High-density sound insulation sponge

Abstract

The utility model relates to the technical field of sponges, in particular to a high-density sound insulation sponge which comprises a sponge base body, a plurality of sound insulation cavities are formed in the sponge base body, first sound insulation layers are bonded to the upper face and the lower face of the sponge base body respectively, and second sound insulation layers are bonded to the sides, away from the sponge base body, of the first sound insulation layers. The sound insulation sponge has the advantages that the sound insulation performance of the sponge can be further enhanced through the sound insulation cavity, the sound insulation cavity can block the propagation path of sound waves, so that the sound waves meet obstacles in the propagation process, the transmission of the sound waves is reduced, the bulges are arranged on the inner wall of the sound insulation cavity, and the purpose of supporting the sponge main body can be achieved; the first sound insulation layer and the second sound insulation layer are both made of sound absorption materials, the sound insulation effect of the sponge can be further improved, and a plurality of sound absorption holes are formed. Due to the porous structure, sound waves can effectively enter the interior of the sponge, multiple times of reflection and energy dissipation occur in the sponge, and the sound insulation effect can also be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sponges, in particular to a high-density sound-insulating sponge. Background Art

[0002] Sponge is a porous material with good water absorption and can be used to clean items. Depending on the material it is made of, sponges can be divided into many types, and sound insulation sponge is one of them. Sound insulation sponge, also known as sound-absorbing sponge, is a material with excellent sound absorption performance. It is usually made of ordinary sponge through high-pressure molding, with high density and good acoustic properties. The uniqueness of this sponge lies in its internal porous structure, which allows sound to reflect back and forth inside the sponge, thereby reducing the spread of noise.

[0003] Current sound insulation sponges are generally made by mixing different types of raw materials in a certain proportion and undergoing foaming and molding processes to achieve the expected sound insulation effect and physical properties. However, different raw materials may have different environmental characteristics, such as recyclability and degradability. Mixing multiple raw materials may complicate the environmental performance of the sound insulation sponge and increase the difficulty of waste disposal and recycling. Therefore, a high-density sound insulation sponge is needed to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the utility model is to provide a high-density sound insulation sponge to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a high-density sound-insulating sponge, including a sponge base, the sponge base is provided with a plurality of sound-insulating cavities, the upper and lower surfaces of the sponge base are bonded with a first sound-insulating layer, the side of the first sound-insulating layer away from the sponge base is bonded with a second sound-insulating layer, and the side of the second sound-insulating layer away from the first sound-insulating layer is bonded with a surface layer.

[0007] Preferably, in any of the above schemes, the material of the surface layer is polyester fiber.

[0008] Preferably, in any of the above schemes, the sponge matrix is ​​melamine foam.

[0009] Preferably, any of the above schemes has a plurality of protrusions fixedly connected to the inner wall of the sound insulation cavity, the plurality of protrusions are linearly arrayed inside the sound insulation cavity, and the protrusions are made of the same material as the sponge matrix.

[0010] Preferably, any of the above schemes is that a plurality of sound-absorbing holes are formed through the top surface of the first sound insulation layer, and the material of the first sound insulation layer is glass fiber.

[0011] Preferably, any of the above schemes is that the material of the second sound insulation layer is plant fiber cotton.

[0012] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0013] The high-density sound insulation sponge is provided by the coordination of the sponge matrix, the sound insulation cavity, the first sound insulation layer and the second sound insulation layer. The sound insulation cavity can further enhance the sound insulation performance of the sponge. The design of the sound insulation cavity can block the propagation path of the sound wave, so that the sound wave encounters obstacles during the propagation process, thereby reducing the transmission of the sound wave. In addition, the inner wall of the sound insulation cavity is provided with a plurality of protrusions, which can play the purpose of supporting the sponge body. In addition, the first sound insulation layer and the second sound insulation layer are both made of sound-absorbing materials, which can further improve the sound insulation effect of the sponge. The arrangement of a plurality of sound-absorbing holes. Its porous structure enables the sound wave to effectively enter the interior of the sponge, and multiple reflections and energy dissipation occur therein, which can also play a sound insulation effect. The sound insulation effect of the sponge can be greatly improved through a variety of sound insulation means, and the layered arrangement can reduce the difficulty of sponge processing and recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the assembly of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the assembly of the utility model.

[0016] In the figure: 1-sponge matrix, 2-sound insulation cavity, 3-first sound insulation layer, 4-second sound insulation layer, 5-surface layer, 6-protrusion, 7-sound absorption hole. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0018] like Figure 1 to Figure 2 As shown, a high-density sound-insulating sponge comprises a sponge matrix 1, the sponge matrix 1 is provided with a plurality of sound-insulating cavities 2, a first sound-insulating layer 3 is bonded to the upper and lower surfaces of the sponge matrix 1, a second sound-insulating layer 4 is bonded to the side of the first sound-insulating layer 3 away from the sponge matrix 1, and a surface layer 5 is bonded to the side of the second sound-insulating layer 4 away from the first sound-insulating layer 3.

