Wet surface cleaning device

Abstract

The utility model provides wet-type surface cleaning equipment. The wet-type surface cleaning equipment comprises an upright main body, a floor brush assembly, at least one cleaning execution part, at least one motor and at least one distance sensor, the floor brush assembly is pivotally connected with the upright main body; the cleaning execution part is located on the upright main body or the floor brush assembly; the motor is used for providing power for the cleaning execution part; the distance sensor is connected with the at least one motor, located on at least one side face of the floor brush assembly and used for sensing the distance between the side face and an external object.

Description

Technical Field

[0001] The present disclosure relates to a wet surface cleaning device. Background Art

[0002] When the existing floor cleaner cleans a surface to be cleaned, it can supply a cleaning liquid to the surface to be cleaned, so that the surface to be cleaned is wetted. Then, through the frictional contact between the stirring member of the floor brush assembly and the surface to be cleaned, the surface to be cleaned is wet-cleaned. At the same time, the used cleaning liquid is held in the recovery storage part as the contaminated cleaning liquid.

[0003] The floor cleaner in the prior art has a good effect when cleaning the indoor floor. However, when the floor cleaner cleans positions such as the corner of a wall, it often cannot be effectively cleaned. Therefore, after the user uses the floor cleaner to complete the cleaning of the indoor floor, the user still needs to manually clean components such as the corner of a wall, which is time-consuming and laborious. Summary of the Utility Model

[0004] In order to solve one of the above technical problems, the present disclosure provides a wet surface cleaning device.

[0005] According to one aspect of the present disclosure, there is provided a wet surface cleaning device, which includes:

[0006] An upright main body;

[0007] A floor brush assembly pivotally connected to the upright main body;

[0008] At least one cleaning actuator located on the upright main body or the floor brush assembly;

[0009] At least one motor for providing power to the cleaning actuator; and

[0010] At least one distance sensor connected to the at least one motor and located on at least one side of the floor brush assembly for sensing the distance between the side and an external object.

[0011] In the wet surface cleaning device according to at least one embodiment of the present disclosure, the distance sensor includes an optical sensor.

[0012] In the wet surface cleaning device according to at least one embodiment of the present disclosure, the floor brush assembly includes a housing, the housing includes a vertical side wall, and the at least one distance sensor is located on the side wall.

[0013] In the wet surface cleaning device according to at least one embodiment of the present disclosure, the at least one distance sensor is located on the side wall on the right side of the advancing direction of the floor brush assembly.

[0014] A wet surface cleaning device according to at least one embodiment of the present disclosure, wherein the at least one cleaning actuator includes a stirring member configured to be in frictional contact with the surface to be cleaned to clean the surface to be cleaned.

[0015] A wet surface cleaning device according to at least one embodiment of the present disclosure, wherein the at least one cleaning actuator includes a vacuum device configured to generate a negative pressure that can be provided to the floor brush assembly.

[0016] A wet surface cleaning device according to at least one embodiment of the present disclosure, wherein the at least one cleaning actuator includes a liquid supply pump configured to deliver a cleaning liquid to the surface to be cleaned or to the stirring member.

[0017] A wet surface cleaning device according to at least one embodiment of the present disclosure, wherein the at least one cleaning actuator includes a peristaltic pump configured to deliver at least one cleaning medium different from the cleaning liquid to the surface to be cleaned.

[0018] A wet surface cleaning device according to at least one embodiment of the present disclosure, wherein the at least one cleaning actuator includes a gas-liquid separator configured to prevent liquid from entering the at least one motor in a cleaning state where the upright body of the wet surface cleaning device is substantially parallel to the surface to be cleaned.

[0019] A wet surface cleaning device according to at least one embodiment of the present disclosure further includes a controller electrically connected to the at least one motor and the at least one distance sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, are used to explain the principles of the present disclosure. The drawings are included to provide a further understanding of the present disclosure and are incorporated in this specification and form a part of this specification.

[0021] Figure 1 is a schematic structural diagram of a surface cleaning system according to an embodiment of the present disclosure.

[0022] Figure 2 is a schematic structural diagram of a surface cleaning device according to an embodiment of the present disclosure.

[0023] Figure 3 is a schematic structural diagram of a floor brush assembly according to an embodiment of the present disclosure.

[0024] Figure 4 is a schematic structural diagram of the floor brush assembly from another angle according to an embodiment of the present disclosure.

[0025] Figure 5 is Figure 4 an enlarged schematic view of part A of

[0026] Figure 6 a schematic structural view of a floor brush assembly docked at a base station according to an embodiment of the present disclosure.

[0027] Figure 7 a schematic partial structural view of a floor brush assembly according to an embodiment of the present disclosure.

[0028] Figure 8 is Figure 7 an enlarged schematic view of part B of

[0029] Figure 9 a schematic structural view of a rotating bracket and a nozzle according to an embodiment of the present disclosure.

[0030] Figure 10 a schematic structural view of a rotating bracket and a nozzle from another angle according to an embodiment of the present disclosure.

[0031] Figure 11 a schematic structural view of a rotating bracket according to an embodiment of the present disclosure.

[0032] Figure 12 a schematic structural view of a nozzle according to an embodiment of the present disclosure.

[0033] Figure 13 a schematic structural view of a floor brush assembly docked at a base station according to an embodiment of the present disclosure.

[0034] Figure 14 a schematic structural view of a base station according to an embodiment of the present disclosure.

[0035] Figure 15 is Figure 14 an enlarged schematic view of part C of

[0036] Figure 16 a schematic view of the mating relationship between a base station and a rotating bracket according to an embodiment of the present disclosure.

