Water purifier

Abstract

The utility model discloses a water purifier, belongs to the field of water treatment, solves the problem that a water pump in the water purifier is frequently started and stopped when water inlet and water outlet are not matched in the prior art, and mainly adopts the technical scheme that the water purifier comprises a filter unit, a water inlet pipe and a water outlet pipe which are respectively communicated with the filter unit, the water outlet pipe is communicated with a multi-way pipe, the multi-way pipe is at least provided with a first purified water outlet and a second purified water outlet, the first purified water outlet is provided with a flow diverter valve with adjustable flow, and the flow diverter valve is provided with a first water outlet and a second water outlet. The water purifier is mainly used for achieving stable work of the water pump in the water purifier when water inflow and outflow are not matched.

Description

Technical Field

[0001] This application relates to the field of water treatment technology, and in particular to a water purifier. Background Technology

[0002] Water purifiers are essential for healthy drinking water in modern households. With industrialization and increasing environmental pollution, water resources have become contaminated to varying degrees. Water may contain harmful substances such as bacteria, viruses, heavy metals (e.g., lead, mercury), pesticide residues, and organic chemicals. Traditional water treatment methods, such as boiling, can only kill some bacteria and viruses, and their effectiveness in removing other pollutants is limited. Water purifiers have changed this situation. They employ various advanced filtration technologies, such as activated carbon adsorption, ultrafiltration, and reverse osmosis. Activated carbon effectively removes odors, residual chlorine, and some organic pollutants from water; ultrafiltration filters out large molecular impurities and bacteria; and reverse osmosis technology can precisely intercept heavy metal ions and tiny salt ions, providing people with purer and safer drinking water, meeting the growing demand for high-quality, healthy drinking water.

[0003] When connecting existing water purifiers to water dispensers, there is a mismatch between the required water flow rate of the dispenser and the water purifier. If the water dispenser has a flow-limiting valve, the pressure switch inside the purifier will frequently detect water pressure changes, causing the water pump to operate frequently and affecting the product's lifespan. Furthermore, existing water purifiers do not have a dedicated interface for water dispensers. Installing a water dispenser requires cutting the RO water outlet pipe of the original RO water purifier and assembling a quick-connect T-joint, which disrupts the original water circuit structure of the purifier. Therefore, the uncertainty during the installation process increases the risk of leakage. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art where the water pump inside the water purifier frequently starts and stops when the inlet and outlet water are mismatched, this application provides a water purifier that can achieve stable operation of the water pump inside the water purifier when the inlet and outlet water are mismatched.

[0005] To achieve the above objectives, this application adopts the following technical solution: a water purifier, including a filter unit, and an inlet pipe and an outlet pipe respectively connected to the filter unit. The outlet pipe is connected to a multi-port pipe, which is provided with at least a first purified water outlet and a second purified water outlet. The first purified water outlet is provided with a flow diversion valve with adjustable flow rate, and the flow diversion valve is provided with a first outlet and a second outlet.

[0006] After adopting the above technical solution, this application has the following advantages: The second outlet of this solution, which flows out through the flow diversion valve, is specifically used to connect to the water dispenser. The water flow from the second outlet is stable and matches the inlet flow requirements of the water dispenser. This avoids the need to cut the original RO water outlet pipe and assemble a quick-connect tee when installing the water dispenser, as is the case with existing water purifiers. It does not require damaging the original water circuit structure of the water purifier, reducing the risk of leakage due to operational uncertainties. Moreover, by setting an adjustable flow diversion valve at the first purified water outlet of the multi-port pipe, the purified water flow to the water dispenser can be effectively adjusted to match the required flow of the water dispenser. This avoids the water pressure switch inside the water purifier frequently detecting water pressure changes due to flow mismatch, thereby reducing the frequent operation of the water pump. This helps to extend the service life of the water pump and the entire water purifier, reduces the losses and maintenance costs caused by frequent start-stop, and improves the overall performance and durability of the product.

[0007] Furthermore, it also includes a wastewater pipe, and the first outlet is connected to the wastewater pipe through a first pipeline so that the water from the first outlet flows into the wastewater pipe, and a check valve is provided on the first pipeline.

[0008] By adopting the aforementioned technical solution, the first water outlet is connected to the wastewater pipe, so that after the total water output of the water purifier meets the water output required by the second water outlet for the user, the excess water output flows from the first water outlet into the wastewater pipe, thus balancing the total water inflow and outflow of the water purifier, avoiding frequent start-stop of the water pump in the water purifier, and extending the service life of the water purifier. The function of the check valve is to prevent wastewater in the wastewater pipe from flowing back to the first water outlet.

[0009] Furthermore, the first outlet is connected to the inlet pipe via a second pipe so that the water from the first outlet flows into the inlet pipe, and a check valve is provided on the second pipe.

[0010] Using the aforementioned technical solution, the water from the first outlet is connected to the inlet pipe through the second pipe, ensuring that the total water output of the water purifier meets the user's requirement for the second outlet pipe. This balances the total inlet and outlet water output of the water purifier, preventing frequent start-stop of the water pump and extending the lifespan of the water purifier. It also allows water that might otherwise be discharged or treated separately to re-enter the inlet for further filtration, maximizing water resource utilization and avoiding unnecessary waste. Furthermore, while maintaining a balance between the total inlet and outlet water output, it also improves the water quality at the inlet, reduces the filtration pressure on the filter unit, and extends the overall lifespan of the water purifier. The check valve prevents wastewater from flowing back to the first outlet.

[0011] Furthermore, it also includes a pressure tank. The first water outlet is connected to the pressure tank through a third pipeline so that the water from the first water outlet flows into the pressure tank. A check valve is provided on the third pipeline. The water outlet of the pressure tank is connected to the second clean water outlet through a fourth pipeline, and a check valve is provided on the fourth pipeline.

[0012] By employing the aforementioned technical solution, a pressure tank is installed, and a third pipeline connects the first outlet to the pressure tank. This ensures that the total water output of the water purifier meets the user's demand for the second outlet, balancing the total inflow and outflow. This prevents frequent pump starts and stops, extends the purifier's lifespan, and allows some excess water to be stored in the pressure tank. Furthermore, the water pressure generated by the pressure tank maintains a balanced flow rate in the outlet pipe. When only a small amount of water is used at the first outlet, the pressure switch in the purifier is not triggered, and only water from the pressure tank is used. Under normal flow conditions, excess water is stored in the pressure tank, reducing water waste.

[0013] Furthermore, the flow diversion valve is an electrically controlled flow diversion valve or a manually operated flow diversion valve.

[0014] Using the aforementioned technical solution, the electrically controlled flow diversion valve can achieve extremely precise flow regulation based on a preset program and real-time monitored data, such as the actual water usage of the water dispenser and the water flow rate of the water purifier. It can be accurate to a specific flow rate value, ensuring that the water flow rate delivered to the water dispenser is always perfectly matched to the dispenser's needs, minimizing problems such as frequent pump start-ups and shutdowns due to flow deviations, and guaranteeing stable and efficient operation of the water purifier.

[0015] The manual flow diverter valve is easy to operate. Users can directly adjust the flow rate by manually changing the valve opening based on actual observation and their own water needs. This intuitive operation method does not require complex electronic equipment knowledge or professional operating skills. Even in special circumstances such as the absence of power supply, it can still effectively regulate the flow rate, ensuring normal water flow between the water purifier and the water dispenser, thus enhancing the adaptability and reliability of the equipment in different environments.

[0016] Furthermore, the inlet pipe is equipped with an inlet pump capable of adjusting the inlet flow rate; or, the inlet pipe is equipped with an inlet solenoid valve capable of adjusting the inlet flow rate; or, it also includes a wastewater pipe, the wastewater pipe being equipped with a wastewater solenoid valve capable of adjusting the outlet flow rate.

[0017] By employing the aforementioned technical solution, the inlet pump or inlet solenoid valve can flexibly adjust the appropriate water flow rate according to the actual operating status of the water purifier, such as different water demand, thus achieving precise control of the inlet flow rate. When a large amount of water is not needed, the water supply of the inlet pipe can be appropriately reduced; when a large amount of water is needed, the water supply of the inlet pipe can be appropriately increased. This not only avoids water waste but also matches the total inlet and outlet water volumes, preventing frequent start-stop of the water purifier's pump and extending the overall service life of the water purifier.

[0018] The wastewater solenoid valve can flexibly adjust the appropriate drainage flow rate according to the actual operating status of the water purifier, such as different water demand, and precisely control the wastewater discharge flow rate. By adjusting the wastewater solenoid valve, the wastewater discharge volume in the wastewater pipe can be directly adjusted, thereby adjusting the inlet flow rate of the water purifier and maintaining a balance between the inlet and outlet flow rates. This avoids frequent start-stop cycles of the water pump and extends the service life of the water purifier.

[0019] Furthermore, a pressure sensor is provided on the water outlet pipe, and the pressure sensor is located between the multi-port pipe and the filter unit; or, the first purified water outlet is provided with a first pressure switch, and the second purified water outlet is provided with a second pressure switch.

[0020] By employing the aforementioned technical solution, the pressure sensor detects different pressures at the outlet and sends the pressure signal to the inlet pump, inlet solenoid valve, or wastewater solenoid valve for adjustment. This ensures that the inlet flow matches the corresponding water volume, maintaining a flow balance at both ends of the water purifier. This allows the water pump in the water purifier to operate stably, avoiding frequent start-stop cycles and extending the overall service life of the water purifier. When it is necessary to distinguish between the operating water pressure (pressure value) of the water purifier's own faucet pipe and the operating water pressure (pressure value) when the water purifier is used with a water dispenser, and the operating flow rates of the two are different, feedback control of the inlet pump, inlet solenoid valve, or wastewater solenoid valve is required. This involves increasing or decreasing the inlet flow rate of the inlet pump or inlet solenoid valve, or increasing or decreasing the drainage flow rate of the wastewater solenoid valve. At least two pressure switch components can be detected by a single pressure sensor. Different operating pressures can determine which water circuit is open, reducing the number of components and improving detection accuracy.

[0021] Pressure switches are installed at both the first and second purified water outlets, enabling independent and precise flow monitoring of the water flow from these two outlets. When different pressure switches are activated, corresponding signals are transmitted to the inlet pump, inlet solenoid valve, or wastewater solenoid valve for adjustment. This increases or decreases the inlet flow rate of the inlet pump or inlet solenoid valve, or increases or decreases the outlet flow rate of the wastewater solenoid valve, ensuring that the inlet end matches the appropriate inlet volume. This maintains a flow balance at both ends of the water purifier, ensuring stable operation of the pump, avoiding frequent start-stop cycles, and extending the overall lifespan of the water purifier.

[0022] Furthermore, the first outlet is provided with a quick connector with a check valve; or, the first outlet is provided with a quick connector, and the outlet end of the quick connector is detachably connected with a plug.

[0023] By employing the aforementioned technical solution, in practical applications, an adjustable-flow inlet pump, inlet solenoid valve, or wastewater solenoid valve ensures a balance between the flow rate of purified water entering the water dispenser and the flow rate at the water purifier's outlet. This allows for situations where the first outlet does not need to be connected to a wastewater pipe or pressure tank, and only the second purified water outlet is used to meet simple daily water needs. In this case, installing a plug can seal the first outlet, preventing external impurities from entering the outlet and connected piping, ensuring internal cleanliness and hygiene. It also allows the entire water circuit structure of the water purifier to be flexibly adjusted according to different user preferences and actual needs, adapting to more diverse usage methods and improving the equipment's versatility.

[0024] Furthermore, the second outlet is provided with a quick connector with a check valve; or, the second outlet is provided with a quick connector, and the outlet end of the quick connector is detachably connected with a plug.

[0025] By adopting the aforementioned technical solution, a quick-connect coupling with a check valve is installed at the second water outlet, greatly facilitating the connection with external water-using equipment such as water dispensers. The quick-connect coupling allows for rapid insertion and removal, eliminating the need for complex tools and cumbersome procedures when installing or replacing the water dispenser, saving time and effort and improving ease of use. Simultaneously, the check valve effectively prevents water or other substances from flowing back into the water purifier, avoiding contamination of the purified water inside the purifier. This ensures that the purified water output from the purifier consistently meets safety and hygiene standards, and also helps maintain the stable operation of the internal water system of the purifier, reducing the potential for malfunctions caused by backflow.

[0026] The quick-connector simplifies connection to external devices, while the detachable plug at the outlet provides users with greater flexibility. When external connections are not needed, the plug can be installed to prevent dust and impurities from entering the outlet and piping, keeping the internal water system clean and avoiding potential water contamination risks. When connecting to devices like water dispensers, simply remove the plug for quick and easy connection. This simple and convenient operation allows the water purifier to easily switch between different usage modes to meet varying needs.

[0027] Furthermore, the second purified water outlet is connected to an electrically controlled water faucet, and a solenoid valve is provided between the electrically controlled water faucet and the multi-way pipe; or, the second purified water outlet is connected to a mechanical water faucet.

[0028] By adopting the aforementioned technical solution, the electronically controlled water faucet, combined with a solenoid valve, enables users to precisely control water usage. Users can adjust the water flow rate and mode (such as metered or continuous flow) to meet different usage scenarios. For example, when brewing beverages, users can precisely control the water flow to achieve the optimal ratio, or conveniently adjust the water flow intensity for daily washing and grooming. This greatly improves the convenience and accuracy of use, providing users with a smart water experience.

[0029] Mechanical faucets, with their mature and stable mechanical structure, are less prone to malfunctions such as electronic component failures or software system problems that could prevent normal water flow during long-term use. They offer high stability and can reliably provide water to users for extended periods. Furthermore, mechanical faucets are typically less expensive, and their corresponding adapter components are also relatively inexpensive, reducing the overall manufacturing cost of the water purification system. Attached Figure Description

[0030] The following description, in conjunction with the accompanying drawings, further illustrates this application:

[0031] Figure 1 This is a schematic diagram of a water purifier embodiment 2 of this application;

[0032] Figure 2 This is a schematic diagram of a water purifier embodiment 3;

[0033] Figure 3 This is a schematic diagram of embodiment 4 of a water purifier;

[0034] Figure 4 This is a first schematic diagram of a water purifier embodiment 5;

[0035] Figure 5 This is a second schematic diagram of embodiment 5 of a water purifier;

[0036] Figure 6 This is a third schematic diagram of embodiment 5 of a water purifier;

[0037] Figure 7 This is a schematic diagram of embodiment 6 of a water purifier;

[0038] Figure 8 A schematic diagram of an embodiment 1 of a water purifier equipped with an electronically controlled water faucet;

[0039] Figure 9 This is a schematic diagram of a water purifier embodiment 1 equipped with a mechanical water outlet faucet.

[0040] Figure Descriptions: 1. Filter unit; 2. Inlet pipe; 21. Inlet pump; 22. Inlet solenoid valve; 3. Outlet pipe; 31. Second pipeline; 32. Pressure sensor; 4. Wastewater pipe; 41. First pipeline; 42. Wastewater solenoid valve; 5. Multi-port pipe; 51. First purified water outlet; 52. Second purified water outlet; 53. First pressure switch; 54. Second pressure switch; 6. Flow divider valve; 61. First outlet; 62. Second outlet; 7. Check valve; 8. Pressure tank; 81. Third pipeline; 82. Fourth pipeline; 9. Electrically controlled faucet; 91. Outlet solenoid valve; 10. Mechanical faucet. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0042] The terms "first," "second," etc. (if present) in the specification and claims of this application are used to distinguish similar objects, not to describe a specific order or sequence. Even if "second" is used before a technical feature for distinction, it does not necessarily imply the presence of "first." It should be understood that in this application, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. It should be understood that in this application, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, and Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Containing X, Y, and Z," "Containing X, Y, and Z" means that all three X, Y, and Z are included; "Containing X, Y, or Z" means that one of X, Y, and Z is included; "Containing X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are included.

[0043] The technical solutions of this application will be described in detail below with specific embodiments. The following specific embodiments can be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0044] Example 1:

[0045] like Figures 1 to 9 As shown, this application provides a water purifier, including a filter unit 1, and an inlet pipe 2 and an outlet pipe 3 respectively connected to the filter unit 1. The outlet pipe 3 is connected to a multi-port pipe 5, which is provided with at least a first purified water outlet 51 and a second purified water outlet 52. The first purified water outlet 51 is provided with a flow diversion valve 6 with adjustable flow rate, which is provided with a first outlet 61 and a second outlet 62.

[0046] After adopting the above technical solution, this application has the following advantages: The second outlet 62 of this solution, which flows out through the flow diversion valve, is specifically used to connect the water dispenser. The water flow from the second outlet 62 is stable and matches the water flow requirements of the water dispenser. This avoids the need to cut the original RO water outlet pipe 3 and assemble a quick-connect tee when installing the water dispenser, as is the case with existing water purifiers. It does not require damaging the original water circuit structure of the water purifier and reduces the risk of leakage caused by operational uncertainties. By setting an adjustable flow diversion valve 6 at the first clean water outlet 51 of the multi-port pipe 5 of the outlet pipe 3, the clean water flow to the water dispenser can be effectively adjusted to match the flow required by the water dispenser. This avoids the water pressure switch inside the water purifier frequently detecting water pressure changes due to flow mismatch, thereby reducing the frequent operation of the water pump. This helps to extend the service life of the water pump and the entire water purifier, reduces the losses and maintenance costs caused by frequent start-stop, and improves the overall performance and durability of the product.

