Entanglement self-cleaning method of surface cleaning system

Abstract

The invention discloses an entanglement self-cleaning method of a surface cleaning system.The surface cleaning system comprises a surface cleaning device and a base, the surface cleaning device comprises a cleaning part, a scraping part, a water supply assembly and a dirt suction assembly, and the surface cleaning device is matched with the base to clean entanglements. The cleaning part and the scraping part have a first state of abutting against each other and a second state of being separated from each other, and the method comprises the steps that entanglement gathering is conducted, specifically, the first state and the second state are switched at least once, and the cleaning part rotates forwards and backwards at least once in the first state; and a roller brush cavity cleaning step: controlling the cleaning piece to be in a second state, and enabling the cleaning piece to rotate forwards or reversely so as to drive the entanglement to move in the roller brush cavity to wipe the roller brush cavity. According to the roller brush, entanglements can be rubbed and gathered into strips or balls, and then the entanglements are driven to wipe and clean dirt attached to the cavity wall of the roller brush.

Description

Technical Field

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

[0002] As people's living standards continue to improve, surface cleaning equipment for home use is becoming increasingly popular. Vacuum cleaners, floor scrubbers, and robots are increasingly being used to assist in cleaning. In home cleaning, hair and other debris on the surface can easily get tangled in the roller brushes or rotating shafts, causing the equipment to malfunction.

[0003] To address the aforementioned issues, prior art in Chinese patent application number CN201710386424.X proposes a roller brush cleaning structure for vacuum cleaners. When it is necessary to clean the tangled material wrapped around the roller brush surface, a pushing device drives the roller brush assembly to approach and abut against the scraper assembly, so that the tangled material is cut off by the cutting component on the scraper. However, this solution is only applicable to dry vacuum cleaners. For wet floor scrubbers, since the roller brush is mainly formed by relatively dense absorbent fibers, the tangled material is difficult to cut off by the aforementioned cutting component, and may even cause the absorbent fibers to be cut off, affecting the lifespan of the roller brush.

[0004] In patent application CN202311161331.9, the inventors proposed a comb-tooth structure in which the front teeth extend downwards from the outer side of the top of the suction port to at least partially cover it. While scraping away dirt, the surface cleaning device operates a suction fan, reducing the effective area of ​​the suction port and increasing the air pressure at the partially covered area. This allows most of the dirt, debris, and tangled hair sucked from the surface to be cleaned to easily enter the suction port. However, this solution prevents tangling during cleaning and is essentially a "prevention" of tangled material, as once tangled material is wrapped around the roller brush surface, it is difficult to remove. Furthermore, relatively short and fluffy tangled materials, such as pet hair, can easily get stuck on the comb teeth, increasing the difficulty of cleaning for the user. Summary of the Invention

[0005] To at least partially address the shortcomings and deficiencies of the prior art, the present invention provides a self-cleaning method for entangled materials in a surface cleaning system. The surface cleaning system includes a surface cleaning device and a base. The surface cleaning device includes a cleaning component, a scraping component, a water supply component, and a suction component. The surface cleaning device cooperates with the base to clean entangled materials. The cleaning component and the scraping component have a first state of mutual contact and a second state of mutual separation. The method includes:

[0006] The entanglement accumulation step involves switching between the first state and the second state at least once, and in the first state, the cleaning component is rotated forward and backward at least once.

[0007] Cleaning steps for the roller brush cavity: Control the cleaning component to be in the second state, and rotate the cleaning component forward or backward to drive the wrapped material to move and wipe the roller brush cavity.

[0008] Furthermore, the step of gathering the entangled material includes:

[0009] First sub-step: The cleaning component is in the first state, and the cleaning component cycles forward and reverse at least once;

[0010] Second sub-step: The cleaning part is in the second state, and the cleaning part cycles forward and reverse at least once.

[0011] Furthermore, in the first sub-step and / or the second sub-step, the fan and the cleaning component operate simultaneously.

[0012] Furthermore, in the first and / or second sub-step, liquid is supplied for a preset time before the cleaning component operates.

[0013] Furthermore, in the entanglement aggregation step, prior to the first sub-step, the cleaning component is controlled to be in a second state and liquid is supplied.

[0014] Furthermore, the cleaning step of the roller brush cavity also includes: switching between the first state and the second state at least once, with the rotation direction of the cleaning component before the switch being opposite to the rotation direction of the cleaning component after the switch.

[0015] Furthermore, in the roller brush chamber cleaning step, when the cleaning component is in the second state, the cleaning component rotates forward and reverse at least once each.

[0016] Furthermore, in the roller brush cavity cleaning step:

[0017] S300 step: Control the cleaning component to be in the first state, and the cleaning component rotates forward;

[0018] S400 step: Control the cleaning component to the second state, and reverse the cleaning component;

[0019] The above steps S300 and S400 are repeated a preset number of times;

[0020] S500 step: Control the cleaning component to be in the second state, and the cleaning component rotates forward;

[0021] S600 step: Control the cleaning component to the first state, and reverse the cleaning component;

[0022] The above steps S500 and S600 are repeated a preset number of times.

[0023] Furthermore, after the roller brush chamber cleaning step, the process further includes:

[0024] Waste collection steps: Control the cleaning device to the first state, turn on the fan, and alternate the forward and reverse rotation of the roller brush at least once, with the forward rotation time being longer than the reverse rotation time.

[0025] Furthermore, in the waste collection step, liquid is supplied for a preset time before the fan is turned on.

[0026] The beneficial effects of this technical solution include: In this embodiment, during the entanglement gathering step, the cleaning component switches between a first state and a second state at least once. In the first state, the cleaning component rotates in both directions, enabling it to rub the hair stuck between the scraper and the cleaning component or in the gaps between the comb teeth. By utilizing the contact between the cleaning component and the wiping component, the working principle of "twisting hemp rope" is simulated, and these lightweight and loose dirt are rubbed and gathered into strips or clumps, making the entanglement easier to clean. In the roller brush cavity cleaning step, the second state rotates in either the forward or reverse direction, increasing the distance between the cleaning component and the roller brush cavity and the wiping component. The cleaning component drives the strips or clumps of entanglement to rotate within the roller brush cavity. Since the strips or clumps of entanglement have great flexibility, the clumps of entanglement are embedded between the cleaning component and the roller brush cavity wall, and the entanglement is used to wipe and clean the dirt adhering to the roller brush cavity wall. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the surface cleaning system;

[0028] Figure 2 A schematic diagram of a self-cleaning method for entangled materials in a surface cleaning system;

[0029] Figure 3 A schematic diagram of the internal structure of a floor brush in one possible implementation of a surface cleaning device;

[0030] Figure 4 This is a schematic diagram of the water distribution plate structure in a surface cleaning device.

[0031] Figure 5 An exploded view of the water distribution plate in a surface cleaning device;

[0032] Figure 6 This is a schematic diagram of the cross-sectional structure of the water distribution plate;

[0033] Figure 7 For the appendix Figure 3 A schematic diagram of a partial cross-sectional structure along the AA direction;

[0034] Figure 8 For the appendix Figure 3 A schematic diagram of another state of the local cross-sectional structure in the AA direction;

[0035] Figure 9 For the appendix Figure 3 A schematic diagram of a partial cross-sectional structure in the BB direction;

[0036] Figure 10 A schematic diagram of the internal structure of the floor brush in a preferred embodiment of the surface cleaning device;

[0037] Figure 11 for Figure 10 A magnified view of a section in part D;

[0038] Figure 12 A partial cross-sectional structural diagram of a preferred embodiment of the surface cleaning device;

[0039] Figure 13 This is a partial cross-sectional structural diagram of the surface cleaning device when it is docked with the base and the cleaning component is in the first state.

[0040] Figure 14 This is a partial cross-sectional structural diagram of the surface cleaning device when it is docked with the base and the cleaning component is in the second state.

[0041] Figure 15 This is a schematic diagram of the self-cleaning method for entangled materials in the surface cleaning system of Example 1;

[0042] Figure 16 This is a schematic diagram of the self-cleaning method for entangled materials in the surface cleaning system of Example 2. Detailed Implementation

[0043] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance, let alone relative sequence or priority.

[0044] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] It should be noted that the surface cleaning device in the embodiments of the present invention can be a dry vacuum cleaner or a floor washing / mopping device that can handle both dry and wet cleaning. Specifically, the surface cleaning device can be a handheld cleaning machine with a handle and manually operated by the user, such as a handheld floor scrubber, handheld floor mop, or handheld vacuum cleaner; it can also be a cleaning robot with drive wheels, which can control the drive wheels to move according to its stored program and control the cleaning rollers to clean the floor. The present invention will be further described below with reference to the accompanying drawings and specific embodiments, using a handheld surface cleaning device as an example.

[0046] As a surface cleaning device of the present invention, combined with the attached Figures 1 to 16As shown, the device includes a body 10 and a floor brush 20, which are hinged together. The floor brush 20 includes a floor brush housing 210 and is equipped with a drive assembly, a roller brush cavity, a cleaning component 202, a scraping component 203, and a roller brush cover 204. The drive assembly includes a drive motor 201. The cleaning component 202 and the scraping component 203 are disposed in the roller brush cavity. The drive motor 201 is rotatably connected to the cleaning component 202 to rub the dirt on the surface to be cleaned. The cleaning component 202 and the scraping component 203 are in a first state of mutual contact. A preset interference amount is formed between the cleaning component 202 and the scraping component 203. For example, this first state is present at least when cleaning the surface to be cleaned, so that the dirt carried by the cleaning component can be scraped off by the scraping component. Specifically, the wiping element 203 can be a scraper, a comb, or a combination thereof, and can be made of metal, plastic, or rubber. Preferably, the wiping element 203 is formed by combining a scraper 2032 and a comb 2031. The surface cleaning device further includes a water supply component and a suction component. The water supply component includes a clean water tank, a water pump 205, and a water distribution plate 206. The clean water tank, water pump 205, and water distribution plate 206 are connected in sequence through pipelines to supply the cleaning liquid in the clean water tank to the cleaning components through multiple outlets on the water distribution plate 206. The outlets are arranged along the axial direction of the cleaning rollers, and the comb teeth are located below the outlets, so that dirt in the gaps between the comb teeth can be flushed during the self-cleaning process. The suction component includes a suction port 207, a wastewater tank, and a suction fan. The suction port 207, the wastewater tank, and the suction fan are connected in sequence through pipelines. The suction port 207 is connected to the roller brush cavity to suck away dirt on the surface to be cleaned, the cleaning components, or dirt scraped off by the scraping components and store it in the wastewater tank. The body 10 is also equipped with a battery assembly and a control board. The control board is electrically connected to the drive motor, the suction fan, and the battery assembly to control the battery assembly to supply power to the drive motor and the suction fan and to control them to start, stop, and perform other actions.

[0047] In this embodiment, the cleaning component 202 and the scraping component 203 also have a second state of separation from each other. In one possible implementation, the cleaning component 202 is fixedly mounted on the floor brush, and the scraping component 203 is movably mounted on the floor brush. The scraping component 203 can move relative to the cleaning component to control the distance between the scraping component 203 and the cleaning component. In another possible implementation, both the cleaning component and the scraping component are movably mounted on the floor brush, and the cleaning component and the scraping component 203 can move relative to each other simultaneously to adjust the distance between the scraping component and the cleaning component. In a preferred implementation, the scraping component 203 is fixedly mounted on the floor brush, and the cleaning component is movably mounted on the floor brush. The cleaning component can move relative to the scraping component to control the distance between the scraping component and the cleaning component.

[0048] The two movement methods described above are explained below.

[0049] In one possible implementation described above, combined with Figures 3 to 9As shown, the water-distributing plate and the wiping component are connected to form an integrated assembly structure. During the first state switch, the water-distributing plate 206 and the wiping component 203 move together. The floor brush housing 210 is provided with an movable groove with an opening facing the roller brush direction, and the integrated assembly structure is installed in the movable groove. Specifically, the water-distributing plate 206 includes a main housing 2061, a middle plate 2062, and a top cover 2063. The main housing 2061 is provided with a water outlet, and the top surface of the main housing 2061 is provided with a concave portion. The middle plate 2062 and the top cover 2063 are successively embedded in the concave portion. A second flow channel communicating with the water supply port is formed between the lower surfaces of the main housing 2061 and the middle plate 2062. A first flow channel communicating with the second flow channel is formed between the upper surface of the middle plate 2062 and the top cover 2063. The first flow channel is located above the second flow channel, and the cleaning liquid is evenly distributed through the first flow channel and the second flow channel. The top surface of the comb-tooth component 2031 is provided with a screw post 20311, which passes through the scraper 2032, the main housing 2061, the middle plate 2062, and the top cover 2063 sequentially from top to bottom, and is finally fixed by a fastening screw 2064, thereby connecting the water distribution plate 205 and the wiping component 203 to form an integrated assembly structure. The middle plate 2062 is provided with a water inlet 20621, which is connected to the first flow channel. Water enters from the water inlet 20621 in a horizontal direction, so that the water inlet direction of the water inlet 20621 is perpendicular to the arrangement direction of the first and second flow channels. The integrated component structure also includes a sealing element 2065, which is annularly arranged around the outer periphery of the main housing 2061 and the comb tooth 2031 and contacts the peripheral wall of the movable groove. The sealing element of the corresponding part of the main housing 2061 is closer to the roller brush surface than the sealing element of the corresponding part of the comb tooth 2031, so that the sealing element 2031 is inclined and approximately tangent to the roller brush. The main housing 2061 is also provided with a transmission wall 20611 and a limiting post 20612, which are formed by extending rearward from the rear wall surface of the main housing 2061. That is, the extension direction of the transmission wall 20611 and the limiting post 20612 is parallel to the extension direction of the water inlet or the water inlet direction. The bottom of the movable groove is provided with an opening structure for the transmission wall 20611 to extend out, and an elastic member such as a spring is provided between the limiting post 20612 and the movable groove. The floor brush housing 210 also has a driver 208. The output end of the driver 208 is connected to the transmission wall 20611 through a transmission component 209 to make the integrated component structure move in the front and back direction, thereby realizing the switching control between the cleaning component and the scraping component between the first state and the second state.The transmission assembly 209 includes a threaded post 2091 and a threaded fitting 2092. One end of the threaded post 2091 is fixedly connected to the output end of the driver 208. The outer surface of the threaded post 2091 is provided with a transmission thread. The threaded fitting 2092 includes a first end with an internal thread and a second end with a limiting protrusion 20921. The limiting protrusion 20921 of the second end extends into a hole or groove 206111 on the transmission wall 20611 to achieve a transmission connection.

[0050] In this embodiment, after the integrated component structure moves backward into position and contacts the bottom of the movable groove, the wiping element remains at least partially outside the movable groove and extends into the roller brush cavity. This allows the wiping element, although separated from the roller brush, to still scrape and block large clumps of dirt within the roller brush cavity. The driver 208 is preferably a motor. The output end of the driver rotates, transmitting power to the threaded post, threaded fitting, and limiting post 2062, thereby moving the integrated component structure. The extending direction of the limiting post is the same as the extending direction of the water inlet connector. There are two drivers, asymmetrically arranged about the central axis of the floor brush and located on both sides of the suction port.

[0051] In a preferred embodiment, combined with Figures 10 to 12As shown, the cleaning component 202 includes a side plate 2021 and a roller 2022, which are pivotally connected. The floor brush housing 210 includes an upper shell 210a, a lower shell 210b, and a cover 210c. The 210b is provided with a mounting groove 2101, a first groove 2102, and a second groove 2103 for placing the driver 208. The first groove and the second groove are respectively disposed on two opposite side walls of the floor brush housing. The first groove 2102 is formed by at least a partial inward recess of one side wall of the floor brush housing, and the second groove 2103 is formed by at least a partial inward recess of the other side wall of the floor brush housing. The cover 210 is mounted on the lower shell 210b, and the bottom wall of the first groove is at least partially inward recessed to form a sliding groove 2104. The drive assembly also includes a driver 208, a bracket 2011, an end cap 2012, and a transmission assembly 209'. The drive motor 201 is mounted on the bracket 201, and the bracket 201 is pivotally connected to the end cap 2012. During installation in the cleaning room, the user holds the side plate 2021 and inserts it from the first groove 2102 side of the floor brush housing to the second groove 2103 side. After installation, the side plate 2021 is embedded in the first groove 2102 and flush with the side wall of the floor brush housing. The output end of the drive motor is connected to the roller 2022. The side plate 2021 and the end cap 2102 are respectively connected to the output end of the driver 208 via the transmission assembly 209'. The side plate 2021 and the end cap 2102 drive the cleaning component to move back and forth a distance S, thereby switching the control between the first and second states relative to the scraping component. The transmission assembly 209' includes a threaded post 2091', a threaded fitting 2092', and a slider 2093'. The outer surface of the threaded post 2091' is provided with a transmission thread. The threaded fitting 2092' includes a first part with an internal thread and a second part formed on the peripheral wall of the first part. The second part extends along the axial direction of the thread to form a platform surface 20922'. The platform surface 20922' is provided with a limiting screw post 20921' that extends radially outward along the internal thread. The threaded fitting 2092' is fixedly connected to the slider 2093' through the limiting screw post 20921'. Specifically, the bottom of the first groove 2102 of the cover is also provided with a sliding groove 2104. At least a part of the slider 2093' is disposed in the sliding groove 2104. The limiting screw post 20921' extends from the inside of the floor brush housing through the first wall 2105 on the floor brush housing and into the sliding groove 2104. Then, at least a part of it extends into the groove inside the slider 2093' and is fixedly connected to the limiting screw post 20921' from the outside of the slider 2093' through a fastener.The outer side of the slider 2093' is provided with a limiting groove surrounding the fixing member, and the inner side wall of the side plate 2021 is provided with a limiting rib 20211 corresponding to the limiting groove. The limiting rib and the limiting groove can be a closed ring or a partially open approximately ring structure. After the roller brush is installed, the limiting rib 20211 extends into the limiting groove on the slider 2093' to achieve detachable installation.

[0052] Furthermore, the outer wall of the slider 2093' within the circumferential area of ​​the limiting rib 20211 is lower than the area outside the circumferential area of ​​the limiting rib 20211. Preferably, the limiting rib 20211 is partially disconnected, and the partially disconnected position is connected to the space between the wall and the side plate 2021, avoiding the problem of being unable to disassemble the side plate 2021 due to the negative pressure suction of this space.

[0053] Furthermore, the slider 2093' is provided with a first groove 20931 on its periphery, and the side wall of the sliding groove 2104 is provided with a second groove 21041 corresponding to the first groove 20931. A steel ball is provided between the first groove 20931 and the second groove 21041 to reduce the resistance when the slider moves.

[0054] Furthermore, the movable side plate 2021 and end cap 2012 are exposed on the side wall of the brush housing 210. Preferably, the area of ​​the side plate and / or end cap 2012 is approximately the area of ​​the side wall of the brush housing, and the ratio of the area of ​​the side plate and / or end cap 2012 to the area of ​​the side wall of the brush housing is in the range of 0.8 to 1.

[0055] As part of this invention, such as Figure 12 As shown, it also includes a cleaning tank 310 formed to accommodate the cleaning component 202. In one form of the cleaning tank, the cleaning tank 310 is formed on the base 30, and the periphery of the cleaning tank is provided with surrounding ribs 330. When the user needs self-cleaning or to charge the battery assembly, the surface cleaning device is placed on the base so that the two are compatible and connected. In another form of the cleaning tank, the cleaning tank is formed with a groove plate, which is movably disposed within the floor brush. When self-cleaning is required, the groove plate moves to below the cleaning component to form a cleaning tank for the cleaning component to perform self-cleaning operations.

[0056] In existing technologies, during the self-cleaning process of the surface cleaning device docking with the base, dirt can be splashed out from the gap between the brush cover and the base during the rotation of the cleaning roller, causing contamination. When clumps of debris are present, they can get stuck in the gap, preventing the cleaning roller from moving the debris and creating a "dead zone." Furthermore, because the gap is far from the suction port, the suction is insufficient to remove the debris. Therefore, a blocking portion 320 is provided between the base 30 and the brush cover 204. The blocking portion 320 extends from the leading edge of the brush cover towards the base 30. The cleaning roller 202, brush cover 204, blocking portion, and base together form a guide channel. The driver 208 drives the brush to move forward to approach the blocking portion in a second state, reducing the cross-sectional area of ​​the guide channel in the direction of the cleaning roller's rotation. The direction of movement of dirt within the guide channel is as follows: Figure 13 , 14 The direction of the dashed arrow is indicated.

[0057] By setting up a blocking part to fill the gap between the roller brush cover and the base as much as possible, it is possible to prevent the cleaning roller from rotating and splashing out the dirt during the self-cleaning process. At the same time, a driver is also set up to drive the cleaning roller to move forward to approach the blocking part. Compared with the first state, when the cleaning roller is in the second state, the cross-sectional area of ​​the guide channel in the direction of rotation of the cleaning roller is significantly reduced. Clumps of dirt will be carried by the cleaning roller to the suction port and sucked away, thereby eliminating the "dead zone". On the other hand, the significantly reduced cross-sectional area of ​​the guide channel here can accelerate the airflow speed, thereby further preventing the tangled matter from getting stuck in the "dead zone".

[0058] Furthermore, the ratio of the maximum distance between the cleaning roller and the brush cavity in the first state to the maximum distance between the cleaning roller and the inner wall of the blocking part in the second position ranges from 0.7 to 1.3. Specifically, in this embodiment, the maximum distance between the cleaning roller and the brush cavity in the first state is as follows: Figure 13 In S1, the maximum distance between the cleaning roller and the inner wall of the blocking part in the second position is as follows: Figure 14 In S2, the ratio of S1 / S2 ranges from 0.7 to 1.3.

[0059] In a preferred embodiment of this example, one end 3210 of the blocking part 320 is detachably snapped onto the retaining rib 330, and the other end 3220 engages with the roller brush cover 204. It is understood that the other end 3220 is close to the roller brush cover, specifically with a very small gap, or directly abutting. By detachably mounting the blocking part on the base, it is convenient for the user to disassemble and clean it. Specifically, one end 3210 of the blocking part 320 includes a first side plate 3211 and a second side plate 3212, with one end of the first side plate and the second side plate meeting to form a groove 3230 that snaps onto the retaining rib 330. By providing a downward-facing groove 3230 on the blocking part and using it to snap onto the outer surface of the retaining rib 330, it is directly snapped onto the retaining rib from top to bottom, making installation more convenient. Moreover, its installation direction is consistent with the forward rotation tangent direction of the cleaning roller, which can reduce the amount of dirt and liquid thrown out during the forward rotation of the cleaning roller entering between the groove and the retaining rib. More specifically, the other end 3220 is provided with an elastic element for abutting against the roller brush cover. By providing an elastic element on the other end 3220, the hard collision between the brush and the blocking part 320 is reduced when the user mates the surface cleaning device with the base, and the elasticity of the elastic element facilitates the user's connection and installation.

[0060] In one possible implementation of this embodiment, the blocking portion 320 is formed on the roller brush cover 204. Specifically, the blocking portion is detachably disposed on the front side of the roller brush cover or integrally fixed to the roller brush cover. The other end of the blocking portion is also provided with an elastic member for abutting against the base station.

[0061] Furthermore, a first arcuate surface 2041 is formed on the inner side of the front part of the roller brush cover, and a second arcuate surface 3240 facing the roller brush is formed on the blocking part. The first arcuate surface 2041 and the second arcuate surface 3240 have a non-smooth transition. Specifically, in this embodiment, the first arcuate surface 2041 and the second arcuate surface 3240 form a non-smooth transition at the second end 3220 of the blocking part 320. By setting the first arcuate surface and the second arcuate surface to have a non-smooth transition, the cross-sectional area of ​​the guide channel changes abruptly at this point, increasing the probability that the tangled material, especially clumps of tangled material, will change state abruptly at this point, thereby increasing the probability that it will be carried to the suction port by the cleaning roller. More specifically, the second arcuate surface is coaxial with the cleaning roller, and the radius of the second arcuate surface is larger than the radius of the first arcuate surface, thereby further increasing the probability that it will be carried to the suction port by the cleaning roller.

[0062] The cleaning roller disengages from the scraper in the second state, forming a gap between the scraper and the cleaning roller that communicates with the guide channel. More specifically, in the self-cleaning state of mutual interference, the cleaning roller and the scraper have a first interference fit between them; in the self-cleaning state of separation, the cleaning roller and the scraper have a first gap, wherein the first gap is greater than or equal to the first interference fit. With a fixed movement distance of the cleaning roller relative to the comb teeth, the width of the first gap can be increased as much as possible, reducing the probability of dirt being blocked by the wiping element. Especially when there are strips or clumps of tangled material, it reduces the likelihood of the material being hooked onto the comb teeth or other parts of the wiping element, thereby improving the removal effect of the tangled material and also improving the wiping effect on the roller brush cavity during the rotation of the tangled material by the cleaning roller.

[0063] After cleaning the surface to be cleaned, the aforementioned surface cleaning device docks with the base 30, positioning the roller brush within the cleaning tank. It automatically initiates self-cleaning or responds to a user-manually triggered start switch. The technical solution of the self-cleaning method for the aforementioned surface cleaning system is described below.

[0064] In this embodiment, as Figure 2 As shown, the self-cleaning method for entangled materials in the surface cleaning system includes an entangled material gathering step and a roller brush cavity cleaning step. In the entangled material gathering step, the first state and the second state are switched at least once. In the first state, the cleaning component alternates between forward and reverse rotation at least once. In the roller brush cavity cleaning step, the cleaning component is controlled to be in the second state, and the cleaning component rotates forward or reverse to drive the entangled material to move and wipe the roller brush cavity.

[0065] In this embodiment, during the entanglement gathering step, the cleaning component switches between a first state and a second state at least once. In the first state, the cleaning component rotates in both directions, enabling it to rub the hair stuck between the scraper and the cleaning component or in the gaps between the comb teeth. By utilizing the contact between the cleaning component and the wiping component, it simulates the working principle of "twisting hemp rope," rubbing and gathering this type of lightweight and loose dirt into strips or clumps, making the entanglement easier to clean. In the roller brush cavity cleaning step, the second state rotates in either the forward or reverse direction, increasing the distance between the cleaning component and the roller brush cavity and the wiping component. The cleaning component drives the strips or clumps of entanglement to rotate within the roller brush cavity. Since the strips or clumps of entanglement have greater flexibility, the clumps of entanglement are embedded between the cleaning component and the roller brush cavity wall, using the entanglement to wipe and clean the dirt adhering to the roller brush cavity wall.

[0066] Understandably, the alternating forward and reverse rotation of the cleaning component can be either forward first and then reverse, or reverse first and then forward; the switching between the first and second states can be from the first state to the second state, or from the second state to the first state; as shown in the appendix. Figures 7 to 9 For example, based on the reference direction in the attached diagram, if counterclockwise rotation of the cleaning component is defined as forward rotation, then clockwise rotation is reverse rotation; if clockwise rotation of the cleaning component is defined as forward rotation, then counterclockwise rotation is reverse rotation. The following embodiments will use counterclockwise rotation of the cleaning component as an example of forward rotation. The preset number of cycles is the cycle period, which can be 1, 2, 3, or more.

[0067] Example 1:

[0068] like Figure 15 As shown, in this embodiment, the step of gathering the entangled material includes:

[0069] First sub-step: The cleaning component is in the first state, and the cleaning component cycles forward and reverse at least once;

[0070] Second sub-step: The cleaning part is in the second state, and the cleaning part cycles forward and reverse at least once.

[0071] In this embodiment, the first sub-step is executed first. During this sub-step, the cleaning component is in a first state and rotates back and forth. In this first state, the cleaning component cycles back and forth, effectively rubbing the hair stuck between the wiping and cleaning components or in the gaps between the comb teeth in both directions. By utilizing the contact between the cleaning and wiping components, simulating the working principle of "twisting hemp rope," this light and loosely distributed dirt is rubbed and gathered into strips or clumps, making the tangled material easier to clean. After the first sub-step is completed, the second sub-step begins, and the cleaning component switches to a second state, where it cycles back and forth. In the second state, since the cleaning and wiping components are not in contact, the strips or clumps of tangled material on both sides of the wiping component can further gather into larger strips or clumps. Furthermore, these relatively large tangled materials can pull on the material already wrapped around the outer surface of the roller brush, untangling it and promoting its further aggregation with the hair clumps into larger clumps during the forward and reverse rotation.

[0072] In a preferred embodiment of this invention, the suction assembly operates continuously during the rotation of the cleaning component in the entanglement gathering step. That is, in the first and / or second sub-steps, the fan and the cleaning component operate simultaneously. This ensures that throughout the entire entanglement gathering stage, dirt detached from the roller brush cavity, the back of the cleaning component, or the wiping component is drawn away through the suction port and stored in the wastewater tank, preventing dirt from being carried by the cleaning component and becoming stuck on the back of the wiping component or adhering to the roller brush cavity, thus avoiding secondary pollution.

[0073] Furthermore, in the preferred embodiment described above, even when entanglement is present, a small amount of entanglement may still remain wrapped around the surface of the cleaning roller brush and cannot be kneaded into strips. Therefore, in the first and / or second sub-steps, before at least one forward and reverse rotation cycle of the cleaning component, the water supply component is controlled to supply liquid for a preset duration. This allows more cleaning liquid to be absorbed by the cleaning roller brush. Additionally, when entanglement is present during the cleaning process, the strips of dirt kneaded in the aforementioned embodiment absorb water and swell, making them easier to scrape off by the wiping component. On the other hand, for the small amount of entanglement still wrapped around the surface of the cleaning roller in the aforementioned embodiment, the bristles of the cleaning roller expand after absorbing water, causing the entanglement wrapped around its surface to loosen under the force of its expansion. Under the scraping action of the wiping component, the entanglement is untangled and gradually peeled off the roller brush surface, then forms strips or is directly sucked away.

[0074] In this embodiment, the first sub-step includes steps S100 and S200. In step S100, the roller brush switches between forward and reverse directions a preset number of times. In step S200, the roller brush switches between forward and reverse directions a preset number of times. Between steps S100 and S200, the water supply component supplies liquid for a preset time, and during the liquid supply period, both the roller brush and the fan stop working. This ensures that the cleaning liquid is relatively concentrated, and the area of ​​bristle expansion is also relatively concentrated, resulting in better untangling of the entangled material and preventing the cleaning liquid from being dispersed by the rotation of the roller brush or directly sucked away by the fan.

