JPH0385780U - - Google Patents
Info
- Publication number
- JPH0385780U JPH0385780U JP14423689U JP14423689U JPH0385780U JP H0385780 U JPH0385780 U JP H0385780U JP 14423689 U JP14423689 U JP 14423689U JP 14423689 U JP14423689 U JP 14423689U JP H0385780 U JPH0385780 U JP H0385780U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- cylinder chamber
- piston
- cylinder
- bellows
- 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
- 239000012530 fluid Substances 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Lift Valve (AREA)
- Details Of Valves (AREA)
Description
第１図及び第２図は本考案の一実施例を示し、
第１図は一部を切断して示す正面図、第２図は第
１図の−線断面図である。
１……ハウジング、１ａ……ハウジング内周面
、２……流通路、３……弁体、５……弁軸、６…
…平歯車、１１……シリンダ室、１１Ａ……第１
シリンダ室、１１Ｂ……第２シリンダ室、１２…
…ピストン、１６……ラツクギヤ（駆動体）、１
７……ベローズ、Ｇ……隙間、ｓ……支持部。
1 and 2 show an embodiment of the present invention,
FIG. 1 is a partially cutaway front view, and FIG. 2 is a sectional view taken along the line -- in FIG. 1. DESCRIPTION OF SYMBOLS 1... Housing, 1a... Inner peripheral surface of housing, 2... Flow path, 3... Valve body, 5... Valve shaft, 6...
...Spur gear, 11...Cylinder chamber, 11A...1st
Cylinder chamber, 11B...Second cylinder chamber, 12...
...Piston, 16...Rack gear (driver), 1
7...Bellows, G...Gap, s...Support part.
Claims (1)
た弁軸と、この弁軸を支持する支持部と、前記弁
軸を回動させる駆動体とを有するバタフライ開閉
弁であつて、 往復動するピストンがシリンダ室内に設けてあ
り、該ピストンに前記駆動体が連結され、この駆
動体の直線動を弁軸の回転動に変換する変換機構
を有し、 前記シリンダ室が、ピストン作動流体を給排す
る第１シリンダ室と、この第１シリンダ室に対し
てピストンの反対側に形成される第２シリンダ室
とから構成され、 前記駆動体におけるピストン側端部に一端が連
結してあり、他端がシリンダ室を構成するシリン
ダ本体に連結してあるベローズが前記第２シリン
ダ室内に装着してあり、 前記弁軸と支持部との間および駆動体とシリン
ダ本体との間を通してバルブ外に漏洩しようとす
るバルブ内流体を封止することを特徴とするバタ
フライ開閉弁。[Claims for Utility Model Registration] A valve body that opens and closes a flow path, a valve stem connected to the valve body, a support part that supports the valve stem, and a drive body that rotates the valve stem. A butterfly opening/closing valve, which has a reciprocating piston provided in a cylinder chamber, the driving body connected to the piston, and a conversion mechanism that converts the linear motion of the driving body into rotational motion of the valve shaft, The cylinder chamber includes a first cylinder chamber that supplies and discharges piston working fluid, and a second cylinder chamber that is formed on the opposite side of the piston with respect to the first cylinder chamber, and the piston side end of the drive body A bellows is installed in the second cylinder chamber, and the bellows has one end connected to the cylinder body and the other end connected to the cylinder body constituting the cylinder chamber, and the bellows is connected between the valve shaft and the support section and between the drive body and the second cylinder chamber. A butterfly on-off valve is characterized in that it seals off fluid within the valve that attempts to leak out of the valve through a gap between the valve and the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14423689U JPH0385780U (en) | 1989-12-14 | 1989-12-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14423689U JPH0385780U (en) | 1989-12-14 | 1989-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0385780U true JPH0385780U (en) | 1991-08-29 |
Family
ID=31690960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14423689U Pending JPH0385780U (en) | 1989-12-14 | 1989-12-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0385780U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60211177A (en) * | 1984-03-28 | 1985-10-23 | ゾクモクス・コーポレイシヨン | Operating mechanism of rotary valve |
-
1989
- 1989-12-14 JP JP14423689U patent/JPH0385780U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60211177A (en) * | 1984-03-28 | 1985-10-23 | ゾクモクス・コーポレイシヨン | Operating mechanism of rotary valve |
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