Rolling brush and cleaning device

Abstract

The utility model discloses a rolling brush and a cleaning device, and the rolling brush comprises a cylinder main body, a first sweeping part and a second sweeping part; the first cleaning piece is connected to the barrel main body and protrudes out of the peripheral surface of the barrel main body; the second cleaning piece is movably connected to the barrel main body between a first position and a second position, and the second cleaning piece is provided with a tail end far away from the axis of the barrel main body; when the second sweeping piece is located at the first position, the distance between the tail end and the axis of the barrel body is a first distance, when the second sweeping piece is located at the second position, the distance between the tail end and the axis of the barrel body is a second distance, and the distance between the end, away from the axis of the barrel body, of the first sweeping piece and the axis of the barrel body is a third distance. The first distance, the third distance and the second distance decrease in sequence. According to the embodiment of the invention, the rolling brush can be used for different scenes through the switching of the first cleaning part and the second cleaning part, and the adaptability and cleaning efficiency of the sweeping robot are improved.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a roller brush and a cleaning device. Background Art

[0002] Cleaning equipment such as sweeping robots are usually provided with a rotatable roller brush, which is driven by a motor to rotate so that dust and other dirt in the area where the roller brush passes are transported in a directional manner, thereby cleaning the floor. Since the existing roller brush has a relatively simple structure, the cleaning efficiency of the sweeping robot is affected. Utility Model Content

[0003] The present application provides a roller brush and a cleaning device, aiming to improve the problem of a single roller brush structure.

[0004] In order to achieve the above technical effects, a technical solution adopted by the present application is: to provide a roller brush, comprising:

[0005] The barrel body;

[0006] A first cleaning member connected to the barrel body, the first cleaning member protruding from the outer peripheral surface of the barrel body; and

[0007] A second cleaning member is movably connected to the barrel body between a first position and a second position, and the second cleaning member has a terminal end away from the axis of the barrel body;

[0008] Among them, when the second cleaning piece is in the first position, the distance between the end and the axis of the tube body is the first distance, when the second cleaning piece is in the second position, the distance between the end and the axis of the tube body is the second distance, and the distance between the end of the first cleaning piece away from the axis of the tube body and the axis of the tube body is the third distance, and the first distance, the third distance and the second distance decrease successively.

[0009] The present application also proposes an example of a cleaning device, comprising:

[0010] main body;

[0011] A dust collecting box connected to the main body; and

[0012] Like the roller brush in any of the above examples, the roller brush is connected to the main body.

[0013] The example of the present application arranges a first cleaning piece and a second cleaning piece on the cylinder body, and utilizes the second cleaning piece that can move between a first position and a second position. When the second cleaning piece is in the first position, the roller brush can utilize the second cleaning piece to perform a cleaning operation, and when the second cleaning piece is in the second position, the roller brush can utilize the first cleaning piece to perform a cleaning operation. Then, by switching the first cleaning piece and the second cleaning piece, the roller brush can be used in different scenarios, thereby improving the adaptability and cleaning efficiency of the sweeping robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a structural schematic diagram of an example of a cleaning device of the present application;

[0016] Figure 2 is a structural schematic diagram of another example of the cleaning device of the present application;

[0017] Figure 3 This is a schematic diagram of the structure of an example of the inlet side of the shell of the present application;

[0018] Figure 4 It is a structural schematic diagram of an example of the internal structure of the cleaning device of the present application;

[0019] Figure 5 It is a structural schematic diagram of an example of the barrel body of the present application;

[0020] Figure 6 It is a structural schematic diagram of an example when the second cleaning member of the present application is in the first position;

[0021] Figure 7 This is a structural schematic diagram of an example of the position relationship between the second cleaning member of the present application and the barrel body when the second cleaning member is in the first position;

[0022] Figure 8 It is a structural schematic diagram of an example when the second cleaning member of the present application is in the second position;

[0023] Fig. 9 This is a structural schematic diagram of an example of the positional relationship between the second cleaning member of the present application and the barrel body when the second cleaning member is in the second position;

[0024] Fig.10 It is a structural schematic diagram of an example of the internal structure of the cylinder body when the second cleaning member of the present application is in the first position;

[0025] Fig.11 It is a structural schematic diagram of an example of a crankshaft when the second cleaning member of the present application is in the first position;

[0026] Fig.12 It is a structural schematic diagram of an example of the second cleaning member and the driving assembly when the second cleaning member of the present application is in the first position;

[0027] Fig.13 yes Fig.12 A partial enlarged view of the middle 12A area;

[0028] Fig.14 It is a structural schematic diagram of an example of the internal structure of the cylinder body when the second cleaning member of the present application is in the second position;

[0029] Fig.15 It is a structural schematic diagram of an example of a crankshaft when the second cleaning member of the present application is in the second position;

[0030] Fig.16 It is a structural schematic diagram of an example of the first positioning member of the present application;

[0031] Fig.17 It is a structural schematic diagram of an example of the end cover and the second positioning member of the present application;

[0032] Fig.18 It is a schematic diagram of a control module of an example of a controller of the present application;

[0033] Fig.19 It is a structural schematic diagram of an example of a second cleaning member and a connecting rod of the present application;

[0034] Fig. 20 It is a structural schematic diagram of an example of a connecting rod of the present application;

[0035] Fig.21 This is a structural schematic diagram of an example of the assembly state of the second cleaning member and the second bracket of the present application;

[0036] Fig. 22 It is a structural schematic diagram of another example of the assembly state of the second cleaning member and the second bracket of the present application.

[0037] in:

[0038] 100, main body; 110, dust suction port; 120, shell; 121, inlet; 122, flow channel; 123, side wall; 130, barrel body; 131, barrel shell; 132, first avoidance groove; 133, accommodating chamber; 140, sleeve; 141, second avoidance groove; 142, retaining ring; 150, second bracket; 151, guide groove; 160, end cover; 161, second positioning member; 1611, spring piece; 1612, first elastic protrusion; 1613, second elastic protrusion; 162, boss; 163, positioning block; 170, first positioning member; 171, positioning plate; 172, first convex portion; 1721, first positioning surface; 1722, first guiding inclined surface; 173, second convex portion; 1731, second positioning surface; 1732, second guiding inclined surface inclined surface; 174, mounting surface; 180, bearing; 200, first cleaning member; 210, first rib; 220, second rib; 300, second cleaning member; 310, first bracket; 311, first joint; 320, brush; 321, second joint; 330, protrusion; 400, drive assembly; 410, crankshaft; 420, connecting rod; 421, first end; 422, second end; 423, positioning groove; 424, first part; 4241, first groove; 425, second part; 4251, second groove; 426, rotating shaft; 500, driving device; 600, timer; 700, controller; 800, detection device; 900, dust collecting box; 7a, first distance; 9a, second distance; 5a, third distance. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" in the description of this application should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this article can be understood according to specific circumstances.

[0041] In this application, the word "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0042] Cleaning robots include sweeping robots for cleaning the ground and devices for cleaning other areas to be cleaned. Taking sweeping robots as an example, cleaning devices such as sweeping robots usually include a main unit and a roller brush provided on the main unit. When the sweeping robot moves along the ground, the roller brush can move the dirt on the ground in a preset direction, thereby cleaning and collecting the dirt.

[0043] In some cases, sweeping robots are usually equipped with rubber brushes or bristle brushes. Among them, rubber brushes and bristle brushes have different effects on fluffy surfaces such as carpets and smooth surfaces. During use, bristle brushes are easily entangled with hair, thread ends, etc., which affects the cleaning efficiency of the sweeping robot and limits the scope of application of the sweeping robot.

[0044] The present application proposes an example of a roller brush, wherein the roller brush includes a barrel body, a first cleaning piece and a second cleaning piece, wherein the second cleaning piece can be movable between different positions, and the second cleaning piece can be opened and stored, when the second cleaning piece is opened, the second cleaning piece can be used for cleaning, and when the second cleaning piece is stored, the first cleaning piece can be used for cleaning, thereby being applicable to different scenarios, increasing the usage scenarios of the roller brush, and improving the cleaning efficiency of the sweeping robot.

[0045] See also Figure 1 , Figure 2 and Figure 3 The roller brush in the present application can be used in a cleaning device, wherein the cleaning device can be a sweeping robot for cleaning the floor as described in the above example, or can be a device for cleaning other surfaces.

[0046] Please refer to Figures 4 to 9 In some examples, the roller brush includes a barrel body 130, a first cleaning piece 200 and a second cleaning piece 300; the first cleaning piece 200 is connected to the barrel body 130, and the first cleaning piece 200 is arranged to protrude from the outer circumferential surface of the barrel body 130; the second cleaning piece 300 is movably connected to the barrel body 130 between a first position and a second position, and the second cleaning piece 300 has an end away from the axis of the barrel body 130; wherein, when the second cleaning piece 300 is in the first position, the distance between the end and the axis of the barrel body 130 is a first distance 7a, and when the second cleaning piece 300 is in the second position, the distance between the end and the axis of the barrel body 130 is a second distance 9a, and the distance between one end of the first cleaning piece 200 away from the axis of the barrel body 130 and the axis of the barrel body 130 is a third distance 5a, and the first distance 7a, the third distance 5a and the second distance 9a decrease successively.

[0047] Please refer to Figure 5 The barrel body 130 can be used as the main body 100 structure of the roller brush. The barrel body 130 can be a hollow structure. A receiving cavity 133 can be formed inside the barrel body 130. By forming the receiving cavity 133, it is convenient to integrate other functional components on the roller brush on the one hand, and it is convenient to reduce the weight of the roller brush on the other hand. The outer surface of the barrel body 130 can be generally cylindrical, and the barrel body 130 can rotate around its axis.

