JPS633573U

JPS633573U -

Info

Publication number: JPS633573U
Application number: JP9649286U
Authority: JP
Priority date: 1986-06-24
Filing date: 1986-06-24
Publication date: 1988-01-11

Description

[Brief explanation of the drawing]

第１図は本考案に係るバキユームブレーカーの
閉弁時の状態を示す縦断面図、第２図は従来のバ
キユームブレーカーの開弁時の状態を示す縦断面
図。１はバキユームブレーカー、２はボデー、３は
弁座、４は弁体、５はＯリング、６は溝、７は軸
、８はストツパー部、９は固定穴、１０は流通穴
、１１は壁、１２は座部、１３は壁、１４はかし
め部。 FIG. 1 is a vertical cross-sectional view showing the vacuum breaker according to the present invention when the valve is closed, and FIG. 2 is a vertical cross-sectional view showing the conventional vacuum breaker when the valve is open. 1 is a vacuum breaker, 2 is a body, 3 is a valve seat, 4 is a valve body, 5 is an O-ring, 6 is a groove, 7 is a shaft, 8 is a stopper part, 9 is a fixing hole, 10 is a circulation hole, 11 is a 12 is the wall, 13 is the wall, and 14 is the caulking part.

Claims

[Claims for Utility Model Registration] (1) Shaft 7 of an umbrella-shaped valve body 4 made of an elastic material such as rubber, which has a V-shaped umbrella 25 at the lower end and a shaft 7 at the upper center thereof. , the umbrella part 25
is inserted into the fixing hole 9 of the valve seat 3 so that the tip of the outer periphery is pressed against the lower surface of the valve seat 3, and the shaft 7 is expandable and retractable. A valve seat 3 having a concave cross section is fitted into the wall 11 of the body 2, which is opened in a stepped manner from above and forms a wall 11, a seat portion 12, and a wall 13.
A vacuum breaker characterized in that the valve seat 3 is fixed to the body 2 by caulking a caulking part 14 formed on the upper part of the body 2 inward. (2) The vacuum breaker according to claim 1, wherein the valve seat 3 having a concave cross section is made of an elastomer.