Protective mask

Protective mask

The protective mask comprises a first sealing cover, a second sealing cover and a filter element, the first sealing cover and the second sealing cover are each provided with an arch structure with aninward opening, and a first protective cavity covering the nose is formed in the inner side of the fi...

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Hauptverfasser: GUO SHUNPING, XIONG YINPING, LI LIANG
Format: Patent
Sprache:chi ; eng
Schlagworte:
ACCESSORIES
HUMAN NECESSITIES
OUTERWEAR
PROTECTIVE GARMENTS
WEARING APPAREL
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creator GUO SHUNPING
XIONG YINPING
LI LIANG
description The protective mask comprises a first sealing cover, a second sealing cover and a filter element, the first sealing cover and the second sealing cover are each provided with an arch structure with aninward opening, and a first protective cavity covering the nose is formed in the inner side of the first sealing cover; the second sealing cover is arranged outside the first sealing cover, and a second protection cavity covering the opening is formed between the second sealing cover and the exterior of the first sealing cover. The filter element is arranged between the outer side of the second sealing cover and the second sealing cover to form a filter cavity; the protective mask further comprises a first air inlet one-way valve, a first air outlet one-way valve, a second air inlet one-way valve and a second air outlet one-way valve, and the first air inlet one-way valve penetrates from the filter cavity to the first protective cavity and can be opened towards the first protective cavity;the first air outlet one-
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The filter element is arranged between the outer side of the second sealing cover and the second sealing cover to form a filter cavity; the protective mask further comprises a first air inlet one-way valve, a first air outlet one-way valve, a second air inlet one-way valve and a second air outlet one-way valve, and the first air inlet one-way valve penetrates from the filter cavity to the first protective cavity and can be opened towards the first protective cavity;the first air outlet one-</description><language>chi ; eng</language><subject>ACCESSORIES ; HUMAN NECESSITIES ; OUTERWEAR ; PROTECTIVE GARMENTS ; WEARING APPAREL</subject><creationdate>2019</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20191203&amp;DB=EPODOC&amp;CC=CN&amp;NR=209711604U$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20191203&amp;DB=EPODOC&amp;CC=CN&amp;NR=209711604U$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GUO SHUNPING</creatorcontrib><creatorcontrib>XIONG YINPING</creatorcontrib><creatorcontrib>LI LIANG</creatorcontrib><title>Protective mask</title><description>The protective mask comprises a first sealing cover, a second sealing cover and a filter element, the first sealing cover and the second sealing cover are each provided with an arch structure with aninward opening, and a first protective cavity covering the nose is formed in the inner side of the first sealing cover; the second sealing cover is arranged outside the first sealing cover, and a second protection cavity covering the opening is formed between the second sealing cover and the exterior of the first sealing cover. 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language chi ; eng
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subjects ACCESSORIES
HUMAN NECESSITIES
OUTERWEAR
PROTECTIVE GARMENTS
WEARING APPAREL
title Protective mask
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