CN107034798B - Sound-proof screen - Google Patents
Sound-proof screen Download PDFInfo
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- CN107034798B CN107034798B CN201710297774.9A CN201710297774A CN107034798B CN 107034798 B CN107034798 B CN 107034798B CN 201710297774 A CN201710297774 A CN 201710297774A CN 107034798 B CN107034798 B CN 107034798B
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- sound
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- porous metal
- noise
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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
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a sound insulation screen which comprises a cover body uniformly distributed with sound inlets and a sound absorption plate arranged in the cover body, wherein the sound absorption plate is of a plate-shaped structure formed by porous metal films. After the noise enters the cover body from the sound inlet ports uniformly distributed on the cover body, the noise is weakened, and then the noise is deeply reduced through the small holes in the porous metal film under the action of the plate-shaped structure formed by the porous metal film arranged in the cover body, so that an ideal noise reduction effect can be achieved, and the sound absorption plate formed by the porous metal film is light in weight and cannot cause installation burden.
Description
Technical Field
The invention relates to the technical field of sound insulation and noise reduction, in particular to a sound insulation screen.
Background
Conventional sound insulation structures are generally cast using reinforced concrete, and are mainly used to block the transmission of sound. For the sound insulation wall, because the self material weight is larger, if the sound insulation wall is used on a viaduct, the stress of a pier of the viaduct is increased, and the construction cost is too high, so that the traditional sound insulation structure poured by reinforced concrete is not suitable for being constructed on an urban overpass.
In order to solve the above problems, there have been developed in the prior art soundproofing barriers of lighter weight, generally having a height of about 4 to 5 m, a single net-like structure or a grid-like structure, and having a top end generally designed to be bent in a direction of a road. After traditional sound-proof barrier is installed, 6-8 decibels of making an uproar can effectively fall, nevertheless because the material itself that current sound-proof barrier chose to use has certain limitation, inhales the sound and gives sound insulation and fall the effect of making an uproar and all limit, to some high floors and with the too close resident's of highway distance family noise reduction range of making an uproar is limited. The noise in most residents 'homes for low floors can be reduced, but the noise reduction effect in residents' homes for high floors is not obvious. Therefore, the traditional sound insulation screen on the viaduct hardly achieves an ideal noise reduction effect, and a sound insulation screen with light weight and an ideal sound insulation and noise reduction effect is urgently needed at present.
Disclosure of Invention
The invention mainly aims to provide a sound-proof screen to solve the problem that the sound-proof screen in the prior art is unsatisfactory in sound-proof and noise-reducing effects.
In order to achieve the above object, a sound-proof screen is provided. The sound insulation screen comprises a cover body with uniformly distributed sound inlets and a sound absorption plate arranged in the cover body, wherein the sound absorption plate is of a plate-shaped structure formed by porous metal films. After the noise enters the cover body from the sound inlet ports uniformly distributed on the cover body, the noise is weakened, and then the noise is deeply reduced through the small holes in the porous metal film under the action of the plate-shaped structure formed by the porous metal film arranged in the cover body, so that an ideal noise reduction effect can be achieved, and the sound absorption plate formed by the porous metal film is light in weight and cannot cause installation burden. In addition, the invention also has the function of reducing the dust on the road surface when being applied, in particular to a highway or a viaduct.
Further, the plate-shaped structure is a labyrinth-shaped hollow plate structure. The labyrinth-shaped hollow plate structure can enable the entering noise to be gradually weakened through multiple reflections, so that the noise is further weakened, and the influence caused by the noise is greatly reduced.
Furthermore, the labyrinth-shaped hollow plate structure comprises a plate main body and protrusions extending from the plate main body at intervals, and inverted T-shaped grooves are formed between every two adjacent protrusions. Thus, the labyrinth-shaped hollow plate structure is formed, and noise is repeatedly reflected and weakened among the T-shaped grooves.
Further, the sound inlet is a strip-shaped hole. Thereby facilitating the entry of noise into the sound barrier.
Further, the sound inlet is in a shape of a shutter. Therefore, the noise is weakened by the uniformly distributed sound inlet when entering the sound insulation screen, and each independent sound inlet can also reflect the noise to weaken the noise.
Further, the LED lamp also comprises a light-transmitting structure connected with the cover body. The light-transmitting structure is convenient for the invention to transmit light in practical use, and is particularly used in environments such as viaducts, expressways and the like.
Furthermore, the LED lamp also comprises a supporting frame for supporting the cover body, and the light-transmitting structure is glass embedded in the supporting frame. Therefore, the cover body and the sound-absorbing board inside the cover body are effectively supported, and the light-transmitting structure of the glass is integrated, so that the noise is reduced, and meanwhile, the light rays in the practical environment are not influenced.
Furthermore, the cover body is connected with the supporting frame in a clamping mode. Therefore, the cover body and the supporting frame can be conveniently installed and detached.
Further, the porous metal film is a sheet formed of a solid solution alloy, a metal simple substance having a face-centered cubic structure, or a metal porous material in which a metal simple substance having a body-centered cubic structure is a matrix phase. The porous metal film formed by adopting the materials can greatly reduce noise, and the formed attraction plate has light weight.
Further, the porous metal film has a thickness of 5 to 1500 μm, an average pore diameter of 0.05 to 100 μm, and a porosity of 15 to 70%. The noise reduction effect of the porous metal film under the condition is optimal.
Therefore, the sound absorption board can achieve an ideal noise reduction effect, and the sound absorption board formed by the porous metal film is light in weight and cannot cause installation burden. The invention is mainly applied to the field of noise reduction and silencing, and is particularly suitable for being used as sound insulation screens on two sides of expressways and viaducts.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to assist in understanding the invention, and are included to explain the principles of the invention and not to limit the invention unduly. In the drawings:
fig. 1 is a front view of the sound barrier of the present invention.
Fig. 2 isbase:Sub>A schematic cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.
Fig. 3 is an enlarged structural schematic diagram of C in fig. 2.
Fig. 4 is a perspective view of the sound barrier of the present invention.
Fig. 5 is a front view of the sound-absorbing panel of the present invention.
Fig. 6 is a schematic cross-sectional view taken along line B-B of fig. 5.
Fig. 7 is a perspective view of the sound-absorbing panel of the present invention.
Detailed Description
The invention will be described more fully hereinafter with reference to the accompanying drawings. Those skilled in the art will be able to implement the invention based on these teachings. Before the present invention is described in detail with reference to the accompanying drawings, it is to be noted that:
(1) The technical solutions and features provided in the present invention in each part including the following description may be combined with each other without conflict.
(2) The embodiments of the invention described in the following description are generally only examples of a subset of the invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.
(3) Description of terms in the present invention. The terms "comprising" and "having," and any variations thereof, in the description and claims of this invention and the related sections, are intended to cover non-exclusive inclusions. The term "thermally compensated" means capable of avoiding deformation due to a change in ambient temperature; the term "average pore size" refers to the diameter of pores on the surface of an object, and is the average size of the pores in a porous solid; the term "porosity" refers to the percentage of the pore volume in a porous material to the total volume of the porous material in its natural state.
The sound insulation screen comprises a cover body 1 evenly distributed with sound inlets 11 and a sound absorption plate 4 arranged in the cover body 1, wherein the sound absorption plate 4 is of a plate-shaped structure formed by porous metal films.
The plate-shaped structure is a labyrinth-shaped hollow plate structure.
The labyrinth-shaped hollow plate structure comprises a plate main body and protrusions 410 extending from the plate main body at intervals, wherein inverted T-shaped grooves are formed between every two adjacent protrusions 410.
The sound inlet 11 is a strip-shaped hole.
The sound inlet 11 is in a shape of a louver.
And the light-transmitting structure is connected with the cover body 1.
The LED lamp further comprises a supporting frame 3 for supporting the cover body 1, and the light-transmitting structure is glass 2 embedded in the supporting frame 3.
The cover body 1 is connected with the supporting frame 3 in a clamping mode.
The porous metal film is a sheet formed by solid solution alloy, a metal simple substance with a face-centered cubic structure or a metal porous material with a body-centered cubic structure as a matrix phase.
The thickness of the porous metal film is 5-1500 mu m, the average pore diameter is 0.05-100 mu m, and the porosity is 15-70%.
Fig. 1 is a front view of the sound barrier of the present invention. Fig. 4 is a perspective view of the sound barrier of the present invention. Referring to fig. 1 and 4, the soundproof screen of the present invention includes a cover body 1 and a support frame 3 provided under the cover body 1 for supporting the cover body 1, the support frame 3 being embedded with glass 2. The mask body 1 is a hollow shell, sound inlets 11 are uniformly distributed on the surface of the hollow shell, the sound inlets 11 are strip-shaped holes, and the hollow shell is integrally in an arc-shaped plate shape; the bottom of the supporting frame 3 is provided with supporting feet 310, the supporting frame 3 can be made of stainless steel materials, and the supporting frame 3 is connected with the glass 2 through adhesive bonding; the glass 2 is a glass material with a good light transmission effect. Wherein the supporting cover body 1 is connected with the supporting frame 3 in a clamping way.
Fig. 2 isbase:Sub>A schematic cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1. As shown in fig. 2, a suction plate 4 is provided inside the cover 1 in a manner corresponding to the cover 1. Fig. 3 is an enlarged structural view of C in fig. 2, and as shown in fig. 3, the sound inlet 11 is a louver, that is, an opening similar to a louver and provided with an inclined plate 110. Fig. 5 is a front view of the sound-absorbing panel of the present invention. Fig. 6 is a schematic cross-sectional view taken along line B-B of fig. 5. Fig. 7 is a perspective view of the sound-absorbing panel of the present invention. As shown in fig. 3, 5, 6, and 7, the sound-absorbing plate 4 is a hollow plate-shaped structure, the hollow plate-shaped structure includes a plate main body and protrusions 410 extending from the plate main body at intervals, inverted T-shaped grooves are formed between adjacent protrusions 410, the sound-absorbing plate 4 is installed in the cover body 1 in the form of sliding grooves, the upper frame of the support frame 3 is provided with sliding grooves, and the sliding groove structure is not shown in the drawings.
The porous metal film is a sheet formed by solid solution alloy, a metal simple substance with a face-centered cubic structure or a metal porous material with a body-centered cubic structure as a matrix phase.
The thickness of the porous metal film is 5-1500 mu m, the average pore diameter is 0.05-100 mu m, and the porosity is 15-70%. Selecting an acoustic board consisting of a porous metal film with the thickness of 5 mu m, the average pore diameter of 0.05 mu m and the porosity of 15 mu m; selecting an acoustic board formed by a porous metal film with the thickness of 500 mu m, the average pore diameter of 50 mu m and the porosity of 45 mu m; the sound-absorbing board consisting of the porous metal film with the thickness of 1500 mu m, the average pore diameter of 100 mu m and the porosity of 70 percent is selected to respectively form the sound-absorbing screen to carry out noise reduction test under the same condition, and the ideal noise reduction effect can be achieved.
When the sound-proof screen is applied to two sides of a viaduct, the length of the sound-proof screen is changed according to actual needs, noise generated by vehicles travelling on the viaduct enters the cover body 1 from the sound inlets 11 uniformly distributed on the cover body 1, the noise is weakened under the action of the sound inlets 11 and the reflection of the louver openings, then the noise is deeply reduced through the small holes in the porous metal film under the action of the sound-absorbing board 4 formed by the porous metal film arranged in the sound-absorbing board 4, meanwhile, the labyrinth sound-absorbing board 4 can enable the entering noise to be gradually weakened through multiple reflections in the sound-absorbing board 4, the noise is further weakened, and the influence brought by the noise is greatly reduced. From this can reach the noise reduction effect of ideal, the abatvoix quality that porous metal membrane constitutes is very light, can not cause the installation burden, can both obviously reduce to some high floors and the noise in the resident family of the distance too near with the highway. In addition, the invention also has the function of reducing the dust on the road surface when being applied to the expressway or the viaduct.
Claims (6)
1. The sound insulation screen is characterized by comprising a cover body (1) uniformly distributed with sound inlets (11) and a sound absorption board (4) arranged in the cover body (1), wherein the sound absorption board (4) is of a plate-shaped structure formed by porous metal films; the porous metal film is a sheet formed by solid solution alloy, a metal simple substance with a face-centered cubic structure or a metal porous material with a body-centered cubic structure as a matrix phase; the thickness of the porous metal film is 5-1500 mu m, the average pore diameter is 0.05-100 mu m, and the porosity is 15-70%; the plate-shaped structure is a labyrinth-shaped hollow plate structure; the labyrinth-shaped hollow plate structure comprises a plate main body and protrusions (410) extending from the plate main body at intervals, wherein inverted T-shaped grooves are formed between every two adjacent protrusions (410).
