water softener

Abstract

The application discloses a water softener, comprising: a water softener valve, comprising a valve body with a valve cavity, the valve body is provided with a soft tank interface, the soft tank interface is provided with a side wall channel and a center channel which are both communicated with the valve cavity; a soft water tank which is installed outside the soft tank interface; a first water distributor which is installed inside the soft tank interface; a center pipe, the first end of which is communicated with the center channel, the second end of which is provided through the first water distributor to extend into the soft water tank; and a second water distributor which is provided at the second end of the center pipe; the soft water tank, the first water distributor, the center pipe and the second water distributor enclose a soft water cavity, the soft water cavity is filled with soft water medium, and the side wall channel is communicated with the soft water cavity through the first water distributor. The technical scheme of the application can improve the assembly efficiency of the water softener, and make the installation sealing of the first water distributor relatively reliable, so as to reduce the risk of escape of softening medium or intrusion of hard water.

Description

[0001] This invention claims priority to Chinese patent application No. 202510900639.3, filed on June 30, 2025, entitled "Water Softener", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of water softening equipment technology, and in particular to a water softener. Background Technology

[0003] Water softeners can soften water, thereby improving the user's water quality experience, saving detergent, and conserving water. However, water softeners suffer from low assembly efficiency, and misalignment of the upper water distributor can lead to installation and sealing problems, resulting in the risk of softening medium leakage or hard water intrusion. Summary of the Invention

[0004] The main objective of this invention is to provide a water softener that addresses at least one of the technical problems mentioned in the background section.

[0005] To achieve the above objectives, the water softener proposed in this invention includes: A soft water valve includes a valve body with a valve cavity, the valve body having a soft water tank interface, and the soft water tank interface having a side wall channel and a central channel that are both connected to the valve cavity; A soft water tank is installed on the outside of the soft water tank interface; The first water distributor is installed inside the soft tank interface; A central tube, with its first end connected to the central channel and its second end passing through the first water distributor to extend into the soft water tank; and The second water distributor is located at the second end of the central pipe; The soft water tank, the first water distributor, the central pipe, and the second water distributor together form a soft water cavity, which is filled with soft water medium. The side wall channel is connected to the soft water cavity via the first water distributor.

[0006] In one embodiment, the first water distributor is snapped onto the inside of the soft can interface.

[0007] In one embodiment, the water softener further includes a water distribution mounting base, which is fixed to the inside of the water softener tank interface, and the first water distributor is mounted on the water distribution mounting base.

[0008] In one embodiment, the water distribution mounting base is detachably connected to the soft can interface; and / or, the first water distributor is detachably connected to the water distribution mounting base.

[0009] In one embodiment, the water distribution mounting base includes an inner ring portion, an outer ring portion, and a plurality of connecting arms connecting the inner ring portion and the outer ring portion. The central tube is adapted to pass through the inner ring portion, the outer ring portion is attached to the inner wall surface of the soft can interface, and the first water distributor is installed on the outer ring portion.

[0010] In one embodiment, at least a portion of the connecting arm within the soft can interface is provided with a plurality of screw holes, and the corresponding connecting arm is provided with mounting holes corresponding to the screw holes. Screws pass through the mounting holes and connect with the screw holes to fix the water distribution mounting seat to the valve body.

[0011] In one embodiment, one of the outer ring portion and the first water distributor is provided with a buckle, and the other is provided with a rotating groove. The rotating groove includes an inlet groove section and a limiting groove section that are bent and connected. The buckle is inserted into the limiting groove section through the inlet groove section.

[0012] In one embodiment, a central sealing ring is provided between the central channel and the central tube, and the inner ring portion restricts the central sealing ring from disengaging from the central channel along the axial direction of the central tube.

[0013] In one embodiment, the water softener further includes a transition ring disposed within the central channel, and the first end of the central pipe is installed within the transition ring.

[0014] In one embodiment, the adapter ring is detachably connected to the central channel; the central tube includes a first central tube and a second central tube, the diameter of the first central tube being smaller than the diameter of the second central tube; the soft water tank includes a first soft water tank and a second soft water tank, the diameter of the first soft water tank being smaller than the diameter of the second soft water tank. When the first soft can is installed in the soft can interface, the adapter ring is installed in the central channel, and the first central tube is installed in the adapter ring; When the second soft can is installed in the soft can interface, the second central tube is directly installed in the central channel.

[0015] In one embodiment, the water softener further includes a water distribution mounting base, which is fixed to the inside of the soft water tank interface, and the first water distributor is mounted on the water distribution mounting base; The water distribution mounting base restricts the adapter ring from disengaging from the central channel along the axial direction of the central pipe.

[0016] In one embodiment, an annular groove is provided at the edge of the channel opening near the soft water tank in the central channel, and an installation ring protrusion is provided on the outer side of the adapter ring. The installation ring protrusion is inserted into the annular groove, and the water distribution mounting seat abuts and limits the installation ring protrusion in the annular groove.

[0017] In one embodiment, the free end face of the mounting annular protrusion is provided with a first sealing groove, and a transition sealing ring is provided between the first sealing groove and the annular recess.

[0018] In one embodiment, the inner side of the adapter ring is provided with a second sealing groove, and a central sealing ring is provided between the second sealing groove and the central tube.

[0019] In one embodiment, the inner side of the adapter ring near the soft water tank has a guide slope.

[0020] In one embodiment, when the adapter ring is provided with the second sealing groove, the second sealing groove and the mounting ring protrude in the axial direction of the adapter ring and are misaligned.

[0021] In one embodiment, both the first water distributor and the second water distributor are truncated cone-shaped, and the cross-sections of the first water distributor and the second water distributor gradually increase in the direction of mutual separation.

[0022] In one embodiment, the soft water tank is detachably connected to the soft water tank interface.

[0023] In one embodiment, the soft water tank is threadedly connected to the soft water tank interface; and / or, a soft water tank sealing ring is provided between the soft water tank and the soft water tank interface.

[0024] In one embodiment, the valve body is further provided with an inlet channel, an outlet channel, a sewage discharge channel, and a brine injection channel; The soft water valve further includes a grid assembly disposed in the valve cavity and a piston disposed in the grid assembly. The grid assembly divides the valve cavity into multiple water passage chambers along its axial direction. The multiple water passage chambers include an inlet chamber communicating with the inlet channel, a side wall chamber communicating with the side wall channel, a sewage discharge chamber communicating with the sewage discharge channel, a central chamber communicating with the central channel, an outlet chamber communicating with the outlet channel, and a water injection and brine suction chamber communicating with the brine injection channel. The inlet chamber, the side wall chamber, the sewage discharge chamber, the central chamber, the outlet chamber, and the water injection and brine suction chamber are arranged sequentially along the axial direction of the valve cavity. The soft water valve has multiple water circuit modes, and the piston moves axially along the valve cavity to switch between the multiple water circuit modes.

[0025] In one embodiment, the grille assembly includes a plurality of grille units sequentially spliced ​​along the axial direction of the valve cavity, and an outer sealing ring groove for installing an outer sealing ring is spliced ​​between two adjacent grille units; the grille assembly has a pre-installation state, in which a widened gap can be formed between two adjacent grille units, and the width of the widened gap is smaller than the cross-sectional diameter of the outer sealing ring; The soft water valve also includes a drive mounting seat that covers the valve cavity opening; when the valve cavity opening is in an open state, the bar grid assembly is installed in the valve cavity in the pre-installed state, and the widening gap widens the outer sealing ring groove to provide a larger deformation space for the outer sealing ring; when the drive mounting seat covers the valve cavity opening, the drive mounting seat abuts against the bar grid assembly to eliminate the widening gap, so that the outer sealing ring abuts against the cavity wall of the valve cavity.

