JPS63193165U

JPS63193165U -

Info

Publication number: JPS63193165U
Application number: JP8215887U
Authority: JP
Priority date: 1987-05-30
Filing date: 1987-05-30
Publication date: 1988-12-13

Description

[Brief explanation of the drawing]

第１図、第２図及び第３図は、本考案の実施例
である逆止め弁内蔵ボール弁の縦断面図である。１……フローテイング形ボール弁、２……弁箱
、３ａ……一体に延設した延設部、３ｂ……別体
に延設した延設部、４……ばね式逆止め弁、８ｂ
……挿入部材に装着したボールシート、８ｃ……
別体の延設部に装着したボールシート、９……挿
入部材、１０ａ……挿入部材の後端に形成した逆
止め弁の弁座、１０ｂ……挿入部材の内側に形成
した円錐面の逆止め弁の弁座、１０ｃ……別体の
延設部の内側に設けた逆止め弁の弁座、１１……
逆止め弁の弁体、１２……弁体の弁座面に装着し
たゴム製又は樹脂製の部材、１３……弁体の当接
部に装着したゴム製又は樹脂製の部材。 1, 2, and 3 are longitudinal sectional views of a ball valve with a built-in check valve, which is an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Floating type ball valve, 2... Valve box, 3a... Extended portion extended integrally, 3b... Extended portion provided separately, 4... Spring type check valve, 8b
...Ball seat attached to the insertion member, 8c...
Ball seat attached to a separate extension part, 9...insertion member, 10a...valve seat of a check valve formed at the rear end of the insertion member, 10b...inverted conical surface formed inside the insertion member Valve seat of a stop valve, 10c... Valve seat of a check valve provided inside a separate extension part, 11...
A valve body of a check valve, 12... A rubber or resin member attached to the valve seat surface of the valve body, 13... A rubber or resin member attached to the abutting part of the valve body.

Claims

[Scope of Claim for Utility Model Registration] (1) In a floating ball type ball valve, one end of the valve body is extended integrally or separately to form an extension part, and the extension part is provided with a spring-type non-return check. A ball valve with a built-in check valve. (2) One end of the valve box is integrally extended to form the extension part, a generally cylindrical insertion member is screwed into the extension part, and a ball seat is attached to the tip of the insertion member. A ball valve with a built-in check valve according to claim 1, wherein a rear end of the insertion member is provided as a valve seat of the check valve. (3) One end of the valve box is integrally extended to form the extension part, a generally cylindrical insertion member is screwed into the extension part, and a ball seat is attached to the tip of the insertion member. A ball valve with a built-in check valve according to claim 1, wherein a conical surface is formed on the inside of the insertion member to form a valve seat of the check valve. (4) At one end of the valve box, a separate part is screwed into the valve box and extended to form the extension part, and a ball seat is attached to the tip of the extension part to form the valve of the ball valve. The ball valve with a built-in check valve according to claim 1, wherein the check valve seat is provided inside the extending portion. (5) The utility model as set forth in claim 1, in which a member made of rubber or resin is attached to the valve seat surface of the valve body of the check valve and the abutment portion that comes into contact when the valve body is retracted. Ball valve with built-in check valve.