JPS6222373U

JPS6222373U -

Info

Publication number: JPS6222373U
Application number: JP11327785U
Authority: JP
Priority date: 1985-07-24
Filing date: 1985-07-24
Publication date: 1987-02-10
Also published as: JPH0319662Y2

Description

[Brief explanation of the drawing]

第１図は本考案による電磁切換弁の縦断正面図
、第２図は第１図の―線に沿う部分破断側面
図である。符号の説明、１０……電磁切換弁、１１……弁
本体、１１ａ……弁孔、１１ｂ……弁座、１１ｃ
……流入口、１１ｄ……流出口、１２……第１ポ
ペツト、１２ａ……連通孔、１４……ダイヤフラ
ム、１６……カバー、１７……バルブプランジヤ
、１８……ソレノイド、１９……第１スプリング
、２０……シリンダ、２０ａ……内孔、２０ｂ…
…貫通孔、２０ｃ……通孔、２３……第２スプリ
ング、２４……第２ポペツト、２５……ピストン
、２６……第３スプリング、２７……ロツド、Ｓ
……絞り通路、Ｒ１……第１室、Ｒ２……第２室
、Ｒ３……第３室。 FIG. 1 is a longitudinal sectional front view of the electromagnetic switching valve according to the present invention, and FIG. 2 is a partially cutaway side view taken along the line - - in FIG. Explanation of symbols, 10... Solenoid switching valve, 11... Valve body, 11a... Valve hole, 11b... Valve seat, 11c
...Inflow port, 11d...Outflow port, 12...First poppet, 12a...Communication hole, 14...Diaphragm, 16...Cover, 17...Valve plunger, 18...Solenoid, 19...First Spring, 20...Cylinder, 20a...Inner hole, 20b...
...Through hole, 20c...Through hole, 23...Second spring, 24...Second poppet, 25...Piston, 26...Third spring, 27...Rod, S
...Aperture passage, R1...First chamber, R2...Second chamber, R3...Third chamber.

Claims

[Scope of utility model registration request]

A valve body is provided with an inlet and an outlet that communicate with each other through a valve seat having a valve hole, and a cover that is disposed opposite to the valve seat and is assembled to the valve body makes the outer peripheral edge airtight. a diaphragm which is sandwiched between the valve seat and forms a first chamber communicating with the inflow port on the valve seat side and a second chamber communicating with the first chamber through a throttle passage on the other side; a first poppet having a communication hole disposed and assembled to the diaphragm and communicating the second chamber and the valve hole; and a first poppet disposed opposite to the opening of the communication hole on the second chamber side and supported by a first spring. The second chamber side opening is closed and the first poppet is urged to be seated on the valve seat, and is moved against the action of the first spring by energizing a solenoid provided on one side. a valve plunger; and a cylinder having an inner hole coaxial with the valve hole, the cylinder being airtightly assembled to the valve body and having an inner end protruding into an outflow passage communicating the valve hole and the outlet. , the valve is assembled airtightly and slidably in the axial direction in the valve hole, and is biased toward the inner end of the cylinder by a second spring and in contact with the inner end of the cylinder. a second poppet that blocks communication between the hole and the outlet; and a second poppet that is assembled in the inner hole of the cylinder so as to be airtight and slidable in the axial direction and that passes through the through hole at the inner end of the inner hole and connects the outlet. A piston that forms a third chamber communicating with the third chamber and is biased toward the third chamber by a third spring that can be adjusted from the outside, and an airtight through hole coaxial with the inner hole provided in the cylinder. a rod that is slidably assembled in the axial direction and engages the second poppet at one end and the piston at the other end to transmit movement of the piston to the second poppet; 2nd port air solenoid switching valve with pressure reduction adjustment mechanism.