JPH0194672U - - Google Patents
Info
- Publication number
- JPH0194672U JPH0194672U JP19071887U JP19071887U JPH0194672U JP H0194672 U JPH0194672 U JP H0194672U JP 19071887 U JP19071887 U JP 19071887U JP 19071887 U JP19071887 U JP 19071887U JP H0194672 U JPH0194672 U JP H0194672U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve stem
- stem
- butterfly
- air vent
- 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 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Lift Valve (AREA)
Description
第１図は本考案の一実施例を示すバタフライ弁
の下半部を示す縦断面図、第２図は第１図の―
線の横断面図、第３図は弁棒部の分解斜視図、
第４図は従来例を示す二分割弁棒を具えたバタフ
ライ弁の縦断面図、第５図ａないしｃは二分割弁
棒の組立過程を示す説明図、第６図は他の従来例
を示す要部断面図である。
１…本体、２…弁体、２ｂ…弁体孔部、３Ａ…
主弁棒、３Ｂ…副弁棒、３１…空気抜け溝、３２
…芯棒、３３…円筒体、３４…通路、３５…ボー
ル弁、３６…コイルばね、４…シートリング。
Fig. 1 is a vertical sectional view showing the lower half of the butterfly valve showing an embodiment of the present invention, and Fig. 2 is a vertical sectional view of the lower half of the butterfly valve showing an embodiment of the present invention.
A cross-sectional view of the line, Figure 3 is an exploded perspective view of the valve stem,
Fig. 4 is a vertical cross-sectional view of a butterfly valve equipped with a two-part valve stem showing a conventional example, Figs. FIG. 1...Main body, 2...Valve body, 2b...Valve body hole, 3A...
Main valve stem, 3B...Sub-valve stem, 31...Air vent groove, 32
... core rod, 33 ... cylindrical body, 34 ... passage, 35 ... ball valve, 36 ... coil spring, 4 ... seat ring.
Claims (1)
にシートリングを張設し、該本体内に、駆動側の
一端を外方に突出させた主弁棒と、反対位置に挿
入された副弁棒とに二分割された両弁棒によつて
回動自在に弁体を支持するようにしたバタフライ
弁において、弁体周辺部の２箇所の弁体孔部に挿
入される上記二分割された両弁棒の少くとも一方
の弁棒を、空気抜け溝を周面に有する芯棒と、該
芯棒に密嵌された円筒体とによつて構成し、上記
空気抜け溝にシール機構を設けたことを特徴とす
るバタフライ弁の二分割弁棒。 ２ 上記シール機構が、コイルばねに押圧された
ボール弁で構成されている実用新案登録請求の範
囲第１項記載のバタフライ弁の二分割弁棒。[Claims for Utility Model Registration] 1. A seat ring is stretched over the inner peripheral surface of a hollow cylindrical main body made of a rigid material, and a main valve rod with one end of the driving side protruding outward is provided within the main body. In a butterfly valve in which a valve body is rotatably supported by two valve stems that are divided into two parts and a sub-valve stem inserted in opposite positions, two valve body holes are provided around the valve body. At least one of the two divided valve stems inserted into the valve stem is composed of a core rod having an air vent groove on its circumferential surface and a cylindrical body tightly fitted to the core rod, A two-part valve stem for a butterfly valve, characterized in that a sealing mechanism is provided in the air vent groove. 2. The two-part valve stem of a butterfly valve according to claim 1, wherein the sealing mechanism is constituted by a ball valve pressed by a coil spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19071887U JPH0334521Y2 (en) | 1987-12-17 | 1987-12-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19071887U JPH0334521Y2 (en) | 1987-12-17 | 1987-12-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0194672U true JPH0194672U (en) | 1989-06-22 |
| JPH0334521Y2 JPH0334521Y2 (en) | 1991-07-22 |
Family
ID=31481665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19071887U Expired JPH0334521Y2 (en) | 1987-12-17 | 1987-12-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0334521Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013092250A (en) * | 2011-10-07 | 2013-05-16 | Denso Corp | Valve device |
-
1987
- 1987-12-17 JP JP19071887U patent/JPH0334521Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013092250A (en) * | 2011-10-07 | 2013-05-16 | Denso Corp | Valve device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0334521Y2 (en) | 1991-07-22 |