阅读说明：本技术 一种多功能水处理阀门 (Multifunctional water treatment valve ) 是由 李志光 于 2021-09-23 设计创作，主要内容包括：本发明的目的在于提供一种多功能水处理阀门,包括阀体,阀盖、阀芯和拔叉,阀盖固定安装在阀体上,阀芯设置于阀体内,阀体上设置有进水管、出水管、排水管和射流器,阀体的底部设置有与滤芯相连接的外滤芯接口和内滤芯接口,所述阀体内具有阀腔,所述阀芯包括定片和动片,定片固定安装在阀体上,动片与拔叉联动并相对于定片同轴密封旋转,所述定片的中心处开设有与排水管相连通的排水孔,定片沿周向逆时针分别开设有与滤芯外部连通的滤芯进液孔、与进水管相连通的进水孔、与滤芯内部连通的滤芯出液孔、与射流器出液端连通的射流出孔、与射流器进液端连通的射流进孔；所述拔叉上位于中央位置开设有由圆心朝径向作扇形延伸的中心盲孔。(The invention aims to provide a multifunctional water treatment valve, which comprises a valve body, a valve cover, a valve core and a shifting fork, wherein the valve cover is fixedly arranged on the valve body, the valve core is arranged in the valve body, the valve body is provided with a water inlet pipe, a water outlet pipe, a water drain pipe and an ejector, the bottom of the valve body is provided with an outer filter element interface and an inner filter element interface which are connected with a filter element, the valve body is internally provided with a valve cavity, the valve core comprises a fixed piece and a movable piece, the fixed piece is fixedly arranged on the valve body, the movable piece is linked with the shifting fork and coaxially and hermetically rotates relative to the fixed piece, a drain hole communicated with a drain pipe is formed in the center of the stator plate, and the stator plate is respectively provided with a filter element liquid inlet hole communicated with the outside of the filter element, a water inlet hole communicated with a water inlet pipe, a filter element liquid outlet hole communicated with the inside of the filter element, a jet outlet hole communicated with the liquid outlet end of the jet device and a jet inlet hole communicated with the liquid inlet end of the jet device along the circumferential direction anticlockwise; the central position of the pulling fork is provided with a central blind hole which extends in a fan shape from the center of a circle to the radial direction.)

1. The utility model provides a multi-functional water treatment valve, includes the valve body, valve gap, case and pulls out the fork, and valve gap fixed mounting is on the valve body, and the case sets up in the valve body, is provided with inlet tube, outlet pipe, drain pipe and ejector on the valve body, and the bottom of valve body is provided with outer filter core interface and the interior filter core interface that is connected with the filter core, the valve pocket has its characterized in that in the valve body: the valve core comprises a fixed piece and a movable piece, the fixed piece is fixedly arranged on the valve body, the movable piece is linked with the shifting fork and coaxially and hermetically rotates relative to the fixed piece, a drain hole communicated with the drain pipe is formed in the center of the fixed piece, and the fixed piece is respectively provided with a filter element liquid inlet hole communicated with the outside of the filter element, a water inlet hole communicated with the water inlet pipe, a filter element liquid outlet hole communicated with the inside of the filter element, a jet flow outlet hole communicated with the liquid outlet end of the jet device and a jet flow inlet hole communicated with the liquid inlet end of the jet device along the circumferential direction anticlockwise;

the central blind hole extending in a fan shape from the center of a circle to the radial direction is formed in the central position of the shifting fork, the first blind hole, the second blind hole, the first through hole, the second through hole and the third through hole are formed in the shifting fork along the circumferential direction, the three blind holes are used for communicating two adjacent through holes in the stator plate to change the flow direction of fluid, and the three through holes are used for communicating one through hole in the stator plate with the valve cavity and the water outlet pipe;

the central position of the moving plate is provided with a central blind hole conducting hole communicated with the central blind hole of the shifting fork, the peripheral sides of the moving plate are respectively provided with a first blind hole conducting hole and a second blind hole conducting hole correspondingly communicated with the first blind hole of the shifting fork, a third blind hole conducting hole and a fourth blind hole conducting hole communicated with the second blind hole of the shifting fork, and a first conducting hole, a second conducting hole and a third conducting hole respectively communicated with the first through hole, the second through hole and the third through hole of the shifting fork.

