CN103061424A - Sound insulation vibration damping device - Google Patents
Sound insulation vibration damping device Download PDFInfo
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- CN103061424A CN103061424A CN201210002451XA CN201210002451A CN103061424A CN 103061424 A CN103061424 A CN 103061424A CN 201210002451X A CN201210002451X A CN 201210002451XA CN 201210002451 A CN201210002451 A CN 201210002451A CN 103061424 A CN103061424 A CN 103061424A
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- sound insulation
- sound
- vibration
- braced structures
- damping
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Abstract
The invention discloses a sound insulation vibration damping device which specifically comprises a supporting structure, a first sound insulation unit and a second sound insulation unit. The first sound insulation unit is fixed on the upper side of the bottom face of the supporting structure in an attached mode, and located in a space of the supporting structure. The second sound insulation unit is fixed on the lower side of the bottom face of the supporting structure in an attached mode and located outside the space of the supporting structure. The problem of noise abatement of secondary pollution of noises is solved, spreading of sound can be effectively damped, and linear transmission of sound waves is prevented. The sound waves are absorbed by a sound insulation vibration layer, sound inside buildings is effectively reduced from spreading outside the buildings, noises outside the buildings are prevented from spreading into the buildings, and therefore the purpose of sound insulation is realized.
Description
Technical field
The present invention relates to the buildings in general structure, the transmission of sound, conduction or directed general device; Protection or noise decrease or other infrasounds, sound wave or hyperacoustic general device, particularly a kind of indoor sound insulating vibration absorber.
Background technology
The combination sound insulation acoustical board that uses in the most noise abatement engineering, general all is the form of structure that the additional sound absorption material of sound insulation backboard adds the mask perforated plate, its sound insulation property depends primarily on thickness, the surface density of sound insulation backboard, and sound absorbing capabilities then depends on the sound absorption characteristics of sound absorption material.In the situation of sheet material of the same race, the very little then sound insulation property of the thickness of backboard weakens, and produces vibration easily, if increase the thickness of plate, then can strengthen the weight of whole sound barrier, makes troubles to construction and installation, also can increase construction costs.The acoustically effective of sound insulation acoustical board also depends on the selection of sound absorption material, and after material decision, the sound absorption characteristics of sound absorption material are exactly changeless, and this just causes common sound insulation acoustical board sound absorption frequency range less.The mask perforated plate mostly is perforated plate commonly used, is generally aperture 3mm, perforated percentage 20-30%.Because the aperture is relatively large, if plate in the open or particular surroundings make easily sound absorption material watered and wetting in the plate when using, thereby greatly reduce whole sound absorbing capabilities.In addition, in the prior art implementation process, sound insulating material originally in situation about being vibrated, also can produce vibration, thereby causes because sound insulating material vibration caused " secondary noise ".
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art:
Mostly existing noise-reduction method is what the mode of employing " sound insulation " realized, need to sound arrester be set at the noise source place, so that noise source and the isolation of extraneous space.But in actual implementation process, particularly be used in the indoor Noise Treatment process, because noise vibration can cause that " building structure is transaudient " reaches " vibration that sound arrester itself brings is transaudient ", this shows, because sound arrester itself is subject to " secondary pollution " that the impact of " noise vibration " has produced noise, thereby reduced the effect of sound insulation and noise reducing, what need to further emphasize is, because " sound arrester " generation " secondary pollution " of adopting, therefore, the noise abatement effect is particularly not obvious, especially the poor effect of the improvement of low frequency noise.
Summary of the invention
For the technical existing problem of house sound insulation in the prior art and limitation, the purpose of this invention is to provide a kind of sound insulation vibration absorber, by the damping of sound insulating material being solved the noise abatement problem of " secondary pollution ".
For solving the problems of the technologies described above, the present invention takes following technical scheme: braced structures, the first sound insulation unit and the second sound insulation unit form.Described braced structures is the tubular construction that can surround the space and have the bottom surface; Described the first sound insulation unit comprises: the first damping layer and the first vibration insulation, described the first vibration insulation is bonded in described the first damping layer below, described the first damping layer comprises: gripper shoe and damping body, described damping body is made by the material that plastic deformation can occur, and described gripper shoe fixedly is bonded in described damping body top; Described the second sound insulation unit comprises: the second damping layer and the second vibration insulation, described the second damping layer are bonded in described the second vibration insulation top, and described the second damping layer is consistent with described the first damping layer structure; Fitting and be fixed in the upside of described braced structures bottom surface and place described braced structures interior volume in described the first sound insulation unit, fits and be fixed in described supporting mechanism bottom surface downside and place described braced structures space outside in described the second sound insulation unit.
Simultaneously, the present invention also provides a kind of mode of the vibration damping that insulates against sound, and specifically comprises: noise source is arranged at described sound insulation vibration absorber braced structures inside or is arranged at top, described sound insulation vibration absorber braced structures bottom surface.
Compared with prior art, the embodiment of the invention has the following advantages:
For noise source and sound-conducting apparatus, administer respectively,, reduces vibration insulation two aspects of conduct vibrations by being set from reducing generation of vibration and damping layer, targetedly to sound wave is administered " secondary pollution " noise of partiting sound member generation because the noise of structure generation reaches, isolation can be arranged because the multiple noise that conduct vibrations produces by this device, and can be for the concrete condition of noise source, implement this device at noise source outside (periphery), as at the original building internal implementation, do not affect the building original structure, can effectively stop the propagation of sound wave, reduce the conduction intensity of sound wave, the sound wave vibration damping layer that insulated against sound is absorbed, effectively reduced the propagation of interior of building sound to the building outside, and the building external noise is to the propagation of interior of building, thereby reaches the effect of sound insulation.
Description of drawings
Below in conjunction with accompanying drawing embodiments of the present invention are elaborated:
Fig. 1 shows a kind of vibration absorber that insulates against sound and is installed on the first structural representation of building thing ground;
Fig. 2 shows a kind of vibration absorber that insulates against sound and is installed on the first structural representation of building the thing top.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail:
In the embodiments of the invention one, be arranged at the inside of inside, house as example take a kind of vibration absorber that insulates against sound, as shown in Figure 1, specifically comprise: braced structures 18,19, braced structures 19 can adopt the firm material of 40 * 60 * 1.5 sides in the specific implementation, among Fig. 1 A-A for the cross section tenon structure cross-sectional drawing that supports steel simultaneously in its tenon structure in order to increase support degree, also can add the steel backing material, the first sound insulation unit and the second sound insulation unit form, described braced structures 18,19 is the tubular construction that can surround the space and have the bottom surface, described the first sound insulation unit comprises: the first damping layer and the first vibration insulation 13, its vibration insulation 13 can adopt 40mm vibration isolation plate in the specific implementation, described the first vibration insulation 13 is bonded in described the first damping layer below, described the first damping layer comprises: gripper shoe 11 and damping body 12, described damping body 12 is made by the material that plastic deformation can occur, described gripper shoe 11 fixedly is bonded in described damping body 12 tops, can adopt 1.4mm damping sheet and 1.5mm cold-rolled steel sheet to the damping layer implementation time; It is as for the braced structures 18 on the first sound insulation unit, can adopt in the specific implementation the firm material of 40 * 40 * 1.5 sides, for optimizing vibration insulation structure, braced structures 18, also can adopt in the specific implementation 40 * 40 * 1.5 sides just to add cotton material, on braced structures 18 in order to increase ground supports intensity, can also increase as required the ground supports material that one deck has some strength, its thickness can adopt 9mm thickness lumber core, the second sound insulation unit is set on it, described the second sound insulation unit comprises: the second damping layer and the second vibration insulation 17, its second vibration insulation 17 can adopt 10mm vibration isolation plate in the specific implementation, described the second damping layer is bonded in described the second vibration insulation 17 tops, described the second damping layer is consistent with described the first damping layer structure, and specifically comprise: gripper shoe 15 and damping body 16, described damping body 16 is made by the material that plastic deformation can occur, described gripper shoe 15 fixedly is bonded in described damping body 16 tops, can adopt 1.4mm damping sheet and 1.5mm cold-rolled steel sheet to the second damping layer implementation the time; Fitting and be fixed in the upside of described braced structures bottom surface 110 and place 111 inside, described braced structures space in described the first sound insulation unit, fits and be fixed in described supporting mechanism bottom surface 112 downsides and place described braced structures space outside in described the second sound insulation unit.
Wherein, described braced structures 18,19 is for can surround tubular construction enclosure space and that have bottom surface or end face.Described braced structures 18,19 specifically comprises: bracing frame and supporter, above support are installed on the bracing frame side, and can consist of the side and crowd around structure, and support frame as described above is inner, and to fill sound absorption cotton, thereby increase soundproof effect.Clamp fixing at least one deck core-board 14 between described braced structures and the first sound insulation unit or between described braced structures and the second sound insulation unit, clamping fixing at least one deck core-board 14.
Described the first sound insulation unit specifically can comprise: at least two the first damping layers and the first vibration insulation, fitting between described at least two the first damping layers is fixedly connected with, described at least two the first damping layers be fitted and connected and described the first vibration insulation above; Or described the second sound insulation unit specifically can comprise: at least two the second damping layers and the second vibration insulation, fit between described at least two the second damping layers and be fixedly connected with, described at least two the second damping layers are fitted and connected and described the second vibration insulation below, and described vibration insulation 17,13 comprises at least one deck vibration isolation plate at least.
By above sound insulation vibration absorber is installed, when being used for another kind of laboratory indoor sound insulating, during member gross thickness (comprising damping body thickness) 250mm, when installing according to job specfication, detecting instrument: RTA840 system, the project weighted transmission loss R that examines
W=42 decibels, according to GB/T8485-2002 " the sound insulation property classification of external window of building airborne sound and detection method ", judge that the sound insulation class of this member is 5 grades of (40dB≤R
W45dB).When this device is buttoned-up status, the project weighted transmission loss R that examines
W=52 decibels, according to GB/T8485-2002 " the sound insulation property classification of external window of building airborne sound and detection method ", judge that the sound insulation class of this member is 6 grades of (45dB≤R
W), particular content please refer to sound proof window GS/XF/41 examining report, report number: A07-09-17.
By above sound insulation vibration absorber is installed, when insulating against sound within being used for building, according to GB/T50121-2005 " Standard for assessment of building sound insulation ", when adopting frequency spectrum correction C (frequency spectrum 1), weighted transmission loss is D
NT, w+ C=69 (2 ,-9) decibel, sound insulation property is classified as 9; Adopt frequency spectrum correction C
TrWhen (frequency spectrum 2), weighted transmission loss is D
NT, w+ C
Tr=57 decibels, sound insulation property is classified as 9, report number: A09-03-22.
By above sound insulation vibration absorber is installed, when being used for laboratory airborne sound sound insulation, during member gross thickness (comprising damping body thickness and forms thickness) 60mm, forms size and mounting method are: 2m * 1.6m is 3.2m altogether
2When installing according to job specfication, detecting instrument: RTA840 system, this installs the project weighted transmission loss RW=49 decibel of examining, according to GB/T8485-2002 " the sound insulation property classification of external window of building airborne sound and detection method ", (45dB≤RW) particular content please refer to sound proof window GS/XF/49 examining report, report number: A07-09-16 to the sound insulation class of judging this member as 6 grades.
By above sound insulation vibration absorber is installed, when insulating against sound within being used for building, according to GB/T50121-2005 " Standard for assessment of building sound insulation ", when adopting frequency spectrum correction C (frequency spectrum 1), weighted transmission loss is D
NT, w+C=69 (2 ,-9) decibel, sound insulation property is classified as 9; Adopt frequency spectrum correction C
TrWhen (frequency spectrum 2), weighted transmission loss is D
NT, w+ C
Tr=57 decibels, sound insulation property is classified as 9, report number: A09-03-22.
In the embodiments of the invention two, as shown in Figure 2, be installed on the position at top, house as example take a kind of vibration absorber that insulates against sound, specifically comprise: braced structures and damping layer, described damping layer comprises: gripper shoe 25 and damping body 24, described damping body 24 is made by the material that plastic deformation can occur, described gripper shoe 25 fixedly is bonded in described damping body 24 tops, and by expansion bolt 22 and angle steel 23 (can adopt during implementation and can adopt 40 * 40 * 2 angle steel) supporting structure 26 is fixed on the building masonry wall 31.
