Water purification waterway and water purification device

Abstract

The utility model relates to a water purification waterway and a water purification device, and belongs to the field of water purification equipment. The water purification waterway comprises a first filter element and a second filter element, a booster pump, wherein the booster pump is arranged; the first valve body is communicated with the booster pump; the second filter element is provided with a purified water inlet and a pure water outlet, and the purified water inlet is communicated with the booster pump; the second valve body is communicated with the booster pump, and the pure water outlet is respectively communicated with the second valve body and the outside. The second valve body is used for adjusting the direction and the flow speed of water flow. After filtering is completed, the second valve body is opened, and pure water filtered by the second filter element enters the second filter element again after being pressurized by the booster pump, so that the situation that the filtered liquid is polluted due to long-term permeation of the liquid in the second filter element in the non-use process is avoided, and the second filter element is soaked in the pure water when not used.

Description

Technical Field

[0001] This utility model relates to the field of water purification equipment, and in particular to a water purification circuit and water purification device. Background Technology

[0002] In water purification equipment, filter cartridges are crucial components for filtering impurities, bacteria, heavy metals, and other harmful substances from water. They typically consist of multiple layers of filter material and possess highly efficient water purification capabilities. However, many current water purification devices present a potential water contamination problem during use: when the equipment is not in use, the purified water already filtered inside the filter cartridge can come into contact with unfiltered water, potentially leading to contamination of the filtered liquid. Specifically, due to backflow or unfiltered liquid entering the filter cartridge during settling, the originally purified water can become contaminated. Water containing impurities or bacteria may seep into the filter cartridge, reducing filtration efficiency and even causing the entire water treatment system to fail. This phenomenon is particularly pronounced when the equipment is not used for extended periods. Utility Model Content

[0003] Therefore, it is necessary to provide a water purification circuit and water purification device to address the problem that the liquid inside the filter element will be contaminated when the water in the water purification equipment is not in use.

[0004] A water purification circuit includes: a first filter element having a tap water inlet and a purified water outlet, the tap water inlet being connected to an external liquid source; a booster pump having a first inlet and a first outlet; a first valve body having a second inlet and a second outlet, the second inlet being connected to the purified water outlet and the second outlet being connected to the first inlet of the booster pump; a second filter element having a purified water inlet and a pure water outlet, the purified water inlet being connected to the first outlet of the booster pump; and a second valve body having a third inlet and a third outlet, the third outlet being connected to the first inlet of the booster pump, the pure water outlet being connected to both the third inlet and the outside environment.

[0005] This application discloses a water purification circuit that connects to an external liquid source via a tap water inlet. Through the tap water inlet, the entire system can connect to an external water supply system, ensuring a sufficient supply of raw water. The purified water outlet provides preliminary filtration through a first filter element, removing large particles, suspended solids, and sediment from the water, providing a relatively clean water source for subsequent purification processes. This effectively reduces the burden on subsequent filters and extends their service life. A booster pump has a first inlet and a first outlet, enabling it to provide the necessary water pressure within the system to drive the water flow through the entire filtration process. In cases of insufficient water pressure, the booster pump can effectively increase the water flow velocity, ensuring sufficient power in the pipeline, thereby promoting the normal operation of each stage of the filter elements and valves. A second inlet connects to the purified water outlet, while a second outlet connects to the booster pump's inlet. This design allows control of the water flow direction, ensuring the water is fully treated during filtration. A first valve body regulates the water flow, ensuring that purified water smoothly enters the booster pump, where the pump further increases the water pressure. The second filter cartridge further refines the water filtration after the booster pump. The purified water inlet is connected to the first outlet of the booster pump, ensuring that water flowing through the booster pump enters the second filter cartridge. This helps increase water pressure, promoting water flow through the filter layer of the second cartridge and removing smaller impurities and contaminants. The second valve body has a third inlet and a third outlet. The third inlet is connected to the first inlet of the booster pump, and the third outlet is connected to the pure water outlet and the outside environment. The function of the second valve body is to regulate the direction and speed of water flow. After filtration is complete, the second valve body can be opened, allowing the pure water filtered by the second filter cartridge to re-enter the second filter cartridge after being pressurized by the booster pump. This prevents the filtered liquid inside the second filter cartridge from becoming contaminated due to long-term permeation when not in use, thus preventing the second filter cartridge from being soaked in pure water.

