JPS59101065U - counter balance valve - Google Patents
counter balance valveInfo
- Publication number
- JPS59101065U JPS59101065U JP19734482U JP19734482U JPS59101065U JP S59101065 U JPS59101065 U JP S59101065U JP 19734482 U JP19734482 U JP 19734482U JP 19734482 U JP19734482 U JP 19734482U JP S59101065 U JPS59101065 U JP S59101065U
- Authority
- JP
- Japan
- Prior art keywords
- spool
- pilot
- piston
- virofft
- 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.)
- Pending
Links
Landscapes
- Safety Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図面第１図は従来の断面図、第２図はこの考案の実施例
を示す断面図、第３図は他の実施例とし ゛ての方向
切換弁の記号図である。
１４゜４６・・・方向切換弁、１９・・・スプール、２
１・・・圧力室、２２・・・パイロットピストン、２９
−・・・制御絞り部、３２・・・パイロットチェッ
ク、３９・・・パイロット室、４０・・・パイロット操
作シリンダ。Figure 1 is a sectional view of a conventional valve, Figure 2 is a sectional view showing an embodiment of this invention, and Figure 3 is a symbolic diagram of a directional control valve as another embodiment. 14゜46... Directional switching valve, 19... Spool, 2
1... Pressure chamber, 22... Pilot piston, 29
-...Control throttle section, 32...Pilot check, 39...Pilot chamber, 40...Pilot operation cylinder.
Claims (1)
し、その制御絞り部の開度に応じてカウンターフローに
絞り抵抗を付与するカウンターバランス弁において、カ
ウンターフロー制御をすべく方向切換弁を切換えたとき
、その方向切換弁、と連動して動作し、パイ【１ツト室
にパイロット圧を供給するパイロット操作ノリンダと、
このパイロット圧に応じて移動し、上記スプールを押す
バイロフトピストンと、上記スプール内に設け、パイロ
ットピストンがスプールを押す以前にそのパイロットピ
ストンの移動にともな−って開弁シ、バイロフトピスト
ンと反対側に設けた圧力室をタンクに連通させるパイロ
ットチェックとを備えたカウンターバラス弁。[Scope of Claim for Utility Model Registration] A counterbalance valve in which a control constriction formed in a spool opens at the same time as a spool, and applies constriction resistance to the counterflow according to the opening degree of the control constriction, which performs all counterflow control. When the directional switching valve is switched, a pilot-operated norinda that operates in conjunction with the directional switching valve and supplies pilot pressure to the pipe chamber,
A virofft piston that moves in response to this pilot pressure and pushes the spool, and a virofft piston that is provided within the spool and opens a valve as the pilot piston moves before the pilot piston pushes the spool, opposite to the virofft piston. A counterbalance valve equipped with a pilot check that connects the pressure chamber on the side to the tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19734482U JPS59101065U (en) | 1982-12-27 | 1982-12-27 | counter balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19734482U JPS59101065U (en) | 1982-12-27 | 1982-12-27 | counter balance valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59101065U true JPS59101065U (en) | 1984-07-07 |
Family
ID=30422680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19734482U Pending JPS59101065U (en) | 1982-12-27 | 1982-12-27 | counter balance valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59101065U (en) |
-
1982
- 1982-12-27 JP JP19734482U patent/JPS59101065U/en active Pending
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