Water softening valve and water softener

Abstract

The invention discloses a water softening valve and a water softener, and relates to the technical field of water treatment equipment.The water softening valve comprises a valve body and a driving mechanism; the valve body is provided with a piston and a valve cavity communicated with a plurality of channels, and the piston is arranged in the valve cavity in a sliding mode so as to switch the channels communicated with the valve cavity; the driving mechanism comprises a mounting seat, a transmission assembly and a driving part, the mounting seat is connected to the valve body, the transmission assembly is movably arranged on the mounting seat and is in transmission connection with the piston, a first mounting groove is concavely formed in the mounting seat from the side deviating from the valve body to the side connected with the valve body, and a second mounting groove is concavely formed in the mounting seat from the side deviating from the valve body to the side connected with the piston. The driving part is at least partially installed in the first installation groove, and the driving part is in driving connection with the transmission assembly. According to the technical scheme, the size of the soft water valve is reduced, and the installation convenience of the soft water valve is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment equipment, in particular to a water softener and a water softener. Background Art

[0002] A water softener can soften water, improving user experience and saving detergent and water. The core component of a water softener is the water valve, which switches between different water modes, such as water purification, backwashing, salt absorption and regeneration, forward washing, and water injection, by controlling the reciprocating movement of a piston. In related technologies, the independent drive mechanism that drives the piston takes up a considerable amount of space, resulting in a bulky water softener and hindering installation. Summary of the Invention

[0003] The main purpose of the present invention is to provide a water softener and a water softener, aiming to reduce the volume of the water softener and improve the installation convenience of the water softener.

[0004] To achieve the above-mentioned purpose, the soft water valve proposed by the present invention comprises:

[0005] a valve body, the valve body being provided with a piston and a valve cavity communicating with a plurality of channels, the piston being slidably disposed in the valve cavity to switch the channels communicating with the valve cavity; and

[0006] The driving mechanism includes a mounting seat, a transmission assembly and a driving member, the mounting seat is connected to the valve body, the transmission assembly is movably arranged on the mounting seat and is transmission-connected to the piston, the mounting seat is recessed to form a first mounting groove from the side away from the valve body toward the side connected to the valve body, the driving member is at least partially installed in the first mounting groove, and the driving member is drivingly connected to the transmission assembly.

[0007] In one embodiment, the driving member is located outside the transmission assembly in a radial direction of the piston.

[0008] In one embodiment, a plurality of supporting protrusions are distributed around the periphery of the first mounting groove, the driving member includes a driving body and an output part connected to each other, the output part is drivingly connected to the transmission assembly, the radial dimension of the output part is larger than the radial dimension of the driving body, the driving body is installed in the first mounting groove, and the output part abuts against the supporting protrusions.

[0009] In one embodiment, a support column is provided on a side of the mounting seat facing away from the valve body, and a connecting lug is provided on a periphery of the output portion, and the connecting lug is connected to the support column.

[0010] In one embodiment, the mounting seat is further provided with a second mounting groove from the side away from the valve body toward the side connected to the valve body, and the driving mechanism further includes an energy storage component, which is at least electrically connected to the driving component, and the energy storage component is installed in the second mounting groove.

[0011] In one embodiment, the valve body is radially provided with a valve port. On one side of the valve body where the valve port is provided, the energy storage member and the driving member are arranged opposite to the transmission assembly, and the driving member and the energy storage member are distributed along the circumference of the piston.

[0012] In one embodiment, the valve body is connected to the mounting seat by bolt locking.

[0013] In one embodiment, a plurality of nuts are embedded at intervals on the periphery of the valve body on a side of the valve body abutting against the mounting seat, and the mounting seat is provided with connecting holes corresponding to the nuts, and the connecting holes are for bolts to pass through until the bolts are connected to the nuts.

[0014] In one embodiment, the valve body is connected to a side of the mounting seat and is provided with a cavity opening connected to the valve cavity. The mounting seat is provided with a connecting column protruding toward the valve body. The transmission assembly is movably passed through the connecting column, and the connecting column is inserted into the cavity opening. The outer periphery of the connecting column abuts against the cavity wall of the valve cavity.

[0015] In one embodiment, a sealing ring groove is formed on the outer circumference of the connecting column, and a sealing ring is provided in the sealing ring groove. The sealing ring abuts against the cavity wall of the valve cavity at the notch of the sealing ring groove.

[0016] In one embodiment, the transmission assembly includes a transmission rod and a transmission wheel, the transmission rod is connected to the piston and is slidably inserted into the mounting seat, the transmission wheel is rotationally connected to the mounting seat, the driving member is drivingly connected to the transmission wheel, the transmission wheel is sleeved on the transmission rod and threadedly connected to the transmission rod.

[0017] In one embodiment, the drive mechanism further includes a stroke detector and a detection disk, the detection disk having a plurality of detection portions distributed along the circumference, the transmission wheel including a gear ring and a mounting body, the gear ring being disposed on the outer circumference of the mounting body, the transmission rod passing through the mounting body and being threadedly connected to the mounting body, and the mounting body being rotatably connected to the mounting seat;

[0018] The detection disc is arranged on the outer periphery of the mounting body and is spaced apart and opposite to the gear ring. The stroke detection member is connected to the mounting seat to identify the detection part.

[0019] In one embodiment, the driving mechanism further includes a connecting frame connected to the mounting seat, the stroke detection member is connected to the connecting frame and is located at the periphery of the detection disk, and the detection portion is movably provided in the stroke detection member.

[0020] In one embodiment, the soft water valve is further provided with a reset detection member, the piston and the transmission rod have initial positions, the reset detection member is provided on the connecting frame, and the reset detection member is used to detect that the transmission rod is located at the initial position.

[0021] In one embodiment, the connecting frame spacer cover is arranged outside the transmission wheel and the detection disk, the connecting frame is provided with an avoidance hole, and the transmission rod is movably inserted into the avoidance hole.

[0022] In one embodiment, a clearance opening is provided on a circumferential side of the connecting frame, the driving member is provided with an output gear, and the gear ring is engaged with the output gear through the clearance opening.

[0023] In one embodiment, the plurality of channels include a water inlet channel, a sidewall channel, a sewage channel, a central channel, a water outlet channel, and a salt absorption and water injection channel;

[0024] The soft water valve further includes a grille assembly provided in the valve cavity, the grille assembly sequentially dividing the valve cavity into a plurality of water passage chambers along its axial direction, the plurality of water passage chambers including a water inlet chamber communicating with the water 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, a water outlet chamber communicating with the water outlet channel, and a water injection and salt absorption chamber communicating with the salt absorption and injection channel, the water inlet chamber, the side wall chamber, the sewage discharge chamber, the central chamber, the water outlet chamber, and the water injection and salt absorption chamber being sequentially provided along the axial direction of the valve cavity;

[0025] The soft water valve has multiple water path modes, and the piston moves along the axial direction of the valve cavity to switch the soft water valve between the multiple water path modes.

[0026] In one embodiment, the grille assembly includes a plurality of grille units sequentially spliced and arranged along the axial direction of the valve cavity, and an outer sealing ring groove for mounting an outer sealing ring is formed between two adjacent grille units; the grille assembly has a pre-installed 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;

[0027] The mounting seat covers the cavity opening of the valve cavity. When the cavity opening of the valve cavity is in an open state, the grille assembly is installed to the valve cavity in the pre-installed state, and the widened gap widens the outer sealing ring groove to provide a larger deformation space for the outer sealing ring; when the mounting seat covers the cavity opening of the valve cavity, the mounting seat abuts the grille assembly to eliminate the widened gap, so that the outer sealing ring abuts against the cavity wall of the valve cavity.

[0028] 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 of the second piston. Either the first piston or the second piston is installed in the grille assembly.

[0029] The multiple water channel modes include a regeneration water channel mode. When the first piston is installed in the grille assembly, in the regeneration water channel mode, the first water ring groove connects the central cavity and the sewage discharge cavity to achieve downstream regeneration; when the second piston is installed in the grille assembly, in the regeneration water channel mode, the first water ring groove connects the side wall cavity and the sewage discharge cavity to achieve countercurrent regeneration.

[0030] In one embodiment, the valve body is provided with a soft tank interface, and the side wall channel and the center channel both of which are connected to the valve cavity are provided in the soft tank interface. The valve body includes a valve body and a valve base that are spliced together. The soft tank interface is provided on the valve base. The valve body is provided with a first dividing rib on the side close to the valve base, which cooperates with the grille assembly to separate a plurality of water flow cavities. The valve base is provided with 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 opposite in the radial direction of the valve cavity. The grille assembly is sealed and abutted against the first rib surface, and the second dividing rib is fixedly connected to the second rib surface.

[0031] The present invention also provides a water softener, which includes the aforementioned soft water valve.

[0032] The technical solution of the present invention uses a driving member to drive the transmission assembly to transmit power to the piston, thereby pulling the piston to slide within the valve cavity, so that the piston can adjust the on-off status of multiple channels connected to the valve cavity, completing the switching of different operating modes such as water purification, backwashing, salt absorption regeneration, forward washing and water injection. Among them, the driving member is at least partially embedded in the first mounting groove of the mounting seat, so that the driving member is closer to the valve body, which can reduce the degree of protrusion of the driving member from the mounting seat, that is, reduce the thickness of the driving mechanism, and further reduce the space occupied by the driving mechanism independently, making the driving mechanism and the valve body more compact, thereby reducing the overall dimensions of the soft water valve, improving the space utilization of the soft water valve installation space, and facilitating the installation of the soft water valve. At the same time, the first mounting groove provides a relatively stable mounting support for the driving member. During the operation of the driving member, the first mounting groove can improve the stability of the driving member on the mounting seat, shortening the distance between the driving connection of the driving member and the transmission assembly relative to the valve body. It can be seen that the transmission assembly is also arranged close to the valve body, thereby improving the compactness of the soft water valve, reducing the space required for the soft water valve, and ensuring the installation convenience of the soft water valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0034] Figure 1 A schematic structural diagram of an embodiment of a soft water valve provided by the present invention;

[0035] Figure 2 for Figure 1 Schematic diagram of the structure of the middle drive mechanism;

[0036] Figure 3 for Figure 2 Schematic diagram of the structure of the middle mounting seat;

[0037] Figure 4 for Figure 1 Schematic diagram of the structure of the middle drive mechanism excluding the connecting frame;

[0038] Figure 5 for Figure 4 A partial enlarged view of point A in the middle;

[0039] Figure 6 for Figure 1 A schematic structural diagram of the middle driving mechanism with the driving member exploded from another angle;

[0040] Figure 7 for Figure 1Another angle diagram of the structure of the medium soft water valve;

[0041] Figure 8 for Figure 1 Another angle structural diagram of the medium soft water valve;

[0042] Figure 9 for Figure 8 Cross-sectional view of the medium soft water valve along AA;

[0043] Figure 10 for Figure 1 Another angle structural diagram of the medium soft water valve;

[0044] Figure 11 for Figure 10 Cross-sectional view of the medium soft water valve along BB;

[0045] Figure 12 for Figure 1 Simplified structural diagram of the medium-soft water valve in water production mode;

[0046] Figure 13 for Figure 1 Simplified schematic diagram of the medium soft water valve in water injection mode;

[0047] Figure 14 for Figure 1 Simplified structural diagram of the medium soft water valve in forward wash mode;

[0048] Figure 15 for Figure 1 Simplified structural diagram of the medium soft water valve in backwash mode;

[0049] Figure 16 for Figure 1 Simplified structural diagram of the medium-soft water valve in downstream regeneration mode;

[0050] Figure 17 A simplified structural diagram of a soft water valve in a reverse flow regeneration mode according to another embodiment of the present invention;

[0051] Figure 18 for Figure 1 Another angle diagram of the structure of the middle valve body;

[0052] Figure 19 for Figure 18 Cross-sectional view of the middle valve body along CC;

[0053] Figure 20 for Figure 1 Schematic diagram of the structure of the middle grille assembly;

[0054] Figure 21 for Figure 20 A partial enlarged view of point B in the middle.

[0055] Description of Figure Numbers:

[0056] 1. Valve body; 101. Water inlet channel; 102. Side wall channel; 103. Sewage discharge channel; 104. Center channel; 105. Water outlet channel; 106. Water injection and salt absorption channel;

[0057] 11. Valve chamber; 111. Water passage chamber; 112. Water inlet chamber; 113. Side wall chamber; 114. Sewage discharge chamber; 115. Center chamber; 116. Water outlet chamber; 117. Water injection and salt absorption chamber;

[0058] 14. Bypass flow channel;

[0059] 15. Valve body; 151. First separating rib; 1511. First rib surface; 1512. Second rib surface;

[0060] 16. Valve base; 161. Soft tank interface; 162. Second separating rib;

[0061] 2. Grille assembly; 21. Grille unit; 211. Outer sealing ring groove; 212. Widened gap; 22. Outer sealing ring; 24. Support retaining ring;

[0062] 3. Piston; 31. First piston body; 311. Water passage; 312. First water ring groove; 32. Second piston body; 321. Second water ring groove; 33. First piston; 34. Second piston;

[0063] 4. Ejector;

[0064] 5. Driving mechanism; 51. Mounting seat; 511. First mounting groove; 512. Supporting protrusion; 513. Supporting column; 514. Connecting hole; 515. Connecting column; 516. Sealing ring groove;

[0065] 52. Transmission wheel; 521. Mounting body; 522. Gear ring; 53. Transmission rod; 54. Driving member; 541. Driving body; 542. Output portion; 543. Connecting lug; 544. Output gear;

[0066] 55. Connecting frame; 551. Avoidance hole; 552. Make way opening; 56. Inspection plate; 561. Inspection unit; 57. Stroke detection member;

[0067] 200, soft water tank; 300, salt box.

[0068] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0069] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0070] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0071] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0072] The present invention proposes a soft water valve for a water softener. As one of the core components of a water softener, the soft water valve often has multiple water path modes, such as water production mode, forward washing mode, backwash mode and softening regeneration mode (water injection mode and salt absorption regeneration mode), so that the water softener has multiple working conditions.

[0073] Please refer to Figure 1 、 Figure 3 and Figure 11 In one embodiment of the present invention, the soft water valve comprises:

[0074] A valve body 1 is provided with a piston 3 and a valve cavity 11 connected to a plurality of channels. The piston 3 is slidably provided in the valve cavity 11 to switch the channels connected to the valve cavity 11; and

[0075] The driving mechanism 5 includes a mounting seat 51, a transmission assembly and a driving member 54. The mounting seat 51 is connected to the valve body 1. The transmission assembly is movably arranged on the mounting seat 51 and is transmission-connected to the piston 3. The mounting seat 51 is provided with a first mounting groove 511 from the side away from the valve body 1 toward the concave side connected to the valve body 1. The driving member 54 is at least partially installed in the first mounting groove 511, and the driving member 54 is drivingly connected to the transmission assembly.

[0076] The technical solution of the present invention utilizes a driver 54 to drive the transmission assembly to transmit power to the piston 3, thereby pulling the piston 3 to slide within the valve chamber 11, so that the piston 3 can adjust the on / off conditions of multiple channels connected to the valve chamber 11, completing the switching of different operating modes such as water purification, backwashing, salt absorption regeneration, forward washing, and water injection. The driver 54 is at least partially embedded in the first mounting groove 511 of the mounting seat 51, so that the driver 54 is closer to the valve body 1. This can reduce the degree to which the driver 54 protrudes from the mounting seat 51, thereby reducing the thickness of the driving mechanism 5, thereby reducing the space occupied by the driving mechanism 5 independently, making the driving mechanism 5 and the valve body 1 more compact, thereby reducing the overall dimensions of the soft water valve, improving the space utilization of the soft water valve installation space, and facilitating the installation of the soft water valve. At the same time, the first mounting groove 511 provides a relatively stable mounting support for the driving member 54. During the operation of the driving member 54, the first mounting groove 511 can improve the stability of the driving member 54 on the mounting seat 51, shortening the distance between the driving connection of the driving member 54 and the transmission assembly relative to the valve body 1. It can be seen that the transmission assembly is also arranged close to the valve body 1, thereby improving the compactness of the soft water valve, reducing the space required for the soft water valve, and ensuring the convenience of installation of the soft water valve.

[0077] It is understood that the drive connection between the driver 54 and the transmission assembly is located on the side of the mounting seat 51 facing away from the valve body 1. Here, the transmission assembly is inserted into the mounting seat 51 and then connected to the piston 3. The transmission assembly and the piston 3 are arranged on the same axial direction, while the driver 54 is located at a different axial position parallel to the axis of the transmission assembly. The valve body 1 has a space for the first mounting groove 511 to protrude, presenting an abutment relative to the valve body 1 and the mounting seat 51. The first mounting groove 511 is at least partially protruded and arranged close to the valve body 1. It should be noted that the driver 54 is configured as a motor, a cylinder, etc., and the descriptions of the axial, circumferential, and radial directions referred to in this technical solution are based on the cylindrical space formed by the sliding piston 3 and will not be repeated here. In addition, the first mounting groove 511 can be formed by stamping the first mounting groove 511 from the mounting seat 51, or a mounting opening can be provided on the mounting seat 51, and the first mounting groove 511 can be connected to the mounting seat 51 by welding or clamping.

[0078] Regarding the position of the driving member 54 relative to the transmission assembly, in one embodiment, please refer to Figure 1 、 Figure 4 and Figure 6 The driver 54 is located radially outside the transmission assembly relative to the piston 3. Because the piston 3 slides axially within the valve chamber 11, the driver 54 in related art is often located at one end of the piston 3's axial motion path, increasing the axial length of the water softener and occupying more installation space. This embodiment places the driver 54 radially outside the transmission assembly, fully utilizing the radial space available in the water softener and avoiding the driver 54's additional axial space occupation, thereby effectively reducing the axial dimension of the water softener. The driver 54 and the outer periphery of the valve body 1 are axially opposed, and the first mounting groove 511 is understood to be axially protruding toward the side of the valve body 1. Thus, the transmission assembly and driver 54 are radially opposed, the transmission assembly and valve body 1 are axially opposed, and the outer periphery of the driver 54 and valve body 1 are axially opposed, which helps improve the regularity and compactness of the water softener. Of course, in other embodiments, the output portion 542 of the driver 54 is axially opposed to the transmission assembly, while the driver body 541 of the driver 54 is radially opposed to the transmission assembly.

[0079] Regarding the mounting structure of the driving member 54 on the mounting base 51, in one embodiment, please refer to Figure 2 、 Figure 3 and Figure 6A plurality of supporting protrusions 512 are distributed around the periphery of the first mounting groove 511. The driving member 54 includes a driving body 541 and an output portion 542 connected to each other. The output portion 542 is drivingly connected to the transmission assembly. The radial dimension of the output portion 542 is larger than the radial dimension of the driving body 541. The driving body 541 is mounted in the first mounting groove 511, and the output portion 542 abuts against the supporting protrusions 512. It should be noted that the radial dimension is understood to be the maximum width of the cross section in the radial direction. It can be seen that the output portion 542 is located outside the first mounting groove 511 and can abut against the supporting protrusions 512 along the axial direction, thereby utilizing the supporting protrusions 512 to support the driving member 54 outside the first mounting groove 511, thereby reducing the noise caused by the vibration of the driving member 54 and the collision with the mounting seat 51. In particular, the support protrusion 512 axially supports the output portion 542. It can be seen that the support position of the support protrusion 512 on the driver 54 is located relatively close to the outer periphery of the driver 54. This effectively provides stable support for the driver 54, ensuring the stability of the driver 54 on the mounting seat 51. This allows for a more even transmission of driving force to the transmission assembly during transmission, preventing problems such as deviation and shaking caused by uneven force or loose installation. Furthermore, the support protrusion 512 is sandwiched between the output portion 542 and the mounting seat 51, reducing the exposure of the structure of the driver 54 or the space occupied by the independent mounting seat, thereby ensuring a smaller size for the soft water valve. Without loss of generality, a shock-absorbing pad is provided on the side of the output portion 542 facing the mounting seat 51. The shock-absorbing pad abuts the support protrusion 512 to reduce noise generated by collision between the driver 54 and the mounting seat 51. Of course, in other embodiments, the driving member 54 and the first mounting groove 511 may form a matching structure to stably mount the driving member 54 on the mounting base 51 .

[0080] Further, in this embodiment, please refer to Figure 2 、 Figure 3 and Figure 6A support column 513 is provided on the side of the mounting seat 51 facing away from the valve body 1, and a connecting lug 543 is provided on the periphery of the output portion 542, and the connecting lug 543 is connected to the support column 513. The connecting lug 543 is located at the outer periphery of the output portion 542, and correspondingly, the support column 513 is also located at the outer periphery of the connecting lug 543. The connecting lug 543 and the support column 513 are connected to form a connection between the outer periphery of the driving member 54 and the mounting seat 51. With reference to the radial outer side of the transmission assembly on the driving member 54, the piston 3 slides back and forth in the axial direction, and the shear force on the driving member 54 in the axial direction is more prominent. The connecting lug 543 and the support column 513 located at the outer periphery of the driving member 54 can effectively ensure the stability of the driving member 54 on the mounting seat 51, prevent it from radial shaking or axial tilting, and thereby improve the working stability and response accuracy of the entire driving mechanism 5. In addition, in conjunction with the above-mentioned cooperation between the support protrusion 512 and the output portion 542, the connecting lug 543 and the support column 513 form a connection relationship at the outer periphery of the driver 54, and the support protrusion 512 and the output portion 542 form an abutting support relationship at the periphery of the first mounting groove 511. It can be seen that the force applied to the connecting lug 543 and the support column 513 can form axial stability with the force applied between the support protrusion 512 and the output portion 542. In this way, the driving body 541 of the driver 54 can have a gap with the groove wall of the first mounting groove 511, thereby reducing the noise generated by the driver 54 colliding with the mounting seat 51 due to vibration. Among them, the connecting lug 543 and the support column 513 are connected by screw locking, and the periphery of the support column 513 is provided with a reinforcing rib structure. Of course, in other embodiments, the output portion 542 can also be screwed to the mounting seat 51 by long screws.

[0081] In one embodiment, please refer to Figure 1 and Figure 3, the mounting seat 51 is also recessed with a second mounting groove (not shown) toward the valve body 1 from the side facing away from the valve body 1, and the drive mechanism 5 also includes an energy storage component (not shown), which is at least electrically connected to the drive component 54, and the energy storage component is installed in the second mounting groove. As for the setting position of the energy storage component, the energy storage component is set in the second mounting groove, just like the first mounting groove 511 is set to the drive component 54, which also shortens the space occupied by the energy storage component in the axial direction, thereby reducing the space occupied by the energy storage component independently, improving the integration level of the drive mechanism 5, thereby effectively improving the space utilization and structural compactness of the soft water valve. At the same time, the second mounting groove makes it unnecessary for the energy storage component to be externally mounted or arranged separately, which not only reduces the complexity of external wiring, but also reduces the risk of the soft water valve being damaged due to exposed components during transportation and installation. Among them, the energy storage component is configured as a battery for supplying electricity to the drive component 54 to ensure the operation of the drive component 54, and for other power-consuming components of the drive mechanism 5 and the valve body 1, the energy storage component can also be used for power supply. Of course, in other embodiments, the energy storage component may also be directly mounted on the side of the mounting seat 51 facing the valve body 1 or the side facing away from the valve body 1 .

[0082] Further, in this embodiment, please refer to Figure 1 and Figure 7 The valve body 1 is provided with a valve port in the radial direction. On the side of the valve body 1 where the valve port is provided, the energy storage component and the driving component 54 are arranged opposite to the transmission assembly. The driving component 54 and the energy storage component are distributed along the circumference of the piston 3. It should be noted that the valve port referred to in this embodiment is Figure 1 The water inlet channel 101 and the water outlet channel 105 in the valve body 1 are arranged parallel or similarly to parallel directions, and the valve cavity 11 and the valve port of the valve body 1 are arranged in the distribution direction of the transmission assembly, the drive member 54, and the energy storage member. In addition, the valve port is located on one side of the valve body 1, and the energy storage member and the drive member 54 are also located opposite the transmission assembly in this direction. This results in the transmission assembly and the valve body 1 being axially opposite, and the energy storage member and the drive member 54 being axially opposite or approximately opposite to the valve port. At the same time, the drive member 54 and the energy storage member are distributed along the circumference of the piston 3, utilizing the space around the periphery of the valve body 1, making the structural layout of the soft water valve more regular, thereby improving the compactness of the soft water valve, reducing the overall size of the soft water valve, and reducing the space occupied by the soft water valve. Among them, the drive member 54 and the energy storage member are arranged adjacent to each other in the circumferential direction, and the power transmission path between the drive member 54 and the energy storage member is shorter, the connection is more stable, and the line loss is reduced. Furthermore, the energy storage element and the driver 54 are located on the periphery of the transmission assembly and radially opposed to the transmission assembly. This indicates that the energy storage element and the driver 54 are also positioned on the periphery of the valve body 1 relative to the valve body 1. This facilitates heat dissipation from the energy storage element and the driver 54, preventing local overheating that could affect the operation of the soft water valve. Of course, in other embodiments, the driver 54 and the energy storage element may be located at radially opposite ends of the transmission assembly.

[0083] Regarding the connection method between the valve body 1 and the mounting seat 51, in one embodiment, please refer to Figure 1 、 Figure 6 and Figure 9 The valve body 1 is connected to the mounting base 51 via bolts. As will be appreciated, bolted connection not only provides excellent connection strength, ensuring a secure connection between the valve body 1 and mounting base 51 during long-term operation and preventing loosening due to vibration or pressure fluctuations, but also facilitates subsequent maintenance and replacement, improving the product's maintainability and service life. Of course, in other embodiments, the valve body 1 and mounting base 51 are pluggable and threaded for direct threaded connection.

