JPH0480980U

JPH0480980U -

Info

Publication number: JPH0480980U
Application number: JP12408290U
Authority: JP
Priority date: 1990-11-26
Filing date: 1990-11-26
Publication date: 1992-07-14

Description

[Brief explanation of the drawing]

第１図は本考案の実施例１である切換弁を示す
断面図、第２図は本考案の実施例２である切換弁
を示す断面図、第３図は本考案の実施例３である
切換弁を示す断面図、第４図は本考案の実施例４
である切換弁を示す断面図である。１……主弁、２……手動操作装置、２ａ……第
１の手動操作装置、２ｂ……第２の手動操作装置
、３……パイロツト弁、３ａ……第１のパイロツ
ト弁、３ｂ……第２のパイロツト弁、４……主弁
本体、５……軸孔、５ａ……軸孔、６……パイロ
ツト通路、６ａ……パイロツト通路、６ｂ……パ
イロツト通路、６ｃ……パイロツト通路、７……
エンドカバー、７ａ……第１のカバー、８……ス
ペーサ、９……主軸、９ａ……小径部、９ｂ……
大径部、１０……シール、１０ａ……シール、１
１……パイロツト弁本体、１２……ポペツト側弁
座、１３……プラツパ側弁座、１４……固定コア
、１５……プランジヤ、１６……プランジヤピン
、１７……ポペツト側流体室、１８ａ……第１の
ピストン側流体室、１８ｂ……第２のピストン側
流体室、１９……ポペツト、２０……フラツパ、
２１ａ……第１のピストン、２１ｂ……第２のピ
ストン、２２……ソレノイド部、２３……ボビン
、２４……プランジヤばね、２５……ソレノイド
コイル、２６……ソレノイドカバー、２７……フ
ラツパ側流体室、２８……パイロツト排出ポート
、２９……フラツパばね、３０……操作軸、３１
……弁体、３２……操作部、３３……係止部、３
４……ポート、３５……フランジ部、３６……Ｏ
リング、３７……ばね、３８……ストツパピン、
３９……マニホールド、４０……ガスケツト、Ｐ
……入力ポート、Ａ……第１の出力ポート、Ｂ…
…第２の出力ポート、Ｒａ……第１の排出ポート
、Ｒｂ……第２の排出ポート。 Fig. 1 is a cross-sectional view showing a switching valve according to a first embodiment of the present invention, Fig. 2 is a cross-sectional view showing a switching valve according to a second embodiment of the present invention, and Fig. 3 is a cross-sectional view showing a switching valve according to a second embodiment of the present invention. A sectional view showing a switching valve, FIG. 4 is a fourth embodiment of the present invention.
FIG. 3 is a sectional view showing a switching valve. DESCRIPTION OF SYMBOLS 1... Main valve, 2... Manual operating device, 2a... First manual operating device, 2b... Second manual operating device, 3... Pilot valve, 3a... First pilot valve, 3b... ...Second pilot valve, 4...Main valve body, 5...Shaft hole, 5a...Shaft hole, 6...Pilot passage, 6a...Pilot passage, 6b...Pilot passage, 6c...Pilot passage, 7...
End cover, 7a...first cover, 8...spacer, 9...main shaft, 9a...small diameter portion, 9b...
Large diameter part, 10... Seal, 10a... Seal, 1
DESCRIPTION OF SYMBOLS 1...Pilot valve body, 12...Poppet side valve seat, 13...Platform side valve seat, 14...Fixed core, 15...Plunger, 16...Plunger pin, 17...Poppet side fluid chamber, 18a... ...First piston-side fluid chamber, 18b...Second piston-side fluid chamber, 19...Poppet, 20...Flapper,
21a...First piston, 21b...Second piston, 22...Solenoid section, 23...Bobbin, 24...Plunger spring, 25...Solenoid coil, 26...Solenoid cover, 27...Flapper side Fluid chamber, 28...Pilot discharge port, 29...Flapper spring, 30...Operation shaft, 31
... Valve body, 32 ... Operation section, 33 ... Locking section, 3
4...Port, 35...Flange part, 36...O
Ring, 37... Spring, 38... Stoppin,
39...Manifold, 40...Gasket, P
...Input port, A...First output port, B...
...Second output port, Ra...First discharge port, Rb...Second discharge port.

Claims

[Claims for Utility Model Registration] 1. A main valve that changes the flow direction of working fluid by moving the main shaft with a piston that slides based on pilot pressure, a pilot valve that switches the flow direction of pilot fluid, and a pilot valve that changes the flow direction of pilot fluid by manually controlling the flow of pilot fluid. 1. A switching valve comprising a manual operating device for switching directions, wherein the manual operating device includes a valve body that supplies pilot fluid to a piston-side fluid chamber by switching in three directions. 2. The switching valve according to claim 1, wherein the manual operation device is installed in the main valve. 3. The switching valve according to claim 1, wherein the manual operating device is installed in a manifold.