JPH0326878U

JPH0326878U -

Info

Publication number: JPH0326878U
Application number: JP8650789U
Authority: JP
Priority date: 1989-07-25
Filing date: 1989-07-25
Publication date: 1991-03-19

Description

[Brief explanation of the drawing]

第１図は本考案に係る遮断弁の一実施例の弁開
閉状態を示す縦断面図、第２図乃至第４図は従来
の遮断弁の弁開閉状態を示す縦断面図、第５図は
同じく主弁及び第２のスプリングの荷重変化を示
すグラフである。１……流通路、１ａ……流体入口側、１ｂ……
流体出口側、２……主弁ノズル部、３……主弁、
３ａ……副ノズル部、４……副弁、５……フレー
ム、６……弁軸、８……弁駆動手段（ソレノイド
）、１０……付勢手段（スプリング）。 FIG. 1 is a vertical cross-sectional view showing the valve opening and closing states of an embodiment of the shutoff valve according to the present invention, FIGS. 2 to 4 are vertical cross-sectional views showing the valve opening and closing states of a conventional shutoff valve, and FIG. It is a graph similarly showing the load change of the main valve and the second spring. 1...Flow path, 1a...Fluid inlet side, 1b...
Fluid outlet side, 2... Main valve nozzle part, 3... Main valve,
3a... Sub nozzle portion, 4... Sub valve, 5... Frame, 6... Valve shaft, 8... Valve driving means (solenoid), 10... Biasing means (spring).

Claims

[Scope of utility model registration request]

a flow chamber that communicates the fluid inlet side and the outlet side via the main valve nozzle section; a main valve that is located on the fluid upstream side and faces the main valve nozzle section; and a flow chamber that is opened in the center of the main valve. A sub-valve facing the sub-nozzle part, a frame fixed to the back of the main valve and slidably inserting and holding the sub-valve, and a valve driving means coupled to a valve shaft of the sub-valve. The main valve nozzle part and the sub-nozzle part are each formed downward, the valve shaft is disposed in a substantially vertical direction, and the sub-valve is urged into contact with the sub-nozzle part. A shutoff valve characterized in that it is provided with a biasing means.