JPS58149662U

JPS58149662U - relief valve

Info

Publication number: JPS58149662U
Application number: JP4747582U
Authority: JP
Inventors: 水戸　昭夫; 林　喜與志; 健太郎田中; 康雄下村
Original assignee: 株式会社トキメック
Priority date: 1982-04-01
Filing date: 1982-04-01
Publication date: 1983-10-07
Also published as: JPS6144047Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のリリーフ弁の一例を示した断面図、第２
図は本考案の一実施例を示した断面図、第３図は本考案
の他の実施例を示した断面図である。１０・・・・・・弁本体、１１・・・・・・隔壁、１２
・・・・・・流入口、１３，２７．２８・・・・・・液
室、１４・・・・・・ノズル、１５・・・・・・フラッ
パ、１６・・・・・・リテーナ、１７・・・・・・リニ
ヤベアリング、１８・・・・・・大径ピストン、１９・
・・・・・ダンピング用液室、２０．　２３．　３５．
　３６・・・・・・バネ座、２１・・・・・田ツクナツ
ト、２２・・・・・・調整ネジ、２４・・・・・・スプ
リング、２５・・・・・・流出口、２６・・・・・・内
部流路、２９．３０・・・・・・連通路、３１・・・・
・・ダンピング用絞り、３２・・・・・・絞り、３３・
・・・・・エアー抜き孔、３４・・・・・・プラグ、３
７・・・・・・リニヤ形ボールベアリング。Figure 1 is a sectional view showing an example of a conventional relief valve;
The figure is a cross-sectional view showing one embodiment of the present invention, and FIG. 3 is a cross-sectional view showing another embodiment of the present invention. 10... Valve body, 11... Bulkhead, 12
...Inflow port, 13, 27.28 ... Liquid chamber, 14 ... Nozzle, 15 ... Flapper, 16 ... Retainer, 17...Linear bearing, 18...Large diameter piston, 19.
...damping liquid chamber, 20. 23. 35.
36...Spring seat, 21...Tatsuknut, 22...Adjustment screw, 24...Spring, 25...Outlet, 26... ...Internal flow path, 29.30...Communication path, 31...
...Damping aperture, 32...Aperture, 33.
...Air vent hole, 34...Plug, 3
7...Linear ball bearing.

Claims

[Scope of utility model registration request]

(1) A nozzle that communicates with the inflow port and opens into the valve chamber,
a rod-shaped flapper member having a large-diameter piston portion whose shaft end faces the nozzle and is slidably supported in the axial direction by a bearing member; a spring that presses the flapper member toward the nozzle; and the six flan members. 1. A relief valve comprising: a liquid chamber formed between a large-diameter piston portion and a valve body; and a damping throttle that communicates the liquid chamber with a flow path on an outlet side.

(2) The IJ IJ-F valve according to claim 1, wherein the bearing member is a linear ball bearing having a built-in steel ball.

(3) The IJ IJ-F valve according to claim 1, which is a registered utility model, wherein a throttle is provided in the outflow path for applying back pressure to the hydraulic pressure chamber to bleed air.

(4) The relief mechanism according to claim 1, wherein the spring has an adjustment mechanism that adjusts the spring load acting on the flapper member using an adjustment member.

(5) Utility model registration Claims 1 or 4 in which at least one of the contact portions between the spring and the flan member or the adjustment member has a pivot contact structure.
IJ IJ-F valve described in Section 1. .