[0026] In one embodiment, the piston includes a first piston and a second piston, both of which are provided with a first water-passing ring groove. The axial position of the first water-passing ring groove on the first piston is different from the axial position on the second piston. The first piston and the second piston are selectively installed into the grid assembly. The various water circuit modes include a regeneration water circuit mode. When the first piston is installed inside the bar screen assembly, in the regeneration water circuit mode, the first water-passing annular groove connects the central cavity and the sewage discharge cavity to achieve co-current regeneration. When the second piston is installed inside the bar screen assembly, in the regeneration water circuit mode, the first water-passing annular groove connects the side wall cavity and the sewage discharge cavity to achieve counter-current regeneration.

[0027] In one embodiment, the valve body includes a valve body and a valve base that are assembled separately. The soft can interface is located on the valve base. The valve body has a first dividing rib on one side near the valve base that cooperates with the grille assembly to separate multiple water passage chambers. The valve base has a second dividing rib corresponding to each of the first dividing ribs. The first dividing rib has a first rib surface and a second rib surface that are radially opposite each other in the valve chamber. The grille assembly is sealed and abuts against the first rib surface, and the second dividing rib is fixedly connected to the second rib surface.

[0028] The technical solution of this invention separates the first water distributor and the soft water tank on the inner and outer sides of the soft water tank interface. This allows the soft water valve, central pipe, first water distributor, and second water distributor to be assembled into a single module before the soft water tank is installed. This modular installation improves product assembly efficiency. Specifically, compared to related technologies that use bolts to install the soft water valve, upper water distributor, and soft water tank together, this method avoids the difficulty of simultaneously aligning the three components, resulting in higher assembly efficiency, a lower probability of alignment deviations, and relatively reliable sealing of the first water distributor, reducing the risk of softening medium leakage or hard water intrusion. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of an embodiment of the water softener of the present invention; Figure 2 for Figure 1 Explosion diagram of a water softener; Figure 3 for Figure 2 A magnified view of a section at point E in the middle; Figure 4 for Figure 1 A cross-sectional view of a medium-sized water softener; Figure 5 for Figure 4 A magnified view of a section at point F in the middle; Figure 6 for Figure 1 A schematic diagram of the structure of the soft water valve of a medium-sized water softener at one angle; Figure 7 for Figure 6 Cross-sectional view of the medium-soft water valve along AA; Figure 8 for Figure 1 A schematic diagram of the soft water valve of a medium-sized water softener from another angle; Figure 9 for Figure 8 Cross-sectional view of the medium-soft water valve along BB; Figure 10 for Figure 1 A simplified structural diagram of a water softener in water production mode; Figure 11 for Figure 1 A simplified structural diagram of a water softener in water injection mode; Figure 12 for Figure 1 A simplified structural diagram of a medium-soft water purifier in the forward washing mode; Figure 13 for Figure 1 A simplified structural diagram of a water softener in backwash mode; Figure 14 for Figure 1 A simplified structural diagram of a water softener in co-current regeneration mode; Figure 15 This is a simplified structural diagram of another embodiment of the water softener of the present invention in countercurrent regeneration mode; Figure 16 for Figure 1 A schematic diagram of the valve body of the soft water valve in a water softener at one angle; Figure 17 for Figure 16 A cross-sectional view of the middle valve body along CC; Figure 18 for Figure 1 A schematic diagram of the grid assembly of the soft water valve in a medium-sized water softener; Figure 19 for Figure 18 A magnified view of a section at point B in the middle; Figure 20 This is a cross-sectional structural diagram of another embodiment of the water softener of the present invention; wherein the water softener tank and its internal components are concealed; Figure 21 for Figure 20 A magnified view of a section at point G in the middle; Figure 22 for Figure 20 Explosion diagram of a water softener; Figure 23 for Figure 20 A schematic diagram of the adapter ring of the water softener; Figure 24 for Figure 23 A schematic diagram of the cross-sectional structure of the transfer ring.

[0031] Explanation of icon numbers: 1. Valve body; 101. Inlet channel; 102. Side wall channel; 103. Drain channel; 104. Central channel; 104a. Annular settling tank; 105. Outlet channel; 106. Water injection and brine suction channel; 11. Valve cavity; 111. Water passage cavity; 112. Inlet cavity; 113. Side wall cavity; 114. Drain cavity; 115. Central cavity; 116. Outlet cavity; 117. Water injection and brine suction cavity; 14. Bypass channel; 15. Valve body; 151. First partition rib; 1511. First rib surface; 1512. Second rib surface; 16. Valve base; 161. Soft tank interface; 162. Second partition rib; 163. Screw hole post; 2. Grille assembly; 21. Grille unit; 211. Outer sealing ring groove; 212. Widened gap; 22. Outer sealing ring; 24. Support retaining ring; 3. Piston 31. First piston body; 311. Water passage; 312. First water passage ring groove; 32. Second piston body; 321. Second water passage ring groove; 33. First piston; 34. Second piston; 4. Ejector; 51. Drive mounting base; 61. First water distributor; 611. Rotary slot; 611a. Inlet groove section; 611b. Limiting groove section; 62. Second water distributor; 63. Central pipe; 64. Water distribution mounting base; 641. Inner ring; 642. Outer ring; 643. Connecting arm; 644. Mounting hole; 645. Protruding buckle; 65. Central sealing ring; 66. Soft water tank sealing ring; 67. Adapter ring; 671. Mounting ring protrusion; 672. First sealing groove; 673. Second sealing groove; 674. Guide slope; 68. Adapter sealing ring; 200. Soft water tank; 300. Salt tank.

[0032] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0036] This invention proposes a water softener.

[0037] Reference Figures 1 to 5 In one embodiment of the present invention, the water softener includes: A soft water valve includes a valve body 1 having a valve cavity 11. The valve body 1 is provided with a soft water tank interface 161. The soft water tank interface 161 is provided with a side wall channel 102 and a central channel 104, both of which are connected to the valve cavity 11. A soft water tank 200 is installed on the outside of the soft water tank interface 161; The first water distributor 61 is installed inside the soft tank interface 161; The central tube 63 has a first end connected to the central channel 104 and a second end passing through the first water distributor 61 to extend into the soft water tank 200; and The second water distributor 62 is located at the second end of the central pipe 63; The soft water tank 200, the first water distributor 61, the central pipe 63 and the second water distributor 62 form a soft water cavity, which is filled with soft water medium. The side wall channel 102 is connected to the soft water cavity through the first water distributor 61.

[0038] The technical solution of this invention separates the first water distributor 61 and the soft water tank 200 on the inner and outer sides of the soft water tank interface 161, allowing the soft water valve, central pipe 63, first water distributor 61, and second water distributor 62 to be assembled into a single module before installing the module with the soft water tank 200. This modular installation improves product assembly efficiency. Specifically, compared to related technologies that use bolts to install the soft water valve, upper water distributor, and soft water tank 200 together, this method avoids the difficulty of simultaneously aligning the three components, resulting in higher assembly efficiency and a lower probability of alignment deviation. The installation sealing of the first water distributor 61 is relatively reliable, reducing the risk of softening medium leakage or hard water intrusion.

