Self-cleaning control method of surface cleaning device

Abstract

The invention provides a self-cleaning control method of a surface cleaning device, the surface cleaning device comprises a cleaning machine and a base, the cleaning machine comprises a cleaning part, the surface cleaning device has the self-cleaning control method used for cleaning the cleaning part, and the self-cleaning control method comprises a cleaning stage, the cleaning stage at least comprises a first cleaning period and a second cleaning period; in the first cleaning period and the second cleaning period, the cleaning part is controlled to alternately execute forward rotation and reverse rotation; wherein the first speed of reverse rotation of the cleaning part in the first cleaning period is smaller than the second speed of reverse rotation of the cleaning part in the second cleaning period. The situation that residual dirt remains on the base after the cleaning operation of the cleaning piece is finished is relieved.

Description

Technical Field

[0001] This application relates to the technical field of household appliances, and particularly to a self-cleaning control method for a surface cleaning device. Background Art

[0002] Cleaning machines such as floor washers are equipped with cleaning parts and dirt suction ports. The cleaning parts wipe and clean the ground, and the dirt formed after cleaning is absorbed into the sewage bucket of the cleaning machine through the dirt suction port. In practice, when the cleaning is completed, there are likely to be some residual dirt in the cleaning machine. Among them, the residual dirt includes the dirt that remains at the dirt suction port and has not been absorbed into the sewage bucket, and also includes large particle dirt such as melon seeds and fruit peels that are sandwiched between the dirt suction port and the cleaning part and are not easily absorbed into the sewage bucket, and also includes the dirt sandwiched between the cleaning part and the scraping strip that scrapes the cleaning part.

[0003] However, when the cleaning machine is placed on the base and the base performs a cleaning operation on the cleaning part, the cleaning part will rotate in the reverse direction. During the reverse rotation of the cleaning part, the above-mentioned residual dirt will be lifted up, and as the cleaning part rotates, it will be flung away from the dirt suction port, and finally be flung onto the position on the base that the cleaning part cannot reach during the rotation cleaning, resulting in residual dirt on the base after the cleaning operation of the cleaning part is completed, which affects the user experience. Summary of the Invention

[0004] The purpose of the embodiments of this application is to provide a self-cleaning control method for a surface cleaning device, and this application alleviates the occurrence of residual dirt remaining on the base after the cleaning operation of the cleaning part is completed.

[0005] This application provides a self-cleaning control method for a surface cleaning device. The surface cleaning device includes a cleaning machine and a base. The cleaning machine includes a cleaning part. The surface cleaning device has a self-cleaning control method for cleaning the cleaning part. The self-cleaning control method includes a cleaning stage, and the cleaning stage at least includes a first cleaning cycle and a second cleaning cycle; during the first cleaning cycle and the second cleaning cycle, the cleaning part is controlled to alternately perform forward rotation and reverse rotation; wherein, the first speed of the reverse rotation of the cleaning part during the first cleaning cycle is less than the second speed of the reverse rotation of the cleaning part during the second cleaning cycle.

[0006] In one embodiment, the reverse rotation of the cleaning part during the first cleaning cycle and the second cleaning cycle is intermittent reverse rotation, and the first angle of the reverse rotation of the cleaning part during the first cleaning cycle is less than the second angle of the reverse rotation of the cleaning part during the second cleaning cycle.

[0007] In one embodiment, the reverse rotation of the cleaning part during the first cleaning cycle is intermittent reverse rotation, and the reverse rotation of the cleaning part during the second cleaning cycle is continuous reverse rotation.

[0008] In one embodiment, during the first cleaning cycle, the cleaning member rotates in the reverse direction intermittently, and during the first cleaning cycle, the cleaning member rotates in the forward direction intermittently.

[0009] In one embodiment, during the first cleaning cycle, the cleaning member is controlled to rotate in the reverse direction first and then in the forward direction.

[0010] In one embodiment, the surface cleaning device further includes a dirt suction element, and the cleaning stage further includes:

[0011] Unwinding step: controlling the cleaning member to alternately rotate in the forward and reverse directions, and controlling the dirt suction element to stop operating;

[0012] Dirt suction step: controlling the cleaning member to alternately rotate in the forward and reverse directions, and controlling the dirt suction element to operate.

[0013] In one embodiment, the cleaning machine further includes a liquid supply element, and the control method of the surface cleaning device further includes a soaking stage before the cleaning stage. During the soaking stage, the liquid supply element is controlled to supply liquid and the cleaning member is controlled to rotate.

[0014] In one embodiment, the cleaning machine further includes a dirt suction element, and the control method of the surface cleaning device further includes a dirt suction stage. During the dirt suction stage, the dirt suction element is controlled to operate at a target power; wherein the target power is greater than the working power of the cleaning machine when performing a cleaning operation on the surface to be cleaned.

[0015] In one embodiment, a floating front squeegee is provided on the cleaning machine. When cleaning the surface to be cleaned, the front squeegee has a first position in contact with the surface to be cleaned and a second position separated from the surface to be cleaned. When performing self-cleaning, the front squeegee has a cleaning state in contact with the cleaning member, and the front squeegee is wiped by the rotation of the cleaning member.

[0016] In one embodiment, the cleaning member is movably mounted on the cleaning machine, and the cleaning member moves in a direction close to the front squeegee to be in contact with the front squeegee; alternatively, the front squeegee is pivotally mounted on the cleaning machine, and the front squeegee rotates in a direction close to the cleaning member to be in contact with the cleaning member; alternatively, the front squeegee is mounted on the cleaning machine through a movable upper cover, and the movable upper cover drives the front squeegee to move in a direction close to the cleaning member to be in contact with the cleaning member.

[0017] In the solution of this application, the cleaning stage in the cleaning operation includes a first cleaning cycle and a second cleaning cycle. The cleaning part is cleaned during both the first cleaning cycle and the second cleaning cycle, improving the cleaning effect on the cleaning part. Further, in this application, during the self-cleaning process, the cleaning part rotates forward and backward alternately for cleaning. To reduce the probability of the cleaning part throwing out garbage outward during reverse rotation, making it not easy for the residual dirt in the cleaning machine to be thrown to the position on the base where the cleaning part cannot rotate for cleaning, alleviating the occurrence of the situation where the residual dirt remains on the base. The forward and backward alternating rotation of the cleaning part during the self-cleaning process includes at least two cleaning cycles with different reverse rotation speeds. That is, the first cleaning cycle and the second cleaning cycle. During the first cleaning cycle and the second cleaning cycle, the cleaning part is controlled to alternately perform forward rotation and reverse rotation, and the cleaning part rotates in reverse at a slower speed during the first cleaning cycle. Specifically, the reverse rotation speed of the cleaning part during the first cleaning cycle is less than the reverse rotation speed of the cleaning part during the second cleaning cycle, so that the centrifugal force on the dirt that has not been collected into the sewage bucket during the first or the first few reverse rotations when the cleaning part just enters the self-cleaning mode is relatively small, reducing the probability of the dirt being carried out of the floor brush or remaining on the base. Each of the first cleaning cycle and the second cleaning cycle may include one or more cleaning sub-steps of forward and reverse rotation alternation. The number of cleaning sub-steps included in the first cleaning cycle and the second cleaning cycle may be the same or different, which is not limited here. After the forward and reverse rotation cleaning in the first cleaning cycle, part of the dirt that has not been sucked into the sewage bucket enters the sewage bucket, and the probability of throwing out the dirt during the subsequent reverse rotation process is relatively small. Therefore, the reverse rotation speed of the cleaning part can be appropriately increased during the second cleaning cycle to ensure the self-cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of this application, the drawings required to be used in the embodiments of this application will be briefly introduced below.

