JPH0318938U

JPH0318938U -

Info

Publication number: JPH0318938U
Application number: JP7490989U
Authority: JP
Priority date: 1989-06-28
Filing date: 1989-06-28
Publication date: 1991-02-25

Description

[Brief explanation of the drawing]

第１図はポンプ用逆止弁の要部断面図、第２図
は弁体を示す図、第３図は従来の弁体の熱間鍛造
成形の概略図、第４図は本案の弁体の熱間鍛造成
形の概略図を示す。１……逆止弁、３……弁体、３ａ……弾性体４
装着溝部、３ｂ……下部案内部、３ｃ……上部案
内部、４……弾性体、９……成形型合せ面。 Figure 1 is a sectional view of the main parts of a pump check valve, Figure 2 is a diagram showing the valve body, Figure 3 is a schematic diagram of conventional hot forging of the valve body, and Figure 4 is the valve body of the present invention. A schematic diagram of hot forging is shown. 1... Check valve, 3... Valve body, 3a... Elastic body 4
Mounting groove portion, 3b...Lower guide portion, 3c...Upper guide portion, 4...Elastic body, 9...Mold mating surface.

Claims

[Claims for Utility Model Registration] 1. A valve body formed by forging, in which an elastic body is fitted, and a valve body guide portion coaxial with the valve body movement axis is connected to both ends of the valve body in the direction of the valve body movement axis. 1. A valve body for a check valve for a pump, characterized in that, in each of the valve bodies provided in the valve body, a mold mating surface at the time of forging the valve body is located in an annular groove portion in which an elastic body is attached. 2. A valve body for a check valve for a pump according to claim 1, characterized in that at least three surfaces of the elastic body mounting groove are machined to form the elastic body mounting groove.