CN201309413Y - Oil filling hard pipe and oil filling hard pipe assembly - Google Patents
Oil filling hard pipe and oil filling hard pipe assembly Download PDFInfo
- Publication number
- CN201309413Y CN201309413Y CNU2008201403870U CN200820140387U CN201309413Y CN 201309413 Y CN201309413 Y CN 201309413Y CN U2008201403870 U CNU2008201403870 U CN U2008201403870U CN 200820140387 U CN200820140387 U CN 200820140387U CN 201309413 Y CN201309413 Y CN 201309413Y
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- CN
- China
- Prior art keywords
- hard tube
- oiling
- opening part
- oiling hard
- oil filling
- 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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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model discloses an oil filling hard pipe (10). A pipe orifice part (11) of the oil filling hard pipe (10) is internally provided with a bulge (12) which is wedged. The oil filling hard pipe can be matched with an oil filling hole cover with a lock through the wedged bulge (12), and the wedged bulge (12) is convenient for tightly locking the oil filling hole cover and keeping the sealing connection between the oil filling hard pipe (10) and the oil filling hole cover. The utility model also provides an oil filling hard pipe assembly with a vent hard pipe (20), one end of the vent hard pipe (20) is communicated with the pipe orifice part (11) of the oil filling hard pipe, and the pipe orifice part (11) of the oil filling hard pipe is internally provided with the wedged bulge (12). The oil filling hard pipe (10) and the oil filling hard pipe assembly can be made of metal pipes and have the hollow pipe orifice part (11) and thin pipe wall, thereby greatly lowering the production cost.
Description
Technical field
The utility model relates to the fuel filler pipe of vehicle and has the group refueling hard tube assembly of the hard tube of ventilating.
Background technology
The fuel filler pipe system of vehicle generally is made up of filler cap, oiling hard tube, refueling hose, ventilation hard tube and breather hose.The afterbody of oiling hard tube and ventilation hard tube is connected to refueling hose and breather hose.The ventilation hard tube and the hard tube that refuels are communicated with, and produce bubble when preventing to refuel.In order to make contour of the vehicle attractive in appearance, the fuel door on the vehicle body does not have lock, and tapered end can be arranged on the filler cap of fuel loading system, filler cap is installed in the mouth of pipe of oiling hard tube usually, excessive to prevent fuel oil, need to open earlier the fuel door on the vehicle body before the oiling, take off filler cap then.Wherein, and have projection in the oiling hard tube that the filler cap that has tapered end cooperates, have on the filler cap and refuel the tapered end that the projection of hard tube cooperates, to keep filler cap and to refuel locking connection between the hard tube.
In the prior art, as shown in Figure 1, the projection 12 that cooperates with the tapered end of filler cap on the oiling hard tube 10 is cuboid normally, has the square-section, that is to say, when filler cap was connected with oiling hard tube 10, the tapered end of filler cap was positioned on the fixing cooperation position, made that locking bonded assembly leak tightness is relatively poor between filler cap and the oiling hard tube 10.For the leak tightness that realizes locking, the projection 12 of oiling hard tube 10 and the tapered end of filler cap need have very high precision, accurately to be engaged on the fixed position, keep being tightly connected.Therefore, the oiling hard tube 10 that cooperates with the filler cap that has tapered end is generally plastics oiling hard tube, thereby injects pipe internal projection 12 and keep certain precision.In addition, in order to guarantee enough intensity, opening part 11 is an entity, and thickness of pipe is more than 3mm.In addition, the hard tube 10 that refuels normally forms single-piece by injection mo(u)lding with the oiling hard tube assembly that ventilation hard tube 20 forms, and not only difficulty of processing is big, and in order to guarantee that enough intensity need expend a lot of materials, the productive costs height.
The utility model content
In order to overcome in the prior art, problems such as the complex manufacturing of the oiling hard tube that cooperates with the filler cap that has tapered end, cost height, the utility model provides a kind of oiling hard tube, be formed with the projection that is used for the snap close filler cap in the opening part of described oiling hard tube, it is characterized in that described convexing to form is wedge shape.
Use oiling hard tube of the present utility model, the projection of described wedge shape can be under the not high situation of working accuracy, filler cap is moved on the axis direction of edge oiling hard tube, and tapered end is slided with respect to the projection of described wedge shape, and described oiling hard tube and described filler cap are tightly connected.Because working accuracy is not high, can use metallo-oiling hard tube, metal tube has enough intensity, therefore, described oiling hard tube can form the hollow mouth of pipe, and the thickness of pipe of described oiling hard tube can reduce greatly than plastic tube wall, thereby has reduced the productive costs of oiling hard tube to a great extent.
In order to make the compact conformation of fuel loading system, the utility model also provides a kind of oiling hard tube assembly, this oiling hard tube assembly comprises oiling hard tube and ventilation hard tube, one end of described ventilation hard tube is communicated with the opening part of described oiling hard tube, be formed with projection in the mouth of pipe of described oiling hard tube, wherein, described convexing to form is wedge shape.
Described oiling hard tube assembly can be tightly connected the oiling hard tube and the filler cap of described oiling hard tube assembly when guaranteeing compact conformation.
