JPH0378179U - - Google Patents
Info
- Publication number
- JPH0378179U JPH0378179U JP13955189U JP13955189U JPH0378179U JP H0378179 U JPH0378179 U JP H0378179U JP 13955189 U JP13955189 U JP 13955189U JP 13955189 U JP13955189 U JP 13955189U JP H0378179 U JPH0378179 U JP H0378179U
- Authority
- JP
- Japan
- Prior art keywords
- seat ring
- butterfly valve
- shaft sealing
- sealing device
- engagement protrusion
- 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 description 7
- 230000003014 reinforcing effect Effects 0.000 claims 3
- 239000002184 metal Substances 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Lift Valve (AREA)
Description
第１図ａ，ｂ，ｃ乃至第４図は、本考案におけ
るバタフライ弁の軸封装置の実施例を示したもの
で、第１図ａはボデーの斜視図、第１図ｂは弾性
シートリングの斜視図、第１図ｃはジスクの斜視
図であり、第２図は、シーリングの一部切欠き平
面図、第３図は、ボデーの係止溝部とシートリン
グの係合突設部の係合状態を離間させて示した部
分縦断面図、第４図は、バタフライ弁の縦断面図
である。
１……ボデー、４……係止溝部、５……ステム
、７……シートリング、８……軸孔、９……ジス
ク、１０……係合突設部、１１……補強部材。
Figures 1a, b, c to 4 show an embodiment of the shaft sealing device for a butterfly valve according to the present invention. Figure 1a is a perspective view of the body, and Figure 1b is an elastic seat ring. FIG. 1c is a perspective view of the disk, FIG. 2 is a partially cutaway plan view of the sealing, and FIG. 3 is a view of the locking groove of the body and the engagement protrusion of the seat ring. FIG. 4 is a partial vertical cross-sectional view of the butterfly valve shown in an engaged state separated from each other. DESCRIPTION OF SYMBOLS 1... Body, 4... Locking groove part, 5... Stem, 7... Seat ring, 8... Shaft hole, 9... Disc, 10... Engagement protrusion part, 11... Reinforcement member.
Claims (1)
装着し、このシートリングの対向位置に軸孔を形
成し、この軸孔に挿通したステムでシートリング
内のジスクを回動操作して開閉するようにしたバ
タフライ弁において、上記した軸孔の外周面に係
合突設部を形成し、この係合突設部をボデーの内
周面に形成した係止溝部に係合すると共に、係合
突設部内に補強部材を埋設したことを特徴とする
バタフライ弁の軸封装置。 (2) 係合突設部を有するシートリングをゴムで
形成すると共に、係合突設部内の補強部材はゴム
製のシートリングにインサート成形により埋設し
た請求項１記載のバタフライ弁の軸封装置。 (3) 補強部材は、金属製のバツクアツプリング
である請求項１又は２記載のバタフライ弁の軸封
装置。[Scope of Claim for Utility Model Registration] (1) An elastic seat ring is installed inside a cylindrical body, a shaft hole is formed at a position opposite to this seat ring, and a stem inserted into this shaft hole is used to tighten the disk inside the seat ring. In the butterfly valve, which is opened and closed by rotational operation, an engagement protrusion is formed on the outer circumferential surface of the shaft hole, and the engagement protrusion is formed on the inner circumference of the body. 1. A shaft sealing device for a butterfly valve, characterized in that the shaft sealing device engages with the shaft sealing member and has a reinforcing member embedded within the engaging protrusion. (2) The shaft sealing device for a butterfly valve according to claim 1, wherein the seat ring having the engagement protrusion is made of rubber, and the reinforcing member within the engagement protrusion is embedded in the rubber seat ring by insert molding. . (3) The shaft sealing device for a butterfly valve according to claim 1 or 2, wherein the reinforcing member is a metal back-up spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989139551U JP2531879Y2 (en) | 1989-12-01 | 1989-12-01 | Shaft sealing device for butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989139551U JP2531879Y2 (en) | 1989-12-01 | 1989-12-01 | Shaft sealing device for butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0378179U true JPH0378179U (en) | 1991-08-07 |
| JP2531879Y2 JP2531879Y2 (en) | 1997-04-09 |
Family
ID=31686587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989139551U Expired - Lifetime JP2531879Y2 (en) | 1989-12-01 | 1989-12-01 | Shaft sealing device for butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2531879Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59174458U (en) * | 1983-05-10 | 1984-11-21 | 東洋バルヴ株式会社 | Butterfly valve shaft sealing device |
| JPS6359272U (en) * | 1986-10-08 | 1988-04-20 | ||
| JPS63186075A (en) * | 1987-01-27 | 1988-08-01 | Kubota Ltd | Valve box seat fixing structure |
-
1989
- 1989-12-01 JP JP1989139551U patent/JP2531879Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59174458U (en) * | 1983-05-10 | 1984-11-21 | 東洋バルヴ株式会社 | Butterfly valve shaft sealing device |
| JPS6359272U (en) * | 1986-10-08 | 1988-04-20 | ||
| JPS63186075A (en) * | 1987-01-27 | 1988-08-01 | Kubota Ltd | Valve box seat fixing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2531879Y2 (en) | 1997-04-09 |
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