CN201135713Y

CN201135713Y - Escaping respirator

Info

Publication number: CN201135713Y
Application number: CNU2008200784485U
Authority: CN
Inventors: 张捷岩
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-07
Filing date: 2008-01-07
Publication date: 2008-10-22
Anticipated expiration: 2018-01-07

Abstract

The utility model relates to an escape breathing apparatus, which comprises a breath mask (1), an air storage bag (2), an air inflator (4), an air filling pipe(5), an air collecting pipe (6) and an air supply pipe (7).The escape breathing apparatus can be used together with a pair of goggles (8) used for protecting eyes. To ensure that the operation of the escape breathing apparatus is simple, and the use is secure and convenient, the air storage bag is connected with one end (A) of the air inflator (4) in an air flowing way through the air filling pipe (5), and the air collecting pipe is connected with the other end (B) of the air inflator (4) in an air flowing way, and a nose cork (9) is arranged on the edge (13) of the mask body (3). The breath mask (1) is connected with the air storage bag (2) in an air flowing way through the air supply pipe (7).

Description

EEBD

Technical field

The present invention relates to escape and breathe the dress device, in particular for the EEBD that escapes the inferno.

Background technology

Causing the personnel death overwhelming majority during breaking out of fire is death by suffocation because sucking flue gas or toxic gas.Lifesaving respirator is the respiratory protection equipment of promptly fleeing from from the scene of fire for the survivor.For this reason, adopt activated carbon filtration flue gas type Escaping face gruard usually, when breaking out of fire, the filter filtering smog that active carbon is housed by face shield provides cleaned air to the escape personnel, at short notice so that flee the scene.But activated carbon filtration flue gas type Escaping face gruard commonly used has following shortcoming: one, active carbon lost efficacy easily and can't check; Two, complex structure makes cost price higher; Three, periodic replacement active carbon expense is bigger; Four, contain oxygen in the smog after the burning and reduce, even if also be difficult to guarantor's normal oxygen demand after filtering.

Chinese invention patent application 200510007129 discloses a kind of lifesaving respirator that is used to flee from fire or gas explosion scene, and described lifesaving respirator comprises air storage bag, oronasal mask and wireway.Breathing equipment struts balloon ends by steel wire, and the air bag that need stretch during use receives air, and the air pressure in the air bag is identical with atmospheric pressure all the time, and like this, the resistance that will overcome aspirating air pipe when the user is air-breathing could during use be required great effort the gas sucking-off.The oronasal mask of breath device is used inconvenience, when air-breathing, the carbon dioxide of breathing out or be back to air bag along air intake duct, can once more the waste gas of breathing out be sucked when air-breathing, perhaps need take oronasal mask directly exhales carbon dioxide in the atmosphere, and then it is air-breathing to put on oronasal mask, and this has increased the breathing difficulty, makes lifesaving respirator complicated operation and dangerous.

Summary of the invention

Therefore, the purpose of this utility model provides a kind of improved lifesaving respirator in order to overcome above-mentioned the deficiencies in the prior art just, and this lifesaving respirator is used to escape the inferno, and has characteristics simple to operate, safe ready.

To achieve these goals, the utility model provides a kind of EEBD, and it comprises air storage bag, breathing mask, inflator, gas tube, air collecting pipe and air supply pipe.Such EEBD can with the goggles logotype that is used to protect eyes.The feature of described EEBD is, air storage bag links to each other in the gas communication mode with an end of inflator by gas tube, air collecting pipe links to each other in the gas communication mode with the other end of inflator, on the cover body edge, be provided with nasal obstruction, centre at cover body is provided with inlet valve, the inlet of described inlet valve links to each other in the gas communication mode with air storage bag by air supply pipe, be provided with at the outlet side of inlet valve and be difficult to articulate, the outlet of inlet valve is communicated with being difficult to articulate, on cover body, be provided with outlet valve, be used for the waste gas of breathing out is directly discharged face shield.

According to the utility model, above-mentioned gas circulation connected mode is preferably grafting.The cover body wall thickness successively decreases towards the edge, and the shape at the edge of described cover body is oval or irregularly shaped.The inlet that links to each other with air supply pipe at inlet valve is provided with check ball, is used to stop the anti-air storage bag that flows into of breath, thereby keeps with fresh air in the air storage bag.

The used air storage bag of escape breath device adopts fire-resistant flexible material to make, and preferably adopts soft nontoxic fire resistance fibre material, during air in the emptying air bag, can be with its stored collapsed, thus conveniently deposit.Carry for convenience, also be provided with the suspension braces on the air storage bag, air storage bag can be hung on the shoulder in use.Air collecting pipe adopts refractory material to make and be designed to foldable for storage.Breathing mask adopts the rubber-like refractory material to make.Above-mentioned refractory material for example is a polyester.

Escape breath device of the present utility model can directly extract fresh air by air collecting pipe, injects air storage bag with the inflator pressurization; The design of nasal obstruction face shield one, outlet valve cuts out when air-breathing, by the unidirectional air inlet of air storage bag; Inlet valve cuts out during expiration, can breathe on gas production limit, limit.

Description of drawings

Below, with reference to accompanying drawing a specific embodiment of the present utility model is described, to help understanding the utility model, wherein:

Fig. 1 is according to escape breath device combination schematic diagram of the present utility model;

Fig. 2 is the cutaway view of the expiration face shield of escape breath device shown in Figure 1;

Fig. 3 is the front view of the air collecting pipe of escape breath device shown in Figure 1.

The specific embodiment

As depicted in figs. 1 and 2, comprise air storage bag 2, breathing mask 1, inflator 4, gas tube 5, air collecting pipe 6 and air supply pipe 7 according to EEBD of the present utility model, such EEBD can with goggles 8 logotypes that are used to protect eyes.Air storage bag 2 links to each other in the gas communication mode with an end A of inflator 4 by gas tube 5, thereby the gas in the inflator can be charged in the air storage bag 2, the structure at the inflation inlet place of air storage bag 2 is identical with the structure of current commercially available air bed, water wing, for unidirectional non-return membrane structure, can prevent the gas backstreaming that charges into.And this air storage bag 2 also links to each other with gas communication by air supply pipe 7 and breathing mask 1.Above-mentioned connection preferably realizes with inserting mode.The other end B of inflator 4 is connected with air collecting pipe 6 by the gas mode of communicating, and this air collecting pipe is preferably telescopic.The inlet valve 11 in the centre that breathing mask 1 comprises edge disposed thereon and preferred and nasal obstruction 9 that cover body 3 is made into integration and is arranged on cover body 3, the wall thickness of cover body 3 successively decreases towards described edge 13, and the shape at described edge 13 also can be oval or irregularly shaped.The inlet of inlet valve 11 links to each other in the gas communication mode with air storage bag 2 by air supply pipe 7, in the outlet side zone of inlet valve 11 and in the bowl shaped space centre of cover body, be provided with and be difficult to articulate 10, and the entrance side that links to each other with air supply pipe 7 at this inlet valve is provided with check ball 11a, be used to stop the anti-air storage bag 2 that flows into of breath, the outlet of inlet valve 11 10 is communicated with being difficult to articulate.Being provided with outlet valve 12 on cover body 3, here is unidirectional flexible sheet, so that breath is directly discharged OFP.

In the present embodiment, air storage bag 2 adopts fire-resistant flexible material to make, and particularly makes with soft nontoxic fire resistance fibre material.Because the manufactured materials of air storage bag is flexible, so air storage bag 2 can stored collapsed after the air emptying.Be provided with unidirectional non-return film at the inflation inlet place of air storage bag 2, prevent that the air that enters from refluxing.On air storage bag 2, also can be provided with and be used for air storage bag 2 is hung on braces (not shown) on the shoulder.As shown in Figure 3, foldable for storage be made and be preferably designed to air collecting pipe 6 can with exotic material.In one embodiment, the length of air collecting pipe 6 is equal to or greater than 3 meters.What can expect is that breathing mask 3 can be made with the rubber-like exotic material.

When breaking out of fire, be trapped in the good goggles 8 of personnel Ke Dai in the room, and worn breathing mask 1 in the following manner, promptly have a stuffy nose and 9 filled in the nostril and bite and be difficult to articulate 10 with tooth, make the edge of breathing mask 1 be close to face.Subsequently, with hand operated inflator 4, extract the cleaned air or rapidly in the room in the room outside, inject air storage bag 2, so, the air pressure in the air storage bag 2 is higher than the air pressure in the cover body 3, thereby makes in the smooth suction inlet of air quilt in the air bag.When exhaling, the check ball 11a in the inlet valve 11 seals air supply pipe 7, makes inlet valve 11 be in closure state, and exhalation waste gas can only be discharged outside the cover body 3 by outlet valve 12.Because outlet valve 12 be unidirectional flexible sheet, guaranteed that from structure the interior gas of cover body can be washed valve block open and flow to OFP when the pressure in the cover body 3 during greater than environmental pressure.The user makes breathing mask 1 internal pressure raise when exhaling, on the one hand the pressure differential (Δ P) between air storage bag 2 and the breathing mask 1 is reduced, the air capacity that flows out in the air storage bag 1 reduces, and outlet valve 12 two ends pressure reduction are increased, and the waste gas of exhalation is discharged to OFP through outlet valve 12.What can expect is that when being full of flue gas in the room, trapped personnel can stretch out air collecting pipe 6 outside window with the extraneous any path that communicates by window or other, extracts the fresh air that does not contain flue gas, to wait for rescue.

From as can be seen above, that EEBD of the present utility model has is simple to operate, safety and characteristics easily, need only during use with tooth and bite 10 the face applyings of being difficult to articulate breathing mask 1 and people, just can finish the overall process of air-breathing expiration automatically, both hands only need be controlled inflator and be finished tonifying Qi action and get final product.Owing to described air collecting pipe 6 can be stretched out and extract fresh air outside window, normal oxygen demand that like this can the guarantor.

Claims

1. EEBD, comprise the breathing mask (1) that has the cover body (3) that is bowl-type basically, air storage bag (2), inflator (4), gas tube (5), air collecting pipe (6) and air supply pipe (7), described air storage bag (2) links to each other in the gas communication mode with an end (A) of described inflator (4) by described gas tube (5), described air collecting pipe (6) links to each other in the gas communication mode with the other end (B) of described inflator (4), it is characterized in that, on the edge (13) of described cover body (3), be provided with nasal obstruction (9), be provided with inlet valve (11) in the centre of described cover body (3), the inlet of described inlet valve (11) links to each other in the gas communication mode with described air storage bag by described air supply pipe (7), in the outlet of described inlet valve (11) and bowl shaped space center, be provided be difficult to articulate (10) at described cover body, the outlet of described inlet valve (11) is communicated with described being difficult to articulate (10), is provided with outlet valve (12) on described cover body (3).

2. EEBD according to claim 1 is characterized in that, described gas is communicated with connected mode for pegging graft.

3. EEBD according to claim 1 is characterized in that, the shape at the edge (13) of described cover body (3) is oval or irregularly shaped.

4. EEBD according to claim 1 and 2 is characterized in that, the wall thickness of described cover body (3) successively decreases towards described edge (13).

5. EEBD according to claim 1 is characterized in that, the entrance side that links to each other with described air supply pipe (7) at described inlet valve (11) is provided with check ball (11a).

6. EEBD according to claim 1 is characterized in that, described nasal obstruction (9) is made into integration with described cover body (3).

7. EEBD according to claim 1 is characterized in that, described air storage bag (2) is provided with the suspension braces.

8. EEBD according to claim 1 is characterized in that described air collecting pipe is folding.

9. EEBD according to claim 1 is characterized in that, described outlet valve (12) is unidirectional flexible sheet structure.

10. according to the described EEBD of claim 1, it is characterized in that, described air storage bag (2) is made by the nontoxic fire resistance fibre material of softness, and described cover body (3), described air supply pipe (7), described gas tube (5) and described air collecting pipe (6) are all made with the heat-resistant fireproof material.