Cleaning equipment and cleaning system

Abstract

The invention discloses cleaning equipment and a cleaning system. The cleaning equipment comprises an equipment main body; the driving assembly is connected to the equipment body and used for driving the equipment body to advance on the to-be-cleaned surface; the first water tank is mounted on the equipment main body, and the first water tank is provided with an accommodating cavity, and an air vent, a water inlet and a water outlet which are communicated with the accommodating cavity; the first air pump is provided with a first air outlet and a first air inlet; and the reversing mechanism is used for switching the ventilation opening between the communication between the ventilation opening and the first air outlet and the communication between the ventilation opening and the first air inlet. According to the cleaning equipment and the cleaning system, water inflow and water outflow of the water tank can be achieved through the cleaning equipment, and an electric device does not need to be arranged on a base station matched with the cleaning equipment to conduct water supplementing or water pumping on the first water tank of the cleaning equipment.

Description

Technical Field

[0001] The present application relates to the technical field of smart home appliances, and more specifically to a cleaning device and a cleaning system. Background Art

[0002] At present, electric devices such as water pumps and air pumps installed in cleaning equipment such as mopping robots and sweeping and mopping robots can usually only enable the water tank to achieve one of the functions of draining and pumping water, such as draining the clean water tank to wet cleaning components such as rollers and mops, or allowing the sewage tank to pump out sewage generated during the cleaning process. When it is necessary to replenish clean water in the clean water tank or to pump out sewage in the sewage tank, it is often necessary to use electric devices such as water pumps and air pumps installed on the base station to achieve this, which obviously increases the cost.

[0003] Therefore, improvements are needed to at least partially solve the above problems. Summary of the invention

[0004] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0005] An embodiment of the present application provides a cleaning device that can generate positive and negative pressures in the accommodating chamber of a first water tank through a positive and negative pressure component to achieve water intake and drainage of the first water tank. There is no need to set an electric device on a base station that cooperates with the cleaning device to replenish or pump water from the first water tank.

[0006] In a first aspect, an embodiment of the present application provides a cleaning device, comprising:

[0007] Equipment body;

[0008] A driving assembly, the driving assembly being connected to the device body and used to drive the device body to move on the surface to be cleaned;

[0009] A first water tank, the first water tank is installed on the equipment body, the first water tank has a first accommodating cavity and a vent, a water inlet and a water outlet communicated with the first accommodating cavity;

[0010] a first air pump, the first air pump having a first air outlet and a first air inlet;

[0011] a switching mechanism, the switching mechanism being used to switch the vent between being connected to the first air outlet and being connected to the first air inlet;

[0012] When the vent is connected to the first air outlet, the first air pump can generate positive pressure in the first accommodating chamber so that the liquid in the first accommodating chamber leaves the first accommodating chamber through the water outlet;

[0013] When the air vent is connected to the first air inlet, the first air pump can generate negative pressure in the first accommodating chamber to allow liquid outside the first accommodating chamber to enter the first accommodating chamber through the water inlet.

[0014] In a second aspect, an embodiment of the present application provides a cleaning system, comprising:

[0015] Cleaning equipment as described above;

[0016] A base station, the base station comprising a base station body and a third water tank, the third water tank being detachably connected to the base station body;

[0017] When the cleaning device is docked with the base station, the third water tank is used to communicate with the water outlet, the reversing mechanism enables the vent to communicate with the first air outlet, and the first air pump can generate positive pressure in the first accommodating chamber to allow the liquid in the first accommodating chamber to enter the third water tank through the water outlet; or,

[0018] When the cleaning device is docked with the base station, the third water tank is used to connect with the water inlet, the reversing mechanism connects the vent with the first air inlet, and the first air pump can generate negative pressure in the first containing chamber so that the liquid in the third water tank enters the first containing chamber through the water inlet.

[0019] In a third aspect, an embodiment of the present application provides a cleaning system, comprising:

[0020] Cleaning equipment as described above;

[0021] A base station, the base station comprising a base station body and a sewage pipe arranged on the base station body, the sewage pipe being used to communicate with an external drainage unit;

[0022] When the cleaning device is docked with the base station, the drain pipe is used to connect with the water outlet, the reversing mechanism connects the vent with the first air outlet, and the first air pump can generate positive pressure in the first accommodating chamber so that the liquid inside the first accommodating chamber enters the external drainage unit through the water outlet and the drain pipe.

[0023] In a fourth aspect, an embodiment of the present application provides a cleaning system, comprising:

[0024] Cleaning equipment as described above;

[0025] A base station, the base station comprising a base station body and a water inlet pipe arranged on the base station body, the water inlet pipe being used to be connected to an external water supply unit;

[0026] When the cleaning device is docked with the base station, the external water supply unit is connected to the water inlet through the water inlet pipe, the reversing mechanism connects the vent with the first air inlet, and the first air pump can generate negative pressure in the first containing chamber to allow liquid from the external water supply unit to enter the first containing chamber through the water inlet pipe and the water inlet.

[0027] According to the cleaning equipment and cleaning system of the present application, the connection relationship between the air inlet and outlet of the first air pump and the air vent of the first water tank can be changed through the reversing mechanism, thereby generating positive and negative pressure in the accommodating chamber of the first water tank to realize water intake and drainage of the first water tank. There is no need to set an electric device on the base station cooperating with the cleaning equipment to replenish or pump water from the first water tank, thereby effectively reducing the cost of the base station cooperating with the water cleaning equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following drawings of the present application are hereby used as part of the present application for understanding the present application. The drawings show the embodiments of the present application and their descriptions, and are used to explain the device and principle of the present application. In the drawings,

[0029] Figure 1 is a schematic structural diagram of a cleaning device according to an embodiment of the present application;

[0030] Figure 2 for Figure 1 A schematic diagram of the structure of the positive and negative pressure components in the cleaning equipment;

[0031] Figure 3 for Figure 2 A schematic diagram of the structure of the base;

[0032] Figure 4 for Figure 2 A schematic diagram of the structure of the connecting parts and connecting pipes;

[0033] Figure 5 for Figure 2 A cross-sectional schematic diagram of the first connecting pipe, the second connecting pipe, the third connecting pipe and the fourth connecting pipe when they are in a first position;

[0034] Figure 6 for Figure 2 A cross-sectional schematic diagram of the positive and negative pressure group when the first connecting pipe, the second connecting pipe, the third connecting pipe and the fourth connecting pipe are in the second position;

[0035] Figure 7 for Figure 1A schematic diagram of the structure and fluid flow direction of the cleaning device when the first connecting pipe, the second connecting pipe, the third connecting pipe and the fourth connecting pipe are in the first position, wherein the arrows in the figure indicate the fluid flow direction;

[0036] Figure 8 for Figure 7 A schematic cross-sectional view of a first clean water tank of a cleaning device in FIG. 1 , wherein arrows in the figure indicate the direction of air flow;

[0037] Fig. 9 for Figure 7 A schematic cross-sectional view of a first sewage tank of a cleaning device in FIG. 1 , wherein arrows in the figure indicate the direction of air flow;

[0038] Fig.10 for Figure 1 A schematic diagram of the structure and fluid flow direction of the cleaning device when the first connecting pipe, the second connecting pipe, the third connecting pipe and the fourth connecting pipe are in the second position, wherein the arrows in the figure indicate the fluid flow direction;

[0039] Fig.11 for Fig.10 A schematic cross-sectional view of a first clean water tank of a cleaning device in FIG. 1 , wherein arrows in the figure indicate the direction of air flow;

[0040] Fig.12 for Fig.10 A schematic cross-sectional view of a first sewage tank of a cleaning device in FIG. 1 , wherein arrows in the figure indicate the direction of air flow;

[0041] Fig.13 is a schematic structural diagram of a cleaning system according to an embodiment of the present application;

[0042] Fig.14 for Fig.12 A schematic diagram of the structure of the second clean water tank in the cleaning system;

[0043] Fig.15 for Fig.12 A schematic cross-sectional view of the cleaning system in the figure when replenishing clean water for the cleaning device, wherein the arrows in the figure indicate the direction of liquid flow;

[0044] Fig.16 for Fig.12 A schematic cross-sectional view of the cleaning system in the embodiment of the present invention when discharging sewage from the cleaning device, wherein arrows in the figure indicate the direction of liquid flow;

[0045] Fig.17 for Fig.12 A schematic cross-sectional view of the cleaning system in the embodiment of the present invention when the water is automatically supplied;

[0046] Fig.18 for Fig.12 Schematic cross-sectional view of the cleaning system during automatic launching.

[0047] Description of reference numerals:

[0048] 100-cleaning equipment, 110-equipment body, 120-first clean water tank, 121-first accommodating chamber, 122-first vent, 123-second vent, 124-water inlet, 125-water outlet, 126-first stop-leak valve, 127-second stop-leak valve, 128-first one-way valve, 129-second one-way valve, 130-first sewage tank, 131-second accommodating chamber, 132-first vent, 133-second vent, 134-liquid inlet, 135-liquid outlet, 136-third stop-leak valve, 137-fourth stop-leak valve, 138-third one-way valve, 139-fourth one-way valve, 140-positive and negative pressure components, 141-base, 1411-first Mounting seat, 1412-second mounting seat, 1413-fifth butt joint pipe, 1414-sixth butt joint pipe, 1415-seventh butt joint pipe, 1416-eighth butt joint pipe, 1417-guide hole, 1418-first position detection sensor, 1419-second position detection sensor, 142-motor, 143-connecting piece, 1431-guide protrusion, 1432-in-place baffle, 144-first air pump, 1441-first air inlet, 1442-first air outlet, 145-second air pump, 1451-second air inlet, 1452-second air outlet, 146-first butt joint pipe, 147-second butt joint pipe, 148-third butt joint pipe, 149-fourth butt joint pipe;

[0049] 200-base station, 210-base station body, 211-shell, 2111-first water inlet, 2112-first adapter, 2113-second adapter, 2114-first water outlet, 2115-second water inlet, 2116-third adapter, 2117-fourth adapter, 2118-second water outlet, 212-sixth connecting pipe, 213-first adapter, 214-seventh connecting pipe, 215-eighth connecting pipe, 216-second adapter, 217-ninth connecting pipe, 220-second clean water tank, 221-third accommodating chamber, 222-third water inlet, 223-third water outlet, 224-third water inlet pipe, 225-third water outlet, 226-water stop, 230-second sewage tank, 231-fourth water inlet;

[0050] 300-first water pipe;

[0051] 400-second water pipe;

[0052] 500-Third water pipe. DETAILED DESCRIPTION

[0053] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it is apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features well known in the art are not described.

[0054] It should be understood that the present application can be implemented in different forms and should not be construed as being limited to the embodiments presented herein. On the contrary, providing these embodiments will make the disclosure thorough and complete and fully convey the scope of the present application to those skilled in the art. In the accompanying drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity. The same reference numerals throughout represent the same elements.

[0055] It should be understood that although the terms first, second, third, etc. can be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present application, the first element, component, region, layer or part discussed below can be represented as a second element, component, region, layer or part.

[0056] Spatially relative terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used herein for convenience of description to describe the relationship of one element or feature to other elements or features shown in the figures. It should be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation shown in the figures.

[0057] Embodiments of the invention are described herein with reference to cross-sectional views as schematic diagrams of ideal embodiments (and intermediate structures) of the present application. Thus, variations in the shapes shown due to, for example, manufacturing techniques and / or tolerances can be expected. Therefore, embodiments of the present application should not be limited to the specific shapes shown herein, but include shape deviations due to, for example, manufacturing. Therefore, what is shown in the figures is schematic in nature, and their shapes are not intended to display the actual shape of the device and are not intended to limit the scope of the present application.

[0058] See attached Figure 1-12 An exemplary description is given of a cleaning device 100 according to an embodiment of the present application. The cleaning device 100 of the embodiment of the present application may be a mopping robot, a sweeping and mopping robot, etc., which includes a device body 110, a driving component, a first clean water tank 120, a first dirty water tank 130 and a positive and negative pressure component 140.

[0059] The device body 110 is a shell 211 structure, which has a storage space inside. Other components or structures in the cleaning device 100 are directly or indirectly connected to the device body 110. The device body 110 may be provided with a cleaning component for cleaning the surface to be cleaned. The cleaning component may include a roller or a mop. The cleaning component may clean the surface to be cleaned when in contact with the surface to be cleaned. The device body 110 may also be provided with a sewage collection component, which is used to collect sewage generated during the cleaning process. The sewage collection component may abut against the cleaning component to scrape and collect sewage in the cleaning component.

[0060] The driving assembly is connected to the device body 110, and is used to drive the device body 110 to advance on the surface to be cleaned. In an embodiment of the present application, the driving assembly may include a driving motor 142, a traveling wheel and a universal wheel. The universal wheel is rotatably connected to the device body 110, and is located at the front part of the device body 110 on one side of the surface to be cleaned (the part toward the forward direction of the cleaning device 100). There may be two traveling wheels, which are rotatably connected to the device body 110, and are located at the middle or rear part of the device body 110 on one side of the surface to be cleaned. The traveling wheel and the universal wheel can be arranged in an isosceles triangle on the device body 110 towards the side of the surface to be cleaned. The driving motor 142 is arranged inside the device body 110, and is connected to the traveling wheel transmission, and is used to drive the traveling wheel to rotate, thereby driving the device body 110 to advance on the surface to be cleaned. In some embodiments, the drive assembly may include a drive motor 142 and a track wheel. The track wheel is rotatably connected to the equipment body 110 and is located on the side of the equipment body 110 facing the surface to be cleaned. The drive motor 142 is transmission-connected to the track wheel to drive the track wheel to rotate, thereby driving the equipment body 110 to move on the surface to be cleaned.

[0061] The first clean water tank 120 and the first sewage tank 130 are fixedly or detachably mounted on the equipment body 110. The first clean water tank 120 has a first accommodating chamber 121 and a water inlet 124 and a water outlet 125 connected to the first accommodating chamber 121. The first accommodating chamber 121 is used to accommodate clean water, and the first clean water tank 120 can transport clean water to the cleaning components (such as a roller, a mop, etc.) through the water outlet 125 to wet the cleaning components and improve the cleaning effect. The first accommodating chamber 121 is connected to the outside through the water inlet 124, and external equipment such as a base station can supply clean water to the first accommodating chamber 121 through the water inlet 124. In an embodiment of the present application, the water inlet 124 and the water outlet 125 both include a connecting pipe, one end of which is located at the bottom of the first accommodating chamber 121, and the other end is located inside the first accommodating chamber 121, and the first accommodating chamber 121 is connected to the outside through the connecting pipe. The first sewage tank 130 has a second accommodating chamber 131 and a liquid inlet 134 and a liquid outlet 135 in communication with the second accommodating chamber 131. The second accommodating chamber 131 is used to accommodate sewage. The second accommodating chamber 131 is connected to the sewage collecting assembly through the liquid inlet 134. Sewage from the sewage collecting assembly can enter the second accommodating chamber 131 through the liquid inlet 134 and be stored in the second accommodating chamber 131. The second accommodating chamber 131 is in communication with the outside through the liquid outlet 135. The sewage in the second accommodating chamber 131 can be discharged from the second accommodating chamber 131 through the liquid outlet 135. In the embodiment of the present application, the liquid inlet 134 and the liquid outlet 135 both include a connecting pipe, one end of which is located inside the second accommodating chamber 131 and the other end is located outside the second accommodating chamber 131. The second accommodating chamber 131 is in communication with the outside through the connecting pipe.

[0062] The first clean water tank 120 also has an air vent connected to the first accommodating chamber 121. The positive and negative pressure components 140 can be connected to the first accommodating chamber 121 through the air vent to supply or exhaust air to the first accommodating chamber 121, so that the first accommodating chamber 121 is in a positive pressure state or a negative pressure state. When the first accommodating chamber 121 is in a positive pressure state, the clean water in the first accommodating chamber 121 can leave the first accommodating chamber 121 through the water outlet 125 and be supplied to the cleaning component (such as a roller or a mop); when the first accommodating chamber 121 is in a negative pressure state, as long as the water inlet 124 is connected to the device for supplying clean water outside the first clean water tank 120 (such as the clean water tank of the base station or a container containing clean water), the clean water outside the first accommodating chamber 121 can enter the first accommodating chamber 121 through the water inlet 124, so as to achieve the water replenishment of the first clean water tank 120. The first sewage tank 130 also has an air vent connected to the second accommodating chamber 131. The positive and negative pressure assembly 140 can be connected to the second accommodating chamber 131 through the air vent to supply or exhaust air to the second accommodating chamber 131, so that the second accommodating chamber 131 is in a positive pressure state or a negative pressure state. When the second accommodating chamber 131 is in a negative pressure state, the sewage from the sewage collection assembly can enter the second accommodating chamber 131 through the liquid inlet 134; when the second accommodating chamber 131 is in a positive pressure state, the sewage in the second accommodating chamber 131 can be discharged from the second accommodating chamber 131 through the liquid outlet 135. If the liquid outlet 135 is connected to an external device for accommodating sewage (such as a sewage tank on a base station or other container for accommodating sewage) or a floor drain, the sewage in the second accommodating chamber 131 can be discharged to the external device for accommodating sewage or the floor drain, so as to achieve drainage of the first sewage tank 130. Thus, when the cleaning device 100 cleans the surface to be cleaned, the positive and negative pressure components 140 can be used to put the first accommodating chamber 121 in a positive pressure state and the second accommodating chamber 131 in a negative pressure state, so that the clean water in the first accommodating chamber 121 can be supplied to the cleaning component and the sewage generated during the cleaning process can be absorbed into the second accommodating chamber 131; when the cleaning device 100 returns to the base station, the positive and negative pressure components 140 can be used to put the first accommodating chamber 121 in a negative pressure state and the second accommodating chamber 131 in a positive pressure state, so that the clean water in the clean water tank of the base station can be absorbed into the first accommodating chamber 121, thereby replenishing the first clean water tank 120, and discharging the sewage in the second accommodating chamber 131 into the sewage tank of the base station, thereby draining the first sewage tank 130. Furthermore, the cleaning device 100 of the present application can realize the water discharge and water replenishment of the clean water tank, and the water intake and drainage of the sewage tank through the positive and negative pressure components 140 set up by itself. There is no need to set electric devices on the base station cooperating with the cleaning device 100 to replenish the clean water tank or extract the sewage in the sewage tank, which can effectively reduce costs.

