Water supply device, method of cleaning the same, electronic device, computer readable storage medium

Abstract

The present application relates to a kind of water supply equipment and its cleaning method, electronic equipment, computer readable storage medium, wherein the cleaning method of water supply equipment includes: obtaining cleaning opening instruction;According to cleaning instruction, control inlet section, water route branch, waste water branch and flush branch passage, flush prefilter, reverse osmosis filter and postfilter;According to the time of flushing, reach first preset time and end flushing.It is flushed according to the cleaning method of the present application, and prefilter, reverse osmosis filter and postfilter are flushed, and the impurities, dirt and precipitate accumulated in the use process of filter can be effectively removed, the accumulation of impurities on filter is reduced, the risk of filter clogging is reduced, not only the actual service life of filter is prolonged, but also the cost of frequent replacement of filter is reduced.

Description

Technical Field

[0001] This invention relates to the field of water purification equipment technology, and in particular to a water supply device and its cleaning method, electronic equipment, and computer-readable storage medium. Background Technology

[0002] As living standards improve, water supply equipment is gradually becoming a standard feature of quality living. Among them, reverse osmosis water purifiers are particularly popular because they can effectively remove various pollutants from tap water.

[0003] The filter cartridge is a key component of a water purification system, and it needs to be replaced after reaching its rated lifespan. In existing systems, the filter cartridge is installed inside the water supply equipment, which continuously produces water after being powered on. Since the filter cartridge is constantly producing water, impurities from the raw water remain attached to it. Over time, this can lead to slow water production and filter clogging, thus increasing the frequency of filter cartridge replacement. Summary of the Invention

[0004] The purpose of this invention is to at least solve the problem of slow water production or filter clogging caused by impurities in the raw water adhering to the filter element, leading to increased filter element replacement frequency. This purpose is achieved through the following methods:

[0005] A first aspect of the present invention provides a cleaning method for a water supply device, the water supply device including a main water production line, a wastewater branch line, a flushing branch line, a pre-filter, a post-filter, and a reverse osmosis filter. The main water production line includes an inlet section, a water branch line, and an outlet section connected in sequence. The pre-filter, the reverse osmosis filter, and the post-filter are sequentially disposed in the water branch line. The inlet of the wastewater branch line is connected to the wastewater outlet of the reverse osmosis filter. The inlet of the flushing branch line is connected to the outlet of the post-filter through the water branch line. The cleaning method includes: obtaining a cleaning start command; controlling the passage of the inlet section, the water branch line, the wastewater branch line, and the flushing branch line according to the cleaning command to flush the pre-filter, the reverse osmosis filter, and the post-filter; and ending the flushing when the flushing time reaches a first preset time.

[0006] According to the cleaning method for water supply equipment of the present invention, rinsing the pre-filter, reverse osmosis filter, and post-filter effectively removes impurities, dirt, and sediment accumulated during the use of the filter elements, ensuring that each filter element maintains good filtration performance and that the filtration effect does not decline over time. For example, the pre-filter can better remove large particulate impurities from the water, reducing the burden on the subsequent reverse osmosis filter; the reverse osmosis filter can continuously and efficiently remove dissolved solids, heavy metal ions, and other harmful substances from the water; and the post-filter can further improve the taste and quality of the water. Regular rinsing reduces the accumulation of impurities on the filter elements, lowers the risk of filter element clogging, extends the actual service life of the filter elements, and reduces the cost of frequent filter element replacements.

[0007] In addition, the cleaning method for the water supply equipment according to the present invention may also have the following additional technical features:

[0008] In some embodiments of the present invention, the water supply device includes a cleaning switch; the step of obtaining the cleaning start command includes: obtaining a preset start command made by the user to the cleaning switch.

[0009] In some embodiments of the present invention, the cleaning method further includes: obtaining a preset shut-off command from the user to the cleaning switch; and ending the rinsing process according to the preset shut-off command.

[0010] In some embodiments of the present invention, the step of obtaining a preset shut-off command made by the user to the cleaning switch includes: obtaining the user's operation on the cleaning switch and the duration of the operation; and determining that the user has made a preset shut-off command to the cleaning switch based on the duration being a second preset time, wherein the second preset time is greater than or equal to 3 seconds.

[0011] In some embodiments of the present invention, the water supply device further includes a first water tank and a second water tank. The first water tank is connected to the outlet of the outlet section, and the second water tank is connected to the inlet of the inlet section, the outlet of the wastewater branch, and the outlet of the flushing branch, respectively. The cleaning method further includes: obtaining the water level of the second water tank, stopping flushing and issuing a water replacement instruction for the second water tank if the water level is lower than a preset lower limit; or, obtaining the total dissolved solids content data of the raw water in the second water tank, stopping flushing and issuing a water replacement instruction for the second water tank if the total dissolved solids content data is higher than a preset total dissolved solids content.

[0012] In some embodiments of the present invention, the cleaning method further includes: obtaining a first moment when rinsing ends; accumulating the usage time of the water supply equipment after cleaning based on the first moment; and issuing a rinsing reminder message based on the usage time being greater than a preset time period.

[0013] A second aspect of the present invention also provides a water supply device, the water supply device comprising a main water production line, a wastewater branch line, a flushing branch line, a pre-filter, a post-filter, a reverse osmosis filter, and a control device. The main water production line comprises an inlet section, a water branch line, and an outlet section connected in sequence. The pre-filter, the reverse osmosis filter, and the post-filter are sequentially disposed in the water branch line. The inlet of the wastewater branch line is connected to the wastewater outlet of the reverse osmosis filter, and the inlet of the flushing branch line is connected to the outlet of the water branch line. The control device is configured to acquire the cleaning start command, control the passage of the inlet section, the water branch line, the wastewater branch line, and the flushing branch line according to the cleaning command, flush the pre-filter, the reverse osmosis filter, and the post-filter, and end the flushing when the flushing time reaches a first preset time.

[0014] In some embodiments of the present invention, the water supply equipment further includes a cleaning switch, and the control device is electrically connected to the cleaning switch. The control device is configured to acquire a preset start command from the user to the cleaning switch, and control the inlet section, the water branch, the wastewater branch, and the flushing branch passage according to the preset start command to flush the pre-filter, the reverse osmosis filter, and the post-filter. The control device is also configured to acquire a preset stop command from the user to the cleaning switch, and end the flushing according to the preset stop command.

