CN207323875U - A kind of special oronasal mask of fire-fighting head-shield - Google Patents
A kind of special oronasal mask of fire-fighting head-shield Download PDFInfo
- Publication number
- CN207323875U CN207323875U CN201721282944.8U CN201721282944U CN207323875U CN 207323875 U CN207323875 U CN 207323875U CN 201721282944 U CN201721282944 U CN 201721282944U CN 207323875 U CN207323875 U CN 207323875U
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- CN
- China
- Prior art keywords
- cover body
- nasal cavity
- air filtration
- fire
- filtration pipe
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Abstract
It the utility model is related to a kind of fire-fighting equipment, especially a kind of special oronasal mask of fire-fighting head-shield, it includes cover body, holds nasal cavity, ventilation lumen, exhaust tube and air filtration pipe, the appearance nasal cavity for being used for accommodating human body snout is equipped with the middle part of the cover body, the calm nasal cavity of cover body is progressively thinning to neighboring, and ventilation lumen, the appearance nasal cavity lower end connection ventilation lumen are formed in the cover body rear portion, the ventilation cavity rear end is equipped with air filtration pipe, and the ventilation lumen lower end is equipped with exhaust tube；The calm nasal cavity of cover body is progressively thinning to neighboring, it, which is acted on, is so that cover body center can have enough intensity to keep shape, is fully bonded human body snout, periphery then has the change that stronger deformability adapts to all kinds of people's shapes of face；Outlet valve and canister are connected respectively using exhaust tube and air filtration pipe, and the oxidizing ferment in canister can be by Oxidation of Carbon Monoxide into carbon dioxide, the probability of anthracemia when greatly reducing fire disaster escaping.
Description
Technical field
A kind of fire-fighting equipment is the utility model is related to, especially a kind of special oronasal mask of fire-fighting head-shield.
Background technology
In fire-fighting head-shield or mask, due to the seal for needing to ensure respiration, prevent the dense smoke in fire or have
Poisonous gas enter human respiratory, generally require by oronasal mask to set up the connection between mouth and nose and air filter.
Existing oronasal mask is generally made of rigid plastics or soft rubber is made and air filter generally uses spiral shell
Connect, using rigid plastics oronasal mask wearing after can be very uncomfortable, using soft rubber oronasal mask then exist easily with filter
The problem of device of air departs from.
The content of the invention
In view of the deficiencies of the prior art, the utility model provide it is a kind of dress it is comfortable and be not easy and air filter depart from
Oronasal mask.
The technical solution of the utility model is：
A kind of special oronasal mask of fire-fighting head-shield, it is characterised in that：It includes cover body, holds nasal cavity, ventilation lumen, exhaust tube and filter
Tracheae, is equipped with the appearance nasal cavity for being used for accommodating human body snout in the middle part of the cover body, the calm nasal cavity of cover body to neighboring by
Walk thinning, it, which is acted on, is so that cover body center can have enough intensity to keep shape, is fully bonded human body snout, periphery is then
The change of all kinds of people's shapes of face is adapted to stronger deformability；Ventilation lumen is formed in the cover body rear portion, it is described to hold under nasal cavity
End connection ventilation lumen, the ventilation cavity rear end are equipped with air filtration pipe, and the ventilation lumen lower end is equipped with exhaust tube.
The air filtration pipe connects canister, and the exhaust tube connects outlet valve.
The air filtration pipe periphery is provided with concave ring, and the outer wall of the canister insertion air filtration pipe inside points coordinates concave ring to set
There is annular groove, use the lantern ring that canister and air filtration pipe is affixed outside the concave ring.It is to prevent canister and oronasal mask from departing from that it, which is acted on,.
The outlet valve can use check valve to replace.
The beneficial effects of the utility model are：The calm nasal cavity of cover body is progressively thinning to neighboring, its effect is to make
Obtaining cover body center can have enough intensity to keep shape, fully be bonded human body snout, periphery then has stronger deformation energy
Power adapts to the change of all kinds of people's shapes of face；Outlet valve and canister are connected respectively using exhaust tube and air filtration pipe, the oxygen in canister
Changing enzyme can be by Oxidation of Carbon Monoxide into carbon dioxide, the probability of anthracemia when greatly reducing fire disaster escaping.
Brief description of the drawings
Fig. 1 is the main structure diagram of the utility model；
Fig. 2 is the side cutaway view of the utility model.
In figure, 1, cover body；2nd, nasal cavity is held；3rd, ventilation lumen；4th, exhaust tube；5th, air filtration pipe.
Embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As illustrated in fig. 1 and 2, a kind of special oronasal mask of fire-fighting head-shield, it includes cover body 1, holds nasal cavity 2, ventilation lumen 3, exhales
Pipe 4 and air filtration pipe 5, the middle part of cover body 1 are equipped with the appearance nasal cavity 2 for being used for accommodating human body snout, the calm nasal cavity 2 of cover body 1
It is progressively thinning to neighboring, ventilation lumen 3 is formed in 1 rear portion of cover body, connection ventilation lumen 3 in 2 lower end of the appearance nasal cavity is described
3 rear end of ventilation lumen is equipped with air filtration pipe 5, and 3 lower end of ventilation lumen is equipped with exhaust tube 4.
The air filtration pipe 5 connects canister, and the exhaust tube 4 connects outlet valve.
5 periphery of air filtration pipe is provided with concave ring, and the outer wall of 5 inside points of canister insertion air filtration pipe coordinates concave ring to set
Annular groove is equipped with, uses the lantern ring that canister and air filtration pipe 5 is affixed outside the concave ring.Its effect is to prevent canister and oronasal mask from taking off
From.
The outlet valve can use check valve to replace.
The description of the embodiments and the specification only illustrate the principle of the present utility model and most preferred embodiment, is not taking off
On the premise of the spirit and scope of the utility model, the utility model also has various changes and modifications, these changes and improvements
Both fall within claimed the scope of the utility model.
Claims (4)
- A kind of 1. special oronasal mask of fire-fighting head-shield, it is characterised in that：It includes cover body, holds nasal cavity, ventilation lumen, exhaust tube and air filtration Pipe, is equipped with the appearance nasal cavity for being used for accommodating human body snout in the middle part of the cover body, the calm nasal cavity of cover body to neighboring progressively It is thinning, ventilation lumen, the appearance nasal cavity lower end connection ventilation lumen are formed in the cover body rear portion, the ventilation cavity rear end is equipped with air filtration Pipe, the ventilation lumen lower end is equipped with exhaust tube.
- 2. the special oronasal mask of fire-fighting head-shield according to claim 1, it is characterised in that：The air filtration pipe connects canister, The exhaust tube connects outlet valve.
- 3. the special oronasal mask of fire-fighting head-shield according to claim 2, it is characterised in that：The air filtration pipe periphery is provided with recessed Ring, the outer wall of the canister insertion air filtration pipe inside points are coordinated concave ring to be provided with annular groove, will be filtered using the lantern ring outside the concave ring Malicious tank and air filtration pipe are affixed.
- 4. the special oronasal mask of fire-fighting head-shield according to claim 3, it is characterised in that：The outlet valve can use check valve Instead of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721282944.8U CN207323875U (en) | 2017-10-01 | 2017-10-01 | A kind of special oronasal mask of fire-fighting head-shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721282944.8U CN207323875U (en) | 2017-10-01 | 2017-10-01 | A kind of special oronasal mask of fire-fighting head-shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207323875U true CN207323875U (en) | 2018-05-08 |
Family
ID=62366962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721282944.8U Active CN207323875U (en) | 2017-10-01 | 2017-10-01 | A kind of special oronasal mask of fire-fighting head-shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207323875U (en) |
-
2017
- 2017-10-01 CN CN201721282944.8U patent/CN207323875U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |