JPH0442969U

JPH0442969U -

Info

Publication number: JPH0442969U
Application number: JP8419190U
Authority: JP
Priority date: 1990-08-08
Filing date: 1990-08-08
Publication date: 1992-04-13
Also published as: JPH0449418Y2

Description

[Brief explanation of the drawing]

第１図はこの考案の１実施例を示す縦断面図、
第２図は従来の圧力制御弁の１例を示す縦断面図
、第３図はこの考案の他の実施例を示す縦断面図
ある。３０……圧力制御弁、３１……本体、３２……
弁座体、３３……押圧ばね、３４……主弁、３５
……弁ばね、３６……蓋、４３，４３ａ……小間
隙、４５……前端面、４６……座、４７……弁孔
、４８……弁座、４９……弁室、５０……通路、
５３……ばね受、５４……調整ねじ。 FIG. 1 is a longitudinal sectional view showing one embodiment of this invention.
FIG. 2 is a longitudinal sectional view showing one example of a conventional pressure control valve, and FIG. 3 is a longitudinal sectional view showing another embodiment of this invention. 30...Pressure control valve, 31...Main body, 32...
Valve seat body, 33...Press spring, 34...Main valve, 35
... Valve spring, 36 ... Lid, 43, 43a ... Small gap, 45 ... Front end surface, 46 ... Seat, 47 ... Valve hole, 48 ... Valve seat, 49 ... Valve chamber, 50 ... aisle,
53...Spring holder, 54...Adjustment screw.

Claims

[Scope of Claim for Utility Model Registration] A through hole communicating with the load passage is opened in the tank passage of the directional control valve, a seat shaped like a valve seat is formed on the edge of the opening, and the front end is pressed into contact with the seat in an oil-tight manner. A valve seat body having a valve hole opened in the through hole is provided on the front end surface of the main valve, and a main valve pressed from behind by a valve spring is provided on the valve seat formed at the rear end of the valve hole. A pressure control valve configured to open and close between the through hole and the tank passage by a main valve opening and closing the valve hole, wherein the pressure control valve is formed in a cylindrical shape and penetrates the tank passage wall from the outside toward the opening. A main body with a tip fixed to the wall thereof is provided, and the valve seat body is accommodated in the front end of the main body so as to be movable forward and backward with a small gap between it and the outer periphery, and the valve seat body is pressed from behind. A pressure spring is provided,
A pressure control valve characterized in that a lid is provided which is coupled to the rear end of the main body, supports the rear end of the pressure spring, and supports the rear end of the valve spring in an adjustable manner.