JPS581086U - Flat jack lift limit valve structure - Google Patents
Flat jack lift limit valve structureInfo
- Publication number
- JPS581086U JPS581086U JP9238381U JP9238381U JPS581086U JP S581086 U JPS581086 U JP S581086U JP 9238381 U JP9238381 U JP 9238381U JP 9238381 U JP9238381 U JP 9238381U JP S581086 U JPS581086 U JP S581086U
- Authority
- JP
- Japan
- Prior art keywords
- spool
- coil spring
- circular hole
- silk
- recess
- 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
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、構造物の構成を示す説明図、第２図は、従来
のフラットジヤツキを示す一部縦断正面図、第３図は、
本考案のフラットジヤツキを示す一部縦断正面図、第４
図は、第３図における揚程制限弁構造の詳細を示すＡ部
拡大図、第５図は、本考案のフラットジヤツキの作動状
態を示す一部縦断正面図ζ第６図は、第５図における揚
程制限弁構造の詳細を示すＡ′部拡大図、第７図は、本
考案のグラ２ントジヤツキの揚程制限弁構造を示す斜視
図、第８図は、他の実施例のフラットジヤツキを示す一
部縦断正面図である。
１．０：フラットジヤツキ、１１：基体、１２：支圧板
、１３：絹状凹部、１４：円孔、１５：注入孔、１７：
ガイドピン、１８：コイルバネ、１９ニスプール、２０
：フランジ部、２３：キャップ、２４：環線部、２９：
揚程押限弁、３３：流体。Fig. 1 is an explanatory diagram showing the structure of the structure, Fig. 2 is a partially longitudinal front view showing a conventional flat jack, and Fig. 3 is an explanatory diagram showing the structure of the structure.
A partially longitudinal front view showing the flat jack of the present invention, No. 4
The figure is an enlarged view of part A showing the details of the lift limiting valve structure in Fig. 3, and Fig. 5 is a partially longitudinal front view showing the operating state of the flat jack of the present invention. FIG. 7 is an enlarged view of part A' showing details of the lift limiting valve structure of the present invention, FIG. It is a partially longitudinal front view shown. 1.0: flat jack, 11: base, 12: bearing plate, 13: silk-like recess, 14: circular hole, 15: injection hole, 17:
Guide pin, 18: Coil spring, 19 Varnish spool, 20
: flange part, 23: cap, 24: ring wire part, 29:
Lift limit valve, 33: Fluid.
Claims (1)
に配され、該絹状凹部内に注入される流体により上昇せ
しめられる支圧板とより構成されるフラットジヤツキに
おいて、基体の絹状凹部底面に該基体外表面と注入孔で
連らなる円孔を形成せしめ、該円孔の底面にガイドピン
を配設し、該ガイドピンにコイルバネと該コイルバネで
上方に付勢される一端にフランジ部が形成された円筒状
のスプールを該スプールのフランジ部をコイルバネ側に
位置せしめて嵌装し、さらに該円孔尖端部にスプールの
フランジ部は当接し、かつ円筒部分に出入可能に形成さ
れバ環縁部を有するキャップをコイルバネおよびスプー
ルを円孔内に保持するように固着せしめてなり、流体の
注入によって上昇する支圧板にスプールをコイルバネの
弾性で追従させ、所定量の揚程で該スプールのフランジ
部をキャップの環線部に当接せしめて、流体の流路を遮
断するように構成したことを特徴とするフラットジヤツ
キの揚程制限弁構造。A flat jack consisting of a base having a silk-like recess formed on its upper surface and a bearing plate disposed within the silk-like recess of the base and raised by a fluid injected into the silk-like recess. A circular hole connected to the outer surface of the base body and the injection hole is formed on the bottom surface of the silk-like recess, and a guide pin is disposed on the bottom surface of the circular hole, and the guide pin is biased upward by a coil spring and the coil spring. A cylindrical spool with a flange formed at one end is fitted with the flange of the spool positioned on the coil spring side, and the flange of the spool is in contact with the tip of the circular hole and can be moved in and out of the cylindrical part. The coil spring and the spool are fixed in a circular hole so as to hold the coil spring and the spool in the circular hole, and the elasticity of the coil spring causes the spool to follow the bearing pressure plate which is raised by the injection of fluid, and a predetermined lift is achieved. A lift limiting valve structure for a flat jack, characterized in that the flange portion of the spool is brought into contact with the ring line portion of the cap to block a fluid flow path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9238381U JPS581086U (en) | 1981-06-24 | 1981-06-24 | Flat jack lift limit valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9238381U JPS581086U (en) | 1981-06-24 | 1981-06-24 | Flat jack lift limit valve structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS581086U true JPS581086U (en) | 1983-01-06 |
| JPS613917Y2 JPS613917Y2 (en) | 1986-02-06 |
Family
ID=33307346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9238381U Granted JPS581086U (en) | 1981-06-24 | 1981-06-24 | Flat jack lift limit valve structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS581086U (en) |
-
1981
- 1981-06-24 JP JP9238381U patent/JPS581086U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS613917Y2 (en) | 1986-02-06 |
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