CN110863576A - Pressure relief type double-sided sound absorption box - Google Patents
Pressure relief type double-sided sound absorption box Download PDFInfo
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- CN110863576A CN110863576A CN201911156443.9A CN201911156443A CN110863576A CN 110863576 A CN110863576 A CN 110863576A CN 201911156443 A CN201911156443 A CN 201911156443A CN 110863576 A CN110863576 A CN 110863576A
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- sound absorption
- sound
- plate
- pore plate
- framework
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
Abstract
The utility model provides a two-sided box that absorbs sound of pressure release formula, belongs to the environmental protection field, and mainly used falls makes an uproar, and it comprises first sound absorption orifice plate, second sound absorption orifice plate, sound absorption insulator, skeleton, cardboard. The sound absorption and insulation body is provided with clamping plates at the upper end and the lower end, sound absorption cotton is pasted on two sides of a sound insulation plate of the sound absorption and insulation body, and the sound absorption cotton and the sound insulation plate are integrally wrapped by hydrophobic cloth; the framework group is connected with the first sound absorption pore plate and arranged in the first sound absorption pore plate, the framework group consists of two Z-shaped frameworks, and the two Z-shaped frameworks are spaced at a distance of 20-40 mm; the first sound absorption pore plate and the second sound absorption pore plate are buckled and connected with each other, and the sound absorption insulator, the framework and the clamping plate are buckled in the cavity between the first sound absorption pore plate and the second sound absorption pore plate. The double-sided sound absorption box is simple to manufacture, has good structural stress, and can perform pressure relief on the premise of meeting the sound absorption effect, thereby reducing the action of wind pressure and improving the safety.
Description
Technical Field
The invention belongs to the field of environmental protection, and particularly relates to a pressure relief type double-sided sound absorption box which is mainly used for places with noise reduction requirements on the middle sides of multi-strand railways, bridges, roadbeds and the like, places with noise reduction requirements on two sides of a sound barrier, particularly environments with large pulsating wind pressure and large impact force.
Background
The problem of noise control is more and more emphasized by people, and environmental noise is directly related to the quality of life of people and even has important influence on the physiological and psychological health of people. Sound barriers are important installations for noise control of rail transit, elevated roads and highways, and current sound barriers are generally installed on one or both sides of a road or track line. In order to further reduce the noise of rail transit and roads, it is sometimes necessary to install a sound barrier with a relatively high height between the lines (e.g., between the up-and down-links) of railways (including urban rail transit) or between the lanes of a road, and a double-sided sound-absorbing sound barrier is required because both sides of the barrier face the noise source. Furthermore, due to the limitation of installation space, the width of the double-sided sound absorption type sound barrier is often strictly limited. Especially when a high-speed train passes by, the environment with large pulsating wind pressure and large impact force brings certain challenges to the sound absorption effect and the mechanical strength of the sound barriers at two sides of the vehicle. The published double-sided sound absorption box is complex to manufacture, and has large material usage amount, higher requirement on a main supporting system and higher cost on the premise of meeting the mechanical property of the box.
Disclosure of Invention
The pressure relief type double-sided sound absorption box is simple to manufacture, good in structural stress and capable of relieving pressure on the premise of meeting the sound absorption effect, thereby reducing the action of wind pressure and improving the safety.
A pressure relief type double-sided sound absorption box comprises a first sound absorption pore plate, a second sound absorption pore plate, a sound absorption insulator, a framework and a clamping plate. The sound absorption and insulation body is provided with clamping plates at the upper end and the lower end, sound absorption cotton is pasted on two sides of a sound insulation plate of the sound absorption and insulation body, and the sound absorption cotton and the sound insulation plate are integrally wrapped by hydrophobic cloth;
the framework group is connected with the first sound absorption pore plate and arranged in the first sound absorption pore plate, the framework group consists of two Z-shaped frameworks, and the two Z-shaped frameworks are spaced at a distance of 20-40 mm;
the first sound absorption pore plate and the second sound absorption pore plate are buckled and connected with each other, and the sound absorption insulator, the framework and the clamping plate are buckled in the cavity between the first sound absorption pore plate and the second sound absorption pore plate.
The sound absorption and insulation body can absorb sound at two sides, and the sound is insulated by the sound insulation plate at the middle part when the noise reaches, so that the sound is reflected to the sound absorption cotton to absorb the sound again.
The sound insulation board is a calcium silicate board or a cement board, and has a good sound insulation effect.
The sound absorption cotton is rock wool or slag wool, and is a main sound absorption material.
The hydrophobic cloth is made of a material which can be air-permeable but not water-permeable, so that the sound absorption cotton is protected, and the water absorption cotton is prevented from expanding and collapsing when meeting water;
the Z-shaped framework is a Z-shaped strip thin plate bending component, and two groups of Z-shaped strip thin plate bending components are distributed in the sound absorption box at equal intervals.
The Z-shaped framework can be used as a supporting framework to enhance the self mechanical property and mechanical property of the sound absorption box and can also be used as a pressure relief channel. The surface of the framework is coated with damping paint, and the sound absorption effect is achieved.