[0019] Figure 1 It is a schematic structural diagram of the surface cleaning device provided by this application;

[0020] Figure 2 It is a schematic structure of the cleaning machine provided by this application Figure 1 ;

[0021] Figure 3 It is a partial cross-sectional view of the floor brush provided by this application;

[0022] Figure 4 It is a partial cross-section of the surface cleaning device provided by this application Figure 1 ;

[0023] Figure 5 It is a schematic flow chart of the self-cleaning control method of the surface cleaning device provided by this application;

[0024] Figure 6 Partial cross-section of the surface cleaning device provided for this application Figure 2 ;

[0025] Figure 7 Structural schematic of the cleaning machine provided for this application Figure 2 。

[0026] Reference numerals:

[0027] 1 - Surface cleaning device; 10 - Cleaning machine; 20 - Base; 21 - Air outlet; 100 - Body; 110 - Handle; 120 - Sewage bucket; 130 - Dirt suction element; 200 - Floor brush; 210 - Cleaning element; 211 - Rotating cylinder; 212 - Brush bristles; 220 - Dirt suction port; 230 - Liquid supply element; 240 - Dirt scraping strip; 2401 - First dirt scraping strip; 2402 - Second dirt scraping strip; 250 - Floor scraper; 260 - Roller brush cavity; 270 - Front scraping strip; 271 - Upper cover. Detailed implementation manners

[0028] The technical solutions in the embodiments of this application will be described below with reference to the accompanying drawings in the embodiments of this application.

[0029] Similar reference numerals and letters denote similar items in the following accompanying drawings. Therefore, once an item is defined in one accompanying drawing, it does not need to be further defined and explained in subsequent accompanying drawings. At the same time, in the description of this application, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0030] Embodiment 1:

[0031] As Figure 1 shown, this embodiment provides a surface cleaning device 1. The surface cleaning device 1 includes at least one cleaning machine 10. The cleaning machine 10 includes, but is not limited to, a floor washer, a cleaning robot such as a mopping robot or a sweeping and mopping integrated robot. The surface cleaning device 1 may further include a base 20 for housing the cleaning machine 10. As a way of implementation, the base 20 is connected to a power source and includes a charging component to serve as a charging pile for the cleaning machine 10. In one way of implementation, the base 20 can automatically clean the cleaning element 210 or the dust collection container of the cleaning machine 10; in another way of implementation, the base 20 may further include a dust collection component with a large suction force to realize the collection of dirt in the dust collection container of the cleaning machine 10; in other ways of implementation, the base 20 may further have other components to realize more other functions. For the convenience of description, in the following, taking the cleaning machine 10 as a floor washer and the base 20 as the base 20 matching the above floor washer as an example, the structure of the surface cleaning device 1 will be explained.

[0032] As Figure 2 and Figure 3 shown, the cleaning machine 10 includes a control unit (not shown in the figure), a pivotally connected body 100 and a floor brush 200. The control unit can be disposed on the body 100 or the floor brush 200. A handle 110 for the user to hold is provided on the body 100. A detachable cleaning member 210 having bristles 212 is provided on the floor brush 200. The bristles 212 are used to perform wiping-type cleaning operations on the surface to be cleaned in a dry state or a wet state to remove stains or water stains on the surface to be cleaned. Exemplarily, the bristles 212 of the cleaning member 210 can be made of hygroscopic textile materials such as cotton wool, wool, nylon, and pig bristles. In one implementation, the cleaning member 210 is a rotatable structure. A target motor connected to the cleaning member 210 and the control unit is provided on the floor brush 200. The target motor can drive the cleaning member 210 to rotate under the control of the control unit. During the rotation of the cleaning member 210, the bristles 212 wipe the surface to be cleaned; meanwhile, in this case, the cleaning member 210 includes a rotating cylinder 211, and the bristles 212 cover the outer surface of the rotating cylinder 211; Exemplarily, at this time, the cleaning member 210 can be a cleaning tool such as a single roller brush, a double roller brush, or a track brush. In another implementation, the cleaning member 210 is a non-rotating fixed component. In this embodiment, the cleaning member 210 is taken as an example of a rotatable structure. In one implementation, one or more cleaning members 210 can be provided in the cleaning machine 10, and this embodiment does not limit it. In this embodiment, the cleaning machine 10 is taken as an example with one cleaning member 210 provided.

[0033] As Figure 2 and Figure 3 shown, a dirt suction assembly is further provided on the cleaning machine 10. The dirt suction assembly includes a dirt suction port 220, a dirt suction pipe (not shown in the figure), a sewage bucket 120, and a dirt suction element 130; the dirt suction port 220 is provided on the floor brush 200 and is located behind the cleaning member 210. The sewage bucket 120 and the dirt suction element 130 are provided on the body 100. The dirt suction pipe is communicated with the dirt suction port 220 and the sewage bucket 120. The dirt suction element 130 is communicated with the dirt suction pipe through the sewage bucket 120 and is electrically connected to the control unit; the dirt suction element 130 is used to suck dirt into the sewage bucket 120 through the dirt suction port 220 and the dirt suction pipe under the control of the control unit. The dirt here includes dry garbage, wet garbage, and dry-wet mixed garbage, that is, any pollutants that may appear on the surface to be cleaned. Exemplarily, the above-mentioned dirt suction element 130 can be a dirt suction fan.

[0034] Optionally, as Figure 3 shown, a floor scraper 250 is further provided on the cleaning machine 10; among them, Exemplarily, the floor scraper 250 can be made of flexible materials such as rubber or silica gel.

[0035] Optionally, asFigure 3 As shown, a liquid supply element 230 is further provided on the cleaning machine 10. The liquid supply element 230 is provided on the floor brush 200, behind the cleaning element 210 and above the dirt suction port 220. The liquid supply element 230 is used to supply liquid to the cleaning element 210 or the surface to be cleaned at a certain flow rate under the control of the control unit.

[0036] A dirt scraping strip 240 is also provided on the floor brush 200. The dirt scraping strip 240 is located behind the cleaning element 210 and is in interference fit with the cleaning element 210, and is used to peel off the dirt attached to the cleaning element 210. Optionally, the dirt scraping strip 240 can be fixedly installed on the cleaning machine 10, or can be movably installed on the cleaning machine 10 to adjust the interference amount with the cleaning element 210 as needed. Optionally, only one dirt scraping strip 240 can be provided on the floor brush 200. This dirt scraping strip 240 is a flat ordinary scraping strip, which is used to scrape the liquid dirt on the cleaning element 210. Or, this dirt scraping strip 240 can be a comb-shaped scraping strip, which is used to strip the hair on the cleaning element 210; Optionally, as Figure 3 As shown, two dirt scraping strips 240 can also be provided on the floor brush 200, namely a first dirt scraping strip 2401 and a second dirt scraping strip 2402. The first dirt scraping strip 2401 is a flat ordinary scraping strip; the second dirt scraping strip 2402 is a comb-shaped scraping strip. The first dirt scraping strip 2401 and the second dirt scraping strip 2402 can be generally located in the same plane longitudinally. The first dirt scraping strip 2401 is located above the second dirt scraping strip 2402; or, the first dirt scraping strip 2401 is located below the second dirt scraping strip 2402. Optionally, two dirt scraping strips 240 can also be provided on the floor brush 200. Both of the two dirt scraping strips 240 are flat ordinary scraping strips, or both of the two dirt scraping strips 240 are comb-shaped scraping strips.

[0037] Of course, it can be understood that a roller brush cavity 260 for accommodating the cleaning element 210 is formed on the floor brush 200. The cleaning element 210, the dirt suction port 220, the dirt scraping strip 240 and the liquid supply element 230 can be located in the above-mentioned roller brush cavity 260; the bottom of the roller brush cavity 260 is provided with an open mouth so that when the cleaning element 210 is located in the roller brush cavity 260, the bottom of the cleaning element 210 can be exposed to contact with the surface to be cleaned to clean the surface to be cleaned.

[0038] In practice, when the cleaning machine 10 is placed on the surface to be cleaned to clean the surface to be cleaned, the control unit controls the operation of the dirt suction element 130 and drives the cleaning element 210 to rotate. At the same time, during the rotation of the cleaning element 210, the control unit controls the liquid supply element 230 to supply liquid to the cleaning element 210 or the surface to be cleaned at a certain flow rate to keep the cleaning element 210 in a wet state. The wet cleaning element 210 generates physical friction with the surface to be cleaned during rotation and wipes the surface to be cleaned. During the process of cleaning the surface to be cleaned, the user holds the handle 110 and continuously pushes and pulls the body 100 to change the moving direction of the cleaning machine 10. The cleaning element 210 wipes each area of the surface to be cleaned during the movement of the cleaning machine 10 and removes the dirt on the surface to be cleaned. During the process of removing the dirt, the dirt will adhere to the cleaning element 210. The scraping strip 240 scrapes the cleaning element 210 during the rotation of the cleaning element 210 and scrapes off some of the dirt on the cleaning element 210. The scraped dirt and the dirt on the surface to be cleaned are absorbed to the dirt suction port 220 under the suction of the dirt suction element 130 and enter the sewage bucket 120 along the dirt suction pipe. Continuously clean the surface to be cleaned according to the above work process until the cleaning of the surface to be cleaned is completed.

[0039] After the cleaning of the surface to be cleaned is completed, the cleaning machine 10 needs to be placed on the base 20 for maintenance operations such as self-cleaning, drying, and charging.

[0040] However, in practice, when the cleaning of the surface to be cleaned is completed, the cleaning machine 10 controls the dirt suction element 130, the cleaning element 210, and the liquid supply element 230 to stop operating according to the received shutdown instruction. When the cleaning machine 10 shuts down, there are likely to be some residual dirt in the cleaning machine 10, especially in the roller brush chamber 260.

[0041] First, after the cleaning machine 10 receives the shutdown instruction, the operating power of the dirt suction element 130 will gradually decrease and finally be set to zero, or the operating power of the dirt suction element 130 will be directly set to zero. Regardless of which of the above methods the operating power of the dirt suction element 130 changes, the suction force of the dirt suction element 130 will decrease or even be set to zero, which may cause some dirt at the dirt suction pipe or the dirt suction port 220 to not be promptly suctioned into the sewage bucket 120 and finally remain at the dirt suction port 220. Therefore, the above residual dirt includes the dirt that remains at the dirt suction port 220 and is not absorbed into the sewage bucket 120 due to the stop of the cleaning machine 10.

[0042] Secondly, in practice, there are some large-particle dirt on the surface to be cleaned in the user's home, such as melon seeds, fruit peels, fruit cores, paper scraps, etc. When the cleaning machine 10 cleans the above-mentioned large-particle dirt, the above-mentioned large particles may be clamped between the dirt suction port 220 and the cleaning member 210; therefore, the above-mentioned residual dirt also includes large-particle dirt that is not easily absorbed into the sewage bucket 120 and is clamped between the dirt suction port 220 and the cleaning member 210.

[0043] In addition, in practice, there will also be dirt such as hair in the user's home. When cleaning the hair, the hair is easily caught between the cleaning member 210 and the comb tooth scraping bar, or hangs on the comb tooth scraping bar and cannot be absorbed into the sewage bucket 120; therefore, the above-mentioned residual dirt also includes the dirt caught between the cleaning member 210 and the comb tooth scraping bar and the dirt hanging on the comb tooth scraping bar.

[0044] When the cleaning machine 10 is placed on the base 20 for self-cleaning, in order to improve the self-cleaning effect, the cleaning member 210 usually rotates in the reverse direction, that is, rotates in the Figure 4 R1 direction in the figure. During the reverse rotation of the cleaning member 210, the above-mentioned residual dirt will be lifted up and flung in the H1 direction away from the dirt suction port 220 as the cleaning member 210 rotates. These dirt may eventually be flung onto the base 20, and the position of the residual dirt on the base 20 is far from the cleanable area of the cleaning member 210; when the residual dirt is far from the cleanable area, the dirt flung off when the cleaning member 210 rotates forward cannot move towards the dirt suction port 220 with the cleaning member 210 and finally enter the dirt suction port 220, which results in residual dirt on the base 20 when the self-cleaning operation of the cleaning member 210 ends, and the user needs to manually clean the residual dirt, greatly affecting the user experience. To solve the above technical problems, this embodiment provides a self-cleaning control method for a surface cleaning device 1 that cleans the cleaning member 210. The above method is executed by a control unit, and the method will be described below. Among them, for the convenience of description, the method will be briefly referred to as the self-cleaning control method hereinafter.

[0045] As Figure 5 shown, the self-cleaning control method in this embodiment at least includes the following cleaning stage S20.

[0046] Cleaning stage S20: During the first cleaning cycle and the second cleaning cycle, control the cleaning member 210 to alternately perform forward rotation and reverse rotation; wherein, the first speed of the reverse rotation of the cleaning member 210 in the first cleaning cycle is less than the second speed of the reverse rotation of the cleaning member 210 in the second cleaning cycle.

[0047] In this embodiment, the cleaning stage S20 includes a first cleaning cycle and a second cleaning cycle. The cleaning member 210 is cleaned in both cleaning cycles to improve the cleaning effect of the cleaning member 210. Specifically, in the first cleaning cycle and the second cleaning cycle, the control unit controls the cleaning member 210 to alternately perform forward rotation and reverse rotation. That is, in the first cleaning cycle and the second cleaning cycle, the control unit can first control the cleaning member 210 to rotate in the forward direction and the reverse direction. Figure 4 The cleaning element 210 rotates in the reverse direction of R1 for a period of time, and then controls the cleaning element 210 to rotate in the reverse direction of R1 for a period of time. Figure 4 The cleaning element 210 rotates in the positive direction R2 for a period of time, and then controls the cleaning element 210 to rotate in the positive direction R2. Figure 4 Alternatively, during the first cleaning cycle and the second cleaning cycle, the control unit may first control the cleaning element 210 to rotate in the R1 direction in the reverse direction for a period of time, and the cycle is repeated continuously; Figure 4 The cleaning element 210 rotates in the positive direction R2 for a period of time, and then controls the cleaning element 210 to rotate in the positive direction R2. Figure 4 The cleaning element 210 rotates in the reverse direction of R1 for a period of time, and then controls the cleaning element 210 to rotate in the reverse direction of R1 for a period of time. Figure 4 The cleaning member 210 rotates forward in the R2 direction for a period of time, and the cycle repeats continuously. In each cleaning cycle, the scraping strip 240 can scrape the cleaning member 210 during the forward rotation of the cleaning member 210, scrape off part of the dirt adhering to the bristles 212 and make it enter the sewage bucket 120 through the dirt suction port 220; however, due to the interference fit between the cleaning member 210 and the scraping strip 240, the bristles 212 of the cleaning member 210 will be squeezed in one direction and then fall down during the forward rotation of the cleaning member 210. When the bristles 212 fall down, the dirt adhering to the roots of the bristles 212 cannot be effectively cleaned. Therefore, in this embodiment, in each cleaning cycle, the cleaning member 210 is controlled to rotate in the reverse direction, and the bristles 212 are erected by utilizing the interference fit between the cleaning member 210 and the scraping strip 240, and the roots of the bristles 212 are effectively cleaned. By making the cleaning member 210 rotate alternately in the forward and reverse directions, the cleaning effect of the cleaning member 210 is improved. When the cleaning element 210 is subjected to a self-cleaning operation, a first cleaning cycle is first performed, and a second cleaning cycle is then performed after the first cleaning cycle is completed.

