CN101177156A - Inner concealed oil cell of two-wheel motorcycle preventing ventilation hole from spilling oil - Google Patents
Inner concealed oil cell of two-wheel motorcycle preventing ventilation hole from spilling oil Download PDFInfo
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- CN101177156A CN101177156A CNA2007100930848A CN200710093084A CN101177156A CN 101177156 A CN101177156 A CN 101177156A CN A2007100930848 A CNA2007100930848 A CN A2007100930848A CN 200710093084 A CN200710093084 A CN 200710093084A CN 101177156 A CN101177156 A CN 101177156A
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- lid
- fuel tank
- oil
- air extractor
- valve
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Abstract
The invention discloses an air vent oil leakage-proof built-in gasoline tank for two-wheeled motorcycle, comprising a gasoline tank, a gasoline tank cover, a gasoline tank housing, a throughhole, and an automatic on-off vent device, wherein the gasoline tank is covered with the gasoline tank cover, which is arranged on the gasoline tank; the throughhole is arranged on the top end face of the gasoline tank housing; the automatic on-off vent device is positioned on the upper end of the throughhole and is fixedly connected with the housing. The automatic on-off vent device comprises a valve body and a cover body; wherein the valve body is fixedly connected at the bottom of the cover body; a valve base with a downward cavity mouth is arranged on the lower part of the valve body; an air vent is positioned on the top part of the valve cavity of the valve base; a sphere valve core is arranged in the valve cavity, which has the displacement degree of freedom to the top part of the valve cavity; the bottom of the valve cavity is sealed with a back cover; a blowhole is arranged on the sidewall of the valve base, which is communicated with a intra-cavity of the housing; the cover body is provided with a vent pipe connected with a purification device. The invention not only can open to ventilate in an ordinary condition, but also can automatically close when the motorcycle turns sideways, so as to prevent the gasoline in gasoline tank from flowing into the purification device through the vent pipe.
Description
Technical field
The utility model relates to a kind of motorcycle tank, the built-in fuel tank of the anti-air extractor vent leakage of oil of particularly a kind of two-wheeled motor vehicle.
Background technology
After being installed on the vehicle frame, the built-in fuel tank of two-wheeled motor vehicle blocked by exterior cover panel covering.The built-in fuel tank of present two-wheeled motor vehicle can normally carry out for the fuel feeding that solves driving engine, all fuel lid is provided with air extractor vent the fuel tank inner chamber is communicated with atmosphere, make the air pressure in the fuel tank identical, when engine operation, fuel tank can be carried out smoothly the fuel feeding of driving engine with atmosphere; And after driving engine quit work, the gasoline vapor in the fuel tank can directly be discharged in the atmosphere by this air extractor vent again, for reducing pressure in the fuel tank chamber.Along with the requirement to motorcycle emission improves, country does not allow the direct exhaust to atmosphere of the gasoline vapor in the fuel tank, gasoline vapor must be discharged through after the purifying treatment again, this just causes the existing structure that in line air extractor vent is set on fuel lid can not use again, needs existing Oiltank structure is improved.Owing to blocked by exterior cover panel covering after the built-in fuel tank of two-wheeled motor vehicle is installed on the vehicle frame, its periphery is minimum with the clearance space of cover panel, device to the gasoline vapor purifying treatment can't be arranged on the fuel tank, and fuel lid is because of safety and reason easy to use, lid is less relatively, and the space of purifying processing device is not set on the less fuel lid of volume yet.And in case solved fuel tank discharging gasoline vapor purifying problem, how to solve after two-wheeled motor vehicle is turned on one's side again, gasoline in the fuel tank flows in the purifying processing device along air extractor vent, destroy the performance of the medium that is used for purifying treatment in the clean-up device, cause purifying processing device to lose the problem of purification function, just become the manufacturing difficult problem of present motor.
Summary of the invention
The objective of the invention is problem at the prior art existence, the built-in fuel tank of the anti-air extractor vent leakage of oil of a kind of two-wheeled motor vehicle is provided, its device by on fuel tank, being provided for ventilating and can automatic shutter, make under the normal circumstances, this device is opened ventilation, during the motor bike rollover, this installs SELF CL, prevents that the gasoline in the fuel tank from flowing in the purifying processing device through breather pipe.
The object of the present invention is achieved like this: be included in the fuel tank that oil filling port is stamped fuel lid, it is characterized in that: the top end face of the casing of fuel tank is established a through hole in addition, one is used to ventilate and device that can automatic shutter is positioned at the through hole upper end and is fixedly connected on casing, the described device that is used to ventilate and can automatic shutter comprises valve body and lid, valve body is fixedly connected on below the lid, valve body lower portion is provided with the downward valve seat of accent, one air extractor vent is positioned at the valve pocket top, one ball spool places valve pocket, apart from the valve pocket top displacement degree of freedom is arranged, sealed by bottom at the bottom of the valve pocket, the valve seat sidewall is provided with pore and communicates with cabinets cavity, breather pipe is set on the lid is communicated with purifying processing device.
Owing to adopted such scheme, top end face at the casing of fuel tank is established a through hole in addition, one is used to ventilate and device that can automatic shutter is positioned at the through hole upper end and is fixedly connected on casing, the air extractor vent that to be located at originally like this on the fuel lid changes on the casing of being located at fuel tank, utilize the roomy space of oil box end face that this device is set, and this device can be communicated with by breather pipe with the purifying processing device that is arranged on other position of car body, to solve the purifying treatment difficult problem of the gasoline vapor discharging in the built-in fuel tank, reduce the exhaust emission of motor bike.The described device that is used to ventilate and can automatic shutter comprises valve body and lid, breather pipe is set on the lid is communicated with, so just solved on the fuel lid of prior art the difficult problem that breather pipe is introduced gasoline vapor purifying processing device can not be set at all with purifying processing device.Be communicated with purifying processing device by on the lid of the device that is provided on the casing of fuel tank ventilating and can automatic shutter, breather pipe being set, can not influence the normal use and the safety of fuel lid.Valve body is fixedly connected on below the lid, and valve body lower portion is provided with the downward valve seat of accent, and an air extractor vent is positioned at the valve pocket top, one ball spool places valve pocket, apart from the valve pocket top displacement degree of freedom is arranged, sealed by bottom at the bottom of the valve pocket, the valve seat sidewall is provided with pore and communicates with cabinets cavity.Like this, when motor bike is in normal working, ball spool by gravity leaves the valve pocket top, the device that is used in ventilation and energy automatic shutter is in opening, air outside can enter in the fuel tank through the pore of air extractor vent, valve pocket and valve seat sidewall, makes air pressure and atmosphere in the fuel tank keep balance; Simultaneously, behind the engine shutdown, the gasoline vapor in the fuel tank also can enter purifying processing device through pore, valve pocket, air extractor vent, the breather pipe of valve seat sidewall, is discharging after purifying treatment.In case motor bike generation rollover situation, the ball spool is blocked air extractor vent with rollover roll displacement to valve pocket top, closes this valve, the interior gasoline of fuel tank can not leaked into along air extractor vent destroy cleaning treatment medium in the purifying processing device.After setting upright motor bike again, the ball spool again can the by gravity self-return, opens air extractor vent, recovers ventilation.
The invention will be further described below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a partial cutaway schematic of the present invention;
In the accompanying drawing, 1 is casing, and 2 is packing seal, 3 devices for being used to ventilate and can automatic shutter, 3a is a lid, and 4 is the ball spool, and 5 is valve body, 5a is the air-flow cushion chamber, and 5b is a valve seat, and 5c is an air extractor vent, 5d is a pore, and 5e is a valve pocket, and 6 is bottom, 6a is a through hole, and 7 is bolt, and 8 is screw, 9 is fuel lid, and 10 is breather pipe, and 11 is through hole.
The specific embodiment
Referring to Fig. 1, Fig. 2, be stamped fuel lid 9 at the oil filling port of the built-in fuel tank of two-wheeled motor vehicle, the top end face of the casing 1 of fuel tank is established a through hole 11 in addition, and this through hole 11 is located at the extreme higher position on casing 1 top, makes it be in the liquid level that is higher than gasoline in the case all the time.One is used to ventilate and device 3 that can automatic shutter is positioned at through hole 12 upper ends and is fixedly connected on casing 1.The described device 3 that is used to ventilate and can automatic shutter comprises valve body 5 and lid 3a, valve body 5 is fixedly connected on below the lid, valve body 5 tops are provided with air-flow cushion chamber 5a, valve body lower portion is provided with the downward valve seat 5b of accent, one air extractor vent 5c is positioned at the valve pocket top of valve seat 5b, valve pocket 5b is communicated with air-flow cushion chamber 5a, and a ball spool 4 places valve pocket 5b, and the displacement degree of freedom in certain interval space is arranged apart from the valve pocket top.The cross-sectional plane of described valve pocket 5e is a square, and valve pocket 5e top is the spherical arc shape, and is identical with the cambered surface of ball spool 4, ball spool 4 can be adjacent to valve pocket 5e top form sealing, and air extractor vent 5c is a circular hole, is positioned at center, valve pocket 5e top.Valve seat 5b sidewall is provided with one or more spilehole 5d and communicates with casing 1 inner chamber,, these spileholes 5d, valve pocket 5e, air extractor vent 5c form venting channels casing 1 inner chamber are communicated with air-flow cushion chamber 5a.By bottom 6 sealings, ball spool 4 can not dropped out from valve pocket at the bottom of the valve pocket 5e.The diameter of ball spool 4 is approximately less than the width of valve pocket 5e, but be far longer than the diameter of air extractor vent 5c, make its can be in valve pocket 5e sway, can only be along valve pocket 5e upper and lower displacement, the air extractor vent 5c at maintenance and valve pocket 5e top is on same axis, and assurance ball spool 4 can be blocked air extractor vent 5c after the displacement of valve pocket 5e top-direction.Described ball spool 4 adopts steel ball or baton round etc. all can reach same effect.Breather pipe 10 is set on the lid 3a is communicated with purifying processing device (not shown) on the airfilter that is installed in driving engine, breather pipe 10 and lid 3a adopt welding, bonding or be threaded and all can reach effect same.Described lid 3a has mouthful downward cavity of end, and valve body 5 is arranged in cavity, captives joint by bolt 7 with lid 3a.The bolt 7 of described captive joint valve body 5 and lid 3a adopts three, is in triangular distribution, and all passes bottom 6, valve body 5, lid 3a at the bottom of the valve body lower portion closeding valve cavity 5e, and attaching nut press-fits connection with the three and tightly is fixed together.The position of departing from valve seat 5b on the bottom 6 is provided with the through hole 6a of ventilation, communicates with valve seat 5b cavity on every side.The lid 3a of the described device 3 that is used to ventilate and can automatic shutter is fixedly connected on casing 1 by a plurality of screws 8, and the joint gap between lid 3a and the casing 1 seals with packing seal 2.
The present invention not only is confined to the foregoing description, and described valve body 5 also can adopt the mouth that is threaded in lid 3a to hold in the downward cavity.The lid 3a of the described device 3 that is used to ventilate and can automatic shutter also can fix with through hole 12 screws thread fit of casing 1 top end face, and the joint gap between lid 3a and the casing 1 seals with packing seal 2.
Claims (9)
1. the built-in fuel tank of the anti-air extractor vent leakage of oil of a two-wheeled motor vehicle, be included in oil filling port and be stamped the fuel tank of fuel lid, it is characterized in that: the top end face of the casing of fuel tank is established a through hole in addition, one is used to ventilate and device that can automatic shutter is positioned at the through hole upper end and is fixedly connected on casing, the described device that is used to ventilate and can automatic shutter comprises valve body and lid, valve body is fixedly connected on below the lid, valve body lower portion is provided with the downward valve seat of accent, one air extractor vent is positioned at the valve pocket top of valve seat, one ball spool places valve pocket, apart from the valve pocket top displacement degree of freedom is arranged, seal by bottom at the bottom of the valve pocket, the valve seat sidewall is provided with pore and communicates with cabinets cavity, breather pipe is set on the lid is communicated with purifying processing device.
2. the built-in fuel tank of the anti-air extractor vent leakage of oil of two-wheeled motor vehicle according to claim 1 is characterized in that: the cross-sectional plane of described valve pocket is square, and air extractor vent is a circular hole, is positioned at center, valve pocket top.
3. the built-in fuel tank of the anti-air extractor vent leakage of oil of two-wheeled motor vehicle according to claim 2, it is characterized in that: described valve pocket top is the spherical arc shape.
4. prevent the built-in fuel tank of air extractor vent leakage of oil according to the arbitrary described two-wheeled motor vehicle of claim 1～3, it is characterized in that: described valve body top is provided with the air-flow cushion chamber, air-flow cushion chamber and valve pocket are communicated with by air extractor vent, and the air-flow cushion chamber is communicated with purifying processing device by breather pipe.
5. the built-in fuel tank of the anti-air extractor vent leakage of oil of two-wheeled motor vehicle according to claim 1 is characterized in that: described lid has mouthful downward cavity of end, and valve body is arranged in cavity, is bolted to connection with lid.
6. the built-in fuel tank of the anti-air extractor vent leakage of oil of two-wheeled motor vehicle according to claim 1 is characterized in that: described lid has mouthful downward cavity of end, and valve body is threaded in the cavity of lid.
7. the built-in fuel tank of the anti-air extractor vent leakage of oil of two-wheeled motor vehicle according to claim 1 is characterized in that: the described device that is used to ventilate and can automatic shutter is connected and fixed by lid and casing.
8. according to the built-in fuel tank of claim 1 or 6, the anti-air extractor vent leakage of oil of 7 described two-wheeled motor vehicles, it is characterized in that: described lid is connected on the casing by a plurality of screw retention, is provided with packing seal between lid and the casing.
9. according to the built-in fuel tank of claim 1 or 6, the anti-air extractor vent leakage of oil of 7 described two-wheeled motor vehicles, it is characterized in that: the through hole whorl of described lid and casing top end face is fixedly connected, and is provided with packing seal between lid and the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100930848A CN101177156A (en) | 2007-11-30 | 2007-11-30 | Inner concealed oil cell of two-wheel motorcycle preventing ventilation hole from spilling oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100930848A CN101177156A (en) | 2007-11-30 | 2007-11-30 | Inner concealed oil cell of two-wheel motorcycle preventing ventilation hole from spilling oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101177156A true CN101177156A (en) | 2008-05-14 |
Family
ID=39403620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100930848A Pending CN101177156A (en) | 2007-11-30 | 2007-11-30 | Inner concealed oil cell of two-wheel motorcycle preventing ventilation hole from spilling oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101177156A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811534A (en) * | 2009-02-25 | 2010-08-25 | 力帆实业(集团)股份有限公司 | Fuel leakage resistance device of motorcycle fuel tank lock |
| CN104481761A (en) * | 2014-11-12 | 2015-04-01 | 重庆峰瑞塑料制品有限公司 | Exhaust system for common oil tank |
-
2007
- 2007-11-30 CN CNA2007100930848A patent/CN101177156A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811534A (en) * | 2009-02-25 | 2010-08-25 | 力帆实业(集团)股份有限公司 | Fuel leakage resistance device of motorcycle fuel tank lock |
| CN101811534B (en) * | 2009-02-25 | 2012-12-26 | 力帆实业(集团)股份有限公司 | Fuel leakage resistance device of motorcycle fuel tank lock |
| CN104481761A (en) * | 2014-11-12 | 2015-04-01 | 重庆峰瑞塑料制品有限公司 | Exhaust system for common oil tank |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080514 |