Water softening valve, control method of water softening valve, and water softener

Abstract

The application relates to the field of water treatment, and provides a soft water valve, a control method of the soft water valve and a soft water machine. The soft water valve comprises a valve shell, a main valve assembly and a secondary valve assembly. The valve shell comprises a raw water inlet, a soft water outlet, a main cavity, a secondary cavity, a raw water outlet, a soft water inlet, a salt tank connecting port and a blowdown port. The main valve assembly is connected to the valve shell and comprises a main valve core and a main driving part for driving the main valve core to move. The secondary valve assembly is connected to the valve shell and comprises a secondary valve core and a secondary driving part for driving the secondary valve core to move. In a backwashing mode, the main valve core is at a third main valve position, the raw water inlet is communicated with the secondary cavity, the raw water inlet is disconnected with the raw water outlet, the raw water outlet is communicated with the blowdown port through the main valve core, the secondary valve core is at a first secondary valve position, the secondary cavity and the soft water inlet are communicated through the secondary valve core, and the raw water inlet, the secondary cavity, the soft water inlet, the raw water outlet and the blowdown port form a communicated flow path. The soft water valve provided by the application can realize the backwashing function through the cooperation of the double cavities and the double valves.

Description

TECHNICAL FIELD

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

[0002] With the continuous improvement of people's living standards, the requirements for daily water are also getting higher and higher. There are a large number of calcium and magnesium ions in the water used by residents, and long-term use of hard water has certain harm to the body. For example, if clothes are washed with hard water for a long time, the clothes will turn yellow and lack luster. The water pipeline of residents will be blocked by scale, and some heating equipment will be affected by scale, which will affect the heat exchange efficiency and damage the equipment over a long period of time. Reducing or removing calcium and magnesium ions in water, so that hard water becomes soft water, has many benefits for people's life, such as taking a shower with soft water, which does not dry the skin, and using soft water for skin care, which makes the skin smoother. The water heater also improves the heat exchange efficiency and reduces the maintenance cost.

[0003] In related technologies, soft water equipment is usually used to remove calcium and magnesium ions in water, and the soft water equipment is usually equipped with a soft water valve. The soft water valve has concentrated functions and a complex structure, and the waterway in the soft water valve is complex, so the structure of the soft water valve needs to be optimized. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the related art. To this end, the present application provides a soft water valve, which realizes the backwashing function through the structure of double-cavity double-valve and the cooperation of double-cavity double-valve.

[0005] The present application also provides a control method of the soft water valve.

[0006] The present application also provides a water softener.

[0007] According to the soft water valve of the first aspect of the present application, the soft water valve comprises:

[0008] The valve housing comprises a raw water inlet, a soft water outlet, a main cavity, a secondary cavity, a raw water outlet, a soft water inlet, a salt tank connecting port and a blowdown port; the raw water outlet and the soft water inlet are communicated through a softening device, and the salt tank connecting port is used to connect a salt tank;

[0009] The main valve assembly is connected to the valve housing, and the main valve assembly comprises a main valve core and a main driving part for driving the main valve core to move;

[0010] The secondary valve assembly is connected to the valve housing, and the secondary valve assembly comprises a secondary valve core and a secondary driving part for driving the secondary valve core to move;

[0011] In the backwash mode, the raw water inlet is communicated with the main cavity through the main valve core, the raw water inlet is communicated with the auxiliary cavity through the main valve core, the raw water outlet is communicated with the main cavity through the main valve core, the auxiliary cavity is communicated with the soft water inlet through the auxiliary valve core, and the soft water outlet is communicated with the auxiliary cavity.

[0012] In the backwash mode, the raw water inlet is communicated with the main cavity through the main valve core, the raw water inlet is communicated with the auxiliary cavity through the main valve core, the raw water outlet is communicated with the main cavity through the main valve core, the auxiliary cavity is communicated with the soft water inlet through the auxiliary valve core, and the soft water outlet is communicated with the auxiliary cavity.

[0013] In the backwash mode, the raw water inlet is communicated with the main cavity through the main valve core, the raw water inlet is communicated with the auxiliary cavity through the main valve core, the raw water outlet is communicated with the main cavity through the main valve core, the auxiliary cavity is communicated with the soft water inlet through the auxiliary valve core, and the soft water outlet is communicated with the auxiliary cavity.

[0014] In the backwash mode, the raw water inlet is communicated with the main cavity through the main valve core, the raw water inlet is communicated with the auxiliary cavity through the main valve core, the raw water outlet is communicated with the main cavity through the main valve core, the auxiliary cavity is communicated with the soft water inlet through the auxiliary valve core, and the soft water outlet is communicated with the auxiliary cavity.

[0015] In the backwash mode, the raw water inlet is communicated with the main cavity through the main valve core, the raw water inlet is communicated with the auxiliary cavity through the main valve core, the raw water outlet is communicated with the main cavity through the main valve core, the auxiliary cavity is communicated with the soft water inlet through the auxiliary valve core, and the soft water outlet is communicated with the auxiliary cavity.

[0016] In the backwash mode, the raw water inlet is communicated with the main cavity through the main valve core, the raw water inlet is communicated with the auxiliary cavity through the main valve core, the raw water outlet is communicated with the main cavity through the main valve core, the auxiliary cavity is communicated with the soft water inlet through the auxiliary valve core, and the soft water outlet is communicated with the auxiliary cavity.

[0017] The soft water valve according to the embodiment of the present application further comprises at least one of a main trigger and an auxiliary trigger, the main trigger is located on the movement path of the main driving part, and the auxiliary trigger is located on the movement path of the auxiliary driving part.

[0018] The soft water valve according to the embodiment of the present application further comprises a main encoder connected with the main driving part, and an auxiliary encoder connected with the auxiliary driving part, at least one of the main encoder and the auxiliary encoder is an AB phase encoder.

[0019] The control method of the soft water valve according to the second aspect of the embodiment of the present application is applied to the soft water valve as claimed in any one of the above, and comprises the following steps.

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

[0021] controlling the auxiliary driving part to rotate to a first auxiliary angle to drive the auxiliary valve core to move to a first auxiliary valve position, so that the water softening valve is switched to a backwashing mode.

[0022] According to the control method of the water softening valve, the main driving part is set to a main initial angle at a main initial position, and an included angle from the third main angle to the main initial angle is greater than or equal to 50° and less than or equal to 90°.

[0023] According to the control method of the water softening valve, the step of controlling the main driving part to rotate to a third main angle to drive the main valve core to move to a third main valve position comprises:

[0024] obtaining a main current angle of the main driving part;

[0025] determining a current main included angle from the main current angle to the third main angle, controlling the main driving part to rotate to the third main angle by the current main included angle, so as to reach the third main angle;

[0026] and / or,

[0027] The step of controlling the auxiliary driving part to rotate to a first auxiliary angle to drive the auxiliary valve core to move to a first auxiliary valve position comprises:

[0028] obtaining an auxiliary current angle of the auxiliary driving part;

[0029] driving a current auxiliary included angle from the auxiliary current angle to the first auxiliary angle, and controlling the auxiliary driving part to rotate to the first auxiliary angle by the current auxiliary included angle, so as to reach the first auxiliary angle.

[0030] According to the control method of the water softening valve, in the step of obtaining a main current angle of the main driving part,

[0031] obtaining a current mode of the water softening valve, and determining that an angle position of the main driving part corresponding to the current mode is the main current angle;

[0032] and / or, in the step of obtaining an auxiliary current angle of the auxiliary driving part,

[0033] obtaining a current mode of the water softening valve, and determining that an angle position of the auxiliary driving part corresponding to the current mode is the auxiliary current angle.

[0034] According to the control method of the water softening valve, the control method further comprises:

[0035] acquiring a main current pulse number corresponding to a motion of the main driving part from a main initial position to a main current angle of the main driving part, and acquiring a third main pulse number required for the main driving part to move from the main initial position to the third main angle,

[0036] controlling the main driving part to move a difference pulse number between the main current pulse number and the third main pulse number, so as to reach the third main angle;

[0037] and / or,

[0038] acquiring a vice current pulse number corresponding to a motion of the vice driving part from a vice initial position to a vice current angle of the vice driving part, and acquiring a first vice pulse number required for the vice driving part to move from the vice initial position to the first vice angle,

[0039] controlling the vice driving part to move a difference pulse number between the vice current pulse number and the first vice pulse number, so as to reach the first vice angle.

[0040] According to the control method of the soft water valve, before the step of controlling the vice driving part to rotate to the first vice angle to drive the vice valve core to move to the first vice valve position, the method further comprises:

[0041] 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, wherein the main valve core disconnects the raw water inlet and the raw water outlet at the second main valve position;

[0042] after the step of controlling the vice driving part to rotate to the first vice angle to drive the vice valve core to move to the first vice valve position,

[0043] controlling the main driving part to rotate to a third main angle to drive the main valve core to move to a third main valve position.

[0044] According to the control method of the soft water valve, the main driving part is set to a main initial angle at a main initial position, and an included angle between the third main angle and the main initial angle is greater than or equal to 50° and less than or equal to 90°.

[0045] According to the control method of the soft water valve, the main valve core disconnects the raw water inlet and the vice cavity at the second main valve position.

[0046] According to the control method of the soft water valve, in the step of controlling the main driving part to rotate to the third main angle to drive the main valve core to move to the third main valve position,

[0047] controlling the main driving part to rotate to the main initial position, and then controlling the main driving part to rotate from the main initial position to the third main angle;

[0048] and / or, the step of controlling the sub-driving part to rotate to a first sub-angle to drive the sub-spool to move to a first sub-valve position,

[0049] controlling the sub-driving part to rotate to a sub-initial position, and then controlling the sub-driving part to rotate from the sub-initial position to the first sub-angle.

[0050] According to the control method of the soft water valve, in the step of controlling the main driving part to rotate to a main initial position,

[0051] Upon receiving a main trigger signal of a main trigger piece, the main driving part is determined to rotate to the main initial position, wherein the main trigger piece emits the main trigger signal when the main driving part moves to the main initial position;

[0052] and / or, the step of controlling the sub-driving part to rotate to a sub-initial position,

[0053] Upon receiving a sub-trigger signal of a sub-trigger piece, the sub-driving part is determined to rotate to the sub-initial position, wherein the sub-trigger piece emits the sub-trigger signal when the sub-driving part moves to the sub-initial position.

[0054] According to the control method of the soft water valve, in the step of controlling the main driving part to rotate from the main initial position to a third main angle,

[0055] obtaining a third main pulse number required for the main driving part to rotate from the main initial position to the third main angle,

[0056] controlling the main driving part to rotate the third main pulse number to reach the third main angle;

[0057] in the step of controlling the sub-driving part to rotate from the sub-initial position to the first sub-angle,

[0058] obtaining a first sub-pulse number required for the sub-driving part to rotate from the sub-initial position to the first sub-angle,

[0059] controlling the sub-driving part to rotate the first sub-pulse number to reach the first sub-angle.

[0060] According to the soft water machine of the third aspect of the present application, the soft water machine comprises a softening device and the soft water valve according to any one of the above, and the softening device is connected to the raw water outlet and the soft water inlet.

[0061] According to the soft water machine of the present application, the structure is simple and convenient for users to take water.

[0062] The soft water machine according to the fourth aspect of the present application comprises a controller, which is configured to execute the control method of the soft water valve according to any one of the preceding aspects.

[0063] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0064] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the drawings needed to be used in the embodiments or the related art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0065] Figure 1 is a perspective structural schematic view of a soft water valve provided by the embodiment of the present application;

[0066] Figure 2 is one of the bottom view perspective structural schematic views of the soft water valve provided by the embodiment of the present application;

[0067] Figure 3 is one of the bottom view perspective structural schematic views of the soft water valve provided by the embodiment of the present application;

[0068] Figure 4 is the second bottom view perspective structural schematic view of the soft water valve provided by the embodiment of the present application;

[0069] Figure 5 is the second bottom view perspective structural schematic view of the soft water valve provided by the embodiment of the present application;

[0070] Figure 6 is a side rear view perspective structural schematic view of the soft water valve provided by the first embodiment of the present application, wherein the valve shell in the figure is not installed with the main valve assembly and the auxiliary valve assembly;

[0071] Figure 7 is a structural schematic view of the main valve assembly provided by the embodiment of the present application;

[0072] Figure 8 is a structural schematic view of the auxiliary valve assembly provided by the embodiment of the present application;

[0073] Figure 9 is a perspective structural schematic view of the main valve core provided by the embodiment of the present application;

[0074] Figure 10 is a perspective structural schematic view of the auxiliary valve core provided by the embodiment of the present application;

[0075] Figure 11is a structural schematic view of a main static valve plate provided by an embodiment of the present application, which shows one side of the main static valve plate facing a main dynamic valve plate;

[0076] Figure 12 is a structural schematic view of a main dynamic valve plate provided by an embodiment of the present application, which shows one side of the main dynamic valve plate facing a main static valve plate;

[0077] Figure 13 is a structural schematic view of a secondary static valve plate provided by an embodiment of the present application, which shows one side of the secondary static valve plate facing a secondary dynamic valve plate;

[0078] Figure 14 is a structural schematic view of a secondary dynamic valve plate provided by an embodiment of the present application, which shows one side of the secondary dynamic valve plate facing a secondary static valve plate;

[0079] Figure 15 is a water path schematic view of a water softener provided by an embodiment of the present application;

[0080] Figure 16 is a water path schematic view of a water softener in a water making mode provided by an embodiment of the present application;

[0081] Figure 17 is a structural schematic view of a main valve core in a water making mode provided by an embodiment of the present application, in which the main valve core is in a first main valve position;

[0082] Figure 18 is a structural schematic view of a secondary valve core in a water making mode provided by an embodiment of the present application, in which the secondary valve core is in a first secondary valve position;

[0083] Figure 19 is a water path schematic view of a water softener in a water filling mode provided by an embodiment of the present application;

[0084] Figure 20 is a structural schematic view of a main valve core in a water filling mode provided by an embodiment of the present application, in which the main valve core is in a first main valve position;

[0085] Figure 21 is a structural schematic view of a secondary valve core in a water filling mode provided by an embodiment of the present application, in which the secondary valve core is in a second secondary valve position;

[0086] Figure 22 is a water path schematic view of a water softener in a salt sucking mode provided by an embodiment of the present application;

[0087] Figure 23 is a structural schematic view of a main valve core in a salt sucking mode provided by an embodiment of the present application, in which the main valve core is in a third main valve position;

[0088] Figure 24 is a structural schematic view of a secondary valve core in a salt sucking mode provided by an embodiment of the present application, in which the secondary valve core is in a third secondary valve position;

[0089] Figure 25 is a water path schematic diagram of the soft water machine in the backwash mode provided by the embodiment of the present application;

[0090] Figure 26 is a structure schematic diagram of the main valve core in the backwash mode, the main valve core being in the third main valve position;

[0091] Figure 27 is a structure schematic diagram of the auxiliary valve core in the backwash mode, the auxiliary valve core being in the first auxiliary valve position;

[0092] Figure 28 is a water path schematic diagram of the soft water machine in the forward wash mode provided by the embodiment of the present application;

[0093] Figure 29 is a structure schematic diagram of the main valve core in the forward wash mode, the main valve core being in the first main valve position;

[0094] Figure 30 is a structure schematic diagram of the auxiliary valve core in the forward wash mode, the auxiliary valve core being in the fourth auxiliary valve position;

[0095] Figure 31 is a water path schematic diagram of the soft water machine in the adjustable water hardness state provided by the embodiment of the present application;

[0096] Figure 32 is a structure schematic diagram of the soft water valve provided by the embodiment of the present application;

[0097] Figure 33 is a structure schematic diagram of the soft water valve provided by the embodiment of the present application, which is different from Figure 32 in that the position of the bypass movable valve plate is different, and the opening degree of the communication between the raw water channel and the soft water channel changes;

[0098] Figure 34 is a structure schematic diagram of the bypass valve provided by the embodiment of the present application;

[0099] Figure 35 is a structure schematic diagram of the soft water machine provided by the embodiment of the present application, which is used to take tap water;

[0100] Figure 36 is a three-dimensional structure schematic diagram of the soft water valve provided by the embodiment of the present application, in which the fluidic device is in a disassembled state, and the main driving part and the auxiliary driving part are not shown;

[0101] Figure 37 is a three-dimensional structure schematic diagram of the fluidic device provided by the embodiment of the present application;

[0102] Figure 38is a partial sectional structure schematic view of the jet flow device in the installed state in the valve shell, and the dotted line with an arrow in the figure shows the flow path of the raw water and the salt solution in the salt suction mode;

[0103] Figure 39 is a partial sectional structure schematic view of the jet flow device in the installed state in the valve shell, and the dotted line with an arrow in the figure shows the flow path of the raw water in the water injection mode;

[0104] Figure 40 is a structure schematic view of the soft water valve;

[0105] Figure 41 is a top view structure schematic view of the present application;

[0106] Figure 42 is a structure schematic view of the valve shell;

[0107] Figure 43 is a structure schematic view of the soft water machine, and the dotted arrow in the figure shows the water path in the softening device;

[0108] Figure 17 is a structure schematic view of the main valve core in the second main valve position;

[0109] In the above water path schematic view, the dotted arrow shows the water flow path; Figure 20 、 Figure 23 、 Figure 26 、 Figure 29 、 Figure 18 shows that the main static valve plate is above the main dynamic valve plate, and the view angle is from the main static valve plate to the main dynamic valve plate; Figure 21 、 Figure 24 、 Figure 27 、 Figure 30 、 Figure 45 shows that the secondary static valve plate is above the secondary dynamic valve plate, and the view angle is from the secondary static valve plate to the secondary dynamic valve plate.

[0110] Figure 46 is a structure schematic view of the soft water valve provided by another embodiment of the present application; Figure 47 is a structure schematic view of the valve shell provided by another embodiment of the present application;

[0111] Figure 48 is a structure schematic view of the main valve core provided by another embodiment of the present application;

[0112] Figure 49 is a structure schematic view of the secondary valve core provided by another embodiment of the present application;

[0113] Figure 50is a structural schematic view of a main static valve plate provided by another embodiment of the present application, which shows one side of the main static valve plate facing a main dynamic valve plate;

[0114] Figure 51 is a structural schematic view of a main dynamic valve plate provided by another embodiment of the present application, which shows one side of the main dynamic valve plate facing a main static valve plate;

[0115] Figure 52 is a structural schematic view of a secondary static valve plate provided by another embodiment of the present application, which shows one side of the secondary static valve plate facing a secondary dynamic valve plate;

[0116] Figure 53 is a structural schematic view of a secondary dynamic valve plate provided by another embodiment of the present application, which shows one side of the secondary dynamic valve plate facing a secondary static valve plate;

[0117] Figure 54 is a structural schematic view of a main valve core in a first main valve position provided by another embodiment of the present application;

[0118] Figure 55 is a structural schematic view of a main valve core in a first secondary valve position provided by another embodiment of the present application;

[0119] Figure 56 is a structural schematic view of a secondary valve core in a fourth secondary valve position corresponding to a water making mode provided by another embodiment of the present application;

[0120] Figure 57 is a structural schematic view of a main valve core in a third main valve position provided by another embodiment of the present application;

[0121] Figure 58 is a structural schematic view of a secondary valve core in a second secondary valve position corresponding to a salt sucking mode provided by another embodiment of the present application;

[0122] Figure 59 is a structural schematic view of a secondary valve core in a fifth secondary valve position corresponding to a backwashing mode provided by another embodiment of the present application;

[0123] Figure 60 is a structural schematic view of a secondary valve core in a third secondary valve position corresponding to a forward washing mode provided by another embodiment of the present application;

[0124] Figure 61 is a structural schematic view of a main valve core in a second main valve position provided by another embodiment of the present application;

[0125] Figure 62 is a structural schematic view of a cover plate provided by an embodiment of the present application, in which the numbers 1 to 4 on the left side represent four secondary valve positions of a secondary valve core, and the numbers 1 to 3 on the right side represent three main valve positions of a main valve core;

[0126] Figure 63 is a structural schematic diagram of the cover plate provided by another embodiment of the present application, wherein the numbers 1-5 on the left side represent five sub-valve positions of the sub-valve core, and the numbers 1-3 on the right side represent three main valve positions of the main valve core;

[0127] Figures 1 to 62 is a flow schematic diagram of the control method of the water softening valve provided by the embodiment of the present application.

[0128] Reference signs:

[0129] 110, valve housing; 111, main cavity; 112, sub-cavity; 113, raw water inlet; 114, soft water outlet; 115, blowdown outlet; 116, main cavity communication hole; 118, raw water outlet; 119, soft water inlet; 1110, salt tank connecting port; 1111, sub-cavity communication hole; 1112, water outlet flow channel; 1113, communication passage; 1114, blowdown passage; 1115, filtration passage; 1116, cover; 1117, blowdown groove; 1119, salt suction and water injection port; 1120, brine port; 1121, softening connecting port; 1124, second blowdown opening; 1125, first blowdown opening; 1132, bypass groove; 1133, cover member; 1134, first communication port; 1135, second communication port; 1136, mounting passage; 1137, cover plate; 1140, first housing part; 1141, second housing part; 1142, third housing part; 1143, softening connecting part;

[0130] 120, main valve assembly; 121, main movable valve piece; 1211, main valve water inlet; 1212, main valve first groove; 1213, main valve second groove; 122, main static valve piece; 1221, main valve water inlet hole; 1222, main valve blowdown hole; 1223, main-sub connection hole; 124, main valve core; 125, main driving part; 1251, main shaft assembly; 126, main water production flow channel; 127, first blowdown flow channel; 128, communication flow channel; 129, main trigger member;

[0131] 130, sub-valve assembly; 131, sub-movable valve piece; 1311, sub-valve first groove; 1312, sub-valve second groove; 1313, sub-valve third groove; 1314, sub-valve water inlet; 1315, sub-valve fourth groove; 1316, sub-valve fifth groove; 132, sub-static valve piece; 1321, sub-valve blowdown hole; 1322, softening connection hole; 1323, brine hole; 1324, salt suction and water injection hole; 134, sub-valve core; 1341, first salt suction flow channel; 1342, second salt suction flow channel; 135, sub-driving part; 1351, sub-shaft assembly; 136, sub-water production flow channel; 137, water injection flow channel; 138, forward washing flow channel; 139, sub-trigger member;

[0132] 321, main active valve plate; 3211, main valve water inlet; 3212, main valve first groove; 3213, main valve second groove; 3214, shielding part; 322, main static valve plate; 3221, main valve water inlet; 3222, main valve blowdown hole;

[0133] 331, sub-active valve plate; 3311, sub-valve first groove; 3312, sub-valve second groove; 3313, sub-valve third groove; 3314, sub-valve water inlet; 332, sub-static valve plate; 3321, sub-valve blowdown hole; 3322, softening connection hole; 3323, brine outlet; 3324, salt suction and water injection hole;

[0134] 110, valve shell; 316, main cavity inlet; 3111, communication channel; 3117, blowdown process hole; 3119, salt suction and water injection hole; 3120, brine hole; 3121, softening connection hole; 3124, second blowdown hole; 3125, first blowdown hole; 3126, water inlet hole; 140, bypass valve; 141, bypass active valve plate; 1411, first sector; 1412, second sector; 142, bypass static valve plate; 1421, first bypass hole; 1422, second bypass hole; 143, bypass motor; 144, bypass sealing ring;

[0135] 150, flow meter;

[0136] 160, fluidic device; 161, fluidic inlet; 162, fluidic outlet; 163, suction inlet; 164, first flow channel; 165, second flow channel; 166, fluidic flow limiting member; 190, softening device;

[0137] 200, salt tank. DETAILED DESCRIPTION

[0138] The embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0139] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise specified and limited, the meaning of "a plurality of", "a plurality of", "a plurality of" is two or more.

[0140] In the description of the embodiments of the present application, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0141] In the embodiments of the present application, unless otherwise specified and limited, the first feature is "on" or "under" the second feature can be 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 "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0142] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0143] In the embodiments of the present application, referenceFigures 1 to 6 As shown, a soft water valve applied to a soft water machine is provided, and the soft water valve is used to adjust the flow path change of the soft water machine to realize the switching of multiple function modes through the soft water valve.

[0144] Reference Figure 45 , Figure 46 , Figure 43 and Figures 2 to 6 As shown, the embodiment of the present application provides a soft water valve, which comprises a valve shell 110, a main valve assembly 120 and a secondary valve assembly 130, the valve shell 110 comprises a main cavity 111 and a secondary cavity 112, by adjusting the on-off of the corresponding flow channel of the main valve assembly 120, adjusting the on-off of the corresponding flow channel of the secondary valve assembly 130, and cooperating with the main cavity 111 and the secondary cavity 112, the switching of multiple function modes can be realized.

[0145] Among them, the function modes switchable by the soft water valve include: water production mode, water injection mode, salt absorption mode and cleaning mode, in the water production mode, the soft water valve can send raw water to the softening device 190, the soft water obtained by the softening of the softening device 190 is sent back to the soft water valve, and the user can take the soft water from the soft water outlet 114 of the soft water valve; in the water injection mode, the soft water valve can inject water into the salt tank 200 through the salt tank connection port 1110, the water injected into the salt tank 200 can be raw water or soft water, so as to dissolve the salt in the salt tank 200; after the water is injected into the salt tank 200, the salt in the salt tank 200 can be dissolved for a period of time, this process can be called salt melting mode; in the salt absorption mode, the salt water in the salt tank 200 is sent to the softening device 190 through the soft water valve, and the water cleaned by the softening device 190 is discharged through the soft water valve; in the cleaning mode, the raw water is injected into the softening device 190 through the soft water valve, and the water cleaned by the softening device 190 is discharged through the soft water valve; the cleaning mode includes at least one of the backwashing mode and the forward washing mode, the backwashing mode can be understood as that the raw water is injected into the softening device 190 through the soft water inlet 119, and then discharged to the soft water valve through the raw water outlet 118; the forward washing mode can be understood as that the raw water is injected into the softening device 190 through the raw water outlet 118, and then discharged to the soft water valve through the soft water inlet 119.

[0146] It should be noted that the raw water can be understood as the water injected through the raw water inlet 113 of the soft water valve, such as tap water, and the hardness of the raw water is greater than that of the soft water. The softening device 190 comprises 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 the raw water.

[0147] Reference Figures 9 to 14 , Figure 21 and Figure 5As shown, the valve housing 110 includes a raw water inlet 113, a softened water outlet 114, a main cavity 111, a secondary cavity 112, a raw water outlet 118 and a softened water inlet 119. The raw water inlet 113 is configured to be connected with a raw water pipe to allow raw water to enter the valve housing 110 of the water softener valve. At least one of the main cavity 111 and the secondary cavity 112 can be in communication with the raw water inlet 113, i.e. raw water can flow into at least one of the main cavity 111 and the secondary cavity 112, and then pass through the corresponding valve assembly to control the flow direction of the raw water. The raw water outlet 118 can be adjusted to be in communication with the raw water inlet 113 by the main valve assembly 120. When the main valve assembly 120 is in communication with the raw water inlet 113 and the raw water outlet 118, raw water can be delivered to the softening device 190 through the raw water outlet 118. Based on the fact that the raw water outlet 118 and the softened water inlet 119 can be in communication through the softening device 190, the softened water in the softening device 190 can be delivered to the water softener valve through the softened water inlet 119 after being softened in the softening device 190. The softened water inlet 119 is in communication with the softened water outlet 114 to deliver the softened water out of the water softener valve. Of course, the softened water inlet 119 can also be adjusted to be in communication with the flow passage inside the secondary valve assembly 130 to adjust the flow direction of the softened water. As shown in Figure 6 and Figure 45 , the main cavity 111 and the raw water outlet 118 are in communication, which can be understood as always being in communication. In the case of water entering the main cavity 111, water can flow to the softening device through the raw water outlet 118. In the case of no water entering the main cavity 111, the delivery of water from the raw water outlet 118 to the softening device is stopped. Without the need to adjust the communication between the main cavity 111 and the raw water outlet 118, the structure of the main valve core 124 can be simplified. 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 cavity 111 or the secondary cavity 112. When the raw water flows to the main cavity 111, the raw water can flow into the softening device 190 from the raw water outlet 118. When the raw water flows to the secondary cavity 112, at least part of the raw water can flow to the softened water outlet 114 and be discharged from the water softener valve. Of course, the main cavity 111 and the raw water outlet 118 can also be adjusted to be in communication or not in communication by the main valve core 124 (as shown in the embodiments of Figure 46 and Figure 45 ).

[0148] For example, the main cavity 111 is provided with a main cavity communication hole 116, which is in communication with the raw water outlet 118, so that the main cavity 111 and the raw water outlet 118 are in communication, and water in the main cavity 111 can flow to the raw water outlet 118 through the main cavity communication hole 116, or water at the raw water outlet 118 can flow into the main cavity 111 through the main cavity communication hole 116.

[0149] It can also be understood that one of the raw water inlet and the raw water outlet is always in communication with the main cavity, and the other of the raw water inlet and the raw water outlet is adjusted to be in communication or not in communication with the main cavity by the main valve core.

[0150] In some cases, the above describes the situation where "the raw water outlet and the main chamber are always connected." In this case, the flow direction of the raw water can be adjusted by opening and closing the main valve core. When the raw water inlet and the main chamber are connected through the main valve core, the raw water enters the main chamber through the main valve core and can then 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 flow of water from the raw water inlet to the main chamber is blocked, and the raw water cannot enter the softening device through the main chamber.

[0151] In some other cases, refer to Figure 46 and Figure 45 As shown, the raw water inlet is normally connected to the main chamber, and the raw water outlet is connected to the main chamber via a main valve core. This means that the raw water inlet can supply water to the main chamber. When the raw water outlet is connected to the main chamber via the main valve core, the raw water in the main chamber flows to the raw water outlet through the main valve core to be sent to the softening device. When the raw water outlet is disconnected from the main chamber via the main valve core, the main chamber no longer supplies water to the softening device. The aforementioned secondary chamber 112 and soft water outlet 114 are connected. This means that the secondary chamber 112 and soft water outlet 114 are normally connected. When water enters the secondary chamber 112, the user can obtain water from the secondary chamber 112 through the soft water outlet 114. This water can be either raw water or softened water, and water can be obtained in multiple modes. When water does not enter the secondary chamber 112, the user cannot obtain water from the secondary chamber 112. The water in the secondary chamber 112 can also be transported to the brine tank 200 or the softening device 190 via the secondary valve core 134. When liquid is present in the secondary chamber in each functional mode (water production mode, water injection mode, brine absorption mode, or cleaning mode), the soft water valve is in a state of continuous water intake to meet the user's water needs. The technical solution of this invention, by keeping water in the secondary chamber 112, allows the user to continuously draw water from the secondary chamber 112, achieving 24-hour water supply. The soft water inlet 119 and soft water outlet 114 are regulated by the on / off state of the secondary valve core. When the soft water inlet 119 and soft water outlet 114 are connected through the secondary valve core, it can be understood that the soft water inlet 119 is connected to the secondary chamber 112 through the secondary valve core, and the soft water outlet 114 is connected to the soft water inlet 119 through the secondary valve core, resulting in a simple structure. When the soft water inlet 119 and soft water outlet 114 are disconnected through the secondary valve core, the soft water outlet 114 cannot draw soft water. If the secondary chamber 112 is connected to the raw water inlet 113, the soft water outlet 114 can draw raw water.

[0152] It is also understandable that one of the soft water inlet 119 and the secondary chamber 112 is normally connected to the soft water outlet 114, and the other of the soft water inlet 119 and the secondary chamber 112 is regulated to be connected to the soft water outlet 114 through the on / off control of the secondary valve core.

[0153] The above content explains the "normally open secondary cavity 112 and soft water outlet 114". In some other cases, please refer to... Figure 46 and Figure 2As shown, the soft water inlet 119 is always connected with the soft water outlet 114, and the auxiliary cavity 112 is connected with the soft water outlet 114 through the auxiliary valve core, and 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, and when the auxiliary cavity 112 is connected with the soft water outlet 114 through the auxiliary valve core, based on the connection between the soft water inlet 119 and the soft water outlet 114, the solution in the auxiliary cavity 112 can be sent to the softening device 190 through the soft water inlet 119, for example, in the salt suction mode or the backwashing mode. When the auxiliary cavity 112 is disconnected with the soft water outlet 114, the auxiliary cavity 112 is also disconnected with the soft water inlet 119, and the auxiliary cavity 112 cannot cooperate with the soft water outlet 114 and the soft water inlet 119 to deliver the solution to the softening device 190. For example, the auxiliary cavity 112 is provided with an auxiliary cavity communication hole 1111, and the auxiliary cavity communication hole 1111 is connected with the soft water outlet 114, so that the water in the auxiliary cavity 112 can flow along the auxiliary cavity 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 auxiliary cavity 112 are the same kind of water, and through the cooperation of the main valve assembly 120 and the auxiliary valve assembly 130, the water in the auxiliary cavity 112 can be used in the water production mode, the water injection mode, the salt suction mode and the cleaning mode. For example, in the water production mode and the water injection mode, the water in the auxiliary cavity 112 is soft water, and in the salt suction mode, the water in the auxiliary cavity 112 is raw water, so that the user can have water available in any mode.

[0154] For example, the valve housing 110 is provided with a water outlet flow channel 1112, and the water outlet flow channel 1112 is connected with the auxiliary cavity communication hole 1111 and the soft water outlet 114, so that the water in the auxiliary cavity 112 can flow along the auxiliary cavity communication hole 1111, the water outlet flow channel 1112 and the soft water outlet 114.

[0155] It should be noted that the water outlet flow channel 1112 can be directly connected with the soft water outlet 114, and the water outlet flow channel 1112 can also be connected with the soft water outlet 114 through a corresponding channel.

[0156] The valve housing 110 is provided with a soft water channel, and the soft water channel is connected with the auxiliary cavity 112 and the soft water outlet 114, so that the water in the auxiliary cavity 112 can flow along the soft water channel to the soft water outlet 114.

[0157] It can be understood that the soft water channel can be connected with the auxiliary cavity 112 through the water outlet flow channel 1112, so that the water in the auxiliary cavity 112 can flow along the water outlet flow channel 1112 and the soft water channel to the soft water outlet 114.

[0158] For example, the valve housing 110 is connected with a flow meter 150, and the detection part of the flow meter 150 is located in the soft water channel, and the flow meter 150 can detect the flow of water flowing through the soft water channel.

[0159] The valve housing 110 is configured with a raw water channel, one end of the raw water channel is formed with a raw water inlet 113, and the other end of the raw water channel is in communication with at least one of the main cavity 111 and the auxiliary cavity 112, so that raw water can flow into at least one of the main cavity 111 and the auxiliary cavity 112.

[0160] 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 delivered to the main valve assembly 120, and the main valve assembly 120 has at least two flow paths, one of which is used to communicate the other end of the raw water channel and the main cavity 111, and the other of which is used to communicate the other end of the raw water channel and the auxiliary cavity 112. By controlling the opening and closing of the two flow paths through the main valve assembly 120, the opening and closing control of the raw water inlet 113 and the main cavity 111 can be realized, and the opening and closing control between the raw water inlet 113 and the auxiliary cavity 112 can also be realized.

[0161] The valve housing 110 is configured with a communication channel 1113, the outlet of the communication channel 1113 is in communication with the auxiliary cavity 112, and the inlet of the communication channel 1113 is in communication 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 the inlet of the communication channel 1113 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 auxiliary cavity 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 auxiliary cavity 112.

[0162] Exemplarily, the inlet of the communication channel 1113 is in communication with the raw water inlet 113 through the main valve assembly 120. Since the main valve assembly 120 is located between the raw water inlet 113 and the communication channel 1113, the opening and closing control of the raw water inlet 113 and the inlet of the communication channel 1113 can be realized through the main valve assembly 120.

[0163] Of course, the outlet of the communication channel 1113 can also be in communication with the auxiliary cavity 112 (not shown in the figure), and the auxiliary valve assembly 130 adjusts the communication between the auxiliary cavity 112 and the communication channel 1113. At this time, the communication channel 1113 and the raw water inlet 113 can be always in communication or in communication through the main valve assembly 120. The communication channel 1113 can also be in communication with the main cavity 111 through the main valve assembly 120. In the case that the main cavity 111 is in communication with the raw water inlet 113, the main valve assembly 120 adjusts the opening and closing of the main cavity 111 and the auxiliary cavity 112. That is, the main valve assembly 120 can control the main cavity 111 and the auxiliary cavity 112 to be in communication with the raw water inlet 113, or the main valve assembly 120 can make the raw water inlet 113 simultaneously communicate with the main cavity 111 and the auxiliary cavity 112.

[0164] Reference Figure 3 and Figures 1 to 42As shown, the inlet of the communication passage 1113 is located at the bottom of the main cavity 111, and the inlet of the communication passage 1113 corresponds to the main auxiliary connecting hole 1223 of the main valve sheet 122. The water inlet of the communication passage 1113 is mainly controlled by the main valve core 124 located in the main cavity 111. The main valve sheet 121 can actively control whether the raw water can flow into the auxiliary cavity 112. The communication passage 1113 between the two cavities is designed to be in a controllable state, mainly to ensure that the user can use water during the regeneration process of the softening material of the water softener, and will not affect the regeneration of the softening material. The outlet of the communication passage 1113 communicates with the auxiliary cavity 112. The auxiliary cavity water inlet hole is opened in the side wall of the auxiliary cavity 112. The outlet of the communication passage 1113 is the auxiliary cavity water inlet hole, so as to form a channel connecting the two cavities.

[0165] The outlet end of the communication passage 1113 communicates with the auxiliary communication port of the auxiliary cavity 112, and the inlet end of the communication passage 1113 communicates with the main communication port of the main cavity 111. The main communication port communicates with the raw water inlet 113 through the main valve core 124, so that the water softener can be switched between the state that the raw water inlet 113 communicates with the main communication port and the state that the raw water inlet 113 is disconnected from the main communication port. That is, the main valve core 124 can control the on-off connection between the raw water inlet 113 and the communication passage 1113, and the communication passage 1113 can communicate with the auxiliary cavity 112 through the auxiliary communication port, so that the main valve core 124 can control the on-off connection between the raw water inlet 113 and the auxiliary cavity 112.

[0166] The auxiliary communication port can be connected to the raw water inlet 113 in an on-off manner through the auxiliary valve core 134, so that the water softener can be switched between the state that the raw water inlet 113 communicates with the auxiliary communication port and the state that the raw water inlet 113 is disconnected from the auxiliary communication port. That is, the on-off connection between the raw water inlet 113 and the auxiliary cavity 112 can be controlled.

[0167] The outlet of the communication passage 1113 is formed in the wall surface of the auxiliary cavity 112. The outlet of the communication passage 1113 and the auxiliary cavity communication hole 1111 are located on the same side of the auxiliary valve core 134. When the communication passage 1113 communicates with the raw water inlet 113, the raw water can flow directly to the auxiliary cavity communication hole 1111 through the raw water inlet 113 and the communication passage 1113, and then flow to the soft water outlet 114 through the auxiliary cavity communication hole 1111, without passing through the auxiliary valve core 134, thereby simplifying the structure of the auxiliary valve core 134.

[0168] The outlet of the communication passage 1113 and the soft water inlet 119 are located on the two sides of the auxiliary valve core 134, respectively, so as to facilitate the auxiliary valve core 134 to control the on-off connection between the outlet of the communication passage 1113 and the soft water inlet 119. The auxiliary valve core 134 can separate the outlet of the communication passage 1113 and the soft water inlet 119.

[0169] It should be noted that "two sides of the auxiliary valve core 134" refers to two positions separated by the auxiliary valve core 134, i.e. "two sides" refers to relationships including but not limited to front and back, left and right, and up and down.

[0170] The outlet of the communication channel 1113 is higher than the auxiliary cavity communication hole 1111, so that when the raw water flows to the auxiliary cavity communication hole 1111 through the communication channel 1113, the raw water can flow to the soft water outlet 114 through the auxiliary cavity communication hole 1111, avoiding the problem of water accumulation in the auxiliary cavity 112 caused by the outlet of the communication channel 1113 being lower than the auxiliary cavity communication hole 1111.

[0171] Based on the fact that the soft water valve is in a state of communication between the auxiliary cavity 112 and the raw water inlet 113, the auxiliary valve water inlet 1314 is in corresponding communication with the auxiliary communication port. The auxiliary valve water inlet 1314 is in communication with the auxiliary cavity 112, and when the raw water flows into the auxiliary cavity 112 through the raw water inlet 113 and the auxiliary communication port, the raw water can directly flow into the auxiliary cavity 112, and the auxiliary valve core will not block the flow of raw water into the auxiliary cavity 112, so that the raw water can flow smoothly into the auxiliary cavity 112.

[0172] The functions of the soft water valve in each mode will be described below in combination with the structure of the valve housing described above.

[0173] In combination with Figure 45 As shown in FIG. 1, the raw water inlet 113 is always in communication with the main cavity 111, the raw water outlet 118 is regulated by the main valve core 124 to be in communication or not in communication with the main cavity 111, the soft water inlet 119 is always in communication with the soft water outlet 114, and the soft water outlet 114 is regulated by the auxiliary valve core 134 to be in communication or not in communication with the auxiliary cavity 112.

[0174] In combination with Figure 46 and Figure 16 As shown in FIG. 1, the raw water outlet 118 is always in communication with the main cavity 111, the raw water inlet 113 is regulated by the main valve core 124 to be in communication or not in communication with the main cavity 111, the soft water outlet 114 is always in communication with the auxiliary cavity 112, and the soft water inlet 119 is regulated by the auxiliary valve core 134 to be in communication or not in communication with the auxiliary cavity 112.

[0175] Based on the above, the function modes of the soft water valve include a water production mode, a water injection mode, a salt suction mode, and a cleaning mode, which will be described below.

[0176] Referring to Figures 1 to 42 As shown in FIG. 1, in the water production mode, the raw water inlet 113 and the raw water outlet 118 are in communication through the main valve core 124, and the soft water inlet 119 and the soft water outlet 114 are in communication, so that the raw water inlet 113, the main cavity 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 in communication with the softening device 190 through the main valve core 124, and the softening device 190 is in communication with the soft water outlet 114 through the auxiliary valve core 134, achieving soft water outlet.

[0177] Corresponding to the above embodiment, referring to Figures 45 to 60 illustrated, the soft water inlet 119 is always communicated with the soft water outlet 114, or, referring to Figure 19 illustrated, the soft water inlet 119 is communicated with the soft water outlet 114 through the sub-valve core 134.

[0178] Referring to Figure 22 illustrated, in the water injection mode, the raw water inlet 113 is communicated with the raw water outlet 118 through the main valve core 124, the soft water inlet 119 is communicated with the salt tank connecting port 1110 of the valve housing 110 through the sub-valve core 134, so that the raw water inlet 113, the main cavity 111, the raw water outlet 118, the soft water inlet 119, the sub-cavity 112 and the salt tank connecting port 1110 form a communicated flow path. The raw water can be communicated into the softening device 190, and the soft water is communicated into the salt tank 200 through the sub-valve core 134.

[0179] Wherein, if the sub-cavity 112 is always communicated with the soft water outlet 114, in the water injection mode, the soft water outlet 114 can be used to take soft water. If the sub-cavity 112 is disconnected with the soft water outlet 114 in the water injection mode, the water injection mode cannot take water from the soft water outlet 114.

[0180] Referring to Figure 25 illustrated, in the salt suction mode, the raw water inlet 113 is communicated with the sub-cavity 112, the sub-cavity 112 is communicated with the salt tank connecting port 1110 of the valve housing 110 through the sub-valve core 134, the salt tank connecting port 1110 is communicated with the soft water inlet 119 through the sub-valve core 134, so that the raw water inlet 113, the sub-cavity 112, the salt tank connecting port 1110 and the soft water inlet 119 are communicated, used for communicating the salt water mixed solution into the softening device 190, and the raw water outlet 118 is communicated with the blowdown port 115 of the valve housing 110 to discharge the solution in the softening device 190. The raw water is sent to the salt tank connecting port 1110 through the sub-cavity 112 and the sub-valve core 134, and the salt solution in the salt tank 200 is provided with a negative suction force through the raw water, so that the salt water mixed solution of the salt solution and the raw water is sent into the softening device 190, and the solution in the softening device 190 is sent out from the blowdown port 115 through the main valve core 124, realizing the process of slow washing by salt suction.

[0181] Referring to Figure 28As shown, the cleaning mode includes a backwash mode, in which the raw water inlet 113 is communicated with the secondary cavity 112, the secondary cavity 112 is communicated with the softened water inlet 119 through the secondary spool 134, the raw water outlet 118 is communicated with the blowdown port 115 of the valve housing 110, so that the raw water inlet 113, the secondary cavity 112, the secondary spool 134, the softened water inlet 119, the raw water outlet 118 and the blowdown port 115 form a communication flow path. The raw water of the raw water inlet 113 enters the secondary cavity 112 through at least one of the main cavity 111 and the main spool 124, the secondary cavity 112 is communicated with the softening device 190 through the secondary spool 134, and the softening device 190 is communicated with the blowdown port 115 through the main spool 124, so as to realize blowdown.

[0182] In the above-mentioned salt suction mode and backwash mode, the raw water inlet 113 is communicated with the secondary cavity 112, which can be understood as the raw water inlet 113 being always communicated or being regulated to be communicated or not. When the raw water inlet 113 is always communicated with the main cavity 111, a communication channel 3111 is arranged between the main cavity 111 and the secondary cavity 112, so that the raw water inlet 113 is always communicated with the secondary cavity 112. When the raw water inlet 113 is regulated to be communicated or not, the raw water inlet 113 is communicated with the secondary cavity 112 through the flow channel in the main spool 124, or the raw water inlet 113 is communicated with the main cavity 111 through the main spool 124, and the main cavity 111 is communicated with the secondary cavity 112.

[0183] Reference Figure 28 As shown, the cleaning mode includes a forward wash mode, in which the raw water inlet 113 is communicated with the raw water outlet 118 through the main spool 124, and the softened water inlet 119 is communicated with the blowdown port 115 of the valve housing 110 through the secondary spool 134, so that the raw water inlet 113, the main spool 124, the raw water outlet 118, the softened water inlet 119, the secondary spool 134 and the blowdown port 115 form a communication flow path. The raw water inlet 113 is communicated with the softening device 190 through the main spool 124, and the softening device 190 is communicated with the blowdown port 115 through the secondary spool 134, so as to realize blowdown. Figure 7 As shown, the softening device 190 is communicated with the blowdown port 115 through the secondary cavity 112, and the secondary cavity 112 is communicated with the softened water outlet 114, so that the softened water outlet 114 can take water from the softening device 190. In some cases, the secondary spool 134 is disconnected from the softened water outlet 114, so that water cannot be taken.

[0184] Next, based on the structure and function of the main valve assembly 120 and the secondary valve assembly 130 corresponding to the flow path of each function mode, the structure and function of the main valve assembly 120 and the secondary valve assembly 130 are described based on the following conditions: the raw water outlet 118 is always communicated with the main cavity 111, the raw water inlet 113 is regulated to be communicated or not with the main cavity 111 through the main spool 124, the softened water outlet 114 is always communicated with the secondary cavity 112, and the softened water inlet 119 is regulated to be communicated or not with the secondary cavity 112 through the secondary spool 134.

[0185] Next, the structure and function of the main valve assembly and the auxiliary valve assembly will be described based on the flow path corresponding to each function mode, i.e., "the raw water outlet is always connected to the main cavity, the raw water inlet is connected to the main cavity through the main valve core, the soft water outlet is always connected to the auxiliary cavity, and the soft water inlet is connected to the auxiliary cavity through the auxiliary valve core".

[0186] Specifically, the main driving part 125 is configured to drive the main valve core 124 to switch between the third main valve position, in which the main valve core 124 connects the inlet of the communication passage 1113 and the raw water inlet 113, and the first main valve position, in which the main valve core 124 connects the main cavity 111 and the raw water inlet 113.

[0187] It can be understood that, by driving the main valve core 124 to switch between the first main valve position and the third main valve position through the main driving part 125, when the main valve core 124 is in the first main valve position, the main valve core 124 connects the main cavity 111 and the raw water inlet 113, while the main valve core 124 blocks the raw water inlet 113 and the inlet of the communication passage 1113, so that the raw water flows into the main cavity 111, and at this time, the water softener is in the water production mode, the water filling 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 communication passage 1113 and the raw water inlet 113, so that the raw water flows into the auxiliary cavity 112 through the raw water inlet 113 and the communication passage 1113, and at this time, the main valve core 124 blocks the raw water inlet 113 and the main cavity 111, and at this time, the water softener is in the salt absorption mode or the reverse washing mode.

[0188] That is to say, when the cleaning mode includes the forward washing mode and the reverse washing mode, in the water production mode, the water filling mode and the forward washing mode, the main valve core 124 is in the first main valve position, the communication flow passage 128 is disconnected, and the raw water inlet 113 is connected to the main cavity 111, at this time, the main valve assembly 120 is mainly used to deliver the raw water to the main cavity 111, so that the raw water enters the softening device 190, and at this time, the auxiliary valve assembly 130 is switched through the flow path, so that the water softener is switched between the water production mode, the water filling mode and the forward washing mode; in the salt absorption mode and the reverse washing mode, the communication flow passage 128 is connected, and the raw water inlet 113 is disconnected from the main cavity 111, at this time, the main valve assembly 120 is mainly used to deliver the softening device 190 to the sewage discharge valve shell 110 of the raw water outlet 118, and at this time, the auxiliary valve assembly 130 is switched through the flow path, so that the water softener is switched between the salt absorption mode and the reverse washing mode.

[0189] It should be noted that in the salt suction mode and the backwashing mode, the driving main valve core 124 is in the third main valve position, so that the communication passage 1113 communicates the raw water inlet 113 and the auxiliary cavity 112, so that the raw water inlet 113, the communication passage 1113 and the auxiliary cavity 112 are communicated. The raw water can flow to the auxiliary cavity 112 through the raw water inlet 113 and the communication passage 1113, and then the switching of the flow path of the auxiliary valve assembly 130 realizes the switching of the soft water valve between the salt suction mode and the backwashing mode, but no matter how the auxiliary valve assembly 130 switches, the raw water needs to flow into the auxiliary cavity 112 first, and the auxiliary cavity 112 is communicated with the soft water outlet 114, so that in the salt suction mode and the backwashing mode, the water at the soft water outlet 114 is raw water, which ensures that the user has water available in the salt suction mode and the backwashing mode.

[0190] In the third main valve position, the main valve core 124 is driven by the main driving part 125, so that the communication flow channel 128 of the main valve core 124 is communicated, and the inlet of the communication passage 1113 and the raw water inlet 113 are communicated through the communication flow channel 128, so that the raw water inlet 113, the communication flow channel 128, the communication passage 1113 and the auxiliary cavity 112 are communicated. The inlet of the communication passage 1113 and the raw water inlet 113 are communicated through the communication flow channel 128, so that water can flow along the path of the raw water inlet 113, the communication flow channel 128, the communication passage 1113 and the auxiliary cavity 112. The inlet of the communication passage 1113 and the raw water inlet 113 are connected through the communication flow channel 128, the communication flow channel 128 is disconnected when the main valve core 124 rotates to the first main valve position, so that the inlet of the communication passage 1113 and the raw water inlet 113 are disconnected, and the communication flow channel 128 is communicated when the main valve core 124 rotates to the third main valve position, so that the inlet of the communication passage 1113 and the raw water inlet 113 are communicated.

[0191] For example, the inlet of the communication flow channel 128 is communicated with the raw water inlet 113, the outlet of the communication flow channel 128 is communicated with the inlet of the communication passage 1113, and the inlet of the communication flow channel 128 is directed to the side of the raw water inlet 113, that is, the inlet of the communication flow channel 128 is not communicated with the main cavity 111 at this time, the raw water flows along the path of the raw water inlet 113, the inlet of the communication flow channel 128, the communication flow channel 128, the communication passage 1113 and the auxiliary cavity 112, and the raw water does not need to pass through the main cavity 111, which can separate the main cavity 111 and the raw water inlet 113, and ensure that the main cavity 111 will not be filled with raw water when the main valve is in the third position.

[0192] For example, the main valve inlet hole 1221 of the main valve seat 122 is connected to the main valve first groove 1212 of the main valve stem 121 and the main auxiliary connection hole 1223 of the main valve seat 122 to form a communication flow channel 128. The main auxiliary connection hole 1223 is connected to the inlet of the communication channel 1113. The inlet of the communication flow channel 128 is formed at the main valve inlet hole 1221, and the outlet of the communication flow channel 128 is formed at the main auxiliary connection hole 1223. When the main valve stem 121 is driven to rotate to the third main valve position by the main driving part 125, the main valve first groove 1212 is connected to the main valve inlet hole 1221 and the main auxiliary connection hole 1223, so that the main valve inlet hole 1221, the main valve first groove 1212 and the main auxiliary connection hole 1223 form the communication flow channel 128. Raw water can flow along the path of the raw water inlet 113, the main valve inlet hole 1221, the main valve first groove 1212, the main auxiliary connection hole 1223, the communication channel 1113 and the auxiliary cavity 112.

[0193] In the salt suction mode and the backwashing mode, the main valve inlet hole 1221 includes a first region and a second region connected to each other. The first region is connected to the main valve first groove 1212 and the main auxiliary connection hole 1223, and the second region is closed by the main valve process groove of the main valve stem 121. Raw water flows to the auxiliary cavity through the first region, the main valve first groove 1212 and the main auxiliary connection hole 1223.

[0194] In the salt suction mode and the backwashing mode, the main valve inlet hole 1221 includes a first region and a second region connected to each other. The first region is connected to the main valve first groove 1212 and the main auxiliary connection hole 1223, and the second region is closed by the main valve process groove of the main valve stem 121. Raw water flows to the auxiliary cavity through the first region, the main valve first groove 1212 and the main auxiliary connection hole 1223.

[0195] Reference Figure 8 , Figure 36 , Figure 40 and Figures 1 to 6 As shown in FIGS. 1 to 3, 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 cavity 111. The main cavity 111 and the raw water inlet 113 are connected or disconnected through the main valve core 124, so that the main cavity 111 and the raw water inlet 113 can be switched between being connected and being disconnected.

[0196] In some cases, the auxiliary cavity 112 and the raw water inlet 113 are connected or disconnected through the main valve core 124, so that the auxiliary cavity 112 and the raw water inlet 113 can be switched between being connected and being disconnected. When the auxiliary cavity 112 is connected to the raw water inlet 113, raw water enters the auxiliary cavity 112, and then the flow direction of water is controlled by the auxiliary valve assembly 130. When the auxiliary cavity 112 is disconnected from the raw water inlet 113, raw water flows into the main cavity 111 through the main valve core 124, and then the flow direction of water is controlled by the auxiliary valve assembly 130 and the auxiliary cavity 112.

[0197] The sub-valve assembly 130 includes a sub-valve core 134 and a sub-driving part 135 for driving the sub-valve core 134 to move, the sub-valve core 134 is located in the sub-cavity 112, and the sub-valve core 134 regulates the opening and closing of the flow passage of the sub-valve core 134, and can adjust the opening and closing of the corresponding passage in the sub-valve core 134, and can adjust the opening and closing of the corresponding passage in the sub-valve core 134. The opening and closing of the sub-cavity 112 and the sub-valve core 134, such as the sub-valve core 134, can regulate the opening and closing of the soft water inlet 119 and the sub-cavity 112, the opening and closing of the salt tank connecting port 1110 of the valve shell 110 and the sub-cavity 112, and the opening and closing of the soft water inlet 119 and the jet flow device 160 of the soft water valve. The sub-cavity 112 and the sub-valve assembly 130 are mainly used to realize the regeneration of the softening device 190 (the regeneration process includes: water injection mode, salt suction mode and cleaning mode), and the sub-cavity 112 and the sub-valve assembly 130 are also used to continuously supply water to the soft water outlet 114.

[0198] The main driving part 125 can drive the main valve core 124 to move, and the sub-driving part 135 can drive the sub-valve core 134 to move, so that the soft water valve can be switched between the water making mode, the water injection mode, the salt suction mode and the cleaning mode.

[0199] The main cavity 111 and the main valve assembly 120 are mainly used to supply water to the softening device 190, and the functions of the main cavity 111 and the main valve assembly 120 are mainly used for normal water making. Because the normal water making flow is relatively large, the main cavity 111 and the main valve core 124 are used for water making, and the sub-valve core 134 is used to connect the soft water inlet 119 and the sub-cavity 112. The sub-cavity 112 and the sub-valve assembly 130 are mainly used to transport the soft water of the softening device 190 to the sub-cavity 112, and are used for various modes requiring soft water. The large opening structure of the sub-cavity 112 and the sub-valve core 134 is used for the user to take water. Because the water softener also has other state functions, such as forward washing, reverse washing, water injection, salt suction slow washing, etc., the flow requirement of these states is relatively small, so the opening area of the hole for water injection and salt suction in the sub-valve core 134 can be smaller than the opening area of the hole for water inlet. Therefore, these states are mainly controlled by the sub-cavity 112 and the sub-valve assembly 130, and the main cavity 111 and the main valve assembly 120 play an auxiliary function. The sub-cavity 112 and the sub-valve assembly 130 are mainly used for the regulation of other flow paths, and the main cavity 111 and the main valve assembly 120 can increase the flow of water supplied to the softening device 190. The sub-cavity 112 and the main cavity 111 cooperate to perform other functions.

[0200] The main cavity 111 cooperates with the main valve assembly 120 to mainly function as normal water production. Since the raw water flow demand in the water production mode is relatively large, the main valve core 124 forms a main water production flow channel 126, the main water production flow channel 126 is communicated with the raw water inlet 113 and the main cavity 111, and the main cavity 111 is communicated with the raw water outlet 118, and water production is performed by using the large opening structure of the main valve core 124. In the water production mode, the auxiliary valve core 134 forms an auxiliary water production flow channel 136, the soft water inlet 119 is communicated with the auxiliary cavity 112 through the auxiliary water production flow channel 136, the soft water outlet 114 is communicated with the auxiliary cavity 112, and water production is performed by using the large opening structure of the auxiliary valve core 134.

[0201] Since the water softener also has other state functions, such as cleaning, water filling, salt sucking slow washing and the like, the flow demand of the raw water in these states is relatively small, therefore, the auxiliary valve core 134 can form multiple flow channels, the flow channel formed by the auxiliary valve core 134 requires a smaller flow area, these states are mainly controlled by the auxiliary cavity 112 and the auxiliary valve assembly 130, and the main cavity 111 cooperates with the main valve assembly 120 to perform pollution discharge in the regeneration process. In some cases, the main cavity 111 and the auxiliary cavity 112 have the same shape, the main valve assembly 120 and the auxiliary valve assembly 130 have the same size of the outer contour, and the flow area of the flow channel formed by the auxiliary cavity 112 and the auxiliary valve assembly 130 is smaller than the flow area of the main water production flow channel 126 formed by the main cavity 111 and the main valve assembly 120.

[0202] It can be understood that at least one of the main cavity 111 and the auxiliary cavity 112 is communicated with the raw water inlet 113, that is, at least one of the main cavity 111 and the auxiliary cavity 112 is communicated with the raw water, and the raw water is sent into the softening device 190 through at least one of the main cavity 111 and the auxiliary cavity 112. In this case, at least one of the main cavity 111 and the auxiliary cavity 112 can be communicated with the raw water inlet 113 through a channel, that is, a raw water channel can be arranged between the main cavity 111 and the raw water inlet 113, and / or a channel can be arranged between the auxiliary cavity 112 and the raw water inlet 113. Of course, when the main cavity 111 and the auxiliary cavity 112 are both communicated with the raw water inlet 113, the main cavity 111 and the auxiliary cavity 112 can be communicated with the raw water inlet 113 through independent channels. Alternatively, one of the main cavity 111 and the auxiliary cavity 112 is communicated with the raw water inlet 113 through a channel, and the main cavity 111 and the auxiliary cavity 112 are communicated with each other through the communication channel 1113.

[0203] The soft water valve of the embodiment of the present application has a multi-functional two-cavity structure design, which can meet the use requirements of different states of the water softener. By switching the water paths of the main valve assembly 120 and the auxiliary valve assembly 130, the water path adjustment of different states of the water softener is realized, that is, the water path function requirements of multiple states such as the water production mode, the cleaning mode (at least one of the forward washing and the reverse washing), the water filling mode, the salt sucking slow washing mode (hereinafter referred to as the salt sucking mode) and the like are realized. The whole valve head structure is compact, simple, has high reliability, and is stable and good in work.

[0204] Referring to Figures 40 to 42 and Figure 7 As shown, the valve housing 110 of the water softener valve is further provided with a blowdown port 115 and a salt tank connecting port 1110. The blowdown port 115 is used for discharging sewage. The blowdown port 115 can be connected to the flow channel of at least one of the main cavity 111 and the auxiliary cavity 112 to realize blowdown of different flow paths. The salt tank connecting port 1110 is used for connecting to the salt tank 200. The salt tank connecting port 1110 can inject water into the salt tank 200. The salt tank connecting port 1110 can also guide brine from the salt tank 200 into the water softener valve. The salt tank connecting port 1110 can have at least one of the functions of water injection and brine suction. One of the main valve assembly 120 and the auxiliary valve assembly 130 can be used to switch on and off the salt tank connecting port 1110 to realize switching on and off of the water softener valve and the salt tank 200.

[0205] The valve housing 110 is formed with a blowdown passage 1114. The blowdown passage 1114 can be connected to at least one of the main cavity 111 and the auxiliary cavity 112 to realize blowdown of different flow paths. For example, one end of the blowdown passage 1114 is connected to at least one of the main cavity 111 and the auxiliary cavity 112. The other end of the blowdown passage 1114 forms the blowdown port 115. In this way, sewage in the valve housing 110 can be discharged through the blowdown passage 1114 and the blowdown port 115.

[0206] In some cases, as shown in Figure 8 and Figure 7 At least one of the main valve assembly 120 and the auxiliary valve assembly 130 is a multi-position multi-way valve. The main valve assembly 120 and the auxiliary valve assembly 130 can be switched between multiple positions. After switching, multiple flow paths can be switched on and off.

[0207] For example, the main valve assembly 120 can be switched between at least two main valve positions. In one main valve position, the main valve assembly 120 connects the main cavity 111 to the raw water inlet 113 to supply water to the softening device 190. In this case, the water softener 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 to the blowdown port 115 to realize blowdown. In this case, the water softener valve corresponds to the backwashing mode and the brine suction mode. In another main valve position, the main valve assembly 120 can also connect the auxiliary cavity 112 to the raw water inlet 113. The auxiliary valve assembly 130 can be switched between multiple auxiliary valve positions (such as three, four, five, etc.). One auxiliary valve position corresponds to one mode of the water softener valve. The auxiliary valve assembly 130 can also be switched between three auxiliary valve positions (not shown in the figure). The auxiliary valve positions are mainly used for cleaning and cooperating with the water injection mode and the brine suction mode. The structures of the main valve assembly 120 and the auxiliary valve assembly 130 can be various. The functions and structures of the main valve assembly 120 and the auxiliary valve assembly 130 can be set as needed.

[0208] In some cases, as shown in Figure 8 , Figure 40and Figure 7 As shown in FIG. 1, the main driving part 125 of the main valve assembly 120 is configured to drive the main valve core 124 to rotate, and the main valve core 124 is switched between a plurality of main valve positions by rotating. And / or, the auxiliary driving part 135 of the auxiliary valve assembly 130 is configured to drive the auxiliary valve core 134 to rotate, and the auxiliary valve core 134 is switched between a plurality of auxiliary valve positions by rotating.

[0209] At least one of the main valve assembly 120 and the auxiliary valve assembly 130 is a disc valve, which has a simple structure, and the valve disc of the main valve core 124 and the valve disc of the auxiliary valve core 134 can be selected as a porcelain disc. Referring to Figure 8 As shown in FIG. 1, when the main valve assembly 120 is a disc valve, the main valve core 124 includes a main static valve disc 122 and a main dynamic valve disc 121, the main static valve disc 122 is fixed in the main cavity 111, and the main driving part 125 is connected to the main dynamic valve disc 121. The main driving part 125 is configured to drive the main dynamic valve disc 121 to rotate relative to the main static valve disc 122, so as to adjust the corresponding flow passage of the main valve assembly 120. And / or, referring to Figures 16 to 30 As shown in FIG. 1, when the auxiliary valve assembly 130 is a disc valve, the auxiliary valve core 134 includes an auxiliary static valve disc 132 and an auxiliary dynamic valve disc 131, the auxiliary static valve disc 132 is fixed in the auxiliary cavity 112, and the auxiliary driving part 135 is connected to the auxiliary dynamic valve disc 131. The auxiliary driving part 135 is configured to drive the auxiliary dynamic valve disc 131 to rotate relative to the auxiliary static valve disc 132, so as to adjust the corresponding flow passage of the auxiliary valve assembly 130.

[0210] When the valve disc of the disc valve is a porcelain disc, the service life and reliability of the disc valve are higher due to the better wear resistance of the porcelain disc. Compared with the case that the plunger valve has a higher structure and processing precision, the manufacturing cost of the disc valve is reduced, which is an important direction for the development of soft water valves.

[0211] For example, the main dynamic 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 passage. When the main valve core 124 has at least two flow passages, the main driving part 125 can be used to drive the main dynamic valve disc 121 to rotate, so that the main dynamic valve disc 121 and the main static valve disc 122 form different flow passages.

[0212] Exemplarily, the side of the main active valve plate 121 in contact with the main static valve plate 122 is in a large fan shape, and the side edge has a large main valve water inlet 1211 which is also in a fan shape. The main static valve plate 122 is provided with a main valve water inlet hole 1221. 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 plate 122 and the main valve water inlet 1211 of the main active valve plate 121. At the same time, the main active valve plate 121 is also designed with two groove bodies. By rotating the main active valve plate 121, the groove bodies of the main active valve plate 121 can connect or disconnect the main valve blowdown hole 1222 of the main static valve plate 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 1211 is large, which is mainly used for water production. The flow area of the main valve blowdown hole 1222 is small, which can reduce the blowdown flow.

[0213] In some cases, when the auxiliary cavity 112 is connected or 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 auxiliary connection hole 1223 which connects the auxiliary cavity 112. The main active valve plate 121 is provided with a main valve first recess 1212 which can connect the main auxiliary connection hole 1223 and the main valve water inlet hole 1221, so as to form a connection flow channel 128.

[0214] Reference Figure 36 Exemplarily, the main valve core 124 has flow channel structures such as a main water production flow channel 126, a connection flow channel 128 and a first blowdown flow channel 127. The main valve water inlet 1211 of the main active valve plate 121 and the main valve water inlet hole 1221 of the main static valve plate 122 can form the main water production flow channel 126 when they are connected, and at this time, the main valve core 124 is in a first main valve position, and the water softener can be in a water production mode or a water filling mode or a forward washing mode. The main valve water inlet hole 1221 of the main static valve plate 122 is connected to the main auxiliary connection hole 1223 of the main static valve plate 122 through the main valve first recess 1212 of the main active valve plate 121 to form the connection flow channel 128, and at this time, the main valve core 124 is in a third main valve position, and the water softener can be in a salt absorption mode or a reverse washing mode. The main valve blowdown hole 1222 of the main static valve plate 122 is connected to the main valve water inlet 1211 of the main active valve plate 121 to form the first blowdown flow channel 127, and at this time, the main valve core 124 is in a third main valve position, and the water softener is in a salt absorption mode or a reverse washing mode.

[0215] Exemplarily, the auxiliary valve core 134 has at least one flow channel, the auxiliary active valve plate 131 is provided with at least one notch structure or recess structure, and the auxiliary static valve plate 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 active valve plate 131 can be driven to rotate by the auxiliary driving part 135, so that the auxiliary active valve plate 131 and the auxiliary static valve plate 132 form different flow channels.

[0216] In some cases, the sub-valve core 134 has a sub-water production flow path 136, a water filling flow path 137, a forward washing flow path 138, a backwashing flow path, a first salt suction flow path 1341 and a second salt suction flow path 1342. The softened connection hole 1322 of the sub-static valve piece 132 and the sub-valve water inlet 1314 of the sub-moving valve piece 131 are communicated to form the sub-water production flow path 136 when the sub-valve core 134 is in the first sub-valve position, and the water softener is in the water production mode. The softened connection hole 1322 of the sub-static valve piece 132 and the salt water filling hole 1324 of the sub-static valve piece 132 are communicated to form the water filling flow path 137, such as the softened connection hole 1322 and the salt water filling hole 1324 can be communicated through the sub-valve water inlet 1314 of the sub-moving valve piece 131, when the sub-valve core 134 is in the second sub-valve position, and the water softener is in the water filling mode. The softened connection hole 1322 of the sub-static valve piece 132 and the sub-valve drain hole 1321 of the sub-static valve piece 132 are communicated to form the forward washing flow path 138, such as the sub-valve drain hole 1321 can be communicated with the softened connection hole 1322 through the sub-valve water inlet 1314 of the sub-moving valve piece 131, when the sub-valve core 134 is in the fourth sub-valve position, and the water softener is in the forward washing mode. The softened connection hole 1322 of the sub-static valve piece 132 and the sub-valve water inlet 1314 of the sub-moving valve piece 131 are communicated to form the backwashing flow path, when the sub-valve core 134 is in the first sub-valve position, and the water softener is in the backwashing mode. The sub-valve water inlet 1314 of the sub-moving valve piece 131 and the salt water filling hole 1324 of the sub-static valve piece 132 are communicated to form the first salt suction flow path 1341, and the salt water hole 1323 of the sub-static valve piece 132 is communicated through the first sub-valve groove 1311 of the sub-moving valve piece 131 and the softened connection hole 1322 of the sub-static valve piece 132 to form the second salt suction flow path 1342, when the sub-valve core 134 is in the third sub-valve position, and the water softener is in the salt suction mode.

[0217] It should be noted that in the water production mode and the backwashing mode, the sub-valve core 134 is in the first sub-valve position, and the communication modes of the sub-valve core 134, the sub-cavity 112 and the softening device 190 are the same, but the flow directions of water are different.

[0218] Of course, in some cases, the main valve assembly 120 and the sub-valve assembly 130 can also switch the flow path on-off through other ways, such as one of the main valve assembly 120 and the sub-valve assembly 130 is moved to realize the flow path switching, and one of the main valve assembly 120 and the sub-valve assembly 130 can be a plunger valve.

[0219] In some cases, referring to Figure 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 main movable valve plate 121. The main valve motor drives the main valve motor to rotate through the main shaft assembly 1251, and the main valve motor can drive the main movable valve plate 121 to rotate, so that the relative position between the main movable valve plate 121 and the main static valve plate 122 changes, and the main valve core 124 forms different flow channels.

[0220] In some cases, reference Figures 9 to 30 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, and 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, and the auxiliary valve core 134 forms different flow channels.

[0221] It should be noted that the main driving part 125 and the auxiliary driving part 135 can also share a driving motor, and are not limited to the above-mentioned main valve motor and auxiliary valve motor.

[0222] Next, reference Figures 9 to 14 As shown, in the case where the water softening valve includes a valve housing 110, a main valve assembly 120 and an auxiliary valve assembly 130, the main valve assembly 120 cooperates with the auxiliary valve assembly 130 to realize the switching of multiple modes, which will be described below.

[0223] Regarding the water production mode:

[0224] Reference Figures 16 to 18 , Figure 9 As shown, it can be understood that in the water production mode, the main water production flow channel 126 of the main valve core 124 is connected, the main water production flow channel 126 connects the main cavity 111 and the raw water inlet 113, the auxiliary cavity 112 and the soft water inlet 119 are connected, and the raw water inlet 113, the main water production flow channel 126, the main cavity 111, the raw water outlet 118, the soft water inlet 119, the auxiliary cavity 112 and the soft water outlet 114 are connected. The main cavity 111 and the main valve assembly 120 are mainly used to send water to the softening device 190 in the water production mode, which helps to increase the flow of the soft water valve to the softening device 190, and further increases the flow of the soft water produced by the softening device 190, so as to facilitate the user to use the soft water.

[0225] In the water production mode, the main cavity 111 cooperates with the main valve assembly 120, so that the raw water inlet 113 is in communication with the main cavity 111, the auxiliary cavity 112 cooperates with the auxiliary valve assembly 130, so that the auxiliary cavity 112 is in communication with the soft water outlet 114, based on the communication of the raw water inlet 113, the main water production flow channel 126, the main cavity 111, the raw water outlet 118, the soft water inlet 119, the auxiliary cavity 112 and the soft water outlet 114, water flows along the path of the raw water inlet 113, the main water production flow channel 126, the main cavity 111, the raw water outlet 118, the soft water inlet 119, the auxiliary cavity 112 and the soft water outlet 114, so as to realize water supply to the softening device 190 through the main valve assembly 120 and the main cavity 111, and the soft water obtained after being softened by the softening device 190 can be discharged to the auxiliary cavity 112 through the soft water inlet 119, and the soft water in the auxiliary cavity 112 is discharged through the soft water outlet 114, in this process, the auxiliary cavity 112 and the auxiliary valve assembly 130 are used to communicate the soft water inlet 119 and the auxiliary cavity 112, so that the soft water can be discharged from the soft water inlet 119 to the auxiliary cavity 112, and the soft water is discharged from the auxiliary cavity 112 to the soft water outlet 114, so as to facilitate the user to take water.

[0226] The main driving part 125 is used to drive the main valve core 124 to move, so that the main valve core 124 is switched to be in communication with the main water production flow channel 126. It can be understood that the main water production flow channel 126 can be in communication in some modes and disconnected in some modes.

[0227] As shown in the reference Figures 9 to 14 The main valve core 124 includes a main static valve piece 122 and a main dynamic valve piece 121, the main dynamic valve piece 121 is connected to the main driving part 125, the main static valve piece 122 is fixed to the valve shell 110, the main static valve piece 122 is configured with a main valve water inlet hole 1221, the main dynamic valve piece 121 is configured with a main valve water inlet 1211, the main valve water inlet hole 1221 is in communication with the raw water inlet 113, the main valve water inlet 1211 is in communication with the main cavity 111, and the main valve water inlet hole 1221 and the main valve water inlet 1211 are in communication to form the main water production flow channel 126. The main driving part 125 drives the main dynamic valve piece 121 to adjust the position relative to the main static valve piece 122, so as to realize the on-off adjustment of the main cavity 111 and the raw water inlet 113, which is simple in structure and convenient to adjust.

[0228] It can be understood that in the water production mode, the main drive part 125 drives the main valve piece 121 to move, so that the main valve water inlet 1211 and the main valve water hole 1221 are correspondingly communicated, that is, the main water production flow channel 126 formed by the main valve water inlet 1211 and the main valve water hole 1221 is communicated, and the water at the raw water inlet 113 can flow to the main cavity 111 through the main water production flow channel 126. In the partial non-water production mode, the main drive part 125 drives the main valve piece 121 to move, so that the main valve water inlet 1211 and the main valve water hole 1221 are not correspondingly communicated, that is, the main valve water inlet 1211 and the main valve water hole 1221 are disconnected, the main water production flow channel 126 is disconnected, the raw water inlet 113 cannot be communicated with the main cavity 111, and the water at the raw water inlet 113 cannot flow to the main cavity 111.

[0229] It can be understood that when the water softener valve is switched from other modes to the water production mode, the main drive part 125 drives the main valve piece 121 to rotate to the first main valve position, at which time the main valve water inlet 1211 and the main valve water hole 1221 are communicated to form the main water production flow channel 126, so that the raw water inlet 113 can be communicated with the main cavity 111 through the main water production flow channel 126, and water can be injected into the resin tank through the main water production flow channel 126.

[0230] When the main drive part 125 is used to drive the main valve piece 121 to rotate, the main valve piece 121 can be rotated to communicate or disconnect the main valve water inlet 1211 and the main valve water hole 1221. The main valve water hole 1221 can be a fan-shaped hole, and the main valve water inlet 1211 can be formed through the fan-shaped gap of the main valve piece 121 to ensure the flow area of the raw water.

[0231] The above describes the main valve assembly 120, the main cavity 111 and the valve shell 110 in the water production mode.

[0232] The water production mode is the main function mode of the water softener valve, and other function modes (water injection mode, salt suction mode, cleaning mode) of the water softener valve 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 is mainly to inject water into the salt tank 200 to melt the salt in the salt tank 200 and regenerate the softening material in the softening device 190.

[0233] Next, the auxiliary valve assembly 130, the auxiliary cavity 112 and the valve shell 110 in the water production mode are described.

[0234] In the water production mode, the secondary water production flow channel 136 of the secondary valve core 134 is communicated, the secondary water production flow channel 136 communicates the soft water inlet 119 and the secondary cavity 112, so that the raw water inlet 113, the main water production flow channel 126, the main cavity 111, the raw water outlet 118, the soft water inlet 119, the secondary water production flow channel 136, the secondary cavity 112 and the soft water outlet 114 are communicated. It can be understood that in the water production mode, the secondary valve core 134 is driven by the secondary driving part 135, so that the secondary valve core 134 communicates the soft water inlet 119 and the secondary cavity 112. Specifically, in the water production mode, the secondary water production flow channel 136 of the secondary valve core 134 is communicated, the secondary water production flow channel 136 is mainly used to communicate the soft water inlet 119 and the secondary cavity 112, based on the state of the main valve assembly 120 in the water production mode, the raw water inlet 113, the main water production flow channel 126, the main cavity 111, the raw water outlet 118 and the soft water inlet 119 are communicated, that is, the raw water can be transported from the raw water outlet 118 to the softening device 190, and 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 communicated through the secondary water production flow channel 136 and the secondary cavity 112, so that the soft water inlet 119, the secondary water production flow channel 136, the secondary cavity 112 and the soft water outlet 114 are communicated, and the soft water at the soft water inlet 119 can flow along the path of the secondary water production flow channel 136, the secondary cavity 112 and the soft water outlet 114, so that the user can obtain soft water at the soft water outlet 114, realizing the water production function of the soft water valve.

[0235] It can be understood that the secondary driving part 135 drives the secondary valve core 134 to move, so that the secondary valve core 134 is in the first secondary valve position, at this time the secondary valve core 134 can communicate the secondary cavity 112 and the soft water inlet 119, so that the water at the soft water inlet 119 can flow into the secondary cavity 112.

[0236] It can be understood that when the secondary valve core 134 is in the first secondary valve position, the secondary water production flow channel 136 of the secondary valve core 134 is communicated, and the soft water inlet 119 is communicated through the secondary water production flow channel 136 and the secondary cavity 112.

[0237] Among them, the secondary valve core 134 includes a secondary static valve piece 132 and a secondary dynamic valve piece 131, the secondary dynamic valve piece 131 is connected to the secondary driving part 135, the secondary static valve piece 132 is fixed with the valve housing 110, the secondary static valve piece 132 is configured with a softening connection hole 1322, the secondary dynamic valve piece 131 is configured with a secondary valve water inlet 1314, the softening connection hole 1322 is communicated with the soft water inlet 119, the secondary valve water inlet 1314 is communicated with the secondary cavity 112, and the softening connection hole 1322 and the secondary valve water inlet 1314 are communicated to form the secondary water production flow channel 136.

[0238] It can be understood that, in the water production mode, the secondary drive part 135 drives the secondary movable valve plate 131 to rotate, so that the relative position between the secondary movable valve plate 131 and the secondary static valve plate 132 changes, the secondary water inlet 1314 and the softening connection hole 1322 are communicated to form a secondary water production flow channel 136, at this time the soft water inlet 119 can be communicated with the secondary cavity 112 through the secondary water production flow channel 136, so that the water at the soft water inlet 119 can flow into the secondary cavity 112. In the partial non-water production mode, for example, the salt suction mode, the secondary drive part 135 drives the secondary movable valve plate 131 to rotate relative to the secondary static valve plate 132, so that the secondary water inlet 1314 and the softening connection hole 1322 are no longer communicated, that is, the secondary water production flow channel 136 at this time is disconnected, and the soft water inlet 119 cannot be communicated with the secondary cavity 112 through the secondary water production flow channel 136, so as to realize the operation of other modes of the soft water valve.

[0239] It can be understood that, in the water production mode, the secondary drive part 135 drives the secondary movable valve plate 131 to move to the first secondary valve position, so that the secondary movable valve plate 131 and the secondary static valve plate 132 can form a communicated secondary water production flow channel 136, and the soft water inlet 119 and the secondary cavity 112 can be communicated through the secondary water production flow channel 136.

[0240] In some cases, the secondary cavity 112 and the soft water inlet 119 can be always communicated, without the need for regulation by the secondary valve core 134 (not shown in the figure), which can simplify the structure of the secondary valve core 134. Regarding the water injection mode:

[0241] Reference Figures 19 to 21 、 Figures 36 to 39 and Figure 20 It can be understood that the valve housing 110 is provided with a salt tank connection port 1110 for connecting the salt tank 200, and in the water injection mode, the water injection flow channel 137 of the secondary valve core 134 communicates the soft water inlet 119 with the salt tank connection port 1110, so that the soft water inlet 119, the water injection flow channel 137 and the salt tank connection port 1110 are communicated. By adjusting the state of the secondary valve assembly 130, the softening device 190 is communicated with the salt tank 200, and the softened soft water of the softening device 190 is delivered into the salt tank 200, so that the salt in the salt tank 200 is dissolved to pass the salt solution into the softening device 190.

[0242] Specifically, in the water injection mode, the secondary drive part 135 drives the secondary valve core 134 to rotate to the second secondary valve position, and the water injection flow channel 137 of the secondary valve core 134 communicates the salt suction and injection hole 1324 with the salt tank connection port 1110, and the salt suction and injection hole 1324 can be communicated with the soft water inlet 119 or the secondary cavity 112, and the water at the salt suction and injection hole 1324 can be directly or indirectly delivered to the salt tank connection port 1110, and then delivered from the salt tank connection port 1110 into the salt tank 200, to realize the water injection operation of the salt tank 200.

[0243] It should be noted that the way water flows from the soft water inlet 119 to the salt tank connection port 1110: when the state of the main cavity 111 and the main valve assembly 120 can be the same as the water making mode, raw water can flow along the path of the raw water inlet 113, the main water making flow channel 126, the main cavity 111, the raw water outlet 118 and the soft water inlet 119, so that the raw water is transported to the soft water outlet 114 after being converted into soft water by the softening device 190, and the soft water is transported from the soft water outlet 114 to the salt tank connection port 1110, realizing the operation of injecting soft water into the salt tank 200.

[0244] The way water flows from the auxiliary cavity 112 to the salt tank connection port 1110: when the flow channel of the main valve assembly 120 is switched so that the raw water inlet 113 and the auxiliary cavity 112 are communicated, that is, at this time the water at the raw water inlet 113 can be directly transported into the auxiliary cavity 112, and the auxiliary cavity 112 and the salt tank connection port 1110 can be communicated by the auxiliary valve core 134, realizing the operation of injecting raw water into the salt tank 200.

[0245] It should be noted that the water at the soft water inlet 119 can directly flow to the water injection flow channel 137, that is, the soft water inlet 119 is directly communicated with the water injection flow channel 137; the water at the soft water inlet 119 can also flow to the water injection flow channel 137 after passing through the auxiliary cavity 112, that is, the soft water inlet 119, the auxiliary cavity 112 and the water injection flow channel 137 are communicated.

[0246] That is, the soft water inlet 119 is communicated with the water injection flow channel 137 through the auxiliary cavity 112, realizing the communication of the soft water inlet 119, the auxiliary cavity 112 and the water injection flow channel 137, so that the water at the soft water inlet 119 can flow to the water injection flow channel 137 after passing through the auxiliary cavity 112, and the water at the soft water inlet 119 can also flow to the water injection flow channel 137 and the auxiliary cavity 112. That is, it can be ensured that water will flow into the auxiliary cavity 112 in the water injection mode, and the water in the auxiliary cavity 112 can flow out of 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 cavity 112 at this time is soft water treated by the softening device 190, that is, the user still has soft water available in the water injection mode.

