CN204502180U - A kind of positive-pressure type breathing mask - Google Patents
A kind of positive-pressure type breathing mask Download PDFInfo
- Publication number
- CN204502180U CN204502180U CN201420580802.XU CN201420580802U CN204502180U CN 204502180 U CN204502180 U CN 204502180U CN 201420580802 U CN201420580802 U CN 201420580802U CN 204502180 U CN204502180 U CN 204502180U
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- China
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- cover body
- positive
- pressure type
- breathing mask
- type breathing
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Abstract
The utility model provides a kind of positive-pressure type breathing mask, mainly comprises cover body and check valve, cover body has air inlet, gas outlet, and check valve is equipped with at cover body gas outlet place, it is characterized in that: air inlet is positioned at the cover body left and right sides.The positive-pressure type breathing mask that the utility model provides, its advantage is: this face shield can carry out personalized design for different crowds, and based on ergonomic theory, comfortable wearing, solves the event that traditional individual protection formula face shield causes facial lesion.
Description
Technical field
The utility model relates to positive-pressure type breathing mask.
Background technology
Individual protection formula breathing mask, is mainly used in the place that working environment is more severe, if any factory, the workshop of smog, and has the tunnel etc. of larger dust, for the protection of individual respiratory system.Through investigation.
Many breathing protecting masks manufacturer of China still continues to use traditional sequence design production technology. and this production technology not only makes life cycle of the product long, and fund input is large. and be difficult in production process detect product.
The Zhang Jing of Wuhan University of Technology carries out Parameters Optimal Design based on hydrodynamics to self-priming face shield.But this self-priming face shield, user can feel effort, feeling oppressed, if even can produce sensation of asphyxia when respiratory rate is higher when breathing.
Summary of the invention
The purpose of this utility model is to provide a kind of pressure-fired ensureing face masks, makes people breathe breathing mask smoothly.
The utility model provides a kind of positive-pressure type breathing mask, mainly comprises cover body and check valve, cover body has air inlet, gas outlet, and check valve is equipped with at cover body gas outlet place, it is characterized in that: air inlet is positioned at the cover body left and right sides.
The positive-pressure type breathing mask that the utility model provides, centerline direction and the cover body plane of symmetry of its air inlet become to turn forward 75 ~ 85 °, become upwards 5 ~ 15 ° with horizontal plane, to obtain the optimum value at fluid deflector angle.
The positive-pressure type breathing mask that the utility model provides, its cover body gas outlet is equipped with on valve bonnet and/or cover body and has fixation kit, to protect check valve and to be convenient to wear.
The positive-pressure type breathing mask that the utility model provides, its cover body has a curved surface of fitting with face, not only seals but also comfortable to reach.
The positive-pressure type breathing mask that the utility model provides, has the boss of high 2 ~ 5mm around its check valve, in case valve block is blown open by extraneous gas.
The positive-pressure type breathing mask that the utility model provides, have the cruciform girder of thick 1 ~ 3mm in the middle of its check valve, valve block is equipped with at crossbeam center.
The positive-pressure type breathing mask that the utility model provides, its advantage is: this face shield can carry out personalized design for different crowds, and based on ergonomic theory, comfortable wearing, solves the event that traditional individual protection formula face shield causes facial lesion.
Accompanying drawing explanation
Fig. 1 is the structural representation of positive-pressure type breathing mask.
Detailed description of the invention
Embodiment 1
Positive-pressure type breathing mask, its structure as shown in Figure 1, comprise cover body 5 and check valve 3, cover body there is air inlet 1, gas outlet 2, check valve is installed at cover body gas outlet place, air inlet is positioned at the cover body left and right sides, centerline direction and the cover body plane of symmetry of air inlet become to turn forward 75 ~ 85 °, upwards 5 ~ 15 ° are become with horizontal plane, cover body gas outlet is equipped with on valve bonnet 4 and cover body and has fixation kit 7, cover body has a curved surface 6 of fitting with face, the boss of high 2 ~ 5mm is had around check valve, the cruciform girder of thick 1 ~ 3mm is had in the middle of check valve, valve block is equipped with at crossbeam center, be used for elastic cord is installed, face shield is fixed on head, close on the upside of valve bonnet, there are six steam vents downside, fixation kit is four boss.
Claims (10)
1. a positive-pressure type breathing mask, mainly comprises cover body and check valve, cover body has air inlet, gas outlet, and check valve is equipped with at cover body gas outlet place, it is characterized in that: air inlet is positioned at the cover body left and right sides.
2., according to positive-pressure type breathing mask according to claim 1, it is characterized in that: centerline direction and the cover body plane of symmetry of described air inlet become to turn forward 75 ~ 85 °, become upwards 5 ~ 15 ° with horizontal plane.
3. according to positive-pressure type breathing mask according to claim 1, it is characterized in that: described cover body gas outlet is equipped with on valve bonnet and/or cover body and has fixation kit.
4. according to positive-pressure type breathing mask according to claim 2, it is characterized in that: described cover body gas outlet is equipped with on valve bonnet and/or cover body and has fixation kit.
5. according to the positive-pressure type breathing mask one of Claims 1 to 4 Suo Shu, it is characterized in that: described cover body has a curved surface of fitting with face.
6. according to the positive-pressure type breathing mask one of Claims 1 to 4 Suo Shu, it is characterized in that: the boss having high 2 ~ 5mm around described check valve.
7. according to positive-pressure type breathing mask according to claim 5, it is characterized in that: the boss having high 2 ~ 5mm around described check valve.
8. according to the positive-pressure type breathing mask described in claim 1,2,3,4 or 7, it is characterized in that: the cruciform girder having thick 1 ~ 3mm in the middle of described check valve, valve block is equipped with at crossbeam center.
9. according to positive-pressure type breathing mask according to claim 5, it is characterized in that: the cruciform girder having thick 1 ~ 3mm in the middle of described check valve, valve block is equipped with at crossbeam center.
10. according to positive-pressure type breathing mask according to claim 6, it is characterized in that: the cruciform girder having thick 1 ~ 3mm in the middle of described check valve, valve block is equipped with at crossbeam center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420580802.XU CN204502180U (en) | 2014-10-09 | 2014-10-09 | A kind of positive-pressure type breathing mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420580802.XU CN204502180U (en) | 2014-10-09 | 2014-10-09 | A kind of positive-pressure type breathing mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204502180U true CN204502180U (en) | 2015-07-29 |
Family
ID=53700184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420580802.XU Active CN204502180U (en) | 2014-10-09 | 2014-10-09 | A kind of positive-pressure type breathing mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204502180U (en) |
-
2014
- 2014-10-09 CN CN201420580802.XU patent/CN204502180U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |