CN102797563A - Petrol engine with underneath type oil tank - Google Patents
Petrol engine with underneath type oil tank Download PDFInfo
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- CN102797563A CN102797563A CN2012103102192A CN201210310219A CN102797563A CN 102797563 A CN102797563 A CN 102797563A CN 2012103102192 A CN2012103102192 A CN 2012103102192A CN 201210310219 A CN201210310219 A CN 201210310219A CN 102797563 A CN102797563 A CN 102797563A
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- fuel tank
- boss
- side plate
- back side
- front side
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
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 the technology of gasoline engine field, specifically, particularly a kind of fuel tank underneath type petrol engine.
Background technique
At present, 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 entire machine by fuel tank.Because fuel tank is a working of plastics, the intensity of itself is limited, and not wear-resisting, and fuel tank directly contacts with ground, in long-term the use, receives the influence of complete machine work vibrations, and fuel tank deforms easily or weares and teares, and the working life of fuel tank is shorter.In case the fuel tank damage can cause fuel leakage, not only waste fuel oil, befouling environment, and have potential safety hazards such as inflammable and explosive.Simultaneously, support the weight of entire machine by fuel tank, stability is also relatively 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 prevent effectively that fuel tank from damaging.
Technological scheme of the present invention is following: a kind of fuel tank underneath type petrol engine; Comprise base (1), fuel tank (2), draw dish (3) and crankcase (4); Draw dish (3) in the installed in front of crankcase (4); The bottom of crankcase (4) is provided with fuel tank (2), and two positioning blocks (21) of fuel tank (2) front fit with drawing two positioning tables (31) on the dish (3) respectively, and two platforms (22) of fuel tank (2) back lay respectively at the below of two locating columns (41) on the crankcase (4); Being provided with base (1) catches fuel tank (2); This base (1) is flat " U " shape, is made up of base plate (1a), front side plate (1b) and back side panel (1c), and the right ends at front side plate (1b) top is symmetrically arranged with journal stirrup (1d); This journal stirrup (1d) is corresponding one by one with positioning table (31) on drawing dish (3); And journal stirrup (1d) upper edge fore-and-aft direction offers via hole, and the screw that wears from front to back passes via hole on the front side plate journal stirrup (1d), draw mounting hole and the pilot hole on the fuel tank positioning block (21) on the dish positioning table (31), with front side plate journal stirrup (1d), draw dish positioning table (31) and fuel tank positioning block (21) to be fixed together; The front end of the bottom of said 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; Right ends at said back side panel (1c) top is symmetrically arranged with boss (1e); This boss (1e) is rearward outstanding; Two boss (1e) lay respectively at the below of two platforms (22) on the fuel tank (2), and offer pilot hole along the vertical direction on the boss (1e), and the screw that wears from the bottom up passes the pilot hole on the back side panel boss (1e), the via hole on the fuel tank platform (22) successively; 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.
The present invention is provided with base in the bottom of fuel tank, does not change the original structure of petrol engine, and ingeniously utilizes fuel tank and draw the mounting structure between dish and the crankcase to assemble, and not only assembling is simple, convenient, and the soundness that connects is good, can not take place loosening or comes off.Base is flat " U " shape; This base catches fuel tank from the bottom up, and the weight of entire machine has avoided fuel tank directly to contact with ground by base support; Can prevent effectively that fuel tank from deforming or wear and tear; Fuel tank can not receive the influence of complete machine work vibrations and be damaged, and has both improved the Security that fuel tank uses, and has prolonged the working life of fuel tank again greatly.Base is a flat-bottom structure, and the area of contact with ground is big like this, supports the good stability of entire machine.
Between two boss (1e) on the said 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; Has the gap between said riser (1f) and the boss (1e); And the end face of riser (1f) is higher than the end face of said 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, supports the stability of entire machine with further raising.
The end face of said riser (1f) is a 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 combines closely to have more aesthetic feeling in appearance with the circular convex closure of crankcase.
The angle that has 110-120 ° between said front side plate (1b) and the base plate (1a), said journal stirrup (1d) vertically is provided with.Above structure can either guarantee that understructure is small and exquisite, can avoid the counterpart of front side plate and fuel tank to interfere again; Simultaneously, the counterpart of the adjacent fuel tank of front side plate, make base and fuel tank combine compacter.
Manufacturing for ease reduces production costs, and said base plate (1a), front side plate (1b), back side panel (1c), journal stirrup (1d) and boss (1e) are through the injection moulding global formation.
In order to increase structural strength, prevent that base from deforming or wear and tear, and is distributed with stiffening rib on said base plate (1a), front side plate (1b) and back side panel (1c).
Beneficial effect: the present invention supports the weight of whole petrol engine through base, the good stability that not only supports, 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 that existing mounting structure assembles on the petrol engine, and dismounting is not only convenient but also quick.
Description of drawings
Fig. 1 is a stereogram of the present invention.
Fig. 2 is a 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 accompanying drawing and embodiment the present invention is described further:
Like Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, the present invention by base 1, fuel tank 2, draw dish 3 and crankcase 4 etc. to constitute.Wherein, base 1 is through the injection moulding global formation, and material is preferably the PP plastics.Base 1 is flat " U " shape, is made up of base plate 1a, front side plate 1b and back side panel 1c, and said 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.The angle that has 110-120 ° between front side plate 1b and the base plate 1a, the concrete big I of this angle is confirmed according to actual needs.Right ends at said front side plate 1b top is symmetrically arranged with journal stirrup 1d, and this journal stirrup 1d vertically is provided with, 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 upper edge fore-and-aft direction offers via hole.
Like Fig. 3, shown in 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.Right ends at said back side panel 1c top is 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 that is parallel to each other, and on boss 1e, offers pilot hole along the vertical direction.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 has the gap between said riser 1f and the boss 1e, and the end face of riser 1f is higher than the end face of said boss 1e, and the end face of riser 1f is a concave arc shape.In order to increase structural strength, prevent distortion, on said base plate 1a, front side plate 1b and back side panel 1c, be distributed with stiffening rib, the form that is provided with of stiffening rib can be confirmed according to actual needs.
Like Fig. 1, Fig. 2 and combine Fig. 3, shown in Figure 3; Draw dish 3 to be installed on the front side of crankcase 4; In the bottom of crankcase 4 fuel tank 2 is set, the front of this fuel tank 2 is fixed with two symmetrical positioning blocks, and these two positioning blocks 21 fit with drawing two positioning tables 31 on the dish 3 respectively.Be fixed with two symmetrical platforms 22 in the back of fuel tank 2, these two platforms 22 lay respectively at the below of two locating columns 41 on the crankcase 4.Said base 1 catches fuel tank 2; Two positioning blocks 21 and the petrol engine of two journal stirrup 1d on the base front side plate 1b and fuel tank 2 fronts draw two positioning tables 31 on the dish 3 corresponding; The screw that wears from front to back passes via hole on the front side plate journal stirrup 1d, draw mounting hole and the pilot hole on the fuel tank positioning block 21 on the dish positioning table 31, with front side plate journal stirrup 1d, draw dish positioning table 31 and fuel tank positioning block 21 to be fixed together.Two boss 1e on the base back side panel 1c lay respectively at the below of two platforms 22 on the fuel tank 2; And two platforms 22 and two locating columns 41 on the crankcase 4 of two boss 1e and fuel tank 2 back are corresponding; The screw that wears from the bottom up passes the pilot hole on the back side panel boss 1e, the via hole on the fuel tank platform 22 successively; 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 identical with existing technology, do not give unnecessary details at this.
Claims (6)
1. fuel tank underneath type petrol engine; Draw dish (3) in the installed in front of crankcase (4); The bottom of crankcase (4) is provided with fuel tank (2), and two positioning blocks (21) of fuel tank (2) front fit with drawing two positioning tables (31) on the dish (3) respectively, and two platforms (22) of fuel tank (2) back lay respectively at the below of two locating columns (41) on the crankcase (4); It is characterized in that: be provided with base (1) fuel tank (2) is caught; This base (1) is flat " U " shape, is made up of base plate (1a), front side plate (1b) and back side panel (1c), and the right ends at front side plate (1b) top is symmetrically arranged with journal stirrup (1d); This journal stirrup (1d) is corresponding one by one with positioning table (31) on drawing dish (3); And journal stirrup (1d) upper edge fore-and-aft direction offers via hole, and the screw that wears from front to back passes via hole on the front side plate journal stirrup (1d), draw mounting hole and the pilot hole on the fuel tank positioning block (21) on the dish positioning table (31), with front side plate journal stirrup (1d), draw dish positioning table (31) and fuel tank positioning block (21) to be fixed together; The front end of the bottom of said 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; Right ends at said back side panel (1c) top is symmetrically arranged with boss (1e); This boss (1e) is rearward outstanding; Two boss (1e) lay respectively at the below of two platforms (22) on the fuel tank (2), and offer pilot hole along the vertical direction on the boss (1e), and the screw that wears from the bottom up passes the pilot hole on the back side panel boss (1e), the via hole on the fuel tank platform (22) successively; 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.
2. fuel tank underneath type petrol engine according to claim 1; It is characterized in that: between two boss (1e) on the said 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; Have the gap between said riser (1f) and the boss (1e), and the end face of riser (1f) is higher than the end face of said boss (1e), 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 said riser (1f) is a concave arc shape.
4. fuel tank underneath type petrol engine according to claim 1 is characterized in that: have 110-120 ° angle between said front side plate (1b) and the base plate (1a), said journal stirrup (1d) vertically is provided with.
5. according to claim 1 or 2 or 3 or 4 described fuel tank underneath type petrol engine, it is characterized in that: said base plate (1a), front side plate (1b), back side panel (1c), journal stirrup (1d) and boss (1e) are through the injection moulding global formation.
6. fuel tank underneath type petrol engine according to claim 1 is characterized in that: on said 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 true CN102797563A (en) | 2012-11-28 |
| CN102797563B 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN102797563B (en) |
Cited By (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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2551888A1 (en) * | 1974-11-21 | 1976-05-26 | Anthony Dawson | MOTORCYCLE FRAME |
| JP2005112288A (en) * | 2003-10-10 | 2005-04-28 | Nissan Motor Co Ltd | Fuel tank mount frame structure |
| JP2005344574A (en) * | 2004-06-01 | 2005-12-15 | Honda Motor Co Ltd | Fuel tank support structure in 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 |
-
2012
- 2012-08-28 CN CN201210310219.2A patent/CN102797563B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2551888A1 (en) * | 1974-11-21 | 1976-05-26 | Anthony Dawson | MOTORCYCLE FRAME |
| JP2005112288A (en) * | 2003-10-10 | 2005-04-28 | Nissan Motor Co Ltd | Fuel tank mount frame structure |
| JP2005344574A (en) * | 2004-06-01 | 2005-12-15 | Honda Motor Co Ltd | Fuel tank support structure in 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 |
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN102797563B (en) | 2014-03-26 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| CP02 | Change in the address of a patent holder |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20200828 |