CN110410530B - Soft water valve and water softener - Google Patents

Soft water valve and water softener Download PDF

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Publication number
CN110410530B
CN110410530B CN201810409439.8A CN201810409439A CN110410530B CN 110410530 B CN110410530 B CN 110410530B CN 201810409439 A CN201810409439 A CN 201810409439A CN 110410530 B CN110410530 B CN 110410530B
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CN
China
Prior art keywords
valve
cavity
water
gate
piston
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Application number
CN201810409439.8A
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Chinese (zh)
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CN110410530A (en
Inventor
刘国华
何志锋
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Midea Group Co Ltd
Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
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Application filed by Midea Group Co Ltd, Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201810409439.8A priority Critical patent/CN110410530B/en
Priority to PCT/CN2018/111215 priority patent/WO2019205525A1/en
Priority to US16/179,945 priority patent/US20190072208A1/en
Publication of CN110410530A publication Critical patent/CN110410530A/en
Application granted granted Critical
Publication of CN110410530B publication Critical patent/CN110410530B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/0655—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with flat slides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Multiple-Way Valves (AREA)

Abstract

The invention discloses a soft water valve and a soft water machine, wherein the soft water valve comprises a valve body, a spacer group and a piston assembly, the piston assembly comprises a piston body and a piston rod, the piston assembly is provided with a water passing channel with two through ends, and the outer peripheral surface of the piston body is provided with a plurality of sealing surfaces and communication grooves in a staggered manner along the pressing-in direction; the spacer group and the inner peripheral surface of the valve cavity of the valve body form a plurality of brake grooves which are distributed along the pressing-in direction; the valve cavity is provided with a proximal cavity and a distal cavity which are respectively adjacent to the proximal end and the distal end of the spacer group in the pressing-in direction; the inner wall surface of the valve cavity is provided with a water inlet inner hole, a water outlet inner hole, a forward washing water inlet, a forward washing jet hole, a softening inlet and a waste water inner hole corresponding to the plurality of gate grooves, and a softening outlet is arranged corresponding to the far-side cavity; the adjacent proximal cavities and the brake slots are separated by corresponding sealing surfaces or communicated by corresponding communicating slots. The soft water valve realizes waterway switching under the normal washing working condition by a simpler structure, and has simple assembly and low production cost.

Description

Soft water valve and water softener
Technical Field
The invention relates to the technical field of water purification treatment equipment, in particular to a soft water valve and a soft water machine.
Background
The water softener can soften water quality, thereby improving the water quality experience of users, saving cleaning agent, saving water and the like. The core part of the water softener is a soft water valve. The soft water valve has the functions of realizing the switching of different waterways such as water purification, backwashing, salt absorption regeneration, forward washing, water injection and the like, and particularly realizes the reciprocating translation of a main piston connected to a piston rod by controlling a multi-way valve. In order to realize the normal washing of salt absorption, the piston body is traditional with two parts of clutchable in order to realize the function of piston body inside cavity water conduction intercommunication corresponding water route, and from this the piston rod is connected the cooperation link of piston body more to and with the required precision height of corresponding spacer group cooperation, lead to production and processing cost height.
Disclosure of Invention
The invention mainly aims to provide a soft water valve, and aims to solve the technical problems of complex structure and complicated assembly of the conventional soft water valve for realizing salt absorption and forward washing.
In order to achieve the above object, the soft water valve provided by the invention comprises a valve body, a spacer group and a piston assembly, wherein the piston assembly comprises a piston body and a piston rod, wherein,
The piston assembly is provided with a water passing channel with two through ends, and the outer peripheral surface of the piston body is provided with a plurality of sealing surfaces and communication grooves in a staggered manner along the pressing-in direction; the spacer group and the inner peripheral surface of the valve cavity of the valve body form a plurality of brake grooves which are arranged along the pressing-in direction;
The valve cavity is provided with a proximal cavity and a distal cavity which are respectively adjacent to the proximal end and the distal end of the spacer group in the pressing-in direction; a water inlet inner hole, a water outlet inner hole, a forward washing water inlet, a forward washing jet hole, a softening inlet and a waste water inner hole are formed in the inner wall surface of the valve cavity corresponding to the plurality of gate grooves, and a softening outlet is formed corresponding to the far-side cavity; the adjacent proximal cavity and the brake slot are separated by the corresponding sealing surface or communicated by the corresponding communication slot between the two brake slots and between the brake slot and the distal cavity.
Preferably, a backwash water inlet is further formed in the inner wall surface of the valve cavity corresponding to the plurality of gate grooves, and a backwash water jet port is formed in the distal cavity corresponding to the plurality of gate grooves.
In the backwash working condition, the water inlet inner hole is communicated with a backwash water inlet, the backwash jet port is communicated with a softening outlet, and the softening inlet is communicated with a waste water inner hole.
Preferably, the plurality of gate grooves includes a first gate groove, a fourth gate groove, and a second gate groove and a third gate groove between the first gate groove and the fourth gate groove;
The proximal cavity is adjacent to the first gate slot, the distal cavity is adjacent to the fourth gate slot, the valve cavity
The inner wall surface corresponding to the first gate groove is provided with the waste water inner hole;
The inner wall surface corresponding to the second gate groove is provided with the normal washing jet hole and a softening inlet;
The inner wall surface corresponding to the third gate groove is provided with the forward washing water inlet and a water inlet inner hole; and
The inner wall surface corresponding to the fourth gate groove is provided with the backwash water inlet and the water outlet inner hole.
Preferably, the plurality of sealing surfaces comprise a first sealing surface, a second sealing surface and a third sealing surface, and the plurality of communication grooves comprise the first communication groove and the second communication groove;
The first sealing surface, the first communication groove, the second sealing surface, the second communication groove and the third sealing surface are sequentially staggered along the pressing-in direction; the first gate groove, the second gate groove, the third gate groove and the fourth gate groove are sequentially distributed along the pressing-in direction.
Preferably, the first gate groove, the second gate groove, the third gate groove and the fourth gate groove are all annular, the first sealing surface, the first communicating groove, the second sealing surface, the second communicating groove and the third sealing surface are all annular, and the first sealing surface, the second sealing surface and the third sealing surface are positioned in the same circumferential surface.
Preferably, the valve body comprises a body and an end cover, the body is provided with an inner cavity with one end open, and the end cover covers the opening of the valve body and encloses the valve body to form the valve cavity.
Preferably, the piston rod extends out of the valve body through the end cap, the proximal cavity is adjacent to the end cap, and the valve cavity has a bottom surface opposite the end cap;
The soft water valve further comprises an annular shaped grill having a recess facing the bottom surface, the distal cavity being formed between the recess and the bottom surface; the spacer group is tightly pressed between the end cover and the special-shaped grating.
Preferably, the piston body is an integral unit, the piston assembly further comprises a connecting piece and a fastening piece, the connecting piece is arranged on the piston rod, the connecting piece and the piston rod are in limit fit in the telescopic direction of the piston rod, and the fastening piece is matched with the piston body to limit the connecting piece in the telescopic direction.
Preferably, the piston body is integrally injection molded, the piston body is provided with a cavity which extends along the expansion direction and is penetrated at two ends, and the inner wall surface of the cavity is provided with a step surface;
the outer peripheral surface of the piston rod is provided with a through hole, and the connecting piece is in a strip shape and penetrates through the through hole; the fastener is annularly arranged and embedded in the cavity, an annular space formed between the inner annular surface of the fastener and the outer peripheral surface of the piston rod is communicated with the cavity, and the connecting piece is clamped between the step surface and the fastener.
The invention also provides a water softener, which comprises an ion exchange tank, a salt tank and the soft water valve, wherein the soft water valve comprises a valve body, a spacer group and a piston assembly, the piston assembly comprises a piston body and a piston rod, and the water softener comprises a water inlet and a water outlet, wherein the water inlet is connected with the water inlet of the water softener,
The piston assembly is provided with a water passing channel with two through ends, and the outer peripheral surface of the piston body is provided with a plurality of sealing surfaces and communication grooves in a staggered manner along the pressing-in direction; the spacer group and the inner peripheral surface of the valve cavity of the valve body form a plurality of brake grooves which are arranged along the pressing-in direction;
The valve cavity is provided with a proximal cavity and a distal cavity which are respectively adjacent to the proximal end and the distal end of the spacer group in the pressing-in direction; a water inlet inner hole, a water outlet inner hole, a forward washing water inlet, a forward washing jet hole, a softening inlet and a waste water inner hole are formed in the inner wall surface of the valve cavity corresponding to the plurality of gate grooves, and a softening outlet is formed corresponding to the far-side cavity; the adjacent proximal cavity and the brake slot are separated by the corresponding sealing surface or communicated by the corresponding communication slot between the two brake slots and between the brake slot and the distal cavity.
According to the soft water valve, the water passing channels with two through ends are arranged on the piston assembly, in a forward washing working condition, the water inlet inner hole is communicated with the forward washing water inlet, the forward washing jet hole is communicated with the softening inlet, the softening outlet is communicated with the far-side cavity, the near-side cavity is communicated with the waste water inner hole, and the water passing channels are communicated with the near-side cavity and the far-side cavity. In the normal washing working condition, the piston body is not required to be split into two parts capable of being separated and combined, so that the communication of the corresponding waterway is realized. The soft water valve of this embodiment has fully utilized the inner space of piston assembly, improves the cooperation relation between piston assembly and the valve body simultaneously to comparatively simple structure has realized the waterway switching of the operating mode of just washing, and the assembly is simple, low in production cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a soft water valve of the present invention, with the drive mechanism omitted;
FIG. 2 is a partially exploded view of the soft water valve of FIG. 1;
FIG. 3 is a right side schematic view of the soft water valve of FIG. 1;
FIG. 4 is a schematic cross-sectional view of the structure of FIG. 3 along the line IV-IV;
FIG. 5 is a schematic view of the body structure of the valve body of FIG. 1;
FIG. 6 is a schematic cross-sectional view of the structure of FIG. 5 along the line VI-VI;
FIG. 7 is a schematic cross-sectional view taken along line VII-VII of FIG. 5;
FIG. 8 is a schematic cross-sectional view taken along line VIII-VIII in FIG. 5;
FIG. 9 is a schematic elevation view of the body of FIG. 5;
FIG. 10 is a mating structural view of the end cap, piston assembly of the soft water valve of FIG. 1;
fig. 11 is a schematic cross-sectional structure of the piston body of fig. 10;
FIG. 12 is a schematic view showing a structure of an embodiment of the water softener of the present invention;
FIG. 13 is an enlarged view of a portion of FIG. 12 at A, wherein the soft water valve is in a forward washing condition;
FIG. 14 is an enlarged view of a portion of FIG. 12 at A, wherein the soft valve is in a backwash mode;
FIG. 15 is an enlarged view of a portion of FIG. 12 at A, wherein the soft water valve is in a water producing condition;
fig. 16 is an enlarged view of a portion of fig. 12 at a, wherein the soft water valve is in a fill condition.
Reference numerals illustrate:
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a soft water valve.
In the embodiment of the present invention, as shown in fig. 1 to 4, 6 and 12 and 13, the soft water valve 100 includes a valve body 1, a spacer group 2 and a piston assembly 3, the piston assembly 3 includes a piston body 31 and a piston rod 32, wherein,
The piston assembly 3 is provided with a water passing channel 33 with two through ends, and the outer peripheral surface of the piston body 31 is provided with a plurality of sealing surfaces and communicating grooves in a staggered manner along the pressing-in direction; the spacer group 2 and the inner peripheral surface of the valve cavity 11 of the valve body 1 form a plurality of brake grooves which are arranged along the pressing-in direction;
the valve chamber 11 has a proximal chamber 12 and a distal chamber 13 adjacent to the proximal and distal ends of the spacer group 2 in the pressing-in direction, respectively; a water inlet inner hole 141, a water outlet inner hole 142, a forward washing water inlet 143, a forward washing jet hole 144, a softening inlet 145 and a waste water inner hole 146 are arranged on the inner wall surface of the valve cavity 11 corresponding to the plurality of gate grooves, and a softening outlet 147 is arranged corresponding to the far-side cavity 13; the adjacent proximal cavity 12 and the gate groove, the gate groove and the distal cavity 13 are separated by corresponding sealing surfaces or communicated by corresponding communicating grooves.
In this embodiment, the valve body 1 may be constructed by fastening several parts with bolts and sealing and matching with a seal ring on the mating surface, and for mass production, the parts may be integrally injection molded; in addition, the structure of the valve body 1 can be connected together by adopting an ultrasonic welding mode through a plurality of parts at the same time so as to form a relatively complex valve cavity 11 and each channel structure; furthermore, the valve body 1 can be produced by adopting an emerging 3D printing technology so as to adapt to small-batch models.
The spacer group 2 is used to form a number of gate grooves, typically by splicing similar structural members, and for fixing in the direction of pressing in and out the piston rod 32, these structural members are provided with support rods connected between opposite spacers in addition to the spacers, thereby forming a grid-like gate groove. In order to better isolate adjacent brake slots, a seal member is also provided between adjacent structural members, typically in the form of a ring extending inwardly beyond the inner edges of the separator plates of the structural members.
In the piston assembly 3, the piston body 31 realizes waterway switching of corresponding functions, such as water production, salt absorption forward washing, salt absorption reverse washing and water injection waterway of the salt tank 300, through reciprocating translation. The piston rod 32 mainly plays a role in transmission, the inner container of the piston rod 32 is connected with the piston body 31, and the outer end of the piston rod 32 is connected with the driving mechanism. The drive mechanism is usually a gear and cam set for automatic switching of the waterway.
The water inlet bore 141, the water outlet bore 142, the forward wash inlet 143, the forward wash jet aperture 144, the softening inlet 145, and the wastewater bore 146 may have different arrangements. It will be appreciated that the inlet bore 141, outlet bore 142 and waste bore 146 are in communication with different sluice chambers in two-by-two relationship. Similarly, the forward wash inlet 143 and the forward wash jet aperture 144 are also located in different lock grooves. In addition, there are many combinations.
As can be understood, referring to fig. 5 to 9, specifically, the valve body 1 is formed with a water inlet 151, a water outlet 152, and a waste water outlet 153, and is formed with:
a water inlet channel 160 communicated with the water inlet inner hole 141 and the water inlet interface 151,
Water outlet channel 161 communicating with water outlet inner hole 142 and water outlet port 152
Waste water runner 162 communicating waste water inner hole 146 and waste water interface 153
An outer flow channel 163 communicating with the softening inlet 145 and the ion exchange chamber 203;
A center flow passage 164 communicating with the softening outlet 147 and the center pipe 202.
Similarly, the interior of the valve body 1 is also formed with: a forward-wash jet flow channel 165 communicating the forward-wash jet flow hole 144 and the salt water injection channel 169, a forward-wash water inlet channel 166 communicating the forward-wash water inlet 143 and the salt water injection channel 169, a forward-wash water inlet channel 167 communicating the backwash jet flow hole and the salt water injection channel 169, a backwash water inlet channel 168 communicating the backwash jet flow hole and the salt water injection channel 169, and the salt water injection channel 169. It will be appreciated that during the switching of the forward and reverse wash conditions, the forward wash water passage 166 is isolated from the reverse wash water passage 168, and the forward wash jet passage 165 and forward wash water passage 167 are isolated by the switch.
In the present embodiment, the position of each interface and the shape or form of each flow channel or passage are not limited.
The soft water valve 100 of the invention is characterized in that a water passing channel 33 with two through ends is arranged on a piston assembly 3, in a forward washing working condition, a water inlet inner hole 141 is communicated with a forward washing water inlet 143, a forward washing jet hole 144 is communicated with a softening inlet 145, a softening outlet 147 is communicated with a far side cavity 13, a near side cavity 12 is communicated with a waste water inner hole 146, and the water passing channel 33 is communicated with the near side cavity 12 and the far side cavity 13. That is, in the normal washing condition, the piston body 31 is not required to be split into two parts capable of being engaged and disengaged, so that the communication of the corresponding waterway is realized. The soft water valve 100 of the embodiment fully utilizes the internal space of the piston assembly 3, improves the matching relationship between the piston assembly 3 and the valve body 1, realizes waterway switching under the normal washing working condition with a simpler structure, and has simple assembly and low production cost. Referring to fig. 12 and 13, first, as indicated by arrow W1, raw water is introduced into water inlet port 151, water inlet flow channel 160, water inlet bore 141, sluice connected to water inlet bore 141 and water inlet 143, water inlet 166, and brine in brine-absorbing water injection channel 169 indicated by arrow W2 at the water inlet of water inlet jet channel 165, and the mixed brine solution is introduced into water inlet port 153 through water inlet orifice 144, sluice of water inlet orifice 144 and softening inlet 145, outside flow channel 163, ion exchange chamber 203, central tube 202, central flow channel 164, softening outlet 147, distal chamber 13, water passage 33, proximal chamber 12, sluice communicating proximal chamber 12 with water inlet bore 146, water outlet flow channel 162, and finally introduced from water outlet 153 as indicated by arrow W3.
Further, a backwash water inlet 148 is provided on the inner wall surface of the valve chamber 11 corresponding to the plurality of gate grooves, and a backwash water outlet 149 is provided corresponding to the distal chamber 13. As such, the soft water valve 100 of the present embodiment may also integrally implement backwashing, specifically, in a backwashing operation, the water inlet bore 141 communicates with the backwash water inlet 148, the backwash water jet 149 communicates with the softening outlet 147, and the softening inlet 145 communicates with the wastewater bore 146. Referring to fig. 14, first, as indicated by arrow W1, raw water is introduced into a water inlet port 151, a water inlet flow passage 160, a water inlet bore 141, a sluice connecting the water inlet bore 141 and the backwash water inlet port 148, a backwash water inlet passage 168, and brine in a brine suction water injection passage 169 indicated by arrow W2 at a water intake port of the forward wash water inlet passage 167, and the mixed brine solution is introduced into a backwash jet hole, a distal chamber 13 communicating the backwash jet hole and a softening outlet 147, a central flow passage 164, a central pipe 202, an outer flow passage 163, an ion exchange chamber 203, a softening inlet 145, a communicating groove communicating the softening inlet 145 and the wastewater inner bore 146, a wastewater flow passage 162, and finally introduced from a wastewater interface 153.
Further, referring to fig. 4, 6 and 13, the plurality of gate grooves includes a first gate groove 21, a fourth gate groove 24, and a second gate groove 22 and a third gate groove 23 between the first gate groove 21 and the fourth gate groove 24;
proximal cavity 12 is adjacent first gate slot 21, distal cavity 13 is adjacent fourth gate slot 24, valve cavity 11
An inner wall surface corresponding to the first sluice 21 is provided with a waste water inner hole 146;
An n-wash jet hole 144 and a softening inlet 145 are provided on the inner wall surface corresponding to the second sluice 22;
The inner wall surface corresponding to the third sluice 23 is provided with a forward washing water inlet 143 and a water inlet inner hole 141; and
A backwash water inlet 148 and a water outlet inner hole 142 are provided on the inner wall surface corresponding to the fourth sluice 24.
In this embodiment, the forward washing jet hole 144 and the softening inlet 145 share the first gate slot 21, the forward washing water inlet 143 and the water inlet inner hole 141 share the third gate slot 23, and the reverse washing water inlet 148 and the water outlet inner hole 142 share the fourth gate slot 24, so that compared with the one-to-one correspondence between the gate slots and the "ports" or "holes", the integration level is higher, the stroke of the piston body 31 for realizing waterway switching is shorter, and the volume of the soft water valve 100 can be further reduced.
Further, referring to fig. 10 and 11, the plurality of sealing surfaces includes a first sealing surface 341, a second sealing surface 342, and a third sealing surface 343, and the plurality of communication grooves includes a first communication groove 351 and a second communication groove 352;
The first sealing surface 341, the first communication groove 351, the second sealing surface 342, the second communication groove 352 and the third sealing surface 343 are sequentially staggered along the pressing-in direction; the first slot 21, the second slot 22, the third slot 23, and the fourth slot 24 are arranged in this order in the press-in direction.
In the embodiment, the relevant structure of forward washing and backward washing is realized, and when the piston body 31 is pressed in from the initial position, backward washing, water production, water injection and forward washing can be sequentially realized; in the process of being pulled out from the deepest position, the working conditions of forward washing, water injection, water production and backwashing can be sequentially realized. In addition, the backwash water inlet 148 and the backwash water inlet 143 are adjacently arranged, so that both are conveniently communicated with the water inlet inner hole 141, and the corresponding backwash water inlet 166 and backwash water inlet 168 are conveniently separated to prevent water from flowing. The following describes the matching relationship of the piston body 31 and the spacer group 2 in each working condition:
Referring to fig. 15, when water is produced, the first sealing surface 341 blocks the proximal cavity 12 from communicating with the first gate slot 21 and the first communicating slot 351, the second gate slot 22 and the third gate slot 23, and the second sealing surface 342 blocks the third gate slot 23 from communicating with the fourth gate slot 24 and the second communicating slot 352, and the fourth gate slot 24 communicates with the distal cavity 13; the salt absorbing passage is closed and the waterway flows as indicated by arrows W1 and W4.
Referring to fig. 16, when water is injected, the first sealing surface 341 cuts off the proximal cavity 12 from the first gate slot 21 and cuts off the first gate slot 21 from the second gate slot 22, the first communicating slot 351 communicates the second gate slot 22 with the third gate slot 23, the second sealing surface 342 cuts off the third gate slot 23 from the fourth gate slot 24, and the third communicating slot communicates the fourth gate slot 24 with the distal cavity 13; the waterway flow is shown by arrow W5.
Referring to fig. 13, during forward washing, the proximal cavity 12 communicates with the first brake slot 21; the first sealing surface 341 cuts off the first gate groove 21 and the second gate groove 22, and cuts off the second gate groove 22 and the third gate groove 23, the first communicating groove 351 communicates the third gate groove 23 and the fourth gate groove 24, and the second sealing surface 342 cuts off the fourth gate groove 24 and the distal cavity 13, and the distal cavity 13 communicates with the water passage 33; the waterway flow is shown by arrows W1, W2 and W3.
Referring to fig. 14, during backwashing, the first sealing surface 341 blocks the proximal chamber 12 from the first sluice 21; the first communicating groove 351 communicates the first gate groove 21 with the second gate groove 22, the second sealing surface 342 cuts off the second gate groove 22 from the third gate groove 23, the second communicating groove 352 communicates the third gate groove 23 from the fourth gate groove 24, and the third sealing surface 343 cuts off the fourth gate groove 24 from the distal cavity 13; distal lumen 13 communicates with water passage 33, and the waterways flow as indicated by arrows W1, W2, and W3.
Further, the first gate groove 21, the second gate groove 22, the third gate groove 23, and the fourth gate groove 24 are all annular, the first sealing surface 341, the first communication groove 351, the second sealing surface 342, the second communication groove 352, and the third sealing surface 343 are all annular, and the first sealing surface 341, the second sealing surface 342, and the third sealing surface 343 are located in the same circumferential surface.
In this embodiment, by arranging each sluice in a ring shape, the space arrangement of the water inlet hole 141, the water outlet hole 142, the forward washing water inlet 143, the forward washing jet hole 144, the softening inlet 145, the wastewater inner hole 146, the backwash water inlet 148 and the backwash jet hole 149 in the circumferential direction is provided with a more flexible selection space. Each sealing surface and the communication groove of looks adaptation all set up to annular. The sealing surfaces are positioned on the same circumferential surface, which is beneficial to simplifying the structure of the piston body 31 and facilitating the reciprocating translation of the piston body 31.
Further, referring to fig. 1 and 2 again, the valve body 1 includes a body 17 and an end cap 18, the body 17 has an inner cavity with one open end, and the end cap 18 covers the open end of the valve body 1 and encloses the valve body 1 to form a valve cavity 11. By arranging the valve body 1 as a separate structure, assembly of the spacer group 2 and the piston assembly 3 is facilitated.
Further, referring to fig. 4 and 13, the piston rod 32 extends out of the valve body 1 through the end cap 18, the proximal cavity 12 is adjacent to the end cap 18, and the valve cavity 11 has a bottom surface opposite to the end cap 18; the soft water valve 100 further comprises an annular shaped grating 4, the shaped grating 4 having a recess 41 facing the bottom surface, the distal cavity 13 being formed between the recess 41 and the bottom surface; the spacer group 2 is compressed between the end caps 18 and the shaped grid 4. Thus, the spacer group 2 is firmly fixed inside the valve body 1, and the piston body 31 can be ensured to correctly switch waterways when moving relative to the spacer group 2.
Further, referring to fig. 10 and 11 again, the piston body 31 is integrally provided, the piston assembly 3 further includes a connecting member 36 and a fastening member 37, the connecting member 36 is disposed on the piston rod 32, the connecting member 36 is in spacing fit with the piston rod 32 in the extending direction of the piston rod 32, and the fastening member 37 is engaged with the piston body 31 to limit the connecting member 36 in the extending direction. In this embodiment, the piston body 31 and the piston rod 32 are connected by the connecting piece 36 and the fastening piece 37, which is beneficial to processing and molding the piston body 31 and the piston rod 32 respectively.
Further, the piston body 31 is integrally injection molded, the piston body 31 is provided with a cavity 31 extending along the extending and contracting direction and having two through ends, and the inner wall surface of the cavity is provided with a step surface 32;
The outer peripheral surface of the piston rod 32 is provided with a through hole (not shown), and the connecting piece 36 is in a long strip shape and penetrates through the through hole; the fastening member 37 is annularly arranged and embedded in the cavity 31, an annular space formed between the inner annular surface of the fastening member 37 and the outer circumferential surface of the piston rod 32 is communicated with the cavity 31, and the connecting piece 36 is clamped between the step surface 32 and the fastening member 37.
In this embodiment, the piston body 31 is formed by integral injection molding, which is lower in cost and easier to assemble than the conventional separable and clutchable ceramic member. The arrangement of the connecting piece 36 only partially obstructs the annular space between the fastening piece 37 and the piston rod 32, thereby ensuring the clear flow channel 33. While a releasable connection between the piston body 31 and the piston rod 32 is achieved by providing a fastener 37. Specifically, the connection 36 is a pin and the fastener 37 is an internal angle ring nut, so that the fastener 37 can be threadedly engaged with the piston body 31.
The present invention also provides a water softener, referring to fig. 12 to 16, the water softener includes an ion exchange tank 200, a salt tank 300, and a soft water valve 100, and the specific structure of the soft water valve 100 refers to the above embodiments, and since the water softener adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.
In this embodiment, specifically, the ion exchange tank 200 includes a tank 201 and a central tube 202 disposed in the tank 201, an ion exchange chamber 203 is formed between the central tube 202 and an inner wall of the tank 201, an outer flow channel 163 is communicated with the ion exchange chamber 203, a central flow channel 164 is communicated with the central tube 202, and a salt absorbing channel is communicated with a salt tank 300. The ion exchange chamber 203 accommodates ion exchange filter material, preferably soft water resin, so that the calcium ions and magnesium ions in the water to be treated can be conveniently replaced by sodium ions, and the calcium ions and the magnesium ions are replaced and discharged in the regeneration process
The foregoing description of the preferred embodiments of the present invention should not be construed as limiting the scope of the invention, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims (10)

1. A soft water valve comprises a valve body, a spacer group and a piston assembly, wherein the piston assembly comprises a piston body and a piston rod,
The piston assembly is provided with a water passing channel with two through ends, and the outer peripheral surface of the piston body is provided with a plurality of sealing surfaces and communicating grooves in a staggered manner along the pressing-in direction; the spacer group and the inner peripheral surface of the valve cavity of the valve body form a plurality of brake grooves which are arranged along the pressing-in direction;
The valve cavity is provided with a proximal cavity and a distal cavity which are respectively adjacent to the proximal end and the distal end of the spacer group in the pressing-in direction; a water inlet inner hole, a water outlet inner hole, a forward washing water inlet, a forward washing jet hole, a softening inlet and a waste water inner hole are formed in the inner wall surface of the valve cavity corresponding to the plurality of gate grooves, and a softening outlet is formed corresponding to the far-side cavity; the adjacent proximal cavity and the brake slot are separated by the corresponding sealing surface or communicated by the corresponding communication slot between the two brake slots and between the brake slot and the distal cavity.
2. The soft water valve of claim 1, wherein a backwash water inlet is further provided on an inner wall surface of the valve chamber corresponding to the plurality of gate grooves, and a backwash water jet is provided corresponding to the distal chamber.
3. The soft water valve of claim 2, wherein the plurality of gate slots includes a first gate slot, a fourth gate slot, and second and third gate slots between the first and fourth gate slots;
The proximal cavity is adjacent to the first gate slot, the distal cavity is adjacent to the fourth gate slot, the valve cavity
The inner wall surface corresponding to the first gate groove is provided with the waste water inner hole;
The inner wall surface corresponding to the second gate groove is provided with the normal washing jet hole and a softening inlet;
The inner wall surface corresponding to the third gate groove is provided with the forward washing water inlet and a water inlet inner hole; and
The inner wall surface corresponding to the fourth gate groove is provided with the backwash water inlet and the water outlet inner hole.
4. The soft water valve of claim 3, wherein the valve is configured to,
The plurality of sealing surfaces comprise a first sealing surface, a second sealing surface and a third sealing surface, and the plurality of communication grooves comprise a first communication groove and a second communication groove;
The first sealing surface, the first communication groove, the second sealing surface, the second communication groove and the third sealing surface are sequentially staggered along the pressing-in direction; the first gate groove, the second gate groove, the third gate groove and the fourth gate groove are sequentially distributed along the pressing-in direction.
5. The soft water valve of claim 4, wherein the first gate groove, the second gate groove, the third gate groove, and the fourth gate groove are all annular, the first sealing surface, the first communication groove, the second sealing surface, the second communication groove, and the third sealing surface are all annular, and the first sealing surface, the second sealing surface, and the third sealing surface are located in the same circumferential surface.
6. The soft water valve of any one of claims 1-5, wherein the valve body comprises a body having an interior cavity with an opening at one end and an end cap that covers the opening of the valve body and encloses the valve body to form the valve cavity.
7. The soft water valve of claim 6, wherein,
The piston rod extends out of the valve body through the end cover, the proximal cavity is adjacent to the end cover, and the valve cavity is provided with a bottom surface opposite to the end cover;
The soft water valve further comprises an annular shaped grill having a recess facing the bottom surface, the distal cavity being formed between the recess and the bottom surface; the spacer group is tightly pressed between the end cover and the special-shaped grating.
8. The soft water valve of any one of claims 1-5, wherein the piston body is integrally provided, the piston assembly further comprising a connector disposed on the piston rod, the connector being in limited engagement with the piston rod in a telescoping direction of the piston rod, and a fastener engaged with the piston body to limit the connector in the telescoping direction.
9. The soft water valve of claim 8, wherein the valve is configured to,
The piston body is integrally injection molded, the piston body is provided with a cavity which extends along the expansion direction and is penetrated at two ends, and the inner wall surface of the cavity is provided with a step surface;
the outer peripheral surface of the piston rod is provided with a through hole, and the connecting piece is in a strip shape and penetrates through the through hole; the fastener is annularly arranged and embedded in the cavity, an annular space formed between the inner annular surface of the fastener and the outer peripheral surface of the piston rod is communicated with the cavity, and the connecting piece is clamped between the step surface and the fastener.
10. A water softener comprising an ion exchange tank, a salt tank, and a soft water valve according to any one of claims 1-9.
CN201810409439.8A 2018-04-28 2018-04-28 Soft water valve and water softener Active CN110410530B (en)

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CN201810409439.8A CN110410530B (en) 2018-04-28 2018-04-28 Soft water valve and water softener
PCT/CN2018/111215 WO2019205525A1 (en) 2018-04-28 2018-10-22 Water softener valve and water softener
US16/179,945 US20190072208A1 (en) 2018-04-28 2018-11-04 Water softener valve and water softener

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CN112943976B (en) * 2021-03-31 2022-07-22 南京福碧源环境技术有限公司 Full-function automatic water treatment control valve

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CN202302092U (en) * 2011-11-02 2012-07-04 南京福碧源环境技术有限公司 Multifunctional control valve
JP2014062605A (en) * 2012-09-21 2014-04-10 Miura Co Ltd Flow path control valve
CN106286889A (en) * 2015-05-11 2017-01-04 浙江盾安禾田金属有限公司 Six-way transfer valve and air conditioning system
CN208348570U (en) * 2018-04-28 2019-01-08 佛山市顺德区美的饮水机制造有限公司 Soft water valve and water softening device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867961A (en) * 1973-11-16 1975-02-25 Calgon Corp Control valve for water conditioners
CN201162848Y (en) * 2008-02-28 2008-12-10 兰州洁明之晨水处理设备有限公司 Full-automatic hydraulic control multipath pile-up valve for water treatment
CN202302092U (en) * 2011-11-02 2012-07-04 南京福碧源环境技术有限公司 Multifunctional control valve
JP2014062605A (en) * 2012-09-21 2014-04-10 Miura Co Ltd Flow path control valve
CN106286889A (en) * 2015-05-11 2017-01-04 浙江盾安禾田金属有限公司 Six-way transfer valve and air conditioning system
CN208348570U (en) * 2018-04-28 2019-01-08 佛山市顺德区美的饮水机制造有限公司 Soft water valve and water softening device

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