Cleaning equipment, base station and cleaning system

Abstract

The utility model provides cleaning equipment, a base station and a cleaning system, and relates to the technical field of cleaning equipment. The cleaning equipment comprises a machine shell, a dust removal device and a cleaning device, the dust collecting cup is arranged on the machine shell and provided with a dust inlet and a dust outlet, and the dust outlet is communicated with the dust outlet; the dust collection air duct is arranged in the machine shell and communicates with the dust inlet; the dust collection air duct is arranged in the machine shell, is separated from the dust collection air duct and is communicated with the dust discharge port and the dust outlet; the motor is arranged in the machine shell and located above the dust collecting cup. The air duct conversion structure is arranged between the air outlet of the dust collection cup and the air inlet of the motor and is switched between a first state and a second state; in the first state, the air duct conversion structure communicates with the air outlet of the dust collection cup and the air inlet of the motor; in the second state, the air duct conversion structure communicates with the dust collection air duct and the air inlet of the motor. The cleaning system does not need to add components in the base station, the size of the base station can be reduced, the appearance effect of the cleaning system is improved, and the cost of the cleaning system is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a cleaning equipment, a base station and a cleaning system. Background Art

[0002] With the development of science and technology and the improvement of people's quality of life, cleaning equipment such as vacuum cleaners, sweepers, and floor scrubbers are increasingly used in people's lives.

[0003] The existing automatic dust collection vacuum cleaner sets need to integrate a dust collection motor inside the body to drive the vacuum cleaner to collect dust. It is also necessary to build a dust collection motor into the base station and design a dust collection air duct inside the base station to cooperate with the vacuum cleaner to realize the automatic dust collection function of the vacuum cleaner. In addition, it is also necessary to set up a power supply and management system, a heat dissipation system, a circuit control, a noise control system, a vibration control system, etc. inside the base station to meet the supporting needs of the automatic dust collection function of the base station.

[0004] However, due to the large number of additional components in the base station, the vacuum cleaner will have problems such as high cost, large space occupation and unsightly appearance. Utility Model Content

[0005] The present application provides a cleaning device, a base station and a cleaning system. A dust collection duct and an air duct conversion structure are added to the cleaning device. Even if there are no other motors and related components in the base station, the motor in the cleaning device can be used to realize the automatic dust collection function, which can simplify the structure of the base station, reduce the volume and height of the base station, improve the appearance of the cleaning system, and reduce the cost of the cleaning system.

[0006] A first aspect of the present application provides a cleaning device that can work in conjunction with a base station, the cleaning device comprising:

[0007] The housing has a dust outlet on one side facing the base station;

[0008] The dust collecting cup is arranged on the housing, and the dust collecting cup is provided with a dust inlet and a dust outlet, and the dust outlet is connected with the dust outlet;

[0009] The dust suction air duct is arranged in the casing and is connected with the dust inlet;

[0010] The dust collecting air duct is arranged in the casing and is separated from the dust suction air duct, and the dust collecting air duct is connected with the dust exhaust port and the dust outlet port;

[0011] The motor is arranged in the casing and above the dust cup;

[0012] The air duct conversion structure is arranged between the air outlet of the dust cup and the air inlet of the motor, and is configured to switch between a first state and a second state; when in the first state, the air duct conversion structure connects the air outlet of the dust cup and the air inlet of the motor; when in the second state, the air duct conversion structure connects the dust collecting air duct and the air inlet of the motor. At this time, the motor makes the airflow entering from the dust suction port of the floor brush flow along the dust collecting air duct, and makes the dust in the dust cup enter the base station through the dust exhaust port and the dust outlet with the airflow.

[0013] The cleaning device provided by the present application has a dust collecting cup, a dust suction duct and a motor arranged in a casing. The dust suction duct is connected to the dust inlet of the dust collecting cup, and the motor is arranged above the dust collecting cup. On this basis, a dust collecting duct and a duct conversion structure are also arranged in the casing. The dust collecting duct is separated from the dust suction duct and is connected to the dust discharge port of the dust collecting cup and the dust outlet on the casing. The duct conversion structure is arranged between the air outlet of the dust collecting cup and the air inlet of the motor. When the cleaning device is performing cleaning work, the duct conversion structure is in a first state, connecting the air outlet of the dust collecting cup with the air inlet of the motor. Under the negative pressure of the motor, the airflow enters the dust collecting cup from the dust suction duct and flows out from the air outlet of the dust collecting cup, so as to realize the dust suction function of the cleaning device. When the cleaning device cooperates with the base station, the air duct conversion structure is in the second state, connecting the dust collection duct and the air inlet of the motor. Under the negative pressure of the motor, the airflow entering from the suction port of the floor brush flows along the dust collection duct, and the dust in the dust cup enters the base station through the dust discharge port and the dust outlet in turn, so as to realize the dust collection function of the base station. With such a configuration, even if the base station does not add a motor and other components, the motor of the cleaning device itself can be used to realize the dust collection and dust collection functions, which can reduce the size of the base station, improve the appearance of the cleaning system, and reduce the cost of the cleaning system.

[0014] After the cleaning device described in this patent is combined with the dust collection base station, the dust collection operation begins, and the airflow enters from the dust suction port of the floor brush and flows along the dust collection air duct, and the dust in the dust cup enters the base station through the dust discharge port and the dust outlet along with the airflow. This solution can clean the floor brush, the channel between the floor brush and the dust cup, and the dust in the dust cup at the same time, reducing the chance of dust and debris accumulating in the channel between the floor brush and the dust cup and in the floor brush inlet, reducing the risk of wear and blockage of internal components, and thus extending the service life of the equipment.

[0015] This patented solution can also collect and extract allergens (such as dust mites and pet hair, etc.) that fall below when the cleaning device is combined with the base station, preventing allergens from remaining on the brush roller of the floor brush and multiplying in large numbers, thereby reducing allergen pollution and improving indoor air quality, especially for users with allergies. It can also collect and extract residual dust remaining on the roller brush, which helps to make up for the defect of residual dust agglomerating on the roller brush after combining with water vapor in the air, so that when the cleaning device is used again in the future, the roller brush is clean, low-pollution or even pollution-free.

[0016] In a possible implementation, the air duct conversion structure includes a three-way valve and a drive assembly, the three-way valve includes a valve housing and a valve core, the valve core is at least partially disposed in the valve housing, and the drive assembly drives the valve core to move;

[0017] Among them, the valve housing includes a first inlet, a second inlet and an outlet, the first inlet is connected to the dust cup, the second inlet is connected to the dust collecting air duct, and the outlet is connected to the motor; when the air duct conversion structure is in the first state, the driving component drives the valve core to block the second inlet; when the air duct conversion structure is in the second state, the driving component drives the valve core to block the first inlet.

[0018] By connecting the three-way valve between the air outlet of the dust cup and the air inlet of the motor, and arranging a driving component in the casing, the driving component cooperates with the trigger part of the base station to drive the valve core of the three-way valve to move, so that the air duct is switched. When the air duct conversion structure is in the first state, the driving component drives the valve core to block the second inlet of the valve housing, so that the first inlet of the valve housing is connected to the outlet of the valve housing, so as to connect the air outlet of the dust cup and the air inlet of the motor, so that the negative pressure generated by the motor acts on the dust collection air duct, so that the cleaning device performs cleaning work. When the air duct conversion structure is in the second state, the driving component drives the valve core to block the first inlet of the valve housing, so that the second inlet of the valve housing is connected to the outlet of the valve housing, so as to connect the dust collection air duct and the air inlet of the motor, so that the negative pressure generated by the motor acts on the dust collection air duct, so that the cleaning system performs dust collection work.

[0019] In a possible implementation, the drive assembly includes a drive rod, which is rotatably connected to the valve core, and the drive rod is used to be pushed by the base station to move, thereby pushing the valve core to rotate, so that the air duct conversion structure switches from the first state to the second state.

[0020] By setting a driving rod and a valve core to be rotatably connected, when the cleaning device is combined with the base station, the driving rod is pushed by the trigger part on the base station to drive the valve core to move, so that the cleaning device switches between the dust suction duct and the dust collection duct. When the cleaning device is performing cleaning work, the driving rod is not subjected to external force, and the driving rod can make the valve core block the second inlet of the valve housing, so that the air duct conversion structure is in the first state, and the dust suction action of the cleaning device is realized. When the cleaning device cooperates with the base station, the driving rod is pushed by the trigger part of the base station and moves, driving the valve core to move to block the first inlet of the valve housing, so that the air duct conversion structure switches to the second state, so as to realize the dust collection action of the cleaning system.

[0021] In a possible implementation manner, the top end of the driving rod is rotatably connected to the valve core, and the bottom end of the driving rod has a pushing portion, which extends out of the housing and is used to be pushed by the base station.

[0022] By rotatably connecting the top of the driving rod with the valve core, compared with the traditional method of adding an axial hole structure on the side of the rod-shaped structure to achieve a rotatable connection between components, setting the connection point of the rotation structure at the top of the driving rod can significantly reduce the lateral shear force on the driving rod, greatly improve the strength of the rotation structure, and do not significantly increase the vertical structure of the driving rod, so that the vertical and lateral space occupied by the driving rod and the valve core after the combination is small, which is beneficial to the space layout in the housing. A push-butt portion extending out of the housing is provided at the bottom end of the driving rod, and the push-butt portion is used to abut against the trigger portion of the base station, so that the base station pushes the driving rod to move.

[0023] In a possible implementation, the driving assembly further includes a reset member connected to the driving rod, and the reset member is used to reset the driving rod so that the air duct conversion structure switches from the second state to the first state.

[0024] By arranging a reset member connected to the driving rod, the reset force provided by the reset member can drive the driving rod to reset. When the driving rod is not acted upon by an external force of the triggering part of the base station, the reset force provided by the reset member can make the driving rod return to and remain in the initial position, so that the dust suction air duct of the cleaning device is connected to the motor, and ensure that the air duct conversion structure can be stably and reliably in the first state.

[0025] In a possible implementation, the driving rod includes a push rod and a shift rod, the shift rod is connected to the bottom of the push rod, the push rod is rotatably connected to the valve core, and the shift rod is used to be pushed by the base station;

[0026] The reset member is a first elastic member sleeved on the outside of the push rod, and the first elastic member abuts against a limiting portion arranged in the housing.

[0027] A push rod and a shift rod are provided to form a driving rod, the push rod and the valve core are rotatably connected, and a push portion is provided on the shift rod to abut against the base station. The push rod can be thinner than the shift rod to save space in the housing. The shift rod can be thicker than the push rod to enhance the overall structural strength of the driving rod. At this time, a first elastic member can be sleeved on the outside of the push rod as a reset member, and the elastic force of the first elastic member and the gravity of the driving rod itself can be used to help the driving rod return to and remain in the initial position, so that the air duct conversion structure can be smoothly switched from the second state to the first state. In addition, the first elastic member can be positioned by using the diameter-changing portion formed between the push rod and the shift rod.

[0028] In a possible implementation, the valve core includes a baffle, a linkage shaft, and a transmission part that are connected in sequence;

[0029] The baffle is located in the valve housing, the linkage shaft is inserted into the mounting hole between the first inlet and the second inlet, and the linkage shaft extends out of the valve housing, the transmission part is located outside the valve housing, and one end of the transmission part away from the baffle is rotatably connected to the drive rod.

[0030] The valve core is formed by setting a baffle, a linkage shaft and a transmission part connected in sequence. The baffle is located in the valve housing to switch the connection state of the three-way valve. The linkage shaft is inserted into the mounting hole between the first inlet and the second inlet of the valve housing, so that the baffle is driven to flip by the linkage shaft rotating in the mounting hole. In addition, the linkage shaft is extended outside the valve housing to facilitate the connection between the linkage shaft and the transmission part located outside the valve housing. The transmission part is rotatably connected to the driving rod, and the driving rod moves up and down to drive the transmission part to rotate, thereby driving the baffle to flip between the second inlet and the first inlet.

[0031] In a possible implementation manner, an angle is formed between the transmission portion and the baffle.

[0032] By making an angle between the transmission part and the baffle, the moving tracks of the transmission part and the baffle do not overlap, and the design of the transmission part is more flexible. In addition, the transmission part and the baffle are prevented from being located in the same plane, and the space occupied by the valve core as a whole is smaller.

[0033] In a possible implementation manner, the angle between the transmission portion and the baffle is greater than or equal to 90° and less than 180°.

[0034] By setting the angle between the transmission part and the baffle to be greater than or equal to 90° and less than 180°, during the process of the baffle flipping between blocking the second opening and blocking the first opening, the transmission part mainly moves in the axial direction of the housing, and the swing amplitude of the transmission part in the plane direction of the housing is relatively small. The movement trajectory of the driving rod can be controlled, the movement space required for the driving rod can be reduced, the shear force on the driving rod can be reduced, and the stability and reliability of the movement of the driving rod can be improved.

[0035] In a possible implementation manner, a pulley is sleeved on one end of the transmission part away from the baffle, and a sliding groove is provided on the driving rod, and the pulley slides along the sliding groove.

