CN208502901U - A kind of muffler outer hood on gasoline engine - Google Patents
A kind of muffler outer hood on gasoline engine Download PDFInfo
- Publication number
- CN208502901U CN208502901U CN201821079584.6U CN201821079584U CN208502901U CN 208502901 U CN208502901 U CN 208502901U CN 201821079584 U CN201821079584 U CN 201821079584U CN 208502901 U CN208502901 U CN 208502901U
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- Prior art keywords
- rib
- arc
- lengthways
- gasoline engine
- rod
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Abstract
The muffler outer hood that the utility model discloses a kind of on gasoline engine, polygonal bodies (2) including having multiple hollow holes (1), by more, the lateral rib (3) with spacing and lengthways of rod (4) are constituted the polygonal bodies (2) each other, it is provided with the arc-shaped rib (5) or/and rectangle rib (6) of integrally formed outwardly convex on the lateral rib or/and lengthways of rod, the width of the arc-shaped rib (5) and rectangle rib (6) is less than the width of transverse direction rib (3) and lengthways of rod (4).The utility model has the advantages that smart structural design, low in cost, use can block, it is not only able to effectively distribute the heat of silencer using it, it reduces air filter risk of distortion and reduces heat in fuel tank, but also be significantly reduced operator and surprisingly contact the scald of the large area caused by touching and continuous scald risk.
Description
Technical field
The utility model relates to a kind of muffler outer hood, especially a kind of muffler outer hood on gasoline engine.
Background technique
Currently, former according to " GB/T 15706-2012 Machinery safety design general rule-risk assessment and risk reduce " guidance
Then, when carrying out product development and design, it would be desirable to comprehensively consider and identification product security risk, and to identified risk into
The sufficient risk of row reduces, and the technical way that security risk reduces includes " design optimization is evaded " and " installs protection dress additional
It sets ".Exhaust apparatus of the silencer as gasoline engine, body surface temperature is very high, there is greatly scald security risk, general
Engine can only reduce scald risk by the technological means of " installing protective device additional " at present because its topology layout is limited.Together
When, general purpose engine application terminal is extensive, we are when carrying out engine development design, it is also necessary to comprehensively consider the end of engine
Hold suitability and products thereof regulation accordance.Main security risk control point of the silencer scald protection as gasoline engine, control
System require by multiple mandatory product safety regulations such as European Union, North America (such as: Europe superscript and international standard ISO EN 5395.1,
American Standard ANSI B71.3 etc.) consider and provides.
The silencer requirement of shelter of current clause of statute defined most stringent of in the world can be summarized as:
1. silencer and its guard assembly, accessible is more than 80 DEG C of metal surface and nonmetallic more than 90 DEG C
Material surface should be protected, and
2. to avoid and ensure more than temperature limit continuous surface area be less than or equal to 10 cm2.
In order to reach above-mentioned standard, it is provided with outer cover on existing universal petrol engine silencer, which is an iron
Skin shell is provided with some through-holes or through slot on iron sheet outer casing.Although the muffler outer hood of this structure can play isolation
The effect of heat, still, due to being limited by structure, component presentation quality is poor, and influences the service performance of engine, together
When also influence radiating efficiency；In some cases, it is easy to happen scald problem.
Utility model content
The purpose of this utility model is just to provide a kind of petrol engine muffler outer hood that can effectively reduce scald risk.
The purpose of this utility model is that technical solution in this way is realized, outside a kind of silencer on gasoline engine
Cover, the polygonal bodies including having multiple hollow holes, the polygonal bodies are by more each other with the horizontal bar of spacing
Item and lengthways of rod are constituted, and the circular arc of integrally formed outwardly convex is provided on the lateral rib or/and lengthways of rod
The width of shape rib or/and rectangle rib, the arc-shaped rib and rectangle rib is less than the width of lateral rib and lengthways of rod
Degree.
In order to further decrease contact area, the upper surface of the arc-shaped rib is higher than the upper table of the rectangle rib
Face.
In order to reduce continuous surface area, the intersection of the arc-shaped rib or/and rectangle rib is provided with circular arc
Convex closure.
Wherein, the upper surface of the circular arc convex closure is higher than the upper surface of the arc-shaped rib.
Further, the upper surface of the arc-shaped rib is at a distance from the upper surface of rectangle rib and described arc-shaped convex
The upper surface of packet is all larger than 2mm at a distance from the upper surface of arc-shaped rib.
In the present invention, in order to cooperate different types and make appearance more beautiful, the polygonal bodies
For diamond shape, triangle, rectangular or square.
By adopting the above-described technical solution, the utility model have smart structural design, it is low in cost, use what can be blocked
Advantage is not only able to effectively distribute the heat of silencer using it, reduces air filter risk of distortion and reduces oil
Heat in case, but also be significantly reduced operator and surprisingly contact the scald of the large area caused by touching and continuous scald risk.
Detailed description of the invention
The Detailed description of the invention of the utility model is as follows:
Fig. 1 is the first structural schematic diagram of the utility model；
Fig. 2 is second of structural schematic diagram of the utility model.
Specific embodiment
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing, but the utility model
These embodiments are not limited to, any improvement or substitution on the present embodiment essence spirit still falls within the utility model
Claim range claimed.
Embodiment 1: as shown in Figure 1, a kind of muffler outer hood on gasoline engine, including having multiple hollow holes 1
Polygonal bodies 2, the polygonal bodies 2 each other there is the lateral rib 3 of spacing and lengthways of rod 4 to constitute by more,
The arc-shaped rib 5 or/and rectangle rib of integrally formed outwardly convex are provided on the transverse direction rib or/and lengthways of rod
6, the width of the arc-shaped rib 5 and rectangle rib 6 is less than the width of lateral rib 3 and lengthways of rod 4.
In order to further decrease contact area, the upper surface of the arc-shaped rib 5 is higher than the upper table of the rectangle rib 6
Face.
Embodiment 2: a kind of muffler outer hood on gasoline engine, the polygonal bodies including having multiple hollow holes 1
2, the polygonal bodies 2 each other there is the lateral rib 3 of spacing and lengthways of rod 4 to constitute by more, in the horizontal bar
The upper surface of item 3 or/and lengthways of rod 4 is provided with arc-shaped rib 5/ and rectangle rib 6, the arc-shaped rib 5 and rectangle
The width of rib 6 is less than the width of lateral rib 3 and lengthways of rod 4；The upper surface of the arc-shaped rib 5 is higher than the rectangle
The upper surface of rib 4；The intersection of the arc-shaped rib 5 or/and rectangle rib 6 is provided with circular arc convex closure 7.Do so energy
Enough reduce continuous surface area, so that continuous surface area is smaller.
Further, in order to enable human contact's area is smaller, the upper surface of circular arc convex closure 7 is higher than the arc-shaped rib 5
Upper surface.
Further, the upper surface of the arc-shaped rib 5 is at a distance from the upper surface of rectangle rib 6 and described arc-shaped
The upper surface of convex closure 7 is all larger than 2mm at a distance from the upper surface of arc-shaped rib 5.
In the present invention, in order to cooperate different types and make appearance more beautiful, the polygonal bodies 2
For diamond shape, triangle, rectangular or square.
In the present invention, the integral outer profile of outer cover is arc surface, utilizes the disposable punch forming of sheet metal process
It is fabricated, large area is designed using hollow hole 2 and the arc-shaped rib 5 with circular arc convex closure 7 or/and rectangle rib 6 can subtract
The risk of the scald of few large area.
Claims (6)
1. a kind of muffler outer hood on gasoline engine, the polygonal bodies (2) including having multiple hollow holes (1) are described
Polygonal bodies (2) each other there is the lateral rib (3) of spacing and lengthways of rod (4) to constitute by more, it is characterized in that: in institute
State the arc-shaped rib (5) or/and square that integrally formed outwardly convex is provided on lateral rib (3) or/and lengthways of rod (4)
The width of shape rib (6), the arc-shaped rib (5) and rectangle rib (6) is less than lateral rib (3) and lengthways of rod (4)
Width.
2. it is used for the muffler outer hood on gasoline engine as described in claim 1, it is characterized in that: the arc-shaped rib (5)
Upper surface is higher than the upper surface of the rectangle rib (6).
3. as claimed in claim 2 for the muffler outer hood on gasoline engine, it is characterized in that: in the arc-shaped rib (5)
Or/and the intersection of rectangle rib (6) is provided with circular arc convex closure (7).
4. as claimed in claim 3 for the muffler outer hood on gasoline engine, it is characterized in that: the circular arc convex closure (7) is upper
Surface is higher than the upper surface of the arc-shaped rib (5).
5. it is used for the muffler outer hood on gasoline engine as claimed in claim 4, it is characterized in that: the arc-shaped rib (5)
Upper surface is at a distance from the upper surface of rectangle rib (6) and the upper surface of the circular arc convex closure (7) and arc-shaped rib (5)
The distance of upper surface is all larger than 2mm.
6. as claimed in claim 5 for the muffler outer hood on gasoline engine, it is characterized in that: the polygonal bodies (2) are
Diamond shape, triangle, rectangular or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821079584.6U CN208502901U (en) | 2018-07-09 | 2018-07-09 | A kind of muffler outer hood on gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821079584.6U CN208502901U (en) | 2018-07-09 | 2018-07-09 | A kind of muffler outer hood on gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208502901U true CN208502901U (en) | 2019-02-15 |
Family
ID=65285096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821079584.6U Active CN208502901U (en) | 2018-07-09 | 2018-07-09 | A kind of muffler outer hood on gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208502901U (en) |
-
2018
- 2018-07-09 CN CN201821079584.6U patent/CN208502901U/en active Active
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