A control method for household cleaning equipment

Abstract

The present invention provides a control method for a household cleaning device, the household cleaning device includes a roller brush, which is rotatably arranged at the front of a floor brush; a driving motor, which is used to control the rotation of the roller brush; a body hinged to the floor brush; and a control unit arranged on the body; a rear wheel, which is rotatably arranged at the rear of the floor brush; the floor brush is supported on a surface to be cleaned through the roller brush and the rear wheel, and the control method includes: the control unit obtains a heavy dirt processing signal, and adjusts the resistance between the roller brush and the surface to be cleaned according to the heavy dirt processing signal, so that the bristles on the roller brush pressurize and rub the dirty surface to be cleaned. Such a cleaning method improves the cleaning efficiency of heavy dirt by adjusting the resistance between the roller brush and the surface to be cleaned, improves the cleaning effect of heavy dirt, and is more efficient when handling general cleaning work. The surface cleaning device is more intelligent and flexible, which is convenient for customers to operate and greatly improves the customer's user experience.

Description

Technical Field

[0001] The present application belongs to the technical field of cleaning equipment, and specifically provides a control method for a household cleaning equipment. Background Art

[0002] As people's living standards improve, various surface cleaning devices have gradually entered people's daily lives. An existing type of surface cleaning device includes a cleaning component arranged on a floor brush, a dirt collection box / barrel, and a scraping guide. The cleaning component includes a roller brush and a cleaning member arranged on the roller brush. The cleaning member rotates and contacts with the surface to be cleaned to wipe the surface to be cleaned. The scraping guide scrapes the rotating cleaning member, and the dirt adsorbed by the cleaning member is scraped off and flows into the dirt collection box / barrel. Although this surface cleaning device provides great convenience for cleaning the floor of a house and frees people from daily heavy housework, we found that this surface cleaning device can handle general light dirt or surface pollution that has just occurred, but the effect on heavier or dried dirt is average.

[0003] The patent with application number CN201980095011.3 and titled "Surface cleaning machine with enhanced mode and for operating surface" discloses a surface cleaning machine, which includes a cleaning head (12), at least one cleaning component unit (16, 18) rotatably arranged at the cleaning head (12) and at least one driving motor (32, 34) for rotationally driving at least one cleaning component unit (16, 18), wherein the rotation speed of at least one cleaning component unit (16, 18) is variable and a rotation speed adjustment device (206) for at least one cleaning component unit (16, 18) is provided, and wherein an enhanced mode is provided, in which the rotation speed of at least one cleaning component unit (16, 18) is increased compared to the standard rotation speed of at least one cleaning component unit (16, 18), and / or a sweeping mode is provided, in which the rotation speed of at least one cleaning component unit (16, 18) is reduced compared to the standard rotation speed of at least one cleaning component unit (16, 18). Although this technical solution has set up a variety of cleaning modes, it only utilizes changing the rotation speed of the cleaning unit to deal with different dirt. Although only adjusting the rotation speed changes the number of contact frictions between the cleaning unit and the surface to be cleaned, the downward pressure on the surface to be cleaned is not changed. Therefore, for heavy dirt, especially more stubborn stains such as dried stains, oily stains, etc., the treatment effect is still not able to achieve good results. Summary of the invention

[0004] In order to solve the above problems in the prior art, the present application provides a cleaning control method for a surface cleaning device, which increases the wiping force of the roller brush on the surface to be cleaned by adjusting the resistance force between the roller brush and the surface to be cleaned. This method has good cleaning effect and high efficiency for heavy dirt.

[0005] In order to achieve the above technical objectives, the present invention provides a control method for a household cleaning device, the household cleaning device comprising a roller brush rotatably disposed at the front of a floor brush; a driving motor for controlling the rotation of the roller brush; a body hinged to the floor brush; and a control unit disposed on the body; a rear rotating member rotatably disposed at the rear of the floor brush; the floor brush is supported on a surface to be cleaned by the roller brush and the rear rotating member, the control method comprising: the control unit obtains a heavy dirt processing signal, and adjusts the contact force between the roller brush and the surface to be cleaned according to the heavy dirt processing signal, so that the bristles on the roller brush perform pressurized friction cleaning on the dirty surface to be cleaned.

[0006] Furthermore, the resistance force between the roller brush and the surface to be cleaned is adjusted according to the heavy dirt processing signal, including adjusting the resistance force between the roller brush and the surface to be cleaned by a pressure device after stopping the movement of the body or the rear rotating member or the roller brush.

[0007] Furthermore, it also includes an operating unit, and the control unit obtains a heavy dirt processing signal sent by the operating unit.

[0008] Furthermore, a sensor is provided on the body, and a standard threshold value of the movement of the body or the floor brush within a unit time corresponding to the heavy dirt treatment signal is provided in the control unit. The sensor feeds back the working threshold value of the movement of the body or the floor brush within a unit time to the control unit, and the control unit compares the working threshold value with the standard threshold value. If the working threshold value is greater than or equal to the standard threshold value, an instruction is issued to start the heavy dirt treatment signal.

[0009] Furthermore, a heavy dirt processing signal is activated, the body stops moving, the pressure-applying device is started, the rear part of the floor brush is lifted, and the roller brush moves downward following the front end of the floor brush, and the roller brush moves at a first rotation speed V1, so that part of the bristles of the roller brush are squeezed and interference fit with the surface to be cleaned, and the friction with the surface to be cleaned is increased, wherein the standard movement rotation speed of the roller brush is Ve, V1≥Ve.

[0010] Furthermore, a heavy dirt processing signal is activated, the body stops moving, the pressure-applying device is started, and the floor brush moves downward as a whole, so that the roller brush moves downward with the floor brush, and the roller brush moves at a second rotation speed V2, and the bristles on the roller brush are squeezed and interference fit with the surface to be cleaned, and the friction with the surface to be cleaned is increased, wherein the standard movement speed of the roller brush is Ve, V2≤Ve.

[0011] Furthermore, the pressurizing device includes a floating mechanism arranged between the floor brush and the rear rotating member, when the floating connecting mechanism is started, the rear rotating member rises, and the floor brush drives the roller brush to move downward as a whole relative to the rear rotating member, so that the bristles of the roller brush are flattened and interference fit with the surface to be cleaned; or, the pressurizing device includes a floating mechanism connected to the roller brush and arranged on the floor brush, when the floating mechanism is started, the floating mechanism drives the roller brush to move downward, so that the bristles of the roller brush are flattened and interference fit with the surface to be cleaned; or, the pressurizing device includes an electromagnetic device arranged on the floor brush and a magnetizer correspondingly arranged in the roller brush, the electromagnetic device has opposite magnetism to the magnetizer, the heavy dirt handling function is started, the body and the rear rotating member stop rotating, and at the same time the electromagnetic device is turned on, the magnetizer is repelled, so that the floor brush drives the roller brush to move downward, so that the bristles of the roller brush are flattened and interference fit with the surface to be cleaned.

