JPH0232111U - - Google Patents
Info
- Publication number
- JPH0232111U JPH0232111U JP10942088U JP10942088U JPH0232111U JP H0232111 U JPH0232111 U JP H0232111U JP 10942088 U JP10942088 U JP 10942088U JP 10942088 U JP10942088 U JP 10942088U JP H0232111 U JPH0232111 U JP H0232111U
- Authority
- JP
- Japan
- Prior art keywords
- flow path
- pressure
- valve body
- pressure chamber
- path
- 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
- 239000012530 fluid Substances 0.000 claims 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Safety Valves (AREA)
- Multiple-Way Valves (AREA)
- Control Of Fluid Pressure (AREA)
Description
第１図は本考案の一実施例を示す圧力制御弁の
断面図、第２図は本考案に用いられるウエイトバ
ランス装置の油圧回路図である。
Ｐ……供給流路、Ａ……負荷流路、Ｅ……排出
流路、７……弁体、１２，１３……圧力室、１５
……制御路、１６……連通路、１５Ａ，１６Ａ…
…絞り、２１，２２……押圧手段、２３，２４…
…操作弁体、２５，２６……排出口、２７，２８
……押圧ばね。
FIG. 1 is a sectional view of a pressure control valve showing an embodiment of the present invention, and FIG. 2 is a hydraulic circuit diagram of a weight balance device used in the present invention. P... Supply channel, A... Load channel, E... Discharge channel, 7... Valve body, 12, 13... Pressure chamber, 15
...Control path, 16...Communication path, 15A, 16A...
...Aperture, 21, 22...Press means, 23, 24...
...Operation valve body, 25, 26...Discharge port, 27, 28
...pressing spring.
Claims (1)
弁孔に摺動自在に嵌合する弁体を設け、弁体の一
端面に絞りを介して制御路から制御流体を導入さ
せた第１圧力室を設け、弁体の他端面に絞りを介
して連通路から負荷流路の圧力流体を導入させた
第２圧力室を設け、負荷流路が供給流路または排
出流路に適宜連通して常に一定圧力となるよう各
圧力室と排出口とを連通遮断して弁体の移動を自
在とする操作弁体を設け、操作弁体の一方に圧力
室と排出口とを閉方向に押圧する押圧ばねを設け
ると共に、他方には制御路からの圧力と連通路か
らの圧力差に基因して圧力室と排出口とを開方向
に押圧する押圧制御手段を設けて成る圧力制御弁
。 A first valve body is provided that is slidably fitted into a valve hole through which a supply flow path, a load flow path, and a discharge flow path are opened, and a control fluid is introduced from a control path through a throttle on one end surface of the valve body. A pressure chamber is provided, and a second pressure chamber is provided on the other end surface of the valve body into which the pressure fluid of the load flow path is introduced from the communication path through a restriction, and the load flow path is communicated with the supply flow path or the discharge flow path as appropriate. An operating valve body is provided that allows the valve body to move freely by blocking communication between each pressure chamber and the discharge port so that a constant pressure is maintained at all times, and one side of the operation valve body presses the pressure chamber and the discharge port in the closing direction. A pressure control valve is provided with a pressure spring that presses the pressure chamber and the discharge port in the opening direction based on a pressure difference between the pressure from the control path and the communication path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10942088U JPH0426893Y2 (en) | 1988-08-19 | 1988-08-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10942088U JPH0426893Y2 (en) | 1988-08-19 | 1988-08-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0232111U true JPH0232111U (en) | 1990-02-28 |
| JPH0426893Y2 JPH0426893Y2 (en) | 1992-06-29 |
Family
ID=31345645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10942088U Expired JPH0426893Y2 (en) | 1988-08-19 | 1988-08-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0426893Y2 (en) |
-
1988
- 1988-08-19 JP JP10942088U patent/JPH0426893Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0426893Y2 (en) | 1992-06-29 |