JPS6285779U - - Google Patents

Description

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

第１図は本考案の実施例のボール弁の断面図、
第２図は他の実施例のボール弁の弁軸部分のみの
断面図である。 ４：入口、５：出口、６：弁室、７：弁ボール
、９：弁軸、１９：弁軸嵌挿孔、２２：ホルダー
、２４：フランジ、２６：ばね、３０：スナツプ
リング、３１：締付ナツト、３４：突出部。 FIG. 1 is a sectional view of a ball valve according to an embodiment of the present invention.
FIG. 2 is a sectional view of only the valve shaft portion of a ball valve according to another embodiment. 4: Inlet, 5: Outlet, 6: Valve chamber, 7: Valve ball, 9: Valve stem, 19: Valve stem insertion hole, 22: Holder, 24: Flange, 26: Spring, 30: Snap ring, 31: Tightening Attached nut, 34: Projection.

Claims (1)

【実用新案登録請求の範囲】 １ 弁ケーシングにホルダーを取り付け、ホルダ
ーの下面と弁軸に形成したフランジの上面との間
にパツキングを配置し、ホルダー上面の内側に環
状の突出部を形成し、突出部と弁軸に設けたスト
ツパーとの間に薄いリング状の弾性部材を配置し
、弁ケーシングに締付ナツトをねじ結合し、締付
ナツトの下端で弾性部材の外側上面を押し下げ、
ホルダーの突出部を支点にして弾性部材の内側上
面でストツパーを引き上げるようにしたボール弁
の弁軸軸封構造。 ２ ホルダーを弁ケーシングで一体に形成した実
用新案登録請求の範囲第１項記載のボール弁の弁
軸軸封構造。[Claims for Utility Model Registration] 1. A holder is attached to the valve casing, a packing is arranged between the lower surface of the holder and the upper surface of a flange formed on the valve shaft, and an annular protrusion is formed inside the upper surface of the holder, A thin ring-shaped elastic member is arranged between the protrusion and a stopper provided on the valve shaft, a tightening nut is screwed to the valve casing, and the lower end of the tightening nut pushes down the outer upper surface of the elastic member,
A ball valve shaft sealing structure in which a stopper is pulled up on the inner upper surface of an elastic member using the protrusion of the holder as a fulcrum. 2. A valve shaft sealing structure for a ball valve according to claim 1, in which the holder is integrally formed with the valve casing.