Cleaning assembly and cleaning robot

Abstract

The application discloses a cleaning assembly and a cleaning robot. The cleaning assembly comprises a shaft body, a first rubber strip and a second rubber strip. The shaft body comprises a first end and a second end along the axial direction of the shaft body. The shaft body has a rotation axis. The first rubber strip is arranged in a spiral shape on the circumferential side of the shaft body along the axial direction of the shaft body and extends from the first end to the second end. The first distance between the side edge of the first rubber strip away from the circumferential side of the shaft body and the rotation axis remains unchanged from the first end to the second end. The second rubber strip is arranged in a spiral shape on the circumferential side of the shaft body along the axial direction of the shaft body and extends from the first end to the second end. The second rubber strip comprises a first section and a second section connected to each other. The second distance between the side edge of the first section away from the circumferential side of the shaft body and the rotation axis remains unchanged from the first end to the second end. The third distance between the side edge of the second section away from the circumferential side of the shaft body and the rotation axis gradually decreases from the first end to the second end. The cleaning assembly can improve the dust removal rate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning equipment, in particular to a cleaning assembly and a cleaning robot. BACKGROUND

[0002] The cleaning robot as a kind of intelligent cleaning household electrical appliances has been popularized more and more in recent years. With the development of the sweeping robot product, new demands are put forward for the cleaning ability of the sweeping robot. In the family, long foreign matters such as hair and pet hair are often difficult to remove, sometimes they are left on the ground, and sometimes they are entangled on the cleaning assembly, which may cause the cleaning assembly to be stuck and even cause the motor of the cleaning assembly to be burnt out. In the related art, the diameter of the cleaning assembly is controlled to move the hair, the hair and the like to the end with smaller diameter, and finally sucked into the dust box. However, due to the structure of the cleaning assembly, one end is large and the other end is small, which results in a large gap between the cleaning assembly and the ground and the dust collecting port. The small end of the cleaning assembly cannot contact the ground and cannot clean the ground, resulting in low dust removal rate. SUMMARY

[0003] The present application provides a cleaning assembly and a cleaning robot to solve at least one of the above technical problems.

[0004] The cleaning assembly provided by the present application comprises:

[0005] A shaft body comprising a first end and a second end in the axial direction of the shaft body, the shaft body having a rotation axis;

[0006] A first adhesive tape arranged in a spiral shape on the circumferential side of the shaft body in the axial direction of the shaft body and extending from the first end to the second end, the distance between the side edge of the first adhesive tape away from the circumferential side of the shaft body and the rotation axis being a first distance, the first distance remaining unchanged in the direction from the first end to the second end, and

[0007] A second rubber strip is arranged axially and spirally on the circumferential side of the shaft body from the first end to the second end, and comprises a first section and a second section connected with each other. The distance between the side of the first section away from the circumferential side of the shaft body and the rotation axis is a second distance, which remains unchanged from the first end to the second end. The distance between the side of the second section away from the circumferential side of the shaft body and the rotation axis is a third distance, which gradually decreases from the first end to the second end. In the cleaning assembly, the first distance between the side of the first rubber strip away from the circumferential side of the shaft body and the rotation axis remains unchanged from the first end to the second end, and the second distance between the side of the first section away from the circumferential side of the shaft body and the rotation axis remains unchanged from the first end to the second end. Therefore, when the cleaning assembly works, the entire first rubber strip and the first section can clean the hair and the like on the ground, and the entire first rubber strip and the first section can be in contact with the ground, so that the dust removal rate is improved, and the second section can make the hair and the like easily enter the dust collecting port.

[0008] In some embodiments, the hardness of the first rubber strip is less than the hardness of the second rubber strip.

[0009] In some embodiments, the thickness of the first rubber strip gradually decreases in a direction away from the shaft body along the radial direction of the shaft body.

[0010] In some embodiments, the first rubber strip comprises a first part and a second part, and the first part is connected with the second part in a direction away from the shaft body along the radial direction of the shaft body, and the thickness of the second part is less than the thickness of the first part.

[0011] In some embodiments, the first rubber strip comprises a third section and a fourth section connected with each other, and the fourth section comprises a third part and a fourth part, and the third part is connected with the fourth part in a direction away from the shaft body along the radial direction of the shaft body, and the thickness of the fourth part is less than the thickness of the third part.

[0012] In some embodiments, the third section is arranged corresponding to the first section along the circumferential direction of the shaft body, the fourth section is arranged corresponding to the second section along the circumferential direction of the shaft body, and the shape of the third part is the same as the shape of the second section.

[0013] In some embodiments, the outer boundary line of the normal projection of the first rubber strip and the second rubber strip on the vertical plane of the rotation axis surrounds the rotation axis by 360 degrees.

[0014] In some embodiments, two first adhesive strips and two second adhesive strips are arranged on the shaft body, and the first adhesive strips and the second adhesive strips are arranged alternately along the circumferential direction of the shaft body.

[0015] In some embodiments, the cleaning assembly comprises a plurality of bristle rows arranged spirally along the axial direction of the shaft body on the circumferential side of the shaft body and extending from the first end to the second end, and at least one bristle row is arranged between an adjacent first adhesive strip and an adjacent second adhesive strip.

[0016] In some embodiments, the cleaning assembly comprises a first end cover, a bracket and a hair blocking ring, the first end is provided with a protrusion along the axial direction of the shaft body, a bearing is sleeved on the protrusion, the bracket is mounted on the first end and connected to the outer ring of the bearing, the hair blocking ring is arranged on the circumferential side of the shaft body and separates the bearing from the first adhesive strip and separates the bearing from the second adhesive strip, the bracket is provided with a through hole, and the first end cover is fixedly connected with the protrusion through the through hole.

[0017] In some embodiments, the circumferential side of the shaft body is provided with a first clamping groove and a second clamping groove, the first adhesive strip is connected with a first clamping strip, the second adhesive strip is connected with a second clamping strip, the first clamping strip is clamped in the first clamping groove to mount the first adhesive strip on the circumferential side of the shaft body, and the second clamping strip is clamped in the second clamping groove to mount the second adhesive strip on the circumferential side of the shaft body.

[0018] In some embodiments, the first clamping groove is formed with a first opening on the end face of the second end, the second clamping groove is formed with a second opening on the end face of the second end, and the cleaning assembly comprises a second end cover, the second end cover is mounted on the second end and covers the first opening and the second opening.

[0019] In some embodiments, the shaft body is a hollow structure.

[0020] A cleaning robot according to an embodiment of the present application comprises the cleaning assembly according to any one of the above embodiments.

[0021] In the cleaning robot, the first distance between the side edge of the first adhesive strip away from the circumferential side of the shaft body and the rotation axis of the shaft body is constant in the direction from the first end to the second end, and the second distance between the side edge of the first section away from the circumferential side of the shaft body and the rotation axis of the shaft body is constant in the direction from the first end to the second end, so that the entire first adhesive strip and the first section can sweep the hair, fur and the like on the ground when the cleaning assembly is working, the entire first adhesive strip and the first section can be in contact with the ground, and the dust removal rate is improved, and the second section can make the hair, fur and the like easily enter the dust collecting port.

[0022] In some embodiments, the cleaning assembly is configured to be disposed parallel to the ground.

[0023] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings and claims.

[0025] Figures 1 to 3 is a perspective view of a cleaning assembly according to an embodiment of the present application;

[0026] Figure 4 is a right side view of a cleaning assembly according to an embodiment of the present application;

[0027] Figure 5 is a front view of a cleaning assembly according to an embodiment of the present application;

[0028] Figure 6 is a cross-sectional view of the cleaning assembly in Figure 5 along line A-A;

[0029] Figure 7 is another front view of a cleaning assembly according to an embodiment of the present application;

[0030] Figure 8 is a cross-sectional view of the cleaning assembly in Figure 7 along line B-B;

[0031] Figure 9 is a schematic view of the distance between the rotation axis of the shaft body and the side of the first rubber strip according to an embodiment of the present application;

[0032] Figure 10 is a schematic view of the distance between the rotation axis of the shaft body and the side of the second rubber strip according to an embodiment of the present application;

[0033] Figure 11 is a schematic view of the structure of the first rubber strip when laid flat according to an embodiment of the present application;

[0034] Figure 12 is a schematic view of the structure of the second rubber strip when laid flat according to an embodiment of the present application;

[0035] Figures 13 to 14 is a schematic view of the structure of the connection between the first rubber strip and the first clamping strip according to an embodiment of the present application;

[0036] Figures 15 to 18 is a schematic view of the structure of the connection between the second rubber strip and the second clamping strip according to an embodiment of the present application;

[0037] Figure 19is another structure schematic view of the first adhesive strip and the first clamping strip connection of the embodiment of the present application;

[0038] Figures 20 to 22 is a cross-sectional schematic view of the first adhesive strip of the embodiment of the present application;

[0039] Figures 23 to 24 is a front view of the cleaning assembly of the embodiment of the present application;

[0040] Figure 25 is a right view of the cleaning assembly of the embodiment of the present application;

[0041] Figure 26 is a cross-sectional view of the cleaning assembly of the embodiment of the present application;

[0042] Figure 27 is a schematic view of the relationship between the normal projection of the adhesive strip on the vertical plane of the rotation axis of the shaft body and the rotation axis of the embodiment of the present application.

[0043] Main element symbol explanation:

[0044] Cleaning assembly 100, shaft body 12, first adhesive strip 14, second adhesive strip 16, first end 18, second end 20, first section 22, second section 24, first part 26, second part 28, third section 30, fourth section 32, third part 34, fourth part 36, bristle row 38, first end cover 40, support 42, hair blocking ring 44, convex part 46, bearing 48, through hole 50, cover part 52, connecting part 54, first clamping groove 56, second clamping groove 58, first clamping strip 60, second clamping strip 62, first opening 64, second opening 66, second end cover 68, body 70, closed part 72. DETAILED DESCRIPTION

[0045] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below are exemplary and are used only for explaining the present application, and cannot be understood as limiting the present application.

[0046] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. For the purpose of simplification, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0047] Furthermore, the terms "first", "second", etc. are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or an ordered sequence. Thus, features defined with "first", "second" can include one or more features, explicitly or implicitly.

[0048] In the description of the application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0049] In the present application, unless otherwise explicitly specified and limited, the "above" or "below" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "above", "over" and "on" of a first feature to a second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature is higher in horizontal height than the second feature. The "below", "under" and "under" of a first feature to a second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the first feature is lower in horizontal height than the second feature.

[0050] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected. It can be a mechanical connection, or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] Please refer to Figures 1 to 8The cleaning assembly 100 implemented by the present application comprises a shaft body 12, a first rubber strip 14 and a second rubber strip 16. The shaft body 12 comprises a first end 18 and a second end 20 in the axial direction of the shaft body 12, and the shaft body 12 has a rotation axis L. The first rubber strip 14 is arranged in a spiral shape on the circumferential side of the shaft body 12 in the axial direction of the shaft body 12 and extends from the first end 18 to the second end 20, and the distance between the side edge of the first rubber strip 14 away from the circumferential side of the shaft body 12 and the rotation axis L of the shaft body 12 is a first distance D1, which remains unchanged in the direction from the first end 18 to the second end 20.

[0052] The second rubber strip 16 is arranged in a spiral shape on the circumferential side of the shaft body 12 in the axial direction of the shaft body 12 and extends from the first end 18 to the second end 20, and the second rubber strip 16 comprises a first section 22 and a second section 24 connected to each other, the distance between the side edge of the first section 22 away from the circumferential side of the shaft body 12 and the rotation axis L of the shaft body 12 is a second distance D2, which remains unchanged in the direction from the first end 18 to the second end 20, and the distance between the side edge of the second section 24 away from the circumferential side of the shaft body 12 and the rotation axis L of the shaft body 12 is a third distance D3, which gradually decreases in the direction from the first end 18 to the second end 20.

[0053] In the above cleaning assembly 100, the first distance D1 between the side edge of the first rubber strip 14 away from the circumferential side of the shaft body 12 and the rotation axis L of the shaft body 12 remains unchanged in the direction from the first end 18 to the second end 20, and the second distance D2 between the side edge of the first section 22 away from the circumferential side of the shaft body 12 and the rotation axis L of the shaft body 12 remains unchanged in the direction from the first end 18 to the second end 20, so that the entire first rubber strip 14 and the first section 22 can clean the hair, fur and the like on the ground when the cleaning assembly 100 is working, the entire first rubber strip 14 and the first section 22 can be in contact with the ground, thereby improving the dust removal rate, and the second section 24 can make the hair, fur and the like easily enter the dust collecting port.

[0054] Specifically, the cleaning assembly 100 can be applied to a cleaning robot. The cleaning robot includes but is not limited to a sweeping robot, a sweeper, a sweeping and mopping all-in-one machine, a double-turntable sweeper, a scrubber (such as a handheld scrubber), a dust collector and the like.

[0055] The cleaning robot can comprise a housing, the bottom surface of the housing is provided with a receiving groove, the cleaning assembly 100 can be partially accommodated in the receiving groove, and the first end 18 of the shaft body 12 can be connected to a motor in the housing, so that the motor can drive the cleaning assembly 100 to rotate. When the cleaning robot is placed on the ground, the first rubber strip 14 and the first section 22 can both be in contact with the ground, and the second section 24 can be spaced apart from the ground by a certain distance to form a gap, the side wall of the receiving groove can be provided with a dust collecting port, and the dust collecting port is arranged close to the second end 20. Optionally, the cleaning assembly 100 can be used as a middle sweeping assembly.

[0056] When the cleaning robot works, the motor drives the cleaning assembly 100 to rotate around the rotation axis L, and the first rubber strip 14 and the first section 22 can collect long and thin sundries such as hair. Since the first rubber strip 14 is arranged in a helical shape along the axial direction of the shaft body 12 on the circumferential side of the shaft body 12 and extends from the first end 18 to the second end 20, and the second rubber strip 16 is arranged in a helical shape along the axial direction of the shaft body 12 on the circumferential side of the shaft body 12 and extends from the first end 18 to the second end 20, when the cleaning assembly 100 rotates, the first rubber strip 14 and the second rubber strip 16 can push the long and thin sundries from the first end 18 to the second end 20.

[0057] When the long and thin sundries (such as hair) from the first end 18 to the second end 20, around the outside edge of the rubber strip, to the position of the second section 24, since the third distance is reduced, there is a gap between the long and thin sundries and the first section 22, and at the same time, the fan can form a negative pressure in the dust box, and the outside of the dust collection port is near the atmospheric pressure, that is, the position of the cleaning assembly 100 is the atmospheric pressure, so that the long and thin sundries are more easily detached at the second section 24 and are sucked into the dust box through the dust collection port. During the working process of the cleaning robot, when the first rubber strip 14 contacts the ground and the first section 22 contacts the ground, the entire side of the first rubber strip 14 away from the circumferential side of the shaft body 12 can contact the ground, and the entire side of the first section 22 away from the circumferential side of the shaft body 12 can contact the ground. The first rubber strip 14 and the first section 22 can form a support outside the shaft body 12 without affecting the detachment of the long and thin sundries from the cleaning assembly 100, prevent the long and thin sundries from winding around the shaft body 12, and as much as possible improve the dust removal rate and particle recovery rate, and ensure the cleaning effect. The second section 24 of the second rubber strip 16 is separated from the ground by a certain distance, and the second section 24 is used to facilitate the detachment of the long and thin sundries from the rubber strip. The first rubber strip 14 and the second rubber strip 16 complement each other and take into account the anti-winding and dust removal capacity of the cleaning assembly 100. The axial direction of the shaft body 12 is the direction of the rotation axis L. Figure 3

[0058] Optionally, the material of the first rubber strip 14 and the material of the second rubber strip 16 can be the same or different, which is not specifically limited. In an example, the material of the first rubber strip 14 and the material of the second rubber strip 16 are silica gel.

[0059] Optionally, the first rubber strip 14 and the second rubber strip 16 are separated by a certain distance.

[0060] The length of the first section 22 can be equal to or different from the length of the second section 24. When the length of the first section 22 is different from the length of the second section 24, the length of the first section 22 can be greater than the length of the second section 24 (as shown in FIG. 2A) or less than the length of the second section 24 (as shown in FIG. 2B). Figures 15 to 16 Figures 17 to 18 ​​The first distance D1 is constant in the direction from the first end 18 to the second end 20, please refer to

[0061] It should be noted that the distance can refer to the vertical distance between the side and the rotation axis L of the shaft body 12, and the distance remains unchanged can refer to the distance between the side and the rotation axis L of the shaft body 12 is completely equal everywhere, or the difference between the two distances between the side and the rotation axis L of the shaft body 12 at two arbitrary positions is within the desired range. The distance gradually decreases can be continuous reduction in distance, or the distance is reduced in steps.

[0062] The first distance D1 is constant in the direction from the first end 18 to the second end 20, please refer to Figure 9 Two points M1 and M2 can be taken arbitrarily on the side of the first adhesive strip 14 away from the circumferential side of the shaft body 12, the distance between M1 and the rotation axis L of the shaft body 12 is D11, the distance between M2 and the rotation axis L of the shaft body 12 is D12, D11=D12, or |D11-D12| is within the desired range.

[0063] The second distance D2 is constant in the direction from the first end 18 to the second end 20, please refer to Figure 10 Two points N1 and N2 can be taken arbitrarily on the side of the first segment 22 away from the circumferential side of the shaft body 12, the distance between N1 and the rotation axis L of the shaft body 12 is D21, the distance between N2 and the rotation axis L of the shaft body 12 is D22, D21=D22, or |D21-D22| is within the desired range.

[0064] The third distance D3 gradually decreases in the direction from the first end 18 to the second end 20, please refer to Figure 10 Two points K1 and K2 can be taken on the side of the second segment 24 away from the circumferential side of the shaft body 12, K1 is closer to the first end 18, K2 is closer to the second end 20, the distance between K1 and the rotation axis L of the shaft body 12 is D31, the distance between K2 and the rotation axis L of the shaft body 12 is D32, D31>D32.

[0065] In one embodiment, please refer to Figure 11 The planar shape of the first adhesive strip 14 when laid flat is rectangular, which can be understood as the state that the first adhesive strip 14 has not been installed on the shaft body 12. Please refer to Figure 12 The planar shape of the first segment 22 is rectangular when the second adhesive strip 16 is laid flat, and the height of the second segment 24 gradually decreases in the direction from the first end 18 to the second end 20, which can be understood as the state that the second adhesive strip 16 has not been installed on the shaft body 12.

[0066] Optionally, the first glue strip 14 can be a one-piece glue strip, and the second glue strip 16 can be a one-piece glue strip.

[0067] Optionally, the helical line along which the first glue strip 14 spirals is the same as the helical line along which the second glue strip 16 spirals, so that the space between the first glue strip 14 and the second glue strip 16 is regular, which is conducive to the collection of sundries.

[0068] In some embodiments, the shaft body 12 is a hollow structure.

[0069] In this way, the arrangement of the cleaning robot in space, the endurance, and the cost reduction are facilitated.

[0070] Specifically, the shaft body 12 of the cleaning assembly 100 is a cantilever structure, only the first end 18 is connected to the motor of the cleaning robot, and the second end 20 is suspended to facilitate the disengagement of slender sundries. Therefore, compared with the shaft body of a solid structure, the shaft body 12 of a hollow structure is lighter in weight and generates less load at the cantilever end (the second end 20), which is conducive to improving the service life of the cleaning assembly 100. Meanwhile, the lighter weight enables the output motor to be smaller in power, which is conducive to the arrangement of the cleaning robot in space, the endurance, and the cost reduction.

[0071] In one embodiment, the hardness of the first glue strip 14 is less than the hardness of the second glue strip 16.

[0072] In this way, the first glue strip 14 is more flexible and reduces the resistance when the cleaning robot moves.

[0073] Specifically, when the cleaning robot is placed on the ground, the entire side edge of the first glue strip 14 away from the circumferential side of the shaft body 12 is in contact with the ground, and a part (the first section 22) of the second glue strip 16 is in contact with the ground. The hardness of the first glue strip 14 is less than the hardness of the second glue strip 16, so that the first glue strip 14 is more flexible than the second glue strip 16, thereby reducing the resistance when the cleaning robot moves and improving the cleaning efficiency. The flexible first glue strip 14 can also form a larger contact area with the ground and can clean more sundries.

[0074] In one example, the hardness of the first glue strip 14 is 40 degrees, and the hardness of the second glue strip 16 is 60 degrees. It can be understood that the present application does not specifically limit the numerical values of the hardness of the first glue strip 14 and the hardness of the second glue strip 16.

[0075] In some embodiments, please refer to Figure 13 and Figure 14 The thickness T1 of the first glue strip 14 gradually decreases in the radial direction of the shaft body 12 away from the shaft body 12.

[0076] In this way, the first adhesive strip 14 has a smaller thickness at the part in contact with the ground, and is more easily bent, reducing the resistance when the cleaning robot moves.

[0077] Specifically, the thickness T1 of the first adhesive strip 14 gradually decreases along the radial direction of the shaft body 12 away from the shaft body 12, so that the thickness T1 of the first adhesive strip 14 gradually decreases from the root to the tip. The thickness of the root is larger, and the connection with the shaft body 12 is more stable. The thickness of the tip is smaller, and the tip is more easily bent when it is in contact with the ground, reducing the resistance when the cleaning robot moves. The radial direction of the shaft body 12 is perpendicular to the axial direction of the shaft body 12.

[0078] In other embodiments, the thickness T1 of the first adhesive strip 14 is constant along the radial direction of the shaft body 12 away from the shaft body 12, i.e. the first adhesive strip 14 is an equal-thickness adhesive strip. The thickness configuration of the second adhesive strip 16 can be the same as or different from that of the first adhesive strip 14, which is not specifically limited in the present application.

[0079] In some embodiments, please refer to Figures 19 to 22 The first adhesive strip 14 includes a first part 26 and a second part 28. Along the radial direction of the shaft body 12 away from the shaft body 12, the first part 26 connects the shaft body 12 and the second part 28, and the thickness T2 of the second part 28 is smaller than the thickness T3 of the first part 26.

[0080] In this way, the thickness T2 of the second part 28 is smaller, and is more easily bent, reducing the resistance when the cleaning robot moves.

[0081] Specifically, along the radial direction of the shaft body 12 away from the shaft body 12, the first part 26 connects the shaft body 12 and the second part 28, and the second part 28 is the part of the first adhesive strip 14 in contact with the ground, and the first part 26 is the part of the first adhesive strip 14 connected to the shaft body 12. The thickness T3 of the first part 26 is larger, and the connection with the shaft body 12 is more stable. The thickness T2 of the second part 28 is smaller, and the second part 28 is more easily bent when it is in contact with the ground, reducing the resistance when the cleaning robot moves.

[0082] In some embodiments, the thickness configuration of the second adhesive strip 16 can be the same as or different from that of the first adhesive strip 14, which is not specifically limited in the present application.

[0083] In some embodiments, please refer to Figure 23 and Figure 25The first adhesive strip 14 comprises a third section 30 and a fourth section 32 connected with each other, the fourth section 32 comprises a third part 34 and a fourth part 36, the third part 34 is connected with the fourth part 36 in a direction away from the shaft body 12 radially, and the thickness of the fourth part 36 is less than that of the third part 34.

[0084] In this way, the first adhesive strip 14 can be thinned to reduce the resistance when the cleaning robot moves.

[0085] Specifically, when the cleaning robot is placed on the ground, the third section 30 and the fourth section 32 are in contact with the ground. In a direction away from the shaft body 12 radially, the third part 34 is connected with the fourth part 36, the fourth part 36 is part of the fourth section 32 in contact with the ground, and the third part 34 is part of the fourth section 32 connected with the shaft body 12. The thickness of the third part 34 is larger, which can make the connection with the shaft body 12 more stable, and the thickness of the fourth part 36 is smaller, which can make the fourth part 36 more flexible when it is in contact with the ground, thereby reducing the resistance when the cleaning robot moves. The fourth part 36 can be arranged in the manner shown in the drawings. Alternatively, the third section 30 can be of uniform thickness or of gradually changing thickness. Figures 20 to 22

[0086] Alternatively, the length of the third section 30 can be greater than, less than, or equal to the length of the fourth section 32, which is not specifically limited herein.

[0087] It should be noted that when the thickness of a part is gradually changing, the thickness of the part can be represented by the average thickness of the part.

[0088] In some embodiments, the thickness configuration of the second adhesive strip 16 can be the same as or different from that of the first adhesive strip 14, which is not specifically limited herein.

[0089] In some embodiments, please refer to Figure 23 and Figure 24 The third section 30 is arranged corresponding to the first section 22 in the circumferential direction C1 of the shaft body 12, the fourth section 32 is arranged corresponding to the second section 24 in the circumferential direction C1 of the shaft body 12, and the shape of the third part 34 is the same as that of the second section 24.

[0090] In this way, the hair, fur, and other long and thin debris can be more effectively collected, and the cleaning effect can be improved.

[0091] ​Specifically, when the cleaning robot is placed on the ground, the fourth section 32 is bent by the ground, and there is a gap between the bent fourth section 32 and the ground. The gap between the bent fourth section 32 and the ground and the gap between the second section 24 and the ground correspond in the circumferential direction C1 of the shaft body 12. When the cleaning assembly 100 rotates, the first rubber strip 14 and the second rubber strip 16 have substantially the same shape, making it easier for long debris to fall off the rubber strip.

[0092] In some embodiments, referring to Figure 27 The outer boundary line of the orthographic projection P2 of the first rubber strip 14 and the second rubber strip 16 together on the vertical plane P1 of the rotation axis L is 360 degrees around the rotation axis L.

[0093] In this way, the dust removal rate can be further improved.

[0094] Specifically, the orthographic projection P2 of the first rubber strip 14 and the second rubber strip 16 together on the vertical plane P1 of the rotation axis L can be understood as the orthographic projection P2 of the first rubber strip 14 and the second rubber strip 16 as a whole on the vertical plane P1 of the rotation axis L. When the cleaning assembly 100 rotates around the rotation axis L, there is always a rubber strip (the first rubber strip 14 or the first section 22) in contact with the ground at different angles in the rotation direction, reducing the missed scanning area and further improving the dust removal rate.

[0095] In one embodiment, the shaft body 12 can be provided with one first rubber strip 14 and one second rubber strip 16, the first rubber strip 14 can be spirally arranged around the circumferential direction C1 of the shaft body 12 by a first angle, and the second rubber strip 16 can be spirally arranged around the circumferential direction C1 of the shaft body 12 by a second angle. Wherein the first angle can be less than or equal to or greater than 360 degrees. The second angle can be less than or equal to or greater than 360 degrees. When the first angle and the second angle are both less than 360 degrees, the sum of the first angle and the second angle is equal to or greater than 360 degrees.

[0096] In one embodiment, the shaft body 12 can be provided with one first rubber strip 14 and a plurality of second rubber strips 16, the first rubber strip 14 can be located between two adjacent second rubber strips 16 along the circumferential direction C1 of the shaft body 12. The first rubber strip 14 can be spirally arranged around the circumferential direction C1 of the shaft body 12 by a first angle, and each second rubber strip 16 can be spirally arranged around the circumferential direction C1 of the shaft body 12 by a second angle. Wherein the first angle can be less than or equal to or greater than 360 degrees. The second angle can be less than or equal to or greater than 360 degrees. When the first angle and the second angle are both less than 360 degrees, the sum of the first angle and all the second angles is equal to or greater than 360 degrees. The plurality can mean two or more than two.

[0097] In one embodiment, the shaft body 12 can be provided with a plurality of first adhesive strips 14 and a second adhesive strip 16, and the second adhesive strip 16 can be located between two first adhesive strips 14 adjacent in the circumferential direction C1 of the shaft body 12. Each first adhesive strip 14 can be spirally arranged around the shaft body 12 at a first angle in the circumferential direction C1, and the second adhesive strip 16 can be spirally arranged around the shaft body 12 at a second angle in the circumferential direction C1. The first angle can be less than, equal to, or greater than 360 degrees. The second angle can be less than, equal to, or greater than 360 degrees. When the first angle and the second angle are both less than 360 degrees, the sum of all the first angles and the sum of all the second angles are equal to or greater than 360 degrees.

[0098] In one embodiment, the shaft body 12 can be provided with a plurality of first adhesive strips 14 and a plurality of second adhesive strips 16, and the first adhesive strips 14 and the second adhesive strips 16 can be alternately arranged in the circumferential direction C1 of the shaft body 12. Each first adhesive strip 14 can be spirally arranged around the shaft body 12 at a first angle in the circumferential direction C1, and each second adhesive strip 16 can be spirally arranged around the shaft body 12 at a second angle in the circumferential direction C1. The first angle can be less than, equal to, or greater than 360 degrees. The second angle can be less than, equal to, or greater than 360 degrees. When the first angle and the second angle are both less than 360 degrees, the sum of all the first angles and the sum of all the second angles are equal to or greater than 360 degrees. The plurality can refer to two or more than two.

[0099] It can be understood that the present application does not specifically limit the mutual arrangement of the first adhesive strips 14 and the second adhesive strips 16.

[0100] In some embodiments, the shaft body 12 is provided with two first adhesive strips 14 and two second adhesive strips 16, and the first adhesive strips 14 and the second adhesive strips 16 are alternately arranged in the circumferential direction C1 of the shaft body 12.

[0101] In this way, the dust removal rate can be further improved.

[0102] Specifically, the first adhesive strips 14 and the second adhesive strips 16 are alternately arranged in the circumferential direction C1 of the shaft body 12. On the one hand, the shaft body 12 is provided with four adhesive strips, and when the cleaning assembly 100 rotates, the frequency of the adhesive strips contacting the ground can be increased, thereby improving the cleaning effect. On the other hand, the first adhesive strips 14 and the second adhesive strips 16 are alternately arranged in the circumferential direction C1 of the shaft body 12, so that the first adhesive strip 14 located between two adjacent second adhesive strips 16 can sweep the elongated debris, dust, particulate matter, and the like that fall from the second section 24 of the second adhesive strip 16, thereby further improving the dust removal rate, reducing missed sweeping, and improving the cleaning effect.

[0103] In Figure 4In the embodiment, the four rubber strips are evenly spaced along the circumferential direction C1 of the shaft body 12, i.e. the interval angle between two adjacent rubber strips is 90 degrees. The rotation direction of the cleaning assembly 100 can be along the circumferential direction C1 of the shaft body 12. Each first rubber strip 14 is arranged in a 90-degree helix around the circumferential direction C1 of the shaft body 12. Each second rubber strip 16 is arranged in a 90-degree helix around the circumferential direction C1 of the shaft body 12.

[0104] In some embodiments, the cleaning assembly 100 comprises a plurality of bristle rows 38 arranged in a helix along the axial direction of the shaft body 12 on the circumferential side of the shaft body 12 and extending from the first end 18 to the second end 20, and at least one bristle row 38 is arranged between one first rubber strip 14 and one second rubber strip 16.

[0105] In this way, the dust removal rate can be improved.

[0106] Specifically, the bristle rows 38 are beneficial to the cleaning effect, and the rubber strips cannot be in contact with the ground due to the large friction with the ground. The bristle rows 38 can make up for this, and the bristle rows 38 can be in contact with the ground in a large area, and can clean the dust, particulate matter, etc. on the ground to improve the dust removal rate. The bristle rows 38 are arranged in a helix on the circumferential side of the shaft body 12 and extend from the first end 18 to the second end 20, and the debris cleaned by the bristle rows 38 can be pushed by the bristle rows 38 from the first end 18 to the second end 20 when the cleaning assembly 100 rotates, and can be sucked into the dust collection port when the debris reaches the vicinity of the dust collection port.

[0107] Optionally, the helix along which the bristle rows 38 are arranged is the same as the helix along which the first rubber strips 14 are arranged and the helix along which the second rubber strips 16 are arranged, which can make the space between the bristle rows 38 and the second rubber strips 16 more regular, and the space between the bristle rows 38 and the first rubber strips 14 more regular, which is beneficial to the collection of debris.

[0108] In Figure 4 , one bristle row 38 is arranged between one first rubber strip 14 and one second rubber strip 16. It can be understood that the number of bristle rows 38 arranged between one first rubber strip 14 and one second rubber strip 16 is not specifically limited by the present application.

[0109] In some embodiments, the cleaning assembly 100 comprises a first end cover 40, a support 42 and a hair blocking ring 44, the first end 18 is provided with a protrusion 46 along the axial direction of the shaft body 12, the protrusion 46 is sleeved with a bearing 48, the support 42 is installed on the first end 18 and connected to the outer ring of the bearing 48, the hair blocking ring 44 is arranged on the circumferential side of the shaft body 12 and separates the bearing 48 from the first rubber strip 14 and separates the bearing 48 from the second rubber strip 16, the support 42 is provided with a through hole 50, and the first end cover 40 is fixedly connected with the protrusion 46 by penetrating the through hole 50.

[0110] In this way, the impurities can be prevented from entering the bearing 48 and causing the bearing 48 to fail.

[0111] Specifically, the lint ring 44 is arranged on the circumferential side of the shaft body 12 and separates the bearing 48 from the first rubber strip 14 and separates the bearing 48 from the second rubber strip 16. When the cleaning assembly 100 rotates, the impurities that are hit or cleaned by the rubber strips and the bristles can accidentally fall into the bearing 48 and cause damage to the bearing 48. The lint ring 44 can shield these impurities and prevent them from falling into the bearing 48 and causing the bearing 48 to fail.

[0112] The first end cover 40 can be detachably connected to the output shaft of the motor of the cleaning robot. When the first end cover 40 is connected to the output shaft of the motor, the first end cover 40 and the output shaft of the motor are relatively non-rotatable. Figure 26 The first end cover 40 has a cover portion 52 and a connecting portion 54. The connecting portion 54 is arranged on one side of the cover portion 52, and the cover portion 52 is located in the through hole 50. Figure 3 The connecting portion 54 is non-cylindrical, and specifically in some embodiments, the connecting portion 54 is a square column. The output shaft can be provided with a connecting hole that matches the shape of the connecting portion 54. The connecting portion 54 is located in the connecting hole.

[0113] The protruding portion 46 can pass through the inner ring of the bearing 48 and be fixedly connected to the inner ring of the bearing 48. The cover portion 52 is fixedly connected to the protruding portion 46. Figure 3 In some embodiments, the first end cover 40 is fixedly connected to the protruding portion 46 by a screw.

[0114] In some embodiments, the circumferential side of the shaft body 12 is provided with a first clamping groove 56 and a second clamping groove 58. The first rubber strip 14 is connected to a first clamping strip 60, and the second rubber strip 16 is connected to a second clamping strip 62. The first clamping strip 60 is clamped in the first clamping groove 56 to enable the first rubber strip 14 to be mounted on the circumferential side of the shaft body 12, and the second clamping strip 62 is clamped in the second clamping groove 58 to enable the second rubber strip 16 to be mounted on the circumferential side of the shaft body 12.

[0115] In this way, the rubber strips can be mounted by using the cooperation of the clamping strips and the clamping grooves.

[0116] Specifically, the first clamping groove 56 and the second clamping groove 58 are both arranged in a spiral shape on the circumferential side of the shaft body 12 and extend from the first end 18 to the second end 20. The spiral shape of the first clamping groove 56 defines the spiral shape of the first rubber strip 14, and the spiral shape of the second clamping groove 58 defines the spiral shape of the second rubber strip 16. Alternatively, the spiral shape of the first clamping groove 56 and the spiral shape of the second clamping groove 58 can be designed according to the spiral shape of the first rubber strip 14 and the spiral shape of the second rubber strip 16.

[0117] The first adhesive strip 14 is connected with the first clamping strip 60 in a T-shaped structure, and the second adhesive strip 16 is connected with the second clamping strip 62 in a T-shaped structure. The shape of the clamping groove matches the shape of the T-shaped structure, so that the adhesive strip is installed on the shaft body 12 through the cooperation of the clamping strip and the clamping groove, and the adhesive strip can be prevented from falling off the shaft body 12 when the cleaning assembly 100 rotates.

[0118] Optionally, the first adhesive strip 14 and the first clamping strip 60 can be connected in an integrated structure, and the second adhesive strip 16 and the second clamping strip 62 can be connected in an integrated structure. In this way, the clamping groove can be prevented from gathering long and slender impurities such as hair, and further preventing entanglement.

[0119] In some embodiments, the first clamping groove 56 is formed with a first opening 64 at the end face of the second end 20, the second clamping groove 58 is formed with a second opening 66 at the end face of the second end 20, and the cleaning assembly 100 includes a second end cover 68. The second end cover 68 is installed on the second end 20 and covers the first opening 64 and the second opening 66.

[0120] In this way, the clamping strip can be prevented from detaching from the shaft body 12 through the opening of the clamping groove.

[0121] Specifically, in Figure 4 , the shaft body 12 is provided with four adhesive strips: two first adhesive strips 14 and two second adhesive strips 16, and the first adhesive strips 14 and the second adhesive strips 16 are arranged alternately along the circumferential direction C1 of the shaft body 12. Correspondingly, the shaft body 12 is provided with four clamping grooves: two first clamping grooves 56 and two second clamping grooves 58, and the first clamping grooves 56 and the second clamping grooves 58 are arranged alternately along the circumferential direction C1 of the shaft body 12. The four clamping grooves are respectively formed with four openings: two first openings 64 and two second openings 66 at the end face of the second end 20. The clamping groove does not form an opening at the first end 18, that is, one end of the clamping strip and the adhesive strip can abut against the side wall of one end of the clamping groove.

[0122] The second end 20 is provided with a mounting groove, and the mounting groove is in communication with the clamping groove. Please refer to Figure 1 and Figure 4 , the second end cover 68 includes a body 70 and four closure portions 72, and the four closure portions 72 are connected at intervals on the circumference of the body 70. The body 70 can be located in the mounting groove, and the four closure portions 72 respectively close the four openings, so that the other end of the clamping strip and the adhesive strip can abut against the closure portion 72, and then the clamping strip can be limited in the clamping groove, preventing the clamping strip from detaching from the shaft body 12 through the opening of the clamping groove, and further preventing the adhesive strip from falling off the shaft body 12.

[0123] When the adhesive strip is installed, the second end cover 68 can be separated from the second end 20, one end of the adhesive strip structure formed by the connection of the adhesive strip and the card strip can be pushed into the card slot from the opening and continuously pushed into the card slot in the direction of the first end 18 until the end of the adhesive strip structure abuts against the side wall of the card slot. Then, the second end cover 68 can be used to close the opening of the card slot, so that the second end cover 68 abuts against the other end of the adhesive strip structure. During the continuous pushing of the adhesive strip structure into the card slot, the adhesive strip structure is spirally arranged by the card slot, so that the adhesive strip structure is in a spiral shape.

[0124] A cleaning robot according to an embodiment of the present application includes the cleaning assembly 100 according to any one of the above embodiments.

[0125] In the above cleaning robot, the first distance D1 between the side edge of the first adhesive strip 14 away from the circumferential side surface of the shaft body 12 and the rotation axis L of the shaft body 12 is constant in the direction from the first end 18 to the second end 20, and the second distance D2 between the side edge of the first section 22 away from the circumferential side surface of the shaft body 12 and the rotation axis L of the shaft body 12 is constant in the direction from the first end 18 to the second end 20, so that the entire first adhesive strip 14 and the first section 22 can clean the hair, fur and the like on the ground when the cleaning assembly 100 works, and the entire first adhesive strip 14 and the first section 22 can be in contact with the ground, thereby improving the dust removal rate, and the second section 24 can make the hair, fur and the like easily enter the dust collecting port.

[0126] In some embodiments, the cleaning assembly 100 is configured to be arranged parallel to the ground.

[0127] In this way, the height direction space occupation of the cleaning assembly 100 to the internal space of the cleaning robot can be reduced.

[0128] Specifically, in the present application, the entire appearance of the cleaning assembly 100 is approximately cylindrical, and the cleaning assembly 100 is configured to be arranged parallel to the ground, so that the height direction space occupation of the cleaning assembly 100 to the internal space of the cleaning robot can be reduced, and other components can be arranged in the internal space of the cleaning robot. When the cleaning assembly 100 is arranged parallel to the ground, the rotation axis L of the shaft body 12 is parallel to the ground.

[0129] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0130] While the embodiments of the present application have been shown and described, it is to be understood that the embodiments can be varied, combined, modified, replaced, and altered, without departing from the principles and spirit of the present application, the scope of which is defined by the claims and their equivalents.

Claims

1. A cleaning assembly characterized by, include: A shaft body, the shaft body including a first end and a second end along the axial direction of the shaft body, the shaft body having a rotation axis; A first adhesive strip is spirally disposed on the circumferential side of the shaft body along the axial direction and extends from the first end to the second end. The distance between the side of the first adhesive strip away from the circumferential side of the shaft body and the axis of rotation is a first distance. The first distance remains unchanged from the first end to the second end. The second adhesive strip is spirally arranged on the circumferential side of the shaft body from the axial direction and extends from the first end to the second end. The second adhesive strip includes a first segment and a second segment connected to each other. The distance between the side of the first segment away from the circumferential side of the shaft body and the axis of rotation is the second distance. The second distance remains unchanged from the first end to the second end. The distance between the side of the second segment away from the circumferential side of the shaft body and the axis of rotation is the third distance. The third distance gradually decreases from the first end to the second end. The cleaning component is a mid-sweep component.

2. The cleaning assembly of claim 1, wherein, The hardness of the first adhesive strip is less than that of the second adhesive strip.

3. The cleaning assembly of claim 1, wherein, The thickness of the first adhesive strip gradually decreases radially away from the shaft.

4. The cleaning assembly of claim 1, wherein, The first adhesive strip includes a first part and a second part, which are radially away from the shaft. The first part connects the shaft and the second part, and the thickness of the second part is less than the thickness of the first part.

5. The cleaning assembly of claim 1, wherein, The first adhesive strip includes a third segment and a fourth segment connected to each other. The fourth segment includes a third part and a fourth part. In a direction radially away from the shaft, the third part connects the shaft and the fourth part. The thickness of the fourth part is less than the thickness of the third part.

6. The cleaning assembly of claim 5, wherein, The third segment is arranged corresponding to the first segment along the circumferential direction of the shaft, and the fourth segment is arranged corresponding to the second segment along the circumferential direction of the shaft. The shape of the third segment is the same as the shape of the second segment.

7. The cleaning assembly of claim 1, wherein, The outer boundary line of the orthographic projection of the first adhesive strip and the second adhesive strip together on the vertical plane of the rotation axis is 360 degrees around the rotation axis.

8. The cleaning assembly of claim 1, wherein, The shaft is provided with two first adhesive strips and two second adhesive strips, which are alternately arranged along the circumferential direction of the shaft.

9. The cleaning assembly of claim 8, wherein, The cleaning component includes a bristle array, which is spirally arranged along the axial direction of the shaft on the circumferential side of the shaft and extends from the first end to the second end. At least one bristle array is provided between an adjacent first rubber strip and a second rubber strip.

10. The cleaning assembly of claim 1, wherein, The cleaning assembly comprises a first end cover, a support and a lint ring, the first end is provided with a convex part along the axial direction of the shaft body, a bearing is sleeved on the convex part, the support is installed on the first end and connected with the outer ring of the bearing, the lint ring is arranged on the circumferential side surface of the shaft body and separates the bearing from the first rubber strip and separates the bearing from the second rubber strip, the support is provided with a through hole, and the first end cover is fixedly connected with the convex part through the through hole.

11. The cleaning assembly of claim 1, wherein, The circumferential side surface of the shaft body is provided with a first clamping groove and a second clamping groove, the first rubber strip is connected with a first clamping strip, the second rubber strip is connected with a second clamping strip, the first clamping strip is clamped in the first clamping groove to enable the first rubber strip to be installed on the circumferential side surface of the shaft body, and the second clamping strip is clamped in the second clamping groove to enable the second rubber strip to be installed on the circumferential side surface of the shaft body.

12. The cleaning assembly of claim 11, wherein, The first clamping groove is formed with a first opening on the end face of the second end, the second clamping groove is formed with a second opening on the end face of the second end, and the cleaning assembly comprises a second end cover, the second end cover is installed on the second end and closes the first opening and the second opening.

13. The cleaning assembly of any one of claims 1-12, wherein, The shaft body is a hollow structure.

14. A cleaning robot, characterized in that, The cleaning assembly comprises the cleaning assembly according to any one of claims 1-13.

15. The cleaning robot according to claim 14, wherein, The cleaning assembly is configured to be arranged parallel to the ground.

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