Soft water valve, soft water valve control method and water softener

Abstract

The invention relates to the field of water treatment, and provides a water softening valve, a control method of the water softening valve and a water softener, the water softening valve comprises a valve shell, a main valve assembly and an auxiliary valve assembly, and the valve shell comprises a raw water inlet, a soft water outlet, a main cavity, an auxiliary cavity, a raw water outlet and a soft water inlet; the main valve assembly comprises a main valve element and a main driving part used for driving the main valve element to move. The auxiliary valve assembly comprises an auxiliary valve element and an auxiliary driving part used for driving the auxiliary valve element to move. The main valve core is located at the first main valve position, and the raw water inlet is communicated with the raw water outlet through the main valve core; the auxiliary valve element is located at the second auxiliary valve position, the soft water inlet is communicated with the salt box connecting port through the auxiliary valve element, the soft water valve is in a water injection mode, and in the water injection mode, the raw water inlet, the main valve element, the raw water outlet, the soft water inlet, the auxiliary valve element and the salt box connecting port form a communication flow path. According to the soft water valve, double cavities and double valves are matched, water can be injected into a salt box, and a flow path is simple.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and in particular to a soft water valve, a control method of the soft water valve and a water softener. Background Art

[0002] As people's living standards continue to improve, the requirements for daily water use are also getting higher and higher. Residential water contains a large amount of calcium and magnesium ions. Long-term use of water with high hardness is harmful to the body. For example, if clothes are washed with hard water for a long time, the clothes will turn yellow and lack luster. Residential water pipes will be blocked by scale. The scale of some heating equipment will affect the heat exchange efficiency, and the equipment will be damaged over time. Reducing or removing calcium and magnesium ions in water and turning hard water into soft water will have many benefits for people's lives. For example, taking a bath with soft water will not dry the skin, and using soft water for skin care will make the skin smoother. Water heaters will also improve heat exchange efficiency and reduce maintenance costs.

[0003] In the related art, water softening equipment is usually used to remove calcium and magnesium ions in water. The water softening equipment is usually equipped with a water softening valve. The function of the water softening valve is concentrated, the structure is complex, the water path inside the water softening valve is complex, and the structure of the water softening valve needs to be optimized. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the related art. To this end, the present invention provides a soft water valve, which can realize the water injection function through the structure of double chambers and double valves and the cooperation of the double chambers and double valves.

[0005] The invention also provides a control method for a soft water valve.

[0006] The invention also provides a water softener.

[0007] A soft water valve according to an embodiment of the first aspect of the present invention comprises:

[0008] A valve housing, the valve housing comprising a raw water inlet, a soft water outlet, a main chamber, a secondary chamber, a raw water outlet, a soft water inlet and a salt box connection port, the raw water outlet and the soft water inlet can be connected via a softening device, and the salt box connection port is used to connect to the salt box;

[0009] A main valve assembly, the main valve assembly comprising a main valve core and a main driving part for driving the main valve core to move;

[0010] A secondary valve assembly, the secondary valve assembly comprising a secondary valve core and a secondary driving part for driving the secondary valve core to move;

[0011] The main valve core is located at the first main valve position, and the raw water inlet is connected to the raw water outlet through the main valve core; the auxiliary valve core is located at the second auxiliary valve position, and the soft water inlet is connected to the salt tank connecting port through the auxiliary valve core, and the soft water valve is in the water injection mode. In the water injection mode, the raw water inlet, the main valve core, the raw water outlet, the soft water inlet, the auxiliary valve core and the salt tank connecting port form a connecting flow path.

[0012] According to the soft water valve of the embodiment of the present invention, one of the raw water inlet and the raw water outlet is always connected to the main chamber, and the other of the raw water inlet and the raw water outlet is connected to the main chamber through the main valve core.

[0013] One of the soft water inlet and the auxiliary chamber is always connected to the soft water outlet, and the other of the soft water inlet and the auxiliary chamber and the soft water outlet can be regulated on and off by the auxiliary valve core.

[0014] According to the soft water valve of the embodiment of the present invention, in the water injection mode, the raw water inlet is always connected to the main chamber, the raw water outlet is connected to the main chamber through the main valve core, the soft water outlet is always connected to the soft water inlet, and the auxiliary chamber is connected to the salt tank connecting port through the auxiliary valve core.

[0015] According to the soft water valve of the embodiment of the present invention, in the water injection mode, the raw water outlet is always connected to the main chamber, the raw water inlet is connected to the main chamber through the main valve core, the secondary chamber is always connected to the soft water outlet, and the soft water inlet is connected to the salt tank connection port through the secondary valve core.

[0016] According to the soft water valve of the embodiment of the present invention, the soft water inlet is communicated with the auxiliary cavity through the auxiliary valve core, and the soft water inlet is communicated with the soft water outlet through the auxiliary cavity.

[0017] According to an embodiment of the present invention, the soft water valve further includes at least one of a main triggering member and an auxiliary triggering member, wherein the main triggering member is located on the movement path of the main driving part, and the auxiliary triggering member is located on the movement path of the auxiliary driving part.

[0018] According to the soft water valve of the embodiment of the present invention, the main valve assembly also includes a main encoder connected to the main drive unit, and the auxiliary valve assembly also includes an auxiliary encoder connected to the auxiliary drive unit, and at least one of the main encoder and the auxiliary encoder is set as an AB phase encoder.

[0019] A control method for a soft water valve according to an embodiment of the second aspect of the present invention is applied to any one of the soft water valves described above, comprising:

[0020] Controlling the main driving part to rotate to a first main angle to drive the main valve core to move to the first main valve position;

[0021] The auxiliary driving part is controlled to rotate to a second auxiliary angle to drive the auxiliary valve core to move to a second auxiliary valve position, so that the soft water valve is switched to a water injection mode.

[0022] According to the control method of the soft water valve of the embodiment of the present invention, before the step of controlling the auxiliary driving part to rotate to the second auxiliary angle to drive the auxiliary valve core to move to the second auxiliary valve position, the method further includes:

[0023] Controlling the main driving part to rotate to a second main angle to drive the main valve core to move to a second main valve position, in which the main valve core disconnects the raw water inlet and the raw water outlet;

[0024] After the step of controlling the auxiliary driving part to rotate to the second auxiliary angle to drive the auxiliary valve core to move to the second auxiliary valve position,

[0025] The main driving part is controlled to rotate to a first main angle to drive the main valve core to move to a first main valve position.

[0026] According to the control method of the soft water valve of the embodiment of the present invention, the main driving part is set to a main initial angle at the main initial position, and the included angle between the second main angle and the main initial angle is greater than or equal to 100° and less than or equal to 180°.

[0027] According to the control method of the soft water valve of the embodiment of the present invention, in the second main valve position, the main valve core disconnects the raw water inlet and the auxiliary chamber.

[0028] According to the control method of the soft water valve of the embodiment of the present invention, in the step of controlling the main driving part to rotate to the first main angle to drive the main valve core to move to the first main valve position,

[0029] Controlling the main driving part to rotate to a main initial position, and then controlling the main driving part to rotate from the main initial position to the first main angle;

[0030] And / or, in the step of controlling the auxiliary driving part to rotate to a second auxiliary angle to drive the auxiliary valve core to move to a second auxiliary valve position,

[0031] The auxiliary driving part is controlled to rotate to the auxiliary initial position, and then the auxiliary driving part is controlled to rotate from the auxiliary initial position to the second auxiliary angle.

[0032] According to the control method of the soft water valve of the embodiment of the present invention, in the step of controlling the main driving part to rotate to the main initial position,

[0033] Upon receiving a main trigger signal from a main trigger member, determining that the main driving part rotates to the main initial position, wherein when the main driving part moves to the main initial position, the main trigger member sends out the main trigger signal;

[0034] And / or, in the step of controlling the auxiliary driving part to rotate to the auxiliary initial position,

[0035] When the auxiliary trigger signal of the auxiliary trigger member is received, it is determined that the auxiliary driving part rotates to the auxiliary initial position, wherein when the auxiliary driving part moves to the auxiliary initial position, the auxiliary trigger member sends the auxiliary trigger signal.

[0036] According to the control method of the soft water valve of the embodiment of the present invention, the step of re-controlling the main driving part to rotate from the main initial position to the first main angle includes:

[0037] Obtaining the first main pulse number of the main driving part required to rotate from the main initial position to the first main angle,

[0038] controlling the main driving unit to rotate the first main pulse number to reach the first main angle;

[0039] The step of re-controlling the auxiliary driving part to rotate from the auxiliary initial position to the second auxiliary angle includes:

[0040] Obtain the second secondary pulse number of the secondary driving part required to rotate from the secondary initial position to the second secondary angle,

[0041] The auxiliary driving unit is controlled to rotate by the second auxiliary pulse number to reach the second auxiliary angle.

[0042] According to the control method of the soft water valve of the embodiment of the present invention, the auxiliary driving part is set to a auxiliary initial angle at the auxiliary initial position, and the included angle between the second auxiliary angle and the auxiliary initial angle is less than or equal to 90° and greater than or equal to 30°.

[0043] According to the control method of the soft water valve of the embodiment of the present invention, the step of controlling the main driving part to rotate to the first main angle to drive the main valve core to move to the first main valve position includes:

[0044] Obtain the main current angle of the main driving part,

[0045] Determine a current main angle from the main current angle to the first main angle, and control the main driving unit to rotate the current main angle in the direction of the first main angle to reach the first main angle;

[0046] and / or,

[0047] The step of controlling the auxiliary driving part to rotate to a second auxiliary angle to drive the auxiliary valve core to move to a second auxiliary valve position includes:

[0048] Obtain the secondary current angle of the secondary driving unit,

[0049] Drive the secondary current angle to the current secondary angle of the second secondary angle, and control the secondary driving unit to rotate the current secondary angle in the direction of the second secondary angle to reach the second secondary angle.

[0050] According to the control method of the soft water valve of the embodiment of the present invention, in the step of obtaining the main current angle of the main driving part,

[0051] By acquiring the current mode of the soft water valve, determining the angular position of the main driving part corresponding to the current mode as the main current angle;

[0052] And / or, in the step of obtaining the auxiliary current angle of the auxiliary driving unit,

[0053] By acquiring the current mode of the soft water valve, the angular position of the auxiliary driving part corresponding to the current mode is determined as the auxiliary current angle.

[0054] According to the control method of the soft water valve of the embodiment of the present invention, the raw water inlet is connected to the main chamber through the raw water channel, the soft water outlet is connected to the auxiliary chamber through the soft water channel, and a bypass valve is provided between the raw water channel and the soft water channel;

[0055] Determine that the soft water valve is switched to the water injection mode,

[0056] Receiving the target outlet water hardness of the soft water outlet, the soft water hardness of the soft water inlet, and the raw water hardness of the raw water inlet;

[0057] In combination with the soft water hardness and the raw water hardness, the ratio of the soft water outlet flow rate to the bypass valve outlet flow rate is determined, the opening of the bypass valve is adjusted, and the soft water outlet is controlled to discharge water at the target outlet water hardness, wherein the soft water outlet flow rate is measured by a flowmeter upstream of the bypass valve.

[0058] A water softener according to an embodiment of the third aspect of the present invention comprises a softening device and a softening valve as described above, wherein the softening device connects the raw water outlet and the soft water inlet.

[0059] The water softener according to the embodiment of the present invention has a simple structure and is convenient for users to take water.

[0060] A water softener according to an embodiment of the fourth aspect of the present invention includes a controller, and the controller is used to execute the control method of the water softening valve as described in any one of the above.

[0061] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0063] Figure 1 is a schematic diagram of the three-dimensional structure of a soft water valve provided in an embodiment of the present invention;

[0064] Figure 2 This is one of the schematic diagrams of the bottom view of the soft water valve provided by the embodiment of the present invention;

[0065] Figure 3 This is one of the three-dimensional structural schematic diagrams of the soft water valve provided by the embodiment of the present invention from the bottom perspective;

[0066] Figure 4 This is the second bottom view structural schematic diagram of the soft water valve provided by the embodiment of the present invention;

[0067] Figure 5 This is a second schematic diagram of the three-dimensional structure of the soft water valve provided by the embodiment of the present invention from a bottom perspective;

[0068] Figure 6 1 is a schematic diagram of the three-dimensional structure of a soft water valve provided by a first embodiment of the present invention from a side rear perspective, wherein the valve housing in the figure is not equipped with a main valve assembly and a secondary valve assembly;

[0069] Figure 7 is a structural schematic diagram of a main valve assembly provided by an embodiment of the present invention;

[0070] Figure 8 is a structural schematic diagram of a secondary valve assembly provided by an embodiment of the present invention;

[0071] Fig. 9 is a schematic diagram of the three-dimensional structure of the main valve core provided in an embodiment of the present invention;

[0072] Fig.10 is a schematic diagram of the three-dimensional structure of the auxiliary valve core provided in an embodiment of the present invention;

[0073] Fig.11 is a schematic diagram of the structure of the main static valve plate provided by an embodiment of the present invention, in which the main static valve plate is shown facing the side of the active valve plate;

[0074] Fig.12 is a schematic diagram of the structure of the active valve plate provided in an embodiment of the present invention, in which the active valve plate is shown facing the side of the main static valve plate;

[0075] Fig.13 is a schematic diagram of the structure of the auxiliary static valve plate provided in an embodiment of the present invention, in which the auxiliary static valve plate is shown facing the side of the auxiliary dynamic valve plate;

[0076] Fig.14 is a schematic diagram of the structure of the auxiliary movable valve plate provided in an embodiment of the present invention, in which the auxiliary movable valve plate is shown facing the side of the auxiliary static valve plate;

[0077] Fig.15 is a schematic diagram of a water path of a water softener provided by an embodiment of the present invention;

[0078] Fig.16 is a schematic diagram of the water path of the water softener in the water production mode provided by an embodiment of the present invention;

[0079] Fig.17 It is a structural schematic diagram of the main valve core provided by an embodiment of the present invention in a water production mode, and the main valve core is in a first main valve position;

[0080] Fig.18 is a structural schematic diagram of the auxiliary valve core provided by an embodiment of the present invention in a water production mode, wherein the auxiliary valve core is in a first auxiliary valve position;

[0081] Fig.19 is a schematic diagram of the water path of a water softener in a water injection mode provided by an embodiment of the present invention;

[0082] Fig. 20 is a structural schematic diagram of a main valve core in a water injection mode provided by an embodiment of the present invention, wherein the main valve core is in a first main valve position;

[0083] Fig.21 is a schematic structural diagram of the auxiliary valve core provided by an embodiment of the present invention in a water injection mode, wherein the auxiliary valve core is in a second auxiliary valve position;

[0084] Fig. 22 is a schematic diagram of the water path of a water softener in a salt absorption mode provided by an embodiment of the present invention;

[0085] Fig.23 is a structural schematic diagram of the main valve core provided by an embodiment of the present invention in a salt absorption mode, wherein the main valve core is in a third main valve position;

[0086] Fig.24 is a structural schematic diagram of the auxiliary valve core provided by an embodiment of the present invention in a salt absorption mode, wherein the auxiliary valve core is in a third auxiliary valve position;

[0087] Fig.25 is a schematic diagram of the water path of a water softener in a backwash mode provided by an embodiment of the present invention;

[0088] Fig.26 is a structural schematic diagram of a main valve core in a backwash mode provided by an embodiment of the present invention, wherein the main valve core is in a third main valve position;

[0089] Fig. 27 is a schematic structural diagram of an auxiliary valve core in a backwash mode provided by an embodiment of the present invention, wherein the auxiliary valve core is in a first auxiliary valve position;

[0090] Fig.28 is a schematic diagram of the water path of a water softener in a forward wash mode provided by an embodiment of the present invention;

[0091] Fig.29 is a structural schematic diagram of a main valve core in a forward flushing mode provided by an embodiment of the present invention, wherein the main valve core is in a first main valve position;

[0092] Fig.30 is a schematic structural diagram of an auxiliary valve core in a forward washing mode provided by an embodiment of the present invention, wherein the auxiliary valve core is in a fourth auxiliary valve position;

[0093] Fig.31 It is a schematic diagram of a water path of a water softener with adjustable water hardness provided by an embodiment of the present invention;

[0094] Fig.32 is a schematic structural diagram of a soft water valve provided by an embodiment of the present invention;

[0095] Fig.33 is a schematic diagram of the structure of a soft water valve provided by an embodiment of the present invention, and Fig.32 The difference is that the position of the bypass moving valve plate is different, and the opening between the raw water channel and the soft water channel changes;

[0096] Fig.34 is a schematic structural diagram of a bypass valve provided in an embodiment of the present invention;

[0097] Fig.35 is a schematic diagram of a structure for taking tap water through a water softener provided by an embodiment of the present invention;

[0098] Fig.36 1 is a schematic diagram of the three-dimensional structure of a soft water valve provided by an embodiment of the present invention, in which the ejector is in a disassembled state, and the main driving part and the auxiliary driving part are not shown;

[0099] Fig.37 is a schematic diagram of the three-dimensional structure of the ejector provided in an embodiment of the present invention;

[0100] Fig.38 1 is a partial cross-sectional structural schematic diagram of an ejector provided in an embodiment of the present invention installed in a valve housing, wherein the dotted lines with arrows in the figure indicate the flow paths of raw water and salt solution in the salt absorption mode;

[0101] Fig.391 is a partial cross-sectional structural schematic diagram of an ejector provided by an embodiment of the present invention in a state of being installed in a valve housing, wherein the dotted line with an arrow in the figure indicates the flow path of raw water in a water injection mode;

[0102] Fig.40 is a schematic structural diagram of a soft water valve provided by an embodiment of the present invention;

[0103] Fig.41 It is a schematic diagram of the top view structure of the present invention;

[0104] Fig.42 is a schematic structural diagram of a valve housing provided by an embodiment of the present invention;

[0105] Fig.43 is a schematic diagram of the structure of a water softener provided by an embodiment of the present invention, wherein the dotted arrows in the figure indicate the water path in the softening device;

[0106] Fig.44 is a structural schematic diagram of a main valve core provided by an embodiment of the present invention being located at a second main valve position;

[0107] In the above waterway diagram, the dotted arrows indicate the flow path of water; Fig.17 , Fig. 20 , Fig.23 , Fig.26 , Fig.29 The main static valve plate is shown above the active valve plate, and the view from the main static valve plate to the active valve plate is shown; Fig.18 , Fig.21 , Fig.24 , Fig. 27 , Fig.30 It shows that the auxiliary static valve plate is above the auxiliary dynamic valve plate, and the perspective from the auxiliary static valve plate to the auxiliary dynamic valve plate.

[0108] Fig.45 is a structural schematic diagram of a soft water valve provided by another embodiment of the present invention; Fig.46 is a structural schematic diagram of a valve housing provided by another embodiment of the present invention;

[0109] Fig.47 is a structural schematic diagram of a main valve core provided by another embodiment of the present invention;

[0110] Fig.48 is a structural schematic diagram of a secondary valve core provided by another embodiment of the present invention;

[0111] Fig.49 is a schematic diagram of the structure of a main static valve plate provided by another embodiment of the present invention, in which the main static valve plate is shown facing the active valve plate;

[0112] Fig.50 is a schematic structural diagram of an active valve plate provided by another embodiment of the present invention, in which the active valve plate is shown facing the side of the main static valve plate;

[0113] Fig.51 is a schematic structural diagram of an auxiliary static valve plate provided by another embodiment of the present invention, in which the auxiliary static valve plate is shown facing the side of the auxiliary dynamic valve plate;

[0114] Fig.52 is a schematic structural diagram of an auxiliary movable valve plate provided by another embodiment of the present invention, in which the auxiliary movable valve plate is shown facing the side of the auxiliary static valve plate;

[0115] Fig.53 is a structural schematic diagram of a main valve core in a first main valve position provided by another embodiment of the present invention;

[0116] Fig.54 is a structural schematic diagram of a main valve core in a first auxiliary valve position provided by another embodiment of the present invention;

[0117] Fig.55 is a structural schematic diagram of a secondary valve core provided by another embodiment of the present invention being in a fourth secondary valve position corresponding to a water production mode;

[0118] Fig.56 is a structural schematic diagram of a main valve core in a third main valve position provided by another embodiment of the present invention;

[0119] Fig.57 is a structural schematic diagram of a second auxiliary valve position corresponding to a salt absorption mode provided by another embodiment of the present invention;

[0120] Fig.58 is a structural schematic diagram of a fifth auxiliary valve position corresponding to a backwash mode provided by another embodiment of the present invention;

[0121] Fig.59 is a structural schematic diagram of a third auxiliary valve position corresponding to the auxiliary valve core in the forward washing mode provided by another embodiment of the present invention;

[0122] Fig.60 is a structural schematic diagram of a main valve core in a second main valve position provided by another embodiment of the present invention;

[0123] Fig.61 1 is a schematic diagram of the structure of the cover plate provided in an embodiment of the present invention, in which the numbers 1 to 4 on the left side of the figure are used to represent the four auxiliary valve positions of the auxiliary valve core, and the numbers 1 to 3 on the right side are used to represent the three main valve positions of the main valve core;

[0124] Fig.62 1 is a schematic diagram of the structure of a cover plate provided by another embodiment of the present invention, in which the numbers 1 to 5 on the left side of the figure are used to represent the five auxiliary valve positions of the auxiliary valve core, and the numbers 1 to 3 on the right side are used to represent the three main valve positions of the main valve core;

[0125] Fig.63It is a flow chart of a control method of a soft water valve provided in an embodiment of the present invention.

[0126] Reference numerals:

[0127] 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 box connection port; 1111, auxiliary chamber connecting hole; 1112, water outlet flow channel; 1113, connecting channel; 1114, sewage channel; 1115, filtering channel; 1116, cover; 1117, sewage tank; 1119, salt water inlet; 1120, salt water inlet; 1121, softening connection port; 1124, second sewage discharge opening; 1125, first sewage discharge opening; 1132, bypass groove; 1133, cover member; 1134, first communication port; 1135, second communication port; 1136, installation channel; 1137, cover plate; 1140, first shell; 1141, second shell; 1142, third shell; 1143, softening connection portion;

[0128] 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 hole; 1222, main valve sewage hole; 1223, main and auxiliary connecting holes; 124, main valve core; 125, main driving part; 1251, main shaft assembly; 126, main water control flow channel; 127, first sewage discharge flow channel; 128, connecting flow channel; 129, main trigger;

[0129] 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; 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 driving unit; 1351. Auxiliary shaft assembly; 136. Auxiliary water control flow channel; 137. Water injection flow channel; 138. Positive wash flow channel; 139. Auxiliary trigger;

[0130] 321, active valve disc; 3211, main valve water inlet; 3212, main valve first slot; 3213, main valve second slot; 3214, shielding part; 322, main static valve disc; 3221, main valve water inlet; 3222, main valve drain hole;

[0131] 331, auxiliary moving valve plate; 3311, auxiliary valve first trough; 3312, auxiliary valve second trough; 3313, auxiliary valve third trough; 3314, auxiliary valve water inlet; 332, auxiliary static valve plate; 3321, auxiliary valve drain hole; 3322, softening connection hole; 3323, brine outlet; 3324, brine injection hole;

[0132] 110, valve housing; 316, main chamber inlet; 3111, communication channel; 3117, sewage process port; 3119, salt absorption water injection port; 3120, brine port; 3121, softening connection port; 3124, second sewage opening; 3125, first sewage opening; 3126, water inlet; 140, bypass valve; 141, bypass movable valve plate; 1411, first fan-shaped portion; 1412, second fan-shaped portion; 142, bypass static valve plate; 1421, first bypass opening; 1422, second bypass opening; 143, bypass motor; 144, bypass sealing ring;

[0133] 150. Flow meter;

[0134] 160, ejector; 161, jet inlet; 162, jet outlet; 163, suction port; 164, first flow channel; 165, second flow channel; 166, jet flow limiting member; 190, softening device;

[0135] 200. Salt box. DETAILED DESCRIPTION

[0136] The following embodiments of the present invention are described in further detail in conjunction with 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.

[0137] In the description of the embodiments of the present invention, 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 positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. 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 invention, unless otherwise specified, "multiple", "multiple roots", and "multiple groups" mean two or more.

[0138] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0139] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the 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. The first feature being "below", "below" and "below" the 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.

[0140] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 embodiment of the present invention. 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0141] Embodiments of the present invention, referring to Figures 1 to 62 As shown, a soft water valve applied to a water softener is provided, and the soft water valve is used to adjust the flow path change of the water softener to realize the switching of multiple functional modes through the soft water valve.

[0142] refer to Figures 1 to 6 , Fig.45 , Fig.46 and Fig.43 As shown, an embodiment of the present invention 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 chamber 111 and a sub-chamber 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 chamber 111 and the sub-chamber 112, switching of multiple functional modes can be achieved.

[0143] 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 sent to the softening device 190 through the soft water valve, and the soft water softened by the softening device 190 is sent back to the soft water valve, and 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 box 200 through the salt box connection port 1110 of the soft water valve, and the water injected into the salt box 200 can be raw water or soft water, so that the water dissolves the salt in the salt box 200; after the water is injected into the salt box 200, the salt in the salt box 200 can be dissolved for a period of time, and this process can be called salt melting mode; In the salt mode, the salt water in the salt box 200 is sent to the softening device 190 through the soft water valve, and the water used to clean 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 used to clean 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. The backwash mode can be understood as raw water passing into the softening device 190 through the soft water inlet 119 and then discharged into the soft water valve through the raw water outlet 118. The forward wash mode can be understood as raw water passing into the softening device 190 through the raw water outlet 118 and then discharged into the soft water valve through the soft water inlet 119.

[0144] It should be noted that raw water can be understood as water introduced into the raw water inlet 113 of the softening valve, such as tap water, and the hardness of raw water is greater than the hardness of soft water. The softening device 190 includes a resin tank, and the resin in the resin tank softens the raw water to obtain soft water. Of course, the softening device 190 can also be other structures that can be used to soften raw water.

[0145] refer to Figures 2 to 6 , Figures 9 to 14 as well as Fig.21As shown, the valve housing 110 includes a raw water inlet 113, a soft water outlet 114, a main chamber 111, a sub-chamber 112, a raw water outlet 118 and a soft water inlet 119. The raw water inlet 113 is used to be connected to a raw water pipeline so that raw water enters the valve housing 110 of the soft water valve, and at least one of the main chamber 111 and the sub-chamber 112 can be communicated with the raw water inlet 113, that is, the raw water can flow into at least one of the main chamber 111 and the sub-chamber 112, and then the flow direction of the raw water is 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 send the soft water out 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. Among them, reference Figure 5 and Figure 6 As shown, the main chamber 111 and the raw water outlet 118 are connected, which can be understood as being normally connected. When water enters the main chamber 111, water can flow to the softening device through the raw water outlet 118. When water does not enter the main chamber 111, the raw water outlet 118 stops supplying water to the softening device. There is no need to regulate the on-off of the main chamber 111 and the raw water outlet 118, which can simplify the structure of the main valve core 124. Raw water enters the valve housing 110 through the raw water inlet 113, and then the flow direction of the raw water is controlled by the main valve assembly 120, so that the raw water flows to the main chamber 111 or the sub-chamber 112. When the raw water flows to the main chamber 111, the raw water can flow into the softening device 190 from the raw water outlet 118. When the raw water flows to the sub-chamber 112, at least part of the raw water can flow to the soft water outlet 114 and be discharged from the soft water outlet 114 to the soft water valve. Of course, the main chamber 111 and the raw water outlet 118 can also be regulated by the on-off of the main valve core 124 (refer to Fig.45 and Fig.46 ).

[0146] Exemplarily, the main chamber 111 is provided with a main chamber connecting hole 116, and the main chamber connecting hole 116 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 connecting hole 116, or the water at the raw water outlet 118 can flow into the main chamber 111 through the main chamber connecting hole 116.

[0147] It can also be understood that one of the raw water inlet and the raw water outlet is always connected to the main chamber, and the other of the raw water inlet and the raw water outlet is connected to the main chamber through the main valve core.

[0148] In some cases, the above content describes the situation where "the raw water outlet is always connected to the main chamber". At this time, the raw water inlet and the main chamber can be adjusted through the main valve core to adjust the flow direction of the raw water. When the raw water inlet is connected to the main chamber through the main valve core, the raw water enters the main chamber through the main valve core, and the raw water in the main chamber can enter the softening device through the raw water outlet. When the raw water inlet and the main chamber are disconnected through the main valve core, the raw water inlet is blocked from sending water to the main chamber, and the raw water cannot be sent to the softening device through the main chamber.

[0149] In some cases, reference Fig.45 and Fig.46 As shown, the raw water inlet is always connected to the main chamber, and the raw water outlet and the main chamber are regulated by the main valve core. It can be understood that the raw water inlet can deliver water to the main chamber. When the raw water outlet is connected to the main chamber through the main valve core, the raw water in the main chamber flows to the raw water outlet through the main valve core to be delivered to the softening device. When the raw water outlet is disconnected from the main chamber through the main valve core, the main chamber no longer delivers water to the softening device. The above-mentioned secondary chamber 112 is connected to the soft water outlet 114. It can be understood that 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 get the water in the secondary chamber 112 through the soft water outlet 114. It can be raw water or soft water. Water can be taken in multiple modes. When the secondary chamber 112 is not filled with water, the user cannot get the water in the secondary chamber 112. The water in the secondary chamber 112 can also be delivered to the salt box 200 or the softening device 190 through the secondary valve core 134. When there is liquid in the sub-chamber in each functional mode (water production mode, water injection mode, salt absorption mode or cleaning mode), the soft water valve is in a state of continuous water extraction to meet the user's water demand. The technical solution of the present invention allows the user to continuously extract water from the sub-chamber 112 by keeping the sub-chamber 112 inflowing water, so as to achieve the purpose of 24-hour water use. The soft water inlet 119 and the soft water outlet 114 are regulated by the on-off of the sub-valve core. When the soft water inlet 119 and the soft water outlet 114 are connected through the sub-valve core, it can be understood that the soft water inlet 119 is connected to the sub-chamber 112 through the sub-valve core, and the soft water outlet 114 is connected to the soft water inlet 119 through the sub-valve core, and the structure is simple. When the soft water inlet 119 and the soft water outlet 114 are disconnected through the sub-valve core, the soft water outlet 114 cannot take soft water. If the sub-chamber 112 is connected to the raw water inlet 113, the soft water outlet 114 can take raw water.

[0150] It can also be understood that one of the soft water inlet 119 and the auxiliary chamber 112 is always connected to the soft water outlet 114, and the other of the soft water inlet 119 and the auxiliary chamber 112 is connected to the soft water outlet 114 through the auxiliary valve core.

[0151] The above content describes the "sub-chamber 112 and the soft water outlet 114 are always connected". In some cases, refer to Fig.45 and Fig.46As shown, the soft water inlet 119 and the soft water outlet 114 are always connected, and the sub-cavity 112 and the soft water outlet 114 are regulated by the on-off of the sub-valve core. It can be understood that the soft water flowing out of the soft water inlet 119 can be directly obtained through the soft water outlet 114. When the sub-cavity 112 and the soft water outlet 114 are connected through the sub-valve core, based on the connection between the soft water inlet 119 and the soft water outlet 114, the solution in the sub-cavity 112 can be sent to the softening device 190 through the soft water inlet 119, such as the salt absorption mode and the backwash mode. When the sub-cavity 112 and the soft water outlet 114 are disconnected, the sub-cavity 112 is also disconnected from the soft water inlet 119, and the sub-cavity 112 cannot transport the solution to the softening device 190 through the soft water outlet 114 and the soft water inlet 119. Exemplarily, the sub-chamber 112 is provided with a sub-chamber communication hole 1111, and the sub-chamber communication hole 1111 is connected to the soft water outlet 114, so that the water in the sub-chamber 112 can flow along the sub-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 sub-chamber 112 are the same water, and through the coordinated control of the main valve assembly 120 and the sub-valve assembly 130, the water in the sub-chamber 112 can be usable water when the soft water valve is in the water production mode, water injection mode, salt absorption mode and cleaning mode. For example, in the water production mode and water injection mode, the water in the sub-chamber 112 is soft water, and in the salt absorption mode, the water in the sub-chamber 112 is raw water, so that the user has water available in any mode.

[0152] Exemplarily, 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 .

[0153] 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.

[0154] 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 .

[0155] It can be understood that the soft water channel can be connected to the sub-cavity 112 through the water outlet channel 1112 , so that the water in the sub-cavity 112 can flow along the water outlet channel 1112 and the soft water channel to the soft water outlet 114 .

[0156] Exemplarily, 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.

[0157] Among them, the valve housing 110 is constructed with a raw water channel, one end of which is formed with a raw water inlet 113, and the other 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 the raw water can flow into at least one of the main chamber 111 and the auxiliary chamber 112.

[0158] It can be understood that the main valve assembly 120 is located at the other 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 other end of the raw water channel with the main chamber 111, and the other is used to connect the other end of the raw water channel with 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.

[0159] The valve housing 110 is configured with a communication channel 1113, the outlet of the communication channel 1113 is in communication with the secondary chamber 112, and the inlet of the communication channel 1113 can be adjusted to be on and off with the raw water inlet 113, that is, the inlet of the communication channel 1113 can be in communication with the raw water inlet 113, or can be disconnected from the raw water inlet 113. When the inlet of the communication channel 1113 is in communication with the raw water inlet 113, raw water enters the valve housing 110 through the raw water inlet 113, and then the raw water 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, it means that the raw water cannot flow directly to the secondary chamber 112.

[0160] Exemplarily, the inlet of the connecting channel 1113 is connected and disconnected to 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.

[0161] 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. At this time, the communication channel 1113 and the raw water inlet 113 can be normally connected 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 with the raw water inlet 113, the main valve assembly 120 regulates 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 with the raw water inlet 113, or the main valve assembly 120 makes the raw water inlet 113 connect with the main chamber 111 and the secondary chamber 112 at the same time.

[0162] refer to Figure 2 and Figure 3As shown, the entrance of the connecting channel 1113 is located at the bottom of the main chamber 111, and 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, and it will not affect the regeneration of the softening material. The outlet of the connecting channel 1113 is connected to the auxiliary chamber 112, and the auxiliary chamber water inlet hole is opened on the side wall of the auxiliary chamber 112. The outlet of the connecting channel 1113 is the auxiliary chamber water inlet hole, so that a channel connecting the two chambers is formed.

[0163] The outlet end of the connecting channel 1113 is connected to the secondary connecting port of the secondary chamber 112, and the inlet end of the connecting channel 1113 is connected to the main connecting port of the main chamber 111. The main connecting port is connected to 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 connecting port and a state in which the raw water inlet 113 is disconnected from the main connecting port, that is, the main valve core 124 can control the connection and disconnection between the raw water inlet 113 and the connecting channel 1113, and the connecting channel 1113 can be connected to the secondary chamber 112 through the secondary connecting 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.

[0164] Among them, the secondary connecting port can be connected to the raw water inlet 113 through the secondary valve core 134, so that the soft water valve can switch between the state where the raw water inlet 113 is connected to the secondary connecting port and the state where the raw water inlet 113 is disconnected from the secondary connecting port, that is, the connection between the raw water inlet 113 and the secondary chamber 112 can be controlled.

[0165] The outlet of the communication channel 1113 is formed on the wall surface of the sub-cavity 112, and the outlet of the communication channel 1113 and the sub-cavity communication hole 1111 are located on the same side of the sub-valve core 134. When the communication channel 1113 is connected with the raw water inlet 113, the raw water can flow directly to the sub-cavity communication hole 1111 through the raw water inlet 113 and the communication channel 1113, and then flow to the soft water outlet 114 through the sub-cavity communication hole 1111 without passing through the sub-valve core 134, thereby simplifying the structure of the sub-valve core 134.

[0166] 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 separate the outlet of the connecting channel 1113 and the soft water inlet 119.

[0167] 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.

[0168] The outlet of the connecting channel 1113 is higher than the auxiliary chamber connecting hole 1111, so that when the raw water flows to the auxiliary chamber connecting hole 1111 through the connecting channel 1113, all the raw water can flow to the soft water outlet 114 through the auxiliary chamber connecting hole 1111, thereby avoiding the problem of water accumulation in the auxiliary chamber 112 caused by the outlet of the connecting channel 1113 being lower than the auxiliary chamber connecting hole 1111.

[0169] Based on the state that the soft water valve is in communication with the secondary chamber 112 and the raw water inlet 113, the secondary valve water inlet 1314 is correspondingly communicated with the secondary communication port. The secondary valve water inlet 1314 is communicated with the secondary chamber 112, and when the raw water flows into the secondary chamber 112 through the raw water inlet 113 and the secondary communication port, the raw water can flow directly into the secondary chamber 112, and the secondary movable valve plate will not block the raw water from flowing into the secondary chamber 112, so that the raw water can flow smoothly into the secondary chamber 112.

[0170] The various functional modes of the soft water valve are described below in conjunction with the structure of the valve housing described above.

[0171] Combination Figures 1 to 42 As shown, the raw water inlet 113 is always connected to the main chamber 111, the raw water outlet 118 and the main chamber 111 are on and off regulated by the main valve core 124, the soft water inlet 119 and the soft water outlet 114 are always connected, and the soft water outlet 114 and the auxiliary chamber 112 can be on and off regulated by the auxiliary valve core 134.

[0172] Combination Fig.45 and Fig.46 As shown, the raw water outlet 118 is always connected to the main chamber 111, the raw water inlet 113 and the main chamber 111 are on and off regulated by the main valve core 124, the soft water outlet 114 and the auxiliary chamber 112 are always connected, and the soft water inlet 119 and the auxiliary chamber 112 can be on and off regulated by the auxiliary valve core 134.

[0173] Based on the above, the functional modes of the soft water valve include water production mode, water injection mode, salt absorption mode and cleaning mode. The following describes each functional mode.

[0174] refer to Fig.16 As shown, in the water production mode, the raw water inlet 113 is connected to the raw water outlet 118 through the main valve core 124, and the soft water inlet 119 is connected to the soft water outlet 114, so that the raw water inlet 113, the main chamber 111, the raw water outlet 118, the soft water inlet 119 and the soft water outlet 114 form a communication flow path. The raw water inlet 113 is connected to the softening device 190 through the main valve core 124, and the softening device 190 is connected to the soft water outlet 114 through the auxiliary valve core 134, so as to realize the soft water outlet.

[0175] Corresponding to the above-mentioned embodiment, reference Figures 1 to 42 As shown, the soft water inlet 119 is always connected to the soft water outlet 114, or, Figures 45 to 60 As shown, the soft water inlet 119 is communicated with the soft water outlet 114 via the auxiliary valve core 134 .

[0176] refer to Fig.19 As shown, in the water injection mode, the raw water inlet 113 is connected to the raw water outlet 118 through the main valve core 124, and the soft water inlet 119 is connected to the salt tank connection port 1110 of the valve housing 110 through the auxiliary valve core 134, so that the raw water inlet 113, the main chamber 111, the raw water outlet 118, the soft water inlet 119, the auxiliary chamber 112 and the salt tank connection port 1110 form a connecting flow path. The raw water can be passed into the softening device 190, and the soft water can be passed into the salt tank 200 through the auxiliary valve core 134.

[0177] If the auxiliary chamber 112 is always connected to the soft water outlet 114, soft water can be taken out through the soft water outlet 114 in the water injection mode. If the auxiliary chamber 112 is disconnected from the soft water outlet 114 in the water injection mode, water cannot be taken out from the soft water outlet 114 in the water injection mode.

[0178] refer to Fig. 22 As shown, in the salt absorption mode, the raw water inlet 113 is connected with the auxiliary chamber 112, the auxiliary chamber 112 is connected with the salt box connection port 1110 of the valve housing 110 through the auxiliary valve core 134, and the salt box connection port 1110 is connected with the soft water inlet 119 through the auxiliary valve core 134, so that the raw water inlet 113, the auxiliary chamber 112, the salt box connection port 1110 and the soft water inlet 119 are connected, and the salt water mixed solution is passed into the softening device 190, and the raw water outlet 118 is connected with the sewage outlet 115 of the valve housing 110 to discharge the solution in the softening device 190. The raw water is sent to the salt box connection port 1110 through the auxiliary chamber 112 and the auxiliary valve core 134, and the raw water provides a negative suction force to the salt solution in the salt box 200, so that the salt solution and the salt water mixed solution of the raw water are sent to the softening device 190, and the solution in the softening device 190 is sent out from the sewage outlet 115 through the main valve core 124, so as to realize the process of salt absorption and slow washing.

[0179] refer to Fig.25As shown, the cleaning mode includes a backwash mode. In the backwash mode, the raw water inlet 113 is connected to the sub-cavity 112, the sub-cavity 112 is connected to the soft water inlet 119 through the sub-valve core 134, and the raw water outlet 118 is connected to the sewage outlet 115 of the valve housing 110, so that the raw water inlet 113, the sub-cavity 112, the sub-valve core 134, the soft water inlet 119, the raw water outlet 118 and the sewage outlet 115 form a connecting flow path. The raw water of the raw water inlet 113 enters the sub-cavity 112 through at least one of the main cavity 111 and the main valve core 124, the sub-cavity 112 is connected to the softening device 190 through the sub-valve core 134, and the softening device 190 is connected to the sewage outlet 115 through the main valve core 124 to achieve sewage discharge.

[0180] In the above-mentioned salt absorption mode and backwash mode, "the raw water inlet 113 is connected to the secondary chamber 112", which can be understood as the raw water inlet 113 and the secondary chamber 112 are always connected or can be adjusted on and off. When the raw water inlet 113 and the main chamber 111 are always connected, and a connecting channel 3111 is set between the main chamber 111 and the secondary chamber 112, the raw water inlet 113 and the secondary chamber 112 are always connected. When the raw water inlet 113 and the secondary chamber 112 can be adjusted on and off, it can be regulated by the main valve core 124, and the raw water inlet 113 is connected to the secondary chamber 112 through the flow channel in the main valve core 124, or, the raw water inlet 113 and the main chamber 111 can be opened and closed through the main valve core 124, and the main chamber 111 is connected to the secondary chamber 112.

[0181] refer to Fig.28 As shown, the cleaning mode includes a positive washing mode. In the positive washing mode, the raw water inlet 113 is connected to the raw water outlet 118 through the main valve core 124, and the soft water inlet 119 is connected to the sewage outlet 115 of the valve housing 110 through the auxiliary valve core 134, so that the raw water inlet 113, the main valve core 124, the raw water outlet 118, the soft water inlet 119, the auxiliary valve core 134 and the sewage outlet 115 form a connecting flow path. The raw water inlet 113 is connected to the softening device 190 through the main valve core 124, and the softening device 190 is connected to the sewage outlet 115 through the auxiliary valve core 134 to achieve sewage discharge. Fig.28 As shown, the softening device 190 is connected to the sewage outlet 115 through the auxiliary cavity 112, and the auxiliary cavity 112 is connected to the soft water outlet 114, so the soft water outlet 114 can take the water out of the softening device 190. In some cases, the auxiliary valve core 134 is disconnected from the soft water outlet 114, and water cannot be taken.

[0182] Below, in combination with the flow paths corresponding to each functional mode, based on the fact that "the raw water outlet 118 and the main chamber 111 are always connected, the raw water inlet 113 and the main chamber 111 are on and off regulated by the main valve core 124, the soft water outlet 114 and the auxiliary chamber 112 are always connected, and the soft water inlet 119 and the auxiliary chamber 112 can be on and off regulated by the auxiliary valve core 134", the structure and function of the main valve assembly 120 and the auxiliary valve assembly 130 are explained.

[0183] Below, in combination with the flow paths corresponding to each functional mode, the structure and function of the main valve assembly and the auxiliary valve assembly are explained based on the principle that "the raw water outlet and the main chamber are normally connected, the raw water inlet and the main chamber are on and off adjusted by the main valve core, the soft water outlet and the auxiliary chamber are normally connected, and the soft water inlet and the auxiliary chamber can be on and off adjusted by the auxiliary valve core."

[0184] 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 entrance of the connecting channel 1113 with the raw water inlet 113 and the first main valve position connecting the main cavity 111 with the raw water inlet 113 .

[0185] It can be understood that the main valve core 124 is driven by the main driving part 125 to switch between the first main valve position and the 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 and the raw water inlet 113, and at the same time, the main valve core 124 blocks the raw water inlet 113 and the inlet of the connecting channel 1113, so that the raw water flows into the main chamber 111. At this time, the soft water valve is in the water production mode, the water injection mode, or the forward washing mode. When the main valve core 124 is in the third main valve position, the main valve core 124 connects the inlet of the connecting channel 1113 and the raw water inlet 113, so that the raw water flows into the secondary chamber 112 through the raw water inlet 113 and the connecting channel 1113, and 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 the salt absorption mode or the backwash mode.

[0186] That is to say, when the cleaning mode includes the forward wash mode and the backwash mode, in the water production mode, the water injection mode and the forward wash 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 wash 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 to 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.

[0187] It should be noted that in the salt 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, so that the raw water inlet 113, the communication channel 1113 and the secondary chamber 112 are connected. The raw water can flow to the secondary chamber 112 through the raw water inlet 113 and the communication channel 1113, and then the switching of the soft water valve between the salt absorption mode and the backwash mode is realized by the flow path switching of the secondary valve assembly 130. However, no matter 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, so that in the salt 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 salt absorption mode and the backwash mode.

[0188] In the third main valve position, the main valve core 124 is driven by the main driving part 125, so that the communication channel 128 of the main valve core 124 is connected, and the inlet of the communication channel 1113 and the raw water inlet 113 are connected through the communication channel 128, so that the raw water inlet 113, the communication channel 128, the communication channel 1113 and the auxiliary chamber 112 are connected. The inlet of the communication channel 1113 and the raw water inlet 113 are connected through the communication channel 128, so that water can 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 via 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.

[0189] Exemplarily, the inlet of the connecting flow channel 128 is connected to the raw water inlet 113, the outlet of the connecting flow channel 128 is connected to the inlet of the connecting channel 1113, and the inlet of the connecting flow channel 128 is toward the side of the raw water inlet 113, that is, at this time the inlet of the connecting flow 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 flow channel 128, the connecting flow 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.

[0190] 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 connects the main valve water inlet hole 1221 and the main-sub connecting holes 1223, so that the main valve water inlet hole 1221, the first groove 1212 of the main valve and the main-sub 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 first groove 1212 of the main valve, the main-sub connecting holes 1223, the connecting channel 1113 and the sub-cavity 112.

[0191] In the salt absorption mode and the backwash mode, the main valve water inlet 1221 includes a first area and a second area that are connected, the first area is connected through the main valve first groove 1212 and the main and auxiliary connecting holes 1223, and the second area is closed by the main valve process groove of the active valve plate 121. The raw water flows to the auxiliary chamber through the first area, the main valve first groove 1212 and the main and auxiliary connecting holes 1223.

[0192] 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.

[0193] refer to Figure 7 , Figure 8 , Fig.36 and Fig.40 As shown, the main valve assembly 120 includes a main valve core 124 and a main driving part 125 for driving the main valve core 124 to move. The main valve core 124 is located in the main chamber 111. The main chamber 111 and the raw water inlet 113 can be switched on and off through the main valve core 124, so that the main chamber 111 and the raw water inlet 113 can be switched between connected and disconnected.

[0194] In some cases, the secondary chamber 112 and the raw water inlet 113 can be switched on and off by the main valve core 124, so that the secondary chamber 112 and the raw water inlet 113 can be switched between connected and disconnected. When the secondary chamber 112 is connected to the raw water inlet 113, the raw water enters the secondary chamber 112, and then the flow direction of the water is distributed through the secondary valve assembly 130. When the secondary chamber 112 is disconnected from the raw water inlet 113, the raw water flows into the main chamber 111 through the main valve core 124, and then the water flows to the soft water inlet 119 through the raw water outlet 118, and then the flow direction of the water is controlled by the cooperation of the secondary valve assembly 130 and the secondary chamber 112.

[0195] 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. The on-off of the soft water inlet 119 and the corresponding channel in the auxiliary valve core 134 can be adjusted, and the on-off of the auxiliary chamber 112 and the corresponding channel in the auxiliary valve core 134 can also be adjusted. 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 box 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.

[0196] 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.

[0197] The main chamber 111 cooperates with the main valve assembly 120 to mainly deliver water to the softening device 190. The main chamber 111 and the main valve assembly 120 are mainly used for normal water production. Since the normal water production flow is relatively large, the large opening structure of the main chamber 111 and the main valve core 124 is used to produce water. At this time, the auxiliary valve core 134 is used to connect the soft water inlet 119 and the auxiliary chamber 112. The auxiliary chamber 112 and the auxiliary valve assembly 130 cooperate to mainly deliver the soft water of the softening device 190 to the auxiliary chamber 112, which is used for various modes requiring soft water. The large opening structure of the auxiliary chamber 112 and the auxiliary valve core 134 is for users to take water. Since the water softener has other functions, such as forward washing, backwashing, water injection, salt absorption slow washing, etc., these states have relatively small flow requirements, so the opening area of ​​the hole for water injection and salt absorption in the auxiliary valve core 134 can be smaller than the opening area of ​​the hole for water inlet, so these states are mainly controlled by the auxiliary chamber 112 and the auxiliary valve assembly 130, and the main chamber 111 and the main valve assembly 120 play auxiliary functions. The auxiliary chamber 112 and the auxiliary valve assembly 130 are mainly used for the regulation of other flow paths, the main chamber 111 cooperates with the main valve assembly 120 to increase the flow rate of water delivered to the softening device 190, and the auxiliary chamber 112 cooperates with the main chamber 111 to perform other functions.

[0198] The main function of the main chamber 111 and the main valve assembly 120 is to produce water normally. Since the raw water flow demand in the water production mode is relatively large, 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 main chamber 111 is connected to the raw water outlet 118, and the large opening structure of the main valve core 124 is used to produce water. In the water production mode, the auxiliary valve core 134 forms an auxiliary water production channel 136, and the soft water inlet 119 is connected to the auxiliary chamber 112 through the auxiliary water production channel 136, and the soft water outlet 114 is connected to the auxiliary chamber 112, and the large opening structure of the auxiliary valve core 134 is used to take water.

[0199] Since the water softener has other functions, such as cleaning, water injection, salt absorption and slow washing, etc., these states have relatively small requirements for the flow rate of raw water, so the auxiliary valve core 134 can form multiple flow channels, and the flow channel formed by the auxiliary valve core 134 requires a smaller flow area. These states are mainly controlled by the auxiliary chamber 112 and the auxiliary valve assembly 130, and the main chamber 111 and the main valve assembly 120 cooperate with these regeneration processes to discharge sewage. In some cases, the main chamber 111 and the auxiliary chamber 112 have the same shape, the main valve assembly 120 and the auxiliary valve assembly 130 have the same outer contour size, and the flow area of ​​the flow channel formed by the auxiliary chamber 112 and the auxiliary valve assembly 130 is smaller than the flow area of ​​the main water flow channel 126 formed by the main chamber 111 and the main valve assembly 120.

[0200] As mentioned above, at least one of the main chamber 111 and the secondary chamber 112 can be communicated with the raw water inlet 113. It can be understood that 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, wherein at least one of the main chamber 111 and the secondary chamber 112 can be communicated with 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 communicated with the raw water inlet 113, the main chamber 111 and the secondary chamber 112 can be communicated with the raw water inlet 113 through an independent channel, and it is also possible that one of the main chamber 111 and the secondary chamber 112 is communicated with the raw water inlet 113 through a channel, and the main chamber 111 and the secondary chamber 112 are communicated through a connecting channel 1113.

[0201] The water softener valve of the embodiment of the present invention has a multifunctional two-chamber structure design, which can meet the use 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, that is, the water making mode, the cleaning mode (including at least one of forward cleaning and backwashing), the water injection mode, the salt absorption slow cleaning mode (hereinafter referred to as the salt absorption mode) and other water path function requirements of multiple states are realized. The entire valve head structure is compact and simple, the reliability is high, and the operation is stable.

[0202] refer to Figures 1 to 6 as well as Figures 40 to 42 As shown, the valve housing 110 of the soft water valve is also provided with a sewage outlet 115 and a salt box connection port 1110. The sewage outlet 115 is used to discharge sewage. The sewage outlet 115 can be connected to the flow channel of at least one of the main chamber 111 and the sub-chamber 112 to achieve sewage discharge in different flow paths; the salt box connection port 1110 is used to connect with the salt box 200. The salt box connection port 1110 can inject water into the salt box 200. The salt box connection port 1110 can also extract salt water from the salt box 200 and send it to the soft water valve. The salt box connection port 1110 can have at least one function of water injection and salt absorption. One of the main valve assembly 120 and the sub-valve assembly 130 can be used to open and close the salt box connection port 1110 to achieve the opening and closing of the soft water valve and the salt box 200.

[0203] The valve housing 110 is formed with a drain channel 1114, which can be connected to at least one of the main chamber 111 and the auxiliary chamber 112 to achieve drainage of different flow paths. Exemplarily, one end of the drain channel 1114 is connected to at least one of the main chamber 111 and the auxiliary chamber 112, and the other end of the drain channel 1114 forms a drain port 115, so that the sewage in the valve housing 110 can be discharged through the drain channel 1114 and the drain port 115.

[0204] In some cases, reference Figure 7 and Figure 8 As shown, 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 regulation of multiple flow paths can be achieved.

[0205] 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), and the secondary valve positions are mainly used for cleaning and coordinating with the water injection and salt absorption modes. The structures of the main valve assembly 120 and the auxiliary valve assembly 130 are various, and the functions and structures of the main valve assembly 120 and the auxiliary valve assembly 130 can be set according to needs.

[0206] In some cases, reference Figure 7 , Figure 8and Fig.40 As shown, the main driving part 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 part 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.

[0207] At least one of the main valve assembly 120 and the auxiliary valve assembly 130 is a disc valve. The disc valve has a simple structure. The valve disc of the main valve core 124 and the valve disc of the auxiliary valve core 134 can both be made of ceramic discs. Figure 7 As shown, when the main valve assembly 120 is a disc valve, 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 chamber 111, and the main driving part 125 is connected to the active valve plate 121. The main driving part 125 is used to drive the active valve plate 121 to rotate relative to the main static valve plate 122, so as to adjust the flow channel corresponding to the main valve assembly 120. And / or, refer to Figure 8 As shown, 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 movable valve plate 131, the auxiliary static valve plate 132 is fixed in the auxiliary chamber 112, and the auxiliary driving part 135 is connected to the auxiliary movable valve plate 131. The auxiliary driving part 135 is used to drive the auxiliary movable valve plate 131 to rotate relative to the auxiliary static valve plate 132, so as to adjust the flow channel corresponding to the auxiliary valve assembly 130.

[0208] Among them, when the disc valve is a ceramic disc, the disc valve has a higher life and reliability due to its good wear resistance. Compared with the plunger valve, which has a higher structural processing precision, the disc valve has a lower production cost, which is an important development direction for soft water valves.

[0209] Exemplarily, the active valve disc 121 is provided with at least one notch structure 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 active valve disc 121 can be driven to rotate by the main driving part 125, so that the active valve disc 121 and the main static valve disc 122 form different flow channels.

[0210] Exemplarily, on the side where the active valve disc 121 contacts the main static valve disc 122, the active valve disc 121 is distributed in a large fan shape, with a large main valve water inlet 1211 on the side, and the main valve water inlet 1211 is also distributed in a fan shape, and the main static valve disc 122 is provided with a main valve water inlet hole 1221, and the water in the raw water inlet 113 can enter the main cavity 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. At the same time, the active valve disc 121 is also designed with two slots, and 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 and the main cavity 111, so as to realize the connection or disconnection of the corresponding flow channel. The flow area of ​​the main valve water inlet hole 1221 and the main valve water inlet port 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 rate.

[0211] In some cases, when the sub-cavity 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-sub-connecting hole 1223, and the main-sub-connecting hole 1223 is connected to the sub-cavity 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-sub-connecting hole 1223 with the main valve water inlet hole 1221, so as to form a connecting flow channel 128.

[0212] refer to Figures 16 to 30 As shown, in some cases, the main valve core 124 has a flow channel structure such as a main water control channel 126, a connecting flow channel 128 and a first sewage discharge channel 127, wherein 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 control 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 control mode, the water injection 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 1211 of the active valve plate 121 and the main valve water inlet hole 1221 of the main static valve plate 122 through the active valve plate 121. The main valve first groove 1212 of the valve plate 121 and the main and auxiliary connecting holes 1223 of the main static valve plate 122 are connected to form a connecting 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 a salt absorption mode or a backwash mode; the main valve drain hole 1222 of the main static valve plate 122 is connected to the main valve water inlet 1211 of the active valve plate 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 a salt absorption mode or a backwash mode.

[0213] Exemplarily, the auxiliary valve core 134 has at least one flow channel, the auxiliary movable valve disc 131 is provided with 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.

[0214] In some cases, the auxiliary valve core 134 has an auxiliary water control flow channel 136, a water injection flow channel 137, a forward wash 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 control flow channel 136, at which time the auxiliary valve core 134 is in the first auxiliary valve position, and the soft water valve is in the water control mode; the auxiliary static valve plate 132 is connected to the auxiliary valve water inlet 1314 of the auxiliary moving valve plate 131 to form the auxiliary water control flow channel 136. 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 A forward wash flow channel 138 is formed, such as 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 moving valve plate 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 plate 132 is connected to the auxiliary valve water inlet 1314 of the auxiliary moving valve plate 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 backwash mode. Washing mode; the auxiliary valve water inlet 1314 of the auxiliary moving valve plate 131 and the salt absorption water injection hole 1324 of the auxiliary static valve plate 132 are connected to form a first salt absorption channel 1341, and the brine hole 1323 of the auxiliary static valve plate 132 is connected through the auxiliary valve first groove 1311 of the auxiliary moving valve plate 131 and the softening connection hole 1322 of the auxiliary static valve plate 132 to form a second salt absorption channel 1342. At this time, the auxiliary valve core 134 is in the third auxiliary valve position, and the soft water valve is in the salt absorption mode.

[0215] 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 chamber 112 and the softening device 190 is the same, but the water flow direction is different.

[0216] 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.

[0217] In some cases, reference Fig.36As shown, the main driving part 125 includes a main valve motor and a main shaft assembly 1251. One end of the main shaft assembly 1251 is connected to the main valve motor, and the other 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.

[0218] In some cases, reference Fig.36 As shown, the auxiliary driving part 135 includes an auxiliary valve motor and an auxiliary shaft assembly 1351. One end of the auxiliary shaft assembly 1351 is connected to the auxiliary valve motor, and the other 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.

[0219] 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 main valve motor and auxiliary valve motor.

[0220] Below, reference Figures 9 to 30 As shown, when the soft water valve includes a valve housing 110, a main valve assembly 120 and a sub-valve assembly 130, the main valve assembly 120 cooperates with the sub-valve assembly 130 to achieve switching of multiple modes, which is described below.

[0221] About water production mode:

[0222] refer to Figures 9 to 14 , Figures 16 to 18 As shown, it can be understood that in the water production mode, the main water production channel 126 of the main valve core 124 is connected, the main water production channel 126 connects the main chamber 111 with the raw water inlet 113, the sub-chamber 112 is connected with the soft water inlet 119, and the raw water inlet 113, the main water production 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 are connected. The main chamber 111 and the main valve assembly 120 are mainly used to deliver water to the softening device 190 in the water production mode, which helps to increase the flow rate of the soft water valve to the softening device 190, thereby increasing the flow rate of soft water produced by the softening device 190, so that the user can use soft water.

[0223] In the water production mode, the main chamber 111 cooperates with the main valve assembly 120, so that the raw water inlet 113 is connected to the main chamber 111, and the sub-chamber 112 cooperates with the sub-valve assembly 130, so that the sub-chamber 112 is connected to 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, 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 outlet 114 is connected to the path where water flows, so that 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 sub-chamber 112 through the soft water inlet 119, and the soft water in the sub-chamber 112 is discharged through the soft water outlet 114. During this process, the sub-chamber 112 and the sub-valve assembly 130 are used to connect the soft water inlet 119 and the sub-chamber 112, so that the soft water can be discharged from the soft water inlet 119 to the sub-chamber 112, ensuring that the soft water is discharged from the sub-chamber 112 to the soft water outlet 114, which is convenient for users to take water.

[0224] The main driving part 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 control channel 126. It can be understood that the main water control channel 126 can be connected in some modes and disconnected in some modes.

[0225] Among them, reference Fig. 9 As shown, 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 driving part 125, the main static valve disc 122 is fixed to the valve housing 110, the main static valve disc 122 is configured with a main valve water inlet hole 1221, the active valve disc 121 is configured with a main valve water inlet port 1211, the main valve water inlet hole 1221 is connected to the raw water inlet 113, the main valve water inlet port 1211 is connected to the main cavity 111, and the main valve water inlet hole 1221 is connected to the main valve water inlet port 1211 to form a main water control channel 126. The main driving part 125 drives the active valve disc 121 to adjust its position relative to the main static valve disc 122, so as to realize the on-off adjustment of the main cavity 111 and the raw water inlet 113, and the structure is simple and the adjustment is easy.

[0226] It can be understood that, in the water production mode, the main driving part 125 drives the active valve plate 121 to move, so that the main valve water inlet 1211 and the main valve water inlet hole 1221 are connected to each other, that is, the main water control channel 126 formed by the main valve water inlet 1211 and the main valve water inlet hole 1221 are connected, and the water at the raw water inlet 113 can flow to the main cavity 111 through the main water control channel 126. In the partial non-water production mode, the main driving part 125 drives the active valve plate 121 to move, so that the main valve water inlet 1211 and the main valve water inlet hole 1221 are not connected to each other, that is, the main valve water inlet 1211 and the main valve water inlet hole 1221 are disconnected, the main water control channel 126 is disconnected, the raw water inlet 113 cannot be connected to the main cavity 111, and the water at the raw water inlet 113 cannot flow to the main cavity 111.

[0227] It can be understood that when the soft water valve switches from other modes to the 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.

[0228] When the main driving part 125 is used to drive the active valve disc 121 to rotate, the active valve disc 121 can rotate until the main valve water inlet 1211 is connected or disconnected with the main valve water inlet hole 1221. The main valve water inlet hole 1221 can be a fan-shaped hole, and 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 ​​the raw water.

[0229] The above content describes the main valve assembly 120 , the main chamber 111 and the valve housing 110 in the water production mode.

[0230] The water production mode is the main function mode of the water softener. The other function modes of the water softener (water injection mode, salt absorption mode, cleaning mode) are mainly to ensure the softening effect of the softening device 190 and regenerate the softening material in the softening device 190 to continuously provide soft water. Among them, the water injection mode mainly injects water into the salt tank 200 to melt the salt in the salt tank 200 and use it to regenerate the softening material in the softening device 190.

[0231] Next, the sub-valve assembly 130 , the sub-chamber 112 and the valve housing 110 in the water production mode will be described.

[0232] In the water production mode, the auxiliary water control flow channel 136 of the auxiliary valve core 134 is connected, and the auxiliary water control flow channel 136 is connected to the soft water inlet 119 and the auxiliary chamber 112, so that 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 are connected. It can be understood that in the water production mode, the auxiliary valve core 134 can be 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 known 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 channel 136, so the soft water inlet 119, the auxiliary water control 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 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.

[0233] It can be understood that 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 the water at the soft water inlet 119 can flow into the auxiliary cavity 112.

[0234] It is understandable that 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 .

[0235] Among them, the auxiliary valve core 134 includes an auxiliary static valve plate 132 and an auxiliary movable valve plate 131, the auxiliary movable valve plate 131 is connected to the auxiliary driving 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 movable 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 auxiliary cavity 112, and the softening connecting hole 1322 is connected to the auxiliary valve water inlet 1314 to form an auxiliary water control channel 136.

[0236] It can be understood that in the water production mode, the auxiliary driving part 135 drives the auxiliary movable valve disc 131 to rotate, so that the relative position between the auxiliary movable valve disc 131 and the auxiliary static valve disc 132 changes, and 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 with the auxiliary cavity 112 through the auxiliary water control flow channel 136, so that the water at the soft water inlet 119 can flow into the auxiliary cavity 112. In some non-water production modes, such as the salt absorption mode, the auxiliary driving part 135 drives the auxiliary movable valve disc 131 to rotate, so that the auxiliary movable valve disc 131 rotates relative to the auxiliary static valve disc 132, so that 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 with the auxiliary cavity 112 through the auxiliary water control flow channel 136, so that the soft water valve can realize other operation modes.

[0237] It can be understood that in the water production mode, the auxiliary driving 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 chamber 112 can be connected through the auxiliary water production channel 136.

[0238] In some cases, the auxiliary chamber 112 and the soft water inlet 119 can be always 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. About water injection mode:

[0239] refer to Figures 9 to 14 , Figures 19 to 21 as well as Figures 36 to 39 It is understandable that the valve housing 110 is provided with a salt box connection port 1110 for connecting to the salt box 200. In the water injection mode, the water injection channel 137 of the auxiliary valve core 134 communicates the soft water inlet 119 with the salt box connection port 1110, so that the soft water inlet 119, the water injection channel 137 and the salt box connection port 1110 are in communication. By adjusting the state of the auxiliary valve assembly 130, the softening device 190 is in communication with the salt box 200, and the soft water softened by the softening device 190 is transported to the salt box 200, so that the salt in the salt box 200 is dissolved, so that the salt solution is passed into the softening device 190.

[0240] 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 connects the salt absorption water injection hole 1324 and 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 chamber 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 on the salt box 200.

[0241] It should be noted that the way water flows from the soft water inlet 119 to the salt box connecting 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 by the softening device 190 and then transported to the soft water outlet 114, and the soft water is then transported from the soft water outlet 114 to the salt box connecting port 1110, thereby realizing the operation of injecting soft water into the salt box 200.

[0242] The way water flows from the auxiliary chamber 112 to the salt box connecting 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 box connecting port 1110 can be connected through the auxiliary valve core 134, thereby realizing the operation of injecting raw water into the salt box 200.

[0243] 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 sub-cavity 112, that is, the soft water inlet 119, the sub-cavity 112 and the water injection channel 137 are connected.

[0244] That is, the soft water inlet 119 is connected with the water injection channel 137 through the auxiliary chamber 112, so that the soft water inlet 119, the auxiliary chamber 112 and the water injection channel 137 are connected, so that the water at the soft water inlet 119 can flow into the water injection channel 137 after passing through the auxiliary chamber 112, and part of the water at the soft water inlet 119 can flow into the water injection channel 137, and the other part can flow into the auxiliary chamber 112. In other words, it can be 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 the user still has water available in the water injection mode, and the water flowing into the auxiliary chamber 112 at this time is soft water processed by the softening device 190, that is, the user still has soft water available in the water injection mode.

[0245] It can be understood that, 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 cooperation of 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.

[0246] In the case where the main valve core 124 is provided with a main water control flow channel 126, the main water control 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 control mode. Fig. 20 As shown, it will not be repeated here. It can be understood that the difference between the water injection mode and the water production mode is that the state of the auxiliary valve assembly 130 is different. The soft water valve switches between the water injection mode and the water production mode, and the main valve core 124 is located at the first main valve position. The switching of 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 understood as the first auxiliary valve position. In the water injection mode, the position of the auxiliary valve core 134 can be understood as the second auxiliary valve position. The auxiliary valve core 134 is driven to rotate by the auxiliary drive unit 135, 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.

