CN206781529U - Oil filling pipe for automobiles - Google Patents
Oil filling pipe for automobiles Download PDFInfo
- Publication number
- CN206781529U CN206781529U CN201720290739.XU CN201720290739U CN206781529U CN 206781529 U CN206781529 U CN 206781529U CN 201720290739 U CN201720290739 U CN 201720290739U CN 206781529 U CN206781529 U CN 206781529U
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- Prior art keywords
- gun barrel
- pipe
- stop collar
- connecting tube
- oil filling
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Abstract
The utility model discloses a kind of oil filling pipe for automobiles, it is related to field of automobile, it includes connecting tube, oiling gun barrel stop collar is provided with the connecting tube, the guide pipe of insertion oiling gun barrel is provided with below the oiling gun barrel stop collar in the connecting tube, the bottom of the connecting tube engages with the guide pipe, and the tube wall that the guide pipe is located in the connecting tube is provided with spill port.The utility model solves the problems, such as that fuel oil and fuel-steam are easily outwards gushed in refueling process.
Description
Technical field
It the utility model is related to field of automobile, the oil fuel tube on especially a kind of automotive oil tank.
Background technology
Oil filling pipe for automobiles has the requirement of oiling smoothness, i.e., must not occur injection rate during fuel filling not yet arrives oil
Case design volume lower limit self-sealing refueling gun is just automatic to close（Early jump rifle）, injection rate to tank design volume self-sealing refueling gun from
It is dynamic the requirement of the anti-phenomenon for gushing, sputtering oil filler of fuel oil occur when closing, and require self-styled during fuel filling
Nozzle certain angle that swings still can guarantee that normal fuel filling function.The factor for influenceing this function has oiling
When oil filling pipe in position etc. when inserting of pressure and nozzle.In addition, the requirement more and more higher with environmental protection, it is necessary to combustion
Oily filling process intermediate fuel oil discharge of steam amount is any limitation as.It will implement《Light-duty vehicle pollutant emission limit and measurement side
Method（Chinese 6th stage）》Standard is the standard of state six, and higher requirement is proposed to fuel oil and fuel steam discharge amount.
Existing oil filling pipe for automobiles includes oil inlet pipe and installs the connecting tube of fuel tank cap, and oiling gun barrel is provided with connecting tube
Stop collar, multiple passages are opened up on oiling gun barrel stop collar wall, stop collar has positioning jack, in order that gun barrel can be smooth
Positioning jack is inserted, there is gap between gun barrel and positioning jack, but the ratio between the length of positioning jack and internal diameter is smaller, it is right
The guide effect of oiling gun barrel is poor, and nozzle easily tilts.The oil fuel tube of this structure has the following disadvantages：1st, because being oriented to not
Foot cause the insertion position of nozzle be relative oil fuel tube tilt a larger angle position and incline direction randomness compared with
Greatly, the fuel oil that nozzle sprays can be mapped on tube wall to be reflected to form turbulent flow again, is not easy to form swabbing effect, in fuel up
During, easily force fuel oil and fuel-steam outwards to spray；2nd, when fuel tank oiling will be full, moment generation is larger in fuel tank
Pressure, fuel oil is accelerated Hui Yong, self-sealing refueling gun sensing hysteresis, further increase the anti-amount of gushing of fuel oil, fuel oil easily outwards gushes
Go out.
Utility model content
The purpose of this utility model is to provide a kind of oil filling pipe for automobiles, and this oil fuel tube can solve fuel oil and fuel-steam
The problem of easily outwards being gushed in refueling process.
In order to solve the above problems, the technical solution adopted in the utility model is：This oil filling pipe for automobiles includes connection
Manage, oiling gun barrel stop collar be provided with the connecting tube, it is characterised in that：It is located at the oiling gun barrel in the connecting tube
The guide pipe of insertion oiling gun barrel is provided with below stop collar, the bottom of the connecting tube engages with the guide pipe, described
The tube wall that guide pipe is located in the connecting tube is provided with spill port.
In the technical scheme of above-mentioned oil filling pipe for automobiles, more specifically technical scheme can also be：The oiling gun barrel is spacing
There is a toroidal cavity outside the positioning jack of set, the upper cavity wall of the toroidal cavity is provided with upper through hole, the lower cavity wall of the toroidal cavity
Provided with the lower through-hole to stagger with the upper lead to the hole site.
