Floor brush assembly, surface cleaning equipment and surface cleaning system

Abstract

The utility model provides a floor brush assembly, surface cleaning equipment and a surface cleaning system.The floor brush assembly comprises a shell, a stirring piece, a suction nozzle, a foam generator and a nozzle; the shell comprises a bottom surface; the stirring piece is positioned in a suction cavity formed by the shell; the suction nozzle is in fluid communication with the recovery storage part and is used for removing polluted liquid from the stirring piece and the surface to be cleaned; the foam generator is used for generating foam; foam generated by the foam generator is conveyed outwards by the nozzle; wherein the nozzle can rotate between a first operable position and a second operable position, the first operable position is the plane where the nozzle faces the bottom face of the floor brush assembly and is basically perpendicular to the plane, the second operable position is the plane where the nozzle faces the bottom face of the floor brush assembly and forms a first angle with the plane, and the first angle is smaller than 90 degrees.

Description

Technical Field

[0001] The present disclosure relates to a floor brush assembly, a surface cleaning device, and a surface cleaning system. Background Art

[0002] When an 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, and 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] Generally, a wet surface cleaner usually includes: a cleaning liquid storage part for containing a cleaning solution; a recovery storage part for recovering contaminants recovered from the floor to be cleaned; a motor-driven vacuum source to form a vacuum flow path from the floor to be cleaned to the recovery storage part; a rechargeable battery to supply energy to each component; and a base station for charging the wet surface cleaner and post-cleaning maintenance.

[0004] Some wet surface cleaners in the prior art can supply foam to the surface to be cleaned, thereby enabling the surface to be cleaned more efficiently. Among them, the foam is a mixture of a cleaning liquid and a cleaning agent.

[0005] However, the foam nozzle of the existing wet surface cleaner has a fixed spraying direction, that is, the foam can only be used when the wet surface cleaner cleans the surface to be cleaned. When the wet surface cleaner performs self-cleaning, the foam cannot be supplied to the stirring member of the wet surface cleaner, reducing the self-cleaning effect of the wet surface cleaner. Summary of the Invention

[0006] In order to solve one of the above technical problems, the present disclosure provides a floor brush assembly, a surface cleaning device, and a surface cleaning system.

[0007] According to one aspect of the present disclosure, there is provided a floor brush assembly, which includes:

[0008] a housing, the housing including a bottom surface;

[0009] a stirring member, the stirring member being located in a suction cavity formed by the housing;

[0010] a suction nozzle, the suction nozzle being in fluid communication with a recovery storage part and being used to remove contaminated liquid from the stirring member and the surface to be cleaned;

[0011] a foam generator, the foam generator being used to generate foam; and

[0012] A nozzle that conveys the foam generated by the foam generator outward; wherein the nozzle is rotatable between a first operable position and a second operable position, the first operable position being that the nozzle faces the plane of the bottom surface of the floor brush assembly and is substantially perpendicular thereto, and the second operable position being that the nozzle faces the plane of the bottom surface of the floor brush assembly and forms a first angle therewith, the first angle being less than 90°.

[0013] For the floor brush assembly according to at least one embodiment of the present disclosure, the rotation of the nozzle between the first operable position and the second operable position is achieved by a rotating bracket.

[0014] For the floor brush assembly according to at least one embodiment of the present disclosure, the suction nozzle is located behind the stirring member; when the floor brush assembly cleans the surface to be cleaned, the nozzle is used to supply foam to the surface to be cleaned in front of the stirring member.

[0015] For the floor brush assembly according to at least one embodiment of the present disclosure, the housing includes a front end portion, the front end portion includes a groove portion, and at least a part of the rotating bracket is located in the groove portion.

[0016] For the floor brush assembly according to at least one embodiment of the present disclosure, the rotating bracket includes:

[0017] A base body formed with a foam passage, wherein both ends of the foam passage are respectively communicated with the foam generator and the nozzle; and

[0018] A shaft member, and the base body is rotatably arranged on the housing through the shaft member.

[0019] For the floor brush assembly according to at least one embodiment of the present disclosure, the base body includes a first surface and a second surface opposite to the first surface, wherein the first surface is used for installing the nozzle; the groove portion of the housing includes a limiting surface, and the second surface is used to cooperate with the limiting surface to limit the nozzle in the first operable position.

[0020] For the floor brush assembly according to at least one embodiment of the present disclosure, when the nozzle moves from the first operable position to the second operable position, the second surface moves away from the limiting surface.

[0021] For the floor brush assembly according to at least one embodiment of the present disclosure, the base body includes a force-bearing surface, and when a pressure is applied to the force-bearing surface, the pressure causes the rotating bracket to rotate and causes the nozzle installed on the rotating bracket to rotate in a direction approaching the second operable position.

[0022] For the floor brush assembly according to at least one embodiment of the present disclosure, the force-bearing surface is located at the front end of the base body.

[0023] The floor brush assembly according to at least one embodiment of the present disclosure, a return spring is provided on the shaft member, and the return spring is used to drive the rotation bracket to rotate so that the nozzle returns from the second operable position to the first operable position.

[0024] The floor brush assembly according to at least one embodiment of the present disclosure, the first operable position is the position of the nozzle when cleaning on the surface to be cleaned.

[0025] The floor brush assembly according to at least one embodiment of the present disclosure, the second operable position is the position of the nozzle when performing maintenance on the base station.

[0026] The floor brush assembly according to at least one embodiment of the present disclosure, the first angle is 10 - 85°.

[0027] According to another aspect of the present disclosure, there is provided a surface cleaning device, which includes:

[0028] A housing including a bottom surface;

[0029] A stirring member, the stirring member is located in the suction cavity formed by the housing;

[0030] A suction nozzle, the suction nozzle is in fluid communication with the recovery storage part and is used to remove the contaminated liquid from the stirring member and the surface to be cleaned;

[0031] A liquid dispenser, the liquid dispenser is used to provide cleaning liquid to the stirring member or the surface to be cleaned near the stirring member;

[0032] A foam generator, the foam generator is used to generate foam; and

[0033] A nozzle, the nozzle conveys the foam generated by the foam generator outward; wherein, the nozzle can rotate between a first operable position and a second operable position, the first operable position is that the nozzle faces the plane where the bottom surface of the floor brush assembly is located and is substantially perpendicular to it, and the second operable position is that the nozzle faces the plane where the bottom surface of the floor brush assembly is located and forms a first angle with it, and the first angle is less than 90°.

[0034] According to another aspect of the present disclosure, there is provided a surface cleaning system, which includes the above-mentioned floor brush assembly, or includes the above-mentioned surface cleaning device.

[0035] The surface cleaning system according to at least one embodiment of the present disclosure further includes a base station, and the base station includes:

[0036] A seat member;

[0037] A tray, the tray is arranged on the seat member; wherein, the tray includes an air outlet; and

[0038] An actuator, the actuator is disposed on the tray, and the actuator extends along the air outlet direction of the air outlet from the air outlet of the tray;

[0039] Wherein, when the surface cleaning device is docked at the base station, the actuator is used to drive the rotating bracket of the surface cleaning device to rotate, so that the nozzle moves from the first operable position to the second operable position.

[0040] According to the surface cleaning system of at least one embodiment of the present disclosure, the tray further includes a cleaning tank, and in the projection on the horizontal plane, the actuator extends in a direction approaching the cleaning tank.

[0041] According to the surface cleaning system of at least one embodiment of the present disclosure, the actuator includes at least one actuator piece; wherein, when there are multiple actuator pieces, the multiple actuator pieces are arranged in parallel.

[0042] According to the surface cleaning system of at least one embodiment of the present disclosure, the actuator piece includes a first outer surface, the tray includes an end face, and the first outer surface and the end face are in the same plane.

[0043] According to the surface cleaning system of at least one embodiment of the present disclosure, the actuator piece further includes a guiding surface, when the tray is disposed substantially horizontally, the guiding surface is disposed obliquely, wherein, along the direction from top to bottom, the guiding surface approaches the cleaning tank of the tray.

[0044] According to the surface cleaning system of at least one embodiment of the present disclosure, the actuator piece further includes a force-applying surface, the force-applying surface is connected to the guiding surface; when the tray is disposed substantially horizontally, the force-applying surface is disposed obliquely, wherein, along the direction from top to bottom, the force-applying surface approaches the cleaning tank of the tray.

[0045] According to the surface cleaning system of at least one embodiment of the present disclosure, the guiding surface has a first included angle with the horizontal plane, the force-applying surface has a second included angle with 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. Description of the Drawings

[0046] The drawings illustrate exemplary embodiments of the present disclosure and are used in conjunction with the description to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are included in this specification and form a part of this specification.

[0047] Figure 1 It is a schematic structural diagram of a surface cleaning system according to an embodiment of the present disclosure.

[0048] Figure 2Schematic structural diagram of a surface cleaning device according to an embodiment of the present disclosure.

[0049] Figure 3 Schematic structural diagram of a floor brush assembly according to an embodiment of the present disclosure.

[0050] Figure 4 Schematic structural diagram of the floor brush assembly from another angle according to an embodiment of the present disclosure.

[0051] Figure 5 Is Figure 4 Enlarged schematic diagram of part A.

[0052] Figure 6 Schematic structural diagram of the floor brush assembly docked at the base station according to an embodiment of the present disclosure.

[0053] Figure 7 Schematic partial structural diagram of a floor brush assembly according to an embodiment of the present disclosure.

[0054] Figure 8 Is Figure 7 Enlarged schematic diagram of part B.

[0055] Figure 9 Schematic structural diagram of a rotating bracket and a nozzle according to an embodiment of the present disclosure.

[0056] Figure 10 Schematic structural diagram of the rotating bracket and the nozzle from another angle according to an embodiment of the present disclosure.

[0057] Figure 11 Schematic structural diagram of a rotating bracket according to an embodiment of the present disclosure.

[0058] Figure 12 Schematic structural diagram of a nozzle according to an embodiment of the present disclosure.

[0059] Figure 13 Schematic structural diagram of the floor brush assembly docked at the base station according to an embodiment of the present disclosure.

[0060] Figure 14 Schematic structural diagram of a base station according to an embodiment of the present disclosure.

[0061] Figure 15 Is Figure 14 Enlarged schematic diagram of part C.

[0062] Figure 16 Schematic diagram of the cooperation relationship between the base station and the rotating bracket according to an embodiment of the present disclosure.

[0063] Figure 17 Is Figure 16The intention of magnifying part D.

[0064] The specific reference numerals in the figure are as follows:

[0065] 100 Handle part

[0066] 200 Frame part

[0067] 300 Cleaning liquid storage part

[0068] 400 Recycling storage part

[0069] 500 Connecting part

[0070] 600 Floor brush assembly

[0071] 610 Housing

[0072] 611 Front end part

[0073] 620 Stirring part

[0074] 630 Suction nozzle

[0075] 640 Nozzle

[0076] 641 First main body

[0077] 642 Second main body

[0078] 643 Notch

[0079] 650 Rotating bracket

[0080] 651 Substrate

[0081] 651A First surface

[0082] 651B Second surface

[0083] 651C Bracket part

[0084] 651D Force-receiving surface

[0085] 651E Bump

[0086] 651F Stopping part

[0087] 652 Shaft component

[0088] 653 Return spring

[0089] 900 Base station

[0090] 910 Seat component

[0091] 920 Tray

[0092] 921 Positioning groove

[0093] 922 Limit part

[0094] 923 Cleaning tank

[0095] 924 Air outlet

[0096] 925 End face

[0097] 930 Actuator

[0098] 931 First outer surface

[0099] 932 Guide surface

[0100] 933 Force - applying surface Detailed implementation mode

[0101] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and the implementation mode. It can be understood that the specific implementation mode described here is only used to explain the relevant content and does 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.

[0102] It should be noted that, without conflict, the implementation modes and the features in the implementation modes in the present disclosure 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 in conjunction with the implementation mode.

[0103] Unless otherwise specified, the exemplary implementation modes / embodiments shown are 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 modes / embodiments can be combined, separated, interchanged, and / or rearranged additionally.

[0104] In the accompanying drawings, hatching and / or shading are generally used to make the boundaries between adjacent components clear. Thus, unless stated, the presence or absence of hatching or shading does not convey or imply any preference or requirement for the specific material, material properties, dimensions, proportions, commonality between the shown components, and / or any other characteristics, attributes, properties, etc. of the components. Additionally, 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. Moreover, the same reference numerals denote the same components.

[0105] 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 intervening components. However, when a component is referred to as being "directly on" another component, "directly connected to" or "directly coupled to" another component, there are no intervening components. For this reason, the term "connected" can refer to physical connection, electrical connection, etc., and can have or not have intervening components.

[0106] For descriptive purposes, the present disclosure may use spatial relative terms such as "under", "below", "beneath", "lower", "above", "on", "over", "upper", and "side (e.g., as in "sidewall")" etc., so as to describe the relationship between one component and 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 drawings is flipped, a 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 can be otherwise positioned (e.g., rotated 90 degrees or at other orientations), and accordingly, the spatial relative descriptors used herein are to be interpreted.

[0107] 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 indicates otherwise, the singular forms "a", "an", and "the" are also intended to include the plural forms. In addition, when the terms "comprises" and / or "comprising" and their variants are used in this specification, it is stated that there are the stated features, integers, steps, operations, components, assemblies, and / or groups thereof, but do 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, so they are used to explain the inherent deviations of measured values, calculated values, and / or provided values that would be recognized by a person of ordinary skill in the art.

[0108] Figure 1 is a schematic structural diagram of a surface cleaning system according to an embodiment of the present disclosure.

[0109] 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.

[0110] 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 capable of performing wet cleaning on the surface to be cleaned, that is, it is formed as a wet surface cleaning device, and the liquid after cleaning the surface to be cleaned is recycled to the surface cleaning device.

[0111] The base station 900 is configured for the surface cleaning device to dock and is capable of supplying electrical energy to the surface cleaning device to charge the rechargeable battery of the surface cleaning device.

[0112] More preferably, the base station 900 is further 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. Thus, after the stirring member 620 is self-cleaned, the residual water on the stirring member 620 can be removed to prevent the stirring member 620 from generating peculiar smell.

[0113] 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.

[0114] Figure 2 It is a schematic structural diagram of a surface cleaning device according to an embodiment of the present disclosure.

[0115] 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.

[0116] 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 to perform wet cleaning on the surface to be cleaned through the floor brush assembly 600.

[0117] 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 in a substantially lying flat state (i.e., parallel to the surface to be cleaned), the surface cleaning device can be in the 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 state of stopping work, 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., thereby making the user experience of the surface cleaning device better.

[0118] The handle portion 100 can be arranged 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 force-bearing structure of the surface cleaning device, and both 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.

[0119] The cleaning liquid storage portion 300 is formed in the shape of a box to store the cleaning liquid in the cleaning liquid storage portion 300. In one embodiment, the cleaning liquid can be clean water. Of course, those skilled in the art should know that a mixture of clean water and a cleaning agent, etc. can also be stored in the cleaning liquid storage portion 300.

[0120] An accommodation space is formed on the frame portion 200, and the cleaning liquid storage portion 300 can be arranged in the accommodation space, and a part of the outer surface of the cleaning liquid storage portion 300 is formed as a part of the outer surface of the surface cleaning device.

[0121] In the present disclosure, the cleaning liquid storage portion 300 can be detached from the frame portion 200, and the cleaning liquid is filled manually by the user; of course, the cleaning liquid storage portion 300 of the present disclosure can also fill the cleaning liquid of the cleaning liquid storage portion 300 through the cleaning liquid interface provided on the frame portion 200.

[0122] Furthermore, when a cleaning liquid interface is provided on the frame portion 200, the cleaning liquid storage portion 300 can be arranged inside the frame portion 200, and at this time the cleaning liquid storage portion 300 does not form at least part of the outer surface of the surface cleaning device.

[0123] In the present disclosure, to achieve the cleaning of 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 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.

[0124] As Figure 1 shown, the frame part 200 forms a receiving space, and the recycling storage unit 400 is detachably arranged in the frame part 200 and located in the receiving space. When there is a large amount of liquid stored in the recycling storage unit 400, the user can remove the recycling storage unit 400, pour out the internal sewage and clean up the solid waste. At this time, a part of the outer surface of the recycling storage unit 400 forms a part of the outer surface of the surface cleaning device.

[0125] To recycle the liquid after cleaning the surface to be cleaned, the recycling storage unit 400 can be connected to the floor brush assembly 600 through a recycling pipeline. Correspondingly, the mixture of sewage and gas (dirty) can be recycled to the recycling storage unit 400 through the recycling pipeline.

[0126] Correspondingly, the surface cleaning device further includes a vacuum pumping device (not shown in the figure). Among them, the vacuum pumping device can generate negative pressure and provide the negative pressure to the recycling storage unit 400, so as to realize the forced flow of gas and sewage in the recycling 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.

[0127] 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.

[0128] Figure 3 is a schematic structural diagram of a floor brush assembly according to an embodiment of the present disclosure. Figure 4 is a schematic structural diagram of the floor brush assembly from another angle according to an embodiment of the present disclosure. Figure 5 is Figure 4 an enlarged schematic view of part A of

[0129] 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.

[0130] The housing 610 is configured to be connected to the frame portion 200 through the connecting portion 500, and the housing 610 is capable of moving on the surface to be cleaned. For example, the housing 610 may include two rolling wheels. The surface of the housing 610 close to the surface to be cleaned is formed as the bottom surface of the housing 610. 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. Among them, 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 approaches the user.

[0131] The housing 610 can define a suction chamber for the floor brush assembly. The suction chamber is located in the front half of the floor brush assembly 600 so as to accommodate the stirring member 620 in the suction chamber. Correspondingly, the stirring member 620 is also located in the front half of the floor brush assembly 600.

[0132] A 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 is formed as 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 portion 400 of the surface cleaning device.

[0133] The stirring member 620 is configured to agitate the surface to be cleaned. That is to say, 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 be in 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 to achieve the cleaning of the surface to be cleaned. During the frictional contact between the stirring member 620 and the surface to be cleaned, the cleaning liquid can be provided to the stirring member 620 or the surface to be cleaned near the stirring member 620, so as to achieve the wet cleaning of the surface to be cleaned.

[0134] That is to say, the surface cleaning device of the present disclosure may include a liquid dispenser that can provide the 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 then provide it to the liquid outlet component, and provide the pressurized cleaning liquid to the stirring member 620 or the surface to be cleaned near the stirring member 620 through the liquid outlet component.

[0135] In the present disclosure, the liquid outlet component may be formed in the form of a nozzle. Of course, it may also be formed in the form of a water spraying hole on the housing 610. This is not elaborated one by one in the present disclosure.

[0136] 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 part 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.

[0137] The foam generator of the present disclosure can be arranged in the housing 610. In another embodiment, the foam generator can also be arranged in the frame part 200 and communicated with the nozzle 640 through the foam delivery pipeline.

[0138] 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 where the bottom surface of the floor brush assembly 600 is located and is substantially perpendicular to it. The second operable position is that the nozzle 640 faces the plane where the bottom surface of the floor brush assembly 600 is located and forms a first angle α with it, and the first angle is less than 90°.

[0139] In one case, as Figure 4 and Figure 5 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 supply 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.

[0140] Figure 6 is a schematic structural diagram of the floor brush assembly docked at the base station according to an embodiment of the present disclosure.

[0141] 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 supply 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.

[0142] That is to say, when the nozzle 640 is in the second operable position, in the direction from top to bottom, the nozzle 640 is arranged to be close to the axis of the stirring member 620. Thus, 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.

[0143] 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. Thus, 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.

[0144] In a preferred embodiment, the first angle is 10 - 85°. Correspondingly, within this range of the first angle, the nozzle 640 can only provide foam to the cleaning tank 923 or the stirring member 620, and will not provide 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 to work at a preset power for a preset time), the cleaning effect of the stirring member 620 is improved.

[0145] Figure 7 It 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 It is a structural schematic diagram of a rotating bracket and a nozzle according to an embodiment of the present disclosure. Figure 10 It 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 It is a structural schematic diagram of a rotating bracket according to an embodiment of the present disclosure. Figure 12 It is a structural schematic diagram of a nozzle according to an embodiment of the present disclosure.

[0146] The rotation of the nozzle 640 between the first operable position and the second operable position is realized through the rotating bracket 650; that is to say, the nozzle 640 of the present disclosure can be installed on the rotating bracket 650. Thus, when the rotating bracket 650 rotates, the notch of the nozzle 640 can have different orientations. Correspondingly, the nozzle 640 can be in the first operable position or the second operable position.

[0147] 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 provide the foam generated by the foam generator to the stirring member 620. More preferably, the foam generator can generate high-pressure foam, or the foam generated by the foam generator can be pressurized by a peristaltic pump and then provided to the nozzle 640, and these high-pressure foams are ejected from the nozzle 640 at high speed, so that the foam has a large coverage area.

[0148] Structurally, the nozzle 640 includes a first body 641 and a second body 642 connected to each other; wherein, the first body 641 and the second body 642 can be integrally formed or separately formed and are installed or fixed together.

[0149] In the present disclosure, the first body 641 is formed as a hemispherical thin-walled part, so that the inside of the first body 641 forms a hemispherical buffer cavity, that is, the outer surface of the first body 641 is a hemispherical surface, and correspondingly, the inner surface of the first body 641 is a hemispherical surface, thereby making the first body 641 have a generally uniform wall thickness as a whole.

[0150] At least a part 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 generally cylindrical shape. In the present disclosure, preferably, the outer diameter (diameter) of the cylindrical part of the second body 642 is the same as the diameter of the outer surface of the first body 641.

[0151] The second body 642 includes a conveying channel for conveying foam, and the conveying channel communicates with the hemispherical buffer cavity; the conveying channel is formed in a cylindrical shape, and the inner diameter (diameter) of the conveying channel is the same as the diameter of the inner surface of the first body 641, so that the foam has as small a resistance as possible during the conveying process.

[0152] 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 arranged 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.

[0153] 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 approximately in the horizontal direction. Wherein, the horizontal direction is the axial direction of the stirring member 620.

[0154] In a more preferred embodiment, at least a portion of the incision 643 extends into 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 incision 643.

[0155] At this time, the inner diameter of the delivery channel is smaller than the projected length of the incision 643 on the cross-section of the delivery channel, thereby enabling the incision 643 to have a maximized foam radiation area.

[0156] In a preferred solution, when the nozzle 640 is in the first operable position, there is a first distance between the incision 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 incision 643 of the nozzle 640 and the inner wall surface of the cleaning tank 923, or there is a third distance between the incision 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.

[0157] 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.

[0158] 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, thereby cleaning the surface to be cleaned through the foam.

[0159] 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 first determined, 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.

[0160] 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, wherein the first pressure is greater than the second pressure, and the second pressure is greater than the third pressure. Thus, 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.

[0161] The other end of the second body 642 of the nozzle 640 can be connected and fixed to the rotating bracket 650, whereby the nozzle 640 can be driven to swing by the rotating bracket 650, and thus the position of the nozzle 640 of the present disclosure can be conveniently controlled.

[0162] As Figure 7 and Figure 8 shown, the housing 610 of the present disclosure includes a front end portion 611, and the front end portion 611 includes a groove portion. At least a 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.

[0163] In a specific embodiment, as Figure 9 and Figure 10 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 passage, wherein both ends of the foam passage are respectively communicated with the foam generator and the nozzle 640; specifically, the foam passage can be communicated with the delivery passage 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.

[0164] In the present disclosure, through holes can be formed on two side walls in the lateral direction of the groove portion, and one end of the shaft member 652 is rotatably arranged in the through holes. Accordingly, 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 lateral 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 lateral direction.

[0165] Thus, the rotating bracket 650 of the present disclosure can rotate a preset angle relative to the housing 610, and accordingly, the nozzle 640 is in different positions.

[0166] 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, both 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.

[0167] 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.

[0168] The groove portion of the housing 610 includes a limiting surface. In a preferred embodiment, since the groove portion of the housing 610 can 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 restricted to the first operable position.

[0169] The base body 651 includes two bracket portions 651C, which are respectively located at both 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., 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. Correspondingly, the rotating bracket 650 formed by the above structure can be more conveniently installed on the housing 610.

[0170] 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 rotating bracket 650 in one direction and does not limit the rotation of the rotating bracket 650 in the opposite direction.

[0171] In the present disclosure, the base body 651 includes a force-bearing surface 651D. When a pressure is applied to the force-bearing surface 651D, the pressure causes the rotating bracket 650 to rotate and the nozzle 640 to rotate in a direction approaching the second operable position.

[0172] In a preferred embodiment, the force-receiving surface 651D may 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 is arranged to protrude 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 forced by the force-applying surface of the actuator 930 of the base station 900, and during the process of applying force to the rotation bracket 650, it will not touch the nozzle 640, so that the nozzle 640 will not be damaged.

[0173] In the present disclosure, a return spring 653 is arranged 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 may be a torsion spring, and the base body 651 includes a stop portion 651F, and the stop portion 651F 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 is reset from the second operable position to the first operable position.

[0174] In other words, when the surface cleaning device leaves the base station 900, since the base station 900 can no longer apply 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 where the nozzle 640 is in the first operable position.

[0175] Figure 13 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 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 is a schematic diagram of the cooperation relationship between a base station 900 and a rotation bracket according to an embodiment of the present disclosure. Figure 17 is Figure 16 an enlarged schematic view of part D of

[0176] 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.

[0177] The seat member 910 is arranged to be suitably placed on the ground or other positions. 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.

[0178] 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 disposed on the seat member 910 and can close the opening of the seat member 910.

[0179] 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 blower 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 communicates with the gas passage, so that the air outlet 924 can form the end point of the gas flow path. Accordingly, the air sucked by the blower can be discharged to the outside of the base station 900 through the air outlet 924.

[0180] 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.

[0181] In the present disclosure, the tray 920 is configured such that when the surface cleaning device is docked at the base station 900, at least a part of the tray 920 is located below the surface cleaning device.

[0182] 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.

[0183] Moreover, in order to prevent the rolling wheels from moving out of the positioning groove, a limiting portion 922 may be further 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.

