JPS63187789U - - Google Patents
Info
- Publication number
- JPS63187789U JPS63187789U JP7892087U JP7892087U JPS63187789U JP S63187789 U JPS63187789 U JP S63187789U JP 7892087 U JP7892087 U JP 7892087U JP 7892087 U JP7892087 U JP 7892087U JP S63187789 U JPS63187789 U JP S63187789U
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- valve body
- seal ring
- valve
- pressure contact
- 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
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Fluid-Driven Valves (AREA)
Description
第１図はこの考案の実施例を示す縦断面図、第
２図はこの考案の実施による遮断弁のシール動作
を示す説明図で、Ａ図は弁が開状態を、Ｂ図は内
側シール筒が弁座に当接した状態を、Ｃ図は弁が
閉状態を示す。
１……上部弁本体、２……下部弁本体、３……
内管、４……外管、５……詰環、６……内側シー
ル筒、７……外側シール筒、８，９，１０……空
気室、１１，１２，１３……ポート、１５……弁
体。
Fig. 1 is a longitudinal sectional view showing an embodiment of this invention, and Fig. 2 is an explanatory view showing the sealing operation of a shutoff valve according to the implementation of this invention. Fig. A shows the valve in the open state, and Fig. B shows the inner seal cylinder. Figure C shows the state in which the valve is in contact with the valve seat, and Figure C shows the valve in the closed state. 1... Upper valve body, 2... Lower valve body, 3...
Inner pipe, 4...Outer pipe, 5...Filled ring, 6...Inner seal tube, 7...Outer seal tube, 8, 9, 10...Air chamber, 11, 12, 13...Port, 15... ...valve body.
Claims (1)
管との間に形成される円筒状空〓を下向きに開放
し、長さの長い内側シール筒と長さが短く、かつ
下端に環状弾性体を装着した外側シール筒を組合
せて前記空〓に気密に、かつ摺動自在に挿嵌し、
圧力空気により進退し、弁本体の下部内に設けた
弁体の弁座に内側シールリングが圧接した後外側
シールリングが遅れて圧接するように設けた二重
シール機構を有する遮断弁。 The upper part of the valve body has a double pipe structure, and the cylindrical air formed between the inner pipe and the outer pipe is opened downward, and a long inner seal pipe and a short one at the bottom end are connected. An outer seal cylinder equipped with an annular elastic body is combined and fitted into the cavity airtightly and slidably,
A shutoff valve having a double seal mechanism in which the inner seal ring is moved forward and backward by pressurized air, and after the inner seal ring comes into pressure contact with the valve seat of the valve body provided in the lower part of the valve body, the outer seal ring comes into pressure contact later.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7892087U JPH0424222Y2 (en) | 1987-05-26 | 1987-05-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7892087U JPH0424222Y2 (en) | 1987-05-26 | 1987-05-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63187789U true JPS63187789U (en) | 1988-12-01 |
| JPH0424222Y2 JPH0424222Y2 (en) | 1992-06-08 |
Family
ID=30928306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7892087U Expired JPH0424222Y2 (en) | 1987-05-26 | 1987-05-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0424222Y2 (en) |
-
1987
- 1987-05-26 JP JP7892087U patent/JPH0424222Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0424222Y2 (en) | 1992-06-08 |