JPH0349477U

JPH0349477U -

Info

Publication number: JPH0349477U
Application number: JP11036489U
Authority: JP
Priority date: 1989-09-22
Filing date: 1989-09-22
Publication date: 1991-05-14

Description

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

第１図はこの考案の一実施例を示す全開状態の
縦断正面図、第２図は同上の全閉状態の縦断正面
図、第３図は従来例を示す縦断正面図である。１……弁箱、２……下部開口、３……環状フロ
ート、５……弁体、６……フランジ、８……ダイ
ヤフラム、１０……弁蓋、１０ａ……筒壁、１１
……開口部、１２……ストツパ、１４……通気孔
、１５……カバー、１６……弾性弁座、１８……
小弁室、２０……小通気孔、２１……小通気孔弁
座、２３……フロート、２６……弁体。 FIG. 1 is a longitudinal sectional front view showing an embodiment of this invention in a fully open state, FIG. 2 is a longitudinal sectional front view of the same fully closed state, and FIG. 3 is a longitudinal sectional front view showing a conventional example. DESCRIPTION OF SYMBOLS 1... Valve box, 2... Lower opening, 3... Annular float, 5... Valve body, 6... Flange, 8... Diaphragm, 10... Valve lid, 10a... Cylinder wall, 11
...Opening, 12...Stopper, 14...Vent hole, 15...Cover, 16...Elastic valve seat, 18...
Small valve chamber, 20... Small vent, 21... Small vent valve seat, 23... Float, 26... Valve body.

Claims

【実用新案登録請求の範囲】弁箱内に環状フロートを収納し、このフロート
の上面に筒状の弁体を立設し、前記弁箱に設けた
弁蓋に弁体が挿通する開口部を形成し、前記弁蓋
の上面に立設した縦棧上部に前記開口部の上方を
覆うカバーを設け、このカバーの下面に前記弁体
の上端が当接する環状の弾性弁座を設け、この弾
性弁座に囲まれた範囲内のカバー部分に小弁室を
設け、この小弁室の上部に小空気孔を設けるとと
もに、小弁室内に該小空気孔を開閉するフロート
を収納した空気弁において、前記弁体の下端部外周と弁箱が、弁体の上端が
前記弾性弁座に接離可能にダイヤフラムで水密を
保つて連結されていることを特徴とする空気弁。[Scope of Claim for Utility Model Registration] An annular float is housed in a valve box, a cylindrical valve body is erected on the upper surface of the float, and an opening through which the valve body is inserted is formed in a valve cover provided in the valve box. A cover is provided on the upper part of the vertical beam that stands upright on the upper surface of the valve cover, and a cover that covers the upper part of the opening is provided on the lower surface of the cover, and an annular elastic valve seat is provided on the lower surface of the cover with which the upper end of the valve body comes into contact. In an air valve, a small valve chamber is provided in the cover part within the area surrounded by the valve seat, a small air hole is provided in the upper part of the small valve chamber, and a float for opening and closing the small air hole is housed in the small valve chamber. . An air valve, wherein the outer periphery of the lower end of the valve body and the valve box are connected in a watertight manner by a diaphragm such that the upper end of the valve body can come into contact with and separate from the elastic valve seat.