[0184] Preferably, the positioning groove 921 is formed as a first arc-shaped groove, and the surface of the limiting portion 922 close to 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.

[0185] Moreover, a cleaning groove 923 is further 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 620 of the surface cleaning device. When the surface cleaning device is docked at the base station, the stirring body 620 of the surface cleaning device can be disposed in the cleaning groove 923.

[0186] The actuator 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 actuator 930 is used to drive the rotating bracket 650 to rotate, and the nozzle 640 is rotated from the first operable position to the second operable position. Among them, the actuator 930 extending along the air outlet direction of the air outlet 924 does not mean that the extension direction of the actuator 930 is exactly the same as the air outlet direction of the air outlet 924, but only approximately the same.

[0187] That is to say, 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 contact the rotating bracket 650. When the surface cleaning device is further lowered and docked on the base station 900, under the action of the gravity of the surface cleaning device and since the actuator 930 is immovable, the actuator 930 will push the rotating bracket 650 to rotate.

[0188] 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 liquid can be stored in the cleaning tank 923, and the self-cleaning of the stirring member 620 of the surface cleaning device can be achieved through the cleaning liquid. At this time, the cleaning liquid will not enter the air outlet 924.

[0189] 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.

[0190] 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.

[0191] As Figure 15 shown, the actuator 930 of the present disclosure includes at least one actuator piece; among them, 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.

[0192] In terms of position, the tray 920 of the present disclosure includes a lateral direction, and the lateral direction of the tray 920 can be the same as that of the floor brush assembly. Accordingly, along the lateral direction, a plurality of air outlets 924 are provided, so that air flow can be provided to all areas of the agitator of the surface cleaning device through these air outlets 924 to prevent uneven drying of the agitator 620.

[0193] 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 only occupy the position of some air outlets 924, for example, only occupy the position of 1 air outlet 924.

[0194] The contour shape of the actuator 930 of the base station will be described below.

[0195] 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.

[0196] 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. Among them, 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.

[0197] Specifically, the guiding surface 932 includes a first end (upper end) and a second end (lower end). Accordingly, the first end of the guiding surface 932 is connected to the first outer surface 931. Preferably, the guiding surface 932 and the first outer surface 931 are formed into a smooth connection.

[0198] 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. Among them, 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.

[0199] 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 arranged substantially parallel to the force - receiving surface 651D of the rotating bracket, whereby the rotating bracket 650 can be stably held by the actuating member 930.

[0200] 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.

[0201] In the present disclosure, the degree of inclination of the force - applying surface 933, that is, the magnitude of the second included angle, can be set according to the magnitude of the first included angle. For example, the first included angle and the second included angle have the same magnitude, so that when the nozzle 640 is in the second operable position, the force - receiving surface of the rotating bracket 650 can be substantially parallel to the force - applying surface 933.

[0202] In the description of this specification, the description with reference to terms such as "an 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 the present application. In this specification, the schematic expressions of the above - mentioned 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.

[0203] 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 such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0204] Those skilled in the art should understand that the above - mentioned embodiments are only for clearly explaining the present disclosure and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or variations can be made on the basis of the above - mentioned disclosure, and these changes or variations are still within the scope of the present disclosure.

Claims

1. A floor brush assembly, characterized in that: include: a housing, the housing comprising a bottom surface; A stirring member, wherein the stirring member is located in the suction cavity formed by the shell; a suction nozzle in fluid communication with the recovery reservoir and for removing contaminated liquid from the agitator and the surface to be cleaned; A foam generator, wherein the foam generator is used to generate foam; as well as A nozzle, which conveys the foam generated by the foam generator to the outside; wherein the nozzle can rotate between a first operable position and a second operable position, the first operable position is that the nozzle is facing the plane where the bottom surface of the floor brush assembly is located and is basically perpendicular to it, and the second operable position is that the nozzle is facing the plane where the bottom surface of the floor brush assembly is located and forms a first angle with it, and the first angle is less than 90°.

2. The floor brush assembly according to claim 1, characterized in that: The nozzle is rotated between the first operable position and the second operable position by rotating the bracket.

3. The floor brush assembly according to claim 2, characterized in that: The suction nozzle is located behind the stirring member; when the brush assembly cleans the surface to be cleaned, the nozzle is used to provide foam to the surface to be cleaned in front of the stirring member.

4. The floor brush assembly according to claim 3, characterized in that: The housing comprises a front end portion, the front end portion comprises a groove portion, and at least a portion of the rotating bracket is located in the groove portion.

5. The floor brush assembly according to claim 4, characterized in that: The rotating bracket comprises: A base body, wherein the base body is formed with a foam channel, wherein two ends of the foam channel are respectively connected to the foam generator and the nozzle; and A shaft component, through which the base body is rotatably arranged on the shell.

6. The floor brush assembly according to claim 5, characterized in that: The base includes a first surface and a second surface opposite to the first surface, wherein the first surface is used to install the nozzle; the groove portion of the shell includes a limiting surface, and the second surface is used to cooperate with the limiting surface to limit the nozzle to a first operable position.

7. The floor brush assembly according to claim 6, characterized in that: When the nozzle moves from the first operable position to the second operable position, the second surface moves away from the limiting surface.

8. The floor brush assembly according to claim 5, characterized in that: The base comprises a force-bearing surface. When pressure is applied to the force-bearing surface, the pressure causes the rotating bracket to rotate and causes the nozzle mounted on the rotating bracket to rotate in a direction close to the second operable position.

9. The floor brush assembly according to claim 8, characterized in that: The force-bearing surface is located at the front end of the base.

10. The floor brush assembly according to claim 5, characterized in that: The shaft component is provided with a return spring, and the return spring is used to drive the rotating bracket to rotate so that the nozzle is returned from the second operable position to the first operable position.

11. The floor brush assembly according to claim 1, characterized in that: The first operable position is the position of the nozzle when cleaning on the surface to be cleaned.

12. The floor brush assembly according to claim 1, characterized in that: The second operable position is the position of the nozzle when maintenance is performed on the base station.

13. The floor brush assembly according to claim 1, characterized in that: The first angle is 10-85°.

14. A surface cleaning device, characterized in that: include: A housing, including a bottom surface; A stirring member, wherein the stirring member is located in the suction cavity formed by the shell; a suction nozzle in fluid communication with the recovery reservoir and for removing contaminated liquid from the agitator and the surface to be cleaned; A liquid distributor, the liquid distributor is used to provide cleaning liquid to the stirring member or the surface to be cleaned near the stirring member; A foam generator, wherein the foam generator is used to generate foam; as well as A nozzle, which conveys the foam generated by the foam generator to the outside; wherein the nozzle can rotate between a first operable position and a second operable position, the first operable position is that the nozzle is facing the plane where the bottom surface of the floor brush assembly is located and is basically perpendicular to it, and the second operable position is that the nozzle is facing the plane where the bottom surface of the floor brush assembly is located and forms a first angle with it, and the first angle is less than 90°.

15. A surface cleaning system, characterized in that: The invention comprises a floor brush assembly according to any one of claims 1 to 13, or a surface cleaning device according to claim 14.

16. The surface cleaning system of claim 15, wherein: Also included is a base station, the base station comprising: Seat components; a tray, the tray being disposed on the seat component; wherein the tray comprises an air outlet; and an actuating member, the actuating member being disposed on the tray and extending from the air outlet of the tray along the air outlet direction of the air outlet; Wherein, when the surface cleaning device is docked at the base station, the actuating member is used to drive the rotating bracket of the surface cleaning device to rotate, so that the nozzle moves from the first operable position to the second operable position.

17. The surface cleaning system of claim 16, wherein: The tray further comprises a cleaning slot, and in the projection on the horizontal plane, the actuating member extends in a direction approaching the cleaning slot.

18. The surface cleaning system of claim 16, wherein: The actuating member comprises at least one actuating sheet; wherein, when there are multiple actuating sheets, the multiple actuating sheets are arranged in parallel.

19. The surface cleaning system of claim 18, wherein: The actuating plate includes a first outer surface, the tray includes an end surface, and the first outer surface and the end surface are in the same plane.

20. The surface cleaning system of claim 19, wherein: The actuating piece further includes a guide surface which is disposed obliquely when the tray is disposed substantially horizontally, wherein the guide surface approaches the cleaning slot of the tray in a direction from top to bottom.

21. The surface cleaning system of claim 20, wherein: The actuating piece further comprises a force applying surface connected to the guide surface; when the tray is arranged substantially horizontally, the force applying surface is arranged obliquely, wherein the force applying surface approaches the cleaning slot of the tray in a direction from top to bottom.

22. The surface cleaning system of claim 21, wherein: A first angle is formed between the guide surface and the horizontal plane, a second angle is formed between the force-applying surface and the horizontal plane, the first angle and the second angle are both acute angles, and the first angle is smaller than the second angle.

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