SET OF ROTARY BRUSHES, CLEANING DEVICE AND CLEANING SYSTEM

Abstract

This disclosure relates to a set of rotating brushes (5, 7), a cleaning device, and a cleaning system. The set of rotating brushes comprises at least two rotating brushes. The rotating brushes (5, 7) are used to sweep a surface to be cleaned. Each rotating brush (5, 7) comprises a connecting end and a free end. The connecting end is driven by a drive device. The free ends of the at least two rotating brushes (5, 7) are arranged opposite each other, and a gap is arranged between the oppositely arranged free ends. [Fig 1]

Description

Title of the invention: SET OF ROTARY BRUSHES, CLEANING APPLIANCE AND CLEANING SYSTEM technical field

[0001] The present disclosure falls within the field of cleaning equipment, and relates in particular to a set of rotating brushes, a cleaning device and a cleaning system. Context of the invention

[0002] Automatic cleaning devices are a type of equipment that can automatically perform cleaning tasks. Automatic cleaning devices are mainly used in domestic, commercial, and industrial environments, and can effectively save time, simplify tasks, and improve cleaning efficiency. Sweeping robots are a common type of automatic cleaning device. Using sweeping robots can not only reduce workload but also improve cleanliness and quality of life. Summary of the invention

[0003] In a first aspect of the present disclosure, a set of rotating brushes is proposed. The set of rotating brushes comprises at least two rotating brushes, each rotating brush comprising a connecting end and a free end, the connecting end being driven by a drive device, the free ends of the at least two rotating brushes being arranged opposite each other, and a gap being provided between the oppositely arranged free ends.

[0004] In some embodiments, the rotating brush includes a shaft and a cleaning part arranged on the shaft; the cleaning part includes a blade and / or first groups of bristles, the cleaning part optionally being an assembly integrating the blade with the first groups of bristles.

[0005] In some embodiments, the cleaning part includes a blade which is arranged detachably on the shaft rod.

[0006] In some embodiments, when the cleaning part includes a blade and first groups of bristles, there is a plurality of blades, the plurality of blades is arranged in a circumferential direction of the shaft, and the first groups of bristles are arranged between adjacent blades in the circumferential direction of the shaft.

[0007] In certain embodiments, when the cleaning part includes at least a first group of bristles, which includes a fixed end and a movable end, the fixed end is connected with the shaft rod, and the movable end extends in a direction opposite to the shaft rod and is inclined towards the free end of the rotating brush.

[0008] In some embodiments, an outer wall of the rotating brush may be elastically deformable, or the outer wall of the rotating brush may be rigid.

[0009] In some embodiments, the cleaning part includes a blade, formed integrally with the shaft rod.

[0010] In some embodiments, the shaft stem and the blade are produced by two-color injection molding or by injection molding in the mold or by liquid injection molding or by hydroforming.

[0011] In certain embodiments, the tree stem is made from Polycarbonate or Acrylonitrile Butadiene Styrene or Polyamide, or the tree stem is made with a combination of Polycarbonate and Acrylonitrile Butadiene Styrene, or with a combination of Polycarbonate and glass fibers, or a combination of Acrylonitrile Butadiene Styrene and glass fibers, or a combination of Polycarbonate, Acrylonitrile Butadiene Styrene and glass fibers, or a combination of Polyamide and glass fibers; and

[0012] The blade is made from TPU or TPE or silica gel or rubber.

[0013] In some embodiments, the rotating brush includes a shaft rod and an end cap, the end cap is arranged on the shaft rod to form the free end of the rotating brush, and an end surface of the end cap is arranged obliquely.

[0014] In some embodiments, the end surfaces of the end caps arranged opposite the rotating brushes are inclined in the same direction.

[0015] In some embodiments, the end surface is an arc surface or a plane.

[0016] In some embodiments, there is a difference in rotational speed between the two rotating brushes arranged opposite each other.

[0017] In some embodiments, the rotating brush assembly further includes a first blocking part and at least a part of the first blocking part is positioned between the rotating brushes arranged opposite each other.

[0018] In some embodiments, the rotating brush assembly includes a rotating brush bin, and the first blocking part is arranged on an internal wall of the rotating brush bin.

[0019] In some embodiments, the rotary brush assembly includes the rotary brush bin, the rotary brush bin is provided with a dust collection orifice, the dust collection orifice is configured to communicate with a dust compartment, and the first blocking part is arranged on the inner wall of one side of the rotary brush bin opposite the dust collection orifice and is arranged opposite the dust collection orifice.

[0020] In some embodiments, the first blocking part comprises a connecting segment and a blocking segment, the blocking segment is connected to the inner wall of the rotating brush tray, the blocking segment is connected to the connecting segment and an extension direction of the blocking segment is different from an extension direction of the connecting segment.

[0021] In some embodiments, the rotating brush assembly includes a support, the support includes a mounting rod, and the rotating brush is mounted on the mounting rod.

[0022] In some embodiments, the fitting rod comprises an inner rod and an outer rod, the outer rod is fitted onto an outer peripheral side of the inner rod, the inner rod is provided with a bearing, and the inner rod is connected to an inner wall of the outer rod by means of the bearing.

[0023] In some embodiments, there are at least two bearings, and the at least two bearings are arranged in an axial direction of the internal rod.

[0024] In some embodiments, the bearing is an oil retention bearing and / or a ball bearing.

[0025] In some embodiments, there are two supports and the handle stems of the two supports are identical or different.

[0026] In some embodiments, the rotating brush is provided with a mounting hole, and the rotating brush is fitted onto the mounting rod by the mounting hole, and the mounting holes of the different rotating brushes are identical or different.

[0027] In some embodiments, the rotating brush assembly includes a rotating brush bin, the rotating brush bin is provided with a dust collection orifice, the dust collection orifice is configured to communicate with a dust compartment and the free ends of at least two rotating brushes are arranged obliquely towards the dust collection orifice.

[0028] In some embodiments, the rotating brush assembly includes a support, the rotating brush is arranged, in a rotational manner, on the support, one end of the support is connected with the drive device, and the other end of the support is inclined towards the dust collection port.

[0029] In some embodiments, the rotating brush assembly includes a main brush cover, a dust inlet is arranged on the main brush cover, and an opening angle of the dust inlet is adapted to an angle formed between the two rotating brushes.

[0030] In some embodiments, at least one of the rotating brushes comprises: a main rotating brush body including a shaft rod and a blade, the blade being arranged on an external peripheral side of the shaft rod; and a second locking part arranged at an end part of the main rotating brush body, a part of the blade being inclined towards an axial direction of the shaft rod and inserted into the second locking part.

[0031] In certain embodiments, the blade comprises: a main blade body; and an extension portion arranged at an end portion of the main blade body, a portion of the extension portion being inserted into the second locking portion, the extension portion is positioned on an inner side of an outer edge of the main blade body in a radial direction of the main rotating brush body, and the extension portion is positioned on an inner side of an outer edge of the second locking portion.

[0032] In some embodiments, a radial height of at least one part of the extension part is less than a radial height of the second blocking part.

[0033] In some embodiments, there is a plurality of blades, the plurality of blades is arranged in a circumferential direction of the shaft rod, and a radial distance between the extension part and the shaft rod is less than a radial distance between the outer edge of the main blade body and the shaft rod.

[0034] In some embodiments, at least a part of an outer edge of the extension part is a guide segment, and the guide segment is arranged between the second locking part and the main blade body.

[0035] In some embodiments, the guide segment includes an oblique segment and / or an arc segment.

[0036] In some embodiments, a ratio of a minimum radial distance between the guide segment and the shaft rod to a radial surface between the outer edge of the main blade body and the shaft rod is in a range of 0.5 to 0.9.

[0037] In some embodiments, the shaft rod is provided with an end plate, a plurality of blades is integrated on the end plate, the blades extend from one side of the end plate opposite the main blade bodies and the second locking part is positioned on one side of the end plate opposite the main blade bodies.

[0038] In certain embodiments, the shaft comprises: a main shaft body; and an annular flange arranged at an end portion of the main body of shaft rod, the second locking part being fitted onto the annular flange.

[0039] In some embodiments, the second blocking part comprises second groups of hairs arranged in a circumferential direction of the tree stem, and the extension part is inserted into a gap between the second groups of hairs.

[0040] In some embodiments, the second locking part includes an annular part, the annular part is fitted onto the shaft rod, the second group of bristles includes a fixed end and a free end, the fixed end is connected to the annular part, and the free end extends in a direction opposite to the shaft rod.

[0041] In some embodiments, the second group of bristles is made with at least one of a rubber material, a plastic fiber material, an inorganic fiber material, a vegetable fiber material and an animal fiber material.

[0042] In some embodiments, the second locking part includes an annular part, the annular part fits the shaft rod, and the annular part is provided with a groove into which the extension part must be inserted.

[0043] In some embodiments, the second blocking part is made with a felt material.

[0044] In some embodiments, the second locking part and the shaft are formed in a solid manner or with a two-part structure.

[0045] In some embodiments, the rotating brush assembly is applied in a cleaning device, and the cleaning device includes a tub body to house the rotating brush, and the second blocking part is positioned between the shaft rod and the tub body and fills a gap between the shaft rod and the tub body, and stops the movement of hair or fur towards the gap.

[0046] In some embodiments, there is no contact between the blade and the container body and there is interference between the second locking part and the container body.

[0047] In some embodiments, at least a part of the second blocking part is elastic and the second blocking part is always fixed to the tank body or in close contact with it during a process of relative displacement of the second blocking part and the tank body.

[0048] In some embodiments, the rotating brush assembly includes a tank body, the rotating brush is arranged in the tank body, and the tank body is provided with: a main brush orifice, the blade penetrating the main brush orifice to interfere with a surface to be cleaned; and a corresponding cavity located on an external peripheral side of the second blocking part and interfering with the second blocking part.

[0049] In some embodiments, the connecting end of each rotating brush is in power connection with the drive device via a rotating shaft, and the connecting end of the rotating brush is provided with a second locking part.

[0050] In a second aspect of the present disclosure, a rotary brush device is proposed. The rotary brush device comprises: the assembly of rotary brushes mentioned above; a transmission portion comprising a first transmission mechanism and a second transmission mechanism, in which the first transmission mechanism is connected with a first rotary brush and the second transmission mechanism is connected with a second rotary brush; and a drive portion configured to drive the first transmission mechanism and the second transmission mechanism to drive the first rotary brush and the second rotary brush to rotate, in which there is a difference in rotational speed between the first rotary brush and the second rotary brush.

[0051] In certain embodiments, the rotating brush device further comprises: a mounting frame, in which the drive part and the transmission part are arranged on the mounting frame, and the mounting frame is connected with a main body of a cleaning device.

[0052] In some embodiments, the first rotating brush and the second rotating brush are arranged coaxially.

[0053] In some embodiments, there is interference between the first rotating brush and the second rotating brush, or there is no contact between the first rotating brush and the second rotating brush.

[0054] In some embodiments, a ratio of a rotational speed of the first rotating brush to a rotational speed of the second rotating brush is in a range of 0.8 to 0.99.

[0055] In certain embodiments, the drive part further comprises: a first drive part, an output shaft of the first drive part which is in power connection with the first transmission mechanism; and a transmission shaft, the first transmission mechanism being in 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.

[0056] In certain embodiments, the first transmission mechanism comprises a first gear train, the first gear train comprises a first output end and a second output end, the first output end is in power connection with the first rotating brush and the second output end is in power connection with the transmission shaft; the The second transmission mechanism includes a second gear train, the transmission shaft is in power connection with the second gear train, and one output end of the second gear train is in power connection with the second rotating brush.

[0057] In some embodiments, the first gear train comprises: a first gear connected with the output shaft of the first drive part; a second gear, the first gear being in power connection with the second gear and the second gear being the first output end and being arranged coaxially with the first rotating brush; and a third gear, the first gear or the second gear being in power connection with the third gear, and the third gear being the second output end and being connected with the transmission shaft.

[0058] In some embodiments, the first gear train further comprises: 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 is arranged between the second gear and the third gear and meshed with the second gear and the third gear.

[0059] In some embodiments, the second gear train comprises: a seventh gear connected with the transmission shaft; and an eighth gear in power connection with the seventh gear, the eighth gear being a third output end and being connected with the second rotating brush, and arranged coaxially with the second rotating brush.

[0060] In some embodiments, the second gear train further comprises: a ninth gear arranged between the seventh gear and the eighth gear and meshed with the seventh gear and the eighth gear.

[0061] In certain embodiments, the drive part further comprises: a first drive part, an output shaft of the first drive part being in power connection with the first transmission mechanism; and a second drive part, an output shaft of the second drive part being in 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.

[0062] In some embodiments, the first transmission mechanism comprises a first gear train and an output end of the first gear train is in power connection with the first rotating brush; and the second transmission mechanism includes a second gear train and an output end of the second gear train is in power connection with the second rotating brush.

[0063] In some embodiments, the first transmission mechanism further comprises: a first housing, in which the first gear train is positioned in the first housing, the first drive part is positioned outside the first housing, the output shaft of the first drive part enters the first housing to be in power connection with the first gear train, and a rotation shaft of the first rotating brush enters the first housing to be in power connection with the first gear train.

[0064] In some embodiments, the second transmission mechanism further comprises: a second housing, in which the second gear train is positioned in the second housing, and a rotation shaft of the second rotating brush enters the second housing to be in power connection with the second gear train.

[0065] In a third aspect of this disclosure, a cleaning apparatus is proposed, and the cleaning apparatus comprises: a main apparatus body; and the rotating brush assembly mentioned above, the rotating brush assembly being connected to the main apparatus body. In a fourth aspect of this disclosure, a cleaning apparatus is proposed, and the cleaning apparatus comprises the rotating brush assembly mentioned above.

[0066] In a fifth aspect of this disclosure, a cleaning system is proposed. The cleaning system comprises: the rotating brush assembly mentioned above or the automatic cleaning device mentioned above; and a base station configured to provide maintenance for the automatic cleaning device. Brief description of the drawings

[0067] [Fig-1] The [Fig. 1] is a structural diagram of a first rotating brush and a second rotating brush according to a first embodiment of the present disclosure;

[0068] [Fig.2] The [Fig.2] is a first structural diagram of the first rotating brush according to the first embodiment of the present disclosure;

[0069] [Fig.3] The [Fig.3] is a second structural diagram of the first rotating brush according to the first embodiment of the present disclosure;

[0070] [Fig.4] Fig.4 is a first perspective view of a first implementation operation of a set of rotating brushes according to an embodiment of the present disclosure;

[0071] [Fig. 5] Fig. 5 is a second perspective view of the first. operation of a set of rotating brushes according to an embodiment of the present disclosure;

[0072] [Fig.6] Fig.6 is a first perspective view of a second setting operation of a set of rotating brushes according to an embodiment of the present disclosure;

[0073] [Fig.7] Fig.7 is a second perspective view of the second setting operation of a set of rotating brushes according to an embodiment of the present disclosure;

[0074] [Fig.8] Fig.8 is a perspective view of a first rotating brush, of a second rotating brush and a first blocking part according to an embodiment of the present disclosure;

[0075] [Fig.9] Fig.9 is a perspective view of a first blocking section according to a method of implementing this disclosure;

[0076] [Fig. 10] The [Fig. 10] is a perspective view of part of a first support according to a method of implementation of this disclosure;

[0077] [Fig. 11] The [Fig. 11] is a perspective view of part of a first support according to a method of implementation of this disclosure;

[0078] [Fig. 12] Fig. 12 is a cross-sectional view of a first support according to a mode of completion of this disclosure;

[0079] [Fig. 13] Fig. 13 is a perspective view of a first rotating brush according a method of implementing this disclosure;

[0080] [Fig. 14] The [Fig. 14] is a perspective view of a first support according to a mode of the implementation of this disclosure;

[0081] [Fig. 15] Fig. 15 is a perspective view of a second rotating brush according to a method of implementing this disclosure;

[0082] [Fig. 16] The [Fig. 16] is a perspective view of a second support according to a mode of the implementation of this disclosure;

[0083] [Fig. 17] The [Fig. 17] is a perspective view of a third implementation of a assembly of rotating brushes according to an embodiment of this disclosure;

[0084] [Fig. 18] Fig. 18 is a perspective view of a rotating brush in the third implementation of the rotating brush assembly according to an embodiment of the present disclosure;

[0085] [Fig. 19] The [Fig. 19] is a perspective view of a support in the third implementation of the rotating brush assembly according to an embodiment of the present disclosure;

[0086] [Fig. 20] Fig. 20 shows a perspective view of a rotating brush from an angle;

[0087] [Fig. 21] Fig. 21 represents a structural diagram of the rotating brush from a another angle;

[0088] [Fig. 22] Fig. 22 represents a structural diagram of a main brush body rotating from an angle;

[0089] [Fig. 23] Fig. 23 represents a structural diagram of the main brush body rotating from another angle;

[0090] [Fig.24] Fig.24 represents a structural diagram of a second part of blockage;

[0091] [Fig.25] Fig.25 represents a structural diagram of another second part of blockage;

[0092] [Fig. 26] Figure 26 represents a structural diagram of a set of brushes rotating from an angle (the main brush cover is not shown);

[0093] [Fig.27] Figure [Fig.27] represents a structural diagram of a set of brushes rotating from another angle (the second part of the blockage is not shown);

[0094] [Fig. 28] [Fig. 28] represents an enlarged structural diagram of part A of the [Fig.27] (the second part of the blockage is not shown);

[0095] [Fig.29] Figure [Fig.29] represents a structural diagram of the brush assembly rotating from another angle;

[0096] [Fig. 30] [Fig. 30] represents an enlarged structural diagram of part B of the [Fig.29];

[0097] [Fig. 31] Fig. 31 represents a structural diagram of the main brush body rotating again from another angle;

[0098] [Fig. 32] Figure 32 represents a structural diagram of a brush device rotating from an angle;

[0099] [Fig.33] Fig.33 represents a structural diagram of the rotating brush device from another angle;

[0100] [Fig.34] Fig.34 represents a structural diagram of the rotating brush device yet from another angle;

[0101] [Fig.35] Fig.35 represents a structural diagram of the rotating brush device yet from another angle;

[0102] [Fig.36] Fig.36 represents a structural diagram of a first mechanism of transmission;

[0103] [Fig.37] The [Fig.37] represents a structural diagram of a second transmission mechanism;

[0104] [Fig.38] Fig.38 represents a structural diagram of a set of rotating brushes, a transmission part and a drive part from an angle;

[0105] [Fig.39] The [Fig.39] represents a structural diagram of the assembly of rotating brushes, the transmission part and the drive part from another angle;

[0106] [Fig.40] Figure [Fig.40] represents a structural diagram of the brush assembly rotating, from the transmission part and the drive part from yet another angle; and

[0107] [Fig.41] Fig.41 represents a structural diagram of a set of brushes rotating, of a transmission part, of a first drive part and of a second drive part from an angle.

[0108] Description of the reference signs: 11 - connecting end; 12 - end cap; 2 - blade; 3 - first group of bristles; 4 - first support; 41 - handle shaft; 42 - bearing; 5 - first rotating brush; 51 - first handle hole; 6 - second support; 7 - second rotating brush; 71 - second handle hole; 8 - first locking part; 81 - connecting segment; 82 - locking segment; 9 - main brush cover; 91 - dust collection hole; 100 - rotary brush; 200 - set of rotary brushes; 201 - main body of rotating brush; 202 - second locking part; 300 - bin body; 2011 - shaft rod; 2012 - blade; 2013 - end plate; 2021 - ring part; 2022 - second group of bristles; 2023 - groove; 31 - main brush holder; 32 - main brush cover; 33 - corresponding cavity; 34 - brush orifice; 111 - main shaft body; 112 - annular flange; 121 - extension part; 122 - main blade body; 302 - transmission part; 303 - drive part; 304 - mounting frame; 1011 - first rotating brush; 1012 - second rotating brush; 21 - first transmission mechanism; 22 - second transmission mechanism; 23 - transmission shaft; 331 - first drive section; 332 - second drive section; 211 - first gear train; 212 - first housing; 221 - second gear train; 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

[0109] In the descriptions in this disclosure, it shall be understood that the orientation or positional relationships indicated by terms such as "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "internal", "external", "clockwise" and "counterclockwise" are the orientation or positional relationships represented on the basis of the drawings, solely for the purpose of facilitating the description of this disclosure and simplifying its descriptions, but not to indicate or imply that the specified device or element is to be oriented, structured and operated in a specific way in a specific direction and therefore shall not be construed as limitations to this disclosure.

[0110] Furthermore, the terms "first" and "second" are intended for descriptive purposes only and shall not be construed as indicating or implying relative importance or implicitly indicating the number of technical features listed. Thus, the features defined by "first" and "second" may include one or more of the features explicitly or implicitly. In the descriptions in this disclosure, unless clearly and specifically defined, "a plurality of" means two or more.

[0111] In this disclosure, unless otherwise clearly specified and defined, terms such as "amount," "connected," "connection," and "fixed" shall be understood in their broadest sense; for example, "connection" may be a fixed connection, a detachable connection, or a bonded connection, or may be a mechanical connection or an electrical connection, or may be a direct connection or an indirect connection through intermediation or internal communication between two elements. A person skilled in the art may understand the specific meanings of the above terms in this disclosure under specific conditions.

[0112] The embodiments of this disclosure will be described below 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.

[0113] The existing sweeping robot usually has a single rotating brush, which has low stability in cleaning operations.

[0114] Nowadays, the cleaning device, such as the sweeping robot and the integrated sweeper and mop robot, is usually close to the ground to clean dust, Particles, hair, and similar debris are collected on the floor. However, when the rotating brush spins to clean, hair and other fibers become entangled in the brush and cannot be vacuumed up along with the dust. This not only impairs dust collection but also increases wear and tear on the rotating brush's drive mechanism, reducing the cleaning appliance's lifespan. Manually removing the hair from the rotating brush is necessary, negatively impacting the user experience.Furthermore, for a cantilever type rotary brush, since a blade on its end part usually has to extend in an axial direction, hair often gets tangled at the base of the rotary brush, even tangling on a drive shaft of the rotary brush, which increases wear and tear on the drive part of the rotary brush, reduces the life of the cleaning device and affects the user experience.

[0115] With reference to Figures 1 to 3, according to one embodiment of this disclosure, a set of rotating brushes is proposed. The set of rotating brushes comprises at least two rotating brushes. Each rotating 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 rotating brushes are arranged opposite each other, and a gap is arranged between the oppositely arranged free ends. By arranging the at least two rotating brushes, compared to arranging a single rotating brush, stability during cleaning is effectively improved. By arranging the gap between the oppositely arranged free ends, the situation in which the oppositely arranged rotating brushes interfere with each other or block debris is avoided.

[0116] The rotating brush comprises a shaft and a cleaning portion arranged on the shaft. The cleaning portion comprises a blade 2 and / or first groups of bristles 3, or the cleaning portion is a single unit formed by connecting the blade 2 and the first groups of bristles 3, in order to ensure a better cleaning effect.

[0117] The cleaning part may include only the blade 2 or only the first groups of hairs or both the blade 2 and the first groups of hairs 3. The blade 2 and the first groups of hairs 3 may be a two-part structure (i.e. the blade 2 and the first groups of hairs 3 are independent components separate from each other), or may be a combined component formed by joining the blade 2 and the first groups of hairs 3 as a whole.

[0118] The blade 2 is arranged in a detachable manner on the shaft rod, so that the blade 2 can be removed from and mounted on the shaft rod, which is convenient for replacing the blade 2. After the blade 2 has been damaged, the blade 2 can can be directly replaced without needing to replace the entire rotating brush, thus saving on operating costs.

[0119] A plurality of blades 2 can be arranged in a circumferential direction of the shaft stem and the first groups of hairs 3 are arranged between adjacent blades 2 in the circumferential direction of the shaft stem, so that a sweeping effect can be enhanced.

[0120] A plurality of first hair groups 3 is arranged between the adjacent blades 2 and the plurality of first hair groups 3 is arranged spirally in an axial direction of the tree stem.

[0121] The first group of bristles 3 comprises a fixed end and a movable end. The fixed end is connected to the shaft. The movable end extends in a direction opposite to the shaft and is inclined towards the free end of the rotating brush, so that debris is guided while being driven to move, and the debris can move towards the movable end in an extension direction of the first group of bristles 3 and then move towards the free end of the shaft to be sucked into a dust compartment, thus improving the sweeping effect.

[0122] The first group of hairs 3 extends in a straight line when not deformed by an external force, and the movable end of the first group of hairs 3 extends in the direction opposite to the shaft stem and is inclined towards the free end of the shaft stem as a whole.

[0123] Specifically, in this embodiment, there is an included angle of approximately 45° between the fixed end of the first group of hairs 3 and the outer wall of the tree stem.

[0124] In one example, the outer wall of the rotating brush can be elastically deformed.

[0125] The outer wall of the rotating brush is made of an elastic material, so that it can be elastically deformed.

[0126] In one example, the outer wall of the rotating brush is rigid.

[0127] It should be noted that “rigid” means that the outer wall of the rotating brush does not It will not deform or will be slightly deformed under normal working conditions, but this does not mean that the outer wall of the rotary brush cannot be deformed at all. Specifically, "the outer wall of the rotary brush is rigid" means that the rigidity of the outer wall is significant enough that the outer wall of the rotary brush will not deform under normal working conditions.

[0128] Specifically, in this embodiment, the end portion in the shaft rod is made of a flexible rubber material, and a friction force The surface area of ​​the soft rubber is important, which facilitates the disposal of hair or fur.

[0129] It should be understood that the part of the shaft stem different from the end part can be made of a hard rubber material.

[0130] The shaft and the blades 2 are formed as a single unit, so that the rotating brush has better structural strength. In the related art, in an anti-tangling rotating brush, the shaft and the blades 2 are usually assembled, and there is usually a gap between them during assembly. Hair cannot be separated from the rotating brush if it enters the gap. In this embodiment, the shaft and the blades 2 are formed as a single unit, so that the shaft and the blades 2 are prevented from forming a gap between them, the hair is prevented from entering the gap, and the anti-tangling effect is improved.

[0131] The shaft rod and the blades 2 can be formed as a single unit by injection molding of two materials, injection molding in the mold, liquid injection molding or hydroforming.

[0132] Specifically, in this embodiment, the shaft stem and the blades 2 are formed as a single unit by two-color injection molding or in-mold injection molding.

[0133] The shaft rod is made from PC, ABS or PA, or the shaft rod is made with 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.

[0134] The blades 2 are made from TPU or TPE or silica gel or rubber.

[0135] As a first implementation of this embodiment, the rotary brush includes the shaft rod and an end cap 12. The end cap 12 is arranged on the shaft rod to form the free end of the rotary brush, and the end surface of the end cap 12 is arranged obliquely.

[0136] By arranging the end cap 12 and adjusting its end surface to be inclined, the end surface is formed into an inclined surface. When hair becomes tangled at the end of the shaft, the hair slides along the inclined end surface as the hair progressively tightens and eventually exits the shaft, thus solving the problem of the shaft's end easily becoming tangled by hair. Furthermore, after leaving the shaft, the hair is easily discarded in conjunction with the rotation of the rotating brush by adjusting at least one end surface of the shaft to be inclined relative to to a central axis of the shaft. It is beneficial that the hair enters the dust compartment from a main brush bin, and that the user experience is improved.

[0137] The end surface of the end cap 12 is arranged obliquely with respect to the central axis of the shaft stem.

[0138] The shaft rod may have a cylindrical structure, and the shaft rod extends in a straight line. The end cap 12 covers the free end of the shaft rod.

[0139] The end cap 12 covers the free end of the shaft stem.

[0140] Specifically, the end surface of the end cap 12 is arranged obliquely with respect to the central axis of the shaft. That is to say, the end surface of the end cap 12 is neither parallel nor perpendicular to the central axis of the shaft. That is to say, there is an included angle, which is not 90 degrees, between the central axis of the shaft and the end surface.

[0141] 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 the hair can glide smoothly over the end surface.

[0142] The arc surface is a convex arc surface, that is to say an arc surface projecting outwards, instead of an arc surface concave inwards.

[0143] In one embodiment, the end surface arranged obliquely with respect to the central axis of the shaft is configured as a plane and the smooth sliding of the hair on the end surface can also be guaranteed.

[0144] The end surface is a plane. In a radial or axial direction of the shaft rod, the end surface is an inclined plane.

[0145] In one embodiment, the end surfaces of the end caps 12 arranged opposite the rotating brushes have the same direction of inclination, and the two rotating brushes arranged opposite rotate at the same speed and in the same direction.

[0146] The same direction of inclination of the end caps 12 arranged opposite the rotating brushes means that the end surfaces of the two end caps 12 are inclined in the same direction, so that the two end surfaces are approximately parallel.

[0147] In one embodiment, there is a difference in rotational speed between the two rotating brushes arranged opposite each other, which further improves the ability to remove hair tangles.

[0148] As shown in Figures 1, 4 and 5, in this embodiment, the rotating brush assembly comprises two rotating brushes, namely a first rotating brush 5 and a second rotating brush 7. The first rotating brush 5 and the second The rotating brushes 7 are arranged axially opposite to each other. The end cap 12 of the first rotating brush 5 is positioned at the free end of the shaft of the first rotating brush 5, i.e., the right end in [Fig. 1]. The end cap 12 of the second rotating brush 7 is positioned at the free end of the shaft of the second rotating brush 7, i.e., the left end.

[0149] The end cap 12 of the first rotating brush 5 and the end cap 12 of the second rotating brush 7 are both arranged obliquely with respect to the central axis of the shaft, which can enable both the first rotating brush 5 and the second rotating brush 7 to have a good ability to remove hair tangles and thus improve the user experience.

[0150] The first rotating brush 5 and the second rotating brush 7 are configured to have a difference in rotational speed between them, so that hair tangled on the first rotating brush 5 and the second rotating brush 7 can be more easily thrown away and thus enter the dust compartment. Specifically, by configuring the difference in rotational speed, it is possible for the first rotating brush 5 to pull the tangled hair onto the second rotating brush 7, or for the second rotating brush 7 to pull the tangled hair onto the first rotating brush 5, thus allowing the hair to be thrown away and enter the dust compartment.

[0151] As a second embodiment of this embodiment, the rotating brush assembly further includes a first blocking part 8 and at least a part of the first blocking part 8 is located between the rotating brushes arranged opposite each other.

[0152] By providing the first blocking part 8 and arranging at least a part of the first blocking part 8 between the rotating brushes arranged opposite each other, when the tangled hair on the rotating brushes rotates together with the rotating brushes, the hair can be blocked by hooks and change their direction of movement to move towards the dust collection orifice 91, so that the hair is sucked into the dust compartment by a blower, thus achieving the effect of removing the tangled hair on the rotating brushes.

[0153] As shown in Figures 6 to 8, in this second embodiment, the rotating brush assembly comprises two rotating brushes, namely a first rotating brush 5 and a second rotating brush 7. The first rotating brush 5 and the second rotating brush 7 are arranged axially opposite to each other. Specifically, the first rotating brush 5 and the second rotating brush 7 are arranged coaxially. At least a portion of the first portion of blockage 8 is located between the opposite end faces of the first rotating brush 5 and the second rotating brush 7.

[0154] As shown in Figures 6 and 7, the rotary brush assembly includes a rotary brush holder. The first locking portion 8 is arranged on an internal wall of the rotary brush holder, so that the first locking portion 8 can be fixed stably, and a portion of the first locking portion 8 can extend to a position between the opposite end surfaces of the first rotary brush 5 and the second rotary brush 7.

[0155] The rotating brush assembly includes the rotating brush bin. The rotating brush bin is arranged with a dust collection port 91 used to communicate with the dust compartment. The first blocking part 8 is arranged on an internal wall on one side of the rotating brush bin opposite the dust collection port 91, so that hair blocked by the first blocking part 8 can smoothly enter the dust compartment.

[0156] The first blocking part 8 and the dust collection orifice 91 are arranged substantially opposite each other along a radial direction of the rotating brush.

[0157] The dust collection port 91 is an opening in the main brush bin communicating with the dust compartment; that is, an opening in the main brush bin closest to the dust compartment. The flow area of ​​the dust collection port 91 is smaller than the flow area of ​​the dust inlet. Specifically, dust and debris are drawn into the main brush bin via the dust inlet and then enter the dust compartment via the dust collection port 91.

[0158] As shown in [Fig.9], the first blocking part 8 comprises a connecting segment 81 and a blocking segment 82. The connecting segment 81 is fixed to the inner wall of the rotating brush bin and the blocking segment 82 is fixed to the connecting segment 81. An extension direction of the blocking segment 82 is different from an extension direction of the connecting segment 81.

[0159] By providing the connecting segment 81, the first blocking part 8 can be stably fixed in the main brush cover 9. By configuring the extension direction of the blocking segment 82 to be different from the extension direction of the connecting segment 81, the connecting segment 81 can be allowed to reach a position between the rotating brushes arranged opposite each other, thus serving to block the hair.

[0160] The locking segment 82 extends in a position between the opposing rotating brushes in a direction perpendicular to the axial direction of the rotating brushes.

[0161] As shown in [Fig. 9], the connecting segment 81 is arranged with a curved surface to connect 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 circumferential direction of the rotating brush. The curvature of the curved surface of the connecting segment 81 is matched to the curvature of the curved inner wall of the main brush cover 9, thus achieving close contact and a connection, which can be specifically bonded.

[0162] As shown in [Fig.9], the locking segment 82 is connected to the connecting segment 81 to form substantially a hook-type structure, which can also be referred to as an L-shaped structure. The locking segment 82 extends in a direction perpendicular to the axial direction of the rotating brush and extends to a position between the opposing rotating brushes.

[0163] One end of the locking segment 82 opposite the connecting segment 81 extends towards the central axis of the rotating brushes.

[0164] The assembly of rotating brushes includes a support. The support includes a 4L mounting rod. The rotating brushes are mounted on the 4L mounting rod, so that the rotating brushes can rotate stably on the 4L mounting rod.

[0165] The stem 41 comprises an inner stem and an outer stem. The outer stem is fitted onto an outer peripheral side of the inner stem. The inner stem is provided 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 outer and inner stems, it is possible to ensure that the relative rotation between the inner and outer stems is more stable and that wear between the outer and inner stems is also reduced.

[0166] The outer rod and the frame body have a one-piece structure and a section of the inner rod rotates into the outer rod.

[0167] Specifically, one end of the inner rod is connected to a drive component, so that the drive component can cause the inner rod to rotate. A section of the inner rod opposite the drive component extends beyond the outer rod. A rubber core is fixedly fitted onto the section of the inner rod extending beyond the outer rod. The shaft rod of the rotating brush is fitted onto the rubber core and the outer rod. The rubber core and the shaft rod are fixedly connected in a circumferential direction, so that the rubber core can drive the shaft rod to rotate. That is to say, the drive component drives the internal rod to rotate, the internal rod drives the rubber core to rotate, and the rubber core drives the shaft rod to rotate.

[0168] The inner ring of the bearing 42 is fitted onto the outer peripheral wall of the inner rod and the outer ring of the bearing 42 is fixed onto the inner peripheral wall of the outer rod.

[0169] As shown in Figures 10 to 13, there are at least two bearings 42. The at least two bearings 42 are arranged in an axial direction of the inner rod, which can further ensure that the inner rod rotates stably inside the outer rod.

[0170] Specifically, the number of bearings 42 is two. One bearing 42 is arranged on the inner wall, at one end of the outer rod, and the other bearing 42 is arranged on the inner wall at the other end of the outer rod.

[0171] The bearings 42 are bearings containing oil 42 or ball bearings 42 or comprise a bearing containing oil 42 and a ball bearing 42 to ensure good rotational stability.

[0172] Specifically, in this embodiment, both bearings 42 are oil-filled bearings 42. The oil-filled bearing 42 has good wear resistance. The oil-filled bearing 42 is made of a powder metallurgy material and is available in various shapes to suit different design requirements. The two bearings 42 are the same size, which saves space, simplifies the assembly, and allows for a more stable and reliable transmission.

[0173] There are two supports, and the shanks 41 of the two supports are either identical or different. If the shanks 41 of the two supports are different, this allows for keying, which prevents assembly errors and ensures product performance.

[0174] The rotating brushes are arranged with mounting holes and are fitted onto the mounting shaft 41 via these holes. The mounting holes of the different rotating brushes may be identical or different. If the two mounting holes are different, a keying mechanism is in place, preventing assembly errors and ensuring product performance.

[0175] As shown in Figures 13 to 16, in this embodiment, the set of rotating brushes comprises two supports and two rotating brushes, i.e. a first support 4 and a second support 6, and a first rotating brush 5 and a second rotating brush 7. The first rotating brush 5 is assembled on the first support 4 and the second rotating brush 7 is assembled on the second support 6.

[0176] Specifically, the first rotating brush 5 is arranged with a first mounting hole 51 and is fitted onto the mounting shank 41 of the first support 4 by means of the first mounting hole 51. The cross-section of the first mounting hole 51 is adapted to the cross-section of the mounting shank 41 of the first support 4. The second rotating brush 7 is arranged with a second mounting hole 71 and is fitted onto the mounting shank 41 of the second support 6 by means of the second mounting hole 71. The cross-section of the second mounting hole 71 is adapted to the cross-section of the mounting shank 41 of the second support 6.The cross-section of the first mounting hole 51 is different from the cross-section of the second mounting hole 71, and the cross-section of the mounting rod 41 of the first support 4 is different from the cross-section of the mounting rod 41 of the second support 6.

[0177] Specifically, as shown in [Fig. 13], the cross-section of the first mounting hole 51 is plum-shaped, meaning that the first mounting hole 51 is a plum-shaped hole. As shown in [Fig. 14], the cross-section of the mounting shank 41 of the first support 4 is also plum-shaped, and its size and shape are adapted to that of the first mounting hole 51. After the mounting shank 41 of the first support 4 has been inserted into the first mounting hole 51, the mounting shank 41 of the first support 4 abuts against the plum-shaped structure of the first mounting hole 51 in a circumferential direction via its plum-shaped structure, thus causing the first rotating brush 5 to rotate.

[0178] Specifically, as shown in [Fig. 15], the cross-section of the second mounting hole 71 is rectangular, meaning that the second mounting hole 71 is a rectangular hole. As shown in [Fig. 16], the cross-section of the mounting rod 41 of the second support 6 is also rectangular, and its size and shape are adapted to those of the second mounting hole 71. After the mounting rod 41 of the second support 6 has been inserted into the second mounting hole 71, the mounting rod 41 of the second support 6 abuts against the rectangular structure of the second mounting hole 71 in a circumferential direction via its rectangular structure, thus causing the second rotating brush 7 to rotate.The cross-section of the first mounting hole 51 and the cross-section of the mounting shank 41 of the first support 4 are plum-shaped, and the cross-section of the second mounting hole 71 and the cross-section of the mounting shank 41 of the second support are rectangular. The cross-sections are of different shapes and sizes. so that the shank 41 of the first support 4 cannot be inserted into the second shank hole 71, and the shank 41 of the second support 6 cannot be inserted into the first shank hole 51, thus forming a keying effect.

[0179] As shown in Figures 17 to 19, as a third embodiment of this embodiment, the free ends of at least two rotating brushes are arranged obliquely towards the dust collection orifice 91, which can facilitate the bringing of dust, by the rotating brushes, into the dust collection orifice 91 and thus facilitate suction into the dust compartment, thereby improving the cleaning effect.

[0180] The opposite ends of the two opposing rotating brushes, i.e. the free ends of the two rotating brushes, are arranged obliquely towards the dust collection orifice 91.

[0181] The rotating brushes have a substantially cylindrical structure and the rotating brushes extend in a straight line along their own central axis.

[0182] The internal space of the main brush cover 9 is connected to the dust compartment via the dust collection port 91. The flow area of ​​the dust collection port 91 is relatively small. Therefore, the air velocity is high. By configuring the free end of the rotating brush to extend towards the dust collection port 91, dust can be drawn towards the dust collection port 91 by the rotation of the rotating brush, and then more easily vacuumed into the dust compartment.

[0183] The dust collection port 91 is arranged in a central position along the transverse direction of the main brush cover 9. The connecting end 11 of the rotating brush is located at one end of the main brush cover 9 and the free end of the rotating brush extends towards the dust collection port 91 which is located in the center of the main brush cover 9.

[0184] Specifically, the first rotating brush 5 is located on one side of the dust collection orifice 91. The second rotating brush 7 is located on a second side of the dust collection orifice 91. The free end of the first rotating brush 5 is oriented obliquely towards the dust collection orifice 91 and the free end of the second rotating brush 7 is oriented obliquely towards the dust collection orifice 91, so that the first rotating brush 5 and the second rotating brush 7 are arranged with an angle formed between them, and the dust can be driven, synchronously, to move towards the dust collection orifice 91 in two directions, thus improving the cleaning effect.

[0185] The first rotating brush 5 and the second rotating brush 7 are arranged substantially in a left-right symmetry.

[0186] The first side and the second side are the left and right sides of the dust collection orifice 91 respectively, which can be understood from the fact that the first side is the left side of the dust collection orifice 91 and the second side is the right side of the dust collection orifice 91.

[0187] The free end of the first rotating brush 5 and the free end of the second rotating brush 7 are opposite ends in the left-right direction.

[0188] One end of the support is connected to the drive device, and the other end of the support is oriented obliquely towards the dust collection port 91.

[0189] The rotating brush can rotate on the support with its own central axis as the center of rotation.

[0190] Specifically, the first rotating brush 5 is arranged, in a rotational manner, on the first support 4, and the second rotating brush 7 is arranged, in a rotational manner, 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 oriented obliquely towards the dust collection opening 91, so that the first rotating brush 5 can rotate on the first support 4 with its own axis of rotation as the center of rotation and the second rotating brush 7 can rotate on the second support 6 with its own central axis as the center of rotation, thus ensuring that the first rotating brush 5 and the second rotating brush 7 have good rotational stability.

[0191] The first rotating brush 5 is mounted, in a rotational manner, on the mounting rod 41 of the first support 4. The first rotating brush 5, the mounting rod 41 of the first support 4 and the drive part of the drive device connected directly to the mounting rod 41 are arranged, coaxially, along an axis extending towards the dust collection orifice 91. That is to say, the mounting rod 41 of the first support 4 is arranged, obliquely, with respect to the side wall of the rotating brush cover.

[0192] The second rotating brush 7 is mounted, in a rotational manner, on the mounting rod 41 of the second support 6. The second rotating brush 7, the mounting rod 41 of the second support 6 and the drive part of the drive device directly connected to the mounting rod 41 are arranged, coaxially, along an axis extending towards the dust collection orifice 91. That is to say, the mounting rod 41 of the second support 6 is arranged, obliquely, with respect to a side wall of the rotating brush cover.

[0193] The main brush cover 9 is arranged with a dust inlet and the opening angle of the dust inlet is adapted to the angle formed between the two rotating brushes.

[0194] The two rotating brushes with their free ends arranged opposite each other form an obtuse angle between them, meaning that the angle formed between the first rotating brush 5 and the second rotating brush 7 is an obtuse angle. The dust inlet is thus formed in an obtuse angle structure.

[0195] According to the embodiments of this disclosure, an automatic cleaning device is proposed comprising a set of rotating brushes as described above.

[0196] According to the embodiments of this disclosure, a cleaning system is proposed comprising a set of rotating brushes as described above or an automatic cleaning device as described above. The cleaning system further comprises a base station. The base station is configured to provide maintenance for the automatic cleaning device.

[0197] The common rotary brush 100 in the related art is generally connected to the drive device in the bin body 300 by a rotating shaft. When the rotary brush 100 interferes with hair and other thread-like objects characterized by their relatively long length and soft material, the long, flexible hair can spontaneously form many different configurations in its natural state and tend to become entangled after interfering with the rotary brush 100, thus facilitating entanglement with the rotary brush 100 and the rotating shaft of the rotary brush 100.Thus, after prolonged use, a large amount of hair tangling on the rotating brush 100 can cause deformation of the rotating brush 10 and further increase wear and tear on the drive mechanism of the rotating brush 100, thereby reducing the lifespan of the cleaning appliance. Additionally, hair tangling on the rotating shaft is not easily drawn into the air duct and can affect cleaning efficiency. Therefore, it is necessary to manually clean the hair from the rotating brush 100 and the rotating shaft at regular intervals, which is time-consuming and laborious. Hair entering the bin 300 causes pollution inside the bin and can even damage internal components, thus affecting the appliance's lifespan.

[0198] As shown in Figures 20 to 31, a rotary brush 100 is proposed for use in a cleaning device. The rotary brush 100 comprises a main rotary brush body 201 and a second locking portion 202. The main rotary brush body 201 comprises a shaft 2011 and a blade 2012 arranged on an outer peripheral side of the shaft 2011. The second locking portion 202 is arranged at an end portion of the main rotary brush body 201, and a portion of the blade 2012 is arranged obliquely towards an axial direction of the shaft rod 2011 and inserted into the second locking part 202.

[0199] The rotating brush 100 is arranged at one end of the rotating brush 100 near the bin body 300 by the second locking part 202 in an annular shape. A portion of the blade 2012 is angled towards 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. The hair is entangled on the plurality of blades 2012 to form a hair ring in a substantially circular shape. The external diameter of the second locking part 202 is larger than the external diameter of the plurality of blades 2012 where the blades are connected with the second locking part 202. When the hair on the blades 2012 moves axially towards the end of the main body of the rotating brush 201, the hair is blocked by the second locking part 202 and cannot become entangled on the shaft connected to the rotating brush 100.By limiting the amount of hair on the 2012 blade with its larger outer diameter, the hair has difficulty forming a clump and can thus be more effectively drawn into the air duct. This improves the cleaning effect, prevents hair from tangling on the shaft after being detached from the 2012 blade, reduces the possibility of the 100 rotating brush being deformed by hair entanglement, and reduces wear and tear on the drive mechanism. Furthermore, the second 202 blocking element is positioned at one end of the 100 rotating brush near the bin body. This prevents hair from entering the bin body, extending the appliance's lifespan and improving the user experience.

[0200] In one embodiment, as shown in Figures 20 to 23, the blade 2012 comprises a main blade body 122 and an extension portion 121. The extension portion 121 is arranged 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 positioned on the inner side of the outer edge of the main blade body 121 in a radial direction of the main rotating brush body 201, and the extension portion 121 is positioned on the inner side of the outer edge of the second locking portion 202.

[0201] It should be noted that a base portion of the blade 2012 is narrowed and inserted into the second locking portion 202. The base portion of the blade 2012 is the extension portion 121. The extension portion 121 and the main blade body 122 can be a single unit. The external diameter of the second locking portion 202 is larger than the external diameter of the extension portion 121. During the axial movement of the hair on the blade 2012 along the main body of the rotating brush 201, the hair moving towards the position of the extension portion 121 are slightly stretched until they are in contact with the second blocking part 202. Further movement of the hair by the second blocking part 202 towards the end part is prevented and they are confined in the position of the extension part 121.The diameter of the tangled hair ring in the extension part position 121 is slightly smaller than the diameter of the tangled hair ring on the main blade body 122, and the tangled hair ring in the extension part position 121 has a still larger diameter, so that the hair cannot tangle itself, which greatly reduces the situation of firmly tangled hair on the rotating brush 100 and reduces the situation of deformation of the rotating brush 100, such as caused by firmly tangled hair on the rotating brush 100, thus reducing the frequency of the situation of manually cleaning hair from the rotating brush 100 and improving user satisfaction.

[0202] A radial height of at least one part of the extension part 121 is less than a radial height of the second blocking part 202.

[0203] In one embodiment, as shown in Figures 20 to 23, there is a plurality of blades 2012. The plurality of blades 2012 is arranged in a circumferential direction of the shaft rod 2011. A radial distance between the extension part 121 and the shaft rod 2011 is less than a radial distance between the outer edge of the main blade body 122 and the shaft rod 2011.

[0204] It should be noted that the plurality of blades 2012 is provided on the outer peripheral side of the shaft rod 2011 and arranged in a circumferential direction along the shaft rod 2011. The drive device causes the shaft rod 2011 and the blades 2012 to rotate via the rotating shaft, in order to carry out the sweeping of the surface to be cleaned.

[0205] Specifically, the blade 2012 can be provided along the axial direction of the shaft rod 2011 and can also extend, spirally, along the axial direction of the shaft rod 2011.

[0206] In one embodiment, as shown in Figures 20 to 23, at least a portion of the outer edge of the extension part 121 is a guide segment, and the guide segment is arranged between the second locking part 202 and the main blade body 122.

[0207] It should be noted that the portion of the extension part 121 inserted into the second locking part 202 is smoothly connected to the main blade body 122 by the guide segment. That is to say, the portion of the blade 2012 between the main blade body 122 and the portion of the extension part 121 inserted into the second locking part 202 has no obvious gap or break, and the transition between them is smooth. ensuring that the hair can move smoothly along the blade 2012 until it is stopped by the second blocking part 202.

[0208] The guide segment comprises an oblique segment and / or an arc segment.

[0209] In one embodiment, this embodiment is illustrated by the segment of The guide is an oblique segment. At least a portion of the oblique segment is located between the second blocking part 202 and the main blade body 122. The oblique segment extends from one end of the main blade body 122 to the second blocking part 202 and is inserted into the second blocking part 202. The oblique segment is oriented obliquely towards the shaft shank 2011, so that the hair can come into contact with the second blocking part 202 when the hair moves from the main blade body 122 and reaches the position of the oblique segment, and the second blocking part 202 prevents the hair, in the position of the oblique segment, from moving axially along the shaft shank 2011.

[0210] In one embodiment, this embodiment is illustrated by the guide segment, which is an arc segment. At least a portion of the arc segment is located between the second blocking part 202 and the main blade body 122. The arc segment extends from one end of the main blade body 122 to the second blocking part 202 and is inserted into the second blocking part 202. The arc segment is oriented obliquely towards the shaft shank 2011, so that the hair can be in contact with the second blocking part 202 when the hair moves from the main blade body 122 and reaches the position of the arc segment, and the second blocking part 202 prevents the hair, in the position of the arc segment, from moving axially along the shaft shank 2011.

[0211] In one embodiment, this embodiment is illustrated by the guide segment comprising an arc segment and an oblique segment. At least a portion of the oblique segment or at least a portion 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 an end of the main blade body 122 to 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 oriented obliquely towards the shaft 2011, so that the hair can be in contact with the second blocking part 202 when the hair moves from the main blade body 122 and reaches the position of at least one of the arc segment and the oblique segment, and the second blocking part 202 prevents the hair, in the position of at least one of the arc segment and the oblique segment, from moving axially along the shaft 2011.

[0212] The arc segment may have a concave arc shape, that is, an arc shape that is concave inwards.

[0213] The arc segment can also have a convex arc shape, that is, an arc shape that is convex outwards. When the arc segment has a convex arc shape, it can be made to lie completely between the second blocking part 202 and the main blade body 122, and a transition segment can be provided between the arc segment and the second blocking part 202. The transition segment can be a straight segment, an oblique segment, and an arc segment, etc., to prevent hair entanglement in the cracks between the convex arc force and the second blocking part 202.

[0214] In one embodiment, as shown in Figures 20 to 23, the ratio of the minimum radial distance between the guide segment and the shaft rod 2011 to the radial distance between the outer edge of the main blade body 122 and the shaft rod 2011 is in a range of 0.5 to 0.9.

[0215] It should be noted that the base part of the blade 2012 is narrowed to form the extension part 121 and is inserted into the second blocking part 202. During the axial movement of the hair on the blade 2012 along the main body of the rotating brush 201, when the hair moves into the position of the extension part 121, the hair ring is slightly stretched until it comes into contact with the second blocking part 202. In order to prevent the diameter of the hair ring on one side of the second blocking part 202 from being too small, which could cause the hair itself to become tangled on the blade 2012, there are certain requirements regarding the distance between the outer edge of the extension part 121 and the shaft 2011.Specifically, the ratio of a first distance to a second distance can be in a range of 0.5 to 0.9, where the first distance is a distance between the shaft rod 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 part 121, and the second distance is a distance between the outer edge of the main blade body 122 and the shaft rod 2011.In this way, on the one hand, the hair ring formed by the hairs which reach the position of the extension part 121, can be slightly stretched to be stopped while being in contact with the second blocking element 202; on the other hand, the hair ring can be prevented from tangling with each other in several layers due to its small diameter which can affect the suction of the hair in the air duct, and the hair ring with a slightly reduced diameter can still be regularly sucked into the air duct, thus ensuring cleaning efficiency.

[0216] In one embodiment, as shown in Figures 22 and 23, the shaft 2011 is provided with an end plate 2013. The plurality of blades 2012 is integrated onto the end plate 2013. The blades 2012 extend out of one side of the end plate 2013 opposite the main blade body 122. The second part The locking mechanism 202 is positioned on one side of the end plate 2013 opposite the main blade body 122.

[0217] The shaft rod 2011 is provided with an annular end plate 2013. The end plate 2013 is fitted onto the shaft rod 2011. The end plate 2013 is connected to the plurality of main blade bodies 122. The base portion of the blade 2012 is narrowed 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 positioned within the second locking portion 202 or may pass through the second locking portion 202.

[0218] In one embodiment, as shown in Figures 22 and 23, the shaft rod 2011 comprises a main shaft rod body 111 and an annular flange 112. The annular flange 112 is provided at an end portion of the main shaft rod body 111, and the second locking portion 202 is fitted onto the annular flange 112.

[0219] The main body of shaft rod 111 may have a cylindrical structure and is arranged along a straight line.

[0220] The annular flange 112 is provided at an end portion of the main shaft body 111, the second locking portion 202 is fitted onto the annular flange 112. The annular flange 112 and the main shaft body 111 can be a single-piece structure or a two-part structure, and the end plate 2013 can be positioned on one side of the annular flange 112.

[0221] The connection between the second locking part 202 and the shaft rod 2011 can be made by a connection such as gluing, fitting, a screw, a snap-fit, a mortise and tenon, magnetic suction, etc. as long as the second locking part 202 can rotate with the shaft rod 2011.

[0222] In one embodiment, as shown in [Fig.24], the second blocking part 202 comprises second groups of hairs 2022 arranged in a circumferential direction of the shaft 2011, and the extension part 121 is inserted into the interstices between the second groups of hairs 2022.

[0223] The hairs on the blade 2012 are stopped by the second blocking part 202 composed of a number of second groups of hairs 2022. Small gaps are formed between the second groups of hairs 2022 and the extension part 121 can be inserted into the gaps between the second groups of hairs 2022.

[0224] One end of the second group of hairs 2022 is finally connected with the shaft 2011; and the other end of the second group of hairs 202 is in contact with an internal wall of the tank body, thus stopping the movement of the hairs towards the inside of the tank body.

[0225] Furthermore, as shown in [Fig.24], the second locking part 202 may further comprise an annular part 2021 which is fitted onto the shaft shank 2011. The second group of bristles 2022 comprises a fixed end connected with the annular part 2021 and a free end extending opposite the shaft shank 2011.

[0226] When not deformed by an external force, the second group of hairs 2022 extends in a straight line, the fixed end of the second group of hairs 2022 is connected with the annular part 2021, and the annular part 2021 is connected with the shaft 2011. The free end of the second group of hairs 2022 extends along the radial direction of the shaft 2011 opposite the shaft 2011, complicating the fact that the hairs become entangled on the second group of hairs 2022.

[0227] The annular part 2021 can be connected with the annular flange 112. The free end of the second group of hairs 2022 is in contact with the inner wall of the bin body 300, filling the gap between the shaft 2011 and the bin body 300, so that the hair cannot enter the bin body 300.

[0228] The second group of hairs 2022 is elastic, and the second group of hairs 2022 can be deformed during contact with the inner wall of the tank body 300, so that the free end of the second group of hairs 2022 is always in close contact with the inner wall of the tank body 300.

[0229] The second group of hairs 2022 can be made with at least one of a rubber material, a plastic fiber material, an inorganic fiber material, a plant fiber material and an animal fiber material.

[0230] The surface of the second group of hairs 2022 is smooth and free of burrs in order to reduce friction with the hair, so that the hair can slide relative to the second blocking part 202, thus preventing the hair from tangling on the second group of hairs 2022.

[0231] In one embodiment, as shown in [Fig.25], the second locking part 202 comprises an annular part 2021. The annular part 2021 is fitted onto the shaft rod 2011 and the annular part 2021 is provided with a groove 2023 into which the extension part 121 is to be inserted.

[0232] The second locking portion 202 can be the annular portion 2021, and the extension portion 121 is inserted into the groove 2023 provided in the annular portion 2021. The groove 2023 can 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 fit with a small clearance or a tight fit, thus preventing hair from entering the bin body 300 through the groove 2023.

[0233] The inner wall of the annular part 2021 is finally connected with the shaft 2011, and the outer wall of the annular part 2021 extends opposite the shaft 2011, thus stopping the movement of hair towards the inside of the tray body.

[0234] The annular part 2021 can be connected with the annular flange 112, and the outer wall of the annular part 2021 is in contact with the inner wall of the bin body, filling the gap between the shaft rod 2011 and the bin body 300, so that hair cannot enter the bin body 300.

[0235] The annular part 2021 is elastic, or the outer wall of the annular part 2021 is elastic. The annular part 2021 can be deformed during contact with the inner wall of the container body 300, so that the outer wall of the annular part 2021 is always in close contact with the inner wall of the container body 300.

[0236] The second blocking part 202 is made of felt material. Felt is mainly composed of animal hair or fibers, which has better elasticity, sealing and abrasion resistance and can also provide a vibration damping effect.

[0237] In one embodiment, the second locking part 202 and the shaft rod 2011 can be molded together or can have a two-part structure.

[0238] In one embodiment, a detachable structure or a fixed connecting structure can be configured between the second locking part 202 and the shaft rod 2011.

[0239] In one embodiment, as shown in Figures 26 to 30, the cleaning device includes a tub body 300 to house the rotating brush 100. The second blocking part 202 is positioned between the shaft rod 2011 and the tub body 300 and fills a gap between the shaft rod 2011 and the tub body 300, thus stopping the movement of hair towards the gap.

[0240] In one embodiment, as shown in Figures 27 to 30, there is no contact between the blades 12 and the container body 300 and there is interference between the blocking part 202 and the container body 300.

[0241] It should be noted that the extension part 121 has a fit with a little play with the bin body 300 and the second locking part 202 has a tight fit with the inner wall of the bin body 300, so that the second locking part 202 is always in close contact with the inner wall of the bin body 300, when the second locking part 202 rotates together with the main rotating brush body 201, thus ensuring the sealing effect.

[0242] In one embodiment, as shown in [Fig. 30], at least a portion of the second locking part 202 is made of plastic and during the relative movement of the second part of the 202 block and the 300 tank body, the second part of the 202 block is always in close contact with the 300 tank body.

[0243] As shown in Figures 26 to 31, a set of rotary brushes 200 is provided, comprising any one of the rotary brushes 100 described above. The rotary brushes 100 are configured to be connected to a drive device so as to cause the drive device to rotate the rotary brushes 100.

[0244] The assembly of rotary brushes 200 includes a bin body 300. The rotary brush 100 is provided in the bin body 300. The drive device may be provided in the bin body 300. The drive device is in power connection with the rotary brush 100 via a rotation shaft, driving the rotary brush 100 to rotate and interact with the surface to be cleaned.

[0245] The 300 tank body provides good protection for the drive device and the transmission device, reduces contamination in the 300 tank body and is favorable to extending service life and reliability.

[0246] In one embodiment, as shown in Figures 27 to 31, the bin body 300 comprises a main brush bin 31 and a main brush cover 32. The main brush bin 31 and the main brush cover 32 enclose a cavity housing the rotating brush 100 and the main brush bin 31 and the main brush cover 32 enclose a corresponding cavity 33 housing the second locking part 202.

[0247] Specifically, the bin body 300 may include a main brush bin 31 and a main brush cover 32 removably connected to each other, which facilitates assembly, disassembly, and maintenance. The brush bin body and the main cover 32 may be removably connected by at least one screw, a snap-fit ​​structure, a mortise and tenon structure, and a magnetic suction structure.

[0248] As shown in Figures 28 to 30, the bin body 300 is provided with a main brush orifice 34 and a corresponding cavity 33. The blade 2012 passes through the main brush orifice 34 to interact with the surface to be cleaned. The corresponding cavity 33 is located on an external peripheral side of the second blocking part 202 and interacts with the second blocking part 202.

[0249] The main brush container 31 and the main brush cover 32 enclose a cavity housing the rotating brush 100. The cavity has an opening, namely the main brush orifice 34. Part of the rotating brush 100 passes through the main brush orifice 34 to come into contact with the surface to be cleaned.

[0250] The main brush holder 31 and the main brush cover 32 enclose the corresponding cavity 33 housing the second locking part 202. The cavity The corresponding cavity 33 is specifically formed by enclosing the shaft 2011 and the container body 300. The shape of the corresponding cavity 33 is adapted to the shape of the second blocking part 202. The corresponding cavity 33 is formed as an annular cavity which is slightly smaller than the second blocking part 202 and the outer edge of the second blocking part 202 is always in close contact with the corresponding cavity 33.

[0251] The maximum distance from the outer edge of the main blade body 122 to the axis of the shaft rod 2011 is greater than the maximum distance from the outer wall of the main brush cover 32 to the axis of the shaft rod 2011, so that the main blade body 122 can pass through the main brush orifice 34 and interfere with the surface to be cleaned.

[0252] The number of 100 rotating brushes can be one, two, three, four and other numbers; and the material, size and number of 100 rotating brushes can be configured according to specific requirements to satisfy different cleaning needs.

[0253] In one embodiment, the set of rotating brushes 200 includes at least one rotating brush 100. The two ends of the rotating brush 100 are connected with rotating shafts, and two ends of the rotating brush 100 are provided with the second locking parts 202.

[0254] When the rotating brush 100 is a full double-arm rotating brush 100, one end of the rotating brush 100 is connected to the drive unit via a rotating shaft, and the other end of the rotating brush 100 is connected, in a rotational manner, to the bin body 300 via another rotating shaft. When the rotating brush 100 rotates and interacts with the surface to be cleaned, hair on the blades 2012 can move towards each end of the rotating brush 100. Taking this into consideration, a second blocking part 202 can be provided at both ends of the rotating brush 100 to prevent moving hair from becoming entangled around the rotating shaft in both directions.

[0255] In one embodiment, the assembly of rotating brushes 200 includes at least one rotating brush 100. One end of the rotating brush 100 is connected with a rotating shaft, and the second locking part 202 is provided at one end of the rotating brush 100 near the drive device.

[0256] When the rotary brush 100 is a cantilevered rotary brush 100, one end of the rotary brush 100 is in power connection with the drive device via a rotating shaft, and the other end of the rotary brush 100 is cantilevered. When the rotary brush 100 rotates and interacts with the surface to be cleaned, the hair on the blade 2012 can move towards each end of the rotary brush 100. When the hair on the blade 2012 moves away from the shaft of During rotation, hair can be drawn into the air duct or detached from the rotating brush 100 during the movement process. With this in mind, a second locking device 202 can be positioned at one end of the rotating brush 100, near the rotating shaft, to prevent moving hair from becoming entangled around it.

[0257] When the number of cantilevered rotating brushes 100 is two or more, at least two rotating brushes 100 are arranged opposite each other along their respective axial directions. The at least two rotating brushes 100, which rotate at different speeds, allow the hair to be pulled between them, preventing it from clumping and enabling it to be more effectively drawn into the air duct, thus improving the cleaning effect.Furthermore, hair can be easily thrown away or even broken under the traction of the 100 rotating brushes, which greatly reduces the situation in which hair becomes tangled on the 100 rotating brushes, reduces the situation of deformation of the 100 rotating brushes, such as caused by hair tangling on the 100 rotating brushes, and reduces wear and tear on the drive parts of the 100 rotating brushes, thus extending the life of the cleaning device, reducing the frequency of the situation of manually cleaning hair from the 100 rotating brush and improving user satisfaction.

[0258] A cleaning system is proposed which includes a cleaning unit and a base station. The cleaning unit includes any one of the 100 rotary brushes described above, or includes any one of the 200 rotary brush assemblies described above, and the base station provides maintenance for the cleaning unit.

[0259] The 100 rotary brush is applied to a cleaning system. The cleaning system comprises a cleaning unit and a base station. The cleaning unit may be an automatic moving robot cleaner or another type of robot cleaner that meets the requirements. The automatic moving robot cleaner is a device that automatically cleans a designated area without user intervention. Specifically, the cleaning unit may include a sweeping robot, an integrated sweeping and mopping robot, and similar devices.

[0260] The cleaning device includes a rotary brush 100 or a set of rotary brushes 200. The rotary brush 100 or the set of rotary brushes 200 is provided below the cleaning device and can carry out the cleaning treatment for the dirt on the surface to be cleaned, and the rotary brush 100 can be a dry cleaning component.

[0261] As shown in [Fig. 32], a rotary brush device is proposed, which is applied in a cleaning apparatus. The rotary brush device comprises a set of rotary brushes 200, a transmission section 302, and a drive section 303. The set of rotary brushes 200 comprises at least one first rotary brush 1011 and a second rotary brush 1012. The transmission section 302 comprises a first transmission mechanism 21 and a second transmission mechanism 22. The first transmission mechanism 21 is connected to the first rotary brush 1011, and the second transmission mechanism 22 is connected to the second rotary brush 1012.The drive part 303 drives the first transmission mechanism 21 and the second transmission mechanism 22 to drive the first rotating brush 1011 and the second rotating brush 1012 to rotate, and the drive part 303 drives the second transmission mechanism 22 to drive the second rotating brush 1012 to rotate. There is a difference in rotational speed between the first rotating brush 1011 and the second rotating brush 1012.

[0262] The embodiments of this disclosure propose a cleaning apparatus. The cleaning apparatus comprises a main body and a cleaning system. The cleaning system includes a rotating brush device, and the rotating brush device comprises a set of 200 rotating brushes. The set of 200 rotating brushes is arranged below the main body and can perform the cleaning treatment on the surface to be cleaned. The rotating brush device may be a dry cleaning assembly.

[0263] The rotary brush commonly used in related arts is generally an assembly. When the rotary brush comes into contact with hair and other thread-like objects characterized by their considerable length and soft material, long, flexible hair can spontaneously form many different configurations in its natural state and tends to become entangled after interacting with the rotary brush. This facilitates entanglement on the rotary brush and its rotating shaft. Thus, after prolonged operation, a large amount of hair entangled on the rotary brush can cause deformation of the brush and further increase wear and tear on the drive mechanism, thereby reducing the service life of the cleaning device.Furthermore, hair can easily become tangled in clumps after removing the rotating brush and therefore not be easily drawn into the air duct, affecting cleaning efficiency. Thus, it is necessary to manually clean the hair from the rotating brush at regular intervals, which is time-consuming and laborious.

[0264] Taking this into consideration, a rotary brush device is proposed. The rotary brush device comprises a set of 200 rotary brushes, a transmission part 302 and a drive part 303. The drive part 303 drives a first rotating brush 1011 to rotate via a first transmission mechanism 21 and the drive part 303 drives a second rotating brush 1012 to rotate via a second transmission mechanism 22. The two rotating brushes rotate at different speeds.

[0265] It should be noted that the rotating brush device comprises at least two rotating brushes. The at least two rotating brushes, which rotate at different speeds, can allow the hair to be pulled between the rotating brushes, so that the hair cannot form clumps and can be better drawn into the air duct, thus improving the cleaning effect.Furthermore, hair can be easily broken under the traction of the rotating brushes, which greatly reduces the situation in which hair becomes tangled on the rotating brushes, reduces the situation of deformation of the rotating brushes, such as caused by hair tangling on the rotating brushes, and reduces the wear and tear of the drive parts of the rotating brushes, thus extending the life of the cleaning device, reducing the frequency of the situation of manually cleaning hair from the rotating brush, and improving user satisfaction.

[0266] The number of rotating brushes can be two, three, four, or other numbers. Two adjacent rotating brushes can have different rotation speeds to allow hair to be pulled between the brushes rotating at different speeds. The material, size, and number of rotating brushes can be configured according to specific requirements to meet different cleaning needs.

[0267] It should be noted that the 200 rotating brush assembly comprises a first rotating brush 1011 and a second rotating brush 1012. The first rotating brush 1011 rotates at a first speed and the second rotating brush 1012 rotates at a second speed. The first speed is different from the second speed. For this reason, when the first rotating brush 1011 and the second rotating brush 1012 come into contact with the hair, the difference in rotational speed between the two brushes causes the hair to be stretched or pulled taut, making it more difficult for clumps to form. This makes it harder for the hair to become tangled on the rotating brushes and more likely to be drawn into the air duct.

[0268] It should be noted that the hair which is pulled is likely to break when the two rotating brushes rotate at different speeds, and the length of the hair is shortened after breaking, so that it is less likely to become tangled on the rotating brushes and more likely to be sucked into the air duct.

[0269] In a specific embodiment, when the high-speed rotary brush initially interacts with thread-like objects, and the slow-speed rotary brush subsequently interacts with them, the thread-like objects are pulled between the two rotary brushes. This causes the objects to move towards the gap between the two rotary brushes, making them less likely to become entangled on the rotary brushes and more likely to be drawn into the air duct. Conversely, when the slow-speed rotary brush initially interacts with the thread-like objects, and the high-speed rotary brush subsequently interacts with them, the thread-like objects will be fluffier between the two rotary brushes, making them less likely to become entangled on the rotary brushes and more likely to be drawn into the air duct.

[0270] In one embodiment, as shown in [Fig.32], the rotating brush device further comprises a mounting frame 304. The drive part 303 and the transmission part 302 are provided on the mounting frame 304 and the mounting frame 304 is connected with the main body of the cleaning device.

[0271] The rotating brush assembly 200 is provided on the main body of the cleaning appliance via the mounting frame 304. The rotating brush assembly 200, which has some interference with the surface to be cleaned, sweeps and rolls the dirt on the floor towards the front of the suction opening between the rotating brush assembly 200 and the dust compartment, so that the dirt is sucked into the air duct and enters the dust compartment to perform dry cleaning.

[0272] As shown in Figures 32 to 35, the mounting frame 304 may also include a connecting rod. The mounting frame 304 is connected to the main body of the device via the connecting rod. An adaptive floating design can be adopted. The rotating brush assembly 200 can oscillate freely downwards under the action of its own weight, so that the rotating brush assembly 200 can always maintain contact with the surface to be cleaned under a certain pressure. When the surface to be cleaned rises and falls, the rotating brush assembly 200 can always remain in close contact with the ground and float with the surface to be cleaned.

[0273] In one embodiment, as shown in [Fig.33], the first rotating brush 1011 and the second rotating brush 1012 can be arranged coaxially, so that the first rotating brush 1011 and the second rotating brush 1012 can interfere with the same wire-like object and pull that same wire-like object.

[0274] In one embodiment, as shown in [Fig.33], there may be interference between the first rotating brush 1011 and the second rotating brush 1012. Or there may be no contact between the first rotating brush 1011 and the second rotating brush 1012.

[0275] In this embodiment, for example, there is no contact between the first rotating brush 1011 and the second rotating brush 1012. Thread-like objects are stretched or even broken by the traction of the rotating brushes at different speeds, and the rotating brushes at different speeds are more likely to expel the thread-like objects, causing them to be drawn into the air duct. The first rotating brush 1011 and the second rotating brush 1012 are separated from each other, so that the thread-like object cannot become entangled between the first rotating brush 1011 and the second rotating brush 1012. Furthermore, a gap is formed between the two rotating brushes, and the first rotating brush 1011 and the second rotating brush have a small clearance fit.The clearance is located in the air inlet position of the air duct to prevent excessive clearance which would cause air leakage, and the small clearance ensures the gas flow between the first rotating brush 1011 and the second rotating brush 1012, in order to facilitate greater suction of the thread-like object into the air duct.

[0276] In one embodiment, the ratio of the rotational speed of the first rotating brush 1011 to the rotational speed of the second rotating brush 1012 is in a range of 0.8 to 0.99.

[0277] It should be noted that there is a difference in rotational speed between the first rotating brush 1011 and the second rotating brush 1012 for pulling thread-like objects when they are in contact with the thread-like objects. In a specific embodiment, the drive portion 303 drives the rotating brush to rotate via the transmission portion 302 in order to at least interfere with the impurities on the surface to be cleaned, and also to interfere with the surface to be cleaned. If the difference in rotational speed between the two brushes is too great, the difference in friction between the rotating brush and the surface to be cleaned is significant, which can increase the load on the drive portion 303.Taking this into consideration, it is appropriate that the difference in rotational speeds between the first rotating brush 1011 and the second rotating brush 1012 can form the traction on threadlike objects such as hair, which means that the ratio of the rotational speed of the first rotating brush 1011 to the rotational speed of the second rotating brush 1012 can be in a range of 0.8 to 0.99.

[0278] In one embodiment, as shown in Figures 34 and 35, the drive part 303 further comprises a first drive part 331 and a transmission shaft 23. The output shaft of the first drive part 331 is in power connection with the first transmission mechanism 21, and the first transmission mechanism 21 is in power connection with 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.

[0279] In the above embodiment, in the case where the first transmission mechanism 21 and the second transmission mechanism 22 share a common drive part, the drive part 303 comprises the first drive part 331 and the drive shaft 23. The first transmission mechanism 21 and the second transmission mechanism 22 are in power communication via the drive shaft 23 and driven by the first drive part 331, which means that the output shaft of the first drive part 331 is in power connection with the first transmission mechanism 21 in order to drive the first rotating brush 1011 to rotate and the first transmission mechanism 21 is in power connection with the second transmission mechanism 22 via the drive shaft 23 to drive the second rotating brush 1012 to rotate.Since the transmission ratio of the first transmission mechanism 21 and the transmission ratio of the second transmission mechanism 22 are different, the rotational speed of the first rotating brush 1011 is different from the rotational speed of the second rotating brush 1012. By providing the transmission shaft 23, it is possible to achieve the function of driving two rotating brushes to rotate at different speeds by means of a single drive part, which reduces the power module, simplifies the structure, has a small footprint and reduces the cost.

[0280] In one embodiment, as shown in Figures 36 to 38, the first transmission mechanism 21 comprises a first gear train 211. The first gear train 211 comprises a first output end and a second output end. The first output end is connected to the first rotating brush 1011, and the second output end is connected to the drive shaft 23. The second transmission mechanism 22 comprises a second gear train 221. The drive shaft 23 is connected to the second gear train 221, and the output end of the second gear train 221 is connected to the second rotating brush 1012.

[0281] As shown in [Fig. 36], the output shaft of the first drive part 331 is in power connection with the first gear train 211. The first output end of the first gear train 211 is connected to the first rotating brush 1011 to drive the first rotating brush 1011 to rotate, and the second output end of the first gear train The gear train 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 connected to the second gear train 221, and the output end of the second gear train 221 is connected to the second rotating brush 1012 to drive the second rotating brush 1012 to rotate. The transmission differential is achieved by the different structures of the first gear train 211 and the second gear train 221, and can be specifically designed to adjust the gear structure, quantity, and number of teeth to achieve the function of adjusting the transmission ratio differential.

[0282] In one embodiment, as shown in [Fig. 39], the first gear train 211 comprises 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 331. The first gear 2111 is in power connection with the second gear 2112. The second gear 2112 is a first output end and is arranged coaxially with the first rotating brush 1011. The first gear 2111 or the second gear 2112 is in power connection with the third gear 2113. The third gear 2113 is a second output end and is connected to the transmission shaft 23.

[0283] In the above embodiment, where the first transmission mechanism 21 and the second transmission mechanism 22 share a common drive portion, the first gear train 211 comprises the first gear 2111 connected to an output shaft of the first drive portion 331. The first gear 2111 is in power connection with the first output end. The first gear 2111 or the first output end is in power connection with the second output end. Other gears satisfying the requirement may be provided between the first gear 2111 and the first output end, between the first gear 2111 and the second output end, and between the first and second output ends, depending on the power requirement.

[0284] As shown in [Fig. 39], the first gear train 211 may further comprise 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 is meshed 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 is meshed with the first gear 2111 and the third gear 2113. Or the fifth gear 2115 is provided between the second gear 2112 and the third gear 2113 and is meshed with the second gear 2112 and the third gear 2113.

[0285] The first output end of the first gear train 211 is the second gear 2112. The fourth gear 2114 and / or the fifth gear 2115 can be meshed between the first gear 2111 and the second gear 2112 for transmission. The second output end of the first gear train 211 is the third gear 2113. A sixth gear 2116 can be meshed with 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 can also be a plurality of gears to obtain the transmission between the drive part 303, the first output end and the second output end.

[0286] In one embodiment, as shown in [Fig. 40], the second gear train 221 comprises 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 power connection with the eighth gear 2212. The eighth gear 2212 is a third output end and is connected to the second rotating brush 1012. The eighth gear 2212 is arranged coaxially with the second rotating brush 1012.

[0287] In the above embodiment, in the case where the first transmission mechanism 21 and the second transmission mechanism 22 share a common drive part, the second gear train 221 includes the seventh gear 2211 connected to the transmission shaft 23. The seventh gear 2211 is in power connection with the output end of the second gear train 221. Other gears satisfying the requirement may be provided between the seventh gear 2211 and the output end according to the power requirement.

[0288] As shown in [Fig.40], the second gear train 221 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 meshed with the seventh gear 2211 and the eighth gear 2212.

[0289] The output end of the second gear train 221 is the eighth gear 2212. The ninth gear 2213 can be meshed between the seventh gear 2211 and the eighth gear 2212 for transmission. The ninth gear 2213 is not limited to a single gear, but 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 train 221.

[0290] In one embodiment, as shown in [Fig.41], the drive part 303 further comprises a first drive part 331 and a second drive part 332. The output shaft of the first drive part 331 is in power connection with the first transmission mechanism 21, and the output shaft of the second drive part 332 is in power connection with the second transmission mechanism 22.

[0291] In the above embodiment, in the case where the first transmission mechanism 21 and the second transmission mechanism 22 do not share a common drive part, the drive part 303 comprises the first drive part 331 and the second drive part 332. The first drive part 331 drives the first rotating brush 1011 to rotate via the first transmission mechanism 21 and the second drive part 332 drives the second rotating brush 1012 to rotate via the second transmission mechanism 22.

[0292] It should be noted that there is a difference in output rotational speed between the first drive part 331 and the second drive part 332; and / or there is a difference in transmission ratio between the first transmission mechanism 21 and the second transmission mechanism 22 to obtain the function of forming a difference in rotational speed between the first rotating brush 1011 and the second rotating brush 1012.

[0293] As shown in [Fig. 41], the first transmission mechanism 21 comprises the first gear train 211. The output end of the first gear train 211 is in power connection with the first rotating brush 1011. The second transmission mechanism 22 comprises a second gear train 221. The output end of the second gear train 221 is in power connection with the second rotating brush 1012.

[0294] In the case where the output rotational speed of the first drive part 331 and the output rotational speed of the second drive part 332 are the same, the transmission ratio of the first transmission mechanism 21 may be different from the transmission ratio of the second transmission mechanism 22. That is to say, the first gear train 211 and the second gear train 221 have different structures, in order to achieve the effect that the rotational speeds of the first rotating brush 1011 and the second rotating brush 1012 are different.

[0295] In the case where the output rotational speed of the first drive part 331 and the output rotational speed of the second drive part 332 are different, the transmission ratio of the first transmission mechanism 21 can be the same as the transmission ratio of the second transmission mechanism 22. That is to say, the first gear train 211 and the second gear train 221 has the same structure in order to achieve the effect that the rotational speeds of the first rotating brush 1011 and the second rotating brush 1012 are different.

[0296] In the case where the output rotational speed of the first drive part 331 and the output rotational speed of the second drive part 332 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 to say, the first gear train 211 and the second gear train 221 have different structures, in order to achieve the effect that the rotational speeds of the first rotating brush 1011 and the second rotating brush 1012 are different.

[0297] In one embodiment, as shown in [Fig. 36], the first transmission mechanism 21 further comprises a first housing 212. The first gear train 211 is positioned in the first housing 212. The first drive part 331 is located outside the first housing 212. The output shaft of the first drive part 331 passes through the first housing 212 and is in power connection with the first gear train 211. The rotation shaft of the first rotating brush 1011 passes through the first housing 212 and is in power connection with the first gear train 211.

[0298] It should be noted that the first housing 212 is fitted onto the first gear train 211. 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 for the first gear train 211, which is favorable for extending service life and reliability, and at the same time favorable for ensuring good transmission accuracy.

[0299] Specifically, the first housing 212 may include a first upper housing and a first lower housing which are removably connected to facilitate the disassembly and assembly of the first housing 212 and also the disassembly and assembly of the first gear train 211. The first upper housing and the first lower housing may be removably connected by at least one of a screw, a snap-fit ​​structure, a tenon and mortise structure and a magnetic suction structure.

[0300] 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 power connection with the first gear train 211. That is to say, the shaft of transmission 23 passes through the first housing 212 to be connected to the third gear 2113.

[0301] In one embodiment, as shown in [Fig.37], the second transmission mechanism 22 further comprises a second housing 222. The second gear train 221 is located inside the second housing 222. The rotation shaft of the second rotating brush 1012 passes through the second housing 222 and is in power connection with the second gear train 221.

[0302] It should be noted that the second housing 222 is fitted onto the second gear train 221. The seventh gear 2211, the eighth gear 2212 and the ninth gear 2213 are all positioned in the second housing 222 and the second housing 222 is used to provide good protection for the second gear train 221, which is favorable for extending service life and reliability, and at the same time favorable for ensuring good transmission accuracy.

[0303] Specifically, the second housing 222 may include a second upper housing and a second lower housing which are connected in a removable manner, facilitating the disassembly and assembly of the second housing 222 and also the disassembly and assembly of the second gear train 221. The second upper housing and the second lower housing may be connected in a removable manner by at least one of a screw, a snap-fit ​​structure, a tenon and mortise structure and a magnetic suction structure.

[0304] In the case where the first transmission mechanism 21 and the second transmission mechanism 22 share a common drive part, the transmission shaft 23 passes through the second housing 222 and is in power connection with the second gear train 221. That is to say, the transmission shaft 23 passes through the second housing 222 to be connected to the eighth gear 2212.

[0305] 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 332 is positioned outside the second housing 222. The output shaft of the second drive part 332 passes through the second housing 222 and is in power connection with the second gear train 221. The rotation shaft of the second rotary brush 1012 passes through the second housing 222 and is in power connection with the second gear train 221.

[0306] A cleaning apparatus is provided which comprises a main apparatus body and any one of the rotating brush devices as described above. The rotating brush device is connected to the main apparatus body.

[0307] In addition, a cleaning system is provided which includes any of the rotating brush assemblies, as described above, or a cleaning device as described above. The base station is configured to provide maintenance for the cleaning device.

[0308] The rotating brush device is applied to a cleaning appliance. The cleaning appliance may be a self-propelled robotic cleaner or another type of robotic cleaner that meets the requirements. The self-propelled robotic cleaner is an appliance that automatically performs cleaning in an area to be cleaned without user intervention. Specifically, the cleaning appliance may include a sweeping robot, an integrated sweeping and mopping robot, and the like. In the description of this specification, the description by reference to terms such as "an embodiment," "certain embodiments," "specific embodiments," and the like indicates that the specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of this utility model.In this specification, the schematic representations of the terms mentioned above do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics as described may be combined in any one or more embodiments or examples in an appropriate manner.

[0309] A person skilled in the art will readily understand that each of the advantageous modes described above can be freely combined and superimposed, provided that it does not conflict with the others.

[0310] The above describes purely preferred embodiments of this disclosure, and they are not intended to limit this disclosure. In the spirit and principles of the disclosure, modifications, equivalent substitutions, enhancements, and the like are within the scope of protection of this disclosure. The contents mentioned above are only the preferred implementations of this disclosure. It should be emphasized that a person skilled in the art can make several improvements and modifications without departing from the technical principle of this disclosure, and such improvements and modifications are considered to be within the scope of protection of this disclosure.

Claims

Demands

1. Assembly of rotating brushes comprising at least two rotating brushes (5,7), in which each rotating brush comprises 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 rotating brushes are arranged opposite each other, and a gap is provided between the oppositely arranged free ends.

2. Assembly of rotary brushes according to claim 1, wherein the rotary brush (5,7) comprises a shaft rod and a cleaning part arranged on the shaft rod; the cleaning part comprises a blade (2) and / or first groups of bristles (3), the cleaning part being optionally an assembly integrating the blade (2) with the first groups of bristles (3).

3. Assembly of rotating brushes according to claim 2, wherein the cleaning part comprises a blade (2) which is detachably arranged on the shaft rod.

4. Assembly of rotating brushes according to claim 2 or 3, wherein the cleaning part comprises a plurality of blades (2) arranged in a circumferential direction of the shaft, and first groups of bristles (3) which are arranged between adjacent blades (2) in the circumferential direction of the shaft.

5. Assembly of rotating brushes according to any one of claims 2 to 4, wherein the cleaning part comprises at least a first group of bristles (3) which includes a fixed end and a movable end, the fixed end is connected to the shaft rod, and the movable end extends in a direction opposite to the shaft rod and is inclined towards the free end of the rotating brush.

6. Assembly of rotating brushes according to claim 4, wherein an outer wall of the rotating brush is elastically deformable, or the outer wall of the rotating brush is rigid.

7. Assembly of rotating brushes according to claim 2, wherein the cleaning part comprises a blade (2) formed integrally with the shaft rod.

8. A set of rotary brushes according to claim 7, wherein the shaft and the blade (2) are made by injection molding of two colours or by injection molding in the mold or by liquid injection molding or by hydroforming.

9. Assembly of rotating brushes according to claim 7, wherein the shaft rod is made from PC or ABS or PA, or the shaft rod is made from 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 from TPU or TPE or silica gel or rubber.

10. Assembly of rotating brushes according to any one of claims 1 to 9, wherein the rotating brush comprises a shaft rod and an end cap (12), the end cap (12) is arranged on the shaft rod to form the free end of the rotating brush, and an end surface of the end cap (12) is arranged obliquely.

11. Assembly of rotating brushes according to claim 10, wherein the end surfaces of the end caps (12) arranged opposite the rotating brushes are inclined in the same direction.

12. Assembly of rotating brushes according to claim 10, wherein the end surface is an arc surface or a plane.

13. Assembly of rotating brushes according to any one of claims 1 to 12, wherein there is a difference in rotational speed between two rotating brushes arranged opposite each other.

14. Assembly of rotating brushes according to any one of claims 1 to 13, wherein the assembly of rotating brushes further comprises a first blocking part (8) and at least a part of the first blocking part (8) is positioned between the rotating brushes arranged opposite each other.

15. Rotary brush assembly according to claim 14, wherein the rotary brush assembly comprises a rotary brush bin and the first blocking part (8) is arranged on an internal wall of the rotary brush bin.

16. A rotary brush assembly according to claim 15, wherein the rotary brush bin is provided with a dust collection port (91), the dust collection port (91) is configured to communicate with a dust compartment and the first blocking part (8) is arranged on the inner wall of one side of the rotating brush bin opposite the dust collection port (91) and is arranged opposite the dust collection port (91).

17. Assembly of rotating brushes according to claim 15, wherein the first blocking part (8) comprises a connecting segment (81) and a blocking segment (82), the connecting segment (81) is connected to the inner wall of the rotating brush bin, the blocking segment (82) is connected to the connecting segment (81) and an extension direction of the blocking segment (82) is different from an extension direction of the connecting segment (81).

18. Assembly of rotating brushes according to any one of claims 1 to 17, wherein the assembly of rotating brushes comprises a support, the support comprises a mounting rod (41), and the rotating brush is mounted on the mounting rod (41).

19. Assembly of rotating brushes according to claim 18, wherein the fitting rod (41) comprises an inner rod and an outer rod, the outer rod is fitted onto an outer peripheral side of the inner rod, the inner rod is provided with a bearing (42) and the inner rod is connected to an inner wall of the outer rod by means of the bearing (42).

20. Assembly of rotating brushes according to claim 19, wherein there are at least two bearings (42), and the at least two bearings (42) are arranged in an axial direction of the internal rod.

21. Assembly of rotating brushes according to claim 19, wherein the bearing (42) is an oil retaining bearing (42) and / or a ball bearing (42).

22. Assembly of rotating brushes according to claim 18, wherein there are two supports, and the shanks (41) of the two supports are identical or different.

23. Assembly of rotary brushes according to claim 22, wherein the rotary brush is provided with a mounting hole and the rotary brush is mounted on the mounting rod (41) through the mounting hole and the mounting holes of the different rotary brushes are identical or different.

24. A set of rotating brushes according to any one of claims 1 to 23, wherein the set of rotating brushes includes a rotating brush bin, the rotating brush bin is provided with a dust collection port (91), the dust collection port (91) is configured to communicate with a dust compartment, and the free ends of at least two rotating brushes are arranged obliquely towards the dust collection port (91).

25. Assembly of rotating brushes according to claim 24, wherein the assembly of rotating brushes comprises a support, the rotating brush is arranged, in a rotational manner, on the support, one end of the support is connected with the drive device, and the other end of the support is inclined towards the dust collection port (91).

26. Rotary brush assembly according to claim 24, wherein the rotary brush assembly comprises a main brush cover (9), a dust inlet is arranged on the main brush cover (9), and an opening angle of the dust inlet is adapted to an angle formed between the two rotary brushes.

27. ​​Assembly of rotating brushes according to claim 1, wherein at least one of the rotating brushes comprises: a main rotating brush body (201) comprising a shaft rod (2011) and a blade (2012), the blade (2012) being arranged on an external peripheral side of the shaft rod (2011); and a second locking part (202) arranged at an end portion of the main rotating brush body (201), a portion of the blade (2012) being inclined in an axial direction of the shaft rod (2011) and inserted into the second locking part (202).

28. Assembly of rotating brushes according to claim 27, wherein the blade (2012) comprises: a main blade body (122); and an extension portion (121) arranged at an end portion of the main blade body (122), a portion of the extension portion (121) being inserted into the second locking portion (202), the extension portion (121) is positioned on an inner side of an outer edge of the main blade body (122) in a radial direction of the main rotating brush body (201), and the extension portion (121) is positioned on an inner side of an outer edge of the second locking portion (202).

29. Assembly of rotating brushes according to claim 28, wherein a radial height of at least a part of the extension part (121) is less than a radial height of the second locking part (202).

30. Assembly of rotating brushes according to claim 28, wherein there is a plurality of blades (2012), the plurality of blades (2012) is arranged in a circumferential direction of the shaft rod (2011), and a radial distance between the extension part (121) and the shaft rod (2011) is less than a radial distance between the outer edge of the main blade body (122) and the shaft rod (2011).

31. Assembly of rotating brushes according to claim 28, wherein at least a part of an outer edge of the extension part (121) is a guide segment and the guide segment is arranged between the second locking part (202) and the main blade body (122).

32. Assembly of rotating brushes according to claim 31, wherein the guide segment comprises an oblique segment and / or an arc segment.

33. Assembly of rotating brushes according to claim 32, wherein a ratio of a minimum radial distance between the guide segment and the shaft rod (2011) to a radial distance between the outer edge of the main blade body (122) and the shaft rod (2011) is in a range of 0.5 to 0.

9.

34. A rotary brush assembly according to claim 28, wherein the shaft rod (2011) is provided with an end plate (2013), a plurality of blades (2012) are integrated on the end plate (2013), the blades (2012) extend out of one side of the end plate (2013) opposite the main blade bodies (122), and the second locking part (202) is positioned on one side of the end plate (2013) opposite the main blade bodies (122).

35. Assembly of rotating brushes according to claim 27, wherein the shaft rod (2011) comprises: a main shaft rod body (111); and an annular flange (112) arranged at an end portion of the main shaft rod body (111), the second locking portion (202) being fitted onto the annular flange (112).

36. A set of rotating brushes according to claim 28, wherein the second locking part (202) comprises second groups of hairs (2022) arranged in a circumferential direction of the tree stem (2011), and the extension part (121) is inserted into a gap between the second groups of hairs (2022).

37. Assembly of rotating brushes according to claim 36, wherein the second locking part (202) comprises an annular part (2021), the annular part (2021) is fitted onto the shaft rod (2011), the second group of bristles (2022) comprises a fixed end and a free end, the fixed end is connected to the annular part (2021) and the free end extends in a direction opposite to the shaft rod (2011).

38. Assembly of rotating brushes according to claim 36, wherein the second group of bristles (2022) is made from 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. Assembly of rotating brushes according to claim 28, wherein the second locking part (202) comprises an annular part (2021), the annular part (2021) is fitted onto the shaft rod (2011) and the annular part (2021) is provided with a groove (2023) into which the extension part (121) is to be inserted.

40. Assembly of rotating brushes according to claim 39, wherein the second blocking part (202) is made from a felt material.

41. Assembly of rotating brushes according to claim 36 or 39, wherein the second locking part (202) and the shaft rod (2011) are formed in a unified manner or are a two-part structure.

42. A rotating brush assembly according to claim 28, wherein the rotating brush assembly is applied in a cleaning device, and the cleaning device includes a tub body (300) for housing the rotating brush, and the second blocking part (202) is positioned between the shaft rod (2011) and the tub body (300) and fills a gap between the shaft rod (2011) and the tub body (300) and stops the movement of hair or fur towards the gap.

43. Assembly of rotating brushes according to claim 42, wherein there is no contact between the blade (2012) and the bin body (300) and there is interference between the second blocking part (202) and the bin body (300).

44. Assembly of rotating brushes according to claim 43, wherein at least a portion of the second blocking part (202) is elastic, and the second blocking part (202) is always in close contact with the bin body (300) during a relative displacement process of the second blocking part (202) and the bin body (300).

45. Rotary brush assembly according to claim 27, wherein the rotary brush assembly (200) comprises a bin body (300), the rotary brush (100) is arranged in the bin body (300) and the bin body (300) is provided with: a main brush orifice (34), the blade (2012) penetrating the main brush orifice (34) to interfere with a surface to be cleaned; and a corresponding cavity (33) positioned on an external peripheral side of the second blocking part (202) and interfering with the second blocking part (202).

46. Assembly of rotary brushes according to claim 19, wherein the connecting end of each rotary brush is in power connection with the drive device via a rotating shaft, and the connecting end of the rotary brush is provided with a second locking part (202).

47. Rotary brush device comprising: the set of rotary brushes (200) according to any one of claims 1 to 46; a transmission part (302) comprising a first transmission mechanism (21) and a second transmission mechanism (22), in which the first transmission mechanism (21) is connected with the first rotary brush (1011) and the second transmission mechanism (22) is connected with a second rotary brush (1012); and a drive part (303) configured to drive the first transmission mechanism (21) and the second transmission mechanism (22) in order to drive the first rotary brush (1011) and the second rotary brush (1012) to rotate, in which there is a difference in rotational speed between the first rotary brush (1011) and the second rotary brush (1012).

48. A rotating brush device according to claim 47, further comprising: a mounting frame (304), in which the drive part (303) and the transmission part (302) are arranged on the mounting frame (304) and the mounting frame (304) is connected with a main body of a cleaning device.

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

50. Rotating brush device according to claim 47 or 49, wherein: there is interference between the first rotating brush (1011) and the second rotating brush (1012) or there is no contact between the first rotating brush (1011) and the second rotating brush (1012).

51. A rotating brush device according to claim 47, wherein a ratio of a rotational speed of the first rotating brush (1011) to a rotational speed of the second rotating brush (1012) is in a range of 0.8 to 0.

99.

52. A rotary brush device according to claim 47, wherein the drive part (303) further comprises: a first drive part (331), an output shaft of the first drive part (331) being in power connection with the first transmission mechanism (21); and a transmission shaft (23), the first transmission mechanism (21) being in power connection with 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).

53. A rotary brush device according to claim 52, wherein: the first transmission mechanism (21) comprises a first gear train (211), the first gear train (211) comprises a first output end and a second output end, the first output end is in power connection with the first rotary brush (1011) and the second output end is in power connection with the transmission shaft (23); and the second transmission mechanism (22) comprises a second gear train (221), the transmission shaft (23) is in power connection with the second gear train (221), and one output end of the second gear train (221) is in power connection with the second rotating brush (1012).

54. A rotary brush device according to claim 53, wherein the first gear train (211) comprises: a first gear (2111) connected with the output shaft of the first drive part (331); a second gear (2112), the first gear (2111) being in power connection with the second gear (2112), and the second gear (2112) being the first output end and arranged coaxially with the first rotary brush (1011); and a third gear (2113), the first gear (2111) or the second gear (2112) being in power connection with the third gear (2113) and the third gear (2113) being the second output end and connected with the transmission shaft (23).

55. A rotating brush device according to claim 54, wherein the first gear train (211) further comprises: a fourth gear (2114) arranged 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) arranged 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 arranged between the second gear (2112) and the third gear (2113) and meshed with the second gear (2112) and the third gear (2113).

56. A rotary brush device according to any one of claims 53 to 55, wherein the second gear train (221) comprises: a seventh gear (2211) connected with the drive shaft (23); and an eighth gear (2212) in power connection with the seventh gear (2211), the eighth gear (2212) being a third output end and connected with the second rotary brush (1012), and arranged coaxially with the second rotary brush (1012).

57. Rotary brush device according to claim 56, wherein the second gear train (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).

58. A rotary brush device according to claim 47, wherein the drive part (303) further comprises: a first drive part (331), an output shaft of the first drive part (331) being in power connection with the first transmission mechanism (21); and a second drive part (332), an output shaft of the second drive part (332) being in power connection with the second transmission mechanism (22); wherein there is a difference in output rotational speed between the first drive part (331) and the second drive part (332); and / or there is a difference in transmission ratio between the first transmission mechanism (21) and the second transmission mechanism (22).

59. Rotary brush device according to claim 58, wherein: the first transmission mechanism (21) comprises a first gear train (211), and an output end of the first gear train (211) is in power connection with the first rotary brush (1011); and the second transmission mechanism (22) comprises a second gear train (221), and an output end of the second gear train (221) is in power connection with the second rotary brush (1012).

60. A rotary brush device according to claim 53 or 59, wherein the first transmission mechanism (21) further comprises: a first housing (212), in which the first gear train (211) is positioned within the first housing (212), the first drive part (331) is positioned outside the first housing (212), the output shaft of the first drive part (331) enters the first housing (212) to be in power connection with the first gear train (211), and a rotation shaft of the first rotary brush (1011) enters the first housing (212) to be in power connection with the first gear train (211).

61. Rotary brush device according to claim 53 or 59, wherein the second transmission mechanism (22) further comprises: a second housing (222), in which the second gear train (221) is positioned in the second housing (222), and a rotation shaft of the second rotary brush (1012) enters the second housing (222) to be in power connection with the second gear train (221).

62. Cleaning apparatus comprising: a main apparatus body; and the rotating brush device according to any one of claims 47 to 61, the rotating brush device being connected with the main apparatus body.

63. Cleaning apparatus comprising the set of rotating brushes according to any one of claims 1 to 46.

64. Cleaning system comprising the cleaning apparatus according to claim 62 or 63; and a base station configured to provide maintenance for the cleaning apparatus.

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