotating shaft of the rolling brush 100.Therefore, after prolonged operation, a large amount of hair tangled on the rolling brush 100 can deform the brush and further increase the natural wear on the brush drive, thus reducing the cleaning appliance's lifespan. Additionally, hair tangled on the rotating shaft is not easily drawn into the air duct, which can affect cleaning efficiency. Therefore, manual cleaning of hair from the rolling brush 100 and the rotating shaft is required at regular intervals, which is time-consuming and laborious. Hair entering the compartment body 300 can contaminate the environment inside the compartment and even damage internal components, further impacting the appliance's lifespan. As shown in Figures 20 to 31, a rolling brush 100 is provided for use in a cleaning apparatus. The rolling brush 100 includes a main rolling brush body 201 and a second locking part 202. The main rolling brush body 201 includes a shaft 2011 and a blade 2012 arranged on the outer peripheral side of the shaft 2011. The second locking part 202 is arranged on an end portion of the main rolling brush body 201, and part of the blade 2012 is obliquely oriented toward the axial direction of the shaft 2011 and inserted into the second locking part 202. The rolling brush 100 is arranged at one end of the rolling brush 100 near the compartment body 300 by means of a second annular locking part 202. A portion of the blade 2012 is obliquely inclined to the axis of the shaft 2011 and is inserted into the second locking part 202. A plurality of blades 2012 are arranged on the shaft 2011. Hairs are entangled on the plurality of blades 2012 to form a substantially circular hair loop. The outer diameter of the second locking part 202 is larger than the outer diameter of the plurality of blades 2012 where the blades are connected to the second locking part 202. When the hairs on the blades 2012 move axially towards the end of the main body 201 of the rolling brush, the hairs are locked by the second locking part 202 and cannot become entangled on the shaft connected to the rolling brush 100.By restricting the hairs on the 2012 blade with its outer diameter, it is difficult for the hairs to clump together, allowing them to be more effectively drawn into the air duct. This improves the cleaning effect, prevents hairs from becoming entangled on the handle after being removed from the 2012 blade, reduces the possibility of deformation of the 100 rolling brush due to hair entanglement, and reduces natural wear on the drive mechanism. Furthermore, the second 202 locking part is located at one end of the 100 rolling brush near the compartment body, preventing hairs from entering the 300 compartment body, thus extending the appliance's lifespan and improving the user experience. In one implementation, as shown in Figures 20 to 23, the blade 2012 includes a main blade body 122 and an extension portion 121. The extension portion 121 is disposed at the end portion of the main blade body 122. A portion of the extension portion 121 is inserted into the second locking portion 202. The extension portion 121 is located on the inner side of the outer edge of the main blade body 121 in the radial direction of the main rolling brush body 201, and the extension portion 121 is located on the inner side of the outer edge of the second locking portion 202. It can be seen that a root portion of the blade 2012 narrows and is inserted into the second locking portion 202. The root portion of the blade 2012 is the extension portion 121. The extension portion 121 and the main blade body 122 may have a one-piece structure. The outer diameter of the second locking portion 202 is larger than the outer diameter of the extension portion 121. During axial movement, the hairs on the blade 2012 move along the main rolling brush body 201, reaching the position of the extension portion 121 and being slightly tensioned until they make contact with the second locking portion 202. The second locking portion 202 prevents the hairs from moving further toward the end portion and confines them to the position of the extension portion 121.The diameter of the tangled hair loop at the extension portion 121 is slightly smaller than the diameter of the tangled hair loop on the main blade body 122, and the tangled hair loop at the extension portion 121 still has a slightly larger diameter, so that the hairs cannot become tangled on themselves, which greatly reduces the situation of tightly tangled hairs on the rolling brush 100, and reduces the situation of deformation of the rolling brush 100 caused by tightly tangled hairs on the rolling brush 100, thereby reducing the frequency of manual cleaning of hairs on the rolling brush 100, and improving user satisfaction. The radial height of at least part of the extension portion 121 is less than the radial height of the second locking portion 202. In one implementation, as shown in Figures 20 to 23, there is a plurality of blades 2012. The plurality of blades 2012 are distributed circumferentially with respect to the shaft 2011. The radial distance between the extension portion 121 and the shaft 2011 is less than the radial distance between the outer edge of the main blade body 122 and the shaft 2011. It will be noted that the plurality of blades 2012 are provided on the outer peripheral side of the shaft 2011 and are arranged radially to the shaft 2011. The drive device drives the shaft 2011 and the blades 2012 to rotate via the rotating shaft, thereby sweeping the surface to be cleaned. Specifically, the 2012 blades can be provided along the axial direction of the 2011 shaft, and can also extend in a spiral shape in the axial direction of the 2011 shaft. In one implementation, as shown in Figures 20 to 23, at least part of the outer edge of the extension portion 121 serves as a guide segment, and the guide segment is arranged between the second locking part 202 and the main blade body 122. It will be noted that the portion of the extension 121 inserted into the second locking portion 202 is smoothly connected to the main blade body 122 by the guide segment. In other words, the portion of the blade 2012 between the main blade body 122 and the extension 121 inserted into the second locking portion 202 has no obvious gap or break, and the transition between the two is smooth, thus ensuring that the hairs can move steadily along the blade 2012 until they are stopped by the second locking portion 202. The guiding segment includes an oblique segment and / or an arc segment. In one implementation, this embodiment takes the guide segment as an example of an oblique segment. At least part of the oblique segment is located between the second locking part 202 and the main blade body 122. The oblique segment extends from one end of the main blade body 122 into the second locking part 202 and is inserted into the second locking part 202. The oblique segment is inclined obliquely toward the arbor 2011, such that when the hairs move from the main blade body 122 and reach the position of the oblique segment, the hairs can come into contact with the second locking part 202, and the second locking part 202 prevents the hairs at the position of the oblique segment from moving axially along the arbor 2011. In one implementation, this embodiment takes the guide segment as an example of an arc segment. At least part of the arc segment is located between the second locking part 202 and the main blade body 122. The arc segment extends from one end of the main blade body 122 into the second locking part 202 and is inserted into the second locking part 202. The arc segment is angled obliquely toward the second locking part 202 and is inserted into the second locking part 202. The arc segment is angled obliquely toward the arbor 2011, such that when the hairs move from the main blade body 122 and reach the position of the arc segment, the hairs can come into contact with the second locking part 202, and the second locking part 202 prevents the hairs at the position of the arc segment from moving axially along the arbor 2011. In one implementation, this embodiment takes as an example the guide segment that includes an arc segment and an oblique segment. At least part of the oblique segment or at least part of the arc segment is located between the second locking part 202 and the main blade body 122. At least one of the arc segment and the oblique segment extends from one end of the main blade body 122 into the second locking part 202 and is inserted into the second locking part 202.At least one of the arc segment and the oblique segment is inclined obliquely towards the arbor 2011, such that when the hairs move from the main blade body 122 and reach the position of at least one of the arc segment and the oblique segment, the hairs can come into contact with the second locking part 202, and the second locking part 202 prevents the hairs in the position of at least one of the arc segment and the oblique segment from moving axially along the arbor 2011. The arc segment can be a concave arch shape, that is, an arch shape that is concave inwards. The arc segment can also be a convex arc shape, meaning an arc shape that is convex outwards. When the arc segment is a convex arc shape, it can be positioned entirely between the second locking part 202 and the main blade body 122. A transition segment can also be established between the arc segment and the second locking part 202. This transition segment can be a straight segment, an oblique segment, an arc segment, etc., to prevent hair from becoming entangled in the gaps between the convex arc shape and the second locking part 202. In one implementation, as shown in Figures 20 to 23, the ratio of the minimum radial distance between the guide segment and the shaft stem 2011 to the radial distance between the outer edge of the main blade body 122 and the shaft stem 2011 is in the range of 0.5 to 0.9. It will be observed that the root portion of the blade 2012 tapers to form the extension portion 121 and is inserted into the second locking portion 202. During the axial movement of the bristles on the blade 2012 along the main body 201 of the rolling brush, as the bristles move to the position of the extension portion 121, the bristle loop is slightly tightened until it makes contact with the second locking portion 202. To prevent the diameter of the bristle loop on one side of the second locking portion 202 from becoming too small, which could cause the bristles to become entangled on the blade 2012, certain requirements apply to the distance between the outer edge of the extension portion 121 and the arbor 2011.Specifically, the ratio of a first distance to a second distance may be in the range of 0.5 to 0.9, where the first distance is a distance between the shaft 2011 and the position of the end of the second locking part 202 near the main blade body 122 in contact with the outer edge of the extension portion 121, and the second distance is the distance between the outer edge of the main blade body 122 and the shaft 2011.In this way, on the one hand, the loop of hair formed by the hairs that reach the position of the extension portion 121 can be slightly tensioned to stop while it comes into contact with the second locking part 202; on the other hand, the loop of hair can be prevented from becoming entangled in itself in multiple layers due to its small diameter, which can affect the suction of hair in the air duct, and the loop of hair with a slightly reduced diameter can still be gently suctioned into the air duct, thus ensuring cleaning efficiency. In one implementation, as shown in Figures 22 and 23, the shaft 2011 is provided with an end plate 2013. The plurality of blades 2012 are embedded in the end plate 2013. The blades 2012 extend beyond the side of the end plate 2013 far from the main blade body 122. The second locking part 202 is located on the side of the end plate 2013 far from the main blade body 122. The shaft 2011 is fitted with an annular end plate 2013. The annular end plate 2013 is sleeved over the shaft 2011. The end plate 2013 is connected to a plurality of main blade bodies 122. The root portion of the blade 2012 tapers to form an extension portion 121. The extension portion 121 projects from an end surface of the end plate 2013 and is inserted into the second locking portion 202. An end portion of the extension portion 121 may be located in or pass through the second locking portion 202. In one implementation, as shown in Figures 22 and 23, the shaft stem 2011 includes a main shaft stem body 111 and an annular flange 112. The annular flange 112 is provided on an end portion of the main shaft stem body 111, and the second locking portion 202 is sleeved over the annular flange 112. The main body 111 of the tree stem may have a cylindrical structure and is arranged along a straight line. The annular flange 112 is provided on one end portion of the main shaft body 111, and the second locking portion 202 is sleeved over the annular flange 112. The annular flange 112 and the main shaft body 111 may have a one-piece or split structure, and the end plate 2013 may be located on one side of the annular flange 112. The connection between the second locking part 202 and the shaft 2011 can be achieved by a connection method such as gluing, sheathing, screwing, snap-fitting, mortise and tenon, magnetic suction, etc., provided that the second locking part 202 can rotate with the shaft 2011. In one implementation, as shown in Figure 24, the second locking part 202 includes second bundles 2022 of bristles distributed circumferentially with respect to the stem 2011 of the tree, and the extension portion 121 is inserted into the gaps of the second bundles 2022 of bristles. The second locking part 202, composed of several second bundles 2022 of bristles, stops the hairs in the blade 2012. Small gaps are formed between the second bundles 2022 of bristles, and the extension portion 121 can be inserted into the gaps between the second bundles 2022 of bristles. One end of the second bundle 2022 of bristles is ultimately connected to the tree stem 2011, and the other end of the second bundle 2022 of bristles is in contact with the inner wall of the compartment body, thereby stopping the hairs from moving into the compartment body. Furthermore, as shown in Figure 24, the second locking part 202 may also include an annular part 2021, which fits over the shaft 2011. The second bristle bundle 2022 includes a fixed end connected to the annular part 2021 and a free end extending away from the shaft 2011. Without deformation from an external force, the second bundle 2022 of bristles extends in a straight line. The fixed end of the second bundle 2022 of bristles is connected to the annular part 2021, and the annular part 2021 is connected to the arbor 2011. The free end of the second bundle 2022 of bristles extends along the radial direction of the arbor 2011, away from the arbor 2011, making it difficult for the hairs to become entangled on the second bundle 2022 of bristles. The annular part 2021 can be connected with the annular flange 112. The free end of the second bundle 2022 of bristles is in contact with the inner wall of the compartment body 300, filling the gap between the shaft 2011 and the compartment body 300, so that the hairs cannot enter the compartment body 300. The second bundle 2022 of bristles is elastic, and deformation of the second bundle 2022 of bristles can occur during contact with the inner wall of the compartment body 300, such that the free end of the second bundle 2022 of bristles is always in close contact with the inner wall of the compartment body 300. The second 2022 bundle of bristles may be made of at least one of a rubber material, a plastic fiber material, an inorganic fiber material, a plant fiber material, and an animal fiber material. The surface of the second bundle 2022 of bristles is smooth and free of burrs to reduce friction with the hairs, so that the hairs slide over the second locking part 202, thereby preventing the hairs from becoming entangled on the second bundle 2022 of bristles. In one implementation, as shown in Figure 25, the second locking part 202 includes an annular part 2021. The annular part 2021 is sleeved over the shaft stem 2011, and the annular part 2021 is provided with a groove 2023 into which the extension portion 121 is to be inserted. The second locking part 202 may be the annular part 2021, and the extension portion 121 is inserted into the groove 2023 provided in the annular part 2021. The groove 2023 may be an open groove having an opening at one end or a through groove having openings at both ends. The groove 2023 and the extension portion 121 have a tight or close fit, thereby preventing hair from entering the compartment body 300 through the groove 2023. The inner wall of the annular part 2021 is ultimately connected to the tree stem 2011, and the outer wall of the annular part 2021 extends away from the tree stem 2011, thereby preventing the hairs from moving into the compartment body. The annular part 2021 can be connected to the annular flange 112, and the outer wall of the annular part 2021 comes into contact with the inner wall of the compartment body, filling the gap between the shaft 2011 and the compartment body 300, so that hairs cannot enter the compartment body 300. The annular part 2021 is elastic, or the outer wall of the annular part 2021 is elastic. Deformation of the annular part 2021 may occur during contact with the inner wall of the compartment body 300, such that the outer wall of the annular part 2021 is always in close contact with the inner wall of the compartment body 300. The second part of the 202 lock is made of felt. Felt is often made from animal hair or fibers, which offers better elasticity, abrasion resistance, and sealing properties, and can also provide vibration damping. In one implementation, the second part 202 of the lock and the stem 2011 of the tree can be formed in a solid manner, or have a split structure. In one implementation, a detachable structure or a fixed connection structure can be configured between the second locking part 202 and the stem 2011 of the tree. In one implementation, as shown in Figures 26 to 30, the cleaning apparatus includes a compartment body 300 for housing the rolling brush 100. The second locking part 202 is located between the shaft 2011 and the compartment body 300 and fills a gap between the shaft 2011 and the compartment body 300, thereby preventing hairs from moving into the gap. In one implementation, as shown in Figures 27 to 30, there is no contact between the blade 12 and the compartment body 300, and a press fit occurs between the locking part 2 and the compartment body 300. It will be appreciated that the extension portion 121 has a low clearance fit with the compartment body 300, and the second locking part 202 has a tight fit with the inner wall of the compartment body 300, such that the second locking part 202 is always in close contact with the inner wall of the compartment body 300 when the second locking part 202 rotates together with the main rolling brush body 201, thereby ensuring the sealing effect. In one implementation, as shown in Figure 30, at least part of the second locking part 202 is elastic, and during the relative movement of the second locking part 202 and the compartment body 300, the second locking part 202 is always in close contact with the compartment body 300. As shown in Figures 26 to 31, a set 200 of rolling brushes is provided, which includes any of the rolling brushes 100 described above. The rolling brush 100 is configured to connect to a drive device to cause the rolling brush 100 to rotate. The 200 series of rolling brushes includes a 300 compartment body. The 100 rolling brush is provided within the 300 compartment body. The drive unit may also be provided within the 300 compartment body. The drive unit is connected to the 100 rolling brush via a rotating shaft, which drives the 100 rolling brush to rotate and interact with the surface to be cleaned. The 300 compartment body provides good protection for the drive device and transmission device, reduces contamination in the 300 compartment body, and is favorable for prolonging its service life and reliability. In one implementation, as shown in Figures 27 to 31, the compartment body 300 includes a main brush compartment 31 and a main brush cover 32. The main brush compartment 31 and the main brush cover 32 enclose a cavity that houses the rolling brush 100, and the main brush compartment 31 and the main brush cover 32 enclose a coupling cavity 33 that houses the second locking part 202. Specifically, the 300 compartment body may include a main brush compartment 31 and a main brush cover 32 detachably connected to each other, facilitating assembly, disassembly, and maintenance. The brush compartment body and the main brush cover 32 may be detachably connected by at least one of the following: a screw, a snap-fit ​​structure, a mortise and tenon structure, or a magnetic suction structure. As shown in Figures 28 to 30, the compartment body 300 is provided with a main brush port 34 and a coupling cavity 33. The blade 2012 passes through the main brush port 34 to engage with a surface to be cleaned. The coupling cavity 33 is located on the outer peripheral side of the second locking part 202 and engages with the second locking part 202. The main brush compartment 31 and the main brush cover 32 enclose a cavity that houses the rolling brush 100. The cavity has an opening, namely the main brush port 34. A portion of the rolling brush 100 passes through the main brush port 34 and comes into contact with a surface to be cleaned. The main brush compartment 31 and the main brush cover 32 enclose the coupling cavity 33, which houses the second locking part 202. The coupling cavity 33 is specifically formed to enclose the shaft 2011 and the compartment body 300. The shape of the coupling cavity 33 is adapted to the shape of the second locking part 202. The coupling cavity 33 is shaped as an annular cavity that is slightly smaller than the second locking part 202, and the outer edge of the second locking part 202 is always in close contact with the coupling cavity 33. The maximum distance from the outer edge of the main blade body 122 to the shaft axis 2011 is greater than the maximum distance from the outer wall of the main brush cover 32 to the shaft axis 2011, such that the main blade body 122 can pass through the main brush port 34 and interfere with a surface to be cleaned. The number of 100 rolling brushes can be one, two, three, four, or other quantities; and the material, size, and number of 100 rolling brushes can be configured according to specific needs to meet different cleaning requirements. In one implementation, the rolling brush assembly 200 includes at least one rolling brush 100. Both ends of the rolling brush 100 are connected to rotating shafts, and both ends of the rolling brush 100 are provided with locking parts 202. When the rolling brush 100 is a full double-arm rolling brush 100, one end of the rolling brush 100 is in power connection with the drive device via a rotating shaft, and the other end of the rolling brush 100 is rotationally connected to the compartment body 300 via another rotating shaft. When the rolling brush 100 rotates and interferes with the surface to be cleaned, hairs on the blades 2012 can move toward either end of the rolling brush 100. In view of this, a second locking part 202 can be provided at both ends of the rolling brush 100 to block the moving hairs and prevent them from becoming entangled around the rotating shaft in either direction. In one implementation, the rolling brush assembly 200 includes at least one rolling brush 100. One end of the rolling brush 100 is connected to a rotating shaft, and the second locking part 202 is provided at one end of the rolling brush 100 near the drive device. When the rolling brush 100 is a cantilevered rolling brush 100, one end of the rolling brush 100 is connected to the drive device via a rotating shaft, and the other end of the rolling brush 100 is cantilevered. As the rolling brush 100 rotates and interferes with the surface to be cleaned, hairs on the blade 2012 can move toward either end of the rolling brush 100. When the hairs on the blade 2012 move away from the rotating shaft, they can be drawn into the air duct or dislodged from the rolling brush 100 during the movement. Therefore, a second locking part 202 can be provided at one end of the rolling brush 100 near the rotating shaft to block the moving hairs and prevent them from becoming entangled around the rotating shaft. When the number of cantilevered rolling brushes is two or more, at least two of the rolling brushes are arranged opposite each other along their own axial directions. These two rolling brushes, rotating at different speeds, cause the hairs to be drawn between them, preventing them from clumping together and allowing them to be more effectively drawn into the air duct, thus improving the cleaning effect.Furthermore, the hairs are easily expelled or even broken off when pulled from the 100 rolling brushes, which greatly reduces the situation where hair becomes entangled on the 100 rolling brushes, reduces the situation of deformation of the 100 rolling brushes caused by hair entanglement on the 100 rolling brushes, and reduces the natural wear on the drive parts of the 100 rolling brushes, thereby extending the service life of the cleaning device, reducing the frequency of manually cleaning hair from the 100 rolling brushes, and improving user satisfaction. A cleaning system is provided, comprising a cleaning unit and a base station. The cleaning unit includes either any of the 100 rolling brushes described above, or any of the 200 rolling brush assemblies described above, and the base station provides maintenance for the cleaning unit. The 100 rolling brush is applied to a cleaning system. The cleaning system includes a cleaning device and a base station. The cleaning device can be a self-propelled cleaning robot or other types of cleaning robots that meet the requirements. The self-propelled cleaning robot is a device that automatically performs cleaning in a designated area without requiring user intervention. Specifically, the cleaning device can include a robotic vacuum cleaner, an integrated robotic vacuum and mop, and similar devices. The cleaning unit includes either a 100 rolling brush or a 200 set of rolling brushes. The 100 rolling brush or the 200 set of rolling brushes is mounted under the cleaning unit and can be used to remove dirt from a surface. The 100 rolling brush can also be used for dry cleaning. As shown in Figure 32, a rolling brush device is provided for use in a cleaning apparatus. The rolling brush device includes a rolling brush assembly 200, a transmission portion 302, and a drive portion 303. The rolling brush assembly 200 includes at least a first rolling brush 1011 and a second rolling brush 1012. The transmission portion 302 includes a first transmission mechanism 21 and a second transmission mechanism 22. The first transmission mechanism 21 is connected to the first rolling brush 1011, and the second transmission mechanism 22 is connected to the second rolling brush 1012.Drive portion 303 drives the first transmission mechanism 21 and the second transmission mechanism 22 to drive the first rolling brush 1011 and the second rolling brush 1012 to rotate, and drive portion 303 drives the second transmission mechanism 22 to drive the second rolling brush 1012 to rotate. There is a difference in rotational speed between the first rolling brush 1011 and the second rolling brush 1012. The implementations described herein provide a cleaning apparatus. The cleaning apparatus includes a main apparatus body and a cleaning system. The cleaning system includes a roller brush assembly, and the roller brush assembly includes a set of 200 roller brushes. The set of 200 roller brushes is disposed beneath the main apparatus body and can perform the cleaning treatment of dirt on the surface to be cleaned. The roller brush assembly can be a dry cleaning assembly. The roller brush commonly used in related technology is usually a single unit. When the roller brush encounters hairs and other thread-like objects characterized by their considerable length and soft material, the long, soft hairs can spontaneously form many different configurations in their natural state. After encountering the roller brush, they tend to tangle, making it easier for them to become entangled on the roller brush and its rotating shaft. Therefore, after prolonged operation, a large amount of hair entangled on the roller brush can cause deformation of the brush and further increase the natural wear on the roller brush's drive mechanism, thus reducing the cleaning appliance's lifespan.Furthermore, hairs can easily become tangled and clump together after being removed from the roller brush, making them difficult to vacuum into the air duct and thus affecting cleaning efficiency. Therefore, it is necessary to manually clean the hairs from the roller brush at regular intervals, which is time-consuming and laborious. In view of this, a rolling brush device is provided. The rolling brush device includes a set 200 of rolling brushes, a transmission portion 302, and a drive portion 303. The drive portion 303 drives a first rolling brush 1011 to rotate via a first transmission mechanism 21, and the transmission portion 302 drives a second rolling brush 1012 to rotate via a second transmission mechanism 22. The two rolling brushes have different speeds. It will be appreciated that the rolling brush device includes at least two rolling brushes. These at least two rolling brushes, rotating at different speeds, cause the hair to be drawn between them, preventing it from clumping together and allowing for better suction into the air duct, thus improving the cleaning effect. Furthermore, the hair breaks easily when pulled by the rolling brushes, which greatly reduces the occurrence of hair becoming entangled on them, minimizes brush deformation caused by hair entanglement, and reduces the natural wear on the rolling brush drive parts. This extends the cleaning device's lifespan, reduces the frequency of manually cleaning hair from the rolling brush, and improves user satisfaction. The number of roller brushes can be two, three, four, or other quantities. Two adjacent roller brushes can have different rotation speeds to achieve hair removal between them at varying speeds. The material, size, and number of roller brushes can be configured according to specific needs to meet different cleaning requirements. You will notice that the 200 roller brush set includes a first roller brush 1011 and a second roller brush 1012. The first roller brush 1011 rotates at a first rotational speed, and the second roller brush 1012 rotates at a second rotational speed. The first rotational speed is different from the second rotational speed. As a result, when the first roller brush 1011 and the second roller brush 1012 are in contact with the hairs, the difference in rotational speed between the two brushes causes the hairs to tense up and remain taut, making it difficult for them to clump together. This makes it less likely that the hairs will become entangled on the roller brushes, and they are more likely to be drawn into the air duct. You will notice that the hairs being pulled are prone to breakage when the two rolling brushes rotate at different speeds, and after breaking, the length of the hairs is shortened, so that they are less likely to tangle on the rolling brushes and more likely to be sucked into the air duct. In a specific implementation, when the higher-speed roller brush first encounters the threaded objects, and the lower-speed roller brush later encounters them, the threaded objects will be pulled between the two roller brushes. This causes the threaded objects to tend to move into the gap between the two brushes, making them less likely to become entangled on the roller brushes and more likely to be drawn into the air duct. Conversely, when the lower-speed roller brush first encounters the threaded objects, and the higher-speed roller brush later encounters them, the threaded objects will be more spread out between the two roller brushes, making them less likely to become entangled on the roller brush and more likely to be drawn into the air duct. In one implementation, as shown in Figure 32, the rolling brush device further includes a mounting frame 304. The drive portion 303 and the transmission portion 302 are provided in the mounting frame 304, and the mounting frame 304 is connected to the main body of the cleaning apparatus. The 200 roller brush assembly is mounted on the main body of the cleaning appliance via the 304 mounting frame. The 200 roller brush assembly, which makes contact with the surface to be cleaned, sweeps dirt from the floor and rolls it to the front of the suction port between the 200 roller brush assembly and the dust box. The dirt is then drawn into the air duct and into the dust box for dry cleaning. As shown in Figures 32 to 35, the 304 mounting frame can also include a connecting rod. The 304 mounting frame is connected to the main body of the unit via the connecting rod. An adaptable floating design can be adopted. Under the weight of the rolling brush assembly, the 200 rolling brush assembly can swing freely downwards, ensuring that it maintains constant contact with the surface to be cleaned under a certain pressure. As the surface to be cleaned moves up and down, the 200 rolling brush assembly remains in close contact with the floor and floats with the surface being cleaned. In one implementation, as shown in Figure 33, the first rolling brush 1011 and the second rolling brush 1012 can be arranged coaxially, so that the first rolling brush 1011 and the second rolling brush 1012 can interfere with and pull on the same thread-like object. In an implementation, as shown in Figure 33, there may be contact between the first rolling brush 1011 and the second rolling brush 1012, or there may be no contact between the first rolling brush 1011 and the second rolling brush 1012. In this embodiment, for example, there is no contact between the first rotating rolling brush 1011 and the second rotating rolling brush 1012. Filiform objects are strained or even broken under the traction of the rolling brushes at different speeds, and it is more likely that the rolling brushes at different speeds will expel the filiform objects, causing them to be drawn into the air duct. The first rolling brush 1011 and the second rolling brush 1012 are separated from each other, so that filiform objects cannot become entangled between them. Furthermore, a gap is formed between the two rolling brushes, and the first rolling brush 1011 and the second rolling brush have a tight fit.The clearance is located at the air inlet position of the air duct to prevent the clearance from being too large, which causes an air leak, and the small clearance can guarantee the gas flow speed between the first rolling brush 1011 and the second rolling brush 1012, facilitating the suction of filiform objects in the air duct. In a feasible embodiment, the ratio of the rotational speed of the first rolling brush 1011 to the rotational speed of the second rolling brush 1012 is in the range of 0.8 to 0.99. It will be observed that there is a difference in rotational speed between the first rolling brush 1011 and the second rolling brush 1012 to pull the thread-like objects when they come into contact. In a specific implementation, the drive portion 303 drives the rolling brush to rotate via the transmission portion 302, to at least interfere with the impurities on the surface to be cleaned. If the difference in rotational speed between the two brushes is too great, the difference in friction between the rolling brush and the surface to be cleaned is also great, which can increase the load on the drive portion 303.In view of this, it is appropriate that the difference in rotational speeds between the first rolling brush 1011 and the second rolling brush 1012 can form traction on filiform objects such as hairs, which means that the ratio of the rotational speed of the first rolling brush 1011 to the rotational speed of the second rolling brush 1012 can be in the range of 0.8 to 0.99. In one implementation, as shown in Figures 34 and 35, the drive portion 303 further includes a first drive part 31 and a transmission shaft 23. The output shaft of the first drive part 31 is in a power connection to the first transmission mechanism 21, and the first transmission mechanism 21 is in a power connection to the second transmission mechanism 22 via the transmission shaft 23. There is a difference in transmission ratio between the first transmission mechanism 21 and the second transmission mechanism 22. In the above embodiment, where the first transmission mechanism 21 and the second transmission mechanism 22 share a common drive portion, the drive portion 303 includes the first drive portion 31 and the drive shaft 23. The first transmission mechanism 21 and the second transmission mechanism 22 are in a power connection via the drive shaft 23 and are driven by the first drive portion 31, meaning that the output shaft of the first drive portion 31 is in a power connection with the first transmission mechanism 21 to drive the first rolling brush 1011 to rotate, and the first transmission mechanism 21 is in a power connection with the second transmission mechanism 22 to drive the second rolling brush 1012 to rotate.Since the transmission ratio of the first transmission mechanism 21 and the second transmission mechanism 22 are different, the rotational speed of the first rolling brush 1011 is different from the rotational speed of the second rolling brush 1012. By providing the transmission shaft 23, it is possible to achieve the function of driving two rolling brushes to rotate at different speeds through a single drive unit, which reduces the power module, simplifies the structure, has a small footprint, and reduces cost. In one implementation, as shown in Figures 36 to 38, the first transmission mechanism 21 includes a first gear set 211. The gear set 211 includes a first output end and a second output end. The first output end is in a feed connection with the first rolling brush 1011, and the second output end is in a feed connection with the drive shaft 23. The second transmission mechanism 22 includes a second gear set 221. The drive shaft 23 is in a feed connection with the second gear set 221, and the output end of the second gear set 211 is in a feed connection with the second rolling brush 1012. As shown in Figure 36, the output shaft of the first transmission part 31 is in power connection with the first gear set 211. The first output end of the first gear set 211 is connected to the first rolling brush 1011 to drive the first rolling brush 1011 to rotate, and the second output end of the first gear set 211 is connected to the transmission shaft 23 to drive the transmission shaft 23 to rotate. As shown in Figures 37 and 38, the transmission shaft 23 is in power connection with the second gear set 221, and the output end of the second gear set 221 is connected to the second rolling brush 1012 to drive the second rolling brush 1012 to rotate.The transmission difference can be achieved through the different structures of the first set of 211 gears and the second set of 221 gears, and can be specifically designed by adjusting the gear structure, quantity, and number of teeth, to perform the function of adjusting the transmission ratio difference. In one implementation, as shown in Figure 39, the first gear set 211 includes a first gear 2111, a second gear 2112, and a third gear 2113. The first gear 2111 is connected to an output shaft of the first drive part 31. The first gear 2111 is in a feed connection with the second gear 2112. The second gear 2112 is a first output end and is arranged coaxially with the first rolling brush 1011. Either the first gear 2111 or the second gear 2112 is in a feed connection with the third gear 2113. The third gear 2113 is a second output end and is connected to the drive shaft 23. In the above embodiment, where the first transmission mechanism 21 and the second transmission mechanism 22 share a common drive portion, the first gear set 211 includes the first gear 2111 connected to an output shaft of the first drive portion 31. The first gear 2111 is in a feed connection to the first output end. The first gear 2111 or the first output end is in a feed connection to the second output end. Other gears meeting the requirements may also be provided between the first gear 2111 and the first output end, between the first gear 2111 and the second output end, or between the first output end and the second output end, according to the feed requirements. As shown in Figure 39, the first gear set 211 may further include a fourth gear 2114 and a fifth gear 2115. The fourth gear 2114 is provided between the first gear 2111 and the second gear 2112 and meshes with the first gear 2111 and the second gear 2112. The fifth gear 2115 is provided between the first gear 2111 and the third gear 2113 and meshes with the first gear 2111 and the third gear 2113. Alternatively, the fifth gear 2115 is provided between the second gear 2112 and the third gear 2113 and meshes with the second gear 2112 and the third gear 2113. The first output end of the first gear set 211 is the second gear 2112. The fourth gear 2114 and / or the fifth gear 2115 may mesh between the first gear 2111 and the second gear 2112 for transmission. The second output end of the first gear set 211 is the third gear 2113. A sixth gear 2116 may mesh between the first gear 2111 and the third gear 2113 or between the second gear 2112 and the third gear 2113 for transmission. Each of the fourth gear 2114, the fifth gear 2115, and the sixth gear 2116 is not limited to a single gear, but may also be a plurality of gears to achieve transmission between the drive portion 303, the first output end, and the second output end. In one implementation, as shown in Figure 40, the second gear set 221 includes a seventh gear 2211 and an eighth gear 2212. The seventh gear 2211 is connected to the drive shaft 23. The seventh gear 2211 is in a feed connection with the eighth gear 2212. The eighth gear 2212 is a third output gear and is connected to the second rolling brush 1012. The eighth gear 2212 is arranged coaxially with the second rolling brush 1012. In the above embodiment, where the first transmission mechanism 21 and the second transmission mechanism 22 share a common drive portion, the second gear set 221 includes a seventh gear 2211 connected to the transmission shaft 23. The seventh gear 2211 is in a feed connection with the output end of the second gear set 221. Additional gears meeting the requirements may be provided between the seventh gear 2211 and the output end, according to the feed requirements. As shown in Figure 40, the second set 221 of gears may further include a ninth gear 2213, and the ninth gear 2213 is provided between the seventh gear 2211 and the eighth gear 2212 and meshes with the seventh gear 2211 and the eighth gear 2212. The output end of the second gear set 221 is the eighth gear 2212. The ninth gear 2213 can mesh between the seventh gear 2211 and the eighth gear 2212 for transmission. The ninth gear 2213 is not limited to a single gear; it can also be a plurality of gears to achieve the transmission function between the drive shaft 23 and the output end of the second gear set 221. In one implementation, as shown in Figure 41, the drive portion 303 further includes a first drive part 31 and a second drive part 32. The output shaft of the first drive part 31 is in a power connection with the first transmission mechanism 21, and the output shaft of the second drive part 32 is in a power connection with the second transmission mechanism 22. In the above embodiment, where the first transmission mechanism 21 and the second transmission mechanism 22 do not share a common drive portion, the drive portion 303 includes the first drive portion 31 and the second drive portion 32. The first drive portion 31 drives the first rolling brush 1011 to rotate via the first transmission mechanism 21, and the second drive portion 32 drives the second rolling brush 1012 to rotate via the second transmission mechanism 22. It will be noted that there is a difference in output rotation speed between the first drive part 31 and the second drive part 32; and / or, there is a difference in transmission ratio between the first transmission mechanism 21 and the second transmission mechanism 22, to achieve the function of forming a difference in rotation speed between the first rolling brush 1011 and the second rolling brush 1012. As shown in Figure 41, the first transmission mechanism 21 includes the first gear set 211. The output end of the first gear set 211 is in feed connection with the first rolling brush 1011. The second transmission mechanism 22 includes a second gear set 221. The output end of the second gear set 221 is in feed connection with the second rolling brush 1012. In the case where the output rotational speed of the first drive part 31 and the output rotational speed of the second drive part 32 are equal, the transmission ratio of the first transmission mechanism 21 may be different from the transmission ratio of the second transmission mechanism 22. That is, the first set of gears 211 and the second set of gears 221 have different structures, in order to achieve the effect that the rotational speeds of the first rolling brush 1011 and the second rolling brush 1012 are different. In the case where the output rotational speed of the first drive part 31 and the output rotational speed of the second drive part 32 are different, the transmission ratio of the first transmission mechanism 21 can be equal to the transmission ratio of the second transmission mechanism 22. That is, the first set of gears 211 and the second set of gears 221 have the same structure, in order to achieve the effect that the speeds of the first rolling brush 1011 and the second rolling brush 1012 are different. In the case where the output rotational speed of the first drive part 31 and the output rotational speed of the second drive part 32 are different, the transmission ratio of the first transmission mechanism 21 and the transmission ratio of the second transmission mechanism 22 may be different. That is, the first set of gears 211 and the second set of gears 221 have different structures, in order to achieve the effect that the rotational speeds of the first rolling brush 1011 and the second rolling brush 1012 are different. In one implementation, as shown in Figure 36, the first transmission mechanism 21 further includes a first housing 212. The first gear set 211 is located in the first housing 212. The first drive part 31 is located outside the first housing 212. The output shaft of the first drive part 31 passes through the first housing 212 and is in power connection with the first gear set 211. The rotating shaft of the first rolling brush 1011 passes through the first housing 212 and is in power connection with the first gear set 211. It will be noticed that the first housing 212 fits over the first set 211 of gears. The first gear 2111, the second gear 2112, the third gear 2113, the fourth gear 2114, the fifth gear 2115, and the sixth gear 2116 are all located in the first housing 212. The first housing 212 is used to provide good protection to the first set 211 of gears, thus promoting a longer service life and greater reliability, while also ensuring good transmission accuracy. Specifically, the first housing 212 may include a first detachable upper housing and a first lower housing, which can be removably connected to facilitate the disassembly and assembly of the first housing 212 and also the disassembly and assembly of the first gear set 211. The first upper housing and the first lower housing can be removably connected by at least one of the following: a screw, a snap-fit ​​structure, a mortise and tenon structure, and a magnetic suction structure. In the case where the first transmission mechanism 21 and the second transmission mechanism 22 share a common drive portion, the transmission shaft 23 passes through the first housing 212 and is in a power connection with the first gear set 211. That is, the transmission shaft 23 passes through the first housing 212 to connect with the third gear 2113. In one implementation, as shown in Figure 37, the second transmission mechanism 22 further includes a second housing 222. The second gear set 221 is located inside the second housing 222. The rotating shaft of the second rolling brush 1012 passes through the second housing 222 and is in feed connection with the second gear set 221. It will be noticed that the second housing 222 fits over the second set 221 of gears. The seventh gear 2211, the eighth gear 2212, and the ninth gear 2213 are all located within the second housing 222, and the second housing 222 is used to provide good protection for the second set 221 of gears, thus promoting a longer service life and greater reliability, while also ensuring good transmission accuracy. Specifically, the second housing 222 may include a second removable upper housing and a second lower housing that are removably connected, facilitating the disassembly and assembly of the second housing 222 and also the disassembly and assembly of the second gear set 221. The second upper housing and the second lower housing may be removably connected by at least one of the following: a screw, a snap-fit ​​structure, a mortise and tenon structure, and a magnetic suction structure. In the case where the first transmission mechanism 21 and the second transmission mechanism 22 share a common drive portion, the transmission shaft 23 passes through the second housing 222 and is in power connection with the second set of gears 221. That is, the transmission shaft 23 passes through the second housing 222 to connect with the eighth gear 2212. In the case where the first transmission mechanism 21 and the second transmission mechanism 22 do not share a common drive part, the second drive part 32 is located outside the second housing 222. The output shaft of the second drive part 32 passes through the second housing 222 and is in a power connection with the second gear set 221. The rotary shaft of the second rolling brush 1012 passes through the second housing 222 and is in a power connection with the second gear set 221. A cleaning apparatus is provided, comprising a main apparatus body and any of the rolling brush devices as described above. The rolling brush device is connected to the main apparatus body. Additionally, a cleaning system is provided, which includes any one of the roller brush assemblies as described above or a cleaning apparatus as described above. The base station is configured to provide maintenance for the cleaning apparatus. The rolling brush device is applied to a cleaning appliance. The cleaning appliance may be a self-propelled cleaning robot or other types of cleaning robots that meet the requirements. A self-propelled cleaning robot is an appliance that automatically performs cleaning in a designated area without requiring user intervention. Specifically, the cleaning appliance may include a robotic vacuum cleaner, an integrated robotic vacuum cleaner and mop, and similar devices. In the descriptions in this specification, references to terms such as "an embodiment," "some embodiments," "specific embodiments," and the like indicate that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of this utility model.In this descriptive report, the schematic representations of the terms mentioned above may not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples as appropriate. Regular experts in the technique readily understand that each of the advantageous modes described above can be freely combined and overlapped, provided they do not conflict. The above are merely preferred embodiments of this disclosure and are not intended to limit it. Within the spirit and principles of this disclosure, any modification, equivalent substitution, improvement, or the like falls within the scope of protection of this disclosure. The content mentioned above represents only preferred modes of implementation of this disclosure. It should be noted that persons skilled in the art may make various improvements and modifications without departing from the technical principles of this disclosure, and these improvements and modifications should also be considered within the scope of protection of this disclosure.

Claims

1. A roller brush assembly comprising at least two roller brushes, wherein each roller brush comprises a connecting end (11) and a free end, the connecting end (11) being driven by a drive device, the free ends of the at least two roller brushes being arranged oppositely, and a gap being provided between the oppositely arranged free ends.

2. A roller brush assembly according to claim 1, wherein the roller brush comprises a shaft and a cleaning portion disposed on the shaft, the cleaning portion comprising a blade (2) and / or first bundles (3) of bristles, or the cleaning portion is integrally integrated with the blade (2) and the first bundles (3) of bristles.

3. A roller brush assembly according to claim 2, wherein when the cleaning portion comprises the blade (2), the blade (2) is detachably disposed on the shaft. 4.A rolling brush assembly according to claim 2, wherein the cleaning portion comprises the blade (2) and the first bundles (3) of bristles, there is a plurality of blades (2), and the plurality of blades (2) are arranged radially to the shaft, the first bundles (3) of bristles are arranged adjacent to the blades (2) in a circumferential distribution with respect to the shaft.

5. A rolling brush assembly according to claim 2, wherein the cleaning portion comprises the first bundles (3) of bristles, the first bundle (3) of bristles comprises a fixed end and a movable end, the fixed end being connected to the shaft, and the movable end extending away from the shaft and inclined toward the free end of the rolling brush.

6. A rolling brush assembly according to claim 4, wherein an outer wall of the rolling brush is elastically deformable. 7.A roller brush assembly according to claim 4, wherein an outer wall of the roller brush is rigid.

8. A roller brush assembly according to claim 2, wherein, when the cleaning portion comprises the blade (2), the shaft is integrally formed with the blade (2).

