JPH01135270U - - Google Patents

Description

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

第１図は外観斜視図、第２図は一部を切り欠い
で内部を示す斜視図、第３図は縦断面図、第４図
は横断面図、第５図は第４図Ｖ―Ｖ線に沿つた縦
断面図、第６，７図は弁体と弁座との作動関係を
示す拡大断面図、第８図は弁座と弁体との材質関
係を示す拡大断面図、第９，１０図は作動圧力回
路図である。 １……弁本体、２……弁体回動空間、３……入
口、４……出口、５……弁体退避空間、６，７…
…弁棒、８……弁体、９……連結板、１０……弁
座、１１……ピストン状突起、１２，１３……圧
力空間、１４，１５……圧力ポート、１６……ピ
ストン―シリンダ装置、１７，１８……スピード
コントロール弁、１９……四方口電磁切換弁、２
０，２１……スピードコントロール弁。 Fig. 1 is an external perspective view, Fig. 2 is a partially cutaway perspective view showing the inside, Fig. 3 is a vertical cross-sectional view, Fig. 4 is a cross-sectional view, Fig. 5 is Fig. 4 V-V 6 and 7 are enlarged sectional views showing the operational relationship between the valve body and the valve seat. FIG. 8 is an enlarged sectional view showing the material relationship between the valve seat and the valve body. , 10 is an operating pressure circuit diagram. 1... Valve body, 2... Valve body rotation space, 3... Inlet, 4... Outlet, 5... Valve body retraction space, 6, 7...
... Valve stem, 8 ... Valve body, 9 ... Connection plate, 10 ... Valve seat, 11 ... Piston-like projection, 12, 13 ... Pressure space, 14, 15 ... Pressure port, 16 ... Piston. Cylinder device, 17, 18...speed control valve, 19...four-way solenoid switching valve, 2
0,21...Speed control valve.

Claims (1)

【実用新案登録請求の範囲】 (1) 内部に断面円形の弁体回動空間２を有する
弁本体１と、該弁体回動空間内において回動自在
な円板状の弁体８と、該弁体８の外周縁に接離し
得る弁座１０とを含み、弁体８は弁体回動空間２
の内周面と接触しない直径を有し、弁座１０を弁
体８の外周縁に対して前進後退自在としたことを
特徴とするバタフライ弁。 (2) 内部に略球状の弁体回動空間２を有する弁
本体１と、該弁体回動空間２内において回動自在
な円板状の弁体８と、該弁体８の外周縁に接離自
在な弁座１０とを含み、弁体回動空間２は弁の入
口３から出口４に向かつて流過する流体の流路の
径より若干大なる直径を有して流路の外周に弁体
退避空間５が作出され、弁体８は開弁位置におい
て前記弁体退避空間５内に位置付けられることを
特徴とするバタフライ弁。[Claims for Utility Model Registration] (1) A valve body 1 having a valve body rotation space 2 with a circular cross section therein, a disc-shaped valve body 8 that is rotatable within the valve body rotation space, The valve body 8 includes a valve seat 10 that can be moved into and out of contact with the outer peripheral edge of the valve body 8, and the valve body 8 has a valve body rotation space 2.
A butterfly valve characterized in that the valve seat 10 has a diameter that does not come into contact with the inner peripheral surface of the valve body 8, and the valve seat 10 can freely move forward and backward relative to the outer peripheral edge of the valve body 8. (2) A valve body 1 having a substantially spherical valve rotation space 2 therein, a disk-shaped valve body 8 that is rotatable within the valve body rotation space 2, and an outer peripheral edge of the valve body 8. The valve body rotation space 2 has a diameter slightly larger than the diameter of the flow path of the fluid flowing from the inlet 3 to the outlet 4 of the valve. A butterfly valve characterized in that a valve body retraction space 5 is created on the outer periphery, and the valve body 8 is positioned within the valve body retraction space 5 in the valve open position.