[0006] In one embodiment, the second filter element is a reverse osmosis membrane filter element, which has a purified water inlet, a pure water outlet, and a wastewater outlet, and also includes a third valve body connected to the wastewater outlet. Reverse osmosis (RO) membranes are one of the most effective filtration methods in current water purification technology. Through the characteristics of a semi-permeable membrane, it separates dissolved substances such as salts, heavy metals, bacteria, and viruses from water molecules, greatly improving water purity. The purified water inlet is connected to the first outlet of a booster pump to ensure sufficient pressure for the water flowing into the reverse osmosis membrane. Driven by the booster pump, water is filtered through the reverse osmosis membrane filter element, and purified water is discharged through the pure water outlet. The reverse osmosis membrane filter element design enables high-precision water purification. It is particularly suitable for scenarios requiring the removal of trace dissolved pollutants such as heavy metals and pesticide residues from water. Reverse osmosis membrane filter elements not only filter out pure water but also generate a certain amount of wastewater, which typically contains pollutants, impurities, and salts that failed to pass through the reverse osmosis membrane. Therefore, a wastewater outlet was designed to discharge this wastewater, ensuring that the quality of the pure water is not affected. A third valve body is connected to the wastewater outlet, and its function is to regulate the flow of wastewater. The third valve body can control the wastewater discharge volume as needed, ensuring efficient system operation. It can also be switched on and off according to actual usage conditions to reduce resource waste.

[0007] In one embodiment, a third filter element is also included. This third filter element has a fourth inlet and a fourth outlet. The pure water outlet is connected to both the third and fourth inlets, and the fourth outlet is used to connect to the outside environment. The third filter element further purifies the water filtered by the second filter element, removing trace amounts of harmful substances, odors, and organic matter to ensure purer water quality that meets drinking water standards. By removing impurities such as chlorine and chemical residues, the third filter element improves the taste of the water, ensuring it is clearer and more natural, thus enhancing the user's drinking experience.

[0008] In one embodiment, a high-pressure switch is also included. The pure water outlet is connected to the high-pressure switch, which is also connected to the third liquid inlet and the outside environment. By connecting the high-pressure switch to the pure water outlet, the water pressure in the purified water section of the system can be monitored in real time. If the water pressure in the system exceeds a set safety value, or if the water pressure is insufficient to ensure normal system operation, the high-pressure switch will activate, automatically cutting off the water flow or adjusting the system's operating status. The design of the high-pressure switch makes the operation of the entire system more automated and intelligent. Users can ensure that the system operates within a safe and effective water pressure range without manual intervention, greatly improving user convenience and the system's intelligence level.

[0009] In one embodiment, a water circuit board assembly is also included, on which the first and second filter elements are detachably mounted, and both the first and second valve bodies are mounted. The water circuit board assembly provides a centralized support platform for the water purification system. All core components, including filter elements and valve bodies, are mounted on this assembly, ensuring a tight fit between components and preventing leaks or malfunctions due to loosening or displacement of individual parts. By integrating multiple components into the water circuit board assembly, the number of connection points between components is reduced, resulting in a more compact and simpler system structure. This not only reduces design complexity but also effectively reduces potential leak points in the water circuit, improving the overall sealing and stability of the system.

[0010] In one embodiment, the water circuit board assembly includes a first inlet channel, a first adapter channel, a second adapter channel, a second outlet channel, a second inlet channel, a third inlet channel, and a fourth inlet channel. The first adapter channel and the second adapter channel are adapted to the first filter element. The portion of the first filter element with a tap water inlet extends into the first adapter channel, and the portion of the first filter element with a purified water outlet extends into the second adapter channel. The first inlet channel communicates with the first adapter channel, and the second outlet channel communicates with the second adapter channel. The first valve body communicates with both the second outlet channel and the second inlet channel. The third inlet channel communicates with both the second inlet channel and the first inlet end of the booster pump. The fourth inlet channel communicates with both the third inlet channel and the third outlet end of the second valve body. The water circuit board assembly concentrates all key components such as the filter element, valve body, and inlet channels in one location, facilitating overall maintenance and inspection. Users or maintenance personnel can easily check for blockages, leaks, or wear in the channels, simplifying maintenance operations. The meticulously designed inlet, outlet, and adapter channels ensure smooth and efficient water flow, reducing flow resistance and improving system efficiency. The valve body and multi-channel design allow for flexible control of water direction, flow rate, and pressure, adapting to different operational needs and enhancing system versatility. Precise control of water pressure and direction prevents equipment damage caused by excessive water pressure or poor flow, enhancing system stability and safety. Reduced flow resistance and increased system efficiency directly lower energy consumption, improving system economy. The integrated design makes the system more compact, saving space while facilitating maintenance and fault diagnosis, thus improving system reliability and lifespan.