[0075] Furthermore, in the second sub-step, after the liquid supply component supplies liquid for a preset time, the cleaning component is controlled to be in the second state, and then the cleaning component switches between forward and reverse rotation. The liquid supply component starts supplying liquid first, causing the strip-shaped dirt that could not be removed in the aforementioned first cleaning step to absorb water and expand further. When the cleaning component is in the second state, the distance between the cleaning roller and the wiping component increases, forming a gap. At this time, the forward and reverse rotation of the cleaning roller can cause the strip-shaped entangled objects to further aggregate into larger clumps or thicker and shorter strips, making them easier to remove. Specifically, while the cleaning component switches between forward and reverse rotation, the fan continues to operate, thereby transferring the entangled objects outside the roller brush cavity.

[0076] In one specific embodiment, in step S100: the cleaning component rotates in reverse for 2 seconds followed by 2 seconds, completing a cycle of 6 such cycles, while the fan continues to operate continuously. In step S200: after the liquid supply assembly supplies liquid for N seconds, a 10-second wait is passed, and then the cleaning component rotates in reverse for 2 seconds followed by 2 seconds, completing a cycle of 6 such cycles, while the fan continues to operate continuously during the rotation of the cleaning component. Then, the second cleaning step begins: after the liquid supply assembly supplies liquid for N seconds, the cleaning component is controlled to be in a second state, and the cleaning component rotates in reverse for 2 seconds followed by 2 seconds, completing a cycle of 5 such cycles, while the fan continues to operate continuously during the rotation of the cleaning component.

[0077] In this embodiment, a dirt collection step is also included: the cleaning component is in a first state, the cleaning component continues to rotate, and the fan continues to run. During the dirt collection step, the fan continues to run while the cleaning component rotates, which may result in some dirt not being carried away by the fan. By adding a suction step, in which the cleaning component is in the first state, the roller brush cavity space above the wiping component is not within the fan's effective area due to the isolation provided by the wiping component, thereby increasing the fan's suction force and ensuring that all remaining dirt is sucked away. To further improve the cleaning effect, the fan power at this stage can be higher than the fan power in the dirt removal stage.

[0078] Furthermore, in the dirt collection step, the cleaning component in the first state rotates alternately in both forward and reverse directions at least once. To improve the cleaning effect, the duration of the forward rotation of the cleaning component is set to be greater than or equal to the duration of the reverse rotation. The alternating forward and reverse rotation of the cleaning component ensures that dirt on both sides of the bristles can be sucked away by the fan. When the cleaning component rotates forward, most of the dirt can be scraped away by the wiping component and sucked away by the fan under the combined action of the wiping component. At this time, the small amount of dirt on the other side of the bristles can be sucked away by the fan with only a short reverse rotation. In this case, setting the duration of the forward rotation of the cleaning component to be greater than or equal to the duration of the reverse rotation can improve the cleaning efficiency of the cleaning component rotation while ensuring the cleaning effect, and avoid the bristles being scraped by the wiping component and shortening their lifespan due to prolonged rotation of the cleaning component.

[0079] As mentioned earlier, some dirt may still remain inside the roller brush cavity and be sucked away by the blower during the cleaning stage. This dirt is likely due to its light weight and strong adhesion. To further treat this dirt, a water supply component is included to supply liquid for a preset time before the suction component operates in the suction stage. This causes the dirt clumps remaining in the roller brush cavity to become heavier due to water absorption, making them easier to be sucked away by the blower.

[0080] In this embodiment, one specific implementation of the above-mentioned suction stage is as follows: after the liquid supply component supplies liquid for 30 seconds, the blower is started, and at the same time, the roller brush rotates forward for 20 seconds in the first state, then reverses for 5 seconds, and finally rotates forward for 20 seconds to end.

[0081] Example 2:

[0082] This embodiment is a further improvement on the aforementioned embodiment.

[0083] Furthermore, the roller brush chamber cleaning step also includes: switching between the first state and the second state at least once, with the rotation direction of the cleaning component before the switch being opposite to the rotation direction of the cleaning component after the switch. For example, when switching from the first state to the second state, if the cleaning component rotates forward in the first state, then when switching to the second state, the cleaning component rotates in reverse; the same applies when switching from the second state to the first state.

[0084] In this embodiment, when switching between the first state and the second state, the distance between the cleaning component and the roller brush cavity and the wiping component changes. The volume of the clump-shaped wrapped material sandwiched between the cleaning component and the roller brush cavity wall also changes due to the change in distance. By setting the rotation direction of the cleaning component before the switch to the opposite of the rotation direction of the cleaning component after the switch, the flexibility and movement direction of the clump-shaped wrapped material can be increased, thereby increasing its coverage area or region of the roller brush cavity, thus improving the cleaning effect of the roller brush cavity.

[0085] In one possible implementation of this embodiment, the roller brush chamber cleaning step includes:

[0086] S300 procedure: Control the cleaning component to be in the first state, the cleaning component rotates forward;

[0087] S400 step: Control the cleaning component to the second state, then reverse the cleaning component;

[0088] The above steps S300 and S400 are repeated a preset number of times.

[0089] In another possible implementation of this embodiment, the roller brush chamber cleaning step includes:

[0090] S500 step: Control the cleaning component to be in the second state, and the cleaning component rotates forward;

[0091] S600 step: Control the cleaning component to the first state, and reverse the cleaning component;

[0092] The above steps S500 and S600 are repeated a preset number of times.

[0093] Furthermore, in the roller brush chamber cleaning step, when the cleaning component is in the second state, the cleaning component rotates forward and reverse at least once each.

[0094] In the second state, the cleaning component rotates forward and reverse at least once each, further increasing the flexibility and movement direction of the clump-like entanglement, increasing the coverage area of ​​the roller brush cavity, and thus improving the cleaning effect of the roller brush cavity.

[0095] like Figure 16 As shown, in a preferred embodiment of this example, the roller brush chamber cleaning step includes:

[0096] S300 procedure: Control the cleaning component to be in the first state, and rotate the cleaning component forward;

[0097] S400 step: Control the cleaning component to the second state, then reverse the cleaning component;

[0098] The above steps S300 and S400 are repeated a preset number of times;

[0099] S500 step: Control the cleaning component to be in the second state, and the cleaning component rotates forward;

[0100] S600 step: Control the cleaning component to the first state, and reverse the cleaning component;

[0101] The above steps S500 and S600 are repeated a preset number of times.

[0102] In the above preferred embodiments, by combining the state of the cleaning component and the rotation direction of the cleaning component in various ways, the flexible state and movement direction of the clump-like entangled material can be fully displayed, thereby improving the cleaning effect of the roller brush cavity and increasing cleaning efficiency.

[0103] A specific method in the preferred embodiment of the above-mentioned roller brush cavity cleaning step is as follows:

[0104] Start the fan and control the cleaning component to the first state. After the cleaning component rotates forward for 10 seconds, switch to the second state. Then, reverse the cleaning component for 10 seconds and repeat the cycle twice.

[0105] Start the control fan and keep the cleaning component in the second state. After the cleaning component rotates forward for 10 seconds, switch to the first state. Repeat the cycle of rotating forward for 10 seconds twice.

Claims

1. A self-cleaning method for entangled materials in a surface cleaning system, the surface cleaning system comprising a surface cleaning device and a base, the surface cleaning device comprising a cleaning component, a scraping component, a water supply component, and a suction component, the surface cleaning device cooperating with the base to clean entangled materials, characterized in that, The cleaning component and the scraping component are in a first state of mutual contact and a second state of mutual separation, and the method includes: The entanglement accumulation step involves switching between the first state and the second state at least once, and in the first state, the cleaning component is rotated forward and backward at least once. Cleaning steps for the roller brush cavity: Control the cleaning component to be in the second state, and rotate the cleaning component forward or backward to drive the wrapped material to move and wipe the roller brush cavity.

2. The self-cleaning method for entangled materials in the surface cleaning system according to claim 1, characterized in that, The step of gathering the entangled material includes: First sub-step: The cleaning component is in the first state, and the cleaning component cycles forward and reverse at least once; Second sub-step: The cleaning part is in the second state, and the cleaning part cycles forward and reverse at least once.

3. The self-cleaning method for entangled materials in the surface cleaning system according to claim 2, characterized in that, In the first sub-step and / or the second sub-step, the fan and the cleaning unit operate simultaneously.

4. The self-cleaning method for entangled materials in the surface cleaning system according to claim 2, characterized in that, In the first and / or second sub-step, liquid is supplied for a preset time before the cleaning component operates.

5. The self-cleaning method for entangled materials in the surface cleaning system according to claim 2, characterized in that, In the step of entanglement gathering, before the first sub-step, the cleaning component is controlled to be in the second state and liquid is supplied.

6. The self-cleaning method for entangled materials in the surface cleaning system according to any one of claims 1-5, characterized in that, The roller brush chamber cleaning step further includes: switching between the first state and the second state at least once, with the rotation direction of the cleaning component before the switch being opposite to the rotation direction of the cleaning component after the switch.

7. The self-cleaning method for entangled materials in the surface cleaning system according to claim 6, characterized in that, In the cleaning step of the roller brush chamber, when the cleaning component is in the second state, the cleaning component rotates forward and reverse at least once each.

8. The self-cleaning method for entangled materials in the surface cleaning system according to claim 7, characterized in that, In the roller brush cavity cleaning step: S300 step: Control the cleaning component to be in the first state, and the cleaning component rotates forward; S400 step: Control the cleaning component to the second state, and reverse the cleaning component; The above steps S300 and S400 are repeated a preset number of times; S500 step: Control the cleaning component to be in the second state, and the cleaning component rotates forward; S600 step: Control the cleaning component to the first state, and reverse the cleaning component; The above steps S500 and S600 are repeated a preset number of times.

9. The self-cleaning method for entangled materials in the surface cleaning system according to any one of claims 1-5, characterized in that, Following the roller brush chamber cleaning step, the process further includes: Waste collection steps: Control the cleaning device to the first state, turn on the fan, and alternate the forward and reverse rotation of the roller brush at least once, with the forward rotation time being longer than the reverse rotation time.

10. The self-cleaning method for entangled materials in the surface cleaning system according to claim 9, characterized in that, In the waste collection step, liquid is supplied for a preset time before the blower is turned on.

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