Rolling brush and cleaning equipment

Abstract

The embodiment of the utility model provides a rolling brush and cleaning equipment, and relates to the technical field of cleaning. The rolling brush comprises a rolling brush shaft and a cleaning part. The rolling brush shaft is used for rotating relative to the equipment body, the rolling brush shaft is provided with a preset area corresponding to suction of a dust suction opening of the equipment body, at least one side, in the axial direction of the rolling brush shaft, of the preset area is correspondingly provided with a cleaning part, the cleaning part comprises a first brush connected with the rolling brush shaft, and the first brush is used for cleaning a cleaned object; the working end of the first brush at least inclines towards the preset area in the axial direction of the rolling brush shaft. The rolling brush is beneficial for reducing the possibility of hair winding on the first brush.

Description

Technical Field

[0001] This application relates to the field of cleaning technology, and particularly relates to a rolling brush and a cleaning device. Background Art

[0002] To better meet the need for cleaning the floor at home, cleaning devices, such as cleaning robots, have gradually entered people's homes. However, in related technologies, during the cleaning process of the rolling brush of the cleaning device, hair is wound around the rolling brush and it is difficult to separate from the rolling brush. Utility Model Content

[0003] In view of this, embodiments of this application are expected to provide a rolling brush and a cleaning device, aiming to reduce the possibility of hair winding on the first brush.

[0004] To achieve the above object, the technical solution of the embodiments of this application is realized as follows:

[0005] The first aspect of the embodiments of this application provides a rolling brush, including:

[0006] A rolling brush shaft for rotating relative to the device body, and the rolling brush shaft has a preset area corresponding to the dust suction port of the device body;

[0007] A cleaning part, the cleaning part is correspondingly arranged on at least one side of the preset area along the axial direction of the rolling brush shaft, the cleaning part includes a first brush connected to the rolling brush shaft, the first brush is used to clean the object to be cleaned, and the working end of the first brush is at least inclined towards the preset area along the axial direction of the rolling brush shaft.

[0008] In one embodiment, the cleaning parts are arranged on opposite sides of the preset area along the axial direction of the rolling brush shaft.

[0009] In one embodiment, the cleaning part further includes a guiding strip connected to the rolling brush shaft, the guiding strip is used to support the first brush along the circumferential direction of the rolling brush shaft during the rotation of the rolling brush shaft, and the guiding strip and the first brush are arranged in a circumferential arrangement along the rolling brush shaft.

[0010] In one embodiment, the distance between the end face of the working end of the guiding strip and the central axis of the rolling brush shaft is a preset distance, and from the direction in which the guiding strip points along the axial direction of the rolling brush shaft to the preset area, the preset distance gradually decreases.

[0011] In one embodiment, when the rolling brush is in a non-working state, the distance between the end of the working end of the first brush and the central axis of the rolling brush shaft is greater than the preset distance.

[0012] In one embodiment, the guide strips and the first brushes are alternately arranged along the circumferential direction of the roller brush shaft, and when the roller brush is in a non-working state, the guide strips and the first brushes are arranged at intervals.

[0013] In one embodiment, the guide strip is made of a flexible material, and the roller brush further comprises a support member connected to the roller brush shaft, and the support member abuts against the corresponding guide strip along the circumferential direction of the roller brush shaft.

[0014] In one embodiment, the support member is located at an end of the guide strip that is away from the preset area along the axial direction of the roller brush shaft.

[0015] In one embodiment, the support member and the guide strip are alternately arranged along the circumference of the roller brush shaft, the support member abuts against the corresponding guide strip on opposite sides along the circumference of the roller brush shaft, and the first brush is located between the support member and the preset area.

[0016] In one embodiment, the roller brush shaft includes at least two sub-shaft segments, at least two of the sub-shaft segments are arranged in sequence along the axial direction of the sub-shaft segments, each of the sub-shaft segments is used to rotate relative to the device body, each of the sub-shaft segments is connected to the cleaning part, the preset area is located between two adjacent sub-shaft segments, and the two adjacent sub-shaft segments are spaced apart by a preset distance.

[0017] In one embodiment, the opposite ends of the roller brush shaft are used to be rotatably mounted on the equipment body, and the roller brush shaft extends from one of the opposite ends of the roller brush shaft to the other end, and the preset area is an annular groove surrounding the roller brush shaft along the circumference of the roller brush shaft.

[0018] In one embodiment, the roller brush also includes a protective brush connected to the roller brush shaft, wherein the protective brush is used to contact the cavity wall of the roller brush cavity of the equipment body, and the protective brush is provided at at least one end of the roller brush shaft, and the first brush is located on the side of the protective brush along the axial direction of the roller brush shaft toward the preset area.

[0019] In one embodiment, the protective brushes are disposed at both ends of the roller brush shaft, and the first brush and the preset area are located between the protective brushes at both ends.

[0020] In one embodiment, the protective brush is a second brush, the roller brush shaft is formed with a hair planting hole, the protective brush is partially installed in the hair planting hole, and the working end of the protective brush is inclined away from the first brush along the axial direction of the roller brush shaft.

[0021] In one embodiment, the angle between the second brush and the central axis of the roller brush shaft is 40° to 60°.

[0022] In one embodiment, the number of the implanting pores at each end is at least two, and at least two of the implanting pores at each end are arranged at intervals along the circumferential direction of the roller brush shaft.

[0023] In one embodiment, the roller brush shaft has a groove, the groove surrounds the roller brush shaft along the circumferential direction of the roller brush shaft, and each end of the protective brush is partially located in the corresponding groove, and the protective brush is glued to the roller brush shaft.

[0024] In the second aspect of the embodiments of the present application, a cleaning device includes:

[0025] A device body having a dust suction port;

[0026] A dust suction device installed on the device body, and the dust suction device is used for sucking the dust suction port;

[0027] A driving member installed on the device body;

[0028] The roller brush described in the foregoing embodiment, the roller brush shaft is rotatably connected to the device body, and the driving member drives the roller brush shaft to rotate.

[0029] In one embodiment, the device body has a roller brush cavity for accommodating the roller brush. The roller brush further includes a protective brush connected to the roller brush shaft. At least one end of the roller brush shaft is provided with the protective brush. The first brush is located on one side of the protective brush along the axial direction of the roller brush shaft facing the preset area, and the protective brush contacts the cavity wall of the roller brush cavity.

[0030] In one embodiment, protective brushes are provided at both ends of the roller brush shaft, and the first brush and the preset area are both located between the protective brushes at both ends.

[0031] In one embodiment, the cavity wall of the roller brush cavity has a first contact surface and a second contact surface arranged crosswise. The second contact surface surrounds the outside of the first contact surface, and each end of the protective brush contacts the corresponding first contact surface and the corresponding second contact surface.

[0032] In one embodiment, the device body includes a main body and an end cover. The main body and the end cover enclose the roller brush cavity. The main body is connected with the end cover at both opposite ends along the roller brush shaft. The roller brush shaft is rotatably connected to the end cover, and the first contact surface and the second contact surface are both formed on the end cover.

[0033] In one embodiment, the protective brush is a second brush, the roller brush shaft is formed with implanting pores, and the protective brush is partially installed in the implanting pores, and the implanting pores are located between the two end covers.

[0034] In one embodiment, the angle between the second brush and the central axis of the roller brush shaft is 40° to 60°.

[0035] In one embodiment, the number of the planting pores at each end is at least two, and at least two planting pores at each end are arranged at intervals along the circumferential direction of the roller brush shaft.

[0036] In one embodiment, the roller brush shaft has a groove, the groove surrounds the roller brush shaft along the circumferential direction of the roller brush shaft, and the protective brush at each end is partially located in the corresponding groove, and the protective brush is glued to the roller brush shaft.

[0037] In one embodiment, the cleaning device includes a cutting device, the cutting device is installed on the roller brush shaft or the device body, and the cutting device is located on one side of the corresponding cleaning part facing the preset area.

[0038] The third aspect of the embodiments of the present application provides a cleaning device, including:

[0039] A device body having a dust suction port;

[0040] A dust suction device installed on the device body, and the dust suction device is used for sucking the dust suction port;

[0041] A driving member installed on the device body;

[0042] According to the roller brush described in any one of the foregoing embodiments, the roller brush shaft is rotatably connected to the device body, and the driving member drives the roller brush shaft to rotate.

[0043] The fourth aspect of the embodiments of the present application provides a roller brush, including:

[0044] A roller brush shaft for rotating relative to the device body;

[0045] A cleaning part, the cleaning part includes a first brush connected to the roller brush shaft, and the first brush is used for cleaning the object to be cleaned;

[0046] A protective brush is arranged to contact the wall of the roller brush cavity of the device body, the protective brush is connected to the roller brush shaft, at least one end of the roller brush shaft is provided with the protective brush, and the first brush is located on one side of the corresponding protective brush along the axial direction of the roller brush shaft.

[0047] In one embodiment, the protective brushes are arranged at both ends of the roller brush shaft, and the first brush is located between the protective brushes at both ends.

[0048] In one embodiment, the protective brush is a second brush, the roller brush shaft is formed with planting pores, the protective brush is partially installed in the planting pores, and the working end of the protective brush inclines away from the first brush along the axial direction of the roller brush shaft.

[0049] In one embodiment, the angle between the second brush and the central axis of the roller brush shaft is 40° to 60°.

[0050] In one embodiment, the number of the implanting pores at each end is at least two, and at least two implanting pores at each end are arranged at intervals in the circumferential direction of the roller brush shaft.

[0051] In one embodiment, the roller brush shaft has a groove, the groove surrounds the roller brush shaft in the circumferential direction of the roller brush shaft, and each end of the protective brush is partially located in the corresponding groove, and the protective brush is glued to the roller brush shaft.

[0052] In one embodiment, the roller brush shaft has a preset area corresponding to the suction of the dust suction port of the equipment body. The roller brush shaft includes at least two sub-shaft segments arranged at intervals in sequence. At least two sub-shaft segments are arranged at intervals in sequence along the axial direction of the sub-shaft segments. Each sub-shaft segment is used for rotating relative to the equipment body. The preset area is located between two adjacent sub-shaft segments, and two adjacent sub-shaft segments are spaced apart by a preset distance.

[0053] A fifth aspect of the embodiments of the present application provides a cleaning device, including:

[0054] An equipment body having a roller brush cavity;

[0055] A driving member installed on the equipment body;

[0056] The roller brush according to the foregoing embodiment, the roller brush cavity is used to accommodate the roller brush, the roller brush shaft is rotationally connected to the equipment body, the driving member drives the roller brush shaft to rotate, and the protective brush contacts the cavity wall of the roller brush cavity.

[0057] In one embodiment, the cavity wall of the roller brush cavity has a first contact surface and a second contact surface arranged crosswise. The second contact surface surrounds the outside of the first contact surface, and each end of the protective brush contacts the corresponding first contact surface and the corresponding second contact surface.

[0058] In one embodiment, the equipment body includes a main body and an end cover. The main body and the end cover enclose the roller brush cavity. The main body is connected with the end cover at both opposite ends along the roller brush shaft. The roller brush shaft is rotationally connected with the end cover, and both the first contact surface and the second contact surface are formed on the end cover.

[0059] In one embodiment, the protective brush is a second brush, the roller brush shaft is formed with implanting pores, and the protective brush is partially installed in the implanting pores, and the implanting pores are located between the two end covers.

[0060] In one embodiment, the angle between the second brush and the central axis of the roller brush shaft is 40° to 60°.

[0061] In one embodiment, the number of the planting pores at each end is at least two, and at least two planting pores at each end are arranged at intervals along the circumferential direction of the roller brush shaft.

[0062] The sixth aspect of the embodiments of the present application provides a cleaning device, including:

[0063] A device body having a roller brush cavity;

[0064] A driving member installed on the device body;

[0065] The roller brush according to any one of the foregoing embodiments, the roller brush cavity is used to accommodate the roller brush, the roller brush shaft is rotatably connected to the device body, the driving member drives the roller brush shaft to rotate, and the protective brush contacts the cavity wall of the roller brush cavity.

[0066] The seventh aspect of the embodiments of the present application provides a roller brush, including:

[0067] A roller brush shaft having a preset area corresponding to the dust suction port of the device body, the roller brush shaft includes at least two sub-shaft segments arranged at intervals in sequence, at least two sub-shaft segments are arranged at intervals in sequence along the axial direction of the sub-shaft segments, each sub-shaft segment is used to rotate relative to the device body, the preset area is located between two adjacent sub-shaft segments, and two adjacent sub-shaft segments are spaced apart by a preset distance;

[0068] A cleaning part, and each sub-shaft segment is connected with the cleaning part.

[0069] The eighth aspect of the embodiments of the present application provides a cleaning device, including:

[0070] A device body having a dust suction port;

[0071] A dust suction device installed on the device body, and the dust suction device is used to suck the dust suction port;

[0072] A driving member installed on the device body;

[0073] The roller brush according to the foregoing embodiments, each sub-shaft segment is rotatably connected to the device body, and the driving member drives the sub-shaft segment to rotate.

[0074] The roller brush provided by the embodiment of the present application is configured such that at least the working end of the first brush is inclined towards a preset area along the axial direction of the roller brush axis. When hair on the ground winds around the roller brush, under the action of the suction airflow at the suction port of the device body, the resistance for the hair to move towards the preset area along the axial direction of the roller brush axis is reduced, making it easier for the hair to move towards the preset area along the axial direction of the roller brush axis. Subsequently, it can be better sucked into the device body through the suction port, which helps reduce the possibility of hair winding around the roller brush, and thus helps improve the continuous cleaning ability of the roller brush for hair on the ground. Description of the Drawings

[0075] Figure 1 is an exploded view of a cleaning device in an embodiment of the present application;

[0076] Figure 2 is a schematic structural view of a cross-section of a cleaning device along the radial direction of the roller brush in an embodiment of the present application;

[0077] Figure 3 is a schematic structural view of a cross-section of a cleaning device along the axial direction of the roller brush in an embodiment of the present application;

[0078] Figure 4 is a schematic structural view of a cross-section of a cleaning device along the axial direction of the roller brush in an embodiment of the present application;

[0079] Figure 5 is a schematic structural view of a cross-section of a cleaning device along the axial direction of the roller brush in an embodiment of the present application;

[0080] Figure 6 is a schematic structural view of a cleaning device from a certain perspective in an embodiment of the present application;

[0081] Figure 7 is an exploded view of a cleaning device in an embodiment of the present application;

[0082] Figure 8 is a schematic structural view of a cross-section of a cleaning device along the axial direction of the roller brush in an embodiment of the present application;

[0083] Figure 9 is Figure 8 the enlarged view at A in

[0084] Figure 10 is a schematic structural view of a roller brush from a certain perspective in an embodiment of the present application.

[0085] Description of the Reference Numerals

[0086] 1. Equipment body; 1a. Dust suction port; 11. Rotating brush cavity; 111. First contact surface; 112. Second contact surface; 12. End cover; 13. Main body; 2. Rotating brush; 21. Rotating brush shaft; 21a. Preset area; 21b. Bristle implantation holes; 21c. Groove; 211. Sub-shaft section; 22. Cleaning part; 221. First brush; 222. Guide strip; 23. Protective brush; 24. Support member; 3. Dust suction device; 4. Cutting device; 5. Driving member. Detailed implementation manners

[0087] The following further describes the implementation manners of the present application in detail with reference to the drawings and embodiments. The following embodiments are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0088] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "circumferential direction", "axial direction", "radial direction", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0089] In the description of this specification, the description referring to the term "one embodiment" means that the specific features, structures, materials or characteristics described in connection with that embodiment are included in at least one embodiment of the embodiments of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0090] In the related art, the rotating brush can rotate to clean the garbage on the ground. When there is a lot of long hair on the ground, the long hair is easily wound around the rotating brush, which hinders the rotation of the rotating brush to clean the ground, resulting in a decrease in the cleaning ability of the rotating brush. When too much hair is wound around the rotating brush, it may even cause the rotating brush to stop rotating, and the user needs to clean it manually before it can continue to be used normally, resulting in an unsatisfactory continuous cleaning ability of the rotating brush for the hair on the ground and easily causing a poor user experience for the user.

[0091] The first implementation manner:

[0092] In view of this, please refer to Figures 1 to 5, an embodiment of the present application provides a cleaning device, including a device body 1, a dust suction device 3, a driving member 5, and a roller brush 2. The device body 1 has a dust suction port 1a, the dust suction device 3 is installed on the device body 1, the dust suction device 3 is used to suck the dust suction port 1a, the driving member 5 is installed on the device body 1, the roller brush shaft 21 is rotatably connected to the device body 1, and the driving member 5 drives the roller brush shaft 21 to rotate.

[0093] Please refer to Figures 1 to 5 , an embodiment of the present application provides a roller brush 2, including a roller brush shaft 21 and a cleaning portion 22. The roller brush shaft 21 is used to rotate relative to the device body 1. The roller brush shaft 21 has a preset area 21a corresponding to the dust suction port 1a of the device body 1. At least one side of the preset area 21a along the axial direction of the roller brush shaft 21 is correspondingly provided with a cleaning portion 22. The cleaning portion 22 includes a first brush 221 connected to the roller brush shaft 21. The first brush 221 is used to clean the object to be cleaned, and the working end of the first brush 221 is at least inclined toward the preset area 21a along the axial direction of the roller brush shaft 21.

[0094] It should be noted that the roller brush shaft 21 having a preset area 21a corresponding to the dust suction port 1a of the device body 1 can be understood as that the plane passing through the preset area 21a and perpendicular to the axial direction of the roller brush shaft 21 is the reference plane. The reference plane passes through the dust suction port 1a, and the opening direction of the dust suction port 1a and the axial direction of the roller brush shaft 21 are arranged crosswise, which is convenient for the device body 1 to suck the hair collected in the preset area 21a through the dust suction port 1a.

[0095] Exemplarily, please refer to Figure 1 , the opening direction of the dust suction port 1a is perpendicular to the axial direction of the roller brush shaft 21.

[0096] It should be explained that, please refer to Figures 1 to 5 , the working end of the first brush 221 refers to the end of the first brush 221 that deviates from the roller brush shaft 21 along the radial direction of the roller brush shaft 21.

[0097] It should be noted that the working end of the first brush 221 is at least inclined toward the preset area 21a along the axial direction of the roller brush shaft 21. Under the action of the suction airflow of the dust suction port 1a of the device body 1, it is beneficial for the hair to move toward the preset area 21a along the axial direction of the roller brush shaft 21 and finally gather at the position of the preset area 21a, which is convenient for the hair to be sucked into the device body 1 through the dust suction port 1a.

[0098] Exemplarily, only the cleaning portion 22 is correspondingly provided on any one side of the preset area 21a along the axial direction of the roller brush shaft 21.

[0099] Exemplarily, the object to be cleaned can be the ground, or the hair on the ground, or the larger garbage attached to the ground.

[0100] In the embodiment of the present application, by inclining the working end of the first brush 221 at least along the axial direction of the roller brush shaft 21 towards the preset area 21a, when the hair on the ground is wound around the roller brush 2, under the suction airflow of the suction port 1a of the device body 1, the resistance of the hair moving along the axial direction of the roller brush shaft 21 towards the preset area 21a is reduced, and the hair is more likely to move along the axial direction of the roller brush shaft 21 towards the preset area 21a, and then can be better sucked into the device body 1 through the suction port 1a, which is beneficial to reducing the possibility of hair winding around the roller brush 2, and then is beneficial to improving the continuous cleaning ability of the roller brush 2 for the hair on the ground.

[0101] It can be understood that the shape of the first brush 221 is not limited, and it can be strip-shaped or spiral-shaped.

[0102] Exemplarily, the first brush 221 is strip-shaped, and a plurality of strip-shaped first brushes 221 on either side along the axial direction of the roller brush shaft 21 are evenly arranged in the circumferential direction of the roller brush shaft 21, and a plurality of first brushes 221 on the opposite sides along the axial direction of the roller brush shaft 21 of the preset area 21a are staggered and arranged at intervals along the axial direction of the roller brush shaft 21.

[0103] Exemplarily, please refer to Figure 1 and Figure 2 , three first brushes 221 are provided on both opposite sides along the axial direction of the roller brush shaft 21 of the preset area 21a, the three first brushes 221 on each side are evenly arranged in the circumferential direction of the roller brush shaft 21, and the three first brushes 221 on each side extend and are arranged in a spiral shape along the length direction of the roller brush shaft 21.

[0104] In one embodiment, please refer to Figure 1 , cleaning parts 22 are provided on both opposite sides along the axial direction of the roller brush shaft 21 of the preset area 21a.

[0105] In the embodiment of the present application, cleaning parts 22 are provided on both opposite sides along the axial direction of the roller brush shaft 21 of the preset area 21a, so that the preset area 21a is located between the cleaning parts 22 on both opposite sides along the axial direction of the roller brush shaft 21. The dimensions of the cleaning parts 22 on both sides along the axial direction of the roller brush shaft 21 are small, which is beneficial to reducing the distance for the entangled hair to move towards the suction port 1a, and then is beneficial to reducing the possibility of hair staying on the first brush 221, so as to improve the continuous cleaning ability of the roller brush 2.

[0106] In one embodiment, please refer to Figures 1 to 5 , the cleaning part 22 further includes a guiding strip 222 connected to the roller brush shaft 21, and the guiding strip 222 is used to support the first brush 221 in the circumferential direction of the roller brush shaft 21 during the rotation of the roller brush shaft 21, and the guiding strip 222 and the first brush 221 are arranged in the circumferential direction of the roller brush shaft 21.

[0107] It should be noted that the guiding strip 222 has a relatively hard texture and can be used to disturb larger garbage attached to the ground, facilitating the suction device 3 to suck it in through the suction port 1a.

[0108] In the embodiment of the present application, the guiding strip 222 is used to circumferentially support the first brush 221 along the circumferential direction of the brush roller shaft 21 during the rotation of the brush roller shaft 21. The guiding strip 222 and the first brush 221 are arranged along the circumferential direction of the brush roller shaft 21, so that the guiding strip 222 can radially support the first brush 221 along the brush roller shaft 21, thereby reducing the possibility of the first brush 221 collapsing during the process of cleaning the ground, and then facilitating the inclined first brush 221 to guide the hair towards the suction port 1a.

[0109] In one embodiment, please refer to Figure 1 , Figures 3 to 5 , the distance between the end face of the working end of the guiding strip 222 and the central axis of the brush roller shaft 21 is a preset distance, and the preset distance gradually decreases from the direction in which the guiding strip 222 axially points to the preset area 21a along the brush roller shaft 21.

[0110] It should be explained that, please refer to Figure 1 , the working end of the guiding strip 222 refers to the end of the guiding strip 222 that radially deviates from the brush roller shaft 21 along the brush roller shaft 21.

[0111] It can be understood that too much hair wound around the rotating brush roller 2 will tend to wind tighter and tighter, resulting in an increase in the resistance of the hair to move axially along the brush roller shaft 21 towards the preset area 21a under the action of the suction airflow at the suction port 1a of the device body 1, thereby increasing the possibility of hair winding around the brush roller 2, and the relatively hard guiding strip 222 can abut against the wound hair to slow down the trend of the hair winding tighter and tighter on the brush roller 2.

[0112] It can be understood that the guiding strip 222 can be spaced apart by a preset distance or continuous at the corresponding position of the preset area 21a along the axial direction of the brush roller shaft 21, that is, from the direction in which the guiding strip 222 axially points to the preset area 21a along the brush roller shaft 21, the preset distance can gradually decrease to a minimum value greater than zero, or can decrease to zero at the corresponding position of the preset area 21a.

[0113] In the embodiments of the present application, the working end of the relatively hard guiding strip 222 can abut against the hair wound around the roller brush 2 to slow down the trend of the hair becoming more and more tightly wound on the roller brush 2. Along the direction in which the guiding strip 222 points to the preset area 21a along the axial direction of the roller brush shaft 21, the preset distance gradually decreases, so that the resistance of the hair to move towards the preset area 21a under the action of the suction airflow at the dust suction port 1a of the device body 1 is reduced, and the hair can move more easily along the axial direction of the roller brush shaft 21 towards the preset area 21a. Subsequently, the hair can be more easily sucked into the device body 1 through the dust suction port 1a, which is beneficial to reducing the possibility of the hair being wound around the roller brush 2, and subsequently beneficial to improving the continuous cleaning ability of the roller brush 2 for the hair on the ground.

[0114] Exemplarily, please refer to Figure 1 、 Figures 3 to 5 , guiding strips 222 are provided on both opposite sides of the preset area 21a along the axial direction of the roller brush shaft 21.

[0115] In one embodiment, please refer to Figure 2 , when the roller brush 2 is in a non-working state, the distance between the end of the working end of the first brush 221 and the central axis of the roller brush shaft 21 is greater than the preset distance.

[0116] It should be explained that the roller brush 2 being in a non-working state means that the roller brush shaft 21 stops rotating and the first brush 221 is not in contact with the object to be cleaned.

[0117] It should be explained that the distance between the end of the working end of the first brush 221 and the central axis of the roller brush shaft 21 refers to the distance from the intersection line of the plane perpendicular to the axial direction of the roller brush shaft 21 and the end face of the working end of the first brush 221 to the central axis of the roller brush shaft 21.

[0118] In the embodiments of the present application, when the roller brush 2 is in a non-working state, the distance between the end of the working end of the first brush 221 and the central axis of the roller brush shaft 21 is greater than the preset distance, so that when the roller brush 2 is in a working state and the first brush 221 is cleaning the ground, the resistance between the guiding strip 222 and the ground is reduced, which is beneficial to enabling the roller brush 2 to rotate more smoothly.

[0119] It can be understood that when the roller brush 2 is in a non-working state, the size relationship between the distance between the end of the working end of the first brush 221 and the central axis of the roller brush shaft 21 and the preset distance may not be limited. Exemplarily, when the roller brush 2 is in a non-working state, the distance between the end of the working end of the first brush 221 and the central axis of the roller brush shaft 21 may be less than the preset distance.

[0120] In one embodiment, please refer to Figure 1 and Figure 2, the guide strips 222 and the first brush 221 are alternately arranged along the circumferential direction of the roller brush shaft 21. When the roller brush 2 is in a non-operating state, the guide strips 222 and the first brush 221 are arranged at intervals.

[0121] Exemplarily, the shape of the guide strip 222 is not limited. It can be strip-shaped or spiral-shaped.

[0122] Exemplarily, the guide strip 222 is strip-shaped. A plurality of strip-shaped guide strips 222 on either side of the preset area 21a along the axial direction of the roller brush shaft 21 are evenly arranged along the circumferential direction of the roller brush shaft 21, and are arranged at intervals along the circumferential direction of the roller brush shaft 21 with the strip-shaped first brush 221. A plurality of guide strips 222 on both sides of the preset area 21a along the axial direction of the roller brush shaft 21 are staggered and arranged at intervals along the axial direction of the roller brush shaft 21.

[0123] Exemplarily, please refer to Figure 1 and Figure 2 , three guide strips 222 are provided on both opposite sides of the preset area 21a along the axial direction of the roller brush shaft 21. The three guide strips 222 on each side are evenly arranged along the circumferential direction of the roller brush shaft 21. The three guide strips 222 on each side extend spirally along the length direction of the roller brush shaft 21, and are arranged at intervals along the circumferential direction of the roller brush shaft 21 with the spiral-shaped first brush 221.

[0124] In the embodiment of the present application, the guide strips 222 and the first brush 221 are alternately arranged along the circumferential direction of the roller brush shaft 21, and the guide strips 222 and the first brush 221 are arranged at intervals, so that when the roller brush 2 is in an operating state, the guide strips 222 can support the first brush 221 more evenly in the circumferential direction of the roller brush shaft 21, thereby reducing the possibility of the first brush 221 collapsing in the circumferential direction of the roller brush shaft 21.

[0125] In one embodiment, please refer to Figures 1 to 5 , the material of the guide strip 222 is a flexible material. The roller brush 2 further includes a support member 24 connected to the roller brush shaft 21, and the support member 24 abuts against the corresponding guide strip 222 along the circumferential direction of the roller brush shaft 21.

[0126] It should be noted that the material of the guide strip 222 is a flexible material, and the guide strip 222 can come into contact with the object to be cleaned and deform, so that the guide strip 222 can move past the object to be cleaned more smoothly during the rotation of the roller brush shaft 21.

[0127] In the embodiment of the present application, the support member 24 abuts against the corresponding guide strip 222 along the circumferential direction of the roller brush shaft 21, so that the support member 24 can provide a supporting force for the guide strip 222 to reduce the possibility of the guide strip 222 collapsing in the radial direction of the roller brush shaft 21.

[0128] In one embodiment, please refer to Figure 1 、Figures 3 to 5 , the support member 24 is located at one end of the guide strip 222 along the axial direction of the brush roller shaft 21 away from the preset area 21a.

[0129] In the embodiment of the present application, the preset distance at one end of the guide strip 222 along the axial direction of the brush roller shaft 21 away from the preset area 21a is relatively large, and it is more likely to be bent and deformed under the entanglement of a large amount of hair. A support member 24 is correspondingly provided at one end of each guide strip 222 along the axial direction of the brush roller shaft 21 away from the preset area 21a. The support member 24 abuts against the corresponding guide strip 222 along the circumferential direction of the brush roller shaft 21 to increase the stiffness of the guide strip 222 in the radial direction along the brush roller shaft 21 at the corresponding position, reducing the possibility of the guide strip 222 being bent and deformed due to the entanglement of a large amount of hair, enabling the guide strip 222 to abut against the hair wound on the brush roller 2, reducing the possibility of the first brush 221 at the corresponding position collapsing, and then enabling the hair to move smoothly along the axial direction of the brush roller shaft 21 towards the preset area 21a under the action of the suction airflow at the dust suction port 1a of the device body 1, which is beneficial to improving the continuous cleaning ability of the brush roller 2 for the hair on the ground.

[0130] It can be understood that the arrangement position of the support member 24 is not limited. Exemplarily, the support members 24 can also be arranged along the extension direction of the guide strip 222 to increase the overall stiffness of the guide strip 222 in the radial direction along the brush roller shaft 21.

[0131] In one embodiment, please refer to Figures 1 to 5 , the support member 24 and the guide strip 222 are alternately arranged along the circumferential direction of the brush roller shaft 21. The opposite sides of the support member 24 along the circumferential direction of the brush roller shaft 21 respectively abut against the corresponding guide strip 222, and the first brush 221 is located between the support member 24 and the preset area 21a.

[0132] In the embodiment of the present application, the corresponding support members 24 support both opposite sides of the guide strip 222 along the circumferential direction of the brush roller shaft 21, which is beneficial to further increasing the stiffness of the guide strip 222 in the radial direction along the brush roller shaft 21 at the corresponding position, and further reducing the possibility of the end of the guide strip 222 along the axial direction of the brush roller shaft 21 away from the preset area 21a collapsing due to the entanglement of a large amount of hair.

[0133] In one embodiment, please refer to Figure 6 and Figure 7 , the brush roller shaft 21 includes at least two sub-shaft segments 211. The at least two sub-shaft segments 211 are arranged at intervals in sequence along the axial direction of the sub-shaft segment 211. Each sub-shaft segment 211 is used for rotating relative to the device body 1, and each sub-shaft segment 211 is connected with a cleaning part 22. The preset area 21a is located between two adjacent sub-shaft segments 211, and the two adjacent sub-shaft segments 211 are spaced apart by a preset distance.

[0134] It should be noted that the adjacent two sub-axis segments 211 are spaced apart by a preset distance, which means that the ends of the two sub-axis segments 211 that are close to each other are not connected, and there is no additional connecting member to connect the ends of the two sub-axis segments 211 that are close to each other.

[0135] In the embodiment of the present application, under the action of the suction airflow at the suction port 1a of the device body 1, the hair can move axially along the sub-axis segment 211 towards the preset area 21a. The adjacent two sub-axis segments 211 are spaced apart by a preset distance, which is convenient for the hair to detach from the sub-axis segment 211, and thus is sucked into the device body 1 through the suction port 1a under the action of the suction airflow at the suction port 1a of the device body 1, which is beneficial to reducing the possibility of the hair being wound around the roller brush 2, and then is beneficial to improving the continuous cleaning ability of the cleaning device for the hair on the ground.

[0136] In one embodiment, please refer to Figure 1 、 Figures 3 to 5 , both opposite ends of the roller brush shaft 21 are used for rotatably mounting on the device body 1. The roller brush shaft 21 extends from one of the opposite ends of the roller brush shaft 21 to the other end. The preset area 21a is an annular groove surrounding the roller brush shaft 21 along the circumferential direction of the roller brush shaft 21.

[0137] Exemplarily, the roller brush shaft 21 can be an integrally formed through shaft, or a through shaft formed by connecting two sub-axis segments 211 together, and the two ends of the through shaft formed by the two sub-axis segments 211 rotate synchronously.

[0138] In the embodiment of the present application, the roller brush shaft 21 extends from one of the opposite ends of the roller brush shaft 21 to the other end, so that the roller brush shaft 21 is a through shaft continuously extending along its own axis, and the rotational stability of the roller brush shaft 21 is better. The preset area 21a is an annular groove surrounding the roller brush shaft 21 along the circumferential direction of the roller brush shaft 21. The hair will gather in the preset area 21a which is an annular groove under the action of the suction airflow at the suction port 1a of the device body 1, which is also beneficial to the hair detaching from the roller brush shaft 21 to a certain extent.

[0139] In one embodiment, please refer to Figures 8 to 10 , the roller brush 2 further includes a protective brush 23 connected to the roller brush shaft 21. The protective brush 23 is arranged to contact the wall of the roller brush cavity 11 of the device body 1. At least one end of the roller brush shaft 21 is provided with the protective brush 23, and the first brush 221 is located on the side of the protective brush 23 facing the preset area 21a along the axis of the roller brush shaft 21.

[0140] Exemplarily, the guiding strip 222 can be partially located on the side of the protective brush 23 facing away from the preset area 21a.

[0141] It should be noted that as the rotary brush 2 rotates relative to the device body 1, there will be a certain gap between the rotary brush 2 and the device body 1, that is, the rotary brush 2 rotates within the rotary brush cavity 11 of the device body 1, and there is a certain gap between the rotary brush 2 and the cavity wall of the rotary brush cavity 11 to ensure the normal operation of the rotary brush 2. This makes it possible for the hair wound around both ends of the rotary brush 2 to spread outward through the gap to the outside of the rotary brush cavity 11. If the hair spreads to the outside of the rotary brush cavity 11, it is difficult to be sucked into the device body 1 through the dust suction port 1a, and it will also be wound around the rotating connection between the rotary brush shaft 21 and the device body 1, thereby increasing the resistance of the rotary brush 2 to rotate, and even causing the rotary brush 2 to be unable to rotate.

[0142] It can be understood that when the rotary brush 2 is stationary relative to the device body 1, one end of the protective brush 23 along the radial direction of the rotary brush shaft 21 away from the rotary brush shaft 21 contacts the cavity wall of the rotary brush cavity 11; when the rotary brush 2 rotates relative to the device body 1, the protective brush 23 can continuously sweep across the cavity wall of the rotary brush cavity 11 to reduce the risk of hair spreading outward through the gap to the outside of the rotary brush cavity 11, thereby reducing the accumulation of hair at the rotating connection between the rotary brush shaft 21 and the device body 1.

[0143] It can be understood that the bristles of the protective brush 23 are relatively soft, and when the rotary brush 2 rotates, the frictional force between the protective brush 23 and the cavity wall of the rotary brush cavity 11 has a relatively small impact on the rotation of the rotary brush 2.

[0144] In the embodiment of the present application, one end of the protective brush 23 along the radial direction of the rotary brush shaft 21 away from the rotary brush shaft 21 contacts the cavity wall of the rotary brush cavity 11, so that the protective brush 23 can support the hair wound around both ends of the rotary brush 2, thereby reducing the possibility of the hair spreading to the outside of the rotary brush cavity 11, which is beneficial to ensuring the normal rotation of the rotary brush 2, and thus beneficial to improving the continuous cleaning ability of the rotary brush 2 for the hair on the ground.

[0145] In one embodiment, please refer to Figures 8 to 10 , protective brushes 23 are provided at both ends of the rotary brush shaft 21, and the first brush 221 and the preset area 21a are both located between the protective brushes 23 at both ends.

[0146] In the embodiment of the present application, protective brushes 23 are provided at both ends of the rotary brush shaft 21, and the first brush 221 and the preset area 21a are both located between the protective brushes 23 at both ends, further reducing the possibility of the hair spreading to the outside of the rotary brush cavity 11, which is beneficial to ensuring the normal rotation of the rotary brush 2, and thus beneficial to improving the continuous cleaning ability of the rotary brush 2 for the hair on the ground.

[0147] In one embodiment, please refer to Figure 9 , the protective brush 23 is a second brush, the rotary brush shaft 21 is formed with planting pores 21b, the protective brush 23 is partially installed in the planting pores 21b, and the working end of the protective brush 23 is inclined away from the first brush 221 along the axial direction of the rotary brush shaft 21.

[0148] It should be noted that the working end of the protective brush 23 refers to the end of the protective brush 23 that radially deviates from the brush roller shaft 21 along the radial direction of the brush roller shaft 21.

[0149] It should be noted that the aperture of the implanting pore 21b is relatively small. During the process of implanting the protective brush 23 into the implanting pore 21b, it is necessary to drill holes in the brush roller shaft 21 to form the implanting pore 21b. If the implanting pore 21b is too close to the two ends of the brush roller shaft 21, the brush roller shaft 21 may be damaged during the drilling process.

[0150] Exemplarily, one end of the protective brush 23 that radially approaches the brush roller shaft 21 along the radial direction of the brush roller shaft 21 is implanted into the implanting pore 21b, and one end of the protective brush 23 that radially deviates from the brush roller shaft 21 along the radial direction of the brush roller shaft 21 contacts the cavity wall of the brush roller cavity 11.

[0151] In the embodiment of the present application, the working end of the protective brush 23 is inclined away from the first brush 221 along the axial direction of the brush roller shaft 21, so that there is a certain safety distance between the implanting pore 21b and the edges of the two axial ends of the brush roller shaft 21, thereby reducing the possibility of damage to the brush roller shaft 21 during the process of implanting the protective brush 23 into the brush roller shaft 21, which is beneficial to improving the yield rate of the brush roller shaft 21.

[0152] In one embodiment, please refer to Figures 8 to 10 , the included angle between the second brush and the central axis of the brush roller shaft 21 is 40° to 60°.

[0153] Exemplarily, Figure 9 the angle R shown in is the included angle between the second brush and the central axis of the brush roller shaft 21.

[0154] Exemplarily, the included angle between the second brush and the central axis of the brush roller shaft 21 can be 40°, or 50°, or 60°.

[0155] In the embodiment of the present application, the included angle between the second brush and the central axis of the brush roller shaft 21 is 40° to 60°. On the one hand, it makes one end of the second brush that radially approaches the brush roller shaft 21 along the radial direction of the brush roller shaft 21 closer to the preset area 21a along the axial direction of the brush roller shaft 21 relative to the target end of the second brush, and then there is a certain safety distance between the implanting pore 21b and the edges of the two axial ends of the brush roller shaft 21, thereby reducing the possibility of damage to the brush roller shaft 21 during the process of implanting the protective brush 23 into the brush roller shaft 21, which is beneficial to improving the yield rate of the brush roller shaft 21; on the other hand, the second brush can support the hair wound around both ends of the brush roller 2, and then reduce the possibility of the hair spreading to the outside of the brush roller cavity 11, which is beneficial to ensuring the normal rotation of the brush roller 2, and then beneficial to improving the continuous cleaning ability of the brush roller 2 for the hair on the ground.

