CN113653821B - Liquid flow pipeline connection type liquid backflow prevention valve - Google Patents
Liquid flow pipeline connection type liquid backflow prevention valve Download PDFInfo
- Publication number
- CN113653821B CN113653821B CN202110978963.9A CN202110978963A CN113653821B CN 113653821 B CN113653821 B CN 113653821B CN 202110978963 A CN202110978963 A CN 202110978963A CN 113653821 B CN113653821 B CN 113653821B
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- China
- Prior art keywords
- liquid
- main
- hole
- valve rod
- auxiliary
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Classifications
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- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- 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
- F16K31/0668—Sliding 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
- 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
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a liquid flow pipeline connected type liquid backflow prevention valve, which comprises a bottom columnar shell. The invention uses electromagnetic principle as control medium, when the main electromagnet and the auxiliary electromagnet lose magnetism due to current closing, at this time, the main permanent magnet and the auxiliary permanent magnet can move to different directions under the action of the tension of the main spiral spring and the tension of the auxiliary spiral spring, wherein the valve rod can go deep into the valve rod hole under the action of the tension, the main liquid discharge hole is blocked, the liquid can not flow, meanwhile, the valve plate can move to the position far away from the main liquid inlet hole under the action of the main spiral spring, and the liquid can be further sucked due to the increase of the inner space, so that the liquid is stopped suddenly and the backflow can enter the liquid reserved space, thereby effectively preventing the backflow phenomenon formed when the liquid stops.
Description
Technical Field
The invention relates to the technical field of valve bodies, in particular to a liquid backflow prevention valve with a liquid flow pipeline connected.
Background
At present, most of existing backflow prevention valves are based on a one-way valve principle or a single closed switch, and in actual work, no matter when the one-way valve is closed or the single switch is closed, liquid impact phenomenon is caused by closing parts, so that tiny backflow phenomenon formed by overlarge pressure is caused.
Disclosure of Invention
The invention aims to provide a liquid flow pipeline connected type liquid backflow prevention valve so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a liquid flow pipeline connection formula prevents liquid backflow valve, includes bottom column shell, is located bottom column shell top, and the top column shell of integral type structure, installs the battery at a bottom column shell terminal surface and installs the current controller at the battery surface, the inside center of bottom column shell is equipped with liquid reserve space, and another terminal surface of bottom column shell is equipped with main feed liquor pipeline, and the inside of main feed liquor pipeline is equipped with the main feed liquor hole of one end intercommunication liquid reserve space, the one end of bottom column shell is equipped with the external reset hole in the intercommunication, a main coil spring is installed at the one end that is located the reset hole to liquid reserve space, a valve plate is laid to the one end of main coil spring, a main permanent magnet is inlayed to the inside of valve plate, the side mid-mounting of bottom column shell has two symmetrical main electro-magnet, one side of top column shell inside is equipped with the valve rod hole, the inside of bottom column shell and top column shell is equipped with the main drain hole of intercommunication liquid reserve space top and valve rod hole middle section bottom, the one end of valve rod hole is equipped with main part activity space, an auxiliary electromagnet is installed to one end of main part activity space, an auxiliary coil spring is located the top of a valve rod body is located the top of the side of the valve rod body, an auxiliary coil spring is located the top of the side of the valve rod, an auxiliary hole is laid at the top of the valve rod, an auxiliary hole is equipped with an auxiliary electromagnet.
Further, the initial length of the main coil spring is smaller than the distance between the reset hole and the main electromagnet.
Further, the bottom end of the main liquid discharging hole is communicated with the interval of the liquid reserved space between the main liquid inlet hole and the main electromagnet.
Further, the initial length of the secondary coil spring is smaller than the length of the active space of the main member.
Further, the length of the valve rod hole is smaller than that of the valve rod, and the sum of the thicknesses of the valve rod and the auxiliary permanent magnet is smaller than that of the main liquid discharging hole and the movable space of the main part.
Further, the power input end of the current controller is connected with the power output end of the storage battery through a wire, and the power control output end of the current controller is connected with the power control input ends of the main electromagnet and the auxiliary electromagnet through wires.
Compared with the prior art, the invention has the beneficial effects that: the invention uses electromagnetic principle as control medium, when the main electromagnet and the auxiliary electromagnet lose magnetism due to current closing, at this time, the main permanent magnet and the auxiliary permanent magnet can move to different directions under the action of the tension of the main spiral spring and the tension of the auxiliary spiral spring, wherein the valve rod can go deep into the valve rod hole under the action of the tension, the main liquid discharge hole is blocked, the liquid can not flow, meanwhile, the valve plate can move to the position far away from the main liquid inlet hole under the action of the main spiral spring, and the liquid can be further sucked due to the increase of the inner space, so that the liquid is stopped suddenly and the backflow can enter the liquid reserved space, thereby effectively preventing the backflow phenomenon formed when the liquid stops.
Drawings
FIG. 1 is a schematic diagram showing the front view of a liquid flow pipeline connected type liquid backflow prevention valve according to the present invention;
FIG. 2 is a schematic view showing the structure of a liquid flow pipeline connected type liquid backflow prevention valve in the direction A-A;
FIG. 3 is a schematic view showing the structure of a liquid flow pipeline connected type liquid backflow prevention valve in the direction B-B;
FIG. 4 is a schematic view showing the structure of a liquid flow pipeline connected type liquid backflow prevention valve in the C-C direction;
in the figure: 1, bottom columnar shell, 2, top columnar shell, 3, battery, 4, liquid headspace, 5, main liquid inlet pipe, 6, main liquid inlet hole, 7, reset hole, 8, main coil spring, 9, valve plate, 10, main permanent magnet, 11, main electromagnet, 12, main liquid discharge hole, 13, valve rod hole, 14, auxiliary discharge pipe, 15, auxiliary liquid discharge hole, 16, auxiliary electromagnet, 17, main part movable space, 18, auxiliary permanent magnet, 19, valve rod, 20, auxiliary coil spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, an embodiment of the present invention is provided: comprises a bottom columnar shell 1, a top columnar shell 2, a storage battery 3 and a current controller 4, wherein the top columnar shell 2 is arranged at the top of the bottom columnar shell 1 and is of an integral structure, the storage battery 3 is arranged on one end face of the bottom columnar shell 1, the current controller 4 is arranged on the surface of the storage battery 3, a liquid reserved space 4 is arranged in the center of the inside of the bottom columnar shell 1, a main liquid inlet pipeline 5 is arranged on the other end face of the bottom columnar shell 1, a main liquid inlet hole 6 with one end communicated with the liquid reserved space 4 is arranged in the main liquid inlet pipeline 5, a reset hole 7 communicated with the inside and the outside is arranged at one end of the bottom columnar shell 1, a main spiral spring 8 is arranged at one end of the reset hole 7, a valve plate 9 is arranged at one end of the main spiral spring 8, a main permanent magnet 10 is embedded in the valve plate 9, two symmetrical main electromagnets 11 are arranged in the middle of the side surfaces of the bottom columnar shell 1, a valve rod hole 13 is arranged on one side of the inside of the top columnar shell 2, a main liquid discharging hole 12 which is used for communicating the top of the liquid reserving space 4 and the bottom of the middle section of the valve rod hole 13 is arranged in the bottom columnar shell 1 and the inside of the top columnar shell 2, a main part movable space 17 is arranged at one end of the valve rod hole 13, a secondary electromagnet 16 is arranged at one end of the main part movable space 17, a secondary coil spring 20 is arranged in the main part movable space 17, a secondary permanent magnet 18 is arranged at one end of the secondary electromagnet 16, a valve rod 19 is arranged on the side surface of the valve rod hole 13, the rod body of the valve rod 19 is inserted into the inside of the valve rod hole 13, a secondary discharging pipeline 14 is arranged at the top of the top columnar shell 2, the auxiliary discharge pipeline 14 and the top columnar shell 2 are internally provided with an auxiliary liquid discharge hole 15 communicated with the top of the middle section of the valve rod hole 13.
The initial length of the main coil spring 8 is smaller than the distance between the return hole 7 and the main electromagnet 11.
The bottom end of the main liquid discharging hole 12 is communicated with the interval of the liquid reserved space 4 between the main liquid inlet hole 6 and the main electromagnet 11.
The initial length of the secondary coil spring 20 is smaller than the length of the main part movable space 17.
The length of the valve rod hole 13 is smaller than that of the valve rod 19, and the sum of the thicknesses of the valve rod 19 and the auxiliary permanent magnet 18 is smaller than that of the main liquid discharging hole 12 and the main part movable space 17, so that necessary blockage and valve opening work are realized.
The electric power input end of the current controller 4 is connected with the electric power output end of the storage battery 3 through a wire, and the electric power control output end of the current controller 4 is connected with the electric power control input ends of the main electromagnet 11 and the auxiliary electromagnet 16 through a wire, so that the control function on the current is realized.
The specific use mode is as follows: in the operation of the invention, the main liquid inlet pipeline 5 and the auxiliary liquid outlet pipeline 14 are respectively communicated with the liquid inlet pipeline and the liquid outlet pipeline, when the backflow is required to be closed, the main electromagnet 11 and the auxiliary electromagnet 16 lose magnetism due to the closing of current, at the moment, the main electromagnet 11 and the auxiliary electromagnet 16 respectively move in different directions under the action of the pulling force of the main spiral spring 8 and the pulling force of the auxiliary spiral spring 20, wherein the valve rod 19 can be penetrated into the valve rod hole 13 under the action of the pulling force, the main liquid outlet hole 12 is blocked, liquid cannot flow, meanwhile, the valve plate 9 can move to a position far away from the main liquid inlet hole 6 under the action of the main spiral spring 8, and the liquid is further sucked due to the increase of the inner space, so that the liquid which is suddenly stopped and flows back can enter the liquid reserved space 4, when the operation is required, the controller 4 is required to be opened first, and then the valve plate 9 is inserted into the reset hole 7 by a rod body.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a liquid flow pipeline connection formula prevents liquid backflow valve, includes bottom column shell (1), is located bottom column shell (1) top, and top column shell (2) of integral type structure, installs battery (3) at bottom column shell (1) an terminal surface and installs the current controller at battery (3) surface, its characterized in that: the utility model discloses a movable part of a bottom column casing (1), a valve plate (9) is placed at one end of the bottom column casing (1), a main liquid inlet pipeline (5) is arranged at the other end face of the bottom column casing (1), a main liquid inlet hole (6) with one end communicated with the liquid reserved space (4) is arranged in the main liquid inlet pipeline (5), a reset hole (7) communicated with the outside is arranged at one end of the bottom column casing (1), a main spiral spring (8) is installed at one end of the reset hole (7), a main permanent magnet (10) is embedded at one end of the main spiral spring (8) at one end of the valve plate (9), two symmetrical main electromagnets (11) are installed at the side middle part of the bottom column casing (1), a valve rod hole (13) is arranged at one side of the inside of the top column casing (2), a main liquid outlet hole (12) communicated with the top of the liquid reserved space (4) and the bottom of the valve rod hole (13), a main part movable part (17) is arranged at one end of the valve rod hole (13), a movable part (17) is installed at one end of the movable part of the main electromagnet (17), the auxiliary spiral spring (20) is characterized in that an auxiliary permanent magnet (18) is arranged at one end of the auxiliary electromagnet (16), a valve rod (19) is arranged on the side face of the valve rod hole (13) through the auxiliary permanent magnet (18), a rod body of the valve rod (19) is inserted into the valve rod hole (13), an auxiliary discharge pipeline (14) is arranged at the top of the top columnar shell (2), and auxiliary liquid discharge holes (15) communicated with the top of the middle section of the valve rod hole (13) are formed in the auxiliary discharge pipeline (14) and the top columnar shell (2).
2. The liquid flow conduit connected liquid backflow prevention valve of claim 1, wherein: the initial length of the main coil spring (8) is smaller than the distance between the reset hole (7) and the main electromagnet (11).
3. The liquid flow conduit connected liquid backflow prevention valve of claim 1, wherein: the bottom end of the main liquid discharging hole (12) is communicated with the section of the liquid reserved space (4) between the main liquid inlet hole (6) and the main electromagnet (11).
4. The liquid flow conduit connected liquid backflow prevention valve of claim 1, wherein: the initial length of the secondary coil spring (20) is smaller than the length of the main part movable space (17).
5. The liquid flow conduit connected liquid backflow prevention valve of claim 1, wherein: the length of the valve rod hole (13) is smaller than that of the valve rod (19), and the sum of the thicknesses of the valve rod (19) and the auxiliary permanent magnet (18) is smaller than that of the main liquid draining hole (12) and the main part movable space (17).
6. The liquid flow conduit connected liquid backflow prevention valve of claim 1, wherein: the power input end of the current controller is connected with the power output end of the storage battery (3) through a wire, and the power control output end of the current controller is connected with the power control input ends of the main electromagnet (11) and the auxiliary electromagnet (16) through wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110978963.9A CN113653821B (en) | 2021-08-25 | 2021-08-25 | Liquid flow pipeline connection type liquid backflow prevention valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110978963.9A CN113653821B (en) | 2021-08-25 | 2021-08-25 | Liquid flow pipeline connection type liquid backflow prevention valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113653821A CN113653821A (en) | 2021-11-16 |
| CN113653821B true CN113653821B (en) | 2023-08-29 |
Family
ID=78481906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110978963.9A Active CN113653821B (en) | 2021-08-25 | 2021-08-25 | Liquid flow pipeline connection type liquid backflow prevention valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113653821B (en) |
Citations (20)
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| JPH09296877A (en) * | 1996-05-02 | 1997-11-18 | Ishikawajima Harima Heavy Ind Co Ltd | Valve |
| GB0002894D0 (en) * | 1999-02-13 | 2000-03-29 | Ford John | Valve apparatus |
| JP2006200524A (en) * | 2004-12-22 | 2006-08-03 | Matsushita Electric Works Ltd | Diaphragm pump liquid discharge control apparatus |
| EP2230430A1 (en) * | 2009-03-16 | 2010-09-22 | Siemens Aktiengesellschaft | Combined regulating quick-acting valve for a steam turbine |
| JP2012233512A (en) * | 2011-04-28 | 2012-11-29 | Ckd Corp | Supply and discharge adjusting apparatus and supply and discharge adjusting system |
| CN202768906U (en) * | 2012-09-19 | 2013-03-06 | 浙江工贸职业技术学院 | Water hammer eliminating combined valve |
| CN202790588U (en) * | 2012-09-19 | 2013-03-13 | 浙江工贸职业技术学院 | Buffering type waterproof hammer valve |
| CN203431218U (en) * | 2013-08-29 | 2014-02-12 | 浙江工贸职业技术学院 | High-pressure resistant waterproof hammer valve |
| CN204153310U (en) * | 2014-09-19 | 2015-02-11 | 宁波埃美柯铜阀门有限公司 | Water hammer-resistant valve |
| WO2016192603A1 (en) * | 2015-06-05 | 2016-12-08 | 株洲南方阀门股份有限公司 | Water hammer-proof air valve and water hammer-proof exhaust method for in-use pipeline |
| WO2016195317A1 (en) * | 2015-06-02 | 2016-12-08 | 김진민 | Sealed electronic valve |
| CN107574876A (en) * | 2017-09-13 | 2018-01-12 | 张礼国 | A kind of municipal administration fire hydrant |
| CN111255702A (en) * | 2020-02-27 | 2020-06-09 | 刘延林 | Double-water-flow-control water flow supercharging device |
| CN211010062U (en) * | 2019-12-13 | 2020-07-14 | 厦门磐石芯科技有限公司 | Anti-freezing faucet |
| CN211779343U (en) * | 2020-02-26 | 2020-10-27 | 曾奇风 | Water-proof hammer valve |
| CN111853249A (en) * | 2020-07-31 | 2020-10-30 | 安徽宝龙电器有限公司 | Mining explosion-proof solenoid valve |
| CN112161107A (en) * | 2020-09-19 | 2021-01-01 | 陈翠华 | Water hammer effect damping type push-pull water faucet |
| CN112324978A (en) * | 2020-11-27 | 2021-02-05 | 远大阀门集团有限公司 | Composite exhaust valve with buffering waterproof hammer structure |
| CN212509767U (en) * | 2020-06-08 | 2021-02-09 | 路达(厦门)工业有限公司 | Electromagnetic valve for preventing water hammer |
| CN212564695U (en) * | 2020-06-28 | 2021-02-19 | 玉环新同心圆阀门有限公司 | Waterproof hammer buffering angle valve |
-
2021
- 2021-08-25 CN CN202110978963.9A patent/CN113653821B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09296877A (en) * | 1996-05-02 | 1997-11-18 | Ishikawajima Harima Heavy Ind Co Ltd | Valve |
| GB0002894D0 (en) * | 1999-02-13 | 2000-03-29 | Ford John | Valve apparatus |
| JP2006200524A (en) * | 2004-12-22 | 2006-08-03 | Matsushita Electric Works Ltd | Diaphragm pump liquid discharge control apparatus |
| EP2230430A1 (en) * | 2009-03-16 | 2010-09-22 | Siemens Aktiengesellschaft | Combined regulating quick-acting valve for a steam turbine |
| JP2012233512A (en) * | 2011-04-28 | 2012-11-29 | Ckd Corp | Supply and discharge adjusting apparatus and supply and discharge adjusting system |
| CN202768906U (en) * | 2012-09-19 | 2013-03-06 | 浙江工贸职业技术学院 | Water hammer eliminating combined valve |
| CN202790588U (en) * | 2012-09-19 | 2013-03-13 | 浙江工贸职业技术学院 | Buffering type waterproof hammer valve |
| CN203431218U (en) * | 2013-08-29 | 2014-02-12 | 浙江工贸职业技术学院 | High-pressure resistant waterproof hammer valve |
| CN204153310U (en) * | 2014-09-19 | 2015-02-11 | 宁波埃美柯铜阀门有限公司 | Water hammer-resistant valve |
| WO2016195317A1 (en) * | 2015-06-02 | 2016-12-08 | 김진민 | Sealed electronic valve |
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| CN211010062U (en) * | 2019-12-13 | 2020-07-14 | 厦门磐石芯科技有限公司 | Anti-freezing faucet |
| CN211779343U (en) * | 2020-02-26 | 2020-10-27 | 曾奇风 | Water-proof hammer valve |
| CN111255702A (en) * | 2020-02-27 | 2020-06-09 | 刘延林 | Double-water-flow-control water flow supercharging device |
| CN212509767U (en) * | 2020-06-08 | 2021-02-09 | 路达(厦门)工业有限公司 | Electromagnetic valve for preventing water hammer |
| CN212564695U (en) * | 2020-06-28 | 2021-02-19 | 玉环新同心圆阀门有限公司 | Waterproof hammer buffering angle valve |
| CN111853249A (en) * | 2020-07-31 | 2020-10-30 | 安徽宝龙电器有限公司 | Mining explosion-proof solenoid valve |
| CN112161107A (en) * | 2020-09-19 | 2021-01-01 | 陈翠华 | Water hammer effect damping type push-pull water faucet |
| CN112324978A (en) * | 2020-11-27 | 2021-02-05 | 远大阀门集团有限公司 | Composite exhaust valve with buffering waterproof hammer structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113653821A (en) | 2021-11-16 |
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Effective date of registration: 20230802 Address after: No. 5-3-B, No. 45 East Jiudao, Tianjin Pilot Free Trade Zone (Airport Economic Zone), Dongli District, Tianjin, 300000 Applicant after: Pafino intelligent manufacturing (Tianjin) Co.,Ltd. Address before: 102200 Room 201, building 3, East Annex building, Dongchen community, Lijun Road, Shunyi District, Beijing Applicant before: Zhou Shaoyun |
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