JPS6318685U

JPS6318685U -

Info

Publication number: JPS6318685U
Application number: JP11330386U
Authority: JP
Priority date: 1986-07-23
Filing date: 1986-07-23
Publication date: 1988-02-06

Description

[Brief explanation of the drawing]

第１図は本考案による電磁弁の弁機構の実施例
を示す縦断面図、第２図は同弁機構の作用を示す
縦断面図、第３図は従来の電磁弁の全容を示す断
面図、第４図は第３図の―断面図、第５図は
従来の弁機構の縦断面図、第６図はソレノイドの
吸引力とストロークとの関係を示す特性図である
。図において、１は一次側、２は主弁孔、Ａは弁
室、３は主弁座、４ｍは主弁、４ｐはパイロツト
弁、４１は主弁体、５は弁棒、２０は主弁閉止バ
ネ、２１はパイロツト弁孔、２２はパイロツト弁
座、２３はパイロツト弁ガイド枠、２４は弁棒ガ
イド孔、２５はパイロツト弁体、２６は穴、２７
はパイロツト弁閉止バネをそれぞれ示す。 Fig. 1 is a longitudinal sectional view showing an embodiment of the valve mechanism of the solenoid valve according to the present invention, Fig. 2 is a longitudinal sectional view showing the operation of the same valve mechanism, and Fig. 3 is a sectional view showing the entire structure of a conventional electromagnetic valve. , FIG. 4 is a cross-sectional view of FIG. 3, FIG. 5 is a vertical cross-sectional view of a conventional valve mechanism, and FIG. 6 is a characteristic diagram showing the relationship between the suction force and stroke of a solenoid. In the figure, 1 is the primary side, 2 is the main valve hole, A is the valve chamber, 3 is the main valve seat, 4m is the main valve, 4p is the pilot valve, 41 is the main valve body, 5 is the valve stem, 20 is the main valve A closing spring, 21 is a pilot valve hole, 22 is a pilot valve seat, 23 is a pilot valve guide frame, 24 is a valve stem guide hole, 25 is a pilot valve body, 26 is a hole, 27
indicate the pilot valve closing spring.

Claims

[Claim for Utility Model Registration] An electromagnetic valve with a structure in which the valve chamber of the solenoid valve communicates with the primary side and the valve hole communicates with the secondary side, and the primary pressure acts to press the valve body against the valve seat when the valve is closed. In a valve, there is a hole in the center of the main valve body that is pressed against the main valve seat by spring pressure.
A pilot valve hole is drilled and a pilot valve seat is formed around it.A pilot valve guide frame is provided in the main valve body, and a valve stem driven by a solenoid is inserted into the guide hole formed in the center of the pilot valve guide frame. A pilot valve element is attached to the valve stem in the pilot valve guide frame, and the pilot valve guide frame has a hole that communicates the valve chamber side and the pilot valve hole side. A gap is formed in the pilot valve guide frame so that the pilot valve body can move in the axial direction of the valve stem by the amount of the pilot valve stroke, and a gap is formed between the pilot valve guide frame and the pilot valve body. A valve mechanism for a solenoid valve, characterized in that a pilot valve closing spring is inserted between the valve mechanisms.