[0039] In one embodiment, the first water distributor 61 can be directly installed inside the soft can interface 161. That is, a structure for connecting the first water distributor 61 can be directly provided inside the soft can interface 161, such as a snap-fit ​​structure or a threaded connection structure, so that the first water distributor 61 can be connected to the inside of the hose structure by snap-fit ​​or threaded connection, which can reduce the number of installation parts and installation steps.

[0040] In another embodiment, the first water distributor 61 can also be indirectly installed inside the soft water tank interface 161. In this case, a water distribution mounting base 64 is usually added between the first water distributor 61 and the soft water tank interface 161. That is, the water softener also includes a water distribution mounting base 64, which is fixed inside the soft water tank interface 161, and the first water distributor 61 is installed on the water distribution mounting base 64. It is understood that forming an installation structure for the first water distributor 61 on the water distribution mounting base 64 is more convenient, and it also helps to simplify the structure of the soft water tank interface 161, that is, it helps to simplify the structure of the valve body 1.

[0041] Optionally, the water distribution mounting base 64 is detachably connected to the soft can interface 161, so that if the water distribution mounting base 64 is damaged, only the water distribution mounting base 64 needs to be replaced, reducing the probability of product scrap. Without loss of generality, the water distribution mounting base 64 and the soft can interface 161 may be detachably connected by at least one of the following methods, including but not limited to screw fastening structures and snap-fit ​​structures.

[0042] Optionally, the first water distributor 61 is detachably connected to the water distribution mounting base 64, so that if the first water distributor 61 is damaged, only the first water distributor 61 needs to be replaced, reducing the probability of product scrap. It also facilitates cleaning of the first water distributor 61 by removing it. Without loss of generality, the first water distributor 61 and the water distribution mounting base 64 may be detachably connected using at least one of the following methods, including but not limited to screw fastening structures and snap-fit ​​structures.

[0043] In this embodiment, the water distribution mounting base 64 and the soft can interface 161, as well as the first water distributor 61 and the water distribution mounting base 64, are detachably connected. In other embodiments, only the water distribution mounting base 64 and the soft can interface 161 may be detachably connected, or only the first water distributor 61 and the water distribution mounting base 64 may be detachably connected.

[0044] In one embodiment, the water distribution mounting base 64 includes an inner ring portion 641, an outer ring portion 642, and a plurality of connecting arms 643 connecting the inner ring portion 641 and the outer ring portion 642. The central tube 63 is adapted to pass through the inner ring portion 641, and the outer ring portion 642 is attached to the inner wall surface of the soft can interface 161. The first water distributor 61 is installed on the outer ring portion 642. In this embodiment, "a plurality of" refers to one or more. When there are multiple connecting arms 643, the multiple connecting arms 643 are spaced apart in the circumferential direction, and water can flow between adjacent mounting arms. The water distribution mounting base 64 of this embodiment has a simple and stable structure, and the fit between the outer ring portion 642 and the inner wall surface of the soft can interface 161 can reduce the risk of softening medium escaping or hard water entering.

[0045] Optionally, at least a portion of the connecting arm 643 within the soft can interface 161 is provided with a plurality of screw-hole posts 163, and the corresponding connecting arm 643 is provided with mounting holes 644 corresponding to the screw-hole posts 163. Screws pass through the mounting holes 644 and connect with the screw-hole posts 163 to fix the water distribution mounting seat 64 to the valve body. On the one hand, the screw-locking connection method is stable and reliable; on the other hand, the extension direction of the screw-hole posts 163 is the same as the axial direction of the soft can interface 161. Thus, when the valve body 1 is manufactured by injection molding or casting, the screw-hole posts 163 can be easily formed by a simple mold opening action without the need for a complex core-pulling action. This simplifies the manufacturing process of the valve body 1, reduces mold manufacturing costs, and lowers product development costs.

[0046] Optionally, one of the outer ring portion 642 and the first water distributor 61 is provided with a protruding buckle 645, and the other is provided with a rotating groove 611. The rotating groove 611 includes an inlet groove section 611a and a limiting groove section 611b that are bent and connected. The protruding buckle 645 is engaged with the limiting groove section 611b via the inlet groove section 611a. It can be understood that the inlet groove section 611a extends axially along the soft can interface 161, and the limiting groove section 611b extends circumferentially along the soft can interface 161. Without loss of generality, in this embodiment, the protruding buckle 645 is provided on the inner side of the outer ring portion 642, and the rotating groove 611 is provided on the outer side of the first water distributor 61. In this embodiment, the first water distributor 61 and the water distribution mounting base 64 are connected by a rotational snap-fit. On one hand, the rotational snap-fit ​​groove 611 has an inlet groove 611a, which facilitates the snap-fit ​​between the two, reducing the difficulty of assembly and improving assembly efficiency. On the other hand, to disengage them, they need to rotate relative to each other for a certain distance. Thus, when the first water distributor 61 is not subjected to a circumferential driving force, the snap-fit ​​between them can be effectively maintained, thereby reducing the probability of the first water distributor 61 gyrating relative to the water distribution mounting base 64. Furthermore, a limiting protrusion can be provided in the limiting groove 611b to restrict the protruding buckle 645 from disengaging from the limiting groove 611b to the inlet groove 611a, thereby further improving the assembly reliability of the first water distributor 61.

[0047] In one embodiment, a central sealing ring 65 is provided between the central channel 104 and the central tube 63. The inner ring portion 641 restricts the central sealing ring 65 from disengaging from the central channel 104 along the axial direction of the central tube 63, thereby ensuring the sealing performance of the connection between the central tube 63 and the central channel 104. Optionally, the edge of the channel opening of the central channel 104 for inserting the central tube 63 is provided with an annular groove for mounting the central sealing ring 65. It can be understood that the annular groove is recessed relative to the inner wall surface of the central channel 104, and one end face of the inner ring portion 641 abuts against the channel opening of the central channel 104 and seals the opening of the annular groove, thereby restricting the central sealing ring 65 from disengaging from the annular groove and restricting the deformation of the central sealing ring 65 in the axial direction of the central tube 63, thereby ensuring good sealing performance between the central sealing ring 65 and the central tube 63.

[0048] Reference Figures 20 to 24In one embodiment, the water softener further includes a transition ring 67 disposed within the central channel 104, with the first end of the central tube 63 installed within the transition ring 67. In this embodiment, the transition ring 67 protrudes from the central channel 104, meaning that adding the transition ring 67 reduces the installation diameter of the central tube 63, allowing for the installation of a central tube 63 with a smaller outer diameter. It is understood that using a smaller central tube 63 reduces pressure loss and increases flow rate, which is beneficial for achieving high-flow-rate softened water. In this embodiment, the transition ring 67 and the central channel 104 can be non-removable, connected by, for example but not limited to, welding or bonding. It is understood that welding or bonding not only achieves the connection between the transition ring 67 and the central channel 104 but also simultaneously achieves a seal between them. Alternatively, the transition ring 67 and the central channel 104 can be detachable, connected by, for example but not limited to, snap-fit ​​or screw fastening, to facilitate the replacement of the transition ring 67 and / or the central tube 63.

[0049] In one embodiment, the adapter ring 67 is detachably connected to the central channel 104; the central tube 63 includes a first central tube and a second central tube, the diameter of the first central tube being smaller than the diameter of the second central tube; the soft water tank 200 includes a first soft tank and a second soft tank, the diameter of the first soft tank being smaller than the diameter of the second soft tank; when the first soft tank is installed in the soft tank interface 161, the adapter ring 67 is installed in the central channel 104, and the first central tube is installed in the adapter ring 67; when the second soft tank is installed in the soft tank interface 161, the second central tube is directly installed in the central channel 104. This allows valve bodies 1 with different diameter central tubes 63 to be manufactured using the same mold (sharing the same valve body 1; when assembling a larger diameter central tube 63, the adapter ring 67 is not installed; when assembling a smaller diameter central tube 63, the adapter ring 67 is installed), reducing the mold opening cost of the valve body 1, thereby reducing product cost and improving product competitiveness. Without loss of generality, the connection ports of water softener tanks 200 with diameters ranging from 5 inches to 16 inches are all 2.5 inches. That is, water softener tanks 200 with different diameters can have the same size connection port, so that water softener tanks 200 with different diameters can be adapted to connect to the same water softener interface 161 of the valve body 1. In order to avoid excessive pressure loss, water softener tanks 200 with diameters ranging from 5 inches to 10 inches need to be equipped with a center pipe with a smaller diameter, while water softener tanks 200 with diameters greater than 10 inches to 16 inches are equipped with a center pipe with a larger diameter. Thus, when installing water softener tanks 200 with diameters ranging from 5 inches to 10 inches, the adapter ring 67 needs to be added in the center channel 104 so that the center pipe 63 with a smaller diameter can be adapted for installation. However, when installing water softener tanks 200 with diameters greater than 10 inches to 16 inches, the adapter ring 67 is not required. This embodiment emphasizes that the adapter ring 67 and the central channel 104 are detachable, enabling the adapter ring 67 to be optionally installed.

[0050] In one embodiment, the water softener further includes a water distribution mounting base 64, which is fixed to the inner side of the soft water tank interface 161. The first water distributor 61 is mounted on the water distribution mounting base 64. The water distribution mounting base 64 restricts the adapter ring 67 from disengaging from the central channel 104 along the axial direction of the central tube 63. In this embodiment, the water distribution mounting base 64 not only provides a mounting attachment for the first water distributor 61, but also serves to restrict the disengagement of the adapter ring 67, thus eliminating the need for additional structural components to restrict the disengagement of the adapter ring 67 and simplifying the product structure.

[0051] Optionally, the central channel 104 has an annular recess 104a near the channel opening of the soft water tank 200. The outer side of the adapter ring 67 has a protruding mounting ring protrusion 671. The mounting ring protrusion 671 is inserted into the annular recess 104a, and the water distribution mounting seat 64 abuts and limits the mounting ring protrusion 67 in the annular recess 104a. It can be understood that the annular recess 104a is recessed relative to the inner wall surface of the central channel 104. One end face of the inner ring portion 641 of the water distribution mounting seat 64 abuts against the channel opening of the central channel 104 and seals the opening of the annular recess 104a, thereby restricting the mounting ring protrusion 671 from coming out of the annular recess 104a, so as to ensure the stability of the installation position of the adapter ring 67.

[0052] Optionally, the free end face of the mounting ring protrusion 671 is provided with a first sealing groove 672, and a transition sealing ring 68 is provided between the first sealing groove 672 and the annular recess 104a to ensure the sealing between the transition ring 67 and the central channel 104 and to avoid water leakage gaps between the two.

[0053] Optionally, the inner surface of the adapter ring 67 is provided with a second sealing groove 673, and a central sealing ring 65 is provided between the second sealing groove 673 and the central tube 63 to ensure the sealing between the adapter ring 67 and the central tube 63 and prevent water leakage gaps between them. Further optionally, the second sealing groove 673 and the mounting ring protrusion 671 are offset in the axial direction of the adapter ring 67 to ensure the structural strength of the adapter ring 67.

[0054] Optionally, the inner side of the adapter ring 67 near the soft water tank 200 is provided with a guide slope 674 to facilitate the insertion of the central tube 63 into the adapter ring 67, which helps to improve the assembly efficiency of the product.

[0055] Reference Figure 4 In one embodiment, optionally, the first water distributor 61 is truncated cone-shaped, and the cross-section of the first water distributor 61 gradually increases in the direction away from the second water distributor 62. In this way, the water-passing surface of the first water distributor 61 is inclined, thereby increasing the area of ​​the water-passing surface of the first water distributor 61, thereby better guiding the water flow to spread evenly along the cone surface, avoiding local water flow concentration or dead corners, and helping to increase the throughput of the product.

[0056] Optionally, the second water distributor 62 is truncated cone-shaped, and the cross-section of the second water distributor 62 gradually increases in the direction away from the first water distributor 61. In this way, the water-passing surface of the second water distributor 62 is inclined, thereby increasing the area of ​​the water-passing surface of the second water distributor 62, thereby better guiding the water flow to spread evenly along the cone surface, avoiding local water flow concentration or dead corners, and helping to increase the throughput of the product.

[0057] In this embodiment, both the first water distributor 61 and the second water distributor 62 are truncated conical in shape; however, this design is not limited to this. In other embodiments, only the first water distributor 61 or only the second water distributor 62 may be truncated conical in shape.

[0058] In one embodiment, the soft water tank 200 is detachably connected to the soft water tank interface 161 to facilitate the replacement or replenishment of the softening medium in the soft water tank 200, or to replace only the damaged part when either the soft water tank 200 or the soft water valve is damaged, thereby reducing the probability of product scrap.

[0059] Optionally, the soft water tank 200 is threadedly connected to the soft water tank interface 161. This threaded connection not only facilitates assembly and disassembly and provides a stable and reliable connection, but also offers good sealing performance. However, this design is not limited to this. In other embodiments, the soft water tank 200 and the soft water tank interface 161 can also be connected via a snap-fit ​​structure, such as, but not limited to, a rotational snap-fit ​​connection.

[0060] Optionally, a soft water tank 200 and a soft water tank interface 161 are provided with a soft water tank sealing ring 66 to ensure the sealing of the connection between the soft water tank 200 and the soft water tank interface 161. Optionally, an annular groove is provided on the inner side of the opening of the soft water tank 200 for the installation of the soft water tank sealing ring 66. It can be understood that the annular groove is recessed relative to the inner wall surface of the soft water tank 200. The outer surface of the valve body 1 and the annular groove together restrict the dislodgement of the soft water tank sealing ring 66 and jointly compress the soft water tank sealing ring 66 to ensure good sealing between the soft water tank 200 and the soft water tank interface 161.

[0061] In one embodiment, reference is made to Figures 6 to 9The valve body 1 is further provided with an inlet channel 101, an outlet channel 105, a sewage discharge channel 103, and a brine injection channel 106. The soft water valve also includes a grid assembly 2 disposed in the valve cavity 11 and a piston 3 disposed in the grid assembly 2. The grid assembly 2 divides the valve cavity 11 into a plurality of water passage chambers 111 along its axial direction. The plurality of water passage chambers 111 include an inlet chamber 112 communicating with the inlet channel 101, a side wall chamber 113 communicating with the side wall channel 102, a sewage discharge chamber 114 communicating with the sewage discharge channel 103, a central chamber 115 communicating with the central channel 105, an outlet chamber 116 communicating with the outlet channel 105, and a brine injection and brine absorption chamber 117 communicating with the brine injection channel 106. The inlet chamber 112, side wall chamber 113, drain chamber 114, center chamber 115, outlet chamber 116, and brine injection chamber 117 are sequentially arranged along the axial direction of the valve chamber 11. The soft water valve has multiple water circuit modes. The piston 3 moves along the axial direction of the valve chamber 11 to switch the soft water valve between multiple water circuit modes. Optionally, the bar assembly 2 includes multiple spaced support rings 24. The outer periphery of the multiple support rings 24 abuts against the inner circumferential surface of the valve chamber 11, and the inner periphery of the support rings 24 abuts against the piston 3. A water passage chamber 111 is formed between two adjacent support rings 24.

