JPS6368584U

JPS6368584U -

Info

Publication number: JPS6368584U
Application number: JP16384986U
Authority: JP
Priority date: 1986-10-24
Filing date: 1986-10-24
Publication date: 1988-05-09
Anticipated expiration: 2001-10-24
Also published as: JPH0627899Y2

Description

[Brief explanation of the drawing]

第１図は本考案の衝撃緩和構造の耐蝕弁の一実
施例を示す縦断面説明図、第２図は第１図におい
て、ピストン弁のみを９０°回転させた状態を示
す縦断面説明図、第３図はピストン弁の上部まわ
りの斜視説明図、第４図は従来の耐蝕弁の部分断
面図で、第４図ａは弁の開いた状態を示し、第４
図ｂは弁の閉じた状態を示している。１……ダイアフラム、２……腐蝕性の液体、５
……ピストン弁、５ａ……弁体シール部、５ｂ，
５ｄ……小径部、５ｃ……大径部、６……弁体シ
ール、７……横方向の流路、８……縦方向の流路
、９……シリンダ、１０，１３……Ｖパツキング
、１１……角溝、１２……Ｏリング、１４，１５
……小径空胴部、１６……大径空胴部、１７……
弁座、１８……弁口、２０……接続口、２１……
開駆動孔、２２……閉駆動孔、２３……角溝、２
４，２５……細孔。 FIG. 1 is an explanatory longitudinal cross-sectional view showing one embodiment of a corrosion-resistant valve with an impact mitigation structure of the present invention, FIG. 2 is an explanatory longitudinal cross-sectional view showing a state in which only the piston valve in FIG. 1 has been rotated 90 degrees, Fig. 3 is a perspective explanatory view of the upper part of the piston valve, Fig. 4 is a partial sectional view of a conventional corrosion-resistant valve, Fig. 4a shows the valve in the open state,
Figure b shows the valve in the closed state. 1...Diaphragm, 2...Corrosive liquid, 5
... Piston valve, 5a ... Valve body seal portion, 5b,
5d...Small diameter part, 5c...Large diameter part, 6...Valve seal, 7...Horizontal flow path, 8...Vertical flow path, 9...Cylinder, 10, 13...V packing , 11... Square groove, 12... O-ring, 14, 15
...Small diameter cavity, 16...Large diameter cavity, 17...
Valve seat, 18... Valve port, 20... Connection port, 21...
Open drive hole, 22... Close drive hole, 23... Square groove, 2
4,25... Pore.

Claims

[Claims for Utility Model Registration] 1. A valve port 18 with a valve seat 17 at the top, a connection port 20 at the bottom, small-diameter cavities 14 and 15 at the top and bottom of the interior, and a central part of the interior. A cylinder 9 made of a corrosion-resistant material and having a large-diameter cavity 16 is slidably provided within this cylinder via packing, and small-diameter portions 5b and 5d are provided at the upper and lower portions.
A piston valve 5 made of a corrosion-resistant material has a large-diameter portion 5c in the center and a vertical flow path 8 in the axial center, and the upper end of the piston valve communicates with the vertical flow path 8. The valve body seal portion 5a is connected to the valve body seal portion 5a via the horizontal passage 7, the opening drive hole 21 is connected to the upper portion of the large diameter cavity portion 16 of the cylinder, and the opening drive hole 21 is connected to the lower portion of the large diameter cavity portion of the cylinder. Connected closing drive hole 22
A corrosion-resistant valve with a shock-reducing structure characterized by comprising: 2. An O-ring 12 and a V-packing 13 are provided as packing for the small-diameter cavities 14 and 15 of the cylinder, and in order to prevent interference between the valve driving pressure and the controlled pressure between the O-ring 12 and the V-packing 13. A corrosion-resistant valve having an impact-reducing structure according to claim 1, which is provided with pores 24 and 25.