[0037] Figure 17 is Figure 16 an enlarged schematic view of part D of

[0038] The specific reference numerals in the figure are as follows:

[0039] 100 handle part

[0040] 200 frame part

[0041] 300 cleaning liquid storage part

[0042] 400 recycling storage part

[0043] 500 Connecting part

[0044] 600 Floor brush assembly

[0045] 610 Housing

[0046] 611 Front end

[0047] 620 Stirring part

[0048] 630 Suction nozzle

[0049] 640 Nozzle

[0050] 641 First body

[0051] 642 Second body

[0052] 643 Notch

[0053] 650 Rotating bracket

[0054] 651 Substrate

[0055] 651A First surface

[0056] 651B Second surface

[0057] 651C Bracket part

[0058] 651D Loading surface

[0059] 651E Protrusion

[0060] 651F Stopper

[0061] 652 Shaft component

[0062] 653 Return spring

[0063] 660 Distance sensor

[0064] 900 Base station

[0065] 910 Seat part

[0066] 920 Tray

[0067] 921 Positioning groove

[0068] 922 Limiting part

[0069] 923 Cleaning tank

[0070] 924 Air outlet

[0071] 925 End face

[0072] 930 Actuator

[0073] 931 First outer surface

[0074] 932 guiding surface

[0075] 933 force - applying surface. Detailed implementation manners

[0076] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and implementation manners. It can be understood that the specific implementation manners described herein are only used to explain the relevant content and do not limit the present disclosure. Additionally, it should be noted that for the convenience of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0077] It should be noted that, without conflict, the implementation manners in the present disclosure and the features in the implementation manners can be combined with each other. The technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings and implementation manners.

[0078] Unless otherwise specified, the illustrated exemplary implementation manners / embodiments will be understood to provide exemplary features of various details of some ways that can implement the technical concept of the present disclosure in practice. Therefore, unless otherwise specified, without departing from the technical concept of the present disclosure, the features of various implementation manners / embodiments can be additionally combined, separated, interchanged, and / or rearranged.

[0079] In the accompanying drawings, cross - hatching and / or shading are generally used to make the boundaries between adjacent components clear. Thus, unless stated, the presence or absence of cross - hatching or shading does not convey or imply any preference or requirement for the specific material, material properties, dimensions, proportions, commonality between the illustrated components, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, for clarity and / or descriptive purposes, the dimensions and relative dimensions of the components may be exaggerated. When the exemplary embodiments can be implemented differently, the specific process sequences can be executed in an order different from that described. For example, two consecutively described processes can be executed substantially simultaneously or in an order opposite to that described. In addition, the same reference numerals denote the same components.

[0080] When a component is referred to as being "on" or "above" another component, "connected to" or "coupled to" another component, the component can be directly on the other component, directly connected to or directly coupled to the other component, or there can be an intermediate component. However, when the component is referred to as being "directly on" another component, "directly connected to" or "directly coupled to" another component, there is no intermediate component. For this reason, the term "connection" can refer to physical connection, electrical connection, etc., and can have or not have an intermediate component.

[0081] For descriptive purposes, the present disclosure may use spatial relative terms such as "under", "below", "beneath", "lower", "above", "upper", "on top of", "higher", and "side (e.g., as in "sidewall")" to describe the relationship of one component to another (other) component as shown in the drawings. In addition to the orientation depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawing is flipped, the component described as "under" or "beneath" another component or feature will then be positioned "above" the other component or feature. Thus, the exemplary term "under" can encompass both "above" and "below" orientations. In addition, the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations), and accordingly, the spatial relative descriptors used herein are to be interpreted.

[0082] The terms used herein are for the purpose of describing particular embodiments and are not intended to be limiting. As used herein, unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" are also intended to include the plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is stated that there are the stated features, integers, steps, operations, components, assemblies, and / or groups thereof, but it does not preclude the presence or addition of one or more other features, integers, steps, operations, components, assemblies, and / or groups thereof. It should also be noted that, as used herein, the terms "substantially", "about", and other similar terms are used as approximate terms and not as terms of degree, and thus they are used to explain the inherent deviations of measured, calculated, and / or provided values that would be recognized by a person of ordinary skill in the art.

[0083] Figure 1 is a schematic structural diagram of a surface cleaning system according to an embodiment of the present disclosure.

[0084] As Figure 1 and Figure 2 shown, the present disclosure provides a surface cleaning system, which includes a surface cleaning device and a base station 900.

[0085] The surface cleaning device is configured to be able to clean a surface to be cleaned (such as a floor surface, etc.). Preferably, the surface cleaning device is able to perform wet cleaning on the surface to be cleaned, that is, the surface cleaning device can be a wet surface cleaning device, and the liquid after cleaning the surface to be cleaned is recovered to the surface cleaning device.

[0086] The base station 900 is configured for the surface cleaning device to dock and is able to provide electrical energy to the surface cleaning device to charge the rechargeable battery of the surface cleaning device.

[0087] More preferably, the base station 900 is also capable of supplying hot air to the surface cleaning device to dry the stirring member 620 of the surface cleaning device through the hot air, so that after the stirring member 620 is self-cleaned, the residual water on the stirring member 620 can be removed, preventing the stirring member 620 from generating peculiar smell.

[0088] The present disclosure will first describe the structure of the surface cleaning device in detail, and then describe the structure of the base station 900 in detail below.

[0089] Figure 2 It is a schematic structural diagram of a surface cleaning device according to an embodiment of the present disclosure.

[0090] As Figure 1 and Figure 2 shown, the surface cleaning device may include components such as a handle portion 100, a frame portion 200, a cleaning liquid storage portion 300, a recycling storage portion 400, a connecting portion 500, and a floor brush assembly 600.

[0091] 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 surface to be cleaned, so as to perform wet cleaning on the surface to be cleaned through the floor brush assembly 600.

[0092] The handle portion 100 is used to operate the surface cleaning device. More specifically, on the one hand, the operator can control the attitude 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° with the surface to be cleaned) or a substantially lying flat state (i.e., substantially parallel to the surface to be cleaned), the surface cleaning device can be in a cleaning mode and can clean the surface to be cleaned; when the frame portion 200 of the surface cleaning device is in a vertical state, at this time the surface cleaning device can be in a stopped working state, or when the surface cleaning device is docked at the base station 900, the frame portion 200 of the surface cleaning device is also substantially in a vertical state; on the other hand, physical buttons can be provided on the handle portion 100, so as to control the surface cleaning device through 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, etc., so as to make the user experience of the surface cleaning device better.

[0093] The handle portion 100 can be disposed at the upper end of the frame portion 200, so as to be able to operate the surface cleaning device by operating the handle portion 100. In the present disclosure, the frame portion 200 is formed as the main stress structure of the surface cleaning device, and both the cleaning liquid storage portion 300 and the recycling storage portion 400 of the surface cleaning device can be directly or indirectly fixed to the frame portion 200.

[0094] The cleaning liquid storage part 300 is formed in the shape of a box to store the cleaning liquid therein. In one embodiment, the cleaning liquid may be purified water. Of course, those skilled in the art should know that a mixture of purified water and a cleaning agent, etc. can also be stored in the cleaning liquid storage part 300.

[0095] An accommodation space is formed on the frame part 200, and the cleaning liquid storage part 300 can be arranged in the accommodation space, and a part of the outer surface of the cleaning liquid storage part 300 forms a part of the outer surface of the surface cleaning device.

[0096] In the present disclosure, the cleaning liquid storage part 300 can be detached from the frame part 200, and the cleaning liquid can be manually filled by the user; of course, the cleaning liquid in the cleaning liquid storage part 300 of the present disclosure can also be filled through a cleaning liquid interface provided on the frame part 200.

[0097] Furthermore, when a cleaning liquid interface is provided on the frame part 200, the cleaning liquid storage part 300 can be arranged inside the frame part 200. At this time, the cleaning liquid storage part 300 does not form at least a part of the outer surface of the surface cleaning device.

[0098] In the present disclosure, to achieve the cleaning of the surface to be cleaned, the cleaning liquid storage part 300 is at least connected to the floor brush assembly 600 through a cleaning liquid pipeline, so as to supply the 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 cleaning agent, etc. to form foam, and the surface to be cleaned can be cleaned by the foam.

[0099] As Figure 1 As shown, the frame part 200 forms an accommodation space, and the recycling storage part 400 is detachably arranged on the frame part 200 and is located in the accommodation space. When there is more liquid stored in the recycling storage part 400, the user can remove the recycling storage part 400, pour out the sewage inside and clean up the solid garbage. At this time, a part of the outer surface of the recycling storage part 400 forms a part of the outer surface of the surface cleaning device.

[0100] In order to recycle the liquid after cleaning the surface to be cleaned, the recycling storage part 400 can be connected to the floor brush assembly 600 through a recycling pipeline. Correspondingly, a mixture of sewage and gas (dirty) can be recycled to the recycling storage part 400 through the recycling pipeline.

[0101] Accordingly, the surface cleaning device further includes a vacuum pumping device (not shown in the figure), wherein the vacuum pumping device can generate a negative pressure and supply the negative pressure to the recovery storage unit 400, so as to achieve the forced flow of gas and sewage in the recovery pipeline. In the present disclosure, the gas discharged from the vacuum pumping device can flow to the outside of the surface cleaning device through the gaps on a part of the outer surface of the surface cleaning device.

[0102] The frame part 200 is connected to the floor brush assembly 600 through the connecting part 500, so that the frame part 200 is pivotally connected to the floor brush assembly 600. In the present disclosure, the frame part 200 has at least two rotational degrees of freedom relative to the floor brush assembly 600, so as to enable the user to operate the surface cleaning device more conveniently.

[0103] Figure 3 is a schematic structural view of a floor brush assembly according to an embodiment of the present disclosure. Figure 4 is a schematic structural view of another angle of the floor brush assembly according to an embodiment of the present disclosure. Figure 5 is Figure 4 an enlarged schematic view of part A of

[0104] As Figures 3 to 5 shown, the floor brush assembly 600 of the present disclosure may include a housing 610, a stirring member 620, a suction nozzle 630, a foam generator, and a nozzle 640.

[0105] The housing 610 is configured to be connected to the frame part 200 through the connecting part 500, and the housing 610 can be adapted to move on the surface to be cleaned. Accordingly, the surface of the housing 610 close to the surface to be cleaned forms the bottom surface of the housing 610. For example, the housing 610 may include two rolling wheels. When the surface cleaning device is cleaning the surface to be cleaned, the user can operate the surface cleaning device so that the surface cleaning device can move in the front-rear direction, wherein the forward direction is the direction in which the floor brush assembly 600 is away from the user, and correspondingly, the backward direction is the direction in which the floor brush assembly 600 is close to the user.

[0106] The housing 610 can define a suction cavity for the floor brush assembly. The suction cavity is located in the front half of the floor brush assembly 600 so as to accommodate the stirring member 620 in the suction cavity. Correspondingly, the stirring member 620 is also located in the front half of the floor brush assembly 600.

[0107] The suction nozzle 630 is formed on the housing 610. In the present disclosure, the suction nozzle 630 is disposed adjacent to the stirring member 620 and is located behind the stirring member 620. In the present disclosure, the suction nozzle 630 is connected to the recovery pipeline and forms the starting point of the recovery path. That is to say, the suction nozzle 630 of the present disclosure can communicate with the recovery storage unit 400 of the surface cleaning device.

[0108] The stirring member 620 is configured to stir the surface to be cleaned; that is, when the surface cleaning device is performing a cleaning operation or a self-cleaning operation, the stirring member 620 can be driven by a motor to rotate. Thus, the stirring member 620 can make frictional contact with the surface to be cleaned, that is, the stirring member 620 can cooperate with the cleaning medium to scrub the surface to be cleaned so as to clean the surface to be cleaned. During the process of the stirring member 620 making frictional contact with the surface to be cleaned, a cleaning liquid can be provided to the stirring member 620 or the surface to be cleaned near the stirring member 620, thereby realizing wet cleaning of the surface to be cleaned.

[0109] That is to say, the surface cleaning device of the present disclosure may include a liquid dispenser that can supply a cleaning liquid to the stirring member 620 or the surface to be cleaned near the stirring member 620. In a specific embodiment, the liquid dispenser may include a liquid supply pump that can extract the cleaning liquid from the cleaning liquid storage portion 300, pressurize the cleaning liquid, and supply it to the liquid outlet member, and the pressurized cleaning liquid is supplied to the stirring member 620 or the surface to be cleaned near the stirring member 620 through the liquid outlet member.

[0110] In the present disclosure, the liquid outlet member may be formed in the form of a nozzle. Of course, it may also be formed in the form of a water spray hole on the housing 610. Details are not described one by one in the present disclosure.

[0111] The foam generator is used to generate foam. In the present disclosure, the foam generator can generate foam by mixing the cleaning liquid stored in the cleaning liquid storage portion 300 and the cleaning agent stored in the container storing the cleaning agent. In a preferred embodiment, the foam generator can be connected to the liquid dispenser so as to supply the cleaning liquid to the foam generator through the liquid dispenser.

[0112] The foam generator of the present disclosure may be provided in the housing 610. In another embodiment, the foam generator can also be provided in the frame portion 200 and communicated with the nozzle 640 through a foam delivery pipeline.

[0113] The nozzle 640 conveys the foam generated by the foam generator outward; wherein, the nozzle 640 can rotate between a first operable position and a second operable position. The first operable position is that the nozzle 640 faces the plane of the bottom surface of the floor brush assembly 600 and is substantially perpendicular thereto, and the second operable position is that the nozzle 640 faces the plane of the bottom surface of the floor brush assembly 600 and forms a first angle α therewith, and the first angle is less than 90°.

[0114] In one case, such as Figure 4 and Figure 5As shown, when the surface cleaning device is cleaning the surface to be cleaned, the surface to be cleaned can be a flat surface. Correspondingly, the bottom surface of the housing 610 can be parallel or substantially parallel to the surface to be cleaned. At this time, the nozzle 640 needs to provide foam to the surface to be cleaned. Therefore, the nozzle 640 needs to be arranged facing the surface to be cleaned, that is, the nozzle 640 needs to be arranged to face the plane where the bottom surface of the floor brush assembly 600 is located and be substantially perpendicular to it. That is to say, the first operable position is the position of the nozzle 640 when the surface cleaning device is cleaning on the surface to be cleaned.

[0115] Figure 6 It is a schematic structural diagram of the floor brush assembly docked at the base station according to an embodiment of the present disclosure.

[0116] In another case, as Figure 6 shown, when the surface cleaning device is docked at the base station 900 for self-cleaning, that is, when self-cleaning the stirring member 620, the nozzle 640 needs to provide foam to the stirring member 620, so as to be able to clean the stirring member 620 more thoroughly. In other words, the second operable position is the position of the nozzle 640 when performing maintenance on the base station 900. At this time, the nozzle 640 faces the plane where the bottom surface of the floor brush assembly 600 is located and forms a first angle with it, and the first angle is less than 90°. Therefore, the nozzle 640 is arranged to face the stirring member 620.

[0117] That is to say, when the nozzle 640 is located at the second operable position, along the direction from top to bottom, the nozzle 640 is arranged to be close to the axis of the stirring member 620. Therefore, when the value of the first angle is relatively large, the foam provided by the nozzle 640 can be provided into the cleaning tank 923 of the base station 900. Moreover, when the surface cleaning device is performing self-cleaning, its stirring member 620 is also located in the cleaning tank 923, and the stirring member 620 can be driven to rotate. Correspondingly, the foam in the cleaning tank 923 can cover the entire stirring member 620, so as to clean the stirring member 620 with the cleaning agent in the foam.

[0118] On the other hand, when the value of the first angle is relatively small, the nozzle 640 is arranged to face the stirring member 620. Therefore, the foam provided by the nozzle 640 can be directly provided onto the stirring member 620. Further, since the nozzle 640 can continuously provide foam, correspondingly, as the stirring member 620 rotates, the foam can cover the entire stirring member 620, so as to clean the stirring member 620 with the cleaning agent in the foam.

[0119] In a preferred embodiment, the first angle is 10 - 85°. Correspondingly, within the range of this first angle, the nozzle 640 can only supply foam to the cleaning tank 923 or the stirring member 620, and will not supply foam to other components, thereby improving the utilization efficiency of the foam. That is to say, when providing the same amount of foam (for example, the foam generator is controlled and operates at a preset power for a preset time), the cleaning effect of the stirring member 620 is improved.

[0120] Figure 7 is a partial structural schematic diagram of a floor brush assembly according to an embodiment of the present disclosure. Figure 8 is Figure 7 an enlarged schematic view of part B of Figure 9 is a structural schematic diagram of a rotating bracket and a nozzle according to an embodiment of the present disclosure. Figure 10 is a structural schematic diagram of a rotating bracket and a nozzle from another angle according to an embodiment of the present disclosure. Figure 11 is a structural schematic diagram of a rotating bracket according to an embodiment of the present disclosure. Figure 12 is a structural schematic diagram of a nozzle according to an embodiment of the present disclosure.

[0121] The rotation of the nozzle 640 between the first operable position and the second operable position is achieved through the rotating bracket 650; that is to say, the nozzle 640 of the present disclosure can be mounted on the rotating bracket 650. Thus, when the rotating bracket 650 rotates, the cut of the nozzle 640 can have different orientations. Correspondingly, the nozzle 640 can be in the first operable position or the second operable position.

[0122] In a specific embodiment, as Figure 12 shown, the nozzle 640 of the present disclosure can supply the foam (cleaning foam) generated by the foam generator to the surface to be cleaned, or directly or indirectly supply the foam generated by the foam generator to the stirring member 620. More preferably, the foam generator can generate high-pressure foam, and these high-pressure foams are ejected from the nozzle 640 at high speed, so that the foam has a large coverage area.

[0123] Structurally, the nozzle 640 includes a first main body 641 and a second main body 642 that are connected to each other; wherein, the first main body 641 and the second main body 642 can be integrally formed or separately formed, and are installed or fixed together.

[0124] In the present disclosure, the first main body 641 is formed as a hemispherical thin-walled part, so that the interior of the first main body 641 forms a hemispherical buffer cavity, that is, the outer surface of the first main body 641 is a hemispherical surface. Correspondingly, the inner surface of the first main body 641 is a hemispherical surface, thereby making the first main body 641 have a generally uniform wall thickness as a whole.

[0125] At least a portion of the second body 642 is formed in a cylindrical shape. For example, one end of the second body 642 connected to the first body 641 is formed in a substantially cylindrical shape. In the present disclosure, preferably, the outer diameter (diameter) of the cylindrical portion of the second body 642 is the same as the diameter of the outer surface of the first body 641.

[0126] The second body 642 includes a delivery channel for delivering foam, and the delivery channel communicates with the hemispherical buffer cavity; 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 641, so that the foam has as little resistance as possible during the delivery process.

[0127] The nozzle 640 further includes a cut 643 through which the foam is supplied to the surface to be cleaned; in a specific embodiment, the cut 643 is provided to horizontally penetrate the first body 641 and communicate with the hemispherical buffer cavity, so that after the foam detaches from the cut 643, a fan-shaped radiation surface is formed.

[0128] That is to say, when processing the cut 643 of the first body 641, a groove with a certain width and a certain depth can be cut from the vertex of the first body 641 towards the center of the sphere. When the nozzle 640 is installed on the rotating bracket 650, it is only necessary to keep the cut 643 arranged in the horizontal direction or substantially in the horizontal direction. Among them, the horizontal direction is the axial direction of the stirring member 620.

[0129] In a more preferred embodiment, at least a portion of the cut 643 extends to the second body 642, that is to say, at least a portion of the second body 642 is formed with a groove, and the groove is formed as a part of the cut 643.

[0130] At this time, the inner diameter of the delivery channel is smaller than the projection length of the cut 643 on the cross-section of the delivery channel, so that the cut 643 can have a maximum foam radiation area.

[0131] In a preferred solution, when the nozzle 640 is in the first operable position, there is a first distance between the cut 643 of the nozzle 640 and the surface to be cleaned; when the nozzle 640 is in the second operable position, there is a second distance between the cut 643 of the nozzle 640 and the inner wall surface of the cleaning tank 923, or there is a third distance between the cut 643 of the nozzle 640 and the outer surface of the stirring member 620; in the present disclosure, when the first distance is greater than the second distance, the second distance is greater than the third distance.

[0132] Thus, when foam with pressure is provided to the nozzle 640, the pressure of the foam can be changed according to the position of the nozzle 640, so that the nozzle 640 can provide foam in the entire lateral direction of the floor brush assembly.

[0133] Specifically, when the nozzle 640 is in the first operable position, foam with a first pressure can be provided to the nozzle 640, and after the foam is sprayed onto the surface to be cleaned, it can be formed into a linear foam. The length of the linear foam can be substantially the same as the axial dimension of the stirring member 620 and is located in front of the stirring member 620. Thus, the linear foam can pre-wet the floor to be cleaned, and as the floor brush assembly 600 moves forward, it is dispersed by the rotating stirring member 620, so as to clean the surface to be cleaned through the foam.

[0134] When the nozzle 640 is in the second operable position, the angular value of the first angle between the nozzle 640 and the plane where the bottom surface of the floor brush assembly 600 is located can be determined first, and it can be judged according to the angular value of the first angle whether the nozzle 640 provides foam to the inner wall surface of the cleaning tank 923 or the nozzle 640 provides foam to the outer surface of the stirring member 620; moreover, the value of the second distance or the third distance can also be obtained according to the angular value of the first angle.

[0135] Accordingly, the pressure of the foam can be changed according to the value of the second distance or the third distance. Specifically, when the nozzle 640 provides foam to the inner wall of the cleaning tank 923, the foam has a second pressure; when the nozzle 640 provides cleaning foam to the surface of the stirring member 620, the foam has a third pressure, where the first pressure is greater than the second pressure, and the second pressure is greater than the third pressure. Thus, it can be ensured that the foam ejected by the nozzle 640 can cover the entire stirring member 620 in the lateral direction, thereby improving the cleaning effect of the stirring member 620.

[0136] The other end of the second body 642 of the nozzle 640 can be connected and fixed to the rotating bracket 650, so that the nozzle 640 can be driven to swing by the rotating bracket 650. Thus, the position of the nozzle 640 of the present disclosure can be conveniently controlled.

[0137] As Figure 7 and Figure 8 shown, the housing 610 of the present disclosure includes a front end portion 611. The front end portion 611 includes a groove portion, and at least part of the rotating bracket is located in the groove portion. Thus, the projection of the nozzle 640 on the surface to be cleaned can be in front of the projection of the stirring member 620 on the surface to be cleaned. Accordingly, when the nozzle 640 is in the first operable position, the nozzle 640 does not directly provide foam to the stirring member 620.

[0138] In a specific embodiment, as Figure 9 andFigure 10 As shown, the rotating bracket 650 may include: a base body 651 and a shaft member 652. The base body 651 is formed with a foam channel, wherein both ends of the foam channel are respectively communicated with a foam generator and a nozzle 640; specifically, the foam channel can be communicated with the conveying channel of the nozzle 640. The base body 651 is rotatably arranged on the housing 610 through the shaft member 652; in a specific embodiment, the base body 651 and the shaft member 652 are separately arranged and can be assembled together.

[0139] Specifically, through holes may be formed on two side walls in the transverse direction of the groove portion. One end of the shaft member 652 is rotatably arranged in the through holes, and correspondingly, the other end of the shaft member 652 can be fixed to the base body 651. In a preferred embodiment, the number of the shaft members 652 is two. In the transverse direction, the two shaft members 652 are respectively located on both sides of the base body 651. Moreover, the two shaft members 652 have the same rotation axis, and the rotation axis is parallel to the transverse direction.

[0140] Thus, the rotating bracket 650 of the present disclosure can rotate a preset angle relative to the housing 610, and correspondingly, the nozzle 640 is in different positions.

[0141] In a preferred embodiment, the base body 651 includes a first surface 651A and a second surface 651B opposite to the first surface 651A; when the nozzle 640 is in the first operable position, the first surface 651A and / or the second surface 651B can be parallel or substantially parallel to the surface to be cleaned. That is to say, at this time, the first surface 651A and the second surface 651B can be substantially parallel to the bottom surface of the housing 610.

[0142] In the height direction, the second surface 651B is located at a position higher than the first surface 651A, so that the nozzle 640 can be fixed at the first surface 651A; that is to say, the nozzle 640 of the present disclosure is located below the rotating bracket 650.

[0143] The groove portion of the housing 610 includes a limiting surface. In a preferred embodiment, since the groove portion of the housing 610 may include a top wall and two side walls, correspondingly, the top wall is formed as the limiting surface. When the rotating bracket 650 rotates under the restoring force of the restoring spring and the nozzle 640 rotates from the second operable position to the first operable position, the limiting surface can contact at least a part of the second surface 651B and limit the further rotation of the rotating bracket 650. Thus, the nozzle 640 is limited in the first operable position.

[0144] The base body 651 includes two support portions 651C which are respectively located at two ends in the transverse direction of the base body 651 and extend from the second surface 651B of the base body 651 in a direction perpendicular to the transverse direction (i.e., extend upward). Thus, a preset distance can be provided between the second surface 651B of the base body 651 and the rotation axis of the shaft member 652. Accordingly, the rotation bracket 650 formed by the above structure can be more conveniently mounted on the housing 610.

[0145] In the present disclosure, when the nozzle 640 moves from the first operable position to the second operable position, the second surface 651B moves away from the limiting surface; that is to say, the limiting surface of the housing 610 of the present disclosure can only be used to limit the rotation of the rotation bracket 650 in one direction and does not limit the rotation of the rotation bracket 650 in the reverse direction.

[0146] In the present disclosure, the base body 651 includes a force-receiving surface 651D. When a pressure is applied to the force-receiving surface 651D, the pressure causes the rotation bracket 650 to rotate and causes the nozzle 640 to rotate in a direction approaching the second operable position.

[0147] In a preferred embodiment, the force-receiving surface 651D can be formed as at least a part of the front surface of the base body 651; more preferably, a bump 651E is formed on the base body 651, the bump 651E protrudes forward, and the front surface of the bump 651E is formed as the force-receiving surface 651D. Thus, the rotation bracket 650 of the present disclosure can be conveniently applied with a force by the force-applying surface of the actuator 930 of the base station 900, and during the process of applying a force to the rotation bracket 650, it will not touch the nozzle 640, so that the nozzle 640 will not be damaged.

[0148] In the present disclosure, a return spring 653 is provided on the shaft member 652, and the return spring 653 is used to reset the rotation bracket 650 from the second operable position to the first operable position. In a specific embodiment, the return spring 653 can be a torsion spring. The base body 651 includes a stop portion 651F which is formed as a protruding portion in the transverse direction. Thus, one end of the torsion spring can be stopped at the stop portion 651F, and the other end can be stopped at the housing 610, and the torsion spring is in a pre-compressed state, so that the rotation bracket 650 can be reset by the torsion spring, that is, the nozzle 640 can be reset from the second operable position to the first operable position.

[0149] In other words, when the surface cleaning device leaves the base station 900, since the base station 900 can no longer apply a force to the force-receiving surface of the rotation bracket 650, the rotation bracket 650 and the nozzle 640 will return to the initial state, where the initial state is the state in which the nozzle 640 is in the first operable position.

[0150] In the present disclosure, the overall assembly composed of components such as the handle portion 100, the frame portion 200, the cleaning liquid storage portion 300, and the recycling storage portion 400 can be referred to as an upright body. Correspondingly, the upright body is pivotally connected to the floor brush assembly 600, that is, the upright body can be pivotally connected to the floor brush assembly 600 through the connecting portion 500.

[0151] As Figure 3 shown, the housing 610 of the present disclosure includes a vertical side wall, and at least one distance sensor 660 is disposed on the side wall so as to facilitate the distance sensor 660 to detect the distance between the side surface of the housing 610 (i.e., the side surface of the floor brush assembly 600) and an external object (such as a wall).

[0152] In the present disclosure, when the distance sensor 660 is provided as one, it can be disposed on the right side wall in the advancing direction of the floor brush assembly 600. That is to say, when the surface cleaning device is actually used, due to the particularity of the user's walking trajectory, generally the right side of the floor brush assembly 600 is likely to contact a wall or the like. Correspondingly, disposing the distance sensor 660 on the right side wall can enable the distance sensor 660 to more easily detect the distance between the floor brush assembly and the wall, having a better use effect. On the other hand, the distance sensor 660 can also be provided as two. Correspondingly, the distance sensor 660 can be disposed at both the left and right side walls in the advancing direction of the floor brush assembly 600. Thus, the distance between the wall surfaces on both sides of the floor brush assembly and the floor brush assembly can be sensed by the distance sensor 660.

[0153] In a preferred embodiment, the distance sensor 660 includes an optical sensor. For example, the distance sensor can be configured to include a light emitting unit that emits light and a light receiving unit that receives incident reflected light, and obtain the distance between the distance sensor 660 and the wall through the time difference between the emitted light and the received light, so as to further obtain the distance between the floor brush assembly 600 and the wall.

[0154] Of course, the distance sensor 660 can also be configured as an infrared sensor, and can also be configured as a point lidar sensor or the like. In a specific embodiment, the distance sensor 660 can be configured to emit electromagnetic energy and detect the reflected echo of the emitted energy to determine the position of an external object such as a wall.

[0155] The surface cleaning device of the present disclosure may further include a peristaltic pump (not shown in the figure), and the peristaltic pump is disposed in the housing 610 of the floor brush assembly 600 for delivering at least one cleaning medium different from the cleaning liquid (such as foam) to the surface to be cleaned; that is to say, after the foam generator generates foam, the foam can be pressurized by the peristaltic pump and provided to the nozzle 640.

[0156] More preferably, the surface cleaning device of the present disclosure may further include a gas-liquid separator (not shown in the figures), which is used to prevent liquid (i.e., the liquid in the recovery storage unit 400) from entering the at least one motor in the cleaning state where the upright body of the wet surface cleaning device is substantially parallel to the surface to be cleaned. For example, it prevents liquid from entering the motor of the vacuum pumping device. In the present disclosure, the gas-liquid separator is disposed on the upright body and at least partially located within the recovery storage unit 400.

[0157] In the present disclosure, devices such as the stirring member, the liquid supply pump, the vacuum pumping device, the peristaltic pump, and the gas-liquid separator can be collectively referred to as cleaning execution members, and these components can be driven by their respective motors to be able to operate normally.

[0158] Specifically, the motors are arranged in one-to-one correspondence with the cleaning execution members and are connected to the cleaning execution members to provide driving force to the cleaning execution members.

[0159] In the present disclosure, the distance sensor 660 can be connected to the controller, and the controller is connected to the motor. At this time, the controller can control the speed of at least one motor according to the distance between the floor brush assembly and the wall detected by the distance sensor.

[0160] Specifically, when the distance value sensed by the distance sensor is equal to or less than the threshold value, the speed of the motor is configured to increase, so that components such as the corner can be cleaned with emphasis, thereby improving the cleaning effect on components such as the corner.

[0161] For example, the distance value sensed by the distance sensor is transmitted to the controller, and the controller controls the speed of the motor according to the distance value and the threshold value. When the distance value detected by the distance sensor is equal to or less than the threshold value, the controller can control the motor to increase the speed of the motor. For example, when the distance value is less than or equal to the threshold value, the controller can immediately control the speed of the motor to increase by 50% or double the speed.

