CN205822037U - A kind of highway acoustic barrier unit board - Google Patents
A kind of highway acoustic barrier unit board Download PDFInfo
- Publication number
- CN205822037U CN205822037U CN201620664282.XU CN201620664282U CN205822037U CN 205822037 U CN205822037 U CN 205822037U CN 201620664282 U CN201620664282 U CN 201620664282U CN 205822037 U CN205822037 U CN 205822037U
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- panel
- groove
- barrier unit
- unit board
- acoustic barrier
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Abstract
This utility model specifically discloses a kind of highway acoustic barrier unit board, acoustic barrier unit board body, acoustic barrier unit board body includes backboard, panel and the cement fibrolite plate being installed between backboard and panel, sound absorption rock wool and metal support block, it is provided with the groove of horizontal cross on panel, panel is painted with sound deadening coating；Reflection muffler plate it is additionally provided with on panel, reflection muffler plate is between adjacent groove, reflection muffler plate includes that the perforated plate of the concave arc in cross section and sound-absorption glass are cotton, and perforated plate is connected with panel bolts, and sound-absorption glass cotton is bonded in the depression cambered surface of perforated plate.The program compares existing acoustic barrier unit board, and the effect abated the noise is preferable.
Description
Technical field
This utility model relates to sound barrier technical field, is specifically related to a kind of highway acoustic barrier unit board.
Background technology
Sound barrier is disposed on highway or the train run at high speed, automobile can effectively be produced by a kind of of railway both sides
Noise isolation and the structure of elimination.Sound barrier is to be the board plug type structure that H profile steel column combines with cell board by cross section.
Sound barrier by some steel columns that spacing distance is 200 400 centimetres along road alternately, inserts between H profile steel column
50 100 centimetres of wide acoustic barrier unit boards form the sound barrier preventing and treating noise of both sides of highway.
The acoustic barrier unit board structure used at present mainly include backboard, panel and be sandwiched in cement fibrolite plate therebetween,
Sound absorption rock wool and metal support block, and fixed by with rivet after constituting the backboard of sound barrier shell, panel snapping, Cement fibre
Plate is supported by the metal support block being arranged at surrounding, and rock wool is fixed on cement fibrolite plate by screw and pad in sound absorption.This
Kind of structure-borne sound barrier causes it to occur to the phenomenon of external diffusion due to noise reflected refraction on cell board, there is stop
Defect with the weak effect that abates the noise.
Utility model content
The purpose of this utility model is that offer abates the noise preferably a kind of highway acoustic barrier unit board of effect.
For reaching above-mentioned purpose, base case of the present utility model is: a kind of highway acoustic barrier unit board, sound-screen
Barrier cell board body, acoustic barrier unit board body include backboard, panel and the cement fibrolite plate being installed between backboard and panel,
Sound absorption rock wool and metal support block, panel is provided with the groove of horizontal cross, panel is painted with sound deadening coating；On panel
Being additionally provided with reflection muffler plate, reflection muffler plate is between adjacent groove, and reflection muffler plate includes the concave arc in cross section
Perforated plate and sound-absorption glass cotton, perforated plate is connected with panel bolts, and sound-absorption glass cotton is bonded in the depression cambered surface of perforated plate
On.
Operation principle and the advantage of this programme are: this programme is that the panel to existing acoustic barrier unit board body carries out skill
Art is transformed, and arranges groove on panel, utilizes the relative distance formed between the bottom surface of groove and panel so that reach on panel
Noise divided.When in the car noise of highway or other noise transmission to the panel of acoustic barrier unit board body
Time, the groove on panel defines the iris action to noise wavelength, and therefore partial noise will circulate on the sidewall of groove
Reflection.Meanwhile, partial noise also can be eliminated by sound deadening coating so that is partly disappeared by the noise of acoustic barrier unit board body
Remove.
Noise is when arriving on reflection muffler plate, and partial noise can be eliminated by the sound-absorption glass cotton on reflection muffler plate,
And partial noise can be reflected back along noise source by reflection muffler plate again.When the noise reflected back is again by other thing
Body, when reflecting such as automobile case, barrier or other sound barrier, can be eliminated and reflect by some noise again.Make an uproar
Sound through the effect of reflection muffler plate, all can consume certain energy consumption each time, thus promotes that noise is proud to be eliminated.The party
Case compares existing acoustic barrier unit board, and the effect abated the noise is preferable.
Preferred version one: based on the preferred version of scheme, the cross section of groove is trapezoidal.Trapezoidal have hypotenuse, therefore cuts
The trapezoidal groove in face will form the side that area is bigger on panel, and so, groove just can eliminate more noise.
Preferred version two: as the preferred version of prioritization scheme one, trapezoidal base is towards backboard.Due to trapezoidal base
Towards backboard, the angle therefore formed between sidewall and the bottom surface of the groove that cross section is trapezoidal is acute angle, thus contribute to into
Enter the noise in groove and can form reflection between the side of groove and bottom surface.Advantageously eliminated by panel in noise.
Preferred version three: as the preferred version of prioritization scheme two, the degree of depth of groove is set to 20mm, the bottom surface width of groove
Degree is set to 70mm, and the end face width of groove is set to 50mm.Through the experiment of applicant, find setting the size of groove
During for above-mentioned numerical value, so that the intensity at panel is unaffected, and can disappear at the effect lower panel of groove
The noise decibel value removed is the highest.
Preferred version four: as the preferred version of prioritization scheme two, the cross-sectional area of groove along groove length direction by
Step reduces.The above-mentioned portion of energy consuming noise the most further that is provided with, improves the eradicating efficacy of noise.
Preferred version five: as the preferred version any one of prioritization scheme three or prioritization scheme four, groove is each other
Vertical spacing unequal.The purpose of above-mentioned setting is, when groove cubing each other does not waits, to be more beneficial for groove and disappear
The portion of energy of consumption noise, thus reach the purpose of noise reduction.
Preferred version six: as the preferred version of prioritization scheme five, be additionally provided with elasticity between sound-absorption glass cotton and panel
Thin film.Elastic film, in order to make up the gap between sound-absorption glass cotton and panel, consumes the energy of noise the most further, improves
Erasure effect.
Accompanying drawing explanation
Fig. 1 is the panel plane structural representation in this utility model embodiment；
Fig. 2 is the panel sectional structure schematic diagram in this utility model embodiment.
Detailed description of the invention
Below by detailed description of the invention, this utility model is described in further detail:
Reference in Figure of description includes: panel 1, backboard 2, sound absorption rock wool 3, groove 4, sound-absorption glass cotton 5, wear
Orifice plate 6, elastic film 7.
Embodiment is substantially as shown in Fig. 1 and Fig. 2: a kind of highway acoustic barrier unit board, including sound barrier unit
Plate body, acoustic barrier unit board body includes backboard 2, panel 1 and the cement fibrolite plate being installed between backboard 2 and panel 1, suction
Sound rock wool 3 and metal support block.It is provided with the groove 4 of horizontal cross on panel 1, panel 1 is also painted with sound deadening coating.
Being additionally provided with reflection muffler plate between adjacent groove, reflection muffler plate includes the perforated plate 6 of the concave arc in cross section and inhales
Sound glass cotton 5, perforated plate 6 is connected with acoustic barrier unit board body bolt, and sound-absorption glass cotton 5 is bonded in the depression arc of perforated plate 6
On face.
In the present embodiment, when the panel 1 of the car noise of highway or other noise transmission to acoustic barrier unit board
Time upper, the groove 4 on panel 1 defines the iris action to noise wavelength, and therefore partial noise will be on the sidewall of groove 4
Circulated reflection.Meanwhile, partial noise also can be eliminated by sound deadening coating so that by the noise of acoustic barrier unit board by part
Eliminate.And noise is when arriving on reflection muffler plate, partial noise can be eliminated by the sound-absorption glass cotton 5 on reflection muffler plate,
And partial noise can be reflected back along noise source by reflection muffler plate again.When the noise reflected back is again by other thing
Body, when reflecting such as automobile case, barrier or other sound barrier, can be eliminated and reflect by some noise again.
In order to improve the erasure effect of acoustic barrier unit board body further, the cross section of groove 4 is set to trapezoidal, trapezoidal
Base towards backboard 2.Trapezoidal have hypotenuse, and the groove 4 that therefore cross section is trapezoidal will form the side that area is bigger on panel 1
Face, such groove 4 just can eliminate more noise.Owing to trapezoidal base is towards backboard 2, the groove that therefore cross section is trapezoidal
The angle formed between sidewall and the bottom surface of 4 is acute angle, and the noise thus contributing to entering in groove 4 can be at groove 4
Side and bottom surface between formed reflection.
Through the experiment of applicant, the degree of depth of the groove 4 in the present embodiment is set to 20mm, and the bottom width of groove 4 sets
Being set to 70mm, the end face width (i.e. A/F) of groove 4 is set to 50mm.By above-mentioned setting, so that at panel 1
Intensity be unaffected, and the highest at the effect noise decibel value that can eliminate of lower panel 1 of groove 4.
Further, the cross-sectional area of groove 4 progressively reduces along the length direction of groove 4.Although above-mentioned concrete numerical value energy
There is more preferable effect, but applicant is simultaneously it was also found that the impact on abating the noise of the cross-sectional area of change groove 4 is relatively big, because of
For noise when entering in the groove 4 that cross-sectional area is continually changing, it will be consumed portion of energy, thus the decibel of noise
Value also can reduce.
Further, groove 4 vertical spacing each other is unequal.The groove 4 that vertically spacing is unequal is for different ripples
Long noise, can consume the portion of energy in noise.
In order to consume the ability of noise further, thus reach the purpose of noise reduction, in the present embodiment, cotton 5 Hes of sound-absorption glass
Elastic film 7 it is additionally provided with between panel 1.The side of elastic film 7 is bonded in the edge of groove 4, opposite side is bonded in sound absorption
On glass cotton 5.Elastic film 7 one aspect is in order to make up space between sound-absorption glass cotton 5 and groove 4, on the other hand also to making an uproar
Sound takes blocking effect, and consumes the portion of energy of noise.
Above-described is only optimal enforcement example of the present utility model, the known general knowledge such as concrete structure and characteristic in scheme
Too much describe at this.It should be pointed out that, for a person skilled in the art, before without departing from this utility model structure
Putting, it is also possible to make some deformation and improvement, these also should be considered as protection domain of the present utility model, and these are all without shadow
Ring effect and practical applicability that this utility model is implemented.The protection domain that this application claims should be with in its claim
Appearance is as the criterion, and the detailed description of the invention in description etc. records the content that may be used for explaining claim.
Claims (7)
1. a highway acoustic barrier unit board, including acoustic barrier unit board body, described acoustic barrier unit board body bag
Including backboard, panel and the cement fibrolite plate being installed between backboard and panel, sound absorption rock wool and metal support block, its feature exists
In, described panel is provided with the groove of horizontal cross, panel is painted with sound deadening coating；It is additionally provided with reflection on described panel
Muffler plate, reflection muffler plate between adjacent groove, reflection muffler plate include the concave arc in cross section perforated plate and
Sound-absorption glass is cotton, and perforated plate is connected with panel bolts, and sound-absorption glass cotton is bonded in the depression cambered surface of perforated plate.
Highway acoustic barrier unit board the most according to claim 1, it is characterised in that the cross section of described groove is ladder
Shape.
Highway acoustic barrier unit board the most according to claim 2, it is characterised in that described trapezoidal base towards
Backboard.
Highway acoustic barrier unit board the most according to claim 3, it is characterised in that the degree of depth of described groove is arranged
For 20mm, the bottom width of groove is set to 70mm, and the end face width of groove is set to 50mm.
Highway acoustic barrier unit board the most according to claim 3, it is characterised in that the cross-sectional area of described groove
Length direction along groove progressively reduces.
6. according to the highway acoustic barrier unit board according to any one of claim 4 or 5, it is characterised in that described recessed
Groove vertical spacing each other is unequal.
Highway acoustic barrier unit board the most according to claim 6, it is characterised in that described sound-absorption glass cotton dough-making powder
Elastic film it is additionally provided with between plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620664282.XU CN205822037U (en) | 2016-06-29 | 2016-06-29 | A kind of highway acoustic barrier unit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620664282.XU CN205822037U (en) | 2016-06-29 | 2016-06-29 | A kind of highway acoustic barrier unit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205822037U true CN205822037U (en) | 2016-12-21 |
Family
ID=57567183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620664282.XU Active CN205822037U (en) | 2016-06-29 | 2016-06-29 | A kind of highway acoustic barrier unit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205822037U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106049302A (en) * | 2016-06-29 | 2016-10-26 | 广州恒成智道信息科技有限公司 | Sound barrier unit plate used for expressway |
| CN112227237A (en) * | 2020-11-10 | 2021-01-15 | 广州地铁设计研究院股份有限公司 | Sound barrier containing air resonant cavity |
-
2016
- 2016-06-29 CN CN201620664282.XU patent/CN205822037U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106049302A (en) * | 2016-06-29 | 2016-10-26 | 广州恒成智道信息科技有限公司 | Sound barrier unit plate used for expressway |
| CN106049302B (en) * | 2016-06-29 | 2018-03-13 | 广州恒成智道信息科技有限公司 | A kind of highway acoustic barrier unit board |
| CN112227237A (en) * | 2020-11-10 | 2021-01-15 | 广州地铁设计研究院股份有限公司 | Sound barrier containing air resonant cavity |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |