JPS62131169U - - Google Patents

Description

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

図面は本考案の実施例を示したもので、第１図
は安全弁を有した圧力弁の断面図、第２図は弁体
の断面図、第３図は弁シート材の底面図、第４図
は安全弁の閉弁状態を示す断面図、第５図は第２
実施例の安全弁の断面図、第６図は従来の安全弁
の閉弁状態を示す要部断面図、第７図は弁シート
材が圧縮永久ひずみをおこして凹んだ状態の閉弁
状態の要部断面図である。 １１……安全弁口、２０……弁体、２１……凹
入溝、２２……スカート部、２４……弁シート材
、２５……圧縮ばね、２６……環状凸部。 The drawings show an embodiment of the present invention, in which Fig. 1 is a sectional view of a pressure valve with a safety valve, Fig. 2 is a sectional view of the valve body, Fig. 3 is a bottom view of the valve seat material, and Fig. 4 The figure is a sectional view showing the closed state of the safety valve, and Figure 5 is a sectional view showing the safety valve in the closed state.
A cross-sectional view of the safety valve of the embodiment, FIG. 6 is a cross-sectional view of the main part of a conventional safety valve in the closed state, and FIG. 7 is a main part of the conventional safety valve in the closed state when the valve seat material is depressed due to compression permanent strain. FIG. DESCRIPTION OF SYMBOLS 11... Safety valve port, 20... Valve body, 21... Recessed groove, 22... Skirt part, 24... Valve seat material, 25... Compression spring, 26... Annular convex part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 背面から圧縮ばねで弾発させた弁体を安全弁口
に着座させた弁装置に於いて、外周に複数の凹入
溝を有したスカート部を設け、且つ下面中央に凹
入部を有した弁体の該凹入部内に、弾力性を有し
且つ前記安全弁口よりやや大径な環状凸部を下面
に設けた弁シート材を嵌合させて成る安全弁。 In a valve device in which a valve body is sprung from the back by a compression spring and is seated in a safety valve port, the valve body has a skirt portion having a plurality of recessed grooves on the outer periphery and a recessed portion in the center of the lower surface. A safety valve comprising a valve seat material having elasticity and having an annular convex portion on the lower surface having a slightly larger diameter than the safety valve opening is fitted into the recessed portion.