Purified drinking system

Abstract

The invention discloses a water purifying and drinking system which comprises a water purifier, a faucet, a water-tank-free pipeline machine, a fresh mineral water path and a flow divider. The water purifier is provided with a raw water inlet and a pure water outlet; the faucet is provided with a pure water inlet which is communicated with the pure water outlet; the water-tank-free pipeline machine comprises a shell, a water path system, an instant heating device and a water outlet pipeline. The fresh mineral water path is communicated with an external fresh mineral water source, a water outlet pipeline and a pure water inlet, the flow divider comprises a valve body upper shell and a valve body lower shell, the valve body upper shell and the valve body lower shell form a water inlet cavity, a backflow cavity and a water outlet cavity, the water outlet cavity can be communicated with the water inlet cavity through the backflow cavity, and the water inlet and the pure water inlet are both communicated with the water outlet cavity. The valve body upper shell and / or the valve body lower shell are / is an integrally-formed component. Different drinking water requirements of users can be met.

Description

Technical Field

[0001] The present invention relates to the technical field, and particularly to a drinking water purification system. Background Art

[0002] Drinking water purification systems are mainly applied in places such as home kitchens and pantry rooms in offices to provide people with safe, healthy, and convenient drinking water and domestic water.

[0003] In the related art, the current drinking water purification systems on the market can only provide pure water, with a single water body, and it is difficult to meet the different drinking water needs of users. Summary of the Invention

[0004] An embodiment of the present application provides a drinking water purification system that can meet the different drinking water needs of users.

[0005] An embodiment of the present application provides a drinking water purification system, including:

[0006] A water purifier, a faucet, a tankless pipeline machine, a fresh mineral water waterway, and a diverter; the water purifier has a raw water inlet and a pure water outlet; the faucet has a pure water inlet, and the pure water inlet is communicated with the pure water outlet; the tankless pipeline machine includes a housing, a waterway system, an instant heating device, and a water outlet pipe. The housing has an inlet and a water outlet nozzle. The waterway system, the instant heating device, and the water outlet pipe are arranged in the housing and are located between the inlet and the water outlet nozzle. The waterway system, the instant heating device, and the water outlet pipe are arranged in sequence in the flowing direction of the water flow; the fresh mineral water waterway communicates with an external fresh mineral water source and the water outlet pipe, and also communicates with the external fresh mineral water source and the pure water inlet; the diverter includes a valve housing, a pressure regulating component, a diversion component, and a one-way guiding member. The valve housing includes a valve body upper shell and a valve body lower shell that are connected to each other. The valve body upper shell and the valve body lower shell define an inlet chamber, a return chamber, and an outlet chamber. The outlet chamber can be communicated with the inlet chamber through the return chamber. The inlet and the pure water inlet are both communicated with the outlet chamber. The valve body upper shell is an integrally formed member, and / or the valve body lower shell is an integrally formed member; the pressure regulating component is arranged in the inlet chamber; the diversion component is arranged in the outlet chamber; the one-way guiding member is arranged in the return chamber..

[0007] In some of these embodiments, the one-way guiding member includes:

[0008] A check body having an input port and an output port, and the check body is used to control the water source to flow from the input port to the output port;

[0009] The mixing guide body is convexly provided with an extension part having a liquid injection port on one side facing the check body. One end of the check body provided with the output port abuts against the extension part to form a mixing cavity, and both the liquid injection port and the output port communicate with the mixing cavity.

[0010] In some embodiments, the check body includes:

[0011] A fixed shell, both the input port and the output port are provided on the fixed shell; and,

[0012] A valve core body, which is movably arranged inside the fixed shell, and the valve core body can open and close the input port according to the pressure difference between the input port and the output port.

[0013] In some embodiments, the valve core body includes:

[0014] A movable opening and closing part; and,

[0015] An elastic reset part, the two ends of which respectively abut against the movable opening and closing part and the fixed shell;

[0016] Wherein, in a state where the water pressure on the input port side is less than or equal to the water pressure on the output port side, the sealing head of the movable opening and closing part abuts against and seals the input port;

[0017] In a state where the water pressure on the input port side is greater than the water pressure on the output port side, the sealing head of the movable opening and closing part is away from the input port and the elastic reset part deforms, so that the input port is communicated with the output port.

[0018] In some embodiments, a first sealing groove is provided on the sealing head, and a check sealing ring is embedded in the first sealing groove.

[0019] In some embodiments, the fixed shell includes:

[0020] A holding inner frame; and,

[0021] A valve seat outer shell, which is sleeved outside the holding inner frame;

[0022] Wherein, the movable opening and closing part is inserted into the holding inner frame, the end of the elastic reset part abuts against the holding inner frame, the input port is provided on the valve seat outer shell, and the output port is provided on the holding inner frame.

[0023] In some embodiments, a second sealing groove is provided on the valve seat outer shell, and an outer sealing ring is embedded in the second sealing groove.

[0024] In some of these embodiments, a holding support arm is provided on the holding inner frame. The holding support arm is located inside the output port. A guiding jack for inserting the movable opening and closing part is provided on the holding support arm. The end of the elastic reset part abuts against the holding support arm.

[0025] In some of these embodiments, the holding support arm protrudes towards the movable opening and closing part and is provided with a limiting boss. The end of the elastic reset part is sleeved on the limiting boss.

[0026] In some of these embodiments, a diversion channel is provided inside the mixing guide body. A drainage slope is provided between the inner wall of the mixing cavity and the inner wall of the diversion channel. The drainage slope extends obliquely from the mixing cavity towards the inner wall of the flow channel of the diversion channel.

[0027] In some of these embodiments, an auxiliary support part protrudes towards the check body on one side of the mixing guide body. One end of the auxiliary support part away from the mixing guide body abuts against the check body.

[0028] Based on the water purification system of the embodiments of the present application, the water purifier supplies water to the tankless pipeline machine and the faucet through a flow divider. The flow divider is provided with a return cavity. In this way, when the water purifier conveys a large flow of water, the water in the outlet cavity can flow back to the inlet cavity through the return cavity, and then can flow back to the water purifier again, reducing the pressure-bearing burden on the flow divider and the tankless pipeline machine, thereby enhancing the stability of the entire water purification system; moreover, the fresh mineral water waterway of the present application can provide mineral water for users through the faucet and the tankless pipeline machine, increasing the versatility of the system. There is no need to additionally set up a water purification device to draw and drink fresh mineral water, reducing costs and occupied space. The flow divider proposed in the embodiments of the present application includes a valve housing, a pressure regulating component and a flow dividing component. Among them, the valve housing includes a valve body upper shell and a valve body lower shell connected to each other. The valve body upper shell and the valve body lower shell define an inlet cavity, a return cavity and an outlet cavity. The outlet cavity can communicate with the inlet cavity through the return cavity. The valve body upper shell is an integrally formed component, and / or the valve body lower shell is an integrally formed component. The pressure regulating component is arranged in the inlet cavity, the flow dividing component is arranged in the outlet cavity, and a one-way guiding member is arranged in the return cavity to prevent the pressure-stabilized water flowing through the inlet cavity from flowing back to the outlet cavity, and to converge and output the excessive water flowing back from the outlet cavity towards the return cavity to the water purifier after stabilizing the pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0030] Figure 1 Schematic diagram of the water circuit of the purified drinking water system according to an embodiment provided by the present invention;

[0031] Figure 2 First structural schematic diagram of the diverter according to an embodiment of the present invention;

[0032] Figure 3 Second structural schematic diagram of the diverter according to an embodiment of the present invention;

[0033] Figure 4 Semi-sectional assembly schematic diagram of the diverter according to an embodiment of the present invention;

[0034] Figure 5 Third assembly schematic diagram of the diverter according to an embodiment of the present invention;

[0035] Figure 6 Fourth assembly schematic diagram of the diverter according to an embodiment of the present invention;

[0036] Figure 7 First partial assembly drawing of the diverter according to an embodiment of the present invention;

[0037] Figure 8 Second partial assembly drawing of the diverter according to an embodiment of the present invention;

[0038] Figure 9 First overall structure diagram of the one-way flow guiding member in the present invention;

[0039] Figure 10 Second overall structure diagram of the one-way flow guiding member in the present invention;

[0040] Figure 11 Overall exploded structure diagram of the one-way flow guiding member in the present invention;

[0041] Figure 12 Third overall structure diagram of the one-way flow guiding member in the present invention;

[0042] Figure 13 Exploded structure schematic diagram of the valve core assembly in the present invention;

[0043] Figure 14 Structural sectional view of the valve core base in the present invention;

[0044] Figure 15 Structural schematic diagram of the pressure regulating elastic member in the present invention;

[0045] Figure 16 is Figure 6 Partial enlarged schematic diagram at position A in;

[0046] Figure 17Schematic cross-sectional view of the flow splitting component in the present invention;

[0047] Figure 18 Schematic structural diagram of a waterless pipeline machine provided by an embodiment of the present application;

[0048] Figure 19 Schematic structural diagram of a waterless pipeline machine provided by an embodiment of the present application (part of the housing is omitted);

[0049] Figure 20 Schematic structural diagram of a waterless pipeline machine provided by an embodiment of the present application (the housing is omitted);

[0050] Figure 21 Front view of a waterless pipeline machine provided by an embodiment of the present application;

[0051] Figure 22 is Figure 21 Cross-sectional schematic view at A-A in

[0052] Explanation of the reference numerals in the drawings:

[0053] 1. Shunt; 11. Valve housing; 1141. Raw water inlet; 1142. Raw water outlet; 1143. Pure water inlet; 1144. First water supply port; 1145. Second water supply port; 1146. Return cavity; 1147. Water inlet cavity; 1148. Water outlet cavity; 1149. Positioning groove; 1151. Discharge port of pressure reduction cavity; 1152. Step limit part; 1153. Air cavity; 1154. Water injection conduit part; 1155. Water injection flow channel; 116. Upper housing of valve body; 117. Lower housing of valve body; 1171. Return guide part; 1172. Guide flow channel; 118. Breather hole; 1191. Limit support column; 1192. Anti-sticking protrusion; 1193. Groove; 1194. Pressure regulating limit table; 13. One-way flow guiding part; 131. Check body; 1311. Input port; 1312. Output port; 1313. Fixed housing; 13131. Valve seat housing; 13132. Inner holding frame; 13133. Material reduction port; 13134. Holding support arm; 13135. Limit boss; 13136. Guide jack; 1314. Spool body; 13141. Movable opening and closing part; 13142. Elastic reset part; 13143. Sealing head; 13144. Check sealing ring; 132. Mixed flow guiding body; 1321. Flow guiding channel; 1322. Positioning protrusion; 133. Extension part; 1331. Liquid injection port; 1332. Mixing cavity; 134. Axial shoulder part; 135. Auxiliary support part; 136. Drainage bottom slope; 137. Outer sealing ring; 14. Pipe joint; 15. Tightening sealing ring; 16. Pressure regulating component; 1611. Liquid cavity; 1612. Water injection diversion hole; 16121. First diversion hole; 16122. Second diversion hole; 1613. Pressure regulating water outlet; 162. Spool component; 1621. Spool limit sleeve; 1622. Spool base; 1623. Valve flap plug; 16231. Valve flap support; 16232. Plug elastic part; 16233. Valve flap clamping groove; 16234. Guide through hole; 1624. Valve flap support beam; 1625. External thread section; 1626. Internal thread section; 163. Pressure regulating elastic part; 1631. Elastic part body; 1632. Clamping protrusion part; 16331. First fastening protrusion; 16332. Second fastening protrusion; 16333. Third fastening protrusion; 1634. Deformation adjustment groove; 1635. Sealing fastening part; 164. Elastic socket hole; 165. Spool sealing ring; 166. Pressure regulating spring; 17. Shunt component; 171. Balance spring; 172. Shunt balance membrane; 1721. Flexible check part; 1722. Flow rate adjustment port; 1724. Membrane through hole; 173. Membrane top cover; 1731. Top cover through hole; 174. Membrane base; 1741. Base through hole;

[0054] 2. Tankless pipeline machine; 21. Housing; 211. Water inlet; 212. Water outlet nozzle; 213. Electric control installation area; 214. Strong electricity installation area; 2141. Waterway installation area; 2142. Instant heating installation area; 215. Installation cavity; 216. Outer shell; 217. Installation bracket; 22. Waterway system; 2211. First water inlet solenoid valve; 2212. Pump assembly; 2213. Flow control pump; 2214. Water pump; 2215. Water quantity sensor; 2216. Flowmeter; 2217. Negative pressure valve; 2218. Check valve; 23. Sterilization device; 24. Electric control device; 25. Instant heating device; 27. Display device; 28. Irradiation lamp; 29. Water outlet pipe; 3. Water purifier; 31. Raw water inlet; 32. Pure water outlet; 33. Fresh mineral water outlet; 4. Faucet; 41. Pure water inlet; 5. Fresh mineral water waterway; 51. Third water inlet solenoid valve.

[0055] The realization, functional features and advantages of the objectives of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0056] To make the objectives, technical solutions and advantages of the present invention clearer, the following will further describe in detail the embodiments of the present application with reference to the accompanying drawings.

[0057] When the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all the implementation manners consistent with the present invention. On the contrary, they are only examples of the devices and methods that are consistent with some aspects of the present invention as detailed in the appended claims.

[0058] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "a plurality of" means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0059] Unless otherwise defined, all the technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0060] The direct drinking water system is mainly applied to places such as the family kitchen and the pantry in the office, providing people with safe, healthy and convenient drinking water and domestic water.

[0061] In the related art, generally in the current direct drinking water systems on the market, the purified water produced by the water purifier is mainly supplied to the pipeline machine for use. However, the pipeline machine can only provide pure water for users. For an instant heating pipeline machine, due to the limitation of its heating power, the amount of water that can be heated is limited. In contrast, the water output of the water purifier is larger, far exceeding the flow rate upper limit of the instant heating device of the pipeline machine. Therefore, in order to cooperate with the high-flow water purifier, the pipeline machine usually needs to be provided with a water tank as a buffer water storage device, and then the water is pumped from the water tank to the heating system for heating by a water pump. The purification efficiency of the water purifier in this kind of direct drinking water system is not only difficult to be fully utilized, but also the volume of the water tank is large, which becomes the key factor restricting the reduction of the overall machine volume. In addition, when users want to drink fresh mineral water, a separate direct drinking device needs to be set up. In this way, users need to switch between different devices to meet different drinking water needs, reducing the convenience of use, and also increasing costs and occupying a certain amount of space.

[0062] Based on this, please refer to Figure 1 , an embodiment of the present application provides a direct drinking water system, which includes a diverter 1, a tankless pipeline machine 2, a water purifier 3, a faucet 4 and a fresh mineral water waterway 5. The water purifier 3 has a raw water inlet 31 and a pure water outlet 32; the tankless pipeline machine 2 has an inlet 211; the faucet 4 has a pure water inlet 41. Among them, the diverter 1 includes a valve housing 11, and the valve housing 11 includes a water inlet chamber 1147, a return chamber 1146 and a water outlet chamber 1148. The water inlet chamber 1147 is connected to the water source and the water purifier 3, so that the water from the external water source enters the water purifier 3 through the diverter 1. The pure water outlet 32 and the inlet 211 are both connected to the water outlet chamber 1148, so that the purified pure water of the water purifier 3 can enter the tankless pipeline machine 2 through the diverter 1. The pure water inlet 41 is directly connected to the pure water outlet 32, so that the purified pure water of the water purifier 3 can directly flow out from the faucet 4. The fresh mineral water waterway 5 is connected to the external fresh mineral water source, the tankless pipeline machine 2 and the pure water inlet 41 to supply fresh mineral water to the tankless pipeline machine 2 and the faucet 4, facilitating users to use the purified pure water and fresh mineral water of the water purifier 3 through different use ends.

[0063] It is understandable that the tankless pipeline machine 2 has an instant heating device 25 for heating pure water. The water purifier 3 purifies a large amount of water. The tankless pipeline machine 2 is limited by the heating efficiency of its instant heating device 25 and has a small water consumption. The water outlet cavity 1148 of the diverter 1 of the present application is connected to the water inlet cavity 1147 through the return cavity 1146. That is to say, when the amount of water flowing from the water purifier 3 to the water outlet cavity 1148 is too large and the water pressure in the water outlet cavity 1148 is relatively high, the water in the water outlet cavity 1148 can flow back to the water inlet cavity 1147 through the return cavity 1146 and then enter the water purifier 3 again through the water inlet cavity 1147. In this way, the pressure borne by the diverter 1 and the tankless pipeline machine 2 can be reduced, and the service life of the diverter 1 and the tankless pipeline machine 2 can be extended.

[0064] Next, the diverter 1 will be introduced with reference to the accompanying drawings.

[0065] Please refer to Figures 2 to 6 As shown, the diverter 1 includes a valve housing 11. The valve housing 11 includes a valve body upper shell 116 and a valve body lower shell 117 which are connected to each other. The connection here should be understood as a detachable connection, such as bolt connection, snap connection, etc., which is convenient for the production and manufacture of the valve body upper shell 116 and the valve body lower shell 117, and can also effectively improve the assembly efficiency and reduce the assembly difficulty. In this embodiment, the valve body upper shell 116 and the valve body lower shell 117 define a water inlet cavity 1147, a return cavity 1146, and a water outlet cavity 1148. The water outlet cavity 1148 can be connected to the water inlet cavity 1147 through the return cavity 1146. The water inlet cavity 1147 and the water outlet cavity 1148 are preferably located on the top side of the return cavity 1146. Moreover, the valve body upper shell 116 is an integrally formed member, and / or the valve body lower shell 117 is an integrally formed member. Then, the valve housing 11 assembled by the valve body upper shell 116 and the valve body lower shell 117 is more stable and has higher structural strength. In this way, when bearing high-pressure fluid, the pressure can be evenly distributed on each part of the valve housing 11, effectively preventing the valve housing 11 from cracking. And when bearing external impact, it can better resist deformation. Then, compared with the way of combining an independent pressure reducing valve and a diverter valve, such a diverter 1 is less likely to loosen and separate, reducing the risk of leakage of the diverter 1, improving the sealing performance of the diverter 1, thereby ensuring that the sealing performance of the water purification and drinking system is more stable during long-term use, and also simplifying the number of pipeline components (such as valves, conduits, etc.) and pipeline connections of the water purification and drinking system, which is conducive to reducing the installation difficulty and subsequent maintenance difficulty of the water purification and drinking system. At the same time, the integrally formed technology can manufacture the valve body through precise molds or processing techniques, and can also better control the dimensional accuracy and shape accuracy of the valve housing 11.

[0066] In this embodiment, specifically, please refer to Figures 2 to 5As shown, the diverter 1 is provided with a raw water inlet 1141, a pure water inlet 1143, a raw water outlet 1142, a first water supply port 1144 and a second water supply port 1145. Among them, the raw water inlet 1141 is used to connect to a water supply pipe to introduce tap water into the water inlet chamber 1147 of the valve housing 11. The raw water outlet 1142 is used to communicate with the water purifier 3 to deliver the stabilized water flowing through the water inlet chamber 1147 and subjected to pressure stabilization treatment to the water purifier 3. The pure water inlet 1143 is used to communicate with the water purifier 3 to introduce the purified water purified by the water purifier 3. The first water supply port 1144 is used to communicate with the tankless pipeline machine 2 to deliver the purified water to the tankless pipeline machine 2. The second water supply port 1145 is used to communicate with the faucet 4 to deliver the purified water to the faucet 4. The raw water inlet 1141 communicates with the water inlet chamber 1147, the raw water outlet 1142 communicates with the return chamber 1146, and the pure water inlet 1143, the first water supply port 1144 and the second water supply port 1145 all communicate with the water outlet chamber 1148. Preferably, the raw water outlet 1142, the pure water inlet 1143 and the second water supply port 1145 are all arranged on the lower valve body housing 117, and the raw water inlet 1141 and the first water supply port 1144 are arranged on the upper valve body housing 116.

[0067] Furthermore, as Figure 4 and Figure 5 shown, the diverter 1 includes a pressure regulating component 16 and a flow dividing component 17. The pressure regulating component 16 is arranged in the water inlet chamber 1147, and the flow dividing component 17 is arranged in the water outlet chamber 1148. In this way, the tap water supplied by the water supply pipe flows into the water inlet chamber 1147 from the raw water inlet 1141. If the water pressure in the urban water supply network changes due to various factors (such as peak and off-peak water use, maintenance and adjustment of the water supply system, etc.), for example, the water pressure is relatively low during the peak water supply stage, and relatively high during the off-peak water use periods such as at night. At this time, the pressure regulating component 16 will be able to reduce the pressure / stabilize the pressure of the tap water flowing into the water inlet chamber 1147 into stabilized water, and then output it to the water purifier 3 through the raw water outlet 1142 for filtration and purification treatment, stabilizing the water pressure of the tap water within a suitable range to avoid the risk of overpressure damage or leakage of the water purifier 3 caused by the high water pressure acting on the filter element, water purification pipeline and other precision components inside the water purifier 3, and improving the service life of the water purifier 3. In addition, the tap water passes through the filter element of the water purifier 3 at a relatively stable flow rate, enabling the filter element to fully absorb impurities such as organic matter and residual chlorine in the tap water, ensuring that the water purifier 3 always maintains the best filtration effect.

[0068] It can be understood that as Figure 5As shown, the water purifier 3 deeply filters and purifies the regulated water to generate pure water, which then flows through the pure water inlet 1143 of the diverter 1 again and into the water outlet chamber 1148. Through the cooperation between the water outlet chamber 1148 and the diverter assembly 17, the pure water can be discharged from the first water supply port 1144 to the tankless pipeline machine 2 and from the second water supply port 1145 to the faucet 4 according to actual deployment. During the diversion of the pure water, the excess pure water inside the water outlet chamber 1148 can flow back to the reflux chamber 1146 under the adjustment of the diverter assembly 17 to form excess water. The reflux chamber 1146 can converge the regulated water that has passed through the pressure regulating assembly 16 and the excess water refluxed by the diverter assembly 17, and output it from the raw water outlet 1142 to the water purifier 3.

[0069] Next, the specific structure of the above-mentioned pressure regulating assembly 16 will be described in detail with reference to the accompanying drawings.

[0070] Specifically, please refer to Figure 4 、 Figure 5 and Figure 6 As shown, the above-mentioned pressure regulating assembly 16 can divide the water inlet chamber 1147 into an air chamber 1153 and a liquid chamber 1611. Specifically, the space formed by the cooperation of the valve body upper shell 116 and the pressure regulating assembly 16 is the air chamber 1153. The pressure regulating assembly 16 is provided with a water injection diversion hole 1612 and a pressure regulating water outlet 1613, and both the water injection diversion hole 1612 and the pressure regulating water outlet 1613 are communicated with the liquid chamber 1611..

[0071] Furthermore, specifically, please refer to Figure 4 、 Figure 5 and Figure 6As shown, an inner wall of a chamber of the air chamber 1153 extends towards the inside of the air chamber 1153 and is provided with a water injection conduit portion 1154 communicating with the raw water inlet 1141. The water injection conduit portion 1154 is inserted into a water injection diversion hole 1612 of the pressure regulating assembly 16. Specifically, a water injection flow channel 1155 communicating with the raw water inlet 1141 is arranged inside the water injection conduit portion 1154. The water injection conduit portion 1154 communicates with the liquid chamber 1611 through the water injection flow channel 1155, and a port of the water injection flow channel 1155 for communicating with the liquid chamber 1611 is a water passing port. A pressure reducing chamber drain port 1151 is arranged on the valve housing 11, so that the liquid chamber 1611 can communicate with the return chamber 1146 through the pressure reducing chamber drain port 1151. Then, the water pressure on the side of the liquid chamber 1611 near the pressure regulating water outlet 1613 is equal to the water pressure in the return chamber 1146, that is, the outlet pressure on the side of the pressure regulating water outlet 1613 of the pressure regulating assembly 16 is equivalent to the water pressure of the stabilized water supplied to the water purifier 3. The water pressure on the side of the liquid chamber 1611 near the water injection diversion hole 1612 is equal to the water pressure of the water supply pipe, that is, the inlet pressure on the side of the water injection diversion hole 1612 of the pressure regulating assembly 16 is the water pressure of the water supply pipe. Since the pressure regulating assembly 16 includes a pressure regulating execution end arranged inside the liquid chamber 1611. Thus, when a pressure difference is formed between the pressure regulating water outlet 1613 and the water injection diversion hole 1612, the pressure regulating assembly 16 can generate a relative displacement along the central axis of the water injection conduit portion 1154 to change the throttling distance between the water passing port and the pressure regulating execution end.

[0072] It can be understood that as Figure 6 shown, the whole process of tap water flowing into the liquid chamber 1611 is as follows: after the tap water flows from the raw water inlet 1141 into the water injection flow channel 1155, it will flow through the water passing port, the water injection diversion hole 1612, the pressure regulating water outlet 1613, the pressure reducing chamber drain port 1151 in sequence and flow towards the return chamber 1146. When the outlet pressure of the pressure regulating assembly 16 increases (such as closing the water purifier 3), the pressure on one side of the pressure regulating water outlet 1613 will drive the pressure regulating assembly 16 to generate a displacement along the central axis of the water injection conduit portion 1154 and towards the side close to the water passing port. Then, the pressure regulating execution end of the pressure regulating assembly 16 moves towards the water passing port, so that the throttling distance between the water passing port and the pressure regulating execution end is reduced, that is, the flow area through which the tap water can pass through between the water passing port and the pressure regulating execution end is reduced until it reaches the position of force balance. When the outlet pressure decreases (such as starting the water purifier 3), the pressure on one side of the water injection diversion hole 1612 will drive the pressure regulating assembly 16 to generate a displacement along the central axis of the water injection conduit portion 1154 and towards the side away from the water passing port. The pressure regulating execution end of the pressure regulating assembly 16 moves away from the water passing port, so that the throttling distance between the water passing port and the pressure regulating execution end is increased until the pressure regulating execution end is in a force balance state again.

