CN105803962A - Tilting axis type muffler - Google Patents
Tilting axis type muffler Download PDFInfo
- Publication number
- CN105803962A CN105803962A CN201610166966.1A CN201610166966A CN105803962A CN 105803962 A CN105803962 A CN 105803962A CN 201610166966 A CN201610166966 A CN 201610166966A CN 105803962 A CN105803962 A CN 105803962A
- Authority
- CN
- China
- Prior art keywords
- shell
- cavity
- axis type
- noise
- outer layer
- 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.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
Abstract
The invention discloses a tilting axis type muffler. A traditional sound-absorbing muffler is usually designed to be of a symmetrical structure, and huge waste is generated. The tilting axis type muffler comprises a bracket and a shell, and the shell is integrally in an ellipsoid shape and fixed to the bracket in a mode of being inclined by a certain angle; the shell is composed of an inner layer and an outer layer, and the outer layer ellipsoidal surface and the inner layer ellipsoidal surface are full of micro holes; a cavity for containing damping materials is formed between the outer layer ellipsoidal surface and the inner layer ellipsoidal surface. The double-layer shell is adopted, the shell is provided with the micro holes, and the cavity is internally provided with the damping materials, so that noise is gradually attenuated after being reflected by a cambered surface in the cavity back and forth; due to the fact that thickness of the position, on one side of the shell, of the cavity is larger than that of the shell top and that of the position, on the other side of the shell, of the cavity, it can be guaranteed that the distance, passing through the damping materials, of the noise is longer, and residual noise in the cavity is better absorbed; the surfaces of glass steel sheets on the bracket are concave and convex and rough, so that noise penetrating through the two layers of ellipsoidal surfaces generates diffuse reflection on the surfaces of the glass steel surfaces, and a better noise reduction effect is achieved.
Description
Technical field
The present invention relates to silencing means, be specifically related to a kind of clino-axis type deafener, belong to noise reduction technology field.
Background technology
Clino-axis type deafener is commonly used to be arranged on overpass and highway both sides, plays a role for highway and neighbouring residential block noise reduction.By the path difference principle of ray acoustics, sound barrier is more high, and its noise reduction is more good.But the too high meeting of sound barrier brings many negative effects: 1. along with sound barrier itself highly increases, its wind resistance area increases sharply, and train aerodynamic-force and environment Wind effects are greatly reinforced；2., along with the increase of sound barrier height, foundation of road bed strengthens, bridge static and dynamic loadings increases the weight of, so that construction costs is greatly increased.
Road construction personnel wish to design a kind of without increasing sound barrier height, can play the suction muffler of good noise reduction.Common suction muffler is designed to symmetrical structure, often just the side of road is absorbed the effect of noise considerably beyond the effect of opposite side, produces huge waste undoubtedly.A kind of suction muffler being obviously improved noise absorption area that the present invention designs for above-mentioned the deficiencies in the prior art just.
Summary of the invention
The invention aims to make up the deficiencies in the prior art, it is provided that a kind of sound-absorbing effect is good, prevent the smooth surface deafener of secondary noise.
In order to reach the purpose of the present invention, technical scheme is as follows:
A kind of clino-axis type deafener, includes support, shell, and described shell entirety is elliposoidal, and the mode that shell tilts at a certain angle is fixing on the bracket；Described shell is made up of inside and outside two-layer, and outer layer ellipsoid, internal layer ellipsoid have been covered with micropore；The cavity holding sound-absorbing material is formed between outer layer ellipsoid and internal layer ellipsoid.
Described shell is obliquely installed with the angle of 10 °～20 °.
The thickness of described shell side cavity is more than the thickness of cover top portion, shell opposite side cavity.
Described outer layer ellipsoid, internal layer ellipsoid are made up of galvanized sheet.
Described support is spaced by the glass epoxy that polylith concave-convex surface is coarse and forms.
In described cavity, sound-absorbing material is glass cotton, plastic foam or polyurethane material.
During use, road is just installed by the present invention in the way of low inside and high outside, the mode that tilts at a certain angle due to shell, preferably tilt to be fixed on support with the angle of 10 °～20 °, be effectively improved noise absorption area.Meanwhile, shell entirety is elliposoidal, and its surface, for seamlessly transitting, will not produce secondary noise in case surface, effectively eliminate noise.
Compared with prior art, the present invention has following beneficial effect:
1, clino-axis type deafener of the present invention, adopts double casing, is provided with micropore, again owing to being provided with sound-absorbing material in cavity, makes noise progressively decay after cambered surface roundtrip in cavity on shell.
2, owing to the thickness of shell side cavity is more than the thickness of cover top portion, shell opposite side cavity, can guarantee that noise is longer through the distance of sound-absorbing material, absorb the residual noise in cavity better.
3, on support of the present invention, glass epoxy surface is concavo-convex coarse so that the noise after two-layer ellipsoid produces diffuse-reflectance on glass epoxy surface, plays better noise reduction.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the present invention.
In above-mentioned accompanying drawing, 1, support, 2, shell, 3, outer layer ellipsoid, 4, internal layer ellipsoid, 5, glass cotton, 6, glass epoxy.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
As it is shown in figure 1, clino-axis type deafener of the present invention, including support 1, shell 2, shell 2 is overall in elliposoidal, and shell 2 is fixed on support 1 in the way of the angle inclination of 10 °～20 °.
