Metal sound absorption and insulation composite board

Abstract

The utility model discloses a metal sound absorption and insulation composite board, and relates to the technical field of sound insulation and noise reduction. The composite board comprises a composite board body, the composite board body is composed of a galvanized steel plate, a damping sound insulation felt, a light steel keel, glass sound absorption cotton, a wrapping layer and a galvanized perforated plate, the glass sound absorption cotton is filled in the inner side of the light steel keel, and sound absorption glass fabric and a waterproof sound transmission film are wrapped outside the light steel keel and used for water prevention and sound transmission of the composite board. The metal sound absorption and insulation composite board is used for manufacturing a sound insulation and noise reduction device of an equipment sound insulation cover, is usually composed of a cover and can cover a high-noise sound source inside, so that noise is effectively prevented from being transmitted outwards, the influence of the noise on the environment is reduced, the noise can be effectively absorbed, converted and blocked through a multi-layer structure, and the sound insulation and noise reduction effects are good. And noise generated during operation of the equipment is obviously reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sound insulation and noise reduction, in particular to a metal sound-absorbing and sound-insulating composite board. Background Art

[0002] In recent years, with the continuous advancement of economic and social development, and China's increasing attention to noise pollution, the market size of the sound insulation enclosure industry has continued to expand. The demand for sound insulation enclosures mainly comes from industries, construction, transportation and other fields. With the acceleration of urbanization and the improvement of people's requirements for living environment, the demand for sound insulation enclosures in these fields continues to increase, especially in some areas or industries with serious noise pollution. The demand for sound insulation enclosures is more urgent. When electromechanical equipment is in use, some of the sound volume is as high as 100 decibels, and the low-frequency energy of the noise is strong. The excited sound energy impacts the ordinary sound insulation enclosure board to form resonance, which seriously interferes with the surrounding sound environment and affects the normal work and rest of nearby people.

[0003] At present, the sound insulation measures commonly used in equipment are relatively simple, often through the superposition of multiple layers of panels for sound insulation, but it cannot solve the equipment noise problem very well. Nowadays, with the continuous changes and upgrades in the demand for sound insulation and noise reduction, it is necessary to adjust the product structure in time according to changes in market demand to solve the above problems. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a metal sound-absorbing and sound-insulating composite board to solve the current technical problem that ordinary sound insulation covers do not have waterproof, sound insulation and noise reduction.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a metal sound-absorbing and sound-insulating composite panel, comprising a composite panel, wherein the composite panel is composed of a galvanized steel plate, a damping sound-insulating felt, a light steel keel, glass sound-absorbing cotton, a wrapping layer, and a galvanized perforated plate, wherein the inner side of the light steel keel is filled with glass sound-absorbing cotton, and the outer side of the light steel keel is wrapped with a sound-absorbing glass fiber cloth and a waterproof sound-permeable membrane, which is used for waterproofing and sound-permeability of the composite panel.

[0006] By adopting the above technical solution, the metal sound-absorbing and sound-insulating composite board is a sound insulation and noise reduction device used to make a sound insulation cover for equipment, which is usually composed of a cover, which can cover the high-noise sound source inside, thereby effectively blocking the external transmission of noise and reducing the impact of noise on the environment. The multi-layer structure can effectively absorb, transform and block noise, and significantly reduce the noise generated when the equipment is running.

[0007] Furthermore, the thickness of the galvanized steel plate is 1.2 mm, the thickness of the damping sound insulation felt is 2.0 mm, the thickness of the light steel keel is 100 mm, the thickness of the glass sound-absorbing wool is 100 mm, and the thickness of the galvanized perforated plate is 0.6 mm.

[0008] By adopting the above technical solution, the 1.2mm thick galvanized steel plate is a thin galvanized steel plate, the galvanized layer of which can effectively prevent the steel plate from corrosion, and the steel plate has a high density and can have good sound insulation performance.

[0009] Furthermore, the apparent density of the glass sound-absorbing wool is 48kg / m3.

[0010] By adopting the above technical solution, the internal air content of the glass sound-absorbing cotton is very high, which can absorb and eliminate sound waves very well, so it has very good sound insulation performance.

[0011] Furthermore, the perforation rate of the galvanized perforated plate is ≥23%.

[0012] In summary, the utility model mainly has the following beneficial effects:

[0013] 1. The utility model is provided with a sound-absorbing glass fiber cloth, which is a cloth-like material woven from glass fibers. It has a good sound insulation effect, can effectively absorb and block the propagation of sound, and is widely used in the fields of building sound insulation. In addition, the sound-absorbing glass fiber cloth also has the characteristics of good high temperature resistance, corrosion resistance and high mechanical strength, and can adapt to various harsh working environments;

[0014] 2. The utility model sets a waterproof sound-permeable membrane, which is a sound-permeable material with waterproof function. It can effectively prevent water penetration while maintaining sound transmission, thereby ensuring that the equipment can work normally in a humid or watery environment. It is usually made of polymer materials, has excellent waterproof performance and sound transmission performance, and can meet the needs of various special environments. Sound-absorbing glass fiber cloth and waterproof sound-permeable membrane can often cooperate with each other in practical applications and play a role together. For example, in a scene where sound insulation and waterproofing are required at the same time, the sound-absorbing glass fiber cloth and the waterproof sound-permeable membrane can be used in combination to achieve the best effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model.

[0016] In the figure: 1. Galvanized steel plate; 2. Damping sound insulation felt; 3. Light steel keel; 4. Glass sound-absorbing cotton; 5. Wrapping layer; 6. 0.6mm thick galvanized perforated plate. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0018] In the description of the present invention, it should be noted that the terms "center", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The following describes an embodiment of the utility model based on its overall structure.

[0021] Metal sound-absorbing and sound-insulating composite panels, such as Figure 1 As shown, the composite board includes a galvanized steel plate 1, a damping sound insulation felt 2, a light steel keel 3, a glass sound-absorbing cotton 4, a wrapping layer 5, and a galvanized perforated plate 6. The inner side of the light steel keel 3 is filled with glass sound-absorbing cotton 4, and the outer side of the light steel keel 3 is wrapped with a sound-absorbing glass fiber cloth and a waterproof sound-permeable membrane for waterproofing and sound-permeability of the composite board. The metal sound-absorbing and sound-insulating composite board is a sound insulation and noise reduction device for making a sound insulation cover for equipment, which is usually composed of a cover, which can cover the sound source of high noise inside, thereby effectively blocking the external transmission of noise and reducing the impact of noise on the environment. The multi-layer structure can effectively absorb, transform and block noise, and significantly reduce the noise generated during the operation of the equipment. By significantly reducing the noise generated during the operation of the equipment, the metal sound-absorbing and sound-insulating composite board provides a quieter and more comfortable working environment for the staff, which is conducive to improving work efficiency and reducing the occurrence of occupational diseases.

[0022] See also Figure 1, the thickness of the galvanized steel plate 1 is 1.2mm, the thickness of the damping sound insulation felt 2 is 2.0mm, the thickness of the light steel keel 3 is 100mm, the thickness of the glass sound-absorbing cotton 4 is 100mm, and the thickness of the galvanized perforated plate 6 is 0.6mm. The 1.2mm thick galvanized steel plate is a thin galvanized steel plate, and its galvanized layer can effectively prevent the corrosion of the steel plate. The steel plate has a high density and can have good sound insulation performance. The 2.0mm thick damping sound insulation felt is an efficient and thin damping sound insulation material with a thickness of 2.0mm, which is specially designed to avoid the matching effect and low-frequency resonance of the plate. This felt material is mainly composed of a damping layer and a sound insulation layer, which reduces the propagation of noise by absorbing, reflecting and converting sound wave energy.

[0023] See also Figure 1 The apparent density of glass sound-absorbing cotton 4 is 48kg / m3. The internal air content of glass sound-absorbing cotton is very high, which can absorb and eliminate sound waves very well, so it has very good sound insulation performance.

[0024] See also Figure 1 , the perforation rate of galvanized perforated sheet 6 is ≥23%.

[0025] The implementation principle of the utility model is as follows: when the composite board is vibrated, the vibration is transmitted to the limit outer frame through the light steel keel 3, and the damping sound insulation felt 2 has a vibration reduction effect. The damping sound insulation felt 2 is an ideal damping material and has a damping effect on vibration. The damping sound insulation felt is used as an internal vibration reduction structure to weaken the vibration energy. The glass sound-absorbing cotton 4 has the effect of absorbing and blocking the propagation of noise. The outer sound-absorbing glass fiber cloth and the waterproof sound-permeable membrane are used in combination to achieve the effects of sound insulation and waterproofing at the same time. After the composite vibration reduction, sound absorption and sound insulation of the metal sound-absorbing and sound-insulating composite board, the equipment noise can be reduced to the maximum extent to avoid affecting the sound environment around the equipment.

[0026] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. Metal sound-absorbing and sound-insulating composite panel, characterized by: The invention comprises a composite plate, wherein the composite plate is composed of a galvanized steel plate (1), a damping sound insulation felt (2), a light steel keel (3), glass sound absorbing cotton (4), a wrapping layer (5), and a galvanized perforated plate (6); the inner side of the light steel keel (3) is filled with glass sound absorbing cotton (4), and the outer side of the light steel keel (3) is wrapped with sound absorbing glass fiber cloth and a waterproof sound-permeable membrane, so as to make the composite plate waterproof and sound-permeable.

2. The metal sound-absorbing and sound-insulating composite panel according to claim 1, characterized in that: The thickness of the galvanized steel plate (1) is 1.2 mm, the thickness of the damping sound insulation felt (2) is 2.0 mm, the thickness of the light steel keel (3) is 100 mm, the thickness of the glass sound-absorbing cotton (4) is 100 mm, and the thickness of the galvanized perforated plate (6) is 0.6 mm.

3. The metal sound-absorbing and sound-insulating composite panel according to claim 1, characterized in that: The apparent density of the glass sound-absorbing cotton (4) is 48 kg / m3.

4. The metal sound-absorbing and sound-insulating composite panel according to claim 1, characterized in that: The perforation rate of the galvanized perforated plate (6) is ≥23%.

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