Water supply equipment and cleaning method thereof, electronic equipment and computer readable storage medium

Abstract

The invention relates to water supply equipment and a cleaning method thereof, electronic equipment and a computer readable storage medium, and the cleaning method of the water supply equipment comprises the following steps: obtaining a cleaning starting instruction; controlling a water inlet section, a waterway branch, a wastewater branch and a flushing branch passage according to the cleaning instruction, and flushing the front filter element, the reverse osmosis filter element and the rear filter element; and finishing flushing when the flushing time reaches the first preset time. According to the cleaning method, impurities, dirt and sediments accumulated in the use process of the filter elements can be effectively removed by flushing the front filter element, the reverse osmosis filter element and the rear filter element, accumulation of the impurities on the filter elements is reduced, the blocking risk of the filter elements is reduced, the actual service life of the filter elements is prolonged, and the service life of the filter elements is prolonged. And the cost of frequently replacing the filter element is also reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of water purification equipment, and in particular to a water supply equipment and a cleaning method thereof, an electronic device, and a computer-readable storage medium. Background Art

[0002] With the improvement of material living standards, water supply equipment has gradually become a standard for quality life. Among them, reverse osmosis water purifiers are very popular because they can effectively remove a variety of pollutants in tap water.

[0003] The filter element is a key component of a water purification device. When the nominal life of the filter element is reached, the filter element needs to be replaced. In the existing solution, the filter element is set in the water supply equipment. After the water supply equipment is powered on, it has been used to make water. Since the filter element is always in the water making state, the impurities in the raw water are always attached to the filter element. Long-term use can easily lead to problems such as slow water making speed and clogging of the filter element, thereby increasing the frequency of filter element replacement. Summary of the invention

[0004] The purpose of the present invention is to at least solve the problem that the impurities in the raw water adhere to the filter element, resulting in slow water production or blocking the filter element, which leads to increased replacement frequency of the filter element. This purpose is achieved by:

[0005] The first aspect of the present invention proposes a cleaning method for water supply equipment, the water supply equipment includes a water production main circuit, a wastewater branch circuit, a flushing branch circuit, a pre-filter element, a post-filter element and a reverse osmosis filter element, the water production main circuit includes an inlet section, a water branch circuit and a water outlet section which are connected in sequence, the pre-filter element, the reverse osmosis filter element and the post-filter element are arranged in the water branch circuit in sequence, the water inlet of the wastewater branch circuit is connected with the wastewater outlet of the reverse osmosis filter element, and the water inlet of the flushing branch circuit is connected with the water outlet of the post-filter element through the water branch circuit; the cleaning method includes: obtaining a cleaning start instruction; controlling the water inlet section, the water branch circuit, the wastewater branch circuit and the flushing branch circuit according to the cleaning instruction to flush the pre-filter element, the reverse osmosis filter element and the post-filter element; and ending the flushing according to the flushing time reaching a first preset time.

[0006] According to the cleaning method of the water supply equipment of the present invention, by flushing the pre-filter element, reverse osmosis filter element and post-filter element, impurities, dirt and sediment accumulated in the filter element during use can be effectively removed to ensure that each filter element always maintains good filtering performance and the filtering effect does not decrease over time. For example, the pre-filter element can better remove large particle impurities in the water, reducing the burden on the subsequent reverse osmosis filter element; the reverse osmosis filter element can continuously and efficiently remove soluble solids, heavy metal ions and other harmful substances in the water; the post-filter element can further improve the taste and quality of the water. By flushing regularly, the accumulation of impurities on the filter element can be reduced, and the risk of clogging of the filter element can be reduced, which not only extends the actual service life of the filter element, but also reduces the cost of frequent replacement of the filter element.

[0007] In addition, the cleaning method of 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; and the step of obtaining a cleaning start instruction includes: obtaining a preset start instruction made by a user for the cleaning switch.

[0009] In some embodiments of the present invention, the cleaning method further includes: obtaining a preset closing instruction made by a user for the cleaning switch; and ending flushing according to the preset cleaning closing instruction.

[0010] In some embodiments of the present invention, the step of obtaining the preset shut-off instruction made by the user for the cleaning switch includes: obtaining the user's operation on the cleaning switch and the duration thereof, and determining that the user has made the preset shut-off instruction for 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 equipment also includes a first water tank and a second water tank, the first water tank is connected to the water outlet of the water outlet section, and the second water tank is respectively connected to the water inlet of the water inlet section, the water outlet of the wastewater branch and the water outlet of the flushing branch; the cleaning method also includes: obtaining the water level of the second water tank, stopping flushing and issuing a second water tank water change indication message according to the water level being lower than a preset water level lower limit; or, obtaining the total dissolved solids content data of the raw water in the second water tank, stopping flushing and issuing a second water tank water change indication message according to the total dissolved solids content data being higher than a preset total dissolved solids content.

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

[0013] The second aspect of the present invention also proposes a water supply equipment, which includes a water production main circuit, a wastewater branch, a flushing branch, a pre-filter element, a post-filter element, a reverse osmosis filter element and a control device. The water production main circuit includes a water inlet section, a water branch and a water outlet section which are connected in sequence. The pre-filter element, the reverse osmosis filter element and the post-filter element are arranged in the water branch in sequence. The water inlet of the wastewater branch is connected with the wastewater port of the reverse osmosis filter element, and the water inlet of the flushing branch is connected with the water outlet of the water branch. The control device is configured to obtain the cleaning start instruction, control the water inlet section, the water branch, the wastewater branch and the flushing branch according to the cleaning instruction, flush the pre-filter element, the reverse osmosis filter element and the post-filter element, and end the flushing according to the flushing time reaching a first preset time.

[0014] In some embodiments of the present invention, the water supply equipment also includes a cleaning switch, and the control device is electrically connected to the cleaning switch. The control device is configured to obtain a preset start instruction of the user for the cleaning switch, and control the water inlet section, the water branch, the wastewater branch and the flushing branch according to the preset start instruction to flush the pre-filter element, the reverse osmosis filter element and the post-filter element; the control device is also configured to obtain a preset shutoff instruction of the user for the cleaning switch, and end the flushing according to the preset wash shutoff instruction.

[0015] In some embodiments of the present invention, the water supply equipment also includes a first water tank and a second water tank, the first water tank is connected to the water outlet of the water outlet section, and the second water tank is respectively connected to the water inlet of the water inlet section, the water outlet of the wastewater branch and the water outlet of the flushing branch; wherein the second water tank is provided with a liquid level detection component, the liquid level detection component is electrically connected to the control device, and the control device is configured to take the water level of the second water tank, and stop flushing and issue a second water tank water change indication information according to the water level being lower than a preset water level lower limit.

[0016] In some embodiments of the present invention, 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 arranged at the water inlet section, the first solenoid valve is arranged at the water outlet section, the second solenoid valve is arranged at the flushing circuit, and the wastewater valve is arranged at 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 equipment also includes a first TDS probe and a second TDS probe arranged in the water branch, the first TDS probe is located on the upstream side of the pre-filter element, and the second TDS probe is located on the downstream side of the post-filter element, and the control device is electrically connected to the first TDS probe and the second TDS probe, respectively. The control device is configured to obtain TDS data of raw water in the second water tank, stop flushing according to the TDS data being higher than a preset total dissolved solids content, and issue an indication information for changing water in the second water tank.

[0018] The third aspect of the present invention further proposes an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the steps of the water supply equipment cleaning method described in any one of the technical solutions of the first aspect are implemented.

[0019] The fourth aspect of the present invention further proposes an electronic device, a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, a method for cleaning a water supply device as described in any one of the technical solutions of the first aspect is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Various other advantages and benefits will become apparent to those skilled in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. Among them:

[0021] Figure 1 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 structural diagram of a composite filter element, a reverse osmosis filter element, and a waterway adapter plate according to an embodiment of the present invention;

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

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

[0025] Figure 5 A schematic block diagram of the water connection of various components in a water supply device according to an embodiment of the present invention;

[0026] Figure 6 A schematic block diagram of a control device according to an embodiment of the present invention 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 A flowchart of a method for cleaning a water supply device according to an embodiment of the present invention;

[0028] Figure 8 A flowchart of a method for cleaning water supply equipment according to another embodiment of the present invention;

[0029] Fig. 9 A flowchart of a method for cleaning water supply equipment according to another embodiment of the present invention;

[0030] Fig.10 A flowchart of a method for cleaning water supply equipment according to another embodiment of the present invention;

[0031] Fig.11 A flowchart of a method for cleaning water supply equipment according to another embodiment of the present invention;

[0032] Fig.12 This is a working flow chart of a method for cleaning water supply equipment according to another embodiment of the present invention.

[0033] The reference numerals in the accompanying drawings represent the following:

[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 one-way valve; 35. Second one-way 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 route; 811, water inlet section; 812, water outlet section;

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

[0041] 83. Flushing branch;

[0042] 200. Control device; 2001. Processor; 2002. Memory. DETAILED DESCRIPTION

[0043] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0044] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0045] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0046] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is rotated, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both above and below orientations.

[0048] The present invention proposes a water supply device, please combine Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a water supply device 1 is proposed, which includes a water production main circuit 81, a wastewater branch circuit 82, a flushing branch circuit 83, a composite filter element 31 and a reverse osmosis filter element 32, the composite filter element 31 includes a 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 water production main circuit 81 includes a water inlet section 811, a water branch circuit and a water outlet section 812 connected in sequence, the water inlet of the wastewater branch circuit 82 is connected to the wastewater outlet of the reverse osmosis filter element 32, and the water inlet of the flushing branch circuit 83 is connected to the water outlet of the water branch circuit.

[0049] Specifically, the water supply equipment 1 also includes a water channel adapter plate 38, and the water channel branch includes a plurality of mutually blocked water channel passages arranged inside the water channel adapter plate 38. The water channel adapter plate 38 is provided with a first plug group 381 connected to the water channel passage. The first plug group 381 includes a plurality of plugs protruding from the water channel adapter plate 38 and connected to the water channel in the water channel adapter plate 38. The composite filter element 31 is provided with a socket that cooperates with the plug in the first plug group 381. The composite filter element 31 is detachably plugged into the first plug group 381. When the composite filter element 31 needs to be replaced, it is only necessary to unplug the corresponding composite filter element 31 from the first plug group 381 and then insert a new filter element. The operation is very convenient. The water channel adapter plate 38 is also provided with a second plug group 382 connected to the water channel. The second plug group 382 includes a plurality of plugs protruding from the water channel adapter plate 38 and connected to the water channel in the water channel adapter plate 38. The reverse osmosis filter element 32 is provided with a socket that is plugged into and matched with the plug in the second plug group 382. The reverse osmosis filter element 32 is plugged into the second plug group 382 in a detachable manner, which is convenient for operation when the reverse osmosis filter element 32 needs to be maintained or replaced.

[0050] The water inlet section 811 is connected to the water outlet section 812 through the water branch in the water channel adapter plate 38. The raw water enters the water channel adapter plate 38 from the water inlet section 811, is filtered by the composite filter element 31 and the reverse osmosis filter element 32, and then flows from the water channel adapter plate 38 into the water outlet section 812, and finally outputs pure water to the outside.

