JPH01126402U - - Google Patents
Info
- Publication number
- JPH01126402U JPH01126402U JP2272788U JP2272788U JPH01126402U JP H01126402 U JPH01126402 U JP H01126402U JP 2272788 U JP2272788 U JP 2272788U JP 2272788 U JP2272788 U JP 2272788U JP H01126402 U JPH01126402 U JP H01126402U
- Authority
- JP
- Japan
- Prior art keywords
- poppet valve
- poppet
- port
- valve
- flow
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
- Fluid-Pressure Circuits (AREA)
Description
図は本考案による空気圧操作切換弁の一実施例
を示す全体構成図である。
符号の説明、１０…空気圧操作切換弁、１１…
弁本体、１２…第１ポペツト弁のポペツト、１５
…第２ポペツト弁のポペツト、１９…ピストン、
２０…液圧ポンプ（液圧供給源）、３０…液圧シ
リンダ、４０…リザーバ、Ｖ１…第１ポペツト弁
、Ｖ２…第２ポペツト弁、Ｐ…インレツトポート
、Ａ…負荷ポート、Ｒ…アウトレツトポート、Ｐ
ＬＴ…パイロツトポート。
The figure is an overall configuration diagram showing an embodiment of the pneumatically operated switching valve according to the present invention. Explanation of symbols, 10...Pneumatically operated switching valve, 11...
Valve body, 12...Poppet of first poppet valve, 15
...poppet of second poppet valve, 19...piston,
20... Hydraulic pump (hydraulic pressure supply source), 30... Hydraulic cylinder, 40... Reservoir, V1... First poppet valve, V2... Second poppet valve, P... Inlet port, A... Load port, R... Out Lettport, P.
LT...Pilot port.
Claims (1)
液圧シリンダに接続される負荷ポートへの流れを
許し反対方向には流れを阻止する第１ポペツト弁
と、この第１ポペツト弁の背部に同軸的に設けら
れて前記負荷ポートからリザーバに接続されるア
ウトレツトポートへの流れを阻止する第２ポペツ
ト弁と、この第２ポペツト弁に対向して同軸的に
設けられパイロツトポートに供給される空気圧に
よつて押動されたとき前記第２ポペツト弁を押し
開いて前記負荷ポートと前記アウトレツトポート
を連通させかつ前記第２ポペツト弁のポペツトを
前記第１ポペツト弁のポペツト背面に当接させる
ピストンを備えてなる空気圧操作切換弁。 a first poppet valve that allows flow from an inlet port connected to a hydraulic pressure supply source to a load port connected to a hydraulic cylinder and prevents flow in the opposite direction; A second poppet valve is provided on the pilot port to block the flow from the load port to the outlet port connected to the reservoir, and a second poppet valve is provided coaxially opposite the second poppet valve to prevent air pressure from being supplied to the pilot port. a piston that, when pushed, pushes open the second poppet valve, brings the load port and the outlet port into communication, and brings the poppet of the second poppet valve into contact with the back surface of the poppet of the first poppet valve; Equipped with a pneumatically operated switching valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2272788U JPH01126402U (en) | 1988-02-23 | 1988-02-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2272788U JPH01126402U (en) | 1988-02-23 | 1988-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01126402U true JPH01126402U (en) | 1989-08-29 |
Family
ID=31241098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2272788U Pending JPH01126402U (en) | 1988-02-23 | 1988-02-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01126402U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58170903A (en) * | 1982-03-30 | 1983-10-07 | Aioi Seiki Kk | Change-over valve of cylinder circuit for supply, locking and discharge of pressure oil |
-
1988
- 1988-02-23 JP JP2272788U patent/JPH01126402U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58170903A (en) * | 1982-03-30 | 1983-10-07 | Aioi Seiki Kk | Change-over valve of cylinder circuit for supply, locking and discharge of pressure oil |
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