Base station and surface cleaning system

Abstract

The invention provides a base station. The base station comprises a shell assembly, an air duct assembly and an airflow generator. The shell assembly comprises an air inlet, a first air outlet and a second air outlet. The air duct assembly is located in the shell assembly. The airflow generator is used for enabling air in the air duct assembly to flow; the air duct assembly comprises a first air duct piece, a second air duct piece, a first air duct and a second air duct. The first air duct piece and the second air duct piece are connected with each other and form an inlet and an outlet; gas entering the shell assembly through the air inlet can enter the air duct assembly through the inlet; the first air duct is located between the inlet and the outlet of the air duct assembly and is in fluid communication with the first air outlet; the second air duct is in fluid communication with the second air outlet so as to receive gas entering through the inlet of the air duct assembly and provide the gas to the second air outlet. The invention further provides a surface cleaning system.

Description

Technical Field

[0001] This disclosure relates to a base station and a surface cleaning system, belonging to the technical field of household cleaning equipment. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] Wet surface cleaning equipment refers to cleaning equipment suitable for cleaning various hard surfaces in home or office environments.

[0004] Existing floor cleaners clean floors with high-flow-rate cleaning fluid in a way that completely wets the floor to be cleaned. By wetting the hard floor surface, the cleaning head transfers dust from the floor into the cleaning fluid, which is then removed from the hard floor surface and stored in a recycling storage section as contaminated cleaning fluid.

[0005] Wet surface cleaning equipment typically includes: a cleaning solution storage unit for holding the cleaning solution; a recovery storage unit for recovering contaminants recovered from the cleaned floor; a motor-driven vacuum source to create a vacuum flow path from the cleaned floor to the recovery storage unit; a floor brush assembly that can move and clean the surface to be cleaned; a rechargeable battery to power the components; and a base station for charging the wet surface cleaning equipment and for post-cleaning maintenance.

[0006] However, when using wet surface cleaning equipment, because its cleaning section is located at the front of the entire equipment, in some situations, such as cleaning corners, no matter which direction the equipment approaches the wall from, there will always be some areas that cannot be cleaned, which affects the user experience.

[0007] Therefore, it is necessary to install an agitator and a side cleaning module in the surface cleaning equipment, and correspondingly, a base station that works in conjunction with the surface cleaning equipment needs to be designed. Summary of the Invention

[0008] To address one of the aforementioned technical problems, this disclosure provides a base station and a surface cleaning system.

[0009] According to one aspect of this disclosure, a base station is provided, comprising:

[0010] A housing assembly, the housing assembly including an air inlet, a first air outlet, and a second air outlet;

[0011] A duct assembly, located inside the housing assembly, enables gas flow from an air inlet to a first air outlet; and enables gas flow from an air inlet to a second air outlet; and

[0012] An airflow generator for causing gas to flow within a duct assembly;

[0013] The air duct assembly includes:

[0014] A first air duct component and a second air duct component are connected to each other to form an inlet and an outlet; gas entering the housing assembly through the air inlet can enter the air duct component through the inlet.

[0015] A first air duct, located between the inlet and outlet of the air duct assembly and in fluid communication with a first air outlet; and

[0016] The second air duct is in fluid communication with the second air outlet to receive gas entering through the inlet of the air duct assembly and to supply the gas to the second air outlet.

[0017] According to at least one embodiment of the base station of the present disclosure, the first air duct and the second air duct share the inlet of the air duct assembly.

[0018] According to at least one embodiment of the base station of this disclosure, the second air duct is diverted from the first air duct.

[0019] According to at least one embodiment of the base station of the present disclosure, the second air duct includes an air inlet, which is formed on the first air duct member and / or the second air duct member.

[0020] According to at least one embodiment of the base station of the present disclosure, the first air duct includes an upstream air duct and a downstream air duct that are connected together.

[0021] According to at least one embodiment of the base station of this disclosure, the air duct assembly includes:

[0022] A first airflow guiding structure is disposed within the first air duct and is used to guide the airflow within the first air duct when the airflow generator is activated.

[0023] According to at least one embodiment of the base station of the present disclosure, the first airflow guiding structure includes at least one airflow guide plate located in the upstream airflow duct, the airflow guide plate being arranged to extend along the airflow direction.

[0024] According to at least one embodiment of the base station of the present disclosure, the first airflow guiding structure includes a plurality of airflow guiding plates located in the downstream air duct, the airflow guiding plates being arranged to extend along the airflow direction.

[0025] According to at least one embodiment of the base station of this disclosure, the air duct assembly further includes:

[0026] A second flow guiding structure is disposed within the first air duct and is used to guide at least a portion of the airflow in the first air duct to the second air duct when the airflow generator is activated.

[0027] According to at least one embodiment of the base station of the present disclosure, the second flow guiding structure includes at least one flow guiding component located in the downstream air duct, and the flow guiding component is formed in an arc shape.

[0028] According to at least one embodiment of the base station of the present disclosure, a first heating device is provided between the upstream air duct and the downstream air duct.

[0029] According to at least one embodiment of the base station of the present disclosure, one end of the first heating device is close to the air inlet of the second air duct.

[0030] A base station according to at least one embodiment of the present disclosure further includes:

[0031] A steering mechanism, connected to the exhaust port of the second air duct, is used to change the flow direction of the gas discharged from the second air duct.

[0032] According to another aspect of this disclosure, a surface cleaning system is provided, which includes the aforementioned base station.

[0033] The surface cleaning system according to at least one embodiment of the present disclosure further includes a surface cleaning device, the surface cleaning device including a floor brush assembly, the floor brush assembly including an agitator and a cleaning head assembly; wherein, when the surface cleaning device is docked at a base station, the first air outlet is used to process the agitator, and the second air outlet is used to process the cleaning head assembly. Attached Figure Description

[0034] 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.

[0035] Figure 1 A schematic diagram of a surface cleaning system according to one aspect of this disclosure is shown.

[0036] Figure 2 This is a schematic diagram of the structure of a surface cleaning device according to one embodiment of the present disclosure.

[0037] Figure 3 This is a schematic diagram of the structure of a floor brush assembly according to one embodiment of the present disclosure.

[0038] Figure 4 This is a structural schematic diagram of a floor brush assembly according to one embodiment of the present disclosure from another angle.

[0039] Figure 5 This is a partial structural schematic diagram of a floor brush assembly according to one embodiment of the present disclosure.

[0040] Figure 6 This is a schematic diagram of the internal structure of a floor brush assembly according to one embodiment of the present disclosure.

[0041] Figure 7 This is a schematic diagram of the structure of a first motor and actuation assembly according to one embodiment of the present disclosure.

[0042] Figure 8 This is an exploded structural diagram of a first motor and actuation assembly according to one embodiment of the present disclosure.

[0043] Figure 9 This is an exploded structural diagram of an actuation component according to one embodiment of the present disclosure.

[0044] Figure 10 This is a schematic diagram of the structure of an actuation component according to one embodiment of the present disclosure.

[0045] Figure 11 This is a schematic diagram of the structure of a damping element according to one embodiment of the present disclosure.

[0046] Figure 12 This is a schematic diagram of the structure of the avoidance section according to one embodiment of the present disclosure.

[0047] Figure 13 This is a schematic diagram of the structure of the avoidance section according to another embodiment of the present disclosure.

[0048] Figure 14 This is a schematic diagram of the structure of a cleaning head assembly according to one embodiment of the present disclosure.

[0049] Figure 15 This is a schematic diagram of the structure of a liquid supply assembly according to one embodiment of the present disclosure.

[0050] Figure 16 This is a schematic diagram of a liquid supply assembly according to one embodiment of the present disclosure.

[0051] Figure 17 This is a structural schematic diagram of a valve stem and valve cover according to one embodiment of the present disclosure.

[0052] Figure 18 This is a cross-sectional structural schematic diagram of a valve component according to one embodiment of the present disclosure.

[0053] Figure 19 This is a schematic diagram of the structure of a first sensor assembly according to one embodiment of the present disclosure.

[0054] Figure 20 yes Figure 19 An enlarged schematic diagram of part A.

[0055] Figure 21 This is a schematic diagram of the scraping assembly and suction head according to one embodiment of the present disclosure.

[0056] Figure 22 This is a structural schematic diagram of the scraping assembly and suction head according to one embodiment of the present disclosure from another angle.

[0057] Figure 23 This is a schematic diagram of the structure of a scraping assembly according to one embodiment of the present disclosure.

[0058] Figure 24 This is a structural schematic diagram of a scraping assembly according to one embodiment of the present disclosure from another angle.

[0059] Figure 25 This is a schematic diagram of the suction head according to one embodiment of the present disclosure.

[0060] Figure 26 This is a structural schematic diagram of a floor brush assembly according to one embodiment of the present disclosure from one angle.

[0061] Figure 27 yes Figure 26 An enlarged structural diagram.

[0062] Figure 28 This is a structural schematic diagram of a floor brush assembly according to one embodiment of the present disclosure from another angle.

[0063] Figure 29 yes Figure 28 Enlarged schematic diagram of part C.

[0064] Figure 30 This is a structural schematic diagram of a floor brush assembly according to one embodiment of the present disclosure from one angle.

[0065] Figure 31 This is a structural schematic diagram of a floor brush assembly according to one embodiment of the present disclosure from another angle.

[0066] Figure 32 This is a schematic diagram of the structure of a base station according to one embodiment of the present disclosure.

[0067] Figure 33 This is a structural schematic diagram of a base station according to one embodiment of the present disclosure from another angle.

[0068] Figures 34 to 36 This is a structural schematic diagram of a base station air duct assembly at different angles according to one embodiment of the present disclosure.

[0069] Figure 37 This is a structural schematic diagram of a first air duct component according to an embodiment of the present disclosure.

[0070] Figure 38 This is a structural schematic diagram of a second air duct component according to one embodiment of the present disclosure. Detailed Implementation

[0071] 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.

[0072] like Figure 1 As shown, this disclosure provides a surface cleaning system, which includes a surface cleaning device and a base station 900.

[0073] The surface cleaning device is configured to clean a surface to be cleaned (e.g., a floor surface). Preferably, the surface cleaning device is capable of wet cleaning of the surface, i.e., it is a wet surface cleaning device, and the liquid used to clean the surface is recycled back to the surface cleaning device. Unless otherwise specified in this disclosure, the surface to be cleaned is arranged substantially horizontally, i.e., it is formed as a horizontal surface.

[0074] 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.

[0075] Although the surface cleaning apparatus disclosed herein is shown in the form of a floor scrubber, those skilled in the art will appreciate that the term "surface cleaning apparatus" can be used herein to describe various types of household cleaning apparatus, including autonomous processing apparatus configured to provide some semi-autonomous or autonomous capabilities. Examples of household cleaning apparatus include: floor scrubbers, vacuum cleaners with mopping functions, robotic vacuum cleaners with scrubbing functions, window cleaning robots, etc.

[0076] See again Figure 1 In this disclosure, the surface cleaning system is designed to support surface cleaning equipment for cleaning and maintenance. In some examples, the surface cleaning equipment may be configured to perform a semi-autonomous or autonomous dirt particle collection process. For example, the surface cleaning equipment may include a wet floor cleaning device. The surface cleaning equipment may include one or more controllers connected to or integrated with sensors disposed on or inside the housing of the surface cleaning equipment. The controllers may be connected to or integrated with a connection component and configured to collect data from the sensors. In some examples, the surface cleaning equipment may identify the degree of dirt on the floor during a single cleaning cycle using sensors. This identification may be based on sensor information and the usage time of the agitator 630.

[0077] The controller can also be configured to transmit output signals to controlled components of the surface cleaning equipment and execute cleaning operation cycles. Examples of controlled components include an electric suction source, a motor driving the agitator 630, etc.

[0078] The base station 900 can be configured to perform a self-cleaning cycle and a hot drying cycle, thereby initiating the corresponding cleaning and maintenance operations when the surface cleaning equipment is housed and supported on the base station 900.

[0079] In some implementations, various mechanisms and algorithms can be employed to determine the maintenance mode of the agitator 630 of the surface cleaning equipment to adapt to the current operating conditions. These operating conditions can be user-defined or identified by the surface cleaning equipment using environmentally relevant occupancy data, such as records of the dirt level of the surface to be cleaned. Automated cleaning mode selection through these mechanisms and algorithms can reduce the power consumption of the surface cleaning equipment, thereby improving its operational efficiency.

[0080] like Figure 1 As shown, in some embodiments, the surface cleaning system may further include an access point 1100, a server 1200, a remote control device 1300, a database 1400, and a wireless communication link 1500. The server 1200 may include a data server, a cloud server, a server associated with an automation service provider, a proxy server, a mail server, a network server, an application server, a database server, a communication server, a home server, a mobile server, or any combination thereof.

[0081] For example, the surface cleaning device can upload data (such as notifications) to an application hosted on server 1200 to publish data related to the autonomous functions performed by the surface cleaning device. For example, a user can view the data published by the surface cleaning device through an application running on remote control device 1300 to see the functions performed by the surface cleaning device. Server 1200 can also transmit various information to the surface cleaning device, such as location information, motion control commands, and other information, instructions, or commands related to the autonomous operation of the surface cleaning device.

[0082] Database 1400 can store data, which may include operational information such as location information, control commands, consumable information (e.g., agitator 630 information, filter information), water level information, dirt information, and battery information, as well as other information, instructions, or commands related to the maintenance operations of the surface cleaning equipment (e.g., the duration of the self-cleaning cycle, the duration of the hot drying cycle, the charging power of the base station 900 during maintenance of the surface cleaning device, etc.). The surface cleaning equipment can retrieve the stored data from database 1400 through access point 1100.

[0083] In some cases, surface cleaning equipment can also communicate directly with another device (e.g., using point-to-point (P2P) or device-to-device (D2D) protocols), such as smartphones, Bluetooth devices, Wi-Fi devices, mobile stations, user stations, mobile clients, etc.

[0084] The wireless communication link 1500 shown in the surface cleaning system may include uplink (UL) transmission from the surface cleaning device to access point 1100 or server 1200, and / or downlink (DL) transmission from access point 1100 or server 1200 to the surface cleaning device. Downlink transmission may also be referred to as forward link transmission, and uplink transmission may also be referred to as reverse link transmission. The wireless communication link 1500 can transmit bidirectional and / or unidirectional communication. The wireless communication link 1500 may include one or more connections, including but not limited to Wi-Fi, Bluetooth, point-to-point, LAN, wireless local area network (WLAN), Ethernet, fiber optic, and / or other connection types associated with the wireless communication system.

[0085] In some examples, environment 2000 can be part of a structure, such as a residential or commercial building. For instance, environment 2000 can be a home, specifically a room, including one or more different floor materials and objects throughout the room. The surface cleaning device can be configured to perform cleaning functions within the scope of the home. For example, the surface cleaning device can perform a semi-autonomous (or autonomous) process of collecting surface dirt particles within the aforementioned geographical boundaries under the manual control of the user.

[0086] When a wet household surface cleaning device is in operation, the agitator 630, containing liquid, rotates at high speed and accumulates a large amount of dirt. To avoid secondary contamination, the structural design requires the agitator 630 to maintain real-time self-cleaning. Typically, a cover 620 shields and collects dirt and liquid particles ejected by centrifugal force during the agitator 630's high-speed rotation, and a scraper within the receiving chamber, interfering with the agitator's operation, scrapes off the dirt adhering to the surface of the agitator 630 in real-time and sucks it away through a suction nozzle 640. Due to structural design reasons, the agitator 630 cannot be detached from the cover and receiving chamber and installed independently. During operation, wet household surface cleaning devices may encounter hard-to-reach areas, such as the junction of floors and walls. To ensure cleaning efficiency, wet household surface cleaning equipment needs to continuously provide space for the agitator 630 to clean the edges. However, due to the aforementioned design reasons, the agitator 630 itself is difficult to achieve the expected edge cleaning effect. Often, when the casing of the surface cleaning equipment reaches the wall, the edge of the agitator 630 has not yet reached the target cleaning area, making it impossible to clean the target cleaning area.

[0087] like Figure 2As shown, the surface cleaning device of this disclosure is configured to perform wet cleaning of a surface to be cleaned, wherein the surface to be cleaned can be a floor surface, preferably a household floor surface. Furthermore, after the surface cleaning device performs wet cleaning of the floor surface, the dirt and liquid (sewage) remaining from cleaning the surface can be recycled back to the surface cleaning device.

[0088] like Figure 2 As shown, the surface cleaning equipment may include components such as a handle 100, a main body 200, a supply tank 300, a recycling tank 400, a connecting part 500, and a floor brush assembly 600.

[0089] The handle 100 is detachably provided on the main body 200. The user can operate the surface cleaning device by operating the handle 100, and the main body 200 can be in an upright state (non-working state) and an inclined state (working state).

[0090] More preferably, the handle 100 may be provided with a user interaction button, which the user can trigger to control the surface cleaning device, such as controlling the start and stop of the surface cleaning device, as well as the liquid supply speed and suction power of the electric suction source, thereby improving the user experience of the surface cleaning device.

[0091] In one example, the main body 200 is formed as the main body of a surface cleaning device; the main body 200 is pivotally connected to the floor brush assembly 600 via a connecting portion 500; furthermore, the main body 200 can also accommodate components such as a supply tank 300 and a recovery tank 400. In this disclosure, the supply tank 300 and the recovery tank 400 can be detachably mounted to a side of the main body 200, and the side on which they are mounted can be the opposite side of the main body 200. In another example, at least one of the supply tank 300 and the recovery tank 400 can also be detachably mounted to a portion of the floor brush assembly 600.

[0092] In one example, the thickness of the supply tank 300 and the recycling tank 400 is set to be less than their width. This ensures sufficient capacity and allows the height of the main body 200 to be less than a predetermined height, such as 120mm, when it is laid flat.

[0093] The supply container 300 has a flat shape and includes a cavity composed of multiple walls to contain cleaning liquid. The capacity of the supply container 300 can be set to 500 mL, etc. Additionally, the supply container 300 may include a handle, allowing the user to install or remove it.

[0094] The supply tank 300 is used to store cleaning liquid to be dispensed. Accordingly, the supply tank 300 can be connected to a liquid dispenser (not shown in the figure), so that the cleaning liquid in the supply tank 300 can be pressurized by the liquid dispenser and supplied to the floor brush assembly 600, or to the surface to be cleaned near the floor brush assembly 600, thereby enabling wet cleaning of the surface to be cleaned by the cleaning liquid.

[0095] In a preferred embodiment, the liquid dispenser may include a supply pump capable of drawing cleaning liquid from the supply tank 300, pressurizing the cleaning liquid, and supplying it to the outlet component, and then supplying the pressurized cleaning liquid to the agitator 630 of the floor brush assembly 600 or to the surface to be cleaned near the agitator 630.

[0096] In this disclosure, the cleaning liquid can be one or more of any suitable liquid, including but not limited to cleaning water, concentrated detergent, diluted detergent, or mixtures thereof. Furthermore, the cleaning liquid can be a room-temperature cleaning liquid or a high-temperature cleaning liquid.

[0097] The main body 200 has a receiving space, and the recycling tank 400 is detachably installed in the main body 200 and located in the receiving space, so that when there is a lot of liquid stored in the recycling tank 400, the user can remove the recycling tank 400, pour out the sewage inside and clean up the solid waste. At this time, part of the outer surface of the recycling tank 400 forms part of the outer surface of the surface cleaning device.

[0098] To recover the liquid after cleaning the surface, the recovery tank 400 can be connected to the floor brush assembly 600 via a recovery pipe 401. Accordingly, the mixture of dirt, wastewater, and gas (solid-liquid mixture) can be recovered to the recovery tank 400 via this recovery pipe 401. In one example, a solid-liquid separator can be installed inside the recovery tank 400 to separate the solid and liquid mixture recovered by the surface cleaning equipment after cleaning the surface. This allows the separated solids to be retained in the separator, while the separated liquid is stored inside the recovery tank 400.

[0099] In this disclosure, the surface cleaning equipment also includes an electric suction source (not shown in the figure), which may include a vacuum motor, thereby generating a vacuum (negative pressure). Simultaneously, the electric suction source can be connected to a recovery tank 400, thereby providing the negative pressure to the recovery tank 400, thus achieving forced flow of gas and wastewater within the recovery pipeline 401. In this disclosure, the gas discharged from the electric suction source can flow to the outside of the surface cleaning equipment through gaps on a portion of its outer surface.

[0100] In one example, the connection 500 may include a universal joint to enable the main body 200 to rotate in two directions relative to the floor brush assembly 600.

[0101] In another example, the connection 500 may include a multi-axis joint that can couple the body 200 to the floor brush assembly 600 to allow the body 200 to rotate relative to the floor brush assembly 600 in a first direction and a second direction.

[0102] The main body 200 can be pivoted to an upright position (also known as a storage position) via the connecting part 500. In this position, the angle between the main body 200 and the surface of the floor brush assembly 600 (or the ground) is 80° to 90°, preferably around 80°. In this position, the surface cleaning device is in a self-supporting posture (also known as an upright posture), meaning that the main body 200 can be supported by the floor brush assembly 600, and an upright posture can be achieved without the aid of other objects.

[0103] like Figure 3 and Figure 4 As shown, the floor brush assembly 600 disclosed herein may include components such as a base portion 610, a cover portion 620, an agitator 630, a suction nozzle 640, and a cleaning head assembly 650.

[0104] The base portion 610 and cover portion 620 of this disclosure can be integrally formed as the housing assembly of the floor brush assembly 600, and the housing assembly is pivotally connected to the main body portion 200 via the connecting portion 500. Furthermore, the housing assembly is configured to be suitable for movement on the floor surface to be cleaned. For example, two rollers may be provided on the base portion 610 of the housing assembly, and the housing assembly moves on the surface to be cleaned by the rolling of the rollers.

[0105] The housing assembly defines a receiving chamber, specifically located in the front half of the floor brush assembly 600 (with the direction of movement of the surface cleaning device when cleaning the surface to be cleaned as the front) to accommodate a first agitator 630, which is also located in the front half of the floor brush assembly 600. In one specific embodiment, the front surface of the base portion 610 and the lower surface of the cover portion 620 are both formed as at least a portion of the sidewalls of the receiving chamber; that is, the receiving chamber of this disclosure is jointly formed by the base portion 610 and the cover portion 620.

[0106] The agitator 630 is configured to agitate the surface to be cleaned. Specifically, the agitator 630 is detachably mounted on the base 610 and can be driven to rotate; that is, when the surface cleaning device is performing a cleaning operation or a self-cleaning operation, the agitator 630 can be driven by a motor to rotate, thereby enabling the agitator 630 to make frictional contact with the surface to be cleaned and achieving cleaning of the surface. During the frictional contact between the agitator 630 and the surface to be cleaned, cleaning liquid can be supplied to the agitator 630, thereby achieving wet cleaning of the surface to be cleaned.

[0107] In one example, the agitator 630 of the floor brush assembly 600 can be a roller-type cleaning component; those skilled in the art will understand that the floor brush assembly 600 can also be configured as a tracked cleaning device, etc., in which case the agitator 630 of the floor brush assembly 600 can be a tracked cleaning component, etc. In this disclosure, a roller-type cleaning component is used as an example for explanation.

[0108] In one embodiment, the motor may be housed within the housing assembly and drive the agitator 630 to rotate via a synchronous belt drive (i.e., the agitator 630 is operatively connected to the motor); in another embodiment, the motor may be housed within the agitator 630 and be capable of driving the agitator 630 to rotate; in this disclosure, the agitator 630 is capable of rotating along a first axis; more preferably, the first axis may be a horizontal straight line in the transverse direction, i.e., the direction perpendicular to the front-back direction; the front-back direction is the direction of movement of the surface cleaning device when cleaning the surface to be cleaned.

[0109] The cover portion 620 is disposed on the base portion 610 and configured to partially surround the stirrer 630. Furthermore, the cover portion 620 is capable of interfering with at least a portion of the outer surface of the stirrer 630, so that the cleaning liquid on the stirrer 630 is distributed more evenly.

[0110] like Figure 5 and Figure 6 As shown, a suction nozzle 640 is formed on the base portion 610. In this disclosure, the suction nozzle 640 is disposed adjacent to the stirrer 630 and located behind the stirrer 630. In this disclosure, the suction nozzle 640 is connected to the recovery pipeline 401 and forms the starting point of the recovery path.

[0111] like Figure 4 As shown, the cleaning head assembly 650 of this disclosure is driven to move between a raised position and a lowered position; the cleaning head assembly 650 is further away from the surface to be cleaned in the raised position than in the lowered position; and, in the lowered position, the working range of the cleaning head assembly 650 is outside the horizontal projection of the housing assembly; that is, the cleaning head assembly 650 of this disclosure is capable of cleaning the area of ​​the housing assembly outside the horizontal projection.

[0112] In other words, when using the surface cleaning device of this disclosure, for example when cleaning a horizontal surface to be cleaned, the cleaning head assembly 650 does not always contact the surface to be cleaned (e.g., a horizontal surface), but selectively contacts the surface. For example, when the surface cleaning device is cleaning a corner or other location on the surface, the cleaning head assembly 650 can be controlled to descend, placing it in a lowered position. At this position, the cleaning head assembly 650 can contact the surface to be cleaned and clean it. Then, when the surface cleaning device moves away from the corner or other location, the cleaning head assembly 650 can be controlled to rise, placing it in an elevated position. In this elevated position, the cleaning head assembly 650 is in a non-operating state; cleaning liquid can be withheld from the cleaning head assembly 650, and the cleaning head assembly 650 can be de-rotated.

[0113] In a preferred embodiment, the cleaning head assembly 650 of this disclosure is disposed near the right side wall of the floor brush assembly 600.

[0114] The floor brush assembly 600 of this disclosure may further include a first motor 660 and an actuation assembly 670. The first motor 660 may be disposed within the housing assembly, thereby allowing the first motor 660 to remain relatively fixed to the housing assembly. In a preferred embodiment, the first motor 660 may be connected to a reducer, and power may be output outward through the output shaft of the reducer. In this disclosure, the reducer may be a gear reducer or the like, and by using a gear reducer, the rotation axis of the first motor 660 may differ from the rotation axis of the reducer's output shaft.

[0115] In a preferred embodiment, the rotation axis of the first motor 660 may be located in a vertical plane, and this vertical plane is perpendicular to the front-back direction, which is the direction of movement of the floor brush assembly 600 on the surface to be cleaned when the surface cleaning device cleans the surface. Within this vertical plane, the rotation axis of the first motor 660 forms a preset angle with the vertical line.

[0116] Similarly, the rotation axis of the first motor 660 can be arranged parallel or substantially parallel to the rotation axis of the output shaft of the reducer, thereby allowing the reducer of this disclosure to have a relatively simple structure.

[0117] The first motor 660 is connected to the actuation component 670, thereby enabling the first motor 660 to drive the actuation component 670 to lift and / or rotate.

[0118] Figure 7 This is a schematic diagram of the structure of a first motor 660 and an actuation assembly according to one embodiment of the present disclosure. Figure 8This is an exploded structural diagram of a first motor 660 and an actuation assembly according to one embodiment of the present disclosure.

[0119] like Figure 7 and Figure 8 As shown, the actuation component 670 of this disclosure is driven to move between a first position and a second position, such that the actuation component 670 changes height relative to the bottom surface of the housing assembly; wherein, when the actuation component 670 is in the first position, the actuation component 670 drives the cleaning head assembly 650 and causes the cleaning head assembly 650 to be in the raised position; when the actuation component 670 is in the second position, the actuation component 670 drives the cleaning head assembly 650 and causes the cleaning head assembly 650 to be in the lowered position.

[0120] Simultaneously, when the actuation component 670 is in the second position, it can be driven to rotate, and the actuation component 670 drives the cleaning head assembly 650 to rotate. Similarly, when the actuation component 670 is in the first position, it can also be driven to rotate, and the actuation component 670 drives the cleaning head assembly 650 to rotate. The rotation directions of the cleaning head assembly 650 in the rising direction and the lowering direction are opposite.

[0121] Figure 9 This is an exploded structural diagram of an actuation component according to one embodiment of the present disclosure.

[0122] In a specific embodiment, such as Figure 9 As shown, the actuation assembly 670 of this disclosure may include components such as a first bracket 671, a second bracket 672, and a limiting element 673.

[0123] The first bracket 671 is configured to receive the driving force of the first motor 660. That is, the first bracket 671 can be fixed to the output shaft of the first motor 660 or to the output shaft of the reducer. Thus, the position of the first bracket 671 in the height direction will not change. At the same time, the first bracket 671 can be driven and rotated by the first motor 660.

[0124] Specifically, the first bracket 671 of this disclosure is cylindrical in shape, and its upper end is provided with a non-circular hole for connecting with the output shaft of the first motor 660 or the output shaft of the reducer. In actual use, the output shaft of the first motor 660 or the output shaft of the reducer can be inserted into the non-circular hole, thereby realizing the transmission connection between the first motor 660 and the first bracket 671.

[0125] In addition, a protrusion 671A is provided on the outer peripheral surface of the first bracket 671, and the protrusion 671A is located near the lower end of the first bracket 671.

[0126] The second bracket 672 cooperates with the first bracket 671 so that when the second bracket 672 is in the second position and the first bracket 671 rotates in the first direction, the first bracket 671 drives the second bracket 672 to rotate; when the second bracket 672 is in the second position and the first bracket 671 rotates in the second direction, the first bracket 671 drives the second bracket 672 to move from the second position to the first position.

[0127] Specifically, a spiral groove 672A is formed on the inner surface of the second bracket 672, and a protrusion 671A is disposed in the spiral groove 672A and can slide along the spiral groove 672A so that the first bracket 671 and the second bracket 672 cooperate.

[0128] Specifically, such as Figure 7 As shown, the second bracket 672 is in the first position at this time. In this first position, if the first bracket 671 is driven and rotates clockwise (viewed from top to bottom, the same below), the protrusion 671A of the first bracket 671 will be restricted by the limiting block at the lower end of the spiral groove 672A of the second bracket 672, so that the second bracket 672 and the first bracket 671 rotate clockwise synchronously. At this time, although the cleaning head assembly 650 is not in contact with the surface to be cleaned, cleaning liquid can be provided to the cleaning head assembly 650 when it rotates, so that the cleaning head assembly 650 is wetted and in a state that can clean the surface to be cleaned.

[0129] At this first position, if the first bracket 671 is driven and rotates counterclockwise (viewed from top to bottom, the same below), the protrusion 671A of the first bracket 671 will slide within the spiral groove 672A of the second bracket 672. Simultaneously, since the vertical position of the first bracket 671 remains unchanged, the second bracket 672 will be pushed and move downwards. Next, as the second bracket 672 gradually descends and reaches the second position, the protrusion 671A will be restricted in position by the limiting element 673. At this point, the second bracket 672 will not descend further but will rotate counterclockwise synchronously with the first bracket 671.

[0130] When the second bracket 672 is in the second position, at least a portion of the cleaning head assembly 650 will be in contact with the surface to be cleaned. Thus, when the second bracket 672 rotates, the cleaning head assembly 650 can be driven and rotated by the second bracket 672, thereby achieving wet cleaning of the surface to be cleaned. In particular, the cleaning head assembly 650 can clean corners and other locations, improving the cleaning effect of the surface cleaning equipment.

[0131] In this disclosure, a limiting element 673 is disposed on the second bracket 672 to limit the relative movement between the first bracket 671 and the second bracket 672. That is, the limiting element 673 of this disclosure can be fixed together with the second bracket 672, and at least a portion of the limiting element 673 is used to limit the protrusion of the first bracket 671.

[0132] Specifically, the lower end of the spiral groove 672A of the second bracket 672 does not penetrate the second bracket 672; that is, the lower end of the spiral groove 672A of the second bracket 672 has a limiting block, which prevents the protrusion 671A of the first bracket 671 from detaching from the lower end of the spiral groove 672A. Furthermore, the limiting element 673 is fixed to the upper end of the second bracket 672, and the limiting element 673 blocks the upper end of the spiral groove 672A of the second bracket 672, thus preventing the protrusion 671A of the first bracket 671 from detaching from the upper end of the spiral groove 672A.

[0133] During the assembly of the actuation component, the protrusion of the first bracket 671 can be placed in the spiral groove 672A first, and then the limiting element 673 can be installed on the upper end of the second bracket 672 to realize the installation of the actuation component. The installation process is convenient.

[0134] In a preferred embodiment, the second bracket 672 further includes an upwardly extending protrusion 672B, which can be inserted into the first bracket 671 from the lower end. Thus, when the second bracket 672 is in the first position, at least a portion of the protrusion 672B can be disposed inside the first bracket 671. At the same time, the cleaning head assembly 650 can be fixed to the protrusion 672B, that is, the upper end of the cleaning head assembly 650 can be inserted into and fixed inside the protrusion 672B. Thus, the side cleaning module composed of the first motor 660, the actuation assembly 670 and the cleaning head assembly 650 of this disclosure has a smaller height.

[0135] In a preferred embodiment, the cleaning head assembly 650 is detachably fixed to the protrusion 672B and can be driven and rotated by the protrusion 672B.

[0136] Figure 10 This is a schematic diagram of the structure of an actuation component according to one embodiment of the present disclosure. Figure 11 This is a schematic diagram of the structure of a damping element according to one embodiment of the present disclosure.

[0137] like Figure 10 and Figure 11As shown, the actuation assembly of this disclosure may include a damping element 674, which can be fixed to the housing assembly. For example, the damping element 674 is fixed to the base portion 610 of the housing assembly and is located below the base portion 610. In other words, the actuation assembly 670 of this disclosure can be located entirely below the base portion 610. Accordingly, the output shaft of the first motor 660 or the output shaft of the reducer can pass through the base portion 610 and be drive-connected to the actuation assembly.

[0138] The damping element 674 can be located outside the second support 672. For example, the damping element 674 can be cylindrical and sleeved on the outside of the second support 672, thereby applying a preset damping to the second support 672.

[0139] Specifically, the damping applied by the damping element 674 to the second support 672 must ensure that the second support 672 does not rotate during the rising or falling process, or even if the second support 672 rotates during the rising or falling process, the rotational speed of the second support 672 is less than that of the first support 671. In other words, during the rising or falling process, the second support 672 cannot rotate at the same speed as the first support 671; otherwise, the second support 672 will be unable to rise or fall.

[0140] In a specific embodiment, such as Figure 11 As shown, the damping element 674 includes a base 674A, which is a cylindrical component, and a slot is provided on the side wall of the base 674A. A damping part 674B is provided in the slot, which can apply damping to the second support 672.

[0141] In this disclosure, both ends of the damping portion 674B are connected to the sidewall of the slot via elastic members 674C. Thus, when the second support 672 is not provided inside the damping element 674, at least a portion of the damping portion 674B can be located inside the base 674A. Correspondingly, when the second support 672 is installed inside the damping element 674, the damping element 674 can apply a positive pressure to the second support 672, and the positive pressure causes friction to be formed between the damping element 674 and the second support 672. Furthermore, the damping effect of the damping element 674 on the second support 672 is formed by the friction.

[0142] On the other hand, the damping applied by the damping element 674 to the second support 672 should not be too large. Specifically, the maximum value of the damping applied by the damping element 674 to the second support 672 is set such that when the second support 672 is in the first position or in the second position, and when the second support 672 does not move up or down, the first support 671 can drive the second support 672 to rotate.

[0143] In this disclosure, the number of damping parts 674B can be set to multiple, for example, the number of damping parts 674B can be set to three, and these three damping parts 674B can be evenly distributed along the circumferential direction of the base 674A.

[0144] Figure 12 This is a schematic diagram of the structure of the avoidance part 611 according to one embodiment of the present disclosure. Figure 13 This is a schematic diagram of the structure of the avoidance section according to another embodiment of the present disclosure.

[0145] like Figure 12 As shown, the housing assembly of this disclosure restricts the clearance portion 611, and at least a portion of the actuation assembly 670 is disposed within the clearance portion 611.

[0146] In one embodiment, the lower surface of the base portion 610 is formed to be generally planar, that is, the base portion 610 has a generally planar bottom wall, wherein at least a portion of the bottom wall of the base portion 610 is recessed upward to form a clearance portion 611, thereby the clearance portion 611 includes a clearance space, and the clearance portion 611 includes a clearance side wall 611A, a clearance top wall 611B and a clearance edge 611C; the clearance side wall 611A and the clearance top wall 611B can enclose the clearance space, and the clearance edge 611C is the peripheral area of ​​the clearance space.

[0147] In this disclosure, the cleaning head assembly 650 is rotatably disposed at the clearance portion, so that when the cleaning head assembly 650 rotates or when the height of the cleaning head assembly 650 relative to the bottom wall of the base portion 610 changes, the cleaning head assembly 650 does not interfere with the clearance edge 611C of the clearance portion 611.

[0148] In a preferred embodiment, the base portion 610 includes a generally planar sidewall, for example, the sidewall may be located in a vertical plane, and at least a portion of the clearance portion 611 extends on the sidewall. That is, in this disclosure, even when the cleaning head assembly 650 is in the raised position, at least a portion of the cleaning head assembly 650 may still be located outside the projection of the floor brush assembly 600 on the horizontal plane. Based on this, it is necessary to leave an area in the sidewall of the base portion 610 to clearance the cleaning head assembly 650, and to allow at least a portion of the clearance portion 611 to extend on the sidewall of the base portion 610.

[0149] Furthermore, the clearance portion 611 forms clearance edges 611C on the bottom wall of the base portion 610, at least one of these clearance edges 611C is inclined, thereby the clearance edge 611C can be substantially parallel to the inclined cleaning head assembly 650, so as to facilitate the housing of at least a portion of the cleaning head assembly 650 in the clearance portion 611.

[0150] More preferably, at least a portion of the clearance sidewall 611A of the clearance portion 611 is formed in an arc shape, and accordingly, the disc-shaped cleaning head assembly 650 can be better accommodated by the arc-shaped clearance sidewall 611A.

[0151] Figure 14 This is a schematic diagram of the structure of a cleaning head assembly 650 according to one embodiment of the present disclosure.

[0152] like Figure 14 As shown, the cleaning head assembly 650 of this disclosure may include a cleaning disc 651 and a cleaning element 652; wherein the cleaning disc 651 can be detachably disposed on the actuation assembly 670, for example, detachably disposed on the second bracket 672, so that the cleaning head assembly 650 of this disclosure can be removed from the floor brush assembly 600.

[0153] The cleaning disc 651 disclosed herein can move synchronously with the second support 672. Specifically, when the second support 672 rises or falls, it can drive the cleaning disc 651 to rise or fall synchronously. At the same time, when the second support 672 rotates, it can drive the cleaning disc 651 to rotate.

[0154] The cleaning element 652 can be fixed to the cleaning disc 651, for example, by attaching the cleaning element 652 to the cleaning disc 651 with Velcro. Thus, when the cleaning disc 651 rotates, it can drive the cleaning element 652 to rotate, and make the cleaning element 652 rub against the surface to be cleaned, thereby achieving the cleaning of the surface to be cleaned.

[0155] In this disclosure, the cleaning element 652 can be made of materials such as velvet and can be formed into a ring shape; moreover, a rubber-coated portion 653 is formed on the outer side of the cleaning disc 651, and the rubber-coated portion 653 can be located above the cleaning element 652. In this disclosure, multiple perforations are formed on the rubber-coated portion 652. When cleaning liquid is provided to the perforations of the rubber-coated portion 653, the cleaning liquid can flow to the cleaning element 652 under the action of gravity, thereby wetting the cleaning element 652.

[0156] The cleaning disc 651 and cleaning element 652 of this disclosure can be formed into a circular structure, or into a semi-circular structure or a fan-shaped structure, etc. Further details will not be provided here.

[0157] When the surface cleaning device is positioned on the surface to be cleaned, which is approximately horizontal, a first angle greater than 0° is formed between the cleaning element 652 and the surface to be cleaned. In other words, when the actuation assembly 670 is in the second position, the cleaning head assembly 650 is in a working state. At this time, at least a portion of the cleaning element 652 of the cleaning head assembly 650 can contact the surface to be cleaned. Thus, through the rotation of the cleaning element 652, frictional contact is achieved between the cleaning element 652 and the surface to be cleaned, thereby cleaning the surface.

[0158] Preferably, the cleaning element 652 has a circular outline. Along the lateral direction of the floor brush assembly 600, the cleaning element 652 has a first portion located outside the housing assembly of the floor brush assembly 600 and a second portion located inside the housing assembly of the floor brush assembly 600; wherein, the first portion of the cleaning element 652 located outside the housing assembly of the floor brush assembly 600 means that the projection of the first portion of the cleaning element 652 onto the surface to be cleaned is located outside the projection of the housing assembly onto the surface to be cleaned.

[0159] At this time, when the actuation component 670 is in the second position, at least a portion of the first part of the cleaning element 652 can contact the surface to be cleaned, and correspondingly, at least a portion of the second part of the cleaning element 652 can move away from the surface to be cleaned, so that at least a portion of the second part does not contact the surface to be cleaned.

[0160] Accordingly, when the actuation assembly 670 is in the first position, the cleaning element 652 is generally away from the surface to be cleaned and does not contact the surface to be cleaned. At this time, the second part of the cleaning element 652 is located at a higher position than the first part of the cleaning element 652.

[0161] In this disclosure, the cleaning disc 651 has a rotation axis, and the cleaning element 652 has a rotation axis. The rotation axis of the cleaning disc 651 and the rotation axis of the cleaning element 652 are the same, that is, the cleaning head assembly 650 has only one rotation axis.

[0162] Furthermore, the rotation axis of the cleaning head assembly 650 does not coincide with the rotation axis of the first motor 660. More specifically, the rotation axis of the cleaning head assembly 650 of this disclosure coincides with the rotation axis of the output shaft of the reducer, and correspondingly, the rotation axis of the cleaning head assembly 650 and the rotation axis of the first motor 660 are arranged parallel to each other; of course, due to different reducer structures, the rotation axis of the first motor 660 may not be parallel to the rotation axis of the cleaning head assembly 650.

[0163] In a preferred embodiment, the rotation axis of the cleaning head assembly 650 is further away from the center of the floor brush assembly 600 than the rotation axis of the first motor 660. Thus, the first motor 660 of this disclosure can be positioned as far away from the edge of the floor brush assembly 600 as possible, thereby providing sufficient space for the installation of the cleaning head assembly 650.

[0164] In this disclosure, the rotation axis of the cleaning head assembly 650 can be located in a vertical plane, and this vertical plane is perpendicular to the front-to-back direction, which is the direction of movement of the floor brush assembly 600 on the surface to be cleaned when the surface cleaning device cleans the surface. Within this vertical plane, the rotation axis of the cleaning head assembly 650 has a preset angle with the vertical line, that is, the rotation axis of the cleaning head assembly 650 is inclined. Preferably, the rotation axis of the cleaning head assembly 650 can also be parallel or substantially parallel to the rotation axis of the first motor 660.

[0165] Figure 15 This is a schematic diagram of the structure of a liquid supply assembly according to one embodiment of the present disclosure. Figure 16 This is a schematic diagram of a liquid supply assembly according to one embodiment of the present disclosure. Figure 17 This is a structural schematic diagram of a valve stem and valve cover according to one embodiment of the present disclosure. Figure 18 This is a cross-sectional structural schematic diagram of a valve component according to one embodiment of the present disclosure.

[0166] like Figures 15 to 18 As shown, the floor brush assembly 600 of this disclosure also includes a liquid supply assembly 680, through which cleaning liquid is supplied to the cleaning head assembly 650.

[0167] The liquid supply assembly 680 disclosed herein can be connected to a liquid supply pump; of course, the liquid supply assembly 680 can also be connected to the supply tank 300 via a separately configured pump.

[0168] Specifically, the liquid supply assembly 680 may include a valve device 681 and a spray head 682; wherein the valve device 681 can be fixed to the base portion 610 of the housing assembly, thereby the valve device 681 can be driven by an actuation assembly 670 (e.g., the second bracket 672 of the actuated assembly 670) to be in an open or closed state, wherein when the valve device 681 is in the open state, cleaning liquid can be supplied to the cleaning head assembly 650 through the liquid supply assembly 680, and when the valve device 681 is in the closed state, the liquid supply assembly 680 cannot supply cleaning liquid to the cleaning head assembly 650.

[0169] In another embodiment, since the cleaning head assembly 650 can be fixedly connected to the second bracket 672 of the actuation assembly 670, it can also be considered that the valve device 681 can be driven by the cleaning head assembly 650 to be in an open or closed state.

[0170] like Figure 17 and Figure 18 As shown, the valve device 681 of this disclosure includes a valve body 681A, a valve stem 681B, and a valve cover 681C; wherein, the valve body 681A forms a liquid flow path, which can be arranged along the axial direction of the valve body 681A; at the same time, the valve body 681A also includes an inlet pipe and an outlet pipe, both of which are connected to the liquid flow path of the valve body 681A; wherein, the inlet pipe can be connected to a liquid supply pump, and the outlet pipe can be connected to a spray head 682.

[0171] The valve cover 681C is disposed at the upper end of the valve body 681A and closes the valve body 681A from the top. The valve stem 681B is inserted into the valve body 681A from the lower end, so that the valve stem 681B has an open position and a closed position. When the valve stem 681B is in the open position, the valve device 681 can be in the open state. Correspondingly, when the valve stem 681B is in the closed position, the valve device 681 can be in the closed state.

[0172] In this disclosure, the valve stem 681B can be driven by the actuation assembly 670 to move between an open position and a closed position. Specifically, when the second support 672 of the actuation assembly 670 is in the second position, the valve stem 681B is in the open position; when the second support 672 moves upward from the second position to the first position, the second support 672 can drive the valve stem 681B to rise and move from the open position to the closed position. When the second support 672 descends and moves from the first position to the second position, the valve stem 681B can move from the open position to the closed position under the action of the spring 681D.

[0173] like Figure 18 As shown, the valve device 681 is in the closed state, that is, the valve stem 681B is in the closed position, and at this time, the inlet pipe and the outlet pipe are not connected. Those skilled in the art should know that the inlet pipe can be either of the two pipes, and correspondingly, the outlet pipe can be the other of the two pipes. In a preferred embodiment, the inlet pipe is located above the outlet pipe, so that the outlet pipe can be easily connected to the spray head 682.

[0174] When the valve stem 681B is driven by the spring 681D and moves downward, the valve stem 681B can be in the open position, thus connecting the inlet pipe and the outlet pipe.

[0175] In this disclosure, the lower end of the second bracket 672 of the actuation assembly 670 has an outer flange. The lower end of the valve stem 681B can contact the upper surface of the outer flange of the second bracket 672. Therefore, when the second bracket 672 rotates, the lower end of the valve stem 681B can slide against the upper surface of the outer flange of the second bracket 672, thus the valve stem 681B will not affect the rotation of the second bracket 672 of the actuation assembly 670. Correspondingly, when the second bracket 672 moves upward, that is, when the second bracket 672 moves from the second position to the first position, the valve stem 681B is driven to move upward, and correspondingly, the valve stem 681B can move from the open position to the closed position. When the second bracket 672 moves downward, the valve stem 681B is allowed to move downward, and correspondingly, under the action of the restoring force provided by the spring 681D, the valve stem 681B can move from the closed position to the open position.

[0176] See again Figure 18 In this disclosure, the valve stem 681B includes a first sealing part 681B1 and a second sealing part 681B2. One end of the spring can be abutted on the valve cover, and the other end of the spring can be abutted on the second sealing part 681B2. Both the first sealing part 681B1 and the second sealing part 681B2 can make sealing contact with the inner wall of the liquid flow path of the valve body 681A.

[0177] Furthermore, the first sealing part 681B1 is positioned so as to always be below the outlet pipe; the second sealing part 681B2 is positioned such that it can be located between the inlet pipe and the outlet pipe, and can be located below the outlet pipe, but not above the inlet pipe. Therefore, during the up-and-down movement of the valve stem 681B, the valve device can be in an open or closed state. Specifically, when the valve stem 681B is in the open position, the second sealing part 681B2 is located below the outlet pipe; when the valve stem 681B is in the closed position, the second sealing part 681B2 is located between the inlet pipe and the outlet pipe.

[0178] In this disclosure, since the valve stem 681B needs to be driven by the actuation assembly 670, the lower end of the valve stem 681B can pass through the clearance top wall 611B of the clearance portion 611 and be located within the clearance space of the clearance portion 611.

[0179] The spray head 682 is disposed on the base portion 610, and one end of the spray head 682 can pass through the side wall of the clearance portion 611 and be located in the clearance space of the clearance portion 611. Thus, the cleaning liquid provided by the spray head 682 can be provided to the cleaning head assembly 650, for example, to the hollow of the rubber-coated portion 653 of the cleaning head assembly 650.

[0180] Figure 19This is a schematic diagram of the structure of a first sensor assembly 690 according to one embodiment of the present disclosure. Figure 20 yes Figure 19 An enlarged schematic diagram of part A.

[0181] like Figure 19 and Figure 20 As shown, the floor brush assembly 600 of this disclosure also includes a first sensor assembly 690, which is configured to at least generate usage data indicating that the surface cleaning device is approaching a wall. The first sensor assembly 690 can be disposed on the housing assembly of the floor brush assembly 600, for example, on the cover portion 620 of the housing assembly; of course, the first sensor assembly 690 can also be disposed on the base portion 610 of the housing assembly. More preferably, the first sensor assembly 690 can be located directly above the cleaning head assembly 650.

[0182] The first sensor assembly 690 can be a proximity sensor, such as a distance sensor, which is used to detect a first distance between the sidewall of the floor brush assembly 600 and the wall.

[0183] In some embodiments, the sidewalls of the floor brush assembly 600 are arranged substantially vertically. Specifically, the sidewalls of the housing assembly of the floor brush assembly 600 are formed as substantially vertical planes, which are substantially perpendicular to the lateral direction of the floor brush assembly 600. More specifically, the base portion 610 and / or the cover portion 620 of the housing assembly of the floor brush assembly 600 both include substantially vertically arranged sidewalls. Accordingly, a first sensor assembly 690 is disposed on the substantially vertical sidewall, thereby enabling accurate detection of the distance between the sidewall of the floor brush assembly 600 and the wall (external object).

[0184] In this disclosure, when the distance sensor is set to one, it can be installed on the right side wall of the floor brush assembly 600 in the forward direction. That is, when the surface cleaning device is actually used, due to the special nature of the user's walking trajectory, the right side of the floor brush assembly 600 is generally prone to contact with the wall, etc. Accordingly, placing the distance sensor on the right side wall makes it easier for the distance sensor to detect the distance between the floor brush assembly 600 and the wall, resulting in better performance. On the other hand, the distance sensor can also be set to two, and the distance sensor can be installed on both the left and right side walls of the floor brush assembly 600 in the forward direction. Thus, the distance between the floor brush assembly 600 and the wall surfaces located on both sides of the floor brush assembly 600 can be sensed by the distance sensor.

[0185] In a preferred embodiment, the distance sensor includes an optical sensor, an infrared sensor, a laser sensor, etc. In this case, the distance sensor may include a transmitting unit 691 and a receiving unit 692; the transmitting unit 691 is capable of transmitting light signals, infrared signals, or laser signals; the receiving unit 692 is capable of receiving the echo signals of the light signals, infrared signals, or laser signals, thereby obtaining the distance between the distance sensor and the wall based on the time difference between the light signals, infrared signals, or laser signals transmitted by the transmitting unit 691 and the echo signals. Furthermore, since the distance sensor is fixed in position on the housing assembly, the distance between the housing assembly (i.e., the floor brush assembly 600) and the wall can be obtained.

[0186] In this disclosure, a through hole is provided on the cover portion 620, through which the transmission signal and echo signal of the distance sensor can be transmitted.

[0187] The surface cleaning device disclosed herein may further include a controller connected to a first sensor assembly 690, thereby receiving the distance between the floor brush assembly 600 and the wall detected by the first sensor assembly 690, and controlling the operation of the first motor 660 based on the distance between the floor brush assembly 600 and the wall. Specifically, the controller can turn the power supply to the first motor 660 on and off; when the power supply to the first motor 660 is turned on, the first motor 660 is in a working state, and correspondingly, the cleaning head assembly 650 is also in a working state, thereby enabling the cleaning head assembly 650 to clean the surface to be cleaned, especially the corners near the wall; when the power supply to the first motor 660 is turned off, the first motor 660 is in a non-working state, and correspondingly, the cleaning head assembly 650 is also in a non-working state, at which time the cleaning head assembly 650 can be in a raised position so that the cleaning head assembly 650 does not contact the surface to be cleaned.

[0188] More specifically, the controller can compare the first distance detected by the first sensor component 690 between the floor brush component 600 and the wall with a preset distance threshold. When the first distance is greater than the preset distance threshold, it indicates that the floor brush component 600 is not close to the wall. At this time, when the cleaning head component 650 is in the raised position, the cleaning head component 650 is kept in the raised position. When the cleaning head component 650 is in the lowered position, the controller can control the first motor 660 to reverse, thereby raising the cleaning head component 650 from the lowered position to the raised position and putting the cleaning head component 650 in a non-working state. And after the cleaning head component 650 is in the raised position, the power supply to the first motor 660 is turned off.

[0189] In another scenario, when the first distance is less than or equal to a preset distance threshold, it indicates that the floor brush assembly 600 is operating close to the wall. At this time, when the cleaning head assembly 650 is in the raised position, the power supply to the first motor 660 is turned on, causing the first motor 660 to be in working condition. When the first motor 660 is in working condition, it can cause the cleaning head assembly 650 to descend, that is, the cleaning head assembly 650 can be lowered from the raised position to the lowered position. In the lowered position, the cleaning head assembly 650 can clean the surface to be cleaned. When the cleaning head assembly 650 is in the lowered position, the first motor 660 is kept in working condition so that the cleaning head assembly 650 can continuously clean the surface to be cleaned.

[0190] In a similar working process, the controller of this disclosure can also increase and decrease the output power of the first motor 660; specifically, when the first distance is greater than a preset distance threshold, if the first motor 660 is in working state, the output power of the first motor 660 can be reduced; when the first distance is less than or equal to the preset distance threshold, the output power of the first motor 660 can be increased over time, thereby enabling the cleaning head assembly 650 to have a better edge cleaning effect.

[0191] On the other hand, the controller disclosed herein can also increase and decrease the rotational speed of the first motor 660. Specifically, when the first distance is greater than a preset distance threshold, if the first motor 660 is in operation, the rotational speed of the first motor 660 can be reduced; when the first distance is less than or equal to the preset distance threshold, the rotational speed of the first motor 660 can be increased over time, thereby enabling the cleaning head assembly 650 to have a better edge cleaning effect.

[0192] In this disclosure, the controller can also control the electric suction source. Specifically, the controller can turn the power supply to the electric suction source on and off, thereby putting the electric suction source into a working state. In addition, the controller can also increase and decrease the suction power of the electric suction source. Specifically, when the first distance is greater than a preset distance threshold, the cleaning head assembly 650 is in a non-working state, and the suction power of the electric suction source can be reduced; conversely, when the first distance is greater than the preset distance threshold, the cleaning head assembly 650 is in a working state, and the controller increases the suction power of the electric suction source, so that both the cleaning head assembly 650 and the agitator 630 can obtain the negative pressure required to clean the surface to be cleaned, thus enabling the surface cleaning device of this disclosure to have a better cleaning effect.

[0193] The controller is also used to obtain the amount of cleaning liquid in the supply tank 300 before the first motor 660's operating cycle; for example, the supply tank 300 may be equipped with a sensor to detect the volume of the cleaning liquid, thereby enabling the controller to obtain the amount of cleaning liquid in real time and, based on this, the rate of consumption of the cleaning liquid, etc.

[0194] When the first motor 660 is running and the cleaning head assembly 650 is in the lowered position, the cleaning liquid in the supply tank 300 is supplied to the cleaning head assembly 650 via the liquid distributor.

[0195] The controller controls the liquid dispenser and reduces its power when the amount of cleaning liquid consumed is too high during each operating cycle of the first motor 660. In other words, during the operation of the first motor 660, if the rate of cleaning liquid consumption is greater than or equal to a preset first speed threshold, the amount of cleaning liquid consumed during each operating cycle of the first motor 660 will be too high. At this time, the power of the liquid dispenser can be reduced to reduce the rate of cleaning liquid consumption.

[0196] Similarly, when the amount of cleaning liquid used is too low during each operating cycle of the first motor 660, the power of the liquid distributor is increased. That is, during the operation of the first motor 660, when the consumption rate of the cleaning liquid is less than or equal to the preset second speed threshold, the amount of cleaning liquid used during each operating cycle of the first motor 660 will be too low. At this time, the power of the liquid distributor can be increased to increase the consumption rate of the cleaning liquid. Thus, during the use of the surface cleaning equipment, an appropriate amount of cleaning liquid can be provided to the surface to be cleaned, thereby improving the cleaning effect of the surface to be cleaned.

[0197] More preferably, the first speed threshold is greater than the second speed threshold.

[0198] In a preferred embodiment, the surface cleaning apparatus of this disclosure may further include a solenoid valve for turning on or off the supply of cleaning liquid to the cleaning head assembly 650; wherein the controller is configured to control the solenoid valve such that the supply of cleaning liquid to the cleaning head assembly 650 is stopped when the amount of cleaning liquid used is excessive during each operating cycle of the first motor 660; and / or, the supply of cleaning liquid to the cleaning head assembly 650 is turned on when the amount of cleaning liquid used is insufficient during each operating cycle of the first motor 660.

[0199] The solenoid valve of this disclosure, together with the spray head 682, forms a liquid distribution assembly in another embodiment. That is, the valve device 681 of this disclosure can be replaced by the solenoid valve, thus forming a different technical solution.

[0200] In this disclosure, the controller processes usage data of the first motor 660 and receives notifications that the cleaning head assembly 650 needs maintenance based on this data. Specifically, the surface cleaning device of this disclosure may further include a current sensor for detecting the current flowing through the first motor 660; thus, when the current flowing through the first motor 660 is greater than or equal to a preset current threshold, it can be determined that the first motor 660 is in a stalled state, at which point the user needs to be notified to perform maintenance on the cleaning head assembly 650.

[0201] Specifically, maintenance notifications for the cleaning head assembly 650 include: the cleaning head assembly 650 is tangled; the cleaning head assembly 650 is stuck in rotation; and / or, the cleaning head assembly 650 is stuck in movement, etc.

[0202] In addition, the controller processes the usage data of the first motor 660 and obtains a notification that the cleaning element 652 needs maintenance based on the usage data of the first motor 660. Specifically, the surface cleaning device of this disclosure may also include a current sensor for detecting the current flowing through the first motor 660; thereby, the controller can obtain the operating time of the first motor 660 based on the current flowing through the current sensor, and correspondingly, can obtain the operating time of the cleaning element 652 based on the operating time of the first motor 660; when the operating time of the cleaning element 652 is greater than a first preset time threshold, the cleaning element 652 needs to be cleaned. At this time, the surface cleaning device can dock at the base station 900, and the cleaning element 652 of the surface cleaning device can be cleaned through the base station 900. On the other hand, when the operating time of the cleaning element 652 is greater than or equal to a second preset time threshold, the cleaning element 652 needs to be replaced. Thus, the cleaning element 652 of this disclosure can be kept in a clean state, thereby improving the cleaning effect of the surface cleaning device on the surface to be cleaned.

[0203] Figure 21 This is a schematic diagram of the scraping assembly and suction head according to one embodiment of the present disclosure. Figure 22 This is a structural schematic diagram of the scraping assembly and suction head according to one embodiment of the present disclosure from another angle. Figure 23 This is a schematic diagram of the structure of a scraping assembly according to one embodiment of the present disclosure. Figure 24 This is a structural schematic diagram of a scraping assembly according to one embodiment of the present disclosure from another angle. Figure 25 This is a schematic diagram of the suction head according to one embodiment of the present disclosure.

[0204] like Figures 21 to 24As shown, the floor brush assembly 600 of this disclosure may further include a scraping assembly 700, wherein the scraping assembly 700 is mounted on the housing assembly; when the cleaning head assembly 650 changes from a raised position to a lower position, at least a portion of the cleaning head assembly 650 interferes with the scraping assembly 700 so that the scraping assembly 700 scrapes away dirt adhering to the cleaning head assembly 650 by the rotation of the cleaning head assembly 650.

[0205] In a preferred embodiment, the scraping assembly 700 can be detached from or mounted on the housing assembly. Specifically, when the user no longer needs the side cleaning function, they can detach the cleaning head assembly 650 from the housing assembly, and correspondingly, they can also detach the scraping assembly 700 from the housing assembly. When the user needs to maintain the cleaning head module 650 and the scraping assembly 700, they can also detach them from the housing assembly, and then clean or replace the cleaning head module 650, and clean and maintain the scraping assembly 700.

[0206] In this disclosure, the scraping component 700 is mounted on the base portion 610 of the housing assembly. For example, the scraping component 700 can be fixed to the bottom wall of the base portion 610, and at least a portion of the scraping component 700 is located below the base portion 610.

[0207] In some embodiments, during operation, the roller and agitator 630 support the floor brush assembly 600, for example, the base portion 610 of the floor brush assembly, and prevent the scraping assembly 700 from interfering with the surface to be cleaned; that is, during the operation of the surface cleaning device, the bottom surface of the scraping assembly 700 is spaced apart from the surface to be cleaned, so that the scraping assembly 700 does not come into contact with the surface to be cleaned. Thus, the scraping assembly 700 will not damage the surface to be cleaned, and the surface to be cleaned will not damage the scraping assembly 700.

[0208] In a preferred embodiment, the bottom surface of the scraping component 700 is substantially flush with the bottom surface of the housing component, thereby ensuring that the bottom surface of the housing component and the bottom surface of the scraping component 700 are at approximately the same distance from the surface to be cleaned. Alternatively, at least a portion of the bottom surface of the scraping component 700 may protrude beyond the bottom surface of the housing component, thereby reducing the distance between the bottom surface of the scraping component 700 and the surface to be cleaned to a smaller distance between the bottom surface of the housing component and the surface to be cleaned. Consequently, the cleaning head assembly 650 and the first motor 660, among other components, do not protrude excessively from the upper surface of the housing component in the vertical direction, resulting in a more aesthetically pleasing surface cleaning device.

[0209] In one embodiment, the scraping assembly 700 is connected to the nozzle 640 of the floor brush assembly 600 or the recovery line 401 via the suction head 710; more preferably, the suction head 710 of this disclosure can be fixed to the base portion 610 of the housing assembly and located inside the base portion 610. That is, after the scraping assembly 700 of this disclosure removes dirt and cleaning liquid from the cleaning head assembly 650, the dirt and cleaning liquid can be drawn through the suction head 710 to the nozzle 640 or the recovery line 401, and then enter the recovery tank 400 with the airflow in the recovery line 401.

[0210] In this disclosure, since the cleaning head assembly 650 is used less frequently and the contact area between the cleaning head assembly 650 and the surface to be cleaned is small when the cleaning head assembly 650 is used, there is less dirt on the cleaning head assembly 650. Therefore, the suction head 710 of this disclosure has a smaller inner diameter, so that most of the negative pressure in the recovery line 401 is provided to the nozzle 640 and a small portion is provided to the suction head 710. As a result, the floor brush assembly 600 of this disclosure can reasonably distribute the negative pressure and improve the cleaning effect of the floor brush assembly 600.

[0211] In a preferred embodiment, a solenoid valve may be provided between the suction head 710 and the suction nozzle 640 or the recovery line 401, thereby opening or closing the liquid flow path between the suction head 710 and the suction nozzle 640 or the recovery line 401 by controlling the opening and closing of the solenoid valve. Specifically, when the cleaning head assembly 650 of this disclosure is in the working state (at this time, the cleaning head assembly 650 is in the lowered position), the solenoid valve can be opened so that the dirt and cleaning liquid generated by the cleaning head assembly 650 can be sucked into the recovery tank 400; on the other hand, when the cleaning head assembly 650 of this disclosure is in the non-working state (at this time, the cleaning head assembly 650 is in the raised position), the solenoid valve can be closed, thereby enabling the negative pressure to be fully provided to the suction nozzle 640, improving the cleaning effect of the floor brush assembly 600, and at the same time, since the electric suction source can operate at a lower power, the battery life of the surface cleaning equipment can also be improved.

[0212] In this disclosure, a filter screen 711 is provided at one end of the suction head 710 located within the scraping assembly 700; thereby, the suction head 710 can only draw up the liquid in the solid-liquid mixture (mixture of dirt and cleaning liquid) stored in the scraping assembly 700, and correspondingly, the solids in the solid-liquid mixture are retained within the scraping assembly 700, thereby effectively preventing the solids in the solid-liquid mixture from clogging the liquid flow path of the suction head 710 when the diameter of the liquid flow path of the suction head 710 is small.

[0213] After the surface cleaning equipment completes the cleaning operation, the scraping component 700 can be removed from the housing of the floor brush component 600 to clean the solids in the solid-liquid mixture held in the scraping component 700 in a timely manner. On the other hand, the filter screen 711 can be removed from the suction head 710, thereby allowing the filter screen 711 to be removed from the suction head 710 and the solid dirt attached to the filter screen 711 to be cleaned to prevent the solid dirt from producing odors.

[0214] The structure of the scraping component 700 will be described in detail below with reference to the accompanying drawings.

[0215] like Figures 22 to 24 As shown, the scraping assembly 700 of this disclosure may include components such as a base plate 701, a first side plate 702, a second side plate 703, a liquid storage section 704, and a scraper 705.

[0216] The base plate 701 includes a first direction and a second direction, wherein, along the first direction, the upper surface of the base plate 701 is inclined, for example, along the direction from the center of the floor brush assembly 600 to the side wall of the floor brush assembly 600, the upper surface of the base plate 701 is inclined upward from the first end to the second end, thereby allowing the cleaning liquid to flow from the second end to the first end under the action of gravity.

[0217] The base plate 701 has a first side plate 702 and a second side plate 703 respectively at both ends in the second direction. The first direction and the second direction are different directions, for example, the first direction and the second direction can be perpendicular to each other.

[0218] In this disclosure, the first side plate 702 and the second side plate 703 have substantially the same structure and both include a first part 702A and a second part 702B; in this disclosure, the first side plate 702 and the second side plate 703 have substantially the same structure, including the first side plate 702 and the second side plate 703 having a symmetrical arrangement.

