Sound insulation device

A technology of sound insulation and grille, which is applied in the direction of sound-emitting devices and instruments, and can solve the problems of poor sound insulation effect of low-frequency noise

Pending Publication Date: 2021-05-28
HUBEI HANGPENG CHEM POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present application provides a sound insulation device, which is mainly used to solve the problem that the sound insulation effect of the sound insulation device on low-frequency noise is not good in the related art

Method used

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Embodiment Construction

[0042] In order to make the technical solutions and advantages in the embodiments of the present application clearer, the exemplary embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only part of the embodiments of the present application, and Not an exhaustive list of all embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0043] figure 1 Shown in is a schematic structural diagram of a sound insulation device provided by an embodiment of the present application; figure 2 shown in figure 1 Partial enlarged view of part A in the middle; image 3 Shown in is the explosion diagram of the sound insulation device provided by an embodiment of the present application; Figure 4 shown in image 3 Partial enlarged view of middle part B; ...

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Abstract

The invention discloses a sound insulation device. The sound insulation device comprises a first grid, a second grid and an elastic film, and a plurality of first through holes are formed in the first grid; a plurality of second through holes in one-to-one correspondence with the first through holes are formed in the second grating; the elastic film is clamped between the first grid and the second grid, the elastic film is tensioned in advance, the first grid and the second grid divide the elastic film into a plurality of elastic film units with discontinuous tension, and the elastic film units correspond to the first through holes one to one; and each first through hole, each second through hole and the elastic film unit arranged between the first through hole and the second through hole form a sound insulation unit. The sound insulation device can effectively absorb low-frequency noise.

Description

technical field [0001] The present application relates to the technical field of noise control, in particular to a sound insulation device. Background technique [0002] In recent years, with the advancement of science and technology and the rapid development of the national economy, traditional environmental pollution problems (such as air pollution, water pollution, etc.) have been greatly improved. However, with the rapid development of some high-tech industries (such as high-speed rail, aerospace, automobiles, etc.), low-frequency noise pollution is becoming more and more serious, and low-frequency noise pollution has gradually become an important factor restricting the development of the national economy. [0003] In the solutions of related technologies, the sound insulation materials generally adopt materials with high hardness such as steel plates. Since these sound insulation materials follow the law of quality control, under the premise that their density remains u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K11/162
CPCG10K11/162
Inventor 陆志猛李从云杜利孙涛左军涛王青松张海鹏王平
Owner HUBEI HANGPENG CHEM POWER TECH
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