[0012] Furthermore, it also includes a rear rotating part driving motor, which starts a heavy dirt processing signal, the body stops moving, the roller brush moves at a second speed V2, the rear rotating part driving motor drives the rear rotating part to rotate at a third speed V3, and the direction of rotation of the rear rotating part is opposite to the direction of rotation of the roller brush, and V3≤V2.

[0013] Furthermore, the floor brush is also provided with a vibration motor, which starts a heavy dirt processing signal, stops moving the body, lifts the rear rotating part, disconnects the roller brush from the drive motor, connects the vibration motor to the roller brush and drives the roller brush to vibrate, continuously hitting the surface to be cleaned, and the running time is T1 seconds.

[0014] Further, the vibration motor stops moving, and the drive motor starts, driving the roller brush to rotate, and the rotation time is T2 seconds. The number of times the vibration motor and the drive motor alternately run is N, where T1≥T2 and N≥1.

[0015] The self-cleaning method of the surface cleaning device mentioned above in the present application has at least the following beneficial effects:

[0016] 1. A heavy dirt processing signal is obtained through the control unit, the body and / or the rear rotating part stops moving, the roller brush rotates and cleans the surface to be cleaned, and the contact area or contact force between the roller brush and the surface to be cleaned is adjusted, so that the contact area between the bristles of the roller brush and the surface to be cleaned is increased or the resistance between the bristles and the surface to be cleaned is increased, so that the bristles can be squeezed by a larger force, thereby increasing the friction force when the bristles contact the surface to be cleaned, and then improving the wiping force of the bristles, especially the friction cleaning force of dried stains, meeting people's requirements for cleaning heavy dirt. Such a control method improves the cleaning efficiency of heavy dirt and improves the cleaning effect. Moreover, the cleaning work is more intelligent and flexible, which is convenient for customers to operate and greatly improves the customer's user experience.

[0017] 2. Obtain the heavy dirt treatment signal sent by the operating unit through the control unit, and start the heavy dirt treatment function. For example, a heavy dirt treatment button electrically connected to the control unit is set on the handle or the body, and the heavy dirt treatment button is pressed to start the heavy dirt treatment function. This allows customers to start different functions according to different dirt, flexibly handle different cleaning modes, and achieve thorough cleaning of different dirt without causing waste of resources.

[0018] 3. A sensor is installed on the machine body, and a standard threshold value of the movement of the machine body or floor brush in unit time corresponding to the heavy dirt signal is installed in the control unit. The sensor feeds back the working threshold value of the movement of the machine body or floor brush in unit time to the control unit, and the control unit compares the working threshold value with the standard threshold value. If the working threshold value is greater than or equal to the standard threshold value, a command is issued to start the heavy dirt processing signal. For example, this threshold value is the number of times the machine body or floor brush moves; or the time for the machine body or floor brush to repeatedly move in a certain area. Generally, when people encounter heavy dirt in a certain place, they will repeatedly move the machine body to drive the floor brush to move back and forth in the dirty place. We use this signal as a signal to start the heavy dirt processing. Starting the heavy dirt processing function makes the control process of the entire cleaning work more intelligent. For example, we write in the control unit of the cleaning device that the number of times the fuselage moves back and forth in a unit time corresponding to the heavy dirt signal is 3 times, and the sensor feeds back the actual number of times the fuselage moves back and forth repeatedly in a unit time to the control unit. If n is greater than or equal to 3 times, the heavy dirt treatment function is started; or, the control unit writes that the time value of the fuselage moving back and forth in a unit time corresponding to the heavy dirt signal is 5 seconds, and the sensor feeds back the actual duration t of the fuselage moving back and forth repeatedly in a unit time to the control unit. If t is greater than or equal to 5 seconds, the heavy dirt treatment function is started. Such a cleaning method makes the cleaning device more flexible, and the surface cleaning work is more efficient and intelligent, so that the roller brush can wipe the surface to be cleaned better. Therefore, we define that when the surface cleaning device moves back and forth at the same position for more than 3 times or 5 seconds, it is considered that the customer encounters heavy dirt that needs to be handled, and the surface cleaning device automatically starts the heavy dirt treatment function to achieve automatic cleaning of heavy dirt. Such a setting makes the surface cleaning device have good cleaning effect, high cleaning efficiency, more flexible and intelligent work, and good customer experience.

[0019] 4. By starting the heavy dirt processing signal, the machine body stops moving, the pressure device starts, the rear of the floor brush is lifted, and the roller brush moves downward following the front end of the floor brush, and the roller brush moves at the first speed V1, so that part of the bristles of the roller brush are squeezed and interfere with the surface to be cleaned, and the friction with the surface to be cleaned is increased, wherein the standard movement speed of the roller brush is Ve, V1 ≥ Ve. More bristles are flattened and interfere with the surface to be cleaned, so that the contact area between the bristles of the roller brush and the surface to be cleaned is further increased, and at the same time, the downward pressure on the surface to be cleaned is increased, thereby increasing the friction between the roller brush and the surface to be cleaned during the rotation of the roller brush, that is, increasing the wiping force and improving the cleaning effect. The roller brush moves at a first rotation speed V1, wherein the standard movement rotation speed of the roller brush is Ve, V1 ≥ Ve. Such a setting further increases the frequency of contact between the roller brush and the surface to be cleaned within the same time period. At the same time, since only part of the bristles of the roller brush are in contact with the surface to be cleaned, although the downward pressure increases, it does not greatly increase the resistance to the drive motor when the roller brush rotates, so that the roller brush can still run at high speed and the performance of the drive motor is not affected. However, at the same time, the friction between the bristles and the surface to be cleaned is increased, thereby increasing the frequency of cleaning, improving the cleaning efficiency and wiping intensity, and further improving the cleaning effect.

[0020] 5. Start the heavy dirt processing signal, stop the movement of the machine body, start the pressure device, and the floor brush moves downward as a whole, so that the roller brush moves downward with the floor brush, and the roller brush moves at a second speed V2, and the bristles on the roller brush are squeezed and interfere with the surface to be cleaned, and the friction with the surface to be cleaned is increased, wherein the standard movement speed of the roller brush is Ve, V2≤Ve, so that the contact area between the bristles of the roller brush and the surface to be cleaned remains unchanged, and the downward pressure between the roller brush and the surface to be cleaned is increased, and the speed of the roller brush is adjusted to decrease to avoid increasing the movement resistance of the drive motor, so that the bristles are flattened and interfere with the surface to be cleaned. The resistance force between the bristles and the surface to be cleaned is increased, thereby increasing the friction between the bristles and the surface to be cleaned, and then increasing the wiping force, thereby improving the cleaning power of the surface cleaning equipment for heavy dirt, especially dried heavy dirt. By reducing the rotation speed of the roller brush, the contact time of the bristles with the surface to be cleaned per unit area is further increased, thereby further increasing the duration of friction between the bristles and the surface to be cleaned, thereby continuously improving the cleaning effect for heavy dirt. At the same time, such a control method makes the cleaning equipment more intelligent, can handle surface cleaning in a variety of environments, is more humane, and provides a good customer experience.

[0021] 6. By setting a rear rotating part driving motor, starting a heavy dirt processing signal, the machine body stops moving, and the rear rotating part driving motor drives the rear rotating part to rotate, and the direction of rotation of the rear rotating part is opposite to that of the roller brush, the roller brush moves at a second speed V2, and the rear rotating part moves at a third speed V3, and V3 is less than or equal to V2. Since the rear rotating part on the surface cleaning device assists the roller brush in moving, such a control method enables the roller brush to better realize the slow movement of the floor brush when encountering heavy dirt, and allows the roller brush to move slowly in the area where the heavy dirt is located to clean the dirt with force. At the same time, when the surface cleaning device handles general surface cleaning work, the rear rotating part can follow or assist in moving forward, so that customers It can save effort; when cleaning work is carried out in the area that needs key cleaning, the rotation speed of the rear rotating part is lower than the movement speed of the roller brush, so that the roller brush can move slowly in the heavy dirt treatment area better, increase the contact force between the bristles of the roller brush and the surface to be cleaned and the friction in this area, and the duration of the friction is also prolonged to meet the vigorous cleaning of heavy dirt, avoiding the problem that it can only assist the brush to move forward quickly and the heavy dirt treatment is also a one-by-one cleaning, resulting in poor cleaning. The control method of the surface cleaning equipment described in the present invention assists cleaning by adjusting the rotation speed of the rear rotating part, which not only improves the cleaning efficiency and improves the cleaning effect, but also makes the cleaning work more flexible and intelligent, and provides a good customer experience.

[0022] 7. The floor brush is also provided with a vibration motor, which starts a heavy dirt processing signal, stops the body of the machine, lifts the rear rotating part, disconnects the roller brush from the drive motor, connects the vibration motor to the roller brush and drives the roller brush to vibrate, and continuously beats the surface to be cleaned. The operation time is T1 second, which weakens the adhesion between the dirt and the surface to be cleaned, especially the adhesion between the dried stains and the surface to be cleaned. At the same time, the contact force and frequency of the roller brush and the dirty part of the surface to be cleaned are greatly increased, which is more targeted and greatly improves the cleaning efficiency.

[0023] 8. By starting the drive motor to drive the roller brush to rotate, the rotation time is T2 seconds, and the number of times the vibration motor and the drive motor alternately run is N, where T1≥T2, N≥1, the adhesion between the dirt and the surface to be cleaned is weakened, especially the adhesion between the dried stains and the surface to be cleaned, and then starting the drive motor, the drive motor drives the roller brush to move, even if the resistance between the roller brush and the surface to be cleaned is not increased, the dirt is easier to clean, when the resistance between the roller brush and the surface to be cleaned increases, the bristles of the roller brush are flattened and have an interference fit with the surface to be cleaned, the wiping force is increased, and the two run alternately, reducing the running time of the drive motor when it is subject to movement resistance, and will not cause large heat loss due to the obstruction of the drive motor operation. Such a cleaning effect is better, the cleaning efficiency is improved, and the service life of the drive motor is guaranteed. Such a control method makes the surface cleaning equipment reliable, excellent in performance, and good in cleaning effect, humanized, convenient and flexible, and the customer experience is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of a first embodiment of the surface cleaning device of the present invention;

[0025] Figure 2 yes Figure 1 Schematic diagram of the floor brush cooperating with the surface to be cleaned in the general cleaning mode;

[0026] Figure 3 yes Figure 1 Schematic diagram of the floor brush in the figure cooperating with the surface to be cleaned when handling heavy dirt;

[0027] Figure 4 is a schematic diagram of the surface cleaning device of the second embodiment when performing a general cleaning mode;

[0028] Figure 5 yes Figure 4 An enlarged view of the floor brush in the general cleaning mode cooperating with the surface to be cleaned;

[0029] Figure 6 is a schematic diagram of the surface cleaning device of the second embodiment when performing heavy dirt treatment;

[0030] Figure 7 yes Figure 6 A magnified view of the floor brush in the figure cooperating with the surface to be cleaned during heavy dirt cleaning;

[0031] Figure 8 is a schematic diagram of the surface cleaning device in the third embodiment performing cleaning work;

[0032] Fig. 9 yes Figure 7 Schematic diagram of the internal structure of the floor brush.

[0033] Description of reference numerals:

[0034] 1-body; 12-positioning part; 13-sewage suction hose; 2-floor brush; 21-front; 22-rear; 23-water spray port; 24-sewage suction port; 25-roller brush chamber; 26-connector; 27-upper shell; 28-lower shell; 29-extension arm; 3-sewage container; 4-roller brush; 41-roller; 42-cleaning part; 5-rear rotating part; 6-clean water tank; 7-handle bar; 71-handle; 8-display screen; 9-drive motor; 10-vibration motor. DETAILED DESCRIPTION

[0035] It should be noted that, in the description of this application, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are merely for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] The present invention provides a household cleaning device, such as Figures 1 to 8As shown, it includes a roller brush 4, which is rotatable on the front part 21 of the floor brush 2; a driving motor (not shown in the figure) for controlling the rotation of the roller brush 4; a body 1 hinged to the floor brush 2; and a control unit (not shown in the figure) arranged on the body 1; a rear rotating member 5, which is rotatable on the rear part 22 of the floor brush 2; the floor brush 2 is supported on the surface to be cleaned by the roller brush 4 and the rear wheel 5, and the control method of the surface cleaning device at least includes a heavy dirt processing process: the control unit obtains a heavy dirt processing signal, and adjusts the resistance between the roller brush 4 and the surface to be cleaned according to the heavy dirt processing signal, so that the brush on the roller brush 4 The bristles are pressurized and rubbed against the dirty surface to be cleaned, so that the contact area between the bristles of the roller brush 4 and the surface to be cleaned is increased or the resistance between the bristles and the surface to be cleaned is increased, so that the bristles can be squeezed by a larger force, thereby increasing the friction when the bristles contact the surface to be cleaned, and then improving the wiping force of the bristles, especially the friction cleaning force of dried stains, meeting people's cleaning requirements for heavy dirt. Such a control method improves the cleaning efficiency of heavy dirt and improves the cleaning effect. Moreover, the cleaning work is more intelligent and flexible, which is convenient for customers to operate and greatly improves the customer's user experience.

[0038] The control method of the household cleaning device will be described in detail below in conjunction with the specific structure of the household cleaning device.

[0039] Embodiment 1

[0040] As a surface cleaning device provided by the present invention, Figures 1 to 3As shown, it includes a body 1, a floor brush 2 rotatably connected to the body 1, a dirt suction motor installed in the body 1 (not shown in the figure), a battery pack (not shown in the figure) for powering electrical devices, a liquid supply system for providing liquid to the roller brush 4 on the floor brush 2, and a dirt holding bucket 3 detachably arranged on the body 1, the dirt suction motor sucks dirty liquid or dirt into the dirt holding bucket 3, a display screen 8 is provided at the upper end of the body 1, the dirt suction motor in this embodiment is a vacuum motor, a positioning portion 12 protruding forward is provided at the upper end of the body 1, the dirt holding bucket 3 is arranged below the positioning portion 12, the dirt holding bucket 3 includes a dirt holding cavity, a cover body sealed on the dirt holding cavity, an air intake channel (not shown in the figure) is provided in the body 1, and an air vent (not shown in the figure) connected to the air intake channel 13 is provided on the dirt holding bucket 3. In this embodiment, the air vent is arranged on the cover body, and the cover body is also provided with a accommodating cavity for placing a solid-liquid separation structure such as HEPA (not shown in the figure). The front portion 21 of the floor brush 2 is provided with a roller brush 4 for wiping and cleaning the surface to be cleaned and a rear rotating member 5 for assisting the movement of the surface cleaning device. The rear rotating member 5 is arranged at the rear portion 22 of the floor brush 2. In this embodiment, the rear rotating member 5 is two rear wheels arranged on the left and right sides of the rear portion 22 of the floor brush 2. The floor brush 2 is supported on the surface to be cleaned by the roller brush 4 and the two rear wheels. The floor brush 2 has a roller brush cavity 25. The front portion 21 of the floor brush 2 is provided with a roller brush cavity 25. The roller brush 4 is arranged in the roller brush cavity 25. The roller brush cavity 25 is also provided with a sewage suction port 24 and a water spray port 23 opening toward the roller brush. The liquid supply system includes a clean water tank 6, a water pump (not shown in the figure) arranged on the rear side of the first fuselage, and a water supply pipeline arranged in the fuselage 1 for connecting the water spray port 23 and the clean water tank 6. The sewage bucket 3 and the sewage suction port 2 4 is also provided between the two to connect the two (not shown in the figure), the pipe mouth 3 of the suction pipe is arranged in the dirt holding cavity, the fuselage 1 is also provided with an exhaust channel (not shown in the figure), the fuselage is also provided with an exhaust port connected with the exhaust channel, and an air inlet channel connected with the suction motor and the dirt holding bucket, so as to suck the air in the dirt holding bucket into the fuselage, cool the suction motor and other electrical components and the battery pack, and at the same time, the hot air generated after flowing through the inside of the suction motor and the battery pack or other electrical components is discharged outside the fuselage 1 through the exhaust channel (not shown in the figure) and the exhaust port in the fuselage 1, so as to form a negative pressure in the dirt holding bucket, and with the assistance of the roller brush, the dirty liquid on the surface to be cleaned or the roller brush enters the suction pipe through the suction port and then enters the dirt holding bucket 3 through the suction pipe, thereby completing the suction process of the surface cleaning machine.

[0041] In this embodiment, a handle bar 7 is provided at the upper end of the fuselage. Figure 1As shown, a closed handle 71 is provided on the handle rod 7, and a power button (not shown in the figure) and a function button (not shown in the figure) are provided on the handle 71. A control panel is provided on the body of the surface cleaning device, and the control panel is the control unit of the surface cleaning device. The control unit includes a main control chip, and the power button and the function button are electrically connected to the control unit. The contact force between the roller brush and the surface to be cleaned is adjusted according to the heavy dirt treatment signal, including adjusting the contact force between the roller brush and the surface to be cleaned by a pressure device after stopping the movement of the body or the rear rotating part or the roller brush. The pressure device in this embodiment is a floating mechanism (not shown in the figure) arranged between the floor brush 2 and the rear wheel 5. When the heavy dirt treatment function button on the handle is pressed, the floating mechanism is started, and the two rear wheels 5 rise, as shown in FIG. Figure 2 and Figure 3 As shown, the weight of the machine body is more loaded on the floor brush, and the floor brush 2 drives the roller brush 4 to move downward relative to the rear wheel 5 as a whole, so that the bristles of the roller brush are flattened and have an interference fit with the surface to be cleaned.

[0042] The process of the cleaning method of the surface cleaning device is as follows:

[0043] 1) Power-on steps: The customer rotates the machine body to a certain angle, that is, a more comfortable angle when holding the handle bar, activates the power-on button on the grip of the handle bar 7, turns on the surface cleaning device, and selects the standard cleaning mode button.

[0044] 2) Enter the cleaning step: At this time, the main control chip controls to start the liquid supply device first, and the water pump sprays the cleaning liquid in the clean water tank to the surface to be cleaned or the roller brush through the water spray port at the first flow value Q1; at the same time, the drive motor is turned on, and the drive motor drives the roller brush to rotate at the standard motion speed Ve, and the brush body on the roller brush cleans the surface to be cleaned. In the cleaning step, there is also a dirt suction stage: at the same time, the dirt suction motor is started, and the drive motor drives the roller brush to rotate at the second speed V2, and the main control chip controls the vacuum motor to work, sucking the dirt on the surface to be cleaned or the roller brush itself into the dirt suction channel, and transmitting it to the dirt storage bucket through the dirt suction channel, wherein V2≥Ve.

