Control valve and water softener

Abstract

The present application relates to the technical field of water treatment devices, and in particular to a control valve and a water softener. The control valve comprises a valve seat and a movable disc, a communicating groove and at least one water channel are provided in the valve seat, a boss is provided on a bottom wall of the communicating groove, the diameter of the boss is smaller than the diameter of the communicating groove, at least one water distribution cavity is provided in the boss, and the water distribution cavity communicates with the water channel and the communicating groove. The movable disc is attached to the boss, and the diameter of the movable disc is smaller than the diameter of the communicating groove; a peripheral wall of the boss, a peripheral wall of the movable disc and a peripheral wall of the communicating groove jointly form a water inlet groove; and a plurality of water through holes are formed in the movable disc, the total area of the water through holes is smaller than the sum of the cross-sectional areas of the water distribution cavities, and the movable disc is rotatable relative to the valve seat, so as to control the connection and disconnection of the communicating groove and the water distribution cavity. The control valve of the present application has the advantages of a smoother flow of internal water and a large water supply flow, and water in the communicating groove exerts a pressure on the movable disc, such that the movable disc remains attached to the boss, thereby simplifying the fixing and connecting structure of the movable disc, and reducing the size of the control valve.

Description

Control valves and water softeners

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 2024102307639, filed on February 29, 2024, entitled “Control Valve and Water Softener” and No. 2024203942282, filed on February 29, 2024, entitled “Control Valve and Water Softener”, both of which are incorporated herein by reference in their entirety. Technical Field

[0003] The present application relates to the technical field of water treatment devices, and in particular to a control valve and a water softener. Background Art

[0004] In the related art, the internal structure design of the control valve is unreasonable, resulting in unbalanced water pressure in the control valve, blocked water flow, small water flow rate of the water softener, untimely water supply, and poor user experience.

[0005] Summary of the Invention

[0006] The present application aims to solve at least one of the technical problems existing in the related art. To this end, the present application proposes a control valve, comprising:

[0007] A valve seat, wherein a connecting groove and at least one water channel are provided in the valve seat, a boss is provided on the bottom wall of the connecting groove, the diameter of the boss is smaller than the diameter of the connecting groove, and at least one water diversion cavity is provided on the boss, the water diversion cavity connects the water channel and the connecting groove;

[0008] A movable disc is attached to the boss, and the diameter of the movable disc is smaller than the diameter of the connecting groove. The peripheral wall of the boss, the peripheral wall of the movable disc and the peripheral wall of the connecting groove jointly constitute a water inlet groove. The movable disc is provided with a plurality of water holes, and the total area of ​​the plurality of water holes is smaller than the sum of the cross-sectional areas of the water diversion chamber. The movable disc is rotatable relative to the valve seat to control the opening and closing of the connecting groove and the water diversion chamber.

[0009] In some embodiments, the boss is further provided with a water inlet cavity.

[0010] In some embodiments, the water inlet cavity is communicated with the water inlet trough.

[0011] In some embodiments, the boss is divided into six sector-shaped areas along the circumferential direction.

[0012] In some embodiments, each sector has an inner region and an outer region along the radial direction.

[0013] In some embodiments, both the inner region and the outer region are provided with sub-cavities.

[0014] In some embodiments, the six sector-shaped areas are the first sector, the second sector, the third sector, the fourth sector, the fifth sector and the sixth sector, respectively.

[0015] In some embodiments, the sub-cavity in the inner zone and the sub-cavity in the outer zone of the first sector and the sub-cavity in the outer zone of the second sector are connected to define the water inlet cavity.

[0016] In some embodiments, a plurality of water-blocking ribs are provided on the side of the movable plate facing the boss.

[0017] In some embodiments, a water inlet is provided on one side of the moving disc.

[0018] In some embodiments, the water inlet penetrates the edge of the moving disk in the radial direction of the moving disk.

[0019] In some embodiments, the water inlet is communicated with the water hole.

[0020] In some embodiments, the control valve provided by the embodiments of the present invention further includes a fixed disk.

[0021] In some embodiments, a diameter of the fixed disk is smaller than a diameter of the connecting groove.

[0022] In some embodiments, the fixed plate is sandwiched between the movable plate and the boss.

[0023] In some embodiments, at least one communication hole is provided on the fixed plate.

[0024] In some embodiments, the communicating holes are connected to the water diversion chambers in a one-to-one correspondence.

[0025] In some embodiments, the control valve provided by the embodiments of the present invention further includes a gasket.

[0026] In some embodiments, the gasket is sandwiched between the fixed plate and the boss.

[0027] In some embodiments, the control valve provided by the embodiments of the present invention further includes a rotating shaft and a drive motor.

[0028] In some embodiments, one end of the rotating shaft is connected to the moving disk.

[0029] In some embodiments, the other end of the rotating shaft is connected to the driving motor through a transmission assembly.

[0030] In some embodiments, a connecting disc is provided at one end of the rotating shaft.

[0031] In some embodiments, the connecting disk is connected to the moving disk.

[0032] In some embodiments, a limiting block is provided on a side of the connecting disk facing the moving disk.

[0033] In some embodiments, a matching groove is provided on the movable disk.

[0034] In some embodiments, the limiting block is embedded in the matching groove to limit the movable disk.

[0035] In some embodiments, the connecting plate is provided with a positioning notch.

[0036] In some embodiments, a mating block is provided on a side of the moving disk facing the connecting disk.

[0037] In some embodiments, the matching block is embedded in the positioning notch to position the moving disk and the connecting disk.

[0038] In some embodiments, the control valve provided by the embodiments of the present invention further includes a gland.

[0039] In some embodiments, the gland cover is disposed on the communicating groove and connected to the valve seat.

[0040] In some embodiments, the rotating shaft passes through the pressure cover.

[0041] In some embodiments, a pressure block is provided on a side of the pressure cover facing the valve seat.

[0042] In some embodiments, the pressing block abuts against the connecting pad.

[0043] The present application also provides a water softener, comprising:

[0044] A resin tank, the resin tank being used to store resin;

[0045] A control valve is the control valve described above, and the control valve is connected to the resin tank.

[0046] According to the control valve of the present application, water is transported into the control valve through the water inlet groove, and the water flows into the connecting groove through the water inlet groove, and flows into the water diversion cavity through the water through the water hole on the movable disc. In this way, it is possible to avoid reducing the resistance of the water inlet groove to the water, so that the flow of water is smoother. In addition, the water in the connecting groove exerts downward pressure (in the direction as shown in Figure 1) on the movable disc, so that the movable disc and the boss remain in contact, which can simplify the fixing and connection structure of the movable disc, simplify the internal structure of the control valve, and reduce the size of the control valve. In addition, it is also possible to increase the flow rate of water, increase the amount of water supplied to the user, and improve the user experience.

[0047] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0049] FIG1 is a cross-sectional view of a control valve provided in an embodiment of the present application;

[0050] FIG2 is a schematic diagram of the flow path of water in a control valve provided in an embodiment of the present application;

[0051] FIG3 is an exploded view of a control valve provided in an embodiment of the present application;

[0052] FIG4 is a top view of a valve seat provided in an embodiment of the present application;

[0053] FIG5 is a schematic diagram of a partial structure provided in an embodiment of the present application;

[0054] FIG6 is a perspective view provided in an embodiment of the present application;

[0055] FIG7 is a schematic structural diagram of a moving disk provided in an embodiment of the present application;

[0056] FIG8 is a structural diagram of a moving disk provided by an embodiment of the present application from another perspective;

[0057] FIG9 is a schematic structural diagram of a fixed plate provided in an embodiment of the present application;

[0058] FIG10 is a schematic structural diagram of a connection disk provided in an embodiment of the present application.

[0059] Reference numerals:

[0060] 100. Control valve;

[0061] 110, valve seat; 111, connecting groove; 112, boss; 113, water inlet groove; 114, water distribution chamber; 115, water inlet chamber; 116, mounting groove; 117, water inlet channel; 118, water outlet channel; 119, storage groove;

[0062] 120, moving plate; 121, water hole; 122, water barrier; 123, water inlet; 124, matching groove; 125, matching block; 126, transition groove;

[0063] 130, rotating shaft; 131, connecting plate; 132, limiting block; 133, positioning notch; 134, connecting column; 135, middle plate;

[0064] 140, fixed plate; 141, communicating hole; 142, gasket; 143, positioning portion;

[0065] 150, driving motor; 152, first gear; 153, second gear;

[0066] 160, gland; 161, pressing block; 162, fixing plate; 163, first sealing ring; 164, second sealing ring;

[0067] 170, housing; 180, control board; 181, Hall sensor;

[0068] First sector I; second sector II; third sector III; fourth sector IV; fifth sector V; sixth sector VI. DETAILED DESCRIPTION

[0069] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0070] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0071] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0072] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0074] A water softener can be used to filter and soften water to meet household water needs. A water softener uses resin to absorb calcium and magnesium ions in water to reduce the hardness of the water. After the resin has adsorbed calcium and magnesium ions to saturation, it needs to be cleaned with softening salt water to displace the calcium and magnesium ions adsorbed on the resin, so that the resin can restore its adsorption capacity for calcium and magnesium ions. The water path in the water softener is complex and needs to be controlled by a control valve. There are usually multiple water paths in the control valve, and water is transported to a designated location by controlling the opening and closing of different water paths. In related technologies, the internal structure of the control valve is not designed reasonably, resulting in unbalanced water pressure in the control valve, blocked water flow, small water flow rate of the water softener, untimely water supply, and poor user experience.

[0075] The control valve of the embodiment of the present application is described below with reference to Figures 1 to 10. It is understandable that a water softener can be used to filter and soften water to meet household water needs. The water softener absorbs calcium and magnesium ions in water through resin to reduce the hardness of the water. After the resin has adsorbed calcium and magnesium ions to saturation, it is necessary to clean the resin with softening salt water to displace the calcium and magnesium ions adsorbed on the resin, so that the resin can restore its adsorption capacity for calcium and magnesium ions. There are usually multiple water channels in the control valve, and the water is transported to the designated location by controlling the opening and closing of different water channels to achieve related functions.

[0076] According to an embodiment of the present application, a water softener includes a resin tank and a control valve 100. The resin tank is used to store resin, which can absorb metal ions such as calcium and magnesium in raw water to reduce water hardness. The control valve 100 is connected to the resin tank and is used to control the flow of raw water to a specific location to achieve a specific function. For example, the control valve 100 can control the flow of raw water from the resin tank inlet to filter the raw water and provide softened water; or the control valve 100 can control the flow of raw water from the resin tank outlet to rinse the resin, remove broken resin, and increase the spacing between resin particles. The water softener also includes a salt tank filled with brine. The salt tank is connected to the resin tank to provide the salt water to the resin tank. The brine is used to clean the resin, allowing the resin to continue to absorb metal ions in the raw water. The control valve 100 can be connected to the salt tank, and water can be added to the salt tank through the control valve 100 to dissolve the salt in the salt tank.

[0077] 1 and 6 , in some embodiments 100 includes a valve seat 110 and a movable disc 120 .

[0078] Specifically, the valve seat 110 is provided with a connecting groove 111 and at least one water channel for conveying water. For example, there may be multiple water channels, one of which is an inlet channel 117 connected to a water source to convey raw water into the control valve 100; one of which is connected to the inlet of the resin tank to convey water there; and one of which is connected to the brine tank to convey water there. The bottom wall of the connecting groove 111 is provided with a boss 112, the diameter of which is smaller than that of the connecting groove 111. A movable disc 120 is located within the connecting groove 111, attached to the boss 112, and having a smaller diameter than that of the connecting groove 111. The peripheral wall of the boss 112 , the peripheral wall of the movable plate 120 and the peripheral wall of the connecting groove 111 together form a water inlet groove 113 , which is connected to the connecting groove 111 . That is, the water inlet groove 113 extends along the circumference of the boss 112 .

[0079] The water inlet trough 113 is used to transport water into the control valve 100. The water inlet trough 113 can be connected to the water inlet channel 117, and water can enter the connecting channel 111 through the water inlet trough 113. In this way, the top of the water inlet trough 113 can be prevented from being blocked and causing resistance to the water, making the flow of water smoother. In addition, the water in the connecting channel 111 exerts downward pressure (in the direction shown in Figure 1) on the movable disc 120, so that the movable disc 120 remains in contact with the boss 112. This simplifies the fixing and connection structure of the movable disc 120, simplifies the internal structure of the control valve 100, and reduces the size of the control valve 100. As shown in Figures 2 and 4, in some embodiments, the multiple water channels include a water inlet channel 117, which is connected to a water source and is connected to the water inlet trough 113 to provide raw water to the control valve 100.

[0080] At least one water diversion chamber 114 is provided on the boss 112, connecting the waterway and the connecting groove 111. There may be multiple water diversion chambers 114, spaced apart along the circumference of the boss 112. A movable disc 120 is attached to the boss 112 and is provided with multiple water holes 121. The total area of ​​the multiple water holes 121 is less than the total cross-sectional area of ​​the water diversion chambers 114. The movable disc 120 is rotatable relative to the valve seat 110. By rotating the movable disc 120, the connecting groove 111 and the water diversion chamber 114 are controlled. Water in the connecting groove 111 can flow through the water holes 121 into the corresponding water diversion chamber 114, and then into the corresponding waterway. It is understood that the water in the water diversion chamber 114 exerts upward pressure (as shown in FIG. 1 ) on the movable disc 120, causing the movable disc 120 to tend to move away from the boss 112. Thus, on the one hand, the pressure exerted on the movable disc 120 by the water in the connecting groove 111 is balanced with the pressure exerted on the movable disc 120 by the water in the water diversion chamber 114, so that the water flows more smoothly; on the other hand, the movable disc 120 can be kept in contact with the boss 112, which can simplify the fixing and connection structure of the movable disc 120 and the valve seat 110, making the internal structure of the control valve 100 simpler, reducing the manufacturing difficulty and reducing the production cost.

[0081] As shown in Figure 2, a schematic diagram of the water flow path within control valve 100 is shown, with arrows indicating the direction of water flow. Water flows through inlet groove 113 into connecting groove 111 and then downward through water holes 121 in movable disc 120 into water diversion chamber 114. This increases the flow rate of water into water diversion chamber 114, thereby increasing the flow rate of water entering the corresponding waterway, increasing the amount of water supplied to the user, and improving the user experience.

[0082] In some embodiments 100, water is transported to the control valve 100 through the water inlet groove 113, and the water flows into the connecting groove 111 through the water inlet groove 113, and flows into the water diversion chamber 114 through the water hole 121 on the movable disc 120. In this way, it is possible to avoid reducing the resistance of the water inlet groove 113 to the water, so that the flow of water is smoother. In addition, the water in the connecting groove 111 applies downward pressure (in the direction shown in Figure 1) to the movable disc 120, so that the movable disc 120 remains in contact with the boss 112, which can simplify the fixing and connection structure of the movable disc 120, simplify the internal structure of the control valve 100, and reduce the size of the control valve 100. In addition, the water flow rate can be increased, the amount of water supplied to the user can be increased, and the user experience can be improved.

[0083] As shown in FIG4 , according to some embodiments of the present application, boss 112 further includes a water inlet chamber 115, which communicates with water inlet trough 113. A water hole may be provided on the peripheral wall of boss 112 to connect water inlet chamber 115 and water inlet trough 113. Part of the water in water inlet trough 113 flows into connecting trough 111, and the remaining part flows into water inlet chamber 115. The water in connecting trough 111 exerts downward pressure (as shown in FIG1 ) on movable disc 120, maintaining contact between movable disc 120 and boss 112. The water in connecting trough 111 exerts upward pressure (as shown in FIG1 ) on movable disc 120, offsetting some of the downward pressure and achieving equilibrium. Thus, when movable disc 120 rotates, the friction between movable disc 120 and boss 112 is reduced, reducing the driving force required to rotate movable disc 120 and facilitating adjustment of the rotation angle of movable disc 120. The water inlet chamber 115 is connected to the connecting groove 111 through the movable disc 120. When the movable disc 120 is rotated so that one of the water holes 121 is connected to the water inlet chamber 115, the water in the water inlet chamber 115 can flow to the connecting groove 111 through the water hole 121, and flow into the water diversion chamber 114 through the water hole 121, further increasing the speed of water supply to the water diversion chamber 114.

[0084] As shown in FIG5 , according to some embodiments of the present application, the boss 112 is divided into six sectors along the circumferential direction. Each sector has an inner and outer region along the radial direction. The inner region is closer to the center of the boss 112 than the outer region. Both the inner and outer regions are provided with sub-cavities, which are distributed along the circumference and radial direction of the boss 112. Some of the sub-cavities are connected to define a water diversion cavity 114 or a water inlet cavity 115, which can improve the utilization of the boss 112 and increase the flow rate of water flowing into the waterway.

