Self-cleaning method of surface cleaning equipment

Abstract

The invention provides a self-cleaning method of surface cleaning equipment. The self-cleaning method comprises the steps that the surface cleaning equipment obtains a signal for conducting self-cleaning on a stirring piece of the surface cleaning equipment; judging whether the surface cleaning equipment stops on the base or not; performing self-inspection on the surface cleaning equipment and the base to obtain the current states of the surface cleaning equipment and the base; according to the state of the surface cleaning equipment, whether the surface cleaning equipment meets a first preset condition or not is judged; according to the base state, whether the base meets a second preset condition or not is judged; and when the surface cleaning equipment meets the first preset condition and the base meets the second preset condition, the stirring piece of the surface cleaning equipment is allowed to be subjected to self-cleaning treatment, and self-cleaning circulation is started.

Description

Technical Field

[0001] The present disclosure relates to a self-cleaning method for a surface cleaning device. Background Art

[0002] Conventional floor cleaners clean the floor with a high flow of cleaning liquid in such a way that the floor to be cleaned is completely wetted. By wetting the hard floor surface, the cleaning head transfers dust from the floor into the cleaning liquid, which is then removed from the hard floor surface and retained in a recovery storage as contaminated cleaning liquid.

[0003] A wet surface cleaner generally includes: a cleaning solution storage portion for containing a cleaning solution; a recovery storage portion for recovering pollutants recovered from the cleaned floor; a motor-driven vacuum source to form a vacuum flow path from the cleaned floor to the recovery storage portion; a rechargeable battery to provide energy for each component; and a base station for charging and post-cleaning maintenance of the wet surface cleaner.

[0004] In the prior art, in order to prevent the stirring element from stinking, heating and drying are adopted after the self-cleaning process to make the stirring element dry. In order to achieve thorough drying of the stirring element, a lot of time is needed. For example, in a certain product, it takes at least half an hour to dry the stirring element, and the user experience is poor.

[0005] On the other hand, even if the recycling storage part is cleaned, it is easy to stink if left for a long time, resulting in a poor user experience.

[0006] Adding a detergent with a bactericidal function to the clean water tank can effectively inhibit the spread of bacteria in the stirring element and the recovery storage part, and can achieve a better deodorization effect. However, the user needs to add it manually every time, and sometimes forgets to add the detergent, which is very inconvenient. Summary of the invention

[0007] In order to solve one of the above technical problems, the present disclosure provides a self-cleaning method for a surface cleaning device.

[0008] According to one aspect of the present disclosure, there is provided a self-cleaning method for a surface cleaning device, comprising:

[0009] The surface cleaning device obtains a signal to self-clean a stirring member of the surface cleaning device;

[0010] Determine whether the surface cleaning device is docked at the base, and if the surface cleaning device is not docked at the base, dock the surface cleaning device at the base and then initiate a self-cleaning processing request;

[0011] When the surface cleaning device is docked on the base, a self-check is performed on the surface cleaning device and the base to obtain the current status of the surface cleaning device and the base;

[0012] According to the state of the surface cleaning device, determining whether the surface cleaning device satisfies a first preset condition; according to the state of the base, determining whether the base satisfies a second preset condition; and

[0013] When the surface cleaning device meets the first preset condition and the base meets the second preset condition, the stirring element of the surface cleaning device is allowed to be self-cleaned and a self-cleaning cycle is started;

[0014] Wherein, when the following conditions are met, it is judged that the surface cleaning device meets the first preset condition: the power of the surface cleaning device is greater than a preset value, the cleaning liquid storage part of the surface cleaning device is located in the surface cleaning device, the recovery storage part of the surface cleaning device is located in the surface cleaning device, and the amount of liquid in the recovery storage part is less than or equal to a preset value;

[0015] When the following condition is met, it is determined that the base meets the second preset condition: the content of the detergent in the detergent containing portion of the base can meet one self-cleaning cycle.

[0016] According to the self-cleaning method of a surface cleaning device according to at least one embodiment of the present disclosure, the self-cleaning cycle includes at least one washing cycle as follows:

[0017] controlling a first control element located in the base to provide detergent to at least one of the stirring member or the recessed portion at a preset flow rate for a preset time;

[0018] While the base provides detergent, controlling the stirring member of the surface cleaning device to rotate for a first preset time;

[0019] When the base finishes providing the detergent, controlling the stirring element of the surface cleaning device to rotate for a second preset time; and

[0020] The suction device is started to suck the mixture on the stirring element and the mixture around the stirring element to the recovery storage part of the surface cleaning equipment.

[0021] The self-cleaning method of a surface cleaning device according to at least one embodiment of the present disclosure further includes:

[0022] Determine whether a washing cycle has been started in the current self-cleaning cycle; if the washing cycle has been started, control the surface cleaning device to adjust operating parameters related to the self-cleaning mode after the washing cycle to reduce detergent on the stirring element.

[0023] According to the self-cleaning method of the surface cleaning device of at least one embodiment of the present disclosure, the operating parameters include at least one of the following:

[0024] The dehydration time of the stirring element, the flow rate of the cleaning liquid pump of the surface cleaning equipment, the power of the suction device of the surface cleaning equipment, and the rotation speed of the stirring element.

[0025] According to the self-cleaning method of a surface cleaning device according to at least one embodiment of the present disclosure, during the process of self-cleaning the agitator of the surface cleaning device, the base station stops charging the surface cleaning device.

[0026] According to the self-cleaning method of a surface cleaning device according to at least one embodiment of the present disclosure, during a washing cycle, when the surface cleaning device is removed from a base, the washing cycle is automatically stopped.

[0027] According to the self-cleaning method of a surface cleaning device according to at least one embodiment of the present disclosure, during a self-cleaning cycle, when the surface cleaning device is removed from the base, the self-cleaning cycle is automatically stopped.

[0028] According to the self-cleaning method of a surface cleaning device according to at least one embodiment of the present disclosure, the detergent contains a foaming component.

[0029] The self-cleaning method of a surface cleaning device according to at least one embodiment of the present disclosure further includes providing a defoaming agent to at least one of the agitating member of the surface cleaning device, the recessed portion of the base, and the recovery storage portion.

[0030] According to the self-cleaning method of the surface cleaning device of at least one embodiment of the present disclosure, the following steps are cyclically performed at least once within the first preset time: controlling the stirring element to rotate in the first direction, and / or controlling the stirring element to rotate in the second direction.

[0031] According to the self-cleaning method of the surface cleaning device of at least one embodiment of the present disclosure, controlling the stirring member to rotate for a second preset time includes:

[0032] The following steps are cyclically performed at least once during the second preset time: controlling the stirring member to rotate along the first direction and controlling the stirring member to rotate along the second direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0034] Figure 1 is a schematic structural diagram of a surface cleaning device according to an embodiment of the present disclosure.

[0035] Figure 2 It is a schematic structural diagram of a floor brush assembly according to one embodiment of the present disclosure.

[0036] Figure 3 It is a schematic diagram of the front structural view of a floor brush assembly according to one embodiment of the present disclosure.

[0037] Figure 4 It is a schematic diagram of the structure of a floor brush assembly viewed from above according to one embodiment of the present disclosure.

[0038] Figure 5 yes Figure 4 A magnified schematic diagram of part A.

[0039] Figure 6 is a schematic structural diagram of a nozzle according to one embodiment of the present disclosure.

[0040] Figure 7 It is a schematic cross-sectional structural diagram of a nozzle according to one embodiment of the present disclosure.

[0041] Figure 8 A schematic diagram of a surface cleaning apparatus according to one embodiment of the present disclosure is shown.

[0042] Fig. 9 A schematic diagram of a surface cleaning apparatus according to one embodiment of the present disclosure is shown.

[0043] Fig.10 A schematic diagram of a frame portion according to an embodiment of the present disclosure is shown.

