Control valve and water softener

Abstract

The utility model discloses a control valve and a water softener. The control valve comprises a valve body, an ejector, a fixed valve plate, a movable valve plate, a valve rod, a gland and a driving device, the valve body is provided with a water inlet, a water outlet, a salt suction port, a drain outlet, an upper water distribution interface and a lower water distribution interface, and is internally provided with a jet device water inlet and a jet device water outlet which are communicated with the jet device. The fixed valve plate is provided with first to seventh through holes, and the movable valve plate is provided with a water inlet channel, a conduction channel and a drainage channel. The third through hole and the sixth through hole are communicated and then connected with a lower water distribution connector, the first through hole is connected with a water inlet of the jet device, the second through hole is connected with a water outlet of the jet device, the fourth through hole and the fifth through hole are communicated and then connected with an upper water distribution connector, and the seventh through hole is connected with a water outlet; and the sewage discharge channel is connected with the sewage discharge port. The fixed valve plate is provided with a closed area which is combined with the seven through holes to form an eight-equal-part structure. The valve has the beneficial effects that the flow channel design is optimized through the eight-equal-part structure, the fluid passing area is effectively increased, and the flow performance of the control valve is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of water treatment equipment, and more specifically to a control valve and a water softener. Background Technology

[0002] In recent years, facing different market and application demands, some users require a raw water output function during the regeneration process to solve the problem of water treatment systems running out of water during regeneration. Other users require a softening valve shut-off function to allow the softening valve to absorb salt and soak the resin before closing all channels when the system is shut down for extended periods, thus protecting the resin and preventing bacterial growth. Chinese patent ZL201420428495.3, an energy-saving multi-functional softening valve, effectively solves these problems. It is divided into 10 equal parts. The term "10 equal parts" refers to the fact that a circle with a central angle of 360° is divided into 10 equal parts, each part being 360° ÷ 10 = 36°, meaning the inlet is a 36° sector.

[0003] In the Middle East and Germany, small restaurants and beauty salons prefer softening systems with counter-current regeneration capabilities, as exemplified by Chinese patent ZL201420428495.3. This is because these systems possess both co-current and counter-current regeneration functions. However, more functions mean more divisions, which in turn reduces the outlet flow rate. To better meet market demands, there is an urgent need for softening valves with high flow rates and counter-current regeneration capabilities. Currently, the 10-division design cannot effectively meet these high flow rate requirements. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a control valve that reduces the number of functional modules and increases the water flow channel area by designing the fixed valve plate as an eight-part structure, thereby increasing the water flow rate and meeting the needs of high-flow-rate downstream regeneration.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A control valve, comprising a valve body, an ejector, a fixed valve plate, a movable valve plate, a valve stem, a gland, and a driving device for driving the valve stem and the movable valve plate. The valve body is provided with an inlet, an outlet, a brine inlet, a drain outlet, an upper water distribution interface, and a lower water distribution interface. The valve body also includes an ejector inlet and an ejector outlet connected to the ejector. The fixed valve plate has a first through hole, a second through hole, a third through hole, a fourth through hole, a fifth through hole, a sixth through hole, and a seventh through hole. The movable valve plate has an inlet... The system includes a water channel, a guiding channel, and a sewage discharge channel. The third and sixth through holes are interconnected and then connected to the lower water distribution interface. The first through hole is connected to the jet injector inlet, the second through hole is connected to the jet injector outlet, the fourth and fifth through holes are interconnected and then connected to the upper water distribution interface, the seventh through hole is connected to the outlet, the water inlet channel is connected to the water inlet, and the sewage discharge channel is connected to the sewage discharge outlet. The fixed valve plate also has a closed area, which, together with the first, second, third, fourth, fifth, sixth, and seventh through holes, forms an eight-part structure on the fixed valve plate.

