CN201570255U - Wedge-shaped composite ceramic impedance sound barrier - Google Patents
Wedge-shaped composite ceramic impedance sound barrier Download PDFInfo
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- CN201570255U CN201570255U CN2009202885216U CN200920288521U CN201570255U CN 201570255 U CN201570255 U CN 201570255U CN 2009202885216 U CN2009202885216 U CN 2009202885216U CN 200920288521 U CN200920288521 U CN 200920288521U CN 201570255 U CN201570255 U CN 201570255U
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- wedge shape
- acoustic barrier
- composite ceramics
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Abstract
The utility model relates to environment-friendly products with noise reduction and sound insulation, particularly to a wedge-shaped composite ceramic impedance sound barrier. The sound barrier comprises a box body, wherein a micropore foamed ceramic plate is arranged in the box body, specially, a plurality of triangular projections arranged longitudinally are formed on the front surface of the box body, and the front surface of the box body has the triangular projections and small coined holes which are densely distributed. The sound barrier solves the problems of less effect of sound absorption, bad effect of sound insulation and noise reduction and is widely applied to highways, railways, squares, and other traffic roads and public places.
Description
(1) technical field: the utility model relates to noise reduction sound insulation environment-friendly products, particularly a kind of wedge shape composite ceramics impedance acoustic barrier.
(2) background technology: existing sound barrier, sound absorption, sound insulation unit are mainly by aperture FRP plate (fiberglass) or the flat-plate molded casing of fine-celled foam aluminium, the cotton whole plate of the built-in glass of casing, though aperture FRP plate has sound absorption function, but when incident sound wave frequency during away from the system resonance frequency, air vibration is very weak in the system, and sound absorption is very little, influences whole structure.Have sound-absorbing effect preferably though fine-celled foam aluminium is dull and stereotyped, when reaching certain thickness, the cost of manufacture straight line rises, and does not generally adopt, thereby influences this technology popularization.
(3) summary of the invention: it is less that the purpose of this utility model will solve existing conventional acoustic barrier sound absorption exactly, and the unfavorable problem of sound insulation and noise reduction effect provides a kind of wedge shape composite ceramics impedance acoustic barrier.
Concrete scheme of the present utility model is: design has casing, be provided with the fine-celled foam ceramic wafer in the casing, it is characterized in that: the front of described casing is shaped on N the triangular hill of vertically arranging, and comprises all triangular hills in the front of casing, and punching out has densely covered aperture.
The triangular hill in the front of casing described in the utility model is equilateral triangle, and drift angle is 30 °～50 °, high 30～60mm.
Be arranged vertically some median septums with the fine-celled foam ceramic wafer described in the utility model in casing, this median septum is the fine-celled foam pottery rectangular slab that adopts 30～40mm thick.
Be shaped on N the triangular groove of vertically arranging at the back side of described casing in the utility model, this triangular groove is an equilateral triangle, and drift angle is 55 °～70 °, high 30～60mm.
In the utility model owing to adopt N triangular hill, form wedge structure and produce the wedge acoustically effective, be equipped with small structure, strengthen acoustically effective more, and triangular hill adds median septum again makes formation a plurality of resonant cavities (constituting a plurality of noise reductions unit) in the casing, can effectively eliminate high sound intensity wideband noise and high, medium and low audio-frequency noise.The back side of the present utility model triangular groove forms wedge and separates support, improves casing intensity, improves the absorbing sound and lowering noise effect.The utlity model has the absorbing sound and lowering noise excellent performance, cheap, advantage such as be easy to promote the use of.
(4) description of drawings:
Fig. 1 is a front view of the present utility model;
Fig. 2 is a vertical view of the present utility model.
Among the figure: 1-casing, 2-box back surface, 3-triangular groove, 4-median septum, 5-fine-celled foam ceramic wafer, 6-casing front, 7-triangular hill, 8-aperture.
(5) embodiment:
Referring to Fig. 1, Fig. 2, the utility model adopts FRP (fiberglass) shaping casing 1, be provided with fine-celled foam ceramic wafer 5 in the casing 1, particularly: the front of described casing 1 be shaped on two (a plurality of better, but consider width layout and cost control) vertical triangular hill of arranging 7, and comprise all triangular hills 7 in the front of casing 1, punching out has densely covered aperture 8.
The triangular hill 7 in described casing 1 front is equilateral triangle, and drift angle is 30 °～50 °, high 30～60mm.
Describedly be arranged vertically some median septums 4 with fine-celled foam ceramic wafer 5 in casing 1, this median septum 4 is the fine-celled foam pottery rectangular slabs that adopt 30～40mm thick.
Also be shaped on the triangular groove 3 that two (suitably determining number according to the casing width) are vertically arranged at the back side of described casing 1, this triangular groove 3 is an equilateral triangle, and drift angle is 55 °～70 °, high 30～60mm.
Claims (6)
1. wedge shape composite ceramics impedance acoustic barrier, have casing, be provided with the fine-celled foam ceramic wafer in the casing, it is characterized in that: the front of described casing is shaped on N the triangular hill of vertically arranging, and comprise all triangular hills in the front of casing, punching out has densely covered aperture.
2. a kind of wedge shape composite ceramics impedance acoustic barrier according to claim 1 is characterized in that: the triangular hill in described casing front, be equilateral triangle, and drift angle is 30 °～50 °, high 30～60mm.
3. a kind of wedge shape composite ceramics impedance acoustic barrier according to claim 1 is characterized in that: be arranged vertically some median septums with the fine-celled foam ceramic wafer in casing.
4. a kind of wedge shape composite ceramics impedance acoustic barrier according to claim 3 is characterized in that: described median septum is the fine-celled foam pottery rectangular slab that adopts 30～40mm thick.
5. a kind of wedge shape composite ceramics impedance acoustic barrier according to claim 1 is characterized in that: be shaped on N the triangular groove of vertically arranging at the back side of described casing.
6. a kind of wedge shape composite ceramics impedance acoustic barrier according to claim 5, it is characterized in that: the triangular groove of described box back surface is an equilateral triangle, drift angle is 55 °～70 °, high 30～60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202885216U CN201570255U (en) | 2009-11-30 | 2009-11-30 | Wedge-shaped composite ceramic impedance sound barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202885216U CN201570255U (en) | 2009-11-30 | 2009-11-30 | Wedge-shaped composite ceramic impedance sound barrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201570255U true CN201570255U (en) | 2010-09-01 |
Family
ID=42662554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202885216U Expired - Fee Related CN201570255U (en) | 2009-11-30 | 2009-11-30 | Wedge-shaped composite ceramic impedance sound barrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201570255U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296716A (en) * | 2011-09-06 | 2011-12-28 | 周国柱 | Total reflection sound insulation structure |
| CN110641615A (en) * | 2019-10-08 | 2020-01-03 | 株洲时代新材料科技股份有限公司 | Sound insulation method and partition board for ship interior |
| CN112962480A (en) * | 2021-02-01 | 2021-06-15 | 浙江广厦建设职业技术大学 | A barrier of making an uproar falls in 3D printing cement for highway |
-
2009
- 2009-11-30 CN CN2009202885216U patent/CN201570255U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296716A (en) * | 2011-09-06 | 2011-12-28 | 周国柱 | Total reflection sound insulation structure |
| CN110641615A (en) * | 2019-10-08 | 2020-01-03 | 株洲时代新材料科技股份有限公司 | Sound insulation method and partition board for ship interior |
| CN112962480A (en) * | 2021-02-01 | 2021-06-15 | 浙江广厦建设职业技术大学 | A barrier of making an uproar falls in 3D printing cement for highway |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20151130 |
|
| EXPY | Termination of patent right or utility model |