CN201221058Y - V-shaped top noise reducer for acoustical barrier - Google Patents
V-shaped top noise reducer for acoustical barrier Download PDFInfo
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- CN201221058Y CN201221058Y CNU2008201086391U CN200820108639U CN201221058Y CN 201221058 Y CN201221058 Y CN 201221058Y CN U2008201086391 U CNU2008201086391 U CN U2008201086391U CN 200820108639 U CN200820108639 U CN 200820108639U CN 201221058 Y CN201221058 Y CN 201221058Y
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- thin plate
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- denoising device
- sound barrier
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Abstract
The utility model discloses a forking-shaped top noise reduction device of a noise barrier. The forking-shaped top noise reducing device with a V-shaped form consists of a V-shaped frame and a cover plate made of a sound-absorbing material on the V-shaped frame, wherein the V-shaped frame consists of two peripheral thin plates and two inner thin plates; the two inner thin plates are arranged on the peripheral thin plates; a longer side thin plate of two side thin plates is arranged at the front end of a shorter side thin plate; and the cover plate is fixedly arranged between the side thin plates and the peripheral thin plates and between the side thin plate and the top of the side thin plate so as to form a cavity. The forking-shaped top noise reduction device has the advantages of simple and convenient structure, convenient installation and long service life. The forking-shaped top noise reduction device can be used on the top of a novel noise barrier to improve the compound noise reduction effect of the noise barrier and reduce the height of the noise barrier, thereby achieving better visual effect.
Description
Technical field
The utility model relates to a kind of sound barrier top disperser, is specifically related to the sound barrier top diffusion denoising device of a kind of top bifurcated.
Background technology
Along with Traffic Development, the fast development of viaduct and speedway, vehicular traffic is on the rise along with the increase of city vehicle to the noise of resident's generation of road both sides, segment path both sides noise exceeds standard seriously, become the raising along with people's living standard, people are also more and more higher to the requirement of noise.The pollution that common for this reason employing is provided with noise barrier in the road both sides mode is administered traffic noise.At present, normally used noise barrier mostly adopts upright form, and noise reduction is not ideal enough; Some noise barrier adopts the folding wall type, promptly installs one section folding part towards noise source direction again additional on upright sound barrier top, is equivalent to increase the height (height of increase equals the folding part in vertical standoff height) of original upright sound barrier.The noise barrier of these forms all can not effectively reduce the noise that diffraction sound produces.
Summary of the invention
The purpose of this utility model is to provide a kind of sound barrier branch type top denoising device that is additional to existing erect type or folding formula sound barrier top, can effectively spread top diffraction sound, makes diffraction acoustic energy obtain decay, significantly improves the noise reduction of noise barrier.
For reaching above-mentioned purpose, the concrete content of the utility model is:
A kind of sound barrier branch type top denoising device, two cavity structures for the sealing that is V-shape, cavity is surrounded by framework and the sound absorption material cover plate that is installed on the framework, and described sound absorption material cover plate is installed in cavity (C1) top of meeting to noise source direction and another cavity (C2) and meets inboard to noise source direction.
Wherein the V-type framework is made up of two peripheral thin plates and two interior thin plates, two peripheral thin plates are that the V word is divided right and left and link to each other in the bottom, on the peripheral thin plate on two interior thin plate right sides located therein, wherein parallel with the peripheral thin plate in a left side interior thin plate length is longer, its bottom is connected with the peripheral thin plate in right side, an interior thin plate length vertical with the peripheral thin plate in right side is shorter, and the bottom of interior thin plate is connected with peripheral thin plate top, right side.
Set firmly a short cover plate in described between thin plate top and the peripheral thin plate top, set firmly a long cover plate between long interior thin plate and the short side thin plate top, and long cover plate is parallel with bottom, right side thin plate.
The peripheral thin plate in described left side is provided with connecting portion and is connected with existing absorbent lined barrier column upper end.
Also include a junction plate, junction plate links to each other with framework and uses identical material, and forms a Y font cavity structure with the peripheral thin plate in left side on same direction and same straight line, is provided with connecting portion in the junction plate bottom and is connected with the column upper end of noise barrier.
Be provided with the cavity structure of two Y-shapeds, and the junction plate of the cavity structure of two Y-shapeds is that the center line symmetry is discrete with the vertical type sound barrier.
Described sound absorption material cover plate adopts microperforated panel or foamed aluminium acoustical board.
Described sound absorption material cover plate adopts microperforated panel, and the diameter of micropunch is 0.8mm, and perforated percentage is 1-2%.
Described sound absorption material cover plate adopts perforated plate, is filled with the sound absorption rock wool in the perforation.
The utility model sound barrier branch type top denoising device, owing to consider the important and reluctant top diffraction sound that solves in the noise transmission, adopted the structure of top portion forked type, made noise that the road sound source sends, made acoustic energy obtain diffusion at a plurality of bifurcation of bifurcated diffraction repeatedly; Simultaneously, stick at branch the cavity sound absorption construction is set, noise that road produces is the medium and low frequency noise, and cavity structure has acoustically effective preferably to this noise, therefore obtains noise reduction preferably.Owing to the employing of top disperser, can reduce the height of noise barrier greatly, saved construction cost, improved noise reduction.In addition because sound absorption materials such as employing foamed aluminium have better weather.The utility model is simple and light, and is easy for installation, long service life.Can be applied in the noise barrier top, improve the compound noise reduction of noise barrier, use the height of original noise barrier of this branch type top denoising device suitably to reduce, thereby reach landscape effect preferably; Be applicable to the other or speedway of the intensive elevated road of townsfolk.Also can be applied to old erect type or the top transformation of folding wall type sound barrier, improve the noise reduction of original noise barrier.
Description of drawings
Fig. 1: be the cross sectional view of the basic embodiment of the utility model.
Fig. 2: be basic embodiment and existing folding formula sound barrier assembly drawing.
Fig. 3: for the utility model second embodiment with and with existing erect type sound barrier assembly drawing.
Fig. 4: for the utility model the 3rd embodiment with and with existing erect type sound barrier assembly drawing.
The specific embodiment
Below the effect forming and can produce with regard to the structure of the utility model sound barrier branch type top denoising device, conjunction with figs. is described in detail as follows with preferred embodiment:
As shown in Figure 1, be the basic embodiment of the utility model sound barrier branch type top denoising device.This denoising device is the cavity structure of V-shape, cavity is made up of V-type framework 1 and the sound absorption material cover plate of being located on the V-type framework 1, V-type framework 1 is by two peripheral thin plates 11,12 and two interior thin plates 13,14 form, two peripheral thin plates 11,12 are that the V word is divided right and left and link to each other in the bottom, two interior thin plates 13,14 are connected on the peripheral thin plate 11 on right side wherein, thin plate 13 length are longer in wherein parallel with the peripheral thin plate in left side 12 one, its bottom is connected with the peripheral thin plate 11 in right side, thin plate 14 length are shorter in vertical with the peripheral thin plate in right side 11 one, and the bottom of interior thin plate 14 is connected with thin plate 11 tops, periphery, right side; Set firmly a short cover plate 21 between interior thin plate 13 tops and peripheral thin plate 12 tops, set firmly a long cover plate 22 between long interior thin plate 13 and short interior thin plate 14 tops, and long cover plate 22 is parallel with bottom, right side thin plate 11.By above design, surround cavity C 1 by interior thin plate 13 tops, peripheral thin plate 12, peripheral thin plate 11 bottoms, right side and short cover plate 21, surround cavity C 2 by interior thin plate 13 bottoms, short interior thin plate 14, thin plate 11 tops, bottom, right side and long cover plate 22.
In the cavity structure of this V-shape, described thin plate upper limb also can be established frame, is beneficial to sound absorption material cover plate 21 and 22 and is fixed on this frame with riveted way.V-type framework 1 can be made of steel plate, also can adopt Aluminiumplastic composite panel to make.Sound absorption material cover plate 21 and 22 can adopt perforated plate, microperforated panel or foamed aluminium acoustical board, and the diameter of micropunch is 0.8mm, and perforated percentage is 1-2%.When described cover plate adopted perforated plate, filling sucting sound material was wanted in perforated plate inside, as materials such as sound absorption rock wools.
Above structure promptly obtains a kind of the utility model sound barrier branch type top denoising device.This device can directly be installed in existing folding wall type sound barrier 7 tops by fixture.Referring to shown in Figure 2, in the assembling, the peripheral thin plate 12 in left side is towards noise source direction (towards road), and notes between each thin plate and place, the slit between denoising device and the sound barrier needs sealing, can adopt fluid sealant or rubber seal.
The utility model second embodiment, can on basic embodiment basis, install a plate 15 additional, referring to shown in Figure 3, this junction plate 15 links to each other with framework 1 and preferably uses identical material, and forms a Y font cavity structure with the peripheral thin plate 12 in left side on same direction and same straight line.The denoising device of this embodiment is suitable for directly being installed in existing vertical type sound barrier 6 tops.Identical with basic embodiment, in the assembling, peripheral thin plate 12 in left side and junction plate 15 be towards noise source direction (be the left side among the figure), and note between each plate and place, the slit between denoising device and the sound barrier needs to seal, and can adopt fluid sealant or rubber seal.
The utility model the 3rd embodiment, referring to Fig. 4, be to adopt a pair of Y font cavity structure 10,10 ' sound barrier branch type top denoising device, be installed in existing vertical type sound barrier 6 tops and make two Y font cavity structures 10,10 ' symmetries separate from vertical type sound barrier 6 both sides.Wherein, Y font cavity structure 10 its structures and second embodiment that are installed in noise source direction (being the left side among the figure) are identical, in another Y font cavity structure 10 ', the peripheral thin plate 12 ' in its junction plate 15 ' and right side is on same direction and same straight line, and other structure is identical with Y font cavity structure 10.
In concrete enforcement, with the 3rd embodiment is representative, top denoising device at two bifurcateds of existing erect type sound barrier column top welding, each V-type frame size can for: the long cover plate 22 and the 22 ' length of Y font cavity structure 10,10 ' cavity are 200mm, and short cover plate 21 and 21 ' thickness are 100mm.Denoising device bottom, sound barrier branch type top is in order to obtain enough intensity, junction plate 15,15 ' adopts angle bar as reinforcing rib, the position that the bottom is connected with the sound barrier column, adopt 5mm thickness rectangular steel plates 4, steel plate and two branch type structure welding, the both sides, bottom of steel plate have the hole of 13mm to be connected with the column 6 usefulness bolts 5 of noise barrier, as shown in Figure 4.The V word angle of described V-type framework can be 60 degree but also can adopt other suitable angle.
For improving the acoustically effective of the utility model sound absorber, can also add sound absorption material in cavity C 1 and the C2.
Though the utility model is described by previous embodiment, but still can change its form and details, make not breaking away under the spirit of the present utility model.Aforementioned is the most rational using method of the utility model, one of the mode that can specifically implement for the utility model only, but not as limit.
Claims (9)
1, a kind of sound barrier branch type top denoising device, it is characterized in that, two cavity structures for the sealing that is V-shape, cavity is surrounded by framework and the sound absorption material cover plate that is installed on the framework, and described sound absorption material cover plate is installed in cavity (C1) top of meeting to noise source direction and another cavity (C2) and meets inboard to noise source direction.
2, sound barrier branch type as claimed in claim 1 top denoising device, it is characterized in that, wherein the V-type framework is made up of two peripheral thin plates and two interior thin plates, two peripheral thin plates are that the V word is divided right and left and link to each other in the bottom, on the peripheral thin plate on two interior thin plate right sides located therein, wherein parallel with the peripheral thin plate in a left side interior thin plate length is longer, its bottom is connected with the peripheral thin plate in right side, an interior thin plate length vertical with the peripheral thin plate in right side is shorter, and the bottom of interior thin plate is connected with peripheral thin plate top, right side.