[0047] Specifically, both the first purified water outlet 51 and the second purified water outlet 52 are equipped with check valves 7, and the second outlet 62 can be used to connect to the water dispenser. The flow diversion valve 6 is adjustable to distribute different flow rates to the first outlet 61 and the second outlet 62, so that the second outlet 62 connected to the water dispenser always outputs an appropriate flow rate and stabilizes the water pressure in the outlet pipe. In the prior art, when the water purifier transmits an excessively high flow rate to the outlet pipe, the water pressure at the outlet pipe rises because the flow rate received by the water dispenser is lower than the flow rate provided by the outlet pipe. The pressure switch of the water purifier mistakenly thinks that the outlet pipe is blocked and stops supplying water. Then, as the water pressure in the outlet pipe drops after the water dispenser continues to drain, the pressure switch opens again to supply water. This phenomenon may occur dozens of times in a short period of time. The flow diversion valve 6 can avoid this phenomenon and protect the pressure switch of the water purifier.

[0048] Furthermore, the flow diversion valve 6 is an electrically controlled flow diversion valve 6 or a manually operated flow diversion valve 6.

[0049] Using the aforementioned technical solution, the electrically controlled flow diversion valve 6 can achieve extremely precise flow regulation based on a preset program and real-time monitored data, such as the actual water usage of the water dispenser and the water flow rate of the water purifier. It can be accurate to a specific flow rate value, thereby ensuring that the water flow rate sent to the water dispenser is always perfectly matched to the dispenser's needs, minimizing problems such as frequent pump start-ups and shutdowns due to flow deviations, and guaranteeing stable and efficient operation of the water purifier.

[0050] The manual flow diversion valve 6 is easy to operate. Users can directly adjust the flow rate by manually changing the valve opening based on actual observation and their own water needs. This intuitive operation method does not require complex electronic equipment knowledge or professional operating skills. Even in special circumstances such as the absence of power supply, it can still effectively regulate the flow rate, ensuring normal water flow between the water purifier and the water dispenser, thus enhancing the adaptability and reliability of the equipment in different environments.

[0051] Furthermore, the second outlet 62 is provided with a quick connector with a check valve; or, the second outlet 62 is provided with a quick connector, and the outlet end of the quick connector is detachably connected with a plug.

[0052] By adopting the aforementioned technical solution, a quick-connect coupling with a check valve is installed at the second outlet 62, greatly facilitating the connection with external water-using equipment such as water dispensers. The quick-connect coupling allows for rapid insertion and removal, enabling users to easily complete the connection without complex tools or cumbersome procedures when installing or replacing the water dispenser, saving time and effort and improving ease of use. Simultaneously, the check valve effectively prevents water or other substances from flowing back into the water purifier from the water dispenser, avoiding contamination of the purified water inside the purifier. This ensures that the purified water output from the purifier consistently meets safety and hygiene standards and helps maintain the stable operation of the internal water system of the purifier, reducing the potential for malfunctions caused by backflow.

[0053] The quick-connector simplifies connection to external devices, while the detachable plug at the outlet provides users with greater flexibility. When external connections are not needed, the plug can be installed to prevent dust and impurities from entering the outlet and piping, keeping the internal water system clean and avoiding potential water contamination risks. When connecting to devices like water dispensers, simply remove the plug for quick and easy connection. This simple and convenient operation allows the water purifier to easily switch between different usage modes to meet varying needs.

[0054] Furthermore, such as Figure 8 As shown, the second purified water outlet 52 is connected to an electrically controlled water faucet 9, and an outlet solenoid valve 91 is provided between the electrically controlled water faucet 9 and the multi-way pipe 5.

[0055] By adopting the aforementioned technical solution, the electronically controlled faucet 9, paired with a solenoid valve 91, enables users to precisely control water usage. Users can adjust the water flow rate and mode (such as quantitative or continuous flow) as needed to meet different usage scenarios. For example, when brewing beverages, users can precisely control the water flow to achieve the optimal ratio, or conveniently adjust the water flow intensity for daily washing and grooming. This greatly improves the convenience and accuracy of use, providing users with an intelligent water experience.

[0056] The general operating principle of the water purifier is as follows: When the user touches the water outlet button on the electric faucet, the water outlet solenoid valve 91 opens, and the water pressure at the first purified water outlet 51 drops. When the water pressure drops to the pressure switch's activation pressure, an electrical signal is sent to the control unit, at which point the inlet solenoid valve 22 and the inlet pump 21 start operating. When the button is touched again or the metered water flow stops, the water outlet solenoid valve 91 closes, stopping the water flow. The pump continues to operate for a short period until the water pressure at the first purified water outlet 51 rises to the activation pressure, at which point an electrical signal is sent to the control unit, and the inlet solenoid valve 22 and the inlet pump 21 stop working. The second water outlet of this water purifier... 62 quick-connect fittings with check valves are installed. When the water purifier is not connected to the water dispenser, the internal water pressure of the check valve can improve its sealing performance, ensuring that the water inside the product will not leak out. When the water purifier is connected to the water dispenser, the PE pipe connecting the water dispenser and the water purifier is inserted into the quick-connect fitting with the check valve, which opens the check valve and forms a passage. After that, the electrical control unit on the water dispenser controls the opening and closing of the water inlet solenoid valve 22 of the water dispenser. When the water inlet solenoid valve 22 of the water dispenser is open or closed, the working state of the water purifier is the same as the working state when the purified water outlet solenoid valve 91 of the water purifier is open or closed, which can control the start and stop of the operation of the water purifier.

[0057] Understandable, such as Figure 9 As shown, the electrically controlled water tap 9 connected to the second purified water outlet 52 can be replaced with a mechanical water tap 10.

[0058] By adopting the aforementioned technical solution, the mechanical water faucet 10, with its relatively mature and stable mechanical structure, is less prone to problems such as failure to dispense water due to electronic component malfunctions or software system issues during long-term use. It exhibits high stability and can provide users with a stable water supply service for extended periods. Furthermore, the mechanical water faucet 10 typically has a lower cost, and the corresponding adapter components are also relatively inexpensive, which reduces the overall manufacturing cost of the water purifier system.

[0059] Example 2:

[0060] like Figure 1 As shown, based on Embodiment 1, it also includes a wastewater pipe 4. The first outlet 61 and the wastewater pipe 4 are connected by a first pipeline 41 so that the water from the first outlet 61 flows into the wastewater pipe 4, and a check valve 7 is provided on the first pipeline 41.

[0061] By adopting the aforementioned technical solution, the first water outlet 61 is connected to the wastewater pipe 4, so that after the total water output of the water purifier meets the water output required by the second water outlet 3 used by the user, the excess water output flows from the first water outlet 61 into the wastewater pipe 4, thereby balancing the total water inflow and outflow of the water purifier, avoiding frequent start-stop of the water pump in the water purifier, and extending the service life of the water purifier. The function of the check valve 7 is to prevent the wastewater in the wastewater pipe 4 from flowing back to the first water outlet 61.

[0062] Example 3:

[0063] like Figure 2 As shown, based on Embodiment 1, the first outlet 61 and the inlet pipe 2 are connected by a second pipe 31 so that the water from the first outlet 61 flows into the inlet pipe 2, and a check valve 7 is provided on the second pipe 31.

[0064] Using the aforementioned technical solution, the water from the first outlet 61 is connected to the inlet pipe 2 through the second pipe 31, so that the total water output of the water purifier meets the water output required by the second outlet pipe 3 used by the user. This balances the total inlet and outlet water output of the water purifier, avoids frequent start-stop of the water pump in the water purifier, and allows the water that might otherwise be discharged or treated separately to re-enter the inlet of the water purifier for further filtration. This maximizes the utilization rate of water resources, avoids unnecessary waste, and, under the premise of ensuring the balance of the total inlet and outlet water output, also improves the water quality at the inlet, reduces the filtration pressure of the filter unit 1 of the water purifier, and extends the overall service life of the water purifier. The function of the check valve 7 is to prevent wastewater from flowing back to the first outlet 61.

[0065] Example 4:

[0066] like Figure 3 As shown, based on Embodiment 1, it also includes a pressure tank 8. The first water outlet 61 is connected to the pressure tank 8 through a third pipeline 81 so that the water from the first water outlet 61 flows into the pressure tank 8. A check valve 7 is provided on the third pipeline 81. The water outlet of the pressure tank 8 is connected to the second clean water outlet 52 through a fourth pipeline 82. A check valve 7 is provided on the fourth pipeline 82.

[0067] By adopting the aforementioned technical solution, a pressure tank 8 is installed, and the first outlet 61 is connected to the pressure tank 8 via a third pipe 81. This ensures that the total water output of the water purifier meets the water output required by the user's second outlet pipe 3, balancing the total inlet and outlet water flow of the water purifier. This avoids frequent start-stop cycles of the water pump in the water purifier and allows some excess water to be stored in the pressure tank 8. Furthermore, the water pressure generated by the pressure tank 8 maintains a balance between the flow rate in the outlet pipe 3 and the flow rate in the inlet pipe 2. This prevents the pressure switch in the water purifier from being triggered when only a small amount of water is used at the first outlet, allowing only the water in the pressure tank 8 to be used. Under normal flow conditions, some excess water can be stored in the pressure tank 8, reducing waste of filtered water.

[0068] Example 5:

[0069] In one embodiment, such as Figure 4 As shown, the water inlet pipe 2 is equipped with a water inlet pump 21 that can adjust the water inlet flow rate;

[0070] In another embodiment, such as Figure 5 As shown, the water inlet pipe 2 is equipped with a water inlet solenoid valve 22 capable of adjusting the water inlet flow rate; in another embodiment, as... Figure 6 As shown, it also includes a wastewater pipe 4, which is equipped with a wastewater solenoid valve 42 that can adjust the outflow rate.

[0071] By adopting the aforementioned technical solution, the inlet pump 21 or the inlet solenoid valve 22 can flexibly adjust the appropriate water flow rate according to the actual operating status of the water purifier, such as different water demand, to achieve precise control of the inlet flow rate. When a large amount of water is not needed, the water supply of the inlet pipe 2 can be appropriately reduced; when a large amount of water is needed, the water supply of the inlet pipe can be appropriately increased. This not only avoids water waste but also matches the total inlet and outlet water volumes, preventing frequent start-stop of the water purifier's pump and extending the overall service life of the water purifier.

[0072] The wastewater solenoid valve 42 can flexibly adjust the appropriate drainage flow rate according to the actual operating status of the water purifier, such as different water demand, and precisely control the wastewater discharge flow rate. Because adjusting the wastewater solenoid valve 42 directly adjusts the wastewater discharge volume of the wastewater pipe 4, the water pressure at the inlet and outlet of the water purifier is kept balanced, avoiding frequent start-stop of the water pump and extending the service life of the water purifier.

[0073] Specifically, the inlet pump 21 can be a variable frequency inlet pump or a multi-speed adjustable inlet pump, etc.; the inlet solenoid valve 22 and the wastewater solenoid valve 42 can be proportional solenoid valves or adjustable pulse solenoid valves, etc.

[0074] Furthermore, the first outlet 61 is provided with a quick connector with a check valve; or, the first outlet 61 is provided with a quick connector, and the outlet end of the quick connector is detachably connected with a plug.

[0075] By adopting the aforementioned technical solution, in practical application scenarios, the adjustable flow rate of the inlet pump 21, the inlet solenoid valve 22, or the wastewater solenoid valve 42 ensures that the flow rate of purified water entering the water dispenser is balanced with the flow rate at the water purifier's outlet. This allows for situations where the first outlet 61 does not need to be connected to the wastewater pipe or pressure tank, and only the second purified water outlet 52 of the second outlet 62 is used to meet simple daily water needs. In this case, installing a plug or a quick-connect fitting with a check valve can seal the first outlet 61, preventing external impurities from entering the outlet and connected piping, ensuring internal cleanliness and hygiene. This also allows the entire water circuit structure of the water purifier to be flexibly adjusted according to different user preferences and actual needs, adapting to more diverse usage methods and improving the equipment's versatility.

[0076] Example 6:

[0077] like Figures 4 to 6 As shown, based on embodiment 5, the first purified water outlet 51 is provided with a first pressure switch 53, and the second purified water outlet 52 is provided with a second pressure switch 54.

[0078] By adopting the aforementioned technical solution, pressure switches are respectively installed at the first purified water outlet 51 and the second purified water outlet 52, enabling independent and precise flow monitoring of the water flow at these two different outlets. When different pressure switches are opened, the corresponding signals can be transmitted to the inlet pump 21, the inlet solenoid valve 22, or the wastewater solenoid valve 42 for adjustment, increasing or decreasing the inlet flow of the inlet pump 21 or the inlet solenoid valve 22, or increasing or decreasing the drainage flow of the wastewater solenoid valve 42, so that the inlet end matches the corresponding inlet volume, achieving a balance of flow at both ends of the water purifier, ensuring stable operation of the water pump in the water purifier, avoiding frequent start-stop cycles, and extending the overall service life of the water purifier.

[0079]

[0064] Preferably, the inlet pipe 2 is equipped with an inlet pump 21 capable of adjusting the inlet flow rate, and the inlet pipe 2 is equipped with an inlet solenoid valve 22 capable of adjusting the inlet flow rate. The wastewater pipe 4 is equipped with a wastewater solenoid valve 42 capable of adjusting the outlet flow rate. The first purified water outlet 51 and the second purified water outlet 52 are respectively equipped with a first pressure switch 53 and a second pressure switch 54. The first pressure switch 53 and the second pressure switch 54 have different operating pressures, which are used to detect the flow rate changes of the first purified water outlet 51 and the second purified water outlet 52, respectively. At the same time, the inlet solenoid valve 22, the inlet pump 21 and the wastewater solenoid valve 42 of the water purifier can be adjusted for flow rate.

[0080] Example 7:

[0081] like Figures 4 to 6 As shown, based on Embodiment 5, a pressure sensor 32 is provided on the water outlet pipe 3. The pressure sensor 32 is located between the multi-port pipe 5 and the filter unit 1, for example... Figure 7 It is an improvement based on Example 5.

[0082] By employing the aforementioned technical solution, the pressure sensor 32 detects different pressures at the outlet and sends the pressure signal to the inlet pump 21, inlet solenoid valve 22, or wastewater solenoid valve 42 for adjustment. This ensures that the inlet end matches the corresponding water flow, maintaining a balance in the flow rate at both ends of the water purifier. This allows the water pump in the water purifier to operate stably, avoiding frequent start-stop cycles and extending the overall service life of the water purifier. When it is necessary to distinguish between the operating water pressure (pressure value) of the water purifier's own faucet pipe and the operating water pressure (pressure value) when the water purifier is used with a water dispenser, and the operating flow rates of the two are different, feedback control of the flow rate of the inlet pump 21, inlet solenoid valve 22, or wastewater solenoid valve 42 is required. This increases or decreases the inlet flow rate of the inlet pump 21 or inlet solenoid valve 22, or increases or decreases the drainage flow rate of the wastewater solenoid valve 42. At least two pressure switch components can be detected by a single pressure sensor 32. Different operating pressures can be used to determine which water circuit is open, reducing the number of components and improving detection accuracy.

[0083] In addition to the preferred embodiments described above, this application has other implementation methods. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection claimed in this application.

Claims

1. A water purifier, comprising a filter unit, and an inlet pipe and an outlet pipe respectively connected to the filter unit, wherein the outlet pipe is connected to a multi-port pipe, the multi-port pipe being provided with at least a first purified water outlet and a second purified water outlet, characterized in that, The first purified water outlet is equipped with a flow diversion valve with adjustable flow rate, and the flow diversion valve has a first outlet and a second outlet.

2. A water purifier according to claim 1, characterized in that, It also includes a wastewater pipe, and the first outlet is connected to the wastewater pipe through a first pipeline so that the water from the first outlet flows into the wastewater pipe, and a check valve is provided on the first pipeline.

3. A water purifier according to claim 1, characterized in that, The first outlet is connected to the inlet pipe via a second pipe so that the water from the first outlet flows into the inlet pipe, and a check valve is provided on the second pipe.

4. A water purifier according to claim 1, characterized in that, It also includes a pressure tank, and the first water outlet is connected to the pressure tank through a third pipeline so that the water from the first water outlet flows into the pressure tank. A check valve is provided on the third pipeline. The water outlet of the pressure tank is connected to the second clean water outlet through a fourth pipeline, and a check valve is provided on the fourth pipeline.

5. A water purifier according to claim 1, characterized in that, The flow divider valve is either an electrically controlled flow divider valve or a manually operated flow divider valve.

6. A water purifier according to claim 1, characterized in that, The inlet pipe is equipped with an inlet pump that can adjust the inlet flow rate; or, the inlet pipe is equipped with an inlet solenoid valve that can adjust the inlet flow rate; or, it also includes a wastewater pipe, the wastewater pipe being equipped with a wastewater solenoid valve that can adjust the outlet flow rate.

7. A water purifier according to claim 6, characterized in that, A pressure sensor is provided on the water outlet pipe, and the pressure sensor is located between the multi-port pipe and the filter unit; or, the first purified water outlet is provided with a first pressure switch, and the second purified water outlet is provided with a second pressure switch.

8. A water purifier according to claim 6, characterized in that, The first outlet is provided with a quick connector with a check valve; or, the first outlet is provided with a quick connector, and the outlet end of the quick connector is detachably connected with a plug.

9. A water purifier according to claim 1, characterized in that, The second outlet is provided with a quick connector with a check valve; or, the second outlet is provided with a quick connector, and the outlet end of the quick connector is detachably connected with a plug.

10. A water purifier according to claim 1, characterized in that, The second purified water outlet is connected to an electrically controlled water faucet, and a solenoid valve is provided between the electrically controlled water faucet and the multi-way pipe; or, the second purified water outlet is connected to a mechanical water faucet.

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