CN204059641U - A kind of compound perforated sound-absorbing plate - Google Patents
A kind of compound perforated sound-absorbing plate Download PDFInfo
- Publication number
- CN204059641U CN204059641U CN201420371786.3U CN201420371786U CN204059641U CN 204059641 U CN204059641 U CN 204059641U CN 201420371786 U CN201420371786 U CN 201420371786U CN 204059641 U CN204059641 U CN 204059641U
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- CN
- China
- Prior art keywords
- absorbing plate
- perforated sound
- aperture
- sound
- plate
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- 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.)
- Expired - Fee Related
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 15
- 238000010521 absorption reaction Methods 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000011148 porous material Substances 0.000 claims abstract description 6
- 229910052602 gypsum Inorganic materials 0.000 claims description 9
- 239000010440 gypsum Substances 0.000 claims description 9
- 235000008708 Morus alba Nutrition 0.000 claims description 3
- 240000000249 Morus alba Species 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000004744 fabric Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a kind of compound perforated sound-absorbing plate, described abatvoix comprises small-bore perforated sound-absorbing plate and slightly large aperture perforated sound-absorbing plate, the two is pasted mutually, the front of the perforated sound-absorbing plate of described small-bore is as the front of composite plate, the back side of described wide-aperture perforated sound-absorbing plate is as the back side of composite plate, the aperture of described small-bore perforated sound-absorbing plate is d1, thickness is h1, the aperture of described large aperture perforated sound-absorbing plate is d2, thickness is h2, aperture and macropore center of circle overlap, the back side of composite plate is covered with one deck pore sound absorption material.This compound perforated sound-absorbing plate, by certain production and processing technology, perforated sound-absorbing plate plate body obtains a typical helmholtz resonance cavate sound absorption construction.
Description
Technical field
The utility model discloses a kind of compound perforated sound-absorbing plate, and this perforated sound-absorbing plate itself has a typical helmholtz resonance sound absorption construction.
Background technology
Current perforated sound-absorbing plate market has the abatvoix of various hole shape, just the material of plate is different, and sheet metal thickness is different, and the shape of through hole is different, and each hole, with the through sheet material of same shape and aperture, forms helmholtz resonance sound absorption construction with fabric structure.A perforated sound-absorbing plate is not had itself to have a typical helmholtz resonance sound absorption construction.
Utility model content
Given this, the purpose of this utility model is to provide a kind of compound perforated sound-absorbing plate, it comprises small-bore perforated sound-absorbing plate and another slightly large aperture perforated sound-absorbing plate, the two is pasted mutually, the front of the perforated sound-absorbing plate of described small-bore is as the front of composite plate, the back side of described wide-aperture perforated sound-absorbing plate is as the back side of composite plate, the aperture of described small-bore perforated sound-absorbing plate is d1 (about 1-50mm), thickness is h1 (about 0.5-25mm), the aperture of described large aperture perforated sound-absorbing plate is d2 (about 1-80mm), thickness is h2 (about 1-25mm), aperture and macropore center of circle overlap, the back side of composite plate is covered with one deck pore sound absorption material.
Further, described small-bore perforated sound-absorbing plate is respectively gypsum plank and gypsum plank, plank and plank, gypsum plank and plank, mineral wool board and plank with the base material of slightly large aperture perforated sound-absorbing plate.
Further, described aperture and macropore are respectively circular hole and circular hole, square hole and square hole, also can square hole and circular hole mutually combine, but large aperture is concentric.
Further, described pore sound absorption material is mulberry paper or non-woven fabrics etc.
The utility model has the advantage of, current perforated sound-absorbing plate market there is the abatvoix of various hole shape, just the material of plate is different, and the shape of through hole is different, but does not have a perforated sound-absorbing plate itself to have a typical helmholtz resonance sound absorption construction.The utility model discloses a kind of compound perforated sound-absorbing plate, and this perforated sound-absorbing plate itself has a typical helmholtz resonance sound absorption construction.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model compound perforated sound-absorbing plate.
Detailed description of the invention
Elaborate below in conjunction with the detailed description of the invention of accompanying drawing to the compound perforated sound-absorbing plate that the utility model provides.
Fig. 1 is the structural representation of the utility model compound perforated sound-absorbing plate.In the present embodiment, be d1 by a kind of aperture, thickness is the small-bore perforated sound-absorbing plate of h1 and another aperture is d2, thickness is the slightly large aperture perforated sound-absorbing plate of h2, the center of circle overlap paste, the front of the perforated sound-absorbing plate of small-bore as decorative cover, i.e. the front of composite plate, the back side of wide-aperture perforated sound-absorbing plate, as the back side of composite plate, finally pastes one deck mulberry paper or other similar pore sound absorption materials at the back side of composite plate.After compound, the thickness of perforated plate is H, H=h1+h2, d1<d2, and d1, d2 are concentric.The base material of abatvoix is not limit, can be such as gypsum plank and gypsum plank, plank and plank, gypsum plank and plank, mineral wool board and plank etc., hole shape is not limit (such as: circular hole, square hole, also can square hole and circular hole combine), but large and small hole is concentric.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a compound perforated sound-absorbing plate, described abatvoix comprises small-bore perforated sound-absorbing plate and slightly large aperture perforated sound-absorbing plate, the two is pasted mutually, the front of the perforated sound-absorbing plate of described small-bore is as the front of composite plate, the back side of described wide-aperture perforated sound-absorbing plate is as the back side of composite plate, the aperture of described small-bore perforated sound-absorbing plate is d1, thickness is h1, the aperture of described large aperture perforated sound-absorbing plate is d2, thickness is h2, aperture and macropore center of circle overlap, the back side of composite plate is covered with one deck pore sound absorption material, wherein d1 is 1-50mm, h1 is 0.5-25mm, d2 is 1-80mm, h2 is 1-25mm.
2. compound perforated sound-absorbing plate according to claim 1, is characterized in that, the base material of described small-bore perforated sound-absorbing plate and slightly large aperture perforated sound-absorbing plate is respectively gypsum plank and gypsum plank, plank and plank, gypsum plank and plank, mineral wool board and plank.
3. compound perforated sound-absorbing plate according to claim 1, is characterized in that, described aperture and macropore are respectively circular hole and circular hole, square hole and square hole, also can square hole and circular hole mutually combine, but large aperture is concentric.
4. compound perforated sound-absorbing plate according to claim 1, is characterized in that, described pore sound absorption material is mulberry paper or non-woven fabrics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420371786.3U CN204059641U (en) | 2014-07-07 | 2014-07-07 | A kind of compound perforated sound-absorbing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420371786.3U CN204059641U (en) | 2014-07-07 | 2014-07-07 | A kind of compound perforated sound-absorbing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204059641U true CN204059641U (en) | 2014-12-31 |
Family
ID=52201184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420371786.3U Expired - Fee Related CN204059641U (en) | 2014-07-07 | 2014-07-07 | A kind of compound perforated sound-absorbing plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204059641U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193352A (en) * | 2016-08-24 | 2016-12-07 | 梁丽珍 | A kind of compound quieter material |
| CN106639061A (en) * | 2015-07-20 | 2017-05-10 | 江苏宇超电力工程有限公司 | Outdoor main transformer room sound insulation wall |
-
2014
- 2014-07-07 CN CN201420371786.3U patent/CN204059641U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639061A (en) * | 2015-07-20 | 2017-05-10 | 江苏宇超电力工程有限公司 | Outdoor main transformer room sound insulation wall |
| CN106193352A (en) * | 2016-08-24 | 2016-12-07 | 梁丽珍 | A kind of compound quieter material |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 |