JPS63137179U - - Google Patents
Info
- Publication number
- JPS63137179U JPS63137179U JP2993487U JP2993487U JPS63137179U JP S63137179 U JPS63137179 U JP S63137179U JP 2993487 U JP2993487 U JP 2993487U JP 2993487 U JP2993487 U JP 2993487U JP S63137179 U JPS63137179 U JP S63137179U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- poppet
- check valve
- pilot check
- spring
- 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 2
Landscapes
- Preventing Unauthorised Actuation Of Valves (AREA)
- Check Valves (AREA)
Description
第１図は本考案に係るパイロツトチエツクバル
ブの縦断面図、第２図乃至第５図は同パイロツト
チエツクバルブの作用を示す油圧回路図、第６図
は従来のパイロツトチエツクバルブの縦断面図、
第７図は同従来のパイロツトチエツクバルブを組
み込んで成る油圧回路図である。
１……パイロツトチエツクバルブ、２……ボデ
イ、３……ピストン、３ａ……凹溝、４……ポペ
ツト、９……油路、１６……ロツク機構、１７…
…スプリング、１８……ボール。
FIG. 1 is a vertical sectional view of a pilot check valve according to the present invention, FIGS. 2 to 5 are hydraulic circuit diagrams showing the operation of the pilot check valve, and FIG. 6 is a vertical sectional view of a conventional pilot check valve.
FIG. 7 is a hydraulic circuit diagram incorporating the conventional pilot check valve. DESCRIPTION OF SYMBOLS 1... Pilot check valve, 2... Body, 3... Piston, 3a... Concave groove, 4... Poppet, 9... Oil passage, 16... Lock mechanism, 17...
...Spring, 18...Ball.
Claims (1)
同軸的に、且つ摺動自在に嵌装し、ポペツト４を
閉じ方向に付勢するとともに、ピストン３を油圧
にて駆動して上記ポペツト４を押し開くようにし
たパイロツトチエツクバルブにおいて、前記ピス
トン３がポペツト４を押し開いたときに該ピスト
ン３をその位置に保持するロツク機構１６を設け
たことを特徴とするパイロツトチエツクバルブ。 (2) 前記ロツク機構１６は、前記ボデイ２の油
路９内に縮装されたスプリング１７と、該スプリ
ング１７にて前記ピストン３の外周面側に常時付
勢され、該ピストン３外周面に形成された凹溝３
ａに選択的に係合するボール１８とで構成される
ことを特徴とする実用新案登録請求の範囲第(1)
項記載のパイロツトチエツクバルブ。[Claims for Utility Model Registration] (1) A piston 3 and a poppet 4 are coaxially and slidably fitted into the body 2, and the poppet 4 is biased in the closing direction, and the piston 3 is hydraulically applied. The pilot check valve is adapted to be driven to push open the poppet 4, and is characterized by being provided with a lock mechanism 16 for holding the piston 3 in that position when the piston 3 pushes the poppet 4 open. Pilot check valve. (2) The lock mechanism 16 has a spring 17 compressed in the oil passage 9 of the body 2, and is always urged toward the outer circumferential surface of the piston 3 by the spring 17. Formed groove 3
Utility model registration claim No. (1) characterized in that the ball 18 selectively engages with a.
Pilot check valve as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2993487U JPS63137179U (en) | 1987-03-03 | 1987-03-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2993487U JPS63137179U (en) | 1987-03-03 | 1987-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63137179U true JPS63137179U (en) | 1988-09-09 |
Family
ID=30834275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2993487U Pending JPS63137179U (en) | 1987-03-03 | 1987-03-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63137179U (en) |
-
1987
- 1987-03-03 JP JP2993487U patent/JPS63137179U/ja active Pending
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