JPH0238582U - - Google Patents
Info
- Publication number
- JPH0238582U JPH0238582U JP1988117545U JP11754588U JPH0238582U JP H0238582 U JPH0238582 U JP H0238582U JP 1988117545 U JP1988117545 U JP 1988117545U JP 11754588 U JP11754588 U JP 11754588U JP H0238582 U JPH0238582 U JP H0238582U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- piston
- gland
- outer diameter
- inner diameter
- 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
- 210000004907 gland Anatomy 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
Landscapes
- Details Of Valves (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Description
第１図は本考案実施例のピストンバルブにおけ
るグランド部シール構造を示す断面図、第２図は
グランド部シール構造の詳細を示す要部の拡大断
面図である。
Ａ：ピストンバルブ、Ｂ：グランド部シール構
造、ａ：受圧溝、ｂ：隙間、１：バルブ本体、４
：ピストン、１４，１５，１６：Ｖ型パツキン、
１９：環状スペーサ。
FIG. 1 is a cross-sectional view showing the gland seal structure of a piston valve according to an embodiment of the present invention, and FIG. 2 is an enlarged cross-sectional view of a main part showing details of the gland seal structure. A: Piston valve, B: Gland seal structure, a: Pressure receiving groove, b: Gap, 1: Valve body, 4
: Piston, 14, 15, 16: V-type packing,
19: Annular spacer.
Claims (1)
バルブの切換動作を行うと共に、バルブ本体のグ
ランド部とバルブステムとの間を複数個のＶ型パ
ツキンでシールするようにしたピストンバルブに
おいて、 前記各Ｖ型パツキンの裏面に周設された受圧溝
側に、同受圧溝の曲率より小さい曲率で湾曲し、
かつ、その内径はＶ型パツキンの内径よりも大径
で、外径はＶ型パツキンの外径よりも小径な金属
製薄板の環状スペーサをそれぞれ介装させたこと
を特徴とするピストンバルブにおけるグランド部
シール構造。[Claims for Utility Model Registration] The switching operation of the valve is performed by the pushing action of the piston using air pressure, and the space between the gland part of the valve body and the valve stem is sealed with a plurality of V-shaped packings. In the piston valve made of
A gland in a piston valve characterized in that an annular spacer made of a thin metal plate is interposed therein, the inner diameter of which is larger than the inner diameter of the V-shaped packing, and the outer diameter of which is smaller than the outer diameter of the V-shaped packing. Part seal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988117545U JPH07791Y2 (en) | 1988-09-06 | 1988-09-06 | Gland seal structure in piston valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988117545U JPH07791Y2 (en) | 1988-09-06 | 1988-09-06 | Gland seal structure in piston valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0238582U true JPH0238582U (en) | 1990-03-14 |
| JPH07791Y2 JPH07791Y2 (en) | 1995-01-11 |
Family
ID=31361097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988117545U Expired - Lifetime JPH07791Y2 (en) | 1988-09-06 | 1988-09-06 | Gland seal structure in piston valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07791Y2 (en) |
-
1988
- 1988-09-06 JP JP1988117545U patent/JPH07791Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07791Y2 (en) | 1995-01-11 |