The cardboard is the bending sheet member, installs about inhaling the sound insulation body for the chucking inhales the sound insulation body, the removal of restriction sound insulation body.
The invention solves the applicability of the place for double-sided sound absorption requirement.
Compared with the prior art, the invention has the following advantages:
1. the second sound absorption pore plate and the first sound absorption pore plate form a pressure relief type double-sided sound absorption box, so that double-sided sound absorption effect can be realized;
2. the existing die can be continuously used, and is simple to manufacture and convenient to install;
3. the pressure relief channel of the framework can reduce the body form factor of the structure and increase the safety factor of the structure; the using amount of the supporting material can be saved under the condition of the same supporting strength, thereby reducing the cost.
Drawings
FIG. 1 is a front elevation view of a pressure relief type double-sided sound absorption box of the present invention;
FIG. 2 is a top view of a pressure relief type double-sided sound absorption box of the present invention;
FIG. 3 is a cross-sectional view of a pressure relief type double-sided sound absorption box of the present invention;
in the figure, 1-a first sound absorption pore plate, 2-a second sound absorption pore plate, 3-a sound insulation plate, 4-a clamping plate, 5-sound absorption cotton, 6-a framework group and 7-a rivet.
Detailed Description
As shown in fig. 1, 2 and 3, the pressure relief type double-sided sound absorption box has a specification of 1960 × 500 × 140mm, and is composed of a first sound absorption pore plate 1, a second sound absorption pore plate 2, a sound insulation plate 3, sound absorption cotton 5, a framework 6 and a clamping plate 4.
When in manufacture, two groups of skeleton groups 6 are uniformly and pre-placed in the first sound absorption pore plate 1, and a channel with the width of 30mm is formed between every two groups of skeletons at an interval of 30 mm;
the sound absorption and insulation body is formed by adhering sound absorption cotton 4 on two sides of a sound insulation plate 3 and integrally wrapping the sound absorption and insulation body by hydrophobic cloth, clamping plates 4 are fixedly arranged at the upper end and the lower end of the sound absorption and insulation body, and the sound absorption and insulation body and the clamping plates are placed in an area formed by a framework 6 and a first sound absorption pore plate 1;
the sound absorption and insulation body is arranged between the first sound absorption pore plate 1 and the second sound absorption pore plate 2
And finally, buckling the second sound absorption pore plate 2 with the first sound absorption pore plate 1 and fixing the second sound absorption pore plate by a rivet 7. The rivet 7 penetrates through the first sound absorption pore plate 1 and the second sound absorption pore plate 2 to be fixed with the framework 6.
The first sound absorption pore plate is a 1.5mm aluminum plate bending thin plate part, holes with the diameter of 6mm are evenly distributed on the surface of the first sound absorption pore plate, and the aperture ratio is 25%.
The second sound absorption pore plate 2 is also a 1.5mm aluminum bent thin plate part, is matched with the first sound absorption pore plate and is buckled into a cuboid; holes with the diameter of 6mm are uniformly distributed on the surface, and the opening rate is 25 percent.
The sound absorption and insulation body is a cuboid with the size of 650 multiplied by 470 multiplied by 88mm which is composed of a sound insulation plate 3, sound absorption cotton 5 and hydrophobic cloth.
The thickness of the sound insulation board 3 is 8mm, the thickness of the sound absorption cotton 5 is 40mm, and the thickness of the hydrophobic cloth is 1.5 mm. The 8mm sound insulation board is centered, sound absorption cotton is glued on two sides of the sound insulation board, and then the sound absorption cotton is wrapped by hydrophobic cloth.
The sound absorption and insulation body can absorb sound on two sides, and the sound insulation plate at the middle part of the sound absorption and insulation body can insulate sound when the noise reaches, so that the sound is reflected to the sound absorption cotton to absorb the sound again.
The sound insulation board 3 is a calcium silicate board or a cement board with the thickness of 8mm, and has a good sound insulation effect.
The hydrophobic cloth is made of a material which can be air-permeable but not water-permeable, so that the sound absorption cotton is protected, and the water absorption cotton is prevented from expanding and collapsing when meeting water;
the Z-shaped framework 6 is a Z-shaped strip sheet bending component of an aluminized zinc plate with the thickness of 1.0mm, and two bending components are uniformly distributed in the sound absorption box. The framework 6 can be used as a supporting framework to enhance the self mechanical property and mechanical property of the sound absorption box, and can also be used as a pressure relief channel. The surface of the framework is coated with damping paint, and the sound absorption effect is achieved.
The clamping plate 4 is an aluminum-zinc-plated bent thin plate component with the thickness of 1.0mm, the length of the thin plate component is 135mm, the width of the thin plate component is 30mm, and the width of the clamping groove is 90mm, and the clamping plate component is arranged above and below the sound absorption insulator and used for clamping the sound absorption insulator and limiting the movement of the sound absorption insulator.
Through tests, the pressure relief type double-sided sound absorption box has the advantages that the noise reduction coefficient can reach 0.78, the weighting sound insulation quantity can reach 32dB, the wind pressure resistance can reach 7kpa and cannot be damaged, the bending fracture resistance load is 7kpa and cannot be damaged, the area density is 31 kg/square meter, and other performances meet the standard requirements.
The double-sided sound absorption effect can be realized on the basis of not replacing the existing die, the manufacturing is simple, the installation is convenient, the pressure relief channel of the framework can reduce the size coefficient of the structure, and the safety coefficient of the structure is increased; the using amount of the supporting material can be saved under the condition of the same supporting strength, thereby reducing the cost.
Claims (3)
1. A pressure relief type double-sided sound absorption box is characterized by comprising a first sound absorption pore plate, a second sound absorption pore plate, a sound absorption insulator, a framework and a clamping plate; the sound absorption and insulation body is provided with clamping plates at the upper end and the lower end, sound absorption cotton is pasted on two sides of a sound insulation plate of the sound absorption and insulation body, and the sound absorption cotton and the sound insulation plate are integrally wrapped by hydrophobic cloth; the framework group is connected with the first sound absorption pore plate and arranged in the first sound absorption pore plate, the framework group consists of two Z-shaped frameworks, and the two Z-shaped frameworks are spaced at a distance of 20-40 mm; the first sound absorption pore plate and the second sound absorption pore plate are buckled and connected with each other, and the sound absorption insulator, the framework and the clamping plate are buckled in the cavity between the first sound absorption pore plate and the second sound absorption pore plate.
2. The pressure-release type double-sided sound-absorbing box as claimed in claim 1, wherein the first sound-absorbing orifice plate has holes with a diameter of 6mm uniformly distributed on the surface thereof and has an opening ratio of 25%.
3. The pressure-release type double-sided sound-absorbing box as claimed in claim 1, wherein the second sound-absorbing orifice plate has holes with a diameter of 6mm uniformly distributed on the surface thereof and an opening ratio of 25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911156443.9A CN110863576A (en) | 2019-11-22 | 2019-11-22 | Pressure relief type double-sided sound absorption box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911156443.9A CN110863576A (en) | 2019-11-22 | 2019-11-22 | Pressure relief type double-sided sound absorption box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110863576A true CN110863576A (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911156443.9A Pending CN110863576A (en) | 2019-11-22 | 2019-11-22 | Pressure relief type double-sided sound absorption box |
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| CN (1) | CN110863576A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441269A (en) * | 2020-04-11 | 2020-07-24 | 山西尚风科技股份有限公司 | Sound absorption and insulation body |
| CN111705686A (en) * | 2020-06-01 | 2020-09-25 | 中国铁路经济规划研究院有限公司 | Folded plate buckling type railway metal sound barrier unit plate |
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| GB201014559D0 (en) * | 2010-09-01 | 2010-10-13 | Echo Barrier Ltd | Sound absorbent barrier |
| CN201671197U (en) * | 2010-05-26 | 2010-12-15 | 南京新光环保科技工程有限公司 | Perforated metallic sound barrier |
| KR20130007266U (en) * | 2012-06-12 | 2013-12-20 | 주식회사 에이브이티 | noise barrier adjacent to railway |
| CN104100013A (en) * | 2014-07-28 | 2014-10-15 | 马鞍山创宁新材料科技有限公司 | Space-saving type construction method for indoor efficient sound insulation system |
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| CN110258374A (en) * | 2019-07-17 | 2019-09-20 | 辽阳沈铁小屯轨枕水泥有限公司 | The two-sided Felt of high speed railway sound barrier metal composite |
| CN211572054U (en) * | 2019-11-22 | 2020-09-25 | 山西尚风科技股份有限公司 | Pressure relief type double-sided sound absorption box |
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2019
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| DE10330453A1 (en) * | 2003-07-05 | 2005-01-27 | Karosseriewerk Krämer GmbH | Wall structure for absorption of airborne sound comprises two boundary layers and a compound separation layer forming spaces which are filled with an absorption material |
| CN2688785Y (en) * | 2004-01-14 | 2005-03-30 | 李国华 | Crossed slotted closed rib seam acoustic absorbing board with double face |
| CN201671197U (en) * | 2010-05-26 | 2010-12-15 | 南京新光环保科技工程有限公司 | Perforated metallic sound barrier |
| GB201014559D0 (en) * | 2010-09-01 | 2010-10-13 | Echo Barrier Ltd | Sound absorbent barrier |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441269A (en) * | 2020-04-11 | 2020-07-24 | 山西尚风科技股份有限公司 | Sound absorption and insulation body |
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| CN111705686A (en) * | 2020-06-01 | 2020-09-25 | 中国铁路经济规划研究院有限公司 | Folded plate buckling type railway metal sound barrier unit plate |
| CN111705686B (en) * | 2020-06-01 | 2022-09-16 | 中国铁路经济规划研究院有限公司 | Folded plate buckling type railway metal sound barrier unit plate |
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Application publication date: 20200306 |