Automatic water exchange assembly and self-cleaning maintenance station

Abstract

The present disclosure provides a water automatic exchange assembly (7000) and a self-cleaning maintenance station. The water automatic exchange assembly (7000) includes a control device (7100) and a water tank assembly (7200). The control device (7100) is configured to realize automatic addition of clean water, automatic discharge of sewage, or automatic addition of cleaning liquid to the water tank assembly (7200). The water tank assembly (7200) is configured to be assembled in a water storage chamber (2700) of the self-cleaning maintenance station. The water tank assembly (7200) includes a sewage tank (5000), a clean water tank (4000), and a water tank top shell (7300). The water tank top shell (7300) substantially covers the sewage tank (5000) and the clean water tank (4000). The water tank top shell (7300), the sewage tank (5000), and the clean water tank (4000) form an integral structure. When the water tank assembly (7200) is assembled in the water storage chamber (2700) of the self-cleaning maintenance station, a part of the tank body of the water tank assembly (7200) is disposed outside the water storage chamber (2700). The present disclosure designs the water tank assembly (7200) as an integral structure, which facilitates the assembly of the water tank and at the same time provides an integral structure convenient for automatic addition of clean water and automatic discharge of sewage in the water tank.

Description

Related Applications 【0001】 This application claims priority to Chinese Patent Applications 202210574202.1, 202210573204.9, and 202210573525.9, filed on May 25, 2022, and all the disclosure contents of the Chinese patent applications are incorporated herein by reference as part of this application. 【Technical Field】 【0002】 This disclosure relates to the technical field of cleaning devices, specifically to a water automatic exchange assembly and a self-cleaning maintenance station. 【Background Art】 【0003】 In recent years, with the popularization of automatic cleaning devices, the functions of automatic cleaning devices have become more and more numerous. In particular, the application of automatic cleaning devices that integrate various functions such as sweeping, dust suction, mopping, dust removal, and mop cloth washing has increased. 【0004】 In the existing technology, through a self-cleaning maintenance station, automatic dust collection and mop cloth washing of the automatic cleaning device are performed. Therefore, it is necessary to add clean water to the self-cleaning maintenance station and remove the dirty water therein at the same time. Currently, all the methods of adding clean water and removing dirty water in the self-cleaning maintenance station are performed manually, which brings inconvenience to the application of the automatic cleaning device. Furthermore, in the split design of the water tank structure in the existing technology, it is not easy to detach the water tank, which brings inconvenience to the application of the water tank. 【Summary of the Invention】 【0005】 Embodiments of this disclosure provide a water automatic exchange assembly and a self-cleaning maintenance station, specifically as follows. 【0006】 Embodiments of the present disclosure provide an automatic water exchange assembly comprising a control device and a water tank assembly, wherein the control device is configured to enable automatic addition of clean water, automatic discharge of contaminated water, or automatic addition of cleaning solution to the water tank assembly, and the water tank assembly is configured to be assembled in the water storage chamber of a self-cleaning maintenance station. The water tank assembly includes a wastewater tank, a clean water tank, and a water tank top shell, the water tank top shell substantially covers the wastewater tank and the clean water tank, and the water tank top shell, the wastewater tank, and the clean water tank form a single integrated structure. Here, when the water tank assembly is assembled inside the water storage chamber of the self-cleaning maintenance station, a portion of the tank body of the water tank assembly is positioned outside the water storage chamber. 【0007】 In some embodiments, the wastewater tank and the clean water tank are located below the water tank top shell at a predetermined distance apart. 【0008】 In some embodiments, an inwardly formed recess is provided on the outer wall on the same side of the wastewater tank and the clean water tank, and a wastewater outlet and a clean water outlet are provided penetrating upward from the top of the recess, the wastewater outlet is configured to draw wastewater into the wastewater tank, and the clean water outlet is configured to draw clean water from the clean water tank. 【0009】 In some embodiments, a water inlet is provided on one side of the water tank top shell, the water inlet is connected to the clean water tank, and the control device enables automatic replenishment of clean water from the clean water tank. 【0010】 In some embodiments, a water overflow port is further provided on one side of the water tank top shell, and the water overflow port is connected to the clean water tank, so that when the clean water tank is full, the water in the clean water tank is automatically discharged through the water overflow port. 【0011】 In some embodiments, a drain is further provided on one side of the water tank top shell, the drain is connected to the wastewater tank, and when the wastewater tank is full, the water in the wastewater tank is automatically drained through the drain. 【0012】 In some embodiments, a sensor is provided on the outer wall of the wastewater tank or the clean water tank, which is configured to detect when the wastewater tank and the clean water tank are assembled in a predetermined position. 【0013】 In some embodiments, the water tank top shell includes a removable water tank top cover, and the tops of the wastewater tank and clean water tank extend into the water tank top shell. 【0014】 In some embodiments, the side walls of the water tank top shell extend downward along the side walls of the wastewater tank and the clean water tank, forming a U-shape that encloses the side walls of the wastewater tank and the clean water tank. 【0015】 In some embodiments, the side walls of the U-shaped water tank top shell are aligned with the outer wall edge of the water storage chamber, and when the water tank assembly is assembled inside the water storage chamber, the side walls of the U-shaped water tank top shell are positioned collectively outside the water storage chamber. 【0016】 In some embodiments, the side wall of the wastewater tank includes at least one first recess extending upward along the bottom of the wastewater tank, and the side wall of the clean water tank includes at least one second recess extending upward along the bottom of the clean water tank, wherein the first and second recesses are limited to the assembly positions of the wastewater tank and the clean water tank. 【0017】 In some embodiments, the wastewater tank and the clean water tank are made of transparent material in order to observe the liquid levels in the wastewater tank and the clean water tank. 【0018】 In some embodiments, the purified water tank contains: A purified water float ball base is provided at the bottom of the purified water tank body, A clean water float ball is provided, which is connected to the clean water float ball base and is configured to detect the water level, and if the water level is below a first predetermined threshold, the control device opens the control water inlet and automatically adds clean water to the clean water tank. 【0019】 In some embodiments, the purified water tank contains: A cleaning fluid float ball base is provided at the bottom of the cleaning fluid tank body, A cleaning liquid float ball is further provided, which is connected to the cleaning liquid float ball base and is configured to detect the liquid level of the cleaning liquid, and if the liquid level is higher than a second predetermined threshold, the control device controls the peristaltic pump to add cleaning liquid to the clean water tank. 【0020】 In some embodiments, the wastewater tank contains: A wastewater float ball is further provided, which is installed at the top of the wastewater tank and is configured to detect the level of wastewater. If the level is higher than a third predetermined threshold, the control device sequentially opens the wastewater pump and the drain valve, thereby automatically discharging the wastewater from the drain into the wastewater tank. 【0021】 Embodiments of the present disclosure further provide an automatic water exchange assembly comprising a main control box and a water tank assembly, wherein one end of the main control box is connected to a water source via a first external water pipe, and the other end is connected to the water tank assembly via a second external water pipe, the main control box comprising a first solenoid valve, a low-pressure switch, and a high-pressure switch, the low-pressure switch and the high-pressure switch generating corresponding trigger signals based on the water pressure state of the second external water pipe, the first solenoid valve being opened or closed in response to the trigger signals, thereby controlling whether water in the water source flows into the second external water pipe via the first external water pipe. 【0022】 In some embodiments, the water tank assembly includes a second solenoid valve, and the main control box is configured to, in response to the opening of the second solenoid valve, cause the low-pressure switch to generate a low-pressure trigger signal, and in response to the low-pressure trigger signal, cause the first solenoid valve to open, so that the water in the water source flows into the second external water pipe through the first external water pipe, and thus into the water tank assembly. 【0023】 In some embodiments, the main control box is configured to, in response to the closing of the second solenoid valve, cause the high-pressure switch to generate a high-pressure trigger signal, and in response to the high-pressure trigger signal, cause the first solenoid valve to close. 【0024】 In some embodiments, the main control box includes a box body having a box body water inlet and a box body water outlet. The box body water inlet is connected to the water source through the first external water pipe, and the box body water outlet is connected to the water tank assembly through the second external water pipe. 【0025】 In some embodiments, the main control box further includes a first water pipe provided in the box body and having one end connected to the box body water inlet, a second water pipe provided in the box body and having one end connected to the box body water outlet and the other end connected to the first water pipe, and a third water pipe provided in the box body and provided between the first water pipe and the second water pipe. Here, the first solenoid valve is provided on the first water pipe, the high-pressure switch is provided on the second water pipe, and the low-pressure switch is provided on the third water pipe. 【0026】 In some embodiments, the main control box further includes a main controller provided in the box body and electrically connected to the first solenoid valve, the low-pressure switch, and the high-pressure switch, and configured to control the opening and closing of the first solenoid valve based on the trigger signal. 【0027】 In some embodiments, the main control box is The present invention further includes a pressure-retaining airbag box configured to replenish the liquid in the third water tube and the second water tube when the liquid pressure in the second external water tube decreases. 【0028】 In some embodiments, the main control box is The present invention further includes a pressure-retaining airbag box that is in fluid communication with the first, second, and third water tubes, respectively, and is configured to replenish the liquid in the pressure-retaining airbag box to the first, second, and / or third water tubes when the liquid pressure in the first, second, and / or third water tubes decreases. 【0029】 In some embodiments, the main control box is The system further includes a four-way tube having four communication ports, each connected to the first water pipe, the second water pipe, the third water pipe, and the pressure-retaining airbag box, the pressure-retaining airbag box being in liquid communication with the first water pipe, the second water pipe, and the third water pipe, respectively, via the four-way tube. 【0030】 In some embodiments, the pressure-retaining airbag box is, A pressure-retaining airbag box housing with an opening at the top, The system includes an airbag provided within the pressure-retaining airbag box housing and configured to elastically expand and contract in accordance with the amount of liquid entering and exiting the airbag through the opening. 【0031】 In some embodiments, the airbag is An airbag body provided within the aforementioned pressure-retaining airbag box housing and configured to elastically expand and contract in accordance with the amount of liquid entering and exiting the airbag, An airbag end provided at the top of the airbag body and substantially flush with the end of the pressure-retaining airbag box, wherein the airbag end has an airbag opening for liquid to enter and exit, The airbag includes an airbag neck provided between the airbag body and the airbag end. 【0032】 In some embodiments, the pressure-retaining airbag box is, The assembly further includes an assembly member having a central hole, which is sleeved onto the airbag neck through the central hole, and then the airbag end is assembled into the opening of the pressure-retaining airbag box housing. 【0033】 In some embodiments, the assembly member is It further includes a recessed surface provided on the top surface of the assembly member surrounding the central hole and configured to fit the end of the airbag. 【0034】 In some embodiments, the assembly member is The assembly further includes an edge portion that surrounds the top surface of the assembly member and extends outward, and is configured to be provided around the opening of the pressure-retaining airbag box housing. 【0035】 In some embodiments, the pressure-retaining airbag box is, The present invention further includes a cover body assembled to the pressure-retaining airbag box housing, configured to seal the airbag within the pressure-retaining airbag box housing after the edges are firmly pressed. 【0036】 In some embodiments, the main controller is further configured to acquire a first time difference when the water pressure in the water circuit decreases, when a change occurs in the trigger state of the high-pressure switch and the low-pressure switch, and to determine that there is a water pipe leak when the first time difference is within a first predetermined range, and to control the illumination of the water pipe leak signal lamp. 【0037】 In some embodiments, the main controller is further configured to acquire a second time difference when the water pressure in the water circuit decreases, and when the high-pressure switch and low-pressure switch trigger states change, and when the second time difference is within a second predetermined range, it determines that a water pipe has burst and controls the lighting of the water pipe burst signal lamp. 【0038】 In some embodiments, the main controller is further configured to acquire a third time difference between when the high-pressure switch and the low-pressure switch are triggered when the water pressure in the water circuit decreases, and to determine that normal water replenishment has occurred when the third time difference is within a third predetermined range, and to control the illumination of the normal water replenishment signal lamp. 【0039】 In some embodiments, the main control box is further modified as follows: The second solenoid valve is closed within a first predetermined time period, and the first solenoid valve is closed within a second predetermined time period, where the second predetermined time period overlaps with the first predetermined time period at least partially. The system is configured to determine that there is no rupture in the water pipe if the high-pressure switch is continuously triggered during the period in which the second predetermined time period overlaps with the first predetermined time period. 【0040】 Embodiments of the present disclosure further provide an automatic water exchange assembly comprising a control device and a water tank assembly, wherein the control device is located inside the water tank assembly and is configured to enable the automatic addition of clean water or cleaning solution to the water tank assembly. The water tank assembly includes a water tank top shell and a clean water tank, the water tank top shell covers the clean water tank, and the clean water tank includes a clean water tank body and a cleaning solution tank body. Here, a water volume detection assembly is provided inside the clean water tank body, and in response to the water volume detection assembly detecting that the water volume inside the clean water tank body has reached a predetermined value, the control device is configured to automatically add a predetermined amount of cleaning liquid from the cleaning liquid tank body into the clean water tank body. 【0041】 In some embodiments, the purified water tank includes a purified water tank top cover that covers the purified water tank body, and the purified water tank top cover extends into the water tank top shell. 【0042】 In some embodiments, the clean water tank top cover includes a groove, and a peristaltic pump is provided in the groove, configured to pump the cleaning liquid from the cleaning liquid tank body into the clean water tank body under the control of the control device. 【0043】 In some embodiments, the peristaltic pump has a liquid inlet and a liquid outlet, the liquid inlet extending near the bottom of the cleaning fluid tank body via a first liquid transport pipe, and the liquid outlet extending into the clean water tank body via a second liquid transport pipe, thereby pumping the cleaning fluid from the cleaning fluid tank body into the clean water tank body. 【0044】 In some embodiments, the cleaning fluid tank body includes a cleaning fluid passage, which extends upward from the inside of the cleaning fluid tank body along the outside of the clean water tank body to the clean water tank top cover, adding cleaning fluid to the cleaning fluid tank body. 【0045】 In some embodiments, the cleaning solution tank body contains: A cleaning fluid float ball base is provided at the bottom of the cleaning fluid tank body, A cleaning liquid float ball is provided, which is connected to the cleaning liquid float ball base and detects the liquid level of the cleaning liquid. If the cleaning solution level is below the second predetermined threshold, the addition of cleaning solution to the clean water tank body is stopped under the control of the control device. 【0046】 In some embodiments, the water tank assembly includes a cleaning solution status indicator lamp, which is controlled to illuminate when the cleaning solution level is below a second predetermined threshold. 【0047】 In some embodiments, the side walls of the water tank top shell extend downward along the side walls of the purified water tank, forming a U-shape that encloses the side walls of the purified water tank body. 【0048】 In some embodiments, the clean water tank body contains: A purified water float ball base is provided at the bottom of the purified water tank body, A clean water float ball is provided, which is connected to the clean water float ball base and configured to detect the water level. If the water level is below a first predetermined threshold, the control device opens the water inlet and automatically adds clean water to the clean water tank. 【0049】 In some embodiments, the water level detection assembly includes a full water level detection sensor. Responding to the detection by the water volume detection assembly that the water volume has reached a predetermined value includes responding to the detection by the full water level detection sensor that the water volume in the clean water tank body has reached or is approaching the full water level. 【0050】 In some embodiments, the water volume detection assembly includes a water presence detection sensor. Responding to the detection by the water volume detection assembly that the water volume has reached a predetermined value includes responding to the detection by the water presence / absence detection sensor that the water volume in the clean water tank body has reached an anhydrous level. 【0051】 Embodiments of the present disclosure further provide a self-cleaning maintenance station comprising a water storage chamber, the water storage chamber being configured to house an automatic water exchange assembly as described in any one of the above. 【0052】 The embodiments of this disclosure have the following technical effects. 【0053】 The automatic water exchange assembly provided by the embodiments of this disclosure can achieve automatic replenishment of clean water, automatic discharge of wastewater, or automatic replenishment of cleaning solution in a clean water tank by controlling the water tank assembly with a control device, thereby freeing up human labor and improving cleaning efficiency. Furthermore, by designing the water tank assembly as an integrated structure, the assembly of the water tank is made easier, while simultaneously providing an integrated structure that is convenient for applications such as automatic replenishment of clean water and automatic discharge of wastewater from the water tank. 【0054】 The automatic water exchange assembly provided by the embodiments of this disclosure can achieve automatic replenishment of clean water to the clean water tank by adding a main control box, thereby freeing up human labor and improving cleaning efficiency. Furthermore, by adding a pressure-retaining airbag box, if a water pipe bursts or leaks, it can promptly detect the leak or burst in the water pipe, promptly shut off the water source, issue an alarm, and avoid the risk of water leakage. 【0055】 The automatic water exchange assembly provided by the embodiments of this disclosure detects when the amount of water in the clean water tank reaches a predetermined value using a water volume detection assembly in the clean water tank body. When the predetermined value is reached, it automatically adds a predetermined amount of cleaning solution to the clean water tank body under the control of a control device. This enables the addition of a predetermined amount of cleaning solution according to the amount of water in the clean water tank, thereby achieving automatic and accurate addition of cleaning solution. [Brief explanation of the drawing] 【0056】 The accompanying drawings herein are incorporated into this specification and constitute part of this specification, illustrating embodiments conforming to the disclosure and are used together with the specification to interpret the principles of the disclosure. Clearly, the accompanying drawings in the following description are only a few embodiments of the disclosure, and those skilled in the art can, without creative work, derive other drawings based on these accompanying drawings. [Figure 1] This is a schematic diagram showing the overall structure of a self-cleaning maintenance station in some embodiments of the present disclosure. [Figure 2]This is a schematic diagram showing the main structure of a self-cleaning maintenance station in some embodiments of the present disclosure. [Figure 3] This is a schematic diagram showing the three-dimensional structure of an automatic water exchange assembly in some embodiments of the present disclosure. [Figure 4] This is a schematic bottom view of an automatic water exchange assembly in some embodiments of the present disclosure. [Figure 5] This is a schematic diagram showing the front structure of an automatic water exchange assembly in some embodiments of the present disclosure. [Figure 6] This block diagram shows the structure of an automatic water exchange assembly in some embodiments of the present disclosure. [Figure 7] This is a schematic diagram showing the internal structure of the main control box in some embodiments of the present disclosure. [Figure 8] This is a schematic diagram showing the three-dimensional structure of the main control box in some embodiments of the present disclosure. [Figure 9] This is a schematic diagram showing a cross-sectional view of the main control box in some embodiments of the present disclosure. [Figure 10] This is a schematic diagram showing the airbag structure of several embodiments of the present disclosure. [Figure 11] This is a schematic diagram showing the structure of an assembly member of several embodiments of the present disclosure. [Figure 12] This is a timing diagram showing the determination of water pipe rupture in some embodiments of the present disclosure. [Figure 13] This is a schematic diagram showing the structure of the top shell of an automatic water exchange assembly in some embodiments of the present disclosure. [Figure 14] This is a cross-sectional view of a purified water tank in some embodiments of the present disclosure. [Figure 15] This is a schematic diagram showing a cross-sectional view of the clean water tank and float valve of some embodiments of the present disclosure. [Figure 16] This is a schematic diagram showing the overall structure of a floating valve in some embodiments of the present disclosure. [Figure 17] This is a schematic diagram showing the floating valve blocking water circuit structure of some embodiments of the present disclosure. [Figure 18]This is a schematic diagram showing the plug structure of several embodiments of the present disclosure. [Figure 19] This is a schematic diagram showing the fixed sleeve shell structure of several embodiments of the present disclosure. [Figure 20] This is a schematic diagram showing the wastewater tank structure of some embodiments of the present disclosure. [Modes for carrying out the invention] 【0057】 To further clarify the purpose, technical solutions, and advantages of this disclosure, the disclosure will be described in more detail below with reference to the accompanying drawings, although obviously the embodiments described are only a selection of the embodiments of this disclosure, not all of them. Any other embodiments that a person skilled in the art could obtain without creative work based on the embodiments of this disclosure are all covered by this disclosure. 【0058】 The terms used in the embodiments of this disclosure are used solely for the purpose of describing specific embodiments and are not intended to limit the disclosure. The singular forms “one,” “the said,” and “the said” as used in the embodiments of this disclosure and the appended claims are also intended to include plural forms, and “plural” generally includes at least two unless the context explicitly indicates otherwise. 【0059】 The terms "and / or" as used herein merely describe the relationship between related objects, and there are three possible relationships. For example, A and / or B means that A may exist alone, A and B may exist simultaneously, or B may exist alone. In addition, " / " in this specification generally indicates that the preceding and succeeding related objects are in an "or" relationship. 【0060】 In the embodiments of this disclosure, terms such as First, Second, Third, etc., may be used for illustrative purposes, but it should be understood that these terms should not be used as a limiting factor. These terms are used solely for distinction. For example, the First may also be called the Second, and similarly, the Second may also be called the First, as long as it does not deviate from the scope of the embodiments of this disclosure. 【0061】 Furthermore, the terms “includes,” “equipped with,” or any other variations thereof are intended to cover non-exclusive inclusion, and it should be noted that a product or apparatus containing a set of elements includes not only those elements but also other elements explicitly listed, or elements specific to those products or apparatus. Unless further limited, an element defined by the expression “includes…” does not exclude the presence of other identical elements in a product or apparatus containing such element. 【0062】 Selective embodiments of this disclosure will be described in detail below with reference to the attached drawings. 【0063】 In related technologies, the structure of self-cleaning maintenance stations is usually complex. The water tank is located inside a complex hood cover of the self-cleaning maintenance station, and clean water is added and dirty water is removed manually. When the water in the clean water tank runs low, clean water must be added manually, which reduces cleaning efficiency. When the dirty water tank is full, dirty water must be poured in manually, which reduces cleaning efficiency and increases the risk of dirty water overflow. The application is not sufficiently convenient. The external structure of the water tank is too cluttered and not neat and aesthetically pleasing. Also, since the water tank connection port is located at the bottom of the water tank, the water in the tank is prone to overflowing, which often damages the components inside the self-cleaning maintenance station. 【0064】 Therefore, embodiments of this disclosure provide an automatic water exchange assembly comprising a one-piece water tank top shell, a wastewater tank, and a clean water tank, the water tank assembly capable of automatic clean water addition, automatic wastewater discharge, or automatic cleaning solution addition, freeing up human labor, automatically adding clean water when the clean water tank runs low, improving cleaning efficiency, and automatically pumping out wastewater when the wastewater tank is full, improving cleaning efficiency while simultaneously reducing the risk of wastewater overflow. Furthermore, the one-piece automatic water exchange assembly has a simpler and more aesthetically pleasing external form, and by designing the water tank assembly as a single unit, it simplifies the assembly of the water tank while also providing a convenient one-piece structure for applications such as automatic clean water addition and automatic wastewater discharge of the water tank. 【0065】 Specifically, the automatic water exchange assembly provided by the embodiments of this disclosure is assembled in a self-cleaning maintenance station. As an example, Figure 1 is a schematic diagram illustrating the complete overall structure of the automatic water exchange assembly assembled in a self-cleaning maintenance station. Figure 2 is a schematic diagram illustrating the separate structure of the automatic water exchange assembly and the self-cleaning maintenance station. 【0066】 To more clearly explain the structure of the automatic water exchange assembly, the following directions are defined with reference to a self-cleaning maintenance station: The self-cleaning maintenance station is defined by three mutually perpendicular axes: the lateral axis Y, the longitudinal axis X, and the central vertical axis Z. The direction opposite to the arrow along the longitudinal axis X, i.e., the direction in which the automatic cleaning device enters the self-cleaning maintenance station, is defined as "rear," and the direction of the arrow along the longitudinal axis X, i.e., the direction in which the automatic cleaning device leaves the self-cleaning maintenance station, is defined as "forward." The lateral axis Y is substantially the direction along the width of the self-cleaning maintenance station body. The vertical axis Z is the direction extending upward along the bottom surface of the self-cleaning maintenance station. Here, the directions of the automatic water exchange assembly are described by XYZ under normal application conditions. As shown in Figure 1, the direction in which the bottom plate of the self-cleaning maintenance station protrudes from the self-cleaning maintenance station body is forward, the direction toward the rear wall of the self-cleaning maintenance station body is rear, the automatic water exchange assembly 7000 is located on the right side of the self-cleaning maintenance station, and the dust collection chamber 2100 is located on the left side of the self-cleaning maintenance station. 【0067】 As shown in Figure 1, the self-cleaning maintenance station provided by this embodiment comprises a self-cleaning maintenance station base plate 1000, a self-cleaning maintenance station body 2000, and an automatic water exchange assembly 7000 and a dust collection hood 2800 provided on the self-cleaning maintenance station body 2000, wherein the self-cleaning maintenance station base plate 1000 is detachably or non-detachably connected to the self-cleaning maintenance station body 2000, thereby facilitating the transport and maintenance of the self-cleaning maintenance station base plate 1000 and the self-cleaning maintenance station body 2000. The lower part of the self-cleaning maintenance station body 2000 and the body base 6000 form a cleaning chamber that opens forward, and the cleaning chamber is used to accommodate the automatic cleaning device when the automatic cleaning device returns to the self-cleaning maintenance station for maintenance operations. A cleaning groove 6200 is provided on the self-cleaning maintenance station body base 6000 and is configured to clean the cleaning members on the automatic cleaning device through the cleaning groove after the automatic cleaning device has been fitted into the cleaning chamber. 【0068】 As shown in Figure 2, the self-cleaning maintenance station body 2000 includes a water storage chamber 2700 and a dust collection chamber 2100, the water storage chamber 2700 is located at the top of the self-cleaning maintenance station body 2000 and opens upward and forward, the water storage chamber includes a clean water chamber 2400 and a wastewater chamber 2300 for housing the clean water tank of the automatic water exchange assembly 7000, the dust collection chamber 2100 is located at the top of the self-cleaning maintenance station body 2000 and opens upward and forward alongside the water storage chamber 2700, the water storage chamber The design of the 2700 and dust collection chamber 2100 to be upward and forward facilitates the attachment and detachment of the automatic water exchange assembly 7000 and the dust collection hood 2800, both of which are assembled on the self-cleaning maintenance station body 2000 from the front and upward direction. This structural design is in line with the user's usage habits, and furthermore, the upward and forward design facilitates the daily maintenance of the elements within the water storage chamber 2700 and the dust collection chamber 2100. 【0069】 As shown in Figure 2, the water storage chamber 2700 and the dust collection chamber 2100 are surrounded by the rear wall, front wall and multiple side walls of the self-cleaning maintenance station body 2000. The rear and front walls of the water storage chamber 2700 and the dust collection chamber 2100 are coplanar, and one side wall is also coplanar. Here, the height of the rear wall of the self-cleaning maintenance station body 2000 is greater than the height of the front wall of the self-cleaning maintenance station body 2000. The side walls of the self-cleaning maintenance station body 2000 are connected to the rear and front walls, and the end faces of the side walls of the self-cleaning maintenance station body 2000 have an arc-shaped structure. The water storage chamber 2700 and dust collection chamber 2100 are designed to be positioned upward and forward, which facilitates the attachment and detachment of the clean water tank and dust collection hood 2800 of the automatic water exchange assembly 7000. Hereinafter, the arc-shaped structure ensures the stability and aesthetics of the automatic water exchange assembly 7000 and dust collection hood 2800 attached to the water storage chamber 2700 and dust collection chamber 2100. 【0070】 The water storage chamber 2700 is used to house an automatic water exchange assembly 7000 (including a wastewater tank 5000 and a clean water tank 4000), and a tab 2600 is provided inside the water storage chamber 2700 that is in close contact with the rear wall of the water storage chamber 2700 and extends upward along the bottom of the water storage chamber 2700 to a height slightly lower than the height of the rear wall of the water storage chamber, and a plurality of projection openings are provided on the top of the tab, the projection openings being made of a soft rubber material but not limited to it, and the projection openings are used to connect to the wastewater tank 5000 or the clean water tank 4000 assembled at the corresponding positions. Herein, a vertically extending partition plate 2710 is provided inside the water storage chamber 2700, dividing the water storage chamber 2700 into two parts, one of which is used to house the wastewater chamber 2300 of the wastewater tank 5000 and the other part is used to house the clean water chamber 2400 of the clean water tank 4000. The upper part of the tab may be the top of the tab, or a tab side wall that is higher than the highest water level line of the clean water tank and wastewater tank in the assembled state, but is not particularly limited thereto. 【0071】 In some embodiments, the projection opening includes an air pump port 2610 and a wastewater tank connection port 2620, and is provided corresponding to the top end of the tab 2600 at the assembly position of the wastewater tank 5000. The air pump pumps wastewater through the air pump port 2610, and because the wastewater tank 5000 has a sealed structure, negative pressure is created inside during the pumping process, and wastewater in the cleaning groove is pumped into the wastewater tank 5000 through the wastewater pipe and the wastewater tank connection port 2620. A clean water tank connection port 2630 is provided corresponding to the top end of the tab 2600 at the assembly position of the clean water tank 4000. Clean water in the clean water tank 4000 flows into the scraping member in the cleaning groove through the clean water tank connection port 2630 under the action of a peristaltic pump, and cleans the cleaning head of the automatic cleaning device. The air pump port 2610, wastewater tank connection port 2620, and clean water tank connection port 2630 are located at the top of tab 2600 to prevent water from overflowing from the clean water tank or wastewater tank and flowing into the clean water chamber or wastewater chamber during the replacement process of the clean water tank or wastewater tank. The wastewater tank 5000 and clean water tank 4000 are sealedly connected to the top of the tab 2600 via the air pump port 2610, wastewater tank connection port 2620, and clean water tank connection port 2630, making operation more convenient than connecting at the bottom of the clean water chamber or wastewater chamber. 【0072】 In some embodiments, as shown in Figure 3, the automatic water exchange assembly 7000 comprises a control device 7100 and a water tank assembly 7200, the control device 7100 being located inside the water tank assembly 7200, the control device 7100 including a circuit board and electronic elements provided on the circuit board, the electronic elements being electrically connected to solenoid valves, float ball valves and various sensors within the automatic water exchange assembly 7000, and configured to enable automatic addition of clean water, automatic discharge of dirty water or automatic addition of cleaning solution to the water tank assembly 7200, where the water tank assembly 72 00 includes a wastewater tank 5000, a clean water tank 4000, and a water tank top shell 7300, the water tank top shell substantially covering the wastewater tank and the clean water tank, the rear of the water tank top shell 7300 protruding from the water tank assembly 7200, the water tank assembly 7200 having a substantially L-shaped structure, the wastewater tank 5000 and the clean water tank 4000 extending into the water tank top shell 7300, where the water tank top shell, the wastewater tank and the clean water tank form an integrated structure, thereby making the water tank's external shape neater and more aesthetically pleasing. 【0073】 As shown in Figure 3, the wastewater tank 5000 and the clean water tank 4000 are positioned below the water tank top shell 7300 at a predetermined distance apart. Here, the wastewater tank 5000 is inserted into the wastewater chamber 2300, the clean water tank 4000 is inserted into the clean water chamber 2400, and the partition plate 2710 is inserted into the gap between the wastewater tank 5000 and the clean water tank 4000, thereby stabilizing the automatic water exchange assembly 7000. 【0074】 A recessed portion 7400 is formed inward on the outer wall on the same side of the wastewater tank 5000 and the clean water tank 4000. A wastewater outlet and a clean water outlet are provided at the top of the recessed portion 7400, penetrating upward. The wastewater outlet is configured to draw wastewater into the wastewater tank 5000, and the clean water outlet is configured to draw clean water from the clean water tank 4000. Specifically, the recessed portion 7400 is limited to match at least a portion of the tab 2600, and a clean water inlet, a wastewater inlet, or a limiting pit is provided on the top surface of the recessed portion 7400, and it is connected to the air pump port 2610, wastewater tank connection port 2620, clean water tank connection port 2630, or soft rubber protrusion 2640 provided on the tab 2600 by matching, and the overall limiting by the limiting pit and the soft rubber protrusion 2640 allows the automatic water exchange assembly 7000 to be positioned more precisely in the corresponding location in the water storage chamber 2700, and misalignment of the automatic water exchange assembly 7000 can be avoided. 【0075】 Specifically, as shown in Figure 4, a clean water outlet 7410 is provided on the top surface of the recessed portion 7400 of the clean water tank 4000. When the clean water tank 4000 is assembled in the water storage chamber 2700, the water tank recessed portion 7400 is just supported by the tab 2600 in the water storage chamber 2700, and the water tank clean water outlet 7410 is connected to the protruding opening at the top of the tab 2600. 【0076】 Regarding the wastewater tank 5000, an air pump port 7420 and a wastewater inlet 7440 are further provided on the top surface of the recess 7400, and the air pump port 7420 is connected to an air pump connection port 2610 on the top of the tab 2600. When the air pump connection port 2610 is connected to the air pump port 7420, wastewater can be pumped into the wastewater tank 5000. In some embodiments, the air pump pumps wastewater through the air pump connection port 2610 and the air pump port 7420, and because the wastewater tank 5000 has a sealed structure, a negative pressure is created inside during the pumping process, and the wastewater in the washing groove is pumped into the wastewater tank 5000 through the wastewater pipe, the wastewater inlet 7440, and the wastewater tank connection port 2620. 【0077】 A plurality of pits 7430 may be further provided on the top surface of the recess 7400. When the automatic water exchange assembly 7000 is assembled in the water storage chamber 2700, the top surface of the recess 7400 is just received by the tab 2600 in the water storage chamber 2700, and the plurality of pits provided on the top surface of the recess 7400 align with the soft rubber protrusions on the top of the tab 2600, thereby achieving a limiting of the automatic water exchange assembly 7000. The limiting of the alignment of the soft rubber protrusions 2640 and the pits allows for a more precise positioning of the automatic water exchange assembly 7000 within the water storage chamber 2700 and avoids misalignment of the automatic water exchange assembly 7000. 【0078】 A water inlet 7310 is provided on the rear side of the water tank top shell 7300, and the water inlet 7310 is connected to the clean water tank 4000 via a water pipe, and the control device 7100 enables the automatic replenishment of clean water from the clean water tank 4000. A water overflow port 7320 is further provided on the rear side of the water tank top shell 7300, and the water overflow port 7320 is connected to the clean water tank 4000 via a water pipe, and when the clean water tank 4000 is full, the water in the clean water tank is automatically discharged through the water overflow port 7320 to prevent clean water from flowing into the automatic water exchange assembly 7000 and damaging the components. A drain port 7330 is further provided on the rear side of the water tank top shell, and the drain port is connected to the wastewater tank via a water pipe, and when the wastewater tank is full, the water in the wastewater tank is automatically discharged through the drain port to prevent wastewater from flowing into the automatic water exchange assembly 7000 and damaging the components. 【0079】 A sensor 7500 is provided on at least one outer wall of the wastewater tank 5000 or the clean water tank 4000 and is configured to detect whether the wastewater tank 5000 and the clean water tank 4000 are assembled in their predetermined positions. If the wastewater tank 5000 or the clean water tank 4000 are not assembled in their predetermined positions, the automatic water exchange assembly 7000 will sound an alarm, for example, by illuminating an indicator lamp. 【0080】 The water tank top shell 7300 includes a removable water tank top cover 7340, the tops of the wastewater tank 5000 and the clean water tank 4000 extend into the water tank top shell, and after the water tank top cover 7340 is opened, the elements inside the water tank top shell 7300 can be maintained. Signal lamps, such as a water pipe leak signal lamp, a water pipe burst signal lamp, and a normal water replenishment signal lamp, are provided on the water tank top cover 7340. 【0081】 The side walls of the water tank top shell 7300 extend downward along the side walls of the wastewater tank 5000 and the clean water tank 4000 to form a U-shaped enclosure structure 7800, which surrounds the side walls of the wastewater tank 5000 and the clean water tank 4000, for example, at least the front side wall and part of the left and right side walls of the wastewater tank 5000 and the clean water tank 4000, so that after the automatic water exchange assembly 7000 is assembled on the top of the self-cleaning maintenance station, only the U-shaped enclosure structure is exposed on the outside, improving the overall aesthetics and neatness of the self-cleaning maintenance station, as shown in Figure 1. The side walls of the U-shaped water tank top shell are aligned with the outer wall edge of the water storage chamber, and when the water tank assembly is assembled inside the water storage chamber, the side walls of the U-shaped water tank top shell are flush with the side walls of the self-cleaning maintenance station body 2000, and the side walls of the U-shaped water tank top shell are positioned outside the water storage chamber as a whole, thereby forming the overall external contour structure of the self-cleaning maintenance station together with the side walls of the self-cleaning maintenance station body 2000, resulting in an aesthetically pleasing overall appearance and easy observation of the liquid level inside the water tank assembly. 【0082】 As shown in Figure 5, the side wall of the wastewater tank 5000 includes at least one first recess 7600 extending upward along the bottom of the wastewater tank, and the side wall of the clean water tank 4000 includes at least one second recess 7700 extending upward along the bottom of the clean water tank, and the first recess 7600 and the second recess 7700 are configured to be limited at the assembly position of the wastewater tank 5000 and the clean water tank 4000. The wastewater tank and the clean water tank are made of transparent material to allow easy observation of the liquid levels in the wastewater tank and the clean water tank. 【0083】 The clean water tank is further provided with a clean water float ball base located at the bottom of the clean water tank body, and a clean water float ball connected to the clean water float ball base and configured to detect the water level. When the water level is below a first predetermined threshold, the control device controls the water inlet to open, and clean water is automatically added to the clean water tank. The clean water tank is further provided with a cleaning liquid float ball base located at the bottom of the cleaning liquid tank body, and a cleaning liquid float ball connected to the cleaning liquid float ball base that detects the liquid level of the cleaning liquid, and when the liquid level is higher than a second predetermined threshold, automatically adds cleaning liquid to the clean water tank by controlling the peristaltic pump. The wastewater tank is further provided with a wastewater float ball located at the top of the wastewater tank and configured to detect the liquid level of the wastewater. When the liquid level is higher than a third predetermined threshold, the wastewater pump and drain valve are sequentially opened, and wastewater is automatically discharged from the drain to the wastewater tank. 【0084】 The automatic water exchange assembly 7000 and the dust collection hood 2800 are positioned side-by-side with the clean water tank at the top of the self-cleaning maintenance station, forming a flat arrangement structure. This allows for easy installation and removal, while also providing a flat, aesthetically pleasing appearance and improving the user experience. 【0085】 After prolonged use of a self-cleaning maintenance station, the protruding openings inevitably become contaminated by the wastewater used to clean the cleaning components, resulting in the accumulation of dirt. With the above configuration, the protruding openings on the tab 2600 become open to the front wall, or to the side walls, allowing arms and cleaning tools to contact the protruding openings from various angles, and enabling users to easily clean the dirt accumulated near the protruding openings. 【0086】 When the automatic water exchange assembly 7000 is assembled inside the water storage chamber, the top surface of the automatic water exchange assembly 7000 is higher than the rear wall of the self-cleaning maintenance station body, and the box portion of the automatic water exchange assembly 7000 is located outside the water storage chamber. This configuration reduces the amount of material used for the self-cleaning maintenance station body and achieves both aesthetic and technical benefits. At the same time, the top of the self-cleaning maintenance station body adopts a design with a low front wall and a high rear wall, so that the upper front positions of the automatic water exchange assembly 7000 and the dust collection hood 2800 are simultaneously exposed outside the cavity. This makes it easy for people to observe the water levels in the transparent wastewater tank and clean water tank and the conditions inside the dust collection chamber, and facilitates timely operation of the wastewater tank, clean water tank, and dust collection chamber. 【0087】 In related technologies, the clean water tank and wastewater tank of a self-cleaning maintenance station are located on the self-cleaning maintenance station, requiring manual addition of clean water. When the clean water tank runs low, manual addition of clean water is necessary, which reduces cleaning efficiency. 【0088】 Therefore, embodiments of the present disclosure further provide an automatic water exchange assembly that enables automatic replenishment of clean water, freeing up human labor, automatically replenishing clean water when the clean water tank runs low, improving cleaning efficiency, and furthermore, in the event of a water pipe burst or leak, can promptly shut off the water source, issue an alarm, and prevent water leakage. 【0089】 Specifically, the automatic water exchange assembly provided by the embodiments of this disclosure is assembled in a self-cleaning maintenance station, and as an example, as shown in Figure 6, the automatic water exchange assembly 7000 comprises a main control box 8000 and a water tank assembly 7200, one end of the main control box 8000 is connected to the outside of the water tank assembly 7200 via a second external water pipe 9000, the other end of the main control box 8000 is connected to a water source via a first external water pipe 10000, and the main control box 8000 is connected to the water tank assembly The system is configured to at least enable the automatic addition of purified water, where, as shown in Figure 7, the main control box 8000 includes a first solenoid valve 8100, a low-pressure switch 8200, and a high-pressure switch 8300, wherein the low-pressure switch 8200 and the high-pressure switch 8300 are configured to generate corresponding trigger signals based on the water pressure state of the second external water pipe 9000, and the first solenoid valve 8100 is opened and closed in response to the trigger signals to control whether water in the water source can flow into the second external water pipe through the first external water pipe. When the main control box 8000 is installed for the first time, the main control box 8000 is reset. In the reset state, the first solenoid valve 8100 is opened. At this time, the second solenoid valve on one side of the clean water tank is closed, preventing water from the water source from entering the main control box 8000 and the external water pipes and circulating. As a result, the water pressure in the water pipes increases, the high-pressure switch generates a high-pressure trigger signal, which is transmitted to the main controller 8500 inside the main control box 8000. The main controller 8500 then transmits a closing control signal, and the first solenoid valve 8100 closes in response to the high-pressure trigger signal, stopping the water supply from the water source and maintaining a state where the entire water circuit is filled with clean water. 【0090】 As shown in Figure 8, the main control box 8000 includes a box body 8400, which includes a box body water inlet (not shown) and a box body water outlet 8410, the box body water inlet being connected to a water source, and the box body water outlet 8410 being connected to the water tank assembly 7200 via the second external water pipe 9000. The top of the box body 8400 includes a box body top cover 8420, which is fixedly connected to the top of the box body 8400 via bolts. The shape of the box body 8400 may be a rectangular parallelepiped, cube, sphere, hemisphere, etc., but is not particularly limited. The material of the box body 8400 may be metal, alloy, hard plastic, rubber, etc., but is not particularly limited. 【0091】 As shown in Figure 7, the main control box 8000 further includes a main controller 8500, which is located inside the box body 8400 and is electrically connected to the first solenoid valve 8100, the low-pressure switch 8200, and the high-pressure switch 8300. The main controller 8500 is configured to control the opening and closing of the first solenoid valve 8100 based on the trigger signal. Here, one side of the water tank assembly 7200 includes a second solenoid valve 7210. When a float ball valve in the clean water tank 4000 detects that the water level in the tank is low, it sends a detection signal to the control device 7100. The control device 7100 controls the second solenoid valve 7210 to open. At this time, water in the water pipe flows into the clean water tank 4000, the water pressure in the water pipe decreases, the low-pressure switch 8200 generates a low-pressure trigger signal, which is sent to the main controller 8500 in the main control box 8000. The main controller 8500 sends an open control signal, and the first solenoid valve 8100 opens in response to the low-pressure trigger signal. Water from the water source enters through the water inlet of the box body, forming a passage from the water source to the clean water tank, thus enabling automatic replenishment of clean water to the water tank assembly. When a full-water detection sensor (such as a Hall sensor) in the clean water tank 4000 detects that the tank is full, a full-water detection signal is sent to the control device 7100. The control device 7100 controls the second solenoid valve to close. At this time, water can no longer flow into the clean water tank, the water pressure in the water pipe rises, the high-pressure switch generates a high-pressure trigger signal, which is sent to the main controller 8500 in the main control box 8000. The main controller 8500 sends a close control signal, the first solenoid valve 8100 closes in response to the high-pressure trigger signal, the water source stops supplying water, and the automatic addition of clean water to the water tank assembly stops. The control of the main control box enables automatic addition of clean water and automatic closing of the clean water addition mechanism according to the water level in the clean water tank, freeing the operator, avoiding work stoppages due to insufficient water in the dust collection pile, and improving the work efficiency of the automatic cleaning device. 【0092】 As shown in Figure 7, the main control box 8000 further includes a first water pipe 9100 provided inside the box body 8400, one end of which is connected to the water inlet of the box body and connected to a water source via the water inlet of the box body; a second water pipe 9200 provided inside the box body 8400, one end of which is connected to the water outlet 8410 of the box body and the other end of which is connected to the first water pipe 9100; and a third water pipe 9300 provided inside the box body 8400 and connected between the first water pipe 9100 and the second water pipe 9200, wherein the first solenoid valve 8100 is provided in the pipeline of the first water pipe 9100, the high-pressure switch 8300 is provided in the pipeline of the second water pipe 9200, and the low-pressure switch 8200 is provided in the pipeline of the third water pipe. Here, the high-pressure switch 8300 and the low-pressure switch 8200 are pressure sensors. By setting thresholds for the pressure sensors, they function as high-pressure and low-pressure switches. For example, by setting a low-pressure threshold for the pressure sensor, if the water circuit pressure is lower than the low-pressure threshold, the low-pressure switch generates a low-pressure trigger signal. By setting a high-pressure threshold for the pressure sensor, if the water circuit pressure is higher than the high-pressure threshold, the high-pressure switch generates a high-pressure trigger signal. The low-pressure and high-pressure thresholds are set based on experimental data and are not particularly limited. The high-pressure and low-pressure switches each respond to different pressure values ​​of the water flow in the water circuit to control the opening and closing of the first solenoid valve, ultimately achieving the opening and closing of the water circuit. 【0093】 In some embodiments, the main control box 8000 further includes a pressure-holding airbag box 8600, which is pre-filled with sufficient liquid, and when the liquid pressure in the second external water pipe 9000 decreases, the pressure-holding airbag box 8600 replenishes the liquid in the third water pipe 9300 and the second water pipe 9200 with the liquid in the pressure-holding airbag box, slowing down the rate of pressure decrease in the third water pipe 9300 and the second water pipe 9200, and increasing the response time difference between the low-pressure switch and the high-pressure switch. 【0094】 In some embodiments, as shown in Figure 7, the main control box 8000 further includes a pressure-retaining airbag box 8600 and a four-way tube 8700, the pressure-retaining airbag box 8600 having an opening 8611, and the four-way tube 8700 having four communication ports, which are connected to the first water pipe 9100, the second water pipe 9200, the third water pipe 9300 and the pressure-retaining airbag box opening 8611, respectively. The pressure-retaining airbag box 8600 is installed between the first water pipe 9100, the second water pipe 9200, and the third water pipe 9300 via a four-way pipe 8700. The pressure-retaining airbag box communicates with the liquids in the first water pipe, the second water pipe, and the third water pipe, respectively, via the four-way pipe, and is configured to replenish the liquids in the first water pipe 9100, the second water pipe 9200, and the third water pipe 9300 with liquid from the pressure-retaining airbag box when the liquid pressure in the first water pipe 9100, the second water pipe 9200, and the third water pipe 9300 decreases. 【0095】 In some embodiments, as shown in Figure 9, the pressure-retaining airbag box 8600 includes a pressure-retaining airbag box housing 8610, an airbag 8620, and an assembly member 8630, wherein the airbag 8620 is assembled to the pressure-retaining airbag box housing 8610 via the assembly member 8630, and an opening 8611 is provided at the top of the pressure-retaining airbag box housing 8610, and the airbag 8620 is provided inside the pressure-retaining airbag box housing 8610 and elastically expands and contracts in accordance with the amount of liquid entering and exiting the airbag through the opening, and the airbag 8620 is made of a flexible elastic material and can expand or contract in accordance with the amount of liquid entering the airbag 8620. As shown in Figure 10, the airbag 8620 includes an airbag body 8621, an airbag neck 8622, and an airbag end 8623. The airbag body 8621 is housed within the pressure-retaining airbag box housing 8610 and can elastically expand and contract in accordance with the amount of liquid entering and exiting the airbag 8620. The airbag end 8622 is located at the top of the airbag body 8621 and is substantially flush with the end of the pressure-retaining airbag box, where the airbag end 8623 has an airbag opening 8624 for liquid entry and exit, and the airbag neck 8622 is located between the airbag body 8621 and the airbag end 8623 and is fitted and engaged with the assembly member 8630. 【0096】 In some embodiments, as shown in Figure 11, the assembly member 8630 has a central hole 8631 through which the airbag neck 8622 is snapped and then assembled to the opening of the pressure-holding airbag box housing 8610. The upper surface of the assembly member 8630 further has a recessed surface 8632, which is provided on the top surface of the assembly member around the central hole 8631 and is configured to align with the airbag end 8623. The airbag end 8623 passes through the central hole 8631 and then aligns with the recessed surface 8632, thereby making the airbag end 8623 substantially flush with the upper surface of the assembly member 8630. The assembly member 8630 further includes an edge portion 8633, which extends around the outer side of the top surface of the assembly member, and the edge portion 8633 is configured to engage with the periphery of the pressure-retaining airbag box housing opening 8611 after the assembly member 8630 is assembled to the pressure-retaining airbag box housing opening 8611, thereby achieving a seal inside the pressure-retaining airbag box 8600. The pressure-retaining airbag box further includes a cover body (not shown), which is assembled on the pressure-retaining airbag box housing, and after the edge portion 8633 is strongly pressed, the airbag 8620 is configured to be sealed inside the airbag box housing 8610. 【0097】 After the initial reset, and after the wiring and piping of the water tank assembly and the main control box are connected, the control button on the main control box is first opened. At this time, the first solenoid valve of the main control box is opened for a certain period of time and then closed, for example, 2 seconds, and both the first and second solenoid valves are closed, filling the water circuit between the first and second solenoid valves with clean water. At this time, the water circuit becomes high-pressure, the high-pressure switch is constantly triggered, and the first solenoid valve also closes in response to the high-pressure switch state. When the external water pipe is damaged and liquid gradually leaks out, the water pressure in the external water pipe gradually decreases, and the constant trigger state of the high-pressure switch stops. At this time, the liquid in the pressure-retaining airbag box is replenished into the water circuit by the contraction of the airbag, and the rate of decrease in water pressure in the water circuit slows down. When the liquid in the pressure-retaining airbag box can no longer be replenished into the water circuit, the water pressure in the water circuit continues to decrease due to the water pipe leak until it reaches the trigger threshold of the low-pressure switch. The main controller records the first time difference t1 between the change in the high-pressure switch trigger state and the change in the low-pressure switch trigger state. If the first time difference t1 is within a first predetermined range, it is considered a water pipe leak, and a water pipe leak alarm signal is issued. Here, the first predetermined range may be set based on experimental data, for example, higher than 10 seconds. If t1 is higher than 10 seconds, it is considered a water pipe leak, and a water pipe leak alarm signal is issued, for example, by lighting up a water pipe leak signal lamp and / or issuing a beep alarm. 【0098】 In some embodiments, when an external water pipe ruptures and liquid leaks, if the rupture is not large but not a minute leak, the water pressure in the external water pipe also drops sharply, and the high-pressure switch remains constantly triggered. At this time, the liquid in the pressure-retaining airbag box is replenished into the water circuit by the airbag's contraction, causing water to leak rapidly from the external water pipe. The pressure-retaining airbag box slows down the rate of decrease in water pressure in the water circuit for only a short time. When the liquid in the pressure-retaining airbag box can no longer replenish the water circuit, the water pressure in the water circuit drops sharply due to the rupture of the water pipe, reaching the trigger threshold of the low-pressure switch in a short time. The main controller records the second time difference t2 between when the high-pressure switch and the low-pressure switch are triggered. If this second time difference t2 is within a second predetermined range, it is considered a water pipe rupture, and a water pipe rupture alarm signal is issued. For example, the second predetermined range is set based on experimental data and may be set to, for example, 3 to 10 seconds, and if t2 is in the range of 3 to 10 seconds, it is considered a water pipe rupture and a water pipe rupture alarm signal is issued, for example, by lighting a water pipe rupture signal lamp and / or issuing a beeping alarm. 【0099】 In some embodiments, when the second solenoid valve of the clean water tank opens and water is replenished normally, the water pressure in the external water pipe drops sharply, and the constant trigger state of the high-pressure switch stops. At this time, the liquid in the pressure-retaining airbag box is replenished into the water circuit by the contraction of the airbag, and the water in the external water pipe flows quickly, so the pressure-retaining airbag box slows down the rate of decrease in water pressure in the water circuit only momentarily. When the liquid in the pressure-retaining airbag box can no longer be replenished into the water circuit, the water pressure in the water circuit reaches the trigger threshold of the low-pressure switch in a very short time, and the main controller records the third time difference t3 when the high-pressure switch and the low-pressure switch are triggered. If the third time difference t3 is within a third predetermined range, it is considered normal replenishment, and no alarm signal is issued, and a normal replenishment signal is issued. Here, the third predetermined range may be set based on experimental data, for example, 0 to 3 seconds. If t3 is in the range of 0 to 3 seconds, it is considered normal hydration, a normal hydration signal is emitted, for example, a normal hydration signal lamp is lit, and after hydration is complete the normal hydration signal lamp is turned off. 【0100】 In some embodiments, if an external water pipe bursts and liquid leaks rapidly, and the water flow is severely leaked due to the water pipe burst, and the second solenoid valve is opened during normal water replenishment, the trigger interval of the high and low pressure trigger switch is close, for example, within a third predetermined range, then the main controller cannot determine whether it is normal water replenishment or a water pipe burst, and in this case, it can control according to the following control logic. The main control box is further configured to close the second solenoid valve within a first predetermined time period, and close the first solenoid valve within a second predetermined time period, where the second predetermined time period overlaps with the first predetermined time period at least partially, and if the high pressure switch is continuously triggered during the overlapping time period between the second and first predetermined time periods, it is determined that there is no rupture in the water pipe. The at least partial overlap may be that the second predetermined time period is part of the first predetermined time period. 【0101】 As shown in Figure 12, the timing diagram can explain the detection status of whether or not a water pipe has burst. When the water level in the clean water tank reaches the detection level of the water presence detection sensor (such as an anhydrous Hall sensor), the second solenoid valve of the clean water tank opens, which is recorded as 0 seconds. Water is released from the piping, the pressure inside the pipe decreases, the low-pressure switch is triggered, the first solenoid valve opens, which is recorded as 1 second, for example. Water from the tap is then added to the piping. After that, the second solenoid valve closes, which is recorded as 1.5 seconds. After a predetermined time, the first solenoid valve closes, which is recorded as 3 seconds, for example. After water is continuously injected for 1.5 seconds, the first solenoid valve is closed. During this time, high pressure is maintained in the piping. That is, before replenishing water, it is detected whether a high-pressure state can be maintained in the piping for a certain period of time each time, for example every 2 seconds. The first solenoid valve is closed for 1 second and then opened, for example, this is recorded as the 4th second. If the first and second solenoid valves close within 1 second and the piping is not damaged, then high pressure is maintained in the piping. If the piping bursts, then high pressure is not maintained in the piping. Therefore, if a high-pressure state can be achieved during this time, it can be determined that there has been no rupture of the water pipe. Subsequently, for example, at the 5th second, the second solenoid valve is opened to begin normal water replenishment, and the second solenoid valve is closed after the clean water tank is full. This avoids the problem of water leakage worsening due to continuous water replenishment in the event of a water pipe rupture. 【0102】 In the embodiments of this disclosure, by adding a main control box, automatic replenishment of clean water to the clean water tank can be achieved, freeing up human labor and improving cleaning efficiency. Furthermore, by adding a pressure-retaining airbag box, if a water pipe bursts or leaks, it is possible to determine in a timely manner whether the water pipe is leaking or bursting, to stop the water source in a timely manner, issue an alarm, and avoid the risk of water flow leakage. 【0103】 In related technologies, cleaning solution needs to be added to the clean water tank to enhance cleaning effectiveness, for example, by manually adding the cleaning solution. However, if clean water is automatically added to the clean water tank, the user needs to be prompted to manually add the cleaning solution, which increases costs, makes it easier for users to forget to add the cleaning solution, creates inconvenience in the application of automatic cleaning devices, and reduces cleaning efficiency. 【0104】 To this end, embodiments of the present disclosure further provide an automatic water exchange assembly that enables automatic addition of clean water and cleaning solution, improves user convenience, automatically adds clean water when the clean water tank is low on water, and automatically adds a predetermined amount of cleaning solution, thereby improving the timeliness, convenience, and accuracy of cleaning solution addition. 【0105】 Specifically, the automatic water exchange assembly provided by the embodiments of the present disclosure is assembled in a self-cleaning maintenance station, and as an example, as shown in Figure 3, the automatic water exchange assembly 7000 comprises a control device 7100 and a water tank assembly 7200, the control device 7100 is located inside the water tank assembly 7200, and the control device 7100 is configured to enable the automatic addition of clean water and / or cleaning fluid to the water tank assembly 7200, specifically, as shown in Figure 13, the water tank assembly 7200 includes a water tank top shell 7300 and a clean water tank 4000, the water tank top shell 7300 covers the clean water tank 4000, and a water inlet 7310, a water overflow 7320 and a drain 7330 are provided on the rear side of the water tank top shell 7300, and the outside of the water inlet 7310 is a water source Connected to the supply side, the inside of the water inlet 7310 is connected to the clean water tank 4000 via the clean water tank inlet pipe 9400. A second solenoid valve 4340 is provided on the side of the clean water tank inlet pipe 9400 closer to the clean water tank 400. The opening and closing of the second solenoid valve 4340 enables the automatic replenishment of clean water from the clean water tank 4000. The outside of the water overflow port 7320 communicates with the outside of the automatic water exchange assembly 7000, allowing the clean water that overflows from the clean water tank to flow out. Used for discharge, the inside of the water overflow port 7320 is connected to the side top of the clean water tank 4000 via the clean water tank water overflow pipe 9500 and is used to guide the overflowing water, the outside of the drain port 7330 is in communication with the outside of the automatic water exchange assembly 7000 and is used to discharge the sewage from the sewage tank 5000, the inside of the drain port 7330 is connected to the sewage tank 5000 drain pump 5100 via the sewage tank drain pipe 9600.The purified water tank 4000 includes a purified water tank body 4100 and a cleaning liquid tank body 4200. As shown in Figure 5, the purified water tank body 4100 and the cleaning liquid tank body 4200 are stackable on top of each other. Preferably, the cleaning liquid tank body 4200 is located on top and contributes to transporting the cleaning liquid contained therein to the purified water tank body 4100. The purified water tank body 4100 includes a full water detection sensor 4110. When the full water detection sensor 4110 is triggered, a predetermined amount of cleaning liquid is automatically added to the purified water tank body 4100 under the control of the control device 7100. In some embodiments, the purified water tank body 4100 includes a water presence / absence detection sensor. When the water presence / absence detection sensor is triggered, a predetermined amount of cleaning liquid is automatically added to the purified water tank body 4100 under the control of the control device 7100. Thus, by installing a water level detection assembly (including a water presence detection sensor or a full-water detection sensor), automatic replenishment of cleaning solution is possible when the clean water tank is full or empty. Of course, the water level detection assembly is configured to be triggered in response to the water level in the clean water tank reaching a predetermined position between full and empty. 【0106】 In some embodiments, the purified water tank 4000 includes a purified water tank top cover 4300 that covers the purified water tank body 4100, and the purified water tank top cover 4300 extends into the water tank top shell 7300. 【0107】 In some embodiments, as shown in Figure 13, the clean water tank top cover 4300 includes a groove 4310, and a peristaltic pump 4320 is provided in the groove 4310. The peristaltic pump 4320 is configured to pump the cleaning liquid from the cleaning liquid tank body 4200 into the clean water tank body 4100 under the control of the control device 7100. By providing the peristaltic pump at the top of the clean water tank top cover 4300, maintenance and replacement of the peristaltic pump are made easier, electrical connection with the control device 7100 is made easier, communication wiring with the control device 7100 is shortened, and the accuracy and timeliness of control are improved. 【0108】 In some embodiments, as shown in Figure 14, the peristaltic pump 4320 has a liquid inlet 4321 and a liquid outlet 4322. The liquid inlet 4321 extends via a first liquid transport pipe 4323 to a position near the bottom of the cleaning fluid tank body 4200, and the liquid outlet 4321 extends via a second liquid transport pipe 4324 into the clean water tank body 4100. When the water level in the clean water tank body 4100 reaches a predetermined position, the control device 7100 uses the peristaltic pump 4320 to pump the cleaning fluid from the cleaning fluid tank body 4200 into the clean water tank body 4100 via the first liquid transport pipe 4323, thereby achieving automatic replenishment of cleaning fluid. 【0109】 In some embodiments, as shown in Figure 14, the cleaning fluid tank body 4200 includes a cleaning fluid passage 4130, which extends upward from the inside of the cleaning fluid tank body 4200 along the outside of the clean water tank body 4100 to the clean water tank top cover and is used to add cleaning fluid to the cleaning fluid tank body, as indicated by the arrow in Figure 14. The top end of the cleaning fluid passage 4130 includes a cleaning fluid passage cover 4140, which is opened to add cleaning fluid to the cleaning fluid tank body 4200 when it is necessary to add cleaning fluid. 【0110】 In some embodiments, the cleaning fluid tank body 4200 includes a cleaning fluid float ball base 4210 and a cleaning fluid float ball 4220. The cleaning fluid float ball base 4210 is located at the bottom of the cleaning fluid tank body 4200, and the cleaning fluid float ball 4220 is rotatably connected to the cleaning fluid float ball base. The cleaning fluid level is detected, and the cleaning fluid float ball 4220 descends under gravity as the cleaning fluid level decreases. When the cleaning fluid float ball 4220 descends to a second predetermined threshold, the control device identifies that the cleaning fluid in the cleaning fluid tank body 4200 has been used up or is about to be used up. At this time, if the clean water tank body 4100 is full and cleaning fluid needs to be added, the control device controls the peristaltic pump to stop it from operating and stops adding cleaning fluid to the clean water tank body. 【0111】 In some embodiments, the water tank assembly includes a cleaning solution status indicator lamp, which is controlled to illuminate when the cleaning solution level is below a second predetermined threshold. 【0112】 In some embodiments, the side walls of the water tank top shell extend downward along the side walls of the purified water tank, and the U-shaped structure encloses the side walls of the purified water tank body. 【0113】 In some embodiments, the purified water tank body 4100 includes a purified water float ball base 4110 and a purified water float ball 4120. The purified water float ball base 4110 is located at the bottom of the purified water tank body 4100, and the purified water float ball 4120 is rotatably connected to the purified water float ball base 4110 and configured to detect the water level. The purified water float ball 4120 descends under gravity as the purified water level decreases. When the purified water float ball 4120 descends to a first predetermined threshold, the controller identifies that the purified water in the purified water tank body 4100 has been used up. If the water level is below the first predetermined threshold, the control device opens the second solenoid valve 4340 and automatically adds purified water to the purified water tank. The process of automatically adding purified water is as described in the embodiments above and will not be repeated here. 【0114】 In the embodiments of this disclosure, a full-water detection sensor inside the clean water tank body detects whether the clean water tank is full. When it is detected that the clean water tank is full, a predetermined amount of cleaning solution is automatically added to the clean water tank body under the control of the control device. The amount of cleaning solution added is determined according to the amount of water in the clean water tank, enabling automatic and accurate addition of cleaning solution. 【0115】 In related technologies, when the water tank assembly is filled to capacity with purified water, the valve for adding purified water cannot be automatically closed, resulting in the purified water overflowing. Although the automatic water exchange assembly can automatically add purified water, it cannot automatically close the valve, which creates inconveniences in the application of the automatic water exchange assembly. 【0116】 Therefore, the embodiments of this disclosure further provide an automatic water exchange assembly that can improve the safety of the automatic water exchange assembly application by achieving dual control with a floating valve structure and associated sensors, thereby minimizing the risk of overflow when the clean water tank is full. 【0117】 Specifically, embodiments of the present disclosure provide an automatic water exchange assembly assembled in a self-cleaning maintenance station, and as an example, as shown in Figure 3, the automatic water exchange assembly 7000 comprises a control device 7100 and a water tank assembly 7200, the control device 7100 is located inside the water tank assembly 7200, and the control device 7100 includes a second solenoid valve 4340 for automatic addition and / or automatic closing of the water tank assembly 7200 to clean water, and specifically, as shown in Figure 13, the water tank assembly 7200 comprises a clean water tank body 4100 and the clean water tank The device includes an inlet pipe 9400 used to add clean water to the tank body 4100, and a float valve 4400 provided on the clean water tank body 4100 that moves up and down in accordance with changes in the water level inside the clean water tank body 4100. As shown in Figure 15, in response to the float valve 4400 being in a first position 01, the control device controls the inlet pipe 9400 to stop the addition of clean water to the clean water tank body 4100, and in response to the float valve 4400 being in a second position 02, the float valve 4400 blocks the outlet 9410 for adding water from the inlet pipe 9400 to the clean water tank body 4100. 【0118】 Here, the first position 01 may be a point position or a section position. When the water level in the clean water tank body 4100 rises at the first position 01, the float valve 4400 reaches the first position 01, after which the control device receives sensing information and indicates that the water level in the clean water tank body 4100 has reached a predetermined full water level. Specifically, this can be implemented as follows. 