JPH03100677U - - Google Patents
Info
- Publication number
- JPH03100677U JPH03100677U JP990690U JP990690U JPH03100677U JP H03100677 U JPH03100677 U JP H03100677U JP 990690 U JP990690 U JP 990690U JP 990690 U JP990690 U JP 990690U JP H03100677 U JPH03100677 U JP H03100677U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- engages
- shaft
- presses
- 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
Landscapes
- Preventing Unauthorised Actuation Of Valves (AREA)
Description
第１図は本考案の係る二重シール弁の一実施例
を示す半縦断面図で、閉弁状態を示しており、第
２図は第１図の二重シール弁の要部拡大図で、開
弁状態を示しており、第３図は第１図の−線
断面図、第４図は従来の二重シール弁を示す断面
図である。
１１……ハウジング、１２……上部流路、１３
……下部流路、１４……連通路、１５ａ……上部
開口部、１５ｂ……下部開口部、１６……弁座、
１７……第１弁体、１８……第１弁軸、１８ａ…
…下部軸部、１８ｂ……中間軸部、１９……第２
弁体、２０……第２弁軸、３１……弁開閉駆動機
構、４０……弁軸ロツク機構、４１……シリンダ
ケース、４２……ピストン、４３……環状溝、４
４……支持枠、４５……ストツパ部材、４６……
無端状の弾性バンド、４７……筒状突出壁、４８
……テーパ面、４９……テーパ部、５０……係合
部、５２……コイルばね。
Fig. 1 is a half-longitudinal sectional view showing an embodiment of the double seal valve according to the present invention, showing the valve in the closed state, and Fig. 2 is an enlarged view of the main parts of the double seal valve shown in Fig. 1. , which shows the valve in an open state, FIG. 3 is a cross-sectional view taken along the line -- in FIG. 1, and FIG. 4 is a cross-sectional view showing a conventional double seal valve. 11...Housing, 12...Upper channel, 13
... Lower flow path, 14 ... Communication path, 15a ... Upper opening, 15b ... Lower opening, 16 ... Valve seat,
17...first valve body, 18...first valve shaft, 18a...
... lower shaft part, 18b ... middle shaft part, 19 ... second
Valve body, 20... Second valve stem, 31... Valve opening/closing drive mechanism, 40... Valve stem locking mechanism, 41... Cylinder case, 42... Piston, 43... Annular groove, 4
4... Support frame, 45... Stopper member, 46...
Endless elastic band, 47... Cylindrical protruding wall, 48
...Tapered surface, 49...Tapered portion, 50...Engaging portion, 52...Coil spring.
Claims (1)
該連通路に設けた弁座の上部側に上方より押接係
合する第１弁体を第１弁軸に、または前記弁座の
下部側に上方より押接係合する第２弁体を、第１
弁軸に摺動可能にして且つばねにより常時下向き
に付勢されるように嵌装される第２弁軸にそれぞ
れ設けると共に、第１弁軸を弁開閉駆動機構に連
動連結し、開弁時に第１弁軸に上動に伴い第２弁
体が第１弁体に追従移動する二重シール弁におい
て、第１弁軸に係合部を設けると共に、進退駆動
手段により第１弁軸に対し、これと直交方向に進
退移動可能であつて、閉弁時に進入移動して前記
係合部と係合し第１弁軸を閉弁位置に固定させる
ストツパ部材を設けてなることを特徴とする二重
シール弁。 A communication path is formed between the upper flow path and the lower flow path,
A first valve body that presses and engages with the upper side of the valve seat provided in the communication passage from above, and a second valve body that presses and engages with the first valve shaft from above, or a second valve body that presses and engages with the lower side of the valve seat from above. , 1st
The second valve shaft is fitted in such a way that it can slide on the valve shaft and is constantly urged downward by a spring, and the first valve shaft is interlocked and connected to the valve opening/closing drive mechanism. In a double seal valve in which the second valve body moves to follow the first valve body as the first valve stem moves upward, the first valve stem is provided with an engaging portion, and a forward/backward drive means is used to move the second valve body toward the first valve stem. , the stopper member is movable forward and backward in a direction orthogonal thereto, and is provided with a stopper member that moves toward and engages with the engaging portion when the valve is closed, thereby fixing the first valve shaft at the valve-closing position. Double seal valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990009906U JPH0536153Y2 (en) | 1990-02-02 | 1990-02-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990009906U JPH0536153Y2 (en) | 1990-02-02 | 1990-02-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03100677U true JPH03100677U (en) | 1991-10-21 |
| JPH0536153Y2 JPH0536153Y2 (en) | 1993-09-13 |
Family
ID=31513491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990009906U Expired - Lifetime JPH0536153Y2 (en) | 1990-02-02 | 1990-02-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0536153Y2 (en) |
-
1990
- 1990-02-02 JP JP1990009906U patent/JPH0536153Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0536153Y2 (en) | 1993-09-13 |
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