[0019] As an optional technical solution of the present invention, the material of the surface layer 5 is polyester fiber. Polyester fiber has good wear resistance and can greatly improve the service life of the surface layer 5.

[0020] As an optional technical solution of the present invention, the sponge matrix 1 is melamine foam, and the sponge matrix 1 made of melamine foam itself has a certain sound insulation effect.

[0021] As an optional technical solution of the present utility model, a plurality of protrusions 6 are fixedly connected to the inner wall of the sound insulation cavity 2. The plurality of protrusions 6 are linearly arrayed inside the sound insulation cavity 2. The protrusions 6 are made of the same material as the sponge matrix 1. The inner wall of the sound insulation cavity 2 is provided with a plurality of protrusions 6, which can serve the purpose of supporting the sponge body.

[0022] As an optional technical solution of the present invention, a plurality of sound-absorbing holes 7 are formed through the top surface of the first sound insulation layer 3. The first sound insulation layer 3 is made of glass fiber, which is a high-density material. When sound waves encounter this material, they will be absorbed by the fiber structure and converted into weak heat energy, thereby reducing the reflection and propagation of sound.

[0023] As an optional technical solution of the present invention, the material of the second sound insulation layer 4 is plant fiber cotton, which contains a large number of tiny interconnected pores. These pore structures provide a path for sound waves to enter and propagate. When sound waves enter the plant fiber cotton, they will penetrate into the material along these pores. In this process, the sound waves rub against the material, converting the sound energy into heat energy, thereby effectively reducing the propagation of the sound waves.

[0024] A high-density sound insulation sponge, the working principle is as follows:

[0025] 1): The sound insulation performance of the sponge can be further enhanced by setting the sound insulation chamber 2. The design of the sound insulation chamber 2 can block the propagation path of the sound waves, so that the sound waves encounter obstacles during the propagation process, thereby reducing the transmission of the sound waves.

[0026] 2): The arrangement of a plurality of sound-absorbing holes 7. The porous structure enables sound waves to effectively enter the interior of the sponge, where they are reflected multiple times and energy is dissipated, which can also achieve a sound insulation effect.

[0027] In summary, the high-density sound insulation sponge is provided with a sponge matrix 1, a sound insulation cavity 2, a first sound insulation layer 3 and a second sound insulation layer 4. The sound insulation cavity 2 can further enhance the sound insulation performance of the sponge. The design of the sound insulation cavity 2 can block the propagation path of the sound wave, so that the sound wave encounters obstacles during the propagation process, thereby reducing the transmission of the sound wave. In addition, the inner wall of the sound insulation cavity 2 is provided with a plurality of protrusions 6, which can support the main body of the sponge. In addition, the first sound insulation layer 3 and the second sound insulation layer 4 are both made of sound-absorbing materials, which can further improve the sound insulation effect of the sponge. The arrangement of a plurality of sound-absorbing holes 7. Its porous structure enables the sound waves to effectively enter the interior of the sponge, and multiple reflections and energy dissipation occur therein, which can also achieve the effect of sound insulation. The sound insulation effect of the sponge can be greatly improved through a variety of sound insulation means, and the layered arrangement can reduce the difficulty of sponge processing and recycling.

Claims

1. A high-density sound insulation sponge, characterized by: The invention comprises a sponge base (1), wherein the sponge base (1) is provided with a plurality of sound insulation cavities (2), a first sound insulation layer (3) is bonded to both the upper and lower surfaces of the sponge base (1), a second sound insulation layer (4) is bonded to the side of the first sound insulation layer (3) away from the sponge base (1), and a surface layer (5) is bonded to the side of the second sound insulation layer (4) away from the first sound insulation layer (3).

2. A high-density sound insulation sponge according to claim 1, characterized in that: The surface layer (5) is made of polyester fiber.

3. A high-density sound insulation sponge according to claim 2, characterized in that: The sponge matrix (1) is melamine foam.

4. The high-density sound-insulating sponge according to claim 3, characterized in that: A plurality of protrusions (6) are fixedly connected to the inner wall of the sound insulation cavity (2); the plurality of protrusions (6) are arranged in a linear array inside the sound insulation cavity (2); and the protrusions (6) are made of the same material as the sponge matrix (1).

5. The high-density sound insulation sponge according to claim 4, characterized in that: A plurality of sound-absorbing holes (7) are provided through the top surface of the first sound-insulating layer (3), and the material of the first sound-insulating layer (3) is glass fiber.

6. The high-density sound-insulating sponge according to claim 5, characterized in that: The material of the second sound insulation layer (4) is plant fiber cotton.

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