[0063] In the embodiment of the present application, the vent includes a first vent 122 and a second vent 123, and the positive and negative pressure assembly 140 can be selectively connected to the first vent 122 or the second vent 123. When the positive and negative pressure assembly 140 is connected to the first vent 122, air can be supplied to the first accommodating chamber 121, so that the first accommodating chamber 121 is in a positive pressure state; when the positive and negative pressure assembly 140 is connected to the second vent 123, air can be evacuated from the first accommodating chamber 121, so that the first accommodating chamber 121 is in a negative pressure state. In the embodiment of the present application, the first vent 122 and the second vent 123 both include a connecting pipe, the first end of the connecting pipe is located inside the first accommodating chamber 121, and the second end is located outside the first accommodating chamber 121. The first accommodating chamber 121 is connected to the outside through the connecting pipe, and the positive and negative pressure assembly 140 is connected to the second end of the connecting pipe. The air vent includes a first air vent 132 and a second air vent 133. The positive and negative pressure assembly 140 can be selectively connected to the first air vent 132 or the second air vent 133. When the positive and negative pressure assembly 140 is connected to the first air vent 132, air can be supplied to the second accommodating chamber 131, so that the second accommodating chamber 131 is in a positive pressure state; when the positive and negative pressure assembly 140 is connected to the second air vent 133, air can be evacuated from the second accommodating chamber 131, so that the second accommodating chamber 131 is in a negative pressure state. In the embodiment of the present application, the first air vent 132 and the second air vent 133 both include a connecting pipe, the first end of the connecting pipe is located inside the second accommodating chamber 131, and the second end is located outside the second accommodating chamber 131. The second accommodating chamber 131 is connected to the outside through the connecting pipe, and the positive and negative pressure assembly 140 is connected to the second end of the connecting pipe.

[0064] See attached Figure 2-6, the positive and negative pressure assembly 140 includes a first air pump 144, a second air pump 145 and a reversing mechanism. The first air pump 144 and the second air pump 145 are both unidirectional air pumps, the first air pump 144 has a first air inlet 1441 and a first air outlet 1442, and the second air pump 145 has a second air inlet 1451 and a second air outlet 1452. It should be noted that the unidirectional air pump mentioned in this application refers to a pump with a fixed air inlet and outlet (that is, the air flow direction inside the air pump is fixed), and its air inlet can only be used for air intake, and the air outlet can only be used for air outlet; the bidirectional air pump mentioned in this application refers to a pump with a convertible air inlet and outlet (that is, a pump with a convertible air flow direction inside the air pump), which can inhale through the air inlet and exhaust through the air outlet, or inhale through the air outlet and exhaust through the air inlet, and its air inlet and outlet can be converted to each other, and there is no strict distinction. The first air pump 144 and the second air pump 145 can be diaphragm pumps or other suitable one-way air pumps. The diaphragm pump has the advantages of small size, small space occupation, low price, etc. The reversing mechanism is used to switch the vent between being connected with the first air outlet 1442 and being connected with the first air inlet 1441. When the vent is connected with the first air outlet 1442, the first air pump 144 can generate positive pressure in the first accommodating chamber 121 so that the liquid inside the first accommodating chamber 121 leaves the first accommodating chamber 121 through the water outlet 125; when the vent is connected with the first air inlet 1441, the first air pump 144 can generate negative pressure in the first accommodating chamber 121 so that the liquid outside the first accommodating chamber 121 enters the first accommodating chamber 121 through the water inlet 124. The reversing mechanism is also used to switch the air vent between being connected to the second air outlet 1452 and being connected to the second air inlet 1451. When the air vent is connected to the second air outlet 1452, the second air pump 145 can generate a positive pressure in the second accommodating chamber 131 so that the liquid inside the second accommodating chamber 131 leaves the second accommodating chamber 131 through the liquid outlet 135; when the air vent is connected to the second air inlet 1451, the second air pump 145 can generate a negative pressure in the second accommodating chamber 131 so that the liquid outside the second accommodating chamber 131 enters the second accommodating chamber 131 through the liquid inlet 134. In the embodiment of the present application, the reversing mechanism connects the air vent with the first air inlet 1441 while connecting the air vent with the second air outlet 1452, so as to simultaneously generate positive pressure in the second accommodating chamber 131 and negative pressure in the first accommodating chamber 121; and the reversing mechanism connects the air vent with the first air outlet 1442 while connecting the air vent with the second air inlet 1451, so as to simultaneously generate negative pressure in the second accommodating chamber 131 and positive pressure in the first accommodating chamber 121.

[0065] The reversing mechanism includes a base 141, an actuating assembly and a connecting pipe. The actuating assembly is used to drive the connecting pipe to move so that the connecting pipe connects the vent and the first air inlet 1441 and connects the air vent and the second air outlet 1452, or connects the vent and the first air outlet 1442 and connects the air vent and the second air inlet 1451. The actuating assembly includes a motor 142 and a connecting member 143. The base 141 has a first mounting seat 1411. The first mounting seat 1411 is used to install and fix the motor 142. The motor 142 can be fixed on the first mounting seat 1411 by welding or other suitable fixing methods. The motor 142 and the connecting member 143 are connected by a gear rack transmission structure to drive the connecting member 143 to move in a straight line direction. The connecting pipe includes a first butt joint pipe 146 , a second butt joint pipe 147 , a third butt joint pipe 148 and a fourth butt joint pipe 149 , which are connected to the connecting member 143 and move synchronously with the movement of the connecting member 143 .

[0066] The base 141 also has a second mounting base 1412, which is used to mount and fix the first air pump 144 and the second air pump 145. The first air pump 144 and the second air pump 145 can be fixed on the second mounting base 1412 by welding or other suitable fixing methods. The base 141 also has a fifth butt joint pipe 1413, a sixth butt joint pipe 1414, a seventh butt joint pipe 1415 and an eighth butt joint pipe 1416. The first end of the fifth butt joint pipe 1413 is connected to the first air inlet 1441 of the first air pump 144, the first end of the sixth butt joint pipe 1414 is connected to the first air outlet 1442 of the first air pump 144, and the second end of the fifth butt joint pipe 1413 and the second end of the sixth butt joint pipe 1414 are arranged opposite to each other with a first gap therebetween. The first end of the seventh butt joint tube 1415 is connected to the second air inlet 1451 of the second air pump 145, the first end of the eighth butt joint tube 1416 is connected to the second air outlet 1452 of the second air pump 145, the second end of the seventh butt joint tube 1415 and the second end of the eighth butt joint tube 1416 are arranged opposite to each other with a second gap therebetween. The first butt joint tube 146, the second butt joint tube 147, the third butt joint tube 148 and the fourth butt joint tube 149 are all U-shaped tubes, the first end of the first butt joint tube 146 and the first end of the second butt joint tube 147 are both located in the first gap, and the first end of the first butt joint tube 146 faces the second end of the fifth butt joint tube 1413, the first end of the second butt joint tube 147 faces the second end of the sixth butt joint tube 1414, the first end of the third butt joint tube 148 and the first end of the fourth butt joint tube 149 are both located in the second gap, and the first end of the third butt joint tube 148 faces the second end of the seventh butt joint tube 1415, and the first end of the fourth butt joint tube 149 faces the second end of the eighth butt joint tube 1416. The first vent 122 is disposed opposite to one end of the first accommodating cavity 121 and the second vent 123 is disposed opposite to one end of the first accommodating cavity 121, and a third gap is formed therebetween. The first vent 132 is disposed opposite to one end of the second accommodating cavity 131 and the second vent 133 is disposed opposite to one end of the second accommodating cavity 131, and a fourth gap is formed therebetween. The second end of the first butt joint tube 146 and the second end of the second butt joint tube 147 are both located in the third gap, and the second end of the first butt joint tube 146 faces one end of the first vent 122 away from the first accommodating cavity 121, and the second end of the second butt joint tube 147 faces one end of the second vent 123 away from the first accommodating cavity 121. The second end of the third butt joint tube 148 and the second end of the fourth butt joint tube 149 are both located in the fourth gap, and the second end of the third butt joint tube 148 faces one end of the first vent 132 away from the second accommodating cavity 131, and the second end of the fourth butt joint tube 149 faces one end of the second vent 133 away from the second accommodating cavity 131.

[0067] Since the first butt joint tube 146, the second butt joint tube 147, the third butt joint tube 148 and the fourth butt joint tube 149 are connected to the connecting member 143 and move synchronously with the movement of the connecting member 143, the motor 142 and the connecting member 143 can drive the first butt joint tube 146, the second butt joint tube 147, the third butt joint tube 148 and the fourth butt joint tube 149 to move as a whole to switch between the first position and the second position.

[0068] See attached Figure 7-9 When the first docking tube 146, the second docking tube 147, the third docking tube 148 and the fourth docking tube 149 are in the first position, the two ends of the first docking tube 146 are respectively connected to the second end of the fifth docking tube 1413 and the end of the first vent 122 away from the first accommodating cavity 121, and the first docking tube 146 can be connected to the fifth docking tube 1413 and the first vent 122 by plugging or directly abutting; the two ends of the second docking tube 147 are separated from the second end of the sixth docking tube 1414 and the end of the second vent 123 away from the first accommodating cavity 121. At this time, the air outlet of the first air pump 144 is connected to the first accommodating chamber 121 through the fifth docking tube 1413, the first docking tube 146 and the first air vent 122, and the first air inlet 1441 of the first air pump 144 is not connected to the first accommodating chamber 121. The air outside the first accommodating chamber 121 can enter the first air pump 144 through the fifth docking tube 1413 and the first air inlet 1441, and be pumped into the first accommodating chamber 121 by the first air pump 144 through the fifth docking tube 1413, the first docking tube 146 and the first air vent 122, so as to generate positive pressure in the first accommodating chamber 121. When the first docking tube 146, the second docking tube 147, the third docking tube 148 and the fourth docking tube 149 are in the first position, the two ends of the third docking tube 148 are separated from the second end of the seventh docking tube 1415 and the end of the first air port 132 away from the second accommodating cavity 131; the two ends of the fourth docking tube 149 are respectively connected to the second end of the eighth docking tube 1416 and the end of the second air port 133 away from the second accommodating cavity 131, and the fourth docking tube 149 can be connected to the eighth docking tube 1416 and the second air port 133 by plugging or directly abutting. At this time, the second air outlet 1452 of the second air pump 145 is not connected to the second accommodating chamber 131, and the second air inlet 1451 of the second air pump 145 is connected to the second accommodating chamber 131 through the eighth docking tube 1416, the fourth docking tube 149 and the second air permeable port 133. The second air pump 145 can extract the gas in the second accommodating chamber 131 through the eighth docking tube 1416, the fourth docking tube 149 and the second air permeable port 133 and discharge it to the outside of the second accommodating chamber 131 through the second air outlet 1452 and the seventh docking tube 1415, so as to generate negative pressure in the second accommodating chamber 131.

[0069] See attached Figure 10-12When the first docking tube 146, the second docking tube 147, the third docking tube 148 and the fourth docking tube 149 are in the second position, the two ends of the first docking tube 146 are respectively separated from the second end of the fifth docking tube 1413 and the end of the first vent 122 away from the first accommodating cavity 121; the two ends of the second docking tube 147 are respectively connected to the second end of the sixth docking tube 1414 and the end of the second vent 123 away from the first accommodating cavity 121, and the second docking tube 147 can be connected with the sixth docking tube 1414 and the second vent 123 by plugging. At this time, the air inlet of the first air pump 144 is connected to the first accommodating chamber 121 through the sixth docking tube 1414, the second docking tube 147 and the second air vent 123, and the first air outlet 1442 of the first air pump 144 is not connected to the first accommodating chamber 121. The first air pump 144 can extract gas from the second accommodating chamber 131 through the sixth docking tube 1414, the second docking tube 147 and the second air vent 123 and discharge it to the outside of the first accommodating chamber 121 through the first air outlet 1442 and the fifth docking tube 1413, so as to generate negative pressure in the first accommodating chamber 121. When the first docking tube 146, the second docking tube 147, the third docking tube 148 and the fourth docking tube 149 are in the second position, the two ends of the third docking tube 148 are respectively connected to the second end of the seventh docking tube 1415 and the end of the first air port 132 away from the second accommodating cavity 131, and the third docking tube 148 can be connected to the seventh docking tube 1415 and the first air port 132 by plugging; the two ends of the fourth docking tube 149 are respectively separated from the second end of the eighth docking tube 1416 and the end of the second air port 133 away from the second accommodating cavity 131. At this time, the second air inlet 1451 of the second air pump 145 is not connected to the second accommodating chamber 131, and the air outlet of the second air pump 145 is connected to the second accommodating chamber 131 through the seventh docking tube 1415, the third docking tube 148 and the first air vent 132. The air outside the second accommodating chamber 131 can enter the second air pump 145 through the eighth docking tube 1416 and the second air inlet 1451, and be pumped into the second accommodating chamber 131 by the second air pump 145 through the seventh docking tube 1415, the third docking tube 148 and the first air vent 132, so as to generate positive pressure in the second accommodating chamber 131.

[0070] See attached Figure 7-12In the embodiment of the present application, a first leak-proof valve 126 is provided at the first vent 122. The first leak-proof valve 126 is configured to open the first vent 122 when the first butt-joint pipe 146 is in the first position (i.e., when the first butt-joint pipe 146 is connected to the first vent 122), and to close the first vent 122 when the first butt-joint pipe 146 is in the second position (i.e., when the first butt-joint pipe 146 is separated from the first vent 122). The first leak-proof valve 126 may be a spring leak-proof valve, which includes a spring and a baffle. When the first butt-joint pipe 146 is connected to the first vent 122, the ejection structure provided on the first butt-joint pipe 146 may push the baffle to move to the open position, so that the first vent 122 is open; when the first butt-joint pipe 146 is separated from the first vent 122, the spring pushes the baffle to move to the closed position by its own elastic force, so that the first vent 122 is closed. The second vent 123 is provided with a second leak-proof valve 127, which is configured to close the second vent 123 when the second butt joint pipe 147 is in the first position, and to open the second vent 123 when the second butt joint pipe 147 is in the second position. Thus, when a positive pressure is generated in the first accommodating chamber 121, the gas in the first accommodating chamber 121 will not leak through the second vent 123; when a negative pressure is generated in the first accommodating chamber 121, the gas outside the first accommodating chamber 121 will not enter the first accommodating chamber 121 through the first vent 122. Correspondingly, the first air vent 132 is provided with a third leak-proof valve 136, which is configured to close the first air vent 132 when the third butt joint pipe 148 is in the first position, and to open the first air vent 132 when the third butt joint pipe 148 is in the second position; the second air vent 133 is provided with a fourth leak-proof valve 137, which is configured to open the second air vent 133 when the fourth butt joint pipe 149 is in the first position, and to close the second air vent 133 when the fourth butt joint pipe 149 is in the second position. The second leak-proof valve 127, the third leak-proof valve 136 and the fourth leak-proof valve 137 can all be spring leak-proof valves.

[0071] See attached Figure 7-12In the embodiment of the present application, a first one-way valve 128 is provided at the water inlet 124, and the first one-way valve 128 is configured to allow the fluid outside the first accommodating chamber 121 to enter the first accommodating chamber 121 through the water inlet 124, and to restrict the fluid in the first accommodating chamber 121 from leaving the first accommodating chamber 121 through the water inlet pipe. The first one-way valve 128 can be, for example, a duckbill valve or a leak-proof valve. When the first one-way valve 128 is a leak-proof valve, it can be configured to make the water inlet 124 conductive when the water inlet 124 is connected to the clean water outlet on the base station, and to close the water inlet 124 when the water inlet 124 is separated from the clean water outlet on the base station. A second one-way valve 129 is provided at the water outlet 125, and the second one-way valve 129 is configured to allow the fluid in the first accommodating chamber 121 to leave the first accommodating chamber 121 through the water outlet 125, and to restrict the fluid outside the first accommodating chamber 121 from entering the first accommodating chamber 121 through the water outlet 125. The second one-way valve 129 can be a duckbill valve. By setting the first one-way valve 128 and the second one-way valve 129, when positive pressure is generated in the first accommodating chamber 121, the clean water in the first accommodating chamber 121 will not leak through the water inlet 124; when negative pressure is generated in the first accommodating chamber 121, the gas or clean water outside the first accommodating chamber 121 will not enter the first accommodating chamber 121 through the water outlet 125. Correspondingly, a third one-way valve 138 is provided at the liquid inlet 134, and the third one-way valve 138 is configured to allow the fluid outside the third accommodating chamber 221 to enter the second accommodating chamber 131 through the liquid inlet 134, and restrict the fluid in the second accommodating chamber 131 from leaving the second accommodating chamber 131 through the liquid inlet 134; a fourth one-way valve 139 is provided at the liquid outlet 135, and the fourth one-way valve 139 is configured to allow the fluid in the second accommodating chamber 131 to leave the second accommodating chamber 131 through the liquid outlet 135, and restrict the fluid outside the second accommodating chamber 131 from entering the second accommodating chamber 131 through the fourth outlet pipe. The third one-way valve 138 may be a duckbill valve, and the fourth one-way valve 139 may be a duckbill valve or a leak-stop valve.

[0072] See attached Figure 2-6 In the embodiment of the present application, a guide hole 1417 is provided on the base 141, and a guide protrusion 1431 matching the shape of the guide hole 1417 is provided on the connecting member 143. The guide protrusion 1431 is inserted into the guide hole 1417 and is configured to move only along the extension direction of the guide hole 1417. The extension direction of the guide hole 1417 is consistent with the direction from the first position to the second position (that is, the direction from the first position to the second position). Therefore, through the provision of the guide hole 1417 and the guide protrusion 1431, the first butt joint tube 146, the second butt joint tube 147, the third butt joint tube 148 and the fourth butt joint tube 149 can stably move between the first position and the second position, and more accurately connect with each butt joint tube, each inlet pipe and each outlet pipe.

[0073] See attached Figure 2-6 In the embodiment of the present application, the base 141 has a first position detection sensor 1418 and a second position detection sensor 1419, and there is a gap between the first position detection sensor 1418 and the second position detection sensor 1419. The connector 143 has a stop plate 1432, and the stop plate 1432 can be a protruding portion on the connector 143, which is located in the gap between the first position detection sensor 1418 and the second position detection sensor 1419. The first position detection sensor 1418 and the second position detection sensor 1419 can be micro switches or other suitable contact sensors. See the attached Figure 5 , 6When the connecting member 143 drives the first butt joint tube 146, the second butt joint tube 147, the third butt joint tube 148 and the fourth butt joint tube 149 to move to the first position, the in-position baffle 1432 abuts against the first position detection sensor 1418, triggering the first position detection sensor 1418; when the connecting member 143 drives the first butt joint tube 146, the second butt joint tube 147, the third butt joint tube 148 and the fourth butt joint tube 149 to move to the second position, the in-position baffle 1432 abuts against the second position detection sensor 1419, triggering the second position detection sensor 1419. The positive and negative pressure unit also includes a controller, which is connected to the first position detection sensor 1418, the second position detection sensor 1419 and the motor 142, and is used to control the motor 142 to stop working when triggered by the first position detection sensor 1418 or the second position detection sensor 1419, so that the connecting piece 143 and the first butt joint tube 146, the second butt joint tube 147, the third butt joint tube 148 and the fourth butt joint tube 149 stop moving, so that the first butt joint tube 146, the second butt joint tube 147, the third butt joint tube 148 and the fourth butt joint tube 149 can accurately move to the first position or the second position and remain at that position. In some embodiments, the first stop-leak valve 126, the second stop-leak valve 127, the third stop-leak valve 136 and the fourth stop-leak valve 137 may be solenoid valves connected to a controller. When the first position detection sensor 1418 is triggered, the controller controls the first stop-leak valve 126 and the fourth stop-leak valve 137 to open, and the second stop-leak valve 127 and the third stop-leak valve 136 to close; when the second position detection sensor 1419 is triggered, the controller controls the second stop-leak valve 127 and the third stop-leak valve 136 to open, and the first stop-leak valve 126 and the fourth stop-leak valve 137 to close. In some other embodiments, the controller may control the motor 142 (for example, the voltage, current, working time, etc. of the motor 142) to drive the connector 143 and the first butt joint pipe 146, the second butt joint pipe 147, the third butt joint pipe 148 and the fourth butt joint pipe 149 to move to the first position or the second position and maintain them at that position. At this time, the first position detection sensor 1418 and the second position detection sensor 1419 may not be provided on the base 141 , and the position stopper 1432 may not be provided on the connecting member 143 .

[0074] In the embodiment of the present application, the first butt joint tube 146, the second butt joint tube 147, the third butt joint tube 148 and the fourth butt joint tube 149 are driven to switch between the first position and the second position by the motor 142 and the connecting member 143. In some other embodiments, the first butt joint tube 146, the second butt joint tube 147, the third butt joint tube 148 and the fourth butt joint tube 149 may also be driven to switch between the first position and the second position by an actuating mechanism such as a ball screw or a cylinder, and those skilled in the art may make a selection as needed.

[0075] In the embodiment of the present application, the first butt joint tube 146, the second butt joint tube 147, the third butt joint tube 148 and the fourth butt joint tube 149 are respectively connected to the air inlet and outlet of the first air pump 144 and the air inlet and outlet of the second air pump 145 through the fifth butt joint tube 1413, the sixth butt joint tube 1414, the seventh butt joint tube 1415 and the eighth butt joint tube 1416. In some other embodiments, the fifth connecting tube 1413, the sixth connecting tube 1414, the seventh connecting tube 1415 and the eighth connecting tube 1416 may not be provided on the base 141, but the first ends of the fifth connecting tube 1413, the sixth connecting tube 1414, the seventh connecting tube 1415 and the eighth connecting tube 1416 are connected to the air inlet and outlet of the first air pump 144 and the air inlet and outlet of the second air pump 145 through a retractable pipe fitting such as a bellows, or the fifth connecting tube 1413, the sixth connecting tube 1414, the seventh connecting tube 1415 and the eighth connecting tube 1416 are configured as retractable pipe fittings such as bellows and their first ends are respectively connected to the air inlet and outlet of the first air pump 144 and the air inlet and outlet of the second air pump 145. Thus, when the first butt joint tube 146, the second butt joint tube 147, the third butt joint tube 148 and the fourth butt joint tube 149 are switched between the first position and the second position, the first ends thereof are always connected to the air inlet and outlet of the first air pump 144 and the air inlet and outlet of the second air pump 145. The second ends thereof are selectively connected to the first vent 122, the second vent 133 or to the second vent 123 and the first vent 132.

[0076] In some other embodiments, only one water tank may be provided on the cleaning device 100, for example, only the first clean water tank 120 or only the first sewage tank 130. In this case, the positive and negative pressure assembly 140 may include a reversing mechanism and an air pump, and the reversing mechanism includes a motor, a connector, and two connecting pipes located on the connector. The specific manner in which the reversing mechanism and the air pump generate positive and negative pressures in the water tank is the same as the manner in which the reversing mechanism and the first air pump 144 generate positive and negative pressures in the first clean water tank 120 in the present application, or the same as the manner in which the reversing mechanism and the second air pump 145 generate positive and negative pressures in the first sewage tank 130, and the description will not be repeated here. For example, in some embodiments, the cleaning device 100 is provided with a sewage tank, a reversing mechanism and an air pump. When the cleaning device 100 cleans the surface to be cleaned, the reversing mechanism connects the air vent of the sewage tank with the air inlet of the air pump, thereby generating a negative pressure in the sewage tank to absorb the sewage generated during the cleaning process into the sewage tank. When the cleaning device 100 moves to the floor drain, the reversing mechanism connects the air vent of the sewage tank with the air outlet of the air pump, thereby generating a positive pressure in the sewage tank to discharge the sewage in the sewage tank through the liquid outlet on the sewage tank into the floor drain.