Its above embodiment is at the scene in the implementation procedure, specific implementation process as: need to insulate against sound to an inside vibrative " antrum tympanicum " now subtracts battle array, because " antrum tympanicum " is in the civil construction, therefore, when in " antrum tympanicum " inner performance, because its inner vibrations and sound that sends of beating a drum that produces can cause at least noise of dual mode institute output, a kind of noise is because the air-borne sound that the sound that itself sends causes, another kind of noise is because " vibration of beating a drum " generation is moved constructure inner structure (as: body of wall, window and ground) thus the noise that the vibration that produces brings owing to structure-borne sound transmission, the present invention is directed to two kinds of above noises and given especially structural design, at first, vibration insulation is laid on ground at " antrum tympanicum ", and establish damping layer on described vibration insulation upper berth, also can lay one deck or one deck gripper shoe at least on its damping layer, the main material of the gripper shoe of laying can be to have the metal sheet of support function or steel plate or the iron plate of other materials, its metal sheet does not need larger thickness, can play its steel work of support gets final product, be equivalent to " the first sound insulation unit " mentioned among the present invention, the first sound insulation unit is layed in the whole ground of its " antrum tympanicum ", and in the inner space of first sound insulation unit and " antrum tympanicum ", make up the structure in " in the room room ", its " in the room room " structure is carried out the structure of four sides body of wall as support keel by the present invention's mentioned " braced structures ", simultaneously (in the room on the room steel work bottom) lays " the second sound insulation unit " on constructed good " in the room room " structural floor, can be by the earth construction in the sheet materials such as gripper shoe and the lumber core structure " in the room room " on the second sound insulation unit, and the player plays at its described " in the room room " earth construction, subtract gust effect and can install at top or the wall that former " antrum tympanicum " reach " in the room room " " the first sound insulation unit " or " second insulate against sound unit " additional for obtaining better sound insulation, above structure is owing to adopted the vibration damping sound insulating structure that reaches " structure-borne sound transmission " for " air-borne sound ", therefore, after enforcement, obtained good defening effect.Architectural environment inspection center of Tsing-Hua University has carried out its project name to said structure and (has detected foundation: GB/T50121-2005 " Standard for assessment of building sound insulation " and GB/T 19889 for " airborne sound sound insulation in-site measurement between interior two Room of building ".4-2005/ISO 140-4:1998 " acoustics building and building unit sound insulation measurement the 4th part: the in-site measurement of airborne sound sound insulation between the room ") its testing result shows, when " two-door closing " its " " (sound insulation factor) is 69 (2 to weighted standard sound pressure extreme difference,-9) decibel, when 9 grades of sound insulation standards that are higher than country, its defening effect are higher than " two-door the closing " of national requirements its " " (sound insulation factor) is 5 grades of sound insulation standards of 40～35 decibels to weighted standard sound pressure extreme difference; " " (sound insulation factor) is respectively 50 (0 to weighted standard sound pressure extreme difference to detect simultaneously when " external door close inside door is opened or inside door pass external door is opened " it,-2), 51 (2,-7) decibel, 8 grades, 7 grades sound insulation standards that are equivalent to country, the external door that its defening effect is higher than national requirements closes that inside door is opened or inside door closes external door and opens " time its " " (sound insulation factor) is 4 grades of sound insulation standards of 40～35 decibels to weighted standard sound pressure extreme difference, from above examining report obtained obvious defening effect the invention process process as can be known.
By above indoor sound insulating vibration absorber, can effectively reduce the sound by indoor generation of vibration, because do not need the original building structure is transformed, just enforcement can be installed, therefore use flexibly, easy for installation, simultaneously can be for different installation requirements, flexible design draw bail and damping structure, thus better meet installation requirement, reach better sound insulation effectiveness in vibration suppression.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (10)
- One kind sound insulation vibration absorber, it is characterized in that, comprise: braced structures, the first sound insulation unit and the second sound insulation unit form, described braced structures is the tubular construction that can surround the space and have the bottom surface, described the first sound insulation unit comprises: the first damping layer and the first vibration insulation, described the first vibration insulation is bonded in described the first damping layer below, described the first damping layer comprises: gripper shoe and damping body, described damping body is made by the material that plastic deformation can occur, and described gripper shoe fixedly is bonded in described damping body top; Described the second sound insulation unit comprises: the second damping layer and the second vibration insulation, described the second damping layer are bonded in described the second vibration insulation top, and described the second damping layer is consistent with described the first damping layer structure; Fitting and be fixed in the upside of described braced structures bottom surface and place described braced structures interior volume in described the first sound insulation unit, fits and be fixed in described supporting mechanism bottom surface downside and place described braced structures space outside in described the second sound insulation unit.
- 2. install as described in claim 1, it is characterized in that described braced structures is for can surround tubular construction enclosure space and that have bottom surface or end face.
- 3. the structure described in claim 1 or 2 is characterized in that, described braced structures specifically comprises: bracing frame and supporter, above support are installed on the bracing frame side, and can consist of the side and crowd around structure.
- 4. install as described in claim 3, it is characterized in that, described the second sound insulation unit of described braced structures end face downside bonding fixed installation.
