CN204386085U - There is the Wood plastic boards of sound absorption function - Google Patents
There is the Wood plastic boards of sound absorption function Download PDFInfo
- Publication number
- CN204386085U CN204386085U CN201420868211.2U CN201420868211U CN204386085U CN 204386085 U CN204386085 U CN 204386085U CN 201420868211 U CN201420868211 U CN 201420868211U CN 204386085 U CN204386085 U CN 204386085U
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- base material
- sound absorption
- wood plastic
- absorption function
- plastic boards
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Abstract
A kind of Wood plastic boards with sound absorption function, comprise the die cavity of base material, through base material rear and front end, its technical essential is: described base material is made up of the expanded material with microcellular structure, some support portions are provided with at equal intervals bottom base material, base material top is provided with some Wedge structures, sidepiece one end of base material arranges slot, and the other end arranges the inserted terminal corresponding with slot.The problem such as fundamentally solve the ornamental difference of existing damping material, cost is high, intensity is low, construction is complicated.
Description
Technical field
The utility model relates to Wood plastic boards field, specifically a kind of Wood plastic boards with sound absorption function.
Background technology
Along with the progress of industrial technology level, the factor affecting health of people gets more and more, and noise becomes another large Health Killer.In fitment process, damping material causes increasing attention.Existing damping material mainly contains following several: (1), at substrate surface perforate or groove, allows noise be entered in porous material as sound-absorbing cloth, acoustical cotton, glass fiber, rubber etc. by duct.(2) at substrate surface spraying sound deadening coating.(3) base material is made sound absorption wedge, utilize transition principle gradually to realize the efficient absorption of sound wave.But substrates for wettability grow can be caused yielding in substrate surface perforate or groove, intensity reduces, and porous material is poor to low frequency absorption simultaneously.Easily block pore at substrate surface spraying sound deadening coating, sound absorption properties reduces.And sound absorption wedge is generally construction high-quality sound attenuation room, acoustical laboratory, silencer box etc. to the necessary sound absorption construction in the field that acoustic environment requirement is higher, high, the ornamental difference of cost.For this reason, following technical scheme is inventors herein proposed.
Utility model content
The purpose of this utility model is to provide a kind of Wood plastic boards with sound absorption function, the problem such as fundamentally solve the ornamental difference of existing damping material, cost is high, intensity is low, construction is complicated.
The purpose of this utility model is achieved in that Wood plastic boards that this has sound absorption function comprises the die cavity of base material, through base material rear and front end, its technical essential is: described base material is made up of the expanded material with microcellular structure, some support portions are provided with at equal intervals bottom base material, base material top is provided with some Wedge structures, sidepiece one end of base material arranges slot, and the other end arranges the inserted terminal corresponding with slot.
Described die cavity is the circular mold cavity that some equal altitudes are arranged on the median of a triangle of Wedge structure.
The center of circle of described circular mold cavity and Wedge structure vertex of a triangle distance are 2mm.
The advantage that the utility model has and positive technique effect are: the sound-absorbing principle utilizing sound absorption wedge, arranges some triangular structures by sheet material upper surface, and when sound wave incident, absorbent treatment is transition gradually, can efficient absorption sound wave.Sound wave runs into obstruction and reflection mainly occurs and absorbs in communication process.The triangular structure of plate surface adds the interreflection of sound wave, can large losses acoustic wave energy in reflection process.String becomes the main component of sound deadening coating due to its special structure, and Wood-plastic material is made for raw material passes through foaming with string and plastics, there is large quantity micropore gap in inside, string by wave absorption in sheet material, double-layer plate resonance sound-absorbing can be formed in sheet material inside and circular duct, plate back and acoustical cotton, middle low-and high-frequency sound wave all can be absorbed, noise reduction coefficient is up to 0.6 after tested.Adopt the sheet material of this structure, avoid and offer duct at plate surface, intensity is higher, by force ornamental, Wood-plastic material has good anti-flammability simultaneously, and insect protected is mothproof, indeformable, reusable edible, easy construction, not containing poisonous and harmful substances such as formaldehyde, green health environmental protection.Adopt the sound absorbing capabilities classification of GB/T16731-1997 building sound absorption product to test, noise reduction coefficient, up to 0.6, illustrates that this material has good absorbing sound and lowering noise characteristic.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model;
Fig. 2 is using state schematic diagram of the present utility model.
Description of reference numerals: 1 Wedge structure, 2 die cavities, 3 inserted terminals, 4 slots, 5 support portions, 6 Wood plastic boards, 7 acoustical cottons, 8 bodies of wall.
Detailed description of the invention
Below in conjunction with Fig. 1 ~ 2, describe content of the present utility model in detail by specific embodiment.This Wood plastic boards with sound absorption function comprises the die cavity 2 of base material, through base material rear and front end.Die cavity 2 is the circular mold cavity that some (seven as Fig. 1) equal altitudes is arranged on the median of a triangle of Wedge structure.Preferably, the center of circle of circular mold cavity and Wedge structure vertex of a triangle distance are 2mm.Base material is made up of the expanded material with microcellular structure, is provided with some support portions 5 bottom base material at equal intervals, and base material top is provided with some Wedge structures 1, and sidepiece one end of base material arranges slot 4, and the other end arranges the inserted terminal 3 corresponding with slot.
During actual use, some sheet material is passed through inserted terminal and the slot grafting in turn of both sides, form structure as shown in Figure 2.Fig. 2 is only schematic diagram, because limited space in figure only replaces with two blocks of sheet materials plugged.For realizing better sound-absorbing effect, pasting acoustical cotton 7 in Wood plastic boards 6 bottom surface of embodiment, and then being fixed on body of wall 8.
Wedge structure involved in the utility model, all refers to that the section arranged continuously is the fold-line-shaped structure of isosceles triangle.About the drift angle size of isosceles triangle, can arrange accordingly according to the noise situation of installing ground, thus reach best noise reduction.When sound wave is incident from the Wedge structure of sheet material, the Wood-plastic material with microcellular structure achieves the transition gradually of sound wave, and the acoustic impedance of material can be mated preferably with the acoustic impedance of air, makes sound wave import sound absorber into, and is absorbed efficiently.
Microcellular foam material mainly refers to microporous foam wood plastic composite, and microporous foam wood plastic composite not only has lower density, and has higher impact strength, toughness, fatigue period and heat stability etc.With a certain amount of matrix material, as PE, PVC, PP, PS, be equipped with a certain amount of string, as wood powder, powdered rice hulls, wheat straw, bamboo powder, obtained by foam process.Material needed for base material of the present utility model can adopt any number of microporous foam wood plastic composite of the prior art, as long as can meet requirement of strength and the micropore size requirement of sheet material infield, concrete material mixture ratio no longer elaborates.
Claims (3)
1. one kind has the Wood plastic boards of sound absorption function, comprise the die cavity of base material, through base material rear and front end, it is characterized in that: described base material is made up of the expanded material with microcellular structure, some support portions are provided with at equal intervals bottom base material, base material top is provided with some Wedge structures, sidepiece one end of base material arranges slot, and the other end arranges the inserted terminal corresponding with slot.
2. the Wood plastic boards with sound absorption function according to claim 1, is characterized in that: described die cavity is the circular mold cavity that some equal altitudes are arranged on the median of a triangle of Wedge structure.
3. the Wood plastic boards with sound absorption function according to claim 2, is characterized in that: the center of circle of described circular mold cavity and Wedge structure vertex of a triangle distance are 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420868211.2U CN204386085U (en) | 2014-12-31 | 2014-12-31 | There is the Wood plastic boards of sound absorption function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420868211.2U CN204386085U (en) | 2014-12-31 | 2014-12-31 | There is the Wood plastic boards of sound absorption function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204386085U true CN204386085U (en) | 2015-06-10 |
Family
ID=53358817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420868211.2U Expired - Fee Related CN204386085U (en) | 2014-12-31 | 2014-12-31 | There is the Wood plastic boards of sound absorption function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204386085U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401118A (en) * | 2016-09-21 | 2017-02-15 | 浙江昱美创新建筑科技有限公司 | Plastic wood inclined hanging board and installation-connection method and installation-connection part for plastic wood inclined hanging board |
| CN108130981A (en) * | 2017-11-24 | 2018-06-08 | 贵州楚智建材科技有限公司 | A kind of outdoor wallboard of bamboo and wood modeling with absorbing sound and lowering noise structure |
-
2014
- 2014-12-31 CN CN201420868211.2U patent/CN204386085U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401118A (en) * | 2016-09-21 | 2017-02-15 | 浙江昱美创新建筑科技有限公司 | Plastic wood inclined hanging board and installation-connection method and installation-connection part for plastic wood inclined hanging board |
| CN106401118B (en) * | 2016-09-21 | 2018-08-24 | 浙江昱美创新建筑科技有限公司 | A kind of wooden tiltedly hanging plate of modeling and its installation and connection method and installation connecting element |
| CN108130981A (en) * | 2017-11-24 | 2018-06-08 | 贵州楚智建材科技有限公司 | A kind of outdoor wallboard of bamboo and wood modeling with absorbing sound and lowering noise structure |
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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: 20150610 Termination date: 20161231 |