Cleaning device and control method therefor

Abstract

A cleaning device and a control method therefor. The cleaning device comprises: a bottom housing (4); cleaning assemblies (2, 3) provided on the bottom housing (4) and configured to be capable of moving up and down relative to the bottom housing (4), wherein the cleaning assemblies (2, 3) are provided with waste inlets; a fan (20) provided with an air suction port; and air dampers (13A, 13B) configured to be capable of moving, the air dampers (13A, 13B) moving between an open position where the air suction port is communicated with the waste inlet and a closed position where the air suction port is disconnected from the waste inlet, wherein a linkage connection structure is provided between each cleaning assembly (2, 3) and the corresponding air damper (13A, 13B), and the linkage connection structure is configured to be capable of: moving upward in response to the cleaning assembly (2, 3) so as to drive the air damper (13A, 13B) to the closed position, and moving downward in response to the cleaning assembly (2, 3) so as to drive the air damper (13A, 13B) to the open position. The cleaning device does not need to be additionally provided with a motor to drive the air dampers (13A, 13B), thereby saving the number of motors, and simplifying the control method.

Description

Cleaning device and control method thereof

[0001] This application claims priority to the prior application with application number 202311872217.7, filed with the State Intellectual Property Office of China on December 29, 2023, and application name “Cleaning device and control method thereof”. The contents of the above-mentioned prior application are incorporated into this text by introduction. Technical Field

[0002] The present application relates to the field of cleaning devices, and in particular to a cleaning device and a control method for a cleaning device. Background Art

[0003] Existing cleaning devices use a separate fan for each channel (e.g., the mid-sweep channel, the wash and mop channel, etc.). Each channel is equipped with a corresponding damper, and each damper is driven by a corresponding motor. The damper controls the channel's flow and shutoff, driven by the motor. For products with multiple channels, this requires a large number of motors, which takes up more internal space and increases costs.

[0004] Application Contents

[0005] One purpose of the present application is to propose a cleaning device, in which a linkage connection structure is configured between the cleaning component and the corresponding air door. When the cleaning component descends to perform cleaning work, the linkage connection structure drives the corresponding air door to open, so that the cleaning component is automatically connected to the fan during the descent process. There is no need to set up an additional motor to drive the air door, which saves the number of motors, reduces the cost of the product, and simplifies the control method of the corresponding cleaning device.

[0006] To solve the above technical problems, this application adopts the following technical solutions:

[0007] The technical solution of one aspect of the present application proposes a cleaning device, comprising: a bottom shell; a cleaning component, which is arranged on the bottom shell and configured to be able to move up and down relative to the bottom shell, and the cleaning component is provided with a sewage inlet; a fan, which is provided with an air suction port; an air door, which is configured to be able to move, and the movement of the air door has an open position that connects the air suction port and the sewage inlet, and a closed position that blocks the air suction port and the sewage inlet; wherein a linkage connection structure is provided between the cleaning component and the air door, and the linkage connection structure is configured to drive the air door to the closed position in response to the cleaning component making an upward movement, and to drive the air door to the open position in response to the cleaning component making a downward movement.

[0008] According to some technical solutions of the present application, the cleaning device includes more than two cleaning components, and an air damper is arranged between the air suction port of the same fan and the sewage inlet of each cleaning component, and the linkage connection structure is provided between each cleaning component and the corresponding air damper.

[0009] According to some technical solutions of the present application, the linkage connection structure includes an elastic member and a transmission part, wherein the elastic member is transmission-connected to the damper, the elastic force of the elastic member is used to drive the damper to reset to the open position, and the transmission part is arranged on the cleaning component, and when the cleaning component makes an upward movement, the transmission part resists the elastic force of the elastic member to drive the damper to move toward the closed position; or the elastic member is transmission-connected to the damper, the elastic force of the elastic member is used to drive the damper to reset to the closed position, and the transmission part is arranged on the cleaning component, and when the cleaning component makes a downward movement, the transmission part resists the elastic force of the elastic member to drive the damper to move toward the open position.

[0010] According to some technical solutions of the present application, the damper is configured to be able to move up and down, and to switch to the closed position through an upward movement, and to switch to the open position through a downward movement; the transmission part includes a push rod, which is arranged on the cleaning component to rise or fall with the cleaning component, and the damper cooperates with the push rod transmission to rise or fall synchronously with the push rod.

[0011] According to some technical solutions of the present application, the cleaning device also includes: an air duct cavity, wherein an air outlet and at least one air inlet are provided on the air duct cavity, the air inlet is connected to the sewage inlet of the corresponding cleaning component, and the air outlet is connected to the air suction port; the air door is movably connected to the air duct cavity, and the air door is arranged corresponding to the air inlet, wherein the air door is transmission-connected to 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 air suction port and the corresponding sewage inlet are connected or cut off.

[0012] According to some technical solutions of the present application, a guide hole is provided on the air duct cavity corresponding to each of the air doors, and a guide rod is provided on the air door, which is passed through the guide hole and can move axially along the guide hole; the air door is located in the air duct cavity, and the air door is provided 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, and a fixed seat is provided at the end of the guide rod away from the air door, and an elastic member is abutted against the fixed seat and the air duct cavity. When the fixed seat is pressed, the fixed seat can link the movement of the air door, so that the air door closes the air inlet.

[0013] According to some technical solutions of the present application, the cleaning device includes more than two cleaning components; more than two air inlets are arranged on the air duct cavity, each of the air inlets is correspondingly provided with an air damper, each of the air inlets is connected to 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.

[0014] According to some technical solutions of the present application, the cleaning component includes a middle sweeping component, and the cleaning device also includes a dust box, the inlet of the dust box is connected to the sewage inlet of the middle sweeping component, and the outlet of the dust box is connected to the air inlet; and / or the cleaning component includes a washing and mopping component, and the cleaning device also includes a sewage tank, the inlet of the sewage tank is connected to the sewage inlet of the washing and mopping component, and the outlet of the sewage tank is connected to the air inlet.

[0015] According to some technical solutions of the present application, the cleaning component includes a cavity portion, a motor, a crank, and a rocker; a cleaning unit is provided in the cavity portion, a swing shaft is provided on the cavity portion, the swing shaft is rotatably connected to the bottom shell, and the transmission portion is provided on the cavity portion and moves synchronously with the cavity portion; the crank is transmission-connected to the motor, one end of the rocker is connected to the crank, and a roller is provided at the other end of the rocker, and the roller is embedded in a fixed groove of the bottom shell. The crank rotates under the drive of the motor to make the rocker swing, and the rocker drives the cavity portion to swing up and down around the swing shaft relative to the bottom shell by swinging.

[0016] According to some technical solutions of the present application, the cleaning component also includes a transmission mechanism and a one-way bearing; the input end of the transmission mechanism is connected to the motor transmission, and the transmission mechanism has a first output end and a second output end, the first output end is connected to the cleaning unit transmission, and the second output end is connected to the crank transmission through the one-way bearing.

[0017] Another aspect of the present application provides a method for controlling a cleaning device, which is used to control the cleaning device described 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:

[0018] detecting the position of each of the cleaning components;

[0019] If it is detected that at least one of the cleaning components is in the lowered position, controlling the fan to turn on;

[0020] If it is detected that all the cleaning components are in the raised position, the fan is controlled to be turned off.

[0021] The cleaning device of the present application is provided with a linkage connection structure between the cleaning component and the corresponding air door. When the cleaning component descends to perform cleaning work, the cleaning component will drive the corresponding air door to open through the linkage connection structure, so that the cleaning component is automatically connected to the fan during the descent process. There is no need to set up an additional motor to drive the air door, which saves the number of motors and reduces the cost of the product.

[0022] The control method of the cleaning device of the present application realizes pure mechanical linkage between the damper and the cleaning component through a linkage connection structure, thereby omitting the drive motor for driving the damper on the basis of achieving the driving purpose of the damper. In the control method steps, the drive adjustment step of the damper is omitted accordingly, and the opening and closing of the fan is directly controlled based on the lifting position of the cleaning component, so that the mode adjustment response efficiency of the cleaning device is better and the response accuracy is higher, and the control logic of the product is simplified, thereby reducing the error rate.

[0023] It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other objects, features and advantages of the present application will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0025] FIG1 is a schematic top view of the structure of a cleaning device in one embodiment of the present application.

[0026] FIG2 is a schematic diagram of the exploded structure of a cleaning device in one embodiment of the present application.

[0027] FIG3 is a schematic cross-sectional view of a cleaning device according to an embodiment of the present application.

[0028] FIG4 is another schematic cross-sectional view of the cleaning device in one embodiment of the present application.

[0029] FIG5 is a schematic cross-sectional view of the cleaning device in a first state according to an embodiment of the present application.

[0030] FIG6 is a schematic cross-sectional view of the cleaning device in the second state according to an embodiment of the present application.

[0031] FIG7 is a schematic cross-sectional view of the cleaning device in the third state in one embodiment of the present application.

[0032] FIG8 is a schematic cross-sectional view of the cleaning device in a fourth state according to an embodiment of the present application.

[0033] FIG9 is another schematic cross-sectional view of the cleaning device in one embodiment of the present application.

[0034] FIG10 is a schematic diagram of the three-dimensional structure of the middle sweep assembly in one embodiment of the present application.

[0035] FIG11 is a schematic diagram of a partially exploded structure of a middle sweep assembly in one embodiment of the present application.

[0036] FIG12 is a schematic diagram of a partial cross-sectional structure of a cleaning device in one embodiment of the present application.

[0037] FIG13 is a schematic diagram of the three-dimensional structure of a single-fan dual-channel assembly in one embodiment of the present application.

[0038] FIG14 is a schematic diagram of the three-dimensional structure of a single-fan dual-channel assembly from another perspective in one embodiment of the present application.

[0039] FIG15 is a schematic diagram of the exploded structure of a single-fan dual-channel assembly in one embodiment of the present application.

[0040] FIG16 is another exploded structural diagram of a single-fan dual-channel assembly in one embodiment of the present application.

[0041] FIG17 is a schematic diagram of the decomposed structure of the air duct cavity in one embodiment of the present application.

[0042] FIG18 is another schematic diagram of the decomposed structure of the air duct cavity in one embodiment of the present application.

[0043] FIG19 is a schematic diagram of the cross-sectional structure of the air duct cavity in one embodiment of the present application.

[0044] FIG20 is a schematic diagram of the cross-sectional structure of the air duct cavity in another state in one embodiment of the present application.

[0045] FIG21 is a flowchart of a method for controlling a cleaning device in one embodiment of the present application.

[0046] The reference numerals are as follows: 1. Single blower dual channel assembly; 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. Fixing seat; 127. Sealing ring; 128. First fastening portion; 129. Limiting groove; 13A. First damper; 13B. Second damper; 131. Second fastening portion; 132. Limiting 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; 40. Sewage tank; 41. Sewage tank entrance; 42. Sewage tank outlet; 43. Second inclined surface; 44. Nylon mesh air outlet; 45. Sponge;

[0047] 2. Middle sweep assembly;

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

[0049] 3. Washing and mopping components;

[0050] 61. Washing and mopping chamber; 611. Washing and mopping swing shaft; 612. Second sewage inlet; 62. Washing and mopping roller brush; 64. Washing and mopping top rod;

[0051] 4. Bottom shell;

[0052] 71. Fixed slot. DETAILED DESCRIPTION

[0053] Although the present application can be easily embodied in different forms of embodiments, only some of the specific embodiments are shown in the drawings and will be described in detail in this specification. It should be understood that this description should be regarded as an exemplary illustration of the principles of the application and is not intended to limit the application to what is described herein.

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

[0055] In the embodiments shown in the accompanying drawings, directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of various components of the present application are not absolute but relative. These descriptions are applicable when these components are in the positions shown in the accompanying drawings. If the descriptions of the positions of these components are changed, these directional indications will also change accordingly.

[0056] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of 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 this application will be more comprehensive and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The accompanying drawings are merely schematic illustrations of the present application and are not necessarily drawn to scale. Identical reference numerals in the figures indicate identical 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, which is used to perform cleaning operations such as vacuuming, washing, 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 shell 4, a cleaning component (which can be understood by referring to the middle sweeping component 2 and / or the washing and mopping component 3), a fan 20, an air door (which can be understood by referring to the first air door 13A and / or the second air door 13B), etc. The cleaning component is provided with a sewage inlet, and the fan 20 is provided with an air suction port; the air door is configured to be movable, and the movement of the air door has an open position that connects the air suction port and the sewage inlet, and a closed position that blocks the air suction port and the sewage inlet; wherein, the cleaning component is provided on the bottom shell 4, and the cleaning component is configured to be able to move up and down relative to the bottom shell 4, and a linkage connection structure is provided between the cleaning component and the air door, and the linkage connection structure is configured to drive the air door to a closed position in response to the cleaning component making an upward movement, and to drive the air door to an open position in response to the cleaning component making a downward movement.

[0059] It is understood that when the cleaning device uses the corresponding cleaning component to perform cleaning tasks such as vacuuming, washing and mopping, the cleaning component can be lowered to the ground to facilitate vacuuming or washing and mopping the ground. When the cleaning device completes the cleaning task, the cleaning component can be raised to leave the ground to facilitate obstacle avoidance during movement and to prevent the cleaning component from secondary contamination of the ground. The cleaning component is provided with a sewage inlet, so that during the vacuuming or washing and mopping process, the cleaning component can collect dust or stains on the surface to be cleaned into the dust box through the sewage inlet, or collect sewage into the sewage tank, thereby achieving the effect of cleaning the ground.

[0060] A linkage connection structure is configured between the cleaning component and the corresponding damper. In this way, when the cleaning component descends to perform cleaning work, the linkage connection structure can be used to drive the corresponding damper to the open position, so that the cleaning component automatically connects the sewage inlet of the cleaning component with the air suction port of the fan 20 during the descent process, so that the driving force provided by the fan 20 can be used to achieve dust collection during the cleaning work of the cleaning component; when the cleaning component rises, the linkage connection structure can be used to drive the corresponding damper to the closed position, so as to avoid the fan 20 leaking air and releasing pressure along the cleaning component that is not performing cleaning work when the cleaning component is not performing cleaning work. In this way, the lifting and lowering movement of the cleaning component is used as the driving force to drive the sewage inlet and the air suction port to be connected or cut off, and there is no need to set up an additional motor 531 to drive the damper, which saves the number of motors 531, reduces the cost of the product, and correspondingly simplifies the electronic control logic of the product, improves the control efficiency, and reduces error reporting and failure.

[0061] In some embodiments, the cleaning device optionally includes more than two cleaning components, and a damper is provided between the air intake of the same fan 20 and the sewage inlet of each cleaning component, and a linkage connection structure is provided between each cleaning component and the corresponding damper. In this way, the air intake of the same fan 20 and the sewage inlet of the two or more cleaning components are respectively connected and cut off by the damper control, so that the same fan 20 can be used to provide driving force for one of the two or more cleaning components, or to provide driving force for multiple of the two or more cleaning components at the same time, thereby meeting the requirements of different cleaning modes. Compared with the solution of configuring a fan 20 for each cleaning component, the number of fans 20 is saved, thereby further reducing product costs.

