CN203569714U - Sound insulation board of multi-layer multi-cavity structure - Google Patents
Sound insulation board of multi-layer multi-cavity structure Download PDFInfo
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- CN203569714U CN203569714U CN201320666276.4U CN201320666276U CN203569714U CN 203569714 U CN203569714 U CN 203569714U CN 201320666276 U CN201320666276 U CN 201320666276U CN 203569714 U CN203569714 U CN 203569714U
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- sound insulation
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- 238000009413 insulation Methods 0.000 title claims abstract description 56
- 238000010521 absorption reaction Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000006260 foam Substances 0.000 claims abstract description 5
- 230000004888 barrier function Effects 0.000 claims description 31
- 239000012528 membrane Substances 0.000 claims description 6
- 238000004078 waterproofing Methods 0.000 claims description 6
- 230000001413 cellular effect Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a sound insulation board of a multi-layer multi-cavity structure. The sound insulation board comprises a front face board, a waterproof thin film, a sound absorption cavity and a back board, a first insulation board and a first sound insulation cavity are arranged between the sound absorption cavity and the back board in sequence, and a sound insulation structure is arranged in the first sound insulation cavity. A second insulation board and a second sound insulation cavity are arranged between the first sound insulation cavity and the back board in sequence, and a sound insulation structure is arranged in the second sound insulation cavity. The sound insulation structures are structures with cavities filled with air, cavities filled with viscous liquid, cavities filled with foam, cavities filled with honeycomb materials and vacuum cavities. Function cavities of different acoustic characteristics are formed by arranging a plurality of stacked cavities filled with sound adsorption materials, and therefore the overall sound insulation performance of the sound insulation board is greatly improved. According to measurement, the sound insulation quantity of the sound insulation board of the multi-layer multi-cavity structure can reach above 55dB.
Description
Technical field
The utility model relates to a kind of structure of noise decrease, relates in particular to a kind of sound barrier.
Background technology
At present; at Environmental Noise engineering field; often can use the less noise pollution of sound barrier; conventionally multilayer sound barrier is combined into the various forms such as noise barrier, sound insulation enclosure or isolation booth, and is widely used in the noise abatement project of traffic (such as railway, highway etc.) and factory and enterprise factory circle etc.Sound barrier, as a kind of basic function member of noise abatement engineering, is of wide application, and consumption is huge, already and will more and more become the accent product of environmental protection industry.
The sound barrier that is applied at present engineering and market supply consists of front panel, sound absorption chamber and backboard mostly, wherein: front panel adopts orifice plate or louvered board structure; Sound absorption is filled with sound absorption material in chamber, is generally fibrous material; Backboard is imperforate plate, and in order to improve rigidity, backboard is provided with longitudinal fin.In addition, for waterproof, on the front surface of sound absorption chamber, be covered with film.
From the structure composition of existing sound barrier itself, because its front panel is open-celled structure, obviously lay particular emphasis on the acoustically effective of considering front panel one side.And due to front panel perforate, reduced overall defening effect, make when the noise contributions of some frequency range, or blocking-up (for example: tunnel type noise barrier or sound insulation enclosure, isolation booth) when penetrating noise as the pollution sources of main component, its sound insulation property exists obviously not enough.The maximum sound insulation factor of existing sound barrier is generally about 35dB left and right.
Utility model content
For above-mentioned prior art, the utility model provides the sound barrier of a kind of multilayer, multi-cavity structure, the utility model forms the different function chamber of acoustic characteristic by multiple superimposed cavitys that are filled with sound absorption material are set, thereby has significantly improved the overall sound insulation property of sound barrier.According to measuring and calculating, the sound insulation factor of the sound barrier of the utility model multilayer, multi-cavity structure can be up to more than 55dB.
In order to solve the problems of the technologies described above, the sound barrier of a kind of multilayer of the utility model, multi-cavity structure, comprise front panel, waterproofing membrane, sound absorption chamber and backboard, from described sound absorption chamber, to being provided with successively the first dividing plate, the 1st sound insulation chamber between backboard, in described the 1st sound insulation chamber, be provided with sound insulating structure.
The sound barrier of the utility model multilayer, multi-cavity structure, wherein, to the 2nd dividing plate and the 2nd sound insulation chamber successively between backboard, is provided with sound insulating structure in described the sound insulation chamber from the 1st sound insulation chamber.
