CN201314426Y - Connecting structure of metal sheath lock catch for automobile oil pipe - Google Patents
Connecting structure of metal sheath lock catch for automobile oil pipe Download PDFInfo
- Publication number
- CN201314426Y CN201314426Y CNU200820211405XU CN200820211405U CN201314426Y CN 201314426 Y CN201314426 Y CN 201314426Y CN U200820211405X U CNU200820211405X U CN U200820211405XU CN 200820211405 U CN200820211405 U CN 200820211405U CN 201314426 Y CN201314426 Y CN 201314426Y
- Authority
- CN
- China
- Prior art keywords
- metallic sheath
- steel pipe
- retaining ring
- annular
- annular retaining
- 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
Links
- 239000002184 metal Substances 0.000 title claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 230000008602 contraction Effects 0.000 claims abstract description 9
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010622 cold drawing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model provides a connecting structure of a metal sheath lock catch for an automobile oil pipe. An annular retaining ring and an annular bulge are directly formed at the end of a metal steel pipe; a rubber pipe is sleeved at the section of the annular bulge; a metal sheath is arranged at the outer part of the rubber pipe sleeved at the section of the annular bulge; and a contraction part is arranged on the metal sheath corresponding to the part between the annular retaining ring of the metal steel pipe and the annular bulge. The annular retaining ring is arranged on the metal steel pipe; an annular retaining edge is arranged at the end part of the metal sheath adjacent to the annular retaining ring; and the metal sheath is formed in a pressing manner. Compared with the structure of a spring chip, due to the contraction part added on the metal sheath corresponding to the part between the annular retaining ring of the metal steel pipe and the annular bulge, the connecting pulling-out force of the connecting structure is largely increased, so that the connecting reliability is enhanced greatly, thereby adapting to higher pressure and larger pulling-out force.
Description
Technical field:
The utility model relates to auto parts and components, a kind of specifically automobile oil pipe metallic sheath snap close linkage structure.
Background technique:
At present at home, by a kind of structure of forming by metal steel pipe, spring clip, sebific duct, be directly at metallic steel pipe end moulding one annular retaining ring and an annular protrusion, the annular protrusion section is with sebific duct, and there is spring clip the sebific duct outside that is enclosed within the annular protrusion section.This is simple in structure, and is easy to assembly.But some vehicle oil pipe requirement pressure is higher, pulling-out force is bigger, and the scope of existing structure pressure applicatory, pulling-out force is less relatively.
Summary of the invention:
A kind of automobile oil pipe metallic sheath snap close linkage structure of the utility model design is to improve the structure of coming out on the basis of above-mentioned existing structure, guaranteeing on the oil tube connection structure basis simple, easy to assembly, solve pressure-bearing height, pulling-out force height, good airproof performance simultaneously, stay-in-grade problem.
The technical solution adopted in the utility model is:
A kind of automobile oil pipe metallic sheath snap close linkage structure, include metal steel pipe, metallic sheath, sebific duct, it is characterized in that: the metallic steel pipe end forms annular protrusion, form annular retaining ring near annular protrusion one end on the metal steel pipe, glue pipe socket is outside the annular protrusion of metal steel pipe, the sebific duct front end is near annular retaining ring, and the sebific duct outer locking is with metallic sheath, and the front end of metallic sheath has the annular retaining along being against annular retaining ring one side.
Described a kind of automobile oil pipe metallic sheath snap close linkage structure is characterized in that: the part on the metallic sheath in the middle of the annular retaining ring of corresponding metal steel pipe and the annular protrusion has one or more contraction flow region, and does not shrink the outer end of metallic sheath, is horn mouth.
Described a kind of automobile oil pipe metallic sheath snap close linkage structure, it is characterized in that: described metallic sheath is a punching stretch forming, the contraction flow region on the metallic sheath is that special purpose machine tool is radially locked formation at the metallic sheath outer surface; The annular retaining ring of metal steel pipe and annular protrusion are by the shaping die extrusion modling.
Advantage of the present utility model:
Placement of the present utility model, compare with the spring clip structure, owing to increased metallic sheath, there is contraction flow region at the anterior place of the annular protrusion of corresponding metal steel pipe on the metallic sheath, the pulling-out force increase of its connection is bigger, the reliability of connection is strengthened greatly, and sealing strengthens, thereby steady quality can adapt to higher pressure and pulling-out force.Compare with domestic other linkage structures, not only simple in structure, easy to assembly, and can in metallic sheath, connect reliably, realized steady quality, connect reliable advantage.
Description of drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model cross-sectional view.
Embodiment:
Referring to Fig. 1, Fig. 2:
A kind of automobile oil pipe metallic sheath snap close linkage structure is made up of metal steel pipe 1, metallic sheath 2, sebific duct 3.Annular retaining ring 4 on the metal steel pipe, annular retaining ring 4 is with sebific duct 3 to steel tube head, be enclosed within annular retaining ring 4 and be with metallic sheath 2 outside the sebific duct 3 of steel tube head, the annular protrusion 8 anterior places of corresponding metal steel pipe have contraction flow region 6, metallic sheath 2 left ends the retaining of going in ring to be arranged along 5 on the metallic sheath 2.The annular retaining ring 4 of metal steel pipe 1 and annular protrusion 8 structures are by the shaping die extrusion modling; Metallic sheath 2 is by low-carbon (LC) cold drawing punching stretch forming.
Placement: metal steel pipe 1 puts metallic sheath 2, inserts (metallic sheath 2 entangles on the sebific duct 3, and metal steel pipe 1 inserts in the sebific duct 3) in the sebific duct 3, radially lock at metallic sheath 2 outer surfaces by special purpose machine tool, form contraction flow region, so, then steel pipe and sebific duct link together very securely.
Claims (3)
1, a kind of automobile oil pipe metallic sheath snap close linkage structure, include metal steel pipe, metallic sheath, sebific duct, it is characterized in that: the metallic steel pipe end forms annular protrusion, form annular retaining ring near annular protrusion one end on the metal steel pipe, glue pipe socket is outside the annular protrusion of metal steel pipe, the sebific duct front end is near annular retaining ring, and the sebific duct outer locking is with metallic sheath, and the front end of metallic sheath has the annular retaining along being against annular retaining ring one side.
2, a kind of automobile oil pipe metallic sheath snap close linkage structure according to claim 1, it is characterized in that: the part on the metallic sheath in the middle of the annular retaining ring of corresponding metal steel pipe and the annular protrusion has one or more contraction flow region, does not shrink the outer end of metallic sheath, is horn mouth.
3, a kind of automobile oil pipe metallic sheath snap close linkage structure according to claim 1, it is characterized in that: described metallic sheath is a punching stretch forming, the contraction flow region on the metallic sheath is that special purpose machine tool is radially locked formation at the metallic sheath outer surface; The annular retaining ring of metal steel pipe and annular protrusion are by the shaping die extrusion modling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820211405XU CN201314426Y (en) | 2008-12-19 | 2008-12-19 | Connecting structure of metal sheath lock catch for automobile oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820211405XU CN201314426Y (en) | 2008-12-19 | 2008-12-19 | Connecting structure of metal sheath lock catch for automobile oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201314426Y true CN201314426Y (en) | 2009-09-23 |
Family
ID=41126220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820211405XU Expired - Fee Related CN201314426Y (en) | 2008-12-19 | 2008-12-19 | Connecting structure of metal sheath lock catch for automobile oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201314426Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410417A (en) * | 2010-09-21 | 2012-04-11 | 上海汽车空调配件有限公司 | Rubber pipe riveting structure for air conditioner pipeline |
-
2008
- 2008-12-19 CN CNU200820211405XU patent/CN201314426Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410417A (en) * | 2010-09-21 | 2012-04-11 | 上海汽车空调配件有限公司 | Rubber pipe riveting structure for air conditioner pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090923 Termination date: 20141219 |
|
| EXPY | Termination of patent right or utility model |