CN209760064U - Road sound barrier - Google Patents
Road sound barrier Download PDFInfo
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- CN209760064U CN209760064U CN201920069484.3U CN201920069484U CN209760064U CN 209760064 U CN209760064 U CN 209760064U CN 201920069484 U CN201920069484 U CN 201920069484U CN 209760064 U CN209760064 U CN 209760064U
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- frame
- side plate
- sound
- rubber
- crossbeam
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- 230000004888 barrier function Effects 0.000 title claims abstract description 55
- 238000010521 absorption reaction Methods 0.000 claims abstract description 59
- 239000008187 granular material Substances 0.000 claims abstract description 28
- 239000002245 particle Substances 0.000 claims description 83
- 239000010920 waste tyre Substances 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 19
- 230000007246 mechanism Effects 0.000 abstract description 14
- 238000009413 insulation Methods 0.000 abstract description 4
- 239000011358 absorbing material Substances 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000009102 absorption Effects 0.000 description 49
- 239000007769 metal material Substances 0.000 description 17
- 239000002002 slurry Substances 0.000 description 10
- 229910052755 nonmetal Inorganic materials 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000004114 Ammonium polyphosphate Substances 0.000 description 4
- 229920000877 Melamine resin Polymers 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 235000019826 ammonium polyphosphate Nutrition 0.000 description 4
- 229920001276 ammonium polyphosphate Polymers 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000012814 acoustic material Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009103 reabsorption Effects 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The utility model discloses a road sound barrier relates to road engineering sound insulation and noise reduction technical field, including connecting the crossbeam, a plurality of rubber granule acoustic baffle and a plurality of supporting component who sets up side by side, supporting component includes frame and support frame, the whole C type that is of buckling of frame, support frame and frame fixed connection, a rubber granule acoustic baffle joint is between two adjacent frames, connect the equal fixed connection of crossbeam and each support frame, through adopting rubber granule acoustic baffle as sound absorbing material, road sound barrier quality is light, low cost, porous sound absorption mechanism and resonance sound absorption mechanism have, under the effect of frame, rubber granule acoustic baffle is whole to be the C type, reabsorb effectually to the noise of reflection and diffraction, and can absorb the noise of different frequency channels, road sound barrier noise reduction effect improves greatly.
Description
Technical Field
The utility model relates to a road engineering gives sound insulation and falls the technical field of making an uproar, especially relates to a road sound barrier.
background
When a highway and a railway cross population moving and living dense areas, road sound barriers are required to be arranged on two sides of the road so as to reduce the pollution of noise to the environment. At present, the adopted sound barriers are classified into a metal material sound barrier, a nonmetal material sound barrier, and a metal material and nonmetal material combined sound barrier. The metal material sound barrier, such as the sound barrier made of metal plate, metal mesh board, it is good to keep the shape ability of oneself, can make into many shapes, but compare with the sound barrier of non-metal material, the quality is heavy, the fabrication cost is high, and the noise strikes the surface of the metal material sound barrier, take place to reflect, return to the ambient environment again, the silencing effect is bad; non-metallic material sound barriers, such as sound barriers made of expanded perlite plates, foamed cement plates, cement wood chip plates and the like, have poor shape retention capability, are mostly made into straight plate structures, and have poor re-absorption effect on reflected and diffracted noise; the sound barrier combined by metal material and non-metal material, for example, the sound barrier made up by combining metal mesh plate and rock wool plate and metal mesh plate and glass wool plate, the metal material is wrapped on the external surface of non-metal material so as to make the non-metal material retain specific form, most of noise of said sound barrier can be injected into the non-metal material of internal layer from the metal material meshes, but because the external surface of the non-metal material is wrapped by metal material skin layer, the metal material skin layer also has a plane portion with large proportion, the noise can be injected into the plane portion of metal material skin layer, and can be reflected, so that the sound-insulating effect is obtained, and its sound-absorbing effect is small, and the noise can be reflected back into the environment around another side of road, so that its whole sound-. Therefore, it is an urgent problem to provide a road sound barrier which has light weight, low cost, porous sound absorption mechanism and resonance sound absorption mechanism, can absorb noise in different frequency bands, and has good sound absorption effect.
SUMMERY OF THE UTILITY MODEL
the utility model aims at providing a road sound barrier to solve the problem that above-mentioned prior art exists, make road sound barrier quality light, it is with low costs, have porous sound mechanism and resonance sound absorption sound mechanism of inhaling, not only will give sound insulation, sound absorption effect is good moreover.