[0015] In some embodiments of the present invention, the water supply device further includes a first water tank and a second water tank. The first water tank is connected to the outlet of the outlet section, and the second water tank is connected to the inlet of the inlet section, the outlet of the wastewater branch, and the outlet of the flushing branch, respectively. The second water tank is equipped with a liquid level detection component, which is electrically connected to the control device. The control device is configured to take the water level of the second water tank and stop flushing and issue a water replacement instruction message for the second water tank when the water level is lower than a preset lower limit.

[0016] In some embodiments of the present invention, the water supply equipment further includes a self-priming pump, a first solenoid valve, a second solenoid valve, and a wastewater valve. The self-priming pump is located in the inlet section, the first solenoid valve is located in the outlet section, the second solenoid valve is located in the flushing circuit, and the wastewater valve is located in the wastewater branch. The control device is electrically connected to the self-priming pump, the first solenoid valve, the second solenoid valve, and the wastewater valve, respectively.

[0017] In some embodiments of the present invention, the water supply device further includes a first TDS probe and a second TDS probe disposed on the water path branch. The first TDS probe is located upstream of the pre-filter cartridge, and the second TDS probe is located downstream of the post-filter cartridge. The control device is electrically connected to the first TDS probe and the second TDS probe, respectively. The control device is configured to acquire the TDS data of the raw water in the second water tank, stop flushing and issue a water replacement instruction for the second water tank if the TDS data is higher than a preset total dissolved solids content.

[0018] A third aspect of the present invention also provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the cleaning method for the water supply equipment described in any one of the first aspects of the technical solutions.

[0019] A fourth aspect of the present invention also provides an electronic device, a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, it implements the cleaning method for a water supply device as described in any one of the first aspects of the technical solution. Attached Figure Description

[0020] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. Wherein:

[0021] Figure 1 This is a schematic diagram of the internal structure of a water supply device according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the composite filter element, reverse osmosis filter element, and water circuit adapter plate according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of a waterway adapter plate according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of a cleaning filter element according to an embodiment of the present invention;

[0025] Figure 5 This is a block diagram illustrating the water circuit connections of various components in a water supply device according to an embodiment of the present invention.

[0026] Figure 6 This is a block diagram illustrating the control device of an embodiment of the present invention, which is electrically connected to a self-priming pump, a first solenoid valve, a second solenoid valve, a first TDS probe, and a wastewater valve.

[0027] Figure 7 This is a flowchart illustrating the cleaning method for a water supply device according to an embodiment of the present invention.

[0028] Figure 8 This is a flowchart illustrating the cleaning method for a water supply device according to another embodiment of the present invention.

[0029] Figure 9 This is a flowchart illustrating the cleaning method for a water supply device according to another embodiment of the present invention.

[0030] Figure 10 This is a flowchart illustrating the cleaning method for a water supply device according to another embodiment of the present invention.

[0031] Figure 11 This is a flowchart illustrating the cleaning method for a water supply device according to another embodiment of the present invention.

[0032] Figure 12 This is a flowchart illustrating the cleaning method for a water supply device according to another embodiment of the present invention.

[0033] The labels in the attached diagram are as follows:

[0034] 1. Water supply equipment;

[0035] 31. Composite filter element; 32. Reverse osmosis filter element;

[0036] 38. Water circuit adapter plate; 381. First plug group; 3811. First plug; 3812. Second plug; 3813. Third plug; 3814. Fourth plug; 382. Second plug group; 3821. Fifth plug; 3822. Sixth plug; 3823. Seventh plug; 383. First water inlet branch; 384. First water outlet branch; 385. Second water inlet branch; 386. Second water outlet branch; 387. Wastewater passage;

[0037] 34. First check valve; 35. Second check valve; 36. First solenoid valve; 37. Second solenoid valve; 391. First TDS probe; 392. Second TDS probe; 310. Self-priming pump;

[0038] 20. First water tank; 12. Second water tank;

[0039] 81. Main water supply line; 811. Inlet section; 812. Outlet section;

[0040] 82. Wastewater branch line; 821. Wastewater valve;

[0041] 83. Flush the branch lines;

[0042] 200. Control device; 2001. Processor; 2002. Memory. Detailed Implementation

[0043] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0044] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0045] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0046] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between the components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure rotates, then an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0048] This invention proposes a water supply device; please refer to... Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a water supply device 1 is proposed. The water supply device 1 includes a main water production line 81, a wastewater branch line 82, a flushing branch line 83, a composite filter element 31, and a reverse osmosis filter element 32. The composite filter element 31 includes a pre-filter element (not shown in the figure) and a post-filter element (not shown in the figure). The main water production line 81 includes an inlet section 811, a water branch line, and an outlet section 812 connected in sequence. The inlet of the wastewater branch line 82 is connected to the wastewater outlet of the reverse osmosis filter element 32, and the inlet of the flushing branch line 83 is connected to the outlet of the water branch line.

[0049] Specifically, the water supply equipment 1 also includes a water circuit adapter plate 38. The water circuit branch includes multiple mutually isolated water circuit passages located inside the water circuit adapter plate 38. The water circuit adapter plate 38 is provided with a first plug group 381 that communicates with the water circuit passages. The first plug group 381 includes multiple plugs that protrude from the water circuit adapter plate 38 and communicate with the water circuit passages in the water circuit adapter plate 38. The composite filter element 31 is provided with a socket that engages with the plugs in the first plug group 381. The composite filter element 31 is detachably plugged into the first plug group 381. When it is necessary to replace the composite filter element 31, simply unplug the corresponding composite filter element 31 from the first plug group 381 and insert a new filter element. The operation is very convenient. The water circuit adapter plate 38 is also provided with a second plug group 382 that communicates with the water circuit passage. The second plug group 382 includes multiple plugs that protrude from the water circuit adapter plate 38 and communicate with the water circuit passage in the water circuit adapter plate 38. The reverse osmosis filter element 32 is provided with a socket that is engaged with the plug in the second plug group 382. The reverse osmosis filter element 32 is detachably plugged into the second plug group 382, ​​which facilitates operation when maintenance or replacement of the reverse osmosis filter element 32 is required.

[0050] The inlet section 811 is connected to the outlet section 812 through a water branch in the water transfer plate 38. Raw water enters the water transfer plate 38 from the inlet section 811, and after being filtered by the composite filter element 31 and the reverse osmosis filter element 32, it flows into the outlet section 812 from the water transfer plate 38 and finally outputs pure water.

