JPH0444579U - - Google Patents
Info
- Publication number
- JPH0444579U JPH0444579U JP8753090U JP8753090U JPH0444579U JP H0444579 U JPH0444579 U JP H0444579U JP 8753090 U JP8753090 U JP 8753090U JP 8753090 U JP8753090 U JP 8753090U JP H0444579 U JPH0444579 U JP H0444579U
- Authority
- JP
- Japan
- Prior art keywords
- pilot
- pair
- exhaust
- air supply
- valve
- 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
- 230000005347 demagnetization Effects 0.000 claims 1
- 230000005284 excitation Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
Landscapes
- Fluid-Driven Valves (AREA)
- Multiple-Way Valves (AREA)
Description
図面は本考案を具体化した一実施例を示し、第
１図はパイロツト方向切り換え弁全体の側断面図
、第２図は第１図のＡ−Ａ線断面図、第３図は第
２図のＢ−Ｂ線断面図、第４図は第２図のＣ−Ｃ
線断面図、第５図は要部分解斜視図、第６図は上
側のソレノイドを励磁した状態を示す要部側断面
図、第７図は下側のソレノイドを励磁した状態を
示す要部側断面図である。
主弁……３、ピストン……３ａ，３ｂ、パイロ
ツト給気オリフイス……４ａ，４ｂ、パイロツト
排気オリフイス……４ｃ，４ｄ、ソレノイド……
６，７、プランジヤ……８，１１、パイロツト給
気弁体……８ａ，１１ａ、パイロツト排気弁体…
…１４ａ，１５ａ、パイロツト圧室……Ｒａ，Ｒ
ｂ、パイロツト給排気流路……Ｌａ，Ｌｂ、共通
排気室……Ｒｅ。
The drawings show an embodiment embodying the present invention; FIG. 1 is a side sectional view of the entire pilot direction switching valve, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG. Figure 4 is a cross-sectional view taken along line B-B of Figure 2.
Line sectional view, Figure 5 is an exploded perspective view of the main part, Figure 6 is a side sectional view of the main part showing the state in which the upper solenoid is energized, and Fig. 7 is the main part side showing the state in which the lower solenoid is energized. FIG. Main valve...3, Piston...3a, 3b, Pilot air supply orifice...4a, 4b, Pilot exhaust orifice...4c, 4d, Solenoid...
6, 7, Plunger...8, 11, Pilot air supply valve body...8a, 11a, Pilot exhaust valve body...
...14a, 15a, pilot pressure chamber...Ra, R
b. Pilot supply and exhaust flow path...La, Lb, common exhaust chamber...Re.
Claims (1)
，１１ａ及びパイロツト排気弁体１４ａ，１５ａ
の開閉制御により主弁３を複数位置に切換配置し
、この切換配置により流体の供給方向を切り換え
るパイロツト式方向切換弁において、ソレノイド
６，７の励消磁状態のいずれか一方の状態でパイ
ロツト給気オリフイス４ａ，４ｂを閉塞すると共
に、パイロツト排気オリフイス４ｃ，４ｄを開放
し、他方の状態でパイロツト給気オリフイス４ａ
，４ｂを閉塞すると共に、パイロツト排気オリフ
イス４ｃ，４ｄを開放する前記パイロツト給気弁
体８ａ，１１ａ及びパイロツト排気弁体１４ａ，
１５ａ、パイロツト給気弁体８ａ，１１ａ及びパ
イロツト排気弁体１４ａ，１５ａを駆動する一対
のプランジヤ８，９及び一対のソレノイド６，７
を主弁３の一側にて並設し、主弁３の左右一対の
ピストン３ａ，３ｂによつて区画形成される一対
のパイロツト圧室Ｒａ，Ｒｂにパイロツト給排気
流路Ｌａ，Ｌｂを介して接続する前記一対のパイ
ロツト排気オリフイス４ｃ，４ｄの下流側に共通
排気室Ｒｅを 設けたことを特徴とするパイロツ
ト式方向切換弁。 A pair of electromagnetically driven pilot air supply valve bodies 8a
, 11a and pilot exhaust valve bodies 14a, 15a
In a pilot type directional control valve in which the main valve 3 is switched between multiple positions by opening/closing control, and the direction of fluid supply is switched by this switching arrangement, the pilot supply air is switched on when either the solenoids 6 or 7 are in the excitation/demagnetization state. While the orifices 4a and 4b are closed, the pilot exhaust orifices 4c and 4d are opened, and the pilot air supply orifice 4a is closed in the other state.
, 4b and open the pilot exhaust orifices 4c, 4d.
15a, a pair of plungers 8, 9 and a pair of solenoids 6, 7 that drive the pilot air supply valve bodies 8a, 11a and the pilot exhaust valve bodies 14a, 15a.
are arranged side by side on one side of the main valve 3, and are connected to a pair of pilot pressure chambers Ra, Rb defined by a pair of left and right pistons 3a, 3b of the main valve 3 via pilot air supply/exhaust channels La, Lb. A pilot type directional control valve characterized in that a common exhaust chamber Re is provided downstream of the pair of pilot exhaust orifices 4c and 4d connected together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8753090U JPH0712785Y2 (en) | 1990-08-21 | 1990-08-21 | Pilot operated directional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8753090U JPH0712785Y2 (en) | 1990-08-21 | 1990-08-21 | Pilot operated directional valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0444579U true JPH0444579U (en) | 1992-04-15 |
| JPH0712785Y2 JPH0712785Y2 (en) | 1995-03-29 |
Family
ID=31819939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8753090U Expired - Lifetime JPH0712785Y2 (en) | 1990-08-21 | 1990-08-21 | Pilot operated directional valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0712785Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593103A (en) * | 2020-12-07 | 2022-06-07 | 株式会社日本碧士克 | switch valve |
-
1990
- 1990-08-21 JP JP8753090U patent/JPH0712785Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593103A (en) * | 2020-12-07 | 2022-06-07 | 株式会社日本碧士克 | switch valve |
| CN114593103B (en) * | 2020-12-07 | 2025-11-18 | 株式会社日本碧士克 | Switching valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0712785Y2 (en) | 1995-03-29 |
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