[0011] In one embodiment, the water circuit board assembly further includes a third adapter channel, a fourth adapter channel, a fifth adapter channel, a third liquid outlet channel, a fourth liquid outlet channel, and a fifth liquid inlet channel. The second filter element is a reverse osmosis membrane filter element, which includes a purified water inlet, a pure water outlet, and a wastewater outlet. The portion of the reverse osmosis membrane filter element with the purified water inlet extends into the third adapter channel, the portion with the pure water outlet extends into the fourth adapter channel, and the portion with the wastewater outlet extends into the fifth adapter channel. The third liquid inlet channel is connected to both the first liquid outlet and the third adapter channel. The fourth adapter channel is connected to the third liquid outlet channel. The assembly also includes a high-pressure switch, one end of which is connected to the third liquid outlet channel, and the other end of which is connected to the fourth liquid outlet channel. The fourth liquid outlet channel is used to communicate with the outside environment. The fifth liquid inlet channel is connected to the third adapter channel.

[0012] In one embodiment, a third filter element is also included. The water circuit board assembly has a sixth liquid inlet channel, the third filter element is connected to the sixth liquid inlet channel, and the sixth liquid inlet channel is connected to the fourth liquid outlet channel. Through the further refined purification process of the third filter element, minute impurities, bacteria, or other harmful substances in the water are removed. By placing it in the water circuit, the third filter element can perform fine filtration of the water quality as the water flows through, providing a higher level of water quality assurance.

[0013] In one embodiment, the water circuit board assembly further includes a first liquid outlet channel, which communicates with the second adapter channel. The first liquid outlet channel allows liquid to be output from the second adapter channel, improving the channel's efficiency and enabling more rational liquid distribution during the guiding process.

[0014] In one embodiment, a third filter element and a high-pressure switch are also included. The water circuit board assembly includes a first water circuit board assembly and a second water circuit board assembly. The second water circuit board assembly is disposed on the first water circuit board assembly. The first filter element, the first valve body, the second filter element, the second valve body, and the high-pressure switch are all disposed on the first water circuit board assembly. The third filter element is disposed on the second water circuit board assembly. The third filter element has a fourth inlet end and a fourth outlet end. The fourth outlet end is used to communicate with the outside. The pure water outlet is connected to the high-pressure switch. The high-pressure switch is connected to both the third inlet end and the fourth inlet end. Dividing the water circuit board assembly into a first water circuit board assembly and a second water circuit board assembly, and stacking them, improves the modularity and structural compactness of the system. The first water circuit board assembly integrates multiple key components, such as the first filter element, the first valve body, the second filter element, the second valve body, and the high-pressure switch, while the second water circuit board assembly is specifically used to install the third filter element. This layered structure allows the water circuit components to be rationally distributed in a limited space, improving space utilization efficiency, reducing the overall system volume, making the system more compact, and adaptable to various installation environments. Modular and layered design not only improves the system's space utilization but also facilitates subsequent maintenance. If a component needs to be replaced or maintained, maintenance personnel can easily access and disassemble the corresponding module, reducing maintenance difficulty and time.

[0015] In one embodiment, the first water circuit board assembly includes a water circuit board body, a first water shut-off component, a second water shut-off component, a third water shut-off component, a fourth water shut-off component, and a water quality detection component. The water circuit board body is provided with a first adapter channel, a second adapter channel, a third adapter channel, and a fourth adapter channel. The first water shut-off component, the second water shut-off component, the third water shut-off component, and the fourth water shut-off component are respectively located within the first adapter channel, the second adapter channel, the third adapter channel, and the fourth adapter channel. The first water shut-off component, the second water shut-off component, the third water shut-off component, and the fourth water shut-off component can respectively open or close the first adapter channel, the second adapter channel, the third adapter channel, and the fourth adapter channel. The first filter element can drive the first water shut-off component and the second water shut-off component to open, and the second filter element can drive the third water shut-off component and the fourth water shut-off component to open. By having the first filter element and the second filter element respectively drive their respective first water shut-off component, the second water shut-off component, the third water shut-off component, and the fourth water shut-off component to open or close, this linkage mechanism makes it easier to replace the first filter element and the second filter element. When the filter needs to be replaced, remove the corresponding filter. The water-blocking component can be used to seal the adapter channel after the filter is removed to prevent liquid backflow. It can also prevent external substances from entering the water circuit board assembly and contaminating it, thus improving the user experience.

[0016] The second aspect of this application discloses a water purification device, which includes the aforementioned water purification path.

