CN2224319Y - Non-return valve - Google Patents
Non-return 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
- diaphragm valve
- 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
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- Check Valves (AREA)
Abstract
The utility model relates to a non-return valve which solves the problem that the volume can not be reduced. The utility model comprises a left valve body, a right valve body, a threaded sleeve, a diaphragm valve seat and a diaphragm valve, wherein the threaded sleeve is in screw connection with the left valve body, and the left valve body, the right valve body and the threaded sleeve are combined into a whole. The utility model is characterized in that the left valve body is provided with a chamber which is capable of containing the diaphragm valve seat, the diaphragm valve seat is composed of shafts and forms a liquid stream hole and a circular arc surface, besides, the diaphragm valve seat is provided with the diaphragm valve which is matched with the circular arc surface shape of the diaphragm valve seat. The diaphragm valve is positioned in front of the liquid stream hole which opens or closes the diaphragm valve seat by utilizing liquid flow pressure. The utility model is used for stopping liquid in pipelines returning.
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 | Non-return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95206971 CN2224319Y (en) | 1995-03-30 | 1995-03-30 | Non-return 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 | Non-return valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2224319Y (en) |
Cited By (5)
| 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 |
-
1995
- 1995-03-30 CN CN 95206971 patent/CN2224319Y/en not_active Expired - Fee Related
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 |
| 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 |
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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 |