Control method of surface cleaning device

Abstract

The invention provides a control method of a surface cleaning device, the surface cleaning device comprises a cleaning machine, the cleaning machine comprises a machine body and a ground brush which are pivotally connected, and the ground brush comprises a movable cleaning piece, a dirt suction port located in the rear side of the cleaning piece and a ground scraping strip arranged below the dirt suction port; the surface cleaning device comprises a cleaning machine, the cleaning machine comprises a machine body and a ground brush which are connected in a pivoted mode, and the ground brush comprises a movable cleaning piece, a dirt suction opening located in the rear side of the cleaning piece and a ground scraping strip arranged below the dirt suction opening. According to the cleaning device, liquid flowing back from the dirt suction pipeline can be absorbed, and the liquid flowing back from the dirt suction pipeline is prevented from flowing back to the base or the surface to be cleaned.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to a control method for a surface cleaning device. Background Technology

[0002] Generally, surface cleaning devices include a base and a cleaning machine. The cleaning machine has a body and a floor brush, with a suction port on the floor brush. The body has a suction fan, a wastewater tank, and a suction pipe that connects to the suction port and the wastewater tank. When the suction fan is running, it can draw liquid into the wastewater tank through the suction port and the suction pipe.

[0003] However, when the suction fan stops running upon receiving a shutdown signal, the liquid in the suction pipe that has not yet been sucked into the wastewater tank will flow back to the base or the surface to be cleaned. Furthermore, in existing technology, to address the issue of wastewater backflow, the suction motor is controlled to run for a short period upon receiving a shutdown signal to try and draw as much waste as possible from the suction pipe into the wastewater tank. However, because the delay time of the suction motor is short, and the waste remaining in the suction pipe is usually in droplet form, it is difficult to collect it into the wastewater tank in a short time. Alternatively, when the machine is nearly upright and the suction fan's operating power is low, the liquid in the suction pipe cannot be drawn into the wastewater tank, and the waste in the suction pipe will still flow back to the base or the surface to be cleaned.

[0004] When liquid flows back onto the surface to be cleaned, it affects the cleaning effect; when liquid flows back onto the base, the user needs to manually wipe it away, reducing the user experience. Therefore, how to effectively prevent liquid from flowing back from the suction pipe onto the base or the surface to be cleaned is an urgent problem to be solved. Summary of the Invention

[0005] The purpose of this application is to provide a control method for a surface cleaning device, which can absorb liquid flowing back from the suction pipe, thereby preventing the liquid flowing back from the suction pipe from flowing back to the base or the surface to be cleaned.

[0006] This application provides a control method for a surface cleaning device. The surface cleaning device includes a cleaning machine, which includes a pivotally connected body and a floor brush. The floor brush includes a movable cleaning component, a suction port located behind the cleaning component, and a floor scraper strip located below the suction port. The control method for the surface cleaning device includes:

[0007] The cleaning component is controlled to switch between a first state and a second state; in the first state, the cleaning component is in contact with the floor squeegee; in the second state, the cleaning component is separated from the floor squeegee.

[0008] In one embodiment, the surface cleaning device further includes a scraper, which controls the cleaning member to rotate in the reverse direction before the cleaning member switches from the second state to the first state; wherein the cleaning member abuts against the scraper when rotating in the reverse direction.

[0009] In one embodiment, the cleaning machine further includes a suction fan connected to the suction port, and the suction fan is at least in operation when the cleaning unit is in the first state.

[0010] In one embodiment, when the duration of the suction fan's shutdown reaches a first preset duration, the cleaning component is switched from a first state to a second state.

[0011] In one embodiment, when the cleaning component is in a first state, it is controlled to rotate at a first speed V1, and when the cleaning component is in a second state, it is controlled to rotate at a second speed V2; wherein, the first speed V1 is less than the second speed V2.

[0012] In one embodiment, the surface cleaning device receives a first signal to control the cleaning component to switch from a second state to a first state.

[0013] In one embodiment, the surface cleaning device receives a second signal to control the cleaning component to switch from a first state to a second state.

[0014] In one embodiment, the cleaning component switches from the second state to the first state by moving horizontally, or the cleaning component switches from the second state to the first state by moving downward.

[0015] In one embodiment, the squeegee includes a water-spreading squeegee located above the cleaning member. When the cleaning member is in a second state, it abuts against the water-spreading squeegee, and when the cleaning member is in a first state, it separates from the water-spreading squeegee.

[0016] In one embodiment, the surface cleaning device further includes a detection module that detects that the cleaning component is in a first state, but the cleaning component and the floor squeegee are in a non-contact state, and controls the rotation of the cleaning component.

[0017] In this solution, by controlling the cleaning component to be in its first state, allowing it to contact the floor squeegee, liquid flowing back along the suction pipe can exit through the suction port and, guided by the floor squeegee, flow back onto the cleaning component where it is absorbed. This effectively prevents the backflowing liquid from flowing back onto the surface to be cleaned or the base. This ensures effective cleaning of the surface while eliminating the need for manual wiping of the base surface, thus improving the user experience. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly described below.

[0019] Figure 1 A schematic diagram of the surface cleaning device provided in this application;

[0020] Figure 2 This is a structural schematic diagram of the cleaning machine provided in this application;

[0021] Figure 3 A partial cross-sectional view of the cleaning machine when the cleaning component provided in this application is in the second state;

[0022] Figure 4 Flowchart of the control method for the surface cleaning apparatus provided in this application Figure 1 ;

[0023] Figure 5 A partial cross-sectional view of the cleaning machine when the cleaning component provided in this application is in the first state;

[0024] Figure 6 A partial cross-sectional view of the cleaning apparatus when the cleaning component provided in this application is in the second state;

[0025] Figure 7 A partial cross-sectional view of the cleaning apparatus when the cleaning component provided in this application is in its first state;

[0026] Figure 8 Flowchart of the control method for the surface cleaning apparatus provided in this application Figure 2 ;

[0027] Figure 9 Flowchart of the control method for the surface cleaning apparatus provided in this application Figure 3 ;

[0028] Figure 10 Flowchart of the control method for the surface cleaning apparatus provided in this application Figure 4 ;

[0029] Figure 11 Flowchart of the control method for the surface cleaning apparatus provided in this application Figure 5 ;

[0030] Figure 12 An exploded view of the floor brush provided in this application;

[0031] Figure 13 for Figure 12 A magnified view of a portion of the image;

[0032] Figure 14 A schematic diagram of the structure of the first mounting slot provided in this application.

[0033] Figure label:

[0034] 1-Surface cleaning device; 10-Cleaning machine; 20-Base; 100-Main body; 110-Handle; 120-Sewage tank; 130-Sewage suction fan; 200-Floor brush; 201-Washing tank; 202-Air outlet; 210-Cleaning component; 220-Sewage suction port; 230-Liquid supply component; 240-Water distribution squeegee; 250-Scraping squeegee; 2501-First scraping squeegee; 2502-Second scraping squeegee; 260-Floor scraper; 270-Cavity; 280-First base ; 290-First connector; 291-First mounting groove; 2101-First connecting rod; 2102-Second connecting rod; 2103-Drive motor; 2801-First semi-circular groove; 2802-First transmission rod; 2803-First slider; 2804-First worm gear; 2805-First driving component; 2901-Second semi-circular groove; 28011-First end; 28021-First mating hole; 28022-First output end; 28041-First inner hole. Detailed Implementation

[0035] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0036] Similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Example 1:

[0038] This embodiment provides a surface cleaning device 1, such as... Figure 1 As shown, the surface cleaning device 1 in this embodiment includes a base 20 and a cleaning machine 10. The cleaning machine 10 is used to clean the ground surface waiting to be cleaned. When the cleaning machine 10 is placed on the base 20, the base 20 can perform maintenance operations such as self-cleaning, drying and charging of the cleaning machine 10.

[0039] like Figure 2 As shown, the cleaning machine 10 includes a control unit (not shown), a pivotally connected body 100, and a floor brush 200. The control unit can be mounted on either the body 100 or the floor brush 200. The body 100 has a handle 110 for the user to hold. Figure 2 and Figure 3As shown, the floor brush 200 is equipped with a cleaning component 210 and a drive motor (not shown) connected to the cleaning component 210. The drive motor is connected to a control unit and is used to drive the cleaning component 210 to rotate under the control of the control unit. For example, the cleaning component 210 can be any cleaning tool that can be used to wipe the floor or other surfaces waiting to be cleaned, such as a single roller brush, a double roller brush, or a tracked cleaning cloth.

[0040] like Figure 2 and Figure 3 As shown, the cleaning machine 10 is also equipped with a suction assembly, which includes a suction port 220, a suction pipe (not shown in the figure), a wastewater tank 120, and a suction fan 130. The suction port 220 is located on the floor brush 200 and behind the cleaning component 210. The wastewater tank 120 and the suction fan 130 are located on the machine body 100. The suction pipe is connected to the suction port 220 and the wastewater tank 120. The suction fan 130 is connected to the wastewater tank 120 and is connected to the control unit. The suction fan 130 is used to draw liquid into the wastewater tank 120 through the suction port 220 and the suction pipe under the control of the control unit.

[0041] like Figure 2 and Figure 3 As shown, the cleaning machine 10 is also equipped with a floor scraper 260, which is located on the floor brush 200 and below the suction port 220. Specifically, the floor scraper 260 can be made of flexible materials such as soft rubber.

[0042] like Figure 3 As shown, the cleaning machine 10 is also equipped with a liquid supply component 230. The liquid supply component 230 is located on the floor brush 200, behind the cleaning component 210, and above the suction port 220. The liquid supply component 230 is used to supply liquid to the cleaning component 210 or the surface to be cleaned at a certain flow rate under the control of the control unit. This embodiment uses the liquid supply component 230 supplying liquid to the cleaning component 210 as an example to illustrate the solution.

[0043] The cleaning machine 10 is also equipped with a scraping blade 250, which is located behind the cleaning component 210 and is used to remove dirt attached to the cleaning component 210. For example, the floor brush 200 may have only one scraping blade 250, which is a straight, ordinary scraping blade used to scrape away dirt on the cleaning component 210; alternatively, the scraping blade 250 may be a toothed scraping blade. Alternatively, such as... Figure 3As shown, the floor brush 200 may also be equipped with two squeegee blades 250, namely a first squeegee blade 2501 and a second squeegee blade 2502. The first squeegee blade 2501 is a straight, ordinary blade used to scrape the dirt on the cleaning component 210; the second squeegee blade 2502 is a comb-tooth blade used to remove hair from the cleaning component 210. The first squeegee blade 2501 and the second squeegee blade 2502 may be approximately on the same plane in the longitudinal direction, with the first squeegee blade 2501 located above the second squeegee blade 2502; or, the first squeegee blade 2501 may be located below the second squeegee blade 2502.

[0044] As an optional solution in this embodiment, such as Figure 3 As shown, the cleaning machine 10 is also provided with a water distribution scraper 240, which is located above the cleaning component 210 and is used to make the liquid supplied by the liquid supply component 230 evenly distributed on the cleaning component 210.

[0045] It is understandable that the floor brush 200 may be provided with a cavity 270, in which the cleaning component 210, suction port 220, scraping blade 250, water distribution blade 240 and liquid supply component 230 may be located; the bottom of the cavity 270 is open so that when the cleaning component 210 is located in the cavity 270, the bottom of the cleaning component 210 can be exposed to contact the surface to be cleaned for cleaning.

[0046] In practice, when the cleaning machine 10 is placed on the surface to be cleaned, the control unit controls the suction fan 130 to operate and simultaneously controls the drive motor to drive the cleaning component 210 to rotate. At the same time, during the rotation of the cleaning component 210, the control unit controls the liquid supply component 230 to supply liquid to the cleaning component 210 at a certain flow rate, keeping the cleaning component 210 moist. The moistened cleaning component 210 generates physical friction with the surface to be cleaned during rotation, wiping the surface. During the cleaning process, the user holds the handle 110 and continuously pushes and pulls the body 100 to change the direction of movement of the cleaning machine 10. The cleaning component 210 wipes various areas of the surface to be cleaned during the movement of the cleaning machine 10, removing dirt from the surface. During the removal of dirt, dirt may adhere to the cleaning component 210 or the surface to be cleaned. The scraping component scrapes the cleaning component 210 during its rotation, scraping off some of the dirt. Simultaneously, during the cleaning process, there is a gap between the cleaning component 210 and the floor scraper 260 to allow dirt from the surface to be cleaned and / or on the cleaning component 210 to enter the suction channel through the gap. Specifically, during the operation of the suction fan 130, dirt on the surface to be cleaned and dirt scraped off from the cleaning component 210 can enter the suction port 220 through the aforementioned gap and flow into the wastewater tank 120 along the suction pipe. Repeat the above process until the cleaning of the surface is complete.

[0047] After cleaning the surface to be cleaned, the cleaning machine 10 can be placed on the base 20, so that the base 20 can perform maintenance operations such as charging, self-cleaning and drying of the cleaning machine 10.

[0048] However, in practice, when the cleaning machine 10 is placed on the base 20 or the surface to be cleaned, and the suction fan 130 stops running, the liquid in the suction pipe that has not yet been sucked into the wastewater tank 120 will flow back to the base 20 or the surface to be cleaned through the suction pipe and the gap between the cleaning component 210 and the floor scraper 260. Furthermore, when the cleaning machine 10 is placed on the base 20 or the surface to be cleaned, the machine body 100 is nearly upright, and the operating power of the suction fan 130 is low, the liquid in the suction pipe cannot be sucked into the wastewater tank 120, and will also flow back to the base 20 or the surface to be cleaned through the suction pipe and the gap between the cleaning component 210 and the floor scraper 260.

[0049] When the liquid flows back onto the surface to be cleaned, it affects the cleaning effect; when the liquid flows back onto the base 20, the user needs to manually wipe away the backflowed liquid, which reduces the user experience.

[0050] To address the aforementioned problems, this embodiment provides a movable cleaning component 210 that changes the relative positional relationship between the cleaning component 210 and the floor squeegee 260 by moving the cleaning component 210, allowing the cleaning component 210 to have a first state of contact with the floor squeegee 260 and a second state of separation from the floor squeegee 260. A control method for the surface cleaning device 1 is also provided, executed by the aforementioned control unit. The working principle of this method is explained in detail below:

[0051] like Figure 4 As shown, the method includes the following step S10:

[0052] Step S10: Control the cleaning component 210 to switch between the first state and the second state.

[0053] Among them, such as Figure 5 As shown, when the cleaning component 210 is in the first state, the cleaning component 210 abuts against the floor scraper strip 260; as Figure 3 As shown, when the cleaning component 210 is in the second state, the cleaning component 210 is separated from the floor scraper 260.

[0054] In this step, when it is necessary to suck the dirt into the suction port 220, the control unit can control the cleaning component 210 to be in the second state, so that a gap is formed between the cleaning component 210 and the floor scraper 260, and the sucked dirt can enter the suction port 220 through the gap. When liquid backflow may occur in the suction pipe, the control unit can control the cleaning component 210 to be in the first state, so that the cleaning component 210 abuts against the floor scraper 260, so that the liquid backflowing along the suction pipe can flow back along the suction port 220 and the floor scraper 260 to the cleaning component 210, thereby effectively reducing the probability of the backflowing liquid flowing back to the surface to be cleaned or the base 20, and keeping the surface to be cleaned and / or the base 20 as clean as possible.

[0055] The solution in this step will be explained in detail below with reference to specific use cases:

[0056] (1) When the cleaning machine 10 is off, the machine body 100 is usually in an upright position. When the user turns on the cleaning machine 10, the control unit controls the suction fan 130 to start running. At the same time, in order to facilitate cleaning the surface to be cleaned, the user will gradually adjust the machine body 100 from an upright position to a tilted position. In practice, when the cleaning machine 10 is turned on, in order to protect the suction fan 130, it will not immediately control the suction fan 130 to run at high power, but will gradually increase the operating power of the suction fan 130 to a standard value. However, in order to enable the cleaning component 210 to meet the cleaning needs as soon as possible, in response to the start signal, the liquid supply component 230 starts to supply liquid to the cleaning component 210 so that it is quickly wetted and the cleaning efficiency is improved. As an optional solution in this embodiment, in response to the start signal, the liquid supply component 230 first supplies liquid to the cleaning component 210 at a large flow rate to quickly wet the cleaning component 210, and after supplying liquid at a large flow rate for a period of time, supplies liquid to the cleaning component 210 at a relatively small flow rate. However, when the user adjusts the machine body 100 to a near-vertical position, the vertical distance between the suction pipe outlet and the suction port 220 is relatively large. This means that more work needs to be done to overcome the gravity of the dirt at the suction port 220 and draw it into the wastewater tank 120. If the operating power of the suction fan 130 has not yet reached the standard value (i.e., the suction fan 130 is operating at a relatively low power), it is difficult to draw the dirt into the wastewater tank 120. Some dirt may remain in the suction port 220, and some dirt in the suction pipe may even flow back along the suction pipe due to insufficient suction. Therefore, when the cleaning machine 10 is turned on, the control unit can control the cleaning component 210 to be in the first state, allowing the cleaning component 210 to contact the floor scraper 260. This allows the wastewater flowing back along the suction pipe to flow back along the suction port 220 and the floor scraper 260 onto the cleaning component 210, effectively preventing the wastewater from flowing back onto the surface to be cleaned and ensuring the cleaning effect on the surface.

[0057] After startup, when the operating power of the suction fan 130 rises to the standard value and runs stably, the control unit can control the cleaning component 210 to switch from the first state to the second state so that a gap is formed between the cleaning component 210 and the floor scraper 260. The sewage generated during the cleaning process can enter the suction port 220 through the gap, ensuring the smooth progress of the cleaning work.

[0058] (2) In response to a power-off or standby signal, when the cleaning machine 10 temporarily stops operating, i.e., the cleaning machine 10 enters a standby state, or when the cleaning machine 10 completes the cleaning work on the surface to be cleaned and enters a power-off state, the control unit will also control the suction fan 130 to stop operating. Those skilled in the art will know that controlling the suction fan 130 to stop operating can be done by controlling the suction fan 130 to gradually stop operating, i.e., controlling the operating power of the suction fan 130 to gradually decrease until it is zero; or by controlling the suction fan 130 to stop operating directly.

[0059] When the suction fan 130 stops operating in response to a shutdown or standby signal, some unabsorbed liquid often remains in the suction pipe. This liquid usually adheres to the pipe wall in the form of small droplets. Even if the suction fan 130 runs for a period of time after receiving the shutdown or standby signal, it may still be unable to absorb the remaining liquid in the suction pipe into the wastewater tank 120 in a short period. Over time, the remaining liquid in the suction pipe will flow back down the suction pipe under the influence of gravity. Therefore, when the cleaning machine 10 enters standby mode or turns off mode, the control unit can control the cleaning component 210 to be in the first state. By making the cleaning component 210 in the first state, the cleaning component 210 comes into contact with the floor scraper 260, so that the sewage flowing back along the suction pipe can flow back along the suction port 220 and the floor scraper 260 to the cleaning component 210, effectively reducing the probability of sewage flowing back to the surface to be cleaned and ensuring the cleaning effect on the surface to be cleaned.

[0060] It is understandable that the machine body 100 can be equipped with software or hardware buttons, which users can trigger to put the cleaning machine 10 into standby or power-off mode. Alternatively, users can change the machine body 100 from a tilted to an upright position, and when the angle between the machine body 100 and the surface to be cleaned is greater than or equal to a preset value, the cleaning machine 10 will enter standby or power-off mode. Specifically, when the angle between the machine body 100 and the surface to be cleaned is greater than or equal to 75°, 80°, etc., the power-off or standby signal of the surface cleaning device 1 is triggered.

[0061] It is understandable that users may put the cleaning machine 10 into standby mode under the following circumstances:

[0062] (i) The surface to be cleaned is relatively large, and users become fatigued after cleaning for a period of time and need to rest for a while before continuing to clean the surface.

[0063] (ii) If the user has other things to do while the surface is being cleaned, the cleaning can continue only after those things are finished.

[0064] (3) The user's usage scenario changes. The user tilts the body 100 and holds the handle 110 of the body 100 to clean ordinary surfaces. When the user needs to clean surfaces in low spaces such as under beds and sofas, the body 100 will be in a flat position. When the body 100 is in a flat position, the body 100 is roughly parallel to the surface to be cleaned, or the angle between the body 100 and the surface to be cleaned is less than a preset value. Specifically, when the angle between the body 100 and the surface to be cleaned is less than 20°, 15°, 10° or 5°, it is considered that the surface cleaning device 1 is operating in a flat position to clean low areas. When the body 100 is in a flat position, the vertical distance between the suction port 220 and the suction pipe outlet becomes shorter. Compared with normal surfaces to be cleaned, in the flat position, only the suction fan 130 needs to be controlled to operate at a lower power to suck the sewage into the sewage tank 120. After cleaning the surfaces in the low-ceilinged space, the user continues to clean other areas within the space. To facilitate cleaning, the machine body 100 needs to be returned to its tilted position. When the machine body 100 is returned to its tilted position, the vertical distance between the suction port 220 and the suction pipe outlet increases, and the suction fan 130 needs to resume high-power operation to suck the sewage into the sewage tank 120. However, when the machine body 100 changes from a flat position to a tilted position, the suction fan 130 cannot be immediately adjusted to high-power operation. At this time, the liquid in the suction pipe cannot be sucked into the sewage tank 120, but will flow back along the suction pipe. Therefore, when the machine body 100 returns from a flat state to an inclined state, the control unit can switch the cleaning component 210 from the second state to the first state, so that the cleaning component 210 abuts against the floor scraper 260, so that the sewage flowing back along the suction pipe can flow back along the suction port 220 and the floor scraper 260 to the cleaning component 210, effectively preventing the sewage from flowing back onto the surface to be cleaned and ensuring the cleaning effect on the surface to be cleaned.

[0065] Once the body 100 has fully returned to its tilted position and the operating power of the suction fan 130 has stabilized, the control unit can switch the cleaning component 210 from the first state to the second state, so that a gap can be formed between the cleaning component 210 and the floor scraper 260. The sewage generated during the cleaning process can enter the suction port 220 through the gap, ensuring the smooth progress of the cleaning work.

[0066] As can be seen from the above (1)(2)(3), in this embodiment, the liquid flowing back into the suction pipe can be absorbed while ensuring the smooth progress of the cleaning work.

[0067] (4) After the cleaning machine 10 completes the cleaning of the surface to be cleaned, the user can place the cleaning machine 10 on the base 20, and the base 20 will perform self-cleaning, drying, and charging maintenance operations on the cleaning machine 10. Figure 6As shown, a cleaning tank 201 is provided on the base 20. When the cleaning machine 10 is placed on the base 20, the cleaning component 210 is located in the cleaning tank 201. When the base 20 performs a self-cleaning operation on the cleaning machine 10, the control unit controls the liquid supply component 230 to supply liquid into the cleaning tank 201 to clean the cleaning component 210. To ensure the cleaning effect on the cleaning component 210 and to facilitate the cleaning of the suction pipe and suction port 220, the suction fan 130 needs to promptly absorb the liquid in the cleaning tank 201 into the wastewater tank 120 during the self-cleaning process. Therefore, during the self-cleaning process of the cleaning machine 10, the control unit can control the cleaning component 210 to be in a second state so that a gap is formed between the cleaning component 210 and the floor scraper 260, allowing the suction fan 130 to absorb the liquid in the cleaning tank 201 into the wastewater tank 120 through the aforementioned gap.

[0068] When the base 20 finishes its self-cleaning operation on the cleaning machine 10, the operating power of the suction fan 130 gradually decreases until it eventually stops. At this time, the liquid in the suction pipe that has not yet been absorbed into the wastewater tank 120 will not be absorbed into the wastewater tank 120 but will flow back along the suction pipe. Therefore, when the base 20 finishes its self-cleaning operation on the cleaning machine 10, the control unit can control the cleaning component 210 to switch to the first state, so that the cleaning component 210 abuts against the floor scraper 260, allowing the liquid flowing back along the suction pipe to flow back along the suction port 220 and the floor scraper 260 to the cleaning component 210, effectively preventing the liquid from flowing back onto the base 20. When the self-cleaning operation on the cleaning machine 10 ends, the liquid in the suction pipe is already relatively clean, so when the liquid flows back onto the cleaning component 210, it will not contaminate the cleaning component 210.

[0069] In existing technologies, the method to avoid liquid backflow involves delaying the operation of the suction fan 130 for a period of time after the cleaning machine 10 is turned off, before gradually stopping the suction fan 130. However, this method can result in situations where the user has already turned off the cleaning machine 10 but the suction fan 130 is still running, leading to a poor user experience. Furthermore, existing technologies cannot solve all liquid backflow situations. For example, liquid backflow that occurs when the machine body 100 changes from a flat to an inclined position cannot be resolved using existing technologies, indicating that the applicable scenarios for existing technologies are limited. Additionally, to reduce noise, the operating power of the suction fan 130 during the delayed operation is relatively low. Since the tilt angle of the cleaning machine 10 is large when it is turned off, and the distance between the outlet of the suction pipe and the suction port 220 is large, the delayed operation of the suction fan 130 may still fail to absorb the backflowed liquid into the wastewater tank 120, thus failing to solve the liquid backflow problem. However, the method described in the above embodiments of this application can effectively solve the problem of liquid backflow in various scenarios, has a wider range of applications, and does not require the suction fan 130 to run for a delay, thus providing users with a better user experience.

[0070] It is understandable that after the base 20 finishes its self-cleaning operation on the cleaning machine 10, it will perform a drying operation on the cleaning machine 10. The specific drying method is as follows: Figure 6 and Figure 7 As shown, the cleaning tank 201 of the base 20 has an air outlet 202 on its tank wall. A drying assembly is installed inside the base 20. The drying assembly can be a fan, in which case it can output cold air through the air outlet 202; alternatively, the drying assembly can be a fan and a heating element, with the heating element positioned in the fan's air outlet path. The heating element heats the cold air output by the fan, and the resulting hot air is output through the air outlet 202. The air outlet 202 dries the cleaning machine 10 by outputting either the cold or hot air. When drying the cleaning machine 10, the main components to be dried are the cleaning component 210, the suction port 220, and the suction pipe. To facilitate the drying of these components, when the drying operation is started, the control unit can switch the cleaning component 210 from the first state to the second state so that a gap is formed between the cleaning component 210 and the suction port 220. The cold or hot airflow from the air outlet 202 can enter the suction port 220 and the suction pipe through the gap between the cleaning component 210 and the floor scraper 260 on the lower surface of the cleaning component 210.

[0071] Example 2:

[0072] Based on the above embodiments, this embodiment provides a control method for the surface cleaning device 1, such as... Figure 8As shown, the method includes the following steps S20 and S30:

[0073] Step S20: The surface cleaning device 1 receives the first signal and controls the cleaning component 210 to switch from the second state to the first state.

[0074] In this step, when the control unit receives the first signal, it indicates that the liquid in the suction pipe is prone to backflow. Therefore, in order to absorb the backflowing liquid in the suction pipe in a timely manner and prevent it from flowing back onto the surface to be cleaned or the base 20, the control unit can control the cleaning component 210 to switch from the second state to the first state. The first signal can be a power-on signal, a standby signal, a power-off signal, a self-cleaning end signal, or any other signal that causes the cleaning component 210 to switch states.

[0075] Step S30: The surface cleaning device 1 receives a second signal and controls the cleaning component 210 to switch from the first state to the second state.

[0076] In this step, when the control unit receives the second signal, it indicates that the liquid needs to be drawn into the suction port 220. To facilitate the drawing of liquid into the suction port 220, the control unit can control the cleaning component 210 to switch from the first state to the second state. The second signal can be a signal indicating stable operating power of the suction fan 130 after power-on, a signal indicating stable operating power of the suction fan 130 after the body 100 changes from a flat position to an inclined position, a self-cleaning activation signal, or other signals that cause the cleaning component 210 to switch states.

[0077] It is understandable that the second signal can also be a drying start signal. Upon receiving the drying start signal, the cleaning component 210 is switched from the first state to the second state, which is more conducive to drying the cleaning component 210, the suction port 220, and the suction pipe.

[0078] Example 3:

[0079] Based on the above embodiments, this embodiment provides a control method for the surface cleaning device 1, such as... Figure 9 As shown, the method includes the following steps S40 and S50. The working principle of the method will be explained in detail below:

[0080] Step S40: When the cleaning unit 210 is in the first state, at least the suction fan 130 is operating.

[0081] As can be seen from the above embodiments, when the cleaning machine 10 enters the standby state, or when the cleaning machine 10 completes the cleaning work and enters the power-off state, or when the base 20 completes the self-cleaning operation of the cleaning component 210, the control unit will control the cleaning component 210 to be in the first state, so that the cleaning component 210 abuts against the floor scraper 260 to absorb the liquid flowing back in the suction pipe. However, when there is a lot of liquid flowing back in the suction pipe, the cleaning component 210 alone may not be able to completely absorb the backflow liquid. When some of the backflow liquid is not absorbed, it will accumulate between the cleaning component 210 and the suction port 220. When the cleaning component 210 switches to the second state and separates from the floor scraper 260, the accumulated liquid will still flow back to the surface to be cleaned or the base 20 through the gap between the cleaning component 210 and the floor scraper 260.

[0082] Therefore, in this step, when the cleaning machine 10 enters standby mode, or when the cleaning machine 10 completes the cleaning work and enters the power-off mode, or when the base 20 completes the self-cleaning operation of the cleaning component 210, the control unit can control the cleaning component 210 to be in the first state and simultaneously control the suction fan 130 to run. After the suction fan 130 runs, it absorbs the backflow liquid by sucking it into the sewage tank 120; the backflow liquid that cannot be sucked into the sewage tank 120 by the suction fan 130 is absorbed by the cleaning component 210. It can be seen that in this step, the sewage tank 120 and the cleaning component 210 can absorb the backflow liquid at the same time, improving the absorption efficiency and effect of the backflow liquid, ensuring that the backflow liquid can be fully absorbed; and preventing the liquid accumulated when the cleaning component 210 switches to the second state from flowing back to the surface to be cleaned or the base 20.

[0083] In addition, as one implementation of this embodiment, when the cleaning component 210 is in the first state, it may simultaneously abut against the floor scraper 260 and the sludge scraper 250. At this time, the cleaning component 210, the suction port 220 and the suction pipe form a relatively closed space, which is more conducive to the suction fan 130 absorbing the liquid flowing back in the suction pipe into the sewage tank 120.

[0084] Step S50: When the duration of the suction fan 130 being stopped reaches the first preset duration, the cleaning component 210 is switched from the first state to the second state.

[0085] In this step, after the cleaning component 210 is in the first state and the suction fan 130 has been running for a second preset duration, the control unit can control the suction fan 130 to stop running. After the suction fan 130 stops running, the control unit can continue to control the cleaning component 210 to remain in the first state, so that the cleaning component 210 absorbs the residual backflow liquid in the suction pipe, further preventing the backflow liquid from flowing back to the surface to be cleaned or the base 20. After the suction fan 130 has been stopped for a first preset duration, the control unit can control the cleaning component 210 to switch to the second state.

[0086] When the cleaning machine 10 temporarily stops operating, the cleaning component 210 is switched to the second state, so that when the cleaning machine 10 resumes operation, it can directly clean the surface to be cleaned without switching the state of the cleaning component 210. When the cleaning machine 10 completes the cleaning work and enters the shutdown state, the cleaning component 210 is switched to the second state, so that the cleaning machine 10 can directly clean the surface to be cleaned without switching the state the next time it performs a cleaning work. After the base 20 completes the self-cleaning operation of the cleaning component 210, the cleaning component 210 is switched to the second state, creating a gap between the cleaning component 210 and the suction port 220, which facilitates the drying component to dry the suction port 220 and the suction pipe.

[0087] Example 4:

[0088] Based on the above embodiments, this embodiment provides a control method for the surface cleaning device 1, such as... Figure 10 As shown, the method includes the following step S60. The working principle of the method is explained below:

[0089] Step S60: Before the cleaning component 210 switches from the second state to the first state, the cleaning component 210 is controlled to rotate in the reverse direction; wherein, when the cleaning component 210 rotates in the reverse direction, it comes into contact with the scraping component.

[0090] In this step, when the cleaning component 210 is in the second state and separated from the floor scraper 260, the control unit can control the cleaning component 210 to proceed according to... Figure 3The cleaning component 210 rotates in the opposite direction of P2. During this rotation, the cleaning component 210 comes into contact with the scraper component, which lifts the bristles on the cleaning component 210, making the bristles on the surface of the cleaning component 210 fluffier. After the bristles on the surface of the cleaning component 210 become fluffier, the cleaning component 210 is switched to the first state. This ensures that when the cleaning component 210 is in the first state, its surface can fully contact the floor scraper 260, preventing gaps between the cleaning component 210 and the floor scraper 260 that would allow backflow of liquid. This effectively prevents liquid from flowing back onto the surface to be cleaned or the base 20. In addition, the fluffier bristles on the surface of the cleaning component 210 have better water absorption, which can fully absorb the backflowed liquid and prevent unabsorbed backflowed liquid from accumulating between the cleaning component 210 and the suction port 220. When the cleaning component 210 switches to the second state and separates from the floor scraper 260, the accumulated liquid will not flow back onto the surface to be cleaned or the base 20.

[0091] It is understandable that the aforementioned scraping component can be a dirt scraper 250, a water distribution scraper 240, or a liquid supply component 230; or, the scraping component can be the inner wall of the cavity 270 on the floor brush 200 that accommodates the cleaning component 210; or, when the cleaning component 210 is placed in the cleaning tank 201, the scraping component can be the tank wall of the cleaning tank 201.

[0092] Example 5:

[0093] Based on the above embodiments, this embodiment provides a control method for the surface cleaning device 1, such as... Figure 11 As shown, the method includes the following step S70. The working principle of the method will be explained in detail below:

[0094] Step S70: When the cleaning component 210 is in the first state, the cleaning component 210 is controlled to rotate at a first speed V1; when the cleaning component 210 is in the second state, the cleaning component 210 is controlled to rotate at a second speed V2; wherein, the first speed V1 is less than the second speed V2.

[0095] As can be seen from the above embodiments, when the cleaning machine 10 cleans the surface to be cleaned, the cleaning component 210 is mostly in the second state separated from the floor scraper 260. In this step, when the cleaning component 210 is in the second state, the cleaning component 210 is controlled to run at high speed, so that the cleaning component 210 can clean the surface to be cleaned with stronger cleaning force, thus ensuring the cleaning effect and cleaning efficiency of the surface to be cleaned.

[0096] As can be seen from the above embodiments, when absorbing the returned liquid, the cleaning component 210 is in the first state of contact with the floor scraper 260. If the cleaning component 210 does not rotate at this time, only a local area on the cleaning component 210 aligned with the suction port 220 can absorb the returned liquid. However, when there is a large amount of returned liquid, it will exceed the water absorption limit of the local area of ​​the cleaning component 210, causing some liquid to be unable to be absorbed by the cleaning component 210 and instead accumulate between the suction port 220 and the cleaning component 210. At this time, when the cleaning component 210 switches to the second state and separates from the floor scraper 260, the accumulated liquid will still flow back to the surface to be cleaned or the base 20. Therefore, in this step, when the cleaning component 210 is in the first state, the cleaning component 210 is rotated slowly to increase the water absorption area of ​​the cleaning component 210, ensuring that the returned liquid can be fully absorbed, effectively preventing the liquid from flowing back to the surface to be cleaned or the base 20 when the cleaning component 210 switches to the second state.

[0097] like Figure 3 As shown, when the cleaning component 210 is in the second state, it can switch from the second state to the first state by moving along the horizontal direction T1. In this switching mode, when the cleaning component 210 is in the second state, the interference fit between the cleaning component 210 and the scraper 250 is small. When the cleaning component 210 rotates rapidly, the operating load and operating current of the drive motor are within a reasonable range, and the drive motor does not overheat. However, when the cleaning component 210 is in the first state, the interference fit between the cleaning component 210 and the scraper 250 is large. When the cleaning component 210 rotates rapidly, it easily increases the operating load of the drive motor, causing a larger operating current and overheating. In this step, when the cleaning component 210 is in the first state, rotating it slowly keeps the operating load and operating current of the drive motor within a reasonable range, alleviating the overheating phenomenon and extending the service life of the drive motor.

