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Graphene hearing protector

A protector and graphene technology, applied in the direction of graphene, single-layer graphene, chemical instruments and methods, etc., can solve the problems of carrying and wearing traditional earmuffs to protect hearing, hearing isolation and communication barriers, and sound attenuation. To achieve the effect of avoiding hearing loss and communication barriers, avoiding hearing isolation, and avoiding human communication barriers

Active Publication Date: 2017-07-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the existing earmuffs that attract foam materials to protect hearing almost attenuate all sounds, which causes hearing isolation and communication barriers for people, and it is not easy to carry and wear traditional earmuffs to protect hearing. Convenience question

Method used

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specific Embodiment approach 1

[0023] Specific implementation mode one: combine Figure 1 to Figure 7 Describe this embodiment, this embodiment includes a frame body 1 and two cover bodies 2, the two cover bodies 2 are arranged oppositely, and the two cover bodies 2 are connected through the frame body 1, and each cover body 2 includes a suspension bracket 2-1 and the graphene film 2-2, the suspension bracket 2-1 is a bowl-shaped grid frame, and the graphene film 2-2 is attached to the suspension bracket 2-1.

specific Embodiment approach 2

[0024] Specific implementation mode two: combination figure 2 To describe this embodiment, the graphene thin film 2-2 of this embodiment has a thickness of 3-4 nm. Such a setting makes it easy to transmit the sound through the soft graphene film without loss. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0025] Specific implementation mode three: combination figure 2 To illustrate this embodiment, the number of graphene layers covered by this embodiment is 1-12 layers, and the thickness is limited to 0.1-4nm. In this way, the single-layer graphene is far more than other thin film materials, and its thickness of 3.4nm is the minimum value of the material thickness, which leads to a very low out-of-plane bending stiffness of the material. In addition, the material density per unit area of ​​graphene is very low. If the sound pressure is not enough to cause the graphene film to expand and stretch, the sound wave can pass through the soft graphene film almost without damage. Other compositions and connections are the same as those in Embodiment 1 or Embodiment 2.

[0026] Specific implementation mode four: combination Figure 3 to Figure 5 To describe this embodiment, the shape of the mesh of the bowl-shaped grid frame in this embodiment is triangular, quadrangular, circular, h...

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Abstract

The invention relates to a graphene hearing protector, and belongs to the technical field of hearing protectors. The graphene hearing protector aims to solve the problems that due to the hearing protection mode of the existing attraction-foam earmuffs, the existing attraction-foam earmuffs damp almost all the sounds, result in hearing isolation and communication barriers, and are not convenient to carry and wear for hearing protection. The graphene hearing protector comprises a support body (1) and two covers (2). The two covers (2) are opposite to each other, and connected with each other through the support body (1). Each cover (2) comprises a hanger bracket (2-1) and a graphene film (2-2), wherein the hanger bracket (2-1) is of a bowl-shaped grid support, and the graphene film is attached to the hanger bracket (2-1). The graphene hearing protector is used for hearing protection.

Description

technical field [0001] The invention relates to a hearing protector, in particular to a graphene hearing protector. Background technique [0002] The hazards of noise and blast shock waves are becoming increasingly prominent in modern society. Typical diseases such as occupational noise-induced deafness are slow progressive sensorineural deafness due to the long-term impact of hearing on noise. The National Health and Family Planning Commission of the People's Republic of China issued the National Occupational Health Standard GBZ 49-2014 "Diagnosis of Occupational Noise Deafness" in 2014 (Guo Wei Tong [2014] No. 14). [0003] Noise is a threat to people's health. Noise can damage the auditory system of workers and soldiers and cause various neurological disorders and sequelae. Explosions of all kinds can cause drastic changes in the sound pressure in the air, overwhelming and overwhelming the human auditory system. These harmful noises can be roughly divided into two cate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F11/14C01B32/186
CPCA61F11/14C01B2204/02C01B2204/04
Inventor 杨霖张健伟曹国剑侯成宇李隆
Owner HARBIN INST OF TECH
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