JPH0349476U

JPH0349476U -

Info

Publication number: JPH0349476U
Application number: JP11036389U
Authority: JP
Priority date: 1989-09-22
Filing date: 1989-09-22
Publication date: 1991-05-14
Anticipated expiration: 2003-11-29
Also published as: JPH0545899Y2

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例を示す縦断正面図
、第２図は同上の要部の拡大断面図、第３図乃至
第６図は同上の作用を説明する縦断正面図、第７
図は別の実施例を示す縦断正面図、第８図は第２
図と対応する同上の要部の拡大断面図、第９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……大空気孔
、５……大空気孔弁座、６……ガイド部材、１０
……遊動弁体、１１……ストツパ、１３……フロ
ート、１４……保持部材、１５……台座、１６…
…保持筒、１７……保持リング、１８……中央隔
壁、２０……弁体収納室、２１……コイルばね、
２３……押圧部材、２９……弁座面、３１……小
空気孔弁座、３２……小空気孔、３３……突起、
３５……弁体弁座。 Fig. 1 is a longitudinal sectional front view showing an embodiment of the invention, Fig. 2 is an enlarged sectional view of the main parts of the same, Figs.
The figure is a longitudinal sectional front view showing another embodiment, and FIG.
FIG. 9 is an enlarged sectional view of the main parts of the same as the above corresponding to the figure, and FIG. 9 is a longitudinal sectional front view showing a conventional example. DESCRIPTION OF SYMBOLS 1... Valve box, 2... Lower opening, 3... Large air hole, 5... Large air hole valve seat, 6... Guide member, 10
... Idle valve body, 11 ... Stopper, 13 ... Float, 14 ... Holding member, 15 ... Pedestal, 16 ...
...Retaining cylinder, 17...Retaining ring, 18...Central partition, 20...Valve body storage chamber, 21...Coil spring,
23...Press member, 29...Valve seat surface, 31...Small air hole valve seat, 32...Small air hole, 33...Protrusion,
35... Valve body valve seat.

Claims

[Scope of Claim for Utility Model Registration] (1) A valve box having a lower opening that communicates with the inside of the water pipe is installed in the upper part of the water pipe, and a large air supply is installed in the center of the upper wall that closes the upper part of the valve box. A hole is provided, a guide member is fixed in the valve box, and a cylindrical floating valve body whose upper end is closed by the upper wall and whose lower end is open is placed inside the guide member so that the large air hole can be closed. In such a rapid air valve that can be raised and lowered freely, an elastic small air hole valve seat having a small air hole is provided in the center of the upper wall of the floating valve body, and a float is installed in a guide member below the floating valve body. A holding member whose upper end surface abuts the lower surface of the upper wall of the floating valve element is erected at a position facing the small air hole of the floating valve element of the float, and the upper end surface abuts the holding member. A valve body that opens and closes the small air hole in contact with the valve body is provided so as to be able to move up and down with a stroke smaller than the vertical stroke of the float, and a biasing member having a biasing force sufficient to support the weight of the valve body is provided on the holding member. , the small air hole is closed by the upper end surface of the valve body due to the floating of the float, and in the process of the upper end surface of the holding member coming into contact with the lower surface of the upper wall of the floating valve body, the small air hole is closed by the valve seat surface of the valve body. 1. A rapid air valve characterized in that the valve body is configured to descend relative to a holding member against the biasing force of a biasing member while the valve body remains in the position. (2) A valve box having a lower opening that communicates with the inside of the water pipe is installed in the upper part of the water supply pipe, and a large air hole is provided in the center of the upper wall that closes off the upper part of the valve box, and the inside of the valve box is A guide member is fixed to the guide member, and a cylindrical floating valve body whose upper end is closed by the upper wall and whose lower end is open is provided in the guide member so as to be movable up and down so as to close the large air hole. In the air valve, a small air hole is provided in the center of the upper wall of the floating valve body,
A float is provided in a guide member below the floating valve body so as to be movable up and down, and a holding member whose upper end surface abuts the lower surface of the upper wall of the floating valve body is provided at a position of the float facing the small air hole of the floating valve body. The holding member has an elastic valve seat at its upper end, and when the valve seat comes into contact with it, the valve body opens and closes the small air hole, and the valve body is moved with a stroke smaller than the lifting stroke of the float. A biasing member having a biasing force sufficient to support the weight of the valve body is provided on the holding member, and the small air hole is closed at the valve seat of the valve body at the upper end of the valve body by the floating of the float. In the process where the upper end surface of the holding member comes into contact with the lower surface of the upper wall of the floating valve element, the valve element resists the urging force of the urging member and the holding member A rapid air valve characterized by being configured to descend relative to the air valve.