Flow divider and purified drinking system

Abstract

The utility model discloses a flow divider and a purified drinking system.The flow divider comprises a valve shell and a one-way flow guiding part, the valve shell comprises a valve body upper shell and a valve body lower shell which are connected with each other, the valve body upper shell and the valve body lower shell form a water inlet cavity, a backflow cavity and a water outlet cavity, and the water outlet cavity can communicate with the water inlet cavity through the backflow cavity; the one-way flow guide part is arranged in the backflow channel and comprises a non-return body and a mixed flow guide body, the non-return body is provided with an output port, a flow guide channel is formed in the mixed flow guide body, the side, facing the non-return body, of the mixed flow guide body is provided with an extending part with a liquid injection port in a protruding mode, and the end, provided with the output port, of the non-return body abuts against the extending part. The liquid injection port and the output port are both communicated with the mixing cavity, the liquid injection port is communicated with the water inlet cavity, and the input port is communicated with the water outlet cavity. According to the technical scheme, the pipeline layout of an existing flow divider can be simplified, the production cost of an existing purified drinking system is reduced, and the assembly difficulty and the fault occurrence probability of the existing purified drinking system are also reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of one-way valves, in particular to a flow divider and a purified drinking system. BACKGROUND

[0002] The purified drinking system is mainly applied to household kitchens, tea rooms in offices and other places to provide people with safe, healthy and convenient drinking water and domestic water. In a household scenario, it can ensure that the water used and drunk by family members is purified and that they can obtain cold and hot water at any time to improve the quality of life. In an office scenario, it can meet the drinking water needs of many employees and provide convenient drinking water facilities for the working environment.

[0003] In related technologies, a one-way valve is usually independently configured in the existing purified drinking system to prevent tap water from flowing back to the existing flow divider from the existing pressure reducing valve. However, this increases the complexity of the pipe layout of the existing flow divider, thereby increasing the production cost and assembly difficulty of the existing purified drinking system and increasing the probability of failure of the existing purified drinking system. CONTENT OF THE UTILITY MODEL

[0004] The embodiments of the present application provide a flow divider and a purified drinking system, which can simplify the pipe layout of the existing flow divider, thereby reducing the production cost of the existing purified drinking system, and reducing the assembly difficulty and failure probability of the existing purified drinking system.

[0005] In a first aspect, the embodiments of the present application provide a flow divider, comprising:

[0006] A valve housing comprising 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 being configured to form a water inlet cavity, a backflow cavity and a water outlet cavity, the water outlet cavity being in communication with the water inlet cavity through the backflow cavity; and

[0007] A one-way flow guide member arranged in the backflow passage, and the one-way flow guide member comprising a check body and a mixed flow guide body, the check body having an output port, the mixed flow guide body having a flow guide passage arranged inside, and the mixed flow guide body being provided with an extension part having a liquid injection port on the side facing the check body, one end of the check body provided with the output port abutting against the extension part to form a mixing cavity, the liquid injection port and the output port both being in communication with the mixing cavity, the liquid injection port being in communication with the water inlet cavity, and the input port being in communication with the water outlet cavity.

[0008] In an embodiment, the check body comprises:

[0009] A fixed shell, the input port and the output port being arranged on the fixed shell; and

[0010] A valve core body movably arranged in the fixed shell, the valve core body being capable of opening and closing the input port according to a pressure difference between the input port and the output port.

[0011] In an embodiment, the valve core body comprises:

[0012] a movable opening and closing part; and

[0013] a resilient reset part, two ends of the resilient reset part abutting against the movable opening and closing part and the fixed shell respectively;

[0014] 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;

[0015] 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 resilient reset part is deformed, so that the input port and the output port are in communication.

[0016] In an embodiment, the fixed shell comprises:

[0017] a retaining inner frame; and

[0018] a valve seat shell sleeved on the outside of the retaining inner frame;

[0019] wherein, the movable opening and closing part is inserted into the retaining inner frame, the end of the resilient 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.

[0020] In an embodiment, the retaining inner frame is provided with a retaining arm on the inside of the output port, the retaining arm is provided with a guide insertion hole for inserting the movable opening and closing part, and the end of the resilient reset part abuts against the retaining arm.

[0021] In an embodiment, a drainage bottom slope is arranged between the cavity inner wall of the mixing cavity and the channel inner wall of the flow guide channel, and the drainage bottom slope extends from the mixing cavity to the flow passage inner wall of the flow guide channel.

[0022] In an embodiment, an auxiliary support part is arranged on one side of the mixing flow guide body protruding towards the check body, and the end of the auxiliary support part away from the mixing flow guide body abuts against the check body.

[0023] In an embodiment, the shunt further comprises a pressure regulating assembly arranged in the water inlet cavity.

[0024] In an embodiment, the shunt further comprises a shunt assembly arranged in the water outlet cavity and provided with an overflow hole.

[0025] The valve body lower shell is provided with a backflow guide part, an inner part of the backflow guide part is provided with a guide flow channel communicating with the backflow cavity, and the shunt assembly can abut against the backflow guide part to seal the guide flow channel.

[0026] In an embodiment, the shunt assembly comprises:

[0027] A shunt balance film is provided with a diaphragm through hole, the overflow hole comprises the diaphragm through hole, and the shunt balance film is clamped between the valve body upper shell and the valve body lower shell.

[0028] A balance spring is arranged between the shunt balance film and the inner cavity wall of the water outlet cavity.

[0029] In an embodiment, the shunt assembly further comprises:

[0030] A diaphragm top cover is provided with a top cover through hole.

[0031] A diaphragm base is provided with a base through hole.

[0032] The shunt balance film is clamped between the diaphragm top cover and the diaphragm base, the top cover through hole and the base through hole both communicate with the diaphragm through hole, and the top cover through hole, the base through hole and the diaphragm through hole form the overflow hole, one end of the balance spring abuts against the inner cavity wall of the water outlet cavity, and the other end of the balance spring abuts against the diaphragm top cover.

[0033] In a second aspect, the embodiments of the present application provide a pure drinking system, comprising:

[0034] The shunt mentioned above;

[0035] A water purifier;

[0036] A water tankless pipeline machine is used for heating or refrigerating a water source purified by the water purifier.

[0037] A faucet, the faucet, the water tankless pipeline machine, the water purifier and the water supply pipeline all communicate with the shunt.

[0038] Based on the above embodiment, the flow divider provided in the embodiment of the application comprises a valve shell and a one-way flow guide, wherein the valve shell comprises 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 are configured to form a water inlet cavity, a backflow cavity and a water outlet cavity, the water outlet cavity is capable of being communicated with the water inlet cavity through the backflow cavity, the one-way flow guide is arranged in the backflow passage, and the one-way flow guide comprises a check body and a mixed flow guide body, the check body is provided with an output port, the mixed flow guide body is internally provided with a flow guide passage, and the mixed flow guide body is provided with an extension part with a liquid injection port on the side close to 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 the liquid injection port and the output port are both communicated with the mixing cavity, the liquid injection port is communicated with the water inlet cavity, and the input port is communicated with the water outlet cavity.

[0039] Compared with the related art, the technical scheme of the application can form the mixing cavity with the liquid injection port through cooperation of the check body and the mixed flow guide body, the output port of the check body is directly communicated with the mixing cavity, without using pipes to be connected one by one, thereby effectively simplifying the pipeline layout of the existing flow divider, effectively reducing the assembly difficulty and the failure probability (the failure probability here should be understood as the probability of leakage at the pipe connection) of the existing flow divider, reducing the assembly cost of the flow divider. In addition, the check body and the mixed flow guide body have simple structures and can be processed and manufactured separately, thereby reducing the processing cost of the one-way flow guide. Therefore, the production cost of the flow divider as a whole is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical scheme in the embodiments of the application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description can only be some embodiments of the application, and other drawings can also be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0041] Figure 1 It is a first structural schematic view of the flow divider of an embodiment of the application.

[0042] Figure 2 It is a second structural schematic view of the flow divider of an embodiment of the application.

[0043] Figure 3 It is an assembly half-section schematic view of the flow divider of an embodiment of the application.

[0044] Figure 4 It is a third assembly schematic view of the flow divider of an embodiment of the application.

[0045] Figure 5 It is a fourth assembly schematic view of the flow divider of an embodiment of the application.

[0046] Figure 6 First partial assembly view of the flow divider according to an embodiment of the present application;

[0047] Figure 7 Second partial assembly view of the flow divider according to an embodiment of the present application;

[0048] Figure 8 First overall structure view of the one-way flow guide according to the present application;

[0049] Figure 9 Second overall structure view of the one-way flow guide according to the present application;

[0050] Figure 10 Overall exploded structure view of the one-way flow guide according to the present application;

[0051] Figure 11 Third overall structure view of the one-way flow guide according to the present application;

[0052] Figure 12 Exploded structure view of the valve core assembly according to the present application;

[0053] Figure 13 Structure cross-sectional view of the valve core base according to the present application;

[0054] Figure 14 Structure view of the pressure regulating elastic member according to the present application;

[0055] Figure 15 is Figure 5 Local enlarged view of A in FIG.

[0056] Figure 16 Structure cross-sectional view of the flow divider assembly according to the present application.

[0057] BRIEF DESCRIPTION OF THE DRAWINGS

[0058] 1-diversion, 11-valve shell, 1141-raw water inlet, 1142-raw water outlet, 1143-pure water inlet, 1144-first water supply port, 1145-second water supply port, 1146-backflow cavity, 1147-water inlet cavity, 1148-water outlet cavity, 1149-positioning groove, 1151-decompression cavity discharge port, 1152-step limiting portion, 1153-air cavity, 1154-water injection guide tube portion, 1155-water injection flow channel, 116-valve body upper shell, 117-valve body lower shell, 1171-backflow guide portion, 1172-guide flow channel, 118-breathing hole, 1191-limiting support column, 1192-anti-sticking protrusion, 1193-groove, 1194-pressure regulating limiting platform, 13-one-way flow guide, 131-check body, 1311-input port, 1312-output port, 1313-fixed shell, 13131-valve seat shell, 13132-retaining inner frame, 13133-subtracting port, 13134-retaining arm, 13135-limiting boss, 13136-guide insertion hole, 1314-valve core body, 13141-movable opening and closing portion, 13142-elastic return portion, 13143-sealing head, 13144-backstop sealing ring, 132-mixing flow guide, 1321-flow guide channel, 1322-positioning protrusion, 133-extension, 1331-liquid injection port, 1332-mixing cavity, 134-shaft shoulder portion, 135-assisting support portion, 136-drainage bottom slope, 137-outer sealing ring, 14-tube joint, 15-fastening sealing ring, 16-pressure regulating assembly, 1611-liquid cavity, 1612-water injection flow guide hole, 16121-first flow guide hole, 16122-second flow guide hole, 1613-pressure regulating water outlet, 162-valve core assembly, 1621-valve core limiting sleeve, 1622-valve core base, 1623-valve flap plug, 16231-valve flap support, 16232-plug elastic member, 16233-valve flap embedding slot, 16234-conducting hole, 1624-valve flap support beam, 1625-outer threaded segment, 1626-inner threaded segment, 163-pressure regulating elastic member, 1631-elastic member body, 1632-clamping protrusion portion, 16331-first fastening protrusion, 16332-second fastening protrusion, 16333-third fastening protrusion, 1634-deformation adjusting slot, 1635-sealing buckling portion, 164-elastic sleeve connection hole, 165-valve core sealing ring, 166-pressure regulating spring, 17-diversion assembly, 171-balance spring, 172-diversion balance membrane, 1721-flexible check portion, 1722-flow rate adjusting port, 1724-membrane hole, 173-membrane top cover, 1731-top cover through hole, 174-membrane base, 1741-base through hole.

[0059] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0060] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the embodiments of the present application with reference to the accompanying drawings.

[0061] The following description of the application refers to the accompanying drawings, wherein like numbers refer to like elements or features. The embodiments described in the following examples are not meant to be limiting of the present application. Rather, they are presented as examples of the application and its applications to the skilled in the art. It will be apparent to one of ordinary skill in the art that other embodiments and implementations can be developed without departing from the spirit of the application.

[0062] In the description of the present application, it should be understood that the terms "first", "second" and the like are used to describe various elements, but not to indicate or imply relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, "a plurality of" means two or more, unless otherwise specified. "And / or", the association between the associated objects, means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents a "or" relationship between the associated objects before and after.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the specification is only for the purpose of describing specific embodiments and is not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more associated items.

[0064] The present application proposes a net drinking system, which comprises a water purifier, a water tankless pipeline machine and a faucet. The water purifier is used to deeply filter and purify the water source provided by the water supply pipeline, so that the water quality of the water source meets the standard of safe drinking or meets the specific use requirements. The water tankless pipeline machine is used to instantaneously heat or cool the purified water source, so that the user can accurately obtain drinking water and meet the different drinking water temperature requirements of the user. It should be noted that the water purifier, the water tankless pipeline machine and the faucet all belong to the relatively mature prior art in the art, and the present application does not make significant improvements to the water purifier, the water tankless pipeline machine and the faucet. Therefore, the structure of the water purifier, the water tankless pipeline machine and the faucet is not described in detail, and the type and model of the water purifier and the water tankless pipeline machine are not limited.

[0065] Considering that the water pressure in the water supply pipeline can change due to various factors (such as water supply peak, pipeline repair, etc.), a pressure reducing valve is usually configured before the water inlet of the water purifier, which not only stabilizes the water pressure in the water supply pipeline and reduces the water pressure entering the water purifier in advance to avoid physical damage to the water purifier due to excessive water pressure. In order to distribute the purified water to the tankless pipeline machine and faucet at the same time and improve water utilization efficiency, a flow divider is usually configured at the rear end of the water outlet of the water purifier. The water inlet of the tankless pipeline machine and the water inlet of the faucet are connected to the flow divider. When the user needs to take temperature-adjusted drinking water, such as drinking 5℃-15℃ ice water in hot summer, or taking 40℃-50℃ warm water to wash milk powder, or taking 90℃-99℃ hot water to make tea, the user can open the tankless pipeline machine to take it. When the user needs to take domestic water to wash dishes or wash vegetables and fruits or wash clothes, the user can open the faucet to take it.

[0066] In the water purification system, the pressure reducing valve and the flow divider are independently configured, which not only occupies more space and causes the pipeline layout to be messy, increasing the installation difficulty. Moreover, when a fault occurs, the pressure reducing valve and the flow divider need to be detected and repaired separately, and replacing the pressure reducing valve and / or flow divider 1 in a limited space will greatly increase the complexity of operation and maintenance cost.

[0067] Therefore, the embodiments of the present application provide a water purification system, which further comprises a flow divider 1, the faucet, the tankless pipeline machine, the water purifier and the water supply pipeline are connected to the flow divider 1, so that the water supply pipeline can introduce tap water to the flow divider 1 and adjust the excessive and unstable water pressure of the tap water in the water supply pipeline and keep it within a preset pressure value range, finally generating stabilized water and conveying it to the water purifier, the water purifier will generate pure water after deep filtration and purification treatment of the stabilized water and flow to the flow divider 1 again, and the pure water flowing to the faucet will be used as domestic water, and the pure water flowing to the tankless pipeline machine will be used as drinking water.

[0068] Specifically, please refer to Figures 1 to 5As shown, the flow divider 1 comprises a valve shell 11, which comprises a valve upper shell 116 and a valve lower shell 117 connected with each other, where the connection between the valve upper shell 116 and the valve lower shell 117 is understood as detachable connection, such as bolt connection, clamping connection, etc., so as to facilitate the production of the valve upper shell 116 and the valve lower shell 117, and effectively improve the assembly efficiency and reduce the assembly difficulty. In the embodiment, the valve upper shell 116 and the valve lower shell 117 are configured to form a water inlet cavity 1147, a backflow cavity 1146 and a water outlet cavity 1148, the water outlet cavity 1148 is in communication with the water inlet cavity 1147 through the backflow cavity 1146, the water inlet cavity 1147 and the water outlet cavity 1148 are preferably located at the top side of the backflow cavity 1146, and the valve upper shell 116 is an integrally formed component, and / or the valve lower shell 117 is an integrally formed component, so that the valve shell 11 assembled by the valve upper shell 116 and the valve lower shell 117 is more stable and has higher structural strength. In this way, when subjected to high-pressure fluid, the pressure can be evenly distributed in each part of the valve shell 11, effectively preventing the valve shell 11 from being broken. When subjected to external impact, it can better resist deformation, and compared with the combination of independent pressure reducing valve and flow divider, such flow divider 1 is less likely to loosen and separate, reducing the risk of leakage of the flow divider 1, improving the sealing performance of the flow divider 1, thereby ensuring that the sealing performance of the water purification system is more stable during long-term use, and simplifying the number of pipeline elements (such as valves, conduits, etc.) and pipeline connections of the water purification system, thereby facilitating the installation difficulty and subsequent maintenance difficulty of the water purification system. At the same time, the integrally formed technology can realize the manufacturing of the valve body through precise mold or machining process, and better control the dimensional accuracy and shape accuracy of the valve shell 11.

[0069] In the embodiment, specifically please combine Figures 1 to 4As shown, the flow distributor 1 is provided with a raw water inlet 1141, a purified water inlet 1143, a raw water outlet 1142, a first water supply outlet 1144 and a second water supply outlet 1145. The raw water inlet 1141 is used to connect a water supply pipeline to introduce tap water into the water inlet cavity 1147 of the valve housing 11, the raw water outlet 1142 is used to communicate with a water purifier to deliver the steady pressure water flowing through the water inlet cavity 1147 and treated by pressure stabilization to the water purifier, the purified water inlet 1143 is used to communicate with the water purifier to introduce purified water purified by the water purifier, the first water supply outlet 1144 is used to communicate with a tankless pipeline machine to deliver the purified water to the tankless pipeline machine, and the second water supply outlet 1145 is used to communicate with a faucet to deliver the purified water to the faucet. The raw water inlet 1141 communicates with the water inlet cavity 1147, the raw water outlet 1142 communicates with the backflow cavity 1146, and the purified water inlet 1143, the first water supply outlet 1144 and the second water supply outlet 1145 all communicate with the water outlet cavity 1148. Preferably, the raw water outlet 1142, the purified water inlet 1143 and the second water supply outlet 1145 are arranged on the lower valve body 117, and the raw water inlet 1141 and the first water supply outlet 1144 are arranged on the upper valve body 116.