[0247] It can be understood that in the water injection mode, the way the raw water inlet 113 sends water to the softening device 190 can be the same as the above-mentioned water making mode, that is, the raw water inlet 113 and the raw water outlet 118 can be communicated by the main cavity 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 making flow channel 126, the main cavity 111 and the raw water outlet 118 into the softening device 190, which helps to simplify the structure of the main cavity 111 and the main valve assembly 120.

[0248] With the main valve core 124 equipped with a main water control channel 126, the main water control 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. Figures 9 to 14 As shown, details will not be repeated here. It can be understood that the difference between the water injection mode and the water production mode lies in the different states of the secondary valve assembly 130. When the soft water valve switches between the water injection mode and the water production mode, the main valve core 124 is in the first main valve position. By switching the position of the secondary valve core 134, the two modes can be switched. In the water production mode, the position of the secondary valve core 134 can be understood as the first secondary valve position; in the water injection mode, the position of the secondary valve core 134 can be understood as the second secondary valve position. The secondary drive unit 135 drives the secondary valve core 134 to rotate, causing it to switch between the first and second secondary valve positions. That is, the secondary drive unit 135 drives the secondary valve core 134 to rotate until the water injection channel 137 is connected or disconnected, and the secondary water production channel 136 is also connected or disconnected accordingly. The secondary valve assembly 130 has a simple structure and is easy to operate.

[0249] The auxiliary valve core 134 includes an auxiliary stationary valve plate 132 and an auxiliary moving valve plate 131. The auxiliary moving valve plate 131 is connected to the auxiliary drive unit 135, and the auxiliary stationary valve plate 132 is fixed to the valve housing 110. The auxiliary stationary valve plate 132 has a softening connection hole 1322 and a brine suction and water injection hole 1324. The softening connection hole 1322 communicates with the soft water inlet 119, and the brine suction and water injection hole 1324 communicates with the brine tank connection port 1110. The softening connection hole 1322 and the brine suction and water injection hole 1324 communicate to form a water injection channel 137. The auxiliary stationary valve plate 132 and the auxiliary moving valve plate 131 cooperate to connect the softening device 190 and the brine tank 200, so as to smoothly send the soft water in the softening device 190 into the brine tank 200. The structure is simple.

[0250] Specifically, in the water injection mode, the auxiliary drive unit 135 drives the auxiliary valve plate 131 to rotate to the second auxiliary valve position, causing a relative positional change between the auxiliary valve plate 131 and the auxiliary stationary valve plate 132. This connects the softening connection hole 1322 and the brine injection hole 1324, forming a water injection channel 137. The soft water inlet 119 connects to the brine tank connection port 1110 through the water injection channel 137, allowing water at the soft water inlet 119 to be transported to the brine tank connection port 1110 via the water injection channel 137. In some non-water injection modes, the auxiliary drive unit 135 drives the auxiliary valve plate 131 to rotate, causing the brine injection hole 1324 and the softening connection hole 1322 to become disconnected. This prevents the soft water inlet 119 from connecting to the brine tank connection port 1110 via the water injection channel 137, thus preventing water at the soft water inlet 119 from flowing to the brine tank connection port 1110. This allows the soft water valve to operate in different modes.

[0251] The auxiliary valve core 134 includes an auxiliary static valve plate 132 and an auxiliary dynamic valve plate 131. The auxiliary dynamic valve plate 131 is connected to the auxiliary driving part 135, and the auxiliary static valve plate 132 is fixed to the valve housing 110. The auxiliary static valve plate 132 is configured with a softened connection hole 1322 and a salt suction and water injection hole 1324. The softened connection hole 1322 is communicated with the softened water inlet 119, and the salt suction and water injection hole 1324 is communicated with the auxiliary cavity 112 and the salt tank connecting port 1110. The auxiliary dynamic valve plate 131 is configured with an auxiliary valve water inlet 1314, which is communicated with the auxiliary cavity 112. The softened connection hole 1322 and the salt suction and water injection hole 1324 are communicated through the auxiliary valve water inlet 1314 to form a water injection flow channel 137.

[0252] It can be understood that the softened connection hole 1322 and the salt suction and water injection hole 1324 are communicated through the auxiliary valve water inlet 1314 to form the water injection flow channel 137 by driving the auxiliary dynamic valve plate 131 to rotate through the auxiliary driving part 135. At this time, the water injection flow channel 137 can not only communicate the softened water inlet 119 and the salt tank connecting port 1110, but also communicate the softened water inlet 119 and the auxiliary cavity 112, so that the softened water at the softened water inlet 119 can flow to the salt tank connecting port 1110 or flow to the softened water outlet 114 after passing through the auxiliary cavity 112.

[0253] When the water softener valve includes a jet device 160, the salt suction and water injection hole 1324 is communicated with the salt tank connecting port 1110 through the jet device 160, that is, the water injection flow channel 137 is communicated with the salt tank connecting port 1110 through the jet device 160. By switching the state of the auxiliary valve core 134, the water softener valve can also suck the salt solution from the salt tank 200 through the jet device 160 and send it into the softening device 190, that is, in the water injection mode and the salt suction mode, the flow paths of water between the softening device 190, the jet device 160 and the salt tank 200 are different. In the water injection mode, water flows from the softening device 190 to the jet device 160 through the auxiliary valve assembly 130, or flows from the auxiliary cavity 112 to the jet device 160, and then flows into the salt tank connecting port 1110 through the jet device 160. In the salt suction mode, the raw water in the auxiliary cavity 112 drives the salt solution in the salt tank 200 into the jet device 160, and then sends the mixed solution in the jet device 160 into the softening device 190 through the auxiliary valve assembly 130. It should be noted that the flow channels communicated in the auxiliary valve assembly 130 are different in the water injection mode and the salt suction mode. Of course, in the water injection mode, the water flowing through the water injection flow channel 137 of the auxiliary valve assembly 130 to the salt tank connecting port 1110 can also not pass through the jet device 160 but directly flow into the salt tank connecting port 1110. At this time, the salt suction and water injection hole 1324 can be directly communicated with the salt tank connecting port 1110.

[0254] In the above embodiments, in the water injection mode, the path of the raw water inlet 113 to the secondary valve assembly 130 is the same as that in the water production mode, that is, the softened water is delivered from the softening device 190 to the salt tank connection port 1110 through the soft water valve control, but the water injection mode can also introduce raw water into the salt tank connection port 1110 in other ways. In some cases, in the water injection mode, the main cavity 111 can not be involved in the work, by adjusting the state of the secondary valve assembly 130, in the case of the raw water inlet 113 communicating with the secondary cavity 112, the secondary valve assembly 130 is adjusted to make the secondary cavity 112 communicate with the salt tank connection port 1110, or the soft water outlet 114 communicates with the salt tank connection port 1110 in other ways, and the raw water is introduced into the salt tank 200 through the salt tank connection port 1110 (not shown in the figure), so that the salt in the salt tank 200 is dissolved to make brine into the softening device 190. For example, the secondary cavity 112 of the valve housing 110 communicates with the raw water inlet 113, and the water injection channel 137 communicates the secondary cavity 112 with the salt tank connection port 1110, which can send the raw water in the secondary cavity 112 into the salt tank 200, and also can dissolve the brine in the salt tank 200, at this time, the secondary valve inlet 1314 of the secondary valve piece 131 communicates with the salt injection hole 1324, and the raw water in the secondary cavity 112 flows along the secondary valve inlet 1314, the salt injection hole 1324 and the salt tank connection port 1110, at this time, the main valve assembly 120 can disconnect or communicate the main cavity 111 with the raw water inlet 113.

[0255] The above describes the water injection mode, after the water injection in the salt tank 200 is completed, the salt in the salt tank 200 is dissolved for a predetermined time, which can be 1 hour, 2 hours, etc., this process can be understood as the salt tank 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 tank 200 is dissolved, the brine is sent into the softening device 190, that is, the salt absorption mode is executed, which is described below.

[0256] Salt absorption mode:

[0257] Referring to Figures 22 to 34 , Figures 36 to 39 and Figures 22 to 24 , it can be understood that the valve housing 110 is connected with the ejector 160, the valve housing 110 is provided with the salt tank connection port 1110, the salt solution in the salt tank connection port 1110 is sucked into the salt tank 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 secondary valve assembly 130, and the waste water after the softening material in the softening device 190 is regenerated is discharged.

[0258] In the salt absorption mode, combined with Figures 36 to 39 and Figure 35As shown, the valve housing 110 is connected with a fluidic device 160, the fluidic device 160 is provided with a fluidic flow channel, the valve housing 110 is provided with a salt tank connecting port 1110, in the salt suction mode, the fluidic inlet 161 of the fluidic flow channel is communicated with the raw water inlet 113 through the secondary valve core 134, the suction inlet 163 of the fluidic flow channel is communicated with the salt tank connecting port 1110, the fluidic outlet 162 of the fluidic flow channel is communicated with the soft water inlet 119 through the secondary valve core 134. The soft water inlet 119 is communicated with the softening device 190, and the raw water inlet 113, the fluidic inlet 161, the fluidic outlet 162 and the soft water inlet 119 are communicated, so that the raw water in the raw water inlet 113 can flow into the fluidic flow channel, the raw water and the salt water in the salt tank connecting port 1110 are mixed in the fluidic flow channel to obtain a mixed liquid, and the mixed liquid is introduced into the softening device 190 along the fluidic outlet 162 and the soft water inlet 119. Among them, the suction inlet 163 is located on the flow path between the fluidic inlet 161 and the fluidic outlet 162, the raw water flows from the fluidic inlet 161 to the fluidic outlet 162, the raw water flows in the fluidic flow channel, so that a negative pressure is generated at the suction inlet 163, under the action of the negative pressure, the salt solution in the salt tank 200 is sucked into the fluidic inlet 161 and the fluidic flow channel along the salt tank connecting port 1110 and the suction inlet 163, so that the salt solution and the raw water are mixed in the fluidic flow channel to obtain a mixed solution, and the mixed solution flows to the softening device 190 along the fluidic outlet 162, completing the process of sending the mixed solution into the softening device 190.

[0259] It can be understood that in the salt suction mode, the secondary valve core 134 is located at the third secondary valve position under the drive of the secondary drive part 135, so that the fluidic inlet 161 of the fluidic flow channel is communicated with the raw water inlet 113, and the fluidic outlet 162 of the fluidic flow channel is communicated with the soft water inlet 119. The raw water can flow along the path of the raw water inlet 113, the fluidic inlet 161, the fluidic outlet 162 and the soft water inlet 119.

[0260] In some cases, the fluidic inlet 161 is communicated with the secondary cavity 112 through the secondary valve core 134, and the secondary cavity 112 is communicated with the raw water inlet 113, so that the fluidic inlet 161 is communicated with the raw water inlet 113. The raw water flows from the raw water inlet 113 to the secondary cavity 112, and then flows from the secondary cavity 112 to the fluidic flow channel through the fluidic inlet 161, realizing the communication between the fluidic inlet 161 and the raw water inlet 113. Of course, the fluidic inlet 161 can also be communicated with the raw water inlet 113 in other ways, for example, the fluidic inlet 161 is directly communicated with the raw water inlet 113, or is communicated with the raw water inlet 113 through other valve assemblies, without the need to pass through the secondary valve assembly 130.

[0261] It can be understood that when the jet flow inlet 161 is communicated with the raw water inlet 113 through the auxiliary cavity 112, the raw water will first flow into the auxiliary cavity 112, part of the raw water in the auxiliary cavity 112 will flow into the jet flow channel, and another part of the raw water in the auxiliary cavity 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 suction 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 flow outlet 162, and the soft water inlet 119 is disconnected from the auxiliary cavity 112 through the auxiliary valve assembly 130, that is, the soft water inlet 119 and the auxiliary cavity 112 are not communicated, and the salt water at the soft water inlet 119 will not flow into the auxiliary cavity 112, ensuring that the water in the auxiliary cavity 112 is raw water rather than salt water, and ensuring that the user has raw water available when the soft water valve is in the salt suction mode.

[0262] In some cases, the auxiliary driving part 135 drives the auxiliary valve 131 to rotate, so that the auxiliary valve water inlet 1314 is misaligned with the softening connection hole 1322, and the auxiliary valve 131 blocks the softening connection hole 1322 and the auxiliary cavity 112. When in the salt suction mode, the auxiliary valve water inlet 1314 is misaligned 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, which can avoid the salt water at the soft water inlet 119 polluting the water at the auxiliary cavity 112.

[0263] Wherein, the first blowdown flow channel 127 of the main valve core 124 communicates the raw water outlet 118 with the blowdown port 115 of the valve shell 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 along the jet flow channel, the soft water inlet 119, the raw water outlet 118, the first blowdown flow channel 127 and the blowdown port 115. The mixed liquid obtained by mixing the raw water and the salt water flows along the jet flow outlet 162 and the soft water inlet 119 into the softening device 190, and the mixed liquid is regenerated after the softening device 190 and is discharged from the raw water outlet 118. Since the raw water outlet 118 is communicated with the blowdown port 115 of the valve shell 110 through the first blowdown flow channel 127, the mixed liquid will flow along the raw water outlet 118, the first blowdown flow channel 127 and the blowdown port 115 and be discharged from the valve shell 110.

[0264] In some cases, the raw water outlet 118 is communicated with the first blowdown flow channel 127, for example, through the main cavity 111, that is, the mixed liquid will flow along the raw water outlet 118, the main cavity 111 and the first blowdown flow channel 127. Of course, the raw water outlet 118 can also be directly communicated with the first blowdown flow channel 127, so that the structure of the soft water valve is simpler.

[0265] In some cases, the mixed solution of the jet flow 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 cleans the softening material in the softening device 190, and the cleaned sewage is drained to the sewage outlet 115 through the auxiliary valve assembly 130. The path of the mixed solution into the softening device 190 and the sewage out of the softening device 190 is various, which can be selected as needed.

[0266] In the case where the raw water in the auxiliary cavity 112 is drained to the jet flow inlet 161 through the auxiliary valve assembly 130, the mixed solution of the jet flow outlet 162 is drained to the soft water inlet 119 through the auxiliary valve assembly 130, and the sewage of the raw water outlet 118 is drained to the sewage outlet 115 through the main valve assembly 120, the first salt suction channel 1341 of the auxiliary valve core 134 and the second salt suction channel 1342 are communicated, the first salt suction channel 1341 communicates the auxiliary cavity 112 and the jet flow inlet 161, the second salt suction channel 1342 communicates the jet flow outlet 162 and the soft water inlet 119, the first sewage discharge channel 127 of the main valve core 124 communicates the raw water outlet 118 and the sewage passage 1114 of the valve shell 110 (the end of the sewage passage 1114 forms the sewage outlet 115), the raw water in the auxiliary cavity 112 enters the jet flow inlet 161 along the first salt suction channel 1341, the raw water and the salt solution are mixed in the jet flow channel to obtain a mixed solution, and the mixed solution flows out along the jet flow outlet 162, the soft water inlet 119, the raw water outlet 118, the first sewage discharge channel 127 and the sewage outlet 115, thereby achieving slow washing of the softening device 190.

[0267] It should be noted that when the first salt suction channel 1341 communicates the auxiliary cavity 112 and the jet flow inlet 161, the auxiliary cavity 112 and the raw water inlet 113 are communicated, so that the raw water at the raw water inlet 113 can flow to the jet flow channel along the auxiliary cavity 112 and the jet flow inlet 161. Of course, the first salt suction channel 1341 can also directly communicate the jet flow inlet 161 and the raw water inlet 113, so that the raw water at the raw water inlet 113 can be transported to the jet flow channel through the jet flow inlet 161.

[0268] In some cases, the valve shell 110 is provided with a filter passage 1115, and a filter is arranged in the filter passage 1115. The filter passage 1115 communicates the jet flow inlet 161 and the first salt suction channel 1341, so that the raw water flowing out of the first salt suction channel 1341 is filtered through the filter passage 1115 before being sent to the softening device 190 along the jet flow channel and the second salt suction channel 1342. The filtered raw water is used for regeneration of the softening material.

[0269] The filter element can be a filter screen, filter core, filter membrane, etc., and the structure of the filter element is various. The filter element can be fixed in the filter channel 1115, and the filter element can be fixed by clamping, fastener connection, threaded connection, etc., and the fixing mode of the filter element is various and can be selected as required. The filter element can be detachably connected to the filter channel 1115, which is convenient for replacement.

[0270] The valve shell 110 is provided with a mounting channel 1136, and the fluidic device 160 can be detachably mounted in the mounting channel 1136, which is convenient for dismounting the fluidic device 160. In some cases, as shown in Figure 40 and Figures 36 to 39 The valve shell 110 is integrally formed with the mounting channel 1136, which is convenient for machining the valve shell 110 and can also simplify the structure of the water softener. Alternatively, the valve shell 110 is directly connected with the fluidic device 160 (not shown in the figure), and the fluidic device 160 does not need to be mounted in the channel, and the fluidic device 160 is more independent. When the valve shell 110 is provided with the filter channel 1115, the filter channel 1115 can also be formed by a structure member independent of the valve shell 110, such as a pipe member detachably connected to the valve shell 110. The pipe member can be connected with the independent fluidic device 160 to form an integral whole, thereby reducing the number of parts. Based on the foregoing, the mounting modes of the fluidic device 160 and the filter element in the valve shell 110 are various and can be selected as required, which will not be listed one by one here.

[0271] It should be noted that, as shown in Figures 36 to 39 The fluidic device 160 can be a Venturi structure, the left side of the valve shell 110 is provided with the fluidic device 160, two channels are opened on the left side of the valve shell 110, the lowermost channel is the filter channel 1115 for mounting the filter element and filtering impurities to prevent the fluidic device 160 from being blocked, and the upper channel is the mounting channel 1136 for mounting the fluidic device 160. The side of the fluidic device 160 is provided with a salt tank connecting port 1110 perpendicular to the water flow direction of the pipe. The salt tank connecting port 1110 can be connected with the salt tank connecting port 1110 through a hose, and salt is sucked during regeneration.

[0272] As shown in Figure 24 The fluidic device 160 is provided with a first flow channel 164 and a second flow channel 165. One end of the first flow channel 164 is communicated with the suction port 163, and the other end of the first flow channel 164 forms the jet inlet 161. One end of the second flow channel 165 is communicated with the suction port 163, and the other end of the second flow channel 165 forms the jet outlet 162. The end of the first flow channel 164 is provided with a jet flow limiting member 166 to adjust the flow of the fluidic device 160.

[0273] Next, the structure of the sub-valve core 134 forming the first salt suction flow channel 1341 and the second salt suction flow channel 1342 will be described.

[0274] As shown in Figure 41As shown, the auxiliary valve core 134 includes an auxiliary static valve plate 132 and an auxiliary dynamic valve plate 131, the auxiliary dynamic valve plate 131 is connected to the auxiliary driving part 135, the auxiliary static valve plate 132 is fixed with the valve housing 110, the auxiliary static valve plate 132 is configured with a salt suction and water injection hole 1324, a brine hole 1323 and a softened water connection hole 1322, the auxiliary dynamic valve plate 131 is configured with an auxiliary valve water inlet 1314 and an auxiliary valve first groove 1311, the auxiliary valve water inlet 1314 is communicated with the auxiliary cavity 112, the salt suction and water injection hole 1324 is communicated with the jet flow inlet 161, the auxiliary valve water inlet 1314 and the salt suction and water injection hole 1324 are communicated to form a first salt suction flow channel 1341, the brine hole 1323 is communicated with the jet flow outlet 162, the softened water connection hole 1322 is communicated with the softened water inlet 119, the brine hole 1323 is communicated through the auxiliary valve first groove 1311 and the softened water connection hole 1322 to form a second salt suction flow channel 1342.

[0275] It can be understood that the auxiliary valve water inlet 1314 and the salt suction and water injection hole 1324 are communicated to form the first salt suction flow channel 1341, so that the first salt suction flow channel 1341 can be communicated with the auxiliary cavity 112 and the jet flow inlet 161, and the water in the auxiliary cavity 112 can flow into the jet flow channel through the first salt suction flow channel 1341. The brine hole 1323 and the softened water connection hole 1322 are communicated through the auxiliary valve first groove 1311 to obtain the second salt suction flow channel 1342, so that the second salt suction flow channel 1342 can be communicated with the jet flow outlet 162 and the softened water inlet 119, and the mixed liquid after the raw water and the brine mixed in the jet flow channel can flow to the softened water inlet 119 through the second salt suction flow channel 1342, and then the mixed liquid enters the softening device 190 from the softened water inlet 119, so as to realize the conveying of the brine to the softening device 190. That is, in the salt suction mode, the raw water flows along the path of the auxiliary cavity 112, the auxiliary valve water inlet 1314, the salt suction and water injection hole 1324, the jet flow inlet 161, the jet flow outlet 162 and the softened water inlet 119, and after the raw water enters the jet flow inlet 161, under the negative pressure of the raw water, the salt solution in the salt tank 200 enters the suction inlet 163 through the salt tank connection port 1110, 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 path of the jet flow outlet 162, the brine hole 1323, the auxiliary valve first groove 1311 and the softened water connection hole 1322, and the mixed solution enters the softening device 190 through the softened water connection hole 1322, and according to the above-mentioned path, the salt solution is conveyed.

[0276] The raw water of the auxiliary valve water inlet 1314 comes from the auxiliary cavity 112, and the raw water in the auxiliary cavity 112 comes from the raw water inlet 113.

[0277] In some cases, reference is made to Figure 42 and Figure 23As shown, the valve housing 110 comprises a communication passage 1113, which communicates the sub-cavity 112 and the raw water inlet 113, so that the raw water can be delivered to the sub-cavity 112 along the raw water inlet 113 and the communication passage 1113, which can simplify the flow path of the raw water delivery and the structure of the water softener valve.

[0278] It can be understood that the outlet of the communication passage 1113 communicates with the sub-cavity 112, and the inlet of the communication passage 1113 is adjustable by the raw water inlet 113 through the main valve core 124. By driving the main valve core 124 through the main driving part 125, the main valve core 124 can be switched between the third main valve position of communicating the communication passage 1113 and the raw water inlet 113 and the first main valve position of communicating the main cavity 111 and the raw water inlet 113. When the main valve core 124 is at the first main valve position, the raw water inlet 113 is disconnected from the inlet of the communication passage 1113, which realizes the adjustable connection between the communication passage 1113 and the raw water inlet 113, and realizes the adjustable connection between the sub-cavity 112 and the raw water inlet 113.

[0279] In the salt suction mode, the communication passage 1113 communicates with the raw water inlet 113 through the main valve core 124, and the raw water flows into the sub-cavity 112 through the raw water inlet 113, the main valve core 124 and the communication passage 1113. Then part of the water in the sub-cavity 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 and the brine in the salt tank 200 are mixed, and the mixed solution after the raw water and the brine are mixed 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-cavity 112 can flow to the soft water outlet 114, so that the user can still have water available in the salt suction mode, at which time the raw water is taken from the soft water outlet 114.

[0280] The above describes the structure and state of the sub-valve assembly 130 in the salt suction mode, that is, the path of the mixed solution 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.

[0281] Reference Figure 21 As shown, in the salt suction mode, the first sewage flow channel 127 of the main valve core 124 is communicated, and the first sewage flow channel 127 communicates the raw water outlet 118 and the sewage passage 1114 of the valve housing 110, so that the raw water outlet 118, the first sewage flow channel 127 and the sewage passage 1114 are communicated.

[0282] It can be understood that after the mixed liquid of the raw water and the brine enters the softening device 190, the sewage flows along the path of the raw water outlet 118, the first sewage flow channel 127 and the sewage passage 1114, so that the sewage can be discharged from the valve housing 110.

[0283] It should be noted that the raw water outlet 118 can be directly communicated with the first blow-off flow channel 127, or communicated with the first blow-off flow channel 127 through the main cavity 111. When the raw water outlet 118 is communicated with the first blow-off flow channel 127 through the main cavity 111, the sewage flows out of the valve housing 110 along the raw water outlet 118, the main cavity 111, the first blow-off flow channel 127 and the blow-off passage 1114, at this time, the main water flow channel 126 is disconnected, the main cavity 111 is disconnected with the raw water inlet 113, so that the sewage in the main cavity 111 will not mix with the raw water, which can avoid the raw water at the raw water inlet 113 being polluted, and ensure that the raw water flowing into the auxiliary cavity 112 from the raw water inlet 113 is raw water rather than sewage, and the auxiliary cavity 112 is communicated with the soft water outlet 114, that is, the water used by the user is the water in the auxiliary cavity 112, so that it is ensured that the user uses the raw water rather than the sewage when the soft water valve is in the salt suction mode.

[0284] It should be noted that the flow path of the main valve core 124 is the same in the backwashing mode and the salt suction mode, so that the soft water valve can discharge the sewage out of the valve housing 110 in the salt suction mode and the backwashing mode, and the two modes share one blow-off flow path, which can simplify the structure of the main valve core 124.

[0285] The main valve core 124 includes the main static valve plate 122 and the main dynamic valve plate 121, the main dynamic valve plate 121 is connected to the main driving part 125, the main static valve plate 122 is fixed to the valve housing 110, the main static valve plate 122 is provided with a main valve blow-off hole 1222, the main dynamic valve plate 121 is provided with a main valve water inlet 1211, the main valve blow-off hole 1222 is communicated with the blow-off passage 1114, the main valve water inlet 1211 is communicated with the raw water outlet 118, and the main valve water inlet 1211 and the main valve blow-off hole 1222 are communicated to form the first blow-off 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 blow-off flow channel 127, and the raw water outlet 118 and the blow-off passage 1114 are communicated through the first blow-off flow channel 127, so that the sewage in the valve housing 110 can be discharged.

[0286] It can be understood that the first blow-off flow channel 127 formed by the communication of the main valve water inlet 1211 and the main valve blow-off hole 1222 can communicate the raw water outlet 118 and the blow-off passage 1114, so that the sewage can flow along the raw water outlet 118, the main valve water inlet 1211, the main valve blow-off hole 1222 and the blow-off passage 1114 and be discharged out of the valve housing 110, thereby realizing the discharge of the sewage.

[0287] Of course, the main static valve plate 122 can also be provided with two main valve blow-off holes 1222 (not shown in the figure), one main valve blow-off hole 1222 is communicated with the raw water outlet 118, and the other main valve blow-off hole 1222 is communicated with the blow-off port 115 of the valve housing 110, and the two blow-off holes are communicated through the groove of the main dynamic valve plate 121, which can also discharge the sewage in the softening device 190.

[0288] The following describes the water injection mode performed by the auxiliary valve core 134, assuming that the valve housing 110 has a jet flow channel and other related structures.

[0289] In water injection mode, refer to Figures 9 to 14 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 brine tank connection 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 brine tank connection port 1110, and then enters the brine tank 200 through the brine tank connection port 1110.

[0290] It should be noted that the path for sending soft water into the brine tank 200 and the flow path of soft water after it flows out of the softening device 190 are provided here. The path for raw water to flow into the softening device 190 is not described. The path for raw water to flow into the softening device 190 can be referred to the water production mode described above, that is, the main water production channel 126 is connected to send the raw water at the raw water inlet 113 to the raw water outlet 118. Of course, it can also be done through other paths.

[0291] Understandably, the jet inlet 161 is connected to the soft water inlet 119, allowing soft water to flow into the jet channel through the jet inlet 161. At this time, the jet outlet 162 is closed, and the suction inlet 163 is connected to the salt tank connection port 1110, allowing water to flow from the jet inlet 161 to the suction inlet 163, and then to the salt tank connection port 1110.

[0292] The auxiliary valve core 134 includes an auxiliary stationary valve plate 132 and an auxiliary moving valve plate 131. The auxiliary moving valve plate 131 is connected to the auxiliary drive unit 135. The auxiliary stationary valve plate 132 is fixed to the valve housing 110. The auxiliary stationary valve plate 132 is constructed with a softening connection hole 1322 and a brine suction water injection hole 1324. The auxiliary moving valve plate 131 is constructed with a auxiliary valve inlet 1314. The brine suction water injection hole 1324 is connected to the jet inlet 161. The softening connection hole 1322 is connected to the soft water inlet 119. The softening connection hole 1322, the auxiliary valve inlet 1314 and the brine suction 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 brine suction water injection hole 1324. The water in the jet channel flows to the brine tank connection port 1110 through the suction port 163. The softening connection hole 1322, the auxiliary valve inlet 1314, the brine 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 channel through the jet inlet 161.

[0293] When the soft water is delivered into the jet flow channel, the jet outlet 162 is closed, the jet inlet 161 is communicated with the salt suction water hole 1324, and the suction inlet 163 is communicated with the salt tank connecting port 1110, so that the soft water flows into the jet inlet 161 through the salt suction water hole 1324, and the water in the jet flow channel flows to the salt tank connecting port 1110 through the suction inlet 163.

[0294] Based on the fact that the jet outlet 162 corresponds to the salt water hole 1323, the closing of the jet outlet 162 can be achieved by moving the secondary movable valve disc 131 to close the salt water hole 1323, so that the water in the jet flow channel enters the salt tank connecting port 1110 through the suction inlet 163.

[0295] In combination with the above description of the types of the main valve assembly 120 and the secondary valve assembly 130, when the secondary valve assembly 130 is a disc valve, the secondary driving part 135 is used to drive the secondary movable valve disc 131 to rotate relative to the secondary static valve disc 132, so as to switch the secondary valve core 134 between the position where the water injection flow channel 137 is communicated and the position where the first salt suction flow channel 1341 and the second salt suction flow channel 1342 are communicated.

[0296] The secondary driving part 135 is used to drive the secondary movable valve disc 131 to rotate relative to the secondary static valve disc 132, so as to switch the secondary valve core 134 between the position where the water injection flow channel 137 is communicated and the position where the jet outlet 162 and the soft water inlet 119 are communicated.

[0297] It can be understood that the secondary movable valve disc 131 is driven to rotate by the secondary driving part 135, so as to switch the secondary valve core 134 between the second secondary valve position corresponding to the water injection mode and the third secondary valve position corresponding to the salt suction mode. When the soft water valve is in the water injection mode, i.e., the secondary valve core 134 is in the second secondary valve position, the water injection flow channel 137 of the secondary valve core 134 is communicated, so that the soft water inlet 119 can be communicated with the water injection flow channel 137 and the jet inlet 161, and the soft water at the soft water inlet 119 can flow into the jet flow channel through the water injection flow channel 137 and the jet inlet 161, and then flow to the salt tank connecting port 1110, thereby achieving the water injection operation on the salt tank 200. When the soft water valve is in the salt suction mode, i.e., the secondary valve core 134 is in the third secondary valve position, the secondary valve core 134 communicates the jet outlet 162 and the soft water inlet 119, so that the mixed solution after the raw water and the salt water in the jet flow channel are mixed can flow from the jet outlet 162 to the soft water inlet 119, and then flow into the softening device 190, thereby achieving the salt water injection operation on the softening device 190.

[0298] It should be noted that when the secondary spool 134 is in the second secondary valve position, the primary spool 124 is in the first primary valve position, and when the secondary spool 134 is in the third secondary valve position, the primary spool 124 is in the third primary valve position. That is, when the water softener valve switches between the water filling mode and the salt sucking mode, the primary drive portion 125 drives the primary spool 124 to change between the first primary valve position and the third primary valve position to realize the switching between the water filling mode and the salt sucking mode.

[0299] After the water filling mode and the salt sucking mode, the regeneration of the softening material in the softening device 190 is realized, and the softening device 190 also needs to be cleaned, that is, the water softener valve can control the cleaning mode to be executed, the cleaning mode includes at least one of the backwashing mode and the forward washing mode, and the softening device 190 and the water softener valve can be cleaned.

[0300] The backwashing mode will be described below.

[0301] Reference Figures 25 to 27 and Figures 9 to 14 As shown in FIG. 8, in the backwashing mode, the backwashing flow passage of the secondary spool 134 is communicated, the backwashing flow passage communicates the soft water inlet 119 and the raw water inlet 113, and the primary drive portion 125 is used to drive the primary spool 124 to move to the first blowdown flow passage 127, and the first blowdown flow passage 127 communicates the raw water outlet 118 and the blowdown port 115 of the valve housing 110.

[0302] It can be understood that the communication of the backwashing flow passage and the soft water inlet 119 and the raw water inlet 113 makes the raw water flow along the raw water inlet 113 and the soft water inlet 119, and then flows into the softening device 190 from the soft water inlet 119, and flows out of the softening device 190 from the raw water outlet 118, to realize the backwashing operation of the softening device 190. Since the first blowdown flow passage 127 communicates the raw water outlet 118 and the blowdown port 115 of the valve housing 110, the sewage flowing out of the raw water outlet 118 can be discharged out of the valve housing 110 along the first blowdown flow passage 127 and the blowdown port 115, to realize the blowdown of the water softener valve.

[0303] Among them, the secondary spool 134 includes a secondary static valve piece 132 and a secondary dynamic valve piece 131, the secondary dynamic valve piece 131 is connected to the secondary drive portion 135, the secondary static valve piece 132 is fixed with the valve housing 110, the secondary static valve piece 132 is configured with a softening connection hole 1322, the secondary dynamic valve piece 131 is configured with a secondary valve water inlet 1314, the softening connection hole 1322 is communicated with the soft water inlet 119, the secondary valve water inlet 1314 is communicated with the raw water inlet 113, and the secondary valve water inlet 1314 is communicated with the softening connection hole 1322 to form a backwashing flow passage.

[0304] It can be understood that, by driving the secondary spool 134 to move to the first secondary valve position through the secondary driving part 135, the secondary valve water inlet 1314 and the softening connection hole 1322 are communicated to form a backwashing flow channel, the backwashing flow channel can be communicated with the raw water inlet 113 and the soft water inlet 119, so that the raw water inlet 113, the backwashing flow channel and the soft water inlet 119 are communicated, and the raw water can flow into the softening device 190 along the raw water inlet 113, the backwashing flow channel and the soft water inlet 119.

[0305] It should be noted that the secondary valve water inlet 1314 can be communicated with the secondary cavity 112, and the secondary cavity 112 is communicated with the raw water inlet 113 through the main spool 124, so that the raw water inlet 113, the secondary cavity 112, the secondary valve water inlet 1314, the softening connection hole 1322 and the soft water inlet 119 are communicated, and the raw water can flow along the path of the raw water inlet 113, the secondary cavity 112, the secondary valve water inlet 1314, the softening connection hole 1322 and the soft water inlet 119.

[0306] In the backwashing mode, the backwashing flow channel is communicated with the soft water inlet 119 and the secondary cavity 112, and the secondary cavity 112 is communicated with the raw water inlet 113, so that the raw water inlet 113, the secondary cavity 112, the backwashing flow channel and the soft water inlet 119 are communicated. The raw water can flow along the path of the raw water inlet 113, the secondary cavity 112, the backwashing flow channel and the soft water inlet 119, and when the raw water flows into the secondary cavity 112, part of the raw water flows along the path of the backwashing flow 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 the raw water at the soft water outlet 114, and the user can still have water available when the soft water valve is in the backwashing state.

[0307] It should be noted that the backwashing mode and the salt suction mode are both communicated with the first blowdown flow channel 127 to discharge water outward, that is, in the backwashing mode and the salt suction mode, the state of the main spool 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.

[0308] It should be noted that in the salt suction mode and the backwashing mode, the path of the raw water flowing into the secondary cavity 112 is the same, and the main valve assembly 120 is used to communicate the raw water inlet 113 and the secondary cavity 112, and the main valve assembly 120 is also used to disconnect the raw water inlet 113 and the main cavity 111, which can simplify the structure of the main valve assembly 120 and the flow path arrangement in the soft water valve.

[0309] It can also be understood that in the backwash mode and the salt suction mode, the state of the main valve assembly 120 is the same, and water is drained to the outside of the water softener valve through the main valve assembly 120, but the flow path of the water is not limited to the first drain flow channel 127 described above, and can also be a structure not shown in the figure, such as the technical solution of “the main static valve piece 122 is provided with two drain holes” described above. For details, reference can be made to the above description, which will not be repeated here. That is, in the process of switching from the salt suction mode to the backwash mode, the state of the auxiliary valve assembly 130 can be controlled, and the state of the main valve assembly 120 can remain unchanged.

[0310] It should be noted that in the backwash mode and the water production mode, the state of the auxiliary valve assembly 130 can be the same, and the auxiliary valve core 134 is used to communicate the soft water inlet 119 and the auxiliary cavity 112, and the switching of the position of the main valve core 124 can realize the switching of the water softener valve between the water production mode and the backwash mode. In the backwash mode, the auxiliary valve assembly 130 communicates the soft water inlet 119 and the auxiliary cavity 112 in order to make the raw water in the auxiliary cavity 112 flow to the softening device 190 through the soft water inlet 119; in the water production mode, the auxiliary valve assembly 130 communicates the soft water inlet 119 and the auxiliary cavity 112 in order to make the soft water at the soft water inlet 119 flow to the soft water outlet 114 through the auxiliary cavity 112. By sharing one state of the auxiliary valve core 134 in the backwash mode and the water production mode, the structure of the auxiliary valve assembly 130 can be simplified.

[0311] The above description is for the backwash mode, and the forward washing mode will be described below.

[0312] Reference Figures 28 to 30 and Figure 17 As shown in FIG. 1, the valve housing 110 is provided with a drain port 115, and 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 to communicate, and the forward washing flow channel 138 communicates the soft water inlet 119 and the drain port 115. By driving the auxiliary valve core 134 to move to the fourth auxiliary valve position by the auxiliary driving part 135, the forward washing flow channel 138 is communicated, and at this time, the main water production flow channel 126 of the main valve core 124 communicates 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 the soft water inlet 119 and the drain port 115, so that water can flow along the path of the soft water inlet 119 and the drain port 115, so as to realize the discharge of sewage from the valve housing 110 in the forward washing mode.

[0313] It can be understood that the main valve core 124 is in the first main valve position, and the switching of the position of the auxiliary valve core 134 realizes the switching of the water softener valve among the water making mode, the water filling mode and the forward washing mode. The main valve core 124 is in the first main valve position in the water making mode, the water filling mode and the forward washing mode, 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 valve core 134 is driven by the auxiliary driving part 135 to switch the position, so as to realize the switching of the water softener valve among the water making mode, the water filling mode and the forward washing mode, so that the control of the water softener valve is more simple, and the structure of the water softener valve is simplified.

[0314] The auxiliary valve core 134 includes an auxiliary static valve piece 132 and an auxiliary dynamic valve piece 131. The auxiliary dynamic valve piece 131 is connected to the auxiliary driving part 135, and the auxiliary static valve piece 132 is fixed to the valve housing 110. The auxiliary static valve piece 132 is configured with a softening connection hole 1322 and an auxiliary valve blowdown hole 1321. The softening connection hole 1322 is communicated with the soft water inlet 119, and the auxiliary valve blowdown hole 1321 is communicated with the blowdown outlet 115. The softening connection hole 1322 and the auxiliary valve blowdown hole 1321 are communicated through the auxiliary valve core 134 to form a forward washing flow channel 138.

[0315] It can be understood that the forward washing flow channel 138 formed by the communication of the softening connection hole 1322 and the auxiliary valve blowdown hole 1321 can communicate the soft water inlet 119 and the blowdown outlet 115, so that the soft water inlet 119, the forward washing flow channel 138 and the blowdown outlet 115 are communicated. 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 forward washing operation is performed on the softening device 190. The sewage after cleaning the softening device 190 is discharged from the soft water outlet 114, and then flows along the path of the soft water inlet 119, the forward washing flow channel 138 and the blowdown outlet 115 and is discharged from the valve housing 110, so as to realize the blowdown in the forward washing mode.

[0316] The auxiliary dynamic valve piece 131 is configured with an auxiliary valve water inlet 1314. The auxiliary valve water inlet 1314 communicates with the auxiliary cavity 112. The softening connection hole 1322 is communicated through the auxiliary valve water inlet 1314 and the auxiliary valve blowdown hole 1321 to form the forward washing flow channel 138.

[0317] It can be understood that the softened connection hole 1322 is communicated with the auxiliary valve water inlet 1314 and the auxiliary valve drain hole 1321, and the auxiliary valve water inlet 1314 is communicated with the auxiliary cavity 112, so that the water at the soft water inlet 119 can flow to the drain hole 115 along the forward washing flow channel 138, and can flow to the auxiliary cavity 112 along the softened connection hole 1322 and the auxiliary valve water inlet 1314. Since the backwashing operation of the soft water valve has been performed before the forward washing mode, the sewage generated in the forward washing mode has a low salt content and can be used. When the user needs to use water in the forward washing mode, the water in the auxiliary cavity 112 is discharged through the soft water outlet 114 for the user to use.

[0318] It should be noted that the water at the soft water inlet 119 can also flow into the auxiliary cavity 112 along the softened connection hole 1322 and the auxiliary valve water inlet 1314, and then part of the water in the auxiliary cavity 112 flows along the path of the auxiliary valve water inlet 1314 and the auxiliary valve drain hole 1321 to the drain hole 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.

[0319] It should be noted that in the forward washing mode, the softened connection hole 1322 is communicated with the auxiliary valve water inlet 1314, and at this time the softened connection hole 1322 and the auxiliary valve water inlet 1314 are used to form the forward washing flow channel 138 and the auxiliary water production flow channel 136. That is, the auxiliary valve core 134 plays a role of communicating the soft water inlet 119 and the auxiliary cavity 112 in the forward washing mode and the water production mode, and the auxiliary valve core 134 has a flow channel formed by the communication of the softened connection hole 1322 and the auxiliary valve water inlet 1314, but in the forward washing mode, the auxiliary valve core 134 is also communicated with the auxiliary valve drain hole 1321 and the auxiliary valve water inlet 1314.

[0320] In the forward washing mode, the forward washing flow channel 138 communicates the soft water inlet 119 with the drain passage 1114 of the valve housing 110, the drain hole 115 is formed at the end of the drain passage 1114, the raw water outlet 118 is communicated with the raw water inlet 113, and the raw water in the soft water valve enters the softening device 190 through the raw water outlet 118. The water in the softening device 190 enters the soft water valve through the soft water inlet 119, is discharged through the forward washing flow channel 138 of the auxiliary valve core 134 and the drain passage 1114 of the valve housing 110, and realizes the discharge of the sewage for cleaning the softening device 190.

[0321] It can be understood that, in the case that the main valve core 124 is provided with the main water production flow channel 126, in the forward washing mode, the raw water outlet 118 and the raw water inlet 113 are communicated through the main water production flow channel 126. It can also be understood that, in the forward washing mode, the state of the main valve core 124 is the same as that in the water production mode, that is, the main valve core 124 is in the first main valve position. When the main valve core 124 is in the first main valve position, the water production mode and the forward washing mode can be switched by adjusting the state of the auxiliary valve core 134.

[0322] The auxiliary driving part 135 is used to drive the auxiliary valve core 134 to rotate to communicate or disconnect the forward washing flow channel 138, that is, the auxiliary driving part 135 can realize the state switching of the auxiliary valve core 134 by driving the auxiliary moving valve piece 131 to rotate relative to the auxiliary static valve piece 132, and further realize the function mode switching of the water softener.

[0323] Among them, after the water softener executes the salt suction mode, the softening device 190 needs to be cleaned, and the cleaning mode of the softening device 190 can be at least one of the above-mentioned backwashing mode and forward washing mode. When the cleaning mode includes the backwashing mode or the forward washing mode, the softening device 190 can be cleaned by the backwashing mode or the forward washing mode after the salt suction mode is executed; when the cleaning mode includes the backwashing mode and the forward washing mode, after the salt suction mode is ended, the backwashing mode or the forward washing mode can be executed first, which can be selected as needed. In some cases, after the salt suction mode, the backwashing mode is executed first, and then the forward washing mode is executed.

[0324] It should be noted that the holes of the main static valve piece 122 and the holes of the auxiliary static valve piece 132 are all provided with openings corresponding to the holes and communicated with the holes on the valve housing 110, so as to ensure that water can flow out through the holes of the static valve piece.

[0325] The above describes the flow paths corresponding to each mode of the water softener. Next, the control mode of the water softener is described.

[0326] Based on the above, 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.

[0327] It can be understood that the main driving part 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 driving part 135 is used to drive the auxiliary valve core 134 to switch between multiple auxiliary valve positions, so as to switch the water softener between the water production mode, the water injection mode, the salt suction mode and the cleaning mode.

[0328] Reference Figure 20 , Figure 23 , Figure 26 , Figure 29 and Figure 17As shown, the main valve core 124 switches between the first main valve position and the third main valve position, that is, the position of the main valve core 124 is the same in at least two modes, which can simplify the regulation mode of the main valve core 124.

[0329] In some cases, as shown in Figure 20 , Figure 29 and Figure 23 , the main valve core 124 is in the first main valve position, the main water flow channel 126 of the main valve core 124 is connected to the main cavity 111 and the raw water inlet 113, at the same time, the main cavity 111 is connected to the raw water outlet 118, that is, the raw water in the raw water inlet 113 can be transported to the raw water outlet 118 through the main valve core 124, realizing the process of transporting raw water to the softening device 190, at this time, the position switching of the auxiliary valve core 134 realizes the switching of the water softener valve between the water making mode and the water filling mode.

[0330] When the cleaning mode includes the forward washing mode, the main valve core 124 is in the first main valve position, and the water softener valve can be switched to the forward washing mode through the position switching of the auxiliary valve core 134. The structure of the "main water flow channel 126" can refer to the above contents about the water making mode, the water filling mode and the forward washing mode, for example, the main valve water inlet 1211 of the main driving valve piece 121 and the main valve water hole 1221 of the main static valve piece 122 are connected to form the main water flow channel 126.

[0331] In other cases, as shown in Figure 26 and Figure 18 , the main valve core 124 is in the third main valve position, the first drain flow channel 127 of the main valve core 124 is connected, the main water flow channel 126 is disconnected, and the first drain flow channel 127 is connected to the raw water outlet 118 and the drain passage 1114 of the valve shell 110, so that the sewage is discharged along the raw water outlet 118, the first drain flow channel 127 and the drain passage 1114. In the third main valve position, the main valve core 124 is used to guide the sewage in the softening device 190 out. In the mode that needs to discharge sewage, 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 cavity 112 through the main valve core 124, and then the water flow is controlled through the auxiliary valve core 134, realizing the operation of sending water to the salt tank 200 and sending water to the softening device 190.

[0332] When the cleaning mode includes the backwash mode, the main valve core 124 is in the third main valve position, and the switching of the position of the auxiliary valve core 134 realizes the switching of the water softener valve between the salt suction mode and the backwash mode. It can be understood that, in the salt suction mode and the backwash mode, the main valve core 124 delivers raw water to the auxiliary cavity 112, the auxiliary valve core 134 delivers water at the auxiliary cavity 112 to the softening device 190, and the main valve core 124 guides the sewage in the softening device 190 out. In these two modes, the flow channels communicated by the auxiliary valve core 134 are different. In the salt suction mode, the first salt suction flow channel 1341 and the second salt suction flow channel 1342 of the auxiliary valve core 134 are communicated, and in the backwash mode, the backwash flow channel of the auxiliary valve core 134 is communicated.

[0333] The above describes two positions of the main valve assembly 120. Next, the modes will be described in combination with the positions of the main valve assembly 120 and the auxiliary valve assembly 130.

[0334] Reference is made to Fig. 1 and Fig. 2. Figure 21 As shown, in the water production mode, the auxiliary valve core 134 is in the first auxiliary valve position, and the main valve core 124 is in the first main valve position. The main valve core 124 is used to guide water to the softening device 190, and the auxiliary valve core 134 is used to make the soft water inlet 119 communicated with the soft water outlet 114, so as to ensure the soft water outlet. In addition, the auxiliary valve core 134 is also used to disconnect the soft water inlet 119 from other flow channels, so as to avoid the water in other flow channels polluting the soft water.

[0335] Reference is made to Fig. 1 and Fig. 2. Figure 24 As shown, in the water injection mode, the auxiliary valve core 134 is in the second auxiliary valve position, and the main valve core 124 is in the first main valve position. The main valve core 124 is used to guide water to the softening device 190, and the auxiliary valve core 134 is used to guide the soft water in the softening device 190 into the salt tank connecting port 1110. In the second auxiliary valve position, the water injection flow channel 137 of the auxiliary valve core 134 is communicated, and the water injection flow channel 137 communicates the soft water inlet 119 with the salt tank connecting port 1110. In addition, in the second auxiliary valve position, the auxiliary valve core 134 also communicates 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, and then the water can flow from the auxiliary cavity 112 to the soft water outlet 114, so as to ensure that the user has water available in the water injection mode.

[0336] Reference is made to Fig. 1 and Fig. 2. Figure 27As shown, in the salt draw mode, the sub-valve core 134 is at the third sub-valve position, and the main valve core 124 is at the third main valve position. The main valve core 124 is used to isolate the raw water inlet 113 from the main cavity 111, and the sub-valve core 134 is used to pass the raw water into the jet device 160, and under the flow power of the raw water, draw the salt solution in the salt tank connecting port 1110 into the jet device 160, and send the mixed solution in the jet device 160 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 third sub-valve position, the first salt draw flow channel 1341 and the second salt draw flow channel 1342 of the sub-valve core 134 are communicated, the jet inlet 161 of the jet flow channel is communicated with the sub-cavity 112 through the first salt draw flow channel 1341, the suction inlet 163 of the jet flow channel is communicated with the salt tank connecting port 1110, and the jet outlet 162 of the jet flow channel is communicated with the soft water inlet 119 through the second salt draw flow channel 1342. In the salt draw mode, the main valve core 124 is also used to communicate the raw water inlet 113 with the sub-cavity 112, so that the raw water can flow into the sub-cavity 112. In addition to flowing into the jet device 160, the raw water in the sub-cavity 112 can also flow into the soft water outlet 114, so that the user has raw water available in the salt draw mode, and the sub-valve core 134 is also used to separate the soft water inlet 119 and the sub-cavity 112, which can avoid the pollution of the salt water at the soft water inlet 119 to the raw water in the sub-cavity 112.

[0337] Reference Figure 30 As shown, when the cleaning mode includes the backwashing mode, in the backwashing mode, the sub-valve core 134 is at the first sub-valve position, and the main valve core 124 is at the third main valve position. The sub-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 sub-valve position, the backwashing flow channel of the sub-valve core 134 is communicated, and the backwashing flow channel communicates the soft water inlet 119 with the sub-cavity 112. The main valve core 124 is at the third main valve position, and the main valve core 124 isolates the raw water inlet 113 from the main cavity 111, and communicates the raw water inlet 113 with the sub-cavity 112, so that the raw water can enter the sub-cavity 112. Then part of the raw water flows into the softening device 190 from the sub-cavity 112, and the other part of the raw water flows into the soft water outlet 114, so that the user has water available when backwashing.

[0338] Reference Figure 44As shown, when the cleaning mode includes the forward washing mode, in the forward washing mode, the sub-valve core 134 is at the fourth sub-valve position, the main valve core 124 is at 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 sub-valve core 134. In the third sub-valve position, the forward washing flow channel 138 of the sub-valve core 134 is communicated, and the forward washing flow channel 138 communicates the softened water inlet 119 and the blowdown passage 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 reverse washing mode, that is, the soft water valve is first cleaned to reduce the salt content of the water in the soft water valve. Then control the soft water valve to be in the forward washing mode, at this time the salt content of the water in the soft water valve is already low, the user can use, the forward washing operation can be understood as a bottom-up cleaning step, that is, after the reverse washing mode, the water in the soft water valve is in a normal use state, so that in the forward washing mode, the user can use water.

[0339] When the soft water valve includes the water production mode, the water filling mode, and the salt absorption mode, the sub-driving part 135 is used to drive the sub-valve core 134 to rotate and switch between the first sub-valve position, the second sub-valve position, and the third sub-valve position, which are sequentially arranged along the circumference of the sub-valve core 134, facilitating position adjustment of the sub-valve core 134. The cleaning mode includes the forward washing mode, and the sub-driving part 135 is used to drive the sub-valve core 134 to rotate and switch between the first sub-valve position, the second sub-valve position, the third sub-valve position, and the fourth sub-valve position, which are sequentially arranged along the circumference of the sub-valve core 134.

[0340] For the state and function mode of the soft water valve, the structure of each flow channel is not described here, and can be combined with the above description of each mode.

[0341] 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 filled into the salt tank 200 to execute the water filling mode, then the salt absorption mode is executed to send a mixed solution with a regenerating function into the softening device 190, and then the cleaning mode is executed. When the cleaning mode includes the forward washing mode and the reverse washing mode, the reverse washing mode can be executed first, and then the forward washing mode can be executed.

[0342] In 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 water injection mode is required, the position of the main valve core 124 does not need to be adjusted, and the auxiliary valve core 134 is adjusted to the second auxiliary valve position. After water injection mode, the brine tank 200 needs to perform a preset brine dissolution time to obtain a brine solution. At this time, it can be switched back to water production mode, the position of the main valve core 124 does not need to be adjusted, and the auxiliary valve core 134 can return to the first auxiliary valve position. After brine dissolution is completed, the brine suction mode is executed, and the main valve core 124 needs to be adjusted to the third main valve position, and the auxiliary valve core 134 needs to be adjusted to the third auxiliary valve position. Taking the backwash mode after brine suction mode as an example, 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, the forward wash mode is executed, and 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 and continue to perform the water production function.

[0343] In some cases, refer to Figures 31 to 34 As shown, the main valve core 124 also includes a second main valve position, which is adapted to switch 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 from the main chamber 111 and blocks the raw water inlet 113 from the secondary chamber 112. The secondary drive unit 135 controls the secondary valve core 134 to switch positions. At this time, the water from the raw water inlet 113 will not enter the softening valve, and the water supply to the main chamber 111, the secondary chamber 112, and the softening device 190 will stop. The pressure of the water flow on the secondary valve core 134 in the secondary chamber 112 will decrease, 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 easier. This can reduce the driving force provided by the secondary drive unit 135 to the secondary valve plate 131, reduce power consumption, reduce the wear of the secondary valve assembly 130, and help extend the life of the secondary valve assembly 130 and the softening valve.

[0344] The main valve core 124 is in the second main valve position, which can control the auxiliary drive unit 135 to drive the auxiliary valve core 134 to switch between multiple auxiliary valve positions. Before the auxiliary valve core 134 needs to switch positions, switching the position of the main valve core 124 to the second main valve position can reduce the resistance of water pressure to the position switching of the auxiliary valve core 134, making the position switching of the auxiliary valve core 134 more effortless and easier to operate.

[0345] Understandably, when switching from water production mode to water injection mode, the position of the main valve core 124 needs to be adjusted to the second main valve position first, and then the position of the auxiliary valve core 134 needs to be adjusted to the second auxiliary valve position. After the auxiliary valve core 134 is adjusted, the main valve core 124 returns to the first main valve position, and the water injection process can be executed. After the water injection is completed, the main valve core 124 is adjusted to the second main valve position again, and then the auxiliary valve core 134 returns to the first auxiliary valve position. Then the main valve core 124 is adjusted back to the first main valve position. At this time, the brine tank connection port 1110 is in the brine dissolving state, the soft water valve is in the water production mode, and the user can take water. After the salt dissolution is complete, the salt absorption mode is activated. First, the main valve core 124 is adjusted to the second main valve position, then the auxiliary valve core 134 is adjusted to the third auxiliary valve position, and then the main valve core 124 is adjusted back to the third main valve position to execute the salt absorption mode. After the salt absorption mode is completed, the system is switched to the backwash mode. First, the main valve core 124 is adjusted to the second main valve position, then the auxiliary valve core 134 is adjusted to the first auxiliary valve position, and then the main valve core 124 is adjusted back to the third main valve position to execute the backwash mode. After the backwash mode, the system is switched to the forward wash mode. First, the main valve core 124 is adjusted to the second main valve position, then the auxiliary valve core 134 is adjusted to the fourth auxiliary valve position, and then the main valve core 124 is adjusted back to the first main valve position to execute the forward wash mode. After the forward washing mode is completed, it is necessary to switch 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.

[0346] The above content describes the water production mode of the soft water 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 soft water valve is applied to a water softener, the user can obtain soft water with a single hardness from the water softener. That is, the hardness of the soft water obtained by the water softener is not convenient to adjust. Therefore, the following content provides a technical solution for adjustable soft water hardness.

[0347] Understandably, reference Figure 45 as well as Figure 46 and Figure 34 As shown, the valve body 110 has a raw water channel and a soft water channel. The raw water channel is located between the raw water inlet 113 and the main chamber 111, and the soft water channel is located between the soft water outlet 114 and the secondary chamber 112. A bypass valve 140 connects the raw water channel and the soft water channel, allowing them to be connected or disconnected. When the bypass valve 140 connects the raw water channel and the soft water channel, the raw water in the raw water inlet 113 can flow into the soft water channel under the inlet pressure, thereby adjusting the hardness of the water outlet 114 by introducing raw water into the soft water channel.

[0348] The bypass valve 140 is connected between the raw water channel and the soft water channel, and is installed flexibly, which helps to reduce the size of the soft water valve. In some cases, when the soft water device does not produce water, the bypass valve 140 can also connect the raw water channel and the soft water channel, and the user can get raw water from the soft water outlet 114.

[0349] The bypass valve 140 has various structures and can be selected as needed. Referring to Figure 41 The bypass valve 140 can be a disc valve, which is simple in structure and convenient to disassemble and assemble.

[0350] Referring to Figure 34 The first shell part 1140 of the valve shell 110 forms a raw water channel, and the second shell part 1141 of the valve shell 110 forms a soft water channel. The first shell part 1140 is provided with a first communication port 1134 communicating with the raw water channel, and the second shell part 1141 is provided with a second communication port 1135 communicating with the soft water channel. The valve shell 110 further forms a bypass cavity, and the bypass valve 140 core is located in the bypass cavity. The bypass valve 140 core is used to adjust the on-off of the first communication port 1134 and the second communication port 1135.

[0351] Referring to Figure 32 The bypass valve 140 core can include a bypass static valve plate 142 and a bypass dynamic 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 communicates with the first communication port 1134, and the second bypass opening 1422 corresponds to and communicates with the second communication port 1135. The bypass dynamic valve plate 141 can move to close the first bypass opening 1421 and the second bypass opening 1422, so that the bypass valve 140 is closed and the raw water channel and the soft water channel are disconnected. The bypass dynamic valve plate 141 can move to open the first bypass opening 1421 and the second bypass opening 1422, so that the bypass valve 140 is opened and the raw water channel and the soft water channel are connected. The bypass dynamic valve plate 141 includes a first fan-shaped part 1411 and a second fan-shaped part 1412. The first fan-shaped part 1411 is used to open and close the first bypass opening 1421, and the second fan-shaped part 1412 is used to open and close the second bypass opening 1422. The structure is simple and convenient to process.

[0352] The bypass dynamic valve plate 141 is connected to a bypass motor 143, which is used to drive the bypass dynamic valve plate 141 to rotate. By rotating the bypass dynamic valve plate 141, the state of the bypass valve 140 is switched.

[0353] Referring to Figure 33 and Figure 35As shown, the valve housing 110 is provided with a bypass cavity, in one form, the valve housing 110 is formed with a bypass groove 1132, the bypass groove 1132 is communicated with a first communication port 1134 and a second communication port 1135, the bypass valve 140 core can be installed in the opening of the bypass groove 1132, and the opening of the bypass groove 1132 is closed by a cover 1133 to form a bypass cavity, the structure of the bypass cavity is simple, which facilitates the molding of the valve housing 110 and the disassembly and assembly of the bypass valve 140. The bypass static valve plate 142 is sealed to the inner wall of the valve housing 110 by the bypass sealing ring 144.

[0354] Reference Figures 1 to 6 As shown, the user can also take raw water through the water softening valve, at this time, the main valve core 124 can be in the second main valve position.

[0355] Next, the structure of the valve housing 110 will be described.

[0356] Reference Figures 40 to 42 、 Figure 4 As shown, the valve housing 110 includes a first housing portion 1140, a second housing portion 1141 and a third housing portion 1142, the first housing portion 1140 is formed with a raw water passage, the second housing portion 1141 is formed with a soft water passage, and the third housing portion 1142 is formed with the main cavity 111 and the auxiliary cavity 112. The third housing portion 1142 is also formed with a raw water outlet 118 and a soft water inlet 119, and the raw water outlet 118 and the soft water inlet 119 are located on the same side of the third housing portion 1142 to facilitate the installation of the softening device 190.

[0357] The first housing portion 1140, the second housing portion 1141 and the third housing portion 1142 are fixed as an integrated valve housing 110, which simplifies the structure of the valve housing 110.

[0358] The first housing portion 1140 and the second housing portion 1141 are arranged side by side, and the third housing portion 1142 is located at one end of the first housing portion 1140 and the second housing portion 1141. The main cavity 111 and the auxiliary cavity 112 are arranged side by side, the main cavity 111 is located on the same side (right side) of the first housing portion 1140, and the auxiliary cavity 112 is located on the same side (left side) of the second housing portion 1141. The structure of the valve housing 110 is more reasonable.

[0359] Among them, the valve housing 110 (such as the third housing portion 1142) is provided with a communication passage 1113 for communicating the raw water inlet 113 and the auxiliary cavity 112, the communication passage 1113 is connected with the raw water inlet 113 through the main valve core 124 and can be connected or disconnected, that is, whether the raw water inlet 113 is communicated with the auxiliary cavity 112 can be controlled. The outlet of the communication passage 1113 is communicated with the auxiliary cavity 112, and the inlet of the communication passage 1113 is connected or disconnected with the raw water inlet 113 through the main valve core 124.

[0360] The valve shell 110 is provided with a softening connection port 1121 corresponding to and communicating with a softening connection hole 1322 of the auxiliary static valve plate 132. The softening connection port 1121 can communicate the softening connection hole 1322 with the soft water inlet 119. By switching the position of the auxiliary moving valve plate 131, the softening device 190 and other flow paths can be adjusted to be connected or disconnected. The softening connection port 1121 is located between the soft water inlet 119 and the auxiliary valve core 134, and is arranged adjacent to the auxiliary static valve plate 132, so as to facilitate the direct correspondence and communication between the softening connection hole 1322 and the softening connection port 1121. The auxiliary valve core 134 is located between the softening connection port 1121 and the auxiliary cavity 112, so that the auxiliary valve core 134 can control the communication between the softening connection port 1121 and the auxiliary cavity 112, that is, the communication between the auxiliary cavity 112 and the soft water inlet 119. The side of the softening connection hole 1322 facing the soft water inlet 119 can keep the softening connection hole 1322 in normal communication with the softening connection port 1121, that is, the soft water inlet 119, so as to simplify the structure of the auxiliary valve core 134. By controlling the rotation of the auxiliary moving valve plate 131, the softening connection hole 1322 can be switched between the state of communicating with the auxiliary cavity 112 and the state of not communicating with the auxiliary cavity 112. When the softening connection hole 1322 does not need to communicate with the auxiliary cavity 112, the auxiliary moving valve plate 131 can block the softening connection hole 1322 and the auxiliary cavity 112.

[0361] The third shell part 1142 is further provided with a raw water outlet 118 and a soft water inlet 119. The third shell part 1142 is provided with a softening connection part 1143 for connecting the softening device 190. The softening device 190 can be connected to the valve shell 110 by at least one of the following connection modes: threaded connection, clamping, plug-in connection, fastener connection, etc. Figure 5 and Figure 41 As shown in the figures, the valve shell 110 is provided with external threads, and the softening device 190 is provided with internal threads. The softening device 190 is connected to the valve shell 110 by screwing the threaded structure, which is convenient for disassembly and assembly.

[0362] The third shell part 1142 is further provided with a salt suction and water injection port 1119 corresponding to and communicating with a salt suction and water injection hole 1324 of the auxiliary static valve plate 132. The salt suction and water injection port 1119 communicates with the jet inlet 161 of the jet flow channel. The third shell part 1142 is further provided with a brine port 1120 corresponding to and communicating with a brine hole 1323 of the auxiliary static valve plate 132. The brine port 1120 can communicate with the jet outlet 162 of the jet flow channel. By switching the position of the auxiliary moving valve plate 131, the jet flow channel and other flow paths can be adjusted to be connected or disconnected.

[0363] The auxiliary valve core 134 is located between the salt suction water inlet 1119 and the auxiliary cavity 112, so as to control the opening and closing of the salt suction water inlet 1119 and the auxiliary cavity 112, that is, to control the opening and closing between the auxiliary cavity 112 and the jet flow channel. The salt suction water inlet 1119 is located adjacent to the auxiliary static valve piece 132, so as to directly correspond to the communication between the salt suction water inlet 1119 and the salt suction water hole 1324, and to simplify the communication structure between the salt suction water inlet 1119 and the salt suction water hole 1324. The salt suction water hole 1324 is located towards the side of the salt suction water inlet 1119, so that the salt suction water hole 1324 and the salt suction water inlet 1119 can be kept in normal communication, and the structure of the auxiliary valve core 134 can be simplified. By controlling the rotation of the auxiliary dynamic valve piece 131, the salt suction water hole 1324 can be switched between the state of being communicated with the auxiliary cavity 112 and the state of not being communicated with the auxiliary cavity 112. When the salt suction water hole 1324 does not need to be communicated with the auxiliary cavity 112, the auxiliary dynamic valve piece 131 can block the salt suction water hole 1324 and the auxiliary cavity 112.

[0364] The salt water inlet 1120 is located adjacent to the auxiliary static valve piece 132, so as to directly correspond to the communication between the salt water inlet 1120 and the salt water hole 1323, and to simplify the communication structure between the salt water inlet 1120 and the salt water hole 1323. The salt water hole 1323 is located towards the side of the salt water inlet 1120, so that the salt water inlet 1120 and the salt water hole 1323 can be kept in normal communication, and the structure of the auxiliary valve core 134 can be simplified. By controlling the rotation of the auxiliary dynamic valve piece 131, the salt water hole 1323 can be switched between the state of being communicated with the jet flow channel and the state of not being communicated with the jet flow channel. When the salt water hole 1323 does not need to be communicated with the jet flow channel, the auxiliary dynamic valve piece 131 can block the salt water hole 1323 and the jet flow channel.

[0365] The valve housing 110 (such as the third housing part 1142) is provided with at least one of the first blowdown opening 1125 and the second blowdown opening 1124. The first blowdown opening 1125 corresponds to and is communicated with the main valve blowhole 1222. By controlling the position of the main dynamic valve piece 121, the opening and closing of the first blowdown opening 1125 and the corresponding flow channel can be realized, and sewage can be discharged through the first blowdown opening 1125. The second blowdown opening 1124 corresponds to and is communicated with the auxiliary valve blowhole 1321. By controlling the position of the auxiliary dynamic valve piece 131, the opening and closing of the second blowdown opening 1124 and the corresponding flow channel can be realized, and sewage can be discharged through the second blowdown opening 1124. The valve housing 110 is further provided with a blowdown channel 1114. The blowdown channel 1114 is communicated with at least one of the first blowdown opening 1125 and the second blowdown opening 1124. The end of the blowdown channel 1114 forms a blowdown port 115, so that the sewage can be discharged along the blowdown port 115, and the blowdown pipeline can be simplified. A flow limiting piece is arranged in the blowdown channel 1114 to adjust the blowdown flow rate. The blowdown channel 1114 is located above the valve housing 110.

[0366] It should be noted that during the regeneration of the softening material, the main valve drain hole 1222 and the auxiliary valve drain hole 1321 work independently and will not work simultaneously. When the two drain holes are connected to the drain port 115 through the drain channel 1114, when the main valve drain hole 1222 is working, the auxiliary valve drain hole 1321 is not working, and there will be no sewage backflow. Similarly, when the auxiliary valve drain hole 1321 is working, the main valve drain hole 1222 is not working.

[0367] refer to Figure 42 and Figure 61 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 has a first opening along its length. The cover 1116 covers the housing to close the first opening, thus forming a drain channel 1114 inside the valve housing 110. The end of the drain channel 1114 forms a drain outlet 115. The function of the drain channel 1114 is the same as described above and will not be repeated. The structure of the drain channel 1114 is not limited to the aforementioned structure and can be selected as needed. In the manufacturing of the soft water valve, the drain groove 1117 can be formed by directly opening the corresponding groove in the valve body 110. By covering the drain groove 1117 with the cover 1116 to close the first opening, the drain channel 1114 can be formed without forming an internal flow channel inside the valve body 110, making the mold manufacturing of the soft water valve head simpler and more convenient.

[0368] The valve housing 110 is provided with a main chamber communication hole 116, which connects the main chamber 111 and the raw water outlet 118. This allows water in the main chamber 111 to flow through the main chamber communication hole 116 to the raw water outlet 118, thus injecting water into the softening device 190. Water at the raw water outlet 118 can flow through the main chamber communication hole 116 into the main chamber 111. For example, wastewater from the softening device 190 can be discharged into the main chamber 111 and then discharged from the valve housing 110 through the drain channel 1114, thus performing a drain operation.

[0369] The main cavity communication hole 116 is formed in the wall surface 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 also can 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 achieving control of water injection into the softening device 190. In the salt absorption mode and the backwashing mode, the main valve core 124 can block the main cavity 111 and the raw water inlet 113, that is, the main cavity communication hole 116 and the raw water inlet 113, so that the sewage in the main cavity 111 flowing through the raw water outlet 118 and the main cavity communication hole 116 cannot flow to the raw water inlet 113, avoiding pollution of the raw water at the raw water inlet 113, and making the sewage flow to the sewage discharge channel 1114 through the main valve core 124, and finally discharged from the valve shell 110.

[0370] The valve shell 110 is configured with a water outlet flow channel 1112, and the wall surface of the auxiliary cavity 112 is provided with an auxiliary cavity communication hole 1111. The water outlet flow channel 1112 communicates the auxiliary cavity communication hole 1111 and the soft water outlet 114, and the auxiliary cavity communication hole 1111 is adjusted in communication and interruption with the soft water inlet 119 by the auxiliary valve core 134. The auxiliary cavity 112 is always in communication with the water outlet flow channel 1112 through the auxiliary cavity communication hole 1111, so that the water in the auxiliary cavity 112 can flow to the soft water outlet 114. The auxiliary cavity 112 can also be communicated with other flow channels through the flow channel switching of the auxiliary valve core 134 to achieve different functions. That is, the water in the auxiliary cavity 112 can flow along at least two flow channels. One of the flow channels is fixed as the flow channel of the auxiliary cavity 112 to the soft water outlet 114, and the other flow channel changes according to the control switching of the auxiliary valve core 134. As long as there is available water in the auxiliary cavity 112, there is available water at the soft water outlet 114. The auxiliary valve core 134 is arranged between the auxiliary cavity communication hole 1111 and the soft water inlet 119, so that the auxiliary valve core 134 can control the communication and interruption between the auxiliary cavity communication hole 1111 and the soft water inlet 119. In the salt absorption mode, the auxiliary valve core 134 blocks the auxiliary cavity communication hole 1111 and the soft water inlet 119, so as to avoid the salt water at the soft water inlet 119 flowing to the auxiliary cavity communication hole 1111, and to ensure that the water flowing to the soft water outlet 114 through the auxiliary cavity communication hole 1111 is not polluted by the salt water.

[0371] The auxiliary cavity communication hole 1111 and the soft water inlet 119 are respectively located on the two sides of the auxiliary valve core 134, so as to facilitate the auxiliary valve core 134 to control the communication and interruption between the auxiliary cavity communication hole 1111 and the soft water inlet 119.

[0372] It should be noted that the "two sides" in the "two sides of the auxiliary valve core 134" mentioned herein have the same meaning as the "two sides" in the "two sides of the auxiliary valve core 134" mentioned in the above, and will not be repeated.

[0373] Reference Figure 1As shown, four sub-valve positions corresponding to the left sub-valve core are marked by the cover plate, and the first sub-valve position, the second sub-valve position, the third sub-valve position and the fourth sub-valve position correspond to the numbers 1, 2, 3 and 4 in the figure; the right side of the cover plate marks three main valve positions corresponding to the main valve core, the first main valve position, the second main valve position and the third main valve position correspond to the numbers 1, 2 and 3 in the figure.

[0374] wherein the reference Figure 2 and Figures 7 to 30 As shown, the water outlet flow channel is formed, for example, at the front end of the sub-cavity 112.

[0375] Based on the above, the water softener is connected to the user's main pipeline through the water softener valve. The design concept of the water softener valve of the embodiment is to form two cavities, a main cavity 111 and a sub-cavity 112, in the valve housing 110, and each cavity is provided with a valve assembly, that is, the main cavity 111 is provided with a main valve assembly 120, and the sub-cavity 112 is provided with a sub-valve assembly 130. The main valve assembly 120 cooperates with the sub-valve assembly 130 to realize the function of the water softener valve, which can reduce the volume of the water softener valve, help to increase the soft water outlet flow of the water softener valve, and simplify the structure of the valve plate.

[0376] Wherein, the internal space and structure of the main cavity 111 and the sub-cavity 112 are basically the same, the difference between the two cavities is that the hole structure, number and position are different, that is, the functions of the main cavity 111 and the sub-cavity 112 are different. The structure of the two cavities is circular, and the left and right cavities are horizontally arranged. The axial direction of the cavity (the direction of the rotating shaft of the corresponding valve assembly) is horizontal, and the resin tank connected to the bottom is vertically distributed. Correspondingly, the resin tank is vertically placed in the water softener.

[0377] One side of the main cavity 111 and the sub-cavity 112 of the valve housing 110 is open, and the valve housing 110 is connected with a cover plate 1137, which seals the main cavity 111 and the sub-cavity 112.

[0378] The above describes the structure of the valve housing 110. The structure of the main valve assembly 120 and the sub-valve assembly 130 will be described below. Figure 40 and Figure 7 The structure of the main valve assembly 120 and the sub-valve assembly 130 will be described below.

[0379] Referring to Figure 9 , Figure 11 , Figure 12 and Figure 17 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 a main dynamic valve plate 121, the main static valve plate 122 is fixed in the main cavity 111 of the valve housing 110, and the main dynamic valve plate 121 is rotatably arranged in the main cavity 111.

[0380] Wherein, when the soft water valve is in different modes, the hole structure of the main static valve piece 122 is located in the groove (the groove here can be the first recess of the main valve or the process groove) of the main active valve piece 121 in the orthographic projection of the main active valve piece 121, and the hole structure of the main static valve piece 122 is closed by the groove, which can improve the sealing effect of the hole structure of the main static valve piece 122, reduce the contact area between the main static valve piece 122 and the main active valve piece 121, and facilitate the rotation of the main active valve piece 121 relative to the main static valve piece 122. The friction between the main active valve piece 121 and the main static valve piece 122, and the groove is communicated with the space on one side of the main static valve piece 122 through the hole structure of the main static valve piece 122, so that water can enter the groove, which can balance the water pressure and balance the pressure of the main active valve piece 121 and the main static valve piece 122.

[0381] Wherein, the main active valve piece 121 is provided with a main valve water inlet 1211 and a main valve first recess 1212; and the main static valve piece 122 is provided with a main valve water inlet hole 1221.

[0382] In some cases, the main static valve piece 122 is provided with a main valve sewage hole 1222, and in some cases, the main static valve piece 122 is provided with a main auxiliary connecting hole 1223.

[0383] In some cases, the main active valve piece 121 is also provided with a main valve second recess 1213, which can be understood as a main valve process groove.

[0384] Exemplarily, the main valve water inlet 1211, the main valve first recess 1212 and the main valve second recess 1213 are sequentially arranged along the circumference of the main active valve piece 121, which facilitates the rotation control of the main active valve piece 121; and the main valve water inlet hole 1221, the main valve sewage hole 1222 and the main auxiliary connecting hole 1223 are sequentially arranged along the circumference of the main static valve piece 122, which facilitates the cooperation of the holes of the main static valve piece 122 with the main active valve piece 121.

[0385] 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 piece 122, which ensures that the recess structure can surround the hole structure, so that the sealing of the hole structure is better, and water leakage can be avoided.

[0386] Exemplarily, reference is made to Figure 20 , Figure 29 and Figure 23As shown, in the water production mode, the water injection mode and the forward washing mode, the main valve water inlet 1211 and the main valve water inlet hole 1221 are communicated to form a main water production flow channel 126, which communicates 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 auxiliary connecting hole 1223 of the main static valve piece 122 is located in the main valve second groove 1213 in the orthographic projection of the main dynamic valve piece 121, that is, the main valve water inlet 1211 and the main valve first groove 1212 are both disconnected with the main auxiliary connecting hole 1223, the main valve blowdown hole 1222 is located in the main valve first groove 1212 in the orthographic projection of the main dynamic valve piece 121, that is, the main valve water inlet 1211 and the main valve second groove 1213 are both disconnected with the main auxiliary connecting hole 1223, the main auxiliary connecting hole 1223 is closed through the main valve second groove 1213, and the main valve blowdown hole 1222 is closed through the main valve first groove 1212, which can improve the sealing effect of the main auxiliary connecting hole 1223 and the main valve blowdown hole 1222.

[0387] For example, the opening area of the main valve second groove 1213 is greater than or equal to the opening area of the main auxiliary connecting hole 1223. It is ensured that the main valve second groove 1213 can surround the main auxiliary connecting hole 1223, so that the sealing of the main auxiliary connecting hole 1223 is better, and the water leakage can be avoided.

[0388] Reference Figure 26 and Figure 8 As shown, in the salt suction mode and the backwashing mode, the main valve water inlet hole 1221 is communicated with the main auxiliary connecting hole 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 hole 1221, the main valve first groove 1212 and the main auxiliary connecting hole 1223. Among them, part of the space of the main valve water inlet hole 1221 is communicated with the main valve first groove 1212, and part of the space of the main valve water inlet hole 1221 corresponds to the main valve second groove 1213 and is closed through the main valve second groove 1213. The main valve blowdown hole 1222 is communicated with the main valve water inlet 1211.

[0389] Reference Figure 10 , Figure 13 , Figure 14 and Figure 13 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 piece 132 and an auxiliary dynamic valve piece 131, the auxiliary static valve piece 132 is fixed in the auxiliary cavity 112 of the valve housing 110, and the auxiliary dynamic valve piece 131 is rotatably arranged in the auxiliary cavity 112.

[0390] In different modes of the soft water valve, at least part of the hole structure of the auxiliary stationary valve plate 132 is located in the groove of the auxiliary moving valve plate 131 (the groove here can be the auxiliary valve process groove, or the aforementioned auxiliary valve first groove) when projected onto the auxiliary moving valve plate 131. Taking the auxiliary valve process groove as an example, by sealing the hole structure of the auxiliary stationary valve plate 132 through the auxiliary valve process groove, the sealing effect of the hole structure of the auxiliary stationary valve plate 132 can be improved, the contact area between the auxiliary stationary valve plate 132 and the auxiliary moving valve plate 131 can be reduced, and the friction between the auxiliary moving valve plate 131 and the auxiliary stationary valve plate 132 can be reduced, making it easier to drive the auxiliary moving valve plate 131 to rotate relative to the auxiliary stationary valve plate 132. Moreover, the auxiliary valve process groove is connected to the space on one side of the auxiliary stationary valve plate 132 through the hole structure of the auxiliary stationary valve plate 132, so that water can enter the auxiliary valve process groove, which can play a role in balancing water pressure and balancing the pressure of the auxiliary moving valve plate 131 and the auxiliary stationary valve plate 132.

[0391] Among them, reference Figure 14 and Figure 1 As shown, the auxiliary valve plate 131 is provided with an auxiliary valve inlet 1314 and an auxiliary valve first groove 1311; the auxiliary stationary valve plate 132 is provided with a softening connection hole 1322, a brine hole 1323 and a brine suction and water injection hole 1324.

[0392] In some cases, the auxiliary static valve plate 132 is provided with an auxiliary valve drain hole 1321.

[0393] In some cases, the auxiliary valve plate 131 is provided with one or more of the following: auxiliary valve second groove 1312, auxiliary valve third groove 1313, auxiliary valve fourth groove 1315, and auxiliary valve fifth groove 1316. It is understood that the auxiliary valve process groove can be any one or more of the following: auxiliary valve second groove 1312, auxiliary valve third groove 1313, auxiliary valve fourth groove 1315, and auxiliary valve fifth groove 1316. The auxiliary valve process groove can also be other groove structures besides the following: auxiliary valve second groove 1312, auxiliary valve third groove 1313, auxiliary valve fourth groove 1315, and auxiliary valve fifth groove 1316.

[0394] For example, the first groove 1311, the second groove 1312, the third groove 1313, the inlet 1314, the fourth groove 1315, and the fifth groove 1316 of the auxiliary valve are arranged sequentially along the circumference of the auxiliary valve plate 131 to facilitate the control of the rotation of the auxiliary valve plate 131; the drain hole 1321, the softening connection hole 1322, and the brine injection hole 1324 of the auxiliary valve are arranged sequentially along the circumference of the auxiliary stationary valve plate 132 to facilitate the control of the hole of the auxiliary stationary valve plate 132 and the auxiliary valve plate 131.

[0395] 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, which ensures that the groove structure can surround the hole structure, making the hole structure more sealed and preventing water leakage.

[0396] In some cases, the first recess 1311 of the auxiliary valve extends along the radial direction of the auxiliary valve spool 131, and the first recess 1311 of the auxiliary valve is switched between the state of connecting or disconnecting the brine hole 1323 and the softened water connection hole 1322 by rotating the auxiliary valve spool 131. During the movement of the first recess 1311 of the auxiliary valve, the first recess 1311 of the auxiliary valve can be always connected with the brine hole 1323, or can be connected and disconnected. When the first recess 1311 of the auxiliary valve can be always connected with the brine hole 1323, the brine hole 1323 can be in the center of the auxiliary valve spool 131.

[0397] In the water production mode, the auxiliary valve inlet 1314 and the softened water connection hole 1322 are connected to form an auxiliary water production flow channel 136, which connects the softened water inlet 119 and the auxiliary cavity 112, so that the water at the softened water inlet 119 can flow into the auxiliary cavity 112. At this time, the auxiliary valve spool 131 is in the fourth recess 1315 of the auxiliary valve, that is, the auxiliary valve inlet 1314 is disconnected with the auxiliary valve drain hole 1321, the brine hole 1323 is in the first recess 1311 of the auxiliary valve, that is, the auxiliary valve inlet 1314 and other recess structures of the auxiliary valve spool 131 are disconnected with the brine hole 1323, and the salt suction and water injection hole 1324 is in the third recess 1313 of the auxiliary valve, that is, the auxiliary valve inlet 1314 and other recess structures of the auxiliary valve spool 131 are disconnected with the salt suction and water injection hole 1324. By closing the auxiliary valve drain hole 1321 through the fourth recess 1315 of the auxiliary valve, closing the brine hole 1323 through the first recess 1311 of the auxiliary valve, and closing the salt suction and water injection hole 1324 through the third recess 1313 of the auxiliary valve, the sealing effect of the auxiliary valve drain hole 1321, the brine hole 1323 and the salt suction and water injection hole 1324 can be improved.

[0398] For example, the opening area of the fourth recess 1315 of the auxiliary valve is greater than or equal to the opening area of the auxiliary valve drain hole 1321. It is ensured that the fourth recess 1315 of the auxiliary valve can surround the auxiliary valve drain hole 1321, so that the sealing of the auxiliary valve drain hole 1321 is better, and the water leakage can be avoided.

[0399] For example, the opening area of the first recess 1311 of the auxiliary valve is greater than or equal to the opening area of the brine hole 1323, and the opening area of the third recess 1313 of the auxiliary valve is greater than or equal to the opening area of the salt suction and water injection hole 1324.

[0400] In the water injection mode, the softened water connection hole 1322 and the salt water injection hole 1324 are communicated to form a water injection flow channel 137, so that the softened water at the softened water inlet 119 can be injected into the salt tank 200 through the water injection flow channel 137. At this time, the secondary valve drain hole 1321 is in the orthographic projection of the secondary valve core 131 in the secondary valve fifth groove 1316, that is, the secondary valve water inlet 1314 and other groove structures of the secondary valve core 131 are all disconnected with the secondary valve drain hole 1321, and the salt water hole 1323 is in the orthographic projection of the secondary valve core 131 in the secondary valve first groove 1311, that is, the secondary valve water inlet 1314 and other groove structures of the secondary valve core 131 are all disconnected with the salt water hole 1323.

[0401] For example, the opening area of the secondary valve fifth groove 1316 is greater than the opening area of the secondary valve drain hole 1321.

[0402] In the salt suction mode, the secondary valve water inlet 1314 and the salt water injection hole 1324 are communicated to form a first salt suction flow channel 1341, and the salt water hole 1323 is communicated through the secondary valve first groove 1311 and the softened water connection hole 1322 to form a second salt suction flow channel 1342. At this time, the secondary valve drain hole 1321 is in the orthographic projection of the secondary valve core 131 in the secondary valve second groove 1312, that is, the secondary valve water inlet 1314 and other groove structures of the secondary valve core 131 are all disconnected with the secondary valve drain hole 1321.

[0403] For example, the opening area of the secondary valve second groove 1312 is greater than or equal to the opening area of the secondary valve drain hole 1321.

[0404] In the backwashing mode, the state of the secondary valve core 134 is the same as that in the water production mode, which will not be repeated.

[0405] In the forward washing mode, the salt water injection hole 1324 is in the orthographic projection of the secondary valve core 131 in the secondary valve second groove 1312, that is, the secondary valve drain hole 1321 and other groove structures of the secondary valve core 131 are all disconnected with the salt water injection hole 1324, and the salt water hole 1323 is in the orthographic projection of the secondary valve core 131 in the secondary valve first groove 1311, that is, the secondary valve water inlet 1314 and other groove structures of the secondary valve core 131 are all disconnected with the salt water hole 1323.

[0406] For example, the opening area of the secondary valve second groove 1312 is greater than or equal to the opening area of the salt water injection hole 1324.

[0407] The above describes the structure of the soft water valve, which can be applied to a soft water machine and cooperates with components such as the softening device 190 and the salt tank 200 in the soft water machine to realize softening of raw water and facilitate users to obtain softened water. Figure 42 and Figures 45 to 60 A specific embodiment of the present application is described with reference to the drawings.

[0408] The soft water valve comprises:

[0409] a valve housing 110 comprising a raw water inlet 113, a soft water outlet 114, a main cavity 111, a secondary cavity 112, a raw water outlet 118 and a soft water inlet 119, the raw water outlet 118 and the soft water inlet 119 being in communication through a softening device 190, the secondary cavity 112 being in communication with the soft water outlet 114, and the main cavity 111 being in communication with the raw water outlet 118;

[0410] a main valve assembly 120 comprising 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 being located in the main cavity 111, wherein the main cavity 111 and the raw water inlet 113, and the secondary cavity 112 and the raw water inlet 113 are both adjusted by the main valve core 124 to be in communication or not;

[0411] a secondary valve assembly 130 comprising a secondary valve core 134 and a secondary driving part 135 for driving the secondary valve core 134 to move, the secondary valve core 134 being located in the secondary cavity 112, the soft water inlet 119 and a flow passage of the secondary valve core 134 being adjusted by the secondary valve core 134 to be in communication or not, and the secondary cavity 112 and the flow passage of the secondary valve core 134 being adjusted by the secondary valve core 134 to be in communication or not;

[0412] the main driving part 125 drives the main valve core 124 to rotate, and the secondary driving part 135 drives the secondary valve core 134 to rotate, so as to switch the soft water valve between the water making mode, the water filling mode, the salt sucking mode and the cleaning mode.

[0413] It can be understood that the main driving part 125 drives the main valve core 124 to rotate, so that the main valve core 124 is switched between the first main valve position and the third main valve position, and the secondary driving part 135 drives the secondary valve core 134 to rotate, so that the secondary valve core 134 is switched between the plurality of secondary valve positions, so as to switch the soft water valve between the water making mode, the water filling mode, the salt sucking mode and the cleaning mode.

[0414] When the soft water valve needs to be in the water production mode, the main valve core 124 is driven to be in the first main valve position, at this time the main cavity 111 and the raw water inlet 113 are communicated through the main valve core 124, and the auxiliary cavity 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 cavity 111 through the main valve core 124, and since the main cavity 111 and the raw water outlet 118 are communicated, the raw water in the main cavity 111 can flow to the softening device 190 through the raw water outlet 118, and after being treated by the softening device 190, the raw water becomes soft water, 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 under the drive of the auxiliary driving part 135, and the soft water inlet 119 is communicated with the auxiliary cavity 112 through the auxiliary valve core 134, so that the soft water can flow into the auxiliary cavity 112 from the soft water inlet 119 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 the soft water at the soft water outlet 114, so that the soft water valve realizes the water production function.

[0415] When the soft water valve needs to be in the water production mode, the main valve core 124 is driven to be in the first main valve position, at this time the raw water flow path is the same as that in the water production mode, and the raw water flows to 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 the soft water inlet 119 and the auxiliary cavity 112, and the soft water inlet 119 and / or the auxiliary cavity 112 are also communicated with the water injection flow channel 137 in the auxiliary valve core 134, so that the soft water can flow into the auxiliary cavity 112, and the soft water can also flow into the salt tank 200 connected with the soft water valve through the water injection flow channel 137, realizing the water injection function of the soft water valve.

[0416] When the soft water valve is required to be in the salt draw mode, the main valve core 124 is driven to the third main valve position, at this time, the auxiliary chamber 112 and the raw water inlet 113 are communicated through the main valve core 124, 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 auxiliary chamber 112 through the main valve core 124. At this time, the auxiliary valve core 134 is driven to the third auxiliary valve position, so that the auxiliary chamber 112 cannot be directly communicated with the soft water inlet 119, but needs to be communicated with 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, the raw water can be mixed with the brine, and then the mixed liquid is delivered to the soft water inlet 119 and enters the softening device 190 from the soft water inlet 119, so that the brine 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 draw mode.

[0417] When the cleaning mode includes the backwash mode, 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 the raw water flowing into the auxiliary chamber 112 is the same as that in the salt draw mode, the raw water flows into the auxiliary 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 auxiliary chamber 112 and the soft water inlet 119 are communicated, and part of the raw water in the auxiliary chamber 112 flows to the soft water inlet 119 through the auxiliary valve core 134, and then flows to the softening device 190 through the soft water inlet 119 to clean the softening device 190. The sewage after cleaning 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 auxiliary chamber 112 can flow to the soft water outlet 114, so that the user still has raw water to use in the salt draw mode.

[0418] When the cleaning mode includes a forward wash mode, requiring the softener valve to be in forward wash mode, the main valve core 124 is driven to the first main valve position. At this time, the raw water flow path is the same as in the water production mode. The raw water flows along the path of raw water inlet 113, main valve core 124, main chamber 111, and raw water outlet 118 into the softening device 190 to clean it. Simultaneously, the auxiliary valve core 134 is driven to the fourth auxiliary valve position. The softener inlet 119 is connected to the auxiliary chamber 112 through the auxiliary valve core 134. The water cleaned from the softener 190 flows out of the softener 190 from the softener inlet 119, and then flows from the softener inlet into the auxiliary chamber 112. Before controlling the softener valve to be in forward wash mode, it can be controlled to be in backwash mode, i.e., a backwash operation is performed on the softener valve to reduce the salt content of the water inside. After the backwash mode, during 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. Therefore, the water in the secondary chamber 112 can be divided into two parts. One part is discharged from the valve shell 110 through the secondary 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.

[0419] The water softener valve of the present invention, through the cooperation of the valve housing 110, the main chamber 111, the secondary chamber 112, the main valve assembly 120 and the secondary valve assembly 130, enables the water softener valve to switch between water production mode, water injection mode, brine suction mode and cleaning mode. The user can use water in water production mode, water injection mode, brine suction mode and cleaning mode at the water softener valve, thus meeting the user's 24-hour water demand.

[0420] Unlike the embodiments described above, reference is made to... Figure 47 As shown, another type of soft water valve is provided, which differs from the above embodiment in that "the raw water inlet is always connected to the main chamber, the raw water outlet is connected to the main chamber through the on / off adjustment of the main valve core, the soft water inlet is always connected to the soft water outlet, and the soft water outlet is connected to the secondary chamber through the on / off adjustment of the secondary valve core". Correspondingly, the valve body, main valve core and secondary valve core have different structures, but their functions are basically the same. They can all realize the switching and operation of water production mode, water injection mode, brine suction mode, backwash mode and forward wash mode.

[0421] The structure of the valve body, main valve core, and auxiliary valve core will be described below.

[0422] The valve body is provided with a main cavity 111 and a secondary cavity 112. The positions of the holes corresponding to the main cavity 111 are different from those in the above embodiment, and the positions of the holes corresponding to the secondary cavity 112 are also different from those in the above embodiment.

[0423] refer to Figure 48 and Figure 62As shown, the main valve core includes a main active valve plate 321 and a main static valve plate 322, and the auxiliary valve core includes an auxiliary active valve plate 331 and an auxiliary static valve plate 332. The main active valve plate 321 is connected to the main driving part, the main static valve plate 322 is fixed to the valve housing 110, the auxiliary active valve plate 331 is connected to the auxiliary driving part, and the auxiliary static valve plate 332 is fixed to the valve housing 110.

[0424] In each functional mode, the main valve core includes a first main valve position and a third main valve position, and the main valve core can also include the second main valve position as in the above embodiment; 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, and the positions of the auxiliary valve core are different from those in the above embodiment in the water production mode and the backwashing mode. Referring to Figure 49 As shown, the five auxiliary valve positions corresponding to the auxiliary valve core on the left 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 respectively; the three main valve positions corresponding to the main valve core on the right are marked by the cover plate, and the first main valve position, the second main valve position, and the third main valve position correspond to the numbers 1, 2, and 3 in the figure respectively.

[0425] Referring to Figure 50 , Figure 53 and Figure 50 As shown, the main valve core is in the first main valve position, the main water production flow channel 126 of the main valve core is in communication with the main cavity 111 and the raw water outlet 118, at the same time, the main cavity 111 is in communication with the raw water inlet 113, that is, the raw water in the raw water inlet 113 can be delivered to the raw water outlet 118 through the main valve core to realize the process of delivering the raw water to the softening device 190, and at this time, the switching of the position of the auxiliary valve core realizes the switching of the water softener valve between the water production mode and the water injection mode. In the water production mode, the water injection mode, and the forward 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 main 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 in communication with the raw water inlet 113, and the main valve water inlet hole 3221 is in communication with the main valve water inlet 3211 to form the main water production flow channel 126.

[0426] Referring to Figure 49As shown, the active valve plate 321 includes a valve plate body and a shielding portion 3214. In the water production mode, the shielding portion 3214 is located between the main shaft assembly 1251 and the main valve water inlet hole 3221, and the shielding portion 3214 and the main static valve plate 322 form a main valve water inlet 3211. The shielding portion 3214 is smaller than the flow area of the main valve water inlet hole 3221 in the orthogonal projection area of the main static valve plate 322, and does not affect the water flow effect of the main valve water inlet hole 3221. The orthogonal projection of the valve plate body and the shielding portion 3214 on the end face of the main shaft assembly 1251 covers the area of the end face of the main shaft assembly 1251. The shielding portion 3214 can reduce the impact of water on the main shaft assembly 1251.

[0427] In other cases, as shown in Figure 50 , Figure 56 and Figure 53 , the main valve core is in the third main valve position, the first sewage flow channel 127 of the main valve core is connected, the main water production flow channel 126 is disconnected, the first sewage flow channel 127 connects the raw water outlet 118 and the sewage passage 1114 of the valve shell 110, so that the sewage is discharged along the raw water outlet 118, the first sewage flow channel 127 and the sewage passage 1114, forming a "first sewage flow channel 127", and the main valve core is used to guide the sewage in the softening device 190 out. In the mode of discharging sewage, the main valve core can be switched to the third main valve position, and 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 position switching of the auxiliary valve core realizes the switching of the water softener valve between the salt absorption mode and the backwashing mode. Among them, the structure of the "first sewage flow channel 127" is, for example, the main static valve plate 322 is provided with a main valve water inlet hole 3221 and a main valve sewage hole 3222, the main 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 hole 3222 to form the first sewage flow channel 127, the main valve water inlet hole 3221 connects the raw water outlet 118, the main valve water inlet 3211 connects the main cavity 111, and the main static valve plate 322 separates the main valve water inlet 3211 and the raw water outlet 118.

[0428] The above describes the two positions of the main valve core. Next, the modes will be described in combination with the positions of the main valve core and the auxiliary valve core.

[0429] When the water softener 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, and the first auxiliary valve position, the second auxiliary valve position and the fourth auxiliary valve position are sequentially arranged along the circumference of the auxiliary valve core, facilitating the position adjustment of the auxiliary valve core.

[0430] Referring to Figure 54 and Figure 53As shown, in the water production mode, the sub-valve core is at the first sub-valve position, the main valve core is used to pass water to the softening device 190, and the sub-valve core is used to disconnect the soft water inlet 119 from other flow channels. The holes of the sub-moving valve piece are all closed by the grooves of the sub-static valve piece.

[0431] Referring to Figure 55 and Figure 56 As shown, in the water production mode, the sub-valve core is at the first sub-valve position, the main valve core is used to pass water to the softening device 190, and the sub-valve core is used to disconnect the soft water inlet 119 from other flow channels. The holes of the sub-moving valve piece are all closed by the grooves of the sub-static valve piece.

[0432] Referring to Figure 57 and Figure 56 As shown, in the water production mode, the sub-valve core is at the first sub-valve position, the main valve core is used to pass water to the softening device 190, and the sub-valve core is used to disconnect the soft water inlet 119 from other flow channels. The holes of the sub-moving valve piece are all closed by the grooves of the sub-static valve piece.

[0433] The auxiliary static valve plate 332 is constructed with a softening connection hole 3322, a brine outlet 3323, and a brine suction and water injection hole 3324. The auxiliary dynamic valve plate 331 is constructed with a third auxiliary valve groove 3313 and a secondary valve inlet 3314. The secondary valve inlet 3314 is connected to the brine suction and water injection hole 3324 to form a first brine suction channel 1341. The secondary valve inlet 3314 is connected to the raw water inlet 113 through the secondary cavity 112. The brine suction and water injection hole 3324 is connected to the jet inlet 161. The brine outlet 3323 and the softening connection hole 3322 are connected through the third auxiliary valve groove 3313 to form a second brine suction 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.

[0434] refer to Figure 58 and Figure 53 As shown, when the cleaning mode includes a backwash mode, the auxiliary valve core also includes a 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 introduce raw water into the softening device 190, and the water in the softening device 190 is discharged through the main valve core along the valve housing 110. In the fifth auxiliary valve position, the backwash flow channel of the auxiliary valve core is connected, and the backwash flow channel connects the softened water inlet 119 and the auxiliary chamber 112. The auxiliary stationary valve plate 332 is provided with a softening connection hole 3322, and the auxiliary moving valve plate 331 is provided with a auxiliary valve inlet 3314. The auxiliary valve inlet 3314 is connected to the raw water inlet 113, and the auxiliary valve inlet 3314 and the softening connection hole 3322 are connected to form a backwash flow channel.

[0435] refer to Figure 59 and Figure 62 As shown, when the cleaning mode includes the forward washing mode, the auxiliary valve core is in the third auxiliary valve position, and the main valve core is in the first main valve position. The main valve core is used to pass raw water into the softening device 190, and the water in the softening device 190 is discharged through the auxiliary valve core along the valve housing 110. In the third auxiliary valve position, the second drain channel of the auxiliary valve core is connected, and the second drain channel connects the softened water inlet 119 and the drain channel 1114 of the valve housing 110. The first groove 3311 of the auxiliary valve is connected to the softening connection hole 3322 and the auxiliary valve drain hole 3321 to form the second drain channel.

[0436] The description of the status and functional modes of the soft water valve, as well as the structure of each flow channel, are not detailed here. Please refer to the description of each mode above.

[0437] refer to Figure 60 As shown, when 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, 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 sequentially along the circumference of the auxiliary valve core. The auxiliary drive unit drives the auxiliary valve plate 131 to rotate, which can move the auxiliary valve core to the corresponding auxiliary valve position.

[0438] In some cases, refer to Figure 46 As shown, the main valve core also includes a second main valve position. The main valve core is adapted to switch 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 from the raw water outlet 118. At this time, the water in the raw water inlet 113 will not enter the softening valve, and the water supply to the main chamber 111, the secondary chamber 112, and the softening device 190 will stop. The pressure of the water flow on the secondary valve core in the secondary chamber 112 will decrease, which can reduce the resistance of the water pressure to the position switching of the secondary valve core, making the position switching of the secondary valve core easier. This can reduce the driving force provided by the secondary drive unit to the secondary valve plate 331, reduce power consumption, reduce the wear of the secondary valve assembly 130, and help extend the life of the secondary valve assembly 130 and the life of the softening valve.

[0439] When the active valve plate 321 is provided with the main valve second groove 3213, in the second main valve position, the main valve inlet hole 3221 is at least partially located in the main valve second groove 3213 in the orthogonal projection of the active valve plate 321.

[0440] The main valve core is in the second main valve position, which can control the auxiliary drive unit to drive the auxiliary valve core to switch between multiple auxiliary valve positions.

[0441] When the main valve core is in either the first or second main valve position, during the process of switching the main valve core from the first to the second main valve position, the main valve drain hole 3222 is connected to the main valve inlet hole 3221. Based on the main valve drain hole 3222 being connected to the drain port of the valve body, and the raw water outlet being connected to the main valve inlet hole 3221, the pressure inside the softening device can be discharged through the path of the raw water outlet, the main valve inlet hole 3221, the main valve drain hole 3222, and the drain port. The pressure between the softening device and the softened water valve will be relieved. The pressure inside the softening device will not increase after being released. After the main valve core releases pressure to the softening device, the pressure between the auxiliary stationary valve plate 332 and the softening device can be reduced. If the pressure is not released, the pressure inside the softening device will be transmitted to the auxiliary chamber and between the auxiliary stationary valve plate 332 and the auxiliary moving valve plate 331 through the softening connection hole 3322 of the auxiliary stationary 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.

[0442] The auxiliary valve plate 331 is also provided with a secondary valve second groove 3312. The secondary valve second groove 3312 is a process groove. Under the premise of satisfying the structural strength of the auxiliary valve plate 331, the secondary valve second groove 3312 can be opened to avoid the positions of the secondary valve first groove 3311, the secondary valve third groove 3313 and the secondary valve inlet 3314, which can reduce the contact area between the auxiliary valve plate 331 and the secondary stationary valve plate 332.

[0443] The valve housing structure is provided to match the structures of the main valve core and the auxiliary valve core described above.

[0444] Reference is made to Figure 36 As shown in FIG. 1, the valve housing 110 is provided with a main cavity inlet 316, and the raw water channel is always connected with the main cavity 111 through the main cavity inlet 316. The raw water in the raw water channel enters the main cavity 111 through the main cavity inlet 316. The valve housing is provided with a communication channel 3111, and the communication channel 3111 connects the main cavity 111 and the auxiliary cavity 112. The main cavity 111 and the auxiliary cavity 112 are always connected. The valve housing 110 is provided with a water inlet hole 3126 for connecting the main cavity 111 and the raw water outlet 118, and the water inlet hole 3126 is connected with the main valve water inlet hole 3221.

[0445] The valve housing 110 is provided with a softening connection port 3121 and a salt suction and water injection port 3119. The softening connection port 3121 is connected with the softening connection hole 3322, and the salt suction and water injection port 3119 is connected with the salt suction and water injection hole 3324. The valve housing 110 is also provided with a brine port 3120, which is connected with the brine outlet 3323 of the auxiliary valve disc 332 and is connected with the jet outlet 162 of the jet channel.

[0446] The valve housing 110 (such as the third housing part 1142) is provided with at least one of a first sewage discharge opening 3125 and a second sewage discharge opening 3124. The first sewage discharge opening 3125 is connected with the main valve sewage hole 3222 and can discharge sewage through the first sewage discharge opening 3125. The second sewage discharge opening 3124 is connected with the auxiliary valve sewage hole 3321 and can discharge sewage through the second sewage discharge opening 1124. The valve housing 110 is also provided with a sewage channel. One end of the sewage channel forms a sewage process port 3117, and the end of the installation channel 1136 is closed by the same end cover. The other end of the sewage channel forms a sewage port, which is convenient for molding.

[0447] The above describes the switching and adjustment of each mode, path and valve core of the soft water valve. The following describes other components of the soft water valve. The following content can be applied to the soft water valve of any one of the above embodiments.

[0448] In the above soft water valve, as shown in FIG. 1, Figure 36 The main valve assembly further includes a main encoder connected with the main driving part, and / or the auxiliary valve assembly further includes an auxiliary encoder connected with the auxiliary driving part. The angle of rotation of the main driving part relative to the main initial position is detected by the main encoder, and / or the angle of rotation of the auxiliary driving part relative to the auxiliary initial position is detected by the auxiliary encoder.

[0449] The main encoder measures the number of main pulses for the rotation of the main drive unit. Based on the target main angular position of the main drive unit, it controls the rotation of the main drive unit by setting the number of main pulses to ensure that the main drive unit accurately reaches the target main angular position. The auxiliary encoder measures the number of auxiliary pulses for the rotation of the auxiliary drive unit. Based on the target secondary angular position of the auxiliary drive unit, it controls the rotation of the auxiliary drive unit by setting the number of auxiliary pulses to ensure that the auxiliary drive unit accurately reaches the target secondary angular position.

[0450] 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 auxiliary encoder can be set as an AB phase encoder. The AB phase encoder outputs two sets of pulse sequences with a 90° phase difference. The lead and lag relationship of the two pulses is exactly opposite during forward and reverse rotation. At the rising edge of the B phase pulse, the level of the A phase pulse is exactly opposite during forward and reverse rotation. Therefore, using an AB phase encoder, the direction of shaft rotation can be identified. The motor (main drive unit or auxiliary drive unit) generates N pulses per revolution. The rotation of the motor drives the gearbox gears to rotate, which in turn drives the output shaft to rotate, thereby changing the state of the water circuit. The number of pulses for the output shaft to rotate 360° = N pulses per revolution x gearbox reduction ratio K.

[0451] In some cases, refer to Figure 63 As shown, the soft water valve also includes a main trigger 129, which is used to detect whether the main drive unit has moved to the main initial position. The main trigger 129 is connected to the rotating shaft of the main drive unit. The main trigger 129 rotates synchronously with the main drive unit. Alternatively, the main trigger 129 is fixed relative to the valve body (the main trigger is fixed to the cover plate), and the main drive unit rotates relative to the main trigger 129.

[0452] The main trigger 129 can be a micro switch, position sensor, etc.

[0453] In some cases, the soft water valve also includes a secondary trigger 139, which is used to detect whether the secondary drive unit has moved to the secondary initial position. The secondary trigger 139 is connected to the rotating shaft of the secondary drive unit and rotates synchronously with the secondary drive unit. Alternatively, the secondary trigger 139 is fixed relative to the valve body (the secondary trigger is fixed to the cover plate), and the secondary drive unit rotates relative to the secondary trigger 139.

[0454] The secondary trigger 139 can be a micro switch, position sensor, etc.

[0455] When the trigger (main trigger or auxiliary trigger) is a micro switch, the output shaft of the control valve head reversely rotates at initial power-on until the output shaft hits the micro switch and presses the micro switch, and a trigger signal is received, then the output shaft of the control valve head stops moving, and the current position is determined as the initial position (main initial position or auxiliary initial position). The pulse number of the initial position can be recorded as 0, that is, the initial value is 0. The foregoing steps are repeated to sequentially complete the motor reset of the main cavity and the auxiliary cavity, thereby completing the confirmation of the initial position.

[0456] According to the angle of the waterway target position to be controlled, it is assumed that the angle of the main valve core relative to the main initial position is angle D1, and the angle of the auxiliary valve core relative to the auxiliary initial position is angle D2,

[0457] The number of main valve core rotation pulses M1 is D1 / 360*N*K, wherein N pulses are obtained when the motor rotates one circle, and the reduction ratio K of the reduction box.

[0458] The output shaft is controlled to rotate in a set direction (forward rotation or reverse rotation), while the number of AB phase pulse outputs is collected in real time, and a 125 microsecond periodic interruption is used, the number N1 of accumulated pulses is detected every 125 microseconds, and the previous accumulated number N0' = N0+N1 is added to obtain the latest N0' number, which is compared with the M1 number. If N0' is equal to M1, the motor is immediately stopped, so that the output shaft is timely stopped at the target D1 angle position. Wherein, rotating from the current position to the direction away from the initial position can be understood as forward rotation, and rotating from the current position to the direction close to the initial position can be understood as reverse rotation.

[0459] Similarly, the foregoing control process is repeated to control the output shaft of the auxiliary driving part to be timely stopped at the target D2 angle position, and the relative position of the two output shafts is switched to achieve the purpose of accurately opening and closing the waterway to be used.

[0460] The following content provides another embodiment of the present application. The control method of the water softening valve can be applied to the water softening valve of any one of the above, and of course, the control method of the water softening valve described below can also be applied to other forms of water softening valves.

[0461] Reference Figure 27 As shown, the control method of the water softening valve comprises:

[0462] In step 110, the target main pulse number required for driving the main valve core to rotate to the target main valve position by the main driving part is obtained, the main driving part is controlled to rotate, and the current main pulse number rotated by the main driving part is recorded by the main encoder of the main driving part. When the current main pulse number is equal to the target main pulse number, the main driving part is stopped, and the main preset flow path of the water softening valve is connected.

[0463] The target main pulse number can be understood as the main pulse number corresponding to the angle of rotation of the main driving part required for the main valve core to rotate from the current main valve position to the target main valve position.

[0464] The main encoder is used to record the main pulse number of the shaft body of the main driving part.

[0465] The determination that the current main pulse number is equal to the target main pulse number corresponds to the rotation of the main valve core to the target main valve position.

[0466] The main preset flow path communication of the water softener valve can be understood as the flow path communication between at least two components among the raw water inlet, the main valve core, the main cavity, the raw water outlet, the auxiliary cavity, and the blowdown port in the above embodiments.

[0467] In step 120, the target auxiliary pulse number required for the auxiliary driving part to drive the auxiliary valve core to rotate to the target auxiliary valve position is obtained, the rotation of the auxiliary driving part is controlled, and the current auxiliary pulse number of the auxiliary driving part is recorded by the auxiliary encoder of the auxiliary driving part. The determination that the current auxiliary pulse number is equal to the target auxiliary pulse number corresponds to the rotation of the auxiliary valve core to the target auxiliary valve position.

[0468] The target auxiliary pulse number can be understood as the auxiliary pulse number corresponding to the angle of rotation of the main driving part required for the auxiliary valve core to rotate from the current auxiliary valve position to the target auxiliary valve position.

[0469] The auxiliary encoder is used to record the auxiliary pulse number of the shaft body of the auxiliary driving part.

[0470] The determination that the current auxiliary pulse number is equal to the target auxiliary pulse number corresponds to the rotation of the auxiliary valve core to the target auxiliary valve position.

[0471] The auxiliary preset flow path communication of the water softener valve can be understood as the flow path communication between at least two components among the soft water inlet, the soft water outlet, the auxiliary cavity, the salt tank connection port, and the blowdown port in the above embodiments.

[0472] The main preset flow path communication and the auxiliary preset flow path communication of the water softener valve correspond to the water softener valve being in one mode among the water production mode, the water injection mode, the salt suction mode, and the cleaning mode.

[0473] The structure and model of the main encoder and the auxiliary encoder can be selected as needed.

[0474] It should be noted that the order of steps 110 and 120 is not limited, and both steps 110 and 120 are completed, and the water softener valve runs in one of the water production mode, the water injection mode, the salt suction mode, and the cleaning mode.

