JPH01122500U - - Google Patents
Info
- Publication number
- JPH01122500U JPH01122500U JP1470088U JP1470088U JPH01122500U JP H01122500 U JPH01122500 U JP H01122500U JP 1470088 U JP1470088 U JP 1470088U JP 1470088 U JP1470088 U JP 1470088U JP H01122500 U JPH01122500 U JP H01122500U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- check valve
- valve body
- interposed
- provided above
- 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.)
- Pending
Links
- 238000005086 pumping Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Check Valves (AREA)
Description
第１図は、ガソリンスタンド等における地下に
埋設したタンク、計量機、汲出管及び逆止弁の接
続を示す模式図。第２図は、逆止弁の縦断面図。
Ｔ：タンク、Ｖ：逆止弁、ｄ１，ｄ２：間隔、
：長さ、２：汲出管、１０：弁座、１１：弁体
、１７：同上面、２０：弁操作杆、２４：コイル
スプリング。
FIG. 1 is a schematic diagram showing connections between a tank buried underground, a weighing machine, a pumping pipe, and a check valve in a gas station or the like. FIG. 2 is a longitudinal sectional view of the check valve. T: tank, V: check valve, d 1 , d 2 : interval,
: length, 2: pumping pipe, 10: valve seat, 11: valve body, 17: same upper surface, 20: valve operating rod, 24: coil spring.
Claims (1)
設した逆止弁Ｖにおいて、同逆止弁Ｖを、上方向
に開口した弁座１０と、同弁座１０の上方に設け
た弁体１１と、同弁体１１の上方に設けた昇降自
在の弁操作杆２０と、同操作杆２０の下端と弁体
１１の上面１７との間に、同杆２０の最上方位置
と最下方位置における上記下端と上面１７との間
隔ｄ１，ｄ２の中間の長さのコイルスプリング
２４を介装してなる地下タンク用逆止弁構造。 In a check valve V interposed in the middle of a pumping pipe 2 of a tank T buried underground, the check valve V has a valve seat 10 that opens upward, and a valve body provided above the valve seat 10. 11, a vertically movable valve operating rod 20 provided above the valve body 11, and an uppermost position and a lowermost position of the rod 20 between the lower end of the operating rod 20 and the upper surface 17 of the valve body 11. A check valve structure for an underground tank in which a coil spring 24 having a length intermediate between the distances d 1 and d 2 between the lower end and the upper surface 17 is interposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1470088U JPH01122500U (en) | 1988-02-05 | 1988-02-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1470088U JPH01122500U (en) | 1988-02-05 | 1988-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01122500U true JPH01122500U (en) | 1989-08-21 |
Family
ID=31226136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1470088U Pending JPH01122500U (en) | 1988-02-05 | 1988-02-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01122500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008120414A (en) * | 2006-11-10 | 2008-05-29 | Tokiko Techno Kk | Pipe joint for underground tank, and pipe attaching structure |
-
1988
- 1988-02-05 JP JP1470088U patent/JPH01122500U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008120414A (en) * | 2006-11-10 | 2008-05-29 | Tokiko Techno Kk | Pipe joint for underground tank, and pipe attaching structure |