CN217713746U - Multi-way valve and water softener - Google Patents

Abstract

The application relates to a multiple unit valve and water softener, the multiple unit valve includes: the movable valve plate is provided with a first end surface and a second end surface which are oppositely arranged, and the first end surface is provided with a flow guide groove and a blocking part; the fixed valve plate is attached to the first end face of the movable valve plate, and a first communicating hole, a second communicating hole, a third communicating hole and a fourth communicating hole are formed in one side, facing the first end face, of the fixed valve plate; the movable valve plate and the fixed valve plate can rotate relatively, so that the multi-way valve is provided with a first regeneration station, a slow washing station and a second regeneration station; when the multi-way valve is positioned at a first regeneration station, the flow guide groove is communicated with the first communicating hole and the second communicating hole; when the multi-way valve is positioned at a slow washing station, the diversion trench is communicated with the first communicating hole and the third communicating hole, and the blocking part shields the second communicating hole; when the multi-way valve is positioned at the second regeneration station, the diversion trench is communicated with the first communicating hole and the fourth communicating hole, and the blocking part shields the second communicating hole and the third communicating hole. The multi-way valve improves the regeneration rate of resin and simplifies the structure of the multi-way valve.

Description

Multi-way valve and water softener

Technical Field

The application relates to the technical field of water treatment, in particular to a multi-way valve and a water softener.

Background

At present, a tap water source used in a city is usually collected from underground water, but the underground water usually contains angled calcium ions and magnesium ions, so that water is easy to scale in the using process, and further an electric appliance is damaged, hard water is softened, the hardness of drinking water is reduced, lithiasis can be effectively prevented, the burden of heart and kidney is relieved, and the water softener is beneficial to the health of people, so that the water softener capable of softening the hard water is used more and more frequently in life.

The water softener usually exchanges calcium ions and magnesium ions in water through functional ions on resin, so that redundant calcium ions and magnesium ions in water are adsorbed, and the aim of removing scale is fulfilled. The water softener among the prior art generally includes integrated water route and connects water softener and the confession salt device on integrated water route, and during the raw water got into water softener through integrated water route, the resin layer among the water softener can soften the raw water and export the soft water through integrated water route and supply the user to use. When all the resins are fully adsorbed with calcium and magnesium ions, the water softener can not soften tap water any more, and at the moment, backwashing regeneration needs to be carried out on the exchange resins. After the salt in the salt supply device is dissolved and saturated by the injected water, the saturated salt solution soaks the resin, so that a large number of sodium ions in the saturated salt solution replace calcium and magnesium ions adsorbed on the resin. When calcium and magnesium ions are replaced, the resin achieves the effect of reduction and regeneration, and the next water softening work is prepared.

In the existing water softener, the multi-way valve is used as a core component for controlling the flow direction of water in the integrated water channel, and water flow can be controlled to flow in different structures in different directions by controlling the multi-way valve to be switched in different stations, so that the effects of water supply, backwashing, regeneration, water replenishing and the like are realized, and therefore, waste water generated by cleaning resin and raw water to be softened are collected in the multi-way valve.

The existing five-station multi-way valve only can provide a high-concentration regenerated salt concentration, so that the regeneration rate of resin is low, the water yield of the water softener is small, and the treatment process is rough. In order to improve the regeneration rate of the resin and optimize the treatment process, a multi-way valve with more stations needs to be designed to improve the resin regeneration. However, the plurality of stations also causes the construction of the multi-way valve to be complicated, and has a plurality of structural problems and performance defects, thereby affecting the operation stability and the service life of the water softener.

SUMMERY OF THE UTILITY MODEL

The utility model provides a move valve block, case subassembly, multiple unit valve and water softener to the problem that the work needs of the unable work needs that satisfy of station quantity of multiple unit valve, should move valve block, case subassembly, multiple unit valve and water softener and can reach and simplify the technological effect of multiple unit valve's structure when increasing the station in order to improve the resin regeneration rate.

