JPH0444576U

JPH0444576U -

Info

Publication number: JPH0444576U
Application number: JP8704690U
Authority: JP
Priority date: 1990-08-22
Filing date: 1990-08-22
Publication date: 1992-04-15

Description

[Brief explanation of the drawing]

第１図は本考案の実施例による弁の開閉装置を
一部を破断して示す縦断面図、第２図は第１図の
−線断面図、第３図は同装置によつて弁が開
かれた状態を示す動作説明図、第４図は従来例に
よる開閉弁を示す縦断面図である。符号の説明、１……流路、２……配管、３……
弁箱、３ａ……取付け孔部、３ｂ……ガスケツト
、４……弁孔、５……弁座、６……弁体、８……
弁棒、１０……雄ねじ部、１１……本体カバー、
１２……底部プレート、１３……雌ねじ部、１４
……内輪側磁石、１５……支持用筒体、１６……
ナツト、１８……内側カバー、１９，２８……Ｏ
リング、２０……ボルト、２３……下ブツシユ、
２４……蓋体、２５……上ブツシユ、２６……支
持用筒体、２６ｂ……首部、２７……外輪側磁石
、２９……手動レバー。 FIG. 1 is a longitudinal cross-sectional view, partially cut away, of a valve opening/closing device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1, and FIG. FIG. 4 is a longitudinal sectional view showing a conventional on-off valve. Explanation of symbols, 1...Flow path, 2...Piping, 3...
Valve box, 3a...Mounting hole, 3b...Gasket, 4...Valve hole, 5...Valve seat, 6...Valve body, 8...
Valve stem, 10...Male thread part, 11...Body cover,
12... Bottom plate, 13... Female threaded part, 14
... Inner ring side magnet, 15 ... Support cylinder, 16 ...
Nut, 18...inner cover, 19,28...O
Ring, 20...Bolt, 23...Lower button,
24... Lid body, 25... Upper bushing, 26... Support cylinder, 26b... Neck, 27... Outer ring side magnet, 29... Manual lever.

Claims

[Scope of utility model registration request]

A support plate onto which the valve stem protruding from the valve body is screwed is attached to the valve body, an inner ring side magnet is attached to the upper part of the valve stem protruding from the support plate surface, and this inner ring side magnet is attached onto the support plate. A cover is attached to airtightly cover the threaded part of the valve stem, and an outer ring magnet is rotatably provided on the outer periphery of the cover, which attracts the inner ring magnet and is rotated by a manual lever. A valve opening/closing device characterized by: