CN201746277U - Hydraulic jack with manual gear pump - Google Patents
Hydraulic jack with manual gear pump Download PDFInfo
- Publication number
- CN201746277U CN201746277U CN2010202013075U CN201020201307U CN201746277U CN 201746277 U CN201746277 U CN 201746277U CN 2010202013075 U CN2010202013075 U CN 2010202013075U CN 201020201307 U CN201020201307 U CN 201020201307U CN 201746277 U CN201746277 U CN 201746277U
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- CN
- China
- Prior art keywords
- cylinder body
- hydraulic jack
- gear pump
- liquid
- pipe
- 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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Abstract
The utility model relates to a hydraulic jack with a manual gear pump and used under a coal mine. At present, the special hydraulic jack used for the installation and the movement of underground equipment is not yet produced. The hydraulic jack comprises a cylinder body, a piston rod, a support block, a piston, a spring, a guide sleeve, the gear pump, a speed changing gear, a crank, a liquid absorption pipe, a liquid filling pipe, a liquid returning pipe, a check valve, a shutoff valve and a base. The hydraulic jack is characterized in that the manual gear pump is connected with the cylinder body; the liquid absorption pipe is connected with the upper cavity of the cylinder body; and the liquid filling pipe is connected with the lower cavity of the cylinder body. When the gear pump is driven manually to work, hydraulic oil enters the lower cavity of the cylinder body through the liquid absorption pipe, the liquid filling pipe and the check valve, thus leading the piston rod to extend out. When the work is finished, the shutoff valve is switched on, and due to the action of the check valve, the hydraulic oil in the lower cavity of the cylinder body only can only return into the cylinder body through the liquid returning pipe, thus completing work circulation.
Description
Technical field: the utility model relates to the hydraulic jack of the band manual gear pump that uses under a kind of coal mine.
Background technology: known to the author, also do not specialize at present the colliery underground equipment install, when moving, employed hydraulic jack.Usually replace with general hydraulic jack.The plunger pump that this kind jack uses leverage to operate its bottom carries out work.Because the underworkings space is limited, gives and use and operation is made troubles, even can not operate.
Summary of the invention: the utility model provides a kind of hydraulic jack with the manual gear pump.It is made up of cylinder body, piston rod, anchor plate, piston, spring, orienting sleeve, gear type pump, variable gear, crank, pipette, filling tube, liquid back pipe, check valve, shut-off valve, base.It is characterized in that the manual gear pump is connected with cylinder body, pipette is connected with the cylinder body epicoele, and filling tube is connected with the cylinder body cavity of resorption.When the manual driven crank rotated a pair of variable gear, the gear type pump that is connected with ring gear then sucked the hydraulic oil in the cylinder body epicoele by pipette, and by filling tube, check valve enters the cylinder body cavity of resorption.Under the effect of pressure oil.The piston against the force of the spring stretches out piston rod, finishes the work requirements of lifting or passing weight.When the needs piston rod bounces back, open shut-off valve, piston rod moves down under the effect of spring.Because filling tube is equipped with check valve, the pressure oil of cylinder body cavity of resorption can only be through shut-off valve, and liquid back pipe returns the cylinder body epicoele.Close shut-off valve then, finish a working cycle at this point.
Owing to adopted manual gear pump, variable gear.The operational space of this hydraulic jack is greatly reduced, adapted to the demand under the coal mine, good through trial effect.
Description of drawings: accompanying drawing is the utility model generalized section.
The specific embodiment: as shown in drawings, piston (18) is connected with piston rod (19) lower end, and is contained in the cylinder body (17), and spring (20) is enclosed within on the piston rod (19).Orienting sleeve (23) is connected with piston rod (19) running-fit.And be connected with cylinder body (17) upper end.Anchor plate (24) flexibly connects with piston rod (19) upper end.Gear type pump (3) is connected with cylinder body (17).Pipette (2) lower end is connected with gear type pump (3), and the upper end is connected with the liquid outlet (1) of cylinder body epicoele (21).Gear (5) is connected with the axle drive shaft of gear type pump (3).Gear (6) is contained on the turning cylinder (7), and meshes with gear (5).Turning cylinder (7) left side is connected with crank (8), the hole of the right and oil pump end cap (4) bottom, and running-fit connects.Check valve (10) is installed on the filling tube (9), and filling tube (9) upper end is connected with gear type pump (3), and the lower end is connected with the inlet (11) of cylinder body cavity of resorption (13).Base (12) is connected with cylinder body (17).Shut-off valve (15) is installed on the liquid back pipe (16), and liquid back pipe (16) upper end is connected with the liquid return hole (22) of cylinder body epicoele (21), and the lower end is connected with the liquid outlet (14) of cylinder body cavity of resorption (13), and cylinder body (17) is made with hard aluminium alloy.Change the diameter and the length of cylinder body (17), can be made into different size and model, to adapt to demand widely.
Claims (1)
- FF-1. with the hydraulic jack of manual gear pump, it is made up of cylinder body, piston rod, anchor plate, piston, spring, orienting sleeve, gear type pump, variable gear, crank, pipette, filling tube, liquid back pipe, check valve, shut-off valve, base, it is characterized in that, the manual gear pump is connected with cylinder body, pipette is connected with the cylinder body epicoele, and filling tube is connected with the cylinder body cavity of resorption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202013075U CN201746277U (en) | 2010-05-09 | 2010-05-09 | Hydraulic jack with manual gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202013075U CN201746277U (en) | 2010-05-09 | 2010-05-09 | Hydraulic jack with manual gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201746277U true CN201746277U (en) | 2011-02-16 |
Family
ID=43580954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202013075U Expired - Fee Related CN201746277U (en) | 2010-05-09 | 2010-05-09 | Hydraulic jack with manual gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201746277U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849652A (en) * | 2012-09-29 | 2013-01-02 | 吴白莹 | Lifting tray |
| CN105621305A (en) * | 2016-03-03 | 2016-06-01 | 郑州四维矿业机械有限责任公司 | Piston and jack using piston |
| CN109437040A (en) * | 2018-12-27 | 2019-03-08 | 宁波市奉化区南方机械制造有限公司 | A kind of gear-type hydraulic jack |
| EP4375228A1 (en) * | 2022-11-08 | 2024-05-29 | GL GmbH Metall- und Werkstatttechnik | Lifting device |
-
2010
- 2010-05-09 CN CN2010202013075U patent/CN201746277U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849652A (en) * | 2012-09-29 | 2013-01-02 | 吴白莹 | Lifting tray |
| CN105621305A (en) * | 2016-03-03 | 2016-06-01 | 郑州四维矿业机械有限责任公司 | Piston and jack using piston |
| CN105621305B (en) * | 2016-03-03 | 2018-09-28 | 郑州四维矿业机械有限责任公司 | A kind of piston and the jack using the piston |
| CN109437040A (en) * | 2018-12-27 | 2019-03-08 | 宁波市奉化区南方机械制造有限公司 | A kind of gear-type hydraulic jack |
| EP4375228A1 (en) * | 2022-11-08 | 2024-05-29 | GL GmbH Metall- und Werkstatttechnik | Lifting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20110509 |