According to one aspect of the present application, there is provided a multiple-way valve comprising:

the movable valve plate is provided with a first end surface and a second end surface which are oppositely arranged, and the first end surface is provided with a flow guide groove and a blocking part positioned on one side of the flow guide groove; and

the fixed valve plate is attached to the first end face of the movable valve plate, and a first communicating hole, a second communicating hole, a third communicating hole and a fourth communicating hole are formed in one side, facing the first end face, of the fixed valve plate;

the movable valve plate and the fixed valve plate can rotate relatively, so that the multi-way valve is provided with a first regeneration station, a slow washing station and a second regeneration station;

when the multi-way valve is positioned at the first regeneration station, the diversion trench is communicated with the first communication hole and the second communication hole;

when the multi-way valve is positioned at the slow washing station, the diversion trench is communicated with the first communication hole and the third communication hole, and the blocking part shields the second communication hole;

when the multi-way valve is at a second regeneration station, the diversion trench communicates the first communication hole and the fourth communication hole, and the blocking part shields the second communication hole and the third communication hole.

In one embodiment, the blocking part divides the flow guide groove into a first flow guide part, a second flow guide part and a third flow guide part which are communicated in sequence; the first diversion part is used for communicating the first communication hole, and the third diversion part is used for alternatively communicating the second communication hole, the third communication hole or the fourth communication hole.

In one embodiment, a projection of the second flow guide part on the fixed valve plate is staggered with the second communication hole, the third communication hole or the fourth communication hole.

In one embodiment, the first flow guide part and the third flow guide part are arranged at intervals in the circumferential direction of the movable valve plate, the blocking part is located between the first flow guide part and the third flow guide part, and in the radial direction of the movable valve plate, the blocking part is located on one side of the second flow guide part.

In one embodiment, the outer contour of the guide groove and the blocking portion formed on the first end surface is located in a virtual sector, and the virtual sector bends and extends along the circumferential direction of the movable valve plate.

In one embodiment, the first communication hole, the second communication hole, the third communication hole, and the fourth communication hole are sequentially arranged at intervals in a circumferential direction of the stationary plate.

In one embodiment, the first communication hole is in a sector shape extending along the circumferential direction of the stationary blade in a curved manner.

In one embodiment, the multiway valve further includes a valve body and a valve rod, the movable valve plate and the fixed valve plate are accommodated in the valve body, a first axial end of the valve rod extends into the valve body and is in transmission fit with the movable valve plate, and the movable valve plate can rotate relative to the fixed valve plate under the driving of the valve rod, so that the first communicating hole is alternatively communicated with the second communicating hole, the third communicating hole or the fourth communicating hole through the diversion trench.

According to one aspect of the present application, there is provided a water softener including the multi-way valve described above.

In one embodiment, the water softener further comprises an integrated water path, and a water softening device and a salt supply device which are connected to the integrated water path, and the multi-way valve is arranged in the integrated water path and is connected with the water softening device and the salt supply device;

the first intercommunicating pore is used for communicating the water softening device, the second intercommunicating pore is used for communicating the salt supply device, and the third intercommunicating pore is used for communicating the water inlet end of the integrated water channel.

Above-mentioned multiple unit valve only needs to make the valve block of moving rotate relatively the fixed valve block low angle, can make first intercommunicating pore pass through the guiding gutter alternatively and communicate second intercommunicating pore, third intercommunicating pore or fourth intercommunicating pore, and then make the multiple unit valve switch fast between first regeneration station, wash station and second regeneration station slowly to when improving resin regeneration rate, improving salt solution utilization ratio, simplified the structure of multiple unit valve, reduced the design degree of difficulty of multiple unit valve.

Drawings

FIG. 1 is a schematic view of a portion of the structural modules of a water softener according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an internal structure of a multi-way valve according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a movable valve plate of the multi-way valve shown in FIG. 2;

FIG. 4 is a front view of the movable valve plate shown in FIG. 3;

FIG. 5 is a schematic structural view of a fixed valve plate of the multi-way valve shown in FIG. 2;

FIG. 6 is a schematic view of another angle of the stationary plate shown in FIG. 5;

FIG. 7 is a schematic view of the multiplex valve of FIG. 2 in a first regeneration position;

FIG. 8 is a schematic view of the multi-way valve of FIG. 2 in a slow wash station;

FIG. 9 is a schematic illustration of the conductance of the multiplex valve of FIG. 2 in a second regeneration position;

the reference numbers indicate:

100. a water softener; 20. a multi-way valve; 21. a valve body; 212. a valve cavity; 23. a valve stem; 25. a fixed valve plate; 251. a first communication hole; 252. a second communication hole; 253. a third communication hole; 254. a fourth communication hole; 256. a slow washing channel; 27. a movable valve plate; 272. a first end face; 274. a diversion trench; 2741. a first flow guide part; 2743. a second flow guide part; 2745. a third guide part; 2747. a blocking part; 40. a water softening device; 41. a resin tank; 43. a central tube; 45. an upper water distributor; 47. a lower water distributor; 60. an ejector; 80. and (4) a salt box.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

As shown in fig. 1, an embodiment of the present application provides a water softener 100, and the water softener 100 includes a water softener that can remove calcium and magnesium ions from raw water through an ion exchange resin, thereby reducing water hardness and providing soft water with low content of calcium and magnesium ions for users.

The water softener 100 includes an integrated waterway in which the multi-way valve 20 for controlling the flow direction of water is disposed, and a water softening device 40 and a salt supply device connected to the integrated waterway. The water softening device 40 includes a resin tank 41, an upper water distributor 45, a lower water distributor 47, and a central pipe 43, wherein the resin tank 41 is filled with a resin layer formed by resin particles, the central pipe 43 is vertically inserted into the resin tank 41, the upper water distributor 45 and the lower water distributor 47 are respectively installed at both ends of the central pipe 43, the upper ends of the upper water distributor 45 and the central pipe 43 are connected to the multi-way valve 20, and the lower water distributor 47 is inserted into the resin layer. The salt supply device comprises a jet device 60 and a salt tank 80, the multi-way valve 20 is communicated with the salt tank 80 through the jet device 60, the jet device 60 comprises a first water guide inlet, a first water guide outlet, a second water guide inlet and a second water guide outlet which are respectively communicated with the multi-way valve 20, raw water in the multi-way valve 20 can enter the jet device 60 through the first water guide inlet and the second water guide inlet, and salt solution generated in the jet device 60 can flow into the multi-way valve 20 through the first water guide outlet or the second water guide outlet.

The existing multi-way valve 20 generally has five stations of a water supply station, a backwashing station, a regeneration station, a water replenishing station, and a forward washing station, so that the water softener 100 has five states of a water supply state, a backwashing state, a regeneration state, a slow washing state, a water replenishing state, and a forward washing state.

When the multi-way valve 20 is located at the water supply station, the water softener 100 can soften raw water to provide qualified softened water for users to use. When the multi-way valve 20 is at the backwashing station, the raw water washes the resin layer from bottom to top in the water softening device 40 to be fluffy so as to achieve the purpose of strong washing. When the multi-way valve 20 is in the regeneration station, the brine in the brine supply device flows through the resin layer in the water softening device 40 from bottom to top, so as to achieve the purposes of cleaning and ion exchange. When the multi-way valve 20 is at the water replenishing station, raw water enters the salt supplying device to replenish water for the salt supplying device. When the multi-way valve 20 is at the forward washing station, the raw water flows through the resin layer of the water softening device 40 from top to bottom, the fluffy resin layer is slowly precipitated under the action of water pressure, and dirt is separated out while exchanging ions.

During the research process, the inventor finds that the multi-way valve 20 with only five stations can only provide a high concentration of the regeneration salt, so that the regeneration rate of the resin is low, resulting in a small water yield of the water softener 100. Moreover, the water softener 100 lacks a slow washing function and the soft water treatment process is relatively rough. In order to improve the regeneration rate of resin and optimize the soft water treatment process, the multi-way valve 20 of the application is additionally provided with a regeneration station and a slow washing station on the basis of five stations of water supply, backwashing, regeneration, water replenishing and forward washing, and the two regeneration stations can provide two different regenerated salt concentrations, so that the resin regeneration rate is improved. The slow washing station can enable raw water to slowly wash the resin layer from bottom to top, and take away broken resin and residual dirt, so that the utilization rate of salt solution is improved.

