JPS6167480U

JPS6167480U -

Info

Publication number: JPS6167480U
Application number: JP15277584U
Authority: JP
Priority date: 1984-10-09
Filing date: 1984-10-09
Publication date: 1986-05-09

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例を示すポート閉止
状態の断面図、第２図は同様のポート開放状態の
断面図、第３図は同様の主要部材の斜視図、第４
図は本考案の第２実施例を示す第１図相当図、第
５図は同様の第２図相当図、第６図は本考案の第
３実施例を示す第１図相当図、第７図は同様の第
２図相当図、第８図は従来の油圧システムにおけ
る油圧制御弁の取付状態を示す部分断面図、第９
図はマニホールドの第８図−線矢視図である
。１…油圧制御弁、２…マニホールド、３…圧力
油ポート、５…給油ポート、７…Ｏリング、２０
，３０，４０…油漏洩防止機構、２１，３１，４
１…弁座、２２…逆止弁、２４，３３…セツトば
ね、２５，４３…押込み金具、２５ａ，４３ａ…
連通口、３２…逆栓弁、４３…ボール型逆止弁。 Fig. 1 is a sectional view of the first embodiment of the present invention in a port closed state, Fig. 2 is a sectional view of the same port in an open state, Fig. 3 is a perspective view of the same main components, and Fig. 4
The drawings are equivalent to Fig. 1 showing the second embodiment of the present invention, Fig. 5 is a similar drawing equivalent to Fig. 2, Fig. 6 is a drawing equivalent to Fig. 1 showing the third embodiment of the invention, and Fig. The figure is a similar view corresponding to Figure 2, Figure 8 is a partial cross-sectional view showing the installation state of the hydraulic control valve in a conventional hydraulic system, and Figure 9 is a diagram corresponding to Figure 2.
The figure is a view of the manifold taken along the line in FIG. 8. 1...Hydraulic control valve, 2...Manifold, 3...Pressure oil port, 5...Oil supply port, 7...O ring, 20
, 30, 40...Oil leak prevention mechanism, 21, 31, 4
DESCRIPTION OF SYMBOLS 1... Valve seat, 22... Check valve, 24, 33... Set spring, 25, 43... Push metal fitting, 25a, 43a...
Communication port, 32...non-return valve, 43...ball-type check valve.

Claims

[Claims for Utility Model Registration] 1. A mounting member to which a hydraulic control valve is removably attached has a pressure oil hole and an oil supply hole connected to the hydraulic control valve, in which both holes have hydraulic pressure. A valve body that seats on the valve seat and closes each hole due to the flow of oil in each hole or spring pressure due to oil leakage between the control valve and the mounting member, and the movement of this valve body in the closing direction. A push-in fitting that slides and protrudes from the hydraulic control valve mounting surface of the mounting member, and also slides in the opposite direction when the hydraulic control valve is attached to the mounting member to forcibly remove the valve body from the valve seat. An oil leak prevention device for a hydraulic control valve, characterized in that: 2. The oil leak prevention device according to claim 1 of the Utility Model Registration Claim, characterized in that a valve seat and a check valve that is seated on and off the valve seat are disposed in the pressure oil hole and the oil supply hole. . 3. The oil leak prevention device according to claim 1 of the Utility Model Registration Claim, characterized in that a valve seat and a non-return valve that is seated on and off the valve seat are disposed in the pressure oil hole and the oil supply hole. . 4. Oil leakage according to claim 1 of the utility model registration claim, characterized in that a valve seat and a ball-type check valve that is seated on and off the valve seat are disposed in the pressure oil hole and the air supply hole. Prevention device.