CN200949496Y - Engine oil tank cap of small tiller - Google Patents
Engine oil tank cap of small tiller Download PDFInfo
- Publication number
- CN200949496Y CN200949496Y CN 200620111250 CN200620111250U CN200949496Y CN 200949496 Y CN200949496 Y CN 200949496Y CN 200620111250 CN200620111250 CN 200620111250 CN 200620111250 U CN200620111250 U CN 200620111250U CN 200949496 Y CN200949496 Y CN 200949496Y
- Authority
- CN
- China
- Prior art keywords
- piston
- suction port
- air
- sealing rubber
- rubber pad
- 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 - Lifetime
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Abstract
The utility model discloses an oil tank cover for the micro-cultivator comprising a cover body, a reverberation gasket, filtration foam cotton and a seal rubber bearing. A check valve which only allows in the air outward is arranged on the seal rubber bearing. The shell body of the check valve and the seal rubber bearing are connected into an integration. When the utility model is in use, the air outward can enter the oil tank through the check valve, while the air and fuel in the oil tank can not be discharged through the check valve thus thoroughly avoiding the phenomenon of fuel leakage and increasing the working reliability of the product.
Description
Technical field
The utility model relates to a kind of fuel tank cap, is specifically related to a kind of microtilling machine engine oil case lid.
Background technique
The microtilling machine of prior art with the engine oil case lid as shown in Figure 1, it by lid 1, reverberate pad 2, filter foam cotton 3 and sealing rubber pad 4 four parts and constitute.Be provided with vent grooves 8 at lid 1 inwall, reverberate pad 2 and cover on lid bottom, be provided with the vent 6 that is communicated with vent grooves reverberating pad 2 centers.Sealing rubber pad 4 centers are a pit 7, and filter foam cotton 3 places pit 7, and pit 7 bottoms are provided with the air intercommunication on vent 6 and the pasta equally.The filter foam cotton is used to filter the dust in air that enters fuel tank by fuel tank cap, to keep the fuel oil cleaning.The system of reverberating pad 2, filter foam cotton 3 and sealing rubber pad 4 formations is called respiratory system, after fuel tank cap is installed on the fuel tank, vent 6 on the sealing rubber pad 4, vent 6 and the vent grooves on the lid 18 reverberated on the pad 2 form air passageways, the main effect of air passageways is to be communicated with fuel tank and outside atmosphere, constantly keep the air pressure in the fuel tank to equate with external atmosphere pressure, like this, the fuel oil in the fuel tank could constantly enter combustion system.Because easy run-off the straight when the working environment of microtilling machine has determined its work, beat, and air communicates fully with ambient atmosphere in the fuel tank, the atmosphere of outside can freely enter fuel tank, air in the fuel tank also can freely be discharged to ambient atmosphere, and Just because of this, microtilling machine is when run-off the straight, beat, pasta can vibrate, fluctuate, when this vibration, when fluctuating range is excessive, fuel oil will spill into outside the fuel tank cap by air passageways in the fuel tank, and oil leakage phenomenon takes place.Owing to have the leakage of oil defective, the cotton also tool oil suction effect simultaneously of above-mentioned filter foam.
Summary of the invention
At existing microtilling machine in the deficiency that tilts, there is leakage of oil in the engine oil case lid during beat, the engine oil case lid that a kind of microtilling machine significantly tilts even the purpose of this utility model provides, beat can leakage of oil yet.
The technical solution of the utility model is achieved in that a kind of microtilling machine engine oil case lid, comprise lid, reverberate pad, filter foam cotton and sealing rubber pad, be provided with the one-way valve that only enters for ambient air on sealing rubber pad, check-valve body and sealing rubber pad are connected as a single entity.
Further improve and be: described check-valve body has a suction port and an air outlet, be provided with the piston of a spring and an end tep reel in the cavity between suction port and air outlet, be with leather cup on the piston, piston enters in the suction port and is slidingly matched with it, piston is provided with the intake duct with suction port and the connection of housing cavity, the piston plate diameter is less than cavity diameter, spring one end withstands on the piston plate, the other end withstands on the housing, under spring action, leather cup week is along covering on the housing around the suction port.
The utility model is owing to be provided with one-way valve on sealing rubber pad, ambient air can enter fuel tank by one-way valve, and air and fuel oil in the fuel tank can not be discharged by one-way valve, thereby have thoroughly solved the fuel oil phenomenon that leaks outside, and have improved the product functional reliability.
Description of drawings
Fig. 1-existing microtilling machine engine oil case lid structural representation;
Fig. 2-the utility model structural representation;
Fig. 3-one-way valve structures schematic representation.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 2, from the figure as can be seen, the utility model comprises lid 1, reverberates pad 2, filter foam cotton 3 and sealing rubber pad 4, is provided with the one-way valve 5 that only enters for ambient air on sealing rubber pad 4, and check-valve body 53 and sealing rubber pad 4 are connected as a single entity.Because one-way valve can stop interior air of fuel tank and fuel oil to overflow, like this, with regard to the thorough fuel leakage problem that solved.
The present embodiment one-way valve adopts following structure, sees Fig. 3: check-valve body 53 has a suction port 51 and an air outlet 52, and suction port 51 is communicated with the pit of sealing rubber pad 4, and fuel tank is stretched in the air outlet.Be provided with the piston 55 of a spring 54 and an end tep reel in the cavity 59 between suction port 51 and air outlet 52, be with leather cup 56 on the piston 55, piston 55 enters in the suction port 51 and is slidingly matched with it, piston 55 is provided with the intake duct 57 with suction port 51 and 59 connections of housing cavity, piston plate 58 diameters are less than cavity 59 diameters, and spring 54 1 ends withstand on the piston plate 58, and the other end withstands on the housing 53, under spring action, 56 weeks of leather cup are along covering on the housing 53 around the suction port.The working principle of one-way valve is: when fuel oil constantly offers combustion system of engine, oil mass reduces and forms negative pressure in the fuel tank, ambient air overcame acting force of the spring and pushed piston open this moment, leather cup on the piston together is open, gas-entered passageway on the piston be communicated with cavity and and then with pasta on air communication, ambient air enters fuel tank, till inside and outside air pressure balance.And under normal conditions, because acting force of the spring, leather cup is buckled in and on the housing gas-entered passageway on the piston and the air on the pasta is cut off, and air and fuel oil can't be discharged in the fuel tank.When pasta vibration, fluctuation, in producing, fuel tank presses, and leather cup is buckled tightly more, and fuel oil can't be discharged more, has fundamentally solved the leakage of oil problem.
Claims (2)
1, a kind of microtilling machine engine oil case lid, comprise lid (1), reverberate pad (2), filter foam cotton (3) and sealing rubber pad (4), it is characterized in that: be provided with the one-way valve (5) that only enters for ambient air on sealing rubber pad (4), check-valve body (53) is connected as a single entity with sealing rubber pad (4).
2, microtilling machine according to claim 1 engine oil case lid, it is characterized in that: described check-valve body (53) has a suction port (51) and an air outlet (52), be provided with the piston (55) of a spring (54) and an end tep reel (58) in the cavity (59) between suction port (51) and air outlet (52), be with leather cup (56) on the piston (55), piston (55) enters in the suction port (51) and is slidingly matched with it, piston (55) is provided with the intake duct (57) with suction port (51) and housing cavity (59) connection, piston plate (58) diameter is less than cavity (59) diameter, spring (54) one ends withstand on the piston plate (58), the other end withstands on the housing (53), under spring action, leather cup (56) week is along covering on the housing (53) around the suction port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620111250 CN200949496Y (en) | 2006-08-30 | 2006-08-30 | Engine oil tank cap of small tiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620111250 CN200949496Y (en) | 2006-08-30 | 2006-08-30 | Engine oil tank cap of small tiller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200949496Y true CN200949496Y (en) | 2007-09-19 |
Family
ID=38892038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620111250 Expired - Lifetime CN200949496Y (en) | 2006-08-30 | 2006-08-30 | Engine oil tank cap of small tiller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200949496Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269599A (en) * | 2017-06-30 | 2017-10-20 | 安徽江淮汽车集团股份有限公司 | It is dynamic to turn oil can cap assembly |
-
2006
- 2006-08-30 CN CN 200620111250 patent/CN200949496Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269599A (en) * | 2017-06-30 | 2017-10-20 | 安徽江淮汽车集团股份有限公司 | It is dynamic to turn oil can cap assembly |
| CN107269599B (en) * | 2017-06-30 | 2018-09-11 | 安徽江淮汽车集团股份有限公司 | Turn oil can cap assembly |
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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: CHONGQING HESHENG INDUSTRY CO., LTD. Assignor: Chen Ken Contract record no.: 2010500000059 Denomination of utility model: Engine oil tank cap of small tiller Granted publication date: 20070919 License type: Exclusive License Record date: 20100916 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070919 |
|
| EXPY | Termination of patent right or utility model |