- 5. install as described in claim 3, it is characterized in that, the inner filling sound absorption of support frame as described above is cotton.
- 6. installing as described in claim 3, it is characterized in that, fits and is fixed in support frame as described above bottom surface downside and places described braced structures space outside in described the second sound insulation unit.
- 7. install as described in claim 1, it is characterized in that, clamping fixing at least one deck core-board between described braced structures and the first sound insulation unit or between described braced structures and the second sound insulation unit, clamping fixing at least one deck core-board.
- 8. install as described in claim 1, it is characterized in that, described the first sound insulation unit specifically can comprise: at least two the first damping layers and the first vibration insulation, fitting between described at least two the first damping layers is fixedly connected with, and described at least two the first damping layers are fitted and connected and described the first vibration insulation top; Or described the second sound insulation unit specifically can comprise: at least two the second damping layers and the second vibration insulation, fitting between described at least two the second damping layers is fixedly connected with, described at least two the second damping layers be fitted and connected and described the second vibration insulation below.
- 9. install as described in claim 1, it is characterized in that described vibration insulation comprises at least one deck vibration isolation plate at least.
- 10. a sound insulation oscillation damping method is characterized in that,Noise source is arranged at described sound insulation vibration absorber braced structures inside or is arranged at top, described sound insulation vibration absorber braced structures bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210002451.XA CN103061424B (en) | 2011-10-21 | 2012-01-06 | A kind of sound insulation vibration absorber |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103229663 | 2011-10-21 | ||
| CN201110322966 | 2011-10-21 | ||
| CN201110322966.3 | 2011-10-21 | ||
| CN201210002451.XA CN103061424B (en) | 2011-10-21 | 2012-01-06 | A kind of sound insulation vibration absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103061424A true CN103061424A (en) | 2013-04-24 |
| CN103061424B CN103061424B (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210002451.XA Expired - Fee Related CN103061424B (en) | 2011-10-21 | 2012-01-06 | A kind of sound insulation vibration absorber |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811913A (en) * | 2019-03-22 | 2019-05-28 | 贾猛虎 | A kind of vibration damping sound insulating structure and its mounting process |
| CN110656755A (en) * | 2019-10-30 | 2020-01-07 | 安徽绿谷新材料有限公司 | Floor slab sound insulation and shock absorption structure based on rubber pads and construction method thereof |
| CN113404174A (en) * | 2021-07-06 | 2021-09-17 | 江苏世科环境发展有限公司 | Sound insulation vibration attenuation panel and flexible connection spare |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003122371A (en) * | 2001-10-11 | 2003-04-25 | Showa Electric Wire & Cable Co Ltd | Sound absorbing and vibration damping material |
| CN101691119A (en) * | 2009-09-18 | 2010-04-07 | 广州市延昌新型塑胶制品有限公司 | High speed train damping sound insulation sheet material and manufacturing method thereof |
| CN102179978A (en) * | 2011-02-15 | 2011-09-14 | 中国船舶重工集团公司第七二五研究所 | Sandwich damping composite material |
| CN202788532U (en) * | 2011-10-21 | 2013-03-13 | 贾猛虎 | Sound insulation and vibration damping device |
-
2012
- 2012-01-06 CN CN201210002451.XA patent/CN103061424B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003122371A (en) * | 2001-10-11 | 2003-04-25 | Showa Electric Wire & Cable Co Ltd | Sound absorbing and vibration damping material |
| CN101691119A (en) * | 2009-09-18 | 2010-04-07 | 广州市延昌新型塑胶制品有限公司 | High speed train damping sound insulation sheet material and manufacturing method thereof |
| CN102179978A (en) * | 2011-02-15 | 2011-09-14 | 中国船舶重工集团公司第七二五研究所 | Sandwich damping composite material |
| CN202788532U (en) * | 2011-10-21 | 2013-03-13 | 贾猛虎 | Sound insulation and vibration damping device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811913A (en) * | 2019-03-22 | 2019-05-28 | 贾猛虎 | A kind of vibration damping sound insulating structure and its mounting process |
| CN110656755A (en) * | 2019-10-30 | 2020-01-07 | 安徽绿谷新材料有限公司 | Floor slab sound insulation and shock absorption structure based on rubber pads and construction method thereof |
| CN113404174A (en) * | 2021-07-06 | 2021-09-17 | 江苏世科环境发展有限公司 | Sound insulation vibration attenuation panel and flexible connection spare |
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| CN103061424B (en) | 2016-12-14 |
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