CN210562743U - Double-sided sound absorption barrier for acoustic laboratory - Google Patents
Double-sided sound absorption barrier for acoustic laboratory Download PDFInfo
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- CN210562743U CN210562743U CN201921283080.0U CN201921283080U CN210562743U CN 210562743 U CN210562743 U CN 210562743U CN 201921283080 U CN201921283080 U CN 201921283080U CN 210562743 U CN210562743 U CN 210562743U
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Abstract
The utility model discloses a double-sided sound absorption barrier for an acoustic laboratory, which comprises a fixed double-sided sound absorption barrier and a movable double-sided sound absorption barrier; the fixed double-sided sound absorption barrier consists of a sound absorption perforated plate and a sound absorption material; the movable double-sided sound absorption barrier is formed by adding a moving mechanism on the basis of a fixed double-sided sound absorption barrier; the two types of double-sided sound absorption barriers have simple structures and are easy to use and manufacture; the circulating sound absorption treatment between the sound source center and the reflecting surface can be realized, and the device is suitable for various acoustic laboratories.
Description
Technical Field
The utility model belongs to the technical field of the noise reduction of sound barrier, concretely relates to a two-sided sound absorption barrier for acoustics laboratory.
Background
The sound barrier is widely applied in the field of modern acoustic treatment, for example, in sound source areas such as expressways, overhead composite roads, urban light rail subways and the like, and is mainly used for reducing noise. However, the acoustic laboratory is a laboratory for researching the sound wave propagation rule and testing the sound absorption, sound insulation and noise elimination performances of various building parts, structures and materials under the condition of simulating various ideal sound fields. Acoustic products cannot be placed in some areas due to civil or other factors; even if the acoustic product is placed, the acoustic product can not prevent the sound wave generated by the sound source from being reflected into another existing product or another area again by the effect of the rigid reflecting surface (as shown in figure 1), so that the acoustic measurement of the whole laboratory is influenced, and the correctness of the research data is improved. Secondly, corresponding fire-fighting tools, common tools thereof and the like are generally arranged in a laboratory, and the tools are usually placed in a place where the laboratory is fatigued or outside the laboratory and are basically exposed, so that the overall aesthetic property of the laboratory and the acoustic treatment effect are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a two-sided sound-absorbing barrier for acoustics laboratory to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a double-sided sound absorbing barrier for an acoustic laboratory, comprising:
the fixed double-sided sound absorption barrier comprises a first sound absorption perforated plate and a second sound absorption perforated plate, wherein the first sound absorption perforated plate and the second sound absorption perforated plate are connected to form a sound absorption cavity, and a sound absorption material is filled in the sound absorption cavity;
the movable double-sided sound absorption barrier is provided with a moving mechanism on the basis of a fixed double-sided sound absorption barrier.
Preferably, the double-sided sound absorption barrier is in a straight shape or an L shape.
Preferably, a sound absorption door can be arranged on any side of the double-sided sound absorption barrier to be matched with each other for building the double-sided sound absorption barrier.
The utility model discloses a technological effect and advantage: the utility model discloses two-sided sound absorption protective screen is simple, and easy-to-use is easily made, can realize doing the circulation sound absorption between sound source center and the plane of reflection and handle, is applicable to all kinds of acoustics laboratories.
Drawings
Fig. 1 is a schematic diagram of rigid reflection.
Fig. 2 is a schematic diagram of the application of the present invention.
Fig. 3 is the L-shaped layout of the present invention.
Fig. 4 is a schematic elevational view of fig. 3.
Fig. 5 is a schematic diagram of the application of the present invention in cooperation with a sound-absorbing door.
Fig. 6 is a schematic view of the present invention.
Fig. 7 is a schematic diagram of the mobile application of the present invention.
In the figure: the sound absorption type sound absorption device comprises a sound source center 1, a sound absorption wedge 2, a sound absorption perforated plate I3, a sound absorption perforated plate II 4, sound absorption materials 5, a sound absorption door 6 and a moving mechanism 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a two-sided sound-absorbing barrier for acoustics laboratory as shown in fig. 2-7, include:
the fixed double-sided sound absorption barrier comprises a first sound absorption perforated plate 3 and a second sound absorption perforated plate 4, wherein the first sound absorption perforated plate 3 and the second sound absorption perforated plate 2 are connected to form a sound absorption cavity, and a sound absorption material 5 is filled in the sound absorption cavity;
the movable double-sided sound absorption barrier is provided with a moving mechanism 7 on the basis of the fixed double-sided sound absorption barrier.
The sound absorption perforated plate is made of aluminum, aluminum alloy, galvanized steel, cold-rolled steel, stainless steel and the like, and the sound absorption material 5 is made of rock wool, glass wool, polyurethane foam, melamine foam and the like.
Further, the double-sided sound absorption barrier is in a straight shape or an L shape.
Furthermore, a sound absorption door 6 can be arranged on any side of the double-sided sound absorption barrier to be matched with each other for building the double-sided sound absorption barrier.
The sound absorption principle is the same whether the sound absorption barrier is a fixed double-sided sound absorption barrier or a movable double-sided sound absorption barrier; different, the two types of double-sided sound absorption barrier transport modes; the fixed double-sided sound absorption barriers are all carried manually, the movable double-sided sound absorption barriers are all carried manually in a matching way with the moving mechanism 7, and the moving mechanism 7 can be a common roller type moving mechanism.
The utility model discloses an extension can be L type, style of calligraphy etc. and can mutually support the application with the acoustic door (as shown in fig. 3, fig. 4, fig. 5, fig. 6, fig. 7).
The principle is as follows: sound waves generated by the sound source center 1 are transmitted into the double-sided sound absorption barrier through media in the air, and the sound waves sequentially penetrate through the first sound absorption perforated plate 3, the sound absorption material 5 and the second sound absorption perforated plate 4 to reach the rigid wall as shown by an arrow F, and at the moment, the double-sided sound absorption barrier is subjected to primary sound absorption treatment; the reflecting effect generated by the rigid wall is known from an arrow G, the sound waves are emitted into the acoustic product (the sound absorption wedge 2) again, at the moment, a part of the sound waves are reflected by the rigid wall of the acoustic product and are emitted into the double-sided sound absorption barrier, and pass through the second sound absorption perforated plate 4, the sound absorption material 5 and the first sound absorption perforated plate 3 to reach another acoustic product, and the double-sided sound absorption barrier is subjected to secondary sound absorption treatment as shown by an arrow H; the rigid wall of the other acoustic product generates a reflection effect again, sound waves pass through the first sound absorption perforated plate 3, the sound absorption material 5 and the second sound absorption perforated plate 4 again according to the direction of an arrow I to reach other acoustic products, and the double-sided sound absorption barrier performs sound absorption treatment for the third time; the rigid walls of other acoustic products generate a reflection effect again, sound waves penetrate through the second sound absorption perforated plate 4, the sound absorption material 5 and the first sound absorption perforated plate 3 again to reach the outside or other rigid walls according to the direction of an arrow J, and the double-sided sound absorption barrier is subjected to fourth sound absorption treatment; a sound absorption process is completed and the cycle continues thereafter (as shown in figure 2).
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (3)
1. A double-sided sound absorbing barrier for an acoustic laboratory, comprising:
the fixed double-sided sound absorption barrier comprises a first sound absorption perforated plate and a second sound absorption perforated plate, wherein the first sound absorption perforated plate and the second sound absorption perforated plate are connected to form a sound absorption cavity, and a sound absorption material is filled in the sound absorption cavity;
the movable double-sided sound absorption barrier is provided with a moving mechanism on the basis of a fixed double-sided sound absorption barrier.
2. A double-sided sound absorbing barrier for acoustic laboratories according to claim 1, wherein: the double-sided sound absorption barrier is in a straight shape or an L shape.
3. A double-sided sound absorbing barrier for acoustic laboratories according to claim 1, wherein: and a sound absorption door can be arranged on any side of the double-sided sound absorption barrier to be matched with each other for building the double-sided sound absorption barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921283080.0U CN210562743U (en) | 2019-08-08 | 2019-08-08 | Double-sided sound absorption barrier for acoustic laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921283080.0U CN210562743U (en) | 2019-08-08 | 2019-08-08 | Double-sided sound absorption barrier for acoustic laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210562743U true CN210562743U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201921283080.0U Active CN210562743U (en) | 2019-08-08 | 2019-08-08 | Double-sided sound absorption barrier for acoustic laboratory |
Country Status (1)
| Country | Link |
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| CN (1) | CN210562743U (en) |
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2019
- 2019-08-08 CN CN201921283080.0U patent/CN210562743U/en active Active
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Denomination of utility model: A double-sided sound absorption barrier for Acoustic Laboratory Effective date of registration: 20210825 Granted publication date: 20200519 Pledgee: Shenzhen hi tech investment small loan Co.,Ltd. Pledgor: SHENZHEN ZHONGYA ELECTROMECHANICAL INDUSTRIAL Co.,Ltd. Registration number: Y2021980008289 |