A double valve body softening valve

Abstract

The present invention proposes a double valve body softening valve, which relates to the field of water treatment valves, including a valve body and an inlet and outlet water unit and a regeneration unit in the valve body, a water inlet, a water outlet, a drain port and a salt absorption port are arranged on the side wall of the valve body, a first valve cavity and a second valve cavity are arranged in communication in the valve body, and a first filter element interface and a second filter element interface are opened in the first valve cavity; the inlet and outlet water unit includes a first fixed valve plate, a first movable valve plate and a first driving device, and the first fixed valve plate and the first movable valve plate rotate and cooperate in the first valve cavity; the regeneration unit includes a second fixed valve plate, a second movable valve plate and a second driving device, and the second fixed valve plate and the second movable valve plate rotate and cooperate in the second valve cavity. The present invention uses the inlet and outlet water unit as a simple softening water valve body, so that the effective area of ​​the inlet and outlet water holes in the valve body can be freely adjusted according to needs within the effective area of ​​the inlet and outlet water pipe ports outside the valve body, etc.; and the cooperation of the double valve bodies simply realizes the regeneration function, greatly improves the use efficiency of the valve body, and has excellent performance.

Description

Technical Field

[0001] The invention belongs to the technical field of water treatment valve bodies, and specifically provides a double-valve-body softening valve. Background Art

[0002] In recent years, as control valves with flat sealing structures are increasingly used in the field of water treatment, the market has recognized the structure of flat valves. Most of the current industrial or civil water treatment systems use control valves to switch the flow path. The control valves of the softening system need to realize functions such as softening, backwashing, salt absorption, water replenishment to the salt box, and positive flushing. The control valves of the filtration system need to realize functions such as filtration, backwashing, and positive flushing.

[0003] Existing water treatment devices usually only have a softening system or a filtration system. When only a softening system is provided, in order to achieve the above-mentioned functions, its control valve needs to be divided into multiple diversion channels, and the effective area of ​​the inlet and outlet water holes in the valve body is much lower than the effective area of ​​the inlet and outlet water pipes outside the valve body, resulting in a small softened water flux; when only a filtration system is provided, the control valve of the filtration system can only achieve simple functions such as filtration, backwashing and forward flushing, and cannot regenerate the substances in the filter tank, affecting the filtration effect.

[0004] Accordingly, the art needs a double-valve-body softening valve to solve the above problems. Summary of the invention

[0005] The present invention provides a double-valve-body softening valve to solve the problem that the water treatment device in the prior art usually has only a single valve body, resulting in the function not being simple and powerful or the softened water flux not being simple and effective.

[0006] The technical solution of the present invention is implemented as follows: a double-valve body softening valve, comprising a valve body and a water inlet and outlet unit and a regeneration unit arranged in the valve body, the valve body side wall is provided with a water inlet, a water outlet, a drain port and a salt absorption port, the valve body is provided with a first valve cavity and a second valve cavity connected to each other, the first valve cavity is provided with a first filter element interface and a second filter element interface;

[0007] The water inlet and outlet unit comprises a first fixed valve plate, a first movable valve plate and a first driving device, wherein the first fixed valve plate and the first movable valve plate rotate and cooperate in the first valve chamber, and the first driving device drives the first movable valve plate and the first fixed valve plate to cooperate to connect the first filter element interface with the water inlet and the second filter element interface with the water outlet, so as to realize the function of normal water discharge; or cooperate to block the first filter element interface from being connected with the water inlet and the second filter element interface from being connected with the water outlet, so as to realize the function of temporary blocking;

[0008] The regeneration unit includes a second fixed valve plate, a second movable valve plate and a second driving device. The second fixed valve plate and the second movable valve plate rotate and cooperate in the second valve chamber. When the first movable valve plate and the first fixed valve plate are in a temporary blocking mode, the second driving device drives the second movable valve plate and the second fixed valve plate to cooperate to connect the second filter element interface with the water inlet and the first filter element interface with the drain port to realize a backwash function; or cooperate to connect the first filter element interface with the water inlet and the salt intake port and the second filter element interface with the drain port to realize a regeneration function; or cooperate to connect the first filter element interface with the water inlet and the second filter element interface with the drain port to realize a forward wash function; or cooperate to connect the water inlet with the salt intake port to realize a water injection function.

[0009] The technical effect of this solution is: the double-valve body softening valve of the present invention uses the water inlet and outlet unit as a simple water softening valve body, so that the water softening valve body can arbitrarily and freely design the water inlet and outlet hole areas in the valve body under the same installation size, that is, the water flow area of ​​the first filter element interface and the second filter element interface, until it exceeds the effective area of ​​the water inlet and outlet pipe openings outside the valve body, thereby improving the softening water efficiency of the softening valve; moreover, the double-valve body softening valve of the present invention can make the water inlet and outlet unit cooperate with the regeneration unit to realize the regeneration function, improve the filtering effect of the water treatment device, extend the service life of the water treatment device, and reduce the use cost, which is very conducive to promotion and use.

[0010] In the preferred technical solution of the above-mentioned double-valve body softening valve, the first fixed valve plate is provided with a first through hole, a second through hole and a first blind plate in sequence along the circumferential direction, the first through hole, the second through hole and the first blind plate are all arc fan-shaped structures and are arranged on the same central axis, and the second through hole includes a first water outlet through hole and a second water outlet through hole separated from each other;

[0011] The first valve cavity includes a first cavity, a second cavity and a third cavity, the first cavity and the second cavity are communicated with the first through hole and the second through hole respectively, the third cavity corresponds to the position of the first blind plate, the second cavity includes a partition beam and a first water outlet cavity and a second water outlet cavity divided into two parts by the partition beam, the second water outlet cavity is communicated with the water outlet, the third cavity includes a partition plate and a first fan-shaped cavity and a second fan-shaped cavity divided into two parts by the partition plate, the first cavity and the first fan-shaped cavity are communicated with the first filter element interface, and the first water outlet cavity and the second fan-shaped cavity are communicated with the second filter element interface;

[0012] The first movable valve plate is provided with a water hole connected to the water inlet, a first groove and a second blind plate along the circumferential direction. The water hole, the first groove and the second blind plate are all arc fan-shaped structures and are arranged on the same central axis.

[0013] The technical effect of this scheme is: when water is discharged normally, the first driving device drives the water hole on the first movable valve plate to communicate with the first through hole, the first groove is respectively connected with the first water outlet through hole and the second water outlet through hole, the second blind plate corresponds to the first blind plate, and the working process is: water enters the first valve cavity from the water inlet, and passes through the water hole, the first through hole and the first filter element interface in sequence into the tank body at the lower end of the valve body, and after being processed by the tank body, the water flows through the second filter element interface, the first water outlet cavity, the first water outlet through hole in sequence into the first groove, and turns into the second water outlet through hole and the second water outlet cavity through the first groove, and is finally discharged from the water outlet to achieve normal water discharge;

[0014] During temporary blocking, the first driving device drives the water hole on the first movable valve plate to block the first blind plate, the first groove to block the first through hole, and the second blind plate to block the second through hole, thereby blocking the water inlet from the first filter element interface and the water outlet from the second filter element interface, achieving temporary blocking and providing conditions for the operation of the regeneration unit.

[0015] In the preferred technical solution of the above-mentioned double-valve body softening valve, the second fixed valve plate is provided with nine through holes: through hole nine is arranged in the center, through hole one, through hole two, through hole three, through hole four, through hole five, through hole six, through hole seven and through hole eight are arranged in sequence at eight equal angles along the circumferential direction;

[0016] The second valve cavity includes nine cavities corresponding to and connected with the nine through holes on the second fixed valve plate: cavity one, cavity two, cavity three, cavity four, cavity five, cavity six, cavity seven, cavity eight and cavity nine, cavity nine is connected with the drain port, a third blind plate is arranged in cavity one, cavity five is connected with the salt absorption port, cavity two is connected with the second fan-shaped cavity, cavity six is ​​connected with the first fan-shaped cavity, cavity three is connected with the salt absorption port and the first fan-shaped cavity, cavity seven is connected with the second fan-shaped cavity, cavity four is connected with the first fan-shaped cavity, and cavity eight is connected with the second fan-shaped cavity;

[0017] The second movable valve plate is provided with a second groove and a water inlet hole connected to the water inlet, the second groove includes a central groove and a fan-shaped groove connected to each other, the central groove is connected to the through hole nine, and the fan-shaped groove and the water inlet hole are symmetrical about the center of the central groove.

[0018] The technical effect of this scheme is: when the water inlet and outlet units are discharging water normally, the second driving device drives the water inlet hole of the second movable valve plate to correspond to the through hole one, and the third blind plate in the cavity one blocks the water flow from entering, thereby ensuring the normal operation of the water inlet and outlet units; when the water inlet and outlet units are temporarily blocked, the second driving device drives the water inlet hole of the second movable valve plate to communicate with the through hole two, and the fan-shaped groove is connected with the through hole six, and enters the backwash mode: the water flows through the water inlet hole, the through hole two and the cavity two in turn into the second fan-shaped cavity, and enters the tank body at the bottom of the valve body through the second filter element interface, and after reverse flushing in the tank body, enters the first fan-shaped cavity through the first filter element interface, and passes through the cavity six, the through hole six into the fan-shaped groove and the central groove in turn, and enters the cavity nine through the through hole nine from the central groove, and is finally discharged from the drain port, thereby realizing the backwash function;

[0019] The second driving device drives the water inlet of the second movable valve plate to be connected with the through hole three, and the fan-shaped groove is connected with the through hole seven, and enters the regeneration mode: the water flows through the water inlet, through hole three and cavity three in sequence to enter the first fan-shaped cavity, and at the same time, the salt water inhaled by the salt intake port is mixed with the water flow and enters the first fan-shaped cavity, and enters the tank body at the bottom of the valve body through the first filter element interface, and after regenerating the substances in the tank body, enters the second fan-shaped cavity through the second filter element interface, and passes through cavity seven, through hole seven to enter the fan-shaped groove and the central groove in sequence, and enters cavity nine through through hole nine from the central groove, and is finally discharged from the drain port to realize the regeneration function;

[0020] The second driving device drives the water inlet hole of the second movable valve plate to communicate with the through hole four, and the fan-shaped groove is connected with the through hole eight, and enters the positive washing mode: the water flows through the water inlet hole, the through hole four and the cavity four in turn into the first fan-shaped cavity, and enters the tank body at the bottom of the valve body through the first filter element interface, and enters the second fan-shaped cavity through the second filter element interface after positive washing in the tank body, and passes through the cavity eight and the through hole eight to enter the fan-shaped groove and the central groove in turn, and enters the cavity nine through the through hole nine from the central groove, and is finally discharged from the drain port, realizing the positive washing function;

[0021] The second driving device drives the water inlet hole of the second movable valve plate to communicate with the through hole five, the fan-shaped groove corresponds to the through hole one, the third blind plate in the cavity one forms a blockage, and enters the water injection mode: water flows through the water inlet hole, through hole five, cavity five and the salt suction port in sequence into the salt box, and water is injected into the salt box to supplement the water, thereby realizing the water injection function.

[0022] In the preferred technical solution of the above-mentioned double-valve body softening valve, the opening angles of the first filter interface and the second filter interface are both 180°, the first fan-shaped cavity is connected to the first filter element interface, and the second fan-shaped cavity is connected to the second filter element interface.

[0023] The technical effect of this scheme is: on the basis of the structure of the above-mentioned water inlet and outlet units, the maximum opening of the first filter interface and the second filter interface is achieved, so that the water inlet and outlet flow in the valve body is as close as possible to the effective water flow area of ​​the inlet and outlet water pipes outside the valve body, thereby improving the filtered water flux and the soft water production efficiency.

[0024] In the preferred technical solution of the above-mentioned double-valve body softening valve, the first water outlet hole and the second water outlet hole are both arc fan-shaped structures, the first water outlet hole and the second water outlet hole are arranged on the same central axis and the first water outlet hole is located on the inner side of the second water outlet hole close to the axis.

[0025] The technical effect of this solution is: the first water outlet hole is set on the inner side of the second water outlet hole, so that the first water outlet hole directly corresponds to the second filter element interface, which is conducive to designing the connecting area between the second filter element interface and the first water outlet hole as large as possible, thereby improving the water flux.

[0026] In the preferred technical solution of the above-mentioned double-valve body softening valve, the central angles of the first through hole, the second through hole and the first blind plate are all 120 degrees, and the central angles of the water hole, the first groove and the second blind plate are all 120 degrees.

[0027] The technical effect of this solution is: the first through hole, the second through hole and the first blind plate divide the effective area of ​​the first fixed valve plate for water inlet and outlet into three equal parts, and the water through hole, the first groove and the second blind plate are also arranged in three equal parts, which can better achieve the coordination between the first movable valve plate and the first fixed valve plate.

[0028] In the preferred technical solution of the above-mentioned double-valve body softening valve, the central axes of the water inlet and the water outlet are arranged at 180°.