[0219] The following description uses the structure of the first side plate 702 as an example. The first portion 702A of the first side plate 702 is disposed near the first end of the base plate 701 in a first direction. Correspondingly, the second portion 702B of the first side plate 702 is disposed near the second end of the base plate 701 in a first direction. Furthermore, in the height direction, the first portion 702A of the first side plate 702 has a larger dimension than the second portion 702B. In other words, the upper end of the first portion 702A is further away from the upper surface of the base plate 701 than the upper end of the second portion 702B.

[0220] In this disclosure, a liquid storage section 704 is provided on the base plate 701. The liquid storage section 704 is located at a first end near the base plate 701 in a first direction. At the same time, a baffle component 706 is provided at the second end of the base plate 701 in the first direction. Thus, the base plate 701, the liquid storage section 704, the first side plate 702, the second side plate 703, and the baffle component 706 together form an upward-opening liquid storage tank.

[0221] Meanwhile, a scraper 705 is also provided on the base plate 701. The scraper 705 is configured to extend upward from the upper surface of the base plate 701 by a predetermined distance. That is, the scraper 705 of this disclosure has a predetermined dimension in the height direction, and the upper end of the scraper 705 is higher than the upper end of the second part 702B of the first side plate 702, and also higher than the upper end of the second part of the second side plate 703. In other words, when the cleaning head assembly 650 of this disclosure is in the working state, that is, when the cleaning head assembly 650 is in the lowered position, at least a part of the cleaning head assembly 650 can interfere with the scraper 705, but does not interfere with the second part 702B of the first side plate 702, and correspondingly, does not interfere with the second part of the second side plate 703. Thus, the dirt and cleaning liquid carried on the cleaning head assembly 650 can be scraped off by the scraper 705 and recycled into the above-mentioned liquid storage tank.

[0222] In other words, considering that the cleaning head assembly 650 has different rotation directions, the dirt and cleaning liquid scraped off by the scraper 705 can be recycled to the area between the scraper 705 and the first side plate 702, or to the area between the scraper 705 and the second side plate 703; then, this dirt and cleaning liquid can flow to the first end of the base plate 701 under the action of gravity or under the action of negative pressure adsorption.

[0223] In a preferred embodiment, the upper surface of the scraper 705 is configured as an inclined surface and slopes downward along the direction from the middle of the floor brush assembly 600 to the edge of the floor brush assembly 600 (that is, along the direction from the first end to the second end of the base plate 701). Thus, the upper surface (i.e., the inclined surface) of the scraper 705 of this disclosure can be arranged substantially parallel to the lower surface of the cleaning element 652. Accordingly, the scraper 705 can have a preset interference depth with the cleaning element 652, which is substantially the same as the radial direction of the cleaning element 652.

[0224] The liquid storage section 704 of this disclosure has a liquid storage space inside. The side wall of the liquid storage section 704 is provided with a through hole, and the liquid storage space can be connected to the liquid storage tank through the through hole. That is to say, the solid-liquid mixture such as dirt and cleaning liquid of this disclosure can flow to the liquid storage space under the action of gravity or negative pressure adsorption, and be recycled to the recovery tank 400 through the liquid storage space.

[0225] In a preferred embodiment, one end of the scraper 705 is connected to the liquid storage section 704, and both sides of the scraper 705 have through holes, so that the solid-liquid mixture on both sides of the scraper 705 can flow into the liquid storage space.

[0226] Accordingly, one end of the suction head 710 can be inserted into the liquid storage space of the scraping assembly 700, thereby discharging the solid-liquid mixture or the liquid in the solid-liquid mixture into the suction nozzle 640 or the recovery line 401.

[0227] In this disclosure, there is a preset distance between one end of the suction head 710 and the bottom wall of the liquid storage space (i.e., the upper surface of the bottom plate 701), so that the solids in the solid-liquid mixture can be located below the suction head 710. Accordingly, the solids in the solid-liquid mixture will not affect the normal operation of the filter screen 711.

[0228] In this disclosure, the liquid storage section 704 is provided with a step section 707. One end of the suction head 710 can contact the step section 707 and be restricted in position by the step section 707. Thus, the filter screen 711 of this disclosure can also be restricted in position by the step section 707. At this time, by providing the step section 707, the filter screen 711 can be effectively prevented from detaching from the suction head 710.

[0229] Furthermore, the baffle component 706 of this disclosure is not suitable to be set too high. Specifically, when the cleaning head assembly 650 is in the working state, that is, when the cleaning head assembly 650 is in the lowered position, the baffle component 706 is set not to contact the lower surface of the cleaning head assembly 650. At this time, the lower surface of the cleaning head assembly 650 (e.g., the cleaning element 652 of the cleaning head assembly 650) only contacts the scraper 705. Thus, the dirt and cleaning liquid of the cleaning head assembly 650 are scraped off by the scraper 705 alone, and the dirt and cleaning liquid are collected by the scraping component 700. Accordingly, since other components do not interfere with the cleaning head assembly 650, the dirt and cleaning liquid of the cleaning head assembly 650 can be prevented from falling onto the surface to be cleaned.

[0230] In some embodiments, the spray nozzle 682 can be positioned directly above the scraping assembly 700, for example, directly above the scraper 705. On the one hand, since the cleaning head assembly 650 rotates and the cleaning liquid provided by the spray nozzle 682 needs a certain amount of time to wet the cleaning head assembly 650, the scraper 705 will not scrape off the newly added cleaning liquid, but will mainly remove the cleaning liquid that has already been used. On the other hand, after the scraper 705 removes the cleaning liquid that has already been used, the cleaning element 652 of the cleaning head assembly 650 is in a roughly dry state and needs to be replenished with cleaning liquid. At this time, the cleaning element 652 will have a better water absorption capacity, thereby accelerating the wetting of the cleaning element 652 by the cleaning liquid. In addition, since the cleaning head assembly 650, which is in contact with the scraper 705, needs to travel a large circumferential movement distance to make contact with the surface to be cleaned, the cleaning element 652 of the cleaning head assembly 650 can be effectively wetted by the cleaning liquid during this period, thereby improving the cleaning effect of the cleaning head assembly 650 on the surface to be cleaned.

[0231] In this disclosure, at least a portion of the scraping component 700 can be inserted into the base portion 610 of the floor brush component 600 and can be fixed to the base portion 610 of the floor brush component 600.

[0232] Specifically, the bottom wall of the base portion 610 of this disclosure is recessed upward to form a receiving groove, and the upper ends of the first side plate 702, the second side plate 703 and the liquid storage portion 704 of the scraping assembly 700 can be inserted into the receiving groove. Correspondingly, the bottom plate 701 and other components of the scraping assembly 700 can be located outside the receiving groove.

[0233] Figure 26 This is a structural schematic diagram of a floor brush assembly according to one embodiment of the present disclosure from one angle. Figure 27 yes Figure 26 An enlarged structural diagram. Figure 28 This is a structural schematic diagram of a floor brush assembly according to one embodiment of the present disclosure from another angle. Figure 29 yes Figure 28 Enlarged schematic diagram of part C.

[0234] like Figures 26 to 29 As shown, in this disclosure, the receiving groove is formed by a first side wall 612, a second side wall 613, and a rear wall 614. Specifically, the first side wall 612 and the second side wall 613 are disposed opposite to each other, and the rear wall 614 is connected to one end of the first side wall 612 and the second side wall 613 respectively. When the scraping assembly 700 is inserted into the receiving groove, the first side plate 702 can approach and cooperate with the first side wall 612, and correspondingly, the second side wall 613 can approach and cooperate with the second side plate 703, thereby allowing the scraping assembly 700 to be fixed by the base portion 610.

[0235] More preferably, a fixing element 615 is provided on the base portion 610, wherein the fixing element 615 is slidable along the base portion 610 and has an open position and a closed position; wherein, when the fixing element 615 is in the closed position, at least a portion of the fixing element 615 can be located in the receiving groove, for example, one end of the fixing element 615 can pass through the rear wall 614 and be located in the receiving groove; when the fixing element 615 is in the open position, the portion of the fixing element 615 located in the receiving groove will be removed from the receiving groove, thereby allowing the scraping assembly 700 to be removed from the base portion 610.

[0236] On the other hand, a slot 708 is provided on the liquid storage portion 704 of the scraping assembly 700. The slot 708 can cooperate with the fixing element 615 so that when at least a part of the scraping assembly 700 is located in the receiving groove, one end of the fixing element 615 can be inserted into the slot 708, thereby fixing the scraping assembly 700 to the base portion 610 by the fixing element 615.

[0237] In this disclosure, the fixing element 615 can be moved from the closed position to the open position by operating the protrusion on the fixing element 615, and at the same time, the fixing element 615 can be moved from the open position to the closed position by the restoring force of the spring. More preferably, the movement of the fixing element 615 can be guided by a guide structure provided on the base portion 610.

[0238] Furthermore, the upper surface of the end of the fixing element 615 located within the slot 708 is set to a substantially horizontal surface, and correspondingly, the upper surface of the slot 708 is also set to a substantially horizontal surface, so that the fixing element 615 can engage with the slot 708 and define the position of the scraping assembly 700. In addition, the lower surface of the end of the fixing element 615 located within the slot 708 is set to an inclined surface. Accordingly, when the scraping assembly 700 is installed on the base portion 610, it is not necessary to manually operate the fixing element 615. Instead, the fixing element 615 is pushed from the closed position to the open position by the engagement of the scraping assembly 700 with the inclined surface of the fixing element 615, thereby facilitating the installation of the scraping assembly 700. Then, when the scraping assembly 700 is further pushed and installed in the preset position, the fixing element 615 can move from the open position to the closed position under the action of the spring's restoring force. Accordingly, one end of the fixing element 615 can be inserted into the slot 708, thereby realizing the position limitation of the scraping assembly 700.

[0239] In a preferred embodiment, a stop member may be provided on the base portion 610, which can restrict the fixing element 615 to the closed position, thereby preventing the fixing element 615 from separating from the base portion 610.

[0240] like Figure 29 As shown, both the first sidewall 612 and the second sidewall 613 of this disclosure are provided with guide structures 612A. Specifically, taking the first sidewall 612 as an example, the guide structure 612A can be a guide protrusion. Correspondingly, a guide groove 702C is formed on the first side plate 702. Through the cooperation of the guide protrusion and the guide groove, the scraping component 700 can be guided when it is installed on the base portion 610 or when it is removed from the base portion 610, thereby facilitating the installation and removal of the scraping component 700. Preferably, the guide groove 702C is formed on the first portion 702A of the first side plate 702.

[0241] In addition, an elastic fastener 702D is provided on the first side plate 702, and a locking hole 612B is provided on the first side wall 612. When the scraping assembly 700 is fixed on the base portion 610, the elastic fastener 702D can be located in the locking hole 612B. That is to say, the elastic fastener 702D of this disclosure can generate a certain elastic deformation. During the installation of the scraping assembly 700, the elastic fastener 702D is compressed to move towards the interior of the scraping assembly 700; when the scraping assembly 700 is installed in the preset position, the elastic fastener 702D returns to the initial position, so that the elastic fastener 702D can be locked into the locking hole 612B, thereby realizing the auxiliary positioning of the scraping assembly 700. Preferably, the elastic fastener 702D is formed on the first portion 702A of the first side plate 702.

[0242] Overall, the combined action of the elastic fastener 702D and the fixing element 615 enables the scraping assembly 700 to be firmly fixed to the base portion 610.

[0243] Figure 30 This is a structural schematic diagram of a floor brush assembly 600 according to one embodiment of the present disclosure at an angle.

[0244] like Figure 30 As shown, the cover portion 620 of this disclosure has an upper surface; wherein, a cavity portion 621 protruding from the upper surface of the cover portion 620 is provided on the cover portion 620, the cavity portion 621 is used to accommodate the first motor 660; the upper end surface of the cavity portion 621 is equal to or lower than the highest point of the upper surface of the cover portion 620.

[0245] In other words, the highest point of the upper surface of the remaining portion of the cover portion 620 after removing the chamber portion 621 is formed as the highest point of the entire floor brush assembly 600. At this time, the upper surface of the chamber portion 621 can be planar. When the surface cleaning device is placed on a roughly horizontal surface to be cleaned, the upper surface of the chamber portion 621 is also roughly horizontal, i.e., located within a certain horizontal plane. Correspondingly, the upper surface of the chamber portion 621 is not formed as the highest point of the entire floor brush assembly 600, or the highest point of the upper surface of the chamber portion 621 and the highest point of the upper surface of the remaining portion of the cover portion 620 after removing the cover portion 620 together form the highest point of the entire floor brush assembly 600. In other words, there can be a height difference M1 between the highest point of the upper surface of the remaining portion of the cover portion 620 after removing the chamber portion 621 and the upper surface of the chamber portion 621, and this height difference M1 is greater than or equal to 0.

[0246] In addition, when the surface cleaning device is in a flat position, the highest point of the upper surface of the cover portion 620 of the floor brush assembly 600 (that is, the highest point of the upper surface of the remaining part of the cover portion 620 after removing the chamber portion 621) becomes the highest point of the entire surface cleaning device.

[0247] More preferably, the connecting portion 500 is pivotally connected to the floor brush assembly 600. Specifically, the connecting portion 500 is rotatably connected to the housing assembly of the floor brush assembly 600, and the pivot axis between the connecting portion 500 and the housing assembly of the floor brush assembly 600 is a horizontal straight line, which is perpendicular to the front-back direction of the floor brush assembly 600.

[0248] In a preferred embodiment, the upper surface of the chamber portion 621 is partially higher than the upper surface of the cover portion 620, which facilitates the positional arrangement of the first motor 660 and the valve device 681. Specifically, the components such as the first motor 660 and the valve device 681 of this disclosure can be vertically arranged, thereby making the positional distribution of the components of the floor brush assembly 600 of this disclosure more reasonable.

[0249] In other words, the chamber portion 621 of this disclosure can not only accommodate a part of the first motor 660, but also a part of the valve device 681, thereby enabling the valve device 681 to be arranged substantially vertically.

[0250] Figure 31 This is a structural schematic diagram of a floor brush assembly 600 according to one embodiment of the present disclosure from another angle.

[0251] like Figure 31As shown, the cleaning head assembly 650 of this disclosure can be configured such that, in the lowered position, the inner side of the portion of the cleaning head assembly 650 that contacts the surface to be cleaned is closer to the interior of the base portion 610 than the outer side of the contact surface between the agitator 630 and the surface to be cleaned. Therefore, when the surface cleaning device of this disclosure is cleaning the surface to be cleaned, and the floor brush assembly 600 is controlled to move forward, no areas will be missed within the cleaning width of the floor brush assembly 600.

[0252] In a preferred embodiment, the agitator 630 may include a cleaning component, which may be made of a material such as velvet and formed in a cylindrical or track-like shape. Thus, along the axial direction of the cleaning component, the cleaning component includes a first end and a second end. Accordingly, the first end of the cleaning component is adjacent to one sidewall of the floor brush assembly 600, and the second end of the cleaning component is adjacent to another sidewall of the floor brush assembly 600. Moreover, there is a first edge distance D1 between the first end of the cleaning component and one sidewall of the floor brush assembly 600.

[0253] Furthermore, when the cleaning head assembly 650 is in the lowered position, at least a portion of the cleaning element 652 contacts the surface to be cleaned, and a working surface is formed by the contact portion between the cleaning element 652 and the surface to be cleaned; at least a portion of the working surface is located within the horizontal projection of the housing assembly; wherein, the portion of the working surface located within the horizontal projection of the housing assembly has a second edge distance D2 between it and one sidewall of the floor brush assembly 600; wherein, the second edge distance D2 is greater than the first edge distance D1; thereby, there is an overlapping cleaning area between the cleaning head assembly 650 and the agitator 630, effectively preventing the occurrence of missed cleaning areas.

[0254] In a preferred embodiment, the cleaning element 652 is annular, and the inner circle of the annular cleaning element 652 forms a second edge distance D2 with a sidewall of the floor brush assembly 600.

[0255] According to another aspect of this disclosure, a control method for a surface cleaning device is also provided, wherein the surface cleaning device can be the surface cleaning device described in the above embodiments.

[0256] The control method for the surface cleaning device may include: obtaining usage data generated by the first sensor assembly 690 indicating that the surface cleaning device is approaching a wall; and turning on and off the power supply to the first motor 660 according to the usage data generated by the first sensor assembly 690; increasing and decreasing the output power of the first motor 660; and / or increasing and decreasing the rotational speed of the first motor 660.

[0257] In addition, the control method of the surface cleaning device disclosed herein may also include: turning on and off the power supply to the electric suction source based on the usage data generated by the first sensor assembly 690; and / or increasing and decreasing the suction power of the electric suction source.

[0258] In a preferred embodiment, the control method of the surface cleaning device disclosed herein may further include: obtaining the amount of cleaning liquid in the supply tank 300; obtaining the amount of cleaning liquid used during the operating cycle of the first motor 660 based on the change in the amount of cleaning liquid in the supply tank 300; reducing the power of the liquid distributor when the amount of cleaning liquid used during each operating cycle of the first motor 660 is too high; and / or increasing the power of the liquid distributor when the amount of cleaning liquid used during each operating cycle of the first motor 660 is too low.

[0259] Additionally, when the amount of cleaning liquid used is excessive during each operating cycle of the first motor 660, the solenoid valve is controlled and the supply of cleaning liquid to the cleaning head assembly 650 is stopped; and / or, when the amount of cleaning liquid used is insufficient during each operating cycle of the first motor 660, the solenoid valve is controlled and the supply of cleaning liquid to the cleaning head assembly 650 is turned on.

[0260] In some embodiments, usage data of the first motor 660 is acquired, and a notification requiring maintenance of the cleaning head assembly 650 is obtained based on the usage data of the first motor 660. Specifically, the usage data of the first motor 660 includes the current flowing through the first motor 660; the notification requiring maintenance of the cleaning head assembly 650 includes one of the following: the cleaning head assembly 650 is tangled; the cleaning head assembly 650 is stuck in rotation; the cleaning head assembly 650 is stuck in movement. That is, when the current flowing through the first motor 660 is too high, one possible reason is that the first motor 660 has stalled. Therefore, it can be determined that the cleaning head assembly 650 is tangled, the cleaning head assembly 650 is stuck in rotation, or the cleaning head assembly 650 is stuck in movement. Based on this notification, the user can perform maintenance on the cleaning head assembly 650.

[0261] In this disclosure, a notification that cleaning element 652 needs maintenance can also be obtained based on the usage data of the first motor 660. Specifically, the usage data of the first motor 660 includes the operating time of the first motor 660; the need for cleaning element 652 maintenance includes one of the following: the cleaning element 652 needs to be cleaned, or the cleaning element 652 needs to be replaced.

[0262] In one specific implementation, the power supply to the first motor 660 is turned on and off based on the usage data generated by the first sensor component 690. This includes: obtaining a first distance between the floor brush component 600 and the wall based on the usage data generated by the first sensor component 690; when the first distance is greater than a preset distance threshold, keeping the cleaning head component 650 in an elevated position, or controlling the first motor 660 to move and causing the cleaning head component 650 to rise; when the first distance is less than or equal to the preset distance threshold, keeping the cleaning head component 650 in a lowered position, or controlling the first motor 660 to move and causing the cleaning head component 650 to fall. Thus, based on the usage data generated by the first sensor component 690, when it is determined that the surface cleaning device is against the wall, the cleaning head component 650 is controlled to fall and perform floor cleaning; on the other hand, when it is determined that the surface cleaning device is not against the wall, the cleaning head component 650 is controlled to rise.

[0263] According to another aspect of this disclosure, a control method for another surface cleaning device is provided, which can be the surface cleaning device described above. The surface cleaning device includes a normal cleaning mode and an edge-to-edge cleaning mode. In the normal cleaning mode, the cleaning head assembly 650 is in a raised position and does not contact the surface to be cleaned; correspondingly, the first motor 660 is also in a non-operating state. In the edge-to-edge cleaning mode, the cleaning head assembly 650 is in a lowered position and contacts the surface to be cleaned, performing cleaning on the surface.

[0264] The control method of the surface cleaning device includes: obtaining a power-on signal for the surface cleaning device and putting the surface cleaning device into a working state according to the power-on signal; selectively applying cleaning liquid to the cleaning head assembly 650 for a selected period of time to wet the contact surface between the cleaning head assembly 650 and the surface to be cleaned; and stopping the application of cleaning liquid to the cleaning head assembly 650 after a selected period of time, wherein either or both of selectively applying the cleaning liquid or stopping the application of the cleaning liquid are performed after the electric suction source of the surface cleaning device is started.

[0265] In other words, in the control method of the surface cleaning equipment disclosed herein, when the surface cleaning equipment is turned on, cleaning liquid is provided to the cleaning head assembly 650, thereby making the cleaning head assembly 650 fully wetted. Accordingly, when the surface cleaning equipment is close to the wall and in the edge cleaning mode, the wet cleaning head assembly 650 can immediately clean the wall edge, thereby improving the cleaning efficiency of the surface cleaning equipment.

[0266] More specifically, the selective application or cessation of the application of cleaning liquid, or both, is automatically controlled by the controller of the surface cleaning equipment, thereby giving the surface cleaning equipment of this disclosure better automatic control capabilities and improving the user experience.

[0267] In this disclosure, the surface cleaning device is determined to be in edge cleaning mode based on the difference between a first distance and a preset distance threshold. Specifically, when the first distance is less than or equal to the preset distance threshold, it is determined that the surface cleaning device is in edge cleaning mode. In this edge cleaning mode, the working time of the edge cleaning mode is recorded, i.e., the duration of the edge cleaning mode. Further, when the duration is greater than or equal to the preset time threshold, the application of cleaning liquid to the cleaning head assembly 650 is not stopped after the selected time is reached. Thus, when the surface cleaning device is in edge cleaning mode from the moment it is turned on, it can remain in edge cleaning mode, and the cleaning head assembly 650 is applied with cleaning liquid until the edge cleaning mode ends.

[0268] In this disclosure, the selective application or cessation of cleaning liquid application is controlled by a user-interactive button (trigger). Thus, the user can control the application or cessation of cleaning liquid application according to the degree of dirt on the surface to be cleaned, thereby avoiding waste of cleaning liquid and increasing the service life of the cleaning liquid in the surface cleaning equipment.

[0269] In some embodiments, the cleaning head assembly 650 is rotated while the cleaning liquid is applied to it, thereby enabling uniform wetting of the entire cleaning head assembly 650. Accordingly, when the cleaning head assembly 650 contacts and cleans the surface to be cleaned, it enables uniform wet cleaning of the surface to be cleaned, preventing water stains from appearing on some parts of the surface to be cleaned while other parts of the surface to be cleaned are not provided with cleaning liquid.

[0270] When cleaning fluid is applied to the cleaning head assembly 650, the user is notified that cleaning fluid has been applied to the cleaning head assembly 650. In this way, the user can accurately know the status of the cleaning head assembly 650 and thus avoid issuing incorrect commands to the surface cleaning equipment.

[0271] In a preferred embodiment, a selected time period is greater than or equal to 5 seconds and less than or equal to 10 seconds; on the one hand, within this time period, the cleaning head assembly 650 can be sufficiently wetted; on the other hand, this time will not excessively affect the user's use of the surface cleaning device.

[0272] In this disclosure, when the application of cleaning liquid to the cleaning head assembly 650 is selectively stopped, the application of cleaning liquid to the agitator 630 is continued, thereby enabling the agitator 630 to be used to clean the surface to be cleaned. At this time, the surface cleaning device is not in the edge cleaning mode, but in the normal cleaning mode.

[0273] In a preferred embodiment, when cleaning fluid is selectively applied, the cleaning head assembly 650 is in the raised position. At this time, the on / off state of the solenoid valve can be controlled to supply cleaning fluid to the cleaning head assembly 650. As can be seen from the above analysis, when the cleaning head assembly 650 is in the raised position, the first motor 660 can drive the cleaning head assembly 650 to rotate through the actuation component without causing the cleaning head assembly 650 to descend.

[0274] In another embodiment, when selectively applying cleaning liquid, the cleaning head assembly 650 is in the lowered position. After the application of cleaning liquid is stopped, the cleaning head assembly 650 moves from the lowered position to the raised position. At this time, cleaning liquid can be supplied to the cleaning head assembly 650 through the valve device 681. The raising and lowering of the cleaning head assembly 650 can be accompanied by the opening or closing of the valve device 681, so that the cleaning head assembly 650 is effectively wetted before moving to the raised position, and in the raised position, wait for the surface cleaning equipment to enter the edge cleaning mode.

[0275] Figure 32 This is a schematic diagram of the structure of a base station according to one embodiment of the present disclosure. Figure 33 This is a structural schematic diagram of a base station according to one embodiment of the present disclosure from another angle.

[0276] like Figure 32 and Figure 33 As shown, the base station disclosed herein includes structures such as a housing assembly 910, a duct assembly 920, and an airflow generator 930.

[0277] The housing assembly 910 disclosed herein includes an air inlet 913, a first air outlet 914, and a second air outlet 915. Specifically, the housing assembly 910 disclosed herein may include a base component 911 and a tray 912. The base component 911 is configured to be placed on the ground or other locations. The tray 912 is disposed on the base component 911, and a receiving space is formed between the tray 912 and the base component 911. Components such as an air duct assembly 920 and an airflow generator 930 may be disposed within this receiving space.

[0278] Specifically, the air inlet 913 of this disclosure can be formed on the base member 911 and located on the bottom wall of the base member 911; moreover, the first air outlet 914 and the second air outlet 915 of this disclosure are both formed on the tray 912.

[0279] In this disclosure, tray 912 is configured such that at least a portion of tray 912 is located below the surface cleaning equipment when the surface cleaning equipment is docked at base station 900.

[0280] The upper surface of the tray 912 may have a positioning groove 912A, 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 912A.

[0281] Furthermore, to prevent the roller from moving out of the positioning groove, a limiting part 912B can be provided near the positioning groove 912A. The limiting part 912B can stop the movement of the roller so that the surface cleaning device can be positioned more stably.

[0282] Preferably, the positioning groove 912A is formed as a first arc-shaped groove, and the limiting part 912B 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.

[0283] Furthermore, a first cleaning groove 912C is formed on the upper surface of the tray 912. The shape of the first cleaning groove 912C can be adapted to the shape of the agitator 630 of the surface cleaning equipment. When the surface cleaning equipment is docked at the base station, at least a portion of the agitator 630 of the surface cleaning equipment can be disposed in the first cleaning groove 912C. The first air outlet 914 is located near the first cleaning groove 912C. Thus, the gas (e.g., hot air) discharged through the first air outlet 914 is directed toward the first cleaning groove 912C and can dry the agitator 630.

[0284] In this disclosure, a second cleaning groove 912D is also formed on the upper surface of the tray 912. The shape of the second cleaning groove 912D can be adapted to the shape of the cleaning head assembly 650 of the surface cleaning device. When the surface cleaning device is docked at the base station, at least a portion of the cleaning head assembly 650 of the surface cleaning device can be disposed in the second cleaning groove 912D. The second air outlet 915 is located near the second cleaning groove 912D, so that the gas (e.g., hot air) discharged through the second air outlet 915 is directed toward the second cleaning groove 912D and can dry the cleaning head assembly 650.

[0285] In a preferred embodiment, the tray 912 includes an upper surface, wherein a first cleaning groove 912C can be formed by recessing downward from the upper surface, and a second cleaning groove 912D can be formed by recessing downward from the upper surface, with an enclosing structure 912E provided around the recessed portion. The enclosing structure 912E forms at least a portion of the sidewall of the second cleaning groove 912D. Furthermore, the bottom wall of the recessed portion is formed as the bottom wall of the second cleaning groove 912D, which is lower than the upper surface of the tray 912.

[0286] In this disclosure, at least a portion of the upper end of the enclosure structure 912E is provided with a closed structure 912G, which can be made of materials such as rubber or silicone. Thus, when the surface cleaning device is parked at the base station, the closed structure 912G can be in sealed contact with the lower surface of the outer shell assembly of the floor brush assembly of the surface cleaning device, thereby reducing the heat loss of the drying cleaning head assembly 650 and accelerating the drying speed.

[0287] In a preferred embodiment, the base station 900 includes a lateral direction, which is the lateral direction of the surface cleaning device when it is docked on the tray; more specifically, the lateral direction of the base station 900 is the axial direction of the agitator 630 of the surface cleaning device when it is docked on the tray, defined by the structure of the base station 900, which is the length direction (axial direction) of the first cleaning tank 912C. Accordingly, the lateral direction of the tray 912 is the same as the lateral direction of the base station 900.

[0288] Accordingly, in the lateral direction, base station 900 may include a left end and a right end, the left end and the right end of base station 900 being... Figure 32 The left and right ends of the base station 900 shown.

[0289] In this disclosure, the bottom wall of the second cleaning tank 912D is inclined, and along the lateral direction of the tray 912, from the center of the tray 912 to the edge of the tray 912, the bottom wall is inclined downward. Thus, when the surface cleaning equipment is parked at the base station, the bottom wall of the second cleaning tank 912D is approximately parallel to the lower surface of the cleaning head assembly 650.

[0290] At least a portion of the enclosure structure 912E is disposed near the lateral end of the tray 912, specifically, at least a portion of the enclosure structure 912E is disposed near the right end of the tray 912.

[0291] The second air outlet 915 is formed in the enclosure structure 912E, and the air outlet direction of the second air outlet 915 is approximately horizontal.

[0292] In a preferred embodiment, a scrubbing element 912F is further provided on the tray 912. At least a portion of the scrubbing element 912F is located in the second cleaning groove 912D, and the scrubbing element 912F is used to interfere with the cleaning element of the cleaning head assembly to clean the cleaning element. More preferably, the upper surface of the scrubbing element 912F is provided with an inclined plane. When the surface cleaning device is docked at the base station, the upper surface of the scrubbing element 912F can be approximately parallel to the lower surface of the cleaning head assembly 650. Thus, the scrubbing element 912F can have approximately the same interference depth with the cleaning head assembly 650, and the entire surface of the cleaning head assembly 650 is uniformly cleaned by the scrubbing element 912F.

[0293] The air duct assembly 920 is located inside the housing assembly 910, and the airflow generator 930 is used to cause gas to flow within the air duct assembly 920; thereby, gas flow from the air inlet 913 to the first air outlet 914 and from the air inlet 913 to the second air outlet 915 are realized via the air duct assembly 920.

[0294] In other words, the airflow generator 930 of this disclosure can be disposed inside the air duct assembly 920. Preferably, the airflow generator 930 is located at the inlet of the air duct assembly 920 so that when the airflow generator 930 is activated, the airflow generator 930 can force the gas flow in the air duct assembly 920 and allow the gas to be discharged from the first air outlet 914 and the second air outlet 915.

[0295] Figures 34 to 36 This is a structural schematic diagram of a base station air duct assembly at different angles according to one embodiment of the present disclosure. Figure 37 This is a structural schematic diagram of a first air duct component according to an embodiment of the present disclosure. Figure 38 This is a structural schematic diagram of a second air duct component according to one embodiment of the present disclosure.

[0296] like Figures 34 to 38 As shown, the air duct assembly 920 of this disclosure includes: a first air duct component 921 and a second air duct component 922; the first air duct component 921 and the second air duct component 922 are connected to each other to form an inlet and an outlet; that is, the air duct assembly 920 of this disclosure is not formed as an integral structure, but is formed by the first air duct component 921 and the second air duct component 922 being fastened together.

[0297] Gas entering the housing assembly 910 through the air inlet 913 can enter the air duct assembly 920 through the inlet; that is, the gas can be drawn into the air duct assembly 920 by the suction action of the airflow generator 930.

[0298] In one embodiment, the air duct assembly 920 of this disclosure can be divided into a first air duct 923 and a second air duct 924 according to the location of the exhaust gas; wherein, the first air duct 923 is located between the inlet and outlet of the air duct assembly 920 and is in fluid communication with the first air outlet 914; the second air duct 924 is located between the inlet and outlet of the air duct assembly 920 and is in fluid communication with the second air outlet 915.

[0299] In this disclosure, the inlet of the air duct assembly 920 can be set to at least one, and correspondingly, the outlet can also be set to at least one; for example, the first air duct 923 and the second air duct 924 are both formed as independent air ducts, in which case the inlet and outlet of the air duct assembly 920 are both set to two.

[0300] In a specific embodiment of this disclosure, the air duct assembly 920 may have one inlet and two outlets, such that the first air duct 923 and the second air duct 924 share the same inlet of the air duct assembly 920.

[0301] like Figure 37 and Figure 38 As shown, the second air duct 924 is diverted from the first air duct 923; that is, at this time the air duct assembly 920 only forms one inlet and one outlet, and the first air duct 923 can connect the inlet and outlet. The second air duct 924 can be formed as a bypass of the first air duct 923. Thus, the base station 900 of this disclosure can simultaneously heat and dry the stirrer 630 and the cleaning head assembly 650, thereby speeding up the drying time.

[0302] Specifically, the second air duct 924 includes an air inlet, which is formed on the first air duct component 921 and / or the second air duct component 922. In a preferred embodiment, part of the air inlet is formed on the sidewall of the first air duct component 921 and part is formed on the sidewall of the second air duct component 922, thereby forming the air inlet of the second air duct 924 of this disclosure together through the first air duct component 921 and the second air duct component 922. Accordingly, gas can enter the second air duct 924 through the air inlet and flow to the second air outlet through the second air duct 924.

[0303] In a preferred embodiment, the inlet is formed with a generally circular cross-section and the outlet is formed with a generally rectangular cross-section, i.e., the outlet is flat, so that the width of the outlet is greater than the width of the inlet. This arrangement facilitates the flow of gas within the duct assembly 920.

[0304] The first air duct 923 of this disclosure may house a first heating device 940, and the first air duct 923 is divided into an upstream air duct and a downstream air duct according to the position of the first heating device 940. Specifically, the first air duct 923 includes an upstream air duct and a downstream air duct that are connected together. The upstream air duct is the air duct located upstream of the first heating device 940 along the gas flow direction within the first air duct 923, and correspondingly, the downstream air duct is the air duct located downstream of the first heating device 940 along the gas flow direction within the first air duct 923. The first heating device 940 is then positioned between the upstream air duct and the downstream air duct.

[0305] In a preferred embodiment, the air duct assembly 920 includes a first airflow guiding structure 925 disposed within the first air duct 923 for guiding airflow within the first air duct 923 when the airflow generator 930 is activated.

[0306] Specifically, the first flow guiding structure 925 includes at least one flow guiding vane located in the upstream air duct, the flow guiding vane extending along the airflow direction; and the first flow guiding structure 925 includes multiple flow guiding vanes located in the downstream air duct, the flow guiding vanes extending along the airflow direction.

[0307] In this disclosure, the air duct assembly 920 further includes a second airflow guiding structure 926, which is disposed within the first air duct 923 and is used to guide at least a portion of the airflow within the first air duct 923 to the second air duct 924 when the airflow generator 930 is activated.

[0308] Furthermore, the first flow guiding structure 925 and the second flow guiding structure 926 can be disposed on the inner surfaces of the first air duct member 921 and / or the second air duct member 922; in a specific embodiment, such as Figure 38 As shown, the first airflow guiding structure 925 and the second airflow guiding structure 926 are both disposed on the second air duct component 922; more preferably, in actual use, the first air duct component 921 is located below the second air duct component 922.

[0309] See again Figure 38 In this disclosure, the second flow guiding structure 926 includes at least one flow guiding component located in the downstream air duct, and the flow guiding component is formed in an arc shape. For example, one end of the second flow guiding structure 926 is disposed close to the first heating device 940, and the other end of the second flow guiding structure 926 terminates at the air inlet of the second air duct 924. The surface of the second flow guiding structure 926 that guides the gas is a concave arc surface, thereby allowing the gas to flow to the air inlet of the second air duct 924 via the path restricted by the concave arc surface.

[0310] At this time, one end of the first heating device 940 is positioned close to the air inlet of the second air duct 924, so that the heated hot air can be supplied to the second air outlet 915 as quickly as possible.

[0311] In one embodiment of this disclosure, the base station further includes a deflector 950, which is connected to the exhaust port of the second air duct 924 and is used to change the flow direction of the gas discharged from the second air duct 924. Thus, the gas discharged from the second air duct 924 flows to the second air outlet 915 after passing through the deflector 950. Preferably, the size of the exhaust port of the second air duct 924 is larger than the size of the air inlet of the second air duct 924.

[0312] In this disclosure, such as Figure 34 As shown, the base station of this disclosure also includes a second heating device 960, wherein the second heating device 960 is used to heat the bottom wall of the first cleaning tank 912C; or, the heating surface of the second heating device 960 is formed as part of the bottom wall of the first cleaning tank 912C, so that the cleaning liquid in the first cleaning tank 912C can be heated by the second heating device 960, and the stirrer 630 can be cleaned by the hot cleaning liquid.

[0313] Specifically, the second heating device 960 of this disclosure may be located outside the air duct assembly 920, for example, above the air duct assembly 920 and below the tray 912.

[0314] The base station disclosed herein also includes a charging unit 970, at least a portion of which is located above the tray 912, wherein the charging unit 970 is configured to contact the charging contacts of the surface cleaning device and charge the battery of the surface cleaning device.

Claims

1. A base station, characterized in that, include: A housing assembly, the housing assembly including an air inlet, a first air outlet, and a second air outlet; A duct assembly, located inside the housing assembly, enables gas flow from the air inlet to the first air outlet and from the air inlet to the second air outlet. as well as An airflow generator for causing gas to flow within a duct assembly; The air duct assembly includes: A first air duct component and a second air duct component are connected to each other to form an inlet and an outlet; gas entering the housing assembly through the air inlet can enter the air duct component through the inlet. A first air duct, located between the inlet and outlet of the air duct assembly and in fluid communication with a first air outlet; and The second air duct is in fluid communication with the second air outlet to receive gas entering through the inlet of the air duct assembly and to supply the gas to the second air outlet.

2. The base station according to claim 1, characterized in that, The first and second air ducts share the same inlet to the air duct assembly.

3. The base station according to claim 1, characterized in that, The second air duct is a branch of the first air duct.

4. The base station according to claim 3, characterized in that, The second air duct includes an air inlet, which is formed on the first air duct component and / or the second air duct component.

5. The base station according to claim 1, characterized in that, The first air duct includes an upstream air duct and a downstream air duct that are connected together.

6. The base station according to claim 5, characterized in that, The air duct assembly includes: A first airflow guiding structure is disposed within the first air duct and is used to guide the airflow within the first air duct when the airflow generator is activated.

7. The base station according to claim 6, characterized in that, The first flow guiding structure includes at least one flow guiding plate located in the upstream air duct, the flow guiding plate being arranged to extend along the airflow direction.

8. The base station according to any one of claims 1-7, characterized in that, The first flow guiding structure includes a plurality of flow guiding vanes located in the downstream air duct, the flow guiding vanes being arranged to extend along the airflow direction; Optionally, the air duct assembly further includes: A second flow guiding structure is disposed within the first air duct and is used to guide at least a portion of the airflow in the first air duct to the second air duct when the airflow generator is activated. Optionally, the second flow guiding structure includes at least one flow guiding component located in the downstream air duct, and the flow guiding component is formed in an arc shape; Optionally, a first heating device is provided between the upstream air duct and the downstream air duct; Optionally, one end of the first heating device is close to the air inlet of the second air duct; Optionally, it also includes: A steering mechanism, connected to the exhaust port of the second air duct, is used to change the flow direction of the gas discharged from the second air duct.

9. A surface cleaning system, characterized in that, The base station includes any one of claims 1-8.

10. The surface cleaning system according to claim 9, characterized in that, It also includes a surface cleaning device, which includes a floor brush assembly, which includes a stirrer and a cleaning head assembly; wherein, when the surface cleaning device is parked at a base station, the first air outlet is used to process the stirrer, and the second air outlet is used to process the cleaning head assembly.

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