CN115531758A - Chemical oxygen fire-fighting self-rescue respirator - Google Patents
Chemical oxygen fire-fighting self-rescue respirator Download PDFInfo
- Publication number
- CN115531758A CN115531758A CN202211277158.4A CN202211277158A CN115531758A CN 115531758 A CN115531758 A CN 115531758A CN 202211277158 A CN202211277158 A CN 202211277158A CN 115531758 A CN115531758 A CN 115531758A
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- Prior art keywords
- fire
- hood
- oxygen
- respirator
- air inlet
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
- A62B18/082—Assembling eyepieces, lenses or vision-correction means in or on gas-masks
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/08—Respiratory apparatus containing chemicals producing oxygen
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/10—Respiratory apparatus with filter elements
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/12—Respiratory apparatus with fresh-air hose
Abstract
The invention discloses a chemical oxygen fire-fighting self-rescue respirator, which comprises a fire-fighting head cover, wherein a window is arranged on the outer wall of the fire-fighting head cover; a breathing mask is connected inside the fire-proof hood, an oxygen generating tank is connected to the outer wall of the fire-proof hood, an air inlet through pipe is arranged between the oxygen generating tank and the breathing mask, an air bag in matched connection with the oxygen generating tank is connected to the bottom of the fire-proof hood, and an oxygen supply pipe is connected between the air bag and the breathing mask; and a water vapor absorption mechanism is arranged on the air inlet through pipe. When the respirator breathes, the set rotating sheet rotates to act on the laser induction switch under the action of air flow when the respirator breathes, so that the set stepping motor drives the cotton column to rotate to enter the air inlet through pipe, the water vapor in the passing air is conveniently absorbed and filtered, the water vapor is prevented from entering the oxygen generating tank and the air bag to influence the generation and use of oxygen, and the subsequent water vapor treatment work can be reduced.
Description
Technical Field
The invention relates to the technical field of fire-fighting respirators, in particular to a chemical oxygen fire-fighting self-rescue respirator.
Background
Common self-rescue respirators for fire escape comprise four types, namely a filtering type respirator, an oxygen candle type respirator, a chemical oxygen type respirator and a compressed oxygen type respirator, wherein the chemical oxygen type respirator can well ensure that a user is isolated from the outside in the escape process, and the chemical oxygen type respirator is simple and reliable in production, so that the respirator is used more;
current chemical oxygen fire control self-rescuer, patent grant publication number are CN 202028062U, include gasbag and the respirator, heat insulating rubber cover, the oxygen generating tank that connect in order, the gasbag passes through air duct and heat insulating rubber cover intercommunication, be equipped with the breather valve seat between face guard and the heat insulating rubber cover, be equipped with the breather valve seat between heat insulating rubber cover and the oxygen generating tank. The utility model adds the breather valve seat and the breather valve seat, so that the respirator is not flattened or folded even if the respirator is swung in the escape process, thereby basically avoiding the stagnation of air and ensuring the smoothness of air flow;
the comparison file has the following disadvantages: above-mentioned current chemical oxygen fire control self-rescue respirator can breathe smoothly, but its steam that does not produce among the respiratory process handles, and the user exhales at every turn and all can produce steam, and steam can be along with the air current together get into in oxygen generating tank and the gasbag, all can bring inconvenience to oxygen production and circulation use.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a chemical oxygen fire-fighting self-rescue respirator.
The purpose of the invention can be realized by the following technical scheme:
a chemical oxygen fire-fighting self-rescue respirator comprises a fire-proof hood, wherein a window is arranged on the outer wall of the fire-proof hood; a breathing mask is connected inside the fire-proof hood, an oxygen generating tank is connected to the outer wall of the fire-proof hood, an air inlet through pipe is arranged between the oxygen generating tank and the breathing mask, an air bag in matched connection with the oxygen generating tank is connected to the bottom of the fire-proof hood, and an oxygen supply pipe is connected between the air bag and the breathing mask; be provided with steam absorption mechanism on the siphunculus admits air, steam absorption mechanism includes step motor, step motor connects the fire prevention head covers, step motor's main shaft end is connected with the carousel, admit air set up on the siphunculus with carousel matched with butt joint breach, be provided with the cotton post of ventilating on the carousel, be connected with the electric plate on the outer wall of fire prevention hood, the electric plate laminating is in the bottom of carousel, admit air the siphunculus with be connected with the connector head between the respiratory mask, the overhead with of connecting pipe the breathing inductive switch group that the step motor electricity is connected, the overhead with of connecting pipe admit air siphunculus matched with loading mechanism that still is provided with.
As a further scheme of the invention: it has a plurality ofly to ventilate cotton post circumference equidistance distribution, and every the cotton post of ventilating all runs through the carousel.
As a further scheme of the invention: be connected with the connection guide rail on the outer wall of fire hood, sliding connection has the clean strip of scraping on the connection guide rail, the clean strip of scraping the laminating is in on the window, the clean strip of scraping with be connected with coupling spring between the connection guide rail, the one end of clean strip of scraping is connected with the stay cord.
As a further scheme of the invention: be provided with the microphone on the inner wall of respiratory mask, be connected with on the outer wall of fire prevention hood with the speaker that microphone electricity is connected.
As a further scheme of the invention: breathe inductive switch group including laser inductive switch, laser inductive switch connects on the inner wall of connector head, step motor with the laser inductive switch electricity is connected, the port department swing joint that the connector head is close to respiratory mask has the rotation thin slice.
As a further scheme of the invention: the loading system includes electric telescopic handle, electric telescopic handle is vertical to be connected on the connecting pipe head, and electric telescopic handle with the laser inductive switch electricity is connected, electric telescopic handle's flexible end is connected with the umbelliform cover body, the bottom of the umbelliform cover body be provided with the elasticity rubber ring that the siphunculus aligns admits air, the umbelliform cover body with be connected with flexible connecting rod between the elasticity rubber ring.
As a further scheme of the invention: the inner ring of the elastic rubber ring is provided with a boss matched with the umbrella-shaped cover body.
As a further scheme of the invention: the elastic rubber ring is a conical body, the bottom diameter of the elastic rubber ring is smaller than the inner diameter of the air inlet through pipe, and the top diameter of the elastic rubber ring is larger than the inner diameter of the air inlet through pipe.
The invention has the beneficial effects that:
1. when the respirator breathes, the set rotating sheet rotates to act on the laser sensing switch under the action of air flow when the respirator breathes, so that the set stepping motor drives the cotton column to rotate to enter the air inlet through pipe, the water vapor in the passing air is conveniently absorbed and filtered, the water vapor is prevented from entering the oxygen generating tank and the air bag to influence the generation and use of oxygen, and meanwhile, the subsequent water vapor treatment work can be reduced;
2. when the water vapor treatment is carried out through the arranged cotton column, the arranged elastic rubber ring and the umbrella-shaped cover body are combined to push and press the gas in the air inlet through pipe, so that the gas is promoted to flow through the cotton column, the phenomenon that the cotton column causes great obstruction to the gas and influences oxygen generation is avoided, and meanwhile, the elastic rubber ring and the umbrella-shaped cover body can be automatically separated when reset, so that the air inlet through pipe is prevented from sucking back the gas;
3. the fire-proof hood provided by the invention can protect the whole head against fire, observe the external environment by means of the arranged window, and call for help by the microphone arranged inside and the matched loudspeaker.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall right-side cross-sectional structure of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is an enlarged schematic view of the structure at B in FIG. 3;
FIG. 5 is a schematic top view of a part of the structure of the rotary plate, the cotton column, the intake pipe and the electric heating plate;
fig. 6 is a schematic structural view of the docking notch in the present invention.
In the figure: 1. a fire-proof head cover; 2. a window; 3. cleaning the scraping strip; 4. connecting the guide rails; 5. a connecting spring; 6. pulling a rope; 7. a speaker; 8. a respiratory mask; 9. an oxygen generating tank; 10. an air bag; 11. an elastic bandage; 12. an oxygen supply tube; 13. a microphone; 14. an electric telescopic rod; 15. connecting the pipe heads; 16. an air inlet pipe; 17. a turntable; 18. a ventilated cotton column; 19. a stepping motor; 20. an electric hot plate; 21. rotating the sheet; 22. a laser induction switch; 23. an umbrella-shaped cover body; 24. a telescopic connecting rod; 25. an elastic rubber ring; 26. a boss; 27. and (6) butting the notches.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-6, a chemical oxygen fire-fighting self-rescue respirator comprises a fire-fighting head cover 1, wherein the fire-fighting head cover 1 is made of fire-fighting materials, a window 2 is arranged on the outer wall of the fire-fighting head cover 1, and the window 2 is made of fire-fighting glass materials, so that a wearer can observe the external environment conveniently; the outer wall of the fire hood 1 is also vertically connected with a connecting guide rail 4, a cleaning scraping strip 3 is connected to the connecting guide rail 4 in a sliding manner, the cleaning scraping strip 3 is attached to the window 2, a connecting spring 5 is connected between the cleaning scraping strip 3 and the connecting guide rail 4, one end of the cleaning scraping strip 3 is connected with a pull rope 6, and when dust is attached to the window 2 to influence the watching of a wearer, the pull rope 6 can be pulled to enable the cleaning scraping strip 3 to move downwards along the window 2 to scrape off the attached dust impurities;
the interior of the fireproof hood 1 is fixedly connected with a respirator 8, the respirator 8 is used for covering the oral cavity and nasal cavity of a wearer, the respirator 8 is connected with an elastic bandage 11 and is convenient to wear, a microphone 13 is mounted on the inner wall of the respirator 8, a loudspeaker 7 electrically connected with the microphone 13 is mounted on the outer wall of the fireproof hood 1, a partition layer is arranged at the top in the fireproof hood 1 and is provided with a storage battery pack for supplying power to each electric power element of the whole respirator, so that when the wearer speaks in the fireproof hood 1, the microphone 13 receives sound and broadcasts the sound by the loudspeaker 7, and calling for help is facilitated;
an oxygen generating tank 9 is fixedly connected to the outer wall of the fire hood 1, an air inlet through pipe 16 is arranged between the oxygen generating tank 9 and the respirator 8, an air bag 10 which is connected with the oxygen generating tank 9 in a matched mode is connected to the bottom of the fire hood 1, an oxygen supply pipe 12 is connected between the air bag 10 and the respirator 8, air exhaled by a wearer enters the oxygen generating tank 9 through the air inlet through pipe 16, then the air and an oxygen generating agent in the oxygen generating tank 9 generate chemical reaction to generate oxygen, the generated oxygen enters the air bag 10, and the wearer can conveniently suck away the oxygen through the oxygen supply pipe 12 to breathe;
a vapor absorption mechanism is arranged on the air inlet pipe 16, the vapor absorption mechanism comprises a stepping motor 19, the stepping motor 19 is fixedly arranged on the fireproof hood 1, a turntable 17 is fixedly connected to the spindle end of the stepping motor 19, a butt joint gap 27 matched with the turntable 17 is formed in the air inlet pipe 16, namely, one end of the turntable 17 is in seamless butt joint in the butt joint gap 27 and can rotate relative to the air inlet pipe 16, a ventilation cotton column 18 with an air hole is arranged on the turntable 17, a plurality of ventilation cotton columns 18 are circumferentially and equidistantly distributed, each ventilation cotton column 18 penetrates through the turntable 17, an electric heating plate 20 is also fixedly connected to the outer wall of the fireproof hood 1, the electric heating plate 20 is attached to the bottom of the other end of the turntable 17, the electric heating plate 20 is a heat-conducting metal body, heating wires are embedded in the side wall of the electric heating plate, the ventilation cotton columns are electrified to generate heat, the stepping motor 19 and the electric heating plate 20 are powered by virtue of a storage battery pack, a connecting pipe head 15 is connected between the air inlet pipe 16 and the breathing cover 8, a breathing induction switch group electrically connected with the stepping motor 19 is arranged on the connecting head 15, the breathing induction switch group comprises a laser induction switch 22, the laser induction switch 22 which is electrically connected to drive the breathing induction switch 21 to rotate when the breathing induction sheet 21 which drives the breathing induction switch to rotate, when the breathing induction sheet to rotate, and the breathing induction sheet 21, and the breathing induction switch 21 rotates, when the breathing induction sheet rotates, the breathing induction switch 21 rotates to rotate, when the breathing induction sheet which drives the breathing induction switch to rotate, the breathing induction sheet to rotate, when the breathing induction switch 21, the breathing induction sheet to rotate, the breathing induction switch 21, the breathing cover 15, the breathing switch 22 rotates, so that one of the ventilating cotton columns 18 rotates to the inside of the air inlet through pipe 16, which is convenient for filtering and absorbing the water vapor in the passing air, when the wearer inhales, the rotating sheet 21 rotates and resets due to the suction force, the port of the connecting pipe head 15 is blocked, when the wearer exhales again, the rotating sheet 21 enables the laser induction switch 22 to generate induction again, so that the turntable 17 rotates for a certain angle again, the ventilating cotton column 18 which absorbs the water vapor is switched out, the next ventilating cotton column 18 rotates to be filtered, and in the rotating process of the turntable 17, the ventilating cotton columns 18 pass through the positions of the electric heating plates 20 one by one, the electric heating plates 20 are electrified to generate heat, the ventilating cotton column 18 which absorbs the water vapor is convenient to dry, so as to eliminate the water vapor, the ventilating cotton column 18 is convenient to be recycled, so that the water vapor generated in the exhaling process can be prevented from entering the oxygen generating tank 9 and the air bag 10;
the connecting tube head 15 is also provided with a pressurizing mechanism matched with the air inlet through tube 16, the pressurizing mechanism comprises an electric telescopic rod 14, the electric telescopic rod 14 is vertically and fixedly connected on the connecting tube head 15, the electric telescopic rod 14 is electrically connected with a laser induction switch 22, the telescopic end of the electric telescopic rod 14 is inserted in the connecting tube head 15, the telescopic end of the electric telescopic rod 14 is fixedly connected with an umbrella-shaped cover body 23, the bottom of the umbrella-shaped cover body 23 is provided with an elastic rubber ring 25 aligned with the air inlet through tube 16, the elastic rubber ring 25 is a conical body, the bottom end diameter of the elastic rubber ring 25 is smaller than the inner diameter of the air inlet through tube 16, the top end diameter is larger than the inner diameter of the air inlet through tube 16, the maximum diameter of the umbrella-shaped cover body 23 is smaller than the inner diameter of the air inlet through tube 16, the inner ring of the elastic rubber ring 25 is provided with a boss 26 matched with the umbrella-shaped cover body 23, and a telescopic connecting rod 24 is connected between the umbrella-shaped cover body 23 and the elastic rubber ring 25, when the laser induction switch 22 generates a sensing, the electric telescopic rod 14 completes a group of telescopic motion, when the electric telescopic rod 14 extends, the elastic rubber ring 25 arranged at the end part of the electric telescopic rod is extruded to enter the air inlet through pipe 16, a large friction force exists between the elastic rubber ring 25 and the air inlet through pipe 16 in the extrusion process, so that in the extension process of the electric telescopic rod 14, the umbrella-shaped cover body 23 pushes the telescopic connecting rod 24 to contract and then is spliced on a boss 26 at the inner ring of the elastic rubber ring 25 to realize closed butt joint, in the extension process of the electric telescopic rod 14, the gas in the air inlet through pipe 16 is pressurized to promote the gas to flow through the ventilating cotton column 18, the influence on the ventilating speed and the oxygen generation efficiency due to the existence of the ventilating cotton column 18 is avoided, and when the electric telescopic rod 14 contracts, due to the large friction force exists between the elastic rubber ring 25 and the air inlet through pipe 16, the umbrella-shaped cover 23 is separated from the elastic rubber ring 25 to prevent the air intake pipe 16 from sucking back.
The working principle of the invention is as follows: when the multifunctional cleaning head cover is used, the fireproof head cover 1 is worn on the head, the breathing mask 8 covers the oral cavity and the nasal cavity of a wearer, external observation is carried out through the window 2, when dust is attached to the window 2 to influence the viewing of the wearer, the pull rope 6 can be pulled, the cleaning scraping strip 3 moves downwards along the window 2, the attached dust impurities are scraped, when the wearer speaks in the fireproof head cover 1, the microphone 13 receives the sound, and then the sound is amplified and played by the loudspeaker 7, so that help calling is facilitated;
the gas exhaled by the wearer in the breathing process enters the oxygen generating tank 9 through the gas inlet pipe 16, then the gas and the oxygen generating agent in the oxygen generating tank 9 generate chemical reaction to generate oxygen, and the generated oxygen enters the air bag 10, so that the wearer can conveniently suck the oxygen through the oxygen supply pipe 12;
when a wearer exhales, airflow flows into the connecting tube head 15, then the rotating sheet 21 is pushed to rotate, the rotating sheet 21 causes the laser induction switch 22 to generate induction, so that the stepping motor 19 operates, the stepping motor 19 drives the rotary disc 17 to rotate for a certain angle, one ventilation cotton column 18 rotates to the inside of the air inlet through pipe 16, and water vapor in the passing air is conveniently filtered and absorbed, when the wearer inhales, the rotating sheet 21 rotates and resets due to suction, the port of the connecting tube head 15 is blocked, when the wearer exhales again, the rotating sheet 21 causes the laser induction switch 22 to generate induction again, so that the rotary disc 17 rotates for a certain angle again, the ventilation cotton column 18 absorbing water vapor is switched out, the next ventilation cotton column 18 rotates to be filtered, in the rotating process of the rotary disc 17, the ventilation cotton columns 18 pass through the positions of the electric heating plates 20 one by one, the electric heating plates 20 are electrified to generate heat, and the ventilation cotton column 18 absorbing water vapor is conveniently dried, so that water vapor is eliminated, the ventilation cotton column 18 is conveniently recycled, and thus the water vapor generated in the oxygen generating tank 9 and the air bag 10 during exhaling can be prevented from entering the air generating;
when the laser induction switch 22 senses, a signal is fed back to the electric telescopic rod 14, the electric telescopic rod 14 performs telescopic motion, when the electric telescopic rod 14 extends, the elastic rubber ring 25 arranged at the end of the electric telescopic rod is extruded to enter the air inlet through pipe 16, and a large friction force exists between the elastic rubber ring 25 and the air inlet through pipe 16 in the extruding process, so that in the extending process of the electric telescopic rod 14, the umbrella-shaped cover body 23 pushes the telescopic connecting rod 24 to contract and then is spliced to the boss 26 of the inner ring of the elastic rubber ring 25 to realize closed butt joint, so that in the extending process of the electric telescopic rod 14, gas in the air inlet through pipe 16 is pressurized to promote the gas to flow through the ventilating cotton column 18, the influence on the ventilating speed due to the existence of the ventilating cotton column 18 is avoided, and the influence on the oxygen generation efficiency is avoided, and when the electric telescopic rod 14 contracts, due to the large friction force existing between the elastic rubber ring 25 and the air inlet through pipe 16, the umbrella-shaped cover body 23 is separated from the elastic rubber ring 25, and the air inlet through pipe 16 is avoided from the air inlet through pipe 16 from suck back.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (8)
1. A chemical oxygen fire-fighting self-rescue respirator comprises a fire-proof hood (1), wherein a window (2) is arranged on the outer wall of the fire-proof hood (1); the fireproof hood is characterized in that a breathing mask (8) is connected inside the fireproof hood (1), an oxygen generating tank (9) is connected to the outer wall of the fireproof hood (1), an air inlet through pipe (16) is arranged between the oxygen generating tank (9) and the breathing mask (8), an air bag (10) which is matched and connected with the oxygen generating tank (9) is connected to the bottom of the fireproof hood (1), and an oxygen supply pipe (12) is connected between the air bag (10) and the breathing mask (8); be provided with steam absorption mechanism on intake siphunculus (16), its characterized in that, steam absorption mechanism includes step motor (19), step motor (19) are connected on fire prevention hood (1), the main shaft end of step motor (19) is connected with carousel (17), intake siphunculus (16) go up seted up with carousel (17) matched with butt joint breach (27), be provided with on carousel (17) and ventilate cotton post (18), be connected with electric plate (20) on the outer wall of fire prevention hood (1), electric plate (20) laminating is in the bottom of carousel (17), intake siphunculus (16) with be connected with connector tube head (15) between respiratory hood (8), be provided with on connector tube head (15) with the breathing inductive switch group that step motor (19) electricity is connected, still be provided with on connector tube head (15) with intake siphunculus (16) matched with loading system.
2. The chemical oxygen fire fighting self-rescue respirator according to claim 1, characterized in that the ventilation cotton columns (18) are distributed in a plurality at equal intervals in the circumferential direction, and each ventilation cotton column (18) penetrates through the rotating disc (17).
3. The chemical oxygen fire-fighting self-rescue respirator as claimed in claim 1, wherein a connecting guide rail (4) is connected to the outer wall of the fire hood (1), a cleaning scraping strip (3) is connected to the connecting guide rail (4) in a sliding manner, the cleaning scraping strip (3) is attached to the window (2), a connecting spring (5) is connected between the cleaning scraping strip (3) and the connecting guide rail (4), and a pull rope (6) is connected to one end of the cleaning scraping strip (3).
4. A chemical oxygen fire-fighting self-rescue respirator as claimed in claim 1, characterized in that a microphone (13) is arranged on the inner wall of the respirator (8), and a loudspeaker (7) electrically connected with the microphone (13) is connected to the outer wall of the fire hood (1).
5. The chemical oxygen fire-fighting self-rescue respirator as claimed in claim 1, wherein the breathing inductive switch group comprises a laser inductive switch (22), the laser inductive switch (22) is connected to the inner wall of the connector head (15), the stepping motor (19) is electrically connected to the laser inductive switch (22), and a rotary sheet (21) is movably connected to a port of the connector head (15) close to the breathing mask (8).
6. The chemical oxygen fire-fighting self-rescue respirator as claimed in claim 5, wherein the pressurizing mechanism comprises an electric telescopic rod (14), the electric telescopic rod (14) is vertically connected to the connector head (15), the electric telescopic rod (14) is electrically connected with the laser sensing switch (22), an umbrella-shaped cover body (23) is connected to the telescopic end of the electric telescopic rod (14), an elastic rubber ring (25) aligned with the air inlet pipe (16) is arranged at the bottom of the umbrella-shaped cover body (23), and a telescopic connecting rod (24) is connected between the umbrella-shaped cover body (23) and the elastic rubber ring (25).
7. A chemical oxygen fire fighting self-rescue respirator according to claim 6, characterized in that the inner ring of the elastic rubber ring (25) is provided with a boss (26) that fits with the umbrella-shaped cover (23).
8. A chemical oxygen fire fighting self-rescue respirator as claimed in claim 6, characterized in that the elastic rubber ring (25) is a cone, and the bottom diameter of the elastic rubber ring (25) is smaller than the inner diameter of the air inlet pipe (16), and the top diameter is larger than the inner diameter of the air inlet pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211277158.4A CN115531758B (en) | 2022-10-18 | 2022-10-18 | Chemical oxygen fire-fighting self-rescue respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211277158.4A CN115531758B (en) | 2022-10-18 | 2022-10-18 | Chemical oxygen fire-fighting self-rescue respirator |
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| Publication Number | Publication Date |
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| CN115531758A true CN115531758A (en) | 2022-12-30 |
| CN115531758B CN115531758B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211277158.4A Active CN115531758B (en) | 2022-10-18 | 2022-10-18 | Chemical oxygen fire-fighting self-rescue respirator |
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Citations (9)
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|---|---|---|---|---|
| GB8609387D0 (en) * | 1986-04-17 | 1986-05-21 | Sabre Safety Ltd | Emergency escape breathing apparatus |
| EP0241169A1 (en) * | 1986-04-02 | 1987-10-14 | Coal Industry (Patents) Limited | Improved breathing apparatus |
| CN2317893Y (en) * | 1997-06-20 | 1999-05-12 | 煤炭科学研究总院抚顺分院 | Chemical oxygen self-saving device |
| US6615828B1 (en) * | 1999-03-19 | 2003-09-09 | 3M Innovative Properties Company | Flow indicator device for respirators |
| CN2778323Y (en) * | 2005-03-16 | 2006-05-10 | 黑龙江省森林保护研究所 | Chemical oxygen inhalation apparatus for forest fire fighter |
| CN111744118A (en) * | 2020-07-30 | 2020-10-09 | 大连圣迈新材料有限公司 | Oxygen generating tank for respirator and respirator |
| CN114247065A (en) * | 2021-12-16 | 2022-03-29 | 广东友安应急消防科技股份有限公司 | Intelligent fire-fighting self-rescue respirator |
| CN217489571U (en) * | 2022-05-11 | 2022-09-27 | 内蒙古习尚喜新材料科技有限公司 | Chemical oxygen self-rescue respirator |
| WO2023277353A1 (en) * | 2021-06-28 | 2023-01-05 | 주식회사 케이디펜스 | Ventilation device for air respirator mask |
-
2022
- 2022-10-18 CN CN202211277158.4A patent/CN115531758B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0241169A1 (en) * | 1986-04-02 | 1987-10-14 | Coal Industry (Patents) Limited | Improved breathing apparatus |
| GB8609387D0 (en) * | 1986-04-17 | 1986-05-21 | Sabre Safety Ltd | Emergency escape breathing apparatus |
| CN2317893Y (en) * | 1997-06-20 | 1999-05-12 | 煤炭科学研究总院抚顺分院 | Chemical oxygen self-saving device |
| US6615828B1 (en) * | 1999-03-19 | 2003-09-09 | 3M Innovative Properties Company | Flow indicator device for respirators |
| CN2778323Y (en) * | 2005-03-16 | 2006-05-10 | 黑龙江省森林保护研究所 | Chemical oxygen inhalation apparatus for forest fire fighter |
| CN111744118A (en) * | 2020-07-30 | 2020-10-09 | 大连圣迈新材料有限公司 | Oxygen generating tank for respirator and respirator |
| WO2023277353A1 (en) * | 2021-06-28 | 2023-01-05 | 주식회사 케이디펜스 | Ventilation device for air respirator mask |
| CN114247065A (en) * | 2021-12-16 | 2022-03-29 | 广东友安应急消防科技股份有限公司 | Intelligent fire-fighting self-rescue respirator |
| CN217489571U (en) * | 2022-05-11 | 2022-09-27 | 内蒙古习尚喜新材料科技有限公司 | Chemical oxygen self-rescue respirator |
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| Publication number | Publication date |
|---|---|
| CN115531758B (en) | 2023-07-25 |
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