water supply system

Abstract

The application provides a water supply system, comprising a water purifier, a pipeline machine, a connecting pipeline and a control valve assembly; the water purifier is provided with a filtering assembly for filtering an external water source and a water supply pipeline in communication with the filtering assembly; the pipeline machine is in communication with the water purifier and is used for receiving purified water from the water purifier; the connecting pipeline is arranged between the water purifier and the pipeline machine, is in communication with the water supply pipeline and is used for conveying the purified water from the water purifier to the pipeline machine; wherein a detection piece is arranged in one of the water purifier or the pipeline machine, and the detection piece is used for detecting the water pressure in the connecting pipeline; the control valve assembly is arranged in the water purifier and the pipeline machine and is configured to be connected with the detection piece. The application arranges the detection piece in one of the water purifier and the pipeline machine, so that the control of the whole water supply system can be realized by controlling the other one of the water purifier and the pipeline machine, thereby ensuring the stability of the cooperative control of the water purifier and the pipeline machine.

Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, and in particular to a water supply system. Background Technology

[0002] Water dispensers, as a common type of drinking water equipment, offer flexible usage scenarios and convenient functionality. In a home setting, users often install water purifiers under the kitchen countertop and connect them to dispensers in the living room, bedroom, or study via water pipes. This breaks down spatial limitations, allowing family members to access drinking water from different rooms without having to go to the kitchen. Water purifiers can purify tap water, and water purifiers and / or dispensers can further heat the purified water, providing users with drinking water at a comfortable temperature.

[0003] Water purifiers and water dispensers typically need to work together. Currently, their coordinated control mainly relies on wireless communication. For example, they can be networked together, connected to the cloud for data exchange, or connected via Bluetooth. However, the stability of wireless communication depends on the wireless signal, and it is easily disrupted or malfunctions due to poor network conditions, long distances, obstructions, electronic interference, etc., making it difficult to guarantee reliable system operation. Utility Model Content

[0004] In view of this, embodiments of this application provide a water supply system to solve the above-mentioned problems existing in the prior art.

[0005] According to a first aspect of the embodiments of this application, a water supply system is provided, comprising: A water purifier, wherein the water purifier is equipped with a filter assembly for filtering external water sources, and a water supply pipeline connected to the filter assembly; A water dispenser, connected to the water purifier, and configured to receive purified water from the water purifier; A connecting pipe is disposed between the water purifier and the water dispenser, communicates with the water supply pipe, and is configured to deliver purified water from the water purifier to the water dispenser. A detection element is provided in one of the water purifiers or pipeline machines, and the detection element is configured to detect the water pressure in the connecting pipeline. A control valve assembly is disposed within the water purifier and the water dispenser, and is configured to connect to the detection element.

[0006] In one embodiment of this application, the pipeline machine is provided with a liquid storage container and a water replenishment pipeline connected to the liquid storage container; the connecting pipeline is configured to connect the water supply pipeline to the water replenishment pipeline; when replenishing water, the control valve assembly is configured to open the passage between the filter assembly, the water supply pipeline, the connecting pipeline, the water replenishment pipeline and the liquid storage container.

[0007] In one embodiment of this application, the detection element includes a first detection element disposed within the water purifier, and the control valve assembly includes a water supply valve disposed on the water supply pipeline; The water supply valve is configured to open to open the passage between the connecting pipe, the water supply pipe and the storage container. The water purifier delivers purified water to the storage container according to the water pressure in the connecting pipe measured by the first detection device. The water supply valve is configured to be closed, and the water purifier stops supplying water based on the water pressure in the connecting pipe measured by the first detection device.

[0008] In one embodiment of this application, the water purifier is provided with a drain pipe connecting the water supply pipe to the wastewater outlet; the water purifier is provided with a liquid storage container and a flushing pipe connecting the liquid storage container to the connecting pipe; during self-cleaning, the control valve assembly is configured to open the passage between the liquid storage container, the flushing pipe, the connecting pipe, the water supply pipe, the drain pipe and the wastewater outlet.

[0009] In one embodiment of this application, the detection element includes a first detection element disposed within the water purifier; during self-cleaning, the control valve assembly within the water dispenser is configured to open the passage between the liquid storage container, the flushing pipe, and the connecting pipe; the control valve assembly within the water purifier is configured to open the passage between the connecting pipe, the water supply pipe, the drain pipe, and the wastewater outlet based on the water pressure in the connecting pipe measured by the first detection element.

[0010] In one embodiment of this application, the detection element includes a second detection element disposed within the water purifier; during self-cleaning, the control valve assembly within the water purifier is configured to open the passage between the connecting pipe, the water supply pipe, the drain pipe, and the wastewater outlet; the control valve assembly within the water purifier is configured to open the passage between the liquid storage container, the flushing pipe, and the connecting pipe based on the water pressure within the connecting pipe measured by the second detection element.

[0011] In one embodiment of this application, the water supply system further includes a detection pipeline disposed between the water purifier and the water dispenser; a third detection element for detecting the water pressure in the detection pipeline is disposed in the water purifier; the third detection element is connected to the control valve assembly; and a pressure relief pipeline communicating with the detection pipeline is disposed in the water dispenser. During self-cleaning, the control valve assembly in the pipeline machine is configured to open the passage between the liquid storage container, the flushing pipeline and the connecting pipeline, and to open the pressure relief pipeline; the control valve assembly in the water purifier is configured to open the passage between the connecting pipeline, the water supply pipeline, the drainage pipeline and the wastewater outlet based on the water pressure in the detection pipeline measured by the third detection element.

[0012] In one embodiment of this application, the detection pipeline is configured to be connected to the connecting pipeline via a pressurization pipeline, and the pressurization pipeline is provided with a pressurization check valve, which is configured to allow the liquid in the pressurization pipeline to flow only in the direction of the detection pipeline.

[0013] In one embodiment of this application, the detection element includes a first detection element disposed within the water purifier; the pipeline machine is provided with a water supply pipeline communicating with the liquid storage container, and the connecting pipeline is configured to connect the water supply pipeline to the water supply pipeline; the pressurization pipeline is configured to communicate with the connecting pipeline through the water supply pipeline; When the liquid storage container is replenished with water, the water replenishment pipeline is closed, and the purified water from the water replenishment pipeline is configured to flow into the detection pipeline through the pressurization pipeline. The water purifier ends the water replenishment operation based on the water pressure in the detection pipeline measured by the third detection element and the water pressure in the connecting pipeline measured by the first detection element.

[0014] In one embodiment of this application, the pipeline machine is provided with a first heating device, which is configured to heat the filtered purified water; the liquid storage container is a heating element disposed in the first heating device; during self-cleaning, the control valve assembly is configured to open the passage between the first heating device, the flushing pipeline, the connecting pipeline, the water supply pipeline, the drainage pipeline and the wastewater outlet.

[0015] In one embodiment of this application, the pipeline machine is provided with a normal temperature water pipeline connecting the connecting pipeline to the first water outlet, and a hot water pipeline connecting the first heating device to the first water outlet. When discharging room temperature water, the control valve assembly is configured to open the passage between the filter assembly, the connecting pipeline, the room temperature water pipeline and the first water outlet. When hot water is dispensed, the control valve assembly is configured to open the passage between the first heating device, the hot water pipe and the first water outlet.

[0016] In one embodiment of this application, the control valve assembly includes a first solenoid valve disposed on the drain pipe; during water replenishment, the first solenoid valve is configured to close the drain pipe so that purified water from the filter assembly can flow through the water supply pipe to the connecting pipe; during self-cleaning, the first solenoid valve is configured to open the passage between the connecting pipe, the water supply pipe, the drain pipe and the wastewater outlet.

[0017] In one embodiment of this application, the water purifier is provided with a waste liquid pipeline, which is configured to connect the filter assembly to the wastewater outlet and to discharge the waste liquid generated during the filtration process; the drain pipeline is configured to connect to the waste liquid pipeline to the wastewater outlet.

[0018] The water supply system provided in this application, by installing a detection device in one of the water purifier and the water dispenser (the first device), allows control of the entire water supply system by controlling the other device (the second device). Specifically, the user can directly control the second device to perform its work. Based on control signals, the second device can control the opening or closing of its internal pipes, thereby affecting the water pressure in the connecting pipes. The detection device can detect the water pressure in the connecting pipes in real time and control the first device to perform its work in coordination with the changes in water pressure. This application eliminates the need for wireless communication signals such as networks or Bluetooth, replacing wireless data transmission with feedback from the physical parameters of the detection device. This completely avoids communication interruptions or command disorder caused by network disconnection, signal blockage, and electromagnetic interference, ensuring the stability of the coordinated control of the water purifier and the water dispenser and preventing the water supply system from going out of control due to wireless signal failure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a water supply system pipeline provided in one embodiment of this application; Figure 2 This is a schematic diagram of the water supply system pipeline provided in Embodiment 1 of this application; Figure 3 This is a schematic diagram of the water supply system pipeline provided in Embodiment 2 of this application; Figure 4 This is a schematic diagram of the water supply system pipeline provided in Embodiment 3 of this application; Figure 5 This is a schematic diagram of the water supply system pipeline provided in Embodiment 4 of this application.

[0020] Figures 1 to 5 The one-to-one correspondence between the component names and the reference numerals in the figures is as follows: 1. Water purifier; 11. First housing; 111. Inlet; 112. Outlet; 113. Wastewater outlet; 114. Ambient temperature water outlet; 115. First detection port; 12. Filter assembly; 121. Wastewater pipeline; 122. Wastewater solenoid valve; 123. Wastewater check valve; 13. Inlet solenoid valve; 14. Booster pump; 15. Pure water pipeline; 151. Pure water valve; 16. Water supply pipeline; 161. Water supply check valve; 171. Wastewater discharge solenoid valve; 172. Wastewater discharge check valve; 2. Water dispenser; 21. Second housing; 211. Inlet; 212. Outlet; 213. Second detection port; 22. Ambient temperature water pipeline; 221. Ambient temperature water valve; 222 1. Flow meter; 23. Pressure relief pipeline; 231. Pressure relief valve; 24. Booster pipeline; 241. Booster check valve; 25. Outlet pipeline; 251. Second solenoid valve; 31. Connecting pipeline; 32. Detection pipeline; 41. First heating device; 42. Second heating device; 43. Hot water pipeline; 430. Hot water pump; 431. Switching valve; 51. First outlet nozzle; 52. Second outlet nozzle; 6. Drainage pipeline; 61. First solenoid valve; 62. Drainage check valve; 7. Flushing pipeline; 71. Flushing check valve; 81. First detection element; 82. Second detection element; 83. Third detection element; 84. Fourth detection element; 9. Water supply pipeline; 91. Water supply valve. Detailed Implementation

[0021] Many specific details are set forth in the following description to provide a full understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this application; therefore, this application is not limited to the specific embodiments disclosed below.

[0022] The terminology used in one or more embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the scope of one or more embodiments of this application. The singular forms “a,” “the,” and “the” used in one or more embodiments of this application and in the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” used in one or more embodiments of this application refers to and includes any or all possible combinations of one or more associated listed items.

[0023] It should be understood that although the terms first, second, etc., may be used to describe various information in one or more embodiments of this application, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first may also be referred to as second without departing from the scope of one or more embodiments of this application, and similarly, second may also be referred to as first. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0024] It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application.

[0025] Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0026] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0027] First, the terms and concepts involved in one or more embodiments of this application will be explained.

[0028] Water purifier: A water treatment device used to purify water. A water purifier is a device that deeply filters and purifies water according to usage requirements. It removes impurities and pollutants from the water through filtration technology, and its core function is to provide pure water that is directly drinkable. In home settings, water purifiers are typically installed under the kitchen sink to provide directly drinkable kitchen water.

[0029] A water dispenser, also known as a piped water purifier, is a device without filtration function specifically designed for heating or cooling purified water. It needs to be connected to a water purifier and can be considered a "companion to the water purifier." In home settings, water dispensers are typically installed in rooms other than the kitchen (such as the living room, study, or bedroom), breaking spatial limitations and allowing family members to access drinking water from different rooms without having to go to the kitchen. Water dispensers usually come in wall-mounted, countertop, or floor-standing models. During installation, water pipes need to be pre-installed to connect the water dispenser and the water purifier, allowing the purifier to supply purified water. When the water dispenser is not used for an extended period, the water in the connecting pipes between the purifier and the dispenser cannot be drained, creating a "dead water zone." In this "dead water zone," bacteria and other microorganisms proliferate, significantly increasing the risk of water contamination and bacterial contamination, seriously affecting drinking water safety and user health, and greatly limiting the user experience and widespread application of water dispensers.

[0030] This application provides a water supply system, which will be described in detail in the following embodiments.

[0031] Example 1 refer to Figure 1 and Figure 2 This embodiment provides a water supply system, including a water purifier 1 and a water dispenser 2. The water purifier 1 is configured to filter external water sources and to supply purified water to the water dispenser 2. Figure 2 As shown, the water purifier 1 includes a first housing 11, inside which a filter assembly 12 for filtering external water sources is installed. An inlet 111 is provided on the first housing 11, through which external water sources (such as tap water) can enter the internal piping of the water purifier 1 and be delivered to the filter assembly 12 for filtration. Specifically, the filter assembly 12 can be a dedicated filter element for the water purifier 1; it is understood that the water filtered by the filter assembly 12 meets the standards for direct drinking.

[0032] In one embodiment of this application, such as Figure 2 As shown, a water inlet solenoid valve 13 and a booster pump 14 are installed on the pipeline between the inlet 111 and the filter assembly 12. The solenoid valve 13 and the booster pump 14 are located upstream of the filter assembly 12. When the water purifier 1 needs water, the solenoid valve 13 and the booster pump 14 can be opened simultaneously. The external water source flows into the water purifier 1 through the inlet 111 under the action of the booster pump 14, and then flows into the filter assembly 12 for filtration.

[0033] In one embodiment of this application, a wastewater outlet 113 is provided on the first housing 11, and a waste liquid pipeline 121 is also provided inside the water purifier 1. The waste liquid pipeline 121 is configured to connect the filter assembly 12 to the wastewater outlet 113 and is configured to discharge the waste liquid generated during the filtration process. A waste liquid solenoid valve 122 is provided on the waste liquid pipeline 121. As those skilled in the art will know, during the filtration process of the filter assembly 12, the filter assembly 12 will generate a certain proportion of waste liquid. The waste liquid pipeline 121 is connected from the wastewater outlet 113 to the outside of the water purifier 1, specifically, it can be directly connected to the sewer to discharge the waste liquid. The waste liquid solenoid valve 122 can be kept in a normally open state, so as long as the filter assembly 12 starts filtering and generates wastewater, the wastewater can be directly discharged through the waste liquid pipeline 121.

[0034] In one embodiment of this application, a room temperature water inlet 114 is provided on the first housing 11, and a pure water pipeline 15 is also provided inside the water purifier 1, which is connected to the filter assembly 12 and the room temperature water inlet 114 respectively. A pure water valve 151 is provided on the pure water pipeline 15. Users can directly draw filtered room temperature purified water from the room temperature water inlet 114 of the water purifier 1. For example, if a user needs to take a certain amount of room temperature purified water while cooking, the user does not need to go to the water dispenser 2 in another room to get water, but can directly take water from the nearby water purifier 1. When water is needed, the pure water valve 151 can open the pure water pipeline 15, thereby guiding the passage between the filter assembly 12 and the room temperature water inlet 114. The room temperature purified water produced by the filter assembly 12 can flow out from the room temperature water inlet 114 under the pumping action of the booster pump 14.

[0035] refer to Figure 1 and Figure 2 The water supply system also includes a connecting pipe 31, which is disposed between the water purifier 1 and the water dispenser 2, and is configured to connect the water outlet 112 of the water purifier 1 to the water inlet 211 of the water dispenser 2. Specifically, the water outlet 112 can be located on the first housing 11 of the water purifier 1, and the water dispenser 2 includes a second housing 21, on which the water inlet 211 can be located. The connecting pipe 31 is located outside the first housing 11 and the second housing 21, and can have a relatively long length, thereby enabling the connection between the water purifier 1 and the water dispenser 2 over a long distance (e.g., from the kitchen to the living room). The connecting pipe 31 enables water circulation between the water purifier 1 and the water dispenser 2, and during normal operation, the water purifier 1 can provide purified water to the water dispenser 2 through the connecting pipe 31.

[0036] In one embodiment of this application, the water purifier 1 is provided with a water supply pipe 16 that communicates with the filter assembly 12. Specifically, the filter assembly 12 and the connecting pipe 31 are connected through the water supply pipe 16. Figure 2 As shown, the water supply pipe 16 can be connected in parallel with the pure water pipe 15 downstream of the filter assembly 12, and the water supply pipe 16 is connected to the water outlet 112 of the water purifier 1, thereby connecting to the connecting pipe 31. The water supply pipe 16 can transport the purified water produced by the filter assembly 12 to the connecting pipe 31, thereby providing purified water to the water dispenser 2. When purified water needs to be supplied to the water dispenser 2, the passage between the filter assembly 12 and the water outlet 112 is opened, and the pure water valve 151 simultaneously closes the pure water pipe 15 to block the passage of purified water to the ambient temperature water outlet 114.

[0037] refer to Figure 1 and Figure 2The water purifier also includes a drain pipe 6, which is configured to connect the water supply pipe 16 to the wastewater outlet 113. Furthermore, the drain pipe 6 is configured to connect to the waste liquid pipe 121, thus connecting to the wastewater outlet 113. The drain pipe 6 can connect the water supply pipe 16 and the waste liquid pipe 121. When the water supply pipe 16 is normally supplying purified water to the water dispenser 2, the drain pipe 6 can remain closed, thereby preventing purified water in the water supply pipe 16 from flowing to the waste liquid pipe 121 and preventing water waste. The drain pipe 6 is only opened during self-cleaning. At this time, the water dispenser 2 can supply water to the water purifier 1 in reverse. Specifically, water from the water dispenser 2 can flow back into the water purifier 1 through the connecting pipe 31, and first flow into the water supply pipe 16, which is directly connected to the outlet 112 of the water purifier 1. Then, it flows from the water supply pipe 16 to the drain pipe 6 and the waste liquid pipe 121, and finally is discharged out through the waste water outlet 113. As mentioned above, the waste water outlet 113 is originally used for the filter assembly 12 to discharge waste liquid. In this embodiment, there is no need to open an additional waste outlet for the drain pipe 6. Instead, it can be connected to the waste liquid pipe 121, so that it shares the waste water outlet 113 with the filter assembly 12. The self-cleaning liquid from the connecting pipe 31 can be discharged from the waste water outlet 113 of the water purifier 1.

[0038] refer to Figure 1 and Figure 2 As mentioned above, the water dispenser 2 is connected to the water purifier 1 via a connecting pipe 31 and is configured to receive purified water from the water purifier 1. The water dispenser 2 contains a liquid storage container and a flushing pipe 7 connected to the liquid storage container. The flushing pipe 7 is connected to the water inlet 211 of the water dispenser 2, thereby connecting to the connecting pipe 31. The flushing pipe 7 can reverse the flow of liquid from the liquid storage container to the water inlet 211 of the water dispenser 2, thus enabling the water dispenser 2 to pump water to the water purifier 1 in reverse, and in the process, flushing and cleaning the connecting pipe 31. In a specific embodiment of this application, a first heating device 41 is provided inside the water dispenser 2. The first heating device 41 is configured to heat the filtered purified water and is configured to deliver hot water to the first water outlet 51 via a hot water pipe 43. The liquid storage container can be a heating element installed in the first heating device 41. Correspondingly, the flushing pipe 7 can be configured to connect to the hot water pipe 43. The first water outlet 51 is installed on the water dispenser 2. Specifically, the first water outlet 51 can be a water tap on the water dispenser 2.

[0039] The water supply system also includes a control valve assembly. When the water purifier 1 supplies water to the water dispenser 2, the control valve assembly is configured to open the passage between the filter assembly 12, the water supply line 16, and the connecting line 31. During self-cleaning, the control valve assembly is configured to open the passage between the liquid storage container, the flushing line 7, the connecting line 31, the water supply line 16, the drain line 6, and the wastewater outlet 113. Further, in an embodiment where the liquid storage container is a heating element, when the water dispenser 2 dispenses hot water, the control valve assembly is configured to open the passage between the first heating device 41, the hot water line 43, and the first water outlet 51. During self-cleaning, the control valve assembly is configured to open the passage between the first heating device 41, the flushing line 7, the connecting line 31, and the drain line 6.

[0040] Under the control of the control valve assembly, two switchable hot water flow paths can be formed in the pipeline machine 2: flow path ① "first heating device 41 → hot water pipeline 43 → first water outlet 51"; flow path ② "first heating device 41 → flushing pipeline 7 → connecting pipeline 31", wherein the hot water in the flushing pipeline 7 can flow back to the connecting pipeline 31 through the inlet 211. Under the control of the control valve assembly, two switchable water flow paths are formed in the water purifier 1: flow path ③ "filter assembly 12 → water supply pipe 16 → connecting pipe 31"; flow path ④ "connecting pipe 31 → water supply pipe 16 → drain pipe 6 → waste liquid pipe 121 → wastewater outlet 113". It can be understood that during self-cleaning, flow path ② in the water dispenser 2 and flow path ④ in the water purifier 1 need to be opened at the same time, so that the liquid in the storage container (such as the heating tank) can backwash the connecting pipe 31 and be discharged from the wastewater outlet 113 through the water supply pipe 16, drain pipe 6, and waste liquid pipe 121.

[0041] This application provides a water supply system capable of self-cleaning the connecting pipe 31 between a water purifier 1 and a water dispenser 2. When the water purifier 1 is normally supplying water to the water dispenser 2, the purified water filtered by the filter assembly 12 flows through the supply pipe 16 into the connecting pipe 31, and then into the water dispenser 2. Users can then draw water from the faucet (e.g., the first water outlet 51) of the water dispenser 2, thus meeting their daily water needs. When self-cleaning is required, the liquid in the storage container inside the water dispenser 2 flows through the flushing pipe 7 into the connecting pipe 31, and then flows back into the water purifier 1. This causes the water remaining in the connecting pipe 31 to flow through the supply pipe 16, the drain pipe 6, and the waste liquid pipe 121, and be discharged from the wastewater outlet 113, thus achieving a self-cleaning effect and improving the safety of the user's water supply.

[0042] In a specific embodiment where the storage container is the heating element of the first heating device 41, by reusing the first heating device 41, the user's daily hot water drinking needs are met while periodic high-temperature hot water flushing is achieved. When hot water is needed, the hot water in the first heating device 41 can flow out from the first water outlet 51 through the hot water pipe 43; when self-cleaning is required, the hot water in the first heating device 41 can flow into the connecting pipe 31 through the flushing pipe 7, and drive the water stored in the connecting pipe 31 to be discharged from the drain pipe 6. At the same time, the high temperature of the hot water can play a bactericidal role, thereby preventing bacteria from growing due to long-term water storage in the connecting pipe 31 and improving the user's water safety.

[0043] The water supply system designed in this application requires no additional heating equipment. While reducing costs, the high-temperature hot water effectively prevents water deterioration and bacterial contamination at the source, ensuring drinking water safety. Furthermore, the control valve assembly can intelligently switch between normal hot water output and self-cleaning modes (i.e., switching to flow path ① during normal hot water output and flow path ② during self-cleaning mode), without affecting the basic functions of the equipment. This improves ease of use, enhances the stability of the water supply system, extends the equipment's lifespan, and provides users with a healthier and smarter drinking water experience. During self-cleaning, water flows from the water dispenser through connecting pipe 31, then from the drain pipe 6 of the water purifier 1 into the waste liquid pipe 121, and flows out from the wastewater outlet 113 of the water purifier 1. This not only cleans the connecting pipe 31 but also utilizes the existing pipes of the water purifier 1 for drainage, eliminating the need for separate drainage pipes in the water dispenser 2 and living room, thus reducing equipment and user costs.

[0044] The following will be based on Figure 2 Taking the water supply system shown as an example, the specific structure and working principle of the water supply system provided in this embodiment will be described in detail. In this embodiment, signal transmission is required between the water purifier 1 and the water dispenser 2. This signal transmission scheme can be Bluetooth, WIFI, signal line, etc. The user can issue control commands through the control panel on either side of the water purifier 1 or the water dispenser 2, or through a mobile phone or remote control. The control commands include at least a self-cleaning command. The two devices can simultaneously obtain the control commands, thereby working together.

[0045] like Figure 2 As shown, during self-cleaning, the passage between the first heating device 41, the flushing pipe 7, the connecting pipe 31 and the drain pipe 6 is opened, and the hot water in the first heating device 41 can flow in the flushing pipe 7 and flow back to the connecting pipe 31 through the inlet 211, so as to drive the water stored in the connecting pipe 31 to flow back into the water purifier 1 through the outlet 112, and then be discharged from the wastewater outlet 113 through the water supply pipe 16, the drain pipe 6 and the waste liquid pipe 121 in the water purifier 1.

[0046] In one embodiment of this application, the purified water supplied by the water purifier 1 to the water dispenser 2 can flow into the first heating device 41 for heating to generate hot water. The first heating device 41 may include a heating tank (i.e., a liquid storage container) with a certain capacity. The purified water entering the heating tank can be stored in it after heating and can be kept warm for a long time, thereby realizing the on-demand use of hot water. Users do not need to wait a long time to get hot water, improving the user experience. A hot water pump 430 is provided on the hot water pipeline 43. The hot water pump 430 can pump the hot water from the first heating device 41. For example, when dispensing hot water, the hot water pump 430 can pump the hot water along the flow path ① (first heating device 41 → hot water pipeline 43 → first water outlet 51); when performing self-cleaning, the hot water pump 430 can pump the hot water along the flow path ② (first heating device 41 → flushing pipeline 7 → connecting pipeline 31).

[0047] In one embodiment of this application, the water purifier 2 is provided with a water replenishment pipe 9, which is configured to connect the connecting pipe 31 to the storage container. During water replenishment, the control valve assembly is configured to guide the flow between the filter assembly 12, the connecting pipe 31, the water replenishment pipe 9, and the storage container. The pipe between the filter assembly 12 and the connecting pipe 31 can be the water supply pipe 16 described above. Specifically, in an embodiment where the storage container is a heating element, if the hot water stored in the first heating device 41 is below a threshold, the water purifier 1 needs to replenish water to the first heating device 41 through the connecting pipe 31 and the water replenishment pipe 9. In this embodiment, the self-cleaning task automatically ends when the hot water stored in the first heating device 41 is exhausted. Therefore, after the self-cleaning process ends, the water replenishment process will automatically begin. During water replenishment, the control valve assembly is configured to guide the flow between the filter assembly 12, the connecting pipe 31, the water replenishment pipe 9, and the first heating device 41.

[0048] Furthermore, the control valve assembly includes a water supply valve 91 installed on the water supply pipe 9. During water replenishment, the water supply valve 91 opens, thereby opening the passage between the connecting pipe 31, the water supply pipe 9, and the first heating device 41. Pure water from the filter assembly 12 can flow into the first heating device 41 through the water supply pipe 16, the connecting pipe 31, and the water supply pipe 9. The first heating device 41 may be equipped with a water level sensor. When the first heating device 41 is filled with water, the water level sensor can send a full water signal. Based on the full water signal, the water supply valve 91 is controlled to close, thereby ending the current water replenishment process.

[0049] In one embodiment of this application, a first detection element 81 for detecting water pressure in the connecting pipe 31 is provided inside the water purifier 1. Specifically, the first detection element 81 can be a pressure switch installed on the water supply pipe 16. The first detection element 81 can send a signal to control the water purifier 1 according to the water pressure in the connecting pipe 31. When replenishing water, the water replenishment valve 91 is configured to open the water replenishment pipe 9, and the water pressure in the connecting pipe 31 drops to a first low-pressure threshold. Based on the first low-pressure trigger signal of the first detection element 81, the water purifier 1 is configured to deliver purified water to the liquid storage container (such as the heating element of the first heating device 41). When replenishing water is completed, the water replenishment valve 91 is configured to close the water replenishment pipe 9, and the water pressure in the connecting pipe 31 rises to a first high-pressure threshold. Based on the first high-pressure trigger signal of the first detection element 81, the water purifier 1 ends the water replenishment operation.

[0050] Specifically, the connecting pipe 31 is initially under high pressure due to the presence of water. When the water supply valve 91 is opened, the liquid in the connecting pipe 31 automatically flows towards the low-pressure water supply pipe 9, thereby reducing the pressure in the connecting pipe 31. When the water pressure in the connecting pipe 31 drops to the first low-pressure threshold, the first detection element 81 sends a first low-pressure trigger signal. Based on this signal, the water purifier 1 starts operating, and the inlet solenoid valve 13 and the booster pump 14 can be opened, thereby pumping external water to the filter assembly 12 and pumping the filtered water into the first heating device 41 through the water supply pipe 16, the connecting pipe 31, and the water supply pipe 9. When the water supply is complete, the water supply valve 91 closes based on the full water signal. At this time, the water purifier 1 continues to pump water to the water dispenser 2, thus increasing the water pressure in the connecting pipe 31. When the water pressure in the connecting pipe 31 rises to the first high pressure threshold, the first detection element 81 sends a first high pressure trigger signal, and the water purifier 1 stops working based on the first high pressure trigger signal, and the water inlet solenoid valve 13 and the booster pump 14 are closed.

[0051] In one embodiment of this application, the flushing pipe 7 is configured to communicate with the connecting pipe 31. As mentioned above, the water supply pipe 9 is also connected to the connecting pipe 31, that is, the flushing pipe 7 and the water supply pipe 9 are arranged in parallel. Specifically, the flushing pipe 7 is configured to communicate with the water supply pipe 9, so that the flushing pipe 7 is connected to the connecting pipe 31 through the water supply pipe 9. During the water supply process, clean water from the connecting pipe 31 enters the water supply pipe 9, and some of the liquid in the water supply pipe 9 may flow into the flushing pipe 7, causing water waste. To address this, this application provides a flushing check valve 71 on the flushing pipe 7. The flushing check valve 71 is configured to ensure that the liquid in the flushing pipe 7 flows only from the first heating device 41 towards the connecting pipe 31. The clean water from the connecting pipe 31 cannot flow towards the hot water pipe 43 in the flushing pipe 7 due to the blocking effect of the flushing check valve 71, thereby improving the order and controllability of the water supply system and reducing water waste.

[0052] In one embodiment of this application, the first water outlet 51 of the water dispenser 2 can be used not only to dispense hot water but also to dispense room temperature water. Alternatively, it can mix hot water and room temperature water in an appropriate proportion before dispensing, thereby providing water at a user-specified temperature and enhancing the functionality of the water dispenser 2. Specifically, the water dispenser 2 is also equipped with a room temperature water pipeline 22, which is configured to connect the connecting pipeline 31 to the first water outlet 51. When dispensing room temperature water, the control valve assembly is configured to guide the flow through the filter assembly 12, the connecting pipeline 31, the room temperature water pipeline 22, and the first water outlet 51. The room temperature water pipeline 22 can be connected in parallel with the water supply pipeline 9 and the flushing pipeline 7. The control valve assembly can include a room temperature water valve 221 installed on the room temperature water pipeline 22. In addition, a flow meter 222 can also be installed on the room temperature water pipeline 22. When room temperature water is dispensed, the room temperature water valve 221 opens, thereby opening the passage between the connecting pipe 31, the room temperature water pipe 22, and the first water outlet 51. Pure water from the filter assembly 12 can flow to the first water outlet 51 through the water supply pipe 16, the connecting pipe 31, and the room temperature water pipe 22. The flow meter 222 on the room temperature water pipe 22 can be used to detect the flow rate in the room temperature water pipe 22, which facilitates precise control of the water flow rate from the first water outlet 51 and improves the user experience.

[0053] In one embodiment of this application, the control valve assembly includes a switching valve 431 disposed on the hot water pipe 43. The switching valve 431 can have two states: specifically, when hot water is dispensed, the switching valve 431 is configured to open the passage between the first heating device 41, the hot water pipe 43, and the first water outlet 51; during self-cleaning, the switching valve 431 is configured to open the passage between the first heating device 41, the flushing pipe 7, and the connecting pipe 31. The switching valve 431 can have one input terminal and two switchable output terminals. Both the input terminal and one of the output terminals are connected to the hot water pipe 43, and the flushing pipe 7 can be connected to the other output terminal of the switching valve 431. The switching valve 431 can be switched to connect the hot water pipe 43. At this time, the hot water pipe 43 and the flushing pipe 7 are not connected, and the hot water can flow directly through the hot water pipe 43 to the first water outlet 51. The switching valve 431 can also be switched to connect the hot water pipe 43 and the flushing pipe 7. The hot water can flow through the hot water pipe 43 to the flushing pipe 7, and thereby perform high-temperature flushing on the connecting pipe 31.

