CN201410242Y - Half face shield with high sealing performance - Google Patents
Half face shield with high sealing performance Download PDFInfo
- Publication number
- CN201410242Y CN201410242Y CN2009201723981U CN200920172398U CN201410242Y CN 201410242 Y CN201410242 Y CN 201410242Y CN 2009201723981 U CN2009201723981 U CN 2009201723981U CN 200920172398 U CN200920172398 U CN 200920172398U CN 201410242 Y CN201410242 Y CN 201410242Y
- Authority
- CN
- China
- Prior art keywords
- cover body
- demifacet cover
- half face
- face shield
- demifacet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
A half face shield with high sealing performance comprises a half face shield body which is provided with a filtering box, a breather valve and a sound transmitter. The inner side of the edge of the half face shield body is provided with a turning edge as the sealing layer of the half face mask and the mouth-nose part. A lace is provided on the half face shield body. The utility model is characterized in that the edge of the half face shield is connected with a skirt rim as a second sealing layer of the half face shield and the mouth-noise part. The edge of the half face shield adopts double-layer sealing thereby effectively improving the sealing effect.
Description
Technical field
The utility model relates to dustproof, breathing mask, dustproof specifically, gas defence demifacet cover.Be applicable to oil, chemical industry, urban construction, electric power, colliery, etc. any industry and place that breathing is had harm.
Background technology
Though existing breathing mask can prevent dust, gas defence, the contact-making surface of face shield and snout has only designed single sealant, and sealing is good inadequately.At present, because ecological deterioration, sandstorm happens occasionally, influenzas etc. are infested with various diseases, in addition, fire, a large amount of toxic and harmfuls that industrial production produced are all taking place at any time to the mankind's injury, and the demifacet cover of above-mentioned single sealant can not satisfy instructions for use.
The utility model content
The applicant's imperfect problem of sealing dustproof at having now, that gas mask exists is made improvement, and a kind of demifacet cover of high leakproofness is provided.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
The demifacet cover of high leakproofness, comprise the demifacet cover body, device has the filter box on the demifacet cover body, device has inlet valve in the filter box, and returning apparatus has outlet valve and sound-conducting apparatus on the demifacet cover body, and there is the flanging that contacts with people's face the inboard at demifacet cover body edge, sealant as demifacet cover and snout, on the demifacet cover body frenulum is installed, it is characterized in that the edge of described demifacet cover body also is connected with the shirt rim that contacts with people's face, as second sealant of demifacet cover and snout.
Further, shirt rim and demifacet cover body that described demifacet cover body edge connects are one, being shaped as and the people face position of the mouth and nose periphery shape of applying closely of shirt rim.
Technique effect of the present utility model is:
The utility model adopts the double-layer seal limit: there is the flanging that contacts with people's face the inboard at demifacet cover body edge, sealant as demifacet cover and snout, the edge of demifacet cover body also is connected with the shirt rim that contacts with people's face, second sealant as demifacet cover and snout, and have good stickiness, thereby effectively improved sealing effectiveness.
Description of drawings
Fig. 1 is the front view of the utility model assembly structure;
Fig. 2 is Fig. 1 rearview.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further described.
See Fig. 1, Fig. 2, the utility model comprises demifacet cover body 3, demifacet cover body 3 adopts medical natural silica gel material injection molded, demifacet cover body 3 device filter boxes 4, device has inlet valve in the filter box 4, returning apparatus has outlet valve 5 and sound-conducting apparatus 2 on the demifacet cover body 3, there is the flanging 6 that contacts with people's face the inboard at demifacet cover body 3 edges, flanging 6 is as the sealant of demifacet cover and snout, the edge of demifacet cover body 3 also is connected with the shirt rim 1 that contacts with people's face, as second sealant of demifacet cover and snout, make the demifacet cover body have better sealing.Shirt rim 1 and demifacet cover body 3 that described demifacet cover body 3 edges connect are one, being shaped as and the close shape of fitting in the people face position of mouth and nose periphery of shirt rim 1, demifacet cover body 3 is near shirt rim 1 broad around the part flanging 6 of lower jaw, can be good at holding lower jaw, seal more tightly, demifacet cover body 3 is more and more narrow from bottom to top near the shirt rim width around the part flanging 6 of noses; Demifacet cover body 3 is not established shirt rim 1 near the edge of the cover body 3 of bridge of the nose part, because demifacet cover body 3 is fitted closely at the flanging 6 of nose, can play good sealing function; On the demifacet cover body 3 frenulum is installed.Demifacet cover body 3 also can not be provided with sound-conducting apparatus, and this moment, hermetically-sealed construction was identical with the above.
The course of work of the present utility model: because the sealing function of the first sealant flanging 6 and the second sealant shirt rim 1 is arranged, make outside pernicious gas not enter in the cover body, and can only breathe by breather valve by the contact site of demifacet cover and people's face.When air-breathing, the inlet valve in the filter box 4 is opened under suction function, and people's physical efficiency sucks the clean gas that logical filter cartridge 4 filters, and outlet valve 5 cuts out under suction function; During expiration, inlet valve cuts out under positive pressure, and outlet valve 5 is opened, exhalation waste gas, and going round and beginning again sucks the normal need that clean gas has satisfied human body.
Claims (2)
1. the demifacet cover of high leakproofness, comprise demifacet cover body (3), demifacet cover body (3) is gone up device filter box (4), device has inlet valve in the filter box (4), demifacet cover body (3) is gone up returning apparatus outlet valve (5) and sound-conducting apparatus (2), there is the flanging (6) that contacts with people's face the inboard at demifacet cover body (3) edge, sealant as demifacet cover and snout, the demifacet cover body is equipped with frenulum on (3), the edge that it is characterized in that described demifacet cover body (3) also is connected with the shirt rim (1) that contacts with people's face, as second sealant of demifacet cover and snout.
2. according to the demifacet cover of the described high leakproofness of claim 1, it is characterized in that the shirt rim (1) that described demifacet cover body (3) edge connects is one with demifacet cover body (3), being shaped as and the shape fitted closely in the people face position of mouth and nose periphery of shirt rim (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201723981U CN201410242Y (en) | 2009-06-09 | 2009-06-09 | Half face shield with high sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201723981U CN201410242Y (en) | 2009-06-09 | 2009-06-09 | Half face shield with high sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201410242Y true CN201410242Y (en) | 2010-02-24 |
Family
ID=41712134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201723981U Expired - Lifetime CN201410242Y (en) | 2009-06-09 | 2009-06-09 | Half face shield with high sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201410242Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041523A (en) * | 2011-10-11 | 2013-04-17 | 优维斯劳动保护有限公司 | Respirator mask |
| CN103816599A (en) * | 2014-03-14 | 2014-05-28 | 宁波圣宇瑞医疗器械有限公司 | Medical mask |
| CN109908448A (en) * | 2017-12-12 | 2019-06-21 | 张红丹 | A kind of bacterial virus filter mask |
-
2009
- 2009-06-09 CN CN2009201723981U patent/CN201410242Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041523A (en) * | 2011-10-11 | 2013-04-17 | 优维斯劳动保护有限公司 | Respirator mask |
| CN103041523B (en) * | 2011-10-11 | 2015-10-07 | 优维斯劳动保护有限公司 | Respiratory protection face shield |
| CN103816599A (en) * | 2014-03-14 | 2014-05-28 | 宁波圣宇瑞医疗器械有限公司 | Medical mask |
| CN109908448A (en) * | 2017-12-12 | 2019-06-21 | 张红丹 | A kind of bacterial virus filter mask |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100224 |