[0051] In detail, the water channel branch includes a first water inlet branch 383, a first water outlet branch 384, a second water inlet branch 385, a second water outlet branch 386 and a waste water passage 387, and the water outlet end of the waste water passage 387 is connected to the water inlet end of the waste water branch 82. The first plug group 381 includes a first plug 3811 connected to the first water inlet branch 383, a second plug 3812 connected to the water inlet end of the first water outlet branch 384, a third plug 3813 connected to the water outlet end of the second water inlet branch 385, and a fourth plug 3814 connected to the water inlet end of the second water outlet branch 386. The second plug group 382 includes a fifth plug 3821 connected to the water outlet end of the first water outlet branch 384, a sixth plug 3822 connected to the water inlet end of the second water inlet branch 385, and a seventh plug 3823 connected to the water inlet end of the waste water passage 387.

[0052] The composite filter element 31 is provided with four jacks, which are respectively connected to the first plug 3811, the second plug 3812, the third plug 3813 and the fourth plug 3814 in a detachable manner. The reverse osmosis filter element 32 is provided with three jacks, which are respectively connected to the fifth plug 3821, the sixth plug 3822 and the seventh plug 3823 in a detachable manner. When the composite filter element 31 is installed in the first installation position, the composite filter element 31 is connected to the water inlet section 811 through the first water inlet branch 383, and is connected to the reverse osmosis filter element 32 through the first water outlet branch 384. The composite filter element 31 is also connected to the reverse osmosis filter element 32 through the second water inlet branch 385, and is connected to the water outlet section 812 through the second water 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, Figure 5As shown, in the process of cleaning the composite filter element 31 and the reverse osmosis filter element 32, the flow path of the raw water is the water inlet section 811, the first water inlet branch 383, the first plug 3811, the pre-filter element, the second plug 3812, the first water outlet branch 384, the fifth plug 3821, the reverse osmosis filter element 32, the seventh plug 3823, the waste water passage 387, the waste water branch 82, and the waste water after flushing the reverse osmosis filter element 32 is discharged through the waste water branch 82. The above raw water flow sequence can fully flush the reverse osmosis filter element 32. It should be noted that in the process of cleaning the composite filter element 31 and the reverse osmosis filter element 32, the flow of raw water also includes another flow path, which is the water inlet section 811, the first water inlet branch 383, the first plug 3811, the pre-filter element, the second plug 3812, the first water outlet branch 384, the fifth plug 3821, the reverse osmosis filter element 32, the sixth plug 3822, the second water inlet branch 385, the third plug 3813, the post-filter element, the fourth plug 3814, the second water outlet branch 386, and the waste water after flushing the reverse osmosis filter element 32 is discharged through the second water outlet branch 386 and the flushing branch 83. In this way, the pre-filter element, the post-filter element and the reverse osmosis filter element 32 can be flushed from two different paths to ensure that the water flow can reach different parts of the reverse osmosis filter element 32, including some hard-to-reach corners and pores. This can more completely remove impurities attached to the pre-filter, post-filter and reverse osmosis filter, improving the thoroughness of cleaning. Water flows in different paths can produce different flushing directions and intensities, forming multi-angle impacts on impurities, improving the thoroughness of cleaning.

[0054] Please combine Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the pre-filter element is provided with a jack that cooperates with the first plug 3811 and the second plug 3812, and the post-filter element is provided with a jack that cooperates with the third plug 3813 and the fourth plug 3814. When the composite filter element 31 is installed in the first installation position, the pre-filter element is connected to the first water inlet branch 383 and the first water outlet branch 384 through the first plug 3811 and the second plug 3812 respectively, and the post-filter element is connected to the second water inlet branch 385 and the second water outlet branch 386 through the third plug 3813 and the fourth plug 3814 respectively, so that the pre-filter element is connected to the water inlet section 811 through the first water inlet branch 383, and is connected to the reverse osmosis filter element 32 through the first water outlet branch 384, and the post-filter element is connected to the reverse osmosis filter element 32 through the second water inlet branch 385, and is connected to the water outlet section 812 through the second water outlet branch 386.

[0055] During the water production process of the water supply device 1, the flow path of the raw water is the water inlet section 811, the first water inlet branch 383, the first plug 3811, the pre-filter, the second plug 3812, the first water outlet branch 384, the fifth plug 3821, and the reverse osmosis filter 32. After the raw water enters the reverse osmosis filter 32, pure water and waste water will be generated. The pure water passes through the sixth plug 3822, the second water inlet branch 385, the third plug 3813, the post-filter, the fourth plug 3814, the second water outlet branch 386, and the water outlet section 812 in sequence, and the waste water is discharged from the waste water port of the reverse osmosis filter 32 through the seventh plug 3823, the waste water passage 387, and the waste water branch 82. That is, the raw water first passes through the pre-filter for the first filtration, then passes through the reverse osmosis filter 32 for the second filtration, and then passes through the post-filter for the third filtration, and the pure water generated is finally output through the water outlet section 812.

[0056] In this embodiment, please combine Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, by setting 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 the water inlet section 811, the first water inlet branch 383, the first plug 3811, the pre-filter element, the second plug 3812, the first water outlet branch 384, the fifth plug 3821, the reverse osmosis filter element 32, the sixth plug 3822, the second water inlet branch 385, the third plug 3813, the post filter element, the fourth plug 3814, the second water outlet branch 386, and the flushing branch 83, and the waste water after flushing the reverse osmosis filter element 32 is discharged through the flushing branch 83.