Specifically, the multi-way valve 20 has seven stations of a water supply station, a backwashing station, a first regeneration station, a slow washing station, a second regeneration station, a water replenishing station, and a forward washing station, and the multi-way valve 20 can be switched among the stations so that the water softener 100 has seven states of a water supply state, a backwashing state, a first regeneration state, a slow washing state, a second regeneration state, a water replenishing state, and a forward washing state.

When the water softener 100 is in the first regeneration state, the multi-way valve 20 is in the first regeneration position, the raw water flows into the first water guide inlet of the ejector 60 through the multi-way valve 20, the saline water in the salt tank 80 is sucked out and mixed with the raw water to form a saline solution with a first concentration due to the negative pressure, the saline solution flows out from the first water guide outlet of the ejector 60, sequentially passes through the multi-way valve 20, the central pipe 43 and the lower water distributor 47 to enter the resin layer in the resin tank 41, and the saline solution is mixed with the resin layer to displace sodium and magnesium ions on the resin layer and then is discharged from the multi-way valve 20 through the upper water distributor 45.

When the water softener 100 is in a slow washing state, the multi-way valve 20 is in a slow washing station, raw water passes through the central pipe 43 and the lower water distributor 47 in sequence by the multi-way valve 20, then the resin layer in the resin tank 41 is slowly washed from bottom to top, and the washed waste water is discharged from the multi-way valve 20 by the upper water distributor 45.

When the water softener 100 is in the second regeneration state, the multi-way valve 20 is in the second regeneration station, the raw water flows into the second water guide inlet of the ejector 60 through the multi-way valve 20, the saline in the salt tank 80 is sucked out and mixed with the raw water to form a saline solution with a second concentration due to the negative pressure, the saline solution flows out from the second water guide outlet of the ejector 60, sequentially passes through the multi-way valve 20, the central pipe 43 and the lower water distributor 47 to enter the resin layer in the resin tank 41, and the saline solution is mixed with the resin layer to displace sodium and magnesium ions on the resin layer and then is discharged from the multi-way valve 20 through the upper water distributor 45.

However, the more stations the multiplex valve 20 has, the more complicated the structure thereof. Therefore, in order to simplify the construction of the multi-way valve 20, the present application provides a multi-way valve 20 that is simple in construction and rich in functionality.

Referring to fig. 2, the multi-way valve 20 includes a valve body 21, a valve core assembly and a valve rod 23. Specifically, the valve body 21 is a hollow shell structure, and the valve body 21 is provided with a valve cavity 212 with one open end. The valve core assembly is accommodated in the valve cavity 212 of the valve body 21, the first axial end of the valve rod 23 extends into the valve cavity 212 and is in transmission fit with the valve core assembly, and the second axial end of the valve rod 23 extends out of the valve cavity 212 and is in fit with the driving unit. In this way, under the driving of the driving unit, the valve rod 23 can drive the valve core assembly to switch under different states, so as to change the working position of the multi-way valve 20 to realize different functions.

As shown in fig. 3 to 6, the fixed valve plate 25 is fixedly installed in the valve cavity 212 and located at the bottom of the valve cavity 212. Above the fixed valve plate 25, which is formed by stacking the movable valve plate 27, the first axial end of the valve rod 23 is in transmission fit with the movable valve plate 27, and the movable valve plate 27 is driven by the driving unit to rotate relative to the fixed valve plate 25. The movable valve plate 27 has a guiding groove 274, and the fixed valve plate 25 has a first communicating hole 251, a second communicating hole 252, a third communicating hole 253, and a fourth communicating hole 254.

During the rotation of the movable valve plate 27 relative to the fixed valve plate 25, the first communication hole 251 may alternatively communicate with any one of the second communication hole 252, the third communication hole 253, and the fourth communication hole 254 through the guide groove 274, thereby switching the multi-way valve 20 between the first regeneration station, the slow wash station, and the second regeneration station.

Specifically, the fixed valve plate 25 is a disk-shaped structure, and the first communication hole 251, the second communication hole 252, the third communication hole 253, and the fourth communication hole 254 are arranged at intervals in the circumferential direction of the fixed valve plate 25. Specifically, in one embodiment, the first communication hole 251 is curved and extends in a sector shape along the circumferential direction of the stationary plate 25, and the second communication hole 252, the third communication hole 253, and the fourth communication hole 254 are circular or kidney-shaped holes.

The movable valve plate 27 is substantially a disc-shaped structure similar to the fixed valve plate 25 in shape, and the movable valve plate 27 has a first end surface 272 and a second end surface oppositely arranged in the thickness direction (i.e. the direction perpendicular to the bottom of the valve cavity 212), wherein the first end surface 272 is attached to the fixed valve plate 25, and is provided with a flow guide groove 274 and a blocking portion 2747 located on one side of the flow guide groove 274, and the blocking portion 2747 divides the flow guide groove 274 into a first flow guide portion 2741, a second flow guide portion 2743 and a third flow guide portion 2745 which are sequentially communicated.

Wherein, first water conservancy diversion portion 2741 and third water conservancy diversion portion 2745 interval setting in the circumference of movable valve piece 27, second water conservancy diversion portion 2743 extends along the circumference lengthwise extension of movable valve piece 27, first water conservancy diversion portion 2741 and second water conservancy diversion portion 2743 are connected respectively at the ascending relative both ends in circumference of movable valve piece 27 to second water conservancy diversion portion 2743, blocking portion 2747 is located between first water conservancy diversion portion 2741 and the third water conservancy diversion portion 2745, and in the footpath of movable valve piece 27, blocking portion 2747 is located one side of second water conservancy diversion portion 2743.

When the first end surface 272 of the movable valve plate 27 and the fixed valve plate 25 are attached to each other, an orthographic projection of the first diversion part 2741 on the fixed valve plate 25 may coincide with the first communication hole 251 to communicate with the first communication hole 251, and an orthographic projection of the third diversion part 2745 on the fixed valve plate 25 may alternatively coincide with any one of the second communication hole 252, the third communication hole 253, and the fourth communication hole 254 to communicate with each other. An orthographic projection of the blocking portion 2747 on the fixed valve plate 25 may coincide with any one of the second communication hole 252, the third communication hole 253, and the fourth communication hole 254 for covering the remaining communication holes.

In this way, the diversion groove 274 on the movable valve plate 27 forms a "door" type structure, water in one of the second, third or fourth communication holes 252, 253, 254 of the movable valve plate 27 can flow into the first communication hole 251 sequentially through the third diversion part 2745, the second diversion part 2743, the first diversion part 2741, while the remaining communication holes are closed by the blocking part 2747. Therefore, the movable valve plate 27 can rotate by a small angle relative to the fixed valve plate 25 under the driving of the valve rod 23, that is, the first communication hole 251 can be alternatively communicated with any one of the second communication hole 252, the third communication hole 253 and the fourth communication hole 254, and the rest communication holes between the first communication hole and the fourth communication hole are simultaneously sealed to realize the rapid switching of different stations, so that the functions of the multi-way valve 20 are enriched, the structure of the valve core assembly is simplified, and the design difficulty of the multi-way valve 20 is reduced.

In an embodiment, the second diversion portion 2743 is located on a side of the blocking portion 2747 away from an outer edge of the movable valve plate 27, so that while the first diversion portion 2741 and the third diversion portion 2745 are communicated, a projection of the second diversion portion 2743 on the fixed valve plate 25 is offset from the second communication hole 252, the third communication hole 253, and the fourth communication hole 254, and the second diversion portion 2743 only serves to communicate the first diversion portion 2741 and the second diversion portion 2743, and does not cause the other communication holes that do not need to be communicated to be in a conducting state.

As a preferred embodiment, in order to match the arrangement of the first communication hole 251 and the second communication hole 252, the third communication hole 253, and the fourth communication hole 254, the outer contours of the diversion groove 274 and the blocking portion 2747 formed on the first end surface 272 are located in a virtual sector (as shown by the dotted line in fig. 3), the virtual sector is curved and extends along the circumferential direction of the movable valve plate 27, and the center of the virtual sector coincides with the rotation center of the movable valve plate 27. It is understood that the shape and size of the flow guide groove 274 are not limited thereto, and may be set as needed to meet different requirements.

It should be noted that, in the following embodiments, a slow washing passage 256 is formed on a surface of the fixed valve plate 25 on a side away from the movable valve plate 27, and one end of the slow washing passage 256 communicates with the third communication hole 253. The slow washing passage 256 is used to communicate with a raw water inlet end, and raw water flowing from the raw water inlet end can flow into the third communication hole 253 through the slow washing passage 256.

The first communication hole 251 is used for communicating the water softening device 40, the second communication hole 252 is communicated with one of the salt supplying channels of the salt supplying device, the third communication hole 253 is communicated with the raw water inlet end through a slow washing channel 256 arranged on the fixed valve plate 25, and the fourth communication hole 254 is communicated with the other salt supplying channel of the salt supplying device.

Referring to fig. 7, when the multi-way valve 20 is at the first regeneration position, the valve rod 23 drives the movable valve plate 27 to rotate to a first predetermined angle, at this time, the first diversion portion 2741 of the diversion trench 274 communicates with one end of the first communication hole 251 far away from the second communication hole 252, and the third diversion portion 2745 communicates with the second communication hole 252. The saline water with the first concentration flowing out from one of the salt supply channels of the salt supply device flows into the second communication hole 252, then sequentially flows into the first communication hole 251 through the third flow guide portion 2745, the second flow guide portion 2743 and the first flow guide portion 2741 of the flow guide groove 274, and finally flows into the resin layer in the water softening device 40, so that the purposes of cleaning and ion exchange are achieved.

Referring to fig. 8, when the multi-way valve 20 is located at the slow washing station, the valve rod 23 drives the movable valve plate 27 to rotate to a second predetermined angle, at this time, the first diversion portion 2741 of the diversion groove 274 is communicated with the middle portion of the first communication hole 251, the third diversion portion 2745 is communicated with the third communication hole 253, and the blocking portion 2747 between the first diversion portion 2741 and the second diversion portion 2743 covers the second communication hole 252 to close the second communication hole 252. The raw water at the water inlet end of the raw water flows into the third communication hole 253 through the slow washing passage 256 formed on the fixed valve plate 25, then flows into the first communication hole 251 through the third flow guiding portion 2745, the second flow guiding portion 2743 and the first flow guiding portion 2741 of the flow guiding groove 274, and finally flows into the resin layer in the water softening device 40 to take away the broken resin and the residual dirt.

Referring to fig. 9, when the multiplex valve 20 is located at the second regeneration position, the valve rod 23 drives the movable valve plate 27 to rotate to a third predetermined angle, at this time, the first diversion portion 2741 of the diversion groove 274 communicates with one end of the first communication hole 251 close to the second communication hole 252, the third diversion portion 2745 communicates with the fourth communication hole 254, and the blocking portion 2747 between the first diversion portion 2741 and the second diversion portion 2743 covers the second communication hole 252 and the third communication hole 253 to seal them. The brine with the second concentration flowing out of the second salt supply channel of the salt supply device flows into the distance fourth communication hole 254, then flows into the first communication hole 251 through the third flow guide part 2745, the second flow guide part 2743 and the first flow guide part 2741 of the flow guide groove 274 in sequence, and finally flows into the resin layer in the water softening device 40, so as to achieve the purposes of cleaning and ion exchange.

In summary, under the driving of the valve rod 23, the movable valve plate 27 of the multi-way valve 20 rotates relative to the fixed valve plate 25 to make the first communication hole 251 alternatively communicate with the second communication hole 252, the third communication hole 253 or the fourth communication hole 254, and the communication holes which do not need to communicate are simultaneously closed by the blocking portion 2747. Because the diversion trench 274 on the movable valve plate 27 forms a gate-shaped structure, the switching of the communication state can be realized only by rotating a small angle, so that the arrangement of the first communication hole 251, the second communication hole 252, the third communication hole 253 and the fourth communication hole 254 is more compact, and further, the multi-way valve 20 has a first regeneration station, a slow washing station and a second regeneration station, so that the resin regeneration rate is higher, the overall structure of the multi-way valve 20 is simplified, and the design difficulty of the multi-way valve 20 is reduced.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.

Claims (10)

1. A multiple-way valve, comprising:

the movable valve plate is provided with a first end surface and a second end surface which are oppositely arranged, and the first end surface is provided with a flow guide groove and a blocking part positioned on one side of the flow guide groove; and

the fixed valve plate is attached to the first end face of the movable valve plate, and a first communicating hole, a second communicating hole, a third communicating hole and a fourth communicating hole are formed in one side, facing the first end face, of the fixed valve plate;

the movable valve plate and the fixed valve plate can rotate relatively, so that the multi-way valve is provided with a first regeneration station, a slow washing station and a second regeneration station;

when the multi-way valve is positioned at the first regeneration station, the flow guide groove is communicated with the first communication hole and the second communication hole;

when the multi-way valve is positioned at the slow washing station, the diversion trench is communicated with the first communication hole and the third communication hole, and the blocking part shields the second communication hole;

when the multi-way valve is at a second regeneration station, the diversion trench communicates the first communication hole and the fourth communication hole, and the blocking part shields the second communication hole and the third communication hole.

2. The multiple-way valve as recited in claim 1 wherein the blocking portion divides the flow guide slot into a first flow guide portion, a second flow guide portion and a third flow guide portion which are in communication in sequence; the first diversion part is used for communicating the first communication hole, and the third diversion part is used for alternatively communicating the second communication hole, the third communication hole or the fourth communication hole.

3. The multi-way valve according to claim 2, wherein the projection of the second flow guide part on the fixed valve plate is offset from the second communication hole, the third communication hole or the fourth communication hole.

4. The multiway valve of claim 2, wherein the first and third flow guides are spaced apart from each other in a circumferential direction of the movable valve plate, and the blocking portion is located between the first and third flow guides and located on one side of the second flow guide in a radial direction of the movable valve plate.

5. The multi-way valve as claimed in claim 1, wherein the outer contours of the diversion trench and the blocking portion formed on the first end surface are located in a virtual sector, and the virtual sector is curved and extends along the circumferential direction of the movable valve plate.

6. The multi-way valve as claimed in claim 1, wherein the first communication hole, the second communication hole, the third communication hole and the fourth communication hole are sequentially arranged at intervals in a circumferential direction of the fixed valve plate.

7. The multiway valve of claim 1, wherein the first communication hole is in the shape of a sector extending along the circumferential direction of the stationary plate.

8. The multiway valve as claimed in claim 1, wherein the multiway valve further comprises a valve body and a valve stem, the movable valve plate and the fixed valve plate are both accommodated in the valve body, a first axial end of the valve stem extends into the valve body and is in transmission fit with the movable valve plate, and the movable valve plate can rotate relative to the fixed valve plate under the driving of the valve stem, so that the first communicating hole can be alternatively communicated with the second communicating hole, the third communicating hole or the fourth communicating hole through the diversion groove.

9. A water softener comprising the multi-way valve of any one of claims 1 to 8.

10. The water softener of claim 9 further comprising an integrated waterway, and a water softener and a salt supply connected to the integrated waterway, wherein the multi-way valve is disposed in the integrated waterway and connects the water softener and the salt supply;

the first intercommunicating pore is used for communicating the water softening device, the second intercommunicating pore is used for communicating the salt supply device, and the third intercommunicating pore is used for communicating the water inlet end of the integrated water channel.

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