CN201212367Y - Big stiffness compression spring jacket - Google Patents
Big stiffness compression spring jacket Download PDFInfo
- Publication number
- CN201212367Y CN201212367Y CNU2008203013554U CN200820301355U CN201212367Y CN 201212367 Y CN201212367 Y CN 201212367Y CN U2008203013554 U CNU2008203013554 U CN U2008203013554U CN 200820301355 U CN200820301355 U CN 200820301355U CN 201212367 Y CN201212367 Y CN 201212367Y
- Authority
- CN
- China
- Prior art keywords
- sleeve
- spring
- compression spring
- interior
- cover
- 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 discloses a great-rigidity compression spring sleeve, the structure comprises an inner sleeve (1), an outer sleeve (2) and a central sleeve (3), an inward inner circular bead (4) and an outward outer circular bead (5) are respectively arranged at both ends of the central sleeve (3), the inner circular bead (4) props up the end part of the inner sleeve (1), the outer circular bead props up the end part of the outer sleeve (2). When the spring sleeve is under compressing force, the inner sleeve and the outer sleeve are at a compressed state, and the central state is at a pulled state, thus the result is equal to the addition of actions of two compression springs and an extension spring, and each spring adopts elastic modulus of the material as the spring rigidity. Compared with the prior art, the utility model has the advantages of simple structure, great rigidity and small volume of the spring, easy fabrication, low cost, and the like.
Description
Technical field
The utility model relates to a kind of big rigidity compression spring housing, belongs to the bumper jar technical field.
Background technology
The downhole tool that each oil drilling is used, its design space all are the cylinders of hollow, and its external diameter and internal diameter all are to limit size, and the shared diameter space of element should be as much as possible little, otherwise other circuit elements design difficulties, this be many weeks.When downhole tool needs the compression spring of big rigidity, it at present all is the flexible member dish spring that adopts the rigidity maximum, yet, in the downhole tool of some function complexity, it is still bigger that the dish spring takies the radial space size, influence the design of other function element, made the overall performance of downhole tool be in low state.
Summary of the invention
The purpose of this utility model is: a kind of big rigidity compression spring housing is provided, has advantages such as rigidity large volume simple and compact for structure, spring is little, making is with low cost easily, to overcome the deficiencies in the prior art.
The utility model is achieved in that structure comprises interior cover, overcoat and middle cover, is provided with inside and outside respectively interior shoulder and outer shoulder at middle cover two ends, and interior shoulder withstands the interior end of overlapping, and outer shoulder withstands the end of overcoat.
Above-mentioned big rigidity compression spring housing, the thickness H of cover in the width D of interior shoulder is equal to or less than.
Above-mentioned big rigidity compression spring housing, the width F of outer shoulder is equal to or less than overcoat end portion thickness L.
Above-mentioned big rigidity compression spring housing, the wall thickness of interior cover, overcoat and middle cover is between 2.2～3.5mm.
The utility model is compressed the masterpiece time spent, and interior cover and overcoat are pressured states, and middle cover is a tension state, and its result is equal to the stacks of 2 compressions springs and extension spring effects, and each spring all be modulus of elasticity with material is the rigidity of spring.Compare with prior art, the utlity model has advantages such as rigidity large volume simple in structure, spring is little, making is with low cost easily.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
Cover, the interior shoulder of 4-, the outer shoulder of 5-among the interior cover of being labeled as in the accompanying drawing: 1-, 2-overcoat, the 3-.
The specific embodiment
Embodiment of the present utility model: as shown in Figure 1, cover 1, overcoat 2 and middle cover 3 in its structure comprises, middle cover 3 two ends produce respectively inside and outside interior shoulder 4 with outside shoulder 5, during installation, interior cover 1, overcoat 2 and middle cover 3 are put successively, the end of cover 1 in shoulder 4 withstands in making, the end that outer shoulder withstands overcoat 2 gets final product.For fixing-stable, the thickness H of cover 1 in the width D of interior shoulder 4 is equal to or less than, the width F of outer shoulder 5 is equal to or less than overcoat 2 end portion thickness L.Through test, the wall thickness of interior cover 1, overcoat 2 and middle cover 3 is preferably between 2.2～3.5mm.
During use, the utility model one end is touched mechanical component install, other end positioning instant can.
Claims (4)
- [claim 1] a kind of big rigidity compression spring housing, it is characterized in that: structure comprises interior cover (1), overcoat (2) and middle cover (3), middle cover (3) two ends be provided with respectively inside and outside interior shoulder (4) and outside shoulder (5), interior shoulder (4) withstands the end of interior cover (1), and outer shoulder withstands the end of overcoat (2).
- [claim 2] big rigidity compression spring housing according to claim 1, it is characterized in that: the width D of interior shoulder (4) is equal to or less than the thickness H of interior cover (1).
- [claim 3] big rigidity compression spring housing according to claim 1, it is characterized in that: the width F of outer shoulder (5) is equal to or less than overcoat (2) end portion thickness L.
- [claim 4] big rigidity compression spring housing according to claim 1, it is characterized in that: the wall thickness of interior cover (1), overcoat (2) and middle cover (3) is between 2.2～3.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203013554U CN201212367Y (en) | 2008-06-30 | 2008-06-30 | Big stiffness compression spring jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203013554U CN201212367Y (en) | 2008-06-30 | 2008-06-30 | Big stiffness compression spring jacket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201212367Y true CN201212367Y (en) | 2009-03-25 |
Family
ID=40496536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008203013554U Expired - Fee Related CN201212367Y (en) | 2008-06-30 | 2008-06-30 | Big stiffness compression spring jacket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201212367Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533330A (en) * | 2014-12-24 | 2015-04-22 | 重庆望江工业有限公司 | Mechanical jar knocker |
-
2008
- 2008-06-30 CN CNU2008203013554U patent/CN201212367Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533330A (en) * | 2014-12-24 | 2015-04-22 | 重庆望江工业有限公司 | Mechanical jar knocker |
| CN104533330B (en) * | 2014-12-24 | 2017-12-22 | 重庆望江工业有限公司 | A kind of mechanical drilling jar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUIZHOU GAOFENG PETROLEUM MACHINERY CO., LTD. Free format text: FORMER OWNER: GUIZHOU GAOFENG PETROLEUM MACHINERY LIMITED LIABILITY COMPANY Effective date: 20090828 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090828 Address after: Guizhou Guizhou Pingba Pingba County, P.O. Box 32, postal code: 561108 Patentee after: Guizhou Gaofeng Petroleum Machinery Co., Ltd. Address before: Guizhou Guizhou Pingba Pingba County, P.O. Box 32, postal code: 561108 Patentee before: Guizhou Gaofeng Petroleum Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090325 Termination date: 20160630 |