Water softening valve and water softener

Abstract

The invention discloses a water softening valve and a water softener, and the water softening valve comprises a valve body provided with a valve cavity; the grating assembly is arranged in the valve cavity so that the valve cavity can be sequentially divided into a plurality of water passing cavities in the axial direction of the valve cavity. The water softening valve comprises a valve cavity and a grating assembly, the piston is arranged in the grating assembly, the water softening valve has multiple water way modes, and the piston moves in the axial direction of the valve cavity so that the water softening valve can be switched among the multiple water way modes; the valve body is further provided with a plurality of channels communicated with the valve cavity, and the multiple channels are arranged transversely and / or downwards. According to the technical scheme, the large-flow requirement of the water softener can be met.

Description

Technical Field

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

[0002] A water softener can soften water, thereby improving user experience and saving detergent and water. The core component of a water softener is the water softener valve. In related technologies, the water softener valve and its connected water path components occupy a large space within the water softener, resulting in a typically small valve body that is unable to meet the high flow requirements of the water softener. Summary of the Invention

[0003] The main purpose of the present invention is to provide a water softener valve, which is intended to meet the large flow requirements of a water softener.

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

[0005] A valve body, provided with a valve cavity;

[0006] a grid assembly, disposed in the valve cavity, to sequentially divide the valve cavity into a plurality of water passage cavities along its axial direction; and

[0007] a piston disposed in the grille assembly, the soft water valve having a plurality of water path modes, the piston moving along the axial direction of the valve cavity to switch the soft water valve between the plurality of water path modes;

[0008] The valve body is further provided with a plurality of channels communicating with the valve cavity, and the plurality of channels are arranged laterally and / or downwardly.

[0009] In one embodiment, the multiple channels include a water inlet channel, a side wall channel, a central channel, a water outlet channel, a sewage discharge channel and a salt absorption and injection channel; the multiple water passage chambers include a water inlet chamber connected to the water inlet channel, a side wall chamber connected to the side wall channel, a sewage discharge chamber connected to the sewage discharge channel, a central chamber connected to the central channel, a water outlet chamber connected to the water outlet channel, and a water injection and salt absorption chamber connected to 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 are arranged in sequence along the axial direction of the valve chamber.

[0010] In one embodiment, the valve body is provided with a downwardly disposed soft tank interface, and the side wall channel and the central channel are provided in the soft tank interface.

[0011] In one embodiment, the water inlet channel, the water outlet channel, the sewage discharge channel and the salt absorption and water injection channel are all arranged in a transverse direction.

[0012] In one embodiment, the water inlet channel, the sewage discharge channel and the water outlet channel are all located on one lateral side of the valve body, and the salt absorption and water injection channel is located on the other lateral side of the valve body.

[0013] In one embodiment, the drain channel is located between the water inlet channel and the water outlet channel, and the drain channel is lower than the water inlet channel and the water outlet channel.

[0014] In one embodiment, upper end surfaces of the water inlet channel and the water outlet channel are not higher than the upper end surface of the valve body.

[0015] In one embodiment, the plurality of channels further include a jet channel, the jet channel being provided between the water inlet cavity and the side wall cavity, and / or between the central cavity and the water outlet cavity; the soft water valve further includes an ejector provided in the jet channel;

[0016] The jet channel and the salt absorption and water injection channel are located on the same side of the valve body.

[0017] In one embodiment, a water inlet connector is provided at the channel opening of the water inlet channel, and the water inlet connector is bent and extended downward; and / or

[0018] The outlet of the water outlet channel is provided with a water outlet joint, and the water outlet joint is bent and extended downward; and / or

[0019] A salt box joint is provided at the channel opening of the salt absorption and water injection channel, and the salt box joint is bent and extended downward.

[0020] In one embodiment, the passage is perpendicular to the axis of the valve cavity.

[0021] In one embodiment, the diameter of the valve cavity is greater than or equal to 66 mm; and / or, a plug cavity for movably mounting the piston is provided in the grid assembly, and the diameter of the plug cavity is greater than or equal to 32 mm.