The sound barrier of the utility model multilayer, multi-cavity structure, wherein, described sound insulating structure is selected from the air that is full of cavity, is full of any structure in cellular material and the vacuum cavity of foam, filled chamber of viscous liquid, the filled chamber of cavity.
Compared with prior art, the beneficial effects of the utility model are:
Because the utility model sound barrier arranges sound absorption chamber and multiple sound insulation chamber, and they are given superimposed, form multilayer, multi-cavity structure, by various unlike materials, form the different sound insulation function chamber of acoustic characteristic.Superimposed by each function chamber is carried out, thus the overall sound insulation property of sound barrier significantly improved.According to measuring and calculating, the sound insulation factor of the sound barrier of the utility model multilayer, multi-cavity structure can be up to more than 55dB.The extensive application of the sound barrier of multilayer, multi-cavity structure, will provide a kind of brand-new product for environmental protection noise abatement engineering field, thereby increase substantially noise abatement effect.
Accompanying drawing explanation
Accompanying drawing is the utility model sound barrier structural representation.
In figure: 1-front panel, 2-waterproofing membrane, the 3-chamber that absorbs sound, 4-the 1st dividing plate (rear bulkhead in the chamber that absorbs sound), 5-the 1st sound insulation chamber, 6-the 2nd dividing plate, 7-the 2nd sound insulation chamber, 8-backboard,
The specific embodiment
Below in conjunction with the specific embodiment, the utility model is described in further detail.
In order to meet actual demands of engineering, the sound barrier of a kind of multilayer of the utility model, multi-cavity structure has designed employing multilayer, multi-cavity structure, and its structural form is still flat structure, mainly by sound absorption chamber and one or several sound insulation chamber superimposed composition.
As shown in drawings, the utility model sound barrier comprises the absorb sound rear bulkhead in chamber 3 of front panel 1, waterproofing membrane 2, sound absorption chamber 3, the first dividing plate 4(), the 1st sound insulation chamber 5, the i.e. rear bulkhead in the 1st sound insulation chamber 5 of the 2nd dividing plate 6(), the 2nd sound insulation chamber 7 and backboard 8, in described the 1st sound insulation chamber 5 and the 2nd sound insulation chamber 7, be provided with respectively sound insulating structure.The thickness in described sound insulation chamber is set according to designing requirement, and described sound insulating structure can be selected from the air that is full of cavity, is full of any structure in cellular material and the vacuum cavity of foam, filled chamber of viscous liquid, the filled chamber of cavity.
Sound absorption is mainly played in sound absorption chamber 3, and towards sound source, front panel 1 still adopts orifice plate or louvered board before it, thereafter for being filled with sound absorption chamber 3 and the dividing plate of sound absorption material.According to requirement rainproof, water, can towards a side surface of orifice plate above, be covered with waterproofing membrane 2 in sound absorption chamber.
1(in the utility model and the 2nd) sound insulation chamber be positioned at sound absorption chamber 3 after, mainly play sound insulation effect.Using sound absorption, the dividing plate behind chamber 3, as header board, be thereafter the backboard 8 as acoustic screen baffle in sound insulation chamber, forms the chamber of insulating against sound between dividing plate above and backboard below.According to design needs, sound insulation chamber can, for air chamber (content air), vacuum chamber (vacuumizing), fluid chamber (filling viscous liquid), also can fill foam or cellular material, even with metal material, fill, etc.The thickness in sound insulation chamber also can design according to requirement of engineering.
According to design needs, multiple sound insulation chamber (accompanying drawing shows the structure with 2 sound insulation chambeies) can be set in the utility model, and they be given superimposed, form multilayer, multi-cavity structure.Can be as required in each sound insulation chamber, fill different materials, form the different function chamber of acoustic characteristic.Superimposed by each function chamber is carried out, thus the overall sound insulation property of sound barrier significantly improved.According to measuring and calculating, the sound insulation factor of the sound barrier of multilayer, multi-cavity structure can be up to more than 55dB.
In sound barrier of the present utility model, its front panel and each layer of dividing plate and backboard, can be various metal material or nonmetals etc.The thickness of each laminate material, also will have influence on the acoustical behavior of sound barrier entirety, and durability, integral rigidity, member dead weight, price etc.By meticulously selecting combination, can between technique effect and economic benefit, find best equalization point.
