Novel metamaterial with sound absorption performance

Abstract

The utility model relates to the technical field of acoustic materials, in particular to a novel metamaterial with sound absorption performance, which comprises a polyurethane sponge, a plurality of mounting channels are arranged outside the polyurethane sponge, a corrugated pipe is clamped in each mounting channel, openings are arranged in the polyurethane sponge corresponding to the interiors of the mounting channels, and the openings are communicated with the mounting channels. The corrugated pipe is installed in an installation channel formed in the polyurethane sponge to form a composite structure, the composite structure can give full play to the advantages of the polyurethane sponge and the corrugated pipe, acoustic characteristics are changed, the corrugated pipe forms a specific air channel and an acoustic resonance structure in the polyurethane sponge, and the acoustic resonance effect is improved. Compared with the prior art, the sound wave absorbing and scattering capacity of the material is improved, so that the noise reduction effect is remarkably improved, meanwhile, the flexibility characteristic of the polyurethane sponge is reserved, the material can adapt to surfaces of different shapes and installation environments, the material can be conveniently installed and used in various occasions, and the installation adaptability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to acoustics material technical field, especially a novel superstructure material with sound absorption performance. BACKGROUND

[0002] Acoustic superstructure material is a kind of composite material or structure designed and manufactured artificially, with the super-normal acoustic characteristics that natural materials do not have, the acoustic superstructure material commonly seen in market can realize the noise reduction effect to some extent, but there are the following problems;

[0003] 1, the flexibility of most traditional sound absorption materials is insufficient, shape is relatively fixed, when facing irregular or special-shaped surface, installation adaptability is poor;

[0004] 2, although traditional flexible sound absorption material has certain sound absorption capacity, but the noise reduction effect is poor. UTILITY MODEL CONTENT

[0005] In view of the deficiency of prior art, the utility model provides a novel superstructure material with sound absorption performance, solve the flexibility of sound absorption material, shape is relatively fixed, when facing irregular or special-shaped surface, installation adaptability is poor, although traditional flexible sound absorption material has certain sound absorption capacity, but the noise reduction effect is poor technical problem.

[0006] To realize above-mentioned purpose, the utility model passes through following technical scheme to realize:

[0007] A novel superstructure material with sound absorption performance, including polyurethane sponge, the outside of polyurethane sponge is provided with a plurality of installation channels, the inside of each installation channel is all clamped with bellows, one side of polyurethane sponge corresponding each installation channel is all provided with opening, and the inside of opening is communicated with installation channel.

[0008] Optimal, the both ends in each installation channel are provided with the limiting block for limiting the transverse movement of bellows, and bellows is located between opening and limiting block.

[0009] Optimal, one side of each bellows corresponding each limiting block is all provided with limiting slot, limiting block is slidably connected in the inside of limiting slot, and one side of polyurethane sponge corresponding each limiting block is all provided with fixed hole, and limiting block is slidably connected in the inside of fixed hole.

[0010] Optimal, the both ends of each installation channel are provided with the fixed block for limiting the vertical movement of bellows, one side of bellows corresponding each fixed block is all provided with fixed slot, and fixed block is slidably connected in the inside of fixed slot, and one side of each installation channel corresponding each fixed block is all provided with installation hole, and fixed block is slidably connected in the inside of installation hole.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] I, the corrugated pipe is installed in the installation channel of the polyurethane sponge, and a composite structure is formed, the composite structure can fully exert the advantages of the polyurethane sponge and the corrugated pipe, changes acoustic characteristics, the corrugated pipe forms specific air channels and acoustic resonance structures inside the polyurethane sponge, increases the absorption and scattering ability of the material to sound waves, thereby significantly improving the noise reduction effect, meanwhile, the flexible characteristics of the polyurethane sponge are retained, so that the material can adapt to surfaces and installation environments of different shapes, installation and use are facilitated in various occasions, and installation adaptability is improved.

[0013] II, by setting the limiting block, cooperating with the fixed block, when the corrugated pipe is inserted into the inside of the installation channel, the limiting block enters the inside of the installation channel through the fixing hole at this time, the limiting block can be inserted into the inside of the limiting slot at this time, the limiting block and the polyurethane sponge are bonded by using the glue at this time, the fixed block is connected in the inside of the installation hole after sliding at this time, the fixed block is pushed into the inside of the fixed slot, the fixed block is bonded in the inside of the installation hole by using the glue at this time, the position of the corrugated pipe inside the polyurethane sponge is stable, the position of the corrugated pipe inside the polyurethane sponge is stable, and displacement does not occur in the use process, so that the sound absorption performance of the composite structure can be continuously and efficiently exerted. BRIEF DESCRIPTION OF DRAWINGS

[0014] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the contents of the specification can be implemented, the following preferred embodiments of the utility model are described in detail with reference to the drawings.

[0015] Fig. 1 is a perspective view of the utility model;

[0016] Fig. 2 is an exploded view of the polyurethane sponge in Fig. 1 of the utility model;

[0017] Fig. 3 is a bottom view of the corrugated pipe in the utility model; Figure 2

[0018] Fig. 4 is an enlarged view of A in Fig. 1 of the utility model;

[0019] Fig. 5 is an enlarged view of B in the utility model. Figure 2

[0020] Legend: 1, polyurethane sponge; 2, installation channel; 3, corrugated pipe; 4, opening; 5, limiting block; 6, fixing hole; 7, fixed block; 8, fixed slot; 9, installation hole; 10, limiting slot. DETAILED DESCRIPTION ​​

[0021] The embodiment of the application effectively solves the technical problems of insufficient flexibility of sound-absorbing materials, fixed shape, poor installation adaptability when facing irregular or special-shaped surfaces, and poor noise reduction effect of traditional flexible sound-absorbing materials.

[0022] Embodiment

[0023] As shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4 and Figure 5 The technical scheme in the embodiment of the application effectively solves the technical problems of insufficient flexibility of sound-absorbing materials, fixed shape, poor installation adaptability when facing irregular or special-shaped surfaces, and poor noise reduction effect of traditional flexible sound-absorbing materials, and the general idea is as follows:

[0024] In view of the problems in the prior art, the utility model provides a novel superstructure material with sound-absorbing performance, including polyurethane sponge 1, the outside of polyurethane sponge 1 is provided with a plurality of installation channels 2, the inside of each installation channel 2 is all clamped with bellows 3, one side of polyurethane sponge 1 corresponding each installation channel 2 is all provided with opening 4, and the inside of opening 4 is communicated with installation channel 2.

[0025] The inside of each installation channel 2 is provided with limiting block 5 for limiting the transverse movement of bellows 3 at both ends, bellows 3 is located between opening 4 and limiting block 5, and one side of each bellows 3 corresponding each limiting block 5 is provided with limiting slot 10, and limiting block 5 is slidably connected in the inside of limiting slot 10.

[0026] One side of polyurethane sponge 1 corresponding each limiting block 5 is provided with fixed hole 6, the inside of fixed hole 6 is communicated with installation channel 2, and limiting block 5 is slidably connected in the inside of fixed hole 6.

[0027] Both ends of each installation channel 2 are provided with fixed block 7 for limiting the vertical movement of bellows 3, one side of bellows 3 corresponding each fixed block 7 is provided with fixed slot 8, and fixed block 7 is slidably connected in the inside of fixed slot 8, and one side of each installation channel 2 corresponding each fixed block 7 is provided with installation hole 9, and fixed block 7 is slidably connected in the inside of installation hole 9.

[0028] Polyurethane sponge 1: as the matrix material of the composite structure, has good flexibility, elasticity and sound-absorbing performance, the porous structure can preliminarily absorb and scatter sound waves, and at the same time provides an installation basis for other structures, and can adapt to different shapes of surfaces and installation environments due to flexibility;

[0029] Installation channel 2: Provides installation position for corrugated pipe 3, defines the layout of corrugated pipe 3 in polyurethane sponge 1, enables corrugated pipe 3 to be arranged in order;

[0030] Corrugated pipe 3: Has certain rigidity and specific acoustic characteristics, forms specific air channels and acoustic resonance structures inside polyurethane sponge 1, increases the absorption and scattering ability of the material to sound waves, and improves the noise reduction effect;

[0031] Open hole 4: Communicates with installation channel 2, further optimizes the propagation path of sound waves inside the material, increases the contact area of sound waves with the material, and helps to improve the sound absorption efficiency;

[0032] Limiting block 5: Ensures the stability of corrugated pipe 3 in the lateral position, so that its acoustic structure can work stably;

[0033] Fixing hole 6: Communicates with installation channel 2, provides a path for limiting block 5 to enter installation channel 2, and also provides certain constraints for the installation of limiting block 5;

[0034] Fixed block 7: Guarantees the stability of corrugated pipe 3 in the vertical position, and maintains the overall stability of the composite structure;

[0035] Fixed groove 8: Cooperates with fixed block 7 to provide a sliding connection structure for fixed block 7, so that fixed block 7 can effectively limit the vertical movement of corrugated pipe 3;

[0036] Mounting hole 9: Provides a path for fixed block 7 to enter installation channel 2, and to a certain extent, assists the installation of fixed block 7;

[0037] Limiting groove 10: Cooperates with limiting block 5 to enable limiting block 5 to stably limit the lateral movement of corrugated pipe 3.

[0038] Working principle:

[0039] First, insert the corrugated pipe 3 into the inside of the installation channel 2, the composite structure composed of polyurethane sponge 1 and corrugated pipe 3 is initially formed, the polyurethane sponge 1 has good flexibility, elasticity and sound absorption performance, and is one of the representatives of traditional flexible sound absorption materials, the corrugated pipe 3 is made of special material and specification, has certain rigidity and special acoustic characteristics, this composite structure can fully exert the advantages of polyurethane sponge 1 and corrugated pipe 3, change the acoustic characteristics, the corrugated pipe 3 forms a specific air channel and acoustic resonance structure inside the polyurethane sponge 1, increases the material's ability to absorb and scatter sound waves, thereby significantly improving the noise reduction efficiency, at the same time, the flexible characteristics of the polyurethane sponge 1 are retained, so that the material can adapt to different shapes of surface and installation environment, compared with the common acoustic metamaterials on the market, the structure is simpler, the cost is lower, and the cost performance is higher. According to different application requirements, customized design can be carried out to meet the acoustic requirements of various specific scenes;

[0040] Second, after the corrugated pipe 3 is inserted into the inside of the installation channel 2, the limiting block 5 is inserted into the inside of the installation channel 2 through the fixing hole 6, the limiting block 5 can be inserted into the inside of the limiting groove 10 at this time, the limiting block 5 and the polyurethane sponge 1 are bonded by using glue at this time, the fixing block 7 is slidingly connected in the inside of the installation hole 9, and then the fixing block 7 is pushed to make the fixing block 7 enter the inside of the fixing groove 8, and then the fixing block 7 is bonded in the inside of the installation hole 9 by using glue.

[0041] Finally, it should be pointed out that: obviously, the above embodiments are only examples for clearly illustrating the utility model, and are not limited to the implementation mode. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the implementation modes. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A new metamaterial with sound absorption properties, comprising a polyurethane sponge (1), characterized in that, The polyurethane sponge (1) is externally provided with a plurality of installation channels (2), and the inside of each installation channel (2) is clamped with a bellows (3); Wherein, the polyurethane sponge (1) is externally provided with a plurality of installation channels (2), and the inside of each installation channel (2) is clamped with a bellows (3); 2. A new type of metamaterial with sound absorption performance according to claim 1, characterized in that, The two ends of each installation channel (2) are provided with limiting blocks (5) for limiting the transverse movement of the bellows (3); Wherein, the bellows (3) is located between the limiting block (5) and the limiting slot (10).

3. A new type of metamaterial with sound absorption performance according to claim 2, characterized in that, Each bellows (3) is externally provided with a limiting slot (10) corresponding to each limiting block (5), Wherein, the limiting block (5) is slidingly connected in the limiting slot (10).

4. A new type of metamaterial with sound absorption performance according to claim 2, characterized in that, The polyurethane sponge (1) is externally provided with a plurality of installation channels (2), and the inside of each installation channel (2) is clamped with a bellows (3); Wherein, the limiting block (5) is slidingly connected in the limiting slot (10).

5. A new type of metamaterial with sound absorption performance according to claim 1, characterized in that, The two ends of each installation channel (2) are provided with limiting blocks (5) for limiting the transverse movement of the bellows (3); Wherein, the bellows (3) is located between the limiting block (5) and the limiting slot (10).

6. A new type of metamaterial with sound absorption performance according to claim 5, characterized in that, Each installation channel (2) is externally provided with an installation hole (9) corresponding to each limiting block (5); Wherein, the limiting block (5) is slidingly connected in the limiting slot (10).

Images