CN2721598Y - Universal hydraulic jack - Google Patents
Universal hydraulic jack Download PDFInfo
- Publication number
- CN2721598Y CN2721598Y CN 200420051218 CN200420051218U CN2721598Y CN 2721598 Y CN2721598 Y CN 2721598Y CN 200420051218 CN200420051218 CN 200420051218 CN 200420051218 U CN200420051218 U CN 200420051218U CN 2721598 Y CN2721598 Y CN 2721598Y
- Authority
- CN
- China
- Prior art keywords
- oil
- jack
- hydraulic jack
- universal hydraulic
- utility
- 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.)
- Expired - Fee Related
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- Check Valves (AREA)
Abstract
The utility model provides a universal hydraulic jack. The technical proposal of the utility model is that a seal oil capsule is arranged inside of the jack; the seal oil capsule is communicated with a high-pressure chamber and a manual plunger fuel pump via an oil circuit and a nonreturn valve. The entire hydraulic system is under the sealing condition of inner circulation. The jack can conduct normal work at any angle and can not happen oil leakage.
Description
Technical field:
The utility model belongs to a kind of machine tool, is specially a kind of jack.
Background technology:
Existing hydraulic jack can only stand to use, recumbency or swing to use and will leakage of oil lose efficacy.The use of therefore existing jack has very big limitation, usually can not bring into play its due function, brings inconvenience to the user.
Summary of the invention:
The purpose of this utility model is that jack can be stood to use, can tilt again, laterally, swing to use, become various directions and place the universal jack that can both use.
The technical solution of the utility model is: oil sac is set in jack, and oil sac communicates with high pressure chest and manual plunger formula oil pump by oil circuit, check valve, forms an internal-circulation type closing oil path system.
The utility model has the advantages that: whole hydraulic efficiency pressure system is in the internal-circulation type sealing state constantly, no matter is in which kind of state in this device busy process, as upright, tilt, lie low or stand upside down, all can normally use and can leakage of oil not lose efficacy.
Description of drawings:
Accompanying drawing 1 is universal jack structure schematic diagram.
1 is shell, and 2 is master cylinder tube (high pressure chest), and 3 is piston, and 4 is oil sac, and 5 is deflation hole, and 6 is manual plunger formula oil pump, and 7 is oil circuit, and 8 is hydraulic oil, and 9 is unloading one-way valve, and 10 is base.
The specific embodiment:
1 embodiment illustrates that the utility model structural principle is as follows in conjunction with the accompanying drawings:
Universal jack is made up of shell 1, master cylinder tube (high pressure chest) 2, manual plunger formula oil pump 6 and base 10, and 2 in shell 1 and master cylinder tube are provided with oil sac 4, establish oil circuit 7 in the base 10, establish unloading one-way valve 9 on the oil circuit 7.But oil sac 4 usefulness oil proof rubbers are made into the annular seal space of inside and outside corrugated elastic telescopic.Oil sac 4 is by oil circuit 7, check valve 9 and master cylinder tube 2 bottoms and manual plunger formula oil pump 6 UNICOMs.
Whole hydraulic efficiency pressure system is in the internal-circulation type sealing state, so no matter be in which kind of attitude (upright, tilt, lie low or stand upside down) in this device busy process, all can normally use, and can leakage of oil not lose efficacy.
Claims (2)
1. universal hydraulic jack, form by master cylinder tube, piston, manual plunger formula oil pump, oil circuit, check valve, it is characterized in that: oil sac is set in jack, oil sac communicates with high pressure chest and manual plunger formula oil pump by oil circuit, check valve, forms the closing oil path system of an internal-circulation type.
2. universal hydraulic jack as claimed in claim 1 is characterized in that: but described oil sac is the annular seal space of inside and outside corrugated elastic telescopic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420051218 CN2721598Y (en) | 2004-05-01 | 2004-05-01 | Universal hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420051218 CN2721598Y (en) | 2004-05-01 | 2004-05-01 | Universal hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2721598Y true CN2721598Y (en) | 2005-08-31 |
Family
ID=35011974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420051218 Expired - Fee Related CN2721598Y (en) | 2004-05-01 | 2004-05-01 | Universal hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2721598Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817484A (en) * | 2010-04-07 | 2010-09-01 | 朱传铭 | Universal manual hydraulic jack |
| CN103852212A (en) * | 2013-08-24 | 2014-06-11 | 路崧 | Rolling oil sac seal oil cylinder hydraulic force standard machine |
| CN109372823A (en) * | 2018-12-29 | 2019-02-22 | 王斌 | Internal-circulation type hydraulically extensible cylinder |
-
2004
- 2004-05-01 CN CN 200420051218 patent/CN2721598Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817484A (en) * | 2010-04-07 | 2010-09-01 | 朱传铭 | Universal manual hydraulic jack |
| CN101817484B (en) * | 2010-04-07 | 2012-10-03 | 朱传铭 | Universal manual hydraulic jack |
| CN103852212A (en) * | 2013-08-24 | 2014-06-11 | 路崧 | Rolling oil sac seal oil cylinder hydraulic force standard machine |
| CN103852212B (en) * | 2013-08-24 | 2016-02-24 | 吉林大学 | Rolling oil sac sealed cylinder Hydraulic Standard Force Meter |
| CN109372823A (en) * | 2018-12-29 | 2019-02-22 | 王斌 | Internal-circulation type hydraulically extensible cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |