A self-cleaning method for a surface cleaning device

Abstract

The application provides a self-cleaning method of a surface cleaning device, comprising: a soaking stage S1: controlling a liquid supply assembly to supply liquid to a cleaning piece and / or a cleaning tank to perform soaking cleaning on the cleaning piece; a cleaning stage S2: the liquid supply assembly stops supplying liquid, the cleaning piece and / or a dirt suction fan are controlled to operate, the liquid supply assembly is controlled to supply liquid after a certain time length, the cleaning piece rotates, a scraping strip scrapes the cleaning piece, and dirt and / or dirty liquid generated after scraping is sucked into a dirt containing barrel through a dirt suction port and a dirt suction pipeline under the action of the dirt suction fan; a dirt suction stage S3: the cleaning piece and the dirt suction fan are controlled to operate, and liquid remaining in the cleaning piece and the cleaning tank is sucked into the dirt containing barrel through the dirt suction port; in S2 and / or S3, the dirt suction fan is first controlled to operate at a first power, and the operating power of the dirt suction fan is increased after a target time length. The application can reasonably utilize resources to clean the cleaning piece and / or the dirt suction pipeline, and can effectively prevent the dirt suction fan from being waterlogged during self-cleaning.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, and in particular to a self-cleaning method for surface cleaning equipment. Background Technology

[0002] Currently, surface cleaning equipment such as floor scrubbers are widely used. Surface cleaning equipment consists of a surface cleaning machine and a base. The surface cleaning machine is equipped with a floor brush, a liquid supply component, and a suction component. The floor brush has a cleaning component driven by a motor and scrapers that rub against the cleaning component. The suction component includes a sludge tank and a suction fan. The surface cleaning machine is used to clean surfaces awaiting cleaning. When the surface cleaning machine completes a cleaning operation on the surface, a significant amount of dirt accumulates on the cleaning component, requiring timely cleaning. In existing technology, when cleaning the cleaning component, the surface cleaning machine is placed on the base. After successful placement, the liquid supply component sprays cleaning liquid into the cleaning tank on the base and / or onto the cleaning component, continuously rinsing and cleaning the component during spraying. During cleaning, the cleaning component rotates, and the scrapers continuously scrape the component, removing dirt or liquid. Simultaneously, the suction fan is activated, drawing the liquid from the cleaning tank and the cleaning component into the sludge tank. However, when cleaning the cleaning components using the above methods, insufficient water spray can easily result in incomplete cleaning, especially when cleaning the suction pipe, where too little water makes it impossible to clean the pipe. Excessive water spray, while making the cleaning components easier to clean and effectively cleaning the suction pipe, produces more wastewater requiring higher power to quickly pump it into the collection tank. Furthermore, the suction fan is unstable at startup; if it starts at high power, it may draw wastewater into the collection tank, and some wastewater may also overflow into the suction fan, causing water ingress and damage. Additionally, prolonged high-power operation of the suction fan is not only a waste of resources, but also reduces its lifespan if overpowered for extended periods. Excessive water usage is also a waste of resources. Summary of the Invention

[0003] The purpose of this application is to provide a self-cleaning method for surface cleaning equipment. This method can not only make reasonable use of resources to clean the cleaning parts and / or suction pipes, but also effectively prevent water from entering the suction fan during self-cleaning.

[0004] This application provides a self-cleaning method for a surface cleaning device. The method is applied to the surface cleaning device, which includes a surface cleaning machine and a base. The base has a cleaning tank. The surface cleaning machine includes a floor brush with cleaning components mounted on it, a liquid supply assembly, and a suction system. The floor brush has a suction port and scrapers that contact the cleaning components. The suction system includes a sludge container, a suction fan that creates negative pressure inside the sludge container, and a suction pipe connecting the suction port and the sludge container. The self-cleaning method for the surface cleaning device includes:

[0005] Soaking stage S1: Control the liquid supply component to supply liquid to the cleaning parts and / or cleaning tank to soak and clean the cleaning parts;

[0006] Cleaning stage S2: The liquid supply component stops supplying liquid, controls the operation of the cleaning component and / or the suction fan, and after a certain period of time, controls the liquid supply component to supply liquid again. The cleaning component rotates, and the scraper scrapes and cleans the cleaning component. Under the action of the suction fan, the dirty liquid and / or dirt generated after scraping are sucked into the sludge bucket through the suction port and suction pipe.

[0007] S3: Control the operation of the cleaning components and the suction fan to draw the residual liquid in the cleaning components and the cleaning tank into the sludge collection bucket through the suction port;

[0008] In the cleaning stage S2 and / or the sludge extraction stage S3, the sludge extraction fan is first controlled to run at the first power, and then the operating power of the sludge extraction fan is increased after the target time.

[0009] In one embodiment, the self-cleaning method of the surface cleaning device further includes:

[0010] Before the sludge extraction stage S3, there is a pulse cleaning stage S4: controlling the liquid supply component to supply liquid to the cleaning parts and cleaning tank, and controlling the operation of the sludge suction fan to make the liquid move up and down in the sludge suction pipe to perform pulse cleaning on the sludge suction pipe.

[0011] In the pulse cleaning stage S4, the operating power of the suction fan is controlled to be less than the first power.

[0012] In one embodiment, the self-cleaning method of the surface cleaning device further includes:

[0013] Before the pulse cleaning stage S4, there is a deep soaking stage S5: the liquid supply component is controlled to supply liquid to the cleaning parts and the cleaning tank to soak and clean the cleaning parts again.

[0014] In one embodiment, during the pulse cleaning phase S4, the suction fan is controlled to operate at a second power; or, the suction fan is controlled to operate alternately at a third power and a fourth power; wherein the third power and the fourth power are not equal.

[0015] In one embodiment, the liquid supply flow rate of the liquid supply component in the deep immersion stage S5 is Q1, and the liquid supply flow rate of the liquid supply component in the pulse cleaning stage S4 is Q2; wherein, Q2 <Q1。

[0016] In one embodiment, during the cleaning stage S2, the operating power of the suction fan first increases and then decreases; or, the operating power of the suction fan gradually increases.

[0017] In one embodiment, during the sludge extraction stage S3, the operating power of the sludge extraction fan first increases and then decreases; or, the operating power of the sludge extraction fan gradually increases.

[0018] In one embodiment, the surface cleaning machine is further provided with a heating component; the self-cleaning method of the surface cleaning equipment further includes:

[0019] Turn on the heating element so that the liquid supply element discharges hot water into the cleaning tank and cleaning components.

[0020] In one embodiment, a fan and a heating device are also provided inside the base, and the self-cleaning method of the surface cleaning equipment further includes:

[0021] After the sludge extraction stage S3, there is a drying stage S6: controlling the heating device and fan to dry the cleaning components and sludge suction pipes; at the same time, controlling the operation of the cleaning components.

[0022] In one embodiment, the surface cleaning device is equipped with an electrolytic water component; during the soaking stage S1, the operation of the electrolytic water component is controlled.

[0023] Those skilled in the art will understand that the self-cleaning method of the surface cleaning device described above in this invention has at least the following beneficial effects:

[0024] The self-cleaning method of the surface cleaning equipment includes a soaking stage S1, in which the cleaning parts are soaked to make their surface more fluffy, allowing more water-soluble dirt to dissolve and reducing the adhesion of stubborn particulate dirt, making it easier to remove. Following the soaking stage S1 is a cleaning stage S2. In the cleaning stage S2, the liquid supply component stops supplying liquid, while the cleaning parts rotate and the suction fan operates to remove the soaking liquid and dirt. After a certain period, the liquid supply resumes, providing clean water for further automatic cleaning of the cleaning parts. This allows for cleaning with less water, achieving energy savings. The water used in the soaking stage thoroughly cleans the cleaning parts and absorbs the cleaned wastewater into the collection tank, not only saving water but also minimizing residual wastewater on the cleaning parts. This results in reduced energy consumption for the suction motor during the roller brush self-cleaning stage, saving resources while maintaining high suction efficiency. After the cleaning stage S2, the sludge extraction stage S3 is set up. In the sludge extraction stage S3, the water remaining on the cleaning parts and the cleaning tank is absorbed. Since the water supply is stopped at the beginning of the self-cleaning stage and then resumed after a certain period of time, the water content of the cleaning parts is low and there is less water left in the cleaning tank. This facilitates efficient sludge extraction in the sludge extraction stage. Not only is the cleaning efficiency of the cleaning parts ensured with less water, but the efficiency of the sludge extraction motor is also improved, making the self-cleaning process of the surface cleaning equipment more energy-efficient.

[0025] In both the cleaning stage (S2) and the sludge extraction stage (S3), the sludge suction fan typically operates simultaneously with the cleaning components, or starts operating after the cleaning components have begun. Once the cleaning components are running, the scraper blades scrape them, drawing the sludge and wastewater from the cleaning tank into the suction pipe. The sludge rises within the suction pipe, exiting at the pipe opening and falling naturally into the collection bucket under gravity. When the cleaning components and suction fan are running, the amount of sludge is relatively small, allowing for rapid absorption into the collection bucket. When the suction fan starts at high power, the lift of the sludge increases, and given the initial low volume of sludge, the sludge rises even higher. Therefore, upon exiting the suction pipe, it continues to rise before finally falling into the collection bucket under gravity. However, if the sewage continues to rise a certain height after exiting the suction pipe, the probability of sewage entering the suction fan increases, raising the risk of water ingress and damage to the suction fan. Therefore, in this application, during the cleaning phase S2 and the sewage extraction phase S3, the suction fan is started with a lower power. After running at this lower power for a target duration, the suction fan's operating power is gradually increased. After running for a certain target duration, the suction fan gradually stabilizes, and the amount of sewage gradually increases. The suction fan consumes more energy to pull more sewage into the collection tank, thus reducing the height the sewage rises and making it easier for it to pass over the suction pipe opening and fall into the collection tank. This method effectively avoids water ingress into the suction fan caused by starting at high power, protecting the suction fan and extending its service life. Furthermore, this automatic cleaning method not only cleans the components effectively but also saves water and energy. Attached Figure Description

[0026] 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.

[0027] Figure 1 This is a schematic diagram of the structure of a surface cleaning device provided in an embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the structure of a surface cleaning machine provided in one embodiment of this application;

[0029] Figure 3 This is a schematic diagram of the connection of a control component provided in an embodiment of this application;

[0030] Figure 4 This is a schematic flowchart of the self-cleaning method of the surface cleaning equipment provided in the first embodiment of this application.

[0031] Figure label:

[0032] 1-Surface cleaning equipment; 2-Floor brush; 3-Soil collection tank; 5-Soil suction fan; 6-Power source system; 8-Display screen; 11-Main body; 13-Air inlet channel; 15-Positioning part; 21-Cleaning component; 22-Roller; 23-Water spray nozzle; 24-Soil suction port; 25-Roller brush chamber; 26-Drive motor; 31-Soil collection chamber; 32-Cover; 33-Soil suction pipe; 34-Ventilation port; 41-Clean water tank; 42-Water pump; 61-Housing shell; 62-Battery pack; 100-Surface cleaning machine; 200-Base; 210-Cleaning tank; 300-Control components; 331-Pipe port. Detailed Implementation

[0033] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0034] Example 1:

[0035] Please refer to Figure 1 This is a schematic diagram of the surface cleaning device provided in an embodiment of this application. Please refer to... Figure 2 This is a schematic diagram of the structure of a surface cleaning machine 100 provided in an embodiment of this application. Figure 1 As shown, the surface cleaning device in this embodiment includes a surface cleaning machine 100 and a base 200. The surface cleaning machine 100 is used to clean the ground surface awaiting cleaning, and the base 200 is used for maintenance operations such as charging, cleaning, and drying of the surface cleaning machine 100. Figure 1 As shown, a cleaning tank 210 is provided on the base 200.

[0036] like Figure 2As shown, the surface cleaning machine 100 includes a body 11 and a floor brush 2 rotatably connected to the body 11; the surface cleaning machine 100 also includes a cleaning assembly, a liquid supply assembly, and a suction assembly. The cleaning assembly includes a cleaning element 21 disposed on the floor brush 2 for cleaning the surface to be cleaned, a drive motor 26 (not shown in the figure) disposed on the floor brush 2 and connected to the cleaning element 21 for driving the cleaning element 21 to rotate, a roller 22 disposed on the floor brush 2 for assisting the movement of the surface cleaning machine 100, and a scraper (not shown in the figure) disposed on the floor brush 2 and abutting against the cleaning element 21 for scraping the cleaning element 21; the floor brush 2 has a roller brush cavity 25, and the cleaning element 21 and the scraper are disposed in the roller brush cavity 25. For example, the cleaning element 21 can be a single roller, a double roller, or a tracked cleaning cloth, or a combination thereof. The liquid supply assembly includes a water spray nozzle 23 disposed on the roller brush chamber 25 and facing the cleaning component 21, a clean water tank 41 disposed on the rear side of the machine body 11, a water pump 42, and a liquid supply pipeline disposed within the machine body 11 for connecting the water spray nozzle 23 and the clean water tank 41. The sludge suction assembly includes a sludge suction port 24 disposed on the roller brush chamber 25 and facing the cleaning component 21, a sludge collection tank 3 detachably disposed on the machine body 11, a sludge suction fan 5 disposed on the machine body 11 to suck sludge or dirt into the sludge collection tank 3, and a sludge suction pipe 33 connecting the sludge collection tank 3 and the sludge suction port 24, with the pipe opening 331 of the sludge suction pipe 33 extending into the sludge collection tank 3. For example, the sludge suction fan 5 can be a vacuum motor.

[0037] The main body 11 is equipped with an independent and detachable power source system 6. The suction fan 5 is located inside the power source system 6. The power source system 6 also contains a control component 300 and a battery pack 62 for power supply. The housing 61 of the power source system 6 is also equipped with a display screen 8. The upper end of the main body 11 has a forward-protruding positioning part 15, which contains a positioning cavity. The power source system 6 is installed in the positioning cavity.

[0038] The waste container 3 is positioned below the positioning part 15. The waste container 3 includes a waste container cavity 31 and a cover 32 that seals and covers the waste container cavity 31. The port 331 of the suction pipe 33 extends into the waste container cavity 31. The positioning part 15 is provided with an air inlet channel 13 that communicates with the suction fan 5. The cover 32 is provided with a vent 34 that communicates with the air inlet channel 13. The cover 32 is also provided with a receiving cavity for placing a gas-liquid separation structure, such as a HEPA filter.

[0039] Please refer to Figure 3 This is a connection diagram of the control component 300 provided in one embodiment of this application. Figure 3As shown, the control component 300 is connected to the drive motor 26, the water pump 42, and the suction fan 5. The control component 300 can control whether the cleaning component 21 operates by controlling the working state of the drive motor 26; the control component 300 can control whether the liquid supply component supplies liquid by controlling the working state of the water pump 42; in addition, the control component 300 can also control whether the suction fan 5 operates.

[0040] The surface cleaning machine 100 cleans the surface to be cleaned on the following principle:

[0041] The control component 300 controls the operation of the drive motor 26, the liquid supply component, and the suction fan 5. After the drive motor 26 starts running, it drives the cleaning component 21 to rotate. The liquid supply component supplies liquid to the surface to be cleaned and to the cleaning component 21, keeping the cleaning component 21 moist. Then, the moistened cleaning component 21 rotates and rubs against the surface to be cleaned, cleaning it. While cleaning the surface, dirt adheres to the cleaning component 21. To ensure cleaning effectiveness, the scraper on the floor brush 2 scrapes the cleaning component 21 as it rotates, removing some of the adhered dirt. The scraped dirt and the dirt formed on the surface after cleaning are sucked into the waste collection tank 3 by the suction fan 5. This process is repeated until the surface to be cleaned is finished.

[0042] After the surface cleaning machine 100 performs a cleaning operation on the surface to be cleaned, a lot of dirt will adhere to the cleaning part 21, which needs to be cleaned in time. At this time, the cleaning part 21 can be placed in the cleaning tank 210. After placement, the self-cleaning method of the surface cleaning equipment 1 provided in the following embodiments of this application is used to clean the cleaning part 21. The specific principle is explained in detail below.

[0043] Please refer to Figure 4 This is a schematic flowchart illustrating the self-cleaning method of the surface cleaning device 1 provided in the first embodiment of this application. The self-cleaning method of the surface cleaning device 1 is executed by the aforementioned control component 300, as shown below. Figure 4 As shown, the self-cleaning method of the surface cleaning device 1 includes a soaking stage S1, a cleaning stage S2, and a dirt extraction stage S3 executed sequentially. The working principle of each stage will be explained below.

[0044] Soaking stage S1: Control the liquid supply component to supply liquid to the cleaning part 21 and / or the cleaning tank 210 to soak and clean the cleaning part 21.

[0045] When cleaning the cleaning component 21, the control component 300 can first execute the soaking stage S1 to soak the cleaning component 21. In the soaking stage S1, the control component 300 controls the operation of the liquid supply component. After the liquid supply component is running, the cleaning liquid in the clean water tank 41 flows into the liquid supply pipeline according to the preset flow rate and flow speed, and flows to the cleaning component 21 and / or the cleaning tank 210 through the liquid supply pipeline and the spray nozzle 23.

[0046] The cleaning solution flowing onto the cleaning component 21 soaks and rinses its upper surface. During this process, the bristles on the upper surface of the cleaning component 21 are softened, and some or all of the water-soluble dirt on the upper surface of the cleaning component 21 dissolves. Weaker-adhesive dirt on the upper surface of the cleaning component 21 is washed into the cleaning tank 210, while stubborn dirt on the upper surface of the cleaning component 21 is soaked. After the cleaning solution flows into the cleaning tank 210, it continuously accumulates, soaking the lower surface of the cleaning component 21. During this soaking process, the bristles on the lower surface of the cleaning component 21 are softened, and some or all of the water-soluble dirt dissolves. Weaker-adhesive dirt on the lower surface of the cleaning component 21 falls off and enters the cleaning solution in the cleaning tank 210, allowing stubborn dirt on the lower surface of the cleaning component 21 to be continuously soaked.

[0047] After the soaking stage S1 has been performed for the preset duration, the control component 300 can stop the soaking stage S1. After the soaking stage S1 is stopped, the bristles of the cleaning component 21 are wetted and the dirt on the cleaning component 21 is softened. At this time, the control component 300 can continue to perform the cleaning stage S2 to clean the cleaning component 21.

[0048] Cleaning stage S2: The liquid supply component stops supplying liquid, and the cleaning component 21 and / or the suction fan 5 are controlled to run. After a certain period of time, the liquid supply component is controlled to supply liquid again. The cleaning component 21 rotates, and the scraper scrapes and cleans the cleaning component 21. Under the action of the suction fan 5, the dirty liquid and / or dirt generated after scraping are sucked into the sludge tank 3 through the suction port 24 and the suction pipe 33.

[0049] In the cleaning phase S2, the control component 300 can first control the liquid supply component to stop operating. Simultaneously, the control component 300 can control the suction fan 5 and / or the cleaning component 21 to operate. After the cleaning component 21 operates, the scraper on the floor brush 2 scrapes the cleaning component 21, removing dirt and / or debris. The dirt and / or liquid, after being scraped off, are sucked by the suction fan 5 through the suction port 24 into the suction pipe 33. Once inside the suction pipe 33, the dirt and / or debris rises along the inner wall of the suction pipe 33 under the suction force of the suction fan 5. When the dirt reaches the pipe opening 331 of the suction pipe 33, it will exit from the pipe opening 331 and fall naturally into the waste collection tank 3 under gravity. At the same time, the suction fan 5 also sucks the cleaning liquid in the cleaning tank 210 into the waste collection tank 3.

[0050] Cleaning component 21 is performed according to the above procedure. After the cleaning time has elapsed and cleaning component 21 and / or suction fan 5 have been running for a certain period of time, the liquid supply component is controlled to supply liquid again. After the liquid supply component supplies liquid, cleaning component 21 is cleaned again according to the above procedure.

[0051] In the cleaning phase S2, when the control component 300 controls the cleaning component 21 to run, it can first control the drive motor 26 to run, so that the drive motor 26 drives the cleaning component 21 to run. When the control component 300 controls the suction fan 5 to run, it can first control the suction fan 5 to run at a first power, and after the suction fan 5 runs at the first power for a target time, it can increase the operating power of the suction fan 5. For example, the first power can be 90-110W.

[0052] After the cleaning phase S2 has been executed for the preset duration, the control component 300 can stop the cleaning phase S2. However, after the cleaning phase S2 is completed, water will remain on the cleaning component 21 and the cleaning tank 210. Therefore, the control component 300 can continue to execute the sludge extraction phase S3 after the cleaning phase S2. By executing the sludge extraction phase S3, the water on the cleaning component 21 and the cleaning tank 210 is absorbed, thereby reducing the water content of the cleaning component 21 and the cleaning tank 210.

[0053] S3: Control the operation of cleaning component 21 and suction fan 5 to suck the residual liquid in cleaning component 21 and cleaning tank 210 into the sludge collection tank 3 through suction port 24.

[0054] During the sludge extraction stage S3, the control component 300 controls the operation of the cleaning component 21 and the suction fan 5, while simultaneously shutting down the liquid supply component. After the suction fan 5 and the cleaning component 21 are running, the remaining water on the cleaning component 21 and the washing tank 210 is drawn into the suction pipe 33 through the wastewater outlet. Then, under the suction force of the suction fan 5, the water rises along the suction pipe 33. When it reaches the pipe opening 331 of the suction pipe 33, it exits from the pipe opening 331 and falls naturally into the sludge collection tank 3 under gravity. The above process is continuously executed during the sludge extraction stage S3, continuously absorbing the remaining water on the cleaning component 21 and the washing tank 210 into the sludge collection tank 3.

