JPH0254983U - - Google Patents
Info
- Publication number
- JPH0254983U JPH0254983U JP13469988U JP13469988U JPH0254983U JP H0254983 U JPH0254983 U JP H0254983U JP 13469988 U JP13469988 U JP 13469988U JP 13469988 U JP13469988 U JP 13469988U JP H0254983 U JPH0254983 U JP H0254983U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- case
- back pressure
- throttles
- bored
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Fluid-Driven Valves (AREA)
- Fluid-Pressure Circuits (AREA)
- Magnetically Actuated Valves (AREA)
Description
第１図は本考案のカートリツジ式電磁バルブを
用いた作業機のコントロールバルブ断面図。第２
図は本考案のカートリツジ式電磁バルブ断面図。
第３図は同じく油圧回路。第４図は絞り部斜視図
である。
Ａ……第１開閉弁、Ｂ……第２開閉弁、Ｄ・Ｅ
……絞り、１……電磁ソレノイド、２……ケース
、２ａ……作用ポート、２ｂ……タンクポート、
２ｃ……流路、２ｄ……ドレン油路、３……弁体
、３ａ……バネ室、１０……バネ、２０……バル
ブケース。
FIG. 1 is a cross-sectional view of a control valve for a working machine using the cartridge-type electromagnetic valve of the present invention. Second
The figure is a cross-sectional view of the cartridge-type solenoid valve of the present invention.
Figure 3 shows the same hydraulic circuit. FIG. 4 is a perspective view of the aperture section. A...First on-off valve, B...Second on-off valve, D/E
...Aperture, 1...Electromagnetic solenoid, 2...Case, 2a...Action port, 2b...Tank port,
2c...Flow path, 2d...Drain oil path, 3...Valve body, 3a...Spring chamber, 10...Spring, 20...Valve case.
Claims (1)
ルブケース２０内に出し入れ自由な筒形カートリ
ツジにおいて、ケース２内前方には弁体３を内装
してケース２側方に穿たれた油圧作用ポート２ａ
と、前端に穿たれタンクポート２ｂとを、そのバ
ネ室３ａ内にかかる背圧を逃がすことで連通する
第１開閉弁Ａを、後方には前記電磁ソレノイド１
の励磁よつて第１開閉弁Ａの背圧をドレン油路２
ｄへ連通又は遮断する第２開閉弁Ｂを配し、第１
、第２開閉弁Ａ・Ｂの間にバネ１０・１５に対し
て向かい合わせにした絞りＤ・Ｅを介装支持し、
該絞りＤ・Ｅ通過後の背圧を第２開閉弁Ｂの油圧
作用ポートへ導く流路２ｃをケース２外周と前記
バルブケース２０の間に形成したことを特徴とす
る油圧制御装置。 An electromagnetic solenoid 1 is attached to the rear end of the case 2, and a cylindrical cartridge that can be freely inserted into and taken out of the valve case 20 has a valve body 3 installed at the front of the case 2, and a hydraulic port 2a bored on the side of the case 2.
A first on-off valve A is bored at the front end and communicates with the tank port 2b by releasing the back pressure applied to the spring chamber 3a, and the electromagnetic solenoid 1 is located at the rear.
The back pressure of the first on-off valve A is drained into the drain oil path 2 by
A second on-off valve B that communicates with or shuts off the first
, interposed and supported throttles D and E facing the springs 10 and 15 between the second on-off valves A and B;
A hydraulic control device characterized in that a flow path 2c is formed between the outer periphery of the case 2 and the valve case 20 for guiding the back pressure after passing through the throttles D and E to the hydraulic port of the second on-off valve B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988134699U JPH0438135Y2 (en) | 1988-10-14 | 1988-10-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988134699U JPH0438135Y2 (en) | 1988-10-14 | 1988-10-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0254983U true JPH0254983U (en) | 1990-04-20 |
| JPH0438135Y2 JPH0438135Y2 (en) | 1992-09-07 |
Family
ID=31393689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988134699U Expired JPH0438135Y2 (en) | 1988-10-14 | 1988-10-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0438135Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6122161A (en) * | 1984-07-06 | 1986-01-30 | 株式会社東芝 | Air conditioner |
-
1988
- 1988-10-14 JP JP1988134699U patent/JPH0438135Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6122161A (en) * | 1984-07-06 | 1986-01-30 | 株式会社東芝 | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0438135Y2 (en) | 1992-09-07 |