Rolling brush assembly and cleaning device

Abstract

The utility model discloses a rolling brush assembly and a cleaning device.The rolling brush assembly comprises a support, a first rolling brush part, a second rolling brush part and a connecting shaft, the first rolling brush part and the second rolling brush part are both rotationally connected with the support around a first axis, and the second rolling brush part and the first rolling brush part are arranged at intervals in the length direction of the first axis; the axis of the first rolling brush part, the axis of the second rolling brush part and the first axis coincide, first bristles are arranged on the circumferential side of the first rolling brush part and spirally distributed in the circumferential direction of the first rolling brush part, and second bristles are arranged on the circumferential side of the second rolling brush part and spirally distributed in the circumferential direction of the second rolling brush part; the connecting shaft is connected with the first rolling brush part in the length direction of the first axis so that the connecting shaft can make contact with or be separated from the second rolling brush part, and when the connecting shaft makes contact with the second rolling brush part, the two rolling brush parts can synchronously rotate. According to the embodiment of the invention, hair gathered between the two rolling brush parts can be cleared out more easily from the gap.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning devices, in particular to a rolling brush assembly and a cleaning device. BACKGROUND

[0002] Cleaning devices gradually develop from primary intelligence to a higher degree of intelligence, gradually replacing manual cleaning, and will become an indispensable cleaning aid for many families, such as cleaning robots, handheld vacuum cleaners, etc. In the related art, many cleaning devices are provided with a rolling brush. When the cleaning device is sweeping, hair often gets into the rolling brush. Over time, it is difficult to clean the accumulated hair and it affects the service life of the rolling brush. CONTENT OF THE UTILITY MODEL

[0003] The rolling brush assembly and the cleaning device provided by the embodiments of the present application can effectively improve the problem of hair winding on the rolling brush.

[0004] In a first aspect, the embodiments of the present application provide a rolling brush assembly, comprising:

[0005] a support;

[0006] a first rolling brush part, rotationally connected with the support, the first rolling brush part being capable of rotating relative to the support about a first axis, a first bristle being arranged on a circumferential side of the first rolling brush part, the first bristle being arranged in a spiral shape about a circumferential direction of the first rolling brush part;

[0007] a second rolling brush part, arranged in a length direction of the first axis and spaced from the first rolling brush part, the second rolling brush part being rotationally connected with the support, the second rolling brush part being capable of rotating relative to the support about the first axis, an axis of the first rolling brush part, an axis of the second rolling brush part and the first axis being coincident, a second bristle being arranged on a circumferential side of the second rolling brush part, the second bristle being arranged in a spiral shape about a circumferential direction of the second rolling brush part;

[0008] a connecting shaft, connected with the first rolling brush part, the connecting shaft being capable of moving relative to the first rolling brush part along the length direction of the first axis, so as to make the connecting shaft contact and separate from the second rolling brush part, when the connecting shaft contacts the second rolling brush part, the second rolling brush part is capable of rotating synchronously with the first rolling brush part.

[0009] In a second aspect, the embodiments of the present application further provide a cleaning device, comprising a shell, a motor and a rolling brush assembly as described in any of the above embodiments, the rolling brush assembly and the motor being arranged in the shell, the motor being connected with the first rolling brush part, the motor being used to drive the first rolling brush part to rotate about the first axis, and also being used to drive the connecting shaft to move in an extension and retraction manner along the length direction of the first axis.

[0010] Based on the rolling brush assembly and the cleaning device in the embodiments of the present application, the rolling brush assembly is provided with helical bristles on both sides, so that most of the hair wrapped in the rolling brush assembly is gathered from the outside to the middle of the connecting shaft position, so as to facilitate the cleaning of the hair on the rolling brush assembly. The first rolling brush part is provided with a telescopic connecting shaft, so that the rolling brush assembly can work as a whole during work, so as to facilitate the synchronous work of the two rolling brush parts. When the rolling brush assembly is cleaned, the movement of the connecting shaft can also make the two rolling brush parts have a gap, so that the hair gathered between the two rolling brush parts can be more easily cleaned out of the gap. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0012] Figure 1 Structure diagram of the connecting shaft of the rolling brush assembly in an embodiment of the present application;

[0013] Figure 2 Structure diagram of the connecting shaft of the rolling brush assembly in an embodiment of the present application;

[0014] Figure 3 Structure diagram of the connecting shaft of the rolling brush assembly in an embodiment of the present application;

[0015] Figure 4 Structure diagram of the connecting shaft of the rolling brush assembly in an embodiment of the present application;

[0016] Figure 5 Structure diagram of the connecting shaft of the rolling brush assembly in an embodiment of the present application;

[0017] Figure 6 Structure diagram of the cleaning device in an embodiment of the present application;

[0018] Figure 7 Structure diagram of the cleaning device in another embodiment of the present application.

[0019] Reference signs:

[0020] 1. Rolling brush assembly;

[0021] 10. Support;

[0022] 20, first roller brush part; 21, first bristle; 22, accommodating groove; 221, first contact part; 23, first brush sheet; 24, overhanging end; 25, mounting end;

[0023] 30, second roller brush part; 31, second bristle; 32, plug-in groove; 33, second brush sheet;

[0024] 40, connecting shaft; 41, second contact part; 42, first groove body; 421, guide groove; 43, plug-in part;

[0025] 50, rotating part;

[0026] 60, linkage rod; 61, protruding part;

[0027] 70, elastic member;

[0028] 2, cleaning device; 201, shell; 202, motor; 203, dust suction assembly; 2031, suction port;

[0029] M, first axis. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0031] In the related art, many cleaning devices are provided with a roller brush. When the cleaning device is sweeping, hair often gets into the roller brush and is difficult to clean. Over time, the hair that is difficult to clean accumulates and affects the service life of the roller brush.

[0032] In view of the above situation, in a first aspect, referring to Figures 1-2 The present application provides a roller brush assembly 1, which comprises a support 10, a first roller brush part 20, a second roller brush part 30 and a connecting shaft 40. The first roller brush part 20 and the second roller brush part 30 are both arranged on the support 10 and are rotationally connected with the support 10. The support 10 can provide a setting basis for the two roller brush parts, so that the two roller brush parts can smoothly perform cleaning work.

[0033] The first roller brush part 20 is capable of rotating relative to the support 10 around the first axis M; the second roller brush part 30 is arranged in the length direction of the first axis M and is capable of rotating relative to the support 10 around the first axis M, the axis of the first roller brush part 20, the axis of the second roller brush part 30 and the first axis M are all coincident, so as to improve the synchronization of the first roller brush part 20 and the second roller brush part 30 in motion; the connecting shaft 40 is connected with the first roller brush part 20 and is capable of moving in the length direction of the first axis M relative to the first roller brush part 20, so as to make the connecting shaft 40 contact and separate from the second roller brush part 30. The specific connection and driving mode of the connecting shaft 40 and the first roller brush part 20 are described below.

[0034] Specifically, the first roller brush part 20 is capable of rotating relative to the support 10 around the first axis M under the action of external driving force, so as to perform cleaning work; the connecting shaft 40 is capable of moving in the length direction of the first axis M under the action of external driving force or other moving parts, that is, the connecting shaft 40 is capable of telescopic movement relative to the first roller brush part 20. When the roller brush assembly 1 is cleaning, the connecting shaft 40 moves to contact the second roller brush part 30, at this time, the connecting shaft 40 is connected with the second roller brush part 30, the second roller brush part 30 can be connected with the first roller brush part 20 through the connecting shaft 40, so that the second roller brush part 30 can be driven by the first roller brush part 20 to move synchronously with the first roller brush part 20, so as to perform cleaning work; when the roller brush assembly 1 is cleaning, after the hair is wound on the roller brush part, the connecting shaft 40 can move to separate from the second roller brush part 30 (that is, retract to one side of the first roller brush part 20), at this time, the connecting shaft 40 and the second roller brush part 30 have a gap position (as shown in Figure 2 It can be understood that in the embodiment, only a single motor 202 can be provided to drive the two roller brush parts in the roller assembly to rotate, that is, the single motor 202 drives the first roller brush part 20 in the roller brush assembly 1 to rotate, and the first roller brush part 20 can drive the second roller brush part 30 to move synchronously through the connecting shaft 40.

[0035] It can be understood that in the embodiment, only a single motor 202 can be provided to drive the two roller brush parts in the roller assembly to rotate, that is, the single motor 202 drives the first roller brush part 20 in the roller brush assembly 1 to rotate, and the first roller brush part 20 can drive the second roller brush part 30 to move synchronously through the connecting shaft 40.

[0036] The first brush portion 20 is provided with a first bristle 21 on the circumferential side, and the first bristle 21 is arranged in a spiral shape around the circumference of the first brush portion 20. The second brush portion 30 is provided with a second bristle 31 on the circumferential side, and the second bristle 31 is arranged in a spiral shape around the circumference of the second brush portion 30. It can be understood that there is a gap between the first brush portion 20 and the second brush portion 30. When the roller brush assembly 1 is rolled into hair during cleaning, due to the spiral bristle structure on the first brush portion 20 and the second brush portion 30, most of the rolled-in hair can be gathered from the outside of the roller brush assembly 1 to the gap position between the first brush portion 20 and the second brush portion 30. Most of the hair will converge on the connecting shaft 40 in the middle. When the user cleans it later, the connecting shaft 40 can also be moved towards the first brush portion 20, so as to separate the connecting shaft 40 from the second brush portion 30, so as to more thoroughly clean the hair on the roller brush assembly 1.

[0037] It should be noted that the embodiments of the present application are provided with spiral bristles on both sides of the brush portion, so that most of the rolled-in hair can be gathered from the outside of the roller brush assembly 1 to the connecting shaft 40 in the middle, so as to clean the hair on the roller brush assembly 1. In addition, the connecting shaft 40 on the first brush portion 20 can be moved, so that the roller brush assembly 1 can work as a whole during work, so that the two brush portions work synchronously. At the same time, when cleaning the roller brush assembly 1, the movement of the connecting shaft 40 can also make the two brush portions have a gap, so that the hair gathered between the two brush portions is more easily cleaned out of the gap.

[0038] As shown in Figure 2 The first bristle 21 is provided with a plurality of rows, and the two adjacent rows of first bristles 21 are arranged side by side and spaced apart around the circumference of the first brush portion 20. The first bristle 21 includes a brush sheet 211 and a planted bristle 212, and the brush sheet 211 and the planted bristle 212 are arranged side by side and spaced apart around the circumference of the first brush portion 20. The brush sheet 211 and the planted bristle 212 are arranged in a spiral shape around the circumference of the first brush portion 20. The brush sheet 211 is in contact with the ground through a planar structure, which is more convenient for cleaning the garbage on the ground. The planted bristle 212 is in contact with the ground through a plurality of clusters of bristles, which further cleans the hair and other sundries on the ground, so that the first brush portion 20 can better complete the cleaning work. The structure of the second bristle 31 can be the same as that of the first bristle 21.

[0039] In some embodiments, as Figures 2-3As shown, the first brush roll part 20 is further provided with a first brush sheet 23 on the circumferential side of the first brush roll part 20, the first brush sheet 23 is arranged in a spiral shape around the circumference of the first brush roll part 20, and the first brush sheet 23 is arranged side by side and spaced apart from the first bristles 21 around the circumference of the first brush roll part 20. It can be understood that the first brush sheet 23 contacts the ground through a planar structure, which is more convenient for cleaning garbage on the ground, and the first bristles 21 contact the ground through multiple clusters of bristles, which further cleans hair and other debris on the ground, so that the first brush roll part 20 can better complete the cleaning work and improve the cleaning efficiency of the brush assembly 1. Among them, the first brush sheet 23 is provided with multiple rows, and the brush sheet itself is arranged in a spiral shape on the brush roll part, so that the adjacent two rows of brush sheets are arranged in a diagonal parallel manner, thereby ensuring that the contact time of the brush sheet with the ground is evenly distributed, and the contact time interval of the brush sheet with the ground is shortened, thereby improving the cleaning efficiency of the brush roll part.

[0040] Similarly, the structure of the second brush roll part 30 can be the same as that of the first brush roll part 20, that is, multiple rows of second brush sheets 33 can also be provided on the second brush roll part 30, and the arrangement manner of the second brush sheet 33 is symmetrical to the arrangement manner of the first brush sheet 23 relative to the connecting shaft 40.

[0041] Further, as shown in Figures 1-2 The first brush roll part 20 has a free end 24 close to the second brush roll part 30 and a mounting end 25 away from the second brush roll part 30, the first brush roll part 20 and the second brush roll part 30 are arranged in a length direction along the first axis M, and the spiral directions of the first bristles 21 and the second bristles 31 are arranged in opposite directions along the extension direction of the connecting shaft 40, for example, along the direction from the free end 24 to the mounting end 25. Among them, the spiral is divided into left-handed and right-handed, and if the spiral is counterclockwise from the spiral center along the first axis M, it is left-handed, and vice versa. Along the direction from the free end 24 to the mounting end 25, the spiral direction of one of the first bristles 21 and the second bristles 31 is left-handed, and the spiral direction of the other is right-handed, so that when the hair is rolled into the brush roll part, the hair can be gathered from the outside of the first brush roll part 20 and the second brush roll part 30 to the middle gap position. When the user cleans the hair on the brush assembly 1 in the subsequent process, the connecting shaft 40 can be stretched towards the first brush roll part 20, so that the connecting shaft 40 is separated from the second brush roll part 30, and at this time, the connecting shaft 40 and the second brush roll part 30 have a gap position, so as to more thoroughly clean the hair in the middle gap position, thereby preventing the hair from being accumulated on the brush assembly 1 for a long time and affecting the service life of the brush roll part.

[0042] In some embodiments, as shown in Figure 3As shown, the first brush roll part 20 and the second brush roll part 30 have a gap therebetween, and the gap therebetween can be connected by the connecting shaft 40. When the connecting shaft 40 extends out to contact the second brush roll part 30, the orthogonal projection of the first bristles 21 on the connecting shaft 40 partially overlaps the orthogonal projection of the second bristles 31 on the connecting shaft 40, that is, although the first brush roll part 20 and the second brush roll part 30 have a gap therebetween, the first bristles 21 and the second bristles 31 can both extend to the gap position in the middle. When the brush roll assembly 1 is cleaning, the first bristles 21 and the second bristles 31 can not only sweep to the position of the brush roll part, but also sweep to the gap position in the middle of the two brush roll parts, thereby preventing the middle from being missed when the brush roll assembly 1 is cleaning.

[0043] Please refer to Figures 2-4 In some embodiments of the present application, the first brush roll part 20 has a free end 24 close to the second brush roll part 30, and the free end 24 of the first brush roll part 20 is provided with a receiving groove 22 for accommodating the connecting shaft 40. It is easy to understand that when the connecting shaft 40 moves in the length direction of the first axis M relative to the first brush roll part 20, the connecting shaft 40 can extend out of the receiving groove 22 and contact and connect with the second brush roll part 30. The connecting shaft 40 can also retract into the receiving groove 22 and separate from the second brush roll part 30, at which time the first brush roll part 20 and the second brush roll part 30 have a gap therebetween. The receiving groove 22 can provide accommodation space for the connecting shaft 40 and also provide avoidance space for the movement of the connecting shaft 40.

[0044] Alternatively, in other embodiments, the connecting shaft 40 includes a first sleeve and a second sleeve, the first sleeve is arranged at the end of the first brush roll part 20 towards the second brush roll part 30, and the second sleeve is slidingly connected with the first sleeve in the length direction of the first axis M. When the second sleeve slides into the inside of the first sleeve, the first brush roll part 20 separates from the second brush roll part 30. When the second sleeve slides out of the first sleeve, the second sleeve contacts the second brush roll part 30, and the first brush roll part 20 is connected with the second brush roll part 30 through the first sleeve and the second sleeve.

[0045] In some embodiments, the end of the connecting shaft 40 away from the second brush roll part 30 is provided with a buffer block. When the connecting shaft 40 retracts into the receiving groove 22, the buffer block can be used to abut against the bottom wall of the receiving groove 22, thereby buffering the contact between the connecting shaft 40 and the bottom wall of the receiving groove 22, reducing the damage of the connecting shaft 40 to the first brush roll part 20.

[0046] Further, please refer to Figures 4-5In some embodiments of the present application, the inner side wall of the accommodating groove 22 is provided with a first contact part 221, and the circumferential side of the connecting shaft 40 is provided with a second contact part 41, the first contact part 221 contacts with the second contact part 41 to prevent the connecting shaft 40 from rotating relative to the first rolling brush part 20 around the first axis M.

[0047] For example, the first contact part 221 is a first side wall in a planar shape, and the second contact part 41 is a first side face in a planar shape, the first side face contacts with the first side wall, it is easy to understand that the two planar side walls contact with each other, that is, the connecting shaft 40 has rotational interference with the inner side wall of the accommodating groove 22, so that the movement direction between the connecting shaft 40 and the first rolling brush part 20 is more stable, when the connecting shaft 40 moves along the length direction of the first axis M relative to the first rolling brush part 20, the contact between the first side face and the first side wall can prevent the relative rotation between the connecting shaft 40 and the first rolling brush part 20. Wherein, the circumferential side of the connecting shaft 40 also has a second side face in a planar shape, the second side face is oppositely arranged with the first side face, and the cross-sectional shape of the connecting shaft 40 in the direction perpendicular to the first axis M is substantially a track shape. Alternatively, the first contact part 221 can be a protruding structure, and the second contact part 41 can be a groove structure, the protruding structure is accommodated in the interior of the groove structure, thereby preventing the connecting shaft 40 from rotating relative to the first rolling brush part 20 around the first axis M.

[0048] Please refer to Figure 3 and Figure 5 In some embodiments of the present application, the end of the second rolling brush part 30 towards the first rolling brush part 20 is provided with a plug-in groove 32 (as shown in Figure 2 ), and the end of the connecting shaft 40 towards the second rolling brush part 30 is provided with a plug-in part 43; when the connecting shaft 40 starts to contact with the second rolling brush part 30, the plug-in part 43 is inserted into the plug-in groove 32, so that the connecting shaft 40 is clamped with the second rolling brush part 30.

[0049] Specifically, the end of the plug-in part 43 can be provided with a special-shaped protrusion, for example, a cross-shaped protrusion, a triangular protrusion, a square protrusion, etc., and the interior of the plug-in groove 32 has a special-shaped groove matched with the special-shaped protrusion, when the connecting shaft 40 starts to contact with the second rolling brush part 30, the plug-in part 43 is inserted into the plug-in groove 32, the special-shaped protrusion is correspondingly matched with the special-shaped groove, the connecting shaft 40 can more stably drive the second rolling brush part 30 to rotate, and prevent the relative rotation between the connecting shaft 40 and the second rolling brush part 30.

[0050] Please refer to Figures 2-3In some embodiments of the present application, the first rolling brush part 20 has a mounting end 25 away from the second rolling brush part 30, and the rolling brush assembly 1 further comprises a rotating part 50 and a linkage rod 60, the rotating part 50 is connected with the mounting end 25 of the first rolling brush part 20, the first end of the linkage rod 60 is connected with the rotating part 50, and the second end of the linkage rod 60 is connected with the connecting shaft 40.

[0051] Specifically, the rotating part 50 is used to be connected with an external motor 202, the rotating part 50 can drive the first rolling brush part 20 to rotate around the first axis M, and the rotating part 50 can also drive the linkage rod 60 to rotate around the first axis M, so that the linkage rod 60 drives the connecting shaft 40 to move in the length direction of the first axis M, that is, the linkage rod 60 can convert the rotary motion of itself into the linear motion of the connecting shaft 40.

[0052] Further, as shown in Figure 3 the second end of the linkage rod 60 is provided with a protrusion 61, the connecting shaft 40 is provided with a first groove body 42 extending along the length direction of the first axis M, the inner side wall of the first groove body 42 is provided with a guide groove 421 extending in a spiral shape, and the second end of the linkage rod 60 is arranged in the first groove body 42, and the protrusion 61 moves in the guide groove 421.