[0077] In some other embodiments, the base 141, the actuating assembly and the connecting pipe can be replaced by a first reversing valve and a second reversing valve. The first reversing valve is connected to the first air outlet 1442 of the first air pump 144, the first air inlet 1441 of the first air pump 144 and the air vent of the first clean water tank 120. The first reversing valve can selectively connect the first air outlet 1442 of the first air pump 144 with the air vent of the first clean water tank 120 to generate a positive pressure in the first accommodating chamber 121, or connect the first air inlet of the first air pump 144 with the air vent of the first clean water tank 120 to generate a negative pressure in the first accommodating chamber 121. The second reversing valve is connected to the second air outlet 1452 of the second air pump 145, the second air inlet 1451 of the second air pump 145 and the air vent of the first sewage tank 130. The second reversing valve can selectively connect the second air outlet 1452 of the second air pump 145 with the air vent of the first sewage tank 130 to generate a positive pressure in the second accommodating chamber 131, or connect the second air inlet 1451 of the second air pump 145 with the air vent of the first sewage tank 130 to generate a negative pressure in the second accommodating chamber 131.

[0078] In some other embodiments, the cleaning device may not have a reversing mechanism, and the first air pump and the second air pump may be bidirectional air pumps, and the vent and the air permeable port each have only one pipe. The first air pump is connected to the vent to supply or exhaust air to the first accommodating chamber 121, so that the first accommodating chamber 121 is in a positive pressure state or a negative pressure state; the second bidirectional air pump is connected to the air permeable port to supply or exhaust air to the second accommodating chamber 131, so that the second accommodating chamber 131 is in a positive pressure state or a negative pressure state. The bidirectional air pump may be a peristaltic pump or other suitable bidirectional air pumps.

[0079] See attached Figure 13-18 A cleaning system according to an embodiment of the present application is exemplarily described, and the cleaning system includes the cleaning device 100 and the base station 200 as described above, the base station 200 includes a base station body 210, a second clean water tank 220 and a second sewage tank 230, and the second clean water tank 220 and the second sewage tank 230 are detachably connected to the base station body 210.

[0080] The base station body 210 includes a shell 211 and a first water inlet 2111, a first water outlet 2114, a second water inlet 2115 and a second water outlet 2118 on the shell 211, wherein the first water inlet 2111 is connected to the first water outlet 2114, and the second water inlet 2115 is connected to the second water outlet 2118. Specifically, the base station body 210 also includes a sixth connecting pipe 212, a seventh connecting pipe 214, an eighth connecting pipe 215, a ninth connecting pipe 217, a first transfer pipe 213 and a second transfer pipe 216, and the shell 211 also has a first transfer port 2112 and a second transfer port 2113. The first water inlet 2111 is connected to the first end of the first adapter 2112 through the sixth connecting pipe 212, the first water outlet 2114 is connected to the first end of the second adapter 2113 through the seventh connecting pipe 214, the second end of the first adapter 2112 and the second end of the second adapter 2113 are connected through the first adapter tube 213, and the first adapter tube 213 can be a U-shaped joint or a U-shaped tube. Thus, the first water inlet 2111 is connected to the first water outlet 2114 through the sixth connecting pipe 212, the first adapter 2112, the first adapter tube 213, the second adapter 2113 and the seventh connecting pipe 214 in sequence. The second water inlet 2115 is connected to the first end of the third adapter 2116 through the eighth connecting pipe 215, the second water outlet 2118 is connected to the first end of the fourth adapter 2117 through the ninth connecting pipe 217, the second end of the third adapter 2116 and the second end of the fourth adapter 2117 are connected through the second adapter tube 216, and the second adapter tube 216 can be a U-shaped joint or a U-shaped tube. Thus, the second water inlet 2115 is connected to the second water outlet 2118 through the eighth connecting pipe 215, the third adapter 2116, the second adapter tube 216, the fourth adapter 2117 and the ninth connecting pipe 217 in sequence. The first adapter tube 213 is detachably connected to the first adapter 2112 and the second adapter 2113, and the second adapter tube 216 is detachably connected to the third adapter 2116 and the fourth adapter 2117. In some other embodiments, the base station 200 may not be provided with the sixth connecting pipe 212, the seventh connecting pipe 214, the eighth connecting pipe 215, the ninth connecting pipe 217, the first transfer tube 213, the second transfer tube 216, the first transfer interface 2112 and the second transfer interface 2113, but the first water inlet 2111 and the first water outlet 2114 may be directly connected through connecting pipes, and the second water inlet 2115 and the second water outlet 2118 may be directly connected through connecting pipes.

[0081] The second clean water tank 220 includes a third accommodating chamber 221, a third water inlet 222, a third water outlet 223, a third water inlet pipe 224, a third water outlet pipe 225 and a water stop 226. The first end of the third water inlet 222 is located outside the second clean water tank 220, and the second end of the third water inlet 222 is connected to the upper part of the third accommodating chamber 221 through the third water inlet pipe 224. The first end of the third water outlet 223 is located outside the second clean water tank 220, and the second end of the third water outlet 223 is connected to the bottom of the third accommodating chamber 221 through the third water outlet pipe 225. The water stop 226 is used to close the third water inlet pipe 224 when the liquid level in the third accommodating chamber 221 reaches a preset height. The water stop 226 may be a float valve, which is connected to the third water inlet pipe 224. The float in the float valve rises and falls synchronously with the rise and fall of the liquid level in the third accommodating chamber 221. When the liquid level is lower than a preset height, the float valve opens the third water inlet pipe 224. When the liquid level reaches a preset height, the float valve closes the third water inlet pipe 224, so that the external clean water cannot enter the third accommodating chamber 221 through the third water inlet 222 and the third water inlet pipe 224. In some embodiments, the water stop 226 may include a solenoid valve and a liquid full detection sensor. The solenoid valve is disposed on the third water outlet pipe 225, which is used to close the third water outlet pipe 225 when the liquid full detection sensor detects that the liquid level reaches a preset height, and open the third water outlet pipe 225 when the liquid level does not reach the preset height. The second sewage tank 230 includes a fourth accommodating chamber and a fourth water inlet 231 connected to the fourth accommodating chamber.

[0082] The base station 200 according to the embodiment of the present application can switch between the normal mode and the automatic water supply and discharge mode. Fig.13 , 15 , 16. When the base station 200 is in normal mode, the second clean water tank 220 and the second sewage tank 230 are connected to the base station body 210, the third water outlet 223 of the second clean water tank 220 is connected to the first water inlet 2111 of the base station body 210, the fourth water inlet 231 of the second sewage tank 230 is connected to the second water outlet 2118 of the base station body 210, the second end of the first transfer interface 2112 and the second end of the second transfer interface 2113 on the base station body 210 are connected through the first transfer tube 213, the second end of the third transfer interface 2116 and the second end of the fourth transfer interface 2117 are connected through the second transfer tube 216, so that the third accommodating chamber 221 of the second clean water tank 220 is connected to the first water outlet 2114 of the base station body 210, and the fourth accommodating chamber of the second sewage tank 230 is connected to the second water inlet 2115 of the base station body 210.

[0083] When the cleaning device 100 is docked with the base station 200 (that is, when the cleaning device 100 moves to a preset position in the base station 200), the water inlet 124 of the first clean water tank 120 is connected to the first water outlet 2114 of the base station body 210, that is, the water inlet 124 is connected to the second clean water tank 220 through the base station body 210, the liquid outlet 135 of the first sewage tank 130 is connected to the second water inlet 2115 of the base station body 210, and the liquid outlet 135 is connected to the second sewage tank 230 through the base station body 210. At this time, as long as The reversing mechanism connects the vent of the first clean water tank 120 with the first air inlet 1441 of the first air pump 144, and connects the vent of the first sewage tank 130 with the second air outlet 1442 of the second air pump 145. The first air pump 144 can generate negative pressure in the first accommodating chamber 121 to absorb the clean water in the second clean water tank 220 into the first clean water tank 120, and the second air pump 145 can generate positive pressure in the second accommodating chamber 131 to discharge the sewage in the first sewage tank 130 into the second sewage tank 230 of the base station 200.

[0084] That is, for the cleaning system of the embodiment of the present application, when the cleaning device 100 cleans the surface to be cleaned, the first accommodating chamber 121 can be placed in a positive pressure state and the second accommodating chamber 131 can be placed in a negative pressure state through the reversing mechanism, the first air pump 144 and the second air pump 145, so that the clean water in the first accommodating chamber 121 is supplied to the cleaning component and the sewage generated during the cleaning process is absorbed into the second accommodating chamber 131. When the cleaning device 100 is docked with the base station 200, that is, when it moves to a preset position in the base station body 210, the first accommodating chamber 121 can be placed in a negative pressure state and the second accommodating chamber 131 can be placed in a positive pressure state through the reversing mechanism, the first air pump 144 and the second air pump 145, so that the clean water in the second clean water tank 220 of the base station 200 is absorbed into the first accommodating chamber 121, so as to replenish the first clean water tank 120, and the sewage in the second accommodating chamber 131 is discharged into the second sewage tank 230 of the base station 200, so as to drain the first sewage tank 130. Furthermore, the cleaning device 100 of the present application can realize water discharge and water replenishment of the first clean water tank 120, and water intake and drainage of the first sewage tank 130 by itself. There is no need to set electric devices such as air pumps and water pumps on the base station 200 to replenish the first clean water tank 120 or extract the sewage in the first sewage tank 130, which can effectively reduce the cost of the base station 200 and reduce the volume of the base station 200.

[0085] According to the embodiment of the present application, the base station 200 can be switched from the normal mode to the automatic water supply and drainage mode. Specifically, the second clean water tank 220, the first transfer tube 213 and the second transfer tube 216 are removed from the base station body 210, the third water inlet 222 of the second clean water tank 220 is connected to an external water supply unit such as a faucet through the first water pipe 300, the third water outlet 223 of the second clean water tank 220 is connected to the second end of the second transfer interface 2113 of the base station body 210 through the second water pipe 400, and the second end of the third transfer interface 2116 is connected to an external drainage unit such as a floor drain through the third water pipe 500, and the base station 200 can be switched to the automatic water supply and drainage mode. See the attached Figure 17-18 When the base station 200 is in the automatic water supply and drainage mode, the external water supply unit is connected to the first water outlet 2114 through the first water pipe 300, the second clean water tank 220, the second water pipe 400, the second adapter 2113 and the seventh connecting pipe 214, and the second water inlet 2115 is connected to the floor drain through the eighth connecting pipe 215, the third adapter 2116 and the third water pipe 500. Clean water from the external water supply unit enters the third accommodating chamber 221 through the third water inlet 222 of the second clean water tank 220 and the third water inlet pipe 224. When the liquid level of the clean water in the third accommodating chamber 221 reaches a preset height, the water stopper 226 closes the third water inlet pipe 224, so that the clean water from the external water supply unit cannot continue to enter the third accommodating chamber 221. When the cleaning device 100 is docked with the base station 200, that is, when the cleaning device 100 enters the preset position in the base station 200 (that is, when the water inlet 124 is connected to the first water outlet 2114, and the liquid outlet 135 is connected to the second water inlet 2115), the first accommodating chamber 121 can be placed in a negative pressure state and the second accommodating chamber 131 can be placed in a positive pressure state through the reversing mechanism, the first air pump 144 and the second air pump 145, so that the clean water in the second clean water tank 220 is absorbed into the first accommodating chamber 121, thereby replenishing the first clean water tank 120, and discharging the sewage in the first sewage tank 130 into the floor drain, thereby draining the first sewage tank 130. During this process, the liquid level in the second clean water tank 220 decreases, the water stop 226 opens the third water inlet pipe 224, and clean water from the external water supply unit can enter the third accommodating chamber 221 through the third water inlet 222 and the third water inlet pipe 224 of the second clean water tank 220 to replenish the second clean water tank 220.

[0086] For conventional cleaning systems, if automatic water supply and discharge is required, it is usually necessary to set a set of electric devices on the base station 200 for discharging the sewage in the second sewage tank 230 and automatically adding clean water to the second clean water tank 220. However, the cleaning system of the embodiment of the present application can conveniently realize automatic water supply and discharge, which can significantly reduce costs, without setting electric devices on the base station 200 for discharging the sewage in the second sewage tank 230 and automatically adding clean water to the second clean water tank 220. Moreover, the user can conveniently switch between the normal mode and the automatic water supply and discharge mode as needed. The normal mode is to supply water to the first clean water tank 120 of the cleaning equipment 100 through the second clean water tank 220 connected to the first water inlet 2111 of the base station body 210, and to collect the sewage from the first sewage tank 130 of the cleaning equipment 100 through the second sewage tank 230 connected to the first water outlet 2114 of the base station body 210 (such as Fig.15 , 16 As shown in FIG. 1 ), this mode requires the user to manually add clean water to the second clean water tank 220 and manually pour out the sewage in the second sewage tank 230; the automatic water supply mode is a mode in which an external water supply unit such as a faucet replenishes clean water to the second clean water tank 220, and the sewage is discharged into the sewer through an external drainage unit such as a floor drain (as shown in FIG. Fig.17 , 18 This mode does not require the user to manually pour out dirty water or add clean water.

[0087] In some other embodiments, the base station in the cleaning system may include a base station body, a water inlet pipe arranged on the base station body, and a sewage pipe arranged on the base station body, wherein the water inlet pipe is used to connect to a water supply unit such as a faucet, and the sewage pipe is used to communicate with an external drainage unit such as a floor drain, and the base station body also has a water outlet connected to the water inlet pipe and a water inlet connected to the sewage pipe. When the cleaning device 100 is docked with the base station, that is, when the cleaning device 100 enters the preset position in the base station 200, the water inlet 124 of the first clean water tank 120 is connected to the water outlet of the base station body, and the liquid outlet 135 of the first sewage tank 130 is connected to the water inlet of the base station body, that is, the first clean water tank 120 is connected to the external water supply unit through the water outlet and the water inlet on the base station body, and the first sewage tank 130 is connected to the external drainage unit through the water inlet and the sewage pipe on the base station body. At this time, the vent of the first clean water tank 120 is connected to the first air inlet 1441 of the first air pump 144 through the reversing mechanism, and the vent of the first sewage tank 130 is connected to the second air outlet 1442 of the second air pump 145. The first air pump 144 can generate negative pressure in the first accommodating chamber 121 so that clean water from the external water supply unit enters the first accommodating chamber 121 of the first clean water tank 120 through the water inlet pipe on the base station body, the water outlet and the water inlet 124 on the base station body, and the second air pump 145 can generate positive pressure in the second accommodating chamber 131 so that the sewage in the second accommodating chamber 131 of the first sewage tank 130 enters the external drainage unit through the liquid outlet 135, the water inlet on the base station body, and the sewage pipe on the base station body. In the cleaning system of this embodiment, the base station can realize automatic water supply and discharge without setting a water tank.

[0088] Of course, in some other embodiments, the base station of the cleaning system has only a conventional mode, that is, the structure and pipeline for switching are omitted. Specifically, the base station 200 includes a base station body 210, a second clean water tank 220 and a second sewage tank 230, and the second clean water tank 220 and the second sewage tank 230 are detachably connected to the base station body 210. The third water outlet 223 of the second clean water tank 220 is used to communicate with the water inlet 124 of the first clean water tank 120, and the fourth water inlet 231 of the second sewage tank 230 is used to communicate with the liquid outlet 135 of the first sewage tank 130. When the cleaning device performs a cleaning task, the first accommodating chamber 121 can be placed in a positive pressure state and the second accommodating chamber 131 can be placed in a negative pressure state by means of a reversing mechanism, a first air pump 144 and a second air pump 145, so that the clean water in the first accommodating chamber 121 is supplied to the cleaning assembly and the sewage generated during the cleaning process is absorbed into the second accommodating chamber 131. When the cleaning device 100 is docked with the base station 200, that is, when it moves to a preset position in the base station body 210, the first accommodating chamber 121 can be placed in a negative pressure state through the reversing mechanism, the first air pump 144 and the second air pump 145, so that the clean water in the second clean water tank 220 of the base station 200 is absorbed into the first accommodating chamber 121, thereby replenishing the first clean water tank 120, and the second accommodating chamber 131 is placed in a positive pressure state, so that the sewage in the second accommodating chamber 131 is discharged into the second sewage tank 230 of the base station 200, thereby draining the first sewage tank 130.

[0089] It is worth mentioning that when the cleaning device 100 includes only one water tank, for example, only the first clean water tank 120, the electric device corresponding to the second sewage tank 230 or the external drainage unit can be omitted on the base station used in conjunction with the cleaning device 100, and the positive and negative pressure switching in the first clean water tank 120 is realized through the reversing mechanism and the electric device connected to the first clean water tank 120 according to the state of the cleaning device 100. Similarly, when the cleaning device 100 includes only the first sewage tank 130, the electric device corresponding to the second clean water tank 220 or the external water supply unit can be omitted on the base station used in conjunction with the cleaning device 100, and the positive and negative pressure switching in the first sewage tank 130 is realized through the reversing mechanism and the electric device connected to the first sewage tank 130 according to the state of the cleaning device 100.

[0090] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely exemplary and are not intended to limit the scope of the present application to this. Those of ordinary skill in the art may make various changes and modifications therein without departing from the scope and spirit of the present application. All these changes and modifications are intended to be included within the scope of the present application as required by the appended claims.

Claims

1. A cleaning device, characterized in that: include: Equipment body; A driving assembly, the driving assembly being connected to the device body and used to drive the device body to move on the surface to be cleaned; A first water tank, the first water tank is installed on the equipment body, the first water tank has a first accommodating cavity and a vent, a water inlet and a water outlet communicated with the first accommodating cavity; a first air pump, the first air pump having a first air outlet and a first air inlet; a switching mechanism, the switching mechanism being used to switch the vent between being connected to the first air outlet and being connected to the first air inlet; When the vent is connected to the first air outlet, the first air pump can generate positive pressure in the first accommodating chamber so that the liquid in the first accommodating chamber leaves the first accommodating chamber through the water outlet; When the air vent is connected to the first air inlet, the first air pump can generate negative pressure in the first accommodating chamber to allow liquid outside the first accommodating chamber to enter the first accommodating chamber through the water inlet.

2. The cleaning device according to claim 1, characterized in that The reversing mechanism includes an actuating assembly and a connecting pipe, wherein the actuating assembly is used to drive the connecting pipe to move so that the connecting pipe connects the air vent and the first air inlet or connects the air vent and the first air outlet.

3. The cleaning device according to claim 2, characterized in that: The vent includes a first vent and a second vent; The actuating assembly is used to drive the connecting pipe to move so that the connecting pipe switches between the first position and the second position; When the connecting tube is in the first position, the connecting tube is connected to the first vent and the first air outlet, and the first air pump can supply air to the first accommodating chamber to generate positive pressure in the first accommodating chamber; When the connecting tube is in the second position, the connecting tube is connected to the second air vent and the first air inlet, and the first air pump can extract gas in the first accommodating chamber to generate negative pressure in the first accommodating chamber.

4. The cleaning device according to claim 3, characterized in that: A first leak-proof valve is disposed at the first vent, and the first leak-proof valve is configured to open the first vent when the connecting pipe is in the first position, and to close the first vent when the connecting pipe is in the second position; A second leak-proof valve is disposed at the second vent, and the second leak-proof valve is configured to close the second vent when the connecting pipe is in the first position, and to open the second vent when the connecting pipe is in the second position.

5. The cleaning device according to claim 3, characterized in that: The connecting pipe comprises a first butt joint pipe and a second butt joint pipe; When the connecting pipe is in the first position, two ends of the first butt joint pipe are respectively connected to the first air vent and the first air outlet, and the second butt joint pipe is separated from the second air vent and the first air inlet; When the connecting pipe is in the second position, the first butt joint pipe is separated from the first air vent and the first air outlet, and two ends of the second butt joint pipe are respectively connected to the second air vent and the first air inlet.

6. The cleaning device according to claim 1, characterized in that The cleaning device further comprises a second water tank and a second air pump, wherein the second water tank has a second accommodating chamber and an air permeable port, a liquid inlet and a liquid outlet communicated with the second accommodating chamber; the second air pump has a second air outlet and a second air inlet; The reversing mechanism is used to switch the air vent between being connected to the second air outlet and being connected to the second air inlet; When the air vent is connected to the second air outlet, the second air pump can generate positive pressure in the second accommodating chamber so that the liquid in the second accommodating chamber leaves the second accommodating chamber through the liquid outlet; When the air permeable port is connected to the second air inlet, the second air pump can generate negative pressure in the second accommodating chamber so that the liquid outside the second accommodating chamber enters the second accommodating chamber through the liquid inlet; The reversing mechanism is also used to connect the air vent with the second air outlet while connecting the air vent with the first air inlet; and the reversing mechanism is used to connect the air vent with the second air inlet while connecting the air vent with the first air outlet.

7. The cleaning device according to claim 6, characterized in that The reversing mechanism includes an actuating assembly and a connecting pipe, and the actuating assembly is used to drive the connecting pipe to move so that the connecting pipe connects the air vent and the first air inlet and connects the air port and the second air outlet, or connects the air vent and the first air outlet and connects the air port and the second air inlet.

8. The cleaning device according to claim 7, characterized in that The vent includes a first vent and a second vent; The ventilation opening comprises a first ventilation opening and a second ventilation opening; The actuating assembly is used to drive the connecting pipe to move so that the connecting pipe switches between the first position and the second position; When the connecting tube is in the first position, the connecting tube is connected to the first air vent and the first air outlet, and the first air pump can deliver air to the first accommodating chamber to generate a positive pressure in the first accommodating chamber; the connecting tube is also connected to the first air vent and the second air inlet, and the second air pump can extract gas in the second accommodating chamber to generate a negative pressure in the second accommodating chamber; When the connecting tube is in the second position, the connecting tube connects the second air vent and the first air inlet, and the first air pump can extract gas from the first accommodating chamber to generate negative pressure in the first accommodating chamber; the connecting tube also connects the second air vent and the second air outlet, and the second air pump can supply gas to the second accommodating chamber to generate positive pressure in the second accommodating chamber.

9. The cleaning device according to claim 8, characterized in that A first leak-proof valve is disposed at the first vent, and the first leak-proof valve is configured to open the first vent when the connecting pipe is in the first position, and to close the first vent when the connecting pipe is in the second position; A second leak-proof valve is provided at the second vent, and the second leak-proof valve is configured to close the second vent when the connecting pipe is in the first position, and to open the second vent when the connecting pipe is in the second position; A third leak-proof valve is provided at the first air vent, and the third leak-proof valve is configured to open the first air vent when the connecting pipe is in the first position, and to close the first air vent when the connecting pipe is in the second position; A fourth leak-proof valve is provided at the second air vent, and the fourth leak-proof valve is configured to close the second air vent when the connecting pipe is in the first position, and to open the second air vent when the connecting pipe is in the second position.

10. The cleaning device according to claim 8, characterized in that The connecting pipes include a first butt joint pipe, a second butt joint pipe, a third butt joint pipe and a fourth butt joint pipe; When the connecting pipe is in the first position, the two ends of the first butt joint pipe are respectively connected to the first air vent and the first air outlet, and the second butt joint pipe is separated from the second air vent and the first air inlet; the two ends of the third butt joint pipe are respectively connected to the first air vent and the second air inlet, and the fourth butt joint pipe is separated from the second air vent and the second air outlet; When the connecting tube is in the second position, the first butt joint tube is detached from the first air vent and the first air outlet, and the two ends of the second butt joint tube are respectively connected to the second air vent and the first air inlet; the third butt joint tube is detached from the first air vent and the second air inlet, and the two ends of the fourth butt joint tube are respectively connected to the second air vent and the second air outlet.

11. A cleaning system, characterized in that: include: The cleaning device according to any one of claims 1 to 10; A base station, the base station comprising a base station body and a third water tank, the third water tank being detachably connected to the base station body; When the cleaning device is docked with the base station, the third water tank is used to communicate with the water outlet, the reversing mechanism enables the vent to communicate with the first air outlet, and the first air pump can generate positive pressure in the first accommodating chamber to allow the liquid in the first accommodating chamber to enter the third water tank through the water outlet; or, When the cleaning device is docked with the base station, the third water tank is used to connect with the water inlet, the reversing mechanism connects the vent with the first air inlet, and the first air pump can generate negative pressure in the first containing chamber so that the liquid in the third water tank enters the first containing chamber through the water inlet.

12. A cleaning system, characterized in that: include: The cleaning device according to any one of claims 1 to 10; A base station, the base station comprising a base station body and a sewage pipe arranged on the base station body, the sewage pipe being used to communicate with an external drainage unit; When the cleaning device is docked with the base station, the drain pipe is used to connect with the water outlet, the reversing mechanism connects the vent with the first air outlet, and the first air pump can generate positive pressure in the first accommodating chamber so that the liquid inside the first accommodating chamber enters the external drainage unit through the water outlet and the drain pipe.

13. A cleaning system, characterized in that: include: The cleaning device according to any one of claims 1 to 10; A base station, the base station comprising a base station body and a water inlet pipe arranged on the base station body, the water inlet pipe being used to be connected to an external water supply unit; When the cleaning device is docked with the base station, the external water supply unit is connected to the water inlet through the water inlet pipe, the reversing mechanism connects the vent with the first air inlet, and the first air pump can generate negative pressure in the first containing chamber to allow liquid from the external water supply unit to enter the first containing chamber through the water inlet pipe and the water inlet.

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