[0054] This application achieves self-cleaning control within the pipeline machine 2 by setting a switching valve 431. Under normal water output conditions, the switching valve 431 keeps the flushing pipeline 7 and the hot water pipeline 43 disconnected. Only during self-cleaning can the switching valve 431 connect the flushing pipeline 7 and the hot water pipeline 43, thereby enabling the use of hot water from the first heating device 41 to flush the connecting pipeline 31.

[0055] In one embodiment of this application, the control valve assembly includes a first solenoid valve 61 disposed on the drain pipe 6. When replenishing water, the first solenoid valve 61 is configured to open the passage between the filter assembly 12, the water supply pipe 16 and the connecting pipe 31. When performing self-cleaning, the first solenoid valve 61 is configured to open the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6 and the wastewater outlet 113.

[0056] This application achieves self-cleaning control within the water purifier 1 by setting a first solenoid valve 61. Specifically, in the non-self-cleaning state, the first solenoid valve 61 can remain closed, keeping the drain pipe 6 and the water supply pipe 16 disconnected. The water purifier 1 can normally replenish water to the water dispenser 2 through the water supply pipe 16, and the liquid in the water supply pipe 16 will not flow into the drain pipe 6, thereby avoiding water waste. Only in the self-cleaning state can the first solenoid valve 61 open the drain pipe 6, thereby opening the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6, the waste liquid pipe 121, and the wastewater outlet 113. This allows hot water from the water dispenser 2 to flush the connecting pipe 31, flow into the drain pipe 6 through the water supply pipe 16, and then flow into the waste liquid pipe 121 through the drain pipe 6, and finally be discharged through the wastewater outlet 113.

[0057] In one embodiment of this application, a water supply check valve 161 is provided on the water supply pipe 16. The water supply check valve 161 is configured to ensure that the liquid in the water supply pipe 16 flows only from the filter assembly 12 towards the connecting pipe 31. The connection point between the drain pipe 6 and the water supply pipe 16 is located downstream of the water supply check valve 161. As mentioned above, the drain pipe 6 can be connected to the connecting pipe 31 through the water supply pipe 16, and the water supply check valve 161 should be located upstream of the connection point between the water supply pipe 16 and the drain pipe 6. Thus, during the self-cleaning process, the hot water from the connecting pipe 31 cannot flow towards the filter assembly 12 in the water supply pipe 16 due to the obstruction of the water supply check valve 161, thereby preventing the backflow of self-cleaning hot water from causing malfunction of the filter assembly 12.

[0058] In one embodiment of this application, since both the filter assembly 12 and the drain pipe 6 are connected to the wastewater outlet 113, a wastewater one-way valve 123 is provided on the wastewater pipe 121 to prevent liquid in the drain pipe 6 from flowing to the filter assembly 12 through the wastewater pipe 121. The wastewater one-way valve 123 is configured to ensure that liquid in the wastewater pipe 121 flows only from the filter assembly 12 to the wastewater outlet 113. Simultaneously, the wastewater one-way valve 123 can also effectively prevent gas and liquid in the sewer from flowing back to the filter assembly 12 through the wastewater outlet 113.

[0059] Furthermore, a one-way valve 62 is installed on the drainage pipe 6. The one-way valve 62 is configured to ensure that liquid in the drainage pipe 6 flows only towards the wastewater outlet 113. The one-way valve 62 prevents gas and liquid in the sewer, and / or waste liquid in the waste liquid pipe 121, from flowing back into the drainage pipe 6 through the wastewater outlet 113 and into the water supply pipe 16 when the first solenoid valve 61 is opened, thus preventing contamination of the purified water. This improves the order and controllability of the water circuit within the water supply system, ensuring that purified water is not contaminated by waste liquid from other pipes.

[0060] Example 2 This embodiment also provides a water supply system, which differs from Embodiment 1 only in that the water purifier 1 and the water dispenser 2 do not work together through signal transmission methods such as Bluetooth or WIFI. The user only issues control commands to the water purifier 1. For example, a control panel can be set on the water purifier 1, and the user can issue self-cleaning commands through the control panel. At this time, the water dispenser 2 cannot obtain control command signals in real time.

[0061] refer to Figure 3 The structure of the water supply system in this embodiment is basically the same as that in Embodiment 1, except that a second detection element 82 for detecting the water pressure in the connecting pipe 31 is also provided in the water dispenser 2. Specifically, the second detection element 82 can be a pressure switch installed on the water supply pipe 9. The second detection element 82 can send a signal to control the water dispenser 2 according to the water pressure in the connecting pipe 31. During self-cleaning, the control valve assembly in the water purifier 1 is configured to open the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6 and the wastewater outlet 113. The water pressure in the connecting pipe 31 drops to the second low pressure threshold. Based on the second low pressure trigger signal of the second detection element 82, the control valve assembly in the water dispenser 2 is configured to open the passage between the liquid storage container (such as the hot tank of the first heating device 41), the flushing pipe 7 and the connecting pipe 31.

[0062] Specifically, when the water purifier 1 receives a self-cleaning command, it can control the first solenoid valve 61 to open, thereby opening the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6, and the wastewater outlet 113. The connecting pipe 31 is originally under high pressure; when the first solenoid valve 61 opens, the liquid in the connecting pipe 31 automatically flows towards the low-pressure water supply pipe 16, the drain pipe 6, and the wastewater outlet 113, thus reducing the pressure within the connecting pipe 31. When the water pressure in the connecting pipe 31 drops to a second low-pressure threshold, the second detection element 82 sends a second low-pressure trigger signal, and the water dispenser 2 can obtain the self-cleaning command based on this signal. The switching valve 431 inside the pipeline machine 2 can open the passage between the first heating device 41, the flushing pipe 7 and the connecting pipe 31, thereby allowing the hot water in the first heating device 41 to flow into the connecting pipe 31 through the flushing pipe 7, and causing the water stored in the connecting pipe 31 to pass through the water supply pipe 16, the drainage pipe 6 and the waste liquid pipe 121, and be discharged from the wastewater outlet 113. At the same time, the high temperature of the hot water can play a bactericidal role, thereby preventing bacteria from growing due to long-term water storage in the connecting pipe 31 and improving the user's water safety.

[0063] Example 3 This embodiment also provides a water supply system, which differs from Embodiment 1 only in that the water purifier 1 and the water dispenser 2 do not work together through signal transmission methods such as Bluetooth or WIFI. The user only issues control commands to the water dispenser 2. For example, a control panel can be set on the water dispenser 2, and the user can issue self-cleaning commands through the control panel. At this time, the water purifier 1 cannot obtain control command signals in real time.

[0064] refer to Figure 4 The water supply system provided in this embodiment also includes a detection pipeline 32 disposed between the water purifier 1 and the water dispenser 2. Specifically, a first detection port 115 is provided on the first housing 11 of the water purifier 1, and a second detection port 213 is provided on the second housing 21 of the water dispenser 2. The two ends of the detection pipeline 32 are respectively connected to the first detection port 115 and the second detection port 213. A third detection element 83 for detecting the water pressure in the detection pipeline 32 is provided inside the water purifier 1. Specifically, the third detection element 83 can be a pressure switch, and the third detection element 83 can send a signal to control the water purifier 1 according to the water pressure in the detection pipeline 32.

[0065] The water dispenser 2 is equipped with a pressure relief pipe 23 connected to the detection pipe 32. The pressure relief pipe 23 can connect the second detection port 213 to the liquid storage container (such as the heating element of the first heating device 41). A pressure relief valve 231 is provided on the pressure relief pipe 23. When the pressure relief valve 231 is open, the passage between the detection pipe 32, the pressure relief pipe 23 and the liquid storage container (such as the heating element of the first heating device 41) is opened. During self-cleaning, the control valve assembly in the water dispenser 2 is configured to open the passage between the liquid storage container (such as the heating element of the first heating device 41), the flushing pipe 7 and the connecting pipe 31, and the pressure relief pipe 23. When the water pressure in the detection pipe 32 drops to the third low-pressure threshold, based on the third low-pressure trigger signal of the third detection element 83, the control valve assembly in the water purifier 1 is configured to open the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6 and the wastewater outlet 113.

[0066] Specifically, upon receiving a self-cleaning command, the water purifier 2 controls the switching valve 431 to open the passage between the first heating device 41, the flushing pipe 7, and the connecting pipe 31, while simultaneously opening the pressure relief valve 231. The detection pipe 32, which was originally under high pressure, automatically flows towards the low-pressure first heating device 41 when the pressure relief valve 231 opens, causing a pressure drop within the detection pipe 32. When the water pressure in the detection pipe 32 decreases to the third low-pressure threshold, the third detection element 83 sends a third low-pressure trigger signal, allowing the water purifier 1 to obtain the self-cleaning command based on this signal. The first solenoid valve 61 inside the water purifier 1 can open the drain pipe 6, thereby opening the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6, the waste liquid pipe 121 and the wastewater outlet 113. This allows the hot water in the first heating device 41 to flow into the connecting pipe 31 through the flushing pipe 7, and to drive the water stored in the connecting pipe 31 through the water supply pipe 16, the drain pipe 6, and the waste liquid pipe 121, and out of the wastewater outlet 113. At the same time, the high temperature of the hot water can kill bacteria, thereby preventing bacteria from growing due to long-term water storage in the connecting pipe 31 and improving the user's water safety.

[0067] In one embodiment of this application, the detection pipeline 32 is configured to be connected to the connecting pipeline 31 via a pressurization pipeline 24. A pressurization check valve 241 is provided on the pressurization pipeline 24, and the pressurization check valve 241 is configured to ensure that the liquid in the pressurization pipeline 24 flows only towards the detection pipeline 32. Specifically, the detection pipeline 32 triggers the third detection element 83 by draining water through the pressure relief pipeline 23, thereby transmitting a self-cleaning command to the water purifier 1. In order to continue transmitting the next self-cleaning command, the pressure in the detection pipeline 32 needs to be restored. The pressurization pipeline 24 can deliver purified water into the detection pipeline 32, thereby restoring the detection pipeline 32 to a full water state and increasing the water pressure inside the detection pipeline 32.

[0068] As mentioned above, the water purifier 1 is also equipped with a first detection element 81 for detecting the water pressure in the connecting pipe 31. During water replenishment, the water replenishment valve 91 is configured to open the water replenishment pipe 9, and the water pressure in the connecting pipe 31 drops to a first low-pressure threshold. Based on the first low-pressure trigger signal of the first detection element 81, the water purifier 1 is configured to deliver purified water to the liquid storage container (such as the heating element of the first heating device 41). When water replenishment is completed, the water replenishment valve 91 is configured to close the water replenishment pipe 9, and the purified water from the water replenishment pipe 9 is configured to flow into the detection pipe 32 via the pressurization pipe 24. The water pressure in the detection pipe 32 rises to a third high-pressure threshold, and the water pressure in the connecting pipe 31 rises to a first high-pressure threshold. Based on the first high-pressure trigger signal of the first detection element 81 and the third high-pressure trigger signal of the third detection element 83, the water purifier 1 ends the water replenishment operation.

[0069] Specifically, upon completion of water replenishment, the water replenishment valve 91 closes based on a full water signal. At this time, the water purifier 1 continues to pump water to the dispenser 2. The purified water entering the dispenser 2 via the connecting pipe 3 flows into the detection pipe 32 through the booster pipe 24, thus increasing the water pressure in the detection pipe 32. When the water pressure in the detection pipe 32 reaches the third high-pressure threshold, the third detection element 83 issues a third high-pressure trigger signal. After the detection pipe 32 also reaches full water, the dispenser 2 can no longer replenish water, thus increasing the water pressure in the connecting pipe 31. When the water pressure in the connecting pipe 31 reaches the first high-pressure threshold, the first detection element 81 issues a first high-pressure trigger signal. The water purifier 1 stops operating based on the first and third high-pressure trigger signals. At this time, the liquid storage container (such as the heating element of the first heating device 41), the connecting pipe 31, and the detection pipe 32 are all fully replenished with water.

[0070] In one embodiment of this application, a fourth detection element 84 for detecting the water pressure in the detection pipeline 32 is provided inside the water dispenser 2. Specifically, the fourth detection element 84 can be a pressure switch installed on the booster pipeline 24. The fourth detection element 84 can send a signal to control the water dispenser 2 based on the water pressure in the detection pipeline 32. During water replenishment, when the water pressure in the detection pipeline 32 rises to a fourth high-pressure threshold, the water dispenser 2 ends the water replenishment operation based on the fourth high-pressure trigger signal from the fourth detection element 84. Specifically, when water replenishment is completed, the water pressure in the detection pipeline 32 may rise to the fourth high-pressure threshold, and the fourth detection element 84 sends a fourth high-pressure trigger signal, thereby controlling the water dispenser 2 to end the water replenishment operation, after which the user can use the water dispenser 2 normally to obtain water.

[0071] In one embodiment of this application, a waste discharge pipe is provided in the water purifier 1, connecting the first detection port 115 to the wastewater outlet 113. A waste discharge solenoid valve 171 and a waste discharge check valve 172 are provided on the waste discharge pipe. The waste discharge check valve 172 is configured to ensure that liquid in the waste discharge pipe flows only from the first detection port 115 to the wastewater outlet 113. The waste discharge solenoid valve 171 can remain normally closed. Only when it is necessary to discharge liquid from the detection pipe 32 (e.g., when wiring maintenance is required) is the waste discharge solenoid valve 171 opened to allow the passage between the first detection port 115 and the wastewater outlet 113 to be discharged through the wastewater outlet 113.

[0072] Example 4 This embodiment also provides a water supply system, which differs from embodiments one to three in that: the liquid storage container (such as the heating element of the first heating device 41) is installed inside the water purifier 1, the first water outlet 51 is installed on the water purifier 1, and the drain pipe 6 is installed inside the water dispenser 2. (See reference) Figure 5 During self-cleaning, the passage between the first heating device 41, the flushing pipe 7, the connecting pipe 31 and the drain pipe 6 is opened, and the hot water in the first heating device 41 can flow in the flushing pipe 7 and enter the connecting pipe 31 through the outlet 112, so as to drive the water stored in the connecting pipe 31 into the water dispenser 2 through the inlet 211 and be discharged through the drain pipe 6 in the water dispenser 2.

[0073] In this embodiment, the first heating device 41 is installed inside the water purifier 1, thus making the internal piping layout of the water purifier 1 different from that in Embodiment 1. Specifically, the water purifier 1 is provided with a water supply pipe 9, and a water supply valve 91 is installed on the water supply pipe 9. The water supply pipe 9 is configured to connect the filter assembly 12 to the first heating device 41. When the hot water stored in the first heating device 41 is lower than the threshold, the inlet solenoid valve 13, the booster pump 14, and the water supply valve 91 can be opened, thereby opening the passage between the inlet liquid inlet 111 and the first heating device 41. The purified water produced after filtration by the filter assembly 12 can flow into the first heating device 41 through the water supply pipe 9.

[0074] In one embodiment of this application, the flushing pipe 7 is configured to connect to the water supply pipe 16. Specifically, the water supply pipe 16 connects the filter assembly 12 to the connecting pipe 31, thereby enabling the purified water generated by the filter assembly 12 to be delivered to the connecting pipe 31, thus providing purified water to the water dispenser 2. Simultaneously, a portion of the water supply pipe 16 near the outlet 112 is also used to deliver hot water from the flushing pipe 7, thereby enabling the hot water generated by the first heating device 41 to be delivered to the connecting pipe 31, thereby achieving high-temperature flushing of the connecting pipe 31.

[0075] A water supply check valve 161 is installed on the water supply line 16. The water supply check valve 161 is configured to ensure that the liquid in the water supply line 16 flows only from the filter assembly 12 towards the connecting line 31. The water supply check valve 161 should be located upstream of the connection point between the water supply line 16 and the flushing line 7. Thus, during the self-cleaning process, the hot water from the flushing line 7 cannot flow towards the filter assembly 12 in the water supply line 16 due to the obstruction of the water supply check valve 161, thereby preventing the backflow of self-cleaning hot water and causing malfunction of the filter assembly 12.

[0076] Similar to the aforementioned embodiments, the control valve assembly includes a switching valve 431 disposed on the hot water pipe 43. When hot water is dispensed, the switching valve 431 is configured to connect the first heating device 41, the hot water pipe 43, and the first water outlet 51. During self-cleaning, the switching valve 431 is configured to connect the first heating device 41, the flushing pipe 7, and the connecting pipe 31. This application achieves self-cleaning control within the water purifier 1 by configuring the switching valve 431. Under normal water dispensing conditions, the switching valve 431 keeps the flushing pipe 7 and the hot water pipe 43 disconnected. Only during self-cleaning does the switching valve 431 connect the flushing pipe 7 and the hot water pipe 43, thereby enabling the flushing of the connecting pipe 31 using the hot water from the first heating device 41.

[0077] In one embodiment of this application, since the flushing pipe 7 is connected to the water supply pipe 16, some of the purified water from the water supply pipe 16 may flow into the flushing pipe 7 during the process of supplying purified water to the water dispenser 2, resulting in water waste. Therefore, a flushing check valve 71 is provided on the flushing pipe 7. The flushing check valve 71 is configured to ensure that the liquid in the flushing pipe 7 flows only from the first heating device 41 towards the connecting pipe 31. The purified water from the water supply pipe 16 cannot flow towards the hot water pipe 43 in the flushing pipe 7 due to the obstruction of the flushing check valve 71, thereby improving the order and controllability of the water flow within the water supply system and reducing water waste.

[0078] In one embodiment of this application, a water dispenser 2 is provided with a water outlet pipe 25, and a second water outlet 52 is provided on the water dispenser 2. The second water outlet 52 can be a faucet on the water dispenser 2. The water outlet pipe 25 is configured to connect the connecting pipe 31 to the second water outlet 52, and the drain pipe 6 is configured to connect to the connecting pipe 31, that is, the drain pipe 6 and the water outlet pipe 25 are arranged in parallel. The control valve assembly includes a second solenoid valve 251 disposed on the water outlet pipe 25. When water is discharged from the second water outlet 52, the second solenoid valve 251 is configured to open the water outlet pipe 25; during self-cleaning, the second solenoid valve 251 is configured to close the water outlet pipe 25 to open the passage between the connecting pipe 31 and the drain pipe 6. This application achieves self-cleaning control within the water dispenser 2 by incorporating a second solenoid valve 251. Specifically, in non-self-cleaning mode, the second solenoid valve 251 can open, allowing purified water from the connecting pipe 31 to flow from the outlet pipe 25 to the second outlet nozzle 52, thus fulfilling the basic water dispensing function of the water dispenser 2. Only in self-cleaning mode does the second solenoid valve 251 close, blocking the outlet pipe 25 and opening the passage between the connecting pipe 31 and the drain pipe 6, allowing hot water from the water purifier 1 to continue flowing to the drain pipe 6 for discharge after flushing the connecting pipe 31.

[0079] In this embodiment, the first heating device 41 installed in the water purifier 1 can be used to directly dispense hot water from the water purifier 1, or to flush the connecting pipe 31. After flushing the connecting pipe 31, the liquid flowing into the water dispenser 2 will be discharged through the drain pipe 6 and will not flow to the second water outlet 52. In one embodiment of this application, the water dispenser 2 has the function of dispensing hot water. A second heating device 42 may be installed in the water dispenser 2. The second heating device 42 is located on the water outlet pipe 25 downstream of the second solenoid valve 251. The second solenoid valve 251 is configured to open the passage between the connecting pipe 31, the second heating device 42 and the second water outlet 52. The second heating device 42 is configured to heat the room temperature water from the connecting pipe 31 and deliver hot water to the second water outlet 52. In the case of non-self-cleaning, the second solenoid valve 251 can be opened, so that the purified water from the water purifier 1 can enter the second heating device 42 for heating and can be dispensed through the second water outlet 52.

[0080] In one embodiment of this application, a drain outlet 212 is provided on the water dispenser 2, and the drain pipe 6 is constructed to connect the connecting pipe 31 to the drain outlet 212 to discharge waste liquid through the drain outlet 212. Since the water dispenser 2 is usually installed in rooms without drainage structures, such as living rooms or studies, a sealing plug can be detachably installed at the drain outlet 212. When self-cleaning is required, after the user issues a self-cleaning command, they can pull out the sealing plug according to the system guidance and place a water storage container below the drain outlet 212. After the user confirms that the above operation has been completed, the passage between the first heating device 41, the flushing pipe 7, the connecting pipe 31 and the drain pipe 6 is opened. The hot water in the first heating device 41 can flow in the flushing pipe 7 and enter the connecting pipe 31 through the outlet 112, so that the water stored in the connecting pipe 31 can enter the water dispenser 2 through the inlet 211 and be discharged through the drain pipe 6. The wastewater flows out of the water dispenser 2 from the drain outlet 212 and flows into the water storage container for temporary storage. After the self-cleaning process is complete, the system can guide the user to reinstall the sealing plug in its original position, thereby sealing the drain outlet 212 and preventing water leakage during normal use of the pipeline machine 2.

[0081] Example 5 This embodiment provides a control method for a water supply system, which can be applied to the water supply systems provided in Embodiments 1 to 3 above. As mentioned earlier, the water supply system includes a water purifier 1, a water dispenser 2, a connecting pipe 31, and a control valve assembly. The water purifier 1 is configured to filter external water sources and deliver purified water to the water dispenser 2 through the connecting pipe 31. One of the water purifier 1 and the water dispenser 2 is designated as the first device, and the other as the second device. The first device is equipped with a detection element for detecting the water pressure within the connecting pipe 31; specifically, the detection element can be a pressure switch. The control valve assembly is disposed within the water purifier 1 and the water dispenser 2 and is configured to connect to the detection element. When the second device is operating, the control valve assembly is configured to control the first device to operate when the detection element measures that the water pressure within the connecting pipe 31 reaches a threshold.

[0082] The control method provided in this embodiment includes: The second device is controlled to perform its functions. Specifically, a control panel or control unit can be installed on the second device, allowing users to directly send control commands to it via buttons, touchscreen, or a mobile app. For example, a user can send a water replenishment signal to the second device to control it to replenish water, or send a self-cleaning signal to flush the connecting pipe 31. Based on these control signals, the second device can control the opening or closing of its internal pipes, thereby performing corresponding tasks.

[0083] The detection element in the first device detects the water pressure inside the connecting pipe 31. Specifically, the first device cannot directly receive control signals, but needs to detect the water pressure inside the connecting pipe 31 in real time through the detection element, and determine the work to be performed based on the changes in water pressure.

[0084] When the water pressure in the connecting pipe 31 reaches a threshold, the first device is controlled to perform its operation. Specifically, during the operation of the second device based on the control signal, its internal pipes will be opened or closed, thereby causing the water pressure in the connecting pipe 31 to decrease or increase. The detection element in the first device can detect the water pressure in the connecting pipe 31 in real time. When the water pressure reaches the threshold, the detection element can be triggered. Based on the trigger signal of the detection element, the first device can control the opening or closing of its internal pipes, thereby cooperating with the second device to perform its operation.

[0085] As described in Embodiment 1, the pipeline machine 2 is equipped with a liquid storage container and a water replenishment pipeline 9 connected to the liquid storage container. The connecting pipeline 31 is configured to connect the water supply pipeline 16 to the water replenishment pipeline 9. In one embodiment of this application, the control method further includes: based on a water replenishment signal, opening a passage between the filter assembly 12, the water supply pipeline 16, the connecting pipeline 31, the water replenishment pipeline 9, and the liquid storage container. The control valve assembly includes a water replenishment valve 91 disposed on the water replenishment pipeline 9. When water is replenished, the water replenishment valve 91 opens, thereby opening a passage between the connecting pipeline 31, the water replenishment pipeline 9, and the liquid storage container.

[0086] When the first device is a water purifier 1 and the second device is a water dispenser 2, the detection element includes a first detection element 81 installed inside the water purifier 1. Specifically, the first detection element 81 can be a pressure switch installed on the water supply pipe 16. The first detection element 81 can send a signal to control the water purifier 1 based on the water pressure in the connecting pipe 31. The control method also includes: Based on the water replenishment signal, the water replenishment valve 91 is opened to connect the connecting pipe 31, the water replenishment pipe 9, and the storage container. Specifically, the water replenishment signal can come from the user's active control or from a water level sensor in the storage container. When the water level sensor detects a low water level, it can send a water replenishment signal. After receiving the water replenishment signal, the water dispenser 2 controls its internal water replenishment valve 91 to open. Since the connecting pipe 31 is originally under high pressure, when the water replenishment valve 91 opens, the liquid in the connecting pipe 31 can automatically flow towards the low-pressure water replenishment pipe 9, thereby reducing the pressure in the connecting pipe 31.

[0087] When the water pressure in the connecting pipe 31 drops to a first low-pressure threshold, the water purifier 1 is controlled to deliver purified water to the storage container. Specifically, the water purifier 1 delivers purified water to the storage container based on the water pressure in the connecting pipe 31 measured by the first detection element 81. When the water pressure in the connecting pipe 31 drops to the first low-pressure threshold, the first detection element 81 sends a first low-pressure trigger signal. Based on the first low-pressure trigger signal, the water purifier 1 is controlled to deliver purified water to the storage container. The water purifier 1 can start water replenishment based on the first low-pressure trigger signal from the first detection element 81. The inlet solenoid valve 13 and the booster pump 14 can be opened, thereby pumping the external water source to the filter assembly 12 and pumping the filtered purified water into the storage container through the water supply pipe 16, the connecting pipe 31, and the water replenishment pipe 9.

[0088] Based on the water replenishment end signal, the water replenishment valve 91 is controlled to close. Specifically, the water replenishment end signal can be based on the water level sensor's full water signal. After receiving the water replenishment end signal, the water dispenser 2 controls its internal water replenishment valve 91 to close. At this time, the water purifier 1 continues to pump water to the water dispenser 2, so the water pressure in the connecting pipe 31 will increase.

[0089] When the water pressure in the connecting pipe 31 rises to the first high-pressure threshold, the water purifier 1 is controlled to stop water replenishment. Specifically, the water purifier 1 stops water replenishment based on the water pressure in the connecting pipe 31 measured by the first detection element 81. When the water pressure in the connecting pipe 31 rises to the first high-pressure threshold, the first detection element 81 sends a first high-pressure trigger signal; based on the first high-pressure trigger signal, the water purifier 1 is controlled to stop water replenishment. The water purifier 1 can stop water replenishment based on the first high-pressure trigger signal from the first detection element 81, and the inlet solenoid valve 13 and the booster pump 14 will be closed, thereby ending the water replenishment operation and the water purifier 1 will return to standby mode.

[0090] As described in Embodiment 1, the water purifier 1 is provided with a drain pipe 6 connecting the water supply pipe 16 to the wastewater outlet 113, and the water dispenser 2 is provided with a liquid storage container and a flushing pipe 7 connecting the liquid storage container to the connecting pipe 31. In one embodiment of this application, the control method further includes: based on a self-cleaning signal, opening the passage between the liquid storage container, the flushing pipe 7, the connecting pipe 31, the water supply pipe 16, the drain pipe 6, and the wastewater outlet 113. This allows the liquid in the liquid storage container to backwash the connecting pipe 31 and discharge it from the wastewater outlet 113 through the water supply pipe 16, the drain pipe 6, and the wastewater pipe 121.

[0091] In one embodiment of this application, when the first device is a water purifier 1 and the second device is a water dispenser 2, the detection element includes a first detection element 81 disposed within the water purifier 1. Specifically, the first detection element 81 may be a pressure switch disposed on the water supply pipe 16. The first detection element 81 can send a signal to control the water purifier 1 based on the water pressure in the connecting pipe 31. The control method further includes: Based on the self-cleaning signal, the passage between the liquid storage container, the flushing line 7, and the connecting line 31 is opened. Specifically, the self-cleaning signal can come from the user's active control. When the pipeline machine 2 receives the self-cleaning command, the control valve assembly in the pipeline machine 2 is configured to open the passage between the liquid storage container, the flushing line 7, and the connecting line 31. That is, the control switching valve 431 opens the passage between the liquid storage container, the flushing line 7, and the connecting line 31, thereby allowing the liquid in the liquid storage container to flow into the connecting line 31 through the flushing line 7, thereby increasing the pressure in the connecting line 31.

[0092] When the water pressure in the connecting pipe 31 rises to the second high-pressure threshold, the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6, and the wastewater outlet 113 is opened. Specifically, the control valve assembly in the water purifier 1 is configured to open the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6, and the wastewater outlet 113 based on the water pressure in the connecting pipe 31 measured by the first detection element 81. When the water pressure in the connecting pipe 31 rises to the second high-pressure threshold, the first detection element 81 can send a second high-pressure trigger signal. Based on the second high-pressure trigger signal, the water purifier 1 can obtain a self-cleaning command, thereby controlling the first solenoid valve 61 to open, thereby opening the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6, and the wastewater outlet 113. This allows the liquid in the storage container to flow into the connecting pipe 31 through the flushing pipe 7, and drives the water stored in the connecting pipe 31 to be discharged from the wastewater outlet 113 through the water supply pipe 16, the drainage pipe 6, and the waste liquid pipe 121. This avoids the growth of bacteria caused by long-term water storage in the connecting pipe 31 and improves the user's water safety.

[0093] In one embodiment of this application, when the first device is a water dispenser 2 and the second device is a water purifier 1, the detection element includes a second detection element 82 disposed within the water dispenser 2. Specifically, the second detection element 82 may be a pressure switch disposed on the water supply pipe 9. The second detection element 82 can send a signal to control the water dispenser 2 based on the water pressure in the connecting pipe 31. The control method further includes: Based on the self-cleaning signal, the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6, and the wastewater outlet 113 is opened. Specifically, the self-cleaning signal can come from the user's active control. When the water purifier 1 receives the self-cleaning command, the control valve assembly inside the water purifier 1 is configured to open the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6, and the wastewater outlet 113, that is, to control the opening of the first solenoid valve 61, thereby opening the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6, and the wastewater outlet 113. The connecting pipe 31 is originally in a high-pressure state with water. When the first solenoid valve 61 is opened, the liquid in the connecting pipe 31 can automatically flow towards the low-pressure water supply pipe 16, the drain pipe 6, and the wastewater outlet 113, thereby causing the pressure in the connecting pipe 31 to drop.

[0094] When the water pressure in the connecting pipe 31 drops to a second low-pressure threshold, the passage between the storage container, the flushing pipe 7, and the connecting pipe 31 is opened. Specifically, the control valve assembly in the pipeline machine 2 is configured to open the passage between the storage container, the flushing pipe 7, and the connecting pipe 31 based on the water pressure in the connecting pipe 31 measured by the second detection element 82. When the water pressure in the connecting pipe 31 drops to the second low-pressure threshold, the second detection element 82 sends a second low-pressure trigger signal; based on the second low-pressure trigger signal, the passage between the storage container, the flushing pipe 7, and the connecting pipe 31 is opened. The pipeline machine 2 can obtain a self-cleaning command based on the second low-pressure trigger signal. The pipeline machine 2 controls the switching valve 431 to open the passage between the liquid storage container, the flushing pipeline 7 and the connecting pipeline 31, thereby allowing the liquid in the liquid storage container to flow into the connecting pipeline 31 through the flushing pipeline 7, and driving the water stored in the connecting pipeline 31 to be discharged from the wastewater outlet 113 through the water supply pipeline 16, the drainage pipeline 6 and the waste liquid pipeline 121.

[0095] In one embodiment of this application, when the first device is a water purifier 1 and the second device is a water dispenser 2, as described in Embodiment 3, the water supply system may further include a detection pipeline 32 disposed between the water purifier 1 and the water dispenser 2. A third detection element 83 for detecting the water pressure within the detection pipeline 32 is disposed within the water purifier 1. The third detection element 83 is connected to a control valve assembly. Specifically, the third detection element 83 may be a pressure switch, and it can send a signal to control the water purifier 1 based on the water pressure within the detection pipeline 32. The water dispenser 2 is provided with a pressure relief pipeline 23 connected to the detection pipeline 32. A pressure relief valve 231 is disposed on the pressure relief pipeline 23. When the pressure relief valve 231 is open, the passage between the detection pipeline 32, the pressure relief pipeline 23, and the liquid storage container is open. The control method further includes: Based on the self-cleaning signal, the pressure relief line 23 is opened, as well as the passage between the liquid storage container, the flushing line 7, and the connecting line 31 is opened. Specifically, when the pipeline dispenser 2 receives the self-cleaning command, the control valve assembly within the pipeline dispenser 2 is configured to open the passage between the liquid storage container, the flushing line 7, and the connecting line 31, and to open the pressure relief line 32. That is, the switching valve 431 is controlled to open the passage between the liquid storage container, the flushing line 7, and the connecting line 31, and the pressure relief valve 231 is also opened. The detection line 32 was originally in a high-pressure state with water. When the pressure relief valve 231 is opened, the liquid in the detection line 32 can automatically flow towards the low-pressure liquid storage container, thereby causing the pressure in the detection line 32 to drop.

[0096] When the water pressure in the detection pipe 32 drops to the third low-pressure threshold, the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6, and the wastewater outlet 113 is opened. Specifically, the control valve assembly in the water purifier 1 is configured to open the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6, and the wastewater outlet 113 based on the water pressure in the connecting pipe 31 measured by the third detection element 83. When the water pressure in the detection pipe 32 drops to the third low-pressure threshold, the third detection element sends a third low-pressure trigger signal; based on the third low-pressure trigger signal, the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6, and the wastewater outlet 113 is opened. The water purifier 1 can obtain a self-cleaning command based on the third low-pressure trigger signal, and therefore controls the first solenoid valve 61 to open, thereby opening the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6, the waste liquid pipe 121, and the wastewater outlet 113. This allows the liquid in the storage container to flow into the connecting pipe 31 through the flushing pipe 7, and drives the water stored in the connecting pipe 31 to be discharged from the wastewater outlet 113 through the water supply pipe 16, the drainage pipe 6, and the waste liquid pipe 121. This avoids the growth of bacteria caused by long-term water storage in the connecting pipe 31 and improves the user's water safety.

[0097] In one embodiment of this application, the detection element includes a first detection element 81 disposed within the water purifier 1. As described in Embodiment 3, the water dispenser 2 is further provided with a booster pipe 24, which is configured to connect the water supply pipe 9 to the detection pipe 32. The detection pipe 32 triggers the third detection element 83 by draining water through the pressure relief pipe 23, thereby transmitting a self-cleaning command to the water purifier 1. In order to continue transmitting the next self-cleaning command, the pressure within the detection pipe 32 needs to be restored. The booster pipe 24 can deliver purified water to the detection pipe 32, thereby restoring the detection pipe 32 to a full water state and increasing the water pressure inside the detection pipe 32. The control method further includes: Based on the water replenishment completion signal, the water replenishment valve 91 closes the passage between the connecting pipe 31, the water replenishment pipe 9, and the storage container, allowing purified water from the water replenishment pipe 9 to flow into the detection pipe 32 via the pressurization pipe 24. Specifically, when the storage container is fully replenished, the water replenishment valve 91 closes based on the water full signal. At this time, the water purifier 1 continues to pump water to the water dispenser 2. The purified water entering the water dispenser 2 through the connecting pipe 3 can flow into the detection pipe 32 through the pressurization pipe 24, thus increasing the water pressure in the detection pipe 32. After the detection pipe 32 is also full, the water dispenser 2 can no longer replenish water, thus increasing the water pressure in the connecting pipe 31.

[0098] When the water pressure in the connecting pipe 31 drops to the first low-pressure threshold and the water pressure in the detection pipe 32 rises to the third high-pressure threshold, the water purifier 1 is controlled to stop water replenishment. Specifically, the water purifier 1 stops water replenishment based on the water pressure in the detection pipe 32 measured by the third detection element 83 and the water pressure in the connecting pipe 31 measured by the first detection element 81. When the water pressure in the connecting pipe 31 rises to the first high-pressure threshold, the first detection element 81 sends a first high-pressure trigger signal; when the water pressure in the detection pipe rises to the third high-pressure threshold, the third detection element 83 sends a third high-pressure trigger signal; based on the first and third high-pressure trigger signals, the water purifier 1 is controlled to stop water replenishment. At this time, the liquid storage container, connecting pipe 31, and detection pipe 32 are all replenished with water.

[0099] In one embodiment of this application, a fourth detection element 84 for detecting the water pressure in the detection pipeline 32 is provided inside the water dispenser 2. Specifically, the fourth detection element 84 can be a pressure switch installed on the booster pipeline 24. The fourth detection element 84 can send a signal to control the water dispenser 2 based on the water pressure in the detection pipeline 32. The control method further includes: when the water pressure in the detection pipeline 32 rises to a fourth high-pressure threshold, the fourth detection element sends a fourth high-pressure trigger signal; based on the fourth high-pressure trigger signal, the water dispenser 2 is controlled to stop water replenishment. Specifically, during the water replenishment process, the water pressure in the detection pipeline 32 gradually increases. When it rises to the fourth high-pressure threshold, it means that water replenishment is complete, and the water dispenser 2 can stop water replenishment based on the fourth high-pressure trigger signal. After that, the user can use the water dispenser 2 to obtain water normally.

[0100] In one embodiment of this application, as described in Embodiment 1, a first heating device 41 is provided inside the water dispenser 2. The first heating device 41 is configured to heat the filtered purified water, and the storage container is a heating element disposed within the first heating device 41. The control method further includes: based on a self-cleaning signal, connecting the first heating device 41, the flushing pipe 7, the connecting pipe 31, the water supply pipe 16, the drain pipe 6, and the wastewater outlet 113. This application reuses the first heating device 41 to meet the user's daily hot water drinking needs while achieving periodic high-temperature hot water flushing. When self-cleaning is required, the hot water in the first heating device 41 can flow into the connecting pipe 31 through the flushing pipe 7, and drive the water stored in the connecting pipe 31 to be discharged from the drain pipe 6. At the same time, the high temperature of the hot water can sterilize, thereby preventing bacterial growth caused by long-term water storage in the connecting pipe 31 and improving the user's water safety.

[0101] Further, as described in Embodiment 1, the water dispenser 2 is provided with a room temperature water pipe 22 connecting the connecting pipe 31 to the first water outlet 51, and a hot water pipe 43 connecting the first heating device 41 to the first water outlet 51. The control method also includes: based on the room temperature water outlet signal, controlling the passage between the filter assembly 12, the connecting pipe 31, the room temperature water pipe 22 and the first water outlet 51 to be open. Specifically, a room temperature water valve 221 is provided in the room temperature water pipe 22. When room temperature water is dispensed, the room temperature water valve 221 is opened, and the pure water from the filter assembly 12 can flow to the first water outlet 51 through the water supply pipe 16, the connecting pipe 31 and the room temperature water pipe 22.

[0102] Based on the hot water output signal, the system controls the connection between the first heating device 41, the hot water pipe 43, and the first water outlet 51. Specifically, a switching valve 431 is installed on the hot water pipe 43. When the water dispenser 2 receives the hot water output signal, the switching valve 431 is configured to connect the first heating device 41, the hot water pipe 43, and the first water outlet 51, thereby providing hot water for the user.

[0103] Application Scenario 1 (corresponding to the water supply system provided in Implementation Example 1) In a home setting, water purifier 1 is installed in the kitchen, and water dispenser 2 is installed in the living room. The two are connected by a connecting pipe 31 for water supply and by Wi-Fi for signal connection. After the water supply system has been working for a period of time, in order to sterilize and clean the "dead water area" in the connecting pipe 31, the user can issue a self-cleaning command via mobile phone, thereby realizing the self-cleaning of the connecting pipe 31.

[0104] Based on the self-cleaning command, the passage between the first heating device 41, flushing pipe 7, connecting pipe 31, water supply pipe 16, drain pipe 6, waste liquid pipe 121 and wastewater outlet 113 is connected. The hot water in the first heating device 41 can flow in the flushing pipe 7 and flow back to the connecting pipe 31 through the inlet 211, so as to drive the water stored in the connecting pipe 31 to flow back into the water purifier 1 through the outlet 112, and be discharged from the wastewater outlet 113 through the water supply pipe 16, drain pipe 6 and waste liquid pipe 121 in the water purifier 1.

[0105] The self-cleaning process automatically ends when the hot water stored in the first heating device 41 is used up. After the self-cleaning process ends, the water replenishment process will automatically begin. During water replenishment, the water replenishment valve 91 is configured to open the water replenishment pipe 9, and the water pressure in the connecting pipe 31 drops to a first low-pressure threshold. Based on the first low-pressure trigger signal of the first detection element 81, the water purifier 1 is configured to supply purified water to the first heating device 41. When water replenishment is completed, the water replenishment valve 91 is configured to close the water replenishment pipe 9, and the water pressure in the connecting pipe 31 rises to a first high-pressure threshold. Based on the first high-pressure trigger signal of the first detection element 81, the water purifier 1 ends the water replenishment process.

[0106] After the water replenishment is complete, both the water purifier 1 and the water dispenser 2 return to normal standby mode, and the user can use the water supply system to get water normally. When the user wants to get hot water in the living room, based on the hot water outlet control command, the passage between the first heating device 41, the hot water pipe 43 and the first water outlet 51 is opened, and the hot water in the first heating device 41 can flow out from the first water outlet 51 through the hot water pipe 43, thereby meeting the user's need for hot water.

[0107] Application Scenario 2 (corresponding to the water supply system provided in Implementation Example 2) In a home setting, water purifier 1 is installed in the kitchen, and water dispenser 2 is installed in the living room. The two are connected via a connecting pipe 31. After the water supply system has been operating for a period of time, to sterilize and clean the "dead water zone" within the connecting pipe 31, the user issues a self-cleaning command through the control panel on water purifier 1, thus achieving self-cleaning of the connecting pipe 31. During this time, water dispenser 2 cannot receive the control command signal in real time.

[0108] The water purifier 1 controls the opening of the first solenoid valve 61 based on a self-cleaning command, thereby opening the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6, the waste liquid pipe 121, and the wastewater outlet 113. The connecting pipe 31 is originally under high pressure; when the first solenoid valve 61 opens, the liquid in the connecting pipe 31 automatically flows towards the lower pressure areas of the water supply pipe 16, the drain pipe 6, the waste liquid pipe 121, and the wastewater outlet 113, thus reducing the pressure within the connecting pipe 31. When the water pressure in the connecting pipe 31 drops to a second low-pressure threshold, the second detection element 82 sends a second low-pressure trigger signal, and the water purifier 2 can obtain the self-cleaning command based on this signal.

[0109] Based on the self-cleaning command, the pipeline machine 2 controls the switching valve 431 to open the passage between the first heating device 41, the flushing pipe 7 and the connecting pipe 31. This allows the hot water in the first heating device 41 to flow into the connecting pipe 31 through the flushing pipe 7, and drives the water stored in the connecting pipe 31 to be discharged from the wastewater outlet 113 through the water supply pipe 16, the drainage pipe 6 and the waste liquid pipe 121. At the same time, the high temperature of the hot water can play a bactericidal role, thereby preventing bacteria from growing due to long-term water storage in the connecting pipe 31 and improving the user's water safety.

[0110] Application Scenario 3 (corresponding to the water supply system provided in Implementation Example 3) In a home setting, water purifier 1 is installed in the kitchen, and water dispenser 2 is installed in the living room. The two are connected via a connecting pipe 31. After the water supply system has been operating for a period of time, to sterilize and clean the "dead water zone" within the connecting pipe 31, the user issues a self-cleaning command through the control panel on water dispenser 2, thus achieving self-cleaning of the connecting pipe 31. During this time, water purifier 1 cannot receive the control command signal in real time.

[0111] The water purifier 2, based on a self-cleaning command, controls the switching valve 431 to open the passage between the first heating device 41, the flushing pipe 7, and the connecting pipe 31, while simultaneously opening the pressure relief valve 231. The detection pipe 32, which was originally under high pressure, automatically flows towards the low-pressure first heating device 41 when the pressure relief valve 231 opens, causing a pressure drop within the detection pipe 32. When the water pressure in the detection pipe 32 drops to the third low-pressure threshold, the third detection element 83 sends a third low-pressure trigger signal, which the water purifier 1 uses to obtain the self-cleaning command.

[0112] The water purifier 1 controls the first solenoid valve 61 based on the self-cleaning command to open the passage between the connecting pipe 31, the water supply pipe 16, the drain pipe 6, the waste liquid pipe 121 and the wastewater outlet 113. This allows the hot water in the first heating device 41 to flow into the connecting pipe 31 through the flushing pipe 7, and drives the water stored in the connecting pipe 31 through the 1, the water supply pipe 16, the drain pipe 6 and the waste liquid pipe 121, and discharged from the wastewater outlet 113. At the same time, the high temperature of the hot water can play a bactericidal role, thereby preventing bacteria from growing due to long-term water storage in the connecting pipe 31 and improving the user's water safety.

[0113] The detection pipeline 32 triggers the third detection element 83 by draining water through the pressure relief pipeline 23, thereby transmitting a self-cleaning command to the water purifier 1. In order to continue transmitting the next self-cleaning command, the pressure in the detection pipeline 32 needs to be restored. The booster pipeline 24 can deliver purified water to the detection pipeline 32, thereby restoring the detection pipeline 32 to a full state and increasing the water pressure inside the detection pipeline 32. When replenishing water, the water replenishment valve 91 is configured to open the water replenishment pipeline 9, and the water pressure in the connecting pipeline 31 drops to the first low-pressure threshold. Based on the first low-pressure trigger signal of the first detection element 81, the water purifier 1 is configured to deliver purified water to the first heating device 41.

[0114] When the first heating device 41 is fully refilled, the water supply valve 91 closes based on the full water signal of the first heating device 41. At this time, the water purifier 1 continues to pump water to the water dispenser 2. The purified water entering the water dispenser 2 through the connecting pipe 3 can flow into the detection pipe 32 through the booster pipe 24, thus increasing the water pressure in the detection pipe 32. When the water pressure in the detection pipe 32 rises to the third high-pressure threshold, the third detection element 83 sends a third high-pressure trigger signal. After the detection pipe 32 is also full, the water dispenser 2 can no longer supply water, so the water pressure in the connecting pipe 31 will rise. When the water pressure in the connecting pipe 31 rises to the first high-pressure threshold, the first detection element 81 sends a first high-pressure trigger signal. The water purifier 1 stops working based on the first and third high-pressure trigger signals. At this time, the first heating device 41, the connecting pipe 31, and the detection pipe 32 are all fully refilled.

[0115] Application Scenario 4 (corresponding to the water supply system provided in Implementation Example 4) In a home setting, water purifier 1 is installed in the kitchen, and water dispenser 2 is installed in the living room. The two are connected by a connecting pipe 31. After a period of use, the connecting pipe 31 needs to be self-cleaned and flushed. The user can issue the self-cleaning command via their mobile phone.

[0116] After issuing a self-cleaning command, the user can remove the sealing plug at the drain outlet 212 according to the system guidance and place a water storage container below the drain outlet 212. After the user confirms that the above operation has been completed, the system controls the connection between the first heating device 41, the flushing pipe 7, the connecting pipe 31, and the drain pipe 6. The hot water in the first heating device 41 can flow in the flushing pipe 7 and enter the connecting pipe 31 through the outlet 112, so that the water stored in the connecting pipe 31 can enter the water dispenser 2 through the inlet 211 and be discharged through the drain pipe 6. The wastewater flows out of the water dispenser 2 from the drain outlet 212 and flows into the water storage container for temporary storage. After the self-cleaning is completed, the system can guide the user to put the sealing plug back in place, thereby sealing the drain outlet 212 and preventing water leakage from the water dispenser 2 during subsequent normal use.

[0117] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0118] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0119] The preferred embodiments disclosed above are merely illustrative of this application. The optional embodiments do not exhaustively describe all details, nor do they limit this application to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this application. These embodiments are selected and specifically described in this application to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to better understand and utilize this application. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A water supply system, characterized in that, include: A water purifier, wherein the water purifier is equipped with a filter assembly for filtering external water sources, and a water supply pipeline connected to the filter assembly; A water dispenser, connected to the water purifier, and configured to receive purified water from the water purifier; A connecting pipe is disposed between the water purifier and the water dispenser, communicates with the water supply pipe, and is configured to deliver purified water from the water purifier to the water dispenser. A detection element is provided in one of the water purifiers or pipeline machines, and the detection element is configured to detect the water pressure in the connecting pipeline. A control valve assembly is disposed within the water purifier and the water dispenser, and is configured to connect to the detection element.

2. The water supply system as described in claim 1, characterized in that, The pipeline machine is equipped with a liquid storage container and a water replenishment pipeline connected to the liquid storage container; the connecting pipeline is configured to connect the water supply pipeline to the water replenishment pipeline; when replenishing water, the control valve assembly is configured to open the passage between the filter assembly, the water supply pipeline, the connecting pipeline, the water replenishment pipeline and the liquid storage container.

3. The water supply system as described in claim 2, characterized in that, The detection element includes a first detection element disposed inside the water purifier, and the control valve assembly includes a water supply valve disposed on the water supply pipeline; The water supply valve is configured to open to open the passage between the connecting pipe, the water supply pipe and the storage container. The water purifier delivers purified water to the storage container according to the water pressure in the connecting pipe measured by the first detection device. The water supply valve is configured to be closed, and the water purifier stops supplying water based on the water pressure in the connecting pipe measured by the first detection device.

4. The water supply system as described in claim 1, characterized in that, The water purifier is provided with a drain pipe that connects the water supply pipe to the wastewater outlet; the pipeline machine is provided with a liquid storage container and a flushing pipe that connects the liquid storage container to the connecting pipe; during self-cleaning, the control valve assembly is configured to open the passage between the liquid storage container, the flushing pipe, the connecting pipe, the water supply pipe, the drain pipe and the wastewater outlet.

5. The water supply system as described in claim 4, characterized in that, The detection device includes a first detection device disposed inside the water purifier; during self-cleaning, the control valve assembly inside the water dispenser is configured to open the passage between the liquid storage container, the flushing pipe and the connecting pipe; the control valve assembly inside the water purifier is configured to open the passage between the connecting pipe, the water supply pipe, the drain pipe and the wastewater outlet according to the water pressure in the connecting pipe measured by the first detection device.

6. The water supply system as described in claim 4, characterized in that, The detection element includes a second detection element disposed within the water purifier; during self-cleaning, the control valve assembly within the water purifier is configured to open the passage between the connecting pipe, the water supply pipe, the drain pipe, and the wastewater outlet; the control valve assembly within the water purifier is configured to open the passage between the liquid storage container, the flushing pipe, and the connecting pipe based on the water pressure within the connecting pipe measured by the second detection element.

7. The water supply system as described in claim 4, characterized in that, The water supply system also includes a detection pipeline installed between the water purifier and the water dispenser. A third detection element for detecting the water pressure in the detection pipeline is installed in the water purifier, and the third detection element is connected to the control valve assembly. A pressure relief pipeline connected to the detection pipeline is installed in the water dispenser. During self-cleaning, the control valve assembly in the pipeline machine is configured to open the passage between the liquid storage container, the flushing pipeline and the connecting pipeline, and to open the pressure relief pipeline; the control valve assembly in the water purifier is configured to open the passage between the connecting pipeline, the water supply pipeline, the drainage pipeline and the wastewater outlet based on the water pressure in the detection pipeline measured by the third detection element.

8. The water supply system as described in claim 7, characterized in that, The detection pipeline is configured to connect to the connecting pipeline via a pressurization pipeline. The pressurization pipeline is equipped with a pressurization check valve, which is configured to allow the liquid in the pressurization pipeline to flow only in the direction of the detection pipeline.

9. The water supply system as described in claim 8, characterized in that, The detection device includes a first detection device disposed inside the water purifier; the pipeline machine is provided with a water supply pipeline communicating with the liquid storage container, and the connecting pipeline is configured to connect the water supply pipeline to the water supply pipeline; the booster pipeline is configured to communicate with the connecting pipeline through the water supply pipeline; When the liquid storage container is replenished with water, the water replenishment pipeline is closed, and the purified water from the water replenishment pipeline is configured to flow into the detection pipeline through the pressurization pipeline. The water purifier ends the water replenishment operation based on the water pressure in the detection pipeline measured by the third detection element and the water pressure in the connecting pipeline measured by the first detection element.

10. The water supply system as described in claim 4, characterized in that, The pipeline machine is equipped with a first heating device, which is configured to heat the filtered purified water; the liquid storage container is a heating element disposed in the first heating device; during self-cleaning, the control valve assembly is configured to open the passage between the first heating device, the flushing pipeline, the connecting pipeline, the water supply pipeline, the drainage pipeline and the wastewater outlet.

11. The water supply system as described in claim 10, characterized in that, The pipeline machine is equipped with a normal temperature water pipeline that connects the connecting pipeline to the first water outlet, and a hot water pipeline that connects the first heating device to the first water outlet. When discharging room temperature water, the control valve assembly is configured to open the passage between the filter assembly, the connecting pipeline, the room temperature water pipeline and the first water outlet. When hot water is dispensed, the control valve assembly is configured to open the passage between the first heating device, the hot water pipe and the first water outlet.

12. The water supply system as described in claim 4, characterized in that, The control valve assembly includes a first solenoid valve disposed on the drain pipe; during water replenishment, the first solenoid valve is configured to close the drain pipe so that purified water from the filter assembly can flow through the water supply pipe to the connecting pipe; during self-cleaning, the first solenoid valve is configured to open the passage between the connecting pipe, the water supply pipe, the drain pipe and the wastewater outlet.

13. The water supply system as described in claim 4, characterized in that, The water purifier is equipped with a waste liquid pipeline, which is configured to connect the filter assembly to the wastewater outlet and to discharge the waste liquid generated during the filtration process. The drainage pipe is configured to connect with the waste liquid pipe to the wastewater outlet.

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