Floor brush assembly, surface cleaning equipment and surface cleaning system

Abstract

The invention 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 located in a suction cavity formed by the shell and used for being matched with the cleaning medium to scrub the surface to be cleaned. The stirring part is adjacent to the suction nozzle, and the suction nozzle is in fluid communication with the recycling storage part and used for removing contaminated liquid from the stirring part 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] This disclosure relates to a floor brush assembly, surface cleaning equipment, and surface cleaning system. Background Technology

[0002] Existing floor cleaners apply cleaning liquid to the surface to be cleaned, wetting it. The surface is then wetted through frictional contact between the agitator of the brush assembly and the surface. The used cleaning liquid is then stored in a recycling unit as contaminated cleaning fluid.

[0003] Generally, wet surface cleaners typically include: a cleaning solution reservoir for holding the cleaning solution; a recovery reservoir for collecting contaminants recovered from the cleaned floor; a motor-driven vacuum source to create a vacuum flow path from the cleaned floor to the recovery reservoir; a rechargeable battery to power the components; and a base station for charging and post-cleaning maintenance of the wet surface cleaner.

[0004] Some existing wet surface cleaners can provide foam to the surface to be cleaned, thereby enabling the surface to be cleaned more efficiently. This foam is a mixture of cleaning liquid and detergent.

[0005] However, the foam nozzles of existing wet surface cleaners have a fixed spray direction, meaning that the foam can only be used when the wet surface cleaner is cleaning the surface to be cleaned. When the wet surface cleaner is self-cleaning, the foam cannot be supplied to the agitator of the wet surface cleaner, which reduces the self-cleaning effect of the wet surface cleaner. Summary of the Invention

[0006] To address one of the aforementioned technical problems, this disclosure provides a floor brush assembly, a surface cleaning device, and a surface cleaning system.

[0007] According to one aspect of this disclosure, a floor brush assembly is provided, comprising:

[0008] The housing includes a bottom surface;

[0009] A stirring element, located within the suction chamber formed by the housing, is used to work with the cleaning medium to scrub the surface to be cleaned.

[0010] A suction nozzle is provided, wherein the agitator is adjacent to the suction nozzle, the suction nozzle is in fluid communication with the recovery storage section, and is used to remove contaminated liquid from the agitator and the surface to be cleaned;

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

[0012] The nozzle delivers 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 to it, 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 with it, the first angle being less than 90°.

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

[0014] According to at least one embodiment of the floor brush assembly of the present disclosure, the nozzle is located behind the agitator; when the floor 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 agitator.

[0015] According to at least one embodiment of the floor brush assembly of the present disclosure, the housing includes a front end portion, the front end portion including a recess, and at least a portion of the rotating bracket is located within the recess.

[0016] According to at least one embodiment of the floor brush assembly of this disclosure, the rotating bracket includes:

[0017] A matrix having foam channels formed therein, wherein both ends of the foam channels are respectively connected to a foam generator and a nozzle; and

[0018] A shaft component, wherein the base is rotatably mounted on the housing via the shaft component.

[0019] According to at least one embodiment of the floor brush assembly of the present disclosure, the base includes a first surface and a second surface opposite to the first surface, wherein the first surface is used for mounting a nozzle; the recess of the housing includes a limiting surface, and the second surface is used to engage with the limiting surface to restrict the nozzle to a first operable position.

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

[0021] According to at least one embodiment of the floor brush assembly of the present disclosure, the substrate includes a force-bearing surface, which, when pressure is applied to the force-bearing surface, causes a rotating bracket to rotate and causes a nozzle mounted on the rotating bracket to rotate toward a direction approaching a second operable position.

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

[0023] According to at least one embodiment of the floor brush assembly of the present disclosure, a return spring is provided on the shaft component, the return spring being used to drive the rotating bracket to rotate so that the nozzle is reset from a second operable position to a first operable position.

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

[0025] According to at least one embodiment of the ground brush assembly of this disclosure, the second operable position is the position of the nozzle when maintenance is performed on the base station.

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

[0027] According to another aspect of this disclosure, a surface cleaning apparatus is provided, comprising:

[0028] The casing, including the bottom surface;

[0029] A stirring element, located within the suction chamber formed by the housing, is used to work with the cleaning medium to scrub the surface to be cleaned.

[0030] A suction nozzle is provided, wherein the agitator is adjacent to the suction nozzle, the suction nozzle is in fluid communication with the recovery storage section, and is used to remove contaminated liquid from the agitator and the surface to be cleaned;

[0031] A liquid dispenser for supplying cleaning liquid to a stirring element or a surface to be cleaned in the vicinity of the stirring element;

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

[0033] The nozzle delivers 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 to it, 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 with it, the first angle being less than 90°.

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

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

[0036] Seat components;

[0037] A tray, the tray being disposed on the seat component; wherein the tray includes an air outlet; and

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

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

[0040] According to at least one embodiment of the surface cleaning system of this disclosure, the tray further includes a cleaning groove, and the actuator extends toward the cleaning groove in a direction that is close to the projection of the horizontal plane.

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

[0042] According to at least one embodiment of the surface cleaning system of the present disclosure, the actuating plate 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 at least one embodiment of the surface cleaning system of the present disclosure, the actuating plate further includes a guide surface that is inclined when the tray is set generally horizontally, wherein the guide surface is close to the cleaning groove of the tray in a top-to-bottom direction.

[0044] According to at least one embodiment of the surface cleaning system of this disclosure, the actuating plate further includes a force-applying surface connected to the guide surface; when the tray is set generally horizontally, the force-applying surface is set at an angle, wherein, in a top-to-bottom direction, the force-applying surface approaches the cleaning groove of the tray.

[0045] According to at least one embodiment of the surface cleaning system of the present disclosure, the guide surface has a first angle with the horizontal plane, and the force-applying surface has a second angle with the horizontal plane, both the first angle and the second angle being acute angles, and the first angle being smaller than the second angle. Attached Figure Description

[0046] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0047] Figure 1 This is a schematic diagram of the structure of a surface cleaning system according to one embodiment of the present disclosure.

[0048] Figure 2 This is a schematic diagram of the structure of a surface cleaning device according to one embodiment of the present disclosure.

[0049] Figure 3 This is a schematic diagram of the structure of a floor brush assembly according to one embodiment of the present disclosure.

[0050] Figure 4 This is a structural schematic diagram of a floor brush assembly according to one embodiment of the present disclosure from another angle.

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

[0052] Figure 6 This is a schematic diagram of a ground brush assembly docked at a base station according to one embodiment of the present disclosure.

[0053] Figure 7 This is a partial structural schematic diagram of a floor brush assembly according to one embodiment of the present disclosure.

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

[0055] Figure 9 This is a schematic diagram of the structure of the rotating bracket and nozzle according to one embodiment of the present disclosure.

[0056] Figure 10 This is a structural schematic diagram of the rotating bracket and nozzle at another angle according to one embodiment of the present disclosure.

[0057] Figure 11 This is a schematic diagram of the structure of a rotating bracket according to one embodiment of the present disclosure.

[0058] Figure 12 This is a schematic diagram of the nozzle structure according to one embodiment of the present disclosure.

[0059] Figure 13 This is a schematic diagram of a ground brush assembly docked at a base station according to one embodiment of the present disclosure.

[0060] Figure 14 This is a schematic diagram of the structure of a base station according to one embodiment of the present disclosure.

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

[0062] Figure 16 This is a schematic diagram illustrating the cooperation relationship between a base station and a rotating bracket according to one embodiment of this disclosure.

[0063] Figure 17 yes Figure 16 The intention is to enlarge part D.

[0064] The specific labels in the attached figures are as follows:

[0065] 100 handle part

[0066] 200 Frame Section

[0067] 300 Cleaning Liquid Storage Department

[0068] 400 Recycling Storage Department

[0069] 500 connecting part

[0070] 600 floor brush component

[0071] 610 housing

[0072] 611 front end

[0073] 620 mixing components

[0074] 630 nozzle

[0075] 640 nozzle

[0076] 641 First Subject

[0077] 642 Second Subject

[0078] 643 incision

[0079] 650 rotating bracket

[0080] 651 matrix

[0081] 651A First Surface

[0082] 651B Second Surface

[0083] 651C bracket section

[0084] 651D stress-bearing surface

[0085] 651E bump

[0086] 651F stop section

[0087] 652 shaft components

[0088] 653 return spring

[0089] 900 base station

[0090] 910 components

[0091] 920 pallets

[0092] 921 positioning groove

[0093] 922 Limiting 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-applied surface. Detailed Implementation

[0101] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0102] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0103] Unless otherwise stated, the exemplary implementations / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of various implementations / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.

[0104] The use of crosshairs and / or shading in the accompanying drawings is generally used to clarify the boundaries between adjacent components. Thus, unless otherwise stated, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for the specific material, material properties, dimensions, proportions, commonalities between the illustrated components, or any other characteristics, properties, etc., of the components. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, 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 "joined to" another component, the component may be directly on, directly connected to, or directly joined to the other component, or there may be intermediate components. However, when a component is referred to as being "directly on" another component, "directly connected to," or "directly joined to" another component, there are no intermediate components. Therefore, the term "connection" can refer to a physical connection, an electrical connection, etc., and may or may not have intermediate components.

[0106] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations 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 “below” or “under” another component or feature would subsequently be positioned “above” said other component or feature. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0107] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, 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 rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

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

[0109] like Figure 1 and Figure 2 As shown, this 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 clean the surface to be cleaned (e.g., floor surface, etc.). Preferably, the surface cleaning device is capable of wet cleaning of the surface to be cleaned, i.e., it is configured as a wet surface cleaning device, and the liquid after cleaning the surface to be cleaned is recycled back to the surface cleaning device.

[0111] The base station 900 is configured for docking of surface cleaning equipment and is capable of providing power to the surface cleaning equipment to charge its rechargeable battery.

[0112] More preferably, the base station 900 can also provide hot air to the surface cleaning device to dry the agitator 620 of the surface cleaning device, thereby removing residual water on the agitator 620 after the agitator 620 is self-cleaned and preventing the agitator 620 from producing odors.

[0113] This disclosure first provides a detailed description of the structure of the surface cleaning equipment, and then provides a detailed description of the structure of the base station 900 below.

[0114] Figure 2 This is a schematic diagram of the structure of a surface cleaning device according to one embodiment of the present disclosure.

[0115] like Figure 1 and Figure 2 As shown, the surface cleaning device may include components such as a handle 100, a frame 200, a cleaning liquid storage unit 300, a recycling storage unit 400, a connecting part 500, and a floor brush assembly 600.

[0116] In use, the surface cleaning apparatus of this disclosure has a floor brush assembly 600 configured to move on the surface to be cleaned, so as to perform wet cleaning on the surface to be cleaned by means of the floor brush assembly 600.

[0117] The handle 100 is used to operate the surface cleaning device. More specifically, on the one hand, the operator can control the posture of the surface cleaning device by operating the handle 100. For example, when the frame 200 of the surface cleaning device is in an inclined state (i.e., at an angle of approximately 60° to the surface to be cleaned) or in a roughly flat state (i.e., roughly parallel to the surface to be cleaned), the surface cleaning device can be in cleaning mode and can clean the surface to be cleaned. When the frame 200 of the surface cleaning device is in a vertical state, the surface cleaning device can be in a stopped state, or when the surface cleaning device is docked at the base station 900, the frame 200 of the surface cleaning device is also in a roughly vertical state. On the other hand, physical buttons can be provided on the handle 100, so that the surface cleaning device can be controlled by these physical buttons, such as controlling the start and stop of the surface cleaning device, as well as controlling the liquid supply speed and suction power of the surface cleaning device, thereby improving the user experience of the surface cleaning device.

[0118] The handle portion 100 can be provided at the upper end of the frame portion 200, so that the surface cleaning device can be operated by operating the handle portion 100. In this disclosure, the frame portion 200 is formed as the main load-bearing structure of the surface cleaning device, and the cleaning liquid storage portion 300 and the recovery storage portion 400 of the surface cleaning device can both be directly or indirectly fixed to the frame portion 200.

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

[0120] A receiving space is formed on the frame portion 200, and the cleaning liquid storage portion 300 can be disposed in the receiving space, such that a portion of the outer surface of the cleaning liquid storage portion 300 is formed as part of the outer surface of the surface cleaning device.

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

[0122] Furthermore, when a cleaning liquid interface is provided on the frame portion 200, the cleaning liquid storage portion 300 can be provided inside the frame portion 200. In this case, the cleaning liquid storage portion 300 is not formed as at least part of the outer surface of the surface cleaning device.

[0123] In this disclosure, in order to clean the surface to be cleaned, the cleaning liquid storage unit 300 is connected to the floor brush assembly 600 at least through a cleaning liquid pipeline, thereby providing the cleaning liquid to the floor brush assembly 600. On the one hand, the cleaning liquid can be used to directly clean the surface to be cleaned, and on the other hand, the cleaning liquid can be mixed with cleaning agents to form foam, and the surface to be cleaned can be cleaned through the foam.

[0124] like Figure 1 As shown, the frame portion 200 has a receiving space, and the recycling storage portion 400 is detachably disposed in the frame portion 200 and located within the receiving space, so that when there is a large amount of liquid stored in the recycling storage portion 400, the user can remove the recycling storage portion 400, pour out the sewage inside and clean up the solid waste. At this time, part of the outer surface of the recycling storage portion 400 forms part of the outer surface of the surface cleaning device.

[0125] In order to recover the liquid after cleaning the surface, the recovery storage unit 400 can be connected to the floor brush assembly 600 through a recovery pipeline. Accordingly, the mixture of sewage and gas (dirt) can be recovered to the recovery storage unit 400 through the recovery pipeline.

[0126] Accordingly, the surface cleaning equipment also includes a vacuum device (not shown in the figure), which generates negative pressure and provides this negative pressure to the recovery storage unit 400, thereby achieving forced flow of gas and wastewater in the recovery pipeline. In this disclosure, the gas discharged from the vacuum device can flow to the outside of the surface cleaning equipment through gaps on a portion of the outer surface of the surface cleaning equipment.

[0127] The frame portion 200 is connected to the floor brush assembly 600 via the connecting portion 500, thereby making the frame portion 200 pivotally connected to the floor brush assembly 600. In this disclosure, the frame portion 200 has at least two rotational degrees of freedom relative to the floor brush assembly 600, thereby enabling the user to operate the surface cleaning equipment more conveniently.

[0128] Figure 3 This is a schematic diagram of the structure of a floor brush assembly according to one embodiment of the present disclosure. Figure 4 This is a structural schematic diagram of a floor brush assembly according to one embodiment of the present disclosure from another angle. Figure 5 yes Figure 4 Enlarged schematic diagram of part A.

[0129] like Figures 3 to 5 As shown, the floor brush assembly 600 of this disclosure may include a housing 610, an agitator 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 via the connecting portion 500, and the housing 610 is adaptable to move on the surface to be cleaned; for example, the housing 610 may include two rollers. The surface of the housing 610 adjacent 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 to move it in the forward and backward directions, wherein the forward direction is the direction in which the floor brush assembly 600 moves away from the user, and correspondingly, the backward direction is the direction in which the floor brush assembly 600 moves towards the user.

[0131] The housing 610 defines a suction chamber for the floor brush assembly, which is located in the front half of the floor brush assembly 600, so as to accommodate the agitator 620, which 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 this disclosure, the suction nozzle 630 is disposed adjacent to and behind the agitator 620. In this disclosure, the suction nozzle 630 is connected to a recovery pipeline and forms the starting point of the recovery path. That is, the suction nozzle 630 of this disclosure can communicate with the recovery storage unit 400 of the surface cleaning equipment.

[0133] The agitator 620 is configured to agitate the surface to be cleaned; that is, when the surface cleaning equipment is performing a cleaning operation or a self-cleaning operation, the agitator 620 can be driven by a motor to rotate, thereby enabling the agitator 620 to make frictional contact with the surface to be cleaned. In other words, the agitator 620 can cooperate with the cleaning medium to scrub the surface, thus achieving cleaning. During the frictional contact between the agitator 620 and the surface to be cleaned, cleaning liquid can be supplied to the agitator 620 or the surface near the agitator 620, thereby achieving wet cleaning of the surface.

[0134] In other words, the surface cleaning device disclosed herein may include a liquid dispenser capable of providing cleaning liquid to the agitator 620 or the surface to be cleaned in the vicinity of the agitator 620. In one specific embodiment, the liquid dispenser may include a supply pump capable of drawing cleaning liquid from the cleaning liquid storage unit 300, pressurizing the cleaning liquid, and supplying it to the outlet component, thereby supplying the pressurized cleaning liquid to the agitator 620 or the surface to be cleaned in the vicinity of the agitator 620.

[0135] In this disclosure, the liquid outlet component can be formed in the form of a nozzle, or it can be formed in the form of a water spray hole on the housing 610. This disclosure will not elaborate on these aspects.

[0136] A foam generator is used to produce foam. In this disclosure, the foam generator is capable of generating foam by mixing cleaning liquid stored in a cleaning liquid storage section 300 with cleaning agent stored in a container storing cleaning agent. In a preferred embodiment, the foam generator can be connected to a liquid dispenser, thereby supplying cleaning liquid to the foam generator through the liquid dispenser.

[0137] The foam generator disclosed herein can be housed within the housing 610. In another embodiment, the foam generator can also be housed within the frame portion 200 and connected to the nozzle 640 via a foam delivery conduit.

[0138] The nozzle 640 delivers the foam generated by the foam generator outward; wherein the nozzle 640 is rotatable between a first operable position and a second operable position, the first operable position being that the nozzle 640 faces the plane containing the bottom surface of the floor brush assembly 600 and is substantially perpendicular to it, and the second operable position being that the nozzle 640 faces the plane containing the bottom surface of the floor brush assembly 600 and forms a first angle α with it, the first angle being less than 90°.

[0139] In one case, such as Figure 4 and Figure 5 As shown, when the surface cleaning device is cleaning a surface to be cleaned, the surface to be cleaned can be a plane, and 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 oriented towards the surface to be cleaned, that is, the nozzle 640 needs to be set towards and substantially perpendicular to the plane containing the bottom surface of the floor brush assembly 600. In other words, the first operable position is the position of the nozzle 640 when the surface cleaning device is cleaning the surface to be cleaned.

[0140] Figure 6 This is a schematic diagram of a ground brush assembly docked at a base station according to one embodiment of the present disclosure.

[0141] In another case, such as Figure 6 As shown, when the surface cleaning device is docked at the base station 900 for self-cleaning, i.e., when the agitator 620 is self-cleaning, the nozzle 640 needs to provide foam to the agitator 620 to achieve a more thorough cleaning. In other words, the second operable position is the position of the nozzle 640 when maintenance is being performed on the base station 900. At this time, the nozzle 640 faces the plane containing the bottom surface of the floor brush assembly 600 and forms a first angle with it, the first angle being less than 90°. Thus, the nozzle 640 is set to face the agitator 620.

[0142] In other words, when the nozzle 640 is in the second operable position, the nozzle 640 is positioned close to the axis of the agitator 620 in the direction from top to bottom. Thus, when the value of the first angle is 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 agitator 620 is also located in the cleaning tank 923, and the agitator 620 can be driven to rotate. Accordingly, the foam in the cleaning tank 923 can fill the entire agitator 620, thereby cleaning the agitator 620 with the cleaning agent in the foam.

[0143] On the other hand, when the value of the first angle is small, the nozzle 640 is set to face the agitator 620, so that the foam provided by the nozzle 640 can be directly provided onto the agitator 620. Furthermore, since the nozzle 640 can provide foam continuously, the foam can cover the entire agitator 620 as the agitator 620 rotates, thereby cleaning the agitator 620 with the detergent in the foam.

[0144] In a preferred embodiment, the first angle is 10-85°. Accordingly, within this first angle range, the nozzle 640 can only provide foam to the cleaning tank 923 or the agitator 620, and not to other components, thereby improving the foam utilization efficiency. That is, when providing the same amount of foam (e.g., the foam generator is controlled and operates at a preset power for a preset time), the cleaning effect of the agitator 620 is improved.

[0145] Figure 7 This is a partial structural schematic diagram of a floor brush assembly according to one embodiment of the present disclosure. Figure 8 yes Figure 7 Enlarged schematic diagram of part B. Figure 9 This is a schematic diagram of the structure of the rotating bracket and nozzle according to one embodiment of the present disclosure. Figure 10 This is a structural schematic diagram of the rotating bracket and nozzle at another angle according to one embodiment of the present disclosure. Figure 11 This is a schematic diagram of the structure of a rotating bracket according to one embodiment of the present disclosure. Figure 12 This is a schematic diagram of the nozzle structure according to one embodiment of the present disclosure.

[0146] The rotation of the nozzle 640 between the first operable position and the second operable position is achieved by the rotating bracket 650; that is, the nozzle 640 of this disclosure can be mounted on the rotating bracket 650, so that when the rotating bracket 650 rotates, the cut of the nozzle 640 can have different orientations, and correspondingly, the nozzle 640 can be in the first operable position or the second operable position.

[0147] In a specific embodiment, such as Figure 12 As shown, the nozzle 640 of this disclosure can supply foam (cleaning foam) generated by a foam generator to the surface to be cleaned, or can directly or indirectly supply foam generated by a foam generator to agitator 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 supplied to nozzle 640, and these high-pressure foams are ejected at high speed from nozzle 640, thereby giving the foam a large coverage area.

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

[0149] In this disclosure, the first body 641 is formed as a hemispherical thin-walled part, thereby forming a hemispherical buffer cavity inside the first body 641. 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.

[0150] At least a portion of the second body 642 is formed in a cylindrical shape; for example, the end of the second body 642 connected to the first body 641 is formed in a generally cylindrical shape. In this disclosure, preferably, the outer 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.

[0151] The second body 642 includes a conveying channel for conveying foam and is connected to a hemispherical buffer cavity. The conveying channel is cylindrical in shape and its inner diameter is the same as the diameter of the inner surface of the first body 641, so that the foam has the least possible resistance during the conveying process.

[0152] The nozzle 640 also includes a cut 643 through which foam is supplied to the surface to be cleaned; in a specific embodiment, the cut 643 is configured to extend laterally through the first body 641 and communicate with the hemispherical buffer cavity, so that after the foam leaves the cut 643, it forms a fan-shaped radiating surface.

[0153] In other words, when processing the cut 643 of the first body 641, a groove of a certain width and depth can be cut from the apex of the first body 641 toward the center of the sphere. When mounting the nozzle 640 onto the rotating bracket 650, the cut 643 can be kept in a transverse direction or approximately a transverse direction. This transverse direction is the axial direction of the stirring element 620.

[0154] In a more preferred embodiment, at least a portion of the cut 643 extends into the second body 642, that is, at least a portion of the second body 642 is formed with a groove that is part of the cut 643.

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

[0156] In a preferred embodiment, when the nozzle 640 is in the first operable position, the cut 643 of the nozzle 640 has a first distance from the surface to be cleaned; when the nozzle 640 is in the second operable position, the cut 643 of the nozzle 640 has a second distance from the inner wall of the cleaning tank 923, or the cut 643 of the nozzle 640 has a third distance from the outer surface of the agitator 620; in this disclosure, when the first distance is greater than the second distance, the second distance is greater than the third distance.

[0157] Therefore, when pressurized foam is supplied 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 supply 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 the foam can be formed into a linear foam after being sprayed onto the surface to be cleaned. The length of the linear foam can be approximately the same as the axial dimension of the agitator 620 and is located in front of the agitator 620. Thus, the linear foam can pre-wet the surface to be cleaned, and as the floor brush assembly 600 moves forward, it is dispersed by the rotating agitator 620, thereby cleaning the surface to be cleaned through the foam.

[0159] When the nozzle 640 is in the second operable position, the angle 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 the nozzle 640 can be used to determine whether it provides foam to the inner wall surface of the cleaning tank 923 or to the outer surface of the agitator 620 based on the angle value of the first angle; moreover, the value of the second distance or the third distance can also be obtained based on the angle value of the first angle.

[0160] Accordingly, the foam pressure can be adjusted based on the value of the second or 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 agitator 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. This allows the foam sprayed by the nozzle 640 to cover the entire agitator 620 in the lateral direction, thereby improving the cleaning effect of the agitator 620.

[0161] The other end of the second body 642 of the nozzle 640 can be connected to and fixed to the rotating bracket 650, thereby allowing the nozzle 640 to swing through the rotating bracket 650, thus the position of the nozzle 640 of this disclosure can be conveniently controlled.

[0162] like Figure 7 and Figure 8 As shown, the housing 610 of this disclosure includes a front end portion 611, which includes a recessed portion. At least a portion of the rotating bracket is located within the recessed portion, thereby allowing the projection of the nozzle 640 onto the surface to be cleaned to be positioned in front of the projection of the agitator 620 onto the surface to be cleaned. Accordingly, when the nozzle 640 is in the first operable position, the nozzle 640 will not directly supply foam to the agitator 620.

[0163] In a specific embodiment, such as Figure 9 and Figure 10 As shown, the rotating support 650 may include a base 651 and a shaft component 652. The base 651 forms a foam channel, wherein both ends of the foam channel are connected to a foam generator and a nozzle 640, respectively; specifically, the foam channel can be connected to the delivery channel of the nozzle 640. The base 651 is rotatably mounted on the housing 610 via the shaft component 652; in a specific embodiment, the base 651 and the shaft component 652 are separately mounted and can be assembled together.

[0164] In this disclosure, through holes can be formed on the two side walls of the groove in the transverse direction. One end of the shaft component 652 is rotatably disposed in the through hole, and correspondingly, the other end of the shaft component 652 can be fixed to the base 651. In a preferred embodiment, there are two shaft components 652, which are located on opposite sides of the base 651 in the transverse direction. Moreover, these two shaft components 652 have the same axis of rotation, which is parallel to the transverse direction.

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

[0166] In a preferred embodiment, the substrate 651 includes a first surface 651A and a second surface 651B opposite to the first surface 651A; when the nozzle 640 is in a 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, 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 terms of height, the second surface 651B is located above the first surface 651A, so that the nozzle 640 can be fixed at the first surface 651A; that is, the nozzle 640 of this disclosure is located below the rotating bracket 650.

[0168] The recessed portion of the housing 610 includes a limiting surface. In a preferred embodiment, since the recessed portion of the housing 610 may include a top wall and two side walls, the top wall is formed accordingly as the limiting surface. When the rotating bracket 650 rotates under the restoring force of the return spring, causing the nozzle 640 to rotate from the second operable position to the first operable position, the limiting surface can at least partially contact the second surface 651B and limit further rotation of the rotating bracket 650, thereby limiting the nozzle 640 to the first operable position.

[0169] The base 651 includes two support portions 651C, which are located at opposite ends of the base 651 in the lateral direction and extend from the second surface 651B of the base 651 in a direction perpendicular to the lateral direction (i.e., upward). This allows the second surface 651B of the base 651 to maintain a predetermined distance from the axis of rotation of the shaft component 652. Accordingly, the rotating bracket 650 formed by the above structure can be more easily installed on the housing 610.

[0170] In this 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, the limiting surface of the housing 610 of this 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 this disclosure, the substrate 651 includes a force-bearing surface 651D, which, when pressure is applied to the force-bearing surface 651D, causes the rotating support 650 to rotate and causes the nozzle 640 to rotate toward a direction approaching a second operable position.

[0172] In a preferred embodiment, the force-bearing surface 651D can be formed as at least a portion of the front surface of the substrate 651; more preferably, a protrusion 651E is formed on the substrate 651, the protrusion 651E is provided to protrude forward, and the front surface of the protrusion 651E is formed as the force-bearing surface 651D. Thus, the rotating bracket 650 of this disclosure can be easily subjected to force by the force-applying surface of the actuator 930 of the base station 900, and during the process of applying force to the rotating bracket 650, the nozzle 640 will not be touched, so that the nozzle 640 will not be damaged.

[0173] In this disclosure, a return spring 653 is provided on the shaft component 652. The return spring 653 is used to return the rotating 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 651 includes a stop portion 651F, which is formed as a protrusion in the lateral 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. The torsion spring is in a pre-compressed state, thereby enabling the rotating bracket 650 to be returned to its original position, that is, the nozzle 640 is returned to the first operable position from the second 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-bearing surface of the rotating bracket 650, the rotating bracket 650 and the nozzle 640 will return to their initial state, which is the state in which the nozzle 640 is in the first operable position.

[0175] Figure 13 This is a schematic diagram of a ground brush assembly docked at a base station 900 according to one embodiment of the present disclosure. Figure 14 This is a schematic diagram of the structure of a base station 900 according to one embodiment of the present disclosure. Figure 15 yes Figure 14 Enlarged schematic diagram of part C. Figure 16 This is a schematic diagram of the cooperation relationship between the base station 900 and the rotating bracket according to one embodiment of the present disclosure. Figure 17 yes Figure 16 The intention is to enlarge part D.

[0176] like Figures 13 to 17 As shown, the base station 900 of this disclosure is configured to facilitate the docking of surface cleaning equipment. Specifically, the base station 900 of this disclosure includes components such as a base component 910, a tray 920, and an actuator 930.

[0177] The base component 910 is designed to be placed on the ground or in other locations. Furthermore, the interior of the base component 910 has a receiving space, within which components such as a fan can be installed, thereby generating a dry airflow.

[0178] Specifically, the seat component 910 has an upward opening, that is, the upper end of the receiving space is open, and the tray 920 is disposed on the seat component 910 and is capable of closing the opening of the seat component 910.

[0179] An air inlet is formed on the base component 910, which serves as the starting point for the dry airflow. At the same time, a gas passage is formed between the base component 910 and the tray 920, and the fan can draw in the air entering through the air inlet and discharge it into the gas passage. More preferably, the tray 920 includes an air outlet 924, which is connected to the gas passage, so that the air outlet 924 can form the end point of the gas flow path. Accordingly, the air drawn in by the fan can be discharged to the outside of the base station 900 through the air outlet 924.

[0180] In one specific embodiment, a heating device may be provided in the gas passage so that hot air can be discharged through the air outlet 924, thereby drying the agitator 620 of the surface cleaning device.

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

[0182] The upper surface of the tray 920 may have a positioning groove 921, which 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 rollers of the surface cleaning device into the positioning groove 921.

[0183] Furthermore, to prevent the roller from moving out of the positioning groove, a limiting part 922 can be provided near the positioning groove 921. The limiting part 922 can prevent the roller from moving, 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 limiting part 922 near the positioning groove is also formed with a second arc-shaped groove. When the surface cleaning equipment stops at the base station 900, both the first arc-shaped groove and the second arc-shaped groove are in contact with the rolling wheel.

[0185] Furthermore, a cleaning groove 923 is formed on the upper surface of the tray 920. The shape of the cleaning groove 923 can be adapted to the shape of components such as the agitator 620 of the surface cleaning equipment. When the surface cleaning equipment is parked at the base station, the agitator 620 of the surface cleaning equipment can be placed in the cleaning groove 923.

[0186] An actuator 930 is disposed on a tray 920 and extends from an air outlet 924 of the tray 920 along the air outlet direction of the air outlet 924. In this disclosure, the actuator 930 is used to drive the rotating bracket 650 to rotate, causing the nozzle 640 to rotate from a first operable position to a second operable position. The extension of the actuator 930 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] In other words, when the surface cleaning equipment is not docked at the base station, the nozzle 640 is in the first operable position; when the surface cleaning equipment is placed at the base station, the actuator 930 will contact the rotating bracket 650. When the surface cleaning equipment is further lowered and docked on the base station 900, under the action of the gravity of the surface cleaning equipment, and since the actuator 930 is immovable, the actuator 930 will push the rotating bracket 650 to rotate.

[0188] In a preferred embodiment, the air outlet 924 of the tray 920 is positioned higher than the cleaning tank 923 in the height direction. Thus, the cleaning tank 923 can store cleaning liquid, and the agitator 620 of the surface cleaning device can be self-cleaned through the cleaning liquid. At this time, the cleaning liquid will not enter the air outlet 924.

[0189] In terms of height, 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, which is positioned higher than the fixed end. That is, the free end is further away from the cleaning groove 923 of the tray 920 than the fixed end.

[0190] However, when the base station 900 is placed on a roughly horizontal surface to be cleaned, the actuator 930 extends toward the cleaning tank 923. In other words, in one case, a portion of the actuator 930 can extend directly above the cleaning tank 923, thereby facilitating the actuator 930 to push the rotating bracket 930 to move.

[0191] like Figure 15 As shown, the actuator 930 of this disclosure includes at least one actuating piece; wherein, when there are multiple actuating pieces, the multiple actuating pieces are arranged in parallel. In a specific embodiment, the number of actuating pieces can be five; correspondingly, by using multiple parallel actuating pieces, on the one hand, the forming of the actuator 930 can be facilitated, and on the other hand, the actuator 930 can have a lighter weight while meeting the required strength.

[0192] Positionally, the tray 920 of this disclosure includes a lateral direction, which may be the same as the lateral direction of the floor brush assembly. Accordingly, along the lateral direction, multiple air outlets 924 are provided, thereby enabling airflow to be provided to the entire area of ​​the agitator 620 of the surface cleaning device 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, multiple air outlets 924 are provided on both sides of the actuator 930 in the lateral direction. That is to say, the actuator 930 of this disclosure can occupy only part of the position of the air outlets 924, for example, only occupying the position of one air outlet 924.

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

[0195] In this disclosure, the actuator 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 on the same plane. Therefore, when the actuator 930 and the tray 920 of this disclosure are integrally formed, the first outer surface 931 and the end face 925 can be manufactured simultaneously, thereby improving processing efficiency.

[0196] In addition, the actuator also includes a guide surface 932, which is inclined when the tray 920 is set approximately horizontally. The guide surface 932 approaches the cleaning groove 923 of the tray 920 in a top-to-bottom direction. Thus, when the surface cleaning equipment is placed on the base station 900, the guide 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 guide surface 932 includes a first end (upper end) and a second end (lower end). Correspondingly, the first end of the guide surface 932 is connected to the first outer surface 931. Preferably, the guide surface 932 and the first outer surface 931 are formed in a smooth connection.

[0198] The actuator also includes a force-applying surface 933, the upper end of which is connected to the second end (i.e. the lower end) of the guide surface 932; when the tray 920 is set approximately horizontally, the force-applying surface 933 is set at an angle, wherein, along the top-to-bottom direction, the force-applying surface 933 approaches the cleaning groove 923 of the tray 920, thereby driving the rotating bracket 650 to rotate via the force-applying surface 933.

[0199] In a preferred embodiment, when the surface cleaning device is parked at the base station, the force-applying surface 933 can be closely attached to and substantially parallel to the force-bearing surface 651D of the rotating bracket, thereby enabling the rotating bracket 650 to be stably held by the actuator 930.

[0200] More preferably, the guide surface 932 has a first angle with the horizontal plane, and the force-applying surface 933 has a second angle with the horizontal plane. Both the first angle and the second angle are acute angles, and the first angle is smaller than the second angle. That is to say, the force-applying surface 933 of this disclosure has a greater degree of inclination than the guide surface 932.

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

[0202] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0203] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0204] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A floor brush assembly, characterized in that, include: The housing includes a bottom surface; A stirring element, located within the suction chamber formed by the housing, is used to work with the cleaning medium to scrub the surface to be cleaned. A suction nozzle is provided, wherein the agitator is adjacent to the suction nozzle, the suction nozzle is in fluid communication with the recovery storage section, and is used to remove contaminated liquid from the agitator and the surface to be cleaned; A foam generator for producing foam; as well as The nozzle delivers 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 to it, 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 with it, the first angle being less than 90°.

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

3. The floor brush assembly according to claim 2, characterized in that, The nozzle is located behind the agitator; when the ground 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 agitator.

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

5. The floor brush assembly according to claim 4, characterized in that, The rotating bracket includes: A matrix having foam channels formed therein, wherein both ends of the foam channels are respectively connected to a foam generator and a nozzle; and A shaft component, wherein the base is rotatably mounted on the housing via the shaft component.

6. The floor brush assembly according to claim 5, characterized in that, The substrate includes a first surface and a second surface opposite to the first surface, wherein the first surface is used to mount a nozzle; the recess of the housing includes a limiting surface, and the second surface is used to cooperate with the limiting surface to restrict the nozzle to a first operable position.

7. The floor brush assembly according to any one of claims 1-6, 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; Optionally, the substrate includes a force-bearing surface, which, when pressure is applied to the force-bearing surface, causes the rotating bracket to rotate and causes the nozzle mounted on the rotating bracket to rotate toward a direction approaching the second operable position. Optionally, the force-bearing surface is located at the front end of the substrate; Optionally, a return spring is provided on the shaft component, the return spring being used to drive the rotating bracket to rotate so that the nozzle is reset from the second operable position to the first operable position; Optionally, the first operable position is the position of the nozzle when cleaning the surface to be cleaned; Optionally, the second operable position is the position of the nozzle when maintenance is performed on the base station; Optionally, the first angle is 10-85°.

8. A surface cleaning device, characterized in that, include: The casing, including the bottom surface; A stirring element, located within the suction chamber formed by the housing, is used to work with the cleaning medium to scrub the surface to be cleaned. A suction nozzle is provided, wherein the agitator is adjacent to the suction nozzle, the suction nozzle is in fluid communication with the recovery storage section, and is used to remove contaminated liquid from the agitator and the surface to be cleaned; A liquid dispenser for supplying cleaning liquid to a stirring element or a surface to be cleaned in the vicinity of the stirring element; A foam generator for producing foam; as well as The nozzle delivers 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 to it, 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 with it, the first angle being less than 90°.

9. A surface cleaning system comprising a floor brush assembly as described in any one of claims 1-7, or comprising a surface cleaning device as described in claim 8.

10. The surface cleaning system according to claim 9, characterized in that, It also includes a base station, which includes: Seat components; A tray, the tray being disposed on the seat component; wherein the tray includes an air outlet; and An actuator is disposed on the tray and extends from the air outlet of the tray along the air outlet direction; When the surface cleaning equipment is parked at the base station, the actuator is used to drive the rotating bracket of the surface cleaning equipment to rotate, so that the nozzle moves from the first operable position to the second operable position. Optionally, the tray further includes a cleaning trough, and the actuator extends toward the cleaning trough in a direction that is close to the horizontal plane. Optionally, the actuator includes at least one actuating piece; wherein, when there are multiple actuating pieces, the multiple actuating pieces are arranged in parallel. Optionally, the actuating plate includes a first outer surface, and the tray includes an end face, wherein the first outer surface and the end face are in the same plane; Optionally, the actuating plate further includes a guide surface that is inclined when the tray is set generally horizontally, wherein the guide surface is close to the cleaning groove of the tray in a top-to-bottom direction; Optionally, the actuating plate further includes a force-applying surface connected to the guide surface; when the tray is set generally horizontally, the force-applying surface is set at an angle, wherein, along the top-to-bottom direction, the force-applying surface is close to the cleaning groove of the tray; Optionally, the guide surface has a first angle with the horizontal plane, and the force-applying surface has a second angle with the horizontal plane, both the first angle and the second angle being acute, and the first angle being smaller than the second angle.

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