CN201326853Y - Latching structure of vehicle oil suction pipe - Google Patents
Latching structure of vehicle oil suction pipe Download PDFInfo
- Publication number
- CN201326853Y CN201326853Y CNU2008202113945U CN200820211394U CN201326853Y CN 201326853 Y CN201326853 Y CN 201326853Y CN U2008202113945 U CNU2008202113945 U CN U2008202113945U CN 200820211394 U CN200820211394 U CN 200820211394U CN 201326853 Y CN201326853 Y CN 201326853Y
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- metal steel
- metallic sheath
- sebific duct
- metallic
- 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 lock catch structure of a vehicle oil suction pipe, which comprises metal steel tubes, rubber tubes and metallic sheaths. The lock catch structure is characterized in that annular projections are formed on the end heads of the metal steel tubes; annular check rings are formed on the metal steel tubes close to the end heads; the rubber tubes are sleeved between the annular projections of the metal steel tubes and the annular check rings; the metallic sheaths are sleeved outside the rubber tubes; and the metallic sheaths are provided with one or more contraction parts. The lock catch structure greatly enhances the reliability of the connection of the metal steel tubes and the rubber tubes, thereby being applicable for higher pressure and wider temperature range.
Description
Technical field:
The utility model relates to a kind of auto parts and components, specifically is a kind of structure of automobile oil pipe.
Background technique:
At home, automobile fuel sucking pipe linkage structure is at present: form an annular protrusion at the metallic steel pipe end, the annular protrusion section is with sebific duct, and there is steel band type elastic hoop the sebific duct outside that is enclosed within the annular protrusion section.This structure has several shortcomings: 1, and the scuffing of colliding with easily of elastic hoop surface can't guarantee the salt spray test requirement; 2, the elastic hoop place needs packing, and cost is higher; 3, pulling-out force is less, and steel pipe and sebific duct pull under big oil pressure easily.Improvement as said structure, be directly at metallic steel pipe end moulding one annular protrusion, the annular protrusion section is with sebific duct, and there is metallic sheath the sebific duct outside that is enclosed within the annular protrusion section, there is contraction at the annular protrusion place of corresponding metal steel pipe on the metallic sheath, and metallic sheath is impact briquetting.This structure solved elastic hoop surface in the past collide with easily scuffing, need to pack, shortcoming that pulling-out force is less.
Summary of the invention:
The utility model provides a kind of buckle structure of automobile fuel sucking pipe, the problem that collide with scuffing easily except that the solution oil pipe connects the elastic hoop surface, needs to pack, solves the pulling-out force problem of smaller simultaneously.
The technical solution adopted in the utility model:
A kind of buckle structure of automobile fuel sucking pipe, comprise metal steel pipe, sebific duct, metallic sheath, it is characterized in that: the metallic steel pipe end forms annular protrusion, form annular retaining ring near the end on the metal steel pipe, be with sebific duct between metallic steel pipe ring shape projection and the annular retaining ring, sebific duct is with metallic sheath outward, and a place or many places contraction flow region are arranged on the metallic sheath.
Described a kind of automobile oil pipe metallic sheath snap close linkage structure is characterized in that: described metallic sheath inner end have an annular retaining along with the metal steel pipe on annular retaining ring adjacent.
Described metallic sheath is a punching stretch forming, and 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, adopt an annular protrusion, the pulling-out force increase that is connected between sebific duct and metal steel pipe is bigger, increases seal point between metal steel pipe and sebific duct, the reliability of connection is strengthened greatly, thereby can adapt to higher pressure and wideer temperature range.Compare with other linkage structures, can finish the processing of the annular protrusion shaping end of metal steel pipe in the short period of time, can in metallic sheath, connect reliably, realized that processing fast, connects reliable advantage.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model steel pipe;
Fig. 3 is the utility model cross-sectional view.
Embodiment:
Referring to Fig. 1,2,3:
The linkage structure of automobile oil pipe is made up of metal steel pipe 1, metallic sheath 2, sebific duct 3.Form annular protrusion 5, an annular retaining ring 4 on the metal steel pipe 1, metal steel pipe 1 is inserted in the sebific duct 3, sebific duct 3 is enclosed within on the annular protrusion 5, sebific duct 3 front ends push up annular retaining ring 4, are with metallic sheath 2 outside sebific duct 3, metallic sheath 2 front ends have annular retaining along 6 with metal steel pipe 1 on annular protrusion 5 adjacent, radially lock at metallic sheath 2 outer surfaces by special purpose machine tool, form contraction flow region 7, so, then metal steel pipe 1 links together very securely with sebific duct 3.
Belt protruding 5, annular retaining ring 4 structures of metal steel pipe 1 are by the shaping die extrusion modling; Metallic sheath 2 is by low-carbon (LC) cold drawing punching stretch forming.
Claims (2)
1, a kind of buckle structure of automobile fuel sucking pipe, comprise metal steel pipe, sebific duct, metallic sheath, it is characterized in that: the metallic steel pipe end forms annular protrusion, form annular retaining ring near the end on the metal steel pipe, be with sebific duct between metallic steel pipe ring shape projection and the annular retaining ring, sebific duct is with metallic sheath outward, and a place or many places contraction flow region are arranged on the metallic sheath.
2, a kind of automobile oil pipe metallic sheath snap close linkage structure according to claim 1 is characterized in that: described metallic sheath inner end have an annular retaining along with the metal steel pipe on annular retaining ring adjacent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202113945U CN201326853Y (en) | 2008-12-19 | 2008-12-19 | Latching structure of vehicle oil suction pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202113945U CN201326853Y (en) | 2008-12-19 | 2008-12-19 | Latching structure of vehicle oil suction pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201326853Y true CN201326853Y (en) | 2009-10-14 |
Family
ID=41178826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202113945U Expired - Fee Related CN201326853Y (en) | 2008-12-19 | 2008-12-19 | Latching structure of vehicle oil suction pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201326853Y (en) |
-
2008
- 2008-12-19 CN CNU2008202113945U patent/CN201326853Y/en not_active Expired - Fee Related
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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: 20091014 Termination date: 20141219 |
|
| EXPY | Termination of patent right or utility model |