[0006] As a further improvement of this utility model, the fixed valve plate and the movable valve plate have the following cooperative relationship: the water inlet channel is connected to the fifth through hole, the guiding channel is connected to the sixth and seventh through holes, the sewage discharge channel is not connected to any through hole, and the first, second, third, and fourth through holes are all closed; or, the water inlet channel is connected to the first through hole, the guiding channel is connected to the second and third through holes, the sewage discharge channel is connected to the fourth through hole, and the fifth, sixth, and seventh through holes are all closed; or, the water inlet channel is connected to the second through hole, the guiding channel is connected to the third and fourth through holes, and the sewage discharge channel is connected to the fifth through hole. The sixth, seventh, and first through holes are closed; or, the water inlet channel is connected to the third through hole, the guiding channel is connected to the fourth through hole, the sewage discharge channel is connected to the fifth through hole, and the sixth, seventh, first, and second through holes are closed; or, the water inlet channel is connected to the fourth through hole, the guiding channel is connected to the fifth through hole, the sewage discharge channel is connected to the sixth through hole, and the seventh, first, second, and third through holes are closed; or, the water inlet channel is closed, the guiding channel is connected to the fifth and sixth through holes, the sewage discharge channel is connected to the seventh through hole, and the first, second, third, and fourth through holes are closed.

[0007] As a further improvement of this utility model, the drain outlet is set on the valve stem, and the drain channel is normally connected to the drain outlet on the valve stem.

[0008] As a further improvement of this utility model, the fixed valve plate is also provided with an eighth through hole, which is located at the center of the fixed valve plate. The sewage discharge channel includes a fan-shaped part and a central part. The eighth through hole is connected to the sewage outlet, and the central part is normally connected to the eighth through hole. The fan-shaped part is used to connect the eighth through hole and one of the third, fourth, fifth, sixth, and seventh through holes.

[0009] As a further improvement of this utility model, the first through hole, the second through hole, the third through hole, the fourth through hole, the fifth through hole, the sixth through hole and the seventh through hole each occupy one equal part on the fixed valve plate, the water inlet channel occupies one equal part on the moving valve plate, the conduction channel occupies two equal parts on the moving valve plate, and the sewage discharge channel occupies one equal part on the moving valve plate.

[0010] As a further improvement of this utility model, the third through hole and the sixth through hole are arranged opposite to each other on the fixed valve plate, the fourth through hole and the fifth through hole are arranged adjacent to each other, and the closed area is arranged between the fourth through hole and the fifth through hole, and the closed area occupies an equal part.

[0011] As a further improvement of this utility model, the seventh through hole extends outward to have a bypass hole, and the moving valve plate is provided with an additional part, which is used to cover the bypass hole.

[0012] As a further improvement of this utility model, the additional part is provided on the outer edge of the conduction channel and is in the same division as the conduction channel.

[0013] Another aspect of this utility model provides a water softener, including a resin tank, a brine tank, and a softening valve. The resin tank is equipped with an upper water distributor, a central pipe, and a lower water distributor. The upper and lower water distributors are respectively located at the upper and lower ends of the central pipe. The softening valve is installed on the resin tank. A brine valve is provided in the brine tank. The brine valve is connected to the softening valve through a connecting pipe. The structure of the softening valve is as described in any of the above. The connecting pipe is connected to the brine suction port, the upper water distributor is connected to the upper water distribution interface, and the upper end of the central pipe is connected to the lower water distribution interface.

[0014] The beneficial effects of this invention are achieved by designing the fixed valve plate with an eight-part structure, reducing the number of functional modules and increasing the water flow channel area, thereby increasing the water flow rate and meeting the needs of high-flow-rate downstream regeneration. The eight-part structure increases the central angle of each part from 36° in the prior art to 45° (360°÷8), effectively increasing the cross-sectional area of ​​the water flow channel. When the inlet channel and each through-hole are matched, the water flow area increases by approximately 25% ((45°-36°) / 36°), significantly increasing the water flow rate. This is particularly suitable for the high-flow-rate downstream regeneration needs of small restaurants and beauty industries in the Middle East and Germany. Simultaneously, the eight-part structure simplifies the functional combination and reduces the internal flow resistance of the valve body, resulting in a significant increase in water output under the same water pressure conditions, solving the problem of insufficient flow rate caused by too many functional modules in the prior art. Its advanced nature lies in maximizing flow rate with minimal structural adjustments. By optimizing the through-hole layout and conduction logic, a breakthrough in flow rate is achieved while retaining the core softening function. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the valve body structure of the control valve of this utility model;

[0016] Figure 2 a and b in the figure are schematic diagrams of the moving valve plate and the fixed valve plate in Example 1;

[0017] Figures 3 to 8 This is a schematic diagram illustrating the cooperation relationship between the moving valve plate and the stationary valve plate in Example 1;

[0018] Figure 9 a and b in the diagram are structural schematics of Example 2;

[0019] Figure 10 This is a schematic diagram of the backwashing state in Example 2;

[0020] Figure 11 a and b in the diagram are structural schematics of Example 3;

[0021] Figure 12 a and b in the diagram are structural schematics of Example 4;

[0022] Figure 13 a and b in the diagram are structural schematics of Example 5. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0024] Reference Figures 1 to 3As shown, this embodiment first provides the most preferred embodiment 1, a control valve, including a valve body 30, an ejector 37, a fixed valve plate 10, a movable valve plate 20, a valve stem 61, a gland 60, and a driving device 62 for driving the valve stem 61 and the movable valve plate 20. The valve body 30 is provided with an inlet 31, an outlet 32, a brine inlet 36, a drain outlet 33, an upper water distribution interface 38, and a lower water distribution interface 39. The valve body 30 is also provided with an ejector inlet 34 and an ejector outlet 35 connected to the ejector 37. The fixed valve plate 10 is provided with a first through hole 1, a second through hole 2, a third through hole 3, a fourth through hole 4, a fifth through hole 5, a sixth through hole 6, and a seventh through hole 7. The movable valve plate 20... The valve plate 20 is equipped with an inlet channel 21, a guide channel 22, and a drain channel 23. The third through hole 3 and the sixth through hole 6 are interconnected and then connected to the lower water distribution interface 39. The first through hole 1 is connected to the jet injector inlet 34, the second through hole 2 is connected to the jet injector outlet 35, the fourth through hole 4 and the fifth through hole 5 are interconnected and then connected to the upper water distribution interface 38, and the seventh through hole 7 is connected to the outlet 32. The inlet channel 21 is connected to the inlet 31, and the drain channel 23 is connected to the drain outlet 33. The fixed valve plate 10 also has a closed area, which, together with the first through hole 1, the second through hole 2, the third through hole 3, the fourth through hole 4, the fifth through hole 5, the sixth through hole 6, and the seventh through hole 7, forms an eight-part structure on the fixed valve plate 10. During operation, the drive device 62 drives the valve plate 20 to rotate, and the water flow is switched through the combination of the inlet channel 21 and different through holes. When a large flow rate of softened water is required, the inlet channel 21 connects to the fifth through hole 5, and the connecting channel 22 connects to the sixth through hole 6 and the seventh through hole 7. At this time, raw water enters through the inlet 31, passes through the fifth through hole 5 and the upper water distribution interface 38 in sequence, and enters the resin tank 40. The softened water flows out from the outlet 32 ​​through the lower water distribution interface 39, the sixth through hole 6, and the seventh through hole 7. In this process, the eight-part structure makes the fan-shaped opening angle of the inlet channel 21 reach 45°, which is 25% larger than the 36° opening of the existing ten-part structure. This solves the problem of insufficient flow rate of the ten-part structure in the background technology and realizes the function of large flow rate co-current regeneration.

[0025] Reference Figures 2 to 8 As shown, further, the fixed valve plate 10 and the movable valve plate 20 have the following cooperative relationship: the water inlet channel 21 is connected to the fifth through hole 5, the guiding channel 22 is connected to the sixth through hole 6 and the seventh through hole 7, the sewage discharge channel 23 is not connected to any through hole, and the first through hole 1, the second through hole 2, the third through hole 3 and the fourth through hole 4 are all closed. For the operation of producing soft water: raw water → water inlet 31 → water inlet channel 21 → fifth through hole 5 → upper water distribution interface 38 → water is evenly distributed through the upper water distributor 41 → upper part of resin tank 40 → softened or filtered through resin or filter media 44 → lower part of resin tank 40 → lower water distributor 43 → central pipe 42 → lower water distribution interface 39 → sixth through hole 6 → guiding channel 22 to the seventh through hole 7 → water outlet 32.

[0026] Alternatively, the inlet channel 21 connects to the first through hole 1, the connecting channel 22 connects to the second through hole 2 and the third through hole 3, the sewage discharge channel 23 connects to the fourth through hole 4, and the fifth through hole 5, the sixth through hole 6 and the seventh through hole 7 are closed, forming a counter-current brine suction: raw water → inlet 31, divided into the following two water paths: 1) → inlet channel 21 → first through hole 1 → ejector inlet 34 → the negative pressure generated by the ejector 37 siphons the brine from the brine tank 51 into the ejector, and from the ejector outlet 35 Outflow → Second through hole 2 → Through channel 22 guides the flow to the third through hole 3 → Lower water distribution interface 39 → Central pipe 42 → Lower water distributor 43 → Lower part of resin tank 40 → Salt water passes through resin 44 to regenerate the resin → Upper part of resin tank 40 → Upper water distributor 41 → Upper water distribution interface 38 → Fourth through hole 4 → Sewage channel 23 guides the flow to the eighth through hole 8 → Wastewater is discharged from sewage outlet 33; 2) → Bypass hole 100 → Seventh through hole 7 → Water outlet 32 ​​(Original water is discharged from the water outlet).

[0027] Alternatively, the inlet channel 21 is connected to the second through hole 2, the guide channel 22 is connected to the third through hole 3 and the fourth through hole 4, and the sewage discharge channel 23, the fifth through hole 5, the sixth through hole 6, the seventh through hole 7 and the first through hole 1 are closed. For replenishing water to the brine tank: raw water → inlet 31, divided into the following two water paths: 1) → inlet channel 21 → second through hole 2 → jet outlet 35 → brine suction port 36, which flows into the brine tank 51 through the connecting pipe 50 to replenish the brine tank; 2) → bypass hole 100 → seventh through hole 7 → outlet 32 ​​(the outlet is for raw water).

[0028] Alternatively, the inlet channel 21 is connected to the third through hole 3, the guide channel 22 is connected to the fourth through hole 4, the sewage discharge channel 23 is connected to the fifth through hole 5, and the sixth through hole 6, the seventh through hole 7, the first through hole 1 and the second through hole 2 are closed for backwashing: raw water → inlet 31, divided into the following two water paths: 1) → inlet channel 21 → third through hole 3 → lower water distribution interface 39 → central pipe 42 → lower water distributor 43 → lower part of resin tank 40 → backwashing of resin or filter media → upper part of resin tank 40 → upper water distributor 41 → upper water distribution interface 38 → fifth through hole 5 → sewage discharge channel 23 guides to the eighth through hole 8 → wastewater is discharged from the sewage discharge port 33, 2) → bypass hole 100 → seventh through hole 7 → outlet 32 ​​(outlet discharges raw water).

[0029] Alternatively, the inlet channel 21 is connected to the fourth through hole 4, the guide channel 22 is connected to the fifth through hole 5, the sewage discharge channel 23 is connected to the sixth through hole 6, and the seventh through hole 7, the first through hole 1, the second through hole 2 and the third through hole 3 are closed, which is a forward wash: raw water → inlet 31, which is divided into the following two water paths: 1) → inlet channel 21 → fourth through hole 4 → upper water distribution interface 38 → upper water distributor 41 → upper part of resin tank 40 → forward flushing of resin or filter media → lower part of resin tank 40 → lower water distributor 43 → central pipe 42 → lower water distribution interface 39 → sixth through hole 6 → guide channel 22 to the fifth through hole 5 → wastewater is discharged from the sewage discharge port 33, 2) → bypass hole 100 → seventh through hole 7 → outlet 32 ​​(the outlet discharges raw water).

[0030] Alternatively, the inlet channel 21 is closed, the connecting channel 22 connects the fifth through hole 5 and the sixth through hole 6, the drain channel 23 connects the seventh through hole 7, and the first through hole 1, the second through hole 2, the third through hole 3, and the fourth through hole 4 are closed, which is considered a shutdown: all inlet channels of the moving valve plate and the through holes of the fixed valve plate are not connected. By switching between six coordination modes, various working conditions such as softening, countercurrent brine suction, water replenishment to the brine tank, backwashing, forward washing, and shutdown (stopping) can be realized. When the inlet channel 21 is closed, the resin soaking function can be realized to avoid bacterial growth caused by long-term shutdown and to help solve the shutdown protection problem mentioned in the background art. At the same time, in this embodiment, the first through hole 1 and the second through hole 2 are fan-shaped near the side of the fixed valve plate 10 to prevent the eighth through hole 8, i.e., the drain outlet 33, from connecting with the first through hole 1, i.e., the jet inlet 34, when the machine is in operation.

[0031] In this embodiment 1, the sewage discharge method uses a fixed valve plate 10 for sewage discharge, therefore referring to... Figure 2 As shown in b, the fixed valve plate 10 also has an eighth through hole 8, which is located at the center of the fixed valve plate 10. The sewage discharge channel 23 includes a fan-shaped part 232 and a central part 231. The eighth through hole 8 is connected to the sewage outlet 33, and the central part 231 is normally connected to the eighth through hole 8. The fan-shaped part 232 is used to connect the eighth through hole 8 to one of the third through hole 3, the fourth through hole 4, the fifth through hole 5, the sixth through hole 6, or the seventh through hole 7. The combined design of the central part and the fan-shaped part allows the sewage discharge channel to flexibly switch the connected objects, realize multi-path sewage discharge control, improve the adaptability of the system, and also realize the above-mentioned hard water bypass function through the bypass hole 100. (Refer to...) Figure 2 As shown in Figure a, a bypass hole 100 extends outward from the seventh through hole 7. An additional part 24 is provided on the moving valve plate 20 to cover the bypass hole 100. The additional part 24 is located at the outer edge of the conduction channel 22 and is in the same division as the conduction channel 22. This integrated design reduces the structural complexity of the moving valve plate 20, enabling simultaneous conduction and bypass control functions within a single division, thus improving space utilization.

[0032] Reference Figure 2As shown in diagram a, further, the first through hole 1, the second through hole 2, the third through hole 3, the fourth through hole 4, the fifth through hole 5, the sixth through hole 6, and the seventh through hole 7 each occupy an equal portion on the fixed valve plate 10, the water inlet channel 21 occupies an equal portion on the moving valve plate 20, the conducting channel 22 occupies two equal portions on the moving valve plate 20, and the sewage discharge channel 23 occupies an equal portion on the moving valve plate 20. This structural design makes the angle of each equal portion 45°, and the flow area of ​​the water inlet channel 21 is increased by 25% compared with the prior art. At the same time, the dual conducting channel design can realize the synchronous switching of the two sets of through holes, improving the efficiency of operating condition switching.

[0033] Reference Figure 2 As shown in Figure b, further, the third through hole 3 and the sixth through hole 6 are arranged opposite to each other on the fixed valve plate 10, and the fourth through hole 4 and the fifth through hole 5 are arranged adjacent to each other, with a closed area between the fourth through hole 4 and the fifth through hole 5, and this closed area occupies an equal division. The oppositely arranged through holes can realize two working positions.

[0034] Reference Figure 3 As shown, another aspect of this utility model provides a water softener, including a resin tank 40, a brine tank 51, and a softening valve. The resin tank 40 contains an upper water distributor 41, a central pipe 42, and a lower water distributor 43. The upper and lower water distributors 41 and 43 are respectively located at the upper and lower ends of the central pipe 42. The softening valve is mounted on the resin tank 40. A brine valve 52 is located in the brine tank 51, and this brine valve 52 is connected to the softening valve via a connecting pipe 50. The softening valve has the structure described in any of the above descriptions. The connecting pipe 50 is connected to the brine inlet 36, the upper water distributor 41 is connected to the upper water distribution interface 38, and the upper end of the central pipe 42 is connected to the lower water distribution interface 39. By integrating the softening valve with the resin tank 40, fully automatic softened water production is achieved. The cooperation of the upper and lower water distributors 41 and 43 ensures that water flows evenly through the resin layer, improving ion exchange efficiency. The brine valve 52 enables automatic replenishment of brine, reducing manual maintenance costs.

[0035] Based on the above embodiment 1, there is further embodiment 2, which is referred to Figures 9 to 10 As shown, the drain port 33 is located on the valve stem 61, and the drain channel 23 is normally connected to the drain port 33 on the valve stem 61. This design shortens the drain path, reduces flow resistance loss, and improves drain efficiency. At the same time, the integrated valve stem design simplifies the internal structure of the valve body and reduces the risk of assembly errors. In this case, the drain channel 23 eliminates the design of the central part, leaving only the fan-shaped part.

[0036] Based on the above embodiment 1, there is further embodiment 3, which is referred to Figure 11 The diagram shows a mirrored distribution setup for Example 1. Furthermore, based on Example 2, Example 4 is an extension, as shown below. Figure 12 As shown, this is the mirror distribution setup for Example 2, refer to... Figure 13 As shown, in the case of a method without hard water bypass, the bypass hole 100 is removed. Thus, during the counter-current salt suction station, the salt tank replenishment station, the backwash station, and the forward wash station, the raw water cannot enter the seventh through hole 7 through the bypass hole 100, and therefore does not have the function of discharging raw water.

[0037] In summary, the eight-part valve plate design solves the problem of insufficient flow in the existing ten-part structure by reducing the number of functional modules and increasing the water flow channel area, thus achieving high-flow countercurrent regeneration. At the same time, by optimizing the valve plate matching relationship, through-hole layout and closed area setting, the water flow distribution accuracy and sealing performance are improved. The overall water softener solution achieves efficient integration of the softening valve and resin tank, and is suitable for the high-flow countercurrent regeneration needs of small restaurants and beauty industries in the Middle East and Germany.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A control valve, comprising a valve body (30), an ejector (37), a fixed valve plate (10), a movable valve plate (20), a valve stem (61), a pressure cap (60), and a drive device (62) for driving the valve stem (61) and the movable valve plate (20), wherein the valve body (30) is provided with an inlet (31), an outlet (32), a brine inlet (36), a drain outlet (33), an upper water distribution interface (38), and a lower water distribution interface (39), and further provided within the valve body (30) with an ejector inlet (34) and an ejector outlet (35) communicating with the ejector (37), characterized in that: The fixed valve plate (10) is provided with a first through hole (1), a second through hole (2), a third through hole (3), a fourth through hole (4), a fifth through hole (5), a sixth through hole (6), and a seventh through hole (7). The moving valve plate (20) is provided with a water inlet channel (21), a guide channel (22), and a sewage discharge channel (23). The third through hole (3) and the sixth through hole (6) are interconnected and then connected to the lower water distribution interface (39). The first through hole (1) is connected to the jet injector inlet (34), and the second through hole (2) is connected to the jet injector outlet (35). The fourth through hole (4) and the fifth through hole (5) are connected to each other and then connected to the upper water distribution interface (38). The seventh through hole (7) is connected to the water outlet (32). The water inlet channel (21) is connected to the water inlet (31). The sewage discharge channel (23) is connected to the sewage outlet (33). The fixed valve plate (10) is also provided with a closed area, which is combined with the first through hole (1), the second through hole (2), the third through hole (3), the fourth through hole (4), the fifth through hole (5), the sixth through hole (6) and the seventh through hole (7) to form an eight-part structure on the fixed valve plate (10).

2. The control valve according to claim 1, characterized in that: The fixed valve plate (10) and the movable valve plate (20) have the following cooperative relationship: the water inlet channel (21) is connected to the fifth through hole (5), the guiding channel (22) is connected to the sixth through hole (6) and the seventh through hole (7), the sewage discharge channel (23) is not connected to any through hole, and the first through hole (1), the second through hole (2), the third through hole (3) and the fourth through hole (4) are all closed; or, the water inlet channel (21) is connected to the first through hole (1), the guiding channel (22) is connected to the second through hole (2) and the third through hole (3), the sewage discharge channel (23) is connected to the fourth through hole (4), and the fifth through hole (5), the sixth through hole (6) and the seventh through hole (7) are all closed; or, the water inlet channel (21) is connected to the second through hole (2), the guiding channel (22) is connected to the third through hole (3) and the fourth through hole (4), the sewage discharge channel (23) is connected to the fifth through hole (5), the sixth through hole (6) and the seventh through hole (7), and the fifth through hole (5), the sixth through hole (6) and the seventh through hole (7) are all closed; or, the water inlet channel (21) is connected to the second through hole (2), the guiding channel (22) is connected to the third through hole (3) and the fourth through hole (4), the sewage discharge channel (23) is connected to the fifth through hole (5), the sixth through hole (6) and the seventh through hole (7), the fifth through hole (5), the sixth through hole (6) and the seventh through hole (7) are all closed. The through hole (7) and the first through hole (1) are closed, or the water inlet channel (21) is connected to the third through hole (3), the guiding channel (22) is connected to the fourth through hole (4), the sewage discharge channel (23) is connected to the fifth through hole (5), the sixth through hole (6), the seventh through hole (7), the first through hole (1) and the second through hole (2) are closed, or the water inlet channel (21) is connected to the fourth through hole (4), the guiding channel (22) is connected to the fifth through hole (5), the sewage discharge channel (23) is connected to the sixth through hole (6), the seventh through hole (7), the first through hole (1), the second through hole (2) and the third through hole (3) are closed, or the water inlet channel (21) is closed, the guiding channel (22) is connected to the fifth through hole (5) and the sixth through hole (6), the sewage discharge channel (23) is connected to the seventh through hole (7), the first through hole (1), the second through hole (2), the third through hole (3) and the fourth through hole (4) are closed.

3. The control valve according to claim 1 or 2, characterized in that: The drain outlet (33) is located on the valve stem (61), and the drain channel (23) is normally connected to the drain outlet (33) on the valve stem (61).

4. The control valve according to claim 1 or 2, characterized in that: The fixed valve plate (10) is also provided with an eighth through hole (8), which is located at the center of the fixed valve plate (10). The sewage channel (23) includes a fan-shaped part (232) and a central part (231). The eighth through hole (8) is connected to the sewage outlet (33). The central part (231) is normally connected to the eighth through hole (8). The fan-shaped part (232) is used to connect the eighth through hole (8) with one of the third through hole (3), the fourth through hole (4), the fifth through hole (5), the sixth through hole (6), and the seventh through hole (7).

5. The control valve according to claim 1 or 2, characterized in that: The first through hole (1), the second through hole (2), the third through hole (3), the fourth through hole (4), the fifth through hole (5), the sixth through hole (6) and the seventh through hole (7) each occupy one equal part on the fixed valve plate (10), the water inlet channel (21) occupies one equal part on the moving valve plate (20), the conduction channel (22) occupies two equal parts on the moving valve plate (20), and the sewage discharge channel (23) occupies one equal part on the moving valve plate (20).

6. The control valve according to claim 1 or 2, characterized in that: The third through hole (3) and the sixth through hole (6) are positioned opposite each other on the fixed valve plate (10), the fourth through hole (4) and the fifth through hole (5) are positioned adjacent to each other, and the closed area is positioned between the fourth through hole (4) and the fifth through hole (5), and the closed area occupies an equal part.

7. The control valve according to claim 1 or 2, characterized in that: The seventh through hole (7) extends outward to have a bypass hole (100), and the moving valve plate (20) is provided with an additional part (24) for covering the bypass hole (100).

8. The control valve according to claim 7, characterized in that: The additional part (24) is disposed on the outer edge of the conduction channel (22) and is in the same division as the conduction channel (22).

9. A water softener, comprising a resin tank (40), a brine tank (51), and a softening valve, wherein the resin tank (40) is provided with an upper water distributor (41), a central pipe (42), and a lower water distributor (43), the upper water distributor (41) and the lower water distributor (43) being respectively disposed at the upper and lower ends of the central pipe (42), the softening valve being installed on the resin tank (40), and a brine valve (52) being provided in the brine tank (51), the brine valve (52) being connected to the softening valve through a connecting pipe (50), characterized in that: The structure of the softening valve is as described in any one of claims 1 to 8, wherein the connecting pipe (50) is connected to the brine inlet (36), the upper water distributor (41) is connected to the upper water distribution interface (38), and the upper end of the central pipe (42) is connected to the lower water distribution interface (39).

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