JPS63110777U

JPS63110777U -

Info

Publication number: JPS63110777U
Application number: JP1987002136U
Authority: JP
Priority date: 1987-01-09
Filing date: 1987-01-09
Publication date: 1988-07-16
Also published as: JPH0424224Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示すパイロツト操
作切換弁の断面図、第２図は本実施例のパイロツ
ト操作切換弁の部分分解斜視図、である。１……主弁、２Ａ，２Ｂ……電磁パイロツト弁
、９……スプール、１０，１１……ピストン、１
２，１３……接続部材、２１……弁本体、２２…
…電磁モータ、２３……第１弁体、２４……第２
弁体、３０……保持部材、３１，４３……スプリ
ング。 FIG. 1 is a sectional view of a pilot-operated switching valve showing an embodiment of the present invention, and FIG. 2 is a partially exploded perspective view of the pilot-operated switching valve of this embodiment. 1... Main valve, 2A, 2B... Solenoid pilot valve, 9... Spool, 10, 11... Piston, 1
2, 13... Connection member, 21... Valve body, 22...
...Electromagnetic motor, 23...First valve body, 24...Second
Valve body, 30... holding member, 31, 43... spring.

Claims

[Claims for Utility Model Registration] A piston provided on the other side of the piston that is pushed toward the other side when fluid is supplied to the first chamber formed on one side, and a piston that is pushed toward the other side when fluid is supplied to the first chamber formed on one side. A pilot operated switching valve comprising: a main valve including a main valve body that switches fluid; and an electromagnetic pilot valve that is integrally provided with the main valve and supplies and discharges fluid into the first chamber. The main valve includes a connecting member into which the piston is slidably inserted, and the electromagnetic pilot valve has a valve hole provided on one side of the piston and communicating with an inflow port on one side. a second valve seat having a second valve seat provided coaxially with the piston on the other side and having a valve hole exposed to the first chamber and communicating with the discharge port; and one side of the valve body. A second chamber is provided in the first chamber to form a second chamber that constantly communicates with the first chamber and in which the first valve seat is exposed, and is movable toward and away from the first valve seat, and is connected to the first valve seat by a first spring. an electromagnetic motor including a plunger that is urged toward and retracts from the first valve seat when energized; a first valve body seated on a first valve seat; a second spring which is installed inside the holding member and is movable in the axial direction and which is biased toward the second valve seat by a second spring having a smaller elastic force than the first spring; a valve body that penetrates the valve body and engages with the plunger or the first valve body at one end and engages the second valve body at the other end to control the movement of the first valve body; a transmission member that separates the second valve element from the second valve seat by a predetermined amount when the first valve element is seated on the first valve seat; Operation switching valve.