2. The multi-functional water treatment valve of claim 1, wherein: and sealing rings are arranged between the fixed piece and the valve body and between the movable piece and the shifting fork.

3. The multi-functional water treatment valve of claim 1, wherein: an elastic structural part is arranged between the shifting fork and the valve cover.

4. The multi-functional water treatment valve of claim 3, wherein: the elastic structural part is a wave spring.

5. The multi-functional water treatment valve of claim 1, wherein: the valve body, the filter element, the shifting fork and the valve cover are enclosed together to form the valve cavity communicated with the water outlet pipe,

6. the multi-functional water treatment valve of claim 1, wherein: the water inlet hole comprises a first water inlet hole and a second water inlet hole which are independently arranged.

7. The multi-functional water treatment valve of claim 1, wherein: the filter element liquid outlet holes comprise a first filter element liquid outlet hole and a second filter element liquid outlet hole which are independently arranged.

8. The multi-functional water treatment valve of claim 1, wherein: the filter element comprises a resin tank positioned on the outer layer and a central pipe positioned in the resin tank, a water distributor communicated with the resin tank is arranged at the bottom of the central pipe 16, and a filter layer is filled between the resin tank and the central pipe.

9. The multi-functional water treatment valve of claim 8, wherein: the filter layer is a tubular resin filter layer.

10. The multi-functional water treatment valve of claim 8, wherein: the filter layer is a granular filter layer.

Technical Field

The invention relates to the field of valves, in particular to a multifunctional water treatment valve.

Background

In daily life, domestic water contains many inorganic salts, such as calcium and magnesium salts. The salts can not be found by naked eyes in water at normal temperature, once the salts are heated and boiled, a plurality of calcium and magnesium salts are precipitated as carbonate, and the carbonate clings to the kettle wall to form scale. Some waters with high calcium and magnesium ion content do not show scale formation because these calcium and magnesium ions are present as chloride salts, which are soluble and do not precipitate on heating.

The contents of calcium and magnesium ions in water are generally expressed by "hardness" index. Hardness 1 degree corresponds to 10 mg of calcium oxide per liter of water. Water with a temperature lower than 8 ℃ is called soft water, water with a temperature higher than 17 ℃ is called hard water, and water with a temperature between 8 and 17 ℃ is called medium hard water. Rain, snow water, river and lake water are soft water, and spring water, deep well water and sea water are hard water. While the industry uses distinct criteria, the industry generally refers to only water with hardness <1 as soft water, often between 1 and 10 as hard water in general, and water with hardness >10 as high hardness water in general. The hardness of water has a great influence on daily life. For example, when the hardness of water is high, the clothes do not bubble; the foreign place of sojourn can have the symptom of water and soil inadequacy due to the inadaptation of the hardness of drinking water; the heat conductivity of the kettle is reduced due to the scale accumulated in the kettle; scale from industrial boilers can cause explosion accidents. Therefore, domestic and industrial water should have its hardness properly controlled. If drinking soft water (pure water) frequently, cardiovascular and cerebrovascular diseases are easy to obtain, and if drinking hard water (mineral water) frequently, kidney stones are easy to obtain.

In recent years, people pay more and more attention to the quality of life, and the safety of domestic water is also paid extensive attention. The country also has a plurality of policies about water use safety, and the water is used for assisting the healthy water. Therefore, the water treatment industry has been rapidly developed in recent years. The water treatment valve is a key part of the water treatment system and controls the whole water treatment process. In the prior art, most water treatment valves are plane sealing structures, but certain defects exist in the structural reasonability and the durability of sealing sheets.

Disclosure of Invention

The present invention is directed to a multifunctional water treatment valve, which solves the above problems.

In order to achieve the purpose, the invention provides the following technical scheme:

a multifunctional water treatment valve comprises a valve body, a valve cover, a valve core and a shifting fork, wherein the valve cover is fixedly arranged on the valve body, the valve core is arranged in the valve body, a water inlet pipe, a water outlet pipe, a water drain pipe and an ejector are arranged on the valve body, an outer filter element interface and an inner filter element interface which are connected with a filter element are arranged at the bottom of the valve body, a valve cavity is arranged in the valve body, the valve core comprises a stator plate and a rotor plate, the stator plate is fixedly arranged on the valve body, the rotor plate is linked with the shifting fork and coaxially and hermetically rotates relative to the stator plate, a water drain hole communicated with the water drain pipe is formed in the center of the stator plate, and the stator plate is respectively provided with a filter element liquid inlet hole communicated with the outside of the filter element, a water inlet hole communicated with the water inlet pipe, a filter element liquid outlet hole communicated with the inside of the filter element, a jet outlet hole communicated with the liquid outlet end of the ejector and a jet inlet hole communicated with the liquid inlet end of the ejector anticlockwise in the circumferential direction;

the central blind hole extending in a fan shape from the center of a circle to the radial direction is formed in the central position of the shifting fork, the first blind hole, the second blind hole, the first through hole, the second through hole and the third through hole are formed in the shifting fork along the circumferential direction, the three blind holes are used for communicating two adjacent through holes in the stator plate to change the flow direction of fluid, and the three through holes are used for communicating one through hole in the stator plate with the valve cavity and the water outlet pipe;

the central position of the moving plate is provided with a central blind hole conducting hole communicated with the central blind hole of the shifting fork, the peripheral sides of the moving plate are respectively provided with a first blind hole conducting hole and a second blind hole conducting hole correspondingly communicated with the first blind hole of the shifting fork, a third blind hole conducting hole and a fourth blind hole conducting hole communicated with the second blind hole of the shifting fork, and a first conducting hole, a second conducting hole and a third conducting hole respectively communicated with the first through hole, the second through hole and the third through hole of the shifting fork.

As a further improvement of the invention: and sealing rings are arranged between the fixed piece and the valve body and between the movable piece and the shifting fork.

As a further improvement of the invention: an elastic structural part is arranged between the shifting fork and the valve cover.

As a further improvement of the invention: the elastic structural part is a wave spring.

As a further improvement of the invention: the valve body, the filter element, the shifting fork and the valve cover are enclosed together to form the valve cavity communicated with the water outlet pipe,

as a further improvement of the invention: the water inlet hole comprises a first water inlet hole and a second water inlet hole which are independently arranged.

As a further improvement of the invention: the filter element liquid outlet holes comprise a first filter element liquid outlet hole and a second filter element liquid outlet hole which are independently arranged.

As a further improvement of the invention: the filter element comprises a resin tank positioned on the outer layer and a central pipe positioned in the resin tank, a water distributor communicated with the resin tank is arranged at the bottom of the central pipe 16, and a filter layer is filled between the resin tank and the central pipe.

As a further improvement of the invention: the filter layer is a tubular resin filter layer.

As a further improvement of the invention: the filter layer is a granular filter layer.

Compared with the prior art, the invention has the beneficial effects that:

1. the valve core of the multifunctional water treatment valve adopts a plane sealing penta-partition structure, so that the flow cross section area of the valve is increased to the maximum extent, and the flow of the valve is increased reasonably;

2. according to the invention, the fixed piece of the valve core is provided with the first water inlet hole and the second water inlet hole which are communicated with the water inlet pipe, and the first water inlet hole and the second water inlet hole are controlled to be respectively communicated through the movable piece and the shifting fork, so that the flow area of inlet water in the valve is controlled, the whole valve is prevented from bearing the maximum pressure at the water inlet, and the service life of the valve can be prolonged;

3. compared with the prior art, the movable plate and the fixed plate are arranged in the full through hole, and the conduction blind hole is arranged on the shifting fork, the fixed plate mainly plays a role in conduction, current limitation and a role of a friction piece, so that the phenomenon that two sealing plate ring waters directly bear pressure can be effectively avoided, the main pressure bearing part is transferred to an elastic structural member on the shifting fork, the problem of cracking of the ring waters is well solved, the elastic structure also reduces the rotation torque of the shifting fork, and the economy is improved.

Drawings

FIG. 1 is a schematic structural diagram of a multifunctional water treatment valve;

FIG. 2 is a top view of a valve body of the multi-functional water treatment valve;

FIG. 3 is a side cross-sectional view of the multi-functional water treatment valve (with the valve cover omitted);

FIG. 4 is a schematic view of the assembly of the multifunctional water treatment valve and the filter element;

FIG. 5 is a schematic structural view of the stator;

FIG. 6 is a schematic structural view of the rotor;

FIG. 7 is a schematic structural view of the shift fork;

FIG. 8 is a schematic view of the engagement of the stator and the shift fork when the multifunctional water treatment valve is in the soft water making operation condition;

FIG. 9 is a schematic diagram of the engagement of the stator and the yoke when the multifunctional water treatment valve is in a water-replenishing condition;

FIG. 10 is a schematic view of the combination of the stator and the yoke when the multifunctional water treatment valve is in the salt absorption condition;

FIG. 11 is a schematic diagram of the fitting of the stator and the shift fork when the multifunctional water treatment valve is under the backwashing condition;

FIG. 12 is a schematic view of the engagement of the stator and the yoke when the multifunctional water treatment valve is in the normal washing condition;

FIG. 13 is a schematic view of the engagement of the stator and the yoke when the multi-functional water treatment valve is in a closed condition;

in the figure: the filter element water inlet flow passage comprises a water inlet flow passage 1, a filter element liquid inlet flow passage 2, a water discharge flow passage 3, a filter element liquid outlet flow passage 4, a valve cavity 5, an ejector outlet flow passage 6, an ejector inlet flow passage 7, an ejector 8, a valve body 9, a valve core seat 10, a water inlet pipe 11, a water outlet pipe 12, a water discharge pipe 13, a salt absorption pipe 14, a resin tank 15, a central pipe 16, a resin filter layer 17, a connecting pipe 18 and a salt box 19;

the filter element comprises a stator 20, a first water inlet hole 1a1, a second water inlet hole 1a2, a filter element liquid inlet hole 2a, a water outlet hole 3a, a first filter element liquid outlet hole 4a1, a second filter element liquid outlet hole 4a2, a jet flow outlet hole 6a and a jet flow inlet hole 7 a;

the shifting fork 22, a first blind hole 1', a central blind hole 2', a second blind hole 3', a first through hole 4', a second through hole 5 'and a third through hole 6';

the moving plate 21, a first blind via hole 1'b1, a second blind via hole 1' b2, a central blind via hole 2'b, a third blind via hole 3' b1, a fourth blind via hole 3'b2, a first via hole 4' b, a second via hole 5'b, and a third via hole 6' b;

outer filter element interface 23, inner filter element interface 24, valve gap 25, wave spring 26.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1-3, in the present embodiment, a multifunctional water treatment valve includes a valve body 9, a valve cover 25 mounted on the valve body 9, a valve core for changing a flow passage is disposed on a valve core seat 10 in the valve body 9, a water inlet pipe 11, a water outlet pipe 12, a water outlet pipe 13 and an ejector 8 are disposed on the valve body 9, an outer filter core interface 23 and an inner filter core interface 24 connected to the filter core are disposed at the bottom of the valve body 9, and a pull fork 22 for adjusting the valve core is disposed in the valve body 9.

The central position in the valve core seat 10 is provided with a drainage flow channel 3 communicated with a drainage pipe 13, and the valve core seat 10 is sequentially provided with a filter element liquid inlet flow channel 2 communicated with an outer filter element interface 23, a water inlet flow channel 1 communicated with a water inlet pipe 11, a filter element liquid outlet flow channel 4 communicated with an inner filter element interface 24, an ejector inlet flow channel 7 communicated with an ejector 8 and an ejector outlet flow channel 6 along the anticlockwise circumferential direction. The valve body 9, the filter element, the shifting fork 22 and the valve cover 25 jointly enclose a valve cavity 5 communicated with the water outlet pipe 12.

Referring to fig. 4, when the multifunctional water treatment valve is used, the outer filter element connector 23 and the inner filter element connector 24 at the bottom of the valve body 9 are respectively connected with the outside and the inside of the filter element, the filter element is provided with a tubular filter layer, the text adopts the outside of the filter element and the inside of the filter element, and if a granular filter layer is adopted, the text can adopt the upper part and the lower part of the filter element. The following description will be made only with respect to the use of a tubular filter layer. The filter element comprises a resin tank 15 positioned on the outer layer and a central pipe 16 positioned in the resin tank 15, wherein a water distributor communicated with the resin tank 15 is arranged at the bottom of the central pipe 16, and a tubular resin filter layer 17 is filled between the resin tank 15 and the central pipe 16. When the valve core inlet flow channel 2 of the valve core seat 10 is connected with the resin filter layer 17, the filter core outlet flow channel 4 of the valve core seat 10 is communicated with the inside of the resin filter layer 17, in other words, the filter core inlet flow channel 2 is communicated with the filter core outlet flow channel 4 through the resin filter layer 17. The water inlet pipe 11 is connected with raw water, the ejector 8 is of a structure known by persons skilled in the art, and the salt absorption pipe 14 on the ejector 8 is connected with the salt tank 19 through a connecting pipe 18.

Referring to fig. 5, the valve core includes two sealing plates, i.e., a fixed plate 20 and a movable plate 21, the fixed plate 20 is fixedly mounted on the valve core seat 10, and the movable plate 21 is linked with a shift fork 22 and coaxially and hermetically rotates relative to the fixed plate 20. The central part of the stator 20 is provided with a drain hole 3a communicated with the drain channel 3 and the drain pipe 13, the stator 20 is respectively provided with a filter element liquid inlet hole 2a communicated with the filter element liquid inlet channel 2 and the outside of the filter element, a first water inlet hole 1a1 and a second water inlet hole 1a2 communicated with the water inlet channel 1 and the water inlet pipe 11, a first filter element liquid outlet hole 4a1 and a second filter element liquid outlet hole 4a2 communicated with the filter element liquid outlet channel 4 and the inside of the filter element, a jet outlet hole 6a communicated with the jet device outlet channel 6 and the liquid outlet end of the jet device 8, and a jet inlet hole 7a communicated with the jet device inlet channel 7 and the liquid inlet end of the jet device 8 along the circumferential direction anticlockwise.

Referring to fig. 7, a central blind hole 2 'extending in a fan shape from a circle center to a radial direction is formed in the central position of the yoke 22, a first blind hole 1', a second blind hole 3', a first through hole 4', a second through hole 5 'and a third through hole 6' are formed in the yoke 22 along the circumferential direction, the three blind holes are used for communicating two adjacent through holes on the stator plate 20 to change the flow direction of the fluid, and the three through holes are used for communicating one through hole on the stator plate 20 with the valve cavity 5 and the water outlet pipe 12, that is, when any through hole on the yoke 22 coincides with one through hole on the stator plate 20, the fluid can flow into the valve cavity 5 from the through hole on the stator plate 20 or flow out from the valve cavity 5.

With reference to fig. 6, the rotor 21 is provided with a plurality of through holes, that is, the rotor 21 is designed to be a full through hole, the center of the rotor 21 is provided with a center blind hole via 2'b communicated with the center blind hole 2' of the yoke 22, the peripheral side of the rotor 21 is respectively provided with a first blind hole via 1'b1 and a second blind hole via 1' b2 correspondingly communicated with the first blind hole 1 'of the yoke 22, a third blind hole via 3' b1 and a fourth blind hole via 3'b2 communicated with the second blind hole 3' of the yoke 22, a first via 4'b, a second via 5' b and a third via 6'b respectively communicated with the first through hole 4', the second through hole 5 'and the third through hole 6' of the yoke 22.

Sealing rings are arranged between the fixed plate 20 and the valve core seat 10 and between the movable plate 21 and the shifting fork 22.

The valve core of the multifunctional water treatment valve adopts a plane sealing structure, the main sealing elements are two sealing pieces, namely a moving piece 21 and a fixed piece 20, and the flow channel is switched in the process that the moving piece 21 and a shifting fork 22 synchronously rotate, so that the functions of the valve are realized: operation, water supplement, salt absorption, backwashing, normal washing and closing.

The sealing sheet of the valve core adopts a five-equal-division structure, so that the flow cross section area of the valve is increased to the maximum extent, and the flow of the valve is increased reasonably.

The pressure of the water inlet is the largest, the fixed piece 20 of the valve core is provided with the first water inlet hole 1a1 and the second water inlet hole 1a2 which are communicated with the water inlet pipe 11, and the first water inlet hole 1a1 and the second water inlet hole 1a2 are controlled to be respectively communicated through the movable piece 21 and the shifting fork 22, so that the flow area of inlet water in the valve is controlled, the whole valve is prevented from bearing the largest pressure, and the service life of the valve can be prolonged.

It should be noted that the moving plate 21 and the fixed plate 20 of the present invention are all through holes, and the blind through hole is disposed on the shifting fork 22, whereas in the prior art, the blind through hole is disposed on the moving plate 21. Compared with the prior art, stator 20 and rotor 21 mainly play and switch on, the current-limiting and act as the friction member, thereby can effectively avoid two sealing washer waters and directly bear pressure, main pressure-bearing part shifts to the elastic construction on shifting fork 22 on, this elastic construction sets up between shifting fork 22 and valve gap 25, wave spring 26 specifically can be adopted, and then the problem of fine solution coil water fracture, if freeze the fracture phenomenon etc., and this elastic construction has still reduced the rotatory moment of torsion of shift fork, reduce the consumption that is used for driving shifting fork 22 pivoted motor, the economic type is improved.

The following describes in detail the functions of the stator plate 20, the rotor plate 21 and the yoke 22 in different fitting states.

Since the through holes of the rotor plate 21 are communicated with the through holes or blind holes of the yoke 22, the following description will be given only by using the engagement state of the stator plate 20 and the yoke 22 in the functional state of the valve.

Referring to fig. 8, fig. 8 is a schematic diagram of the cooperation between the stator 20 and the yoke 22 when the multifunctional water treatment valve of the present invention is in the soft water making operation. The shifting fork 22 is rotated, so that the first blind hole 1' in the shifting fork 22 leads to the first water inlet hole 1a1 in the stator 20 and the filter element liquid inlet hole 2a, the first filter element liquid outlet hole 4a1 and the second filter element liquid outlet hole 4a2 in the stator 20 are respectively led to the third through hole 6' and the second through hole 5' in the shifting fork 22, and all the other holes in the stator 20 are in a cut-off state, so that the water inlet pipe 11, the filter element, the valve cavity 5 and the water outlet pipe 12 are sequentially led to be communicated and form an operation passage, the raw water is filtered by the filter element by the water inlet pipe 11 to prepare soft water, and then flows into the valve cavity 5 through the first filter element liquid outlet hole 4a1, the third through hole 6' and the second filter element liquid outlet hole 4a2 and the second through hole 5', and the soft water is discharged by the water outlet pipe 12.

Referring to fig. 9, fig. 9 is a schematic diagram of the cooperation between the stator 20 and the yoke 22 when the multifunctional water treatment valve is in the water replenishing condition. The shifting fork 22 is rotated to enable the first blind hole 1' on the shifting fork 22 to conduct the first water inlet hole 1a1 and the filter element liquid inlet hole 2a on the stator 20, the second through hole 5' and the third through hole 6' on the shifting fork 22 are respectively communicated with the first filter element liquid outlet hole 4a1 and the second filter element liquid outlet hole 4a2 on the stator 20, the first through hole 4' on the shifting fork 22 is communicated with the jet flow outlet hole 6a on the stator 20, and the rest holes on the stator 20 are all in a cut-off state, so that the water inlet pipe 11, the filter element, the valve cavity 5, the liquid outlet end of the jet device 8 and the salt tank 19 are sequentially communicated to form a water supplementing passage, the raw water is filtered by the filter element to form soft water by the water inlet pipe 11, and the soft water flows back to the liquid outlet end of the jet device 8 through the first through hole 4' and the jet flow outlet hole 6a after flowing into the salt tank 19, and then the soft water is supplemented into the salt tank 19. In addition, the soft water in the valve cavity 5 can be discharged by the water outlet pipe 12 at the same time, namely the soft water is prepared while the water is supplemented.

Referring to fig. 10, fig. 10 is a schematic view of the combination of the timing piece 20 and the shifting fork 22 when the multifunctional water treatment valve is in the salt absorption working condition. The first through hole 4 'and the third through hole 6' on the shifting fork 22 are respectively communicated with the jet flow inlet hole 7a and the second water inlet hole 1a2 on the stator plate 20, the central blind hole 2 'on the shifting fork 22 conducts the filter element liquid inlet hole 2a and the drain hole 3a on the stator plate 20, the second blind hole 3' on the shifting fork 22 conducts the second filter element liquid outlet hole 4a2 on the stator plate 20 and the jet flow outlet hole 6a, and other hole sites on the stator plate 20 are stopped. The water inlet pipe 11, the valve cavity 5, the ejector 8, the filter element and the drain pipe 13 are sequentially communicated to form a salt absorption regeneration passage, raw water directly flows into the valve cavity 5 from the water inlet pipe 11 and flows to the filter element through the ejector 8, when the raw water flows in the ejector 8, salt liquid in the salt tank 19 enters the ejector 8 through the salt absorption pipe 14 and is mixed with the raw water to form reaction liquid, the reaction liquid flows through the filter element from inside to outside (namely, the flow direction is opposite to that in soft water preparation), so that the resin filter layer 17 is backwashed by the reaction liquid, and the backwashed waste liquid is discharged through the drain pipe 13. It should be reminded that the raw water in the valve cavity 5 can be directly discharged through the water outlet pipe 12, so that the function of using the raw water is realized while the salt absorption reaction is performed.

Referring to fig. 11, fig. 11 is a schematic diagram of the cooperation between the stator 20 and the shift fork 22 when the multifunctional water treatment valve is under the backwashing condition. The first through hole 4' and the second through hole 5' of the shift fork 22 are respectively communicated with the first filter element liquid outlet hole 4a1 and the first water inlet hole 1a1 on the stator plate 20, the central blind hole 2' of the shift fork 22 enables the filter element liquid inlet hole 2a and the water outlet hole 3a on the stator plate 20 to be communicated, and other hole sites on the stator plate 20 are stopped. Therefore, the water inlet pipe 11, the valve cavity 5, the filter element and the drain pipe 13 are sequentially communicated, a backwashing passage which reversely flows through the filter element from the first filter element liquid outlet hole 4a1 and then flows out from the filter element liquid inlet hole 2a is formed, raw water flows into the valve cavity 5 from the water inlet pipe 11 and then flows through the filter element reversely and then is discharged from the drain pipe 13, and therefore the resin filter layer 17 in the filter element is reversely flushed.

Referring to fig. 12, fig. 12 is a schematic diagram of the combination of the stator 20 and the yoke 22 when the multifunctional water treatment valve is in the normal washing condition. The first through hole 4' and the second through hole 5' of the shifting fork 22 are respectively communicated with the second water inlet hole 1a2 and the filter element liquid inlet hole 2a on the stator plate 20, the central blind hole 2' of the shifting fork 22 enables the second filter element liquid outlet hole 4a2 and the drain hole 3a on the stator plate 20 to be communicated, and other hole sites on the stator plate 20 are stopped. Therefore, the water inlet pipe 11, the valve cavity 5, the filter element and the drain pipe 13 are sequentially communicated, a forward washing passage which flows through the filter element from the filter element liquid inlet hole 2a in the forward direction and flows out from the second filter element liquid outlet hole 4a2 is formed, raw water flows into the valve cavity 5 from the water inlet pipe 11 and then flows through the filter element in the forward direction and is discharged from the drain pipe 13, and the resin filter layer 17 in the filter element is reversely washed.

It should be reminded that, under the above working conditions of forward washing and backwashing, the water flowing into the valve chamber 5 can be directly discharged from the water outlet pipe 12, that is, under the working conditions of forward washing and backwashing, the function of raw water is realized.

Referring to fig. 13, fig. 13 is a schematic diagram illustrating the cooperation between the stator 20 and the yoke 22 when the multifunctional water treatment valve is in the closed condition; at this time, all the blind holes and through holes on the yoke 22 are not communicated with the through holes on the rotor 21, that is, all the through holes on the rotor 21 are in a cut-off state, and the valve is closed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.

Although the embodiments have been described, once the basic inventive concept is obtained, other variations and modifications of these embodiments can be made by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes using the contents of the present specification and drawings, or any other related technical fields, which are directly or indirectly applied thereto, are included in the scope of the present invention.