Sound-absorbing glass fiber base cloth

Abstract

The utility model discloses sound-absorbing glass fiber base cloth and aims to solve the problem that the service life of non-woven fabric is affected due to the fact that the non-woven fabric is easy to abrade and age during use and the internal sound insulation effect is reduced. According to the technical scheme, the sound-absorbing glass fiber base cloth is characterized by comprising a base cloth body, the base cloth body comprises a base layer, a sound-absorbing layer and a protective layer, a plurality of sound-absorbing cavities are formed in the sound-absorbing layer, distributed in the sound-absorbing layer in an array mode and arranged in the sound-absorbing layer in a honeycomb mode, and raised grain structures are arranged on the inner walls of the sound-absorbing cavities in a protruding mode. A first sound insulation layer is arranged at one end of the sound absorption layer close to the base layer and the protective layer. According to the sound-absorbing glass fiber base cloth disclosed by the utility model, the base cloth body can be protected, and the conditions of poor sound insulation, aging and abrasion of the base cloth body are prevented, so that the service life of the base cloth body is prolonged.

Description

Technical Field

[0001] The utility model relates to a base cloth, more specifically, it relates to a sound-absorbing glass fiber base cloth. Background Art

[0002] Polyester felt is a type of non-woven fabric, also known as needle felt, needle-punched cotton, needle-punched cloth, or needle-punched cotton. Non-woven fabrics are moisture-resistant, breathable, flexible, lightweight, non-combustible, easily decomposable, non-toxic, non-irritating, colorful, inexpensive, and recyclable. They are often made from polypropylene (PP) pellets, using a continuous one-step process of high-temperature melting, spinning, laying, and hot-pressing. However, current non-woven fabrics on the market are prone to wear and aging during use, reducing their sound insulation and shortening their service life. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a sound-absorbing glass fiber base cloth, which can protect the base cloth body, prevent the base cloth body from poor sound insulation and aging and wear, thereby increasing the service life of the base cloth body.

[0004] The above technical objectives of the present utility model are achieved through the following technical solutions: a sound-absorbing glass fiber base cloth, comprising a base cloth body, the base cloth body comprising a base layer, a sound-absorbing layer and a protective layer, a plurality of sound-absorbing cavities are arranged inside the sound-absorbing layer, the plurality of sound-absorbing cavities are distributed in an array in the sound-absorbing layer and are arranged in a honeycomb shape in the sound-absorbing layer, a wavy structure is protrudingly provided on the inner walls of the plurality of sound-absorbing cavities, and a first sound insulation layer is provided at one end of the sound-absorbing layer close to the base layer and the protective layer.

[0005] By adopting the above technical solution, during the use of the base fabric body, the base layer of the base fabric body, that is, the non-woven fabric layer, is arranged on the outside of the sound-absorbing layer, and the protective layer is also arranged on the outside of the sound-absorbing layer, and the protective layer adopts a tear-resistant and ductile glass fiber layer to protect the sound-absorbing layer. When the base fabric body wraps an object or is in use, the base fabric body can absorb the noise generated by the object or other environment, and absorb the sound waves generated by the noise into the sound-absorbing layer through a number of sound-absorbing cavities, and then reduce the noise of the sound waves under the action of the wavy structure. The first sound insulation layer prevents the noise from quickly dissipating outside the base fabric body and affecting the service life of the base fabric body, and prevents the base fabric body from aging and wear, so that the object wrapped by the base fabric body can be sound-absorbed and noise-reduced.

[0006] The utility model is further configured as follows: a second sound insulation layer is provided on the wavy structure.

[0007] By adopting the above technical solution, the second sound insulation layer and the first sound insulation layer are both aluminum foil layers, and the aluminum foil layers have a certain sound insulation effect, thereby achieving the sound insulation effect of the first sound insulation layer and the second sound insulation layer.

