Title:
DISPOSABLE AUTOMATIC INFLATABLE NOISE REDUCTION HELMET
Document Type and Number:
WIPO Patent Application WO/2022/127685
Kind Code:
A1
Abstract:
A disposable automatic inflatable noise reduction helmet, comprising a balloon composed of several plastic balloon units (2) and at least one automatic inflation device (4); each balloon unit (2) has a polygonal structure, and each balloon unit (2) is connected to other surrounding balloon units (2) of polygonal structures; each balloon unit (2) has several layers; the automatic inflation device (4) is arranged in an inflation unit connected to the balloon units (2), and the gas in the automatic inflation device (4) enters the balloon units (2) from the inflation unit to inflate the balloon, so as to form a sound-insulation and noise-reduction helmet; the helmet has a hat shape as a whole, and comprises helmet earflaps covering both ears and a helmet back portion covering the back of the skull; and the balloon is provided with a gas vent. The noise reduction helmet can fit and wrap around both ears and the back of the skull of the human body, and effectively reduce air conduction and bone conduction of noise, is convenient to carry, and has a good noise reduction effect, and can meet the usage requirements of noise reduction in life scenes.
Inventors:
ZHAO YUANJIN (CN)
BIAN FEIKA (CN)
WANG YUETONG (CN)
CHI JUNJIE (CN)
ZHANG DAGAN (CN)
BIAN FEIKA (CN)
WANG YUETONG (CN)
CHI JUNJIE (CN)
ZHANG DAGAN (CN)
Application Number:
PCT/CN2021/136764
Publication Date:
June 23, 2022
Filing Date:
December 09, 2021
Export Citation:
Assignee:
NANJING DRUM TOWER HOSPITAL (CN)
International Classes:
A42B3/04; A42B3/16
Foreign References:
| GB2340381A | 2000-02-23 | |||
| CN110239477A | 2019-09-17 | |||
| CN214072006U | 2021-08-31 | |||
| CN112450541A | 2021-03-09 | |||
| CN210591779U | 2020-05-22 | |||
| CN111631478A | 2020-09-08 | |||
| US20130061376A1 | 2013-03-14 |
Attorney, Agent or Firm:
NANJING ZHONGSHAN PATENT AGENT CO., LTD. (CN)
Download PDF: