Water softening valve and water softener

Abstract

The present application relates to the technical field of water treatment, and provides a water softening valve and a water softener. The water softening valve comprises a valve casing, a primary valve element, and a secondary valve element, wherein the valve casing comprises a raw water inlet, a soft water outlet, a primary cavity, a secondary cavity, a raw water outlet, and a soft water inlet; the raw water outlet is communicated with the primary cavity, the soft water outlet is communicated with the secondary cavity, and a communicating channel is formed between the primary cavity and the secondary cavity; the primary valve element is located in the primary cavity, and the primary valve element is used for enabling and disabling communicating between the communicating channel and the raw water inlet; the secondary valve element is located in the secondary cavity, the secondary valve element comprises a secondary fixed valve plate and a secondary moving valve plate, the secondary fixed valve plate is provided with a softening connecting hole, the softening connecting hole is communicated with the soft water inlet, the secondary moving valve plate is provided with a secondary valve water inlet, and the secondary valve water inlet is communicated with the secondary cavity; the raw water inlet is communicated with the communicating channel by means of the primary valve element, the secondary valve water inlet is communicated with the softening connecting hole, and an opening of the secondary valve water inlet faces a secondary communicating port at an end portion of the communicating channel. According to the water softening valve provided by the present application, function switching is implemented by using a dual-cavity and dual-valve structure, and water can enter the secondary valve element more smoothly.

Description

Soft water valve and water softener

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 2023225568831, filed on September 19, 2023, entitled “Soft Water Valve and Water Softener,” which is incorporated herein by reference in its entirety. Technical Field

[0003] The present application relates to the field of water treatment technology, and in particular to a water softener and a water softener. Background Art

[0004] As people's living standards continue to improve, their demands for daily water use are also becoming increasingly stringent. Residential water contains high levels of calcium and magnesium ions. Long-term use of hard water can negatively impact people's quality of life. For example, prolonged use of hard water can cause clothes to yellow and lose their luster. Scale can clog residential water pipes, and some heating equipment can suffer from scale buildup, which can affect heat transfer efficiency and, over time, damage the equipment. Reducing or removing the calcium and magnesium ions in water, softening hard water, offers numerous benefits. For example, bathing with soft water prevents dry skin and skincare with soft water results in smoother skin. It also improves heat transfer efficiency in water heaters and reduces maintenance costs.

[0005] In related technologies, water softening equipment is commonly used to remove calcium and magnesium ions from water. These equipment is typically equipped with a water softening valve, which has a concentrated function. During the state switching process, the valve experiences significant movement resistance, resulting in a low water flow rate. Furthermore, the power consumption and structural stability of the water softening valve need to be improved, and the structure of the water softening valve needs to be optimized.

[0006] Summary of the Invention

[0007] This application aims to solve at least one of the technical problems existing in the related art. To this end, this application proposes a soft water valve. Through a dual-chamber, dual-valve structure, raw water can be fed into a secondary valve core and a secondary chamber through a main valve core and a connecting channel. The structural arrangement of the secondary valve core allows for smoother water inflow and reduces water inlet resistance.

[0008] The present application also proposes a water softener.

[0009] The soft water valve provided in an embodiment of the present application includes:

[0010] A valve housing comprising a raw water inlet, a soft water outlet, a main chamber, a secondary chamber, a raw water outlet, and a soft water inlet; the raw water outlet and the soft water inlet can be connected via a softening device, the raw water outlet is connected to the main chamber, the soft water outlet is connected to the secondary chamber, a communication channel is provided between the main chamber and the secondary chamber, a secondary communication port is provided on the wall of the secondary chamber, and the secondary communication port is located at the outlet end of the communication channel;

[0011] A main valve core, located in the main cavity, and used to connect and disconnect the communication channel and the raw water inlet;

[0012] an auxiliary valve core located in the auxiliary cavity, comprising an auxiliary static valve disc and an auxiliary movable valve disc movable relative to the auxiliary static valve disc, the auxiliary static valve disc being provided with a softening connection hole communicating with the soft water inlet, the auxiliary movable valve disc being provided with an auxiliary valve water inlet communicating with the auxiliary cavity to connect and disconnect the soft water inlet and the auxiliary cavity;

[0013] Based on the main valve core being connected to the raw water inlet and the communication channel, and the auxiliary valve water inlet being connected to the softening connection hole, the opening of the auxiliary valve water inlet faces the auxiliary communication port.

[0014] According to an embodiment of the present application, a soft water valve comprises a valve housing, a main valve core, and a secondary valve core. The valve housing is provided with a main cavity and a secondary cavity. The main valve core is located in the main cavity, and the secondary valve core is located in the secondary cavity. The main valve core is used to adjust the connection and disconnection between the connecting channel and the raw water inlet. The secondary connecting port of the connecting channel is connected to the secondary cavity. The secondary valve core is used to adjust the connection and disconnection of each flow channel corresponding to the secondary cavity. Through the regulation of the soft water valve, the multiple functions of the water softener are realized. Specifically, when the main valve core is connected to the raw water inlet and the connecting channel, the raw water can enter the secondary cavity through the main valve core and the connecting channel. Since the opening of the secondary valve water inlet is facing the secondary connecting port, the secondary valve water inlet can guide the water in the connecting channel into the softening connection hole, making the water inlet from the secondary connecting port to the softening connection hole smoother and less affected by the water level in the secondary cavity.

[0015] In some embodiments, the auxiliary valve disc is connected to the auxiliary driving part.

[0016] In some embodiments, the auxiliary valve disc includes a main body and a shielding portion fixedly connected to the main body.

[0017] In some embodiments, the main body is sealed to the auxiliary static valve plate.

[0018] In some embodiments, the shielding portion and the main body shield the shaft of the auxiliary driving portion.

[0019] In some embodiments, a flow guide space is formed between the shielding portion and the auxiliary static valve plate.

[0020] In some embodiments, the area corresponding to the shielding portion forms the opening of the auxiliary valve water inlet.

[0021] In some embodiments, the shielding portion covers at least a portion of the softening connection hole in an orthographic projection of the auxiliary static valve plate.

[0022] In some embodiments, in the backwash mode, the softening valve is fluidically connected in a direction from the auxiliary valve water inlet to the softening connection hole.

[0023] In some embodiments, when the soft water valve is in a backwash mode, the secondary communication port, the guide space and the soft water inlet are in communication.

[0024] In some embodiments, the thickness of the shielding portion is smaller than the thickness of the main body portion.

[0025] In some embodiments, the valve housing is provided with a salt tank connection port.

[0026] In some embodiments, based on the communication channel disconnecting the secondary chamber from the raw water inlet, the secondary valve core is used to connect and disconnect the salt tank connection port and the soft water inlet.

[0027] In some embodiments, based on the communication channel connecting the secondary chamber with the raw water inlet, the secondary valve core is used to connect and disconnect the salt tank connection port and the secondary chamber.

[0028] In some embodiments, a softening channel is provided between the soft water inlet and the softening connection hole.

[0029] In some embodiments, the softening channel and the communication channel are located on the same side of the valve housing.

[0030] In some embodiments, the softening channel and the communicating channel share a portion of the shell wall.

[0031] In some embodiments, a raw water outlet channel is formed between the main cavity and the raw water outlet.

[0032] In some embodiments, a water outlet channel is formed between the soft water outlet and the sub-cavity.

[0033] In some embodiments, the connecting channel and the softening channel are provided between the original outlet channel and the water outlet channel.

[0034] In some embodiments, the valve housing includes a shell and a softening connection portion for connecting the softening device.

[0035] In some embodiments, the housing is provided with the raw water inlet, the soft water outlet, the main chamber and the sub-chamber.

[0036] In some embodiments, the softening connection portion is provided with the raw water outlet and the soft water inlet.

[0037] In some embodiments, the shell and the softening connection portion form the original outlet channel, the water outlet channel, the connecting channel and the softening channel.

[0038] In some embodiments, the housing is provided with a mounting end surface.

[0039] In some embodiments, the original outlet channel, the water outlet channel, the connecting channel, and the softening channel all form notches on the side where the assembly end surface is located.

[0040] In some embodiments, the softened connection portion is provided with a mating end surface.

[0041] In some embodiments, the assembly end surface is sealingly connected to the mating end surface to close the slot.

[0042] In some embodiments, the main valve core includes a main static valve plate and an active valve plate movable relative to the main static valve plate.

[0043] In some embodiments, the main static valve plate is fixed to the valve housing.

[0044] In some embodiments, the active valve plate is provided with a main valve first groove.

[0045] In some embodiments, the main static valve plate is provided with a main valve water inlet hole and a main and auxiliary connecting holes.

[0046] In some embodiments, the main valve water inlet is connected to the raw water inlet.

[0047] In some embodiments, the primary and secondary connecting holes are connected to the connecting channel.

[0048] In some embodiments, the main valve water inlet hole and the main and auxiliary connection holes can be connected through the first groove of the main valve.

[0049] The water softener provided according to an embodiment of the present application includes a softening device and a softening valve as described above, wherein the softening device connects the raw water outlet and the soft water inlet.

[0050] The water softener according to the embodiment of the present application has a simple structure and is convenient for users to obtain water.

[0051] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0053] FIG1 is a schematic diagram of the three-dimensional structure of a soft water valve provided in an embodiment of the present application;

[0054] FIG2 is a bottom view of a soft water valve according to an embodiment of the present invention;

[0055] FIG3 is a schematic diagram of a three-dimensional structure of a water softener provided in an embodiment of the present application from a bottom perspective;

[0056] FIG4 is a second bottom view structural diagram of a soft water valve provided in an embodiment of the present application;

[0057] FIG5 is a second schematic diagram of the three-dimensional structure of the soft water valve provided in an embodiment of the present application from a bottom perspective;

[0058] FIG6 is a schematic diagram of the three-dimensional structure of the soft water valve provided by the first embodiment of the present application from a side and rear perspective, wherein the valve housing in the figure is not installed with the main valve assembly and the auxiliary valve assembly;

[0059] FIG7 is a schematic structural diagram of a main valve assembly provided in an embodiment of the present application;

[0060] FIG8 is a schematic structural diagram of a secondary valve assembly provided in an embodiment of the present application;

[0061] FIG9 is a schematic diagram of the three-dimensional structure of the main valve core provided in an embodiment of the present application;

[0062] FIG10 is a schematic diagram of the three-dimensional structure of the auxiliary valve core provided in an embodiment of the present application;

[0063] FIG11 is a schematic structural diagram of a main static valve disc provided in an embodiment of the present application, in which the main static valve disc is shown facing the active valve disc;

[0064] FIG12 is a schematic diagram of the structure of the active valve disc provided in an embodiment of the present application, in which the active valve disc is shown facing the side of the main static valve disc;

[0065] FIG13 is a schematic structural diagram of the auxiliary static valve disc provided in an embodiment of the present application, in which the auxiliary static valve disc is shown facing the auxiliary dynamic valve disc;

[0066] FIG14 is a schematic structural diagram of the auxiliary movable valve disc provided in an embodiment of the present application, in which the auxiliary movable valve disc is shown facing the side of the auxiliary static valve disc;

[0067] FIG15 is a schematic diagram of the water path of a water softener provided in an embodiment of the present application;

[0068] FIG16 is a schematic diagram of the water path of a water softener in water production mode provided by an embodiment of the present application;

[0069] FIG17 is a schematic structural diagram of the main valve core provided in an embodiment of the present application in a water production mode, wherein the main valve core is in a first main valve position;

[0070] FIG18 is a schematic structural diagram of the auxiliary valve core provided in an embodiment of the present application in a water production mode, wherein the auxiliary valve core is in a first auxiliary valve position;

[0071] FIG19 is a schematic diagram of the water path of a water softener in a water injection mode according to an embodiment of the present application;

[0072] FIG20 is a schematic structural diagram of the main valve core provided in an embodiment of the present application in a water injection mode, wherein the main valve core is in a first main valve position;

[0073] FIG21 is a schematic structural diagram of the auxiliary valve core provided in an embodiment of the present application in a water injection mode, with the auxiliary valve core in a second auxiliary valve position;

[0074] FIG22 is a schematic diagram of the water path of a water softener in a salt absorption mode according to an embodiment of the present application;

[0075] FIG23 is a schematic structural diagram of the main valve core provided in an embodiment of the present application in a salt absorption mode, wherein the main valve core is in a third main valve position;

[0076] FIG24 is a schematic structural diagram of the auxiliary valve core provided in an embodiment of the present application in a salt absorption mode, wherein the auxiliary valve core is in a third auxiliary valve position;

[0077] FIG25 is a schematic diagram of the water path of a water softener in backwash mode provided by an embodiment of the present application;

[0078] FIG26 is a schematic structural diagram of the main valve core provided in an embodiment of the present application in a backwash mode, with the main valve core in a third main valve position;

[0079] FIG27 is a schematic structural diagram of the auxiliary valve core provided in an embodiment of the present application in a backwash mode, with the auxiliary valve core in a first auxiliary valve position;

[0080] FIG28 is a schematic diagram of the water path of a water softener in a forward wash mode according to an embodiment of the present application;

[0081] FIG29 is a schematic structural diagram of the main valve core provided in an embodiment of the present application in a forward flushing mode, with the main valve core in a first main valve position;

[0082] FIG30 is a schematic structural diagram of the auxiliary valve core provided in an embodiment of the present application in a forward wash mode, with the auxiliary valve core in a fourth auxiliary valve position;

[0083] FIG31 is a schematic diagram of the water path of a water softener provided in an embodiment of the present application in which the water hardness can be adjusted;

[0084] FIG32 is a schematic structural diagram of a soft water valve provided in an embodiment of the present application;

[0085] FIG33 is a schematic structural diagram of a soft water valve provided in an embodiment of the present application. It differs from FIG32 in that the position of the bypass movable valve plate is different, and the opening degree of the connection between the raw water channel and the soft water channel changes;

[0086] FIG34 is a schematic structural diagram of a bypass valve provided in an embodiment of the present application;

[0087] FIG35 is a schematic diagram of a structure for taking tap water through a water softener provided in an embodiment of the present application;

[0088] FIG36 is a schematic diagram of the three-dimensional structure of a water softener provided in an embodiment of the present application, in which the ejector is in a disassembled state, and the main drive unit and the auxiliary drive unit are not shown;

[0089] FIG37 is a schematic diagram of the three-dimensional structure of the ejector provided in an embodiment of the present application;

[0090] FIG38 is a partial cross-sectional view of the structure of the ejector provided in an embodiment of the present application installed in a valve housing. The dashed lines with arrows in the figure indicate the flow paths of the raw water and the salt solution in the salt absorption mode.

[0091] FIG39 is a partial cross-sectional view of the structure of an ejector provided in an embodiment of the present application installed in a valve housing. The dashed line with an arrow in the figure indicates the flow path of raw water in the water injection mode.

[0092] FIG40 is a schematic structural diagram of a soft water valve provided in an embodiment of the present application;

[0093] FIG41 is a schematic diagram of a top view of the valve housing provided in an embodiment of the present application;

[0094] FIG42 is a schematic structural diagram of a valve housing provided in an embodiment of the present application;

[0095] FIG43 is a schematic structural diagram of the main valve core provided in an embodiment of the present application in a second main valve position;

[0096] FIG44 is a schematic structural diagram of a cover body of a soft water valve provided in an embodiment of the present application;

[0097] FIG45 is a schematic structural diagram of a water softener provided in an embodiment of the present application, wherein dotted arrows indicate water paths within the softening device;

[0098] In the above waterway diagram, the dotted arrows indicate the flow path of water;

[0099] Figures 17, 20, 23, 26 and 29 illustrate the main static valve disc above the active valve disc, and the perspective from the main static valve disc to the active valve disc; Figures 18, 21, 24, 27 and 30 illustrate the auxiliary static valve disc above the auxiliary moving valve disc, and the perspective from the auxiliary static valve disc to the auxiliary moving valve disc.

[0100] Reference numerals:

[0101] 110, valve housing; 111, main chamber; 112, auxiliary chamber; 113, raw water inlet; 114, soft water outlet; 115, sewage outlet; 116, main chamber connecting hole; 118, raw water outlet; 119, soft water inlet; 1110, salt tank connection port; 1111, auxiliary chamber connecting hole; 1112, water outlet channel; 1113, connecting channel; 1114, sewage channel; 1115, filter channel; 1116, sealing Cover; 1117, sewage trough; 1119, salt water injection port; 1120, brine port; 1121, softening connection port; 1124, second sewage opening; 1125, first sewage opening; 1130, cover body; 1132, bypass trough; 1133, cover member; 1134, first communication port; 1135, second communication port; 1136, secondary communication port; 1137, primary outlet channel; 1138, softening channel;

[0102] 1140, first shell; 1141, second shell; 1142, third shell; 1143, softened connection;

[0103] 120, main valve assembly; 121, active valve disc; 1211, main valve water inlet; 1212, main valve first groove; 1213, main valve second groove; 122, main static valve disc; 1221, main valve water inlet; 1222, main valve sewage outlet; 1223, main and auxiliary connecting holes; 124, main valve core; 125, main drive unit; 1251, main shaft assembly; 126, main water control channel; 127, first sewage outlet channel; 128, connecting channel;

[0104] 130. Auxiliary valve assembly; 131. Auxiliary moving valve disc; 1311. Auxiliary valve first groove; 1312. Auxiliary valve second groove; 1313. Auxiliary valve third groove; 1314. Auxiliary valve water inlet; 1315. Auxiliary valve fourth groove; 1316. Auxiliary valve fifth groove; 1317. Main body; 1318. Shielding portion; 132. Auxiliary static valve disc; 1321. Auxiliary valve drain hole; 1322. Softening connection hole; 1323. Brine hole; 1324. Brine absorption and water injection hole; 134. Auxiliary valve core; 1341. First salt absorption flow channel; 1342. Second salt absorption flow channel; 135. Auxiliary drive unit; 1351. Auxiliary shaft assembly; 136. Auxiliary water control flow channel; 137. Water injection flow channel; 138. Forward wash flow channel;

[0105] 140, bypass valve; 141, bypass movable valve disc; 1411, first sector; 1412, second sector; 142, bypass stationary valve disc; 1421, first bypass opening; 1422, second bypass opening; 143, bypass motor; 144, bypass sealing ring;

[0106] 150. Flow meter;

[0107] 160, ejector; 161, jet inlet; 162, jet outlet; 163, suction port; 164, first flow channel; 165, second flow channel; 166, jet flow limiter; 190, softening device;

[0108] 200. Salt box. DETAILED DESCRIPTION

[0109] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0110] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise specified, "multiple", "multiple roots", and "multiple groups" mean two or more.

[0111] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0112] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0113] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0114] In an embodiment of the present application, with reference to Figures 1 to 45 , a soft water valve applied to a water softener is provided. The soft water valve is used to adjust the flow path changes of the water softener so as to realize switching of multiple functional modes through the soft water valve.

[0115] Referring to Figures 1 to 6 and Figure 45, an embodiment of the present application provides a soft water valve, including a valve housing 110, a main valve assembly 120 and a sub-valve assembly 130. The valve housing 110 includes a main cavity 111 and a sub-cavity 112. By adjusting the on-off of the flow channel corresponding to the main valve assembly 120, adjusting the on-off of the flow channel corresponding to the sub-valve assembly 130, and coordinating the main cavity 111 and the sub-cavity 112, switching of multiple functional modes can be achieved.

[0116] Among them, the switchable functional modes of the soft water valve include: water production mode, water injection mode, salt absorption mode and cleaning mode. In the water production mode, raw water can be fed into the softening device 190 through the soft water valve, and the softened water obtained by the softening device 190 is then sent back to the soft water valve. The user can get soft water from the soft water outlet 114 of the soft water valve; in the water injection mode, water can be injected into the salt tank 200 through the salt tank connection port 1110 of the soft water valve. The water injected into the salt tank 200 can be raw water or soft water, so that the water dissolves the salt in the salt tank 200; after the water is injected into the salt tank 200, the salt in the salt tank 200 can be dissolved for a period of time. This process can be called salt melting mode ; In the salt absorption mode, the salt water in the salt tank 200 is sent to the softening device 190 through the soft water valve, and the water that has cleaned the softening device 190 is discharged through the soft water valve; in the cleaning mode, the raw water is passed into the softening device 190 through the soft water valve, and the water that has cleaned the softening device 190 is discharged through the soft water valve; the cleaning mode includes at least one of the backwash mode and the forward wash mode. In the backwash mode, the raw water is passed into the softening device 190 through the soft water inlet 119 and then discharged to the soft water valve through the raw water outlet 118; in the forward wash mode, the raw water is passed into the softening device 190 through the raw water outlet 118 and then discharged to the soft water valve through the soft water inlet 119.

[0117] It should be noted that the raw water can be water introduced into the raw water inlet 113 of the softening valve, such as tap water, and the hardness of the raw water is greater than that of the soft water. Softening device 190 includes a resin tank, and the resin in the resin tank softens the raw water to produce soft water. Of course, softening device 190 can also be other structures that can be used to soften raw water.

[0118] 2 to 6 , 9 to 14 , and 21 , the valve housing 110 includes a raw water inlet 113, a soft water outlet 114, a main chamber 111, a secondary chamber 112, a raw water outlet 118, and a soft water inlet 119. The raw water inlet 113 is used to connect to a raw water pipeline to allow raw water to enter the valve housing 110 of the soft water valve. At least one of the main chamber 111 and the secondary chamber 112 can communicate with the raw water inlet 113, meaning that raw water can flow into at least one of the main chamber 111 and the secondary chamber 112, and then the flow direction of the raw water can be regulated through the corresponding valve assembly. The raw water outlet 118 and the raw water inlet 113 can be opened and closed by the main valve assembly 120. When the main valve assembly 120 connects the raw water inlet 113 and the raw water outlet 118, the raw water can be transported to the softening device 190 through the raw water outlet 118. Since the raw water outlet 118 and the soft water inlet 119 can be connected through the softening device 190, after the raw water is softened in the softening device 190, the soft water in the softening device 190 can be transported to the soft water valve through the soft water inlet 119. The soft water inlet 119 is connected to the soft water outlet 114 to deliver the soft water through the soft water valve. Of course, the soft water inlet 119 can also be opened and closed by the flow channel inside the auxiliary valve assembly 130 to adjust the flow direction of the soft water.

[0119] The main chamber 111 and the raw water outlet 118 are connected and can be normally open. When water is flowing into the main chamber 111, water can flow through the raw water outlet 118 to the softening device. When water is not flowing into the main chamber 111, the raw water outlet 118 stops supplying water to the softening device. This eliminates the need to regulate the opening and closing of the main chamber 111 and the raw water outlet 118, simplifying the structure of the main valve core 124. Raw water enters the valve housing 110 through the raw water inlet 113. The main valve assembly 120 then controls the flow of the raw water to either the main chamber 111 or the secondary chamber 112. When raw water flows into the main chamber 111, it can flow into the softening device 190 through the raw water outlet 118. When raw water flows into the secondary chamber 112, at least a portion of the raw water can flow into the soft water outlet 114 and exit the softening valve from there. Of course, the main chamber 111 and the raw water outlet 118 can also be regulated by the main valve core 124 (not shown).