[0475] The control method of the soft water valve can accurately control the angle position of the main driving part through the main encoder and accurately control the angle position of the auxiliary driving part through the auxiliary encoder, so that the mode adjustment of the soft water valve is more accurate.

[0476] The target main pulse number corresponds to the first main pulse number and the third main pulse number based on the target main valve position including the first main valve position and the third main valve position.

[0477] In step 110, it is determined that the current main pulse number is equal to the first main pulse number, and the main preset flow path is formed between the raw water inlet, the main cavity, the main valve core and the raw water outlet,

[0478] At the first main valve position, the soft water valve can be in the water production mode, the water injection mode or the forward washing mode, at this time, it can be understood that the main preset flow path is connected, and the raw water of the raw water inlet can be guided to the raw water outlet to supply water to the softening device; in some cases, referring to Figure 26 It is shown that the backwashing mode is also at the first main valve position, at this time, the water flow direction is opposite to the above-mentioned modes (water production mode, water injection mode and forward washing mode), but the connected flow path is the same.

[0479] Or,

[0480] In step 110, it is determined that the current main pulse number is equal to the third main pulse number, and the main preset flow path is formed between the raw water inlet and the auxiliary cavity, wherein the main valve core connects the raw water inlet and the auxiliary cavity, or the raw water inlet is connected to the auxiliary cavity through the main cavity.

[0481] At the third main valve position, the soft water valve can be in the salt suction mode or the backwashing mode, the raw water inlet can send water to the auxiliary cavity, and then the water can be sent to the salt tank connection port (or the soft water inlet) through the auxiliary cavity, such as sucking salt from the salt solution in the salt tank or sending the raw water to the softening device through the auxiliary cavity for backwashing. In some cases, at the third main valve position, the soft water valve can be in the water injection mode, the raw water inlet can send water to the auxiliary cavity, and then the water can be sent to the salt tank through the auxiliary cavity and the salt tank connection port. In some cases, referring to Figures 1 to 42 It is shown that at the third main valve position, the soft water valve can be in the backwashing mode, the raw water inlet can send water to the auxiliary cavity, and the auxiliary cavity can send water to the softening inlet to achieve backwashing.

[0482] It can be understood that before step 120, before the step of controlling the rotation of the auxiliary driving part, the method further comprises:

[0483] In step 130, the main driving part is controlled to rotate, and the current main pulse number of the main driving part is recorded through the main encoder of the main driving part, it is determined that the current main pulse number is equal to the second main pulse number, and then the main driving part is stopped, 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.

[0484] Step 120, further 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, then control the auxiliary driving part to stop.

[0485] Step 110, further control the main driving part 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, then control the main driving part to stop.

[0486] According to the sequence of step 130, step 120 and step 110, the main valve core is switched to the second main valve position first to reduce the rotation resistance of the water flow to the auxiliary valve core, then the auxiliary valve core is switched to the corresponding target auxiliary valve position, and finally the main valve core is switched 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.

[0487] The current main pulse number is equal to the first main pulse number, the second main pulse number or the third main pulse number, which corresponds to the main driving part rotating to the first main angle, the second main angle or the third main angle relative to the main initial position. The first main angle, the second main angle and the third main angle are sequentially arranged along the circumference of the main driving part. That is, the main driving part rotates sequentially through the first main angle, the second main angle and the third main angle.

[0488] 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.

[0489] 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 inlet of the main valve core and increase the water passage 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.

[0490] In combination with Figures 1 to 62 The soft water valve shown in the figure, the raw water outlet is always connected with the main cavity, the soft water outlet is always connected with the auxiliary cavity, 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.

[0491] Next, the control process of each functional mode of the soft water valve is listed and described.

[0492] Referring to Figure 61 The control method of the soft water valve further includes:

[0493] When it is determined that the current main pulse number is equal to the first main pulse number, the main valve core connects the main cavity with the raw water inlet to form a main preset flow path,

[0494] When it is determined that the current auxiliary pulse number is equal to the first auxiliary pulse number, the auxiliary valve core connects the soft water inlet with the auxiliary cavity to form an auxiliary preset flow path, and the soft water valve is in a water making mode.

[0495] or,

[0496] Once the current main pulse count is determined to be equal to the third main pulse count, the main valve core connects the auxiliary chamber to the raw water inlet, and the main chamber connects the raw water outlet to the drain port of the valve body, forming the main preset flow path.

[0497] Once the current number of secondary pulses is determined to be equal to the number of the first secondary pulses, the secondary valve core connects the soft water inlet and the secondary chamber to form a secondary preset flow path, and the soft water valve is in backwash mode.

[0498] The backwash mode and the water production mode can share the same position of the first auxiliary valve, and both are rotated to the pulse count of the first auxiliary valve.

[0499] or,

[0500] When the current main pulse count is equal to the first main pulse count, the main valve core connects the main chamber to the raw water inlet, forming the main preset flow path.

[0501] Once the current number of secondary pulses is determined to be equal to the number of secondary pulses, the secondary valve core connects the soft water inlet to the secondary chamber, and the secondary valve core connects the soft water inlet to the salt tank connection port of the valve body, forming a secondary preset flow path, and the soft water valve is in water injection mode;

[0502] or,

[0503] Once the current main pulse count is determined to be equal to the third main pulse count, the main valve core connects the auxiliary chamber to the raw water inlet, and the main chamber connects the raw water outlet to the drain port of the valve body, forming the main preset flow path.

[0504] Once the current number of secondary pulses is determined to be equal to the number of the third secondary pulses, the secondary valve core connects the secondary chamber to the salt tank connection port of the valve body, and the secondary valve core connects the salt tank connection port to the soft water inlet, forming a secondary preset flow path, and the soft water valve is in the brine suction mode;

[0505] or,

[0506] When the current main pulse count is equal to the first main pulse count, the main valve core connects the main chamber to the raw water inlet, forming the main preset flow path.

[0507] Once the current number of secondary pulses is determined to be equal to the number of the fourth secondary pulse, the secondary valve core connects the soft water inlet and the drain port of the valve body to form a secondary preset flow path, and the soft water valve is in the forward washing mode.

[0508] For details on the various modes mentioned above, please refer to the information on soft water valves.

[0509] The current number of secondary pulses is equal to the number of the first, second, third, or fourth secondary pulses, corresponding to the rotation of the secondary drive unit relative to the initial position to the first, second, third, or fourth secondary angle. The angular position of the secondary drive unit is accurately determined by the number of pulses.

[0510] refer to Figure 61As shown, the first sub-angle, the second sub-angle, the third sub-angle or the fourth sub-angle are sequentially arranged along the circumferential direction of the sub-driving part, and the first sub-angle, the second sub-angle, the third sub-angle or the fourth sub-angle correspond to the first sub-valve position, the second sub-valve position, the third sub-valve position and the fourth sub-valve position one by one, that is, the first sub-angle corresponds to the first sub-valve position, the second sub-angle corresponds to the second sub-valve position, the third sub-angle corresponds to the third sub-valve position, and the fourth sub-angle corresponds to the fourth sub-valve position. Figure 62 The numbers 1 to 4 on the left side correspond one by one.

[0511] The normal state of the soft water valve is the water making mode, and the sub-driving part corresponds to the first sub-angle (in some cases, the sub-initial position); when the softening device needs to be regenerated, the water making mode is switched to the water filling mode, and the sub-driving part corresponds to the second sub-angle; after the water filling mode, the soft water valve is adjusted to the water making mode (which can be understood as the salt melting mode) again to maintain the water making function, and the sub-driving part corresponds to the first sub-angle, so that the salt in the salt tank is fully dissolved; after the salt melting is completed; it is adjusted to the salt sucking mode, which corresponds to the third main valve position; after the salt sucking is completed, it is adjusted to the backwashing mode, and the sub-driving part corresponds to the first sub-angle; after the backwashing is completed, it is adjusted to the forward washing mode, and the sub-driving part corresponds to the fourth sub-angle. In combination with the foregoing, the position of the sub-driving part is switched from the first sub-angle to other angles, which ensures the position accuracy of the sub-valve core.

[0512] The difference between the fourth sub-angle and the third sub-angle is less than or equal to 180° and greater than or equal to 100°;

[0513] And / or, the difference between the third sub-angle and the second sub-angle is less than or equal to 90° and greater than or equal to 40°;

[0514] And / or, the difference between the second sub-angle and the first sub-angle is less than or equal to 90° and greater than or equal to 30°.

[0515] It should be noted that the first main pulse number, the second main pulse number, the third main pulse number, the first sub-pulse number, the second sub-pulse number, the third sub-pulse number and the fourth sub-pulse number represent the number of pulses required for the main driving part (or the sub-driving part) to rotate from the current position to the target position, and are not limited to fixed values. Based on the current positions of the main driving part and the sub-driving part, the corresponding main pulse number and sub-pulse number also change accordingly. Of course, if the main driving part (or the sub-driving part) returns to the initial position (the main initial position or the sub-initial position) and then rotates from the initial position to the corresponding target position, the aforementioned pulse number can be understood as a fixed value.

[0516] Similarly, referring to FIG. 1A, Figures 45 to 60 As shown, the sub-driving part can be rotated to five sub-angles, corresponding to the numbers 1 to 5 on the left side of the figure, and the cover plate corresponds to Figure 62 The soft water valve shown in FIG. 1A.

[0517] It can be understood that in step 110, the step of obtaining the target main pulse number required for the main driving part to drive the main valve core to rotate to the target main valve position comprises the steps of: 1) determining the current position of the main driving part;

[0518] In step 111, the main driving part is controlled to rotate to the main initial position, and then 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 is obtained.

[0519] If the main current position of the main driving part is the main initial position, the main driving part is rotated from the main initial position until the main valve core rotates to the target main valve position; if the main current position of the main driving part is not the main initial position, the main driving part is rotated from the main current position to the main initial position, and then rotated from the main initial position to the target position, so that the main valve core is located at the target main valve position.

[0520] and / or,

[0521] It can also be understood that in step 120, in the step of obtaining the target secondary pulse number required for the secondary driving part to drive the secondary valve core to rotate to the target secondary valve position, the step includes,

[0522] In step 121, the secondary driving part is controlled to rotate to the secondary initial position, and then the target secondary pulse number required for the secondary driving part to drive the secondary valve core to rotate from the secondary initial position to the target secondary valve position is obtained.

[0523] Similarly, if the secondary current position of the secondary driving part is the secondary initial position, the secondary driving part is directly rotated to the target secondary valve position of the secondary valve core; if the secondary current position of the secondary driving part is not the secondary initial position, the secondary driving part is controlled to rotate to the secondary initial position and then rotate to the target position, so that the secondary valve core is located at the target secondary valve position.

[0524] It can also be understood that in step 111, in the step of controlling the main driving part to rotate to the main initial position, the step includes,

[0525] If the main trigger signal of the main trigger part is obtained, it is determined that the main driving part rotates to the main initial position, wherein the main driving part rotates to the main initial position, and the main trigger part sends the main trigger signal;

[0526] and / or,

[0527] In step 121, in the step of controlling the secondary driving part to rotate to the secondary initial position, the step includes,

[0528] If the secondary trigger signal of the secondary trigger part is obtained, it is determined that the secondary driving part rotates to the secondary initial position, wherein the secondary driving part rotates to the secondary initial position, and the secondary trigger part sends the secondary trigger signal.

[0529] The main trigger part and the secondary trigger part can refer to the description of the soft water valve. The main trigger signal and the secondary trigger signal can be high level or low level, can be corresponding digital signals, etc.

[0530] Based on the obtained main trigger signal and the obtained auxiliary trigger signal, the position adjustment is performed, so that the main initial position and the auxiliary initial position can be accurately determined.

[0531] It can be understood that the control method of the water softener valve further comprises:

[0532] When the main driving part is located at the main initial position and the auxiliary driving part is located at the auxiliary initial position, it is determined that the water softener valve is in the water making mode.

[0533] The water making mode coincides with the two initial positions, so that the number of position switching of the main driving part and the auxiliary driving part can be reduced, and the structure of the water softener valve can be simplified.

[0534] It can be understood that the control method of the water softener valve further comprises:

[0535] In step 140, the initial start signal is received.

[0536] In step 150, the main actual pulse number of one rotation of the main driving part and the main design pulse number of one rotation of the main driving part are obtained, and the current main pulse number of the main driving part is corrected based on the deviation between the main actual pulse number and the main design pulse number.

[0537] The main actual pulse number of the main driving part is detected, and the current main pulse number is corrected in combination with the deviation between the main actual pulse number and the main design pulse number, so that the current main pulse number in the movement process of the main driving part is consistent with the current main actual pulse number through compensation of the current main pulse number.

[0538] For example, when the main design pulse number is 1000 and the main actual pulse number is 900, the pulse number required to rotate to the corresponding angle can be calculated based on the actual pulse number of one rotation of the main driving part; or, a deviation ratio is calculated based on the ratio of the main design pulse number to the main actual pulse number, and the product of the measured current actual main pulse number and the deviation ratio is recorded as the current main pulse number, so that compensation of the current main pulse number is realized, and the position regulation accuracy of the main valve plate is ensured.

[0539] and / or,

[0540] The control method of the water softener valve further comprises:

[0541] In step 140, the initial start signal is received.

[0542] In step 160, the auxiliary actual pulse number of one rotation of the auxiliary driving part and the auxiliary design pulse number of one rotation of the auxiliary driving part are obtained, and the current auxiliary pulse number of the auxiliary driving part is corrected based on the deviation between the auxiliary actual pulse number and the auxiliary design pulse number.

[0543] Similarly, the current auxiliary pulse number can be corrected by referring to the correction method of the current main pulse number described above, so that the position regulation accuracy of the auxiliary valve plate is ensured.

[0544] In combination with the above, in the control method of the soft water valve, the micro switch is fixed at the initial position, and when initially powered 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 hits the micro switch and presses the micro switch to be turned on, a trigger signal is sent, after the control system collects the trigger signal, the movement of the output shaft is stopped, then the number of pulses collected is cleared, and the current position is set as the initial position, the above steps are repeated to sequentially complete the motor movement of the main cavity and the auxiliary cavity, thereby completing the confirmation of the initial pulse calculation position.

[0545] After the initial position movement is completed, the water path of the soft water valve is in the water production mode, and the initial position is defined as No. 1 position of the main cavity and the auxiliary cavity, respectively.

[0546] The water injection position in the regeneration process mainly functions to introduce a certain amount of water (soft water or raw water) into the salt tank.

[0547] Reference Figure 40 As shown, on the basis of the initial position being positioned, the output shaft of the auxiliary valve assembly is controlled to move clockwise towards No. 2 position, the included angle A between No. 4 position and No. 1 position, it is assumed that the number of pulses obtained by the output shaft rotating 360° is M1, at this time, the output shaft is controlled to rotate while collecting the number of pulse outputs N1 of the motor, if N1=M1*(A / 360) more than the current position, the output shaft of the auxiliary valve assembly is stopped, and the water injection position is positioned, and the water can enter the salt tank.

[0548] The molten salt mode in the regeneration process is the same as the water production mode, on the basis of the water injection mode being positioned, the output shaft of the auxiliary valve assembly is controlled to rotate counterclockwise towards No. 1 position, based on the included angle A between No. 1 position and No. 4 position, it is assumed that the number of pulses obtained by the output shaft rotating 360° is M1, at this time, the output shaft is controlled to rotate while collecting the number of pulse outputs N1 of the motor, if N1=M1*(A / 360) less than the current position, the output shaft of the auxiliary valve assembly is stopped, and the molten salt is performed.

[0549] On the basis of the molten salt mode being positioned, when switching to the salt suction mode, first control the output shaft of the main valve assembly to rotate clockwise towards No. 3 position, the included angle B between No. 1 position and No. 3 position, control the output shaft to stop at a position which is more than the current position by a pulse number N1=M1*(B / 360), to realize the passage from the resin tank to the blowdown port; then control the output shaft of the auxiliary valve assembly to rotate clockwise towards No. 3 position, the included angle C between No. 1 position and No. 2 position, control the output shaft to stop at a position which is more than the current position by a pulse number N1=M1*(C / 360), to realize the water path conduction from the salt tank to the main cavity, to realize the suction of saturated brine from the salt tank and injection into the resin tank.

[0550] On the basis of the salt suction position has been positioned, switch to the backwash mode, control the output shaft of the auxiliary valve assembly counterclockwise to the 1st position, the angle D between the 1st position and the 5th position, control the output shaft to rotate to the position less than the current position by the pulse number N1=M1*(D / 360), stop the main valve assembly at the 3rd position, consistent with the salt suction mode, close the channel of the salt tank, and keep the opening of the blowdown port, to realize the backwash function.

[0551] On the basis of the backwash position has been positioned, switch to the forward washing mode, first control the output shaft of the main valve assembly counterclockwise to the 1st position, it is known that the angle B between the 3rd position and the 1st position, control the output shaft to rotate to the position less than the current position by the pulse number N1=M1*(B / 360); the output shaft of the auxiliary valve assembly clockwise to the 5th position, the angle E between the 1st position and the 5th position, control the output shaft to rotate to the position more than the current position by the pulse number N1=M1*(E / 360); realize the forward washing function.

[0552] Finally, to the maximum time of the flushing of the forward washing mode, execute the initial position positioning method again, make the valve head return to the initial soft water normal supply state, so as to complete the whole regeneration process control.

[0553] It can also be understood that the control method of the water softener valve further comprises:

[0554] Step 170, determine whether the soft water outlet quantity of the water softener valve is less than the first preset value;

[0555] If the soft water outlet quantity is less than the first preset value, it can be judged that the softening material in the softening device needs to be regenerated, and the water softener valve needs to perform the regeneration action, which includes the water injection mode, the salt melting mode, the salt suction mode and the backwash mode (may also perform the forward washing mode).

[0556] Step 180, obtain the power of the backup power supply of the water softener valve, the water softener valve is provided with a main power supply and a backup power supply;

[0557] Step 190, based on the power of the backup power supply, control the start and stop of the regeneration action of the water softener valve.

[0558] If it is determined that the power of the backup power supply can meet the power required by the regeneration action, the regeneration action can be controlled to start; if it is determined that the power of the backup power supply cannot meet the power required by the regeneration action, the regeneration action of the water softener valve is temporarily not started, so as to avoid the regeneration action being forced to stop after running for a period of time.

[0559] It can also be understood that the control method of the water softener valve comprises:

[0560] Step 210, receive 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;

[0561] The target water hardness can be set by the user or set to a water hardness suitable for the current environment. The target water hardness can be adjusted as needed or set to a fixed value.

[0562] The hardness of the soft water at the soft water inlet is consistent with the hardness of the water output from the softening device. The hardness of the soft water at the soft water inlet can be determined based on the performance of the softening device and is also related to the hardness of the raw water.

[0563] The raw water hardness at the inlet can be measured in advance by the local tap water hardness and recorded in the water softener's memory, or, but not limited to, a hardness sensor can be installed at the raw water inlet to detect the raw water hardness in a timely manner as needed.

[0564] Step 220: Based on the hardness of the soft water and the hardness of the raw water, determine the water output ratio between the soft water inlet and the bypass valve, adjust the opening of the bypass valve, and control the soft water outlet to output water with the target hardness.

[0565] With a fixed water flow rate, the hardness of the soft water outlet can be controlled by adjusting the ratio of soft water to raw water to ensure that the hardness meets the target. The soft water valve has a simple structure.

[0566] The flow rate of the soft water inlet can be detected by a flow meter upstream of the bypass valve. The upstream of the bypass valve can be understood as the soft water flowing through the flow meter and then through the bypass outlet of the bypass valve. (Reference) Figure 43 As shown, a flow meter 150 is installed in the soft water channel, and the flow meter 150 is located between the bypass outlet of the bypass valve and the soft water outlet.

[0567] It should be noted that the soft water valve includes a valve body, a main valve assembly, and a secondary valve assembly. The valve body is provided with a main chamber and a secondary chamber. In this case, the hardness of the soft water outlet can be adjusted by the bypass valve. At this time, the location of the bypass valve is not limited to being set between the raw water channel and the soft water channel.

[0568] It is understandable that step 220, which involves determining the water...

Claims

1. A water softener valve, characterized by, Comprise: a valve housing comprising a raw water inlet, a soft water outlet, a main cavity, a sub-cavity, a raw water outlet, a soft water inlet, a salt tank connecting port and a blowdown port; the raw water outlet and the soft water inlet are communicated through a softening device, and the salt tank connecting port is used for connecting a salt tank; a main valve assembly connected to the valve housing, the main valve assembly comprising a main valve core and a main driving part for driving the main valve core to move; a sub-valve assembly connected to the valve housing, the sub-valve assembly comprising a sub-valve core and a sub-driving part for driving the sub-valve core to move; in the backwashing mode, the main valve core is in the third main valve position, the raw water inlet is communicated with the sub-cavity, the raw water inlet is disconnected with the raw water outlet, the raw water outlet is communicated with the blowdown port through the main valve core; the sub-valve core is in the first sub-valve position, the sub-cavity and the soft water inlet are communicated through the sub-valve core, and the raw water inlet, the sub-cavity, the soft water inlet, the raw water outlet and the blowdown port form a communication flow path; one of the raw water inlet and the raw water outlet is always communicated with the main cavity, and in the backwashing mode, the other of the raw water inlet and the raw water outlet is disconnected with the main cavity through the main valve core; one of the soft water inlet and the sub-cavity is always communicated with the soft water outlet, and in the backwashing mode, the other of the soft water inlet and the sub-cavity is communicated with the soft water outlet through the sub-valve core.

2. The softener valve of claim 1, wherein The raw water inlet is always communicated with the sub-cavity, or in the backwashing mode, the raw water inlet is communicated with the sub-cavity through the main valve core.

3. The softener valve of claim 1, wherein In the backwashing mode, the raw water inlet is communicated with the main cavity, the main cavity is communicated with the sub-cavity, the sub-cavity is communicated with the soft water inlet through the sub-valve core, the raw water outlet is disconnected with the main cavity through the main valve core, the soft water inlet is always communicated with the soft water outlet, and the sub-cavity is disconnected with the soft water outlet through the sub-valve core.

4. The softener valve of claim 1, wherein In the backwashing mode, the raw water inlet is disconnected with the main cavity through the main valve core, the raw water inlet is communicated with the sub-cavity through the main valve core, the raw water outlet is communicated with the main cavity, the sub-cavity is always communicated with the soft water outlet, and the soft water inlet is communicated with the sub-cavity through the sub-valve core.

5. A water softener valve according to any one of claims 1 to 4, wherein Further comprising at least one of a main trigger and a sub-trigger, the main trigger is located on the movement path of the main driving part, and the sub-trigger is located on the movement path of the sub-driving part.

6. A water softener valve according to any one of claims 1 to 4, wherein The main valve assembly further comprises a main encoder connected with the main driving part, and the sub-valve assembly further comprises a sub-encoder connected with the sub-driving part, and at least one of the main encoder and the sub-encoder is provided as an AB phase encoder.

7. A control method of a water softening valve, characterized by, Applied to the soft water valve in any one of claims 1 to 6, Comprise: controlling the main driving part to rotate to a third main angle to drive the main valve core to move to the third main valve position; controlling the sub-driving part to rotate to a first sub-angle to drive the sub-valve core to move to a first sub-valve position, so that the soft water valve is switched to a backwashing mode.

8. The control method of a water softener valve according to claim 7, wherein The main driving part is set to a main initial angle at a main initial position, and an included angle from the main initial angle to the third main angle is greater than or equal to 50° and less than or equal to 90°.

9. The control method of a water softener valve according to claim 7, wherein In the step of controlling the main driving part to rotate to the third main angle to drive the main valve core to move to the third main valve position, the step comprises: obtaining a main current angle of the main driving part; determining a current main included angle from the main current angle to the third main angle, controlling the main driving part to rotate to the third main angle by the current main included angle to reach the third main angle; and / or In the step of controlling the auxiliary driving part to rotate to the first auxiliary angle to drive the auxiliary valve core to move to the first auxiliary valve position, the step comprises: obtaining an auxiliary current angle of the auxiliary driving part; driving a current auxiliary included angle from the auxiliary current angle to the first auxiliary angle, and controlling the auxiliary driving part to rotate to the first auxiliary angle by the current auxiliary included angle to reach the first auxiliary angle. In the step of obtaining the main current angle of the main driving part, 10. The control method of a water softener valve according to claim 9, wherein obtaining a current mode of the water softening valve, and determining an angle 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 part, obtaining a current mode of the water softening valve, and determining an angle position of the auxiliary driving part corresponding to the current mode as the auxiliary current angle. Further comprising:

11. The control method of a water softener valve according to claim 10, wherein obtaining a main current pulse number corresponding to a movement from the main initial position of the main driving part to the main current angle of the main driving part, and further obtaining a third main pulse number required for the movement of the main driving part from the main initial position to the third main angle, controlling the main driving part to move by a difference pulse number between the main current pulse number and the third main pulse number to reach the third main angle; and / or obtaining an auxiliary current pulse number corresponding to a movement from the auxiliary initial position of the auxiliary driving part to the auxiliary current angle of the auxiliary driving part, and further obtaining a first auxiliary pulse number required for the movement of the auxiliary driving part from the auxiliary initial position to the first auxiliary angle, controlling the auxiliary driving part to move by a difference pulse number between the auxiliary current pulse number and the first auxiliary pulse number to reach the first auxiliary angle. Before the step of controlling the auxiliary driving part to rotate to the first auxiliary angle to drive the auxiliary valve core to move to the first auxiliary valve position, the method further comprises: 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; 12. The control method of a water softener valve according to claim 7, wherein after the step of controlling the auxiliary driving part to rotate to the first auxiliary angle to drive the auxiliary valve core to move to the first auxiliary valve position, controlling the main driving part to rotate to the third main angle to drive the main valve core to move to the third main valve position. The main driving part is set to a main initial angle at a main initial position, and an included angle from the main initial angle to the third main angle is greater than or equal to 50° and less than or equal to 90°. In the second main valve position, the main valve core disconnects the raw water inlet and the auxiliary cavity.

13. The control method of a water softener valve according to claim 12, wherein In the step of controlling the main driving part to rotate to the third main angle to drive the main valve core to move to the third main valve position, 14. The control method of the water softener valve according to claim 12, wherein ​ 15. The control method of a water softener valve according to claim 7, wherein ​ 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 third main angle; and / or, in the step of controlling the auxiliary driving part to rotate to a first auxiliary angle to drive the auxiliary valve core to move to a first auxiliary valve position, controlling the auxiliary driving part to rotate to an auxiliary initial position, and then controlling the auxiliary driving part to rotate from the auxiliary initial position to the first auxiliary angle.

16. The control method of a water softener valve according to claim 15, wherein in the step of controlling the main driving part to rotate to a main initial position, if a main trigger signal of a main trigger is received, it is determined that the main driving part rotates to the main initial position, wherein the main trigger sends the main trigger signal when the main driving part moves to the main initial position; and / or, in the step of controlling the auxiliary driving part to rotate to an auxiliary initial position, if an auxiliary trigger signal of an auxiliary trigger is received, it is determined that the auxiliary driving part rotates to the auxiliary initial position, wherein the auxiliary trigger sends the auxiliary trigger signal when the auxiliary driving part moves to the auxiliary initial position.

17. The control method of a water softener valve according to claim 15, wherein in the step of controlling the main driving part to rotate from the main initial position to the third main angle, comprising, obtaining a third main pulse number corresponding to the required rotation of the main driving part from the main initial position to the third main angle, controlling the main driving part to rotate the third main pulse number to reach the third main angle; in the step of controlling the auxiliary driving part to rotate from the auxiliary initial position to the first auxiliary angle, obtaining a first auxiliary pulse number corresponding to the required rotation of the auxiliary driving part from the auxiliary initial position to the first auxiliary angle, controlling the auxiliary driving part to rotate the first auxiliary pulse number to reach the first auxiliary angle.

18. A water softener comprising: The softening device is connected between the raw water outlet and the soft water inlet.

19. A water softener comprising: The control method of the soft water valve is executed by the controller. The control method of the soft water valve is executed by the controller.

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