Soft water valve

Abstract

The soft water valve comprises a valve element, a valve shell and a driving mechanism, a raw water inlet pipe, a raw water outlet, a soft water inlet, a salt suction opening and a waste water opening are formed in the valve shell, a valve cavity, a first water inlet channel, a salt suction channel, a second water inlet channel and a water outlet channel are formed in the valve shell, the raw water inlet pipe is normally communicated with the valve cavity, and the raw water outlet is normally communicated with the first water inlet channel. The first water inlet valve element controls connection and disconnection of the first water inlet channel and the valve cavity. The salt absorption valve core controls connection and disconnection of the salt absorption channel and the water outlet channel, and the water outlet channel is normally communicated with the soft water inlet; the water outlet channel is connected with the second water inlet channel, and the second water inlet valve element controls connection and disconnection of the second water inlet channel and the water outlet channel. When the soft water valve is in a flushing working mode, the second water inlet channel is communicated with the valve cavity, raw water enters the water outlet channel from the second water inlet channel, a part of water in the water outlet channel flows into the resin tank through the soft water inlet, and a part of water is used by a user from a port of the water outlet channel.

Description

Technical Field

[0001] This invention relates to the field of water treatment equipment technology, and more particularly to a soft water valve. Background Technology

[0002] As people's living standards improve, residents' requirements for the quality of domestic water also increase. Domestic water contains a large amount of calcium and magnesium ions, especially in northern regions, causing limescale buildup in kettles and other appliances, and leading to yellowing of clothes after washing. Water softening equipment, such as water softeners and integrated water purifiers, can effectively remove calcium and magnesium ions from domestic water, improving water hardness. The core component of water softening equipment is the softening valve, which controls the equipment's operation. Water softening equipment typically includes functions such as operation, flushing, and salt regeneration. After a period of use, the softening capacity decreases, requiring salt regeneration to restore its softening ability. After a period of use or storage, flushing is necessary to remove some impurities adsorbed by the resin. However, current softening valves cannot draw water during flushing, salt regeneration, and water replenishment modes, resulting in periods when users cannot draw water. Summary of the Invention

[0003] The purpose of this invention is to provide a soft water valve to solve the problem that users cannot draw water when using existing soft water valves in the flushing mode.

[0004] The soft water valve of the present invention can be implemented through the following technical solutions:

[0005] A soft water valve, comprising:

[0006] The valve core includes a first inlet valve core, a brine suction valve core, and a second inlet valve core;

[0007] The valve housing includes a raw water inlet pipe, a raw water outlet, a soft water inlet, a brine suction port, and a wastewater outlet. The raw water outlet and the soft water inlet are connected via a resin tank. The valve housing contains a valve cavity, a first inlet channel, a brine suction channel, a second inlet channel, and an outlet channel. The first inlet channel, the brine suction channel, and the second inlet channel are all connected to the valve cavity. The raw water inlet pipe is normally connected to the valve cavity, the raw water outlet is normally connected to the first inlet channel, and the wastewater outlet is connected to the inlet channel. The first inlet valve core controls the connection and disconnection between the first inlet channel and the valve cavity.

[0008] The brine inlet is connected to the brine suction channel, and the brine suction valve core controls the opening and closing of the brine suction channel and the water outlet channel. The water outlet channel is normally open to the soft water inlet. The water outlet channel is connected to the second water inlet channel, and the second water inlet valve core controls the opening and closing of the second water inlet channel and the water outlet channel.

[0009] A drive mechanism is used to drive the first inlet valve core, the brine suction valve core, and the second inlet valve core to move, so that the soft water valve switches between water production mode, flushing mode, brine suction and regeneration mode, and water replenishment mode.

[0010] In one embodiment, in the flushing mode, the first water inlet channel is disconnected from the valve chamber, the brine suction channel is disconnected from the water outlet channel, and the second water inlet channel is connected to the water outlet channel.

[0011] In one embodiment, the brine valve core has a hollow channel with a Venturi tube inside. The hollow channel has a raw water inlet, a brine inlet, and a mixed water outlet. The Venturi tube has an inlet hole, a suction port, and an outlet hole. The suction port is connected to the brine inlet, the inlet hole is connected to the raw water inlet, and the outlet hole is connected to the mixed water outlet.

[0012] In one embodiment, the valve body is further provided with a soft water outlet pipe, which is normally connected to the water outlet channel. The brine suction channel is connected to the soft water outlet pipe, and the brine suction valve core controls the opening and closing of the brine suction channel and the soft water outlet pipe. The soft water outlet pipe and the raw water inlet pipe are located on the same side.

[0013] In one embodiment, the first inlet valve core and / or the second inlet valve core includes a piston rod and a plug body. The piston rod is fixedly connected to the drive mechanism, the plug body is located at the end of the piston rod, and a water-passing groove is formed on the outer peripheral wall of the piston rod.

[0014] In one embodiment, the piston rod is provided with a first seal and a second seal, the first seal being located at the plug body, and the water passage groove being located between the first seal and the second seal.

[0015] In one embodiment, the valve housing further includes a valve cover for sealing the valve cavity, the valve cover having a plurality of guide tubes through which the valve core passes.

[0016] In one embodiment, the valve cover is provided with a plurality of connecting rods, and the drive mechanism is provided with a fixing plate for mounting the valve core, the fixing plate being slidably sleeved on the connecting rods.

[0017] In one embodiment, the system further includes a battery assembly and a PCB board. The battery assembly includes a battery compartment and a battery. The battery is installed in the battery compartment and is electrically connected to the PCB board. The drive mechanism is electrically connected to the PCB board.

[0018] In one embodiment, the drive mechanism has a housing, the battery compartment is located outside the housing, and the valve housing has a fixing claw. The fixing claw is positioned opposite to the battery compartment so that the fixing claw cooperates with the battery compartment to limit the battery position.

[0019] Compared with existing technologies, the advantages of the soft water valve of the present invention are as follows: the raw water inlet pipe is always connected to the valve cavity, allowing raw water to directly enter the valve cavity; the raw water outlet is always connected to the first inlet channel; and the outlet channel is always connected to the soft water inlet. Controlling the connection between the first and second inlet channels controls the switching of the raw water flow direction, thus achieving switching between water production and flushing modes. The outlet channel is connected to the second inlet channel. When the soft water valve is in flushing mode, the second inlet channel is connected to the valve cavity, allowing raw water to enter the outlet channel from the second inlet channel. A portion of the water in the outlet channel flows into the resin tank through the soft water inlet, while another portion is supplied to the user through the outlet channel port, thus ensuring that flushing does not affect the user's water access. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. The following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the soft water valve according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the soft water valve structure from a bottom view according to an embodiment of the present invention;

[0023] Figure 3 This is an exploded view of the soft water valve in an embodiment of the present invention;

[0024] Figure 4 This is a top view schematic diagram of the soft water valve according to an embodiment of the present invention;

[0025] Figure 5 yes Figure 4 A cross-sectional view along line AA, showing the position of the first inlet valve core in the first inlet channel when the soft water valve is in operation of the water production mode;

[0026] Figure 6 yes Figure 4 A cross-sectional view along line BB, showing the position of the second inlet valve core in the second inlet channel when the soft water valve is in water production mode;

[0027] Figure 7 yes Figure 4A cross-sectional view along line CC shows the first position of the brine suction valve core in the brine suction channel when the soft water valve is operating in water production or flushing mode.

[0028] Figure 8 yes Figure 4 A cross-sectional view along line AA, showing the position of the first inlet valve core in the first inlet channel when the soft water valve is in flushing mode;

[0029] Figure 9 yes Figure 4 A cross-sectional view along line BB, showing the position of the second inlet valve core in the second inlet channel when the soft water valve is in flushing mode;

[0030] Figure 10 yes Figure 4 A cross-sectional view along line CC shows the brine valve core in the second position in the brine suction channel when the soft water valve is operating in water production or flushing mode.

[0031] Figure 11 yes Figure 4 A cross-sectional view along line AA shows the first inlet valve core in the inlet channel during salt regeneration or water replenishment.

[0032] Figure 12 yes Figure 4 A cross-sectional view along line BB shows the second inlet valve core in the first position of the second inlet channel during brine regeneration or water replenishment.

[0033] Figure 13 yes Figure 4 A cross-sectional view along line CC, showing the position of the brine valve core in the brine suction channel when the soft water valve is in brine suction regeneration mode;

[0034] Figure 14 yes Figure 4 A cross-sectional view along line AA, showing the soft water valve in the second position of the first inlet valve core in the first inlet channel during brine regeneration or water replenishment mode.

[0035] Figure 15 yes Figure 4 A cross-sectional view along line BB shows the second inlet valve core in the second inlet channel during the brine regeneration or water replenishment mode of the soft water valve.

[0036] Figure 16 yes Figure 4 A cross-sectional view along line CC, showing the position of the brine suction valve core in the brine suction channel when the soft water valve is in replenishment mode.

[0037] The diagram shows: 1. Valve core; 11. First inlet valve core; 111. Piston rod; 112. Plug body; 113. Water passage groove; 114. First seal; 115. Second seal; 12. Brine suction valve core; 121. Hollow channel; 1211. Raw water inlet; 1212. Brine inlet; 1213. Mixed water outlet; 122. Venturi tube; 1221. Inlet hole; 1222. Suction port; 1223. Outlet hole; 13. Second inlet valve core.

[0038] 2. Valve housing; 21. Valve chamber; 22. First inlet channel; 221. Wastewater outlet; Flow limiting section 222; 23. Brine suction channel; 232. Brine suction port; 24. Second inlet channel; 25. Outlet channel; 26. Raw water inlet pipe; 261. Raw water outlet; 27. Soft water outlet pipe; 271. Soft water inlet; 28. Valve cover; 281. Guide tube; 282. Connecting rod; 29. ​​Fixing claw;

[0039] 3. Drive mechanism; 31. Fixing plate; 32. Power unit; 33. Housing; 331. Battery compartment; 4. Battery; 5. PCB board. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be interpreted as representing quantity; "multiple" means two or more. The terms "first position" and "second position" are used only to describe the displacement changes of the valve core as it moves within the channel.

[0042] like Figure 1-3 As shown, this invention provides a water softener valve for controlling the operation of a water softening device. The water softener valve includes a valve core 1, a valve housing 2, and a drive mechanism 3. The valve core 1 includes a first inlet valve core 11, a brine suction valve core 12, and a second inlet valve core 13. The valve housing 2 has a valve cavity 21, a first inlet channel 22, a brine suction channel 23, a second inlet channel 24, and an outlet channel 25. The first inlet valve core 11 is movably disposed in the first inlet channel 22, the brine suction valve core 12 is movably disposed in the brine suction channel 23, and the second inlet valve core 13 is movably disposed in the second inlet channel 24. The drive mechanism 3 drives the first inlet valve core 11, the brine suction valve core 12, and the second inlet valve core 13 to move, thereby switching the water softener valve between a water production mode, a flushing mode, a brine suction and regeneration mode, and a water replenishment mode.

[0043] The valve housing 2 is equipped with a raw water inlet pipe 26, a raw water outlet 261, a soft water inlet 271, a brine suction port 232, and a wastewater outlet 221. The raw water outlet 261 and the soft water inlet 271 are connected through a resin tank, thus forming a water flow path inside the resin tank. The first water inlet channel 22, the brine suction channel 23, and the second water inlet channel 24 are all connected to the valve chamber 21. The raw water inlet pipe 26 is normally open to the valve chamber 21, meaning that raw water directly enters the valve chamber 21. The first water inlet valve core 11 controls the opening and closing of the first water inlet channel 22 and the valve chamber 21, that is, the first valve core 22 controls whether the water in the valve chamber 21 enters the first water inlet channel 22. The raw water outlet 261 is normally open to the first water inlet channel 21. By controlling the opening of the first water inlet channel 21, the flow of raw water can be controlled to enter the resin tank from the raw water outlet 261. Wastewater outlet 221 is connected to the first inlet channel 21. The position of the first inlet valve core 11 within the first inlet channel 21 controls the connection between wastewater outlet 221 and raw water outlet 261. Brine inlet 232 is connected to brine suction channel 23. The brine suction valve core 12 controls the connection between brine suction channel 23 and outlet channel 24. Outlet channel 25 is connected to the second inlet channel 24. The second inlet valve core 13 controls the connection between the second inlet channel 24 and outlet channel 25; that is, the position of the second inlet valve core 13 within the second inlet channel 24 controls the connection between the second inlet channel 24 and outlet channel 25. Outlet channel 24 is normally open to soft water inlet 271. Through soft water inlet 271, raw water or brine can be transported to the resin tank, or soft water produced by the resin tank can be transported to outlet channel 24, and finally delivered to the user.

[0044] In this embodiment, the soft water valve controls the flow of the first inlet channel 22 and the second inlet channel 24 by controlling the first inlet valve 11 and the second inlet valve 13, thus enabling switching between the water production mode and the flushing mode. When the soft water valve is in the flushing mode, the second inlet channel 24 is connected to the valve chamber 21, and raw water enters the second inlet channel 24. The raw water is then divided into two paths: one flows from the soft water inlet 271 into the resin tank, and the other flows into the outlet channel 25. The outlet channel 25 can be directly connected to the user's water supply terminal, allowing the user to use raw water without affecting the user's water intake.

[0045] like Figure 7 , Figure 10 , Figure 13 and Figure 16As shown, the brine suction valve core 12 has a hollow channel 121, in which a venturi tube 122 is installed. The hollow channel 121 has a raw water inlet 1211, a brine inlet 1212, and a mixed water outlet 1213. The raw water inlet 1211 is used for raw water to flow into the hollow channel 121. The venturi tube 122 has an inlet hole 1221, a suction port 1222, and an outlet hole 1223. The inlet hole 1221 is connected to the raw water inlet 1211, and the suction port 1222 is connected to the brine inlet 1212. This allows water from the brine inlet 1212 to be drawn into the suction port 1222, and the water flowing in from the inlet hole 1221 is mixed. The mixture is then ejected from the outlet hole 1223 and finally flows out from the mixed water outlet 1213. When the soft water valve is in the brine suction mode, the brine suction valve core 12 moves to the brine suction port 232 and the brine inlet 1212. At this time, the brine suction valve core 12 can mix the brine with the raw water to achieve the water mixing function. Therefore, there is no need to set up a separate user water mixing channel in the valve body 2, which simplifies the design of each channel inside the valve body 2.

[0046] like Figure 3 , Figure 6 , Figure 8 As shown, the first inlet valve core 11 and the second inlet valve core 13 are both configured to include a piston rod 111 and a plug body 112. The piston rod 111 is fixedly connected to the drive mechanism 3, and the plug body 112 is located at the end of the piston rod 111. The plug body 112 is used to control the opening of the first inlet channel 22 or the second inlet channel 24. A water passage groove 113 is formed on the outer peripheral wall of the piston rod 112. For example, when the plug body 112 on the first inlet valve core 11 blocks the first inlet channel 22, water cannot flow through the first inlet channel 22; when the first inlet valve core 11 opens the first inlet channel 22, water can flow through the water passage groove 113. Specifically, the piston rod 111 is provided with a first seal 114 and a second seal 115. The first seal 114 is located at the plug body 112, and the water passage groove 113 is located between the first seal 114 and the second seal 115, thereby forming two sealing surfaces on the piston rod 111. Correspondingly, a flow-limiting section 222 is provided on the first water inlet channel 22. In the first water inlet channel 22, the wastewater outlet 221 is normally connected to the flow-limiting section 222, and the plug 111 is sealed to the flow-limiting section 222. When the plug 112 is located in the flow-limiting section 222, the first wastewater outlet 221 is blocked, and there is no connection between the wastewater outlet 221 and the raw water outlet 261.

[0047] like Figure 1-7As shown, the valve housing 2 is equipped with a soft water outlet pipe 27, which is normally connected to the outlet channel 25. The soft water outlet pipe 27 and the raw water inlet pipe 27 are located on the same side, making the overall size of the valve housing 2 small and convenient for users to install soft water equipment. The brine suction channel 23 is connected to the soft water outlet pipe 27, and the brine suction valve core 12 controls the opening and closing of the brine suction channel 23 and the soft water outlet pipe 27. When the brine suction channel 23 is connected to the soft water outlet pipe 27, the brine suction port 232 is in the conductive state. At this time, the water in the brine suction channel 23 can be discharged from the soft water outlet pipe 27, thereby realizing the automatic discharge of water from the brine tank.

[0048] like Figure 5-16 As shown, the soft water valve in this embodiment has a water production mode, a flushing mode, a brine regeneration mode, and a water replenishment mode. The four modes can be switched by controlling the movement of the first inlet valve core 11, the brine valve core 12, and the second inlet valve core 13.

[0049] In water production mode, valve chamber 21 is connected to the first inlet channel 22, and the first inlet valve core 11 blocks the wastewater outlet 221, allowing raw water to enter the first inlet channel 22 and flow into the resin tank from the raw water outlet 261. The second inlet valve core 13 blocks the second inlet channel 13, and the soft water formed after resin treatment flows from the soft water inlet 17 into the outlet channel 25, and finally flows out from the soft water outlet pipe 27. At the same time, the brine suction valve core 12 blocks the brine suction channel 23.

[0050] In the rinsing mode, by controlling the position of the first inlet valve core 11 in the first inlet channel 22, the first inlet channel 22 is disconnected from the valve chamber 21, and the wastewater outlet 221 is opened; by controlling the position of the second inlet valve core 13 in the second inlet channel 24, the second inlet channel 24 is opened to the valve chamber 21, and the second inlet channel 24 is opened to the outlet channel 25; the raw water in the valve chamber 21 enters the second inlet channel 24, and then flows from the soft water inlet 271 into the resin tank to clean the resin, and some water flows from the outlet channel 25 to the soft water outlet pipe 27 for user use; the wastewater generated from cleaning the resin flows from the raw water outlet 261 into the first inlet channel 22, and finally is discharged to the outside from the wastewater outlet 221; at this time, the brine suction valve core 12 blocks the brine suction channel 23.

[0051] In the salt absorption and regeneration mode, by controlling the position of the salt absorption valve core 12 in the salt absorption channel 23, the salt absorption channel 23 is connected to the valve chamber 21, and the brine inlet 1212 of the salt absorption valve core 12 is directly opposite the salt absorption port 232; by controlling the position of the first water inlet valve core 11 in the first water inlet channel 22, the first water inlet channel 22 is disconnected from the valve chamber 21, and the wastewater port 221 is connected; the brine in the salt tank is drawn into the salt absorption channel 23 from the salt absorption port 232, then flows into the water outlet channel 25 from the soft water outlet pipe 271, and finally flows into the resin tank from the soft water inlet 271, thereby regenerating the resin; the wastewater generated by the ion exchange between the brine and the resin enters the first water inlet channel 22 from the raw water outlet 261, and is finally discharged to the outside from the wastewater port 221. In this embodiment, the brine suction valve core 12 integrates a venturi tube 122. When the brine suction port 232 is in the open state, raw water enters the venturi tube 122, generating negative pressure. This negative pressure draws the brine from the brine tank through the brine suction port 232 and mixes it with the raw water to form mixed water. The mixed water flows out from the mixed water outlet 1213 into the brine suction channel 23, and then into the soft water outlet pipe 271. By controlling the brine suction valve core 12 to simultaneously achieve the opening of the mixing and brine delivery channels, the flow channel design in the valve body 2 is also simpler, and the control is more precise.

[0052] In the water replenishment mode, by controlling the position of the brine suction valve core 12 in the brine suction channel 23, the brine suction channel 23 is connected to the valve chamber 21, and the brine inlet 1212 of the brine suction valve core 12 is misaligned with the brine suction port 232. The brine suction port 232 is not blocked, and the raw water in the valve chamber 21 flows into the brine suction channel 23, and then flows into the brine tank through the brine suction port 232. At this time, the first water inlet valve core 11 blocks the first water inlet channel 22, and the second water inlet valve core 13 blocks the second water inlet channel 24.

[0053] In this embodiment, the first inlet valve core 11, the brine suction valve core 12, and the second inlet valve core 13 can move synchronously or asynchronously via the drive mechanism 3, enabling switching between water production mode, flushing mode, brine suction and regeneration mode, and water replenishment mode. Of course, to improve the precision of the soft water valve, it is preferable to use the drive mechanism 3 to synchronously drive the first inlet valve core 11, the brine suction valve core 12, and the second inlet valve core 13.

[0054] like Figure 1-3 As shown, the valve body 2 also includes a valve cover 28, which is used to seal the valve cavity 21 and serve to seal the water. The valve cover 28 is provided with several guide tubes 281, through which the valve core 1 passes and is positioned in the corresponding channels. The guide tubes 281 restrict and guide the movement of the valve core, preventing leakage caused by valve core wobbling when switching operating modes.

[0055] Furthermore, in this embodiment, the valve cover 28 is provided with several connecting rods 282, and the drive mechanism 3 is provided with a power unit 32 and a fixing plate 31. The fixing plate 31 is used to install the valve core 1. The fixing plate 31 is slidably sleeved on the connecting rods 282, so that the first water inlet valve core 11, the salt suction valve core 12 and the second water inlet valve core 13 are simultaneously installed on the fixing plate 31 to achieve synchronous movement, without the need to set up multiple drive mechanisms 3.

[0056] Furthermore, the water softener valve in this embodiment also includes a battery assembly and a PCB board 5. The battery assembly includes a battery compartment 331 and a battery 4. The battery 4 is installed in the battery compartment 331 and is electrically connected to the PCB board 5. The drive mechanism 3 is also electrically connected to the PCB board 5. The battery serves as a backup power source for the PCB board 5. When the location where the user installs the water softener does not have a power outlet or other power interface, it can be powered by the battery 4, thereby solving the problem of limited installation location for the water softener and greatly improving the user experience.

[0057] Specifically, in this embodiment, the drive mechanism 3 has a housing 33, the battery compartment 331 is located outside the housing 33, and the valve housing 2 has a fixing claw 29. The fixing claw 29 is positioned opposite the battery compartment 331 so that the battery 4 is limited when the fixing claw 29 engages with the battery compartment 331. By placing the battery compartment 331 on the housing 33 of the drive mechanism 3, the number of wiring connections can be reduced, and the space between the drive mechanism 3 and the valve housing 2 can be fully utilized through the clamping action of the fixing claw 29, further reducing the overall size of the soft water valve.

[0058] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. For those skilled in the art, various modifications and improvements can be made without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. The protection scope of this patent should be determined by the appended claims.

Claims

1. A soft water valve, characterized in that, include: The valve core includes a first inlet valve core, a brine suction valve core, and a second inlet valve core; The valve housing includes a raw water inlet pipe, a raw water outlet, a soft water inlet, a brine suction port, and a wastewater outlet. The raw water outlet and the soft water inlet are connected via a resin tank. The valve housing contains a valve cavity, a first inlet channel, a brine suction channel, a second inlet channel, and an outlet channel. The first inlet channel, the brine suction channel, and the second inlet channel are all connected to the valve cavity. The raw water inlet pipe is normally connected to the valve cavity, the raw water outlet is normally connected to the first inlet channel, and the wastewater outlet is connected to the first inlet channel. The first inlet valve core controls the connection and disconnection between the first inlet channel and the valve cavity. The brine inlet is connected to the brine suction channel, and the brine suction valve core controls the opening and closing of the brine suction channel and the water outlet channel. The water outlet channel is normally open to the soft water inlet. The water outlet channel is connected to the second water inlet channel, and the second water inlet valve core controls the opening and closing of the second water inlet channel and the water outlet channel. A drive mechanism is used to drive the first inlet valve core, the brine suction valve core, and the second inlet valve core to move, so that the soft water valve switches between water production mode, flushing mode, brine suction and regeneration mode, and water replenishment mode.

2. The soft water valve according to claim 1, characterized in that, The brine suction valve core has a hollow channel with a venturi tube inside. The hollow channel has a raw water inlet, a brine inlet, and a mixed water outlet. The venturi tube has an inlet hole, a suction port, and an outlet hole. The suction port is connected to the brine inlet, the inlet hole is connected to the raw water inlet, and the outlet hole is connected to the mixed water outlet.

3. The soft water valve according to claim 1, characterized in that, The valve body is also provided with a soft water outlet pipe, which is normally connected to the water outlet channel. The brine suction channel is connected to the soft water outlet pipe. The brine suction valve core controls the opening and closing of the brine suction channel and the soft water outlet pipe. The soft water outlet pipe and the raw water inlet pipe are located on the same side.

4. The soft water valve according to claim 1, characterized in that, The first inlet valve core and / or the second inlet valve core include a piston rod and a plug body. The piston rod is fixedly connected to the drive mechanism, the plug body is located at the end of the piston rod, and a water-passing groove is formed on the outer peripheral wall of the piston rod.

5. The soft water valve according to claim 4, characterized in that, The piston rod is provided with a first seal and a second seal, the first seal is located at the piston body, and the water passage groove is located between the first seal and the second seal.

6. The soft water valve according to claim 5, characterized in that, The first water inlet channel is equipped with a flow-limiting section, and the wastewater outlet is normally connected to the flow-limiting section.

7. The soft water valve according to claim 1, characterized in that, The valve housing also includes a valve cover, which is used to seal the valve cavity. The valve cover is provided with a plurality of guide tubes, through which the valve core passes.

8. The soft water valve according to claim 7, characterized in that, The valve cover is provided with several connecting rods, and the drive mechanism is provided with a fixing plate for valve core installation. The fixing plate is slidably sleeved on the connecting rods.

9. The soft water valve according to claim 1, characterized in that, It also includes a battery assembly and a PCB board. The battery assembly includes a battery compartment and a battery. The battery is installed in the battery compartment and is electrically connected to the PCB board. The drive mechanism is electrically connected to the PCB board.

10. The soft water valve according to claim 9, characterized in that, The drive mechanism has a housing, the battery compartment is located outside the housing, and the valve housing has a fixing claw. The fixing claw is positioned opposite to the battery compartment so that the fixing claw cooperates with the battery compartment to limit the battery position.

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