CN206346124U - A kind of trapezoidal wedge sound barrier panel and its sound barrier - Google Patents
A kind of trapezoidal wedge sound barrier panel and its sound barrier Download PDFInfo
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- CN206346124U CN206346124U CN201621104434.7U CN201621104434U CN206346124U CN 206346124 U CN206346124 U CN 206346124U CN 201621104434 U CN201621104434 U CN 201621104434U CN 206346124 U CN206346124 U CN 206346124U
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Abstract
The utility model discloses a kind of trapezoidal wedge sound barrier panel and its sound barrier, it includes front plate (1) and backplate (2), the front plate (1) is provided with multiple bulge-structures (4) for being set in parallel and stretching out, the longitudinal section of the bulge-structure (4) is trapezoidal, when mounted, only sound barrier panel need to be inserted two adjacent H profile steel columns.The utility model uses the sound absorption principle of wedge, from the tip of wedge to base portion, acoustic impedance is that the impedance of inner sound absorption material is progressively transitioned into from the characteristic impedance of air, realize good impedance matching, incident acoustic energy is set efficiently to be absorbed, trapezoidal bulge-structure is used simultaneously, can more be widened sound absorption frequency range, sound barrier is had preferable assimilation effect for basic, normal, high frequency noise.
Description
Technical field
The utility model is related to the facility of field of Environment Protection noise abatement, and in particular to a kind of trapezoidal wedge sound barrier panel and its
Sound barrier.
Background technology
In recent years, as national economy is lasting, high speed development, city size constantly expands, the change of direction for urban development
With the adjustment of structure, the change of road network form is caused.With the fast development of urban road network, vehicle is improved
Traffic efficiency, but thus caused urban traffic noise pollution problem is also increasing, urban traffic noise intensity constantly increases
Greatly, coverage is more and more wider, the normal work of severe jamming people, study and rests, have become city dweller complain compared with
Many pollution sources.
It for traffic noise pollution, can be controlled, and be set in roadside from noise source, route of transmission, by sound point
Vertical sound barrier is then one of maximally effective means of improvement traffic noise generally acknowledged both at home and abroad.
The more sound barrier of application is rectangular flat or arcuate structure in practice at present, towards the surface of noise source
There is perforation, include porous sound-absorbing material, be plugged on one by one in H profile steel column, form stop and absorption to sound wave, such as China
Patent document CN 201620363, CN 103015338A etc..The sound barrier of such a structure is under certain thickness, for medium-high frequency
Noise, which has preferably to absorb, hinders effect, but poor to low-frequency noise assimilation effect.The wave length of sound of low-frequency noise is longer, with
Slower apart from increased decay, diffraction and penetration capacity are strong.The sound pressure level of low-frequency noise is not high, human ear to itself and it is insensitive, only
Have when night or peace and quiet, it can just have been discovered.But the influence that low-frequency noise is produced to health is not
Hold what is ignored, be a kind of long-term, chronic harm.
For high-speed railway, the noise source of train operation has wheel-rail noise, aerodynamic noise, collector system to make an uproar
Quadratic noise of sound and bridge structures etc., mainly high-frequency noises；For urban track traffic, then with Low Medium Frequency noise
Based on, and the accidental high-frequency noise such as brake squeal is little to overall contribution；And highway is complex, with vehicle, vehicle flowrate, car
Speed etc. is relevant, and low, middle and high frequency noise is generally contained simultaneously.Therefore, should basis when administering traffic noise pollution using sound barrier
The frequency characteristic of noise, have the improvement being directed to, should not use the product of simple function.
Utility model content
Therefore, the utility model meets noise mixing complex area to increase the scope of sound barrier absorption of noise frequency
Noise reduction requirement, the utility model provide a kind of trapezoidal wedge sound barrier panel and its sound barrier.
Used technical scheme is as described below：
On the one hand, the utility model provides a kind of trapezoidal wedge sound barrier panel, and it includes front plate and backplate side seal
Plate, the front plate is provided with multiple bulge-structures for being set in parallel and stretching out, and the longitudinal section of the bulge-structure is in
It is trapezoidal.