[0051] In detail, the waterway branch includes a first inlet branch 383, a first outlet branch 384, a second inlet branch 385, a second outlet branch 386, and a wastewater passage 387. The outlet end of the wastewater passage 387 is connected to the inlet end of the wastewater branch 382. The first plug assembly 381 includes a first plug 3811 connected to the first inlet branch 383, a second plug 3812 connected to the inlet end of the first outlet branch 384, a third plug 3813 connected to the outlet end of the second inlet branch 385, and a fourth plug 3814 connected to the inlet end of the second outlet branch 386. The second plug assembly 382 includes a fifth plug 3821 connected to the outlet end of the first outlet branch 384, a sixth plug 3822 connected to the inlet end of the second inlet branch 385, and a seventh plug 3823 connected to the inlet end of the wastewater passage 387.

[0052] The composite filter element 31 has four insertion holes, which are detachably connected to the first plug 3811, the second plug 3812, the third plug 3813, and the fourth plug 3814, respectively. The reverse osmosis filter element 32 has three insertion holes, which are detachably connected to the fifth plug 3821, the sixth plug 3822, and the seventh plug 3823, respectively. When the composite filter element 31 is installed in the first installation position, the composite filter element 31 is connected to the inlet section 811 through the first inlet branch 383 and to the reverse osmosis filter element 32 through the first outlet branch 384. The composite filter element 31 is also connected to the reverse osmosis filter element 32 through the second inlet branch 385 and to the outlet section 812 through the second outlet branch 386. The reverse osmosis filter element 32 is connected to the wastewater branch 82 through the wastewater passage 387.

[0053] In this embodiment, as Figure 5As shown, during the cleaning process of composite filter element 31 and reverse osmosis filter element 32, the flow path of the raw water is as follows: inlet section 811, first inlet branch 383, first connector 3811, pre-filter element, second connector 3812, first outlet branch 384, fifth connector 3821, reverse osmosis filter element 32, seventh connector 3823, wastewater passage 387, and wastewater branch 82. The wastewater after rinsing the reverse osmosis filter element 32 is discharged through wastewater branch 82. The above raw water flow sequence can thoroughly rinse the reverse osmosis filter element 32. It should be noted that during the cleaning process of composite filter element 31 and reverse osmosis filter element 32, the flow of raw water also includes another flow path. This other flow path is as follows: inlet section 811, first inlet branch 383, first connector 3811, pre-filter element, second connector 3812, first outlet branch 384, fifth connector 3821, reverse osmosis filter element 32, sixth connector 3822, second inlet branch 385, third connector 3813, post-filter element, fourth connector 3814, and second outlet branch 386. Wastewater after rinsing the reverse osmosis filter element 32 is discharged through the second outlet branch 386 and the rinsing branch 83. This arrangement allows for rinsing of the pre-filter element, post-filter element, and reverse osmosis filter element 32 from two different paths, ensuring that the water flow can reach different parts of the reverse osmosis filter element 32, including some hard-to-reach corners and pores. This allows for a more comprehensive removal of impurities adhering to the pre-filter, post-filter, and reverse osmosis filter, improving the thoroughness of the cleaning. Water flows along different paths can generate different flushing directions and intensities, creating multi-angle impacts on impurities and enhancing the cleanliness of the cleaning process.

[0054] Please combine Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the pre-filter has sockets that mate with the first plug 3811 and the second plug 3812, and the post-filter has sockets that mate with the third plug 3813 and the fourth plug 3814. When the composite filter 31 is installed in the first mounting position, the pre-filter is connected to the first inlet branch 383 and the first outlet branch 384 through the first plug 3811 and the second plug 3812, respectively. The post-filter is connected to the second inlet branch 385 and the second outlet branch 386 through the third plug 3813 and the fourth plug 3814, respectively. This allows the pre-filter to connect to the inlet section 811 through the first inlet branch 383 and to the reverse osmosis filter 32 through the first outlet branch 384. The post-filter connects to the reverse osmosis filter 32 through the second inlet branch 385 and to the outlet section 812 through the second outlet branch 386.

[0055] During the water production process of water supply equipment 1, the flow path of raw water is as follows: inlet section 811, first inlet branch 383, first connector 3811, pre-filter, second connector 3812, first outlet branch 384, fifth connector 3821, and reverse osmosis filter 32. After entering the reverse osmosis filter 32, the raw water will generate pure water and wastewater. The pure water passes through the sixth connector 3822, second inlet branch 385, third connector 3813, post-filter, fourth connector 3814, second outlet branch 386, and outlet section 812 in sequence. The wastewater is discharged from the wastewater outlet of the reverse osmosis filter 32 through the seventh connector 3823, wastewater passage 387, and wastewater branch 82. That is, the raw water first undergoes the first filtration through the pre-filter, then the second filtration through the reverse osmosis filter 32, and then the third filtration through the post-filter. Finally, the pure water generated is output through outlet section 812.

[0056] In this embodiment, please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, by setting up a flushing branch 83, when flushing the reverse osmosis filter element 32, the post-filter element and the pure water outlet of the reverse osmosis filter element 32 can also be flushed. That is, the flushing path is: inlet section 811, first inlet branch 383, first plug 3811, pre-filter element, second plug 3812, first outlet branch 384, fifth plug 3821, reverse osmosis filter element 32, sixth plug 3822, second inlet branch 385, third plug 3813, post-filter element, fourth plug 3814, second outlet branch 386, flushing branch 83. The wastewater after flushing the reverse osmosis filter element 32 is discharged through the flushing branch 83.

[0057] Furthermore, the water supply equipment 1 also includes a first one-way valve 34, a second one-way valve 35, a first water tank 20, a second water tank 12, and a self-priming pump 310. The first one-way valve 34 is located in the second inlet branch and is unidirectionally open from the reverse osmosis filter element 32 to the post-filter element. The pure water filtered by the reverse osmosis filter element 32 flows from the pure water outlet of the reverse osmosis filter element 32 into the second inlet branch 385 and then flows through the first one-way valve 34 and into the post-filter element via the third plug 3813. The second one-way valve 35 is located in the flushing branch 83 and is unidirectionally open from the second outlet branch 386 to the second water tank 12. The first water tank 20 is connected to the outlet of the outlet section 812. The second water tank 12 is connected to the inlet of the inlet section 811, the outlet of the wastewater branch 82, and the outlet of the flushing branch 83. The self-priming pump 310 is located in the inlet section 811 and is used to drive the water in the inlet section 811 to flow from the inlet of the inlet section 811 to the first inlet branch 383. During the flushing of the pure water outlet of the reverse osmosis filter element 32, the second one-way valve 35 can prevent water containing impurities after flushing the reverse osmosis filter element 32 from flowing back from the second water tank 12 to the second outlet branch 386 and the outlet section 812, thus preventing contamination of the outlet section 812 and the first water tank 20 connected to the outlet section 812.

[0058] Furthermore, the water supply equipment 1 also includes a first solenoid valve 36, a second solenoid valve 37, and a wastewater valve 821. The first solenoid valve 36 is located in the outlet section 812, the second solenoid valve 37 is located in the flushing branch 83, and the wastewater valve 821 is located in the wastewater branch 82. The first solenoid valve 36 and the second solenoid valve 37 respectively control the connection or closure of the outlet section 812 and the flushing branch 83, thereby controlling the path of water flow. The wastewater valve 821 controls the water flow rate in the wastewater branch 82 by controlling the size of its opening.

[0059] In detail, during the cleaning of the pre-filter and reverse osmosis filter 32, in the path of rinsing the reverse osmosis filter 32 through the wastewater branch 82, the first solenoid valve 36 and the second solenoid valve 37 are closed, and the wastewater valve 821 increases its opening. The flow path of the raw water is as follows: inlet section 811, first inlet branch 383, first plug 3811, pre-filter, second plug 3812, first outlet branch 384, fifth plug 3821, reverse osmosis filter 32, seventh plug 3823, wastewater passage 387, and wastewater branch 82. The wastewater after rinsing the reverse osmosis filter 32 is discharged through the wastewater branch 82.

[0060] In the flushing path of the reverse osmosis filter element 32 and the post-filter element using the flushing branch 83, the first solenoid valve 36 is closed, the second solenoid valve 37 is open, and the wastewater valve 821 is reduced to its minimum opening. At this time, the flow path of the raw water is as follows: inlet section 811, first inlet branch 383, first plug 3811, pre-filter element, second plug 3812, first outlet branch 384, fifth plug 3821, reverse osmosis filter element 32, sixth plug 3822, second inlet branch 385, third plug 3813, post-filter element, fourth plug 3814, second outlet branch 386, and flushing branch 83. The wastewater after flushing the reverse osmosis filter element 32 is discharged through the flushing branch 83.

[0061] Furthermore, such as Figure 5 As shown, the water supply equipment 1 also includes a first TDS probe 391 and a second TDS probe 392. The first TDS probe 391 is located in the first inlet branch 383, and the second TDS probe 392 is located in the second outlet branch 386. The first TDS probe 391 is used to detect the inlet TDS of the raw water in the first inlet branch 383, and the second TDS probe 392 is used to detect the outlet TDS of the pure water in the second outlet branch 386. Based on the inlet TDS and outlet TDS detected by the first TDS probe 391 and the second TDS probe 392, it can be determined whether the desalination rate of the pure water in the outlet water channel meets the standard. TDS is an abbreviation for Total Dissolved Solids, also known as the total amount of dissolved solids. TDS refers to the total amount of all solutes in water, including both inorganic and organic matter. TDS mainly reflects the concentration of calcium, magnesium, sodium, potassium, and other ions in water, as well as the total amount of dissolved solids in the water.

[0062] Understandably, when the first TDS probe 391 and the second TDS probe 392 detect that the effluent desalination rate is not up to standard, the second solenoid valve 37 opens and the first solenoid valve 36 closes. The water in the second effluent branch 386 flows to the flushing branch 83 and finally flows back to the second water tank 12 or is discharged directly as wastewater through the wastewater direct discharge pipe. When the first TDS probe 391 and the second TDS probe 392 detect that the effluent desalination rate is up to standard, the second solenoid valve 37 closes and the first solenoid valve 36 opens. The water in the second effluent branch 386 flows to the effluent section 812 and is stored in the first water tank 20 for user use.

[0063] For details, please refer to Figure 2 and Figure 5As shown, when the composite filter element 31 is installed in the first mounting section and the water supply equipment 1 is producing water, the raw water in the second water tank 12 flows into the first inlet branch 383 through the inlet section 811. At this time, the first TDS probe 391 detects the inlet TDS of the raw water. The raw water enters the pre-filter element through the first plug 3811. After coarse filtration by the pre-filter element, it flows into the first outlet branch 384 through the second plug 3812, and then enters the reverse osmosis filter element 32 through the fifth plug 3821. After filtration by the reverse osmosis filter element 32, it is separated into a pure water stream and a wastewater stream. The pure water flows into the second inlet branch 385 through the outlet of the reverse osmosis filter element through the sixth plug 3822, and then flows into the post-filter element for further filtration through the first one-way valve 34 and the third plug 3813. The pure water after further filtration flows into the second outlet branch 386 through the fourth plug 3814. At this time, the second TDS probe 392 detects the outlet TDS of the pure water. After the effluent desalination rate meets the standard, the second solenoid valve 37 closes and the first solenoid valve 36 opens. Water in the second effluent branch 386 flows to the effluent section 812, and the water in the effluent section 812 flows and is stored in the first water tank 20. When the first TDS probe 391 and the second TDS probe 392 detect that the effluent desalination rate does not meet the standard, the second solenoid valve 37 opens and the first solenoid valve 36 closes. Pure water in the second effluent branch 386 flows into the second water tank 12 through the flushing branch 83 and sequentially through the second one-way valve 35 and the second solenoid valve 37, or is discharged directly as wastewater through the wastewater direct discharge pipe. Wastewater filtered by the reverse osmosis filter element 32 flows from the wastewater outlet through the seventh plug 3823 and the wastewater branch 82, then through the wastewater valve 821 into the second water tank 12, or is discharged directly as wastewater through the wastewater direct discharge pipe.

[0064] When users collect drinking water, the TDS (Total Dissolved Solids) of the effluent increases with the duration of water collection due to wastewater backflow. Therefore, the design is to activate the direct wastewater discharge procedure once the user's drinking water collection time reaches a certain value. This maintains normal water production by opening the second solenoid valve 37 and closing the first solenoid valve 36. Wastewater from the flushing branch 83 and wastewater branch 82 is directly discharged through the direct wastewater discharge pipe, without entering the second water tank 12. The effluent TDS quickly returns to its initial level with minimal impact on drinking water flow.

[0065] Understandably, the total dissolved solids data detected by the first TDS probe 391 is the same as the total dissolved solids data of the raw water in the second water tank.

[0066] This invention also proposes a method for cleaning water supply equipment, such as... Figure 5 and Figure 7 As shown, the cleaning method includes the following steps:

[0067] Step S101: Obtain the cleaning start command;

[0068] Step S102: Control the inlet section, water branch, wastewater branch and flushing branch passages according to the cleaning command to flush the pre-filter, reverse osmosis filter and post-filter.

[0069] Step S103: End rinsing when the first preset time has been reached.

[0070] In step S101, the cleaning start command can be manually triggered by the user, for example, by sending a command through a button on the device, control panel, or remote control terminal. Alternatively, the device itself can automatically trigger the cleaning program based on preset time intervals, water quality test results, and other conditions.

[0071] In step S102, upon receiving the cleaning start command, the water supply equipment initiates the flushing process. Specifically, clean water is introduced into the inlet section to provide sufficient water flow for the flushing process. The water flow is distributed sequentially to different filter cartridges for flushing. For the pre-filter cartridge, the water flow can flush away large particles and deposits. For the reverse osmosis filter cartridge, the water flow can remove dirt and blockages from the membrane surface. For the post-filter cartridge, the water flow can wash away any adsorbed odors and microorganisms.

[0072] In detail, during the cleaning process of composite filter element 31 and reverse osmosis filter element 32, the flow path of raw water is as follows: inlet section 811, first inlet branch 383, first plug 3811, pre-filter element, second plug 3812, first outlet branch 384, fifth plug 3821, reverse osmosis filter element 32, seventh plug 3823, wastewater passage 387, and wastewater branch 82. The wastewater after rinsing the reverse osmosis filter element 32 is discharged through wastewater branch 82. The above raw water flow sequence can fully rinse the wastewater outlets of the pre-filter element and reverse osmosis filter element 32. It should be noted that during the cleaning of the composite filter element 31 and the reverse osmosis filter element 32, the flow of raw water also includes another flow path. This other flow path is as follows: inlet section 811, first inlet branch 383, first connector 3811, pre-filter element, second connector 3812, first outlet branch 384, fifth connector 3821, reverse osmosis filter element 32, sixth connector 3822, second inlet branch 385, third connector 3813, post-filter element, fourth connector 3814, and second outlet branch 386. The wastewater after rinsing the reverse osmosis filter element 32 is discharged through the second outlet branch 386 and the rinsing branch 83. This raw water flow sequence can thoroughly rinse the pure water outlets of the post-filter element and the reverse osmosis filter element 32. This arrangement allows for rinsing of the pre-filter element, post-filter element, and reverse osmosis filter element 32 from two different paths, thereby enhancing the rinsing effect. By precisely controlling the pathways of these branches, comprehensive and efficient rinsing of each filter element can be achieved.

[0073] In step S103, the first preset time is preset based on the characteristics and cleaning requirements of different filter elements. During the rinsing process, the equipment monitors the rinsing time in real time. When the rinsing time reaches the first preset time, the equipment automatically stops rinsing and returns to normal filtration operation. The first preset time can be set to any value between 2 minutes and 10 minutes, for example, 2 minutes, 3 minutes, 4 minutes, 5 minutes, 6 minutes, 7 minutes, 8 minutes, 9 minutes, 10 minutes, etc. In this embodiment, the first preset time is set to 5 minutes.

[0074] According to the cleaning method for water supply equipment of the present invention, rinsing the pre-filter, reverse osmosis filter, and post-filter effectively removes impurities, dirt, and sediment accumulated during the use of the filter elements, ensuring that each filter element maintains good filtration performance and that the filtration effect does not decline over time. For example, the pre-filter can better remove large particulate impurities from the water, reducing the burden on the subsequent reverse osmosis filter; the reverse osmosis filter can continuously and efficiently remove dissolved solids, heavy metal ions, and other harmful substances from the water; and the post-filter can further improve the taste and quality of the water. Regular rinsing reduces the accumulation of impurities on the filter elements, lowers the risk of filter element clogging, extends the actual service life of the filter elements, and reduces the cost of frequent filter element replacements.

[0075] In some embodiments, please combine Figure 5 and Figure 8 As shown, the cleaning method includes the following steps:

[0076] Step S201: Obtain the preset start command given by the user to the cleaning switch;

[0077] Step S202: Control the inlet section, water branch, wastewater branch and flushing branch passages according to the preset start command to flush the pre-filter, reverse osmosis filter and post-filter.

[0078] Step S203: End rinsing when the first preset time has been reached.

[0079] In this embodiment, steps S202 and S102 are the same, and steps S203 and S103 are the same, so they will not be described again here.

[0080] The water supply equipment also includes a cleaning switch, which can be a separate physical button installed on the control panel or in an easily accessible location. Users can send a preset start command by pressing the button. Alternatively, the cleaning switch can use touch-sensitive technology, triggering the cleaning program when a user touches a specific area.

[0081] In some embodiments, wireless communication technology can also be used, allowing users to control the cleaning switch using remote devices such as remote controls or mobile apps. For example, a user can remotely start the cleaning program of the water supply system when leaving home so that clean water can be used upon returning.

[0082] A preset start command is a signal sent by the user to the water supply equipment via the cleaning switch to initiate the cleaning program. The preset start command can be set to generate a cleaning start signal sent to the water supply equipment by operating the cleaning switch individually or in combination of multiple operating operations. For example, a single operation includes pressing the cleaning switch once; multiple operations include clicking the cleaning switch multiple times within a preset time period, such as clicking the cleaning switch twice consecutively within 2 seconds. This ensures that the preset start command sent by the cleaning switch is unique and that the water supply equipment can accurately identify the user's operation, avoiding misoperation and interference.

[0083] In some embodiments, please combine Figure 5 and Figure 9 As shown, the cleaning method includes the following steps:

[0084] Step S301: Obtain the user's preset start command for the cleaning switch;

[0085] Step S302: Control the inlet section, water branch, wastewater branch and flushing branch passages according to the preset start command to flush the pre-filter, reverse osmosis filter and post-filter.

[0086] Step S303: End rinsing when the first preset time has elapsed.

[0087] Step S304: Obtain the user's preset shutdown command for the cleaning switch;

[0088] Step S305: End the rinsing process according to the preset wash-off command.

[0089] In this embodiment, steps S301 and S201 are the same, steps S302 and S202 are the same, and steps S303 and S203 are the same, and will not be repeated here.

[0090] In steps 304 and 305, when the water supply equipment is performing the flushing step, that is, when the water supply equipment is performing step S302, if the flushing time has not reached the first preset time, and if a preset shut-off command is received from the user to the cleaning switch, the water supply equipment ends the flushing so that the water supply equipment can meet the user's normal water production needs.

[0091] A preset shutdown command is a signal sent by the user to the water supply equipment via the cleaning switch to initiate the cleaning program. The preset shutdown command can be set to generate a cleaning start signal sent to the water supply equipment by operating the cleaning switch individually or in combination of multiple operations. For example, a single operation includes pressing the cleaning switch once; multiple operations include clicking the cleaning switch multiple times within a preset time period, such as clicking the cleaning switch twice consecutively within 2 seconds. This ensures that the preset shutdown command sent by the cleaning switch is unique and that the water supply equipment can accurately identify the user's operation, avoiding misoperation and interference. It should be noted that the specific operation methods of the preset shutdown command and the preset start command are different.

[0092] In this embodiment, the step of obtaining the user's preset shutdown command for the cleaning switch includes:

[0093] The system obtains the user's operation of the washing switch and the duration of operation. Based on the duration being a second preset time, it determines that the user has issued a preset shutdown command to the washing switch, where the second preset time is greater than or equal to 3 seconds. In this embodiment, the purpose of setting the preset shutdown command is to prevent accidental operation and avoid accidentally stopping the washing process. Specifically, in daily use, users may accidentally touch the washing switch, easily interrupting the washing process due to accidental contact. Requiring continuous pressing for 3 seconds or more greatly reduces the possibility of accidental stopping of the washing process. By setting a longer continuous pressing time to trigger the preset shutdown command, the system can clearly distinguish the user's true intention to turn the washing process on and off, avoiding erroneous responses.

[0094] It should also be noted that setting the second preset time to 3 seconds or more can reduce frequent switching: if the flushing operation is too easily triggered, users may inadvertently and frequently turn the flushing on and off, which will place an unnecessary burden on the water supply equipment's control system and affect the equipment's stability and lifespan. By setting a duration of 3 seconds, this frequent switching can be reduced, allowing the equipment to operate more stably.

[0095] In this embodiment, by setting a preset shut-off command and ending the flushing process according to the preset shut-off command, the flexibility and responsiveness of the water supply equipment during operation can be improved. For example, if a user needs water during the flushing process, such as for cooking, drinking, or other emergency purposes, the user can issue a preset shut-off command by operating the cleaning switch. Upon receiving the command, the water supply equipment will quickly stop flushing and resume normal water production to meet the user's needs. This ensures that the equipment can be effectively cleaned and maintained when necessary, and can respond promptly to user emergencies without affecting the normal use of the water supply equipment.

[0096] In some embodiments, such as Figure 5 and Figure 10 As shown, the cleaning method includes the following steps:

[0097] Step S401: Obtain the cleaning start command;

[0098] Step S402: Control the inlet section, water branch, wastewater branch and flushing branch passages according to the cleaning command to flush the pre-filter, reverse osmosis filter and post-filter.

[0099] Step S403: End rinsing when the first preset time has elapsed.

[0100] Step S404: Obtain the water level of the second water tank, stop flushing when the water level is lower than the preset lower limit, and issue a water replacement instruction message for the second water tank.

[0101] In this embodiment, steps S401 and S101 are the same, steps S402 and S102 are the same, and steps S403 and S103 are the same, and will not be repeated here.

[0102] Specifically, in step S404, during the water production process, the raw water in the second water tank is filtered through a pre-filter and a reverse osmosis filter, then divided into two streams: one for wastewater and the other for pure water. The wastewater flows back to the second water tank from the wastewater outlet of the reverse osmosis filter via a wastewater branch. The pure water is filtered again by a post-filter and then transported to the first water tank for storage via the outlet section of the main water production line. Therefore, as water production continues, the water level in the second water tank gradually decreases, and the TDS value of the raw water in the second tank gradually increases. That is, during the water production process, the water level in the second water tank and the TDS value of the raw water are inversely correlated; the lower the water level in the second water tank, the higher the TDS value of the raw water in the second water tank. Therefore, when the water level in the second water tank is lower than the lower limit, it means that the quality of the raw water in the second water tank is lower than the lower limit required for cleaning the filter cartridges. If the pre-filter, post-filter, and reverse osmosis filter cartridges are cleaned, the cleaning effect will be greatly reduced. Therefore, by monitoring the water level in the second water tank, when the water level is lower than the lower limit, a water replacement instruction message is issued to remind the user to replace the raw water in the second water tank to improve the quality of the raw water.

[0103] The water change indication information can be configured in various ways. For example, in some embodiments, a water change indicator light is provided on the water supply device, and the water change indication information is configured to illuminate the indicator light, using different colors or flashing patterns to distinguish different states. For example, a flashing red indicator light indicates that the second water tank needs a water change. In other embodiments, the water change indication information is configured to emit a specific sound signal, such as a buzzer or voice prompt. For example, the device may issue a voice prompt saying "Please change the water in the second water tank." In still other embodiments, the water change indication information is configured to be displayed on the screen of the water supply device, including text descriptions and possible graphic prompts. For example, the specific water level value of the second water tank can be displayed on the screen, allowing the user to more intuitively understand the water shortage level of the tank.

[0104] In this embodiment, the water change indicator is set to a flashing "Please change water" icon, which pauses after a preset countdown time. The preset time period can be set to 10 seconds, 10 minutes, etc.

[0105] In some embodiments, such as Figure 5 and Figure 11 As shown, the cleaning method includes the following steps:

[0106] Step S501: Obtain the cleaning start command;

[0107] Step S502: Control the inlet section, water branch, wastewater branch and flushing branch passages according to the cleaning command to flush the pre-filter, reverse osmosis filter and post-filter.

[0108] Step S503: End rinsing when the first preset time has elapsed.

[0109] Step S504: Obtain the total dissolved solids content data of the raw water in the second water tank, stop flushing if the total dissolved solids content data is higher than the preset total dissolved solids content, and issue a water change instruction message for the second water tank.

[0110] In this embodiment, steps S501 and S101 are the same, steps S502 and S102 are the same, and steps S503 and S103 are the same, and will not be described again here.

[0111] In step S504, if the total dissolved solids content of the raw water in the second water tank exceeds the preset total dissolved solids content, it indicates that the raw water quality in the second water tank is lower than the lower limit of the water quality required for cleaning the filter cartridge. If the pre-filter, post-filter, and reverse osmosis filter cartridge are cleaned continuously, the cleaning effect will be greatly reduced. Therefore, by monitoring the total dissolved solids content of the raw water in the second water tank, when the total dissolved solids content of the raw water exceeds the preset total dissolved solids content, a water replacement instruction message for the second water tank is issued to remind the user to replace the raw water in the second water tank to improve the quality of the raw water.

[0112] The water change indication information can be configured in various ways. For example, in some embodiments, a water change indicator light is installed on the water supply device, and the water change indication information is configured such that the indicator light illuminates, using different colors or flashing patterns to distinguish different states. For example, a flashing red indicator light indicates that the second water tank needs a water change. In other embodiments, the water change indication information is configured to emit a specific sound signal, such as a buzzer or voice prompt. For example, the device may issue a voice prompt saying "Please change the water in the second water tank." In still other embodiments, the water change indication information is configured to be displayed on the screen of the water supply device, including text descriptions and possible graphic prompts. For example, the specific water level value of the second water tank can be displayed on the screen, allowing the user to more intuitively understand the degree of water shortage in the second water tank.

[0113] In some embodiments, such as Figure 5 and Figure 12 As shown, the cleaning method includes the following steps:

[0114] Step S601: Obtain the cleaning start command;

[0115] Step S602: Control the inlet section, water branch, wastewater branch and flushing branch passages according to the cleaning command to flush the pre-filter, reverse osmosis filter and post-filter.

[0116] Step S603: End rinsing when the first preset time has elapsed.

[0117] Step S604: Obtain the first moment after rinsing ends;

[0118] Step S605: Accumulate the usage time of the cleaned water supply equipment based on the first moment;

[0119] Step S606: Issue a rinsing reminder message if the usage time exceeds the preset time cycle.

[0120] In this embodiment, steps S601 and S101 are the same, steps S602 and S102 are the same, and steps S603 and S103 are the same, and will not be described again here.

[0121] In steps S604 to S605, after the water supply device 1 finishes rinsing, it continuously records the end time, i.e., the first moment, and accurately obtains the time interval between the current time and the first moment through a built-in timer or a control system connected to the water supply device, which is the usage time of the water supply device after cleaning. For example, the water supply device 1 starts timing when the last rinse ends, and the timer increments by a corresponding value every unit of time, thus reflecting the running time of the water supply device after rinsing in real time.

[0122] In step S606, when the usage time exceeds a preset time period, the water supply equipment will issue a flushing reminder message, reminding the user that the water supply equipment needs to be flushed again. By setting a time period and issuing a flushing reminder message when the usage time exceeds the preset time period, it can be ensured that the water supply equipment is flushed in a timely manner after a certain period of use. This helps to maintain the cleanliness of the equipment's interior, prevent the accumulation of impurities and dirt, effectively remove impurities and harmful substances from the water, improve water safety, and reduce health risks caused by water quality problems.

[0123] Users may forget when the equipment needs to be flushed regularly. The flushing reminder in this embodiment serves as a reminder, allowing users to maintain the water supply equipment promptly and ensure it is always in good working order. Users do not need to memorize the flushing duration; they only need to perform the corresponding operation after receiving the reminder.

[0124] The flushing reminder process achieves a certain degree of automated management. The water supply equipment automatically calculates the usage time and issues reminder information, reducing the need for manual intervention and improving the intelligence level of the equipment.

[0125] It should be noted that the water supply equipment proposed in this invention also includes a control device 200, such as... Figure 5 and Figure 6 As shown, the control device 200 is electrically connected to the self-priming pump 310, the first TDS probe 391, the second TDS probe 392, the wastewater valve 821, the first solenoid valve 36, the second solenoid valve 37, and the cleaning switch. Specifically, the control device 200 is used to receive electrical signals from the cleaning switch, such as cleaning start commands and preset stop commands. When the control device 200 receives a cleaning start command,

[0126] The control device 200 controls the self-priming pump 310 to start, the first solenoid valve 36 to close, the second solenoid valve 37 to open, and the wastewater valve 821 to open to its maximum value, to flush the pre-filter, reverse osmosis filter and post-filter. After a first preset time, the second solenoid valve 37 is closed and the opening of the wastewater valve 821 is adjusted to its minimum value, ending the flushing process.

[0127] When the control device 200 receives a preset shutdown command, it closes the second solenoid valve 37 and adjusts the opening of the wastewater valve 821 to the minimum value, thus ending the flushing process.

[0128] The water supply equipment proposed in this invention also includes a liquid level detection component, which is installed in the second water tank and used to detect the water level data in the second water tank. The liquid level detection component is electrically connected to the control device. The control device obtains the water level data of the second water tank through the liquid level detection component. When the water level data in the second water tank is lower than the preset lower limit, the control device issues a water replacement instruction message for the second water tank.

[0129] The liquid level detection components include, but are not limited to, pressure sensors, ultrasonic sensors, and capacitive level gauges. For example, in some embodiments, a pressure sensor is installed at the bottom of the second water tank to indirectly determine the water level by detecting the pressure of the water on the bottom of the tank. Water pressure is directly proportional to water level, and the water level data can be accurately calculated by measuring the pressure value. This detection method is suitable for water tanks of various shapes and sizes and has high accuracy and stability. In other embodiments, the liquid level detection component is a capacitive level gauge, which includes two electrodes installed at the first and second water level positions in the second water tank, respectively. When the water level changes, the dielectric constant of the water changes the capacitance between the electrodes. The water level can be determined by measuring the change in capacitance.

[0130] In this embodiment, the liquid level detection component includes a float, a sensor, and a reed switch. The float is typically made of a material with a density less than water, such as plastic or foam. The float can be spherical, cylindrical, or other shapes suitable for floating in water. The float slides up and down on the reed switch as the water level in the second tank changes, and the change in the float's position reflects the water level in the tank.

[0131] The reed switch is installed vertically inside the second water tank and is made of a robust material, such as stainless steel or aluminum alloy, to ensure stability within the tank. The reed switch guides and supports the float, allowing it to slide accurately up and down along the reed switch under buoyancy.

[0132] The sensor is fixed to a reed switch. The sensor includes, but is not limited to, photoelectric sensors, Hall effect sensors, and capacitive sensors. It detects the position of the float and converts it into corresponding water level data. The sensor features high precision, high reliability, and fast response to accurately reflect changes in the water level within the second tank.

[0133] The sensor is positioned near the bottom of the second water tank, and the float is positioned above the sensor. When the float drops with the water level in the second water tank until it touches the sensor, the water level information detected by the sensor is the preset lower limit of the water level.

[0134] Furthermore, the control device 200 also stops rinsing and issues a water change instruction to the second water tank based on the TDS data being higher than the preset total dissolved solids content.