[0156] In one embodiment, please refer to Figures 8 to 10, the number of hair planting holes 21b at each end is at least two, and at least two hair planting holes 21b at each end are arranged at intervals along the circumferential direction of the roller brush shaft 21.

[0157] Exemplarily, please refer to Figure 10 , the number of hair planting holes 21b at each end is three, and three hair planting holes 21b at each end are arranged at uniform intervals along the axial direction of the roller brush shaft 21.

[0158] In the embodiment of the present application, at least two hair planting holes 21b arranged at intervals along the axial direction of the roller brush shaft 21 correspond to at least two second bristles, so that the second bristles can better support the hair wound around both ends of the roller brush shaft 21, reducing the possibility of hair moving towards both ends and spreading to the outside of the roller brush cavity 11, facilitating the normal rotation of the roller brush 2, and thus being beneficial to improving the continuous cleaning ability of the roller brush 2 for the hair on the ground.

[0159] It can be understood that the number of hair planting holes 21b is not limited. Exemplarily, the number of hair planting holes 21b can be one.

[0160] In one embodiment, please refer to Figures 3 to 5 , the roller brush shaft 21 has a groove 21c, the groove 21c surrounds the roller brush shaft 21 along the circumferential direction of the roller brush shaft 21, and a part of the protective brush 23 at each end is located in the corresponding groove 21c, and the protective brush 23 is glued to the roller brush shaft 21.

[0161] It should be noted that the groove 21c can be integrally formed with the roller brush shaft 21 without further processing after the roller brush shaft 21 is manufactured.

[0162] It can be understood that the number of protective brushes 23 arranged in the groove 21c is not limited. A plurality of protective brushes 23 arranged at intervals can be arranged in the groove 21c along the circumferential direction of the roller brush shaft 21 of the roller brush 2 body, or the bristles of the protective brush 23 can be evenly arranged in the groove 21c.

[0163] Exemplarily, the protective brush 23 is evenly glued in the groove 21c so that the protective brush 23 surrounds the roller brush shaft 21 to close the gap between the roller brush 2 and the wall of the roller brush cavity 11.

[0164] In the embodiment of the present application, the groove 21c is integrally formed with the roller brush shaft 21. The groove 21c can be prefabricated in advance, so that the roller brush shaft 21 does not need to be processed and drilled again. The protective brush 23 can be directly bonded in the groove 21c of the roller brush shaft 21, reducing the processing procedures of the cleaning device, facilitating the installation of the protective brush 23, and being beneficial to reducing the processing difficulty and processing cost of the roller brush 2.

[0165] In one embodiment, please refer to Figures 8 to 9, the device body 1 has a brush roller cavity 11 for accommodating the brush roller 2. The brush roller 2 further includes a protective brush 23 connected to the brush roller shaft 21. The protective brush 23 is provided at at least one end of the brush roller shaft 21. The first brush 221 is located on one side of the protective brush 23 along the axial direction of the brush roller shaft 21 facing the preset area 21a. The protective brush 23 contacts the cavity wall of the brush roller cavity 11.

[0166] In the embodiment of the present application, the protective brush 23 contacts the cavity wall of the brush roller cavity 11, and the first brush 221 is located on one side of the protective brush 23 along the axial direction of the brush roller shaft 21 facing the preset area 21a, so that the protective brush 23 can be arranged at both axial ends of the brush roller shaft 21, and then the protective brush 23 can support the hair wound at both ends of the brush roller 2, thereby reducing the possibility of hair spreading to the outside of the brush roller cavity 11, which is beneficial to ensuring the normal rotation of the brush roller 2, and then beneficial to improving the continuous cleaning ability of the cleaning device for the hair on the ground.

[0167] In one embodiment, please refer to Figures 8 to 10 , protective brushes 23 are provided at both ends of the brush roller shaft 21, and the first brush 221 and the preset area 21a are both located between the protective brushes 23 at both ends.

[0168] In the embodiment of the present application, protective brushes 23 are provided at both ends of the brush roller shaft 21, and the first brush 221 and the preset area 21a are both located between the protective brushes 23 at both ends, further reducing the possibility of hair spreading to the outside of the brush roller cavity 11, which is beneficial to ensuring the normal rotation of the brush roller 2, and then beneficial to improving the continuous cleaning ability of the cleaning device for the hair on the ground.

[0169] In one embodiment, please refer to Figure 9 , the cavity wall of the brush roller cavity 11 has a first contact surface 111 and a second contact surface 112 arranged in a cross shape. The second contact surface 112 surrounds the outside of the first contact surface 111. Each end of the protective brush 23 contacts the corresponding first contact surface 111 and the corresponding second contact surface 112.

[0170] Exemplarily, please refer to Figure 9 , the first contact surface 111 and the second contact surface 112 can be arranged perpendicular to each other.

[0171] In the embodiments of the present application, the first contact surface 111 and the second contact surface 112 are arranged to intersect with each other, the second contact surface 112 surrounds the outside of the first contact surface 111, and each end protection brush 23 contacts the corresponding first contact surface 111 and the corresponding second contact surface 112. So that the hair wound around both ends of the roller brush 2 needs to first move axially along the roller brush shaft 21 on the second contact surface 112 to the first contact surface 111, and then change direction and move radially along the roller brush shaft 21 on the first contact surface 111 to move outside the roller brush cavity 11. This increases the difficulty for the hair to spread to the outside of the roller brush cavity 11, improves the blocking effect of the cavity wall of the roller brush cavity 11 on the hair, further reduces the possibility of the hair spreading to the outside of the roller brush cavity 11, and is beneficial to improving the continuous cleaning ability of the cleaning device for the hair on the ground.

[0172] In one embodiment, please refer to Figure 9 , the device body 1 includes a main body 13 and an end cap 12. The main body 13 and the end cap 12 enclose a roller brush cavity 11. Both opposite ends of the main body 13 along the roller brush shaft 21 are connected with end caps 12. The roller brush shaft 21 is rotatably connected with the end caps 12. The first contact surface 111 and the second contact surface 112 are both formed on the end cap 12.

[0173] In the embodiments of the present application, the main body 13 and the end cap 12 enclose a roller brush cavity 11. The roller brush shaft 21 is rotatably connected with the end cap 12. The first contact surface 111 and the second contact surface 112 are both formed on the end cap 12, so that the first contact surface 111 protruding radially into the roller brush cavity 11 along the roller brush shaft 21 is located outside the main body 13 along the axial direction of the roller brush shaft 21. When the end cap 12 is disassembled from the main body 13, it is beneficial to improve the convenience of installing the roller brush 2.

[0174] In one embodiment, please refer to Figures 8 to 10 , the protection brush 23 is a second brush. The roller brush shaft 21 is formed with planting pores 21b. The protection brush 23 is partially installed in the planting pores 21b. The planting pores 21b are located between the two end caps 12.

[0175] In the embodiments of the present application, the planting pores 21b are located between the two end caps 12, so that the working end of the protection brush 23 can be inclined away from the first brush 221 along the axial direction of the roller brush shaft 21, so that there is a certain safety distance between the planting pores 21b and the edges of both axial ends of the roller brush shaft 21, so as to reduce the possibility of the roller brush shaft 21 being damaged during the process of implanting the protection brush 23 into the roller brush shaft 21, which is beneficial to improving the yield rate of the roller brush shaft 21.

[0176] In one embodiment, please refer to Figure 9 , the included angle between the second brush and the central axis of the roller brush shaft 21 is 40° - 60°.

[0177] In the embodiment of the present application, the included angle between the second brush and the central axis of the roller brush shaft 21 is 40° - 60°. On the one hand, it makes the end of the second brush close to the roller brush shaft 21 along the radial direction of the roller brush shaft 21 closer to the preset area 21a along the axial direction of the roller brush shaft 21. Subsequently, there is a certain safety distance between the hair implantation holes 21b and the edges at both axial ends of the roller brush shaft 21, so as to reduce the possibility of damage to the roller brush shaft 21 during the process of implanting the protective brush 23 into the roller brush shaft 21, which is beneficial to improving the yield rate of the roller brush shaft 21. On the other hand, the second brush can support the hair wound around both ends of the roller brush 2, and then reduce the possibility of the hair spreading to the outside of the roller brush cavity 11, which is beneficial to ensuring the normal rotation of the roller brush 2, and then beneficial to improving the continuous cleaning ability of the roller brush 2 for the hair on the ground.

[0178] In one embodiment, please refer to Figure 9 and Figure 10 , the number of hair implantation holes 21b at each end is at least two, and at least two hair implantation holes 21b at each end are arranged at intervals along the circumferential direction of the roller brush shaft 21.

[0179] In the embodiment of the present application, at least two hair implantation holes 21b arranged at intervals along the axial direction of the roller brush shaft 21 correspond to at least two second bristles, so that the second bristles can better support the hair wound around both ends of the roller brush shaft 21, so as to reduce the possibility of the hair moving to both ends and spreading to the outside of the roller brush cavity 11, facilitating the normal rotation of the roller brush 2, and then beneficial to improving the continuous cleaning ability of the roller brush 2 for the hair on the ground.

[0180] In one embodiment, please refer to Figures 3 to 5 , the roller brush shaft 21 has a groove 21c, the groove 21c surrounds the roller brush shaft 21 along the circumferential direction of the roller brush shaft 21, and part of each protective brush 23 is located in the corresponding groove 21c, and the protective brush 23 is glued to the roller brush shaft 21.

[0181] In the embodiment of the present application, the groove 21c is integrally formed with the roller brush shaft 21, and the groove 21c can be prefabricated in advance, so that the roller brush shaft 21 does not need to be processed and drilled again, and the protective brush 23 can be directly bonded into the groove 21c of the roller brush shaft 21, so as to reduce the processing procedures of the cleaning device, facilitate the installation of the protective brush 23, and is beneficial to reducing the processing difficulty and processing cost of the roller brush 2.