3, sound barrier branch type as claimed in claim 2 top denoising device, it is characterized in that, set firmly a short cover plate in described between thin plate top and the peripheral thin plate top, set firmly a long cover plate between long interior thin plate and the short side thin plate top, and long cover plate is parallel with bottom, right side thin plate.
4, sound barrier branch type as claimed in claim 3 top denoising device is characterized in that, the peripheral thin plate in described left side is connected on being provided with connecting portion and existing absorbent lined barrier column.
5, sound barrier branch type as claimed in claim 3 top denoising device, it is characterized in that, also include a junction plate, junction plate links to each other with framework and uses identical material, and on same direction and same straight line, form a Y font cavity structure with the peripheral thin plate in left side, be provided with connecting portion in the junction plate bottom and be connected with the column upper end of noise barrier.
6, sound barrier branch type as claimed in claim 5 top denoising device is characterized in that, be provided with the cavity structure of two Y-shapeds, and the junction plate of the cavity structure of two Y-shapeds is that the center line symmetry is discrete with the vertical type sound barrier.
As the arbitrary described sound barrier branch type of claim 1 to 6 top denoising device, it is characterized in that 7, described sound absorption material cover plate adopts microperforated panel or foamed aluminium acoustical board.
8, a kind of sound barrier branch type as claimed in claim 7 top denoising device is characterized in that, described sound absorption material cover plate adopts microperforated panel, and the diameter of micropunch is 0.8mm, and perforated percentage is 1-2%.
As the arbitrary described sound barrier branch type of claim 1 to 6 top denoising device, it is characterized in that 9, described sound absorption material cover plate adopts perforated plate, be filled with the sound absorption rock wool in the perforation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201086391U CN201221058Y (en) | 2008-06-04 | 2008-06-04 | V-shaped top noise reducer for acoustical barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201086391U CN201221058Y (en) | 2008-06-04 | 2008-06-04 | V-shaped top noise reducer for acoustical barrier |
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| Publication Number | Publication Date |
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| CN201221058Y true CN201221058Y (en) | 2009-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201086391U Expired - Lifetime CN201221058Y (en) | 2008-06-04 | 2008-06-04 | V-shaped top noise reducer for acoustical barrier |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102449238A (en) * | 2009-06-19 | 2012-05-09 | 乐金华奥斯有限公司 | Sound-absorbing noise barrier |
| CN104698763A (en) * | 2013-12-10 | 2015-06-10 | 上海微电子装备有限公司 | Sound absorption and insulation device and photoetching device |
| CN106703636A (en) * | 2016-12-24 | 2017-05-24 | 信宜市现代中兴门业有限公司 | Sound-insulation anti-theft door |
| CN106758903A (en) * | 2016-12-29 | 2017-05-31 | 中铁第四勘察设计院集团有限公司 | The totally-enclosed sound barrier of assembly concrete |
-
2008
- 2008-06-04 CN CNU2008201086391U patent/CN201221058Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102449238A (en) * | 2009-06-19 | 2012-05-09 | 乐金华奥斯有限公司 | Sound-absorbing noise barrier |
| CN102449238B (en) * | 2009-06-19 | 2015-08-05 | 乐金华奥斯有限公司 | Sound-absorbing noise barrier |
| CN104698763A (en) * | 2013-12-10 | 2015-06-10 | 上海微电子装备有限公司 | Sound absorption and insulation device and photoetching device |
| CN106703636A (en) * | 2016-12-24 | 2017-05-24 | 信宜市现代中兴门业有限公司 | Sound-insulation anti-theft door |
| CN106703636B (en) * | 2016-12-24 | 2018-06-08 | 信宜市现代中兴门业有限公司 | Sound insulation antitheft door |
| CN106758903A (en) * | 2016-12-29 | 2017-05-31 | 中铁第四勘察设计院集团有限公司 | The totally-enclosed sound barrier of assembly concrete |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090415 |
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| CX01 | Expiry of patent term |