JPH01144577U

JPH01144577U -

Info

Publication number: JPH01144577U
Application number: JP4166688U
Authority: JP
Priority date: 1988-03-29
Filing date: 1988-03-29
Publication date: 1989-10-04

Description

[Brief explanation of the drawing]

第１図はこの考案によるリリーフバルブの概略
縦断面図、第２図は弾性体の弁座と金属製の本体
の凸部とが当接する状態を示す拡大概略図、第３
図は弁座と保持部材と本体の凸部との押圧当接状
態を示す拡大概略図、第４図〜第７図は他の実施
例を示す概略拡大図、第８図は従来のリリーフバ
ルブの概略縦断面図、第９図は第８図に示すもの
の弾性体の弁座と金属製の本体の凸部とが当接す
る状態を示す拡大概略図、第１０図は弁座と保持
部材と本体の凸部との押圧当接状態を示す拡大概
略図である。１，１１……本体、２，１２……弁座、２ａ…
…基部、２ｂ……上部、２ｃ，２ｄ……面取り、
３，１３……保持部材、３ａ……凹部、３ｂ……
大径部、３ｃ……段部、３ｄ……テーパ部、４，
１４……ばね、５……キヤツプ、６，１６……孔
、７，１７……凸部、ｅ，ｆ……間隙。 Fig. 1 is a schematic vertical sectional view of the relief valve according to this invention, Fig. 2 is an enlarged schematic view showing a state in which the valve seat of the elastic body and the convex part of the metal main body are in contact with each other, and Fig. 3
The figure is an enlarged schematic diagram showing the pressed contact state of the valve seat, the holding member, and the convex part of the main body, Figures 4 to 7 are schematic enlarged diagrams showing other embodiments, and Figure 8 is a conventional relief valve. 9 is an enlarged schematic view of the valve seat shown in FIG. 8 showing a state in which the valve seat of the elastic body and the convex part of the metal main body are in contact with each other, and FIG. 10 is a schematic longitudinal sectional view of the valve seat shown in FIG. FIG. 3 is an enlarged schematic diagram showing a state of press contact with a convex portion of the main body. 1, 11... Main body, 2, 12... Valve seat, 2a...
...Base, 2b...Top, 2c, 2d...Chamfer,
3, 13... Holding member, 3a... Recess, 3b...
Large diameter part, 3c...stepped part, 3d...tapered part, 4,
14... Spring, 5... Cap, 6, 16... Hole, 7, 17... Convex portion, e, f... Gap.

Claims

[Scope of utility model registration request]

a metal main body having a large diameter part and a small diameter part; a valve seat provided inside the large diameter part of the main body and held by a holding member to open and close the small diameter part; The holding member includes a cap disposed on a large diameter portion of the main body, and a spring disposed between the cap and the holding member to urge the valve seat in a direction to close the small diameter portion. has a large diameter portion that receives the valve seat, and the upper portion of the valve seat located in the large diameter portion has a smaller diameter than the large diameter portion of the holding member, and the upper and lower peripheral edges of the upper portion A relief valve characterized in that at least one side of the relief valve is chamfered.