[0017] The second aspect of this application discloses a water purification device. By using a water purification circuit, the water purification device can prevent residual water in the second filter element from affecting the water quality after long-term soaking inside the second filter element. By re-injecting purified liquid into the second filter element, the device ensures that the water quality is maintained during use after a period of time. Attached Figure Description

[0018] Figure 1 This is a first perspective view of an embodiment of the water purification device;

[0019] Figure 2 This is a second perspective view of Embodiment 1 of the water purification device;

[0020] Figure 3 A first perspective view of a portion of the structure of a water purification device;

[0021] Figure 4 A second perspective view of a portion of the structure of a water purification device;

[0022] Figure 5 A third perspective view of part of the structure of the water purification device;

[0023] Figure 6 The fourth perspective view shows a portion of the structure of the water purification device;

[0024] Figure 7 This is a first cross-sectional view of a portion of the structure of a water purification device.

[0025] Figure 8 This is a second cross-sectional view of a portion of the water purification device.

[0026] Figure 9 This is a third cross-sectional view of a portion of the water purification device.

[0027] Figure 10 This is a fourth cross-sectional view of a portion of the water purification device.

[0028] Figure 11 This is a perspective view of Embodiment 2 of the water purification device;

[0029] Figure 12 This is a first exploded view of Embodiment 2 of the water purification device;

[0030] Figure 13 This is a second exploded view of Embodiment 2 of the water purification device.

[0031] The correspondence between the reference numerals and the component names is as follows:

[0032] 1. First filter element;

[0033] 2. First valve body;

[0034] 3. Second filter element;

[0035] 4. Second valve body,

[0036] 5. Third valve body;

[0037] 6. Third filter element;

[0038] 7. High-voltage switch;

[0039] 8. Water circuit board assembly, 81. First water circuit board assembly, 811. Water circuit board body, 812. First water cut-off assembly, 813. Second water cut-off assembly, 814. Third water cut-off assembly, 815. Fourth water cut-off assembly, 816. Water quality detection assembly, 82. Second water circuit board assembly, 8101. First liquid inlet channel, 8102. First adapter channel, 8103. Second adapter channel, 8104. First liquid outlet channel, 8105. Second liquid outlet channel, 8106. Second liquid inlet channel, 8107. Third liquid inlet channel, 8108. Fourth liquid inlet channel, 8109. Third adapter channel, 8110. Fourth adapter channel, 8111. Fifth adapter channel, 8112. Third liquid outlet channel, 8113. Fourth liquid outlet channel, 8114. Fifth liquid inlet channel, 8115. Sixth liquid inlet channel. Detailed Implementation

[0040] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0042] The following description, with reference to the accompanying drawings, describes some embodiments of the water purification system and water purification device of this utility model.

[0043] Example 1

[0044] like Figures 1 to 13As shown, this embodiment discloses a water purification circuit, which includes: a first filter element 1, which has a tap water inlet and a purified water outlet, the tap water inlet being used to connect with an external liquid source; a booster pump, which has a first inlet end and a first outlet end; a first valve body 2, which has a second inlet end and a second outlet end, the second inlet end being connected to the purified water outlet and the second outlet end being connected to the first inlet end of the booster pump; a second filter element 3, which has a purified water inlet and a pure water outlet, the purified water inlet being connected to the first outlet end of the booster pump; and a second valve body 4, which has a third inlet end and a third outlet end, the third outlet end being connected to the first inlet end of the booster pump, and the pure water outlet being connected to the third inlet end and the outside world respectively.

[0045] This application discloses a water purification circuit that connects to an external liquid source via a tap water inlet. Through the tap water inlet, the entire system can connect to an external water supply system, ensuring a sufficient supply of raw water. The purified water outlet, through a first filter element 1, provides preliminary filtration to remove large particulate impurities, suspended solids, and sediment from the water, providing a relatively clean water source for subsequent purification processes. This effectively reduces the burden on subsequent filters and extends their service life. A booster pump has a first inlet and a first outlet, enabling it to provide the necessary water pressure within the system to drive the water flow through the entire filtration process. In cases of insufficient water pressure, the booster pump can effectively increase the water flow velocity, ensuring sufficient power in the pipeline, thereby promoting the normal operation of each stage of the filter elements and valves. A second inlet is connected to the purified water outlet, while a second outlet is connected to the booster pump's inlet. This design allows control of the water flow direction, ensuring the water is fully treated during filtration. A first valve body regulates the water flow, ensuring that purified water can smoothly enter the booster pump, where the booster pump further increases the water pressure. The second filter element 3 further refines the water filtration after the booster pump. The purified water inlet is connected to the first outlet of the booster pump, ensuring that water flowing through the booster pump enters the second filter element. This helps increase water pressure, promoting water flow through the filter layer of the second filter element 3 and removing smaller impurities and contaminants from the water. The second valve body 4 has a third inlet and a third outlet. The third inlet is connected to the first inlet of the booster pump, and the third outlet is connected to the pure water outlet and the outside environment. The function of the second valve body is to regulate the direction and speed of the water flow. After filtration is complete, the second valve body 4 can be opened, allowing the pure water filtered by the second filter element 3 to re-enter the second filter element 3 after being pressurized by the booster pump. This prevents the filtered liquid in the second filter element 3 from becoming contaminated due to long-term permeation when not in use, thus preventing the second filter element 3 from being soaked in pure water when not in use.