[0084] Further, in this embodiment, please refer to Figure 6 and Figure 9 On the side of the valve body 1 that abuts the mounting seat 51, a plurality of nuts (not shown) are embedded at intervals along the periphery of the valve body 1. The mounting seat 51 is provided with connection holes 514 corresponding to the nuts. The connection holes 514 are for bolts to pass through, and the bolts (not shown) are connected to the nuts. Without loss of generality, at least one of the valve body 1 and the mounting seat 51 is provided with a flange at the periphery thereof, so as to be connected by bolts locked at the flange position. The mounting seat 51 can be provided with nuts embedded in the mounting seat 51, with the flange located at the periphery of the valve body 1. The bolts pass through the flange from the valve body 1 and are then screwed into the nuts within the mounting seat 51. Alternatively, the mounting seat 51 can be provided with nuts embedded in the periphery of the valve body 1, with the bolts passing through the mounting seat 51 and then screwed into the nuts on the valve body 1. Thus, for nuts embedded in the periphery of the valve body 1, by providing corresponding through-holes in the mounting seat 51, the assembly process is simplified and more efficient. Bolt tightening only needs to be performed from one side of the mounting seat 51, facilitating construction and subsequent maintenance. At the same time, it avoids the space occupied and cluttered appearance caused by exposed nuts, enhances the aesthetics and protection of the soft water valve, and reduces erosion or interference of the external environment on the bolts and nuts. The multiple nuts are evenly distributed along the periphery of the valve body 1, making the force applied to the connection between the valve body 1 and the mounting seat 51 more balanced, effectively improving the connection strength and sealing stability between the valve body 1 and the mounting seat 51, and preventing problems such as piston 3 displacement and valve chamber 11 leakage caused by uneven force. Of course, in other embodiments, the mounting seat 51 and the valve body 1 can also be provided with through holes along the axial direction, screws can be inserted through the through holes, and then nuts can be screwed on.

[0085] In one embodiment, please refer to Figure 6 and Figure 9The valve body 1 is connected to the side of the mounting seat 51 and is provided with a cavity opening (not shown) that is connected to the valve cavity 11. The mounting seat 51 is provided with a connecting column 515 protruding toward the valve body 1. The transmission component is movably inserted through the connecting column 515. The connecting column 515 is inserted into the cavity opening, and the outer periphery of the connecting column 515 abuts against the cavity wall of the valve cavity 11. The plug-in fit of the connecting column 515 and the cavity opening ensures the stability of the connection between the mounting seat 51 and the valve body 1. Combined with the abutment between the outer periphery of the connecting column 515 and the cavity wall of the valve cavity 11, the sealing of the valve opening connecting the mounting seat 51 to the valve cavity 11 is further guaranteed. At the same time, the transmission component is inserted through the connecting column 515, and the connecting column 515 provides a guiding support for the transmission component to slide in the axial direction, ensuring the stability of the transmission component pulling the piston 3 to slide in the axial direction. Without loss of generality, the connecting post 515 corresponds to the side of the mounting seat 51 facing away from the valve body 1, creating space for the transmission assembly to be installed. This allows the transmission assembly to be positioned closer to the valve cavity 11, improving the precision and response speed of the transmission assembly in pulling the piston 3 to slide. This also helps to reduce the size of the soft water valve and ease its installation difficulty. Of course, in other embodiments, the mounting seat 51 can also be sealed to the cavity opening, with a seal sandwiched between the periphery of the cavity opening and the mounting seat 51.

[0086] Further, in this embodiment, please refer to Figure 6 and Figure 9 The outer periphery of the connecting column 515 is concavely provided with a sealing ring groove 516, and the sealing ring groove 516 is provided with a sealing ring (not shown in the figure). The sealing ring abuts against the cavity wall of the valve cavity 11 at the notch of the sealing ring groove 516. It can be understood that the sealing ring is radially sandwiched between the connecting column 515 and the cavity wall of the valve cavity 11 to form a reliable dynamic sealing structure between the connecting column 515 and the valve body 1, reducing the probability of leakage of the valve cavity 11. The sealing ring groove 516 can not only stably accommodate the sealing ring to prevent it from displacement or falling off during assembly or operation, but also enhance the deformation compensation ability of the sealing ring when under pressure through a reasonable groove design, thereby improving the sealing effect and service life. At the same time, on the basis of the connecting column 515 being inserted into the cavity of the valve body 1 and realizing the positioning of the transmission assembly, the presence of the sealing ring further enhances the sealing performance between the valve body 1 and the mounting seat 51, ensuring that the soft water valve can operate stably in various working modes such as water purification, backwashing, and regeneration. Of course, in other embodiments, an annular groove may be provided in the cavity wall of the valve cavity 11 , and the sealing ring may be disposed in the annular groove and clamped between the valve cavity 11 and the connecting column 515 .

[0087] Regarding the structure of the transmission assembly, in one embodiment, please refer to Figure 4 and Figure 5The transmission assembly includes a transmission rod 53 and a transmission wheel 52. The transmission rod 53 is connected to the piston 3 and slidably penetrates the mounting seat 51. The transmission wheel 52 is rotationally connected to the mounting seat 51. The driving member 54 is drivingly connected to the transmission wheel 52. The transmission wheel 52 is sleeved on the transmission rod 53 and threadedly connected to the transmission rod 53. It can be understood that when the transmission wheel 52 rotates relative to the mounting seat 51, it also remains stable in the axial direction relative to the mounting seat 51. In the process of the driving member 54 driving the transmission wheel 52 to rotate, the self-locking and adjustable transmission process characteristics of the threaded transmission are utilized to cause the transmission rod 53 to slide and retract relative to the mounting seat 51, thereby pulling the piston 3 to slide back and forth within the valve chamber 11. This achieves efficient and accurate conversion of the rotational motion of the driving member 54 into the reciprocating sliding of the piston 3 along the axial direction, thereby improving the stability and control accuracy of power transmission. At the same time, the transmission rod 53 slides through the mounting seat 51 under the promotion of the threaded engagement of the transmission wheel 52. The mounting seat 51 provides support for the axial sliding of the transmission rod 53, ensuring the stability of the sliding of the transmission rod 53, ensuring the linearity and synchronization of the movement of the piston 3 in the valve chamber 11, and improving the response speed and reliability of the soft water valve when switching between different working states (such as water purification, backwashing, regeneration, etc.). Among them, the transmission wheel 52 is provided with an internal thread connected to the external thread on the transmission rod 53. The transmission wheel 52 can be configured as a coaxial wheel, with the outer periphery of one wheel body being rotatably connected to the mounting seat 51 and the outer periphery of the other wheel body being transmission-connected to the driving member 54. Alternatively, the inner periphery of the transmission wheel 52 has two sections, one section being provided with a threaded connection to the transmission rod 53 and the other section being rotationally connected to the mounting seat 51 via a bearing. At least, the transmission wheel 52 remains stable in the axial direction relative to the mounting seat 51. Of course, in other embodiments, the driving member 54 and the transmission rod 53 can also be directly coupled in a helical gear and worm gear manner.

[0088] Further, in this embodiment, please refer to Figure 4 and Figure 5The driving mechanism 5 also includes a stroke detection member 57 and a detection disk 56. The detection disk 56 has multiple detection parts 561 distributed along the circumference. The transmission wheel 52 includes a gear ring 522 and a mounting body 521. The gear ring 522 is arranged on the outer periphery of the mounting body 521. The transmission rod 53 is passed through the mounting body 521 and is threadedly connected to the mounting body 521. The mounting body 521 is rotatably connected to the mounting seat 51. The detection disk 56 is arranged on the outer periphery of the mounting body 521 and is spaced opposite to the gear ring 522. The stroke detection member 57 is connected to the mounting seat 51 to identify the detection part 561. It can be understood that during the rotation of the transmission wheel 52, the detection disk 56 and the transmission wheel 52 rotate synchronously. The stroke detection member 57 identifies the detection part 561 of the detection disk 56, and can determine the rotation position of the transmission wheel 52, and then determine the sliding position of the transmission rod 53, thereby obtaining the current position of the piston 3 in the valve chamber 11, and realizing real-time and accurate monitoring of the stroke state of the piston 3. In this way, the soft water valve can accurately grasp the rotation angle and displacement changes of the transmission assembly during operation, and then calculate the specific position of the piston 3 within the valve chamber 11, ensuring the accuracy and synchronization of the switching between different channels to connect to the valve chamber 11, and improving the intelligent level of system control. At the same time, the detection disk 56 is connected to the mounting body 521, fully utilizing the existing rotational motion characteristics of the transmission wheel 52, realizing the stroke feedback function without increasing additional space, further improving the space utilization and integration level of the drive mechanism 5. Among them, the axis of the mounting body 521 is set through, and the mounting body 521 is sleeved on the transmission rod 53 and threadedly connected to the transmission rod 53. Regarding the rotational connection between the mounting body 521 and the mounting seat 51, the inner periphery of the axis of the mounting body 521 can be rotated externally with the raised structure of the mounting seat 51, or the outer periphery of the mounting body 521 can be rotated internally with the recessed structure of the mounting seat 51. The mounting body 521 and the mounting seat 51 remain stable in the axial direction, thereby reducing the thickness of the drive mechanism 5. Of course, in other embodiments, the stroke detection member 57 may be provided on the structure in which the driving member 54 and the transmission wheel 52 are connected in transmission, or the stroke detection member 57 may directly detect the sliding position of the transmission rod 53 along the axial direction.