[0048] The first cleaning member 200 is connected to the barrel body 130, which means that the first cleaning member 200 and the barrel body 130 can be separately arranged, and the first cleaning member 200 and the barrel body 130 can be detachably connected or fixedly connected, and the first cleaning member 200 can also be integrally arranged with the barrel body 130. The first cleaning member 200 in this example is arranged to protrude from the outer peripheral surface of the barrel body 130, which means that the distance between the end of the first cleaning member 200 away from the axis of the barrel body 130 and the axis of the barrel body 130 is greater than the outer diameter of the barrel body 130. When the barrel body 130 rotates, the part of the first cleaning member 200 away from the axis of the barrel body 130 can be located in the space between the outer surface of the barrel body 130 and the ground, and the end of the first cleaning member 200 away from the axis of the barrel body 130 can be used to clean dirt on the ground. The distance between the end of the first cleaning member 200 away from the axis of the barrel body 130 and the axis of the barrel body 130 refers to the plane defined perpendicular to the axial direction of the barrel body 130 as the first plane, the barrel body 130 and the first cleaning member 200 are projected in the first plane, and the distance between the end of the first cleaning member 200 away from the axis of the barrel body 130 and the axis of the barrel body 130 is the third distance 5a. The first cleaning member 200 in this example has a length direction, and the length direction of the first cleaning member 200 can be parallel to the axis direction of the barrel body 130. The first cleaning member 200 can also be arranged in a spiral along the outer surface of the barrel body 130 or according to other rules. The number of the first cleaning member 200 in this example can be one, and the number of the first cleaning member 200 can also be multiple, and multiple first cleaning members 200 can be arranged generally along the circumference of the barrel body 130 to improve the cleaning efficiency of the roller brush.

[0049] The second cleaning member 300 is connected to the barrel body 130, which means that the second cleaning member 300 can be directly or indirectly connected to the barrel body 130. The second cleaning member 300 is movably connected to the barrel body 130 between the first position and the second position, which means that the second cleaning member 300 can move between the first position and the second position relative to the barrel body 130. Since the first cleaning member 200 is connected to the barrel body 130, when the second cleaning member 300 moves between the second position and the first position, the relative position between the second cleaning member 300 and the first cleaning member 200 will also change. The second cleaning member 300 has a terminal end away from the axis of the barrel body 130, which means that when the second cleaning member 300 and the barrel body 130 are projected in the first plane described above, the second cleaning member 300 is an end away from the axis of the barrel body 130. In this example, when the second cleaning member 300 moves relatively, the position of the end of the second cleaning member 300 relative to the axis of the barrel body 130 also changes synchronously. When the second cleaning member 300 is in the first position, the distance between the end of the second cleaning member 300 and the axis of the barrel body 130 is the first distance 7a. When the second cleaning member 300 is in the second position, the distance between the end of the second cleaning member 300 and the axis of the barrel body 130 is the second distance 9a. The first distance 7a is greater than the third distance 5a, and the second distance 9a is less than the third distance 5a. Therefore, when the second cleaning member 300 moves from the first position to the second position, the distance that the end of the second cleaning member 300 protrudes from the outer peripheral surface of the barrel body 130 decreases. In this example, the second cleaning member 300 can be driven to move between the first position and the second position by a motor assembly or other means. In this example, the second cleaning member 300 may be disposed adjacent to the first cleaning member 200 . Optionally, the second cleaning member 300 may also be disposed at an interval from the first cleaning member 200 in the circumferential direction of the barrel body 130 .

[0050] In some examples, when the second cleaning member 300 moves to the second position, the second cleaning member 300 may be partially or completely received in the drum body 130 .

[0051] In some examples, when the first cleaning piece 200 and the barrel body 130 are projected in the above-mentioned first plane, an outer ring is drawn with the distance between the end of the first cleaning piece 200 away from the axis of the barrel body 130 and the axis of the barrel body 130 as the radius and the axis of the barrel body 130 as the center. The area between the outer ring and the outer peripheral surface of the barrel body 130 can be used as a accommodating area. When the second cleaning piece 300 is in the first position, the end of the second cleaning piece 300 extends out of the outside of the outer ring. When the second cleaning piece 300 is in the second position, the second cleaning piece 300 can be stored in the accommodating area.

[0052] In some examples, when the second cleaning member 300 moves from the first position to the second position, the moving trajectory of the end of the second cleaning member 300 can be a straight line, and the second cleaning member 300 can move as a whole along a preset direction toward the axis of the barrel body 130; the moving trajectory of the end of the second cleaning member 300 can be along a direction perpendicular to the axis of the barrel body 130.

[0053] In some examples, the moving trajectory of the end of the second cleaning member 300 can also be a curve, and the second cleaning member 300 can rotate relative to the tube body 130 so that when the second cleaning member 300 moves from the first position to the second position, the distance between the end of the second cleaning member 300 and the axis of the tube body 130 is reduced.

[0054] In some examples, the moving trajectory of the end of the second cleaning member 300 can also be a combination of a straight line and a curve, and the second cleaning member 300 can translate and rotate relative to the barrel body 130, so that when the second cleaning member 300 moves from the first position to the second position, the distance between the end of the second cleaning member 300 and the axis of the barrel body 130 is reduced.

[0055] In this example, since the second cleaning member 300 can move between the first position and the second position, the distance by which the end of the second cleaning member 300 protrudes from the outer circumferential surface of the barrel body 130 changes, and the second cleaning member 300 can be moved to the first position when necessary to clean the area to be cleaned by the second cleaning member 300; when changing the usage scenario, the second cleaning member 300 can be moved to the second position to clean the area to be cleaned by the first cleaning member 200.

[0056] In this example, the first cleaning member 200 may be a rubber brush, and the second cleaning member 300 may be a hair brush. The first cleaning member 200 and the second cleaning member 300 may be used to clean different areas to be cleaned. For example, when the areas to be cleaned are smooth floors and carpets, the second cleaning member 300 may be moved to the first position to clean the floor; when cleaning the carpet, the second cleaning member 300 may be moved to the second position to clean the carpet by the first cleaning member 200, so as to reduce the problem of the fluff on the carpet being entangled on the hair brush. It is understandable that in this example, the second cleaning member 300 may also be switched within a predetermined time. The second cleaning member 300 may be moved from the second position to the first position within a first predetermined time, and the area to be cleaned may be cleaned by the first cleaning member 200. In the second predetermined time, the second cleaning member 300 may be moved from the second position to the first position to clean the area to be cleaned by the second cleaning member 300.

[0057] In some examples, the first cleaning member 200 may be at least one of a rubber brush and a bristle brush, and the second cleaning member 300 may be a blade. When the second cleaning member 300 is in the first position, the second cleaning member 300 may be used to cut off hair wrapped around the first cleaning member 200 to reduce hair wrapped around the first cleaning member 200. When cleaning the area to be cleaned, the second cleaning member 300 may be moved to the second position to reduce damage to the area to be cleaned.

[0058] In this example, since a movable second cleaning member 300 is used in conjunction with the first cleaning member 200, the position of the second cleaning member 300 can be switched when needed, and can be used for different areas to be cleaned, so that the roller brush can be used for cleaning in different environments. On the one hand, it can help to increase the use scenarios of the roller brush. On the other hand, since the second cleaning member 300 can be stored in the second position when needed, the problem of hair entanglement on the roller brush when the second cleaning member 300 is a brush can be reduced. On the other hand, when the second cleaning member 300 is a blade or other tool that can be used for cutting, the second cleaning member 300 can be used to clean the outside of the barrel body 130, reducing the problem of hair entanglement around the first cleaning member 200 and the outside of the barrel body 130.

[0059] Please continue reading Figure 5 In some examples, a first avoidance groove 132 is opened on the barrel body 130 , and when the second cleaning member 300 is in the second position, the second cleaning member 300 is at least partially embedded in the first avoidance groove 132 .

[0060] The first avoidance groove 132 may be a sink groove or a through groove provided on the barrel body 130. The position of the first avoidance groove 132 corresponds to the position of the second cleaning member 300. The first avoidance groove 132 may be used to form a space for accommodating the second cleaning member 300. When the second cleaning member 300 in this example is in the first position, the second cleaning member 300 may be partially located in the first avoidance groove 132, or the second cleaning member 300 may be completely accommodated in the first avoidance groove 132 to reduce the interference of the second cleaning member 300 with the first cleaning member 200. In some examples, the number of the second cleaning members 300 may be multiple, and each second cleaning member 300 may correspond to a first avoidance groove 132, or each first avoidance groove 132 may correspond to multiple second cleaning members 300.

[0061] Please continue reading Figure 5In some examples, the cylinder body 130 is provided with a accommodating cavity 133, and the first avoidance groove 132 is connected to the accommodating cavity 133; the roller brush also includes a driving assembly 400, and the driving assembly 400 is at least partially disposed in the accommodating cavity 133; the second cleaning member 300 is movably disposed in the first avoidance groove 132 and is connected to the driving assembly 400, and the driving assembly 400 is used to drive the second cleaning member 300 to move between the first position and the second position.

[0062] The barrel body 130 is at least partially hollow, so that a receiving cavity 133 is formed inside the barrel body 130. The barrel body 130 in this example may be a hollow cylindrical structure, and the receiving cavity 133 is a cylindrical hollow area inside the barrel body 130.

[0063] The driving assembly 400 is connected to the second cleaning member 300 for driving the second cleaning member 300 to move between the first position and the second position. The driving assembly 400 in this example can be a motor assembly, or a cylinder assembly or other device that can be used to drive the second cleaning member 300 to move between the first position and the second position along a preset trajectory. The first avoidance groove 132 in this example communicates with the accommodating cavity, so that the first avoidance groove 132 can be used to accommodate the second cleaning member 300 on the one hand, and on the other hand, it can form an installation space for the connecting member of the second cleaning member 300 and the driving assembly 400, so as to integrate the connecting member of the second cleaning member 300 and the driving assembly 400 on the barrel body 130. In some examples, the first avoidance groove 132 can be a long strip groove extending in the axial direction of the barrel body 130, and the number of the connecting members of the driving assembly 400 and the second cleaning member 300 can be multiple, so as to drive the second cleaning member 300 to move synchronously at different positions along the axial direction of the barrel body 130. In this example, the first avoidance groove 132 is set through the barrel body 130, and the first avoidance groove 132 can form a structure to guide the second cleaning member 300, so that when the driving component 400 drives the second cleaning member 300 to move, the second cleaning member 300 can move along the track formed by the first avoidance groove 132.

[0064] The barrel body 130 in this example forms a receiving cavity 133 for receiving the driving assembly 400, so that the driving assembly 400 can be at least partially integrated in the receiving cavity 133. On the one hand, the internal space of the barrel body 130 can be fully utilized to reduce the interference of the driving assembly 400 on the outside of the roller brush. On the other hand, it can help to reduce the volume of the roller brush and reduce the weight of the roller brush.

[0065] In some examples, drive assembly 400 includes at least one of a slider-crank mechanism, a crank-rocker mechanism, a parallelogram mechanism, and a multi-axis robot.

[0066] The crank slider mechanism is a planar connecting rod 420 mechanism that uses a crank and a slider to realize the mutual conversion between rotation and movement, also known as a crank connecting rod 420 mechanism.