[0073] Therefore, as the outlet pressure changes, the pressure regulating component 16 makes corresponding displacements on its own to change the throttling distance between the water passing port and the pressure regulating execution end, achieving the purpose of stabilizing the pressure, thereby ensuring that the pressure supplied to the water purifier 3 remains basically unchanged. The structure is simple and compact, which is more convenient for the subsequent disassembly, assembly and maintenance work of maintenance personnel. In addition, since the water injection conduit portion 1154 is inserted into the water injection diversion hole 1612 of the pressure regulating component 16, not only does the pressure regulating component 16 move more smoothly during the displacement process, but also it can ensure that the pressure regulating execution end moves precisely towards or away from the water passing port, thereby precisely adjusting the throttling distance between the water passing port and the pressure regulating execution end to achieve the purpose of precisely regulating the pressure. During the process of assembling the pressure regulating component 16 to the valve housing 11, the water injection conduit portion 1154 can also perform plug-in positioning on the pressure regulating component 16 to achieve the purpose of improving the assembly efficiency and positioning accuracy.

[0074] The unexpected effect is that, specifically, please refer to Figure 4 and Figure 6 As shown, the tap water flowing in from the raw water inlet 1141 flows into the liquid cavity 1611 under the guidance of the water injection flow path 1155 and does not fill the entire water inlet cavity 1147. This not only enables the pressure regulation response to be more timely and accurate. At the same time, it can further reduce the probability of the tap water leaking out from the assembly position between the pressure regulating component 16 and the valve housing 11, thereby improving the structural stability and reliability of the diverter 1.

[0075] Specifically, please refer to Figure 4 As shown, the pressure regulating component 16 includes a valve core component 162 and an elastic pressure regulating elastic member 163. That is, the pressure regulating elastic member 163 is made of a material that can elastically deform (such as silicone, rubber, etc.). The water injection diversion hole 1612 and the pressure regulating water outlet 1613 are both arranged on the valve core component 162. The valve core component 162 is detachably connected to the pressure regulating elastic member 163 to facilitate the disassembly and assembly of the valve core component 162 and the pressure regulating elastic member 163. When the pressure regulating elastic member 163 is damaged or loses its elasticity during long-term use, the pressure regulating elastic member 163 can be replaced separately, reducing the maintenance cost of the pressure regulating component 16. As Figure 5 As shown, the pressure regulating elastic member 163 is connected between the upper valve body shell 116 and the lower valve body shell 117. Further, when a pressure difference is formed between the pressure regulating water outlet 1613 and the water injection diversion hole 1612, the pressure regulating elastic member 163 can deform, and the valve core component 162 slides relatively along the extension direction of the water injection conduit portion 1154.

[0076] Understandably, when the outlet pressure on the pressure-regulating outlet 1613 side of the valve core assembly 162 increases, under the action of the outlet pressure, the pressure-regulating elastic member 163 undergoes elastic deformation towards the side close to the water-passing port. At the same time, it also cooperates with the valve core assembly 162 to move along the central axis of the water injection conduit portion 1154 and towards the side close to the water-passing port. When the inlet pressure on the water injection diversion hole 1612 side of the valve core assembly 162 decreases, under the action of the outlet pressure and the restoration of the deformation of the pressure-regulating elastic member 163, the pressure-regulating elastic member 163 resets towards the side away from the water-passing port. At the same time, it also cooperates with the valve core assembly 162 to move along the central axis of the water injection conduit portion 1154 and towards the side away from the water-passing port.

[0077] As a preferred way of this embodiment, specifically according to Figure 6 As shown, the valve core assembly 162 includes a valve core limit sleeve 1621 and a valve core base 1622. Among them, a first diversion hole 16121 is provided on the valve core limit sleeve 1621, and a second diversion hole 16122 is provided on the valve core base 1622. The first diversion hole 16121 and the second diversion hole 16122 form the water injection diversion hole 1612. The central axis of the first diversion hole 16121 is collinear with the central axis of the second diversion hole 16122, ensuring that the water injection conduit portion 1154 can sequentially penetrate through the first diversion hole 16121 and the second diversion hole 16122. The pressure-regulating outlet 1613 is provided on the valve core base 1622. Further, as Figure 13 and Figure 14 As shown, the valve core limit sleeve 1621 is sleeved outside the valve core base 1622, and part of the pressure-regulating elastic member 163 is clamped between the valve core limit sleeve 1621 and the valve core base 1622. Preferably, an external thread section 1625 is provided on the valve core base 1622, and an internal thread section 1626 that is threadedly connected to the external thread section 1625 is provided on the valve core limit sleeve 1621. Then, the valve core limit sleeve 1621 and the valve core base 1622 are screwed and fixed, which not only achieves the purpose of detachable connection between the valve core assembly 162 and the pressure-regulating elastic member 163, but also makes the assembly more convenient and efficient.

[0078] Specifically, as Figure 6 shown, the inner diameter dimension of the port at one end of the valve core limit sleeve 1621 close to the pressure-regulating elastic member 163 is greater than the diameter dimension of the valve core base 1622. Then, a clamping space is formed by the cooperation between the end of the valve core limit sleeve 1621 close to the pressure-regulating elastic member 163 and the outer side wall of the valve core base 1622. Further, specifically in combination with Figure 13 、 Figure 14 and Figure 15As shown in the figure, the above-mentioned pressure-regulating elastic member 163 includes an elastic member body 1631 and a clamping protrusion 1632 extending from the elastic member body 1631 towards the clamping space. Among them, both the elastic member body 1631 and the clamping protrusion 1632 extend along the circumferential direction of the valve core base 1622, and one end of the elastic member body 1631 close to the valve core base 1622 and the clamping protrusion 1632 are integrally formed into an elastic socket hole 164. The valve core base 1622 is inserted into the elastic socket hole 164 of the pressure-regulating elastic member 163, and the clamping protrusion 1632 is clamped between the valve core limiting sleeve 1621 and the valve core base 1622. With such a setting, the valve core limiting sleeve 1621 and the valve core base 1622 cooperate to clamp the pressure-regulating elastic member 163, making the connection between the pressure-regulating elastic member 163 and the valve core assembly 162 more stable. Thus, during the process of the pressure-regulating elastic member 163 generating elastic deformation and the valve core assembly 162 moving, the pressure-regulating elastic member 163 and the valve core assembly 162 will not become detached, improving the stability of the pressure-regulating assembly 16 during the working process.

[0079] Further, specifically, please refer to Figure 15 As shown in the figure, a second fastening protrusion 16332 is provided on the clamping protrusion 1632. The second fastening protrusion 16332 is integrally formed with the clamping protrusion 1632, so the second fastening protrusion 16332 is clamped between the clamping protrusion 1632 and the valve core limiting sleeve 1621, thereby increasing the frictional resistance between the clamping protrusion 1632 and the valve core limiting sleeve 1621 and effectively preventing the clamping protrusion 1632 from detaching from the clamping space. Of course, the second fastening protrusion 16332 can also be provided on the valve core limiting sleeve 1621, and the valve core limiting sleeve 1621 and the second fastening protrusion 16332 are integrally formed, which can also increase the frictional resistance between the clamping protrusion 1632 and the valve core limiting sleeve 1621.

[0080] Further, specifically, please refer to Figure 16 As shown in the figure, the clamping protrusion 1632 is further provided with a third fastening protrusion 16333. The third fastening protrusion 16333 is integrally formed with the clamping protrusion 1632, and the third fastening protrusion 16333 is clamped between the clamping protrusion 1632 and the valve core base 1622, thereby increasing the frictional resistance between the clamping protrusion 1632 and the valve core base 1622 and further preventing the clamping protrusion 1632 from detaching from the clamping space. Of course, the third fastening protrusion 16333 can also be provided on the valve core base 1622, and the third fastening protrusion 16333 is integrally formed with the valve core base 1622, which can also increase the frictional resistance between the clamping protrusion 1632 and the valve core base 1622.

[0081] It should be noted that the second fastening protrusion 16332 can be combined with the third fastening protrusion 16333, which can not only better prevent the clamping protrusion 1632 from detaching from the clamping space, but also enable the clamping protrusion 1632 to be assembled more compactly in the clamping space.

[0082] In addition, specifically according to Figure 6 As shown, the pressure regulating assembly 16 further includes a valve core sealing ring 165. The valve core limiting sleeve 1621 and the valve core base 1622 cooperate to form a valve core sealing cavity. The valve core sealing ring 165 is sleeved on the water injection conduit portion 1154 and embedded inside the valve core sealing cavity to better prevent tap water from seeping from between the water injection diversion holes 1612 and the water injection conduit portion 1154 into the air cavity 1153.

[0083] In this embodiment, in order to ensure that the pressure regulating elastic member 163 can be connected between the valve body upper shell 116 and the valve body lower shell 117 more quickly and stably, the inventor provides a preferred method. Specifically, please refer to Figures 2 to 6 As shown, the elastic member body 1631 is snap-fitted between the valve body upper shell 116 and the valve body lower shell 117. Specifically, specifically according to Figure 15 As shown, the valve body lower shell 117 is provided with a housing clamping groove, which extends along the circumferential direction of the valve body lower shell 117. The pressure regulating elastic member 163 extends towards the inside of the housing clamping groove to form a sealing snap-fit portion 1635. The sealing snap-fit portion 1635 extends along the groove length direction of the housing clamping groove, and the sealing snap-fit portion 1635 is inserted into the housing clamping groove. With this setting, not only can it be ensured that the pressure regulating elastic member 163 is more compactly and firmly snap-fitted on the valve housing 11, but also on the premise of facilitating the assembly of the pressure regulating assembly 16, the pressure regulating assembly 16 is more stably installed on the valve housing 11. At the same time, it also ensures the sealing performance of the connection position between the pressure regulating elastic member 163 and the valve housing 11, prevents water from seeping out of the valve housing 11, and also avoids the problem that water penetrates into the air cavity 1153 and causes the components in the air cavity 1153 to rust and fail. It should be noted that the housing clamping groove can also be provided on the valve body upper shell 116, or both the valve body upper shell 116 and the valve body lower shell 117 are provided with housing clamping grooves, which can be set and adjusted according to the structural design and design requirements.

[0084] Furthermore, specifically according to Figure 15As shown, a first fastening protrusion 16331 is provided on the sealing and fastening portion 1635. The first fastening protrusion 16331 is integrally formed with the sealing and fastening portion 1635. Then, the first fastening protrusion 16331 is clamped between the sealing and fastening portion 1635 and the housing card slot, thereby increasing the frictional resistance between the sealing and fastening portion 1635 and the housing card slot, making the sealing and fastening portion 1635 more firmly inserted into the housing card slot and better preventing the sealing and fastening portion 1635 from disengaging from the housing card slot. Of course, the first fastening protrusion 16331 can also be provided on the groove wall of the housing card slot, which can also increase the frictional resistance between the sealing and fastening portion 1635 and the housing card slot.

[0085] As a preferred embodiment of this embodiment, please refer to Figure 15 As shown, a deformation adjustment groove 1634 is provided on the elastic member body 1631. The deformation adjustment groove 1634 has a U-shaped structure, and the groove opening of the deformation adjustment groove 1634 preferably faces the air chamber 1153. As Figure 6 shown, the deformation adjustment groove 1634 is formed by bending the elastic member body 1631 at the part between the valve core base 1622 and the valve housing 11, and the deformation adjustment groove 1634 extends along the circumferential direction of the valve core base 1622. This not only provides enough space for the elastic member body 1631 during the elastic deformation process, but also can provide a larger elastic deformation range within a limited space, increasing the elastic capacity of the pressure regulating elastic member 163.

[0086] As a preferred embodiment of this embodiment, specifically, please refer to Figure 13 As shown, the valve core base 1622 includes a valve flap plug 1623, and the valve flap plug 1623 serves as the pressure regulating execution end of the pressure regulating assembly 16. As Figure 14 shown, a valve flap support beam 1624 extends from the valve flap plug 1623 towards the wall of the liquid chamber 1611, and the valve flap support beam 1624 extends to the body of the valve core base 1622 and is fixedly connected to the body of the valve core base 1622. To ensure that the valve core base 1622 has good structural strength and is also convenient for the production and manufacture of the valve core base 1622, the valve flap plug 1623, the valve flap support beam 1624 and the body of the valve core base 1622 are integrally formed. Among them, the valve flap support beam 1624 can be selected as one, the valve flap support beam 1624 extends along the circumferential direction of the valve flap plug 1623, and a plurality of water flow through holes are uniformly arranged along the circumferential direction of the valve flap plug 1623 on the valve flap support beam 1624, so that the stabilized water can flow through the water flow through holes. Or, the valve flap support beam 1624 is preferably multiple, and the multiple valve flap support beams 1624 are evenly distributed on the circumferential side of the valve flap plug 1623, and two adjacent valve flap support beams 1624 are arranged at intervals, so as to facilitate the stabilized water to flow through the circumferential side of the valve flap plug 1623.

[0087] To avoid rigid contact between the valve flap plug 1623 and the water passing port of the water injection conduit part 1154 and reduce the noise of the diverter 1, please specifically refer to Figure 6 , Figure 13 and Figure 14 As shown, the valve flap plug 1623 includes a valve flap support 16231 and an elastic plug elastic member 16232. The plug elastic member 16232 can be made of silicone material. A valve flap embedding groove 16233 for embedding the plug elastic member 16232 is provided on the valve flap support 16231. The valve flap support 16231 is fixedly connected to the body of the valve core base 1622 through a valve flap support beam 1624.

[0088] In this embodiment, please specifically refer to Figures 4 to 6 As shown, the pressure regulating assembly 16 further includes a pressure regulating spring 166. The pressure regulating spring 166 is located in the air chamber 1153. One end of the pressure regulating spring 166 abuts against the inner wall of the chamber of the air chamber 1153, and the other end of the pressure regulating spring 166 abuts against the valve core assembly 162. When a pressure difference is formed between the pressure regulating water outlet 1613 and the water injection diversion hole 1612, both the pressure regulating elastic member 163 and the pressure regulating spring 166 are deformed.

[0089] On the one hand, during the pressure regulation process, the pressure regulating spring 166 can assist the pressure regulating elastic member 163 to return to the initial position or the equilibrium position after the pressure changes. That is to say, the pressure regulating spring 166 can use its own elastic force to push the pressure regulating elastic member 163 back to a certain position, and cause the valve core assembly 162 to make a corresponding movement, restoring to a state close to the original state, thereby ensuring the stability of the outlet pressure. Moreover, the elastic coefficient of the pressure regulating spring 166 is relatively stable, which helps to more accurately control the deformation amount of the pressure regulating elastic member 163, and thus accurately control the outlet pressure. On the other hand, the pressure regulating spring 166 can share the pressure borne by the pressure regulating elastic member 163 to a certain extent, so as to avoid the problem that when the inlet pressure is too high or the start and stop are frequent, the pressure regulating elastic member 163 alone may cause excessive deformation, fatigue failure, or even damage.

[0090] In addition, the combination of the pressure regulating spring 166 and the pressure regulating elastic member 163 can enable the valve core assembly 162 to respond more quickly to pressure changes. When the pressure changes, the elastic force of the pressure regulating spring 166 and the deformation force of the pressure regulating elastic member 163 can act synergistically to accelerate the movement of the valve core assembly 162, that is, quickly adjust the throttling distance between the water passing port and the pressure regulating execution end, thereby improving the pressure regulating efficiency of the diverter 1.

[0091] Furthermore, please specifically refer to Figures 4 to 6As shown, a pressure regulating and limiting platform 1194 is arranged on the inner wall of the cavity of the air cavity 1153 along the extending direction of the water injection conduit portion 1154. The extending length dimension of the pressure regulating and limiting platform 1194 should be less than the extending length dimension of the water injection conduit portion 1154. The end of the pressure regulating spring 166 is sleeved on the outside of the pressure regulating and limiting platform 1194, achieving the purpose of limiting the pressure regulating spring 166 and improving the positioning accuracy and assembly efficiency of the pressure regulating spring 166 during the assembly process.

[0092] Preferably, specifically in combination with Figures 4 to 6 As shown, the valve core assembly 162 can abut against the pressure regulating and limiting platform 1194 along the central axis of the water injection conduit portion 1154, so that the pressure regulating execution end seals and closes the water passing port. That is, when the valve core assembly 162 moves along the central axis of the water injection conduit portion 1154 and towards the side close to the water passing port, when the valve core limiting sleeve 1621 of the valve core assembly 162 abuts against the pressure regulating and limiting platform 1194, the plug elastic member 16232 of the valve core assembly 162 will also abut against the water passing port of the water injection conduit portion 1154, thereby increasing the bearing area and bearing force of the flow divider 1.

[0093] Furthermore, specifically according to Figure 4 As shown, a breathing hole 118 is also arranged on the valve housing 11. The air cavity 1153 is communicated with the outside of the valve housing 11 through the breathing hole 118, enabling the pressure regulating assembly 16 to generate a relative displacement along the central axis direction of the water injection conduit portion 1154. It can be understood that when the pressure regulating elastic member 163 and the pressure regulating spring 166 deform, the space pressure inside the air cavity 1153 will change. At this time, connecting the air cavity 1153 with the atmospheric pressure through the breathing hole 118 helps to maintain the pressure stability of the air cavity 1153 where the pressure regulating spring 166 is located, thereby avoiding the risk that the pressure difference on both sides of the pressure regulating elastic member 163 exceeds the bearing capacity of the pressure regulating elastic member 163 and causes excessive deformation and rupture, thus improving the service life of the pressure regulating assembly 16 and the flow divider 1. In addition, the pressure in the air cavity 1153 is kept in communication with the external environmental pressure through the breathing hole 118. During the process of reducing / increasing the pressure of tap water, it can well avoid the cavitation phenomenon caused by the pressure dropping below the saturated vapor pressure of tap water, and further avoid the problems of vibration and noise generation of the flow divider 1 due to the existence of bubbles.

[0094] Preferably, specifically according to Figure 4As shown, the breathing hole 118 is provided on the upper housing 116 of the valve body of the valve housing 11, and the central axis of the breathing hole 118 is arranged parallel to the central axis of the water injection conduit portion 1154. With such an arrangement, from the perspective of stability, the consistent direction helps to maintain the balance state of the air chamber 1153. During the working process, when there are minor fluctuations in pressure, the pressure regulating spring 166 will expand and contract according to the pressure change. The position of the breathing hole 118 enables gas to enter and exit in a timely manner, cooperating with the actions of the pressure regulating spring 166 and the pressure regulating elastic member 163 to quickly adjust the internal pressure. From the perspective of the accuracy of pressure regulation, when the breathing hole 118 is in the same direction as the expansion and contraction direction of the pressure regulating spring 166, during the pressure change process, the path of gas entering and exiting the breathing hole 118 is more matched and coordinated with the path of the internal space change caused by the expansion and contraction of the pressure regulating spring 166, which will be able to more accurately control the amplitude of pressure reduction.

[0095] Further, specifically, please refer to Figure 4 As shown, the breathing hole 118 is provided on the side of the upper housing 116 of the valve body close to the edge, and the breathing hole 118 extends along the extension direction of the water injection conduit portion 1154 to the side of the upper housing 116 of the valve body close to the pressure regulating assembly 16. This will effectively ensure that the inner hole wall of the breathing hole 118 is smoother and flatter, making the flow state of the gas more stable when passing through the breathing hole 118, effectively avoiding the unstable phenomenon of local turbulence of the gas, so as to ensure that the air chamber 1153 can more accurately sense the pressure change and more accurately adjust the pressure, improving the accuracy of pressure regulation. Of course, the flat inner hole wall is not easy to accumulate impurities. In some working environments, the fluid may carry tiny particulate impurities, and these impurities are likely to accumulate at the protrusions. Over time, it may cause the blockage of the breathing hole 118. The flat inner hole wall makes it difficult for impurities to adhere and accumulate, effectively ensuring the smoothness of the breathing hole 118, ensuring the normal breathing function of the air chamber 1153, and further ensuring the stable operation of the entire diverter 1.

[0096] As a preferred method of this embodiment, specifically, please combine Figure 7 and Figure 8As shown in the figure, a limit support column 1191 is provided on the valve body lower shell 117 of the valve housing 11. The limit support column 1191 is preferably located directly below the valve flap plug 1623, and the limit support column 1191 protrudes toward the liquid chamber 1611. The pressure regulating execution end of the pressure regulating assembly 16 can abut against the limit support column 1191, so that when the shunt device 1 is in a non-use state or the outlet pressure drops, the pressure regulating execution end of the valve core assembly 162 can be limited, that is, the limit support column 1191 can support the valve core assembly 162. At this time, the throttling distance between the pressure regulating execution end and the water passing port of the water injection flow channel 1155 is the largest. Further, an anti-sticking protrusion 1192 is provided at the end of the limit support column 1191 close to the pressure regulating execution end, so that a gap is formed between the limit support column 1191 and the pressure regulating execution end. This is equivalent to reducing the contact area between the limit support column 1191 and the pressure regulating execution end. It can also be understood that the pressure regulating execution end does not directly contact the end of the limit support column 1191. When scale deposits on the end of the limit support column 1191, the pressure regulating execution end will not stick to the limit support column 1191, effectively preventing the problem of pressure regulation failure of the shunt device 1.

[0097] Further, specifically, please refer to Figure 7 and Figure 8 As shown in the figure, the anti-sticking protrusions 1192 are distributed at the edge position of the end of the limit support column 1191 and extend along the circumferential direction of the limit support column 1191. The anti-sticking protrusions 1192 are preferably formed into an arc-shaped structure by extending along the circumferential direction of the limit support column 1191. Then, when the tap water flows through the limit support column 1191, it can automatically clean the end of the limit support column 1191, reducing the probability of scale deposition at the end of the limit support column 1191.

[0098] It should be noted that the anti-sticking protrusions 1192 can also be provided on the pressure regulating execution end, that is, the anti-sticking protrusions 1192 are provided on the valve flap support 16231 of the valve flap plug 1623.

[0099] Preferably, a groove 1193 is further provided at the end of the limit support column 1191, and the anti-sticking protrusion 1192 is located on the side of the groove 1193. With this setting, it is equivalent to effectively increasing the gap distance between the limit support column 1191 and the pressure regulating execution end, thereby further preventing the pressure regulating execution end from sticking to the limit support column 1191 and improving the pressure regulation stability of the shunt device 1.

[0100] Further, as shown in Figure 16As shown, at least one through hole 16234 is provided on a side wall of the valve flap support 16231 close to the limit support column 1191. This not only facilitates the embedding of the plug elastic member 16232 in the valve flap embedding groove 16233 of the valve flap support 16231 and the pushing out of the plug elastic member 16232 from the valve flap embedding groove 16233 of the valve flap support 16231, but also further reduces the contact area of the pressure regulating execution end.

[0101] In the above, the water outlet cavity 1148 cooperates with the flow splitting assembly 17 to distribute the purified water purified by the water purifier 3, and the excess purified water inside the water outlet cavity 1148 can flow back to the reflux cavity 1146 under the adjustment of the flow splitting assembly 17 to form excessive water, thereby effectively preventing the large fluctuation range of water pressure during the sudden activation of the tankless pipeline machine 2 and / or the faucet 4, which may cause the water purifier 3 to start and stop frequently.

[0102] Next, the specific structure of the above-mentioned flow splitting assembly 17 will be described in detail with reference to the accompanying drawings.

[0103] Specifically, please refer to Figure 4 As shown, the flow splitter 1 further includes a flow splitting assembly 17. The flow splitting assembly 17 is provided with a flow through hole for guiding the purified water flowing in from the pure water inlet 1143 to pass through the flow splitting assembly 17 and enter the water outlet cavity 1148. Further, the valve housing 11 has a reflux guiding portion 1171. A guiding flow channel 1172 communicating with the reflux cavity 1146 is provided inside the reflux guiding portion 1171. The reflux guiding portion 1171 extends inwardly toward the inside of the water outlet cavity 1148, and the reflux guiding portion 1171 is preferably connected to the valve body lower housing 117. The flow splitting assembly 17 is installed in the water outlet cavity 1148 of the valve housing 11, and the flow splitting assembly 17 can abut against the reflux guiding portion 1171. According to the pressure difference formed by the pure water inlet 1143, the first water supply port 1144, and the second water supply port 1145, the flow splitting assembly 17 can generate a relative displacement toward the first water supply port 1144 side, so that the flow splitting assembly 17 is separated from the reflux guiding portion 1171, and then the excessive purified water will be able to flow into the reflux cavity 1146 from the guiding flow channel 1172 to form the above-mentioned excessive water.

[0104] Thus, specifically, please refer to Figure 7 and Figure 8 As shown, when the faucet 4 uses water alone, the purified water flows into the valve housing 11 from the pure water inlet 1143 and directly flows out from the second water supply port 1145. At this time, the flow splitting assembly 17 abuts and fits on the reflux guiding portion 1171 to seal the guiding flow channel 1172, so that the purified water will not flow back to the guiding flow channel 1172.