[0070] Further, as shown in Figure 3 and Figure 4 The flow distributor 1 comprises a pressure regulating assembly 16 arranged in the water inlet cavity 1147 and a flow distribution assembly 17 arranged in the water outlet cavity 1148. In this way, the tap water supplied by the water supply pipeline flows into the water inlet cavity 1147 from the raw water inlet 1141. If the water pressure in the urban water supply network changes due to various factors (such as water consumption peaks and troughs, maintenance and adjustment of the water supply system, etc.), for example, the water pressure is lower during the water supply peak period, and the water pressure is relatively higher during the night and other water consumption trough periods. At this time, the pressure regulating assembly 16 can reduce / pressure stabilize the tap water flowing into the water inlet cavity 1147 into steady pressure water, and then output to the water purifier for filtration and purification treatment through the raw water outlet 1142, so as to stabilize the water pressure of the tap water within a suitable range, so as to avoid the risk of overpressure damage or leakage of the water purifier caused by the high water pressure acting on the filter element, purification pipeline and other precision components inside the water purifier, and improve the service life of the water purifier. In addition, the tap water passes through the filter element of the water purifier at a relatively stable flow rate, so that the filter element can fully absorb the organic matter, residual chlorine and other impurities in the tap water, so as to ensure that the water purifier always maintains the best filtration effect.

[0071] As can be understood, Figure 4As shown, the purified water is generated after the water purifier performs deep filtration and purification treatment on the steady water, and then flows into the water outlet cavity 1148 after flowing through the purified water inlet 1143 of the flow divider 1. The cooperation between the water outlet cavity 1148 and the flow dividing assembly 17 enables the purified water to flow out from the first water supply port 1144 to the water tankless pipeline machine and from the second water supply port 1145 to the faucet according to actual deployment. During the process of dividing the purified water, the excess purified water inside the water outlet cavity 1148 can flow back to the backflow cavity 1146 under the adjustment of the flow dividing assembly 17, forming excess water. The backflow cavity 1146 can combine the steady water flowing through the pressure regulating assembly 16 with the excess water flowing back from the flow dividing assembly 17, and output the steady water from the raw water outlet 1142 to the water purifier.

[0072] Next, the specific structure of the pressure regulating assembly 16 will be described in detail in combination with the drawings.

[0073] Specifically, as shown in Figure 3 , Figure 4 and Figure 5 , the pressure regulating assembly 16 can divide the water inlet cavity 1147 into an air cavity 1153 and a liquid cavity 1611. Specifically, the space surrounded by the valve body upper shell 116 and the pressure regulating assembly 16 forms the air cavity 1153. The pressure regulating assembly 16 is provided with a water injection guide hole 1612 and a pressure regulating water outlet 1613, both of which communicate with the liquid cavity 1611.

[0074] Further, as shown in Figure 3 , Figure 4 and Figure 5As shown, the inner wall of the chamber of the air cavity 1153 is provided with a water injection guide pipe part 1154 communicating with the raw water inlet 1141 and extending towards the inside of the air cavity 1153, and the water injection guide pipe part 1154 is inserted into the water injection flow guide hole 1612 of the pressure regulating assembly 16. Specifically, the inside of the water injection guide pipe part 1154 is provided with a water injection flow channel 1155 communicating with the raw water inlet 1141, and the water injection guide pipe part 1154 communicates with the liquid cavity 1611 through the water injection flow channel 1155, and the port for communicating with the liquid cavity 1611 of the water injection flow channel 1155 is a water passing port. The valve housing 11 is provided with a pressure relief cavity discharge port 1151, so that the liquid cavity 1611 can communicate with the backflow cavity 1146 through the pressure relief cavity discharge port 1151, and then the water pressure on the side of the liquid cavity 1611 close to the pressure regulating water outlet 1613 is equal to the water pressure in the backflow cavity 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 stable pressure water supplied to the water purifier, and the water pressure on the side of the liquid cavity 1611 close to the water injection flow guide hole 1612 is equal to the water pressure of the water supply pipeline, that is, the inlet pressure on the side of the water injection flow guide hole 1612 of the pressure regulating assembly 16 is the water pressure of the water supply pipeline. Since the pressure regulating assembly 16 includes a pressure regulating execution end arranged in the inside of the liquid cavity 1611. In this way, when a pressure difference is formed between the pressure regulating water outlet 1613 and the water injection flow guide hole 1612, the pressure regulating assembly 16 can produce a relative displacement along the central axis of the water injection guide pipe part 1154 to change the throttling distance between the water passing port and the pressure regulating execution end.

[0075] As can be understood, Figure 5 As shown, the whole process of tap water flowing into the liquid cavity 1611 is as follows: after the tap water flows into the water injection flow channel 1155 from the raw water inlet 1141, it will flow through the water passing port, the water injection flow guide hole 1612, the pressure regulating water outlet 1613, and the pressure relief cavity discharge port 1151 in turn and flow to the backflow cavity 1146. When the outlet pressure of the pressure regulating assembly 16 rises (such as when the water purifier is turned off), the pressure on the side of the pressure regulating water outlet 1613 will drive the pressure regulating assembly 16 to produce a displacement along the central axis of the water injection guide pipe part 1154 and towards the side close to the water passing port, and 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 decreases, that is, the flow area between the water passing port and the pressure regulating execution end through which the tap water can pass decreases, until the force balance position is reached. When the outlet pressure decreases (such as when the water purifier is turned on), the pressure on the side of the water injection flow guide hole 1612 will drive the pressure regulating assembly 16 to produce a displacement along the central axis of the water injection guide pipe part 1154 and towards the side away from the water passing port, and then 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 increases, until the pressure regulating execution end returns to the force balance state.

[0076] Therefore, as the outlet pressure changes, the pressure regulating assembly 16 automatically makes corresponding displacement to change the throttling distance between the water passage port and the pressure regulating execution end, so as to achieve the purpose of pressure stabilization, thereby ensuring that the pressure supplied to the water purifier remains basically unchanged. The structure is simple and compact, which is more convenient for subsequent disassembly and maintenance work of maintenance personnel. In addition, since the water injection guide pipe part 1154 is inserted into the water injection flow guide hole 1612 of the pressure regulating assembly 16, not only does it make the pressure regulating assembly 16 more stable during displacement, but it also ensures that the pressure regulating execution end moves precisely towards or away from the water passage port, thereby precisely adjusting the throttling distance between the water passage port and the pressure regulating execution end, achieving the purpose of precise pressure regulation. During the assembly of the pressure regulating assembly 16 to the valve shell 11, the water injection guide pipe part 1154 can also position the pressure regulating assembly 16, achieving the purpose of improving assembly efficiency and positioning accuracy.

[0077] The unexpected effect is that, as shown in Figure 3 and Figure 5 , the tap water flowing from the raw water inlet 1141 flows into the liquid cavity 1611 under the guidance of the water injection flow channel 1155, and does not fill the entire water inlet cavity 1147, which not only makes the pressure regulation response more timely and accurate. At the same time, it can further reduce the probability of leakage of tap water from the assembly position between the pressure regulating assembly 16 and the valve shell 11, thereby improving the structural stability and reliability of the flow divider 1.

[0078] As shown in Figure 3 , the pressure regulating assembly 16 includes a valve core assembly 162 and a pressure regulating elastic member 163 with elasticity, i.e. the pressure regulating elastic member 163 is made of a material that can elastically deform (such as silicone, rubber, etc.), the water injection flow guide hole 1612 and the pressure regulating water outlet 1613 are arranged on the valve core assembly 162, and the valve core assembly 162 is detachably connected with the pressure regulating elastic member 163, so as to facilitate disassembly and assembly of the valve core assembly 162 and the pressure regulating elastic member 163. When the pressure regulating elastic member 163 is damaged or loses elasticity after long-term use, the pressure regulating elastic member 163 can be replaced individually, reducing the maintenance cost of the pressure regulating assembly 16. As shown in Figure 4 , the pressure regulating elastic member 163 is connected between the valve body upper shell 116 and the valve body lower shell 117. Further, when a pressure difference is formed between the pressure regulating water outlet 1613 and the water injection flow guide hole 1612, the pressure regulating elastic member 163 can deform, and the valve core assembly 162 slides relatively along the extension direction of the water injection guide pipe part 1154.

[0079] Understandably, when the outlet pressure on the pressure regulating outlet port 1613 side of the valve core assembly 162 increases, the pressure regulating elastic member 163 is elastically deformed towards the side close to the water passage port under the action of the outlet pressure, and at the same time, the valve core assembly 162 also moves along the central axis of the water injection guide pipe portion 1154 and towards the side close to the water passage port. When the inlet pressure on the water injection flow guide hole 1612 side of the valve core assembly 162 decreases, the pressure regulating elastic member 163 is reset towards the side away from the water passage port under the action of the outlet pressure and the deformation recovery of the pressure regulating elastic member 163, and at the same time, the valve core assembly 162 also moves along the central axis of the water injection guide pipe portion 1154 and towards the side away from the water passage port.

[0080] As a preferred mode of the present embodiment, specifically as shown in Figure 5 , the valve core assembly 162 includes a valve core limiting sleeve 1621 and a valve core base 1622, wherein the valve core limiting sleeve 1621 is provided with a first flow guide hole 16121, the valve core base 1622 is provided with a second flow guide hole 16122, the first flow guide hole 16121 and the second flow guide hole 16122 constitute the water injection flow guide hole 1612, the central axis of the first flow guide hole 16121 is collinear with the central axis of the second flow guide hole 16122, ensuring that the water injection guide pipe portion 1154 can be sequentially inserted into the first flow guide hole 16121 and the second flow guide hole 16122, and the pressure regulating outlet port 1613 is arranged on the valve core base 1622. Further, as shown in Figure 12 and Figure 13 , the valve core limiting 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 limiting sleeve 1621 and the valve core base 1622. Preferably, the valve core base 1622 is provided with an external thread segment 1625, and the valve core limiting sleeve 1621 is provided with an internal thread segment 1626 threadedly connected with the external thread segment 1625, so that the valve core limiting sleeve 1621 and the valve core base 1622 are screw-fixed, which not only realizes the detachable connection of the valve core assembly 162 and the pressure regulating elastic member 163, but also makes the assembly more convenient and efficient.

[0081] Specifically, as shown in Figure 5 , the inner diameter of the port of the valve core limiting sleeve 1621 close to one end of the pressure regulating elastic member 163 is greater than the diameter of the valve core base 1622, so that a clamping space is formed between the valve core limiting sleeve 1621 close to one end of the pressure regulating elastic member 163 and the outer side wall of the valve core base 1622. Further, specifically in combination with Figure 12 , Figure 13 and Figure 14As shown, the pressure regulating elastic member 163 comprises an elastic member body 1631 and a clamping protrusion 1632 extending from the elastic member body 1631 towards the clamping space, wherein the elastic member body 1631 and the clamping protrusion 1632 both extend along the circumference of the valve core base 1622, and the end of the elastic member body 1631 close to the valve core base 1622 is formed into an elastic sleeve hole 164 together with the clamping protrusion 1632, the valve core base 1622 is inserted into the elastic sleeve 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. In this way, the valve core limiting sleeve 1621 and the valve core base 1622 cooperate to clamp the pressure regulating elastic member 163, so that the connection between the pressure regulating elastic member 163 and the valve core assembly 162 is more stable, thereby ensuring that the pressure regulating elastic member 163 and the valve core assembly 162 do not separate during the elastic deformation of the pressure regulating elastic member 163 and the movement of the valve core assembly 162, and improving the stability of the pressure regulating assembly 16 during the working process.

[0082] Further, please refer to Figure 14 As shown, the clamping protrusion 1632 is provided with a second fastening protrusion 16332, and the second fastening protrusion 16332 is integrally formed with the clamping protrusion 1632, so that 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 separating 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 is integrally formed with the second fastening protrusion 16332, which can also increase the frictional resistance between the clamping protrusion 1632 and the valve core limiting sleeve 1621.

[0083] Further, please refer to Figure 14 As shown, the clamping protrusion 1632 is further provided with a third fastening protrusion 16333, and 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 separating from the clamping space. Of course, the third fastening protrusion 16333 can also be provided on the valve core base 1622, and the valve core base 1622 is integrally formed with the third fastening protrusion 16333, which can also increase the frictional resistance between the clamping protrusion 1632 and the valve core base 1622.

[0084] 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 make the clamping protrusion 1632 more compactly assembled in the clamping space.

[0085] In addition, please refer to the specific details. Figure 5 As shown, the pressure regulating assembly 16 also 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 1154 and embedded inside the valve core sealing cavity to better prevent tap water from seeping out from between the water injection guide hole 1612 and the water injection conduit 1154 into the air cavity 1153.

[0086] In this embodiment, to ensure that the pressure regulating elastic element 163 can be connected more quickly and securely between the upper valve body 116 and the lower valve body 117, the inventors have provided a preferred method, which can be found in conjunction with [the following text is missing from the original] Figures 1 to 5 As shown, the aforementioned elastic element body 1631 is snapped between the upper valve body shell 116 and the lower valve body shell 117. Specifically, please refer to... Figure 14 As shown, the lower valve body 117 is provided with a housing groove, which extends circumferentially along the lower valve body 117. The pressure regulating elastic element 163 extends into the housing groove to form a sealing fastening part 1635, which extends along the length of the housing groove and is inserted into the housing groove. This arrangement not only ensures that the pressure regulating elastic element 163 is more compactly and firmly fastened to the valve body 11, facilitating the assembly of the pressure regulating component 16, but also ensures that the pressure regulating component 16 is more securely installed on the valve body 11. Simultaneously, it ensures the sealing of the connection between the pressure regulating elastic element 163 and the valve body 11, preventing water from seeping out of the valve body 11 and avoiding water infiltration into the air cavity 1153, which could lead to rust and failure of the components in the air cavity 1153. It should be noted that the housing slot can also be provided on the upper housing 116 of the valve body, or both the upper housing 116 and the lower housing 117 of the valve body can be provided with housing slots, which can be set and adjusted according to the structural design and design requirements.

[0087] Further details are available according to... Figure 14As shown, the first fastening protrusion 16331 is arranged on the sealing buckle 1635 and is integrally formed with the sealing buckle 1635, so that the first fastening protrusion 16331 is clamped between the sealing buckle 1635 and the shell clamping groove, thereby increasing the frictional resistance between the sealing buckle 1635 and the shell clamping groove, so that the sealing buckle 1635 is more stably inserted into the shell clamping groove and better prevents the sealing buckle 1635 from being separated from the shell clamping groove. Of course, the first fastening protrusion 16331 can also be arranged on the groove wall of the shell clamping groove, which can also increase the frictional resistance between the sealing buckle 1635 and the shell clamping groove.

[0088] As a preferred mode of the present embodiment, please refer to Figure 14 As shown, the elastic member body 1631 is provided with a deformation adjusting groove 1634, which is in a U-shaped structure, and the groove opening of the deformation adjusting groove 1634 is preferably directed to the air cavity 1153. As shown in Figure 5 As shown, the deformation adjusting groove 1634 is curved and formed at the part of the elastic member body 1631 between the valve core base 1622 and the valve shell 11, and the deformation adjusting groove 1634 extends along the circumference of the valve core base 1622. This not only provides sufficient space for the elastic member body 1631 to deform elastically, but also provides a larger elastic deformation range in a limited space, thereby increasing the elastic ability of the pressure regulating elastic member 163.

[0089] As a preferred mode of the present embodiment, please refer to Figure 12 As shown, the valve core base 1622 comprises a valve flap plug 1623, which is the pressure regulating execution end of the pressure regulating assembly 16. As shown in Figure 13 As shown, the valve flap plug 1623 is provided with a valve flap support beam 1624 extending towards the cavity wall of the liquid cavity 1611, and the valve flap support beam 1624 extends to the body of the valve core base 1622 and is fixedly connected with the body of the valve core base 1622. In order to ensure that the valve core base 1622 has good structural strength and facilitate the production 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, which extends along the circumference of the valve flap plug 1623, and a plurality of water flow through holes are uniformly arranged on the valve flap support beam 1624 along the circumference of the valve flap plug 1623, so that the pressure regulating water can flow through the water flow through holes. Alternatively, the valve flap support beam 1624 is preferably a plurality of valve flap support beams 1624, which are uniformly distributed on the circumferential side of the valve flap plug 1623, and adjacent two valve flap support beams 1624 are arranged at intervals, so that the pressure regulating water can flow from the circumferential side of the valve flap plug 1623.

[0090] In order to avoid rigid contact between the valve disc plug 1623 and the water inlet port of the water inlet guide pipe part 1154, and reduce the noise of the flow divider 1, the valve disc plug 1623 comprises a valve disc support 16231 and a plug elastic member 16232 with elasticity, as shown in Figure 5 , Figure 12 and Figure 13 . The plug elastic member 16232 can be made of silica gel, and the valve disc support 16231 is fixedly connected to the body of the valve core base 1622 through a valve disc support beam 1624.

[0091] In this embodiment, as shown in Figures 3 to 5 , the pressure regulating assembly 16 further comprises a pressure regulating spring 166, which is located in the air cavity 1153, and one end of the pressure regulating spring 166 abuts against the inner wall of the cavity of the air cavity 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 outlet 1613 and the water inlet flow guide hole 1612, both the pressure regulating elastic member 163 and the pressure regulating spring 166 are deformed.

[0092] On the one hand, during pressure regulation, 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, 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 make the valve core assembly 162 move accordingly and return 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 further 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 some extent, thereby avoiding the problem that the pressure regulating elastic member 163 alone bears the pressure that may lead to excessive deformation, fatigue failure, or even damage when the inlet pressure is too high or frequently starts and stops.

[0093] In addition, the combination of the pressure regulating spring 166 and the pressure regulating elastic member 163 can make the valve core assembly 162 respond more quickly to pressure changes. When the pressure changes, the elastic force of the pressure regulating spring 166 can cooperate with the deformation force of the pressure regulating elastic member 163 to accelerate the movement of the valve core assembly 162, that is, to quickly adjust the throttling distance between the water inlet port and the pressure regulating execution end, thereby improving the pressure regulating efficiency of the flow divider 1.

[0094] Further, as shown in Figures 3 to 5 , the pressure regulating spring 166 is a coil spring, and the pressure regulating elastic member 163 is a rubber ring.As shown, the inner wall of the chamber of the air cavity 1153 is provided with a pressure regulating limiting platform 1194 along the extension direction of the water injection conduit portion 1154, the length of the extension of the pressure regulating limiting platform 1194 is smaller than the length of the extension of the water injection conduit portion 1154, the end of the pressure regulating spring 166 is sleeved outside the pressure regulating limiting platform 1194, so as to limit the pressure regulating spring 166 and improve the positioning accuracy and assembly efficiency of the pressure regulating spring 166 during assembly.

[0095] Preferably, in particular, please combine Figures 3 to 5 As shown, the valve core assembly 162 can abut against the pressure regulating limiting platform 1194 along the central axis of the water injection conduit portion 1154, so that the pressure regulating execution end seals 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, the valve core limiting sleeve 1621 of the valve core assembly 162 abuts against the pressure regulating limiting platform 1194, and the plug elastic element 16232 of the valve core assembly 162 will also abut against the water passing port of the water injection conduit portion 1154, thereby improving the bearing area and bearing force of the flow divider 1.

[0096] Further, in particular, please according to Figure 3 As shown, the valve housing 11 is also provided with a breathing hole 118, and the air cavity 1153 is communicated with the outside of the valve housing 11 through the breathing hole 118, so that the pressure regulating assembly 16 can produce relative displacement along the central axis direction of the water injection conduit portion 1154. As can be understood, when the pressure regulating elastic element 163 and the pressure regulating spring 166 are deformed, the space pressure inside the air cavity 1153 will change. At this time, the air cavity 1153 is communicated with the atmospheric pressure through the breathing hole 118, which helps to keep the pressure of the air cavity 1153 where the pressure regulating spring 166 is stable, thereby avoiding the risk of excessive deformation and rupture of the pressure regulating elastic element 163 due to the pressure difference on both sides of the pressure regulating elastic element 163 exceeding the bearing capacity of the pressure regulating elastic element 163, thereby 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 communicated with the external environment pressure through the breathing hole 118, which can well avoid the cavitation phenomenon caused by the pressure being reduced below the saturated vapor pressure of tap water during the pressure reduction / regulation of tap water, thereby avoiding the problems of vibration and noise of the flow divider 1 due to the existence of bubbles.

[0097] Preferably, in particular, please according to Figure 3As shown, the breathing hole 118 is arranged on the valve body upper shell 116 of the valve shell 11, and the central axis of the breathing hole 118 is arranged in parallel with the central axis of the water injection guide pipe part 1154. In this way, from the aspect of stability, the consistent direction helps to maintain the balance state of the air cavity 1153. During the operation, when there is a slight fluctuation in pressure, the pressure regulating spring 166 will expand and contract according to the pressure change, and the position of the breathing hole 118 allows the gas to enter and exit in time, which cooperates with the action of the pressure regulating spring 166 and the pressure regulating elastic member 163 to quickly adjust the internal pressure. From the aspect of the accuracy of pressure regulation, when the breathing hole 118 is consistent with the extension direction of the pressure regulating spring 166, the path of the gas entering and exiting the breathing hole 118 is more matched and coordinated with the internal space change path caused by the extension of the pressure regulating spring 166 during the pressure change, which will be able to more accurately control the reduction range of the pressure.

[0098] Further, please refer to the specific description of Figure 3 As shown, the breathing hole 118 is arranged on the valve body upper shell 116 near the edge, and the breathing hole 118 extends along the extension direction of the water injection guide pipe part 1154 to the side of the valve body upper shell 116 near the pressure regulating assembly 16, which will effectively ensure that the inner hole wall of the breathing hole 118 is more flat and smooth, so that the flow state of the gas passing through the breathing hole 118 is more stable, effectively avoiding the unstable phenomenon of local turbulent flow of the gas, thereby ensuring that the air cavity 1153 can more accurately perceive the change of the pressure and more accurately regulate the pressure, and improving the accuracy of pressure regulation. Of course, the flat inner hole wall is also not easy to accumulate impurities. In some working environments, the fluid may carry small particle impurities, which are easy to accumulate at the protrusions, and over time, may cause the breathing hole 118 to be blocked. The flat inner hole wall makes it not easy for impurities to adhere and accumulate, which can effectively ensure the smoothness of the breathing hole 118, ensure the normal breathing function of the air cavity 1153, and further ensure the stable operation of the entire flow divider 1.

[0099] As a preferred mode of the present embodiment, please refer to the specific description of Figure 6 and Figure 7As shown, the valve body lower shell 117 of the valve shell 11 is provided with a limiting support column 1191, which is preferably located directly below the valve flap plug 1623 and protrudes towards the liquid cavity 1611. The pressure regulating execution end of the pressure regulating assembly 16 can abut against the limiting support column 1191, so that the shunt 1 can limit the pressure regulating execution end of the valve core assembly 162 in the non-use state or when the outlet pressure drops, that is, the limiting 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 passage port of the water injection flow channel 1155 is maximum. Further, the end of the limiting support column 1191 near the pressure regulating execution end is provided with an anti-sticking protrusion 1192, so that the limiting support column 1191 and the pressure regulating execution end form a gap. This is equivalent to reducing the contact area between the limiting 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 limiting support column 1191, so that when the end of the limiting support column 1191 is fouled, the pressure regulating execution end will not be stuck to the limiting support column 1191, effectively preventing the shunt 1 from failing to regulate pressure.

[0100] Further, as shown in Figure 6 and Figure 7 As shown, the anti-sticking protrusions 1192 are distributed at the edge positions of the end of the limiting support column 1191 and extend along the circumference of the limiting support column 1191. The anti-sticking protrusions 1192 are preferably arc-shaped structures formed along the circumference of the limiting support column 1191. When tap water flows through the limiting support column 1191, it can clean the end of the limiting support column 1191, reducing the probability of fouling at the end of the limiting support column 1191.

[0101] 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.

[0102] Preferably, the end of the limiting support column 1191 can also be provided with a groove 1193, and the anti-sticking protrusions 1192 are located at the side of the groove 1193. In this way, the gap distance between the limiting support column 1191 and the pressure regulating execution end is effectively increased, thereby further preventing the pressure regulating execution end from sticking to the limiting support column 1191 and improving the stability of the pressure regulation of the shunt 1.

[0103] Further, as shown in Figure 15As shown, the valve clack support 16231 is provided with at least one through hole 16234 near one side wall of the limiting support column 1191, which not only facilitates the embedding of the plug elastic member 16232 in the valve clack embedding groove 16233 of the valve clack support 16231 and the pushing of the plug elastic member 16232 out of the valve clack embedding groove 16233 of the valve clack support 16231, but also further reduces the contact area of the pressure regulating execution end.

[0104] In the above, the water outlet cavity 1148 cooperates with the shunt assembly 17 to distribute the purified water purified by the water purifier, and the excess purified water inside the water outlet cavity 1148 can flow back to the backflow cavity 1146 under the adjustment of the shunt assembly 17, forming excess water, thereby effectively preventing the water purifier from frequently starting and stopping due to the large fluctuation range of water pressure during the process of suddenly starting the water tankless pipeline machine and / or faucet.

[0105] Next, the specific structure of the shunt assembly 17 will be described in detail in combination with the drawings.

[0106] Specifically, please refer to Figure 3 As shown, the shunt 1 further comprises a shunt assembly 17, which is provided with an overflow hole for guiding the purified water flowing from the purified water inlet 1143 to pass through the shunt assembly 17 and enter the water outlet cavity 1148. Further, the valve housing 11 has a backflow guide portion 1171, which is internally provided with a guide flow channel 1172 communicating with the backflow cavity 1146, and the backflow guide portion 1171 extends towards the inside of the water outlet cavity 1148 and is preferably connected to the valve body lower housing 117. The shunt assembly 17 is installed in the water outlet cavity 1148 of the valve housing 11, and the shunt assembly 17 can abut against the backflow guide portion 1171. According to the pressure difference formed by the purified water inlet 1143, the first water supply port 1144 and the second water supply port 1145, the shunt assembly 17 can produce a relative displacement towards the first water supply port 1144 side, so that the shunt assembly 17 is separated from the backflow guide portion 1171, and then the excess purified water can flow from the guide flow channel 1172 into the backflow cavity 1146, forming the above-mentioned excess water.

[0107] In this way, please refer to Figure 6 and Figure 7 As shown, when the faucet is used alone, the purified water flows from the purified water inlet 1143 into the valve housing 11 and directly flows out from the second water supply port 1145, at this time the shunt assembly 17 abuts and fits on the backflow guide portion 1171 to seal the guide flow channel 1172, so that the purified water will not flow back to the guide flow channel 1172.

[0108] When the tankless pipeline machine uses water alone, the purified water flows into the valve housing 11 from the purified water inlet 1143, and then enters the water outlet cavity 1148 through the water hole, and finally flows out from the first water outlet 1144 to the tankless pipeline machine. At this time, the pressure on the side of the shunt assembly 17 close to the first water outlet 1144 is less than the pressure on the side of the shunt assembly 17 away from the first water outlet 1144, that is, the water pressure formed by the purified water inlet 1143 and the second water outlet 1145 is greater than the water pressure on the side of the first water outlet 1144. The shunt assembly 17 can produce relative displacement towards the side of the first water outlet 1144, so that the shunt assembly 17 is separated from the backflow guide part 1171, and the excess purified water flows back to the guide flow channel 1172. When the tankless pipeline machine is closed, the shunt assembly 17 will reset towards the side of the backflow guide part 1171, and then the shunt assembly 17 abuts against the backflow guide part 1171 again to reseal the guide flow channel 1172. Therefore, the shunt 1 can flexibly cope with the water distribution requirements of the tankless pipeline machine when it uses water alone, so that the purified water can meet the water requirements of the tankless pipeline machine while reasonably handling the excess water, so as to avoid the waste of water resources and the risk of damaging the tankless pipeline machine due to excessive water pressure.

[0109] When the tankless pipeline machine and the faucet use water at the same time, part of the purified water flows out from the second water outlet 1145 to the faucet after flowing into the valve housing 11 from the purified water inlet 1143, and the other part enters the water outlet cavity 1148 through the water hole and flows out from the first water outlet 1144 to the tankless pipeline machine. Due to the decrease of the water pressure on the side of the second water outlet 1145, the pressure on the side of the shunt assembly 17 close to the first water outlet 1144 is not much different from the pressure on the side of the shunt assembly 17 away from the first water outlet 1144. At this time, the shunt assembly 17 abuts against the backflow guide part 1171, so that the excess purified water will not flow back to the guide flow channel 1172. In this way, the tankless pipeline machine and the faucet can both use water normally, and the stable operation of the entire purified drinking system is ensured.

[0110] Thus, because when the tankless pipeline machine is opened, the excess purified water can flow back, so as to avoid the water purifier because of the sudden change of the water consumption of the tankless pipeline machine (such as the change of water pressure caused by the frequent opening and closing of the tankless pipeline machine) and the water purifier frequently adjusts its working state. For example, if there is no backflow mechanism, when the tankless pipeline machine is suddenly closed, the instantaneous change of water pressure may impact the internal structure and working pressure of the water purifier, and with the backflow mechanism, the water pressure change can be buffered to a certain extent, and the pressure of the water purifier is reduced. In the case of simultaneous water use, the relative stable water flow distribution state is maintained through the action of the shunt assembly 17. If there is no shunt assembly 17, when the faucet and the tankless pipeline machine work at the same time, the sudden change of water consumption of one party (such as the sudden closing of the faucet) may cause a large fluctuation of the internal water pressure of the water purifier, resulting in frequent adjustment of the working state of the water purifier. The shunt assembly 17 can maintain a relatively stable water pressure and water flow distribution, reducing the frequent start-stop of the water purifier caused by the change of external water use.

[0111] In some embodiments, specifically according to Figure 3 As shown in the figure, the shunt assembly 17 described above includes a shunt balance film 172 and a balance spring 171, the shunt balance film 172 is provided with a diaphragm through hole 1724, and the overflow hole includes the diaphragm through hole 1724. Because the shunt balance film 172 is made of elastic material (such as silica gel, rubber and the like), the overflow hole can stretch and contract under the action of its own elastic force. The balance spring 171 is arranged between the shunt balance film 172 and the inner cavity wall of the water outlet cavity 1148, and the edge part of the shunt balance film 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 is large, the pressure on the side of the shunt balance film 172 close to the first water supply port 1144 is greatly different from the pressure on the side of the shunt assembly 17 away from the first water supply port 1144, the overflow hole becomes larger under the action of the pressure difference, and the amount of purified water flowing through the overflow hole increases. When the water consumption of the tankless pipeline machine becomes small, the overflow hole will automatically shrink, and the amount of purified water flowing through the overflow hole will decrease, so as to automatically maintain the pressure difference on both sides of the shunt balance film 172 and delay the reset of the shunt balance film 172. At this time, the first water supply port 1144 has no purified water flowing, and the shunt balance film 172 will reset under the action of the deformation recovery of the balance spring 171, thereby reducing the probability of frequent start-stop of the water purifier under the condition of low flow of the tankless pipeline machine.

[0112] In the embodiment, specifically according to Figure 16As shown, the shunt assembly 17 further comprises a diaphragm top cover 173 and a diaphragm base 174, the diaphragm top cover 173 is provided with a top cover through hole 1731, the diaphragm base 174 is provided with a base through hole 1741, the shunt balance membrane 172 is clamped between the diaphragm top cover 173 and the diaphragm base 174, the diaphragm top cover 173 is preferably connected with the diaphragm base 174 in a clamping manner, the top cover through hole 1731 and the base through hole 1741 both 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 an overflow 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.

[0113] As a preferred mode of the present embodiment, please refer to the specific Figure 16 As shown, the shunt balance membrane 172 is provided with a flexible check portion 1721 provided with a flow regulating port 1722, the flexible check portion 1721 is protrudingly arranged towards the diaphragm top cover 173 side and penetrates 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 portion 1721 can control the opening and closing size of the flow regulating port 1722 to adjust the increasing variable of the pure water flowing into the water outlet cavity, then by using the larger deformation of the flexible check portion 1721 compared with the overflow hole, when the water consumption of the tankless pipeline water machine is larger, the shunt balance membrane 172 has a larger pressure difference between the side close to the first water supply port 1144 and the side away from the first water supply port 1144, and can supply more pure water. The principle of the above-mentioned elastic and flexible overflow hole is the same, when the water consumption of the tankless pipeline water machine is smaller, the flexible check portion 1721 will automatically shrink and become smaller, and the amount of pure water flowing through the flexible check portion 1721 will decrease accordingly, so as to achieve the purpose of automatically maintaining the pressure difference between the two sides of the shunt balance membrane 172, and also can reduce the probability of frequent start and stop of the water purifier.

[0114] It should be noted that the above-mentioned way of setting the elastic and flexible overflow hole and the way of setting the flexible check portion 1721 are two options to reduce the probability of frequent start and stop of the water purifier under the condition of low flow of the tankless pipeline water machine. Of course, both can be used in combination.

[0115] In the above, the excess purified water in the outlet cavity 1148 can flow back to the backflow cavity 1146 under the regulation of the distribution assembly 17, the backflow cavity 1146 can converge the stabilized water flowing through the pressure regulating assembly 16 and the excess water flowing back to the distribution assembly 17, and output the converged water from the raw water outlet 1142 to the water purifier, so that the water source can be redistributed and utilized inside the direct drinking system, reducing the waste of water source. However, when the amount of the excess water flowing back to the backflow cavity 1146 from the outlet cavity 1148 is far less than the amount of the stabilized water flowing to the backflow cavity 1146 from the inlet cavity 1147, that is, the pressure on the side of the backflow cavity 1146 close to the outlet cavity 1148 is less than the pressure on the side of the backflow cavity 1146 close to the inlet cavity 1147, it is easy to cause the stabilized water flowing into the backflow cavity 1146 to flow back to the outlet cavity 1148, thereby affecting the water quality of the domestic water and the direct drinking water.

[0116] Based on this, a preferred mode in the embodiments of the present application is also disclosed, specifically please refer to Figure 3 The distribution device 1 also includes a one-way flow guide 13 arranged in the backflow cavity 1146 to prevent the stabilized water flowing through the inlet cavity 1147 from flowing back to the outlet cavity 1148, and to output the excess water flowing back to the backflow cavity 1146 from the outlet cavity 1148 to the water purifier after converging with the stabilized water, which not only avoids the stabilized water flowing through the inlet cavity 1147 from flowing back to the outlet cavity 1148 to cause the purified water in the outlet cavity 1148 to mix with the stabilized water, but also ensures the water quality and quantity of the purified water supplied by the distribution device 1. At the same time, the pressure of the outlet cavity 1148 and the inlet cavity 1147 is maintained, so that the water flow in the outlet cavity 1148, the inlet cavity 1147 and the backflow cavity 1146 can be in the designed direction and pressure condition, thereby ensuring the stability of the direct drinking system while simplifying the pipeline elements and connections of the direct drinking system.

[0117] The unexpected effect is that the one-way flow guide 13 is assembled in the backflow cavity 1146 of the valve housing 11, so that the assembly between the one-way flow guide 13 and the valve housing 11 is more compact. In the direct drinking system with limited space, the integration degree of such assembly is higher, the space occupation is saved, the pipeline layout of the direct drinking system is effectively simplified, and the risk of leakage caused by excessive pipeline connections is reduced. In addition, it can also prevent damage to the distribution device 1 and the direct drinking system caused by water hammer phenomenon. Understandably, when the external water supply pipeline pressure instantaneously rises, the inertia of the water flow will cause water hammer effect, generating a very high pressure wave. At this time, the one-way flow guide 13 can prevent the high pressure wave from impacting the one-way flow guide 13 in reverse direction, which is conducive to prolonging the service life of the distribution device 1 and reducing the maintenance cost of the distribution device 1 and the direct drinking system.

[0118] As a preferred mode of the present embodiment, specifically please refer to Figure 8 ,Figure 9 and Figure 10 As shown, the aforementioned unidirectional flow guide 13 includes a check valve 131 and a mixing guide 132. The check valve 131 has an inlet 1311 and an outlet 1312. The check valve 131 is used to control the flow of water from the inlet 1311 to the outlet 1312. Understandably, this water source refers to excess water flowing back from the water chamber 1148 toward the return chamber 1146. The mixing guide 132 has a flow channel 1321 inside. The mixing guide 132 has an extension 133 with an injection port 1331 protruding from the side of the check body 131. The extension 133 extends along the circumferential part of the mixing guide 132 and is located at the end of the mixing guide 132. One end of the check body 131 with an output port 1312 abuts against the extension 133 to form a mixing chamber 1332. At this time, the opening formed by the mixing guide 132, the extension 133, and the check body 131 is the injection port 1331. The injection port 1331 is connected to the mixing chamber 1332, and the output port 1312 is connected to the mixing chamber 1332. The input port 1311 is connected to the water outlet chamber 1148.

[0119] Furthermore, please refer to the specific details. Figure 6 and Figure 7 As shown, the injection port 1331 of the unidirectional flow guide 13 is positioned towards the water inlet chamber 1147, that is, the injection port 1331 is aligned with the water inlet chamber 1147, and the injection port 1331 is connected to the water inlet chamber 1147. Then, the pressure-stabilized water flowing into the return chamber 1146 will flow into the mixing chamber 1332 through the injection port 1331. The inlet port 1311 of the check body 131 is connected to the outlet chamber 1148, and the flow guide channel 1321 is connected to the raw water outlet 1142 of the lower shell 117 of the valve body. Then, excess water can only flow in from the inlet port 1311 of the check body 131 and enter the mixing chamber 1332 through the outlet port 1312. At this time, the excess water mixes with the pressure-stabilized water. After the excess water mixes with the pressure-stabilized water, it is guided by the flow guide channel 1321 to the raw water outlet 1142 and delivered to the water purifier. When the pressure in the mixing chamber 1332 is too high, that is, when the pressure on the side of the return chamber 1146 near the outlet chamber 1148 is less than the pressure on the side of the return chamber 1146 near the inlet chamber 1147, the check valve 131 will close automatically under the pressure, thereby preventing the pressure-stabilized water from flowing back to the outlet chamber 1148.

[0120] It should be further explained that, in order to ensure that the extension 133 can more smoothly abut against the end face of the check body 131 where the input port 1311 is located, please refer to the following for details. Figures 6 to 11As shown, the auxiliary support part 135 is arranged on one side of the check body 131 protruding from the mixing flow guide 132, is preferably distributed opposite to the extension part 133, and has a length dimension equal to that of the extension part 133, and an end of the auxiliary support part 135 away from the mixing flow guide 132 abuts against the check body 131. In this way, the auxiliary support part 135 and the extension part 133 both abut against the check body 131, not only achieving a more balanced force between the mixing flow guide 132 and the check body 131, but also improving the contact area between the mixing flow guide 132 and the check body 131, thereby ensuring the compactness and stability of the overall structure of the one-way flow guide 13.

[0121] Preferably, in particular in combination with Figure 6 and Figure 7 As shown, the outer side wall of the extension part 133 is provided with a positioning protrusion 1322, the extension direction of the positioning protrusion 1322 is consistent with that of the flow guide channel 1321, and the positioning protrusion 1322 is located on one side of the liquid injection port 1331. The valve shell 11 is provided with a positioning groove 1149 located inside the backflow cavity 1146, and the positioning groove 1149 extends along the extension direction of the backflow cavity 1146. When the one-way flow guide 13 is assembled into the backflow cavity 1146, the positioning protrusion 1322 is inserted into the positioning groove 1149, and through the cooperation between the positioning protrusion 1322 and the positioning groove 1149, the liquid injection port 1331 of the one-way flow guide 13 can be self-aligned with the water inlet cavity 1147, i.e., the pressure relief cavity discharge port 1151 is aligned with the liquid injection port 1331, and the liquid injection port 1331 fully covers the pressure relief cavity discharge port 1151, so that the stable water can flow more smoothly through the pressure relief cavity discharge port 1151 and the liquid injection port 1331 and into the mixing cavity 1332, thereby avoiding the problem of water pressure instability caused by turbulence or vortex due to the obstruction of stable water.

[0122] In addition, during the assembly of the one-way flow guide 13 into the backflow cavity 1146, only the positioning protrusion 1322 of the one-way flow guide 13 needs to be aligned and slid into the positioning groove 1149 inside the backflow cavity 1146, which improves the convenience and efficiency of assembling the one-way flow guide 13, facilitates the subsequent disassembly and maintenance of the one-way flow guide 13, improves the efficiency of repairing the flow divider 1, and ensures the stability of the flow divider 1 during long-term use. Since the positioning protrusion 1322 is limited by the positioning groove 1149, it effectively prevents the one-way flow guide 13 from being deflected and displaced in the backflow cavity 1146, ensures that the liquid injection port 1331 of the one-way flow guide 13 is always aligned with the pressure relief cavity discharge port 1151 of the valve shell 11, reduces the impact and vibration of the valve shell 11 caused by the stable water, and further reduces the noise of the flow divider 1 during use.

[0123] Further, in particular in combination with Figure 9 and Figure 10As shown, the end of the mixing flow guide 132 close to the extension 133 is the shoulder end of the mixing flow guide 132, and the shoulder end is offset from the extension 133 to form a shoulder portion 134. Understandably, the cross-sectional size of the shoulder end is larger than that of the extension 133, and the shoulder portion 134 is the portion where the shoulder end connects with the extension 133 and the cross-sectional size changes. As shown in Figure 7 As shown, the valve shell 11 is provided with a stepped limiting portion 1152 inside the return flow cavity 1146, that is, the inner wall of the passage of the return flow cavity 1146 is protruded to form the stepped limiting portion 1152 inside the return flow cavity 1146, and the shoulder end of the one-way flow guide 13 abuts against the stepped limiting portion 1152 of the valve shell 11, so that the shoulder portion 134 of the one-way flow guide 13 can enable the mixing flow guide 132 to move horizontally in the extension direction of the positioning protrusion 1322.

[0124] In this embodiment, the mixing flow guide 132 of the one-way flow guide 13 is inserted into the inside of the return flow cavity 1146 under the guidance of the positioning groove 1149, until the shoulder portion 134 abuts against the stepped limiting portion 1152 of the valve shell 11, thereby limiting the movement of the mixing flow guide 132 in the extension direction of the return flow cavity 1146, achieving the purpose of efficient positioning.

[0125] Preferably, as shown in Figure 8 , Figure 9 and Figure 10 As shown, the inner wall of the mixing cavity 1332 and the passage inner wall of the flow guide passage 1321 are provided with a drainage bottom slope 136 extending from the mixing cavity 1332 to the flow passage inner wall of the flow guide passage 1321. In this way, it can not only avoid the unstable phenomenon of large impact force and local turbulence caused by the height difference during the process of the stable water flowing from the mixing cavity 1332 to the flow guide passage 1321 in a short time, but also ensure that the stable water is sequentially mixed in the mixing cavity 1332, the flow guide passage 1321, and then transported from the raw water outlet 1142 to the water purifier in a relatively stable speed and state.

[0126] As a preferred mode of this embodiment, as shown in Figure 8 and Figure 9 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 arranged on the fixed shell 1313, and 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.

[0127] When the water pressure on the side of the input port 1311 is greater than the water pressure on the side of the output port 1312, the valve core body 1314 can open the input port 1311, so that the excess water flowing back to the water outlet cavity 1148 towards the backflow cavity 1146 can enter the fixed shell 1313 through the input port 1311, and then flow through the fixed shell 1313 and enter the mixing cavity 1332 from the output port 1312. When the water pressure on the side of the input port 1311 is less than or equal to the water pressure on the side of the output port 1312, the valve core body 1314 will reset to close the input port 1311, so that the stable water in the mixing cavity 1332 cannot flow back to the water outlet cavity 1148 through the fixed shell 1313, achieving the purpose of one-way flow control of excess water.

[0128] Preferably, as shown in Figure 10 and Figure 11 The valve core body 1314 includes a movable opening and closing part 13141 and an elastic reset part 13142. The elastic reset part 13142 is preferably a spring, but it can also be a component made of elastic material such as rubber or silicone. The elastic reset part 13142 is preferably sleeved on the movable opening and closing part 13141, and the two ends of the elastic reset part 13142 abut against the movable opening and closing part 13141 and the fixed shell 1313, respectively. Specifically, the movable opening and closing part 13141 is provided with a spring embedding slot, and the shape and size of the spring embedding slot are matched with those of the elastic reset part 13142. The end of the elastic reset part 13142 is embedded in the spring embedding slot to prevent the elastic reset part 13142 from deviating during deformation.

[0129] In this way, when the water pressure on the side of the input port 1311 is less than or equal to the water pressure on the side of the output port 1312, the sealing head 13143 of the movable opening and closing part 13141 abuts against the input port 1311, effectively preventing the stable water from flowing through the input port 1311. When the water pressure on the side of the input port 1311 is greater than the water pressure on the 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 pressure, and at the same time, the elastic reset part 13142 is extruded to deform, so that the input port 1311 is connected with the output port 1312. At this time, the excess water can enter the water outlet cavity 1148 through the input port 1311. It can be understood that when the water pressure on the side of the input port 1311 is again less than the water pressure on the side of the output port 1312, the sealing head 13143 of the movable opening and closing part 13141 moves towards the side of the input port 1311 under the action of the deformation recovery of the elastic reset part 13142, and then the sealing head 13143 abuts against the input port 1311 to prevent the stable water from flowing through the input port 1311 and entering the water outlet cavity 1148.

[0130] To ensure the sealing between the sealing head 13143 and the input port 1311, please refer to Figure 10 and Figure 11 As shown, the sealing head 13143 is provided with a first sealing groove extending along the circumference of the sealing head 13143, and a check sealing ring 13144 is embedded in the first sealing groove. Under the action of the check sealing ring 13144, the sealing between the sealing head 13143 and the input port 1311 can be effectively improved, and at the same time, the sealing head 13143 of the movable opening and closing part 13141 is ensured to have flexible contact with the fixed shell 1313 during the opening and closing process, reducing the wear of the check valve 131 during frequent opening and closing, thereby effectively improving the service life of the check valve 131 and the one-way flow guide.

[0131] Preferably, as shown in Figure 10 and Figure 11 The above fixed shell 1313 includes a valve seat shell 13131 and a retaining inner frame 13132, the valve seat 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 return part 13142 abuts against the retaining inner frame 13132, the input port 1311 is arranged on the valve seat shell 13131, and the output port 1312 is arranged on the retaining inner frame 13132. When assembling the check valve 131, first place the movable opening and closing part 13141 of the valve core body 1314 into the valve seat shell 13131, then sleeve the elastic return 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 shell 13131 and make the movable opening and closing part 13141 inserted into the retaining inner frame 13132, so as to complete the assembly of the check valve 131. At this time, the sealing head 13143 of the movable opening and closing part 13141 abuts and seals against the input port 1311 on the valve seat shell 13131, and the elastic return part 13142 is in a compressed deformed state. In this way, the valve seat shell 13131 and the retaining inner frame 13132 can be produced separately, reducing the manufacturing difficulty of the fixed shell 1313, thereby facilitating the reduction of the manufacturing cost of the fixed shell 1313. At the same time, it is also convenient for the assembly of the check valve 131, improves the assembly efficiency of the check valve 131, and reduces the assembly cost of the check valve 131.

[0132] Specifically, please refer to Figure 8The retaining inner frame 13132 is provided with a retaining arm 13134 located on the inner side of the output port 1312, i.e., the retaining arm 13134 extends from the retaining inner frame 13132 towards the inner side of the output port 1312. The retaining arm 13134 is provided with a guide insertion hole 13136 of the plug-in movable opening and closing part 13141. The shape of the guide insertion hole 13136 can be selected to be suitable for the shape of the end of the movable opening and closing part 13141. Of course, the shape of the guide insertion hole 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 and contacts the inner hole wall of the guide insertion hole 13136, so that the movable opening and closing part 13141 can reciprocate along the central axis direction of the guide insertion hole 13136, so that the guide insertion hole 13136 cooperates with the elastic reset part 13142 to ensure that the sealing head 13143 of the movable opening and closing part 13141 is accurately reset and abuts on the input port 1311. The end of the elastic reset part 13142 abuts the retaining arm 13134.

[0133] It should be noted that the specific Figures 8 to 11 As shown, the retaining arm 13134 is provided with a limiting boss 13135 protruding towards the movable opening and closing part 13141, and the guide insertion hole 13136 penetrates 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 guide insertion hole 13136. The end of the elastic reset part 13142 is sleeved on the limiting boss 13135, so that the limiting boss 13135 cooperates with the spring embedding slot provided on the movable opening and closing part 13141, which not only ensures that the elastic reset part 13142 is stably assembled in the fixed shell 1313, but also further prevents the elastic reset part 13142 from deviating during deformation.

[0134] Further, the specific Figure 10 In order to reduce the weight of the fixed shell 1313 and the check body 131, reduce the production materials of the fixed shell 1313, and further reduce 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 retaining inner frame 13132. The shape, size and number of the material reduction port 13133 are not limited here and can be set and adjusted according to the structure design and design requirements.

[0135] It should be noted that in order to ensure the sealing between the valve seat shell 13131 of the fixed shell 1313 and the inner wall of the reflux cavity 1146, please refer to Figures 6 to 11As shown, the valve seat shell 13131 is provided with a second sealing groove extending along the circumference of the valve seat shell 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 property between the fixed shell 1313 of the check body 131 and the inner wall of the reflux cavity 1146 can be effectively improved.

[0136] It should also be added here that, in order to firmly install the above-mentioned one-way flow guide 13 in the reflux cavity 1146 of the valve shell 11, please refer to the detailed description of the fixing structure of the one-way flow guide 13 in the reflux cavity 1146 of the valve shell 11 in combination with Figure 6 and Figure 7 As shown, a pipe joint 14 is assembled at the raw water outlet 1142, which is used to completely constrain the one-way flow guide 13 in the reflux cavity 1146, and a conduit can also be connected through the pipe joint 14.

[0137] In addition, as shown in Figure 3 , Figure 6 , Figure 7 The pipe joint 14 and the one-way flow guide 13 can also be configured with at least one fastening sealing ring 15. On the one hand, the end of the conduit is provided through the fastening sealing ring 15, which improves the sealing property between the conduit and the reflux cavity 1146, effectively prevents the water pressure-stabilized water from seeping out from the connection between the raw water outlet 1142 and the pipe joint 14, and makes the conduit more firmly connected to the flow divider 1. On the other hand, the elasticity of the fastening sealing ring 15 not only makes the pipe joint 14 and the one-way flow guide 13 flexibly connected, but also makes the fastening sealing ring 15 elastically deformed under the extrusion of the pipe joint 14 and the one-way flow guide 13 when the pipe joint 14 is assembled to the raw water outlet 1142. This deformation enables the fastening sealing ring 15 to automatically fill the assembly gap between the pipe joint 14 and the one-way flow guide 13 and to adaptively change its 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 for the gap change caused by factors such as expansion and vibration of the flow divider 1 during operation to a certain extent, thereby maintaining the stability of the assembly gap.

[0138] 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 suitable for being installed at the raw water inlet 1141, the pure water inlet 1143, the first water supply port 1144 and the second water supply port 1145. The model and size of the pipe joint 14 can be appropriately adjusted according to the raw water inlet 1141, the pure water inlet 1143, the first water supply port 1144 and the second water supply port 1145.

[0139] The above is the explanation and description of the one-way flow guide member according to the embodiments of the present application, and since the flow divider according to the embodiments of the present application adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0140] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the present application, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationships in the drawings are only used for exemplary illustration and cannot be understood as a limitation on the present application, for those skilled in the art, the specific meanings of the above-mentioned terms can be understood according to the specific circumstances.

[0141] The above is only the preferred embodiments of the present application, and does not limit the present application, any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A flow diverter, characterized by, Comprise: A valve shell comprising 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 are configured to form a water inlet cavity, a backflow cavity and a water outlet cavity, the water outlet cavity is communicated with the water inlet cavity through the backflow cavity; and, A one-way flow guide is arranged in the backflow passage, and the one-way flow guide comprises a check body and a mixed flow guide, the check body has an output port, the mixed flow guide is internally provided with a flow guide passage, and the mixed flow guide is provided with an extension part with a liquid injection port on one side of 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 the liquid injection port and the output port are both communicated with the mixing cavity, the liquid injection port is communicated with the water inlet cavity, and the input port is communicated with the water outlet cavity.

2. The shunt of claim 1, wherein, The check body comprises: A fixed shell, the input port and the output port are both arranged on the fixed shell; and A valve core body movably arranged in the inside of the fixed shell, the valve core body can open and close the input port according to the pressure difference between the input port and the output port.

3. The shunt of claim 2, wherein, The valve core body comprises: A movable opening and closing part; and An elastic reset part, both ends of the elastic reset part abut against the movable opening and closing part and the fixed shell respectively; Wherein, in the state that the water pressure on the side of the input port is less than or equal to the water pressure on the side of the output port, the sealing head of the movable opening and closing part abuts against and seals the input port; In the state that the water pressure on the side of the input port is greater than the water pressure on the side of the output port, the sealing head of the movable opening and closing part is away from the input port, and the elastic reset part is deformed, so that the input port is communicated with the output port.

4. The shunt of claim 3, wherein, The fixed shell comprises: A holding inner frame; and A valve seat shell sleeved on the outside of the holding inner frame; 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 arranged on the valve seat shell, and the output port is arranged on the holding inner frame.

5. The shunt of claim 4, wherein, The holding inner frame is provided with a holding branch arm on the inside of the output port, the holding branch arm is provided with a guide insertion hole for inserting the movable opening and closing part, and the end of the elastic reset part abuts against the holding branch arm.

6. The shunt of any one of claims 1 to 5, wherein, A drainage bottom slope is arranged between the cavity inner wall of the mixing cavity and the passage inner wall of the flow guide passage, and the drainage bottom slope extends from the mixing cavity to the flow passage inner wall of the flow guide passage.

7. The shunt of any one of claims 1 to 5, wherein, The mixed flow guide is provided with an auxiliary support part on one side of the check body, and one end of the auxiliary support part away from the mixed flow guide abuts against the check body.

8. The shunt of any one of claims 1 to 5, wherein, A pressure regulating assembly is further arranged in the water inlet cavity.

9. The shunt of any one of claims 1 to 5, wherein, A shunt assembly is further arranged in the water outlet cavity and is provided with an overflow hole; The valve body lower shell is provided with a backflow guide part, the inside of the backflow guide part is provided with a guide flow passage communicated with the backflow cavity, and the shunt assembly can abut against the backflow guide part to seal the guide flow passage.

10. The shunt of claim 9, wherein, The shunt assembly comprises: A shunt balance membrane provided with a diaphragm through hole, the overflow hole comprises the diaphragm through hole, and the shunt balance membrane is clamped between the valve body upper shell and the valve body lower shell; and A A balance spring is arranged between the shunt balance membrane and the inner cavity wall of the water outlet cavity.

11. The shunt of claim 10, wherein, The shunt assembly further comprises: A membrane top cover provided with a top cover through hole; and A membrane base provided with a base through hole; The shunt balance membrane is clamped between the membrane top cover and the membrane base, the top cover through hole and the base through hole are both communicated with the membrane through hole, and the top cover through hole, the base through hole and the membrane through hole form the overflow hole, one end of the balance spring abuts against the inner cavity wall of the water outlet cavity, and the other end of the balance spring abuts against the membrane top cover.

12. A net drink system characterized by, Comprise: The shunt device according to any one of claims 1 to 11; A water purifier; A tankless pipeline machine for heating or refrigerating a water source purified by the water purifier; A faucet, the faucet, the tankless pipeline machine, the water purifier and the water supply pipeline are all communicated with the shunt device.

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