[0067] A crank-rocker mechanism is a hinged four-bar mechanism with a crank and a rocker.

[0068] The parallelogram mechanism is a planar connecting rod 420 mechanism in the shape of a parallelogram, which is a hinged four-bar mechanism.

[0069] The driving component 400 in this example can be formed by one of a crank slider mechanism, a crank rocker mechanism, a parallelogram mechanism and a multi-axis robotic arm, and the driving component 400 can also be a combination of at least two of the crank slider mechanism, the crank rocker mechanism, a parallelogram mechanism and a multi-axis robotic arm.

[0070] Please refer to Figure 4 , Figure 6 , Figure 8 as well as Fig. 9 In some examples, the driving assembly 400 includes a crankshaft 410 and a connecting rod 420, the crankshaft 410 is rotatably connected to the barrel body 130; the connecting rod 420 has a first end 421 and a second end 422, the first end 421 is rotatably connected to the crankshaft 410, and the second end 422 is rotatably connected to the second cleaning member 300 through a rotating shaft 426, and the rotating shaft 426 is eccentrically arranged with respect to the rotation center of the crankshaft 410.

[0071] In this example, the crankshaft 410 is rotatably connected to the barrel body 130, which means that the crankshaft 410 can rotate along a preset direction relative to the barrel body 130. In this example, the crankshaft 410 can be connected to the barrel body 130 through a bearing 180.

[0072] Please refer to Figures 10 to 15The connecting rod 420 is connected to the crankshaft 410. When the crankshaft 410 rotates, the connecting rod 420 moves synchronously with the crankshaft 410. The connecting rod 420 has a first end 421 and a second end 422. In this example, the first end 421 and the second end 422 can be two ends of the connecting rod 420, and the first end 421 and the second end 422 can also be parts of the connecting rod 420 close to the two ends of the connecting rod 420; wherein the first end 421 is used to be connected to the crankshaft 410, and the second end 422 is used to be connected to the second cleaning member 300. The second end 422 is rotatably connected to the second cleaning member 300 through the rotating shaft 426. The axis of the second end 422 is eccentrically arranged with respect to the rotation center of the crankshaft 410, so that when the crankshaft 410 rotates, the rotating shaft 426 can rotate eccentrically relative to the rotation center of the crankshaft 410, thereby enabling the second cleaning member 300 to move between the first position and the second position. In this example, the combination of the crankshaft 410 and the connecting rod 420 can help simplify the structure of the drive assembly 400, reduce the installation space required for the drive assembly 400 in the barrel body 130, reduce the structural complexity of the drive assembly 400, and improve the controllability of the drive method.

[0073] Please refer to Fig.12 and Fig.13 In some examples, a first positioning member 170 is provided on the crankshaft 410, and a second positioning member 161 is provided on the barrel body 130; the second positioning member 161 is used to be connected to the first positioning member 170 when the crankshaft 410 rotates forward and the second cleaning member 300 is in the first position or the second position, and the second positioning member 161 is also used to be movably arranged relative to the first positioning member 170 when the crankshaft 410 rotates reversely and the second cleaning member 300 is between the first position and the second position.

[0074] In this example, the first positioning member 170 and the second positioning member 161 are used to limit the barrel body 130 and the crankshaft 410 so that the second cleaning member 300 can maintain a corresponding state in the first position or the second position.

[0075] In this example, the first positioning member 170 and the second positioning member 161 can be matched with a buckle and a slot, or a buckle and a deformable member, or a slot and a deformable member. The deformable member can be a deformable plastic or polyurethane material or a metal elastic member. The deformable member can also be a resettable switch, etc. In some examples, one of the first positioning member 170 and the second positioning member 161 can be an electromagnet, and the other can be a material with an electromagnet or a magnetic material. When the second cleaning member 300 is in the first position or the second position, the first positioning member 170 and the second positioning member 161 are magnetically connected to each other.

[0076] When the second cleaning member 300 is in the first position, the first positioning member 170 and the second positioning member 161 are engaged with each other, and the crankshaft 410 can form an integral body with the barrel body 130, so that the barrel body 130 can rotate synchronously with the crankshaft 410. During the overall rotation of the barrel body 130, the second cleaning member 300 can be used to clean the area to be cleaned. When the second cleaning member 300 is a blade, the second cleaning member 300 can be used to cut off the hair or thread wrapped around the first cleaning member 200 when it is in the first position. As the barrel body 130 rotates, the hair or thread can be more in contact with the second cleaning member 300, so as to better clean the hair or thread outside the barrel body 130.

[0077] When the second cleaning member 300 is in the second position, the first positioning member 170 and the second positioning member 161 cooperate with each other so that the crankshaft 410 can form a whole with the barrel body 130, so that the barrel body 130 can rotate synchronously with the crankshaft 410. During the overall rotation of the barrel body 130, the second cleaning member 300 can be stored in a preset position to reduce the interference of the second cleaning member 300 with the first cleaning member 200.

[0078] Please continue reading Figures 10 to 15 In some examples, when the second cleaning member 300 moves from the first position to the second position, the rotation angle of the crankshaft 410 is not less than 180°+n360°, where n is greater than or equal to zero.

[0079] When the crankshaft 410 rotates forward, the second positioning member 161 can be connected to at least one of the first positioning surface 1721 and the second positioning surface 1731. Therefore, the crankshaft 410 rotates forward, driving the positioning plate 171 to rotate forward, and the positioning plate 171 drives the second positioning member 161 and the barrel body 130 to rotate forward synchronously. When the crankshaft 410 rotates reversely, the second elastic member moves along the first guide slope 1722 and the second guide slope 1732 of the positioning plate 171, and cannot play a role in locking. Therefore, due to inertia, the barrel body 130 will remain stationary or slowly accelerate for a period of time, that is, the second positioning member 161 and the positioning plate 171 will produce relative rotation. When the rotation angle a satisfies greater than 180°+n*360° and less than (n+1)*360°, the crankshaft 410 stops reversing and resumes forward rotation. At this time, the second positioning member 161 presses against the first positioning surface of the positioning plate 171. At least one of the positioning surface 1721 and the second positioning surface 1731 drives the barrel body 130 to rotate synchronously with the crankshaft 410, and at this time, the relative position of the crankshaft 410 and the barrel body 130 is 180° different from that before the reversal, and the crankshaft 410 is in a state of retracting the second cleaning member 300, hiding the second cleaning member 300 to the inner side of the outer ring of the first cleaning member 200; the next time it is reversed to a position 180° different, the crankshaft 410 is in a state of extending the first cleaning member 200, switching to an integrated rolling brush of the first cleaning member 200 and the second cleaning member 300.

[0080] In some examples, the roller brush further includes an end cap 160, at least one end of the barrel body 130 in the axial direction is connected with the end cap 160, and the second positioning member 161 is connected to the end cap 160. The end cap 160 is connected to the barrel body 130 so that the end cap 160 and the barrel body 130 can rotate synchronously. On the one hand, the end cap 160 in this example can be used as an intermediate connecting member between the barrel body 130 and the second positioning member 161, and on the other hand, the end cap 160 can also be used to seal the edge of the barrel body 130 in the axial direction. The second positioning member 161 in this example can be connected to a side surface of the end cap 160 facing the mounting surface 174, and the second positioning member 161 can also be connected to the outer peripheral surface of the end cap 160. In the example of the present application, when the two ends of the barrel body 130 in the axial direction are respectively provided with end covers 160, the second positioning member 161 can be provided on one of the end covers 160, and the first positioning member 170 can be provided at the position of the crankshaft 410 corresponding to the second positioning member 161; the second positioning members 161 can also be provided on the two end covers 160, and the first positioning members 170 can be provided at the positions of the crankshaft 410 corresponding to the two end covers 160. For the convenience of description, the following is an example in which the end cover 160 at one end in the axial direction of the barrel body 130 is provided with the second positioning member 161, and the position of the crankshaft 410 corresponding to the second positioning member 161 is provided with the first positioning member 170.

[0081] Please refer to Fig.13, Fig.16 and Fig.17 In some examples, the first positioning member 170 includes a positioning plate 171 and a first protrusion 172; the positioning plate 171 is connected to the crankshaft 410, and the positioning plate 171 has a mounting surface 174; the first protrusion 172 has a first positioning surface 1721 and a first guide slope 1722; the first positioning surface 1721 is connected to the mounting surface 174 and extends away from the mounting surface 174; one end of the first guide slope 1722 along the circumference of the crankshaft 410 is connected to the mounting surface 174, and the other end is connected to the end of the first positioning surface 1721 away from the mounting surface 174; when the crankshaft 410 rotates forward and the second cleaning member 300 is in the first position or the second position, the second positioning member 161 is connected to the first positioning surface 1721, so that the positioning plate 171 moves synchronously with the barrel body 130.

[0082] The positioning plate 171 is connected to the crankshaft 410. In this example, the positioning plate 171 can be fixedly connected to the crankshaft 410. The positioning plate 171 can be generally disc-shaped. The mounting surface 174 is a surface of the positioning plate 171. In this example, the mounting surface 174 can be a surface of the positioning plate 171 along the axial direction, or the mounting surface 174 can be the outer annular surface of the positioning plate 171. The crankshaft 410 can rotate relatively. In this example, one rotation direction of the crankshaft 410 is forward rotation, and when the crankshaft 410 rotates in the other direction, it is reverse rotation. In this example, as shown in FIG. Fig.12 For example, when the crankshaft 410 rotates counterclockwise, the rotation direction is positive rotation, and when the crankshaft 410 rotates clockwise, the rotation direction is negative rotation. When the crankshaft 410 rotates forward, the positioning plate 171 can rotate synchronously with the crankshaft 410, such as Fig.16 As shown in FIG. 1 , when the crankshaft 410 rotates forward, the positioning plate 171 rotates synchronously along the direction 16 a . When the crankshaft 410 rotates reversely, the positioning plate 171 rotates in the opposite direction of 16 a .

[0083] The first convex portion 172 is disposed on the mounting surface 174, and the first convex portion 172 gradually protrudes from the mounting surface 174 toward the outside of the positioning plate 171. The first convex portion 172 forms a first guiding inclined surface 1722 and a first positioning surface 1721 on the outside of the mounting surface 174, wherein the first positioning surface 1721 is connected to the mounting surface 174 and extends in a direction away from the mounting surface 174, so that the first positioning surface 1721 forms a mating surface for mating with the second positioning member 161 on the outside of the mounting surface 174; optionally, the first positioning surface 1721 in this example can be perpendicular to the mounting surface 174. The first guiding inclined surface 1722 is connected between the mounting surface 174 and the first positioning surface 1721. When the crankshaft 410 rotates forward, the positioning plate 171 rotates synchronously along the 16a direction, and the second positioning member 161 can abut against the first positioning surface 1721.

[0084] When the second cleaning member 300 is in the first position or the second position, the second positioning member 161 is used to mutually position and cooperate with the first positioning member 170, so that the positioning plate 171 can form a whole with the barrel body 130, and the barrel body 130 can rotate synchronously with the crankshaft 410. Taking the second cleaning member 300 in the first position as an example, when the second cleaning member 300 is in the first position, the second positioning member 161 is connected to the first positioning surface 1721, which means that the second positioning member 161 can block the first positioning surface 1721, so that the positioning plate 171 and the end cover 160 can form a whole. The second positioning member 161 in this example can be magnetically connected or abutted with the first positioning surface 1721. Taking the magnetic connection as an example, the second positioning member 161 can be an electromagnet, and the first positioning surface 1721 can be a material with a magnetic material. When the second positioning member 161 is energized, the second positioning member 161 can be adsorbed on the first positioning surface 1721, so that the second positioning member 161 and the first positioning surface 1721 are connected to each other.

[0085] The second positioning member 161 can also abut against the first positioning surface 1721, so that the second positioning member 161 and the positioning plate 171 form an integral body, and the second positioning member 161 can rotate synchronously with the crankshaft 410. Since the second positioning member 161 is connected to the barrel body 130, the second cleaning member 300 is kept in the first position, and the barrel body 130 rotates synchronously along the 16a direction with the crankshaft 410. For the convenience of description, the following is an example of the second cleaning member 300 being in the first position and the second positioning member 161 abutting against the first positioning surface 1721.

[0086] When the crankshaft 410 rotates, the positioning plate 171 rotates forward synchronously, and the second positioning member 161 has not reached the position of the first positioning surface 1721, such as when the second positioning member 161 is at the position of the first guide slope 1722, the second cleaning member 300 has not reached the first position. At this time, the distance between the end of the second cleaning member 300 and the axis of the barrel body 130 is less than the first distance 7a, and the second cleaning member 300 can be in a stored or partially stored state; when the second cleaning member 300 is in the first position, the second positioning member 161 abuts against the first positioning surface 1721 so that the crankshaft 410 can maintain the current state, the second cleaning member 300 remains in the first position, and the positioning plate 171 and the end cover 160 form a whole, so that when the crankshaft 410 rotates, the barrel body 130 can rotate synchronously with the crankshaft 410. At this time, the barrel body 130 can be driven by the crankshaft 410 to rotate as a whole, so as to facilitate cleaning by the second cleaning member 300. Optionally, in this example, when the crankshaft 410 is reversed and the second cleaning member 300 is between the first position and the second position, it can be movably arranged relative to the first positioning member 170. When the crankshaft 410 is reversed, since the second positioning member 161 and the first positioning surface 1721 are separated from each other, the crankshaft 410 drives the second cleaning member 300 to move from the first position to the second position, and the crankshaft 410 and the barrel body 130 rotate asynchronously, so that the second cleaning member 300 can switch between the first position and the second position; when the second cleaning member 300 moves to the second position, the second positioning member 161 can be connected to the first positioning surface 1721, so that the positioning plate and the barrel body 130 can form a whole and move synchronously.

[0087] In this example, the second positioning member 161 can be an elastic clip. On the one hand, it can enable the second positioning member 161 to produce a certain deformation when moving along the first guide slope 1722. On the other hand, when the second positioning member 161 is connected to the first positioning surface 1721, since the second positioning member 161 can produce a certain elastic deformation, the instantaneous force between the second positioning member 161 and the first positioning surface 1721 is relatively smaller, thereby reducing the damage to the local structure caused by excessive instantaneous force.

[0088] In some examples, the first positioning member 170 also includes a second protrusion 173, the second protrusion 173 has a second positioning surface 1731 and a second guide slope 1732; the second positioning surface 1731 is connected to the mounting surface 174 and extends away from the mounting surface 174; the second guide slope 1732 is connected to the mounting surface 174 at one end along the circumference of the crankshaft 410, and is connected to the end of the second positioning surface 1731 away from the mounting surface 174; when the crankshaft 410 rotates forward and the second cleaning member 300 is in the first position or the second position, the second positioning member 161 is also connected to the second positioning surface 1731 to enable the positioning plate 171 to move synchronously with the end cover 160.

[0089] The second convex portion 173 is disposed on the mounting surface 174, and the second convex portion 173 gradually protrudes from the mounting surface 174 to the outside of the positioning plate 171, and the second convex portion 173 forms a second guiding inclined surface 1732 and a second positioning surface 1731 on the outside of the mounting surface 174, wherein the second positioning surface 1731 is connected to the mounting surface 174 and extends in a direction away from the mounting surface 174, so that the second positioning surface 1731 forms a matching surface for matching with the second positioning member 161 on the outside of the mounting surface 174; optionally, the second positioning surface 1731 in this example can be perpendicular to the mounting surface 174. The second guiding inclined surface 1732 is connected between the mounting surface 174 and the second positioning surface 1731, and when the crankshaft 410 is reversed, the positioning plate 171 rotates synchronously in the opposite direction of 16a.

[0090] When the second cleaning member 300 is in the first position or the second position, the second positioning member 161 is used to cooperate with the first positioning member 170 so that the positioning plate 171 can form a whole with the barrel body 130, and the barrel body 130 can rotate synchronously with the crankshaft 410. When the positioning plate 171 rotates and the second positioning member 161 has not reached the position of the second positioning surface 1731, such as when the second positioning member 161 is at the position of the second guide slope 1732, the second cleaning member 300 has not reached the second position. At this time, the distance between the end of the second cleaning member 300 and the axis of the barrel body 130 is less than the first distance 7a, and the second cleaning member 300 can be in a stored or partially stored state; when the second cleaning member 300 is in the second position, the second positioning member 161 abuts against the second positioning surface 1731 so that the crankshaft 410 can maintain the current state, and the second cleaning member 300 remains in the stored state of the second position, and the positioning plate 171 and the end cover 160 form a whole, so that when the crankshaft 410 rotates, the barrel body 130 can rotate synchronously with the crankshaft 410, and at this time the barrel body 130 can be driven by the crankshaft 410 to rotate as a whole. When the second cleaning member 300 moves to the second position, the second positioning member 161 can also be connected to the second positioning surface 1731, so that the positioning plate and the barrel body 130 can form a whole and move synchronously. When the crankshaft 410 is reversed, since the second positioning member 161 and the second positioning surface 1731 are separated from each other, the crankshaft 410 drives the second cleaning member 300 to move from the first position to the second position, and the crankshaft 410 and the barrel body 130 rotate asynchronously, so that the second cleaning member 300 can switch between the first position and the second position.

[0091] In this example, the first protrusion 172 and the second protrusion 173 can be arranged at intervals along the circumference of the positioning plate 171, and the first protrusion 172 and the second protrusion 173 can be used to limit the relative position of the positioning plate 171 and the end cover 160 respectively. When one of the first protrusion 172 and the second protrusion 173 abuts against the second positioning member 161, so that the positioning plate 171 and the end cover 160 form a whole, the positioning plate 171 and the end cover 160 are locked with each other. During the forward rotation of the crankshaft 410, the barrel body 130 can be rotated synchronously with the crankshaft 410, so that the area to be cleaned can be cleaned during the rotation of the barrel body 130; when the crankshaft 410 is reversed and the second positioning member 161 moves between the first positioning surface 1721 and the second positioning surface 1731, since the positioning plate 171 and the end cover 160 are not locked with each other, the barrel body 130 can rotate asynchronously during the rotation of the crankshaft 410. In this example, the shapes and sizes of the first protrusion 172 and the second protrusion 173 may be the same or different. In this example, the first protrusion 330 and the second protrusion 330 cooperate with each other. When the second cleaning member 300 is in the first position, the first protrusion 330 and the second protrusion 330 cooperate with the second positioning member 161 respectively to disperse the force between the positioning plate 171 and the end cover 160, thereby reducing the possibility of deformation of the positioning plate 171 and the end cover 160.

[0092] See also Fig.17 In some examples, the second positioning member 161 includes a spring sheet 1611, which is connected to the cylinder body 130. The spring sheet 1611 has a first elastic protrusion 1612, and the first elastic protrusion 1612 is protruded toward the mounting surface 174 at one end away from the spring sheet 1611; when the crankshaft 410 rotates forward and the second cleaning member 300 is in the first position or the second position, the first elastic protrusion 1612 elastically abuts against the first positioning surface 1721, and when the crankshaft 410 reverses, the first elastic protrusion 1612 is movably arranged relative to the first positioning surface 1721.

[0093] The spring piece 1611 may be a metal elastic member connected to the barrel body 130, or may be other elastic elements. The spring piece 1611 may be used as the main body 100 structure of the second positioning member 161, and is used to be connected to the barrel body 130. When at least one end of the barrel body 130 in the axial direction is provided with the end cap 160 described in the above example, the spring piece 1611 may be connected to the end cap 160, and the end cap 160 serves as an intermediate connecting member between the spring piece 1611 and the barrel body 130. For the convenience of description, the following is an example of the spring piece 1611 being connected to the end cap 160.

[0094] The first elastic protrusion 1612 is a protrusion structure connected to the end cover 160, wherein, when the crankshaft 410 rotates forward and the second cleaning member 300 is in the first position or the second position, the first elastic protrusion 1612 can be used to abut against the first positioning surface 1721 when the crankshaft 410 rotates forward, so that the positioning plate 171 can form an integral structure with the barrel body 130, and the crankshaft 410 can rotate synchronously with the barrel body 130; when the crankshaft 410 is reversed, the first elastic protrusion 1612 can be disengaged from the first positioning surface 1721, so that when the crankshaft 410 rotates, the barrel body 130 can rotate asynchronously.

[0095] The first elastic protrusion 1612 in this example can be integrally provided with the spring sheet 1611, or can be separately provided with the spring sheet 1611 and connected to each other. The first elastic protrusion 1612 is provided to protrude toward the mounting surface 174, which means that the first elastic protrusion 1612 protrudes from the surface of the spring sheet 1611. When the crankshaft 410 rotates, the first elastic protrusion 1612 can fit the mounting surface 174 of the positioning plate 171. When the crankshaft 410 rotates forward, the first elastic protrusion 1612 abuts against the first positioning surface 1721, so that the barrel body 130 and the positioning plate 171 can move synchronously. When the first elastic protrusion 1612 in this example abuts against the first positioning surface 1721, the deformation of the first elastic protrusion 1612 can buffer the forces of the two, thereby reducing the damage of the first positioning member 170 and the second positioning member 161.

[0096] In some examples, the spring piece 1611 also has a second elastic protrusion 1613 spaced apart from the first elastic protrusion 1612 along the circumference of the barrel body 130, and the second elastic protrusion 1613 is protruded toward the mounting surface 174 at one end away from the spring piece 1611; when the crankshaft 410 rotates forward and the second cleaning member 300 is in the first position or the second position, the second elastic protrusion 1613 elastically abuts against the second positioning surface 1731, and when the crankshaft 410 reverses, the second elastic protrusion 1613 is movably arranged relative to the second positioning surface 1731.

[0097] The second elastic protrusion 1613 is protruded toward the mounting surface 174, which means that the second elastic protrusion 1613 protrudes from the surface of the spring 1611. When the crankshaft 410 rotates, the second elastic protrusion 1613 can fit the mounting surface 174 of the positioning plate 171. When the crankshaft 410 rotates forward, the second elastic protrusion 1613 abuts against the second positioning surface 1731, so that the barrel body 130 and the positioning plate 171 can move synchronously. The first elastic protrusion 1612 and the second elastic protrusion 1613 in this example can be integrally arranged with the spring 1611, or they can be separately arranged with the spring 1611 and connected to each other. When the second elastic protrusion 1613 in this example abuts against the second positioning surface 1731, the deformation of the second elastic protrusion 1613 can buffer the forces of the two, thereby reducing the damage of the first positioning member 170 and the second positioning member 161.

[0098] The second elastic protrusion 1613 is a protrusion structure connected to the end cover 160, wherein, when the crankshaft 410 rotates forward and the second cleaning member 300 is in the first position or the second position, the first elastic protrusion 1612 can be used to abut against the first positioning surface 1721 when the crankshaft 410 rotates forward, and the second elastic protrusion 1613 can abut against the second positioning surface 1731 when the crankshaft 410 rotates forward; when the crankshaft 410 rotates reversely, the first elastic protrusion 1612 and the second elastic protrusion 1613 disengage from the first positioning surface 1721 and the second positioning surface 1731, so that the positioning plate 171 cannot drive the barrel body 130 to rotate in the same direction, so that the second cleaning member 300 can switch between the first position and the second position.

[0099] In this example, by adopting the second elastic protrusion 1613, on the one hand, the instantaneous force between the spring piece 1611 and the positioning plate 171 can be dispersed by the first elastic protrusion 1612 and the second elastic protrusion 1613, and the force can be buffered to reduce damage to the second positioning member 161 and the first positioning member 170. On the other hand, the positioning failure problem of the first positioning member 170 and the second positioning member 161 caused by the failure of the cooperation between the first elastic protrusion 1612 and the first positioning surface 1721 can be reduced.

[0100] Please continue reading Fig.17In some examples, at least one end of the barrel body 130 in the axial direction is provided with an end cover 160, and a second positioning member 161 is provided on the end cover 160; a positioning block 163 is provided on the end cover 160, and the second positioning member 161 is positioned and connected with the positioning block 163. The positioning block 163 can be used as a positioning module for the second positioning member 161, and the positioning block 163 can be a convex block or a groove provided on the end cover 160, and the positioning block 163 can be used to limit the second positioning member 161 so that the second positioning member 161 cannot move relative to the end cover 160. The number of the positioning blocks 163 in this example can be multiple, and the multiple positioning blocks 163 can be arranged at intervals on the end cover 160. In some examples, the second positioning member 161 is connected to one side of the end cover 160 along the axial direction. The second positioning member 161 can be the spring piece 1611 described in the above example, and the positioning block 163 is used to limit the spring piece 1611; wherein, the positioning block 163 can be clamped in a preset position on the spring piece 1611, and the positioning block 163 can also be screwed to the spring piece 1611. Optionally, the crankshaft 410 can be penetrated by the positioning block 163, the spring piece 1611 can be sleeved on the outside of the crankshaft 410, and the positioning block 163 can be surrounded by the outside of the spring piece 1611.

[0101] In some examples, the positioning block 163 and the second positioning member 161 are both disposed on the side of the end cover 160 facing the connecting rod 420 in the axial direction. The positioning block 163 and the second positioning member 161 in this example may not occupy the side surface of the end cover 160 away from the crankshaft 410, that is, the positioning block 163 and the second positioning member 161 are not located on the end surface of the end cover 160 facing the barrel body 130, so that the end cover 160 can better cooperate with the barrel body 130. On the one hand, the barrel body 130 can be supported by the end cover 160 so that the barrel body 130 maintains a preset connection state, improving the stability of the connection between the end cover 160 and the barrel body 130, and on the other hand, it helps to make full use of the inner space of the barrel body 130 and reduce the volume of the barrel body 130.

[0102] Please continue reading Fig.17 In some examples, one of the end cap 160 and the second positioning member 161 is provided with a boss 162, and the other is provided with a positioning hole (not shown in the figure), and the boss 162 is inserted into the positioning hole. The boss 162 may be a cylinder or a prism, and the positioning hole may be a through hole or a countersunk hole. The boss 162 is inserted into the positioning hole, so that the relative movement between the second positioning member 161 and the end cap 160 can be reduced through the cooperation of the boss 162 and the positioning hole, so as to improve the stability of the second positioning member 161, and on the other hand, the force between the end cap 160 and the second positioning member 161 can be dispersed, so as to reduce the damage to the second positioning member 161 and the end cap 160, and improve the effectiveness of the force transmission between the second positioning member 161 and the end cap 160.

[0103] In some examples, the roller brush further includes a driving device 500, which is drivingly connected to the crankshaft 410 and is used to drive the crankshaft 410 to rotate forward or reverse. The driving device 500 may be a motor component or other components that can be used to drive the crankshaft 410 to rotate. In this example, the driving device 500 is a motor. The driving device 500 can be used to drive the crankshaft 410 to rotate forward or reverse, so that the roller brush can be used to clean the area to be cleaned, and can also be used to switch the second cleaning member 300 between the first position and the second position.

[0104] Please refer to Fig.18 In some examples, the roller brush also includes a timer 600 and a controller 700, the timer 600 is used to detect the first duration that the second cleaning member 300 is in the first position; the timer 600 and the driving device 500 are electrically connected to the controller 700 respectively, and the controller 700 is used to control the driving device 500 to work according to the first duration.

[0105] The timer 600 can be used to detect the first time length that the second cleaning member 300 is in the first position. Taking the second cleaning member 300 as a brush as an example, when the first time length that the second cleaning member 300 is in the first position reaches a preset time length, the controller 700 can control the drive device 500 to operate so that the drive device 500 drives the crankshaft 410 to reverse, so as to switch the second cleaning member 300 to the second position. Taking the second cleaning member 300 as a blade as an example, when the second cleaning member 300 is in the first position, the second cleaning member 300 cuts the hair and the like on the outside of the barrel body 130. When the first time length that the second cleaning member 300 is in the first position reaches a preset time length, the controller 700 can control the drive device 500 to operate so that the drive device 500 drives the crankshaft 410 to reverse, so as to switch the second cleaning member 300 to the second position and store the blade. The timer 600 and the drive device 500 in this example can be connected to the controller 700 by wire or wirelessly, and the controller 700 can be a microcomputer, a server, etc. Optionally, the controller 700 can also be called a CPU (Central Processing Unit). The controller 700 may be an integrated circuit chip with signal processing capabilities. The controller 700 can also be a general controller 700, a digital signal controller 700 (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The general controller 700 can be a microcontroller 700 or the controller 700 can also be any conventional controller 700, etc. In addition, the controller 700 can be implemented by integrated circuit chips.

[0106] See also Fig.19 In some examples, the second cleaning member 300 includes a first bracket 310 and a brush portion 320. The first bracket 310 is movably inserted into the first avoidance groove 132 and is rotatably connected to the second end 422. The brush portion 320 is connected to the first bracket 310 and extends to a side of the first bracket 310 away from the second end 422. The end of the brush portion 320 away from the first bracket 310 forms the end of the second cleaning member 300.

[0107] The first bracket 310 is movably disposed in the first avoidance groove 132, which means that the first bracket 310 can move along the first avoidance groove 132, so that the first avoidance groove 132 can be used to form a through groove for guiding the first bracket 310. The first bracket 310 is rotatably connected to the second end 422 of the connecting rod 420, so that the first bracket 310 can move relatively under the drive of the connecting rod 420.

[0108] The brush portion 320 is connected to the first bracket 310 and extends in the direction of the second end 422 of the first bracket 310 away from the connecting rod 420. The end of the brush portion 320 away from the first bracket 310 forms the end of the second cleaning member 300. When the connecting rod 420 drives the first bracket 310 to move, the brush portion 320 can move synchronously, so that the position of the end of the second cleaning member 300 can be relatively changed, and the second cleaning member 300 can move between the first position and the second position. The brush portion 320 in this example can be a brush, and the first bracket 310 can be used as a carrier of the brush portion 320, or an intermediate connecting member between the brush portion 320 and the connecting rod 420. By using the first bracket 310 to support and connect the brush portion 320, it is convenient to fix the brush portion 320 in a preset position to improve the structural strength and stability of the brush portion 320. When the brush portion 320 is a long strip structure arranged along the axial direction of the barrel body 130, the structural ductility of the brush portion 320 can be improved by setting the first bracket 310. The brush portion 320 in this example may be fixedly connected to the first bracket 310 , or the brush portion 320 may be detachably connected to the first bracket 310 .

[0109] In some examples, a protrusion 330 is provided on the first bracket 310, and the protrusion 330 is provided to protrude toward the side of the first bracket 310 facing the crankshaft 410, and the protrusion 330 is rotatably connected to the second end 422. The protrusion 330 is an intermediate connecting member between the first bracket 310 and the connecting rod 420. By providing the protrusion 330, on the one hand, it can be used to connect the first bracket 310 with the connecting rod 420, and on the other hand, it can help to reduce the volume of the first bracket 310, thereby helping to fully utilize the space of the roller brush. On the other hand, when driving the second cleaning member 300 to move between the first position and the second position, the required force can be reduced by reducing the volume and weight of the first cleaning member 200, thereby reducing the energy consumption of the roller brush. The protrusion 330 can be provided integrally with the first bracket 310, or the protrusion 330 can be provided separately from the first bracket 310 and connected to each other.

[0110] In some examples, the first bracket 310 is provided with a first engaging portion 311, the brush portion 320 is provided with a second engaging portion 321, and the first engaging portion 311 is detachably connected to the second engaging portion 321. The first engaging portion 311 is used to connect with the second engaging portion 321 so that the brush portion 320 can be connected to the first bracket 310. In this example, the first engaging portion 311 can be detachably connected to the second engaging portion 321 by snap connection, pin connection, plug connection, screw connection, magnetic connection or other methods.

[0111] In some examples, the difference from the previous example is that the first joining portion 311 is fixedly connected to the second joining portion 321. In this example, the first joining portion 311 can be fixedly connected to the second joining portion 321 by bonding, hot melting or other connection methods.

[0112] See also Fig. 20 In some examples, the connecting rod 420 is provided with a positioning groove 423, and the crankshaft 410 is rotatably provided in the positioning groove 423, and the axis of the positioning groove 423 is eccentrically arranged with respect to the rotation center of the crankshaft 410. The positioning groove 423 may be a through groove provided in the connecting rod 420, and the positioning groove 423 in this example may be arranged near the first end 421 of the connecting rod 420, and the crankshaft 410 is provided with the positioning groove 423, and when the connecting rod 420 rotates relative to the crankshaft 410, the axis of the positioning groove 423 is eccentrically arranged with respect to the rotation center of the crankshaft 410, so that when the crankshaft 410 rotates, the second cleaning member 300 is driven to move along a preset track.

[0113] In some examples, the distance between the axis of the positioning groove 423 and the rotation center of the crankshaft 410 may be no less than 1 mm and no more than 8 mm. During the rotation of the crankshaft, the movement range of the second cleaning member between the first position and the second position may be no less than 2 mm and no more than 16 mm.

[0114] In some examples, the connecting rod 420 includes a first part 424 and a second part 425, the first part 424 is provided with a first groove 4241; the second part 425 is provided with a second groove 4251, the first part 424 is connected to the second part 425, the first groove 4241 and the second groove 4251 are combined to form a positioning groove 423; the first part 424 is formed with a first end 421, and the second part 425 is formed with a second end 422.

[0115] The first part 424 and the second part 425 are two parts of the connecting rod 420 respectively. When the first part 424 and the second part 425 are disassembled from each other, the crankshaft 410 can be easily inserted into the positioning groove 423 to facilitate the installation of the connecting rod 420 and the crankshaft 410. The first groove 4241 is a groove opened on the side of the first part 424 facing the second part 425, and the second groove 4251 is a groove on the side of the second part 425 facing the first part 424. When the first part 424 and the second part 425 are connected to each other, the first groove 4241 and the second groove 4251 are respectively enclosed on the outside of the crankshaft 410 to form the positioning groove 423. In this example, the first end 421 can be the end of the first part 424 away from the second part 425, and the second end 422 can be the end of the second part 425 away from the first part 424. In this example, the first part 424 and the second part 425 can be connected by screws, plugs, pins or other detachable connection methods. The first part 424 can also be connected to the second part 425 by hot melting or other fixed connection methods.

[0116] In some examples, there are multiple connecting rods 420, and the multiple connecting rods 420 are arranged at intervals along the axial direction of the cylinder body 130. The multiple connecting rods 420 in this example are respectively connected to different parts of the second cleaning member 300 along the axial direction of the cylinder body 130 to disperse the force of the second cleaning member 300 and reduce the possibility of deflection or falling off of the second cleaning member 300. In some examples, the second cleaning member 300 includes the first bracket 310 and the protrusion 330 described in any of the above examples, and the multiple connecting rods 420 are respectively connected to the protrusion 330 one by one.

[0117] Please refer to Fig.10 , Fig.21 as well as Fig. 22 In some examples, the roller brush also includes a second bracket 150, which is disposed in the accommodating cavity 133. The second bracket 150 is connected to the cylinder body 130. A guide groove 151 is provided on the side of the second bracket 150 facing away from the crankshaft 410. The guide groove 151 is arranged corresponding to the position of the first avoidance groove 132; when the second cleaning member 300 moves between the first position and the second position, the second cleaning member 300 is movably embedded in the guide groove 151.

[0118] The second bracket 150 is a frame structure arranged in the accommodating cavity 133, and the second bracket 150 can be sleeved on the outside of the driving assembly 400. The second bracket 150 in this example can be fixedly connected to the cylinder body 130, and the second bracket 150 can also be detachably connected to the cylinder body 130. The guide groove 151 is a groove opened on the outer peripheral wall of the second bracket 150. When the second cleaning member 300 moves between the first position and the second position, the guide groove 151 can be used to guide and limit the second cleaning member 300, so that the second cleaning member 300 can move along a preset trajectory, thereby improving the directionality and stability of the second cleaning member 300 when moving. The guide groove 151 in this example corresponds to the position of the first avoidance groove 132, so that the guide groove 151 can correspond to the position of the second cleaning member 300.

[0119] In some examples, there are multiple second brackets 150, and the multiple second brackets 150 are arranged at intervals along the axial direction of the barrel body 130. The multiple second brackets 150 in this example can be used to guide multiple parts of the second cleaning member 300 along the axial direction of the barrel body 130, so as to improve the stability and directionality of the movement of the second cleaning member 300.

[0120] In some examples, the roller brush further includes a second bracket 150, which is disposed in the accommodating cavity 133 and connected to the cylinder body 130; the cylinder body 130 includes a plurality of cylinder shells 131, which are distributed in an annular shape and enclose the accommodating cavity 133; a first avoidance groove 132 is formed between at least two cylinder shells 131; and the second bracket 150 is connected to at least two cylinder shells 131. In this example, the second bracket 150 is a frame structure disposed in the accommodating cavity 133, and the second bracket 150 can be sleeved on the outside of the driving assembly 400.

[0121] The barrel body 130 includes a plurality of barrel shells 131, which means that the barrel body 130 is composed of a plurality of independent barrel shells 131, and the number of barrel shells 131 is at least two. The plurality of barrel shells 131 are distributed in an annular shape so that the plurality of barrel shells 131 can be arranged adjacent to each other and enclosed to form a receiving cavity 133. The second bracket 150 can serve as an intermediate connecting member between the barrel shells 131 so that the plurality of barrel shells 131 can be connected and fixed to form a whole. The barrel shells 131 can be connected to the second bracket 150 by screws, pins or other connecting members.

[0122] The first avoidance groove 132 is formed between at least two adjacent cylindrical shells 131, which means that there is a gap between the adjacent parts of at least two adjacent cylindrical shells 131 to form the first avoidance groove 132, so that the second cleaning member 300 can pass through the first avoidance groove 132 and move between the first position and the second position.

[0123] In this example, by providing a plurality of cylinder shells 131, the molding of the cylinder body 130 can be facilitated to improve the convenience of processing the cylinder body 130. Optionally, the number of the cylinder shells 131 is at least three, and the plurality of cylinder shells 131 are connected and fixed by the second bracket 150. In some examples, the number of the second brackets 150 is multiple, and the plurality of second brackets 150 are arranged at intervals along the axial direction of the cylinder body 130. The plurality of second brackets 150 in this example can be respectively used for connecting and fixing different parts of the plurality of cylinder shells 131 along the axial direction to improve the reliability of the connection of the plurality of cylinder shells 131.

[0124] Please refer again Figure 5 , Figure 7 and Fig. 9 In some examples, the first cleaning member 200 includes a first rib 210 and a second rib 220, the first rib 210 is connected to the tube body 130; the second rib 220 is connected to the tube body 130, and the first rib 210 and the second rib 220 are arranged at intervals along the circumference of the tube body 130; the second cleaning member 300 is arranged between the first rib 210 and the second rib 220; at least one of the first rib 210 and the second rib 220 is arranged to protrude from the outer surface of the tube body 130; the distance between one end of at least one of the first rib 210 and the second rib 220 away from the axis of the tube body 130 and the axis of the tube body 130 is a third distance 5a.

[0125] In this example, the first rib 210 and the second rib 220 are respectively protruded from the outer circumferential surface of the tube body 130, and the distance between the end of the first rib 210 and the second rib 220 away from the axis of the tube body 130 and the axis of the tube body 130 is the third distance 5a, which refers to the projection of the first rib 210 and the second rib 220 of the tube body 130 in the first plane, and the distance between the end of the first rib 210 and the second rib 220 away from the axis of the tube body 130 and the axis of the tube body 130 is the third distance 5a. The first rib 210 and the second rib 220 are arranged at intervals along the circumference of the barrel body 130. On the one hand, a double-layer structure can be formed by the first rib 210 and the second rib 220, which can improve the cleaning efficiency of the first cleaning member 200 during the cleaning process; on the other hand, the flexibility and deformability of the first cleaning member 200 can be easily changed by reducing the total thickness of the first cleaning member 200, so as to reduce the resistance between the first cleaning member 200 and the area to be cleaned; on the other hand, the first rib 210 and the second rib 220 can be used to form a space for accommodating the second cleaning member 300. When the second cleaning member 300 is in the second position, the first rib 210 and the second rib 220 can shield the second cleaning member 300 to reduce the contact between the second cleaning member 300 and the area to be cleaned when the second cleaning member 300 is in the second position; in addition, when the second cleaning member 300 is in the first position, the first rib 210 and the second rib 220 can support and limit the first cleaning member 200 on both sides of the second cleaning member 300 along the circumference of the barrel body 130 to reduce the possibility of the second cleaning member 300 being misaligned along the circumference of the barrel body 130. In this example, the first rib 210 and the second rib 220 respectively have a length direction, and the length direction of at least one of the first rib 210 and the second rib 220 can be set to extend along the axial direction of the barrel body 130.

[0126] The second cleaning piece 300 is arranged between the first rib 210 and the second rib 220. When the second cleaning piece 300 is in the first position, the second cleaning piece 300 can protrude from the outside of the first rib 210 and the second rib 220. When the second cleaning piece 300 is a brush, the second cleaning piece 300 can be used to clean the area to be cleaned, or, when the second cleaning piece 300 is a blade, the second cleaning piece 300 can be used to cut off the hair or thread ends wrapped around the outside of the first rib 210 and the second rib 220 to clean the hair and other materials of the roller brush.

[0127] In some examples, the first rib 210 and the second rib 220 are respectively disposed on both sides of the first avoidance groove 132 along the circumference of the barrel body 130. In this example, the first rib 210 and the second rib 220 are disposed corresponding to the first avoidance groove 132, and the space between the first avoidance groove 132 and the first rib 210 and the second rib 220 can be used as a space for accommodating the second cleaning member 300.

[0128] Please continue to combine Figure 5 In some examples, the roller brush also includes a sleeve 140, which is sleeved on the outside of the tube body 130, and the first cleaning member 200 is connected to the sleeve 140; a second avoidance groove 141 is opened on the sleeve 140 at a position corresponding to the first avoidance groove 132, and the first rib 210 and the second rib 220 are respectively arranged on both sides of the second avoidance groove 141 along the circumference of the sleeve 140.

[0129] The sleeve 140 is a cylindrical structure sleeved on the outside of the tube body 130. In this example, the sleeve 140 can be used to connect the first cleaning member 200 to limit the first cleaning member 200. In this example, the sleeve 140 can be integrally provided with the first rib 210 and the second rib 220, or can be separately provided and connected to each other. The sleeve 140 in this example can be made of rubber, and the sleeve 140 can also be made of other materials.

[0130] The sleeve 140 is provided with a second avoidance groove 141, which is a through groove that penetrates the sleeve 140 in the thickness direction, and can be used to form a space for the second cleaning member 300 to move and limit. The second avoidance groove 141 is arranged corresponding to the position of the first avoidance groove 132, which means that the second cleaning member 300 can pass through the second avoidance groove 141 and the first avoidance groove 132 and move toward the accommodating cavity 133.

[0131] The first rib 210 and the second rib 220 are respectively arranged on both sides of the second avoidance groove 141 along the circumference of the sleeve 140 , and the first rib 210 and the second rib 220 are respectively arranged corresponding to the second avoidance groove 141 , and the first rib 210 and the second rib 220 are arranged close to the edge of the second avoidance groove 141 .

[0132] In some examples, the first avoidance groove 132 is provided with a first cleaning member 200 along at least one side of the circumference of the barrel body 130 .

[0133] The number of the first cleaning members 200 can be multiple, and the multiple first cleaning members 200 can be arranged at intervals along the circumference of the barrel body 130. In this example, the first cleaning member 200 is arranged on at least one side of the first avoidance groove 132 along the circumference of the barrel body 130. When the barrel body 130 rotates, the first cleaning member 200 or the second cleaning member 300 can throw out foreign objects to reduce the possibility of foreign objects entering the barrel body 130 through the first avoidance groove 132.

[0134] In some examples, the number of the first cleaning members 200 is multiple groups, and the multiple groups of first cleaning members 200 are arranged at intervals along the circumference of the barrel body 130; in this example, multiple groups of first cleaning members 200 are arranged to improve the cleaning efficiency of the roller brush. In this example, the multiple groups of first cleaning members 200 have a length direction, and the length directions of the multiple groups of first cleaning members 200 can be respectively parallel to the axis direction of the barrel body 130, and the multiple groups of first cleaning members 200 can also be arranged in a spiral along the outer circumference of the barrel body 130 or arranged according to other rules.

[0135] In some examples, the number of the second cleaning members 300 is multiple groups, and the multiple groups of second cleaning members 300 are arranged at intervals along the circumference of the barrel body 130. In this example, multiple groups of second cleaning members 300 are arranged to improve the cleaning efficiency of the roller brush. The multiple groups of second cleaning members 300 in this example have a length direction, and the length directions of the multiple groups of second cleaning members 300 can be respectively parallel to the axial direction of the barrel body 130, and the multiple groups of second cleaning members 300 can also be arranged in a spiral along the outer circumferential surface of the barrel body 130. Optionally, the second cleaning members 300 in this example can be arranged adjacent to the first cleaning member 200 along the circumference of the barrel body 130.

[0136] In some examples, a retaining ring 142 is provided at least at one end of the barrel body 130 in the axial direction, and the retaining ring 142 is provided protruding from the outer peripheral surface of the barrel body 130. The retaining ring 142 may be a convex ring structure protruding from the outer peripheral surface of the barrel body 130, and the retaining ring 142 may be provided integrally with the barrel body 130, or the retaining ring 142 may be provided separately from the barrel body 130 and connected to each other. The retaining ring 142 in this example may be used to limit the axial movement of foreign matter along the barrel body 130, which may prevent the leakage of foreign matter on the one hand, and reduce the possibility of foreign matter being entangled at the end of the barrel body 130 from the axial direction of the barrel body 130 on the other hand, and further reduce the possibility of foreign matter moving toward the axial end of the barrel body 130, and reduce the accumulation of foreign matter in the gap at the end of the barrel body 130, so as to reduce blockage and improve the cleanability of the roller brush.

[0137] Please refer again Figure 1 and Figure 4In some examples, the roller brush also includes a shell 120, a barrel body 130 is rotatably installed in the shell 120, and an inlet 121 is opened on the shell 120; a flow channel 122 is formed between the outer peripheral surface of the barrel body 130 and the inner surface of the shell 120; and the first cleaning member 200 is arranged in the flow channel 122.

[0138] The housing 120 can be the external structure of the roller brush, the housing 120 has an inlet 121, the inlet 121 is connected to the outside of the housing 120, the barrel body 130 is rotatably connected to the housing 120, and the airflow can enter the flow channel 122 between the barrel body 130 and the inner wall surface of the housing 120 through the inlet 121. When the barrel body 130 rotates relative to the housing 120, the airflow enters the flow channel 122 through the inlet 121 and flows in a preset direction. In this example, the width of the flow channel 122 between the outer peripheral surface of the barrel body 130 and the inner surface of the housing 120 can be set according to specific needs. Optionally, there can be a gap between the end of the first cleaning member 200 away from the axis of the barrel body 130 and the inner wall surface of the housing 120. Optionally, when the second cleaning member 300 is in the first position, there can be a gap between the end of the second cleaning member 300 and the inner wall surface of the housing 120.

[0139] In some examples, a side wall 123 is disposed at least at one end of the housing 120 in the axial direction, and the retaining ring 142 is sealingly matched with the side wall 123 .

[0140] The side wall 123 is the wall surface of the housing 120 in the axial direction. The retaining ring 142 is used to block between the side wall 123 of the housing 120 and the flow channel 122 to prevent foreign matter from overflowing outward through the side wall 123 of the housing 120. The sealing fit can be an elastic seal between the retaining ring 142 and the side wall 123, or other sealing methods. When the cylinder body 130 rotates in the housing 120, the retaining ring 142 rotates synchronously with the cylinder body 130. In some examples, the retaining ring 142 can be a rubber ring, and the side of the retaining ring 142 facing the side wall 123 can be elastically attached to the side wall 123. Optionally in this example, the housing 120 is provided with side walls 123 at both ends in the axial direction, and retaining rings 142 are provided at both ends in the axial direction of the cylinder body 130, and the retaining rings 142 are elastically sealed with the side walls 123 of the corresponding sides.

[0141] In some examples, the roller brush further includes a sleeve 140, which is sleeved on the outside of the barrel body 130; a second avoidance groove 141 is provided on the sleeve 140 at a position corresponding to the first avoidance groove 132, and a retaining ring 142 is connected to the sleeve 140. The sleeve 140 is a cylindrical structure sleeved on the outside of the barrel body 130, and the sleeve 140 in this example can be used as an intermediate connecting member between the barrel body 130 and the retaining ring 142. The retaining ring 142 can be integrally arranged with the sleeve 140, or the retaining ring 142 can be separately arranged with the sleeve 140 and connected to each other. Optionally, in this example, the sleeve 140 can also be used to connect the first cleaning member 200 to limit the first cleaning member 200. The sleeve 140 is provided with a second avoidance groove 141, which may be a through groove that passes through the thickness direction of the sleeve 140, and the second avoidance groove 141 may be used to form a space for the second cleaning member 300 to move and limit. In some examples, the second avoidance groove 141 is arranged corresponding to the position of the first avoidance groove 132, so that the second cleaning member 300 can pass through the second avoidance groove 141 and the first avoidance groove 132 and move toward the accommodating cavity 133.

[0142] In some examples, the first cleaning member 200 is connected to the sleeve 140, and the first cleaning members 200 are respectively arranged on both sides of the second avoidance groove 141 along the circumference of the sleeve 140. The first cleaning members 200 are arranged at intervals along the circumference of the barrel body 130. On the one hand, the first cleaning members 200 can form a double-layer structure to improve the cleaning efficiency of the first cleaning member 200 during the cleaning process; on the other hand, the first cleaning member 200 can be reduced in thickness to change the flexibility and deformability of the first cleaning member 200 to reduce the resistance between the first cleaning member 200 and the area to be cleaned; on the other hand, the first cleaning members 200 can be used to form a space for accommodating the second cleaning member 300. When the second cleaning piece 300 is in the second position, the first cleaning piece 200 can be used to cover the second cleaning piece 300 to reduce the contact between the second cleaning piece 300 and the area to be cleaned when it is in the second position; in addition, when the second cleaning piece 300 is in the first position, the first cleaning piece 200 can support and limit the first cleaning piece 200 on both sides of the second cleaning piece 300 along the circumference of the barrel body 130 to reduce the possibility of the second cleaning piece 300 being misaligned along the circumference of the barrel body 130.

[0143] Please refer again Fig.18In some examples, the roller brush also includes a driving device 500, a detection device 800 and a controller 700. The driving device 500 is connected to the crankshaft drive to drive the second cleaning member 300 to move between the first position and the second position; the detection device 800 is used to detect the area to be cleaned and send a detection signal; the driving device 500 and the driving device 500 are electrically connected to the controller 700 respectively, and the controller 700 is used to control the operation of the driving device 500 according to the detection signal.

[0144] The driving device 500 can be used to drive the second cleaning member 300 between the first position and the second position. The driving device 500 can be a motor assembly or other equipment that can be used to drive the second cleaning member 300 to move along a preset trajectory.

[0145] The detection device 800 can be used to detect the area to be cleaned and send out a detection signal. The detection device 800 can be a visual detection, odor detection or other detection device. The detection device 800 can determine the type of the area to be cleaned according to the detection result of the area to be cleaned. For example, when the detection device 800 is a visual detection device, the detection device 800 can be used to obtain whether the area to be cleaned is a smooth floor or a structure such as a carpet, and send out a detection signal.

[0146] The controller 700 may be a structure as described in any of the above examples. The controller 700 is used to obtain the detection signal of the detection device 800, and control the driving device 500 to work according to the detection signal. In this example, the detection device 800 detects that the area to be cleaned is a smooth floor and a carpet, and one of the first cleaning member 200 and the second cleaning member 300 is a rubber brush and the other is a brush. When a smooth floor is detected, the controller 700 can control the driving device 500 to work so that the second cleaning member 300 is in the second position, and the floor is cleaned by the first cleaning member 200. When a carpet is detected, the controller 700 can control the driving device 500 to work so that the second cleaning member 300 is in the first position, and the floor is cleaned by the second cleaning member 300.

[0147] See also Figure 1 Based on the above-mentioned roller brush, the present application also proposes an example of a cleaning device, which includes a main body 100, a dust box 900 and a roller brush as described in any of the above examples, wherein the roller brush is connected to the main body 100 and the dust box 900 is connected to the main body 100.

[0148] Please refer to Figure 2 , Figure 3 and Figure 4In this example, the main body 100 is connected to the roller brush, and the main body 100 can be used to collect dust or other dirt generated during the cleaning process of the roller brush. Optionally, functional components such as a disinfection device can be provided inside the main body 100. The disinfection device can be used to disinfect the output airflow or the internal structure of the main body 100; the disinfection device can be a disinfection structure such as ultraviolet light, ozone, etc. that can disinfect a preset target, or it can be a combination of multiple disinfection structures. The main body 100 is provided with a dust suction port 110, and the dust suction port 110 can be connected to the flow channel 122 of the shell 120 described in any of the above examples, so that dirt can enter the main body 100 through the dust suction port 110.

[0149] The dust box 900 can be used to collect dirt, and the dust box 900 can be used to collect impurities such as dust sucked in at the dust suction port 110. In this example, the dust box 900 is connected to the main body 100, which means that the dust box 900 can be set in the main body 100, and the dust box 900 can also be connected to the outside of the main body 100. The dust box 900 can be directly connected to the dust suction port 110 of the main body 100, and the dust box 900 can also be connected to the dust suction port 110 through a pipe. A disinfection device can be set in the dust box 900 or in at least one of the dust box 900 and the dust suction port 110. The dust box 900 in this example can be detachably connected to the main body 100 to facilitate cleaning or replacement of the dust box 900.

[0150] It is understandable that other functional components may be provided in the main body 100, which will not be elaborated in detail in this example.

[0151] The above are only implementation methods of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A roller brush, characterized in that: include: The barrel body; A first cleaning member connected to the barrel body, wherein the first cleaning member is arranged to protrude from the outer peripheral surface of the barrel body; as well as A second cleaning member is movably connected to the barrel body between a first position and a second position, the second cleaning member having a terminal end away from the axis of the barrel body; Among them, when the second cleaning piece is in the first position, the distance between the end and the axis of the barrel body is a first distance, when the second cleaning piece is in the second position, the distance between the end and the axis of the barrel body is a second distance, and the distance between the end of the first cleaning piece away from the axis of the barrel body and the axis of the barrel body is a third distance, and the first distance, the third distance and the second distance decrease in sequence.

2. The roller brush according to claim 1, characterized in that: The barrel body is provided with a first avoidance groove, and when the second cleaning member is in the second position, the second cleaning member is at least partially embedded in the first avoidance groove.

3. The roller brush according to claim 2, characterized in that: The cylinder body is provided with a containing cavity, and the first avoidance groove is connected to the containing cavity; the roller brush further includes: A driving assembly is at least partially disposed in the accommodating cavity; the second cleaning member is movably disposed in the first avoidance groove and is connected to the driving assembly; the driving assembly is used to drive the second cleaning member to move between the first position and the second position.

4. The roller brush according to claim 3, characterized in that: The drive assembly includes at least one of a crank slider mechanism, a crank rocker mechanism, a parallelogram mechanism and a multi-axis robotic arm.

5. The roller brush according to claim 4, characterized in that: The drive assembly comprises: a crankshaft rotatably connected to the barrel body; and A connecting rod having a first end and a second end, wherein the first end is rotatably connected to the crankshaft, and the second end is rotatably connected to the second cleaning member via a rotating shaft, wherein the rotating shaft is eccentrically arranged with respect to the rotation center of the crankshaft.

6. The roller brush according to claim 5, characterized in that: A first positioning member is provided on the crankshaft, and a second positioning member is provided on the barrel body; the second positioning member is used to be connected to the first positioning member when the crankshaft rotates forward and the second cleaning member is in the first position or the second position, and the second positioning member is also used to be movably arranged relative to the first positioning member when the crankshaft rotates reversely and the second cleaning member is between the first position and the second position.

7. The roller brush according to claim 6, characterized in that: The first positioning member comprises: a positioning plate connected to the crankshaft, the positioning plate having a mounting surface; and A first protrusion is connected to the mounting surface, and the first protrusion has a first positioning surface and a first guiding inclined surface; the first positioning surface is connected to the mounting surface and extends in a direction away from the mounting surface; one end of the first guiding inclined surface along the circumference of the crankshaft is connected to the mounting surface, and the other end is connected to an end of the first positioning surface away from the mounting surface; when the crankshaft rotates forward and the second cleaning member is in the first position or the second position, the second positioning member is connected to the first positioning surface to enable the positioning plate to move synchronously with the cylinder body.

8. The roller brush according to claim 7, characterized in that: The first positioning member also includes: A second protrusion is connected to the mounting surface, and the second protrusion has a second positioning surface and a second guide slope; the second positioning surface is connected to the mounting surface and extends in a direction away from the mounting surface; one end of the second guide slope along the circumference of the crankshaft is connected to the mounting surface, and the other end is connected to an end of the second positioning surface away from the mounting surface; when the crankshaft rotates forward and the second cleaning member is in the first position or the second position, the second positioning member is also connected to the second positioning surface to enable the positioning plate to move synchronously with the cylinder body.

9. The roller brush according to claim 8, characterized in that: The second positioning member comprises: A spring sheet is connected to the cylinder body, and the spring sheet has a first elastic protrusion, and one end of the first elastic protrusion is away from the spring sheet and protrudes toward the mounting surface; when the crankshaft rotates forward and the second cleaning member is in the first position or the second position, the first elastic protrusion elastically abuts against the first positioning surface, and when the crankshaft reverses, the first elastic protrusion is movably arranged relative to the first positioning surface.

10. The roller brush according to claim 9, characterized in that: The spring sheet also has a second elastic protrusion spaced apart from the first elastic protrusion along the circumference of the barrel body, and the second elastic protrusion is protruded toward the mounting surface at one end away from the spring sheet; when the crankshaft rotates forward and the second cleaning member is in the first position or the second position, the second elastic protrusion elastically abuts against the second positioning surface, and when the crankshaft reverses, the second elastic protrusion is movably arranged relative to the second positioning surface.

11. The roller brush according to claim 6, characterized in that: When the second cleaning member moves from the first position to the second position, the rotation angle of the crankshaft is not less than 180°+n360°, where n is greater than or equal to zero.

12. The roller brush according to claim 6, characterized in that: The roller brush also includes: An end cover is connected to at least one axial end of the cylinder body, and the second positioning member is connected to the end cover; a positioning block is provided on the end cover, and the second positioning member is positioned and connected to the positioning block.

13. The roller brush according to claim 12, characterized in that: The positioning block and the second positioning member are both arranged on a side of the end cover facing the connecting rod in the axial direction.

14. The roller brush according to claim 12, characterized in that: One of the end cover and the second positioning member is provided with a convex column, and the other is provided with a positioning hole, and the convex column is inserted into the positioning hole.

15. The roller brush according to claim 5, characterized in that: The roller brush also includes: A driving device, drivingly connected to the crankshaft, for driving the crankshaft to rotate forward or reverse; a timer, configured to detect a first time duration during which the second cleaning member is in the first position; and The controller, the timer and the driving device are electrically connected to the controller respectively, and the controller is used to control the driving device to work according to the first duration.

16. The roller brush according to any one of claims 5 to 15, characterized in that: The second cleaning member comprises: A first bracket is movably arranged in the first avoidance groove and is rotatably connected to the second end; and The brush part is connected to the first bracket and extends to the side of the first bracket away from the second end; the end of the brush part away from the first bracket forms the end of the second cleaning member.

17. The roller brush according to any one of claims 5 to 15, characterized in that: The connecting rod is provided with a positioning groove, the crankshaft is rotatably inserted into the positioning groove, and the axis of the positioning groove is eccentrically arranged with respect to the rotation center of the crankshaft.

18. The roller brush according to any one of claims 5 to 15, characterized in that: The roller brush also includes: The second bracket is arranged in the accommodating cavity, the second bracket is connected to the barrel body, and a guide groove is provided on the side of the second bracket facing away from the crankshaft, and the guide groove is arranged corresponding to the position of the first avoidance groove; when the second cleaning member moves from the first position to the second position, the second cleaning member is movably embedded in the guide groove; there are multiple second brackets, and the multiple second brackets are arranged at intervals along the axial direction of the barrel body.

19. The roller brush according to any one of claims 2 to 15, characterized in that: The first cleaning member comprises: A first rib connected to the tube body; and The second rib is connected to the tube body, and the first rib and the second rib are arranged at intervals along the circumference of the tube body; the second cleaning member is arranged between the first rib and the second rib; at least one of the first rib and the second rib is arranged to protrude from the outer surface of the tube body; the distance between one end of at least one of the first rib and the second rib away from the axis of the tube body and the axis of the tube body is the third distance.

20. The roller brush according to any one of claims 1 to 15, characterized in that: One of the first cleaning member and the second cleaning member is a rubber brush, and the other is a hair brush; Alternatively, the first cleaning member is a rubber brush and / or a hair brush, and the second cleaning member is a blade.

21. The roller brush according to any one of claims 5 to 14, characterized in that The roller brush also includes: a driving device, drivingly connected to the crankshaft, for driving the second cleaning member to move between the first position and the second position; A detection device, used to detect the area to be cleaned and send out a detection signal; and The controller is electrically connected to the driving device and the driving device respectively, and the controller is used to control the driving device to work according to the detection signal.

22. A cleaning device, characterized in that: include: main body; A dust collecting box connected to the main body; as well as The roller brush according to any one of claims 1 to 21, wherein the roller brush is connected to the main body.

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