2. A sound-insulating panel as claimed in claim 1, characterized in that the sound inlet (11) is a strip-shaped hole.
3. A sound barrier as defined in claim 1, wherein said sound inlet (11) is louvered.
4. A sound barrier as defined in claim 1, further comprising a light transmitting structure connected to the enclosure (1).
5. A sound-proofing screen according to claim 4, characterized in that it further comprises a supporting frame (3) supporting the cover body (1), the light-transmitting structure being a glass (2) embedded in the supporting frame (3).
6. A sound barrier as defined in claim 5, characterized in that the cover (1) is snap-connected to the support frame (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710297774.9A CN107034798B (en) | 2017-04-29 | 2017-04-29 | Sound-proof screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710297774.9A CN107034798B (en) | 2017-04-29 | 2017-04-29 | Sound-proof screen |
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| CN107034798A CN107034798A (en) | 2017-08-11 |
| CN107034798B true CN107034798B (en) | 2023-04-07 |
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| CN201710297774.9A Active CN107034798B (en) | 2017-04-29 | 2017-04-29 | Sound-proof screen |
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| CN108797408B (en) * | 2018-07-17 | 2021-04-06 | 吴绍娜 | Bridge sound insulation structure that municipal works were used |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205875003U (en) * | 2016-06-27 | 2017-01-11 | 安徽忠明建设工程有限公司 | Highway sound insulation wall |
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| DE19823139C2 (en) * | 1998-04-01 | 2000-09-07 | Jerzy Lech | Soundproofing interior or exterior wall cladding |
| KR200192641Y1 (en) * | 2000-03-23 | 2000-09-01 | 임충현 | A sound-insulating plate of sound absorption type |
| CN2668687Y (en) * | 2003-12-29 | 2005-01-05 | 上海西飞隔音装备有限公司 | Sound-absorbing-insulating traffic screen panel |
| TWM263376U (en) * | 2004-06-04 | 2005-05-01 | Bing-Ming Lai | Dual-insertion-type acoustic board |
| CN101175887B (en) * | 2006-04-27 | 2011-04-13 | 铃木政夫 | Acoustical shield device |
| KR100787862B1 (en) * | 2007-04-10 | 2007-12-27 | 김영미 | The sound-absorbing building panel |
| IT1394452B1 (en) * | 2008-11-19 | 2012-06-15 | Angelico | NOISE PANEL. |
| CN201358520Y (en) * | 2009-02-10 | 2009-12-09 | 江苏省交通规划设计院有限公司 | Resonant sound absorption box adopting structure of periodically diffused split |
| CN103046484A (en) * | 2011-10-11 | 2013-04-17 | 无锡市德林环保工程有限公司 | Louvered hole-punched acoustic board |
| CN202730667U (en) * | 2012-08-25 | 2013-02-13 | 山西普泰发泡铝制造有限公司 | Sound-insulation board for road |
| CN104727244A (en) * | 2015-03-25 | 2015-06-24 | 成都中弘轨道交通环保产业股份有限公司 | Metal and ceramic composite sound barrier sound absorption and insulation unit plate structure |
| CN105464234A (en) * | 2015-12-29 | 2016-04-06 | 四川正升声学科技有限公司 | Sound absorbing plate of sound barrier and sound absorbing structure thereof |
| CN105803965B (en) * | 2016-04-28 | 2018-04-10 | 中国铁道科学研究院 | A kind of broadband sound absorption cell board |
| CN106000123B (en) * | 2016-05-27 | 2019-11-01 | 成都易态科技有限公司 | The preparation method of porous membrane |
| CN207314177U (en) * | 2017-04-29 | 2018-05-04 | 成都易态科技有限公司 | Gobo |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205875003U (en) * | 2016-06-27 | 2017-01-11 | 安徽忠明建设工程有限公司 | Highway sound insulation wall |
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