Side brush, cleaning assembly, cleaning equipment, cleaning base station and cleaning system

Abstract

The utility model provides a side brush, a cleaning assembly, cleaning equipment, a cleaning base station and a cleaning system. The side brush comprises a side brush seat capable of rotating around a first axis; each brush strip comprises a connecting arm and a wool top, the first end of the connecting arm is connected to the side brush seat, the wool top is connected to the second end of the connecting arm, at least one brush strip is a movable brush strip capable of moving between a first position and a second position, the movable brush strip is located at the first position, and the wool top is located at the second position. At least one of the movable brush strip and the brush strip adjacent to the movable brush strip is in a separated state of being far away from each other in the circumferential direction around the first axis; and when the movable brush strip is located at the second position, the movable brush strip and at least one of the brush strips adjacent to the movable brush strip are in a closing state close to each other in the circumferential direction. The movable side brush can be separated from and folded with at least one of the adjacent brush strips, so that if long-filament-shaped garbage is wound on the brush strips at the same time, the long-filament-shaped garbage can be easily separated.

Description

Technical Field

[0001] The present disclosure relates to the technical field of household cleaning appliances, and in particular, to a side brush, a cleaning assembly, a cleaning device, a cleaning base station, and a cleaning system. Background Art

[0002] A self-propelled cleaning robot usually includes a suction port, a fan, and a dust box. The suction negative pressure generated by the fan draws dust and garbage into the dust box through the suction port, thereby collecting garbage on the surface to be cleaned. Typically, the suction port is located at the bottom of the cleaning robot, and a side brush is also provided on the side front of the suction port. The side brush rotates when the cleaning robot performs the cleaning task to collect dust and garbage on the surface to be cleaned toward the suction port to improve cleaning efficiency. When a self-propelled cleaning robot is cleaning a surface, there is a problem of long filamentous garbage (such as hair) being entangled on the side brush. Utility Model Content

[0003] To at least partially address the problems existing in the prior art, according to one aspect of the present disclosure, a side brush is provided. The side brush is applied to a cleaning device, the cleaning device comprising a body and a suction port located at the bottom of the body. The side brush is located adjacent to the suction port. During cleaning, the side brush rotates to sweep debris toward the suction port. The side brush comprises a side brush holder rotatable about a first axis; a plurality of brush bars, each of the plurality of brush bars comprising a connecting arm and a bristle bar, the first end of the connecting arm being connected to the side brush holder, the bristle bar being connected to the second end of the connecting arm, and at least one of the plurality of brush bars being a movable brush bar movable between a first position and a second position. In the first position, the movable brush bar and at least one of the adjacent brush bars are separated and spaced apart from each other along a circumferential direction around the first axis. In the second position, the movable brush bar and at least one of the adjacent brush bars are closed and moved toward each other along a circumferential direction, and the spacing between the bristle bar of the movable brush bar and at least one of the adjacent brush bars remains constant or decreases in a radially outward direction perpendicular to the first axis.

[0004] According to another aspect of the present disclosure, a side brush is provided. The side brush is used in a cleaning device, which includes a body and a suction port located at the bottom of the body. The side brush is located adjacent to the suction port. During cleaning, the side brush rotates to sweep garbage toward the suction port. The side brush includes brush bars that are rotatable as a whole about a first axis, and at least one of the brush bars is a movable brush bar that is movable between a first position and a second position. When the movable brush bar is in the first position, the radial distance from the free end of the movable brush bar to the first axis has a first value; when the movable brush bar is in the second position, the radial distance has a second value, which is greater than the first value.

[0005] According to another aspect of the present disclosure, a cleaning assembly is provided. The cleaning assembly is applied to a cleaning device, the cleaning device comprising a body and a suction port disposed at a bottom of the body, a side brush disposed adjacent to the suction port, and the side brush rotates to sweep garbage toward the suction port during cleaning. The cleaning assembly includes: a side brush, the side brush including a side brush seat and a plurality of brush strips, the side brush seat being rotatable around a first axis, one end of each of the plurality of brush strips being connected to the side brush seat, at least one of the plurality of brush strips being a movable brush strip movable between a first position and a second position, wherein: when the movable brush strip is in the first position, the movable brush strip and at least one of the brush strips adjacent thereto are in a separated state away from each other along a circumferential direction around the first axis; and when the movable brush strip is in the second position, the movable brush strip and at least one of the brush strips adjacent thereto are in a closed state close to each other along a circumferential direction; and a negative pressure device, the negative pressure device being capable of generating an airflow so as to peel off at least part of the filamentous garbage on the plurality of brush strips when the movable brush strip is in the second position, or the negative pressure device being capable of generating an airflow so as to peel off at least part of the filamentous garbage on the plurality of brush strips during the process of the movable brush stripping back and forth between the first position and the second position.

[0006] According to another aspect of the present disclosure, a cleaning device is provided, comprising: any one of the side brushes as described above; and a first negative pressure device, which is capable of generating an airflow to peel off at least part of the filamentous garbage on the brush bar when the movable brush bar is in the second position; or, the first negative pressure device is capable of generating an airflow to peel off at least part of the filamentous garbage on the brush bar when the movable brush bar is switched back and forth between the first position and the second position.

[0007] According to yet another aspect of the present disclosure, a cleaning device is provided, comprising any one of the above cleaning components.

[0008] According to another aspect of the present disclosure, a cleaning base station is provided, which has a docking position for docking with any of the above cleaning devices.

[0009] According to another aspect of the present disclosure, a cleaning base station is provided, comprising a docking station for docking any of the above cleaning devices, and a second negative pressure device. The second negative pressure device is capable of generating an airflow to remove at least a portion of the filamentary waste from the movable brush bar when the movable brush bar is in the second position, or the second negative pressure device is capable of generating an airflow to remove at least a portion of the filamentary waste from the movable brush bar when the movable brush bar is in the second position.

[0010] According to yet another aspect of the present disclosure, a cleaning system is provided, comprising any one of the above cleaning base stations and any one of the above cleaning devices, wherein the cleaning device can be selectively docked with the cleaning base station.

[0011] According to another aspect of the present disclosure, a cleaning system is provided, comprising a cleaning base station, a cleaning device, and any of the cleaning components described above. The cleaning device can be selectively docked with the cleaning base station. The side brush of the cleaning component is disposed on the cleaning device, and the negative pressure device of the cleaning component is disposed on the cleaning base station.

[0012] Typically, when the side brush is in normal cleaning mode, the movable brush bar is in the first position, separating the multiple brush bars from each other (i.e., in a separated state). During cleaning, filamentary debris may become entangled in the multiple brush bars. After the movable brush bar moves from the first position to the second position, that is, the movable brush bar and at least one of its adjacent brush bars are in a closed state, the distance between the free ends of the movable brush bar and at least one of its adjacent brush bars becomes significantly smaller. Therefore, if filamentary debris is simultaneously entangled in multiple brush bars, at least some of the filamentary debris can be easily dislodged after at least some of the brush bars are in the closed state. This allows the side brush to have a certain degree of automatic untangling effect, reducing the difficulty of manual maintenance of the side brush and even eliminating the need for manual maintenance by the user, thereby improving the user experience.

[0013] The disclosure introduces a series of simplified concepts that will be further described in detail in the detailed description. This disclosure does not intend to limit the key features and essential technical features of the claimed technical solutions, nor does it intend to determine the scope of protection of the claimed technical solutions.

[0014] The advantages and features of the present disclosure are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following drawings of the present disclosure are hereby incorporated into the present disclosure for understanding the present disclosure. The drawings show the embodiments of the present disclosure and their descriptions, and are used to explain the principles of the present disclosure. In the drawings,

[0016] Figure 1A to Figure 1B A bottom view of a cleaning device according to one embodiment of the present disclosure is shown, wherein Figure 1A The brush bar of the side brush is separated, and Figure 1B The brush strip of the side brush is in the closed state;

[0017] Figure 1C is a cross-sectional view of a cleaning device according to one embodiment of the present disclosure;

[0018] Figures 2A to 2B A perspective view of a side brush according to one embodiment of the present disclosure is shown, wherein Figure 2A The brush bar in the Figure 2B The brush bar in the middle is in the closed state;

[0019] Figures 3A to 3B Shown Figures 2A to 2B Exploded view of the edge brush in Figure 3A The brush bar in the Figure 3B The brush bar in the middle is in the closed state;

[0020] Figures 4A to 4B Shown Figures 2A to 2B A top view of the side brush in FIG. Figure 4A The brush bar in the Figure 4B The brush bar in the middle is in the closed state;

[0021] Figures 5A to 5B Shown Figures 2A to 2B A perspective view of a side brush holder of a side brush, wherein Figure 5A Showing the side view of the active side brush connection, and Figure 5B The side view showing the fixed side brush connection;

[0022] Figures 6A to 6B Shown Figures 2A to 2B The cleaning area formed by the side brush in Figure 6A The brush bar in the Figure 6B The brush bar in the middle is in the closed state;

[0023] 7A to 7B A top view of a side brush according to another embodiment of the present disclosure is shown, wherein Figure 7A The brush bar in the Figure 7B The brush bar in the middle is in the closed state;

[0024] Figures 8A to 8B A top view of a side brush according to another embodiment of the present disclosure is shown, wherein Figure 8A The brush bar in the Figure 8B The brush bar in the middle is in the closed state;

[0025] Figure 9 shows a side view of a side brush according to yet another embodiment of the present disclosure;

[0026] FIG. 10A to FIG. 10B shows a top view and a perspective view of a side brush according to another embodiment of the present disclosure;

[0027] Figures 11A to 11B A top view of a side brush according to another embodiment of the present disclosure is shown, wherein Figure 11A The brush bar in the Figure 11B The brush bar in the is closed; and

[0028] Figure 12 A cleaning system according to one embodiment of the present disclosure is shown;

[0029] Figure 13 A schematic diagram showing a roller brush provided in accordance with an embodiment of the present disclosure being installed in a mounting bin is shown;

[0030] Figure 14 A schematic diagram showing a roller brush provided in accordance with another embodiment of the present disclosure installed in a mounting bin is shown.

[0031] The above drawings include the following reference numerals:

[0032] Cleaning device 1; side brush 10; body 20; suction port 21; dust inlet 22; mounting compartment 23; storage compartment 24; recessed portion 25; dust collection container 30; roller brush 40; side brush holder 110; upper housing 111; first protruding tooth 1111; first upper mounting hole 1112; second upper mounting hole 1113; stop protrusion 1114; lower housing 112; first lower mounting hole 1122; second lower mounting hole 1123; first limiting portion 113; second limiting portion 114; first opening 115; first lower surface 115a; slide groove 116; second opening Mouth 117; second lower surface 117a; first end 116a of the slide; second end 116b of the slide; brush strip 120; connecting end 120a; end 120b; connecting arm 120c; middle arm 120d; wool strip 120e; rotating shaft 120f; flange 120g; groove 120h; upper surface 120i of the flange; first sub-surface 1201i; second sub-surface 1202i; upper surface 120j of the connecting arm; fixed brush strip 121; movable brush strip 122; cleaning base station 2; second negative pressure device 50; dust storage container 60. DETAILED DESCRIPTION

[0033] In the following description, a large amount of detail is provided to facilitate a thorough understanding of the present disclosure. However, it will be appreciated by those skilled in the art that the following description merely illustrates preferred embodiments of the present disclosure, and the present disclosure may be implemented without one or more of these details. Furthermore, to avoid confusion with the present disclosure, some technical features well known in the art are not described in detail.

[0034] The inventors have found that the side brush is usually located at the front of a cleaning device such as a cleaning robot, and is the first to come into contact with the surface to be cleaned. Therefore, filamentous garbage (such as hair, etc.) on the surface to be cleaned is very easy to be entangled on the side brush. If you want to clean up the filamentous garbage, you need to manually remove the side brush and then clean it, which may result in a poor user experience. Usually, the side brush includes two or three brush bars distributed radially. The free ends of the brush bars come into contact with the surface to be cleaned when the side brush rotates, and the dust and garbage on the surface to be cleaned are collected toward the suction port on the cleaning device. Since there is a gap between the brush bars, and the gap gradually increases along the radial outward direction of the side brush, the filamentous garbage entangled on the brush bar is less likely to fall off.

[0035] Based on this, the inventors have proposed a new design scheme for the side brush. In this scheme, at least part of the multiple brush strips of the side brush is movable. When it is desired to untangle the filamentous garbage, the movable brush strips can be brought closer to each other and / or the movable brush strips and the fixed brush strips can be brought closer to each other. In short, part or all of the multiple brush strips are closed. Then, the filamentous garbage entangled on the brush strips is detached by using one or more of the centrifugal force of the rotation of the side brush, the suction force of the fan, and the scraping force from the surface to be cleaned and / or the cleaning base station, and finally sucked into the cleaning device. Optionally, the force that closes the brush strips can come from one or more of a driving source such as a motor, friction in contact with the ground, inertia, etc. The above-mentioned side brush can be applied to any suitable cleaning equipment, such as a vacuum cleaner, a self-moving cleaning robot (such as a sweeping robot), a window cleaning robot, etc.

[0036] It should be noted that the filamentous waste described in this disclosure can also be referred to as entanglements. Due to its long shape, filamentous waste can easily become entangled in cleaning parts such as side brushes and roller brushes. Therefore, it can also be referred to as entanglements. In the following embodiments, whether "filamentous waste" or "entanglements" is described, it can be understood as a different name for the same type of waste (waste that is long and easily entangled in cleaning parts). In actual use of cleaning equipment, filamentous waste or entanglements mainly refers to hair, pet hair, etc.

[0037] Figure 1A to Figure 1B A bottom view of a cleaning device 1 according to one embodiment of the present disclosure is shown, wherein Figure 1A The brush strips of the side brush 10 are in a separated state, and Figure 1B The brush strips of the side brush 10 are in a closed state. Figure 1C FIG is a cross-sectional view of a cleaning device 1 according to an embodiment of the present disclosure. Figure 1A-1C The cleaning device 1 may include a body 20. A suction port 21 is provided at the bottom of the body 20. A mounting bin 23 is formed in a depression from the suction port 21 toward the inside of the body 20. The roller brush 40 can be rotatably mounted in the mounting bin 23 around a horizontal axis of rotation. Typically, a brush is provided on the outer peripheral side of the roller brush 40. The tip of the brush can extend beyond the suction port 21 to clean garbage on the surface to be cleaned. A storage bin 24 may also be provided in the body 20. The storage bin 24 has a dust inlet 22. The dust inlet 22 is connected to the mounting bin 23. The dust collecting container 30 can be detachably mounted in the storage bin 24. After the dust collecting container 30 is installed in the storage bin 24, the dust collecting air inlet of the dust collecting container 30 is connected to the dust inlet 22 of the storage bin 24. In this way, an air flow channel ( Figure 1CThe thick dashed line is the airflow path). A negative pressure device such as a fan can be connected to the end of the airflow channel. In order to distinguish it from the negative pressure device in the cleaning base station mentioned later, the negative pressure device in the cleaning equipment is called the first negative pressure device, and the negative pressure device in the cleaning base station is called the second negative pressure device 50 (see Figure 12 ). When the first negative pressure device is working, a negative pressure can be formed in the installation chamber 23, so that the dust and garbage swept by the roller brush 40 flow along the air flow channel together with the air. When the dust and garbage pass through the dust collecting container 30, they are filtered by the filter structure of the dust collecting container 30 and collected in the dust collecting container 30. The clean air can be discharged into the environment after passing through the first negative pressure device. In order to improve the cleaning efficiency, a side brush 10 is provided next to the suction port 21. Exemplarily, the side brush 10 can be provided at the bottom of the body 20 and in front of the side of the suction port 21. The side brush 10 rotates continuously during the cleaning task of the cleaning device 1, and is used to sweep the dust and garbage toward the suction port 21. Optionally, along the left and right directions of the cleaning device 1, the cleaning range formed by the rotation of the side brush 10 can extend out of the outer contour of the body of the cleaning device 1, so that the dust and garbage on the path traveled by the cleaning device 1 can be within the cleaning range of the side brush 10. Of course, along the left and right directions of the cleaning device 1, the cleaning range formed by the rotation of the side brush 10 can also just reach the outer contour of the body of the cleaning device 1, or not reach the outer contour of the body of the cleaning device 1. By reasonably planning the walking path of the cleaning device 1, the desired cleaning effect can also be achieved. Typically, side brushes 10 can be set on the left and right sides of the suction port 21. The side brushes 10 on both sides rotate toward the suction port 21. Specifically, if viewed from above, in the normal cleaning state, the side brush 10 on the left can rotate clockwise, and the side brush 10 on the right can rotate counterclockwise, so that the dust and garbage on both sides can be collected toward the suction port at the bottom of the body 20.

[0038] It should be noted that, in some other embodiments, the body 20 of the cleaning device 1 may not be provided with a roller brush 40, but is still provided with a suction port 21. When the side brush 10 performs a cleaning task, the garbage cleaned by the side brush 10 is swept into the suction port 12 and is sucked into the dust collection container 30 through the suction port 12. Figures 2A to 2B 、 Figures 3A to 3B FIG. 1 is a diagram illustrating a side brush 10 according to an exemplary embodiment of the present disclosure. As shown, the side brush 10 may include a side brush holder 110 and a plurality of brush strips 120 .

[0039] The side brush holder 110 is rotatable around the first axis P1. For the sake of convenience in the following description, the two opposite directions along the first axis P1 are defined as the first axial direction Z1 and the second axial direction Z2 respectively. The side brush holder 110 can be detachably connected to the body 20 to facilitate routine maintenance and replacement of the side brush 10. A plurality of brush strips 120 can be provided on the side brush holder 110. The side brush holder 110 can serve as a carrier for the plurality of brush strips 120, thereby driving the plurality of brush strips 120 to rotate as a whole. Optionally, the side brush holder 110 can be omitted, and the plurality of brush strips 120 can be directly mounted on the body 20.

[0040] One end of each brush strip 120 can be connected to the side brush holder 110. This end of the brush strip 120 can be referred to as a connecting end 120a, and the other end of each brush strip 120 can be referred to as a free end. The free end contacts the surface to be cleaned when the side brush 120 cleans the surface to be cleaned. At least one of the plurality of brush strips 120 is a movable brush strip 122 that is movable between a first position and a second position. When the movable brush strip 122 is in the first position, as shown in FIG. Figure 2A As shown, the active brush strip 122 and at least one of the adjacent brush strips 120 are in a separated state away from each other along the circumferential direction R1-R2 around the first axis P1. Figure 2B As shown, the movable brush bar 122 and at least one of the adjacent brush bars 120 are in a closed state close to each other along the circumferential direction R1 - R2 .

[0041] For example, in the illustrated embodiment, there are two brush bars 120, one of which is a movable brush bar 122 and the other is a fixed brush bar 121. The fixed brush bar 121 remains in a fixed position relative to the side brush holder 110. The fixed brush bar 121 is adjacent to the movable brush bar 122. The movement of the movable brush bar 122 between the first and second positions causes the movable brush bar 122 and the fixed brush bar 121 to move closer to or further away from each other. Alternatively, in other embodiments not shown, both brush bars 120 can be movable brush bars 122. For each movable brush bar 122, the other movable brush bar 122 is the adjacent brush bar.

[0042] In other embodiments, the side brush 10 may include at least two adjacent movable brush bars. For example, the side brush 10 has two brush bars, both of which are movable. Alternatively, the side brush 10 has more than two brush bars, one of which is adjacent to one of the movable brush bars is movable, and the remaining brush bars are fixed. Alternatively, the side brush 10 has more than two brush bars, both of which are adjacent to one of the movable brush bars are movable.

[0043] In some embodiments, during the closing of at least two adjacent movable brush strips, the at least two adjacent movable brush strips move in the same circumferential direction relative to the side brush holder 110. For example, when the side brush is mounted on the cleaning device 1, taking the right side brush on the cleaning device 1 as an example, and viewed from a top-down angle, the at least two adjacent movable brush strips can both rotate relative to the side brush holder 110 (e.g., move counterclockwise) to switch the state between the at least two adjacent movable brush strips to the closed state. When it is desired that the at least two adjacent movable brush strips switch from the closed state to the separated state, the at least two adjacent movable brush strips can both rotate forward relative to the side brush holder 110 (e.g., move clockwise) to switch the state between the at least two adjacent movable brush strips to the separated state. In some embodiments, the change in the spacing between the movable brush strips by rotating forward and reverse can primarily depend on the friction between the brush strips and the surface to be cleaned. Optionally, as will be described below, the force that moves the movable brush strips 122 can also come from one or more of a drive source such as a motor, a hydraulic device, or inertia.

[0044] In some embodiments, at least two adjacent movable brush strips can have different rotation angles relative to the circumferential motion of the side brush holder 110. The "rotation angle of the movable brush strip relative to the circumferential motion of the side brush holder 110" refers to the maximum rotation angle of the movable brush strip relative to the circumferential motion of the side brush holder 110. For example, two adjacent movable brush strips are used as an example. Both brush strips are movably connected to the side brush holder 110 and can rotate relative to the side brush holder 110 along the circumferential direction of the side brush holder 110.

[0045] Exemplarily, during the closing process of at least two adjacent movable brush bars, when the directions of circumferential motion of at least two adjacent movable brush bars relative to the side brush holder 110 are the same, along the direction of circumferential motion of the movable brush bars relative to the side brush holder 110 (i.e., along the closing direction), the angle through which the more rearward movable brush bar of at least two adjacent movable brush bars rotates relative to the circumferential motion of the side brush holder 110 is a first angle, and the angle through which the more forward movable brush bar of at least two adjacent movable brush bars rotates relative to the circumferential motion of the side brush holder 110 is a second angle, wherein the first angle is greater than the second angle. Since, during the process of closing at least two adjacent movable brush bars, the rearward movable brush bar among the at least two adjacent movable brush bars moves toward the side where the forward movable brush bar is located, and the forward movable brush bar moves toward the side away from the rearward movable brush bar. Therefore, when at least two adjacent movable brush bars have the same circumferential motion direction relative to the side brush holder 110, during the process of closing at least two adjacent movable brush bars, compared with the case where at least two adjacent movable brush bars have the same rotation angle, the first angle rotated by the rearward movable brush bar is greater than the second angle rotated by the forward movable brush bar. This allows the at least two adjacent movable brush bars to be as close as possible when rotated to the second position, i.e., to be more closed.

[0046] Alternatively, taking two adjacent movable brush bars as an example, when the two adjacent movable brush bars are brought together, one of the movable brush bars (for ease of description, referred to as the first brush bar) can move toward the adjacent movable brush bar (for ease of description, referred to as the second brush bar) in a first direction, while the second brush bar can remain stationary relative to the side brush holder 110. When the first brush bar and the second brush bar separate, the first brush bar moves in a second direction relative to the side brush holder 110 away from the second brush bar, while the second brush bar moves in the second direction relative to the side brush holder 110 toward the first brush bar. To minimize the separation between the first and second brush bars, the angle through which the second brush bar rotates relative to the side brush holder 110 can be designed to be smaller than the angle through which the first brush bar rotates relative to the side brush holder 110.

[0047] Optionally, in other embodiments not shown, there may be more brush strips 120, for example, greater than or equal to three. Among these brush strips 120, only a portion of them may be active brush strips 122, or of course all of them may be active brush strips 122. For each active brush strip 122:

[0048] If the two adjacent brush bars are fixed brush bars, the movable brush bar 122 can only be in a closed state with one of the adjacent brush bars when in the second position.

[0049] If at least one of the two brush bars adjacent to the movable brush bar 122 is a movable brush bar, then all the movable brush bars in the second position can cause: 1) the movable brush bar 122 and the two adjacent brush bars to be in a closed state; for example, one of the adjacent brush bars of the movable brush bar 122 is a fixed brush bar, and the other adjacent brush bar is a movable brush bar. The movable brush bar 122 moves toward the side where the fixed brush bar is located to get closer to the fixed brush bar, and the other movable brush bar moves toward the side where the movable brush bar 122 is located to get closer to the movable brush bar, ultimately causing the two movable brush bars and the one fixed brush bar to be in a closed state. Alternatively, if both two adjacent brush bars of the movable brush bar 122 are movable brush bars, all three movable brush bars move in the same direction toward the adjacent brush bar to get closer to the adjacent brush bar, for example, all three movable brush bars move in a counterclockwise direction, ultimately causing the three movable brush bars to be in a closed state. Alternatively, 2) the movable brush bar 122 is in a closed state with one of its adjacent brush bars; for example, one of the adjacent brush bars of the movable brush bar 122 is a fixed brush bar, and the other adjacent brush bar is a movable brush bar. The movable brush bar 122 moves toward the adjacent movable brush bar, bringing the two closer together and into a closed state, while the movable brush bar 122 moves away from the fixed brush bar. Thus, the present disclosure can be designed so that all brush bars 120 can be brought closer together by the movement of the movable brush bar 122. Alternatively, some brush bars 120 can be partially brought closer together by the movement of the movable brush bar 122. When there are three or more brush bars 120, the spacing between the brush bars 120 in the closed state can be equal or unequal. In addition, when there are four or more brush bars 120 and two or more of them are movable brush bars, these movable brush bars are in the second position, which can make some of the movable brush bars and adjacent brush bars in a closed state, and make another part of the movable brush bars and adjacent brush bars in an open state.

[0050] It should be noted that the aforementioned "approaching" is relative to "moving away". Usually, when the cleaning device 1 is in the normal cleaning mode, all the brush strips 120 are separated from each other (i.e., in a separated state). For example, all the brush strips 120 can be dispersed around the side brush holder 110 along the circumferential direction R1-R2. At this time, the position of the movable brush strip 122 is the first position. When the movable brush strip 122 moves to the second position, causing some or all of these brush strips 120 to approach each other and be in a closed state, the distance between the brush strips approaching each other is smaller than the distance when they are in a separated state. So, "approaching" is relative to "moving away".