[0036] By arranging a pulley at the end of the transmission part and providing a slide groove on the driving rod, the pulley arranged on the transmission part rolls in the slide groove of the driving rod, thereby reducing the friction between the transmission part and the driving rod, ensuring the flexible rotation of the transmission part and ensuring the smooth and precise movement of the air duct conversion structure.

[0037] In a possible implementation, along a direction perpendicular to the axial direction of the housing, an extension length of the slide groove is greater than a diameter of the pulley;

[0038] The pulley translates along the slide groove to make the driving rod move along the axial direction of the housing.

[0039] In the direction perpendicular to the axial direction of the housing, by making the extension length of the slide groove greater than the diameter of the pulley, a certain horizontal movement space can be reserved for the pulley. By the pulley moving along the slide groove, the amplitude of the driving rod moving is reduced, so that the driving rod can move along the axial direction of the housing, thereby improving the motion trajectory accuracy of the driving rod.

[0040] In a possible implementation manner, the valve housing includes a valve body and a valve cover, a side wall of the valve body is provided with an installation opening, and the valve cover is covered on the installation opening;

[0041] The installation opening is used for the valve core to pass through, so that the valve core is at least partially located in the valve housing.

[0042] The mounting opening is provided on the side wall of the valve body, and the baffle of the valve core is mounted in the valve housing by using the mounting opening. In addition, a cover plate is provided at the mounting opening of the valve body, and the mounting opening is blocked by the cover plate to prevent air leakage from the mounting opening.

[0043] In a possible implementation manner, a stopper is provided on the outer wall surface of the valve cover, and when the air duct conversion structure is in the second state, the valve core abuts against the stopper.

[0044] By arranging a stop portion on the outer wall surface of the valve cover, when the baffle of the valve core flips to block the first inlet, the transmission part of the valve core abuts against the stop portion on the valve cover to limit the drive rod to stop here, ensuring that the air duct conversion structure is stably and reliably in the second state.

[0045] In a possible implementation, the three-way valve is located between the top of the dust cup and the motor, and the dust cup, the three-way valve and the motor are arranged along the axial direction of the housing.

[0046] By arranging the three-way valve between the top of the dust cup and the bottom of the motor, the dust cup, the three-way valve and the motor are arranged in sequence along the axial direction of the housing, and the dust cup, the three-way valve and the motor as a whole occupy a smaller space in the plane direction of the housing, which is conducive to the miniaturization design of the housing. In addition, the connection path of the dust cup, the three-way valve and the motor is shorter, which is conducive to improving the connection strength and reliability of the three.

[0047] In a possible implementation, the first inlet and the outlet both extend along the axial direction of the housing, and the second inlet extends along a direction perpendicular to the axial direction of the housing.

[0048] By making the first inlet and outlet of the valve housing extend along the axial direction of the housing, and the second inlet of the valve housing extend in a direction perpendicular to the axial direction of the housing, it is convenient to design and manufacture the valve housing, to connect the valve housing with the dust cup and the motor located on the upper and lower sides thereof, and to connect the valve housing with the dust collecting air duct located on the side of the dust cup. In addition, the airflow can flow through the dust cup, the three-way valve and the motor along the axial direction of the housing, and the gas flow path is smoother, which can increase the gas flow rate and improve the performance of the cleaning device.

[0049] In a possible implementation, an air inlet is further provided at the upper portion of the dust cup, and the air inlet corresponds to a filter element provided in the dust cup;

[0050] The driving assembly is provided with a blocking portion, which protrudes toward the dust cup; when the air duct conversion structure is in a first state, the blocking portion blocks the air inlet; when the air duct conversion structure is in a second state, the blocking portion is staggered with the air inlet.

[0051] By opening an air inlet corresponding to the filter element at the upper part of the dust cup, and providing a blocking portion protruding toward the dust cup on the driving component, when the cleaning device performs dust collection and the air duct conversion structure is in the first state, the blocking portion blocks the air inlet to prevent the dust cup from leaking out. When the cleaning system performs dust collection and the air duct conversion structure is in the second state, the driving component moves up to the blocking portion and is offset from the air inlet, and the airflow can enter the dust cup from the air inlet to clean the dust on the surface of the filter element, thereby improving the filtering effect of the dust cup.

[0052] In a possible implementation, a plurality of filter elements are sequentially arranged along the axial direction of the dust cup, and the air inlet corresponds to the filter element located at the top of the dust cup.

[0053] By arranging multiple filter elements in sequence along the axial direction of the dust cup, the airflow passes through each filter element in sequence. Under the multiple filtering effects of each filter element, the filtering effect of the dust cup can be improved, and the dust can be more thoroughly blocked in the dust cup, so as to improve the dust collecting effect of the dust cup.

[0054] By matching the air inlet of the dust cup with the filter element at the top of the dust cup, when the air duct conversion structure is in the second state, the airflow enters the dust cup from the air inlet of the dust cup and passes through each filter element in the dust cup in sequence, which has a better cleaning effect on the dust cup, can further improve the filtering effect of the dust cup, and improve the dust collection performance of the cleaning equipment.

[0055] In a possible implementation, a flexible layer is provided on a surface of the sealing portion facing the dust cup, and an edge of the flexible layer completely overlaps with an edge of the sealing portion, or an edge of the flexible layer extends beyond the edge of the sealing portion.

[0056] By setting a flexible layer on the surface of the sealing part facing the dust cup, the flexible layer completely covers the sealing part. The flexible layer can fit tightly with the outer wall surface of the air inlet, ensuring that the air inlet of the dust cup is tightly sealed to avoid air leakage in the dust cup.

[0057] In a possible embodiment, the air duct conversion structure includes a track-changing air duct, which is movably connected between the air outlet of the dust cup and the air inlet of the motor; the track-changing air duct includes a first air duct and a second air duct separated from each other, and the track-changing air duct can be moved between a first position and a second position;

[0058] When the track-changing air duct is in the first position, the first air duct is connected between the air outlet of the dust collecting cup and the air inlet of the motor; when the track-changing air duct is in the second position, the second air duct is connected between the dust collecting air duct and the air inlet of the motor.

[0059] By connecting a movable track-changing air duct between the air outlet of the dust cup and the air inlet of the motor, a first air duct and a second air duct separated from each other are set for the track-changing air duct, and the track-changing air duct is moved between a first position and a second position. When the cleaning device performs cleaning work, the track-changing air duct can be moved to the first position, so that the first air duct is connected between the air outlet of the dust cup and the air inlet of the motor, so that the negative pressure of the motor acts on the dust collection air duct. When the cleaning system performs dust collection work, the track-changing air duct can be moved to the second position, so that the second air duct is connected between the dust collection air duct and the air inlet of the motor, so that the negative pressure of the motor acts on the dust collection air duct.

[0060] In a possible implementation, the first air duct and the second air duct are arranged side by side in a direction perpendicular to the axial direction of the dust cup.

[0061] By arranging the first air duct and the second air duct side by side in a direction perpendicular to the axial direction of the dust cup, the track-changing air duct can be moved in the plane direction of the casing. In this way, it is convenient to install the track-changing air duct between the dust cup and the motor, and it is also convenient to control the movement of the track-changing air duct. In addition, it is convenient for the first air duct to dock with the air outlet of the dust cup and the air inlet of the motor, and it is also convenient for the second air duct to dock with the dust collecting air duct and the air inlet of the motor.

[0062] In a possible implementation, the first air duct extends along the axial direction of the dust cup, and both axial ends of the first air duct are open;

[0063] In the axial direction of the dust cup, the air inlet end of the second air duct and the air outlet end of the second air duct are staggered with each other.

[0064] By extending the first air duct along the axial direction of the dust cup and opening at both axial ends of the first air duct, the first air duct is facilitated to connect with the air outlet of the dust cup and the air inlet of the motor, and the air flow can flow through the dust cup, the first air duct and the motor in sequence along the axial direction of the casing, which can increase the flow rate of the air flow and enhance the dust collection effect of the cleaning equipment.

[0065] By staggering the air inlet and outlet of the second air duct, the air inlet and outlet of the second air duct respectively correspond to the staggered dust collecting air duct and the air inlet of the motor, thereby facilitating the docking of the second air duct with the dust collecting air duct and the air inlet of the motor.

[0066] In a possible embodiment, the second air duct includes a first section and a second section that are interconnected and have an angle, the air inlet end of the second air duct is an end of the first section away from the second section, and the air outlet end of the second air duct is an end of the second section away from the first section. In a possible embodiment, the dust suction air duct and the dust collection air duct both extend along the axial direction of the housing, and the dust inlet and the dust outlet are staggered in the axial direction of the dust cup.

[0067] By making the dust suction duct and the dust collection duct extend along the axial direction of the housing, the airflow in the dust suction duct and the airflow in the dust collection duct can flow vertically upward along the axial direction of the housing, the airflow velocity in the dust suction duct and the dust collection duct is fast, and the dust suction and dust collection efficiency of the cleaning system is high. In addition, correspondingly, the dust inlet and the dust outlet of the dust cup can be staggered in the axial direction of the dust cup, the broken area of ​​the dust cup in the same area in the axial direction is small, and the dust cup has high structural strength and good reliability.

[0068] In a possible implementation, the bottom end of the dust discharge port is flush with the inner bottom wall of the dust cup; or, the dust discharge port is at least partially located on the bottom wall of the dust cup.

[0069] By arranging the dust discharge port on the side wall of the dust cup and making the bottom end of the dust discharge port flush with the inner bottom wall of the dust cup, or by arranging the dust discharge port at least partially on the bottom wall of the dust cup, it can be ensured that the dust at the bottom of the dust cup can be smoothly discharged through the dust discharge port, thereby ensuring that the dust in the dust cup is completely and thoroughly removed.

[0070] In a possible implementation, along the axial direction of the dust cup, the dust inlet is located above the dust outlet, and the dust inlet is located below at least a portion of the filter element disposed in the dust cup.

[0071] By arranging the dust inlet above the dust outlet, the dust accumulated at the bottom of the dust cup can enter the base station through the dust outlet, thereby improving the dust collection efficiency of the cleaning system and the cleaning effect of the cleaning equipment. In addition, by arranging the dust inlet below at least part of the filter element, the airflow entering the dust cup will inevitably pass through the filter element when flowing toward the top of the dust cup, thereby ensuring that the filter element effectively performs its filtering function.

[0072] In a possible implementation, the dust discharge port is provided with a dust discharge cover, the dust discharge cover is rotatably connected to the dust collecting cup, and a second elastic member is provided between the dust discharge cover and the dust collecting cup;

[0073] When the air duct conversion structure is in the first state, the elastic force of the second elastic member can cause the dust exhaust cover to block the dust exhaust port; when the air duct conversion structure is in the second state, the dust exhaust cover opens the dust exhaust port.

[0074] By arranging a rotatable dust cover at the dust outlet of the dust cup, and arranging a second elastic member between the dust cover and the dust cup, the elastic force of the second elastic member acts on the dust cover. When the air duct conversion structure is in the first state, under the action of the elastic force of the second elastic member and the weight of the dust cover itself, the dust cover remains in the position of blocking the dust outlet, so as to ensure the orderliness of the airflow in the dust cup and the stability of the dust collection process of the cleaning equipment. When the air duct conversion structure is in the second state, under the action of the negative pressure in the dust collecting air duct, the dust cover overcomes the elastic force of the second elastic member and its own weight, and rotates to the position of opening the dust outlet, so as to realize the dust collection action of the cleaning system.

[0075] In a possible implementation, a side of the housing facing the base station is further provided with an air return port, the air return port is connected to the dust collecting air duct, and the air return port is located above the dust outlet.

[0076] By opening an air return port on the side surface of the casing facing the base station, the air return port is connected to the dust collection duct, and the air return port is set above the dust outlet. The air flow after the dust is separated in the base station flows upward under the action of air pressure, passes through the exhaust port on the base station and the air return port on the casing in turn, and flows back to the cleaning equipment.

[0077] In a possible implementation, the air return port is provided with a movable air return cover;

[0078] When the air duct conversion structure is in the first state, the air return cover blocks the air return port; when the air duct conversion structure is in the second state, the air return cover opens the air return port.

[0079] By providing a movable air return cover at the air return port of the housing, when the air duct conversion structure is in the first state, the air return cover is kept in the position of blocking the air return port under the action of its own gravity. When the air duct conversion structure is in the second state, under the action of the negative pressure in the dust collection air duct, the air return cover overcomes its own gravity and rotates to the position of opening the air return port, so as to realize the dust collection action of the cleaning system.

[0080] A second aspect of the present application provides a base station for working in conjunction with the cleaning device as described above, the base station comprising:

[0081] The box body has a side wall facing the cleaning device and is provided with a dust collecting port, the dust collecting port being used to be connected to a dust outlet of the cleaning device;

[0082] The dust collecting chamber is arranged in the box body and is communicated with the dust collecting port.

[0083] The base station provided by the present application has a dust collecting port opened on the side wall of the box body facing the cleaning device, the dust collecting port is connected to the dust collecting chamber in the box body, and the dust collecting port is used to be connected to the dust outlet of the cleaning device. When the base station cooperates with the cleaning device, the air duct conversion structure of the cleaning device is in the second state, connecting the dust collecting air duct and the air inlet of the motor. Under the negative pressure of the motor, the dust in the dust cup passes through the dust outlet of the cleaning device and the dust collecting port of the base station in turn, and enters the dust collecting chamber of the base station to realize the dust collection function of the base station. With such a configuration, there is no need to add a motor and other components to the base station. The dust suction and dust collection functions can be realized by using the motor of the cleaning device itself, which can reduce the size of the base station, improve the appearance of the cleaning system, and reduce the cost of the cleaning system.

[0084] In a possible implementation manner, the base station further includes:

[0085] The triggering part is arranged on the box body and is used for triggering the air duct conversion structure of the cleaning device to convert from the first state to the second state.

[0086] By arranging a trigger part on the box body, the trigger part and the air duct conversion structure of the cleaning equipment cooperate with each other, and the air duct conversion structure is driven to convert from a first state to a second state, so that the cleaning system performs dust collection work.

[0087] In a possible implementation, the trigger portion protrudes from a side wall of the box body facing the cleaning device, and the trigger portion is located below the dust collecting port, and the trigger portion is used to push the driving rod of the air duct conversion structure.

[0088] By making the trigger part protrude on the wall of the box body facing the cleaning device, the trigger part is close to the driving rod in the housing, which facilitates the cooperation between the driving rod and the trigger part. By arranging the trigger part below the dust collection port, the height of the trigger part and the push part on the driving rod are matched, so that the push part can abut on the trigger part. In addition, there is enough space below the dust collection port to arrange the trigger part, and the trigger part will not affect the dust collection port and the exhaust port.

[0089] In a possible embodiment, an exhaust port is also provided on a side wall of the box body facing the cleaning device. The exhaust port is located above the dust collecting port and between the top wall of the dust collecting chamber and the top wall of the box body. The exhaust port is connected to the return air port of the cleaning device.

[0090] By opening an exhaust port on the side wall of the box body facing the cleaning device, and setting the exhaust port above the dust collecting port, the rationality of the airflow path design is met. The airflow mixed with dust enters the dust collecting chamber of the base station from the dust collecting port below, and the airflow after the dust is separated is discharged from the box body through the exhaust port above. Among them, by setting the exhaust port between the top wall of the dust collecting chamber and the top wall of the box body, the airflow filtered by the dust collecting chamber flows out from the top wall of the dust collecting chamber, passes through the exhaust port of the box body and the return air port of the cleaning device, and flows back to the cleaning device.

[0091] A third aspect of the present application provides a cleaning system, comprising the cleaning device as described above and the base station as described above.

[0092] The cleaning device provided in the present application includes a cleaning device and a base station. A dust cup, a dust suction duct and a motor are arranged in the casing of the cleaning device. The dust suction duct is connected to the dust inlet of the dust cup, and the motor is arranged above the dust cup. On this basis, a dust collection duct and a duct conversion structure are also arranged in the casing. The dust collection duct is separated from the dust suction duct and is connected to the dust discharge port of the dust cup and the dust outlet on the casing. The duct conversion structure is arranged between the air outlet of the dust cup and the air inlet of the motor. When the cleaning device performs cleaning work, the duct conversion structure is in the first state, connecting the air outlet of the dust cup with the air inlet of the motor. Under the negative pressure of the motor, the airflow enters the dust cup from the dust suction duct and flows out from the air outlet of the dust cup to realize the dust suction function of the cleaning device. When the cleaning device cooperates with the base station, the air duct conversion structure is in the second state, connecting the dust collection duct and the air inlet of the motor. Under the negative pressure of the motor, the airflow enters from the dust suction port of the floor brush and flows along the dust collection duct, so that the dust in the dust cup enters the base station through the dust discharge port and the dust outlet in turn, so as to realize the dust collection function of the base station. With this arrangement, there is no need to add motors and other components to the base station. The dust suction and dust collection functions can be realized by using the motor of the cleaning device itself, which can reduce the size of the base station, improve the appearance of the cleaning system, and reduce the cost of the cleaning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0093] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0094] Figure 1 A schematic diagram of the structure of a cleaning system provided in an embodiment of the present application;

[0095] Figure 2 for Figure 1 A breakdown structure diagram of one perspective of the cleaning system in the

[0096] Figure 3 for Figure 1 Another perspective of the cleaning system breakdown structure diagram;

[0097] Figure 4 A structural diagram of a cleaning device provided in an embodiment of the present application from one perspective;

[0098] Figure 5 for Figure 4A structural diagram of the cleaning equipment from another perspective;

[0099] Figure 6 for Figure 4 A partial cross-sectional view of the cleaning equipment along line BB;

[0100] Figure 7 for Figure 4 A schematic diagram of the structure of the dust cup of the cleaning device;

[0101] Figure 8 for Figure 4 A schematic diagram of the structure of the cleaning device after removing part of the casing;

[0102] Fig. 9 A schematic diagram of the structure of a base station provided in an embodiment of the present application;

[0103] Fig.10 for Fig. 9 A cross-sectional view of the base station along the CC line;

[0104] Fig.11 A partial internal structure diagram of the cleaning device when the air duct conversion structure is in a first state;

[0105] Fig.12 A diagram showing the coordination structure of a cleaning device and a base station provided in an embodiment of the present application;

[0106] Fig.13 A partial internal structure diagram of the cleaning device when the air duct conversion structure is in the second state;

[0107] Fig.14 for Figure 1 A cross-sectional view of the cleaning system along line AA;

[0108] Fig.15 A schematic diagram of the structure of the air duct conversion structure provided in an embodiment of the present application;

[0109] Fig.16 for Fig.15 A cross-sectional view of the air duct conversion structure in the first state;

[0110] Fig.17 for Fig.15 A cross-sectional view of the air duct conversion structure in the second state;

[0111] Fig.18 for Fig.15 A schematic diagram of the structure of a three-way valve of an air duct conversion structure;

[0112] Fig.19 for Fig.18 A schematic diagram of the structure of the valve core of the three-way valve;

[0113] Fig. 20 A partial exploded structural diagram of a dust cup provided in an embodiment of the present application;

[0114] Fig.21 A partial exploded structural diagram of a cleaning device provided in an embodiment of the present application;

[0115] Fig. 22 A cross-sectional view of a dust cup provided in an embodiment of the present application. DETAILED DESCRIPTION

[0116] As described in the background technology, in order to realize the automatic dust collection function, the existing vacuum cleaners need to have an integrated motor and a dust collection duct built into the base station in addition to setting a dust collection motor inside the body. In addition, it is also necessary to set up a power supply and management system, a circuit control system, a heat dissipation system, a noise control system, and a vibration control system inside the base station.

[0117] As a result, there are many components integrated inside the base station, the base station is large in size, has poor flexibility, and occupies more space, especially in the longitudinal direction, which results in an increase in the overall size of the vacuum cleaner system consisting of the vacuum cleaner and the base station, which will cause inconvenience in a home or office environment, especially when storing and moving the vacuum cleaner system.

[0118] Moreover, as an independent device, when the base station has many integrated components, it will incur additional manufacturing and assembly costs, which will lead to a higher cost for the vacuum cleaner system. In addition, the base station also has problems such as complex dust collection duct design, low dust collection efficiency, and high energy consumption.

[0119] In view of this, the embodiments of the present application provide a cleaning device, a base station and a cleaning system. A dust cup, a dust suction duct and a motor are arranged in the casing of the cleaning device. The dust suction duct is connected to the dust inlet of the dust cup, and the motor is arranged above the dust cup. On this basis, a dust collection duct and a duct conversion structure are also arranged in the casing. The dust collection duct is separated from the dust suction duct and is connected to the dust discharge port of the dust cup and the dust outlet on the casing. The duct conversion structure is arranged between the air outlet of the dust cup and the air inlet of the motor. When the cleaning device performs cleaning work, by making the duct conversion structure in the first state, the air outlet of the dust cup is connected to the air inlet of the motor, and the air flow enters the dust cup from the dust suction duct under the negative pressure of the motor, and flows out from the air outlet of the dust cup, so as to realize the dust suction function of the cleaning device. When the cleaning device cooperates with the base station, the air duct conversion structure is in the second state, connecting the dust collection duct and the air inlet of the motor. Under the negative pressure of the motor, the airflow entering from the suction port of the floor brush flows along the dust collection duct, and the dust in the dust cup enters the base station through the dust discharge port and the dust outlet in turn, so as to realize the dust collection function of the base station. With such a configuration, even if the base station does not add a motor and other components, the motor of the cleaning device itself can be used to realize the dust suction and dust collection functions, which can reduce the size of the base station, improve the appearance of the cleaning system, and reduce the cost of the cleaning system.

[0120] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0121] Figure 1 A schematic diagram of the structure of the cleaning system provided in an embodiment of the present application. Figure 2 for Figure 1 A breakdown structure diagram of one view of the cleaning system in the. Figure 3 for Figure 1 Another view of the cleaning system in the breakdown structure diagram.

[0122] Reference Figure 1 As shown, an embodiment of the present application provides a cleaning system, which includes a cleaning device 1 and a base station 2. The cleaning device 1 includes but is not limited to a vacuum cleaner, a sweeper or a floor scrubber. The cleaning device 1 is mainly used to clean stains and dust on the surface to be cleaned. The surface to be cleaned can be a floor, a wall or a surface of an object to be cleaned with different degrees of roughness. The embodiment of the present application does not specifically limit the type of the surface to be cleaned. The base station 2 is used in conjunction with the cleaning device 1, and the base station 2 can collect dust in the cleaning device 1.

[0123] Combination Figure 2 and Figure 3 As shown, the cleaning device 1 is provided with a dust outlet, and the dust outlet 210 is located on the side surface of the cleaning device 1 facing the base station 2. The base station 2 is provided with a dust collection port 610, and the dust collection port 610 is located on the side surface of the base station 2 facing the cleaning device 1. When the cleaning device 1 is used in conjunction with the base station 2, the dust outlet 210 of the cleaning device 1 corresponds to and is connected with the dust collection port 610 of the base station 2. The dust in the cleaning device 1 can pass through the dust outlet 210 of the cleaning device 1 and the dust collection port 610 of the base station 2 in sequence and enter the interior of the base station 2. The dust in the cleaning device 1 can be collected through the base station 2 to realize the dust collection function of the cleaning system.

[0124] In this embodiment, the negative pressure generated by the cleaning device 1 itself can be used to push the dust in the cleaning device 1 into the base station 2 along with the airflow. In this regard, the airflow generated by the negative pressure in the cleaning device 1 needs to flow back from the base station 2 to the cleaning device 1 after flowing from the cleaning device 1 into the base station 2.

[0125] In order to make the airflow entering the base station 2 flow back to the cleaning device 1 smoothly, Figure 2 and Figure 3 As shown, in some embodiments, the base station 2 may also be provided with an exhaust port 620, which may be located on a side surface of the base station 2 facing the cleaning device 1. Correspondingly, the cleaning device 1 may be provided with an air return port 220, which may be located on a side surface of the cleaning device 1 facing the base station 2. When the cleaning device 1 is used in conjunction with the base station 2, the exhaust port 620 of the base station 2 corresponds to and is connected to the air return port 220 of the cleaning device 1.

[0126] Under the negative pressure generated inside the cleaning device 1, the dust in the cleaning device 1 moves with the airflow, passes through the dust outlet 210 of the cleaning device 1 and the dust collection port 610 of the base station 2 in sequence, and enters the base station 2. The dust is collected in the base station 2. The airflow entering the base station 2 passes through the exhaust port 620 of the base station 2 and the return air port 220 of the cleaning device 1 in sequence, and flows back into the cleaning device 1.

[0127] Considering the rationality of the airflow path design, the dust outlet 210 can be located below the return air port 220 in the gravity direction (vertical) of the cleaning device 1. Correspondingly, the dust collecting port 610 can be located below the exhaust port 620 in the gravity direction (vertical) of the base station 2. In this way, under the action of gravity, the dust in the cleaning device 1 moves with the airflow, passes through the dust outlet 210 and the dust collecting port 610 located below, and enters the base station 2 in sequence. Under the filtering effect of the base station 2 and its own gravity, the dust is collected in the base station 2. The airflow after the dust is separated in the base station 2 passes through the exhaust port 620 and the return air port 220 located above in sequence, and flows back to the cleaning device 1.

[0128] Of course, in other embodiments, a vertically larger dust outlet 210 may be provided on the cleaning device 1, and the dust outlet 210 may serve as both a dust outlet and an airflow return outlet. Similarly, a vertically larger dust collection port 610 may be provided on the base station 2, and the dust collection port 610 may serve as both a dust inlet and an airflow outlet.

