CN202785460U - Thin hydraulic jack - Google Patents
Thin hydraulic jack Download PDFInfo
- Publication number
- CN202785460U CN202785460U CN 201220315884 CN201220315884U CN202785460U CN 202785460 U CN202785460 U CN 202785460U CN 201220315884 CN201220315884 CN 201220315884 CN 201220315884 U CN201220315884 U CN 201220315884U CN 202785460 U CN202785460 U CN 202785460U
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- piston rod
- cylinder
- hydraulic jack
- inner chamber
- spring
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- Expired - Fee Related
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Abstract
The utility model relates to a thin hydraulic jack which comprises a cylinder body, a cylinder cover and a piston rod. A high-pressure joint which is communicated with an inner cavity of the cylinder body is arranged on the lateral wall of the bottom of the cylinder body. The bottom of the piston rod is arranged in the inner cavity of the cylinder body in a sealed and sliding mode. The top of the piston rod penetrates through the cylinder cover and is connected with the cylinder cover in a sealed and sliding mode. The cylinder cover is arranged at the top of the cylinder body in a sealed mode. The piston rod is connected with the bottom of the inner cavity of the cylinder body through a spring. The thin hydraulic jack is simple in structure, convenient to use, capable of effectively avoiding impact of the retrieved piston rod, safe in use and long in service life.
Description
Technical field
The utility model relates to a kind of jack, is a kind of slim hydraulic jack specifically, is widely used in power plant, Ship Building and Repairing, building, mining, steel plant, oil field etc.
Background technology
In the prior art, increase accurately and lifting in very narrow space, its closed height and maximum form primary factor, therefore need to adopt slim hydraulic jack.Be the disclosed single-action super-thin hydraulic jack of 02150959.X such as the patent No., the push rod that uses the more piece piston rod to consist of, carry out that hydraulic pressure increases and lifting, but because jack is superthin structure, the inner chamber of cylinder block space is little, and hydraulic pressure is larger, the multi-level piston bar is when reclaiming successively in the indentation cylinder body, the moment indentation easily causes hard impact, damages piston rod and cylinder body, reduces jack service life.
Summary of the invention
In order to solve deficiency of the prior art, the purpose of this utility model provides a kind of simple in structure, and is easy to use, can effectively avoid piston rod to reclaim and impact, and uses safety, long slim hydraulic jack of life-span.
For achieving the above object, the technical solution adopted in the utility model is: a kind of slim hydraulic jack, comprise gray iron and piston rod, it is characterized in that: described cylinder base sidewall is provided with the high pressure connection that is communicated with inner chamber of cylinder block, the piston rod sealed bottom slides and is arranged at inner chamber of cylinder block, piston rod part sealing is slided and is connected on the cylinder cap, cylinder cap encapsulation cylinder body top, and described piston rod is connected through spring between bottom inner chamber of cylinder block.
Described piston rod bottom is provided with the spring plenum length that is communicated with inner chamber of cylinder block, and piston rod spring cavity top is through screw lock one spring joint, and on the spring joint linking springs, the spring lower end is connected in the inner chamber of cylinder block bottom through another spring joint of bolt-locking.
Be dynamically connected through the sealing member sealed sliding between described piston rod bottom and inner chamber of cylinder block sidewall.
Described piston rod part and cylinder cap are dynamically connected through the sealing member sealed sliding.
Be provided with the stay-supported type displacement sensor of band signal data line between described piston rod top and the cylinder body bottom.
Described outer wall of cylinder block is provided with handle.
Compared with prior art, the utility model has the advantages that: high pressure connection is to the inner chamber of cylinder block feed liquor, fluid pressure acts on the piston rod bottom, piston rod is ejected cylinder body act on and increase or the lifting object, when piston rod was retracted, the spring retraction that utilizes the piston rod bottom to connect was retracted piston rod, piston rod is retracted without impacting, it is stable to retract, and uses safety, is conducive to prolong jack service life.
The present invention is at jack cylinder intracoelomic cavity bottom and piston rod bottom linking springs, utilizes the spring design that resets, and its integral structure is simple, compact, easy to use, stable, safety, long service life.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is that the utility model uses the status architecture scheme drawing.
Among the figure: cylinder body 1, high pressure connection 2, handle 3, cylinder cap 4, piston rod 5, spring joint 6,61, screw 7, spring 8, upper sealing member 9, lower seal 10.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Shown in Fig. 1,2, a kind of slim hydraulic jack comprises cylinder body 1, high pressure connection 2, handle 3, cylinder cap 4, piston rod 5, spring joint 6, screw 7, spring 8, upper sealing member 9 and lower seal 10.Cylinder body 1 bottom sidewall is provided with the high pressure connection 2 that is communicated with inner chamber of cylinder block, cylinder body 1 outer wall is provided with handle 3, slide through lower seal 10 sealings and be arranged at cylinder body 1 inner chamber in piston rod 5 bottoms, slide through upper sealing member 9 sealings and be connected on the cylinder cap 4 in piston rod 5 tops, cylinder cap 4 encapsulation cylinder bodies 1 top, piston rod 5 bottoms are provided with the spring plenum length that is communicated with cylinder body 1 inner chamber, piston rod spring cavity top is through screw 7 locking spring joints 6, spring joint 6 linking springs 8 upper ends, spring 8 lower ends are connected in cylinder body 1 intracavity bottom through another spring joint 61 of screw lock; Be provided with the stay-supported type displacement sensor of band signal data line between piston rod top and the cylinder body bottom.
Claims (6)
1. slim hydraulic jack, comprise gray iron and piston rod, it is characterized in that: described cylinder base sidewall is provided with the high pressure connection that is communicated with inner chamber of cylinder block, the piston rod sealed bottom slides and is arranged at inner chamber of cylinder block, the piston rod part sealing is slided and is connected on the cylinder cap, cylinder cap encapsulation cylinder body top, described piston rod are connected through spring between bottom inner chamber of cylinder block.
2. a kind of slim hydraulic jack according to claim 1, it is characterized in that: described piston rod bottom is provided with the spring plenum length that is communicated with inner chamber of cylinder block, piston rod spring cavity top is through screw lock one spring joint, one spring joint linking springs upper end, the spring lower end is connected in the inner chamber of cylinder block bottom through another spring joint of bolt-locking.
3. a kind of slim hydraulic jack according to claim 1 is characterized in that: be dynamically connected through the sealing member sealed sliding between described piston rod bottom and inner chamber of cylinder block sidewall.
4. a kind of slim hydraulic jack according to claim 1, it is characterized in that: described piston rod part and cylinder cap are dynamically connected through the sealing member sealed sliding.
5. a kind of slim hydraulic jack according to claim 1 is characterized in that: the stay-supported type displacement sensor that is provided with the band signal data line between described piston rod top and the cylinder body bottom.
6. a kind of slim hydraulic jack according to claim 1, it is characterized in that: described outer wall of cylinder block is provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315884 CN202785460U (en) | 2012-06-29 | 2012-06-29 | Thin hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315884 CN202785460U (en) | 2012-06-29 | 2012-06-29 | Thin hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202785460U true CN202785460U (en) | 2013-03-13 |
Family
ID=47812768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220315884 Expired - Fee Related CN202785460U (en) | 2012-06-29 | 2012-06-29 | Thin hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202785460U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979456A (en) * | 2014-03-17 | 2014-08-13 | 淮南矿业(集团)有限责任公司 | Oil pressure jack and loading system |
-
2012
- 2012-06-29 CN CN 201220315884 patent/CN202785460U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979456A (en) * | 2014-03-17 | 2014-08-13 | 淮南矿业(集团)有限责任公司 | Oil pressure jack and loading system |
| CN103979456B (en) * | 2014-03-17 | 2016-05-04 | 淮南矿业(集团)有限责任公司 | Hydraulic jack and loading system |
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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: 20130313 Termination date: 20130629 |