[0022] In one embodiment, 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;

[0023] The soft water valve also includes a drive mounting seat that covers the valve cavity opening; when the valve cavity opening is in an open state, the 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 drive mounting seat covers the valve cavity opening, the drive 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.

[0024] 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.

[0025] 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.

[0026] In one embodiment, 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, and the valve body is provided with a first dividing rib on a side close to the valve base, which cooperates with the grille assembly to separate a plurality of the water flow chambers. The valve base is provided with a second dividing rib corresponding to each of the first dividing ribs, and the first dividing rib has a first rib surface and a second rib surface that are opposite to each other 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.

[0027] The present invention also provides a water softener, comprising the aforementioned water softening valve.

[0028] In one embodiment, the water softener further comprises a display screen, and the display screen is located on a lateral side of the water softening valve.

[0029] The technical solution of the present invention configures the multiple channels of the valve body to be arranged horizontally and / or downwardly, so that the multiple channels of the valve body are not arranged upwardly, thereby avoiding the need for other water path components of the water softener to be connected to the channels of the valve body through the top of the valve body, thereby avoiding such a connection method from increasing the height of the water softener. In this way, even if the volume of the valve body is increased, the space occupied by the soft water valve and the water path components connected thereto in the water softener will not be too large. Therefore, the technical solution of the present invention enables the volume of the valve body to be made larger, that is, a larger valve cavity can be obtained, thereby increasing the flow rate of the soft water valve, which is conducive to meeting the large flow rate requirements of the water softener. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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.

[0031] Figure 1 This is a schematic structural diagram of an embodiment of a water softener of the present invention;

[0032] Figure 2 for Figure 1 A schematic diagram of the structure of the soft water valve of the medium water softener from one angle;

[0033] Figure 3 for Figure 1 Another angle diagram of the structure of the water softener's soft water valve;

[0034] Figure 4 for Figure 3 Cross-sectional view of the medium soft water valve along AA;

[0035] Figure 5 for Figure 1 Another structural diagram of the water softener's water softener valve from another angle;

[0036] Figure 6 for Figure 5 Cross-sectional view of the medium soft water valve along BB;

[0037] Figure 7 for Figure 1 Simplified structural diagram of the medium water softener in water production mode;

[0038] Figure 8 for Figure 1 Simplified structural diagram of the medium water softener in water filling mode;

[0039] Figure 9 for Figure 1 Simplified structural diagram of the medium water softener in forward wash mode;

[0040] Figure 10 for Figure 1 Simplified schematic diagram of the water softener in backwash mode;

[0041] Figure 11 for Figure 1 Simplified schematic diagram of the medium water softener in downstream regeneration mode;

[0042] Figure 12A simplified structural diagram of another embodiment of the water softener of the present invention in the countercurrent regeneration mode;

[0043] Figure 13 for Figure 1 A schematic diagram of the structure of the valve body of the water softener's water softener at an angle;

[0044] Figure 14 for Figure 13 Cross-sectional view of the middle valve body along CC;

[0045] Figure 15 for Figure 1 A schematic diagram of the structure of the grid assembly of the soft water valve of the medium water softener;

[0046] Figure 16 for Figure 15 A partial enlarged view of point B in the middle.

[0047] Description of reference numerals:

[0048] 1. Valve body; 101. Water inlet channel; 102. Sidewall channel; 103. Sewage discharge channel; 104. Center channel; 105. Water outlet channel; 106. Salt absorption and injection channel; 107. Jet channel; 107a. First jet channel; 107b. Second jet channel; 11. Valve chamber; 111. Water passage chamber; 112. Water inlet chamber; 113. Sidewall chamber; 114. Sewage discharge chamber; 115. Center chamber; 116. Water outlet chamber; 117. Salt injection and absorption chamber; 14. Bypass channel; 15. Valve body; 151. First dividing rib; 1511. First rib surface; 1512. Second rib surface; 16 , valve base; 161, soft tank interface; 162, second dividing rib; 2, grille assembly; 21, grille unit; 211, outer sealing ring groove; 212, widened gap; 22, outer sealing ring; 24, support retaining ring; 3, piston; 31, first piston body; 311, water channel; 312, first water ring groove; 32, second piston body; 321, second water ring groove; 33, first piston; 34, second piston; 4, ejector; 51, drive mounting seat; 71, water inlet connector; 72, water outlet connector; 73, salt box connector; 200, soft water tank; 300, salt box; 400, display screen.

[0049] 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

[0050] 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0051] 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.

[0052] 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.

[0053] The present invention provides a soft water valve.

[0054] Reference Figures 1 to 3 In one embodiment of the present invention, the soft water valve comprises:

[0055] The valve body 1 is provided with a valve cavity 11;

[0056] a grid assembly 2 disposed in the valve cavity 11 to sequentially divide the valve cavity 11 into a plurality of water passage cavities 111 along its axial direction; and

[0057] The piston 3 is provided in the grille assembly 2. The soft water valve has multiple water path modes. 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.

[0058] The valve body 1 is further provided with a plurality of channels communicating with the valve cavity 11 , wherein some of the channels are arranged horizontally, and the rest are arranged downwardly.

[0059] However, the present design is not limited thereto. In some other embodiments, the plurality of channels may all be arranged in a horizontal direction; and in some other embodiments, the plurality of channels may all be arranged in a downward direction.

[0060] In the present invention, a channel arranged horizontally generally refers to an extension direction of the channel extending in a horizontal direction or a nearly horizontal direction, so that the channel opening faces the horizontal direction or a nearly horizontal direction, and the nearly horizontal direction generally refers to a direction with an inclination angle of less than or equal to 20° relative to the horizontal direction. A channel arranged downward generally refers to an extension direction of the channel extending in a vertical downward direction or a nearly vertical downward direction, so that the channel opening faces the vertical downward direction or a nearly vertical downward direction, and the nearly vertical downward direction generally refers to a direction with an inclination angle of less than or equal to 20° relative to the vertical downward direction.

[0061] The technical solution of the present invention configures the multiple channels of the valve body 1 to be arranged horizontally and / or downwardly, so that the multiple channels of the valve body 1 are not arranged upwardly, thereby avoiding the need for other water path components of the water softener to be connected to the channels of the valve body 1 through the top of the valve body 1, thereby avoiding such a connection method from increasing the height of the water softener. In this way, even if the volume of the valve body 1 is increased, the space occupied by the soft water valve and the water path components connected thereto in the water softener will not be too large. Therefore, the technical solution of the present invention enables the volume of the valve body 1 to be made larger, that is, a larger valve cavity 11 can be obtained, thereby increasing the flow rate of the soft water valve, which is conducive to meeting the large flow rate requirements of the water softener.

[0062] Optionally, the diameter of the valve cavity 11 is greater than or equal to 66 mm, so that the flow rate of the water softener is larger, thereby meeting the high flow rate requirements of the water softener. It is worth mentioning that in this embodiment, the diameter of the valve cavity 11 can be 66 mm or larger because the various channels of the valve body 1 are arranged to face laterally and / or downward, thereby concentrating the connection between the water softener and other water channel components to the side and / or below the water softener, thereby optimizing the height design of the water softener. This allows the valve body 1 to be made larger while meeting the low height requirements of the water softener (for example, when installed in a kitchen space, which has relatively strict height requirements).

[0063] Optionally, a plug cavity is provided within the grille assembly 2 for movably mounting the piston 3. The plug cavity has a diameter greater than or equal to 32 mm, thereby increasing the flow rate of the water softener valve and meeting the high flow rate requirements of the water softener. It is understood that if the valve cavity 11 can be made larger, the maximum outer diameter of the piston 3 can also be made larger.

[0064] Optionally, the channel is perpendicular to the axis of the valve chamber 11. In this way, on the one hand, it can reduce the flow rate loss caused by the water flow reversal, thereby increasing the water flow rate of the soft water valve, which helps to ensure the soft water efficiency of the soft water valve; on the other hand, it is conducive to achieving a larger water flow cross-sectional area at the connection between each channel and the valve body 1, thereby increasing the water flow rate of the soft water valve.

[0065] In one embodiment, the multiple channels include a water inlet channel 101, a side wall channel 102, a central channel 104, a water outlet channel 105, a sewage discharge channel 103 and a salt absorption and injection channel 106; the multiple water passage chambers 111 include a water inlet chamber 112 connected to the water inlet channel 101, a side wall chamber 113 connected to the side wall channel 102, a sewage discharge chamber 114 connected to the sewage discharge channel 103, a central chamber 115 connected to the central channel 104, a water outlet chamber 116 connected to the water outlet channel 105, and a water injection and salt absorption chamber 117 connected to the salt absorption and injection channel 106. The water inlet chamber 112, the side wall chamber 113, the sewage discharge chamber 114, the central chamber 115, the water outlet chamber 116 and the water injection and salt absorption chamber 117 are arranged in sequence along the axial direction of the valve chamber 11.

[0066] Optionally, the grid assembly 2 includes a plurality of support retaining rings 24 arranged at intervals, the outer peripheries of the plurality of support retaining rings 24 abut against the inner periphery of the valve cavity 11 , the inner peripheries of the support retaining rings 24 abut against the piston 3 , and a water passage cavity 111 is formed between two adjacent support retaining rings 24 .

[0067] 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.

[0068] 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.

[0069] Reference Figures 4 to 6 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.

[0070] 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 117, 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 and the water outlet chamber 116 being separated and 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.

[0071] In one embodiment, the valve body 1 is provided with a downwardly disposed soft tank interface 161, within which the sidewall channel 102 and the central channel 104 are located. The soft tank interface 161 is configured to connect to a soft water tank 200 of a water softener. The soft water tank 200 contains a softening medium for softening raw water entering the soft water tank 200, thereby reducing the hardness of the water used by the user. In this embodiment, the soft tank interface 161, that is, the side wall channel 102 and the central channel 104 are all arranged downward, which can prevent the soft water tank 200 from occupying the space above the soft water valve in the water softener. The overall height design of the water softener can be optimized, making it more suitable for installation in space-constrained areas, such as under a kitchen cabinet (commonly known as "under-cabinet installation"). This layout reduces the overall volume of the device and avoids the need to cut the base plate or modify the installation structure due to height restrictions, thereby simplifying the installation process and reducing construction difficulty. The soft water tank 200 at the bottom can provide a stable foundation, reducing the risk of vibration or displacement, thereby extending the life of the device. At the same time, this layout facilitates daily maintenance, such as replacement of the softening medium, because the soft water tank 200 is easily accessible at the bottom, and the soft water valve is located at the top, which reduces the risk of scale or impurities accumulating on the valve body 1, thereby reducing the failure rate. In addition, the soft water tank 200 is arranged below the soft water valve, which can use gravity to assist the water flow, making the water flow smoother.

[0072] However, the present design is not limited thereto. The soft tank interface 161 may also be arranged horizontally. In this case, the upper end of the soft water tank 200 of the water softener is usually provided with a bent joint to connect to the soft tank interface 161 via the bent joint. In this way, the soft water tank 200 can be prevented from occupying the space above the soft water valve in the water softener, thereby optimizing the overall height design of the water softener.

[0073] In one embodiment, the water inlet channel 101, the water outlet channel 105, the sewage discharge channel 103 and the salt absorption and injection channel 106 are all arranged in a horizontal direction, so as to reduce the longitudinal height of the valve body 1 on the one hand, thereby optimizing the overall height design of the water softener, making it more suitable for installation in areas with limited space, such as under a kitchen cabinet (commonly known as "under-cabinet installation"), avoiding cutting the floor or adjusting the direction of the pipeline; on the other hand, the risk of shrinkage and deformation of the cross-section of the transverse channel is low, which is conducive to supporting high instantaneous flow, so as to meet the large flow demand of the water softener; on the other hand, there is no water accumulation in the vertical section of the transverse channel when the machine is shut down, reducing the retention of scale or particulate matter, thereby avoiding the deposition of impurities.

[0074] Optionally, a water inlet connector 71 is provided at the channel mouth of the water inlet channel 101, and the water inlet connector 71 is bent and extended downward. In this way, on the one hand, the external water inlet pipe can be avoided from occupying the space above the side of the valve body 1, and the overall height design of the water softener can be optimized, making it more suitable for installation in areas with limited space, such as under the kitchen cabinet (commonly known as "under-cabinet installation"); on the other hand, compared with directly using a transversely extended water inlet connector 71, it can also avoid the external water inlet pipe significantly increasing the transverse width required for the product, which will also be detrimental to the installation of the water softener in a narrow space.

[0075] Optionally, a water outlet connector 72 is provided at the channel mouth of the water outlet channel 105, and the water outlet connector 72 is bent and extended downward. In this way, on the one hand, the external water outlet pipe can be avoided from occupying the space above the side of the valve body 1, and the overall height design of the water softener can be optimized, making it more suitable for installation in areas with limited space, such as under the kitchen cabinet (commonly known as "under-cabinet installation"); on the other hand, compared with directly using a transversely extended water outlet connector 72, it can also avoid the external water outlet pipe significantly increasing the transverse width required for the product, which will also be detrimental to the installation of the water softener in a narrow space.

[0076] Optionally, a salt box connector 73 is provided at the channel opening of the salt absorption and water injection channel 106, and the salt box connector 73 is bent and extended downward. In this way, on the one hand, the salt box 300 can be prevented from occupying the space above the soft water valve side in the water softener, and the overall height design of the water softener can be optimized, making it more suitable for installation in areas with limited space, such as under the kitchen cabinet (commonly known as "under-cabinet installation"), and the salt box 300 can provide a stable foundation below to reduce the risk of vibration or displacement, thereby extending the life of the equipment; on the other hand, compared with directly using a laterally extending salt box connector 73, it can also avoid significantly increasing the lateral width required for the product, which will also be detrimental to the installation of the water softener in a narrow space.

[0077] In this embodiment, the water inlet joint 71, the water outlet joint 72 and the salt box joint 73 are all bent and extended downward; however, the present design is not limited to this. In some other embodiments, the water inlet joint 71, the water outlet joint 72 and the salt box joint 73 may also be only partially bent and extended downward.

[0078] Optionally, the water inlet channel 101, the sewage channel 103 and the water outlet channel 105 are all located on one lateral side of the valve body 1, and the salt absorption and water injection channel 106 is located on the other lateral side of the valve body 1. In this way, on the one hand, the space on the two opposite lateral sides of the valve body 1 is more reasonably utilized to disperse and design multiple channels to avoid congestion and ensure that each channel can have a larger diameter, which is conducive to meeting the large flow demand of the water softener; on the other hand, the water inlet channel 101, the sewage channel 103 and the water outlet channel 105 that require external water pipes (water inlet pipe, water outlet pipe, sewage pipe) are concentrated on the same side of the valve body 1, which is conducive to the unified disassembly and assembly of external water pipes in narrow spaces such as under cabinets.

[0079] Optionally, the drain channel 103 is located between the water inlet channel 101 and the water outlet channel 105, and is lower than the water inlet channel 101 and the water outlet channel 105. It will be appreciated that the lower position of the drain channel 103 indicates that the connection point between the drain channel 103 and the valve body 1 is also lower, that is, this connection point is closer to the bottom of the valve body 1, which facilitates the emptying of sewage from the drain chamber 114. Furthermore, the lower position of the drain channel 103 allows for the natural flow of sewage and solid waste to an external drain pipe by gravity, facilitating smooth drainage and significantly reducing maintenance frequency.

[0080] Optionally, the upper end surfaces of the water inlet channel 101 and the water outlet channel 105 are no higher than the upper end surface of the valve body 1. It is understood that the water inlet channel 101 and the water outlet channel 105 are typically the largest channels. When the upper end surfaces of the water inlet channel 101 and the water outlet channel 105 are each lower than or flush with the upper end surface of the valve body 1, it essentially means that the upper end surfaces of the multiple channels are no higher than the upper end surface of the valve body 1. This prevents the channels from occupying the space above the side of the valve body 1, optimizes the overall height design of the water softener, and makes it more suitable for installation in space-constrained areas, such as under a kitchen cabinet (commonly known as "under-cabinet installation").

[0081] In one embodiment, the plurality of channels further include a jet channel 107, which is disposed between the water inlet chamber 112 and the sidewall chamber 113, and / or between the central chamber 115 and the water outlet chamber 116. The soft water valve further includes an ejector 4 disposed in the jet channel 107. The jet channel 107 and the salt absorption and water injection channel 106 are located on the same side of the valve body 1, thereby more effectively utilizing the space of the valve body 1 on the side where the salt absorption and water injection channel 106 is located.

[0082] 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.

[0083] See also Figure 4 、 Figure 6 and Figure 7 In an embodiment of the present invention, the multiple water channel 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 flows into the soft water tank 200 through the side wall chamber 113 and the side wall channel 102 in turn to be softened; the softened soft water flows out of the soft water valve through the central channel 104, the central chamber 115, the water outlet chamber 116 and the water outlet channel 105 in turn. Please refer to Figure 7 , Figure 7 This is a simplified structural diagram of the water softener in water production mode. The direction indicated by the arrow in the figure is the water flow direction of the water softener in water production mode.

[0084] See also Figure 4 、 Figure 6 and Figure 8In an embodiment of the present invention, the plurality of 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; raw water flows into the water inlet chamber 112 through the water inlet channel 101, and sequentially passes through the side wall chamber 113. The softened water flows through the central channel 104 and the central cavity 115 into the water outlet cavity 116, and then a portion of the softened water flows out of the softening valve through the water outlet channel 105, and the other portion of the softened water flows into the water injection and salt absorption cavity 117, and then is injected 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 8 , Figure 8 This is a simplified structural diagram of the water softener in water injection mode. The direction indicated by the arrow in the figure is the water flow direction of the water softener in water injection mode.

[0085] See also Figure 4 、 Figure 6 and Figure 9 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 via the water flow channel 311. The central chamber 115 communicates with the sewage discharge chamber 114 via the first water flow annular 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 the raw water flows into the water outlet chamber 116 via the water flow channel 311 and is discharged from the soft water valve via the water flow channel 105. The other portion flows into the side wall chamber 113 and flows into the soft water tank 200 via the side wall channel 102 to clean the soft water tank 200. The cleaned sewage is discharged from the soft water valve via the central channel 104, the central chamber 115, the sewage discharge chamber 114, and the sewage discharge channel 103 in sequence. Figure 9 This is a simplified structural diagram of the water softener in forward wash mode. The direction indicated by the arrow in the figure is the water flow direction of the water softener in forward wash mode.

[0086] See also Figure 4 、 Figure 6 and Figure 10In an embodiment of the present invention, the plurality of 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 passage 311, the side wall chamber 113 is connected to the sewage discharge chamber 114 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 second piston body 32 blocks the water injection and salt absorption chamber 117; raw water The 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 passage 311. A portion of the water then flows out of the soft water valve through the water outlet channel 105. The other portion flows into 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 wastewater flows out of the soft water valve in sequence through the side wall channel 102, the side wall chamber 113, the sewage chamber 114 and the sewage channel 103. Figure 10 , Figure 10 This is a simplified structural diagram of the water softener in backwash mode. The direction indicated by the arrow in the figure is the water flow direction of the water softener in backwash mode.

[0087] Optionally, the valve body 1 is further provided with a bypass channel 14. The jet channel 107 includes a first jet channel 107a and a second jet channel 107b. The first jet channel 107a is provided between the water inlet chamber 112 and the sidewall chamber 113, and the second jet channel 107b is provided between the central chamber 115 and the water outlet chamber 116. The soft water valve further includes an ejector 4 and a plug, one of which is provided in the first jet channel 107a and the other in the second jet channel 107b. 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 107a and the second jet channel 107b.

[0088] See also Figure 4 、 Figure 6 and Figure 11 In an embodiment of the present invention, the plurality of 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 communicate with 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.

[0089] 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 a portion of it can flow to the water outlet chamber 116 through the water passage 311 and be discharged 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 in sequence passes through the side wall chamber 113 and the side wall channel 102 into the soft water tank 200, so that the soft water medium in the soft water tank 200 is regenerated, and the regenerated waste water 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 11 , Figure 11 This is a simplified structural diagram of the water softener in the downstream regeneration mode. The direction indicated by the arrow in the figure is the water flow direction of the water softener in the downstream regeneration mode.

[0090] See also Figure 4 、 Figure 6 and Figure 12 In an embodiment of the present invention, the plurality of 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 communicate with 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.

[0091] 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 passage 311. A portion of the raw water can be discharged from the soft water 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 flows into the soft water tank 200 in sequence through the central cavity 115 and the central channel 104, so as to regenerate the soft water medium in the soft water tank 200. The regenerated waste water is discharged from the soft water valve in sequence through the side wall channel 102, the side wall cavity 113, the sewage chamber 114 and the sewage channel 103. Figure 12 , Figure 12This is a simplified structural diagram of the water softener in countercurrent regeneration mode. The direction indicated by the arrow in the figure is the water flow direction of the water softener in countercurrent regeneration mode.

[0092] In one embodiment, please refer to Figure 15 and Figure 16 The 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;

[0093] When the cavity opening of the valve cavity 11 is in an open state, the grille assembly 2 is installed to the valve cavity 11 in the 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 driving mounting seat 51 is used to cover the cavity opening of the valve cavity 11, the driving mounting seat 51 abuts against the grille assembly 2 to eliminate the widened gap 212, so that the outer sealing ring 22 is pressed against the cavity wall of the valve cavity 11.

[0094] 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.

[0095] 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 .

[0096] When the drive mounting seat 51 covers the cavity opening of the valve cavity 11, the drive mounting seat 51 abuts against the grille assembly 2, so that under the pressing action of the drive 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.

[0097] In one embodiment, please refer to Figure 11 and Figure 12 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.

[0098] 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.

[0099] 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-passing ring groove 312 on the first piston 33 is different from the axial position on the second piston 34, that is, the partial water-passing 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-passing ring groove 312 needs to be adjusted to simultaneously process the downstream regeneration valve and the reverse regeneration valve. Compared with the prior art, in which the structures of the downstream regeneration valve and the reverse regeneration valve are processed separately and then assembled separately, this solution can not only improve the processing efficiency, but also save the cost of a set of molds, thereby reducing the cost of the soft water valve.

[0100] Please refer to Figures 13 to 15 In one embodiment, the valve body 1 comprises a valve body 15 and a valve base 16, which are assembled into separate parts. A soft tank interface 161 is provided on the valve base 16. A first dividing rib 151 is provided on the side of the valve body 15 near the valve base 16, which cooperates with the grille assembly 2 to separate multiple water passage chambers 111. The valve base 16 has a second dividing rib 162 corresponding to each first dividing rib 151. The first dividing rib 151 has a first rib surface 1511 and a second rib surface 1512 that oppose each other in the radial direction of the valve chamber 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 valve base 16 are connected by hot plate welding.

[0101] Optionally, 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.

[0102] In the technical solution of this embodiment, the valve body 15 is provided with a first dividing rib 151 on a side adjacent to the valve base 16 for separating the plurality of water passage chambers 111. The first rib surface 1511 of the dividing rib abuts the grille assembly 2. That is, each first dividing rib 151 abuts a corresponding support ring 24 of the grille assembly 2. As a result, the outer periphery of the grille assembly 2 abuts only against the valve body 15. This eliminates the effect of the abutment between the outer periphery of the grille assembly 2 and the inner periphery of the valve chamber 11 on the connection between the valve body 15 and the valve base 16, thereby reducing the probability of cracking at the connection between the valve body 15 and the valve base 16. In other words, it can reduce the probability of the valve body 1 bursting, thereby increasing 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, further reducing the probability of the valve body 1 bursting, and increasing the service life of the soft water valve.

[0103] Optionally, the joint surface between the valve body 15 and the valve base 16 passes through the bypass channel 14 to facilitate the formation of the bypass channel 14 .

[0104] 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 arranged 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 transported 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.

[0105] 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.

[0106] In one embodiment, referring to Figure 1 The water softener also includes a display screen 400, located on one side of the water softener valve. Serving as the core interface for human-computer interaction, the display screen 400 provides real-time feedback on the device's operating status, as well as multiple functions such as intelligent management, fault warning, and user experience optimization. Compared to the technical solution of stacking the display screen on the upper side of the water softener valve, this embodiment places the display screen 400 on one side of the water softener valve, which helps optimize the overall height design of the water softener, making it more suitable for installation in space-constrained areas, such as under kitchen cabinets (commonly known as "under-cabinet installation").

[0107] The above description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. A soft water valve, characterized in that: include: A valve body, provided with a valve cavity; A grid assembly is provided in the valve cavity to sequentially divide the valve cavity into a plurality of water passage cavities along its axial direction; as well as a piston disposed in the grille assembly, the soft water valve having a plurality of water path modes, the piston moving along the axial direction of the valve cavity to switch the soft water valve between the plurality of water path modes; The valve body is further provided with a plurality of channels communicating with the valve cavity, and the plurality of channels are arranged laterally and / or downwardly.

2. The soft water valve according to claim 1, characterized in that The multiple channels include a water inlet channel, a side wall channel, a central channel, a water outlet channel, a sewage discharge channel and a salt absorption and injection channel; the multiple water passage chambers include a water inlet chamber connected to the water inlet channel, a side wall chamber connected to the side wall channel, a sewage discharge chamber connected to the sewage discharge channel, a central chamber connected to the central channel, a water outlet chamber connected to the water outlet channel, and a water injection and salt absorption chamber connected to 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 are arranged in sequence along the axial direction of the valve chamber.

3. The soft water valve according to claim 2, characterized in that The valve body is provided with a downwardly disposed soft tank interface, and the side wall channel and the central channel are provided in the soft tank interface.

4. The soft water valve according to claim 2, characterized in that The water inlet channel, the water outlet channel, the sewage discharge channel and the salt absorption and water injection channel are all arranged in a transverse direction.

5. The soft water valve according to claim 4, characterized in that: The water inlet channel, the sewage discharge channel and the water outlet channel are all located on one lateral side of the valve body, and the salt absorption and water injection channel is located on the other lateral side of the valve body.

6. The soft water valve according to claim 5, characterized in that The sewage discharge channel is located between the water inlet channel and the water outlet channel, and the sewage discharge channel is lower than the water inlet channel and the water outlet channel.

7. The soft water valve according to claim 6, characterized in that The upper end surfaces of the water inlet channel and the water outlet channel are no higher than the upper end surface of the valve body.

8. The soft water valve according to claim 5, characterized in that The plurality of channels further include a jet channel, the jet channel being arranged between the water inlet cavity and the side wall cavity, and / or between the central cavity and the water outlet cavity; the soft water valve further includes an ejector arranged in the jet channel; The jet channel and the salt absorption and water injection channel are located on the same side of the valve body.

9. The soft water valve according to claim 5, characterized in that A water inlet connector is provided at the channel opening of the water inlet channel, and the water inlet connector is bent and extended downward; and / or The outlet of the water outlet channel is provided with a water outlet joint, and the water outlet joint is bent and extended downward; and / or A salt box joint is provided at the channel opening of the salt absorption and water injection channel, and the salt box joint is bent and extended downward.

10. The soft water valve according to claim 1, characterized in that The passage is perpendicular to the axis of the valve cavity.

11. The soft water valve according to claim 1, characterized in that The diameter of the valve cavity is greater than or equal to 66 mm; and / or, a plug cavity for movably mounting the piston is provided in the grid assembly, and the diameter of the plug cavity is greater than or equal to 32 mm.

12. The soft water valve according to claim 2, characterized in that 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 soft water valve further includes a drive mounting seat for sealing the valve cavity opening; when the valve cavity opening is in an open state, the grille assembly is mounted 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 drive mounting seat covers the cavity opening of the valve cavity, the drive 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.

13. The soft water valve according to claim 2, characterized in that 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.

14. The soft water valve according to claim 3, characterized in that 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 one side close to the valve base, which cooperates with the grille assembly to separate a plurality of water flow chambers. 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 to each other 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.

15. A water softener, characterized in that: The invention comprises a soft water valve according to any one of claims 1 to 14.

16. The water softener according to claim 15, wherein: The water softener further comprises a display screen, which is located on a lateral side of the water softener valve.

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