CN110219258A - A kind of noise abatement device applied to overpass - Google Patents
A kind of noise abatement device applied to overpass Download PDFInfo
- Publication number
- CN110219258A CN110219258A CN201910649307.7A CN201910649307A CN110219258A CN 110219258 A CN110219258 A CN 110219258A CN 201910649307 A CN201910649307 A CN 201910649307A CN 110219258 A CN110219258 A CN 110219258A
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- sound
- layer
- noise
- absorbing
- noise reduction
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0017—Plate-like elements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0029—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with porous surfaces, e.g. concrete with porous fillers
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention discloses a kind of noise abatement devices applied to overpass, belong to noise abatement field, a kind of noise abatement device applied to overpass, inverted L formula acoustic screen including being mounted on overpass two sides, inverted L formula acoustic screen includes inner baffle plate, middle sound absorbing layer and outer soundproof plate, inner baffle plate, middle sound absorbing layer and outer soundproof plate are sequentially distributed from inside to outside, support rod is fixedly connected between inner baffle plate and outer soundproof plate and middle sound absorbing layer, inner baffle plate is located at close to the side of overpass, inner baffle plate outer end, which is dug, multiple equally distributed sound-absorbing slots, outer soundproof plate inner end, which is dug, multiple equally distributed sound-absorption holes, left noise reduction layer is filled between inner baffle plate and middle sound absorbing layer, right noise reduction layer is filled between middle sound absorbing layer and outer soundproof plate, it may be implemented by absorbing most of noise, to which the reflectivity of noise be effectively reduced Effect, and then reduce influence of the noise to driver on overpass, improve safety.
Description
Technical field
The present invention relates to noise abatement fields, more specifically to a kind of noise abatement device applied to overpass.
Background technique
Noise refers to the sound issued when sounding body does random vibration.Sound is generated by the vibration of object, with the shape of wave
Formula is propagated in certain medium (such as solid, liquid, gas).Caused by usually said noise pollution refers to artificially.
From the point of view of physiological point, all interference people rests, study and work and the sound that interference is generated to your sound to be listened
Sound, i.e., unwanted sound, is referred to as noise.When noise on human and ambient enviroment cause adverse effect, it is dirty just to form noise
Dye.Since Industrial Revolution, the creation and use of various mechanical equipments bring flourishing and progress to the mankind, but also generate simultaneously
More and more and increasingly stronger noise.Noise not only can cause to damage to hearing, moreover it is possible to induce a variety of carcinogenic fatal
Disease also interferes people's lives work.
The noise abatement of existing overpass is usually to set inverted L formula acoustic screen, or the large-scale folding of unilateral setting in route two sides
Board-like acoustic screen, although this noise abatement has obstructed noise to a certain extent and has propagated to outside overpass, the sound insulation of inverted L formula
Screen is poor for the absorption function of noise, and noise would generally be concentrated on by reflection in the middle part of overpass, is affected for driver.
Summary of the invention
1. technical problems to be solved
Aiming at the problems existing in the prior art, it is anti-that the purpose of the present invention is to provide a kind of noises applied to overpass
It purchases things necessary for a long journey and sets, it may be implemented by absorbing most of noise, so that the effect of the reflectivity of noise be effectively reduced, and then reduces and makes an uproar
Influence of the sound to driver on overpass improves safety.
2. technical solution
To solve the above problems, the present invention adopts the following technical scheme that.
A kind of noise abatement device applied to overpass, the inverted L formula acoustic screen including being mounted on overpass two sides are described
Inverted L formula acoustic screen includes inner baffle plate, middle sound absorbing layer and outer soundproof plate, the inner baffle plate, middle sound absorbing layer and outer soundproof plate by
It is sequentially distributed from inside to outside, support rod is fixedly connected between the inner baffle plate and outer soundproof plate and middle sound absorbing layer, it is described interior
Soundproof plate is located at close to the side of overpass, and the inner baffle plate outer end, which is dug, multiple equally distributed sound-absorbing slots, described outer
Soundproof plate inner end, which is dug, multiple equally distributed sound-absorption holes, and left noise reduction is filled between the inner baffle plate and middle sound absorbing layer
Layer, is filled with right noise reduction layer between the middle sound absorbing layer and outer soundproof plate, the middle sound absorbing layer includes two and seals against each other fixation
Clamping plate, sound insulation filled layer is filled between two clamping plates, may be implemented by absorbing most of noise, to effectively drop
The effect of the reflectivity of low noise, and then influence of the noise to driver on overpass is reduced, improve safety.
Further, the number of the sound-absorbing slot and sound-absorption hole is corresponding, and multiple sound-absorbing slots and multiple sound-absorption holes are alternate
It is interspersed, to change so that conduct the running route into the noise in inverted L formula acoustic screen from sound-absorbing slot, increases it and falling
Conduction distance could conduct from sound-absorption hole in L formula acoustic screen, increase sound-absorbing effect.
Further, the left noise reduction layer and right noise reduction layer are in compressive state in inverted L formula acoustic screen, to reduce
Penetration power of the noise in the two, to effectively intercept and absorb noise, and the pressed density of left noise reduction layer is greater than right noise reduction layer
Pressed density, the noise touched at left noise reduction layer is bigger, thus density is bigger, and then effectively prevents the conduction of sound, mentions
The noise reduction effect of high inverted L formula acoustic screen.
Further, the left noise reduction layer is identical with right noise reduction layer thickness and the two is all made of sound-absorbing sponge and is made, so that
Left noise reduction layer and right noise reduction layer all have good sound-absorbing effect.
Further, the support rod is hollow structure, so that sound-absorption hole is in connection inner baffle plate and outer soundproof plate
In the case where, also there is certain absorbing sound and lowering noise effect, and sound-absorbing slot and sound-absorption hole be not concordant with support rod, to effectively keep away
Exempt from the case where noise is linearly propagated in inverted L formula acoustic screen, to extend propagation path, improves absorbing sound and lowering noise effect.
Further, the sound insulation filled layer can be compressed sound-absorbing sponge, and the pressed density of sound insulation filled layer
Greater than left noise reduction layer and right noise reduction layer, enable the effect that partition noise transmission path is effectively realized at middle sound absorbing layer, in turn
Improve the absorbing sound and lowering noise effect of inverted L formula acoustic screen.
Further, the sound insulation filled layer can also be the wood shavings that are pressed, and there are various between sawdust particle
A meter gap is washed, the effect of absorption can be effectively played to noise, while the utilization for timber resources can also be improved using sawdust
Rate.
3. beneficial effect
Compared with the prior art, the present invention has the advantages that
(1) this programme may be implemented by absorbing most of noise, so that the effect of the reflectivity of noise is effectively reduced, into
And influence of the noise to driver on overpass is reduced, improve safety.
(2) number of sound-absorbing slot and sound-absorption hole is corresponding, and multiple sound-absorbing slots and multiple sound-absorption holes are alternate is interspersed, from
And change so that conduct the running route into the noise in inverted L formula acoustic screen from sound-absorbing slot, increase it in inverted L formula acoustic screen
Conduction distance could conduct from sound-absorption hole, increase sound-absorbing effect.
(3) left noise reduction layer and right noise reduction layer are in compressive state in inverted L formula acoustic screen, to reduce noise in the two
Interior penetration power, so that noise is effectively intercepted and absorbs, and the pressed density of left noise reduction layer is greater than the pressed density of right noise reduction layer,
The noise touched at left noise reduction layer is bigger, thus density is bigger, and then effectively prevents the conduction of sound, improves the sound insulation of inverted L formula
The noise reduction effect of screen.
(4) left noise reduction layer is identical with right noise reduction layer thickness and the two is all made of sound-absorbing sponge and is made so that left noise reduction layer and
Right noise reduction layer all has good sound-absorbing effect.
(5) support rod is hollow structure, so that sound-absorption hole in the case where connecting inner baffle plate and outer soundproof plate, is gone back
With certain absorbing sound and lowering noise effect, and sound-absorbing slot and sound-absorption hole be not concordant with support rod, to effectively avoid noise in inverted L
The case where linearly propagating in formula acoustic screen improves absorbing sound and lowering noise effect to extend propagation path.
(6) sound insulation filled layer can be compressed sound-absorbing sponge, and the pressed density of sound insulation filled layer is greater than left noise reduction
Layer and right noise reduction layer, enable the effect that partition noise transmission path is effectively realized at middle sound absorbing layer, so improve inverted L formula every
The absorbing sound and lowering noise effect of sound-screen.
(7) sound insulation filled layer can also be the wood shavings that are pressed, wash a meter gap there are various between sawdust particle, can
To effectively play the effect of absorption to noise, while the utilization rate for timber resources can also be improved using sawdust.
Detailed description of the invention
Fig. 1 is three-dimensional structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of inverted L formula acoustic screen side of the invention；
Fig. 3 is the structural schematic diagram in Fig. 2 at A.
Figure label explanation:
1 inverted L formula acoustic screen, 11 inner baffle plates, 12 outer soundproof plates, sound absorbing layer, 131 clamping plates, 132 sound insulation filled layers, 2 in 13
Sound-absorbing slot, 3 sound-absorption holes, 41 left noise reduction layers, 42 right noise reduction layers, 5 support rods.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description；Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments, is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the instruction such as term " on ", "lower", "inner", "outside", " top/bottom end "
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.In addition, term " first ", " second " are used for description purposes only, and cannot understand
For indication or suggestion relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " is set
Be equipped with ", " be arranged/connect ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, be also possible to removable
Connection is unloaded, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the connection inside two elements.It for the ordinary skill in the art, can be specific
Situation understands the concrete meaning of above-mentioned term in the present invention.
Embodiment 1:
A kind of noise abatement device applied to overpass referring to FIG. 1-2, the inverted L including being mounted on overpass two sides
Formula acoustic screen 1, inverted L formula acoustic screen 1 include inner baffle plate 11, middle sound absorbing layer 13 and outer soundproof plate 12, inner baffle plate 11, middle sound-absorbing
Layer 13 and outer soundproof plate 12 are sequentially distributed from inside to outside, fixed between inner baffle plate 11 and outer soundproof plate 12 and middle sound absorbing layer 13
It is connected with support rod 5, support rod 5 is hollow structure, so that sound-absorption hole 3 is in connection inner baffle plate 11 and outer soundproof plate 12
In the case of, also there is certain absorbing sound and lowering noise effect；
11 outer end of inner baffle plate, which is dug, multiple equally distributed sound-absorbing slots 2, and outer 12 inner end of soundproof plate cutting has multiple equal
The sound-absorption hole 3 of even distribution, and sound-absorbing slot 2 and sound-absorption hole 3 be not concordant with support rod 5, thus effectively avoid noise inverted L formula every
The case where linearly propagating in sound-screen 1 improves absorbing sound and lowering noise effect to extend propagation path, and inner baffle plate 11 is located at close
The side of overpass is filled with left noise reduction layer 41, middle sound absorbing layer 13 and outer soundproof plate between inner baffle plate 11 and middle sound absorbing layer 13
Right noise reduction layer 42 is filled between 12, the number of sound-absorbing slot 2 and sound-absorption hole 3 is corresponding, and multiple sound-absorbing slots 2 and multiple sound-absorption holes
3 it is alternate be interspersed, to change so that conduct the running route into the noise in inverted L formula acoustic screen 1 from sound-absorbing slot 2, increase
Adding it to conduct distance in inverted L formula acoustic screen 1 could conduct at sound-absorption hole 3, increase sound-absorbing effect.
Referring to Fig. 3, middle sound absorbing layer 13, which includes two, seals against each other fixed clamping plate 131, filled between two clamping plates 131
There is sound insulation filled layer 132, may be implemented by absorbing most of noise, so that the effect of the reflectivity of noise is effectively reduced, into
And influence of the noise to driver on overpass is reduced, safety is improved, left noise reduction layer 41 and right noise reduction layer 42 are in inverted L formula acoustic screen
Compressive state is in 1, so that penetration power of the noise in the two is reduced, to effectively intercept and absorb noise, and a left side disappears
The pressed density of sound-absorbing layer 41 is greater than the pressed density of right noise reduction layer 42, and the noise touched at left noise reduction layer 41 is bigger thus close
Conduction that is bigger, and then effectively preventing sound is spent, the noise reduction effect of inverted L formula acoustic screen 1, left noise reduction layer 41 and right noise reduction layer are improved
42 thickness are identical and the two is all made of sound-absorbing sponge and is made, so that left noise reduction layer 41 and right noise reduction layer 42 all have good sound-absorbing
Effect, sound insulation filled layer 132 can be compressed sound-absorbing sponge, and the pressed density of sound insulation filled layer 132 is greater than left noise reduction
Layer 41 and right noise reduction layer 42 enables and effectively realizes the effect in partition noise transmission path at middle sound absorbing layer 13, and then improves
The absorbing sound and lowering noise effect of inverted L formula acoustic screen 1.
Embodiment 2:
Sound insulation filled layer 132 can also be the wood shavings that are pressed, wash a meter gap there are various between sawdust particle, together
Sample can effectively play the effect of absorption to noise, while can also improve the utilization rate for timber resources using sawdust.
It is blocked under the barrier action of inverted L formula acoustic screen 1 first on overpass by the noise that automobile issues, reduces noise
Outside diffusivity, noise absorb part by sound-absorbing slot 2 first when by sound-absorbing slot 2, enter inverted L formula acoustic screen 1 later
It is interior, successively pass through compressed left noise reduction layer 41, the middle sound absorbing layer 13 with many particulate interspaces and compressed right noise reduction layer
42 absorb consumption, consume by multiple sound-absorbing, effectively reduce the decibel of noise, and decibel lesser sound in part is by inhaling at this time
Sound hole 3 is conducted to outside overpass, and most noise is absorbed reduction during this, and then is guaranteeing that conduction is smaller outward
In the case where sound, the reflectivity of noise is effectively reduced, to reduce influence of the noise to driver on overpass, improves safety
Property.
The foregoing is intended to be a preferred embodiment of the present invention；But scope of protection of the present invention is not limited thereto.
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
It improves design and is subject to equivalent substitution or change, should be covered by the scope of protection of the present invention.
Claims (7)
1. a kind of noise abatement device applied to overpass, the inverted L formula acoustic screen (1) including being mounted on overpass two sides,
Be characterized in that: the inverted L formula acoustic screen (1) includes inner baffle plate (11), middle sound absorbing layer (13) and outer soundproof plate (12), it is described in
Soundproof plate (11), middle sound absorbing layer (13) and outer soundproof plate (12) are sequentially distributed from inside to outside, the inner baffle plate (11) and outside every
It is fixedly connected between soundboard (12) and middle sound absorbing layer (13) support rod (5), the inner baffle plate (11) is located at close to overhead
The side of bridge, inner baffle plate (11) outer end, which is dug, multiple equally distributed sound-absorbing slots (2), in the outer soundproof plate (12)
End, which is dug, multiple equally distributed sound-absorption holes (3), disappears between the inner baffle plate (11) and middle sound absorbing layer (13) filled with a left side
Sound-absorbing layer (41) is filled with right noise reduction layer (42) between the middle sound absorbing layer (13) and outer soundproof plate (12), the middle sound absorbing layer
(13) include two to seal against each other fixed clamping plate (131), sound insulation filled layer is filled between two clamping plates (131)
(132)。
2. a kind of noise abatement device applied to overpass according to claim 1, it is characterised in that: the sound-absorbing slot
(2) corresponding with the number of sound-absorption hole (3), and multiple sound-absorbing slots (2) and multiple sound-absorption holes (3) are alternate is interspersed.
3. a kind of noise abatement device applied to overpass according to claim 1, it is characterised in that: the left noise reduction
Layer (41) and right noise reduction layer (42) are in compressive state, and the pressed density of left noise reduction layer (41) in inverted L formula acoustic screen (1)
Greater than the pressed density of right noise reduction layer (42).
4. a kind of noise abatement device applied to overpass according to claim 1, it is characterised in that: the left noise reduction
Layer (41) is identical with right noise reduction layer (42) thickness and the two is all made of sound-absorbing sponge and is made.
5. a kind of noise abatement device applied to overpass according to claim 1, it is characterised in that: the support rod
It (5) is hollow structure, and sound-absorbing slot (2) and sound-absorption hole (3) be not concordant with support rod (5).
6. a kind of noise abatement device applied to overpass according to claim 1, it is characterised in that: the sound insulation is filled out
Fill layer (132) can for compressed sound-absorbing sponge, and the pressed density of sound insulation filled layer (132) be greater than left noise reduction layer (41) and
Right noise reduction layer (42).
7. a kind of noise abatement device applied to overpass according to claim 1, it is characterised in that: the sound insulation is filled out
Filling layer (132) can also be the wood shavings pressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910649307.7A CN110219258A (en) | 2019-07-18 | 2019-07-18 | A kind of noise abatement device applied to overpass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910649307.7A CN110219258A (en) | 2019-07-18 | 2019-07-18 | A kind of noise abatement device applied to overpass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110219258A true CN110219258A (en) | 2019-09-10 |
Family
ID=67813528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910649307.7A Withdrawn CN110219258A (en) | 2019-07-18 | 2019-07-18 | A kind of noise abatement device applied to overpass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110219258A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112482276A (en) * | 2020-11-16 | 2021-03-12 | 赵龙龙 | Municipal administration highway median |
-
2019
- 2019-07-18 CN CN201910649307.7A patent/CN110219258A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112482276A (en) * | 2020-11-16 | 2021-03-12 | 赵龙龙 | Municipal administration highway median |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190910 |
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| WW01 | Invention patent application withdrawn after publication |