JPS6157276U

JPS6157276U -

Info

Publication number: JPS6157276U
Application number: JP14325084U
Authority: JP
Priority date: 1984-09-20
Filing date: 1984-09-20
Publication date: 1986-04-17
Also published as: JPS622377Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す断面正面図、
第２図及び第３図はそれぞれ流路を遮断した状態
を示す断面正面図である。１…弁本体、１…弁体、９…筒部、１１…孔部
、１２…ボール、１６…ダイアフラム、２０…ス
ピンドル、２１ａ，２１ｂ…周溝部、２３…ノツ
チ、２４…スプリング。 FIG. 1 is a cross-sectional front view showing an embodiment of the present invention;
FIGS. 2 and 3 are sectional front views showing a state in which the flow path is blocked, respectively. DESCRIPTION OF SYMBOLS 1... Valve body, 1... Valve body, 9... Cylindrical part, 11... Hole part, 12... Ball, 16... Diaphragm, 20... Spindle, 21a, 21b... Circumferential groove part, 23... Notch, 24... Spring.

補正昭６０．１．２６実用新案登録請求の範囲を次のように補正する
。Amendment January 26, 1980 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】弁本体内に設けられたダイアフラムに取り付け
られると共に、該弁本体内に設けられた筒部に同
軸状として摺動自在に内嵌されたスピンドルと、
前記筒部に同軸状として摺動可能に外嵌されると
共に、内装したスプリングによつて流路を閉状態
とする方向に付勢された筒状弁体とを備え、前記
スピンドルには所定間隔をもつて一対の周溝部が
凹設され、且つ、前記弁体には内周面の所定位置
に円周状のノツチが形成され、さらに、前記筒部
には該ノツチに対応して複数の孔部が径方向に穿
設されると共に、それぞれの孔部に前記ノツチに
係合するボールが嵌め込まれ、前記弁本体内に流
入した流体の異常圧力によつて前記ダイアフラム
が動作することで前記スピンドルを軸心方向に移
動させ、常時は流路を開状態に保持するように前
記ノツチに係合したボールの係合状態を解除する
ようにしたことを特徴とする緊急遮断弁。[Claims for Utility Model Registration] A spindle attached to a diaphragm provided within a valve body and slidably fitted coaxially into a cylindrical portion provided within the valve body;
A cylindrical valve body is coaxially and slidably fitted on the cylindrical part and is biased by an internal spring in a direction to close the flow path, and the spindle is provided with a cylindrical valve body having a predetermined interval. A pair of circumferential grooves are recessed in the valve body, a circumferential notch is formed at a predetermined position on the inner peripheral surface of the valve body, and a plurality of circumferential grooves are formed in the cylindrical part corresponding to the notches. Holes are formed in the radial direction, and balls that engage with the notches are fitted into each hole, and the diaphragm is operated by the abnormal pressure of the fluid that has flowed into the valve body. An emergency shutoff valve characterized in that the spindle is moved in the axial direction to release the engagement state of the ball engaged with the notch so as to normally maintain the flow path in an open state.

Claims

[Scope of utility model registration request]

a spindle attached to a diaphragm provided within the valve body and slidably fitted coaxially into a cylindrical portion provided within the valve body;
A cylindrical valve body is coaxially and slidably fitted on the cylindrical part and is biased by an internal spring in a direction to close the flow path, and the spindle is provided with a cylindrical valve body having a predetermined interval. A pair of circumferential grooves are recessed in the valve body, and a plurality of notches are formed at predetermined positions on the inner circumferential surface of the valve body, and a plurality of holes are formed in the cylindrical portion corresponding to the notches. are bored in the radial direction, and a ball that engages with the notch is fitted into each hole, and the diaphragm is operated by the abnormal pressure of the fluid that has flowed into the valve body, thereby causing the spindle to move. An emergency shutoff valve characterized in that the ball is moved in the axial direction to release the ball engaged with the notch so as to normally maintain the flow path in an open state.