Shell 2 is made up of inside and outside two-layer, and outer layer ellipsoid 3, internal layer ellipsoid 4 are made up of galvanized sheet.
Outer layer ellipsoid 3, internal layer ellipsoid 4 have been covered with micropore (not shown).Forming the cavity holding sound-absorbing material between outer layer ellipsoid 3 and internal layer ellipsoid 4, in cavity, sound-absorbing material is glass cotton 5.The thickness of shell 2 side cavity is more than the thickness at shell 2 top, shell 2 opposite side cavity.
Support 1 is spaced by the glass epoxy 6 that polylith concave-convex surface is coarse and forms.
During use, road is just installed by the present invention in the way of low inside and high outside, the mode that tilts at a certain angle due to shell 2, preferably tilt to be fixed on support 1 with the angle of 10 °～20 °, be effectively improved noise absorption area.Meanwhile, shell 2 is overall in elliposoidal, and its surface, for seamlessly transitting, will not produce secondary noise, be beneficial to and more effectively abate the noise on shell 2 surface.
Claims (6)
1. a clino-axis type deafener, includes support, shell, it is characterised in that described shell entirety is elliposoidal, and the mode that shell tilts at a certain angle is fixing on the bracket；Described shell is made up of inside and outside two-layer, and outer layer ellipsoid, internal layer ellipsoid have been covered with micropore；The cavity holding sound-absorbing material is formed between outer layer ellipsoid and internal layer ellipsoid.
2. a kind of clino-axis type deafener according to claim 1, it is characterised in that: described shell is obliquely installed with the angle of 10 °～20 °.
3. a kind of clino-axis type deafener according to claim 1, it is characterised in that: the thickness of described shell side cavity is more than the thickness of cover top portion, shell opposite side cavity.
4. a kind of clino-axis type deafener according to any one of claims 1 to 3, it is characterised in that: described outer layer ellipsoid, internal layer ellipsoid are made up of galvanized sheet.
5. a kind of clino-axis type deafener according to claim 4, it is characterised in that: described support is spaced by the glass epoxy that polylith concave-convex surface is coarse and forms.
6. a kind of clino-axis type deafener according to claim 4, it is characterised in that: in described cavity, sound-absorbing material is glass cotton, plastic foam or polyurethane material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610166966.1A CN105803962A (en) | 2016-03-23 | 2016-03-23 | Tilting axis type muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610166966.1A CN105803962A (en) | 2016-03-23 | 2016-03-23 | Tilting axis type muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105803962A true CN105803962A (en) | 2016-07-27 |
Family
ID=56453699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610166966.1A Pending CN105803962A (en) | 2016-03-23 | 2016-03-23 | Tilting axis type muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105803962A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108570942A (en) * | 2018-05-16 | 2018-09-25 | 江苏金阳交通工程有限公司 | A kind of clino-axis type muffler |
| CN108708312A (en) * | 2018-05-23 | 2018-10-26 | 江苏金阳交通工程有限公司 | A kind of adjustable sound barrier |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08305373A (en) * | 1995-05-09 | 1996-11-22 | Bridgestone Corp | Interference type soundproof device |
| JPH0913331A (en) * | 1995-06-27 | 1997-01-14 | Sekisui Jushi Co Ltd | Soundproof device and soundproof wall provided with the device |
| JP2003129428A (en) * | 2001-10-26 | 2003-05-08 | Daito Kinzoku Kk | Sound isolating plate integrated muffling cylinder and sound isolating wall |
| CN1455836A (en) * | 2000-11-08 | 2003-11-12 | 铃木政夫 | Rolled soundproof wall |
| KR20120063597A (en) * | 2010-12-08 | 2012-06-18 | 한일공영 주식회사 | Soundproofing wall |
| CN204510049U (en) * | 2015-04-07 | 2015-07-29 | 王小龙 | A kind of sound-absorbing barrier for highway |
-
2016
- 2016-03-23 CN CN201610166966.1A patent/CN105803962A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08305373A (en) * | 1995-05-09 | 1996-11-22 | Bridgestone Corp | Interference type soundproof device |
| JPH0913331A (en) * | 1995-06-27 | 1997-01-14 | Sekisui Jushi Co Ltd | Soundproof device and soundproof wall provided with the device |
| CN1455836A (en) * | 2000-11-08 | 2003-11-12 | 铃木政夫 | Rolled soundproof wall |
| JP2003129428A (en) * | 2001-10-26 | 2003-05-08 | Daito Kinzoku Kk | Sound isolating plate integrated muffling cylinder and sound isolating wall |
| KR20120063597A (en) * | 2010-12-08 | 2012-06-18 | 한일공영 주식회사 | Soundproofing wall |
| CN204510049U (en) * | 2015-04-07 | 2015-07-29 | 王小龙 | A kind of sound-absorbing barrier for highway |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108570942A (en) * | 2018-05-16 | 2018-09-25 | 江苏金阳交通工程有限公司 | A kind of clino-axis type muffler |
| CN108708312A (en) * | 2018-05-23 | 2018-10-26 | 江苏金阳交通工程有限公司 | A kind of adjustable sound barrier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160727 |