Title:
DYNAMIC SEALING RESPIRATORY PROTECTION MASK
Document Type and Number:
WIPO Patent Application WO/2022/078212
Kind Code:
A1
Abstract:
A dynamic sealing respiratory protection mask, comprising a main housing (1), a filtering unit (2) and a sealing unit (3), and further comprising at least one elastic unit (4) capable of making contact with an opening area (33) of the sealing unit, wherein one end of the elastic unit (4) is connected to the main housing (1), and the other end of the elastic unit is connected to the sealing unit (3); when a user closes their mouth, a mandibular joint is closed, the skin of a mouth area of the face makes close contact with the opening area (33) of the sealing unit of the main housing due to the tension of a tying belt (B), and the elastic unit (4) is pressed by the corresponding part of the opening area (33) of the sealing unit to deform and/or displace same and elastically store energy; and during opening, the mandibular joint is opened to drive the skin of the mouth area of the face to move downwards and backwards, compression on the elastic unit (4) is partially relieved, elastic potential energy is released, and the elastic unit (4) deforms and/or displaces reversely to drive the opening area (33) of the sealing unit to move downwards and backwards synchronously, thereby dynamically sealing the skin of the mouth area of the face.
Inventors:
DONG DONGSHENG (CN)
Application Number:
PCT/CN2021/121551
Publication Date:
April 21, 2022
Filing Date:
September 29, 2021
Export Citation:
Assignee:
BEIJING YANGSHENG HENGTAI TECH CO LTD (CN)
International Classes:
A62B18/02
Domestic Patent References:
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Foreign References:
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