[0051] During cleaning, filamentous debris may become entangled in the multiple brush strips 120, making it difficult for the filamentous debris to escape from the brush strips 120 under the action of the first negative pressure device. Furthermore, the spacing between the brush strips 120 gradually increases in a radially outward direction perpendicular to the first axis P1. Once filamentous debris is simultaneously entangled in multiple brush strips 120, it becomes even more difficult for the filamentous debris to escape automatically. However, in the present disclosure, at least a portion of the multiple brush strips 120 are movable brush strips 122. During the movement of the movable brush strip 122 from the first position to the second position, i.e., during the movement of the movable brush strip 122 and at least one of the adjacent brush strips 120 from the separated state to the closed state, the spacing between the connecting end 120a of the movable brush strip 122 and the connecting end 120a of the adjacent brush strip 120 (e.g., the fixed brush strip 121 in the figure) may remain the same or decrease compared to when the movable brush strip 122 is in the first position. However, the spacing between the free ends of the multiple brush strips 120 is significantly reduced. Therefore, if filamentary debris is entangled on both the movable brush strip 122 and the fixed brush strip 121 simultaneously, the filamentary debris can be easily dislodged after their free ends approach each other. Alternatively, the movable brush strip 122 can be switched back and forth between its first and second positions, causing the movable brush strip 122 and the fixed brush strip 121 to continuously move closer, further away, closer, further away... This can also help the filamentary debris to be easily dislodged by the side brush. This process can be referred to as untangling. Based on this, the cleaning device 1 using this side brush 10 can also have an untangling mode. In this embodiment, since the movable brush strip 122 and at least one of its adjacent brush strips 120 are in a closed state close to each other for untangling, a smaller difference between the first spacing between the brush strips in the closed state and the second spacing between the brush strips in the separated state may result in a less effective untangling effect. Those skilled in the art can select the value of the first spacing in the closed state as needed.

[0052] After at least part of the brush strip 120 is in the closed state, the filamentous waste can be separated from the side brush 10 by one or more of the following methods to achieve untangling:

[0053] 1. Continue to rotate the side brush 10 at the original speed or increase the rotation speed to utilize the centrifugal force of the rotation of the side brush 10 to untangle the strands.

[0054] 2. The suction force of a negative pressure device can be used to untangle the material. The negative pressure device can be located on the cleaning device that uses the side brush 10, or on a cleaning base station that is connected to the cleaning device. If both the cleaning device and the cleaning base station are equipped with negative pressure devices, they can be used simultaneously to untangle the material.

[0055] 3. In some cases, the surface to be cleaned may include a relatively rough area, such as carpet. When the cleaning device is moved over this area, the friction between the side brush 10 and the area can be utilized to disentangle the entanglement. If the area includes soft carpet, the driving wheel of the cleaning device may sink into the carpet, increasing the contact area and friction between the side brush 10 and the carpet. In either case, the side brush 10 can be rotated while the cleaning device is positioned over the area, thereby utilizing the friction between the surface to be cleaned and the side brush 10 to disentangle the entanglement.

[0056] 4. Protruding parts can be provided in the cleaning base station to provide the above-mentioned friction force.

[0057] The above unwinding methods can be used alone, simultaneously, or successively to improve the unwinding efficiency.

[0058] Typically, each brush strip 120 may include a connecting arm 120c and a flexible bristle strip 120e. The first end of the connecting arm 120c is connected to the side brush holder 110, and the bristle strip 120e is connected to the second end of the connecting arm 120c. The first end of the connecting arm 120c forms the aforementioned connecting end 120a, and the end 120b of the bristle strip 120e forms the aforementioned free end. For example, the connecting arm 120c may be made of a hard material, more specifically, hard rubber or hard plastic. In order to connect to the side brush holder 110, the connecting arm 120c may generally be shaped. Therefore, the connecting arm 120c may be formed using an injection molding process. Optionally, an intermediate arm 120d may be connected between the connecting arm 120c and the bristle strip 120e. The intermediate arm 120d may have a certain degree of flexibility, for example, it may be made of a soft thermoplastic polyurethane (TPU) elastomer. The middle arm 120d not only secures the bristles 120e but also extends the length of the brush bar 120 and increases its flexibility. Typically, the bristles 120e and the middle arm 120d are both slender and extend in a generally consistent manner. Of course, the middle arm 120d can be omitted, with the bristles 120e connected directly to the connecting arm 120c. Each brush bar 120 typically comprises multiple bristles 120e, which radiate from the base connected to the connecting arm 120c or the middle arm 120d to the distal end 120b. Each bristle bar 120e can be straight; the distal end 120b of the bristle bar 120e can be curved backward relative to the direction of rotation during normal cleaning; or the distal end 120b of the bristle bar 120e can be curved toward the ground.

[0059] When the movable brush strips 122 are in the second position, closing the multiple brush strips 120, the spacing between the bristles 120e of adjacent brush strips 120 in a radially outward direction perpendicular to the first axis P1 remains unchanged or decreases. For example, if the bristles 120e are straight, the bristles 120e of adjacent brush strips 120 after closing can be parallel to each other, or the spacing between the bristles 120e decreases toward the ends 120b of the bristles 120e. This makes it easier to disentangle filamentous waste from the brush strips 120.

[0060] It should be noted that, in the present disclosure, "the spacing between the bristles of the movable brush strip 122 and at least one of the adjacent brush strips is reduced", which can be understood as that the spacing between the bristles of the movable brush strip 122 and at least one of the adjacent brush strips is roughly gradually reduced along the radial outward direction perpendicular to the first axis, but it is not ruled out that the spacing between the bristles of the movable brush strip 122 and at least one of the adjacent brush strips is first gradually reduced, and then slightly increased near the end or end position of the brush strip.

[0061] Of course, when multiple brush strips 120 are in a closed state, the spacing between the bristles 120e of adjacent brush strips 120 along the aforementioned radially outward direction can also be increased, so that the untangling effect can still be achieved. Compared with the above-mentioned situation where "the spacing between the bristles 120e of adjacent brush strips 120 remains unchanged or decreases", the increase in spacing may slightly increase the difficulty of untangling, but by selecting a suitable untangling method (see the four methods described above), an ideal untangling effect can be achieved. Optionally, adjacent brush strips 120 can also be crossed, and at the intersection, they can be arranged up and down. Along the aforementioned radially outward direction, the spacing between adjacent brush strips 120 can first decrease and then increase.

[0062] It should be noted that the spacing between the bristles 120e of any two adjacent brush strips 120, the angle between the bristles 120e of any two adjacent brush strips 120, and the angle between the movable brush strip 122 and the virtual ray mentioned later, etc. described in this disclosure, all use the longitudinal center line of the brush strip 120 involved as the reference line for the bristle strip position. The "longitudinal center line" refers to the center line of the brush strip 120 that is perpendicular to the width direction of its bristle strip 120e. The spacing between the bristle strip 120e of the movable brush strip 122 and the bristle strip 120e of at least one of the adjacent brush strips 120 refers to: the spacing between the longitudinal center line of the movable brush strip 122 and the longitudinal center line of at least one of the brush strips 120 adjacent to the movable brush strip 122.

[0063] Exemplarily, when the movable brush bar 122 is in the first position, the angle between the bristles 120e of the movable brush bar 122 and the bristles 120e of at least one of the adjacent brush bars is [120°, 165°]. In the illustrated embodiment, when the movable brush bar 122 is in the first position, the angle between the bristles 120e of the movable brush bar 122 and the bristles 120e of the fixed brush bar 121 is [120°, 165°]. This allows the multiple brush bars 120 to be more dispersed, achieving a better cleaning effect. Exemplarily, when the movable brush bar 122 is in the first position, the angle between the bristles 120e of the movable brush bar 122 and the bristles 120e of the fixed brush bar 121 is 150°. Exemplarily, when the movable brush bar 122 is in the second position, the angle between the bristles 120e of the movable brush bar 122 and the bristles 120e of at least one of the adjacent brush bars is [0°, 20°]. In the illustrated embodiment, when the movable brush strip 122 is in the second position, the angle between the movable brush strip 122 and the bristle strip 120e of the fixed brush strip 121 is [0°, 20°], which is more conducive to untangling. For example, when the movable brush strip 122 is in the second position, the angle between the bristle strip 120e of the movable brush strip 122 and the bristle strip 120e of the fixed brush strip 121 is 15°.

[0064] For example, the force that moves the movable brush bar 122 can come from one or more of a driving source such as a motor or a hydraulic device, friction between the brush bar and the surface to be cleaned, inertia, etc. Those skilled in the art can reasonably select one or more of the above methods as needed.

[0065] In the scheme of using a driving source to close the brush strip 120, it may be necessary to additionally provide a driving source, which can be provided on the side brush 10 (for example, the side brush holder 110) or on the body 20. Of course, it is also possible to provide a suitable transmission structure so that the driving force of the overall rotation of the side brush 10 acts on the movable brush strip 122, making the movable brush strip 122 movable.

[0066] In a scheme that utilizes inertia to close the brush strip 120, for example, a damping member is provided between the movable brush strip 122 and the side brush holder 110. This damping member's resistance must be overcome when the movable brush strip 122 switches to its second position. In normal cleaning mode, the side brush 10 rotates at a first speed, during which the movable brush strip 122 can remain in the first position due to resistance. To close the brush strip 120, the side brush 10 can be rotated at a second speed, greater than the first speed and in the same direction. Inertia allows the movable brush strip 122 to maintain its initial motion, allowing it to overcome resistance and move to the second position, achieving the goal of closing the brush strip. This approach eliminates the need for an additional drive source and can utilize the existing motor. While this may require a significant increase in the speed of the side brush 10 and potentially lead to increased noise during unwinding, the advantage is that virtually no structural modifications are required to the side brush 10 or the cleaning equipment incorporating it. To detach the side brush, the movable brush strip 122 can be manually moved to the first position.

[0067] The solution of closing the brush strip 120 by utilizing the friction between the brush strip 120 and the surface to be cleaned may be relatively simple and will be described in more detail below. Figures 3A to 3B and Figure 5A The side brush holder 110 may be provided with a first limiting portion 113 and a second limiting portion 114. The first limiting portion 113 and the second limiting portion 114 are spaced apart along the circumferential direction R1-R2, and the movable brush strip 122 can move freely between the first limiting portion 113 and the second limiting portion 114. The circumferential direction R1-R2 includes a first circumferential direction R1 and a second circumferential direction R2 that are opposite. When the side brush holder 110 rotates along the first circumferential direction R1, the movable brush strip 122 abuts against the first limiting portion 113 to be in the first position; and when the side brush holder 110 rotates along the second circumferential direction R2, the movable brush strip 122 abuts against the second limiting portion 114 to be in the second position.

[0068] The first and second limiting portions 113, 114 restrict the movement space of the movable brush strip 122. The movable brush strip 122 can move freely between the first and second limiting portions 113, 114. The first and second limiting portions 113, 114 respectively restrict the two end points of free movement, namely the first and second positions. "Free movement" means that the movable brush strip 122 encounters little resistance during movement, which is almost negligible. Thus, when the side brush 120 is in normal cleaning mode, it rotates in a first circumferential direction R1 (referred to as forward rotation). Resistance from the ground causes the movable brush strips 122 to abut against the first stopper 113, placing the multiple brush strips 120 in a separated state. When the side brush 120 is in unwinding mode, it rotates in a second circumferential direction R2 (referred to as reverse rotation). Resistance from the ground causes the movable brush strips 122 to move toward the second stopper 114 and ultimately abut against it, placing the brush strips 120 in a closed state. In this way, the position of the movable brush strips 122 can be adjusted by the forward and reverse rotation of the side brush 120 and by the friction from the surface to be cleaned, achieving the closing and separation of the multiple brush strips 120. This method of driving the movable brush strips 122 between the first and second positions is relatively simple and does not significantly increase the manufacturing cost, structural complexity, or weight of the side brush 120, making it more economical and practical. Of course, the present disclosure does not exclude the use of other methods to enable the movable brush bar 122 to move between the first position and the second position.

[0069] For example, the first limiting portion 113 and the second limiting portion 114 can be formed by one or more of a protrusion, a baffle, a groove, etc. provided on the side brush holder 110. Figures 3A to 3B and Figure 5A In the illustrated embodiment, the side brush holder 110 may be provided with a first opening 115, through which at least a portion of the connecting arm 120c of the movable brush strip 122 may extend into the side brush holder 110, thereby being movably connected to the side brush holder 110. The first opening 115 may generally have a certain length along the circumferential direction R1-R2, with a first stopper 113 and a second stopper 114 formed at both ends of the first opening 115 along the circumferential direction R1-R2, respectively.