[0062] The following, with reference to Figures 1 to 20 , describes a cleaning device in more detail, using an example of a cleaning device comprising two cleaning components, namely, a mid-sweep component 2 and a wash-and-mop component 3. It is understood that the cleaning components of a cleaning device are not limited to the mid-sweep component 2 or the wash-and-mop component 3. In other embodiments, the cleaning components may include other cleaning components.

[0063] In combination with Figures 1, 2, 13 and 14, it can be understood that the cleaning device is a cleaning robot that washes and mops in one, which includes a bottom shell 4, a single-fan dual-channel component 1 arranged on the bottom shell 4, a middle sweep component 2 and a washing and mopping component 3 arranged on the bottom shell 4, and the middle sweep component 2 and the washing and mopping component 3 can each rise and fall independently relative to the bottom shell 4, the middle sweep component 2 is connected to one of the channels of the single-fan dual-channel component 1, and the washing and mopping component 3 is connected to the other channel of the single-fan dual-channel component 1.

[0064] It can be understood that the dual channels of the single-fan dual-channel component 1 can be understood as corresponding in quantity to the two cleaning components, the middle sweeping component 2 and the washing and mopping component 3. For the case where the cleaning device includes one cleaning component, the single-fan dual-channel component 1 can be adjusted accordingly to a single-fan single-channel component. For the case where the cleaning device includes three cleaning components, the single-fan dual-channel component 1 can be adjusted accordingly to a single-fan three-channel component.

[0065] Through the single-fan dual-channel assembly 1, one fan 20 can be used to provide power to any one of the dual channels, or to provide power to the dual channels at the same time. In this way, while meeting the fan requirements of the cleaning device in different cleaning modes, the number of fans 20 in the cleaning device can be streamlined, reducing costs and saving the space volume of the product.

[0066] Optionally, as shown in FIG2 , the single-fan dual-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 two or more air inlets. As can be understood from Figures 15 and 16 , the number of air inlets can correspond to the number of channels in the single-fan dual-channel assembly 1 and be set to two, specifically, a first air inlet 111A and a second air inlet 111B. A first damper 13A is provided corresponding to the first air inlet 111A, and a second damper 13B is provided corresponding to the second air inlet 111B. By controlling the first damper 13A and the second damper 13B, the air outlet 121 and the corresponding air inlet can be connected and blocked. That is, controlling the first damper 13A can connect and block the air outlet 121 to the corresponding first air inlet 111A, while controlling the second damper 13B can connect and block the air outlet 121 to the corresponding second air inlet 111B. The air outlet 121 is connected to the air intake of the fan 20.

[0068] The middle sweep assembly 2 is provided with a first dirt inlet 512, which communicates with the dust box inlet 31, and the dust box outlet 32 ​​communicates with the first air inlet 111A. When the first damper 13A controls the flow between the first air inlet 111A and the air outlet 121, a passageway of the single-fan dual-channel assembly 1 is formed between the first dirt inlet 512 and the air outlet 121 of the middle sweep assembly 2. When the first damper 13A blocks the flow between the first air inlet 111A and the air outlet 121, the flow between the first dirt inlet 512 and the air outlet 121 of the middle sweep assembly 2 is blocked.

[0069] It can be understood that the middle sweep assembly 2 is used to clean the floor. When the middle sweep assembly 2 descends, the middle sweep assembly 2 can contact the floor to perform cleaning and dust collection operations. As shown in FIG3 , since the first dirt inlet 512 of the middle sweep assembly 2 is connected to the dust box 30, the negative pressure generated by the fan 20 in the dust box 30 can suck the dust swept from the floor by the middle sweep assembly 2 into the dust box 30. When the middle sweep assembly 2 ascends, the middle sweep assembly 2 can separate from the floor to avoid secondary contamination of the floor.

[0070] The washing and mopping assembly 3 is also equipped with a second sewage inlet 612, which communicates with the sewage tank inlet 41. The sewage tank outlet 42 communicates with the second air inlet 111B. When the second damper 13B controls the flow between the second air inlet 111B and the air outlet 121, another passageway of the single-fan dual-channel assembly 1 is formed between the second sewage inlet 612 and the air outlet 121 of the washing and mopping assembly 3. When the second damper 13B blocks the flow between the second air inlet 111B and the air outlet 121, the flow between the second sewage inlet 612 and the air outlet 121 of the washing and mopping assembly 3 is also blocked.

[0071] It can be understood that the washing and mopping assembly 3 is used to wash and mop the floor. When the washing and mopping assembly 3 is lowered, the washing and mopping assembly 3 can contact the floor to perform washing, mopping, and vacuuming operations on the floor. As shown in FIG4 , since the second sewage inlet 612 of the washing and mopping assembly 3 is connected to the sewage tank 40, the negative pressure generated by the fan 20 in the sewage tank 40 can suck the dust and / or sewage cleaned from the floor by the washing and mopping assembly 3 into the sewage tank 40. When the washing and mopping assembly 3 is raised, the washing and mopping assembly 3 can be separated from the floor to avoid secondary contamination of the floor.

[0072] The first and second dampers 13A, 13B independently control the opening and closing of the channel between the first air inlet 111A / second air inlet 111B and the air outlet 121, allowing the same fan 20 to power either channel or both channels simultaneously. This allows the dust box 30 and the sewage tank 40 to share a single fan 20 and air duct cavity 10, while achieving the same dual-channel functionality as a conventional integrated washer and sweeper. This reduces the number of fans 20 and air duct cavities 10, saving both cost and space.

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

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

[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 configured as a long strip-shaped groove as shown in Figures 17 and 18. The first air inlet 111A and the second air inlet 111B are both provided on the side wall of the first cover 11. The first air inlet 111A and the second air inlet 111B are spaced apart along the length of the first cover 11. The first air inlet 111A and / or the second air inlet 111B can both be configured as rectangular openings as shown in Figure 17. The length direction of the first air inlet 111A and / or the second air inlet 111B is substantially consistent with 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 conducive to improving driving efficiency while saving product space volume. Of course, the present application is not limited to this. In other embodiments, the shape of the first air inlet 111A and / or the second air inlet 111B can also be configured as a circle, an ellipse, a square, etc.

[0077] The second cover 12 can be configured as a long, rectangular groove as shown in Figures 17 and 18. The second cover 12 is docked on the lower side of the first cover 11. The first and second covers 11, 12 can be sealed and fixed using a dispensing process to enclose and form the air duct cavity 10. The first damper 13A and the second damper 13B are both accommodated within the air duct cavity 10. The second cover 12 is provided with a mounting structure for assembling, connecting, and guiding the first damper 13A and / or the second damper 13B. An air outlet 121 is provided on the bottom wall of the second cover 12. This structure allows for quick installation of the dampers and the air duct cavity 10, facilitating 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. This achieves a compact arrangement of the air duct cavity 10, fan 20, sewage tank 40, and dust box 30, further saving product space.

[0079] The fan 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 fan 20 is located below the second cover 12, and the channel inlet 211 is connected to the air outlet 121 in a vertically connected manner. The fan 20 is located above the air inlet duct 21, and the air intake of the fan 20 is connected to the channel outlet 212 in a vertically connected manner. The air outlet duct 22 is provided on the side of the fan 20 facing away from the air duct cavity 10, and is used for exhausting air from the fan 20. This structure realizes a compact layout of the airflow system of the cleaning device, further saving product space volume.

[0080] Optionally, the fan 20 is a centrifugal fan, which can have greater wind pressure and driving force to better meet the driving requirements of more than two channels.

[0081] Further optionally, a recess 14 is provided on the side wall of the first cover 11 and the second cover 12 facing away from the dust box 30 and the sewage box 40 at a position corresponding to the air outlet 121, and a portion of the fan 20 is embedded in the recess 14 to further save the spatial volume of the product.

[0082] The following, taking the first damper 13A and the first air inlet 111A as an example, and referring to Figures 13 to 20 , further illustrates the coordination between the first damper 13A and the first air inlet 111A, the movement of the first damper 13A, the linkage connection structure between the first damper 13A and the middle sweep assembly 2, and the installation structure of the first damper 13A and the air duct cavity 10. It is understood that, unless there is a conflict, the following illustration of the first damper 13A can be used to provide an equivalent or similar understanding of the structure and movement of the second damper 13B and the linkage connection structure between the second damper 13B and the wash and mop assembly 3.

[0083] For example, a guide hole 122 is provided on the second cover 12 of the air duct cavity 10 corresponding to each damper, and a guide rod 123 is provided on each damper. The guide rod 123 is disposed in the guide hole 122 and can move axially along the guide hole 122. That is, the first damper 13A and / or the second damper 13B are both provided with a guide hole 122, and the first damper 13A and / or the second damper 13B are provided with a guide rod 123. The guide rod 123 is disposed in the guide hole 122 and can move axially along the guide hole 122. In this way, each damper, such as the first damper 13A and / or the second damper 13B, reciprocates axially along the guide hole 122 along with the guide rod 123 to switch between an open position and a closed position. Among them, the guide rod 123 and the guide hole 122 are used to guide the displacement movement of each damper, so that each damper will not shake at will during the displacement movement, and the matching accuracy of each damper and the corresponding air inlet can be better guaranteed, so as to correspondingly ensure the sealing effect of the air inlet.

[0084] Optionally, the guide rod 123 is a metal rod, which makes the guiding effect on the first damper 13A and / or the second damper 13B more reliable and precise, and is also beneficial to improving the bearing capacity of the first damper 13A to bear wind pressure when it is shielding the first air inlet 111A and / or the second damper 13B when it is shielding the second air inlet 111B, thereby improving the sealing reliability of the first damper 13A and / or the second 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 body 12, and the axial direction of the guide hole 122 is specifically configured along the lifting direction, so that the movement of the guide rod 123 along the guide hole 122 is roughly consistent with the lifting and lowering movement direction of the middle sweep assembly 2, and the first air gate 13A is located in the air duct cavity 10, and the first air gate 13A is provided at one axial end of the guide rod 123, and the other axial end of the guide rod 123 extends out of the air duct cavity 10 through the guide hole 122, and a fixed seat 126 is provided at the end of the guide rod 123 away from the first air gate 13A, and an elastic member 125 is abutted against the fixed seat 126 and the air duct cavity 10.

[0087] The linkage connection structure between the first damper 13A and the middle sweep assembly 2 is specifically configured to include a middle sweep top rod 54 and the aforementioned elastic member 125. The middle sweep top rod 54 is disposed on the middle sweep assembly 2 and is disposed vertically opposite to a fixing seat 126. When the middle sweep assembly 2 rises, the middle sweep top rod 54 rises along with the middle sweep assembly 2. Since the middle sweep top rod 54 and the fixing seat 126 are vertically opposite, the middle sweep top rod 54 presses upward on the fixing seat 126 during its rise, causing the fixing seat 126 to resist the elastic force of the elastic member 125 and drive the guide rod 123 and the first damper 13A upward. As a result, the first damper 13A, driven by the middle sweep top rod 54, reaches a closed position that shields the first air inlet 111A. When the middle sweep assembly 2 needs to perform cleaning work, the middle sweep assembly 2 descends to contact the ground, and the middle sweep top rod 54 descends together with the middle sweep assembly 2. At this time, the middle sweep top rod 54 gradually loosens the fixing seat 126, and the fixing seat 126 moves downward under the elastic force of the elastic member 125. Accordingly, the guide rod 123 and the first damper 13A move downward together, realizing that the first damper 13A is reset to the open position of opening the first air inlet 111A.

[0088] It can be understood that the linkage connection structure between the second air door 13B and the washing and mopping assembly 3 is correspondingly understood to include the washing and mopping 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 shown in Figure 5, the middle sweep component 2 is raised and the washing and mopping component 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 component 3 are connected, and the first sewage inlet 512 of the middle sweep component 2 is not connected to the fan 20, and the cleaning device is in single-washing mode.

[0091] Second, as shown in Figure 6, the middle sweeping assembly 2 is lowered and the washing and mopping assembly 3 is raised. At this time, the first air door 13A is lowered and the second air door 13B is raised. 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 assembly 2 is connected, and the second sewage inlet 612 of the washing and mopping assembly 3 is not connected to the fan 20, and the cleaning device is in single sweeping mode.

[0092] Third, as shown in Figure 7, 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 accordingly, 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. The cleaning device is in the 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 simultaneously.

[0093] Fourth, as shown in Figure 8, 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 accordingly, the first air inlet 111A and the second air inlet 111B are both closed. The cleaning device can be in 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 scenarios where it is walking over obstacles or returning to the base station for recharging after completing the cleaning task, thereby avoiding secondary dirtiness of 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 be adjusted based on demand to drive the first damper 13A to reset to the closed position. The push rod is provided on the cleaning assembly. When the cleaning assembly moves downward, the push rod resists the elastic force of the elastic member 125 to drive the first damper 13A to move to the open position. The movement direction of the first damper 13A is also not limited to the listed lifting direction. In other embodiments, the first damper 13A can also be configured to control the opening or closing of the corresponding first air inlet 111A through horizontal reciprocating motion. The cleaning assembly drives the first damper 13A to move horizontally during the lifting movement of the cleaning assembly through the push rod and a set of transmission inclined surfaces.

[0095] Of course, the movement form of the first damper 13A is not limited to the reciprocating displacement movement form listed. In other embodiments, the first damper 13A can also be configured to rotate relative to the air duct cavity 10, and switch between a closed position and an open position by rotation. A transmission mechanism is provided on the cleaning component that can drive the first damper 13A to rotate as the cleaning component moves up and down, so that the first damper 13A responds to the lifting and lowering movement of the cleaning component to control the opening or closing of the first air inlet 111A.

[0096] Further optionally, a guide groove 124 with an outward opening is provided on the bottom wall of the second cover 12 of the air duct cavity 10, the guide hole 122 is located on and penetrates the bottom wall of the guide groove 124, and the fixing seat 126 and the elastic member 125 are located in the guide groove 124. The fixing seat 126 can move along the guide groove 124 and is adapted to guide the guide groove 124. By the fixing seat 126 and the guide groove 124, a larger axial displacement stroke can be provided for the guide rod 123, while ensuring a more precise coaxial fit between the guide rod 123 and the guide hole 122, so that the guide rod 123 will not deflect at will, thereby correspondingly improving the smoothness of the movement of the first damper 13A, so that the first damper 13A is not easily deflected or shaken during the displacement movement.

[0097] Optionally, the guide groove 124 may be configured as a rectangular groove as shown in FIG. 18 , and correspondingly, the fixing seat 126 may be configured as a rectangular block.

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

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

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

[0101] For example, the axial direction of the guide hole 122 can be roughly understood as corresponding to the OB direction as shown in Figure 19. The setting direction of the damper is, for example, the OA direction, and OB is set at an angle to OA, that is, the value of ∠AOB is greater than 0°. The setting direction of the first air inlet 111A is such as the X1-X2 direction, and the X1-X2 direction is roughly parallel to the OA direction, and thus is also inclined relative to the OB direction. In this way, starting from the state shown in Figure 20, when the 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 damper 13A is roughly obliquely close to the sealant 112 at the first air inlet 111A, so that the first 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 damper 13A, the lateral shear force of the first damper 13A on the sealant 112 can be reduced, and the friction between the first damper 13A and the sealant 112 is reduced, thereby better extending the life of the sealant 112.

[0102] As shown in Figures 17 and 18, in order to achieve a smoother displacement movement of the first air door 13A, limiting ribs 132 are provided on opposite sides of the first air door 13A, wherein limiting grooves 129 are provided on the second cover body 12 of the air duct cavity 10 corresponding to each limiting rib 132. The limiting grooves 129 can be set to C-shaped grooves as shown in Figure 17. The limiting ribs 132 at both ends of the baffle of the first air door 13A are correspondingly inserted into the corresponding limiting grooves 129. During the displacement movement of the first air door 13A, the limiting ribs 132 slide along the limiting grooves 129, thereby limiting the position of the first air door 13A, making it difficult for the first air door 13A to shake at will, thereby improving stability.

[0103] Optionally, the limiting ribs 132 at the left and right ends of the first damper 13A are connected to the limiting grooves 129 in the second cover body 12, and a 0.2mm gap is designed on one side between the limiting ribs 132 and the limiting grooves 129. The gap between the guide rod 123 and the guide hole 122 is matched, and a 0.05mm gap is designed on one side. This ensures that the first damper 13A installed in the second cover body 12 can be smoothly raised and lowered along the axis of the guide hole 122 with very little shaking.

[0104] As shown in Figures 19 and 20, in order to achieve the stability and sealing strength of the first damper 13A at the position of blocking the first air inlet 111A, a first buckle 128 is provided on the air duct cavity 10, and a second buckle 131 is provided on the first damper 13A. When the first damper 13A moves to the closed position that completely blocks the first air inlet 111A, the first buckle 128 and the second buckle 131 are buckled to lock the first damper 13A and the air duct cavity 10 together (as shown in Figure 19). In this way, the first damper 13A can better withstand wind pressure and is not prone to shaking or air leakage gaps driven by wind pressure. When the first damper 13A moves from the closed position that blocks the first air inlet 111A to the open position that opens the first air inlet 111A, the first buckle 128 and the second buckle 131 are disengaged (as shown in Figure 20).

[0105] Optionally, the first snap-fitting portion 128 and the second snap-fitting portion 131 may be hook structures that match each other. By hooking and cooperating with the first snap-fitting portion 128 and the second snap-fitting portion 131, the first damper 13A may be promoted to be stable, so that when the fan 20 is running in the state where the first damper 13A covers the first air inlet 111A, good sealing can be maintained at the first air inlet 111A.

[0106] Further optionally, the dust box 30 includes a first inclined surface 33, which is located around the dust box outlet 32. The first air inlet 111A is disposed opposite the dust box outlet 32. The end of the sealant 112 away from the first damper 13A is inclined and abuts against the first inclined surface 33. This can reduce the tangential force on the sealant 112 when the dust box 30 is removed and placed, thereby ensuring the life of the sealant 112.

[0107] Optionally, the sewage tank 40 includes a second inclined surface 43 located around the sewage tank outlet 42. The second air inlet 111B is disposed opposite the sewage tank outlet 42. The end of the sealant 112, distal from the second damper 13B, is inclined and abuts against the second inclined surface 43. This reduces tangential forces on the sealant 112 when the sewage tank 40 is removed or placed, thereby ensuring the life of the sealant 112.

[0108] 10 to 12 , the corresponding structures for realizing the lifting movement of the middle sweep assembly 2 and / or the washing and mopping assembly 3 relative to the bottom shell 4 will be described with examples.

[0109] The middle sweep assembly 2 includes a cavity portion (the cavity portion of the middle sweep assembly 2 can be specifically understood as the 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 the 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] A swing shaft is also provided on the middle sweep cavity 51 (the swing shaft of the middle sweep assembly 2 can be specifically understood as the middle sweep swing shaft 511). The number of the middle sweep swing shafts 511 can be set to two as shown in Figure 10. The two middle sweep swing shafts 511 are respectively connected to the bottom shell 4 for rotation, 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 further 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 via 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. The roller 538 is embedded in the fixed 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. The rocker 537 swings to drive the middle sweep cavity 51 to swing up and down around the middle sweep swing axis 511 relative to the bottom shell 4.

[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 transmission path of the motor 531-first synchronous belt 532-one-way bearing 536-crank 539-rocker 537 is used to drive the rocker 537 to swing, so that the middle sweep assembly 2 as a whole is driven to swing relative to the bottom shell 4 based on the middle sweep swing axis 511 through the swing of the rocker 537, 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 sweep assembly 2 will not rotate under the drive of the motor 531. Therefore, the middle sweep assembly 2 will not rise or fall under the drive of the motor 531. At this time, the transmission path of the motor 531-first synchronous belt 532-second synchronous belt 533-middle sweep shaft-middle sweep roller brush 52 is used to drive the middle sweep roller brush 52 to rotate to clean the floor.

[0116] A central sweep rod 54 is provided on the central sweep chamber 51. This rod corresponds to a fixed seat 126 within the guide groove 124 at the bottom of the air duct chamber 10. When the central sweep assembly 2 ascends, the central sweep rod 54 rises accordingly, lifting the fixed seat 126 to which the damper is connected via the guide rod 123. This allows the damper to cover the first air inlet 111A under the drive of the fixed seat 126. When the central sweep assembly 2 descends, the central sweep rod 54 releases the fixed seat 126. At this point, the guide rod 123 descends under the drive of the elastic member 125, causing the damper to descend accordingly, opening the first air inlet 111A.

[0117] It can be understood that the washing and mopping assembly 3 has a lifting function similar to that of the middle sweeping assembly 2. In the absence of conflict, the washing and mopping assembly 3 can also have corresponding structural features such as a washing and mopping cavity 61 (i.e., the cavity part), a washing and mopping roller brush 62 (i.e., the cleaning unit) accommodated in the washing and mopping cavity 61, a washing and mopping lifting mechanism arranged at one end of the washing and mopping cavity 61, a washing and mopping top rod 64 arranged on the washing and mopping cavity 61, a washing and mopping swing shaft 611 (i.e., the swing shaft), and a second sewage inlet 612. The connection relationship and position of these structural features can be roughly understood by referring to the relevant description of the middle sweeping assembly 2 for adaptive understanding, and will not be repeated here.

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

[0119] Another embodiment 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 raised position and a lowered position, as shown in FIG21 . The control method includes the following steps:

[0120] S100, detecting the position of each cleaning component;

[0121] It is understood that the lowered position of the cleaning component can be understood as the position where the cleaning component is lowered to contact the ground, and the raised position of the cleaning component can be understood as the position where the cleaning component is raised to leave the ground. In some possible implementations, the position detection of the cleaning component can be achieved by using a position sensor, so that when the cleaning component reaches the lowered position and / or raised position, the position sensor responds by sending a corresponding signal to achieve the purpose of position detection. Of course, in other possible implementations, the lifting and lowering movement of the cleaning component is achieved by motor drive, and the current position of the cleaning component is correspondingly identified by detecting the rotation angle of the motor.

[0122] S200: If it is detected that at least one of the cleaning components is in the lowered position, the fan is controlled to be turned on; if it is detected that all of the cleaning components are in the raised position, the fan is controlled to be turned off.

[0123] Regarding controlling the fan to turn on when it is detected that at least one cleaning component is in a lowered position, it can be understood that since the cleaning component is connected to the corresponding air door through a linkage connection structure, when the cleaning component is in a lowered position, the corresponding air door will be automatically linked to the open position. At this time, directly turning on the fan can provide negative pressure for the cleaning component to meet cleaning needs without the need to drive the control step of the air door. The control logic is simpler, and the mode switching response of the cleaning device is faster and more accurate.

[0124] As for controlling the fan to turn off when it is detected that all cleaning components are in the raised position, it can be understood that since each cleaning component is connected to the corresponding air door through a linkage connection structure, when the cleaning components are all in the raised position, the corresponding air door will be automatically linked to the closed position. At this time, turning off the fan can avoid the fan idling, and there is no need to drive the control steps of each air door. The control logic is simpler, and the mode switching response of the cleaning device is 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 various forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

Claims

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

2. The cleaning device according to claim 1, characterized in that The cleaning device includes two or more of the cleaning components, and a damper is configured between the suction port of the same blower and the dirt inlets of each cleaning component, and the linkage connection structure is provided between each cleaning component and the corresponding damper.

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

4. The cleaning device according to claim 3, characterized in that The damper is configured to be able to move up and down, and switches to the closed position by upward movement and switches to the open position by downward movement; The transmission part includes a push rod, the push rod is arranged on the cleaning component to rise or fall together with the cleaning component, and the 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: An air duct cavity, an air outlet and at least one air inlet are provided on the air duct cavity, the air inlet is communicated with the dirt inlet of the corresponding cleaning component, and the air outlet is communicated with the suction port; The damper is movably connected to the air duct cavity, and the damper is correspondingly arranged with the air inlet, wherein, the damper is in transmission connection with the linkage connection structure, and the damper controls the corresponding air inlet to be opened or closed under the drive of the linkage connection structure, so that the suction port and the corresponding dirt inlet are communicated or cut off.

6. The cleaning device according to claim 5, characterized in that A guide hole is provided on the air duct cavity corresponding to each damper, a guide rod is provided on the damper, and the guide rod passes through the guide hole and can move along the axial direction of the guide 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; Two or more of the air inlets are provided on the air duct cavity, and each of the air inlets is correspondingly provided with the air damper. Each of the air inlets 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 portion, a motor, a crank, and a rocker; A cleaning unit is provided within the cavity portion. A swing shaft is provided on the cavity portion, and the swing shaft is rotatably connected to the bottom case. The transmission portion is provided on the cavity portion and moves synchronously with the cavity portion; 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 portion 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 according to any one of claims 1 to 10, wherein the lifting movement of the cleaning assembly has a lifting position and a lowering position, and is characterized in that, The control method includes the following steps: Detect the positions of the respective 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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