[0057] Furthermore, the water supply device 1 further 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 arranged on the second water inlet branch, and the first one-way valve 34 is unidirectionally conducted in the direction 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 water inlet branch 385 and then flows into the post-filter element through the first one-way valve 34 and the third plug 3813. The second one-way valve 35 is arranged on the flushing branch 83, and the second one-way valve 35 is unidirectionally conducted in the direction from the second water outlet branch 386 to the second water tank 12. The first water tank 20 is connected to the water outlet of the water outlet section 812, and the second water tank 12 is respectively connected to the water inlet of the water inlet section 811, the water outlet of the wastewater branch 82 and the water outlet of the flushing branch 83. The self-priming pump 310 is arranged in the water inlet section 811 and is used to drive the water in the water inlet section 811 to flow from the water inlet of the water inlet section 811 to the first water inlet branch 383. In the process of flushing the pure water outlet of the reverse osmosis filter element 32, the second one-way valve 35 can prevent the water containing impurities after flushing the reverse osmosis filter element 32 from flowing back from the second water tank 12 to the second water outlet branch 386 and the water outlet section 812, so as to prevent the water outlet section 812 and the first water tank 20 connected to the water outlet section 812 from being polluted.

[0058] Furthermore, the water supply device 1 further includes a first solenoid valve 36, a second solenoid valve 37 and a wastewater valve 821, wherein the first solenoid valve 36 is arranged at the water outlet section 812, the second solenoid valve 37 is arranged at the flushing branch 83, and the wastewater valve 821 is arranged at the wastewater branch 82. The first solenoid valve 36 and the second solenoid valve 37 respectively control the connection or closing of the water outlet section 812 and the flushing branch 83, thereby controlling the path of water flow. The wastewater valve 821 controls the water flow of the wastewater branch 82 by controlling the size of its own opening.

[0059] In detail, in the process of cleaning the pre-filter and the reverse osmosis filter 32, in the path of flushing 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, in sequence, the water inlet section 811, the first water inlet branch 383, the first plug 3811, the pre-filter, the second plug 3812, the first water outlet branch 384, the fifth plug 3821, the reverse osmosis filter 32, the seventh plug 3823, the wastewater passage 387, and the wastewater branch 82. The wastewater after flushing the reverse osmosis filter 32 is discharged through the wastewater branch 82.

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

[0061] Furthermore, if 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 arranged in the first water inlet branch 383, and the second TDS probe 392 is arranged in the second water outlet branch 386. The first TDS probe 391 is used to detect the inlet TDS of the raw water in the first water inlet branch 383, and the second TDS probe 392 is used to detect the outlet TDS of the pure water in the second water outlet branch 386. According to the inlet TDS and outlet TDS detected by the first TDS probe 391 and the second TDS probe 392, it can be known whether the desalination rate of the pure water in the outlet waterway channel meets the standard. Among them, TDS is the abbreviation of Total Dissolved Solids, and its full name in Chinese is "total dissolved solids", also known as the total amount of dissolved solids. TDS refers to the total amount of all solutes in water, including the content of both inorganic and organic matter. TDS mainly reflects the concentration of calcium, magnesium, sodium, potassium and other ions in water and the total amount of dissolved solids in water.

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

[0063] For details, please combine Figure 2 and Figure 5As shown, when the composite filter element 31 is installed in the first installation part and the water supply device 1 is in the process of making water, the raw water in the second water tank 12 flows into the first water inlet branch 383 through the water 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, flows into the first water outlet branch 384 from the second plug 3812 after being roughly filtered by the pre-filter element, and then enters the reverse osmosis filter element 32 through the fifth plug 3821. After being filtered by the reverse osmosis filter element 32, one path of pure water and one path of waste water are divided. The pure water flows from the water outlet of the reverse osmosis filter element through the sixth plug 3822 into the second water inlet branch 385, and then flows into the post-filter element through the first one-way valve 34 and the third plug 3813 for re-filtration. The re-filtered pure water flows into the second water 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 outlet water desalination rate reaches the standard, the second solenoid valve 37 is closed, the first solenoid valve 36 is opened, the water in the second outlet branch 386 flows to the outlet section 812, and the water in the outlet 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 outlet water desalination rate does not reach the standard, the second solenoid valve 37 is opened, the first solenoid valve 36 is closed, and the pure water in the second outlet branch 386 flows through the flushing branch 83 and sequentially passes through the second check valve 35 and the second solenoid valve 37 into the second water tank 12, or is directly discharged as waste water through the waste water direct discharge pipe. The waste water filtered by the reverse osmosis filter element 32 is directly discharged from the waste water outlet through the seventh plug 3823 and the waste water branch 82, and then through the waste water valve 821 to the second water tank 12, or is directly discharged as waste water through the waste water direct discharge pipe.

[0064] When the user takes drinking water, the outlet TDS will increase with the increase of water taking time due to the reflux of wastewater. Therefore, it is designed that when the user takes drinking water for a certain time, the wastewater direct discharge program is started, that is, the normal water production state is maintained, the second solenoid valve 37 is opened, the first solenoid valve 36 is closed, and the wastewater in the flushing branch 83 and the wastewater branch 82 is directly discharged through the wastewater direct discharge pipeline, and does not enter the second water tank 12. The outlet TDS can be restored to the initial level in a short time, and the impact on the drinking water flux is small.

[0065] It can be understood that the total dissolved solids data detected by the first TDS probe 391 is the total dissolved solids data of the raw water in the second water tank.

[0066] The present invention also provides a method for cleaning a water supply device, such as Figure 5 and Figure 7 As shown, the cleaning method comprises the following steps:

[0067] Step S101: obtaining a cleaning start instruction;

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

[0069] Step S103: ending the flushing when the flushing time reaches a first preset time.

[0070] In step S101, the cleaning start instruction can be manually triggered by the user, for example, by sending an instruction through a button on the device, a control panel or a remote control terminal, or the device itself can automatically trigger the cleaning program according to conditions such as a preset time interval, water quality test results, etc.

[0071] In step S102, after receiving the cleaning start instruction, the water supply equipment starts the flushing step. Specifically, a clean water source is introduced into the water inlet section to provide sufficient water flow for the flushing process. The water branch distributes the water flow to different filter elements in turn for flushing. For the pre-filter element, the water flow can flush away large particles of impurities and sediments. For the reverse osmosis filter element, the water flow can remove dirt and blockages on the membrane surface. For the post-filter element, the water flow can clean away odor substances and microorganisms that may be adsorbed.

[0072] In detail, during the process of cleaning the composite filter element 31 and the reverse osmosis filter element 32, the flow path of the raw water is, in sequence, the water inlet section 811, the first water inlet branch 383, the first plug 3811, the pre-filter element, the second plug 3812, the first water outlet branch 384, the fifth plug 3821, the reverse osmosis filter element 32, the seventh plug 3823, the wastewater passage 387, and the wastewater branch 82. The wastewater after flushing the reverse osmosis filter element 32 is discharged through the wastewater branch 82. The above raw water flow sequence can fully flush the wastewater outlets of the pre-filter element and the reverse osmosis filter element 32. It should be noted that in the process of cleaning the composite filter element 31 and the reverse osmosis filter element 32, the flow of raw water also includes another flow path, which is the water inlet section 811, the first water inlet branch 383, the first plug 3811, the pre-filter element, the second plug 3812, the first water outlet branch 384, the fifth plug 3821, the reverse osmosis filter element 32, the sixth plug 3822, the second water inlet branch 385, the third plug 3813, the post-filter element, the fourth plug 3814, the second water outlet branch 386, and the waste water after flushing the reverse osmosis filter element 32 is discharged through the second water outlet branch 386 and the flushing branch 83. The above raw water flow sequence can fully flush the pure water outlets of the post-filter element and the reverse osmosis filter element 32. In this way, the pre-filter element, the post-filter element and the reverse osmosis filter element 32 can be flushed from two different paths to enhance the flushing effect. By precisely controlling the passage of these branches, comprehensive and efficient flushing of each filter element can be achieved.

[0073] In step S103, the first preset time is pre-set according to the characteristics and cleaning requirements of different filter elements. During the flushing process, the device will monitor the flushing time in real time. When the flushing time reaches the first preset time, the device automatically stops flushing and returns to the normal filtering working state. The first preset time can be set to any value between 2min and 10min, for example, 2min, 3min, 4min, 5min, 6min, 7min, 8min, 9min, 10min, etc. In this embodiment, the first preset time is set to 5min.

[0074] According to the cleaning method of the water supply equipment of the present invention, by flushing the pre-filter element, reverse osmosis filter element and post-filter element, impurities, dirt and sediment accumulated in the filter element during use can be effectively removed to ensure that each filter element always maintains good filtering performance and the filtering effect does not decrease over time. For example, the pre-filter element can better remove large particle impurities in the water, reducing the burden on the subsequent reverse osmosis filter element; the reverse osmosis filter element can continuously and efficiently remove soluble solids, heavy metal ions and other harmful substances in the water; the post-filter element can further improve the taste and quality of the water. By flushing regularly, the accumulation of impurities on the filter element can be reduced, and the risk of clogging of the filter element can be reduced, which not only extends the actual service life of the filter element, but also reduces the cost of frequent replacement of the filter element.

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

[0076] Step S201: obtaining a preset start instruction made by a user for the cleaning switch;

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

[0078] Step S203: ending the flushing when the flushing time reaches a first preset time.

[0079] In this embodiment, step S202 is the same as step S102, and step S203 is the same as step S103, which will not be described in detail herein.

[0080] The water supply device also includes a cleaning switch, which can be set as an independent physical button and installed on the control panel of the water supply device or in a position that is easy to operate. The user can send a preset start instruction by pressing the button. The cleaning switch can also be set to use touch sensing technology, and when the user touches a specific area, the cleaning program can be triggered.

[0081] In some embodiments, wireless communication technology can also be used, and the user can use a remote device such as a remote controller, a mobile phone APP, etc. to control the cleaning switch. For example, the user can remotely start the cleaning program of the water supply device when leaving home so that clean water can be used when returning home.

[0082] The preset start command is a signal sent by the user to the water supply device through the cleaning switch to start the cleaning program. The preset start command can be set to a single operation of the cleaning switch or a combination of multiple operation cleaning switches to generate a cleaning start signal sent to the water supply device. For example, a single operation includes a single press of the cleaning switch; a combination of multiple operations includes multiple clicks on the cleaning switch within a preset time, such as two consecutive clicks on the cleaning switch within 2 seconds, to ensure that the preset start command sent by the cleaning switch should be unique, and facilitate the water supply device to accurately identify the user's operation to avoid misoperation and interference.

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

[0084] Step S301: obtaining a preset start instruction made by the user for the cleaning switch;

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

[0086] Step S303: ending the flushing when the flushing time reaches a first preset time.

[0087] Step S304: obtaining a preset closing instruction made by the user for the cleaning switch;

[0088] Step S305: End the flushing according to the preset wash-off instruction.

[0089] In this embodiment, step S301 is the same as step S201, step S302 is the same as step S202, and step S303 is the same as step S203, which will not be repeated here.

[0090] In step 304 and step 305, when the water supply equipment is performing the flushing step, that is, when the water supply equipment executes step S302, when the flushing time has not reached the first preset time, if the water supply equipment receives a preset closing instruction from the user for 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] The preset shutdown instruction is a signal sent by the user to the water supply device through the cleaning switch to start the cleaning program. The preset shutdown instruction can be set to a single operation cleaning switch or a combination of multiple operation cleaning switches to generate a cleaning start signal sent to the water supply device. For example, a single operation includes pressing the cleaning switch once; a combination of multiple operations includes clicking the cleaning switch multiple times within a preset time, such as clicking the cleaning switch twice in a row within 2 seconds, to ensure that the preset shutdown instruction sent by the cleaning switch should be unique, and facilitate the water supply equipment to accurately identify the user's operation to avoid misoperation and interference. It should be noted that the specific operation method of the preset shutdown instruction is different from that of the preset opening instruction.

[0092] In this embodiment, the step of obtaining the preset closing instruction made by the user for the cleaning switch includes:

[0093] The user's operation on the cleaning switch and the duration of the operation are obtained; if the duration is a second preset time, it is determined that the user has issued a preset closing instruction to the cleaning switch, wherein the second preset time is greater than or equal to 3 seconds. In this embodiment, the purpose of setting the preset closing instruction is to prevent misoperation and avoid accidentally shutting down the flushing. Specifically, in daily use, the user may accidentally touch the cleaning switch, which may accidentally interrupt the flushing process. The requirement to press the switch continuously for 3 seconds or more greatly reduces the possibility of accidental stopping of the flushing due to accidental touch. By setting a longer period of continuous pressing to trigger the preset closing instruction, the user's true intention to turn on and off the flushing can be clearly distinguished to avoid incorrect responses.

[0094] It should also be noted that the second preset time is greater than or equal to 3 seconds, which can also reduce frequent switching: if the flushing off operation is too easy to trigger, the user may inadvertently frequently turn the flushing on and off, which will bring unnecessary burden to the control system of the water supply equipment and affect the stability and life of the equipment. 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 shutdown instruction and ending the flushing according to the preset shutdown instruction, the flexibility of the water supply equipment during operation and the responsiveness to user needs can be improved. For example, when the user has a water demand during the flushing process, such as for cooking, drinking or other emergency purposes. At this time, the user can issue a preset shutdown instruction by operating the flushing switch. After receiving the instruction, the water supply equipment quickly stops flushing and meets the user's normal water production needs. This ensures that the equipment can be effectively cleaned and maintained when necessary, and can respond in time when the user has an emergency need, without affecting the normal use of the water supply equipment.

[0096] In some embodiments, Figure 5 and Fig.10 As shown, the cleaning method comprises the following steps:

[0097] Step S401: obtaining a cleaning start instruction;

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

[0099] Step S403: ending the flushing when the flushing time reaches a first preset time;

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

[0101] In this embodiment, step S401 is the same as step S101, step S402 is the same as step S102, and step S403 is the same as step S103, which will not be described in detail herein.

[0102] Specifically, in step S404, during the water production process of the water supply equipment, the raw water in the second water tank is filtered by the pre-filter and the reverse osmosis filter and then divided into two paths, one for waste water and the other for pure water. The waste water flows back to the second water tank from the waste water outlet of the reverse osmosis filter through the waste water branch, and the pure water is filtered again by the post-filter and then transported to the first water tank for storage through the water outlet section of the water production main path. Therefore, as the water production continues, the water level in the second water tank gradually decreases and the TDS value of the raw water in the second phase gradually increases, that is, during the water production process, the water level in the second water tank is inversely correlated with the TDS value of the raw water, and 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 of the water level, it means that the quality of the raw water in the second water tank is lower than the lower limit of the water quality required for cleaning the filter element. If the pre-filter element, post-filter element and reverse osmosis filter element continue to be 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 of the water level, the second water tank water change indication information is issued to remind the user to replace the raw water in the second water tank immediately to improve the water quality of the raw water.

[0103] Among them, the water change indication information can be set in a variety of ways. For example, in some embodiments, a water change indicator light is set on the water supply device, and the water change indication information is set to light up the water change indicator light, and use different colors or flashing methods to distinguish different states. For example, a flashing red indicator light indicates that the second water tank needs to be changed. In other embodiments, the water change indication information is set to emit a specific sound signal, such as a beep, voice prompt, etc. For example, the device will issue a voice prompt of "Please change the water in the second water tank." In other embodiments, the water change indication information is set to display the water change indication information 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 display screen, so that the user can more intuitively understand the degree of water shortage in the water tank.

[0104] In this embodiment, the water change indication information is set to flash the "please change water" icon and pause after the countdown for a preset time period. The preset time period can be set to 10 seconds, or 10 minutes, etc.

[0105] In some embodiments, Figure 5 and Fig.11 As shown, the cleaning method comprises the following steps:

[0106] Step S501: obtaining a cleaning start instruction;

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

[0108] Step S503: ending the flushing when the flushing time reaches a first preset time;

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

[0110] In this embodiment, step S501 is the same as step S101, step S502 is the same as step S102, and step S503 is the same as step S103, which will not be described in detail herein.

[0111] In step S504, when the total dissolved solids content value of the raw water in the second water tank exceeds the preset total dissolved solids content, it means that the quality of the raw water in the second water tank is lower than the lower limit of the water quality required for cleaning the filter element. If the pre-filter element, the post-filter element and the reverse osmosis filter element are continued to be cleaned, the cleaning effect will be greatly reduced. Therefore, by monitoring the total dissolved solids content value of the raw water in the second water tank, when the total dissolved solids content value of the raw water exceeds the preset total dissolved solids content, the second water tank water change indication information is issued to remind the user to replace the raw water in the second water tank immediately to improve the water quality of the raw water.

[0112] Among them, the water change indication information can be set in a variety of ways. For example, in some embodiments, a water change indicator light is set on the water supply device, and the water change indication information is set to light up the water change indicator light, and use different colors or flashing methods to distinguish different states. For example, a flashing red indicator light indicates that the second water tank needs to be changed. In other embodiments, the water change indication information is set to emit a specific sound signal, such as a beep, voice prompt, etc. For example, the device will issue a voice prompt of "Please change the water in the second water tank." In other embodiments, the water change indication information is set to display the water change indication information 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 display screen, so that the user can more intuitively understand the degree of water shortage in the second water tank.

[0113] In some embodiments, Figure 5 and Fig.12 As shown, the cleaning method comprises the following steps:

[0114] Step S601: obtaining a cleaning start instruction;

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

[0116] Step S603: ending the flushing when the flushing time reaches a first preset time;

[0117] Step S604: obtaining the first moment of ending flushing;

[0118] Step S605: Accumulating the usage time of the cleaned water supply equipment according to the first moment;

[0119] Step S606: issuing a flushing reminder message according to the usage time being longer than a preset time period.

[0120] In this embodiment, step S601 is the same as step S101, step S602 is the same as step S102, and step S603 is the same as step S103, which will not be repeated here.

[0121] In step S604 to step S605, after the water supply device 1 finishes flushing, it will continue to record the time when it ends, that is, the first time, and accurately obtain the time interval information between the current time and the first time through the built-in timer or the control system connected to the water supply device, that is, the use time of the water supply device after flushing. For example, the water supply device 1 starts timing at the end of the last flushing, and the timer will increase the corresponding value every time a unit of time passes, thereby reflecting the running time of the water supply device after the flushing is completed in real time.

[0122] In step S606, when the usage time is longer than the preset time period, the water supply device will issue a flushing reminder message to remind the user that the water supply device needs to be flushed again. By setting a time period and issuing a flushing reminder message when the usage time is longer than the preset time period, it can ensure that the water supply device is flushed in time after a certain usage time, which helps to keep the inside of the device clean, prevent the accumulation of impurities and dirt, effectively remove impurities and harmful substances in the water, improve the safety of water use, and reduce health risks caused by water quality problems.

[0123] For users, they may forget when the equipment needs to be flushed regularly. The flushing reminder information in this embodiment can serve as a reminder, so that users can maintain the water supply equipment in time and ensure that the water supply equipment is always in good working condition. Users do not need to remember the flushing time by themselves, but only need to perform corresponding operations after receiving the reminder information.

[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 device proposed in the present 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 waste water 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 the electrical signal of the cleaning switch, such as the cleaning start instruction and the preset closing instruction. When the control device 200 receives the cleaning start instruction,

[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 waste water valve 821 to open to the maximum value, and the pre-filter element, the reverse osmosis filter element and the post-filter element are flushed. After the first preset time, the second solenoid valve 37 is closed and the opening of the waste water valve 821 is adjusted to the minimum value to end the flushing.

[0127] When receiving the preset closing instruction, the control device 200 closes the second solenoid valve 37 and adjusts the opening of the waste water valve 821 to the minimum value to end the flushing.

[0128] The water supply equipment proposed in the present invention also includes a liquid level detection component, which is arranged in the second water tank and is 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 water level lower limit, the control device issues a second water tank water change indication information.

[0129] Among them, the liquid level detection component includes but is not limited to a pressure sensor device, an ultrasonic detection device, a capacitive liquid level gauge, etc. For example, in some embodiments, a pressure sensor is installed at the bottom of the second water tank, and the water level height is indirectly determined by detecting the pressure of water on the bottom of the water tank. The pressure of water is proportional to the water level height, 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 liquid level gauge, which includes two electrodes, which are respectively installed at the first water level and the second water level position in the second water tank. When the water level changes, the dielectric constant of water will change the capacitance value between the electrodes. The water level height can be determined by measuring the change in capacitance value.

[0130] In this embodiment, the liquid level detection assembly includes a float, a sensor and a reed switch. The float is usually made of a material with a density less than that of water, such as plastic, foam, etc. The shape of 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 water tank changes, and the change in the position of the float reflects the height of the water level in the water tank.

[0131] The reed switch is installed in the second water tank and arranged in the vertical direction. The reed switch is made of strong materials, such as stainless steel, aluminum alloy, etc., to ensure stability in the second water tank. The reed switch provides guidance and support for the float, so that the float can slide up and down accurately along the reed switch under the action of buoyancy.

[0132] The sensor is fixed on the reed switch. The sensor includes but is not limited to a photoelectric sensor, a Hall sensor and a capacitive sensor. The sensor is used to detect the position of the float and convert it into corresponding water level data. The sensor has the characteristics of high precision, high reliability and fast response to accurately reflect the change of the water level in the second water tank.

[0133] Among them, the sensor is arranged near the bottom of the second water tank, and the float is arranged above the sensor. When the float drops with the water level in the second water tank to collide with the sensor, the water level information detected by the sensor is the preset water level lower limit.

[0134] Furthermore, the control device 200 stops flushing and issues a second water tank water change instruction message according to the TDS data being higher than a preset total dissolved solid content.

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

[0136] In one embodiment, an electronic device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps of a method for cleaning a water supply device when executing the computer program.

[0137] According to an embodiment of the present invention, a computer storage medium is also provided, on which computer readable instructions are stored, and when the computer readable instructions are executed by one or more processors, the one or more processors execute the cleaning method of the water supply equipment in 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 instruction; controlling the water inlet section, the water branch, the wastewater branch and the flushing branch according to the cleaning instruction, and flushing the pre-filter element, the reverse osmosis filter element and the post-filter element; and ending the flushing according to the flushing time reaching a first preset time.

[0138] The logic and / or steps represented in the flowchart or otherwise described herein, for example, may be considered as an ordered list of executable instructions for implementing logical functions, and may be embodied in any computer-readable storage medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, apparatus, or device and execute instructions), or in conjunction with such instruction execution system, apparatus, or device. For purposes of this specification, a "computer-readable storage medium" may be any device that can contain, store, communicate, propagate, or transmit a program for use by an instruction execution system, apparatus, or device, or in conjunction with such instruction execution system, apparatus, or device. More specific examples of computer-readable storage media (a non-exhaustive list) include the following: an electrical connection with one or more wirings (electronic devices), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM, Erasable Programmable Read-Only Memory, or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM, Compact Disc Read-Only Memory). In addition, the computer-readable storage medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering, or processing in another suitable manner as necessary, and then stored in a computer memory.

