JPS6443205U - - Google Patents
Info
- Publication number
- JPS6443205U JPS6443205U JP13864487U JP13864487U JPS6443205U JP S6443205 U JPS6443205 U JP S6443205U JP 13864487 U JP13864487 U JP 13864487U JP 13864487 U JP13864487 U JP 13864487U JP S6443205 U JPS6443205 U JP S6443205U
- Authority
- JP
- Japan
- Prior art keywords
- poppet
- seat portion
- actuator
- check
- valve body
- 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)
Description
図面第１図はこの考案の実施例を示す要部拡大
断面図、第２図は従来の装置の断面図である。
１……バルブ本体、２，３……アクチユエータ
ポート、Ｓ……シリンダ、７……スプール、８…
…ポンプ通路、９……タンク通路、１２……スリ
ーブ、１７……ピストン、２１……第１ポペツト
、２２……第２ポペツト、３０……可変オリフイ
スを構成するスリツト。
FIG. 1 is an enlarged sectional view of a main part showing an embodiment of this invention, and FIG. 2 is a sectional view of a conventional device. 1... Valve body, 2, 3... Actuator port, S... Cylinder, 7... Spool, 8...
... pump passage, 9 ... tank passage, 12 ... sleeve, 17 ... piston, 21 ... first poppet, 22 ... second poppet, 30 ... slit constituting a variable orifice.
Claims (1)
成し、このアクチユエータポートをシリンダに接
続し、しかも、このバルブ本体に内装したスプー
ルの切り換え方向に応じて、いずれか一方のアク
チユエータポートをポンプ通路に連通し、他方の
アクチユエータポートをタンク通路に連通し、か
つ、上記バルブ本体にスリーブを内装するととも
に、このスリーブには、シート部を形成するとと
もに、通常はこのシート部に圧接しつつ一方のア
クチユエータポートからシリンダへの流れを自由
流れとするチエツクポペツトを設ける一方、他方
のアクチユエータポート側の圧力作用で移動する
ピストンの押圧力で、上記チエツクポペツトを開
弁する構成にしたオペレートチエツク装置におい
て、上記チエツクポペツトを第１ポペツトと第２
ポペツトとに分割し、第１ポペツトを上記シート
部に圧接させるとともに、第２ポペツトを第１ポ
ペツトに形成したシート部に圧接させ、しかも、
上記第１ポペツトの周囲には流路及び固定オリフ
イスを形成するとともに、第２ポペツトの外周と
第１ポペツトとが相まつて可変オリフイスを構成
してなるオペレートチエツク装置。 A pair of actuator ports are formed in the valve body, and these actuator ports are connected to the cylinder, and either one of the actuator ports is connected to the pump depending on the switching direction of the spool built into the valve body. The actuator port communicates with the passage, the other actuator port communicates with the tank passage, and a sleeve is installed inside the valve body, and the sleeve is formed with a seat portion and is normally pressed into contact with the seat portion. At the same time, a check poppet is provided to allow free flow from one actuator port to the cylinder, and the check poppet is opened by the pressing force of a piston that moves due to the pressure action on the other actuator port side. In the operating check device, the check poppet is connected to the first poppet and the second poppet.
the first poppet is brought into pressure contact with the seat portion, and the second poppet is brought into pressure contact with the seat portion formed on the first poppet, and
An operating check device in which a flow path and a fixed orifice are formed around the first poppet, and the outer periphery of the second poppet and the first poppet together constitute a variable orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13864487U JPS6443205U (en) | 1987-09-10 | 1987-09-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13864487U JPS6443205U (en) | 1987-09-10 | 1987-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6443205U true JPS6443205U (en) | 1989-03-15 |
Family
ID=31401169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13864487U Pending JPS6443205U (en) | 1987-09-10 | 1987-09-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6443205U (en) |
-
1987
- 1987-09-10 JP JP13864487U patent/JPS6443205U/ja active Pending