Making the utility model sound barrier is, can be by superimposed successively to front panel (orifice plate or louvered board) 1, waterproofing membrane 2, the sound absorption chamber 3 that is filled with fibrous material, the 1st dividing plate the 4, the 2nd dividing plate 7 and backboard 8 etc.For guaranteeing the accurate thickness in each chamber, can be by the edge bending of each dividing plate and backboard, to be connected to form the each cavity of true-to-size with dividing plate or front panel before it.When sound insulation chamber 5 or 7 is vacuum chamber or the liquid filler of filling, still should guarantees the sealing performance in each chamber, and should reserve extract opening or inlet, and be convenient to seal etc. afterwards.
Although the utility model is described in conjunction with figure above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; in the situation that not departing from the utility model aim, can also make a lot of distortion, within these all belong to protection of the present utility model.
Claims (3)
1. the sound barrier of a multilayer, multi-cavity structure, comprise front panel (1), waterproofing membrane (2), sound absorption chamber (3) and backboard (8), it is characterized in that, from described sound absorption chamber (3), to being provided with successively the first dividing plate (4), the 1st sound insulation chamber (5) between backboard (8), in described the 1st sound insulation chamber (5), be provided with sound insulating structure.
2. the sound barrier of multilayer, multi-cavity structure according to claim 1, is characterized in that, from the 1st sound insulation chamber (5), to the 2nd dividing plate (6) and the 2nd sound insulation chamber (7) successively between backboard (8), described the insulates against sound in chamber (7) is provided with sound insulating structure.
3. according to the sound barrier of multilayer, multi-cavity structure described in claim 1 or 2, it is characterized in that, described sound insulating structure is selected from the air that is full of cavity, is full of any structure in cellular material and the vacuum cavity of foam, filled chamber of viscous liquid, the filled chamber of cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320666276.4U CN203569714U (en) | 2013-10-25 | 2013-10-25 | Sound insulation board of multi-layer multi-cavity structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320666276.4U CN203569714U (en) | 2013-10-25 | 2013-10-25 | Sound insulation board of multi-layer multi-cavity structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203569714U true CN203569714U (en) | 2014-04-30 |
Family
ID=50537451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320666276.4U Expired - Lifetime CN203569714U (en) | 2013-10-25 | 2013-10-25 | Sound insulation board of multi-layer multi-cavity structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203569714U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106952640A (en) * | 2017-04-26 | 2017-07-14 | 大连理工大学 | Control the ultra-thin sound absorption and insulation structure in broadband of acoustic wave propagation path |
| CN107034799A (en) * | 2017-05-26 | 2017-08-11 | 华东交通大学 | A kind of induction type lifting sound barrier system and its method of work |
| CN109252609A (en) * | 2018-08-10 | 2019-01-22 | 安徽辰航新材料科技有限公司 | Aluminum alloy sound-absorbing radiation-absorbing ceiling board |
| CN112282089A (en) * | 2020-10-20 | 2021-01-29 | 黄飞雁 | Rheological state acoustic celotex board based on classic absorption |
-
2013
- 2013-10-25 CN CN201320666276.4U patent/CN203569714U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106952640A (en) * | 2017-04-26 | 2017-07-14 | 大连理工大学 | Control the ultra-thin sound absorption and insulation structure in broadband of acoustic wave propagation path |
| CN106952640B (en) * | 2017-04-26 | 2023-05-12 | 大连理工大学 | Broadband ultrathin sound absorption and insulation structure for controlling sound wave propagation path |
| CN107034799A (en) * | 2017-05-26 | 2017-08-11 | 华东交通大学 | A kind of induction type lifting sound barrier system and its method of work |
| CN109252609A (en) * | 2018-08-10 | 2019-01-22 | 安徽辰航新材料科技有限公司 | Aluminum alloy sound-absorbing radiation-absorbing ceiling board |
| CN112282089A (en) * | 2020-10-20 | 2021-01-29 | 黄飞雁 | Rheological state acoustic celotex board based on classic absorption |
| CN112282089B (en) * | 2020-10-20 | 2022-03-25 | 广西鸿昊新材料有限公司 | Rheological state acoustic celotex board based on classic absorption |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |
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| CX01 | Expiry of patent term |