[0139] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA, Programmable Gate Array), a field programmable gate array (FPGA, Field Programmable Gate Array), etc.

[0140] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method for cleaning a water supply device, characterized in that: The water supply equipment comprises a water production main circuit, a wastewater branch circuit, a flushing branch circuit, a pre-filter element, a post-filter element and a reverse osmosis filter element. The water production main circuit comprises an inlet section, a water branch circuit and a water outlet section which are sequentially connected. The pre-filter element, the reverse osmosis filter element and the post-filter element are sequentially arranged in the water branch circuit. The water inlet of the wastewater branch circuit is connected to the wastewater outlet of the reverse osmosis filter element. The water inlet of the flushing branch circuit is connected to the water outlet of the post-filter element through the water branch circuit. The cleaning method comprises: Get the cleaning start instruction; Controlling the water inlet section, the water branch, the wastewater branch and the flushing branch passage according to the cleaning instruction to flush the pre-filter element, the reverse osmosis filter element and the post-filter element; The flushing is terminated when the flushing time reaches a first preset time.

2. The method for cleaning 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 instruction includes: obtaining a preset start instruction made by a user to the cleaning switch.

3. The method for cleaning water supply equipment according to claim 2, characterized in that: The cleaning method further comprises: Obtaining a preset closing instruction made by a user for the cleaning switch; End the flushing according to the preset wash shut-off instruction.

4. The method for cleaning water supply equipment according to claim 3, characterized in that: The step of obtaining a preset closing instruction made by a user for the cleaning switch includes: Obtaining the user's operation on the cleaning switch and the duration of the operation; According to the duration being a second preset time, it is determined that the user has issued a preset closing instruction for the cleaning switch, wherein the second preset time is greater than or equal to 3 seconds.

5. The method for cleaning water supply equipment according to claim 1, characterized in that: The water supply equipment further comprises a first water tank and a second water tank, the first water tank being connected to the water outlet of the water outlet section, and the second water tank being connected to the water inlet of the water inlet section, the water outlet of the wastewater branch and the water outlet of the flushing branch respectively; The cleaning method further comprises: Acquire the water level of the second water tank, stop flushing and issue a second water tank water change instruction message when the water level is lower than a preset water level lower limit; Alternatively, the total dissolved solids content data of the raw water in the second water tank is obtained, and when the total dissolved solids content data is higher than a preset total dissolved solids content, the flushing is stopped and a second water tank water change instruction message is issued.

6. The method for cleaning water supply equipment according to any one of claims 1 to 5, characterized in that: The cleaning method further comprises: Get the first moment of ending flushing; Accumulating the usage time of the cleaned water supply equipment according to the first moment; A flushing reminder message is issued based on the usage time being longer than a preset time period.

7. A water supply device, characterized in that: The water supply equipment comprises a water production main circuit, a wastewater branch circuit, a flushing branch circuit, a pre-filter element, a post-filter element, a reverse osmosis filter element and a control device, wherein the water production main circuit comprises a water inlet section, a water branch circuit and a water outlet section which are sequentially connected, the pre-filter element, the reverse osmosis filter element and the post-filter element are sequentially arranged in the water branch circuit, the water inlet of the wastewater branch circuit is connected to the wastewater outlet of the reverse osmosis filter element, and the water inlet of the flushing branch circuit is connected to the water outlet of the water branch circuit; The control device is configured to obtain a cleaning start instruction, control the water inlet section, the water branch, the wastewater branch and the flushing branch according to the cleaning instruction, flush the pre-filter element, the reverse osmosis filter element and the post-filter element, and end the flushing when the flushing time reaches a first preset time.

8. The water supply equipment according to claim 7, characterized in that: The water supply equipment also includes a cleaning switch, and the control device is electrically connected to the cleaning switch. The control device is configured to obtain a preset start-up instruction for the cleaning switch issued by the user, and control the water inlet section, the water branch, the wastewater branch and the flushing branch according to the preset start-up instruction to flush the pre-filter element, the reverse osmosis filter element and the post-filter element; the control device is also configured to obtain a preset shut-down instruction for the cleaning switch issued by the user, and end the flushing according to the preset wash shut-down instruction.

9. The water supply equipment according to claim 7, characterized in that: The water supply equipment further comprises a first water tank and a second water tank, the first water tank being connected to the water outlet of the water outlet section, and the second water tank being connected to the water inlet of the water inlet section, the water outlet of the wastewater branch and the water outlet of the flushing branch respectively; Among them, the second water tank is provided with a liquid level detection component, the liquid level detection component is electrically connected to the control device, and the control device is configured to obtain the water level of the second water tank, and stop flushing and issue a second water tank water change indication information according to the water level being lower than a preset water level lower limit.

10. The water supply equipment according to claim 7, 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 arranged at the water inlet section, the first solenoid valve is arranged at the water outlet section, the second solenoid valve is arranged at the flushing circuit, and the wastewater valve is arranged at 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.

11. The water supply equipment according to claim 9, characterized in that: The water supply equipment also includes a first TDS probe and a second TDS probe arranged in the water branch, the first TDS probe is located on the upstream side of the pre-filter element, and the second TDS probe is located on the downstream side of the post-filter element. The control device is electrically connected to the first TDS probe and the second TDS probe respectively, and the control device is configured to obtain TDS data of raw water in the second water tank, stop flushing according to the TDS data being higher than a preset total dissolved solids content, and issue an instruction information for changing water in the second water tank.

12. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method for cleaning the water supply equipment according to any one of claims 1 to 6 are implemented.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the cleaning method of the water supply equipment according to any one of claims 1 to 6 is implemented.

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