CN2076834U - 多功能抗噪声耳罩 - Google Patents

多功能抗噪声耳罩 Download PDF

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Publication number
CN2076834U
CN2076834U CN90214442U CN90214442U CN2076834U CN 2076834 U CN2076834 U CN 2076834U CN 90214442 U CN90214442 U CN 90214442U CN 90214442 U CN90214442 U CN 90214442U CN 2076834 U CN2076834 U CN 2076834U
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China
Prior art keywords
earmuff
noise
ear cover
antinoise
sound
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CN90214442U
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English (en)
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曹永生
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Individual
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Individual
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Priority to CN90214442U priority Critical patent/CN2076834U/zh
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F11/00Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
    • A61F11/06Protective devices for the ears
    • A61F11/14Protective devices for the ears external, e.g. earcaps or earmuffs

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Acoustics & Sound (AREA)
  • Biophysics (AREA)
  • Otolaryngology (AREA)
  • Psychology (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Headphones And Earphones (AREA)

Abstract

多功能抗噪声耳罩,由耳罩外壳、密封圈、吸音材 料以及弹性耳罩攀组成,耳罩外壳中装有微型收音装 置和喇叭。用发射装置发射音乐信号,在噪声环境中 的操作工人佩带本耳罩,一可以通过密封、吸音等措 施,使噪声下降,二可以通过收听乐曲,覆盖残留噪 声,由于有较大的信噪比而具备抗噪作用,如果将发 射机播送的乐曲改为播送讲话,本耳罩又具有受话功 能,可以用于生产指挥管理。

Description

本实用新型属于降噪声技术。
在纺织、冶金、航空、机械等行业中,操作环境中的工业噪声对人体健康有极大的危害性,有的甚至引起神经衰弱、职业性耳聋等疾病,为此出现各种降噪技术。
与本实用新型最相接近的现有技术是市面上出售的防噪声耳罩,其结构如图一所示。其主要由耳罩外壳1、密封圈2、吸音材料3以及弹性耳罩攀4组成,密封圈2与耳朵紧贴,这种耳罩从两方面来降低噪声:一是通过外壳1和密封圈2来隔离噪声,使传入耳中的噪声大大减少;二是通过吸音材料3进一步吸收漏入耳罩中的噪声,使噪声进一步减弱。这种防噪耳罩对防止噪声有一定作用,但不具有抗噪声作用。
本实用新型的目的是设计一种具有防噪和抗噪功能的耳罩,而且兼具受话功能。
本实用新型的解决方案是在现有的防噪耳罩中装置微小型电信号接收机以及电动喇叭,在离防噪耳罩一定距离,用专门的电信号发射机放送乐曲信号,耳罩中的电信信号接收机接收乐曲信号,电动喇叭发出的音乐声覆盖传入耳机的残留噪声,造成较高的信噪比。
在噪声环境中的操作者佩戴上述耳罩,由于乐曲信号强度大大高于漏入耳机的噪声强度,因此操作者听见的是乐曲声,而不是噪声,当音调音量调在合适范围,美妙的乐曲对人体有益,从而大大减少了噪声对人体的危害。在防噪声耳罩中装入电信号接收机和电动喇叭后,不单纯是能让操作者听见乐曲,而且产生了让乐曲覆盖噪声,造成较高信噪比以及减弱噪声危害的新效果,使本实用新型不但有防噪声功能,而且具有抗噪声功能。如果让电信号发射机播放乐曲改为播送讲话,发布生产指挥信号,则本实用新型又具有受话功能,可以用于生产指挥管理。
图2是本实用新型正视图,并作为摘要附图,其中耳罩壳内部结构进行局部剖视。
图2中,5为耳罩外壳,6为密封圈,7为吸音材料,8为弹性耳罩攀。密封圈6用来阻挡噪声漏入耳罩,固定在耳罩外壳5上,佩戴时与耳朵紧贴,吸音材料7安装在耳罩外壳5的左右内侧,弹性耳罩攀8连结两只耳罩外壳,本实用新型的特征在于耳罩外壳5中安装有微型电信号接收装置9以及电动喇叭10。作为本实用新型的典型实施例,微型电信号接收装置9用大规模集成收音电路CXA1019M组成调频接收机,电动喇叭放送接收的乐曲。

Claims (2)

1、多功能抗噪声耳罩,由耳罩外壳5、密封圈6、吸音材料7以及弹性耳罩攀8组成,密封圈6固定在耳罩外壳5上,吸音材料7安装在耳罩外壳5的左右内侧,弹性耳罩攀8分别与两只耳罩外壳5相连结,其特征在于耳罩壳5中装置有微型电信号接收装置9以及电动喇叭10。
2、按权利要求1所述的抗噪声耳罩,其特征在于耳罩外壳5中装置的微型电信号接收装置9是用大规模集成收音电路CXA1019M组装调频接收机。
CN90214442U 1990-08-14 1990-08-14 多功能抗噪声耳罩 Withdrawn CN2076834U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN90214442U CN2076834U (zh) 1990-08-14 1990-08-14 多功能抗噪声耳罩

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN90214442U CN2076834U (zh) 1990-08-14 1990-08-14 多功能抗噪声耳罩

Publications (1)

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CN2076834U true CN2076834U (zh) 1991-05-15

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CN90214442U Withdrawn CN2076834U (zh) 1990-08-14 1990-08-14 多功能抗噪声耳罩

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CN (1) CN2076834U (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100418500C (zh) * 2004-06-16 2008-09-17 霍华德莱特工业有限责任公司 用作听力保护装置的耳罩及其生产方法
CN103024620A (zh) * 2011-09-28 2013-04-03 东莞市奥莱克电子有限公司 有源抗噪耳机
CN105125346A (zh) * 2015-07-23 2015-12-09 宁波吉欧光电科技有限公司 智能型电子防护耳罩
RU2713042C1 (ru) * 2016-06-29 2020-02-03 3М Инновейтив Пропертиз Компани Способ модификации устройства для защиты органов слуха и устройство для защиты органов слуха

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100418500C (zh) * 2004-06-16 2008-09-17 霍华德莱特工业有限责任公司 用作听力保护装置的耳罩及其生产方法
CN103024620A (zh) * 2011-09-28 2013-04-03 东莞市奥莱克电子有限公司 有源抗噪耳机
CN105125346A (zh) * 2015-07-23 2015-12-09 宁波吉欧光电科技有限公司 智能型电子防护耳罩
RU2713042C1 (ru) * 2016-06-29 2020-02-03 3М Инновейтив Пропертиз Компани Способ модификации устройства для защиты органов слуха и устройство для защиты органов слуха
US10561532B2 (en) 2016-06-29 2020-02-18 3M Innovative Properties Company Method of retrofitting a hearing protector, and a hearing protector

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