[0070] In some embodiments, for ease of installation, the side brush holder 110 typically includes an upper housing 111 and a lower housing 112. A first opening 115 can be formed on the lower housing 112, and the upper and lower housings 111 and 112 are fastened together to seal the first opening 115. This facilitates installation of the movable brush strip 122.

[0071] In some other embodiments, the side brush holder 110 may include a left shell and a right shell, the first opening may be formed on the left shell or the right shell, or a part of the first opening may be formed on the left shell, and another part of the first opening may be formed on the right shell, and the left shell and the right shell may be buckled together to form the first opening.

[0072] For example, see Figure 4A and Figure 6A As shown, the movable brush bar 122 is in the first position, and the radial distance J between the end 120b of the bristle bar 120e and the first axis P1 has a first value J1; Figure 4B and Figure 6B As shown, when the movable brush strip 122 is in the second position, the radial distance J between the end 120b of the bristle strip 120e and the first axis P1 has a second value J2. The first value J1 is smaller than the second value J2. In other words, after the movable brush strip 122 moves to the second position, the radial distance J between the end 120b of the bristle strip 120e and the first axis P1 can be increased. This increase in radial distance J can expand the cleaning range of the side brush 10. The cleaning range of the side brush 10 is determined by the brush strip 120 with the largest radial distance J among all the brush strips 120 it includes. In the illustrated embodiment, the value of radial distance J (second value J2) is the largest when the movable brush strip 122 is in the second position, and the cleaning range at this time covers the range with P1 as the center and J2 as the radius.

[0073] For example, in a narrow area such as a corner, even if the cleaning device is completely against the wall, the narrow area cannot be completely within the cleaning range of the side brush 10. Figure 6A As shown, when the movable brush bar 122 is in the first position, the cleaning range of the side brush 10 is S1, so a dead angle area S2 that cannot be cleaned is formed in the corner. Figure 6B As shown, when the movable brush bar 122 is in the second position, the cleaning range of the side brush 10 increases to S3, and accordingly, the blind spot area S4 becomes smaller. Therefore, when the cleaning device is moved to this narrow area, the movable brush bar 122 can be moved to the second position, increasing the radial distance J between the end 120b of the bristle strip 120e of the movable brush bar 122 and the first axis P1, thereby expanding the cleaning range of the side brush 10 and improving the cleanliness of the cleaning surface to a certain extent.

[0074] It should be noted that, when there are multiple movable brush strips 122, some or all of the movable brush strips 122 may have an increased radial distance J after moving to the second position, thereby increasing the cleaning range. The following will take an embodiment with only one movable brush strip 122 as an example to illustrate the principle of the present disclosure.

[0075] For example, Figure 4A and Figure 6AAs shown, when the movable brush bar 122 is in the first position, the radial distance J from the end 120b of the bristle strip 120e of each brush bar 120 to the first axis P1 has the same first value J1. As shown in the figure, the radial distance J between the end 120b of the bristle strip 120e of the fixed brush bar 121 and the movable brush bar 122 both has the first value J1. When the cleaning device 1 is in normal cleaning mode, the movable brush bar 122 can be moved to the first position, and the radial distance J of each brush bar 120 is equal. This does not change the design of the existing cleaning device 1. In addition, since the side brush 10 rotates while the cleaning device moves forward when performing a cleaning task, when the radial distance J of all brush bars 120 is the same, the contact areas of different brush bars 120 of the side brush 10 and the surface to be cleaned have the greatest possible overlap, thus achieving a better cleaning effect. Of course, when the movable brush bar 122 is in the first position, the radial distance J of all the brush bars 120 may also be different. In this case, the walking speed of the cleaning equipment can be appropriately reduced so that the contact areas of different brush bars 120 and the surface to be cleaned overlap as much as possible. This disclosure does not exclude this embodiment.

[0076] Since the movable brush bar 122 is in the first position in order to enable the cleaning device 1 to perform a regular cleaning task, therefore, exemplarily, during the process of the cleaning device 1 performing a cleaning task, and when the movable brush bar 122 is in the first position, the side brush 10 rotates, and the movable brush bar 122 contacts the surface to be cleaned. As described above, when the movable brush bar 122 is in the second position, the side brush 10 can also perform a cleaning task. Thus, exemplarily, during the process of the cleaning device 1 performing a cleaning task, and when the movable brush bar 122 is in the second position, the side brush 10 rotates, and the movable brush bar 122 can also contact the surface to be cleaned. In the above embodiment, in order to reduce the area of ​​the dead angle area S2 when cleaning a narrow area such as a corner, as Figure 6B As shown, when the movable brush bar 122 is in the second position, the cleaning range of the side brush 10 increases to S3. However, in other embodiments, the second position of the movable brush bar 122 does not necessarily increase the radial distance J between the end 120b of the bristle strip 120e of the movable brush bar 122 and the first axis P1. For example, the radial distance J can remain unchanged or decrease. In short, the movable brush bar 122 can still perform cleaning tasks in the second position. This not only allows for better detangling by utilizing the friction between the movable brush bar 122 and the surface to be cleaned, but also allows the surface to be cleaned during the process.

[0077] For example, for an active brush strip whose radial distance J increases after being moved, such as the active brush strip 122, when the active brush strip 122 is in the first position and the second position, the length of the portion exposed outside the side brush holder 110 can be different to adjust the value of the radial distance J between the end 120b of the bristle strip 120e and the first axis P1. Generally, the side brush holder 110 is substantially circular, such as Figure 4A-4B As shown, the radial distance J of the movable brush strip 122 can be changed by adjusting the length of the movable brush strip 122 retracted into the side brush holder 110 .

[0078] Optionally, the radial distance J of the movable brush strip 122 can be changed by a drive source such as a motor or hydraulic device. For example, the drive source can be used to drive the movable brush strip 122 to move radially, or the drive source can be used to drive the movable brush strip 122 to extend or retract its length. This drive source can be the same as or different from the drive source (if any) that drives the movable brush strip 122 between the first position and the second position. Alternatively, the movable brush strip 122 can be manually moved or extended in the radial direction. When cleaning corners, the length of the movable brush strip 122 exposed outside the side brush holder 110 can be manually increased.

[0079] The present disclosure provides a mechanical design solution that can automatically increase the length of the movable brush bar 122 exposed outside the side brush holder 110 as the movable brush bar 122 moves from a first position to a second position. This does not require an additional drive source, nor does it require the movable brush bar 122 to be designed to be retractable. Therefore, the structure is simpler and the cost is lower. This mechanical design solution will be described in detail below.

[0080] Exemplarily, the connecting arm 120c of the movable brush bar 122 is rotatably connected to the side brush holder 110 about the second axis P2 so as to be movable between a first position and a second position.

[0081] In order to realize the rotation of the movable brush bar 122 from the first position to the second position, the radial distance J of the movable brush bar 122 is lengthened. Figures 6A to 6B As shown, a transverse plane perpendicular to the first axis P1 and passing through the geometric center of the side brush holder 110 is determined. On this transverse plane, the intersection of the first axis P1 and the transverse plane is defined as the first intersection point (see P1), and the intersection of the second axis P2 and the transverse plane is defined as the second intersection point (see P2). A virtual ray X1 is determined with the second intersection point as its endpoint, and the reverse extension of the virtual ray X1 passes through the first intersection point.

[0082] like Figure 6AAs shown, when the movable brush strip 122 is in the first position, the line X2 between the end 120b of the brush strip and the second intersection point has a first angle θ1 with the virtual ray X1. Figure 6B As shown, when the movable brush strip 122 is in the second position, a second angle θ2 is formed between the line X2 connecting the end 120b of the bristle strip and the second intersection point and the virtual ray X1. The first angle θ1 is greater than the second angle θ2. Because the second axis P2 of rotation of the movable brush strip 122 is eccentrically arranged relative to the first axis P1 of rotation of the side brush holder 110, when the angle between the line X2 connecting the end 120b of the bristle strip 122 and the second intersection point and the virtual ray X1 is zero, the portion of the movable brush strip 122 exposed outside the side brush holder 110 is the longest. Conversely, when the angle between the line X2 and the virtual ray X1 is 180 degrees, the portion of the movable brush strip 122 exposed outside the side brush holder 110 is the shortest. When the angle between the connecting line X2 and the virtual ray X1 is between 0 and 180 degrees, the smaller the angle, the longer the portion of the movable brush strip 122 protrudes from the side brush holder 110. Conversely, the larger the angle, the smaller the portion of the movable brush strip 122 protruding from the side brush holder 110. Therefore, in a transverse plane perpendicular to the first axis P1 and passing through the geometric center of the side brush holder 110, by setting the first axis P1 and the second axis P2 to be non-co-points and rationally selecting the first angle θ1 and the second angle θ2, the radial distance J of the movable brush strip 122 can be increased as the movable brush strip 122 rotates from the first position to the second position. Furthermore, the first angle θ1 and the second angle θ2 can be reversely deduced based on the desired increase in radial distance J.

[0083] The active brush bar 122 can have symmetrical positions on both sides of the virtual ray X1, so that the angles between the connecting line X2 and the virtual ray X1 are equal. For example, the active brush bar 122 can be located on both sides of the virtual ray X1 in the first position and the second position, respectively. Therefore, the active brush bar 122 can rotate a larger angle when rotating from the first position to the second position, so that when the active brush bar 122 is in the second position, the active brush bar 122 can be closer to the fixed brush bar 121; and when the active brush bar 122 is in the first position, the active brush bar 122 can be more dispersed from the fixed brush bar 121. It should be noted that the present disclosure does not exclude an embodiment in which the active brush bar 122 can be located on the same side of the virtual ray X1 in the first position and the second position.

[0084] When the first angle θ1 is greater than the second angle θ2, when the movable brush bar 122 is in the second position, the second angle θ2 can be zero or any other angle. When the movable brush bar 122 is in the first position, the movable brush bar 122 and the fixed brush bar 121 can be located on both sides of the virtual ray X1, respectively, so that the movable brush bar 122 can be more dispersed from the fixed brush bar 121. Since the angle between the dispersed movable brush bar 122 and the fixed brush bar 121 is larger, in the normal cleaning mode, compared with the case where the angle between the movable brush bar 122 and the fixed brush bar 121 is smaller, the brush bar can be rotated to the same position more frequently under the same side brush speed, thereby improving cleaning efficiency.

[0085] When the first angle θ1 is greater than the second angle θ2, when the movable brush bar 122 is in the first position, the first angle θ1 can be 180 degrees or any other angle. When the movable brush bar 122 is in the second position, the movable brush bar 122 and the fixed brush bar 121 can be located on the same side of the virtual ray X1, so that the movable brush bar 122 can be closer to the fixed brush bar 121, thereby improving the unwinding effect.

[0086] In the above embodiment, the second axis P2 of rotation of the active brush strip 122 is eccentrically positioned relative to the first axis P1 of rotation of the side brush holder 110. That is, in a transverse plane perpendicular to the first axis P1 and passing through the geometric center of the side brush holder 110, the second axis P2 is spaced apart from the first axis P1. In other embodiments (not shown), the second axis P2 may be collinear with the first axis P1; or, although the second axis P2 is not collinear with the first axis P1, the second axis P2 intersects the first axis P1 in a transverse plane perpendicular to the first axis P1 and passing through the geometric center of the side brush holder 110. In this way, when the active brush strip 122 rotates between the first position and the second position, the radial distance J of the active brush strip 122 does not substantially change.

[0087] For example, see Figure 4A and Figure 6A When the movable brush bar 122 is in the first position, the extension line of the bristles 120e of each brush bar 120 in the opposite direction of their extension direction does not pass through the first axis P1. In other words, the bristles 120e of each brush bar 120 do not extend radially relative to the first axis P1. If the movable brush bar 122 is in the first position, its bristles 120e extend radially, generally along the virtual ray X1. This may result in the movable brush bar 122 being exposed outside the side brush holder 110 at its longest length in the first position. As a result, after the movable brush bar 122 moves to the second position, it cannot be further lengthened, thereby preventing the cleaning area from being expanded.

[0088] Illustratively, when the movable brush bar 122 is in the first position, the bristle strip 120e of each brush bar 120 is projected onto a transverse plane perpendicular to the first axis P1 and passing through the geometric center of the side brush holder 110, extending tangentially along the edge of the side brush holder 110. If the movable brush bar 122 is in the first position, the angle between the line connecting the second intersection of its second axis of rotation P2 with the transverse plane and the end 120b of its bristle strip and the inverse extension of the virtual ray X1 is acute. This requires sufficient space in the central area of ​​the side brush holder 110 for the movable brush bar 122 to pass through, which can affect the structure within the side brush holder 110. Illustratively, the trapezoidal hole in the central area of ​​the side brush holder 110 is designed to mate with a shaft on the body 20 and connect to the body 20. The inventors have discovered that when the movable brush strips 122 are in the first position, the projection of the bristle strips 120e of each brush strip 120 on the transverse plane extends tangentially to the edge of the side brush holder 110. This effectively utilizes the space within the side brush holder 110 without affecting the existing structure of the side brush holder 110. Furthermore, in this case, the length of the movable brush strips 122 hidden within the side brush holder 110 is relatively suitable, while the length exposed outside the side brush holder 110 in the second position is relatively moderate.

[0089] like Figures 3A to 3B As shown, a pair of rotational shafts 120f may be provided on the connecting arm 120c of the movable brush bar 122. A first upper mounting hole 1112 may be provided on the upper housing 111, and a first lower mounting hole 1122 may be provided on the lower housing 112. The pair of rotational shafts 120f are respectively inserted into the first upper mounting hole 1112 and the first lower mounting hole 1122, so that the movable brush bar 122 is rotatably connected to the side brush holder 110 about the second axis P2. In other embodiments not shown, the movable brush bar 122 may be rotatably connected to the side brush holder 110 in any other suitable manner.

[0090] Optionally, the multiple brush strips 120 may have the same structure to reduce the number of parts and components, and reduce processing, inventory, and management costs. When the multiple brush strips 120 are all movable brush strips, they can be installed on the side brush holder 110 in the same manner. When a portion of the multiple brush strips 120 is a fixed brush strip 121, such as Figures 3A to 3BAs shown, a pair of rotating shafts 120f may also be provided on the connecting arm 120c of the fixed brush strip 121. A second upper mounting hole 1113 may be provided on the upper shell 111, and a second lower mounting hole 1123 may be provided on the lower shell 112. The pair of rotating shafts 120f are respectively inserted into the second upper mounting hole 1113 and the second lower mounting hole 1123. In this case, the fixed brush strip 121 is rotatable around the third axis P3. In order to prevent the fixed brush strip 121 from rotating relative to the side brush holder 110, a stop structure may be provided on the side brush holder 110 so that the position of the fixed brush strip 121 relative to the side brush holder 110 is fixed. See Figure 5B For example, the upper shell 111 may be provided with a first protruding tooth 1111 and a stop protrusion 1114. Along the circumferential direction R1-R2, the first protruding tooth 1111 and the stop protrusion 1114 may be respectively on both sides of the fixed brush strip 121, thereby fixing the fixed brush strip 121 at a desired position.

[0091] It should be noted that when the structures of multiple brush strips 120 are the same, the structures of the first upper mounting hole 1112 and the second upper mounting hole 1113 are the same, the structures of the first lower mounting hole 1122 and the second lower mounting hole 1123 are the same, and the structures of the two rotating shafts 120f are the same.

[0092] In the case where a plurality of brush strips 120 have the same structure, such as Figure 11A and Figure 11B As shown, in a transverse plane perpendicular to the first axis P1 and passing through the geometric center of the side brush holder 110, if the second axis P2 intersects the first axis P1, the movable brush bar 122 may be in the second position (see Figure 11B ), its connecting arm 120c interferes with the connecting arm 120c of the fixed brush strip 121. This prevents the movable brush strip 122 and the fixed brush strip 121 from being too close together, which may affect the unwinding effect. In this case, the design can be such that the connecting arm 120c of the movable brush strip 122 and the connecting arm 120c of the fixed brush strip 121 can at least partially overlap along the first axis P1 (i.e., the direction perpendicular to the paper surface). Specifically, when the side brush 10 is installed on a cleaning device, the connecting arm 120c of the movable brush strip 122 and the connecting arm 120c of the fixed brush strip 121 are arranged one above the other, so that the two can be relatively close.

[0093] Optionally, the second axis P2 of rotation of the movable brush bar 122 is movable in a direction toward and away from other brush bars in the plurality of brush bars (e.g., the fixed brush bar 121), so that at least one of the movable brush bars 122 is movable between a first position and a second position. The principles of the present disclosure will be described below using the illustrated embodiment with only one movable brush bar 122 and one fixed brush bar 121 as an example. Based on the following description, those skilled in the art will understand the possibility of providing multiple movable brush bars 122 and / or multiple fixed brush bars 121. When multiple movable brush bars 122 are present, some or all of them may be movable between the first position and the second position, and their second axis P2 is movable.

[0094] like Figure 7A As shown, when the movable brush bar 122 is in the first position, there is a first distance D1 between the second axis P2 of the movable brush bar 122 and the connecting arm 120c of the fixed brush bar 121. Figure 7B As shown, when the movable brush strip 122 is in the second position, a second distance D2 is defined between its second axis P2 and the connecting arm 120c of the fixed brush strip 121. The first distance D1 is greater than the second distance D2. Thus, when the movable brush strip 122 rotates from the first position to the second position, the second axis P2 of the movable brush strip 122 (i.e., the connecting end 120a) can be closer to the connecting arm 120c of the fixed brush strip 121, thereby achieving a better untangling effect.

[0095] For example, a position adjustment structure may be provided between the side brush holder 110 and the connecting arm 120c of at least one of the movable brush strips 122. The connecting arm 120c of at least one of the movable brush strips 122 may be movably connected to the side brush holder 110 via the position adjustment structure. The position adjustment structure is used to adjust the relative position of at least one of the movable brush strips 122 and the side brush holder 110, and to move the second axis P2 in a direction closer to and away from the other brush strips. When there are multiple movable brush strips 122, a position adjustment structure may be provided between the side brush holder 110 and the movable brush strip or strips 122 whose spacing between the rotation axis P2 and the other brush strips 120 is desired to be changed. The principles of the present disclosure will be explained hereinafter by taking the illustrated example of a movable brush strip 122 and a fixed brush strip 121.

[0096] Illustratively, the position adjustment structure can be a mechanical structure including a driver or an unpowered mechanical structure. In embodiments where the position adjustment structure includes a driver, the driver (e.g., a motor) can be used to drive the second axis P2 toward and away from the fixed brush strip 121. However, to achieve unwinding, the movement of the movable brush strip 122 between the first and second positions also includes the ability to close the movable brush strip 122 and the fixed brush strip 121 along a circumferential direction. This closing in the circumferential direction is primarily determined by the change in the angle of the movable brush strip 122 relative to the side brush holder 110. After closing, the angle between the movable brush strip 122 and the fixed brush strip 121 decreases. This "closing" can be achieved using the force described above to move the movable brush strip 122, i.e., this force can be derived from one or more of a drive source such as a motor or hydraulic device, friction between the brush strip and the surface to be cleaned, inertia, etc. Of course, this "closing" can also be achieved by the driver described above. An embodiment of an unpowered mechanical structure will be described in detail later. In this embodiment, the unpowered mechanical structure can not only change the position of the second axis P2 but also realize the closing and separation of the movable brush bar 122 and the fixed brush bar 121 .

[0097] In addition, the above position adjustment structure can also achieve that after the movable brush bar 122 moves from the first position to the second position, the radial distance of the movable brush bar 122 becomes larger. 7A to 7B In the illustrated embodiment, when the movable brush bar 122 is in the first position, the longer portion of the movable brush bar 122 can be hidden in the side brush holder 110; and when the movable brush bar 122 is in the second position, the smaller portion of the movable brush bar 122 can be hidden in the side brush holder 110. Therefore, when the movable brush bar 122 rotates from the first position to the second position, the radial distance of the movable brush bar 122 can increase from J1 to J2, thereby expanding the cleaning area of ​​the side brush 10.

[0098] The method of changing the hiding of the active brush bar 122 in different positions is similar to Figures 6A to 6B The embodiment shown. Specifically, a transverse plane perpendicular to the first axis P1 and passing through the geometric center of the side brush holder 110 is determined. On the transverse plane, the intersection of the first axis P1 and the transverse plane is defined as the first intersection (see P1), and the intersection of the second axis P2 and the transverse plane is defined as the second intersection (see P2). A virtual ray X1 is determined with the second intersection as the endpoint, and the reverse extension line of the virtual ray X1 passes through the first intersection. Figure 7A As shown, when the movable brush strip 122 is in the first position, the line X2 between the end 120b of the brush strip and the second intersection point has a first angle θ1 with the virtual ray X1. Figure 7BAs shown, when the movable brush strip 122 is in the second position, a second angle θ2 is formed between the line X2 connecting the end 120b of the brush strip and the second intersection point and the virtual ray X1. The first angle θ1 is greater than the second angle θ2.

[0099] In the case where the position adjustment structure adopts a non-powered mechanical structure, in one set of embodiments, the position adjustment structure may include a slide groove 116 provided on the side brush holder 110, and a rotating shaft 120f on the connecting end 120a of the aforementioned movable brush bar 122. The rotating shaft 120f may be rotatably and slidably connected to the slide groove 116. Figure 7A As shown, when the movable brush bar 122 is in the first position, the rotation axis 120f is located at the first end 116a of the chute 116. When the side brush holder 110 rotates along the first circumferential direction R1, the movable brush bar 122 can abut against the first end 116a of the chute 116 and the movable brush bar 122 can be in the first position. Figure 7B As shown, when the movable brush bar 122 is in the second position, the rotation axis 120f is located at the second end 116b of the chute 116. When the side brush holder 110 rotates in the second circumferential direction R2, the movable brush bar 122 can abut against the second end 116b of the chute 116 and be in the second position. The friction between the movable brush bar 122 and the surface to be cleaned can cause the movable brush bar 122 to slide within the chute 116.

[0100] In another embodiment, the chute 116 and the rotational axis 120f may be interchanged on the side brush holder 110 and the movable brush bar 122. Specifically, the position adjustment structure may include a rotational axis disposed on the side brush holder 110 and centered about the second axis, and a chute disposed on the connecting arm of the movable brush bar 122. The rotational axis may be rotatably and slidably connected to the chute. When the movable brush bar 122 is in the first position, the rotational axis may slide to the first end of the chute; and when the movable brush bar 122 is in the second position, the rotational axis may slide to the second end of the chute.

[0101] In the presence of the chute 116, as Figures 8A to 8B As shown, the distance between the first end 116a of the chute 116 and the first axis P1 can be smaller than the distance between the second end 116b of the chute 116 and the first axis P1. In this case, the distances between the two ends of the chute 116 and the first axis P1 can be different, so that the length of the movable brush strip 122 hidden in the side brush holder 110 varies in different positions. This makes the length of the movable brush strip 122 hidden in the side brush holder 110 in the first position longer than the length of the movable brush strip 122 hidden in the side brush holder 110 in the second position. As a result, after the movable brush strip 122 moves to the second position, its radial distance J increases, thereby expanding the cleaning area.

[0102] Normally, the side brush holder 110 is spaced apart from the surface to be cleaned, and the end 120b of the bristle strip 120e of the brush bar 120 needs to contact the surface to be cleaned. Figure 9 As shown, radially outward, the angle between the bristle strip 120e of the brush strip 120 and the first axial direction Z1 is acute. The first axial direction Z1 is parallel to the first axis P1 and points toward the surface to be cleaned, and in the figure, is downward. The descriptions of orientation in this case are based on the normal use of the cleaning device 1, for example, when the cleaning device 1 is placed on the surface to be cleaned so that the side brush 10 can contact the surface to be cleaned. The angle between the second axis P2 and the first axis P1 is such that when the movable brush strip 122 is in the first position, the angle between the bristle strip 120e and the first axial direction Z1 is greater than the angle between the bristle strip 120e and the first axial direction Z1 when the movable brush strip 122 is in the second position. When the movable brush strip 122 is in the first position, the angle between the bristle strip 120e and the first axial direction Z1 can be similar to the angle between the fixed brush strip 121 and the first axial direction Z1. When the movable brush bar 122 is in the second position, the angle between its bristle strip 120e and the first axial direction becomes smaller, so that the contact portion between the end of the bristle strip 120e of the movable brush bar 122 and the surface to be cleaned becomes larger. Specifically, the degree of inclination of the movable brush bar 122 relative to the surface to be cleaned when it is in the first position is smaller than the degree of inclination of the movable brush bar 122 relative to the surface to be cleaned when it is in the second position. In the aforementioned multiple embodiments, when the movable brush bar 122 is in the second position, the length of its connecting arm 120c extending outside the side brush holder 110 becomes longer, so that the radial distance J between the end 120b of the bristle strip 120e and the first axis P1 becomes longer, thereby expanding the cleaning area. Figure 1C As shown, the side brush holder 110 is mounted within the recessed portion 25 at the bottom of the body 20. When the movable brush bar 122 is in the second position, its connecting arm 120c extends further beyond the side brush holder 110, potentially causing the connecting arm 120c to scrape against the bottom of the body 20. Therefore, the second axis P2 can be configured to be inclined. This allows the movable brush bar 122 to tilt downward more when in the second position, minimizing scraping against the bottom of the body 20.

[0103] The side brush holder 110 may include a housing, see Figure 5A and Figure 5B The housing is formed with a mounting cavity for mounting the connecting arm 120 c of the brush strip 120 . Exemplarily, the connecting arms 120 c of the fixed brush strip 121 and the movable brush strip 122 can be extended into the mounting cavity and connected to the side brush holder 110 . Figure 5A The housing is shown to have a first opening 115, Figure 5BThe housing is shown to have a second opening 117. The connecting arm 120c of the movable brush strip 122 can extend into the mounting cavity through the first opening 115 and connect to the side brush holder 110. The connecting arm 120c of the fixed brush strip 121 can extend into the mounting cavity through the second opening 117 and connect to the side brush holder 110.

[0104] The connecting arm 120c of the fixed brush bar 121 and the movable brush bar 122 has an upper surface 120j (see Figure 3A and Figure 3B ). The upper surface 120j faces the second axial direction Z2, which is opposite to the first axial direction Z1. The housing has a lower surface facing the upper surface 120j. For the movable brush bar 122, the housing has a first lower surface 115a facing the upper surface 120j (see Figure 5A After the movable brush bar 122 is mounted to the side brush holder 110 , a first gap is formed between the first lower surface 115a and the upper surface 120j. When the connecting arm 120c of the movable brush bar 122 passes through the first opening 115, the first lower surface 115a is the upper edge of the first opening 115.

[0105] It should be noted that the first gap described in the present disclosure refers to a gap that can at least allow long filamentous garbage (such as hair) to enter the shell.

[0106] In order to prevent the long filamentous garbage from being clamped in the first gap, for example, Figure 2B and Figures 3A to 3B As shown, a flange 120g can be provided on the movable brush bar 122, and the flange 120g protrudes toward the end of the strip 120e. The root of the flange 120g is connected to the movable brush bar 122, and the head formed by the protrusion of the flange 120g is closer to the end of the strip 120e than its root. A groove 120h is formed between the flange 120g and the upper surface 120j of the movable brush bar 122. The groove 120h is located on the lower side of the flange 120g, and the first gap between the first lower surface 115a and the upper surface 120j is located on the upper side of the flange 120g. The inventors have found that in actual use, long filamentous garbage above the movable brush bar 122 is easily stuck in the first gap. Therefore, a flange 120g is provided above the movable brush bar 122. The groove 120h formed on the lower side of the flange 120g can confine the filamentous waste therein, or partially confine it therein, to prevent the filamentous waste from being completely stuck in the first gap.

[0107] Similarly and optionally, the connecting arm 120c of the fixed brush strip 121 has an upper surface 120j (see Figure 3A and Figure 3B ). The upper surface 120j faces the second axial direction Z2. The housing has a second lower surface 117a (see Figure 5B). After the fixed brush strip 121 is installed on the side brush holder 110, a first gap is formed between the second lower surface 117a and the upper surface 120j. When the connecting arm 120c of the fixed brush strip 121 passes through the second opening 117, the second lower surface 117a is the upper edge of the second opening 117. In order to prevent long filamentous garbage from being clamped in the first gap, such as Figure 2B and Figures 3A to 3B As shown, a flange 120g can be provided on the fixed brush strip 121, and the flange 120g protrudes toward the end of the strip 120e. The root of the flange 120g is connected to the fixed brush strip 121, and the head formed by the protrusion of the flange 120g is closer to the end of the strip 120e than its root. A groove 120h is formed between the flange 120g and the upper surface 120j of the fixed brush strip 121. The groove 120h is located on the lower side of the flange 120g, and the first gap between the second lower surface 117a and the upper surface 120j is located on the upper side of the flange 120g. In this way, filamentous garbage above the fixed brush strip 121 can be prevented from being easily stuck in the first gap. The groove 120h formed on the lower side of the flange 120g can confine the filamentous garbage therein, or partially confine it therein, to prevent the filamentous garbage from being completely stuck in the first gap.

[0108] As previously mentioned, for ease of assembly, the housing may include an upper housing 111 and a lower housing 112 that engage with each other. The aforementioned mounting cavity, first opening 115, and second opening 117 may be formed by the upper housing 111 and the lower housing 112. Although the split structure of the side brush holder 110 simplifies the assembly process, a gap may exist at the interface between the upper housing 111 and the lower housing 112. If long filamentary waste is caught in the gap, it may increase the difficulty of untangling it.

[0109] Optionally, the edge of the upper shell 111 may have a first protruding tooth 1111 that protrudes downward and rests against the outer side surface of the lower shell 112. Due to the presence of the first protruding tooth 1111, the interface between the upper shell 111 and the lower shell 112 can be curved and uneven, that is, along the circumferential direction of the side brush holder 110, the gap between the upper shell 111 and the lower shell 112 is interrupted by the first protruding tooth 1111, making the gap discontinuous, which can prevent filamentous garbage from being clamped in the gap at the interface to a certain extent. Even if filamentous garbage is clamped in the gap at the interface, it may only be a part of the filamentous garbage that is clamped in the gap. By performing the unwinding operation in a timely manner, it can be avoided that the filamentous garbage cannot be separated from the side brush 10.

[0110] Optionally, a second protruding tooth (not shown) may be provided on the edge of the lower shell 112, protruding upward and resting against the outer side of the upper shell 111. The first protruding tooth 1111 and the second protruding tooth may be provided simultaneously or selectively, and those skilled in the art may make a reasonable choice as needed.

[0111] In addition, when the plurality of brush strips include a fixed brush strip 121, one or more of the first protruding teeth 1111 can be used to limit the fixed brush strip 121. Specifically, the one or more first protruding teeth 1111 can be attached to the outer side of the fixed brush strip 121.

[0112] exist Figures 3A to 3B In the embodiment shown, the flange 120g is located on the connecting arm 120c. FIG. 10A to FIG. 10B In the illustrated embodiment, the flange 120g is located on the middle arm 120d. Typically, the hardness of the middle arm 120d is less than that of the connecting arm 120c. Regardless of whether the flange 120g is located on the connecting arm 120c or the middle arm 120d, the flange 120g may be integrally molded with the component to reduce costs. As previously mentioned, the connecting arm 120c may be made of hard rubber or hard plastic, while the middle arm 120d is made of soft rubber. Both the flange 120g and the connecting arm 120c are made of hard materials. To prevent the flange 120g from rubbing against the bottom of the body 20, sufficient clearance is typically left between the flange 120g and the bottom of the body 20 to accommodate manufacturing and assembly tolerances and ensure smooth rotation of the side brush 10. It will be appreciated that the smaller the clearance between the flange 120g and the bottom of the body 20, the less likely filamentous debris will become stuck. Based on this, it is possible to consider manufacturing the flange 120g on the middle arm 120d with a certain degree of elasticity. In this way, the flange 120g also has a certain degree of elasticity. In this way, the gap between the flange 120g and the bottom of the body 20 can be appropriately reduced, thereby effectively preventing long filamentary waste from passing over the flange 120g and entering the gap between the flange 120g and the bottom of the body 20. Moreover, the middle arm 120d is farther away from the side brush holder 110 than the connecting arm 120c, which can effectively prevent long filamentary waste from being entangled.

[0113] Alternatively, when the flange 120g is disposed on the intermediate arm 120d having a certain degree of elasticity, the flange 120g itself may be made of a hard material, or both the flange 120g and the intermediate arm 120d may be made of an elastic material. When the flange 120g is made of a hard material and the intermediate arm 120d is made of an elastic material, compared to a case where both the flange 120g and the connecting arm 120c to which it is connected are made of a hard material, the elasticity of the intermediate arm 120d allows the flange 120g to scrape against the bottom of the body 20, but the elasticity of the intermediate arm 120d reduces the interaction force between the flange 120g and the bottom of the body 20, thereby reducing the degree of wear caused by the scraping. When the flange 120g and the middle arm 120d are both made of elastic materials, the elasticity of the flange 120g can be made greater. In this way, even if the flange 120g contacts and rubs against the bottom of the fuselage 20, the wear of the flange 120g and the fuselage 20 can be reduced or even no wear.

[0114] Optionally, the flange 120g may also be located on the connecting arm 120c. In this case, the flange 120g may be made of an elastic material. The flange 120g and the connecting arm 120c are made of different materials. Optionally, the connecting arm 120c may also be made of an elastic material. In this case, the flange 120g and the connecting arm 120c may be integrally formed. When the flange 120g is made of an elastic material, the upper surface 120i of the flange 120g may be close to the bottom shell of the cleaning device 1. It is understandable that the closer the upper surface 120i of the flange 120g is to the bottom shell of the cleaning device 1, the smaller the distance between the two, so that the bottom shell can cooperate with the flange 120g to effectively prevent long filamentous garbage from crossing the flange 120g. In some embodiments, when performing normal cleaning tasks, that is, when the brush bar 10 is in a separated state, the distance between the upper surface 120i of the flange 120g and the bottom shell of the cleaning device 1 is less than 1 mm. Exemplarily, the spacing may be less than 0.6 mm. Exemplarily, the spacing may be less than 0.4 mm. Alternatively, the spacing may be 0. In this case, there may be no interaction force between the upper surface 120 i of the flange 120 g and the bottom shell of the cleaning device 1 .

[0115] For example, FIG. 10A to FIG. 10BAs shown, for each brush strip 120, the flange 120g has an upper surface 120i, which includes a first sub-surface 1201i and a second sub-surface 1202i. The first sub-surface 1201i and the second sub-surface 1202i are arranged sequentially along a radially outward direction. The first sub-surface 1201i connects the side surface of the brush strip 120 and the second sub-surface 1202i. The second sub-surface 1202i extends horizontally or tilts or curves downward radially outward. In other words, the upper surface 120i is not completely tilted or curved upward radially outward. Along the radially outward direction, the upper surface 120i can, for example, extend horizontally, tilt or curve downward, or tilt or curve upward and then downward. In short, it is best not to tilt or curve completely upward. This ensures that even if filamentous waste passes over the flange 120g and enters the gap between the flange 120g and the bottom of the body 20, the filamentous waste can be smoothly guided out of the side brush 10 during rotation and unwinding.

[0116] In some other embodiments of the present disclosure, a side brush is provided for use in a cleaning device. The cleaning device includes a body and a suction port provided at the bottom of the body. The side brush is provided next to the suction port. When the cleaning device performs a cleaning task, the side brush rotates and sweeps garbage toward the suction port. The side brush is characterized in that it includes:

[0117] The brush strips are rotatable as a whole about a first axis, and at least one of the brush strips is a movable brush strip movable between a first position and a second position, wherein:

[0118] When the movable brush bar is in the first position, the radial distance from the free end of the movable brush bar to the first axis has a first value; when it is in the second position, the radial distance has a second value, which is greater than the first value.

[0119] In some embodiments, there are multiple brush strips, and when the movable brush strip is in the first position, the movable brush strip and at least one of the adjacent brush strips are in a separated state away from each other along the circumferential direction around the first axis; when the movable brush strip is in the second position, the movable brush strip and at least one of the adjacent brush strips are in a closed state close to each other along the circumferential direction.

[0120] The side brush provided in the embodiment of the present disclosure can at least extend the length of at least one brush bar of the side brush, so that the cleaning range of the side brush is larger.

[0121] It should be noted that other structures and functions of the side brush provided in this embodiment are the same as those in the above-mentioned embodiment. Please refer to the description of the above embodiment and this embodiment will not be described in detail.

[0122] According to another aspect of the present disclosure, a cleaning assembly is provided. The cleaning assembly may include a side brush 10 and a negative pressure device (not shown). The side brush 10 includes a side brush holder 110 and a plurality of brush strips 120. The side brush holder 110 is rotatable about a first axis P1. Each of the plurality of brush strips 120 is connected at one end to the side brush holder 110, and at least one of the plurality of brush strips 120 is a movable brush strip 122 movable between a first position and a second position. When the movable brush strip 122 is in the first position, the plurality of brush strips 120 are spaced apart from each other along a circumferential direction around the first axis. When the movable brush strip 122 is in the second position, the plurality of brush strips 120 are moved toward each other along a circumferential direction R1-R2. For example, the negative pressure device can generate airflow to remove at least some of the filamentous waste from the plurality of brush strips 120 when the movable brush strip 122 is in the second position. When detangling is desired, the movable brush strip 122 can be placed in the second position, closing the plurality of brush strips 120, thereby facilitating detangling under the action of the airflow from the negative pressure device. The side brush 10 can be any of the aforementioned side brushes and will not be described in further detail for the sake of brevity. For example, the negative pressure device can generate airflow to allow the movable brush strips 122 to reciprocate between the first and second positions, thereby removing at least some of the filamentary waste from the plurality of brush strips 120. The reciprocating movement of the movable brush strips 122 can cause the filamentary waste to change state, such as becoming loose or broken, which can facilitate detangling.

[0123] In addition, according to another aspect of the present disclosure, a cleaning device having the cleaning assembly is also provided. In this case, the negative pressure device is a first negative pressure device provided on the cleaning device.

[0124] In addition, according to another aspect of the present disclosure, a cleaning system having the cleaning component is also provided. Figure 12 As shown, the cleaning system may further include a cleaning device 1 and a cleaning base station 2 , wherein the side brush may be provided on the cleaning device, and the negative pressure device may be provided on the cleaning base station, that is, the negative pressure device is a second negative pressure device 50 .

[0125] According to another aspect of the present disclosure, a cleaning device is also provided. The cleaning device may include any of the aforementioned side brushes and a negative pressure device (i.e., a first negative pressure device). The negative pressure device is capable of generating an airflow to remove at least a portion of the filamentous waste (e.g., the aforementioned filamentous waste) from the brush strip 120 when the movable brush strip 122 is in the second position; alternatively, the negative pressure device is capable of generating an airflow to remove at least a portion of the filamentous waste from the brush strip 120 when the movable brush strip 122 is switching back and forth between the first position and the second position.

[0126] For example, refer back to Figures 1A to 1CThe cleaning device 1 may further include a dust collection container 30, which is in fluid communication with the first negative pressure device and the suction port 21. When the movable brush bar 122 is in the second position, or when the movable brush bar 122 switches back and forth between the first position and the second position, the airflow generated by the first negative pressure device can remove at least part of the filamentous waste from the brush bar 120 and allow the waste to enter the dust collection container 30 through the suction port 21.

[0127] In some embodiments, the roller brush 40 may be a roller brush 40 with a detangling function. Thus, after the tangled material (or filamentary waste) on the side brush 10 is peeled off by the roller brush 40 and moved to the roller brush 40, the filamentary waste on the roller brush 40 can be quickly peeled off because the roller brush 40 itself has a detangling function, thereby reducing the risk of waste entanglement on the side brush 10 and the roller brush 40. It is well known to those skilled in the art that for a cleaning device with a sweeping function, the side brush 10 and the roller brush 40 are the main components for entanglement of filamentary waste. The detangling function of the side brush 10 and the roller brush 40 can achieve an anti-entanglement effect for the cleaning device as a whole.

[0128] When the cleaning device 1 performs a cleaning task on the surface to be cleaned, the first axis of the side brush 10 is perpendicular or inclined to the surface to be cleaned, and the rotation axis of the roller brush 40 is parallel to the surface to be cleaned.

[0129] For the roller brush 40 with the unwinding function, for example, Figure 13 As shown, the roller brush 40 may include a roller body 41 and a cleaning portion 42 (including a bristle brush and / or a rubber brush). The cleaning portion 42 is spirally arranged on the outer peripheral wall of the roller body 41. Along the length direction of the roller body 41, the roller body 41 includes a first end 411 and a second end 412 that are oppositely arranged. The first end 411 is connected to the mounting bin 23, and the second end 412 is a free end. The mounting bin 23 is provided with a suction port 231, which is opposite to the second end 412 of the roller body 41. The suction airflow generated by the first negative pressure device causes the entangled material on the roller brush 40 to move in the direction from the first end 411 to the second end 412 of the roller body 41 and be drawn out of the mounting bin 23 through the suction port 231. When the movable brush strip 122 of the side brush 10 is in the second position, or the movable brush strip 122 of the side brush 10 is switched back and forth between the first position and the second position, the side brush 10 is in contact with the roller brush 40 for at least part of the time, and the roller brush 40 peels off the entangled materials (such as hair) on the side brush 10 and concentrates them on the roller brush 40. Since the roller brush 40 itself is a single cantilever roller brush, the hair on the roller brush 40 is guided by the spiral of the roller brush 40 to the second end 412 and sucked away through the suction port 231, so that there is basically no hair remaining on the roller brush 40, thereby greatly improving the overall anti-entanglement effect of the cleaning equipment.

[0130] Optional, such as Figure 14As shown, the roller brush 40 and / or the mounting chamber 23 are provided with a cutting structure G, which is used to cut entangled materials on the roller brush 40. When the movable brush bar 122 of the side brush 10 is in the second position, or when the movable brush bar 122 of the side brush 10 switches back and forth between the first position and the second position, the side brush 10 is in contact with the roller brush 40 for at least part of the time, and the roller brush 40 peels off the entangled materials (such as hair) on the side brush 10 and concentrates them on the roller brush 40. Since the roller brush 40 and / or the mounting chamber 23 have the cutting structure G, the hair on the roller brush 40 can be cut off by the cutting structure G without being entangled with the roller brush 40. The cut hair can be easily sucked away by the suction port of the mounting chamber 23, so that basically no hair remains on the roller brush 40, thereby greatly improving the overall anti-entanglement effect of the cleaning device. It should be noted that, in this embodiment, the position of the suction port of the mounting chamber 23 is not limited. It can be located at a position on the mounting chamber 23 opposite to the end of the roller brush 40 in the length direction, or it can be located at a position on the mounting chamber 23 opposite to the middle of the roller brush 40 in the length direction, as long as the hair cut by the cutting structure G can be extracted from the mounting chamber 23.

[0131] Exemplarily, the cleaning component may further include a dust collecting container 30 disposed in the body 20. The air suction port of the first negative pressure device is in fluid communication with the dust collecting container 30 and the mounting bin 23 where the roller brush 40 is mounted. The dust collecting container 30 may be located on the airflow path formed by the first negative pressure device through the suction port 21, so as to collect garbage in the suction airflow generated by the first negative pressure device. In this way, the first negative pressure device for stripping off entanglements on the brush 10 may also be used in the cleaning mode to suck the garbage at the suction port 21 into the dust collecting container 30. In the embodiment where the roller brush 40 is used to strip off entanglements on the brush 10, the stripped entanglements may be sucked into the dust collecting container 30 through the first negative pressure device.

[0132] According to another aspect of the present disclosure, a cleaning base station is provided, which may have a docking position for the aforementioned cleaning equipment to dock.

[0133] In addition, a cleaning system is available, see Figure 12 The cleaning system includes any one of the above-mentioned cleaning base stations 2 and any one of the above-mentioned cleaning equipment 1 , and the cleaning equipment 1 can be selectively docked with the cleaning base station 2 .

[0134] According to another aspect of the present disclosure, a cleaning base station 2 is further provided. The cleaning base station 2 may include: a docking station for docking the cleaning device 1 described above, and a second negative pressure device 50. The second negative pressure device 50 is capable of generating an airflow to remove at least a portion of the filamentous waste from the movable brush bar 122 when the movable brush bar 122 is in the second position. Alternatively, the second negative pressure device 50 is capable of generating an airflow to remove at least a portion of the filamentous waste from the movable brush bar 120 when the movable brush bar 122 is switching back and forth between the first position and the second position.

[0135] Exemplarily, the cleaning device 1 may include a dust collection container 30, and the cleaning base station 2 may include a dust storage container 60 and a dust collection channel 70. The second negative pressure device 50 is connected to the dust storage container 60 and the dust collection channel 70 in sequence. The airflow generated by the second negative pressure device 50 can enter the dust storage container 60 through the dust collection channel 70. Exemplarily, the air inlet of the second negative pressure device 50 is connected to the dust collection channel 70, and the dust storage container 60 is arranged on the airflow channel between the second negative pressure device 50 and the dust collection channel 70. The second negative pressure device 50 is in fluid communication with the dust collection container 30 of the cleaning device 1 through the dust collection channel 70. When the movable brush bar 122 is in the second position, or when the movable brush bar 122 switches back and forth between the first position and the second position, the airflow generated by the second negative pressure device 50 can peel off at least part of the filamentous garbage on the brush bar 120 and make it pass through the suction port 21, the dust collection container 30, and the dust collection channel 70 in sequence into the dust storage container 60.

[0136] Exemplarily, the cleaning system may further include a mobile terminal. A mobile terminal, also known as a mobile communication terminal, refers to a computer device that can be used on the move, broadly speaking including mobile phones, notebooks, tablet computers, POS machines, vehicle-mounted computers, etc. The cleaning device 1 and / or the cleaning base station may include a control unit. The mobile terminal is communicatively connected to the control unit. The mobile terminal is used to send a control signal so that the control unit controls the cleaning device 1 to dock with the cleaning base station and / or so that the control unit controls the start of the negative pressure device.

[0137] In the description of the present disclosure, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "horizontal", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present disclosure; the directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0138] For ease of description, area-relative terms such as "above", "above", "on the upper surface", "above", etc. may be used herein to describe the regional positional relationship of one or more components or features shown in the figures with other components or features. It should be understood that area-relative terms include not only the orientation of the components as described in the figures, but also different orientations during use or operation. For example, if the components in the drawings are inverted as a whole, the situation where the components are "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Thus, the exemplary term "above" may include both the orientations of "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document is intended to include all of these situations.

[0139] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, parts, components and / or combinations thereof.

[0140] It should be noted that the terms "first," "second," and the like in the specification and claims of the present disclosure and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present disclosure described herein can be implemented in an order other than that illustrated or described herein.

[0141] The present disclosure has been described through the above-described embodiments, but it should be understood that the above-described embodiments are for illustrative and illustrative purposes only and are not intended to limit the present disclosure to the described embodiments. In addition, it will be understood by those skilled in the art that the present disclosure is not limited to the above-described embodiments, and that various variations and modifications may be made based on the teachings of the present disclosure, all of which fall within the scope of protection claimed by the present disclosure. The scope of protection of the present disclosure is defined by the appended claims and their equivalents.

Claims

1. A side brush for use in a cleaning device, the cleaning device comprising a body and a suction port located at the bottom of the body, the side brush being located next to the suction port, wherein when the cleaning device is performing a cleaning task, the side brush rotates and sweeps garbage toward the suction port, characterized in that: The side brush comprises: a side brush holder, the side brush holder being rotatable about a first axis; A plurality of brush strips, each of the plurality of brush strips comprises a connecting arm and a bristle strip, a first end of the connecting arm is connected to the side brush holder, and the bristle strip is connected to the second end of the connecting arm, and at least one of the plurality of brush strips is a movable brush strip movable between a first position and a second position, wherein: When the movable brush bar is in the first position, the movable brush bar and at least one of the brush bars adjacent thereto are in a separated state away from each other along a circumferential direction around the first axis; and When the movable brush bar is in the second position, the movable brush bar and at least one of the adjacent brush strips are in a closed state close to each other along the circumferential direction, and along the radial outward direction perpendicular to the first axis, the distance between the bristles of the movable brush bar and the bristles of at least one of the adjacent brush strips remains unchanged or decreases.

2. The side brush according to claim 1, characterized in that The side brush seat is provided with a first limiting portion and a second limiting portion, the first limiting portion and the second limiting portion are spaced apart along the circumferential direction, the movable brush strip is freely movable between the first limiting portion and the second limiting portion, and the circumferential direction includes a first circumferential direction and a second circumferential direction that are opposite to each other, wherein: When the side brush holder rotates along the first circumferential direction, the movable brush bar abuts against the first limiting portion to be in the first position; and When the side brush holder rotates along the second circumferential direction, the movable brush bar abuts against the second limiting portion to be in the second position.

3. The side brush according to claim 1 or 2, characterized in that: During the process of the cleaning device performing a cleaning task, and when the movable brush bar is in the first position, the side brush rotates and the movable brush bar contacts the surface to be cleaned; When the cleaning device is performing a cleaning task and the movable brush bar is in the second position, the side brush rotates and the movable brush bar contacts the surface to be cleaned.

4. The side brush according to claim 1, wherein: When at least one of the movable brush strips is in the first position, the radial distance from the end of the strip to the first axis has a first value, and when it is in the second position, the radial distance has a second value, and the first value is smaller than the second value.

5. The side brush according to claim 1 or 4, characterized in that: When the movable brush bar is in the first position, the radial distance from the end of the bristle bar of each of the plurality of brush bars to the first axis has the same value.

6. The side brush according to claim 4, characterized in that When the at least one of the movable brush strips is in the first position and the second position, the length of the portion thereof exposed outside the side brush seat is different, so as to adjust the value of the radial distance.

7. The side brush according to claim 4, characterized in that The connecting arm of the at least one of the movable brush strips is rotatably connected to the side brush holder about a second axis so as to be movable between the first position and the second position; Determine a transverse plane perpendicular to the first axis and passing through the geometric center of the side brush holder. On the transverse plane, define the intersection of the first axis and the transverse plane as a first intersection, and the intersection of the second axis and the transverse plane as a second intersection. Determine a virtual ray with the second intersection as an endpoint, and the reverse extension of the virtual ray passes through the first intersection. When at least one of the movable brush strips is in the first position, a line connecting the end of the brush strip and the second intersection point forms a first angle with the virtual ray; When at least one of the movable brush strips is in the second position, a second angle is formed between a line connecting an end of the brush strip and the second intersection point and the virtual ray; The first angle is greater than the second angle.

8. The side brush according to claim 7, characterized in that The at least one of the active brush bars is located on both sides of the virtual ray in the first position and the second position respectively; and / or At least one of the plurality of brush strips is a fixed brush strip fixed relative to the side brush holder, wherein: the at least one of the movable brush strips is in the first position and is located on both sides of the virtual ray with the fixed brush strip respectively; and / or The at least one of the movable brush bars is located at the same side of the virtual ray as the fixed brush bar in the second position.

9. The side brush according to claim 1, wherein: The connecting arm of at least one of the movable brush bars is rotatably connected to the side brush holder about a second axis, and the second axis is movable in a direction approaching and away from other brush bars among the plurality of brush bars, so that: when the at least one of the movable brush bars is in the first position, the second axis thereof has a first distance from the connecting arms of the other brush bars, and when the at least one of the movable brush bars is in the second position, the second axis thereof has a second distance from the connecting arms of the other brush bars, and the first distance is greater than the second distance.

10. The side brush according to claim 9, characterized in that A position adjustment structure is provided between the side brush holder and the connecting arm of at least one of the movable brush strips, and the connecting arm of at least one of the movable brush strips is movably connected to the side brush holder through the position adjustment structure. The position adjustment structure is used to adjust the relative position of at least one of the movable brush strips and the side brush holder, and to move the second axis along the direction of approaching and moving away from the other brush strips among the multiple brush strips.

11. The side brush according to claim 10, wherein: The position adjustment structure includes a slide groove provided on the side brush seat, and a rotating shaft provided on the connecting arm of at least one of the movable brush strips and with the second axis as the axis, wherein the rotating shaft is rotatably and slidably connected to the slide groove, wherein: when the at least one of the movable brush strips is in the first position, the rotating shaft is located at the first end of the slide groove; and when the at least one of the movable brush strips is in the second position, the rotating shaft is located at the second end of the slide groove; or The position adjustment structure includes a rotating shaft provided on the side brush seat and with the second axis as the axis, and a slide groove provided on the connecting arm of at least one of the movable brush strips, wherein: when the at least one of the movable brush strips is in the first position, the rotating shaft slides to the first end of the slide groove; and when the at least one of the movable brush strips is in the second position, the rotating shaft slides to the second end of the slide groove.

12. The side brush according to claim 11, wherein: The distance from the first end of the slide groove to the first axis is smaller than the distance from the second end of the slide groove to the first axis.

13. The side brush according to any one of claims 7 to 12, characterized in that: Along the radially outward direction, the angle between the bristles of the brush strip and the first axial direction is an acute angle, wherein the first axial direction is a direction parallel to the first axis and pointing to the surface to be cleaned; The second axis has an included angle with the first axis, so that when the movable brush bar is in the first position, the included angle between the bristles thereof and the first axial direction is greater than the included angle between the movable brush bar and the first axial direction when the movable brush bar is in the second position.

14. The side brush according to claim 1, wherein The side brush holder includes a shell, the shell is formed with a mounting cavity for mounting a connecting arm, the shell includes a lower surface facing the upper surface of the connecting arm, a first gap is formed between the upper surface of the connecting arm and the lower surface of the shell, and a flange protruding toward the end of the bristle strip is provided on the side surface of at least one of the multiple brush strips, the flange is used to prevent long filamentous garbage from entering the first gap, For at least one of the plurality of brush strips: A groove is formed between the flange and the upper surface of the brush strip, the groove is located at the lower side of the flange, and the first gap is located at the upper side of the flange.

15. The side brush according to claim 1, wherein The side brush holder includes an upper shell and a lower shell that are buckled together, and the first end of the connecting arm is connected to the installation cavity enclosed by the upper shell and the lower shell, wherein: The edge of the upper shell has a first protruding tooth that protrudes downward and abuts against the outer side of the lower shell; and / or The edge of the lower shell has a second protruding tooth that protrudes upward and abuts against the outer side surface of the upper shell.

16. The side brush according to claim 14, wherein: The flange is made of elastic material; and / or The flange is located on the connecting arm; and / or Each of the plurality of brush strips further comprises an intermediate arm connected between the connecting arm and the bristle strip, the flange is provided on the intermediate arm, the hardness of the intermediate arm is less than the hardness of the connecting arm, and the intermediate arm is made of elastic material; and / or For each of the multiple brush strips: the flange has an upper surface, the upper surface includes a first sub-surface and a second sub-surface, the first sub-surface and the second sub-surface are arranged in sequence along the radial outward direction, the first sub-surface is connected between the side of the brush strip and the second sub-surface, wherein the second sub-surface extends in a horizontal direction or is inclined or bent downward along the radial outward direction.

17. The side brush according to claim 14, wherein: The flange is made of elastic material, and the upper surface of the flange is close to the bottom shell of the cleaning device.

18. The side brush according to claim 1, wherein The connecting arm of the movable brush bar is rotatably connected to the side brush holder about a second axis so as to be movable between the first position and the second position, wherein: in a transverse plane perpendicular to the first axis and passing through the geometric center of the side brush holder, the second axis intersects with the first axis or is spaced apart from the first axis; and / or The side brush further includes a fixed brush bar, and the number of the movable brush bar and the number of the fixed brush bar are both one; and / or The plurality of brush strips have the same structure; and / or When the movable brush bar is in the first position, the angle between the bristles of the movable brush bar and the bristles of at least one of the adjacent brush bars is [120°, 165°]; and / or When the movable brush bar is in the second position, the angle between the bristles of the movable brush bar and the bristles of at least one of the adjacent brush bars is [0°, 20°]; and / or The side brush further comprises a driving source, the driving source being used to drive the movable brush bar to move between the first position and the second position; and / or The multiple brush strips also include a fixed brush strip, the side brush holder includes an upper shell and a lower shell that are interlocked, the first end of the connecting arm is connected to the installation cavity enclosed by the upper shell and the lower shell, and the edge of the upper shell has a first protruding tooth that protrudes downward and abuts against the outer side of the fixed brush strip.

19. The side brush according to claim 1 or 2, characterized in that: The side brush includes at least two adjacent movable brush strips.

20. The side brush according to claim 19, wherein At least two adjacent movable brush strips can rotate at different angles relative to the side brush seat in the circumferential direction.

21. The side brush according to claim 19, wherein During the process of closing the at least two adjacent movable brush strips, the at least two adjacent movable brush strips move in the same circumferential direction relative to the side brush seat.

22. The side brush according to claim 21, wherein During the process of closing the at least two adjacent movable brush strips, along the direction of the circumferential movement of the movable brush strip relative to the side brush holder, the angle through which the more rearward movable brush strip of the at least two adjacent movable brush strips rotates relative to the circumferential movement of the side brush holder is a first angle, and the angle through which the more forward movable brush strip of the at least two adjacent movable brush strips rotates relative to the circumferential movement of the side brush holder is a second angle, wherein the first angle is greater than the second angle.

23. The side brush according to claim 1, wherein When the movable brush bar is in the first position, the reverse extension line of the extension direction of the bristle bar of each of the plurality of brush bars does not pass through the first axis.

24. The side brush according to claim 23, wherein When the movable brush bar is in the first position, the bristle of each of the multiple brush bars extends along the tangent direction of the edge of the side brush holder as projected on a transverse plane perpendicular to the first axis and passing through the geometric center of the side brush holder.

25. A side brush for use in a cleaning device, the cleaning device comprising a body and a suction port located at the bottom of the body, the side brush being located next to the suction port, wherein the side brush rotates and sweeps garbage toward the suction port during cleaning. The side brush comprises: Brush bars, each of which is rotatable as a whole about a first axis, and at least one of the brush bars is a movable brush bar movable between a first position and a second position, wherein: When the movable brush bar is in the first position, the radial distance from the free end of the movable brush bar to the first axis has a first value; when it is in the second position, the radial distance has a second value, which is greater than the first value.

26. The side brush according to claim 25, characterized in that There are multiple brush strips. When the movable brush strip is in the first position, the movable brush strip and at least one of the adjacent brush strips are in a separated state away from each other along the circumferential direction around the first axis. When the movable brush strip is in the second position, the movable brush strip and at least one of the adjacent brush strips are in a closed state close to each other along the circumferential direction.

27. A cleaning component, used in a cleaning device, the cleaning device comprising a body and a suction port provided at the bottom of the body, characterized in that: The cleaning component includes: The side brush is provided beside the suction port, and the cleaning device rotates to sweep garbage toward the suction port during the cleaning task, and the side brush comprises a side brush holder and a plurality of brush bars, wherein the side brush holder is rotatable around a first axis, one end of each of the plurality of brush bars is connected to the side brush holder, and at least one of the plurality of brush bars is a movable brush bar movable between a first position and a second position, wherein: when the movable brush bar is in the first position, the movable brush bar and at least one of the brush bars adjacent thereto are in a separated state away from each other along a circumferential direction around the first axis; and when the movable brush bar is in the second position, the movable brush bar and at least one of the brush bars adjacent thereto are in a closed state close to each other along the circumferential direction; and A negative pressure device, which is capable of generating an airflow to peel off at least part of the filamentous garbage on the multiple brush strips when the movable brush strip is in the second position, or the negative pressure device is capable of generating an airflow to peel off at least part of the filamentous garbage on the multiple brush strips when the movable brush strip is switching back and forth between the first position and the second position.

28. A cleaning device, characterized in that: include: The side brush according to any one of claims 1 to 26; as well as A first negative pressure device, wherein the first negative pressure device is capable of generating an airflow to peel off at least part of the filamentous garbage on the brush bar when the movable brush bar is in the second position; or, the first negative pressure device is capable of generating an airflow to peel off at least part of the filamentous garbage on the brush bar when the movable brush bar is switching back and forth between the first position and the second position.

29. The cleaning device according to claim 28, characterized in that The cleaning device also includes a dust collection container, which is fluidically connected to the first negative pressure device and the suction port. When the movable brush bar is in the second position, or when the movable brush bar switches back and forth between the first position and the second position, the airflow generated by the first negative pressure device can peel off at least part of the filamentous garbage on the brush bar and enter the dust collection container through the suction port.

30. The cleaning device according to claim 28, characterized in that The bottom of the fuselage is provided with an installation chamber, the suction port is communicated with the installation chamber, a roller brush is provided in the installation chamber, the side brush is in contact with the roller brush for at least part of the time, and the roller brush and / or the side brush rotate to peel off at least part of the entanglement on the side brush; and / or, during the cleaning process of the cleaning device performing a cleaning task on the surface to be cleaned, the first axis of the side brush is perpendicular or inclined to the surface to be cleaned, and the rotation axis of the roller brush is parallel to the surface to be cleaned; And / or, the roller brush includes a roller body and a cleaning portion, the cleaning portion is spirally arranged on the outer peripheral wall of the roller body, and along the length direction of the roller body, the roller body includes a first end and a second end that are oppositely arranged, the first end is connected to the mounting bin, and the second end is a free end, the mounting bin is provided with a suction port, and the suction port is arranged opposite to the second end of the roller body, and the suction airflow generated by the first negative pressure device causes the entangled material on the roller brush to move along the direction from the first end to the second end of the roller body and be drawn out of the mounting bin through the suction port; And / or, the roller brush and / or the mounting bin is provided with a cutting structure, and the cutting structure is used to cut the entanglement on the roller brush.

31. A cleaning device, characterized in that It comprises a body and a cleaning component as claimed in claim 27.

32. A cleaning base station, characterized in that: The cleaning base station has a docking position for docking the cleaning device according to any one of claims 28 to 31.

33. A cleaning base station, characterized in that: The cleaning base station comprises: A docking position for docking a cleaning device according to any one of claims 28 to 31; and A second negative pressure device, the second negative pressure device can generate an airflow to peel off at least part of the filamentous garbage on the brush bar when the movable brush bar is in the second position, or the second negative pressure device can generate an airflow to peel off at least part of the filamentous garbage on the brush bar during the process of reciprocating switching of the movable brush bar between the first position and the second position.

34. The cleaning base station according to claim 33, characterized in that The cleaning device includes a dust collection container, the cleaning base station includes a dust storage container and a dust collection channel, the second negative pressure device is sequentially connected to the dust storage container and the dust collection channel, and the second negative pressure device is in fluid communication with the dust collection container of the cleaning device through the dust collection channel. When the movable brush bar is in the second position, or when the movable brush bar switches back and forth between the first position and the second position, the airflow generated by the second negative pressure device can peel off at least part of the filamentous garbage on the brush bar and make it pass through the suction port, the dust collection container, and the dust collection channel in sequence and enter the dust storage container.

35. A cleaning system, characterized in that It comprises the cleaning base station according to any one of claims 32 to 34 and the cleaning device according to any one of claims 28 to 31, wherein the cleaning device can be selectively docked with the cleaning base station.

36. A cleaning system, characterized in that include: Clean base stations; a cleaning device, the cleaning device being selectively docked with the cleaning base station; as well as The cleaning component as described in claim 27, wherein the side brush of the cleaning component is arranged on the cleaning device, and the negative pressure device of the cleaning component is arranged on the cleaning base station.

37. The cleaning system of claim 36, wherein: The cleaning system further comprises a mobile terminal, the cleaning device and / or the cleaning base station comprises a control unit, and the mobile terminal is communicatively connected to the control unit; The mobile terminal is used to send a control signal so that the control unit controls the cleaning device to dock with the cleaning base station, and / or controls the negative pressure device to start.

Images