[0129] Figure 4 A structural diagram of a cleaning device provided in an embodiment of the present application from one perspective. Figure 5 for Figure 4 Another perspective diagram of the cleaning equipment. Figure 6 for Figure 4 A partial cross-sectional view of the cleaning equipment along line BB. Figure 7 for Figure 4 Schematic diagram of the structure of the dust cup of the cleaning device. Figure 8 for Figure 4 Schematic diagram of the structure of the cleaning device after removing part of the casing.

[0130] Reference Figure 4 and Figure 5 As shown, the cleaning device 1 may include a floor brush 10 and a body 20, and the floor brush 10 may be connected to the bottom end of the body 20. The floor brush 10 is used to clean the surface to be cleaned. The body 20 is used for the user to hold and control the operation of the floor brush 10. The body 20 may include a housing 200, and the dust outlet 210 and the air return port 220 on the aforementioned cleaning device 1 may be opened on the housing 200, and the dust outlet 210 and the air return port 220 may be located on the side wall of the housing 200 facing the base station 2.

[0131] Reference Figure 6 As shown, the body 20 also includes a dust cup 300 and a motor 400 arranged in the casing 200. The casing 200 may be provided with a mounting groove (not shown in the figure), and the mounting groove may be, for example, located on a side surface of the casing 200 away from the base station 2. In other words, the notch of the mounting groove faces away from the base station 2. The dust cup 300 may be installed in the mounting groove, and the dust cup 300 is partially exposed at the notch of the mounting groove to facilitate the removal of the dust cup 300. In addition, at least the portion of the dust cup 300 exposed outside the casing 200 may be transparent to observe the dust collection state in the dust cup 300. The motor 400 may be completely contained in the casing 200 to protect the motor 400 by the casing 200.

[0132] The motor 400 may be located above the dust cup 300, or in other words, in the gravity direction (vertical direction) of the body 20, the motor 400 is located above the dust cup 300. The bottom end of the motor 400 may be the air inlet 410 of the motor 400, and the portion close to the top of the motor 400 may be the air outlet 420 of the motor 400. The housing 200 is provided with an exhaust port 230 connected to the air outlet 420 of the motor 400. The air outlet 330 of the dust cup 300 may be arranged at the top of the dust cup 300, and the air outlet 330 of the dust cup 300 corresponds to the air inlet 410 of the motor 400 and may be connected to each other.

[0133] Combination Figure 6 and Figure 7 As shown, the dust cup 300 is also provided with a dust inlet 310, and a dust suction duct 240 is also provided in the housing 200, and the bottom end of the dust suction duct 240 is connected to the dust suction port 100 of the floor brush 10 (see Figure 5 ), and the dust suction duct 240 is connected to the dust inlet 310 of the dust cup 300. The dust suction duct 240 is provided with an opening at a position corresponding to the dust inlet 310, and the dust suction duct 240 and the dust inlet 310 of the dust cup 300 are connected through the opening.

[0134] Exemplarily, the dust suction duct 240 may be located on the side of the dust cup 300 , and the dust inlet 310 of the dust cup 300 may be opened on the side wall of the dust cup 300 , so that the dust inlet 310 of the dust cup 300 is connected to the dust suction duct 240 .

[0135] Combination Figure 6 and Figure 8 As shown, on this basis, in the cleaning device 1 of this embodiment, a dust collecting duct 250 and a duct conversion structure 500 are further provided in the housing 200. The dust collecting duct 250 is separated from the dust suction duct 240, and the bottom end of the dust collecting duct 250 can also be communicated with the dust suction port 100 of the floor brush 10, and the dust collecting duct 250 can be communicated with the air inlet 410 of the motor 400, for example, the top end of the dust collecting duct 250 can be communicated with the air inlet 410 of the motor 400. The duct conversion structure 500 is arranged between the air outlet 330 of the dust cup 300 and the air inlet 410 of the motor 400. For example, in the axial direction of the housing 200, the duct conversion structure 500 is connected between the dust cup 300 and the motor 400.

[0136] Combination Figure 7 and Figure 8As shown, the dust cup 300 is further provided with a dust discharge port 320, which is communicated with the dust collecting air duct 250 in the housing 200, and the dust collecting air duct 250 is communicated with the dust outlet 210 and the return air port 220 provided on the housing 200. The dust collecting air duct 250 may be provided with a connecting port 251, and the dust discharge port 320 of the dust cup 300 is correspondingly communicated with the connecting port 251 of the dust collecting air duct 250, and the connecting port 251 of the dust collecting air duct 250 is correspondingly communicated with the dust outlet 210 on the housing 200, so that the dust discharge port 320 of the dust cup 300 and the dust outlet 210 of the housing 200 are connected through the connecting port 251 of the dust collecting air duct 250.

[0137] By setting an air duct conversion structure 500 between the air outlet 330 of the dust cup 300 and the air inlet 410 of the motor 400, the air duct conversion structure 500 is used to change the connection state between the dust suction air duct 240 and the dust collection air duct 250 and the air inlet 410 of the motor 400. Among them, the air duct conversion structure 500 can be switched between a first state and a second state. When the cleaning device 1 performs cleaning work, the air duct conversion structure 500 can be in a first state; at this time, the air duct conversion structure 500 connects the air outlet 330 of the dust cup 300 with the air inlet 410 of the motor 400. When the cleaning device 1 is used in conjunction with the base station 2, the air duct conversion structure 500 can be switched from the first state to the second state; at this time, the air duct conversion structure 500 connects the dust collection air duct 250 with the air inlet 410 of the motor 400.

[0138] Fig. 9 A schematic diagram of the structure of a base station provided in an embodiment of the present application. Fig.10 for Fig. 9 Cross-sectional view of the base station along the CC line. Fig. 9 and Fig.10 As shown, the base station 2 may include a box body 600 and a dust collecting chamber 700. The dust collecting port 610 and the exhaust port 620 on the aforementioned base station 2 may be provided on the box body 600, and both the dust collecting port 610 and the exhaust port 620 may be located on a side wall of the box body 600 facing the cleaning device 1. The dust collecting chamber 700 is provided in the box body 600, and the dust collecting chamber 700 may have a dust filtering function to collect dust from the dust collecting cup 300 of the cleaning device 1.

[0139] Among them, an air inlet 710 can be opened on the side wall of the dust collecting chamber 700 facing the cleaning device 1, and the air inlet 710 of the dust collecting chamber 700 can be connected with the dust collecting port 610 of the box body 600, so that the air flow passes through the dust collecting port 610 of the box body 600 and the air inlet 710 of the dust collecting chamber 700 in turn and enters the dust collecting chamber 700.

[0140] Furthermore, the dust collecting chamber 700 may be arranged close to the bottom wall of the box body 600. For example, the dust collecting chamber 700 may be detachably mounted on the bottom wall of the box body 600. A certain convection space may be provided between the top wall of the dust collecting chamber 700 and the top wall of the box body 600, and the exhaust port 620 on the box body 600 may be provided corresponding to the convection space. In other words, the exhaust port 620 may be located between the top wall of the dust collecting chamber 700 and the top wall of the box body 600, so that the airflow flows from the top wall of the dust collecting chamber 700 into the convection space and then flows out from the exhaust port 620 of the box body 600.

[0141] Continue to refer to Fig. 9 or Fig.10 The base station 2 may further include a base 800, which may be connected to a side wall of the box 600 facing the cleaning device 1, and the base 800 may be located at the bottom of the box 600. When the cleaning device 1 is used in conjunction with the base station 2, the roller brush of the cleaning device 1 may be supported on the base 800. For example, a limiting structure (not shown in the figure) may be provided on the base 800, and the position of the roller brush may be limited by the limiting structure to ensure the stability of the cooperation between the cleaning device 1 and the base station 2.

[0142] In some embodiments, a trigger unit 630 may be further provided on the housing 600 of the base station 2, and the trigger unit 630 is used to cooperate with the air duct conversion structure 500 of the cleaning device 1. When the cleaning device 1 is used in conjunction with the base station 2, the trigger unit 630 of the base station 2 transmits a driving force to the air duct conversion structure 500 of the cleaning device 1 to drive the air duct conversion structure 500 to switch from the first state to the second state, so that the cleaning system performs dust collection.

[0143] In other embodiments, the cleaning device 1 can also independently complete the triggering action of the air duct conversion structure 500. In other words, the air duct conversion structure 500 can be switched from the first state to the second state by operating the cleaning device 1 itself without the need for the cleaning device 1 to cooperate with the base station 2. In this case, the trigger unit 630 may not be provided on the box 600 of the base station 2.

[0144] The following is a detailed description of the movement state and working principle of the cleaning system when performing cleaning and dust collection work.

[0145] Fig.11 FIG. 1 is a partial internal structure diagram of the cleaning device when the air duct conversion structure is in the first state. Figure 6 and Fig.11As shown, when the cleaning device 1 is performing cleaning work, the air duct conversion structure 500 is in the first state, and the air duct conversion structure 500 connects the air outlet 330 of the dust cup 300 with the air inlet 410 of the motor 400, which is equivalent to connecting the dust collection air duct 240 with the air inlet 410 of the motor 400, while the dust collection air duct 250 is not connected with the air inlet 410 of the motor 400. At this time, the negative pressure generated by the operation of the motor 400 acts on the air outlet 330 of the dust cup 300 and the dust collection air duct 240. Under the action of the negative pressure of the motor 400, the cleaning device 1 generates a negative pressure along the air outlet 330 of the dust cup 300. Figure 6 The airflow flows in the direction shown by the arrows.

[0146] Specifically, under the negative pressure generated by the motor 400, the outside air enters the cleaning device 1 from the dust suction port 100 of the floor brush 10, and the airflow flows along the dust suction duct 240. The dust on the surface to be cleaned enters the dust suction port 100 of the floor brush 10 with the airflow, and the airflow mixed with dust flows along the dust suction duct 240, and then enters the dust cup 300 from the dust inlet 310 of the dust cup 300. The dust entering the dust cup 300 is accumulated in the dust cup 300 under the filtering effect of the dust cup 300 and its own gravity. The airflow after separating the dust enters the motor 400 from the air outlet 330 of the dust cup 300 through the air inlet 410 of the motor 400, and is finally discharged to the outside of the cleaning device 1 through the air outlet 420 of the motor 400 and the exhaust port 230 of the housing 200.

[0147] Fig.12 A diagram of the coordination structure of the cleaning device and the base station provided in an embodiment of the present application. Fig.13 This is a partial internal structure diagram of the cleaning device when the air duct conversion structure is in the second state. Fig.14 for Figure 1 A cross-sectional view of the cleaning system along line AA.

[0148] Combination Fig.12 and Fig.13 As shown, when the cleaning device 1 cooperates with the base station 2, the cleaning device 1 is placed on the base 800 of the base station 2. The air duct conversion structure 500 of the cleaning device 1 cooperates with the trigger part 630 of the base station 2, and the trigger part 630 drives the air duct conversion structure 500 to switch from the first state to the second state. The air duct conversion structure 500 connects the dust collection air duct 250 with the air inlet 410 of the motor 400, while the air outlet 330 of the dust cup 300 is not connected to the air inlet 410 of the motor 400, which is equivalent to the dust collection air duct 240 being not connected to the air inlet 410 of the motor 400. At this time, the negative pressure generated by the operation of the motor 400 acts on the dust collection air duct 250. Under the action of the negative pressure of the motor 400, a negative pressure is generated inside the cleaning system. Fig.14 The airflow flows in the direction shown by the arrows.

[0149] Specifically, under the negative pressure generated by the motor 400, the outside air enters the cleaning device 1 from the suction port 100 of the floor brush 10, and the airflow flows along the dust collecting duct 250. Under the action of the airflow in the dust collecting duct 250, the dust in the dust cup 300 flows with the airflow, passes through the dust discharge port 320 of the dust cup 300 and the dust outlet 210 of the housing 200 in turn, flows out of the cleaning device 1 and enters the base station 2. The airflow mixed with dust passes through the dust collecting port 610 of the box 600 and the air inlet 710 of the dust collecting chamber 700 in turn, and enters the dust collecting chamber 700. Under the filtering action of the dust collecting chamber 700, the dust is collected in the dust collecting chamber 700. After the airflow after separating the dust leaves the dust collecting chamber 700, it flows out of the base station 2 from the exhaust port 620 of the box 600 and flows back to the cleaning device 1. The air flow enters the dust collecting duct 250 from the air return port 220 of the housing 200 , flows into the air inlet 410 of the motor 400 along the dust collecting duct 250 , and is finally discharged to the outside of the cleaning device 1 through the air outlet 420 of the motor 400 and the air outlet 230 of the housing 200 .

[0150] In this embodiment, the dust collecting air duct 250 and the air duct conversion structure 500 are arranged in the cleaning device 1, and the air duct conversion structure 500 is switched between the first state and the second state, so as to switch between the dust collecting air duct 240 and the dust collecting air duct 250 to communicate with the air inlet 410 of the motor 400. In this way, the negative pressure generated by the motor 400 of the cleaning device 1 can be used to make the air flow flow along the dust collecting air duct 240 or the dust collecting air duct 250, thereby realizing the cleaning function and dust collecting function of the cleaning system.

[0151] In this way, there is no need to set up an additional dust collection motor and a dust collection pipeline in the base station 2, and then, there is no need to set up other components such as power supply and management system, heat dissipation system, circuit control system, noise control system, vibration control system, etc. in the base station 2. The base station 2 has fewer components and a simple structure, which can reduce the size of the base station 2. The base station 2 occupies less space, has good convenience and flexibility, and can improve the appearance of the cleaning system. In addition, the manufacturing and assembly costs of the base station 2 are low, which can reduce the cost of the cleaning system.

[0152] As for the layout design of the dust suction duct 240 and the dust collection duct 250 in the housing 200, as an implementation method, the dust suction duct 240 and the dust collection duct 250 can extend along the axial direction of the housing 200 (see Figure 8As shown). In this way, the airflow in the dust suction duct 240 and the airflow in the dust collecting duct 250 can flow axially and vertically upward in the casing 200, and the airflow in the dust suction duct 240 and the dust collecting duct 250 flows more smoothly and at a faster speed, which can improve the dust suction and dust collection efficiency of the cleaning system and improve the performance of the cleaning device 1. At this time, in the circumferential direction of the casing 200, the dust suction duct 240 and the dust collecting duct 250 can be staggered. For example, the dust suction duct 240 and the dust collecting duct 250 can both be arranged adjacent to the dust collecting cup 300, and the dust suction duct 240 and the dust collecting duct 250 are located in different radial directions of the casing 200. In this way, the body 20 of the cleaning device 1 has a more compact layout and a more reasonable design, which is conducive to the miniaturization of the cleaning device 1.

[0153] Since the dust collecting duct 250 needs to be connected to the dust outlet 210 on the housing 200, and the dust outlet 210 on the housing 200 is provided on the surface of the housing 200 facing the base station 2, the dust collecting duct 250 can be located on the side of the dust collecting cup 300 close to the base station 2. In other words, the dust collecting duct 250 can be provided on the side of the housing 200 facing the base station 2. On this basis, the dust suction duct 240 can also be provided on the side of the housing 200 facing the base station 2, and the dust suction duct 240 and the dust collecting duct 250 can be provided side by side.

[0154] With such arrangement, the dust suction duct 240 and the dust collection duct 250 are compactly arranged, and the overall space occupied by the two is small, which is conducive to the miniaturization of the cleaning device 1. For example, the side of the housing 200 facing the base station 2 can be designed to be rectangular. When the cleaning device 1 is docked with the base station 2, the two can be in a planar abutment mode, with a large contact area and stable contact. In addition, the cross-sections of the dust suction duct 240 and the dust collection duct 250 can both be rectangular, and the dust suction duct 240 and the dust collection duct 250 both have sufficient flow area, which can improve the dust suction and dust collection efficiency of the cleaning system and improve the working performance of the cleaning system.

[0155] It should be noted that due to Figure 6 and Fig.14 The side cross-sectional view of the cleaning device 1 shown in the figure, because the dust suction duct 240 and the dust collection duct 250 are arranged side by side on the side of the housing 200 facing the base station 2, the dust suction duct 240 and the dust collection duct 250 cannot be fully shown from this perspective. Figure 6 The dust collecting air duct 250 is indicated by the arrow-marked line. Fig.14 The dust suction duct 240 is indicated by an arrow-marked line.

[0156] The dust inlet 310 of the dust cup 300 is correspondingly connected to the dust suction duct 240, and the dust discharge port 320 of the dust cup 300 is correspondingly connected to the dust collection duct 250. When the dust suction duct 240 and the dust collection duct 250 both extend along the axial direction of the housing 200, the dust inlet 310 and the dust discharge port 320 of the dust cup 300 can be staggered with each other in the axial direction of the dust cup 300, or in other words, the dust inlet 310 and the dust discharge port 320 are located in different radial directions of the dust cup 300. In this way, the rupture area of ​​the dust cup 300 in the same area in the axial direction is small, which avoids the stress concentration phenomenon of the dust cup 300 and is conducive to improving the structural strength and reliability of the dust cup 300.

[0157] Furthermore, the dust inlet 310 of the dust cup 300 can be located above the dust outlet 320, and the dust outlet 320 is arranged closer to the bottom of the dust cup 300 than the dust inlet 310. In this way, under the negative pressure in the dust collecting air duct 250, the dust accumulated at the bottom of the dust cup 300 can be moved into the base station 2 through the dust outlet 320 of the dust cup 300. The dust collection effect of the cleaning system can be improved, and the dust residual in the dust cup 300 can be avoided from affecting the dust collection effect of the cleaning device 1. Thus, the dust collection efficiency of the cleaning system is improved, and the cleaning effect of the cleaning device 1 is improved.

[0158] Exemplarily, the dust discharge port 320 may be completely located on the side wall of the dust cup 300, and the bottom end of the dust discharge port 320 may be flush with the inner bottom wall of the dust cup 300. Alternatively, the dust discharge port 320 is at least partially located on the bottom wall of the dust cup 300, for example, the dust discharge port 320 is partially located on the side wall of the dust cup 300, partially located on the bottom wall of the dust cup 300, or the dust discharge port 320 is completely located on the bottom wall of the dust cup 300. In this way, it can be ensured that the dust accumulated at the bottom of the dust cup 300 can be smoothly discharged through the dust discharge port 320, ensuring that the dust in the dust cup 300 is completely and thoroughly removed.

[0159] Fig.15 A schematic diagram of the structure of the air duct conversion structure provided in an embodiment of the present application. Fig.16 for Fig.15 A cross-sectional view of the air duct conversion structure in the first state. Fig.17 for Fig.15 A cross-sectional view of the air duct conversion structure in the second state. Fig.18 for Fig.15 Schematic diagram of the structure of the three-way valve of the air duct conversion structure.

[0160] Reference Fig.15As shown, as an embodiment, the air duct conversion structure 500 may include a three-way valve 510 and a drive assembly 520, the three-way valve 510 may be connected between the air outlet 330 of the dust cup 300 and the air inlet 410 of the motor 400, the drive assembly 520 is installed in the housing 200, and the drive assembly 520 is connected to the three-way valve 510.

[0161] When the air outlet 330 of the dust cup 300 is arranged at the top of the dust cup 300 and the air inlet 410 of the motor 400 is located at the bottom of the motor 400, the three-way valve 510 can be arranged between the top of the dust cup 300 and the bottom of the motor 400. In this case, the dust cup 300, the three-way valve 510 and the motor 400 can be arranged along the axial direction of the housing 200 (see FIG. Figure 6 or Fig.14 As shown in FIG. 1 ). The dust cup 300, the three-way valve 510, and the motor 400 occupy a smaller space in the plane direction of the housing 200 as a whole, which is conducive to the miniaturization design of the housing 20. In addition, the connection path of the dust cup 300, the three-way valve 510, and the motor 400 is shorter, which is conducive to improving the connection strength and reliability of the three.

[0162] Combination Fig.15 and Fig.18 As shown, the three-way valve 510 may include a valve housing 511 and a valve core 512, and the valve core 512 is at least partially disposed in the valve housing 511. The valve housing 511 may include a first inlet 51111, a second inlet 51112 and an outlet 51113, the first inlet 51111 is communicated with the air outlet 330 of the dust cup 300, the second inlet 51112 is communicated with the dust collecting air duct 250, and the outlet 51113 is communicated with the air inlet 410 of the motor 400. The drive assembly 520 may be connected to the valve core 512, and the drive assembly 520 may cooperate with the triggering part 630 on the chassis of the base station 2. The triggering part 630 transmits a driving force to the drive assembly 520, so that the drive assembly 520 drives the valve core 512 to move.

[0163] For example, when the dust cup 300, the three-way valve 510 and the motor 400 are sequentially arranged along the axial direction of the housing 200, the first inlet 51111 and the outlet 51113 on the valve housing 511 can both extend along the axial direction of the housing 200, and the second inlet 51112 on the valve housing 511 can extend in a direction perpendicular to the axial direction of the housing 200. In this way, it is convenient to design and manufacture the valve housing 511, to connect the valve housing 511 with the dust cup 300 and the motor 400 located on the upper and lower sides thereof, and to connect the second inlet 51112 of the valve housing 511 with the dust collecting air duct 250 on the side of the dust cup 300. In addition, the air outlet 330 of the dust cup 300, the first inlet 51111 of the valve housing 511, the outlet 51113 of the valve housing 511 and the air inlet 410 of the motor 400 are connected in sequence along the axial direction of the casing 200. The air flow can flow through the dust cup 300, the three-way valve 510 and the motor 400 along the axial direction of the casing 200. The gas flow path is smoother, the gas flow rate can be increased, and the performance of the cleaning equipment 1 is improved.

[0164] Reference Fig.16 As shown, when the air duct conversion structure 500 is in the first state, the driving assembly 520 drives the valve core 512 to move to block the second inlet 51112 of the valve housing 511, and the first inlet 51111 of the valve housing 511 is connected to the outlet 51113 of the valve housing 511, while the second inlet 51112 of the valve housing 511 is not connected to the outlet 51113 of the valve housing 511. At this time, the three-way valve 510 connects the air outlet 330 of the dust cup 300 and the air inlet 410 of the motor 400, and makes the dust collection air duct 250 and the air inlet 410 of the motor 400 in a cut-off state (see Figure 6 As shown). Thus, the negative pressure generated by the operation of the motor 400 acts on the dust suction duct 240, and the airflow flows along the dust suction duct 240, so that the cleaning device 1 performs the cleaning work.

[0165] Reference Fig.17 As shown, when the air duct conversion structure 500 is in the second state, the driving assembly 520 drives the valve core 512 to move to block the first inlet 51111 of the valve housing 511, and the second inlet 51112 of the valve housing 511 is connected to the outlet 51113 of the valve housing 511, while the first inlet 51111 of the valve housing 511 is not connected to the outlet 51113 of the valve housing 511. At this time, the three-way valve 510 connects the dust collecting air duct 250 and the air inlet 410 of the motor 400, and makes the air outlet 330 of the dust collecting cup 300 and the air inlet 410 of the motor 400 in a cut-off state (see Fig.14 As shown). Thus, the negative pressure generated by the operation of the motor 400 acts on the dust collecting air duct 250, and the airflow flows along the dust collecting air duct 250, so that the cleaning system performs dust collecting work.

[0166] Reference Fig.16 or Fig.17 As shown, the driving assembly 520 may include a driving rod 521, which is rotatably connected to the valve core 512, and the driving rod 521 may be pushed by the trigger part 630 provided on the base station 2. When the cleaning device 1 performs cleaning work, the driving rod 521 is not subjected to external force, and the driving rod 521 causes the valve core 512 to block the second inlet 51112 of the valve housing 511, so that the air duct conversion structure 500 is in the first state, so as to realize the dust collection action of the cleaning device 1. When the cleaning device 1 cooperates with the base station 2, the driving rod 521 is pushed and moved by the trigger part 630 on the base station 2, and the driving valve core 512 moves to block the first inlet 51111 of the valve housing 511, so that the air duct conversion structure 500 switches to the second state, so as to realize the dust collection action of the cleaning system.

[0167] The top end of the driving rod 521 can be rotatably connected to the valve core 512, and the bottom end of the driving rod 521 can be provided with a push portion 52121, which extends out of the housing 200 of the cleaning device 1 (see Figure 8 As shown in FIG. 1 , the push portion 52121 can cooperate with the trigger portion 630 on the base station 2. In this way, the vertical space occupied by the driving rod 521 as a whole is small, which is beneficial to the spatial layout in the housing 200, and the push portion 52121 located at the bottom end of the driving rod 521 can be easily configured to extend outside the housing 200.

[0168] When the abutting portion 52121 at the bottom of the driving rod 521 is not subjected to force, the driving rod 521 keeps the valve core 512 in a state of blocking the second opening of the valve housing 511. When the abutting portion 52121 at the bottom of the driving rod 521 is pushed by the triggering portion 630 of the base station 2, the driving rod 521 moves and drives the valve core 512 to move to block the first opening of the valve housing 511.

[0169] Exemplarily, the driving rod 521 may be located on the side of the housing 200 facing the base station 2, and the triggering portion 630 on the base station 2 may protrude from the wall of the box 600 facing the cleaning device 1. In this way, the driving rod 521 is close to the box 600 of the base station 2, and the triggering portion 630 protrudes toward the housing 200 of the cleaning device 1, so that the pushing portion 52121 of the driving rod 521 is in contact with the triggering portion 630 of the base station 2, so as to achieve the cooperation between the driving rod 521 and the triggering portion 630 of the base station 2.