[0120] Illustratively, the main chamber 111 is provided with a main chamber communicating hole 116, which is connected to the raw water outlet 118, so that the main chamber 111 and the raw water outlet 118 are connected, so that the water in the main chamber 111 can flow to the raw water outlet 118 through the main chamber communicating hole 116, or the water at the raw water outlet 118 can flow into the main chamber 111 through the main chamber communicating hole 116.

[0121] The secondary chamber 112 is connected to the soft water outlet 114. In some embodiments, the secondary chamber 112 and the soft water outlet 114 are always connected. When the secondary chamber 112 is filled with water, the user can access the water in the secondary chamber 112 through the soft water outlet 114. The water can be raw water or soft water. When the secondary chamber 112 is not filled with water, the user cannot access the water in the secondary chamber 112. The water in the secondary chamber 112 can also be transported to the salt tank 200 or the softening device 190 through the secondary valve core 134. The technical solution of the present application allows the user to continuously draw water from the secondary chamber 112 by keeping the secondary chamber 112 filled with water, thereby achieving the purpose of 24-hour water supply.

[0122] Exemplarily, the secondary chamber 112 is provided with a secondary chamber communication hole 1111, which is connected to the soft water outlet 114, so that the water in the secondary chamber 112 can flow along the secondary chamber communication hole 1111 and the soft water outlet 114. That is, the water obtained by the user at the soft water outlet 114 and the water in the secondary chamber 112 are the same water. Through the coordinated control of the main valve assembly 120 and the secondary valve assembly 130, the water in the secondary chamber 112 can be used in the water production mode, water injection mode, salt absorption mode and cleaning mode of the soft water valve. For example, in the water production mode and water injection mode, the water in the secondary chamber 112 is soft water, and in the salt absorption mode, the water in the secondary chamber 112 is raw water, so that the user has water available regardless of the mode.

[0123] Illustratively, the valve housing 110 is configured with a water outlet channel 1112 , which connects the sub-cavity communication hole 1111 and the soft water outlet 114 , so that water in the sub-cavity 112 can flow along the sub-cavity communication hole 1111 , the water outlet channel 1112 and the soft water outlet 114 .

[0124] It should be noted that the water outlet channel 1112 can be directly connected to the soft water outlet 114, and the water outlet channel 1112 can also be connected to the soft water outlet 114 through a corresponding channel.

[0125] The valve housing 110 is configured with a soft water channel, which connects the sub-cavity 112 and the soft water outlet 114 , so that water in the sub-cavity 112 can flow along the soft water channel to the soft water outlet 114 .

[0126] In some embodiments, the soft water channel may be in communication with the sub-cavity 112 through the water outlet channel 1112 , so that water in the sub-cavity 112 may flow along the water outlet channel 1112 and the soft water channel to the soft water outlet 114 .

[0127] Illustratively, the valve housing 110 is connected to a flow meter 150 , and a detection portion of the flow meter 150 is located in the soft water channel. The flow meter 150 can detect the flow rate of water flowing out of the soft water channel.

[0128] In which, the valve housing 110 is constructed with a raw water channel, a raw water inlet 113 is formed at the first end of the raw water channel, and the second end of the raw water channel can be connected to at least one of the main chamber 111 and the auxiliary chamber 112, so that raw water can flow into at least one of the main chamber 111 and the auxiliary chamber 112.

[0129] In some embodiments, the main valve assembly 120 is located at the second end of the raw water channel so that the raw water is first transported to the main valve assembly 120. The main valve assembly 120 has at least two flow paths, one of which is used to connect the second end of the raw water channel and the main chamber 111, and the other is used to connect the second end of the raw water channel and the secondary chamber 112. By controlling the on-off of the two flow paths by the main valve assembly 120, the on-off control of the raw water inlet 113 and the main chamber 111 can be achieved, and the on-off control between the raw water inlet 113 and the secondary chamber 112 can also be achieved.

[0130] The valve housing 110 is constructed with a communication channel 1113. The outlet of the communication channel 1113 communicates with the secondary chamber 112, and the inlet of the communication channel 1113 can be switched on and off with the raw water inlet 113. That is, the inlet of the communication channel 1113 can be connected to or disconnected from the raw water inlet 113. When the inlet of the communication channel 1113 is connected to the raw water inlet 113, raw water enters the valve housing 110 through the raw water inlet 113 and then enters the secondary chamber 112 through the communication channel 1113. When the inlet of the communication channel 1113 is disconnected from the raw water inlet 113, the raw water cannot flow directly into the secondary chamber 112.

[0131] Exemplarily, the inlet of the connecting channel 1113 is connected and disconnected with the raw water inlet 113 through the main valve assembly 120. Since the main valve assembly 120 is located between the raw water inlet 113 and the connecting channel 1113, the main valve assembly 120 can realize the connection and disconnection control of the raw water inlet 113 and the inlet of the connecting channel 1113.

[0132] Of course, the outlet of the communication channel 1113 can also be opened and closed with the secondary chamber 112 (not shown in the figure), and the secondary valve assembly 130 can open and close the secondary chamber 112 and the communication channel 1113. In this case, the communication channel 1113 and the raw water inlet 113 can be normally open or opened and closed by the main valve assembly 120. Among them, the communication channel 1113 can also be opened and closed with the main chamber 111 through the main valve assembly 120. When the main chamber 111 is connected to the raw water inlet 113, the main valve assembly 120 controls the opening and closing of the main chamber 111 and the secondary chamber 112. That is, the main valve assembly 120 can control the main chamber 111 and the secondary chamber 112 to be connected to the raw water inlet 113, or the main valve assembly 120 can make the raw water inlet 113 connect to the main chamber 111 and the secondary chamber 112 at the same time.

[0133] As shown in Figures 2 and 3, the entrance of the connecting channel 1113 is located at the bottom of the main chamber 111. The entrance of the connecting channel 1113 corresponds to the main and auxiliary connecting holes 1223 of the main static valve plate 122. The water inlet of the connecting channel 1113 is mainly controlled by the main valve core 124 located in the main chamber 111. The active valve plate 121 can actively control whether the raw water can flow into the auxiliary chamber 112. The connecting channel 1113 of the two chambers is designed to be controllable, mainly to ensure that the user can use water during the regeneration of the softening material of the water softener without affecting the regeneration of the softening material. The outlet of the connecting channel 1113 is connected to the auxiliary chamber 112, and an auxiliary connecting port 1136 is opened on the side wall of the auxiliary chamber 112. The outlet of the connecting channel 1113 is the auxiliary connecting port 1136, thus forming a channel connecting the two chambers.

[0134] The outlet end of the communicating channel 1113 is communicated with the secondary communicating port of the secondary chamber 112, and the inlet end of the communicating channel 1113 is communicated with the main communicating port of the main chamber 111. The main communicating port is communicated with the raw water inlet 113 through the main valve core 124, so that the soft water valve can switch between a state in which the raw water inlet 113 is connected to the main communicating port and a state in which the raw water inlet 113 is disconnected from the main communicating port, that is, the main valve core 124 can control the connection and disconnection between the raw water inlet 113 and the communicating channel 1113, and the communicating channel 1113 can be communicated with the secondary chamber 112 through the secondary communicating port, so that the main valve core 124 can control the connection and disconnection between the raw water inlet 113 and the secondary chamber 112.

[0135] Among them, the secondary connecting port can be connected to the raw water inlet 113 through the secondary valve core 134 in a disconnectable manner, so that the soft water valve can switch between the state in which the raw water inlet 113 is connected to the secondary connecting port and the state in which the raw water inlet 113 is disconnected from the secondary connecting port, that is, the connection and disconnection between the raw water inlet 113 and the secondary cavity 112 can be controlled.

[0136] The outlet of communication channel 1113 is formed in the wall of secondary chamber 112. This outlet and secondary chamber communication hole 1111 are located on the same side of secondary valve core 134. When communication channel 1113 is connected to raw water inlet 113, raw water can flow directly through raw water inlet 113 and communication channel 1113 to secondary chamber communication hole 1111, and then through secondary chamber communication hole 1111 to soft water outlet 114 without passing through secondary valve core 134, simplifying the structure of secondary valve core 134.

[0137] The outlet of the connecting channel 1113 and the soft water inlet 119 are respectively located on both sides of the auxiliary valve core 134, so that the auxiliary valve core 134 can control the opening and closing between the outlet of the connecting channel 1113 and the soft water inlet 119. The auxiliary valve core 134 can play the role of separating the outlet of the connecting channel 1113 and the soft water inlet 119.

[0138] It should be noted that the "two sides" in "two sides of the auxiliary valve core 134" refers to two separated positions of the auxiliary valve core 134, that is, "two sides" refers to but is not limited to the relationship between front and back, left and right, and up and down.

[0139] The outlet of the communication channel 1113 is higher than the auxiliary cavity communication hole 1111, so that when the raw water flows to the auxiliary cavity communication hole 1111 through the communication channel 1113, the raw water can all flow to the soft water outlet 114 through the auxiliary cavity communication hole 1111, thereby avoiding the problem of water accumulation in the auxiliary cavity 112 caused by the outlet of the communication channel 1113 being lower than the auxiliary cavity communication hole 1111.

[0140] With the auxiliary chamber 112 of the soft water valve in communication with the raw water inlet 113, the auxiliary valve water inlet 1314 is in corresponding communication with the auxiliary communication port. With the auxiliary valve water inlet 1314 in communication with the auxiliary chamber 112, raw water can flow directly into the auxiliary chamber 112 through the raw water inlet 113 and the auxiliary communication port. The auxiliary valve disc does not block the flow of raw water into the auxiliary chamber 112, allowing the raw water to flow smoothly into the auxiliary chamber 112.

[0141] Specifically, the main driving part 125 is used to drive the main valve core 124 so that the main valve core 124 switches between the third main valve position connecting the inlet of the communication channel 1113 and the raw water inlet 113 and the first main valve position connecting the main cavity 111 and the raw water inlet 113.

[0142] In some embodiments, the main valve core 124 is driven by the main driving unit 125 to switch between a first main valve position and a third main valve position. When the main valve core 124 is in the first main valve position, the main valve core 124 connects the main chamber 111 with the raw water inlet 113, while simultaneously blocking the raw water inlet 113 and the inlet of the communication channel 1113, allowing raw water to flow into the main chamber 111. At this time, the soft water valve is in a water production mode, a water injection mode, or a forward wash mode. When the main valve core 124 is in the third main valve position, the main valve core 124 connects the inlet of the communication channel 1113 and the raw water inlet 113, allowing raw water to flow into the secondary chamber 112 through the raw water inlet 113 and the communication channel 1113. At this time, the main valve core 124 blocks the raw water inlet 113 and the main chamber 111. At this time, the soft water valve is in a salt absorption mode or a backwash mode.

[0143] That is to say, when the cleaning mode includes the forward washing mode and the backwash mode, in the water production mode, the water injection mode and the forward washing mode, the main valve core 124 is in the first main valve position, the connecting channel 128 is disconnected, and the raw water inlet 113 is connected to the main chamber 111. At this time, the main valve assembly 120 is mainly used to transport raw water to the main chamber 111, so that the raw water enters the softening device 190. At this time, the auxiliary valve assembly 130 switches the flow path to switch the soft water valve between the water production mode, the water injection mode and the forward washing mode; in the salt absorption mode and the backwash mode, the connecting channel 128 is connected, and the raw water inlet 113 is disconnected from the main chamber 111. At this time, the main valve assembly 120 is mainly used to transport the sewage from the softening device 190 to the raw water outlet 118 of the valve housing 110. At this time, the auxiliary valve assembly 130 switches the flow path to switch the soft water valve between the salt absorption mode and the backwash mode.

[0144] It should be noted that in the brine absorption mode and the backwash mode, the main valve core 124 is driven to the third main valve position, so that the communication channel 1113 connects the raw water inlet 113 and the secondary chamber 112, thereby ensuring that the raw water inlet 113, the communication channel 1113, and the secondary chamber 112 are in communication. Raw water can flow into the secondary chamber 112 through the raw water inlet 113 and the communication channel 1113. Then, the flow path of the secondary valve assembly 130 is switched to realize the switching of the soft water valve between the brine absorption mode and the backwash mode. However, regardless of how the secondary valve assembly 130 is switched, the raw water must first flow into the secondary chamber 112, and the secondary chamber 112 is connected to the soft water outlet 114. Therefore, in the brine absorption mode and the backwash mode, the water at the soft water outlet 114 is raw water, ensuring that the user has water available in the brine absorption mode and the backwash mode.

[0145] In the third main valve position, the main valve core 124 is driven by the main driving unit 125, so that the communication channel 128 of the main valve core 124 is connected. The inlet of the communication channel 1113 and the raw water inlet 113 are connected through the communication channel 128, thereby connecting the raw water inlet 113, the communication channel 128, the communication channel 1113, and the auxiliary chamber 112. The communication channel 128 connects the inlet of the communication channel 1113 and the raw water inlet 113, allowing water to flow along the path of the raw water inlet 113, the communication channel 128, the communication channel 1113, and the auxiliary chamber 112. The inlet of the connecting channel 1113 and the raw water inlet 113 are connected through the connecting channel 128. When the main valve core 124 rotates to the first main valve position, the connecting channel 128 is disconnected, so that the inlet of the connecting channel 1113 and the raw water inlet 113 are disconnected. When the main valve core 124 rotates to the third main valve position, the connecting channel 128 is connected, so that the inlet of the connecting channel 1113 and the raw water inlet 113 are connected.

[0146] Exemplarily, the inlet of the connecting channel 128 is connected to the raw water inlet 113, the outlet of the connecting channel 128 is connected to the inlet of the connecting channel 1113, and the inlet of the connecting channel 128 is toward the side of the raw water inlet 113, that is, at this time the inlet of the connecting channel 128 is not connected to the main chamber 111, and the raw water flows through the raw water inlet 113, the inlet of the connecting channel 128, the connecting channel 128, the connecting channel 1113 and the sub-chamber 112. The raw water does not need to pass through the main chamber 111, and the main chamber 111 and the raw water inlet 113 can be separated, ensuring that when the main valve is in the third position, no raw water enters the main chamber 111.

[0147] Exemplarily, the main valve water inlet hole 1221 of the main static valve plate 122 is connected through the main valve first groove 1212 of the active valve plate 121 and the main and secondary connecting holes 1223 of the main static valve plate 122 to form a connecting flow channel 128. The main and secondary connecting holes 1223 are connected to the inlet of the connecting channel 1113. The inlet of the connecting flow channel 128 is formed at the main valve water inlet hole 1221, and the outlet of the connecting flow channel 128 is formed at the main and secondary connecting holes 1223. The main driving part 125 drives the active valve plate 121 to rotate to the third main valve position, so that the first groove 1212 of the main valve is connected to the main valve water inlet hole 1221 and the main and auxiliary connecting holes 1223, so that the main valve water inlet hole 1221, the main valve first groove 1212 and the main and auxiliary connecting holes 1223 are connected to form a connecting flow channel 128, and the raw water can flow along the path of the raw water inlet 113, the main valve water inlet hole 1221, the main valve first groove 1212, the main and auxiliary connecting holes 1223, the connecting channel 1113 and the auxiliary cavity 112.

[0148] In the salt absorption mode and backwash mode, the main valve water inlet 1221 includes a first area and a second area that are connected. The first area is connected to the main and auxiliary connecting holes 1223 through the main valve first groove 1212, and the second area is closed by the main valve process groove of the active valve plate 121. This allows raw water to flow into the auxiliary chamber through the first area, the main valve first groove 1212, and the main and auxiliary connecting holes 1223.

[0149] Among them, the main valve water inlet hole 1221 can maintain normal communication with the raw water inlet 113, and the main driving part 125 drives the active valve plate 121 to rotate to realize the on-off control of the connecting flow channel 128, which can simplify the structure of the main valve assembly 120.

[0150] Referring to Figures 7, 8, 36 and 40, the main valve assembly 120 includes a main valve core 124 and a main drive part 125 for driving the main valve core 124 to move. The main valve core 124 is located in the main cavity 111. The main cavity 111 and the raw water inlet 113 can be switched on and off through the main valve core 124, so that the main cavity 111 and the raw water inlet 113 can be switched between connected and disconnected.

[0151] In some cases, the connection between the secondary chamber 112 and the raw water inlet 113 can be adjusted via the main valve core 124, allowing the secondary chamber 112 and the raw water inlet 113 to be switched between connected and disconnected. When the secondary chamber 112 is connected to the raw water inlet 113, raw water enters the secondary chamber 112 and is then distributed by the secondary valve assembly 130. When the secondary chamber 112 is disconnected from the raw water inlet 113, the raw water flows through the main valve core 124 into the main chamber 111, then flows through the raw water outlet 118 to the soft water inlet 119, where the secondary valve assembly 130 and the secondary chamber 112 cooperate to control the water flow direction.

[0152] The auxiliary valve assembly 130 includes an auxiliary valve core 134 and an auxiliary driving part 135 for driving the auxiliary valve core 134 to move. The auxiliary valve core 134 is located in the auxiliary chamber 112, and regulates the on-off of the flow channel of the auxiliary valve core 134. It can adjust the on-off of the soft water inlet 119 and the corresponding channel in the auxiliary valve core 134, and can also adjust the on-off of the corresponding channel in the auxiliary chamber 112 and the auxiliary valve core 134. For example, the auxiliary valve core 134 can regulate the on-off of the soft water inlet 119 and the auxiliary chamber 112, the on-off of the auxiliary chamber 112 and the salt tank connecting port 1110 of the valve housing 110, and the on-off of the soft water inlet 119 and the ejector 160 of the soft water valve, etc. The auxiliary chamber 112 and the auxiliary valve assembly 130 are mainly used to realize the regeneration of the softening material in the softening device 190 (the regeneration process includes: water injection mode, salt absorption mode and cleaning mode). The auxiliary chamber 112 and the auxiliary valve assembly 130 are also used to continuously supply water to the soft water outlet 114.

[0153] The main driving part 125 drives the main valve core 124 to move, and the auxiliary driving part 135 drives the auxiliary valve core 134 to move, so that the soft water valve can be switched among the water production mode, the water injection mode, the salt absorption mode and the cleaning mode.

[0154] The main chamber 111 and main valve assembly 120 cooperate primarily to deliver water to the softening device 190. The main function of the main chamber 111 and main valve assembly 120 is primarily for normal water production. Because the normal water production flow rate is relatively large, the large opening structure of the main chamber 111 and main valve core 124 is utilized to produce water. In this case, the auxiliary valve core 134 is used to connect the soft water inlet 119 and the auxiliary chamber 112. The auxiliary chamber 112 and auxiliary valve assembly 130 cooperate primarily to deliver soft water from the softening device 190 to the auxiliary chamber 112 for various modes requiring soft water. The large opening structure of the auxiliary chamber 112 and auxiliary valve core 134 allows users to draw water. Because the water softener has other functions, such as forward wash, backwash, water injection, and slow salt absorption wash, these states require relatively low flow rates. Therefore, the opening area of ​​the holes in the secondary valve core 134 used for water injection and salt absorption can be smaller than the opening area of ​​the holes used for water intake. Therefore, these states are primarily controlled by the secondary chamber 112 and the secondary valve assembly 130, while the main chamber 111 and the main valve assembly 120 perform auxiliary functions. The secondary chamber 112 and the secondary valve assembly 130 are primarily used to regulate other flow paths. The main chamber 111 and the main valve assembly 120 cooperate to increase the flow rate of water delivered to the softening device 190, and the secondary chamber 112 and the main chamber 111 cooperate to perform other functions.

[0155] The main function of the main chamber 111 and the main valve assembly 120 is to produce water during normal operation. Due to the relatively high raw water flow required in the water production mode, the main valve core 124 forms a main water production channel 126, which connects the main chamber 111 with the raw water inlet 113 and the raw water outlet 118, utilizing the large opening structure of the main valve core 124 for water production. In the water production mode, the auxiliary valve core 134 forms an auxiliary water production channel 136, connecting the soft water inlet 119 to the auxiliary chamber 112 through the auxiliary water production channel 136, and the soft water outlet 114 to the auxiliary chamber 112, utilizing the large opening structure of the auxiliary valve core 134 for water extraction.

[0156] Because the water softener has other functions, such as cleaning, filling, and slow salt absorption washing, these states require relatively small raw water flow rates. Therefore, the auxiliary valve core 134 can form multiple flow channels. The flow channels formed by the auxiliary valve core 134 require a smaller flow area. These states are primarily controlled by the auxiliary chamber 112 and the auxiliary valve assembly 130, while the main chamber 111 and the main valve assembly 120 cooperate with these regeneration processes to discharge waste. In some cases, the main chamber 111 and the auxiliary chamber 112 have the same shape, and the main valve assembly 120 and the auxiliary valve assembly 130 have the same outer dimensions. The flow channel formed by the auxiliary chamber 112 and the auxiliary valve assembly 130 has a smaller flow area than the main water flow channel 126 formed by the main chamber 111 and the main valve assembly 120.

[0157] As described above, at least one of the main chamber 111 and the secondary chamber 112 can be connected to the raw water inlet 113. For example, raw water is introduced into at least one of the main chamber 111 and the secondary chamber 112, and the raw water is sent into the softening device 190 through at least one of the main chamber 111 and the secondary chamber 112. At least one of the main chamber 111 and the secondary chamber 112 can be connected to the raw water inlet 113 through a channel, that is, a raw water channel can be set between the main chamber 111 and the raw water inlet 113, and / or a channel can also be set between the secondary chamber 112 and the raw water inlet 113; of course, when both the main chamber 111 and the secondary chamber 112 are connected to the raw water inlet 113, the main chamber 111 and the secondary chamber 112 can be connected to the raw water inlet 113 through independent channels. Alternatively, one of the main chamber 111 and the secondary chamber 112 can be connected to the raw water inlet 113 through a channel, and the main chamber 111 and the secondary chamber 112 are connected through a connecting channel 1113.

[0158] The soft water valve of the embodiment of the present application has a multifunctional two-chamber structure design, which can meet the usage requirements of the water softener in different states. Through the water path switching of the main valve assembly 120 and the auxiliary valve assembly 130, the water path adjustment of the water softener in different states is realized, that is, the water path function requirements of multiple states such as water production mode, cleaning mode (including at least one of forward washing and backwashing), water injection mode, salt absorption slow washing mode (hereinafter referred to as salt absorption mode), etc. The entire valve head structure is compact and simple, with high reliability and good working stability.

[0159] 1 to 6 and 40 to 42 , the valve housing 110 of the water softener valve further defines a drain port 115 and a salt tank connection port 1110. The drain port 115 is used to discharge sewage and can communicate with at least one of the flow channels of the main chamber 111 and the secondary chamber 112 to achieve sewage discharge through different flow paths. The salt tank connection port 1110 is used to connect to the salt tank 200. The salt tank connection port 1110 can inject water into the salt tank 200. The salt tank connection port 1110 can also extract salt water from the salt tank 200 and deliver it to the water softener valve. The salt tank connection port 1110 can have at least one of the functions of injecting water and absorbing salt. One of the main valve assembly 120 and the secondary valve assembly 130 can be used to open and close the salt tank connection port 1110 to achieve open and close communication between the water softener valve and the salt tank 200.

[0160] The valve housing 110 is formed with a drain channel 1114, which can communicate with at least one of the main chamber 111 and the secondary chamber 112, thereby achieving different drainage paths. For example, a first end of the drain channel 1114 communicates with at least one of the main chamber 111 and the secondary chamber 112, and a second end of the drain channel 1114 forms a drain port 115, allowing sewage within the valve housing 110 to be discharged through the drain channel 1114 and the drain port 115.

[0161] In some cases, as shown in Figures 7 and 8, at least one of the main valve assembly 120 and the auxiliary valve assembly 130 is a multi-position multi-way valve, and both the main valve assembly 120 and the auxiliary valve assembly 130 can be switched in multiple positions, and after switching, on-off adjustment of multiple flow paths can be achieved.

[0162] For example, the main valve assembly 120 can switch between at least two main valve positions. In one main valve position, the main valve assembly 120 connects the main chamber 111 with the raw water inlet 113 to pass water to the softening device 190. At this time, the soft water valve corresponds to the water production mode and the water injection mode; in another main valve position, the main valve assembly 120 connects the raw water outlet 118 with the sewage outlet 115 to achieve sewage discharge. At this time, the soft water valve corresponds to the backwash mode and the salt absorption mode; in another main valve position, the main valve assembly 120 can also connect the secondary chamber 112 with the raw water inlet 113; the secondary valve assembly 130 can switch between multiple secondary valve positions (such as three, four, five, etc.), and one secondary valve position corresponds to a mode of the soft water valve. The secondary valve assembly 130 can also switch between three secondary valve positions (not shown in the figure). The secondary valve positions are mainly used for cleaning and coordinating with the water injection and salt absorption modes. The main valve assembly 120 and the auxiliary valve assembly 130 have various structures, and the functions and structures of the main valve assembly 120 and the auxiliary valve assembly 130 can be set according to needs.

[0163] In some cases, as shown in FIG7 , FIG8 , and FIG40 , the main driving portion 125 of the main valve assembly 120 is used to drive the main valve core 124 to rotate, and the main valve core 124 switches between multiple main valve positions by rotating. And / or, the secondary driving portion 135 of the secondary valve assembly 130 is used to drive the secondary valve core 134 to rotate, and the secondary valve core 134 switches between multiple secondary valve positions by rotating.

[0164] At least one of the main valve assembly 120 and the auxiliary valve assembly 130 is a disc valve. Disc valves have a simple structure, and both the valve discs of the main valve core 124 and the auxiliary valve core 134 can be made of ceramic discs. Referring to FIG7 , when the main valve assembly 120 is a disc valve, the main valve core 124 includes a main static valve disc 122 and an active valve disc 121. The main static valve disc 122 is fixed within the main chamber 111. The main drive unit 125 is connected to the active valve disc 121. The main drive unit 125 is used to drive the active valve disc 121 to rotate relative to the main static valve disc 122 to adjust the flow path corresponding to the main valve assembly 120. And / or, referring to Figure 8, when the auxiliary valve assembly 130 is a disc valve, the auxiliary valve core 134 includes an auxiliary static valve plate 132 and an auxiliary dynamic valve plate 131, the auxiliary static valve plate 132 is fixed in the auxiliary cavity 112, and the auxiliary drive part 135 is connected to the auxiliary dynamic valve plate 131. The auxiliary drive part 135 is used to drive the auxiliary dynamic valve plate 131 to rotate relative to the auxiliary static valve plate 132 to adjust the flow channel corresponding to the auxiliary valve assembly 130.

[0165] Among them, when the disc valve is made of ceramic disc, the disc valve has a longer life and higher reliability due to its good wear resistance. Compared with the high structural processing precision of the plunger valve, the disc valve has a lower production cost, which is an important development direction for soft water valves.

[0166] Exemplarily, the active valve disc 121 has at least one notch or groove structure, and the main static valve disc 122 has at least one hole structure, so that the main valve core 124 has at least one flow channel. When the main valve core 124 has at least two flow channels, the main driving unit 125 can drive the active valve disc 121 to rotate, so that the active valve disc 121 and the main static valve disc 122 form different flow channels.

[0167] Illustratively, on the side where the active valve disc 121 contacts the main static valve disc 122, the active valve disc 121 is arranged in a large fan-shaped configuration, with a relatively large main valve water inlet 1211 on the side. The main valve water inlet 1211 is also arranged in a fan-shaped configuration. The main static valve disc 122 is provided with a main valve water inlet hole 1221. Water in the raw water inlet 113 can enter the main chamber 111 through the main valve water inlet hole 1221 of the main static valve disc 122 and the main valve water inlet 1211 of the active valve disc 121. The active valve disc 121 is also designed with two slots. By rotating the active valve disc 121, the slots of the active valve disc 121 can connect or disconnect the main valve drain hole 1222 of the main static valve disc 122 with the main chamber 111, thereby connecting or disconnecting the corresponding flow channels. The flow area of ​​the main valve water inlet hole 1221 and the main valve water inlet 1211 is relatively large, and is mainly used for water production. The flow area of ​​the main valve sewage hole 1222 is relatively small, and can reduce the sewage discharge flow.

[0168] In some cases, when the secondary chamber 112 is connected and disconnected with the raw water inlet 113 through the main valve core 124, the main static valve plate 122 is also provided with a main-secondary connecting hole 1223, and the main-secondary connecting hole 1223 is connected to the secondary chamber 112. The active valve plate 121 is provided with a main valve first groove 1212, and the main valve first groove 1212 can connect the main-secondary connecting hole 1223 with the main valve water inlet hole 1221, thereby forming a connecting flow channel 128.

[0169] With reference to Figures 16 to 30, in some cases, the main valve core 124 has a main water flow channel 126, a connecting flow channel 128, and a first sewage flow channel 127. Among them, the main valve water inlet 1211 of the active valve plate 121 and the main valve water inlet hole 1221 of the main static valve plate 122 are connected to form the main water flow channel 126. At this time, the main valve core 124 is in the first main valve position, and the soft water valve can be in the water making mode, the water filling mode, or the positive washing mode; the main valve water inlet hole 1221 of the main static valve plate 122 is connected to the main valve inlet hole 1221 of the main static valve plate 122. The main valve first groove 1212 of the active valve disc 121 and the main and auxiliary connecting holes 1223 of the main static valve disc 122 are connected to form a communication channel 128. At this time, the main valve core 124 is in the third main valve position, and the soft water valve can be in the salt absorption mode or the backwash mode. The main valve drain hole 1222 of the main static valve disc 122 is connected to the main valve water inlet 1211 of the active valve disc 121 to form a first drain channel 127. At this time, the main valve core 124 is in the third main valve position, and the soft water valve is in the salt absorption mode or the backwash mode.

[0170] Exemplarily, the auxiliary valve core 134 has at least one flow channel, the auxiliary movable valve disc 131 has at least one notch structure or groove structure, and the auxiliary static valve disc 132 has at least one hole structure, so that the auxiliary valve core 134 has at least one flow channel. When the auxiliary valve core 134 has at least two flow channels, the auxiliary movable valve disc 131 can be driven to rotate by the auxiliary driving unit 135, so that the auxiliary movable valve disc 131 and the auxiliary static valve disc 132 form different flow channels.

[0171] In some cases, the auxiliary valve core 134 has an auxiliary water flow channel 136, a water injection flow channel 137, a forward washing flow channel 138, a backwash flow channel, a first salt absorption flow channel 1341 and a second salt absorption flow channel 1342, wherein the softening connection hole 1322 of the auxiliary static valve plate 132 is connected with the auxiliary valve water inlet 1314 of the auxiliary moving valve plate 131 to form the auxiliary water flow channel 136. At this time, the auxiliary valve core 134 is in the first auxiliary valve position, and the soft water valve is in the water making mode; the auxiliary static valve plate 132 is in the first auxiliary valve position, and the soft water valve is in the water making mode. The softening connection hole 1322 of the auxiliary static valve plate 132 is connected to the salt absorption water injection hole 1324 of the auxiliary static valve plate 132 to form a water injection channel 137. For example, the softening connection hole 1322 and the salt absorption water injection hole 1324 can be connected through the auxiliary valve water inlet 1314 of the auxiliary movable valve plate 131. At this time, the auxiliary valve core 134 is in the second auxiliary valve position, and the softening water valve is in the water injection mode; the softening connection hole 1322 of the auxiliary static valve plate 132 is connected to the auxiliary valve drain hole 1321 of the auxiliary static valve plate 132 The forward wash flow channel 138 is formed. For example, the auxiliary valve drain hole 1321 can be connected to the softening connection hole 1322 through the auxiliary valve water inlet 1314 of the auxiliary movable valve disc 131. At this time, the auxiliary valve core 134 is in the fourth auxiliary valve position, and the soft water valve is in the forward wash mode; the softening connection hole 1322 of the auxiliary static valve disc 132 is connected to the auxiliary valve water inlet 1314 of the auxiliary movable valve disc 131 to form a backwash flow channel. At this time, the auxiliary valve core 134 is in the first auxiliary valve position, and the soft water valve is in the reverse Washing mode; the auxiliary valve water inlet 1314 of the auxiliary moving valve disc 131 and the salt absorption water injection hole 1324 of the auxiliary static valve disc 132 are connected to form a first salt absorption flow channel 1341, and the brine hole 1323 of the auxiliary static valve disc 132 is connected through the auxiliary valve first groove 1311 of the auxiliary moving valve disc 131 and the softening connection hole 1322 of the auxiliary static valve disc 132 to form a second salt absorption flow channel 1342. At this time, the auxiliary valve core 134 is in the third auxiliary valve position, and the softening valve is in the salt absorption mode.

[0172] It should be noted that in the water production mode and the backwash mode, the auxiliary valve core 134 is in the first auxiliary valve position, and the communication mode of the auxiliary valve core 134, the auxiliary cavity 112 and the softening device 190 is the same, but the water flow direction is different.

[0173] Of course, in some cases, the main valve assembly 120 and the auxiliary valve assembly 130 can also switch the flow channel through other methods, such as one of the main valve assembly 120 and the auxiliary valve assembly 130 can achieve flow channel switching by moving, and one of the main valve assembly 120 and the auxiliary valve assembly 130 can be a plunger valve.

[0174] In some cases, as shown in reference figure 36, the main drive part 125 includes a main valve motor and a main shaft assembly 1251. The first end of the main shaft assembly 1251 is connected to the main valve motor, and the second end is connected to the active valve plate 121. The main valve motor drives the main valve motor to rotate through the main shaft assembly 1251. The main valve motor can drive the active valve plate 121 to rotate, so that the relative position between the active valve plate 121 and the main static valve plate 122 changes, so that the main valve core 124 forms different flow channels.

[0175] In some cases, as shown in reference figure 36, the auxiliary drive part 135 includes an auxiliary valve motor and an auxiliary shaft assembly 1351. The first end of the auxiliary shaft assembly 1351 is connected to the auxiliary valve motor, and the second end is connected to the auxiliary movable valve plate 131. The auxiliary valve motor drives the auxiliary valve motor to rotate through the auxiliary shaft assembly 1351. The auxiliary valve motor can drive the auxiliary movable valve plate 131 to rotate, so that the relative position between the auxiliary movable valve plate 131 and the auxiliary static valve plate 132 changes, so that the auxiliary valve core 134 forms different flow channels.

[0176] It should be noted that the main driving part 125 and the auxiliary driving part 135 may also share a driving motor, and are not limited to the above-mentioned arrangement of a main valve motor and an auxiliary valve motor.

[0177] 9 to 30 , the soft water valve includes a valve housing 110 , a main valve assembly 120 and a sub-valve assembly 130 , and the main valve assembly 120 cooperates with the sub-valve assembly 130 to achieve switching between multiple modes.

[0178] About water production mode:

[0179] 9 to 14 and 16 to 18 , in some embodiments, in water production mode, the main water production channel 126 of the main valve core 124 is in communication. The main water production channel 126 connects the main chamber 111 with the raw water inlet 113, and the secondary chamber 112 with the soft water inlet 119. The raw water inlet 113, main water production channel 126, main chamber 111, raw water outlet 118, soft water inlet 119, secondary chamber 112, and soft water outlet 114 are all in communication. The main chamber 111 and main valve assembly 120 are primarily used to deliver water to the softening device 190 in water production mode, helping to increase the flow rate of water delivered by the softening valve to the softening device 190, thereby increasing the flow rate of soft water produced by the softening device 190, making it easier for users to access soft water.

[0180] In the water production mode, the main chamber 111 cooperates with the main valve assembly 120 to communicate the raw water inlet 113 with the main chamber 111, and the sub-chamber 112 cooperates with the sub-valve assembly 130 to communicate the sub-chamber 112 with the soft water outlet 114. Based on the communication between the raw water inlet 113, the main water production flow channel 126, the main chamber 111, the raw water outlet 118, the soft water inlet 119, the sub-chamber 112 and the soft water outlet 114, the water flows along the raw water inlet 113, the main water production flow channel 126, the main chamber 111, the raw water outlet 118, the soft water inlet 119, the sub-chamber 112 and the soft water outlet 114. The water flows through the path connected to the water outlet 114, and water is supplied to the softening device 190 through the main valve assembly 120 and the main chamber 111. The soft water obtained after softening by the softening device 190 can be discharged to the secondary chamber 112 through the soft water inlet 119, and the soft water in the secondary chamber 112 is discharged through the soft water outlet 114. During this process, the secondary chamber 112 and the secondary valve assembly 130 are used to connect the soft water inlet 119 and the secondary chamber 112, so that the soft water can be discharged from the soft water inlet 119 to the secondary chamber 112, ensuring that the soft water is discharged from the secondary chamber 112 to the soft water outlet 114, making it convenient for users to take water.

[0181] The main driving unit 125 is used to drive the main valve core 124 to move so that the main valve core 124 switches to communicate with the main water flow channel 126. In some embodiments, the main water flow channel 126 can be connected in some modes and disconnected in other modes.

[0182] As shown in FIG9 , the main valve core 124 includes a main static valve disc 122 and an active valve disc 121. The active valve disc 121 is connected to a main drive unit 125 and fixed to the valve housing 110. The main static valve disc 122 is configured with a main valve water inlet hole 1221, and the active valve disc 121 is configured with a main valve water inlet port 1211. The main valve water inlet hole 1221 communicates with the raw water inlet 113, and the main valve water inlet port 1211 communicates with the main chamber 111. The main valve water inlet hole 1221 and the main valve water inlet port 1211 communicate to form a main water control flow channel 126. The main drive unit 125 drives the active valve disc 121 to adjust its position relative to the main static valve disc 122, thereby achieving on-off regulation between the main chamber 111 and the raw water inlet 113. This simple structure and easy adjustment are achieved.

[0183] In some embodiments, in the water production mode, the main driving unit 125 drives the active valve disc 121 to move, so that the main valve water inlet 1211 and the main valve water inlet hole 1221 are correspondingly connected, that is, the main water control flow channel 126 formed by the main valve water inlet 1211 and the main valve water inlet hole 1221 is connected, and the water at the raw water inlet 113 can flow into the main chamber 111 through the main water control flow channel 126. In the partial non-water production mode, the main driving unit 125 drives the active valve disc 121 to move, so that the main valve water inlet 1211 and the main valve water inlet hole 1221 are not correspondingly connected, that is, the main valve water inlet 1211 and the main valve water inlet hole 1221 are disconnected, the main water control flow channel 126 is disconnected, the raw water inlet 113 cannot be connected to the main chamber 111, and the water at the raw water inlet 113 cannot flow into the main chamber 111.

[0184] In some embodiments, when the soft water valve switches from other modes to water production mode, the main drive unit 125 drives the active valve plate 121 to rotate to the first main valve position. At this time, the main valve water inlet 1211 and the main valve water inlet hole 1221 are connected to form a main water production channel 126, so that the raw water inlet 113 can be connected to the main cavity 111 through the main water production channel 126, and water can be injected into the resin tank through the main water production channel 126.

[0185] When the main driving unit 125 is used to drive the active valve disc 121 to rotate, the active valve disc 121 can rotate to connect or disconnect the main valve water inlet 1211 with the main valve water inlet hole 1221. The main valve water inlet hole 1221 can be a fan-shaped hole. The main valve water inlet 1211 can be formed by the fan-shaped gap of the active valve disc 121 to ensure the flow area of ​​raw water.

[0186] The above content describes the main valve assembly 120 , the main chamber 111 and the valve housing 110 in the water production mode.

[0187] The water production mode is the primary function of the water softener. The other modes (water injection mode, salt absorption mode, and cleaning mode) are designed to ensure the softening effect of the softening device 190 and regenerate the softening material within the softening device 190 to continuously provide soft water. The water injection mode primarily injects water into the salt tank 200, melting the salt therein and regenerating the softening material within the softening device 190.

[0188] Next, the auxiliary valve assembly 130 , the auxiliary chamber 112 and the valve housing 110 in the water production mode will be described.

[0189] In the water production mode, the auxiliary water control flow channel 136 of the auxiliary valve core 134 is connected, connecting the soft water inlet 119 and the auxiliary chamber 112, thereby connecting the raw water inlet 113, the main water control flow channel 126, the main chamber 111, the raw water outlet 118, the soft water inlet 119, the auxiliary water control flow channel 136, the auxiliary chamber 112, and the soft water outlet 114. In some embodiments, in the water production mode, the auxiliary valve core 134 is driven by the auxiliary driving unit 135 to connect the soft water inlet 119 and the auxiliary chamber 112. Specifically, in the water production mode, the auxiliary water control channel 136 of the auxiliary valve core 134 is connected, and the auxiliary water control channel 136 is mainly used to connect the soft water inlet 119 and the auxiliary chamber 112. Based on the state of the main valve assembly 120 in the water production mode, it can be seen that the raw water inlet 113, the main water control channel 126, the main chamber 111, the raw water outlet 118 and the soft water inlet 119 are connected, that is, the raw water can be transported from the raw water outlet 118 to the softening device 190. After the softening device 190 converts the raw water into soft water, the soft water is transported from the soft water inlet 119 to the valve housing 110. At this time, the soft water inlet 119 is connected to the auxiliary chamber 112 through the auxiliary water control flow channel 136, so the soft water inlet 119, the auxiliary water control flow channel 136, the auxiliary chamber 112 and the soft water outlet 114 are connected. The soft water at the soft water inlet 119 can flow along the path of the auxiliary water control flow channel 136, the auxiliary chamber 112 and the soft water outlet 114, so that the user can obtain soft water at the soft water outlet 114, realizing the water making function of the soft water valve.

[0190] In some embodiments, the auxiliary driving part 135 drives the auxiliary valve core 134 to move so that the auxiliary valve core 134 is in the first auxiliary valve position. At this time, the auxiliary valve core 134 can connect the auxiliary cavity 112 and the soft water inlet 119, so that water at the soft water inlet 119 can flow into the auxiliary cavity 112.

[0191] In some embodiments, when the auxiliary valve core 134 is in the first auxiliary valve position, the auxiliary water control flow channel 136 of the auxiliary valve core 134 is connected, and the soft water inlet 119 is connected to the auxiliary chamber 112 through the auxiliary water control flow channel 136 .

[0192] Among them, the auxiliary valve core 134 includes an auxiliary static valve plate 132 and an auxiliary dynamic valve plate 131, the auxiliary dynamic valve plate 131 is connected to the auxiliary drive part 135, the auxiliary static valve plate 132 is fixed to the valve housing 110, the auxiliary static valve plate 132 is constructed with a softening connection hole 1322, and the auxiliary dynamic valve plate 131 is constructed with an auxiliary valve water inlet 1314, the softening connection hole 1322 is connected to the soft water inlet 119, the auxiliary valve water inlet 1314 is connected to the auxiliary cavity 112, and the softening connection hole 1322 is connected to the auxiliary valve water inlet 1314 to form an auxiliary water flow channel 136.

[0193] In some embodiments, in the water production mode, the auxiliary driving unit 135 drives the auxiliary movable valve disc 131 to rotate, causing the relative positions of the auxiliary movable valve disc 131 and the auxiliary static valve disc 132 to change. The auxiliary valve water inlet 1314 and the softening connection hole 1322 are connected to form the auxiliary water control flow channel 136. At this time, the soft water inlet 119 can be connected to the auxiliary chamber 112 through the auxiliary water control flow channel 136, so that water at the soft water inlet 119 can flow into the auxiliary chamber 112. In some non-water production modes, such as the salt absorption mode, the auxiliary driving unit 135 drives the auxiliary movable valve disc 131 to rotate, causing the auxiliary movable valve disc 131 to rotate relative to the auxiliary static valve disc 132. The auxiliary valve water inlet 1314 and the softening connection hole 1322 are no longer connected. That is, the auxiliary water control flow channel 136 is disconnected at this time, and the soft water inlet 119 cannot be connected to the auxiliary chamber 112 through the auxiliary water control flow channel 136, so that the soft water valve can realize other operation modes.

[0194] In some embodiments, in the water production mode, the auxiliary drive unit 135 drives the auxiliary movable valve plate 131 to move to the first auxiliary valve position, so that the auxiliary movable valve plate 131 and the auxiliary static valve plate 132 can form a connected auxiliary water production channel 136, and the soft water inlet 119 and the auxiliary cavity 112 can be connected through the auxiliary water production channel 136.

[0195] In some cases, the auxiliary chamber 112 and the soft water inlet 119 can be normally connected, and do not need to be regulated by the auxiliary valve core 134 (not shown in the figure), which can simplify the structure of the auxiliary valve core 134.

[0196] 9 to 14 , 19 to 21 , and 36 to 39 , in some embodiments, the valve housing 110 is provided with a brine tank connection port 1110 for connecting to the brine tank 200. In the water injection mode, the water injection channel 137 of the auxiliary valve core 134 connects the soft water inlet 119 with the brine tank connection port 1110, thereby establishing communication between the soft water inlet 119, the water injection channel 137, and the brine tank connection port 1110. By adjusting the state of the auxiliary valve assembly 130, the softening device 190 is connected to the brine tank 200, and the softened water in the softening device 190 is transported to the brine tank 200, dissolving the salt in the brine tank 200 so that the salt solution can be passed into the softening device 190.

[0197] Specifically, in the water injection mode, the auxiliary driving unit 135 drives the auxiliary valve core 134 to rotate to the second auxiliary valve position, and the water injection channel 137 of the auxiliary valve core 134 enables the salt absorption water injection hole 1324 to communicate with the salt box connecting port 1110. The salt absorption water injection hole 1324 can be connected to the soft water inlet 119 or the auxiliary cavity 112. The water at the salt absorption water injection hole 1324 can be directly or indirectly transported to the salt box connecting port 1110, and then transported from the salt box connecting port 1110 to the salt box 200, thereby realizing the water injection operation of the salt box 200.

[0198] It should be noted that the way water flows from the soft water inlet 119 to the salt tank connection port 1110 is: when the states of the main chamber 111 and the main valve assembly 120 can be the same as the water production mode, the raw water can flow along the path of the raw water inlet 113, the main water production channel 126, the main chamber 111, the raw water outlet 118 and the soft water inlet 119, so that the raw water is converted into soft water after passing through the softening device 190 and is transported to the soft water outlet 114, and the soft water is then transported from the soft water outlet 114 to the salt tank connection port 1110, thereby realizing the operation of injecting soft water into the salt tank 200.

[0199] The way water flows from the auxiliary chamber 112 to the salt tank connection port 1110 is as follows: when the flow channel of the main valve assembly 120 is switched, the raw water inlet 113 and the auxiliary chamber 112 are connected, that is, the water at the raw water inlet 113 can be directly transported to the auxiliary chamber 112, and the auxiliary chamber 112 and the salt tank connection port 1110 can be connected through the auxiliary valve core 134, thereby realizing the operation of injecting raw water into the salt tank 200.

[0200] It should be noted that the water at the soft water inlet 119 can flow directly to the water injection channel 137, that is, the soft water inlet 119 is directly connected to the water injection channel 137; the water at the soft water inlet 119 can also flow to the water injection channel 137 after passing through the auxiliary cavity 112, that is, the soft water inlet 119, the auxiliary cavity 112 and the water injection channel 137 are connected.

[0201] That is, the soft water inlet 119 is connected to the water injection channel 137 through the auxiliary chamber 112, thereby achieving communication between the soft water inlet 119, the auxiliary chamber 112, and the water injection channel 137. This allows water at the soft water inlet 119 to flow through the auxiliary chamber 112 and then into the water injection channel 137. Alternatively, part of the water at the soft water inlet 119 can flow into the water injection channel 137, while the remaining part flows into the auxiliary chamber 112. In other words, it is ensured that in the water injection mode, water will flow into the auxiliary chamber 112, and the water in the auxiliary chamber 112 can flow out from the soft water outlet 114, ensuring that water is still available to the user in the water injection mode. Moreover, the water flowing into the auxiliary chamber 112 at this time is softened water processed by the softening device 190, meaning that soft water is still available to the user in the water injection mode.

[0202] In some embodiments, in the water injection mode, the way in which the raw water inlet 113 delivers water to the softening device 190 can be the same as the above-mentioned water production mode, that is, the raw water inlet 113 and the raw water outlet 118 can be connected through the main chamber 111 and the main valve assembly 120, so that the raw water flows along the path of the raw water inlet 113, the main water production channel 126, the main chamber 111 and the raw water outlet 118 into the softening device 190, which helps to simplify the structure of the main chamber 111 and the main valve assembly 120.

[0203] When the main valve core 124 is provided with a main water flow channel 126, the main water flow channel 126 connects the main chamber 111 with the raw water inlet 113. For details, please refer to the above description of the water production mode, as shown in Figure 20, and will not be repeated here. In some embodiments, the difference between the water injection mode and the water production mode lies in the different states of the auxiliary valve assembly 130. When the soft water valve switches between the water injection mode and the water production mode, the main valve core 124 is in the first main valve position. The switching between the two modes can be achieved by switching the position of the auxiliary valve core 134. In the water production mode, the position of the auxiliary valve core 134 can be the first auxiliary valve position. In the water injection mode, the position of the auxiliary valve core 134 can be the second auxiliary valve position. The auxiliary drive unit 135 drives the auxiliary valve core 134 to rotate, so that the auxiliary valve core 134 switches between the first auxiliary valve position and the second auxiliary valve position. That is, the auxiliary drive unit 135 is used to drive the auxiliary valve core 134 to rotate until the water injection channel 137 is connected or disconnected, and the auxiliary water production channel 136 is also connected and disconnected accordingly. The auxiliary valve assembly 130 has a simple structure and is easy to operate.

[0204] The auxiliary valve core 134 includes an auxiliary static valve disc 132 and an auxiliary dynamic valve disc 131. The auxiliary dynamic valve disc 131 is connected to the auxiliary drive unit 135. The auxiliary static valve disc 132 is fixed to the valve housing 110. The auxiliary static valve disc 132 is configured with a softening connection hole 1322 and a salt absorption water injection hole 1324. The softening connection hole 1322 communicates with the soft water inlet 119, and the salt absorption water injection hole 1324 communicates with the salt tank connection port 1110. The softening connection hole 1322 and the salt absorption water injection hole 1324 communicate to form a water injection channel 137. The auxiliary static valve disc 132 cooperates with the auxiliary dynamic valve disc 131 to connect the softening device 190 and the salt tank 200, smoothly delivering the soft water in the softening device 190 to the salt tank 200, resulting in a simple structure.

[0205] Specifically, in the water injection mode, the auxiliary driving unit 135 drives the auxiliary valve disc 131 to rotate to the second auxiliary valve position, causing the relative positions of the auxiliary valve disc 131 and the auxiliary static valve disc 132 to change. The softening connection hole 1322 and the salt absorption water injection hole 1324 are connected to form the water injection channel 137. The soft water inlet 119 is connected to the salt tank connection port 1110 through the water injection channel 137, so that water at the soft water inlet 119 can be transported to the salt tank connection port 1110 through the water injection channel 137. In the partial non-water injection mode, the auxiliary driving unit 135 drives the auxiliary valve disc 131 to rotate, so that the salt absorption water injection hole 1324 and the softening connection hole 1322 are no longer connected, so that the soft water inlet 119 cannot be connected to the salt tank connection port 1110 through the water injection channel 137, and the water at the soft water inlet 119 cannot flow to the salt tank connection port 1110, so that the soft water valve can operate in different modes.

[0206] Among them, the auxiliary valve core 134 includes an auxiliary static valve disc 132 and an auxiliary dynamic valve disc 131, the auxiliary dynamic valve disc 131 is connected to the auxiliary drive part 135, the auxiliary static valve disc 132 is fixed to the valve housing 110, the auxiliary static valve disc 132 is constructed with a softening connection hole 1322 and a salt absorption water injection hole 1324, the softening connection hole 1322 is connected to the soft water inlet 119, the salt absorption water injection hole 1324 is connected to the auxiliary cavity 112 and the salt box connection port 1110, the auxiliary dynamic valve disc 131 is constructed with an auxiliary valve water inlet 1314, the auxiliary valve water inlet 1314 is connected to the auxiliary cavity 112, the softening connection hole 1322 and the salt absorption water injection hole 1324 are connected through the auxiliary valve water inlet 1314 to form a water injection channel 137.

[0207] In some embodiments, the auxiliary valve plate 131 is driven to rotate by the auxiliary driving part 135, so that the softening connection hole 1322 and the salt absorption water injection hole 1324 can be connected through the auxiliary valve water inlet 1314 to form a water injection channel 137. At this time, the water injection channel 137 can not only connect the soft water inlet 119 and the salt tank connection port 1110, but also connect the soft water inlet 119 and the auxiliary cavity 112, so that the soft water at the soft water inlet 119 can flow to the salt tank connection port 1110, and can also flow to the soft water outlet 114 after passing through the auxiliary cavity 112.

[0208] Among them, when the soft water valve includes an ejector 160, the salt absorption water injection hole 1324 is connected to the salt tank connection port 1110 through the ejector 160, that is, the water injection channel 137 is connected to the salt tank connection port 1110 through the ejector 160; by switching the state of the auxiliary valve core 134, the soft water valve can also draw salt solution from the salt tank 200 through the ejector 160 and send it to the softening device 190, that is, in the water injection mode and the salt absorption mode, the flow path of water between the softening device 190, the ejector 160 and the salt tank 200 is different; in the water injection mode, Water flows along the softening device 190 through the auxiliary valve assembly 130 to the ejector 160, or flows along the auxiliary chamber 112 to the ejector 160, and then flows through the ejector 160 into the brine tank connection port 1110. In the salt absorption mode, raw water from the auxiliary chamber 112 entering the ejector 160 drives the salt solution in the brine tank 200 into the ejector 160, and then the mixed solution in the ejector 160 is delivered to the softening device 190 through the auxiliary valve assembly 130. It should be noted that the flow channels connected within the auxiliary valve assembly 130 are different in the water injection mode and the salt absorption mode. Of course, in the water injection mode, the water flowing to the brine tank connection port 1110 through the water injection channel 137 of the auxiliary valve assembly 130 can also flow directly into the brine tank connection port 1110 without passing through the ejector 160. In this case, the salt absorption water injection hole 1324 can be directly connected to the brine tank connection port 1110.

[0209] In the above embodiment, in the water injection mode, the path of water flow from the raw water inlet 113 to the auxiliary valve assembly 130 is the same as in the water production mode, that is, the softening device 190 is controlled by the soft water valve to deliver soft water to the brine tank connection port 1110. However, in the water injection mode, raw water may be introduced into the brine tank connection port 1110 by other means. In some cases, in the water injection mode, the main chamber 111 may not be used. By adjusting the state of the auxiliary valve assembly 130, when the raw water inlet 113 is connected to the auxiliary chamber 112, the auxiliary valve assembly 130 is controlled to connect the auxiliary chamber 112 to the brine tank connection port 1110, or the soft water outlet 114 is connected to the brine tank connection port 1110 by other means. Raw water is then passed through the brine tank connection port 1110 into the brine tank 200 (not shown in the figure), dissolving the salt in the brine tank 200 so that the brine can be passed into the softening device 190. For example, the auxiliary chamber 112 of the valve housing 110 is connected to the raw water inlet 113, and the water injection channel 137 is connected to the auxiliary chamber 112 and the salt tank connection port 1110. The raw water in the auxiliary chamber 112 can be sent to the salt tank 200, and can also be dissolved in the salt tank 200 to obtain brine. At this time, the auxiliary valve water inlet 1314 of the auxiliary valve plate 131 is connected to the salt absorption water injection hole 1324, and the raw water in the auxiliary chamber 112 flows along the auxiliary valve water inlet 1314, the salt absorption water injection hole 1324 and the salt tank connection port 1110. At this time, the main valve assembly 120 can disconnect or connect the main chamber 111 and the raw water inlet 113.

[0210] The above describes the water filling mode. After the salt tank 200 is filled with water, the salt in the salt tank 200 dissolves for a predetermined period of time, typically one or two hours. This period allows the salt tank 200 to enter a salt melting state. During this salt melting state, the water production mode can be executed, allowing users to obtain soft water from the soft water outlet 114. After the salt in the salt tank 200 dissolves, the brine is delivered to the softening device 190, which is the salt absorption mode. The salt absorption mode is described below.

[0211] Salt absorption mode:

[0212] 9 to 14 , 22 to 34 , and 36 to 39 , in some embodiments, the valve housing 110 is connected to an ejector 160 , and the valve housing 110 is provided with a salt box connection port 1110 . The salt solution in the salt box connection port 1110 is sucked into the salt box connection port 1110 through the ejector 160 , and the salt solution is sent into the softening device 190 through the cooperation of the ejector 160 and the auxiliary valve assembly 130 , and then the sewage after the softening material in the softening device 190 is regenerated is discharged.

[0213] In the salt absorption mode, as shown in Figures 22 to 24 and Figures 36 to 39, the valve housing 110 is connected to the ejector 160, the ejector 160 is provided with a jet flow channel, and the valve housing 110 is provided with a salt tank connection port 1110. In the salt absorption mode, the jet inlet 161 of the jet flow channel is connected to the raw water inlet 113 through the auxiliary valve core 134, the suction port 163 of the jet flow channel is connected to the salt tank connection port 1110, and the jet outlet 162 of the jet flow channel is connected to the soft water inlet 119 through the auxiliary valve core 134. The soft water inlet 119 is connected to the softening device 190, and the raw water inlet 113, the jet inlet 161, the jet outlet 162 and the soft water inlet 119 are connected, so that the raw water in the raw water inlet 113 can flow into the jet flow channel, and the raw water and the brine at the salt box connection port 1110 are mixed in the jet flow channel to obtain a mixed liquid, and the mixed liquid flows into the softening device 190 along the jet outlet 162 and the soft water inlet 119. Among them, the suction port 163 is located on the flow path between the jet inlet 161 and the jet outlet 162. The raw water flows along the jet inlet 161 to the jet outlet 162. The raw water flows in the jet flow channel, so that a negative pressure is generated at the suction port 163. Under the action of the negative pressure, the salt solution in the salt box 200 is sucked into the jet inlet 161 and the jet flow channel along the salt box connecting port 1110 and the suction port 163, so that the salt solution and the raw water are mixed in the jet flow channel to obtain a mixed solution. The mixed solution flows along the jet outlet 162 to the softening device 190, completing the process of sending the mixed solution into the softening device 190.

[0214] In some embodiments, in the salt absorption mode, the auxiliary valve core 134 is located in the third auxiliary valve position under the drive of the auxiliary drive unit 135, so that the jet inlet 161 of the jet channel is connected to the raw water inlet 113, and the jet outlet 162 of the jet channel is connected to the soft water inlet 119, and the raw water can flow along the path of the raw water inlet 113, the jet inlet 161, the jet outlet 162 and the soft water inlet 119.

[0215] In some cases, the jet inlet 161 communicates with the secondary chamber 112 via the secondary valve core 134, and the secondary chamber 112 communicates with the raw water inlet 113, thereby connecting the jet inlet 161 to the raw water inlet 113. Raw water flows from the raw water inlet 113 to the secondary chamber 112, and then flows from the secondary chamber 112 through the jet inlet 161 into the jet flow channel, thus establishing communication between the jet inlet 161 and the raw water inlet 113. Of course, the jet inlet 161 can also communicate with the raw water inlet 113 through other means, such as directly communicating with the raw water inlet 113, or communicating with the raw water inlet 113 through another valve assembly, without passing through the secondary valve assembly 130.

[0216] In some embodiments, when the jet inlet 161 is connected to the raw water inlet 113 through the secondary chamber 112, the raw water will first flow into the secondary chamber 112. A portion of the raw water in the secondary chamber 112 will flow into the jet flow channel, and the remaining portion of the raw water in the secondary chamber 112 will be discharged from the soft water outlet 114, ensuring that the user still has water available when the soft water valve is in the salt absorption mode. Furthermore, the mixed solution obtained by mixing the salt solution and raw water in the jet flow channel flows through the jet outlet 162 to the soft water inlet 119. The soft water inlet 119 is disconnected from the secondary chamber 112 by the secondary valve assembly 130, that is, the soft water inlet 119 and the secondary chamber 112 are not connected. The salt water at the soft water inlet 119 will not flow into the secondary chamber 112, ensuring that the water in the secondary chamber 112 is raw water, not salt water, and that the user still has raw water available when the soft water valve is in the salt absorption mode.

[0217] In some cases, the auxiliary driving unit 135 drives the auxiliary valve disc 131 to rotate, causing the auxiliary valve water inlet 1314 to be offset from the softening connection hole 1322, thereby blocking the softening connection hole 1322 and the auxiliary chamber 112. In the salt absorption mode, the auxiliary valve water inlet 1314 and the softening connection hole 1322 are offset, that is, the soft water inlet 119 is separated from the auxiliary valve water inlet 1314, and the soft water inlet 119 is separated from the auxiliary chamber 112. This blocks the soft water inlet 119 from the auxiliary chamber 112, preventing the salt water at the soft water inlet 119 from contaminating the water in the auxiliary chamber 112.

[0218] The first drain channel 127 of the main valve core 124 connects the raw water outlet 118 with the drain port 115 of the valve housing 110, allowing raw water from the raw water inlet 113 and salt water from the brine tank connection port 1110 to mix within the jet channel to form a mixed liquid. The mixed liquid then flows along the jet channel, the soft water inlet 119, the raw water outlet 118, the first drain channel 127, and the drain port 115. The mixed liquid flows along the jet channel 162 and the soft water inlet 119 into the softening device 190. After regenerating the softening device 190, the mixed liquid is discharged from the raw water outlet 118. Since the raw water outlet 118 is connected to the drain port 115 of the valve housing 110 via the first drain channel 127, the mixed liquid flows along the raw water outlet 118, the first drain channel 127, and the drain port 115 before exiting the valve housing 110.

[0219] In some cases, the raw water outlet 118 is connected to the first sewage flow channel 127 through the main cavity 111, for example, so that the mixed liquid flows along the raw water outlet 118, the main cavity 111, and the first sewage flow channel 127. Of course, the raw water outlet 118 can also be directly connected to the first sewage flow channel 127, making the structure of the soft water valve simpler.

[0220] In some cases, the mixed solution at jet outlet 162 is not limited to being directed to soft water inlet 119. Instead, it can be directed to raw water outlet 118 through the cooperation of auxiliary valve assembly 130 and main valve assembly 120. This allows the mixed solution to flow along raw water outlet 118 into softening device 190. The mixed solution then cleans the softened material within softening device 190, and the cleaned wastewater is then directed to drain outlet 115 through auxiliary valve assembly 130. There are various pathways for delivering the mixed solution to softening device 190 and discharging wastewater from softening device 190, which can be selected as needed.

[0221] Among them, when the raw water in the sub-cavity 112 is passed into the jet inlet 161 through the sub-valve assembly 130, the mixed solution of the jet outlet 162 is sent to the soft water inlet 119 through the sub-valve assembly 130, and the sewage of the raw water outlet 118 is discharged to the sewage outlet 115 through the main valve assembly 120, the first salt absorption flow channel 1341 and the second salt absorption flow channel 1342 of the sub-valve core 134 are connected, the first salt absorption flow channel 1341 connects the sub-cavity 112 and the jet inlet 161, and the second salt absorption flow channel 1342 connects the jet outlet 162 and the soft water inlet 119, the first sewage discharge channel 127 of the main valve core 124 connects the raw water outlet 118 with the sewage discharge channel 1114 of the valve housing 110 (the end of the sewage discharge channel 1114 forms a sewage discharge port 115), and the raw water in the sub-cavity 112 enters the jet inlet 161 along the first salt absorption channel 1341, and the raw water and the salt solution are mixed in the jet channel to obtain a mixed liquid, which flows out along the jet outlet 162, the soft water inlet 119, the raw water outlet 118, the first sewage discharge channel 127 and the sewage discharge port 115, thereby realizing the salt absorption and slow washing of the softening device 190.

[0222] It should be noted that when the first salt absorption flow channel 1341 is connected to the secondary cavity 112 and the jet inlet 161, the secondary cavity 112 and the raw water inlet 113 are connected, so that the raw water at the raw water inlet 113 can flow into the jet flow channel along the secondary cavity 112 and the jet inlet 161. Of course, the first salt absorption flow channel 1341 can also directly connect the jet inlet 161 and the raw water inlet 113, so that the raw water at the raw water inlet 113 can be transported into the jet flow channel through the jet inlet 161.

[0223] In some cases, the valve housing 110 is provided with a filter channel 1115, and a filter element is provided in the filter channel 1115. The filter channel 1115 connects the jet inlet 161 and the first salt absorption channel 1341, so that the raw water flowing out of the first salt absorption channel 1341 is filtered through the filter channel 1115 and then sent to the softening device 190 along the jet channel and the second salt absorption channel 1342. The filtered raw water is then used for regeneration of the softening material.

[0224] The filter element can be a filter screen, filter element, filter membrane, etc., and the filter element has various structures. The filter element can be fixed in the filter channel 1115. The filter element can be fixed by means of a clamping connection, a fastener connection, a threaded connection, etc. Various fixing methods can be selected according to needs. The filter element is detachably connected to the filter channel 1115 for easy replacement.

[0225] The valve housing 110 is provided with a mounting channel, and the ejector 160 is removably mounted within the mounting channel, facilitating assembly and disassembly of the ejector 160. In some cases, as shown in Figures 35 and 40, the valve housing 110 is integrally formed with the mounting channel, facilitating machining of the valve housing 110 and simplifying the structure of the soft water valve. Alternatively, the valve housing 110 can be directly connected to the ejector 160 (not shown), eliminating the need for the ejector 160 to be mounted within the channel, thereby enhancing the independence of the ejector 160. When the valve housing 110 is provided with a filter channel 1115, the filter channel 1115 can also be formed by a structural member independent of the valve housing 110, such as a pipe detachably connected to the valve housing 110. This pipe can be integrally connected to the independent ejector 160, reducing the number of parts. Based on the foregoing, there are various ways to mount the ejector 160 and the filter element in the valve housing 110, which can be selected according to needs and are not listed here.

[0226] It should be noted that, as shown in Figures 36 to 39 , the ejector 160 can be a Venturi structure. The ejector 160 is disposed on the left side of the valve housing 110. Two channels are formed on the left side of the valve housing 110. The bottom channel houses a filter channel 1115 for filtering impurities and preventing clogging of the ejector 160. An installation channel for mounting the ejector 160 is provided above. A salt tank connection port 1110 is provided on the side of the ejector 160, perpendicular to the direction of water flow in the pipe. The salt tank connection port 1110 can be connected to the salt tank connection port 1110 via a hose to absorb salt during regeneration.

[0227] 36 to 39 , a first flow channel 164 and a second flow channel 165 are provided within the ejector 160. The first end of the first flow channel 164 communicates with the suction port 163, and the second end of the first flow channel 164 forms a jet inlet 161. The first end of the second flow channel 165 communicates with the suction port 163, and the second end of the second flow channel 165 forms a jet outlet 162. A jet flow restrictor 166 is inserted at the end of the first flow channel 164 to regulate the flow rate of the ejector 160.

[0228] Next, the structure of the sub-valve element 134 forming the first salt absorption flow path 1341 and the second salt absorption flow path 1342 will be described.

[0229] As shown in FIG24 , the auxiliary valve core 134 includes an auxiliary static valve disc 132 and an auxiliary dynamic valve disc 131. The auxiliary dynamic valve disc 131 is connected to the auxiliary driving part 135. The auxiliary static valve disc 132 is fixed to the valve housing 110. The auxiliary static valve disc 132 is configured with a salt injection hole 1324, a salt water hole 1323 and a softening connection hole 1322. The auxiliary dynamic valve disc 131 is configured with an auxiliary valve water inlet 1314 and an auxiliary valve first groove 1311. The auxiliary valve water inlet 1314 The brine hole 1323 is connected to the jet outlet 162, and the softening connection hole 1322 is connected to the soft water inlet 119. The brine hole 1323 is connected to the first groove 1311 of the auxiliary valve and the softening connection hole 1322 to form a second salt absorption flow channel 1342.

[0230] In some embodiments, the auxiliary valve water inlet 1314 and the salt injection hole 1324 are connected to form a first salt absorption flow channel 1341, so that the first salt absorption flow channel 1341 can connect the auxiliary chamber 112 and the jet inlet 161, and the water in the auxiliary chamber 112 can flow into the jet flow channel through the first salt absorption flow channel 1341. The salt water hole 1323 and the softening connection hole 1322 are connected through the auxiliary valve first groove 1311 to form a second salt absorption flow channel 1342, so that the second salt absorption flow channel 1342 can connect the jet outlet 162 and the soft water inlet 119. The mixed liquid after the raw water and salt water in the jet flow channel can flow through the second salt absorption flow channel 1342 to the soft water inlet 119, and then the mixed liquid enters the softening device 190 from the soft water inlet 119, thereby delivering salt water into the softening device 190. That is to say, in the salt absorption mode, the raw water flows along the path of the auxiliary chamber 112, the auxiliary valve water inlet 1314, the salt absorption water injection hole 1324, the jet inlet 161, the jet outlet 162 and the soft water inlet 119. After the raw water enters the jet inlet 161, under the action of the negative pressure of the raw water, the salt solution in the salt box 200 enters the suction port 163 along the salt box connection port 1110, so that the salt solution and the raw water are mixed in the jet flow channel to obtain a mixed solution. The mixed solution flows along the path of the jet outlet 162, the salt water hole 1323, the first groove 1311 of the auxiliary valve and the softening connection hole 1322. The mixed solution enters the softening device 190 through the softening connection hole 1322, and the salt solution is transported according to the aforementioned path.

[0231] The raw water of the auxiliary valve water inlet 1314 comes from the auxiliary chamber 112 , and the raw water in the auxiliary chamber 112 comes from the raw water inlet 113 .

[0232] In some cases, referring to Figures 41 and 42, the valve housing 110 includes a connecting channel 1113, which connects the sub-cavity 112 and the raw water inlet 113, so that the raw water can be transported to the sub-cavity 112 along the raw water inlet 113 and the connecting channel 1113, which can simplify the flow path of the raw water transportation and simplify the structure of the soft water valve.

[0233] In some embodiments, the outlet of the communication channel 1113 communicates with the secondary chamber 112, and the inlet of the communication channel 1113 is adjustable between on and off with the raw water inlet 113 via a main valve core 124. The main valve core 124 is driven by a main drive unit 125 to switch between a third main valve position connecting the communication channel 1113 with the raw water inlet 113 and a first main valve position connecting the main chamber 111 with the raw water inlet 113. When the main valve core 124 is in the first main valve position, the raw water inlet 113 is disconnected from the inlet of the communication channel 1113, thereby achieving adjustable on and off between the communication channel 1113 and the raw water inlet 113, and thus also achieving adjustable on and off between the secondary chamber 112 and the raw water inlet 113.

[0234] In salt absorption mode, the communication channel 1113 communicates with the raw water inlet 113 via the main valve core 124. Raw water flows into the secondary chamber 112 through the raw water inlet 113, the main valve core 124, and the communication channel 1113. A portion of the water in the secondary chamber 112 then flows through the secondary valve core 134 to the soft water inlet 119. During this flow, the raw water mixes with the brine in the brine tank 200. The resulting mixed solution flows to the soft water inlet 119 and enters the softening device 190 from there. Another portion of the water in the secondary chamber 112 can flow to the soft water outlet 114, ensuring that the user still has water available in salt absorption mode. In this case, the user can obtain raw water from the soft water outlet 114.

[0235] The above content describes the structure and state of the auxiliary valve assembly 130 in the salt absorption mode, that is, the path for transporting the mixed solution to the softening device 190 is described. The following describes the flow path of the sewage generated after the mixed solution regenerates the softening material in the softening device 190.

[0236] 23 , in the salt absorption mode, the first drain channel 127 of the main valve core 124 is connected, and the first drain channel 127 connects the raw water outlet 118 with the drain channel 1114 of the valve housing 110 , so that the raw water outlet 118 , the first drain channel 127 and the drain channel 1114 are connected.

[0237] In some embodiments, after the mixed liquid of raw water and salt water enters the softening device 190 , the sewage flows along the path of the raw water outlet 118 , the first sewage flow channel 127 and the sewage channel 1114 , so that the sewage can be discharged from the valve housing 110 .

[0238] It should be noted that the raw water outlet 118 can be connected directly to the first sewage discharge channel 127 or through the main chamber 111. When the raw water outlet 118 is connected to the first sewage discharge channel 127 through the main chamber 111, sewage is discharged from the valve housing 110 along the raw water outlet 118, the main chamber 111, the first sewage discharge channel 127, and the sewage discharge channel 1114. At this time, the main water control channel 126 is disconnected, and the main chamber 111 is disconnected from the raw water inlet 113. This prevents the sewage in the main chamber 111 from mixing with the raw water, thus preventing contamination of the raw water at the raw water inlet 113. This ensures that raw water, rather than sewage, flows from the raw water inlet 113 into the secondary chamber 112. The secondary chamber 112 is connected to the soft water outlet 114, meaning that the water used by the user is the water in the secondary chamber 112. This ensures that the user consumes raw water, rather than sewage, when the soft water valve is in the salt absorption mode.

[0239] It should be noted that when the soft water valve is in backwash mode and salt absorption mode, the flow path of the main valve core 124 is the same, so that the soft water valve can discharge sewage from the valve housing 110 in both salt absorption mode and backwash mode, and the two modes share a sewage discharge path, which can simplify the structure of the main valve core 124.

[0240] The main valve core 124 includes a main static valve disc 122 and an active valve disc 121. The active valve disc 121 is connected to the main drive unit 125. The main static valve disc 122 is fixed to the valve housing 110. The main static valve disc 122 is provided with a main valve drain hole 1222, and the active valve disc 121 is provided with a main valve water inlet 1211. The main valve drain hole 1222 is connected to the drain channel 1114, and the main valve water inlet 1211 is connected to the raw water outlet 118. The main valve water inlet 1211 and the main valve drain hole 1222 are connected to form a first drain channel 127. The main drive unit 125 drives the main valve core 124 to the third main valve position, so that the main valve core 124 forms the first drain channel 127. The first drain channel 127 connects the raw water outlet 118 and the drain channel 1114, allowing the sewage in the valve housing 110 to be discharged.

[0241] In some embodiments, the first sewage discharge channel 127 formed by the main valve water inlet 1211 and the main valve sewage discharge hole 1222 can connect the raw water outlet 118 and the sewage discharge channel 1114, so that sewage can flow along the raw water outlet 118, the main valve water inlet 1211, the main valve sewage discharge hole 1222 and the sewage discharge channel 1114 and be discharged from the valve housing 110, thereby realizing the discharge of sewage.

[0242] Of course, the main static valve plate 122 can also have two main valve drain holes 1222 (not shown in the figure), one main valve drain hole 1222 is connected to the raw water outlet 118, and the other main valve drain hole 1222 is connected to the drain port 115 of the valve housing 110. The two drain holes are connected through the groove body of the active valve plate 121, and can also discharge the sewage in the softening device 190.

[0243] The following describes the water injection mode performed by the auxiliary valve core 134 when the valve housing 110 has relevant structures such as a jet flow channel.

[0244] In the water injection mode, as shown in Figure 21, the water injection channel 137 of the auxiliary valve core 134 is connected, the water injection channel 137 is connected to the jet inlet 161 and the soft water inlet 119, and the main chamber 111 is connected to the raw water inlet 113, so that the raw water inlet 113, the main chamber 111, the raw water outlet 118, the soft water inlet 119, the water injection channel 137, the jet channel and the salt box connecting port 1110 are connected, that is, water flows along the path of the raw water inlet 113, the main chamber 111, the raw water outlet 118, the soft water inlet 119, the water injection channel 137, the jet channel and the salt box connecting port 1110, and then enters the salt box 200 through the salt box connecting port 1110.

[0245] It should be noted that the path for delivering soft water into the salt box 200 is provided here, and the water flow path after the soft water flows out of the softening device 190 is provided, but the path for the raw water to flow to the softening device 190 is not introduced. The path for the raw water to flow to the softening device 190 can refer to the above-mentioned water production mode, that is, the main water production channel 126 is connected, and the raw water at the raw water inlet 113 is delivered to the raw water outlet 118. Of course, other paths can also be used.

[0246] In some embodiments, the jet inlet 161 is connected to the soft water inlet 119, so that soft water can flow into the jet channel through the jet inlet 161. At this time, the jet outlet 162 is closed, and the suction port 163 is connected to the salt tank connection port 1110, so that water flows through the jet inlet 161 to the suction port 163, and then flows to the salt tank connection port 1110.

[0247] Among them, the auxiliary valve core 134 includes an auxiliary static valve disc 132 and an auxiliary dynamic valve disc 131, the auxiliary dynamic valve disc 131 is connected to the auxiliary drive part 135, the auxiliary static valve disc 132 is fixed to the valve housing 110, the auxiliary static valve disc 132 is constructed with a softening connection hole 1322 and a salt absorption water injection hole 1324, the auxiliary dynamic valve disc 131 is constructed with an auxiliary valve water inlet 1314, the salt absorption water injection hole 1324 is connected to the jet inlet 161, the softening connection hole 1322 is connected to the soft water inlet 119, the softening connection hole 1322, the auxiliary valve water inlet 1314 and the salt absorption water injection hole 1324 are connected to form a water injection channel 137. In the water injection mode, the jet outlet 162 is closed, so that water flows into the jet channel from the salt absorption water injection hole 1324, and the water in the jet channel flows to the salt box connection port 1110 through the suction port 163. The softening connection hole 1322 , the auxiliary valve water inlet 1314 , the salt absorption water injection hole 1324 and the jet inlet 161 are connected, so that the soft water at the soft water inlet 119 can flow into the jet flow channel through the jet inlet 161 .

[0248] When soft water is transported into the jet flow channel, the jet outlet 162 is closed, the jet inlet 161 is connected to the salt absorption water injection hole 1324, and the suction port 163 is connected to the salt box connection port 1110, so that water flows into the jet inlet 161 through the salt absorption water injection hole 1324, and the water in the jet flow channel flows to the salt box connection port 1110 through the suction port 163.

[0249] Since the jet outlet 162 corresponds to the brine hole 1323 , the auxiliary valve plate 131 can be moved to close the brine hole 1323 to close the jet outlet 162 , so that the water in the jet flow channel enters the brine tank connection port 1110 through the suction port 163 .

[0250] In combination with the above description of the valve types of the main valve assembly 120 and the auxiliary valve assembly 130, when the auxiliary valve assembly 130 is a disc valve, the auxiliary driving part 135 is used to drive the auxiliary dynamic valve disc 131 to rotate relative to the auxiliary static valve disc 132, so that the auxiliary valve core 134 is switched between a position where it is connected to the water injection channel 137 and a position where it is connected to the first salt absorption channel 1341 and the second salt absorption channel 1342.

[0251] The auxiliary driving part 135 is used to drive the auxiliary movable valve disc 131 to rotate relative to the auxiliary static valve disc 132 so that the auxiliary valve core 134 switches between the position where the water injection channel 137 is connected and the position where the jet outlet 162 is connected to the soft water inlet 119.

[0252] In some embodiments, the auxiliary valve disc 131 is driven to rotate by the auxiliary drive unit 135, causing the auxiliary valve core 134 to switch between a second auxiliary valve position corresponding to the water injection mode and a third auxiliary valve position corresponding to the salt absorption mode. When the soft water valve is in the water injection mode, that is, when the auxiliary valve core 134 is in the second auxiliary valve position, the water injection channel 137 of the auxiliary valve core 134 is connected, allowing the soft water inlet 119 to communicate with the jet inlet 161 through the water injection channel 137. Soft water at the soft water inlet 119 can flow through the water injection channel 137 and the jet inlet 161 into the jet channel, and then flow to the salt tank connection port 1110, completing the water injection operation of the salt tank 200. When the soft water valve is in the salt absorption mode, that is, when the auxiliary valve core 134 is in the third auxiliary valve position, the auxiliary valve core 134 connects the jet outlet 162 and the soft water inlet 119, so that the mixed solution of raw water and brine in the jet channel can flow from the jet outlet 162 to the soft water inlet 119, and then flow into the softening device 190, thereby realizing the salt water injection operation of the softening device 190.

[0253] It should be noted that when the auxiliary valve core 134 is in the second auxiliary valve position, the main valve core 124 is in the first main valve position, and when the auxiliary valve core 134 is in the third auxiliary valve position, the main valve core 124 is in the third main valve position. In other words, when the soft water valve switches between the water injection mode and the salt absorption mode, the main drive unit 125 drives the main valve core 124 between the first and third main valve positions to achieve the switching between the water injection mode and the salt absorption mode.

[0254] After the water injection mode and the salt absorption mode, the regeneration of the softening material in the softening device 190 is achieved, and the softening device 190 needs to be cleaned, that is, the soft water valve can control the execution of the cleaning mode, and the cleaning mode includes at least one of the backwash mode and the forward wash mode to ensure that the softening device 190 and the soft water valve are cleaned.

[0255] The backwash mode is described below.

[0256] Referring to Figures 9 to 14 and Figures 25 to 27, in the backwash mode, the backwash channel of the auxiliary valve core 134 is connected, the backwash channel connects the soft water inlet 119 and the raw water inlet 113, and the main drive unit 125 is used to drive the main valve core 124 to move to the first sewage channel 127 for connection, and the first sewage channel 127 connects the raw water outlet 118 and the sewage outlet 115 of the valve housing 110.

[0257] In some embodiments, a backwash flow channel connects the soft water inlet 119 and the raw water inlet 113, allowing raw water to flow along the raw water inlet 113 and the soft water inlet 119, then flow from the soft water inlet 119 into the softening device 190 and out of the softening device 190 through the raw water outlet 118, thereby performing a backwash operation on the softening device 190. Because the first sewage flow channel 127 connects the raw water outlet 118 and the sewage outlet 115 of the valve housing 110, sewage flowing out of the raw water outlet 118 can be discharged from the valve housing 110 along the first sewage flow channel 127 and the sewage outlet 115, thereby draining the sewage from the soft water valve.

[0258] Among them, the auxiliary valve core 134 includes an auxiliary static valve plate 132 and an auxiliary dynamic valve plate 131, the auxiliary dynamic valve plate 131 is connected to the auxiliary drive part 135, the auxiliary static valve plate 132 is fixed to the valve housing 110, the auxiliary static valve plate 132 is constructed with a softening connecting hole 1322, and the auxiliary dynamic valve plate 131 is constructed with an auxiliary valve water inlet 1314, the softening connecting hole 1322 is connected to the soft water inlet 119, the auxiliary valve water inlet 1314 is connected to the raw water inlet 113, and the auxiliary valve water inlet 1314 is connected to the softening connecting hole 1322 to form a backwash flow channel.

[0259] In some embodiments, the auxiliary valve core 134 is driven by the auxiliary drive unit 135 to move to the first auxiliary valve position, so that the auxiliary valve water inlet 1314 and the softening connection hole 1322 are connected to form a backwash channel, and the backwash channel can connect the raw water inlet 113 and the soft water inlet 119, so that the raw water inlet 113, the backwash channel and the soft water inlet 119 are connected, and the raw water can flow along the raw water inlet 113, the backwash channel and the soft water inlet 119 into the softening device 190.

[0260] It should be noted that the auxiliary valve water inlet 1314 can be connected to the auxiliary chamber 112, and the auxiliary chamber 112 is connected to the raw water inlet 113 through the main valve core 124, so that the raw water inlet 113, the auxiliary chamber 112, the auxiliary valve water inlet 1314, the softening connection hole 1322 and the soft water inlet 119 are connected, and the raw water can flow along the path of the raw water inlet 113, the auxiliary chamber 112, the auxiliary valve water inlet 1314, the softening connection hole 1322 and the soft water inlet 119.

[0261] In backwash mode, the backwash channel connects the soft water inlet 119 and the auxiliary chamber 112, which in turn connects the auxiliary chamber 112 to the raw water inlet 113, thereby ensuring that the raw water inlet 113, the auxiliary chamber 112, the backwash channel, and the soft water inlet 119 are connected. Raw water can flow along the path of the raw water inlet 113, the auxiliary chamber 112, the backwash channel, and the soft water inlet 119. When the raw water flows into the auxiliary chamber 112, some of it flows along the path of the backwash channel and the soft water inlet 119, while the rest flows to the soft water outlet 114. This allows users to access raw water at the soft water outlet 114, ensuring that water is still available to the user even when the soft water valve is in backwash mode.

[0262] It should be noted that both the backwash mode and the salt absorption mode discharge water to the outside through the first sewage channel 127, that is, in the backwash mode and the salt absorption mode, the state of the main valve core 124 is the same, which can simplify the structure of the main valve assembly 120 and the flow path arrangement in the soft water valve.

[0263] It should be noted that in the salt absorption mode and the backwash mode, the path of the raw water flowing to the secondary chamber 112 is the same, and the main valve assembly 120 is used to connect the raw water inlet 113 and the secondary chamber 112. The main valve assembly 120 is also used to disconnect the raw water inlet 113 and the main chamber 111, which can simplify the structure of the main valve assembly 120 and the flow path arrangement in the soft water valve.

[0264] In some embodiments, the state of main valve assembly 120 remains the same during both backwash and brine absorption modes, with water flowing outward from main valve assembly 120 to the outside of the soft water valve. However, this drainage path is not limited to the aforementioned first drain channel 127 and may also employ a structure not shown in the figures, such as the aforementioned technical solution of "two drain holes in the main static valve plate 122." For details, please refer to the above description and will not be elaborated here. In other words, during the transition from brine absorption mode to backwash mode, the state of auxiliary valve assembly 130 can be adjusted, while the state of main valve assembly 120 remains unchanged.

[0265] It should be noted that the auxiliary valve assembly 130 can be in the same state in both backwash mode and water production mode. The auxiliary valve core 134 is used to connect the soft water inlet 119 and the auxiliary chamber 112. Switching the position of the main valve core 124 enables the soft water valve to switch between water production mode and backwash mode. In backwash mode, the auxiliary valve assembly 130 connects the soft water inlet 119 and the auxiliary chamber 112 to allow raw water in the auxiliary chamber 112 to flow through the soft water inlet 119 into the softening device 190. In water production mode, the auxiliary valve assembly 130 connects the soft water inlet 119 and the auxiliary chamber 112 to allow softened water at the soft water inlet 119 to flow through the auxiliary chamber 112 to the soft water outlet 114. By sharing the same auxiliary valve core 134 in both backwash and water production modes, the structure of the auxiliary valve assembly 130 can be simplified.

[0266] The above content describes the backwash mode. The following describes the forward wash mode.

[0267] As shown in Figures 9 to 14 and 28 to 30 , the valve housing 110 is provided with a sewage outlet 115. In the forward wash mode, the auxiliary drive unit 135 is used to drive the auxiliary valve core 134 to move to the forward wash flow channel 138, thereby connecting the soft water inlet 119 with the sewage outlet 115. The auxiliary drive unit 135 drives the auxiliary valve core 134 to the fourth auxiliary valve position, connecting the forward wash flow channel 138. At this point, the main water control flow channel 126 of the main valve core 124 connects the main chamber 111 with the raw water inlet 113, allowing raw water to flow along the path of the raw water inlet 113, the main chamber 111, the raw water outlet 118, and the soft water inlet 119. The forward wash flow channel 138 connects the soft water inlet 119 with the sewage outlet 115, allowing water to flow along the path of the soft water inlet 119 and the sewage outlet 115, thereby discharging sewage from the valve housing 110 in the forward wash mode.

[0268] In some embodiments, the main valve core 124 is in the first main valve position, and the position of the auxiliary valve core 134 is switched to enable the water softener to switch between the water production mode, water injection mode, and forward flushing mode. The main valve core 124 is in the first main valve position in each of the water production mode, water injection mode, and forward flushing mode. This means that the main valve core 124 is in the same state, and the water flows along the same path from the raw water inlet 113 to the soft water inlet 119. At this point, the auxiliary drive unit 135 drives the auxiliary valve core 134 to switch positions accordingly, enabling the water softener to switch between the water production mode, water injection mode, and forward flushing mode. This simplifies the control of the water softener and simplifies its structure.

[0269] Among them, the auxiliary valve core 134 includes an auxiliary static valve plate 132 and an auxiliary dynamic valve plate 131, the auxiliary dynamic valve plate 131 is connected to the auxiliary drive part 135, the auxiliary static valve plate 132 is fixed to the valve housing 110, and the auxiliary static valve plate 132 is constructed with a softening connection hole 1322 and an auxiliary valve drain hole 1321, the softening connection hole 1322 is connected to the soft water inlet 119, and the auxiliary valve drain hole 1321 is connected to the drain port 115, and the softening connection hole 1322 and the auxiliary valve drain hole 1321 are connected through the auxiliary valve core 134 to form a positive wash flow channel 138.

[0270] In some embodiments, the forward wash flow channel 138 formed by the connection between the softening connection hole 1322 and the auxiliary valve drain hole 1321 can connect the soft water inlet 119 and the drain outlet 115, thereby connecting the soft water inlet 119, the forward wash flow channel 138, and the drain outlet 115. In the forward wash mode, raw water flows into the softening device 190 through the raw water inlet 113, the main chamber 111, and the raw water outlet 118, performing a forward wash operation on the softening device 190. The wastewater after cleaning the softening device 190 is discharged from the soft water outlet 114. The wastewater then flows along the path of the soft water inlet 119, the forward wash flow channel 138, and the drain outlet 115 and is discharged from the valve housing 110, thus achieving wastewater discharge in the forward wash mode.

[0271] The auxiliary valve disc 131 is constructed with an auxiliary valve water inlet 1314 , which is connected to the auxiliary cavity 112 . The softening connection hole 1322 is connected to the auxiliary valve water inlet 1314 and the auxiliary valve drain hole 1321 to form a positive wash flow channel 138 .

[0272] In some embodiments, the softening connection hole 1322 is connected to the auxiliary valve water inlet 1314 and the auxiliary valve drain hole 1321, and the auxiliary valve water inlet 1314 is connected to the auxiliary chamber 112. Then, part of the water at the soft water inlet 119 can flow along the forward wash channel 138 to the drain outlet 115, and the other part can flow along the softening connection hole 1322 and the auxiliary valve water inlet 1314 to the auxiliary chamber 112. Since the soft water valve has been backwashed before the forward wash mode, the salt content of the sewage generated in the forward wash mode is low and can be used. When the user needs to use water in the forward wash mode, the water in the auxiliary chamber 112 is discharged through the soft water outlet 114 for the user to use.