[0048] In this embodiment, during the first cleaning cycle, the cleaning member 210 is controlled to rotate reversely at a slower speed. After the cleaning machine 10 completes the cleaning operation, there are residual dirt inside it. When the cleaning member 210 rotates reversely at a slower speed, the residual dirt inside the cleaning machine 10 is not easily lifted, nor is it easily flung away from the dirt suction port 220 as the cleaning member 210 rotates. When the cleaning member 210 rotates forward, it can cooperate with the dirt suction element 130 to send the residual dirt into the sewage bucket 120 through the dirt suction pipeline. Alternatively, the residual dirt inside the cleaning member 210 will be lifted and flung away from the dirt suction port 220 in the H1 direction as the cleaning member 210 rotates, but finally the position of the residual dirt on the base 20 is within the cleanable area of the cleaning member 210. When the residual dirt is within the above-mentioned cleanable area, during the forward rotation of the cleaning member 210, the dirt will move in the H2 direction closer to the dirt suction port 220 as the cleaning member 210 rotates, and finally enter the dirt suction port 220 and be sucked into the sewage bucket 120 under the suction of the dirt suction element 130. It can be seen from this that in this embodiment, controlling the cleaning member 210 to rotate reversely at a slower speed during the first cleaning cycle is more conducive to removing the residual dirt and alleviates the occurrence of the situation where the residual dirt remains on the base 20.

[0049] Further, in this embodiment, during the second cleaning cycle, the cleaning member 210 is controlled to rotate reversely at a faster speed. Exemplarily, if the cleaning member 210 rotates reversely at the first speed V1 during the first cleaning cycle, then during the second cleaning cycle, the cleaning member 210 can be controlled to rotate reversely at the second speed V2; wherein, the second speed V2 is greater than the first speed V1.

[0050] During the first cleaning cycle, the residual dirt has been basically sucked into the sewage bucket 120; for this reason, even if the cleaning member 210 rotates at a faster speed during the second cleaning cycle, it is not easy to fling the residual dirt onto the base 20, and it is not easy for the situation of residual dirt on the base 20 to occur; at the same time, when the cleaning member 210 rotates at a faster speed, the scraping strip 240 can also scrape the dirt hidden at the root of the bristles 212 with a stronger scraping force, improving the cleaning effect on the cleaning member 210.

[0051] It should be noted that the first cleaning cycle and the second cleaning cycle in this application may include one or more sub-steps. Exemplarily, the first cleaning cycle includes sub-step a: the cleaning member 210 rotates forward at a speed of 500 r / min for 10 s; the cleaning member 210 rotates backward at a speed of 200 r / min for 8 s; step b: the cleaning member 210 rotates forward at a speed of 500 r / min for 10 s; the cleaning member 210 rotates backward at a speed of 200 r / min for 8 s. The second cleaning cycle includes sub-step A: the cleaning member 210 rotates forward at a speed of 500 r / min for 10 S; the cleaning member 210 rotates backward at a speed of 300 r / min for 8 S; step B: the cleaning member 210 rotates forward at a speed of 500 r / min for 10 S; the cleaning member 210 rotates backward at a speed of 300 r / min for 8 S. It should be noted that the number of sub-steps included in the first cleaning cycle and the second cleaning cycle may be the same or different.

[0052] It should be noted that: the rotational speed of the cleaning member 210 rotating forward in the first cleaning cycle and the second cleaning cycle may be the same or different, and no limitation is made here.

[0053] It should be noted that: when there are multiple forward and reverse alternating rotations in the first cleaning cycle and the second cleaning cycle, the time of each forward rotation, the time of reverse rotation, the speed of forward rotation, and the speed of reverse rotation may be the same or different, as long as the speed of reverse rotation in the first cleaning cycle is less than the speed of forward rotation in the second cleaning cycle.

[0054] Exemplarily, the first cleaning cycle includes sub-step a: the cleaning member 210 rotates forward at a speed of 600 r / min for 58 s, and the cleaning member 210 rotates backward at a speed of 300 r / min for 5 s. The second cleaning cycle includes sub-step A: the cleaning member 210 rotates forward at a speed of 580 r / min for 2 min, and the cleaning member 210 rotates backward at a speed of 350 r / min for 2 min.

[0055] Exemplarily, the first cleaning cycle includes sub-step a: the cleaning member 210 rotates forward at a speed of 500 r / min for 1 min, and the cleaning member 210 rotates backward at a speed of 300 r / min for 20 s. Sub-step b: the cleaning member 210 rotates forward at a speed of 550 r / min for 2 min, and the cleaning member 210 rotates backward at a speed of 280 r / min for 1 min. The second cleaning cycle includes sub-step A: the cleaning member 210 rotates forward at a speed of 550 r / min for 2 min, and the cleaning member 210 rotates backward at a speed of 350 r / min for 2 min.

[0056] In a possible implementation manner, within each cleaning cycle, the dirt suction element 130 may operate at a constant power to suction the dirt, or, within each cleaning cycle, the dirt suction element 130 may operate at a variable power to suction the dirt.

[0057] In a possible implementation, the dirt suction element 130 operates at a first power P1 during the first cleaning cycle and at a second power P2 during the second cleaning cycle, where the first power P1 is greater than the second power P2. The first power P1 can be a constant value, or the first power P1 can be a value that changes over time. Similarly, the second power P2 can be a constant value, or the second power P2 can be a value that changes over time. Since there are large particle contaminants such as melon seed shells among the residual contaminants in the cleaning machine 10, such contaminants are not easily sucked into the sewage bucket 120. Therefore, during the first cleaning cycle, the dirt suction element 130 is controlled to operate at a high power, so that the dirt suction element 130 can suck the residual contaminants remaining in the cleaning machine 10 into the sewage bucket 120 as much as possible with a strong suction force, alleviating the situation where the residual contaminants are thrown onto the base 20 and remain on the base 20 when the cleaning element 210 rotates. When the second cleaning cycle is executed, the residual contaminants are basically cleaned. At this time, the dirt suction element 130 is controlled to operate at a lower power, which is beneficial to saving the energy consumption of the dirt suction element 130 and prolonging the operation duration of the dirt suction element 130. At the same time, when the dirt suction element 130 continuously operates at a high power, the dirt suction element 130 is prone to overheating and electrical damage. Therefore, during the second cleaning cycle, the dirt suction element 130 is controlled to operate at a lower power, which is beneficial to protecting the dirt suction element 130.

[0058] In a possible implementation, during the first cleaning cycle, the liquid supply element 230 can supply liquid intermittently or continuously; during the second cleaning cycle, the liquid supply element 230 can supply liquid intermittently or continuously. Exemplarily, a cleaning groove for accommodating the cleaning element 210 can be provided on the base 20, and the liquid supply element 230 can supply liquid to the cleaning element 210 or the cleaning groove. The liquid supplied by the liquid supply element 230 can infiltrate the cleaning element 210, making the cleaning element 210 in a wet state, which is beneficial for the dirt scraping strip 240 to scrape the dirt on the cleaning element 210. At the same time, when the liquid supply element 230 supplies liquid, the dirt on the cleaning element 210 will be mixed in the liquid, increasing the weight of the dirt, which is more beneficial for the dirt suction element 130 to absorb the dirt into the sewage bucket 120. Or, during the first cleaning cycle, the liquid supply element 230 does not supply liquid, and before the first cleaning cycle, an immersion step of supplying liquid to the cleaning element 210 or the base 20 is first executed to fully infiltrate the cleaning element 210 or store a part of the cleaning liquid on the base 20. During the second cleaning cycle, the liquid supply element 230 is started to supply liquid. Or, during the first cleaning cycle, the immersion step is first executed, the liquid supply amount is Q1 during the first cleaning cycle, and the liquid supply amount is Q2 during the second cleaning cycle, so that Q1 is less than Q2.

[0059] In a possible implementation, if the liquid supply amount of the liquid supply element 230 is large during the first cleaning cycle and there is still liquid remaining in the cleaning tank at the end of the first cleaning cycle, the liquid supply element 230 may not supply liquid during the second cleaning cycle.

[0060] In a possible implementation, during the first cleaning cycle and / or the second cleaning cycle, there may also be a pipeline cleaning step for cleaning the sewage suction pipeline; in the pipeline cleaning step, the sewage suction element 130 can operate at a variable power, so that the liquid in the cleaning tank is sucked into the sewage suction pipeline in the form of a liquid flow and reciprocates in the sewage suction pipeline to clean the sewage suction pipeline. Among them, the reciprocating movement of the liquid in the sewage suction pipeline means that the liquid flow moves a certain distance in the sewage suction pipeline in a direction away from the sewage suction port 220 and then moves in a direction close to the sewage suction port 220, and when it moves a certain distance in the direction close to the sewage suction port 220, it will move in a direction away from the sewage suction port 220 again.

[0061] Embodiment 2:

[0062] Based on the above Embodiment 1, this embodiment provides a self-cleaning control method, which includes the cleaning stage S20 in the above Embodiment 1, and in the cleaning stage S20 of this embodiment, the cleaning member 210 rotates a first angle each time it rotates in the reverse direction during the first cleaning cycle, and the cleaning member 210 rotates a second angle each time it rotates in the reverse direction during the second cleaning cycle. Among them, the first angle is less than the second angle.

[0063] It can be seen that in this embodiment, during the first cleaning cycle, the cleaning member 210 rotates in the reverse direction by a small angle; when the cleaning member 210 rotates in the reverse direction by a small angle, the residual dirt in the cleaning machine 10 is not easily lifted, nor is it easily flung away from the dirt suction port 220 as the cleaning member 210 rotates. Or, the residual dirt in the cleaning member 210 is lifted and flung in the H1 direction away from the dirt suction port 220 as the cleaning member 210 rotates, but finally the position of the residual dirt on the base 20 is within the cleanable area of the cleaning member 210. When the residual dirt is within the above-mentioned cleanable area, the dirt will move in the H2 direction closer to the dirt suction port 220 as the cleaning member 210 rotates in the forward direction and finally enters the dirt suction port 220; thus, it can be seen that in this embodiment, during the first cleaning cycle, the cleaning member 210 rotates in the reverse direction by a small angle, alleviating the occurrence of the situation where residual dirt remains on the base 20. Secondly, the dirt that is not collected in the sewage bucket 120 after cleaning the surface to be cleaned may be stuck in the roller brush cavity 260. By rotating the cleaning member 210 in the reverse direction, the dirt that may be stuck in the roller brush cavity 260 is loosened and then re-enters the dirt suction channel as the cleaning member 210 rotates in the forward direction. During the first cleaning cycle, the cleaning member 210 rotates in the reverse direction by a small angle, simultaneously achieving the loosening and cleaning of the dirt, the cleaning of the cleaning member 210, and reducing the probability of the cleaning member 210 flinging garbage forward.

[0064] Further, in this embodiment, during the second cleaning cycle, the cleaning member 210 can rotate by a larger angle when rotating in the reverse direction. Since the residual dirt in the cleaning machine 10 is basically cleaned during the first cleaning cycle, when the cleaning member 210 rotates by a larger angle in the reverse direction during the second cleaning cycle, it is not easy to fling the residual dirt onto the base 20, and the situation of residual dirt on the base 20 is not likely to occur; at the same time, when the cleaning member 210 rotates by a larger angle in the reverse direction, the scraping strip 240 can also comprehensively scrape the roots of the bristles 212 of the cleaning member 210, and it is not easy to have missed areas, improving the cleaning effect on the cleaning member 210. Exemplarily, the cleaning member 210 rotates by 30° in the reverse direction during the first cleaning cycle and rotates by 180° in the reverse direction during the second cleaning cycle.

[0065] Optionally, in this embodiment, the forward rotation of the cleaning member 210 during the first cleaning cycle can be continuous rotation or small-angle intermittent rotation, and the forward rotation of the cleaning member 210 during the second cleaning cycle can be continuous rotation or small-angle intermittent rotation.

[0066] Optionally, to ensure the circumferential uniformity of the cleaning member 210 during the self-cleaning process, when the cleaning member 210 rotates intermittently at a small angle, the small-angle intermittent rotation can be continuously performed multiple times. Exemplarily: The first cleaning cycle and / or the second cleaning cycle includes: the cleaning member 210 continuously rotates forward for 1 min, the cleaning member 210 rotates backward by 120°, the cleaning member 210 stops rotating for 5 s, the cleaning member 210 stops rotating for 5 s after rotating backward by 120°, the cleaning member 210 stops rotating for 5 s after rotating backward by 120°; the cleaning member 210 continuously rotates forward for 1 min...... Or, the first cleaning cycle and / or the second cleaning cycle includes: the cleaning member 210 continuously rotates forward for 1 min, rotates backward by 120°, continuously rotates forward for 1 min, rotates backward by 120°......

[0067] In a possible implementation, the reverse rotation of the cleaning member 210 during the first cleaning cycle is intermittent reverse rotation. That is, the cleaning member 210 continuously rotates backward by a first angle and then stops rotating. After the stop time reaches a preset duration, it continuously rotates backward by the first angle again, and the above process is continuously repeated until the total rotation angle of the cleaning member 210 reaches a set value, or the total duration of the rotation and stop rotation of the cleaning member 210 reaches a preset duration, causing the cleaning member 210 to rotate forward. At the same time, the reverse rotation of the cleaning member 210 during the second cleaning cycle is continuous rotation. Wherein, the specific value of the first angle of each rotation during the intermittent rotation can be the same or different. For example, sometimes the first angle can be 5°, and sometimes the first angle can be 10°, etc.

[0068] As described in the above embodiments, when the cleaning member 210 cleans the surface to be cleaned, large particulate contaminants such as melon seed shells are easily clamped between the dirt suction port 220 and the cleaning member 210. Further, when the cleaning member 210 cleans the surface to be cleaned, it mainly wipes the surface to be cleaned in a forward rotation manner. From this, it can be seen that when the cleaning member 210 rotates forward, the contaminants clamped between the dirt suction port 220 and the cleaning member 210 are not easily loosened, but will continue to be clamped between the cleaning member 210 and the dirt suction port 220; for this reason, the cleaning member 210 is intermittently reversely rotated at a small angle during the first cleaning cycle to gradually loosen the large particulate contaminants clamped between the dirt suction port 220 and the cleaning member 210; the loosened contaminants may continue to be located between the dirt suction port 220 and the cleaning member 210, or the loosened contaminants will be lifted up and move away from the dirt suction port 220 as the cleaning member 210 rotates reversely, and finally fall within the cleanable area of the cleaning member 210 on the base 20; when the cleaning member 210 rotates forward, it cooperates with the dirt suction element 130 to suck the loosened large particulate contaminants into the sewage bucket 120 through the dirt suction pipe. At this time, it can be seen that when the cleaning member 210 intermittently reversely rotates at a small angle during the first cleaning cycle, it is more conducive to removing the large particulate contaminants clamped between the cleaning member 210 and the dirt suction port 220; it can also alleviate the occurrence of residual contaminants remaining on the base 20.

[0069] Further, after the first cleaning cycle, the residual contaminants are basically removed. During the second cleaning cycle, the cleaning member 210 is continuously reversed, so that the dirt scraping strip 240 can comprehensively and thoroughly scrape the roots of the bristles 212 of the cleaning member 210, peeling off the contaminants hidden inside the bristles 212 and improving the cleaning effect on the cleaning member 210.

[0070] In a possible implementation manner, during the first cleaning cycle, the reverse rotation of the cleaning member 210 is intermittent reverse rotation; during the first cleaning cycle, the forward rotation of the cleaning member 210 is intermittent forward rotation.

[0071] Among them, the specific rotation mode of the intermittent reverse rotation of the cleaning member 210 during the first cleaning cycle is as described in the above embodiments and will not be elaborated here. The specific rotation mode of the intermittent forward rotation of the cleaning member 210 during the first cleaning cycle is that the cleaning member 210 stops rotating after rotating forward by a third angle, or it can also be that the cleaning member 210 stops rotating for a preset duration after rotating forward by a third angle and then rotates forward by a third angle until the total forward rotation duration reaches the preset duration, or the total forward rotation angle or number of turns reaches the preset value. Among them, the specific value of the third angle for each rotation during intermittent rotation can be the same or different. For example, sometimes the third angle can be 5°, and sometimes the first angle can be 10°, etc.

[0072] During the first cleaning cycle, the small-angle intermittent reverse rotation of the cleaning member 210 can loosen large-particle dirt clamped between the cleaning member 210 and the dirt suction port 220. After the dirt is loosened, if the cleaning member 210 rotates at a relatively large angle and / or at a relatively fast speed during the forward rotation, it is easy for the large-particle dirt that has been loosened and remains between the cleaning member 210 and the dirt suction port 220 to be stuck again between the cleaning member 210 and the dirt suction port 220. Therefore, in this embodiment, during the second cleaning cycle, the cleaning member 210 rotates intermittently in a small angle in the forward direction, reducing the rotation angle and rotation speed of the cleaning member 210 during the forward rotation, alleviating the situation where the loosened dirt is stuck again between the cleaning member 210 and the dirt suction port 220, and facilitating the removal of large-particle dirt.

[0073] In a possible implementation manner, the forward rotation of the cleaning member 210 during the second cleaning cycle is continuous rotation, and the reverse rotation of the cleaning member 210 during the second cleaning cycle is continuous rotation. Exemplarily, the forward rotation of the cleaning member 210 can be continuous rotation with a rotation angle exceeding 360°, and the reverse rotation of the cleaning member 210 can be continuous rotation with a rotation angle exceeding 360°.

[0074] During the first cleaning cycle, the residual dirt has been basically removed. When the cleaning member 210 rotates continuously in the forward and reverse directions during the second cleaning cycle, the scraping strip 240 can repeatedly rub the bristles 212 of the cleaning member 210, that is, continuously perform scraping and hair combing operations, improving the cleaning effect on the cleaning member 210. At the same time, when the cleaning member 210 rotates continuously in the forward and reverse directions, it can also wipe the inner wall of the roller brush cavity 260 where the cleaning member 210 is located, improving the cleanliness of the inner wall of the roller brush cavity 260.

[0075] In a possible implementation manner, the reverse rotation of the cleaning member 210 during the first cleaning cycle is intermittent reverse rotation; the reverse rotation of the cleaning member 210 during the second cleaning cycle is also intermittent reverse rotation.

[0076] As Figure 6 shown, when the cleaning member 210 rotates in the reverse direction, the liquid will be flung in the H1 direction away from the dirt suction port 220, and the air outlet 21 for drying the cleaning member 210 on the base 20 is just far away from the dirt suction port 220. When the reverse rotation angle of the cleaning member 210 is too large, it is easy to fling the liquid into the base 20 through the air outlet 21 and damage the electrical components inside the base 20. Therefore, in this embodiment, the cleaning member 210 rotates intermittently in the reverse direction, reducing the probability of the liquid being flung into the base 20 and protecting the electrical components inside the base 20.

[0077] In a possible implementation, during the first cleaning cycle, the cleaning member 210 is controlled to rotate reversely first and then forwardly. When the self-cleaning operation starts, there are a lot of dirt around the dirt suction port 220 and on the inner wall of the roller brush chamber 260. Some of the dirt that has not been collected into the sewage bucket 120 is stuck in the roller brush chamber 260 and cannot be sent into the dirt suction channel by the forward rotation of the cleaning member 210. If the forward rotation is carried out first, not only the stuck dirt cannot be removed, but it will be more difficult to clean. Therefore, in the first cleaning cycle, the cleaning member 210 is first controlled to rotate reversely, and the force condition of the dirt in the roller brush chamber 260 is changed by changing the rotation direction of the cleaning member 210, so that it becomes loose or displaced and is easier to be cleaned. Secondly, the bristles 212 of the reversely rotating cleaning member 210 are combed up under the action of the dirt scraping strip 240, and can better contact with the components in the roller brush chamber 260 to wipe the roller brush chamber 260, improving the cleaning efficiency of the self-cleaning.

[0078] Furthermore, there are large-particle residual dirt clamped between the cleaning member 210 and the dirt suction port 220, and there is also dirt such as hair clamped between the cleaning member 210 and the dirt scraping strip 240. When the cleaning member 210 rotates forward first during the first cleaning cycle, it is easy to make the above-mentioned dirt be clamped more tightly between the corresponding components; for this reason, in this embodiment, by first making the cleaning member 210 rotate reversely to loosen the above-mentioned dirt, it is convenient for the cleaning member 210 to cooperate with the dirt suction element 130 during forward rotation to send the loosened dirt into the sewage bucket 120.

[0079] In an optional implementation, the surface cleaning device 1 has a normal self-cleaning mode and a deep self-cleaning mode. The normal self-cleaning mode has a first cleaning stage, and the deep self-cleaning mode has a second cleaning stage; the angle of a single continuous forward rotation of the cleaning member 210 in the first cleaning stage is greater than the angle of a single continuous forward rotation of the cleaning member 210 in the second cleaning stage; the angle of a single continuous reverse rotation of the cleaning member 210 in the first cleaning stage is greater than the angle of a single continuous reverse rotation of the cleaning member 210 in the second cleaning stage. Exemplarily: in the normal self-cleaning mode, the cleaning member 210 rotates forward and backward alternately, and the single rotation angle is greater than 360°. The deep self-cleaning mode includes a kneading cleaning step, in which the cleaning member 210 rotates forward and backward alternately, and the single rotation angle is less than 360°.

[0080] In the first cleaning stage, the cleaning member 210 is not rubbed at a small angle. The second cleaning stage at least includes rubbing the cleaning member 210 at a small angle, that is, after rubbing a specific area of the cleaning member 210, the cleaning member 210 is then controlled to rotate by a large angle to rub another area of the cleaning member 210; alternatively, the deep self-cleaning mode includes both the first cleaning stage and the second cleaning stage, and the cleaning member 210 is rubbed at a small angle in the second cleaning stage. It can be seen that the cleaning effect of the deep self-cleaning mode is higher than that of the ordinary self-cleaning mode. The user can select the corresponding self-cleaning mode according to the dirt adhered to the cleaning member 210. For example, when less dirt is adhered to the cleaning member 210, the ordinary self-cleaning mode can be selected to improve the cleaning efficiency while ensuring the cleaning effect; when more dirt is adhered to the cleaning member 210, the deep self-cleaning mode can be selected to ensure the cleaning effect of the cleaning member 210.

[0081] Embodiment 3:

[0082] Based on the above embodiments, this embodiment provides a self-cleaning control method. The self-cleaning control method includes the cleaning stage S20 in Embodiment 1 above, and the cleaning stage S20 in this embodiment further includes an unwinding step and a dirt suction step, which are described in detail below:

[0083] Unwinding step: Control the cleaning member 210 to alternately perform forward rotation and reverse rotation, and control the dirt suction element 130 to stop running.

[0084] Dirt suction step: Control the cleaning member 210 to alternately perform forward rotation and reverse rotation, and control the dirt suction element 130 to run.

[0085] Among them, the unwinding step is executed first, and the dirt suction step is executed after the unwinding step is completed. The above unwinding step and dirt suction step can be located within the first cleaning cycle, or can be located within the second cleaning cycle, or, as a separate cleaning step in the self-cleaning process, as the starting step of self-cleaning, or as a supplementary cleaning step when self-cleaning is about to end. The specific manner in which the cleaning member 210 alternately performs forward rotation and reverse rotation is as described in the above embodiments and will not be elaborated here.

[0086] In practice, after the cleaning machine 10 finishes the cleaning operation on the surface to be cleaned, hair will be wound around the cleaning member 210. At the same time, hair is also likely to be caught between the cleaning member 210 and the comb strip, and hair is also likely to hang on the comb strip. In this embodiment, at the beginning stage of self-cleaning, by performing the unwinding step, the cleaning member 210 rotates forward and backward alternately, and the sewage suction element 130 is not turned on, so that the hair wound around the cleaning member 210 is unwound, and the hair is rubbed into a ball to increase the weight of the hair. When the sewage suction step is performed, the sewage suction element 130 is turned on to absorb the balled hair into the sewage bucket 120. At the same time, there is some lightly soiled dirt on the cleaning member 210. In the unwinding step, the above-mentioned dirt can also be peeled off, so that the dirt accumulates together, and the peeled dirt is centrally absorbed into the sewage bucket 120 during the sewage suction step. It can be seen from this that in this embodiment, the problem that hair and lightly soiled dirt are not easily absorbed into the sewage bucket 120 is solved. Through the above steps, the hair wound around the cleaning member 210 is removed at the beginning stage of self-cleaning, and the problem that the cleaning effect of the cleaning member 210 is affected by the hair wound around the cleaning member 210 is solved.

[0087] In another embodiment of the present application, after performing the first cleaning cycle and the second cleaning cycle during the self-cleaning process, the unwinding step and the sewage suction step are then performed. During the first cleaning cycle and / or the second cleaning cycle, most of the winding objects wound around the cleaning member 210 can be unwound by the forward and reverse alternating rotation of the cleaning member 210. After the first cleaning cycle and the second cleaning cycle are completed, the unwinding step and the sewage suction step are performed to supplement the cleaning of the winding objects on the cleaning member 210. Optionally, the unwinding step and the sewage suction step are selectively executed steps, and are selectively executed according to whether there are winding objects on the cleaning member 210. Optionally, whether there are winding objects on the cleaning member 210 can be judged by the current or voltage of the driving member for driving the rotation of the cleaning member 210, or the pressure on the cleaning member 210, or image recognition, etc. Optionally, the liquid supply element 230 stops supplying liquid during the unwinding step and the sewage suction step, and the cleaning member 210 is simultaneously dried and / or dried during the unwinding step and the sewage suction step, shortening the self-cleaning duration and reducing the user's waiting time. On the other hand, a relatively dry cleaning member 210 is more likely to remove the winding objects.

[0088] Embodiment 4:

[0089] On the basis of the above embodiments, this embodiment provides a self-cleaning control method. The self-cleaning control method includes the cleaning stage S20 in Embodiment 1 above, and the self-cleaning control method in this embodiment further includes an immersion stage S10 before the cleaning stage S20. During the immersion stage, the liquid supply element 230 is controlled to supply liquid and the cleaning member 210 is controlled to rotate.

[0090] In this embodiment, when the self-cleaning operation is performed, the liquid supply element 230 supplies liquid to the cleaning element 210 or the cleaning tank. By supplying liquid, the cleaning element 210 is soaked, which is beneficial to the cleaning of the cleaning element 210 in the subsequent cleaning stage S20 and improves the cleaning effect of the cleaning element 210. However, in practice, some of the liquid supplied by the liquid supply element 230 will fall on the dirt scraping strip 240 and flow into the cleaning tank through both ends of the dirt scraping strip 240. Although the liquid can be collected in the cleaning tank in this way, the liquid will only be distributed in the two side areas of the cleaning tank, and there is less liquid gathering in the central area of the cleaning tank, resulting in uneven liquid distribution and poor soaking effect on the cleaning element 210. Therefore, in this embodiment, the cleaning element 210 is controlled to rotate in the soaking stage S10, which is beneficial to the uniform distribution of the liquid in the cleaning tank and improves the soaking effect on the cleaning element 210. Among them, the cleaning element 210 can rotate continuously at a low speed, or the cleaning element 210 can rotate intermittently in the soaking stage S10, so as to reduce the occurrence of the residual dirt in the cleaning machine 10 being lifted up due to the rotation of the cleaning element 210 and staying on the base 20.

[0091] In addition, in a possible implementation manner, cleaning liquid can also be supplied to the cleaning tank in the soaking stage S10. Exemplarily, a cleaning liquid supply element 230 can be provided on the base 20, and the cleaning liquid is supplied to the cleaning tank through the above-mentioned liquid supply element 230. The rotation of the cleaning element 210 in the soaking stage S10 is also beneficial to the mixing of the cleaning liquid.

[0092] In a possible implementation manner, since the liquid supply element 230 supplies liquid to the cleaning tank in the soaking stage S10, the water supply element may not supply liquid in the first cleaning cycle, and the cleaning element 210 is cleaned with the liquid in the cleaning tank; the liquid supply element 230 supplies liquid again in the second cleaning cycle.

[0093] In a possible implementation manner, the liquid supply element 230 can also supply liquid in the first cleaning cycle. However, since there is liquid supplied in the soaking stage S10 in the cleaning tank, the liquid supply amount in the first cleaning cycle needs to be less than that in the second cleaning cycle at this time.

[0094] In a possible implementation, a dirt detection element is provided on the cleaning machine 10 or the base 20. The dirt detection element can detect the degree of dirt on the cleaning member 210. The cleaning machine 10 is also provided with a current detection element for detecting the operating current of the target motor. When the cleaning machine 10 is placed on the base 20, the dirt detection element will detect the degree of dirt on the cleaning member 210, and at the same time, it will control the target motor to drive the cleaning member 210 to rotate. During the rotation of the cleaning member 210, the current detection element detects the operating current of the target motor. If the dirt detection element detects that the cleaning member 210 is relatively dirty and the operating current of the target motor is less than the first threshold, it is considered that the dirt on the cleaning member 210 is mainly colored sewage, such as soy sauce, etc. At this time, it is necessary to increase the soaking time of the cleaning member 210 and control the cleaning member 210 to rotate at a slower speed, such as controlling the cleaning member 210 to rotate at a speed of 150 r / min - 400 r / min, so as to fully soak the cleaning member 210 to achieve decolorization. If the dirt detection element detects that the cleaning member 210 is relatively dirty and the operating current of the target motor is greater than the first threshold, the dirt adhering to the cleaning member 210 is mainly small particle solid dust. At this time, the soaking time of the cleaning member 210 can be shortened, and the cleaning member 210 can be controlled to rotate at a faster speed, such as controlling the cleaning member 210 to rotate at a speed of 450 r / min - 600 r / min, so that the scraping strip 240 can peel off the dirt adhering to the cleaning member 210.

[0095] Embodiment Five:

[0096] Based on the above embodiments, this embodiment provides a self-cleaning control method. The self-cleaning control method includes the cleaning stage S20 in the first embodiment above, and also includes a sewage suction stage S30. In the sewage suction stage S30, the sewage suction element 130 is controlled to operate at a target power. Among them, the target power is greater than the working power when the cleaning machine 10 performs a cleaning operation on the surface to be cleaned. In the sewage suction stage S30, the cleaning member 210 can rotate forward, or the cleaning member 210 can not rotate.

[0097] In one implementation, the sewage suction stage S30 is located before the cleaning stage S20. When the self-cleaning control method includes the soaking stage S10, the sewage suction stage S30 is located between the soaking stage S10 and the cleaning stage S20. As described in the above embodiments, there are residual dirt in the cleaning machine 10. When the cleaning member 210 rotates in the reverse direction during the execution of the cleaning stage S30, it is easy to cause the residual dirt to be thrown out and left on the base 20. In this embodiment, before the cleaning stage S20, the sewage suction element 130 is made to work to absorb the residual dirt into the sewage bucket 120 as much as possible, alleviating the occurrence of the situation where the residual dirt is left on the base 20.

[0098] Further, there are large particulate contaminants in the residual contaminants that are not easily absorbed into the sewage bucket 120. At the same time, when the cleaning machine 10 is on the base 20, the body 100 is in an upright state. The inclination angle between the body 100 and the floor brush 200 is smaller than the inclination angle between the body 100 and the floor brush 200 when cleaning the surface to be cleaned, and the sewage bucket 120 is farther away from the floor brush 200. In summary, the suction element 130 needs to operate at a greater power to absorb the residual contaminants into the sewage bucket 120 as much as possible. For this reason, in this embodiment, when the cleaning machine 10 is placed on the base 20, the suction element 130 is operated at a target power greater than the working power to absorb the residual contaminants into the sewage bucket 120 as much as possible.

[0099] In another implementation, the suction stage S30 can be located after the cleaning stage S20. After the cleaning stage is completed, there may still be some contaminants in the cleaning tank, the suction port 220, and the suction pipeline that have not been absorbed into the sewage bucket 120 in time. In the suction stage S30, the suction element 130 is controlled to operate to absorb the above-mentioned contaminants into the sewage bucket 120 to improve the cleaning effect.

[0100] Embodiment Six:

[0101] In this embodiment, a front squeegee 270 is floatingly installed on the front side of the cleaning member 210 on the floor brush 200, where the front side refers to the front side of the front squeegee 270 relative to the cleaning member 210 from the perspective of the user in the use state of the cleaning machine 10. When cleaning the surface to be cleaned, the front squeegee 270 has a first position in contact with the surface to be cleaned and a second position separated from the surface to be cleaned, as Figure 7 shown, which is a schematic diagram of the front squeegee 270 in the second position. When performing the self-cleaning control method mentioned in the above embodiment, the front squeegee 270 has a cleaning state in which it fits with the cleaning member 210.

[0102] When the surface to be cleaned is the ground and the cleaning machine 10 cleans the corners of the ground, the front squeegee 270 can be in contact with the ground at the first position, so that a relatively sealed space is formed among the front squeegee 270, the ground and the cleaning member 210, which is convenient for sucking the dirt at the corners. The front squeegee 270 has a target surface facing the cleaning member 210; during the process of sucking the dirt, the dirt is likely to adhere to the above-mentioned target surface, or when the cleaning member 210 rotates to clean the corners, the dirt adhered to the cleaning member 210 is likely to adhere to the above-mentioned target surface. Therefore, in this embodiment, when performing the self-cleaning control method mentioned in the above embodiment, the front squeegee 270 is abutted against the surface of the base 20, and the front squeegee 270 is attached to the cleaning member 210. After the attachment is completed, the cleaning member 210 is controlled to rotate to wipe the above-mentioned target surface, so as to wipe off the dirt adhered to the target surface and improve the cleanliness of the front squeegee 270. At the same time, when performing the self-cleaning control method, when the front squeegee 270 is abutted against the surface of the base 20, it can also isolate the cleaning member 210 and the air outlet 21, reducing the situation that the liquid is thrown into the base 20 through the air outlet 21 when the cleaning member 210 rotates at a high speed, and protecting the electrical components in the base 20.

[0103] In a possible implementation manner, as Figure 6 shown, the cleaning member 210 is movably installed on the cleaning machine 10. When performing the self-cleaning control method, the cleaning member 210 can be controlled to move a preset distance in the H1 direction close to the front squeegee 270, so that the cleaning member 210 is attached to the target surface of the front squeegee 270; wherein, when the cleaning member 210 moves in the H1 direction, it can move in a straight line or a curve.

[0104] In a possible implementation manner, as Figure 6 shown, the front squeegee 270 is pivotally installed on the floor brush 200, and the front squeegee 270 can be controlled to rotate a preset angle in the E1 direction close to the cleaning member 210, so that the cleaning member 210 is attached to the target surface of the front squeegee 270.

[0105] In a possible implementation manner, as Figure 6 shown, the front squeegee 270 is installed on the floor brush 200 through a movable upper cover 271. The upper cover 271 is controlled to move in the H2 direction close to the cleaning member 210. After the upper cover 271 moves, the front squeegee 270 is also driven to move in the H2 direction close to the cleaning member 210. After moving a preset distance, the cleaning member 210 is attached to the front squeegee 270.

[0106] In a possible implementation, the cleaning member 210 can be controlled to rotate in the reverse direction so that the scraping strip 240 combs up the bristles 212 of the cleaning member 210, and after the bristles 212 are combed up, the bristles 212 of the cleaning member 210 are in contact with the front scraping strip 270.

[0107] In several embodiments provided by the present application, the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architectures, functions, and operations of devices, methods, and computer program products according to multiple embodiments of the present application. In this regard, each block in the flowchart or block diagram may represent a module, a program segment, or a part of code, and the module, program segment, or part of code contains one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than marked in the accompanying drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, as well as the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0108] In addition, in each embodiment of the present application, the various functional modules can be integrated together to form an independent part, or each module can exist separately, or two or more modules can be integrated to form an independent part.

[0109] If the function is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods in each embodiment of the present application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical discs that can store program codes.

Claims

1. A self-cleaning control method for a surface cleaning device, the surface cleaning device comprising a cleaning machine and a base, the cleaning machine comprising a cleaning member, characterized in that, The surface cleaning device has a self-cleaning control method for cleaning the cleaning member. The self-cleaning control method includes a cleaning stage, and the cleaning stage at least includes a first cleaning cycle and a second cleaning cycle. During the first cleaning cycle and the second cleaning cycle, the cleaning member is controlled to alternately perform forward rotation and reverse rotation. Among them, the first speed of the reverse rotation of the cleaning member during the first cleaning cycle is less than the second speed of the reverse rotation of the cleaning member during the second cleaning cycle.

2. The self-cleaning control method of the surface cleaning device according to claim 1, characterized in that, During the first cleaning cycle and the second cleaning cycle, the reverse rotation of the cleaning member is intermittent reverse rotation, and the first angle of the reverse rotation of the cleaning member during the first cleaning cycle is less than the second angle of the reverse rotation of the cleaning member during the second cleaning cycle.

3. The self-cleaning control method of the surface cleaning device according to claim 1, wherein During the first cleaning cycle, the reverse rotation of the cleaning member is intermittent reverse rotation, and during the second cleaning cycle, the reverse rotation of the cleaning member is continuous reverse rotation.

4. The self-cleaning control method of the surface cleaning device according to claim 1, characterized in that During the first cleaning cycle, the reverse rotation of the cleaning member is intermittent reverse rotation, and during the first cleaning cycle, the forward rotation of the cleaning member is intermittent forward rotation.

5. The self-cleaning control method of the surface cleaning device according to claim 1, characterized in that, During the first cleaning cycle, the cleaning member is controlled to first rotate reversely and then rotate forwardly.

6. The self-cleaning control method of the surface cleaning device according to claim 1, characterized in that, The surface cleaning device further includes a dirt suction element, and the cleaning stage further includes: Unwinding step: controlling the cleaning member to alternately perform the forward rotation and the reverse rotation, and controlling the dirt suction element to stop operating; Dirt suction step: controlling the cleaning member to alternately perform the forward rotation and the reverse rotation, and controlling the dirt suction element to operate.

7. The self-cleaning control method of the surface cleaning device according to any one of claims 1-6, characterized in that, The cleaning machine further includes a liquid supply element. The control method of the surface cleaning device further includes a soaking stage before the cleaning stage. During the soaking stage, the liquid supply element is controlled to supply liquid and the cleaning member is controlled to rotate.

8. The self-cleaning control method of the surface cleaning device according to any one of claims 1-6, characterized in that, The cleaning machine further includes a dirt suction element. The control method of the surface cleaning device further includes a dirt suction stage. During the dirt suction stage, the dirt suction element is controlled to operate at a target power. Among them, the target power is greater than the working power when the cleaning machine performs a cleaning operation on the surface to be cleaned.

9. The self-cleaning control method of the surface cleaning device according to claim 1, characterized in that A floating front squeegee is provided on the cleaning machine. When cleaning the surface to be cleaned, the front squeegee has a first position in contact with the surface to be cleaned and a second position separated from the surface to be cleaned. When performing self-cleaning, the front squeegee has a cleaning state in contact with the cleaning member, and the front squeegee is wiped by the rotation of the cleaning member.

10. The self-cleaning control method of the surface cleaning device according to claim 9, characterized in that, The cleaning member is movably mounted on the cleaning machine, and the cleaning member moves in a direction close to the front squeegee to be in contact with the front squeegee; or, the front squeegee is pivotally mounted on the cleaning machine, and the front squeegee rotates in a direction close to the cleaning member to be in contact with the cleaning member; or, the front squeegee is mounted on the cleaning machine through a movable upper cover, and the movable upper cover drives the front squeegee to move in a direction close to the cleaning member to be in contact with the cleaning member.

Images