9. A roller brush assembly according to claim 8, wherein the shaft and the blades (2) are available in two colors.

10. A roller brush assembly according to claim 8, wherein the shaft is made of PC, ABS, or PA, or the shaft is made of a combination of PC and ABS, or a combination of PC and GF, or a combination of ABS and GF, or a combination of PC, ABS, and GF, or a combination of PA and GF; and the blade (2) is made of TPU or TPE, or silica gel, or rubber. 11.A roller brush assembly according to any one of claims 1 to 10, wherein the roller brush comprises a shaft and an end cap (12), wherein the end cap (12) is disposed on the shaft to form the free end of the roller brush, and the end surface of the end cap (12) is obliquely inclined.

12. A roller brush assembly according to claim 11, wherein the end surfaces of the oppositely disposed end caps (12) of the roller brushes are inclined in the same direction.

13. A roller brush assembly according to claim 11, wherein the end surface is a plane or an arc surface. 14.A roller brush assembly according to any of claims 1 to 13, wherein the roller brush assembly further includes a first locking part (8), at least part of the first locking part (8) being disposed between the roller brushes arranged in a opposite manner.

15. A roller brush assembly according to claim 14, wherein the roller brush assembly comprises a roller brush compartment, and the first locking part (8) is disposed on an inner wall of the roller brush compartment. 16.A roller brush assembly according to claim 15, wherein the roller brush compartment is provided with a dust collection port (91), the dust collection port (91) is configured to communicate with a dust box, and the first locking part (8) is arranged on the inner wall of the roller brush compartment on the side opposite the dust collection port (91).

17. A roller brush assembly according to claim 15, wherein the first locking part (8) comprises a connecting segment (81) and a locking segment (82), the connecting segment (81) is connected to the inner wall of the roller brush compartment, the locking segment (82) is connected to the connecting segment (81), and the extension direction of the locking segment (82) is different from that of the connecting segment (81). 18.A roller brush assembly according to any one of claims 1 to 17, wherein the roller brush assembly comprises a support comprising a sleeve stem (41), and the roller brush is sleeved onto the sleeve stem (41).

19. A roller brush assembly according to claim 18, wherein the sleeve stem (41) comprises an inner stem and an outer stem, the outer stem being sleeved onto the outer peripheral side of the inner stem, the inner stem being provided with a bearing (42), and the inner stem being connected to an inner wall of the outer stem via the bearing (42).

20. A roller brush assembly according to claim 19, wherein there are at least two bearings (42), and the at least two bearings (42) are arranged in the axial direction of the inner stem. 21.

21. Roller brush assembly according to claim 19, wherein the bearing (42) is an oil-filled bearing (42) and / or a ball bearing (42).

22. Roller brush assembly according to claim 18, wherein there are two supports, and the sleeve stems (41) of the two supports are the same or different.

23. Roller brush assembly according to claim 22, wherein the roller brush is provided with a sleeve bore, and the roller brush is sleeved onto the sleeve stem (41) through the sleeve bore, and the sleeve bores of different roller brushes are the same or different. 24.A roller brush assembly according to any one of claims 1 to 23, wherein the roller brush assembly comprises a roller brush compartment, the roller brush compartment is provided with a dust collection port (91), the dust collection port (91) is configured to communicate with a dust box, and the free ends of the at least two roller brushes are arranged obliquely with respect to a side wall of the roller brush container, in the direction of the dust collection port (91).

25. A roller brush assembly according to claim 24, wherein the roller brush assembly comprises a support, and the roller brush is rotatably arranged on the support, one end of the support is connected to the drive device, and the other end of the support is inclined toward the dust collection port (91). 26.A roller brush assembly according to claim 24, wherein the roller brush assembly comprises a main brush cover (9), and a dust inlet is arranged in the main brush cover (9), and the opening angle of the dust inlet is adapted to the angle formed between the two roller brushes. 27.A roller brush assembly according to claim 1, wherein the blade (2012) comprises: a main blade body (122); and an extendable portion (121) disposed at one end of the main blade body (122), wherein at least one of the roller brushes comprises: a main roller brush body (201) comprising a shaft (2011) and a blade (2012), the blade (2012) being disposed on the outer peripheral side of the shaft (2011); and a second locking part (202) disposed at the end of the body (201), wherein the extendable portion (121) of the blade (2012) is inclined with respect to the axis of the shaft (2011) and inserted into the second locking part (202). 28.A roller brush assembly according to claim 27, wherein the extension portion (121) is arranged on an end portion of the main blade body (122), wherein a portion of the extension portion (121) is inserted into the second locking portion (202), the extension portion (121) is located on an inner side of an outer edge of the main blade body (122), and the extension portion (121) is located on an inner side of an outer edge of the second locking portion (202).

29. A roller brush assembly according to claim 28, wherein the radial height of at least a portion of the extension portion (121) is less than the radial height of the second locking portion (202). 30.A rolling brush assembly according to claim 28, wherein there is a plurality of blades (2012), and the plurality of blades (2012) are arranged in the radial direction of the shaft (2011), and the radial distance between the extension portion (121) and the shaft (2011) is less than the radial distance between the outer edge of the main blade body (122) and the shaft (2011).

31. A rolling brush assembly according to claim 28, wherein at least part of an outer edge of the extension portion (121) is a hair guide segment, and the guide segment is arranged between the second locking portion (202) and the main blade body (122).

32. A rolling brush assembly according to claim 31, wherein the hair guide segment comprises an oblique segment and / or an arc segment. 33.A rolling brush assembly according to claim 32, wherein the ratio of the minimum radial distance between the guide segment and the shaft (2011) to the radial distance between the outer edge of the main blade body (122) and the shaft (2011) is in the range of 0.5 to 0.

9.

34. A rolling brush assembly according to claim 28, wherein the shaft (2011) is provided with an end plate (2013), and a plurality of blades (2012) are embedded in the end plate (2013), and the blades (2012) extend beyond the side of the end plate (2013) far from the main blade body (122), and the second locking part (202) is arranged on the side of the end plate (2013) far from the main blade body (122). 35.A roller brush assembly according to claim 27, wherein the shaft (2011) comprises: a main shaft body (111); and an annular flange (112) disposed on an end portion of the main shaft body (111), the second locking portion (202) being sheathed in the annular flange (112).

36. A roller brush assembly according to claim 28, wherein the second locking portion (202) comprises second bundles (2022) of bristles circumferentially distributed with respect to the shaft (2011), and the extension portion (121) is inserted into a gap between the second bundles (2022) of bristles. 37.A roller brush assembly according to claim 36, wherein the second locking portion (202) comprises an annular portion (2021), the annular portion (2021) being sheathed over the shaft (2011), and the second bundle (2022) of bristles comprising a fixed end and a free end, the fixed end being connected to the annular portion (2021), and the free end extending away from the shaft (2011).

38. A roller brush assembly according to claim 36, wherein the second bundle (2022) of bristles is made of at least one of a rubber material, a plastic fiber material, an inorganic fiber material, a vegetable fiber material, and an animal fiber material. 39.A roller brush assembly according to claim 28, wherein the second locking part (202) comprises an annular portion (2021) that fits over the shaft (2011), and the annular portion (2021) is provided with a groove (2023) into which the extension portion (121) is inserted.

40. A roller brush assembly according to claim 39, wherein the second locking part (202) is made of a felt material.

41. A roller brush assembly according to claim 36 or 39, wherein the second locking part (202) and the shaft (2011) are integrally formed and have a split structure. 42.A roller brush assembly according to claim 28, wherein the roller brush assembly is applied to a cleaning apparatus, and the cleaning apparatus comprises a compartment body (300) for housing the roller brush, and a second locking part (202) is located between the shaft (2011) and the compartment body (300) and fills the gap between the shaft (2011) and the compartment body (300), and stops the movement of hair into the gap.

43. A roller brush assembly according to claim 42, wherein there is no contact between the blade (2012) and the compartment body (300), while the second locking part (202) and the compartment body (300) are press-fitted. 44.A roller brush assembly according to claim 43, wherein at least part of the second locking portion (202) is elastic, and the second locking portion (202) is always in close contact with the compartment body (300) during a relative movement of the second locking portion (202) and the compartment body (300).

45. A roller brush assembly according to claim 27, wherein the roller brush assembly (200) comprises a compartment body (300), the roller brush (100) is disposed in the compartment body (300), and the compartment body (300) is provided with: a main brush port (34), the blade (2012) penetrating the main brush port (34) to interfere with the surface to be cleaned; and a coupling cavity (33), located on the outer peripheral side of the second locking part (202) and interfering with the second locking part (202). 46.A set of rolling brushes according to claim 19, wherein the connecting end of each rolling brush is in power connection with the drive device via a rotating shaft, and the connecting end of the rolling brush is provided with a second locking part (202). 47.A rolling brush device comprising: the assembly (200) of rolling brushes according to any one of claims 1 to 46; a transmission portion (302) comprising a first transmission mechanism (21) and a second transmission mechanism (22), wherein the first transmission mechanism (21) is connected to a first rolling brush (1011), and the second transmission mechanism (22) is connected to the second rolling brush (1012); and a drive portion (303) configured to drive the first transmission mechanism (21) and the second transmission mechanism (22) to rotate the first rolling brush (1011) and the second rolling brush (1012), wherein there is a difference in rotational speed between the first rolling brush (1011) and the second rolling brush (1012). 48.A rolling brush device according to claim 47, further comprising: a mounting frame (304) wherein the drive portion (303) and the transmission portion (302) are arranged in the mounting frame (304), and the mounting frame (304) is connected to a main body of a cleaning apparatus.

49. A rolling brush device according to claim 47, wherein the first rolling brush (1011) and the second rolling brush (1012) are arranged coaxially.

50. A rolling brush device according to claim 47 or 49, wherein the first rolling brush (1011) and the second rolling brush (1012) are arranged so as to contact each other.

51. Rolling brush device according to claim 47 or 49, wherein the first rolling brush (1011) and the second rolling brush (1012) are arranged so as not to contact each other. 52.A rolling brush device according to claim 47, wherein the first rolling brush (1011) is associated with a drive transmission having a transmission ratio of between 0.8 and 0.99 with respect to the drive transmission of the second rolling brush.

53. A rolling brush device according to claim 47, wherein the drive portion (303) further comprises: a first drive part (31), an output shaft (32) of the first drive part (31) being connected to the first transmission mechanism (21); and a transmission shaft (23), the first transmission mechanism (21) being connected to the second transmission mechanism (22) via the transmission shaft (23); wherein there is a difference in transmission ratio between the first transmission mechanism (21) and the second transmission mechanism (22). 54.Rolling brush device according to claim 53, wherein the first transmission mechanism (21) comprises a first set of gears (211), the first set of gears (211) comprising a first output end and a second output end, the first output end being in a feed connection with the first rolling brush (1011), and the second output end being in a feed connection with the drive shaft (23); and the second transmission mechanism (22) comprises a second set of gears (221), the drive shaft (23) being in a feed connection with the second set of gears (221), and an output end of the second set of gears (221) being in a feed connection with the second rolling brush (1012). 55.Rolling brush device according to claim 54, wherein the first gear set (211) comprises: a first gear (2111) connected to the output shaft (32) of the first drive part (31); a second gear (2112), the first gear (2111) being in a feed connection with the second gear (2112), and the second gear (2112) being the first output end and arranged coaxially with the first rolling brush (1011); a third gear (2113), either the first gear (2111) or the second gear (2112) being in a feed connection with the third gear (2113), and the third gear (2113) being the second output end and connected to the drive shaft (23). 56.Rolling brush device according to claim 55, wherein the first gear (211) further comprises: a fourth gear (2114) disposed between the first gear (2111) and the second gear (2112) and meshed with the first gear (2111) and the second gear (2112); and a fifth gear (2115) disposed between the first gear (2111) and the third gear (2113) and meshed with the first gear (2111) and the third gear (2113); or the fifth gear (2115) being disposed between the second gear (2112) and the third gear (2113) and meshed with the second gear (2112) and the third gear (2113). 57.A rolling brush device according to any one of claims 54 to 56, wherein the second gear set (221) comprises: a seventh gear (2211) connected to the drive shaft (23); and an eighth gear (2212) in feed connection with the seventh gear (2211) and with the eighth gear (2212), the eighth gear (2212) being the third output end and connected to the second rolling brush (1012), and arranged coaxially with the second rolling brush (1012).

58. A rolling brush device according to claim 57, wherein the second gear set (221) further comprises: a ninth gear (2213) arranged between the seventh gear (2211) and the eighth gear (2212) and meshed with the seventh gear (2211) and the eighth gear (2212). 59.Rolling brush device according to claim 48, wherein the drive portion (303) further comprises: a first drive part (31), an output shaft of the first part (31) being in a feed connection with the first transmission mechanism (21); and a second drive part (32), an output shaft of the second drive part (32) being in a feed connection with the second transmission mechanism (22); wherein there is a difference in output rotational speed between the first drive part (31) and the second drive part (32); and / or there is a difference in transmission ratio between the first transmission mechanism (21) and the second transmission mechanism (22). 60.Rolling brush device according to claim 59, wherein the first transmission mechanism (21) comprises a first set (211) of gears, and an output end of the first set (211) of gears is in a feed connection with the first rolling brush (1011); and the second transmission mechanism (22) comprises a second set (221) of gears, and an output end of the second set (221) of gears is in a feed connection with the second rolling brush (1012). 61.Rolling brush device according to claim 54 or 60, wherein the first transmission mechanism (21) further comprises: a first housing (212) in which the first gear set (211) is located in the first housing (212), the first drive portion (31) is located outside the first housing (212), the output shaft (32) of the first drive portion (31) penetrates the first housing (212) to be in feed connection with the first gear set (211), and a rotating shaft of the first rolling brush (1011) penetrates the first housing (212) to be in feed connection with the first gear set (211). 62.A rolling brush device according to claim 54 or 60, wherein the second transmission mechanism (22) further comprises: a second housing (222) in which the second set of gears (221) is located, and a rotating shaft of the second rolling brush (1012) penetrates the second housing (222) to be in power connection with the second set of gears (221).

63. A cleaning apparatus comprising: a main apparatus body; and the rolling brush device according to any one of claims 47 to 62, the rolling brush device being connected to the main apparatus body.

64. A cleaning apparatus comprising a set of rolling brushes according to any one of claims 1 to 46. 65.Cleaning system, comprising: the assembly of rolling brushes as claimed in any of claims 1 to 46 or the cleaning apparatus as claimed in claim 63 or 64; a base station configured to provide maintenance to the cleaning apparatus.