[0029] The technical effect of this solution is: due to the internal structure limitations of the existing valve body, the water inlet and the water outlet are usually located on the same side of the valve body, or are distributed at an acute angle, making the installation process inconvenient. The water inlet and the water outlet of the present invention are located on both sides of the valve body, the installation space is large, and the installation is convenient. 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 these drawings without paying creative labor.

[0031] Figure 1 It is a schematic diagram of the overall structure of a double-valve body softening valve of the present invention;

[0032] Figure 2A top view of the internal structure of a first valve cavity and a second valve cavity of a double-valve body softening valve of the present invention;

[0033] Figure 3 A first perspective view of the internal structure of a first valve cavity and a second valve cavity of a double-valve body softening valve of the present invention;

[0034] Figure 4 A second perspective view of the internal structure of the first valve cavity and the second valve cavity of a double-valve body softening valve of the present invention;

[0035] Figure 5 It is a structural schematic diagram of a first fixed valve plate of a double-valve body softening valve of the present invention;

[0036] Figure 6 It is a structural schematic diagram of a first movable valve plate of a double-valve body softening valve of the present invention;

[0037] Figure 7 It is a schematic diagram of assembling a first fixed valve plate and a first movable valve plate of a double-valve body softening valve of the present invention;

[0038] Figure 8 It is a structural schematic diagram of a second fixed valve plate of a double-valve body softening valve of the present invention;

[0039] Fig. 9 It is a structural schematic diagram of a second movable valve plate of a double-valve body softening valve of the present invention;

[0040] Fig.10 It is a schematic diagram of assembling a second fixed valve plate and a second movable valve plate of a double-valve body softening valve of the present invention;

[0041] Fig.11 The figure is a top view of a double-valve-body softening valve of the present invention in a forward flushing mode.

[0042] List of reference numerals: 1, water inlet; 2, water outlet; 3, drain outlet; 4, salt absorption port; 5, first valve cavity; 51, first filter element interface; 52, second filter element interface; 53, communication port; 54, first cavity; 55, second cavity; 551, first water outlet cavity; 552, second water outlet cavity; 56, third cavity; 561, first fan-shaped cavity; 562, second fan-shaped cavity; 563, first communication port; 564, second communication port; 6, second valve cavity; 61, cavity one; 611, third blind plate; 62, cavity two; 63, cavity three; 64, cavity four; 65, cavity five; 66, cavity six; 67, cavity seven; 68, cavity eight; 69, cavity nine; 71, first fixed valve plate; 711, first through hole; 712, second through hole; 7121, first water outlet through hole; 7122, second water outlet through hole; 713, first blind plate; 72, first movable valve plate; 721, water through hole; 722, first groove; 723, second blind plate; 73, first driving device; 81, second fixed valve plate; 811, through hole one; 812, through hole two; 813, through hole three; 814, through hole four; 815, through hole five; 816, through hole six; 817, through hole seven; 818, through hole eight; 819, through hole nine; 82, second movable valve plate; 821, second groove; 8211, central groove; 8212, fan-shaped groove; 822, water inlet hole; 83, second driving device. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0045] A specific embodiment of a double valve body softening valve of the present invention:

[0046] like Figure 1 , Figure 2 and Figure 4As shown, a double-valve body softening valve comprises a valve body and a water inlet and outlet unit and a regeneration unit arranged in the valve body, a water inlet 1, a water outlet 2, a water outlet 3 and a salt absorption port 4 are arranged on the side wall of the valve body, a first valve cavity 5 and a second valve cavity 6 connected through a connecting port 53 are arranged in the valve body, and a first filter element interface 51 and a second filter element interface 52 are opened in the first valve cavity 5;

[0047] like Figure 1 , Figure 2 and Figure 7 As shown, the water inlet and outlet unit includes a first fixed valve plate 71, a first movable valve plate 72 and a first driving device 73. The first fixed valve plate 71 and the first movable valve plate 72 rotate and cooperate in the first valve chamber 5. The first driving device 73 drives the first movable valve plate 72 and the first fixed valve plate 71 to cooperate to connect the first filter element interface 51 with the water inlet 1 and the second filter element interface 52 with the water outlet 2, so as to achieve the function of normal water discharge; or cooperate to block the first filter element interface 51 from being connected to the water inlet and block the second filter element interface 52 from being connected to the water outlet 2, so as to achieve the function of temporary blocking;

[0048] like Figure 1 , Figure 2 and Fig.10 As shown, the regeneration unit includes a second fixed valve plate 81, a second movable valve plate 82 and a second driving device 83. The second fixed valve plate 81 and the second movable valve plate 82 rotate and cooperate in the second valve chamber 6. When the first movable valve plate 72 and the first fixed valve plate 71 are in a temporary blocking mode, the second driving device 83 drives the second movable valve plate 82 and the second fixed valve plate 81 to cooperate to connect the second filter element interface 52 with the water inlet 1 and the first filter element interface 51 with the drain port 3 to realize the backwash function; or cooperate to connect the first filter element interface 51 with the water inlet 1 and the salt intake port 4 and the second filter element interface 52 with the drain port 3 to realize the regeneration function; or cooperate to connect the first filter element interface 51 with the water inlet 1 and the second filter element interface 52 with the drain port 3 to realize the forward washing function; or cooperate to connect the water inlet 1 with the salt intake port 4 to realize the water injection function.

[0049] like Figure 5 As shown, the first fixed valve plate 71 is sequentially provided with a first through hole 711, a second through hole 712 and a first blind plate 713 along the circumferential direction; the first through hole 711, the second through hole 712 and the first blind plate 713 are all arc fan-shaped structures and are arranged with the same center axis; the second through hole 712 includes a first water outlet through hole 7121 and a second water outlet through hole 7122 separated from each other.

[0050] like Figure 2 , Figure 3 and Figure 4As shown, the first valve chamber 5 includes a first chamber 54, a second chamber 55 and a third chamber 56. The first chamber 54 and the second chamber 55 are respectively connected to the first through hole 711 and the second through hole 712. The third chamber 56 corresponds to the position of the first blind plate 713. The second chamber 55 includes a partition beam and a first water outlet chamber 551 and a second water outlet chamber 552 divided into two parts by the partition beam. The second water outlet chamber 552 is connected to the water outlet 2. The third chamber 56 includes a partition plate and a first fan-shaped chamber 561 and a second fan-shaped chamber 562 divided into two parts by the partition plate. The first chamber 54 and the first fan-shaped chamber 561 are connected to the first filter element interface 51, and the first water outlet chamber 551 and the second fan-shaped chamber 562 are connected to the second filter element interface 52.

[0051] like Figure 6 As shown, the first movable valve plate 72 is provided with a water hole 721 connected to the water inlet 1, a first groove 722 and a second blind plate 723 along the circumferential direction. The water hole 721, the first groove 722 and the second blind plate 723 are all arc fan-shaped structures and are arranged on the same central axis.

[0052] like Figure 3 and Figure 7 As shown, when water is discharged normally, the first driving device 73 drives the water hole 721 on the first movable valve plate 72 to communicate with the first through hole 711, and the first groove 722 is respectively connected with the first water outlet through hole 7121 and the second water outlet through hole 7122, and the second blind plate 723 corresponds to the first blind plate 713. The working process is: water enters the first valve cavity 5 from the water inlet 1, and passes through the water hole 721, the first through hole 711 and the first filter element interface 51 in sequence to enter the tank body at the lower end of the valve body. After being processed by the tank body, the water flows through the second filter element interface 52, the first water outlet cavity 551, and the first water outlet through hole 7121 in sequence to enter the first groove 722, and flips into the second water outlet through hole 7122 and the second water outlet cavity 552 through the first groove 722, and is finally discharged from the water outlet 2 to achieve normal water discharge.

[0053] During temporary blocking, the first driving device 73 drives the water hole 721 on the first movable valve plate 72 to block the first blind plate 713, the first groove 722 to block the first through hole 711, and the second blind plate 723 to block the second through hole 712, thereby blocking the water inlet 1 from the first filter element interface 51 and the water outlet 2 from the second filter element interface 52, thereby achieving temporary blocking and providing conditions for the operation of the regeneration unit.

[0054] like Figure 8As shown, the second fixed valve plate 81 is provided with nine through holes: through hole nine 819 is arranged in the center, through hole one 811, through hole two 812, through hole three 813, through hole four, through hole five 814; through hole four 815, through hole six 816, through hole seven 817 and through hole eight 818 are arranged in sequence at eight equal angles along the circumferential direction.

