CN106122564A - A kind of have the anti-blocking and waste water ratio electromagnetic valve of silencing function - Google Patents
A kind of have the anti-blocking and waste water ratio electromagnetic valve of silencing function Download PDFInfo
- Publication number
- CN106122564A CN106122564A CN201610763199.2A CN201610763199A CN106122564A CN 106122564 A CN106122564 A CN 106122564A CN 201610763199 A CN201610763199 A CN 201610763199A CN 106122564 A CN106122564 A CN 106122564A
- Authority
- CN
- China
- Prior art keywords
- waste water
- hole
- blocking
- cushion chamber
- electromagnetic valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 82
- 230000030279 gene silencing Effects 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 6
- 238000001223 reverse osmosis Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 108091006146 Channels Proteins 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 102000010637 Aquaporins Human genes 0.000 description 2
- 108010063290 Aquaporins Proteins 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 239000000872 buffer Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The present invention relates to the waste water ratio electromagnetic valve in a kind of water treatment field, particularly relating to can the anti-blocking and waste water ratio electromagnetic valve of silencing function.The present invention adopts the following technical scheme that, a kind of have the anti-blocking and waste water ratio electromagnetic valve of silencing function, it is characterized in that: the side of described valve body is provided with containing cavity, waste water bar it is plugged with in this containing cavity, a cushion chamber is formed between middle part and the inwall of containing cavity of waste water bar, the anti-blocking pin hole between through intake tunnel and cushion chamber it is provided with on described valve body, the waste water hole of through cushion chamber and exhalant canal it is provided with on described waste water bar, the aperture of described anti-blocking pin hole is less than the aperture of waste water hole, the water of intake tunnel can be from anti-blocking pin hole, flow out from exhalant canal after cushion chamber and waste water hole.By using such scheme, the present invention overcomes the problem that prior art exists, it is provided that a kind of novel waste water ratio electromagnetic valve being well possible to prevent waste water hole reduction noise blocked, effective.
Description
Technical field
The present invention relates to the waste water ratio electromagnetic valve in a kind of water treatment field, particularly relate to have anti-blocking and silencing function
Waste water ratio electromagnetic valve.
Background technology
Waste water ratio electromagnetic valve plays extremely important effect in the water treatment facilities such as reverse osmosis water purifier and Drinking fountain.
At concentrated water discharge mouth, waste water ratio electromagnetic valve is installed, when waste water ratio electromagnetic valve is not powered on, can pass through through pretreated tap water
Reverse osmosis membrane is further processed, and produces water and flows out from the outlet of reverse osmosis filter element, and the dense water of output is through waste water ratio electromagnetic valve
Flow out.
During waste water ratio electromagnetic valve energising, the tap water of pretreatment enters reverse osmosis filter element, due to now waste water ratio electromagnetic valve
Valve port is opened, and dense water communicates with discharge outlet, and before reverse osmosis membrane, pressure is the least, and pretreated tap water is with larger flow and higher
Flow velocity flows out from reverse osmosis membrane surface, the pollutant on flushing membrane surface, prevents film surface scale, extends the life-span of film.But it is existing
Some waste water ratio electromagnetic valves are owing to unreasonable structure is easily stifled (plug) and has noise.
Summary of the invention
The present invention overcomes the problem that prior art exists, it is provided that one is well possible to prevent waste water hole blocked, effective
Reduce the novel waste water ratio electromagnetic valve of noise.
Realizing above-mentioned purpose, the present invention adopts the following technical scheme that, a kind of have the anti-blocking and waste water ratio electricity of silencing function
Magnet valve, includes valve body, diaphragm and electromagnetic control apparatus, described valve body is provided with intake tunnel and exhalant canal, barrier film
Sheet is positioned at the top of the valve seat of valve body, and it is water storage cavity that diaphragm is positioned at electromagnetic control apparatus side, and diaphragm is provided with two
The through hole that individual aperture is different, the diameter through hole that its mesoporous is bigger is correspondingly arranged with exhalant canal, and electromagnetic control apparatus
Core ends coordinates control and conducting or Guan Bi, the less minor diameter through hole in described aperture and inlet through hole pair with diameter through hole
Should arrange, minor diameter through hole makes intake tunnel through with water storage cavity, it is characterised in that: the side of described valve body is provided with accommodating
Chamber, is plugged with waste water bar in this containing cavity, form a cushion chamber, described valve between middle part and the inwall of containing cavity of waste water bar
The anti-blocking pin hole being provided with on body between through intake tunnel and cushion chamber, described waste water bar is provided with through cushion chamber and goes out
The waste water hole of aquaporin, the aperture of described anti-blocking pin hole is less than the aperture of waste water hole, and the water of intake tunnel can pass sequentially through anti-
Flow out from exhalant canal after stifled pin hole, cushion chamber and waste water hole.
By using such scheme, the embodiment of the present invention provides a kind of there is anti-blocking and noise reduction waste water ratio electromagnetic valve,
Easily block and the problem of waste water abnormal sound with the waste water hole of waste water ratio electromagnetic valve in solution prior art.Water treatment field for many years one
Directly there is the susceptible to plugging phenomenon of waste water hole, the present invention increases N number of anti-blocking pin hole less than that in this waste water hole front portion, at knot
Play a role in filtering on structure, thus can solve the susceptible to plugging problem of waste water hole.It it is exactly also water treatment field for many years
Directly there is the abnormal sound that waste water hole causes, this structure uses and adds a noise-reducing structure in the side of electromagnetic valve, and flowing water passes through
Anti-blocking pin hole produces a stop, first flows into buffering cavity and buffers, adds anti-blocking pin hole and waste water hole has phase place
Difference, such abnormal sound just eliminates naturally.
The present invention is further arranged so that described anti-blocking pin hole is straight hole, and is positioned at the top of cushion chamber, anti-blocking pin hole
Being provided with multiple, waste water hole is radially arranged on waste water bar, and becomes vertical 90 degree of directions with anti-blocking pin hole；Described waste water bar can be inserted
That pulls out is arranged on valve body, and before and after waste water bar is positioned at cushion chamber, both sides are provided with sealing ring.
By using such scheme, make this product structure more reasonable, use convenient, the most anti-blocking pin hole and waste water
There are 90 degree of phase contrasts in hole, and such abnormal sound just eliminates naturally.
Below in conjunction with the accompanying drawings the embodiment of the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the sectional view of the waste water ratio electromagnetic valve of the embodiment of the present invention；
Fig. 2 is the structure chart of present example reflection waste water bar；
Fig. 3 is the A portion enlarged drawing of Fig. 2；
Reference: 1, valve body；2, anti-blocking pin hole；3, intake tunnel；4, cushion chamber；5, exhalant canal；6, water inlet；7, water outlet
Mouthful；8, barrier film；9, diaphragm；10, core cap；11, dynamic iron core；12, spring；13, guide rod；14, minor diameter through hole；15, waste water
Bar；16, O；17, O；18 claws；19, O is connect soon；20, waste water hole；21, water storage cavity；22, diameter through hole；
23, coil；24, valve seat.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further detail, but not as limitation of the present invention.
Seeing shown in Fig. 1 Fig. 3, according to embodiments of the invention, waste water ratio electromagnetic valve includes that valve body 1, valve body 1 have valve
Chamber, arranges multiple anti-blocking pin hole 2 in valve body 1, valve pocket is divided into inlet through hole 3 and cushion chamber 4 by anti-blocking pin hole 2, multiple anti-blocking
Pin hole 2 then defines intake antrum 3 and cushion chamber 4 crosses aquaporin, and waste water ratio electromagnetic valve also includes water inlet 6 and outlet 7, water inlet
Mouth 6 connects with intake tunnel 3, and outlet 7 also connects with exhalant canal 5.
Be provided with waste water bar 15 in the position of the cushion chamber 4 of waste water ratio electromagnetic valve, waste water hole 20 is radially arranged in waste water
On bar 15, and become waste water hole 20 and anti-blocking pin hole phase angle in 90 ° in vertical 90 degree of directions and waste water bar 15 with anti-blocking pin hole 2,
The waste water ratio electromagnetic valve that different wastewater flow requires can be realized by changing the waste water bar 15 of different waste water hole 20 size.Giving birth to
When producing this waste water ratio electromagnetic valve, suitable waste water bar can be used according to customer demand.
O 16 and O 17 are installed between waste water bar 15 and valve body 1, are tightly connected for realization, be possible to prevent to occur
Leakage problem；Waste water bar 15 uses vertical compression buckle-type to be connected with valve body 1, connect more convenient reliably；Improve waste water ratio electromagnetic valve
Security performance.
Being additionally provided with diaphragm 9 in valve body 1, diaphragm 9 is arranged on above valve seat 24, is water storage cavity 21 above diaphragm.
Guide rod 13 is provided with sliding channel, and diaphragm 9 is interspersed on barrier film 8, is arranged in sliding channel by barrier film 8, water storage cavity 21
With minor diameter through hole 14 by being arranged on diaphragm 9 connects between intake tunnel 3.
Coil 23, built with guide rod 13, dynamic iron core 11 and spring 12, is provided with sliding channel in guide rod 13, and dynamic iron core 11 stretches out
End is provided with core cap 10.Spring 12 one end is connected with guide rod 13, and one end is connected with dynamic iron core 11, and dynamic iron core 11 is at spring 12
Under effect, core cap 10 is arranged in module diameter through hole 22.
When being energized to coil 23, coil 23 produces magnetic field, and dynamic iron core 11 is by electromagnetic field active force upwards, due to electricity
Magnetic field active force upwards is more than the downward elastic force of spring 12 and the deadweight of dynamic iron core 11, and dynamic iron core 11 moves upward, core cap
10 move upward therewith, and water storage cavity 21 current flow into exhalant canal 5 by diameter through hole 22, and the pressure making water storage cavity 21 is rapid
Decline.Pressure in intake tunnel 3 suffered by diaphragm 9 is more than the pressure in water storage cavity 21, and the current in intake tunnel 3 are by barrier film
Sheet 9 jack-up, intake tunnel 3 connects with exhalant canal 5, and communicates with the external world, and waste water ratio electromagnetic valve is opened.
When the open close electricity of coil 23, act on the active force upwards of the electromagnetic field on dynamic iron core 11 and disappear, at spring 12
Making capable dynamic iron core 11 move downward under elastic force effect, core cap 10 pushes down the diameter through hole 22 of diaphragm 9, and water inlet is logical simultaneously
Current in road 3 enter water storage cavity 21 through minor diameter through hole 14 so that the pressure in water storage cavity 21 rises rapidly.Along with water storage
Pressure in chamber 21 constantly rises, and acts on active force downward on diaphragm 9 and constantly increases so that diaphragm 9 moves downward,
Barrier film 8 is pressed on valve seat 24, intake tunnel 3 and exhalant canal 5 is split.Now the water in intake tunnel 3 can only be through anti-blocking
Pin hole 2 enters cushion chamber 4, then flows into exhalant canal 5 by the waste water hole 20 of waste water bar 15.
It is above the detailed embodiment of the present invention.It should be pointed out that, to those of ordinary skill in the art, not
On the premise of departing from its general principles, it is also possible to making other and improve, these improvement are also considered as protection scope of the present invention.
Claims (3)
1. there is an anti-blocking and waste water ratio electromagnetic valve for silencing function, include valve body, diaphragm and electromagnetic control apparatus, institute
Stating and be provided with intake tunnel and exhalant canal on valve body, diaphragm is positioned at the top of the valve seat of valve body, and diaphragm is positioned at electromagnetism
Controlling device side is water storage cavity, and diaphragm is provided with two different through holes in aperture, and the major diameter that its mesoporous is bigger is led to
Hole is correspondingly arranged with exhalant canal, and the core ends of electromagnetic control apparatus coordinates control and conducting or closes with diameter through hole
Closing, the less minor diameter through hole in described aperture is correspondingly arranged with inlet through hole, and minor diameter through hole makes intake tunnel pass through with water storage cavity
It is logical, it is characterised in that: the side of described valve body is provided with containing cavity, is plugged with waste water bar, the middle part of waste water bar in this containing cavity
And forming a cushion chamber between the inwall of containing cavity, described valve body is provided with between through intake tunnel and cushion chamber is anti-
Stifled pin hole, described waste water bar is provided with the waste water hole of through cushion chamber and exhalant canal, and the aperture of described anti-blocking pin hole is less than
The aperture of waste water hole, the water of intake tunnel flows out from exhalant canal after can passing sequentially through anti-blocking pin hole, cushion chamber and waste water hole.
The most according to claim 1 have the anti-blocking and waste water ratio electromagnetic valve of silencing function, it is characterised in that: described anti-blocking
Pin hole is straight hole, and is positioned at the top of cushion chamber, and anti-blocking pin hole is provided with multiple, and described waste water hole is radially arranged in waste water bar
On, and vertical 90 degree of directions are become with anti-blocking pin hole.
The most according to claim 1 and 2 have the anti-blocking and waste water ratio electromagnetic valve of silencing function, it is characterised in that: described
Waste water bar is pluggable to be arranged on valve body, and before and after waste water bar is positioned at cushion chamber, both sides are provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610763199.2A CN106122564B (en) | 2016-08-29 | 2016-08-29 | It is a kind of that there is anti-blocking and silencing function waste water ratio electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610763199.2A CN106122564B (en) | 2016-08-29 | 2016-08-29 | It is a kind of that there is anti-blocking and silencing function waste water ratio electromagnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106122564A true CN106122564A (en) | 2016-11-16 |
| CN106122564B CN106122564B (en) | 2018-03-23 |
Family
ID=57272298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610763199.2A Active CN106122564B (en) | 2016-08-29 | 2016-08-29 | It is a kind of that there is anti-blocking and silencing function waste water ratio electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106122564B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555900A (en) * | 2017-01-16 | 2017-04-05 | 浙江达威电子股份有限公司 | A kind of waste water ratio electromagnetic valve of anti-blocking self-cleaning |
| CN108006304A (en) * | 2017-12-28 | 2018-05-08 | 温州大阳科技有限公司 | A kind of integration module washes film solenoid valve |
| CN108223889A (en) * | 2017-12-26 | 2018-06-29 | 浙江美硕电气科技股份有限公司 | A kind of quick connecting with water valve of high leakproofness |
| CN108980403A (en) * | 2018-06-26 | 2018-12-11 | 浙江沁园水处理科技有限公司 | A kind of inlet valve and its water purifier with flowmeter |
| CN109373043A (en) * | 2018-10-12 | 2019-02-22 | 余姚市普润净水设备有限公司 | Anti-blocking multifunctional electromagnetic valves |
| CN109469737A (en) * | 2017-09-08 | 2019-03-15 | 佛山市顺德区美的饮水机制造有限公司 | Wastewater valve and purifier with it |
| CN109578669A (en) * | 2018-12-03 | 2019-04-05 | 金华市宏昌电器有限公司 | A kind of noise reduction waste water solenoid valve |
| CN109654233A (en) * | 2019-01-25 | 2019-04-19 | 浙江科博电器有限公司 | Wastewater valve with scale-deposit-preventing and silencing function |
| CN109737212A (en) * | 2019-01-25 | 2019-05-10 | 浙江科博电器有限公司 | A kind of wastewater valve with scale-deposit-preventing and silencing function |
| CN110925445A (en) * | 2018-09-20 | 2020-03-27 | 株式会社三国 | Proportional electromagnetic valve |
| CN112797182A (en) * | 2021-01-19 | 2021-05-14 | 宁波佳音机电科技股份有限公司 | Waste water electromagnetic valve |
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| CN202392256U (en) * | 2012-01-11 | 2012-08-22 | 周建祥 | Combined solenoid valve |
| CN104405950A (en) * | 2014-11-28 | 2015-03-11 | 温州大阳科技有限公司 | Self-cleaning waste water electromagnetic valve |
| CN204628788U (en) * | 2015-05-21 | 2015-09-09 | 浙江科博电器有限公司 | The waste water ratio electromagnetic valve of noise can be reduced |
| CN206017961U (en) * | 2016-08-29 | 2017-03-15 | 浙江达威电子股份有限公司 | A kind of waste water ratio electromagnetic valve with anti-blocking and silencing function |
-
2016
- 2016-08-29 CN CN201610763199.2A patent/CN106122564B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS63118484U (en) * | 1987-01-26 | 1988-07-30 | ||
| CN202140577U (en) * | 2011-07-14 | 2012-02-08 | 杨迎龙 | Waste water ratio solenoid valve |
| CN202392256U (en) * | 2012-01-11 | 2012-08-22 | 周建祥 | Combined solenoid valve |
| CN104405950A (en) * | 2014-11-28 | 2015-03-11 | 温州大阳科技有限公司 | Self-cleaning waste water electromagnetic valve |
| CN204628788U (en) * | 2015-05-21 | 2015-09-09 | 浙江科博电器有限公司 | The waste water ratio electromagnetic valve of noise can be reduced |
| CN206017961U (en) * | 2016-08-29 | 2017-03-15 | 浙江达威电子股份有限公司 | A kind of waste water ratio electromagnetic valve with anti-blocking and silencing function |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555900A (en) * | 2017-01-16 | 2017-04-05 | 浙江达威电子股份有限公司 | A kind of waste water ratio electromagnetic valve of anti-blocking self-cleaning |
| CN109469737A (en) * | 2017-09-08 | 2019-03-15 | 佛山市顺德区美的饮水机制造有限公司 | Wastewater valve and purifier with it |
| CN109469737B (en) * | 2017-09-08 | 2020-04-28 | 佛山市顺德区美的饮水机制造有限公司 | Waste water valve and water purification equipment with same |
| CN108223889A (en) * | 2017-12-26 | 2018-06-29 | 浙江美硕电气科技股份有限公司 | A kind of quick connecting with water valve of high leakproofness |
| CN108006304A (en) * | 2017-12-28 | 2018-05-08 | 温州大阳科技有限公司 | A kind of integration module washes film solenoid valve |
| CN108006304B (en) * | 2017-12-28 | 2024-02-20 | 温州大阳科技有限公司 | Membrane washing electromagnetic valve of integrated module |
| CN108980403B (en) * | 2018-06-26 | 2019-12-13 | 浙江沁园水处理科技有限公司 | Water inlet valve with flow meter and water purifier thereof |
| CN108980403A (en) * | 2018-06-26 | 2018-12-11 | 浙江沁园水处理科技有限公司 | A kind of inlet valve and its water purifier with flowmeter |
| CN110925445A (en) * | 2018-09-20 | 2020-03-27 | 株式会社三国 | Proportional electromagnetic valve |
| CN109373043A (en) * | 2018-10-12 | 2019-02-22 | 余姚市普润净水设备有限公司 | Anti-blocking multifunctional electromagnetic valves |
| CN109373043B (en) * | 2018-10-12 | 2019-12-03 | 余姚市普润净水设备有限公司 | Anti-blocking multifunctional electromagnetic valves |
| CN109578669A (en) * | 2018-12-03 | 2019-04-05 | 金华市宏昌电器有限公司 | A kind of noise reduction waste water solenoid valve |
| CN109578669B (en) * | 2018-12-03 | 2024-05-14 | 浙江宏昌电器科技股份有限公司 | Noise reduction waste water electromagnetic valve |
| CN109737212A (en) * | 2019-01-25 | 2019-05-10 | 浙江科博电器有限公司 | A kind of wastewater valve with scale-deposit-preventing and silencing function |
| CN109654233A (en) * | 2019-01-25 | 2019-04-19 | 浙江科博电器有限公司 | Wastewater valve with scale-deposit-preventing and silencing function |
| CN109737212B (en) * | 2019-01-25 | 2023-11-14 | 浙江科博电器有限公司 | Waste water valve with anti-scale and silencing functions |
| CN109654233B (en) * | 2019-01-25 | 2024-01-16 | 浙江科博电器有限公司 | Waste water valve with anti-scale and silencing functions |
| CN112797182A (en) * | 2021-01-19 | 2021-05-14 | 宁波佳音机电科技股份有限公司 | Waste water electromagnetic valve |
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| CN106122564B (en) | 2018-03-23 |
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| CB02 | Change of applicant information |
Address after: Yueqing City Yonghe Street East Industrial Road 325000 two functional areas in Zhejiang province Wenzhou City No. 12 Applicant after: ZHEJIANG DAWEI ELECTRONIC Co.,Ltd. Address before: Yueqing City Yonghe Street East Industrial Road 325000 two functional areas in Zhejiang province Wenzhou City No. 12 Applicant before: ZHEJIANG DAWEI ELECTRICAL CO.,LTD. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A wastewater ratio solenoid valve with anti blocking and noise reduction functions Effective date of registration: 20231108 Granted publication date: 20180323 Pledgee: Bank of Wenzhou Limited by Share Ltd. Yueqing branch Pledgor: ZHEJIANG DAWEI ELECTRONIC Co.,Ltd. Registration number: Y2023330002545 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |