CN202500097U - Combined sound barrier - Google Patents
Combined sound barrier Download PDFInfo
- Publication number
- CN202500097U CN202500097U CN2012201173019U CN201220117301U CN202500097U CN 202500097 U CN202500097 U CN 202500097U CN 2012201173019 U CN2012201173019 U CN 2012201173019U CN 201220117301 U CN201220117301 U CN 201220117301U CN 202500097 U CN202500097 U CN 202500097U
- Authority
- CN
- China
- Prior art keywords
- sound absorption
- sound
- perforated
- backboard
- combined type
- 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.)
- Expired - Lifetime
Links
- 238000010521 absorption reaction Methods 0.000 claims abstract description 57
- 238000009413 insulation Methods 0.000 claims description 26
- 239000000945 filler Substances 0.000 claims description 22
- 239000011491 glass wool Substances 0.000 claims description 6
- 229920002620 polyvinyl fluoride Polymers 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract 3
- 230000032683 aging Effects 0.000 abstract 1
- 230000002238 attenuated Effects 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound 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- 230000035699 permeability Effects 0.000 description 3
- 230000003712 anti-aging Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses a combined sound barrier which comprises circular arc-shaped perforated sound absorption and isolation boards and wedge-shaped perforated sound absorption boards. The circular arc shaped perforated sound absorption and isolation boards are sequentially connected from top to bottom. The combined sound barrier has the advantages that spread of diffracted sound at the top can be effectively attenuated due to the arrangement of the circular arc shaped perforated sound absorption and isolation boards, multiple reflection of sound wave can be formed so as to increase sound absorption frequency due to the arrangement of the wedge-shaped perforated sound absorption boards on the lower portion, and accordingly, noise can be effectively reduced, environment can be effectively beautified, and the combined sound barrier is resistant to humidity, high temperature and aging. The combined sound barrier is particularly applicable to barriers for barring acoustic disturbances on two sides of urban roads and rail transits.
Description
Technical field
The utility model relates to a kind of metallic sound barrier, is a kind of combined type sound barrier specifically.
Background technology
Along with the rapid expansion of city size and the continuous development of urban construction, urban environment noise has become one of city main environment pollution factor, and traffic noise is the main noise source in modern metropolis.Strengthen the urban traffic noise preventing and controlling and be when last urgent and difficult task, yet one of effective measures of noise abatement are exactly that sound barrier is set.Present domestic sound barrier adopts the lower cement board of cost, aerated concrete wall and structural clay tile wall to process more, and acoustically effective is limited, and pattern is single, does not have good visual effect.Some foam aluminium; Like the disclosed a kind of sound barrier of Chinese patent 98225265.X; Adopt the combination sound barrier of the hollow double-layer structure of foamed aluminium board and backboard composition, this sound barrier lacks effective sound absorption function, and soundproof effect is undesirable; And foaming aluminium sheet cost is higher, and receiving corrosion influences the life-span.
The utility model content
The utility model purpose: in order to overcome the deficiency of prior art, the purpose of the utility model is to provide a kind of excellent noise reduction effect, and is anti-aging, the combined type sound barrier of novel and beautiful.
Technical scheme: in order to solve above-mentioned purpose, the technical scheme that the utility model adopted is: a kind of combined type sound barrier comprises the circular arc perforation sound absorption and insulation plate and the wedge shape perforated acoustic board that connect successively from top to bottom.
Wherein, said circular arc perforation sound absorption and insulation plate comprises three blocks of roundlet arcs perforation sound absorption and insulation plates, and three blocks of roundlet arc perforation sound absorption and insulation plates connect along order from top to bottom successively.
Wherein, Every block of said roundlet arc perforation sound absorption and insulation plate includes first perforated panel, backboard and first junction plate; Said first perforated panel, first backboard form first ducted body through first junction plate; In said first ducted body, be provided with the second sound absorption filler, and leave cavity between said first sound absorption filler and said first backboard.This structure of roundlet arc perforation sound absorption and insulation plate can strengthen the sound permeability fully absorbs its filler that absorbed sound.
In order to improve acoustically effective, the said first sound absorption filler comprises centrifugally glass-wool, is coated with waterproof sound absorption PVF film in the outside of centrifugally glass-wool.
Said first perforated panel is provided with a plurality of through holes, the aperture of each through hole≤Ф 2.5mm, and the gross area of all through hole eyelets is 20%～30% of the said first perforated panel area.Can strengthen the sound permeability so fully absorbs its filler that absorbed sound.
Said wedge shape perforated acoustic board comprises two little wedge shape perforated acoustic boards that link together; So just forming the sound absorption passage and sound wave is repeatedly reflected in passage increases the sound absorption number of times, thereby improves acoustically effective.
Said little wedge shape perforated acoustic board comprises second perforated panel, second backboard and second junction plate; Wherein the folding 45 forms wedge shape cavity in second perforated panel; Said second perforated panel, second backboard form second ducted body through second junction plate; In said second ducted body, be provided with the second sound absorption filler, and all leave cavity between before and after the said second sound absorption filler and said second perforated panel and second backboard.
Beneficial effect: compared with prior art, the utility model has the advantages that: because the circular arc design has been adopted on top, can effectively reduce top diffraction sonic propagation, the design of wedge shape has been adopted in the bottom, and can make sound wave form repeatedly reflection increases the sound absorption number of times; Therefore can effectively reduce noise, beautify the environment and have anti-moist, high temperature resistant, anti-aging.The utility model is particularly useful for the barrier of urban road and track traffic both sides obstruct sound interference.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of the medium and small circular arc perforation of the utility model sound absorption and insulation plate;
Fig. 3 is the structural representation of the medium and small wedge shape of the utility model perforated acoustic board.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further to specify.
To shown in Figure 3, a kind of combined type sound barrier comprises the circular arc perforation sound absorption and insulation plate and the wedge shape perforated acoustic board that connect successively from top to bottom like Fig. 1.
Above-mentioned circular arc perforation sound absorption and insulation plate comprises first roundlet arc perforation sound absorption and insulation plate 1, second roundlet arc perforation sound absorption and insulation plate 2 and the 3rd roundlet arc perforation sound absorption and insulation plate 3; On first roundlet arc perforation sound absorption and insulation plate 1, second roundlet arc perforation sound absorption and insulation plate 2 and the 3rd roundlet arc perforation sound absorption and insulation plate 3 under order be in turn connected to form the circular arc of an integral body; The structure of first roundlet arc perforation sound absorption and insulation plate 1, second roundlet arc perforation sound absorption and insulation plate 2 and the 3rd roundlet arc perforation sound absorption and insulation plate 3 is identical; Include first perforated panel 11, the first sound absorption filler 12 and first backboard 13, first junction plate 14; First perforated panel 11, first backboard 13 form first ducted body through first junction plate 14; In first ducted body, be provided with the first sound absorption filler 12, and leave cavity 15 between the first sound absorption filler 12 and first backboard 13; Can strengthen the sound permeability like this makes it fully absorbed by the first sound absorption filler 12; The first sound absorption filler 12 comprises centrifugally glass-wool, is coated with waterproof sound absorption PVF film in the outside of centrifugally glass-wool.First perforated panel 11 is provided with a plurality of through holes, the aperture of each through hole≤Ф 2.5mm, and perforated percentage is 20%～30%, the gross area that perforated percentage refers to all through hole eyelets is the percentage of first perforated panel, 11 areas.
Above-mentioned wedge shape perforated acoustic board comprises that first little wedge shape perforated acoustic board 4 and second little wedge shape perforated acoustic board 5, the second little wedge shape perforated acoustic boards 5 are connected with the 3rd roundlet arc perforation sound absorption and insulation plate 3 through the first little wedge shape perforated acoustic board 4.
The first little wedge shape perforated acoustic board 4 is identical with second little wedge shape perforated acoustic board 5 structures; Include second perforated panel 41, second backboard 42 and second junction plate 43; Wherein the folding 45 forms wedge shape cavity 44 in second perforated panel 41; Said second perforated panel 41, second backboard 42 form second ducted body through second junction plate 43; In said second ducted body, be provided with the second sound absorption filler 45, and leave between said second sound absorption filler 45 and said second perforated panel 41 cavity 44, second absorb sound filler 45 and and second backboard 42 between leave cavity 46.Also be provided with a plurality of through holes on second perforated panel 41, the aperture of each through hole≤Ф 2.5mm, perforated percentage is that the structure of 20%～30%, the second sound absorption filler 45 is identical with the first sound absorption filler 12.