[0046] In addition to the features of the above embodiments, this embodiment further specifies that: the second filter element 3 is a reverse osmosis membrane filter element, which is provided with a purified water inlet, a pure water outlet, and a wastewater outlet, and also includes a third valve body 5, which is connected to the wastewater outlet. Reverse osmosis (RO) membranes are one of the most effective filtration methods in current water purification technology. Through the characteristics of a semi-permeable membrane, it separates dissolved substances such as salts, heavy metals, bacteria, and viruses from water molecules, greatly improving the purity of the water. The purified water inlet is connected to the first outlet of the booster pump to ensure that the water flowing into the reverse osmosis membrane has sufficient pressure. Driven by the booster pump, water is filtered through the reverse osmosis membrane filter element, and purified water is discharged through the pure water outlet. The reverse osmosis membrane filter element design enables high-precision purification of water quality. It is particularly suitable for scenarios requiring the removal of trace dissolved pollutants such as heavy metals and pesticide residues from water. The reverse osmosis membrane filter element not only filters out pure water but also generates a certain amount of wastewater, which typically contains pollutants, impurities, and salts that failed to pass through the reverse osmosis membrane. Therefore, a wastewater outlet was designed to discharge this wastewater, ensuring that the quality of the pure water is not affected. The third valve body 5 is connected to the wastewater outlet, and its function is to regulate the flow of wastewater. The third valve body can control the wastewater discharge volume as needed, ensuring efficient system operation. It can also be switched on and off according to actual usage to reduce resource waste.

[0047] like Figure 12 and Figure 13 As shown, in addition to the features of the above embodiments, this embodiment further includes a third filter element 6. The third filter element 6 is provided with a fourth inlet end and a fourth outlet end. The pure water outlet is connected to the third inlet end and the fourth inlet end, respectively, and the fourth outlet end is used to connect to the outside environment. The water filtered by the second filter element 3 is further purified by the third filter element 6, removing trace amounts of harmful substances, odors, and organic matter from the water, ensuring that the water quality is purer and meets drinking water standards. By removing impurities such as chlorine and chemical residues from the water, the third filter element 6 improves the taste of the water, ensuring that the water is more refreshing and natural, and enhancing the user's drinking experience.

[0048] like Figure 11 and Figure 12 As shown, in addition to the features of the above embodiments, this embodiment further includes a high-pressure switch 7, with the pure water outlet connected to the high-pressure switch 7, and the high-pressure switch 7 connected to both the third liquid inlet and the outside environment. By connecting the high-pressure switch 7 to the pure water outlet, the water pressure in the purified water section of the system can be monitored in real time. If the water pressure in the system exceeds the set safety value, or if the water pressure is insufficient to ensure normal system operation, the high-pressure switch will activate, automatically cutting off the water flow or adjusting the system's operating state. The design of the high-pressure switch makes the operation of the entire system more automated and intelligent. Users can ensure that the system operates within a safe and effective water pressure range without manual intervention, greatly improving user convenience and the system's intelligence level.

[0049] like Figure 12 and Figure 13 As shown, in addition to the features of the above embodiments, this embodiment further includes a water circuit board assembly 8, with the first filter element 1 and the second filter element 3 detachably mounted on the water circuit board assembly 8, and the first valve body 2 and the second valve body 4 both mounted on the water circuit board assembly 8. The water circuit board assembly 8 provides a centralized support platform for the water purification system. All core components, filter elements and valve bodies, are mounted on this assembly, ensuring a tight fit between components and preventing system leaks or malfunctions due to loosening or displacement of individual parts. By integrating multiple components into the water circuit board assembly, the number of connection points between components is reduced, making the system structure more compact and simpler. This not only reduces design complexity but also effectively reduces potential leak points in the water circuit, improving the overall sealing and stability of the system.