Description of drawings
Fig. 1 is the opening part cutaway view of oiling hard tube of the prior art;
Fig. 2 is the external view of the embodiment of oiling hard tube assembly of the present utility model;
Fig. 3 is the opening part cutaway view of the embodiment of oiling hard tube assembly of the present utility model;
Fig. 4 is the pipe tail bit cutaway view of the embodiment of oiling hard tube assembly of the present utility model.
The specific embodiment
As shown in Figures 2 and 3, be formed with projection 12 in the opening part 11 according to oiling hard tube 10 of the present utility model, wherein, projection 12 forms wedge shape.
Wherein, projection 12 can for plastics or metal be made and be connected in the opening part 11 by variety of way, for example can be injection-moulded on the opening part 11 that plastics make or is welded on the inwall of metal opening part 11.For example, a side of projection 12 can be fixedly connected on the inwall of opening part 11.In addition, can be provided with a plurality of protrudingly 12 in opening part 11, cooperating the tapered end on the filler cap better, this a plurality of protruding 12 can all form wedge shape, and the horizontal surface that makes top is positioned on the same horizontal surface, but can have differing heights and angle of inclination.
According on the other hand of the present utility model, ventilation hard tube 20 and oiling hard tube 10 can be formed oiling hard tube assemblies, particularly, the hard tube assembly that refuels comprises oiling hard tube 10 and ventilation hard tube 20, the ventilation hard tube 20 and the hard tube 10 that refuels are communicated in the connecting bore 13 in the opening part 11, be formed with projection 12 in the opening part 11 of oiling hard tube 10, wherein, projection 12 forms wedge shape.
Refuel hard tube 10 and ventilation hard tube 20 when be plastic pipe, and refueling the hard tube assembly can be integrally formed by modes such as injection mouldings, can or be bonded on the inwall of opening part 11 of oiling hard tube 10 wedge shape projection 12 injection mouldings.Preferably, the hard tube 10 that refuels can form metal tube (being preferably steel pipe) with ventilation hard tube 20, and makes oiling hard tube 10 and ventilation hard tube 20 be tightly connected (being preferably welding) around connecting bore 13.Projection 12 can be connected on the inwall of opening part 11 in every way, and for example, the projection 12 that plastics can be made is bonded on the inwall of opening part 11, or is welded on the inwall of opening part 11 metal protruding 12.Owing to used metallic material, have enough intensity, opening part 11 can form hollow structure, and the thickness of pipe of oiling hard tube 10 and ventilation hard tube 20 is that 1mm can satisfy required requirement of strength.Compared to traditional plastic pipe assembly, thickness of pipe reduces greatly, and metallic material is low than the plastic material cost, thereby has reduced the productive costs of oiling hard tube assembly to a great extent.
Because ventilation hard tube 20 is communicated with oiling hard tube 10 by connecting bore 13, during oiling, fuel oil enters ventilation hard tube 20 from connecting bore 13 easily.Therefore, oiling hard tube assembly of the present utility model also comprises catch 16, this catch 16 can be arranged on the plate around the connecting bore 13, catch 16 blocks the part of connecting bore 13 and makes the part of the bottom of connecting bore 13 keep opening wide (promptly being communicated with oiling hard tube 10 and ventilation hard tube 20), thereby prevents that in the ventilation effect that guarantees ventilation hard tube 20 fuel oil from entering the hard tube 20 of ventilating from connecting bore 13.
Preferably, as shown in Figure 3, ring washer 31 and back ring washer 32 before the outside of opening part 11 can be provided with.Should be cylindrical housings with back ring washer 32 and be set on the outer wall of opening part 11 by preceding ring washer 31.Wherein, preceding ring washer 31 mainly plays the effect of assisting filler cap and oiling hard tube 10 to be tightly connected, and the top surface of this preceding ring washer 31 is a flat surface, and the bottom is sealedly and fixedly connected (as bonding or welding) on the outer wall of opening part 11.When filler cap was installed on the oiling hard tube 10, the seal ring of filler cap can be sealed and matched with preceding ring washer 31, made the better effects if that is tightly connected of filler cap and oiling hard tube 10.Back ring washer 32 is used to install the rubber sheath (not shown) on the automobile, and this rubber sheath is set in the outside of back ring washer 32.The below of ring washer 31 before back ring washer 32 is positioned at, the bottom captive joint of this back ring washer 31 (as bonding or welding) is in the outer wall of opening part 11, and be formed with 2～10 outages in the bottom, the diameter in this hole can be 2～10mm, and the fuel oils that enter in the back ring washer 32 when being used for oiling are excreted to the outside.Before ring washer 31 be arranged on the position of the mouth of pipe of back ring washer 32 more close oiling hard tubes 10, preferably, can the fit bottom of preceding ring washer 31, the top of back ring washer 32.
Oiling hard tube assembly of the present utility model is installed for convenience, can support 40 be set at the afterbody of oiling hard tube assembly of the present utility model, this support 40 can be a steel plate, be used to connect refuel hard tube 10 afterbody and the ventilation hard tube 20 afterbody, the afterbody of described oiling hard tube assembly can be fixedly mounted on the vehicle by support 6.For example, the afterbody of oiling hard tube 10 and the afterbody of ventilation hard tube 20 can be welded on respectively on the support 40, and support 40 be fixed on the vehicle by the mode of mechanical connection.
During use, the afterbody of oiling hard tube 10 and ventilation hard tube 20 is tightly connected with refueling hose and breather hose (not shown) respectively, preferably the afterbody of hard tube is inserted the mouth of pipe of flexible pipe.In order to reach better leak tightness, as shown in Figure 4, can on the afterbody of the afterbody of oiling hard tube 10 and the hard tube 20 of ventilating, form a plurality of annular projections 17 and 27.When temperature change expanded hard tube, the expansion of this annular projection can more closely partly cooperate with flexible pipe, so that hard tube keeps good being sealed and matched to be connected with flexible pipe.Preferably, can form 3～6 annular projections respectively refueling the afterbody of ventilation hard tube 20 of hard tube 10.
Claims (10)
1. an oiling hard tube (10) is formed with the projection (12) that is used for the snap close filler cap in the opening part (11) of described oiling hard tube (10), it is characterized in that described projection (12) forms wedge shape.
2. oiling hard tube according to claim 1 is characterized in that, the described projection (12) of wedge shape has upper horizontal surface and lower tilt surface, captives joint with the inwall of described opening part (11) in the side of described projection (12).
3. oiling hard tube according to claim 2, it is characterized in that, be formed with the described projection (12) of a plurality of wedge shapes in the described opening part (11), the height of the described projection (12) of wedge shape is 1.5～3mm, and the angle between described inclined surface and the described horizontal surface is 5～15 °.
4. one kind is refueled the hard tube assembly, this oiling hard tube assembly comprises oiling hard tube (10) and ventilation hard tube (20), one end of described ventilation hard tube (20) is communicated with the opening part (11) of described oiling hard tube, is formed with any described projection (12) in the claim 1 to 3 in the opening part of described oiling hard tube (11).
5. oiling hard tube assembly according to claim 4 is characterized in that, described oiling hard tube (10) and ventilation hard tube (20) are metal tube, and an end of described ventilation hard tube (20) is sealedly connected on the described opening part (11) of described oiling hard tube (10).
6. oiling hard tube assembly according to claim 4, it is characterized in that, described oiling hard tube (10) is communicated in connecting bore (13) with described ventilation hard tube (20), and described connecting bore (13) is provided with on every side and prevents that the oil that adds from entering the grease baffle (16) of described ventilation hard tube (20).
7. oiling hard tube assembly according to claim 4, it is characterized in that, the tube wall outer setting of described opening part (11) has the preceding ring washer (31) that is tightly connected that can keep described filler cap and described oiling hard tube (10), this preceding ring washer (31) be set in described opening part (11) outer wall front end and be sealed and matched with described filler cap.
8. oiling hard tube assembly according to claim 4, it is characterized in that, the tube wall outer setting of described opening part (11) is useful on the back ring washer (32) of the rubber sheath of mounting vehicle, and this back ring washer (32) is positioned at the below of described preceding back-up ring (31) and is set on the outer wall of described opening part (11).
9. oiling hard tube assembly according to claim 4, it is characterized in that, the afterbody of described oiling hard tube assembly is provided with support (40), and this support (40) connects the afterbody of described oiling hard tube (10) and the afterbody of described ventilation hard tube (20), and is fixed on the vehicle.
10. oiling hard tube assembly according to claim 4 is characterized in that, the afterbody of the afterbody of described oiling hard tube (10) and described ventilation hard tube (20) is respectively arranged with a plurality of annular projections (17,27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201403870U CN201309413Y (en) | 2008-11-14 | 2008-11-14 | Oil filling hard pipe and oil filling hard pipe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201403870U CN201309413Y (en) | 2008-11-14 | 2008-11-14 | Oil filling hard pipe and oil filling hard pipe assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201309413Y true CN201309413Y (en) | 2009-09-16 |
Family
ID=41106666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201403870U Expired - Fee Related CN201309413Y (en) | 2008-11-14 | 2008-11-14 | Oil filling hard pipe and oil filling hard pipe assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201309413Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275684A (en) * | 2014-06-09 | 2016-01-27 | 丰田合成株式会社 | Fuel supply system |
| CN113701037A (en) * | 2021-09-13 | 2021-11-26 | 南京智鹤电子科技有限公司 | Butter filling pipe structure convenient for butt joint and assembling method thereof |
-
2008
- 2008-11-14 CN CNU2008201403870U patent/CN201309413Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275684A (en) * | 2014-06-09 | 2016-01-27 | 丰田合成株式会社 | Fuel supply system |
| CN105275684B (en) * | 2014-06-09 | 2019-05-14 | 丰田合成株式会社 | Fuel supply system |
| CN113701037A (en) * | 2021-09-13 | 2021-11-26 | 南京智鹤电子科技有限公司 | Butter filling pipe structure convenient for butt joint and assembling method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090916 Termination date: 20161114 |