Cleaning device and cleaning robot

Abstract

The utility model discloses a cleaning device and a cleaning robot. The cleaning device is used for the cleaning robot. The cleaning device comprises a mounting base, a driving assembly and a cleaning assembly. The driving assembly is installed on the installation base, and the cleaning assembly is movably installed on the installation base. The driving assembly is connected with the cleaning assembly, the cleaning assembly comprises a cleaning part, the driving assembly is configured to drive the cleaning assembly to move between a first position and a second position, and under the condition that the cleaning assembly is located at the first position, the cleaning part makes contact with the ground, and under the condition that the cleaning assembly is located at the second position, the cleaning part makes contact with the ground. And under the condition that the cleaning assembly is located at the second position, the cleaning piece is separated from the ground. According to the cleaning device, when the cleaning piece is located at the first position, the cleaning piece can make contact with the ground to clean the ground, and when the cleaning piece is located at the second position, the cleaning piece is separated from the ground, so that the cleaning piece can avoid liquid dirt such as sewage, and the dirt area is prevented from being increased.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, and particularly relates to a cleaning device and a cleaning robot. Background Art

[0002] With the development of technology, the functions of cleaning robots are becoming more and more powerful, and the types of dirt that can be cleaned are increasing. However, when the side brush of a cleaning robot cleans liquid dirt such as sewage, the sewage may be spread and smeared when the side brush sweeps over the sewage due to the high viscosity of the sewage, thus increasing the area of the sewage and the cleaning difficulty. Summary of the Utility Model

[0003] Embodiments of the utility model provide a cleaning device and a cleaning robot to solve at least one of the above-mentioned technical problems.

[0004] A cleaning device according to an embodiment of the utility model is for a cleaning robot. The cleaning device includes a mounting seat, a driving component, and a cleaning component.

[0005] The driving component is mounted on the mounting seat, and the cleaning component is movably mounted on the mounting seat.

[0006] The driving component is connected to the cleaning component. The cleaning component includes a cleaning member. The driving component is configured to drive the cleaning component to move between a first position and a second position. When the cleaning component is in the first position, the cleaning member contacts the ground. When the cleaning component is in the second position, the cleaning member is separated from the ground.

[0007] In the above cleaning device, when the cleaning member is in the first position, it can contact the ground to clean the ground. When the cleaning member is in the second position, the cleaning member is separated from the ground, so that the cleaning member can avoid liquid dirt such as sewage and prevent the dirt area from increasing.

[0008] In some embodiments, the driving component is configured to drive the cleaning component to rotate in a first direction to make the cleaning component in the first position, and drive the cleaning component to rotate in a second direction to make the cleaning component in the second position.

[0009] In some embodiments, the cleaning component further includes a lifting component. The cleaning member is movably mounted on the lifting component. The lifting component is movably mounted on the mounting seat. The lifting component is configured to rotate together with the cleaning member when the cleaning member rotates in the first direction, and stop rotating when the cleaning member rotates in the second direction, so that the cleaning member moves away from the ground relative to the lifting component to space the cleaning member from the ground.

[0010] In some embodiments, the lifting assembly includes a fixed cover and a floating cover. The cleaning member is movably installed between the fixed cover and the floating cover. The fixed cover is provided with a lifting portion, and the floating cover is provided with a recessed portion. When the floating cover is installed on the fixed cover, the lifting portion and the recessed portion define a track for the movement of the cleaning member. When the cleaning member is driven by the driving assembly to rotate in the second direction, the cleaning member moves along the track so that the cleaning member is spaced from the ground.

[0011] In some embodiments, the lifting assembly includes a first transmission member. The first transmission member includes a transmission shaft and a one-way bearing. One end of the transmission shaft is fixedly connected to the fixed cover, and the other end of the transmission shaft is fixedly connected to the one-way bearing. The one-way bearing is configured to rotate in the first direction and not rotate in the second direction.

[0012] In some embodiments, the mounting seat is provided with a receiving cavity. The floating cover, the cleaning member, and the fixed cover are sequentially arranged in the receiving cavity. The bottom surface of the receiving cavity has a first limiting portion, and the top surface of the floating cover has a second limiting portion. When the cleaning member moves along the track, the cleaning member jacks up the floating cover, and the first limiting portion and the second limiting portion are in contact with each other. When the first limiting portion and the second limiting portion are in contact with each other and the cleaning member rotates in the first direction, the floating cover and the fixed cover do not rotate.

[0013] In some embodiments, the cleaning member includes a bracket and a cleaning brush. The cleaning brush is installed on the bracket. The bracket is arranged between the fixed cover and the floating cover. The thickness of the bracket is greater than the width of the track defined by the lifting portion and the recessed portion.

[0014] In some embodiments, the fixed cover includes a claw, and the floating cover includes a slot. The claw is clamped in the slot to limit the movement between the floating cover and the fixed cover along the rotation direction of the cleaning member.

[0015] In some embodiments, the lifting assembly includes an elastic member. The floating cover is provided with a receiving groove. The elastic member is received in the receiving groove. A partial edge of the claw is clamped on the elastic member so that the floating cover can move relative to the fixed cover in a direction close to or away from the ground.

[0016] In some embodiments, the driving assembly includes a driving member and a second transmission member. The driving member is in transmission connection with the second transmission member, and the second transmission member is in transmission connection with the cleaning member.

[0017] In some embodiments, the mounting base includes an upper shell and a lower cover. The upper shell is provided with a mounting groove, and the driving member is mounted in the mounting groove. A receiving space is formed between the upper shell and the lower cover, and the second transmission member is received in the receiving space.

[0018] In some embodiments, the cleaning assembly further includes a lifting assembly. The lifting assembly includes a fixed cover, a floating cover, and a second transmission member. The lower cover is provided with a receiving cavity. The floating cover, the cleaning member, and the fixed cover are sequentially arranged in the receiving cavity. The cleaning member is movably mounted between the floating cover and the fixed cover. The floating cover is provided with a through hole. The driving assembly includes a third transmission member. The second transmission member is fixedly connected to the third transmission member. The third transmission member passes through the through hole and is fixedly connected to the cleaning member.

[0019] In some embodiments, the inner wall surface of the through hole and the outer peripheral surface of the third transmission member are correspondingly provided with threads, so that the floating cover can move relative to the fixed cover in a direction close to or away from the ground.

[0020] A cleaning robot according to an embodiment of the present invention includes the cleaning device according to any one of the above embodiments.

[0021] In the above cleaning robot, when the cleaning member is in the first position, it can contact the ground to clean the ground. When the cleaning member is in the second position, the cleaning member is separated from the ground, so that the cleaning member can avoid liquid dirt such as sewage and prevent the dirt area from increasing.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 is a schematic structural view of the cleaning device according to an embodiment of the present invention;

[0025] Figure 2 is an exploded schematic view of the cleaning device according to an embodiment of the present invention;

[0026] Figure 3 is a schematic cross-sectional structural view of the cleaning device according to an embodiment of the present invention;

[0027] Figure 4 is a schematic structural view of the cleaning assembly according to an embodiment of the present invention;

[0028] Figure 5 is an exploded view of the cleaning assembly according to an embodiment of the present utility model;

[0029] Figure 6 is a structural view of the fixed cover according to an embodiment of the present utility model;

[0030] Figure 7 is a partial exploded view of the cleaning device according to an embodiment of the present utility model;

[0031] Figure 8 is a partial structural view of the cleaning device according to an embodiment of the present utility model;

[0032] Figure 9 is a structural view of the third transmission member according to an embodiment of the present utility model;

[0033] Figure 10 is a structural view of the floating cover according to an embodiment of the present utility model;

[0034] Figure 11 is another structural view of the floating cover according to an embodiment of the present utility model.

[0035] Main element symbol description:

[0036] Mounting seat 10, driving assembly 12, cleaning assembly 14, lifting assembly 16, fixed cover 18, floating cover 20, cleaning member 21, lifting portion 22, recessed portion 24, track 26, first transmission member 28, transmission shaft 30, one-way bearing 34, snap ring 35, accommodating cavity 36, first limiting portion 38, second limiting portion 40, bracket 42, cleaning brush 46, claw 48, card slot 50, accommodating groove 51, elastic member 52, driving member 54, second transmission member 56, first-stage gear 58, second-stage gear 60, third-stage gear 62, fourth-stage gear 64, gear shaft 65, upper shell 66, lower cover 68, mounting groove 70, accommodating space 72, closing cover 73, through hole 74, third transmission member 76, copper sleeve 78, fastener 80, cleaning device 100. Detailed implementation manners

[0037] The following details the implementation manners of the present utility model. The examples of the implementation manners are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The implementation manners described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0038] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0039] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection. It may be a mechanical connection or an electrical connection. It may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model may be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0041] The present disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, the components and settings of specific examples are described herein. Of course, they are only examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0042] With the development of technology, cleaning robots are becoming more and more powerful, and the types of dirt that can be cleaned are increasing. In related technologies, cleaning robots are equipped with side brushes for cleaning the ground.

[0043] However, when the side brush is cleaning liquid dirt such as sewage, due to the viscosity of the sewage, the sewage may be spread or smeared when the side brush sweeps over the sewage, thus increasing the area of the sewage and the cleaning difficulty.

[0044] If encountering such sewage, if the side brush can be lifted off the ground and the mopping cloth and other components of the sweeping robot are used for cleaning, the cleaning efficiency and the cleanliness of the ground will be improved.

[0045] Please refer to Figures 1 to 3 A cleaning device 100 according to an embodiment of the present invention is used for a cleaning robot. The cleaning device 100 includes a mounting base 10, a driving component 12, and a cleaning component 14.

[0046] The driving component 12 is mounted on the mounting base 10, and the cleaning component 14 is movably mounted on the mounting base 10.

[0047] The driving component 12 is connected to the cleaning component 14. The cleaning component 14 includes a cleaning member 21. The driving component 12 is configured to drive the cleaning component 14 to move between a first position and a second position. When the cleaning component 14 is in the first position, the cleaning member 21 is in contact with the ground. When the cleaning component 14 is in the second position, the cleaning member 21 is separated from the ground.

[0048] In the above-mentioned cleaning device 100, when the cleaning member 21 is in the first position, it can be in contact with the ground to clean the ground. When the cleaning member 21 is in the second position, the cleaning member 21 is separated from the ground, so that the cleaning member 21 can avoid liquid dirt such as sewage and prevent the dirt area from increasing.

[0049] Specifically, the cleaning device 100 is used to be mounted on the bottom of the body of the cleaning robot, and the ground is cleaned by driving the cleaning member 21 to rotate. The driving component 12 and the cleaning component 14 are mounted on the mounting base 10. The driving component 12 is used to drive the cleaning component 14 to move between a first position and a second position. When the cleaning component 14 is in the first position, the cleaning member 21 is in contact with the ground and can clean the ground. When the cleaning component 14 is in the second position, the cleaning member 21 is separated from the ground, and can avoid liquid dirt such as sewage on the ground.

[0050] In some embodiments, the driving component 12 is configured to drive the cleaning component 14 to rotate in a first direction so that the cleaning component 14 is in the first position, and drive the cleaning component 14 to rotate in a second direction so that the cleaning component 14 is in the second position.

[0051] In this way, the driving component 12 drives the cleaning component 14 to rotate to achieve the contact or separation of the cleaning member 21 from the bottom surface.

[0052] Specifically, the first direction and the second direction are two opposite directions in which the driving component 12 operates. For example, the driving component 12 includes a motor, the first direction is the forward rotation direction of the motor, and the second direction is the reverse rotation direction of the motor. Or, the first direction is the reverse rotation direction of the motor, and the second direction is the forward rotation direction of the motor. As Figure 1 shown, the first direction is the direction shown by R1, and the second direction is the direction shown by R2.

[0053] The driving component 12 drives the cleaning component 14 to rotate in the first direction so that the cleaning component 14 is located at the first position, and drives the cleaning component 14 to rotate in the second direction so that the cleaning component 14 is located at the second position. Thus, when the cleaning component 14 is located at the first position, the cleaning member 21 contacts the ground, and the ground can be cleaned. When the cleaning component 14 is located at the second position, the cleaning member 21 is separated from the ground, and liquid dirt such as sewage on the ground can be avoided.

[0054] In some embodiments, the cleaning component 14 further includes a lifting component 16. The cleaning member 21 is movably mounted on the lifting component 16, and the lifting component 16 is movably mounted on the mounting base 10. The lifting component 16 is configured to rotate together with the lifting component 16 and the cleaning member 21 when the cleaning member 21 rotates in the first direction, and the lifting component 16 stops rotating when the cleaning member 21 rotates in the second direction, so that the cleaning member 21 moves away from the ground relative to the lifting component 16 to space the cleaning member 21 from the ground.

[0055] In this way, through the action of the lifting component 16, the cleaning member 21 can move away from the ground relative to the lifting component 16 when rotating in the second direction.

[0056] Specifically, the driving component 12 drives the cleaning component 14 to move between the first position and the second position to achieve the contact or separation of the cleaning member 21 from the ground. When the cleaning member 21 rotates in the first direction, the lifting component 16 can rotate together with the cleaning member 21. At this time, the cleaning member 21 contacts the ground, and the ground can be cleaned. When the cleaning member 21 rotates in the second direction, the lifting component 16 stops rotating, so that the cleaning member 21 moves away from the ground relative to the lifting component 16, thereby spacing the cleaning member 21 from the ground, and thus the sewage can be prevented from being spread when the cleaning member 21 sweeps over the sewage.

[0057] Please refer to Figure 1 and Figure 3, in some embodiments, the lifting assembly 16 includes a fixed cover 18 and a floating cover 20. The cleaning member 21 is movably mounted between the fixed cover 18 and the floating cover 20. The fixed cover 18 is provided with a lifting portion 22, and the floating cover 20 is provided with a recessed portion 24. When the floating cover 20 is mounted on the fixed cover 18, the lifting portion 22 and the recessed portion 24 define a track 26 for the movement of the cleaning member 21. When the cleaning member 21 is driven by the driving assembly 12 to rotate in the second direction, the cleaning member 21 moves along the track 26 so that the cleaning member 21 is spaced from the ground.

[0058] In this way, when the cleaning member 21 rotates in the second direction, it can move upward along the track 26, so as to realize the spacing between the cleaning member 21 and the ground.

[0059] Specifically, as Figure 1 , Figure 6 and Figure 11 shown, the lifting assembly 16 includes a fixed cover 18 and a floating cover 20. The cleaning member 21 is disposed between the fixed cover 18 and the floating cover 20. The fixed cover 18 is provided with a lifting portion 22, and the floating cover 20 is provided with a recessed portion 24. The lifting portion 22 and the recessed portion 24 define a track 26 for the movement of the cleaning member 21. When the driving assembly 12 drives the cleaning assembly 14 to rotate in the second direction, the fixed cover 18 and the floating cover 20 are fixed and do not rotate, so that a relative movement occurs between the cleaning member 21 and the fixed cover 18 and the floating cover 20, and the cleaning member 21 moves along the track 26 between the fixed cover 18 and the floating cover 20, so that the cleaning member 21 is spaced from the ground.

[0060] When the cleaning member 21 moves upward along the track 26 between the fixed cover 18 and the floating cover 20 in the second direction, the lowest position of the cleaning member 21 can be raised by 4 mm - 10 mm relative to the ground. For example, when the cleaning member 21 is in the second position, the distance from the lowest position of the cleaning member 21 to the ground can be 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm or 10 mm, or any value within the range [4 mm, 10 mm]. In this way, the cleaning surface can be completely separated from the ground.

[0061] Please refer to Figure 2 and Figure 3 , in some embodiments, the lifting assembly 16 includes a first transmission member 28. The first transmission member 28 includes a transmission shaft 30 and a one-way bearing 34. One end of the transmission shaft 30 is fixedly connected to the fixed cover 18, and the other end of the transmission shaft 30 is fixedly connected to the one-way bearing 34. The one-way bearing 34 is configured to rotate in the first direction and not rotate in the second direction.

[0062] In this way, the lifting assembly 16 can be rotated in the first direction and not rotated in the second direction through the one-way bearing 34.

[0063] Specifically, the main function of the one-way bearing 34 is to be able to rotate freely in one direction and lock or have a large resistance in the other direction.

[0064] The driving assembly 12 is in transmission connection with the cleaning member 21, and drives the overall movement of the cleaning assembly 14 by driving the cleaning member 21. The driving assembly 12 is in transmission connection with the cleaning member 21. The cleaning member 21 is arranged between the fixed cover 18 and the floating cover 20, and the fixed cover 18 and the floating cover 20 are fixedly connected to the first transmission member 28.

[0065] When the cleaning member 21 moves in the first direction, the fixed cover 18 and the floating cover 20 move together with the cleaning member 21. When the cleaning member 21 moves in the second direction, due to the action of the one-way bearing 34, the fixed cover 18 and the floating cover 20 do not rotate. In this way, the cleaning member 21 can rise along the track 26 between the fixed cover 18 and the floating cover 20, so as to disengage from the ground.

[0066] Optionally, the first transmission member 28 further includes a snap ring 35, and the snap ring 35 is clamped on the transmission shaft 30, which can limit the displacement of the transmission shaft 30 in the axial direction.

[0067] Optionally, the first transmission member 28 may further include some gear structures with special designs, such as a ratchet mechanism. The ratchet mechanism includes a fixed ratchet and a rotating member with a pawl. The pawl can push the ratchet to rotate in one direction and is blocked by the ratchet in the other direction, so as to achieve the effect of one-way transmission.

[0068] Optionally, the first transmission member 28 may further include an electromagnetic clutch, and the engagement and separation of the clutch are controlled by electromagnetic force, so as to achieve the effect of one-way transmission.

[0069] Please refer to Figure 2 and Figure 3 , in some embodiments, the mounting seat 10 is provided with a receiving cavity 36, the floating cover 20, the cleaning member 21 and the fixed cover 18 are sequentially arranged in the receiving cavity 36. The bottom surface of the receiving cavity 36 has a first limiting portion 38, and the top surface of the floating cover 20 has a second limiting portion 40. When the cleaning member 21 moves along the track 26, the cleaning member 21 jacks up the floating cover 20, and the first limiting portion 38 contacts the second limiting portion 40. When the first limiting portion 38 contacts the second limiting portion 40 and the cleaning member 21 rotates in the first direction, the floating cover 20 and the fixed cover 18 do not rotate.

[0070] In this way, when the cleaning member 21 rotates in the first direction, the floating cover 20 and the fixed cover 18 can be fixed and not rotate through the first limiting portion 38 and the second limiting portion 40, so that the cleaning member 21 moves along the track 26 until the cleaning assembly 14 is in the first position.

[0071] Specifically, a receiving cavity 36 is provided on one side of the mounting base 10 facing the cleaning member 21. The floating cover 20, the cleaning member 21, and the fixed cover 18 are sequentially arranged in the receiving cavity 36, and the floating cover 20 is closer to the bottom surface of the receiving cavity 36.

[0072] The bottom surface of the receiving cavity 36 has a first limiting portion 38, and the top surface of the floating cover 20 has a second limiting portion 40. The cleaning member 21 moves upward along the track 26, pushing the floating cover 20 upward until the first limiting portion 38 contacts the second limiting portion 40.

[0073] When the first limiting portion 38 contacts the second limiting portion 40, if the driving assembly 12 drives the cleaning member 21 to rotate in the first direction, at this time, since the first limiting portion 38 contacts the second limiting portion 40, the fixed cover 18 and the floating cover 20 still do not rotate, so that the cleaning member 21 can descend along the track 26.

[0074] While the cleaning member 21 descends along the track 26, since the floating cover 20 loses the upward acting force of the cleaning member 21 and drops, the first limiting portion 38 is separated from the second limiting portion 40. At this time, the cleaning assembly 14 returns to the first position, the cleaning member 21 contacts the ground, and the fixed cover 18 and the floating cover 20 can continue to rotate together with the cleaning member 21.

[0075] Please refer to Figure 1 , in some embodiments, the cleaning member 21 includes a bracket 42 and a cleaning brush 46. The cleaning brush 46 is mounted on the bracket 42. The bracket 42 is arranged between the fixed cover 18 and the floating cover 20, and the thickness h1 of the bracket 42 is greater than the width h2 of the track 26 defined by the lifting portion 22 and the recessed portion 24.

[0076] In this way, when the cleaning member 21 rises along the track 26, the floating cover 20 can be pushed up so that the first limiting portion 38 contacts the second limiting portion 40.

[0077] Specifically, the cleaning member 21 includes a bracket 42 and a cleaning brush 46. The cleaning brush 46 is mounted on the bracket 42. The bracket 42 is arranged between the fixed cover 18 and the floating cover 20, and the thickness h1 of the bracket 42 is greater than the distance h2 between the lifting portion 22 and the recessed portion 24. In this way, when the cleaning member 21 rises along the track 26, the floating cover 20 can be pushed up.

[0078] Please refer to Figure 4 and Figure 5 , in some embodiments, the fixed cover 18 includes a claw 48, and the floating cover 20 includes a slot 50. The claw 48 is clamped in the slot 50 to limit the movement between the floating cover 20 and the fixed cover 18 along the rotation direction of the cleaning member 21.

[0079] In this way, through the mutual cooperation of the clamping jaw 48 and the clamping groove 50, the movement between the floating cover 20 and the fixed cover 18 along the rotation direction of the cleaning member 21 can be limited.

[0080] Specifically, the floating cover 20 is installed on the fixed cover 18. The floating cover 20 can move in a direction close to or away from the ground. At the same time, there should be no relative rotation between the floating cover 20 and the fixed cover 18. The fixed cover 18 includes a clamping jaw 48, and the floating cover 20 includes a clamping groove 50. The clamping jaw 48 is clamped in the clamping groove 50, and the side surface of the clamping groove 50 abuts against the side surface of the clamping jaw 48, so that there is no relative rotation between the fixed cover 18 and the floating cover 20.

[0081] In some embodiments, the lifting assembly 16 includes an elastic member 52. The floating cover 20 is provided with a receiving groove 51. The elastic member 52 is received in the receiving groove 51. Part of the edge of the clamping jaw 48 is clamped on the elastic member 52, so that the floating cover 20 can move relative to the fixed cover 18 in a direction close to or away from the ground.

[0082] In this way, part of the edge of the clamping jaw 48 is clamped on the elastic member 52, so that the floating cover 20 can move relative to the fixed cover 18 in a direction close to or away from the ground.

[0083] Specifically, the lifting assembly 16 includes an elastic member 52. The floating cover 20 is provided with a receiving groove 51. The elastic member 52 is received in the receiving groove 51. When the cleaning assembly 14 is in the first position, the elastic member 52 has a downward pressure on the floating cover 20. In this way, when the cleaning member 21 cleans the ground, there is a downward pressure, so that the cleaning member 21 can contact and clean the ground more thoroughly. During the process of the cleaning assembly 14 switching from the second position to the first position, the cleaning member 21 moves downward along the track 26 between the fixed cover 18 and the floating cover 20. The elastic member 52 has a downward pressure on the floating cover 20, which can separate the first limiting portion 38 from the second limiting portion 40. At this time, the cleaning assembly 14 returns to the first position, the cleaning member 21 contacts the ground, and the fixed cover 18 and the floating cover 20 can continue to rotate together with the cleaning member 21.

[0084] In some embodiments, the driving assembly 12 includes a driving member 54 and a second transmission member 56. The driving member 54 is drivingly connected to the second transmission member 56, and the second transmission member 56 is drivingly connected to the cleaning member 21.

[0085] In this way, the driving assembly 12 can drive the cleaning member 21 to rotate.

[0086] Specifically, the driving member 54 provides power, and the second transmission member 56 connects the driving member 54 and the cleaning member 21 for transmitting the power provided by the driving member 54 to the cleaning member 21. The cleaning member 21 is mounted on the lifting assembly 16 and can drive the lifting assembly 16 to move together. Thus, it can be realized that the driving assembly 12 drives the cleaning assembly 14 to move between the first position and the second position.

[0087] In one embodiment, as Figure 2 and Figure 3 shown, the driving member 54 includes a motor, and the second transmission member 56 includes a gear transmission member. The gear transmission member includes a first-stage gear 58, a second-stage gear 60, a third-stage gear 62, and a fourth-stage gear 64 that are sequentially engaged. The first gear is connected to the output shaft of the motor, and the fourth-stage gear 64 is connected to the cleaning member 21. Thus, it can be realized that the driving member 54 drives the cleaning member 21 to rotate. The second transmission member 56 further includes a gear shaft 65, and the gear shaft 65 is used for mounting and positioning the gears.

[0088] Optionally, the driving member 54 includes an electric driving member 54, a hydraulic driving member 54, and a pneumatic driving member 54.

[0089] In some embodiments, the mounting seat 10 includes an upper shell 66 and a lower cover 68. The upper shell 66 is provided with a mounting groove 70, and the driving member 54 is mounted in the mounting groove 70. A receiving space 72 is formed between the upper shell 66 and the lower cover 68, and the second transmission member 56 is received in the receiving space 72.

[0090] In this way, a protective effect can be achieved on the second transmission member 56.

[0091] Specifically, the second transmission member 56 connects the driving member 54 and the cleaning member 21 for transmitting the power provided by the driving member 54 to the cleaning member 21. A receiving space 72 is formed between the upper shell 66 and the lower cover 68 of the mounting seat 10, and the second transmission member 56 is received in the receiving space 72. The mounting seat 10 further includes a closing cover 73, and the closing cover 73 is used for closing the top of the receiving space 72. The mounting seat 10 provides a closed environment for the second transmission member 56, effectively preventing external factors such as dust, sediment, and oil from directly contacting the second transmission member 56, which can reduce the wear and corrosion of the second transmission member 56, thereby extending the service life of the second transmission member 56.

[0092] In some embodiments, the cleaning assembly 14 further includes a lifting assembly 16. The lifting assembly 16 includes a fixed cover 18, a floating cover 20, and a second transmission member 56. The lower cover 68 is provided with a receiving cavity 36. The floating cover 20, the cleaning member 21, and the fixed cover 18 are sequentially arranged in the receiving cavity 36. The cleaning member 21 is movably installed between the floating cover 20 and the fixed cover 18. The floating cover 20 is provided with a through hole 74. The driving assembly 12 includes a third transmission member 76. The second transmission member 56 is fixedly connected to the third transmission member 76. The third transmission member 76 passes through the through hole 74 and is fixedly connected to the cleaning member 21.

[0093] In this way, the structure of the cleaning device 100 is compact, and the overall thickness of the side brush module can be reduced.

[0094] Specifically, the mounting seat 10 includes an upper shell 66 and a lower cover 68. The upper shell 66 is provided with a mounting groove 70 for mounting the driving member 54. A receiving space 72 is formed between the upper shell 66 and the lower cover 68 for receiving the second transmission member 56. The lower cover 68 is provided with a receiving cavity 36 for receiving the floating cover 20, the cleaning member 21, and the fixed cover 18. The output shaft of the second transmission member 56 extends out of the receiving space 72, passes through the floating cover 20, and is fixedly connected to the third transmission member 76. A copper sleeve 78 can be provided between the floating cover 20 and the second transmission member 56, or a bearing can be provided between the floating cover 20 and the second transmission member 56, so as to reduce the friction between the floating cover 20 and the second transmission member 56 and play a lubricating role.

[0095] The third transmission member 76 is fixedly connected to the cleaning member 21. The fixed cover 18 is mounted to the floating cover 20 from below the cleaning member 21. The first transmission member 28 is located in the receiving space 72 and extends out of the receiving space 72. The fixed cover 18 is fixedly connected to the first transmission member 28 through a fastener 80.

[0096] It can be understood that in the same space, the outer layer of the cleaning assembly 14 is a transmission system driven by the driving member 54, the second transmission member 56, and the cleaning member 21, and the inner layer is a transmission system from the cleaning member 21, the fixed cover 18, the floating cover 20 to the first transmission member 28.

[0097] When the driving member 54 rotates in the first direction, the driving member 54 drives the second transmission member 56 to drive the cleaning member 21 to rotate in the first direction; when the driving member 54 rotates in the second direction, the driving member 54 drives the second transmission member 56 to drive the cleaning member 21 to rotate in the second direction. The first transmission member 28 is fixed and does not rotate, so that the fixed cover 18 and the floating cover 20 are fixed and do not rotate, and the cleaning member 21 moves upward along the track 26 between the fixed cover 18 and the floating cover 20 in the second direction. In summary, the structure of the cleaning device 100 is compact, and the overall thickness of the side brush module can be reduced.

[0098] In some embodiments, threads are correspondingly provided on the inner wall surface of the through hole 74 and the outer circumference surface of the third transmission member 76 so that the floating cover 20 can move relative to the fixed cover 18 in a direction close to or away from the ground.

[0099] In this way, it can be achieved that the floating cover 20 can move relative to the fixed cover 18 in a direction close to or away from the ground.

[0100] Specifically, when the driving member 54 drives the cleaning member 21 to rotate along the second direction, the cleaning member 21 pushes the floating cover 20 upward, and the thread between the inner wall surface of the through hole 74 and the outer peripheral surface of the third transmission member 76 is tightened. When the driving member 54 drives the cleaning member 21 to change direction and rotate along the first direction, the floating cover 20 needs to overcome the force of the tightening thread and has a certain period of stopping, so that the cleaning member 21 falls and resumes contact with the ground.

[0101] It should be noted that when the driving member 54 drives the cleaning member 21 to rotate along the second direction, since the first transmission member 28 is fixed and does not rotate, the cleaning member 21 is eventually moved upward and is in a stopped state. Therefore, when the driving member 54 drives the cleaning member 21 to rotate along the second direction, the working duration of the driving member 54 can be set, or the working current of the driving member 54 can be detected, and the driving member 54 can be stopped when the working current exceeds a preset value, thereby avoiding damage to the driving member 54.

[0102] In summary, when the driving member 54 rotates in the first direction, the driving member 54 drives the second transmission member 56 to drive the cleaning member 21 to rotate in the first direction; when the driving member 54 rotates in the second direction, the driving member 54 drives the second transmission member 56 to drive the cleaning member 21 to rotate in the second direction, and the first transmission member 28 is fixed and does not rotate, so that the fixed cover 18 and the floating cover 20 are fixed and do not rotate, and the cleaning member 21 moves upward along the track 26 between the fixed cover 18 and the floating cover 20 in the second direction. Therefore, the cleaning device 100 can achieve that the cleaning member 21 contacts the ground for cleaning when rotating in the first direction, and moves upward and leaves the ground when rotating in the second direction, so as to avoid liquid stains.

[0103] A cleaning robot according to an embodiment of the present invention comprises the cleaning device 100 according to any one of the above embodiments.

[0104] In the above-mentioned cleaning robot, when the cleaning member 21 is in the first position, it can contact the ground to clean the ground. When the cleaning member 21 is in the second position, the cleaning member 21 is separated from the ground, so that the cleaning member 21 can avoid liquid dirt such as sewage to avoid increasing the dirt area.

[0105] Specifically, the cleaning device 100 is used to be installed at the bottom of the body of the cleaning robot, and cleans the ground by driving the cleaning member 21 to rotate.

[0106] The cleaning device 100 can be installed at the bottom of the body of the cleaning robot, or the cleaning device 100 can be installed at the bottom of the body of the cleaning robot through other devices.

[0107] For example, the cleaning device 100 is installed on a swinging device, and the swinging device is installed at the bottom of the body of the cleaning robot, so that the cleaning member 21 of the cleaning device 100 can have a swinging motion when rotating, so that the cleaning device 100 can better clean the chassis.

[0108] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" 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 invention. In this specification, the schematic representations of the above terms do not necessarily refer to 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.

[0109] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A cleaning device for a cleaning robot, characterized in that: The cleaning device comprises a mounting seat, a driving assembly and a cleaning assembly; The driving assembly is mounted on the mounting seat, and the cleaning assembly is movably mounted on the mounting seat; The driving assembly is connected to the cleaning assembly, and the cleaning assembly includes a cleaning member. The driving assembly is configured to drive the cleaning assembly to move between a first position and a second position. When the cleaning assembly is in the first position, the cleaning member is in contact with the ground. When the cleaning assembly is in the second position, the cleaning member is disengaged from the ground.

2. The cleaning device according to claim 1, characterized in that The driving assembly is configured to drive the cleaning assembly to rotate along a first direction so that the cleaning assembly is located at the first position, and to drive the cleaning assembly to rotate along a second direction so that the cleaning assembly is located at the second position.

3. The cleaning device according to claim 2, characterized in that: The cleaning component also includes a lifting component, the cleaning member is movably mounted on the lifting component, the lifting component is movably mounted on the mounting seat, and the lifting component is configured such that when the cleaning member rotates along the first direction, the lifting component and the cleaning member rotate together, and when the cleaning member rotates along the second direction, the lifting component stops rotating, so that the cleaning member moves relative to the lifting component in a direction away from the ground so that the cleaning member is spaced apart from the ground.

4. The cleaning device according to claim 3, characterized in that: The lifting assembly includes a fixed cover and a floating cover, the cleaning member is movably installed between the fixed cover and the floating cover, the fixed cover is provided with a lifting portion, and the floating cover is provided with a recessed portion. When the floating cover is installed on the fixed cover, the lifting portion and the recessed portion define a track for movement of the cleaning member. When the cleaning member is driven by the driving assembly to rotate in the second direction, the cleaning member moves along the track so that the cleaning member is separated from the ground.

5. The cleaning device according to claim 4, characterized in that: The lifting assembly includes a first transmission member, which includes a transmission shaft and a one-way bearing. One end of the transmission shaft is fixedly connected to the fixed cover, and the other end of the transmission shaft is fixedly connected to the one-way bearing. The one-way bearing is configured to rotate along the first direction and not rotate along the second direction.

6. The cleaning device according to claim 4, characterized in that: The mounting seat is provided with an accommodating cavity, the floating cover, the cleaning member and the fixed cover are sequentially arranged in the accommodating cavity, the bottom surface of the accommodating cavity has a first limiting portion, and the top surface of the floating cover has a second limiting portion. When the cleaning member moves along the track, the cleaning member lifts up the floating cover, and the first limiting portion and the second limiting portion contact each other. When the first limiting portion and the second limiting portion contact each other and the cleaning member rotates along the first direction, the floating cover and the fixed cover do not rotate.

7. The cleaning device according to claim 6, characterized in that: The cleaning member comprises a bracket and a cleaning brush, wherein the cleaning brush is mounted on the bracket, the bracket is arranged between the fixed cover and the floating cover, and the thickness of the bracket is greater than the width of the track defined by the lifting portion and the recessed portion.

8. The cleaning device according to claim 6, characterized in that The fixed cover comprises a clamping claw, and the floating cover comprises a clamping groove. The clamping claw is clamped in the clamping groove to limit the movement between the floating cover and the fixed cover along the rotation direction of the cleaning member.

9. The cleaning device according to claim 8, characterized in that The lifting assembly includes an elastic member, the floating cover is provided with a receiving groove, the elastic member is received in the receiving groove, and a part of the edge of the clamping claw is clamped on the elastic member so that the floating cover can move relative to the fixed cover in a direction close to or away from the ground.

10. The cleaning device according to claim 1, characterized in that The driving assembly comprises a driving member and a second transmission member, wherein the driving member is transmission-connected to the second transmission member, and the second transmission member is transmission-connected to the cleaning member.

11. The cleaning device according to claim 10, characterized in that The mounting seat comprises an upper shell and a lower cover, the upper shell is provided with a mounting groove, the driving member is mounted in the mounting groove, an accommodating space is formed between the upper shell and the lower cover, and the second transmission member is accommodated in the accommodating space.

12. The cleaning device according to claim 11, characterized in that The cleaning component also includes a lifting component, which includes a fixed cover, a floating cover and a second transmission member. The lower cover is provided with a accommodating cavity. The floating cover, the cleaning member and the fixed cover are sequentially arranged in the accommodating cavity. The cleaning member can be movably installed between the floating cover and the fixed cover. The floating cover is provided with a through hole. The driving component includes a third transmission member. The second transmission member is fixedly connected to the third transmission member. The third transmission member passes through the through hole and is fixedly connected to the cleaning member.

13. The cleaning device according to claim 12, characterized in that The inner wall surface of the through hole and the outer peripheral surface of the third transmission member are correspondingly provided with threads, so that the floating cover can move relative to the fixed cover in a direction close to or away from the ground.

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

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