CN100366972C - Multiway valve driver for water softening device - Google Patents
Multiway valve driver for water softening device Download PDFInfo
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- CN100366972C CN100366972C CNB2006100578036A CN200610057803A CN100366972C CN 100366972 C CN100366972 C CN 100366972C CN B2006100578036 A CNB2006100578036 A CN B2006100578036A CN 200610057803 A CN200610057803 A CN 200610057803A CN 100366972 C CN100366972 C CN 100366972C
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Abstract
The present invention relates to the technical field of a hard water processing device, more specifically to a multi-way valve driving device for a water softener. The multi-way valve driving device for a water softener mainly comprises a driving box and a driving device arranged in the driving box, wherein a multi-way valve is arranged on the upper side of the driving box, and a manual knob is arranged on the lower bottom surface of the driving box; the manual knob is arranged on a channeling connection rod, and a driving gear is also arranged on the channeling connection rod; a driving motor and a drive wheel are arranged beside the driving gear; a special type cam which can slide and rotate on the channeling connection rod is arranged at the upper end of the channeling connection rod; a sliding groove is slantwise arranged on the cylindrical surface of the special type cam, and a piston connection rod is arranged in the center of the upper end of the sliding groove. A sliding fixed sleeve which can be used for limiting the movement of the cam is arranged outside the special type cam, a screw hole is arranged on a certain position of the sliding fixed sleeve, a screw is arranged in the screw hole, and the front end of the screw extends into the sliding groove of the cam; a control device for a salt valve is also arranged in the driving box. When a driving device of the salt valve adopts the structure, the driving shaft center of the cam and the movement shaft center of a piston are positioned on the same shaft line, and the structure is compact.
Description
Technical field:
The present invention relates to hard water treatment device technical field, more specifically to a kind of multiway valve driver for water softening device.
Background technique:
Softener is generally by the Ca in the ion exchange resin adsorbed water in the ion exchange resin jar
2+, Mg
2+Reach the purpose of purifying waste water with other impurity.The softener running generally comprises water purification running and two processes of regeneration backwash:
1. water purification operation, generally allow tap water under certain pressure (0.2-0.6Mpa), flow, by the multichannel valve pocket, enter the container (resin container) that ion exchange resin is housed, contained Na+ and the positive ion in the water (Ca2+, Mg2+ in the resin, Fe2+...... etc.) exchange, make the Ca2+ of container water outlet, the Mg2+ ion concentration reaches set requirement, has realized the softening of hard water.
2. the regeneration backwash is handled, and generally will pass through backwash, regeneration suction salt, displacement, just washes, process such as brine drum water filling:
A. backwash
After resin lost efficacy, before regenerating, first water from bottom to top carry out backwash.The purpose of backwash has two, and the one, by backwash, make the resin layer that compresses in service loosening, help resin particle and fully contact with regenerated liquid; The one, the suspended matter and the broken resin of resin surface accumulation are discharged with backwash water, thereby make the resistance to water-flow of exchanger can be not increasing.
B. salt (claiming to take out salt again) is inhaled in regeneration
Saline solution is under finite concentration, flow, and the resin layer of flowing through and losing efficacy makes it recover original exchange capacity.The general salt solution that adopts concentration 10%.Home-use softener generally adopts float valve to control the water yield of brine drum, is adding a certain amount of salt, thus the concentration of salt solution in the control resin bucket, and it takes out the salt time generally more than 30 minutes.
C. displacement (claiming again to clean at a slow speed)
After regenerated liquid has advanced, the saline solution that has neither part nor lot in the regeneration exchange is still arranged in the exchanger, the clear water that employing is less than or equal to the regenerated liquid flow velocity cleans (clean at a slow speed), and with the palingenesis that makes full use of saline solution and alleviate the load of just washing, purpose is the salt solution that flushing remains in resin layer.
D. just wash (Rapid Cleaning)
Purpose is to remove residual regeneration liquid waste and salt grain in the resin layer, usually with normal flow clean to water outlet qualified till.
E. the brine drum water filling is moisturizing
In brine drum, inject the water of the once required salt amount of solution regeneration.
Realize the process of above-mentioned complexity, just need comparatively complicated drive unit to control, the regeneration control of special softener.
U.S. Patent number is 5,628, a kind of softener of 899 patent disclosures, its drive unit as shown in figure 14, live axle 01 upper end is equipped with cam 02, cam 02 is column, its cylinder tiltedly is provided with chute 03, piston rod 04 is installed in the chute 03 and can slides in chute 03, and the upper end of piston rod 04 is equipped with the multi-way valve piston 05 of multi-way valve, and the cam 02 that drives by live axle 01 rotates, cam 02 drives piston 05 by connecting rod 04 and moves up and down, thereby reach the purpose of control softener operation, this driving device structure, cam 02 motion axle center and piston 05 motion axle center are in parastate, its frictional force is relatively large, the efficient of transmission is lower, and structure is also complicated, and volume is comparatively huge.
Summary of the invention:
The present invention is directed to the prior art deficiency, a kind of a kind of multiway valve driver for water softening device that overcomes above-mentioned shortcoming is provided.
The multiway valve driver for water softening device of employing of the present invention, it mainly comprises drive cassette and the drive unit in drive cassette, at the drive cassette upside multi-way valve is installed, be provided with hand knob at the drive cassette bottom surface, hand knob is installed on the channelling connecting rod, actuation gear also is installed on the channelling connecting rod, side at actuation gear is provided with drive motor and driving wheel, the channelling small end is provided with can be at the extraordinary cam of slip of channelling connecting rod and rotation, extraordinary cam is column, central position, extraordinary cam lower end is provided with the channelling hole, extraordinary cam cylinder tiltedly is provided with chute, and its central position, upper end is equipped with piston rod, is provided with the slip fixed cover that can limit camming movement outside extraordinary cam, the slip fixed cover is cup-shaped, the upper end is fixed on the last inwall of drive cassette, is provided with screw at slip fixed cover certain position, and screw is installed in the screw, the screw front end stretches in the chute of cam, also is provided with the salt control valve device in drive cassette.
Be provided with ball between the chute of described screw front end that is installed in the slip fixed cover and extraordinary cam.
Described extraordinary cam is the split nested structure, be that cam body is divided into split and following split, following split is that inner cylinder and outer sloping platform are combined integratedization structure, last split cup-shaped angular cut structure, the corresponding position of upper and lower split is provided with positioning pin hole, the inner cylinder of following split inserts in the cup of going up split, and at positioning pin hole pin is installed, and two angle edges of upper and lower split constitute the chute of extraordinary cam.
Described salt control valve device comprises salt threshold switch and salt valve control cam, the salt threshold switch is located at the top of drive cassette, salt valve control cam is arranged on bottom half, lower end, salt valve control cam bottom is provided with external gear pump, external gear pump and actuation gear engagement, the upper edge of salt valve control cam ringwise and be provided with stair-stepping salt valve control rail, the salt threshold switch withstands on the salt valve control rail, is provided with a rail length regulating device on salt valve control rail.
Its ladder surface linkage structure of described salt valve control rail is: on the certain-length first downstairs face, first vertical riser, first on ladder surface, slope sheet, the second downstairs face, second vertical riser, second ladder surface be connected successively with slope, constitute whole salt valve control rail.
The structure of described rail length regulating device is, a downstairs face at salt valve control rail leans on the position of vertical riser that a plurality of square column are set, square column is fan-shaped and arranges, installed inside rail length regulating device at salt valve control cam, the rail length regulating device is fan-shaped, the outer height of rail length regulating device is identical with the height of vertical riser, the lower edge of outer is provided with the square column hole that can cooperate with square column, the fan heart position of rail length regulating device is provided with the installation screw, and the rail adjustment device is installed in salt valve control cam by screw.
Outstanding effect of the present invention is: the drive unit that adopts the brine valve of this structure, drive extraordinary cam rotation by actuation gear, by the chute of extraordinary cam and the screw fit of slip fixed cover, the rotation of extraordinary cam is turned to be the multi-way valve piston up-down, reach the purpose that the control multi-way valve opens and closes, by cooperating of salt threshold switch cam and switch valve, thereby control salt valve and multi-way valve open and close, and reach processes such as backwash, the regeneration that the regeneration backwash of control softener handles is inhaled salt, displacement, just washed, brine drum water filling.The motion axle center of cam drive axle center and piston on an axis, its compact structure, between the screw of cam and slip fixed cover, be provided with ball reduce the friction, the transmission efficiency of whole driving mechanism is improved greatly.
Description of drawings:
Fig. 1 is a three-dimensional structure diagram of the present invention
Fig. 2 is STRUCTURE DECOMPOSITION Fig. 1 of the present invention
Fig. 3 is STRUCTURE DECOMPOSITION Fig. 2 of the present invention
Fig. 4 is STRUCTURE DECOMPOSITION Fig. 3 of the present invention
Fig. 5 is the structural representation of slip fixed cover of the present invention
Fig. 6 is the three-dimensional structure diagram of channelling connecting rod of the present invention and actuation gear
Fig. 7 is the stereochemical structure exploded view of extraordinary cam of the present invention
Fig. 8 is the STRUCTURE DECOMPOSITION figure that channelling connecting rod of the present invention is installed
Fig. 9 is STRUCTURE DECOMPOSITION Fig. 2 that channelling connecting rod of the present invention is installed
Figure 10 is STRUCTURE DECOMPOSITION Fig. 1 of salt valve control cam of the present invention
Figure 11 is STRUCTURE DECOMPOSITION Fig. 2 of salt valve control cam of the present invention
Figure 12 is STRUCTURE DECOMPOSITION Fig. 3 of salt valve control cam of the present invention
Figure 13 is the structural representation of working principle of the present invention
Figure 14 is the structural representation of U. S. Patent
Embodiment:
The following stated only is preferred embodiment of the present invention, does not therefore limit protection scope of the present invention.
The present invention adopts soft water consumption device multi-way valve drive unit, see shown in Fig. 1-9, it mainly comprises drive cassette 1 and the drive unit in drive cassette 1, at drive cassette 1 upside multi-way valve 10 is installed, be provided with hand knob 8 at drive cassette 1 bottom surface, hand knob 8 is installed in channelling connecting rod 2, channelling connecting rod 2 also is equipped with actuation gear 3, side at actuation gear 3 is provided with drive motor 7 and driving wheel 6, driving wheel 6 is installed on the output shaft of drive motor 7, can drive actuation gear 3 rotates, the upper end of channelling connecting rod 2 is provided with the extraordinary cam 4 that can slide and rotate on channelling connecting rod 2, extraordinary cam 4 is column, its central position, lower end is provided with channelling hole 41, its cylinder tiltedly is provided with chute 42, the center, upper end is equipped with piston rod 11, outside extraordinary cam 4, be provided with the slip fixed cover 43 that can limit extraordinary cam 4 motions, slip fixed cover 43 is cup-shaped, its upper end is fixed on the inwall of drive cassette 1, be provided with screw 45 at slip fixed cover 43 certain positions, screw 46 is installed in the screw 45, and screw 46 front ends stretch in the chute 42 of extraordinary cam 4, are provided with the salt control valve device in drive cassette 1.
When actuation gear 3 rotates, the 42 li slips of chute on extraordinary cam 4 cylinders of the screw 46 of slip fixed cover 43, extraordinary cam 4 can slide up and down along channelling connecting rod 2 when rotating, and moves up and down thereby drive multi-way valve piston 12.Between the chute 42 of screw 46 front ends and extraordinary cam 4, be provided with ball 47, can reduce friction between screw 46 and the chute 42 with this.
See shown in Figure 7, described extraordinary cam 4 also can be the split nesting type structure, be about to cam body and be divided into split 401 and following split 402, split 402 is inner cylinder and outer combined integratedization of sloping platform structure under it, last split 401 is a cup-shaped angular cut structure, be provided with channelling 404 in the cup, on, following split 401,402 corresponding position is provided with positioning pin hole 403, the interior main body of following split 402 is inserted in the cup of going up split 401, the channelling 404 of last split 401 inserts in the channelling hole 41 of split 402 down, and at positioning pin hole 403 installation pins, on, following split 401,402 liang of angle edges constitute the chute 42 of cam.Adopt this split nesting type structure, processing technology is fairly simple, and is also very convenient during installation.
See shown in Figure 10 and 4, described salt control valve device comprises switch valve 9 and salt valve control cam 5, switch valve 9 is located at drive cassette 1 top, salt valve control cam 5 is arranged on casing 1 bottom, salt valve control lower end, cam 5 bottom is provided with external gear pump 51, its external gear pump 51 and actuation gear 3 engagements, salt valve control cam 5 upper edges ringwise and be provided with stair-stepping salt valve control rail 52 are provided with a rail length regulating device 53 on salt valve control rail 52.Actuation gear 3 drives salt valve control cam 5 and rotates, and stair-stepping salt valve control rail 52 moves up and down salt threshold switch 9, thus the switching of control salt valve.
See shown in Figure 11, the ladder surface linkage structure of described salt valve control rail is: ladder surface 527 is connected successively with slope 528 on ladder surface 523 on the first downstairs face 521 of certain-length, first vertical riser 522, first, slope sheet 524, the second downstairs face 525, second vertical riser 526, second, constitutes whole salt valve and controls rail 52.When salt threshold switch 9 was positioned on first, second ladder surface 523,527, the salt valve was an opening state, and the length of ladder surface is controlled salt threshold switch 9 and opened and closed what of times.
See shown in Figure 12, described rail length regulating device 53, one second downstairs face 525 at salt valve control rail 52 leans on the position of second vertical riser 526 that a plurality of square column 529 are set, square column 529 is fan-shaped and arranges, the rail length regulating device 53 that has in the installed inside of square column 529, rail length regulating device 53 is fan-shaped, its outer height is identical with the height of vertical riser 526, the lower edge of outer is provided with the square column hole 531 that can cooperate with square column, the fan heart position of rail length regulating device 53 is provided with installs screw 532, and rail length regulating device 53 is installed on the salt valve control cam 52.During use,, control the opening time of salt threshold switch 9 according to the softener actual operation needs runnings time, by the rail length regulating device, terrace on suitably increasing and reducing and the length of ladder surface 527 on second.
The present invention also adopts free setting device, and time-setting mechanism generally comprises time gear, time set button and time control steering wheel, by their cooperation, finishes the regeneration running thereby regularly drive actuation gear.
Working principle of the present invention is as follows:
See shown in Figure 13, when the ion exchange resin jar 15 of softener does not need Regeneration Treatment, time-setting mechanism is separated driving wheel 6 and actuation gear 3, they will not be meshing with each other, drive unit is not worked, this moment, extraordinary cam 4 and multi-way valve piston 12 generally were positioned at extreme lower position, and salt threshold switch 9 is positioned at the neutral position of the second downstairs face 525.
In the time need carrying out Regeneration Treatment to the ion exchange resin jar 15 of softener, by time-setting mechanism or hand knob 8 driving wheel 6 and actuation gear 3 are meshing with each other, motor 7 drives actuation gear 3 and slowly rotates, and moves the backwash process of beginning soft water valve on the piston 12; When extraordinary cam 4 rotation peaks, the water inlet 101 of multi-way valve 10 is closed, and the cam 5 of salt valve control simultaneously turns to ladder surface 523 positions on first just, salt threshold switch 9 is opened, the resin layer that regeneration is flowed through and lost efficacy with saline solution makes it recover original exchange capacity, begins to take out the salt solution process; When salt valve control cam 5 turns to ladder surface 523 terminal positions on first, this moment, salt cellar bucket 16 interior salt solution were taken out to the greatest extent, extraordinary cam 4 turns over the extreme higher position, multi-way valve piston 12 moves down, and is a small amount of for flowing in the softening water, will the saline solution that have neither part nor lot in the regeneration exchange be arranged still in the resin container 15, the clear water that employing is less than or equal to the regenerated liquid flow velocity cleans, with the palingenesis that makes full use of saline solution and alleviate the load of just washing, flushing remains in the salt solution of resin layer, and beginning is cleaned at a slow speed; When salt valve control cam 5 changes the first downstairs face position 521, salt threshold switch 9 is closed at this moment, multi-way valve piston 12 moves down blocks water outlet 102, sewer is opened, beginning Rapid Cleaning process, its objective is and remove residual regeneration liquid waste and salt grain in the resin layer, clean till go out normal softened water with normal flow usually; When the position that moves to ladder surface 527 on slope 528 and second of salt valve control cam 5, multi-way valve piston 12 goes to minimum point at this moment, and sewer 103 is closed, and salt threshold switch 9 is opened, and current water inlet brine drum 16 in the beginning moisturizing stage, is finished regeneration process.
