CN2821326Y - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN2821326Y CN2821326Y CN 200520014828 CN200520014828U CN2821326Y CN 2821326 Y CN2821326 Y CN 2821326Y CN 200520014828 CN200520014828 CN 200520014828 CN 200520014828 U CN200520014828 U CN 200520014828U CN 2821326 Y CN2821326 Y CN 2821326Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- spring
- seat
- valve
- film
- 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 discloses a check valve which comprises a valve body (1), a valve core, a spring (3) and a spring seat (4), wherein a valve seat (7) is arranged in the valve body (1), a water inlet of the valve body (1) is provided with internal threads (5), and a water outlet of the valve body (1) is provided with external threads (6); an outlet of the valve seat (7) is provided with a circular plane; the valve core is a film (2) matched with the circular plane; the spring seat is a cuboid fixing seat fixed on the water outlet of the valve body (1); the spring is arranged on the spring seat (4) and pushes the film (2); the water inlet of the valve body (1) is provided with a filter screen (9). The utility model has the advantages of reasonable structure, reliable operation, good sealing performance, convenient installation and operation, good filter effect, small size, low cost, etc.
Description
Technical field
The utility model relates to a kind of safety check, the safety check that uses on particularly a kind of solar water heater.
Background technique
At present, the safety check that uses on the solar water heater is generally opening type, and valve block is hinged on valve outlet, reaches the purpose of unidirectional water outlet by the closure or openness of valve block; Mainly exist following defective: the one, be difficult to complete contact seal during owing to valve block and valve body closure, leak so in use can produce; The 2nd, safety check does not have filtrating equipment, and sand and foreign material in the water system enter in the solar water heater, cause solar energy heat collection pipe incrustation; The 3rd, manufacture difficulty is big, cost is high.
Summary of the invention
For overcoming the above-mentioned disadvantage that existing safety check exists, problem to be solved in the utility model provides the safety check of a kind of simple in structure, reliable operation, good seal performance, easy to install, good filtration effect.The technological scheme that its technical problem that solves the utility model adopts comprises valve body, spool, spring and spring seat, be provided with valve seat in the valve body, its water intake is provided with internal thread, water outlet is provided with outside thread, the outlet of described valve seat is provided with circular flat, and spool is a film, and film and circular flat are complementary, spring seat is the cuboid fixed base and is fixed on the water outlet of valve body that spring is arranged on the spring seat and withstands on the film.
In order to prevent solar energy heat collection pipe incrustation, the water intake of described valve body is provided with filter screen.
After adopting said structure, because spool adopts film, film and circular flat are complementary, so reliable operation, good seal performance; Water intake owing to valve body is provided with filter screen again, the good filtration effect of therefore intaking; Have rational in infrastructure, reliable operation, good seal performance, easy to install, good filtration effect, little, the low cost and other advantages of volume.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The cross-sectional view of the A-A of Fig. 2 Fig. 1.
Embodiment
Illustrated in figures 1 and 2, specific embodiments for a kind of safety check of the utility model, it comprises valve body 1, spool, spring 3 and spring seat 4, be provided with valve seat 7 in the valve body 1, valve body 1 water intake is provided with internal thread 5, water outlet is provided with outside thread 6, the outlet of described valve seat 7 is provided with circular flat, spool is a film 2, film 2 is complementary with circular flat, spring seat 4 is the cuboid fixed base and is fixed on by screw 8 on the water outlet of valve body 1 that spring 3 is arranged on the spring eye of spring seat 4, and the other end of spring 3 withstands on the film 2.The water intake of described valve body 1 is provided with filter screen 9.
Claims (2)
1, a kind of safety check, comprise valve body (1), spool, spring (3) and spring seat (4), be provided with valve seat (7) in the valve body (1), its water intake is provided with internal thread (5), water outlet is provided with outside thread (6), it is characterized in that: the outlet of described valve seat (7) is provided with circular flat, spool is film (2), film (2) is complementary with circular flat, spring seat (4) is the cuboid fixed base and is fixed on the water outlet of valve body (1) that spring (3) is arranged on spring seat (4) and goes up and withstand on the film (2).
2, safety check according to claim 1 is characterized in that: the water intake of described valve body (1) is provided with filter screen (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520014828 CN2821326Y (en) | 2005-09-07 | 2005-09-07 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520014828 CN2821326Y (en) | 2005-09-07 | 2005-09-07 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2821326Y true CN2821326Y (en) | 2006-09-27 |
Family
ID=37017881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520014828 Expired - Fee Related CN2821326Y (en) | 2005-09-07 | 2005-09-07 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2821326Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782709A (en) * | 2015-01-13 | 2016-07-20 | 现代自动车株式会社 | Receptacle for charging hydrogen |
-
2005
- 2005-09-07 CN CN 200520014828 patent/CN2821326Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782709A (en) * | 2015-01-13 | 2016-07-20 | 现代自动车株式会社 | Receptacle for charging hydrogen |
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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 |