In order to achieve the above object, the utility model provides a following scheme:
The utility model provides a road sound barrier, including connecting crossbeam, a plurality of rubber granule acoustic baffle and a plurality of supporting component who sets up side by side, supporting component includes frame and support frame, the whole C type that is of buckling of frame, the support frame with frame fixed connection, one rubber granule acoustic baffle joint is adjacent in two between the frame, connect crossbeam and each the equal fixed connection of support frame.
Preferably, the support frame includes support column and lower bracket crossbeam, lower bracket crossbeam perpendicular to the support column and with support column fixed connection, the support column with lower bracket crossbeam all with frame fixed connection, it includes horizontal crossbeam and last horizontal crossbeam to connect the crossbeam, horizontal crossbeam and each down equal fixed connection of bracket crossbeam, go up horizontal crossbeam and each equal fixed connection of support column.
Preferably, the frame is located between the upper fixing cross band and the upper horizontal cross beam, and the frame, the upper fixing cross band and the upper horizontal cross beam are connected through bolts.
Preferably, the frame is located between the lower fixing cross band and the lower horizontal cross beam, and the frame, the lower fixing cross band and the lower horizontal cross beam are connected through bolts.
Preferably, the rubber particle sound absorption plate comprises a rubber particle sound absorption layer, and the rubber particle sound absorption layer comprises the following components in parts by mass: 65-75 parts of rubber particles; 1.5-2.5 parts of pentaerythritol; 1.5-2.5 parts of melamine; 3-5 parts of ammonium polyphosphate; 4-8 parts of water; 12-18 parts of acrylic elastic emulsion.
Preferably, the rubber particles are made of waste tires.
Preferably, the rubber particle acoustic baffle is the cuboid structure, the rubber particle acoustic baffle still includes inside support chassis, the rubber particle acoustic baffle wrap in the surface of inside support chassis, just the rubber particle acoustic baffle adopts pours and makes.
preferably, the internal supporting framework comprises a rectangular bottom plate, and a first side plate, a second side plate, a third side plate and a fourth side plate which are perpendicular to the rectangular bottom plate, the first side plate and the second side plate are symmetrically arranged on the left side and the right side of the rectangular bottom plate, the third side plate and the fourth side plate are symmetrically arranged on the front side and the rear side of the rectangular bottom plate, and the bottom ends of the first side plate, the second side plate, the third side plate and the fourth side plate are fixedly connected with the bottom plate.
Preferably, the upper surface of the rubber particle sound absorption plate is a sound absorption surface, and the sound absorption surface is an uneven honeycomb pitted surface formed by rubber particles.
Preferably, the two sides of the frame are respectively provided with a first through groove and a second through groove, and the first through groove and the second through groove can be respectively clamped on the two sides of one rubber particle sound-absorbing plate.
The utility model discloses for prior art gain following technological effect:
the utility model provides a road sound barrier, the whole C type that is buckled of frame, a rubber granule acoustic baffle joint is between two adjacent frames, through adopting the rubber granule acoustic baffle as sound absorbing material, road sound barrier quality is light, low cost, porous sound absorption mechanism and resonance sound absorption mechanism have, and under the effect of frame, the whole C type that is of rubber granule acoustic baffle, the noise of reflection is caught by the upper and lower arc of rubber granule acoustic baffle, incide again on the sound absorbing surface of rubber granule acoustic baffle, absorb once more, repeated reflection many times-catches-incident-absorptive process, the noise of different frequency channels is absorbed, and the road sound barrier is effectual to the noise reabsorption of reflection and diffraction, road sound barrier noise reduction effect improves greatly.
Drawings
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic view of the overall structure of the road sound barrier provided by the present invention;
Fig. 2 is a front view of the road sound barrier provided by the present invention;
Fig. 3 is a schematic view of a prefabricated pouring manufacturing method of the rubber particle sound absorption plate.
In fig. 1-3:
The sound absorption structure comprises 1-a rubber particle sound absorption plate, 2-a frame, 3-a support column, 4-a lower bracket beam, 5-a lower horizontal beam, 6-an upper horizontal beam, 7-an upper fixing transverse band, 8-a lower fixing transverse band, 9-a sound absorption surface, 10-a first through groove, 11-a second through groove, 12-a rectangular bottom plate, 13-a plastic film, 14-a groove type mould frame, 15-an internal support framework and 16-a rubber particle sound absorption layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a road sound barrier to solve the problem that prior art exists, make road sound barrier quality light, it is with low costs, have porous sound mechanism and resonance sound absorption sound mechanism of inhaling, not only will give sound insulation, sound absorption effect is good moreover.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Example one
As shown in fig. 1-3, the present embodiment provides a road sound barrier, which comprises a connecting beam, a plurality of rubber particle sound-absorbing panels 1 and a plurality of supporting components arranged side by side, wherein each supporting component comprises a frame 2 and a supporting frame, the frame 2 is bent into a C shape, the supporting frame is fixedly connected with the frame 2, one rubber particle sound-absorbing panel 1 is clamped between two adjacent frames 2, the connecting beam is fixedly connected with each supporting frame, the rubber particle sound-absorbing panel 1 is used as a sound-absorbing material, the road sound barrier has light weight and low cost, has a porous sound-absorbing mechanism and a resonant sound-absorbing mechanism, under the action of the frame 2, the rubber particle sound-absorbing panel 1 is C-shaped, reflected noise is hooked by the upper and lower arcs of the rubber particle sound-absorbing panel 1, and is incident on the sound-absorbing surface of the rubber particle sound-absorbing panel 1 again and is absorbed again, and the processes of reflection-hooking-incidence-absorption are repeated, most noise is absorbed, and rubber granule acoustic baffle 1's shape has ensured that rubber granule acoustic baffle 1 has good sound absorption performance, and the acoustic material that uses at present all is better to the high frequency noise sound absorption effect more than 5000 hertz, and is relatively poor to the low frequency noise absorption effect of 20-5000 hertz, and people's most sensitive sound is the sound of 1000 plus 5000 hertz frequency, the utility model provides a rubber granule acoustic baffle 1's shape is not restricted by the acoustic material, and the noise homoenergetic to each frequency channel can be repeated and is reabsorbed, has the effect of fully absorbing each frequency channel noise. In addition, based on the characteristics of the rubber material, the road sound barrier can refract incident light waves and absorb the light waves, and the C-shaped structure has good re-absorption effect on the reflected and diffracted light waves and good light absorption effect on the road sound barrier.
In another specific embodiment of the present invention, the supporting frame includes a supporting column 3 and a lower bracket beam 4, the lower bracket beam 4 is perpendicular to the supporting column 3 and is fixedly connected to the supporting column 3, the bottom end of the frame 2 is supported on the lower bracket beam 4 and is fixedly connected to the lower bracket beam 4, the supporting column 3 is fixedly connected to the frame 2, and the connecting beam includes a lower horizontal beam 5 and an upper horizontal beam 6, the lower horizontal beam 5 is welded to each lower bracket beam 4, and the upper horizontal beam 6 is welded to each supporting column 3.
In another specific embodiment of the present invention, the utility model further comprises an upper fixing horizontal belt 7 and a lower fixing horizontal belt 8, the frame 2 is located between the upper fixing horizontal belt 7 and the upper horizontal beam 6, and the frame 2, the upper fixing horizontal belt 7 and the upper horizontal beam 6 are connected by bolts; the frame 2 is positioned between the lower fixing transverse belt 8 and the lower horizontal cross beam 5, and the frame 2, the lower fixing transverse belt 8 and the lower horizontal cross beam 5 are connected through bolts; through setting up fixed horizontal strap 7 and lower fixed horizontal strap 8, rubber granule acoustic baffle 1 is fixed firm, has effectively avoided the condition emergence that rubber granule acoustic baffle 1 deviates from between frame 2 on both sides.
In the utility model discloses another concrete embodiment, the equal welded connection of upper horizontal crossbeam 6 and each support column 3, lower horizontal crossbeam 5 and each equal welded connection of bracket crossbeam 4 down set up like this, and each supporting component firm in connection each other, and the whole steadiness of road sound barrier is good.
In another specific embodiment of the present invention, the rubber particle sound-absorbing panel 1 includes a rubber particle sound-absorbing layer 16, and the rubber particle sound-absorbing layer 16 contains the following components in parts by mass: 70 parts of rubber particles; 2 parts of pentaerythritol; 2 parts of melamine; 4 parts of ammonium polyphosphate; 6 parts of water; 16 parts of acrylic elastic emulsion.
in the utility model discloses in another concrete embodiment, rubber granule adopts the scrap tire to smash and makes, and the principal ingredients of scrap tire is rubber, and the scrap tire that china produced at present increases with 8% to 10% speed every year, produces 3 hundred million of scrap tire yearly, but the reuse rate of scrap tire is not enough 50%, and the scrap tire pollutes seriously, and the utility model discloses an adopt the scrap tire as the raw materials of rubber granule acoustic absorption layer 16, improved the utilization ratio of scrap tire greatly, and greatly reduced the cost of road sound barrier.
In the utility model discloses another concrete embodiment, rubber granule acoustic baffle 1 is the cuboid structure, and rubber granule acoustic baffle 1 still includes inside supporting framework 15, and preferably, inside supporting framework 15 adopts the steel sheet mesh to make, and rubber granule acoustic absorption layer 16 wraps up in the surface of inside supporting framework 15, and through setting up inside supporting framework 15, rubber granule acoustic baffle 1 intensity improves greatly.
In another specific embodiment of the present invention, the internal supporting frame 15 includes a rectangular bottom plate 12, and a first side plate, a second side plate, a third side plate and a fourth side plate perpendicular to the rectangular bottom plate 12, the first side plate and the second side plate are symmetrically disposed on the left and right sides of the rectangular bottom plate 12, the third side plate and the fourth side plate are symmetrically disposed on the front and back sides of the rectangular bottom plate 12, and the bottom ends of the first side plate, the second side plate, the third side plate and the fourth side plate are all fixedly connected to the bottom plate, the first side plate, the second side plate, the third side plate, the fourth side plate and the bottom plate form a groove structure, so as to achieve better strength and shape-keeping ability of the rubber particle acoustic board 1.
In the utility model discloses another concrete embodiment, the upper surface of rubber granule acoustic baffle 1 is the sound absorption surface, and the sound absorption surface is the unevenness's honeycomb pitted surface that rubber granule constitutes, so sets up, and 9 area increases in the sound absorption surface of rubber granule acoustic baffle 1, and the sound absorption effect is better.
In another specific embodiment of the present invention, the two sides of the frame 2 are respectively provided with a first through groove 10 and a second through groove 11, preferably, the frame 2 is made by machining "i" steel, the two grooves of the two ribs of the "i" steel are respectively the first through groove 10 and the second through groove 11, the first through groove 10 and the second through groove 11 can be respectively connected to two sides of a rubber particle sound-absorbing board 1, and thus, the rubber particle sound-absorbing board 1 is more firmly fixed.
The processing process of the road sound barrier mainly comprises the following steps:
step one, manufacturing rubber particle slurry: cutting and crushing the waste tire into particles with the particle size of 2mm-4mm, using the particles as rubber particles, and mixing the rubber particles according to the mass component content: 70 parts of rubber particles, 2 parts of pentaerythritol, 2 parts of melamine, 4 parts of ammonium polyphosphate, 6 parts of water and 16 parts of acrylic elastic emulsion, wherein the rubber particles are prepared and mixed to form rubber particle slurry, and the pentaerythritol, the melamine and the ammonium polyphosphate are not only the fireproof functional components of the rubber particle sound absorption plate 1, but also form adhesive of the rubber particles with the acrylic elastic emulsion;
Step two, manufacturing the rubber particle sound absorption plate 1: firstly, manufacturing a groove type mould frame 14 and an internal supporting framework 15 according to the size of a designed rubber particle sound absorption plate 1, wherein the size of a groove of the groove type mould frame 14 is the same as that of the rubber particle sound absorption plate 1, and the size of the internal supporting framework 15 is smaller than that of the groove; then, paving a plastic film 13 in the groove type mould frame 14 so as to facilitate the demoulding of the rubber particle sound absorption plate 1; then, the internal supporting framework 15 is placed in the middle of the groove, and the rectangular bottom plate 12 of the internal supporting framework 15 is in contact with the bottom surface of the mold frame; finally, pouring rubber particle slurry into the groove to enable the rubber particle slurry to wrap the outer part of the internal supporting framework 15, and demoulding after the rubber particle slurry is dried to obtain the rubber particle sound absorbing board 1;
Step three, manufacturing other parts of the road sound barrier: the frame 2, the lower bracket beam 4, the upper fixing cross band 7, the lower fixing cross band 8, the support pillar 3, the upper horizontal beam 6 and the lower horizontal beam 5 are manufactured according to the design size.
Step four, assembling the road sound barrier: firstly, installing road sound barrier columns according to a design interval on the site of a road, connecting a lower corbel beam 4, installing an upper horizontal beam 6 and a lower horizontal beam 5, secondly, sequentially installing a frame 2 and a rubber particle sound-absorbing plate 1 from one side to the other side of the road sound barrier, enabling the tangent line of the top end and the bottom end of the frame 2 to be in a horizontal state, enabling the opening of the frame 2 and the sound-absorbing surface 9 of the rubber particle sound-absorbing plate 1 to face one side of the road, installing the upper horizontal beam 6 and the lower horizontal beam 5 after the frame 2 and the rubber particle sound-absorbing plate 1 are installed, and enabling the upper horizontal beam 6 and the lower horizontal beam 5 to tightly press the rubber particle sound-absorbing plate 1 to complete the assembly of the road sound barrier.
in addition, when the rubber particle slurry is used as the sound absorption coating inside the tunnel, firstly, the closed alkali-resistant primer is coated, the rubber particle slurry is sprayed for 1-2 times, after the thickness reaches 5-10 mm, a steel wire mesh is laid, the steel wire mesh is anchored on the wall surface of the tunnel arm through a shooting nail, and then, the rubber particle sound absorption slurry is sprayed for 1-2 times and is trowelled.
It should be noted that "installing the frame 2 and the rubber particle sound-absorbing panel 1 in sequence" in installing the frame 2 and the rubber particle sound-absorbing panel 1 in sequence from one side to the other side of the road sound barrier means that the nth frame 2 and the nth rubber particle sound-absorbing panel 1 are installed in the order of the frame 2-the rubber particle sound-absorbing panel 1-the frame 2-the rubber particle sound-absorbing panel 1 … …, and finally the installation of the n +1 frames 2 is completed.
In the manufacturing process of the rubber particle sound-absorbing board 1, the end, far away from the bottom surface of the groove, of the rubber particle sound-absorbing board 1 can automatically form an uneven honeycomb pitted surface due to lack of support and deposition of slurry, and holes can be formed on the surface and inside of the rubber particle sound-absorbing board 1.
The rubber particle sound-absorbing panel 1 having the porous sound-absorbing mechanism means that:
1. The rubber particle sound absorption plate 1 is made of rubber materials, the rubber materials take tire rubber as an example, the tire rubber is mostly synthetic general rubber, the rubber is a high polymer synthesized by diene monomers, the rubber is subjected to heat crosslinking with elemental sulfur, rubber molecules are converted into a net structure from a linear structure, and in the vulcanization crosslinking process, a closed structure cavity, a cavity and a net structure are formed in the net structure in the rubber, so that the rubber has elasticity and deformability, sound energy entering the rubber generates vibration and can be diffused and propagated in a rubber medium, the diffused vibration is transmitted, the rubber medium generates tension and compression, friction is generated between the media, and the sound energy is converted into heat energy to be absorbed;
2. The rubber particle sound-absorbing panel 1 has porous sound-absorbing properties: the rubber particle sound absorption plate 1 is internally provided with a continuous open hole, air in the hole generates vibration friction with the wall of the hole due to sound energy, the sound energy is converted into heat energy, and the sound energy injected into the hole is absorbed.
The rubber particle sound-absorbing panel 1 having the resonance sound-absorbing mechanism means that: when the rubber particle sound absorption plate 1 is poured, an uneven honeycomb pitted surface is formed at one end far away from the bottom surface of the groove, and uniform holes are formed and are used as the sound absorption surface of the rubber particle sound absorption plate; the structure that the upper part of the adhesive is sparse and the lower part of the adhesive is dense is formed due to the deposition of the adhesive in the cross-linking and curing process, when the upper sparse granular pitted surface is the sound absorption surface, the lower dense surface becomes the back surface of the rubber particle sound absorption plate 1, and the adhesive in the rubber particle slurry forms a closed film layer at one end close to the bottom surface of the groove in the cross-linking and curing process, so that the noise is trapped in the body of the rubber particle sound absorption plate 1 to the maximum extent, heat energy is changed into heat energy to be dissipated, the noise cannot pass through, and the noise is discharged. When the sound absorption surface of the rubber particle sound absorption plate 1 is a honeycomb-shaped rough surface with uniform holes, the back surface is a closed elastic film, a three-dimensional connected-sheet through honeycomb hole structure is arranged between the two surfaces, the internal huge space and the elasticity of the back surface form the air spring effect of a large cavity, the air spring effect is far larger than the volume of air at the hole position of the sound absorption surface, incident sound waves excite an air column in the hole neck of the sound absorption surface to reciprocate and rub with the wall of the hole neck, partial sound energy is converted into heat energy to be lost, when the frequency of the incident sound waves is the same as the inherent frequency of the rubber particle sound absorption plate, resonance occurs, the motion of the air column is intensified, the amplitude and the vibration speed are maximized, the damping is also maximized.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. A road sound barrier, characterized by: including connecting crossbeam, a plurality of rubber granule acoustic baffle and a plurality of supporting component who sets up side by side, supporting component includes frame and support frame, the whole type that buckles of frame is the C type, the support frame with frame fixed connection, one rubber granule acoustic baffle joint in two adjacent between the frame, connect crossbeam and each the equal fixed connection of support frame.
2. The road sound barrier of claim 1, characterized in that: the support frame includes support column and lower bracket crossbeam, lower bracket crossbeam perpendicular to the support column and with support column fixed connection, the support column with lower bracket crossbeam all with frame fixed connection, it includes horizontal crossbeam and last horizontal crossbeam to connect the crossbeam, horizontal crossbeam and each down equal fixed connection of bracket crossbeam, go up horizontal crossbeam and each equal fixed connection of support column.
3. The road sound barrier of claim 2, characterized in that: the frame is located between the upper fixing transverse belt and the upper horizontal cross beam, and the frame, the upper fixing transverse belt and the upper horizontal cross beam are connected through bolts.
4. The road sound barrier of claim 2, characterized in that: the frame is located between the lower fixing transverse belt and the lower horizontal cross beam, and the frame, the lower fixing transverse belt and the lower horizontal cross beam are connected through bolts.
5. The road sound barrier of claim 1, characterized in that: the rubber particle sound absorption plate comprises a rubber particle sound absorption layer.
6. The road sound barrier of claim 1, characterized in that: the rubber particles are made of waste tires.
7. The road sound barrier of claim 5, characterized in that: the rubber particle acoustic baffle is the cuboid structure, the rubber particle acoustic baffle still includes inside support chassis, the rubber particle acoustic baffle wrap up in the surface of inside support chassis, just the rubber particle acoustic baffle adopts pours and makes.
8. The road sound barrier of claim 7, wherein: the internal supporting framework comprises a rectangular bottom plate, a first side plate, a second side plate, a third side plate and a fourth side plate, wherein the first side plate, the second side plate, the third side plate and the fourth side plate are perpendicular to the rectangular bottom plate, the first side plate and the second side plate are symmetrically arranged on the left side and the right side of the rectangular bottom plate, the third side plate and the fourth side plate are symmetrically arranged on the front side and the rear side of the rectangular bottom plate, and the bottom ends of the first side plate, the second side plate, the third side plate and the fourth side plate are fixedly connected with the bottom plate.
9. The road sound barrier of claim 7, wherein: the upper surface of the rubber particle sound absorption plate is a sound absorption surface, and the sound absorption surface is an uneven honeycomb pitted surface formed by rubber particles.
10. The road sound barrier of claim 1, characterized in that: the both sides of frame are provided with first logical groove and second respectively and lead to the groove, first lead to the groove with the second lead to the groove can joint respectively in one the both sides of rubber granule acoustic baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920069484.3U CN209760064U (en) | 2019-01-16 | 2019-01-16 | Road sound barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920069484.3U CN209760064U (en) | 2019-01-16 | 2019-01-16 | Road sound barrier |
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| Publication Number | Publication Date |
|---|---|
| CN209760064U true CN209760064U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920069484.3U Expired - Fee Related CN209760064U (en) | 2019-01-16 | 2019-01-16 | Road sound barrier |
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| CN (1) | CN209760064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537485A (en) * | 2019-01-16 | 2019-03-29 | 天津市朗威柏丽科技有限公司 | A kind of road noise barrier |
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2019
- 2019-01-16 CN CN201920069484.3U patent/CN209760064U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537485A (en) * | 2019-01-16 | 2019-03-29 | 天津市朗威柏丽科技有限公司 | A kind of road noise barrier |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |