CN200993649Y - Sound insulation performance measuring device - Google Patents
Sound insulation performance measuring device Download PDFInfo
- Publication number
- CN200993649Y CN200993649Y CN 200620172780 CN200620172780U CN200993649Y CN 200993649 Y CN200993649 Y CN 200993649Y CN 200620172780 CN200620172780 CN 200620172780 CN 200620172780 U CN200620172780 U CN 200620172780U CN 200993649 Y CN200993649 Y CN 200993649Y
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- sound insulation
- silencer box
- box
- reverberation
- insulation property
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Abstract
The utility model relates to a sound insulation performance measuring device, which is mainly applied for measuring the sound insulation performance of light weight sound insulation materials. The utility model comprises a silencing box and a reverberation box; an opening is arranged at the lower end of the silencing box; an opening is arranged at the upper end of the reverberation box; the silencing box and the reverberation box join into a whole via the openings at the upper and lower ends; a clapboard is positioned between the silencing box and the reverberation box; the wall of the silencing box is configured with multiple layer composite sound absorption structure; the wall of the reverberation box is configured with multiple layer composite damping structure; a door frame is arranged on the silencing box; a sound insulation door is positioned at the door frame. The beneficial effects of the utility model are: 1. little space occupation, which needs not special testing room with large space and reduces the testing cost; 2. simple installation for the test piece of sound insulation material and convenient testing operation; 3. with excellent sound insulation performance and little external interference to the measuring device, the utility model ensures high testing precision, excellent repeatability of testing data and can be applied under different circumstances.
Description
Technical field
The utility model relates to a kind of sound insulation property measurement mechanism, and the sound insulation property that is mainly used in the light sound-insulation material is measured.
Background technology
The sound insulation property quality of sound insulating material is to judge the key of its quality of materials, in the using and study of sound insulating material, need measure the sound insulation property of sound insulating material test specimen.And in measuring process, measurement mechanism will directly influence the accuracy and the accuracy of measurement.At present, the sound insulation property of sound insulating material test specimen being measured all is to carry out in test cabinet usually.Test cabinet is made up of sound source room and receiving chamber, and the volume of sound source room and receiving chamber is bigger, and general minimum volume is not less than 50m respectively
3, the test specimen mouth of wall minimum is 1.5m between two Room
2Such test cabinet is installed more complicated to the sound insulating material test specimen, and the outer surrounding environment of test cabinet is required than higher reverberation time in the test cabinet, ground unrest are also had strict requirement.Therefore, there is the testing cost height in such sound insulation property measurement, and the test operation complexity and the test space are big, the environmental requirement problem of higher.
Summary of the invention
Technical problem to be solved in the utility model be the deficiency that exists at above-mentioned prior art and provide a kind of institute take up space little, testing cost is low, the sound insulation property measurement mechanism that test operation is easy.
The technical scheme that the utility model provides for addressing the above problem is: include silencer box 17 and reverberation case 20, silencer box 17 lower ending openings, reverberation case 20 upper end open, reverberation case and the silencer box joint by the upper and lower end opening makes and connects as one for two the casees, is provided with dividing plate 24 between silencer box 17 and reverberation case 20; The tank wall of described silencer box 17 is the MULTILAYER COMPOSITE sound absorption structure, and the tank wall of described reverberation case 20 is the MULTILAYER COMPOSITE damping structure, has doorframe on the silencer box 17, and the doorframe place is equipped with soundproof door 18.
Press such scheme, the MULTILAYER COMPOSITE sound absorption structure of described silencer box 17 tank walls comprises inner layer steel plate 14 and outer layer plate 12 and the absorbent treatment 13 between inside and outside layer steel plate, and absorbent treatment is formed by the acoustic absorbant filling, and thickness is 40～60mm.The MULTILAYER COMPOSITE damping structure of described reverberation case 20 tank walls comprises inner layer steel plate 3 and outer layer plate 1 and the damping layer 2 between inside and outside layer steel plate, and damping layer is formed by the damping material filling, and thickness is 40～60mm.The tank wall inboard of described silencer box 17 and reverberation case 20 can also add absorbent treatment 4 in one deck.
Press such scheme, wedge absorber 16 is installed in the upper end in silencer box 17 casings.In reverberation case 20 casings, be provided with loudspeaker support 7; Described dividing plate 24 is the monoblock plane steel plate, and thickness is 1mm.Dispose trim ring 11 in the silencer box 17 of described dividing plate 24 tops, be used to push tested sound insulating material.
Press such scheme, at reverberation case 20 upper end edge tank walls the vibration damping chan frame is set, at silencer box 17 lower end edge tank walls connecting frame 19 is set, reverberation case 20 links to each other with the connecting frame 19 of silencer box 20 lower ends by the vibration damping chan frame, itself and silencer box 17 are connected as a body, and it is isolated with the inner chamber of two tanks to install dividing plate 24 at their joining place.
The beneficial effects of the utility model are: it is little 1, to take up space, and need not the bigger special test cabinet of volume, has reduced testing cost; 2, the installation of sound insulating material test specimen is fairly simple, and test operation is easy; 3, because sound insulation property is good, and measurement mechanism is subjected to the external interference degree little, so the measuring accuracy height, the test data good reproducibility, and use in can be in the many different environment.
Description of drawings
Fig. 1 is the front elevation of an embodiment of the utility model.
Fig. 2 is the partial enlarged drawing of casing junction I among Fig. 1.
Fig. 3 is the A-A cut-open view among Fig. 1.
Embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing.
Include the silencer box 17 and the reverberation case 20 that are connected as one up and down, the casing of silencer box is rectangular, seal with end face all around, lower ending opening, tank wall is the MULTILAYER COMPOSITE sound absorption structure, be made of inside and outside layer steel plate 12,14 and the absorbent treatment 13 that is clipped between the inside and outside layer steel plate, absorbent treatment 13 is formed by the filling of super glass wool acoustic absorbant, and thickness is 50mm; For strengthening the noise elimination sound absorbing capabilities, hang with wedge absorber 16 at silencer box 17 casing inner tops, the tank wall inboard around the silencer box casing can also add absorbent treatment 4 in one deck, and thickness is 20～30mm, can further reduce the reflection of madial wall to sound source; At silencer box 17 lower end edge tank walls connecting frame 19 is set, connecting frame connects firmly with silencer box 17 by the rubber bolt sleeve 23 that bolt 10 passes in the tank wall, have the rectangle doorframe in silencer box 17 fronts, dispose soundproof door 18 in the doorframe, the soundproof door below is hinged with the silencer box casing, top and the hinged clamping screw 28 of both sides configuration, soundproof door is by interior, in, outer three- ply plate 32,27,26 and be clipped in, in, absorbent treatment 30 between the outer three-ply plate constitutes, absorbent treatment is formed by the filling of super glass wool acoustic absorbant, the soundproof door inboard can also add absorbent treatment 31 in one deck, and the peripheral phase configuration of vibration isolation rubber sealing strip 29 and soundproof door is set around doorframe.The casing of reverberation case 20 is rectangular, seal with the bottom surface all around, the casing cross section is slightly less than silencer box 17 casing cross sections, tank wall is the MULTILAYER COMPOSITE damping structure, constitute by inside and outside layer steel plate 1,3 and the damping layer 2 that is clipped between the inside and outside layer steel plate, damping layer is filled by the fine sand damping material and is formed, and thickness is 50mm; Tank wall inboard around the reverberation box body can also add absorbent treatment 4 in one deck; At reverberation case 20 upper end edge tank walls the vibration damping chan frame is set, described vibration damping chan frame comprises the pressing plate 8 of reverberation case 20 upper end tank wall end faces and the rubber damping pad 21 on the pressing plate, and chan frame 9 is withheld on rubber damping pad 21, and the three closely links to each other; Reverberation case 20 links to each other with the connecting frame 19 of silencer box 17 lower ends by the vibration damping chan frame, and liner has sound absorption felt 22 between vibration damping chan frame and connecting frame 19, makes them airtight superimposed, and silencer box 17 and reverberation case 20 connect as one.Being provided with thickness between silencer box 17 and reverberation case 20 is the dividing plate 24 of 1mm steel plate, the silencer box 17 and the cavity of reverberation case 20 are separated fully, dividing plate 24 peripheries flush with the connecting frame 19 of reverberation case 20, vibration damping chan frame pressing location by silencer box, dispose trim ring 11 in the silencer box 17 above dividing plate, be used to push tested sound insulating material, in reverberation case 20 casings near dividing plate 24 below be provided with loudspeaker support 7, loudspeaker support 7 is provided with a plurality of holes, can place a plurality of loudspeaker horns 6.Casing one side at silencer box 17 and reverberation case 20 has cable aperture, installs case seal 5 in the hole, is used for the cross-under of cable.
Claims (10)
1. sound insulating material device for measuring properties, it is characterized in that including silencer box (17) and reverberation case (20), silencer box (17) lower ending opening, reverberation case (20) upper end open, reverberation case and the silencer box joint by the upper and lower end opening makes and connects as one for two the casees, is provided with dividing plate (24) between silencer box (17) and reverberation case (20); The tank wall of described silencer box (17) is the MULTILAYER COMPOSITE sound absorption structure, and the tank wall of described reverberation case (20) is the MULTILAYER COMPOSITE damping structure, and silencer box has doorframe on (17), and the doorframe place is equipped with soundproof door (18).
2. sound insulation property measurement mechanism according to claim 1, the MULTILAYER COMPOSITE sound absorption structure that it is characterized in that described silencer box (17) tank wall comprises inner layer steel plate (14) and outer layer plate (12) and the absorbent treatment (13) between inside and outside layer steel plate, and absorbent treatment is formed by the acoustic absorbant filling.
3. sound insulation property measurement mechanism according to claim 1, the MULTILAYER COMPOSITE damping structure that it is characterized in that described reverberation case (20) tank wall comprises inner layer steel plate (3) and outer layer plate (1) and the damping layer (2) between inside and outside layer steel plate, and damping layer is formed by the damping material filling.
4. according to claim 2 or 3 described sound insulation property measurement mechanisms, it is characterized in that the tank wall inboard of described silencer box (17) and reverberation case (20) also adds absorbent treatment (4) in one deck.
5. sound insulation property measurement mechanism according to claim 4 is characterized in that wedge absorber (16) is installed in the upper end in silencer box (17) casing.
6. sound insulation property measurement mechanism according to claim 1 and 2 is characterized in that being provided with loudspeaker support (7) in reverberation case (20) casing.
7. sound insulation property measurement mechanism according to claim 1 and 2 is characterized in that described dividing plate (24) is the monoblock plane steel plate, disposes trim ring (11) in the described dividing plate top silencer box (17).
8. sound insulation property measurement mechanism according to claim 7, it is characterized in that the vibration damping chan frame being set at reverberation case (20) upper end edge tank wall, at silencer box (17) lower end edge tank wall connecting frame (19) is set, reverberation case (20) links to each other with the connecting frame (19) of silencer box (17) lower end by the vibration damping chan frame, itself and silencer box (17) are connected as a body, and it is isolated with the inner chamber of two tanks to install dividing plate (24) at their joining place.
9. sound insulation property measurement mechanism according to claim 1 and 2, it is characterized in that having the rectangle doorframe in silencer box (17) front, dispose soundproof door (18) in the doorframe, the soundproof door below is hinged with the silencer box casing, top and the hinged clamping screw (28) of both sides configuration, soundproof door is made of interior, domestic and abroad three-ply plate (32,27,26) and the absorbent treatment (30) that is clipped between interior, the domestic and abroad three-ply plate, absorbent treatment is formed by the filling of super glass wool acoustic absorbant, and the soundproof door inboard also adds absorbent treatment (31) in one deck.
10. sound insulation property measurement mechanism according to claim 8, it is characterized in that described vibration damping chan frame comprises the pressing plate (8) of reverberation case (20) upper end tank wall end face and the rubber damping pad (21) on the pressing plate, chan frame (9) is withheld on rubber damping pad (21), and the three closely links to each other; Reverberation case (20) links to each other with the connecting frame (19) of silencer box (17) lower end by the vibration damping chan frame, and liner has sound absorption felt (22) between vibration damping chan frame and connecting frame (19), makes them airtight superimposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620172780 CN200993649Y (en) | 2006-12-30 | 2006-12-30 | Sound insulation performance measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620172780 CN200993649Y (en) | 2006-12-30 | 2006-12-30 | Sound insulation performance measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993649Y true CN200993649Y (en) | 2007-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620172780 Expired - Lifetime CN200993649Y (en) | 2006-12-30 | 2006-12-30 | Sound insulation performance measuring device |
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| CN (1) | CN200993649Y (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464087A (en) * | 2010-11-09 | 2012-05-23 | 中国舰船研究设计中心 | Design method for multi-functional measuring area of large-sized underwater acoustic measurement test vessel |
| CN102565191A (en) * | 2012-02-17 | 2012-07-11 | 重庆长安汽车股份有限公司 | Device for evaluating sound insulation and absorption performance of automobile body part |
| CN102682958A (en) * | 2012-05-30 | 2012-09-19 | 卧龙电气集团股份有限公司 | Noise-isolating cabinet for transformer |
| CN103105436A (en) * | 2013-01-16 | 2013-05-15 | 浙江大学 | Acoustic test equipment-reverberation box |
| CN103674228A (en) * | 2012-09-26 | 2014-03-26 | 北汽福田汽车股份有限公司 | Sound damping and vibration reducing system |
| CN103713046A (en) * | 2014-01-08 | 2014-04-09 | 神龙汽车有限公司 | Measuring method and device for sound-proofing quantity of perforation structure assembly |
| CN104457970A (en) * | 2014-11-21 | 2015-03-25 | 南京琅声声学科技有限公司 | Semi-anechoic box for wide frequency bandwidth measurement |
| CN104749256A (en) * | 2014-11-21 | 2015-07-01 | 珠海格力电器股份有限公司 | Method and system for detecting noise reduction effect of composite sound insulation material |
| CN105752538A (en) * | 2016-03-25 | 2016-07-13 | 赵士立 | Leak-proof elastic bolt for oil storage tank |
| CN105891336A (en) * | 2016-03-30 | 2016-08-24 | 北京航天发射技术研究所 | Scaling model machine of large noise isolation device and noise isolation test method of scaling model machine |
| CN106018564A (en) * | 2016-07-25 | 2016-10-12 | 上海声望声学科技股份有限公司 | Test frame structure |
| CN106289827A (en) * | 2015-06-11 | 2017-01-04 | 广州行盛玻璃幕墙工程有限公司 | A kind of detection device of door and window sound insulation property |
| CN106979977A (en) * | 2017-02-17 | 2017-07-25 | 广州汽车集团股份有限公司 | Automobile front wall sound insulation property Forecasting Methodology |
| CN108333257A (en) * | 2018-02-12 | 2018-07-27 | 安徽江淮汽车集团股份有限公司 | A kind of shield glass test device |
| CN109870507A (en) * | 2019-01-25 | 2019-06-11 | 河海大学 | A kind of porous asphalt mixture noise absorbent and communication effect test device and usage |
| CN110196282A (en) * | 2019-05-19 | 2019-09-03 | 湖北嘉辐达节能科技股份有限公司 | A kind of centrifugally glass-wool sound absorption qualities detection device |
| CN111781076A (en) * | 2019-10-24 | 2020-10-16 | 东北大学 | Integrated tester and testing method for shock absorption, noise reduction and impact resistance of composite material |
| CN111781272A (en) * | 2019-10-24 | 2020-10-16 | 东北大学 | Composite material vibration and noise reduction tester and method based on reverberation plane acoustic wave excitation |
| CN114184683A (en) * | 2021-10-18 | 2022-03-15 | 中国电器科学研究院股份有限公司 | Sound insulation and heat preservation heat insulation box body and walk-in high-low temperature silencing box |
-
2006
- 2006-12-30 CN CN 200620172780 patent/CN200993649Y/en not_active Expired - Lifetime
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464087A (en) * | 2010-11-09 | 2012-05-23 | 中国舰船研究设计中心 | Design method for multi-functional measuring area of large-sized underwater acoustic measurement test vessel |
| CN102464087B (en) * | 2010-11-09 | 2016-06-08 | 中国舰船研究设计中心 | The multiple functional measurement region design method of large-scale underwater acoustic measurement test vessel |
| CN102565191A (en) * | 2012-02-17 | 2012-07-11 | 重庆长安汽车股份有限公司 | Device for evaluating sound insulation and absorption performance of automobile body part |
| CN102682958A (en) * | 2012-05-30 | 2012-09-19 | 卧龙电气集团股份有限公司 | Noise-isolating cabinet for transformer |
| CN103674228A (en) * | 2012-09-26 | 2014-03-26 | 北汽福田汽车股份有限公司 | Sound damping and vibration reducing system |
| CN103105436A (en) * | 2013-01-16 | 2013-05-15 | 浙江大学 | Acoustic test equipment-reverberation box |
| CN103713046A (en) * | 2014-01-08 | 2014-04-09 | 神龙汽车有限公司 | Measuring method and device for sound-proofing quantity of perforation structure assembly |
| CN103713046B (en) * | 2014-01-08 | 2017-02-08 | 神龙汽车有限公司 | Measuring method and device for sound-proofing quantity of perforation structure assembly |
| CN104457970A (en) * | 2014-11-21 | 2015-03-25 | 南京琅声声学科技有限公司 | Semi-anechoic box for wide frequency bandwidth measurement |
| CN104749256A (en) * | 2014-11-21 | 2015-07-01 | 珠海格力电器股份有限公司 | Method and system for detecting noise reduction effect of composite sound insulation material |
| CN104457970B (en) * | 2014-11-21 | 2018-07-06 | 南京琅声声学科技有限公司 | A kind of half silencer box of broadband measurement |
| CN106289827A (en) * | 2015-06-11 | 2017-01-04 | 广州行盛玻璃幕墙工程有限公司 | A kind of detection device of door and window sound insulation property |
| CN105752538A (en) * | 2016-03-25 | 2016-07-13 | 赵士立 | Leak-proof elastic bolt for oil storage tank |
| CN105891336A (en) * | 2016-03-30 | 2016-08-24 | 北京航天发射技术研究所 | Scaling model machine of large noise isolation device and noise isolation test method of scaling model machine |
| CN106018564A (en) * | 2016-07-25 | 2016-10-12 | 上海声望声学科技股份有限公司 | Test frame structure |
| CN106018564B (en) * | 2016-07-25 | 2018-09-04 | 上海声望声学科技股份有限公司 | A kind of test frame structure |
| CN106979977A (en) * | 2017-02-17 | 2017-07-25 | 广州汽车集团股份有限公司 | Automobile front wall sound insulation property Forecasting Methodology |
| CN108333257A (en) * | 2018-02-12 | 2018-07-27 | 安徽江淮汽车集团股份有限公司 | A kind of shield glass test device |
| CN109870507A (en) * | 2019-01-25 | 2019-06-11 | 河海大学 | A kind of porous asphalt mixture noise absorbent and communication effect test device and usage |
| CN109870507B (en) * | 2019-01-25 | 2021-09-07 | 河海大学 | Porous asphalt mixture noise absorption and propagation effect testing device and application method |
| CN110196282A (en) * | 2019-05-19 | 2019-09-03 | 湖北嘉辐达节能科技股份有限公司 | A kind of centrifugally glass-wool sound absorption qualities detection device |
| CN111781076A (en) * | 2019-10-24 | 2020-10-16 | 东北大学 | Integrated tester and testing method for shock absorption, noise reduction and impact resistance of composite material |
| CN111781272A (en) * | 2019-10-24 | 2020-10-16 | 东北大学 | Composite material vibration and noise reduction tester and method based on reverberation plane acoustic wave excitation |
| WO2021077449A1 (en) * | 2019-10-24 | 2021-04-29 | 东北大学 | Integrated tester for shock absorption, noise reduction and impact resistance of composite materials and test method |
| CN114184683A (en) * | 2021-10-18 | 2022-03-15 | 中国电器科学研究院股份有限公司 | Sound insulation and heat preservation heat insulation box body and walk-in high-low temperature silencing box |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071219 |
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| EXPY | Termination of patent right or utility model |