[0055] like Figure 3 and Figure 4 As shown, the second valve chamber 6 includes nine chambers which are respectively connected to the nine through holes on the second fixed valve plate 81: chamber one 61, chamber two 62, chamber three 63, chamber four 64, chamber five 65, chamber six 66, chamber seven 67, chamber eight 68 and chamber nine 69. Chamber nine 69 is connected to the drain port 3. A third blind plate 611 is arranged in chamber one 61. Chamber five 65 is connected to the salt intake port 4. Chamber two 62, chamber seven 67 and chamber eight 68 are connected to the second fan-shaped chamber 562 through the second connecting port 564. Chamber three 63, chamber four 64 and chamber six 66 are connected to the first fan-shaped chamber 561 through the first connecting port 563. Among them, chamber three 63 is also connected to the salt intake port 4.

[0056] like Fig. 9 As shown, the second movable valve plate 82 is provided with a second groove 821 and a water inlet hole 822 connected to the water inlet 1, the second groove 821 includes a central groove 8211 and a fan-shaped groove 8212 connected to each other, the central groove 8211 is connected to the through hole nine 819, and the fan-shaped groove 8212 and the water inlet hole 822 are symmetrical about the center of the central groove 8211.

[0057] When the water inlet and outlet unit is discharging water normally, the second driving device 83 drives the water inlet hole 822 of the second movable valve plate 82 to correspond to the through hole 1 811, and the third blind plate 611 in the cavity 1 61 blocks the water flow from entering, thereby ensuring the normal operation of the water inlet and outlet unit; when the water inlet and outlet unit is temporarily blocked, the second driving device 83 drives the second movable valve plate 82 and the second fixed valve plate 81 to cooperate to realize the functions of backwashing, regeneration, forward washing and water injection.

[0058] like Figure 2 , Figure 3 , Figure 4 and Fig.10As shown, specifically, the second driving device 83 drives the water inlet hole 822 of the second movable valve plate 82 to communicate with the through hole 2 812, and the fan-shaped groove 8212 is connected with the through hole 6 816 to enter the backwash mode: water enters the first valve chamber 5 from the water inlet 1, passes through the connecting port 53 between the first valve chamber 5 and the second valve chamber 6, and then enters the second valve chamber 6. After that, the water flows through the water inlet hole 822, the through hole 2 812, the cavity 2 62 and the second connecting port 564 in turn into the second fan-shaped cavity 562, and passes through the second filter element interface 52 into the tank body at the bottom end of the valve body. After reverse flushing in the tank body, the water flows through the first filter element interface 51 into the first fan-shaped cavity 561, and passes through the first connecting port 563, the cavity 6 66, the through hole 6 816 in turn into the fan-shaped groove 8212 and the central groove 8211, and enters the cavity 9 69 from the central groove 8211 through the through hole 9 819, and is finally discharged from the drain port 3 to realize the backwash function.

[0059] like Figure 2 , Figure 3 , Figure 4 and Fig.10 As shown, the second driving device 83 drives the water inlet hole 822 of the second movable valve plate 82 to communicate with the through hole three 813, and the fan-shaped groove 8212 is connected with the through hole seven 817 to enter the regeneration mode: the water flows through the water inlet hole 822, the through hole three 813, the cavity three 63 and the first connecting port 563 in sequence to enter the first fan-shaped cavity 561, and at the same time, the salt water is sucked into the salt water by the salt intake port 4 and mixed with the water flow to enter the first fan-shaped cavity 561, and enters the tank body at the bottom of the valve body through the first filter element interface 51, and enters the second fan-shaped cavity 562 through the second filter element interface 52 after regenerating the substances in the tank body, and enters the second fan-shaped cavity 562 through the second filter element interface 52, and passes through the second connecting port 564, the cavity seven 67, the through hole seven 817 in sequence to enter the fan-shaped groove 8212 and the central groove 8211, and enters the cavity nine 69 through the through hole nine 819 from the central groove 8211, and is finally discharged from the drain port 3 to realize the regeneration function.

[0060] like Figure 2 , Figure 3 , Figure 4 , Fig.10 and Fig.11As shown, the second driving device 83 drives the water inlet hole 822 of the second movable valve plate 82 to communicate with the through hole four 814, and the fan-shaped groove 8212 to communicate with the through hole eight 818, entering the positive washing mode: the water flows through the water inlet hole 822, the through hole four 814, the cavity four 64 and the first connecting port 563 in turn to enter the first fan-shaped cavity 561, and enters the tank body at the bottom of the valve body through the first filter element interface 51, and enters the second fan-shaped cavity 562 through the second filter element interface 52 after positive washing in the tank body, and passes through the second connecting port 564, the cavity eight 68, the through hole eight 818 to enter the fan-shaped groove 8212 and the central groove 8211 in turn, and enters the cavity nine 69 through the through hole nine 819 from the central groove 8211, and is finally discharged from the drain port 3 to realize the positive washing function.

[0061] like Figure 2 , Figure 3 , Figure 4 and Fig.10 As shown, the second driving device 83 drives the water inlet hole 822 of the second movable valve plate 82 to communicate with the through hole five 815, the fan-shaped groove 8212 corresponds to the through hole one 811, and the third blind plate 611 in the cavity one 61 forms a blockage, entering the water injection mode: water flows through the water inlet hole 822, the through hole five 815, the cavity five 65 and the salt intake port 4 in sequence into the salt box, and water is injected into the salt box to supplement the water, thereby realizing the water injection function.

[0062] like Figure 2 and Figure 3 As shown, in this embodiment, the opening angles of the first filter element interface 51 and the second filter element interface 52 are both 180°, and the first cavity 54 is connected to the first fan-shaped cavity 561 and corresponds to the position of the first filter interface. In this way, based on the structure of the above-mentioned water inlet and outlet unit, the maximum opening of the first filter interface and the second filter interface is achieved, so that the water flow in and out of the valve body is close to the effective water flow area of ​​the water inlet and outlet pipe outside the valve body to the maximum extent, thereby improving the filtered water flux and the soft water production efficiency.

[0063] like Figure 2 and Figure 5 As shown, in this embodiment, the first water outlet through hole 7121 and the second water outlet through hole 7122 are both in an arc fan-shaped structure, the first water outlet through hole 7121 and the second water outlet through hole 7122 are arranged with the same central axis, and the first water outlet through hole 7121 is located inside the second water outlet through hole 7122 and close to the axis. The first water outlet through hole 7121 is arranged inside the second water outlet through hole 7122 so that the first water outlet through hole 7121 directly corresponds to the second filter element interface 52, which is conducive to designing the connection area between the second filter element interface 52 and the first water outlet through hole 7121 as large as possible, thereby improving the water flux.

[0064] It should be noted that the first water outlet hole 7121 described in the above embodiment is located on the inner side of the second water outlet hole 7122 close to the axis, which is not the only arrangement method of the first water outlet hole 7121 and the second water outlet hole 7122. In other embodiments, those skilled in the art may also arrange the first water outlet hole and the second water outlet hole side by side in the circumferential direction according to actual conditions and needs. At the same time, the positions of the first water outlet cavity and the second water outlet cavity are also changed accordingly.

[0065] like Figure 5 As shown, in this embodiment, the central angles of the first through hole 711, the second through hole 712 and the first blind plate 713 are all 120 degrees, and the central angles of the water hole 721, the first groove 722 and the second blind plate 723 are all 120 degrees. The first through hole 711, the second through hole 712 and the first blind plate 713 divide the effective use area of ​​the water inlet and outlet of the first fixed valve plate 71 into three equal parts, and the water hole 721, the first groove 722 and the second blind plate 723 are also arranged in a way of dividing into three equal parts, which can better achieve the cooperation between the first movable valve plate 72 and the first fixed valve plate 71.

[0066] Due to the internal structure limitations of the existing valve body, the water inlet 1 and the water outlet 2 are usually located on the same side of the valve body, or are distributed at an acute angle, making the installation process inconvenient. Figure 1 and Figure 4 As shown, in this embodiment, the central axes of the water inlet 1 and the water outlet 2 are arranged at 180 degrees, so that the water inlet 1 and the water outlet 2 are located on both sides of the valve body, with a large installation space and convenient installation.

