CN109859732A - The standardized sound insulation sound absorption unitary module of one kind and selection method - Google Patents
The standardized sound insulation sound absorption unitary module of one kind and selection method Download PDFInfo
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- CN109859732A CN109859732A CN201910242475.4A CN201910242475A CN109859732A CN 109859732 A CN109859732 A CN 109859732A CN 201910242475 A CN201910242475 A CN 201910242475A CN 109859732 A CN109859732 A CN 109859732A
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
- G10K11/168—Plural layers of different materials, e.g. sandwiches
Abstract
The invention discloses a kind of standardized sound insulation sound absorption unitary modules, including supporting frame, the obverse and reverse of supporting frame is provided with metal sheet, at least one sound insulation unit and a sound absorption unit are provided between two metal sheets, when the unit that insulates against sound is multiple, pass through bonding connection between two neighboring sound insulation unit, sound insulation unit is made of the waterproof fireproofing high-density plate and acoustical cotton layer being bonded together, sound absorption unit is by the waterproof fireproofing high-density plate that successively bonds, acoustical cotton layer and separation layer composition, separation layer is non-woven fabrics or hydrophobic cloth, one of metal sheet surface offers through-hole and forms perforated plate, absorb sound unit and perforated metal bonding connection；And a kind of method for calculating sound insulation unit and usage amount is disclosed.Present invention sound insulation effect with higher prepares easy making process, and sound insulation, sound absorption effect avoid declining in certain special frequency channel sound insulation properties, also without no acoustic bridge defect.
Description
Technical field
The present invention relates to sound insulation and noise reduction fields, and in particular to the standardized sound insulation sound absorption unitary module of one kind and selecting party
Method.
Background technique
In noise and vibration control field, sound insulating material and sound-absorbing material are different two kinds of materials, and the two function is not
With, sound insulating material is mainly the problem of sound-absorbing material mainly inhibits sound wave reflection the problem of inhibiting acoustic wave transmission.The two exists
Also differ widely in form, sound insulating material is all closely knit pore-free material composition mostly；And sound-absorbing material is porous density mostly
Lesser material, such as centrifugally glass-wool plate, perforation wood based panel etc..
In noise reduction field, some application scenarios are to need the sound insulation material that needs to absorb sound, but can provide in the market again that insulates against sound
What material and sound-absorbing material were separate from mostly, in engineering construction, by installation keel structure, the two is linked together,
To reach purpose both with sound insulation and sound absorption.This just brings some problems, that is, has installed mostly a procedure, quality and less may be used
Control, the professional quality of heavy dependence installer；And bring the rising of cost.
Summary of the invention
It absorbs sound unitary module and selection method the technical problem to be solved in the present invention is to provide a kind of standardized sound insulation,
Sound insulation effect with higher prepares easy making process, and sound insulation, sound absorption effect avoid declining in certain special frequency channel sound insulation properties,
Also without no acoustic bridge defect.
In order to solve the above-mentioned technical problems, the present invention provides a kind of standardized sound insulation sound absorption unitary modules, including
Supporting frame, the obverse and reverse of supporting frame are provided with metal sheet, are provided at least one between two metal sheets
Insulate against sound unit and a sound absorption unit, when the unit that insulates against sound is multiple, passes through bonding connection, institute between two neighboring sound insulation unit
It states sound insulation unit to be made of the waterproof fireproofing high-density plate and acoustical cotton layer being bonded together, the sound absorption unit is by successively bonding
Waterproof fireproofing high-density plate, acoustical cotton layer and separation layer composition, the separation layer be non-woven fabrics or hydrophobic cloth, one of them is thin
Metal sheet surface offers through-hole and forms perforated plate, and the sound absorption unit and perforated metal bonding connect.
Further, reinforcement groove is provided on the outer peripheral surface of the supporting frame.
Further, the supporting frame includes upper encloser and lower encioser, and the upper encloser can be located on lower encioser,
Rubber partition is provided between the internal ring wall of the upper encloser and the external annulus of lower encioser, the rubber partition is fixed at down
On the external annulus of housing.
Further, the installation direction side that the rubber partition is located at upper encloser is provided with guiding surface, the rubber
Partition surface is provided with burr.
A kind of selection method designs need according to oise insulation factor including unitary module described in claim 1-4 any one
Seek the sound insulation element number of selection unitary module；
Oise insulation factor calculating formula are as follows:
R=23lg (m1+m2)-11.5+ΔR(m1+m2≥200kg/m2)
R=13lg (m1+m2)+11.5+ΔR(m1+m2≤200kg/m2)。
It further, further include detection device, the detection device is used to detect the practical oise insulation factor of unitary module, will
The theoretical oise insulation factor that practical oise insulation factor and oise insulation factor calculating formula obtain compares and determines final sound insulation element number；The detection dress
The first cabinet, the second cabinet and third cabinet including setting gradually are set, first cabinet and the third cabinet are located at institute
The opposite two sides of the second cabinet are stated, and are detachably connected by connection component and second cabinet；On first cabinet
The first intercommunicating pore is offered, third connecting hole, first intercommunicating pore and the third connecting are offered on the third cabinet
Kong Jun is towards second cabinet；Second cabinet, which runs through, offers the second intercommunicating pore, the center line of first intercommunicating pore,
The center line of second intercommunicating pore and the center line in the third connecting hole are collinearly arranged；It is placed in first cabinet
Noise source, monitor is placed in the third cabinet, and second cabinet is removable by locked assembly and the sound insulation module
Unload connection；
The locked assembly includes interlocking bar, bottom plate, handle and locking level, the inner wall of the bottom plate and second cabinet
Fitting, the handle and the bottom plate are hinged；The handle is rotatablely connected by connection strap and the locking level, described in driving
Locking level is contacted or is detached from the sound insulation module；One end of the interlocking bar and second cabinet are hinged, the other end and institute
Bottom plate is stated to be fixedly connected.
Further, the free-end of the locking level is threaded with telescopic rod, and the telescopic rod can be from the locking
It stretches out or is inserted into bar, to adjust the distance between the telescopic rod and the locking level, the free-end of the telescopic rod is provided with
Abut block.
Further, the bottom plate is connected by limit assembly with second cabinet, and the limit assembly includes limit
Block and the limiting slot cooperated with the limited block；The limited block is fixed with the bottom plate, the inner wall depression of second cabinet
It is formed with the limiting slot.
Further, first cabinet and the third cabinet include outer framework and inner frame, and the inner frame is embedding
It is located at the inside of the outer framework, and is provided with and subtracts between the angle of the outer framework at the angle of the inner frame and corresponding position
Shake block.
Further, the connection component includes fixing seat, handle, lock and the fixture block with the snap fit；It is described
The side of first cabinet or the third cabinet is arranged in fixing seat, and the end of the handle passes through the first rotational pin and institute
Fixing seat rotation connection is stated, and the lock is rotatablely connected by the middle part of the second rotational pin and the handle；The fixture block is solid
It is scheduled on second cabinet, and is recessed on the fixture block and is stated card slot, to be embedded the lock.
Beneficial effects of the present invention:
The module of sound insulation and sound absorption function is provided simultaneously with when of the invention, sound insulation property can install sound insulation combination list by adjusting
Member realizes that mean transmission loss reaches as high as 100dB or more, and sound absorbing performance can be by adjusting the cavity thickness of sound absorption unit, filling out
Thickness, the density of material are filled to realize, average sound absorption coefficient can be adjusted between 0.5~0.999；
Sound insulation assembled unit and sound absorption assembled unit are fixed as one by the combination sheet metal component with sealing function, intermediate
Sound insulation and absorbent treatment structure bonded by environment protection type high-strength binder；The assembled unit that insulates against sound uses distinctive method, keeps away
Exempt from the stiffness control zone, damping control area that decline in certain special frequency channel sound insulation properties, i.e., in spectrum distribution and the control that coincide
The sound insulation property of Qu Changyou declines such case；Without acoustic bridge defect, to improve sound insulation property to greatest extent；Third, should
Sound insulation module machining accuracy is high, and construction and installation are convenient and efficient, do not need additional cavity keel bracket, avoid acoustic bridge defect；
Cost performance is very high, in the case where same oise insulation factor, can reduce by 50% or more cost than conventional metal plate sound insulation module.
Detailed description of the invention
Fig. 1 is sound insulation module structural schematic diagram of the invention；
Fig. 2 is sound insulation module cross section structure schematic diagram of the invention；
Fig. 3 is detection device overall schematic of the invention；
Fig. 4 is the enlarged drawing of the part A of Fig. 3；
Fig. 5 is the explosive view of this detection device；
Fig. 6 is the enlarged drawing of part B in Fig. 5.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It more fully understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
Shown in referring to Fig.1, an embodiment of standardized sound insulation sound absorption unitary module of the invention, including supporting frame
111, the obverse and reverse of supporting frame is provided with metal sheet 112, be provided between two metal sheets at least one every
Sound unit 113 and a sound absorption unit 114 are connected between two neighboring sound insulation unit by bonding when the unit that insulates against sound is multiple
It connects, sound insulation unit is made of the waterproof fireproofing high-density plate 115 and acoustical cotton layer 116 being bonded together, and the unit that absorbs sound is by successively
Waterproof fireproofing high-density plate, acoustical cotton layer and the separation layer 117 of bonding form, and separation layer is non-woven fabrics or hydrophobic cloth, play and keep away
Exempt from sound-absorbing filler object fiber fines particle to be emitted in air, one of metal sheet surface offers through-hole and forms perforation
Plate, sound absorption unit and perforated metal bonding connect.The structure not only meets sound insulation and requires but also meet sound absorption requirement；Different quality
The material of density, not acoustic impedance carries out modular combination, is fixed by metal edge frame bracket, to reach different sound insulation
The demand of amount；Because the material of different densities and thickness is bonded together by Environment-friendlyadhesive adhesive, thin plate is effectively inhibited
Deformation, thus the defect for avoiding within the scope of the threshold of audibility of human ear oise insulation factor from declining；Processing is quick, precision is high, economy
Than high, appearance looks elegant, has fire-proof and damp-proof function；It is able to satisfy different application sound insulation and noise reducing scenes.
When implementing preparation, above-mentioned technology implementation steps:
1, metal framework is cut first according to required size, then metal framework is linked into one by private link corner brace
Stable rectangle forms supporting frame；
2, spray metal thin plate is passed through into equipment extrusion forming；(paint color can freely be set；Sheet metal thickness is
0.4~1.2MM etc.；Material can include but is not limited to steel plate, aluminium sheet, copper sheet etc.)
3, the spray metal thin plate for processing step 2, is placed under the supporting frame of step 1；
4, according to step 3, in sheet metal inner wall brushing high-strength environment-friendly adhesive；It is anti-that one layer of high density moisture-proof is placed again
Fiery plate (with a thickness of 6MM~12MM etc., material includes but is not limited to calcium silicate board, magnesium quarrel, expanded pearlite rock beam etc.)；
5, according to step 4, the brushing high-strength environment-friendly adhesive on high-density plate；One layer of acoustical cotton (acoustical cotton is placed again
Bulk density be 80K~120K differ；Material includes but is not limited to that rock wool, centrifugally glass-wool, polyester fiber cotton etc. have sound absorption function
The porous material of energy)；
6, one layer of high density moisture-proof fire-proof plate is placed (not with a thickness of 6MM~12MM according to step 5, on above-mentioned acoustical cotton
Deng material includes but is not limited to calcium silicate board, magnesium quarrel, expanded pearlite rock beam etc.)；
7, above step 4 and 6 is an acoustic insulating unit；
8, according to different oise insulation factor demands, the above acoustic insulating unit can be repeated to be arranged；Reach the oise insulation factor that sets as
Only；
9, according to step 8, then place one layer of sound-absorbing filler object, density be 32K~48K, material may be selected centrifugally glass-wool,
Or polyester fiber cotton etc.；
10, according to step 9, non-woven fabrics or hydrophobic cloth on sound-absorbing filler；
11, according to step 10, the spray metal that the perforation of one layer of extrusion forming is installed on non-woven fabrics or on hydrophobic cloth is thin
Plate.
12, step 9~11 are a sound-absorbing assembled unit.
13, this technology is summarized are as follows: several sound insulation assembled units add a sound absorption assembled unit.
So far, the manufacturing process of entire sound insulation sound absorption integrated module is completed.
