CN201366934Y - Automobile fuel tank oil-filling pipe with built-in threaded tube sleeve - Google Patents
Automobile fuel tank oil-filling pipe with built-in threaded tube sleeve Download PDFInfo
- Publication number
- CN201366934Y CN201366934Y CNU2009201138668U CN200920113866U CN201366934Y CN 201366934 Y CN201366934 Y CN 201366934Y CN U2009201138668 U CNU2009201138668 U CN U2009201138668U CN 200920113866 U CN200920113866 U CN 200920113866U CN 201366934 Y CN201366934 Y CN 201366934Y
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- China
- Prior art keywords
- threaded tube
- built
- filler pipe
- tube
- fuel filler
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- Expired - Fee Related
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Abstract
The utility model discloses an automobile fuel tank oil-filling pipe with a built-in threaded tube sleeve, which belongs to the automobile parts manufacturing technical field. The oil-filling pipe comprises a vent pipe and an oil-filling pipe body that is provided with an expansion pipe part, wherein the expansion pipe part is internally provided with a threaded tube sleeve; and the threaded tube sleeve is hermetically matched with the expansion pipe part. Compared with the prior art, the threaded tube sleeve is directly arranged in the expansion pipe part of the oil-filling pipe, and any welded connection is not adopted, therefore, the appearance quality is improved; meanwhile, the product quality is improved, and the cost loss caused by welding defects is greatly reduced; the safety performance of the oil-filling pipe can be improved, the production cost is reduced, and the energy is saved, thereby being favorable for environmental protection. Therefore, the oil-filling pipe has the advantages of good safety and reliability, high quality, high environmental protection, low production cost and the like.
Description
Technical field
The utility model relates to the Manufacturing Technology for Automotive Parts field, especially relates to a kind of fuel tank of vehicle fuel filler pipe with built-in threaded tube.
Background technology
At present, existing fuel tank of vehicle fuel filler pipe all has the threaded tube part, in order to cooperate with the fuel filler pipe lid fuel filler pipe is sealed, but present threaded tube part all is directly to be welded on the oiling pipe, and threaded tube is to expose outside.There is following defective in above-mentioned structure: 1, the threaded tube of fuel filler pipe welding easy deformation and generation welding slag influence the oil pipe outward appearance; 2, the imperfect easy gaps and omissions of welding in fuel filler pipe and the threaded tube welding process, and cause defectives such as welding pore, influence the sealing of fuel filler pipe and cause the leakage of fuel oil to bring potential safety hazard; 3, the mode of existing oiling pipe and threaded tube welding increases cost, waste wlding and power consumption etc.Therefore, it is ugly that the processing mode of traditional fuel filler pipe threaded tube causes existing fuel filler pipe to have outward appearance, the reject rate height, and poor safety performance, the productive costs height, the material energy consumption is big, defectives such as unfavorable environmental protection.
Summary of the invention
Technical problem to be solved in the utility model is the present situation at prior art, and a kind of simple and reasonable, reject rate is low, safety performance is high, productive costs is low, energy consumption is little and environmental fuel tank of vehicle fuel filler pipe with built-in threaded tube is provided.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of fuel tank of vehicle fuel filler pipe with built-in threaded tube, comprise breather pipe and fuel filler pipe body with expansion tube department, the expansion tube department place is built-in with threaded tube, is sealed and matched mutually between this threaded tube and the expansion tube department.
Further technical measures comprise:
The inner tubal wall interference fit of the outer tube wall of above-mentioned threaded tube and expansion tube department.
Above-mentioned threaded tube comprises pipe portion and contraction flow region; The inner tubal wall interference fit of the outer tube wall of pipe portion and expansion tube department.
Have at least one air extractor vent on the contraction flow region of above-mentioned threaded tube.
The cross-sectional plane of the contraction flow region of above-mentioned threaded tube is circular, and the diameter of the diameter of the interior oil inlet of its end and nozzle head is suitable.
The diameter of the maximum inscribed circle of above-mentioned air extractor vent is less than the diameter of nozzle head.
Fuel filler pipe of the present utility model also comprises the support that has the hole, and support sets up and is welded on fuel filler pipe body and the breather pipe.
Compared with prior art, the utility model comprises breather pipe and has the fuel filler pipe body of expansion tube department, and the expansion tube department place is built-in with threaded tube, is sealed and matched mutually between this threaded tube and the expansion tube department.Because threaded tube is directly installed in the expansion tube department of fuel filler pipe, and need not take any being welded to connect, and has improved presentation quality, simultaneously, has improved product design, greatly reduce because the cost allowance that weld defect causes; And the safety performance that more can improve fuel filler pipe, and reduce production costs, energy savings helps environmental protection.Therefore the utlity model has safe and reliable, high quality, high environmental protection, advantage such as productive costs is low.
Description of drawings
Fig. 1 is the utility model embodiment integral structure scheme drawing;
Fig. 2 is the expansion tube department radial view of Fig. 1;
Fig. 3 is the generalized section of F-F position among Fig. 2.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Fig. 1 is to embodiment shown in Figure 3, and figure grade illustrates: breather pipe 1, fuel filler pipe body 2, expansion tube department 2a, threaded tube 3, pipe portion 31, contraction flow region 32, air extractor vent 32a, interior oil inlet 32b, support 4.
As shown in figures 1 and 3, a kind of fuel tank of vehicle fuel filler pipe with built-in threaded tube comprises breather pipe 1 and has the fuel filler pipe body 2 of expansion tube department 2a that expansion tube department 2a place is built-in with threaded tube 3, is sealed and matched mutually between this threaded tube 3 and the expansion tube department 2a.In the utility model, threaded tube 3 comprises pipe portion 31 and contraction flow region 32; And the interference fit between the inner tubal wall of outer tube wall by pipe portion 31 and expansion tube department 2a realizes being sealed and matched between threaded tube 3 and the expansion tube department 2a.The cross-sectional plane of the contraction flow region 32 of threaded tube 3 is circular, and the diameter of the interior oil inlet 32b of its end and the diameter of nozzle head are suitable.The contraction flow region 32 that is provided with on the threaded tube 3 is used to cooperate the nozzle that inserts in the threaded tube 3, owing to just can insert the nozzle head in the interior oil inlet 32b, should be used to cooperate the nozzle that inserts in the threaded tube 3 by interior oil inlet 32b, can prevent nozzle rocking in refueling process, make the placement of nozzle more stable.
Have at least one air extractor vent 32a on the contraction flow region 32 of threaded tube 3.The diameter of the maximum inscribed circle of air extractor vent 32a is less than the diameter of nozzle head.Because contraction flow region 32 has ventilation and supports the effect of robbing of refueling, therefore, in refueling process, the air that comes out from fuel filler pipe body 2 during oiling also can be by 32 air extractor vent 32a, can increase degassing function, and prevent because the fuel tank exhaust is not smooth, and cause the gasoline rifle to add the rifle that returns that oil pressure causes inadequately, produce and add having some setbacks of shortage of oil or refueling process in the automotive oil tank.The design of threaded tube 3 can make refueling process more smooth and easy.And the diameter of the maximum inscribed circle of air extractor vent 32a makes that less than the diameter of nozzle head the nozzle head can not misplug in the air extractor vent 32a, thereby makes convenient, the safety of oiling work when inserting nozzle.
In order to stablize the utility model in car body in-to-in position, present embodiment also comprises the support 4 that has the hole, and support 4 sets up and is welded on fuel filler pipe body 2 and the breather pipe 1.
In order to make performance of the present utility model excellent more, present embodiment has also been taked following technical measures: the expansion tube department 2a of fuel filler pipe body 2 is expansion-moldings; Threaded tube 3 is punching stretch formings; In addition, for fear of the gap that produces owing to rising-heat contracting-cold, threaded tube 3 has adopted identical metallic material with fuel filler pipe body 2.
The utlity model has following advantage:
1) built-in threaded tube fuel filler pipe outward appearance is clean and tidy, can not produce because direct defective such as distorting of causing of welding and welding slag, and tube outer surface is easier to carry out follow-up outer list processing.
2) built-in threaded tube fuel filler pipe adopts threaded tube outer wall applying oiling steel pipe expander place inwall interference fit firm, then the fuel filler pipe that can directly not bring because of the technological deficiency of welding welds imperfect, welding pore etc. influences the fuel filler pipe leak tightness and leaks the potential safety hazard that requires, and reduces scrapping and productive costs of part.
3) connection mode of built-in threaded tube does not need welding, then can reduce the loss of welding material, reduces the consumption of electric power energy, does not produce pernicious gas and a large amount of CO
2Isothermal chamber gas more helps environmental protection.
Though the utility model illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.
Claims (7)
1, a kind of fuel tank of vehicle fuel filler pipe with built-in threaded tube, comprise breather pipe (1) and have the fuel filler pipe body (2) of expansion tube department (2a), it is characterized in that: described expansion tube department (2a) locates to be built-in with threaded tube (3), is sealed and matched mutually between this threaded tube (3) and the described expansion tube department (2a).
2, a kind of fuel tank of vehicle fuel filler pipe with built-in threaded tube according to claim 1 is characterized in that: the inner tubal wall interference fit of the outer tube wall of described threaded tube (3) and described expansion tube department (2a).
3, a kind of fuel tank of vehicle fuel filler pipe according to claim 1 with built-in threaded tube, it is characterized in that: described threaded tube (3) comprises pipe portion (31) and contraction flow region (32); The inner tubal wall interference fit of the outer tube wall of described pipe portion (31) and described expansion tube department (2a).
4, a kind of fuel tank of vehicle fuel filler pipe with built-in threaded tube according to claim 3 is characterized in that: have at least one air extractor vent (32a) on the contraction flow region (32) of described threaded tube (3).
5, a kind of fuel tank of vehicle fuel filler pipe according to claim 4 with built-in threaded tube, it is characterized in that: the cross-sectional plane of the contraction flow region (32) of described threaded tube (3) is circular, and the diameter of the interior oil inlet (32b) of its end and the diameter of nozzle head are suitable.
6, a kind of fuel tank of vehicle fuel filler pipe with built-in threaded tube according to claim 5, it is characterized in that: the diameter of the maximum inscribed circle of described air extractor vent (32a) is less than the diameter of nozzle head.
7, according to the described a kind of fuel tank of vehicle fuel filler pipe of arbitrary claim in the claim 1 to 6 with built-in threaded tube, it is characterized in that: also comprise the support (4) that has the hole, described support (4) sets up and is welded on described fuel filler pipe body (2) and the described breather pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201138668U CN201366934Y (en) | 2009-02-18 | 2009-02-18 | Automobile fuel tank oil-filling pipe with built-in threaded tube sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201138668U CN201366934Y (en) | 2009-02-18 | 2009-02-18 | Automobile fuel tank oil-filling pipe with built-in threaded tube sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201366934Y true CN201366934Y (en) | 2009-12-23 |
Family
ID=41485833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201138668U Expired - Fee Related CN201366934Y (en) | 2009-02-18 | 2009-02-18 | Automobile fuel tank oil-filling pipe with built-in threaded tube sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201366934Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862022A (en) * | 2012-08-25 | 2013-01-09 | 福州诺贝尔福基机电有限公司 | Process and equipment for producing head of main oil filling pipe |
| CN104553758A (en) * | 2014-12-31 | 2015-04-29 | 芜湖顺荣汽车部件股份有限公司 | Refueling device and oil tank |
| CN114251153A (en) * | 2020-09-24 | 2022-03-29 | 北京汽车动力总成有限公司 | Bent pipeline structure and vehicle |
-
2009
- 2009-02-18 CN CNU2009201138668U patent/CN201366934Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862022A (en) * | 2012-08-25 | 2013-01-09 | 福州诺贝尔福基机电有限公司 | Process and equipment for producing head of main oil filling pipe |
| CN104553758A (en) * | 2014-12-31 | 2015-04-29 | 芜湖顺荣汽车部件股份有限公司 | Refueling device and oil tank |
| CN114251153A (en) * | 2020-09-24 | 2022-03-29 | 北京汽车动力总成有限公司 | Bent pipeline structure and vehicle |
| CN114251153B (en) * | 2020-09-24 | 2023-03-10 | 北京汽车动力总成有限公司 | Bent pipeline structure and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Shunjiang Auto Parts Manufacturing Co., Ltd. Assignor: Jiang Zhiming Contract record no.: 2010330000680 Denomination of utility model: Automobile fuel tank oil-filling pipe with built-in threaded tube sleeve Granted publication date: 20091223 License type: Exclusive License Record date: 20100430 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20180218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |