Cleaning assembly and cleaning equipment

By setting the flow guide surface and hollow area on the mop of the cleaning equipment, combined with the design of the water barrier ribs, the problem of uneven mop of the cleaning equipment is solved, and a better mop is achieved, and the mop is not dry-dragged.

CN223111659UActive Publication Date: 2025-07-18BEIJING ROCKROBO TECH CO LTD
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Patent Information

Application Number
CN202422132186.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2025-07-18
Estimated Expiration
2034-08-30

AI Technical Summary

Technical Problem

Existing cleaning equipment has poor effect during the mop hydration process, which can easily lead to the problem of lack of water and dry mopping of the mop.

Method used

A cleaning component is designed, including a mop plate and a mop plate. A flow guide surface is provided on the top side of the mop plate, and a hollow area is formed on the hollow area on the mop plate. The diversion surface guides the cleaning liquid into the mop through the hollow area, and separates the hollow area with water barrier ribs to improve the water replenishment effect.

Benefits of technology

Through the design of the flow guide surface and hollow area, the water replenishment effect of the cleaning equipment is significantly improved, ensuring that the mop always maintains the appropriate moisture content and avoids dry mopping.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model provides a cleaning assembly and cleaning equipment. The cleaning assembly comprises a mopping plate and mopping cloth. The dragging cloth is arranged on the dragging plate, and the top side of the dragging plate comprises a first flow guide surface; a partial area, close to the first flow guide surface, of the carriage is hollowed out, so that a hollowed-out area communicating the top and the bottom of the carriage is formed; at least partial area of the mop cloth is positioned at the bottom of the hollow area; the first flow guide face at least partially guides cleaning liquid to pass through the hollowed-out area. According to the cleaning assembly, the water supplementing effect can be improved.
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Description

Technical Field

[0001] The present application relates to the field of cleaning technology, and particularly relates to a cleaning component and a cleaning device. Background Art

[0002] In the related art, a cleaning device can clean the ground by mopping with a mop. During the walking process of the cleaning device, as the moisture on the mop is lost, the mop needs to be replenished with water.

[0003] However, in the related art, the effect of replenishing water to the mop by the cleaning device is poor, and the problem of dry mopping due to water shortage of the mop is likely to occur. Summary of the Utility Model

[0004] In view of this, the main purpose of the embodiments of the present application is to provide a cleaning component and a cleaning device that can improve the water replenishing effect.

[0005] To achieve the above object, the technical solution of the embodiments of the present application is realized as follows:

[0006] A first aspect of the embodiments of the present application provides a cleaning component, including:

[0007] A mop board;

[0008] A mop disposed on the mop board;

[0009] The top side of the mop board includes a first water guiding surface;

[0010] Part of the area of the mop board near the first water guiding surface is hollowed out to form a hollow area communicating the top and the bottom of the mop board, and at least part of the area of the mop is located at the bottom of the hollow area;

[0011] The first water guiding surface at least partially guides the cleaning liquid through the hollow area.

[0012] In one implementation, at least part of the area of the first water guiding surface extends circumferentially around the rotation axis of the mop board; and / or,

[0013] At least part of the area of the hollow area extends circumferentially around the rotation axis of the mop board; and / or,

[0014] At least part of the first water guiding surface is located on one side of the hollow area close to the rotation axis of the mop board.

[0015] In one implementation, the mop board includes a mop board main body and a water retaining rib, the mop board main body includes the hollow area, the water retaining rib includes the first water guiding surface, and the water retaining rib is at least partially disposed in the hollow area.

[0016] In one embodiment, the water baffle divides the hollow area into a first hollow area and a second hollow area along the radial direction of the mop body. The first hollow area is located on the side of the water baffle away from the rotation axis of the mop. One side of the water baffle includes the first guiding surface to guide the cleaning liquid through the hollow area.

[0017] In one embodiment, the first guiding surface includes a first inclined surface near the first hollow area; along the direction approaching the first hollow area, the first inclined surface gradually slopes downward; and / or,

[0018] The first guiding surface includes a second inclined surface near the second hollow area; along the direction approaching the second hollow area, the second inclined surface gradually slopes downward.

[0019] In one embodiment, at least part of the cross-sectional shape of the first guiding surface of the water baffle is at least one of a combination composed of a circle, an arc, a semicircle, a triangle, a trapezoid, and a rhombus.

[0020] In one embodiment, along the radial direction of the mop body, the width dimension of the first hollow area is greater than or equal to the width dimension of the second hollow area; and / or,

[0021] The area of the first hollow area is greater than or equal to the area of the second hollow area.

[0022] In one embodiment, the mop body includes a water-blocking side wall, and the top end of the first guiding surface is arranged adjacent to the water-blocking side wall.

[0023] In one embodiment, along the thickness direction of the cleaning assembly, the first guiding surface is lower than the top area of the water-blocking side wall.

[0024] In one embodiment, the first guiding surface is located on the side of the hollow area away from the rotation axis of the mop, and at least part of the first guiding surface is an inclined plane.

[0025] In one embodiment, along the radial direction of the cleaning assembly, from the side away from the rotation axis of the mop to the side close to the rotation axis, the first guiding surface gradually slopes downward.

[0026] In one embodiment, the top side of the mop further includes a second guiding surface, and the second guiding surface is located on the side of the hollow area close to the rotation axis.

[0027] In one embodiment, along the direction away from the rotation axis, at least part of the second guiding surface is an inclined plane or a curved surface that slopes downward.

[0028] In one embodiment, the drag plate includes a guide section and an outer edge section, the guide section includes the first guide surface and is located on a side of the outer edge section close to the hollow area, the first guide surface is recessed relative to the top surface of the outer edge section to jointly form a first water retaining step.

[0029] In one embodiment, the first guide surface is located on a side of the hollow area away from the rotation axis of the drag plate, and the first guide surface includes a third inclined surface and a fourth inclined surface, the third inclined surface is located on a side of the fourth inclined surface away from the hollow area, along the direction close to the rotation axis of the drag plate, the third inclined surface and the fourth inclined surface are both inclined surfaces gradually tilted downward, and the fourth inclined surface is recessed relative to the third inclined surface to jointly form a second water retaining step.

[0030] A second aspect of an embodiment of the present application provides a cleaning device, comprising:

[0031] A shell assembly, the shell assembly comprising a water replenishment hole;

[0032] The cleaning assembly described in any one of the above items is rotatably arranged on the bottom side of the shell assembly, and the opening of the water replenishment hole faces the first guide surface.

[0033] In one embodiment, the cleaning component has a retracted state retracted to the bottom side of the shell component, and an extended state extended relative to the shell component. When the cleaning component is in at least one of the retracted state and the extended state, the opening of the water supply hole faces the first guide surface.

[0034] In one embodiment, when the cleaning component is in the retracted state, the opening of the water supply hole faces the first area of the first guide surface; when the cleaning component is in the extended state, the opening of the water supply hole faces the second area of the first guide surface.

[0035] In one embodiment, in a plane perpendicular to the rotation axis of the drag plate, the projection of the water replenishment hole is at least partially located within the coverage range of the projection of the first guide surface.

[0036] The embodiment of the present application provides a cleaning component and a cleaning device, wherein the cleaning component includes a drag plate and a mop. The top side of the drag plate includes a first guide surface, and a portion of the drag plate near the first guide surface is hollowed out to form a hollow area connecting the top and bottom of the drag plate, and at least a portion of the mop is located at the bottom of the hollow area. The first guide surface at least partially guides the cleaning liquid through the hollow area. It can be seen that by setting the first guide surface, the cleaning liquid can be guided to flow to the hollow area and enter the mop through the hollow area, which can greatly enhance the water replenishment effect of the cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Partial structural schematic diagram of a cleaning device according to an embodiment of the present application. In the figure, the cleaning component is in a retracted state;

[0038] Figure 2 is Figure 1 Schematic diagram of another perspective;

[0039] Figure 3 is Figure 2 Partial enlarged view of A in ;

[0040] Figure 4 is Figure 1 Schematic diagram of the cleaning component of the cleaning device in being in an extended state;

[0041] Figure 5 is Figure 4 Partial enlarged view of B in ;

[0042] Figure 6 is Figure 1 Schematic diagram of the drag plate of the cleaning component in ;

[0043] Figure 7 is Figure 6 Radial cross-sectional view of the drag plate in ;

[0044] Figure 8 is Figure 1 Another schematic diagram of the drag plate of the cleaning component in ;

[0045] Figure 9 is Figure 8 Radial cross-sectional view of the drag plate in ;

[0046] Figure 10 is Figure 1 Another schematic diagram of the drag plate of the cleaning component in ;

[0047] Figure 11 is Figure 10 Radial cross-sectional view of the drag plate in ;

[0048] Figure 12 is Figure 11 Partial enlarged view of C in ;

[0049] Figure 13 is Figure 11 Another schematic diagram of the water retaining rib at C in ;

[0050] Figure 14 Flowchart of a control method for a cleaning device according to another embodiment of the present application.

[0051] Explanation of reference numerals

[0052] 10. Housing assembly; 10a. Water replenishing hole; 20. Cleaning assembly; 21. Mop plate; 21a. First guiding surface; 21aa. First inclined surface; 21ab. Second inclined surface; 21ac. Third inclined surface; 21ad. Fourth inclined surface; 21b. Hollow area; 21ba. First hollow area; 21bb. Second hollow area; 21c. Second guiding surface; 211. Water retaining side wall; 212. Water retaining rib; 213. Second water retaining step. Detailed implementation manners

[0053] In this application, the "top", "bottom", "upper", and "lower" orientations or positional relationships are based on the Figure 1 orientations or positional relationships shown in the drawings. It should be understood that these orientation terms are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application.

[0054] An embodiment of this application provides a cleaning assembly 20. Please refer to Figure 6 , Figure 8 and Figure 10 . The cleaning assembly 20 includes a mop plate 21 and a mop cloth.

[0055] The mop cloth is disposed on the mop plate 21. The top side of the mop plate 21 includes a first guiding surface 21a. A partial area of the mop plate 21 near the first guiding surface 21a is hollowed out to form a hollow area 21b communicating the top and bottom of the mop plate 21, and at least a partial area of the mop cloth is located at the bottom of the hollow area 21b.

[0056] The first guiding surface 21a at least partially guides the cleaning liquid through the hollow area 21b.

[0057] Another embodiment of this application provides a cleaning device. Please refer to Figure 1 , Figure 2 and Figure 4 . The cleaning device includes a housing assembly 10 and the cleaning assembly 20 according to any embodiment of this application.

[0058] Please refer to Figure 3 and Figure 5 . The housing assembly 10 includes a water replenishing hole 10a. The cleaning assembly 20 is rotatably disposed on the bottom side of the housing assembly 10, and the opening of the water replenishing hole 10a faces the first guiding surface 21a.

[0059] Specifically, the specific type of the cleaning device is not limited. The cleaning assembly 20 can be used for any type of cleaning device, such as a cleaning robot. For the convenience of description, this application takes the cleaning device as a cleaning robot as an example for description.

[0060] The cleaning liquid is a cleaning liquid that can be used to replenish water to the mop to achieve the mopping effect of the mop. For example, the cleaning liquid is water. For the convenience of description, the present application describes the cleaning liquid as water as an example.

[0061] It should be noted that the cleaning device may be provided with a water supply component to supply water to the water replenishing hole 10a. Among them, the water supply component is a water supply structure in which the cleaning device can store a certain amount of water to replenish water to the mop of the cleaning component 20. For example, the water supply component includes a water storage tank and a water supply pump. Through the water supply pump, the water in the water storage tank can be supplied to the water replenishing hole 10a, and then water is replenished to the mop.

[0062] The cleaning component 20 is installed on the housing component 10. Both the mop plate 21 and the mop can rotate relative to the housing component 10, and rotate around the rotation axis of the mop plate 21. Among them, the rotation axis is the rotation central axis of the cleaning component 20, which is a virtual line.

[0063] The top side of the mop plate 21 includes a first water guiding surface 21a. Among them, the top and bottom sides of the mop plate 21 are based on the top and bottom directions when the cleaning device is in the working state. In fact, the first water guiding surface 21a is located on the side of the mop plate 21 close to the housing component 10.

[0064] The first water guiding surface 21a is the top surface of the mop plate 21 that can guide the water flow from the water replenishing hole 10a to the hollow area 21b and the direction of the mop.

[0065] The hollow area 21b is the hollow area on the mop plate 21, that is, the hollow area 21b is the area where the through hole penetrating the mop plate 21 is located.

[0066] The hollow area 21b is located in the area of the mop plate 21 close to the first water guiding surface 21a, so that the first water guiding surface 21a can guide the water flow into the hollow area 21b, and then replenish water to the mop through the hollow area 21b.

[0067] At least part of the mop is located at the bottom of the hollow area 21b. That is to say, at least part of the mop can be exposed to the top view through the hollow area 21b, so that the water flow passing through the hollow area 21b can enter the mop. According to the actual situation, it can be that part of the mop is located at the bottom of the hollow area 21b, or all areas of the mop are located at the bottom of the hollow area 21b.

[0068] The specific structural form of the first water guiding surface 21a is not limited.

[0069] For example, at least a partial region of the first guiding surface 21a extends circumferentially around the rotation axis of the mopping plate 21. That is to say, it can be that a partial region of the first guiding surface 21a extends circumferentially around the rotation axis of the mopping plate 21, or it can be that the entire region of the first guiding surface 21a extends circumferentially around the rotation axis of the mopping plate 21. Thus, during the rotation of the cleaning assembly 20, the guiding effect of the first guiding surface 21a can be better, and further, the water replenishment of the mop can be more uniform.

[0070] For example, please refer to Figure 6 , the first guiding surface 21a is an annular guiding surface.

[0071] For another example, the first guiding surface 21a is an arc-shaped guiding surface extending circumferentially along the rotation axis.

[0072] The specific structural form of the hollowed-out area 21b is not limited.

[0073] For example, at least a partial region of the hollowed-out area extends circumferentially around the rotation axis of the mopping plate 21. It can be that a partial region of the hollowed-out area 21b extends circumferentially around the rotation axis of the mopping plate 21, or it can be that the entire region of the hollowed-out area 21b extends circumferentially around the rotation axis of the mopping plate 21. Thus, during the rotation of the cleaning assembly 20, the flow-through effect of the hollowed-out area 21b can be better, and further, the water replenishment of the mop can be more uniform.

[0074] The specific number of the hollowed-out areas 21b is not limited.

[0075] For example, the mopping plate 21 has a plurality of hollowed-out areas 21b, such as 8, 16 or other numbers. Among the hollowed-out areas 21b, it can be that only some of the hollowed-out areas 21b are arranged at circumferential intervals around the rotation axis, or it can be that all of the hollowed-out areas 21b are arranged at circumferential intervals around the rotation axis. At the same time, by cooperating with the first guiding surface 21a extending circumferentially around the rotation axis of the cleaning assembly 20, the water replenishment effect of the water supply assembly to the mop can be more uniform during the rotation of the cleaning assembly 20.

[0076] It should be noted that the specific positional relationship between the hollowed-out area 21b and the first guiding surface 21a can be set according to the actual situation.

[0077] For example, please refer to Figure 6, the first diversion surface 21a is at least partially located on the side of the hollow area 21b away from the rotation axis of the mop plate 21. That is to say, it can be that only a partial area of the first diversion surface 21a is located on the side of the hollow area 21b away from the rotation axis, that is, outside the hollow area 21b. It can also be that the entire area of the first diversion surface 21a is located on the side of the hollow area 21b away from the rotation axis, that is, the first diversion surface 21a is entirely located on the outer peripheral side of the hollow area 21b. Thus, during the rotation of the cleaning assembly 20, when water is supplied to the mop through the water supply assembly and the water flow from the water replenishing hole 10a flows onto the mop plate 21, since the first diversion surface 21a is at least partially arranged outside the hollow area 21b, the water flow can, under the guiding action of the first diversion surface 21a, overcome at least part of the centrifugal force generated by the rotation of the cleaning assembly 20, and can promote the water flow to flow into the hollow area 21b, thereby realizing water replenishment to the mop.

[0078] For another example, the first diversion surface 21a is at least partially located on the side of the hollow area 21b close to the rotation axis. That is to say, it can be that a partial area of the first diversion surface 21a is located on the side of the hollow area 21b close to the rotation axis, that is, inside the hollow area 21b. It can also be that the entire area of the first diversion surface 21a is located on the side of the hollow area 21b close to the rotation axis, that is, the first diversion surface 21a is entirely located on the inner peripheral side of the hollow area 21b. Thus, it can reduce the risk of water splashing to the rotation axis of the cleaning assembly 20.

[0079] The opening of the water replenishing hole 10a faces the first diversion surface 21a, is located on the top side of the first diversion surface 21a, and is arranged close to the first diversion surface 21a, so that more water from the water supply assembly can flow onto the first diversion surface 21a, making the effect of the water supply assembly replenishing water to the mop better.

[0080] In the cleaning assembly 20 of the embodiment of the present application, it includes a mop plate 21 and a mop. The top side of the mop plate 21 includes a first diversion surface 21a. A partial area of the mop plate 21 close to the first diversion surface 21a is hollowed out to form a hollow area 21b communicating the top and bottom of the mop plate 21. The first diversion surface 21a at least partially guides the cleaning liquid through the hollow area 21b. It can be seen that by arranging the first diversion surface 21a, the cleaning liquid can be guided to flow into the hollow area 21b and enter the mop through the hollow area 21b, which can greatly enhance the water replenishing effect of the cleaning device.

[0081] In one embodiment, please refer to Figure 10 and Figure 11 , the mop plate 21 includes a mop plate main body and a water retaining rib 212. The mop plate main body has a hollow area 21b. The water retaining rib 212 includes a first diversion surface 21a, and the water retaining rib 212 is arranged in the hollow area 21b.

[0082] Specifically, the water retaining rib 212 has a good water diversion effect. It is arranged on the flow path of water flowing out of the water replenishment hole 10a to block and divert the water flowing out of the water replenishment hole 10a.

[0083] In one embodiment, the water retaining rib 212 divides the hollow area 21b into a first hollow area 21ba and a second hollow area 21bb along the radial direction of the carriage body. The first hollow area 21ba is located on the side of the water retaining rib 212 away from the rotation axis of the carriage 21. One side of the water retaining rib 212 includes a first guide surface 21a to guide the cleaning liquid through the hollow area 21b.

[0084] Specifically, under the water-dividing effect of the water retaining rib 212, a part of the water flows to the first hollow area 21ba, thereby replenishing the mop area located at the bottom of the first hollow area 21ba. At the same time, another part of the water flows to the second hollow area 21bb, thereby replenishing the mop area located at the bottom of the second hollow area 21bb. A better water-dividing effect can be achieved, and compared with the technical solution of directly aligning the water replenishing hole with the hollow area in the related art, the water replenishing effect is more uniform.

[0085] The water retaining rib 212 is located in the hollow area 21b, and the hollow area 21b is divided into a first hollow area 21ba and a second hollow area 21bb by the water retaining rib 212. The first hollow area 21ba is located on the side of the water retaining rib 212 away from the rotation axis, that is, on the outside of the water retaining rib 212, and the second hollow area 21bb is located on the side of the water retaining rib 212 close to the rotation axis, that is, on the inside of the water retaining rib 212.

[0086] It should be noted that the specific arrangement of the water retaining ribs 212 is not limited.

[0087] For example, the water retaining rib 212 is a water retaining ring extending axially around the rotation axis.

[0088] For example, see Figure 12 The first guide surface 21a includes a first inclined surface close to the first hollow area 21ba; along the direction close to the first hollow area 21ba, the first inclined surface gradually slopes downward.

[0089] Specifically, the first inclined surface 21aa is located on the side of the first guide surface 21a away from the rotation axis, and the first inclined surface 21aa is formed by the inclined plane bending and extending around the circumferential direction of the rotation axis. From the cross-sectional shape of the water retaining rib 212, the first inclined surface 21aa is inclined downward from the side close to the rotation axis to the side away from the rotation axis, thereby facilitating the water flow from the water replenishment hole 10a to flow downward along the first inclined surface 21aa to the first hollow area 21ba.

[0090] For another example, the first water guiding surface 21a includes a second inclined surface on one side close to the second hollow area 21bb. Along the direction approaching the second hollow area 21bb, the second inclined surface gradually slopes downward.

[0091] Specifically, the second inclined surface 21ab is located on the side of the first water guiding surface 21a close to the rotation axis. The second inclined surface 21ab is formed by the circumferential bending extension of an inclined plane around the rotation axis. The inclination directions of the first inclined surface 21aa and the second inclined surface 21ab are opposite. The second inclined surface 21ab slopes downward from the side away from the rotation axis to the side close to the rotation axis. Thus, it is convenient for the water flow from the water replenishing hole 10a to flow downward along the second inclined surface 21ab into the second hollow area 21bb.

[0092] The specific cross-sectional form of the water retaining rib 212 is not limited either.

[0093] For example, at least part of the cross-section of the first water guiding surface 21a of the water retaining rib 212 has a shape that is at least one of a combination composed of a circle, an arc, a semi-circle, a triangle, a trapezoid, and a rhombus.

[0094] That is to say, at least part of the cross-section area of the first water guiding surface 21a of the water retaining rib 212 has the above shape or its combination. By adopting the above cross-sectional shape, it is beneficial to the water flow, and thus it is convenient to replenish water to the mop.

[0095] In one embodiment, along the radial direction of the mop main body, the width dimension of the first hollow area 21ba is greater than or equal to the width dimension of the second hollow area 21bb. That is to say, the water retaining rib 212 is located at a relatively inner position within the hollow area 21b or at the middle position of the hollow area 21b, so that the water replenishing hole 10a is also relatively inner or at the middle position relative to the cleaning assembly 20. Thus, when the water flow from the water replenishing hole 10a flows onto the water retaining rib 212, since the width dimension of the first hollow area 21ba outside the water retaining rib 212 is relatively large or the same as that of the second hollow area 21bb, the risk of the water flow detaching from the cleaning assembly 20 under the action of the centrifugal force of the cleaning assembly 20 can be reduced, so that as much water flow as possible can be supplemented into the mop through the first hollow area 21ba, and the water replenishing effect can be better.

[0096] Of course, in other embodiments, it may also be that the width dimension of the first hollow area 21ba is less than the width dimension of the second hollow area 21bb.

[0097] For another example, the area of the first hollow area 21ba is greater than or equal to the area of the second hollow area 21bb. Thus, the water replenishing effect can be improved.

[0098] In one embodiment, please refer to Figure 13The carriage body includes a water retaining side wall 211, and the top of the first guide surface 21a is disposed adjacent to the water retaining side wall 211. Thus, under the blocking effect of the water retaining side wall 211, the risk of water splashing to the outside can be reduced, thereby improving the water replenishment effect.

[0099] In one embodiment, along the thickness direction of the cleaning assembly 20 , the first flow guiding surface 21 a is lower than the top area of the water retaining side wall 211 .

[0100] Specifically, the carriage body has a water retaining side wall 211 located on the side of the first hollow area 21ba away from the water retaining rib 212, and the top of the first guide surface 21a is located at the bottom side of the top edge of the water retaining side wall 211. In other words, the side of the first hollow area 21ba close to the rotation axis is the water retaining rib 212, and the side of the first hollow area 21ba away from the rotation axis is the water retaining side wall 211 of the carriage body. The top height of the first guide surface 21a (i.e., the height of the top area of the water retaining rib 212) is lower than the height of the top edge of the water retaining side wall 211, thereby reducing the risk of the water flow from the water replenishment hole 10a flowing to the water retaining rib 212 and separating from the first hollow area 21ba under the action of centrifugal force. The water retaining side wall 211 can play a certain blocking role on the splashing water flow, which can further improve the water replenishment effect.

[0101] In one embodiment, in a plane perpendicular to the axis of rotation of the mopping plate 21, the projection of the water supply hole 10a is at least partially located within the coverage of the projection of the first guide surface 21a. In other words, the water supply hole 10a is located on the upper side of the first guide surface 21a. From the perspective of projection, the water supply hole 10a may be partially located within the projection range of the first guide surface 21a, or may be entirely located within the projection range of the first guide surface 21a. As a result, more water from the water supply hole 10a can flow to the water retaining rib 212, so that the water can be more evenly replenished into the mop through the water-dividing effect of the water retaining rib 212.

[0102] In one embodiment, please refer to Figure 6 and Figure 7 The first guide surface 21a is located on the side of the hollow area 21b away from the rotation axis of the drag plate 21, and at least part of the first guide surface 21a is an inclined surface. Therefore, it is easy to guide the water flow into the hollow area 21b, so that the water replenishment effect of the cleaning device is better.

[0103] In one embodiment, along the radial direction of the cleaning component 20, from the side away from the rotation axis to the side close to the rotation axis, the first guiding surface 21a gradually slopes downward. Thus, when the water flow from the water replenishing hole 10a flows downward onto the first guiding surface 21a, since the first guiding surface 21a is an inclined surface, the water flow can overcome the centrifugal force as much as possible under the action of gravity, so that more water can flow downward along the first guiding surface 21a into the hollow area 21b, making the water replenishing effect of the cleaning device better.

[0104] Specifically, the side of the hollow area 21b away from the rotation axis refers to the side that is relatively far from the cleaning component 20 along the radial direction of the cleaning component 20 with respect to the hollow area 21b, that is, the outer side.

[0105] Along the radial direction of the cleaning component 20, the outer side of the first guiding surface 21a is higher than the inner side, and it gradually slopes downward toward the inner side (i.e., the side close to the hollow area 21b), so as to guide the water flow into the hollow area 21b.

[0106] The drag plate 21 may only form the first guiding surface 21a on the side of the hollow area 21b away from the rotation axis. According to the actual situation, the drag plate 21 may also form the first guiding surface 21a in other areas.

[0107] For example, the drag plate 21 includes a water retaining rib 212 with a first guiding surface 21a. The water retaining rib 212 is arranged in the hollow area 21b, and the water replenishing hole 10a faces the first guiding surface 21a on the water retaining rib 212. Of course, in other embodiments, it may also be that the housing assembly 10 has a plurality of water replenishing holes 10a, and a water replenishing hole 10a is correspondingly arranged on the top side of each first guiding surface 21a.

[0108] In one embodiment, please refer to Figure 9 , the top side of the drag plate 21 further includes a second guiding surface 21c, and the second guiding surface 21c is located on the side of the hollow area 21b close to the rotation axis. Thus, the risk of water flow splashing toward the side close to the rotation axis can be reduced, and the water replenishing effect can be improved.

[0109] In one embodiment, along the direction away from the rotation axis, at least a part of the second guiding surface 21c is an inclined surface or a curved surface that slopes downward. Thus, when the water flow from the water replenishing hole 10a splashes toward the side close to the rotation axis, under the guiding action of the second guiding surface 21c, as much water as possible can flow into the hollow area 21b and then be replenished into the mop.

[0110] Specifically, the second guiding surface 21c is located on the side of the hollow area 21b close to the rotation axis, and it corresponds to the first guiding surface 21a on the side of the hollow area 21b away from the rotation axis, but the inclination direction of the second guiding surface 21c is exactly opposite to the inclination direction of the first guiding surface 21a.

[0111] The second diversion surface 21c may be an inclined plane that slopes downward toward the hollow area 21b, or it may be a curved surface that slopes downward toward the hollow area 21b.

[0112] The specific setting form of the second diversion surface 21c can be set according to the actual situation. For example, the second diversion surface 21c is an annular diversion surface. Thus, the overall diversion effect of the second diversion surface 21c can be improved.

[0113] In one embodiment, the drag plate 21 includes a diversion section and an outer edge section. The diversion section includes a first diversion surface 21a and is located on the side of the outer edge section close to the hollow area 21b. The first diversion surface 21a is recessed relative to the top surface of the outer edge section to jointly form a first water-blocking step. Thus, by setting the first water-blocking step, the water flow can be better blocked from overflowing outward, and the water replenishment effect can be improved.

[0114] Specifically, along the radial direction of the cleaning assembly 20, from the inside to the outside are the hollow area 21b, the diversion section, and the outer edge section. The top surface height of the diversion section (i.e., the height of the first diversion surface 21a) is lower than the top surface height of the outer edge section. Thus, a height difference can be formed between the diversion section and the outer edge section, and then the first water-blocking step is formed. When the water flow from the water replenishment hole 10a flows onto the first diversion surface 21a, due to the diversion effect of the first diversion surface 21a and the water-blocking effect of the first water-blocking step, the water flow can be made to flow toward the hollow area 21b as much as possible, thereby improving the water replenishment effect.

[0115] It should be noted that the shapes of the diversion section and the outer edge section are not limited. For example, both the diversion section and the outer edge section are annular regions extending circumferentially around the rotation axis.

[0116] In one embodiment, please refer to Figure 8 and Figure 9 , the first diversion surface 21a is located on the side of the hollow area 21b away from the rotation axis of the drag plate 21. The first diversion surface 21a includes a third inclined plane 21ac and a fourth inclined plane 21ad. The third inclined plane 21ac is located on the side of the fourth inclined plane 21ad away from the hollow area 21b. Along the direction close to the rotation axis, both the third inclined plane 21ac and the fourth inclined plane 21ad are inclined planes that gradually slope downward, and the fourth inclined plane 21ad is recessed relative to the third inclined plane 21ac to jointly form a second water-blocking step 213. Thus, by setting the second water-blocking step 213, the water flow can be better blocked from overflowing outward, and the water replenishment effect can be improved.

[0117] That is to say, a water retaining step may also be formed at the first diversion surface 21a. By reducing the overall height of the fourth inclined surface 21ad inside the third inclined surface 21ac, a water retaining step is formed between the fourth inclined surface 21ad and the third inclined surface 21ac. When the water flow from the water replenishing hole 10a flows onto the first diversion surface 21a, due to the diversion effect of the first diversion surface 21a and the water retaining effect of the second water retaining step 213, the water flow can be made to flow towards the hollow area 21b as much as possible, thereby improving the water replenishing effect.

[0118] It should be noted that in other embodiments, a first water retaining step and a second water retaining step 213 may be formed on the drag plate 21 at the same time. Thus, by forming multiple steps, the function of multiple-stage water retaining can be achieved, and the water replenishing effect can be further improved.

[0119] In one embodiment, please refer to Figure 2 and Figure 4 , the cleaning assembly 20 has a contracted state of contracting to the bottom side of the housing assembly 10 and an extended state of extending relative to the housing assembly 10. When the cleaning assembly 20 is in at least one of the contracted state and the extended state, the opening of the water replenishing hole 10a faces the first diversion surface 21a.

[0120] Specifically, according to the actual situation, it may be that only in the contracted state, the opening of the water replenishing hole 10a faces the first diversion surface 21a, or only in the extended state, the opening of the water replenishing hole 10a faces the first diversion surface 21a, or in both the extended state and the contracted state, the opening of the water replenishing hole 10a faces the first diversion surface 21a. Thus, the design of the water replenishing hole 10a in different states can be set according to actual needs.

