CN2224319Y - check valve - Google Patents
check valve Download PDFInfo
- Publication number
- CN2224319Y CN2224319Y CN 95206971 CN95206971U CN2224319Y CN 2224319 Y CN2224319 Y CN 2224319Y CN 95206971 CN95206971 CN 95206971 CN 95206971 U CN95206971 U CN 95206971U CN 2224319 Y CN2224319 Y CN 2224319Y
- Authority
- CN
- China
- Prior art keywords
- valve
- diaphragm valve
- diaphragm
- valve seat
- barrel
- 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.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 239000012530 fluid Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Check Valves (AREA)
Abstract
本实用新型涉及逆止阀。解决缩小体积问题。包括有左阀体、右阀体、螺套、膜片阀座及膜片阀；螺套与左阀体螺合，左阀体、右阀体螺套结合成一体；其特征是：于左阀体设有一可容设膜片阀座的腔室；该膜片阀座由骨干构成并形成液流孔及一圆弧面；另设有配合该膜片阀座圆弧面形状的膜片阀；该膜片阀位于利用液体流动压力启、闭膜片阀座的液流孔的前方。用于管道内液体止逆。
The utility model relates to a check valve. It solves the problem of reducing the volume. It comprises a left valve body, a right valve body, a screw sleeve, a diaphragm valve seat and a diaphragm valve; the screw sleeve is screwed with the left valve body, and the left valve body and the right valve body screw sleeve are combined into one body; the utility model is characterized in that: a chamber for accommodating the diaphragm valve seat is provided in the left valve body; the diaphragm valve seat is composed of a backbone and forms a liquid flow hole and an arc surface; a diaphragm valve matching the arc surface shape of the diaphragm valve seat is also provided; the diaphragm valve is located in front of the liquid flow hole of the diaphragm valve seat which is opened and closed by the liquid flow pressure. It is used for liquid check in pipelines.
Description
The utility model relates to check valve, refers to the check valve that a kind of volume is little, performance is good especially.
Existing check valve mostly volume is bigger, and as being located in the valve pocket with spherical spool, mat liquid stream is to open and close; As controlling with spring, its shortcoming all is to possess bigger chamber, Gu this volume is bigger, makes the position of installation be subjected to certain limitation.
The purpose of this utility model provides the check valve that a kind of performance is good and volume is less.
The purpose of this utility model is achieved in that check valve, includes left valve barrel, right valve barrel, swivel nut, diaphragm valve seat and diaphragm valve; Swivel nut and left valve barrel screw togather, and left valve barrel, right valve barrel swivel nut are combined into one; It is characterized in that: be provided with a chamber that can be installed with diaphragm valve seat in left valve barrel; This diaphragm valve seat is made of the backbone and forms a liquid flow hole and an arc surface; Other is provided with the diaphragm valve that cooperates this diaphragm valve seat arc surface shape; This diaphragm valve is positioned at and utilizes flow of fluid pressure to open and close the place ahead of the liquid flow hole of diaphragm valve seat.
Above-mentioned design, the left and right valve body of mat, swivel nut, diaphragm valve seat and diaphragm valve is together nestable, diaphragm valve is located in the diaphragm valve seat, open and close diaphragm valve by liquid stream, thereby reach little and the purpose that effect is good of volume.
Remake carefully below by drawings and Examples and to state.
Fig. 1 is the utility model perspective exploded view;
Fig. 2 is the utility model schematic perspective view;
Fig. 3 is the static and non-return shape cross-sectional schematic of the utility model;
Fig. 4 is the forward mobile cross-sectional schematic of the utility model;
As shown in Figure 1, 2: left valve barrel 1 has outside thread 6, can screw togather with the internal thread 7 of swivel nut 3; Left and right valve body 1,2 leans mutually for there being a ring with subtend to enclose face 8,9, forms a chamber 10 and (also chamber 10 can be located in the right valve barrel 2 in left valve barrel 1.) by circle 3,4 as seen: left valve barrel 1 have bigger ring enclose inner ring surface 12 that face 11 can be swivel nut 3 against, after swivel nut 3 and left valve barrel 1 screw togather, left and right valve body can be combined closely.For reaching leakage-proof effect, enclose face 8 in ring and be provided with a leak-stopping annular groove 13 and be provided with a seal ring 14.Left and right valve body 1,2 has common common duct 15, so as liquid into and out of.Chamber 10 has been installed with diaphragm valve seat 4, and in conjunction with in being fixed in simultaneously, this diaphragm valve seat 4 constitutes a plurality of liquid flow holes 16 by a plurality of key 17, and is provided with an elliptical aperture 18 in central authorities in left and right valve body 1,2, establish an arc surface 19 again, this arc surface 19 is positioned at the outlet side of liquid pores 16.The shape of fit circular arc face 19 made and had by diaphragm valve 5 by flexible material, one side has a plurality of wavy concave convex textures 20, side has a falcon post 21 in addition, can pass the elliptical aperture 18 of above-mentioned diaphragm valve seat 4, use diaphragm valve 5 and diaphragm valve seat 4 are combined closely, and diaphragm valve 5 is positioned, unlikely random rotation.When liquid when forward flowing through check valve, can utilize the lines 20 of diaphragm valve 5 to make diaphragm valve 5 liquid body pressure and open liquid flow hole 16, make the flow of liquid mistake; When the liquid reverse flow, fluid pressure makes diaphragm valve 5 be close to the arc surface 19 of diaphragm valve seat 4, makes liquid flow hole 15 closed and reach the effect of check.
Claims (3)
1, check valve includes left valve barrel, right valve barrel, swivel nut, diaphragm valve seat and diaphragm valve; Swivel nut and left valve barrel screw togather, and left valve barrel, right valve barrel swivel nut are combined into one; It is characterized in that: be provided with a chamber that can be installed with diaphragm valve seat in left valve barrel; This diaphragm valve seat is made of the backbone and forms a liquid flow hole and an arc surface; Other is provided with a diaphragm valve; This diaphragm valve is positioned at and utilizes flow of fluid pressure to open and close the place ahead of the liquid flow hole of diaphragm valve seat.
2, check valve as claimed in claim 1 is characterized in that: diaphragm valve is provided with the shape of matching film plate valve seat.
3, check valve as claimed in claim 1 is characterized in that: diaphragm valve one side is provided with wavy concave convex texture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95206971 CN2224319Y (en) | 1995-03-30 | 1995-03-30 | check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95206971 CN2224319Y (en) | 1995-03-30 | 1995-03-30 | check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2224319Y true CN2224319Y (en) | 1996-04-10 |
Family
ID=33858740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95206971 Expired - Fee Related CN2224319Y (en) | 1995-03-30 | 1995-03-30 | check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2224319Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012006954A1 (en) * | 2010-07-14 | 2012-01-19 | 厦门松霖科技有限公司 | Flow adjustment check device |
| CN103016877A (en) * | 2011-09-23 | 2013-04-03 | 吴上能 | Check device of quick coupling |
| CN104667603A (en) * | 2013-11-28 | 2015-06-03 | 浙江三花制冷集团有限公司 | Bidirectional filter and one-way valve component thereof |
| CN105749726A (en) * | 2016-05-18 | 2016-07-13 | 浙江九达环保设备有限公司 | Protection device and protection method of desulfurization slurry circulation system filter screen |
| CN113474522A (en) * | 2019-02-25 | 2021-10-01 | 轻易清洁解决方案有限责任公司 | Odor trap with flexible baffle |
| CN114110218A (en) * | 2021-12-29 | 2022-03-01 | 张家港富瑞阀门有限公司 | A check valve and a novel fuel cell stack using the check valve |
-
1995
- 1995-03-30 CN CN 95206971 patent/CN2224319Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012006954A1 (en) * | 2010-07-14 | 2012-01-19 | 厦门松霖科技有限公司 | Flow adjustment check device |
| CN103016877A (en) * | 2011-09-23 | 2013-04-03 | 吴上能 | Check device of quick coupling |
| CN104667603A (en) * | 2013-11-28 | 2015-06-03 | 浙江三花制冷集团有限公司 | Bidirectional filter and one-way valve component thereof |
| CN105749726A (en) * | 2016-05-18 | 2016-07-13 | 浙江九达环保设备有限公司 | Protection device and protection method of desulfurization slurry circulation system filter screen |
| CN113474522A (en) * | 2019-02-25 | 2021-10-01 | 轻易清洁解决方案有限责任公司 | Odor trap with flexible baffle |
| CN113474522B (en) * | 2019-02-25 | 2024-02-02 | 轻易清洁解决方案有限责任公司 | Odor catcher with flexible baffle |
| CN114110218A (en) * | 2021-12-29 | 2022-03-01 | 张家港富瑞阀门有限公司 | A check valve and a novel fuel cell stack using the check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |