JPH0284075U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの考案による磁力式緊急遮断弁の概
略縦断面図、第２図は平面図、第３図は従来の磁
力式緊急遮断弁の概略縦断面図である。 １，２１……ケーシング、２，２２……流入孔
、３，２３……流出孔、４，２４……大径孔、５
，２５……浮上台、６，２６……コイル、７，８
，２７……孔、９，２９……マグネツト弁、１０
，３０……マグネツト弁座、１１，３１……Ｏリ
ング、１２……補助弁。 FIG. 1 is a schematic vertical sectional view of a magnetic emergency shutoff valve according to the invention, FIG. 2 is a plan view, and FIG. 3 is a schematic vertical sectional view of a conventional magnetic emergency shutoff valve. 1, 21... Casing, 2, 22... Inflow hole, 3, 23... Outflow hole, 4, 24... Large diameter hole, 5
, 25... Levitation platform, 6, 26... Coil, 7, 8
, 27... Hole, 9, 29... Magnetic valve, 10
, 30...Magnetic valve seat, 11, 31...O ring, 12...Auxiliary valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 流入孔と流出孔とを有するケーシングの内部の
前記流入孔側に、筒状をなし、かつ、側面に孔が
穿設されている浮上台を配設するとともに、前記
流出孔側に、マグネツト弁座を配設し、前記ケー
シングの内部にマグネツト弁を位置して、前記浮
上台の上面に吸着されて上面を閉塞する位置と、
前記マグネツト弁座に吸着されて流出孔を閉塞す
る位置との間を移動可能とし、さらに、前記浮上
台の内部に、閉塞された上面に複数の孔が穿設さ
れるとともに、流体の圧力に応じて上下動可能な
補助弁を配設し、流体の圧力が設定値以下の時、
流体は前記補助弁の上面の孔および浮上台の孔を
介して流出孔から流出し、設定値になつた時、前
記補助弁が上昇して補助弁の孔を介して前記マグ
ネツト弁にのみ流体が作用し、前記マグネツト弁
が浮上台から離隔したのち、前記マグネツト弁座
に吸着され、前記流出孔が閉塞して流体の流れが
阻止されることを特徴とする磁力式緊急遮断弁。 A floating platform having a cylindrical shape and a hole bored in the side surface is disposed inside the casing having an inflow hole and an outflow hole on the side of the inflow hole, and a magnetic valve is disposed on the side of the outflow hole. a position where a seat is disposed, a magnetic valve is located inside the casing, and the magnetic valve is attracted to the upper surface of the floating platform to close the upper surface;
It is movable between a position where it is attracted to the magnetic valve seat and closes the outflow hole, and a plurality of holes are bored in the closed upper surface of the levitation platform, and a plurality of holes are formed in the closed upper surface of the levitation platform. An auxiliary valve is installed that can move up and down accordingly, and when the fluid pressure is below the set value,
The fluid flows out from the outflow hole through the hole in the upper surface of the auxiliary valve and the hole in the floating platform, and when the set value is reached, the auxiliary valve rises and flows only to the magnetic valve through the hole in the auxiliary valve. The magnetic emergency shutoff valve is characterized in that, after the magnetic valve is separated from the floating platform, it is attracted to the magnetic valve seat, the outflow hole is closed, and the flow of fluid is blocked.