Cleaning device and control method thereof

Abstract

The invention provides a cleaning device and a control method thereof. The cleaning device comprises a bottom shell; the cleaning assembly is arranged on the bottom shell and configured to move up and down relative to the bottom shell, and a dirt inlet is formed in the cleaning assembly; the fan is provided with an exhaust inlet; the air door is configured to be movable, and movement of the air door has an opening position enabling the air suction opening and the sewage inlet to be communicated and a closing position enabling the air suction opening and the sewage inlet to be stopped; wherein a linkage connecting structure is arranged between the cleaning assembly and the air door, and the linkage connecting structure is configured to be capable of responding to the cleaning assembly to do ascending motion so as to drive the air door to the closed position and responding to the cleaning assembly to do descending motion so as to drive the air door to the open position. According to the cleaning device, when the cleaning assembly descends to execute the cleaning work, the linkage connection structure automatically drives the corresponding air door to be opened, no extra motor is needed to drive the air door, the number of motors is reduced, and the corresponding control method is simplified.

Description

Technical Field

[0001] This application relates to the field of cleaning devices, and particularly to a cleaning device and a control method for a cleaning device. Background Art

[0002] In existing cleaning devices, a blower is configured for each channel (such as a middle-sweeping channel, a mopping channel, etc.) to be driven separately, a corresponding air damper is configured for each channel, and a corresponding motor is configured to drive each air damper so that the air damper controls the conduction or cut-off of the channel under the drive of the motor. For products with multi-channel requirements, this requires a large number of motors, occupying more internal space of the machine and increasing costs. Summary of the Invention

[0003] An object of this application is to propose a cleaning device, in which a linkage connection structure is arranged between the cleaning component and the corresponding air damper. When the cleaning component descends to perform cleaning work, the corresponding air damper is driven to open through the linkage connection structure, so as to realize that the cleaning component is automatically connected to the blower during the descending process, without additionally arranging a motor to drive the air damper, saving the number of motors, reducing the cost of the product, and simplifying the control method of the corresponding cleaning device.

[0004] To solve the above technical problems, this application adopts the following technical solutions:

[0005] A technical solution of one aspect of this application proposes a cleaning device, including: a bottom case; a cleaning component arranged on the bottom case and configured to be able to move up and down relative to the bottom case, and a sewage inlet is arranged on the cleaning component; a blower with an air suction port; an air damper configured to be able to move, and the movement of the air damper has an open position where the air suction port is communicated with the sewage inlet and a closed position where the air suction port is cut off from the sewage inlet; wherein, a linkage connection structure is arranged between the cleaning component and the air damper, and the linkage connection structure is configured to be able to drive the air damper to the closed position in response to the cleaning component moving upward, and be able to drive the air damper to the open position in response to the cleaning component moving downward.

[0006] According to some technical solutions of this application, the cleaning device includes two or more of the above cleaning components, and an air damper is arranged between the air suction port of the same blower and the sewage inlets of each cleaning component, and a linkage connection structure is arranged between each cleaning component and the corresponding air damper.

[0007] According to some technical solutions of the present application, the linkage connection structure includes an elastic member and a transmission portion. Among them, the elastic member is in transmission connection with the air door, and the elastic force of the elastic member is used to drive the air door to reset to the open position. The transmission portion is arranged on the cleaning assembly. When the cleaning assembly moves upward, the transmission portion resists the elastic force of the elastic member to drive the air door to move to the closed position; or the elastic member is in transmission connection with the air door, and the elastic force of the elastic member is used to drive the air door to reset to the closed position. The transmission portion is arranged on the cleaning assembly. When the cleaning assembly moves downward, the transmission portion resists the elastic force of the elastic member to drive the air door to move to the open position.

[0008] According to some technical solutions of the present application, the air door is configured to be capable of lifting displacement movement, and switches to the closed position through upward movement and switches to the open position through downward movement; the transmission portion includes a push rod, and the push rod is arranged on the cleaning assembly to rise or fall together with the cleaning assembly, and the air door is in transmission cooperation with the push rod to rise or fall synchronously with the push rod.

[0009] According to some technical solutions of the present application, the cleaning device further includes: an air duct cavity, an air outlet and at least one air inlet are arranged on the air duct cavity, the air inlet is communicated with the sewage inlet of the corresponding cleaning assembly, and the air outlet is communicated with the suction port; the air door is movably connected to the air duct cavity, and the air door is arranged corresponding to the air inlet. Among them, the air door is in transmission connection with the linkage connection structure, and the air door controls the corresponding air inlet to open or close under the drive of the linkage connection structure, so that the suction port is communicated or cut off with the corresponding sewage inlet.

[0010] According to some technical solutions of the present application, a guiding hole is arranged on the air duct cavity corresponding to each air door, a guiding rod is arranged on the air door, and the guiding rod passes through the guiding hole and can move axially along the guiding hole; the air door is located in the air duct cavity, the air door is arranged at one axial end of the guiding rod, the other axial end of the guiding rod passes through the guiding hole and extends out of the air duct cavity, a fixing seat is arranged at the end of the guiding rod away from the air door, and an elastic member is abutted between the fixing seat and the air duct cavity. When the fixing seat is pressed, the fixing seat can drive the air door to move, so that the air door closes the air inlet.

[0011] According to some technical solutions of the present application, the cleaning device includes more than two cleaning components; two or more air inlet openings are provided on the air duct cavity, and each of the air inlet openings is correspondingly provided with a damper. Each of the air inlet openings is communicated with the sewage inlet of a corresponding cleaning component, and a linkage connection structure is provided between the damper of each air inlet opening and the corresponding cleaning component.

[0012] According to some technical solutions of the present application, the cleaning component includes a middle sweeping component, the cleaning device further includes a dust box, the inlet of the dust box is communicated with the sewage inlet of the middle sweeping component, and the outlet of the dust box is communicated with the air inlet opening; and / or the cleaning component includes a mopping component, the cleaning device further includes a sewage tank, the inlet of the sewage tank is communicated with the sewage inlet of the mopping component, and the outlet of the sewage tank is communicated with the air inlet opening.

[0013] According to some technical solutions of the present application, the cleaning component includes a cavity part, a motor, a crank, and a rocker; a cleaning unit is arranged inside the cavity part, a swing shaft is arranged on the cavity part, the swing shaft is rotatably connected to the bottom shell, and the transmission part is arranged on the cavity part and moves synchronously with the cavity part; the crank is in transmission connection with the motor, one end of the rocker is connected to the crank, the other end of the rocker is provided with a roller, the roller is embedded in a fixed groove of the bottom shell, and the rotation of the crank driven by the motor causes the rocker to swing, and the rocker drives the cavity part to swing up and down relative to the bottom shell around the swing shaft through the swing.

[0014] According to some technical solutions of the present application, the cleaning component further includes a transmission mechanism and a one-way bearing; the input end of the transmission mechanism is in transmission connection with the motor, the transmission mechanism has a first output end and a second output end, the first output end is in transmission connection with the cleaning unit, and the second output end is in transmission connection with the crank through the one-way bearing.