[0098] It is understandable that when the cleaning component 210 is in the second state, it can also switch from the second state to the first state by moving downwards. For example, Figure 3 As shown, the cleaning component 210 can switch from the second state to the first state by moving in the vertically downward direction T2, or the cleaning component 210 can switch from the second state to the first state by moving in the inclined downward direction T3.

[0099] When the cleaning component 210 switches states by moving in the downward inclined direction T3, the displacement of the cleaning component 210 is smaller and the switching efficiency is higher.

[0100] It is understood that, in this application, switching the cleaning component 210 from a second state separated from the floor scraper 260 to a first state abutting against the floor scraper 260 by moving it may change the positional relationship between the squeegee 250 and the cleaning component 210. The interference fit between the cleaning component 210 and the squeegee 250 decreases, resulting in less pressure from the squeegee 250 on the bristles of the cleaning component 210; or, the interference fit between the cleaning component 210 and the squeegee 250 is released, and the squeegee 250 does not press against the bristles of the cleaning component 210 at all, resulting in higher fluffiness of the bristles on the surface of the cleaning component 210, ensuring sufficient contact between the cleaning component 210 and the floor scraper 260 in the first state, preventing gaps that allow backflow of liquid between the cleaning component 210 and the floor scraper 260, and effectively preventing liquid backflow onto the surface to be cleaned or the base 20; or the interference fit between the cleaning component 210 and the squeegee 250 increases. Optionally, the squeegee 250 includes a first squeegee 2501 and a second squeegee 2502 arranged longitudinally. When the cleaning component 210 and the floor squeegee 260 are in the first state, the interference between the first squeegee 2501 and the cleaning component 210 decreases, and the interference between the second squeegee 2502 and the cleaning component increases.

[0101] After the base 20 performs a self-cleaning operation on the cleaning machine 10, it performs a drying operation on the cleaning machine 10. During the drying operation, the cleaning component 210 can be controlled to switch between a first state and a second state. As described in the above embodiment, when the cleaning component 210 is in the second state, the drying assembly can simultaneously dry the cleaning component 210, the suction pipe, and the suction port 220. However, when the cleaning component 210 switches from the second state to the first state by moving along the horizontal direction T1, the cleaning component 210 is in interference fit with the scraper 250 and abuts against the floor scraper 260. At this time, the cold or hot airflow output from the air outlet 202 can only flow through the cleaning component 210 and cannot enter the suction port 220 and the suction pipe, thus failing to dry the suction port 220 and the suction pipe. In this embodiment, after the cleaning component 210 is switched from the second state to the first state by moving downward, the scraper 250 and the cleaning component 210 will be released from the interference fit. At this time, even if the cleaning component 210 is in the first state, the cold air or hot air output by the air outlet 202 can enter the suction port 220 and the suction pipe to dry the suction pipe and the suction port 220, resulting in high drying efficiency.

[0102] Of course, this is understandable. Figure 6 As shown, when the cleaning component 210 is in the second state, it abuts against the water distribution scraper 240, and the cold and hot airflows output from the air outlet 202 cannot flow across the entire upper surface of the cleaning component 210; as Figure 7As shown, when the cleaning component 210 is in the first state and separated from the water-distributing scraper 240, the cold and hot airflows output from the air outlet 202 can flow across the entire upper surface of the cleaning component 210. Therefore, it can be seen that in this application, by switching the cleaning component 210 between the first and second states, the ventilation area of ​​the upper surface of the cleaning component 210 during the drying process is increased, thereby improving the drying efficiency of the cleaning component 210.

[0103] Example 6:

[0104] Because the floor squeegee 260 is made of a flexible material such as soft rubber, in the above embodiment, when the cleaning machine 10 is placed on the surface to be cleaned, part of the floor squeegee 260 may be sandwiched between the floor brush 200 and the surface to be cleaned, forming a bend. When the floor squeegee 260 bends, even if the cleaning component 210 is in the first state, the cleaning component 210 will not come into contact with the floor squeegee 260, but will form a gap between the cleaning component 210 and the floor squeegee 260. At this time, the backflow liquid cannot be absorbed by the cleaning component 210 and will still flow back to the surface to be cleaned along the gap. Similarly, when the cleaning machine 10 is placed on the base 20, some of the floor squeegee 260 may be bent between the floor brush 200 and the base 20. When the floor squeegee 260 is bent, even if the cleaning component 210 is in the first state, the cleaning component 210 will not come into contact with the floor squeegee 260, but will form a gap between them. At this time, the backflow liquid cannot be absorbed by the cleaning component 210 and will still flow back to the base 20 along the gap. Therefore, in this embodiment, a detection module is provided on the surface cleaning device 1. When the detection module detects that the cleaning component 210 is in the first state, but the cleaning component 210 and the floor scraper 260 are not in contact, it indicates that the floor scraper 260 is bent. At this time, the control unit can control the cleaning component 210 to rotate according to the detection result of the detection module. Because a protrusion will appear when the floor scraper 260 is bent, the centrifugal force generated during the rotation of the cleaning component 210 can act on the protrusion, causing the floor scraper 260 to be released and return from the bent state to the normal state of contact with the cleaning component 210. This ensures that when the cleaning component 210 is in the first state, it is in contact with the floor scraper 260, which can effectively absorb the backflow liquid and prevent the liquid from flowing back to the surface to be cleaned or the base 20. In this embodiment, the control unit can control the cleaning component 210 to rotate according to the specified parameters. Figure 3 The P1 direction shown is rotated in the positive direction, or the control unit can control the cleaning component 210 to rotate in accordance with... Figure 3 The P2 direction described herein can be rotated in the opposite direction, or the control unit can alternately control the cleaning component 210 to rotate in the forward and reverse directions.

[0105] Example 7:

[0106] This embodiment proposes a connection method for the movable cleaning component 210 on the floor brush 200, based on the above embodiments.