[0182] In one embodiment, please refer to Figure 1 , Figures 3 to 5 , the cleaning device includes a cutting device 4, the cutting device 4 is installed on the roller brush shaft 21 or the device body 1, and the cutting device 4 is located on the side of the corresponding cleaning part 22 facing the preset area 21a.

[0183] Exemplarily, please refer to Figure 3, the cutting device 4 is a blade, which is arranged on the roller brush shaft 21 at the corresponding position of the preset area 21a. The number of blades is two, and they are evenly spaced along the circumferential direction of the roller brush shaft 21. Under the action of the suction airflow of the dust suction device 3, the hair can move axially along the roller brush shaft 21 towards the preset area 21a and accumulate in the preset area 21a. As the hair accumulates and tangles in the preset area 21a, the blade can cut off the hair and scatter it, so that it is sucked into the dust suction device 3 under the action of the suction airflow of the dust suction device 3.

[0184] Exemplarily, please refer to Figure 4 , the cutting device 4 is a set of cutter teeth, which is arranged on the roller brush shaft 21 at the corresponding position of the preset area 21a. The cutter teeth include a moving cutter and a fixed cutter, and the moving cutter can reciprocate rapidly relative to the fixed cutter to cut the hair. Under the action of the suction airflow of the dust suction device 3, the hair can move axially along the roller brush shaft 21 towards the preset area 21a. When the hair moves to the cutter teeth, it can be cut and scattered by the cutter teeth, so that it is sucked into the dust suction device 3 under the action of the suction airflow of the dust suction device 3.

[0185] Exemplarily, please refer to Figure 5 , the cutting device 4 includes cutter teeth and blades. The blades are arranged on the roller brush shaft 21 at the corresponding position of the preset area 21a. The number of blades is two, and they are evenly spaced along the circumferential direction of the roller brush shaft 21. The cutter teeth are arranged on the device body 1 at the corresponding position of the preset area 21a. Under the action of the suction airflow of the dust suction device 3, the hair can move axially along the roller brush shaft 21 towards the preset area 21a and accumulate in the preset area 21a. As the hair accumulates and tangles in the preset area 21a, the blade can cut off the hair and scatter it. Start the cutter teeth to make the moving cutter reciprocate rapidly relative to the fixed cutter, and increase the rotation speed of the roller brush 2 so that the hair can also touch the cutter teeth under the action of a larger centrifugal force, and then be cut and scattered, so that it is sucked into the dust suction device 3 under the action of the suction airflow of the dust suction device 3.

[0186] It can be understood that the above three solutions of the cutting device 4 can be arranged separately or in combination with each other.

[0187] In the embodiment of the present application, the cutting device 4 can cut the hair accumulated in the preset area 21a, which is convenient for the dust suction device 3 to more easily suck in the cut hair fragments, is beneficial to reducing the possibility of hair winding on the roller brush 2, and then is beneficial to improving the continuous cleaning ability of the cleaning device for the hair on the ground.

[0188] Please refer to Figures 1 to 5The embodiment of the present application further provides a cleaning device, including a device body 1, a dust suction device 3, a driving member 5 and a roller brush 2. The device body 1 has a dust suction port 1a, the dust suction device 3 is installed on the device body 1, the dust suction device 3 is used to suck the dust suction port 1a, the driving member 5 is installed on the device body 1, the roller brush shaft 21 is rotatably connected to the device body 1, and the driving member 5 drives the roller brush shaft 21 to rotate.

[0189] Second implementation method:

[0190] See also Figures 8 to 10 The embodiment of the present application further provides a roller brush 2, comprising a roller brush shaft 21, a cleaning portion 22 and a protective brush 23. The roller brush shaft 21 is used to rotate relative to the device body 1, the cleaning portion 22 comprises a first brush 221 connected to the roller brush shaft 21, the first brush 221 is used to clean the cleaned object, the protective brush 23 is arranged to contact the cavity wall of the roller brush cavity 11 of the device body 1, the protective brush 23 is connected to the roller brush shaft 21, at least one end of the roller brush shaft 21 is provided with the protective brush 23, and the first brush 221 is located on one side of the protective brush 23 along the axial direction of the roller brush shaft 21.

[0191] Exemplarily, the guide strip 222 may be partially located on a side of the protection brush 23 that is away from the preset area 21 a .

[0192] In the embodiment of the present application, one end of the protective brush 23 that is radially away from the roller brush shaft 21 contacts the wall of the roller brush cavity 11, so that the protective brush 23 can support the hair entangled at both ends of the roller brush 2, thereby reducing the possibility of the hair spreading to the outside of the roller brush cavity 11, which is beneficial to ensuring the normal rotation of the roller brush 2, and then helps to improve the cleaning equipment's ability to continuously clean hair on the ground.

[0193] In one embodiment, please refer to Figures 8 to 10 Protective brushes 23 are provided at both ends of the roller brush shaft 21 , and the first brush 221 is located between the protective brushes 23 at both ends.

[0194] In the embodiment of the present application, protective brushes 23 are provided at both ends of the roller brush shaft 21, and the first brush 221 and the preset area 21a are located between the protective brushes 23 at both ends, which further reduces the possibility of hair spreading to the outside of the roller brush cavity 11, which is beneficial to ensuring the normal rotation of the roller brush 2, and then helps to improve the cleaning equipment's continuous cleaning ability of hair on the ground.

[0195] In one embodiment, please refer to Figures 8 to 10 The protective brush 23 is a second brush. The roller brush shaft 21 is formed with a hair planting hole 21 b. The protective brush 23 is partially installed in the hair planting hole 21 b. The working end of the protective brush 23 is inclined away from the first brush 221 along the axial direction of the roller brush shaft 21.

[0196] The working end of the protective brush 23 inclines away from the first brush 221 along the axial direction of the roller brush shaft 21, so that there is a certain safety distance between the planting pores 21b and the edges of both axial ends of the roller brush shaft 21, thereby reducing the possibility of damage to the roller brush shaft 21 during the process of implanting the protective brush 23 into the roller brush shaft 21, which is conducive to improving the yield rate of the roller brush shaft 21.

[0197] In one embodiment, please refer to Figures 8 to 10 , the included angle between the second brush and the central axis of the roller brush shaft 21 is 40° - 60°.

[0198] In the embodiment of the present application, the included angle between the second brush and the central axis of the roller brush shaft 21 is 40° - 60°. On the one hand, it makes the end of the second brush along the radial direction of the roller brush shaft 21 closer to the preset area 21a along the axial direction of the roller brush shaft 21 relative to the target end of the second brush, and then there is a certain safety distance between the planting pores 21b and the edges of both axial ends of the roller brush shaft 21, thereby reducing the possibility of damage to the roller brush shaft 21 during the process of implanting the protective brush 23 into the roller brush shaft 21, which is conducive to improving the yield rate of the roller brush shaft 21; on the other hand, the second brush can support the hair wound around both ends of the roller brush 2, and then reduce the possibility of the hair spreading to the outside of the roller brush cavity 11, which is conducive to ensuring the normal rotation of the roller brush 2, and then conducive to improving the continuous cleaning ability of the roller brush 2 for the hair on the ground.

[0199] In one embodiment, please refer to Figures 8 to 10 , the number of planting pores 21b at each end is at least two, and at least two planting pores 21b at each end are arranged at intervals along the circumferential direction of the roller brush shaft 21.

[0200] At least two planting pores 21b arranged at intervals along the axial direction of the roller brush shaft 21 correspond to at least two second brush bristles, so that the second brush bristles can better support the hair wound around both ends of the roller brush shaft 21, thereby reducing the possibility of the hair moving towards both ends and spreading to the outside of the roller brush cavity 11, facilitating the normal rotation of the roller brush 2, and then conducive to improving the continuous cleaning ability of the roller brush 2 for the hair on the ground.

[0201] In one embodiment, please refer to Figures 3 to 5 , the roller brush shaft 21 has a groove 21c, the groove 21c surrounds the roller brush shaft 21 along the circumferential direction of the roller brush shaft 21, and part of the protective brush 23 at each end is located in the corresponding groove 21c, and the protective brush 23 is glued to the roller brush shaft 21.

[0202] In the embodiment of the present application, the groove 21c and the roller brush shaft 21 are integrally formed, and the groove 21c can be prefabricated in advance, so that the roller brush shaft 21 does not need to be processed and drilled again, and the protective brush 23 can be directly bonded into the groove 21c of the roller brush shaft 21, so as to reduce the processing procedures of the cleaning device, facilitate the installation of the protective brush 23, and is conducive to reducing the processing difficulty and processing cost of the roller brush 2.

[0203] In one embodiment, please refer to Figure 6 and Figure 7 , the roller brush shaft 21 has a preset area 21a corresponding to the dust suction port 1a of the device body 1. The roller brush shaft 21 includes at least two sub-shaft segments 211 arranged at intervals in sequence. The at least two sub-shaft segments 211 are arranged at intervals in sequence along the axial direction of the sub-shaft segment 211. Each sub-shaft segment 211 is used to rotate relative to the device body 1. The preset area 21a is located between two adjacent sub-shaft segments 211, and two adjacent sub-shaft segments 211 are spaced apart by a preset distance.

[0204] In the embodiment of the present application, under the action of the suction airflow of the dust suction port 1a of the device body 1, the hair can move along the axial direction of the sub-shaft segment 211 towards the preset area 21a. Two adjacent sub-shaft segments 211 are spaced apart by a preset distance, which is convenient for the hair to break away from the sub-shaft segment 211, and thus is sucked into the device body 1 through the dust suction port 1a under the action of the suction airflow of the dust suction port 1a of the device body 1, which is beneficial to reducing the possibility of the hair winding around the roller brush 2, and then is beneficial to improving the continuous cleaning ability of the cleaning device for the hair on the ground.

[0205] Please refer to Figures 8 to 10 , the embodiment of the present application provides a cleaning device, including a device body 1, a driving member 5 and a roller brush 2. The device body 1 has a roller brush cavity 11. The driving member 5 is installed on the device body 1. The roller brush cavity 11 is used to accommodate the roller brush 2. The roller brush shaft 21 is rotatably connected to the device body 1. The driving member 5 drives the roller brush shaft 21 to rotate, and the protective brush 23 contacts the cavity wall of the roller brush cavity 11.

[0206] In one embodiment, please refer to Figures 8 to 10 , the cavity wall of the roller brush cavity 11 has a first contact surface 111 and a second contact surface 112 arranged crosswise. The second contact surface 112 surrounds the outside of the first contact surface 111. Each end of the protective brush 23 contacts the corresponding first contact surface 111 and the corresponding second contact surface 112.

[0207] In the embodiment of the present application, the first contact surface 111 and the second contact surface 112 are arranged crosswise. The second contact surface 112 surrounds the outside of the first contact surface 111. Each end of the protective brush 23 contacts the corresponding first contact surface 111 and the corresponding second contact surface 112, so that the hair wound around both ends of the roller brush 2 needs to first move along the axial direction of the roller brush shaft 21 on the second contact surface 112 to the first contact surface 111, and then change the direction and move along the radial direction of the roller brush shaft 21 on the first contact surface 111 to move outside the roller brush cavity 11, increasing the difficulty of the hair spreading to the outside of the roller brush cavity 11, improving the blocking effect of the cavity wall of the roller brush cavity 11 on the hair, further reducing the possibility of the hair spreading to the outside of the roller brush cavity 11, and being beneficial to improving the continuous cleaning ability of the cleaning device for the hair on the ground.

[0208] In one embodiment, please refer toFigures 8 to 10 , the device body 1 includes a main body 13 and an end cover 12. The main body 13 and the end cover 12 enclose a roller brush cavity 11. The main body 13 is connected with end covers 12 at both opposite ends along the roller brush shaft 21. The roller brush shaft 21 is rotatably connected with the end cover 12. The first contact surface 111 and the second contact surface 112 are both formed on the end cover 12.

[0209] In the embodiment of the present application, the main body 13 and the end cover 12 enclose a roller brush cavity 11. The roller brush shaft 21 is rotatably connected with the end cover 12. The first contact surface 111 and the second contact surface 112 are both formed on the end cover 12, so that the first contact surface 111 protruding radially into the roller brush cavity 11 along the roller brush shaft 21 is located outside the main body 13 along the axial direction of the roller brush shaft 21. When the end cover 12 is disassembled from the main body 13, it is beneficial to improve the convenience of installing the roller brush 2.

[0210] In one embodiment, please refer to Figures 8 to 10 , the protective brush 23 is a second brush. The roller brush shaft 21 is formed with hair planting pores 21b. The protective brush 23 is partially installed in the hair planting pores 21b. The hair planting pores 21b are located between the two end covers 12.

[0211] In the embodiment of the present application, the hair planting pores 21b are located between the two end covers 12, so that the working end of the protective brush 23 can be inclined away from the first brush 221 along the axial direction of the roller brush shaft 21, so that there is a certain safety distance between the hair planting pores 21b and the edges of both ends of the roller brush shaft 21 along the axial direction, so as to reduce the possibility of the roller brush shaft 21 being damaged during the process of implanting the protective brush 23 into the roller brush shaft 21, which is beneficial to improving the yield rate of the roller brush shaft 21.

[0212] In one embodiment, please refer to Figures 8 to 10 , the included angle between the second brush and the central axis of the roller brush shaft 21 is 40° - 60°.

[0213] In the embodiment of the present application, the included angle between the second brush and the central axis of the roller brush shaft 21 is 40° - 60°. On the one hand, it makes one end of the second brush close to the roller brush shaft 21 along the radial direction of the roller brush shaft 21 closer to the preset area 21a along the axial direction of the roller brush shaft 21 relative to the target end of the second brush, and then there is a certain safety distance between the hair planting pores 21b and the edges of both ends of the roller brush shaft 21 along the axial direction, so as to reduce the possibility of the roller brush shaft 21 being damaged during the process of implanting the protective brush 23 into the roller brush shaft 21, which is beneficial to improving the yield rate of the roller brush shaft 21; on the other hand, the second brush can support the hair wound around both ends of the roller brush 2, and then reduce the possibility of the hair spreading outside the roller brush cavity 11, which is beneficial to ensuring the normal rotation of the roller brush 2, and then beneficial to improving the continuous cleaning ability of the roller brush 2 for the hair on the ground.

[0214] In one embodiment, please refer to Figures 8 to 10, the number of hair-planting pores 21b at each end is at least two, and at least two hair-planting pores 21b at each end are arranged at intervals in the circumferential direction of the roller brush shaft 21.

[0215] In the embodiment of the present application, at least two hair-planting pores 21b arranged at intervals in the axial direction of the roller brush shaft 21 correspond to at least two second bristles, so that the second bristles can better support the hair wound around both ends of the roller brush shaft 21, reducing the possibility of hair moving towards both ends and spreading outside the roller brush cavity 11, facilitating the normal rotation of the roller brush 2, and then being beneficial to improving the continuous cleaning ability of the roller brush 2 for the hair on the ground.

[0216] Please refer to Figures 8 to 10 , the embodiment of the present application further provides a cleaning device, including a device body 1, a driving member 5 and a roller brush 2. The device body 1 has a roller brush cavity 11, the driving member 5 is installed on the device body 1, the roller brush cavity 11 is used to accommodate the roller brush 2, the roller brush shaft 21 is rotatably connected to the device body 1, the driving member 5 drives the roller brush shaft 21 to rotate, and the protective brush 23 contacts the cavity wall of the roller brush cavity 11.

[0217] The third embodiment:

[0218] Please refer to Figure 6 and Figure 7 , the embodiment of the present application provides a roller brush 2, including a roller brush shaft 21 and a cleaning part 22. The roller brush shaft 21 has a preset area 21a corresponding to the dust suction port 1a of the device body 1. The roller brush shaft 21 includes at least two sub-shaft segments 211 arranged at intervals in sequence. The at least two sub-shaft segments 211 are arranged at intervals in the axial direction of the sub-shaft segments 211 in sequence. Each sub-shaft segment 211 is used to rotate relative to the device body 1. The preset area 21a is located between two adjacent sub-shaft segments 211. The two adjacent sub-shaft segments 211 are spaced apart by a preset distance, and each sub-shaft segment 211 is connected with a cleaning part 22.

[0219] In the embodiment of the present application, under the action of the suction airflow of the dust suction port 1a of the device body 1, the hair can move along the axial direction of the sub-shaft segment 211 towards the preset area 21a. The two adjacent sub-shaft segments 211 are spaced apart by a preset distance, facilitating the hair to break away from the sub-shaft segment 211, so that it can be sucked into the device body 1 through the dust suction port 1a under the action of the suction airflow of the dust suction port 1a of the device body 1, which is beneficial to reducing the possibility of hair winding on the roller brush 2, and then being beneficial to improving the continuous cleaning ability of the cleaning device for the hair on the ground.

[0220] Please refer to Figure 6 and Figure 7, an embodiment of the present application provides a cleaning device, including a device body 1, a dust suction device 3, a driving member 5 and a roller brush 2. The device body 1 has a dust suction port 1a. The dust suction device 3 is installed on the device body 1, and the dust suction device 3 is used to suck the dust suction port 1a. The driving member 5 is installed on the device body 1, and each sub-axis segment 211 is rotatably connected to the device body 1. The driving member 5 drives the sub-axis segment 211 to rotate.

[0221] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A roller brush, characterized in that: include: A roller brush shaft, used to rotate relative to the device body, the roller brush shaft having a preset area corresponding to the dust suction port of the device body; A cleaning portion, wherein the cleaning portion is correspondingly arranged on at least one side of the preset area along the axial direction of the roller brush shaft, and the cleaning portion comprises a first brush connected to the roller brush shaft, wherein the first brush is used to clean the cleaned object, and the working end of the first brush is inclined toward the preset area at least along the axial direction of the roller brush shaft.

2. The roller brush according to claim 1, characterized in that: The cleaning parts are arranged on opposite sides of the preset area along the axial direction of the roller brush shaft.

3. The roller brush according to claim 1, characterized in that: The cleaning part further comprises a guide bar connected to the roller brush shaft, wherein the guide bar is used to support the first brush along the circumferential direction of the roller brush shaft during the rotation of the roller brush shaft, and the guide bar and the first brush are arranged along the circumferential direction of the roller brush shaft.

4. The roller brush according to claim 3, characterized in that: The distance between the end surface of the working end of the guide strip and the central axis of the roller brush shaft is a preset distance, and the preset distance gradually decreases from the guide strip along the axial direction of the roller brush shaft toward the preset area.

5. The roller brush according to claim 4, characterized in that: When the roller brush is in a non-working state, the distance between the end of the working end of the first brush and the central axis of the roller brush shaft is greater than the preset distance.

6. The roller brush according to claim 3, characterized in that: The guide strips and the first brushes are alternately arranged along the circumferential direction of the roller brush shaft. When the roller brush is in a non-working state, the guide strips and the first brushes are arranged at intervals.

7. The roller brush according to claim 3, characterized in that: The guide strip is made of a flexible material, and the roller brush further comprises a support member connected to the roller brush shaft, and the support member abuts against the corresponding guide strip along the circumferential direction of the roller brush shaft.

8. The roller brush according to claim 7, characterized in that: The support member is located at one end of the guide strip that is away from the preset area along the axial direction of the roller brush shaft.

9. The roller brush according to claim 8, characterized in that: The support members and the guide strips are alternately arranged along the circumference of the roller brush shaft, and the support members are respectively in contact with the corresponding guide strips on opposite sides along the circumference of the roller brush shaft, and the first brush is located between the support member and the preset area.

10. The roller brush according to any one of claims 1 to 9, characterized in that: The roller brush shaft includes at least two sub-shaft segments, at least two of the sub-shaft segments are arranged in sequence along the axial direction of the sub-shaft segments, each of the sub-shaft segments is used to rotate relative to the equipment body, each of the sub-shaft segments is connected to the cleaning part, the preset area is located between two adjacent sub-shaft segments, and the two adjacent sub-shaft segments are spaced apart by a preset distance.

11. The roller brush according to any one of claims 1 to 9, characterized in that: The opposite ends of the roller brush shaft are used to be rotatably mounted on the equipment body, and the roller brush shaft extends from one of the opposite ends of the roller brush shaft to the other end, and the preset area is an annular groove surrounding the roller brush shaft along the circumference of the roller brush shaft.

12. The roller brush according to any one of claims 1 to 9, characterized in that: The roller brush shaft includes at least two sub-shaft segments, at least two of the sub-shaft segments are arranged in sequence along the axial direction of the sub-shaft segments, each of the sub-shaft segments is used to rotate relative to the equipment body, each of the sub-shaft segments is connected to the cleaning part, the preset area is located between two adjacent sub-shaft segments, and the two adjacent sub-shaft segments are spaced apart by a preset distance; the roller brush also includes a protective brush connected to the roller brush shaft, the protective brush is provided at least at one end of the roller brush shaft, and the first brush is located on the side of the protective brush along the axial direction of the roller brush shaft facing the preset area.

13. The roller brush according to claim 12, characterized in that: The protective brushes are disposed at both ends of the roller brush shaft, and the first brush and the preset area are located between the protective brushes at both ends.

14. The roller brush according to claim 12, characterized in that: The protective brush is a second brush, the roller brush shaft is formed with a hair planting hole, the protective brush is partially installed in the hair planting hole, and the working end of the protective brush is inclined away from the first brush along the axial direction of the roller brush shaft.

15. The roller brush according to claim 14, characterized in that: The angle between the second brush and the central axis of the roller brush shaft is 40° to 60°.

16. The roller brush according to claim 14, characterized in that: The number of the hair planting holes at each end is at least two, and at least two of the hair planting holes at each end are arranged at intervals along the circumference of the roller brush shaft.

17. The roller brush according to claim 12, characterized in that: The roller brush shaft has a groove, and the groove surrounds the roller brush shaft along the circumference of the roller brush shaft. The protective brush at each end is partially located in the corresponding groove, and the protective brush is glued to the roller brush shaft.

18. A cleaning device, characterized in that: include: The device body has a dust suction port; A dust suction device, mounted on the device body, the dust suction device is used to suck the dust suction port; A driving member, mounted on the device body; According to the roller brush according to any one of claims 1 to 11, the roller brush shaft is rotatably connected to the device body, and the driving member drives the roller brush shaft to rotate.

19. The cleaning device according to claim 18, characterized in that The device body has a roller brush cavity for accommodating the roller brush, and the roller brush also includes a protective brush connected to the roller brush shaft. The protective brush is provided at at least one end of the roller brush shaft, and the first brush is located on the side of the protective brush along the axial direction of the roller brush shaft toward the preset area, and the protective brush is in contact with the cavity wall of the roller brush cavity.

20. The cleaning device according to claim 19, characterized in that The protective brushes are disposed at both ends of the roller brush shaft, and the first brush and the preset area are located between the protective brushes at both ends.

21. The cleaning device according to claim 19, characterized in that The cavity wall of the rolling brush cavity has a first contact surface and a second contact surface arranged crosswise, the second contact surface surrounds the outside of the first contact surface, and the protective brush at each end contacts the corresponding first contact surface and the corresponding second contact surface.

22. The cleaning device according to claim 21, characterized in that The device body includes a main body and an end cover, and the main body and the end cover are arranged to form the roller brush cavity. The main body is connected to the end covers at both opposite ends along the roller brush shaft. The roller brush shaft is rotatably connected to the end cover, and the first contact surface and the second contact surface are both formed on the end cover.

23. The cleaning device according to claim 22, characterized in that The protective brush is a second brush, the roller brush shaft is formed with a hair planting hole, the protective brush is partially installed in the hair planting hole, and the hair planting hole is located between the end covers at both ends.

24. The cleaning device according to claim 23, characterized in that The angle between the second brush and the central axis of the roller brush shaft is 40° to 60°.

25. The cleaning device according to claim 23, characterized in that The number of the hair planting holes at each end is at least two, and at least two of the hair planting holes at each end are arranged at intervals along the circumference of the roller brush shaft.

26. The cleaning device according to claim 19, characterized in that The roller brush shaft has a groove, and the groove surrounds the roller brush shaft along the circumference of the roller brush shaft. The protective brush at each end is partially located in the corresponding groove, and the protective brush is glued to the roller brush shaft.

27. The cleaning device according to any one of claims 18 to 26, characterized in that: The cleaning device comprises a cutting device, which is mounted on the roller brush shaft or the device body, and is located on a side corresponding to the cleaning portion facing the preset area.

28. A cleaning device, characterized in that: include: The device body has a dust suction port; A dust suction device, mounted on the device body, the dust suction device is used to suck the dust suction port; A driving member, mounted on the device body; According to the roller brush according to any one of claims 1 to 17, the roller brush shaft is rotatably connected to the device body, and the driving member drives the roller brush shaft to rotate.

29. A roller brush, characterized in that: include: A roller brush shaft, used for rotating relative to the device body; A cleaning part, the cleaning part comprising a first brush connected to the roller brush shaft, the first brush being used to clean the object to be cleaned; The protective brush is arranged to contact the cavity wall of the roller brush cavity of the equipment body, the protective brush is connected to the roller brush shaft, the protective brush is arranged on at least one end of the roller brush shaft, and the first brush is located on the side corresponding to the protective brush along the axial direction of the roller brush shaft.

30. The roller brush according to claim 29, characterized in that: The protective brushes are disposed at both ends of the roller brush shaft, and the first brush is located between the protective brushes at both ends.

31. The roller brush according to claim 29, characterized in that: The protective brush is a second brush, the roller brush shaft is formed with a hair planting hole, the protective brush is partially installed in the hair planting hole, and the working end of the protective brush is inclined away from the first brush along the axial direction of the roller brush shaft.

32. The roller brush according to claim 31, characterized in that: The angle between the second brush and the central axis of the roller brush shaft is 40° to 60°.

33. The roller brush according to claim 31, characterized in that: The number of the hair planting holes at each end is at least two, and at least two of the hair planting holes at each end are arranged at intervals along the circumference of the roller brush shaft.

34. The roller brush according to claim 29, characterized in that: The roller brush shaft has a groove, and the groove surrounds the roller brush shaft along the circumference of the roller brush shaft. The protective brush at each end is partially located in the corresponding groove, and the protective brush is glued to the roller brush shaft.

35. The roller brush according to claim 29, characterized in that The roller brush shaft has a preset area for suction corresponding to the suction port of the device body, and the roller brush shaft includes at least two sub-shaft segments arranged in sequence and spaced apart from each other, and at least two of the sub-shaft segments are arranged in sequence and spaced apart from each other along the axial direction of the sub-shaft segments, and each of the sub-shaft segments is used to rotate relative to the device body, and the preset area is located between two adjacent sub-shaft segments, and the two adjacent sub-shaft segments are spaced apart by a preset distance.

36. A cleaning device, characterized in that: include: The device body has a roller brush cavity; A driving member, mounted on the device body; According to the roller brush according to claim 29 or 30 or 34 or 35, the roller brush cavity is used to accommodate the roller brush, the roller brush shaft is rotatably connected to the equipment body, the driving member drives the roller brush shaft to rotate, and the protective brush is in contact with the cavity wall of the roller brush cavity.

37. The cleaning device according to claim 36, characterized in that The cavity wall of the rolling brush cavity has a first contact surface and a second contact surface arranged crosswise, the second contact surface surrounds the outside of the first contact surface, and the protective brush at each end contacts the corresponding first contact surface and the corresponding second contact surface.

38. The cleaning device according to claim 37, characterized in that The device body includes a main body and an end cover, and the main body and the end cover are arranged to form the roller brush cavity. The main body is connected to the end covers at both opposite ends along the roller brush shaft. The roller brush shaft is rotatably connected to the end cover, and the first contact surface and the second contact surface are both formed on the end cover.

39. The cleaning device according to claim 38, characterized in that The protective brush is a second brush, the roller brush shaft is formed with a hair planting hole, the protective brush is partially installed in the hair planting hole, and the hair planting hole is located between the end covers at both ends.

40. The cleaning device according to claim 39, characterized in that The angle between the second brush and the central axis of the roller brush shaft is 40° to 60°.

41. The cleaning device according to claim 39, characterized in that The number of the hair planting holes at each end is at least two, and at least two of the hair planting holes at each end are arranged at intervals along the circumference of the roller brush shaft.

42. A cleaning device, characterized in that: include: The device body has a roller brush cavity; A driving member, mounted on the device body; According to the roller brush according to any one of claims 29 to 35, the roller brush cavity is used to accommodate the roller brush, the roller brush shaft is rotatably connected to the equipment body, the driving member drives the roller brush shaft to rotate, and the protective brush is in contact with the cavity wall of the roller brush cavity.

43. A roller brush, characterized in that: include: A roller brush shaft having a preset area corresponding to the dust suction port of the device body, the roller brush shaft comprising at least two sub-shaft segments arranged in sequence and spaced apart from each other, at least two of the sub-shaft segments being arranged in sequence and spaced apart from each other along the axial direction of the sub-shaft segments, each of the sub-shaft segments being used to rotate relative to the device body, the preset area being located between two adjacent sub-shaft segments, and the two adjacent sub-shaft segments being spaced apart by a preset distance; A cleaning part, each of the sub-shaft segments is connected with the cleaning part.

44. A cleaning device, characterized in that: include: The device body has a dust suction port; A dust suction device, mounted on the device body, the dust suction device is used to suck the dust suction port; A driving member, mounted on the device body; According to the roller brush of claim 43, each of the sub-shaft segments is rotatably connected to the device body, and the driving member drives the sub-shaft segment to rotate.

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