[0045] 3) Start the heavy dirt handling step: When encountering heavy dirt, press the heavy dirt handling button to start the heavy dirt handling function, the body stops moving, the control unit obtains the heavy dirt handling signal, controls the floating mechanism to start, the rear wheels rise, and the floor brush moves downward as a whole. At this time, the liquid supply mechanism continues to supply liquid, and the weight of the body is pressed on the floor brush. The roller brush moves downward with the floor brush, so that the bristles of the roller brush are flattened and the resistance to the surface to be cleaned is increased. At the same time, the dirt suction motor is started, and the driving motor drives the roller brush to rotate at a second speed V2, where V1=V2≥Ve. Therefore, in the heavy dirt processing step, the rotation speed of the roller brush is constant, but because the weight of the machine body is pressed on the floor brush, the resistance force between the roller brush and the surface to be cleaned is increased, the contact area between the bristles of the roller brush and the surface to be cleaned is increased, and the bristles on the roller brush are in closer contact with the surface to be cleaned. Therefore, the friction between the roller brush and the surface to be cleaned is increased during the rotation process, so that the heavy dirt is constantly wiped by the increased friction force, so that the heavy dirt is quickly cleaned.

[0046] 4) After the heavy dirt is dealt with, start the standard cleaning mode and the surface cleaning equipment continues normal cleaning work.

[0047] 5) Shutdown step: In response to the instruction of the main control chip, the liquid supply device stops working, then the roller brush stops rotating, and the sewage suction motor continues to work for a certain period of time and then stops, thereby sucking the dirty liquid or dirt from the sewage suction port and the sewage suction channel into the sewage tank, and the cleaning work is completed.

[0048] By arranging a heavy dirt processing function on the surface cleaning device, when the customer encounters heavy dirt that needs to be processed, the heavy dirt processing function is activated, the floor brush and the machine body stop moving, the floating device is activated, the rear wheel rises, and the roller brush moves down with the floor brush, so that the roller brush and the surface to be cleaned have an interference fit, so that the bristles of the roller brush are flattened and fit tightly to the surface to be cleaned, thereby increasing the contact area and resistance of the roller brush and its bristles with the surface to be cleaned, thereby achieving the effect of adjusting the friction between the roller brush and the surface to be cleaned. At this time, the roller brush continuously rotates in this dirt area and cleans the surface to be cleaned, thereby increasing the wiping effect. The wiping area or the wiping force is increased, which meets people's requirements for the friction cleaning force of heavy dirt, especially dried stains, so that they can be wiped continuously with a larger friction force, which not only improves the cleaning efficiency, but also adds a heavy dirt processing function. When this function is activated, it is convenient for the centralized processing of heavy dirt that is difficult to clear, and customers can use the cleaning equipment for general cleaning work. Customers perform different operations on different dirt problems, which makes the cleaning work more intelligent and flexible, and achieves rational use of resources for effective cleaning. The cleaning equipment has high cleaning efficiency and good cleaning effect, which greatly improves the customer's user experience.

[0049] The roller brush in this embodiment includes a roller and a cleaning member arranged on the roller, and the cleaning member is a cleaning cloth with bristles. Alternatively, we can also arrange the driving motor in the roller and directly connect it to the roller. Of course, it can be understood that the roller brush can also include a first roller shaft and a second roller shaft, and a support frame connecting the first roller shaft and the second roller shaft is arranged between the first roller shaft and the second roller shaft, and the cleaning member is sleeved outside the first roller shaft and the second roller shaft, and the first roller shaft is connected to the driving motor through the transmission head on the floor brush, and the first roller shaft drives the second roller shaft to rotate, thereby driving the cleaning member to follow the movement of the two, and the cleaning member contacts the surface to be cleaned and continuously wipes the surface to be cleaned. The rear rotating member can also adopt a roller brush with a roller on which a cleaning member is arranged, so that the surface cleaning device forms a double roller brush structure; such solutions that do not deviate from the intention of the present invention are all within the protection scope of the present invention, and examples are not given here one by one.

[0050] Of course, it is understandable that we can also set an electromagnetic device on the floor brush, and a corresponding magnetizer is set in the roller brush. The electromagnetic device has opposite magnetism to the magnetizer. The heavy dirt handling function is activated, the body and the rear wheels stop rotating, and the electromagnetic device is turned on at the same time. The magnetizer is repelled so that the floor brush drives the roller brush to move downward, so that the bristles of the roller brush are flattened, and the roller brush and the surface to be cleaned have an interference fit, thereby increasing the friction between the bristles and the surface to be cleaned, thereby improving the cleaning efficiency and the cleaning effect. We can also adopt such a scheme: a floating mechanism connected to the roller brush is provided on the floor brush, the heavy dirt handling function is activated, the floating mechanism is actuated, and the floating mechanism drives the roller brush to move downward relative to the floor brush, so that the bristles of the roller brush are flattened or have an interference fit with the surface to be cleaned; such schemes that do not deviate from the intention of the present invention are all within the protection scope of the present invention, and examples are not given here one by one.

[0051] Of course, it is understandable that the dirt suction stage can also be set as follows: the working position of the fuselage body is detected by the position sensor in the surface cleaning device, and the position sensor can be a Hall element; or the working position of the fuselage body is detected by the distance sensor in the surface cleaning device, and the distance sensor can be an infrared distance sensor or an ultrasonic distance sensor or a laser distance sensor; we can also adjust the output power of the dirt suction motor or the ventilation volume per unit area in the dirt storage bucket during the dirt suction stage, and can also adjust the speed of the roller brush synchronously to assist the surface cleaning device to increase or reduce the suction force for dirty liquid or dirt; or, in the cleaning step, the liquid supply device and the drive motor can be turned on at the same time. Such solutions that do not deviate from the intention of the present invention are all within the protection scope of the present invention, and no examples are given here one by one.

[0052] Of course, it is understandable that we can also set up a power source system with an independent shell, set the sewage suction motor and battery pack in the shell of the power source system, and the power source system can be detachably installed on the fuselage. The fuselage has suction and exhaust structures corresponding to the power source system. The independent power source system is installed on the fuselage, and is combined with the fuselage and the floor brush to form a wet surface cleaning device; the independent power source system can be removed and installed on a dust cup with a suction port to form a vacuum cleaner for removing dust; the independent power source system can also be installed on a fabric cleaning head to form a fabric cleaning device for cleaning the surface of fabric sofas and bedding. Stains; Of course, we can also set the sewage suction pipe outside the sewage bucket, or set the sewage suction pipe close to the side wall of the sewage bucket, or weld the sewage suction pipe to the side wall of the sewage bucket, and set a through hole for the sewage suction pipe to pass through on the side wall of the sewage bucket, the pipe mouth of the sewage suction pipe passes through the through hole and extends into the sewage bucket, and the vent can still be set on the cover; or, a first through hole is set on the body, and the sewage suction pipe extends upward and bends downward as a sewage suction channel, the pipe mouth of the sewage suction pipe, that is, the mouth of the sewage suction channel, passes through the first through hole and is set downward, and a second through hole is set on the bucket cover of the sewage bucket, and the pipe mouth of the sewage suction pipe passes through the first through hole and extends downward into the sewage bucket. Alternatively, the control method can also be applied to such a structure: for example, the body also has a second working position lying flat on the surface to be cleaned and a first working position not lying flat; or the body includes a first body and a second body hinged thereto, the second body is hinged to the floor brush, and the second body can have a second working position lying flat on the surface to be cleaned and a first working position not lying flat, the clean water tank and the sewage suction motor are arranged on the first body, and the sewage bucket is arranged on the second body; such solutions that do not deviate from the intention of the present invention are all within the protection scope of the present invention, and examples will not be given one by one here.

[0053] Embodiment 2:

[0054] The difference between the cleaning device of this embodiment and the first embodiment is that the cleaning device is provided with a detection structure for the working state of the body. When the cleaning device is working, it can determine whether it encounters heavy dirt according to the working state of the body, thereby starting the heavy dirt processing function for cleaning.

[0055] In this embodiment, the rear rotating part is also a rear wheel. A sensor is provided on the fuselage 1. The control unit is provided with a threshold value of the movement of the fuselage 1 or the floor brush 2 in a unit time corresponding to the heavy dirt treatment signal. The sensor feeds back the threshold value of the movement of the fuselage 1 or the floor brush 2 in a unit time to the control unit, and the control unit issues a command to start the heavy dirt treatment function. In this embodiment, a position sensor is provided on the fuselage 1. The state of movement of the fuselage is detected by the position sensor in the surface cleaning device. The position sensor includes a sensing member and a triggering member. The sensing member (not shown in the figure) is provided on the floor brush. The triggering member (not shown in the figure) is provided on the fuselage. During the rotation of the fuselage relative to the floor brush, the sensing member and the triggering member can switch between the states of approaching and separating from each other. The sensing member is a micro switch or a metal shrapnel. We set two or three metal shrapnel near the hinge in the housing of the floor brush, and set a triggering member on the hinge shaft connected to the fuselage. The triggering member is also a metal shrapnel. The metal shrapnel is electrically connected to the active air chip. When a micro switch is used as a sensing element, the trigger element is a protrusion on a hinge shaft (not shown in the figure) provided on the first body 11, and a shaft hole (not shown in the figure) is provided in the floor brush. The hinge shaft cooperates with the shaft hole so that the first body can rotate relative to the floor brush. The micro switch is provided in the floor brush and close to the shaft hole. When the first body rotates, the protrusion on the hinge shaft triggers the micro switch, sends a signal of the position of the first body, and transmits the signal to the main control chip. In this embodiment, the control unit includes a main control chip, and the main control chip in the control unit has a value of the number of times the body moves back and forth in a unit time corresponding to the heavy dirt signal. The sensor feeds back the number of times the body repeatedly moves back and forth in a unit time as n to the control unit, and then the heavy dirt treatment function is started, where n ≥ 3 times.

[0056] The process of the cleaning method of the surface cleaning device is as follows:

[0057] 1) Power-on steps: The customer rotates the machine body to a certain angle, that is, a more comfortable angle when holding the handle bar, activates the power-on button on the grip of the handle bar 7, turns on the surface cleaning device, and selects the standard cleaning mode button.

[0058] 2) Enter the cleaning step: At this time, the main control chip controls to start the liquid supply device first, and the water pump sprays the cleaning liquid in the clean water tank to the surface to be cleaned or the roller brush through the water nozzle at a first flow value Q1 until the first preset time T1 is reached; at the same time, the drive motor is turned on, and the drive motor drives the roller brush to move at a first rotation speed V1. The standard movement speed of the roller brush is Ve, where V1≤Ve, and the brush body on the roller brush contacts the surface to be cleaned. Figure 4 and Figure 5In the cleaning step, there is also a dirt suction stage: the dirt suction motor is started at the same time, the driving motor drives the roller brush to rotate at a second speed V2, and the main control chip controls the vacuum motor to work, sucking the dirt on the surface to be cleaned or the roller brush itself into the dirt suction channel, and transmitting it to the dirt storage bucket through the dirt suction channel, wherein V2≥Ve.

[0059] 3) Start the heavy dirt treatment step: When encountering heavy dirt, in order to clean the heavy dirt in a certain area, the customer will drag the machine body back and forth, and the sensor detects the reciprocating movement of the machine body. In this embodiment, the sensor detects that the actual working number of the machine body moving back and forth is 3 times, and then the signal is fed back to the main control chip. The main control chip compares it with its internal standard threshold, that is, the number of machine body movements 3. After comparison, the actual working number is equal to the standard threshold, and the main control chip issues a command to start the heavy dirt treatment function, then the machine body stops moving, the liquid supply device stops working, the pressurizing device starts, and the rear part of the floor brush is lifted. Figure 6 and Figure 7 As shown, according to the lever principle, the front of the floor brush moves downward, and the roller brush moves downward with the front of the floor brush, and the liquid supply device is turned on again. At this time, the roller brush moves at the first speed V1, and the pressure at the part where the roller brush contacts the surface to be cleaned increases, so that the contact area between some bristles of the roller brush and the surface to be cleaned increases, and the bristles of the roller brush contact the surface to be cleaned more closely, so that the friction between some bristles of the roller brush and the surface to be cleaned increases. At the same time, the dirt suction motor is started, and the driving motor drives the roller brush to rotate at the second speed V2, and V2≥Ve, and most of the dirt and dirty liquid on the surface to be cleaned and the dirt or dirty liquid scraped off the roller brush by the scraping member are sucked into the dirt storage bucket through the dirt suction port by the dirt suction motor. Where V1<Ve ， Although the rotation speed of the roller brush slows down, the duration of contact between the roller brush and the surface to be cleaned per unit area is prolonged, and only part of the bristles of the roller brush are in conflict with the surface to be cleaned during the rotation of the roller brush, which does not increase the running resistance of the drive motor much. Therefore, the loss of the drive motor is not much, but the friction between the bristles of the roller brush and the surface to be cleaned is increased, which not only makes the heavy dirt constantly wiped hard, so that the place is cleaned quickly, but also ensures the normal operation and good running performance of the drive motor. This method of cleaning heavy dirt further increases the conflict between part of the bristles of the roller brush and the surface to be cleaned, thereby further increasing the friction between part of the bristles on the roller brush and the surface to be cleaned, so that the cleaning efficiency is more efficient and the cleaning effect is better.

[0060] 4) After the heavy dirt is processed, when the sensor detects that the machine body resumes normal forward movement, it will feedback to the main control chip, and the main control chip will issue a command to control the pressurizing device to stop working. At the same time, the main control chip will issue a command to continue to start the standard cleaning mode, and the surface cleaning equipment will continue to clean normally.

[0061] 5) Shutdown step: In response to the instruction of the main control chip, the liquid supply device stops working, then the roller brush stops rotating, and the sewage suction motor continues to work for the second preset time T2 and then stops, thereby sucking the dirty liquid or dirt from the sewage suction port and the sewage suction channel into the sewage tank, and the cleaning work is completed.

[0062] Such a control method makes the surface cleaning device more flexible and intelligent, and can perform cleaning processes in different modes for different environments without customer operation, and can ensure the normal operation and good working performance of the drive motor, and has high cleaning efficiency and good cleaning effect.

[0063] Of course, it is understandable that we can also set the rear rotating part to a single roller brush, which includes a roller and a cleaning part arranged on the roller; or, we can also set a motor in the floor brush to control the rotation of the rear rotating part. When dealing with heavy dirt, we let the rear rotating part, i.e., the rear wheel or roller brush, arranged on the rear side of the floor brush rotate backward at a certain speed, and the roller brush arranged on the front side of the floor brush rotates forward at a speed higher than the rated speed driven by the driving motor, thereby ensuring that the floor brush can move forward slowly in the dirty area, thereby further increasing the friction between the roller brush and the surface to be cleaned, so as to further improve the cleaning efficiency and improve the cleaning effect.

[0064] Of course, it is understandable that we can also adopt the following scheme to detect and feedback the working status of the fuselage: the time value of the fuselage moving forward and backward in unit time corresponding to the heavy dirt signal is written in the main control chip of the control unit, and the sensor feeds back the duration t of the repeated forward and backward movement of the fuselage in unit time to the control unit, then the heavy dirt processing function is started, where t≥5s; such schemes that do not deviate from the intention of the present invention are all within the protection scope of the present invention, and no examples are given here one by one.

[0065] Of course, it is understandable that during the operation of the surface cleaning device, the target ventilation volume of the vent can also be detected by the gravity sensor; the surface cleaning device of this embodiment can also use the cleaning method of embodiment one to clean the surface to be cleaned, and the surface cleaning device of embodiment one can also use the cleaning method of this embodiment to clean the surface to be cleaned; the handshake on the handlebar of the surface cleaning device can also be set in advance; or, the sensor can also detect the inclination angle of the fuselage, and the fuselage can be completely flush with the surface to be cleaned, that is, the inclination angle of the fuselage relative to the surface to be cleaned is 0°, at this time, the actual output power of the dirt suction motor can be adjusted to be smaller; or, the position and size of the auxiliary wheels can be further set, so as to facilitate the surface cleaning device The fuselage provides assistance when the body is in a lying working position. Such solutions that do not deviate from the intention of the present invention are all within the protection scope of the present invention, and examples are no longer given here.

[0066] The remaining structures and steps and their beneficial effects not mentioned in this embodiment are also consistent with those in the first embodiment and will not be described in detail here.

[0067] Embodiment 3

[0068] The difference between this embodiment and the first embodiment is that: the floor brush 2 is further provided with a vibration motor 10, and the rear rotating member is two rear wheels arranged at the rear of the floor brush. Figure 8 and Fig. 9 As shown, the floor brush 2 includes an upper shell 27 and a lower shell 28, the vibration motor 10 is arranged in the accommodation space formed by the upper shell 27 and the lower shell 28, one side of the upper shell 27 and the lower shell 28 is provided with an extension arm 29 protruding forward, and the extension arm 29 is provided with a connector 26, the drive motor 9 is arranged in the accommodation space and is located on the side where the connector 26 is located, one end of the roller brush 2 is connected to the connector 26, and the other end is installed on the other side of the floor brush 2 through a side plate, the drive motor 9 is connected to the connector 26 through a transmission mechanism, and the vibration motor 10 is arranged in the accommodation space on the opposite side of the connector 26. In order to avoid the discomfort caused by the vibration of the motor driving the synchronous vibration of the body when the human body holds the handle rod when the vibration motor is working, we can set a vibration isolation structure or a shock-absorbing pad at the connection between the body and the floor brush to avoid vibration of the body.

[0069] When the surface cleaning device encounters heavy dirt and activates the heavy dirt processing function during the cleaning process, or when the customer directly activates the heavy dirt processing function after seeing the heavy dirt, the control unit obtains the relevant signal and feeds the signal back to the control unit, the body 1 stops moving, the rear wheel 5 is lifted, the roller brush 2 is disconnected from the drive motor 9, and the vibration motor 10 is connected to the roller brush 2 and drives the roller brush 2 to vibrate, continuously beating the surface to be cleaned, and the operation time is T1 seconds. This cleaning method weakens the adhesion between the dirt and the surface to be cleaned, especially the adhesion between the dried stains and the surface to be cleaned, and at the same time greatly increases the contact force and contact frequency between the roller brush and the dirty part of the surface to be cleaned, thereby increasing the friction between the bristles on the tube brush and the surface to be cleaned, which is more targeted, further improving the cleaning effect of the surface cleaning device, and improving the cleaning efficiency, thereby greatly improving the cleaning effectiveness.

[0070] Of course, it is understandable that we can also add a dirt detection pretreatment step before the cleaning step, and the output power of the dirt suction motor can be adjusted during the dirt detection pretreatment step. This ensures that no matter what state the first body is in, it can handle a lot of dirt, especially the dirt suction treatment under abnormal conditions of a lot of sewage accumulation. After the accumulated dirt is processed, the surface to be cleaned is cleaned, avoiding the secondary contamination of the surface to be cleaned by a lot of sewage or dirt in a certain place during the cleaning process, which makes the overall surface to be cleaned more difficult to clean and increases the workload of customers. This cleaning method not only reduces the workload of customers, but also can flexibly respond to surface cleaning problems in different spaces. Under different conditions of the space of the surface to be cleaned in the room, the cleaning work is carried out normally, and the dirt suction motor works safely and reliably, which greatly improves the cleaning efficiency and improves the cleaning effect, and the customer experience is better.

[0071] The structure of the cleaning device not mentioned in this embodiment and the remaining steps of the cleaning method and the beneficial effects produced therefrom are also consistent with those in Embodiment 1 or Embodiment 2, and will not be described in detail here.

[0072] Embodiment 4

[0073] The difference between this embodiment and the third embodiment is that the driving motor and the vibration motor operate alternately.

[0074] In this embodiment, when the heavy dirt treatment function is started, the control unit obtains the relevant signal and feeds the signal back to the control unit, the body 1 stops moving, the rear wheel 5 is lifted, the roller brush 2 is disconnected from the drive motor 9, the vibration motor 10 is connected to the roller brush 2 and drives the roller brush 2 to vibrate, continuously tapping the surface to be cleaned, and the operation time is T1 seconds. Then the drive motor 9 is started, driving the roller brush 2 to rotate, and the rotation time is T2 seconds. The number of times the vibration motor 10 and the drive motor 9 operate alternately is N, where T1≥T2, N≥1. The vibration motor 10 drives the roller brush 2 to vibrate, so that the roller brush 2 and the bristles thereon continuously beat the surface to be cleaned, which weakens the adhesion between the dirt and the surface to be cleaned, especially the adhesion between the dried stains and the surface to be cleaned, and then starts the drive motor 9, which drives the roller brush 2 to move, and the resistance between the roller brush 2 and the surface to be cleaned increases. The bristles of the roller brush 2 are flattened and have an interference fit with the surface to be cleaned, and the wiping force is increased. The two operate alternately, which reduces the running time of the drive motor 9 when it is subject to movement resistance, and does not cause the problem of large heat loss due to the obstruction of the operation of the drive motor 9. This has a better cleaning effect, improves the cleaning efficiency, and ensures the working life of the drive motor 9. At the same time, it increases the cleaning force and better improves the cleaning effect. Such a control method makes the surface cleaning equipment reliable, excellent in performance, and good in cleaning effect. The work is humanized, convenient and flexible, and the customer experience is better.

[0075] Of course, it is understandable that this heavy dirt treatment method can be provided in the cleaning method of the surface cleaning device, or such a cleaning function can be provided separately. Such solutions that do not deviate from the intention of the present invention are within the protection scope of the present invention, and are not listed one by one here.

[0076] It is easy for those skilled in the art to understand that the protection scope of the present application is not limited to these specific embodiments. Without departing from the technical principles of the present application, those skilled in the art can split and combine the technical solutions in the above-mentioned various embodiments, and can also make equivalent changes or replacements to the relevant technical features. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present application will fall within the protection scope of the present application.

Claims

1. A control method for a household cleaning device, the household cleaning device comprising a roller brush rotatably disposed in front of a floor brush; A driving motor for controlling the rotation of the roller brush; A body articulated with a floor brush; and a control unit disposed on the fuselage; A rear rotating member, rotatably disposed at the rear of the floor brush; The floor brush is supported on the surface to be cleaned by a roller brush and a rear rotating part, and is characterized in that the control method includes: the control unit obtains a heavy dirt processing signal, and adjusts the resistance force between the roller brush and the surface to be cleaned according to the heavy dirt processing signal, so that the bristles on the roller brush perform pressurized friction cleaning on the dirty surface to be cleaned.

2. The control method of the household cleaning device according to claim 1, characterized in that: The resistance force between the roller brush and the surface to be cleaned is adjusted according to the heavy dirt processing signal, including adjusting the resistance force between the roller brush and the surface to be cleaned by a pressure device after stopping the movement of the machine body or the rear rotating member or the roller brush.

3. The control method of the household cleaning device according to claim 1, characterized in that: It also includes an operating unit, and the control unit obtains a heavy dirt processing signal sent by the operating unit.

4. The control method of the household cleaning device according to claim 1, characterized in that: A sensor is provided on the body, and a standard threshold value of the movement of the body or the floor brush within a unit time corresponding to the heavy dirt treatment signal is provided in the control unit. The sensor feeds back the working threshold value of the movement of the body or the floor brush within a unit time to the control unit, and the control unit compares the working threshold value with the standard threshold value. If the working threshold value is greater than or equal to the standard threshold value, an instruction is issued to start the heavy dirt treatment signal.

5. The control method of the household cleaning device according to claim 2, characterized in that: The heavy dirt processing signal is started, the machine body stops moving, the pressure device is started, the rear part of the floor brush is lifted, and the roller brush moves downward following the front end of the floor brush, and the roller brush moves at a first rotation speed V1, so that part of the bristles of the roller brush are squeezed and interference fit with the surface to be cleaned, and the friction with the surface to be cleaned is increased, wherein the standard movement speed of the roller brush is Ve, V1≥Ve.

6. The control method of the household cleaning device according to claim 2, characterized in that: The heavy dirt processing signal is started, the machine body stops moving, the pressure device is started, and the floor brush moves downward as a whole, so that the roller brush moves downward with the floor brush, and the roller brush moves at a second speed V2, and the bristles on the roller brush are squeezed and interference fit with the surface to be cleaned, and the friction with the surface to be cleaned increases, wherein the standard movement speed of the roller brush is Ve, V2≤Ve.

7. The control method of the household cleaning device according to claim 6, characterized in that: The pressurizing device includes a floating mechanism arranged between the floor brush and the rear rotating member. When the floating mechanism is activated, the rear rotating member rises, and the floor brush drives the roller brush to move downward as a whole relative to the rear rotating member, so that the bristles of the roller brush are flattened and have an interference fit with the surface to be cleaned; Alternatively, the pressurizing device includes a floating mechanism connected to the roller brush and arranged on the floor brush. When the floating mechanism is activated, the roller brush is driven to move downward, so that the bristles of the roller brush are flattened and have an interference fit with the surface to be cleaned. Alternatively, the pressurizing device includes an electromagnetic device arranged on the floor brush and a magnetizer correspondingly arranged in the roller brush. The electromagnetic device has opposite magnetic properties to the magnetizer. The heavy dirt handling function is activated, the body and the rear rotating part stop rotating, and the electromagnetic device is turned on. The magnetizer is repelled so that the floor brush drives the roller brush to move downward, so that the bristles of the roller brush are flattened and interference fit with the surface to be cleaned.

8. The control method of a household cleaning device according to any one of claims 1 to 7, characterized in that: It also includes a rear rotating part driving motor. When a heavy dirt processing signal is started, the body stops moving, the roller brush moves at a second speed V2, and the rear rotating part driving motor drives the rear rotating part to rotate at a third speed V3. The direction of rotation of the rear rotating part is opposite to that of the roller brush, and V3≤V2.

9. The control method of a household cleaning device according to claim 1, characterized in that: The floor brush is also provided with a vibration motor. When a heavy dirt processing signal is activated, the body stops moving, the rear rotating part is lifted, the roller brush is disconnected from the drive motor, and the vibration motor is connected to the roller brush to drive the roller brush to vibrate and continuously beat the surface to be cleaned. The running time is T1 second.

10. The control method of the household cleaning device according to claim 9, characterized in that: The vibration motor stops moving, and the drive motor starts, driving the roller brush to rotate. The rotation time is T2 seconds. The number of times the vibration motor and the drive motor run alternately is N, where T1≥T2 and N≥1.

Images