[0062] This type of piston-type water softener valve has a larger flow rate and higher softening efficiency, making it easier to achieve the design goals of small size, large flow rate, high water production, and high salinity. It also has a long service life. The piston 3 is inserted into the inner periphery of the grille assembly 2, and its outer periphery is in sealed contact with the inner periphery of the grille assembly 2. This means the outer periphery of the piston 3 is also in sealed contact with the inner periphery of the support ring 24, thus cutting off the connection between two adjacent water passage chambers 111. The piston 3 typically has multiple water passage positions. When the piston 3 moves to a certain position, at least one of the multiple support rings 24 is positioned opposite the water passage position of the piston 3, creating a water passage gap between the inner periphery of the support ring 24 and the water passage position of the piston 3. This allows for the connection between the adjacent water passage chambers 111 on both sides of the support ring 24. The movement of the piston 3 enables communication between different water passage chambers 111, thereby controlling the water flow direction and forming corresponding water paths.

[0063] The inlet chamber 112 is connected to the inlet channel 101, which is used to connect to an external inlet pipe to allow raw water to enter the softening valve; the side wall chamber 113 is connected to the softening tank 200 through the side wall channel 102; the drain chamber 114 is connected to an external drain pipe through the drain channel 103 to discharge wastewater from the softener; the central chamber 115 is connected to the softening tank 200 through the central channel 104; the outlet chamber 116 is connected to an external outlet pipe through the outlet channel 105 to discharge the produced softened water; the water injection and brine suction chamber 117 is connected to the brine tank 300 through the water injection and brine suction channel 106 to inject water into the brine tank 300 and to introduce the brine from the brine tank 300 into the softening tank 200 to regenerate the softening medium in the softening tank 200.

[0064] Reference to Figures 7 to 9 The inlet chamber 112 and outlet chamber 116 are both connected to external pipelines, but not to the soft water tank 200. The side wall chamber 113 and the central chamber 115 are both connected to the soft water tank 200. Therefore, the inlet chamber 112 and outlet chamber 116 can be connected to the soft water tank 200 through the side wall chamber 113 and the central chamber 115. The side wall chamber 113 is adjacent to the inlet chamber 112, so that the inlet chamber 112 is connected to the soft water tank 200 through the side wall chamber 113. The two are arranged adjacent to each other, thereby reducing the flow path of raw water into the soft water tank 200 and simplifying the water path in the soft water valve. The central chamber 115 is adjacent to the outlet chamber 116, so that the outlet chamber 116 is connected to the soft water tank 200 through the central chamber 115. The two are arranged adjacent to each other, thereby reducing the flow path of softened water out of the soft water tank 200 and simplifying the water path in the soft water valve.

[0065] When the softened water from the soft water tank 200 flows out of the soft water valve, some of the softened water can flow to the brine injection chamber 117, thereby injecting water into the brine tank 300. Therefore, the brine injection chamber 117 is located adjacent to the side of the outlet chamber 116 away from the central chamber 115. Thus, when the soft water flows through the outlet chamber 116, some of the soft water can flow directly from the outlet chamber 116 to the brine injection chamber 117. Compared to the method where the brine injection chamber 117 and the outlet chamber 116 are separated and connected by a special flow channel, this solution can effectively shorten the flow path of the soft water into the brine tank 300, thereby further optimizing the water circuit of the soft water valve, and without the need to set up an additional special flow channel, which helps to reduce the size of the soft water valve.

[0066] Optionally, the piston 3 includes a first piston body 31 and a second piston body 32 connected to each other. The diameter of the first piston body 31 is larger than the diameter of the second piston body 32. The first piston body 31 has a water passage 311 that extends through both ends. The water passage around the piston 3 includes a first water passage ring groove 312 on the outer periphery of the first piston body 31 and a second water passage ring groove 321 on the outer periphery of the second piston body 32.

[0067] Please see Figure 7 , Figure 9 and Figure 10 In an embodiment of the present invention, the plurality of water circuit modes include a water production mode. In the water production mode, the inlet chamber 112 is connected to the side wall chamber 113 through the first water-passing ring groove 312, and the central chamber 115 is connected to the outlet chamber 116 through the connection between the first piston body 31 and the second piston body 32. The outer periphery of the first piston body 31 blocks the sewage discharge chamber 114, and the outer periphery of the second piston body 32 blocks the water injection and brine absorption chamber 117. Raw water flows into the inlet chamber 112 through the inlet channel 101, and flows into the soft water tank 200 for softening in sequence through the side wall chamber 113 and the side wall channel 102. The softened water flows out of the soft water valve in sequence through the central channel 104, the central chamber 115, the outlet chamber 116, and the outlet channel 105. Please refer to [link to relevant documentation]. Figure 10 , Figure 10 This is a simplified structural diagram of a water softener in water production mode. The direction indicated by the arrow in the diagram is the water flow direction of the water softener valve in water production mode.

[0068] Please see Figure 7 , Figure 9 and Figure 11 In an embodiment of the present invention, the plurality of water circuit modes include a water injection mode. In the water injection mode, the water inlet chamber 112 is connected to the side wall chamber 113 through the first water-passing ring groove 312, the central chamber 115 is connected to the water outlet chamber 116 through the connection between the first piston body 31 and the second piston body 32, and the water outlet chamber 116 is connected to the water injection and brine absorption chamber 117 through the second water-passing ring groove 321. The outer periphery of the first piston body 31 blocks the sewage discharge chamber 114. Raw water flows into the water inlet chamber 112 through the water inlet channel 101 and sequentially passes through the side wall chamber 113. The water flows into the soft water tank 200 through the side wall channel 102 for softening. The softened water then flows sequentially through the central channel 104 and the central cavity 115 into the outlet cavity 116. A portion of the softened water flows out of the soft water valve through the outlet channel 105, while the other portion flows into the water injection and brine suction cavity 117, thus injecting water into the brine tank 300 through the water injection and brine suction channel 106. This ensures uninterrupted soft water production while injecting water into the brine tank 300, and also reduces salt consumption by ensuring the water entering the brine tank 300 is softened. (See also...) Figure 11 , Figure 11 This is a simplified structural diagram of a water softener in water filling mode. The direction indicated by the arrow in the diagram is the direction of water flow in water filling mode.

[0069] Please see Figure 7 , Figure 9 and Figure 12 In an embodiment of the present invention, the plurality of water circuit modes include a forward washing mode. In the forward washing mode, the inlet chamber 112 is connected to the side wall chamber 113 and to the outlet channel 105 through the water passage 311. The central chamber 115 is connected to the drain chamber 114 through the first water passage ring groove 312. The outer periphery of the second piston body 32 blocks the water injection and salt absorption chamber 117. Raw water flows into the inlet chamber 112 through the inlet channel 101. A portion flows to the outlet chamber 116 through the water passage 311 and is discharged from the soft water valve through the outlet channel 105. Another portion flows to the side wall chamber 113 and flows into the soft water tank 200 through the side wall channel 102 to clean the soft water tank 200. The wastewater after cleaning is discharged from the soft water valve sequentially through the central channel 104, the central chamber 115, the drain chamber 114, and the drain channel 103. Figure 12 This is a simplified structural diagram of a water softener in the forward wash mode. The direction indicated by the arrow in the diagram is the water flow direction of the water softener valve in the forward wash mode.

