CN203834714U - Sound insulation building board - Google Patents

Abstract

The utility model discloses a sound insulation building board. The sound insulation building board is composed of wooden composite boards, glass fiber cotton, a round cavity foam board and resonant balls. The outermost layers of the two sides of the sound insulation building board are composed of the wooden composite boards, the inner sides of the wooden composite boards on the outermost layers of the two sides are provided with the glass fiber cotton respectively, the round cavity foam board is arranged between the two layers of glass fiber cotton and formed by pouring of two half molds, and the resonant balls are placed inside a cavity of the round cavity foam board. According to the sound insulation building board, the sound adsorption and sound insulation principles are utilized, a double-layer composite structure is adopted, and the sound insulation effect is remarkable; when passing the first layer wooden composite board, external sound waves can be weakened, part of the sound waves can be absorbed when the sound waves pass the second layer glass fiber cotton, and when passing the round cavity foam board in the middle, the sound waves can be weakened again under the reflection effect of the resonant balls and the round cavity. The double-layer composite structure is adopted in the sound insulation building board, the sound waves can be eliminated after being absorbed and insulated multiple times, adopted materials of the sound insulation building board are low in cost, installation is simple, and the effect is obvious.

Description

Acoustic Construction Panel

technical field

The utility model belongs to the technical field of building templates, in particular to a sound-insulating building board. the

Background technique

General objects have sound insulation effects. Sound is a wave-like energy that needs a medium to propagate. When propagating in the same medium, the greater the density of the medium, the faster the propagation speed. When propagating in different media, that is, from one medium to another medium through the critical contact surface of two media, at this time, the transmission of sound energy is essentially the transmission of vibration amplitude, so the sound energy will be lost, when the two The greater the density difference between the two media, the greater the loss of sound energy. Since the material with a greater difference in density from the air is generally a high-density material, the higher the density, the better the sound insulation effect. In life, the noise produced by vehicles and construction sites has a great impact on people's life and work, and even brings harm to people's health. For this reason, many house decorations and construction projects have adopted many sound insulation facilities. At present The sound insulation panels on the market are all designed with a single layer, and the cost is relatively high. The sound absorption and sound insulation effects of this kind of sound insulation panels are not very satisfactory, and the long-term use will be affected by corrosion and shorten the service life. the

Utility model content

The purpose of the utility model is to provide a sound-proof building board with simple structure, low cost and sound-proof and sound-absorbing functions. the

In order to achieve the above-mentioned design purpose, the technical scheme adopted by the utility model is as follows: a sound-insulating building board, which is composed of a wooden composite board, glass fiber cotton, a circular cavity foam board, and a resonant ball, wherein the two sides of the sound-insulating building board The outermost layer is composed of the wood composite board, the inner sides of the outermost wood composite boards on both sides are provided with the glass fiber wool, and a layer of circular cavity foam is arranged between the two layers of glass fiber wool The circular cavity foam plate is formed by pouring two halves of the mold, and a resonant ball is placed inside the cavity of the circular cavity foam plate. the

Beneficial effects of the utility model: the utility model uses the principle of sound absorption and sound insulation, and adopts a double-layer composite structure, which has a remarkable sound insulation effect. When the sound wave passes through the first layer of wooden composite board, the external sound wave can be weakened. When the sound wave passes through the second layer of glass fiber cotton It can absorb part of the sound wave. When the sound wave passes through the middle circular cavity foam board, the sound wave is weakened again under the reflection of the resonant ball and the circular cavity. This board adopts a double-layer composite structure, and the sound wave can In order to achieve the purpose of elimination in absorption and isolation, the cost of materials used in this board is low, the installation is simple, and the effect is obvious. the

Description of drawings

Figure 1 is a schematic structural view of the utility model. the

Detailed ways

The specific embodiment of the utility model is described in detail below in conjunction with accompanying drawing. the

A sound-insulating building board as shown in Figure 1 is composed of a wooden composite board 1, glass fiber cotton 2, a circular cavity foam board 3, and a resonant ball 4, wherein the outermost layers on both sides of the sound-insulating building board are made of The above-mentioned wooden composite board 1 is composed of, the inner side of the outermost wooden composite board 1 on both sides is provided with the glass fiber cotton 2, and a layer of circular cavity foam board is arranged between the two layers of glass fiber cotton 2 3. The circular cavity foam board 3 is formed by pouring two halves of the mold, and a resonant ball 4 is placed inside the cavity of the circular cavity foam board 3 . the

When the utility model is used: when the sound wave passes through the first layer of wooden composite board 1, the external sound wave can be weakened; when the sound wave passes through the second layer of glass fiber cotton 2, part of the sound wave can be absorbed; when the sound wave passes through the middle circular cavity foam board 3 When the sound wave is weakened again under the reflection of the resonant ball 4 and the circular cavity, the board adopts a double-layer composite structure, and the sound wave can be eliminated in several times of absorption and isolation. the

Claims (1)

1. A sound-insulating building board, made up of wooden composite board, glass fiber cotton, circular cavity foam board, and resonant balls, wherein the outermost layers on both sides of the sound-insulating building board are made of said wooden composite board, its features The inner side of the outermost wooden composite boards on both sides is provided with the glass fiber cotton, and a layer of circular cavity foam board is arranged between the two layers of glass fiber cotton, and the circular cavity foam The board is poured from two halves of the mold, and a resonant ball is placed inside the cavity of the circular cavity foam board.