Above structure has the following characteristics that
A, the technology is the composite structure of a kind of multilayer mass density is different, acoustic impedance is different sound insulation, sound-absorbing material；
B, the technology is a kind of structure that insulate against sound assembled unit and the assembled unit that absorbs sound are integrated；Insulate against sound assembled unit
Surface layer be non-porous thin plate spray metal, the surface layer of the assembled unit that absorbs sound is perforation thin plate spray metal.Two, facing metal thin plate
Material include but is not limited to be steel plate or aluminium sheet, differed with a thickness of 0.4MM, 0.5,0.8,1.0,1.2MM；The color of spraying can be with
Unrestricted choice meets appearance demand；Sound insulation combination can be set to several sound insulation assembled units；Only one list is combined in sound absorption
Member；
C, the sound insulation assembled unit of the technology are as follows: cavity sound insulating structure, specially waterproof fireproofing high-density plate (G)+sound-absorbing
Cotton layer (Y) is an assembled unit；Several assembled units such as G+Y+G+Y+ are constituted, different assembled unit numbers
The oise insulation factor for measuring different；Wherein high-density plate material includes but is not limited to calcium silicate board, fire-proof plate etc.；Acoustical cotton layer material
Including being limited to rock wool, centrifugally glass-wool, polyester fiber etc. when sound wave enters from high density sound insulationg board the acoustical cotton layer of low-density, warp
The medium for crossing two different density, according to air-borne sound soundproof principle, sound can translate into thermal energy consumption and fall, thus reach every
The purpose of sound.
It is provided on the outer peripheral surface of supporting frame and reinforces groove 121.So that support construction are as follows: a kind of concave keel or one
Kind V-type keel are as frame as support construction, and this keel are fixed by the good elastic connector of damping capacity, by table
Face sheet metal and intermediate sound insulation assembled unit, are kept away together by environment protection type high-strength adhesive bonding, can also in order to avoid
Acoustic bridge defect.
Referring to shown in Fig. 2, above-mentioned supporting frame can also include upper encloser 118 and lower encioser 119, and upper encloser can cover
It is located on lower encioser, rubber partition 120 is provided between the internal ring wall of upper encloser and the external annulus of lower encioser, rubber partition is fixed
It is arranged on the external annulus of lower encioser；
The support frame structure of the technology are as follows: be nested structure up and down, and centre is separated using rubber to connect, that is,
It is equivalent to the structure of bridge-cut-off aluminum, so that support frame structure has the function of bridge cut-off, achievees the effect that acoustical and thermal；
The product shape thickness that the technology is presented, including it is not limited to 5CM thick, 7.5CM thickness, 10CM thickness, 12.5CM
Thickness, 15CM thickness etc..When needing different oise insulation factors, different sound insulation assembled units will be selected；
Specific in use, including following methods:
First individually produce upper encloser, lower encioser, rubber partition, sound insulation unit and metal sheet；The sound insulation module is mainly used
It uses in the environment of uncertain sound insulation demand, therefore is not assembled all after individually producing, but be partially assembled, by rubber
Partition be mounted on lower encioser surface, two metal sheets be fixedly connected with upper encloser and lower encioser respectively, by one of them every
Sound unit is bonded in lower encioser, and waterproof fireproofing high-density plate is bonded in upper encloser；So that the syntagmatic being basically unchanged
It is combined connection；
Then by lower encioser and upper encloser it is Chong Die in opposite directions put and with remaining sound insulation unit together band to construction site；
Increase sound insulation unit usage quantity according to the sound insulation demand for using position, on the sound insulation unit in lower encioser and leads to
It crosses and is adhesively fixed；
It carries out screening suitable number combinations and be pasted less than the mode of assembled unit oise insulation factor according to actual needs,
After fitting, upper encloser is located on lower encioser, is tapped using hammer, upper cover clamshell inner wall and rubber partition interference are matched
Merge until the waterproof fireproofing high-density plate in upper cover clamshell is abutted with sound insulation unit.Specifically, rubber partition is located at upper encloser
Installation direction side be provided with guiding surface 118, rubber partition surface is provided with burr, so that upper encloser installation is steady
It is fixed, it is unlikely to stuck, and after installation, it is good to consolidate effect；When assembled unit quantity is few, the distance of percussion is larger, upper encloser
It is more with lower encioser lap；And when assembled unit quantity is big, the distance of percussion is smaller, upper encloser and lower encioser lap
It is few.
Certainly, the size of upper encloser and lower encioser, which has, limits, and one group of upper encloser and lower encioser cooperate applicable highest 2-3
The combination of unit, preferably to improve applicability.Various sizes of upper encloser can of course be replaced to adapt to all combinations and need
It asks.
The resonant frequency and critical frequency of metal sheet be all within the scope of the threshold of audibility of human ear, so designer generally for
The above stiffness control zone and identical control zone are avoided, many cautious measures are taken.This is the common fault of single homogeneous materials.
The technical program, so that the resonant frequency of sound insulation composite module is deviated to low frequency direction, critical frequency is to high frequency deviation
It moves, the sound insulation property of product is substantially improved in the threshold of audibility range far from human ear.Its central principle is: the composite structure will be different
The material of acoustic impedance, different densities of weight is combined, and sound wave is made to generate multiple reflections on each bed boundary, due to each sound insulation
Material impedance in unit differs bigger (steel plate and acoustical cotton), and reflection of the acoustic energy is bigger, and transmission sound can be smaller, so that every
Volume is bigger；In addition, high-density plate is attached on sheet metal, by the great deformation for inhibiting steel plate, sheet metal is avoided to be easy
Present resonant frequency area and coincidence frequency separate the case where volume declines to a great extent.
A kind of selection method is also provided, including above-mentioned unitary module, integral type is selected according to oise insulation factor design requirement
The sound insulation element number of module；Can quickly judge to actually use quantity required, unqualified or more increases are avoided the occurrence of
The problem of quantity, guarantees quality and guarantees cost.
Wherein, oise insulation factor calculating formula are as follows:
R=23lg (m1+m2)-11.5+ΔR(m1+m2≥200kg/m2)
R=13lg (m1+m2)+11.5+ΔR(m1+m2≤200kg/m2)；
It is derived from according to continuous Data Integration and practical experience.
The composite structure will avoid conventional single homogeneous sound insulating material in the sound insulation in low-frequency resonance area and critical frequency region
The phenomenon that amount declines to a great extent, it is whole to promote sound insulation property.
It further include detection device, detection device is used to detect the practical oise insulation factor of unitary module, by by practical sound insulation
The theoretical oise insulation factor that amount is obtained with oise insulation factor calculating formula compares and determines final sound insulation element number, which can to formula into
Row correction learns producers or assembler, and the gap of actual product and theoretical calculation can according to gap
Guarantee the qualification rate of product in actual use；
Referring to shown in Fig. 3 to Fig. 6, specifically, sound insulation test case includes the first cabinet 1, the second cabinet 2 and third cabinet 3,
First cabinet 1, the second cabinet 2 and third cabinet 3 are set gradually, and the first cabinet 1 and third cabinet 3 are arranged at the second cabinet
2 opposite two sides.First cabinet 1 and third cabinet 3 are in hollow setting, and the first cabinet 1 is opened up close to the end face of the second cabinet 2
There is the first intercommunicating pore 11, third cabinet 3 offers third connecting hole 31 close to the end face of the second cabinet 2, and the second cabinet 2, which runs through, to be opened
Equipped with the second intercommunicating pore 21, the first intercommunicating pore 11, the second intercommunicating pore 21 and third connecting hole 31 are sequentially communicated, and the first intercommunicating pore
The center line of 11 center line, the center line of the second intercommunicating pore 21 and third connecting hole 31 is collinearly arranged.It is put in first cabinet 1
It is equipped with noise source, monitor is placed in third cabinet 3, is removably fixedly installed sound insulation module in the second cabinet 2, thus
The sound insulation value of test material is capable of detecting when using noise source and monitor.
Referring to Fig. 5, when sound insulation module is fixed on the second 2 inside of cabinet, it is in for the ease of placing the second intercommunicating pore 21
Prismoid shaped setting, i.e. the opening area at 21 both ends of the second intercommunicating pore is not consistent, and the second intercommunicating pore 21 is close to the in the present embodiment
The opening area of one end of one cabinet 1 is larger.Simultaneously for the ease of the fixation of sound insulation module, the second intercommunicating pore 21 is close to the first case
The opening of 1 one end of body is greater than sound insulation module, so as to which sound insulation module to be placed on inside the second cabinet 2；And the second intercommunicating pore
21 opening close to 3 one end of third cabinet is less than sound insulation module, so that sound insulation module can not be detached from from its end；In the present embodiment
During testing sound insulation module, the end face of sound insulation module is abutted with the inner wall of the second cabinet 2, and abutted position position
In the second intercommunicating pore 21 close to one end of third cabinet 3.While the locking for the ease of realizing sound insulation module and the second cabinet 2,
Second cabinet 2 is applied to sound insulation module thrust by locked assembly, and sound insulation module is fixed on inside the second cabinet 2.
Referring to figure 5 and figure 6, locked assembly includes bottom plate 71, handle 73 and locking level 74, bottom plate 71 and the second cabinet 2
Inner wall fitting, one end of handle 73 and bottom plate 71 are hinged, and handle 73 passes through connection strap and locking level 74 at its medium position
Hingedly, i.e., the both ends of locking level 74 are hinged respectively at handle 73 and locking level 74.When rotational handle 73, handle 73, which drives, to be connected
Narrow bars 732 are rotated around hinge joint, while connection strap 732 can pull the axial movement of its locking level 74 of locking level 74.Locking
The free-end of bar 74 can be abutted with the end face of sound insulation module, in order to improve the fixed stability of sound insulation module, the present embodiment
Middle locked assembly is provided with 4 groups, and is arranged at position corresponding with 4 angles of sound insulation module.
Referring to Fig. 6, locked assembly further includes interlocking bar 72, and one end of interlocking bar 72 and the second cabinet 2 are rotatablely connected, another
One end is fixedly connected with bottom plate 71, thus the position of bottom plate 71 can be adjusted by interlocking bar 72.When promotion interlocking bar 72 moves
When, the inner wall that bottom plate 71 can be bonded the second cabinet 2 moves in a straight line, so that locked assembly can adapt to the sound insulation of plurality of specifications
Module.In order to enable bottom plate 71 is bonded with the inner wall of the second cabinet 2 always in the process of movement, bottom plate 71 and the second cabinet 2
Between be provided with limit assembly, limit assembly includes limited block (not shown) and the limiting slot for being embedded limited block (in figure
It is not shown).Limited block is fixedly connected with bottom plate 71, while limiting slot is opened up along the direction of the second intercommunicating pore 21.
Referring to Fig. 6, the free-end of locking level 74 is threaded with telescopic rod 741, the end of telescopic rod 741 can plug into
The end of locking level 74 can adjust telescopic rod 741 from locking level using the helicitic texture between locking level 74 and telescopic rod 741
The distance that 74 inside are stretched out, so as to adjust telescopic rod 741 according to the specification of sound insulation module, to increase the suitable of sound insulation test case
Use range.In addition, the free-end of telescopic rod 741, which is fixed with, abuts block 742, abuts block 742 and be capable of increasing telescopic rod 741 and sound insulation
The contact area of module, stress when reducing fixed sound insulation module are concentrated, and have certain protective effect to sound insulation module.
Anti-slip cover 731 is arranged on handle 73 for ease of operation referring to Fig. 6, to increase the stiction of handle 73,
The material preferred rubber of Anti-slip cover 731 in the present embodiment.
Referring to Fig. 5, the first cabinet 1 includes outer framework 51 and the inner frame 52 being embedded inside outer framework 51, outer framework 51
It is overlapped with the center of inner frame 52.In order to improve accuracy when detection, reduce interference of the ambient noise to test result, outline border
The outer wall of frame 51 is coated with acoustic material, so that at the test space after the first cabinet 1, the second cabinet 2 and the connection of third cabinet 3
In relatively closed environment, to improve the accuracy of test result.Pass through at inner frame 52 and the corresponding angle of outer framework 51
Damping block 53 connects, and can reduce the vibration of the first cabinet 1 when noise source works using the structure and damping block 53 of inside and outside nesting
It is dynamic.
