CN211081256U - Noise reduction isolation plate for construction site - Google Patents

Abstract

The utility model relates to a construction technical field, in particular to construction site is with division board of making an uproar that falls. It includes the shell body, top surface on the shell body, lower bottom surface symmetry is equipped with U type fossil fragments, both sides edge at U type fossil fragments all is fixed with the acoustic celotex board, two acoustic celotex boards respectively with the leading flank, the trailing flank encloses into preceding seal chamber, the back seal chamber, preceding seal chamber, it has first noise damping layer all to fill in the back seal chamber, be equipped with a plurality of amortization cylinders between two acoustic celotex boards, the noise damping cylinder includes annular second sound absorption layer, annular third sound absorption layer, the fourth sound absorption layer, still be equipped with the wave acoustic celotex board, annular second sound absorption layer, be equipped with the first bloop of a plurality of radial settings on the annular third sound absorption layer respectively, the second bloop, first bloop and the crisscross setting each other of second bloop. The utility model discloses a sound-proof board and the structure that inhales sound structure interval and set up in turn can optimize and realize that the amortization is fallen and is made an uproar, absorbing purpose, and simple structure, convenient to use.

Description

Noise reduction isolation plate for construction site

Technical Field

The utility model relates to a construction technical field, in particular to construction site is with division board of making an uproar that falls.

Background

With the rapid development of national economy, environmental noise has become one of the public hazards of modern human life. As the biggest developing countries in the world, China has one of the important national policies of China for environmental protection and governance, and vibration prevention and noise reduction have become an important content of environmental protection measures. As is well known, noise not only damages eardrums of people, but also negatively affects psychology and spirit of people, so that people who move under noise for a long time are seriously harmed physiologically and psychologically, and no noise is generated in sound equipment, vehicles, mechanical equipment of factories, construction of construction sites and the like along with the development of science and technology.

In a construction site, a lot of building structures are in a building state, and because the construction site works with large-scale building equipment for a long time, the noise pollution is large, the pollution time is long, so in order to protect the safety of surrounding pedestrians, prevent the buildings from being damaged and avoid the noise and vibration from influencing the normal life of nearby residents, building constructors generally use an isolation device to enclose the unfinished buildings, isolate the building structures from surrounding pedestrians and citizens, and remove the isolation device when the construction is finished.

However, the existing building isolation plate cannot effectively isolate noise, and the damping effect is poor, so that a noise reduction isolation plate for a building construction site is urgently needed.

Patent CN 110080610 a, it discloses a foundation isolation device for building construction, it includes: the sound insulation wall comprises a shell, a first connecting block and a second connecting block, wherein the first sound absorption layer and the second sound absorption layer are sequentially and alternately filled in the sound insulation wall, the other two side faces of the sound insulation wall are respectively provided with the first connecting block and the second connecting block, a fixed connecting column is arranged at the center of the lower part of the first connecting block, a connecting hole matched with the connecting column is formed in the upper surface of the second connecting block, and the isolating device is connected with the connecting column and the connecting hole in an embedded mode.

Although above-mentioned patent has good syllable-dividing effect, and can splice a plurality of isolating device, and the junction can carry out the rotation of horizontal direction, and the flexibility is high, but it only packs first sound absorbing layer and second sound absorbing layer in turn, and does not inhale the sound hole on first sound absorbing layer and the second sound absorbing layer, so although there is certain sound absorbing effect, sound absorbing effect is not good, and can not realize reducing the effect of vibrations.

Disclosure of Invention

Not enough to prior art exists, the utility model aims to solve the technical problem that, a simple structure is provided, convenient to use, and the shock attenuation is effectual, the noise cancelling effect is good, long service life's building construction scene is with making an uproar division board that falls.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a noise reduction isolation board for a building construction site comprises a shell body of a cuboid cavity structure, wherein the shell body is composed of an upper top surface, a lower bottom surface, a left side surface, a right side surface, a front side surface and a rear side surface, U-shaped keels are symmetrically arranged on the upper top surface and the lower bottom surface of the shell body, sound insulation boards are fixed on the edges of two sides of each U-shaped keel, the two sound insulation boards respectively and the front side surface and the rear side surface form a front sealing cavity and a rear sealing cavity in a surrounding mode, a first sound absorption layer used for absorbing noise of the building construction site is filled in each of the front sealing cavity and the rear sealing cavity, a plurality of sound absorption columns are arranged between the two sound insulation boards, each sound absorption column comprises an annular second sound absorption layer, an annular third sound absorption layer arranged on the inner side of the annular second sound absorption layer and a fourth sound absorption layer arranged in the cavity formed by the annular third sound absorption layer, a wavy sound insulation board is further arranged between the two sound absorption columns, and a plurality of, the annular second sound absorption layer and the annular third sound absorption layer are respectively provided with a plurality of first silencing holes and second silencing holes which are radially arranged, and the first silencing holes and the second silencing holes are arranged in a staggered mode.

The noise reduction isolation plate for the building construction site is characterized in that the fourth sound absorption layer is a cylinder, a plurality of third sound absorption holes are axially formed in the cylinder, rubber layers are arranged on the inner walls of the left side face and the right side face, and the longitudinal sections of the first sound absorption holes and the second sound absorption holes are trapezoidal.

Foretell building construction scene is with division board of making an uproar that falls, first sound absorbing layer sets up on the inner wall of shell body leading flank, trailing flank, the material of U type fossil fragments is U type channel-section steel, and shell body's last top surface, lower bottom surface and U type fossil fragments pass through the welded mode and are connected, the amortization cylinder is the square cylinder, a side and the acoustic celotex board in close contact with setting of amortization cylinder.

Foretell construction scene is with division board of making an uproar that falls still includes the left connecting block that is equipped with on the lateral wall of left surface to and the right connecting block that is equipped with on the lateral wall of right surface, be equipped with the jack on the connecting block of a left side, be equipped with the inserted bar with jack adaptation plug-in connection on the connecting block of the right side.

The utility model discloses construction scene is with the beneficial effect of the division board of making an uproar of falling is: the utility model discloses a structure that acoustic celotex board and sound absorbing structure interval set up alternately can optimize and realize amortization and noise reduction, the absorbing purpose, wherein, the first bloop and the second bloop of annular second sound absorbing layer and annular third sound absorbing layer in the amortization cylinder set up with crisscross each other, can make the sound that gets into the second bloop not spread out from the first bloop, sound transmits each other, reflects, collides between the third bloop on the fourth sound absorbing layer, make the energy of sound reduce, thereby reach the purpose of making an uproar; the first sound absorption layer is arranged to be matched with the sound absorption column body and the wave sound insulation plate, so that the purpose of optimal noise reduction can be further achieved; meanwhile, the rubber layer and the sound absorption cavity can absorb vibration generated during building construction, so that the vibration is reduced, the sound is transmitted, and the isolation plate is protected. The utility model discloses simple structure, convenient to use, amortization, shock attenuation are effectual.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view A-A;

FIG. 3 is an enlarged view of section C;

FIG. 4 is a schematic sectional view of the structure of B-B;

fig. 5 is a schematic structural view of a sound-deadening cylinder.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments;

as shown in fig. 1, 2, 3, 4, and 5, a noise reduction isolation board for a building construction site comprises a housing body 1 with a cuboid-shaped cavity structure composed of an upper top surface, a lower bottom surface, a left side surface, a right side surface, a front side surface, and a rear side surface, wherein a rubber layer 16 is arranged on the inner wall of the left side surface and the inner wall of the right side surface, the rubber layer 16 can be wave-shaped, or a plurality of through holes are arranged on the rubber layer to achieve the effects of absorbing noise and damping, in this embodiment, the rubber layer 16 is wave-shaped.

The upper top surface and the lower bottom surface of the shell body 1 are symmetrically provided with the U-shaped keels 2, the upper top surface and the lower bottom surface of the shell body 1 are connected with the U-shaped keels in a welding mode, and the U-shaped keels 2 are made of U-shaped channel steel, are corrosion-resistant and can prolong the service life. The utility model discloses a building construction noise sound absorption device, including shell body 1, U type fossil fragments 2, two sides edges all are fixed with acoustic celotex board 3 at U type fossil fragments 2, two acoustic celotex boards 3 enclose into preceding sealed chamber 4, rear seal chamber 5 with the leading flank respectively, rear seal chamber 5 in the preceding sealed chamber 4, the rear seal chamber 5 is all filled with the first sound absorbing layer 6 that is used for absorbing the construction site noise, first sound absorbing layer 6 sets up on the inner wall of shell body 1 leading flank, rear flank, first sound absorbing layer 6 is materials such as wavy slag wool, felt, first sound absorbing layer 6 is wavy slag wool in this embodiment. The first wavy sound absorption layer 6 forms a closed cavity with the upper top surface and the lower bottom surface in the front sealing cavity 4 and the rear sealing cavity 5, so that the transmission of the vibration force can be blocked, and the damping effect is improved.

In order to achieve the purpose of optimal sound attenuation and shock absorption effects, a plurality of sound attenuation cylinders 7 are arranged between the two sound insulation plates 3, each sound attenuation cylinder 7 comprises an annular second sound absorption layer 8, an annular third sound absorption layer 9 arranged on the inner side of the annular second sound absorption layer 8, and a fourth sound absorption layer 10 arranged in a cavity enclosed by the annular third sound absorption layers 9, the fourth sound absorption layer 10 is a cylinder, and a plurality of third sound attenuation holes 15 are axially arranged on the cylinder. Amortization cylinder 7 is the square cylinder, and a side of amortization cylinder 7 sets up with acoustic celotex board 3 in close contact with to the setting that reinforcing amortization cylinder 7 can be firm. The utility model discloses still be equipped with wave acoustic celotex board 11 between two amortization cylinders 7, form a plurality of sound-absorbing cavities 12 between wave acoustic celotex board 11 and the amortization cylinder 7, sound-absorbing cavity 12 set up and further strengthened the utility model discloses an amortization, shock attenuation effect.

A plurality of first silencing holes 13 and second silencing holes 14 which are radially arranged are respectively arranged on the annular second sound absorbing layer 8 and the annular third sound absorbing layer 9, the first silencing holes 13 and the second silencing holes 14 are arranged in a mutually staggered manner, wherein the longitudinal sections of the first silencing holes 13 and the second silencing holes 14 are both in a trapezoidal arrangement, namely the diameters of the first silencing holes 13 and the second silencing holes 14 are gradually increased from outside to inside along the annular second sound absorbing layer 8 and the annular third sound absorbing layer 9 respectively, noise enters the fourth sound absorbing layer 10 through the first silencing holes 13, the second silencing holes 14 and the third silencing holes 15 and is diffused in the inner cavities of the first silencing holes 13 and the second silencing holes 14, and the diffused reflected waves are easy to generate resonance cancellation due to the inner horn shapes of the first silencing holes 13 and the second silencing holes 14, so that the silencing effect is good and more excellent, and part of the sound waves enter the fourth sound absorbing layer 10, the fourth sound absorbing layer 10 is made of a honeycomb-shaped sponge cylinder and is provided with a plurality of third sound absorbing holes 15, and sound waves are absorbed by the third sound absorbing holes 15 when being transmitted in the fourth sound absorbing layer 10, so that the complete sound absorbing and silencing effect is achieved. The first muffling holes 13 and the second muffling holes 14 may be the same in size or different in size, and in this embodiment, the first muffling holes 13 and the second muffling holes 14 are the same in size.

The utility model discloses still include the left connecting block 17 that is equipped with on the lateral wall of left surface to and the right connecting block 18 that is equipped with on the lateral wall of right surface, be equipped with jack 19 on the left connecting block 17, be equipped with on the right connecting block 18 with the inserted bar 20 of 19 adaptation plug-in connections of jack, when the reality is used, with the use of prolonging of pegging graft each other of a plurality of division boards, it is swift to peg graft and dismantle, and convenient to use has saved the engineering time.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (4)

1. The utility model provides a construction scene is with division board of making an uproar that falls which characterized in that: the noise reduction device comprises a shell body with a cuboid cavity structure, wherein the shell body is composed of an upper top surface, a lower bottom surface, a left side surface, a right side surface, a front side surface and a rear side surface, U-shaped keels are symmetrically arranged on the upper top surface and the lower bottom surface of the shell body, sound insulation boards are fixed on the edges of the two sides of each U-shaped keel, the two sound insulation boards respectively and the front side surface and the rear side surface form a front sealing cavity and a rear sealing cavity in a surrounding mode, a first sound absorption layer used for absorbing noise in a building construction site is filled in each of the front sealing cavity and the rear sealing cavity, a plurality of noise reduction columns are arranged between the two sound insulation boards, each noise reduction column comprises an annular second sound absorption layer, an annular third sound absorption layer arranged on the inner side of the annular second sound absorption layer and a fourth sound absorption layer arranged in a cavity formed by the annular third sound absorption layer, a wave sound insulation board is further arranged between the two sound absorption columns, the annular second sound absorption layer and the annular third sound absorption layer are respectively provided with a plurality of first silencing holes and second silencing holes which are radially arranged, and the first silencing holes and the second silencing holes are arranged in a staggered mode.

2. The noise reduction insulation panel for a construction site according to claim 1, wherein: the fourth sound absorption layer is a cylinder, a plurality of third sound absorption holes are axially formed in the cylinder, rubber layers are arranged on the inner walls of the left side face and the right side face, and the longitudinal sections of the first sound absorption holes and the second sound absorption holes are trapezoidal.

3. The noise reduction insulation panel for a construction site according to claim 1, wherein: first sound absorption layer sets up on the inner wall of shell body leading flank, trailing flank, the material of U type fossil fragments is U type channel-section steel, and shell body's last top surface, lower bottom surface are connected through the welded mode with U type fossil fragments, the amortization cylinder is the square cylinder, a side and the acoustic celotex board in close contact with of amortization cylinder set up.

4. The noise reduction insulation panel for a construction site according to claim 1, wherein: the left connecting block that is equipped with on the lateral wall of left surface still is included to and the right connecting block that is equipped with on the lateral wall of right flank, be equipped with the jack on the connecting block of a left side, be equipped with the inserted bar with jack adaptation plug connection on the connecting block of the right side.

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