CN211395421U

CN211395421U - Sound barrier

Info

Publication number: CN211395421U
Application number: CN201922055645.6U
Authority: CN
Inventors: 孙福武
Original assignee: Hengshui Hongtong Transportation Facilities Co ltd
Current assignee: Hengshui Hongtong Transportation Facilities Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-09-01
Anticipated expiration: 2029-11-26

Abstract

The utility model belongs to a product of making an uproar falls in giving sound insulation discloses a sound barrier, the sound barrier is by the interior galvanized steel sheet layer, foaming aluminium lamination, the cotton rock stratum of glass, sound insulation felt layer, the outer galvanized steel sheet layer laminating shaping that sets gradually from inside to outside, wherein, the cotton rock stratum of glass is wrapped up by oxford. The utility model discloses utilize the sheet metal perforation technique to add foamed aluminum material, greatly increased sound absorbing area, improved the absorptivity to the noise, then through double-deck sound-proof material such as soundproof cotton and deadening felt with noise reduction to minimum. The soundproof cotton in the screen body is wrapped by the waterproof and weather-proof oxford fabric, so that the damp-proof and waterproof performance is achieved, and the service life of the product is prolonged.

Description

Sound barrier

Technical Field

The utility model relates to a product of making an uproar, in particular to sound barrier falls gives sound insulation.

Background

The sound barrier is mainly used for sound insulation and noise reduction of highways, expressways, overhead composite roads and other noise sources. The sound insulation method is divided into a reflection type sound barrier for pure sound insulation and a composite type sound barrier for combining sound absorption and sound insulation, and the latter is a more effective sound insulation method. Refers to a wall structure provided beside railways and highways to reduce the influence of driving noise on nearby residents. Sound-insulating walls are also known as sound barriers. The insertion of a facility between the source and the receiver, called a sound barrier, provides a significant additional attenuation of the sound wave propagation, thus attenuating the noise contribution in the area where the receiver is located. The most used types of sound barriers are classified into traffic sound barriers, equipment noise attenuation sound barriers, industrial plant sound barriers, highways and expressways.

At present, a sound barrier or a similar sound insulation and noise reduction device is usually formed by laminating a steel plate, a template, a plastic plate and the like, but the sound insulation and noise reduction performance is poor, the performance of the material inside the sound barrier or the similar sound insulation and noise reduction device is weakened due to water inflow or other corrosive liquid after the sound barrier or the similar sound insulation and noise reduction device is used for a long time, and the service life of the sound barrier or the.

SUMMERY OF THE UTILITY MODEL

To prior art's defect, the utility model aims at providing a sound barrier that gives sound insulation and fall the noise performance good, and life is longer.

The utility model adopts the technical scheme as follows:

the utility model provides a sound barrier, sound barrier is by the laminating shaping of interior galvanized steel layer, foaming aluminium lamination, glass wool stratum, sound deadening felt layer, the outer galvanized steel layer that sets gradually from inside to outside, for example hot briquetting, wherein, glass wool stratum is wrapped up by oxford.

Furthermore, a plurality of small sound-absorbing through holes are formed in the inner galvanized steel sheet layer.

Further, the foamed aluminum is honeycomb-shaped.

Further, the thickness of the inner galvanized steel sheet layer is 1-1.4 mm, the thickness of the outer galvanized steel sheet layer is 0.8-1.2 mm, and the thickness of the foamed aluminum layer is 4-6 mm.

Further, the thickness of the glass wool rock layer is 40-60 mm, the thickness of the oxford fabric is 200-400 um, and the thickness of the sound-proof felt layer is 1-3 mm.

Further, the thickness of the inner galvanized steel sheet layer is 1.2mm, the thickness of the outer galvanized steel sheet layer is 1mm, and the thickness of the foamed aluminum layer is 5 mm.

Further, glass cotton rock layer thickness is 50mm, oxford thickness is 300um, sound insulation felt layer thickness is 2 mm.

Further, the sound absorbing through holes are communicated with each other.

Furthermore, the sound-absorbing through hole has a large outer opening and a small inner opening, and is formed in a horn shape.

Furthermore, the surfaces of the inner galvanized steel sheet layer and the outer galvanized steel sheet layer are sprayed with plastics.

Further, the sound-absorbing through holes are round, rectangular or other polygonal shapes.

Compared with the prior art, the utility model discloses a sound barrier, by galvanized steel sheet, foamed aluminum, soundproof cotton rock, materials such as deadening felt constitute, utilize metal steel sheet perforation technique to add foamed aluminum material, greatly increased sound absorbing area, improved the absorptivity to the noise, then through double-deck sound insulation material such as soundproof cotton and deadening felt with noise reduction to minimum. The soundproof cotton in the screen body is wrapped by the waterproof and weather-proof oxford fabric, so that the damp-proof and waterproof performance is achieved, and the service life of the product is prolonged.

Drawings

Fig. 1 is a schematic cross-sectional view of a sound barrier according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of a sound barrier according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, but are not intended to limit the present invention.

Referring to fig. 1 and fig. 2, the embodiment of the utility model provides a sound barrier, both sides such as the early road of sound barrier mountable, bridge, tunnel, railway, perhaps set up in indoor place, but this sound barrier is by the interior galvanized steel sheet layer 1 that sets gradually from inside to outside, foaming aluminium lamination 2, glass wool stratum 3, sound-proof felt layer 5, the shaping of laminating of outer galvanized steel sheet layer 6, but for example hot briquetting, wherein, glass wool stratum 3 is wrapped up by oxford 4, and at least the upper and lower two sides of cotton stratum 3 are blocked by oxford 4.

The utility model discloses a screen body comprises interior galvanized steel sheet layer 1 and outer galvanized steel sheet layer 6 that are located the top layer, in addition, interior galvanized steel sheet layer 1 and outer galvanized steel sheet layer 6 surface have all carried out the plastic-blasting and have handled, interior galvanized steel sheet layer 1 thickness is 1 ~ 1.4mm, preferably 1.2mm, the thickness of outer galvanized steel sheet layer 6 is 0.8 ~ 1.2mm, preferably 1mm, because need set up on interior galvanized steel sheet layer 1 and inhale sound hole 11, so thickness is a little bigger, the zinc-plating mainly plays the corrosion protection. The screen body part adopts a galvanized steel plate with certain thickness and difficult rustiness and corrosion resistance, and a space is completely sealed, so that the internal sound absorption and insulation material can be protected from being damaged. In fact, the screen body can adopt the processing design of bending, wherein, has seted up a plurality of little sound holes of inhaling on the galvanized steel sheet layer 1, inhales the shape of sound perforation 11 and can be circular, square, or other polygons, sets up and inhales the sound hole mainly in order to enlarge the area of noise absorption, more preferably, inhales the outside bore of sound perforation 11 and is greater than inside bore, similar loudspeaker form for enlarge noise absorption area and can better absorption entering. And the sound absorbing holes can be further communicated with each other in a penetrating way, so that noise pollution is reduced after the noise is reflected, diffracted and transmitted for multiple times in the transmission process.

What hug closely with interior galvanized steel sheet layer 1 is foaming aluminium lamination 2, and wherein, the thickness that sets up foaming aluminium lamination 2 is 4 ~ 6mm, preferably 5mm, and foaming aluminium lamination 2 is honeycomb structure. The foamed aluminum material has small density, is honeycomb-shaped, is a light composite structure, reduces weight by more than 50 percent and has the density of only 0.2-1.0g/cm³Has lower density than water and 5 times of rigidity of common steel, the foamed aluminum is one of the materials with ideal energy absorption and anti-collision effects in the current industrial materials, and the energy absorption density reaches 4-20J/cm³The foamed aluminum is a sound-absorbing and sound-insulating material with good comprehensive performance, has good high-temperature resistance and flame retardance while keeping a high noise reduction coefficient, can still keep good acoustic characteristics in a high-humidity environment, can keep noise reduction capability under various weather conditions when being applied to an outdoor sound-absorbing screen, and has a durable service life of 50-70 years. The honeycomb-shaped foamed aluminum has the advantages that the inner part of the honeycomb-shaped foamed aluminum is provided with the communicated small open holes, the small open holes are subjected to air molecular friction and viscous resistance, and fine fibers are subjected to mechanical vibration, so that sound energy is converted into heat energy, the sound absorption area can be effectively enlarged, the noise absorption rate is improved to the maximum, the energy absorption buffer is improved, and the excellent performances such as flame retardance, explosion resistance, moisture resistance and the like are improved.

The sound absorption holes and the hair are perforated in the screen bodySince it is necessary to remove noise after the sound is absorbed into the alumite layer 2, 80kg/m is used³The glass rock wool is placed in a screen body, in order to prolong the service life of the screen body, a rock wool layer 3 is specially packaged by a waterproof and weather-proof oxford cloth 4, because the inner galvanized steel plate layer 1 on the surface of the screen body is perforated, and the foamed aluminum layer 2 is of a honeycomb structure, the rock wool layer 3 is difficult to damage by wind and rain, the service life of the sound barrier can be prolonged, and the later maintenance cost is reduced. In this embodiment, the thickness of the glass wool rock layer 3 is 40-60 mm, preferably 50mm, and the thickness of the oxford 4 is 200-400 um, preferably 300 um. The glass rock wool is made up by using quartz sand, feldspar, sodium silicate and boric acid as main raw materials, and adopting the processes of high-temp. melting to obtain fibre cotton-like material whose fibre thickness is less than 6 micrometers and high-temp. forming so as to obtain the invented product with various shapes and specifications. The flame-retardant and corrosion-resistant composite material has the advantages of flame retardance, no toxicity, corrosion resistance, small volume weight, low heat conductivity coefficient, strong chemical stability, low moisture absorption rate, good hydrophobicity and the like. It should be understood by those skilled in the art that the present invention uses oxford, but other waterproof cloth with waterproof property can be used for protection, and is not limited herein.

The sound-proof felt 5 with the thickness of 2mm is tightly attached to the back of the glass wool rock layer 3, so that the sucked noise can be more effectively processed, the noise can not be transmitted out of the screen body, and the good effect of sound insulation and noise reduction is achieved. The sound-proof felt is a high-density coiled material with certain flexibility and made of rubber, high-molecular material and the like as main raw materials.

It should be understood by those skilled in the art that in the present embodiment, the thicknesses of the inner galvanized steel sheet layer 1, the foamed aluminum layer 2, the glass wool layer 3, the sound-deadening felt layer 5, and the outer galvanized steel sheet layer 6 are determined according to the noise reduction degree, and the higher the decibel to be reduced, the relatively larger the thickness, and the height of the sound barrier can be increased appropriately.

Although the present invention has been described in connection with preferred embodiments, it will be understood by those skilled in the art that the methods and systems of the present invention are not limited to the embodiments described in the detailed description, and that various modifications, additions and substitutions are possible, without departing from the spirit and scope of the invention as defined in the accompanying claims.

Claims

1. The sound barrier is characterized in that the sound barrier is formed by sequentially attaching an inner galvanized steel sheet layer, a foamed aluminum layer, a glass wool stratum, a sound insulation felt layer and an outer galvanized steel sheet layer from inside to outside, wherein the glass wool stratum is wrapped by oxford fabric.

2. The sound barrier of claim 1, wherein said inner galvanized steel sheet layer is perforated with a plurality of small sound absorbing perforations.

3. The sound barrier of claim 1 or 2, wherein said foamed aluminum is honeycomb-shaped.

4. The sound barrier of claim 1, wherein said inner galvanized steel sheet layer has a thickness of 1 to 1.4mm, said outer galvanized steel sheet layer has a thickness of 0.8 to 1.2mm, and said foamed aluminum layer has a thickness of 4 to 6 mm.

5. The sound barrier of claim 4, wherein said glass wool layer has a thickness of 40 to 60mm, said oxford fabric has a thickness of 200 to 400um, and said sound-deadening felt layer has a thickness of 1 to 3 mm.

6. The sound barrier of claim 4, wherein said inner galvanized steel sheet layer has a thickness of 1.2mm, said outer galvanized steel sheet layer has a thickness of 1mm, and said foamed aluminum layer has a thickness of 5 mm.

7. The sound barrier of claim 5, wherein said glass wool layer is 50mm thick, said oxford fabric is 300um thick, and said sound-deadening felt layer is 2mm thick.

8. The sound barrier of claim 1, wherein said inner and outer galvanized steel sheet layers are surface spray molded.

9. The sound barrier of claim 2, wherein said sound absorbing perforations are circular or rectangular.