CN202795841U - Teaching model for demonstrating sound insulation effects of sound insulation boards with different thicknesses - Google Patents
Teaching model for demonstrating sound insulation effects of sound insulation boards with different thicknesses Download PDFInfo
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- CN202795841U CN202795841U CN 201220264051 CN201220264051U CN202795841U CN 202795841 U CN202795841 U CN 202795841U CN 201220264051 CN201220264051 CN 201220264051 CN 201220264051 U CN201220264051 U CN 201220264051U CN 202795841 U CN202795841 U CN 202795841U
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- sound
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- sound insulation
- sound panel
- teaching
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Abstract
The utility model discloses a teaching model for demonstrating sound insulation effects of sound insulation boards with different thicknesses. The teaching model comprises a sound source device, a sound pressure meter, homogeneous sound insulation boards with different thicknesses, and a support device. According to the utility model, a variable frequency sound generator is used as a sound source, and the homogeneous sound insulation boards with different thicknesses are separately arranged between the sound source and the sound pressure meter, so that the readings of the sound pressure meter can be recorded so as to observe the rules of the influence of the thicknesses of the sound insulation boards on the noise reduction effect under different noise frequencies.
Description
Technical field
The utility model relates to a kind of demonstration model for teaching, particularly a kind of demonstration model for teaching of different-thickness sound panel defening effect.
Background technology
Along with the development of the modern industry, environmental pollution is also along with generation, and noise pollution is exactly a kind of of environmental pollution, has become the greatly harm to the mankind.Noise pollution and water pollution, atmospheric pollution, noxious waste pollution are regarded as four large main Environmental Problems in the world wide.Noise pollution all consists of harm to people, animal, instrument and meter and buildings.
Only can be by the mode of Internet video in the now noise pollution teaching, allow the student understand the principle of sound insulation and affect the factor of defening effect, and the student can't get information about defening effect, and so far not yet the someone design the demonstration model for teaching of different-thickness sound panel defening effect.
The utility model content
This teaching mode is just in order to solve the problem in the above-mentioned teaching, proposed a kind of easy to carryly, operates simple and easyly, and can demonstrate the teaching mode of different-thickness sound panel defening effect.
For achieving the above object, the utility model adopts following technical proposals to realize:
This demonstration model for teaching comprises: sonic source device, sound pressure meter, bracing or strutting arrangement, the homogeneity sound panel of different-thickness.Sonic source device is placed on the bracing or strutting arrangement, by wire and power connection.Bracing or strutting arrangement comprises: cube skeleton, base for supporting.Every kind of thickness sound panel has six, has five kinds of thickness.The cube skeleton has the adjustable slot of gap length, can insert six blocks of sound insulating materials, and base for supporting is solid material.Sound panel with different-thickness in this demonstration model for teaching forms between sound insulation, sonic source device is placed on the bracing or strutting arrangement, and be positioned at cubical geometric center, and by wire and power connection, send the changeable noise of frequency, the noise decibel of each position after in external environment, can recording between the sound insulation of noise process with sound pressure meter, the utility model can be observed sound panel thickness to the impact of same frequency noise noise reduction by the sound panel of changing different-thickness, also can be used to observe same thickness sound panel to the impact of the noise reduction of different frequency noise.This teaching mode can be demonstrated between the sound insulation of five kinds of different-thickness sound panels.
The utility model has following remarkable advantage: use the variable ratio frequency changer sonic generator, the relation between can obtaining between noise frequency and defening effect; Employing can be changed sound panel more easily with the cube skeleton of slot; Use the different-thickness sound panel, can obtain the relation between defening effect and the sound insulating material thickness; Sonic source device and bracing or strutting arrangement closely are connected as a single entity, have avoided because the error that the device sealing causes.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present utility model.
The implication of the mark of accompanying drawing is among the figure: 1 variable ratio frequency changer sonic generator, 2 sound pressure meters, 3 different-thickness sound panels, 4 support frames, 5 base for supporting, 6 interior empty struts, 7 wires, 8 sealing strips.
Embodiment
Embodiment of the present utility model is a kind of demonstration model for teaching of defening effect of different-thickness sound panel, and as shown in Figure 1, this model comprises variable ratio frequency changer sonic generator 1, sound pressure meter 2, different-thickness sound panel 3, support frame 4, base for supporting.Sound panel in this teaching mode is that the length of side is the wooden square sound panel of 0.2m, and selected sound panel thickness is respectively 0.005m, 0.010m, 0.015m, 0.020m, 0.025m.
As shown in the figure, connect variable-frequency sonic generator 1 with wire 7 by supporting seat 5 and interior empty support bar 6, and be fixed on support bar 6 upper ends.In the slot of six faces of cube skeleton 4, insert respectively same thickness sound panel 3, and with sealing strip 8, by variable-frequency sonic generator 1 steady noise frequency, in external environment, survey the noise acoustic pressure with sound pressure meter 2.Change noise frequency by variable-frequency sonic generator 1, in external environment, survey the noise acoustic pressure with sound pressure meter 2.Change to adopt the sound panel 3 of other six stack piles of and homogeneity different from above-mentioned sound panel thickness, survey outside acoustic pressure with sound pressure meter 2.Thereby obtain respectively the relation between defening effect and sound panel thickness, the noise frequency.
Claims (4)
1. the demonstration model for teaching of a different-thickness sound panel defening effect comprises: sonic source device, and sound pressure meter, bracing or strutting arrangement, the homogeneity sound panel of different-thickness is characterized in that described sonic source device is placed on the bracing or strutting arrangement, by wire and power connection.
2. the demonstration model for teaching of described different-thickness sound panel defening effect according to claim 1 is characterized in that described sonic source device is the variable ratio frequency changer sonic generator, and is positioned at cubical geometric center.
3. the demonstration model for teaching of described different-thickness sound panel defening effect according to claim 1 is characterized in that, the homogeneity sound panel of described different-thickness, and every kind of thickness sound panel has six, has five kinds of thickness.
4. the demonstration model for teaching of described different-thickness sound panel defening effect according to claim 1, it is characterized in that, described bracing or strutting arrangement comprises: cube skeleton, base for supporting, the cube skeleton has the adjustable slot of gap length, can insert six blocks of sound insulating materials, base for supporting is solid material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264051 CN202795841U (en) | 2012-06-04 | 2012-06-04 | Teaching model for demonstrating sound insulation effects of sound insulation boards with different thicknesses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264051 CN202795841U (en) | 2012-06-04 | 2012-06-04 | Teaching model for demonstrating sound insulation effects of sound insulation boards with different thicknesses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202795841U true CN202795841U (en) | 2013-03-13 |
Family
ID=47823055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220264051 Expired - Fee Related CN202795841U (en) | 2012-06-04 | 2012-06-04 | Teaching model for demonstrating sound insulation effects of sound insulation boards with different thicknesses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202795841U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108961957A (en) * | 2018-07-25 | 2018-12-07 | 王小兰 | A kind of noise reduction apparatus for demonstrating |
| CN115790832A (en) * | 2023-02-07 | 2023-03-14 | 山东世卓泽坤节能环保科技有限公司 | Noise management system and method based on sound absorption and insulation module |
-
2012
- 2012-06-04 CN CN 201220264051 patent/CN202795841U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108961957A (en) * | 2018-07-25 | 2018-12-07 | 王小兰 | A kind of noise reduction apparatus for demonstrating |
| CN115790832A (en) * | 2023-02-07 | 2023-03-14 | 山东世卓泽坤节能环保科技有限公司 | Noise management system and method based on sound absorption and insulation module |
| CN115790832B (en) * | 2023-02-07 | 2023-04-21 | 山东世卓泽坤节能环保科技有限公司 | Noise management system and method based on sound absorption and insulation module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140604 |