[0105] When the tankless pipeline machine 2 uses water alone, pure water flows in from the pure water inlet 1143, passes through the water passing holes and enters the water outlet cavity 1148, and finally flows out from the first water supply port 1144 to the tankless pipeline machine 2. At this time, the pressure on the side of the flow splitting component 17 close to the first water supply port 1144 is less than the pressure on the side of the flow splitting component 17 away from the first water supply port 1144, that is, the water pressure formed by the pure water inlet 1143 and the second water supply port 1145 is greater than the water pressure on the side of the first water supply port 1144. The flow splitting component 17 can generate a relative displacement toward the first water supply port 1144, separating the flow splitting component 17 from the return flow guiding portion 1171, and the excess pure water flows back to the guiding flow channel 1172. When the tankless pipeline machine 2 is turned off, the flow splitting component 17 will reset toward the side of the return flow guiding portion 1171, and then the flow splitting component 17 will re-abut on the return flow guiding portion 1171 to re-seal the guiding flow channel 1172. Therefore, the flow splitter 1 can flexibly meet the water flow distribution requirements when the tankless pipeline machine 2 uses water alone, enabling the pure water to meet the water use of the tankless pipeline machine 2 while reasonably handling the excess water volume, without causing waste of water resources, and avoiding the risk of damaging the tankless pipeline machine 2 due to excessive water pressure.

[0106] When the tankless pipeline machine 2 and the faucet 4 use water simultaneously, after flowing into the valve housing 11 from the pure water inlet 1143, a part flows out from the second water supply port 1145 to the faucet 4, and another part passes through the water passing holes and enters the water outlet cavity 1148 and flows out from the first water supply port 1144 to the tankless pipeline machine 2. Since the water pressure on the side of the second water supply port 1145 decreases, the pressure difference between the pressure on the side of the flow splitting component 17 close to the first water supply port 1144 and the pressure on the side of the flow splitting component 17 away from the first water supply port 1144 is not large. At this time, the flow splitting component 17 abuts and fits on the return flow guiding portion 1171, and then the excess pure water will not flow back to the guiding flow channel 1172. In this way, both the tankless pipeline machine 2 and the faucet 4 can use water normally, and the stable operation of the entire pure drinking water system is ensured.

[0107] Thus, when the tankless pipeline machine 2 is turned on, the excess purified water can flow back, which can prevent the water purifier 3 from frequently adjusting its working state due to sudden changes in the water consumption of the tankless pipeline machine 2 (such as the water pressure changes caused by the frequent opening and closing of the tankless pipeline machine 2). For example, without a reflux mechanism, when the tankless pipeline machine 2 is suddenly turned off, the instantaneous change in water pressure may impact the internal structure and working pressure of the water purifier 3. With a reflux mechanism, it can buffer this water pressure change to a certain extent and reduce the pressure of the frequent start and stop of the water purifier 3. In the case of simultaneous water use, a relatively stable water flow distribution state is maintained through the action of the flow splitting component 17. Without the flow splitting component 17, when the faucet 4 and the tankless pipeline machine 2 work simultaneously and the water consumption of one party suddenly changes (such as the sudden closing of the faucet 4), it may cause a large fluctuation in the internal water pressure of the water purifier 3, resulting in the water purifier 3 frequently adjusting its working state. The flow splitting component 17 can maintain a relatively stable water pressure and water flow distribution, reducing the frequent start and stop of the water purifier 3 caused by changes in the external water use situation.

[0108] In some embodiments, specifically according to Figure 4 As shown, the above-mentioned flow splitting component 17 includes a flow splitting balance membrane 172 and a balance spring 171. A membrane through-hole 1724 is provided on the flow splitting balance membrane 172, and the flow-through hole includes the membrane through-hole 1724. Since the flow splitting balance membrane 172 is made of an elastic material (such as silicone, rubber, etc.), the flow-through hole can expand and contract under the action of its own resilience. The balance spring 171 is arranged between the flow splitting balance membrane 172 and the inner cavity wall of the water outlet cavity 1148, and the edge part of the flow splitting balance membrane 172 is clamped between the upper valve body shell 116 and the lower valve body shell 117. Thus, when the water consumption of the tankless pipeline machine 2 is large, the pressure on the side of the flow splitting balance membrane 172 close to the first water supply port 1144 is quite different from the pressure on the side of the flow splitting component 17 away from the first water supply port 1144. The flow-through hole becomes larger under the action of the pressure difference, increasing the amount of purified water flowing through the flow-through hole. When the water consumption of the tankless pipeline machine 2 becomes small, the flow-through hole will shrink automatically, and the amount of purified water flowing through the flow-through hole will decrease accordingly, achieving the purpose of automatically maintaining the pressure difference on both sides of the flow splitting balance membrane 172 and delaying the reset of the flow splitting balance membrane 172. At this time, when there is no purified water flowing through the first water supply port 1144, the flow splitting balance membrane 172 will reset under the action of the deformation recovery of the balance spring 171, thereby reducing the probability of the frequent start and stop of the water purifier 3 in the case of low flow of the tankless pipeline machine 2.

[0109] In this embodiment, specifically according to Figure 17As shown, the flow splitting component 17 further includes a diaphragm top cover 173 and a diaphragm base 174. A top cover through hole 1731 is provided on the diaphragm top cover 173, and a base through hole 1741 is provided on the diaphragm base 174. The flow splitting balance diaphragm 172 is clamped between the diaphragm top cover 173 and the diaphragm base 174. The diaphragm top cover 173 is preferably snap-connected to the diaphragm base 174. Both the top cover through hole 1731 and the base through hole 1741 communicate with the diaphragm through hole 1724. At this time, the top cover through hole 1731, the base through hole 1741, and the diaphragm through hole 1724 form a flow-through hole. One end of the balance spring 171 abuts against the inner cavity wall of the water outlet cavity 1148, and the other end of the balance spring 171 abuts against the diaphragm top cover 173.

[0110] As a preferred mode of this embodiment, specifically, please refer to Figure 17 As shown, the flow splitting balance diaphragm 172 is provided with a flexible check valve portion 1721 provided with a flow rate adjustment port 1722. The flexible check valve portion 1721 protrudes toward the diaphragm top cover 173 side and penetrates through the diaphragm top cover 173. According to the difference between the pressure on the diaphragm top cover 173 side and the pressure on the diaphragm base 174 side, the flexible check valve portion 1721 can control the opening and closing size of the flow rate adjustment port 1722 to adjust the increase variable of the purified water flowing into the water outlet cavity 1148. Then, by utilizing the relatively large deformation of the flexible check valve portion 1721 compared with the flow-through hole, when the water consumption of the tankless pipeline machine 2 is large, the pressure on the side of the flow splitting balance diaphragm 172 near the first water supply port 1144 is quite different from the pressure on the side of the flow splitting component 17 away from the first water supply port 1144, and more purified water can be supplied. The same as the principle of the above-mentioned flow-through hole that can elastically expand and contract, when the water consumption of the tankless pipeline machine 2 becomes small, the flexible check valve portion 1721 will shrink automatically, and the amount of purified water flowing through the flexible check valve portion 1721 will decrease accordingly, achieving the purpose of automatically maintaining the pressure difference on both sides of the flow splitting balance diaphragm 172, and also being able to reduce the probability of frequent start and stop of the water purifier 3.

[0111] It should be noted that the above two methods of setting the elastically expandable and contractible flow-through hole and setting the flexible check valve portion 1721 are selected one by one to reduce the probability of frequent start and stop of the water purifier 3 in the case of low flow of the tankless pipeline machine 2. Of course, the two can also be used in combination.

[0112] In the above, the excess purified water inside the water outlet cavity 1148 can flow back to the reflux cavity 1146 under the regulation of the flow splitting assembly 17. The reflux cavity 1146 can converge the regulated water after passing through the pressure regulating assembly 16 and the excessive water refluxed by the flow splitting assembly 17, and output it to the water purifier 3 from the raw water outlet 1142, so that the water source can be redistributed and utilized inside the drinking water purification system, reducing the waste of the water source. However, when the amount of the excessive water flowing back from the water outlet cavity 1148 to the reflux cavity 1146 is much smaller than the amount of the regulated water transported from the water inlet cavity 1147 to the reflux cavity 1146, that is, the pressure on the side of the reflux cavity 1146 close to the water outlet cavity 1148 is less than the pressure on the side of the reflux cavity 1146 close to the water inlet cavity 1147, this easily causes the regulated water entering the reflux cavity 1146 to flow back into the water outlet cavity 1148, thereby affecting the quality of domestic water and direct drinking water.

[0113] Based on this, a preferred method is also disclosed in the embodiments of the present application. Specifically, please refer to Figure 4 As shown, the flow splitter 1 further includes a one-way flow guiding member 13. The one-way flow guiding member 13 is arranged in the reflux cavity 1146 to prevent the regulated water after passing through the water inlet cavity 1147 from flowing back to the water outlet cavity 1148, and converge the excessive water flowing back from the water outlet cavity 1148 to the reflux cavity 1146 with the regulated water and output it to the water purifier 3. This not only avoids the regulated water after passing through the water inlet cavity 1147 from flowing back to the water outlet cavity 1148 and causing the purified water in the water outlet cavity 1148 to be mixed with the regulated water, but also ensures the quality and quantity of the purified water supplied by the flow splitter 1. At the same time, the pressures of both the water outlet cavity 1148 and the water inlet cavity 1147 are maintained, so that the water flow in the water outlet cavity 1148, the water inlet cavity 1147 and the reflux cavity 1146 can proceed according to the designed direction and pressure conditions, realizing the stability while simplifying the pipeline components and connections of the drinking water purification system.

[0114] The unexpected effect is that the one-way flow guiding member 13 is assembled in the reflux cavity 1146 of the valve housing 11, making the assembly between the one-way flow guiding member 13 and the valve housing 11 more compact. In a drinking water purification system with limited space, such an assembly method has a higher integration degree, saves the occupied space, very effectively simplifies the pipeline layout of the drinking water purification system, and reduces the risk of leakage caused by too many pipeline connections. In addition, it can also prevent the flow splitter 1 and the drinking water purification system from being damaged due to the water hammer phenomenon. It can be understood that when the pressure of the external water supply pipeline suddenly increases, the inertia of the water flow will cause the water hammer effect, generating a very high pressure wave. At this time, the one-way flow guiding member 13 can prevent this high-pressure wave from impacting the one-way flow guiding member 13 reversely, which is beneficial to extending the service life of the flow splitter 1 and reducing the maintenance cost of the flow splitter 1 and the drinking water purification system.

[0115] As a preferred method of this embodiment, specifically, please refer to Figure 9 、Figure 10 and Figure 11 As shown in Figure 11 , the above-mentioned one-way flow guiding member 13 includes a check body 131 and a mixing flow guiding body 132. Among them, the check body 131 has an input port 1311 and an output port 1312. The check body 131 is used to control the water source to flow from the input port 1311 to the output port 1312. It can be understood that the water source refers to the excessive water flowing back from the water outlet cavity 1148 towards the return cavity 1146. A flow guiding channel 1321 is arranged inside the mixing flow guiding body 132. The mixing flow guiding body 132 is convexly arranged towards the side of the check body 131 with an extension part 133 having a liquid injection port 1331. The extension part 133 extends along the circumferential part of the mixing flow guiding body 132 and is arranged at the end of the mixing flow guiding body 132. One end of the check body 131 provided with the output port 1312 abuts against the extension part 133 to form a mixing cavity 1332. At this time, the opening formed by the combination of the mixing flow guiding body 132, the extension part 133, and the check body 131 is the liquid injection port 1331. The liquid injection port 1331 communicates with the mixing cavity 1332, and the output port 1312 communicates with the mixing cavity 1332. The input port 1311 communicates with the water outlet cavity 1148.

[0116] Furthermore, specifically, please refer to Figure 7 and Figure 8 As shown in Figure 8 , the liquid injection port 1331 of the one-way flow guiding member 13 is arranged towards the water inlet cavity 1147, that is, the liquid injection port 1331 is aligned with the water inlet cavity 1147, and the liquid injection port 1331 communicates with the water inlet cavity 1147. Then, the pressure stabilizing water flowing into the return cavity 1146 will flow into the mixing cavity 1332 through the liquid injection port 1331. The input port 1311 of the check body 131 communicates with the water outlet cavity 1148, and the flow guiding channel 1321 communicates with the raw water outlet 1142 of the valve body lower shell 117. Then, the excessive water can only flow into the mixing cavity 1332 from the input port 1311 of the check body 131 and pass through the output port 1312. At this time, the excessive water is mixed with the pressure stabilizing water. After the excessive water is mixed with the pressure stabilizing water, it is guided by the flow guiding channel 1321 towards the raw water outlet 1142 and transported to the water purifier 3. When the pressure in the mixing cavity 1332 is too high, that is, when the pressure on the side of the return cavity 1146 close to the water outlet cavity 1148 is less than the pressure on the side of the return cavity 1146 close to the water inlet cavity 1147, the check body 131 will automatically close under the action of the pressure to prevent the pressure stabilizing water from flowing back to the water outlet cavity 1148.

[0117] It should be added that to ensure that the extension part 133 can abut more stably on the end face of one end of the check body 131 provided with the input port 1311. Specifically, please refer to Figures 7 to 12As shown, an auxiliary support portion 135 is convexly provided on one side of the check body 131 of the hybrid flow guide 132. The auxiliary support portion 135 is preferably distributed opposite to the extension portion 133, and the length dimension of the auxiliary support portion 135 is equal to the length dimension of the extension portion 133. One end of the auxiliary support portion 135 away from the hybrid flow guide 132 abuts against the check body 131. With such a setting, both the auxiliary support portion 135 and the extension portion 133 abut against the check body 131, not only making the force between the hybrid flow guide 132 and the check body 131 more balanced, but also increasing the contact area between the hybrid flow guide 132 and the check body 131, thus ensuring the compactness and stability of the overall structure of the one-way flow guide member 13.

[0118] Preferably, specifically in combination with Figure 7 and Figure 8 As shown, a positioning protrusion 1322 is provided on the outer side wall of the extension portion 133. The extending direction of the positioning protrusion 1322 is the same as the extending direction of the diversion channel 1321, and the positioning protrusion 1322 is located on one side of the liquid injection port 1331. A positioning groove 1149 is provided on the valve housing 11. The positioning groove 1149 is located inside the reflux chamber 1146 and extends along the extending direction of the reflux chamber 1146. When the one-way flow guide member 13 is assembled into the reflux chamber 1146, the positioning protrusion 1322 is inserted into the positioning groove 1149. Through the cooperation between the positioning protrusion 1322 and the positioning groove 1149, the liquid injection port 1331 of the one-way flow guide member 13 can be automatically aligned with the water inlet chamber 1147, that is, the pressure reducing chamber drain port 1151 is aligned with the liquid injection port 1331, and the liquid injection port 1331 fully covers the pressure reducing chamber drain port 1151, so that the regulated water can flow more smoothly through the pressure reducing chamber drain port 1151 and the liquid injection port 1331 and enter the mixing chamber 1332, thereby avoiding the problem of unstable water pressure caused by the regulated water being blocked and generating turbulent flow or eddy current.

[0119] In addition, during the process of assembling the one-way flow guide member 13 into the reflux chamber 1146, it is only necessary to align the positioning protrusion 1322 of the one-way flow guide member 13 and slide it into the positioning groove 1149 inside the reflux chamber 1146, which improves the convenience and efficiency of assembling the one-way flow guide member 13, and also facilitates the disassembly, installation and maintenance of the one-way flow guide member 13 later, improves the efficiency of overhauling the flow divider 1, and also ensures the stability of the flow divider 1 during long-term use. Since the positioning protrusion 1322 is restricted by the positioning groove 1149, it can well prevent the one-way flow guide member 13 from deflecting and displacing in the reflux chamber 1146, ensuring that the liquid injection port 1331 of the one-way flow guide member 13 always aligns with the pressure reducing chamber drain port 1151 of the valve housing 11, reducing the impact and vibration of the valve housing 11 by the regulated water, and thus reducing the noise generated by the flow divider 1 during use.

[0120] Furthermore, specifically in combination with Figure 10 and Figure 11As shown, one end of the mixing guide body 132 close to the extension part 133 is the shoulder end of the mixing guide body 132. The shoulder end and the extension part 133 are misaligned to form a shoulder part 134. Understandably, the cross-sectional dimension of the shoulder end is larger than that of the extension part 133. Then, the shoulder part 134 is the part where the shoulder end and the extension part 133 are connected and the cross-sectional dimension changes. As Figure 8 shown, a stepped limiting part 1152 is provided on the valve housing 11. The stepped limiting part 1152 is located inside the return flow cavity 1146. That is, the inner wall of the channel of the return flow cavity 1146 bulges inward to form the stepped limiting part 1152. The shoulder end of the one-way flow guiding part 13 abuts against the stepped limiting part 1152 of the valve housing 11. Then, the shoulder part 134 of the one-way flow guiding part 13 can enable the mixing guide body 132 to translate in the extending direction of the positioning protrusion 1322.

[0121] In this embodiment, the mixing guide body 132 of the one-way flow guiding part 13 is inserted into the return flow cavity 1146 under the guidance of the positioning groove 1149 until the shoulder part 134 abuts against the stepped limiting part 1152 of the valve housing 11, thereby restricting the movement of the mixing guide body 132 in the extending direction of the return flow cavity 1146 and achieving the purpose of efficient positioning.

[0122] Preferably, specifically in combination with Figure 9 、 Figure 10 and Figure 11 shown, a drainage slope 136 is provided between the inner wall of the mixing cavity 1332 and the inner wall of the flow guiding channel 1321. The drainage slope 136 extends obliquely from the mixing cavity 1332 towards the inner wall of the flow guiding channel 1321. With such a setting, not only can it avoid the unstable phenomenon of large impact force and local turbulence caused by the height difference during the process of the pressure stabilizing water flowing from the mixing cavity 1332 to the flow guiding channel 1321, but also ensure that the pressure stabilizing water sequentially passes through the mixing cavity 1332, the flow guiding channel 1321 at a relatively stable speed and state and is conveyed to the water purifier 3 from the raw water outlet 1142.

[0123] As a preferred mode of this embodiment, specifically in combination with Figure 9 and Figure 10 shown, the check body 131 includes a fixed shell 1313 and a valve core body 1314. The valve core body 1314 is movably arranged inside the fixed shell 1313. The input port 1311 and the output port 1312 are both arranged on the fixed shell 1313. The valve core body 1314 can open and close the input port 1311 according to the pressure difference between the input port 1311 and the output port 1312. Understandably, the water pressure on one side of the input port 1311 is equivalent to the pressure on the side of the return flow cavity 1146 close to the water outlet cavity 1148, and the water pressure on one side of the output port 1312 is equivalent to the pressure on the side of the return flow cavity 1146 close to the water inlet cavity 1147.

[0124] When the water pressure on one side of the input port 1311 is greater than the water pressure on one side of the output port 1312, the valve core body 1314 can open the input port 1311, so that the excessive water flowing back from the water outlet cavity 1148 towards the return cavity 1146 can enter the fixed housing 1313 through the input port 1311, and after flowing through the fixed housing 1313, enter the mixing cavity 1332 from the output port 1312. When the water pressure on one side of the input port 1311 is less than or equal to the water pressure on one side of the output port 1312, the valve core body 1314 will reset to close the input port 1311, then the regulated water entering the mixing cavity 1332 cannot flow back to the water outlet cavity 1148 after flowing through the fixed housing 1313, achieving the purpose of controlling the unidirectional flow of excessive water.

[0125] Preferably, specifically in combination with Figure 11 and Figure 12 As shown, the above-mentioned valve core body 1314 includes a movable opening and closing part 13141 and an elastic reset part 13142. Among them, the elastic reset part 13142 is preferably a spring. Of course, the elastic reset part 13142 can also be selected as a component made of an elastic material (such as rubber material, silica gel material, etc.). The elastic reset part 13142 is preferably sleeved on the movable opening and closing part 13141, and both ends of the elastic reset part 13142 are respectively abutted against the movable opening and closing part 13141 and the fixed housing 1313. Specifically, a spring embedding groove is provided on the movable opening and closing part 13141, and the shape and size of the spring embedding groove are adapted to the shape and size of the elastic reset part 13142. The end part of the elastic reset part 13142 is embedded inside the spring embedding groove to prevent the elastic reset part 13142 from shifting during the deformation process.

[0126] In this way, in the state where the water pressure on one side of the input port 1311 is less than or equal to the water pressure on one side of the output port 1312, the sealing head 13143 of the movable opening and closing part 13141 abuts and seals the input port 1311, effectively preventing the regulated water from flowing through the input port 1311. In the state where the water pressure on one side of the input port 1311 is greater than the water pressure on one side of the output port 1312, the sealing head 13143 of the movable opening and closing part 13141 moves away from the input port 1311 under the action of the pressure, and at the same time squeezes the elastic reset part 13142 to generate deformation, so that the input port 1311 is communicated with the output port 1312. At this time, the excessive water will be able to enter the water outlet cavity 1148 through the input port 1311. It can be understood that when the water pressure on one side of the input port 1311 is less than the water pressure on one side of the output port 1312 again, the sealing head 13143 of the movable opening and closing part 13141 makes a reset movement towards the input port 1311 under the action of the deformation recovery of the elastic reset part 13142, then the sealing head 13143 will automatically abut and seal the input port 1311, preventing the regulated water from flowing through the input port 1311 into the water outlet cavity 1148.

[0127] To ensure the sealing performance between the sealing head 13143 and the input port 1311, please refer specifically to Figure 11 and Figure 12 As shown, a first sealing groove is provided on the sealing head 13143. The first sealing groove extends along the circumferential direction of the sealing head 13143, and a check valve sealing ring 13144 is embedded in the first sealing groove. Under the action of the check valve sealing ring 13144, the sealing performance between the sealing head 13143 and the input port 1311 can be effectively improved. At the same time, it also ensures that the sealing head 13143 of the movable opening and closing part 13141 is in flexible contact with the fixed shell 1313 during the opening and closing process, reducing the wear of the check body 131 during frequent opening and closing, thereby effectively improving the service life of the check body 131 and the one-way guide fluid body.

[0128] Preferably, please refer specifically to Figure 11 and Figure 12 As shown, the above-mentioned fixed shell 1313 includes a valve seat outer shell 13131 and a retaining inner frame 13132. The valve seat outer shell 13131 is sleeved on the outside of the retaining inner frame 13132. The movable opening and closing part 13141 is inserted into the retaining inner frame 13132. The end of the elastic reset part 13142 abuts against the retaining inner frame 13132. The input port 1311 is provided on the valve seat outer shell 13131, and the output port 1312 is provided on the retaining inner frame 13132. When assembling the check body 131, first place the movable opening and closing part 13141 of the valve core body 1314 into the valve seat outer shell 13131, then sleeved the elastic reset part 13142 of the valve core body 1314 on the movable opening and closing part 13141, and finally embed the retaining inner frame 13132 inside the valve seat outer shell 13131, and make the movable opening and closing part 13141 inserted on the retaining inner frame 13132, then the assembly of the check body 131 can be completed. At this time, the sealing head 13143 of the movable opening and closing part 13141 abuts and seals the input port 1311 on the valve seat outer shell 13131, and the elastic reset part 13142 is in a state of compressive deformation. With such a setting, the valve seat outer shell 13131 and the retaining inner frame 13132 can be produced separately, reducing the manufacturing difficulty of the fixed shell 1313, which is beneficial to reducing the manufacturing cost of the fixed shell 1313. At the same time, it also facilitates the assembly of the check body 131, improves the assembly efficiency of the check body 131, and reduces the assembly cost of the check body 131.

[0129] Specifically, please refer to Figure 9, a holding arm 13134 is provided on the holding inner frame 13132. The holding arm 13134 is located inside the output port 1312. That is, the holding arm 13134 extends from the holding inner frame 13132 towards the inside of the output port 1312. A guiding jack 13136 for the plug-in movable opening and closing part 13141 is provided on the holding arm 13134. The shape of the guiding jack 13136 can be selected to be adapted to the shape of the end of the movable opening and closing part 13141. Of course, the shape of the guiding jack 13136 can also be selected to be different from the shape of the end of the movable opening and closing part 13141, but it must be ensured that the side wall of the end of the movable opening and closing part 13141 abuts against the inner hole wall of the guiding jack 13136, so that the movable opening and closing part 13141 can reciprocate linearly along the central axis direction of the guiding jack 13136. Thus, the guiding jack 13136 and the elastic reset part 13142 can ensure that the sealing head 13143 of the movable opening and closing part 13141 accurately resets and abuts against the input port 1311. The end of the elastic reset part 13142 abuts against the holding arm 13134.

[0130] It should be noted here that specifically Figures 9 to 12 As shown, the holding arm 13134 is provided with a limiting boss 13135 protruding towards the movable opening and closing part 13141. The guiding jack 13136 penetrates through the limiting boss 13135, thereby increasing the contact area between the side wall of the end of the movable opening and closing part 13141 and the inner hole wall of the guiding jack 13136. The end of the elastic reset part 13142 is sleeved on the limiting boss 13135. In this way, the limiting boss 13135 and the spring clamping groove provided on the movable opening and closing part 13141 can not only ensure the stable assembly of the elastic reset part 13142 in the fixed shell 1313, but also further prevent the elastic reset part 13142 from shifting during the deformation process.

[0131] Furthermore, specifically according to Figure 11 As shown, in order to reduce the weight of the fixed shell 1313 and the check body 131, and also reduce the production materials of the fixed shell 1313, thereby reducing the production cost of the fixed shell 1313 and the check body 131, at least one material reduction port 13133 is provided on the side wall of the holding inner frame 13132. The shape, size and quantity of the material reduction port 13133 are not limited here, and the shape, size and quantity of the material reduction port 13133 can be set and adjusted according to the structural design and design requirements.

[0132] It should be added that in order to ensure the sealing performance between the valve seat housing 13131 of the fixed shell 1313 and the inner wall of the cavity of the return cavity 1146, specifically in combination with Figures 7 to 12As shown, a second sealing groove is provided on the valve seat housing 13131. The second sealing groove extends along the circumferential direction of the valve seat housing 13131, and an outer sealing ring 137 is embedded in the second sealing groove. Under the action of the outer sealing ring 137, the sealing performance between the fixed housing 1313 of the check body 131 and the inner wall of the return flow cavity 1146 can be effectively improved.

[0133] It should also be supplemented here that in order to firmly install and fix the above-mentioned one-way flow guiding member 13 in the return flow cavity 1146 of the valve housing 11, please refer specifically to Figure 7 and Figure 8 As shown, a pipe joint 14 is assembled at the raw water outlet 1142. The one-way flow guiding member 13 is completely constrained in the return flow cavity 1146 by using the pipe joint 14, and a conduit can also be connected through the pipe joint 14.

[0134] In addition, as shown in Figure 4 、 Figure 7 、 Figure 8 At least one fastening sealing ring 15 can also be arranged between the pipe joint 14 and the one-way flow guiding member 13. On the one hand, the end of the conduit passes through the fastening sealing ring 15, which improves the sealing performance between the conduit and the return flow cavity 1146, effectively preventing the stable pressure water from leaking out from the connection between the raw water outlet 1142 and the pipe joint 14, and also making the conduit more firmly connected to the diverter 1. On the other hand, by using the elasticity of the fastening sealing ring 15, not only is the pipe joint 14 flexibly connected to the one-way flow guiding member 13, but when the pipe joint 14 is assembled to the raw water outlet 1142, the fastening sealing ring 15 undergoes elastic deformation under the extrusion of the pipe joint 14 and the one-way flow guiding member 13. This deformation enables the fastening sealing ring 15 to automatically fill the assembly gap existing between the pipe joint 14 and the one-way flow guiding member 13, and can adaptively change its own shape according to the size and shape of the assembly gap. At the same time, this elastic deformation also enables the fastening sealing ring 15 to compensate to a certain extent for the gap changes caused by factors such as expansion and vibration during the operation of the diverter 1, thereby maintaining the stability of the assembly gap.

[0135] Of course, the pipe joint 14 can also be other quick connectors or quick plug connectors. Similarly, the pipe joint 14 and the above-mentioned fastening sealing ring 15 are also adaptively installed at the raw water inlet 1141, pure water inlet 1143, first water supply port 1144 and second water supply port 1145. The model size of the pipe joint 14 can be appropriately adjusted according to the raw water inlet 1141, pure water inlet 1143, first water supply port 1144 and second water supply port 1145.

[0136] This application also provides a water dispenser without a water tank 2. Please refer to Figures 18 to 20, the tankless pipeline machine 2 includes a housing 21, a water circuit system 22, an instant heating device 25, and a water outlet pipe 29. The housing 21 has a water inlet 211 and a water outlet nozzle 212. Among them, the housing 21 may include a first housing and a second housing, and the first housing and the second housing may be detachably connected by means of snap connection, screw connection, etc. The first housing and the second housing enclose an installation cavity 215. The water circuit system 22, the instant heating device 25, and the water outlet pipe 29 are all installed in the installation cavity 215. The water circuit system 22 is used to supply water to the instant heating device 25. Among them, the tankless pipeline machine 2 further includes an electric control device 24, and the electric control device 24 is used to control the working conditions of the water circuit system 22 and the instant heating device 25. Through preset programs and algorithms, the electric control device 24 can accurately adjust parameters such as water flow rate and water temperature to meet different needs of users.

[0137] It should be noted that the above water inlet 211 and water outlet nozzle 212 may be in the form of pipes integrally formed on the housing 21, or may be in the form of separate components, such as hoses or connectors. Avoidance openings are formed on the first housing and / or the second housing, and the components forming the water inlet 211 and / or the water outlet nozzle 212 can at least partially pass through the avoidance openings and extend into the installation cavity 215 and be connected to other components in the installation cavity 215.

[0138] Please refer to Figure 19 and Figure 20 , in order to optimize the thermal management of the tankless pipeline machine 2 and avoid unnecessary heat transfer superposition between the electric control device 24 and the instant heating device 25, in some embodiments, the installation cavity 215 includes a strong electricity installation area 214 and a weak electricity installation area. In the length direction of the tankless pipeline machine 2, the strong electricity installation area 214 and the weak electricity installation area are arranged at intervals. Among them, the electric control device 24 is installed in the strong electricity installation area 214, and the instant heating device 25 is installed in the weak electricity installation area. Among them, the strong electricity installation area 214 is also the electric control installation area 213 for installing the electric control device 24. It can be understood that the instant heating device 25 requires strong electricity supply, and strong electricity has the characteristics of high voltage and large current; the electric control device 24 requires weak electricity supply, and weak electricity has the characteristics of low voltage and small current. Therefore, in the length direction of the tankless pipeline machine 2, the electric control device 24 and the instant heating device 25 are arranged at intervals, so that electromagnetic interference can be reduced to ensure the stability and reliability of the electric signals of the electric control device 24 when powered on.

[0139] Please refer to Figure 19 and Figure 20, Further, the high-voltage installation area 214 includes a waterway installation area 2141 and an instant heating installation area 2142 arranged in sequence in the length direction. The electric control installation area 213 and the instant heating installation area 2142 are respectively located on both sides of the waterway installation area 2141. This can avoid unnecessary heat transfer superposition between the electric control device 24 and the instant heating device 25. It can be understood that the instant heating device 25 requires high-voltage power supply, and high voltage has the characteristics of high voltage and large current; the electric control device 24 requires low-voltage power supply, and low voltage has the characteristics of low voltage and small current. Therefore, in the length direction of the tankless pipeline machine 2, the electric control device 24 and the instant heating device 25 are arranged at intervals. In this way, electromagnetic interference can be reduced to ensure the stability and reliability of the electrical signals of the electric control device 24 when powered on.

[0140] Since the tankless pipeline machine 2 of the embodiment of the present application is a tankless design, it does not occupy too much space, and the overall volume of the pipeline machine is more compact, and it can be installed in a smaller area, and the installation is more flexible; and because the tankless pipeline machine 2 does not need to store water, there is no need to maintain the water temperature in the water tank, which reduces energy consumption, and can also avoid problems such as easy dirt accumulation, serious odor, and bacteria breeding inside the traditional water tank, ensuring the purity of the outlet water and improving the drinking water quality.

[0141] Please refer to Figure 19 and Figure 20 and Figure 22 , and because it is a tankless design, the waterway system 22 needs to be provided with a first inlet solenoid valve 2211 and a pump assembly 2212. The first inlet solenoid valve 2211 is responsible for controlling the on-off of the water flow, and the pump assembly 2212 is responsible for providing the power of the water flow. It can be understood that the first inlet solenoid valve 2211 and the pump assembly 2212 are relatively large in volume. In the present application, the first inlet solenoid valve 2211 and the pump assembly 2212 are arranged side by side in the length direction of the housing 21, and the outlet pipe 29 is relatively small in volume. In the present application, the instant heating device 25 and the outlet pipe 29 are arranged side by side in the thickness direction of the housing 21, and the first inlet solenoid valve 2211 and the pump assembly 2212 are arranged in the waterway installation area 2141, and the instant heating device 25 and the outlet pipe 29 are arranged in the instant heating installation area 2142. The installation layout provided by the present application can, firstly, enable the waterway system 22 and the instant heating device 25 to be arranged at intervals to avoid the heat generated by the operation of the instant heating device 25 from affecting the operation of the equipment of the waterway system 22; secondly, make the internal structure of the entire housing 21 compact, save space, and be conducive to the miniaturization and light weight of the equipment. For example, if the outlet pipe 29 and the instant heating device 25 are arranged side by side in the length direction of the housing 21, it is easy to make the length of the housing 21 longer; thirdly, it can take into account the maintenance or repair of the equipment of the waterway system 22.

[0142] It should be noted that the first shell and the second shell of the present application are fixedly connected in a surrounding manner in the horizontal direction. After the first shell is disassembled, the devices of the water circuit system 22 and the instant heating device 25 are arranged side by side in the second shell. In this way, the internal devices can be clearly seen at a glance, which is convenient for maintenance or replacement. When installed and used, the second shell is hung on the wall. In this way, it is not necessary to remove the tankless pipeline machine 2 as a whole, but after the first shell is disassembled, the components in the installation cavity 215 can be directly maintained or repaired. Further, based on the installation environment, the back surface of the tankless pipeline machine 2 is attached to the wall. The second shell can be in the form of a cover shell with an opening on the front side, and the first shell forms a cover structure and covers the opening.

[0143] In some embodiments, the pump assembly 2212 may include a flow control pump and a water pump. When the pump assembly 2212 includes a water pump, the water circuit system 22 further includes a negative pressure valve 2217. The negative pressure valve 2217 is arranged in the water circuit installation area 2141. The negative pressure valve 2217 communicates with the first water inlet solenoid valve 2211 and the water pump and is located between the first water inlet solenoid valve 2211 and the water pump. When the water flow in the water circuit system 22 is cut off or the water pump stops working, the negative pressure valve 2217 can prevent negative pressure (i.e., a pressure lower than the atmospheric pressure) from being generated in the pipeline. Negative pressure may cause pipeline rupture, water hammer phenomenon (pressure shock generated due to sudden stop or change of water flow direction) or other damages. The negative pressure valve 2217 can maintain positive pressure in the pipeline or at least prevent the generation of negative pressure, thereby protecting the water pump and other components in the water circuit system 22 from damage. There are various ways for the negative pressure valve 2217 to prevent the generation of negative pressure, such as the method of injecting air, the method of pre-applying pressure, etc. The specific structure and principle of the negative pressure valve 2217 have been publicly known in the related art, and the present application will not elaborate on this.

[0144] Of course, when the pump assembly 2212 is a flow control pump, the negative pressure valve 2217 may not be provided. A flow control pump is a pump that can maintain a constant pressure when the flow rate changes. The flow control pump can accurately control the flow rate and pressure of the water flow to stably transport the fluid state in the pipeline. In some cases, when the water flow in the transport pipeline is cut off, the flow control pump can adjust its output flow rate to keep the fluid pressure in the pipeline within a stable range, thereby avoiding the appearance of negative pressure.

[0145] Please refer to Figures 19 to 20, in some embodiments, the waterway system 22 further includes a flowmeter 2216 installed in the waterway installation area 2141. Among them, the flowmeter 2216 can be arranged between the water inlet 211 and the first inlet solenoid valve 2211; or, arranged between the first inlet solenoid valve 2211 and the water pump; or, arranged between the water pump and the instant heating device 25. The flowmeter 2216 is used to measure the flow rate of the water flow and provide accurate water usage data for the user. By statistically analyzing the data collected by the flowmeter 2216, it can help the user understand the water usage pattern of the tankless pipeline machine 2.

[0146] Please refer to Figures 19 to 20 , in some embodiments, the waterway system 22 further includes a water volume sensor 2215 installed in the waterway installation area 2141, and the water volume sensor 2215 can be arranged between the water inlet 211 and the first inlet solenoid valve 2211; or, arranged between the first inlet solenoid valve 2211 and the water pump; or, arranged between the water pump and the instant heating device 25. The instant heating device 25 is configured to reduce the power or stop working when the value detected by the water volume sensor 2215 is lower than the preset value. The water volume sensor 2215 can monitor the water volume in the waterway system 22 in real time. When the water volume is insufficient, it can stop or reduce the power of the instant heating device 25 in time to prevent the occurrence of dry burning and protect the safety of the equipment. By intelligently controlling the power of the instant heating device 25, the water volume sensor 2215 can achieve the effect of energy saving and reduce the user's electricity cost.

[0147] Please refer to Figures 19 to 20 , in some embodiments, in the flowing direction of the water flow, the first inlet solenoid valve 2211, the negative pressure valve 2217, the water volume sensor 2215, the flowmeter 2216 and the water pump are connected in sequence; among them, the first inlet solenoid valve 2211 and the negative pressure valve 2217 are arranged at intervals in the height direction of the housing 21, and the water volume sensor 2215, the flowmeter 2216 and the water pump are arranged at intervals in the height direction of the housing 21 and are located between the whole formed by the first inlet solenoid valve 2211 and the negative pressure valve 2217 and the whole formed by the instant heating device 25 and the water outlet pipe 29, and the water pump is located below the water volume sensor 2215 and the flowmeter 2216. Components such as the first inlet solenoid valve 2211, the negative pressure valve 2217, the water volume sensor 2215, the flowmeter 2216 and the water pump are partitioned according to functions, making the function of each component clearer. When a fault occurs, the problem can be quickly located, which is convenient for maintenance and repair.

[0148] Please refer to Figure 19 Figure 21, in some of these embodiments, the housing 21 includes an outer shell 216 and a mounting bracket 217. Among them, the outer shell 216 includes the aforementioned first shell and second shell and has a mounting cavity 215; the mounting bracket 217 is fixedly connected to the outer shell 216 and is fixed within the mounting cavity 215. The first water inlet solenoid valve 2211, the negative pressure valve 2217, the water volume sensor 2215, the flow meter 2216, and the water pump are all mounted on the mounting bracket 217. In this way, each component can be first mounted on the mounting bracket 217, and then the mounting bracket 217 can be mounted within the mounting cavity 215, making the assembly process simpler and faster, reducing the installation difficulty and cost. When a certain component fails or needs maintenance, the entire mounting bracket 217 can be taken out, so that the water circuit system 22 can be taken out to observe the location of the fault, facilitating the replacement and maintenance of components.

[0149] Please refer to Figure 22 , in some of these embodiments, the tankless pipeline machine 2 further includes a sterilization device 23. The sterilization device 23 is disposed on the water outlet pipe 29 and sterilizes the water in the water outlet pipe 29. Among them, the sterilization device 23 can be in the form of an ultraviolet sterilizer or an ozone sterilizer, etc. This kind of sterilization device 23 can effectively sterilize without generating chemical residues, thereby reducing environmental pollution. The sterilization device 23 can effectively kill microorganisms such as bacteria and viruses in the water outlet pipe 29, ensure the safety and hygiene of the water quality, and effectively reduce health problems caused by water quality problems.

[0150] Please refer to Figures 20 to 22 , and Figure 8 , in some of these embodiments, the water outlet nozzle 212 is disposed at the bottom of the housing 21; the water inlet end of the instant heating device 25 is located below the instant heating device 25, and the water outlet end is located above the instant heating device 25. Specifically, the water outlet nozzle 212 is located at the bottom of the housing 21, which is convenient for users to draw water, especially more user-friendly for low spaces or for children. And the water inlet end and the water outlet end of the instant heating device 25 are located below and above it respectively, which can improve the utilization rate of space. In detail, since the water outlet nozzle 212 is located at the bottom of the housing 21, the water outlet of the water outlet pipe 29 is provided with the sterilization device 23, and considering the parallel arrangement of the water outlet pipe 29 and the instant heating device 25, therefore, the water inlet end of the water outlet pipe 29 is provided above, so the water inlet end and the water outlet end of the instant heating device 25 are located below and above it respectively, so as to adapt to the arrangement trend of the water outlet pipe 29.

[0151] The layout of the above-mentioned waterway system 22 is also adapted to the waterway direction in the instant heating installation area 2142. Specifically, the water inlet 211 is arranged at the bottom of the housing 21. The first water inlet solenoid valve 2211 and the negative pressure valve 2217 are arranged at intervals in the height direction. The water volume sensor 2215, the flow meter 2216, and the water pump are also arranged at intervals in the height direction. After the water from the water source enters the waterway system 22 through the water inlet 211, it first passes through the first water inlet solenoid valve 2211 and the negative pressure valve 2217. At this time, the water flow moves upward, and then passes through the water volume sensor 2215, the flow meter 2216, and the water pump. At this time, the water flow moves downward, then enters the instant heating device 25, moves upward again, then passes through the water outlet pipe 29 and flows downward, and finally flows out from the water outlet nozzle 212.

[0152] In this application, through reasonable component layout, the space inside the housing 21 can be fully utilized, making the overall device more compact. The water flow can flow smoothly and be heated efficiently, and the components inside the device are convenient for maintenance and repair, improving the practicability of the tankless pipeline machine 2.

[0153] In this application, the first water inlet solenoid valve 2211, the flow control pump, the water volume sensor 2215, and the flow meter 2216 are all installed in the waterway installation area 2141. The instant heating device 25 is installed in the instant heating installation area 2142. And in the length direction of the tankless pipeline machine 2, the waterway installation area 2141 is located between the electric control installation area 213 and the instant heating installation area 2142. That is, in the length direction of the tankless pipeline machine 2, the electric control device 24, the waterway system 22, and the instant heating device 25 are arranged side by side, and a thermal isolation barrier is formed through the waterway system 22 to separate the electric control device 24 and the instant heating device 25. In this way, the thermal energy interaction interference is reduced.

[0154] Please refer to Figure 22 , in some embodiments, the waterway system 22 further includes a check valve 2218. The check valve 2218 is arranged on the water outlet nozzle 212 and prevents the water flow from flowing back in the pipeline, protecting other components in the waterway system 22, such as the water pump, the instant heating device 25, etc., from the impact and damage of the reverse water flow. When the tankless pipeline machine 2 uses the instant heating device 25 to heat the water in the waterway system 22, since the instant heating device 25 heats up rapidly, it is difficult for the instant heating device 25 to heat the water in the waterway system 22 to 100 degrees Celsius. Therefore, the check valve 2218 designed at the water outlet nozzle 212 in the embodiment of this application can play a pressure-bearing role to increase the boiling point of the water in the water outlet pipe 29, so that the water boils. During the boiling process of the water, water vapor can be sorted out in the water outlet pipe 29. And since the water outlet pipe 29 is connected to the water outlet nozzle 212, the water outlet nozzle 212 can discharge the water vapor, so that a stable water column can flow out from the water outlet nozzle 212.

[0155] Please refer to Figure 19and Figure 22 In some embodiments, the tankless pipeline machine 2 further includes an irradiation lamp 28 disposed on the housing 21 and oriented toward the water storage area of the tankless pipeline machine 2, so that the light emitted by the irradiation lamp 28 irradiates the water storage area, which is located below the water outlet 212. The irradiation lamp 28 can illuminate the water storage area, enabling the user to clearly see the water level, water quality, and whether there are impurities in the water storage container even in a dim environment, thus ensuring the accuracy and safety of water intake. In addition, the illumination of the irradiation lamp 28 helps the user more intuitively check the cleanliness of the water storage area and the water outlet 212, thereby reminding the user to clean and maintain in a timely manner to ensure water hygiene.

[0156] Please refer to Figure 21 In some embodiments, the tankless pipeline machine 2 further includes a display device 27 disposed on the housing 21 to display the working information of the tankless pipeline machine 2. The display device 27 can display the working status of the tankless pipeline machine 2 in real time and intuitively, such as water temperature, working status (heating, discharging water, standby, etc.), and possible fault prompts. The user can better understand the working conditions of the device, thereby reasonably arranging the usage time and frequency and avoiding unnecessary energy waste. For example, when the water temperature is low, the required heating time is longer, and the user can arrange other tasks first, avoiding the time wasted waiting for the water temperature to rise.

[0157] In some embodiments, both the display device 27 and the irradiation lamp 28 are installed in the instant heating installation area 2142. In this way, the positions of the display device 27 and the irradiation lamp 28 can be close. Since the positions of the display device 27 and the irradiation lamp 28 are close, in the embodiments of the present application, the display device 27 is electrically connected to the irradiation lamp 28. The display device 27 is also used to supply power to the irradiation lamp 28 and directly control the opening and closing of the irradiation lamp 28, which helps to simplify the wiring complexity inside the tankless pipeline machine 2.

[0158] Please return to refer to Figure 1 The fresh mineral water waterway 5 communicates with the external fresh mineral water source and the water outlet pipe 29. The external fresh mineral water can flow through the fresh mineral water waterway 5 and the water outlet pipe 29 to the water outlet 212 without passing through the instant heating device 25 for heating. The fresh mineral water waterway 5 is provided with a third inlet solenoid valve 51 for controlling the on / off of the fresh mineral water waterway 5.

[0159] Furthermore, the fresh mineral water can be provided by the water purifier 3. The water purifier 3 is provided with a fresh mineral water module to convert the incoming tap water into fresh mineral water. The water purifier 3 is provided with a fresh mineral water outlet 33, and the fresh mineral water outlet 33 is connected to the fresh mineral water waterway 5 to supply fresh mineral water to the tankless pipeline machine 2.

[0160] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation to the present invention. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0161] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drinking water purification system, characterized in that: include: A water purifier having a raw water inlet and a purified water outlet; A faucet having a pure water inlet, wherein the pure water inlet is connected to the pure water outlet; A water tankless pipeline machine comprises a shell, a water system, an instant heating device and a water outlet pipe, wherein the shell has a water inlet and a water outlet nozzle, the water system, the instant heating device and the water outlet pipe are arranged in the shell and located between the water inlet and the water outlet nozzle, and the water system, the instant heating device and the water outlet pipe are arranged in sequence along the flow direction of the water flow; A fresh mineral water channel, connecting an external fresh mineral water source, the water outlet pipe and the pure water inlet; as well as Shunt, comprising: A valve housing, comprising an upper valve housing and a lower valve housing connected to each other, wherein the upper valve housing and the lower valve housing are provided with a water inlet cavity, a reflux cavity and a water outlet cavity, wherein the water outlet cavity can be communicated with the water inlet cavity through the reflux cavity, and the water inlet is communicated with the water outlet cavity, wherein the upper valve housing is an integrally formed component, and / or the lower valve housing is an integrally formed component; A pressure regulating assembly is arranged in the water inlet cavity; A flow diversion component is disposed in the water outlet cavity; and The one-way flow guide is arranged in the reflux chamber.

2. The drinking water purification system according to claim 1, characterized in that: The one-way flow guide comprises: A check body having an input port and an output port, wherein the check body is used to control water to flow from the input port to the output port; A mixing guide body is provided with an extension portion having a liquid injection port protruding toward one side of the check body, and one end of the check body provided with the output port abuts against the extension portion to form a mixing chamber, and the liquid injection port and the output port are both connected to the mixing chamber.

3. The drinking water purification system according to claim 2, characterized in that: The anti-return body comprises: a fixed shell, the input port and the output port being both arranged on the fixed shell; and, The valve core body is movably arranged inside the fixed shell, and the valve core body can open and close the input port according to the pressure difference between the input port and the output port.

4. The drinking water purification system according to claim 3, characterized in that: The valve core body comprises: Activity opening and closing unit; and, An elastic reset portion, two ends of which are respectively in contact with the movable opening and closing portion and the fixed shell; Wherein, when the water pressure on the input port side is less than or equal to the water pressure on the output port side, the sealing head of the movable opening and closing part abuts against and seals the input port; When the water pressure on the input port side is greater than the water pressure on the output port side, the sealing head of the movable opening and closing part moves away from the input port and the elastic reset part is deformed, so that the input port is connected with the output port.

5. The drinking water purification system according to claim 4, characterized in that: The sealing head is provided with a first sealing groove, and a non-return sealing ring is embedded in the first sealing groove.

6. The drinking water purification system according to claim 4, characterized in that: The fixed housing comprises: Maintaining the inner frame; and, A valve seat shell is sleeved on the outer side of the retaining inner frame; Among them, the movable opening and closing part is inserted into the retaining inner frame, the end of the elastic reset part abuts against the retaining inner frame, the input port is arranged on the valve seat shell, and the output port is arranged on the retaining inner frame.

7. The drinking water purification system according to claim 6, characterized in that: The valve seat shell is provided with a second sealing groove, and an outer sealing ring is embedded in the second sealing groove.

8. The drinking water purification system according to claim 6, characterized in that: The inner retaining frame is provided with a retaining support arm, the retaining support arm is located at the inner side of the output port, the retaining support arm is provided with a guide socket for inserting the movable opening and closing part, and the end of the elastic reset part abuts against the retaining support arm.

9. The drinking water purification system according to claim 8, characterized in that: The retaining support arm is provided with a limiting boss protruding toward the movable opening and closing portion, and the end of the elastic reset portion is sleeved on the limiting boss.

10. The drinking water purification system according to any one of claims 2 to 9, characterized in that: A flow guide channel is arranged inside the mixing guide body, a flow guide bottom slope is arranged between the inner wall of the mixing chamber and the inner wall of the flow guide channel, and the flow guide bottom slope extends obliquely from the mixing chamber toward the inner wall of the flow guide channel.

11. The drinking water purification system according to any one of claims 2 to 9, characterized in that: An auxiliary support portion is provided on one side of the mixing guide body protruding toward the check body, and one end of the auxiliary support portion away from the mixing guide body abuts against the check body.

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