[0162] When the distance value is greater than the threshold value, that is, in the normal use state of the wet surface cleaning device, its power is the first power. When the distance value is equal to or less than the threshold value, the power of the wet surface cleaning device can be configured to be a second power greater than the first power by increasing the speed of the motor.

[0163] The distance sensor accurately measures the relative distance between the floor brush assembly and the side wall and determines the formation position of the distance sensor, so as to more accurately predict the movement time and movement distance of the floor brush assembly until the floor brush assembly contacts the wall (side wall), and the distance sensor stops moving after sensing the side wall.

[0164] The threshold value is configured to be longer than the distance from the wall surface (wall) to the distance sensor. That is, before the side of the floor brush assembly touches the wall surface, the distance sensor should sense the side wall. Further, the controller can control the motor so that the rotational speed of the motor increases.

[0165] When the controller determines that the distance value sensed by the distance sensor is equal to or less than the threshold value, the controller can immediately increase the rotational speed of the motor. Thus, the cleaning power of the surface cleaning device can be increased, and the cleaning effect can be improved.

[0166] Generally speaking, when the distance value sensed by the distance sensor is less than or equal to the threshold value, the suction (negative pressure) of the surface cleaning device, the supply amount of the cleaning liquid, the supply amount of the foam, etc. can all be increased, thereby improving the cleaning effect.

[0167] Meanwhile, in the cleaning state where the upright main body of the wet surface cleaning device is substantially parallel to the surface to be cleaned, when the distance value sensed by the distance sensor is less than or equal to the threshold value, the rotational speed of the motor is controlled to increase, so that the rotational speed of the gas-liquid separator (water-vapor separation wheel) increases, thereby effectively preventing liquid from entering the vacuum pumping device.

[0168] Figure 13 It is a schematic structural diagram of a floor brush assembly docked at a base station 900 according to an embodiment of the present disclosure. Figure 14 It is a schematic structural diagram of a base station 900 according to an embodiment of the present disclosure. Figure 15 is Figure 14 An enlarged schematic view of part C of Figure 16 It is a schematic diagram of the cooperation relationship between a base station 900 and a rotating bracket according to an embodiment of the present disclosure. Figure 17 is Figure 16 An enlarged view of part D of

[0169] As Figures 13 to 17 shown, the base station 900 of the present disclosure is arranged to facilitate the docking of the surface cleaning device. Specifically, the base station 900 of the present disclosure includes components such as a seat member 910, a tray 920, and an actuator 930.

[0170] The seat member 910 is arranged to be suitably placed on a position such as the ground. And an accommodation space is formed inside the seat member 910, and components such as a blower can be arranged in the accommodation space, so that a drying air flow can be formed by the blower.

[0171] Specifically, the seat member 910 has an upward opening, that is, the upper end of the accommodation space is open, and the tray 920 is arranged on the seat member 910 and can close the opening of the seat member 910.

[0172] An air inlet is formed on the seat member 910, and the air inlet is formed as the starting point of the drying air flow; at the same time, a gas passage is formed between the seat member 910 and the tray 920, and the fan can suck the air entering through the air inlet and discharge it to the gas passage; more preferably, the tray 920 includes an air outlet 924, and the air outlet 924 is communicated with the gas passage, so that the air outlet 924 can form the end point of the gas flow path. Correspondingly, the air sucked by the fan can be discharged to the outside of the base station 900 through the air outlet 924.

[0173] In a specific embodiment, a heating device may be provided in the gas passage, so that hot air can be discharged through the air outlet 924, and thus the stirring member 620 of the surface cleaning device can be dried by the hot air.

[0174] In the present disclosure, the tray 920 is configured such that at least a part of the tray 920 is located below the surface cleaning device when the surface cleaning device is docked at the base station 900.

[0175] A positioning groove 921 may be formed on the upper surface of the tray 920, and the positioning groove 921 is used to limit the position of the surface cleaning device. Specifically, the position of the surface cleaning device relative to the base station 900 is fixed by moving the rolling wheels of the surface cleaning device into the positioning groove 921.

[0176] Moreover, in order to prevent the rolling wheels from moving out of the positioning groove, a limiting portion 922 may be provided near the positioning groove 921, and the limiting portion 922 can prevent the movement of the rolling wheels, so that the surface cleaning device can be positioned more stably.

[0177] Preferably, the positioning groove 921 is formed as a first arc-shaped groove, and the surface of the limiting portion 922 near the positioning groove is also formed with a second arc-shaped groove. When the surface cleaning device is docked at the base station 900, both the first arc-shaped groove and the second arc-shaped groove are in contact with the rolling wheels.

[0178] Moreover, a cleaning groove 923 is also formed on the upper surface of the tray 920, and the shape of the cleaning groove 923 can be adapted to the shape of components such as the stirring body of the surface cleaning device. When the surface cleaning device is docked at the base station, the stirring body of the surface cleaning device can be arranged in the cleaning groove 923.

[0179] The actuating member 930 is disposed on the tray 920 and extends along the air outlet direction of the air outlet 924 of the tray 920; in the present disclosure, the actuating member 930 is used to drive the rotating bracket 650 to rotate and make the nozzle 640 rotate from the first operable position to the second operable position. Among them, the actuating member 930 extending along the air outlet direction of the air outlet 924 does not mean that the extending direction of the actuating member 930 is exactly the same as the air outlet direction of the air outlet 924, but it is sufficient that they are substantially the same.

[0180] That is, when the surface cleaning device is not docked at the base station, the nozzle 640 is in the first operable position; when the surface cleaning device is being placed on the base station, the actuator 930 will come into contact with the rotating bracket 650. When the surface cleaning device is further lowered and docked on the base station 900, due to the gravity of the surface cleaning device and the immovability of the actuator 930, the actuator 930 will push the rotating bracket 650 to rotate.

[0181] In a preferred embodiment, in the height direction, the position of the air outlet 924 of the tray 920 is higher than that of the cleaning tank 923. Thus, the cleaning tank 923 can store cleaning liquid, and the agitator 620 of the surface cleaning device can be self-cleaned through this cleaning liquid. At this time, the cleaning liquid will not enter the air outlet 924.

[0182] In terms of the height direction, one end of the actuator 930 is fixed to the tray 920, and this end is formed as a fixed end; in contrast, the other end of the actuator 930 is formed as a free end, and the free end is at a higher position relative to the fixed end. That is to say, compared with the fixed end, the free end is farther from the cleaning tank 923 of the tray 920.

[0183] However, in the projection on the horizontal plane, that is, when the base station 900 is placed on a substantially horizontal surface to be cleaned, the actuator 930 extends in a direction approaching the cleaning tank 923. That is to say, in one case, a part of the actuator 930 can extend directly above the cleaning tank 923, thereby facilitating the actuator 930 to push the rotating bracket 930 to act.

[0184] As Figure 15 shown, the actuator 930 of the present disclosure includes at least one actuator piece; wherein, when there are multiple actuator pieces, the multiple actuator pieces are arranged in parallel. In a specific embodiment, the number of the actuator pieces can be 5; correspondingly, through the multiple actuator pieces arranged in parallel, on the one hand, it is convenient for the forming of the actuator 930, and on the other hand, under the premise that the actuator 930 has a required strength, it has a lighter weight.

[0185] In terms of position, the tray 920 of the present disclosure includes a transverse direction, and the transverse direction of the tray 920 can be the same as the transverse direction of the floor brush assembly. Correspondingly, along the transverse direction, a plurality of air outlets 924 are provided, so that the air flow can be provided to the entire area of the agitator of the surface cleaning device through these air outlets 924 to prevent uneven drying of the agitator 620.

[0186] Preferably, the actuator 930 is located at the middle position in the lateral direction of the tray 920; more preferably, a plurality of air outlets 924 are provided on both sides in the lateral direction of the actuator 930. That is to say, the actuator 930 of the present disclosure can occupy only part of the positions of the air outlets 924, for example, it can occupy the position of only 1 air outlet 924.

[0187] The contour shape of the actuator 930 of the base station will be described below.

[0188] In the present disclosure, the actuator piece includes a first outer surface 931, and the tray 920 includes an end face 925. The first outer surface 931 and the end face 925 are in the same plane. Thus, when the actuator 930 of the present disclosure is integrally formed with the tray 920, the first outer surface 931 and the end face 925 can be manufactured synchronously, thereby improving the processing efficiency.

[0189] In addition, the actuator piece further includes a guiding surface 932. When the tray 920 is disposed substantially horizontally, the guiding surface 932 is disposed obliquely. Wherein, along the direction from top to bottom, the guiding surface 932 approaches the cleaning groove 923 of the tray 920. Thus, when the surface cleaning device is placed on the base station 900, the guiding surface 932 can first contact the rotating bracket 650 and / or the nozzle 640 to prevent the rotating bracket 650 and / or the nozzle 640 from being stuck by the actuator 930.

[0190] Specifically, the guiding surface 932 includes a first end (upper end) and a second end (lower end). Correspondingly, the first end of the guiding surface 932 is connected to the first outer surface 931. Preferably, a smooth connection is formed between the guiding surface 932 and the first outer surface.

[0191] The actuator piece further includes a force-applying surface 933. The upper end of the force-applying surface 933 is connected to the second end (i.e., the lower end) of the guiding surface 932. When the tray 920 is disposed substantially horizontally, the force-applying surface 933 is disposed obliquely. Wherein, along the direction from top to bottom, the force-applying surface 933 approaches the cleaning groove 923 of the tray 920. Thus, the rotating bracket 650 can be pushed to rotate through the force-applying surface 933.

[0192] In a preferred embodiment, when the surface cleaning device docks at the base station, the force-applying surface 933 can be closely attached to and disposed substantially parallel to the force-receiving surface 651D of the rotating bracket, thereby enabling the rotating bracket 650 to be stably held by the actuator 930.

[0193] More preferably, there is a first included angle between the guiding surface 932 and the horizontal plane, and a second included angle between the force-applying surface 933 and the horizontal plane. Both the first included angle and the second included angle are acute angles, and the first included angle is less than the second included angle. That is to say, the force-applying surface 933 of the present disclosure has a greater degree of inclination compared to the guiding surface 932.

[0194] In the description of this specification, the description with reference to terms such as "one embodiment / way", "some embodiments / ways", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment / way or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments / ways or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments / ways or examples described in this specification and the features of different embodiments / ways or examples.

[0195] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of these features. In the description of this application, "a plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0196] Those skilled in the art should understand that the above embodiments are only for clearly explaining the present disclosure and not for limiting the scope of the present disclosure. For those skilled in the art, other changes or modifications can be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A wet surface cleaning device, characterized in that: include: Upright body; a floor brush assembly pivotally connected to the upright body; At least one cleaning executive member, the cleaning executive member being located on the upright body or the floor brush assembly; at least one motor, the motor being used to provide power to the cleaning executive member; as well as At least one distance sensor is connected to the at least one motor and is located on at least one side of the floor brush assembly for sensing the distance between the side and an external object.

2. The wet surface cleaning device according to claim 1, characterized in that The distance sensor includes an optical sensor.

3. The wet surface cleaning device according to claim 1, characterized in that The floor brush assembly comprises a shell, the shell comprises a vertical side wall, and the at least one distance sensor is located on the side wall.

4. The wet surface cleaning device according to claim 3, characterized in that The at least one distance sensor is located on the side wall on the right side of the forward direction of the floor brush assembly.

5. The wet surface cleaning device according to claim 1, characterized in that The at least one cleaning executive member includes an agitating member, and the agitating member is arranged to be in frictional contact with the surface to be cleaned to clean the surface to be cleaned.

6. The wet surface cleaning device according to claim 1, characterized in that The at least one cleaning executive element includes a vacuum device for generating negative pressure, and the negative pressure can be provided to the floor brush assembly.

7. The wet surface cleaning device according to claim 1, characterized in that The at least one cleaning executive element includes the liquid supply pump, which is used to deliver the cleaning liquid to the surface to be cleaned or to the stirring element.

8. The wet surface cleaning device according to claim 1, characterized in that The at least one cleaning actuator comprises the peristaltic pump, which is used to deliver at least one cleaning medium different from the cleaning liquid to the surface to be cleaned.

9. The wet surface cleaning device according to claim 1, characterized in that The at least one cleaning actuator includes the gas-liquid separator for preventing liquid from entering the at least one motor when the upright body of the wet surface cleaning device is in a cleaning state substantially parallel to the surface to be cleaned.

10. The wet surface cleaning device according to claim 1, characterized in that Also included is a controller electrically connected to the at least one motor and the at least one distance sensor.

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