[0135] Specifically, the control device 200 includes a memory 2002 and at least one processor 2001, wherein the memory 2002 stores a program or instructions that can be executed on the processor 2001, and the processor 2001 executes the program or instructions to implement the steps of the cleaning method of the water supply device 1 in this application.

[0136] In one embodiment, an electronic device is provided, including a memory and a processor, the memory storing a computer program, the processor executing the computer program to implement the steps of a cleaning method for a water supply device.

[0137] According to embodiments of the present invention, a computer storage medium is also provided, on which computer-readable instructions are stored. When executed by one or more processors, the computer-readable instructions cause the one or more processors to perform a cleaning method for a water supply device according to any embodiment of the present invention. The cleaning method may include, but is not limited to, at least one of the following steps: obtaining a cleaning start command; controlling the inlet section, water branch, wastewater branch, and flushing branch passages according to the cleaning command to flush the pre-filter, reverse osmosis filter, and post-filter; and ending the flushing process when the flushing time reaches a first preset time.

[0138] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable storage medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable storage medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable storage media include: electrical connections (electronic devices) having one or more wires, portable computer disks (magnetic devices), random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM, or flash memory), fiber optic devices, and compact disc read-only memory (CDROM). Furthermore, computer-readable storage media can even be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in computer memory.

[0139] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0140] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for cleaning a water supply device, characterized in that, The water supply equipment includes a main water production line, a wastewater branch line, a flushing branch line, a pre-filter, a post-filter, and a reverse osmosis filter. The main water production line includes an inlet section, a branch line, and an outlet section connected in sequence. The pre-filter, the reverse osmosis filter, and the post-filter are sequentially located in the branch line. The inlet of the wastewater branch line is connected to the wastewater outlet of the reverse osmosis filter. The inlet of the flushing branch line is connected to the outlet of the post-filter through the branch line. The water supply equipment also includes a first water tank and a second water tank. The first water tank is connected to the outlet of the outlet section, and the second water tank is connected to the inlet of the inlet section, the outlet of the wastewater branch line, and the outlet of the flushing branch line, respectively. The cleaning method includes: Obtain the cleaning start command; The inlet section, the water branch, the wastewater branch, and the flushing branch are controlled according to the cleaning start command to flush the pre-filter, the reverse osmosis filter, and the post-filter. The rinsing process ends when the rinsing time reaches the first preset time. The cleaning method further includes: The water level of the second water tank is obtained, and flushing is stopped and a water replacement instruction message for the second water tank is issued when the water level is lower than the preset lower limit. Alternatively, obtain the total dissolved solids content data of the raw water in the second water tank, and stop flushing and issue a water change instruction message for the second water tank if the total dissolved solids content data is higher than the preset total dissolved solids content.

2. The cleaning method for water supply equipment according to claim 1, characterized in that, The water supply equipment includes a cleaning switch; The step of obtaining the cleaning start command includes: obtaining a preset start command made by the user to the cleaning switch.

3. The cleaning method for water supply equipment according to claim 2, characterized in that, The cleaning method further includes: Obtain the user's preset shutdown command for the cleaning switch; The rinsing process ends according to the preset shutdown command.

4. The cleaning method for water supply equipment according to claim 3, characterized in that, The step of obtaining the user's preset shutdown command for the cleaning switch includes: The user's operation on the cleaning switch and the duration thereof are obtained. Based on the duration being a second preset time, it is determined that the user has issued a preset shutdown command to the cleaning switch, wherein the second preset time is greater than or equal to 3 seconds.

5. The cleaning method for a water supply equipment according to any one of claims 1 to 4, characterized in that, The cleaning method further includes: Capture the first moment after rinsing ends; Based on the first moment, the usage time of the cleaned water supply equipment is accumulated; A rinsing reminder message will be issued if the usage time exceeds a preset time period.

6. A water supply device, characterized in that, The water supply equipment includes a main water production line, a wastewater branch line, a flushing branch line, a pre-filter, a post-filter, a reverse osmosis filter, and a control device. The main water production line includes an inlet section, a water branch line, and an outlet section that are connected in sequence. The pre-filter, the reverse osmosis filter, and the post-filter are sequentially arranged in the water branch line. The inlet of the wastewater branch line is connected to the wastewater outlet of the reverse osmosis filter. The inlet of the flushing branch line is connected to the outlet of the water branch line. The control device is configured to acquire a cleaning start command, control the inlet section, the water branch, the wastewater branch and the flushing branch passage according to the cleaning start command, flush the pre-filter, the reverse osmosis filter and the post-filter, and end the flushing when the flushing time reaches a first preset time. The water supply equipment also includes a first water tank and a second water tank. The first water tank is connected to the outlet of the outlet section, and the second water tank is connected to the inlet of the inlet section, the outlet of the wastewater branch, and the outlet of the flushing branch, respectively. The second water tank is equipped with a liquid level detection component, which is electrically connected to the control device. The control device is configured to acquire the water level of the second water tank, and stop flushing and issue a water replacement instruction for the second water tank when the water level is lower than a preset lower limit.

7. The water supply equipment according to claim 6, characterized in that, The water supply equipment also includes a cleaning switch. The control device is electrically connected to the cleaning switch. The control device is configured to acquire a preset start command from the user to the cleaning switch, and control the inlet section, the water branch, the wastewater branch, and the flushing branch passage according to the preset start command to flush the pre-filter, the reverse osmosis filter, and the post-filter. The control device is also configured to acquire a preset stop command from the user to the cleaning switch, and end the flushing according to the preset stop command.

8. The water supply equipment according to claim 6, characterized in that, The water supply equipment also includes a self-priming pump, a first solenoid valve, a second solenoid valve, and a wastewater valve. The self-priming pump is located in the inlet section, the first solenoid valve is located in the outlet section, the second solenoid valve is located in the flushing circuit, and the wastewater valve is located in the wastewater branch. The control device is electrically connected to the self-priming pump, the first solenoid valve, the second solenoid valve, and the wastewater valve, respectively.

9. The water supply equipment according to claim 6, characterized in that, The water supply equipment also includes a first TDS probe and a second TDS probe located on the water branch. The first TDS probe is located upstream of the pre-filter cartridge, and the second TDS probe is located downstream of the post-filter cartridge. The control device is electrically connected to the first TDS probe and the second TDS probe, respectively. The control device is configured to acquire the TDS data of the raw water in the second water tank, stop flushing and issue an instruction to change the water in the second water tank if the TDS data is higher than a preset total dissolved solids content.

10. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the cleaning method for the water supply equipment according to any one of claims 1 to 5.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the cleaning method for the water supply equipment as described in any one of claims 1-5.

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