【0119】 In some embodiments, the automatic water exchange assembly includes a signal transmitting component 4500 configured to transmit a sensing signal and a signal sensing component 4600 configured to receive a sensing signal, wherein either the signal transmitting component 4500 or the signal sensing component 4600 is located within the floating body 4420, and the other of the signal transmitting component 4500 or the signal sensing component 4600 is located on the inner wall of the clean water tank body 4100, i.e., the signal transmitting component 4500 and the signal sensing component 4600 are located in interchangeable positions without interfering with the generation of full-water sensing information. When the floating body 4420 moves to position the floating valve 4400 in a first position, the signal sensing component 4600 is triggered, causing the control device 7100 to close the second solenoid valve 4340 and further control the inlet pipe 9400 to stop the addition of clean water into the clean water tank body 4100. When the control device 7100 successfully closes the second solenoid valve 4340 and the inlet pipe 9400 stops adding clean water to the clean water tank body 4100, the float valve 4400 no longer rises, meaning that the function of shutting off the inlet pipe is completed in one go. 【0120】 In some embodiments, the signal transmitting component 4500 includes a magnet and the signal sensing component 4600 includes a Hall element. Alternatively, the signal transmitting component 4500 is an NFC reader module and the signal sensing component 4600 is an NFC tab. The signal transmitting component 4500 is an RFID reader and the signal sensing component 4600 is an RFID electronic tab. While not particularly limited, any sensor capable of position sensing can be applied as an embodiment. 【0121】 In some embodiments, as shown in Figure 16, the float valve 4400 includes a pivot rod 4410, the pivot rod 4410 having a first end 4411 which is pivotally connected to a fixed rotating shaft 4430 and pivotally connected to a fixed sleeve shell 4440 via the rotating shaft 4430, the pivot rod 4410 has a second end 4412 which is provided opposite to the first end 4411, the float valve 4400 includes a floating body 4420 which is connected to the second end 4412, and is configured to rotate relative to the first end 4411 of the pivot rod 4410 until the float valve 4400 is in the first position as the water level in the clean water tank body rises. Specifically, the floating body 4420 has a hollow structure and contains a signal transmitting component 4500 or a signal sensing component 4600 inside. The floating body 4420 is made of a lightweight material such as plastic, rubber, or a lightweight metal material, and easily provides upward buoyancy to the floating valve 4400, thereby driving the pivot rod 4410 to rotate upward. The pivot rod 4410 may be hollow or skeletal in structure and is made of a lightweight material such as plastic, rubber, or a lightweight metal material, and provides upward buoyancy to the floating valve 4400. 【0122】 In some embodiments, in response to the float valve 4400 being in the first position 01, the water level in the clean water tank body continues to rise, and the float section 4420 drives the pivot rod 4410 to rotate relative to the fixed rotation shaft 4430 until the float valve 4400 is in the second position 02. When the float valve 4400 is in the first position 01, under normal conditions, the control device 7100 determines that the clean water tank is full based on the responses of the signal transmitting component 4500 and the signal sensing component 4600, and at this time closes the second solenoid valve 4340, stopping the inlet pipe 9400 from adding clean water to the clean water tank body 4100. However, due to a malfunction of the signal transmitting component 4500 and the signal sensing component 4600, etc., the control device 7100 fails to successfully close the second solenoid valve 4340, and the inlet pipe 9400 stops adding clean water to the clean water tank body Without stopping the addition of purified water to 4100, the float valve 4400 continues to rise along with the water level in the purified water tank body, and the float portion 4420 drives the pivot rod 4410 to rotate relative to the fixed rotation shaft 4430 until the float valve 4400 is in the second position 02, and the first end 4411 of the float valve 4400 blocks the outlet 9410 of the inlet pipe 9400 that injects water into the purified water tank body 4100, forcibly stopping the injection operation of the water supply pipe and avoiding the risk of water overflow. 【0123】 Specifically, as shown in Figure 17, in some embodiments, the float valve 4400 further includes a stopper 4450 which is movably connected to the first end 4411 of the pivot rod 4410 and is configured to move toward or away from the outlet 9410 of the inlet pipe 9400 by the pressure of the push rod 44111 of the first end 4411 of the pivot rod 4410, thereby blocking or opening the outlet 9410 of the inlet pipe, as shown in the third position 03 and fourth position 04 of Figure 17. 【0124】 In some embodiments, as shown in Figure 18, the plug 4450 includes a cavity 4452 having a downward opening, the first end 4411 of the pivot rod 4410 includes a push rod 44111, the push rod 44111 is freely movable within the cavity 4452, and the push rod 44111 is configured to press against the opposing side walls of the cavity 4452 as the pivot rod 4410 rotates, thereby moving the plug toward or away from the outlet of the inlet pipe. 【0125】 In some embodiments, the water tank assembly further includes a fixed sleeve shell 4440 for housing the outlet 9410 of the inlet pipe 9400, a stopper 4450, and the first end 4411 of the pivot rod 4410, wherein the fixed sleeve shell 4440 and the inlet pipe 9400 are integrally molded to prevent water leakage, and a screw-type rubber gasket 9420 is provided at the connection between the fixed sleeve shell 4440 and the inlet pipe 9400 to provide a sealing effect when assembled on the clean water tank body. The first end 4411 of the pivot rod 4410 is connected between the opposing side walls of the fixed sleeve shell 4440 via the fixed rotation shaft 4430, and the pivot rod 4410 is configured to rotate relative to the fixed sleeve shell 4440 around the fixed rotation shaft 4430 and simultaneously push the stopper 4450 to move horizontally. 【0126】 In some embodiments, as shown in Figure 19, slides 4441 are provided on both inner walls of the fixed sleeve shell 4440, and slide rails 4453 are provided on both sides of the outer wall of the plug body 4450, and the slide rails 4453 are slidably connected in cooperation with the slides 4441, thereby allowing the plug body 4450 to move along the horizontal direction and accurately seal the inlet pipe outlet 9410. 【0127】 In some embodiments, as shown in Figure 18, the plug further includes a soft rubber gasket 4451 provided on an end face that abuts against the outlet 9410 of the inlet pipe, and the soft rubber gasket 4451 is configured to block or open the outlet 9410 of the inlet pipe in response to the plug 4450 moving toward or away from the outlet 9410 of the inlet pipe. In some embodiments, as shown in Figure 19, the outlet of the inlet pipe is conical in shape to cooperate with the soft rubber gasket 4451 to seal the outlet 9410 of the inlet pipe. 【0128】 In some embodiments, as shown in Figure 13, an overflow hole is provided at the top of the clean water tank body and communicates with an overflow outlet 7320 via an overflow pipe 9500. When the clean water tank 4000 is full, if the water inlet cannot be completely blocked by the first position sensing and the second position float valve closure as described above, the water in the clean water tank is automatically discharged through the overflow hole, overflow pipe 9500, and overflow outlet 7320, preventing the clean water from flowing into the automatic water exchange assembly 7000 and damaging its components. 【0129】 In the embodiments of this disclosure, a float valve in the clean water tank body detects whether the clean water tank is full. The float valve is provided in the clean water tank body and moves as the water level in the clean water tank body rises. When the float valve is in the first position, the control device controls the inlet pipe to stop the injection of clean water into the clean water tank body. When the float valve is in the second position, the float valve blocks the outlet of the inlet pipe that injects water into the clean water tank body. Furthermore, excess water can be discharged through an overflow hole. Through multiple control methods, it is possible to prevent the clean water tank from overflowing from the self-cleaning maintenance station after it is full. 【0130】 An embodiment of the present disclosure provides an automatic water exchange assembly, as shown in Figure 20, comprising a control device 7100 and a water tank assembly 7200, wherein the control device 7100 is located inside the water tank assembly 7200 and is configured to enable automatic wastewater discharge from the water tank assembly 7200, the water tank assembly 7200 comprising a wastewater tank body 5100 and a drain pump 5200 located below the wastewater tank body 5100 and configured to provide power for wastewater discharge, wherein in response to the wastewater in the wastewater tank body 5100 reaching a predetermined height, the control device 7100 operates the drain pump 5200 to discharge the wastewater in the wastewater tank body 5100. 【0131】 In some embodiments, the water tank assembly further includes a drain pipe 5300 connected to the outlet water of the drain pump 5200, and a drain valve 5400 provided in the drain pipe 5300 and configured to open and close the drain pipe passage. 【0132】 In some embodiments, in response to the wastewater in the wastewater tank body 5100 reaching a predetermined height, the control device 7100 controls the drain valve 5400 and the drain pump 5200 to operate sequentially. 【0133】 In some embodiments, the water tank assembly further includes a wastewater full-water detection assembly 5500, at least in part, provided on the wastewater tank body 5100 and configured to detect the water level of wastewater in the wastewater tank body. 【0134】 In some embodiments, the sewage full-water detection assembly 5500 includes a sewage full-water floating seat 5510 provided on top of the sewage tank body 5100, and a sewage full-water floating section 5520 connected to the sewage full-water floating seat 5510 and configured to move relative to the sewage full-water floating seat in response to changes in the water level of the sewage in the sewage tank body 5100. 【0135】 In some embodiments, the sewage-filled floating body 5520 is pivotally connected to the sewage-filled floating body seat 5510, and the sewage-filled floating body 5520 is configured to rotate relative to the sewage-filled floating body seat 5510 in accordance with changes in the water level of the sewage in the sewage tank body 5100. 【0136】 In some embodiments, the sewage full-water detection assembly 5500 further includes a signal transmitting component configured to transmit a sensing signal and a signal sensing component configured to receive a sensing signal, wherein one of the signal transmitting component and the signal sensing component is located within the sewage full-water floating section 5520, and the other of the signal transmitting component and the signal sensing component is located on the side wall of the sewage tank body 5100, and when the sewage full-water floating section 5520 is located in a predetermined position in response to the sewage in the sewage tank body 5100 reaching a predetermined height, the signal sensing component is triggered to generate a trigger signal, which is transmitted to a control device 7100, and the control device 7100 controls the drain pump 5200 to discharge the sewage in the sewage tank body 5100. 【0137】 In some embodiments, the signal transmitting component includes a magnet, and the signal sensing component includes a Hall element. 【0138】 In some embodiments, a Hall sensor is provided in the water storage chamber 2700 contained within the self-cleaning maintenance station body 2000, and it forms a sensing signal with a Hall sensor in the sewage-filled floating section 5520. In the initial state of the sewage-filled floating section 5520, a magnet in the sewage-filled floating section 5520 is triggered together with the Hall sensor provided in the water storage chamber 2700 and the Hall sensor on the side wall of the sewage tank body 5100, which indicates that the sewage tank has been assembled in place and that the sewage tank is not full. When more sewage is collected, the sewage-filled floating section 5520 floats up and separates from the Hall sensor provided in the water storage chamber 2700, which indicates that the sewage tank is full, a signal lamp lights up, and the pumping of sewage begins. 【0139】 In some embodiments, the bottom of the wastewater tank body 5100 is funnel-shaped, and a drain port is provided at the end of the bottom of the wastewater tank body 5100 that is away from the top of the wastewater tank body, communicating with the water inlet of the drainage pump via a pipeline. 【0140】 Finally, note that each example in this specification is described progressively, each example focuses on the differences from other examples, and identical or similar parts between examples may be referenced to one another. 【0141】 The above embodiments are used to illustrate the technical solutions of the present disclosure and are not limiting thereto. While the present disclosure has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in each of the above embodiments can still be modified or some of their technical features can be replaced by equivalent substitutions, and that such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of each embodiment of the present disclosure.

Claims

[Claim 1] Equipped with a control device and a water tank assembly, The control device is configured to automatically add clean water to the water tank assembly, automatically discharge dirty water, or automatically add cleaning solution. The water tank assembly is configured to be assembled inside the water storage chamber of a self-cleaning maintenance station. The water tank assembly includes a wastewater tank, a clean water tank, and a water tank top shell, the water tank top shell substantially covers the wastewater tank and the clean water tank, and the water tank top shell, the wastewater tank, and the clean water tank form a single integrated structure. An automatic water exchange assembly wherein, when the water tank assembly is assembled inside the water storage chamber of the self-cleaning maintenance station, a portion of the tank body of the water tank assembly is positioned outside the water storage chamber. [Claim 2] The automatic water exchange assembly according to claim 1, wherein the wastewater tank and the clean water tank are provided below the water tank top shell at a predetermined distance apart. [Claim 3] A recess is provided in the outer wall on the same side of the wastewater tank and the clean water tank, and a wastewater outlet and a clean water outlet are provided penetrating upwards through the top of the recess. The aforementioned wastewater outlet is configured to pump wastewater into the wastewater tank. The water exchange assembly according to claim 1, wherein the purified water outlet is configured to draw purified water from the purified water tank. [Claim 4] A water inlet is provided on one side of the water tank top shell. The water automatic exchange assembly according to claim 1, wherein the water inlet is connected to the clean water tank, and the control device enables the automatic addition of clean water to the clean water tank. [Claim 5] A water overflow port is further provided on one side of the water tank top shell. The water overflow port is connected to the clean water tank, and when the clean water tank is full, the water in the clean water tank is automatically discharged through the water overflow port, as described in claim 1. [Claim 6] A drain is further provided on one side of the water tank top shell. The drain outlet is connected to the wastewater tank. The automatic water exchange assembly according to claim 1, wherein when the wastewater tank is full, the water in the wastewater tank is automatically discharged through the drain port. [Claim 7] The automatic water exchange assembly according to claim 1, wherein a sensor configured to detect the assembly of the wastewater tank and the clean water tank into predetermined positions is provided on the outer wall of the wastewater tank or the clean water tank. [Claim 8] The aforementioned water tank top shell includes a removable water tank top cover. The automatic water exchange assembly according to claim 1, wherein the tops of the wastewater tank and the clean water tank extend into the water tank top shell. [Claim 9] The water automatic exchange assembly according to claim 1, wherein the side walls of the water tank top shell extend downward along the side walls of the wastewater tank and the clean water tank, forming a U-shaped structure that encloses the side walls of the wastewater tank and the clean water tank. [Claim 10] The automatic water exchange assembly according to claim 9, wherein the side walls of the U-shaped water tank top shell are aligned with the outer wall edge of the water storage chamber, and when the water tank assembly is assembled inside the water storage chamber, the side walls of the U-shaped water tank top shell are positioned outside the water storage chamber as a whole. [Claim 11] The side wall of the wastewater tank includes at least one first recess extending upward along the bottom of the wastewater tank, The side wall of the purified water tank includes at least one second recess extending upward along the bottom of the purified water tank. The automatic water exchange assembly according to claim 1, wherein the first and second recesses are limited to the assembly positions of the wastewater tank and the clean water tank. [Claim 12] The automatic water exchange assembly according to any one of claims 1 to 11, wherein the wastewater tank and the clean water tank are made of a transparent material for observing the liquid levels in the wastewater tank and the clean water tank. [Claim 13] The purified water tank includes a purified water tank body and a cleaning solution tank body, Inside the purified water tank, A purified water float ball base is provided at the bottom of the purified water tank body, The automatic water exchange assembly according to claim 1, further comprising: a clean water float ball connected to the clean water float ball base, configured to detect the water level, and, when the water level is below a first predetermined threshold, to be controlled by the control device to open the water inlet, thereby automatically adding clean water to the clean water tank. [Claim 14] Inside the aforementioned purified water tank, The automatic water exchange assembly according to claim 13, further comprising: a cleaning fluid float ball base provided at the bottom of the cleaning fluid tank body; and a cleaning fluid float ball connected to the cleaning fluid float ball base, which detects the liquid level of the cleaning fluid and, when the liquid level is higher than a second predetermined threshold, is configured by the control device to pump the cleaning fluid from the cleaning fluid tank body into the clean water tank body via a peristaltic pump. [Claim 15] Inside the aforementioned wastewater tank, The automatic water exchange assembly according to any one of claims 1 to 11, further comprising a wastewater float ball provided at the top of the wastewater tank, which detects the level of wastewater and, when the level is higher than a third predetermined threshold, sequentially opens the wastewater pump and drain valve by the control device, thereby automatically discharging wastewater from the drain to the wastewater tank. [Claim 16] Equipped with a control device and a water tank assembly, The control device is installed inside the water tank assembly and is configured to enable the automatic addition of clean water or cleaning solution to the water tank assembly. The water tank assembly includes a water tank top shell and a clean water tank. The water tank top shell covers the purified water tank, and the purified water tank includes a purified water tank body and a cleaning solution tank body. The purified water tank body includes a water volume detection assembly. An automatic water exchange assembly that, in response to the detection by the water volume detection assembly that the water volume in the clean water tank body has reached a predetermined value, automatically adds a predetermined amount of cleaning solution from the cleaning solution tank body to the clean water tank body under the control of the control device. [Claim 17] The water exchange assembly according to claim 16, wherein the purified water tank includes a purified water tank top cover that covers the purified water tank body, and the purified water tank top cover extends into the water tank top shell. [Claim 18] The water automatic exchange assembly according to claim 17, wherein the clean water tank top cover includes a groove, and a peristaltic pump configured to pump the cleaning liquid from the cleaning liquid tank body into the clean water tank body under the control of the control device is provided in the groove. [Claim 19] The peristaltic pump includes a liquid inlet and a liquid outlet. The water automatic exchange assembly according to claim 18, wherein the liquid inlet extends via a first liquid transport pipe to near the bottom of the cleaning liquid tank body, and the liquid outlet extends via a second liquid transport pipe into the clean water tank body, thereby pumping the cleaning liquid in the cleaning liquid tank body into the clean water tank body. [Claim 20] The automatic water exchange assembly according to claim 17, wherein the cleaning fluid tank body includes a cleaning fluid passage, the cleaning fluid passage extends upward from the inside of the cleaning fluid tank body along the outside of the clean water tank body to the clean water tank top cover, and cleaning fluid is added to the cleaning fluid tank body. [Claim 21] Inside the cleaning solution tank body, A cleaning fluid float ball base is provided at the bottom of the cleaning fluid tank body, A cleaning liquid float ball is provided, which is connected to the cleaning liquid float ball base and detects the liquid level of the cleaning liquid. The automatic water exchange assembly according to claim 19, wherein, when the liquid level of the cleaning solution is below a second predetermined threshold, the addition of cleaning solution to the clean water tank body is stopped under the control of the control device. [Claim 22] The water tank assembly includes a cleaning fluid status indicator lamp, which is controlled to illuminate when the cleaning fluid level is below a second predetermined threshold, according to claim 21. [Claim 23] The water automatic exchange assembly according to claim 16, wherein the side wall of the water tank top shell extends downward along the side wall of the purified water tank, forming a U-shaped structure that encloses the side wall of the purified water tank body. [Claim 24] Inside the purified water tank body, A purified water float ball base is provided at the bottom of the purified water tank body, A clean water float ball is provided, which is connected to the clean water float ball base and configured to detect the water level. The automatic water exchange assembly according to claim 16, wherein the control device is configured to open the water inlet and automatically add clean water to the clean water tank when the water level is below a first predetermined threshold. [Claim 25] The automatic water exchange assembly according to any one of claims 16 to 24, wherein the water volume detection assembly includes a full-water detection sensor, and the response of the water volume detection assembly detecting that the water volume has reached a predetermined value includes the response of the full-water detection sensor detecting that the water volume in the clean water tank body has reached or is approaching a full-water level. [Claim 26] The water volume detection assembly includes a water presence / absence detection sensor, The automatic water exchange assembly according to any one of claims 16 to 24, wherein the water volume detection assembly detects that the water volume has reached a predetermined value, and the water presence / absence detection sensor detects that the water volume in the clean water tank body has reached an anhydrous level. [Claim 27] A self-cleaning maintenance station comprising a water storage chamber, the water storage chamber being used to house an automatic water exchange assembly according to any one of claims 1 to 11. [Claim 28] A self-cleaning maintenance station comprising a water storage chamber, the water storage chamber being used to house an automatic water exchange assembly according to any one of claims 16 to 24.

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