JPH0484973U - - Google Patents
Info
- Publication number
- JPH0484973U JPH0484973U JP12789190U JP12789190U JPH0484973U JP H0484973 U JPH0484973 U JP H0484973U JP 12789190 U JP12789190 U JP 12789190U JP 12789190 U JP12789190 U JP 12789190U JP H0484973 U JPH0484973 U JP H0484973U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- fluid
- valve
- case
- cylinder block
- 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
- 239000012530 fluid Substances 0.000 claims description 15
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Landscapes
- Multiple-Way Valves (AREA)
- Fluid-Driven Valves (AREA)
Description
第１図は、本考案による高圧流体切換弁の実施
例を示す図である。第２図は、前記高圧流体を切
換弁を駆動する駆動回路の実施例を示す油圧回路
図である。
１……シリンダブロツク、１ａ，１ｃ……シリ
ンダブロツクのピストン部、１ｂ……シリンダブ
ロツクの弁、２……油圧ピストン（左）、３……
油圧ピストン（右）、４……シリンダーボデイ（
左）、５……バルブボデイ（左）、６……バルブ
ボデイ（右）、７……シリンダーボデイ（右）、
８……シリンダカバー、９……バルブシート、１
０……サポートリング、１１，１２，１３……六
角穴つきボルト、１４……Ｏリング、１５，１６
……パツキング、１７……Ｏリング、１８……バ
ツクアツプリング、１９，２０，２１，２２……
ケース内空間、２４……ポート（Ｐ）、２５……
ポート（Ｒ）、２６……ポート（Ａ）、２７……
油圧ポート（左）、２８……油圧ポート（右）、
２９，３０……空気抜き孔、３１……定容量形油
圧ポンプ、３２……油タンク、３３……フイルタ
、３４……油圧用常時閉圧力制御弁、３５……４
ポート３位置切換弁、３６，３７……パイロツト
操作逆止め弁。
FIG. 1 is a diagram showing an embodiment of a high-pressure fluid switching valve according to the present invention. FIG. 2 is a hydraulic circuit diagram showing an embodiment of a drive circuit for driving the switching valve using the high-pressure fluid. 1...Cylinder block, 1a, 1c...Piston part of cylinder block, 1b...Valve of cylinder block, 2...Hydraulic piston (left), 3...
Hydraulic piston (right), 4...Cylinder body (
left), 5... Valve body (left), 6... Valve body (right), 7... Cylinder body (right),
8...Cylinder cover, 9...Valve seat, 1
0... Support ring, 11, 12, 13... Hexagon socket head bolt, 14... O ring, 15, 16
...Packing, 17...O-ring, 18...Backup spring, 19,20,21,22...
Space inside the case, 24... Port (P), 25...
Port (R), 26... Port (A), 27...
Hydraulic port (left), 28...Hydraulic port (right),
29, 30...Air vent hole, 31...Constant displacement hydraulic pump, 32...Oil tank, 33...Filter, 34...Hydraulic normally closed pressure control valve, 35...4
Port 3 position switching valve, 36, 37...pilot operated check valve.
Claims (1)
り切り換える高圧流体切換弁であつて、 ケースと、 前記ケース内に収容され両端に設けられた第１
および第２のピストン部、中央に弁をもつシリン
ダブロツクと、 前記弁に対応すべく前記ケース内空間に設けら
れているバルブシートと、 前記シリンダブロツクの軸線上前記両ピストン
に接触可能にその外方にそれぞれ設けられている
第１および第２の流体圧ピストンと、 前記各流体圧ピストンとケース内壁で形成され
るケース内空間をそれぞれ前記制御用流体圧源に
接続する第１および第２の制御流体用ポートと、 前記シリンダブロツクの第２のピストン部と前
記バルブシート間に形成される空間に設けられい
ずれかが高圧流体源に接続される高圧流体用の第
１および第２の高圧流体ポートと、 前記シリンダブロツクの第１のピストン部と前
記バルブシート間に形成される空間に接続された
高圧流体用の第３のポートから構成した高圧流体
切換弁。[Claims for Utility Model Registration] A high-pressure fluid switching valve that switches the flow direction of high-pressure fluid using another control fluid pressure, comprising: a case; and first valves housed in the case and provided at both ends.
and a second piston part, a cylinder block having a valve in the center, a valve seat provided in the case interior space to correspond to the valve, and an outer part on the axis of the cylinder block so as to be able to contact both the pistons. first and second fluid pressure pistons provided on one side, respectively; and first and second fluid pressure pistons each connecting a case inner space formed by each of the fluid pressure pistons and the inner wall of the case to the control fluid pressure source. a control fluid port; first and second high-pressure fluids for high-pressure fluid provided in a space formed between the second piston portion of the cylinder block and the valve seat, one of which is connected to a high-pressure fluid source; A high-pressure fluid switching valve comprising: a port; and a third port for high-pressure fluid connected to a space formed between the first piston portion of the cylinder block and the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12789190U JPH0484973U (en) | 1990-11-30 | 1990-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12789190U JPH0484973U (en) | 1990-11-30 | 1990-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0484973U true JPH0484973U (en) | 1992-07-23 |
Family
ID=31875375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12789190U Pending JPH0484973U (en) | 1990-11-30 | 1990-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0484973U (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5335440B1 (en) * | 1976-09-28 | 1978-09-27 | ||
| JPS5686269A (en) * | 1979-12-13 | 1981-07-13 | Agency Of Ind Science & Technol | Liquid pressure change-over valve |
| JPS61192975A (en) * | 1985-02-21 | 1986-08-27 | ロンザ リミテツド | Cutoff device, particularly, one for high-pressure liquid, and use of said device |
| JPS6238584A (en) * | 1985-08-12 | 1987-02-19 | Matsushita Electric Ind Co Ltd | Electronic still camera |
| JPS62261583A (en) * | 1986-05-08 | 1987-11-13 | Honda Motor Co Ltd | Car body conveyance method and device for automobile assembly |
-
1990
- 1990-11-30 JP JP12789190U patent/JPH0484973U/ja active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5335440B1 (en) * | 1976-09-28 | 1978-09-27 | ||
| JPS5686269A (en) * | 1979-12-13 | 1981-07-13 | Agency Of Ind Science & Technol | Liquid pressure change-over valve |
| JPS61192975A (en) * | 1985-02-21 | 1986-08-27 | ロンザ リミテツド | Cutoff device, particularly, one for high-pressure liquid, and use of said device |
| JPS6238584A (en) * | 1985-08-12 | 1987-02-19 | Matsushita Electric Ind Co Ltd | Electronic still camera |
| JPS62261583A (en) * | 1986-05-08 | 1987-11-13 | Honda Motor Co Ltd | Car body conveyance method and device for automobile assembly |
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