Referring to Fig. 4, third cabinet 3 includes outer framework 51 and the inner frame 52 being embedded inside outer framework 51, outer framework 51
It is overlapped with the center of inner frame 52.In order to improve accuracy when detection, reduce interference of the ambient noise to test result, outline border
The outer wall of frame 51 is coated with acoustic material.Pass through damping block 53 at inner frame 52 and the corresponding angle of outer framework 51 to connect, utilize
The vibration of third cabinet 3 when the structure and damping block 53 of inside and outside nesting can reduce noise source work.
Referring to Fig. 3 and Fig. 4, the first cabinet 1 and third cabinet 3 are detachably connected by connection component with the second cabinet 2,
Connection component includes fixing seat 41, handle 42, lock 43 and the fixture block 22 cooperated with lock 43.Fixing seat 41 is fixed at
On the side of one cabinet 1 or third cabinet 3, in order to be fixed on the fixture block 22 being arranged on 2 side of the second cabinet and connect.?
Hand 42 is rotatablely connected close to one end of the second cabinet 2 by the first rotational pin and fixing seat 41, and the middle part of handle 42 passes through second
43 rotation connection of rotational pin and lock drives 43 movement of lock by swing handle 42, to realize the company of lock 43 and fixture block 22
It connects.Fixture block 22 is recessed the card slot 221 having for inlay card lock 43, can be realized the using the inlay card power of card slot 221 and lock 43
One cabinet 1, the second cabinet 2 and third cabinet 3 quick-assembling reconciliation divided by facilitate detection, while improve sound insulation module detection
Efficiency.
Referring to Fig. 3-Fig. 5, two opposite end faces of the second cabinet 2, which are sticked, sealant 23, and sealant 23 includes several
The sealing strip 231 being set side by side, sealing strip 231 are hollow semicolumn.Sealant 23 setting with the first cabinet 1 and third case
On the end face that body 3 is bonded, it is capable of increasing the leakproofness of stitching portion；Simultaneously as sealing strip 231 is hollow semicylinder, because
And it can fill the gap that the first cabinet 1, the second cabinet 2 and 3 mating surface of third cabinet are generated by mismachining tolerance, improve close
Effect is closed, while damage of collision when assembly to the first cabinet 1, the second cabinet 2 and third cabinet 3 can be reduced.
Referring to Fig. 3, the first cabinet 1, the second cabinet 2 and third cabinet 3 have been respectively arranged below trolley 6, with convenient
It is mobile and assembled.The top of trolley 6 is provided with several buffer stoppers 61, and buffer stopper 61 is arranged in the 4 of trolley 6 in the present embodiment
At a angle, the vibration of the first cabinet 1, the second cabinet 2 and third cabinet 3 when buffer stopper 61 can reduce test.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
It encloses without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in the present invention
Protection scope within.Protection scope of the present invention is subject to claims.
Claims (10)
- The unitary module 1. a kind of standardized sound insulation absorbs sound, which is characterized in that including supporting frame, the front of supporting frame with Reverse side is provided with metal sheet, at least one sound insulation unit and a sound absorption unit are provided between two metal sheets, when When the unit that insulates against sound is multiple, between two neighboring sound insulation unit by bonding connection, the unit that insulates against sound is by being bonded together Waterproof fireproofing high-density plate and acoustical cotton layer composition, the sound absorption unit is by the waterproof fireproofing high-density plate, the sound-absorbing that successively bond Cotton layer and separation layer composition, the separation layer are non-woven fabrics or hydrophobic cloth, and one of metal sheet surface offers through-hole simultaneously Perforated plate is formed, the sound absorption unit and perforated metal bonding connect.
- The unitary module 2. standardized sound insulation as described in claim 1 absorbs sound, which is characterized in that outside the supporting frame Reinforcement groove is provided on circumferential surface.
- 3. standardized sound insulation sound absorption unitary module as described in claim 1, which is characterized in that the supporting frame includes Upper encloser and lower encioser, the upper encloser can be located on lower encioser, the internal ring wall of the upper encloser and the outer ring of lower encioser Rubber partition is provided between wall, the rubber partition is fixed on the external annulus of lower encioser.
- The unitary module 4. standardized sound insulation as claimed in claim 3 absorbs sound, which is characterized in that the rubber partition is located at The installation direction side of upper encloser is provided with guiding surface, and rubber partition surface is provided with burr.
- 5. a kind of selection method, which is characterized in that including unitary module described in claim 1-4 any one, according to every The sound insulation element number of volume design requirement selection unitary module；Oise insulation factor calculating formula are as follows:R=23lg (m1+m2)-11.5+ΔR(m1+m2≥200kg/m2)R=13lg (m1+m2)+11.5+ΔR(m1+m2≤200kg/m2)。
- 6. selection method as claimed in claim 5, which is characterized in that further include detection device, the detection device is for examining The practical oise insulation factor for surveying unitary module, the theoretical oise insulation factor that practical oise insulation factor is obtained with oise insulation factor calculating formula is compared and is determined Final sound insulation element number；The detection device includes the first cabinet, the second cabinet and third cabinet set gradually, and described One cabinet and the third cabinet are located at the opposite two sides of second cabinet, and pass through connection component and second cabinet It is detachably connected；The first intercommunicating pore is offered on first cabinet, and third connecting hole is offered on the third cabinet, it is described First intercommunicating pore and the third connecting hole are towards second cabinet；Second cabinet, which runs through, offers the second connection The center line in hole, the center line of first intercommunicating pore, the center line of second intercommunicating pore and the third connecting hole is total Line setting；It is placed with noise source in first cabinet, monitor is placed in the third cabinet, second cabinet passes through Locked assembly is detachably connected with the sound insulation module；The locked assembly includes interlocking bar, bottom plate, handle and locking level, the inner wall patch of the bottom plate and second cabinet It closes, the handle and the bottom plate are hinged；The handle is rotatablely connected by connection strap and the locking level, to drive the lock Fixed pole is contacted or is detached from the sound insulation module；One end of the interlocking bar and second cabinet are hinged, the other end with it is described Bottom plate is fixedly connected.
- 7. selection method as claimed in claim 6, which is characterized in that the free-end of the locking level is threaded with flexible Bar, the telescopic rod can be stretched out or are inserted into out of described locking level, with adjust between the telescopic rod and the locking level away from From the free-end of the telescopic rod is provided with abutting block.
- 8. selection method as claimed in claim 6, which is characterized in that the bottom plate passes through limit assembly and second cabinet Connection, the limit assembly include limited block and the limiting slot with limited block cooperation；The limited block and the bottom plate are solid Fixed, the inner wall depression of second cabinet is formed with the limiting slot.
- 9. selection method as claimed in claim 6, which is characterized in that first cabinet and the third cabinet include outer Frame and inner frame, the inner frame are embedded in the inside of the outer framework, and the angle of the inner frame and corresponding position Damping block is provided between the angle of the outer framework.
- 10. selection method as claimed in claim 6, which is characterized in that the connection component includes fixing seat, handle, lock With the fixture block with the snap fit；The side of first cabinet or the third cabinet is arranged in the fixing seat, described The end of handle is rotatablely connected by the first rotational pin and the fixing seat, and the lock passes through the second rotational pin and described The middle part of hand is rotatablely connected；The fixture block is fixed on second cabinet, and recess has card slot on the fixture block, to be embedded The lock.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910242475.4A CN109859732A (en) | 2019-03-28 | 2019-03-28 | The standardized sound insulation sound absorption unitary module of one kind and selection method |
| PCT/CN2019/120835 WO2020192160A1 (en) | 2019-03-28 | 2019-11-26 | Standardized sound insulation and sound absorption integrated module and selection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910242475.4A CN109859732A (en) | 2019-03-28 | 2019-03-28 | The standardized sound insulation sound absorption unitary module of one kind and selection method |
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| CN109859732A true CN109859732A (en) | 2019-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910242475.4A Pending CN109859732A (en) | 2019-03-28 | 2019-03-28 | The standardized sound insulation sound absorption unitary module of one kind and selection method |
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| CN (1) | CN109859732A (en) |
| WO (1) | WO2020192160A1 (en) |
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| CN112669801A (en) * | 2020-12-31 | 2021-04-16 | 上海电气燃气轮机有限公司 | Sound insulation and absorption plate unit, sound insulation and absorption plate and housing |
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| WO2020192160A1 (en) | 2020-10-01 |
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