[0015] A technical solution in another aspect of the present application proposes a control method for a cleaning device, which is used to control the cleaning device in any of the above technical solutions. The lifting movement of the cleaning component has a lifting position and a lowering position. The control method includes the following steps

[0016] Detect the positions of all the cleaning components;

[0017] If it is detected that at least one of the cleaning components is in the lowering position, control the fan to be turned on;

[0018] If it is detected that all the cleaning components are in the lifting position, control the fan to be turned off.

[0019] For the cleaning device of the present application, a linkage connection structure is configured between the cleaning component and the corresponding air damper. When the cleaning component descends to perform the cleaning work, the cleaning component will drive the corresponding air damper to open through the linkage connection structure, so as to realize that the cleaning component is automatically connected to the fan during the descent process, without the need to additionally set a motor to drive the air damper, saving the number of motors and reducing the cost of the product.

[0020] For the control method of the cleaning device of the present application, a pure mechanical linkage is realized between the air damper and the cleaning component through the linkage connection structure. Thus, on the basis of achieving the purpose of driving the air damper, the driving motor for driving the air damper is correspondingly omitted. In the control method steps, the driving adjustment step of the air damper is correspondingly omitted, and the opening and closing of the fan are directly controlled based on the lifting position of the cleaning component, making the mode adjustment response efficiency of the cleaning device better and the response accuracy higher, and also simplifying the control logic of the product and reducing the error reporting rate.

[0021] It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By referring to the accompanying drawings and describing its exemplary embodiments in detail, the above and other objectives, features, and advantages of the present application will become more apparent.

[0023] Figure 1 It is a top view structural schematic diagram of the cleaning device in an embodiment of the present application.

[0024] Figure 2 It is an exploded structural schematic diagram of the cleaning device in an embodiment of the present application.

[0025] Figure 3 It is a sectional structural schematic diagram of the cleaning device in an embodiment of the present application.

[0026] Figure 4 It is another sectional structural schematic diagram of the cleaning device in an embodiment of the present application.

[0027] Figure 5 It is a sectional structural schematic diagram of the cleaning device in the first state in an embodiment of the present application.

[0028] Figure 6 It is a sectional structural schematic diagram of the cleaning device in the second state in an embodiment of the present application.

[0029] Figure 7 It is a sectional structural schematic diagram of the cleaning device in the third state in an embodiment of the present application.

[0030] Figure 8 It is a sectional structural schematic diagram of the cleaning device in the fourth state in an embodiment of the present application.

[0031] Figure 9 It is another schematic cross-sectional structure diagram of the cleaning device in an embodiment of the present application.

[0032] Figure 10 It is a schematic three-dimensional structure diagram of the middle sweeping component in an embodiment of the present application.

[0033] Figure 11 It is a schematic partial exploded structure diagram of the middle sweeping component in an embodiment of the present application.

[0034] Figure 12 It is a schematic partial cross-sectional structure diagram of the cleaning device in an embodiment of the present application.

[0035] Figure 13 It is a schematic three-dimensional structure diagram of the single-fan dual-channel component in an embodiment of the present application.

[0036] Figure 14 It is a schematic three-dimensional structure diagram of the single-fan dual-channel component from another perspective in an embodiment of the present application.

[0037] Figure 15 It is a schematic exploded structure diagram of the single-fan dual-channel component in an embodiment of the present application.

[0038] Figure 16 It is another schematic exploded structure diagram of the single-fan dual-channel component in an embodiment of the present application.

[0039] Figure 17 It is a schematic exploded structure diagram of the air duct cavity in an embodiment of the present application.

[0040] Figure 18 It is another schematic exploded structure diagram of the air duct cavity in an embodiment of the present application.

[0041] Figure 19 It is a schematic cross-sectional structure diagram of the air duct cavity in an embodiment of the present application.

[0042] Figure 20 It is a schematic cross-sectional structure diagram of the air duct cavity in another state in an embodiment of the present application.

[0043] Figure 21 It is a flowchart of the control method of the cleaning device in an embodiment of the present application.

[0044] The reference numerals are as follows:

[0045] 1. Single-fan dual-channel component;

[0046] 10. Air duct cavity; 11. First cover; 111A. First air inlet; 111B. Second air inlet; 112. Sealant; 12. Second cover; 121. Air outlet; 122. Guide hole; 123. Guide rod; 124. Guide groove; 125. Elastic member; 126. Fixed seat; 127. Sealing ring; 128. First fastening portion; 129. Limit groove; 13A. First air damper; 13B. Second air damper; 131. Second fastening portion; 132. Limit rib; 14. Concave position; 20. Fan; 21. Air inlet duct; 211. Channel entrance; 212. Channel exit; 22. Air outlet duct; 30. Dust box; 31. Dust box entrance; 32. Dust box exit; 33. First inclined surface; 34. Filter screen; 40. Sewage tank; 41. Sewage tank entrance; 42. Sewage tank exit; 43. Second inclined surface; 44. Nylon mesh air outlet; 45. Sponge;

[0047] 2. Middle sweeping assembly;

[0048] 51. Middle sweeping cavity; 511. Middle sweeping swing shaft; 512. First sewage inlet; 52. Middle sweeping roller brush; 53. Middle sweeping lifting mechanism; 531. Motor; 532. First synchronous belt; 533. Second synchronous belt; 534. Crankshaft; 535. Middle sweeping shaft; 536. One-way bearing; 537. Rocker; 538. Roller; 539. Crank; 54. Middle sweeping ejector rod;

[0049] 3. Mopping and washing assembly;

[0050] 61. Mopping and washing cavity; 611. Mopping and washing swing shaft; 612. Second sewage inlet; 62. Mopping and washing roller brush; 64. Mopping and washing ejector rod;

[0051] 4. Bottom shell;

[0052] 71. Fixed groove. Detailed implementation manners

[0053] Although the present application can be easily embodied in different forms of implementation manners, only some specific implementation manners are shown in the drawings and will be described in detail in this specification. At the same time, it can be understood that this specification should be regarded as a demonstration of the principle of the present application and is not intended to limit the present application to what is described herein.

[0054] Therefore, a feature pointed out in this specification will be used to illustrate one feature of one implementation manner of the present application, rather than implying that each implementation manner of the present application must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to show possible system designs, these features can also be used in other combinations that are not explicitly described. Therefore, unless otherwise stated, the described combination is not intended to be limiting.

[0055] In the embodiments shown in the drawings, the indication of directions (such as up, down, left, right, front, back, etc.) is used to explain that the structures and movements of various elements of the present application are not absolute but relative. When these elements are in the positions shown in the drawings, these descriptions are appropriate. If the descriptions of the positions of these elements change, the indication of these directions will also change accordingly.

[0056] Example embodiments will now be described more fully with reference to the drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that the description of the present application will be more complete and comprehensive, and the concept of the example embodiments will be fully conveyed to those skilled in the art. The drawings are only schematic illustrations of the present application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus repeated descriptions thereof will be omitted.

[0057] An embodiment of one aspect of the present application provides a cleaning device for performing cleaning operations such as vacuuming and mopping on a target object (such as the ground). For example, the cleaning device is a cleaning robot.

[0058] The cleaning device includes a bottom case 4, a cleaning assembly (which can be understood with reference to the middle cleaning assembly 2 and / or the mopping assembly 3), a blower 20, a damper (which can be understood with reference to the first damper 13A and / or the second damper 13B), etc. The cleaning assembly is provided with a dirt inlet, and the blower 20 is provided with a suction port; the damper is configured to be movable, and the movement of the damper has an open position that conducts between the suction port and the dirt inlet, and a closed position that cuts off between the suction port and the dirt inlet; wherein, the cleaning assembly is disposed on the bottom case 4, the cleaning assembly is configured to be able to move up and down relative to the bottom case 4, and a linkage connection structure is provided between the cleaning assembly and the damper, and the linkage connection structure is configured to be able to drive the damper to the closed position in response to the cleaning assembly moving upward, and be able to drive the damper to the open position in response to the cleaning assembly moving downward.

[0059] It can be understood that when the cleaning device performs cleaning operations such as vacuuming and mopping using the corresponding cleaning assembly, the cleaning assembly can be lowered to the ground to facilitate vacuuming or mopping the ground. When the cleaning device finishes the cleaning work, the cleaning assembly can be raised to leave the ground to facilitate obstacle avoidance during the movement of the cleaning device and prevent the cleaning assembly from secondary contaminating the ground. The cleaning assembly is provided with a dirt inlet, so that during the vacuuming or mopping process, the cleaning assembly can collect the dust or stains on the surface to be cleaned through the dirt inlet, collect the dust in the dust box, or collect the sewage in the sewage tank, achieving the effect of cleaning the ground.

[0060] A linkage connection structure is configured between the cleaning component and the corresponding air damper. In this way, when the cleaning component descends to perform the cleaning work, the corresponding air damper can be driven to the open position through the linkage connection structure, so that the dirt inlet of the cleaning component is automatically connected to the suction port of the fan 20 during the descent of the cleaning component, enabling dust suction by utilizing the driving force provided by the fan 20 during the cleaning process of the cleaning component; when the cleaning component ascends, the corresponding air damper can be driven to the closed position through the linkage connection structure, avoiding air leakage and pressure relief of the fan 20 along the cleaning component that is not performing the cleaning work when the cleaning component is not performing the cleaning work. In this way, the lifting movement of the cleaning component is used as the driving force to drive the dirt inlet to be communicated or cut off from the suction port, eliminating the need to additionally set up a motor 531 to drive the air damper, saving the number of motors 531, reducing the cost of the product, and also simplifying the electronic control logic of the product, improving the control efficiency, and reducing error faults.

[0061] In some embodiments, optionally, the cleaning device includes more than two cleaning components. An air damper is configured between the suction port of the same fan 20 and the dirt inlets of each cleaning component, and a linkage connection structure is provided between each cleaning component and the corresponding air damper. In this way, the suction port of the same fan 20 is respectively controlled to be communicated and cut off with the dirt inlets of more than two cleaning components, enabling the use of the same fan 20 to provide driving force for one of more than two cleaning components, or simultaneously providing driving force for multiple ones of more than two cleaning components. While meeting the requirements of different cleaning modes, compared with the solution of separately configuring a fan 20 for each cleaning component, the number of fans 20 is saved, further reducing the cost of the product.

[0062] The following will be combined with the attached Figures 1 to 20 Taking the cleaning device including the middle sweeping component 2 and the mopping component 3 as an example of two cleaning components, the cleaning device will be described in more detail. Of course, it can be understood that the types of cleaning components of the cleaning device are not limited to the listed middle sweeping component 2 or mopping component 3. In other embodiments, the cleaning component can be other cleaning functional components.

[0063] Combined with Figure 1 、 Figure 2 、 Figure 13 、 Figure 14 It can be understood that the cleaning device is a mopping and sweeping integrated cleaning robot, which includes a bottom shell 4, a single-fan double-channel component 1 arranged on the bottom shell 4, a middle sweeping component 2 and a mopping component 3 arranged on the bottom shell 4. The middle sweeping component 2 and the mopping component 3 can each independently rise and fall relative to the bottom shell 4. The middle sweeping component 2 is connected to one of the channels of the single-fan double-channel component 1, and the mopping component 3 is connected to the other channel of the single-fan double-channel component 1.

[0064] It can be understood that the two channels of the single - fan two - channel assembly 1 can be understood as being numerically responsive to the two cleaning assemblies, namely the middle - sweeping assembly 2 and the mopping - washing assembly 3. For the case where the cleaning device includes one cleaning assembly, the single - fan two - channel assembly 1 can be correspondingly adjusted to a single - fan single - channel assembly. For the case where the cleaning device includes three cleaning assemblies, the single - fan two - channel assembly 1 can be correspondingly adjusted to a single - fan three - channel assembly.

[0065] Through the single - fan two - channel assembly 1, one fan 20 can be used to provide power to any one of the two channels, or, simultaneously provide power to the two channels. In this way, on the basis of meeting the fan requirements of the cleaning device in different cleaning modes, the number of fans 20 of the cleaning device can be streamlined, the cost can be reduced, and the space volume of the product can also be saved.

[0066] Optionally, as Figure 2 shown, the single - fan two - channel assembly 1 includes an air - duct cavity 10, a fan 20, a dust box 30, and a sewage tank 40.

[0067] The air - duct cavity 10 is provided with an air outlet 121 and more than two air inlets. Combining Figure 15 、 Figure 16 It can be understood that the number of air inlets can be set to two corresponding to the number of channels of the single - fan two - channel assembly 1, specifically the first air inlet 111A and the second air inlet 111B. A first air damper 13A is correspondingly provided at the first air inlet 111A, and a second air damper 13B is correspondingly provided at the second air inlet 111B. By respectively controlling the first air damper 13A and the second air damper 13B, the conduction and cutoff between the air outlet 121 and the corresponding air inlet can be achieved. That is, controlling the first air damper 13A can achieve the conduction and cutoff between the air outlet 121 and the corresponding first air inlet 111A, and by controlling the second air damper 13B, the conduction and cutoff between the air outlet 121 and the corresponding second air inlet 111B can be achieved. The air outlet 121 is communicated with the suction port of the fan 20.

[0068] The middle - sweeping assembly 2 is correspondingly provided with a first sewage inlet 512. The first sewage inlet 512 is communicated with the dust - box inlet 31, and the dust - box outlet 32 is communicated with the first air inlet 111A. When the first air damper 13A controls the conduction between the first air inlet 111A and the air outlet 121, a path of the single - fan two - channel assembly 1 is formed between the first sewage inlet 512 of the middle - sweeping assembly 2 and the air outlet 121. When the first air damper 13A controls the cutoff between the first air inlet 111A and the air outlet 121, the connection between the first sewage inlet 512 of the middle - sweeping assembly 2 and the air outlet 121 is correspondingly cutoff.

[0069] It can be understood that the middle - sweeping assembly 2 is used for cleaning the ground. When the middle - sweeping assembly 2 descends, the middle - sweeping assembly 2 can contact the ground to perform the cleaning and dust - suction work on the ground. Among them, as Figure 3As shown, since the first dirt inlet 512 of the middle sweeping assembly 2 is communicated with the dust box 30, the dust box 30 can suck the dust swept from the ground by the middle sweeping assembly 2 into the dust box 30 under the negative pressure generated by the fan 20. When the middle sweeping assembly 2 rises, the middle sweeping assembly 2 can be separated from the ground to avoid secondary pollution to the ground.

[0070] The mopping and washing assembly 3 is correspondingly provided with a second dirt inlet 612. The second dirt inlet 612 is communicated with the sewage tank inlet 41, and the sewage tank outlet 42 is communicated with the second air inlet 111B. When the second air damper 13B controls the conduction between the second air inlet 111B and the air outlet 121, another passage of the single-fan double-channel assembly 1 is formed between the second dirt inlet 612 and the air outlet 121 of the mopping and washing assembly 3. When the second air damper 13B controls the cut-off between the second air inlet 111B and the air outlet 121, the connection between the second dirt inlet 612 and the air outlet 121 of the mopping and washing assembly 3 is correspondingly cut off.

[0071] It can be understood that the mopping and washing assembly 3 is used for mopping and washing the ground. When the mopping and washing assembly 3 descends, the mopping and washing assembly 3 can contact the ground to perform the mopping, washing and dust suction work on the ground. Among them, as Figure 4 shown, since the second dirt inlet 612 of the mopping and washing assembly 3 is communicated with the sewage tank 40, the sewage tank 40 can suck the dust and / or sewage cleaned from the ground by the mopping and washing assembly 3 into the sewage tank 40 under the negative pressure generated by the fan 20. When the mopping and washing assembly 3 rises, the mopping and washing assembly 3 can be separated from the ground to avoid secondary pollution to the ground.

[0072] Among them, by separately controlling the conduction and cut-off of the channels between the first air inlet 111A / second air inlet 111B and the air outlet 121 by using the first air damper 13A and the second air damper 13B, the same fan 20 can provide power for any one of the channels or provide power for both channels at the same time. In this way, while realizing the same functions of the traditional washing and sweeping integrated double-fan 20 double-channel, the dust box 30 and the sewage tank 40 share one fan 20 and one air duct cavity 10, reducing the number of the fan 20 and the air duct cavity 10, and achieving cost savings and space volume savings.

[0073] Further optionally, as Figure 3 shown, a filter screen 34 is arranged on the air flow path between the dust box inlet 31 and the dust box outlet 32 in the dust box 30. The filter screen 34 is used to filter and retain the dust in the dust box 30, reduce the dust intake of the fan 20, and avoid the problem of secondary pollution.

[0074] Further optionally, as Figure 4As shown, a nylon mesh air outlet 44 and a sponge 45 are provided on the air flow path in the sewage tank 40 between the sewage tank inlet 41 and the sewage tank outlet 42. The sponge 45 is arranged on the downstream side of the air flow of the nylon mesh air outlet 44. The nylon mesh air outlet 44 is used to filter and retain dust in the sewage tank 40, and the sponge 45 is used to filter moisture to reduce the air humidity at the sewage tank outlet 42, reduce the ingress of dust and water into the fan 20, and avoid the problem of secondary pollution.

[0075] Further optionally, the air duct cavity 10 includes a first cover 11 and a second cover 12.

[0076] The first cover 11 can be set as the long strip-shaped groove as shown in Figure 17 and Figure 18 The first air inlet 111A and the second air inlet 111B are both arranged on the side wall of the first cover 11. The first air inlet 111A and the second air inlet 111B are arranged at intervals along the length direction of the first cover 11. The first air inlet 111A and / or the second air inlet 111B can be set as the rectangular opening as shown in Figure 17 The length direction of the first air inlet 111A and / or the second air inlet 111B is substantially the same as the length direction of the first cover 11. In this way, the shape of the first cover 11 is fully combined to achieve a larger area of the first air inlet 111A and / or the second air inlet 111B, which is beneficial to improving the driving efficiency and saving the space volume of the product. Of course, the present application is not limited to this. In other embodiments, the shapes of the first air inlet 111A and / or the second air inlet 111B can also be set as circular, oval, square, etc.

[0077] The second cover 12 can be set as the long strip-shaped groove as shown in Figure 17 and Figure 18 The second cover 12 is butted against the lower side of the first cover 11. The first cover 11 and the second cover 12 can be sealed and fixed by a dotting process to enclose and form the air duct cavity 10. The first air damper 13A and the second air damper 13B are both accommodated in the air duct cavity 10. The second cover 12 is provided with an installation structure for the assembly connection and guidance of the first air damper 13A and / or the second air damper 13B, and an air outlet 121 is arranged on the bottom wall of the second cover 12. This structure can realize the rapid installation between the air damper and the air duct cavity 10, which is beneficial to the mass production of the product.

[0078] The dust box 30 and the sewage tank 40 are arranged side by side on the side of the first cover 11. The dust box outlet 32 is connected to the side of the first air inlet 111A, and the sewage tank outlet 42 is connected to the side of the second air inlet 111B. The compact arrangement between the air duct cavity 10, the fan 20, the sewage tank 40 and the dust box 30 is realized, and the space volume of the product is further saved.

[0079] The blower 20 is provided with an air inlet duct 21 and an air outlet duct 22. The top surface of the air inlet duct 21 is provided with a channel inlet 211 and a channel outlet 212 at intervals. The air inlet duct 21 of the blower 20 is located below the second cover body 12, and the channel inlet 211 is vertically butt-connected and communicated with the air outlet 121. The blower 20 is located above the air inlet duct 21, and the suction port of the blower 20 is vertically butt-connected and communicated with the channel outlet 212. The air outlet duct 22 is arranged on the side of the blower 20 facing away from the duct cavity 10 for the air outlet of the blower 20. This structure can achieve a compact layout of the air flow system of the cleaning device and save more product space volume.

[0080] Optionally, the blower 20 is a centrifugal blower, so that it can have a greater air pressure and driving force to better meet the driving requirements of more than two channels.

[0081] Further optionally, a concave position 14 is provided on the side walls of the first cover body 11 and the second cover body 12 facing away from the dust box 30 and the sewage tank 40, specifically corresponding to the position of the air outlet 121. A part of the blower 20 is embedded in the concave position 14 to further save the space volume of the product.

[0082] Hereinafter, taking the first air door 13A and the first air inlet 111A as an example, in combination with Figures 13 to 20 , the cooperation between the first air door 13A and the first air inlet 111A, the movement of the first air door 13A, the linkage connection structure between the first air door 13A and the middle sweeping component 2, and the installation structure of the first air door 13A and the duct cavity 10 will be further illustrated by examples. It can be understood that, without conflict, the structure and movement of the second air door 13B and the linkage connection structure between the second air door 13B and the mopping and washing component 3 can be understood equally or similarly with reference to the following illustration of the first air door 13A.

[0083] For example, a guiding hole 122 is provided on the second cover body 12 of the duct cavity 10 corresponding to each air door, and a guiding rod 123 is provided on each air door. The guiding rod 123 passes through the guiding hole 122 and can move axially along the guiding hole 122. That is, the first air door 13A and / or the second air door 13B are both provided with a guiding hole 122, and a guiding rod 123 is provided on the first air door 13A and / or the second air door 13B. The guiding rod 123 passes through the guiding hole 122 and can move axially along the guiding hole 122. In this way, each air door, such as the first air door 13A and / or the second air door 13B, reciprocates axially along the guiding hole 122 together with the guiding rod 123 to realize the switching between the open position and the closed position. Among them, by using the guiding cooperation between the guiding rod 123 and the guiding hole 122, it can play a guiding role in the displacement movement of each air door, so that each air door will not shake randomly during the displacement movement, and can better ensure the cooperation accuracy between each air door and the corresponding air inlet, so as to correspondingly ensure the sealing effect of the air inlet.

[0084] Optionally, the guide rod 123 is a metal rod, which provides a more reliable and precise guiding effect on the first air damper 13A and / or the second air damper 13B, and is also beneficial to improving the wind pressure bearing capacity of the first air damper 13A in the state of covering the first air inlet 111A and / or the second air damper 13B in the state of covering the second air inlet 111B, thereby improving the sealing reliability of the first air damper 13A and / or the second air damper 13B.

[0085] Further optionally, the guide rod 123 is an iron shaft.

[0086] Further optionally, the guide hole 122 is provided on the bottom wall of the second cover 12, and the axial direction of the guide hole 122 is specifically configured along the lifting direction. In this way, the movement of the guide rod 123 along the guide hole 122 is substantially consistent with the lifting movement direction of the middle sweeping assembly 2. The first air damper 13A is located in the air duct cavity 10, and the first air damper 13A is provided at one axial end of the guide rod 123. The other axial end of the guide rod 123 passes through the guide hole 122 and extends out of the air duct cavity 10. A fixing seat 126 is provided at the end of the guide rod 123 away from the first air damper 13A, and an elastic member 125 is abutted between the fixing seat 126 and the air duct cavity 10.

[0087] Wherein, the linkage connection structure between the first air damper 13A and the middle sweeping assembly 2 is specifically configured to include a middle sweeping top rod 54 and the aforementioned elastic member 125. The middle sweeping top rod 54 is provided on the middle sweeping assembly 2, and the middle sweeping top rod 54 and the fixing seat 126 are arranged opposite to each other up and down. When the middle sweeping assembly 2 rises, the middle sweeping top rod 54 rises together with the middle sweeping assembly 2. Since the middle sweeping top rod 54 and the fixing seat 126 are arranged opposite to each other up and down, in this way, during the rising process of the middle sweeping top rod 54, it will press the fixing seat 126 upward, so that the fixing seat 126 drives the guide rod 123 and the first air damper 13A to move upward together against the elastic force of the elastic member 125, realizing that the first air damper 13A reaches the closed position of covering the first air inlet 111A under the drive of the middle sweeping top rod 54. When the middle sweeping assembly 2 needs to perform the cleaning work, the middle sweeping assembly 2 descends to contact the ground, and the middle sweeping top rod 54 descends together with the middle sweeping assembly 2. At this time, the middle sweeping top rod 54 gradually releases the fixing seat 126, and the fixing seat 126 moves downward under the drive of the elastic force of the elastic member 125. Correspondingly, the guide rod 123 and the first air damper 13A move downward together, realizing that the first air damper 13A resets to the open position of opening the first air inlet 111A.

[0088] It can be understood that for the linkage connection structure between the second air damper 13B and the mopping and washing assembly 3, it is correspondingly understood to include a mopping and washing top rod 64 and the corresponding elastic member 125, which will not be repeated here.

[0089] It can be understood that based on the above structure, the opening and closing of the first air inlet 111A and / or the second air inlet 111B are controlled by the lifting function of the middle sweep assembly 2, thereby forming four combined air intake modes, which are as follows:

[0090] First, as Figure 5 As shown, the middle sweeping assembly 2 is raised and the washing and mopping assembly 3 is lowered. At this time, the second air door 13B is lowered and the first air door 13A is raised. Accordingly, the second air inlet 111B is opened and the first air inlet 111A is closed. At this time, the second sewage inlet 612-sewage tank 40-second air inlet 111B-air duct cavity 10-air outlet 121-fan 20 of the washing and mopping assembly 3 are connected, and the first sewage inlet 512 of the middle sweeping assembly 2 is not connected to the fan 20, and the cleaning device is in the single floor washing mode.

[0091] Second, if Figure 6 As shown, the middle sweeping component 2 is in a state of descending and the washing and mopping component 3 is raised. At this time, the first air door 13A descends and the second air door 13B rises. Accordingly, the first air inlet 111A is opened and the second air inlet 111B is closed. At this time, the first sewage inlet 512-dust box 30-first air inlet 111A-air duct cavity 10-air outlet 121-fan 20 of the middle sweeping component 2 are connected, and the second sewage inlet 612 of the washing and mopping component 3 is not connected to the fan 20, and the cleaning device is in single sweeping mode.

[0092] Third, if Figure 7 As shown, the middle sweeping assembly 2 and the washing and mopping assembly 3 are both in a descending state. At this time, the first air door 13A and the second air door 13B are both descending, and correspondingly, the first air inlet 111A and the second air inlet 111B are both opened. At this time, the second sewage inlet 612-sewage tank 40-second air inlet 111B-air duct cavity 10-air outlet 121-fan 20 of the washing and mopping assembly 3 are connected, and the first sewage inlet 512-dust box 30-first air inlet 111A-air duct cavity 10-air outlet 121-fan 20 of the middle sweeping assembly 2 are connected, and the cleaning device is in a front-sweep and rear-wash mode. In this mode, the middle sweeping assembly 2 in front of the cleaning device and the washing and mopping assembly 3 behind the cleaning device work at the same time.

[0093] Fourth, if Figure 8 As shown, the middle sweeping component 2 and the washing and mopping component 3 are both in the raised state. At this time, the first air door 13A and the second air door 13B are both raised, and correspondingly, the first air inlet 111A and the second air inlet 111B are both closed. The cleaning device can be in the walking mode. In this mode, the cleaning device does not perform cleaning tasks. At this time, the middle sweeping component 2 and the floor washing component of the cleaning device are both in the raised state and do not contact the ground H, so as to facilitate the cleaning device to be used in the scene of walking over obstacles or returning to the base station for recharging after completing the cleaning task, so as to avoid secondary dirt on the ground.

[0094] Of course, the present application is not limited to this. In other embodiments, the elastic force of the elastic member 125 can also be adjusted according to requirements to drive the first air damper 13A to reset to the closed position. The ejector rod is arranged on the cleaning assembly. When the cleaning assembly moves downward, the ejector rod resists the elastic force of the elastic member 125 to drive the first air damper 13A to move to the open position. The movement direction of the first air damper 13A is not limited to the listed lifting direction. In other embodiments, the first air damper 13A can also be configured to control the opening or closing of the corresponding first air inlet 111A through horizontal reciprocating movement. The cleaning assembly drives the horizontal movement of the first air damper 13A through the ejector rod and a set of transmission inclined planes during the lifting movement of the cleaning assembly.

[0095] Of course, the movement form of the first air damper 13A is not limited to the listed reciprocating displacement movement form. In other embodiments, the first air damper 13A can also be configured to be rotatable relative to the air duct cavity 10 and switch between the closed position and the open position by rotation. A transmission mechanism is arranged on the cleaning assembly to drive the rotation of the first air damper 13A along with the lifting movement of the cleaning assembly, so as to realize the first air damper 13A to control the opening or closing of the first air inlet 111A in response to the lifting movement of the cleaning assembly.

[0096] Further optionally, a guide groove 124 with an opening facing outward is provided on the bottom wall of the second cover 12 of the air duct cavity 10. The guide hole 122 is located on the bottom wall of the guide groove 124 and penetrates the bottom wall of the guide groove 124. The fixed seat 126 and the elastic member 125 are located in the guide groove 124. The fixed seat 126 can move along the guide groove 124 and is guided and adapted to the guide groove 124. By guiding and adapting the fixed seat 126 to the guide groove 124, a larger axial displacement stroke can be provided for the guide rod 123, and at the same time, a more precise coaxiality between the guide rod 123 and the guide hole 122 can be ensured, so that the guide rod 123 will not deflect randomly, thereby correspondingly improving the smoothness of the movement of the first air damper 13A, and making the first air damper 13A not easy to deflect or shake during the displacement movement.

[0097] Optionally, the guide groove 124 can be set as a rectangular groove as shown in Figure 18 and correspondingly, the fixed seat 126 is set as a rectangular block.

[0098] Optionally, a sealing ring 127 is arranged on the guide rod 123. The sealing ring 127 is located in the air duct cavity 10, between the connection end of the guide rod 123 and the first air damper 13A and the guide groove 124. It can be used to seal the gap between the guide rod 123 and the guide hole 122, reduce the air leakage of the air duct cavity 10, and when the guide rod 123 resets based on the elastic force of the elastic member 125, the sealing ring 127 buffers between the connection end of the guide rod 123 and the first air damper 13A and the guide groove 124, and can also play a role in noise reduction and shock absorption.

[0099] Optionally, a sealant 112 is nested at the edge of the first air damper 13A. When the first air damper 13A is in the closed position, the sealant 112 abuts against the first air damper 13A to seal the gap between the first air damper 13A and the first air inlet 111A. This can further improve the sealing effect of the first air damper 13A on the first air inlet 111A.

[0100] Furthermore, both the first air inlet 111A and the first air damper 13A are inclined with respect to the axial direction of the guide hole 122.

[0101] Specifically, for example, the axial direction of the guide hole 122 can be roughly understood as the OB direction shown in Figure 19 , the setting direction of the air damper is, for example, the OA direction, OB and OA are set at an angle, that is, the value of ∠AOB is greater than 0°. The setting direction of the first air inlet 111A is, for example, the X1-X2 direction, and the X1-X2 direction is roughly parallel to the OA direction, and thus is also inclined with respect to the OB direction. In this way, starting from the state shown in Figure 20 , when the air damper approaches the first air inlet 111A along the OB direction until it switches to the state shown in Figure 19 , during this process, the first air damper 13A approaches the sealant 112 at the first air inlet 111A obliquely, so that the first air damper 13A can fit well with the sealant 112 of the first air inlet 111A which is also inclined (as shown in Figure 19 ), and during the displacement movement of the first air damper 13A, the side shear force of the first air damper 13A on the sealant 112 can be reduced, and the friction between the first air damper 13A and the sealant 112 is reduced, thereby better extending the service life of the sealant 112.

[0102] As shown in Figure 17 and Figure 18 , in order to make the displacement movement of the first air damper 13A smoother, limiting ribs 132 are provided on both opposite sides of the first air damper 13A. Among them, limiting grooves 129 corresponding to each limiting rib 132 are provided on the second cover 12 of the air duct cavity 10. The limiting grooves 129 can be set as the C-shaped grooves shown in Figure 17 . The limiting ribs 132 at both ends of the baffle of the first air damper 13A are correspondingly inserted into the corresponding limiting grooves 129. During the displacement movement of the first air damper 13A, the limiting ribs 132 slide along the limiting grooves 129, thereby limiting the position of the first air damper 13A, making the first air damper 13A not easily shake randomly and improving the smoothness.

[0103] Optionally, there is a 0.2 mm clearance on one side between the limiting ribs 132 at both left and right ends of the first air damper 13A and the inner limiting groove 129 of the second cover 12, and a clearance fit between the guide rod 123 and the guide hole 122 with a 0.05 mm clearance on one side. This can ensure that the first air damper 13A can smoothly move up and down along the axial direction of the guide hole 122 with very little wobbling when installed in the second cover 12.

[0104] As Figure 19 and Figure 20 shown, to achieve the stability and sealing strength of the first air damper 13A at the position of blocking the first air inlet 111A, a first fastening portion 128 is provided on the air duct cavity 10, and a second fastening portion 131 is provided on the first air damper 13A. When the first air damper 13A moves to the closed position where it completely blocks the first air inlet 111A, the first fastening portion 128 and the second fastening portion 131 are fastened together to lock the first air damper 13A to the air duct cavity 10 (as Figure 19 shown). In this way, the first air damper 13A can better resist the wind pressure and is not easily jittered or have air leakage gaps under the drive of the wind pressure. When the first air damper 13A moves from the closed position of blocking the first air inlet 111A to the open position of opening the first air inlet 111A, the first fastening portion 128 and the second fastening portion 131 are unlocked (as Figure 20 shown).

[0105] Optionally, the first fastening portion 128 and the second fastening portion 131 can be mutually adapted hook structures. Through the hooking cooperation of the first fastening portion 128 and the second fastening portion 131, the smooth movement of the first air damper 13A can be promoted, so that during the operation of the fan 20 in the state where the first air damper 13A shields the first air inlet 111A, a good sealing performance can be maintained at the first air inlet 111A.

