CN205822035U - A kind of inflation adjustable type sound barrier - Google Patents
A kind of inflation adjustable type sound barrier Download PDFInfo
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- CN205822035U CN205822035U CN201620663916.XU CN201620663916U CN205822035U CN 205822035 U CN205822035 U CN 205822035U CN 201620663916 U CN201620663916 U CN 201620663916U CN 205822035 U CN205822035 U CN 205822035U
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Abstract
The utility model discloses a kind of inflation adjustable type sound barrier, relate to sound pollutant abatement technology field；Inflation adjustable type sound barrier includes hard panel；Also include flexible panel, shaping rack and control device；Annular seal space one it is provided with between hard panel and flexible panel, having annular seal space two inside flexible panel, shaping rack is arranged in annular seal space two, and shaping rack is by flexible panel tensioning, being provided with multiple leg from annular seal space two expenditure on shaping rack, leg is fixed on hard panel；Being communicated with the air inlet of annular seal space two on flexible panel, air inlet connecting have on high-pressure air pipe, and high-pressure air pipe to connect has booster pump；Control device and include that sound transducer and controller, sound transducer and booster pump are all connected with controller.This utility model utilizes the principle of resonance acoustical absorption, by changing the tensioning situation of flexible panel so that flexible panel always can form resonance with sound so that sound-absorbing frequency range is broadened.
Description
Technical field
This utility model relates to sound pollutant abatement technology field, is specifically related to a kind of inflation adjustable type sound barrier.
Background technology
Sound barrier is the impact of neighbouring resident to be arranged on railway and the other wall structure of roadside for alleviating driving noise
The divine force that created the universe, is generally used for highway, high ferro, the sound insulation and noise reducing of underground railway track both sides；And sound barrier be normally located at sound source and
Facility between recipient, makes sound wave have one when propagating and significantly decays, thus weaken making an uproar in receiver region
Sound.Existing noise barrier structure is usually fills acoustical cotton in barrier housing；When acoustic shock sound barrier, its barrier housing
Outer surface can have reflection to sound so that sound attenuating；On the other hand, when sound penetration barriers housing sound, sound meeting
Impact acoustical cotton, acoustical cotton absorbs sound and further results in sound attenuating.
Sound-absorbing material is the porous by means of self, membrane action or resonant interaction and incident acoustic energy is had Absorption
Material, on the one hand the reason of sound-absorbing material sound-absorbing is by making SATT from a surface to internal many tiny unlimited ducts,
Porous material is to absorb medium-high frequency sound wave；Further aspect is that by resonant interaction sound-absorbing, including flexible material (such as obturator-type
Foam plastics, absorbs intermediate frequency), film material (such as plastic foil or cloth, canvas, varnished cloth and artificial leather, absorb Low Medium Frequency), tabular material
Material (such as plywood, hardboard, cement asbestos board and plasterboard, absorb low frequency) and perforated plate (various board-like materials or gold
Belong to punching on plate and prepare, absorb intermediate frequency).Owing to noise is made up of various sound, i.e. noise has various frequency, various by force
The sound of degree, especially at road, because the sound source kind on highway is the most so that the composition of noise is the most complex, and constantly
Change.Mostly existing sound barrier is that the absorbability for high frequency, intermediate frequency or low-frequency sound is stronger；Therefore sound variation is worked as, certain
When the sound of one frequency range increases suddenly, sound barrier cannot may absorb the sound of this frequency range well, efficiently.
Utility model content
The purpose of this utility model is to provide the inflation adjustable type sound barrier of a kind of absorbable wider frequency section sound.
For reaching above-mentioned purpose, base case of the present utility model is as follows:
Inflation adjustable type sound barrier includes hard panel；Also include flexible panel, shaping rack and control device；Described hard
Panel and flexible panel surround annular seal space one, have annular seal space two inside described flexible panel, and described shaping rack is arranged on sealing
In chamber two, and shaping rack is by flexible panel tensioning, and shaping rack is provided with multiple leg from annular seal space two expenditure, described leg
It is fixed on hard panel；Being communicated with the air inlet of annular seal space two on described flexible panel, air inlet connects high pressure gas
Pipe, and on high-pressure air pipe, connection has booster pump；Described control device includes sound transducer and controller, described sound transducer
All it is connected with controller with booster pump.
The principle of this programme inflation adjustable type sound barrier is:
When acoustic shock flexible panel surface, a part of sound is reflected back, and declines through repeatedly roundtrip sound
Subtract；Another part sound is transferred in annular seal space two, annular seal space one, and constantly weakens in annular seal space two, annular seal space one.Separately
Outer also can be received by sound transducer when the ambient sound of surrounding, and be transferred to after controller judges；If in ambient sound
During high-frequency sound large percentage, booster pump will be controlled by controller so that the pressure in annular seal space two increases, due to flexibility
Panel can deform upon, then flexible panel is tensioned, then the resonant frequency of flexible panel improves；Now high-frequency sound impact flexibility
During panel, the amplitude of flexible panel is relatively big, and flexible panel is by the air in continuous compression seal chamber two, annular seal space one, produces
Heat energy, makes acoustic energy decay.If ambient sound medium and low frequency SOV is bigger, booster pump will be controlled by controller,
Pressure in annular seal space two is reduced so that flexible panel relaxes；Now during low-frequency sound impact flexible panel, flexible panel
Amplitude the biggest, and the continuously air in compression seal chamber two, annular seal space one, produce heat energy, make acoustic energy decay.
This programme produces and provides the benefit that:
This programme utilizes the principle of resonance acoustical absorption, by changing the tensioning situation of flexible panel so that flexible panel is always
Resonance can be formed with sound, and then the continuous air in compression seal chamber two, annular seal space one to greatest extent；If therefore sound
Sound impact flexible panel, the loss of acoustic energy would be at more stable state；The i.e. sound-absorbing of this inflation adjustable type sound barrier
Frequency range is broadened.Energy additionally, due to the higher sound of frequency is the highest, and after the air pressure in annular seal space two increases,
Flexible panel will deform, i.e. air thickness in annular seal space two will increase, and therefore for the sound that frequency is higher, this inflation is adjusted
Joint formula sound barrier can strengthen its sound absorbing power accordingly.
Preferred version one: as the further optimization to base case, be provided with sound-absorbing material in described annular seal space one；By
In flexible panel is main and annular seal space two forms resonance acoustical absorption structure, and being therefore provided with sound-absorbing material in annular seal space one can be certain
The ability increasing its decay sound of degree.
Preferred version two: as the further optimization to base case, the surface of described flexible panel is provided with some sound-absorbings
Hole；Owing to increasing air layer thickness, the hoisting power for high-frequency sound decay is limited, and if being provided with on the surface of flexible panel
Dry sound-absorption hole, when flexible panel tensioning, then sound-absorption hole will be opened；Porous material is preferable to the absorbability of high-frequency sound, because of
This this optimization can further enhance this inflation adjustable type sound barrier damping capacity to high-octane high frequency sounds.
Preferred version three: as the further optimization to base case, described shaping rack by described leg and some ribs,
Described rib surrounds some polygons, and described flexible panel inner surface is pasted onto on rib；This optimization at annular seal space two air pressure and
Rib has under the effect of tension flexible panel so that flexible panel surface forms the cambered surface of some projections, therefore can strengthen
The flexible panel reflectance to sound.
Preferred version four: as the further optimization to base case, one piece of described hard panel is provided with polylith flexibility
Panel；When flexible panel area is excessive, the pressure in its annular seal space two is by instability, and therefore this optimization can make this inflation regulate
Formula sound barrier is beneficial to control.
Accompanying drawing explanation
Fig. 1 is the Local map of this utility model embodiment inflation adjustable type sound barrier；
Fig. 2 is part A enlarged drawing in Fig. 1；
Fig. 3 is the Local map of shaping rack in this utility model.
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: hard panel 1, flexible panel 2, shaping rack 3, annular seal space 24, sealing
Chamber 1, sound-absorption hole 21, leg 31, rib 32, sound-absorbing material 51.
As shown in Figure 1, Figure 3, the inflation adjustable type sound barrier of the present embodiment includes hard panel 1, flexible panel 2, sizing
Frame 3 and control device；The hard panel 1 of the present embodiment is made up of aluminium alloy, and flexible panel 2 uses rubber to make；Crust
Plate 1 and flexible panel 2 are provided with sound-absorbing material 51 in surrounding annular seal space 1, and annular seal space 1, the sound-absorbing material 51 of the present embodiment
Use obturator-type foam plastics；Flexible panel 2 is internal has annular seal space 24.Shaping rack 3 is arranged in annular seal space 24, and sizing
Frame 3 is made up of some ribs 32, and rib 32 surrounds some tetragons, and flexible panel 2 inner surface is pasted onto on rib 32, shaping rack
Being provided with multiple leg 31 from annular seal space 24 expenditure on 3, leg 31 is riveted on hard panel 1.Flexible panel 2 is provided with
The air inlet in communication seals chamber 24, air inlet connecting have on high-pressure air pipe, and high-pressure air pipe to connect has booster pump；Control dress
Put and include that sound transducer and controller, sound transducer and booster pump are all connected with controller；The controller of the present embodiment is
Single-chip microcomputer, the signal of sound transducer is CRY2110/2112 type noise transducer.
As shown in Figure 1 and Figure 2, the surface of flexible panel 2 is provided with some sound-absorption hole 21, when the tension force suffered by flexible panel 2 increases
Time big, sound-absorption hole 21 will be opened.And when flexible panel 2 area is excessive, the pressure in its annular seal space 24 is by instability, therefore
Controlling to make this inflation adjustable type sound barrier be beneficial to, one piece of hard panel 1 is provided with six pieces of flexible panels 2.
The specific works process of the present embodiment inflation adjustable type sound barrier is:
When acoustic shock flexible panel 2 surface, a part of sound is reflected back, and another part sound is transferred into close
In envelope chamber 24, annular seal space 1.When the ambient sound of surrounding is received by sound transducer, and it is transferred to controller and judges
After；If ambient sound medium-high frequency SOV is bigger, booster pump will be controlled by controller so that in annular seal space 24
Pressure increase, due to flexible panel 2 can deformation, then flexible panel 2 is tensioned, therefore flexible panel 2 resonant frequency improve, with
Time sound-absorption hole 21 open；Now during high-frequency sound impact flexible panel 2, the amplitude of flexible panel 2 is relatively big, and flexible panel 2 will
Air in compression seal chamber 24, produces heat energy, makes acoustic energy decay continuously；In sound also can cause sound-absorption hole 21 simultaneously
Air vibration.If ambient sound medium and low frequency SOV is bigger, booster pump will be controlled by controller so that annular seal space
Pressure in 24 reduces so that flexible panel 2 relaxes；Now during low-frequency sound impact flexible panel 2, the amplitude of flexible panel 2
Reach maximum, and compression seal chamber 24 continuously, produce heat energy, make acoustic energy decay；Sound absorber in annular seal space 1 simultaneously
Material 51 plays the effect of auxiliary sound-absorbing.
Above is only embodiment of the present utility model, and in scheme, the known general knowledge such as concrete structure and characteristic is not made at this
Too much describe.It should be pointed out that, for a person skilled in the art, on the premise of without departing from this utility model structure, also
May be made that some deformation and improvement, these also should be considered as protection domain of the present utility model, and these are all without affecting this reality
By effect and the practical applicability of novel enforcement.The protection domain that this application claims should be with the content of its claim
Standard, the detailed description of the invention in description etc. records the content that may be used for explaining claim.
Claims (5)
1. an inflation adjustable type sound barrier, including hard panel；It is characterized in that, also include flexible panel, shaping rack and control
Device processed；Described hard panel and flexible panel surround annular seal space one, have annular seal space two inside described flexible panel, described fixed
Type frame is arranged in annular seal space two, and shaping rack is by flexible panel tensioning, shaping rack is provided with multiple from annular seal space two expenditure
Leg, described leg is fixed on hard panel；The air inlet of annular seal space two, air inlet it is communicated with on described flexible panel
Upper connection has on high-pressure air pipe, and high-pressure air pipe to connect booster pump；Described control device includes sound transducer and controller,
Described sound transducer and booster pump are all connected with controller.
Inflation adjustable type sound barrier the most according to claim 1, it is characterised in that be provided with sound-absorbing in described annular seal space one
Material.
Inflation adjustable type sound barrier the most according to claim 1 and 2, it is characterised in that the surface of described flexible panel sets
There are some sound-absorption hole.
Inflation adjustable type sound barrier the most according to claim 1, it is characterised in that if described shaping rack by described leg and
Dry rib, described rib surrounds some polygons, and described flexible panel inner surface is pasted onto on rib.
5. according to the inflation adjustable type sound barrier described in claim 1 or 4, it is characterised in that set on one piece of described hard panel
There is polylith flexible panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620663916.XU CN205822035U (en) | 2016-06-29 | 2016-06-29 | A kind of inflation adjustable type sound barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620663916.XU CN205822035U (en) | 2016-06-29 | 2016-06-29 | A kind of inflation adjustable type sound barrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205822035U true CN205822035U (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620663916.XU Active CN205822035U (en) | 2016-06-29 | 2016-06-29 | A kind of inflation adjustable type sound barrier |
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| CN (1) | CN205822035U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012880A (en) * | 2016-06-29 | 2016-10-12 | 广州睿成信息科技有限公司 | Inflation-adjustable sound barrier |
| CN108708312A (en) * | 2018-05-23 | 2018-10-26 | 江苏金阳交通工程有限公司 | A kind of adjustable sound barrier |
-
2016
- 2016-06-29 CN CN201620663916.XU patent/CN205822035U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012880A (en) * | 2016-06-29 | 2016-10-12 | 广州睿成信息科技有限公司 | Inflation-adjustable sound barrier |
| CN106012880B (en) * | 2016-06-29 | 2018-03-13 | 广州睿成信息科技有限公司 | One kind inflation adjustable type sound barrier |
| CN108708312A (en) * | 2018-05-23 | 2018-10-26 | 江苏金阳交通工程有限公司 | A kind of adjustable sound barrier |
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| GR01 | Patent grant |