JPH0425073U

JPH0425073U -

Info

Publication number: JPH0425073U
Application number: JP6698090U
Authority: JP
Priority date: 1990-06-25
Filing date: 1990-06-25
Publication date: 1992-02-28

Description

[Brief explanation of the drawing]

第１図は斜視図、第２図は非シール状態の縦断
面図、第３図はシール状態の縦断面図、第４図は
弁体の一部を切り欠いだ斜視図、第５図は弁体と
シールリングを分解した斜視図、第６図はシール
リングの正面図、第７図は同平面図、第８図は第
６図Ａ−Ａ′線に沿つた縦断面図、第９図は第６
図Ｂ−Ｂ′線に沿つた横断面図、第１０図はボス
部における弁体、シートリング及び弁棒の組み立
て前の断面図、第１１図は弁体とシートリングの
組み立て前の断面図、第１２図はボス部の組み立
て時の断面図、第１３図は弁体とシートリングの
組立時の断面図、第１４，１５図は加圧時を示す
断面図である。１……弁本体、２……流体通路、３……弁体、
４……駆動側弁棒、５……遊動側弁棒、６……弁
軸筒、７……軸孔、８……嵌合溝、９……シート
リング、１０……ボス穴、１１，１２……軸孔、
１３……ボス部、１４……環状溝、１５……座く
り部、１６……突条、１７……間隙、１８……環
状突部、１９……ボス部、２０……貫通孔、２１
……開口、２２……弁座面、２３……間隙、２４
，２５……Ｏリング、２６……平行ピン、２７…
…テーパーピン。 Fig. 1 is a perspective view, Fig. 2 is a vertical cross-sectional view in an unsealed state, Fig. 3 is a longitudinal cross-sectional view in a sealed state, Fig. 4 is a perspective view with a part of the valve body cut away, and Fig. 5 is a longitudinal cross-sectional view in a non-sealed state. 6 is a front view of the seal ring, FIG. 7 is a plan view of the same, FIG. 8 is a vertical sectional view taken along line A-A' in FIG. 6, and FIG. 9 is an exploded perspective view of the valve body and seal ring. The figure is number 6
A cross-sectional view taken along the line B-B' in Figure 10. Figure 10 is a cross-sectional view of the valve body, seat ring, and valve stem at the boss section before assembly. Figure 11 is a cross-sectional view of the valve body and seat ring before assembly. , FIG. 12 is a cross-sectional view of the boss section when assembled, FIG. 13 is a cross-sectional view of the valve body and seat ring when assembled, and FIGS. 14 and 15 are cross-sectional views when pressurized. 1...Valve body, 2...Fluid passage, 3...Valve body,
4... Drive side valve stem, 5... Idle side valve stem, 6... Valve stem cylinder, 7... Shaft hole, 8... Fitting groove, 9... Seat ring, 10... Boss hole, 11, 12...shaft hole,
13... Boss part, 14... Annular groove, 15... Counterbore part, 16... Protrusion, 17... Gap, 18... Annular protrusion, 19... Boss part, 20... Through hole, 21
...Opening, 22...Valve seat surface, 23...Gap, 24
, 25... O-ring, 26... Parallel pin, 27...
…Taper pin.

Claims

[Scope of utility model registration request]

A soft elastic seat ring having an outer diameter smaller than the inner diameter of the valve seat surface of the valve body in a non-pressurized state is fitted onto the outer peripheral surface of the valve body, and fluid pressure is applied between the seat ring and the valve body. , a non-sliding type butterfly valve characterized in that the seat ring is pushed out in the outer diameter direction so as to come into close contact with the valve seat surface.