[0089] Regarding the installation method of the travel detection member 57, in this embodiment, please refer to Figure 1 and Figure 2The driving mechanism 5 further includes a connecting frame 55, which is connected to the mounting seat 51. A stroke detecting member 57 is connected to the connecting frame 55 and is located at the periphery of the detection disk 56. The detecting portion 561 is movably provided through the stroke detecting member 57. It can be understood that the stroke detecting member 57 is connected to the mounting seat 51 via the connecting frame 55 and can be located at the periphery of the detection disk 56. Correspondingly, the detecting portion 561 is located at the periphery of the detection disk 56 for identification by the stroke detecting member 57. In this way, the detecting portion 561 located at the periphery of the detection disk 56 has a longer rotation path during the rotation of the detection disk 56, thereby extending the time for the detecting portion 561 to movably pass through the stroke detecting member 57, thereby ensuring the reliability of the stroke detecting member 57 in identifying the detecting portion 561 and reducing the sensitivity requirement for the stroke detecting member 57. At the same time, the connecting frame 55 serves as a supporting structure to firmly position the stroke detection member 57 near the detection disk 56, ensuring that it can stably and accurately identify the multiple detection parts 561 distributed along the circumference of the detection disk 56, thereby providing real-time feedback on the stroke status of the piston 3. Among them, the connecting frame 55 can also be partially covered outside the transmission assembly and the detection disk 56 to protect the movement of the transmission assembly and the detection disk 56. The stroke detection member 57 is configured as a photoelectric sensor. Of course, in other embodiments, the stroke detection member 57 can also be connected to the mounting seat 51, and the detection head of the stroke detection member 57 can be set corresponding to the detection part 561 of the detection disk 56, so that the stroke detection member 57 can identify the detection part 561.

[0090] It can be understood that the piston 3 has a normal use state, such as the state when the valve chamber 11 is connected to the water inlet channel 101 and the water outlet channel 105, and in order to provide a detection basis for the stroke detection member 57, the piston 3 needs to have a zero point position. In one embodiment, please refer to Figure 1 and Figure 2The soft water valve is also provided with a reset detection member (not shown), and the piston 3 and the transmission rod 53 have an initial position. The reset detection member is arranged on the connecting frame 55, and the reset detection member is used to detect that the transmission rod 53 is in the initial position. It can be understood that the connecting frame 55 is fixed relative to the mounting base 51, and the reset detection member is arranged on the connecting frame 55, which can ensure that the transmission rod 53 can move relative to the reset detection member. In this way, the reset detection member is set to the initial position corresponding to the transmission rod 53, providing a calibration basis for the switching of the piston 3 to each water channel. In this way, after each working cycle (such as backwashing, regeneration, etc.) of the soft water valve is completed, the reset detection member can confirm whether the transmission assembly and the piston 3 have accurately returned to the set initial position through the reset detection member, ensuring that the starting point of the next round of operation is consistent, avoiding channel switching errors or control disorders caused by position offset or loss of step. At the same time, combined with the above-mentioned setting of the stroke detection member 57, the reset detection member also provides a zero point reference for the stroke detection member 57 to monitor the position of the piston 3 in real time, ensuring the reliability of the position monitoring of the piston 3. The reset detection element can be configured as a Hall sensor or a micro switch. After the transmission rod 53 slides to the initial position, the reset detection element can be activated, and the current position of the transmission rod 53 and the piston 3 is determined to be the initial position.

[0091] In one embodiment, please refer to Figure 3 and Figure 4 The connecting frame 55 is provided with a spacer cover outside the transmission wheel 52 and the detection disk 56. The connecting frame 55 is provided with an avoidance hole 551, and the transmission rod 53 is movably passed through the avoidance hole 551. It can be understood that the connecting frame 55 forms a protection for the transmission wheel 52 and the detection disk 56, reducing the probability of interference with the transmission wheel 52 and the detection disk 56. At the same time, the setting of the avoidance hole 551 ensures that the transmission rod 53 is not hindered by the connecting frame 55 during axial movement, thereby meeting the on-off adjustment control of each channel by the piston 3. Similarly, in one embodiment, please refer to Figure 2 and Figure 3A clearance opening 552 is provided on the circumferential side of the connecting frame 55, and the driving member 54 is provided with an output gear 544. The gear ring 522 meshes with the output gear 544 through the clearance opening 552. It can be understood that the avoidance hole 551 is located on the side wall of the connecting frame 55 distributed along the axial direction, and the clearance opening 552 is located on the side wall of the connecting frame 55 distributed along the circumferential direction. When the connecting frame 55 is covered on the outer periphery of the transmission wheel 52 and the detection disk 56, the clearance opening 552 avoids the obstruction of the connecting frame 55 on the connection between the transmission wheel 52 and the output gear 544, ensuring smooth meshing and stable transmission between the output gear 544 and the gear ring 522, thereby ensuring that the power of the driving member 54 can be efficiently and accurately transmitted to the transmission assembly, driving the piston 3 to achieve reciprocating motion. In addition, the meshing of the output gear 544 and the gear ring 522 by the clearance opening 552 also helps provide a positioning reference for the installation of the connecting frame 55, ensuring that the travel detection member 57 and the reset detection member on the connecting frame 55 are installed in the predetermined positions, thereby reducing the difficulty of assembling the drive mechanism 5. The connecting frame 55 is connected to the mounting base 51 by screws.

[0092] Regarding the passage in the valve body 1 communicating with the valve cavity 11, in one embodiment, please refer to Figures 7 to 11 The multiple channels include an inlet channel 101, a side wall channel 102, a sewage channel 103, a central channel 104, a water outlet channel 105 and a salt absorption and water injection channel. The soft water valve also includes a grid assembly 2 provided in the valve chamber 11. The grid assembly 2 divides the valve chamber 11 into multiple water passage chambers 111 in sequence along its axial direction. The multiple 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, and a sewage passage 114 communicating with the sewage passage 103. The cavity 114, the central cavity 115 communicating with the central channel 104, the water outlet cavity 116 communicating with the water outlet channel 105, and the water injection and salt absorption cavity 117 communicating with the salt absorption and injection channel, the water inlet cavity 112, the side wall cavity 113, the sewage discharge cavity 114, the central cavity 115, the water outlet cavity 116, and the water injection and salt absorption cavity 117 are sequentially arranged along the axial direction of the valve cavity 11. The soft water valve has multiple water path modes, and the piston 3 moves along the axial direction of the valve cavity 11 to switch the soft water valve between the multiple water path modes. Optionally, the grille assembly 2 includes a plurality of spaced support retaining rings 24, the outer peripheries of the plurality of support retaining rings 24 abutting the inner periphery of the valve cavity 11, the inner peripheries of the support retaining rings 24 abutting the piston 3, and a water flow cavity 111 is formed between two adjacent support retaining rings 24.

[0093] This piston-type water softener has a larger flow rate and higher water softening efficiency, making it easier to achieve the design goals of small size, large flux, high water production, and high salt efficiency. Furthermore, this piston-type water softener has a long service life. The piston 3 is inserted into the inner periphery of the grille assembly 2, and the outer periphery of the piston 3 is in sealing contact with the inner periphery of the grille assembly 2, that is, the outer periphery of the piston 3 is in sealing contact with the inner periphery of the support ring 24, thereby cutting off the communication between two adjacent water passage chambers 111. The piston 3 is generally provided with multiple water passage positions. When the piston 3 moves to a certain position, at least one of the multiple support rings 24 is positioned relative to the water passage position of the piston 3, thereby forming a water passage gap between the inner periphery of the support ring 24 and the water passage position of the piston 3, thereby achieving communication between the water passage chambers 111 on both sides of the support ring 24. Thus, through the movement of the piston 3, communication is established between the different water passage chambers 111, thereby controlling the direction of water flow and forming corresponding waterways.

[0094] The water inlet chamber 112 can be connected to the water inlet channel 101, which is used to connect to the external water inlet pipe to supply raw water to the soft water valve; the side wall chamber 113 is connected to the soft water tank 200 through the side wall channel 102; the sewage chamber 114 is connected to the external sewage pipe through the sewage channel 103, so as to discharge the waste water in the water softener; the central chamber 115 is connected to the soft water tank 200 through the central channel 104; the water outlet chamber 116 is connected to the external water outlet pipe through the water outlet channel 105, and can discharge the produced soft water; the water injection and salt absorption chamber 117 is connected to the salt box 300 through the water injection and salt absorption channel 106, so as to realize water injection into the salt box 300 and pass the salt water in the salt box 300 into the soft water tank 200, so as to realize the regeneration of the soft water medium in the soft water tank 200.

[0095] Reference Figures 9 to 11 The water inlet chamber 112 and the water outlet chamber 116 are both connected to the external pipeline, but are not connected to the soft water tank 200, while the side wall chamber 113 and the central chamber 115 are both connected to the soft water tank 200. Therefore, the water inlet chamber 112 and the water outlet chamber 116 can be connected to the soft water tank 200 by means of the side wall chamber 113 and the central chamber 115. Therefore, the side wall chamber 113 is adjacent to the water inlet chamber 112, so that the water inlet chamber 112 is connected to the soft water tank 200 through the side wall chamber 113, and the two are adjacent to each other, thereby shortening the flow path of the raw water flowing into the soft water tank 200, thereby simplifying the water path in the soft water valve; the central chamber 115 is adjacent to the water outlet chamber 116, so that the water outlet chamber 116 is connected to the soft water tank 200 through the central chamber 115, and the two are adjacent to each other, thereby shortening the flow path of the softened soft water flowing out of the soft water tank 200, thereby simplifying the water path in the soft water valve.

[0096] When the softened soft water in the soft water tank 200 flows out of the soft water valve, part of the soft water can flow into the water absorption and salt injection chamber, thereby injecting water into the salt tank 300. Therefore, the water injection and salt absorption chamber 117 is adjacent to the side of the water outlet chamber 116 away from the central chamber 115, so that when the soft water flows through the water outlet chamber 116, part of the soft water can flow directly from the water outlet chamber 116 to the water injection and salt absorption chamber 117. Compared with the water injection and salt absorption chamber 117 being separated from the water outlet chamber 116 and the two being connected by a special flow channel, this solution can effectively shorten the flow path of the soft water flowing into the salt tank 300, thereby further optimizing the water path of the soft water valve, and no additional special flow channel is required, which helps to reduce the volume of the soft water valve.

[0097] 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 is provided with a water passage 311 that passes through both ends, and the water level on the outer periphery of the piston 3 includes a first water ring groove 312 provided on the outer periphery of the first piston body 31 and a second water ring groove 321 provided on the outer periphery of the second piston body 32.

[0098] See also Figure 9 、 Figure 11 and Figure 12 In an embodiment of the present invention, the multiple waterway modes include a water production mode. In the water production mode, the water inlet chamber 112 is connected to the side wall chamber 113 through the first water ring groove 312, and 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. 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 salt absorption chamber 117. Raw water flows into the water inlet chamber 112 through the water inlet channel 101, and then flows into the soft water tank 200 through the side wall chamber 113 and the side wall channel 102 in sequence, and is softened. The softened soft water flows out of the soft water valve in sequence through the central channel 104, the central chamber 115, the water outlet chamber 116, and the water outlet channel 105. Please refer to Figure 12 , Figure 12 This is a simplified structural diagram of the water softening valve in the water production mode. The direction indicated by the arrow in the figure is the water flow direction of the water softening valve in the water production mode.

[0099] See also Figure 9 、 Figure 11 and Figure 13In an embodiment of the present invention, the multiple water channel 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 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 salt absorption chamber 117 through the second water ring groove 321. The outer periphery of the first piston body 31 blocks the sewage discharge chamber 114; the raw water flows into the water inlet chamber 112 through the water inlet channel 101, and passes through the side wall chamber 113 and the side wall channel in sequence. 102, flows into the soft water tank 200 for softening; the softened soft water flows into the water outlet chamber 116 in sequence through the central channel 104 and the central cavity 115, and then part of the soft water flows out of the soft water valve through the water outlet channel 105, and the other part of the soft water flows into the water injection and salt absorption chamber 117, and then injects water into the salt tank 300 through the water injection and salt absorption channel 106; in this way, on the one hand, the preparation of soft water can be continuously realized when injecting water into the salt tank 300, and on the other hand, the water entering the salt tank 300 is softened soft water, which can reduce the consumption of salt in the salt tank 300. Figure 13 , Figure 13 The simplified structural diagram of the water softening valve in the water injection mode is shown in FIG. 1 , where the direction indicated by the arrow is the water flow direction of the water softening valve in the water injection mode.

[0100] See also Figure 7 、 Figure 9 and Figure 12 In an embodiment of the present invention, the multiple water channel modes include a forward wash mode. In the forward wash mode, the water inlet chamber 112 communicates with the side wall chamber 113 and the water outlet channel 105 through the water passage 311. The central chamber 115 communicates with the sewage chamber 114 through the first water 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 water inlet chamber 112 through the water inlet channel 101. A portion of it flows to the water outlet chamber 116 through the water passage 311 and is discharged from the soft water valve through the water outlet channel 105. The other 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 cleaned sewage is discharged from the soft water valve in sequence through the central channel 104, the central chamber 115, the sewage chamber 114, and the sewage passage 103. Please refer to Figure 14 , Figure 14 This is a simplified structural diagram of the soft water valve in the forward flushing mode. The direction indicated by the arrow in the figure is the water flow direction of the soft water valve in the forward flushing mode.

[0101] See also Figure 9 、 Figure 11 and Figure 15In an embodiment of the present invention, the multiple water channel modes include a backwash mode. In the backwash mode, the water inlet chamber 112 is connected to the water outlet channel 105 through the water flow channel 311, the side wall chamber 113 is connected to the sewage discharge chamber 114 through the first water flow ring groove 312, and 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. The outer periphery of the second piston body 32 blocks the water injection and salt absorption chamber 117; raw water flows into the water inlet chamber 112 through the water inlet channel 101 and flows to the water outlet chamber 116 through the water flow channel 311, and then a part of it is discharged from the soft water valve through the water outlet channel 105; the other part flows to the central chamber 115 and flows into the soft water tank 200 through the central channel 104 to clean the soft water tank 200. The cleaned sewage is discharged from the soft water valve through the side wall channel 102, the side wall chamber 113, the sewage discharge chamber 114 and the sewage discharge channel 103 in sequence. Please refer to Figure 15 , Figure 15 This is a simplified structural diagram of the soft water valve in backwash mode. The direction indicated by the arrow in the figure is the water flow direction of the soft water valve in backwash mode.

[0102] 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 provided between the water inlet chamber 112 and the side wall chamber 113, and the second jet channel is provided between the central chamber 115 and the water outlet chamber 116. The soft water valve also includes an ejector 4 and a plug. One of the ejector 4 and the plug is provided in the first jet channel, and the other is provided in the second jet channel. One end of the bypass channel 14 is connected to the water injection and salt absorption chamber 117, and the other end is connected to both the first jet channel and the second jet channel.

[0103] See also Figure 9 、 Figure 11 and Figure 16 In an embodiment of the present invention, the multiple water channel modes include a downstream regeneration mode. In the downstream regeneration mode, the ejector 4 is provided in the first jet channel, and the second jet channel is blocked by a plug, so that the central cavity 115 and the water outlet cavity 116 cannot be connected to the bypass channel 14. The water inlet cavity 112 is connected to the water outlet channel 105 through the water passage 311. The water 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 annular groove 321. The central cavity 115 is connected to the sewage discharge cavity 114 through the first water passage annular groove 312. The side wall cavity 113 is blocked by the outer periphery of the first piston body 31.

[0104] The salt water in the salt tank 300 flows into the bypass channel 14 in sequence through the water injection and salt absorption channel 106 and the water injection and salt absorption chamber 117. The raw water flows into the water inlet chamber 112 through the water inlet channel 101. A portion of it can flow to the water outlet chamber 116 through the water flow channel 311 and discharge from the soft water valve through the water outlet channel 105. The other portion flows to the first jet channel, so that the ejector 4 absorbs the salt water from the salt tank 300 through the bypass channel 14 and then flows into the soft water tank 200 in sequence through the side wall chamber 113 and the side wall channel 102, thereby regenerating the soft water medium in the soft water tank 200. The regenerated wastewater is discharged from the soft water valve in sequence through the central channel 104, the central chamber 115, the sewage chamber 114 and the sewage channel 103. Figure 16 , Figure 16 This is a simplified structural diagram of the soft water valve in the downstream regeneration mode. The direction indicated by the arrow in the figure is the water flow direction of the soft water valve in the downstream regeneration mode.

[0105] See also Figure 9 、 Figure 11 and Figure 17 In an embodiment of the present invention, the multiple water channel modes include a countercurrent regeneration mode. In the countercurrent regeneration mode, the first jet channel is blocked by a plug so that the water inlet chamber 112 and the side wall chamber 113 cannot be connected to the bypass channel 14. The ejector 4 is provided in the second jet channel. The water inlet chamber 112 is connected to the water outlet channel 105 through the water passage 311. The water outlet chamber 116 and the central 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 annular groove 321. The side wall chamber 113 is connected to the sewage discharge chamber 114 through the first water passage annular groove 312. The central chamber 115 is blocked by the outer periphery of the first piston body 31.