Further, there is the internal projecting ring to hole internal projection in the positioning jack of the oiling gun barrel stop collar.
Further, the oiling gun barrel stop collar is pressed in by elastic ring in the groove of the connection pipe orifice.
Further, the guide pipe stretches out from the lower end of the connecting tube.
Further, the lower end of the oiling gun barrel stop collar is inserted in the guide pipe.
Further, the oiling gun barrel stop collar is connected with the guide pipe.
Further, it is provided with inside projection in the guide pipe.
By adopting the above-described technical solution, the utility model has the advantages that compared with prior art：
1st, guide pipe is set below oiling gun barrel stop collar, extends the axially position length of nozzle, oiling gun barrel
Gap between guide pipe is smaller and uniform, thus makes the insertion position of nozzle more parallel with oil fuel tube and position when refueling
To put and compare determination, the fuel oil that nozzle projects can more swimmingly enter fuel tank, and then to caused by extraneous air during oiling
Low-pressure suction effect is stronger, and fuel oil is not easy outwards to spray in filling process, while self-sealing refueling gun is stopped the opportunity refueling
It is more reasonable, reduce because fluid sprays from the oil fuel tube mouth of pipe when self-sealing refueling gun sensing lags the anti-oil mass gushed and will filled it up with
The possibility go out, gushed out；In refueling process, liquid level of fuel oil in fuel tank steam is entered by the ventilation gap between guide pipe and oiling gun barrel
Enter connecting tube, fuel-steam produces the larger pressure loss by narrow ventilation gap, makes to enter connecting tube fuel-steam pressure
Power diminishes, and reduces the possibility that fuel-steam outwards sprays, while fuel-steam is flowed back along tube wall by spill port.
2nd, oiling gun barrel stop collar has toroidal cavity, because the upper cavity wall of toroidal cavity and the passage of lower cavity wall stagger,
Fraction fuel-steam enters the toroidal cavity inside turn, pressure is further reduced, so as to avoid fuel-steam from outwards escaping.
Brief description of the drawings
Fig. 1 is the structural representation of this oil filling pipe for automobiles embodiment 1.
Fig. 2 is the structural representation of this oil filling pipe for automobiles embodiment 2.
Fig. 3 is the structural representation of this oil filling pipe for automobiles embodiment 3.
Fig. 4 is the structural representation of this oil filling pipe for automobiles embodiment 4.
Fig. 5 is the structural representation of this oil filling pipe for automobiles embodiment 5.
Fig. 6 is the structural representation of this oil filling pipe for automobiles embodiment 6.
Embodiment
The utility model is described in further detail for embodiment below in conjunction with the accompanying drawings：
Embodiment 1
Oil filling pipe for automobiles shown in Fig. 1 mainly includes oil inlet pipe 11, guide pipe 12, connecting tube 14, oiling gun barrel stop collar
15, one end of connecting tube 14 is connected with oil inlet pipe 11, and the other end is used to install fuel tank cap, is located at oiling gun barrel in connecting tube 14
The lower section of stop collar 15 is provided with the guide pipe 12 for inserting oiling gun barrel 13, and the bottom of connecting tube 14 engages with guide pipe 12.
The bottom of oiling gun barrel stop collar 15 has the positioning jack matched with oiling gun barrel 3, is opened on the wall of oiling gun barrel stop collar 15
Provided with passage 151；Oiling gun barrel stop collar 15 is that stairstepping elastic thin-wall set, oiling gun barrel made of nylon material are spacing
The big end of set 15 is made into bellows portion, and also being made in connecting tube 14 has corresponding bellows portion, connecting tube 14, nozzle
The bellows portion of both pipe stop collars 15 is mutually chimeric, and elastic ring is provided with the inner surface recesses of oiling gun barrel stop collar 15
16, the elastic force that elastic ring 16 provides realizes the fixation of connecting tube 14, both nozzle limitation sets 15.Guide pipe 12 is from connecting tube 14
Lower end stretch out and link integrally with oil inlet pipe 11, the internal diameter of guide pipe 12 is more slightly larger than the external diameter of oiling gun barrel 13, makes guide pipe
Ventilation gap is left between 12 and the outer wall of oiling gun barrel 13, when self-sealing refueling gun inserts, oiling gun barrel 13 passes through oiling gun barrel
Stop collar 15 is inserted in guide pipe 12, and guide pipe 12 cooperatively forms self-sealing refueling gun positioning with oiling gun barrel stop collar 15 and filled
Put, due to position length increase and gap reduces, so the insertion position of nozzle is more parallel with oil fuel tube and position is more true
Fixed, the fuel oil that nozzle projects can more swimmingly enter fuel tank, and then to low-pressure suction caused by extraneous air during oiling
Effect is stronger.Oil inlet pipe 11 is connected by guide pipe 12 with oiling gun barrel stop collar 15, between connecting tube 14 and guide pipe 12
Space, which is formed, holds oil pocket 17, returns to fuel tank in order that holding returning in oil pocket 17 and gushing fuel oil, oil return is opened up in the tube wall of guide pipe 12
Hole 121, spill port 121, which is in, holds the bottom of oil pocket 17.
When fuel tank oiling will be full, fuel level rises along oil inlet pipe 11, when fuel level covers and closes self-styled oiling
After the induction installation of rifle front end, self-sealing refueling gun, which takes around, just completes self-styled closing motion for 0.3 second, and transient process also has within 0.3 second
A certain amount of fuel oil is continuing to fill；When fuel tank oiling will be full, the pressure of the thousands of pas of moment generation, accelerates back fuel oil in fuel tank
Gush.The utility model adds a guide pipe 12 in the inside hypomere of connecting tube 14, because the internal diameter of guide pipe 12 is smaller, Hui Yong fuel oil
Shift to an earlier date certain time triggering self-sealing refueling gun than existing product to stop refueling, Hui Yong fuel oil is by oiling gun barrel stop collar 15
Stop, the overwhelming majority, which is stored in, to be held in oil pocket 17, and fuel tank is flowed back to through spill port 121.So jump is sensed in advance using minor diameter pipe
Rifle, the anti-fuel oil swarmed and is accommodated using large diameter pipe, can effectively prevent from excessively gushing out showing for the oiling mouth of pipe because time gushing fuel oil
As occurring.
Embodiment 2
In oil filling pipe for automobiles shown in Fig. 2, the path section 211 of oiling gun barrel stop collar 21 is inserted in guide pipe 22, is oriented to
The oral area of pipe 22 sets horn mouth in order to assemble, and an inside bulge loop 221 is set on guide pipe 22, and other embodiments can also be arranged to
Several salient points to convex, the gap that can further reduce oiling gun barrel 23 and guide pipe 22 are that the depth of parallelism of the two is more preferable, its
Remaining feature is same as Example 1.Designed according to different fuel oil filling systems, can suitably change length, the bulge loop position of guide pipe
The positioning jack length of structural parameters and oiling gun barrel stop collar such as put.
Embodiment 3
Oil filling pipe for automobiles shown in Fig. 3, the positioning jack of oiling gun barrel stop collar have a toroidal cavity 33, annular sky outside
The upper cavity wall 31 of chamber 33 is provided with upper through hole 32, and the lower cavity wall 34 of the toroidal cavity 33 is provided with lower through-hole 35, and upper through hole 32 passes through ring
Shape cavity 33 is connected with lower through-hole 35, and upper through hole 32 and lower through-hole 35 position is mutually staggered certain angle, what the present embodiment staggered
Angle is 180 °.Remaining feature is same as Example 2.When remaining gasoline fuel steam comes oiling gun barrel by lower through-hole 35
When in stop collar toroidal cavity 33, it can be limited by cavity, circumnutation, process of circling round herein can only be done in toroidal cavity 33
The kinetic energy of middle oil and gas mixture is further consumed, and pressure further reduces, and this ensures there was only minimal amount or fired without gasoline
Oil vapour can be regurgitated from upper through hole 32.And the flow velocity that minimal amount regurgitates gasoline is very low, so that it cannot discharger
Mouthful.
Embodiment 4
Entirety is made with connecting tube 42 in oil filling pipe for automobiles shown in Fig. 4, oil inlet pipe 41, and oiling gun barrel stop collar 43 is with being oriented to
Pipe 44 is connected, and guide pipe 44, which extends, to be extend into oil inlet pipe 41, and waveform, the outer bulge loop of thin-walled elasticity is made in the end of guide pipe 44
441, outer bulge loop 441 has appropriate interference with the inwall of oil inlet pipe 41, forms sealing.Remaining feature is same as Example 3.
Embodiment 5
For using vehicle-mounted oil filling gas recovery system for oil（ORVR）The oil filling pipe for automobiles using mechanical seal design, this reality
It is to be made of one sealing structure and self-sealing refueling gun limiter with new technical scheme, its structure is as shown in figure 5, nozzle
There is the internal projecting ring 52 to hole internal projection, internal projecting ring 52 is interference fitted with oiling gun barrel 53 in the positioning jack of pipe stop collar 51.
Remaining feature is same as Example 3.Oiling gun barrel stop collar 51 is made of nylon PA12, and internal projecting ring 52 has with oiling gun barrel 53
The appropriate magnitude of interference, and nylon PA12 has certain elasticity in itself, can play mechanical seal effect, when preventing oiling full
Fuel oil overflows along gun barrel.PA12 ageing resistaces are stronger simultaneously, can be with the same equivalent life of automobile.Now in oiling gun barrel stop collar
Passage on outer layer can need to decide what to use according to ORVR system designs.
Embodiment 6
Oil filling pipe for automobiles shown in Fig. 6, two sections of 61 size of connecting tube is not coaxial, is eccentric structure, oiling gun barrel therein
Stop collar 62 and eccentric structure, are out-of-alignments between the mouth of pipe of connecting tube 61 and the pipe shaft of oil inlet pipe 63.This embodiment can be with it
He implements in each embodiment combination.
Claims (8)
1. a kind of oil filling pipe for automobiles, including connecting tube, oiling gun barrel stop collar is provided with the connecting tube, its feature exists
In：The guide pipe of insertion oiling gun barrel is provided with below the oiling gun barrel stop collar in the connecting tube, it is described
The bottom of connecting tube engages with the guide pipe, and the tube wall that the guide pipe is located in the connecting tube is provided with spill port.
2. oil filling pipe for automobiles according to claim 1, it is characterised in that：Outside the positioning jack of the oiling gun barrel stop collar
Have a toroidal cavity, the upper cavity wall of the toroidal cavity is provided with upper through hole, the lower cavity wall of the toroidal cavity be provided with it is described logical
The lower through-hole that hole site is staggered.
3. oil filling pipe for automobiles according to claim 1 or 2, it is characterised in that：The positioning of the oiling gun barrel stop collar is inserted
There is the internal projecting ring to hole internal projection in hole.
4. oil filling pipe for automobiles according to claim 3, it is characterised in that：The oiling gun barrel stop collar passes through elastic ring pressure
In the groove of the connection pipe orifice.
5. oil filling pipe for automobiles according to claim 4, it is characterised in that：The guide pipe is stretched from the lower end of the connecting tube
Go out.
6. oil filling pipe for automobiles according to claim 5, it is characterised in that：The lower end insertion institute of the oiling gun barrel stop collar
State in guide pipe.
7. oil filling pipe for automobiles according to claim 1 or 2, it is characterised in that：The oiling gun barrel stop collar is led with described
It is connected to pipe.
8. oil filling pipe for automobiles according to claim 3, it is characterised in that：Inside projection is provided with the guide pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720290739.XU CN206781529U (en) | 2017-03-23 | 2017-03-23 | Oil filling pipe for automobiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720290739.XU CN206781529U (en) | 2017-03-23 | 2017-03-23 | Oil filling pipe for automobiles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206781529U true CN206781529U (en) | 2017-12-22 |
Family
ID=60705312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720290739.XU Active CN206781529U (en) | 2017-03-23 | 2017-03-23 | Oil filling pipe for automobiles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206781529U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106864254A (en) * | 2017-03-23 | 2017-06-20 | 广西南星科技有限公司 | Oil filling pipe for automobiles |
-
2017
- 2017-03-23 CN CN201720290739.XU patent/CN206781529U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106864254A (en) * | 2017-03-23 | 2017-06-20 | 广西南星科技有限公司 | Oil filling pipe for automobiles |
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