CN2241000Y - Chemical oxygen supply type mask for rescuing from fire - Google Patents
Chemical oxygen supply type mask for rescuing from fire Download PDFInfo
- Publication number
- CN2241000Y CN2241000Y CN 95204625 CN95204625U CN2241000Y CN 2241000 Y CN2241000 Y CN 2241000Y CN 95204625 CN95204625 CN 95204625 CN 95204625 U CN95204625 U CN 95204625U CN 2241000 Y CN2241000 Y CN 2241000Y
- Authority
- CN
- China
- Prior art keywords
- oxygen supply
- airbag
- valve
- fire disaster
- chemical oxygen
- 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 - Fee Related
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model relates to a chemical oxygen supply type mask for rescuing from fire, which comprises a head cap (1), an eye window (2), a half face mask (3), a protective shield (6), an air bag (7), an air discharge valve (8), an initiating device (9), an oxygen generation jar (10), a headband, a head band (11) and an exhalation valve (12). The oxygen generation jar (10) is arranged on both sides of the half face mask (3). An expiratory valve (5) is arranged on the oxygen generation jar (10). The air bag (7) is provided with the air discharge valve (8) and the initiating device (9). The utility model has the advantages of compact structure, small size, light weight, good effect of flame resistance and radiation resistance and low cost.
Description
The utility model relates to a kind of security against fire apparatus, especially a kind of chemical oxygen supply formula escape mask.
Along with rapid development of economy; each metropolitan skyscraper also constantly rises; when breaking out of fire; produce a large amount of smog and poison gas; as carbon monoxide; methacrylaldehyde; hydrogen cyanide and hydrogen chloride etc.; skyscraper does not resemble one-storey house or lower building and might go out Huo Qu because of story height, runs down from high building; generally need withdrawing the time of 10-15MIN; do not have suitable respirator, will seldom might withdraw from the boundless and indistinct fire zone of smog, install an air-conditioner owing to the skyscraper majority in addition; window is closed; when fire takes place, very possible anoxic simultaneously, the filter-type mask often don't work; but must be by means of the fire mask of oxygen supply formula; just might go out fire zone or etc. fire fighter's rescue, though developed countries has and utilizes the closed circuit type respirator of chemical oxygen supply as oxygen source, be mainly used in rescue or self-rescue of miner; it is big that these products exist volume; Heavy Weight, the price height does not protect flame and the width of cloth is penetrated shortcomings such as heat.
It is little that the purpose of this utility model provides a kind of volume, in light weight, easy to use, safe and reliable, the closed circuit type chemistry oxygen supply formula fire disaster escaping mask that cost is low.
Structure of the present utility model comprises head-shield (1), eye window (2), demifacet cover (3), breather valve (5), protective cover (6), airbag (7), air bleeding valve (8), starting device (9), oxygen generator (10), headband and head hoop (11), inlet valve (12); oxygen generator (10) is fixed between demifacet cover (3) and the airbag (7) by clip (4); inlet valve (12) is located at the both sides of demifacet cover (3); outlet valve (5) places on the oxygen generator (10), has air bleeding valve (8) and starting device (9) on the airbag (7).
Oxygen generator of the present utility model directly is enclosed between airbag and the demifacet cover, does not establish tube connector, compact conformation, reasonable, and volume is little, has reduced respiratory resistance; Air bleeding valve and inlet valve are the same structure valve, improve the versatility of parts; Oxygen generator is that the living again oxygen of absorbing carbon dioxide does not need to establish oxygen source in addition, and is in light weight; Usefulness flame-resistant high-temperature-resistant materials such as airbag protective sleeve are made, and fire resistant, the width of cloth are penetrated effective; Cost is lower, is beneficial to popularization and application.
Below in conjunction with drawings and Examples structure of the present utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a gas circuit circulation schematic diagram of the present utility model.
Fig. 3 is an oxygen generator structural representation of the present utility model.
By accompanying drawing as can be known; structure of the present utility model comprises head-shield (1); eye window (2); demifacet cover (3); breather valve (5); protective cover (6); airbag (7); air bleeding valve (8); starting device (9); oxygen generator (10); headband and head hoop (11); inlet valve (12); oxygen generator (10) is fixed between demifacet cover (3) and the airbag (7) by clip (4); KO2 sheet oxygen generating agent (5) is housed in the oxygen generator; when people's expiration enters in the medicinal cupping through demifacet cover (3), steam wherein and carbon dioxide and potassium superoxide oxygen generating agent (15) reaction sponge carbon dioxide and generate oxygen for people's besoin de respirer.Oxygen generator (10) is the thin medicine layer cylindrical can of diameter greater than height, to reduce respiratory resistance.Potassium superoxide medicine layer top and bottom in oxygen generator (10), respectively, on porous barrier (12) and glass separation layer, bond, keep air-flow unimpeded to stop oxygen generating agent KO2 (15) with a small amount of calcium hydroxide grain of one deck (14), reduce respiratory resistance, also absorb amounts of carbon dioxide simultaneously.Demifacet cover (3) is provided with back-up ring and has the adapter sleeve of groove, utilizes clip (4) that oxygen generator (10) is fixedly secured and does not come off.Inlet valve (12) is located at the both sides of demifacet cover (3), air bleeding valve (8) is located on the airbag (7), and its structure is the same, and the valve direction is opposite during installation, improve the versatility of parts, inlet valve appearance and size is little, because the both sides air inlet, air velocity is little, aeration resistance is very little, purified oxygen in inlet valve enters airbag, concentration of carbon dioxide in rare demifacet cover (3) dead space can be reduced to about 1.0%.Outlet valve (5) is located at the top of oxygen generator (10); cover valve block with the rubber protective cover (6) that is enclosed within on the oxygen generator (10); form expiration valve body (16); protective cover (6) can protect valve block can the contraction of airbag (7) not break it when air-breathing, protective cover (6) but make with the rubber of 180 ℃ of heatproofs.Giving birth to the oxygen initial stage for guaranteeing oxygen generating agent, enough oxygen is arranged in the airbag, in the pouch of the inboard of airbag, can establish a small-sized starting device, generating oxygen, directly sent in the airbag (7) by sebific duct, for people's initial stage besoin de respirer, starting device (9) is arranged on the airbag (7), reliable operation, the not side of occupation of land.Airbag (7) is made with the heatproof polyvinyl chloride film, or makes with the neoprene cloth of good flame resistance, for the scratch resistant and anti-width of cloth is penetrated heat, and airbag (7) outer cover last layer aluminium foil sheet.Headgear (1) is made by the compound layer of aluminum Membrane cover of fire-retardant textile cloth.
This device is encapsulated in the circular pop can container at ordinary times, be placed on the indoor part of obviously and easily getting, when fire takes place, the easy-to-draw lid above the container opened, the taking-up mask launches, headgear (10) is covered on the head, aim at the mouth and nose place, pull down the stay cord that ties down pin of starting device (9) then with hand with handgrip demifacet cover (3), starting device (9) promptly causes gives birth to oxygen, headband and strap (11) tension, get final product oxygen in the breathing mask again, safety is escaped from fire zone.The people sucks the oxygen that starting device (9) is produced earlier in when beginning in respiratory, and when waiting oxygen generator (10) temperature to rise to the normal oxygen supply of oxygen generating agent (needing 0.5-1MIN), the oxygen that then relies on oxygen generator (10) to be produced is kept people's besoin de respirer.The tidal air of mask is passed by journey: the people breathes out and contains steam and carbon dioxide air, enter in the oxygen generator (10) through demifacet cover (30), generate oxygen with oxygen generating agent KO2 effect, sponge steam and carbon dioxide, and, enter airbag (7) through outlet valve (5) with expiratory airflow, when the people is air-breathing, oxygen sucks human body through inlet valve (12), demifacet cover (3) in the airbag (7), and when the oxygen generating capacity surpasses people's besoin de respirer, unnecessary oxygen is discharged through air bleeding valve (8).Because airbag (7) volume is bigger, storage oxygen is many, so the exhaust number of times is few, coefficient of oxygen utilization can reach 70%.Head-shield (1), airbag (7) are all foldable.
Claims (7)
1. chemical oxygen supply formula fire disaster escaping mask; comprise head-shield (1), eye window (2), demifacet cover (3), breather valve (5), protective cover (6), airbag (7), air bleeding valve (8), starting device (9), oxygen generator (10), headband and head hoop (11), inlet valve (12); it is characterized in that oxygen generator (10) is fixed between demifacet cover (3) and the airbag (7) by clip (4); inlet valve (12) is located at the both sides of demifacet cover (3); outlet valve (5) places on the oxygen generator (10), has air bleeding valve (8) and starting device (9) on the airbag (7).
2. chemical oxygen supply formula fire disaster escaping mask according to claim 1 is characterized in that the interior potassium superoxide medicine of described oxygen generator (10) layer (15) top and bottom respectively put skim calcium hydroxide grain (14).
3. chemical oxygen supply formula fire disaster escaping mask according to claim 1 is characterized in that described oxygen generator (10) is the thin medicine layer garden shape jar of diameter greater than height.
4. chemical oxygen supply formula fire disaster escaping mask according to claim 1, it is characterized in that described protective cover (6) but make by temperature resistant rubber.
5. chemical oxygen supply formula fire disaster escaping mask according to claim 1 is characterized in that described demifacet cover (3) is provided with back-up ring and the adapter sleeve that has groove.
6. potassium according to claim 1 chemistry oxygen supply formula fire disaster escaping mask is characterized in that described airbag (7) made by polyethylene film or neoprene cloth.
7. chemical oxygen supply formula fire disaster escaping mask according to claim 1 is characterized in that described headgear (1) makes with the compound layer of aluminum film of fire-retardant textile cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95204625 CN2241000Y (en) | 1995-02-28 | 1995-02-28 | Chemical oxygen supply type mask for rescuing from fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95204625 CN2241000Y (en) | 1995-02-28 | 1995-02-28 | Chemical oxygen supply type mask for rescuing from fire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2241000Y true CN2241000Y (en) | 1996-11-27 |
Family
ID=33857088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95204625 Expired - Fee Related CN2241000Y (en) | 1995-02-28 | 1995-02-28 | Chemical oxygen supply type mask for rescuing from fire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2241000Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671318A (en) * | 2012-05-14 | 2012-09-19 | 北京安氧特科技有限公司 | Chemical oxygen-making respirator for normal temperature phase change material refrigeration |
-
1995
- 1995-02-28 CN CN 95204625 patent/CN2241000Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671318A (en) * | 2012-05-14 | 2012-09-19 | 北京安氧特科技有限公司 | Chemical oxygen-making respirator for normal temperature phase change material refrigeration |
| CN102671318B (en) * | 2012-05-14 | 2014-07-23 | 北京安氧特科技有限公司 | Chemical oxygen-making respirator for normal temperature phase change material refrigeration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |