CN204062023U - Inner thread check valve - Google Patents
Inner thread check valve Download PDFInfo
- Publication number
- CN204062023U CN204062023U CN201420380263.5U CN201420380263U CN204062023U CN 204062023 U CN204062023 U CN 204062023U CN 201420380263 U CN201420380263 U CN 201420380263U CN 204062023 U CN204062023 U CN 204062023U
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- CN
- China
- Prior art keywords
- valve
- valve body
- ring
- seal ring
- import
- 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 modulating valve technical field, especially a kind of safety check being applicable to water, oil and some corrosive liquids.This inner thread check valve, there is valve body and valve gap that stainless steel makes, be arranged on the valve plate in valve body, and the import arranged in the same way and outlet, the position that described valve body and valve gap contact is provided with the first seal ring, is provided with back-up ring in valve body near inlet end, and valve plate is movably connected on the back-up ring of close valve gap side in valve body by bearing pin, described back-up ring is embedded with the second seal ring, and import and outlet inside wall are equipped with the internal thread being connected other pipelines.The utility model structure is simple, and reasonable in design, be provided with seal ring at valve body and valve gap connecting part, valve plate is movably connected on valve body, has stable and reliable for performance, wear-resistant, long service life, operates steadily, the advantage such as friction, noise free.
Description
Technical field
The utility model relates to modulating valve technical field, especially a kind of safety check being applicable to water, oil and some corrosive liquids.
Background technique
Safety check refers to and relies on medium itself to flow or spring pressure and can open and close flap automatically, is used for the valve preventing medium from flowing backwards, also known as one-way valve.Safety check belongs to a kind of automatic valve, on the pipeline of its Main Function medium one-way flow, only allows medium to flow to a direction, to try to avert accidents.Traditional check valve structure is complicated, and assemble loaded down with trivial details, working life is short, and run not steady, noise is large, poor sealing performance, easily causes leakage to cause security incident occurs.
Model utility content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provides a kind of structure simple, the inner thread check valve of good seal performance.
The utility model solves the technological scheme that its technical problem adopts: a kind of inner thread check valve, there is valve body and valve gap that stainless steel makes, be arranged on the valve plate in valve body, and the import arranged in the same way and outlet, the position that described valve body and valve gap contact is provided with the first seal ring, back-up ring is provided with near inlet end in valve body, valve plate is movably connected on the back-up ring of close valve gap side in valve body by bearing pin, described back-up ring is embedded with the second seal ring, and import and outlet inside wall are equipped with the internal thread being connected other pipelines.First seal ring and the second seal ring material are teflon.
Further, described valve gap is fixedly connected on valve body by nut or buckle.
Further, pad is provided with between described valve gap and the first seal ring.
The beneficial effects of the utility model are: the utility model structure is simple, reasonable in design, be provided with seal ring at valve body and valve gap connecting part, valve plate is movably connected on valve body, has stable and reliable for performance, wear-resistant, long service life, operates steadily, the advantage such as friction, noise free.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Wherein: 1. valve body, 2. valve gap, 3. import, 4. export, 5. valve plate, 6. bearing pin, 7. the first seal ring, 8. the second seal ring, 9. internal thread.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, and therefore it only shows the formation relevant with the utility model.
Inner thread check valve as shown in Figure 1, there is valve body 1 and valve gap 2 that stainless steel makes, be arranged on the valve plate 5 in valve body 1, and the import 3 arranged in the same way and outlet 4, the position that valve body 1 and valve gap 2 contact is provided with the first seal ring 7, is provided with back-up ring in valve body 1 near import 3 one end, and valve plate 5 is movably connected on the back-up ring of close valve gap 2 side in valve body 1 by bearing pin 6, described back-up ring is embedded with the second seal ring 8, and import 3 is equipped with outlet 4 inwalls the internal thread 9 being connected other pipelines; Valve gap 2 is fixedly connected on valve body 1 by nut.
Pad is provided with between valve gap 2 and the first seal ring 7.
During work, medium enters valve body 1 from import 3, and promote valve plate 5 to the motion of valve gap 2 place, medium flows out outlet 4 from valve plate 5 gaps underneath; When medium stops flowing, under gravity, valve plate 5 is parked in back-up ring place, and back-up ring place is provided with the second seal ring 8, can prevent medium from pouring in down a chimney from outlet 4, thus realize one-way flow.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (3)
1. an inner thread check valve, there is valve body (1) and valve gap (2) that stainless steel makes, be arranged on the valve plate (5) in valve body (1), and the import arranged in the same way (3) and outlet (4), it is characterized in that: the position that described valve body (1) and valve gap (2) contact is provided with the first seal ring (7), back-up ring is provided with near import (3) one end in valve body (1), valve plate (5) is movably connected on the back-up ring of close valve gap (2) side in valve body (1) by bearing pin (6), described back-up ring is embedded with the second seal ring (8), import (3) is equipped with outlet (4) inwall the internal thread (9) being connected other pipelines.
2. inner thread check valve according to claim 1, is characterized in that: described valve gap (2) is fixedly connected on valve body (1) by nut or buckle.
3. inner thread check valve according to claim 1, is characterized in that: be provided with pad between described valve gap (2) and the first seal ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420380263.5U CN204062023U (en) | 2014-07-10 | 2014-07-10 | Inner thread check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420380263.5U CN204062023U (en) | 2014-07-10 | 2014-07-10 | Inner thread check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204062023U true CN204062023U (en) | 2014-12-31 |
Family
ID=52203540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420380263.5U Expired - Fee Related CN204062023U (en) | 2014-07-10 | 2014-07-10 | Inner thread check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204062023U (en) |
-
2014
- 2014-07-10 CN CN201420380263.5U patent/CN204062023U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311401 Fuyang Industrial Zone, Hangzhou, Dongzhou City Road No. six, No. 8 Patentee after: Hangzhou Fuyang Mingda instrument valve industry Co Ltd Address before: 311401 Fuyang Industrial Zone, Hangzhou, Dongzhou City Road No. six, No. 8 Patentee before: FUYANG MINGDA INSTRUMENT VALVES CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20170710 |