JPS6170657U

JPS6170657U -

Info

Publication number: JPS6170657U
Application number: JP15534884U
Authority: JP
Priority date: 1984-10-15
Filing date: 1984-10-15
Publication date: 1986-05-14

Description

[Brief explanation of drawings]

第１図は本考案の実施例による入口弁の管路に
取付け、弁が閉じた状態を示す断面平面図、第２
図は第１図における楕円Ａ部の拡大図、第３図は
従来の入口弁を管路に取付け、弁が閉じた状態を
示す断面平面図、第４図は第３図における楕円Ｂ
部の拡大図である。１：入口弁、２，３：管路、４：弁体、４ａ：
弁孔としての通流管、４ｃ：弁体の座、５：弁胴
、５ｃ：シールリング、５ｄ：球面状の座、５ｅ
：シールリングの胴部、５ｆ：空間、５ｈ：環状
の溝、７，８，９：加圧流体の通路。 FIG. 1 is a cross-sectional plan view showing an inlet valve according to an embodiment of the present invention installed in a pipe line and the valve is closed;
The figure is an enlarged view of part A of the ellipse in Figure 1, Figure 3 is a cross-sectional plan view showing a conventional inlet valve attached to a pipe and the valve closed, and Figure 4 is an enlarged view of ellipse B in Figure 3.
FIG. 1: Inlet valve, 2, 3: Pipe line, 4: Valve body, 4a:
Flow pipe as a valve hole, 4c: Valve body seat, 5: Valve body, 5c: Seal ring, 5d: Spherical seat, 5e
: body of seal ring, 5f: space, 5h: annular groove, 7, 8, 9: passage for pressurized fluid.

Claims

[Scope of utility model registration request]

A valve body having a valve hole through which fluid flows and a spherical seat, a valve body rotatably supporting the valve body around an axis perpendicular to the axis of the pipe, and Consists of a movable seal ring placed on the valve body as a valve seat.
When the seat of the valve body and the seal ring are pressed against each other, fluid flow is cut off, and when they are not pressed against each other, the valve body is allowed to rotate, and when the valve body is rotated by 90 degrees, fluid flows through the valve hole. In the valve seat structure of an inlet valve that conducts flow, the seal ring is a U-shaped annular opening shell, and the seal ring is inserted into an annular groove provided in the valve body from the opening of the seal ring. A body on one side of the valve body is capable of contacting the seat of the valve body, a body on the other side is fixed to a side wall of the groove, and pressure is applied to communicate with a space formed by the groove and the seal ring. A fluid passage is provided to penetrate the valve body, and pressurized fluid flows into the space from the outside through the passage, and the seal ring and the seat of the valve body are brought into pressure contact by elastic deformation of the seal ring. The valve seat structure of the inlet valve is characterized by: