CN2145597Y - 多阻尼防噪音耳塞 - Google Patents

多阻尼防噪音耳塞 Download PDF

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Publication number
CN2145597Y
CN2145597Y CN92215956U CN92215956U CN2145597Y CN 2145597 Y CN2145597 Y CN 2145597Y CN 92215956 U CN92215956 U CN 92215956U CN 92215956 U CN92215956 U CN 92215956U CN 2145597 Y CN2145597 Y CN 2145597Y
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earplug
damping fin
damping
ear
cylinder
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CN92215956U
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吴明道
沈南光
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沈青
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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
    • A61F11/08Protective devices for the ears internal, e.g. earplugs

Abstract

一种由三层阻尼片,二层声波破坏区共同组成的 多阻尼防噪音耳塞,它的三层阻尼片依其直径不同并 与耳塞柱体间隔成一体。耳塞连线与耳塞,制成一 体,固定连接。耳塞上套有助戴套管,可帮助耳塞第 一层阻尼片推入耳朵。耳塞材料为具有吸声功能的 弹性材料。

Description

本实用新型涉及一种防噪音耳塞
目前公知的普通型耳塞,均为单阻尼耳塞,它的缺点是:由于声波的传递性强,而耳塞与耳朵之间具有不可避免的缝隙,再加上耳塞材料本身的吸声能力受到限制,所以防声音传入效果不佳。
本实用新型的目的是利用多阻尼破坏声波,吸收音量,降低声级的技术,提供一种多阻尼防噪音耳塞。
本实用新型的目的是这样实现的,在已有普通耳塞的基础上,增加二片阻尼片,使阻尼片达到三片,或称为三层,三层阻尼片的直径不同,间隔距离相等,阻尼片与耳塞柱体为同一材料一体制成,入耳朵的为第一层阻尼片,阻尼片直径第一层最小,最外层最大,三层尼片之间为二个声波破坏区,一付耳塞为左右两只,左耳塞与右耳塞之间有一与耳塞固定连接的连接线,一空心套管在线上作为耳塞的助戴套管,并可在耳塞柱体上轴向滑动,耳塞材料为具有吸声功能的弹性材料,它的防噪音原理是:由于阻尼片直径不同,最外层直径最大,所以当声音传入耳朵时,经过三层不同直径的阻尼片阻抗,使声音强度降低,又由于三层阻尼片之间形成二个固定体积的声波破坏区,所以每通过一层阻尼片后的声音波将在这二个声波破坏区内遭到破坏,使声波强度再次降低,通过上述多阻尼破坏与阻抗声波,可使传入耳朵的声波较最外面的声波强度大为降低,达到安全、平静的目的。
由于采用上述方案,可使强音通入耳朵的能级大大降低。多阻尼防噪音耳塞的结构比较简单易制造。
下面结合附图对本实用新型作进一步说明。
图1是本实用新型的结构与外形图
图中:1.里层阻片,2.中间层阻尼片,3.外层阻尼片,4.耳塞连线,用于左耳塞与右耳塞之间的连接,5.助戴套管,6.耳塞柱体。
图1中,所有阻尼片与耳塞柱体均为相同的、具有吸声功能的弹性材料,耳塞连线将左、右耳塞在制造过程中连接在一起,助戴套管套在耳塞柱体上可自由移动从左耳塞到右耳塞,使用时用手扶助戴管将耳塞推入耳朵内,使耳塞里层阻尼片嵌在耳朵内弹性张紧。

Claims (3)

1、一种多阻尼防噪音耳塞,其特征是:三层阻尼片由三层直径不同的圆形阻尼片等间距组成,并与耳塞柱体为一体材料一体制成。
2、根据权利要求1所述的多阻尼防噪音耳塞,其特征是:左耳塞与右耳塞之间有一与耳塞固定连接的连接线,一空心套管套在线上作为耳塞的助戴套管,并可在耳塞柱体上轴向滑动。
3、根据权利要求1所述的多阻尼防噪音耳塞,其特征是:耳塞材料为具有吸声功能的弹性材料。
CN92215956U 1992-08-05 1992-08-05 多阻尼防噪音耳塞 Expired - Fee Related CN2145597Y (zh)

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CN92215956U CN2145597Y (zh) 1992-08-05 1992-08-05 多阻尼防噪音耳塞

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Application Number Priority Date Filing Date Title
CN92215956U CN2145597Y (zh) 1992-08-05 1992-08-05 多阻尼防噪音耳塞

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CN2145597Y true CN2145597Y (zh) 1993-11-10

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CN92215956U Expired - Fee Related CN2145597Y (zh) 1992-08-05 1992-08-05 多阻尼防噪音耳塞

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110582049A (zh) * 2018-06-08 2019-12-17 西万拓私人有限公司 用于制造听力装置的部件的方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110582049A (zh) * 2018-06-08 2019-12-17 西万拓私人有限公司 用于制造听力装置的部件的方法
CN110582049B (zh) * 2018-06-08 2021-03-09 西万拓私人有限公司 用于制造听力装置的部件的方法

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