[0085] For example, referring to Figures 4 and 5 , in some embodiments, the six sectors are, in order, the first sector I, the second sector II, the third sector III, the fourth sector IV, the fifth sector V, and the sixth sector VI. The inner and outer sub-cavities of the first sector I and the outer sub-cavities of the second sector II are connected to define a water inlet chamber 115. Water holes can be provided on the sidewalls of the bosses 112 corresponding to the first sector I or the second sector II to connect the water inlet chamber 115 with the water inlet trough 113. In the example of Figure 5 , the inner and outer sub-cavities of the fifth sector V are connected to define a tank water diversion chamber, which is connected to the inlet of the resin tank. The inner and outer sub-cavities of the third sector III are connected to define a bypass water diversion chamber. The valve seat 110 is provided with a water outlet channel 118, which connects the bypass water diversion chamber to the water outlet channel 118.

[0086] In this way, when the raw water needs to be softened, the rotating disk 120 is rotated so that the water hole 121 is connected to the water inlet tank water diversion chamber and the water inlet chamber 115, and the raw water flows from the water inlet channel 117 to the water inlet trough 113. Part of the water in the water inlet trough 113 flows to the connecting trough 111, and flows to the water inlet tank water diversion chamber through the water hole 121 connected to the water inlet tank water diversion chamber and then flows to the inlet of the resin tank; another part of the water in the water inlet trough 113 flows to the water inlet chamber 115, and flows into the connecting trough 111 through the water hole 121 connected to the water inlet chamber 115, and then flows into the water inlet tank water diversion chamber through the water hole 121 connected to the water inlet tank water diversion chamber, and finally flows to the inlet of the resin tank. When the user needs to use raw water, for example, when flushing the toilet, the rotating disk 120 is rotated so that the water hole 121 is connected to the bypass water diversion chamber and the water inlet chamber 115. Part of the water in the water inlet trough 113 flows to the bypass water diversion chamber through the connecting trough 111 and the water hole 121, and another part of the water in the water inlet trough 113 flows to the bypass water diversion chamber through the water inlet chamber 115 and the water hole 121, and finally flows out through the water outlet channel 118 to be provided to the user.

[0087] As shown in FIG7 , according to some embodiments of the present application, at least one water barrier rib 122 is provided on the side of the movable disc 120 facing the boss 112. The water barrier rib 122 is in contact with the surface of the boss 112 to prevent water from flowing between the water diversion chambers 114, thereby playing a sealing role. As shown in FIG7 , the water barrier rib 122 defines a transition groove 126. One end of the transition groove 126 is circular and located at the center of the movable disc 120, and the other end of the transition groove 126 is fan-shaped. As shown in FIG5 , a central cavity is provided at the center of the boss 112. The central cavity is connected to the sub-cavity of the inner area of ​​the sixth sector VI to define a transition water diversion chamber 114. The transition water diversion chamber 114 is connected to at least part of the transition groove 126. The transition groove 126 and the transition water diversion chamber 114 can transport water to other water diversion chambers 114 to reduce the number of water holes 121 and simplify the control process.

[0088] For example, in the example of FIG5 , the sub-cavities in the inner area of ​​the fourth sector IV define a water replenishment water diversion chamber, which is connected to the salt tank to replenish water into the salt tank. The sub-cavities in the outer area of ​​the fourth sector IV define a backwash water diversion chamber, which is connected to the outlet of the resin tank. The backwash water diversion chamber can be used to backwash the resin in the resin tank to flush out broken resin and increase the gaps between the resin tanks. By rotating the rotating disk 120, one of the water holes 121 is connected to the portion of the transition water diversion chamber 114 located in the sixth sector VI, and the other end of the transition groove 126 is connected to the water replenishment water diversion chamber. As a result, water in the connecting groove 111 can flow through the water hole 121 into the transition water diversion chamber 114, then through the transition groove 126 into the water replenishment water diversion chamber, and finally into the salt tank to replenish water. Through the cooperation of the transition groove 126 and the water hole 121, the water in the connecting groove 111 is transported to the corresponding water diversion cavity 114, and then transported to the corresponding position on the water softener through the corresponding water channel to achieve multiple functions.

[0089] As shown in Figures 1 and 3 , according to some embodiments of the present application, the control valve 100 further includes a rotating shaft 130 and a drive motor 150. The rotating shaft 130 is inserted into the connecting groove 111 and is rotatable relative to the valve seat 110. One end of the rotating shaft 130 is connected to the movable disk 120, and the other end of the rotating shaft 130 is connected to the drive motor 150 via a transmission assembly, thereby driving the movable disk 120 to rotate. The drive motor 150 can be connected to the valve seat 110. As shown in Figure 6 , the valve seat 110 has a mounting groove 116, and the drive motor 150 is received within the mounting groove 116. The transmission assembly can include a first gear 152 and a second gear 153. The first gear 152 is connected to the output shaft of the drive motor 150, and the second gear 153 is connected to the other end of the rotating shaft 130. The second gear 153 and the rotating shaft 130 can be connected by a connecting post 134, which can be a screw. The first gear 152 drives the second gear 153 to rotate, thereby driving the movable plate 120 of the rotating shaft 130 to rotate. In some embodiments, the transmission ratio of the first gear 152 to the second gear 153 is greater than 1. The first gear 152 and the second gear 153 can amplify the torque of the drive motor 150 to provide sufficient power to drive the movable plate 120 to rotate.

[0090] As shown in Figures 3 and 10 , according to some embodiments of the present application, a connecting disc 131 is provided at one end of a rotating shaft 130. Connecting disc 131 is connected to the rotating disc 120. The diameter of connecting disc 131 can be approximately equal to the diameter of rotating disc 120. Connecting disc 131 is connected to rotating disc 120. A stopper 132 is provided on the side of connecting disc 131 facing rotating disc 120. The rotating disc 120 has a mating groove 124 located on the side of the rotating disc 120 facing the connecting disc 131. The stopper 132 is embedded in the mating groove 124 to limit the position of the rotating disc 120, thereby allowing the rotating disc 120 to rotate. Both the stopper 132 and the mating groove 124 can be multiple, with each stopper 132 corresponding to each mating groove 124. The multiple stoppers 132 are spaced apart along the circumference of the connecting disc 131, and the multiple mating grooves 124 are spaced apart along the circumference of the rotating disc 120. In some embodiments, the limiting block 132 and the matching groove 124 may both be one, the limiting block 132 may extend along the radial direction of the connecting disk 131 , and the matching groove 124 may extend along the radial direction of the movable disk 120 .

[0091] As shown in Figures 8 and 10, according to some embodiments of the present application, the connecting disk 131 is provided with a positioning notch 133, and a mating block 125 is provided on the side of the movable disk 120 facing the connecting disk 131. The mating block 125 is embedded in the positioning notch 133 to position the movable disk 120 and the connecting disk 131. This prevents misalignment between the movable disk 120 and the rotating shaft 130 during assembly, thereby preventing misalignment between the water hole 121 and the water diversion chamber 114, which could lead to control errors. Both the positioning notch 133 and the mating block 125 can be one, so that the relative positions of the movable disk 120 and the connecting disk 131 in the circumferential direction are uniquely determined when they are connected. It should be noted that the number of positioning notches 133 and mating blocks 125 is not limited herein; as long as the relative positions of the movable disk 120 and the connecting disk 131 in the circumferential direction are uniquely determined when the movable disk 120 and the connecting disk 131 are connected, it is sufficient.

[0092] As shown in FIG3 , in some embodiments, the control valve 100 further includes a control board 180, which is stacked with the second gear 153. A position sensor is provided on the control board 180. The position sensor is used to detect the angular position of the second gear 153. The drive motor 150 can be controlled based on the detected angular position of the second gear 153 to rotate the second gear 153 to a specified position, thereby connecting the corresponding water diversion chamber 114 with the connecting groove 111. The position sensor can be a Hall sensor 181. The second gear 153 can be provided with a magnetic member. When the second gear 153 rotates, it can drive the magnetic member to rotate. The Hall sensor 181 is used to detect the position of the magnetic member. In this way, during assembly, the moving disk 120 and the rotating shaft 130 are circumferentially positioned by the positioning notch 133 and the matching block 125 to avoid misalignment of the moving disk 120 and the rotating shaft 130; the second gear 153 is circumferentially positioned by the Hall sensor 181 and the magnetic part to position the moving disk 120 and the water diversion chamber 114, saving the step of debugging the positions of the rotating shaft 130, the moving disk 120 and the water diversion chamber 114.

[0093] As shown in FIG3 , there may be multiple Hall sensors 181, spaced apart along the circumference of second gear 153. Each Hall sensor 181 coincides with the orthographic projection of the magnetic member's motion path on control board 180. Each Hall sensor 181 represents a function of the water softener. When the magnetic member moves to a position opposite one of the Hall sensors 181, the corresponding water diversion chamber 114 communicates with the communication groove 111, delivering water to the corresponding location to implement the corresponding function.

[0094] As shown in FIG8 , according to some embodiments of the present application, a water inlet 123 is provided on one side of the movable disk 120. The water inlet 123 extends radially along the movable disk 120 and penetrates the edge of the movable disk 120 in the radial direction of the movable disk 120 to communicate with the communication groove 111. The water inlet 123 is connected to the water through hole 121, and water in the communication groove 111 can flow into the water through hole 121 through the water inlet 123. There can be multiple water inlets 123, and the multiple water inlets 123 are evenly distributed along the circumference of the movable disk 120, so that water flows evenly from multiple directions to the water through hole 121.

[0095] 1 and 3 , according to some embodiments of the present application, the control valve 100 further includes a fixed disk 140. The diameter of the fixed disk 140 is smaller than the diameter of the connecting groove 111. The fixed disk 140 is sandwiched between the movable disk 120 and the boss 112. The fixed disk 140 is provided with at least one connecting hole 141. The number of connecting holes 141 is the same as the number of the water diversion chambers 114. The connecting holes 141 are connected to the water diversion chambers 114 in a one-to-one correspondence. The fixed disk can separate the movable disk 120 from the boss 112 to prevent the movable disk 120 from causing wear on the valve seat 110. The fixed disk 140 is also easily replaceable and has low subsequent maintenance costs. As shown in FIG9 , the shape and size of the connecting hole 141 are consistent with the cross-section of the water diversion chamber 114 to reduce the resistance of the fixed disk 140 to water, making the water flow in the control valve 100 smoother. A positioning portion 143 is provided on the peripheral wall of the fixed disk 140. The positioning portion 143 has a groove-like structure. A positioning clip that matches the positioning portion 143 is provided in the connecting groove 111. The positioning portion 143 is connected to the positioning clip to circumferentially limit the fixed disk 140. There can be multiple positioning portions 143, and the multiple positioning portions 143 are distributed at intervals along the circumference of the fixed disk 140. In the example of Figure 9, there are three positioning portions 143, and the three positioning portions 143 are distributed at intervals along the circumference of the fixed disk 140. The length of one positioning portion 143 in the circumferential direction of the fixed disk 140 is unequal to the length of the other two positioning portions 143. This facilitates the circumferential positioning of the fixed disk 140 when installing it, so that the connecting hole 141 is connected to the corresponding water diversion cavity 114.

[0096] As shown in Figures 1 and 3 , in some embodiments, the control valve 100 further includes a gasket 142, which is sandwiched between the fixed plate 140 and the boss 112. The gasket 142 can be a deformable member such as a rubber member, to seal the connection between the fixed plate 140 and the boss 112 and prevent water from leaking into the water diversion chamber 114. The gasket 142 is provided with multiple through-holes, the shape and distribution of which are consistent with the shape and distribution of the communication holes 141 on the fixed plate 140. As shown in Figures 4 and 6 , the boss 112 can be provided with a receiving groove 119, in which the gasket 142 is received.

[0097] As shown in Figures 1 and 3 , according to some embodiments of the present application, the control valve 100 further includes a gland 160. The gland 160 covers the communication groove 111 to seal the communication groove 111 and is connected to the valve seat 110. The rotating shaft 130 is disposed through the gland 160 and is rotatable relative to the gland 160. A second sealing ring 164 is sleeved on the rotating shaft 130 to seal the connection between the rotating shaft 130 and the gland 160. As shown in Figures 1 and 3 , in some embodiments, a pressure block 161 is provided on the side of the gland 160 facing the valve seat 110. The pressure block 161 is positioned within the communication groove 111. A first sealing ring 163 is sleeved on the outer circumference of the pressure block 161 to seal the connection between the pressure block 161 and the inner wall of the communication groove 111. The pressure block 161 abuts against the connecting plate 131 to limit the axial position of the rotating shaft 130. The rotating shaft 130 may be sleeved with an intermediate plate 135, which is sandwiched between the connecting disk 131 and the pressure block 161. The surface friction coefficient of the intermediate plate 135 is low, thereby reducing the friction force experienced by the connecting disk 131 during rotation. As shown in FIG3 , the pressure cover 160 is provided with a fixed plate 162, which is covered on the mounting groove 116 and abuts and is connected to one end of the drive motor 150. The fixed plate 162 is provided with a through hole, through which the output shaft of the drive motor 150 is passed to connect with the first gear 152. The control valve 100 may also include a cover 170, which is covered on the valve seat 110. A storage space is formed between the cover 170 and the valve seat 110, and the drive motor 150, the first gear 152, the second gear 153, the rotating shaft 130, and the control plate 180 are all located within the storage space.