[0055] In the sludge extraction stage S3, when the control component 300 controls the cleaning component 21 to run, it can first control the drive motor 26 to run, so that the drive motor 26 drives the cleaning component 21 to run. When the control component 300 controls the suction fan 5 to run, it can first control the suction fan 5 to run at a first power, and after the suction fan 5 runs at the first power for a target duration, it can increase the operating power of the suction fan 5. For example, the first power can be 90-110W.

[0056] After the execution time of the sludge extraction stage S3 reaches the preset time, the control component 300 can stop the execution of the sludge extraction stage S3 and end the self-cleaning process.

[0057] As can be seen from the above, in this application, the self-cleaning method of the surface cleaning device 1 includes an immersion stage S1, in which the cleaning part 21 is immersed to make the surface of the cleaning part 21 more fluffy, so that more water-soluble dirt on the cleaning part 21 can be dissolved, while reducing the adsorption force of particulate and other stubborn dirt on the cleaning part 21, making it easier to clean the stubborn dirt on the cleaning part 21. After the soaking stage S1, a cleaning stage S2 is set. During the cleaning stage S2, the liquid supply component stops supplying liquid, while the cleaning component 21 rotates and the suction fan 5 works to remove the sludge and dirt generated during soaking. After a certain period of time, the liquid supply resumes, providing clean water for the further automatic cleaning of the cleaning component 21. This allows the cleaning component 21 to be cleaned with less water, achieving energy saving. The water used in the soaking stage is used to thoroughly clean the cleaning component 21 and absorb the sludge into the sludge collection tank 3. This not only saves water but also leaves less residual sewage on the cleaning component 21. This results in less energy consumption for the suction motor during the self-cleaning stage of the roller brush, saving resources while maintaining high suction efficiency. After the cleaning stage S2, the sludge extraction stage S3 is set up. In the sludge extraction stage S3, the water remaining on the cleaning component 21 and the cleaning tank 210 is absorbed. Since the water supply is stopped at the beginning of the self-cleaning stage and then resumed after a certain period of time, the water content of the cleaning component 21 is low and the water remaining in the cleaning tank 210 is also less. This facilitates efficient sludge extraction in the sludge extraction stage. Not only is the cleaning efficiency of the cleaning component 21 ensured with less water, but the efficiency of the sludge extraction motor is also improved, making the self-cleaning process of the surface cleaning equipment 1 more energy-efficient.

[0058] Whether in the cleaning stage S2 or the sludge extraction stage S3, the sludge extraction fan 5 generally operates simultaneously with the cleaning component 21, or the sludge extraction fan 5 starts operating after the cleaning component 21 starts operating. After the cleaning component 21 starts operating, the scraper scrapes the cleaning component 21, and the scraped sludge and the sludge in the cleaning tank 210 are sucked into the sludge extraction pipe 33 and rise in the sludge extraction pipe 33. When the sludge rises to the pipe opening 331 of the sludge extraction pipe 33, it will come out from the pipe opening 331 and fall naturally into the sludge collection tank 3 under the action of gravity. When the cleaning component 21 and the sludge extraction fan 5 are started, there is less sludge, so the sludge can be quickly sucked into the sludge collection tank 3. When the suction fan 5 starts at high power, the lift of the sewage increases. If the amount of sewage is relatively small at startup, the sewage will rise even higher. Therefore, when it exits the suction pipe 331, it will continue to rise a certain height before finally falling into the sewage container 3 under gravity. However, if the sewage continues to rise a certain height when exiting the suction pipe 331, the probability of sewage entering the suction fan 5 increases, thus increasing the risk of water ingress and damage to the suction fan 5. Therefore, in this application, during the cleaning stage S2 and the sludge extraction stage S3, the sludge suction fan 5 is started with a lower power. After the sludge suction fan 5 runs at the aforementioned lower power for a target duration, its operating power is gradually increased. After the sludge suction fan 5 runs for a certain target duration, it gradually stabilizes, and the amount of sludge gradually increases. As the sludge suction fan 5 pulls more sludge into the sludge collection tank 3, the energy consumption also increases, thus reducing the height of the sludge rise and making it easier to pass over the pipe opening 331 of the sludge suction pipe 33 before falling into the sludge collection tank 3. This method effectively avoids water ingress into the sludge suction fan 5 when it is started at high power, protecting the sludge suction fan 5 and extending its service life. At the same time, using this automatic cleaning method not only cleans the cleaning component 21 thoroughly but also saves water and energy.

[0059] It is understandable that we can also equip the surface cleaning device 1 with an electrolytic water assembly, which is connected to the control assembly 300. The control assembly 300 can control the working state of the electrolytic water assembly. During the soaking stage S1, the control assembly 300 can control the operation of the electrolytic water assembly. After the electrolytic water assembly is running, it electrolyzes the water in the clean water tank 41 into an acidic solution that can be used for disinfection. Then, after the liquid supply assembly is running, it discharges the acidic solution onto the cleaning component 21 and the cleaning tank 210. The cleaning component 21 is disinfected by discharging the acidic solution.

[0060] It is worth noting that during the soaking stage S1, the water electrolysis unit can be turned on at any time, and the running time of the water electrolysis unit is less than or equal to the running time of the soaking stage S1.

[0061] As can be seen, in this embodiment, by discharging an acidic solution into the cleaning component 21 during the soaking stage S1, the cleaning component 21 is disinfected while being soaked, thus fully ensuring the cleaning effect of the cleaning component 21.

[0062] It is understandable that we can also control the operation of the cleaning component 21 during the soaking stage S1. Specifically, during the soaking stage S1, the control component 300 can control the liquid supply component and the cleaning component 21 to operate simultaneously; or, during the soaking stage S1, the control component 300 can first control the operation of the liquid supply component, and then control the operation of the cleaning component 21 after the liquid supply component has been running for a period of time.

[0063] In this embodiment, during the soaking stage S1, the operation of the cleaning component 21 is controlled to ensure that the entire outer surface of the cleaning component 21 can be evenly soaked, avoiding the occurrence of soaking dead corners.

[0064] It is understandable that we can also start the cleaning component 21 and the suction fan 5 simultaneously during the cleaning stage S2. When the cleaning component 21 and the suction fan 5 are started at the same time, the suction fan 5 has a longer suction time, which ensures the absorption effect of the sewage.

[0065] Of course, it is understandable. We can also start the cleaning component 21 first during the cleaning stage S2, and then start the suction fan 5 after the cleaning component 21 has been running for a period of time.

[0066] In this embodiment, when the cleaning component 21 operates alone, the scraper continuously scrapes off the dirt on the cleaning component 21; after the suction fan 5 starts running, it centrally sucks the scraped dirt into the collection tank 3. Subsequently, when the cleaning component 21 and the suction fan 5 operate simultaneously, the scraper continues to scrape off the dirt on the cleaning component 21, while the suction fan 5 simultaneously sucks off the scraped dirt into the collection tank 3. Compared to the above embodiment, this embodiment reduces the operating time of the suction fan 5, thus saving energy.

[0067] Of course, that's understandable. We can also control the liquid supply component to shut down during the cleaning phase S2.

[0068] It is understandable that we can also control the operation of the liquid supply component during the cleaning phase S2. Specifically, the control component 300 can activate the liquid supply component at any time. For example, the control component 300 can activate the liquid supply component when the suction fan 5 is running; the control component 300 can activate the liquid supply component throughout the entire cleaning phase S2; the control component 300 can activate the liquid supply component when entering the cleaning phase S2 and then deactivate it after running for a period of time; or the control component 300 can activate the liquid supply component again after a certain period of time in the cleaning phase S2.

