Cleaning apparatus

Abstract

The utility model discloses a kind of cleaning equipment, cleaning equipment includes main body, cleaning component and liquid supplementing component, cleaning component is located at the bottom of main body and has inner state and outer state, cleaning component includes support and flexible cleaning piece, along the height direction of main body, flexible cleaning piece is located on the surface of support away from main body, liquid supplementing component includes at least one first water outlet, at least one first water outlet is set on support, liquid supplementing component is used to flow to flexible cleaning piece on liquid by at least one first water outlet.The utility model solves the problem that liquid is easy to splash to mop outside and flow to ground, wall, furniture and other objects during the process of mop movement.

Description

Technical Field

[0001] This application relates to the field of cleaning technology, and more specifically, to a cleaning device. Background Technology

[0002] Currently, cleaning robots include robotic vacuum cleaners, floor mopping robots (robots with mopping functions but no sweeping function), dual-disc robotic vacuum cleaners, and floor scrubbers. Some cleaning robots are equipped with a mop, which allows them to perform wet cleaning by contacting the mop with the surface to be cleaned (such as the floor or tabletop). During the cleaning process, the mop can swing relative to the main body to reduce cleaning dead spots and improve the cleaning effect.

[0003] During the wet cleaning process, the cleaning equipment uses a water outlet to soak the mop with liquid from the water tank. However, as the mop moves between its retracted and expanded positions to clean along the edges of the environment, liquid can easily splash outside the mop and onto the floor, walls, furniture, and other objects, affecting the cleaning effect and resulting in a poor user experience. Utility Model Content

[0004] The main objective of this application is to provide a cleaning device to solve the problem mentioned in the background art where liquid easily splashes outside the mop during the mop's movement and flows onto objects such as the floor, walls, and furniture.

[0005] According to one aspect of this application, a cleaning device is provided, comprising:

[0006] main body;

[0007] A cleaning component is disposed at the bottom of the main body and has an inward-retracted state and an outward-expanded state. When the cleaning component is in the outward-expanded state, the portion of the cleaning component located outside the edge contour of the main body is larger than the portion of the cleaning component located outside the edge contour of the main body when the cleaning component is in the inward-retracted state.

[0008] The cleaning assembly includes a support and a flexible cleaning component, wherein the flexible cleaning component is disposed on the surface of the support away from the main body along the height direction of the main body;

[0009] A liquid replenishment assembly, the liquid replenishment assembly including at least one first water outlet, the at least one first water outlet being disposed on the bracket, the liquid replenishment assembly being used to flow liquid through at least one first water outlet onto the flexible cleaning component.

[0010] Furthermore, the support is also provided with a flow guiding structure, which is connected to at least one of the first water outlets, and the liquid replenishment component includes:

[0011] A liquid supply component, wherein the liquid supply component is disposed on the main body;

[0012] A flow guiding component is disposed between the liquid supply component and the support and connects the liquid supply component and the flow guiding structure.

[0013] Furthermore, the flow guiding structure includes a first groove disposed on the bracket, the first groove communicating with at least one of the first outlets; and / or,

[0014] Along the height direction of the main body, the first water outlet includes a through hole structure disposed on the support.

[0015] Furthermore, along the height direction of the main body, the flow guiding structure is disposed on the side of the support close to the main body, and the flow guiding component includes:

[0016] The liquid outlet is located between the main body and the cleaning component along the height direction of the main body. During the process of the cleaning component moving from one of the retracted state and the outward expansion state to the other, the liquid outlet can move relative to the main body with the cleaning component. The liquid outlet is provided with a second water outlet, which is connected to the liquid supply component. Along the height direction of the main body, the projected outer contour of the second water outlet is at least partially located within the projected outer contour of the flow guiding structure.

[0017] Furthermore, the cleaning device also includes a drive assembly, the drive assembly comprising:

[0018] A driving component, wherein the driving component is disposed on the main body;

[0019] A drive shaft is connected to the drive component and can rotate in a first clockwise direction under the drive component; the bracket is connected to the end of the drive shaft away from the drive component.

[0020] Wherein, along the radial direction of the drive shaft, the flow guiding structure is located between the drive shaft and the first outlet; and / or,

[0021] The fluid replenishment component further includes at least one water inlet, and at least one water inlet is disposed on the drive component and communicates with at least one of the first water outlets.

[0022] Furthermore, the flow guiding structure is arranged in a ring shape around the circumference of the drive shaft; and / or,

[0023] The first water outlet includes multiple outlets, which are arranged circumferentially along the drive shaft, and each outlet is connected to the first groove.

[0024] Furthermore, the support is also provided with a water outlet channel, which includes at least one channel. The at least one water outlet channel is disposed on the support and located between the flow guiding structure and the first water outlet, and the at least one water outlet channel connects the flow guiding structure and the first water outlet.

[0025] Furthermore, the first water outlet includes multiple outlets, which are spaced apart circumferentially along the support. The water outlet channel includes multiple channels arranged circumferentially along the support. Each first water outlet communicates with at least one water outlet channel; and / or,

[0026] The water outlet channel includes a second groove along the height direction of the main body. The second groove is located on the surface of the bracket near the main body and is recessed in a direction away from the main body.

[0027] Furthermore, during the process of the cleaning component moving from one of the retracted state and the outward expansion state to the other, the cleaning component drives the liquid outlet to move synchronously so that the liquid outlet remains stationary relative to the cleaning component; and / or,

[0028] Along the height direction of the main body, during the process of the cleaning component moving from one of the retracted state and the outward expansion state to the other, the cleaning component can perform a first rotational movement relative to the liquid outlet in a first clockwise direction;

[0029] Wherein, along the height direction of the main body, the flow guiding structure has a first projected outer contour on the liquid outlet, and during the process of the cleaning component moving from one of the retracted state and the outward expansion state to the other, the second water outlet is always located within the first projected outer contour; and / or,

[0030] The flow guiding structure is arranged in a ring shape along the first clockwise direction.

[0031] Furthermore, along the height direction of the main body, a first clearance hole is provided through the main body, and the cleaning component has a first distance to move from one of the retracted state and the outward expansion state to the other. The length of the first clearance hole is not less than the first distance. The cleaning device further includes:

[0032] A drive assembly includes a drive component and a transmission shaft. Along the height direction of the main body, the drive component is located on the side of the main body away from the cleaning component and can move relative to the main body with the cleaning component. The transmission shaft is connected to the drive component and can rotate in a first clockwise direction under the drive of the drive component. The liquid outlet is located between the cleaning component and the drive component and covers the first clearance hole. The end of the transmission shaft away from the drive component passes through the first clearance hole and the liquid outlet and is connected to the bracket. The second water outlet is arranged opposite to the first clearance hole.

[0033] In this application, the cleaning device includes a main body, a cleaning component, and a liquid replenishment component. The cleaning component is installed at the bottom of the main body and has an inward-retracted state and an outward-expanded state. At least one first outlet of the liquid replenishment component is disposed on a support. The liquid replenishment component is used to flow liquid through at least one first outlet to a flexible cleaning element to wet the flexible cleaning element. Thus, as the cleaning component moves from one of the inward-retracted state to the other, the first outlet moves with the cleaning component. Therefore, the position of the first outlet supplying liquid to the flexible cleaning element relative to the flexible cleaning element remains unchanged. The liquid flowing out of the first outlet can flow directly onto the flexible cleaning element without dripping onto other parts of the cleaning component, avoiding liquid splashing onto the floor, walls, furniture, etc., and ensuring the water content of the flexible cleaning element, reducing the waste of liquid resources. Attached Figure Description

[0034] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0035] Figure 1 This is a schematic diagram of the structure of a cleaning device disclosed in an embodiment of the present invention;

[0036] Figure 2 for Figure 1 A schematic diagram of the decomposition process;

[0037] Figure 3 for Figure 2 A schematic diagram of the structure of the cleaning component;

[0038] Figure 4 A schematic diagram showing the assembly of the cleaning components, drive components, and liquid outlet;

[0039] Figure 5 for Figure 4 An exploded view of the drive assembly and the sealing plate;

[0040] Figure 6This is an exploded view of the cleaning and driving components and the liquid outlet.

[0041] The above figures include the following reference numerals:

[0042] 10. Main body; 11. First clearance hole; 20. Cleaning component; 21. Support; 210. Flow guiding structure; 211. Tray; 212. Outer ring; 22. Flexible cleaning component; 30. Liquid replenishment component; 301. First water outlet; 302. Water inlet; 31. Liquid supply component; 311. Water tank; 312. Hose; 32. Flow guiding component; 321. First groove; 322. Liquid outlet; 320. Second water outlet; 221 1. Sealing plate; 2211. Second clearance hole; 2212. Second connecting hole; 323. Water outlet channel; 231. Second groove; 40. Drive assembly; 41. Drive component; 411. Housing; 4111. First connecting hole; 412. Motor; 42. Drive shaft; 50. Connecting assembly; 51. Connecting seat; 52. Connecting shaft; 521. First axis; 60. Limiting structure; 61. First limiting post; 62. Second limiting post. Detailed Implementation

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0045] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0046] The mop of the cleaning equipment can move between an inward-retracting state and an outward-expanding state to switch positions for edge cleaning or normal cleaning of the surface to be cleaned. During the movement of the mop from one of these states, liquid can easily flow onto the mop holder 21. This liquid can also collide with the holder and splash onto the floor, walls, furniture (such as the bottom of cabinets and table legs), etc. While the splashed liquid can be cleaned with a secondary cleaning process, it increases the cleaning burden on the equipment and reduces cleaning efficiency. If walls are constantly splashed with water, it will not only reduce the aesthetics of the surface but also affect the durability of the wall surface, potentially leading to peeling over time. Secondly, some furniture is prone to rotting after being soaked in water for a long time, reducing its lifespan and resulting in a poor user experience. Furthermore, it can reduce the amount of liquid received by the mop, lowering its moisture content.

[0047] To address the aforementioned problems, the main objective of this embodiment is to provide a cleaning device. Please refer to [link / reference needed]. Figures 1 to 5 The cleaning device includes a main body 10, a cleaning component 20, and a liquid replenishment component 30. The cleaning component 20 is located at the bottom of the main body 10 and has an inward-facing state and an outward-facing state. When the cleaning component 20 is in the outward-facing state, the portion outside the edge contour of the main body 10 is larger than the portion outside the edge contour of the main body 10 when the cleaning component 20 is in the inward-facing state. When the cleaning component 20 is in the inward-facing state, the entire cleaning component 20 can be located within the edge contour of the main body 10, or at least partially outside the edge contour of the main body 10; this embodiment does not impose a unique limitation on this.

[0048] The cleaning component 20 includes a support 21 and a flexible cleaning element 22. Along the height direction of the main body 10 (e.g., ... Figure 1 (In the direction indicated by the middle arrow X), the flexible cleaning component 22 is disposed on the surface of the support 21 away from the main body 10. The flexible cleaning component 22 may include a fiber mop, a sponge mop, etc. The liquid replenishment assembly 30 includes at least one first water outlet 301, which is disposed on the support 21. The liquid replenishment assembly 30 is used to flow liquid through at least one first water outlet 301 to the flexible cleaning component 22.

[0049] During the process of the cleaning component 20 moving from one of the retracted state and the outward expansion state to the other, the first water outlet 301 moves with the movement of the support 21 of the cleaning component 20. The liquid coming out of the first water outlet 301 flows directly onto the flexible cleaning component 22, and the liquid is not easy to spill or splash into the space outside the cleaning component 20.

[0050] As can be seen, in this embodiment, the cleaning device includes a main body 10, a cleaning component 20, and a liquid replenishment component 30. The cleaning component 20 is installed at the bottom of the main body 10 and has an inward-retracted state and an outward-expanded state. At least one first outlet 301 of the liquid replenishment component 30 is disposed on the bracket 21. The liquid replenishment component 30 is used to flow liquid through at least one first outlet 301 to the flexible cleaning element 22 to wet the flexible cleaning element 22. Thus, as the cleaning component 20 moves from one of the inward-retracted state and the outward-expanded state to the other, the first outlet 301 moves with the cleaning component 20. Therefore, the position of the first outlet 301 supplying liquid to the flexible cleaning element 22 relative to the cleaning component 20, especially the flexible cleaning element 22, remains unchanged. The liquid flowing out of the first outlet 301 can flow directly onto the flexible cleaning element 22 without dripping onto other parts of the cleaning component 20, avoiding liquid splashing onto the ground, walls, furniture, etc., and ensuring the water content of the flexible cleaning element 22, reducing the waste of liquid resources.

[0051] The support 21 is also provided with a flow guiding structure 210, which is connected to at least one first water outlet 301. The liquid replenishment assembly 30 includes a liquid supply component 31 and a flow guiding component 32. The liquid supply component 31 is located on the main body 10. The flow guiding component 32 is located between the liquid supply component 31 and the support 21 and connects the liquid supply component 31 and the flow guiding structure 210. Thus, in this embodiment, the liquid supplied by the liquid supply component 31 is directly guided to the flow guiding structure 210 on the support 21 through the flow guiding component 32, and then guided to at least one first water outlet 301 through the flow guiding structure 210, so that the liquid can be guided to the flexible cleaning component 22 through the first water outlet 301. Both the flow guiding structure 210 and the first water outlet 301 can move with the movement of the cleaning assembly 20, which can prevent liquid from splashing into the environment outside the cleaning assembly 20.

[0052] During the process of driving the cleaning component 20 to either an inward or outward state, the first water outlet 301 moves along with the cleaning component 20. Furthermore, regardless of whether the cleaning component 20 continues its first clockwise rotation (i.e., the cleaning component 20 rotates to efficiently clean the surface), the water in the first water outlet 301 is less likely to splash onto the floor, walls, or furniture, ensuring that the flexible cleaning component 22 receives sufficient liquid and increasing its moisture content. The first clockwise direction is as follows: Figure 1 The direction indicated by arrow S1 shown.

[0053] In this embodiment, the flow guiding component 32 can be a connecting pipe, which may include one or a combination of connecting pipes (such as flexible hose 312, metal pipe or other rigid pipes, etc.), channels set in the main body, etc.

[0054] In some embodiments, the flow guiding structure 210 can be a liquid storage tank disposed within a protruding column on the side of the support 21 near the main body 10. The liquid storage tank can be connected to at least one first water outlet 301 via a connecting pipe or an opening. Along the height direction of the main body 10, at least one first water outlet 301 can be located at the bottom of the liquid storage tank. A connecting port or connecting pipe can be provided between the bottom of the liquid storage tank and the first water outlet 301 to supply water to the first water outlet 301.

[0055] In this embodiment, the flow guiding structure 210 may include a first groove 321, which is disposed on the bracket 21. The first groove may be located directly above the bracket 21 near the main body 10, or it may be located to the side of the bracket 21. Here, this embodiment does not limit the specific location of the first groove 321. The first groove 321 communicates with at least one first water outlet 301. The first groove 321 may be directly connected to the liquid supply component 31 through a connecting pipe (such as a hose 312). In this case, the hose 312 may be placed inside the first groove 321, and the first groove 321 may rotate relative to the hose 312 with the cleaning component 20, thereby reducing the complexity of the communication structure between the first water outlet 301 and the liquid supply component 31.

[0056] The first groove 321 can hold a certain amount of liquid to provide the necessary liquid for wetting the flexible cleaning element 22 to at least one first water outlet 301. During the movement of the cleaning assembly 20 from either an inward or outward state to the other, the first groove 321 can also move with the support 21 of the cleaning assembly 20, preventing liquid flowing from the first groove 321 to the first water outlet 301 from splashing into spaces outside the cleaning assembly 20. Furthermore, since the first groove 321 can temporarily store water, the wettability of the flexible cleaning element 22 can be maintained through the temporarily stored liquid during the intermittent operation of the liquid supply component 31, preventing the flexible cleaning element 22 from being affected by alternating wet and dry conditions during rotation, thus improving the cleaning effect of the cleaning assembly 20. The first groove 321 also reduces the overall weight of the support 21, thereby reducing the driving pressure of the drive component on the support 21.

[0057] The first water outlet 301 on the bracket 21 may include at least one of the following structures: a spray head, a nozzle, a water pipe connector, etc. Along the height direction of the main body 10, the first water outlet 301 includes a through-hole structure that extends through the bracket 21. Thus, liquid from the replenishment component 30 can flow directly along the through-hole structure to the flexible cleaning component 22, fully wetting it. Furthermore, the first water outlet 301 with this through-hole structure is easy to manufacture and can reduce the overall weight of the bracket 21, avoiding overload or high failure rates due to fatigue of the power source driving the bracket 21 (such as the drive component 40 mentioned below).

[0058] Along the height direction of the main body 10, a flow guiding structure 210 (such as a first groove 321) is disposed on the side of the support 21 near the main body 10. The first groove can be a groove structure disposed within a protruding post on the side of the support 21 near the main body 10. The groove structure can be connected to the first water outlet 301 through a connecting pipe or an opening. Along the height direction of the main body 10, the first water outlet 301 can be located at the bottom of the first groove 321. A connecting port is provided between the bottom of the first groove 321 and the first water outlet 301 to supply water to the flexible cleaning component 22. The first groove 321 is preferably a structure recessed in the direction away from the main body 10 on the support 21. This structure of the first groove 321 is simple and convenient to open. It only needs to ensure that the support 21 has a certain thickness along the height direction of the main body 10 to open the first groove 321, and it will not increase the volume and weight of the support 21, reduce the driving burden of the cleaning equipment on the support 21, and avoid overload of the power source.

[0059] To ensure that the first groove 321 can be replenished with liquid at any time without liquid splashing out, such as Figure 2 As shown, the flow guiding component 32 in this embodiment also includes a liquid outlet 322. Along the height direction of the main body 10, the liquid outlet 322 is disposed between the main body 10 and the cleaning component 20. During the movement of the cleaning component 20 from one of its retracted state and its expanded state to the other, the liquid outlet 322 can move relative to the main body 10 along with the cleaning component 20. The liquid outlet 322 is provided with a second water outlet 320, which communicates with the liquid supply component 31. Along the height direction of the main body 10, the projected outer contour of the second water outlet 320 is at least partially located within the projected outer contour of the first groove 321, so that the liquid provided by the liquid supply component 31 drips into the first groove 321. Alternatively, the projected outer contour of the second water outlet 320 can also be entirely located within the projected outer contour of the first groove 321, thereby further ensuring that the liquid exiting from the second water outlet 320 can completely flow into the first groove 321.

