CN201263418Y

CN201263418Y - Multifunctional rescue protective helmet capable of supplying oxygen and filtering harmful air

Info

Publication number: CN201263418Y
Application number: CNU2008200540584U
Authority: CN
Inventors: 禹长春
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-13
Filing date: 2008-08-13
Publication date: 2009-07-01
Anticipated expiration: 2018-08-13

Abstract

The utility model relates to a multifunctional rescue safety cap capable of providing oxygen and filtering harmful air. A cap body with a headlight mounted at the front part is provided with a closed inner cavity; a high-pressure oxygen accumulator is mounted on a fixed seat of the cap body, a charging connector with a one-way valve is arranged at one end of the high-pressure oxygen accumulator, and a reducing and disconnecting valve is arranged at the other end of the high-pressure oxygen accumulator; the close inner cavity of the cap body is communicated with an air storage cavity of the high-pressure oxygen accumulator through the reducing and disconnecting valve; a respirator containing box is arranged on the cap body, and an oxygen-transferring connector communicated with the closed inner cavity is arranged in a box cavity; the nose-stuffing respirator, a nose-stuffing aspirator and a nose-stuffing hose are arranged in the box, and both ends of the hose are respectively connected with the nose-stuffing aspirator and a oxygen-transferring tube; the nose-stuffing respirator is provided with a one-way valve capable of being adjusted to be normally closed, and the nose-stuffing aspirator is provided with a one-way valve capable of being adjusted to be normally opened. The utility model has the function of a safety cap, can also provide the functions of emergent illumination, automatic oxygen supply and harmful air filtering, is suitable for emergency service and disaster relief in gas positioning accidents, fires, underwater search and rescue, and the like and is applicable to unexpected events endangering public safety.

Description

The multifunctional rescue safety helmet of energy oxygen supply and filtering noxious air

Technical field

The utility model relates to a kind of safety cap, further is meant the rescue safety helmet with automatic oxygen supply and energy oxygen supply and filtering noxious air, is a kind of wear-type multipurpose safety ensuring equipment.

Background technology

The existing safety cap that job site or mine use down only has and slows down the top and weigh down thing and hit the effect that is damaged, and its function single promptly just continuing a kind of ancient helmet function.In fact, in the work-yard or other environment of needs cap safe in utilization, always there are many unsafe factors and hidden danger, and the aerial object injury that produces wherein a kind of just at most that fall.Though nocuous security incident is not to take place at any time, constantly possessing safety assurance ability is the problem that take into full account.

The utility model content

The technical problems to be solved in the utility model is, deficiency at the prior art existence, the multifunctional rescue safety helmet of oxygen supply of a kind of energy and filtering noxious air is proposed, it not only has the function of conventional security cap, emergency lighting and automatically oxygen supply and filtering noxious air can also be provided, be suitable for using in the accident that rescue and relief work such as poison gas, fire, search and rescue under water and reply endanger public security.

The technical solution of the utility model is, the multifunctional rescue safety helmet of oxygen supply of described energy and filtering noxious air has closed inner chamber by be made of whole cap body and this cap body outer cap body and interior cap tire, lighting is equipped with in described cap body front portion, its design feature is, the bulb of this lighting through switch with the cap body in battery in the battery case of tape drum lid connect; The high pressure oxygen storage device is housed on the holder of cap body, one end of this high pressure oxygen storage device is provided with the band charging connector of check valve and the other end is provided with decompression and stop valve, and the closed inner chamber of cap body is communicated with the air storing cavity of stop valve with the high pressure oxygen storage device through described decompression; Also be provided with the respirator holder of a band closing cap on the cap body, be provided with the oxygen cathete connection mouth that is communicated with cap body closed inner chamber in the box chamber, the respirator holder is built-in with rhinobyon type breath device and rhinobyon type aspirator, soft air-guide pipe, an end of soft air-guide pipe be connected with the inlet end of rhinobyon type aspirator and the other end in order to connect with the oxygen cathete connection mouth; Opens and also be adjustable as normally closed check valve when described rhinobyon type breath device is provided with and exhales, the rhinobyon type aspirator is provided with opens and also is adjustable as the check valve of often opening when air-breathing.

Below in conjunction with accompanying drawing the utility model is made and to be further specified.

Referring to Fig. 1 and Fig. 2, the multifunctional rescue safety helmet of oxygen supply of described energy and filtering noxious air has closed inner chamber 4 by be made of whole cap body 3 and this cap body outer cap body 1 and interior cap tire 2, lighting 5 is equipped with in described cap body 3 front portions, its design feature is, the bulb of this lighting 5 through switch with cap body 3 in battery 8 connections in the battery case 7 of tape drum lid 6; On the holder 9 of cap body 3 high pressure oxygen storage device 10 is housed, one end of this high pressure oxygen storage device 10 is provided with the band charging connector 11 of check valve and the other end is provided with decompression and stop valve 12, and the closed inner chamber 4 of cap body 3 is communicated with the air storing cavity 13 of stop valve 12 with high pressure oxygen storage device 10 through described decompression; Also be provided with the respirator holder 15 of a band closing cap 14 on the cap body 3, be provided with the oxygen cathete connection mouth 16 that is communicated with cap body closed inner chamber 4 in the box chamber, respirator holder 15 is built-in with rhinobyon type breath device 17 and rhinobyon type aspirator 18, soft air-guide pipe, an end of soft air-guide pipe be connected with the inlet end of rhinobyon type aspirator 18 and the other end in order to connect with oxygen cathete connection mouth 16; Referring to Fig. 6 to Fig. 9, when being provided with and exhaling, described rhinobyon type breath device 17 opens and also is adjustable as normally closed check valve, and rhinobyon type aspirator 18 is provided with opens and also is adjustable as the check valve of often opening when air-breathing.

Referring to Fig. 1, the air gauge 19 of measuring gas pressure in the high pressure oxygen storage device 10 also can be set on cap body 3, with the indication operating pressure, provide timely inflation parameter.

Know-why of the present utility model and using method are that referring to Fig. 1 and Fig. 2, the structure of cap body 3 can make it have the function of conventional security cap; Lighting 5 on the cap body 3 can provide emergency lighting; Referring to Fig. 2 and Fig. 3, in the time will in high pressure oxygen storage device 10, charging into high pressure oxygen, outside oxygen supply pipe is connected to the charging connector 11 of high pressure oxygen storage device 10 left end band check valves, pressure oxygen charges into high pressure oxygen to air storing cavity 13 after pushing the check valve of charging connector 11 open, and described check valve is closed automatically when stopping to inflate; Open the decompression and the stop valve 12 of high pressure oxygen storage device 10 right-hand members, the high pressure oxygen in the air storing cavity 13 enters the closed inner chamber 4 of cap body 3 after this valve decompression, close 12 of this decompression and stop valves and stop to closed inner chamber 4 oxygen supplys.The procedure declaration of oxygen supply of the present utility model and filtering noxious air is as follows:

(1) increase human body respiration oxygen: rhinobyon type aspirator 18 is put into a side nostril, and the two ends of soft air-guide pipe connect the inlet end and the oxygen cathete connection mouth 16 of this rhinobyon type aspirator 18 respectively; Open decompression and closed inner chamber 4 oxygen supplys of stop valve 12 to cap body 3; Check valve when air-breathing in the rhinobyon type aspirator 18 is opened under gas pressure, realizes oxygen intake, and another nostril directly sucks air from air; During expiration, described check valve is closed automatically and is blocked the gas passage, and breath can only be from another nostril row to air.

(2) increase human body respiration oxygen (be suitable for poison gas, fire, use when searching and rescuing) under water:

A. of short duration oxygen supply: fill in rhinobyon type aspirator 18 and rhinobyon type breath device 17 respectively in two nostrils, open decompression and closed inner chamber 4 oxygen supplys of stop valve 12 to cap body 3; Air-breathing and when exhaling, the connection of described rhinobyon type aspirator 18 is identical with the process of the course of work and above-mentioned " increase human body respiration oxygen ".For rhinobyon type breath device 17, when air-breathing, closed check valve wherein and can only the opposite side nostril air-breathing; During expiration, one-way valve opens wherein can excrete gas by it.This oxygen supply mode is that a side nostril is air-breathing, and the opposite side muzzle is exhaled.

B. the oxygen supply of delaying time: the check valve in the described rhinobyon type breath device 17 is set to normally closed position, and the check valve of rhinobyon type aspirator 18 is set to the normally open position, and the two ends of soft air-guide pipe connect the inlet end and the oxygen cathete connection mouth 16 of this rhinobyon type aspirator 18 respectively; Open decompression and closed inner chamber 4 oxygen supplys of stop valve 12, fill in rhinobyon type aspirator 18 and rhinobyon type breath device 17 respectively in two nostrils to cap body 3.When air-breathing, because of the check valve of rhinobyon type aspirator 18 for often opening, direct oxygen intake, and the rhinobyon type breath device 17 in another nostril is normally closed, does not participate in air-breathing, exhalation process.During expiration, the barotropic gas that nasal cavity is sent can directly enter the closed inner chamber 4 of cap body 3 in advance successively by rhinobyon type aspirator 18, soft air-guide pipe, oxygen cathete connection mouth 16, low oxygen in breath and the closed inner chamber 4 is compressed simultaneously, and the pressure increase can make decompression and stop valve 12 close; After carrying out RB several times, oxygen content reduces in the closed inner chamber 4, and carbon dioxide content increases; Can be converted to when breathing does not feel like oneself and breathe out.This breathing method can be multiplied the service time of the oxygen of same stored amount.

Medical experiment shows that the each breathe air amount of human body is about 500 milliliters, and conventional respiration rate is 15-20 time/minute, and the oxygen content that consumes is about 5%, so the actual oxygen consumption is about 25 milliliters of/time breathings.People's breathing has great capacity of self-regulation.The long meeting of pure oxygen respiratory time simultaneously causes oxygen poisoning.Under the aerobic supplementary information, human body is discharged gas and can not impacted in certain hour self, and ruminating the breathing method, to adopt floating pipe to breathe in fishing under water be exactly a typical application example.So the utility model adopts two kinds of oxygen supply modes of of short duration oxygen supply and time-delay oxygen supply, according to service time and user liking mode to select for use.The volume of the closed inner chamber 4 of cap body 3 can be designed to each breathe air amount more than or equal to the people, promptly 500 milliliters.

(3) cleaning and the air that filters for breathing: rhinobyon type aspirator 18 is connected soft air-guide pipe one end, and the other end of soft air-guide pipe is put into pocket, and rhinobyon type aspirator 18 and rhinobyon type breath device 17 place two nostrils respectively; When air-breathing, the one-way valve opens of rhinobyon type aspirator 18, air enters nasal cavity after filtering through clothes, and the closed check valve of the rhinobyon type breath device 17 in another nostril can not suck air; During expiration, the closed check valve of rhinobyon type aspirator 18 and the one-way valve opens of rhinobyon type breath device 17 are by the latter exhale (wanting long-time filtered air is to join air cleaner in addition).

As known from the above, the utility model is the multifunctional rescue safety helmet of oxygen supply of a kind of energy and filtering noxious air, it not only has the function of conventional security cap, emergency lighting and automatically oxygen supply and filtering noxious air can also be provided, be suitable for using in the accident that rescue and relief work such as poison gas, fire, search and rescue under water and reply endanger public security.

Description of drawings

Fig. 1 is the main TV structure schematic diagram of a kind of embodiment of the utility model;

Fig. 2 be among Fig. 1 A-A to the sectional structure schematic diagram;

Fig. 3 is the structure for amplifying schematic diagram of Fig. 1 mesohigh oxygen storage device;

Fig. 4 is the structure for amplifying schematic diagram of the charging connector of Fig. 3 mesohigh oxygen storage device left end band check valve;

Fig. 5 is the decompression of Fig. 3 mesohigh oxygen storage device right-hand member and the structure for amplifying schematic diagram of stop valve;

Fig. 6 is a kind of embodiment contour structures schematic diagram of rhinobyon type breath device;

Fig. 7 be among Fig. 6 B-B to the sectional structure schematic diagram;

Fig. 8 is a kind of embodiment contour structures schematic diagram of rhinobyon type aspirator;

Fig. 9 be among Fig. 8 C-C to the sectional structure schematic diagram.

In the drawings:

1-outer cap body, 2-interior cap tire, 3-cap body,

4-closed inner chamber, 5-lighting, 6-lid,

7-battery case, 8-battery, 9-holder,

10-high pressure oxygen storage device, the charging connector of 11-band check valve,

12-decompression and stop valve, 13-air storing cavity, 14-closing cap

15-haustorium holder, 16-oxygen cathete connection mouth, 17-rhinobyon type breath device,

18-rhinobyon type aspirator, 19-air gauge, 20-connection mouth,

21-inflation connects mouth, 22-limit body, and 23-back-moving spring,

24-valve rod, 25-block, 26-valve pocket,

27-valve body, 28-oxygen delivery outlet, 29-balance air inlet,

30-dish-shaped barrier film, 31-spring base, 32-handwheel axle bed,

33-inboard spring, 34-needle, 35-outside spring,

36-handwheel, 37-hand wheel shaft, 38-breath device body,

39-passage, 40-diaphragm, 41-air inlet port,

42-limited step, the 43-port of giving vent to anger, 44-back-moving spring,

45-cock bolt, 46-aspirator body, 47 passages,

48-supporting step, 49-hollow bead, 50-interior grid sheet,

51-outer grid sheet.

The specific embodiment

As shown in Figure 1 and Figure 2, the multifunctional rescue safety helmet of energy described in the utility model oxygen supply and filtering noxious air has closed inner chamber 4 by be made of whole cap body 3 and this cap body outer cap body 1 and interior cap tire 2, lighting 5 is equipped with in described cap body 3 front portions, the bulb of this lighting 5 through switch with cap body 3 in battery 8 connections in the battery case 7 of tape drum lid 6; On the holder 9 of cap body 3 high pressure oxygen storage device 10 is housed, one end of this high pressure oxygen storage device 10 is provided with the band charging connector 11 of check valve and the other end is provided with decompression and stop valve 12, and the closed inner chamber 4 of cap body 3 is communicated with the air storing cavity 13 of stop valve 12 with high pressure oxygen storage device 10 through described decompression; Also be provided with the respirator holder 15 of a band closing cap 14 on the cap body 3, be provided with the oxygen cathete connection mouth 16 that is communicated with cap body closed inner chamber 4 in the box chamber, respirator holder 15 is built-in with rhinobyon type breath device 17 and rhinobyon type aspirator 18, soft air-guide pipe, an end of soft air-guide pipe be connected with the inlet end of rhinobyon type aspirator 18 and the other end in order to connect with oxygen cathete connection mouth 16; Referring to Fig. 6 to Fig. 9, when being provided with and exhaling, described rhinobyon type breath device 17 opens and also is adjustable as normally closed check valve, and rhinobyon type aspirator 18 is provided with opens and also is adjustable as the check valve of often opening when air-breathing.

Referring to Fig. 1, the air gauge 19 of measuring gas pressure in the high pressure oxygen storage device 10 is set on cap body 3, with the indication operating pressure, provide timely inflation parameter; The wireway of this air gauge 19 connects (referring to Fig. 4) with the connection mouth 20 of high pressure oxygen storage device 10 1 sides.

Check valve in the charging connector 11 of described high pressure oxygen storage device 10 1 end band check valves can adopt the prior art structure, and the self-closing valve structure as the charging connector of doughnut or bicycle tyre also can adopt structure shown in Figure 4; As shown in Figure 4, this check valve has a taper valve opening and this bigger end in taper valve opening aperture is positioned at described air storing cavity 13 1 sides in cylindrical shell one end of high pressure oxygen storage device 10, the taper valve opening outside is provided with inflation and connects mouth 21, the corresponding bullet bottom of valve rod 24 is arranged in described taper valve opening and its body of rod is positioned at inflation and connects mouth 21, lever front end spacing stop 22 and the cylindrical shell outer face between be provided with back-moving spring 23; Also can connect block 25 is set on the mouth 21 in described inflation.

The decompression and the stop valve 12 of described high pressure oxygen storage device 10 other ends can adopt the prior art structure, also can adopt Fig. 3 and structure shown in Figure 5; As shown in Figure 5, a kind of prior art structure of described decompression and stop valve 12 is, the end of described high pressure oxygen storage device 10 is provided with the valve body 27 of band valve pocket 26, the valve body bottom has the taper mesopore that is communicated with air storing cavity 13 and valve pocket 26, valve body 27 1 sides have oxygen delivery outlet 28 and balance air inlet 29, be provided with between described oxygen delivery outlet 28 and the balance air inlet 29 valve pocket 26 is divided into air-locked two-part dish-shaped barrier film 30 mutually, the tapered front end of needle 34 is arranged in described taper mesopore and its rear end links to each other with dish-shaped barrier film 30, be provided with spring base 31 that is contained on the valve body 27 and the handwheel axle bed 32 that valve pocket 26 is sealed in the outside of dish-shaped barrier film 30, between described valve body bottom and the dish-shaped barrier film 30 the inboard spring 33 that is enclosed within on the needle 34 is housed, outside spring 35 is housed between spring base 31 and the dish-shaped barrier film 30, the hand wheel shaft 37 that handwheel 36 is equipped with in the outer end be contained in the axis hole of described handwheel axle bed 32 and with this handwheel axle bed 32 to be threaded, the inner of hand wheel shaft 37 is positioned on the dish-shaped barrier film 30.Rotation hand wheel 36 drives hand wheel shaft 37 and rotates, and can make needle 34 generations move axially and seal the taper mesopore that is communicated with air storing cavity 13 and valve pocket 26 or make it and open, and promptly realizes the function of stop valve; When this stop valve mechanism is opening, the pressure differential that gas produced of sending or entering dish-shaped barrier film 30 both sides valve pockets through oxygen delivery outlet 28 and balance air inlet 29 has determined the position of dish-shaped barrier film 30, just needle 34 has promptly been realized decompression with respect to the aperture of taper mesopore.Regulate the aperture of needle 34 by handwheel 36, also can control high pressure oxygen burst size thus, the control of the rare oxygen of convenient high height above sea level area magnitude of recruitment with respect to the taper mesopore.

Open and be adjustable as normally closed check valve when exhaling in the described rhinobyon type breath device 17 and can adopt the prior art structure, also can adopt Fig. 6 and structure shown in Figure 7; By Fig. 6 and Fig. 7 as can be known, be provided with the diaphragm 40 that can cut off this passage in the passage 39 of the breath device body 38 of this rhinobyon type breath device 17, this diaphragm 40 is provided with diaphragm limited step 42 in passage 39 near air inlet port 41 1 sides, and diaphragm 40 opposite sides and passage 39 are given vent to anger back-moving spring 44 is housed between the port 43; Port 43 usefulness of giving vent to anger at breath device body 38 are threaded one and described diaphragm 40 can be pressed the cock bolt of putting on diaphragm limited step 42 45.When diaphragm 40 by cock bolt 45 roof pressures on diaphragm limited step 42 time, this diaphragm 40 has just been blocked passage 39, is about to check valve and is adjusted to normally off.Usually under the state, as shown in Figure 7, acted on the diaphragm 40 by the gas of air inlet port 41 admission passages 39, make diaphragm 40 overcome the elastic force of back-moving spring 44 and produce and move down and break away from diaphragm limited step 42, passage 39 is an opening state; At no gas admission passage 39 or gas when giving vent to anger port 43 admission passages 39, the elastic force of back-moving spring 44 and gas pressure do with under, diaphragm 40 is pressed on the diaphragm limited step 42, has blocked passage 39, has realized the function of check valve.

Open and be adjustable as the check valve of often opening when air-breathing in the described rhinobyon type aspirator 18 and can adopt the prior art structure, also can adopt Fig. 8 and structure shown in Figure 9; By Fig. 8 and Fig. 9 as can be known, be provided with the hollow bead 49 that can cut off this passage in the passage 47 of the aspirator body 46 of this rhinobyon type aspirator 18, this hollow bead 49 places between supporting step 48 and the interior grid sheet 50, and the port of giving vent to anger of aspirator body 46 is provided with outer grid sheet 51.When air-breathing, air-flow holds up hollow bead 49 and breaks away from supporting step 48, and air-flow can pass through passage 47; Otherwise oppositely air pressure is pressed in supporting step 48 with hollow bead 49, has blocked passage 47 thus, has realized the function of check valve; In hollow bead 49 is pushed into grid sheet 50 and outside between the grid sheet 51 and make it to be positioned at this and locate just to make passage 47 be in normally open when motionless, promptly realized being adjusted to often open check valve is adjusted to normally open.

The utility model said apparatus is as a kind of multiduty safety convenience instrument, can be applied to the rare oxygen of high height above sea level area supplemental oxygen, also is applied to poison gas, fire, searches and rescues and as air cleaning and filtration under water; Can also be applied to army, particularly rescue and relief work and fire fighter and public security, traffic police, security personnel's patrol is coped with contingencies.

Claims

1, the multifunctional rescue safety helmet of oxygen supply of a kind of energy and filtering noxious air, have and form whole cap body (3) and this cap body by outer cap body (1) and interior cap tire (2) closed inner chamber (4) is arranged, lighting (5) is equipped with in described cap body (3) front portion, it is characterized in that, the bulb of this lighting (5) through switch with cap body (3) in battery (8) connection in the battery case (7) of tape drum lid (6); On the holder (9) of cap body (3) high pressure oxygen storage device (10) is housed, one end of this high pressure oxygen storage device (10) is provided with the band charging connector (11) of check valve and the other end is provided with decompression and stop valve (12), and the closed inner chamber (4) of cap body (3) is communicated with the air storing cavity (13) of stop valve (12) with high pressure oxygen storage device (10) through described decompression; Also be provided with the respirator holder (15) of a band closing cap (14) on the cap body (3), be provided with the oxygen cathete connection mouth (16) that is communicated with cap body closed inner chamber (4) in the box chamber, respirator holder (15) is built-in with rhinobyon type breath device (17) and rhinobyon type aspirator (18), soft air-guide pipe, an end of soft air-guide pipe be connected with the inlet end of rhinobyon type aspirator (18) and the other end in order to connect with oxygen cathete connection mouth (16); Opens and also be adjustable as normally closed check valve when described rhinobyon type breath device (17) is provided with and exhales, rhinobyon type aspirator (18) is provided with opens and also is adjustable as the check valve of often opening when air-breathing.

2, according to the multifunctional rescue safety helmet of claim 1 described energy oxygen supply and filtering noxious air, it is characterized in that, on cap body (3), be provided with the air gauge (19) of measuring gas pressure in the high pressure oxygen storage device (10).

3, multifunctional rescue safety helmet according to claim 1 described energy oxygen supply and filtering noxious air, it is characterized in that, the structure of the check valve in the charging connector (11) of described high pressure oxygen storage device (10) one end band check valves is, have a taper valve opening and this bigger end in taper valve opening aperture is positioned at described air storing cavity (13) one sides in cylindrical shell one end of high pressure oxygen storage device (10), the taper valve opening outside is provided with inflation and connects mouth (21), the corresponding bullet bottom of valve rod (24) is arranged in described taper valve opening and its body of rod is positioned at inflation and connects mouth (21), is provided with back-moving spring (23) between the limit body (22) of lever front end and cylindrical shell outer face.

4, according to the multifunctional rescue safety helmet of claim 3 described energy oxygen supply and filtering noxious air, it is characterized in that, connect in described inflation block (25) is set on the mouth (21).

5, multifunctional rescue safety helmet according to claim 1 described energy oxygen supply and filtering noxious air, it is characterized in that, the decompression of described high pressure oxygen storage device (10) other end and the structure of stop valve (12) are, the end of described high pressure oxygen storage device (10) is provided with the valve body (27) of band valve pocket (26), the valve body bottom has the taper mesopore that is communicated with air storing cavity (13) and valve pocket (26), valve body (27) one sides have oxygen delivery outlet (28) and balance air inlet (29), be provided with between described oxygen delivery outlet (28) and the balance air inlet (29) valve pocket (26) is divided into air-locked two-part dish-shaped barrier film (30) mutually, the tapered front end of needle (34) is arranged in described taper mesopore and its rear end links to each other with dish-shaped barrier film (30), be provided with spring base (31) that is contained on the valve body (27) and the handwheel axle bed (32) that valve pocket (26) is sealed in the outside of dish-shaped barrier film (30), between described valve body bottom and the dish-shaped barrier film (30) the inboard spring (33) that is enclosed within on the needle (34) is housed, outside spring (35) is housed between spring base (31) and the dish-shaped barrier film (30), the hand wheel shaft (37) that handwheel (36) are equipped with in the outer end be contained in the axis hole of described handwheel axle bed (32) and with this handwheel axle bed (32) to be threaded, the inner of hand wheel shaft (37) is positioned on the dish-shaped barrier film (30).

6, according to claim 1 is described can oxygen supply and the multifunctional rescue safety helmet of filtering noxious air, it is characterized in that, the structure of opening and also be adjustable as normally closed check valve when exhaling in the described rhinobyon type breath device (17) is, be provided with the diaphragm (40) that can cut off this passage in the passage (39) of breath device body (38), this diaphragm (40) is provided with diaphragm limited step (42) in passage (39) near air inlet port (41) one sides, and diaphragm (40) opposite side and passage (39) are given vent to anger back-moving spring (44) is housed between the port (43); The port of giving vent to anger (43) at breath device body (38) can be pressed the cock bolt of putting on diaphragm limited step (42) (45) with described diaphragm (40) with being threaded one.

7, according to claim 1 is described can oxygen supply and the multifunctional rescue safety helmet of filtering noxious air, it is characterized in that, the structure of opening and also be adjustable as the check valve of often opening in the described rhinobyon type aspirator (18) when air-breathing is, be provided with the hollow bead (49) that can cut off this passage in the passage (47) of aspirator body (46), this hollow bead (49) places between supporting step (48) and the interior grid sheet (50), and the port of giving vent to anger of aspirator body 46 is provided with outer grid sheet (51).