[0053] Specifically, the rotating part 50 drives the linkage rod 60 to rotate around the first axis M, and the connecting shaft 40 can move in the first axis M relative to the first rolling brush part 20, when the linkage rod 60 rotates, the guide groove 421 can provide the protrusion 61 on the linkage rod 60 with a guide and limiting action, therefore, under the cooperation of the protrusion 61 and the guide groove 421, the protrusion 61 moves in the spiral guide groove 421, so that the linkage rod 60 drives the connecting shaft 40 to move in the first axis M, that is, under the guide action of the spiral guide groove 421, the rotation of the linkage rod 60 is converted into the extension and retraction movement of the connecting shaft 40, until the protrusion 61 and the end of the guide groove 421 abut when the linkage rod 60 moves, at this time, the connecting shaft 40 contacts or separates from the second rolling brush part 30.

[0054] The external motor 202 can drive the rotating part 50 to rotate forward or reverse (clockwise or counterclockwise). For example, when the rotating part 50 rotates forward (clockwise), the linkage rod 60 also rotates forward. At this time, the protrusion 61 on the linkage rod 60 rotates forward in the guide groove 421. Since the guide groove 421 extends in a spiral shape, under the guidance of the guide groove 421, the connecting shaft 40 can move out in the direction close to the second roller brush part 30, so that the connecting shaft 40 is in contact with the second roller brush part 30. When the rotating part 50 reverses (counterclockwise), the linkage rod 60 also reverses. At this time, the protrusion 61 on the linkage rod 60 reverses in the guide groove 421. Since the guide groove 421 extends in a spiral shape, under the guidance of the guide groove 421, the connecting shaft 40 can move in the direction away from the second roller brush part 30, so that the connecting shaft 40 is separated from the second roller brush part 30, and the first roller brush part 20 and the second roller brush part 30 have a gap therebetween.

[0055] Please continue to see Figure 3 In some embodiments of the present application, the roller brush assembly 1 further comprises an elastic member 70, one end of the elastic member 70 is connected with the first roller brush part 20, and the other end of the elastic member 70 is connected with the connecting shaft 40.

[0056] Specifically, when the roller brush assembly 1 is in an unworking state, the first roller brush part 20 and the second roller brush part 30 are both in a state of stopping and no external force acting. At this time, the connecting shaft 40 can be in a relatively stable state under the elastic force of the elastic member 70. For example, at this time, the connecting shaft 40 can be in a stable state of being popped out, or at this time, the connecting shaft 40 can be in a stable state of being retracted. Thus, even when the roller brush assembly 1 is not working, the connecting shaft 40 will not move relative to the first roller brush part 20, which can prevent the connecting shaft 40 from shaking and generating noise when the roller brush assembly 1 is not working.

[0057] In a second aspect, please see Figures 6-7 The present application also provides a cleaning device 2, comprising a shell 201, a motor 202, and a roller brush assembly 1 as described in any of the above embodiments. The roller brush assembly 1 and the motor 202 are both arranged in the shell 201. The motor 202 is connected with the first roller brush part 20 through the rotating part 50. The motor 202 is used to drive the rotating part 50 and the first roller brush part 20 to rotate around the first axis M, and is also used to drive the connecting shaft 40 to move in the length direction of the first axis M, so that the connecting shaft 40 is in contact with and connected with the second roller brush part 30, and then the first roller brush part 20 drives the second roller brush part 30 to rotate around the first axis M through the connecting shaft 40.

[0058] It should be noted that the cleaning device 2 in the embodiment can be provided with a single motor 202 to drive the rotation of the two roller brush parts in the roller brush assembly, that is, the single motor 202 drives the rotation of the first roller brush part 20 in the roller brush assembly 1, and the first roller brush part 20 can drive the second roller brush part 30 to move synchronously through the connecting shaft 40, so that the installation space in the cleaning device 2 can be saved, and the design cost of the cleaning device 2 can be reduced.

[0059] In some embodiments of the present application, referring to Figure 6 , the cleaning device 2 further comprises a dust suction assembly 203, the dust suction assembly 203 has a dust suction cavity and a suction port 2031 in communication with the dust suction cavity, and the suction port 2031 is arranged corresponding to the interval between the first roller brush part 20 and the second roller brush part 30.

[0060] Specifically, the dust suction assembly 203 comprises a fan for air suction, the air inlet of the fan is in communication with the suction port 2031, and the air outlet of the fan is in communication with the dust suction cavity. When the roller brush assembly 1 sucks in hair during cleaning, the hair is gathered at the interval position between the first roller brush part 20 and the second roller brush part 30, and the fan absorbs the hair gathered at the interval position through the suction of the air inlet and collects the hair into the dust suction cavity for subsequent cleaning.