[0044] Fig.11 It is a schematic structural diagram of a foam generator according to one embodiment of the present disclosure.

[0045] Fig.12 and Fig.13 It is a schematic structural diagram of a liquid pump according to one embodiment of the present disclosure.

[0046] Fig.14 is a schematic structural diagram of a mixing chamber according to an embodiment of the present disclosure.

[0047] Fig.15 It is a schematic structural diagram of a base according to an embodiment of the present disclosure.

[0048] Fig.16 It is a schematic diagram of a top view structure of a base according to an embodiment of the present disclosure.

[0049] Fig.17 It is a schematic diagram of the internal structure of a base according to an embodiment of the present disclosure.

[0050] Fig.18 It is a schematic structural diagram of a base according to another embodiment of the present disclosure.

[0051] Fig.19It is a schematic cross-sectional structural diagram of a base according to an embodiment of the present disclosure.

[0052] Fig. 20 is a flow chart of a self-cleaning method of a surface cleaning device according to one embodiment of the present disclosure.

[0053] The specific reference numerals in the figure are:

[0054] 100 handle part

[0055] 200 frame department

[0056] 300 Cleaning fluid storage unit

[0057] 400 Recycling Storage Department

[0058] 401 recovery pipeline

[0059] 500 connection

[0060] 600 floor brush assembly

[0061] 610 frame

[0062] 620 nozzle

[0063] 621 pipe connection

[0064] 630 stirring parts

[0065] 640 cover

[0066] 650 Nozzle

[0067] 651 First Subject

[0068] 652 Second Subject

[0069] 653 incision

[0070] 654 first installation part

[0071] 655 Second installation part

[0072] 670 Foaming agent storage unit

[0073] 680 cleaning fluid pump

[0074] 690 water outlet

[0075] 691 Wiper Strip

[0076] 692 Defoamer Storage Department

[0077] 693 Defoamer Pump

[0078] 694 sealed box

[0079] 800 Foam Generator

[0080] 810 Gas Pump

[0081] 820 Liquid Pump

[0082] 821 Extrusion Components

[0083] 822 hose

[0084] 830 Mixing Chamber

[0085] 831 First Entrance

[0086] 832 Second Entrance

[0087] 833 Mixing Chamber

[0088] 834 column filter

[0089] 840 drive unit

[0090] 900 base

[0091] 910 Cleaning Tray

[0092] 911 Depression

[0093] 912 air flow outlet

[0094] 913 wheel seat

[0095] 914 positioning unit

[0096] 915 Charging Station

[0097] 920 Detergent output terminal

[0098] 930 detergent storage unit

[0099] 940 lower housing

[0100] 950 raised part

[0101] 960 Defoamer container

[0102] 970 Defoamer output port. DETAILED DESCRIPTION

[0103] The present disclosure is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0104] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0105] Unless otherwise specified, the exemplary embodiments / embodiments shown will be understood as providing exemplary features of various details of some ways in which the technical concept of the present disclosure can be implemented in practice. Therefore, unless otherwise specified, the features of the various embodiments / embodiments can be combined, separated, interchanged and / or rearranged without departing from the technical concept of the present disclosure.

[0106] The use of cross-hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise specified, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the described order. In addition, the same figure numbers represent the same components.

[0107] When a component is referred to as being "on" or "over," "connected to," or "coupled to" another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being "directly on," "directly connected to," or "directly coupled to" another component, there are no intervening components. For this purpose, the term "connected" may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0108] For descriptive purposes, the present disclosure may use spatially relative terms such as "under," "beneath," "under," "down," "over," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, components described as "under" or "beneath" other components or features would subsequently be positioned "over" the other components or features. Thus, the exemplary term "under" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0109] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0110] Figure 1 is a schematic structural diagram of a surface cleaning device according to an embodiment of the present disclosure.

[0111] like Figure 1 As shown, the surface cleaning device of the present disclosure is used to clean a floor surface to be cleaned. Preferably, the surface cleaning device can perform wet cleaning on the floor surface to be cleaned, and recover the liquid after cleaning the floor surface to be cleaned to the surface cleaning device.

[0112] like Figure 1 As shown, structurally, the surface cleaning device may include a handle portion 100 , a frame portion 200 , a cleaning liquid storage portion 300 , a recovery storage portion 400 , a connection portion 500 , a floor brush assembly 600 and other components.

[0113] When the surface cleaning device of the present disclosure is in use, the floor brush assembly 600 is configured to be able to move on the floor surface to be cleaned, so as to perform wet cleaning on the floor surface to be cleaned by the floor brush assembly 600 .

[0114] The handle portion 100 is used to operate the surface cleaning device. More specifically, on the one hand, the operator can control the posture of the surface cleaning device by operating the handle portion 100. For example, when the frame portion 200 of the surface cleaning device is in an inclined state (i.e., at an angle of approximately 60° to the surface to be cleaned) or in a roughly flat state (i.e., roughly parallel to the surface to be cleaned), the surface cleaning device is in a cleaning mode; when the frame portion 200 of the surface cleaning device is in a vertical state, the surface cleaning device is in a stopped state, or when the surface cleaning device is in a base station, the frame portion 200 of the surface cleaning device is also roughly in a vertical state; on the other hand, physical buttons can be provided on the handle portion 100, so that the surface cleaning device can be controlled by these physical buttons, such as controlling the start and stop of the surface cleaning device and controlling the liquid supply speed and suction power of the surface cleaning device, so as to provide a better user experience of the surface cleaning device.

[0115] The handle portion 100 can be disposed at the upper end of the frame portion 200, so that the surface cleaning device can be operated by operating the handle portion 100. In the present disclosure, the frame portion 200 is formed as the main force-bearing structure of the surface cleaning device, and the cleaning liquid storage portion 300 and the recovery storage portion 400 of the surface cleaning device can be directly or indirectly fixed to the frame portion 200.

[0116] The cleaning liquid storage part 300 is formed in the shape of a box to store cleaning liquid in the cleaning liquid storage part 300. In one embodiment, the cleaning liquid can be purified water. Of course, those skilled in the art should know that a mixture of purified water and detergent can also be stored in the cleaning liquid storage part 300.

[0117] The frame portion 200 has a receiving space formed thereon, and the cleaning liquid storage portion 300 can be disposed in the receiving space so that a portion of the outer surface of the cleaning liquid storage portion 300 forms a portion of the outer surface of the surface cleaning device.

[0118] In the present disclosure, the cleaning liquid storage part 300 can be disassembled from the frame part 200 and filled with cleaning liquid manually by the user; of course, the cleaning liquid storage part 300 of the present disclosure can also realize the filling of the cleaning liquid of the cleaning liquid storage part 300 through the cleaning liquid interface set on the frame part 200.

[0119] Furthermore, when a cleaning liquid interface is provided on the frame portion 200 , the cleaning liquid storage portion 300 may be provided inside the frame portion 200 , and in this case, the cleaning liquid storage portion 300 does not form at least a part of the outer surface of the surface cleaning device.

[0120] In the present disclosure, in order to clean the surface to be cleaned, the cleaning liquid storage unit 300 is connected to the floor brush assembly 600 at least through a cleaning liquid pipeline, so as to provide cleaning liquid to the floor brush assembly 600. On the one hand, the surface to be cleaned can be directly cleaned by the cleaning liquid. On the other hand, the cleaning liquid can also be mixed with a detergent to form foam, and the surface to be cleaned can be cleaned by the foam.

[0121] like Figure 1 As shown, the frame portion 200 is formed with a accommodating space, and the recovery storage portion 400 is detachably arranged on the frame portion 200 and located in the accommodating space, so that when a large amount of liquid is stored in the recovery storage portion 400, the user can remove the recovery storage portion 400, pour out the sewage inside and clean up the solid waste. At this time, part of the outer surface of the recovery storage portion 400 forms part of the outer surface of the surface cleaning device.

[0122] In order to recycle the liquid after cleaning the surface to be cleaned, the recovery storage part 400 can be connected to the floor brush assembly 600 through the recovery pipe 401 , and accordingly, the mixture of sewage and gas (dirt) can be recovered to the recovery storage part 400 via the recovery pipe 401 .

[0123] Accordingly, the surface cleaning device further includes a suction device (not shown in the figure), wherein the suction device can generate negative pressure and provide the negative pressure to the recovery storage part 400, thereby realizing the forced flow of gas and sewage in the recovery pipeline 401. In the present disclosure, the gas discharged from the suction device can flow to the outside of the surface cleaning device through the gaps on the partial outer surface of the surface cleaning device.

[0124] The frame portion 200 is connected to the floor brush assembly 600 via the connecting portion 500, so that the frame portion 200 can be pivotally connected to the floor brush assembly 600. In the present disclosure, the frame portion 200 has at least two rotational degrees of freedom relative to the floor brush assembly 600, thereby enabling the user to operate the surface cleaning device more conveniently.

[0125] The structure of the floor brush assembly 600 is described in detail below with reference to the accompanying drawings.

[0126] Figure 2 It is a schematic structural diagram of a floor brush assembly according to one embodiment of the present disclosure.

[0127] In the present disclosure, the floor brush assembly 600 may include components such as a frame 610 , a suction nozzle 620 , a stirring member 630 , and a cover 640 .

[0128] The frame portion 610 is configured to be connected to the frame portion 200 through the connecting portion 500, and the frame portion 610 is adapted to move on the floor surface to be cleaned. For example, the frame portion 610 may include two rolling wheels. The frame portion 610 may define a receiving cavity for the floor brush assembly, and the receiving cavity is located in the front half of the floor brush assembly (with the movement direction of the surface cleaning device when cleaning the surface to be cleaned as the front), so as to accommodate the stirring member 630 in the receiving cavity, and accordingly, the stirring member 630 is also located in the front half of the floor brush assembly.

[0129] The frame portion 610 is formed with a suction nozzle 620. In the present disclosure, the suction nozzle 620 is disposed adjacent to the stirring member 630 and is located behind the stirring member 630. In the present disclosure, the suction nozzle 620 is connected to the recovery pipeline 401 and forms a starting point of the recovery path.

[0130] The stirring member 630 is configured to stir the floor surface to be cleaned; that is, when the surface cleaning device is performing a cleaning operation or a self-cleaning operation, the stirring member 630 can be driven by the motor to rotate, thereby, the stirring member 630 can be in frictional contact with the floor surface to be cleaned, and the floor surface to be cleaned can be cleaned. During the frictional contact between the stirring member 630 and the floor surface to be cleaned, cleaning liquid can be provided to the stirring member 630, thereby achieving wet cleaning of the floor surface to be cleaned.

[0131] The cover 640 is disposed on the frame portion 610 and is configured to partially surround the stirring member 630. In one embodiment, the cover 640 also forms a part of the accommodating cavity. In other words, the cover 640 and the frame portion 610 together form the accommodating cavity.

[0132] Figure 3 It is a schematic diagram of the front structural view of a floor brush assembly according to one embodiment of the present disclosure. Figure 4 It is a schematic diagram of the structure of a floor brush assembly viewed from above according to one embodiment of the present disclosure. Figure 5 yes Figure 4 An enlarged schematic diagram of part A.

[0133] More specifically, if Figure 4 As shown, the cover body 640 has at least a first edge and a second edge, wherein the second edge of the cover body 640 is an edge close to the frame body 610, and the first edge of the cover body 640 is an edge away from the frame body 610, thereby the first edge is formed as a free end.

[0134] More preferably, the first edge is arranged to be located above the horizontal plane passing through the rotation axis of the stirring member 630, so that there is a reasonable height between the first edge and the surface to be cleaned, thereby increasing the coverage area of ​​the foam sprayed by the nozzle.

[0135] The first edge has a roughly planar shape, and the nozzle 650 is installed on the cover body 640 and is located in the middle of the first edge, so that in the transverse direction (the transverse direction is a horizontal direction perpendicular to the front and rear direction), the nozzle 650 is in a central position, so that the nozzle 650 can spray foam on a fan-shaped radiation surface from the center to the edge.

[0136] Figure 6 is a schematic structural diagram of a nozzle according to one embodiment of the present disclosure. Figure 7 It is a schematic cross-sectional structural diagram of a nozzle according to one embodiment of the present disclosure.

[0137] like Figure 6 and Figure 7 As shown, the nozzle 650 can supply the cleaning foam generated by the foam generator 800 to the surface to be cleaned. That is, the foam generator 800 can generate high-pressure foam, and these high-pressure foams are ejected from the nozzle 650 at a high speed, so that the cleaning foam has a larger coverage area.

[0138] Structurally, the nozzle 650 includes a first body 651 and a second body 652 that are connected to each other; wherein the first body 651 and the second body 652 can be formed integrally or separately and installed or fixed together.

[0139] In this disclosure, Figure 6 and Figure 7 As shown, the first body 651 is formed as a hemispherical thin-walled part, so that the interior of the first body 651 is formed as a hemispherical buffer cavity, that is, the outer surface of the first body 651 is a hemispherical surface, and correspondingly, the inner surface of the first body 651 is a hemispherical surface, thereby making the first body 651 have a roughly uniform wall thickness as a whole.

[0140] At least part of the second body 652 is formed in a cylindrical shape. For example, one end of the second body 652 connected to the first body 651 is formed in a substantially cylindrical shape. In the present disclosure, preferably, the outer diameter (diameter) of the cylindrical portion of the second body 652 is the same as the diameter of the outer surface of the first body 651.

[0141] The second body 652 includes a delivery channel, the delivery channel is used to deliver cleaning foam, and the delivery channel is connected to the hemispherical buffer cavity; Figure 7 As shown, the delivery channel is formed in a cylindrical shape, and the inner diameter (diameter) of the delivery channel is the same as the diameter of the inner surface of the first body 651, so that the cleaning foam has as little resistance as possible during the delivery process.

[0142] like Figure 6 As shown, the nozzle 650 also includes a cutout 653, through which the cleaning foam is supplied to the surface to be cleaned; in a specific embodiment, the cutout 653 is configured to transversely penetrate the first body 651 and is connected to the hemispherical buffer cavity, so that after the cleaning foam leaves the cutout 653, a fan-shaped radiation surface is formed.

[0143] That is, when processing the cutout 653 of the first body 651, a groove of a certain width and depth can be cut from the vertex of the first body 651 toward the center of the sphere. When the nozzle 650 is installed on the cover 640, the cutout 653 can be kept in the lateral direction or substantially in the lateral direction.

[0144] In a more preferred embodiment, at least a portion of the cutout 653 extends to the second body 652 , that is, at least a portion of the second body 652 is formed with a groove, and the groove is formed as a portion of the cutout 653 .

[0145] At this time, the inner diameter of the delivery channel is smaller than the projected length of the cutout 653 on the cross section of the delivery channel, thereby enabling the cutout 653 to have a maximized foam radiation area.

[0146] In this disclosure, Figure 7 As shown, the conveying channel includes a circular channel outlet, and the projection center of the cutout 653 at the circular channel outlet passes through the center of the circular channel outlet, so that the cutout 653 is centrally arranged between the first body 651 and the second body 652.

[0147] When the foam generator 800 operates under the parameters of an air flow rate of 8.6 L / min and a detergent flow rate of 65 ml / min, the angle of the fan-shaped radiation surface is 10°-160°.

[0148] The diameter of the delivery channel is 2-3 mm, and accordingly, the diameter of the hemispherical buffer cavity is the same as the diameter of the delivery channel. At this time, the width W of the cutout 653 is 0.2-0.4 mm, that is, the width of the cutout 653 is between 6% and 20% of the diameter of the delivery channel.

[0149] Moreover, the depth L of the portion of the cutout 653 located in the second body 652 is 0.1-0.3 mm; that is, the depth of the portion of the cutout 653 located in the second body 652 is between 3% and 15% of the diameter of the delivery channel.

[0150] like Figure 6 and Figure 7 As shown, the nozzle 650 also includes a first mounting portion 654, which is used to connect to the foam generator 800; in one embodiment, the first mounting portion 654 is a plurality of annular barb-like structures formed on the outer surface of the second main body 652. At this time, the connection between the nozzle 650 and the foam supply pipeline can be achieved by inserting the second main body 652 into the interior of the foam supply pipeline. At this time, the other end of the foam supply pipeline can be connected to the foam outlet of the foam generator 800. Thus, the foam generator 800 and the nozzle 650 together constitute a foam dispenser, which is configured to dispense foam to at least one of the stirring member and / or the floor surface to be cleaned.

[0151] More preferably, the nozzle 650 further includes a second mounting portion 655 , which is formed as an ear extending outwardly from the outer surface of the second body 652 . Accordingly, the second mounting portion 655 is used to fix the nozzle 650 to the cover 640 of the floor brush assembly 600 .

[0152] Refer to Figure 5 When the floor brush assembly 600 moves along the surface (plane) to be cleaned, the nozzle 650 is perpendicular or approximately perpendicular to the surface to be cleaned. In other words, the plane where the cutout 653 is located is perpendicular or approximately perpendicular to the surface to be cleaned. Preferably, the distance between the nozzle 650 and the surface to be cleaned is approximately 15-30 mm, and the distance may vary depending on the length of the stirring member 630.

[0153] Figure 8 A schematic diagram of the internal structure of a floor brush assembly according to an embodiment of the present disclosure is shown.

[0154] like Figure 8 As shown, the floor brush assembly may further include a foaming agent storage unit 670, which is used to store the foaming agent. Further, the foaming agent stored in the foaming agent storage unit 670 can be mixed with air to generate cleaning foam through the foam generator 800. In one embodiment, the foaming agent can be a detergent or a liquid with a surfactant added.

[0155] The frame body 610 further defines a storage chamber, and the foaming agent storage portion 670 is disposed in the storage chamber. On the other hand, in the present disclosure, the foaming agent storage portion 670 may also be disposed in the frame portion 200 .

[0156] like Figure 8 As shown, a sealed box 694 is also provided in the accommodating chamber of the floor brush assembly 600 , and electronic components such as a control circuit board can be arranged in the sealed box 694 , thereby facilitating the connection between the control circuit board and the foam generator 800 , the cleaning liquid pump 680 and the defoaming agent pump 693 .

[0157] Fig. 9 A schematic diagram of a surface cleaning apparatus according to one embodiment of the present disclosure is shown.

[0158] like Fig. 9 As shown, the foaming agent storage portion 670 is connected to the nozzle 650 through the foam generator 800 , so that the foaming agent stored in the foaming agent storage portion 670 generates cleaning foam through the foam generator, and then is provided to the nozzle 650 and sprayed out from the nozzle 650 .

[0159] More preferably, the floor brush assembly 600 may further include a cleaning liquid pump 680, the cleaning liquid storage portion 300 is connected to the cleaning liquid pump 680, and the cleaning liquid pump 680 is connected to a water outlet bar 690 (also referred to as a liquid dispenser), thereby enabling the cleaning liquid stored in the cleaning liquid storage portion 300 to be pressurized by the cleaning liquid pump 680 and provided to the water outlet bar 690, and the pressurized cleaning liquid can be sprayed out from the water outlet bar 690, thereby providing the cleaning liquid to the stirring member 630 and / or the surface to be cleaned near the stirring member 630.

[0160] In the present disclosure, the water outlet strip 690 is arranged along the length direction of the stirring member 630 and is provided with at least one water outlet; preferably, the number of the water outlets is multiple, and the water outlets are arranged in at least one row along the length direction of the stirring member 630. In the present disclosure, the water outlet strip 690 can be arranged behind the stirring member 630, so that when the stirring member 630 rotates and cleans the surface to be cleaned, the cleaning liquid can be more fully wetted and dispersed on the surface of the stirring member 630 to improve the cleaning effect on the surface to be cleaned.

[0161] like Figure 4As shown, the floor brush assembly 600 may further include a wiper strip 691, which is disposed on the frame portion 610 and is located below the frame portion 610. Preferably, the wiper strip 691 is disposed behind the contact area between the stirring member 630 and the surface to be cleaned, so that the sewage on the surface to be cleaned can be collected in time and sucked into the recovery storage portion 400 through the suction nozzle 620.

[0162] In the present disclosure, the floor brush assembly 600 further includes a defoaming agent storage unit 692, and the defoaming agent storage unit 692 is used to store defoaming agents. That is to say, when the surface cleaning device of the present disclosure is in use, a mixture of sewage, foam, and air will enter the recovery storage unit 400. If these foams are not removed in time, these foams will accumulate in the recovery storage unit 400, and even overflow to the outside of the recovery storage unit 400, affecting the service life of the suction device; accordingly, in the present disclosure, the defoaming agent provided by the defoaming agent storage unit 692 can reduce the surface tension of the liquid in the recovery storage unit 400, reduce the amount of foam in the recovery storage unit 400, and even remove all the foam in the recovery storage unit 400.

[0163] The defoaming agent storage section 692 can be arranged in the storage chamber of the frame section 610. In the present disclosure, by arranging the foaming agent storage section 670 and the defoaming agent storage section 692 in the frame section 610, the center of gravity of the entire surface cleaning device can be lowered, making it easier for users to operate the surface cleaning device.

[0164] In the present disclosure, the defoaming agent storage part 692 is connected to the defoaming agent pump 693, and the defoaming agent pump 693 can provide the defoaming agent to the recovery pipeline 401 or the suction nozzle 620 and other components, so that the defoaming agent can be transported to the recovery storage part 400 by suction. On the other hand, the defoaming agent pump 693 can also be directly connected to the recovery storage part 400 to directly provide the defoaming agent to the recovery storage part 400.

[0165] Of course, the defoaming agent storage part 692 can also be directly connected to the recovery pipeline 401 or the suction nozzle 620 through the defoaming agent pipeline.

[0166] Fig.10 A schematic diagram of a frame portion according to an embodiment of the present disclosure is shown.

[0167] like Fig.10As shown, the frame portion 610 forms the suction nozzle 620. The suction nozzle 620 includes a transition chamber, one end of which is formed into an opening shape, so that the mixture of sewage, gas, foam, etc. enters the transition chamber through the opening of the transition chamber; accordingly, the other end of the transition chamber is connected to the recovery pipeline 401, so that the mixture of sewage, gas, foam, etc. can be recovered through the recovery pipeline 401.

[0168] In one embodiment, the cross section of the transition chamber (ie, the cross section perpendicular to the flow direction of the mixture) may be square, and its area may be gradually reduced, thereby facilitating the connection between the transition chamber and the recovery pipeline 401 .

[0169] The side wall of the suction nozzle 620 is provided with a pipe connection portion 621, the defoaming agent storage portion 692 is connected to one end of the defoaming agent pipeline, and the other end of the defoaming agent pipeline is connected to the pipe connection portion 621, so that the suction nozzle 620 can be fluidically connected to the defoaming agent storage portion 692. In a preferred embodiment, the pipe connection portion 621 is located on the upper wall surface of the suction nozzle 620, so that the installation and removal of the defoaming agent pipeline can be facilitated.

[0170] At this time, the defoaming agent pump 693 can be disposed in the defoaming agent pipeline, so that the defoaming agent is drawn out from the defoaming agent storage part 692 and then discharged to the suction nozzle 620 by positive pressure.

[0171] In another embodiment, the defoamer pipeline is not provided with a defoamer pump 693, but the defoamer in the defoamer storage part 692 is sucked into the suction nozzle 620 by the negative pressure suction force in the suction nozzle 620. Accordingly, a solenoid valve is provided on the defoamer pipeline, and when negative pressure is generated in the suction nozzle 620, the solenoid valve opens.

[0172] In the present disclosure, the defoaming agent storage part 692 also includes an open hole to allow air to enter the defoaming agent storage part 692 through the open hole, thereby balancing the internal and external pressure difference of the defoaming agent storage part 692, facilitating the suction of the defoaming agent pump 693 or facilitating negative pressure extraction.

[0173] The floor brush assembly of the present disclosure further includes a controller, which may be an electronic component disposed on the control circuit board. The controller is used to distribute the defoaming agent into the recovery storage part before the mixture reaches the recovery storage part, so that when the foam is sucked into the recovery storage part, it can be eliminated as soon as possible.

[0174] That is to say, when the surface to be cleaned is cleaned by foam, due to the presence of surfactants in the foam, a large amount of foam will be filled in the recovery storage part 400, which affects the water level detection of the recovery storage part 400 on the one hand, and also affects the gas-solid-liquid separation function of the recovery storage part 400 on the other hand.

[0175] Accordingly, if there is a defoaming agent inside the recovery storage part 400, it is not necessary to add the defoaming agent to the recovery storage part 400, or a small amount of the defoaming agent can be added. At this time, whether the recovery storage part 400 is disassembled from the surface cleaning device can be used as a start signal for adding the defoaming agent. For example, after the recovery storage part 400 is disassembled from the surface cleaning device, the user may pour out the sewage therein and clean the recovery storage part 400; when the cleaned recovery storage part 400 is installed again on the surface cleaning device, the defoaming agent needs to be added to the inside of the recovery storage part 400 as soon as possible.

[0176] During a cleaning operation, the controller can control the defoaming agent pump or the solenoid valve to start at least once, and each start-up works for a predetermined time, such as 1 second, to complete the addition of the defoaming agent.

[0177] The structure of the foam generator will be described in detail below with reference to the accompanying drawings.

[0178] Fig.11 It is a schematic structural diagram of a foam generator according to one embodiment of the present disclosure.

[0179] like Fig.11 As described above, the present disclosure provides a foam generator 800 , which includes a gas pump 810 , a liquid pump 820 , a mixing chamber 830 and other structures.

[0180] The gas pump 810 is connected to the atmosphere to directly inhale gas from the atmosphere and can provide gas to the mixing chamber 830 , for example, provide gas with a high flow rate.

[0181] In one embodiment, the gas pump 810 can be driven by a driving device 840 to generate high-flow gas. That is, the driving device 840 is transmission-connected to the gas pump 810, and when the driving device 840 is in a rotating state, the gas pump 810 can be in a working state and continuously output high-flow gas to the outside.

[0182] The gas pump 810 may be a centrifugal pump, a plunger pump, an impeller pump, a diaphragm pump or the like. The present disclosure does not limit the type of the gas pump 810 as long as the gas pump 810 can generate high-pressure gas.

[0183] Fig.12 and Fig.13It is a schematic structural diagram of a liquid pump according to one embodiment of the present disclosure.

[0184] like Fig.12 and Fig.13 As shown, the liquid pump 820 is connected to the supply tank for providing liquid.

[0185] The liquid pump 820 is preferably a peristaltic pump; Fig.13 The structure of a standardized peristaltic pump is shown. The extrusion component 821 can be driven to rotate. When the extrusion component 821 rotates, the hose 822 is squeezed to deform the hose 822 and realize the liquid transportation in the hose 822.

[0186] Those skilled in the art should know that the peristaltic pump is only a preferred implementation form; other liquid pumps, such as impeller pumps and plunger pumps, etc., may also be selected in the present disclosure.

[0187] Fig.14 is a schematic structural diagram of a mixing chamber according to an embodiment of the present disclosure.

[0188] like Fig.11 As shown, the gas pump 810 and the liquid pump 820 are both connected to the mixing chamber 830, and the mixing chamber 830 is capable of receiving the gas generated by the gas pump 810 and the liquid generated by the liquid pump 820; and the gas and liquid are mixed in the mixing chamber 830 to generate foam.

[0189] In a specific structure, such as Fig.14 As shown, the mixing chamber 830 includes a first inlet 831 , a second inlet 832 , a mixing chamber 833 and other structures.

[0190] The first inlet 831 is used to enter the liquid; in the present disclosure, the first inlet 831 can be connected to the liquid pump 820; the second inlet 832 is used to enter the gas; for example, the second inlet 832 is connected to the gas pump. The mixing chamber 833 is used to mix the liquid and the gas, wherein a preset angle is formed between the first inlet 831 and the second inlet 832; in a preferred embodiment, the first inlet 831 and the second inlet 832 are vertically distributed, for example Fig.14 As shown in the figure, the first inlet 831 is roughly horizontal, and the second inlet 832 is roughly vertical. At this time, the second inlet 832 is perpendicular or roughly perpendicular to the flow direction of the liquid in the mixing chamber 833. Such an arrangement can be more conducive to mixing gas into the liquid, thereby forming rich foam.

[0191] In a preferred embodiment, the mixing chamber 830 further includes a columnar filter 834, and the columnar filter 834 includes one or more elongated filter holes, and the mixture of gas and liquid is transported to the foam outlet through the elongated filter holes and discharged from the foam outlet.

[0192] In the present disclosure, the speed of foam output can be controlled by adjusting the rotation speed of the driving device.

[0193] The foam generator 800 of the present disclosure further includes a driving device 840, which is used to drive the gas pump 810 and the liquid pump 820, and thereby enables the gas pump 810 and the liquid pump 820 to be in a working state. In a preferred embodiment, the gas pump 810 and the liquid pump 820 are driven by the same driving device 840, and the gas pump 810 and the liquid pump 820 are located on the same side of the driving device 840.

[0194] Thus, the gas pump 810 and the liquid pump 820 are driven simultaneously by a driving device 840, and the problem of solution adhesion and failure to discharge can be solved by the setting of the peristaltic pump. The gas pump uses a diaphragm pump to achieve a small volume and a large flow rate, and the entire pump is small in size and low in cost. Moreover, the flow rate of the fluid can be significantly increased by the separate setting of the gas pump 810 and the liquid pump 820, so that the foam generator disclosed in the present invention significantly increases the flow rate of the fluid.

[0195] Fig.15 is a schematic structural diagram of a base 900 according to an embodiment of the present disclosure. Fig.16 It is a schematic diagram of a top view structure of a base according to an embodiment of the present disclosure. Fig.17 It is a schematic diagram of the internal structure of a base according to an embodiment of the present disclosure. Fig.18 It is a schematic structural diagram of a base according to another embodiment of the present disclosure. Fig.19 It is a schematic cross-sectional structural diagram of a base according to an embodiment of the present disclosure.

[0196] like Figures 15 to 19 As shown, the present disclosure further provides a base 900, which can be used to dock the surface cleaning device, charge the surface cleaning device or perform self-cleaning on the stirring member 630 of the surface cleaning device, etc. At this time, the base 900 and the surface cleaning device together constitute a surface cleaning system. That is, the present disclosure also provides a surface cleaning system, which can include the above-mentioned surface cleaning device and the base 900.

[0197] like Fig.15 The base 900 includes a cleaning tray 910 , a detergent output end 920 , a detergent receiving portion 930 and other components.

[0198] In the present disclosure, the cleaning tray 910 forms at least a portion of the upper surface of the base 900, and the cleaning tray 910 can be disposed in the lower shell portion 940 so that a cavity is provided between the cleaning tray 910 and the lower shell portion 940, and an air flow path for hot gas to pass through is formed in the cavity.

[0199] The cleaning tray 910 has a recessed portion 911, and the recessed portion 911 is configured to at least partially surround the stirring member 630 of the surface cleaning device; that is, when the surface cleaning device is docked on the base 900, its stirring member 630 can be located in the recessed portion 911, so that when cleaning liquid, detergent with disinfectant or defoaming agent and other objects are stored in the recessed portion 911, the stirring member 630 can contact the cleaning liquid, detergent with disinfectant or defoaming agent and other objects, thereby achieving the cleaning of the stirring member 630.

[0200] In one embodiment, the air flow outlet 912 of the air flow path is also provided on the cleaning tray 910 and is located above the recessed portion 911, so that the liquid in the recessed portion 911 will not enter the air flow path from the air flow outlet 912, and backflow of liquid is prevented.

[0201] The cleaning tray 910 also includes a wheel seat 913 configured to receive the rolling wheels of the surface cleaning device, so that when the surface cleaning device is docked on the base 900, the rolling wheels of the surface cleaning device can be located in the wheel seat 913, thereby achieving the positioning of the surface cleaning device on the base 900.

[0202] More preferably, the cleaning tray 910 further comprises a positioning portion 914 configured to position the stirring member 630 of the surface cleaning device, whereby when the surface cleaning device is docked on the base 900 , the positioning portion 914 can position the stirring member 630 by positioning a bracket holding the stirring member 630 .

[0203] The cleaning tray 910 also includes a charging base 915 configured to be inserted into a charging slot of the surface cleaning device, whereby the base 900 is capable of charging the surface cleaning device when the surface cleaning device is docked on the base 900.

[0204] The detergent output end 920 is configured to output detergent toward the recessed portion 911, and is configured to maintain a predetermined distance from the stirring member 630 of the surface cleaning device when the surface cleaning device is docked; thereby, detergent, especially detergent with disinfectant, can be added to the recessed portion 911 through the detergent output end 920, so that the stirring member 630 of the surface cleaning device can be cleaned by the detergent with disinfectant. On the one hand, the problem of odor generated by the stirring member 630 is effectively prevented. On the other hand, when the sewage after cleaning the stirring member 630 is sucked into the recovery storage section 400, the problem of odor generated in the recovery storage section 400 is also effectively prevented.

[0205] In one implementation, the detergent output end 920 can be formed in the form of a nozzle. For example, a through hole is opened at a corresponding position of the cleaning tray 910, and the nozzle is installed in the through hole. Part of the nozzle can extend from the through hole, thereby providing detergent to the recessed portion 911 through the nozzle.

[0206] In another implementation form, the detergent output end 920 may also be formed in the form of a hole, that is, a hole is opened at a corresponding position of the cleaning tray 910, and the detergent is provided to the recessed portion of the cleaning tray 910 through the hole.

[0207] The detergent holding portion 930 is used to store detergent, and the detergent is preferably a detergent with a disinfectant; in one embodiment, the detergent holding portion 930 is located inside the base 900; more preferably, the base 900 also includes a protrusion 950, which is formed by extending upward from the rear end of the cleaning tray 910, and the detergent holding portion 930 is located inside the protrusion 950.

[0208] The detergent containing portion 930 is connected to the detergent output end 920 via a detergent delivery pipeline. In one embodiment, a first control element is disposed on the detergent delivery pipeline. Preferably, the first control element is a peristaltic pump.

[0209] Thus, the first control element can quantitatively supply detergent to the recessed portion 911, and when the detergent is not needed, the first control element can cut off the detergent delivery pipeline. More preferably, after the self-cleaning process of the surface cleaning device is completed, the peristaltic pump can be controlled to reverse, so that the detergent in the detergent delivery pipeline is pumped into the detergent receiving portion 930, thereby preventing the detergent from solidifying in the detergent delivery pipeline and affecting the next use of the base 900.

[0210] In the present disclosure, after detergent is added to the recessed portion, a large amount of foam may be generated when the stirring element performs self-cleaning. Based on this, the base 900 of the present disclosure may also include a defoaming agent container 960, in which a defoaming agent is stored. Accordingly, the defoaming agent can also be provided to the recessed portion 911, thereby reducing the foam content in the recessed portion 911. Moreover, when the liquid in the recessed portion 911 is recovered to the recovery storage portion 400, the addition of the defoaming agent can also make the interior of the recovery storage portion 400 contain no foam or a small amount of foam, thereby not affecting the normal operation of the liquid level meter in the recovery storage portion 400.

[0211] In the present disclosure, the defoaming agent receiving portion 960 can also be located inside the protrusion 950. Moreover, the defoaming agent receiving portion 960 is connected to the defoaming agent output end 970 through a defoaming agent supply pipeline, and the defoaming agent output end 970 is configured to provide the defoaming agent toward the recessed portion 911.

[0212] In one embodiment, the structure of the defoaming agent output terminal 970 can be the same as that of the detergent output terminal 920, and can provide detergent or defoaming agent to different areas of the recessed portion 911; in another embodiment, the defoaming agent output terminal 970 and the detergent output terminal 920 can be realized by the same component, for example, by the same nozzle. In this case, the nozzle can provide both detergent and defoaming agent, and the detergent and defoaming agent can be provided simultaneously or separately.

[0213] In a preferred embodiment, the defoaming agent output end 970 and / or the detergent output end 920 can be disposed at the positioning portion 914 .

[0214] Similarly, a second control element is provided on the defoaming agent supply pipeline, and the second control element is a peristaltic pump.

[0215] Fig. 20 is a flow chart of a self-cleaning method of a surface cleaning device according to one embodiment of the present disclosure.

[0216] like Fig. 20 As shown, the self-cleaning method of the surface cleaning device of the present invention can clean the stirring element 630 of the above-mentioned surface cleaning device, that is, the self-cleaning method of the surface cleaning device of the present invention can remove the dirt on the stirring element 630 during the cleaning operation, thereby improving the cleaning efficiency; or after the cleaning operation is completed, remove the dirt on the stirring element 630 so that the stirring element 630 does not emit odor.

[0217] Specifically, the self-cleaning method of the surface cleaning device includes: the surface cleaning device obtains a signal for self-cleaning the stirring member of the surface cleaning device; determines whether the surface cleaning device is docked at the base, and when the surface cleaning device is not docked at the base, docks the surface cleaning device at the base and then starts the self-cleaning processing request; when the surface cleaning device is docked at the base, performs a self-check on the surface cleaning device and the base to obtain the current status of the surface cleaning device and the base; determines whether the surface cleaning device meets a first preset condition based on the status of the surface cleaning device; determines whether the base meets a second preset condition based on the status of the base; and when the surface cleaning device meets The first preset condition, when the base meets the second preset condition, the stirring part of the surface cleaning device is allowed to self-clean and start the self-cleaning cycle; wherein, when the following conditions are met, it is judged that the surface cleaning device meets the first preset condition: the power of the surface cleaning device is greater than the preset value, the cleaning liquid storage part of the surface cleaning device is located in the surface cleaning device, the recovery storage part of the surface cleaning device is located in the surface cleaning device, and the amount of liquid in the recovery storage part is less than or equal to the preset value; when the following conditions are met, it is judged that the base meets the second preset condition: the content of the detergent in the detergent holding part of the base can meet one self-cleaning cycle.

[0218] The self-cleaning method of the above-mentioned surface cleaning device will be described in detail below.

[0219] In the present disclosure, a self-cleaning button can be provided on the handle portion 100 of the surface cleaning device, and a signal for self-cleaning the stirring member 630 of the surface cleaning device can be generated by triggering the self-cleaning button. Furthermore, after the signal for self-cleaning the stirring member 630 of the surface cleaning device is generated, the surface cleaning device can obtain the signal for self-cleaning the stirring member 630 of the surface cleaning device.

[0220] Of course, a signal for self-cleaning the stirring member 630 of the surface cleaning device can also be generated by operating an APP or other methods. The method of generating the signal will not be described in detail in this disclosure.

[0221] After the surface cleaning device obtains a signal for self-cleaning the stirring member 630 of the surface cleaning device, it is necessary to determine whether the surface cleaning device is docked at the base (or base station). That is to say, the stirring member 630 of the surface cleaning device can be self-cleaned only when the surface cleaning device is docked at the base. Otherwise, the self-cleaning button may be operated incorrectly and a signal for self-cleaning the stirring member 630 of the surface cleaning device may be generated incorrectly. In this case, the stirring member 630 of the surface cleaning device is not allowed to be self-cleaned. Furthermore, when the surface cleaning device is not docked at the base, after the surface cleaning device is docked at the base, the self-cleaning button is triggered again, and a signal for self-cleaning the stirring member 630 of the surface cleaning device is generated again, and the self-cleaning request for the stirring member 630 of the surface cleaning device is started again.

[0222] Furthermore, when the surface cleaning device is docked on the base, a self-inspection is performed on the surface cleaning device and the base to obtain the current status of the surface cleaning device and the base; based on the status of the surface cleaning device, it is determined whether the surface cleaning device meets a first preset condition; based on the status of the base, it is determined whether the base meets a second preset condition.

[0223] When the surface cleaning device meets the first preset condition and the base meets the second preset condition, the stirring element of the surface cleaning device is allowed to self-clean and the self-cleaning cycle is started. Otherwise, the stirring element 630 of the surface cleaning device is not allowed to self-clean.

[0224] When the following conditions are met, it is judged that the surface cleaning device meets the first preset condition: the power of the surface cleaning device is greater than the preset value, the cleaning liquid storage part of the surface cleaning device is located in the surface cleaning device, the recovery storage part of the surface cleaning device is located in the surface cleaning device, and the amount of liquid in the recovery storage part is less than or equal to the preset value.

[0225] In the present disclosure, since the stirring member 630 of the surface cleaning device needs to be controlled to rotate and operations such as sewage suction need to be performed during the processing, it is necessary to keep the power of the surface cleaning device greater than a preset value (e.g., 20%); on the other hand, when the power of the surface cleaning device is less than the preset value, the user is prompted to charge the surface cleaning device. When the surface cleaning device is charged and the power of the surface cleaning device is greater than the preset value, the self-cleaning button can be triggered again to generate a signal for self-cleaning the stirring member 630 of the surface cleaning device, and initiate a request for self-cleaning the stirring member 630 of the surface cleaning device.

[0226] Since cleaning liquid needs to be provided to the stirring member 630 during the processing of the stirring member 630 of the surface cleaning device, it is necessary to ensure that the cleaning liquid storage unit 300 of the surface cleaning device is located in the surface cleaning device; on the other hand, when the cleaning liquid storage unit 300 is not located in the surface cleaning device, the user is prompted to install the cleaning liquid storage unit 300 on the frame unit 200 of the surface cleaning device. After the user installs the cleaning liquid storage unit 300 on the surface cleaning device, the self-cleaning button can be triggered again to generate a signal for self-cleaning the stirring member 630 of the surface cleaning device, and initiate a request for self-cleaning the stirring member 630 of the surface cleaning device.

[0227] On the other hand, when the cleaning liquid storage unit 300 of the surface cleaning device is located in the surface cleaning device, it is also necessary to detect the amount of cleaning liquid in the cleaning liquid storage unit 300 and determine whether the amount of cleaning liquid is greater than a preset value. Specifically, determining that the surface cleaning device meets the preset conditions also includes: the amount of cleaning liquid in the cleaning liquid storage unit 300 is greater than a preset value (for example, 20%); when the amount of cleaning liquid in the cleaning liquid storage unit 300 is less than or equal to the preset value, reminding the user to add cleaning liquid to the cleaning liquid storage unit 300, and after adding cleaning liquid and the amount of cleaning liquid is greater than the preset value, the self-cleaning button can be triggered again to generate a signal for self-cleaning the stirring member 630 of the surface cleaning device, and initiate a request for self-cleaning the stirring member 630 of the surface cleaning device.

[0228] Since the dirt and liquid after self-cleaning need to be recovered to the recovery storage unit 400 during the processing of the stirring member 630 of the surface cleaning device, it is necessary to ensure that the recovery storage unit 400 is located in the surface cleaning device. On the other hand, when the recovery storage unit 400 is not located in the surface cleaning device, the user is prompted to install the recovery storage unit 400 on the frame unit 200 of the surface cleaning device. After the user installs the recovery storage unit 400 on the surface cleaning device, the self-cleaning button can be triggered again to generate a signal for self-cleaning the stirring member 630 of the surface cleaning device, and start the request for self-cleaning the stirring member 630 of the surface cleaning device.

[0229] On the other hand, when the recovery storage unit 400 of the surface cleaning device is located in the surface cleaning device, it is also necessary to detect the amount of liquid in the recovery storage unit 400 and determine whether the amount of cleaning liquid is less than or equal to a preset value (for example, 50%). In other words, when the amount of liquid in the recovery storage unit 400 is small, the requirement of sucking dirt and liquid can be met. When the amount of liquid in the recovery storage unit 400 is greater than a preset value, the user is reminded to clean the recovery storage unit 400 and pour out the liquid in the recovery storage unit 400. When the user cleans the recovery storage unit 400 and the amount of liquid in the recovery storage unit 400 is less than or equal to a preset value, the self-cleaning button can be triggered again to generate a signal for self-cleaning the stirring member 630 of the surface cleaning device, and start the request for self-cleaning of the stirring member 630 of the surface cleaning device.

[0230] In the present disclosure, judging that the surface cleaning device satisfies the preset conditions also includes: the stirring member 630 satisfies the predetermined conditions; in a specific embodiment, the stirring member 630 satisfies the predetermined conditions at least including: the stirring member 630 is located in the surface cleaning device, the stirring member 630 is located in the correct position on the base, and the stirring member 630 can be driven to rotate.

[0231] When the following condition is met, it is determined that the base meets the second preset condition: the content of the detergent in the detergent containing portion of the base can meet one self-cleaning cycle.

[0232] In the present disclosure, when the stirring member 630 of the surface cleaning device is self-cleaned, detergent needs to be provided to the stirring member 630, wherein the detergent is provided by the base 900. Therefore, it is necessary to ensure that the detergent container is located on the base; on the other hand, when the detergent container is not located on the base, the user is prompted to install the detergent container on the base. After the user installs the detergent container on the base, the self-cleaning button can be triggered again to generate a signal for self-cleaning the stirring member 630 of the surface cleaning device, and initiate a request for self-cleaning the stirring member 630 of the surface cleaning device.

[0233] On the other hand, when the detergent holding part is located on the base, it is also necessary to detect the amount of detergent in the detergent holding part and determine whether the detergent content is greater than a preset value (5%), that is, determine whether the detergent content can satisfy a self-cleaning cycle. When the amount of detergent in the detergent holding part cannot satisfy a self-cleaning cycle, the user is reminded to add detergent to the detergent holding part. When the user adds detergent to the detergent holding part and the amount of detergent can satisfy a self-cleaning cycle, the self-cleaning button can be triggered again to generate a signal for self-cleaning the stirring member 630 of the surface cleaning device, and initiate a request for self-cleaning the stirring member 630 of the surface cleaning device.

[0234] In the present disclosure, the self-cleaning cycle includes at least one washing cycle as follows:

[0235] Control a first control element located in the base to provide detergent to at least one of the stirring element or the recessed portion at a preset flow rate for a preset time; while the base provides the detergent, control the stirring element of the surface cleaning device to rotate for a first preset time; when the base finishes providing the detergent, control the stirring element of the surface cleaning device to rotate for a second preset time; and start the suction device to suck the mixture on the stirring element and the mixture around the stirring element into a recovery storage part of the surface cleaning device.

[0236] The self-cleaning cycle may further comprise the step of providing cleaning liquid to an agitating member of the surface cleaning apparatus or to a recessed portion of the base prior to the washing cycle.

[0237] More preferably, the self-cleaning cycle further comprises a step of hot-air drying the stirring element of the surface cleaning device after the washing cycle, so that the stirring element of the surface cleaning device can be in a dry state as quickly as possible.

[0238] The self-cleaning method of the surface cleaning device also includes: determining whether a washing cycle has been started in the current self-cleaning cycle; if the washing cycle has been started, controlling the surface cleaning device to adjust operating parameters related to the self-cleaning mode after the washing cycle to reduce detergent on the stirring element.

[0239] More specifically, the operating parameter includes at least one of the following: a dehydration time of the agitating element, a water pump flow rate of the surface cleaning device, a power of a suction device of the surface cleaning device, and a rotation speed of the agitating element.

[0240] For example, the dehydration time of the stirring element can be increased, the flow rate of the cleaning liquid pump of the surface cleaning equipment can be reduced, the power of the suction device of the surface cleaning equipment can be increased, and the rotation speed of the stirring element can be increased, thereby reducing the liquid on the stirring element and reducing the detergent residue on the stirring element.

[0241] During the self-cleaning process of the stirring element of the surface cleaning device, the base station stops charging the surface cleaning device, thereby protecting the battery of the surface cleaning device and increasing the service life of the rechargeable battery of the surface cleaning device.

[0242] During the washing cycle, when the surface cleaning device is removed from the base, the washing cycle is automatically stopped, thereby improving the safety of the surface cleaning device during the self-cleaning operation. Similarly, during the self-cleaning cycle, when the surface cleaning device is removed from the base, the self-cleaning cycle is automatically stopped.

[0243] The detergent contains a foaming component, that is, the detergent contains a surfactant. More preferably, the detergent further contains a disinfectant, for example, the detergent is a detergent containing a disinfectant.

[0244] Since a lot of foam is generated during the self-cleaning of the stirring element by detergent, if the foam is not removed in time, it will overflow from the base. Moreover, when the foam is sucked into the recovery storage part 400, it will affect the normal operation of the recovery storage part 400, for example, affecting the normal operation of the liquid level meter of the recovery storage part 400.

[0245] Based on this, during the self-cleaning process of the agitator of the surface cleaning device, that is, during the self-cleaning cycle or the washing cycle, the defoaming agent is provided to at least one of the agitator of the surface cleaning device, the recessed portion of the base and the recovery storage portion.

[0246] More preferably, when the defoaming agent is provided to the stirring member or the recessed portion of the base of the surface cleaning equipment, it can be added when the washing cycle is about to end or has ended and before the sewage is recovered to the recovery storage part; accordingly, when the defoaming agent is added to the recovery storage part, it can be performed at any time point in the self-cleaning cycle.

[0247] In a preferred embodiment, the following steps are cyclically performed at least once within the first preset time: controlling the agitator to rotate in a first direction and / or controlling the agitator to rotate in a second direction, so that the detergent can be distributed as evenly as possible on the outer peripheral surface of the agitator; more preferably, controlling the agitator to rotate for a second preset time includes: cyclically performing the following steps at least once within the second preset time: controlling the agitator to rotate in a first direction and controlling the agitator to rotate in a second direction, thereby enabling the agitator to be cleaned more cleanly.

[0248] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments / methods or examples described in this specification and the features of the different embodiments / methods or examples, unless they are contradictory.

[0249] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0250] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A self-cleaning method for a surface cleaning device, characterized in that: include: The surface cleaning device obtains a signal to self-clean a stirring member of the surface cleaning device; Determine whether the surface cleaning device is docked at the base, and if the surface cleaning device is not docked at the base, dock the surface cleaning device at the base and then initiate a self-cleaning processing request; When the surface cleaning device is docked on the base, a self-check is performed on the surface cleaning device and the base to obtain the current status of the surface cleaning device and the base; According to the state of the surface cleaning device, determining whether the surface cleaning device meets a first preset condition; According to the state of the base, determining whether the base meets a second preset condition; as well as When the surface cleaning device meets the first preset condition and the base meets the second preset condition, the stirring element of the surface cleaning device is allowed to be self-cleaned and a self-cleaning cycle is started; Wherein, when the following conditions are met, it is judged that the surface cleaning device meets the first preset condition: the power of the surface cleaning device is greater than a preset value, the cleaning liquid storage part of the surface cleaning device is located in the surface cleaning device, the recovery storage part of the surface cleaning device is located in the surface cleaning device, and the amount of liquid in the recovery storage part is less than or equal to a preset value; When the following condition is met, it is determined that the base meets the second preset condition: the content of the detergent in the detergent containing portion of the base can meet one self-cleaning cycle.

2. The self-cleaning method of a surface cleaning device according to claim 1, characterized in that: The self-cleaning cycle includes at least one washing cycle as follows: controlling a first control element located in the base to provide detergent to at least one of the stirring member or the recessed portion at a preset flow rate for a preset time; While the base provides detergent, controlling the stirring member of the surface cleaning device to rotate for a first preset time; When the base finishes providing the detergent, controlling the stirring element of the surface cleaning device to rotate for a second preset time; as well as The suction device is started to suck the mixture on the stirring element and the mixture around the stirring element to the recovery storage part of the surface cleaning equipment.

3. The self-cleaning method of a surface cleaning device according to claim 2, characterized in that: Also includes: Determine whether a wash cycle has been started in the current self-cleaning cycle; If a wash cycle has been initiated, the surface cleaning device is controlled to adjust operating parameters associated with the self-cleaning mode after the wash cycle to reduce detergent on the agitator element.

4. The self-cleaning method of a surface cleaning device according to claim 3, characterized in that: The operating parameters include at least one of the following: The dehydration time of the stirring element, the flow rate of the cleaning liquid pump of the surface cleaning equipment, the power of the suction device of the surface cleaning equipment, and the rotation speed of the stirring element.

5. The self-cleaning method of a surface cleaning device according to claim 1, characterized in that: During the self-cleaning process of the agitator of the surface cleaning device, the base station stops charging the surface cleaning device.

6. The self-cleaning method of a surface cleaning device according to claim 2, characterized in that: When the surface cleaning device is removed from the base during a wash cycle, the wash cycle is automatically stopped.

7. The self-cleaning method of a surface cleaning device according to claim 1, characterized in that: When the surface cleaning device is removed from the base during the self-cleaning cycle, the self-cleaning cycle is automatically stopped.

8. The self-cleaning method of a surface cleaning device according to claim 1, characterized in that: The detergent contains a foaming component.

9. The self-cleaning method of a surface cleaning device according to claim 1, characterized in that: Also includes: A defoaming agent is provided to at least one of an agitation member of the surface cleaning apparatus, a recessed portion of the base, and a recovery reservoir.

10. The self-cleaning method of a surface cleaning device according to claim 1, characterized in that: The following steps are cyclically performed at least once within the first preset time: controlling the stirring member to rotate in a first direction, and / or controlling the stirring member to rotate in a second direction; and / or controlling the stirring member to rotate for a second preset time includes: cyclically performing the following steps at least once within the second preset time: controlling the stirring member to rotate in a first direction and controlling the stirring member to rotate in a second direction.

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