[0121] For example, when the cleaning assembly 20 is in the contracted state, the opening of the water replenishing hole 10a faces the first area of the first diversion surface 21a; when the cleaning assembly 20 is in the extended state, the opening of the water replenishing hole 10a faces the second area of the first diversion surface 21a. Thus, the requirement of replenishing water to the mop through the water replenishing hole 10a when the cleaning assembly 20 is in the contracted state can be met.

[0122] Specifically, the cleaning assembly 20 has a contracted state and an extended state, and the overlapping area of the cleaning assembly 20 with the housing assembly 10 in the contracted state is larger than that in the extended state. That is to say, compared with the extended state, more areas of the cleaning assembly 20 in the contracted state are located under the coverage of the housing assembly 10.

[0123] It can be understood that in the retracted state, all regions of the cleaning component 20 may be located under the coverage of the housing component 10, or only some regions may be located under the coverage of the housing component 10. In the extended state, all regions of the cleaning component 20 may be located outside the coverage of the housing component 10, or only some regions may be located outside the coverage of the housing component 10.

[0124] Regardless of whether the cleaning component 20 is in the retracted state or the extended state, the opening of the water replenishing hole 10a will face the first guiding surface 21a. The difference is that in different states, the opening of the water replenishing hole 10a faces different regions of the first guiding surface 21a.

[0125] Another embodiment of the present application provides a control method for a cleaning device. Please refer to Figure 14 , which is used for the cleaning device described in any embodiment of the present application. The cleaning device further includes a water supply component. The cleaning component 20 has a retracted state of retracting to the bottom side of the housing component 10 and an extended state of extending relative to the housing component 10. The control method includes the following steps:

[0126] Step S1: When the cleaning component 20 is in at least one of the retracted state and the extended state, control the water supply component to be turned on to replenish water to the mop plate 21 and / or the mop along the water replenishing hole 10a, the first guiding surface 21a, and the hollow area 21b.

[0127] Specifically, when the water supply component is turned on, the water flow from the water supply component sequentially flows through the water replenishing hole 10a, the first guiding surface 21a, and the hollow area 21b, and then flows into the mop plate 21 and / or the mop to achieve the purpose of replenishing water to the mop plate 21 and / or the mop.

[0128] The cleaning device may be able to replenish water to the mop plate 21 and / or the mop through the water supply component only when the cleaning component 20 is in the retracted state. It may also be able to replenish water to the mop plate 21 and / or the mop through the water supply component only when the cleaning component 20 is in the extended state. It may also be that the cleaning component 20 can replenish water to the mop plate 21 and / or the mop through the water supply component both in the retracted state and the extended state.

[0129] Exemplarily, the control method includes the following steps:

[0130] When the cleaning component 20 is in the retracted state, control the water supply component to be turned on to replenish water to the mop plate 21 and / or the mop.

[0131] When the cleaning component 20 is in the extended state, no water is replenished to the mop plate 21 and / or the mop.

[0132] Specifically, when the cleaning component 20 is in the retracted state, the cleaning device replenishes water to the mop plate 21 and / or the mop through the water supply component. When the cleaning component 20 is in the extended state, the water supply component is turned off to stop replenishing water to the mop plate 21 and / or the mop.

[0133] It should be noted that in the retracted state, the cleaning device can control the water supply component to replenish water to the mop plate 21 and / or the mop, but whether water replenishment is required can be determined according to actual needs.

[0134] In one embodiment, the cleaning device has a state of walking away from the wall, and the control method includes the following steps:

[0135] Confirm that the cleaning device is in the state of walking away from the wall, control the cleaning component 20 to be in the retracted state, and when the cleaning device walks to the set distance, control the water supply component to open to replenish water to the mop plate 21 and / or the mop.

[0136] Specifically, the state of walking away from the wall of the cleaning device means that the cleaning device is in a state of not walking along the wall or other objects, there are no obstacles on its traveling route and around it, and there are no wall corners or other object corners on the ground around the cleaning device that need to be cleaned, so the cleaning component 20 does not need to extend outside the housing component 10.

[0137] The set distance is the traveling distance preset by the user.

[0138] In one embodiment, multiple set water volumes are set, a mapping relationship is established between the set water volume and the set distance, and when the cleaning device walks to the set distance, the water supply component is controlled to replenish the corresponding set water volume of water to the mop and / or the mop plate 21.

[0139] Specifically, the set water volume is the water replenishment volume preset by the user. When the path traveled by the cleaning device in the state of walking away from the wall reaches the set distance, the water supply component can be controlled to open to replenish water to the mop plate 21 and / or the mop, and the water replenishment volume is the set water volume. Thus, it is possible to prevent the problem that the cleaning device drags dry due to too long a walking distance, and at the same time, it is also possible to prevent the problem that the mop is too wet or too dry due to too much or too little water replenishment.

[0140] It should be noted that the set distance corresponds to the set water volume, that is, the two are preset and matched. When the cleaning device walks the set distance and replenishes the water of the set water volume, it can better maintain the water content state of the mop, making the mopping effect of the cleaning component 20 good.

[0141] In addition, the cleaning device can include multiple levels of set distances and corresponding multiple levels of set water volumes, and their specific values can be set according to actual situations.

[0142] Exemplarily, the set water volume is divided into a first set water volume, a second set water volume, a third set water volume, a fourth set water volume, and a fifth set water volume. The set travel distance is divided into a first set travel distance (corresponding to the first set water volume), a second set travel distance (corresponding to the second set water volume), a third set travel distance (corresponding to the third set water volume), a fourth set travel distance (corresponding to the fourth set water volume), and a fifth set travel distance (corresponding to the fifth set water volume).

[0143] Among them, the set water volume at each level can be the water replenishment volume with the same value, or the water replenishment volume with different values. For example, it gradually increases from the first set water volume to the fifth set water volume, or gradually decreases from the first set water volume to the fifth set water volume.

[0144] In one embodiment, the first set travel distance is 230 cm, the second set travel distance is 200 cm, the third set travel distance is 170 cm, the fourth set travel distance is 120 cm, and the fifth set travel distance is 85 cm. When the user adopts the first set water volume and the first set travel distance, after traveling 230 cm, water with the first set water volume is replenished to the mop plate 21 and / or the mop cloth. Since the cleaning device travels the farthest distance, it corresponds to the ultra-small mopping water volume mode of the cleaning device. When the user adopts the fifth set water volume and the fifth set travel distance, since the cleaning device travels the shortest distance, it corresponds to the ultra-large mopping water volume mode of the cleaning device.

[0145] Of course, the set water volume and the set travel distance can also be divided into more levels. For example, the set water volume is from 1 to 30 levels, corresponding to 230 cm to 85 cm of the set travel distance respectively, with a step of 5 cm.

[0146] In one embodiment, the cleaning device has a state of walking along the wall, and the control method includes the following steps:

[0147] Confirm that the cleaning device is in the state of walking along the wall. When the cleaning component 20 switches from the extended state to the retracted state, confirm the first actual travel distance between the position where the cleaning component 20 is located and the water replenishment position, and control the water supply component according to the ratio of the first actual travel distance to the set travel distance and the set duration; where the water replenishment position is the position where the cleaning device is located when the water supply component replenishes water to the mop plate 21 and / or the mop cloth last time.

[0148] Specifically, the state of the cleaning device walking along the wall means that the cleaning device is in the state of walking along the wall or other objects. There are wall corners or other object corners on the ground that need to be cleaned on the periphery of the cleaning device, so the cleaning component 20 needs to extend to the outside of the housing component 10.

[0149] Since the cleaning component 20 needs to be replenished with water in the retracted state, when the cleaning device is in the state of walking along the wall, after the cleaning component 20 switches from the extended state to the retracted state, it is necessary to confirm whether to replenish water to the mop plate 21 and / or the mop cloth.

[0150] Specifically, at the time of this judgment, the position where the cleaning device is located is the actual position. Before this judgment, when the water supply assembly started to replenish water to the mop plate 21 and / or the mop for the last time, the position where the cleaning device was located was the water replenishing position. The actual walking distance of the cleaning device from the water replenishing position to the actual position is the first actual distance. And the opening or closing of the water supply assembly is controlled by the mutual relationship among the first actual distance, the set distance, and the set duration. Thus, the cleaning device can determine whether water replenishment is needed according to the actual situation of the walking distance.

[0151] It should be noted that how to control the water supply assembly according to the first actual distance, the set distance, and the set duration can be set according to the actual situation.

[0152] Exemplarily, the control method includes:

[0153] If the ratio is greater than or equal to the set duration, water is replenished to the mop plate 21 and / or the mop.

[0154] If the ratio is less than the set duration, water is not replenished to the mop plate 21 and / or the mop.

[0155] Specifically, at the time of judgment, if the ratio of the first actual distance to the set distance is greater than or equal to the set duration, it is determined that the mop is short of water, and the water supply assembly needs to supply water to the mop plate 21 and / or the mop.

[0156] At the time of judgment, if the ratio of the first actual distance to the set distance is less than the set duration, it is determined that the mop is not short of water, and there is no need to supply water to the mop plate 21 and / or the mop through the water supply assembly, and the closed state of the water supply assembly can be maintained.

[0157] Thus, while realizing automatic water replenishment to the mop plate 21 and / or the mop, it will not make the water content of the mop too large and too wet, nor will it make the water content of the mop too small and too dry.

[0158] It should be noted that both the set distance and the set duration can be set according to the actual situation.

[0159] For example, in the large water volume mode, the set distance is 120 cm and the set duration is 1 s. Then, when the first actual distance / 120 is greater than or equal to 1, water replenishment is carried out. If it is less than 1, the cleaning component 20 is switched from the retracted state to the extended state, waits for the next time to switch back to the retracted state, and then makes a judgment.

[0160] It should be noted that for scenarios such as the corner of a wall or the leg of a chair, the cleaning component 20 will passively expand and contract repeatedly. At this time, the cumulative walking distance can be divided by the set distance. If the quotient obtained is less than the set duration, no water replenishment is carried out. If it is greater than or equal to the set duration, water replenishment is carried out.

[0161] In one embodiment, the control method includes:

[0162] When the cleaning component 20 is in the extended state, confirm the second actual distance between the position where the cleaning device is located and the water replenishment position.

[0163] If the second actual distance is greater than or equal to the set upper limit distance, control the cleaning component 20 to switch from the extended state to the retracted state, and control the water supply component to turn on. Thus, it is possible to prevent the cleaning device from remaining in the extended state for too long without being able to replenish water, thereby reducing the risk of dry mopping with the mop.

[0164] Specifically, when the cleaning component 20 is in the extended state, determine the actual walking distance between the current position of the cleaning device and the position of the cleaning device when the water supply component last replenished water to the mop plate 21 and / or the mop, and compare it with the set upper limit distance, so as to determine whether the cleaning device needs to retract for water replenishment.

[0165] It can be understood that if the second actual distance is less than the set upper limit distance, maintain the extended state of the cleaning component 20, and the cleaning device can continue to move forward for cleaning.

[0166] In fact, this method can be well applied to the scenario of a straight wall. When the distance along the wall is long, the upper limit walking distance can be set to forcibly control retraction for water replenishment.

[0167] Exemplarily, when the distance along the wall in front of the cleaning device is 20 m, if the cleaning device walks 20 m along the wall and there are no obstacles, the cleaning component 20 will not retract passively. At this time, completely cleaning 20 m will cause the mop to lack water and the cleaning effect will be poor. Therefore, by setting the set upper limit distance, such as 10 m, when the cleaning device reaches the upper limit distance, the cleaning device will actively control the cleaning component 20 to retract and replenish water.

[0168] In one embodiment, the cleaning device has a small-range walking state, and the control method includes: confirm that the cleaning device is in the small-range walking state, and control the water supply component to turn off. Thus, when the cleaning device performs local small-range mopping, the risk of excessive water stains on the local small-range ground can be reduced.

[0169] Specifically, the small-range walking state refers to the state when the cleaning device is trapped in a small range and walks back and forth repeatedly while mopping. If the cumulative actual walking distance is divided by the set distance for water replenishment in a small range, it may cause the problem of excessive water stains on the local small-range ground. Therefore, in this state, the closed state of the water supply component can be maintained, and water replenishment can be carried out after the cleaning device gets out of the trapped state.

[0170] It should be noted that the specific judgment conditions for the small-range walking state can be set according to the actual situation.

[0171] Exemplarily, when the size of the walking space where the cleaning device is located is less than or equal to the set size, it is confirmed that the cleaning device is in a small-range walking state.

[0172] It should be noted that the specific set value of the set size can be determined according to the actual situation.

[0173] For example, the set size is greater than or equal to 105% of the cross-sectional area of the cleaning device and less than or equal to 110% of the cross-sectional area of the cleaning device. That is to say, when the cleaning device repeatedly walks within a range where the size is less than or equal to the set size, it is determined that the cleaning device is in a small-range walking state. The set size can be set according to the actual situation, such as 105%, 108%, or 110% of the cross-sectional area of the cleaning device.

[0174] Another embodiment of the present application provides a cleaning system, which includes a memory, a processor, and the cleaning device described in any embodiment of the present application.

[0175] Among them, the memory stores computer-executable instructions, and the processor executes the computer-executable instructions to implement the steps of the control method of the cleaning device described in any embodiment of the present application.

[0176] In the description of the present application, the descriptions referring to terms such as "in one embodiment", "in some embodiments", "in a specific embodiment", or "exemplary" etc. mean 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 embodiments of the present application. In the present application, the schematic expressions of the above terms are not necessarily directed 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. In addition, without contradiction, those skilled in the art can combine different embodiments or examples described in the present application and the features of different embodiments or examples.

[0177] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are all included in the protection scope of the present application.

Claims

1. A cleaning component, characterized in that include: Tray board; a mop cloth disposed on the drag board; The top side of the carriage has a first flow guide surface; A portion of the drag plate close to the first guide surface is hollowed out to form a hollow area connecting the top and bottom of the drag plate, and at least a portion of the mop cloth is located at the bottom of the hollow area; The first guide surface at least partially guides the cleaning fluid through the hollow area.

2. The cleaning assembly according to claim 1, wherein At least a portion of the first guide surface extends circumferentially around the rotation axis of the carriage; and / or, At least a portion of the hollow area extends around the circumference of the rotation axis of the carriage; and / or, The first guide surface is at least partially located on a side of the hollow area away from the rotation axis of the carriage; and / or, The first guide surface is at least partially located on a side of the hollow area close to the rotation axis of the carriage.

3. The cleaning assembly according to claim 1, wherein, The drag plate includes a drag plate body and water retaining ribs, the drag plate body includes the hollow area, the water retaining ribs include the first guide surface, and the water retaining ribs are at least partially arranged in the hollow area.

4. The cleaning assembly according to claim 3, wherein, The water retaining rib divides the hollow area into a first hollow area and a second hollow area along the radial direction of the drag plate body. The first hollow area is located on the side of the water retaining rib away from the rotation axis of the drag plate. One side of the water retaining rib includes the first guide surface to guide the cleaning liquid through the hollow area.

5. The cleaning assembly according to claim 4, wherein, The first guide surface includes a first inclined surface close to the first hollow area; the first inclined surface gradually slopes downward in a direction close to the first hollow area; and / or, The first guide surface includes a second inclined surface close to the second hollow area; the second inclined surface gradually slopes downward in a direction close to the second hollow area.

6. The cleaning assembly according to any one of claims 3-5, characterized in that, At least a portion of the cross-section of the first guide surface of the water retaining rib has a shape of at least one of a combination of a circle, an arc, a semicircle, a triangle, a trapezoid and a rhombus.

7. The cleaning component according to claim 4 or 5, characterized in that, Along the radial direction of the carriage body, the width of the first hollow area is greater than or equal to the width of the second hollow area; and / or, The area of the first hollow region is greater than or equal to the area of the second hollow region.

8. The cleaning assembly according to any one of claims 3-5, characterized in that, The carriage body comprises a water retaining side wall, and the top end of the first flow guiding surface is arranged adjacent to the water retaining side wall.

9. The cleaning assembly according to claim 8, wherein, Along the thickness direction of the cleaning component, the first guide surface is lower than the top area of the water retaining side wall.

10. The cleaning assembly according to claim 1, wherein, The first flow guiding surface is located at a side of the hollow area away from the rotation axis of the carriage, and at least a part of the first flow guiding surface is an inclined surface.

11. The cleaning assembly according to claim 10, wherein Along the radial direction of the cleaning component, from a side away from the rotation axis of the drag plate to a side close to the rotation axis, the first guide surface gradually slopes downward.

12. The cleaning assembly according to claim 10 or 11, characterized in that, The top side of the drag plate further includes a second flow guiding surface, and the second flow guiding surface is located on a side of the hollow area close to the rotation axis.

13. The cleaning assembly according to claim 12, wherein Along the direction away from the rotation axis, at least a portion of the second guide surface is an inclined surface or a curved surface sloping downward.

14. The cleaning assembly according to claim 10 or 11, characterized in that, The drag plate includes a guide section and an outer edge section, the guide section includes the first guide surface and is located on a side of the outer edge section close to the hollow area, the first guide surface is recessed relative to the top surface of the outer edge section to jointly form a first water retaining step.

15. The cleaning assembly according to claim 1, characterized in that, The first water guiding surface is located on a side of the hollow area away from the rotation axis of the drag plate. The first water guiding surface includes a third inclined surface and a fourth inclined surface. The third inclined surface is located on a side of the fourth inclined surface away from the hollow area. Along the direction approaching the rotation axis of the drag plate, both the third inclined surface and the fourth inclined surface are inclined surfaces that gradually slope downward, and the fourth inclined surface is recessed relative to the third inclined surface to jointly form a second water retaining step.

16. A cleaning device, characterized in that, Comprising: A housing assembly, the housing assembly including a water replenishing hole; The cleaning assembly according to any one of claims 1-15, the cleaning assembly being rotatably provided on the bottom side of the housing assembly, and the opening of the water replenishing hole facing the first water guiding surface.

17. The cleaning device according to claim 16, wherein, The cleaning assembly has a contracted state in which it is retracted to the bottom side of the housing assembly and an extended state in which it extends relative to the housing assembly. When the cleaning assembly is in at least one of the contracted state and the extended state, the opening of the water replenishing hole faces the first water guiding surface.

18. The cleaning device according to claim 17, wherein, When the cleaning assembly is in the contracted state, the opening of the water replenishing hole faces a first area of the first water guiding surface; when the cleaning assembly is in the extended state, the opening of the water replenishing hole faces a second area of the first water guiding surface.

19. The cleaning device according to claim 16, characterized in that, In a plane perpendicular to the rotation axis of the drag plate, the projection of the water replenishing hole is at least partially within the coverage of the projection of the first water guiding surface.