[0069] After the soaking stage, the base of the bristles on the cleaning component 21 may not be fully soaked, which can affect the cleaning effect. In this embodiment, the liquid supply component is activated in the cleaning stage S2 to supply liquid to the cleaning component 21, further soaking it and softening the base of the bristles. This allows the scraper to remove dirt from the base of the bristles, ensuring a thorough cleaning effect. Additionally, during the soaking stage S1, dirt on the cleaning component 21 may fall into the cleaning liquid in the cleaning tank 210. During the cleaning stage S2, after the suction fan 5 is activated, the cleaning liquid in the cleaning tank 210 surges, causing dirt in the cleaning liquid to adhere to the surface of the cleaning component 21. In this embodiment, during the cleaning stage S2, the liquid supply component is turned on so that the liquid supply component can discharge cleaning liquid onto the cleaning component 21. The discharge of cleaning liquid removes dirt adhering to the surface of the cleaning component 21, ensuring the cleaning effect on the cleaning component 21.

[0070] Example 2:

[0071] and Figure 4 Compared to the illustrated embodiment, the self-cleaning method of the surface cleaning device 1 in this embodiment further includes a pulse cleaning stage S4 located between the cleaning stage S2 and the decontamination extraction stage S3. The working principle of the self-cleaning method of the surface cleaning device 1 in this embodiment is explained in detail below:

[0072] Soaking stage S1: Control the liquid supply component to supply liquid to the cleaning part 21 and / or the cleaning tank 210 to soak and clean the cleaning part 21.

[0073] Cleaning stage S2: The liquid supply component stops supplying liquid, and the cleaning component 21 and / or the suction fan 5 are controlled to run. After a certain period of time, the liquid supply component is controlled to supply liquid again. The cleaning component 21 rotates, and the scraper scrapes and cleans the cleaning component 21. Under the action of the suction fan 5, the dirty liquid and / or dirt generated after scraping is sucked into the sludge tank 3 through the suction port 24 and the suction pipe 33.

[0074] Pulse cleaning stage S4: Control the liquid supply component to supply liquid to the cleaning component 21 and the cleaning tank 210, and at the same time control the operation of the suction fan 5 so that the liquid moves up and down in the suction pipe 33 to perform pulse cleaning on the suction pipe 33.

[0075] In this stage, the suction pipe 33 is cleaned by executing the pulse cleaning stage S4. Specifically, during the pulse cleaning stage S4, the control component 300 can activate the liquid supply component to supply water to the cleaning component 21 and the cleaning tank 210; the control component 300 can also activate the suction fan 5. After the suction fan 5 starts, it draws the cleaning liquid on the cleaning tank 210 into the suction pipe 33. After successful suction, the cleaning liquid moves up and down inside the suction pipe 33 under the suction force of the suction fan 5, continuously flushing the inner wall of the suction pipe 33. The pulse cleaning stage S4 continuously executes the above process to thoroughly clean the suction pipe 33.

[0076] It is worth noting that (1) in the pulse cleaning stage S4, the cleaning fluid continuously moves up and down in the suction pipe 33; when the cleaning fluid moves upward, it cleans the suction pipe 33; when the cleaning fluid falls downward and falls back onto the cleaning component 21, it cleans the cleaning component 21. It can be seen that the pulse cleaning stage S4 can clean the suction pipe 33 and the cleaning component 21 at the same time, and the cleaning efficiency is high.

[0077] (2) In the pulse cleaning stage S4, the operating power of the suction fan 5 needs to be controlled to be less than the first power mentioned above. The first power is the minimum operating power of the suction fan 5 in both the cleaning stage S2 and the suction stage S3. By setting the operating power of the suction fan 5 in the pulse cleaning stage, the waste liquid in the cleaning tank 210, after being sucked into the suction pipe 33, will not exit from the pipe opening 331, but will continuously move up and down within the suction pipe 33 to flush the inner wall of the suction pipe 33, ensuring a cleaning effect on the inner wall of the suction pipe 33. Simultaneously, setting the operating power of the suction fan 5 in the pulse cleaning stage also ensures that the cleaning liquid only flows within the suction pipe 33 and does not enter the waste collection tank 3; or, only a small amount of cleaning liquid enters the waste collection tank 3, achieving water-saving cleaning of the suction pipe 33 with less water.

[0078] It is understandable that the suction pipe 33, the suction pipe 33, the sludge container 3, the suction pipe 33, the suction pipe 33, and the suction pipe 33 can also be used. In the pulse cleaning stage S4, the suction fan 5 can also be continuously operated at the second power. The second power is less than the minimum operating power of the suction fan 5 in the cleaning stage S2 and the sludge extraction stage S3.

[0079] It is understandable that we can also control the suction fan 5 to operate alternately at a third power and a fourth power during the pulse cleaning stage S4. The third and fourth powers are not equal, and both are less than the minimum operating power of the suction fan 5 during the cleaning stage S2 and the suction stage S3. In this embodiment, during the pulse cleaning stage S4, the suction fan 5 is controlled to operate alternately at high and low power. When the suction fan 5 operates at high power, the cleaning liquid is drawn into the suction pipe 33 by the suction action of the suction fan 5, and rises to a first height along the inner wall of the suction pipe 33 before naturally falling. When the suction fan 5 operates at low power, the cleaning liquid is drawn into the suction pipe 33 by the suction action of the suction fan 5, and rises to a second height along the inner wall of the suction pipe 33 before naturally falling. The first and second heights are not equal. As can be seen, in this embodiment, by controlling the suction fan 5 to operate at high and low power, different pipe areas on the inner wall of the suction pipe 33 are cleaned, ensuring the cleaning effect of the suction pipe 33. At the same time, by controlling the suction fan 5 to operate at high and low power, the user can more easily perceive the execution progress of the pulse cleaning stage S4, improving the user experience.

[0080] After the pulse cleaning phase S4 has been performed for the preset duration, the control component 300 can continue to perform the sludge extraction phase S3.

[0081] S3: Control the operation of cleaning component 21 and suction fan 5 to suck the residual liquid in cleaning component 21 and cleaning tank 210 into the sludge collection tank 3 through suction port 24.

[0082] As can be seen from the above, compared to Figure 4 The embodiment shown in this embodiment can clean both the cleaning component 21 and the suction pipe 33 at the same time, thereby improving the cleaning effect of the surface cleaning equipment 1.

[0083] Example 3:

[0084] In one embodiment, the surface cleaning machine 100 is equipped with a heating component, which is connected to a control component 300. The control component 300 can control the operating state of the heating component. When the liquid supply component supplies liquid to the cleaning component 21 and the cleaning tank 210, the control component 300 can control the operation of the heating component, causing it to heat the water discharged from the liquid supply component, ultimately discharging hot water onto the cleaning component 21 and the cleaning tank 210. By discharging hot water, the bristles and dirt on the cleaning component 21 are quickly softened. Simultaneously, discharging hot water enhances the soaking effect on the dirt adhering to the cleaning component 21, rapidly weakening the adhesion strength of the dirt and making it easier to remove. Furthermore, when discharging hot water, the cleaning component 21 and the suction pipe 33 can be cleaned, ensuring a thorough cleaning effect. Finally, rinsing the suction pipe 33 with hot water effectively prevents it from developing an odor, improving the user experience.

[0085] The heating element can be located in the clean water tank 41, in the liquid supply pipeline, or on the floor brush 2. When the control component 300 controls the operation of the heating element, it can initially control the heating element to operate at maximum power to heat the cleaning fluid. When the cleaning fluid temperature reaches a first preset temperature, the heating power of the heating element is reduced to a preset power, allowing the heating element to operate at the preset power. When the cleaning fluid temperature drops to a second preset temperature, the heating power of the heating element is increased to maximum power. When the cleaning fluid temperature reaches the first preset temperature, the heating power of the heating element is reduced to a preset power. This process is repeated continuously to control the operating state of the heating element. For example, the first preset temperature can be 90–100°C, the second preset temperature can be 80–90°C, the maximum heating power of the heating element can be 300–400W, and the aforementioned preset power can be 200–300W.

[0086] Example 4:

[0087] After completing the sludge extraction stage S3, the control component 300 can continue to execute the drying stage S6. The drying stage S6 dries the cleaning component 21 and / or the sludge extraction pipe 33. The specific principle of the drying stage S6 is explained in detail below:

[0088] Drying stage S6: Control the heating device and fan to dry the cleaning component 21 and the suction pipe 33; at the same time control the operation of the cleaning component 21.

[0089] A heating device and a fan are provided on the base 200; the base 200 has an air duct communicating with the fan, and the heating device is located within the air duct. During the drying stage S6, the control component 300 can control the operation of the heating component and the fan; after the heating component and the fan operate, hot air is generated and blown towards the cleaning component 21 and / or the suction pipe 33. Under the action of the hot air, the cleaning component 21 and / or the suction pipe 33 are gradually dried, gradually changing from a damp state to a dry state. During drying, the cleaning component 21 can be rotated to ensure that the entire cleaning component 21 is dried, avoiding any drying dead zones.

[0090] It is understandable that we can also control the cleaning component 21 to rotate intermittently during the drying stage S6. By making the cleaning component 21 rotate intermittently, we can save energy while ensuring the drying effect. In addition, controlling the rotation of the cleaning component 21 intermittently can also reduce noise. Specifically, the rotation of the cleaning component 21 can be controlled by Bms every Amin; for example, A can be 2 to 3min, and B can be 200 to 300ms.

[0091] In one embodiment, during the cleaning phase S2, the operating power of the suction fan 5 exhibits a trend of first increasing and then decreasing. In this embodiment, the control component 300 first controls the suction fan 5 to operate at a first power. When the duration of operation at the first power reaches a first target duration, the control component 300 increases the operating power of the suction fan 5 to the first target power. When the duration of operation at the first target power reaches a second target duration, the control component 300 decreases the operating power of the suction fan 5 to the second target power. Afterward, the control component 300 controls the suction fan 5 to continue operating at the second target power until the cleaning phase S2 ends. For example, the first target power can be 240–260 W, and the second target power can be 110–130 W.

[0092] During the cleaning phase S2, the cleaning component 21 rotates, and the scraper continuously scrapes off dirt and / or liquid from the cleaning component 21. The suction fan 5 absorbs the dirt scraped off by the scraper into the collection tank 3. In this embodiment, the suction fan 5 is initially started at low power to achieve dirt suction while preventing dirt from entering the suction fan 5, thus protecting the suction fan 5 from water ingress. As the cleaning phase S2 is executed, the scraper continuously scrapes off dirt, and some of the scraped dirt enters the cleaning tank 210. Therefore, in this embodiment, after the suction fan 5 runs at low power for a period of time, the power of the suction fan 5 is increased to the first target power, so that the suction fan 5 can suck the cleaning tank 210 and the dirt scraped off by the scraper into the collection tank 3, preventing the dirt in the cleaning tank 210 from affecting the cleaning of the cleaning component 21. After the suction fan 5 has been running at the first target power for a period of time, there is only a small amount of dirt on the cleaning part 21. At this time, the operating power of the suction fan 5 can be reduced to the second target power. By reducing the operating power of the suction fan 5, energy consumption can be saved while ensuring the suction effect.

[0093] In another embodiment, during the cleaning stage S2, the operating power of the suction fan 5 gradually increases.

[0094] In one embodiment, during the sludge extraction stage S3, the operating power of the suction fan 5 gradually increases. In this embodiment, the control component 300 first controls the suction fan 5 to operate at a first power. When the duration of operation at the first power reaches a third target duration, the control component 300 increases the operating power of the suction fan 5 to the third target power. Then, the control component 300 controls the suction fan 5 to continue operating at the third target power until the sludge extraction stage S3 ends. For example, the third target power can be 110-130W.

[0095] In this embodiment, during the sludge extraction stage S3, the sludge suction fan 5 is first started at low power to achieve water extraction while preventing water from entering the sludge suction fan 5, thus protecting the sludge suction fan 5. After the sludge suction fan 5 runs at low power for a period of time, the power of the sludge suction fan 5 is increased to the third target power. By increasing the operating power, the water extraction effect of the sludge suction fan 5 on the cleaning component 21 and the washing tank 210 is ensured.

[0096] In another embodiment, during the sludge extraction stage S3, when the sludge suction fan 5 operates at the third target power for a duration reaching the fourth target duration, the control component 300 can further increase the operating power of the sludge suction fan 5 to the fourth target power. Afterward, the control component 300 controls the sludge suction fan 5 to continue operating at the fourth target power until the sludge extraction stage S3 ends. For example, the third target power can be 110–130 W, and the fourth target power can be 240–260 W.

[0097] The cleaning tank 210 may contain relatively heavy sediment. Therefore, in this embodiment, after the suction fan 5 operates at the third target power for a period of time, its operating power is increased to the fourth target power. By increasing the operating power of the suction fan 5, it can absorb the sediment in the cleaning tank 210 into the waste collection tank 3, preventing sediment residue in the cleaning tank 210 and improving its cleanliness. Furthermore, increasing the operating power of the suction fan 5 to the fourth target power also improves the water absorption effect on the cleaning tank 210 and the cleaning components 21, allowing the water on the cleaning tank 210 and the cleaning components 21 to be quickly absorbed into the waste collection tank 3.

[0098] It is worth noting that during the cleaning stage S2, the operating power of the suction fan 5 can also show a trend of first increasing and then decreasing.

[0099] Example 5:

[0100] Compared with Embodiment 2, the self-cleaning method of the surface cleaning device 1 in this embodiment further includes a deep immersion stage S5 located between the cleaning stage S2 and the pulse cleaning stage S4. The working principle of the self-cleaning method of the surface cleaning device 1 in this embodiment is explained in detail below:

[0101] Soaking stage S1: Control the liquid supply component to supply liquid to the cleaning part 21 and / or the cleaning tank 210 to soak and clean the cleaning part 21.

[0102] Cleaning stage S2: The liquid supply component stops supplying liquid, and the cleaning component 21 and / or the suction fan 5 are controlled to run. After a certain period of time, the liquid supply component is controlled to supply liquid again. The cleaning component 21 rotates, and the scraper scrapes and cleans the cleaning component 21. Under the action of the suction fan 5, the dirty liquid and / or dirt generated after scraping is sucked into the sludge tank 3 through the suction port 24 and the suction pipe 33.

[0103] Deep immersion stage S5: Control the liquid supply component to supply liquid to the cleaning component 21 and the cleaning tank 210 to immerse and clean the cleaning component 21 again.

[0104] In the deep immersion stage S5, the control component 300 controls the operation of the liquid supply component. After the liquid supply component is in operation, the cleaning liquid in the clean water tank 41 flows into the liquid supply pipeline according to the preset flow rate and velocity, and then flows through the liquid supply pipeline and the spray nozzle 23 to the cleaning component 21 and the cleaning tank 210. Throughout the deep cleaning stage S5, the above process is continuously executed, thereby continuously immersing the cleaning component 21.

[0105] After the deep soaking stage S5 has been performed for the preset duration, the control component 300 can continue to perform the pulse cleaning stage S4.

[0106] After the soaking phase S1 and the cleaning phase S2 are completed, dirt may still adhere to the surface of the cleaning member 21, or after the soaking phase S1 and the cleaning phase S2 are completed, the root portions of the bristles of the cleaning member 21 are not fully wetted, resulting in the cleaning member 21 not being completely cleaned. By performing the deep soaking phase S5, water is supplied to the cleaning member 21 and the cleaning tank 210 to wash away the dirt adhering to the surface of the cleaning member 21, and at the same time, the cleaning member 21 is sufficiently wetted so that the root portions of the bristles of the cleaning member 21 are completely wetted, which facilitates subsequent cleaning of the root portions of the bristles and ensures the cleaning effect on the cleaning member 21.

[0107] Pulse cleaning phase S4: the liquid supply assembly is controlled to supply liquid to the cleaning member 21 and the cleaning tank 210, and the dirt suction fan 5 is controlled to operate at the same time, so that the liquid moves up and down in the dirt suction pipeline 33 to perform pulse cleaning on the dirt suction pipeline 33.

[0108] In this embodiment, in the pulse cleaning phase S4, the dirt suction fan 5 may use the cleaning liquid discharged in the deep soaking phase S5 to clean the dirt suction pipeline 33. In this case, compared with the second embodiment described above, in this embodiment, in the pulse cleaning phase S4, the liquid supply assembly only needs to discharge a relatively small amount of cleaning liquid to the cleaning member 21 and the cleaning tank 210 to meet the water amount required for cleaning the dirt suction pipeline 33. For example, assuming that Cg of cleaning liquid is required to clean the dirt suction pipeline 33, Cg of cleaning liquid needs to be discharged in the second embodiment described above; however, in this embodiment, if the liquid supply assembly discharges Mg of cleaning liquid in the deep soaking phase S5, the liquid supply assembly only needs to discharge (C-M)g of cleaning liquid additionally in the pulse cleaning phase S4 to clean the dirt suction pipeline 33.

[0109] In one embodiment, the liquid supply flow rate of the liquid supply assembly in the deep soaking phase S5 is Q1, and the liquid supply flow rate of the liquid supply assembly in the pulse cleaning phase S4 is Q2; where Q2<Q1. In this embodiment, since the amount of water required in the pulse cleaning phase S4 is relatively small, the liquid supply assembly is controlled to supply water at a low flow rate in the pulse cleaning phase S4. At the same time, it can be seen from the above flow rate relationship that the water supply amount in the deep soaking phase S5 is relatively large, and the liquid supply assembly only needs to provide a small amount of water in the pulse cleaning phase S4 to meet the water amount required for cleaning the dirt suction pipeline 33.

[0110] It is worth noting that, in this embodiment, if the water discharged in the deep soaking phase S5 can already meet the water amount required for cleaning the dirt suction pipeline 33, no cleaning liquid needs to be discharged in the pulse cleaning phase S4, that is, the liquid supply flow rate Q2 of the liquid supply assembly is 0 at this time.

[0111] After the execution duration of the pulse cleaning phase S4 reaches the preset duration, the control assembly 300 may continue to perform the dirt suction phase S3.

[0112] As can be seen from the above, in this embodiment, the pulse cleaning stage S4 utilizes the water supplied by the deep soaking stage S5 and the water supply component to clean the suction pipe 33, ensuring sufficient water volume and effective cleaning. Furthermore, since the water in the deep soaking stage S5 can be used to clean both the cleaning component 21 and the suction pipe 33, it achieves efficient use of water resources by cleaning both components with less water. Additionally, less wastewater is generated when cleaning the cleaning component 21 and the suction pipe 33 with less water; the suction fan 5 does not need to operate at high power continuously to absorb the wastewater from the cleaning component 21 and the cleaning tank 210 into the waste collection tank 3, saving electricity and extending the service life of the suction fan 5.

[0113] S3: Control the operation of cleaning component 21 and suction fan 5 to suck the residual liquid in cleaning component 21 and cleaning tank 210 into the sludge collection tank 3 through suction port 24.

[0114] During the deep soaking stage S5, the cleaning component 21 is soaked a second time to wet the roots of the bristles. In this embodiment, after the control component 300 controls the cleaning component 21 to rotate, the scraper will scrape off the dirt from the roots of the bristles of the cleaning component 21. After the dirt is scraped off, it is absorbed by the suction fan 5 into the waste collection bucket 3. After all the dirt from the roots of the bristles of the cleaning component 21 has been scraped off, the suction fan 5 absorbs the water on the cleaning component 21 and the cleaning tank 210 to reduce the water content of the cleaning component 21 and the cleaning tank 210.

[0115] After the execution time of the sludge extraction stage S3 reaches the preset time, the control component 300 can stop the execution of the sludge extraction stage S3 and end the self-cleaning process.

[0116] As can be seen from the above, in this embodiment, the sludge extraction stage S3 can simultaneously clean and spin-dry the cleaning component 21, resulting in high cleaning efficiency for the cleaning component 21.

[0117] The following specific embodiments illustrate the self-cleaning method of the surface cleaning device 1 in this application:

[0118] Example 1:

[0119] Soaking Phase S1: Control component 300 controls the operation of the water electrolysis component and controls the liquid supply component to supply acidic solution to the cleaning component 21 and the cleaning tank 210 at a liquid supply flow rate of 160-180 g / min. At the same time, control component 300 controls the cleaning component 21 and the suction fan 5 to not operate. After the execution time of soaking phase S1 reaches 20-30 seconds, control component 300 stops executing soaking phase S1 and continues to execute the cleaning phase.

[0120] Cleaning Phase S2: Control component 300 stops the electrolytic water component and starts the cleaning unit 21 and the suction fan 5. After the cleaning unit 21 and the suction fan 5 have been running for 4-5 seconds, control component 300 starts the liquid supply component, supplying water to the cleaning unit 21 and the cleaning tank 210 at a flow rate of 160-180 g / min. Specifically, control component 300 can first control the suction fan 5 to run at 90-100 W for 1-3 seconds, then at 245-255 W for 1-3 seconds, and finally at 110-130 W for 6-8 seconds. After the cleaning phase lasts for 10-15 seconds, control component 300 stops the cleaning phase and continues with the sludge extraction phase S3.

[0121] Sludge removal phase S3: Control component 300 stops the operation of the water electrolysis component and the liquid supply component, and controls the operation of cleaning component 21 and suction fan 5. Specifically, control component 300 can first control suction fan 5 to run at 90-100W for 4-6 seconds, and then control suction fan 5 to run at 110-130W for 10-20 seconds. After the execution time of sludge removal phase S3 reaches 15-25 seconds, control component 300 stops executing sludge removal phase S3, ending the self-cleaning process.

[0122] Example 2:

[0123] Soaking Phase S1: Control component 300 controls the operation of the water electrolysis component and controls the liquid supply component to supply acidic solution to the cleaning component 21 and the cleaning tank 210 at a liquid supply flow rate of 160-180 g / min. At the same time, control component 300 controls the cleaning component 21 and the suction fan 5 to not operate. After the execution time of soaking phase S1 reaches 20-30 seconds, control component 300 stops executing soaking phase S1 and continues to execute the cleaning phase.

[0124] Cleaning Phase S2: Control component 300 stops the operation of the electrolytic water component and the liquid supply component, and controls the operation of cleaning component 21 and suction fan 5. Specifically, control component 300 can first control suction fan 5 to run at 90-100W for 4-6 seconds, then control it to run at 245-255W for 1-3 seconds, and finally control it to run at 110-130W for 13-15 seconds. After the cleaning phase lasts for 15-25 seconds, control component 300 stops the cleaning phase and continues with deep soaking phase S5.

[0125] Deep soaking stage S5: The liquid supply component supplies liquid to the cleaning component 21 and the cleaning tank 210 at a flow rate of 160-180 g / min. At the same time, the control component 300 controls the cleaning component 21, the suction fan 5, and the electrolytic water component to stop operating. After the deep soaking stage S5 lasts for 20-30 seconds, the control component 300 stops executing the deep soaking stage S5 and continues to execute the pulse cleaning stage S4.

[0126] Pulse cleaning phase S4: Control component 300 controls the electrolytic water component and cleaning component 21 to not operate, controls the suction fan 5 to operate, and simultaneously controls the liquid supply component to supply liquid to the cleaning component 21 and cleaning tank 210 at a liquid flow rate of 50-70 g / min. During pulse cleaning phase S4, control component 300 can control the suction fan 5 to operate alternately at high and low power. Specifically, when the suction fan 5 operates at high power, its operating power is 45-55W; when it operates at low power, its operating power is 20-30W. The suction fan 5 can operate at high power for 1-3 seconds and then at low power for 1-3 seconds. After the pulse cleaning phase S4 has lasted 20-30 seconds, control component 300 stops executing the deep soaking phase S5 and continues executing the sludge extraction phase S3.

[0127] Sludge removal stage S3: Control component 300 stops the operation of the water electrolysis component and the liquid supply component, and controls the operation of cleaning component 21 and sludge suction fan 5. Specifically, control component 300 can first control sludge suction fan 5 to run at 90-100W for 4-6 seconds, then control it to run at 110-130W for 20-25 seconds, and finally control it to run at 240-260W for 1-3 seconds. After the sludge removal stage S3 has been executed for 20-30 seconds, control component 300 stops executing sludge removal stage S3 and continues with drying stage S6.

[0128] Drying stage S6: Control component 300 stops the operation of the electrolytic water component, liquid supply component, suction fan 5, and cleaning component 21, and controls the heating device and fan on base 200 to dry cleaning component 21 and suction pipe 33. During the drying process, control component 300 can control cleaning component 21 to rotate 200-300ms every 1-2 minutes. When the drying time reaches 60-80 minutes, control component 300 can stop executing drying stage S6 and end the self-cleaning process.

[0129] It can be seen that Example 1 has a faster cleaning speed, while Example 2 has a slower cleaning speed.

Claims

1. A self-cleaning method for a surface cleaning device, the surface cleaning device comprising a surface cleaning machine and a base, the base having a cleaning tank, the surface cleaning machine comprising a floor brush with cleaning components mounted thereon, a liquid supply assembly, and a suction system, the floor brush having a suction port and scrapers that abut against the cleaning components, the suction system comprising a sludge container, a suction fan that generates negative pressure within the sludge container, and a suction pipe connecting the suction port and the sludge container, characterized in that... The self-cleaning method of the surface cleaning equipment includes: Soaking stage S1: Control the liquid supply component to supply liquid to the cleaning component and / or the cleaning tank to soak and clean the cleaning component; Cleaning stage S2: The liquid supply component stops supplying liquid, controls the operation of the cleaning component and the suction fan, and after a certain period of time, controls the liquid supply component to supply liquid again. The cleaning component rotates, and the scraper scrapes and cleans the cleaning component. Under the action of the suction fan, the sewage and / or dirt generated after scraping is sucked into the sewage collection bucket through the suction port and the suction pipe. S3: Control the operation of the cleaning component and the suction fan to draw the residual liquid in the cleaning component and the cleaning tank into the sludge collection bucket through the suction port; In the cleaning stage S2 and / or the sludge extraction stage S3, the sludge extraction fan is first controlled to operate at a first power, and then the operating power of the sludge extraction fan is increased after the target time.

2. The self-cleaning method of the surface cleaning equipment according to claim 1, characterized in that, The self-cleaning method of the surface cleaning equipment also includes: Before the sludge extraction stage S3, there is a pulse cleaning stage S4: controlling the liquid supply component to supply liquid to the cleaning component and the cleaning tank, and controlling the operation of the sludge suction fan to make the liquid move up and down in the sludge suction pipe to perform pulse cleaning on the sludge suction pipe. In the pulse cleaning stage S4, the operating power of the suction fan is controlled to be less than the first power.

3. The self-cleaning method of the surface cleaning equipment according to claim 2, characterized in that, The self-cleaning method of the surface cleaning equipment also includes: Before the pulse cleaning stage S4, there is a deep soaking stage S5: the liquid supply component is controlled to supply liquid to the cleaning component and the cleaning tank to soak and clean the cleaning component again.

4. The self-cleaning method of the surface cleaning equipment according to claim 2, characterized in that, In the pulse cleaning stage S4, the suction fan is controlled to operate at a second power; or, the suction fan is controlled to operate alternately at a third power and a fourth power; wherein the third power and the fourth power are not equal.

5. The self-cleaning method of the surface cleaning equipment according to claim 3, characterized in that, The liquid supply flow rate of the liquid supply component in the deep immersion stage S5 is Q1, and the liquid supply flow rate of the liquid supply component in the pulse cleaning stage S4 is Q2; wherein, Q2 <Q1。 6. The self-cleaning method of the surface cleaning equipment according to claim 1, characterized in that, During the cleaning stage S2, the operating power of the suction fan first increases and then decreases; or, the operating power of the suction fan gradually increases.

7. The self-cleaning method of the surface cleaning equipment according to claim 1, characterized in that, During the sludge extraction stage S3, the operating power of the sludge suction fan first increases and then decreases; or, the operating power of the sludge suction fan gradually increases.

8. The self-cleaning method of the surface cleaning equipment according to any one of claims 1 to 7, characterized in that, The surface cleaning machine is also equipped with a heating element; the self-cleaning method of the surface cleaning equipment further includes: Turn on the heating component so that the liquid supply component discharges hot water into the cleaning tank and the cleaning component.

9. The self-cleaning method of the surface cleaning equipment according to any one of claims 1 to 7, characterized in that, The base is also equipped with a fan and a heating device, and the self-cleaning method of the surface cleaning equipment further includes: Following the sludge extraction stage S3, a drying stage S6 is provided: controlling the heating device and the fan to dry the cleaning component and the sludge suction pipe; and simultaneously controlling the operation of the cleaning component.

10. The self-cleaning method of the surface cleaning equipment according to claim 1, characterized in that, The surface cleaning equipment is equipped with an electrolytic water component; during the soaking stage S1, the operation of the electrolytic water component is controlled.

Images