[0060] Since the liquid outlet 322 can move with the outward or inward movement of the cleaning assembly 20, the second water outlet 320 is connected to the first groove 321. Along the height direction of the main body 10, the projected outer contour of the second water outlet 320 is at least partially located within the projected outer contour of the first groove 321. When the cleaning assembly 20 moves in the transition position between the inward and outward states, the second water outlet 320 and the first groove 321 move synchronously. Along the height direction of the main body 10, the position of the second water outlet 320 relative to the first groove 321 remains unchanged, that is, the second water outlet 320 is always corresponding to the first groove 321. The liquid flowing out of the second water outlet 320 can flow directly onto the first groove 321. The liquid will not be splashed out by the collision of the cleaning assembly 20 due to dripping to other positions of the cleaning assembly 20, effectively preventing liquid from splashing onto the ground or walls and other obstacles outside the bracket 21. Therefore, the liquid supplied to the cleaning component 20 through the liquid outlet 322 not only prevents it from falling onto the ground during the swinging of the cleaning component 20, but also reduces the installation of pipes required to connect the liquid replenishment component 30 to the first groove 321, thus lowering the cost of the cleaning equipment. Secondly, it ensures the water content of the flexible cleaning component 22 while enabling the cleaning equipment to achieve better cleaning results, improving the user experience.

[0061] like Figure 2 as well as Figure 4 As shown, the cleaning device in this embodiment also includes a drive assembly 40, which includes a drive component 41 and a transmission shaft 42. The drive component 41 is located on the main body 10. The transmission shaft 42 is connected to the drive component 41 and can rotate in a first clockwise direction under the drive of the drive component 41. The bracket 21 is connected to the end of the transmission shaft 42 away from the drive component 41. Along the radial direction of the transmission shaft 42, the flow guiding structure 210 (such as the first groove 321) is located between the transmission shaft 42 and the first water outlet 301. Thus, the placement of the flow guiding structure 210 utilizes the empty space on the bracket 21 between the first water outlet 301 and the transmission shaft 42, improving the space utilization of the bracket 21. Moreover, during the rotation of the bracket 21 driven by the transmission shaft 42, since the flow guiding structure 210 (such as the first groove 321) is closer to the transmission shaft 42, the centrifugal force on the flow guiding structure 210 can be reduced, and the water flow in the flow guiding structure 210 is not easily thrown out, ensuring that the water can stably penetrate to the flexible cleaning component 22 through the through hole. When the flow guiding structure 210 is the first groove 321, the first groove 321 acts as a "water reservoir" to buffer the water flow during the rotation of the support 21. Even if the support 21 moves or turns at high speed between the inward and outward states, it can still continuously and evenly supply water through the first water outlet 301, avoiding local dryness or excessive wetness of the flexible cleaning part 22.

[0062] The flow guiding structure 210 is arranged in a ring around the circumference of the drive shaft 42, just as the first groove 321 is arranged in a ring around the circumference of the drive shaft 42. The flow guiding structure 210 is a ring structure, which not only allows it to temporarily store more water, but also ensures that the second water outlet 320 on the water outlet 322 is always aligned with the flow guiding structure 210 (such as the first groove 321) when the cleaning component 20 moves to the inward or outward state and drives the liquid outlet 322 to move, regardless of whether the drive shaft 42 drives the cleaning component 20 to rotate. This ensures that the second water outlet 320 on the liquid outlet 322 is always aligned with the flow guiding structure 210 (such as the first groove 321), so that the liquid is continuously supplied to the flow guiding structure 210 through the second water outlet 320, while the water coming out of the second water outlet 320 is not likely to drip onto other parts of the bracket 21 and splash out.

[0063] In some embodiments, the replenishment component 30 further includes at least one inlet 302, which is disposed on the drive component 41 and communicates with at least one first outlet 301. When the at least one inlet 302 is located on the drive component 41, the inlet 302 moves together with the drive component 41 and the cleaning component 20 between an inward state and an outward state. One end of the inlet 302 is connected to the water tank 311 of the liquid supply component 31 through a connecting pipe (e.g., through another flexible hose 312), and the other end is connected to the first outlet 301 through a connecting pipe (specifically, it can be connected to the flow guiding structure 210, thereby achieving communication with the first outlet 301). This makes the communication between the replenishment component 30 and the first outlet 301 more convenient and easier to assemble. When the flow guiding structure 210 includes a first groove 321, the hose 312 that connects the inlet 302 and the first outlet 301 can be specifically installed in the first groove 321 and the first groove 321 can rotate relative to the hose 312 with the cleaning component 20, thereby realizing the connection between the inlet 302 and the first outlet 301, and without increasing the complexity of the pipe connection due to the rotation of the cleaning component 20.

[0064] When the drive component 41 includes a housing 411, the water inlet 302 can be disposed on the outer wall surface of the housing 411 or on the inner wall surface of the housing 411. The specific placement location is not limited in this embodiment. The structure of the water inlet 302 may include at least one of the following: nozzle, spray head, connector, or channel structure.

[0065] In this embodiment, the support 21 may include a tray 211 and an outer ring 212. The outer ring 212 is disposed on the outer periphery of the tray 211 and is made of soft rubber. It can support and tension the flexible cleaning component and prevent the support from damaging walls, furniture, etc. when the cleaning component cleans along the edge. The first water outlet 301 may be disposed on at least one of the tray 211 and the outer ring 212, or it may be disposed only on the tray 211. This embodiment does not impose a limitation on this. The first groove 321 is disposed on the tray 211 and located in the middle of the tray 211.

[0066] Multiple first water outlets 301 are arranged circumferentially along the drive shaft 42. Each first water outlet 301 is connected to a first groove 321. The multiple first water outlets 301 and the first groove 321 can be connected via a connecting pipe or a connecting port. Regardless of the connection method, the arrangement of multiple first water outlets 301 along the circumferential direction of the drive shaft 42 ensures that all parts of the flexible cleaning component 22 along the circumference of the drive shaft 42 can be simultaneously wetted, improving the wettability of the flexible cleaning component 22. When the first water outlet 301 is a nozzle structure, it can be spaced apart or adjacent to each other along the circumference of the drive shaft 42; this embodiment is not limited to a single arrangement. When the first water outlet 301 is a through-hole structure, the multiple first water outlets 301 can be arranged spaced apart along the circumferential direction of the drive shaft 42. This reduces the weight of the support 21 while ensuring that the structural strength of the support 21 remains ideal.

[0067] In this embodiment, when the first groove 321 is an annular structure and the first water outlet 301 also includes multiple outlets, it can ensure the consistency of water pressure in the water outlet channel 323 between each first water outlet 301 and the first groove 321, so that the liquid in the first groove 321 is evenly distributed to the flexible cleaning component 22 in 360 degrees.

[0068] In this embodiment, the support 21 is also provided with a water outlet channel 323. The water outlet channel 323 includes at least one channel, which is disposed on the support 21 and located between the guide structure 210 (such as the first groove 321) and the first water outlet 301. The at least one water outlet channel 323 connects the guide structure 210 and the first water outlet 301. During the process of the cleaning component 20 moving to the retracted state or the outward expansion state, the water outlet channel 323 moves with the movement of the support 21, and the liquid is not easily splashed out, thereby stably providing sufficient water to the flexible cleaning component 22, and preventing water droplets from being splashed onto objects such as the ground, walls, and furniture.

[0069] Multiple first water outlets 301 are arranged at intervals along the circumference of the support 21. Multiple water outlet channels 323 are also arranged along the circumference of the support 21, and each first water outlet 301 is connected to at least one water outlet channel 323. Thus, liquid is supplied to the multiple first water outlets 301 through the water outlet channels 323, ensuring that all parts of the flexible cleaning component 22 along the circumference of the drive shaft 42 are simultaneously wetted, thereby improving the wettability of the flexible cleaning component 22.

[0070] In some embodiments, the water outlet channel 323 can be a closed channel connecting the first groove 321 and the first outlet 301. During the rotation and / or expansion and contraction of the support 21, the risk of liquid splashing or spilling can be further reduced, and the effective utilization rate of liquid in the first groove 321 can be improved.

[0071] The water outlet channel 323 includes a second groove 231. Along the height direction of the main body 10, the second groove 231 is located on the surface of the support 21 near the main body 10 and is recessed in a direction away from the main body 10. The second groove 231 is simple and convenient to construct. Moreover, when the second water outlet 320 stops supplying water to the first groove 321, during the rotation of the support 21, the liquid located at the bottom of the first groove 321 can flow into the second groove 231 under the action of centrifugal force, and then be guided into the first water outlet 301 through the second groove 231, thereby improving the utilization rate of the liquid and avoiding the situation where the flexible cleaning part 22 cannot be wetted for a long time.

[0072] During the process of the cleaning component 20 moving from one of the retracted state and the outward expansion state to the other, the cleaning component 20 drives the liquid outlet 322 to move synchronously so that the liquid outlet 322 is stationary relative to the cleaning component 20. Thus, during the process of the cleaning component expanding or retracting, the movement of the liquid outlet 322 will not be ahead or behind the cleaning component 20, thereby ensuring that the second outlet 320 can supply liquid to the first groove 321 at any time, and that the liquid can splash out due to the collision with the bracket 21.

[0073] The cleaning component 20 has a first distance to move from one of the retracted state and the outward expansion state to the other. When the cleaning component 20 moves from one of the retracted state and the outward expansion state to the other, the liquid outlet 322 has a second distance to move with the cleaning component 20, and the second distance is equal to the first distance. That is to say, during the process of the cleaning component 20 moving from one of the retracted state and the outward expansion state to the other, the liquid outlet 322 is relatively stationary with respect to the cleaning component 20. The liquid outlet 322 will not lag or advance relative to the cleaning component 20, thereby ensuring that the second water outlet 320 can always be aligned with the first groove 321, further reducing the risk of water splashing out of the second water outlet 320.

[0074] In this embodiment, when the flow guiding structure 210 includes the first groove 321, the first groove 321 is disposed on the side of the bracket 21 near the main body 10 and recessed in a direction away from the main body 10 along the height direction of the main body 10. During the process of the cleaning component 20 moving from one of the retracted state and the outward expansion state to the other, the cleaning component 20 can perform a first rotational movement relative to the liquid outlet 322 in a first clockwise direction; that is, the cleaning component 20 will rotate during the process of moving to the outward expansion state or the retracted state. Wherein, along the height direction of the main body 10, the flow guiding structure 210 (such as the first groove 321) has a first projected outer contour on the liquid outlet 322. During the process of the cleaning component 20 moving from one of the retracted state and the outward expansion state to the other, the second outlet 320 is always located within the first projected outer contour. Therefore, even if the first groove 321 is not an annular structure arranged around the drive shaft 42, it can be ensured that the second outlet 320 is always aligned with the first groove 321 when the cleaning component 20 rotates relative to the second outlet 320. Of course, when the flow guiding structure 210 (such as the first groove 321) is arranged in a ring shape along the first clockwise direction, it can be further ensured that the second outlet 320 will not deviate from the flow guiding structure 210.

[0075] Along the height direction of the main body 10, a first clearance hole 11 is provided through the main body 10. The cleaning component 20 has a first distance to move from one of the retracted state and the outward expansion state to the other. The length of the first clearance hole 11 is not less than the first distance. The cleaning device also includes a drive component 40, which includes a drive component 41 and a transmission shaft 42. Along the height direction of the main body 10, the drive component 41 is located on the side of the main body 10 away from the cleaning component 20 and can move relative to the main body 10 with the cleaning component 20. The transmission shaft 42 is connected to the drive component 41 and can rotate in a first clockwise direction under the drive of the drive component 41. The liquid outlet 322 is located between the cleaning component 20 and the drive component 41 and covers the first clearance hole 11. The end of the transmission shaft 42 away from the drive component 41 passes through the first clearance hole 11 and the liquid outlet 322 and is connected to the bracket 21. In other words, in addition to supplying liquid to the first groove 321 via the second outlet 320, the liquid outlet 322 can also seal the first clearance hole 11, preventing liquid from splashing into the main body 10 through the first clearance hole 11 and affecting the drive component 41 and other devices, thus ensuring the cleanliness and dryness of the inside of the cleaning equipment. The second outlet 320 is arranged opposite to the first clearance hole 11, so when the liquid outlet 322 is located inside the main body 10, there is no need to open an additional hole at the bottom of the main body 10 to communicate with the second outlet 320, reducing the processing steps of the main body 10 and lowering the assembly difficulty of the main body 10.

[0076] In this embodiment, the liquid outlet 322 includes a sealing plate 221, on which a second clearance hole 2211 is provided. The second clearance hole 2211 is opposite to and communicates with the first clearance hole 11. Along the height direction of the main body 10, the projected outer contour of the first clearance hole 11 is located within the projected outer contour of the sealing plate 221, so that the sealing plate 221 can seal the first clearance hole 11. The drive shaft 42 passes through the first clearance hole 11 and the second clearance hole 2211 and is connected to the cleaning assembly 20. Along the radial direction of the drive shaft 42, the second water outlet 320 is located on one side of the second clearance hole 2211 and is spaced apart from the second clearance hole 2211, so that the second water outlet 320 can always supply water to the first groove 321. During the movement of the cleaning component 20 from one of the retracted state and the outward expansion state to the other, the cleaning component 20 drives the drive shaft 42 to move, and the drive shaft 42 drives the sealing plate 221 to move, thereby ensuring that the second water outlet 320 provided on the sealing plate 221 can move synchronously with the first groove 321 (as mentioned below, synchronous second rotational movement). The first clearance hole 11 can be an arc-shaped strip hole structure extending in the first clockwise direction to better provide a movement path for the second rotational movement of the cleaning component 20.

[0077] Cleaning component 20 can rotate in the second clockwise direction (e.g.) Figure 1 The drive assembly 40 and the sealing plate 221, driven by the cleaning assembly 20, rotate around the first axis 521 in the direction indicated by the middle arrow S2 to move from one of the inward or outward states to the other. The second clockwise direction is opposite to or the same as the first clockwise direction. Along the radial direction of the drive shaft 42, there is an installation gap between the second clearance hole 2211 and the first axis 521. This allows the drive shaft 42 of the drive assembly 40 to stably drive the sealing plate 221 in a second rotational motion, ensuring that the second outlet 320 is aligned with the first groove 321 during this second rotational motion, preventing water from splashing out of the second outlet 320.

[0078] In some embodiments, when the cleaning component 20 performs a second rotational movement to switch between an inward and outward state, this movement can be driven by an additional drive mechanism. However, adding such a mechanism not only increases the cost of the cleaning equipment but also increases its assembly difficulty. Therefore, in this embodiment, the cleaning equipment can be configured as follows:

[0079] When the cleaning component 20 rotates in the first clockwise direction, it is subjected to a frictional torque in the second clockwise direction, causing the cleaning component 20 to drive the drive component 40 to swing outward in the second clockwise direction. While in the outward-expanding state, the cleaning component 20 continues to rotate in the first clockwise direction for edge cleaning. At this time, the second clockwise direction is opposite to the first clockwise direction; for example, if the first clockwise direction is counterclockwise, the second clockwise direction is clockwise. When the cleaning equipment cleans the ground, the cleaning component 20 is in contact with the ground. During the process of the drive component 40 driving the cleaning component 20 to rotate in the first clockwise direction, the ground applies a frictional force to the cleaning component 20 in the second clockwise direction, causing the cleaning component 20 to swing outward relative to the main body 10 and causing the second water outlet 320 on the liquid outlet 322 to also rotate in the second clockwise direction relative to the main body 10. When the cleaning component 20 rotates in the second clockwise direction, it is subjected to a frictional torque in the first clockwise direction, which causes the cleaning component 20 to drive the drive component 40 and the liquid outlet 322 to perform a second rotational motion in the first clockwise direction to the retracted state. When it returns to the retracted state, the cleaning component 20 continues to rotate in the second clockwise direction to perform the cleaning work.

[0080] During the switching between the inward and outward states by the frictional torque acting in the opposite direction, the first groove 321 and the second outlet 320 both rotate relative to the main body 10 in a second clockwise direction. The second outlet 320 is always aligned with the first groove 321, allowing the liquid flowing from the second outlet 320 to flow into the first groove 321, preventing it from falling onto the ground. Simultaneously, during the second rotation, the rotational speed of the cleaning component 20 decreases due to friction. When the water outlet channel 323 is the structure of the second groove 231 and the first groove 321 is the structure of the first groove 321, the liquid in the first groove 321 can be more stably maintained within the first groove 321 and flows stably along the second groove 231 to the first outlet 301, further ensuring the water content of the flexible cleaning component 22 and preventing liquid overflow. Moreover, the transition from the second rotational motion state to the first rotational motion state of the cleaning component 20 is smooth, and the liquid in the first groove 321 will not overflow due to a large impact.

[0081] When cleaning equipment is configured with the above-mentioned expansion or retraction methods, there is no need to add additional power actuators, which reduces the complexity and cost of the cleaning equipment.

[0082] In some embodiments, the cleaning assembly 20 can perform a second rotational movement in a second clockwise direction to move from one of an inward state and an outward state to the other. The cleaning device also includes a connecting assembly 50, which is connected to the main body 10 along the radial direction of the drive shaft 42 and is located on the side of the drive member 41 away from the drive shaft 42. The liquid outlet 322 and the drive member 41 are respectively connected to the connecting assembly 50, and both the liquid outlet 322 and the drive member 41 can perform a second rotational movement relative to the connecting assembly 50 under the drive of the cleaning assembly 20. In this embodiment, the liquid outlet 322 and the driving component 41 are rotatably connected to the connecting assembly 50, and the connecting assembly 50 is connected to the main body 10. Therefore, during the second rotational movement of the liquid outlet 322 and the driving component 41 driven by the cleaning assembly 20, the stability of the liquid outlet 322 and the driving component 41 during the movement can be improved, and the shaking of the liquid outlet 322 and the driving component 41 can be avoided. This improves the synchronization between the liquid outlet 322 and the cleaning assembly 20 during the second rotational movement, thereby improving the accuracy of the relative position between the second water outlet 320 and the first groove 321, and preventing the second water outlet 320 from deviating from the first groove 321.

