CN107044172B - Sound absorbing device - Google Patents
Sound absorbing device Download PDFInfo
- Publication number
- CN107044172B CN107044172B CN201710249860.2A CN201710249860A CN107044172B CN 107044172 B CN107044172 B CN 107044172B CN 201710249860 A CN201710249860 A CN 201710249860A CN 107044172 B CN107044172 B CN 107044172B
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- Prior art keywords
- sound absorption
- sound
- sound absorbing
- installation
- absorbing device
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 89
- 238000009434 installation Methods 0.000 claims abstract description 41
- 229910052751 metal Inorganic materials 0.000 claims abstract description 40
- 239000002184 metal Substances 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims description 12
- 239000006096 absorbing agent Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011491 glass wool Substances 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229920002799 BoPET Polymers 0.000 claims description 2
- 239000005041 Mylar™ Substances 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 17
- 230000007547 defect Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 239000012634 fragment Substances 0.000 abstract description 4
- 238000004891 communication Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 208000013407 communication difficulty Diseases 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- E04B1/8209—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 sound absorbing devices
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Building Environments (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention belongs to the technical field of noise reduction, and particularly relates to a sound absorption device. The present invention provides a sound absorbing device, comprising: installing keels, sound absorption layers and connecting units; the installation keel is connected with the wall through the connecting unit, and the sound absorption layer is arranged between the installation keel and the wall; the installation fossil fragments comprise parallel metal sheet, and the upper surface of sound absorbing layer is the wave sound absorbing layer. In the technical scheme provided by the invention, the mounting keels are arranged in parallel, the wavy sound absorption layer is inserted into the gap between the mounting keels and the wall, the whole mounting process is simple, convenient and quick, a large number of connecting parts are saved, and the appearance is attractive; meanwhile, the wavy sound absorption layer can further increase the sound absorption area, and compared with the flat plate sound absorption layer, the sound absorption area can be increased by more than 22%, so that the sound absorption effect is effectively optimized. The sound absorption device provided by the invention solves the technical defects of complicated installation, high cost of parts and unattractive finished products in the prior art.
Description
Technical Field
The invention belongs to the technical field of noise reduction, and particularly relates to a sound absorption device.
Background
When the indoor reverberation sound is too high, the indoor and outdoor sound pollution is caused, the communication of people is influenced, the sound of the other party is not clear, and the communication effect is influenced. When the communication difficulty is perceived as unclear, the direct sound and the reflected sound are overlapped together mainly due to the reflection of sound by the surface of the wall body or the ceiling, so that the sound becomes ambiguous and unclear. If the method of increasing the sound source is adopted to increase the direct sound, the reflected sound is also increased, making it more difficult to listen to the speech or to communicate the language in the region where these direct sound and reflected sound overlap. In order to reduce the room reverberation time, to make the room have a suitable sound environment, it is a common practice to add sound absorbing liners to the walls.
In the prior art, the sound absorbing liner is installed by preparing a block of material for installation in the field. Firstly, arranging Z-shaped or U-shaped keels in two directions of transverse and vertical on a wall surface according to the distance, and fixing the keels on the wall by using explosion screws so that the keels are distributed in a grid shape; then, the keels are filled with sound absorbing materials, and finally metal hole sheets are used as the facing surfaces on the keels distributed in the grid, and the keels are fixed by blind nails. However, the prior art installation method uses a very large number of keels, resulting in a very large number of corresponding explosive screws and blind rivets at the time of final installation of the metal hole sheet, which not only increases the cost of installing the fitting but also increases the labor cost of installation. In addition, because of the distribution of the grid, the finished surfaces of the sound absorption lining are difficult to align one by one, the finished surfaces are not attractive, and the finished surfaces have too many blind nails, so that the attractiveness is reduced.
Therefore, a sound absorption device is developed to solve the technical defects of complicated installation, high cost of parts and unattractive finished products of the sound absorption device in the prior art, and the sound absorption device becomes a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a sound absorber for solving the technical defects of complicated installation, high cost of parts and unattractive finished products in the prior art.
The present invention provides a sound absorbing device including: installing keels, sound absorption layers and connecting units;
the installation keel is connected with a wall through the connecting unit, and the sound absorption layer is arranged between the installation keel and the wall;
the installation fossil fragments comprise parallel metal sheet, the upper surface of sound absorbing layer is the wave sound absorbing layer.
Preferably, the sound absorbing layer includes: perforated metal sheet and insulating acoustic liner;
the perforated metal sheet is disposed on the upper surface of the insulating acoustic liner.
Preferably, the insulating acoustic liner is: glass wool and/or mineral wool.
Preferably, the aperture of the perforated metal plate is 1.0-3.2 mm, and the total area of the openings of the perforated metal plate accounts for 18-33% of the area of the perforated metal plate.
Preferably, the sound absorbing layer further comprises: a fixing part;
the fixing portion is disposed between the perforated metal plate and the insulating acoustic liner.
Preferably, the fixing portion is a mylar.
Preferably, the sound absorbing device further includes: a sealing unit;
the sealing unit is arranged outside the frame of the sound absorption layer.
Preferably, the sealing unit is selected from: one or more of galvanized sheet, aluminum sheet or stainless steel sheet.
Preferably, the connection unit includes: screw, U-shaped groove and T-shaped clamp;
the screw will the one end in U type groove is fixed on the wall, the other end in U type groove with the metal sheet passes through T type clamp is connected.
Preferably, the distance between adjacent metal plates is 500-1220 mm.
In summary, the present invention provides a sound absorbing device, including: installing keels, sound absorption layers and connecting units; the installation keel is connected with a wall through the connecting unit, and the sound absorption layer is arranged between the installation keel and the wall; the installation fossil fragments comprise parallel metal sheet, the upper surface of sound absorbing layer is the wave sound absorbing layer. In the technical scheme provided by the invention, the mounting keels are arranged in parallel, the wavy sound absorption layer is inserted into the gap between the mounting keels and the wall, the whole mounting process is simple, convenient and quick, a large number of connecting parts are saved, and the appearance is attractive; meanwhile, the wavy sound absorption layer can further increase the sound absorption area, and compared with the flat plate sound absorption layer, the sound absorption area can be increased by more than 22%, so that the sound absorption effect is effectively optimized. The sound absorption device provided by the invention solves the technical defects of complicated installation, high cost of parts and unattractive finished products in the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a sound absorption device according to an embodiment of the present invention;
fig. 2 is a front view of a sound absorber according to an embodiment of the present invention;
FIG. 3 is a side view of a sound absorber according to an embodiment of the present invention;
fig. 4 is a schematic partial enlarged view of a portion a of a sound absorber according to an embodiment of the present invention;
fig. 5 is a schematic view showing a part of a sound absorption device at B in a side view according to an embodiment of the present invention;
wherein the keel 1, perforated metal sheet 21, insulating acoustic liner 22, T-clip 31, U-shaped groove 32, screws 33 and sealing unit 4 are installed.
Detailed Description
The embodiment of the invention provides a sound absorption device which is used for solving the technical defects of complicated installation, high cost of parts and unattractive finished products of the sound absorption device in the prior art.
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order to explain the present invention in more detail, a sound absorbing device provided by an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 5, an embodiment of the present invention provides a sound absorbing device, including: the keel 1, the sound absorption layer and the connecting unit are installed; the installation keel 1 is connected with the wall through a connecting unit, and the sound absorption layer is arranged between the installation keel 1 and the wall; the installation keel 1 is composed of parallel metal plates, and the upper surface of the sound absorption layer is a wavy sound absorption layer.
In the technical scheme provided by the embodiment of the invention, the installation keels 1 are composed of the metal plates which are arranged in parallel, then the wavy sound absorption layers are inserted into the gaps between the installation keels 1 and the wall, the installation keels 1 are not required to be arranged in a grid shape, accordingly, the step of inserting the sound absorption layers is simpler and more convenient, the use quantity of the installation keels 1 is effectively reduced, furthermore, the use quantity of connecting pieces for connecting the installation keels 1 is correspondingly reduced in a large scale, the whole installation process is simple, convenient and quick, a large number of connecting parts are saved, and the appearance is attractive. Meanwhile, in the sound absorption device provided by the embodiment of the invention, compared with the flat plate sound absorption layer in the prior art, the wavy sound absorption layer can further increase the sound absorption area, and compared with the flat plate sound absorption layer, the sound absorption area can be increased by more than 22%, so that the sound absorption effect is effectively optimized. The sound absorption device provided by the embodiment of the invention solves the technical defects of complicated installation, high cost of parts and unattractive finished products of the sound absorption device in the prior art.
Further, the technical scheme is optimized, in order to achieve the protection effect on the sound absorption layer, the service life of the sound absorption structure in the sound absorption layer is effectively prolonged, and meanwhile, the sound absorption layer comprises: a perforated metal plate 21 and an insulating acoustic liner 22; the perforated metal sheet 21 is provided on the upper surface of the insulating acoustic liner 22. The perforated metal plate 21 can have good protection effect on the insulating acoustic liner 22, and sound can pass through the hole-shaped structure on the surface of the perforated metal plate 21 and enter the insulating acoustic liner 22 to finish the technical effect of noise reduction; meanwhile, in the actual use process, the surface of the perforated metal plate 21 can be sprayed into different styles according to the decoration style of the space to be noise reduced, and the like, so that the product is more attractive. During installation, the technical scheme provided by the invention can directly compound the sound absorption layers together before installation, the assembly efficiency is further improved, the use of fixed parts is reduced, the prior art is not required, and the metal plate is nailed on the surface of the keel after the sound absorption structure is installed, so that the assembly complexity is obviously reduced.
On the basis of ensuring good sound absorption and noise reduction effects of the insulating acoustic liner 22, the insulating acoustic liner 22 has the advantages of long service life, low cost and light weight and is convenient to install, and in the technical scheme provided by the embodiment of the invention, the insulating acoustic liner 22 is as follows: glass wool and/or mineral wool.
The technical personnel of the invention test and determine that the larger the aperture is, the higher the sound absorption rate is, and when the aperture reaches a certain value, the sound absorption rate starts to be reduced instead. Therefore, in order to achieve better acoustic performance, in the sound absorption device provided by the embodiment of the invention, the aperture of the perforated metal plate 21 is 1.0-3.2 mm, and the total area of the openings of the perforated metal plate 21 accounts for 18% -33% of the area of the perforated metal plate 21.
To prevent separation of the perforated metal sheet 21 and the insulating acoustic liner 22 after a period of use, the sound absorption and noise reduction effects of the sound absorption layer are affected. The sound absorption layer of the sound absorption device provided by the embodiment of the invention further comprises: a fixing part; the fixing portion is provided between the perforated metal plate 21 and the insulating acoustic liner 22. The fixing portion can have a technical effect of tightly combining the perforated metal plate 21 and the insulating acoustic liner 22, ensuring a good sound absorption and noise reduction effect of the sound absorption layer.
On the basis of ensuring good fixing effect of the fixing part, the angle of low price, good weather resistance and light weight of the fixing part and convenience for subsequent installation is considered at the same time.
After the sound absorption unit is inserted into the installation keel 1, the periphery of the sound absorption and rubbing device is in contact with the external environment, the attractive appearance is poor, and external dust can be embedded into the sound absorption layer to influence the sound absorption and noise reduction effects of the sound absorption layer. In order to protect the sound absorption layer from being embedded with impurities and also consider the sound absorption layer to be attractive, the sound absorption device provided by the embodiment of the invention further comprises: a sealing unit 4; the sealing unit 4 is arranged outside the frame of the sound absorption layer.
On the basis of ensuring good sealing effect of the sealing unit 4, the sealing unit 4 is selected from the following components in the technical scheme provided by the embodiment of the invention: one or more of galvanized sheet, aluminum sheet or stainless steel sheet.
Further, in an optimized technical solution, in the sound absorption device provided by the embodiment of the present invention, the connection unit includes: screw 33, U-shaped groove 32 and T-clip 31; the screw fixes one end of the U-shaped groove 32 on the wall, and the other end of the U-shaped groove 32 is connected with the metal plate through the T-shaped clamp 31. The mounting structure of the connecting unit has the advantages of simple structure, good stability and low mounting cost.
Further optimizing the technical scheme and ensuring good sound absorption effect, the distance between adjacent metal plates is 500-1220 mm in the technical scheme provided by the embodiment of the invention.
The technical scheme provided by the embodiment of the invention has the following advantages:
1) The method is more environment-friendly; compared with the prior art, the technical scheme provided by the invention saves a large number of Z-groove/U-groove keels, and can deduce the number of connecting pieces such as explosive screws, blind rivets and the like.
2) The installation cost is lower and the efficiency is higher. The installation time of 2/3 can be saved.
3) The number of nails is small, the surface of the product is smooth, and the product is beautiful.
4) The sound absorption area is 22% more than that of a common flat plate, and the sound absorption and noise reduction effects of the product are further optimized.
5) The coiled material is installed without being limited by the length of the wall body, and the requirement of strip installation can be met.
6) And the maintenance and the disassembly are simple and convenient, and the maintenance cost is low.
In summary, the present invention provides a sound absorbing device, including: installing keels, sound absorption layers and connecting units; the installation keel is connected with a wall through the connecting unit, and the sound absorption layer is arranged between the installation keel and the wall; the installation fossil fragments comprise parallel metal sheet, the upper surface of sound absorbing layer is the wave sound absorbing layer. In the technical scheme provided by the invention, the mounting keels are arranged in parallel, the wavy sound absorption layer is inserted into the gap between the mounting keels and the wall, the whole mounting process is simple, convenient and quick, a large number of connecting parts are saved, and the appearance is attractive; meanwhile, the wavy sound absorption layer can further increase the sound absorption area, and compared with the flat plate sound absorption layer, the sound absorption area can be increased by more than 22%, so that the sound absorption effect is effectively optimized. The sound absorption device provided by the invention solves the technical defects of complicated installation, high cost of parts and unattractive finished products in the prior art.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (8)
1. A sound absorbing device, characterized in that the sound absorbing device comprises: installing keels, sound absorption layers and connecting units;
the installation keel is connected with a wall through the connecting unit, and the sound absorption layer is arranged between the installation keel and the wall;
the installation keels are composed of parallel metal plates, and the upper surfaces of the sound absorption layers are wavy sound absorption layers;
the connection unit includes: screw, U-shaped groove and T-shaped clamp;
one end of the U-shaped groove is fixed on the wall by the screw, and the other end of the U-shaped groove is connected with the metal plate through the T-shaped clamp;
the sound absorbing layer includes: perforated metal sheet and insulating acoustic liner;
the perforated metal sheet is disposed on the upper surface of the insulating acoustic liner.
2. The sound absorber of claim 1 wherein said insulating acoustic liner is: glass wool and/or mineral wool.
3. The sound absorbing device of claim 1, wherein the perforated metal sheet has a pore size of 1.0 to 3.2mm, and the total area of the openings of the perforated metal sheet is 18 to 33% of the area of the perforated metal sheet.
4. The sound absorbing device of claim 1, wherein the sound absorbing layer further comprises: a fixing part;
the fixing portion is disposed between the perforated metal plate and the insulating acoustic liner.
5. The sound absorber of claim 4 wherein said securing means is a mylar.
6. The sound absorbing device of claim 1, further comprising: a sealing unit;
the sealing unit is arranged outside the frame of the sound absorption layer.
7. The sound absorbing device of claim 6, wherein the sealing unit is selected from the group consisting of: one or more of galvanized sheet, aluminum sheet or stainless steel sheet.
8. The sound absorbing device of claim 1, wherein the distance between adjacent metal plates is 500 to 1220mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710249860.2A CN107044172B (en) | 2017-04-17 | 2017-04-17 | Sound absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710249860.2A CN107044172B (en) | 2017-04-17 | 2017-04-17 | Sound absorbing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107044172A CN107044172A (en) | 2017-08-15 |
| CN107044172B true CN107044172B (en) | 2023-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710249860.2A Active CN107044172B (en) | 2017-04-17 | 2017-04-17 | Sound absorbing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107044172B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108648743B (en) * | 2018-04-25 | 2020-07-28 | 上海交通大学 | Sheet acoustic black hole energy harvester device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104088421A (en) * | 2014-07-08 | 2014-10-08 | 南京常荣噪声控制环保工程有限公司 | Acoustic panel |
| CN205840022U (en) * | 2016-07-28 | 2016-12-28 | 上海坦泽环保科技有限公司 | A kind of space Suspended absorber |
| CN207160291U (en) * | 2017-04-17 | 2018-03-30 | 盈普声学（惠州）有限公司 | A kind of sound absorber |
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2017
- 2017-04-17 CN CN201710249860.2A patent/CN107044172B/en active Active
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| Publication number | Publication date |
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| CN107044172A (en) | 2017-08-15 |
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