KR200376033Y1 - A noise suppresser - Google Patents

Abstract

The present invention relates to a soundproofing material, which is made of a first soundproofing material having an effect of preventing noise, and a soundproof plate in which at least one soundproof hole is formed recessed; A cover plate coupled to an upper portion of the soundproof plate to block the soundproof hole; It relates to a sound-proof material, characterized in that it comprises a second sound-proof material is filled in the soundproof hole of the soundproof plate, and has an effect of preventing noise.

Accordingly, it is possible to double the effect of preventing the noise between floors, and the construction is easy by providing a lightweight and assembled noise prevention material. In addition, since the noise prevention material can be recycled without additional pollution during disposal, it is an environmentally friendly product that can prevent environmental destruction, and can reduce costs.

Description

Noise prevention material {A NOISE SUPPRESSER}

The present invention relates to an anti-noise material, and more particularly, to effectively sound the interlayer noise, to be light in weight and easy to construct, and to be made of a recyclable material without discharging harmful substances to the human body at the time of disposal. It relates to a noise preventing material.

Only 20 years ago, the single-family homes were the main form of housing in Korea. In the case of single-family homes, at most two or three households lived in one house, the noise was not severe and they lived with mutual understanding among neighbors. As quality improves, there is an increasing demand for a pleasant living environment and the maintenance of personal privacy.

On the other hand, floor impact sounds are generated between floors of multi-family houses due to changes in the construction structure such as steel frame input and slab thickness reduction due to high-rise housing, and residents' dissatisfaction with such floor impact noise is increasing. . Here, the floor impact sound refers to the noise transmitted from the floor by the impact source, such as walking or falling objects, through the interlayer solid medium such as the floor or the pillar. In general, the buildings of apartments or apartment houses are composed of upper and lower floors, bounded by concrete slabs, and the impact sound generated by hitting the upper floor surface impacts the floor concrete slab through the finishing material layer of the floor, the boiler pipe layer, and the bubble concrete layer. Is passed. The floor impact sound is classified into a light impact sound generated by walking or a light object drop, and a heavy impact sound generated by a child running, etc., and a person living in the lower floor by the floor impact sound receives stress due to noise.

The fundamental solution to reducing these floor shocks is to make no noise, but it is almost impossible in real life, and by using noise-proofing or sound-proofing materials in the construction of houses, the floor impact sound is transmitted in the process of transmitting the impact sound to the concrete slab. It is distributed and absorbed to prevent noise transfer between layers. On the other hand, in recent years, quarrels between residents have frequently occurred in apartments and multi-purpose buildings, such as civil complaints caused by floor shocks. The minimum sound impact standard is 58㏈ and it is regulated to meet the minimum weight impact sound standard of 50㏈.

According to the certification standard of the Ministry of Construction and Transportation, the noise prevention material can be certified only if it meets the following environmental and quality standards.

As an environmental standard, first, the use rate of waste materials in the product should be over 40% in relation to resource consumption in the manufacturing process, where waste utilization rate refers to the weight percentage of waste input in the corresponding raw materials used as products. Second, materials that could be biodegraded during the operation of the building should not be used as raw materials for the product. Third, cadmium, lead, copper, arsenic, mercury, hexavalent chromium, cyanide, organic phosphorus, Trichloroethylene and ketrachloroethylene should each be discharged below a predetermined threshold. In other words, the recycling of waste materials is used, but it is regulated to produce eco-friendly noise prevention materials that are not biodegradable and have less emission of toxic substances at the time of disposal.

In the quality-related standard, the criteria are set for the dynamic modulus and loss factor per unit area of the product in relation to the noise in the use stage. Here, the loss factor is defined as the ratio of the energy lost during the same period to the maximum strain energy that can be stored for one period in a system. According to the quality-related standards, the dynamic modulus should satisfy 10 to 30 (MN / m 3) per unit area and the loss coefficient to 0.1 to 0.4. In addition, the criteria for absorption of product, dimensional change after heating, dynamic elasticity coefficient and loss coefficient value change per unit area are 4g / 100㎠ or less, and dimensional change after heating is within 5%, and dynamic elasticity coefficient and loss per unit area. Changes in the value of the modulus shall be within 20%.

On the other hand, look at some of the ondol structure of a house having a structure for preventing noise as follows. The most common ondol structure is to form a sound insulation layer by mixing lightweight foam concrete alone or by mixing sand and styropol particles on a foundation slab, arranging a heating hot water pipe thereon, and then placing a mortar finishing layer composed of sand and cement. to be. However, such an ondol structure has a disadvantage in that the sound insulation and thermal insulation performance of the light-impact foamed concrete used for the sound insulation layer is greatly reduced, and cracks occur during the concrete curing process after construction.

Another ondol structure includes a case in which a sound insulation layer made of styrofoam and a gravel crushed layer, a heating hot water pipe for heating, and a mortar finishing layer are sequentially stacked on a foundation slab. In the case of the ondol structure, although the thickness of the sound insulation layer is changed, it is not sufficient in terms of the performance against the floor impact sound, and although the hole is vertically formed in the styrofoam and mortar pillars are installed there, the sound insulation is also poor in most constructions. The company is avoiding its use.

Recently, an ondol structure has been proposed in which a rubber sheet or a rubber crushed material is installed on a foundation slab and a lightweight foam concrete is poured to form a sound insulation layer. However, such an ondol structure is not only very satisfactory in terms of sound insulation performance, but also has a construction difficulty such as adding a work of assembling or taping the rubber sheet one by one, and pouring lightweight foam concrete under the rubber sheet during pouring.

In addition to these methods, there is a method to increase the stiffness of the building floor as a countermeasure against heavy impact sound, but thickening the concrete slab increases the self-weight of the building, so it is not realistic to reduce the weight due to the high-rise of the building, and supports the slab as a small beam. It is also difficult to do.

Accordingly, there is a need to develop a noise preventing material that is installed between the slab and lightweight foam concrete to effectively sound insulation between floors after the completion of the building, and to prevent cracks and dripping during the casting of lightweight concrete. In addition, it is necessary to develop a noise prevention material that is light in weight, easy to install, and can be made of recyclable materials without discharging harmful substances to the human body when disposing in accordance with the Ministry of Construction and Transportation.

Accordingly, an object of the present invention is to provide a noise prevention material that can effectively prevent the noise between layers and prevent cracking and dropping when pouring lightweight concrete while effectively sounding interlayer noise.

Another object of the present invention is to provide a noise prevention material that is light in weight and easy to construct, and at the same time can be made of recyclable materials without discharging harmful substances to the human body at the time of disposal.

The construction of the present invention for achieving the above object is made of a first soundproofing material having an effect of preventing noise, and a soundproof plate in which at least one soundproof hole is formed recessed; Filled in the soundproof hole of the soundproof plate, characterized in that it comprises a second soundproofing material having an effect of preventing noise.

The cover plate may further include a cover plate coupled to an upper portion of the soundproof plate to block the soundproof hole, and the cover plate may be made of the same first soundproof material as the soundproof plate.

It may further include a blocking film coupled between the sound insulation plate and the cover plate to prevent the second soundproof material filled in the soundproof hole, the blocking film, at least one of a nonwoven fabric, OPP tape, various films, paper, cloth It is preferable to form one.

The first soundproofing material may be at least one of EVA, EPS, PETG, PE, PSP, PP, rubber plate, urethane.

The second soundproofing material may be pulverized at least one of sand, soil, loess, vermiculite, PP particles, EPS particles, jade powder, stone powder, waste tires, sawdust, cork.

It is preferable that the thickness of the said sound insulation board is 12-30 mm, and the said cover board is 6-20 mm in thickness.

The sound insulation hole may be formed in a cylindrical shape recessed to a predetermined depth from the plate surface of the sound insulation plate, or may have a polygonal cross section thereof.

The sound insulation hole is formed by recessing a predetermined depth from the plate surface of the sound insulation plate, and the width thereof may be narrowed toward one side.

On the other hand, the above object, according to another embodiment of the present invention, is made of a first soundproofing material having an effect of preventing noise, at least one soundproof plate is formed with at least one soundproof hole; A cover plate made of the first soundproof material and coupled to an upper portion of the soundproof plate to block the soundproof hole; It can also be achieved by a noise preventing material, characterized in that it is filled in the soundproof hole of the soundproof plate, and comprising a second soundproofing material having a noise preventing effect.

On the other hand, the object is, according to another field of the present invention, at least one soundproof plate is made of a first soundproofing material having an effect of preventing noise, the at least one soundproof hole is formed recessed; A cover plate made of the first soundproof material and coupled to an upper portion of the soundproof plate to block the soundproof hole; A second soundproofing material filled in the soundproof hole of the soundproofing plate and having an effect of preventing noise; It can also be achieved by a noise preventing material, characterized in that it comprises a blocking film coupled between the soundproof plate and the cover plate to prevent the second soundproof material filled in the soundproof hole.

On the other hand, according to another embodiment of the present invention, the object of the present invention, the upper and lower soundproof plate of the plate made of a first soundproofing material having a noise preventing effect; An intermediate soundproof plate disposed between the upper soundproof plate and the lower soundproof plate and having at least one soundproof hole formed therethrough; It can also be achieved by the sound-proof material, characterized in that it is filled in the sound-proof hole, comprising a second sound-proof material having a noise preventing effect.

Here, the first soundproofing material may be at least one of EVA, EPS, PETG, PE, PSP, PP, rubber plate, urethane, and preferably, EPS.

The second soundproofing material may be crushed at least one of sand, soil, loess, vermiculite, PP particles, EPS particles, jade powder, stone powder, waste tires, sawdust, cork, among which the second soundproofing material is sand Is preferably.

Preferably, the second soundproofing material is filled in the soundproof hole by a predetermined ratio or more.

It is preferable that the upper and lower soundproofing plates have a thickness of 8 to 15 mm.

It is preferable that the said intermediate sound insulation board is 8-12 mm in thickness.

The soundproof hole may be one of a cylindrical shape and a polygonal cylindrical shape penetrating the middle soundproof plate, and the soundproof hole penetrates the middle soundproof plate and preferably becomes narrower toward one side.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of the noise suppression material according to the first embodiment of the present invention, Figure 2 is a cross-sectional view of the noise suppression material of FIG.

The noise preventing material 1 includes a soundproof plate 10 having a plurality of soundproof holes 15, a cover plate 20 coupled to an upper portion of the soundproof plate 10, a soundproof plate 10 and a cover plate 20. It is disposed between the blocking film 30 to block the sound insulation hole (15). The soundproof plate 10 and the cover plate 20 are formed of a first soundproofing material having soundproofing and sound absorption effects to prevent noise, and the soundproofing hole 15 of the soundproofing plate 10 is formed of a material different from the first soundproofing material. However, the second sound insulating material 40 having sound insulation and sound absorption effects is filled. Here, the soundproof plate 10 is formed to a thickness of 14 to 30mm, the cover plate 20 is formed to a thickness of 6 to 20mm, preferably the soundproof plate 10 to a thickness of 16 to 27mm, the cover plate 20 ) Is formed to a thickness of 8 to 15 mm.

On the other hand, the first sound insulation material used for the production of the sound insulation board 10 and the cover plate 20 includes EVA, EPS, PETG, PE, PSP, PP, rubber plate, urethane and the like. Here, EVA (Ethylene Vinyl Acetate Copolymer) is a copolymer resin of ethylene and vinyl acetate developed by Hanwha Chemical for the first time in Korea in 1986, and has excellent transparency, flexibility, low temperature brittleness, etc. It is used as a raw material resin such as extrusion coating, and has attracted attention as a substitute material for polyvinyl chloride (PVC) due to its excellent ductility.

EPS is a polystyrene foam, generally known under the trade names Styrofoam or Styropol, and is most widely used as a material for the noise suppression material (1). Foamed polystyrene is a foamed product in which hydrocarbon gas, such as pentane or butane, is injected into a polystyrene resin and then inflated with steam, and 98% of the volume is air and the remaining 2% is a resin. Styrofoam is a styrene polymer or copolymer containing a blowing agent and is supplied in the form of small beads having a diameter of 0.2 mm to 0.3 mm or cylindrical pellets having a length of about 2.5 mm and a diameter of about 0.6 mm depending on the type. do. These foamed polystyrenes do not use freon gas, which causes ozone depletion, reduce global warming, greenhouse effect, and gas emissions that cause acid rain, and do not contaminate groundwater because methane is not generated when buried in the ground. Even if burned, it only emits water and carbon dioxide, so it does not generate harmful gases.

Polyethylene Terephthalate Glycol (PETG) is a plastic foam material mainly used for merchandise showcases and indoor transparent walls. Until now, PS, PP, PVC, and PU have been used a lot, but PS and PVC are regulated due to environmental hormone issues. Accordingly, polyesters, which are free of environmental hormone-like substances in the polymer, are not dangerous in the manufacturing process and have no problem of incineration, have been spotlighted.

There are two types of polyethylene (PE), LDPE (low density polyethylene) and HDPE (high density polyethylene), both of which are mainly used in the manufacture of films and bottles. HDPE is more robust, and polyethylene is suitable for use with frozen foods.

PSP (Polystyrene Paper) is a plastic resin that is used in various fields such as coating fabric, printing lamination fabric, board fabric, fabric for construction materials, fabric for industrial packaging, color fabric, and tray fabric. It is mainly used for the manufacture of insulation materials.

PP (polypropylene) is most used among plastic resins and can be extruded, blow molded, injection molded, compressed, and vacuum molded. In addition, it can be made of fibers, films or various colors or transparent foam, mainly used in the form of a film such as wrapping paper. PP is more flexible than PE, and most plastic boxes are made of polypropylene.

All these various materials can be used for the production of the soundproof plate 10 and the cover plate 20, of which is most preferably made of styrofoam. This is because Styrofoam has the following characteristics in terms of insulation, processing, flame retardancy, water resistance, and sound insulation as building materials. First, since styrofoam has a very low thermal conductivity, the effect of blocking external or internal heat is great, so it is excellent in cold weather. And it can be cut as desired with knife, saw, heating wire, etc., and it is easy to attach and fix with adhesive or nail. In addition, it does not burn well and can reduce the risk of fire. Since it is formed as an independent airtight bubble, the amount of absorption is extremely low even if it is put in water for a long time as well as the passage of moisture. Finally, since it blocks noise from the outside and absorbs the noise inside, it is used for walls and ceilings of homes, factories, offices, and listening rooms.

In particular, the physical properties of the strofoam used in the present embodiment is as follows. First, the density of the straw is more than 15kg / m³, the thermal conductivity is less than 0.043 W / mk or less than 0.037 kcal / mh ℃, the bending strength is more than 15 N / cm² or more than 1.5 kg / cm². Compressive strength is not less than 5 N / cm² or more than 0.5 kg / cm², absorption is less than 1.5 g / 100cm², and the flame should be extinguished within 3 seconds during combustion, so that there is no dregs and no burning above the limit of combustion.

Meanwhile, the sound insulation board 10 and the cover plate 20 may be manufactured using the same material among the above-mentioned first sound insulation materials, or may be made of different materials, respectively, but it is preferable to use the same material. This is similar to the extent that deformation occurs when the soundproof plate 10 and the cover plate 20 are made of the same material when deformation of the noise prevention material 1 occurs due to a change in external pressure or temperature after construction. This is because the soundproof plate 10 and the cover plate 20 can be prevented from being separated from each other as much as possible. However, when the sound insulation plate 10 and the cover plate 20 are made of different materials, the shrinkage rate is different, so that the sound insulation plate 10 and the cover plate 20 are likely to be separated from each other.

On the other hand, the many sound insulation holes 15 formed in the sound insulation board 10 are formed in cylindrical form, and are arrange | positioned at predetermined intervals, as shown to FIG. The sound insulation hole 15 may be integrally formed at the time of injection foam molding of the soundproof plate 10, and the soundproof plate 10 may be formed by pressing a soundproof plate 10 with a hot rod. At this time, when the sound insulation hole 15 is formed by using a hot rod, the sound insulation hole 15 region is compressed by heat, and thus there is an advantage that strength is reinforced. Meanwhile, in the first embodiment, the sound insulation holes 15 adjacent to each other are formed to be arranged in the same column and row, but the sound insulation holes 15 may be alternately arranged alternately with the sound insulation holes 15 in the neighboring columns. .

The sound insulation hole 15 of the sound insulation plate 10 is filled with a second sound insulation material 40 different from the first sound insulation material forming the sound insulation plate 10 and the cover plate 20. As the second soundproofing material 40, sand, soil, loess, vermiculite, PP particles, EPS particles, jade powder, stone powder, waste tire, sawdust, cork, etc. are used, and each material is pulverized into fine particles. . Here, the ocher, jade powder, etc. emits far infrared rays that are good for the body, thereby affecting the blood circulation and the like, and contributing to the health, and can be said to be materials suitable for the well-being trends that are occurring recently. Only one of each of the second sound insulation materials 40 may be selected to be filled in the sound insulation hole 15, or two or more of each second sound insulation material 40 may be selected and mixed and then filled in the sound insulation hole 15. . In addition, each second sound insulation material 40 may be filled to completely fill the sound insulation hole 15, or may be half filled with a predetermined clearance. The second soundproofing material 40 absorbs the noise formed by the gap between the materials.

Meanwhile, although the sound insulation hole 15 is formed in a cylindrical shape in the above-described first embodiment, as shown in the second embodiment of FIG. 3, the sound insulation hole 15 may be formed in a square shape. The grid pattern is formed. As a modified example of the first and second embodiments, in the third embodiment of FIG. 4, the sound insulation hole 15 is formed in a funnel shape that becomes narrower toward the lower portion. The operation of filling the sound insulation hole 15 with the soundproof material 40 is smooth. Meanwhile, in FIG. 4, the cylindrical soundproof hole 15 is formed at an angle, but the soundproof hole 15 may be formed so as to become narrower toward the bottom after forming the soundproof hole 15 in a square shape as in the second embodiment. Of course.

The barrier layer 30 is coupled to an upper portion of the sound insulation board 10 in which the sound insulation holes 15 are formed, and the barrier layer 30 is a second sound insulation material accommodated in the sound insulation hole 15 during the transportation of the noise prevention material 1. It is to prevent to move to the gap between the 10 and the cover plate 20. The barrier layer 30 may be made of various materials such as nonwoven fabric, OPP tape, various films, paper, and cloth. In order to accommodate the barrier layer 30, the soundproof plate 10 is plated with an area except for a predetermined width of the edge thereof. The receiving groove may be formed by recessing from the predetermined depth.

On the other hand, in the above-described embodiment, although the sound insulation plate 10 is formed of one member, as shown in FIGS. 5 to 7 to be described later, it may be manufactured by separating into two parts.

5 is an exploded perspective view of the noise suppression material according to the fourth embodiment of the present invention. The noise suppression material according to the fourth embodiment includes a pair of upper and lower sound insulation panels 110 and 120, and an intermediate sound insulation board 130 disposed between the upper and lower sound insulation plates 110 and 120 and having a plurality of sound insulation holes 135. . The upper and lower sound insulation boards 110 and 120 and the middle sound insulation board 130 are formed of the first sound insulation material as in the first to third embodiments, and the second sound insulation hole 135 of the middle sound insulation board 130 is described above. The soundproof material 140 is filled. Here, the upper and lower sound insulation boards 110 and 120 are formed to a thickness of 6 to 20mm, the middle sound insulation board 130 is formed to a thickness of 6 to 15mm, preferably the upper and lower sound insulation panels 110 and 120 are 8 to 15mm thick. The middle sound insulation board 130 is formed to a thickness of 8 to 12mm.

The first soundproofing material used in the fabrication of the upper and lower soundproofing plates 110 and 120 and the intermediate soundproofing plate 130 may be made of EVA, EPS, PETG, PE, PSP, PP, rubber sheet, urethane, etc. as in the above-described embodiment. Among them, it is most preferable to use styrofoam. As described above, the upper and lower sound insulation panels 110 and 120 and the middle sound insulation board 130 may use the same material in preparation for deformation after construction.

On the other hand, unlike the first to third embodiments, in the fourth embodiment, a plurality of sound insulation holes 135 are formed in the intermediate sound insulation plate 130 to penetrate the intermediate sound insulation plate 130, and the sound insulation holes 135 are As shown in Fig. 5, the cylinders are formed and arranged at predetermined intervals. Like the second and third embodiments, the shape or arrangement of the soundproof hole 135 may be formed in a square shape, as shown in FIG. 6, and as shown in FIG. It may be formed in a narrowing funnel shape.

In the sound insulation hole 135 of the intermediate sound insulation board 130, sand, soil, loess, vermiculite, PP particles, EPS particles, jade powder, stone powder, waste tire, sawdust, cork, and the like, as in the first to third embodiments The second soundproof material 140, which is crushed, is filled.

Looking at the process of manufacturing the noise preventing material (1) by such a configuration as follows.

First, when the noise prevention material 1 is made of a soundproof plate 10, a cover plate 20, a blocking film 30, the soundproof plate 10 and the cover plate 20 is made of the first soundproofing material, and then the soundproof plate ( The soundproof hole 15 is formed with a heat rod in 10). Then, the second sound insulation material 40 is filled in the sound insulation hole 15 of the sound insulation plate 10. Then, by applying or taping the adhesive on the top of the sound insulation panel 10 to bond the barrier film 30, the adhesive is applied or taped on it again to bond the cover plate 20. Finally, by using a press to press the soundproof plate 10 and the cover plate 20 to cause cracks.

On the other hand, when the noise prevention material is composed of the upper and lower soundproof plates 110 and 120 and the middle soundproof plate 130, the middle soundproof plate 130 is seated on the upper portion of the lower soundproof plate 120, and the lower soundproof plate 120 and the taping or bonding The middle sound insulation board 130 is combined. Then, the second sound insulation material 140 is filled in the sound insulation hole 135 of the middle sound insulation panel 130, and the upper sound insulation plate 110 is covered by taping or bonding the upper sound insulation plate 110 on the upper portion of the middle sound insulation panel 130. ) And the middle sound insulation board 130 is combined. Finally, by pressing the upper soundproof plate 110 and the lower soundproof plate 120 at a predetermined pressure with a press, the performance of the upper and lower soundproof panels 110 and 120 and the middle soundproof panel 130 may be improved.

Comparing the quality test results of this completed noise prevention material (1) with the quality-related standards of the Ministry of Construction and Transportation as follows. In this test, sand was used as the second soundproofing material (40,140). The table below shows the test results of the specimen A filled with half the sand in the soundproof holes (15,135) and the specimen B filled with the sand. In general, according to the quality-related standards of the Ministry of Construction and Transportation, the dynamic modulus should satisfy 10 to 30 (MN / ㎥) per unit area, the loss coefficient should be 0.1 to 0.4, and the change of dynamic elastic modulus and loss coefficient per unit area before and after heating It should be within 20%. As can be seen from the table below, in the case of specimen A, the dynamic modulus of elasticity was 115% since the elastic modulus was 12.9 before heating and 14.8 after heating. Therefore, the change in dynamic modulus of elasticity is within 20%, so the specification is satisfied. In the case of specimen B, the coefficient of dynamic elasticity before heating is 13.2, which is greater than 10 and less than 30, and the coefficient of change does not exceed 20% because the coefficient of elasticity of elasticity after heating is 14.4, 109% before heating. In addition, since the loss coefficient changed from 0.16 to 0.13 before and after heating, the rate of change does not exceed 20%. Therefore, in case of specimen A and specimen B, it satisfies the quality-related standards of the Ministry of Construction and Transportation.

Test Items Test standard Test result Specimen A (Styrofoam + sand half-filled) Specimen B (Styrofoam + sand fully charged) Dynamic modulus of elasticity (MN / ㎥) Before heating 40 or less 12.9 13.2 After heating Within 120% before heating 14.8 (115%) 14.4 (109%) Loss factor Before heating 0.1 to 0.3 0.25 0.16 After heating 0.1 to 0.3 0.20 0.13 (81%)

On the other hand, look at the process of constructing the noise preventing material (1) as follows. First, the noise prevention material 1 assembled on the foundation slab is laid, and the neighboring noise prevention material 1 is interrupted | blocked by taping or an adhesive agent. Then, light weight foam concrete is poured and cured, a heating hot water pipe is arranged thereon, and a mortar finishing layer composed of sand and cement is poured.

Thus, this noise prevention material 1 uses various 1st sound insulation materials, such as styrofoam, and the 2nd sound insulation material containing sand, and presses the noise prevention material 1 with a press at the last stage of a manufacturing process. By the cracks generated in the structure of the soundproof plate 10 and the cover plate 20, the upper and lower soundproof panels 110, 120 and the middle soundproof panel 130, the noise is absorbed in the cracks can double the effect of preventing the interlayer noise. . In addition, it is lighter than conventional waste tires or rubber panels, and the construction is easy by using the noise prevention material (1) in the assembled state. In addition, by adhering or taping between the noise preventing materials 1 during construction, the lightweight foamed concrete can be prevented from flowing down.

On the other hand, styrofoam, which is the first soundproofing material, does not generate methane gas even when it is buried in the ground, and does not pollute the groundwater. Sand, soil, loess, vermiculite, PP particles, EPS particles, charcoal, jade powder, stone powder, waste tires, sawdust, and cork may be recycled materials. It can be separated and recycled again. Therefore, this noise prevention material (1) is an environmentally friendly product that can prevent the environmental destruction, because it can be recycled without additional pollution during disposal, it is possible to use the recycled material and to recycle the material again when discarded In this regard, the cost can be reduced.

As described above, in the detailed description of the present invention, specific embodiments have been described, but it should be taken as an example, and various modifications may be made without departing from the technical spirit of the present invention. Therefore, the scope of the present invention should not be limited to the embodiments described, but should be defined by the utility model registration claims as described below and equivalents to the utility model registration claims.

As described above, according to the present invention, it is possible to double the effect of preventing the noise between the layers, and the construction is easy by using a noise prevention material of the lightweight and assembled state. In addition, since the noise prevention material can be recycled without additional pollution during disposal, it is an environmentally friendly product that can prevent environmental destruction, and can reduce costs.

1 is an exploded perspective view of a noise preventing material according to a first embodiment of the present invention;

Figure 2 is a cross-sectional view of the noise prevention member of Figure 1 combined;

3 is an exploded perspective view of a noise preventing material according to a second embodiment of the present invention;

4 is a cross-sectional view of the noise preventing material according to the third embodiment of the present invention;

5 is an exploded perspective view of a noise preventing material according to a fourth embodiment of the present invention;

6 is an exploded perspective view of a noise preventing material according to a fifth embodiment of the present invention;

7 is a cross-sectional view of the noise preventing material according to the sixth embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

  1: Noise prevention material 10: Sound insulation board

 15: soundproofing hole 20: cover plate

 30: blocking film 40: second soundproofing material

110: lower soundproof plate 120: upper soundproof plate

130: sound insulation plate 135: sound insulation

140: second soundproof material

Claims (19)

A sound insulation plate made of a first sound insulation material having an effect of preventing noise, and having at least one sound insulation hole recessed; A cover plate coupled to an upper portion of the soundproof plate to block the soundproof hole; Noise-proofing material, characterized in that it comprises a second sound-proof material is filled in the soundproof hole of the soundproof plate, and has an effect of preventing noise. The method of claim 1, It is coupled between the soundproof plate and the cover plate to prevent the second soundproof material filled in the soundproof hole, and further comprises a barrier film formed of at least one of a nonwoven fabric, OPP tape, various films, paper, cloth Anti-noise material. The method of claim 1, The first soundproofing material is at least one of EVA, EPS, PETG, PE, PSP, PP, rubber plate, urethane. The method of claim 3, wherein The first sound insulation material is EPS, characterized in that the noise preventing material. The method of claim 1, The second soundproofing material is a noise prevention material, characterized in that crushed at least one selected from the group consisting of sand, soil, loess, vermiculite, PP particles, EPS particles, jade powder, stone powder, waste tires, sawdust, cork . The method of claim 5, wherein The second sound insulating material is a noise preventing material, characterized in that sand. The method of claim 1, The said sound insulation board is 16-30 mm in thickness, and the said cover plate is 8-15 mm in thickness, The noise prevention material characterized by the above-mentioned. The method of claim 1, The sound insulation hole is characterized in that formed in at least one shape selected from the group consisting of a cylindrical, polygonal cylindrical recessed a predetermined depth from the plate surface of the soundproof plate. The method of claim 8, The sound insulation hole is formed by recessing a predetermined depth from the plate surface of the sound insulation plate, characterized in that the width thereof becomes narrower toward one side. A sound insulation plate made of a first sound insulation material having an effect of preventing noise, and having at least one sound insulation hole recessed; A cover plate coupled to an upper portion of the soundproof plate to block the soundproof hole; A second soundproofing material filled in the soundproof hole of the soundproofing plate and having an effect of preventing noise; And a blocking film coupled between the sound insulation plate and the cover plate to prevent the second sound insulation material from filling the sound insulation hole. The method of claim 10, The barrier layer is a noise prevention material, characterized in that formed of at least one of a nonwoven fabric, OPP tape, various films, paper, cloth. The method of claim 10, The first soundproofing material is at least one of EVA, EPS, PETG, PE, PSP, PP, rubber plate, urethane. The method of claim 10, The second sound insulation material, noise, characterized in that crushed at least one selected from the group consisting of sand, soil, loess, vermiculite, PP particles, EPS particles, jade powder, stone powder, waste tires, sawdust, cork ashes. Upper and lower sound insulating plates made of a first soundproofing material having an effect of preventing noise; An intermediate soundproof plate disposed between the upper soundproof plate and the lower soundproof plate and having at least one soundproof hole penetrating the plate surface; The noise prevention material is filled in the soundproof hole of the intermediate soundproof plate, characterized in that it comprises a second soundproofing material having an effect of preventing noise. The method of claim 14, The first soundproofing material is at least one of EVA, EPS, PETG, PE, PSP, PP, rubber plate, urethane. The method of claim 14, The second sound insulation material, noise, characterized in that crushed at least one selected from the group consisting of sand, soil, loess, vermiculite, PP particles, EPS particles, jade powder, stone powder, waste tires, sawdust, cork ashes. The method of claim 14, The upper and lower sound insulation boards have a thickness of 6 to 20 mm, and the middle sound insulation board has a thickness of 6 to 15 mm. The method of claim 14, The sound insulation hole is characterized in that formed in at least one shape selected from the group consisting of a cylindrical, polygonal cylindrical recessed a predetermined depth from the plate surface of the soundproof plate. The method of claim 18, The sound insulation hole penetrates through the middle sound insulation plate, and the width thereof becomes narrower toward one side.