Shaping one is caved in region in the front plate, the region of caving between the edges at two ends of the front plate,
The bulge-structure is arranged at described cave in region.
The perforation incoming for sound wave is formed on the bulge-structure.
Described perforate takes shape in upper side and the downside of the bulge-structure.
Described perforate takes shape in the downside of the bulge-structure.
On the other hand, the utility model additionally provides a kind of sound barrier, including phase is fixed in many H profile steel columns and grafting
Sound barrier panel between adjacent two H profile steel columns, the sound barrier panel is above-mentioned wedge sound barrier panel.
The utility model has the advantages that relative to prior art：
A. the utility model uses the sound absorption principle of wedge, and the tip from wedge is to base portion, and acoustic impedance is the spy from air
Property impedance is progressively transitioned into the impedance of inner sound absorption material, realizes good impedance matching, incident acoustic energy is obtained efficiently
Absorption, by using trapezoidal bulge-structure, add absorption area, make sound barrier for basic, normal, high frequency noise have compared with
Good assimilation effect.
B. the utility model is provided with region of caving in front plate, and bulge-structure is arranged in region of caving in, and is so protecting
In the case that card sound barrier panel thickness is constant, using the front plate with region of caving in, the length at wedge position is significantly increased,
The assimilation effect to noise can be strengthened, while having ensured the safe distance with carriage way；
C. the utility model is in the enterprising eleven punch 11 processing of bulge-structure, when only being perforated on bulge-structure downside, tool
There is the function of rain-proof.
D. wedge noise barrier structure of the present utility model is stable, meets existing national standards and specification is wanted to sound barrier
Ask, anti-acoustic capability preferably, can meet the noise abatement of noise mixing complex area.
Brief description of the drawings
In order that content of the present utility model is more likely to be clearly understood, below according to specific implementation of the present utility model
Example and with reference to accompanying drawing, the utility model is described in further detail, wherein
Fig. 1 is the first trapezoidal wedge sound barrier panel structural representation provided by the utility model；
Fig. 2 is second provided by the utility model trapezoidal wedge sound barrier panel structural representation；
Fig. 3 is the third trapezoidal wedge sound barrier panel structural representation provided by the utility model；
Fig. 4 is that the utility model provides noise barrier structure schematic diagram；
Fig. 5 is the side structure schematic diagram shown in Fig. 4.
In figure：1- front plates；2- backplates；3- side seal boards；4- bulge-structures；5- perforates；6- caves in region；7-H shaped steel
Column.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type embodiment is described in further detail.
As shown in figure 1, the utility model provide a kind of trapezoidal wedge sound barrier panel, it include front plate 1, backplate 2,
Side seal board 3 and inner skeleton, wherein backplate 2, front plate 1, side seal board 3 are linked together by inner skeleton, form tool
There is the sound barrier panel of cavity.Multiple bulge-structures 4 for being set in parallel and stretching out, bulge-structure 4 are provided with front plate 1
Longitudinal section it is trapezoidal, by using the sound absorption principle of wedge, the tip from wedge is to base portion, and acoustic impedance is the characteristic from air
Impedance is progressively transitioned into the impedance of inner sound absorption material, realizes good impedance matching, incident acoustic energy is obtained efficiently
Absorb.
As shown in Fig. 2 being provided with region of caving in further preferably in front plate, bulge-structure is arranged in depression area
Domain, so in the case where ensureing that sound barrier panel thickness is constant, using the front plate 1 with region 6 of caving in, significantly increases point
The length at position is split, the assimilation effect to noise can be strengthened, while having ensured the safe distance with carriage way；By using
Trapezoidal bulge-structure, makes sound barrier have preferable assimilation effect for basic, normal, high frequency noise.
Region 6 of caving in employed in the utility model is because the position of base portion is handled using sinking, so that raised knot
The height increase of structure 4, absorption area increase, acoustically effective is more preferable.
Preferably, perforation 5 is provided with bulge-structure 4 in figure 3, the position of perforation 5 can be arranged on all projections
On the downside of structure 4, rain-proof effect can be so played；Upper side that can certainly be in all bulge-structures 4 and downside
Perforation (not shown) is set on face.When circular hole is made in the perforation at wedge position, then 2 shapes of front plate 1 and backplate
Into cavity in can add sound-absorbing material；Make in micropore, cavity and can equally may be used without sound-absorbing material when by perforation 5
To reach good acoustically effective.
The length of wedge part can be adjusted according to demand in the utility model, certain in guarantee wedge sound barrier gross thickness
In the case of, the length of wedge can be increased using region 6 of caving in front plate 1, thus strengthen acoustically effective.
As shown in Figure 4 and Figure 5, the trapezoidal wedge sound barrier panel formed is plugged into the H profile steel column 7 of both sides of the road one by one
In flange plate, the panel side of perforation so forms the powerful sound barrier of acoustical absorptivity towards road.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in protection domain of the present utility model.
Claims (6)
1. a kind of trapezoidal wedge sound barrier panel, it includes front plate (1) and backplate (2), it is characterised in that the front plate
(1) multiple bulge-structures (4) for being set in parallel and stretching out are provided with, the longitudinal section of the bulge-structure (4) is trapezoidal.
2. trapezoidal wedge sound barrier panel according to claim 1, it is characterised in that be molded on the front plate (1) in one
Fall into region (6), the region of caving in (6) is located between the edges at two ends of the front plate (1), the bulge-structure (4) is set
In the region of caving in (6).
3. trapezoidal wedge sound barrier panel according to claim 1 or 2, it is characterised in that be molded on the bulge-structure (4)
There is the perforation (5) incoming for sound wave.
4. trapezoidal wedge sound barrier panel according to claim 3, it is characterised in that the perforation (5) takes shape in described convex
Play upper side and the downside of structure (4).
5. trapezoidal wedge sound barrier panel according to claim 3, it is characterised in that the perforation (5) takes shape in described convex
Play the downside of structure (4).
6. a kind of sound barrier, including the sound-screen that many H profile steel columns (7) and grafting are fixed between adjacent two H profile steels column (7)
Baffle, it is characterised in that the sound barrier panel is any described trapezoidal wedge sound barrier panels of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621104434.7U CN206346124U (en) | 2016-10-08 | 2016-10-08 | A kind of trapezoidal wedge sound barrier panel and its sound barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621104434.7U CN206346124U (en) | 2016-10-08 | 2016-10-08 | A kind of trapezoidal wedge sound barrier panel and its sound barrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206346124U true CN206346124U (en) | 2017-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621104434.7U Active CN206346124U (en) | 2016-10-08 | 2016-10-08 | A kind of trapezoidal wedge sound barrier panel and its sound barrier |
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| Country | Link |
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| CN (1) | CN206346124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914440A (en) * | 2017-12-15 | 2018-04-17 | 芜湖尚唯汽车饰件有限公司 | A kind of noise reduction automotive trim panel |
-
2016
- 2016-10-08 CN CN201621104434.7U patent/CN206346124U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914440A (en) * | 2017-12-15 | 2018-04-17 | 芜湖尚唯汽车饰件有限公司 | A kind of noise reduction automotive trim panel |
| CN107914440B (en) * | 2017-12-15 | 2019-12-13 | 芜湖尚唯汽车饰件有限公司 | Noise-reduction automobile interior trimming panel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 100176 Building No. 20 BDA International Business Avenue, Daxing Economic and Technological Development Zone, Beijing Patentee after: Center INT Group Co., Ltd. Address before: 100176 Building No. 20 BDA International Business Avenue, Chaoyang Economic and Technological Development Zone, Beijing Patentee before: Center INT Group Co., Ltd. |
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| CP02 | Change in the address of a patent holder |