CN102797563B - Petrol engine with underneath type oil tank - Google Patents
Petrol engine with underneath type oil tank Download PDFInfo
- Publication number
- CN102797563B CN102797563B CN201210310219.2A CN201210310219A CN102797563B CN 102797563 B CN102797563 B CN 102797563B CN 201210310219 A CN201210310219 A CN 201210310219A CN 102797563 B CN102797563 B CN 102797563B
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- Prior art keywords
- fuel tank
- boss
- back side
- side plate
- front side
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Abstract
The invention discloses a petrol engine with an underneath type oil tank. A base (1) is used for wrapping an oil tank (2), and consists of a bottom plate (1a), a front side plate (1b) and a back side plate (1c); a screw inserted from front to back passes through a via hole on a front side plate support lug (1d), an installation hole on a pull disk positioning stage (31) and an assembly hole on an oil tank positioning block (21) for fixedly connecting the front side plate support lug (1d), the pull disk positioning stage (31) and the oil tank positioning block (21) together; and a screw inserted from bottom to top passes through an assembly hole on a back side plate boss (1e) and a via hole on an oil tank platform (22) and extends into an installation hole of a crankcase positioning rod (41) for fixedly connecting the back side plate boss (1e), the oil tank platform (22) and the crankcase positioning rod (41) together. The weight of the entire petrol engine is supported through the base, so that the supporting stability is high, deformation or wear of an oil tank can be prevented effectively, the service life of the oil tank is prolonged effectively, and the safety of the oil tank is enhanced effectively.
Description
Technical field
The invention belongs to technology of gasoline engine field, specifically, particularly a kind of fuel tank underneath type petrol engine.
Background technique
At present, the miniature gasoline engines such as 139F generally adopt fuel tank underneath type structure, that is: fuel tank is positioned at the lowermost end of machine, are supported the weight of whole machine by fuel tank.Because fuel tank is working of plastics, the intensity of itself is limited, and not wear-resisting, and fuel tank directly contacts with ground, is subject to the impact of complete machine operation vibration in long-term use, and fuel tank easily deforms or weares and teares, and the working life of fuel tank is shorter.Once fuel tank damage can cause fuel leakage, not only waste fuel oil, befouling environment, and there is the potential safety hazards such as inflammable and explosive.Meanwhile, supported the weight of whole machine by fuel tank, stability is also poor.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of fuel tank underneath type petrol engine that can effectively prevent that fuel tank from damaging.
Technological scheme of the present invention is as follows: a kind of fuel tank underneath type petrol engine, comprise base (1), fuel tank (2), pulling plate (3) and crankcase (4), installed in front pulling plate (3) at crankcase (4), the bottom of crankcase (4) arranges fuel tank (2), fuel tank (2) two positioning blocks (21) above respectively with pulling plate (3) on two positioning tables (31) fit, fuel tank (2) two platforms (22) below lay respectively at the below of two locating columns (41) on crankcase (4), being provided with base (1) catches fuel tank (2), this base (1) is flat " U " shape, by base plate (1a), front side plate (1b) and back side panel (1c) form, two ends, left and right at front side plate (1b) top are symmetrically arranged with journal stirrup (1d), this journal stirrup (1d) is corresponding one by one with the positioning table (31) in pulling plate (3), and journal stirrup (1d) is upper offers via hole along fore-and-aft direction, the screw wearing is from front to back through the via hole on front side plate journal stirrup (1d), pilot hole on mounting hole on pulling plate positioning table (31) and fuel tank positioning block (21), by front side plate journal stirrup (1d), pulling plate positioning table (31) and fuel tank positioning block (21) are fixed together, the front end of the bottom of described front side plate (1b) and base plate (1a) is fixedly linked, the bottom of the rear end of base plate (1a) and back side panel (1c) is fixedly linked, two ends, left and right at described back side panel (1c) top are symmetrically arranged with boss (1e), this boss (1e) is rearward outstanding, two boss (1e) lay respectively at the below of two platforms (22) on fuel tank (2), and offer along the vertical direction pilot hole on boss (1e), the screw wearing is from the bottom up successively through the pilot hole on back side panel boss (1e), via hole on fuel tank platform (22), and extend in the mounting hole of crankcase locating column (41), by back side panel boss (1e), fuel tank platform (22) and crankcase locating column (44) are fixed together.
The present invention arranges base in the bottom of fuel tank, does not change the original structure of petrol engine, and ingeniously utilizes the mounting structure between fuel tank and pulling plate and crankcase to assemble, and not only assembling is simple, convenient, and the soundness connecting is good, can not occur loosening or come off.Base is flat " U " shape, this base catches fuel tank from the bottom up, the weight of whole machine is supported by base, avoided fuel tank directly to contact with ground, can effectively prevent that fuel tank from deforming or wearing and tearing, fuel tank can not be subject to the impact of complete machine operation vibration and be damaged, and has both improved the Security that fuel tank is used, and has greatly extended again the working life of fuel tank.Base is flat-bottom structure, large with the area of contact on ground like this, supports the good stability of whole machine.
Between two boss (1e) on described back side panel (1c), be provided with riser (1f), this riser (1f) is extended and is formed by the middle part of back side panel (1c) one that makes progress, between described riser (1f) and boss (1e), there is gap, and the end face of riser (1f) is higher than the end face of described boss (1e), and the end face of riser (1f) is positioned at the below of the circular convex closure of crankcase (4).Above structure can strengthen the structural strength of back side panel on the one hand, and on the other hand, riser is positioned at the below at the circular convex closure of crankcase place, plays supplemental support, further to improve the stability that supports whole machine.
The end face of described riser (1f) is concave arc shape.The circular convex closure of the shape of riser end face and crankcase adapts, and the so not only better effects if of supplemental support, and riser is combined closely with the circular convex closure of crankcase, has more in appearance aesthetic feeling.
Between described front side plate (1b) and base plate (1a), have the angle of 110-120 °, described journal stirrup (1d) vertically arranges.Above structure can either guarantee that understructure is small and exquisite, can avoid again the corresponding part of front side plate and fuel tank to interfere; Meanwhile, the corresponding part of the adjacent fuel tank of front side plate, makes the combination of base and fuel tank compacter.
In order to facilitate manufacturing, reduce production costs, described base plate (1a), front side plate (1b), back side panel (1c), journal stirrup (1d) and boss (1e) are by injection moulding global formation.
In order to increase structural strength, prevent that base from deforming or wearing and tearing, on described base plate (1a), front side plate (1b) and back side panel (1c), be distributed with stiffening rib.
Beneficial effect: the present invention supports the weight of whole petrol engine by base, the good stability not only supporting, and can effectively prevent fuel tank distortion or wearing and tearing, the working life and the Security that have effectively improved fuel tank; The present invention does not change the original structure of petrol engine, and utilizes existing mounting structure on petrol engine to assemble, and dismounting is not only convenient but also quick.
Accompanying drawing explanation
Fig. 1 is stereogram of the present invention.
Fig. 2 is rear view of the present invention.
Fig. 3 is the structural representation of base.
Fig. 4 is the rear view of Fig. 3.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the present invention consists of base 1, fuel tank 2, pulling plate 3 and crankcase 4 etc.Wherein, base 1 is by injection moulding global formation, and material is preferably PP plastics.Base 1 is flat " U " shape, base plate 1a, front side plate 1b and back side panel 1c, consists of, and described front side plate 1b is positioned at the place ahead of base plate 1a, and the bottom of this front side plate 1b and the front end of base plate 1a are connected as a single entity.Between front side plate 1b and base plate 1a, have the angle of 110-120 °, the concrete large I of this angle is determined according to actual needs.Two ends, left and right at described front side plate 1b top are symmetrically arranged with journal stirrup 1d, and this journal stirrup 1d vertically arranges, and the top of the bottom of journal stirrup 1d and front side plate 1b is connected as a single entity, and each journal stirrup 1d is upper offers via hole along fore-and-aft direction.
As shown in Figure 3, Figure 4, back side panel 1c is positioned at the rear of base plate 1a, and this back side panel 1c and base plate 1a are perpendicular, and the rear end of the bottom of back side panel 1c and base plate 1a is connected as a single entity.Two ends, left and right at described back side panel 1c top are symmetrically arranged with boss 1e, this boss 1e is rearward outstanding, the top of boss 1e and back side panel 1c is connected as a single entity, and the end face of boss 1e and bottom surface are the plane being parallel to each other, and offers along the vertical direction pilot hole on boss 1e.Between two boss 1e, be provided with riser 1f, this riser 1f is extended and is formed by the middle part of the back side panel 1c one that makes progress, and between described riser 1f and boss 1e, has gap, and the end face of riser 1f is higher than the end face of described boss 1e, and the end face of riser 1f is concave arc shape.In order to increase structural strength, prevent distortion, on described base plate 1a, front side plate 1b and back side panel 1c, be distributed with stiffening rib, the form that arranges of stiffening rib can be determined according to actual needs.
As shown in Figure 1, Figure 2 and in conjunction with shown in Fig. 3, Fig. 3, pulling plate 3 is installed on the front side of crankcase 4, in the bottom of crankcase 4, fuel tank 2 is set, this fuel tank 2 be fixed with above two symmetrical positioning blocks, these two positioning blocks 21 respectively with pulling plate 3 on two positioning tables 31 fit.After fuel tank 2, be fixed with two symmetrical platforms 22, these two platforms 22 lay respectively at the below of two locating columns 41 on crankcase 4.Described base 1 catches fuel tank 2, two journal stirrup 1d on base front side plate 1b and fuel tank 2 two positioning blocks 21 and two positioning tables 31 in petrol engine pulling plate 3 are above corresponding, the screw wearing from front to back, through via hole, the mounting hole on pulling plate positioning table 31 and the pilot hole on fuel tank positioning block 21 on front side plate journal stirrup 1d, is fixed together front side plate journal stirrup 1d, pulling plate positioning table 31 and fuel tank positioning block 21.Two boss 1e on base back side panel 1c lay respectively at the below of two platforms 22 on fuel tank 2, and two boss 1e and fuel tank 2 two platforms 22 and two locating columns 41 on crankcase 4 are below corresponding, the screw wearing is from the bottom up successively through the pilot hole on back side panel boss 1e, the via hole on fuel tank platform 22, and extend in the mounting hole of crankcase locating column 41, back side panel boss 1e, fuel tank platform 22 and crankcase locating column 44 are fixed together.All the other structures of the present invention are same as the prior art, and therefore not to repeat here.
Claims (6)
1. a fuel tank underneath type petrol engine, installed in front pulling plate (3) at crankcase (4), the bottom of crankcase (4) arranges fuel tank (2), fuel tank (2) two positioning blocks (21) above respectively with pulling plate (3) on two positioning tables (31) fit, fuel tank (2) two platforms (22) below lay respectively at the below of two locating columns (41) on crankcase (4), it is characterized in that: be provided with base (1) fuel tank (2) is caught, this base (1) is flat " U " shape, by base plate (1a), front side plate (1b) and back side panel (1c) form, two ends, left and right at front side plate (1b) top are symmetrically arranged with journal stirrup (1d), this journal stirrup (1d) is corresponding one by one with the positioning table (31) in pulling plate (3), and journal stirrup (1d) is upper offers via hole along fore-and-aft direction, the screw wearing is from front to back through the via hole on front side plate journal stirrup (1d), pilot hole on mounting hole on pulling plate positioning table (31) and fuel tank positioning block (21), by front side plate journal stirrup (1d), pulling plate positioning table (31) and fuel tank positioning block (21) are fixed together, the front end of the bottom of described front side plate (1b) and base plate (1a) is fixedly linked, the bottom of the rear end of base plate (1a) and back side panel (1c) is fixedly linked, two ends, left and right at described back side panel (1c) top are symmetrically arranged with boss (1e), this boss (1e) is rearward outstanding, two boss (1e) lay respectively at the below of two platforms (22) on fuel tank (2), and offer along the vertical direction pilot hole on boss (1e), the screw wearing is from the bottom up successively through the pilot hole on back side panel boss (1e), via hole on fuel tank platform (22), and extend in the mounting hole of crankcase locating column (41), by back side panel boss (1e), fuel tank platform (22) and crankcase locating column (44) are fixed together.
2. fuel tank underneath type petrol engine according to claim 1, it is characterized in that: between two boss (1e) on described back side panel (1c), be provided with riser (1f), this riser (1f) is extended and is formed by the middle part of back side panel (1c) one that makes progress, between described riser (1f) and boss (1e), there is gap, and the end face of riser (1f) is higher than the end face of described boss (1e), and the end face of riser (1f) is positioned at the below of the circular convex closure of crankcase (4).
3. fuel tank underneath type petrol engine according to claim 2, is characterized in that: the end face of described riser (1f) is concave arc shape.
4. fuel tank underneath type petrol engine according to claim 1, is characterized in that: between described front side plate (1b) and base plate (1a), have the angle of 110-120 °, described journal stirrup (1d) vertically arranges.
5. according to the fuel tank underneath type petrol engine described in claim 1 or 2 or 3 or 4, it is characterized in that: described base plate (1a), front side plate (1b), back side panel (1c), journal stirrup (1d) and boss (1e) are by injection moulding global formation.
6. fuel tank underneath type petrol engine according to claim 1, is characterized in that: on described base plate (1a), front side plate (1b) and back side panel (1c), be distributed with stiffening rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210310219.2A CN102797563B (en) | 2012-08-28 | 2012-08-28 | Petrol engine with underneath type oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210310219.2A CN102797563B (en) | 2012-08-28 | 2012-08-28 | Petrol engine with underneath type oil tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102797563A CN102797563A (en) | 2012-11-28 |
| CN102797563B true CN102797563B (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210310219.2A Expired - Fee Related CN102797563B (en) | 2012-08-28 | 2012-08-28 | Petrol engine with underneath type oil tank |
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| Country | Link |
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| CN (1) | CN102797563B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486411A (en) * | 2013-09-23 | 2014-01-01 | 浙江格林雅动力科技有限公司 | Supporting plate type base applied to numerical digital generator set |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1528915A (en) * | 1974-11-21 | 1978-10-18 | Dawson A | Motorcycle frames |
| JP2005112288A (en) * | 2003-10-10 | 2005-04-28 | Nissan Motor Co Ltd | Fuel tank mount frame structure |
| JP4466998B2 (en) * | 2004-06-01 | 2010-05-26 | 本田技研工業株式会社 | Fuel tank support structure for forced air cooling engine |
| CN200961511Y (en) * | 2006-09-25 | 2007-10-17 | 什邡瑞邦机械有限责任公司 | Gasoline engine for vibration machine |
| CN100427749C (en) * | 2006-10-11 | 2008-10-22 | 力帆实业(集团)股份有限公司 | Bottom oil tank type universal gasoline engine |
| CN202768161U (en) * | 2012-08-28 | 2013-03-06 | 力帆实业(集团)股份有限公司 | Gasoline engine |
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2012
- 2012-08-28 CN CN201210310219.2A patent/CN102797563B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN102797563A (en) | 2012-11-28 |
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| C10 | Entry into substantive examination | ||
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Address after: 400037 Chongqing city Beibei District caijiagang Zhen Tong Xing Industrial Park Fengqi Road No. 16 Patentee after: Lifan Industry (Group) Co., Ltd. Address before: 400037 Chongqing city Shapingba District No. 60 Zhangjiawan Bridge Patentee before: Lifan Industry (Group) Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20200828 |
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| CF01 | Termination of patent right due to non-payment of annual fee |