[0008] The utility model is further configured as follows: the end of the protective layer away from the sound absorbing layer is provided with a wear-resistant layer

[0009] By adopting the above technical solution, the material of the wear-resistant layer can be polyester fiber. Polyester fiber itself has the characteristics of being strong, durable and high in strength. It can be pressed into a wavy shape through a 3D process mold. Polyester fiber itself has strong wrinkle resistance, shape retention and wear resistance, thereby improving the wear resistance and recovery ability of the base fabric body.

[0010] The utility model is further configured as follows: a plurality of ventilation holes are provided on the wear-resistant layer.

[0011] By adopting the above technical solution, the provision of a number of ventilation holes is beneficial to improving the air permeability of the wear-resistant layer, and is also beneficial to heat dissipation of the objects wrapped by the base fabric body, thereby improving the practicality and air permeability during use, thereby increasing the service life of the base fabric body.

[0012] The utility model is further configured as follows: a plurality of the sound absorbing cavities are filled with sound absorbing cotton.

[0013] By adopting the above technical solution, the setting of the sound-absorbing cotton can further improve the sound absorption effect of the sound-absorbing cavity, and under the action of the sound-absorbing cotton, the sound waves entering the sound-absorbing cavity can be further absorbed. After the sound waves generated by the noise can be consumed in the sound-absorbing cavity, the sound-absorbing cotton can also achieve the effect of sound insulation and breathability, thereby improving the sound absorption and breathability of the base fabric body.

[0014] The utility model is further configured as follows: sound absorbing holes are opened on the inner walls of the sound absorbing cavities.

[0015] By adopting the above technical solution, the opening of several sound-absorbing holes can increase the diffusivity of the sound-absorbing cavity, thereby preventing the noise received by the base fabric body from being quickly transmitted outside the base fabric body, and the sound waves generated by the noise can continuously circulate and diffuse within the base fabric body, thereby improving the sound absorption effect of the base fabric body.

[0016] To sum up, the utility model has the following beneficial effects: under the action of the protective layer, the wear-resistant layer and the sound-absorbing layer, the base fabric body can be protected to prevent the base fabric body from poor sound insulation and aging and wear, thereby improving the service life of the base fabric body and ensuring the use effect of the base fabric body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the base cloth body of the present utility model.

[0018] In the figure: 1. Base layer; 2. Protective layer; 3. Sound-absorbing layer; 4. Wear-resistant layer; 5. First sound insulation layer; 6. Second sound insulation layer; 7. Sound-absorbing cavity; 8. Corrugated structure; 9. Sound-absorbing cotton; 10. Ventilation hole. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, unless there is a conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "sleeved / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean 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, and it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood by those skilled in the art in specific circumstances.

[0022] The present invention will be described in detail below with reference to the accompanying drawings.

[0023] A sound-absorbing glass fiber base cloth, referring to Figure 1 , including a base fabric body, which includes a base layer 1, a sound-absorbing layer 3 and a protective layer 2. A plurality of sound-absorbing cavities 7 are arranged inside the sound-absorbing layer 3. The plurality of sound-absorbing cavities 7 are distributed in an array in the sound-absorbing layer 3 and are arranged in a honeycomb shape in the sound-absorbing layer 3. A wavy structure 8 is protrudingly provided on the inner wall of the plurality of sound-absorbing cavities 7. A first sound insulation layer 5 is provided at one end of the sound-absorbing layer 3 close to the base layer 1 and the protective layer 2, and a second sound insulation layer 6 is provided on the wavy structure 8. The second sound insulation layer 6 and the first sound insulation layer 5 are both aluminum foil layers, and the aluminum foil layer has a certain sound insulation effect, thereby achieving the sound insulation effect of the first sound insulation layer 5 and the second sound insulation layer 6.

[0024] A wear-resistant layer 4 is provided on one end of the protective layer 2 away from the sound-absorbing layer 3 , and a plurality of ventilation holes 10 are provided on the wear-resistant layer 4 .