[0050] like Figure 7 and Figure 8As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the water circuit board assembly 8 is provided with a first liquid inlet channel 8101, a first adapter channel 8102, a second adapter channel 8103, a second liquid outlet channel 8105, a second liquid inlet channel 8106, a third liquid inlet channel 8107, and a fourth liquid inlet channel 8108. The first adapter channel 8102 and the second adapter channel 8103 are adapted to the first filter element 1. The portion of the first filter element 1 with a tap water inlet extends into the first adapter channel 8102. The first filter element 1 is provided with... The portion with the purified water outlet extends into the second adapter channel 8103. The first inlet channel 8101 connects to the first adapter channel 8102, and the second outlet channel 8105 connects to the second adapter channel 8103. The first valve body 2 connects to both the second outlet channel 8105 and the second inlet channel 8106. The third inlet channel 8107 connects to both the second inlet channel 8106 and the first inlet end of the booster pump. The fourth inlet channel 8108 connects to both the third inlet channel 8107 and the third outlet end of the second valve body 4. The water circuit board assembly 8 concentrates all key components such as filter elements, valve bodies, and inlet channels in one location, facilitating overall maintenance and inspection. Users or maintenance personnel can easily check for blockages, leaks, or wear in the channels, simplifying maintenance operations. The carefully designed inlet, outlet, and adapter channels ensure smooth and efficient water flow, reduce water flow resistance, and improve system efficiency. Through its valve body and multi-channel design, the system can flexibly control the direction, flow rate, and pressure of water flow, adapting to different working requirements and enhancing its versatility. Precise control of water pressure and direction prevents equipment damage caused by excessive water pressure or poor flow, enhancing system stability and safety. Reduced flow resistance and increased system efficiency directly lower energy consumption, improving system economy. The integrated design makes the system more compact, saving space while facilitating maintenance and fault diagnosis, thus improving system reliability and lifespan.

[0051] like Figure 7 and Figure 8As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the water circuit board assembly 8 is also provided with a third adapter channel 8109, a fourth adapter channel 8110, a fifth adapter channel 8111, a third liquid outlet channel 8112, a fourth liquid outlet channel 8113, and a fifth liquid inlet channel 8114; the second filter element 3 is a reverse osmosis membrane filter element, which is provided with a purified water inlet, a pure water outlet, and a wastewater outlet; the portion of the reverse osmosis membrane filter element with the purified water inlet extends into the third adapter channel 8109; and the portion of the reverse osmosis membrane filter element with the pure water outlet extends into the fourth adapter channel 8114. Within the adapter channel 8110, the portion of the reverse osmosis membrane filter element with a wastewater outlet extends into the fifth adapter channel 8111. The third inlet channel 8107 is connected to the first outlet end and the third adapter channel 8109 respectively. The fourth adapter channel 8110 is connected to the third outlet channel 8112. It also includes a high-pressure switch 7, one end of which is connected to the third outlet channel 8112, and the other end of which is connected to the fourth outlet channel 8113. The fourth outlet channel 8113 is used to communicate with the outside world. The fifth inlet channel 8114 is connected to the third adapter channel 8109.

[0052] like Figure 12 and Figure 13 As shown, in addition to the features of the above embodiments, this embodiment further includes a third filter element 6, and the water circuit board assembly 8 is provided with a sixth liquid inlet channel 8115. The third filter element 6 is connected to the sixth liquid inlet channel 8115, and the sixth liquid inlet channel 8115 is connected to the fourth liquid outlet channel 8113. Through the further refined purification process of the third filter element 6, tiny impurities, bacteria, or other harmful substances in the water are removed. By placing it in the water circuit, the third filter element 6 can perform fine filtration of water quality as water flows through, providing a higher level of water quality assurance.

[0053] like Figure 7 and Figure 8 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the water circuit board assembly 8 is also provided with a first liquid outlet channel 8104, which is connected to the second adapter channel 8103. The first liquid outlet channel 8104 allows liquid in the second adapter channel 8103 to be output, improving the channel's rationality and making the liquid distribution more reasonable during the guiding process.

[0054] like Figure 4 and Figure 5As shown, in addition to the features of the above embodiments, this embodiment further includes a third filter element 6 and a high-pressure switch 7. The water circuit board assembly 8 includes a first water circuit board assembly 81 and a second water circuit board assembly 82. The second water circuit board assembly 82 is disposed on the first water circuit board assembly 81. The first filter element 1, the first valve body 2, the second filter element 3, the second valve body 4, and the high-pressure switch 7 are all disposed on the first water circuit board assembly 81. The third filter element 6 is disposed on the second water circuit board assembly 82. The third filter element 6 has a fourth inlet end and a fourth outlet end. The fourth outlet end is used to communicate with the outside world. The pure water outlet is connected to the high-pressure switch 7. The high-pressure switch 7 is connected to the third inlet end and the fourth inlet end, respectively. Dividing the water circuit board assembly 8 into a first water circuit board assembly 81 and a second water circuit board assembly 82 and stacking them improves the modularity and structural compactness of the system. The first water circuit board assembly 81 integrates multiple key components, such as the first filter element, the first valve body, the second filter element, the second valve body, and the high-pressure switch, while the second water circuit board assembly 82 is specifically used to install the third filter element. This layered structure allows for the rational distribution of water system components within a limited space, improving space utilization efficiency, reducing the overall system size, and making the system more compact and adaptable to various installation environments. Modular and layered design not only improves system space utilization but also facilitates subsequent maintenance. If a component needs replacement or maintenance, maintenance personnel can easily access and disassemble the corresponding module, reducing maintenance difficulty and time.

[0055] like Figure 7 and Figure 8As shown, in addition to the features of the above embodiments, this embodiment further defines: the first water circuit board assembly 81 includes a water circuit board body 811, a first water cut-off assembly 812, a second water cut-off assembly 813, a third water cut-off assembly 814, a fourth water cut-off assembly 815, and a water quality detection assembly 816. The water circuit board body 811 is provided with a first adapter channel 8102, a second adapter channel 8103, a third adapter channel 8109, and a fourth adapter channel 8110. The first water cut-off assembly 812, the second water cut-off assembly 813, the third water cut-off assembly 814, and the fourth water cut-off assembly 815 are respectively located in the first adapter channel 8102, the second water cut-off assembly 813, the third water cut-off assembly 814, and the fourth water cut-off assembly 815. Within the first adapter channel 8102, the second adapter channel 8103, the third adapter channel 8109, and the fourth adapter channel 8110, the first water-cutting component 812, the second water-cutting component 813, the third water-cutting component 814, and the fourth water-cutting component 815 can respectively open or close these channels. The first filter element 1 can drive the first water-cutting component 812 and the second water-cutting component 813 to open, and the second filter element 3 can drive the third water-cutting component 814 and the fourth water-cutting component 815 to open. This linkage mechanism, where the first filter element 1 and the second filter element 3 respectively drive their corresponding first water-cutting components 812, 813, 814, and 815 to open or close, facilitates easier replacement of the first filter element 1 and the second filter element 3. When the filter needs to be replaced, the corresponding filter can be removed. The water cut-off component can be used to block the adapter channel after the filter is removed to prevent liquid backflow. At the same time, it can also prevent external substances from entering the water circuit board assembly 8 and contaminating it, thus improving the user experience.

[0056] Example 2

[0057] This embodiment discloses a water purification device, which includes the aforementioned water purification circuit.

[0058] The second aspect of this application discloses a water purification device. By using a water purification circuit, the water purification device can prevent residual water in the second filter element 3 from affecting the water quality after long-term soaking inside the second filter element 3. The purified liquid is re-injected into the second filter element 3 to ensure that the water quality is maintained after a period of time.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A water purification system, characterized in that, The water purification system includes: The first filter element (1) is provided with a tap water inlet and a purified water outlet, wherein the tap water inlet is used to connect with an external liquid source; A booster pump, wherein the booster pump is provided with a first inlet end and a first outlet end; The first valve body (2) is provided with a second liquid inlet and a second liquid outlet. The second liquid inlet is connected to the purified water outlet, and the second liquid outlet is connected to the first liquid inlet of the booster pump. The second filter element (3) is provided with a purified water inlet and a pure water outlet, and the purified water inlet is connected to the first liquid outlet end of the booster pump. The second valve body (4) is provided with a third inlet end and a third outlet end. The third outlet end is connected to the first inlet end of the booster pump, and the pure water outlet is connected to the third inlet end and the outside.

2. The water purification circuit according to claim 1, characterized in that, The second filter element (3) is a reverse osmosis membrane filter element. The reverse osmosis membrane filter element is provided with the purified water inlet, the pure water outlet and the wastewater outlet, and also includes a third valve body (5). The third valve body (5) is connected to the wastewater outlet. And / or also includes a third filter element (6), the third filter element (6) having a fourth liquid inlet and a fourth liquid outlet, the pure water outlet being connected to the third liquid inlet and the fourth liquid inlet respectively, and the fourth liquid outlet being used to communicate with the outside; And / or also includes a high-pressure switch (7), the pure water outlet is connected to the high-pressure switch (7), and the high-pressure switch (7) is connected to the third liquid inlet and the outside.

3. The water purification circuit according to claim 1, characterized in that, It also includes a water circuit board assembly (8), the first filter element (1) and the second filter element (3) are detachably disposed on the water circuit board assembly (8), and the first valve body (2) and the second valve body (4) are both disposed on the water circuit board assembly (8).

4. The water purification circuit according to claim 3, characterized in that, The water circuit board assembly (8) is provided with a first inlet channel (8101), a first adapter channel (8102), a second adapter channel (8103), a second outlet channel (8105), a second inlet channel (8106), a third inlet channel (8107), and a fourth inlet channel (8108). The first adapter channel (8102) and the second adapter channel (8103) are adapted to the first filter element (1). The portion of the first filter element (1) with a tap water inlet extends into the first adapter channel (8102), and the portion of the first filter element (1) with a purified water outlet extends into the second adapter channel (8108). Within 8103), the first liquid inlet channel (8101) is connected to the first adapter channel (8102), the second liquid outlet channel (8105) is connected to the second adapter channel (8103), the first valve body (2) is connected to the second liquid outlet channel (8105) and the second liquid inlet channel (8106) respectively, the third liquid inlet channel (8107) is connected to the second liquid inlet channel (8106) and the first liquid inlet end of the booster pump respectively, and the fourth liquid inlet channel (8108) is connected to the third liquid inlet channel (8107) and the third liquid outlet end of the second valve body (4) respectively.

5. The water purification circuit according to claim 4, characterized in that, The water circuit board assembly (8) is further provided with a third adapter channel (8109), a fourth adapter channel (8110), a fifth adapter channel (8111), a third liquid outlet channel (8112), a fourth liquid outlet channel (8113), and a fifth liquid inlet channel (8114). The second filter element (3) is a reverse osmosis membrane filter element. The reverse osmosis membrane filter element is provided with a purified water inlet, a pure water outlet, and a wastewater outlet. The portion of the reverse osmosis membrane filter element with the purified water inlet extends into the third adapter channel (8109), and the portion of the reverse osmosis membrane filter element with the pure water outlet extends into the fourth adapter channel (8110). The reverse osmosis membrane filter element is provided with... The wastewater outlet extends into the fifth adapter channel (8111). The third liquid inlet channel (8107) is connected to the first liquid outlet and the third adapter channel (8109) respectively. The fourth adapter channel (8110) is connected to the third liquid outlet channel (8112). The system also includes a high-pressure switch (7). One end of the high-pressure switch (7) is connected to the third liquid outlet channel (8112), and the other end of the high-pressure switch (7) is connected to the fourth liquid outlet channel (8113). The fourth liquid outlet channel (8113) is used to communicate with the outside world. The fifth liquid inlet channel (8114) is connected to the third adapter channel (8109).

6. The water purification circuit according to claim 5, characterized in that, It also includes a third filter element (6), and the water circuit board assembly (8) is provided with a sixth liquid inlet channel (8115). The third filter element (6) is connected to the sixth liquid inlet channel (8115), and the sixth liquid inlet channel (8115) is connected to the fourth liquid outlet channel (8113).

7. The water purification circuit according to claim 4, characterized in that, The water circuit board assembly (8) is also provided with a first liquid outlet channel (8104), which is connected to the second adapter channel (8103).

8. The water purification circuit according to claim 3, characterized in that, It also includes a third filter element (6) and a high-pressure switch (7). The water circuit board assembly (8) includes a first water circuit board assembly (81) and a second water circuit board assembly (82). The second water circuit board assembly (82) is disposed on the first water circuit board assembly (81). The first filter element (1), the first valve body (2), the second filter element (3), the second valve body (4) and the high-pressure switch (7) are all disposed on the first water circuit board assembly (81). The third filter element (6) is disposed on the second water circuit board assembly (82). The third filter element (6) is provided with a fourth liquid inlet end and a fourth liquid outlet end. The fourth liquid outlet end is used to communicate with the outside. The pure water outlet is connected to the high-pressure switch (7). The high-pressure switch (7) is connected to the third liquid inlet end and the fourth liquid inlet end respectively.

9. The water purification circuit according to claim 8, characterized in that, The first water circuit board assembly (81) includes a water circuit board body (811), a first water cut-off assembly (812), a second water cut-off assembly (813), a third water cut-off assembly (814), a fourth water cut-off assembly (815), and a water quality detection assembly (816). The water circuit board body (811) is provided with a first adapter channel (8102), a second adapter channel (8103), a third adapter channel (8109), and a fourth adapter channel (8110). The first water cut-off assembly (812), the second water cut-off assembly (813), the third water cut-off assembly (814), and the fourth water cut-off assembly (815) are respectively located in the first adapter channel (8102) and the second adapter channel (8103). Within the third adapter channel (8109) and the fourth adapter channel (8110), the first water-cutting component (812), the second water-cutting component (813), the third water-cutting component (814), and the fourth water-cutting component (815) can respectively open or block the first adapter channel (8102), the second adapter channel (8103), the third adapter channel (8109), and the fourth adapter channel (8110). The first filter element (1) can drive the first water-cutting component (812) and the second water-cutting component (813) to open, and the second filter element (3) can drive the third water-cutting component (814) and the fourth water-cutting component (815) to open.

10. A water purification device, characterized in that, The water purification device includes: The water purification system according to any one of claims 1 to 9.

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