[0106] Further optionally, the dust box 30 includes a first inclined surface 33, the first inclined surface 33 is located around the dust box outlet 32, the first air inlet 111A is disposed opposite to the dust box outlet 32, and the end of the sealing rubber 112 away from the first air damper 13A is inclined and abuts against the first inclined surface 33. This can reduce the tangential force on the sealing rubber 112 when the dust box 30 is taken out and put in, and thus ensure the service life of the sealing rubber 112.

[0107] Further optionally, the sewage tank 40 includes a second inclined surface 43, the second inclined surface 43 is located around the sewage tank outlet 42, the second air inlet 111B is disposed opposite to the sewage tank outlet 42, and the end of the sealing rubber 112 away from the second air damper 13B is inclined and abuts against the second inclined surface 43. This can reduce the tangential force on the sealing rubber 112 when the sewage tank 40 is taken out and put in, and thus ensure the service life of the sealing rubber 112.

[0108] Next, we will combine Figures 10 to 12 The corresponding structures for realizing the lifting and lowering movement of the middle sweeping assembly 2 and / or the washing and mopping assembly 3 relative to the bottom shell 4 are illustrated by way of example.

[0109] The middle sweep assembly 2 includes a cavity portion (the cavity portion of the middle sweep assembly 2 can be specifically understood as a middle sweep cavity 51), a cleaning unit accommodated in the middle sweep cavity 51 (the cleaning unit of the middle sweep assembly 2 can be specifically understood as a middle sweep roller brush 52), a middle sweep lifting mechanism 53 arranged at one end of the middle sweep cavity 51, and a middle sweep top rod 54 arranged on the middle sweep cavity 51.

[0110] The middle sweep cavity 51 is also provided with a swing shaft (the swing shaft of the middle sweep assembly 2 can be specifically understood as the middle sweep swing shaft 511), and the number of the middle sweep swing shaft 511 can be as follows: Figure 10 As shown, two middle sweep swing shafts 511 are respectively rotatably connected to the bottom shell 4 , so that the middle sweep cavity 51 can rotate around the middle sweep swing shaft 511 relative to the bottom shell 4 , thereby rising and falling relative to the bottom shell 4 .

[0111] The middle sweeping cavity 51 is also provided with a first sewage inlet 512 , which is connected to the dust box inlet 31 .

[0112] The middle sweep lifting mechanism 53 includes a motor 531, a first synchronous belt 532, a second synchronous belt 533, a crank shaft 534, a middle sweep shaft 535, a one-way bearing 536, a crank 539, a rocker 537, and a roller 538. The motor shaft of the motor 531 is connected to the pulley at the first end of the first synchronous belt 532 to drive the first synchronous belt 532 to move, the crank 539 is connected to the pulley at the second end of the first synchronous belt 532 through the one-way bearing 536, one end of the rocker 537 is eccentrically connected to the crank 539, and the other end of the rocker 537 is provided with a roller 538, which is embedded in the fixing groove 71 of the bottom shell 4. When the crank 539 rotates under the drive of the motor 531, it drives the rocker 537 to swing, and the rocker 537 swings to drive the middle sweep cavity 51 to swing up and down relative to the bottom shell 4 around the middle sweep swing axis 511.

[0113] The pulley at the first end of the second synchronous belt 533 is coaxially connected to the pulley at the second end of the first synchronous belt 532, the pulley at the second end of the second synchronous belt 533 is connected to the middle sweep shaft, and the middle sweep roller brush 52 is transmission-connected to the middle sweep shaft.

[0114] Among them, when the motor shaft of the motor 531 rotates along the first direction, the driving rocker 537 is realized through the transmission path of the motor 531-first synchronous belt 532-one-way bearing 536-crank 539-rocker 537 to swing, so that the swing of the rocker 537 drives the middle sweep assembly 2 as a whole to swing relative to the bottom shell 4 based on the middle sweep swing shaft 511, thereby realizing the rising or falling of the middle sweep assembly 2.

[0115] When the motor shaft of the motor 531 rotates in the second direction, due to the limiting effect of the one-way bearing 536, the crank 539 of the middle sweeping assembly 2 will not rotate driven by the motor 531. Therefore, the middle sweeping assembly 2 will not rise or fall driven by the motor 531. At this time, through the transmission path of the motor 531 - the first synchronous belt 532 - the second synchronous belt 533 - the middle sweeping shaft - the middle sweeping roller brush 52, the middle sweeping roller brush 52 is driven to rotate to clean the ground.

[0116] Wherein, a middle sweeping ejector rod 54 is arranged on the middle sweeping cavity 51, and the middle sweeping ejector rod 54 corresponds to the fixed seat 126 in the bottom guide groove 124 of the air duct cavity 10. When the middle sweeping assembly 2 rises, the middle sweeping ejector rod 54 rises accordingly and jacks up the fixed seat 126 connected to the air door through the guide rod 123, so that the air door is correspondingly shielded from the first air inlet 111A driven by the fixed seat 126. When the middle sweeping assembly 2 descends, the middle sweeping ejector rod 54 releases the fixed seat 126. At this time, the guide rod 123 descends driven by the elastic member 125, so that the air door descends correspondingly to open the first air inlet 111A.

[0117] It can be understood that the mopping and washing assembly 3 has a lifting function similar to that of the middle sweeping assembly 2. Without conflict, the mopping and washing assembly 3 may also correspondingly have a mopping and washing cavity 61 (i.e., the cavity part), a mopping and washing roller brush 62 (i.e., the cleaning unit) accommodated in the mopping and washing cavity 61, a mopping and washing lifting mechanism arranged at one end of the mopping and washing cavity 61, a mopping and washing ejector rod 64 arranged on the mopping and washing cavity 61, a mopping and washing swing shaft 611 (i.e., the swing shaft), a second sewage inlet 612 and other structural features. The connection relationship and position of these structural features can be understood adaptively with reference to the relevant description of the middle sweeping assembly 2, and will not be repeated here.

[0118] The lifting drive of the middle sweeping assembly 2 and / or the mopping and washing assembly 3 is realized through the above-mentioned lifting mechanism, and the driving motor 531 of the cleaning unit of the middle sweeping assembly 2 and / or the mopping and washing assembly 3 is reused to realize the lifting drive, which can further streamline the number of motors 531.

[0119] An embodiment of another aspect of the present application provides a control method for a cleaning device, which is used to control the cleaning device described in any of the above embodiments. Wherein, the lifting movement of each cleaning component of the cleaning device has a lifting position and a descending position, as Figure 21 shown, the control method includes the following steps:

[0120] S100. Detect the positions of each of the cleaning components;

[0121] It can be understood that the lowering position of the cleaning assembly can be regarded as the position where the cleaning assembly descends for contacting the ground, and the lifting position of the cleaning assembly can be regarded as the position where the cleaning assembly ascends to leave the ground. In some possible implementations, the position detection of the cleaning assembly can be achieved by using a position sensor, so that when the cleaning assembly reaches the lowering position and / or the lifting position, the position sensor responds by emitting corresponding signals to achieve the purpose of position detection. Of course, in some other possible implementations, the lifting and lowering movement of the cleaning assembly is achieved by motor drive, and the current position of the cleaning assembly is correspondingly identified by detecting the rotation angle of the motor.

[0122] S200. If it is detected that at least one of the cleaning assemblies is in the lowering position, control the blower to turn on; if it is detected that all the cleaning assemblies are in the lifting position, control the blower to turn off.

[0123] Regarding controlling the blower to turn on when it is detected that at least one cleaning assembly is in the lowering position, it can be understood that since the cleaning assembly and the corresponding air door are connected by a linkage connection structure, when the cleaning assembly is in the lowering position, the corresponding air door will be automatically linked to the open position. At this time, directly turning on the blower can provide negative pressure for the cleaning assembly to meet the cleaning requirements, without the control step of driving the air door, which simplifies the control logic and makes the mode switching response of the cleaning device faster and more accurate.

[0124] Regarding controlling the blower to turn off when it is detected that all the cleaning assemblies are in the lifting position, it can be understood that since each cleaning assembly and the corresponding air door are respectively connected by a linkage connection structure, when all the cleaning assemblies are in the lifting position, the corresponding air doors will be automatically linked to the closed position. At this time, turning off the blower can avoid the idling of the blower and does not require the control step of driving each air door, which simplifies the control logic and makes the mode switching response of the cleaning device faster and more accurate.

[0125] Although the present application has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present application can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be broadly construed within the spirit and scope defined by the appended claims. Therefore, all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A cleaning device, characterized in that, Comprising: Bottom shell; Cleaning component, arranged on the bottom shell and configured to move up and down relative to the bottom shell, with a sewage inlet provided on the cleaning component; Fan, provided with a suction port; Air damper, configured to be movable, and the movement of the air damper has an open position where the suction port and the sewage inlet are communicated, and a closed position where the suction port and the sewage inlet are cut off; Wherein, a linkage connection structure is provided between the cleaning component and the air damper, and the linkage connection structure is configured to drive the air damper to the closed position in response to the upward movement of the cleaning component, and to drive the air damper to the open position in response to the downward movement of the cleaning component.

2. The cleaning device according to claim 1, wherein The cleaning device includes two or more of the cleaning components, and a corresponding air damper is arranged between the suction port of the same fan and the sewage inlets of each cleaning component, and the linkage connection structure is provided between each cleaning component and the corresponding air damper.

3. The cleaning device according to claim 1, wherein The linkage connection structure includes an elastic member and a transmission part, wherein The elastic member is in transmission connection with the air damper, and the elastic force of the elastic member is used to drive the air damper to reset to the open position. The transmission part is arranged on the cleaning component. When the cleaning component moves upward, the transmission part resists the elastic force of the elastic member to drive the air damper to move to the closed position; or The elastic member is in transmission connection with the air damper, and the elastic force of the elastic member is used to drive the air damper to reset to the closed position. The transmission part is arranged on the cleaning component. When the cleaning component moves downward, the transmission part resists the elastic force of the elastic member to drive the air damper to move to the open position.

4. The cleaning device according to claim 3, wherein The air damper is configured to be able to move up and down, and switches to the closed position through upward movement and switches to the open position through downward movement; The transmission part includes a push rod, and the push rod is arranged on the cleaning component to rise or fall together with the cleaning component. The air damper is in transmission cooperation with the push rod to rise or fall synchronously with the push rod.

5. The cleaning device according to any one of claims 1 to 4, characterized in that, Further comprising: Air duct cavity, with an air outlet and at least one air inlet provided on the air duct cavity. The air inlet is communicated with the sewage inlet of the corresponding cleaning component, and the air outlet is communicated with the suction port; The air damper is movably connected to the air duct cavity, and the air damper is correspondingly arranged with the air inlet. Wherein, the air damper is in transmission connection with the linkage connection structure, and the air damper controls the corresponding air inlet to open or close under the drive of the linkage connection structure, so that the suction port and the corresponding sewage inlet are communicated or cut off.

6. The cleaning device according to claim 5, wherein A guiding hole is provided on the air duct cavity corresponding to each air damper, and a guiding rod is provided on the air damper. The guiding rod passes through the guiding hole and can move axially along the guiding hole. The air damper is located within the air duct cavity. The air damper is disposed at one axial end of the guide rod, and the other axial end of the guide rod passes through the guide hole and extends out of the air duct cavity. A fixed seat is provided at the end of the guide rod away from the air damper, and an elastic member is abutted between the fixed seat and the air duct cavity. When the fixed seat is pressed, the fixed seat can drive the air damper to move, so that the air damper closes the air inlet.

7. The cleaning device according to claim 5, wherein the cleaning device includes more than two cleaning components; More than two air inlets are provided on the air duct cavity, and each air inlet is correspondingly provided with an air damper. Each air inlet is communicated with the sewage inlet of a corresponding cleaning component, and a linkage connection structure is provided between the air damper of each air inlet and the corresponding cleaning component.

8. The cleaning device according to claim 5, wherein the cleaning component includes a middle sweeping component, and the cleaning device further includes a dust box. The inlet of the dust box is communicated with the sewage inlet of the middle sweeping component, and the outlet of the dust box is communicated with the air inlet; and / or the cleaning component includes a mopping component, and the cleaning device further includes a sewage tank. The inlet of the sewage tank is communicated with the sewage inlet of the mopping component, and the outlet of the sewage tank is communicated with the air inlet.

9. The cleaning device according to claim 3 or 4, wherein the cleaning component includes a cavity part, a motor, a crank, and a rocker; A cleaning unit is provided within the cavity part. A swing shaft is provided on the cavity part, and the swing shaft is rotatably connected to the bottom case. The transmission part is provided on the cavity part and moves synchronously with the cavity part; The crank is in transmission connection with the motor. One end of the rocker is connected to the crank, and a roller is provided at the other end of the rocker. The roller is embedded in the fixed groove of the bottom case. The crank rotates under the drive of the motor to swing the rocker, and the rocker drives the cavity part to swing up and down relative to the bottom case around the swing shaft.

10. The cleaning device according to claim 9, wherein the cleaning component further includes a transmission mechanism and a one-way bearing; The input end of the transmission mechanism is in transmission connection with the motor. The transmission mechanism has a first output end and a second output end. The first output end is in transmission connection with the cleaning unit, and the second output end is in transmission connection with the crank through the one-way bearing.

11. A control method for a cleaning device, used to control the cleaning device as described in any one of claims 1 to 10, wherein the lifting movement of the cleaning assembly has a raised position and a lowered position, and is characterized in that, The control method includes the following steps: Detect the positions of all the cleaning components; If it is detected that at least one of the cleaning components is in the lowered position, control the blower to be turned on; if it is detected that all the cleaning components are in the raised position, control the blower to be turned off.

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