[0106] The salt water in the salt tank 300 flows into the bypass channel 14 in sequence through the water injection and salt absorption channel 106 and the water injection and salt absorption chamber 117. The raw water flows into the water inlet chamber 112 through the water inlet channel 101 and flows to the water outlet chamber 116 through the water flow channel 311. A portion of the raw water can be discharged from the softening valve through the water outlet channel 105. The other portion flows to the second jet channel, so that the ejector 4 absorbs the salt water from the salt tank 300 through the bypass channel 14 and then flows into the softening tank 200 in sequence through the central chamber 115 and the central channel 104, thereby regenerating the softening medium in the softening tank 200. The regenerated wastewater is discharged from the softening valve in sequence through the side wall channel 102, the side wall chamber 113, the sewage chamber 114, and the sewage channel 103. Figure 17 , Figure 17 This is a simplified structural diagram of the soft water valve in the countercurrent regeneration mode. The direction indicated by the arrow in the figure is the water flow direction of the soft water valve in the countercurrent regeneration mode.

[0107] In one embodiment, please refer to Figure 20 and Figure 21The grille assembly 2 includes a plurality of grille units 21 sequentially spliced and arranged along the axial direction of the valve chamber 11, and an outer sealing ring groove 211 for installing the outer sealing ring 22 is spliced between two adjacent grille units 21; the grille assembly 2 has a pre-installed state, in which a widened gap 212 can be formed between two adjacent grille units 21, and the width of the widened gap 212 is smaller than the cross-sectional diameter of the outer sealing ring 22;

[0108] When the opening of the valve cavity 11 is in an open state, the grille assembly 2 is installed to the valve cavity 11 in a pre-installed state, widening the gap 212 and widening the outer sealing ring groove 211 to provide a larger deformation space for the outer sealing ring 22; when the mounting seat 51 covers the opening of the valve cavity 11, the mounting seat 51 abuts against the grille assembly 2 to eliminate the widened gap 212, so that the outer sealing ring 22 abuts against the cavity wall of the valve cavity 11.

[0109] Specifically, multiple grille units 21 are spliced together in sequence. To facilitate the assembly of the grille assembly 2, during actual assembly, the grille units 21 are often spliced together first, and then the grille assembly 2 is installed as a whole into the valve cavity 11. That is, the multiple grille units 21 and the outer sealing ring 22 are assembled first, and then the grille assembly 2 is installed into the valve cavity 11. Therefore, if the multiple grille units 21 are directly spliced into place, 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 usually adopt an interference fit. As a result, when the grille assembly 2 is actually installed, the friction between the outer sealing ring 22 and the cavity wall of the valve cavity 11 is relatively large, making it difficult to insert the grille assembly 2 into the valve cavity 11. It is also easy to cause the outer sealing ring 22 to shift, which increases the difficulty of installing the grille assembly 2.

[0110] The grille assembly 2 in the present scheme is installed into the valve cavity 11 in a pre-installed state. The existence of the widened gap 212 can further increase 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, thereby reducing the friction between the outer sealing ring 22 and the cavity wall of the valve cavity 11 during assembly, making it easier for the grille assembly 2 to be installed into the valve cavity 11, and reducing the probability of the outer sealing ring 22 falling out of the outer sealing ring groove 211; and the existence of the widened gap 212 can also further increase the radial depth of the outer sealing ring groove 211 along the valve cavity 11, thereby allowing more of the outer sealing ring 22 to be installed into the outer sealing ring groove 211, which 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, thereby further facilitating the grille assembly 2 to be installed 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 being stuck in the widened gap 212 while reducing the difficulty of installing the grille assembly 2 .

[0111] When the mounting seat 51 covers the cavity opening of the valve cavity 11, the mounting seat 51 abuts against the grille assembly 2, so that under the pressing action of the mounting seat 51, the widened gap 212 is eliminated, and the depth and width of the outer sealing ring groove 211 are reduced, so that the two adjacent grille units 21 can clamp the sealing ring groove 516 together, and the outer sealing ring 22 can be pressed against the cavity wall of the valve cavity 11, thereby facilitating the installation of the grille assembly 2 and ensuring the sealing strength between the grille assembly 2 and the cavity wall of the valve cavity 11.

[0112] In one embodiment, please refer to Figure 16 and Figure 17 The piston 3 includes a first piston 33 and a second piston 34, both of which are provided with a first water-passing annular groove 312. The axial position of the first water-passing annular groove 312 on the first piston 33 is different from the axial position of the second piston 34. Either the first piston 33 or the second piston 34 is installed in the grille assembly 2.

[0113] The various water channel modes include a regeneration water channel mode. When the first piston 33 is installed in the grille assembly 2, in the regeneration water channel mode, the first water ring groove 312 connects the central cavity 115 and the sewage cavity 114 to achieve downstream regeneration; when the second piston 34 is installed in the grille assembly 2, in the regeneration water channel mode, the first water ring groove 312 connects the side wall cavity 113 and the sewage cavity 114 to achieve countercurrent regeneration.

[0114] That is, the soft water valve in this solution can be either a downstream regeneration valve or a reverse flow regeneration valve. From the structural perspective of the soft water valve, the downstream regeneration valve and the reverse flow regeneration valve only have different structures of the first piston 33 and the second piston 34, while the valve body 1, the grid assembly 2 and other structures are exactly the same. That is, the downstream regeneration valve and the reverse flow regeneration valve can share structures such as the valve body 1 and the grid assembly 2. Therefore, in actual production, the downstream 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, which helps to save the processing cost of the soft water valve. The only difference between the first piston 33 and the second piston 34 is that the axial position of the first water ring groove 312 on the first piston 33 is different from the axial position on the second piston 34, that is, the partial water flow levels on the first piston 33 and the second piston 34 are different. Therefore, during the actual production of the piston 3, only the position of the first water ring groove 312 needs to be adjusted to simultaneously process the downstream regeneration valve and the reverse regeneration valve. Compared with the prior art, the structures of the downstream regeneration valve and the reverse regeneration valve are processed separately and then assembled separately. This solution not only improves the processing efficiency, but also saves the cost of a set of molds, thereby reducing the cost of the soft water valve.

[0115] Please refer to Figures 18 to 20In one embodiment, the valve body 1 is provided with a soft tank interface 161, which includes sidewall channels 102 and a central channel 104, both of which communicate with the valve cavity 11. The valve body 1 comprises a valve body 15 and a valve base 16, which are assembled into separate parts. The soft tank interface 161 is provided on the valve base 16. The valve body 15 is provided with a first dividing rib 151 on one side near the valve base 16, which cooperates with the grille assembly 2 to separate multiple water passage chambers 111. The valve base 16 is provided with 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, which are radially opposed to each other in the valve cavity 11. The grille assembly 2 is in sealing contact with 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.

[0116] The soft tank interface 161 is provided on the valve base 16 and is used to connect to the soft water tank 200. Therefore, the side wall channel 102 and the central channel 104 are both provided on the valve base 16. The first jet channel, the second jet channel, the water inlet channel 101, the water 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 water inlet channel 101, the water 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 water inlet channel 101, the water outlet channel 105 and the water injection and salt absorption channel 106 can be only partially arranged on the valve body 15, and the other part is formed by splicing the valve body 15 and the valve base 16 and / or arranged on the valve base 16; or, the first jet channel, the second jet channel, the water inlet channel 101, the water outlet channel 105 and the water injection and salt absorption channel 106 are all formed by splicing the valve body 15 and the valve base 16; or, the first jet channel, the second jet channel, the water inlet channel 101, the water outlet channel 105 and the water injection and salt absorption channel 106 are all arranged on the valve base 16. In addition, the valve body 15 is provided with a first dividing rib 151 on the side close to the valve base 16 for separating a plurality of water flow chambers 111, and the first rib surface 1511 of the dividing rib abuts against the grille assembly 2, that is, each first dividing rib 151 abuts against a corresponding supporting retaining ring 24 of the grille assembly 2, so that the outer periphery of the grille assembly 2 only abuts against the valve body 15, thereby eliminating the influence of the abutment between the outer periphery of the grille assembly 2 and the inner periphery of the valve cavity 11 on the splicing of the valve body 15 and the valve base 16, reducing the probability of cracking at the splicing of the valve body 15 and the valve base 16, that is, reducing the probability of the valve body 1 being expanded and bursting, thereby improving the service life of the soft water valve; in addition, the fixed connection between the second dividing 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, so as to further reduce the probability of the valve body 1 being expanded and bursting, thereby improving the service life of the soft water valve.

[0117] Optionally, the joint surface between the valve body 15 and the valve seat 16 passes through the bypass flow channel 14 to facilitate the formation of the bypass flow channel 14 .

[0118] Optionally, the valve body 1 is further provided with a mixing water channel, one end of which is connected to the water inlet chamber 112 and / or the water inlet channel 101, and the other end is connected to the water outlet chamber 116 and / or the water outlet channel 105; the soft water valve also includes a mixing water valve provided corresponding to the mixing water channel; thus, in the water production mode, when the mixing water valve is opened, a portion of the raw water can flow directly from the water inlet channel 101 and / or the water inlet chamber 112 through the mixing water channel into the water outlet chamber 116 and / or the water outlet channel 105, thereby mixing with the softened soft water (sodium ions will increase during the softening process), and then being delivered to the external water outlet pipe to reduce the phenomenon of excessive sodium ions, thereby meeting the low concentration requirements of sodium ions in certain regions (such as Europe). Optionally, the joint surface between the valve body 15 and the valve base 16 passes through the mixing water channel to facilitate the formation of the mixing water channel.

[0119] The present invention also proposes a water softener, which includes a water softener valve. The specific structure of the water softener refers to the above embodiment. Since this water softener adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0120] The above are merely exemplary embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent structural transformations made using the contents of the present invention's description and drawings, or direct / indirect applications in other related technical fields within the technical concept of the present invention are included in the scope of protection of the present invention.

Claims

1. A soft water valve, characterized in that: include: a valve body, the valve body being provided with a piston and a valve cavity connected to a plurality of channels, the piston being slidably disposed in the valve cavity to switch the channels connected to the valve cavity; as well as The driving mechanism includes a mounting seat, a transmission assembly and a driving member, the mounting seat is connected to the valve body, the transmission assembly is movably arranged on the mounting seat and is transmission-connected to the piston, the mounting seat is recessed to form a first mounting groove from the side away from the valve body toward the side connected to the valve body, the driving member is at least partially installed in the first mounting groove, and the driving member is drivingly connected to the transmission assembly.

2. The soft water valve according to claim 1, characterized in that The driving member is located outside the transmission assembly along the radial direction of the piston.

3. The soft water valve according to claim 1, characterized in that The valve body is connected to the side of the mounting seat and is provided with a cavity opening connected to the valve cavity. The mounting seat is provided with a connecting column protruding toward the valve body. The transmission assembly is movably passed through the connecting column, and the connecting column is inserted into the cavity opening. The outer periphery of the connecting column abuts against the cavity wall of the valve cavity.

4. The soft water valve according to claim 3, characterized in that A sealing ring groove is concavely formed on the outer circumference of the connecting column. A sealing ring is provided in the sealing ring groove. The sealing ring abuts against the cavity wall of the valve cavity at the notch of the sealing ring groove.

5. The soft water valve according to claim 1, characterized in that A plurality of supporting protrusions are distributed around the periphery of the first mounting groove. The driving member includes a driving body and an output part that are connected to each other. The output part is driven and connected to the transmission assembly. The radial dimension of the output part is larger than the radial dimension of the driving body. The driving body is installed in the first mounting groove, and the output part abuts against the supporting protrusion.

6. The soft water valve according to claim 5, characterized in that A support column is provided on a side of the mounting seat away from the valve body, and a connecting lug is provided on the periphery of the output portion, and the connecting lug is connected to the support column.

7. The soft water valve according to claim 1, characterized in that The mounting seat is further provided with a second mounting groove from the side away from the valve body toward the side connected to the valve body. The driving mechanism further includes an energy storage component, which is at least electrically connected to the driving component and is mounted in the second mounting groove.

8. The soft water valve according to claim 7, characterized in that The valve body is provided with a valve port in the radial direction. On one side of the valve body where the valve port is provided, the energy storage component and the driving component are arranged opposite to the transmission assembly. The driving component and the energy storage component are distributed along the circumference of the piston.

9. The soft water valve according to claim 1, characterized in that The valve body is connected to the mounting seat by means of bolt locking.

10. The soft water valve according to claim 9, characterized in that On the side where the valve body abuts against the mounting seat, a plurality of nuts are embedded at intervals on the periphery of the valve body. The mounting seat is provided with connecting holes corresponding to the nuts. The connecting holes are for bolts to pass through until the bolts are connected to the nuts.

11. The soft water valve according to claim 1, characterized in that The transmission assembly includes a transmission rod and a transmission wheel. The transmission rod is connected to the piston and is slidably inserted into the mounting seat. The transmission wheel is rotatably connected to the mounting seat. The driving member is drivingly connected to the transmission wheel. The transmission wheel is sleeved on the transmission rod and threadedly connected to the transmission rod.

12. The soft water valve according to claim 11, characterized in that The driving mechanism further includes a stroke detection member and a detection disk, the detection disk having a plurality of detection portions distributed along the circumference, the transmission wheel including a gear ring and a mounting body, the gear ring being arranged on the outer circumference of the mounting body, the transmission rod passing through the mounting body and being threadedly connected to the mounting body, and the mounting body being rotatably connected to the mounting seat; The detection disc is arranged on the outer periphery of the mounting body and is spaced apart and opposite to the gear ring. The stroke detection member is connected to the mounting seat to identify the detection part.

13. The soft water valve according to claim 12, characterized in that The driving mechanism further includes a connecting frame connected to the mounting seat. The stroke detecting member is connected to the connecting frame and is located at the periphery of the detection disk. The detecting portion is movably arranged through the stroke detecting member.

14. The soft water valve according to claim 13, characterized in that The soft water valve is further provided with a reset detection member, the piston and the transmission rod have initial positions, the reset detection member is provided on the connecting frame, and the reset detection member is used to detect that the transmission rod is located at the initial position.

15. The soft water valve according to claim 13, wherein: The connecting frame spacer cover is arranged outside the transmission wheel and the detection plate, and the connecting frame is provided with an avoidance hole, and the transmission rod is movably inserted into the avoidance hole; And / or, a clearance opening is provided on the peripheral side of the connecting frame, the driving member is provided with an output gear, and the gear ring is engaged with the output gear through the clearance opening.

16. The water softener valve according to any one of claims 1 to 15, characterized in that: The plurality of channels include a water inlet channel, a side wall channel, a sewage discharge channel, a central channel, a water outlet channel and a salt absorption and water injection channel; The soft water valve further includes a grille assembly provided in the valve cavity, the grille assembly sequentially dividing the valve cavity into a plurality of water passage chambers along its axial direction, the plurality of water passage chambers including a water inlet chamber communicating with the water 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, a water outlet chamber communicating with the water outlet channel, and a water injection and salt absorption chamber communicating with the salt absorption and injection channel, the water inlet chamber, the side wall chamber, the sewage discharge chamber, the central chamber, the water outlet chamber, and the water injection and salt absorption chamber being sequentially provided along the axial direction of the valve cavity; The soft water valve has multiple water path modes, and the piston moves along the axial direction of the valve cavity to switch the soft water valve between the multiple water path modes.

17. The water softening valve according to claim 16, wherein: The grille assembly includes a plurality of grille units sequentially spliced and arranged along the axial direction of the valve cavity, with an outer sealing ring groove for mounting an outer sealing ring formed between two adjacent grille units; the grille assembly has a pre-installed 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 mounting seat covers the opening of the valve cavity. When the opening of the valve cavity is in an open state, the grille assembly is mounted to the valve cavity in the pre-installed state. The widened gap widens the outer sealing ring groove to provide a larger deformation space for the outer sealing ring. When the mounting seat covers the cavity opening of the valve cavity, the mounting seat abuts against the grid assembly to eliminate the widened gap, so that the outer sealing ring abuts against the cavity wall of the valve cavity.

18. The water softening valve according to claim 16, wherein: 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 of the first water-passing ring groove on the second piston. Either the first piston or the second piston is installed in the grille assembly. The multiple water channel modes include a regeneration water channel mode. When the first piston is installed in the grille assembly, in the regeneration water channel mode, the first water ring groove connects the central cavity and the sewage discharge cavity to achieve downstream regeneration; when the second piston is installed in the grille assembly, in the regeneration water channel mode, the first water ring groove connects the side wall cavity and the sewage discharge cavity to achieve countercurrent regeneration.

19. The water softening valve according to claim 16, wherein: The valve body is provided with a soft tank interface, and the soft tank interface is provided with the side wall channel and the central channel both of which are connected to the valve cavity. The valve body includes a valve body and a valve base that are spliced together. The soft tank interface is provided on the valve base. The valve body is provided with a first dividing rib on the side close to the valve base, which cooperates with the grille assembly to separate a plurality of water flow cavities. The valve base is provided with 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 opposite in the radial direction of the valve cavity. The grille assembly is sealed and abutted against the first rib surface, and the second dividing rib is fixedly connected to the second rib surface.

20. A water softener, characterized in that: The invention comprises a soft water valve according to any one of claims 1 to 19.

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