[0070] Please see Figure 7 , Figure 9 and Figure 13 In an embodiment of the present invention, the multiple water circuit modes include a backwash mode. In the backwash mode, the inlet chamber 112 is connected to the outlet chamber 105 through the water passage 311, the side wall chamber 113 is connected to the drain chamber 114 through the first water passage ring groove 312, the central chamber 115 is connected to the outlet chamber 116 through the connection between the first piston body 31 and the second piston body 32, and the outer periphery of the second piston body 32 blocks the water injection and brine absorption chamber 117; raw water Water flows into the inlet chamber 112 through the inlet channel 101 and then into the outlet chamber 116 via the water passage 311. A portion of the water then exits the softened water valve via the outlet channel 105; the other portion flows into the central chamber 115 and then into the softened water tank 200 via the central channel 104 to clean the softened water tank 200. The wastewater from the cleaning process is then discharged from the softened water valve sequentially through the side wall channel 102, the side wall chamber 113, the drain chamber 114, and the drain channel 103. (See also...) Figure 13 , Figure 13 This is a simplified structural diagram of a water softener in backwash mode. The direction indicated by the arrow in the diagram is the water flow direction of the water softener valve in backwash mode.

[0071] Optionally, the valve body 1 is further provided with a first jet channel, a second jet channel, and a bypass channel 14. The first jet channel is located between the inlet chamber 112 and the side wall chamber 113, and the second jet channel is located between the center chamber 115 and the outlet chamber 116. The soft water valve also includes a jet injector 4 and a plug. One of the jet injector 4 and the plug is located in the first jet channel, and the other is located in the second jet channel. One end of the bypass channel 14 is connected to the water injection and brine suction chamber 117, and the other end is connected to both the first jet channel and the second jet channel.

[0072] Please see Figure 7 , Figure 9 and Figure 14 In an embodiment of the present invention, the plurality of water circuit modes include a downstream regeneration mode. In the downstream regeneration mode, the jet injector 4 is disposed in the first jet channel, and the second jet channel is blocked by a plug so that neither the central cavity 115 nor the outlet cavity 116 can be connected to the bypass channel 14. The inlet cavity 112 is connected to the outlet channel 105 through the water passage 311. The inlet cavity 112 and the side wall cavity 113 are both connected to the first jet channel. The water injection and salt absorption cavity 117 is connected to the bypass channel 14 through the second water passage ring groove 321. The central cavity 115 is connected to the sewage discharge cavity 114 through the first water passage ring groove 312. The side wall cavity 113 is blocked by the outer periphery of the first piston body 31. The brine in the brine tank 300 flows sequentially into the bypass channel 14 via the water injection and brine suction channel 106 and the water injection and brine suction chamber 117. Raw water flows into the inlet chamber 112 via the inlet channel 101; a portion flows to the outlet chamber 116 via the water passage 311 and is discharged from the soft water valve via the outlet channel 105; the other portion flows to the first jet channel, allowing the jet injector 4 to draw in the brine from the brine tank 300 through the bypass channel 14, and then sequentially flows into the soft water tank 200 via the side wall chamber 113 and the side wall channel 102, regenerating the soft water medium in the soft water tank 200. The regenerated wastewater is then discharged from the soft water valve sequentially via the central channel 104, the central chamber 115, the sewage discharge chamber 114, and the sewage discharge channel 103. (See also...) Figure 14 , Figure 14 This is a simplified structural diagram of a water softener in co-current regeneration mode. The direction indicated by the arrow in the diagram is the water flow direction of the water softener valve in co-current regeneration mode.

[0073] Please see Figure 7 , Figure 9 and Figure 15In an embodiment of the present invention, the plurality of water circuit modes include a counter-current regeneration mode. In the counter-current regeneration mode, the first jet channel is blocked by a plug so that neither the inlet chamber 112 nor the side wall chamber 113 can be connected to the bypass channel 14. The jet injector 4 is disposed in the second jet channel. The inlet chamber 112 is connected to the outlet channel 105 through the water passage 311. The outlet chamber 116 and the center chamber 115 are both connected to the second jet channel. The water injection and salt absorption chamber 117 is connected to the bypass channel 14 through the second water passage ring groove 321. The side wall chamber 113 is connected to the sewage discharge chamber 114 through the first water passage ring groove 312. The center chamber 115 is blocked by the outer periphery of the first piston body 31. The brine in the brine tank 300 flows sequentially into the bypass channel 14 via the brine injection channel 106 and the brine injection chamber 117. Raw water flows into the inlet chamber 112 via the inlet channel 101 and then into the outlet chamber 116 via the water passage 311. A portion of the raw water is discharged from the soft water valve via the outlet channel 105; the remaining portion flows into the second jet channel, allowing the jet injector 4 to draw in the brine from the brine tank 300 through the bypass channel 14. This brine then flows sequentially into the soft water tank 200 via the central chamber 115 and the central channel 104, regenerating the soft water medium within the soft water tank 200. The regenerated wastewater is then discharged from the soft water valve sequentially via the side wall channel 102, the side wall chamber 113, the drain chamber 114, and the drain channel 103. (Please refer to...) Figure 15 , Figure 15 This is a simplified structural diagram of a water softener in counter-current regeneration mode. The direction indicated by the arrow in the diagram is the water flow direction of the water softener valve in counter-current regeneration mode.

[0074] In one embodiment, please refer to Figure 18 and Figure 19 The grille assembly 2 includes a plurality of grille units 21 sequentially spliced ​​along the axial direction of the valve cavity 11, and an outer sealing ring groove 211 for the installation of the outer sealing ring 22 is spliced ​​between two adjacent grille units 21; the grille assembly 2 has a pre-installation state, in which an enlarged gap 212 can be formed between two adjacent grille units 21, and the width of the enlarged gap 212 is smaller than the cross-sectional diameter of the outer sealing ring 22; When the opening of the valve cavity 11 is open, the grille assembly 2 is installed in the valve cavity 11 in the pre-installed state, widening the gap 212 to widen the outer sealing ring groove 211, so as to provide a larger deformation space for the outer sealing ring 22; when the drive mounting seat 51 covers the opening of the valve cavity 11, the drive mounting seat 51 abuts against the grille assembly 2 to eliminate the widening gap 212, so that the outer sealing ring 22 abuts against the cavity wall of the valve cavity 11.

[0075] Specifically, multiple grid units 21 are sequentially assembled. To facilitate the assembly of the grid assembly 2, the grid units 21 are often assembled first, and then the entire grid assembly 2 is installed into the valve cavity 11. That is, the assembly of multiple grid units 21 and the outer sealing ring 22 is completed first, and then the grid assembly 2 is installed into the valve cavity 11. Therefore, if multiple grid units 21 are directly assembled, the outer sealing ring 22 is clamped by the outer sealing ring groove 211. In order to ensure the sealing strength, the outer sealing ring 22 and the valve cavity 11 are usually interference fit. This results in a large friction between the outer sealing ring 22 and the cavity wall of the valve cavity 11 during actual installation, making it difficult for the grid assembly 2 to be inserted into the valve cavity 11. It also easily causes the outer sealing ring 22 to shift, increasing the installation difficulty of the grid assembly 2.