[0083] In this embodiment, the connecting component 50 includes a connecting seat 51 and a connecting shaft 52. Along the height direction of the main body 10, the connecting seat 51 is located on the side of the main body 10 away from the cleaning component 20 and is fixedly connected to the main body 10, forming an installation space between the connecting seat 51 and the main body 10. Along the height direction of the main body 10, one end of the connecting shaft 52 is fixedly connected to the connecting seat 51, and the other end of the connecting shaft 52 extends from the installation space to the side of the main body 10 near the cleaning component 20. The driving component 41 is connected to the portion of the connecting shaft 52 located in the installation space and can perform a second rotational movement around the axis of the connecting shaft 52. Along the height direction of the main body 10, the liquid outlet 322 is located on the side of the main body 10 near the cleaning component 20, and the liquid outlet 322 is connected to the end of the connecting shaft 52 away from the connecting seat 51 and can perform a second rotational movement around the axis of the connecting shaft 52. In this embodiment, the first axis 521 mentioned above is the axis of the connecting shaft 52.

[0084] In this embodiment, by connecting the connecting shaft 52 to the connecting seat 51 fixed on the main body 10, and then rotatably connecting the driving component 41 and the liquid outlet component 322 (i.e., the sealing plate 221) to the connecting shaft 52 respectively, it can be ensured that the liquid outlet component 322 and the driving component 40 stably perform the second rotational movement under the drive of the cleaning component 20, and the assembly difficulty is low.

[0085] Among them, such as Figure 5As shown, the drive component 41 in this embodiment includes a housing 411, a motor 412, and a gear system. Along the height direction of the main body 10, the housing 411 has a mounting groove on the side near the liquid outlet 322, and the motor 412 is mounted in the mounting groove. The housing 411 also has a mounting cavity, and the gear system is located in the mounting cavity. The output shaft of the motor 412 is located on the side of the motor 412 near the mounting cavity and is connected to the gear system for transmission. The end of the transmission shaft 42 away from the bracket 21 is connected to the side of the gear system away from the output shaft for transmission.

[0086] like Figure 6 As shown, a first connecting hole 4111 is provided on the side of the housing 411 near the connecting seat 51. The first connecting hole 4111 is sleeved on the connecting shaft 52 and has a clearance fit with the connecting shaft 52, thereby realizing the rotational connection between the drive component 41 and the connecting shaft 52, which is efficient and convenient for assembly. The part of the connecting shaft 52 that passes through the main body 10 near the cleaning component 20 is provided with an outer flange. The liquid outlet 322 (or sealing plate 221) is provided with a second connecting hole 2212. The second connecting hole 2212 and the second clearance hole 2211 are arranged radially at intervals along the drive shaft 42. The second connecting hole 2212 is sleeved on the side of the outer flange near the bracket 21. The pin with the outer flange is fixedly connected to the end of the connecting shaft 52 near the bracket 21, and the outer flange at the bottom of the pin restricts the liquid outlet 322 to the connecting shaft 52.

[0087] A limiting structure 60 is also provided between the drive component 41 and the liquid outlet 322. The limiting structure 60 is located on one side of the drive shaft 42 along its own radial direction and is opposite to the first clearance hole 11. Along the radial direction of the drive shaft 42, the limiting structure 60 is used to restrict the liquid outlet 322 to a stationary state relative to the drive shaft 42. Thus, after the drive shaft 42 passes through the second clearance hole 2211 of the liquid outlet 322 and connects to the cleaning assembly 20, during the second rotational movement of the drive shaft 42 and the liquid outlet 322 driven by the cleaning assembly 20, the liquid outlet 322 will not wobble relative to the drive shaft 42 along the radial direction of the drive shaft 42. Even if there is a large gap between the drive shaft 42 and the second clearance hole 2211, it can be ensured that the liquid outlet 322 will not wobble relative to the drive shaft 42, thereby ensuring that the liquid outlet 322 and the cleaning assembly 20 can perform the second rotational movement synchronously.

[0088] like Figure 5As shown, the limiting structure 60 includes a first limiting post 61 and a second limiting post 62. Along the height direction of the main body 10, the first limiting post 61 is located on the side of the driving component 41 near the liquid outlet 322 and is positioned opposite to the liquid outlet 322. Along the height direction of the main body 10, the first limiting post 61 has a first limiting hole. Along the height direction of the main body 10, the second limiting post 62 is located on the side of the liquid outlet 322 near the driving component 41, and the second limiting post 62 is adapted to the first limiting hole, with at least a portion of the second limiting post 62 inserted into the first limiting hole. In this embodiment, by connecting the second limiting post 62 to the first limiting post 61, it is ensured that the liquid outlet 322 will not wobble relative to the drive shaft 42, thereby improving the synchronization between the liquid outlet 322 and the cleaning component 20 during the second rotational movement, resulting in efficient and convenient assembly.

[0089] Furthermore, in this embodiment, the liquid supply component 31 includes a water tank 311 and a hose 312. The water tank 311 is installed on the main body 10, and the hose 312 connects the water tank 311 and the second outlet 320 on the liquid outlet component 322. To ensure that the hose 312 will not detach or break during the second rotational movement of the liquid outlet component 322, the length of the hose 312 is greater than the length between the water tank 311 and the liquid outlet component 322. To improve the reliability and flow rate of the water output, a water pump is also provided between the water tank 311 and the hose 312. The water pump includes a first interface and a second interface. The first interface is connected to the water tank 311, and the second interface is connected to the hose 312. In this case, the length of the hose 312 can be greater than the distance between the second interface and the second outlet 320. Secondly, to avoid wear and tear on other sharp corners of the main body 10 or entanglement and interference with other devices due to the long length of the hose 312, this embodiment can also provide a limiting groove on the outer wall of the driving component 41 and / or the main body 10. The limiting groove is located between the water tank 311 or the water pump and the second outlet 320. The hose 312 is laid in the limiting groove, thereby restricting the position of the hose 312. During the second rotational movement of the liquid outlet 322, which drives the hose 312 to move, the friction on the hose 312 can be reduced, and interference or entanglement with other devices can be avoided.

[0090] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0091] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0092] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cleaning device, characterized in that, include: Main body (10); A cleaning component (20) is disposed at the bottom of the main body (10) and has an inward state and an outward state. When the cleaning component (20) is in the outward state, the part of the cleaning component (20) located outside the edge contour of the main body (10) is larger than the part of the cleaning component (20) located outside the edge contour of the main body (10) when the cleaning component (20) is in the inward state. The cleaning assembly (20) includes a support (21) and a flexible cleaning element (22). Along the height direction of the main body (10), the flexible cleaning element (22) is disposed on the surface of the support (21) away from the main body (10). The liquid replenishment assembly (30) includes at least one first outlet (301), which is disposed on the bracket (21). The liquid replenishment assembly (30) is used to flow liquid through at least one first outlet (301) onto the flexible cleaning component (22).

2. The cleaning equipment according to claim 1, characterized in that, The support (21) is also provided with a flow guiding structure (210), the flow guiding structure (210) is connected to at least one of the first water outlets (301), and the liquid replenishment assembly (30) includes: A liquid supply component (31) is disposed on the main body (10); A flow guiding component (32) is disposed between the liquid supply component (31) and the support (21) and connects the liquid supply component (31) and the flow guiding structure (210).

3. The cleaning equipment according to claim 2, characterized in that, The flow guiding structure (210) includes a first groove (321) disposed on the bracket (21), the first groove (321) communicating with at least one of the first outlets (301); and / or, Along the height direction of the main body (10), the first outlet (301) includes a through hole structure disposed on the bracket (21).

4. The cleaning equipment according to claim 2, characterized in that, Along the height direction of the main body (10), the flow guiding structure (210) is disposed on the side of the support (21) close to the main body (10), and the flow guiding component (32) includes: The liquid outlet (322) is disposed between the main body (10) and the cleaning component (20) along the height direction of the main body (10). During the process of the cleaning component (20) moving from one of the retracted state and the outward expansion state to the other, the liquid outlet (322) can move relative to the main body (10) with the cleaning component (20). The liquid outlet (322) is provided with a second water outlet (320), which is connected to the liquid supply component (31). Along the height direction of the main body (10), the projected outer contour of the second water outlet (320) is at least partially located within the projected outer contour of the flow guiding structure (210).

5. The cleaning equipment according to claim 2, characterized in that, The cleaning device further includes a drive assembly (40), the drive assembly (40) comprising: A driving component (41) is disposed on the main body (10); A drive shaft (42) is connected to the drive component (41) and can rotate in a first clockwise direction under the drive of the drive component (41). The bracket (21) is connected to the end of the drive shaft (42) away from the drive component (41). Wherein, along the radial direction of the drive shaft (42), the flow guiding structure (210) is located between the drive shaft (42) and the first outlet (301); and / or, The replenishment component (30) further includes at least one inlet (302), at least one of the inlets (302) being disposed on the drive component (41) and communicating with at least one of the first outlets (301).

6. The cleaning equipment according to claim 5, characterized in that, The flow guiding structure (210) is arranged in a ring structure around the circumference of the drive shaft (42); and / or, The first water outlet (301) includes multiple outlets, which are arranged circumferentially along the drive shaft (42) and are respectively connected to the flow guiding structure (210).

7. The cleaning equipment according to claim 2, characterized in that, The support (21) is also provided with a water outlet channel (323), the water outlet channel (323) includes at least one, the at least one water outlet channel (323) is provided on the support (21) and located between the flow guiding structure (210) and the first water outlet (301), and the at least one water outlet channel (323) connects the flow guiding structure (210) and the first water outlet (301).

8. The cleaning equipment according to claim 7, characterized in that, The first water outlet (301) includes multiple outlets, which are spaced apart circumferentially along the support (21). The water outlet channel (323) includes multiple channels, which are arranged circumferentially along the support (21). Each first water outlet (301) is connected to at least one water outlet channel (323); and / or, The water outlet channel (323) includes a second groove (231) along the height direction of the main body (10). The second groove (231) is located on the surface of the support (21) near the main body (10) and is recessed in a direction away from the main body (10).

9. The cleaning equipment according to claim 4, characterized in that, During the process of the cleaning component (20) moving from one of the retracted state and the outward expansion state to the other, the cleaning component (20) drives the liquid outlet (322) to move synchronously so that the liquid outlet (322) is stationary relative to the cleaning component (20); and / or, During the process of the cleaning component (20) moving from one of the retracted state and the outward expansion state to the other along the height direction of the main body (10), the cleaning component (20) may perform a first rotational movement relative to the liquid outlet (322) in a first clockwise direction; Wherein, along the height direction of the main body (10), the flow guiding structure (210) has a first projected outer contour on the liquid outlet (322), and during the process of the cleaning component (20) moving from one of the retracted state and the outward expansion state to the other, the second water outlet (320) is always located within the first projected outer contour; and / or, The flow guiding structure (210) is arranged in a ring shape along the first clockwise direction.

10. The cleaning equipment according to claim 4, characterized in that, Along the height direction of the main body (10), a first clearance hole is provided through the main body (10), the cleaning component (20) has a first distance to move from one of the retracted state and the outward expansion state to the other, the length of the first clearance hole is not less than the first distance, and the cleaning device further includes: A drive assembly (40) includes a drive component (41) and a transmission shaft (42). Along the height direction of the main body (10), the drive component (41) is located on the side of the main body (10) away from the cleaning component (20) and can move relative to the main body (10) with the cleaning component (20). The transmission shaft (42) is connected to the drive component (41) and can rotate in a first clockwise direction under the drive of the drive component (41). The liquid outlet (322) is located between the cleaning component (20) and the drive component (41) and covers the first clearance hole. The end of the transmission shaft (42) away from the drive component (41) passes through the first clearance hole and the liquid outlet (322) is connected to the bracket (21). The second water outlet (320) is arranged opposite to the first clearance hole.

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