[0067] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double valve body softening valve, characterized in that: It includes a valve body, a water inlet and outlet unit and a regeneration unit arranged in the valve body. The valve body side wall is provided with a water inlet, a water outlet, a drain outlet and a salt absorption port, the valve body is provided with a first valve cavity and a second valve cavity which are connected, and the first valve cavity is provided with a first filter element interface and a second filter element interface; The double-valve body softening valve uses the water inlet and outlet units as a simple water softening valve body; The water inlet and outlet unit comprises a first fixed valve plate, a first movable valve plate and a first driving device, wherein the first fixed valve plate and the first movable valve plate rotate and cooperate in the first valve chamber, and the first driving device drives the first movable valve plate and the first fixed valve plate to cooperate to connect the first filter element interface with the water inlet and the second filter element interface with the water outlet, so as to realize the function of normal water discharge; or cooperate to block the first filter element interface from being connected with the water inlet and the second filter element interface from being connected with the water outlet, so as to realize the function of temporary blocking; The regeneration unit includes a second fixed valve plate, a second movable valve plate and a second driving device. The second movable valve plate is provided with a second groove and a water inlet hole communicating with the water inlet; The second fixed valve plate is provided with nine through holes: through hole nine is provided in the center, and through holes one, two, three, four, five, six, seven and eight are arranged in sequence at eight equal angles along the circumferential direction; The second valve cavity includes nine cavities correspondingly connected to the nine through holes on the second fixed valve plate: cavity one, cavity two, cavity three, cavity four, cavity five, cavity six, cavity seven, cavity eight and cavity nine; The cavity five is connected to the salt absorption port; The second fixed valve disc and the second movable valve disc rotate and cooperate in the second valve cavity. When the first movable valve disc and the first fixed valve disc are in a temporary blocking mode, the second driving device drives the second movable valve disc and the second fixed valve disc to cooperate to connect the second filter element interface with the water inlet and the first filter element interface with the drain port to realize the backwash function; or cooperate to connect the first filter element interface with the water inlet and the salt absorption port and the second filter element interface with the drain port to realize the regeneration function; or cooperate to connect the first filter element interface with the water inlet and the second filter element interface with the drain port to realize the forward wash function; Or cooperate to make water flow through the water inlet hole, the through hole five, the cavity five, and the salt suction port in sequence into the salt box, and fill the salt box with water to supplement it, thereby realizing the water injection function.

2. The double valve body softening valve according to claim 1, characterized in that: The first fixed valve plate is provided with a first through hole, a second through hole and a first blind plate in sequence along the circumferential direction, the first through hole, the second through hole and the first blind plate are all arc fan-shaped structures and are arranged on the same central axis, and the second through hole includes a first water outlet through hole and a second water outlet through hole separated from each other; The first valve cavity includes a first cavity, a second cavity and a third cavity, the first cavity and the second cavity are communicated with the first through hole and the second through hole respectively, the third cavity corresponds to the position of the first blind plate, the second cavity includes a partition beam and a first water outlet cavity and a second water outlet cavity divided into two parts by the partition beam, the second water outlet cavity is communicated with the water outlet, the third cavity includes a partition plate and a first fan-shaped cavity and a second fan-shaped cavity divided into two parts by the partition plate, the first cavity and the first fan-shaped cavity are communicated with the first filter element interface, and the first water outlet cavity and the second fan-shaped cavity are communicated with the second filter element interface; The first movable valve plate is provided with a water hole connected to the water inlet, a first groove and a second blind plate along the circumferential direction. The water hole, the first groove and the second blind plate are all arc fan-shaped structures and are arranged on the same central axis.

3. The double valve body softening valve according to claim 2, characterized in that: Cavity nine is connected with the drain port, a third blind plate is arranged in cavity one, cavity two is connected with the second fan-shaped cavity, cavity six is ​​connected with the first fan-shaped cavity, cavity three is connected with the salt absorption port and the first fan-shaped cavity, cavity seven is connected with the second fan-shaped cavity, cavity four is connected with the first fan-shaped cavity, and cavity eight is connected with the second fan-shaped cavity; The second groove includes a central groove and a fan-shaped groove that are connected to each other. The central groove is connected to the through hole nine. The fan-shaped groove and the water inlet hole are symmetrical about the center of the central groove.

4. The double valve body softening valve according to claim 3, characterized in that: The opening angles of the first filter element interface and the second filter element interface are both 180°, the first fan-shaped cavity is connected to the first filter element interface, and the second fan-shaped cavity is connected to the second filter element interface.

5. The double valve body softening valve according to claim 4, characterized in that: The first water outlet through hole and the second water outlet through hole are both in an arc fan-shaped structure. The first water outlet through hole and the second water outlet through hole are arranged on the same central axis, and the first water outlet through hole is located inside the second water outlet through hole close to the axis.

6. The double valve body softening valve according to claim 5, characterized in that: The central angles of the first through hole, the second through hole and the first blind plate are all 120 degrees, and the central angles of the water through hole, the first groove and the second blind plate are all 120 degrees.

7. The double-valve body softening valve according to claim 5, characterized in that: The central axes of the water inlet and the water outlet are arranged at 180 degrees.

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