[0273] It should be noted that the water at the soft water inlet 119 can also flow into the auxiliary chamber 112 along the softening connection hole 1322 and the auxiliary valve water inlet 1314, and then part of the water in the auxiliary chamber 112 flows along the path of the auxiliary valve water inlet 1314 and the auxiliary valve drain hole 1321 to the drain outlet 115, and the other part flows to the soft water outlet 114, so that the user still has water available in the forward washing mode.

[0274] It should be noted that in the forward wash mode, the softening connection hole 1322 is connected to the auxiliary valve water inlet 1314. In this case, the softening connection hole 1322 and the auxiliary valve water inlet 1314 are used to form not only the forward wash flow channel 138, but also the auxiliary water control flow channel 136. That is, in both the forward wash mode and the water control mode, the auxiliary valve core 134 serves to connect the soft water inlet 119 and the auxiliary chamber 112. The auxiliary valve core 134 has a flow channel formed by the softening connection hole 1322 and the auxiliary valve water inlet 1314. However, in the forward wash mode, the auxiliary valve drain hole 1321 of the auxiliary valve core 134 is also connected to the auxiliary valve water inlet 1314.

[0275] Among them, in the positive wash mode, the positive wash channel 138 connects the soft water inlet 119 and the drain channel 1114 of the valve housing 110, the drain port 115 is formed at the end of the drain channel 1114, the raw water outlet 118 is connected to the raw water inlet 113, and the raw water in the soft water valve enters the softening device 190 through the raw water outlet 118. The water in the softening device 190 enters the soft water valve through the soft water inlet 119, and is discharged through the positive wash channel 138 of the auxiliary valve core 134 and the drain channel 1114 of the valve housing 110, thereby realizing the discharge of sewage from the clean softening device 190.

[0276] In some embodiments, when the main valve core 124 is provided with a main water control flow channel 126, in the forward wash mode, the raw water outlet 118 is connected to the raw water inlet 113 through the main water control flow channel 126. In some embodiments, the state of the main valve core 124 in the forward wash mode is the same as the state of the main valve core 124 in the water production mode, that is, the main valve core 124 is in the first main valve position. When the main valve core 124 is in the first main valve position, the water production mode and the forward wash mode can be switched by adjusting the state of the auxiliary valve core 134.

[0277] The auxiliary drive unit 135 is used to drive the auxiliary valve core 134 to rotate until the positive wash channel 138 is connected or disconnected. That is, the auxiliary drive unit 135 drives the auxiliary dynamic valve plate 131 to rotate relative to the auxiliary static valve plate 132, thereby realizing the state switching of the auxiliary valve core 134 and then realizing the functional mode switching of the soft water valve.

[0278] After the softening valve executes the salt absorption mode, the softening device 190 needs to be cleaned. The softening device 190 can be cleaned using at least one of the aforementioned backwash and forward wash modes. If the cleaning mode includes either backwash or forward wash, the softening device 190 can be cleaned using either backwash or forward wash after the salt absorption mode. If the cleaning mode includes both backwash and forward wash, the backwash or forward wash mode can be executed first after the salt absorption mode ends, depending on the needs. In some cases, the backwash mode is executed first, followed by the forward wash mode.

[0279] It should be noted that the holes of the main static valve plate 122 and the auxiliary static valve plate 132 are both provided with openings corresponding to and connected to the holes on the valve housing 110 to ensure that water can flow out through the holes of the static valve plates.

[0280] The above content describes the flow paths corresponding to the various modes of the soft water valve. Next, the control method of the soft water valve will be described.

[0281] Based on the above content, the main valve assembly 120 includes two main valve positions, and the auxiliary valve assembly 130 includes multiple auxiliary valve positions. The positional relationship between the main valve assembly 120 and the auxiliary valve assembly 130 is described.

[0282] In some embodiments, the main drive unit 125 is used to drive the main valve core 124 to switch between the first main valve position and the third main valve position, and the auxiliary drive unit 135 is used to drive the auxiliary valve core 134 to switch between multiple auxiliary valve positions, so that the soft water valve can switch between water production mode, water injection mode, salt absorption mode and cleaning mode.

[0283] Referring to Figures 17, 20, 23, 26 and 29, the main valve core 124 switches between the first main valve position and the third main valve position, that is, in at least two modes, the position of the main valve core 124 is the same, which can simplify the control method of the main valve core 124.

[0284] In some cases, referring to Figures 17, 20 and 29, the main valve core 124 is in the first main valve position, and the main water control channel 126 of the main valve core 124 connects the main chamber 111 with the raw water inlet 113. At the same time, the main chamber 111 is connected to the raw water outlet 118, that is, the raw water from the raw water inlet 113 can be transported to the raw water outlet 118 through the main valve core 124, thereby realizing the process of transporting raw water to the softening device 190. At this time, the switching of the soft water valve between the water control mode and the water injection mode is realized by switching the position of the auxiliary valve core 134.

[0285] When the cleaning mode includes the forward wash mode, the main valve core 124 is in the first main valve position. The position of the auxiliary valve core 134 can be switched to switch the soft water valve to the forward wash mode. The structure of the "main water flow channel 126" can refer to the above-mentioned description of the water supply mode, water injection mode, and forward wash mode. For example, the main valve water inlet 1211 of the active valve plate 121 and the main valve water inlet hole 1221 of the main static valve plate 122 are connected to form the main water flow channel 126.

[0286] In other cases, as shown in Figures 23 and 26 , the main valve core 124 is in the third main valve position. The first wastewater discharge channel 127 of the main valve core 124 is connected, the main water control channel 126 is disconnected, and the first wastewater discharge channel 127 connects the raw water outlet 118 with the wastewater discharge channel 1114 of the valve housing 110, allowing wastewater to be discharged through the raw water outlet 118, the first wastewater discharge channel 127, and the wastewater discharge channel 1114. In the third main valve position, the main valve core 124 is used to discharge wastewater from the softening device 190. In a mode requiring wastewater discharge, the main valve core 124 can be switched to the third main valve position. In this position, the main valve core 124 can deliver raw water to the secondary chamber 112. The secondary valve core 134 then controls the water flow, thereby delivering water to the brine tank 200 and into the softening device 190.

[0287] When the cleaning mode includes a backwash mode, the main valve core 124 is in the third main valve position, and the position of the auxiliary valve core 134 is switched to switch the softening valve between the salt absorption mode and the backwash mode. In some embodiments, in both the salt absorption mode and the backwash mode, the main valve core 124 delivers raw water to the auxiliary chamber 112, and the auxiliary valve core 134 delivers water from the auxiliary chamber 112 to the softening device 190. The main valve core 124 then discharges wastewater from the softening device 190. The auxiliary valve core 134 connects different flow channels in these two modes. Specifically, in the salt absorption mode, the first salt absorption channel 1341 and the second salt absorption channel 1342 of the auxiliary valve core 134 are connected. In the backwash mode, the backwash channel of the auxiliary valve core 134 is connected.

[0288] The above content describes two positions of the main valve assembly 120 . Next, each mode will be described in combination with the positions of the main valve assembly 120 and the auxiliary valve assembly 130 .

[0289] Referring to Figure 18, in the water production mode, the auxiliary valve core 134 is in the first auxiliary valve position, the main valve core 124 is in the first main valve position, the main valve core 124 is used to pass water to the softening device 190, and the auxiliary valve core 134 is used to connect the soft water inlet 119 with the soft water outlet 114 to ensure the output of soft water, and the auxiliary valve core 134 is also used to disconnect the soft water inlet 119 from other flow channels to prevent water in other flow channels from contaminating the soft water.

[0290] As shown in FIG. 21 , in water injection mode, the auxiliary valve core 134 is in the second auxiliary valve position, and the main valve core 124 is in the first main valve position. The main valve core 124 is used to pass water to the softening device 190, and the auxiliary valve core 134 is used to pass the soft water in the softening device 190 into the brine tank connection port 1110. In the second auxiliary valve position, the water injection channel 137 of the auxiliary valve core 134 is connected, connecting the soft water inlet 119 with the brine tank connection port 1110. Furthermore, in the second auxiliary valve position, the auxiliary valve core 134 also connects the soft water inlet 119 and the auxiliary chamber 112, allowing water at the soft water inlet 119 to flow into the auxiliary chamber 112, and then from the auxiliary chamber 112 to the soft water outlet 114, ensuring that water is always available to the user during water injection mode.

[0291] Referring to Figure 24, in the salt absorption mode, the auxiliary valve core 134 is in the third auxiliary valve position, the main valve core 124 is in the third main valve position, the main valve core 124 is used to isolate the raw water inlet 113 and the main chamber 111, and the auxiliary valve core 134 is used to pass the raw water into the ejector 160, and under the flow power of the raw water, the salt solution in the salt box connecting port 1110 is sucked into the ejector 160, and the mixed solution in the ejector 160 is sent to the softening device 190, and the water in the softening device 190 is discharged along the valve housing 110 through the main valve core 124. In the third secondary valve position, the first salt absorption channel 1341 and the second salt absorption channel 1342 of the secondary valve core 134 are connected, the jet inlet 161 of the jet channel is connected to the secondary chamber 112 through the first salt absorption channel 1341, the suction port 163 of the jet channel is connected to the salt tank connection port 1110, and the jet outlet 162 of the jet channel is connected to the soft water inlet 119 through the second salt absorption channel 1342. In the salt absorption mode, the main valve core 124 is also used to connect the raw water inlet 113 and the secondary chamber 112, allowing raw water to flow into the secondary chamber 112. In addition to flowing into and out of the ejector 160, the raw water in the secondary chamber 112 can also flow to the soft water outlet 114, ensuring that the user has raw water available in the salt absorption mode. The secondary valve core 134 is also used to separate the soft water inlet 119 from the secondary chamber 112, preventing the salt water at the soft water inlet 119 from contaminating the raw water in the secondary chamber 112.

[0292] As shown in FIG. 27 , when the cleaning mode includes a backwash mode, in backwash mode, the auxiliary valve core 134 is in the first auxiliary valve position and the main valve core 124 is in the third main valve position. The auxiliary valve core 134 is used to pass raw water into the softening device 190. Water in the softening device 190 is then discharged through the main valve core 124 along the valve housing 110. In the first auxiliary valve position, the backwash flow path of the auxiliary valve core 134 is connected, connecting the soft water inlet 119 with the auxiliary chamber 112. In the third main valve position, the main valve core 124 isolates the raw water inlet 113 from the main chamber 111, connecting the raw water inlet 113 with the auxiliary chamber 112, allowing raw water to enter the auxiliary chamber 112. Some of the raw water then flows from the auxiliary chamber 112 into the softening device 190, while the remaining portion flows to the soft water outlet 114, ensuring that water is available to the user during backwashing.

[0293] As shown in FIG30 , when the cleaning mode includes a forward wash mode, in the forward wash mode, the auxiliary valve core 134 is in the fourth auxiliary valve position, and the main valve core 124 is in the first main valve position. The main valve core 124 is used to pass raw water into the softening device 190, and the water in the softening device 190 is discharged through the auxiliary valve core 134 along the valve housing 110. In the third auxiliary valve position, the forward wash flow channel 138 of the auxiliary valve core 134 is connected, connecting the soft water inlet 119 with the drain channel 1114 of the valve housing 110. It should be noted that before the soft water valve is placed in the forward wash mode, it can be placed in the backwash mode, that is, the soft water valve is first cleaned to reduce the salinity of the water in the soft water valve. Then control the soft water valve to be in the forward wash mode. At this time, the salinity of the water in the soft water valve is already low and the user can use it. The forward wash operation can be understood as a backup cleaning step. That is to say, after the soft water valve has passed the backwash mode, the water in the soft water valve is already in a state that can be used normally, which ensures that the user can use water in the forward wash mode.

[0294] As shown in FIG44 , when the soft water valve includes a water production mode, a water injection mode, and a salt absorption mode, the auxiliary drive unit 135 is used to drive the auxiliary valve core 134 to rotate and switch between a first auxiliary valve position, a second auxiliary valve position, and a third auxiliary valve position. The first, second, and third auxiliary valve positions are sequentially arranged along the circumference of the auxiliary valve core 134 to facilitate position adjustment of the auxiliary valve core 134. The cleaning mode includes a forward cleaning mode. The auxiliary drive unit 135 is used to drive the auxiliary valve core 134 to rotate and switch between a first, second, third, and fourth auxiliary valve positions. The first, second, third, and fourth auxiliary valve positions are sequentially arranged along the circumference of the auxiliary valve core 134.

[0295] Regarding the description of the status and functional modes of the soft water valve, the structure of each flow channel is not described in detail here and can be combined with the above description of each mode.

[0296] During the operation of the soft water valve, the soft water valve is mainly in the water production mode. When the softening material in the softening device 190 needs to be regenerated, water is first injected into the salt tank 200 to execute the water injection mode, and then the salt absorption mode is executed to send a mixed solution of salt solution with regeneration function into the softening device 190. After that, the cleaning mode is executed. When the cleaning mode includes the forward washing mode and the backwash mode, the backwash mode can be executed first, and then the forward washing mode is executed.

[0297] In the water production mode, the main valve core 124 is in the first main valve position and the auxiliary valve core 134 is in the first auxiliary valve position. When the water injection mode is required, the position of the main valve core 124 does not need to be adjusted, and the auxiliary valve core 134 is adjusted to the second auxiliary valve position. After the water injection mode, the salt tank 200 needs to melt salt for a preset time to obtain a salt solution. At this time, it can be adjusted to the water production mode, and the position of the main valve core 124 does not need to be adjusted, and the auxiliary valve core 134 can be restored to the first auxiliary valve position. After the salt melting is completed, the salt absorption mode is executed, and the main valve core 124 needs to be adjusted to the third main valve position and the auxiliary valve core 134 needs to be adjusted to the third auxiliary valve position. For example, after the salt absorption mode, the backwash mode is first executed. At this time, the position of the main valve core 124 does not need to be adjusted, and the auxiliary valve core 134 is adjusted to the first auxiliary valve position. Then, when the forward wash mode is executed, the main valve core 124 needs to be adjusted to the first main valve position and the auxiliary valve core 134 needs to be adjusted to the fourth auxiliary valve position to complete the regeneration process of the softened material. Finally, adjust the soft water valve to the water production mode to continue the water production function.

[0298] In some cases, as shown in FIG43 , the main valve core 124 further includes a second main valve position, and the main valve core 124 is suitable for switching between the first main valve position, the second main valve position and the third main valve position. In the second main valve position, the main valve core 124 blocks the raw water inlet 113 and the main chamber 111, and the main valve core 124 blocks the raw water inlet 113 and the sub-chamber 112, and controls the sub-drive unit 135 to drive the position switching of the sub-valve core 134. At this time, the raw water in the raw water inlet 113 will not enter the soft water valve, and the water will stop flowing into the main chamber 111, the sub-chamber 112 and the softening device 190, completely blocking the raw water at the front end of the soft water valve. The water cannot pass through the softening device and no soft water will be produced. Both the main chamber and the sub-chamber will not When raw water enters, there is no constant pressure transmitted from the main chamber or the auxiliary chamber. The flow pressure of water on the auxiliary valve core 134 in the auxiliary chamber 112 is reduced, which can reduce the resistance of water pressure to the position switching of the auxiliary valve core 134, making the position switching of the auxiliary valve core 134 more labor-saving. It can also reduce the driving force provided by the auxiliary drive unit 135 to the auxiliary valve disc 131, thereby reducing power consumption and the loss of the auxiliary valve assembly 130, which helps to extend the life of the auxiliary valve assembly 130 and the life of the water softener. In addition, there is no excessive pressure inside the softening device, the main chamber, and the auxiliary chamber. The torque when the main valve core and the auxiliary valve core rotate is not large, which facilitates motor drive.

[0299] In the second main valve position, raw water can pass through the bypass valve and then flow into the soft water channel of the valve head for user use. Therefore, this state can meet the user's functional requirements of using only pure tap water. In the second main valve position, the main valve core 124 can control the auxiliary drive unit 135 to drive the auxiliary valve core 134 to switch between multiple auxiliary valve positions. Before the auxiliary valve core 134 needs to switch positions, switching the main valve core 124 to the second main valve position can reduce the resistance of water pressure to the position switching of the auxiliary valve core 134, making the position switching of the auxiliary valve core 134 more labor-saving and easy to operate.

[0300] In the second main valve position, the auxiliary drive unit drives the auxiliary valve core to switch between multiple auxiliary valve positions so that the state of the auxiliary valve core corresponds to one of the water production mode, water injection mode, salt absorption mode, backwash mode and forward wash mode, such as each mode corresponds to an auxiliary valve position, or the two modes share one auxiliary valve position.

[0301] In some cases, in the water production mode and the backwash mode, the auxiliary valve core is located in the same auxiliary valve position (such as the first auxiliary valve position mentioned above) to simplify the structure of the auxiliary valve core. Of course, other modes can also share the same auxiliary valve position.

[0302] The main valve core can seal the raw water from flowing into the softening device and the auxiliary chamber. During the switching of the auxiliary valve core position, the water in the softening device and the auxiliary chamber can be reduced from flowing into the salt tank at some auxiliary valve positions, thereby avoiding inaccurate water filling of the salt tank.

[0303] In some embodiments, when switching from the water production mode to the water injection mode, the position of the main valve core 124 needs to be adjusted to the second main valve position first, and then the position of the auxiliary valve core 134 is adjusted to the second auxiliary valve position. After the adjustment of the auxiliary valve core 134 is completed, the main valve core 124 returns to the first main valve position, and the water injection process can be performed; after the water injection is completed, the main valve core 124 is adjusted to the second main valve position again, and then the auxiliary valve core 134 is returned to the first auxiliary valve position, and then the main valve core 124 is adjusted back to the first main valve position. At this time, the salt tank connection port 1110 is in a molten salt state, the soft water valve is in the water production mode, and the user can take water. After the salt melting is completed, the salt absorption mode is carried out. At this time, the main valve core 124 is first adjusted to the second main valve position, and then the auxiliary valve core 134 is adjusted to the third auxiliary valve position, and then the main valve core 124 is adjusted to the third main valve position to execute the salt absorption mode; after the salt absorption mode is completed, it is adjusted to the backwash mode. At this time, the main valve core 124 is first adjusted to the second main valve position, and then the auxiliary valve core 134 is adjusted to the first auxiliary valve position, and then the main valve core 124 is adjusted to the third main valve position to execute the backwash mode; after the backwash mode, it is adjusted to the forward washing mode. At this time, the main valve core 124 is first adjusted to the second main valve position, and then the auxiliary valve core 134 is adjusted to the fourth auxiliary valve position, and then the main valve core 124 is adjusted to the first main valve position to execute the forward washing mode. After the forward washing mode is completed, it is necessary to adjust to the water production mode. First, adjust the main valve core 124 to the second main valve position, then adjust the auxiliary valve core 134 to the first auxiliary valve position, and then adjust the main valve core 124 to the first main valve position to produce water.

[0304] Referring to Figure 44, when the main valve core includes a first main valve position, a second main valve position and a third main valve position, the first main valve position, the second main valve position and the third main valve position are arranged in sequence along the circumferential direction, which is convenient for adjusting the state of the main valve core.

[0305] In the second main valve position, the main valve water inlet hole is disconnected from the main valve water inlet, realizing the disconnection of the raw water inlet from the main chamber, and the main valve water inlet hole is disconnected from the main and auxiliary connecting holes, realizing the disconnection of the raw water inlet from the auxiliary chamber, and stopping water from entering the soft water valve.

[0306] The active valve disc is provided with a main valve first groove. In the second main valve position, the main valve water inlet hole's orthographic projection on the active valve disc is located within the main valve first groove, and the main and auxiliary connecting holes are disconnected from the main valve first groove. In some embodiments, one of the main valve water inlet hole and the main and auxiliary connecting holes is aligned with the main valve first groove, and the orthographic projection of the other is located within the main valve first groove. As shown in Figure 43, the main valve first groove and the main valve water inlet hole correspond to each other. The main valve water inlet hole is completely covered and sealed by the main valve first groove, preventing water from passing through. Raw water from the raw water inlet cannot enter the main chamber.

[0307] In the second main valve position, the orthographic projection of the main and auxiliary connecting holes on the active valve plate is located in the area of ​​the main valve water inlet, which helps to balance the pressure of the main and static valve plates.

[0308] The active valve disc is provided with a second groove body of the main valve. In the second main valve position, the positive projection of the main valve drain hole on the active valve disc is located in the second groove of the main valve. The pressure of the active valve disc and the main static valve disc is balanced through the main valve drain hole and the second groove body of the main valve.

[0309] When the main valve core switches from the first or third main valve position to the second main valve position, a portion of the main valve water inlet hole connects to the main valve drain hole, which in turn connects to the drain outlet (which is connected to the external environment). Pressure within the softening device is released through the main valve drain hole, reducing the pressure at the bottom of the auxiliary valve disc. If pressure is not released, the pressure within the softening device will be transmitted to the auxiliary valve disc through the auxiliary static valve disc and the softening connection hole, increasing the torque of the auxiliary valve motor. In the second main valve position, raw water does not flow into the softening device, and the pressure within the softening device does not increase even after being released. Therefore, the second main valve position has the function of releasing pressure and reducing the rotational torque of the auxiliary valve core.

[0310] The above content explains the water production mode of the softening valve, other functional modes for regenerating the softening material in the softening device 190, and the switching between modes. Based on the above technical solution, when the softening valve is applied to a water softener, the user can obtain soft water of a single hardness from the water softener, that is, the hardness of the soft water produced by the water softener is not convenient to adjust. Therefore, the following content provides a technical solution for adjusting the hardness of soft water.

[0311] In some embodiments, as shown in Figures 31 to 34 , the valve housing 110 is configured with a raw water channel and a soft water channel. The raw water channel is located between the raw water inlet 113 and the main chamber 111, and the soft water channel is located between the soft water outlet 114 and the secondary chamber 112. A bypass valve 140 is connected between the raw water channel and the soft water channel, connecting or disconnecting the raw water channel and the soft water channel via the bypass valve 140. When the bypass valve 140 connects the raw water channel and the soft water channel, the raw water in the raw water channel can flow into the soft water channel under the influence of the water pressure from the raw water inlet 113 of the raw water channel. This allows the raw water to flow into the soft water channel, thereby adjusting the hardness of the water outlet from the soft water outlet 114.

[0312] A bypass valve 140 is connected between the raw water channel and the soft water channel. The installation position of the bypass valve 140 is flexible, which helps to reduce the volume of the soft water valve.

[0313] In some cases, when the water softening device is not producing water, the raw water channel and the soft water channel can be connected through the bypass valve 140 , and the user can get raw water from the soft water outlet 114 .

[0314] The bypass valve 140 can have various structures and can be selected according to needs. As shown in FIG34 , the bypass valve 140 can be a disc valve, which has a simple structure and is easy to disassemble and assemble.

[0315] As shown in Reference Figure 41, a raw water channel is formed in the first shell portion 1140 of the valve shell 110, and a soft water channel is formed in the second shell portion 1141 of the valve shell 110. The first shell portion 1140 is provided with a first connecting port 1134 connected to the raw water channel, and the second shell portion 1141 is provided with a second connecting port 1135 connected to the soft water channel. The valve shell 110 is also formed with a bypass cavity, and the bypass valve 140 core of the bypass valve 140 is located in the bypass cavity. The bypass valve 140 core is used to adjust the connection and disconnection of the first connecting port 1134 and the second connecting port 1135.

[0316] As shown in reference figure 34, the bypass valve 140 core may include a bypass static valve plate 142 and a bypass movable valve plate 141. The bypass static valve plate 142 is provided with a first bypass opening 1421 and a second bypass opening 1422. The first bypass opening 1421 corresponds to and is connected with the first connecting port 1134, and the second bypass opening 1422 corresponds to and is connected with the second connecting port 1135; the bypass movable valve plate 141 can move to close the first bypass opening 1421 and the second bypass opening 1422. At this time, the bypass valve 140 is closed, and the raw water channel is disconnected from the soft water channel; the bypass movable valve plate 141 can move to open the first bypass opening 1421 and the second bypass opening 1422. At this time, the bypass valve 140 is opened, and the raw water channel is connected with the soft water channel. The bypass movable valve plate 141 includes a first fan-shaped portion 1411 and a second fan-shaped portion 1412 . The first fan-shaped portion 1411 is used to open and close the first bypass opening 1421 , and the second fan-shaped portion 1412 is used to open and close the second bypass opening 1422 . The structure is simple and easy to process.

[0317] The bypass movable valve plate 141 is connected to the bypass motor 143 , and the bypass motor 143 is used to drive the bypass movable valve plate 141 to rotate. The state of the bypass valve 140 is switched by the rotation of the bypass movable valve plate 141 .

[0318] As shown in Figures 32 and 33 , the valve housing 110 is provided with a bypass chamber. In one embodiment, the valve housing 110 is formed with a bypass groove 1132, which connects a first communication port 1134 and a second communication port 1135. The bypass valve 140 core can be installed therein through the opening of the bypass groove 1132. The opening of the bypass groove 1132 is sealed by a cover 1133 to form the bypass chamber. The bypass chamber has a simple structure, facilitating molding of the valve housing 110 and assembly and disassembly of the bypass valve 140. The bypass stationary valve disc 142 is sealed to the inner wall of the valve housing 110 via a bypass sealing ring 144.

[0319] As shown in FIG. 35 , the user can also take raw water through the soft water valve. At this time, the main valve core 124 can be in the second main valve position.

[0320] Next, the structure of the valve housing 110 will be described.

[0321] Referring to Figures 1 to 6 and Figures 40 to 42, the valve housing 110 includes a first shell portion 1140, a second shell portion 1141 and a third shell portion 1142. A raw water channel is formed in the first shell portion 1140, a soft water channel is formed in the second shell portion 1141, and the third shell portion 1142 forms a main cavity 111 and a sub-cavity 112. The third shell portion 1142 also forms a raw water outlet 118 and a soft water inlet 119. The raw water outlet 118 and the soft water inlet 119 are located on the same side of the third shell portion 1142 to facilitate the installation of the softening device 190.

[0322] The first shell portion 1140 , the second shell portion 1141 , and the third shell portion 1142 are fixed to form an integrated valve housing 110 , thereby simplifying the structure of the valve housing 110 .

[0323] The first shell portion 1140 and the second shell portion 1141 are arranged in parallel, the third shell portion 1142 is at the first end of the first shell portion 1140 and the second shell portion 1141, the main cavity 111 and the sub-cavity 112 are arranged in parallel, the main cavity 111 and the first shell portion 1140 are located on the same side (right side), and the sub-cavity 112 and the second shell portion 1141 are located on the same side (left side), and the structural distribution of the valve housing 110 is more reasonable.

[0324] The valve housing 110 (e.g., the third housing portion 1142) is provided with a communication channel 1113 for connecting the raw water inlet 113 with the secondary chamber 112. The communication channel 1113 is openably connected to the raw water inlet 113 via a main valve core 124, thereby controlling whether the raw water inlet 113 is in communication with the secondary chamber 112. The outlet of the communication channel 1113 is in communication with the secondary chamber 112, and the inlet of the communication channel 1113 is openably connected to the raw water inlet 113 via the main valve core 124.

[0325] The valve housing 110 defines a softening connection port 1121, which corresponds to and communicates with the softening connection hole 1322 of the auxiliary static valve disc 132. This connection port 1121 connects the softening connection hole 1322 with the soft water inlet 119. By switching the position of the auxiliary valve disc 131, the softening device 190 and other flow paths can be adjusted on and off. The softening connection port 1121 is located between the soft water inlet 119 and the auxiliary valve core 134. The softening connection port 1121 is positioned adjacent to the auxiliary static valve disc 132, allowing for direct communication between the softening connection hole 1322 and the softening connection port 1121. The auxiliary valve core 134 is located between the softening connection port 1121 and the auxiliary chamber 112, allowing the auxiliary valve core 134 to control the communication between the softening connection port 1121 and the auxiliary chamber 112, and therefore between the auxiliary chamber 112 and the soft water inlet 119. The softening connection hole 1322 is facing the side of the soft water inlet 119, so that the softening connection hole 1322 can maintain normal communication with the softening connection port 1121, that is, the softening connection hole 1322 can maintain normal communication with the soft water inlet 119, which can simplify the structure of the auxiliary valve core 134. By controlling the rotation of the auxiliary valve plate 131, the softening connection hole 1322 can switch between a state of being connected to the auxiliary chamber 112 and a state of not being connected to the auxiliary chamber 112. When the softening connection hole 1322 does not need to be connected to the auxiliary chamber 112, the softening connection hole 1322 and the auxiliary chamber 112 can be blocked by the auxiliary valve plate 131.

[0326] The third housing portion 1142 is further provided with a raw water outlet 118 and a soft water inlet 119. The third housing portion 1142 is provided with a softening connection portion 1143 for connecting to a softening device 190. The softening device 190 can be connected to the valve housing 110 by at least one of a threaded connection, a snap connection, a plug-in connection, a fastener connection, etc. As shown in Figures 4 and 5 , the valve housing 110 is provided with external threads, and the softening device 190 is provided with internal threads. The softening device 190 is screwed to the valve housing 110 via the threaded structure, facilitating assembly and disassembly.

[0327] The third shell portion 1142 is also provided with a salt water injection port 1119, which corresponds to and is connected with the salt water injection hole 1324 of the auxiliary static valve plate 132, and the salt water injection port 1119 is connected with the jet inlet 161 of the jet channel; the third shell portion 1142 is also provided with a brine port 1120, which corresponds to and is connected with the brine hole 1323 of the auxiliary static valve plate 132, and the brine port 1120 can be connected with the jet outlet 162 of the jet channel, and the on-off adjustment of the jet channel and other flow paths is realized by switching the position of the auxiliary dynamic valve plate 131.

[0328] Auxiliary valve core 134 is located between salt water inlet 1119 and auxiliary chamber 112, allowing it to control the connection between salt water inlet 1119 and auxiliary chamber 112, thereby controlling the connection between auxiliary chamber 112 and the jet channel. The salt water inlet 1119 and auxiliary static valve plate 132 are positioned adjacent to each other, allowing direct communication between salt water inlet 1119 and salt water injection hole 1324. This simplifies the communication structure between salt water inlet 1119 and salt water injection hole 1324. The salt water injection hole 1324 faces the side of the salt water injection port 1119, so that the salt water injection hole 1324 and the salt water injection port 1119 can maintain normal communication, which can simplify the structure of the auxiliary valve core 134. By controlling the rotation of the movable valve plate, the salt water injection hole 1324 can switch between a state of being connected to the auxiliary chamber 112 and a state of not being connected to the auxiliary chamber 112. When the salt water injection hole 1324 does not need to be connected to the auxiliary chamber 112, the auxiliary movable valve plate 131 can be used to block the salt water injection hole 1324 and the auxiliary chamber 112.

[0329] The saline inlet 1120 and the auxiliary static valve disc 132 are positioned adjacent to each other, allowing for direct communication between the saline inlet 1120 and the saline hole 1323. This simplifies the communication structure between the saline inlet 1120 and the saline hole 1323. The saline hole 1323 faces toward the side of the saline inlet 1120, allowing the saline inlet 1120 and the saline hole 1323 to maintain normal communication. This simplifies the structure of the auxiliary valve core 134. By controlling the rotation of the movable valve disc, the saline hole 1323 switches between being connected to the jet channel and being disconnected from the jet channel. When communication between the saline hole 1323 and the jet channel is not desired, the auxiliary movable valve disc 131 can be used to block the saline hole 1323 from the jet channel.

[0330] The valve housing 110 (such as the third housing portion 1142) is provided with at least one of a first drain opening 1125 and a second drain opening 1124. The first drain opening 1125 corresponds to and communicates with the main valve drain hole 1222. By controlling the position of the active valve disc 121, the first drain opening 1125 and the corresponding flow channel are switched, allowing sewage to be discharged through the first drain opening 1125. The second drain opening 1124 corresponds to and communicates with the auxiliary valve drain hole 1321. By controlling the position of the auxiliary valve disc 131, the second drain opening 1124 and the corresponding flow channel are switched, allowing sewage to be discharged through the second drain opening 1124. When the valve housing 110 is further provided with a drain channel 1114, the drain channel 1114 communicates with at least one of the first drain opening 1125 and the second drain opening 1124. The end of the drain channel 1114 forms a drain outlet 115, allowing sewage to be discharged through the drain outlet 115, thereby simplifying the sewage drainage pipeline. A flow limiting component is provided in the sewage discharge channel 1114 to adjust the sewage discharge flow rate; the sewage discharge channel 1114 is located above the valve housing 110 .

[0331] It should be noted that when the softened material is regenerated, the main valve drain hole 1222 and the auxiliary valve drain hole 1321 work independently and will not work at the same time. When the two drain holes are connected to the drain port 115 through the drain channel 1114, when the main valve drain hole 1222 works, the auxiliary valve drain hole 1321 does not work, and there will be no sewage backflow. Similarly, when the auxiliary valve drain hole 1321 works, the main valve drain hole 1222 does not work.

[0332] As shown in Figures 41 and 42 , when the valve housing 110 is provided with a drain passage 1114, the valve housing 110 includes a housing and a cover 1116 connected to the housing. The housing forms a drain groove 1117, and a first opening is formed along the length of the drain groove 1117. The cover 1116 is mounted on the housing to close the first opening, thereby forming a drain passage 1114 within the valve housing 110. The end of the drain passage 1114 forms a drain port 115. The function of the drain passage 1114 is the same as described above and will not be further described. The structure of the drain passage 1114 is not limited to the aforementioned structure and can be selected as needed. Among them, when manufacturing the soft water valve, a corresponding groove can be directly opened on the valve shell 110 to form a drain groove 1117. By covering the drain groove 1117 with a cover 1116 to close the first opening, a drain channel 1114 can be formed without forming an internal flow channel inside the valve shell 110, making the mold manufacturing of the soft water valve head simpler and more convenient.

[0333] The valve housing 110 is provided with a main chamber communication hole 116, which connects the main chamber 111 with the raw water outlet 118. This allows water in the main chamber 111 to flow through the main chamber communication hole 116 to the raw water outlet 118, thereby filling the softening device 190. Water at the raw water outlet 118 can flow into the main chamber 111 through the main chamber communication hole 116. For example, wastewater in the softening device 190 can be discharged into the main chamber 111 and then out of the valve housing 110 through the sewage channel 1114, thus completing the sewage discharge operation.

[0334] A main chamber communication hole 116 is formed in the wall of the main chamber 111. A main valve core 124 is located between the main chamber communication hole 116 and the raw water inlet 113. This allows the main valve core 124 to control the flow of raw water inlet 113 and the main chamber communication hole 116. This in turn controls whether raw water can flow through the main chamber communication hole 116 and the raw water outlet 118 into the softening device 190, thereby controlling the injection of water into the softening device 190. In the salt absorption mode and backwash mode, the main valve core 124 can block the main chamber 111 from the raw water inlet 113, that is, it can block the main chamber communication hole 116 and the raw water inlet 113. This prevents sewage in the main chamber 111 from flowing through the raw water outlet 118 and the main chamber communication hole 116 to the raw water inlet 113, thereby preventing the sewage from flowing into the raw water inlet 113. This prevents contamination of the raw water at the raw water inlet 113. The sewage can only flow through the main valve core 124 to the sewage discharge channel 1114 and finally out of the valve housing 110.

[0335] The valve housing 110 is constructed with a water outlet passage 1112. A sub-chamber communication hole 1111 is provided on the wall of the sub-chamber 112. The water outlet passage 1112 connects the sub-chamber communication hole 1111 with the soft water outlet 114. The sub-chamber communication hole 1111 and the soft water inlet 119 are controlled by a sub-valve core 134. The sub-chamber 112 maintains normal communication with the water outlet passage 1112 via the sub-chamber communication hole 1111, allowing water within the sub-chamber 112 to flow to the soft water outlet 114. By switching the flow path of the sub-valve core 134, the sub-chamber 112 can also connect to other flow paths to achieve different functions. In other words, water within the sub-chamber 112 can flow along at least two flow paths. One flow path is fixed, flowing from the sub-chamber 112 to the soft water outlet 114, while the other flow paths are changed based on the control switching of the sub-valve core 134. As long as there is usable water within the sub-chamber 112, there can be usable water at the soft water outlet 114. The auxiliary valve core 134 is arranged between the auxiliary chamber communicating hole 1111 and the soft water inlet 119, so that the auxiliary valve core 134 can control the on-off between the auxiliary chamber communicating hole 1111 and the soft water inlet 119. In the salt absorption mode, the auxiliary valve core 134 can block the auxiliary chamber communicating hole 1111 and the soft water inlet 119, preventing the salt water at the soft water inlet 119 from flowing into the auxiliary chamber communicating hole 1111, ensuring that the water flowing from the auxiliary chamber communicating hole 1111 to the soft water outlet 114 will not be contaminated by the salt water.

[0336] The auxiliary cavity communication hole 1111 and the soft water inlet 119 are respectively located on both sides of the auxiliary valve core 134 , so that the auxiliary valve core 134 can control the connection and disconnection between the auxiliary cavity communication hole 1111 and the soft water inlet 119 .

[0337] It should be noted that the “both sides” in “both sides of the auxiliary valve core 134 ” mentioned here has the same meaning as the “both sides” in “both sides of the auxiliary valve core 134 ” mentioned above, and will not be repeated.

[0338] 1 and 2 , the water outlet channel is formed at the front end of the sub-cavity 112 , for example.

[0339] Based on the above content, the water softener is connected to the user's main pipeline through a soft water valve. The design concept of the soft water valve in the embodiment of the present application is that two chambers, a main chamber 111 and a sub-chamber 112, are formed in the valve housing 110. Each chamber is equipped with a valve assembly, that is, the main chamber 111 is equipped with a main valve assembly 120, and the sub-chamber 112 is equipped with a sub-valve assembly 130. The main valve assembly 120 cooperates with the sub-valve assembly 130 to realize the function of the soft water valve, which can reduce the volume of the soft water valve, help increase the soft water outlet flow of the soft water valve, and simplify the structure of the valve plate.

[0340] As shown in FIG40 , one side of the third shell 1142 is open to form a main tank body and a sub-tank body with openings. The openings of the main tank body and the sub-tank body are covered by the cover 1130 to form the main cavity 111 and the sub-cavity 112. That is, the third shell 1142 cooperates with the cover 1130 to form the main cavity 111 and the sub-cavity 112.

[0341] The main chamber 111 and the secondary chamber 112 have essentially the same internal space and structure. The difference lies in the structure, number, and location of the holes, which in turn define the functions of the main chamber 111 and the secondary chamber 112. The two chambers are circular, with the left and right chambers arranged horizontally. The axial direction (corresponding to the direction of the valve assembly's rotational axis) of the chambers is horizontal, and the resin tank connected to the bottom is vertically positioned. Accordingly, the resin tank is placed upright in the water softener.

[0342] The above content describes the structure of the valve housing 110. Now, the structures of the main valve assembly 120 and the auxiliary valve assembly 130 will be described with reference to FIG. 7 to FIG. 30 and FIG. 40.

[0343] Referring to Figures 7, 9, 11 and 12, the main valve assembly 120 includes a main valve core 124 and a main drive unit 125. The main valve core 124 includes a main static valve plate 122 and an active valve plate 121. The main static valve plate 122 is fixed in the main cavity 111 of the valve housing 110, and the active valve plate 121 is rotatably arranged in the main cavity 111.

[0344] Among them, when the soft water valve is in different modes, the hole structure of the main static valve disc 122 is located in the groove of the active valve disc 121 (the groove here can be the aforementioned first groove of the main valve, or it can be a process groove) of the active valve disc 121. The hole structure of the main static valve disc 122 is closed by the groove, which can improve the sealing effect of the hole structure of the main static valve disc 122, and reduce the contact area between the main static valve disc 122 and the active valve disc 121, so that the friction between the active valve disc 121 and the main static valve disc 122 is convenient for driving the active valve disc 121 to rotate relative to the main static valve disc 122, and the groove is connected with the space on one side of the main static valve disc 122 through the hole structure of the main static valve disc 122, so that water can enter the groove, which can balance the water pressure and balance the pressure of the active valve disc 121 and the main static valve disc 122.

[0345] The active valve disc 121 is provided with a main valve water inlet 1211 and a main valve first groove 1212 ; the main static valve disc 122 is provided with a main valve water inlet hole 1221 .

[0346] In some cases, the main static valve disc 122 is provided with a main valve drain hole 1222 , and in some other cases, the main static valve disc 122 is provided with a main and auxiliary connecting holes 1223 .

[0347] In some cases, the active valve disc 121 is further provided with a main valve second groove 1213 . In some embodiments, the main valve second groove 1213 may be a main valve process groove.

[0348] Illustratively, the main valve water inlet 1211, the main valve first groove 1212 and the main valve second groove 1213 are arranged sequentially along the circumference of the active valve plate 121 to facilitate control of the rotation of the active valve plate 121; the main valve water inlet hole 1221, the main valve sewage hole 1222 and the main and auxiliary connecting holes 1223 are arranged sequentially along the circumference of the main static valve plate 122 to facilitate control of the holes of the main static valve plate 122 to cooperate with the active valve plate 121.

[0349] The opening area of ​​the main valve process groove is greater than or equal to the opening area of ​​the hole structure of the main static valve plate 122, ensuring that the groove structure can surround the hole structure, making the hole structure more sealed and avoiding water leakage.

[0350] For example, referring to Figures 17, 20 and 29, in the water production mode, water injection mode and forward washing mode, the main valve water inlet 1211 and the main valve water inlet hole 1221 are connected to form a main water production channel 126, and the main water production channel 126 connects the raw water inlet and the main cavity 111, so that the raw water can flow into the main cavity 111. At this time, the main and secondary connecting holes 1223 of the main static valve disc 122 are projected on the active valve disc 121 in the second groove 1213 of the main valve, that is, the main valve water inlet 1211 and the main valve first groove 1212 are both disconnected from the main and secondary connecting holes 1223, and the main valve sewage hole 1222 is projected on the active valve disc 121 in the first groove 1212 of the main valve, that is, the main valve water inlet 1211 and the main valve second groove 1213 are both disconnected from the main and secondary connecting holes 1223. The main and secondary connecting holes 1223 are closed by the second groove 1213 of the main valve, and the main valve sewage hole 1222 is closed by the first groove 1212 of the main valve, so as to improve the sealing effect of the main and secondary connecting holes 1223 and the main valve sewage hole 1222.

[0351] For example, the opening area of ​​the main valve second groove 1213 is greater than or equal to the opening area of ​​the main and auxiliary connection holes 1223. This ensures that the main valve second groove 1213 can surround the main and auxiliary connection holes 1223, making the main and auxiliary connection holes 1223 more sealed and preventing water leakage.

[0352] As shown in Figures 23 and 26 , in salt absorption mode and backwash mode, the main valve water inlet 1221 communicates with the main and auxiliary connecting holes 1223 through the main valve first groove 1212. Raw water from the raw water inlet enters the auxiliary chamber through the main valve water inlet 1221, the main valve first groove 1212, and the main and auxiliary connecting holes 1223. Part of the space in the main valve water inlet 1221 communicates with the main valve first groove 1212, while part of the space in the main valve water inlet 1221 corresponds to and is enclosed by the main valve second groove 1213. The main valve drain hole 1222 communicates with the main valve water inlet 1211.

[0353] Referring to Figures 8, 10, 13 and 14, the auxiliary valve assembly 130 includes an auxiliary valve core 134 and an auxiliary drive part 135. The auxiliary valve core 134 includes an auxiliary static valve plate 132 and an auxiliary dynamic valve plate 131. The auxiliary static valve plate 132 is fixed in the auxiliary cavity 112 of the valve housing 110, and the auxiliary dynamic valve plate 131 is rotatably arranged in the auxiliary cavity 112.

[0354] Among them, when the soft water valve is in different modes, at least part of the hole structure of the auxiliary static valve disc 132 is located in the groove of the auxiliary dynamic valve disc 131 (the groove here can be the auxiliary valve process groove, or the aforementioned auxiliary valve first groove) when the orthographic projection of the auxiliary dynamic valve disc 131 is. Taking the auxiliary valve process groove as an example, the hole structure of the auxiliary static valve disc 132 is closed by the auxiliary valve process groove, which can improve the sealing effect of the hole structure of the auxiliary static valve disc 132 and reduce the contact area between the auxiliary static valve disc 132 and the auxiliary dynamic valve disc 131. The friction between the auxiliary dynamic valve disc 131 and the auxiliary static valve disc 132 facilitates driving the auxiliary dynamic valve disc 131 to rotate relative to the auxiliary static valve disc 132. In addition, the auxiliary valve process groove is connected to the space on one side of the auxiliary static valve disc 132 through the hole structure of the auxiliary static valve disc 132, so that water can enter the auxiliary valve process groove, which can balance the water pressure and balance the pressure of the auxiliary dynamic valve disc 131 and the auxiliary static valve disc 132.

[0355] 13 and 14 , the auxiliary movable valve disc 131 is provided with an auxiliary valve water inlet 1314 and an auxiliary valve first groove 1311 ; the auxiliary static valve disc 132 is provided with a softening connection hole 1322 , a brine hole 1323 and a brine injection hole 1324 .

[0356] In some cases, the auxiliary static valve plate 132 is provided with an auxiliary valve drain hole 1321 .

[0357] In some cases, the auxiliary valve disc 131 is provided with one or more of the auxiliary valve second groove 1312, the auxiliary valve third groove 1313, the auxiliary valve fourth groove 1315, and the auxiliary valve fifth groove 1316. In some embodiments, the auxiliary valve process groove may be any one or more of the auxiliary valve second groove 1312, the auxiliary valve third groove 1313, the auxiliary valve fourth groove 1315, and the auxiliary valve fifth groove 1316. The auxiliary valve process groove may also be a groove structure other than the auxiliary valve second groove 1312, the auxiliary valve third groove 1313, the auxiliary valve fourth groove 1315, and the auxiliary valve fifth groove 1316.

[0358] Illustratively, the auxiliary valve first groove 1311, the auxiliary valve second groove 1312, the auxiliary valve third groove 1313, the auxiliary valve water inlet 1314, the auxiliary valve fourth groove 1315 and the auxiliary valve fifth groove 1316 are sequentially arranged along the circumference of the auxiliary movable valve disc 131 to facilitate control of the rotation of the auxiliary movable valve disc 131; the auxiliary valve sewage discharge hole 1321, the softening connection hole 1322 and the salt absorption water injection hole 1324 are sequentially arranged along the circumference of the auxiliary static valve disc 132 to facilitate control of the holes of the auxiliary static valve disc 132 to cooperate with the auxiliary movable valve disc 131.

[0359] The opening area of ​​the auxiliary valve process groove is greater than or equal to the opening area of ​​the hole structure of the auxiliary static valve plate 132, ensuring that the groove structure can surround the hole structure, making the hole structure more sealed and avoiding water leakage.

[0360] In some cases, the auxiliary valve first groove 1311 extends radially along the auxiliary valve disc 131. Rotation of the auxiliary valve disc 131 switches the auxiliary valve first groove 1311 between connecting or disconnecting the saline hole 1323 and the softening connection hole 1322. During movement, the auxiliary valve first groove 1311 can be constantly connected to the saline hole 1323, or can be adjusted to be on and off. When the auxiliary valve first groove 1311 is constantly connected to the saline hole 1323, the saline hole 1323 can be located at the center of the auxiliary valve disc 131.

[0361] Among them, in the water production mode, the auxiliary valve water inlet 1314 and the softening connection hole 1322 are connected to form an auxiliary water production channel 136. The auxiliary water production channel 136 connects the soft water inlet 119 and the auxiliary cavity 112, so that the water at the soft water inlet 119 can flow into the auxiliary cavity 112. At this time, the auxiliary valve drain hole 1321 of the auxiliary static valve disc 132 is located in the fourth groove 1315 of the auxiliary valve as the positive projection on the auxiliary active valve disc 131, that is, the auxiliary valve water inlet 1314 is disconnected from the auxiliary valve drain hole 1321, and the brine hole 1323 is located in the first groove 1311 of the auxiliary valve as the positive projection on the active valve disc 121, that is, the auxiliary valve water inlet 1314 and other groove structures of the auxiliary active valve disc 131 are disconnected from the brine hole 1323, and the brine injection hole 1324 is located in the positive projection on the auxiliary active valve disc 131. Located in the third groove 1313 of the auxiliary valve, that is, the auxiliary valve water inlet 1314 and other groove structures of the auxiliary movable valve plate 131 are disconnected from the salt absorption water injection hole 1324, the auxiliary valve drain hole 1321 is closed by the fourth groove 1315 of the auxiliary valve, the brine hole 1323 is closed by the first groove 1311 of the auxiliary valve, and the salt absorption water injection hole 1324 is closed by the third groove 1313 of the auxiliary valve, which can improve the sealing effect of the auxiliary valve drain hole 1321, the brine hole 1323 and the salt absorption water injection hole 1324.

[0362] For example, the opening area of ​​the auxiliary valve fourth groove 1315 is greater than or equal to the opening area of ​​the auxiliary valve drain hole 1321. This ensures that the auxiliary valve fourth groove 1315 can surround the auxiliary valve drain hole 1321, making the auxiliary valve drain hole 1321 more sealed and preventing water leakage.

[0363] Exemplarily, the opening area of ​​the auxiliary valve first groove 1311 is greater than or equal to the opening area of ​​the brine hole 1323 , and the opening area of ​​the auxiliary valve third groove 1313 is greater than or equal to the opening area of ​​the brine injection hole 1324 .

[0364] In the water injection mode, the softening connection hole 1322 and the salt absorption water injection hole 1324 are connected to form a water injection channel 137, so that the soft water at the soft water inlet 119 can be injected into the salt tank 200 through the water injection channel 137. At this time, the orthographic projection of the auxiliary valve drain hole 1321 on the auxiliary valve disc 131 is located in the fifth groove 1316 of the auxiliary valve, that is, the auxiliary valve water inlet 1314 and other groove structures of the auxiliary valve disc 131 are disconnected from the auxiliary valve drain hole 1321, and the orthographic projection of the salt water hole 1323 on the auxiliary valve disc 131 is located in the first groove 1311 of the auxiliary valve, that is, the auxiliary valve water inlet 1314 and other groove structures of the auxiliary valve disc 131 are disconnected from the salt water hole 1323.

[0365] Exemplarily, the opening area of ​​the auxiliary valve fifth groove 1316 is larger than the opening area of ​​the auxiliary valve drain hole 1321 .

[0366] In the salt absorption mode, the auxiliary valve water inlet 1314 and the salt absorption water injection hole 1324 are connected to form a first salt absorption flow channel 1341, and the salt water hole 1323 is connected to the softening connection hole 1322 through the auxiliary valve first groove 1311 to form a second salt absorption flow channel 1342. At this time, the orthographic projection of the auxiliary valve drain hole 1321 on the auxiliary valve disc 131 is located within the auxiliary valve second groove 1312, that is, the auxiliary valve water inlet 1314 and other groove structures of the auxiliary valve disc 131 are disconnected from the auxiliary valve drain hole 1321.

[0367] Illustratively, the opening area of ​​the auxiliary valve second groove 1312 is greater than or equal to the opening area of ​​the auxiliary valve drain hole 1321 .

[0368] In the backwash mode, the state of the auxiliary valve core 134 is the same as that in the water production mode, and will not be described again.

[0369] Among them, in the positive washing mode, the orthographic projection of the salt absorption water injection hole 1324 on the auxiliary valve disc 131 is located in the second groove 1312 of the auxiliary valve, that is, the auxiliary valve drain hole 1321 and other groove structures of the auxiliary valve disc 131 are disconnected from the salt absorption water injection hole 1324, and the orthographic projection of the brine hole 1323 on the auxiliary valve disc 131 is located in the first groove 1311 of the auxiliary valve, that is, the auxiliary valve water inlet 1314 and other groove structures of the auxiliary valve disc 131 are disconnected from the brine hole 1323.

[0370] Illustratively, the opening area of ​​the second groove 1312 of the auxiliary valve is greater than or equal to the opening area of ​​the salt absorption and water injection hole 1324 .

[0371] The above content describes the structure of the water softener valve. The water softener valve can be used in a water softener and cooperates with the softening device 190 and the salt tank 200 in the water softener to soften the raw water and facilitate users to use soft water.

[0372] A specific embodiment of the present application is described below with reference to FIG1 and FIG44 .

[0373] The water softener valve includes:

[0374] The valve housing 110 includes a raw water inlet 113, a soft water outlet 114, a main chamber 111, a secondary chamber 112, a raw water outlet 118, and a soft water inlet 119. The raw water outlet 118 and the soft water inlet 119 can be connected via a softening device 190. The secondary chamber 112 is connected to the soft water outlet 114, and the main chamber 111 is connected to the raw water outlet 118. A communication channel 1113 is provided between the main chamber 111 and the secondary chamber 112. A secondary communication port 1136 is provided on the wall of the secondary chamber 112. The secondary communication port 1136 is located at the outlet end of the communication channel 1113.

[0375] The main valve core 124 is located in the main chamber 111 , wherein the main chamber 111 is used to open and close the communication channel 1113 and the raw water inlet 113 ;

[0376] The auxiliary valve core 134 is located in the auxiliary cavity 112. The auxiliary valve core 134 includes an auxiliary static valve plate 132 and an auxiliary movable valve plate 131 that can move relative to the auxiliary static valve plate 132. The auxiliary static valve plate 132 is provided with a softening connection hole 1322, and the softening connection hole 1322 is connected to the soft water inlet 119. The auxiliary movable valve plate 131 is provided with an auxiliary valve water inlet 1314, and the auxiliary valve water inlet 1314 is connected to the auxiliary cavity 112 to open and close the soft water inlet 119 and the auxiliary cavity 112; based on the main valve core 124 connecting the raw water inlet 113 and the connecting channel 1113, and the auxiliary valve water inlet 1314 is connected to the softening connection hole 1322, the opening of the auxiliary valve water inlet 1314 faces the auxiliary connecting port 1136.

[0377] The relative position relationship between the secondary connecting port 1136 and the secondary valve core is: the secondary connecting port 1136 is close to the softening connection hole 1322, and the secondary connecting port 1136 and the softening connection hole 1322 are on the same side of the secondary valve core. If the softening connection hole 1322 is on the right side of the secondary valve core, the secondary connecting port 1136 is on the right side of the secondary valve core, which can shorten the path between the secondary connecting port and the softening connection hole, facilitate the layout of the connecting channel, and also facilitate the position layout of the soft water inlet and the softening connection hole.

[0378] Among them, the opening of the auxiliary valve water inlet faces the auxiliary connecting port. In some embodiments, the raw water in the connecting channel 1113 is transported to the opening of the auxiliary valve water inlet 1314 through the auxiliary connecting port 1136. The raw water can be delivered to the softening connecting hole 1322 through the auxiliary valve water inlet 1314, which helps the raw water in the connecting channel 1113 to efficiently enter the softening connecting hole 1322 and enter the softening device through the soft water outlet.

[0379] In the backwash mode, the softening valve is fluidically connected along the auxiliary valve water inlet toward the softening connection hole. The auxiliary connection port, the auxiliary valve water inlet and the soft water inlet are connected, so that the raw water quickly enters the softening device through the softening connection hole.

[0380] As shown in FIG10 , the auxiliary driving valve disc 131 includes a main body 1317 and a shielding portion 1318 fixedly connected to the main body (see FIG10 , the dashed line demarcating the main body and shielding portion). The main body 1317 is sealedly connected to the auxiliary static valve disc 132. The shielding portion 1318 cooperates with the main body 1317 to shield the shaft of the auxiliary driving unit, protecting the shaft and reducing the impact of water in the auxiliary chamber 112 on the shaft. A diversion space is formed between the shielding portion 1318 and the auxiliary static valve disc 132. The area corresponding to the shielding portion 1318 forms the opening of the auxiliary valve water inlet 1314. The shielding portion 1318 guides raw water from the auxiliary communication port 1136 into the diversion space. When the water level in the auxiliary chamber 112 is high, it can also guide water into the softening connection hole 1322 to supply water to the softening device and perform the backwash mode.

[0381] The shielding portion 1318 covers at least a portion of the softening connection hole 1322 in its orthographic projection on the auxiliary static valve disc 132. When the shielding portion 1318 covers a portion of the softening connection hole 1322 in its orthographic projection on the auxiliary static valve disc 132, an opening is formed between the shielding portion 1318 and the valve housing, facilitating water entry into the auxiliary cavity. The resistance to water entry into the auxiliary cavity is low, and the contact area between the auxiliary movable valve disc and the valve housing is reduced, which can reduce the rotational resistance of the auxiliary movable valve disc and the driving torque required for the auxiliary movable valve disc, resulting in a low resistance to water entry from the softening connection hole into the auxiliary cavity. When the shielding portion 1318 covers all of the softening connection hole 1322 in its orthographic projection on the auxiliary static valve disc 132, it helps raw water from the auxiliary communication port quickly enter the softening connection hole, but also results in relatively high resistance to water entry from the softening connection hole into the auxiliary cavity.

[0382] The thickness of the shielding portion is smaller than that of the main body, so that a flow guide space is formed between the shielding portion 1318 and the auxiliary static valve plate 132 , which has a simple structure and is easy to process.

[0383] The auxiliary valve core is used to open and close the brine tank connection port and the soft water inlet. The auxiliary valve core can send soft water into the brine tank connection port, and can also send the salt solution in the brine tank into the softening device. When the auxiliary chamber is connected to the brine tank connection port, the raw water in the auxiliary chamber can flow into the brine tank.

[0384] In yet other embodiments, as shown in Figures 2 and 3 , a softening channel 1138 is provided between the soft water inlet 119 and the softening connection hole 1322. The softening channel 1138 and the communication channel 1113 are located on the same side of the valve housing 110, and the softening channel 1138 and the communication channel 1113 share a portion of the housing wall. The reasonable positioning of the softening channel 1138 and the communication channel 1113 simplifies the structure of the valve housing and facilitates the flow of water in the corresponding flow paths in each mode.

[0385] A raw water outlet channel 1137 is formed between the main chamber 111 and the raw water outlet 118. A water outlet channel 1112 is formed between the soft water outlet 114 and the secondary chamber 112. A connecting channel 1113 and a softening channel 1138 are provided between the raw water outlet channel 1137 and the water outlet channel 1112. The compact placement of the various channels in the valve housing 110 helps reduce the volume of the valve housing and optimize its structure.

[0386] The valve housing 110 includes a shell and a softening connection part 1143 for connecting a softening device, as shown in Figures 2 and 3, which illustrate the structure of the shell. The shell is provided with a raw water inlet 113, a soft water outlet 114, a main cavity 111 and a sub-cavity 112. The softening connection part 1143 is provided with a raw water outlet 118 and a soft water inlet 119. Figure 4 illustrates the structure in which the shell and the softening connection part 1143 are fixedly connected. The shell and the softening connection part form a raw water outlet channel 1137, a water outlet channel 1112, a connecting channel 1113 and a softening channel 1138.

[0387] The housing includes the first housing portion 1140 , the second housing portion 1141 and the third housing portion 1142 .

[0388] The housing is provided with an assembly end face (as shown in Figures 2 and 3, an end face having multiple notches). The original outlet channel 1137, the water outlet flow channel 1112, the connecting channel 1113, and the softening channel 1138 all have notches formed on the side of the assembly end face. This facilitates the processing of the original outlet channel 1137, the water outlet flow channel 1112, the connecting channel 1113, and the softening channel 1138, thereby simplifying the structure of the valve housing. The softening connection portion is provided with a mating end face (not shown in the figures), and the assembly end face is sealedly connected to the mating end face to close the notch. The valve housing cooperates with the softening connection portion through the housing to form the original outlet channel 1137, the water outlet flow channel 1112, the connecting channel 1113, and the softening channel 1138, thereby simplifying the processing of the valve housing.

[0389] In combination with the above, the soft water valve of the present application, through the cooperation of the valve housing 110, the main chamber 111, the auxiliary chamber 112, the main valve assembly 120 and the auxiliary valve assembly 130, enables the soft water valve to switch between water production mode, water injection mode, salt absorption mode and cleaning mode, and the user can use water in the water production mode, water injection mode, salt absorption mode and cleaning mode of the soft water valve, thereby meeting the user's 24-hour water demand.

[0390] An embodiment of the second aspect of the present application, as shown in Figure 45, provides a water softener, including a softening device 190 and a soft water valve in any one of the above embodiments, the inlet of the softening device 190 is connected to the raw water outlet 118, and the outlet of the softening device 190 is connected to the soft water inlet 119, thereby realizing water flow control between the soft water valve and the softening device 190.

[0391] The softening device 190 is located below the valve housing 110 of the water softener, and the space layout inside the water softener is reasonable. The softening device 190 can be a resin tank, and the resin material in the resin tank can be regenerated as needed to ensure the softening effect.

[0392] The softening connection 1143 of the water softener valve is provided with a threaded hole, which connects the resin tank to the interior of the water softener valve. Currently, most resin tank inlets use a standard 2.5-inch threaded hole, so the threaded hole of the water softener valve matches this. The threaded portion mainly consists of two openings: a central hole, which connects to the water outlet pipe inside the resin tank. The outer periphery of the central hole is provided with an outlet for feeding raw water from the water softener valve into the resin tank, which contains resin. After being filtered by the resin, the tap water in the resin tank flows through the central hole (i.e., the soft water outlet of the resin tank) to the soft water inlet 119 of the water softener valve, and finally flows out of the soft water outlet 114 of the water softener valve for use by the user.

[0393] The dotted line with an arrow in FIG45 illustrates the flow path of raw water entering the resin tank from above and then being sent upward through the outlet pipe of the resin tank to be softened water.

[0394] The water softener further includes a salt tank 200 , which is connected to the water softening valve via a salt tank connection port 1110 . The salt tank 200 can be arranged in parallel with the softening device 190 . The position of the salt tank 200 is flexible and can be arranged as needed.

[0395] The softening valve is mounted on the resin tank, next to which is a salt tank 200. The softening valve's salt tank connection port 1110 is connected to the salt tank 200 via a flexible pipe. During salt aspiration, the ejector 160 draws salt water from the salt tank 200 into the softening valve. When filling the salt tank 200, water from the softening valve is also injected into the salt tank 200 via this pipe.

[0396] By using the water softener valve in the above embodiment, the softening device 190 and the salt tank 200 within the water softener can be replaced to increase the softened water flow rate. Of course, after replacing the water softener valve, the structure and shape of other components within the water softener can also be adjusted accordingly.

[0397] There are two 1-inch pipe interfaces at the rear of the entire shell of the water softener, which are divided into an inlet pipe and an outlet pipe. The inlet pipe is connected to external tap water, and is connected to the internal space of the valve shell 110 through the raw water inlet 113 through the inlet pipe, so that the raw water flows into the inside of the soft water valve. The soft water flowing out of the soft water valve is connected to the outlet pipe through the soft water outlet 114 for user use.

[0398] The embodiments of this application can adjust the water flow path of a water softener in different states. The entire valve head is compact and uses a ceramic design, which provides high reliability and stable operation. The multifunctional water softener valve adopts a two-chamber design, a simple and ingenious valve body flow path structure, and a strong overall appearance structure, which helps to reduce the volume.

[0399] The above embodiments are intended only to illustrate the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that any combination, modification, or equivalent replacement of the technical solution of the present application does not depart from the scope of the technical solution of the present application and should be included in the scope of the claims of the present application.

Claims

1. A soft water valve, comprising: A valve housing, comprising a raw water inlet, a soft water outlet, a main chamber, a secondary chamber, a raw water outlet and a soft water inlet; the raw water outlet and the soft water inlet can be connected through a softening device, the raw water outlet is connected to the main chamber, the soft water outlet is connected to the secondary chamber, a communication channel is provided between the main chamber and the secondary chamber, a secondary communication port is provided on the wall of the secondary chamber, and the secondary communication port is located at the outlet end of the communication channel; A main valve core, the main valve core is located in the main cavity, and the main valve core is used to open and close the communication channel and the raw water inlet; A secondary valve core, the secondary valve core is located in the secondary cavity, the secondary valve core comprises a secondary static valve plate and a secondary movable valve plate movable relative to the secondary static valve plate, the secondary static valve plate is provided with a softening connection hole, the softening connection hole is connected to the soft water inlet, the secondary movable valve plate is provided with a secondary valve water inlet, the secondary valve water inlet is connected to the secondary cavity, so as to open and close the soft water inlet and the secondary cavity; Based on the main valve core being connected with the raw water inlet and the communication channel, and the auxiliary valve water inlet being connected with the softening connection hole, the opening of the auxiliary valve water inlet faces the auxiliary communication port.

2. The water softener according to claim 1, wherein: The auxiliary movable valve plate is connected to the auxiliary driving part, and the auxiliary movable valve plate includes a main body and a shielding part fixedly connected to the main body, the main body is sealingly connected to the auxiliary static valve plate, the shielding part and the main body shield the shaft of the auxiliary driving part, a guide space is formed between the shielding part and the auxiliary static valve plate, and the area corresponding to the shielding part forms the opening of the auxiliary valve water inlet.

3. The soft water valve according to claim 2, wherein: The shielding portion covers at least a portion of the softening connection hole in an orthographic projection on the auxiliary static valve plate.

4. The soft water valve according to claim 2 or 3, wherein: In the backwash mode, the soft water valve is fluidically connected along the auxiliary valve water inlet toward the softening connection hole, and the auxiliary communication port, the guide space and the soft water inlet are connected.

5. The soft water valve according to any one of claims 2 to 4, wherein: The thickness of the shielding portion is smaller than the thickness of the main body portion.

6. The water softening valve according to any one of claims 1 to 5, wherein: The valve housing is provided with a salt box connection port. Based on the connection passage disconnecting the auxiliary chamber from the raw water inlet, the auxiliary valve core is used to connect and disconnect the salt box connection port and the soft water inlet, or, based on the connection passage connecting the auxiliary chamber and the raw water inlet, the auxiliary valve core is used to connect and disconnect the salt box connection port and the auxiliary chamber.

7. The soft water valve according to any one of claims 1 to 6, wherein: A softening channel is provided between the soft water inlet and the softening connection hole. The softening channel and the communicating channel are located on the same side of the valve housing, and the softening channel and the communicating channel share a portion of the housing wall.

8. The water softening valve according to claim 7, wherein: A raw water outlet channel is formed between the main cavity and the raw water outlet, a water outlet channel is formed between the soft water outlet and the secondary cavity, and the connecting channel and the softening channel are arranged between the raw water outlet channel and the water outlet channel.

9. The water softening valve according to claim 8, wherein: The valve housing includes a shell and a softening connection part for connecting the softening device, the shell is provided with the raw water inlet, the soft water outlet, the main cavity and the sub-cavity, the softening connection part is provided with the raw water outlet and the soft water inlet, and the shell and the softening connection part form the raw water outlet channel, the water outlet flow channel, the connecting channel and the softening channel.

10. The water softening valve according to claim 9, wherein: The shell is provided with an assembly end face, the original outlet channel, the water outlet channel, the connecting channel and the softening channel all form notches on the side where the assembly end face is located, the softening connection part is provided with a matching end face, and the assembly end face is sealingly connected to the matching end face to close the notch.

11. The water softening valve according to any one of claims 1 to 10, wherein: The main valve core includes a main static valve plate and an active valve plate that can move relative to the main static valve plate, the main static valve plate is fixed to the valve housing, the active valve plate is provided with a main valve first groove, the main static valve plate is provided with a main valve water inlet hole and a main-sub connecting hole, the main valve water inlet hole is connected to the raw water inlet, the main-sub connecting hole is connected to the connecting channel, and the main valve water inlet hole and the main-sub connecting hole can be connected through the main valve first groove.

12. A water softener, comprising a softening device and the softening valve according to any one of claims 1 to 11, wherein the softening device is connected to the raw water outlet and the soft water inlet.

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