JPS6059872U

JPS6059872U - butterfly valve

Info

Publication number: JPS6059872U
Application number: JP15238083U
Authority: JP
Inventors: 大崎　幹雄; 重田　典雅
Original assignee: 大阪瓦斯株式会社; 株式会社巴技術研究所
Priority date: 1983-09-30
Filing date: 1983-09-30
Publication date: 1985-04-25

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の正面図、第２図は第１図の
切断面線■−■から見た縦断面図、第３図は第２図のセ
クション■の拡大断面図、第４図は接触部分１８と内周
面２３との位置関係を示す図、第５図は接触部分１９と
内周面２４との位置関係を示す図である。１・・・弁箱、６．　７．２３．　２４・・・内周面、
４゜５・・・弁座、８・・・弁体、１６，１７・・・シ
ール部、１８．１９・・・接触部分、３９・・・環゛状
凹所、４５，４６・・・シール部材、４７．５０・・・
抑え片、５０，５□２・・・ボルト。Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view taken along the section line ■-■ in Fig. 1, Fig. 3 is an enlarged cross-sectional view of section ■ in Fig. 2, FIG. 4 is a diagram showing the positional relationship between the contact portion 18 and the inner peripheral surface 23, and FIG. 5 is a diagram showing the positional relationship between the contact portion 19 and the inner peripheral surface 24. 1... Valve box, 6. 7.23. 24...Inner peripheral surface,
4゜5... Valve seat, 8... Valve body, 16, 17... Seal portion, 18.19... Contact portion, 39... Annular recess, 45, 46... Seal member, 47.50...
Holding piece, 50,5□2... bolt.

Claims

[Scope of utility model registration request]

In a butterfly valve, which has a valve body, a valve seat provided in the valve body, and a valve body whose outer peripheral surface is angularly displaced so that it comes into contact with and separates from the inner surface of the valve seat, the valve seat is A pair of seal members formed on the outer circumferential surface of the valve body can be brought into contact with the inner circumferential surface of each valve seat. 1. A butterfly valve having a U-shape opened toward the front, the entire sealing member being formed in an annular shape, and each side portion of the sealing member on both end surfaces of the valve body being fixed to the valve body.