JPH02109082U - - Google Patents
Info
- Publication number
- JPH02109082U JPH02109082U JP1856189U JP1856189U JPH02109082U JP H02109082 U JPH02109082 U JP H02109082U JP 1856189 U JP1856189 U JP 1856189U JP 1856189 U JP1856189 U JP 1856189U JP H02109082 U JPH02109082 U JP H02109082U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- check valve
- port
- spring
- biased
- 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.)
- Granted
Links
- 230000002265 prevention Effects 0.000 claims 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
Landscapes
- Check Valves (AREA)
- Details Of Valves (AREA)
Description
第１図は本考案の逆流防止弁の一実施例を示し
た縦断面図、第２図および第３図はその作動状態
を示した縦断面図、第４図は本考案の逆流防止弁
の他の実施例を示した縦断面図、第５図は従来の
逆流防止弁の縦断面図、第６図および第７図は第
５図の作動状態を示した縦断面図である。
１……弁ケース本体、２……弁口、３……流入
口、８……逆止弁体、１３……スプリング、１７
……流出口、１９……狭窄部。
Fig. 1 is a vertical cross-sectional view showing an embodiment of the check valve of the present invention, Figs. 2 and 3 are longitudinal cross-sectional views showing its operating state, and Fig. 4 is a cross-sectional view of the check valve of the present invention. FIG. 5 is a vertical cross-sectional view of a conventional check valve, and FIGS. 6 and 7 are vertical cross-sectional views showing the operating state of FIG. 5. 1...Valve case body, 2...Valve port, 3...Inflow port, 8...Check valve body, 13...Spring, 17
...Outflow port, 19...Stricture part.
Claims (1)
弁口が閉じる方向に付勢してなる逆流防止弁にお
いて、該逆止弁体の開移動により流路が狭窄する
狭窄部を該逆止弁体の背部に設けたことを特徴と
する逆流防止弁。 In a check valve in which a check valve body facing a valve port is biased by a spring in a direction in which the valve port closes, the check valve A backflow prevention valve characterized by being installed on the back of the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989018561U JPH0712773Y2 (en) | 1989-02-20 | 1989-02-20 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989018561U JPH0712773Y2 (en) | 1989-02-20 | 1989-02-20 | Check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02109082U true JPH02109082U (en) | 1990-08-30 |
| JPH0712773Y2 JPH0712773Y2 (en) | 1995-03-29 |
Family
ID=31233319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989018561U Expired - Lifetime JPH0712773Y2 (en) | 1989-02-20 | 1989-02-20 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0712773Y2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001182852A (en) * | 1999-12-27 | 2001-07-06 | Nippon Pillar Packing Co Ltd | Check valve |
| JP2011089643A (en) * | 2010-12-07 | 2011-05-06 | Chuo Motor Wheel Co Ltd | Joint with check valve |
| JP2013057355A (en) * | 2011-09-08 | 2013-03-28 | Fuji Koki Corp | Check valve |
| JP2016223624A (en) * | 2015-05-28 | 2016-12-28 | ナブテスコ株式会社 | Valve device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54158332U (en) * | 1978-04-25 | 1979-11-05 |
-
1989
- 1989-02-20 JP JP1989018561U patent/JPH0712773Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54158332U (en) * | 1978-04-25 | 1979-11-05 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001182852A (en) * | 1999-12-27 | 2001-07-06 | Nippon Pillar Packing Co Ltd | Check valve |
| JP2011089643A (en) * | 2010-12-07 | 2011-05-06 | Chuo Motor Wheel Co Ltd | Joint with check valve |
| JP2013057355A (en) * | 2011-09-08 | 2013-03-28 | Fuji Koki Corp | Check valve |
| JP2016223624A (en) * | 2015-05-28 | 2016-12-28 | ナブテスコ株式会社 | Valve device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0712773Y2 (en) | 1995-03-29 |