[0247] 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 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 salt tank connection port 1110. The softening connection hole 1322 and the salt absorption water injection hole 1324 are connected 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, and smoothly deliver the soft water in the softening device 190 to the salt tank 200. The structure is simple.

[0248] Specifically, in the water injection mode, the auxiliary driving part 135 drives the auxiliary moving valve disc 131 to rotate to the second auxiliary valve position, so that the relative position of the auxiliary moving valve disc 131 and the auxiliary static valve disc 132 changes, the softening connection hole 1322 and the salt absorption water injection hole 1324 are connected to form the water injection channel 137, and the soft water inlet 119 is connected to the salt box connection port 1110 through the water injection channel 137, so that the water at the soft water inlet 119 can be transported to the salt box connection port 1110 through the water injection channel 137. In the partial non-water injection mode, the auxiliary driving part 135 drives the auxiliary moving 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 box connection port 1110 through the water injection channel 137, and the water at the soft water inlet 119 cannot flow to the salt box connection port 1110, so that the soft water valve can operate in different modes.

[0249] Among them, the auxiliary valve core 134 includes an auxiliary static valve plate 132 and an auxiliary moving valve plate 131, the auxiliary moving valve plate 131 is connected to the auxiliary driving 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 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 moving valve plate 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 is connected to the salt absorption water injection hole 1324 through the auxiliary valve water inlet 1314 to form a water injection channel 137.

[0250] It can be understood that by driving the auxiliary valve plate 131 to rotate through the auxiliary driving part 135, 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 box connection port 1110, but also connect the soft water inlet 119 and the auxiliary chamber 112, so that the soft water at the soft water inlet 119 can flow to the salt box connection port 1110, and can also flow to the soft water outlet 114 after passing through the auxiliary chamber 112.

[0251] Among them, when the soft water valve includes an ejector 160, the salt absorption water injection hole 1324 is connected to the salt box connection port 1110 through the ejector 160, that is, the water injection channel 137 is connected to the salt box 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 box 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 box 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 from the auxiliary chamber 112 to the ejector 160, and then flows into the salt box connection port 1110 through the ejector 160; in the salt absorption mode, the raw water in the auxiliary chamber 112 entering the ejector 160 drives the salt solution in the salt box 200 to enter the ejector 160, and then the mixed solution in the ejector 160 is sent to the softening device 190 through the auxiliary valve assembly 130; it should be noted that the flow channels connected in the auxiliary valve assembly 130 in the water injection mode and the salt absorption mode are different. Of course, in the water injection mode, the water flowing to the salt box connection port 1110 through the water injection channel 137 of the auxiliary valve assembly 130 can also flow directly into the salt box connection port 1110 without passing through the ejector 160. At this time, the salt absorption water injection hole 1324 can be directly connected to the salt box connection port 1110.

[0252] In the above embodiment, in the water injection mode, the path of the raw water inlet 113 to pass water to the auxiliary valve assembly 130 is the same as that in the water production mode, that is, the softening device 190 is controlled by the soft water valve to deliver soft water to the salt box connection port 1110. However, the water injection mode can also introduce raw water into the salt box connection port 1110 in other ways. In some cases, in the water injection mode, the main chamber 111 may not participate in the work, and 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 regulated to make the auxiliary chamber 112 communicate with the salt box connection port 1110, or the soft water outlet 114 is connected to the salt box connection port 1110 by other means, and the raw water is passed into the salt box 200 through the salt box connection port 1110 (not shown in the figure), so that the salt in the salt box 200 is dissolved, so that the salt water is passed into the softening device 190. For example, the sub-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 sub-chamber 112 and the salt box connection port 1110. The raw water in the sub-chamber 112 can be sent to the salt box 200, and can also be dissolved in the salt box 200 to obtain brine. At this time, the sub-valve water inlet 1314 of the sub-valve plate 131 is connected to the salt absorption water injection hole 1324, and the raw water in the sub-chamber 112 flows along the direction of the sub-valve water inlet 1314, the salt absorption water injection hole 1324 and the salt box 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.

[0253] The above content describes the water injection mode. After the water is injected into the salt box 200, the salt in the salt box 200 is dissolved for a preset time, which can generally be 1 hour, 2 hours, etc. This process can be understood as the salt box 200 entering the salt melting state. During the salt melting state, the water production mode can be executed so that the user can get soft water from the soft water outlet 114. After the salt in the salt box 200 is dissolved, the salt water is sent to the softening device 190, that is, the salt absorption mode is executed. The salt absorption mode is described below.

[0254] Salt absorption mode:

[0255] refer to Figures 9 to 14 , Figures 22 to 34 as well as Figures 36 to 39 As shown, it can be understood that the valve housing 110 is connected to the 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.

[0256] In salt absorption mode, combined with Figure 22 to Figure 24 as well as Figure 36 to Figure 39As shown, the valve housing 110 is connected to an ejector 160, the ejector 160 is provided with a jet flow channel, and the valve housing 110 is provided with a salt box 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 box 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 of the raw water inlet 113 can flow into the jet flow channel, and the raw water and the salt water of the salt box connection port 1110 are mixed in the jet flow channel to obtain a mixed liquid, and the mixed liquid is passed 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, and 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 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, and 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.

[0257] It can be understood that, in the salt absorption mode, the auxiliary valve core 134 is located at 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 with the raw water inlet 113, and the jet outlet 162 of the jet channel is connected with 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.

[0258] In some cases, the jet inlet 161 is connected to the sub-cavity 112 through the sub-valve core 134, and the sub-cavity 112 is connected to the raw water inlet 113, so that the jet inlet 161 is connected to the raw water inlet 113. The raw water flows from the raw water inlet 113 to the sub-cavity 112, and then flows from the sub-cavity 112 to the jet flow channel through the jet inlet 161, so that the jet inlet 161 is connected to the raw water inlet 113. Of course, the jet inlet 161 can also be connected to the raw water inlet 113 in other ways, for example, the jet inlet 161 is directly connected to the raw water inlet 113, or is connected to the raw water inlet 113 through other valve components, without passing through the sub-valve component 130.

[0259] It is understandable that 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 another portion of the raw water in the secondary chamber 112 will be discharged from the soft water outlet 114, so that the user still has water available when the soft water valve is in the salt absorption mode. And the mixed solution obtained after the salt solution and the raw water are mixed in the jet flow channel flows to the soft water inlet 119 through the jet outlet 162, while the soft water inlet 119 is disconnected from the secondary chamber 112 through the secondary valve assembly 130, that is, the soft water inlet 119 and the secondary chamber 112 are not connected, and 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 instead of salt water, and ensuring that the user has raw water available when the soft water valve is in the salt absorption mode.

[0260] In some cases, the auxiliary driving part 135 drives the auxiliary valve disc 131 to rotate, so that the auxiliary valve water inlet 1314 is staggered with the softening connection hole 1322, and the auxiliary valve disc 131 blocks the softening connection hole 1322 and the auxiliary cavity 112. In the salt absorption mode, the auxiliary valve water inlet 1314 is staggered with the softening connection hole 1322, that is, the soft water inlet 119 is separated from the auxiliary valve water inlet 1314, so that the soft water inlet 119 is separated from the auxiliary cavity 112, and the soft water inlet 119 and the auxiliary cavity 112 are blocked, so that the salt water at the soft water inlet 119 can be prevented from contaminating the water at the auxiliary cavity 112.

[0261] The first drain flow channel 127 of the main valve core 124 connects the raw water outlet 118 with the drain port 115 of the valve housing 110, so that the raw water of the raw water inlet 113 and the salt water of the salt tank connection port 1110 are mixed in the jet flow channel to obtain a mixed liquid, and the mixed liquid flows out along the jet flow channel, the soft water inlet 119, the raw water outlet 118, the first drain flow channel 127 and the drain port 115. The mixed liquid obtained by mixing the raw water and the salt water flows into the softening device 190 along the jet outlet 162 and the soft water inlet 119, and the mixed liquid regenerates the softening device 190 and is discharged from the raw water outlet 118. The raw water outlet 118 is connected to the drain port 115 of the valve housing 110 through the first drain flow channel 127, and the mixed liquid flows along the raw water outlet 118, the first drain flow channel 127 and the drain port 115 and is discharged from the valve housing 110.

[0262] In some cases, the raw water outlet 118 is connected to the first sewage flow channel 127 through the main cavity 111, that is, 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.

[0263] In some cases, the mixed solution at the jet outlet 162 is not limited to being drained to the soft water inlet 119, but can also be drained to the raw water outlet 118 through the cooperation of the auxiliary valve assembly 130 and the main valve assembly 120, so that the mixed solution flows into the softening device 190 along the raw water outlet 118, and the mixed solution washes the softened material in the softening device 190, and the washed sewage is drained to the sewage outlet 115 through the auxiliary valve assembly 130. There are various paths for feeding the mixed solution into the softening device 190 and discharging sewage from the softening device 190, which can be selected according to needs.

[0264] In which, 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, and the mixed liquid 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.

[0265] It should be noted that when the first salt absorption flow channel 1341 is connected to the sub-cavity 112 and the jet inlet 161, the sub-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 sub-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.

[0266] In some cases, the valve housing 110 is provided with a filter channel 1115, in which a filter element is provided, and 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 raw water is filtered and then used for regeneration of the softening material.

[0267] The filter element can be a filter screen, a filter element, a filter membrane, etc. 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 snap connection, a fastener connection, a threaded connection, etc. The fixing method of the filter element is various and can be selected according to needs. The filter element can be detachably connected in the filter channel 1115 for easy replacement.

[0268] The valve housing 110 is provided with an installation passage 1136, and the ejector 160 can be detachably installed in the installation passage 1136, so as to facilitate the disassembly and assembly of the ejector 160. Fig.35 and Fig.40 As shown, the valve housing 110 is integrally formed with an installation channel 1136, which is convenient for processing the valve housing 110 and can also simplify the structure of the soft water valve. Alternatively, the valve housing 110 is directly connected to the ejector 160 (not shown in the figure), and the ejector 160 does not need to be installed in the channel, and the ejector 160 is more independent. 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 fitting detachably connected to the valve housing 110, and this pipe fitting can be connected to the independent ejector 160 as a whole, reducing the number of parts. Based on the above, there are various ways to install the ejector 160 and the filter element in the valve housing 110, which can be selected according to needs, and will not be listed here one by one.

[0269] It should be noted that the reference Figure 36 to Figure 39 As shown, the ejector 160 can be a Venturi structure, the ejector 160 is arranged on the left side of the valve housing 110, and two channels are opened on the left side of the valve housing 110. The bottom channel is equipped with a filter channel 1115 of a filter element for filtering impurities to prevent the ejector 160 from being blocked, and an installation channel 1136 for installing the ejector 160 is arranged on the top. The side of the ejector 160 is equipped with a salt box connection port 1110 perpendicular to the water flow direction of the pipe. The salt box connection port 1110 can be connected to the salt box connection port 1110 through a hose to absorb salt during regeneration.

[0270] refer to Figure 36 to Figure 39 As shown, a first flow channel 164 and a second flow channel 165 are provided in the ejector 160, one end of the first flow channel 164 is connected to the suction port 163, and the other end of the first flow channel 164 forms a jet inlet 161, one end of the second flow channel 165 is connected to the suction port 163, and the other end of the second flow channel 165 forms a jet outlet 162. A jet flow limiter 166 is inserted at the end of the first flow channel 164 to adjust the flow rate of the ejector 160.

[0271] 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.

[0272] refer to Fig.24As shown, the auxiliary valve core 134 includes an auxiliary static valve plate 132 and an auxiliary movable valve plate 131, the auxiliary movable valve plate 131 is connected to the auxiliary driving part 135, the auxiliary static valve plate 132 is fixed to the valve housing 110, the auxiliary static valve plate 132 is configured with a salt absorption water injection hole 1324, a salt water hole 1323 and a softening connection hole 1322, the auxiliary movable valve plate 131 is configured with an auxiliary valve water inlet 1314 and an auxiliary valve first groove 1311, and the auxiliary valve water inlet 1314 is connected to the auxiliary driving part 135. The cavity 112 is connected, the salt absorption water injection hole 1324 is connected with the jet inlet 161, 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, the brine hole 1323 is connected with the jet outlet 162, the softening connection hole 1322 is connected with the soft water inlet 119, and the brine hole 1323 is connected with the softening connection hole 1322 through the auxiliary valve first groove 1311 to form a second salt absorption flow channel 1342.

[0273] It can be understood that 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, so that the first salt absorption flow channel 1341 can be connected to the auxiliary cavity 112 and the jet inlet 161, and the water in the auxiliary cavity 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 obtain the second salt absorption flow channel 1342, so that the second salt absorption flow channel 1342 can be connected to the jet outlet 162 and the soft water inlet 119, and the mixed liquid after the raw water and salt water in the jet flow channel are mixed can flow to the soft water inlet 119 through the second salt absorption flow channel 1342, and then the mixed liquid enters the softening device 190 from the soft water inlet 119, so as to realize the delivery of 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 connecting 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 connecting hole 1322. The mixed solution enters the softening device 190 through the softening connecting hole 1322, and the salt solution is transported according to the aforementioned path.

[0274] 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 .

[0275] In some cases, reference Fig.41 and Fig.42As shown, 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.

[0276] It can be understood that the outlet of the communication channel 1113 is connected to the secondary chamber 112, and the inlet of the communication channel 1113 can be adjusted on and off with the raw water inlet 113 through the main valve core 124. The main driving part 125 drives the main valve core 124, so that the main valve core 124 can be switched between the third main valve position connecting the communication channel 1113 with the raw water inlet 113 and the 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, so that the communication channel 1113 and the raw water inlet 113 can be adjusted on and off, and the secondary chamber 112 and the raw water inlet 113 can be adjusted on and off.

[0277] In the salt absorption mode, the communication channel 1113 is connected to the raw water inlet 113 through the main valve core 124, and the raw water flows into the sub-chamber 112 through the raw water inlet 113, the main valve core 124 and the communication channel 1113. Then a part of the water in the sub-chamber 112 flows to the soft water inlet 119 through the sub-valve core 134, and in the process of flowing to the soft water inlet 119, the raw water is mixed with the salt water in the salt tank 200, and the mixed solution of the raw water and the salt water flows to the soft water inlet 119 and enters the softening device 190 from the soft water inlet 119. Another part of the water in the sub-chamber 112 can flow to the soft water outlet 114, so that the user can still have water available in the salt absorption mode, and at this time, it is used to get raw water from the soft water outlet 114.

[0278] The above content describes the structure and state of the auxiliary valve assembly 130 in the salt absorption mode, that is, the path for the mixed solution to be transported to the softening device 190. The following describes the flow path of the sewage generated after the mixed solution regenerates the softening material in the softening device 190.

[0279] refer to Fig.23 As shown, 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 and 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.

[0280] It is understandable that 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 discharge channel 127 and the sewage discharge channel 1114 , so that the sewage can be discharged from the valve housing 110 .

[0281] It should be noted that the raw water outlet 118 can be directly connected to the first sewage discharge channel 127, or can be connected to the first sewage discharge channel 127 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, so that the sewage in the main chamber 111 will not be mixed with the raw water, which can prevent the raw water at the raw water inlet 113 from being polluted, and ensure that the raw water in the raw water inlet 113 flows into the auxiliary chamber 112 with raw water instead of sewage, and the auxiliary chamber 112 is connected with the soft water outlet 114, that is, the water used by the user is the water in the auxiliary chamber 112, which ensures that the user uses raw water instead of sewage when the soft water valve is in the salt absorption mode.

[0282] 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 the salt absorption mode and the backwash mode, and the two modes share a sewage discharge path, which can simplify the structure of the main valve core 124.

[0283] 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 driving part 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, 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, the main valve water inlet 1211 is connected to the raw water outlet 118, and the main valve water inlet 1211 and the main valve drain hole 1222 are connected to form a first drain flow channel 127. The main driving part 125 drives the main valve core 124 to be in the third main valve position, so that the main valve core 124 forms the first drain flow channel 127, and the raw water outlet 118 is connected to the drain channel 1114 through the first drain flow channel 127, so that the sewage in the valve housing 110 can be discharged.

[0284] It can be understood that 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.

[0285] 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.

[0286] In the following, when the valve housing 110 has a jet flow channel and other related structures, the water injection mode performed by the auxiliary valve core 134 is described.

[0287] In water injection mode, refer to Fig.21 As shown, 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.

[0288] It should be noted that, a path for delivering soft water into the salt box 200 is provided here, and a 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.

[0289] It can be understood that 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 box connection port 1110, so that water flows through the jet inlet 161 to the suction port 163, and then flows to the salt box connection port 1110.

[0290] Among them, the auxiliary valve core 134 includes an auxiliary static valve plate 132 and an auxiliary moving valve plate 131, the auxiliary moving valve plate 131 is connected to the auxiliary driving 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 a salt absorption water injection hole 1324, the auxiliary moving valve plate 131 is constructed with an auxiliary valve water inlet 1314, the salt absorption water injection hole 1324 is connected with the jet inlet 161, the softening connection hole 1322 is connected with 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 .

[0291] 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.

[0292] 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 salt box connection port 1110 through the suction port 163 .

[0293] 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 unit 135 is used to drive the auxiliary movable valve plate 131 to rotate relative to the auxiliary static valve plate 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.

[0294] The auxiliary driving part 135 is used to drive the auxiliary movable valve plate 131 to rotate relative to the auxiliary static valve plate 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 .

[0295] It can be understood that the auxiliary valve disc 131 is driven to rotate by the auxiliary driving part 135, so that the auxiliary valve core 134 switches between the second auxiliary valve position corresponding to the water injection mode and the 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, so that the soft water inlet 119 can be connected with the jet inlet 161 through the water injection channel 137, and the soft water at the soft water inlet 119 can flow into the jet channel through the water injection channel 137 and the jet inlet 161, and then flow to the salt box connection port 1110, so as to realize the water injection operation of the salt box 200. When the softening 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.

[0296] 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 driving part 125 drives the main valve core 124 to change between the first main valve position and the third main valve position to achieve the switching between the water injection mode and the salt absorption mode.

[0297] After the water injection mode and the salt absorption mode, the regeneration of the softening material in the softening device 190 is realized, 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.

[0298] The backwash mode is described below.

[0299] refer to Figures 9 to 14 as well as Figure 25 to Figure 27 As shown, 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.

[0300] It can be understood that the backwash flow channel connects the soft water inlet 119 and the raw water inlet 113, so that the raw water can flow along the raw water inlet 113 and the soft water inlet 119, and then flow into the softening device 190 from the soft water inlet 119, and flow out of the softening device 190 from the raw water outlet 118, thereby realizing the backwash operation of the softening device 190. Since the first sewage flow channel 127 connects the raw water outlet 118 and the sewage outlet 115 of the valve housing 110, the 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 realizing the sewage discharge of the soft water valve.

[0301] Among them, the auxiliary valve core 134 includes an auxiliary static valve plate 132 and an auxiliary moving valve plate 131, the auxiliary moving valve plate 131 is connected to the auxiliary driving 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 moving 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.

[0302] It can be understood that the auxiliary valve core 134 is driven to move to the first auxiliary valve position by the auxiliary drive unit 135, so that the auxiliary valve water inlet 1314 and the softening connecting 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.

[0303] 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.

[0304] In the backwash mode, the backwash channel is connected to the soft water inlet 119 and the auxiliary chamber 112, and the auxiliary chamber 112 is connected to the raw water inlet 113, so that the raw water inlet 113, the auxiliary chamber 112, the backwash channel and the soft water inlet 119 are connected. The 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 to the auxiliary chamber 112, part of the raw water flows along the path of the backwash channel and the soft water inlet 119, and the other part of the raw water flows to the soft water outlet 114, so that the user can obtain raw water at the soft water outlet 114, so that the user still has water available when the soft water valve is in the backwash state.

[0305] It should be noted that both the backwash mode and the salt absorption mode discharge water to the outside through the first sewage discharge 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.

[0306] It should be noted that in the salt absorption mode and the backwash mode, the path for the raw water to flow 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.

[0307] It can also be understood that in the backwash mode and the salt absorption mode, the state of the main valve assembly 120 is the same, and the water is drained to the outside of the soft water valve through the main valve assembly 120, but the drainage flow path is not limited to the aforementioned first sewage discharge channel 127, and can also be a structure not shown in the figure, such as the technical solution of "the main static valve plate 122 has two sewage discharge holes". For details, please refer to the above content, which will not be repeated here. That is, in the process of switching from the salt absorption mode to the backwash mode, the state of the auxiliary valve assembly 130 can be adjusted, and the state of the main valve assembly 120 can remain unchanged.

[0308] It should be noted that the state of the auxiliary valve assembly 130 can be the same in the backwash mode and the water production mode, and the auxiliary valve core 134 is used to connect the soft water inlet 119 and the auxiliary chamber 112. The switching of the soft water valve in the water production mode and the backwash mode can be achieved by switching the position of the main valve core 124. In the backwash mode, the auxiliary valve assembly 130 connects the soft water inlet 119 and the auxiliary chamber 112 so that the raw water in the auxiliary chamber 112 flows into the softening device 190 through the soft water inlet 119; in the water production mode, the auxiliary valve assembly 130 connects the soft water inlet 119 and the auxiliary chamber 112 so that the soft water at the soft water inlet 119 flows to the soft water outlet 114 through the auxiliary chamber 112. By sharing the auxiliary valve core 134 in the same state in the backwash mode and the water production mode, the structure of the auxiliary valve assembly 130 can be simplified.

[0309] The above content describes the backwash mode, and the forward wash mode will be described below.

[0310] refer to Figures 9 to 14 as well as Figures 28 to 30 As shown, the valve housing 110 is provided with a sewage outlet 115. In the forward washing mode, the auxiliary driving part 135 is used to drive the auxiliary valve core 134 to move to the forward washing flow channel 138 for communication, and the forward washing flow channel 138 communicates with the soft water inlet 119 and the sewage outlet 115. The auxiliary driving part 135 drives the auxiliary valve core 134 to move to the fourth auxiliary valve position, so that the forward washing flow channel 138 is communicated. At this time, the main water control flow channel 126 of the main valve core 124 communicates with the main cavity 111 and the raw water inlet 113, so that the raw water can flow along the path of the raw water inlet 113, the main cavity 111, the raw water outlet 118 and the soft water inlet 119, and the forward washing flow channel 138 communicates with the soft water inlet 119 and the sewage outlet 115, so that the water can flow along the path of the soft water inlet 119 and the sewage outlet 115, so that the sewage is discharged from the valve housing 110 in the forward washing mode.

[0311] It can be understood that the main valve core 124 is in the first main valve position, and the soft water valve is switched between the water production mode, the water injection mode and the forward washing mode by switching the position of the auxiliary valve core 134. When the main valve core 124 is in the water production mode, the water injection mode and the forward washing mode, it is in the first main valve position, that is, the state of the main valve core 124 is the same, and the path of water flowing from the raw water inlet 113 to the soft water inlet 119 is the same. At this time, the auxiliary driving unit 135 drives the auxiliary valve core 134 to switch the position accordingly, so that the soft water valve can be switched between the water production mode, the water injection mode and the forward washing mode, making the control of the soft water valve simpler and simplifying the structure of the soft water valve.

[0312] Among them, the auxiliary valve core 134 includes an auxiliary static valve plate 132 and an auxiliary moving valve plate 131, the auxiliary moving valve plate 131 is connected to the auxiliary driving 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.

[0313] It can be understood that the forward washing 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, so that the soft water inlet 119, the forward washing channel 138 and the drain outlet 115 are connected. In the forward washing mode, the raw water flows into the softening device 190 through the raw water inlet 113, the main cavity 111 and the raw water outlet 118, and the softening device 190 is forward washed. The sewage after washing the softening device 190 is discharged from the soft water outlet 114, and then the sewage flows along the path of the soft water inlet 119, the forward washing channel 138 and the drain outlet 115 and is discharged from the valve housing 110, realizing the sewage discharge in the forward washing mode.

[0314] The auxiliary valve disc 131 is constructed with an auxiliary valve water inlet 1314 , which is connected to the auxiliary cavity 112 , and 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 .

[0315] It can be understood that 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 port 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.

[0316] It should be noted that the water at the soft water inlet 119 can also flow into the sub-chamber 112 along the softening connecting hole 1322 and the auxiliary valve water inlet 1314, and then part of the water in the sub-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.

[0317] It should be noted that in the forward washing mode, the softening connection hole 1322 is connected to the auxiliary valve water inlet 1314. At this time, the softening connection hole 1322 and the auxiliary valve water inlet 1314 are used to form the forward washing flow channel 138 and the auxiliary water flow channel 136. That is, when the auxiliary valve core 134 is in the forward washing mode and the water making mode, the auxiliary valve core 134 plays the role of connecting the soft water inlet 119 and the auxiliary cavity 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 washing mode, the auxiliary valve drain hole 1321 of the auxiliary valve core 134 is also connected to the auxiliary valve water inlet 1314.

[0318] 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 with the raw water inlet 113, 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.

[0319] It can be understood that, when the main valve core 124 is provided with the main water control flow channel 126, in the normal wash mode, the raw water outlet 118 is connected to the raw water inlet 113 through the main water control flow channel 126. It can also be understood that the state of the main valve core 124 in the normal wash mode is the same as the state of the main valve core 124 in the water control mode, that is, the main valve core 124 is in the first main valve position, and when the main valve core 124 is in the first main valve position, the water control mode and the normal wash mode can be switched by adjusting the state of the auxiliary valve core 134.

[0320] The auxiliary driving part 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 driving part 135 can realize the state switching of the auxiliary valve core 134 by driving the auxiliary moving valve plate 131 to rotate relative to the auxiliary static valve plate 132, thereby realizing the functional mode switching of the soft water valve.

[0321] Among them, after the soft water valve executes the salt absorption mode, the softening device 190 needs to be cleaned, and the cleaning method of the softening device 190 can be at least one of the above-mentioned backwash mode and forward wash mode. When the cleaning mode includes the backwash mode or the forward wash mode, the softening device 190 can be cleaned by the backwash mode or the forward wash mode after the salt absorption mode is executed; when the cleaning mode includes the backwash mode and the forward wash mode, after the salt absorption mode ends, the backwash mode or the forward wash mode can be executed first, which can be selected according to needs. In some cases, after the salt absorption mode, the backwash mode is executed first, and then the forward wash mode is executed.

[0322] 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.

[0323] 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.

[0324] 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.

[0325] It can be understood that 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.

[0326] refer to Fig.17 , Fig. 20 , Fig.23 , Fig.26 and Fig.29As shown, 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.

[0327] In some cases, reference Fig.17 , Fig. 20 and Fig.29 As shown, 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 softening valve between the water production mode and the water injection mode is realized by switching the position of the auxiliary valve core 134.

[0328] When the cleaning mode includes the forward washing mode, the main valve core 124 is in the first main valve position, and the position of the auxiliary valve core 134 can be switched to switch the soft water valve to the forward washing mode. The structural form of the "main water flow channel 126" can refer to the above contents about the water production mode, water injection mode and forward washing 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.

[0329] In other cases, reference Fig.23 and Fig.26 As shown, the main valve core 124 is in the third main valve position, the first sewage discharge channel 127 of the main valve core 124 is connected, the main water control channel 126 is disconnected, and the first sewage discharge channel 127 is connected to the raw water outlet 118 and the sewage discharge channel 1114 of the valve housing 110, so that the sewage is discharged along the raw water outlet 118, the first sewage discharge channel 127 and the sewage discharge channel 1114. In the third main valve position, the main valve core 124 is used to guide the sewage in the softening device 190. In the mode where sewage needs to be discharged, the main valve core 124 can be switched to the third main valve position. At this time, the raw water can be transported to the auxiliary chamber 112 through the main valve core 124, and then the flow of water can be controlled by the auxiliary valve core 134 to realize operations such as sending water to the salt box 200 and sending water to the softening device 190.

[0330] When the cleaning mode includes the 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 realize the switching of the soft water valve between the salt absorption mode and the backwash mode. It can be understood that in both the salt absorption mode and the backwash mode, the main valve core 124 is used to transport the raw water to the auxiliary chamber 112, and the auxiliary valve core 134 transports the water in the auxiliary chamber 112 to the softening device 190, and the sewage in the softening device 190 is discharged through the main valve core 124. In these two modes, the flow channels connected by the auxiliary valve core 134 are different. Among them, in the salt absorption mode, the first salt absorption flow channel 1341 and the second salt absorption flow channel 1342 of the auxiliary valve core 134 are connected, and in the backwash mode, the backwash flow channel of the auxiliary valve core 134 is connected.

[0331] 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 sub-valve assembly 130 .

[0332] refer to Fig.18 As shown, 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, 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 paths to prevent water in other flow paths from contaminating the soft water.

[0333] refer to Fig.21 As shown, in the water injection mode, the auxiliary valve core 134 is in the second 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 pass the soft water in the softening device 190 into the salt tank connection port 1110. In the second auxiliary valve position, the water injection flow channel 137 of the auxiliary valve core 134 is connected, and the water injection flow channel 137 connects the soft water inlet 119 and the salt tank connection port 1110. In the second auxiliary valve position, the auxiliary valve core 134 also connects the soft water inlet 119 and the auxiliary chamber 112, so that the water at the soft water inlet 119 can flow into the auxiliary chamber 112, and then the water can flow from the auxiliary chamber 112 to the soft water outlet 114, ensuring that the user has water available in the water injection mode.

[0334] refer to Fig.24As shown, 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, the auxiliary valve core 134 is used to pass the raw water into the ejector 160, and driven by 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 sub-valve position, the first salt absorption channel 1341 and the second salt absorption channel 1342 of the sub-valve core 134 are connected, the jet inlet 161 of the jet channel is connected to the sub-cavity 112 through the first salt absorption channel 1341, the suction port 163 of the jet channel is connected to the salt box 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 sub-cavity 112, so that the raw water can flow into the sub-cavity 112. In addition to flowing into the ejector 160, the raw water in the sub-cavity 112 can also flow to the soft water outlet 114, so that the user has raw water available in the salt absorption mode, and the sub-valve core 134 is also used to separate the soft water inlet 119 and the sub-cavity 112, which can prevent the salt water at the soft water inlet 119 from polluting the raw water in the sub-cavity 112.

[0335] refer to Fig. 27 As shown, when the cleaning mode includes a backwash mode, in the backwash mode, the auxiliary valve core 134 is in the first auxiliary valve position, the main valve core 124 is in the third main valve position, and the auxiliary valve core 134 is used to pass the raw water into 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 first auxiliary valve position, the backwash flow channel of the auxiliary valve core 134 is connected, and the backwash flow channel connects the soft water inlet 119 and the auxiliary chamber 112. When the main valve core 124 is in the third 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 connects the raw water inlet 113 and the auxiliary chamber 112, so that the raw water can enter the auxiliary chamber 112, and then a part of the raw water flows from the auxiliary chamber 112 into the softening device 190, and the other part of the raw water flows to the soft water outlet 114, so that the user has water available during backwashing.

[0336] refer to Fig.30As shown, when the cleaning mode includes the forward washing mode, in the forward washing mode, the auxiliary valve core 134 is in the fourth auxiliary valve position, the main valve core 124 is in the first main valve position, the main valve core 124 is used to pass the raw water into the softening device 190, and the water in the softening device 190 is discharged along the valve housing 110 through the auxiliary valve core 134. In the third auxiliary valve position, the forward washing flow channel 138 of the auxiliary valve core 134 is connected, and the forward washing flow channel 138 connects the soft water inlet 119 and the sewage discharge channel 1114 of the valve housing 110. It should be noted that before the soft water valve is controlled to be in the forward washing mode, the soft water valve can be controlled to be in the backwash mode, that is, the soft water valve is cleaned first to reduce the salt content 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 salt content 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 comprehensive 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, thus ensuring that the user can use water in the forward wash mode.

[0337] When the soft water valve includes a water production mode, a water injection mode and a salt absorption mode, the auxiliary driving unit 135 is used to drive the auxiliary valve core 134 to rotate and switch between the first auxiliary valve position, the second auxiliary valve position and the third auxiliary valve position. The first auxiliary valve position, the second auxiliary valve position and the third auxiliary valve position are sequentially arranged along the circumference of the auxiliary valve core 134, so as to facilitate the position adjustment of the auxiliary valve core 134. The cleaning mode includes a forward washing mode, and the auxiliary driving unit 135 is used to drive the auxiliary valve core 134 to rotate and switch between the first auxiliary valve position, the second auxiliary valve position, the third auxiliary valve position and the fourth auxiliary valve position. The first auxiliary valve position, the second auxiliary valve position, the third auxiliary valve position and the fourth auxiliary valve position are sequentially arranged along the circumference of the auxiliary valve core 134.

[0338] Regarding the description of the status and functional modes of the soft water valve, the structure of each flow channel is not elaborated here and can be combined with the above description of each mode.

[0339] 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 box 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 a forward washing mode and a backwashing mode, the backwashing mode can be executed first, and then the forward washing mode is executed.

[0340] 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 needs to be executed, 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 box 200 needs to melt the salt for a preset time to obtain the 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 is adjusted to the third auxiliary valve position. Take the backwash mode as an example after the salt absorption mode. 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 washing 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 softening material. Finally, adjust the soft water valve to the water production mode to continue the water production function.

[0341] In some cases, reference Fig.44 As shown, the main valve core 124 also 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 secondary chamber 112, and controls the secondary drive unit 135 to drive the position switching of the secondary valve core 134. At this time, the water in the raw water inlet 113 will not enter the soft water valve, and the water will stop entering the main chamber 111, the secondary chamber 112, and the softening device 190. The flow pressure of the water on the secondary valve core 134 in the secondary chamber 112 becomes smaller, which can reduce the resistance of the water pressure to the position switching of the secondary valve core 134, making the position switching of the secondary valve core 134 more labor-saving, and can reduce the driving force provided by the secondary drive unit 135 to the secondary valve plate 131, which can reduce the power consumption and the loss of the secondary valve assembly 130, which helps to extend the life of the secondary valve assembly 130 and the life of the soft water valve.

[0342] The main valve core 124 is in the second main valve position, and the auxiliary driving unit 135 can be controlled to drive the auxiliary valve core 134 to switch between multiple auxiliary valve positions. Before the auxiliary valve core 134 needs to switch positions, the main valve core 124 is switched to the second main valve position, 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 and easy to operate.

[0343] It can be understood that 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 sub-valve core 134 is adjusted to the second sub-valve position. After the adjustment of the sub-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 sub-valve core 134 is returned to the first sub-valve position, and then the main valve core 124 is adjusted back to the first main valve position. At this time, the salt box 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 sub-valve core 134 is adjusted to the third sub-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 sub-valve core 134 is adjusted to the first sub-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 sub-valve core 134 is adjusted to the fourth sub-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.

[0344] 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.

[0345] Understandably, reference Figure 31 to Figure 34 as well as Fig.45 and Fig.46 As shown, the valve housing 110 is constructed 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, 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, and the raw water channel and the soft water channel are connected or disconnected through the bypass valve 140. When the bypass valve 140 connects the raw water channel and the soft water channel, under the water inlet pressure of the raw water inlet 113 of the raw water channel, the raw water in the raw water channel can flow to the soft water channel, so that the outlet water hardness of the soft water outlet 114 is adjusted by introducing raw water into the soft water channel.

[0346] A bypass valve 140 is connected between the raw water channel and the soft water channel. The bypass valve 140 can be installed flexibly, which helps to reduce the volume of the soft water valve. In some cases, when the soft water device does not produce 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.

[0347] The bypass valve 140 has various structures and can be selected according to needs. Fig.34 As shown, the bypass valve 140 may be a disc valve, which has a simple structure and is easy to assemble and disassemble.

[0348] refer to Fig.41 As shown, 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, and the bypass valve 140 core is used for adjusting the connection and disconnection of the first connecting port 1134 and the second connecting port 1135.

[0349] refer to Fig.34 As shown, 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 adjusting part and a second adjusting part. The shapes of the first adjusting part and the second adjusting part can be but are not limited to fan-shaped. The fan-shaped first adjusting part is taken as the first fan-shaped part and the fan-shaped second adjusting part is taken as the second fan-shaped part as an example for explanation. The first fan-shaped part 1411 and the second fan-shaped part 1412, the first fan-shaped part 1411 is used to open and close the first bypass opening 1421, the second fan-shaped part 1412 is used to open and close the second bypass opening 1422, the structure is simple and easy to process.

[0350] 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 bypass movable valve plate 141 rotates to switch the state of the bypass valve 140 .

[0351] refer to Fig.32 and Fig.33As shown, the valve housing 110 is provided with a bypass cavity, one form of which is: the valve housing 110 is formed with a bypass groove 1132, the bypass groove 1132 communicates with the first communication port 1134 and the 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 closed by a cover member 1133 to form the bypass cavity, the bypass cavity has a simple structure, and is convenient for molding the valve housing 110, and also convenient for disassembly and assembly of the bypass valve 140. The bypass static valve plate 142 is sealed and connected to the inner wall of the valve housing 110 through a bypass sealing ring 144.

[0352] refer to Fig.35 As shown, 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.

[0353] Next, the structure of the valve housing 110 will be described.

[0354] refer to Figures 1 to 6 , Figure 40 to Figure 42 As shown, 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 chamber 111 and a secondary chamber 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.

[0355] 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 .

[0356] The first shell portion 1140 and the second shell portion 1141 are arranged in parallel, the third shell portion 1142 is at one 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 shell 110 is more reasonable.

[0357] The valve housing 110 (such as 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 connected to the raw water inlet 113 through the main valve core 124, that is, it is possible to control whether the raw water inlet 113 is connected to the secondary chamber 112. The outlet of the communication channel 1113 is connected to the secondary chamber 112, and the inlet of the communication channel 1113 is connected to the raw water inlet 113 through the main valve core 124.

[0358] The valve housing 110 is provided with a softening connection port 1121, which corresponds to and communicates with the softening connection hole 1322 of the auxiliary static valve plate 132. The softening connection port 1121 can connect the softening connection hole 1322 with the soft water inlet 119. By switching the position of the auxiliary movable valve plate 131, the on-off adjustment of the softening device 190 and other flow paths can be realized. 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 adjacent to the auxiliary static valve plate 132, so that the softening connection hole 1322 and the softening connection port 1121 are directly correspondingly communicated. The auxiliary valve core 134 is located between the softening connection port 1121 and the auxiliary chamber 112, so that the auxiliary valve core 134 can control the communication between the softening connection port 1121 and the auxiliary chamber 112, that is, it can control the communication 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 connection with the softening connection port 1121, that is, the softening connection hole 1322 can maintain normal connection 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.

[0359] The third shell 1142 is also provided with a raw water outlet 118 and a soft water inlet 119. The third shell 1142 is provided with a softening connection portion 1143, and the softening connection portion 1143 is used to connect the softening device 190. The softening device 190 can be connected to the valve housing 110 by at least one of threaded connection, clamping, plug-in connection, fastener connection, etc. Figure 4 and Figure 5 As shown, the valve housing 110 is provided with an external thread, and the softening device 190 is provided with an internal thread. The softening device 190 is screwed and connected to the valve housing 110 via a threaded structure, so as to facilitate disassembly and assembly.

[0360] 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 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 is connected with the jet outlet 162 of the jet channel. By switching the position of the auxiliary movable valve plate 131, the on-off adjustment of the jet channel and other flow paths can be realized.

[0361] The auxiliary valve core 134 is located between the salt water injection port 1119 and the auxiliary chamber 112, so that the auxiliary valve core 134 can control the opening and closing of the salt water injection port 1119 and the auxiliary chamber 112, that is, to control the opening and closing between the auxiliary chamber 112 and the jet flow channel. The salt water injection port 1119 and the auxiliary static valve plate 132 are arranged adjacent to each other, so that the salt water injection port 1119 and the salt water injection hole 1324 are directly connected to each other, which can simplify the connection structure between the salt water injection port 1119 and the 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 connection, 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 block the salt water injection hole 1324 and the auxiliary chamber 112.

[0362] The saline inlet 1120 and the auxiliary static valve plate 132 are arranged adjacent to each other so that the saline inlet 1120 and the saline hole 1323 are directly connected to each other, which can simplify the connection structure between the saline inlet 1120 and the saline hole 1323. The saline hole 1323 faces the side of the saline inlet 1120, so that the saline inlet 1120 and the saline hole 1323 can maintain normal connection, which can simplify the structure of the auxiliary valve core 134. By controlling the rotation of the movable valve plate, the saline hole 1323 is switched between the state of being connected to the jet flow channel and the state of not being connected to the jet flow channel. When the saline hole 1323 does not need to be connected to the jet flow channel, the saline hole 1323 and the jet flow channel can be blocked by the auxiliary movable valve plate 131.

[0363] The valve housing 110 (such as the third housing 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 is connected to the drain hole 1222 of the main valve. By controlling the position switching of the active valve disc 121, the first drain opening 1125 and the corresponding flow channel are switched, and sewage can be discharged through the first drain opening 1125. The second drain opening 1124 corresponds to and is connected to the drain hole 1321 of the auxiliary valve. By controlling the position switching of the auxiliary valve disc 131, the second drain opening 1124 and the corresponding flow channel are switched, and sewage can 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 is connected to at least one of the first drain opening 1125 and the second drain opening 1124, and the end of the drain channel 1114 forms a drain outlet 115, so that sewage is discharged along the drain outlet 115, which can simplify the drain pipeline. A flow limiting component is disposed 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 .

[0364] 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 separately 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.

[0365] refer to Fig.41 and Fig.42 As shown, when the valve housing 110 is provided with a drain channel 1114, the valve housing 110 includes a housing and a cover 1116 connected to the housing, the housing forms a drain groove 1117, and the drain groove 1117 is formed with a first opening in the length direction. The cover 1116 is covered on the housing to close the first opening, so that a drain channel 1114 of the valve housing 110 is formed in the valve housing 110, and a drain port 115 is formed at the end of the drain channel 1114. The function of the drain channel 1114 is the same as the above content, and will not be repeated. The structure of the drain channel 1114 is different, and the structure of the drain channel 1114 is not limited to the above structure, and can also be selected according to needs. 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.

[0366] The valve housing 110 is provided with a main cavity communication hole 116, which communicates the main cavity 111 with the raw water outlet 118, so that the water in the main cavity 111 can flow to the raw water outlet 118 through the main cavity communication hole 116, thereby injecting water into the softening device 190. The water at the raw water outlet 118 can flow into the main cavity 111 through the main cavity communication hole 116, for example, the sewage in the softening device 190 can be discharged into the main cavity 111, and then discharged from the valve housing 110 through the sewage discharge channel 1114, thereby realizing the sewage discharge operation.

[0367] The main cavity communication hole 116 is formed on the wall of the main cavity 111, and the main valve core 124 is located between the main cavity communication hole 116 and the raw water inlet 113, so that the main valve core 124 can control the on-off of the raw water inlet 113 and the main cavity communication hole 116, and can also control whether the raw water can flow into the softening device 190 through the main cavity communication hole 116 and the raw water outlet 118, thereby realizing the control of water injection into the softening device 190. In the salt absorption mode and the backwash mode, the main valve core 124 can block the main cavity 111 from the raw water inlet 113, that is, it can block the main cavity communication hole 116 and the raw water inlet 113, so that the sewage in the main cavity 111 through the raw water outlet 118 and the main cavity communication hole 116 flow channel cannot flow to the raw water inlet 113, thereby avoiding pollution of the raw water at the raw water inlet 113, so that the sewage can only flow to the sewage discharge channel 1114 through the main valve core 124, and finally discharged from the valve housing 110.

[0368] The valve housing 110 is configured with a water outlet channel 1112, and a sub-chamber communication hole 1111 is provided on the wall of the sub-chamber 112. The water outlet channel 1112 is connected to the sub-chamber communication hole 1111 and the soft water outlet 114, and the sub-chamber communication hole 1111 and the soft water inlet 119 are switched on and off by the sub-valve core 134. The sub-chamber 112 is normally connected to the water outlet channel 1112 through the sub-chamber communication hole 1111, so that the water in the sub-chamber 112 flows to the soft water outlet 114. Through the flow path switching of the sub-valve core 134, the sub-chamber 112 can also be connected to other flow paths to achieve different functions. In other words, the water in the sub-chamber 112 can flow along at least two flow paths, one of which is fixed as the sub-chamber 112 flows to the soft water outlet 114, and the other flow paths are changed according to the control switching of the sub-valve core 134. As long as there is available water in the sub-chamber 112, it can be ensured that there is available water at the soft water outlet 114. The auxiliary valve core 134 is arranged between the auxiliary chamber connecting hole 1111 and the soft water inlet 119, so that the auxiliary valve core 134 can control the connection and disconnection between the auxiliary chamber connecting hole 1111 and the soft water inlet 119. In the salt absorption mode, the auxiliary valve core 134 can block the auxiliary chamber connecting hole 1111 and the soft water inlet 119 to prevent the salt water at the soft water inlet 119 from flowing to the auxiliary chamber connecting hole 1111, thereby ensuring that the water flowing to the soft water outlet 114 through the auxiliary chamber connecting hole 1111 will not be contaminated by the salt water.

[0369] 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 .

[0370] It should be noted that the “two sides” in “two sides of the auxiliary valve core 134 ” mentioned here has the same meaning as the “two sides” in “two sides of the auxiliary valve core 134 ” mentioned above, and will not be repeated.

[0371] refer to Fig.61As shown, the four auxiliary valve positions corresponding to the auxiliary valve core on the left side are marked by the cover plate, and the first auxiliary valve position, the second auxiliary valve position, the third auxiliary valve position and the fourth auxiliary valve position correspond to the numbers 1, 2, 3 and 4 in the figure one by one; the three main valve positions corresponding to the main valve core are marked on the right side of the cover plate, the first main valve position, the second main valve position and the third main valve position, which correspond to the numbers 1, 2 and 3 in the figure one by one.

[0372] Among them, reference Figure 1 and Figure 2 As shown, the water outlet channel is formed at the front end of the sub-cavity 112, for example.

[0373] 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 invention 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.

[0374] The internal space and structural composition of the main chamber 111 and the auxiliary chamber 112 are basically the same, and the difference between the two chambers is the different hole structure, quantity, and position, that is, the main chamber 111 and the auxiliary chamber 112 have different functions. The two chamber structures are circular structures, and the left and right chambers are arranged horizontally. The axial direction of the chamber (the direction of the corresponding rotation axis of the valve assembly) is horizontal, and the resin tank connected to the bottom is vertically distributed. Correspondingly, the resin tank is placed vertically in the water softener.

[0375] One side of the main cavity 111 and the sub-cavity 112 of the valve housing 110 is open, and a cover plate 1137 is connected to the valve housing 110 , and the cover plate 1137 closes the main cavity 111 and the sub-cavity 112 .

[0376] The above content describes the structure of the valve housing 110. Figures 7 to 30 as well as Fig.40 The structures of the main valve assembly 120 and the sub-valve assembly 130 will be described.

[0377] refer to Figure 7 , Fig. 9 , Fig.11 and Fig.12 As shown, the main valve assembly 120 includes a main valve core 124 and a main driving part 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.

[0378] Among them, when the soft water valve is in different modes, the hole structure of the main static valve plate 122 is located in the groove of the active valve plate 121 (the groove here can be the aforementioned first groove of the main valve, or it can be a process groove) at the orthographic projection of the active valve plate 121. The hole structure of the main static valve plate 122 is closed by the groove, so that the sealing effect of the hole structure of the main static valve plate 122 can be improved, and the contact area between the main static valve plate 122 and the active valve plate 121 can be reduced, so that the friction between the active valve plate 121 and the main static valve plate 122 is convenient to drive the active valve plate 121 to rotate relative to the main static valve plate 122, and the groove is connected with the space on one side of the main static valve plate 122 through the hole structure of the main static valve plate 122, so that water can enter the groove, which can balance the water pressure and balance the pressure of the active valve plate 121 and the main static valve plate 122.

[0379] 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 .

[0380] In some cases, the main static valve plate 122 is provided with a main valve drain hole 1222 , and in some other cases, the main static valve plate 122 is provided with a main and auxiliary connecting holes 1223 .

[0381] In some cases, the active valve plate 121 is further provided with a main valve second groove 1213 . It can be understood that the main valve second groove 1213 can be a main valve process groove.

[0382] Exemplarily, 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 the 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 the control of the holes of the main static valve plate 122 to cooperate with the active valve plate 121.

[0383] 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 closed and avoiding water leakage.

[0384] Exemplary, reference Fig.17 , Fig. 20 and Fig.29As shown, in the water production mode, water injection mode and positive wash 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 plate 122 are projected on the active valve plate 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 plate 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.

[0385] Exemplarily, the opening area of ​​the second groove 1213 of the main valve is greater than or equal to the opening area of ​​the main and auxiliary connection holes 1223. This ensures that the second groove 1213 of the main valve can surround the main and auxiliary connection holes 1223, so that the main and auxiliary connection holes 1223 are better sealed and water leakage can be avoided.

[0386] refer to Fig.23 and Fig.26 As shown, in the salt absorption mode and the backwash mode, the main valve water inlet 1221 is connected to the main and auxiliary connecting holes 1223 through the main valve first groove 1212, and the raw water of the raw water inlet enters the auxiliary cavity through the main valve water inlet 1221, the main valve first groove 1212, and the main and auxiliary connecting holes 1223. Among them, part of the space of the main valve water inlet 1221 is connected to the main valve first groove 1212, and part of the space of the main valve water inlet 1221 corresponds to the main valve second groove 1213 and is closed by the main valve second groove 1213. The main valve drain hole 1222 is connected to the main valve water inlet 1211.

[0387] refer to Figure 8 , Fig.10 , Fig.13 and Fig.14 As shown, the auxiliary valve assembly 130 includes an auxiliary valve core 134 and an auxiliary driving part 135. The auxiliary valve core 134 includes an auxiliary static valve plate 132 and an auxiliary movable valve plate 131. The auxiliary static valve plate 132 is fixed in the auxiliary cavity 112 of the valve housing 110, and the auxiliary movable valve plate 131 is rotatably arranged in the auxiliary cavity 112.

[0388] Among them, when the soft water valve is in different modes, at least part of the hole structure of the auxiliary static valve plate 132 is located in the groove of the auxiliary moving valve plate 131 (the groove here can be an auxiliary valve process groove, or the aforementioned auxiliary valve first groove) in the orthographic projection of the auxiliary moving valve plate 131. Taking the auxiliary valve process groove as an example, the hole structure of the auxiliary static valve plate 132 is closed by the auxiliary valve process groove, so that the sealing effect of the hole structure of the auxiliary static valve plate 132 can be improved, and the contact area between the auxiliary static valve plate 132 and the auxiliary moving valve plate 131 can be reduced, so that the friction between the auxiliary moving valve plate 131 and the auxiliary static valve plate 132 is convenient for driving the auxiliary moving valve plate 131 to rotate relative to the auxiliary static valve plate 132, and the auxiliary valve process groove is connected with the space on one side of the auxiliary static valve plate 132 through the hole structure of the auxiliary static valve plate 132, so that water can enter the auxiliary valve process groove, which can balance the water pressure and balance the pressure of the auxiliary moving valve plate 131 and the auxiliary static valve plate 132.

[0389] Among them, reference Fig.13 and Fig.14 As shown, the auxiliary movable valve plate 131 is provided with an auxiliary valve water inlet 1314 and an auxiliary valve first groove 1311 ; the auxiliary static valve plate 132 is provided with a softening connection hole 1322 , a brine hole 1323 and a brine injection hole 1324 .

[0390] In some cases, the auxiliary static valve plate 132 is provided with an auxiliary valve drain hole 1321 .

[0391] 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. It can be understood that the auxiliary valve process groove can 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, and the auxiliary valve process groove can also be other groove structures besides 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.

[0392] Exemplarily, 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 plate 131 to facilitate controlling the rotation of the auxiliary movable valve plate 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 plate 132 to facilitate controlling the holes of the auxiliary static valve plate 132 to cooperate with the auxiliary movable valve plate 131.

[0393] 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 closed and avoiding water leakage.

[0394] In some cases, the auxiliary valve first groove 1311 extends along the radial direction of the auxiliary valve disc 131, and the auxiliary valve disc 131 rotates so that the auxiliary valve first groove 1311 switches between the states of connecting or disconnecting the saline hole 1323 and the softening connection hole 1322. During the movement of the auxiliary valve first groove 1311, the auxiliary valve first groove 1311 can be always connected with the saline hole 1323, or can be adjusted on and off. When the auxiliary valve first groove 1311 can be always connected with the saline hole 1323, the saline hole 1323 can be at the center of the auxiliary valve disc 131.

[0395] 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, and 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 plate 132 is located in the fourth groove 1315 of the auxiliary valve as the orthographic projection on the auxiliary active valve plate 131, that is, the auxiliary valve water inlet 1314 is disconnected from the auxiliary valve drain hole 1321, and the orthographic projection of the salt water hole 1323 on the active valve plate 121 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 active valve plate 131 are disconnected from the salt water hole 1323, and the salt absorption water injection hole 1324 is located in the orthographic projection of the auxiliary active valve plate 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.

[0396] Exemplarily, 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.

[0397] Exemplarily, the opening area of ​​the auxiliary valve first groove 1311 is greater than or equal to the opening area of ​​the salt water hole 1323 , and the opening area of ​​the auxiliary valve third groove 1313 is greater than or equal to the opening area of ​​the salt absorption and water injection hole 1324 .

[0398] 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 positive 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 positive 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.

[0399] Exemplarily, the opening area of ​​the auxiliary valve fifth groove 1316 is larger than the opening area of ​​the auxiliary valve drain hole 1321 .

[0400] 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 form a second salt absorption flow channel 1342 through the auxiliary valve first groove 1311 and the softening connection hole 1322. At this time, the orthographic projection of the auxiliary valve drain hole 1321 on the auxiliary valve disc 131 is located in 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.

[0401] Exemplarily, 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 .

[0402] 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.

[0403] Among them, in the positive washing mode, the orthographic projection of the salt absorption water injection hole 1324 on the auxiliary valve plate 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 plate 131 are disconnected from the salt absorption water injection hole 1324, and the orthographic projection of the brine hole 1323 on the auxiliary valve plate 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 plate 131 are disconnected from the brine hole 1323.

[0404] Exemplarily, the opening area of ​​the auxiliary valve second groove 1312 is greater than or equal to the opening area of ​​the salt absorption and water injection hole 1324 .

[0405] 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 box 200 in the water softener to soften the raw water and facilitate users to use soft water. Figure 1 and Fig.42 As shown, a specific embodiment of the present invention is described.

[0406] The water softener includes:

[0407] 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 communicated through a softening device 190, the secondary chamber 112 is communicated with the soft water outlet 114, and the main chamber 111 is communicated with the raw water outlet 118;

[0408] The main valve assembly 120 includes a main valve core 124 and a main driving part 125 for driving the main valve core 124 to move. The main valve core 124 is located in the main chamber 111, wherein the main chamber 111 and the raw water inlet 113 and the auxiliary chamber 112 and the raw water inlet 113 can be switched on and off by the main valve core 124.

[0409] 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 cavity 112. The flow passage between the soft water inlet 119 and the auxiliary valve core 134 can be adjusted on and off. The flow passage between the auxiliary cavity 112 and the auxiliary valve core 134 can be adjusted on and off.

[0410] Based on the main driving part 125 driving the main valve core 124 to rotate, the auxiliary driving part 135 drives the auxiliary valve core 134 to rotate, so that the soft water valve is switched among the water production mode, the water injection mode, the salt absorption mode and the cleaning mode.

[0411] It can be understood that the main valve core 124 is driven to rotate by the main driving unit 125, so that the main valve core 124 switches between the first main valve position and the third main valve position, and the secondary valve core 134 is driven to rotate by the secondary driving unit 135, so that the secondary valve core 134 switches between multiple secondary valve positions, so that the soft water valve can switch between water production mode, water injection mode, salt absorption mode and cleaning mode.

[0412] When the softening valve is required to be in the water making mode, the main valve core 124 is driven to the first main valve position. At this time, the main chamber 111 and the raw water inlet 113 are connected through the main valve core 124, and the sub-chamber 112 and the raw water inlet 113 are disconnected, so that the raw water can enter the valve housing 110 from the raw water inlet 113, and then the raw water flows to the main chamber 111 through the main valve core 124. Since the main chamber 111 and the raw water outlet 118 are connected, the raw water in the main chamber 111 will flow into the softening device 190 through the raw water outlet 118. The raw water becomes soft water after being processed by the softening device 190, and then the soft water flows into the valve housing 110 from the soft water inlet 119. At this time, the auxiliary valve core 134 is in the first auxiliary valve position driven by the auxiliary driving part 135, and the soft water inlet 119 is connected with the auxiliary cavity 112 through the auxiliary valve core 134, so that soft water can flow from the soft water inlet 119 to the auxiliary cavity 112 through the auxiliary valve core 134, and then the soft water flows from the auxiliary cavity 112 to the soft water outlet 114, so that the user can obtain soft water at the soft water outlet 114, so that the soft water valve can realize the water making function.

[0413] When the soft water valve is required to be in the water injection mode, the main valve core 124 is driven to be in the first main valve position. At this time, the flow path of the raw water is the same as that in the water production mode, and the raw water flows into the softening device 190 along the path of the raw water inlet 113, the main valve core 124, the main cavity 111 and the raw water outlet 118. At this time, the auxiliary driving part 135 drives the auxiliary valve core 134 to be in the second auxiliary valve position, and the auxiliary valve core 134 communicates with the soft water inlet 119 and the auxiliary cavity 112. At the same time, the soft water inlet 119 and / or the auxiliary cavity 112 are also communicated with the water injection channel 137 in the auxiliary valve core 134, so that the soft water can flow into the auxiliary cavity 112. At the same time, the soft water can also flow into the salt box 200 connected to the soft water valve through the water injection channel 137, so as to realize the water injection function of the soft water valve.

[0414] When the soft water valve needs to be in the salt absorption mode, the main valve core 124 is driven to the third main valve position. At this time, the sub-chamber 112 and the raw water inlet 113 are connected through the main valve core 124, and the main valve core 124 disconnects the raw water inlet 113 and the main chamber 111. At this time, the raw water can enter the valve housing 110 from the raw water inlet 113, and then the raw water flows to the sub-chamber 112 through the main valve core 124. At this time, the auxiliary valve core 134 is driven to be in the third auxiliary valve position, so that the auxiliary chamber 112 cannot be directly connected to the soft water inlet 119, but needs to be connected to the soft water inlet 119 through the flow channel in the auxiliary valve core 134, so that part of the raw water in the auxiliary chamber 112 flows along the flow channel in the auxiliary valve core 134 to the soft water inlet 119. In the process of the raw water flowing from the flow channel in the auxiliary valve core 134 to the soft water inlet 119, it can be mixed with salt water, and then the mixed liquid is transported to the soft water inlet 119, and enters the softening device 190 from the soft water inlet 119, so that the salt water can regenerate the softening device 190. Another part of the raw water in the auxiliary chamber 112 can flow to the soft water outlet 114, so that the user still has raw water to use in the salt absorption mode.

[0415] When the cleaning mode includes a backwash mode and the soft water valve is required to be in the backwash mode, the main valve core 124 is driven to the third main valve position. At this time, the path of raw water flowing into the sub-chamber 112 is the same as that in the salt absorption mode, and the raw water flows into the sub-chamber 112 along the raw water inlet 113 and the main valve core 124. At this time, the auxiliary driving part 135 drives the auxiliary valve core 134 to the first auxiliary valve position, so that the sub-chamber 112 and the soft water inlet 119 are connected, and part of the raw water in the sub-chamber 112 flows to the soft water inlet 119 through the auxiliary valve core 134, and then flows into the softening device 190 through the soft water inlet 119 to clean the softening device 190, and the cleaned sewage flows out of the softening device 190 from the raw water outlet 118 and is discharged from the valve housing 110. Another part of the raw water in the sub-chamber 112 can flow to the soft water outlet 114, so that the user still has raw water to use in the salt absorption mode.

[0416] When the cleaning mode includes a forward washing mode and the soft water valve is required to be in the forward washing mode, the main valve core 124 is driven to be in the first main valve position. At this time, the flow path of the raw water is the same as that of the water production mode. The raw water flows along the path of the raw water inlet 113, the main valve core 124, the main cavity 111 and the raw water outlet 118 to the softening device 190 to clean the softening device 190. At this time, the auxiliary valve core 134 is driven to be in the fourth auxiliary valve position, and the soft water inlet 119 is connected with the auxiliary cavity 112 through the auxiliary valve core 134. The water after cleaning the softening device 190 flows out of the softening device 190 from the soft water inlet 119, and then the water flows from the softening inlet to the auxiliary cavity 112. Before controlling the soft water valve to be in the forward washing mode, the soft water valve can be controlled to be in the backwash mode first, that is, the soft water valve is backwashed first to reduce the salt content of the water in the soft water valve. After the backwash mode, in the forward wash mode, the salt content of the water in the soft water valve is low and the water can be used by the user, so the water in the auxiliary chamber 112 can be divided into two parts, one part is discharged from the valve housing 110 through the auxiliary valve core 134, and the other part flows to the soft water outlet 114, so that the user has water available in the forward wash mode.

[0417] That is, the soft water valve of the present invention can switch among water production mode, water injection mode, salt absorption mode and cleaning mode through the cooperation of the valve shell 110, the main chamber 111, the sub-chamber 112, the main valve assembly 120 and the sub-valve assembly 130, 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.

[0418] Different from the above embodiment, Figures 45 to 60 As shown, another soft water valve is provided, which differs from the above-mentioned embodiment in that "the raw water inlet is always connected with the main chamber, the raw water outlet and the main chamber are on-off regulated by the main valve core, the soft water inlet and the soft water outlet are always connected, and the soft water outlet and the auxiliary chamber can be on-off regulated by the auxiliary valve core". Correspondingly, the structures of the valve shell, the main valve core and the auxiliary valve core are different, but the functions are basically the same, and they can all realize the switching and operation of water production mode, water injection mode, salt absorption mode, backwash mode and forward wash mode.

[0419] Next, the structures of the valve housing, the main valve core and the sub-valve core are described.

[0420] The valve housing is provided with a main cavity 111 and a sub-cavity 112 . The positions of the holes corresponding to the main cavity 111 are different from those in the above embodiment. The positions of the holes corresponding to the sub-cavity 112 are different from those in the above embodiment.

[0421] refer to Fig.47 and Fig.48As shown, the main valve core includes an active valve disc 321 and a main static valve disc 322, and the auxiliary valve disc includes an auxiliary active valve disc 331 and an auxiliary static valve disc 332. The active valve disc 321 is connected to the main driving part, the main static valve disc 322 is fixed to the valve housing 110, the auxiliary active valve disc 331 is connected to the auxiliary driving part, and the auxiliary static valve disc 332 is fixed to the valve housing 110.

[0422] In each functional mode, the main valve core includes a first main valve position and a third main valve position, which is the same as the main valve core in the above embodiment, and the main valve core may also include the above second main valve position; the auxiliary valve core includes a first auxiliary valve position, a second auxiliary valve position, a third auxiliary valve position, a fourth auxiliary valve position and a fifth auxiliary valve position. In the water production mode and the backwash mode, the position of the auxiliary valve core is different, which is different from the auxiliary valve core in the above embodiment. Fig.62 As shown, the five auxiliary valve positions corresponding to the auxiliary valve core on the left side are marked by the cover plate, and the first auxiliary valve position, the second auxiliary valve position, the third auxiliary valve position, the fourth auxiliary valve position and the fifth auxiliary valve position correspond to the numbers 1, 2, 3, 4 and 5 in the figure one by one; the three main valve positions corresponding to the main valve core are marked on the right side of the cover plate, the first main valve position, the second main valve position and the third main valve position, which correspond to the numbers 1, 2 and 3 in the figure one by one.

[0423] refer to Fig.49 , Fig.50 and Fig.53 As shown, the main valve core is in the first main valve position, and the main water control channel 126 of the main valve core connects the main chamber 111 with the raw water outlet 118. At the same time, the main chamber 111 connects the raw water inlet 113, that is, the raw water of the raw water inlet 113 can be transported to the raw water outlet 118 through the main valve core, so as to realize the process of transporting raw water to the softening device 190. At this time, the switching of the soft water valve between the water production mode and the water injection mode is realized by switching the position of the auxiliary valve core. In the water production mode, the water injection mode and the positive washing mode, the main valve core is in the first main valve position, for example, the main static valve plate 322 is configured with a main valve water inlet hole 3221, and the active valve plate 321 is configured with a main valve water inlet 3211. In the first main valve position, the main valve water inlet 3211 is connected with the raw water inlet 113, and the main valve water inlet hole 3221 is connected with the main valve water inlet 3211 to form the main water control channel 126.

[0424] refer to Fig.50As shown, the active valve plate 321 includes a valve plate body and a shielding portion 3214. In the water making mode, the shielding portion 3214 is located between the main shaft assembly 1251 and the main valve water inlet hole 3221. The main valve water inlet 3211 is formed between the shielding portion 3214 and the main static valve plate 322. The orthographic projection area of ​​the shielding portion 3214 on the main static valve plate 322 is smaller than the flow area of ​​the main valve water inlet hole 3221. The shielding portion 3214 does not affect the water flow effect of the main valve water inlet hole 3221. The projection area of ​​the orthographic projection of the valve plate body and the shielding portion 3214 on the end face of the main shaft assembly 1251 covers the end face area of ​​the main shaft assembly 1251. The setting of the shielding portion 3214 can weaken the impact of water on the main shaft assembly 1251.

[0425] In other cases, reference Fig.49 , Fig.50 and Fig.56 As shown, the main valve core is in the third main valve position, the first sewage discharge channel 127 of the main valve core is connected, the main water control channel 126 is disconnected, and the first sewage discharge channel 127 is connected to the raw water outlet 118 and the sewage discharge channel 1114 of the valve housing 110, so that the sewage is discharged along the raw water outlet 118, the first sewage discharge channel 127 and the sewage discharge channel 1114, forming the "first sewage discharge channel 127", and the main valve core is used to guide the sewage in the softening device 190. In the mode where sewage needs to be discharged, the main valve core can be switched to the third main valve position. At this time, water can be sent to the softening device 190 through the auxiliary valve core and the soft water inlet 119. The main valve core is in the third main valve position, and the soft water valve is switched between the salt absorption mode and the backwash mode by switching the position of the auxiliary valve core. Among them, the structural form of the "first sewage discharge channel 127", for example, the main static valve plate 322 is provided with a main valve water inlet hole 3221 and a main valve sewage discharge hole 3222, the active valve plate 321 includes a main valve water inlet 3211 and a main valve first groove body 3212, in the third main valve position, the main valve first groove body 3212 connects the main valve water inlet hole 3221 and the main valve sewage discharge hole 3222 to form a first sewage discharge channel 127, the main valve water inlet hole 3221 is connected to the raw water outlet 118, the main valve water inlet 3211 is connected to the main cavity 111, and the main static valve plate 322 separates the main valve water inlet 3211 from the raw water outlet 118.

[0426] The above content describes the two positions of the main valve core. Next, each mode will be described in combination with the positions of the main valve core and the sub-valve core.

[0427] When the soft water valve includes a water production mode, a water injection mode and a salt absorption mode, the auxiliary driving part is used to drive the auxiliary valve core to rotate and switch between the first auxiliary valve position, the second auxiliary valve position and the fourth auxiliary valve position. The first auxiliary valve position, the second auxiliary valve position and the fourth auxiliary valve position are arranged sequentially along the circumference of the auxiliary valve core to facilitate the position adjustment of the auxiliary valve core.

[0428] refer to Fig.53 and Fig.54As shown, in the water production mode, the auxiliary valve core is in the first auxiliary valve position, the main valve core is used to pass water to the softening device 190, based on the soft water inlet 119 being connected to the soft water outlet 114, and the auxiliary valve core is used to disconnect the soft water inlet 119 from other flow channels. The holes of the auxiliary moving valve plate are all closed by the grooves of the auxiliary static valve plate.

[0429] refer to Fig.53 and Fig.55 As shown, in the water injection mode, the auxiliary valve core is in the fourth auxiliary valve position, the main valve core is used to pass water to the softening device 190, and the auxiliary valve core is used to pass the soft water in the softening device 190 into the salt box connection port 1110. In the fourth auxiliary valve position, the water injection channel 137 of the auxiliary valve core is connected, and the water injection channel 137 connects the soft water inlet 119 with the salt box connection port 1110. Among them, the auxiliary movable valve plate 331 is configured with an auxiliary valve first slot 3311, and the auxiliary static valve plate 332 is configured with a salt absorption water injection hole 3324 and a softening connection hole 3322. The salt absorption water injection hole 3324 is connected to the salt box connection port 1110, and the softening connection hole 3322 is connected to the soft water inlet 119. The auxiliary valve first slot 3311 connects the salt absorption water injection hole 3324 with the softening connection hole 3322 to form the water injection channel 137.

[0430] refer to Fig.56 and Fig.57 As shown, in the salt absorption mode, the auxiliary valve core is in the second auxiliary valve position, and the auxiliary valve core is used to pass the raw water into the ejector 160, and driven by the flow power of the raw water, the salt solution in the salt box connection 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. In the second auxiliary valve position, the first salt absorption flow channel 1341 and the second salt absorption flow channel 1342 of the auxiliary valve core are connected, the jet inlet 161 of the jet channel is connected to the auxiliary cavity 112 through the first salt absorption flow channel 1341, the suction port 163 of the jet channel is connected to the salt box connection port 1110, the jet outlet 162 of the jet channel is connected to the soft water inlet 119 through the second salt absorption flow channel 1342, and the first sewage discharge flow channel 127 of the main valve core is connected to the raw water outlet 118 Together with the sewage channel 1114 of the valve housing 110 (the end of the sewage channel 1114 forms a sewage outlet 115), the raw water in the sub-chamber 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 channel 127 and the sewage outlet 115, thereby realizing the salt absorption and slow washing of the softening device 190.

[0431] The auxiliary static valve plate 332 is constructed with a softening connection hole 3322, a brine outlet 3323 and a brine injection hole 3324. The auxiliary movable valve plate 331 is constructed with an auxiliary valve third slot body 3313 and an auxiliary valve water inlet 3314. The auxiliary valve water inlet 3314 is connected to the brine injection hole 3324 to form a first salt absorption flow channel 1341. The auxiliary valve water inlet 3314 is connected to the raw water inlet 113 through the auxiliary cavity 112. The salt injection hole 3324 is connected to the jet inlet 161. The brine outlet 3323 is connected to the softening connection hole 3322 through the auxiliary valve third slot body 3313 to form a second salt absorption flow channel 1342. The brine outlet 3323 is connected to the jet outlet 162. The softening connection hole 3322 is connected to the soft water inlet 119.

[0432] refer to Fig.56 and Fig.58 As shown, when the cleaning mode includes the backwash mode, the auxiliary valve core also includes the fifth auxiliary valve position. In the backwash mode, the auxiliary valve core is in the fifth auxiliary valve position, and the main valve core is in the third main valve position. The auxiliary valve core is used to pass the raw water into the softening device 190, and the water in the softening device 190 is discharged along the valve housing 110 through the main valve core. In the fifth auxiliary valve position, the backwash flow channel of the auxiliary valve core is connected, and the backwash flow channel connects the soft water inlet 119 and the auxiliary cavity 112. The auxiliary static valve plate 332 is provided with a softening connection hole 3322, and the auxiliary movable valve plate 331 is provided with an auxiliary valve water inlet 3314. The auxiliary valve water inlet 3314 is connected to the raw water inlet 113, and the auxiliary valve water inlet 3314 is connected to the softening connection hole 3322 to form a backwash flow channel.

[0433] refer to Fig.53 and Fig.59 As shown, when the cleaning mode includes the forward washing mode, the auxiliary valve core is in the third auxiliary valve position, the main valve core is in the first main valve position, the main valve core is used to pass the raw water into the softening device 190, and the water in the softening device 190 is discharged along the valve housing 110 through the auxiliary valve core. In the third auxiliary valve position, the second sewage discharge flow channel of the auxiliary valve core is connected, the second sewage discharge flow channel connects the soft water inlet 119 and the sewage discharge channel 1114 of the valve housing 110, and the first groove body 3311 of the auxiliary valve connects the softening connection hole 3322 and the sewage discharge hole 3321 of the auxiliary valve to form a second sewage discharge flow channel.

[0434] Regarding the description of the status and functional modes of the soft water valve, the structure of each flow channel is not elaborated here and can be combined with the above description of each mode.

[0435] refer to Fig.62 As shown, when the auxiliary valve core includes the first auxiliary valve position, the second auxiliary valve position, the third auxiliary valve position, the fourth auxiliary valve position and the fifth auxiliary valve position, the first auxiliary valve position, the second auxiliary valve position, the third auxiliary valve position, the fourth auxiliary valve position and the fifth auxiliary valve position are arranged in sequence along the circumference of the auxiliary valve core, and the auxiliary driving part can move the auxiliary valve core to the corresponding auxiliary valve position by driving the auxiliary valve plate 131 to rotate.

[0436] In some cases, reference Fig.60 As shown, the main valve core also includes a second main valve position, and the main valve core 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 isolates the raw water inlet 113 and the raw water outlet 118. At this time, the water in the raw water inlet 113 will not enter the soft water valve, and the water will stop entering the main chamber 111, the sub-chamber 112, and the softening device 190. The flow pressure of water on the sub-valve core in the sub-chamber 112 becomes smaller, which can reduce the resistance of the water pressure to the switching of the sub-valve core position, making the position switching of the sub-valve core more labor-saving, and can reduce the driving force provided by the sub-driving unit to the sub-moving valve plate 331, which can reduce the power consumption and the loss of the sub-valve assembly 130, which helps to extend the life of the sub-valve assembly 130 and the life of the soft water valve.

[0437] When the active valve disc 321 is provided with the main valve second groove body 3213 , in the second main valve position, the orthographic projection of the main valve water inlet hole 3221 on the active valve disc 321 is at least partially located in the main valve second groove body 3213 .

[0438] The main valve core is in the second main valve position, and the auxiliary driving part can be controlled to drive the auxiliary valve core to switch between multiple auxiliary valve positions.

[0439] When the main valve core includes the first main valve position or the second main valve position, during the process of the main valve core switching from the first main valve position to the second main valve position, the main valve drain hole 3222 is connected to the main valve water inlet hole 3221. Based on the main valve drain hole 3222 being connected to the drain port of the valve housing, the raw water outlet is connected to the main valve water inlet hole 3221. The pressure in the softening device can be discharged through the path of the raw water outlet, the main valve water inlet hole 3221, the main valve drain hole 3222, and the drain port. The pressure between the softening device and the soft water valve will be unloaded, and the pressure in the softening device will not increase after being released. After the softening device is pressure-relieved through the main valve core, the pressure between the auxiliary static valve plate 332 and the softening device can be reduced. If the pressure is not released, the pressure in the softening device will be transmitted to the auxiliary chamber and between the auxiliary static valve plate 332 and the auxiliary moving valve plate 331 through the softening connection hole 3322 of the auxiliary static valve plate 332, which will increase the motor torque. The second main valve position also has the function of reducing the torque of the auxiliary valve core.

[0440] The auxiliary valve disc 331 is also provided with an auxiliary valve second groove body 3312, which is a process groove. Under the condition of meeting the structural strength of the auxiliary valve disc 331, the auxiliary valve second groove body 3312 can be opened to avoid the positions of the auxiliary valve first groove body 3311, the auxiliary valve third groove body 3313 and the auxiliary valve water inlet 3314, thereby reducing the contact area between the auxiliary valve disc 331 and the auxiliary static valve disc 332.

[0441] Matching the structures of the main valve core and the auxiliary valve core, a valve housing structure is provided.

[0442] refer to Fig.46 As shown, the valve housing 110 is provided with a main chamber inlet 316, the raw water channel and the main chamber 111 are always connected through the main chamber inlet 316, and the raw water in the raw water channel enters the main chamber 111 through the main chamber inlet 316. The valve housing is provided with a connecting channel 3111, and the connecting channel 3111 connects the main chamber 111 and the secondary chamber 112, and the main chamber 111 and the secondary chamber 112 are always connected. The valve housing 110 is provided with a water inlet hole 3126 for connecting the main chamber 111 and the raw water outlet 118, and the water inlet hole 3126 is correspondingly connected to the water inlet hole 3221 of the main valve.

[0443] The valve housing 110 is provided with a softening connection port 3121 and a salt water injection port 3119. The softening connection port 3121 corresponds to and communicates with the softening connection hole 3322, and the salt water injection port 3119 corresponds to and communicates with the salt water injection hole 3324. The valve housing 110 is also provided with a brine port 3120. The brine port 3120 corresponds to and communicates with the brine outlet 3323 of the auxiliary static valve plate 332, and the brine port 3120 can be communicated with the jet outlet 162 of the jet channel.

[0444] The valve housing 110 (such as the third housing portion 1142) is provided with at least one of a first drain opening 3125 and a second drain opening 3124. The first drain opening 3125 corresponds to and is connected with the drain hole 3222 of the main valve, and sewage can be discharged through the first drain opening 3125; the second drain opening 3124 corresponds to and is connected with the drain hole 3321 of the auxiliary valve, and sewage can be discharged through the second drain opening 1124. When the valve housing 110 is also provided with a drain channel, one end of the drain channel forms a drain process port 3117, and the drain process port 3117 and the end of the installation channel 1136 are closed by the same end cover, and the other end of the drain channel forms a drain port, which is convenient for molding.

[0445] The above contents have been described for the switching and adjustment of the various modes, passages and valve cores of the soft water valve. Next, other components of the soft water valve will be described. The following contents are applicable to the soft water valve of any of the above embodiments.

[0446] In the above-mentioned soft water valve, refer to Fig.36 As shown, the main valve assembly further includes a main encoder connected to the main drive part, and / or the auxiliary valve assembly further includes an auxiliary encoder connected to the auxiliary drive part. The main encoder detects the rotation angle of the main drive part relative to the main initial position, and / or the auxiliary encoder detects the rotation angle of the auxiliary drive part relative to the auxiliary initial position.

[0447] The main encoder can measure the number of main pulses of the main drive unit, and control the main drive unit to rotate and set the number of main pulses according to the target main angle position of the main drive unit, so that the main drive unit can accurately reach the target main angle position. The auxiliary encoder can measure the number of auxiliary pulses of the auxiliary drive unit, and control the auxiliary drive unit to rotate and set the number of auxiliary pulses according to the target auxiliary angle position of the auxiliary drive unit, so that the auxiliary drive unit can accurately reach the target auxiliary angle position.

[0448] Among them, the main drive unit can be a motor with an encoder, and the auxiliary drive unit can be a motor with an encoder. At least one of the main encoder and the auxiliary encoder can be set to an AB phase encoder. The AB phase encoder outputs two sets of pulse sequences with a phase difference of 90°, and the leading and lagging relationship of the two pulses is just opposite during forward and reverse rotation. On the rising edge of the B phase pulse, the level of the A phase pulse is just opposite during forward and reverse rotation. Therefore, using the AB phase encoder, the direction of rotation of the shaft can be identified. The motor (main drive unit or auxiliary drive unit) will obtain N pulses when it rotates one circle. The rotation of the motor drives the gear of the reduction box to rotate, so as to drive the output shaft to rotate, thereby changing the state of the waterway. The number of pulses when the output shaft rotates 360° = N pulses per circle x the reduction ratio K of the reduction box.

[0449] In some cases, reference Fig.36 As shown, the soft water valve also includes a main trigger component 129, which is used to detect whether the main driving part has moved to the main initial position. The main trigger component 129 is connected to the rotating shaft of the main driving part, and the main trigger component 129 rotates synchronously with the main driving part, or the main trigger component 129 is relatively fixed to the valve housing (the main trigger component is fixed to the cover plate), and the main driving part rotates relative to the main trigger component 129.

[0450] The main trigger 129 can be a micro switch, a position sensor, etc.

[0451] In some other cases, the soft water valve also includes an auxiliary trigger component 139, which is used to detect whether the auxiliary driving part moves to the auxiliary initial position. The auxiliary trigger component 139 is connected to the rotating shaft of the auxiliary driving part, and the auxiliary trigger component 139 rotates synchronously with the auxiliary driving part, or the auxiliary trigger component 139 is relatively fixed to the valve housing (the auxiliary trigger component is fixed to the cover plate), and the auxiliary driving part rotates relative to the auxiliary trigger component 139.

[0452] The auxiliary triggering member 139 may be a micro switch, a position sensor, etc.

[0453] When the trigger (main trigger or auxiliary trigger) is a micro switch, when the power is initially turned on, the output shaft of the control valve head rotates in the opposite direction until the output shaft touches the micro switch and presses the micro switch. When the trigger signal is received, the output shaft of the control valve head stops moving and the current position is set as the initial position (main initial position or auxiliary initial position). The number of pulses at the initial position can be recorded as 0, that is, the initial value is 0. Repeat the above steps to complete the motor reset of the main chamber and the auxiliary chamber in turn, thereby completing the confirmation of the initial position.

[0454] According to the angle of the target position of the water channel to be controlled, it is assumed that the angle between the main valve core and the main initial position is angle D1, and the angle between the auxiliary valve core and the auxiliary initial position is angle D2.

[0455] The number of pulses of the main valve core rotation is M1=D1 / 360*N*K, where N pulses are obtained when the motor rotates one circle, and the reduction ratio of the reduction box is K.

[0456] The output shaft is controlled to rotate in the set direction (forward or reverse), and the number of AB phase pulse outputs is collected in real time. A 125 microsecond periodic interrupt is used to detect the accumulated number of pulses N1 every 125 microseconds, and the accumulated number N0'=N0+N1 is added to the latest N0' number, which is compared with the M1 number. If N0' is equal to M1, the motor is immediately controlled to stop, so that the output shaft stops at the target D1 angle in time. Among them, rotation from the current position to the direction away from the initial position can be understood as forward rotation, and rotation from the current position to the direction close to the initial position can be understood as reverse rotation.

[0457] Similarly, the above control process is repeated to control the output shaft of the auxiliary drive unit to stop at the target angle D2 in time, and the purpose of accurately opening and disconnecting the required water channel is achieved by switching the relative positions of the two output shafts.

[0458] The following content provides an embodiment of another aspect of the present invention. The control method of a soft water valve can be applied to any of the soft water valves described above. Of course, the control method of a soft water valve described below can also be applied to other forms of soft water valves.

[0459] refer to Fig.63 As shown, the control method of the soft water valve includes:

[0460] Step 110, obtaining the target number of main pulses required for the main drive unit to drive the main valve core to rotate to the target main valve position, controlling the main drive unit to rotate and recording the current number of main pulses of the main drive unit through the main encoder of the main drive unit, and determining that the current number of main pulses is equal to the target number of main pulses, then controlling the main drive unit to stop, and the main preset flow path of the soft water valve is connected;

[0461] The target number of main pulses may be understood as the number of main pulses corresponding to the angle at which the main driving part needs to rotate when the main valve core rotates from the current main valve position to the target main valve position.

[0462] The main encoder is used to record the number of main pulses of the shaft of the main drive unit.

[0463] Determine that the current main pulse number is equal to the target main pulse number, corresponding to the main valve core rotating to the target main valve position.

[0464] The main preset flow path of the soft water valve is connected, which can be understood as the flow path between at least two components of the raw water inlet, the main valve core, the main cavity, the raw water outlet, the auxiliary cavity and the sewage outlet in the above embodiment.

[0465] Step 120, obtaining the target number of auxiliary pulses required for the auxiliary drive unit to drive the auxiliary valve core to rotate to the target auxiliary valve position, controlling the auxiliary drive unit to rotate and recording the current number of auxiliary pulses of the auxiliary drive unit through the auxiliary encoder of the auxiliary drive unit, and determining that the current number of auxiliary pulses is equal to the target number of auxiliary pulses, then controlling the auxiliary drive unit to stop, the auxiliary preset flow path of the soft water valve is connected, and the soft water valve operates in one of the water production mode, water injection mode, salt absorption mode and cleaning mode.

[0466] The target number of auxiliary pulses may be understood as the number of auxiliary pulses corresponding to the angle at which the main driving part needs to rotate when the auxiliary valve core rotates from the current auxiliary valve position to the target auxiliary valve position.

[0467] The auxiliary encoder is used to record the number of auxiliary pulses that the shaft of the auxiliary drive unit rotates.

[0468] It is determined that the current auxiliary pulse number is equal to the target auxiliary pulse number, corresponding to the auxiliary valve core rotating to the target auxiliary valve position.

[0469] The auxiliary preset flow path of the soft water valve is connected, which can be understood as the flow path between at least two components among the soft water inlet, the soft water outlet, the auxiliary chamber, the salt box connection port and the sewage outlet in the above embodiment.

[0470] The main preset flow path of the soft water valve is connected, the auxiliary preset flow path is connected, and the soft water valve is in one of the water production mode, the water injection mode, the salt absorption mode and the cleaning mode.

[0471] The structure and model of the main encoder and the sub-encoder can be selected according to needs.

[0472] It should be noted that the order of step 110 and step 120 is not limited. When both step 110 and step 120 are completed, the soft water valve operates in one of the water production mode, water injection mode, salt absorption mode and cleaning mode.

[0473] The control method of the soft water valve of the embodiment of the present invention can accurately control the angular position of the main driving part through the main encoder, and accurately control the angular position of the sub-encoder through the sub-encoder, thereby ensuring that the mode adjustment of the soft water valve is more accurate.

[0474] Based on the target main valve position including the first main valve position and the third main valve position, the target main pulse number correspondingly includes the first main pulse number and the third main pulse number;

[0475] In step 110, it is determined that the current main pulse number is equal to the first main pulse number, and the raw water inlet, the main chamber, the main valve core and the raw water outlet form a main preset flow path.

[0476] In the first main valve position, the soft water valve can be in water production mode, water injection mode or positive washing mode. At this time, it can be understood that the main preset flow path is connected, and the raw water from the raw water inlet can be diverted to the raw water outlet to supply water to the softening device; in some cases, refer to Fig. 27 As shown, the backwash mode is also in the first main valve position. At this time, the water flow direction is opposite to the aforementioned modes (water production mode, water injection mode and forward wash mode), but the connected flow paths are the same.

[0477] or,

[0478] In step 110, it is determined that the current main pulse number is equal to the third main pulse number, and a main preset flow path is formed between the raw water inlet and the auxiliary chamber, wherein the main valve core connects the raw water inlet and the auxiliary chamber, or the raw water inlet is connected to the auxiliary chamber through the main chamber.

[0479] In the third main valve position, the soft water valve can be in the salt absorption mode or backwash mode, the raw water inlet can deliver water to the auxiliary chamber, and then deliver water to the salt box connection port (or soft water inlet) through the auxiliary chamber, such as sucking salt solution in the salt box by raw water, or sending raw water to the softening device through the auxiliary chamber for backwashing. In some cases, in the third main valve position, the soft water valve can be in the water injection mode, the raw water inlet can deliver water to the auxiliary chamber, and then deliver water to the salt box through the auxiliary chamber and the salt box connection port. In some cases, refer to Fig.26 As shown, in the third main valve position, the soft water valve can be in backwash mode, the raw water inlet can deliver water to the auxiliary chamber, and the auxiliary chamber delivers water to the softening inlet to achieve backwashing.

[0480] It can be understood that before step 120, before the step of controlling the auxiliary driving unit to rotate, the following steps are also included:

[0481] Step 130, controlling the main drive unit to rotate and recording the current main pulse number of the main drive unit through the main encoder of the main drive unit, and determining that the current main pulse number is equal to the second main pulse number, then controlling the main drive unit to stop, the main valve core is located at the second main valve position, and the main valve core disconnects the raw water inlet and the raw water outlet;

[0482] Step 120, control the auxiliary driving part to drive the auxiliary valve core to rotate until the current auxiliary pulse number is equal to the target auxiliary pulse number, and then control the auxiliary driving part to stop;

[0483] Step 110, control the main drive unit to drive the main valve core to rotate until the current main pulse number reaches the first main pulse number or the third main pulse number, and then control the main drive unit to stop.

[0484] Execute in order of step 130, step 120, and step 110, first switch the main valve core to the second main valve position to reduce the rotational resistance of the water flow to the auxiliary valve core, then switch the auxiliary valve core to the corresponding target auxiliary valve position, and finally switch the main valve core to the corresponding target main valve position, wherein the target main valve position is the main valve position corresponding to each functional mode excluding the second main valve position.

[0485] The current main pulse number is equal to the first main pulse number, the second main pulse number or the third main pulse number, corresponding to the main drive unit rotating to the first main angle, the second main angle or the third main angle relative to the main initial position, and the first main angle, the second main angle and the third main angle are sequentially arranged along the circumference of the main drive unit. That is, the main drive unit rotates forward and sequentially passes through the first main angle, the second main angle and the third main angle.

[0486] In some cases, the first main angle coincides with the main initial position, which can be understood as the first main angle being 0° or other initial values.

[0487] The difference between the second main angle and the first main angle is less than or equal to 180° and greater than or equal to 60°, so as to increase the opening area of ​​the main valve water inlet of the main valve core and increase the water flow area. And / or, the difference between the third main angle and the second main angle is less than or equal to 120° and greater than or equal to 30°, so as to meet the functional requirements of the main valve core.

[0488] Combination Figures 1 to 42 In the soft water valve shown, the raw water outlet is always connected to the main chamber, the soft water outlet is always connected to the auxiliary chamber, and the target auxiliary pulse number includes the first auxiliary pulse number, the second auxiliary pulse number, the third auxiliary pulse number and the fourth auxiliary pulse number.

[0489] The following is an example of the control process of each functional mode of the soft water valve.

[0490] refer to Figures 1 to 62 As shown, the control method of the soft water valve also includes:

[0491] Determine that the current main pulse number is equal to the first main pulse number, the main valve core connects the main chamber with the raw water inlet, and forms the main preset flow path.

[0492] Determine that the current auxiliary pulse number is equal to the first auxiliary pulse number, the auxiliary valve core is connected to the soft water inlet and the auxiliary chamber to form an auxiliary preset flow path, and the soft water valve is in the water making mode;

[0493] or,

[0494] Determine that the current main pulse number is equal to the third main pulse number, the main valve core connects the auxiliary chamber with the raw water inlet, the main chamber connects the raw water outlet with the drain port of the valve housing, and the main preset flow path is formed.

[0495] Determine that the current auxiliary pulse number is equal to the first auxiliary pulse number, the auxiliary valve core is connected to the soft water inlet and the auxiliary chamber to form an auxiliary preset flow path, and the soft water valve is in the backwash mode;

[0496] The backwash mode and the water production mode can share the first auxiliary valve position, and both are rotated to the first auxiliary valve pulse number.

[0497] or,

[0498] Determine that the current main pulse number is equal to the first main pulse number, the main valve core connects the main chamber with the raw water inlet, and forms the main preset flow path.

[0499] Determine that the current auxiliary pulse number is equal to the second auxiliary pulse number, the auxiliary valve core is connected to the soft water inlet and the auxiliary chamber, the auxiliary valve core is connected to the soft water inlet and the salt tank connection port of the valve housing, and an auxiliary preset flow path is formed, and the soft water valve is in the water injection mode;

[0500] or,

[0501] Determine that the current main pulse number is equal to the third main pulse number, the main valve core connects the auxiliary chamber with the raw water inlet, the main chamber connects the raw water outlet with the drain port of the valve housing, and the main preset flow path is formed.

[0502] Determine that the current auxiliary pulse number is equal to the third auxiliary pulse number, the auxiliary valve core is connected to the auxiliary chamber and the salt tank connection port of the valve housing, the auxiliary valve core is connected to the salt tank connection port and the soft water inlet, forming an auxiliary preset flow path, and the soft water valve is in the salt absorption mode;

[0503] or,

[0504] Determine that the current main pulse number is equal to the first main pulse number, the main valve core connects the main chamber with the raw water inlet, and forms the main preset flow path.

[0505] It is determined that the current auxiliary pulse number is equal to the fourth auxiliary pulse number, the auxiliary valve core is connected to the soft water inlet and the drain outlet of the valve housing to form an auxiliary preset flow path, and the soft water valve is in the positive wash mode.

[0506] For the above modes, please refer to the contents of the soft water valve.

[0507] The current number of auxiliary pulses is equal to the first number of auxiliary pulses, the second number of auxiliary pulses, the third number of auxiliary pulses or the fourth number of auxiliary pulses, corresponding to the auxiliary driving unit rotating to the first auxiliary angle, the second auxiliary angle, the third auxiliary angle or the fourth auxiliary angle relative to the auxiliary initial position, and the angular position of the auxiliary driving unit is accurately determined by the number of pulses.

[0508] refer to Fig.61As shown, the first auxiliary angle, the second auxiliary angle, the third auxiliary angle or the fourth auxiliary angle are sequentially arranged along the circumferential direction of the auxiliary driving part, and the first auxiliary angle, the second auxiliary angle, the third auxiliary angle or the fourth auxiliary angle correspond to the first auxiliary valve position, the second auxiliary valve position, the third auxiliary valve position and the fourth auxiliary valve position one by one, that is, Fig.61 The numbers 1 to 4 on the left correspond one to one.

[0509] The normal state of the soft water valve is the water production mode, and the auxiliary drive unit corresponds to the first auxiliary angle (in some cases, the auxiliary initial position); when the softening device needs to be regenerated, it switches from the water production mode to the water injection mode, and the auxiliary drive unit corresponds to the second auxiliary angle; after the water injection mode, the soft water valve is adjusted to the water production mode (which can be understood as the salt melting mode) again to maintain the water production function, and the auxiliary drive unit corresponds to the first auxiliary angle, so that the salt in the salt box is fully dissolved, and after the salt melting is completed; it is adjusted to the salt absorption mode, corresponding to the third main valve position; after the salt absorption is completed, it is adjusted to the backwash mode, and the auxiliary drive unit corresponds to the first auxiliary angle; after the backwash is completed, it is adjusted to the forward wash mode, and the auxiliary drive unit corresponds to the fourth auxiliary angle. Combined with the above, the position of the auxiliary drive unit is switched from the first auxiliary angle to other angles to ensure the position accuracy of the auxiliary valve core.

[0510] The difference between the fourth secondary angle and the third secondary angle is less than or equal to 180° and greater than or equal to 100°;

[0511] and / or, a difference between the third secondary angle and the second secondary angle is less than or equal to 90° and greater than or equal to 40°;

[0512] And / or, a difference between the second secondary angle and the first secondary angle is less than or equal to 90 degrees and greater than or equal to 30 degrees.

[0513] It should be noted that the above-mentioned first main pulse number, second main pulse number, third main pulse number, first auxiliary pulse number, second auxiliary pulse number, third auxiliary pulse number, and fourth auxiliary pulse number represent the number of pulses required for the main drive unit (or auxiliary drive unit) to rotate from the current position to the target position, and are not limited to fixed values. Based on the different current positions of the main drive unit and the auxiliary drive unit, the corresponding main pulse number and auxiliary pulse number also change accordingly. Of course, if the main drive unit (or auxiliary drive unit) returns to the initial position (main initial position or auxiliary initial position), and then rotates from the initial position to the corresponding target position, the aforementioned number of pulses can be understood as a fixed value.

[0514] Similarly, reference Fig.62 As shown, the auxiliary drive unit can rotate to five auxiliary angles, corresponding to the numbers 1 to 5 on the left side of the figure. Figures 45 to 60 Soft water valve shown.

[0515] It can be understood that in step 110, the step of obtaining the target number of main pulses required for the main driving unit to drive the main valve core to rotate to the target main valve position includes:

[0516] Step 111, controlling the main driving part to rotate to the main initial position, and then obtaining the target main pulse number required for the main driving part to drive the main valve core to rotate from the main initial position to the target main valve position;

[0517] Based on the main current position of the main drive unit being the main initial position, the main drive unit rotates from the main initial position until the main valve core rotates to the target main valve position; based on the main current position of the main drive unit being not the main initial position, the main drive unit rotates from the main current position to the main initial position, and then from the main initial position to the target position, so that the main valve core is located at the target main valve position.

[0518] and / or,

[0519] It can also be understood that in step 120, the step of obtaining the target number of auxiliary pulses required for the auxiliary driving unit to drive the auxiliary valve core to rotate to the target auxiliary valve position includes:

[0520] Step 121 , controlling the auxiliary driving part to rotate to the auxiliary initial position, and then obtaining the target auxiliary pulse number required for the auxiliary driving part to drive the auxiliary valve core to rotate from the auxiliary initial position to the target auxiliary valve position.

[0521] Similarly, based on the auxiliary current position of the auxiliary drive unit being the auxiliary initial position, the auxiliary valve core is directly rotated to the target auxiliary valve position. Based on the auxiliary current position of the auxiliary drive unit being not the auxiliary initial position, the auxiliary drive unit is controlled to rotate to the auxiliary initial position and then to the target position so that the auxiliary valve core is located at the target auxiliary valve position.

[0522] It can also be understood that in step 111, the step of controlling the main driving part to rotate to the main initial position includes:

[0523] When a main trigger signal of the main trigger component is obtained, it is determined that the main driving part rotates to the main initial position, wherein when the main driving part rotates to the main initial position, the main trigger component sends a main trigger signal;

[0524] and / or,

[0525] In step 121, the step of controlling the auxiliary driving part to rotate to the auxiliary initial position includes:

[0526] When the auxiliary trigger signal of the auxiliary trigger element is obtained, it is determined that the auxiliary driving part rotates to the auxiliary initial position, wherein when the auxiliary driving part rotates to the auxiliary initial position, the auxiliary trigger element sends out the auxiliary trigger signal.

[0527] The main trigger and the auxiliary trigger can refer to the description of the above-mentioned soft water valve. The main trigger signal and the auxiliary trigger signal can be high level or low level, can be corresponding digital signals, and so on.

[0528] Based on the acquisition of the main trigger signal and the auxiliary trigger signal, the position adjustment is performed to accurately determine the main initial position and the auxiliary initial position.

[0529] It is understandable that the control method of the soft water valve also includes:

[0530] It is determined that the main driving part is located at the main initial position and the auxiliary driving part is located at the auxiliary initial position, and it is determined that the soft water valve is in the water making mode.

[0531] The water-making mode coincides with the two initial positions, which can reduce the number of position switching times of the main drive unit and the auxiliary drive unit and simplify the structure of the soft water valve.

[0532] It is understandable that the control method of the soft water valve also includes:

[0533] Step 140, receiving an initial start signal;

[0534] Step 150, obtaining the actual main pulse number of the main driving unit for one rotation and the designed main pulse number of the main driving unit for one rotation, and correcting the current main pulse number of the main driving unit based on the deviation between the actual main pulse number and the designed main pulse number.

[0535] The actual main pulse number of the main drive unit is detected, and the current main pulse number is corrected based on the deviation between the actual main pulse number and the main design pulse number. The current main pulse number is compensated to make the current main pulse number during the movement of the main drive unit consistent with the current actual main pulse number.

[0536] For example, if the main design pulse number is 1000 and the main actual pulse number is 900, the actual pulse number of the main drive unit for one rotation can be used to calculate the number of pulses required to reach the corresponding angle; or, based on the ratio of the main design pulse number to the main actual pulse number, the deviation ratio can be calculated, and the product of the current actual main pulse number and the deviation ratio is recorded as the current main pulse number, thereby achieving compensation for the current main pulse number and ensuring the accuracy of the position control of the main valve plate.

[0537] and / or,

[0538] The control method of the soft water valve also includes:

[0539] Step 140, receiving an initial start signal;

[0540] Step 160 , obtaining the auxiliary actual pulse number of the auxiliary driving unit for one rotation and the auxiliary designed pulse number of the auxiliary driving unit for one rotation, and correcting the current auxiliary pulse number of the auxiliary driving unit based on the deviation between the auxiliary actual pulse number and the auxiliary designed pulse number.

[0541] Similarly, the current number of auxiliary pulses can be calibrated with reference to the above-mentioned calibration method of the current number of main pulses to ensure the accuracy of the position control of the auxiliary valve plate.

[0542] In combination with the above, in the control method of the soft water valve, the micro switch is fixed at the initial position. When the power is initially turned on, the output shaft (the output shaft of the main valve assembly or the auxiliary valve assembly) is controlled to move counterclockwise in sequence until the output shaft touches the micro switch and is pressed down to turn on the micro switch, then a trigger signal is sent. After the control system collects the trigger signal, the output shaft is controlled to stop moving, and then the collected number of pulses is cleared, and the current position is set as the initial position. The above steps are repeated to complete the motor movement of the main chamber and the auxiliary chamber in sequence, thereby completing the confirmation of the initial calculated position of the pulse.

[0543] After the initial position movement is completed, the water path of the soft water valve is in the water making mode, and the initial position is defined as position 1 of the main chamber and the auxiliary chamber respectively.

[0544] The main function of the water injection position during the regeneration process is to introduce a certain amount of water (soft water or raw water) into the salt tank.

[0545] refer to Fig.62 As shown, based on the initial position, the output shaft of the control sub-valve assembly moves clockwise toward position 2. The angle between position 4 and position 1 is A. Assuming that the number of pulses obtained by rotating the output shaft 360° is M1, the output shaft is controlled to rotate while collecting the number of pulse outputs of the motor N1. If it is N1=M1*(A / 360) more than the current position, the output shaft of the control sub-valve assembly stops rotating, completing the positioning of the water injection position, and water can enter the salt tank.

[0546] The molten salt mode during the regeneration process is the same as the water production mode. On the basis of the positioning of the water injection mode, the output shaft of the auxiliary valve assembly is controlled to rotate counterclockwise toward position 1. Based on the angle A between position 1 and position 4, it is assumed that the number of pulses obtained by rotating the output shaft 360° is M1. At this time, the output shaft is controlled to rotate while collecting the number of pulse outputs of the motor N1. If it is less than the current position by N1=M1*(A / 360), the output shaft of the auxiliary valve assembly is controlled to stop rotating to melt the salt.

[0547] On the basis of the positioning of the molten salt mode, when switching to the salt absorption mode, first control the output shaft of the main valve assembly to rotate clockwise toward position 3, the angle B between position 1 and position 3, control the output shaft to rotate to a position with N1=M1*(B / 360) more pulses than the current position and stop, so as to realize the passage from the resin tank to the sewage outlet; then control the output shaft of the auxiliary valve assembly to rotate clockwise toward position 3, the angle C between position 1 and position 2, control the output shaft to rotate to a position with N1=M1*(C / 360) more pulses than the current position and stop, so as to realize the water conduction from the salt box to the main chamber, and realize the absorption of saturated brine from the salt box and injection into the resin tank.

[0548] On the basis that the salt absorption position has been positioned, when switching to the backwash mode, the output shaft of the auxiliary valve assembly is controlled to rotate counterclockwise toward position 1. The angle D between position 1 and position 5 controls the output shaft to rotate to a position where the number of pulses is N1=M1*(D / 360) less than the current position and stops. The main valve assembly is in position 3, which is consistent with the salt absorption mode. The channel for absorbing brine from the salt tank is closed, while the sewage outlet is kept open to realize the backwash function.

[0549] On the basis that the backwash position has been positioned, when switching to the forward wash mode, first control the output shaft of the main valve assembly to move counterclockwise toward position 1. It can be seen that position 3 is B away from position 1, and the output shaft is controlled to rotate to a position where the number of pulses is N1=M1*(B / 360) less than the current position and stops; the output shaft of the auxiliary valve assembly rotates clockwise toward position 5, and the angle between position 1 and position 5 is E, and the output shaft is controlled to rotate to a position where the number of pulses is N1=M1*(E / 360) more than the current position and stops; the forward wash function is realized.

[0550] Finally, when the maximum flushing time of the forward wash mode is reached, the initial position positioning method is executed again to return the valve head to the initial normal soft water supply state, thereby completing the entire regeneration process control.

[0551] It can also be understood that the control method of the soft water valve also includes:

[0552] Step 170, determining that the soft water output of the soft water valve is lower than a first preset value;

[0553] If the soft water output is lower than the ...

Claims

1. A soft water valve, characterized in that: include: A valve housing, the valve housing comprising a raw water inlet, a soft water outlet, a main chamber, a secondary chamber, a raw water outlet, a soft water inlet and a salt box connection port, the raw water outlet and the soft water inlet can be connected via a softening device, and the salt box connection port is used to connect to the salt box; A main valve assembly, the main valve assembly comprising a main valve core and a main driving part for driving the main valve core to move; A secondary valve assembly, the secondary valve assembly comprising a secondary valve core and a secondary driving part for driving the secondary valve core to move; The main valve core is located at the first main valve position, and the raw water inlet is connected to the raw water outlet through the main valve core; the auxiliary valve core is located at the second auxiliary valve position, and the soft water inlet is connected to the salt tank connecting port through the auxiliary valve core, and the soft water valve is in the water injection mode. In the water injection mode, the raw water inlet, the main valve core, the raw water outlet, the soft water inlet, the auxiliary valve core and the salt tank connecting port form a connecting flow path.

2. The soft water valve according to claim 1, characterized in that: One of the raw water inlet and the raw water outlet is always connected to the main chamber, and the other of the raw water inlet and the raw water outlet is connected to the main chamber through the main valve core. One of the soft water inlet and the auxiliary chamber is always connected to the soft water outlet, and the other of the soft water inlet and the auxiliary chamber and the soft water outlet can be regulated on and off by the auxiliary valve core.

3. The soft water valve according to claim 2, characterized in that: In the water injection mode, the raw water inlet is always connected to the main chamber, the raw water outlet is connected to the main chamber through the main valve core, the soft water outlet is always connected to the soft water inlet, and the auxiliary chamber is connected to the salt box connection port through the auxiliary valve core.

4. The soft water valve according to claim 2, characterized in that: In the water injection mode, the raw water outlet is always connected to the main chamber, the raw water inlet is connected to the main chamber through the main valve core, the secondary chamber is always connected to the soft water outlet, and the soft water inlet is connected to the salt box connection port through the secondary valve core.

5. The soft water valve according to claim 4, characterized in that: The soft water inlet is communicated with the auxiliary cavity through the auxiliary valve core, and the soft water inlet is communicated with the soft water outlet through the auxiliary cavity.

6. The water softening valve according to any one of claims 1 to 5, characterized in that: It also includes at least one of a main triggering component and an auxiliary triggering component, wherein the main triggering component is located on the movement path of the main driving part, and the auxiliary triggering component is located on the movement path of the auxiliary driving part.

7. The water softening valve according to any one of claims 1 to 5, characterized in that: The main valve assembly further includes a main encoder connected to the main drive unit, and the auxiliary valve assembly further includes an auxiliary encoder connected to the auxiliary drive unit. At least one of the main encoder and the auxiliary encoder is configured as an AB phase encoder.

8. A control method for a soft water valve, characterized in that: Applicable to the soft water valve according to any one of claims 1 to 7, include: Controlling the main driving part to rotate to a first main angle to drive the main valve core to move to the first main valve position; The auxiliary driving part is controlled to rotate to a second auxiliary angle to drive the auxiliary valve core to move to a second auxiliary valve position, so that the soft water valve is switched to a water injection mode.

9. The control method of a soft water valve according to claim 8, characterized in that: Before the step of controlling the auxiliary driving part to rotate to the second auxiliary angle to drive the auxiliary valve core to move to the second auxiliary valve position, the method further includes: Controlling the main driving part to rotate to a second main angle to drive the main valve core to move to a second main valve position, in which the main valve core disconnects the raw water inlet and the raw water outlet; After the step of controlling the auxiliary driving part to rotate to the second auxiliary angle to drive the auxiliary valve core to move to the second auxiliary valve position, The main driving part is controlled to rotate to a first main angle to drive the main valve core to move to a first main valve position.

10. The control method of a soft water valve according to claim 9, characterized in that: The main driving part is set to a main initial angle at the main initial position, and the included angle between the second main angle and the main initial angle is greater than or equal to 100° and less than or equal to 180°.

11. The control method of a soft water valve according to claim 9, characterized in that: In the second main valve position, the main valve core disconnects the raw water inlet and the secondary chamber.

12. The control method of a soft water valve according to claim 8, characterized in that: In the step of controlling the main driving part to rotate to the first main angle to drive the main valve core to move to the first main valve position, Controlling the main driving part to rotate to a main initial position, and then controlling the main driving part to rotate from the main initial position to the first main angle; And / or, in the step of controlling the auxiliary driving part to rotate to a second auxiliary angle to drive the auxiliary valve core to move to a second auxiliary valve position, The auxiliary driving part is controlled to rotate to the auxiliary initial position, and then the auxiliary driving part is controlled to rotate from the auxiliary initial position to the second auxiliary angle.

13. The control method of a soft water valve according to claim 12, characterized in that: In the step of controlling the main driving part to rotate to the main initial position, Upon receiving a main trigger signal from a main trigger member, determining that the main driving part rotates to the main initial position, wherein when the main driving part moves to the main initial position, the main trigger member sends out the main trigger signal; And / or, in the step of controlling the auxiliary driving part to rotate to the auxiliary initial position, When the auxiliary trigger signal of the auxiliary trigger member is received, it is determined that the auxiliary driving part rotates to the auxiliary initial position, wherein when the auxiliary driving part moves to the auxiliary initial position, the auxiliary trigger member sends the auxiliary trigger signal.

14. The control method of a soft water valve according to claim 12, characterized in that: In the step of controlling the main driving part to rotate from the main initial position to the first main angle, include, Obtaining the first main pulse number of the main driving part required to rotate from the main initial position to the first main angle, controlling the main driving unit to rotate the first main pulse number to reach the first main angle; The step of re-controlling the auxiliary driving part to rotate from the auxiliary initial position to the second auxiliary angle includes: Obtain the second secondary pulse number of the secondary driving part required to rotate from the secondary initial position to the second secondary angle, The auxiliary driving unit is controlled to rotate by the second auxiliary pulse number to reach the second auxiliary angle.

15. The control method of a soft water valve according to claim 8, characterized in that: The auxiliary driving part is set to a auxiliary initial angle at the auxiliary initial position, and an included angle between the second auxiliary angle and the auxiliary initial angle is less than or equal to 90° and greater than or equal to 30°.

16. The control method of a soft water valve according to claim 8, characterized in that: The step of controlling the main driving part to rotate to a first main angle to drive the main valve core to move to a first main valve position includes: Obtain the main current angle of the main driving part, Determine a current main angle from the main current angle to the first main angle, and control the main driving unit to rotate the current main angle in the direction of the first main angle to reach the first main angle; and / or, The step of controlling the auxiliary driving part to rotate to a second auxiliary angle to drive the auxiliary valve core to move to a second auxiliary valve position includes: Obtain the secondary current angle of the secondary driving unit, Drive the secondary current angle to the current secondary angle of the second secondary angle, and control the secondary driving unit to rotate the current secondary angle in the direction of the second secondary angle to reach the second secondary angle.

17. The control method of a soft water valve according to claim 16, characterized in that: In the step of obtaining the main current angle of the main driving unit, By acquiring the current mode of the soft water valve, determining the angular position of the main driving part corresponding to the current mode as the main current angle; And / or, in the step of obtaining the auxiliary current angle of the auxiliary driving unit, By acquiring the current mode of the soft water valve, the angular position of the auxiliary driving part corresponding to the current mode is determined as the auxiliary current angle.

18. The control method of a soft water valve according to claim 8, characterized in that: Based on the raw water inlet being connected to the main chamber through a raw water channel, the soft water outlet being connected to the secondary chamber through a soft water channel, a bypass valve is provided between the raw water channel and the soft water channel; Also includes: Determine that the soft water valve is switched to the water injection mode, Receiving the target outlet water hardness of the soft water outlet, the soft water hardness of the soft water inlet, and the raw water hardness of the raw water inlet; In combination with the soft water hardness and the raw water hardness, the ratio of the soft water outlet flow rate to the bypass valve outlet flow rate is determined, the opening of the bypass valve is adjusted, and the soft water outlet is controlled to discharge water at the target outlet water hardness, wherein the soft water outlet flow rate is measured by a flowmeter upstream of the bypass valve.

19. A water softener, characterized in that: It comprises a softening device and the soft water valve according to any one of claims 1 to 7, wherein the softening device connects the raw water outlet with the soft water inlet.

20. A water softener, characterized in that: It comprises a controller, wherein the controller is used to execute the control method of the soft water valve according to any one of claims 8 to 18.

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