[0107] like Figure 12 As shown, in this embodiment, the cleaning component 210 has a receiving cavity, and the drive motor 2103 is disposed in the receiving cavity; the cleaning component 210 has a first end face and a second end face disposed opposite to each other, a first connecting rod 2101 is provided on the first end face, and a second connecting rod 2102 is provided on the second end face.

[0108] like Figure 12 , Figure 13 as well as Figure 14 As shown, the floor brush 200 has a first base 280 and a first connector 290. The first base 280 has a first end 28011, and the first end 28011 is provided with an open first semi-circular groove 2801. The first connector 290 is provided with an open second semi-circular groove 2901. When the first connector 290 is connected to the first base 280, the first semi-circular groove 2801 and the second semi-circular groove 2901 are connected to form a first mounting groove 291. A first slider 2803 is provided in the first mounting groove 291, and the first slider 2803 is connected to the first connecting rod 2101. The first base 280 is provided with a first driving member 2805, a first worm gear 2804 and a first transmission rod 2802; the first worm gear 2804 has a first inner hole 28041, and the output end of the first driving member 2805 is disposed in the first inner hole 28041; the first transmission rod 2802 has a first output end 28022 and a first mating hole 28021, the first worm gear 2804 is disposed in the first mating hole 28021, and the first output end 28022 is connected to the first slider 2803.

[0109] Similarly, the floor brush 200 also has a second connector (not shown in the figure), and the first base 280 has a second end (not shown in the figure), which is opposite to the first end 28011; the second end has an open third semi-circular groove, and the second connector has an open fourth semi-circular groove. When the second connector is connected to the first base 280, the third semi-circular groove and the fourth semi-circular groove mate to form a second mounting groove; a second slider (not shown in the figure) is provided in the second mounting groove, and the second slider is connected to the second connecting rod 2102. The first base 280 has a second driving member, a second worm gear, and a second transmission rod; the second worm gear has a second inner hole, and the output end of the second driving member is located in the second inner hole; the second transmission rod has a second output end and a second mating hole, the second worm gear is located in the second mating hole, and the second output end is connected to the second slider.

[0110] The first driving component 2805 and the second driving component are connected to the control unit. When the cleaning component 210 switches from the first state to the second state, the control unit drives the output ends of the first driving component 2805 and the second driving component to run in the first rotation direction. After the first driving component 2805 runs, it drives the first worm gear 2804 and the first transmission rod 2802 to run. After the first transmission rod 2802 runs, it drives the first slider 2803 to move away from the floor scraper 260. After the second driving component runs, it drives the second worm gear and the second transmission rod to run. After the second transmission rod runs, it drives the second slider to move away from the floor scraper 260. When both the first slider 2803 and the second slider move away from the floor scraper 260, they drive the cleaning component 210 to move away from the floor scraper 260. When the cleaning component 210 moves a certain distance, it switches from the first state to the second state.

[0111] When the cleaning component 210 switches from the second state to the first state, the control unit drives the output ends of the first driving component 2805 and the second driving component to run in the second rotation direction. After the first driving component 2805 runs, it drives the first worm gear 2804 and the first transmission rod 2802 to run. After the first transmission rod 2802 runs, it drives the first slider 2803 to move closer to the floor scraper 260. After the second driving component runs, it drives the second worm gear and the second transmission rod to run. After the second transmission rod runs, it drives the second slider to move closer to the floor scraper 260. When both the first slider 2803 and the second slider move closer to the floor scraper 260, they drive the cleaning component 210 to move closer to the floor scraper 260. When the cleaning component 210 moves to abut against the floor scraper 260, the switch from the second state to the first state is achieved.

[0112] The apparatuses and methods disclosed in the several embodiments provided in this application can also be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatuses, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0113] In addition, the functional modules in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0114] If a function is implemented as a software module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

Claims

1. A control method for a surface cleaning device, the surface cleaning device comprising a cleaning machine, the cleaning machine comprising a pivotally connected body and a floor brush, the floor brush comprising a movable cleaning component, a suction port located behind the cleaning component, and a floor scraper strip disposed below the suction port, characterized in that, The control method for the surface cleaning device includes at least: The cleaning component is controlled to switch between a first state and a second state; wherein, in the first state, the cleaning component is in contact with the floor squeegee; and in the second state, the cleaning component is separated from the floor squeegee.

2. The control method of the surface cleaning device according to claim 1, characterized in that, The surface cleaning device further includes a scraper, which is controlled to rotate in the reverse direction before the cleaning component switches from the second state to the first state; wherein the cleaning component comes into contact with the scraper when it rotates in the reverse direction.

3. The control method of the surface cleaning device according to claim 1, characterized in that, The cleaning machine also includes a suction fan connected to the suction port, and when the cleaning component is in the first state, at least the suction fan is in operation.

4. The control method of the surface cleaning device according to claim 3, characterized in that, When the suction fan stops operating for a first preset time, the cleaning component is switched from the first state to the second state.

5. The control method of the surface cleaning device according to claim 1, characterized in that, When the cleaning component is in the first state, it is controlled to rotate at a first speed V1; when the cleaning component is in the second state, it is controlled to rotate at a second speed V2; wherein, the first speed V1 is less than the second speed V2.

6. The control method of the surface cleaning device according to claim 1, characterized in that, The surface cleaning device receives a first signal and controls the cleaning component to switch from the second state to the first state.

7. The control method of the surface cleaning device according to claim 6, characterized in that, The surface cleaning device receives a second signal and controls the cleaning component to switch from the first state to the second state.

8. The control method of the surface cleaning device according to claim 1, characterized in that, The cleaning component switches from the second state to the first state by moving horizontally, or the cleaning component switches from the second state to the first state by moving downward.

9. The control method of the surface cleaning device according to claim 2, characterized in that, The scraping component includes a water-distributing scraper located above the cleaning component. When the cleaning component is in the second state, it abuts against the water-distributing scraper, and when the cleaning component is in the first state, it separates from the water-distributing scraper.

10. The control method of the surface cleaning apparatus according to any one of claims 1-9, characterized in that, The surface cleaning device further includes a detection module, which detects that the cleaning component is in the first state, but the cleaning component and the floor squeegee are in a non-contact state, and controls the rotation of the cleaning component.

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