[0170] For example, the driving rod 521 can be arranged near the side of the housing 200, and the dust collecting duct 250 and the dust suction duct 240 are arranged side by side on the side of the driving rod 521. The pushing portion 52121 at the bottom end of the driving rod 521 can extend out from the side of the driving rod 521 toward the center of the housing 200 (see Figure 8 The push portion 52121 is exposed in the avoidance groove 260 provided on the housing 200 (see Figure 5As shown). The trigger part 630 on the chassis of the base station 2 can be arranged near the vertical center of the chassis, and the trigger part 630 can be located below the dust collection port 610 on the chassis. In this way, the trigger part 630 of the chassis is adapted to the height of the push part 52121 at the bottom end of the driving rod 521, so that the push part 52121 of the driving rod 521 is easy to abut against the trigger part 630 of the chassis. In addition, there is enough space below the dust collection port 610 of the chassis to set the trigger part 630, and the trigger part 630 will not interfere with the dust collection port 610 and the exhaust port 620 located above it.

[0171] Continue to refer to Fig.16 or Fig.17 As shown, the driving assembly 520 may further include a reset member 522, and the reset member 522 is connected to the driving rod 521. The reset member 522 is used to provide a reset force to drive the driving rod 521 to reset. When the driving rod 521 is not subjected to an external force from the triggering portion 630 of the base station 2, the reset force provided by the reset member 522 can restore and maintain the driving rod 521 in the initial position, so as to ensure that the air duct conversion structure 500 can be stably and reliably in the first state, and ensure the stability and reliability of the cleaning device 1 when performing cleaning work.

[0172] Specifically, after the cleaning device 1 is separated from the base station 2, the driving rod 521 can return to the initial position under the action of the restoring force provided by the restoring member 522, so that the air duct conversion structure 500 switches from the second state to the first state. When the cleaning device 1 performs cleaning work, the restoring force provided by the restoring member 522 can keep the driving rod 521 in the initial position, so that the air duct conversion structure 500 remains in the first state.

[0173] As an example, the reset member 522 may be a first elastic member 522a sleeved outside the driving rod 521, and the first elastic member 522a may be a compression spring or a torsion spring. Figure 8 As shown in FIG. 2 , the first elastic member 522 a abuts against the limiting portion 270 . For example, the top end of the first elastic member 522 a abuts against the limiting portion 270 .

[0174] When the cleaning device 1 works independently, the driving rod 521 remains in the initial position under the elastic force of the first elastic member 522a and the weight of the driving rod 521 itself, so that the air duct conversion structure 500 is maintained in the first state. When the cleaning device 1 cooperates with the base station 2, the triggering part 630 of the base station 2 pushes upward against the pushing part 52121 at the bottom of the driving rod 521, the driving rod 521 moves upward, the first elastic member 522a is compressed, and the driving rod 521 drives the valve core 512 to rotate, so that the air duct conversion structure 500 is switched to the second state. When the cleaning device 1 is removed from the base station 2, the driving rod 521 moves downward to the initial position under the elastic force of the first elastic member 522a and the weight of the driving rod 521 itself, so that the air duct conversion structure 500 is switched to the first state.

[0175] In other examples, the reset member 522 can also select magnetic parts, hydraulic rods and other components, and can rely on magnetic force, hydraulic pressure and other forces to help the driving rod 521 return and remain in the initial position, so that the air duct conversion structure 500 can be smoothly switched from the second state to the first state.

[0176] Continue to refer to Fig.16 or Fig.17 As shown, the driving rod 521 may include a push rod 5211 and a gear rod 5212, and the gear rod 5212 is connected to the bottom of the push rod 5211. The push rod 5211 may be rotatably connected to the valve core 512, for example, the top end of the push rod 5211 is rotatably connected to the valve core 512. The push portion 52121 is provided on the gear rod 5212, for example, the push portion 52121 is provided at the bottom end of the gear rod 5212, and the push portion 52121 on the gear rod 5212 abuts against the trigger portion 630 of the base station 2.

[0177] At this time, the push rod 5211 can be a thin rod with a small cross-sectional area (e.g., diameter), and the push rod 5211 occupies a small space, which is convenient for the spatial layout in the housing 200. For example, the cross-sectional area of ​​the dust collection duct 250 and the dust suction duct 240 beside the push rod 5211 can be increased, and the cleaning device 1 has a large flow area in both dust suction and dust collection processes, which can improve the dust suction and dust collection effects of the cleaning system. The gear rod 5212 can be a thick rod with a large cross-sectional area (e.g., diameter) to enhance the overall structural strength of the driving rod 521. In addition, a diameter-changing portion is formed between the gear rod 5212 and the push rod 5211, and the bottom end of the first elastic member 522a can abut against the diameter-changing portion to position the first elastic member 522a.

[0178] Fig.19 for Fig.18 The schematic diagram of the structure of the valve core of the three-way valve. Fig.19As shown, the valve core 512 of the three-way valve 510 may include a baffle 5121, a linkage shaft 5122 and a transmission part 5123, and the baffle 5121, the linkage shaft 5122 and the transmission part 5123 are connected in sequence, in other words, the baffle 5121 and the transmission part 5123 are both connected to the linkage shaft 5122. Exemplarily, the valve core 512 may be an integrally formed part, that is, the baffle 5121, the linkage shaft 5122 and the transmission part 5123 may be an integrally formed structure.

[0179] Combination Fig.18 and Fig.19 As shown, the transmission part 5123 of the valve core 512 is located outside the valve housing 511, and one end of the transmission part 5123 away from the baffle 5121 is rotatably connected to the driving rod 521, so that the driving rod 521 moves up and down to drive the transmission part 5123 to rotate. The valve housing 511 is provided with a mounting hole at the connection between the first inlet 51111 and the second inlet 51112, and the linkage shaft 5122 of the valve core 512 is inserted into the mounting hole (see Fig.16 or Fig.17 ). The linkage shaft 5122 of the valve core 512 extends out of the valve housing 511 to be connected to the transmission part 5123 located outside the valve housing 511, so as to drive the linkage shaft 5122 to rotate through the transmission part 5123. In addition, the linkage shaft 5122 serves as the rotation axis of the baffle plate 5121, and the baffle plate 5121 is turned over by the linkage shaft 5122 rotating in the mounting hole. The baffle plate 5121 of the valve core 512 is located in the valve housing 511, and the connection state of the three-way valve 510 is switched by turning over the baffle plate 5121.

[0180] The driving rod 521 moves up and down, driving the transmission part 5123 of the valve core 512 to rotate, so that the linkage shaft 5122 of the valve core 512 rotates in the installation hole, and then drives the baffle 5121 of the valve core 512 to flip in the valve housing 511. When the driving rod 521 is not subjected to external force, the driving rod 521 remains in the initial position under the elastic force of the first elastic member 522a and the gravity of the driving rod 521. At this time, the baffle 5121 of the valve core 512 is in the initial position of blocking the second inlet 51112 of the valve housing 511 (see Fig.16 When the driving rod 521 is pushed by the triggering part 630 of the base station 2, the driving rod 521 moves upward and drives the baffle 5121 of the valve core 512 to flip to a position to block the first inlet 51111 of the valve housing 511 (see Fig.17 When the driving rod 521 is separated from the triggering part 630 of the base station 2, under the action of the elastic force of the first elastic member 522a and the gravity of the driving rod 521, the driving rod 521 moves downward and drives the baffle 5121 of the valve core 512 to flip to a position to block the second inlet 51112 of the valve housing 511.

[0181] Reference Fig.18As shown, in some embodiments, the valve housing 511 may include a valve body 5111 and a valve cover 5112. The first inlet 51111, the second inlet 51112 and the outlet 51113 may all be formed on the valve body 5111. The valve body 5111 may also be provided with an installation port (not shown in the figure), which may be located on the side wall of the valve body 5111, and the installation port is spaced from the second inlet 51112. The installation port on the valve body 5111 is used for the baffle 5121 of the valve core 512 to pass through, so as to install the baffle 5121 of the valve core 512 in the valve housing 511. The valve cover 5112 is covered on the installation port of the valve body 5111, and the installation port is blocked by the cover plate to prevent the installation port from leaking outward.

[0182] On this basis, a stopper 51121 may be further provided on the outer wall surface of the valve cover 5112, and the stopper 51121 protrudes on the outer wall surface of the valve cover 5112. When the cleaning device 1 cooperates with the base station 2, the triggering part 630 of the base station 2 pushes against the pushing part 52121 of the driving rod 521, and the driving rod 521 moves upward and drives the baffle 5121 of the valve core 512 to flip. When the baffle 5121 flips to block the first inlet 51111, the transmission part 5123 of the valve core 512 abuts against the stopper 51121 on the outer wall surface of the valve cover 5112 to limit the driving rod 521 at this position, ensuring that the air duct conversion structure 500 is stably and reliably in the second state.

[0183] Continue to refer to Fig.18 The valve core 512 may also be provided with a pulley 5124 at one end of the transmission part 5123 away from the baffle 5121, and a slide groove 52111 may be provided at the top of the driving rod 521 to match it (see Fig.16 or Fig.17 When the driving rod 521 drives the transmission part 5123 of the valve core 512 to rotate, the pulley 5124 sleeved on the transmission part 5123 can roll in the slide groove 52111 to reduce the friction between the transmission part 5123 and the driving rod 521, avoid interference between the driving rod 521 and the transmission part 5123, ensure the flexible rotation of the transmission part 5123, and ensure the smooth and accurate movement of the air duct conversion structure 500.

[0184] Among them, in the direction perpendicular to the axial direction of the housing 200, that is, in the plane direction of the housing 200, the extension length of the slide groove 52111 on the driving rod 521 can be greater than the diameter of the pulley 5124 sleeved on the transmission part 5123 of the valve core 512, so as to reserve a certain horizontal movement space for the pulley 5124. In this way, when the driving rod 521 drives the valve core 512 to move, the pulley 5124 sleeved on the transmission part 5123 of the valve core 512 can translate along the slide groove 52111 of the driving rod 521, so as to reduce the amplitude of the translation of the driving rod 521, so that the driving rod 521 can move along the axial direction of the housing 200, so as to improve the movement trajectory accuracy of the driving rod 521, and enhance the stability and reliability of the driving rod 521.

[0185] Reference Fig.19 As shown, there may be an angle between the transmission part 5123 of the valve core 512 and the baffle 5121. In this way, the moving tracks of the transmission part 5123 and the baffle 5121 do not overlap, and the position and moving area of ​​the transmission part 5123 can be flexibly designed, and the position of the transmission part 5123 can be designed according to the installation area of ​​the driving rod 521 in the housing 200. In addition, the transmission part 5123 and the baffle 5121 are avoided from being located in the same plane, and the valve core 512 occupies a smaller space as a whole, which facilitates the arrangement of the air duct conversion structure 500 in the housing 200.

[0186] Among them, the angle between the transmission part 5123 of the valve core 512 and the baffle 5121 can be greater than or equal to 90°, and the angle between the transmission part 5123 and the baffle 5121 can be less than 180°. In this way, in the process of the valve core 512 flipping between the position of blocking the second opening and the position of blocking the first opening, the transmission part 5123 mainly moves in the axial direction of the housing 200, and the swing amplitude of the transmission part 5123 in the plane direction of the housing 200 is relatively small. In this way, in the process of the driving rod 521 driving the transmission part 5123 to rotate, the driving rod 521 can be controlled to move mainly in the axial direction of the housing 200, avoiding the driving rod 521 from having obvious movement in the plane direction of the housing 200, so as to reduce the movement space required by the driving rod 521 and improve the stability and reliability of the movement of the driving rod 521.

[0187] For example, the angle between the transmission portion 5123 of the valve core 512 and the baffle 5121 can be 100°, 110°, 120°, 130°, 140°, 150°, etc.

[0188] In addition, the edge of the baffle 5121 of the valve core 512 may be provided with a sealing portion 51211, which may be provided on both side surfaces of the baffle 5121, and the sealing portion 51211 surrounds the baffle 5121. In this way, whether the baffle 5121 is turned over to block the second inlet 51112 of the valve housing 511, or the baffle 5121 is turned over to block the first inlet 51111 of the valve housing 511 (see Fig.16 and Fig.17 ), the baffle 5121 is in close contact with the inner wall of the valve housing 511 through the sealing portion 51211, which can ensure that the baffle 5121 seals the second inlet 51112 (or the first inlet 51111) tightly to improve the dust suction performance and dust collection performance of the cleaning device 1.

[0189] In addition to the aforementioned three-way valve 510 , in other embodiments, the valve core 512 of the three-way valve 510 may also adopt a spherical valve core 512 , a multi-stage valve core 512 , etc., and the valve housing 511 of the three-way valve 510 may be designed to match the structure of the valve core 512 .

[0190] Among them, when the valve core 512 of the three-way valve 510 adopts a spherical valve core 512, a "T-shaped" channel can be set in the spherical valve core 512, and the two ends of the vertically through channel are respectively used to connect with the air outlet 330 of the dust cup 300 and the air inlet 410 of the motor 400, and the two ends of the vertically connected channel are respectively used to connect with the air inlet 410 of the dust collecting duct 250 and the motor 400.

[0191] When the valve core 512 of the three-way valve 510 adopts a multi-stage valve core 512, the valve core 512 may include a plurality of valve plates that are connected in rotation in sequence, and the adjacent valve plates are connected, for example, by hinges, and the valve plates can rotate relative to each other. The end of the valve core 512 is connected to the driving rod 521. The valve housing 511 may have a platform from which the valve core 512 extends and a channel for the valve core 512 to retract. After the valve core 512 retracts, the dust collecting air duct 250 is closed and the dust suction air duct 240 is opened. After the driving rod 521 pushes the valve core 512 out of the channel, the valve core 512 closes the dust suction air duct 240 and opens the dust collecting air duct 250.

[0192] In addition to using the driving assembly 520 to move up and down to drive the valve core 512 of the three-way valve 510 to move, the air duct conversion structure 500 can also use a track-changing air duct, which is movably connected between the air outlet 330 of the dust cup 300 and the air inlet 410 of the motor 400, and the track-changing air duct can move between a first position and a second position. For example, the track-changing air duct can move in a direction perpendicular to the axial direction of the housing 200, or in other words, the track-changing air duct can move in the plane direction of the housing 200 to achieve the switching of the track-changing air duct between the first position and the second position.

[0193] For example, a control component may be provided on the base station 2 or the cleaning device 1, and the control component may be used to automatically control the track-changing air duct to switch between the first position and the second position. Alternatively, a pressing component such as a button or a pressure rod may be provided on the cleaning device 1, and the user may press the pressing component to manually control the track-changing air duct to switch between the first position and the second position.

[0194] Among them, the track-changing air duct may include a first air duct and a second air duct separated from each other. When the track-changing air duct is in the first position, the first air duct is connected between the air outlet 330 of the dust cup 300 and the air inlet 410 of the motor 400. At this time, the negative pressure generated by the operation of the motor 400 acts on the dust collection air duct 240, and the air flow flows along the dust collection air duct 240, so that the cleaning device 1 performs dust collection. When the track-changing air duct is in the second position, the second air duct is connected between the dust collection air duct 250 and the air inlet 410 of the motor 400. At this time, the negative pressure generated by the operation of the motor 400 acts on the dust collection air duct 250, and the air flow flows along the dust collection air duct 250, so that the cleaning system performs dust collection.

[0195] When the track-changing air duct moves along the plane direction of the housing 200 to switch between the first position and the second position, the first air duct and the second air duct in the track-changing air duct can be arranged side by side in a direction perpendicular to the axial direction of the dust cup 300, or in other words, the first air duct and the second air duct can be arranged side by side in the plane direction of the housing 200. In this way, it is convenient to install the track-changing air duct between the air outlet 330 of the dust cup 300 and the air inlet 410 of the motor 400, and it is easy to control the movement of the track-changing air duct. In addition, it is convenient for the two ends of the first air duct to dock with the air outlet 330 of the dust cup 300 and the air inlet 410 of the motor 400, and it is also convenient for the two ends of the second air duct to dock with the dust collecting air duct 250 and the air inlet 410 of the motor 400.

[0196] Among them, the first air duct of the track-changing air duct can extend along the axial direction of the dust cup 300, and the first air duct is open at both axial ends. When the first air duct is connected with the air outlet 330 of the dust cup 300 and the air inlet 410 of the motor 400, the air outlet 330 of the dust cup 300, the first air duct and the air inlet 410 of the motor 400 can be connected in sequence along the axial direction of the housing 200. In this way, when the cleaning device 1 performs vacuuming, the airflow can flow through the dust cup 300, the first air duct and the motor 400 in sequence along the axial direction of the housing 200, and the airflow path is smoother, which can increase the flow rate of the airflow and improve the vacuuming effect of the cleaning device 1.

[0197] Since the extension direction of the dust collecting air duct 250 and the air inlet 410 of the motor 400 are staggered in the axial direction of the housing 200, the air inlet end and the air outlet end of the second air duct of the track-changing air duct can be staggered in the axial direction of the dust collecting cup 300, so that when the air inlet end of the second air duct is connected with the dust collecting air duct 250 accordingly, the air outlet end of the second air duct can be connected with the air inlet 410 of the motor 400 accordingly.

[0198] Exemplarily, the second air duct of the track change air duct may include a first section and a second section, the first section and the second section may be interconnected and have an angle. The air inlet end of the second air duct is an end of the first section away from the second section, and the air outlet end of the second air duct is an end of the second section away from the first section.

[0199] By providing the first section and the second section that are connected in sequence and have an angle to form the second air duct, it is easier to connect the end of the first section with the dust collecting air duct 250, and it is also easier to connect the end of the second section with the air inlet 410 of the motor 400. In addition, it is helpful to reduce the overall volume of the track-changing air duct, and the track-changing air duct occupies a small space and is easy to install.

[0200] Exemplarily, in the second air duct of the track-changing air duct, the first section may extend along the axial direction of the housing 200, and the second section may extend in a direction perpendicular to the axial direction of the housing 200, or in other words, the second section may extend along the plane direction of the housing 200. In this way, the air inlet end of the first section may be a horizontal opening, and the air outlet end of the second section may also be a horizontal opening, which is convenient for the design and processing of the track-changing air duct, and also convenient for the second air duct to be connected with the air inlet 410 of the dust collecting air duct 250 and the motor 400.

[0201] Fig. 20 This is a partial exploded structural diagram of the dust cup provided in the embodiment of the present application. Fig. 20 As shown, in some embodiments, the dust discharge port 320 of the dust cup 300 may also be covered with a dust discharge cover 321 , and the dust discharge cover 321 is rotatably connected to the dust cup 300 .

[0202] When the air duct conversion structure 500 is in the first state and the cleaning device 1 is performing cleaning work, the dust exhaust cover 321 blocks the dust exhaust port 320 (see Fig.11 At this time, the dust outlet 320 of the dust cup 300 is not connected to the dust collecting air duct 250, which can prevent the airflow in the dust cup 300 from flowing out through the dust outlet 320, avoid airflow turbulence in the dust cup 300, and ensure the stability of the dust collection process of the cleaning device 1.

[0203] When the air duct conversion structure 500 is in the second state and the cleaning system is performing dust collection, under the negative pressure in the dust collection air duct 250, the dust discharge cover 321 rotates to open the dust discharge port 320 (see Fig.13At this time, the dust discharge port 320 of the dust cup 300 is connected to the dust collection air duct 250, and the dust in the dust cup 300 can be discharged from the dust discharge port 320 along with the air flow, so that the dust in the dust cup 300 can be collected in the base station 2.

[0204] Reference Fig. 20 As shown, a second elastic member 322 may be further provided between the dust cover 321 and the dust cup 300, and the second elastic member 322 may generate an elastic force toward the dust cup 300 so that the dust cover 321 is closely attached to the dust cup 300. That is to say, under the action of the elastic force of the second elastic member 322 and the weight of the dust cover 321 itself, the dust cover 321 is maintained at a position blocking the dust discharge port 320. Under the action of the air pressure generated by the negative pressure in the dust collecting air duct 250, the dust cover 321 overcomes the elastic force of the second elastic member 322 and its own weight and rotates to a position opening the dust discharge port 320. When the negative pressure in the dust collecting air duct 250 is eliminated, the dust cover 321 may return to a position blocking the dust discharge port 320 under the action of the elastic force of the second elastic member 322 and its own weight. Of course, the dust cover 321 may also be maintained at a position blocking the dust discharge port 320 only by its own weight. The negative pressure in the dust collecting air duct 250 causes the dust discharge cover 321 to overcome gravity and rotate to a position to open the dust discharge port 320. When the negative pressure in the dust collecting air duct 250 is eliminated, the dust discharge cover 321 returns to a position to block the dust discharge port 320 under the action of gravity.

[0205] Fig.21 This is a partial exploded structural diagram of the cleaning device provided in the embodiment of the present application. Fig.21 As shown, similar to the dust cover 321 provided at the dust outlet 320 of the dust cup 300, a movable air return cover 221 may also be provided at the air return outlet 220 of the housing 200, and the air return cover 221 may be rotatably connected to the housing 200, for example. The air return outlet 220 of the housing 200 is blocked by the air return cover 221, thereby shielding the opening on the appearance of the cleaning device 1, and improving the appearance of the cleaning device 1.

[0206] When the air duct conversion structure 500 is in the first state and the cleaning device 1 performs cleaning work, the return air cover 221 blocks the return air port 220 (see Figure 6 When the air duct conversion structure 500 is in the second state and the cleaning system is performing dust collection, under the negative pressure in the dust collection air duct 250, the return air cover 221 rotates to open the return air port 220 (see Fig.14 As shown), the exhaust port 620 of the base station 2 is connected to the dust collecting duct 250 through the return air port 220 on the casing 200. The air flow in the base station 2 can flow back into the dust collecting duct 250 and then be discharged from the exhaust port 230 of the cleaning device 1.

[0207] Reference Fig.21As shown, a third elastic member 222 may be further provided between the air return cover 221 and the housing 200, and the third elastic member 222 may generate an elastic force toward the outside of the housing 200, so that the air return cover 221 is closely attached to the housing 200. That is, under the elastic force of the third elastic member 222 and the gravity of the air return cover 221, the air return cover 221 is kept at a position blocking the air return port 220. Under the negative pressure in the dust collecting air duct 250, the air return cover 221 overcomes the elastic force of the third elastic member 222 and its own gravity, and rotates to a position opening the air return port 220.

[0208] Of course, the air return cover 221 can also rely solely on its own gravity to remain in the position of blocking the air return port 220. The negative pressure in the dust collection air duct 250 causes the air return cover 221 to overcome gravity and rotate to a position that opens the air return port 220. When the negative pressure in the dust collection air duct 250 is eliminated, the air return cover 221 returns to the position of blocking the air return port 220 under the action of gravity.

[0209] Fig. 22 This is a cross-sectional view of the dust cup provided in the embodiment of the present application. Fig. 22 As shown, in order to realize the filtering function of the dust cup 300, at least one filter 340 may be provided in the dust cup 300. After the dust enters the dust cup 300 from the dust suction air duct 240, the dust is confined in the dust cup 300 under the filtering effect of the filter 340, while the air can pass through the filter 340 and flow out of the dust cup 300.

[0210] In this embodiment, a plurality of filters 340 may be provided in the dust cup 300, and each filter 340 may be arranged in sequence along the axial direction of the dust cup 300. Under the negative pressure generated by the motor 400, after the airflow mixed with dust enters the dust cup 300 from the dust inlet 310, the airflow flows upward roughly along the axial direction of the dust cup 300. The airflow passes through each filter 340 in sequence, and under the multiple filtering effects of each filter 340, the dust in the airflow can be effectively filtered, and the dust can be more thoroughly blocked in the dust cup 300, so as to obtain air with higher cleanliness. The clean air flows into the motor 400 from the air outlet 330 of the dust cup 300, and finally flows out from the exhaust port 230 of the housing 200.

[0211] Reference Fig. 22 As shown, three filters 340 may be provided in the dust cup 300 along its axial direction, and the first filter 341, the second filter 342 and the third filter 343 are arranged from the bottom of the dust cup 300 to the top of the dust cup 300. Among them, the first filter 341 may be a flat filter net, the second filter 342 may be a multi-cone filter net, and the third filter 343 may be a filter cotton.

[0212] Combination Figure 7 and Fig. 22As shown, when a plurality of filters 340 are sequentially arranged in the axial direction in the dust cup 300, the dust inlet 310 on the side wall of the dust cup 300 can be arranged below at least part of the filter 340. In this way, after the airflow enters the dust cup 300 from the dust inlet 310, it will inevitably pass through the filter 340 in the process of flowing toward the air outlet 420 at the top of the dust cup 300, so as to ensure that the filter 340 can filter the dust in the airflow.

[0213] For example, along the axial direction of the dust cup 300, the dust inlet 310 on the side wall of the dust cup 300 can be located below the lowest filter element 340, so that the airflow entering the dust cup 300 can pass through all the filters 340 in sequence to ensure the filtering effect of the dust cup 300. Specifically, taking the above-mentioned dust cup 300 having three filters 340 as an example, the dust inlet 310 can be located below the first filter element 341.

[0214] When the driving assembly 520 is moved up and down to drive the valve core 512 of the three-way valve 510 to move, an air inlet 350 can also be opened at the upper part of the dust cup 300 (see Figure 7 As shown in FIG. 1 ), the air inlet 350 may be located on the side wall of the dust cup 300, and the air inlet 350 corresponds to the filter element 340 disposed in the dust cup 300. A blocking portion 52112 may be disposed on the driving rod 521 of the driving assembly 520, and the blocking portion 52112 may protrude toward the dust cup 300 (see FIG. 1 ). Fig.15 shown).

[0215] When the cleaning device 1 performs dust collection and the air duct conversion structure 500 is in the first state, the blocking portion 52112 on the driving rod 521 can correspond to the air inlet 350 on the dust cup 300, and the blocking portion 52112 of the driving rod 521 blocks the air inlet 350 of the dust cup 300 (see Fig.11 As shown), the dust cup 300 is prevented from leaking air outward from the air inlet 350, thereby ensuring that the cleaning device 1 can reliably perform the dust collection work.

[0216] When the cleaning system performs dust collection and the air duct conversion structure 500 is in the second state, the driving rod 521 moves upward, and the blocking portion 52112 on the driving rod 521 is staggered from the air inlet 350 on the dust cup 300, and the air inlet 350 of the dust cup 300 is exposed. At this time, under the negative pressure of the motor 400, the airflow can enter the dust cup 300 from the air inlet 350 of the dust cup 300. In the process of the airflow entering the dust cup 300 from the air inlet 350 of the dust cup 300, the airflow will pass through the filter element 340 in the dust cup 300, and the dust attached to the surface of the filter element 340 can be cleaned to clean the filter element 340 and ensure the cleanliness of the filter element 340. Thereby, the adsorption performance of the filter element 340 is enhanced, the filtering effect of the dust cup 300 is improved, and the dust collection performance of the cleaning device 1 is improved.

[0217] The surface of the blocking portion 52112 of the driving rod 521 may also be provided with a flexible layer 52113, and the flexible layer 52113 is attached to the surface of the blocking portion 52112 on one side facing the dust cup 300 (see Fig.15 When the blocking portion 52112 of the driving rod 521 blocks the air inlet 350 of the dust cup 300, the flexible layer 52113 on the surface of the blocking portion 52112 can be tightly fitted with the outer wall surface of the outer periphery of the air inlet 350 to ensure that the blocking portion 52112 of the driving rod 521 blocks the air inlet 350 of the dust cup 300 tightly, thereby preventing the dust cup 300 from leaking.

[0218] Exemplarily, the flexible layer 52113 on the surface of the blocking portion 52112 can be consistent with the shape and size of the surface of the blocking portion 52112, and the edge of the flexible layer 52113 completely overlaps with the edge of the blocking portion 52112. Alternatively, the surface size of the flexible layer 52113 can be larger than the surface size of the blocking portion 52112, and the edge of the flexible layer 52113 can extend beyond the edge of the blocking portion 52112. Thus, the flexible layer 52113 can have a sufficient surface area to ensure that the flexible layer 52113 can cover the outer wall surface of the periphery of the air inlet 350 of the dust cup 300, and ensure that the blocking portion 52112 can seal the air inlet 350 tightly. In addition, there is a sufficient connection area between the flexible layer 52113 and the blocking portion 52112, which can ensure that the flexible layer 52113 and the blocking portion 52112 are reliably connected.

[0219] Combination Figure 7 and Fig. 22 As shown, when the dust cup 300 is not provided with a plurality of filters 340 in sequence along the axial direction, the air inlet 350 of the dust cup 300 corresponds to the filter 340 located at the top of the dust cup 300. Specifically, taking the above-mentioned dust cup 300 having three filters 340 as an example, the air inlet 350 can correspond to the third filter 343.

[0220] With such a configuration, when the cleaning system performs dust collection and the air duct conversion structure 500 is in the second state, the airflow enters the dust cup 300 from the air inlet 350 of the dust cup 300, and then passes through each filter 340 in the dust cup 300 in sequence. The airflow can clean the dust attached to the surface of each filter 340, and has a cleaning effect on all the filters 340 in the dust cup 300. Therefore, the dust cup 300 has a better cleaning effect, the filtering effect of the dust cup 300 can be further improved, and the dust collection performance of the cleaning device 1 can be improved.

[0221] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0222] It should be noted that the embodiments represented by "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments that are explicitly or not explicitly described.

[0223] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cleaning device that can work with a base station, characterized in that: The cleaning equipment comprises: The housing has a dust outlet on one side facing the base station; A dust collecting cup is arranged on the housing, the dust collecting cup is provided with a dust inlet and a dust outlet, and the dust outlet is connected with the dust outlet; A dust suction duct is arranged in the housing and communicated with the dust inlet; A dust collecting air duct is arranged in the housing and is separated from the dust suction air duct, and the dust collecting air duct is connected to the dust exhaust port; A motor is disposed in the housing and above the dust cup; An air duct conversion structure is arranged between the air outlet of the dust cup and the air inlet of the motor, and is configured to switch between a first state and a second state; when in the first state, the air duct conversion structure connects the air outlet of the dust cup and the air inlet of the motor; when in the second state, the air duct conversion structure connects the dust collecting air duct and the air inlet of the motor. At this time, the motor makes the airflow entering from the dust suction port of the floor brush flow along the dust collecting air duct, and makes the dust in the dust cup enter the base station through the dust exhaust port and the dust outlet with the airflow.

2. The cleaning device according to claim 1, characterized in that The air duct conversion structure comprises a three-way valve and a driving assembly, wherein the three-way valve comprises a valve housing and a valve core, wherein the valve core is at least partially disposed in the valve housing, and the driving assembly drives the valve core to move; Wherein, the valve housing includes a first inlet, a second inlet and an outlet, the first inlet is connected to the dust cup, the second inlet is connected to the dust collecting air duct, and the outlet is connected to the motor; when the air duct conversion structure is in the first state, the drive component drives the valve core to block the second inlet; when the air duct conversion structure is in the second state, the drive component drives the valve core to block the first inlet.

3. The cleaning device according to claim 2, characterized in that: The driving assembly includes a driving rod, which is rotatably connected to the valve core and is used to be pushed by the base station to move, thereby pushing the valve core to rotate, so that the air duct conversion structure switches from the first state to the second state.

4. The cleaning device according to claim 3, characterized in that: The top end of the driving rod is rotatably connected to the valve core, and the bottom end of the driving rod is provided with a pushing portion, which extends out of the housing and is used to be pushed by the base station.

5. The cleaning device according to claim 3, characterized in that: The driving assembly further includes a reset member, which is connected to the driving rod and is used to drive the driving rod to reset so that the air duct conversion structure switches from the second state to the first state.

6. The cleaning device according to claim 5, characterized in that The driving rod comprises a push rod and a shift rod, wherein the shift rod is connected to the bottom of the push rod, the push rod is rotatably connected to the valve core, and the shift rod is used to be pushed by the base station; Wherein, the reset member is a first elastic member sleeved on the outside of the push rod, and the first elastic member abuts against a limiting portion arranged in the housing.

7. The cleaning device according to any one of claims 3 to 6, characterized in that: The valve core includes a baffle, a linkage shaft and a transmission part which are connected in sequence; The baffle is located in the valve housing, the linkage shaft is inserted into a mounting hole provided between the first inlet and the second inlet, and the linkage shaft extends out of the valve housing, the transmission part is located outside the valve housing, and one end of the transmission part away from the baffle is rotatably connected to the driving rod.

8. The cleaning device according to claim 7, characterized in that An angle is formed between the transmission part and the baffle.

9. The cleaning device according to claim 8, characterized in that An included angle between the transmission part and the baffle is greater than or equal to 90° and less than 180°.

10. The cleaning device according to claim 7, characterized in that A pulley is sleeved on one end of the transmission part away from the baffle, and a sliding groove is provided on the driving rod, and the pulley slides along the sliding groove.

11. The cleaning device according to claim 10, characterized in that In a direction perpendicular to the axial direction of the housing, the extension length of the slide groove is greater than the diameter of the pulley; The pulley translates along the slide slot to enable the driving rod to move along the axial direction of the housing.

12. The cleaning device according to any one of claims 2 to 6, characterized in that: The valve housing comprises a valve body and a valve cover, a side wall of the valve body is provided with a mounting opening, and the valve cover is covered on the mounting opening; The installation opening is used for the valve core to pass through, so that the valve core is at least partially located in the valve housing.

13. The cleaning device according to claim 12, characterized in that A stopper is provided on the outer wall surface of the valve cover, and when the air duct conversion structure is in the second state, the valve core abuts against the stopper.

14. The cleaning device according to any one of claims 2 to 6, characterized in that: The three-way valve is located between the top of the dust cup and the motor, and the dust cup, the three-way valve and the motor are arranged along the axial direction of the housing.

15. The cleaning device according to claim 14, characterized in that The first inlet and the outlet both extend in an axial direction of the housing, and the second inlet extends in a direction perpendicular to the axial direction of the housing.

16. The cleaning device according to any one of claims 2 to 6, characterized in that: An air inlet is also provided on the upper portion of the dust cup, and the air inlet corresponds to a filter element provided in the dust cup; The driving assembly is provided with a blocking portion, which protrudes toward the dust cup; when the air duct conversion structure is in the first state, the blocking portion blocks the air inlet; when the air duct conversion structure is in the second state, the blocking portion is staggered with the air inlet.

17. The cleaning device according to claim 16, characterized in that A plurality of filter elements are sequentially arranged along the axial direction of the dust cup, and the air inlet corresponds to the filter element located at the top of the dust cup.

18. The cleaning device according to claim 16, characterized in that A flexible layer is provided on a surface of the sealing portion facing the dust cup, and an edge of the flexible layer completely overlaps with an edge of the sealing portion, or an edge of the flexible layer extends beyond the edge of the sealing portion.

19. The cleaning device according to claim 1, characterized in that The air duct conversion structure includes a track-changing air duct, and the track-changing air duct is movably connected between the air outlet of the dust cup and the air inlet of the motor; the track-changing air duct includes a first air duct and a second air duct separated from each other, and the track-changing air duct can be moved between a first position and a second position; When the track-changing air duct is located at the first position, the first air duct is connected between the air outlet of the dust collecting cup and the air inlet of the motor; when the track-changing air duct is located at the second position, the second air duct is connected between the dust collecting air duct and the air inlet of the motor.

20. The cleaning device according to claim 19, characterized in that The first air duct and the second air duct are arranged side by side along a direction perpendicular to the axial direction of the dust cup.

21. The cleaning device according to claim 20, characterized in that The first air duct extends along the axial direction of the dust cup, and both axial ends of the first air duct are open; In the axial direction of the dust cup, the air inlet end of the second air duct and the air outlet end of the second air duct are staggered with each other.

22. The cleaning device according to claim 21, characterized in that The second air duct includes a first section and a second section which are interconnected and have an angle, an air inlet end of the second air duct is an end of the first section away from the second section, and an air outlet end of the second air duct is an end of the second section away from the first section.

23. The cleaning device according to any one of claims 1 to 6, characterized in that: The dust suction air duct and the dust collection air duct both extend along the axial direction of the housing, and the dust inlet and the dust discharge port are staggered with each other in the axial direction of the dust collecting cup.

24. The cleaning device according to claim 23, characterized in that The bottom end of the dust discharge port is flush with the inner bottom wall of the dust cup; or, the dust discharge port is at least partially located on the bottom wall of the dust cup.

25. The cleaning device according to claim 24, characterized in that Along the axial direction of the dust cup, the dust inlet is located above the dust outlet, and the dust inlet is located below at least a portion of the filter element disposed in the dust cup.

26. The cleaning device according to any one of claims 1 to 6, characterized in that: The dust discharge port is provided with a dust discharge cover, the dust discharge cover is rotatably connected to the dust collecting cup, and a second elastic member is provided between the dust discharge cover and the dust collecting cup; When the air duct conversion structure is in the first state, the elastic force of the second elastic member can cause the dust exhaust cover to block the dust exhaust port; when the air duct conversion structure is in the second state, the dust exhaust cover opens the dust exhaust port.

27. The cleaning device according to any one of claims 1 to 6, characterized in that: An air return port is also provided on a side of the housing facing the base station. The air return port is communicated with the dust collecting air duct, and the air return port is located above the dust outlet.

28. The cleaning device according to claim 27, characterized in that The air return port is provided with a movable air return cover; When the air duct conversion structure is in the first state, the air return cover blocks the air return port; when the air duct conversion structure is in the second state, the air return cover opens the air return port.

29. A base station, used to cooperate with the cleaning device according to any one of claims 1 to 28, characterized in that: The base station comprises: The box body has a side wall facing the cleaning device and is provided with a dust collecting port, the dust collecting port being used to be connected to a dust outlet of the cleaning device; The dust collecting chamber is arranged in the box body and is communicated with the dust collecting port.

30. The base station according to claim 29, characterized in that Also includes: The triggering part is arranged on the box body and is used for triggering the air duct conversion structure of the cleaning device to convert from the first state to the second state.

31. The base station according to claim 30, characterized in that The trigger part protrudes from a side wall of the box body facing the cleaning device, and the trigger part is located below the dust collecting port, and the trigger part is used to push against the driving rod of the air duct conversion structure.

32. The base station according to any one of claims 29 to 31, characterized in that: An exhaust port is also provided on a side wall of the box body facing the cleaning device. The exhaust port is located above the dust collecting port and between the top wall of the dust collecting chamber and the top wall of the box body. The exhaust port is connected to an air return port of the cleaning device.

33. A cleaning system, characterized in that: It comprises the cleaning device described in any one of claims 1-28 and the base station described in any one of claims 29-32.

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