(GBJ75-1984) (GBJ47-1983) detect through " Code for measurement of building sound insulation " with " Code for measurement of sound absorbing coefficient in reverberation room ", behind employing the utility model, average sound absorption coefficient NRC >=0.75, sound insulation index Rw >=25dB.
The above only is the preferred implementation of the utility model; Be noted that for those skilled in the art; Under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (7)
1. a combined type sound barrier is characterized in that, comprises the circular arc perforation sound absorption and insulation plate and the wedge shape perforated acoustic board that connect successively from top to bottom.
2. combined type sound barrier according to claim 1 is characterized in that, said circular arc perforation sound absorption and insulation plate comprises three blocks of roundlet arcs perforation sound absorption and insulation plates, and three blocks of roundlet arc perforation sound absorption and insulation plates connect along order from top to bottom successively.
3. combined type sound barrier according to claim 2; It is characterized in that; Every block of said roundlet arc perforation sound absorption and insulation plate includes first perforated panel, backboard and first junction plate; Said first perforated panel, first backboard form first ducted body through first junction plate, in said first ducted body, are provided with the second sound absorption filler, and leave cavity between said first sound absorption filler and said first backboard.
4. combined type sound barrier according to claim 3 is characterized in that, the said first sound absorption filler comprises centrifugally glass-wool, is coated with waterproof sound absorption PVF film in the outside of centrifugally glass-wool.
5. combined type sound barrier according to claim 3 is characterized in that, said first perforated panel is provided with a plurality of through holes, the aperture of each through hole≤Ф 2.5mm, and the gross area of all through hole eyelets is 20%～30% of the said first perforated panel area.
6. combined type sound barrier according to claim 1 is characterized in that, said wedge shape perforated acoustic board comprises two little wedge shape perforated acoustic boards that link together.
7. combined type sound barrier according to claim 6; It is characterized in that; Each said little wedge shape perforated acoustic board includes second perforated panel, second backboard and second junction plate; Wherein the folding 45 forms wedge shape cavity in second perforated panel; Said second perforated panel, second backboard form second ducted body through second junction plate, in said second ducted body, are provided with the second sound absorption filler, and all leave cavity between before and after the said second sound absorption filler and said second perforated panel and second backboard.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012201173019U CN202500097U (en) | 2012-03-27 | 2012-03-27 | Combined sound barrier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201173019U CN202500097U (en) | 2012-03-27 | 2012-03-27 | Combined sound barrier |
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| CN202500097U true CN202500097U (en) | 2012-10-24 |
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| CN103526700A (en) * | 2013-10-28 | 2014-01-22 | 陈松 | Acoustic barrier |
| CN103669233A (en) * | 2013-11-11 | 2014-03-26 | 陈松 | Super-microporous ceramic sound absorption barrier and manufacturing method thereof |
| CN104514203A (en) * | 2013-10-01 | 2015-04-15 | 菲森建设株式会社 | Sound insulation tunnel employing corrugated steel sheet |
| CN104894991A (en) * | 2015-06-11 | 2015-09-09 | 黄贺明 | Noise barrier |
| CN105575379A (en) * | 2015-12-18 | 2016-05-11 | 北汽福田汽车股份有限公司 | Muffler chamber and muffler used therefor |
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2012
- 2012-03-27 CN CN2012201173019U patent/CN202500097U/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514203B (en) * | 2013-10-01 | 2017-04-12 | 菲森建设株式会社 | Sound insulation tunnel employing corrugated steel sheet |
| CN104514203A (en) * | 2013-10-01 | 2015-04-15 | 菲森建设株式会社 | Sound insulation tunnel employing corrugated steel sheet |
| CN103526700A (en) * | 2013-10-28 | 2014-01-22 | 陈松 | Acoustic barrier |
| CN103526700B (en) * | 2013-10-28 | 2015-11-18 | 中国铁路总公司 | A kind of sound barrier |
| CN103669233B (en) * | 2013-11-11 | 2016-03-02 | 陈松 | A kind of supreme porous ceramics absorbent lined barrier and manufacture method thereof |
| CN103669233A (en) * | 2013-11-11 | 2014-03-26 | 陈松 | Super-microporous ceramic sound absorption barrier and manufacturing method thereof |
| CN104894991A (en) * | 2015-06-11 | 2015-09-09 | 黄贺明 | Noise barrier |
| CN105575379A (en) * | 2015-12-18 | 2016-05-11 | 北汽福田汽车股份有限公司 | Muffler chamber and muffler used therefor |
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