[0061] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar parts; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation of the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

[0062] The above is only a preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A roller brush assembly, characterized in that, include: support; The first roller brush is rotatably connected to the bracket. The first roller brush is rotatable relative to the bracket about a first axis. The first brush bristles are provided on the periphery of the first roller brush and are arranged in a spiral around the periphery of the first roller brush. The second roller brush portion is arranged at intervals with the first roller brush portion along the length direction of the first axis. The second roller brush portion is rotatably connected to the bracket. The second roller brush portion can rotate relative to the bracket around the first axis. The axis of the first roller brush portion, the axis of the second roller brush portion and the first axis coincide. The second roller brush portion is provided with second bristles on its peripheral side. The second bristles are arranged in a spiral around the circumference of the second roller brush portion. A connecting shaft is provided, which is capable of telescoping and extending relative to the first roller brush portion along the length direction of the first axis, so that the connecting shaft contacts and separates from the second roller brush portion. When the connecting shaft contacts the second roller brush portion, the second roller brush portion can rotate synchronously with the first roller brush portion.

2. The roller brush assembly according to claim 1, characterized in that, The first roller brush portion has a suspended end near the second roller brush portion, and the suspended end has a receiving groove for accommodating the connecting shaft. The connecting shaft can move along the length direction of the first axis to enter and exit the receiving groove.

3. The roller brush assembly according to claim 2, characterized in that, The inner wall of the receiving groove is provided with a first contact portion, and the circumference of the connecting shaft is provided with a second contact portion. The first contact portion contacts the second contact portion to prevent the connecting shaft from rotating about the first axis relative to the first roller brush portion.

4. The roller brush assembly according to claim 1, characterized in that, The first roller brush portion has a mounting end located away from the second roller brush portion, and the roller brush assembly further includes: A rotating part is connected to the mounting end. The rotating part is used to connect to an external motor and drive the first roller brush part to rotate around the first axis. A linkage rod, the first end of which is connected to the rotating part, and the second end of which is connected to the connecting shaft. The rotating part can also drive the linkage rod to rotate around the first axis, so that the linkage rod drives the connecting shaft to extend and retract along the length direction of the first axis.

5. The roller brush assembly according to claim 4, characterized in that, The second end of the linkage rod is provided with a protrusion; The connecting shaft is provided with a first groove extending along the length direction of the first axis. A guide groove extending in a spiral shape is provided on the inner side wall of the first groove. The second end of the linkage rod is disposed in the first groove, and the protrusion moves in the guide groove.

6. The roller brush assembly according to claim 1, characterized in that, The roller brush assembly also includes an elastic element, one end of which is connected to the first roller brush portion, and the other end of which is connected to the connecting shaft.

7. The roller brush assembly according to claim 1, characterized in that, The end of the second roller brush portion facing the first roller brush portion is provided with a insertion groove, and the end of the connecting shaft facing the second roller brush portion is provided with a insertion portion; When the connecting shaft begins to contact the second roller brush, the insertion part is inserted into the insertion slot so that the connecting shaft engages with the second roller brush.

8. The roller brush assembly according to claim 1, characterized in that, Along the extending direction of the connecting shaft, the spiral direction of the first bristles is opposite to that of the second bristles.

9. The roller brush assembly according to claim 1, characterized in that, The orthographic projection of the first bristle on the connecting shaft partially overlaps with the orthographic projection of the second bristle on the connecting shaft.

10. A cleaning device, characterized in that, The device includes a housing, a motor, and a roller brush assembly as described in any one of claims 1 to 9. The roller brush assembly and the motor are both disposed in the housing. The motor is connected to the first roller brush portion. The motor is used to drive the first roller brush portion to rotate around the first axis and to drive the connecting shaft to extend and retract along the length direction of the first axis.

11. The cleaning apparatus according to claim 10, characterized in that, The cleaning device further includes a vacuuming assembly, which has a vacuuming chamber and a suction port communicating with the vacuuming chamber. The suction port is spaced at intervals corresponding to the first roller brush and the second roller brush.

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