[0025] The sound absorbing cavities 7 are filled with sound absorbing cotton 9 , and the inner walls of the sound absorbing cavities 7 are provided with sound absorbing holes.

[0026] Working principle: When the base fabric body is in use, the base layer 1 of the base fabric body, that is, the non-woven fabric layer, is arranged on the outside of the sound-absorbing layer 3, and the protective layer 2 is also arranged on the outside of the sound-absorbing layer 3, and the protective layer 2 adopts a tear-resistant and ductile glass fiber layer to protect the sound-absorbing layer 3. When the base fabric body wraps an object or is in use, the base fabric body can absorb the noise generated by the object or other environment, and the sound waves generated by the noise are absorbed into the sound-absorbing layer 3 through a number of sound-absorbing cavities 7, and then the sound waves are reduced under the action of the corrugated structure 8. The first sound insulation layer 5 prevents the noise from quickly dissipating outside the base fabric body and affecting the service life of the base fabric body, thereby preventing the base fabric body from aging and wear, and can absorb and reduce the noise of the object wrapped by the base fabric body.

[0027] The material of the wear-resistant layer 4 can be polyester fiber. Polyester fiber itself has the characteristics of being strong, durable and high in strength. It can be pressed into a wavy shape through a 3D process mold. Polyester fiber itself has strong wrinkle resistance, shape retention and wear resistance, thereby improving the wear resistance and recovery ability of the base fabric body. The provision of several ventilation holes 10 is conducive to improving the air permeability of the wear-resistant layer 4, and is also conducive to the heat dissipation of the objects wrapped by the base fabric body, thereby improving the practicality and air permeability during use, thereby improving the service life of the base fabric body.

[0028] The setting of the sound-absorbing cotton 9 can further improve the sound absorption effect of the sound-absorbing cavity 7, and under the action of the sound-absorbing cotton 9, the sound waves entering the sound-absorbing cavity 7 can be further absorbed. After the sound waves generated by the noise can be consumed in the sound-absorbing cavity 7, the sound-absorbing cotton 9 can also achieve the effect of sound insulation and breathability, thereby improving the sound absorption and breathability of the base fabric body.

[0029] The opening of several sound-absorbing holes can increase the diffusivity of the sound-absorbing cavity 7, thereby preventing the noise received by the base fabric body from being quickly transmitted out of the base fabric body, and the sound waves generated by the noise can continuously circulate and diffuse in the base fabric body, thereby improving the sound absorption effect of the base fabric body.

[0030] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A sound-absorbing glass fiber base fabric, comprising a base fabric body, characterized in that: The base fabric body comprises a base layer (1), a sound absorbing layer (3) and a protective layer (2); a plurality of sound absorbing cavities (7) are arranged inside the sound absorbing layer (3); the plurality of sound absorbing cavities (7) are distributed in an array in the sound absorbing layer (3) and are arranged in a honeycomb shape in the sound absorbing layer (3); a corrugated structure (8) is protrudingly provided on the inner walls of the plurality of sound absorbing cavities (7); and a first sound insulation layer (5) is provided at one end of the sound absorbing layer (3) close to the base layer (1) and the protective layer (2).

2. The sound-absorbing glass fiber base cloth according to claim 1, characterized in that: A second sound insulation layer (6) is provided on the wavy structure (8).

3. The sound-absorbing glass fiber base cloth according to claim 1, characterized in that: An end of the protective layer (2) away from the sound absorbing layer (3) is provided with a wear-resistant layer (4).

4. The sound-absorbing glass fiber base cloth according to claim 3, characterized in that: A plurality of vent holes (10) are provided on the wear-resistant layer (4).

5. The sound-absorbing glass fiber base cloth according to claim 1, characterized in that: Several of the sound-absorbing cavities (7) are filled with sound-absorbing cotton (9).

6. The sound-absorbing glass fiber base cloth according to claim 1, characterized in that: Sound absorbing holes are provided on the inner walls of the plurality of sound absorbing cavities (7).

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