In a word, the drive unit of the brine valve of this structure, driving extraordinary cam 4 by actuation gear 3 rotates, and the chute 42 of extraordinary cam 4 cooperates with the screw 46 of slip fixed cover 43, make the rotation of extraordinary cam 4 turn to drive multi-way valve piston 12 to move up and down, reach the purpose that the control multi-way valve opens and closes, and cooperating by salt threshold switch cam 5 and salt threshold switch 9, thereby control salt valve and multi-way valve open and close, processes such as backwash, the regeneration that reaches the Regeneration Treatment of control softener is inhaled salt, displacement, just washed, the water filling of regenerative agent case.The motion axle center that extraordinary cam 4 drives axle center and multi-way valve piston 12 on an axis, its compact structure is provided with ball and reduces to rub between the screw 46 of extraordinary cam 4 and slip fixed cover 43, the transmission efficiency of whole driving mechanism is improved greatly.
Claims (6)
1. multiway valve driver for water softening device, it mainly comprises drive cassette (1) and the drive unit in drive cassette (1), at drive cassette (1) upside multi-way valve (10) is installed, be provided with hand knob (8) at drive cassette (1) bottom surface, it is characterized in that: hand knob (8) is installed on the channelling connecting rod (2), actuation gear (3) also is installed on the channelling connecting rod (2), side at actuation gear (3) is provided with drive motor (7) and driving wheel (6), channelling connecting rod (2) upper end is provided with can be at the extraordinary cam (4) of channelling connecting rod (2) slip and rotation, extraordinary cam (4) is column, extraordinary cam (4) central position, lower end is provided with channelling hole (41), extraordinary cam (4) cylinder tiltedly is provided with chute (42), its central position, upper end is equipped with piston rod (11), outside extraordinary cam (4), be provided with the slip fixed cover (43) that can limit extraordinary cam (4) motion, slip fixed cover (43) is cup-shaped, the upper end is fixed on the last inwall of drive cassette (1), be provided with screw at slip fixed cover (43) certain position, screw is installed in the screw, the screw front end stretches in the chute (42) of cam, also is provided with the salt control valve device in drive cassette (1).
2. multiway valve driver for water softening device according to claim 1 is characterized in that: be provided with ball (47) between the chute (42) of described screw front end that is installed in slip fixed cover (43) and extraordinary cam (4).
3. multiway valve driver for water softening device according to claim 1, it is characterized in that: described extraordinary cam (4) is the split nested structure, be that cam body is divided into split (401) and following split (402), the inner cylinder of following split (402) and outer sloping platform are combined integratedization structure, last split (401) is a cup-shaped angular cut structure, on, following split (401,402) corresponding position is provided with positioning pin hole (403), the inner cylinder of following split (402) inserts in the cup of going up split (401), and at positioning pin hole (403) installation pin, on, following split (401,402) two angle edges constitute the chute (42) of extraordinary cam (4).
4. multiway valve driver for water softening device according to claim 1, it is characterized in that: described salt control valve device comprises salt threshold switch (9) and salt valve control cam (5), salt threshold switch (9) is located at the top of drive cassette (1), salt valve control cam (5) is arranged on the bottom of drive cassette (1), salt valve control cam (5) lower end is provided with external gear pump (51), external gear pump (51) and actuation gear (3) engagement, the upper edge of salt valve control cam (5) ringwise and be provided with stair-stepping salt valve control rail (52), salt threshold switch (9) withstands on the salt valve control rail (52), is provided with a rail length regulating device (53) on salt valve control rail (52).
5. multiway valve driver for water softening device according to claim 4, it is characterized in that: its ladder surface linkage structure of described salt valve control rail (52) is: on the certain-length first downstairs face (521), first vertical riser (522), first on ladder surface (523), slope sheet (524), the second downstairs face (525), second vertical riser (526), second ladder surface (527) be connected successively with slope (528), constitute whole salt valve and control rail (52).
6. multiway valve driver for water softening device according to claim 4, it is characterized in that: described rail length regulating device (53) structure is, by second vertical riser (526) position a plurality of square column (529) are set at salt valve control rail (52) second downstairs faces (525), square column (529) is fan-shaped and arranges, at salt valve control cam (5) installed inside rail length regulating device (53), rail length regulating device (53) is fan-shaped, rail length regulating device (53) outer height is highly identical with second vertical riser (526), rail length regulating device (53) outer is provided with the square column hole (531) that can cooperate with square column (529), the fan heart position of rail length regulating device (53) is provided with installs screw (532), and it is installed in salt valve control cam (5) by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100578036A CN100366972C (en) | 2006-02-27 | 2006-02-27 | Multiway valve driver for water softening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100578036A CN100366972C (en) | 2006-02-27 | 2006-02-27 | Multiway valve driver for water softening device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1810661A CN1810661A (en) | 2006-08-02 |
| CN100366972C true CN100366972C (en) | 2008-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100578036A Expired - Fee Related CN100366972C (en) | 2006-02-27 | 2006-02-27 | Multiway valve driver for water softening device |
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| CN (1) | CN100366972C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173725B (en) * | 2007-09-26 | 2010-06-02 | G20工程有限公司 | Piston type ratio regulating valve control device and ratio regulating valve using the same |
| EP2646722A4 (en) * | 2010-12-03 | 2015-10-14 | Kinetico Inc | Control valve for a water treatment system |
| CN103363062A (en) * | 2012-04-09 | 2013-10-23 | 上海开能环保设备股份有限公司 | Cylindrical gear for control valve |
| CN110410505A (en) * | 2018-04-28 | 2019-11-05 | 芜湖美的厨卫电器制造有限公司 | Seal water structure, soft water valve and water softening device |
| CN110410565A (en) * | 2018-04-28 | 2019-11-05 | 佛山市顺德区美的饮水机制造有限公司 | Soft water valve and water softening device |
| CN110550764A (en) * | 2018-05-30 | 2019-12-10 | 宁波市科漫环保科技有限公司 | Water processor and shell thereof |
| CN109854800A (en) * | 2019-03-08 | 2019-06-07 | 开能健康科技集团股份有限公司 | The transmission mechanism of multi-way control valve and multi-way control valve including it |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0028049A1 (en) * | 1979-10-30 | 1981-05-06 | L.W. FLECKENSTEIN, INC., Société dite | Operating device for a water conditioning system |
| JPH07248282A (en) * | 1993-09-16 | 1995-09-26 | Mclane Res Lab Inc | Multiport valve for fluid delivery system |
| CN2440985Y (en) * | 2000-09-08 | 2001-08-01 | 深圳新世纪饮水科技有限公司 | Multiple way valve for water softening device |
| US6596159B1 (en) * | 2000-07-13 | 2003-07-22 | Maruyama Mfg. Co., Ltd. | Automatic regeneration valve for water softener |
| CN1463342A (en) * | 2001-06-21 | 2003-12-24 | 旭有机材工业株式会社 | Manifold valve |
| CN2760352Y (en) * | 2004-11-19 | 2006-02-22 | 朱正义 | Brine valve for water softener |
-
2006
- 2006-02-27 CN CNB2006100578036A patent/CN100366972C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0028049A1 (en) * | 1979-10-30 | 1981-05-06 | L.W. FLECKENSTEIN, INC., Société dite | Operating device for a water conditioning system |
| JPH07248282A (en) * | 1993-09-16 | 1995-09-26 | Mclane Res Lab Inc | Multiport valve for fluid delivery system |
| US6596159B1 (en) * | 2000-07-13 | 2003-07-22 | Maruyama Mfg. Co., Ltd. | Automatic regeneration valve for water softener |
| CN2440985Y (en) * | 2000-09-08 | 2001-08-01 | 深圳新世纪饮水科技有限公司 | Multiple way valve for water softening device |
| CN1463342A (en) * | 2001-06-21 | 2003-12-24 | 旭有机材工业株式会社 | Manifold valve |
| CN2760352Y (en) * | 2004-11-19 | 2006-02-22 | 朱正义 | Brine valve for water softener |
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| CN1810661A (en) | 2006-08-02 |
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Granted publication date: 20080206 Termination date: 20110227 |