[0098] Finally, it should be noted that the above embodiments are intended only to illustrate the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application and are intended to be encompassed by the claims of the present application.

Claims

1. A control valve comprising: A valve seat, wherein a connecting groove and at least one water channel are provided in the valve seat, a boss is provided on the bottom wall of the connecting groove, the diameter of the boss is smaller than the diameter of the connecting groove, and at least one water diversion cavity is provided on the boss, the water diversion cavity connects the water channel and the connecting groove; A movable disc is attached to the boss, and the diameter of the movable disc is smaller than the diameter of the connecting groove. The peripheral wall of the boss, the peripheral wall of the movable disc and the peripheral wall of the connecting groove jointly constitute a water inlet groove. The movable disc is provided with a plurality of water holes, and the total area of ​​the plurality of water holes is smaller than the sum of the cross-sectional areas of the water diversion chamber. The movable disc is rotatable relative to the valve seat to control the opening and closing of the connecting groove and the water diversion chamber.

2. The control valve according to claim 1, wherein: The boss is further provided with a water inlet cavity, which is communicated with the water inlet trough.

3. The control valve according to claim 2, wherein: The boss is divided into six sector-shaped areas along the circumferential direction. Each sector-shaped area has an inner area and an outer area along the radial direction. Sub-cavities are provided in both the inner area and the outer area.

4. The control valve according to claim 3, wherein: The six sector-shaped areas are the first sector, the second sector, the third sector, the fourth sector, the fifth sector and the sixth sector in sequence. The sub-cavity in the inner area of ​​the first sector and the sub-cavity in the outer area and the sub-cavity in the outer area of ​​the second sector are connected to define the water inlet cavity.

5. The control valve according to any one of claims 1 to 4, wherein: At least one water barrier is provided on a side of the movable disc facing the boss.

6. The control valve according to any one of claims 1 to 5, wherein: A water inlet is provided on one side of the movable disc. The water inlet penetrates the edge of the movable disc in the radial direction of the movable disc, and the water inlet is communicated with the water through hole.

7. The control valve according to any one of claims 1 to 6 further includes a fixed plate, the diameter of which is smaller than the diameter of the connecting groove, the fixed plate is clamped between the movable plate and the boss, and at least one connecting hole is provided on the fixed plate, and the connecting hole is connected to the water diversion chamber in a one-to-one correspondence. 8 . The control valve according to claim 7 , further comprising a gasket interposed between the fixed plate and the boss.

9. The control valve according to any one of claims 1 to 8, further comprising a rotating shaft and a driving motor, wherein one end of the rotating shaft is connected to the moving disk, and the other end of the rotating shaft is connected to the driving motor via a transmission assembly.

10. The control valve according to claim 9, wherein: A connecting disk is provided at one end of the rotating shaft, and the connecting disk is connected to the movable disk. A limiting block is provided on the side of the connecting disk facing the movable disk. A matching groove is provided on the movable disk, and the limiting block is embedded in the matching groove to limit the movable disk.

11. The control valve according to claim 10, wherein: The connecting disk is provided with a positioning notch, and a matching block is provided on a side of the movable disk facing the connecting disk. The matching block is embedded in the positioning notch to position the movable disk and the connecting disk.

12. The control valve according to claim 10 or 11, further comprising a gland, wherein the gland is disposed on the communicating groove and connected to the valve seat, and the rotating shaft passes through the gland.

13. The control valve according to claim 12, wherein: A pressing block is provided on one side of the pressure cover facing the valve seat, and the pressing block abuts against the connecting disk.

14. A water softener, comprising: A resin tank, the resin tank being used to store resin; The control valve is a control valve according to any one of claims 1 to 13, A control valve is in communication with the resin tank.

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