[0076] In this design, the grille assembly 2 is pre-installed into the valve cavity 11. The presence of the widened gap 212 further increases the width of the outer sealing ring groove 211 along the axial direction of the valve cavity 11, thereby providing a larger deformation space for the outer sealing ring 22. This reduces the friction between the outer sealing ring 22 and the cavity wall of the valve cavity 11 during assembly, facilitating the installation of the grille assembly 2 into the valve cavity 11 and reducing the probability of the outer sealing ring 22 coming out of the outer sealing ring groove 211. Furthermore, the presence of the widened gap 212 also further increases the radial depth of the outer sealing ring groove 211 along the valve cavity 11, allowing more of the outer sealing ring 22 to be installed within the outer sealing ring groove 211. This helps to reduce the outer diameter of the grille assembly 2 at the outer sealing ring 22, thereby reducing the friction between the outer sealing ring 22 and the cavity wall of the valve cavity 11, further facilitating the installation of the grille assembly 2 into the valve cavity 11. Furthermore, the width of the widened gap 212 is smaller than the cross-sectional diameter of the outer sealing ring 22, thereby reducing the possibility of the outer sealing ring 22 getting stuck in the widened gap 212 while reducing the installation difficulty of the grille assembly 2.

[0077] When the drive mounting base 51 covers the opening of the valve cavity 11, the drive mounting base 51 abuts against the grille assembly 2. Under the pressing action of the drive mounting base 51, the widening gap 212 is eliminated, and the depth and width of the outer sealing ring groove 211 are reduced. This allows two adjacent grille units 21 to clamp the sealing ring groove 516 together, and also allows the outer sealing ring 22 to abut against the cavity wall of the valve cavity 11. This facilitates the installation of the grille assembly 2 and ensures the sealing strength between the grille assembly 2 and the cavity wall of the valve cavity 11.

[0078] In one embodiment, please refer to Figure 14 and Figure 15 The piston 3 includes a first piston 33 and a second piston 34, both of which are provided with a first water-passing ring groove 312. The axial position of the first water-passing ring groove 312 on the first piston 33 is different from the axial position on the second piston 34. The first piston 33 and the second piston 34 are selectively installed into the grille assembly 2. Multiple water circuit modes include a regeneration water circuit mode. When the first piston 33 is installed inside the bar screen assembly 2, in the regeneration water circuit mode, the first water-passing ring groove 312 connects the central cavity 115 and the sewage discharge cavity 114 to achieve co-current regeneration. When the second piston 34 is installed inside the bar screen assembly 2, in the regeneration water circuit mode, the first water-passing ring groove 312 connects the side wall cavity 113 and the sewage discharge cavity 114 to achieve counter-current regeneration.

[0079] In other words, the soft water valve in this solution can be either a forward-flow regeneration valve or a reverse-flow regeneration valve. From the structural perspective of the soft water valve, the forward-flow regeneration valve and the reverse-flow regeneration valve only differ in the structure of the first piston 33 and the second piston 34, while the valve body 1, the grid assembly 2, and other structures are completely identical. That is, the forward-flow regeneration valve and the reverse-flow regeneration valve can share the valve body 1 and the grid assembly 2, etc. Therefore, in actual production, the forward-flow regeneration valve and the reverse-flow regeneration valve can be realized by producing the same valve body 1, thereby saving the cost of a set of molds and helping to save the processing cost of the soft water valve. Furthermore, the only difference between the first piston 33 and the second piston 34 is that the axial position of the first water-passing ring groove 312 on the first piston 33 is different from that on the second piston 34. That is, the water passage levels on the first piston 33 and the second piston 34 are different. Therefore, in actual production, only the position of the first water-passing ring groove 312 needs to be adjusted to simultaneously process the co-current regeneration valve and the counter-current regeneration valve. Compared with the prior art, which processes the co-current regeneration valve and the counter-current regeneration valve separately and assembles them separately, this solution can not only improve processing efficiency, but also save the cost of a set of molds, thereby reducing the cost of the soft water valve.

[0080] Please refer to Figures 16 to 18 In one embodiment, the valve body 1 includes a valve body 15 and a valve base 16, which are assembled separately. A soft-shell interface 161 is disposed on the valve base 16. The valve body 15 has a first dividing rib 151 on the side near the valve base 16, which cooperates with the grille assembly 2 to separate multiple water passage chambers 111. The valve base 16 has a second dividing rib 162 corresponding to each first dividing rib 151. The first dividing rib 151 has a first rib surface 1511 and a second rib surface 1512 that are radially opposite to each other in the valve chamber 11. The grille assembly 2 is sealed and abuts against the first rib surface 1511, and the second dividing rib 162 is fixedly connected to the second rib surface 1512. Optionally, the valve body 15 and the valve base 16 are connected by hot plate welding.

[0081] Optionally, the first jet channel, the second jet channel, the inlet channel 101, the outlet channel 105, and the water injection and salt absorption channel 106 are all formed in the valve body 15, thereby ensuring the circumferential continuity of the first jet channel, the second jet channel, the inlet channel 101, the outlet channel 105, and the water injection and salt absorption channel 106, thereby reducing the possibility of water leakage. Of course, in other embodiments, the first jet channel, the second jet channel, the inlet channel 101, the outlet channel 105, and the water injection and salt absorption channel 106 may be partially located on the valve body 15, with the other part formed by splicing the valve body 15 and the valve base 16 and / or located on the valve base 16; or, the first jet channel, the second jet channel, the inlet channel 101, the outlet channel 105, and the water injection and salt absorption channel 106 may all be formed by splicing the valve body 15 and the valve base 16; or, the first jet channel, the second jet channel, the inlet channel 101, the outlet channel 105, and the water injection and salt absorption channel 106 may all be located on the valve base 16.

[0082] In this embodiment, the valve body 15 has a first separating rib 151 on the side near the valve base 16 to separate multiple water passage chambers 111. The first rib surface 1511 of the separating rib abuts against the grid assembly 2. That is, each first separating rib 151 abuts against a support ring 24 of the grid assembly 2. This ensures that the outer periphery of the grid assembly 2 abuts only against the valve body 15, thereby eliminating the impact of the abutment between the outer periphery of the grid assembly 2 and the inner periphery of the valve chamber 11 on the splicing of the valve body 15 and the valve base 16. This reduces the probability of cracking at the splicing point of the valve body 15 and the valve base 16, which in turn reduces the probability of the valve body 1 bursting, thus improving the service life of the soft water valve. In addition, the fixed connection between the second separating rib 162 and the second rib surface 1512 also increases the connection area between the valve body 15 and the valve base 16, thereby increasing the connection strength between the valve body 15 and the valve base 16, further reducing the probability of the valve body 1 bursting and improving the service life of the soft water valve.

[0083] Optionally, the splicing surface between the valve body 15 and the valve base 16 passes through the bypass channel 14 to facilitate the formation of the bypass channel 14.

[0084] Optionally, the valve body 1 is further provided with a mixing channel, one end of which is connected to the inlet chamber 112 and / or the inlet channel 101, and the other end is connected to the outlet chamber 116 and / or the outlet channel 105; the soft water valve also includes a mixing valve corresponding to the mixing channel; thus, in the water production mode, when the mixing valve is opened, a portion of the raw water can flow directly from the inlet channel 101 and / or the inlet chamber 112 through the mixing channel into the outlet chamber 116 and / or the outlet channel 105, thereby mixing with the softened soft water (sodium ions increase during the softening process), and then being delivered to the external outlet pipe to reduce the phenomenon of excessive sodium ions, thereby meeting the low concentration requirements for sodium ions in some regions (such as Europe). Optionally, the splicing surface between the valve body 15 and the valve base 16 passes through the mixing channel to facilitate the formation of the mixing channel.

[0085] The above description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention. All equivalent structural transformations made under the inventive concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. A water softener characterized by comprising: include: A soft water valve includes a valve body with a valve cavity, the valve body having a soft water tank interface, and the soft water tank interface having a side wall channel and a central channel that are both connected to the valve cavity; A soft water tank is installed on the outside of the soft water tank interface; The first water distributor is installed inside the soft tank interface; The central tube has a first end connected to the central channel and a second end inserted through the first water distributor to extend into the soft water tank. as well as The second water distributor is located at the second end of the central pipe; The soft water tank, the first water distributor, the central pipe, and the second water distributor together form a soft water cavity, which is filled with soft water medium. The side wall channel is connected to the soft water cavity via the first water distributor.

2. The water softener of claim 1 wherein, The first water distributor is snapped into the inside of the soft can interface.

3. The water softener of claim 1 wherein, The water softener also includes a water distribution mounting base, which is fixed to the inside of the water softener tank interface, and the first water distributor is installed on the water distribution mounting base.

4. The water softener as described in claim 3, characterized in that, The water distribution mounting base is detachably connected to the soft tank interface; and / or, the first water distributor is detachably connected to the water distribution mounting base.

5. The water softener as described in claim 3, characterized in that, The water distribution mounting base includes an inner ring, an outer ring, and several connecting arms connecting the inner ring and the outer ring. The central tube is adapted to pass through the inner ring, the outer ring is attached to the inner wall of the soft can interface, and the first water distributor is installed on the outer ring.

6. The water softener as described in claim 5, characterized in that, The soft can interface has at least a number of threaded post holes corresponding to a portion of the connecting arm, and the corresponding connecting arm has mounting holes corresponding to the threaded post holes. Screws pass through the mounting holes and connect to the threaded post holes to fix the water distribution mounting base to the valve body; and / or One of the outer ring portion and the first water distributor is provided with a protruding buckle, and the other is provided with a rotating groove. The rotating groove includes an inlet groove section and a limiting groove section that are bent and connected. The protruding buckle is engaged with the limiting groove section through the inlet groove section; and / or A central sealing ring is provided between the central channel and the central tube, and the inner ring portion restricts the central sealing ring from disengaging from the central channel along the axial direction of the central tube.

7. The water softener as described in claim 1, characterized in that, The water softener also includes a transition ring disposed within the central channel, and the first end of the central pipe is installed within the transition ring.

8. The water softener as described in claim 7, characterized in that, The adapter ring is detachably connected to the central channel; the central tube includes a first central tube and a second central tube, the diameter of the first central tube being smaller than the diameter of the second central tube; the soft water tank includes a first soft water tank and a second soft water tank, the diameter of the first soft water tank being smaller than the diameter of the second soft water tank. When the first soft can is installed in the soft can interface, the adapter ring is installed in the central channel, and the first central tube is installed in the adapter ring; When the second soft can is installed in the soft can interface, the second central tube is directly installed in the central channel.

9. The water softener as described in claim 7, characterized in that, The water softener also includes a water distribution mounting base, which is fixed to the inside of the soft tank interface, and the first water distributor is mounted on the water distribution mounting base. The water distribution mounting base restricts the adapter ring from disengaging from the central channel along the axial direction of the central pipe.

10. The water softener as described in claim 9, characterized in that, An annular groove is provided at the edge of the channel opening near the soft water tank in the central channel. An installation ring protrusion is provided on the outer side of the adapter ring. The installation ring protrusion is inserted into the annular groove, and the water distribution mounting seat abuts and limits the installation ring protrusion in the annular groove.

11. The water softener as described in claim 10, characterized in that, The free end face of the mounting annular protrusion is provided with a first sealing groove, and a transition sealing ring is provided between the first sealing groove and the annular recess; and / or The inner surface of the adapter ring is provided with a second sealing groove, and a central sealing ring is provided between the second sealing groove and the central tube; and / or The inner side of the adapter ring has a guide slope at the end near the soft water tank.

12. The water softener as described in claim 11, characterized in that, When the adapter ring is provided with the second sealing groove, the second sealing groove and the mounting ring are misaligned in the axial direction of the adapter ring.

13. The water softener as described in claim 1, characterized in that, The soft water tank and the soft water tank interface are detachably connected.

14. The water softener as described in claim 13, characterized in that, The soft water tank is threadedly connected to the soft water tank interface; and / or, a soft water tank sealing ring is provided between the soft water tank and the soft water tank interface.

15. The water softener according to any one of claims 1 to 14, characterized in that, The valve body is also provided with an inlet channel, an outlet channel, a sewage discharge channel, and a brine injection channel that communicate with the valve cavity; The soft water valve further includes a grid assembly disposed in the valve cavity and a piston disposed in the grid assembly. The grid assembly divides the valve cavity into multiple water passage chambers along its axial direction. The multiple water passage chambers include an inlet chamber communicating with the inlet channel, a side wall chamber communicating with the side wall channel, a sewage discharge chamber communicating with the sewage discharge channel, a central chamber communicating with the central channel, an outlet chamber communicating with the outlet channel, and a water injection and brine suction chamber communicating with the brine injection channel. The inlet chamber, the side wall chamber, the sewage discharge chamber, the central chamber, the outlet chamber, and the water injection and brine suction chamber are arranged sequentially along the axial direction of the valve cavity. The soft water valve has multiple water circuit modes, and the piston moves axially along the valve cavity to switch between the multiple water circuit modes.

16. The water softener as described in claim 15, characterized in that, The grid assembly includes multiple grid units sequentially spliced ​​along the axial direction of the valve cavity, with an outer sealing ring groove formed between adjacent grid units for the installation of an outer sealing ring; the grid assembly has a pre-installation state, in which a widened gap can be formed between adjacent grid units, the width of the widened gap being smaller than the cross-sectional diameter of the outer sealing ring; the soft water valve also includes a drive mounting seat that seals the valve cavity opening; when the valve cavity opening is in an open state, the grid assembly is installed into the valve cavity in the pre-installation state, and the widened gap widens the outer sealing ring groove to provide greater deformation space for the outer sealing ring; When the drive mounting seat covers the opening of the valve cavity, the drive mounting seat abuts against the grille assembly to eliminate the widened gap, causing the outer sealing ring to press tightly against the cavity wall of the valve cavity; and / or The piston includes a first piston and a second piston, both equipped with a first water-passing annular groove. The axial position of the first water-passing annular groove on the first piston is different from its axial position on the second piston. One of the first piston and the second piston is selectively installed within the bar screen assembly. Multiple water circuit modes include a regeneration water circuit mode. When the first piston is installed within the bar screen assembly, in this mode, the first water-passing annular groove connects the central cavity and the sewage discharge cavity to achieve co-current regeneration. When the second piston is installed within the bar screen assembly, in this mode, the first water-passing annular groove connects the sidewall cavity and the sewage discharge cavity to achieve counter-current regeneration. And / or The valve body includes a valve body and a valve base that are assembled separately. The soft can interface is located on the valve base. The valve body has a first dividing rib on one side near the valve base that cooperates with the grille assembly to separate multiple water passage chambers. The valve base has a second dividing rib corresponding to each of the first dividing ribs. The first dividing rib has a first rib surface and a second rib surface that are radially opposite each other in the valve chamber. The grille assembly is sealed and abuts against the first rib surface, and the second dividing rib is fixedly connected to the second rib surface.

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