CN212347481U - Emergency respirator for forest firemen - Google Patents
Emergency respirator for forest firemen Download PDFInfo
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- CN212347481U CN212347481U CN202020633213.9U CN202020633213U CN212347481U CN 212347481 U CN212347481 U CN 212347481U CN 202020633213 U CN202020633213 U CN 202020633213U CN 212347481 U CN212347481 U CN 212347481U
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Abstract
The utility model discloses an emergency respirator for forest firemen, which comprises an air supply device, a one-way air inlet device, a mouth-nose mask and a one-way air outlet device; the mouth and nose cover closely covers the mouth and nose parts of the human body; the one-way air inlet device is arranged between the air supply device and the air suction cavity of the oronasal mask, the air passages of the air supply device, the oronasal mask and the air suction cavity of the oronasal mask are communicated, and the air supply device supplies air to the oronasal mask in one way through the one-way air inlet device; the one-way air outlet device is communicated with an air passage of the oronasal mask, and the expiratory cavity of the oronasal mask exhales to the external environment in one way through the one-way air outlet device. Compared with the prior art, the utility model discloses in the middle of the forest fire fighter emergency respirator that provides through setting up air feeder, one-way air inlet unit, oronasal mask and one-way air outlet means, form an independent autonomous respiratory system in its inside, the user need not to inhale high temperature, poisonous and harmful air from the external environment, avoids the fire fighter to suffocate because of the oxygen deficiency or inhale toxic gas, prevents simultaneously that the fire fighter from inhaling the high temperature respiratory track that burns.
Description
Technical Field
The utility model belongs to the technical field of personal protective equipment makes, in particular to emergency respirator.
Background
When a forest fire fighter extinguishes a forest fire in a short distance, the fire scene has the possibility of deflagration, fire flying and fire whirlwind at any time, and the forest fire fighter in the fire scene can be surrounded by high-temperature, dry and toxic air flow at any time, and if the forest fire fighter inhales the air flow, the air flow can cause fatal damage to the respiratory tract of the forest fire fighter, so that although the process of the occurrence of the fire scene accident is short, the life of the forest fire fighter is seriously threatened.
Aiming at the severe fire scene situation faced by forest firefighters and the current situation that the firefighters lack effective respiratory protection, a plurality of corresponding solutions are provided in the prior art, for example, a fire-avoiding cover for forest firefighters is disclosed in the patent application with the application number of 'CN200420019127. X', and relates to a fire-avoiding self-rescue device. The utility model discloses by the cover body, fill up limit and fixed band and constitute, the cover body comprises the trapezoidal side of two symmetries, the last base AB of two trapezoidal sides, left side limit AD and right side limit BC are even as an organic whole respectively, the middle part EF section of two lower base edge CDs is connected with respectively and fills up the limit, be connected with two fixed bands between two lower base edge CDs, the fixed band is located the outside on filling up the limit, two extreme points C and D of lower base edge CD connect respectively in the center department of fixed band, during the use, the cover body, fill up limit and fixed band and constitute triangular prism shape forest fire fighter and keep away the fire. The fire-fighting cover is carried by a fireman when the fireman arrives at a forest fire scene to extinguish the forest fire, if the fireman needs emergency fire-fighting in case of emergency, the fire-fighting cover can be removed, the flammable objects on the ground are eradicated, one edge of the fireman is held, the lower bottom edge CD is spread out, the forest fireman wears the spread fire-fighting cover while standing, two hands of the fireman grasp the fixing band 3, the feet of the fireman face the coming flame direction, the face of the fireman lies down on the ground in the fire-fighting cover, and the fire-fighting cover has the advantages of strong shielding performance, strong reflection performance, shielding effect on radiation and infrared rays and the like, and the fire-fighting cover emergently avoids the fire when meeting the dangerous situation of the fire scene.
However, the fire shelter for forest firefighters provided in the above patent application document inevitably has the following disadvantages when applied to a specific forest fire scene:
the emergency fire-avoiding cover has larger volume, larger weight, difficult carrying and excessive load for firemen when being stored;
the emergency fire-preventing cover is long in unfolding time, complicated in use process, incapable of being used correctly without being mastered by people, and difficult to play a danger-preventing role in time when emergency situations of forest fire fields happen suddenly;
the forest fire field is influenced by the environment and often has violent airflow movement, and the fire-proof cover is difficult to unfold under the condition.
Based on above-mentioned shortcoming, the fire cover is kept away to the forest fire fighter who provides in above-mentioned patent document hardly plays effectual guard action in specific forest fire scene, and forest fire fighter still needs a device that can effectively keep away the danger, especially can provide respiratory protection urgently. In patent application with the application number of CN200420019128.4, a smoke-proof escape mask for forest firefighters relates to a mask. The escape mask comprises a transparent mask body which is sleeved on the head of a human body and is made of high-temperature-resistant flame-retardant materials and a smoke filter layer which is fixed on the lower half part of the front face of the mask body, wherein at least one self-locking belt winding port is further arranged at the opening of the mask body, a drawing belt penetrates through the inside of the belt winding port, and the smoke filter layer is formed by overlapping three layers of flame-retardant cloth, superfine fiber filter cloth and absorbent cotton gauze from outside to inside in sequence to form a unique channel for the air to enter and exit from the. The escape mask provided in the patent application only has the function of filtering smoke dust, and cannot provide available air for the user to breathe independently, so that the user is easily subjected to gas poisoning, oxygen deficiency asphyxiation or respiratory tract burn caused by high-temperature air inhalation in an emergency, and a good application effect is difficult to obtain.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, an object of the present invention is to provide an emergency respirator, which has a complete self-breathing channel inside, and can avoid the user from inhaling air directly from the external environment, protect the respiratory system of the user, and provide necessary respiratory protection for the user to avoid danger and escape in the fire scene.
Another object of the utility model is to provide a be particularly suitable for with the fire fighter's urgent respirator of forest fire control rescue occasion, this respirator stable in structure is reliable, small in size is light, convenient to use, when using in the rescue occasion of putting out a fire of concrete forest scene of a fire, can gain good respiratory protection effect.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
an emergency respirator for forest firemen comprises a gas supply device, a one-way gas inlet device, a mouth-nose mask and a one-way gas outlet device; the mouth and nose cover closely covers the mouth and nose parts of the human body; the one-way air inlet device is arranged between the air supply device and the air suction cavity of the oronasal mask, the air passages of the air supply device and the oronasal mask are communicated, and the air supply device supplies air to the oronasal mask in one way through the one-way air inlet device; the one-way air outlet device is communicated with an air passage of an exhalation cavity of the oronasal mask, and the oronasal mask exhales to the external environment in one way through the one-way air outlet device.
The utility model provides an among the technical scheme, the human mouth nose position of oronasal mask laminating separates human mouth nose portion and external environment, and air feeder is whole respirator's air supply, provides the necessary air of human respiration, sets up one-way air inlet unit between air feeder and oronasal mask, then can guarantee that the source gas that is provided by air feeder can only follow air inlet direction and oronasal mask suction chamber intercommunication. And meanwhile, still set up one-way air outlet means in this respirator, and the oral-nasal mask exhales the chamber and communicates through one-way air outlet means and external environment gas circuit, then to the user, use the utility model provides a during respirator, the process of breathing in will inhale the cleanness that air feeder provided, normal atmospheric temperature, suitable source gas, exhale the process by one-way air outlet means with waste gas exhaust, and because one-way air outlet means can't reverse admit air, then high temperature in the external environment, poisonous, harmful particles's fire scene air can't enter into the oral-nasal mask through one-way air outlet means, ensure from this that the user breathes the smooth safety of process, do not receive outside fire scene environmental impact, protect human respiratory.
The oronasal mask comprises an oronasal mask body and a separation diaphragm; the separation membrane is fixedly connected with the oronasal mask body, and the separation membrane and the lower part of the oronasal mask body enclose to form an air suction cavity which closely covers the mouth of a human body; the separation diaphragm and the upper part of the mouth-nose mask body are enclosed to form an exhalation cavity which closely covers the nose of the human body.
The separation diaphragm transversely spans the middle of the oronasal mask body and separates the oronasal mask body into two independent cavities: the breathing cavity and the expiration cavity, the air supply device provides an air source for breathing, the air source is conveyed to the breathing cavity through the one-way air inlet device, the breathing cavity tightly covers the mouth of a human body, a user inhales air with the mouth, the air enters the human body and then circulates through a respiratory system of the human body, waste gas is exhaled into the expiration cavity through a nasal cavity, waste gas in the expiration cavity is discharged through the one-way air outlet device, the breathing cavity and the expiration cavity are separated by a separation diaphragm, the air source is effectively prevented from being interfered by the waste gas exhaled by the human body, the two cavities are independent from each other, and the breathing quality of the user.
Furthermore, the one-way air inlet device comprises an air inlet one-way valve, an air suction mouthpiece and an air inlet buffer bag; the air suction mouthpiece is arranged in the air suction cavity; the front end of the air inlet one-way valve is communicated with an air passage of the air supply device, and the rear end of the air inlet one-way valve is communicated with an air passage of the air suction mouthpiece. The air inlet buffer bag is arranged between the air supply device and the air inlet one-way valve, the front end of the air inlet buffer bag is communicated with the air passage of the air supply device, and the rear end of the air inlet buffer bag is communicated with the air passage of the air inlet one-way valve. The one-way air outlet device comprises a one-way air outlet valve, the one-way air outlet valve is communicated with an air passage of the expiration cavity, and the expiration cavity exhausts air to the external environment in a one-way mode through the one-way air outlet valve.
The utility model provides an among the technical scheme, air feeder including: the air supply bottle is detachably connected with the air inlet buffer bag, and when the air supply bottle is connected with the air inlet buffer bag, the air supply bottle and the air inlet buffer bag are kept in controllable air path communication. The air intake controller is connected to a gas supply bottle that supplies air under the control of the air intake controller. It should be emphasized that the gas supply bottle and the gas inlet controller are the prior art, when the gas supply bottle and the gas inlet controller are applied to a specific scene, the gas supply bottle can select an air compression bottle with certain pressure, a technician stores the compressed air in the bottle through a special instrument, the gas inlet controller can select a gas valve capable of controlling a switch, when a user opens the gas valve, the gas supply bottle starts to supply gas, the supplied gas enters the buffer bag to release the pressure, and the gas is supplied to the suction cavity along the gas channel through the gas inlet one-way valve and the suction mouthpiece; otherwise, the air valve is closed to stop air supply feeding. Through the control gas valve, a user can release all the gas in the gas supply bottle at one time to enable the gas to enter the buffer bag to slowly release the pressure of the gas, and can release the gas step by step and for multiple times to prolong the service life of the single gas supply bottle. After all the gas stored in a single gas supply bottle is released, the user detaches the empty gas supply bottle and replaces the full gas supply bottle, and the gas supply bottle can be used continuously.
Rely on above-mentioned structure, the utility model provides a respirator can realize independent air supply, one-way intake and the one-way function of giving vent to anger, when effectively guaranteeing the respiratory protection effect of respirator, guarantees stable in structure reliable, and small in size is light, and convenient to use can gain good protecting effect when using in the rescue occasion of putting out a fire in concrete forest fire scene.
The emergency respirator also comprises a fixing band which is used for being worn by a user and fixing the emergency respirator, and two ends of the fixing band are respectively detachably connected to two side wings of the oronasal mask body. When the user uses the respirator, the fixing band is adjusted to the accessible and the use is conveniently worn.
The utility model has the advantages that: compared with the prior art, the utility model discloses in the middle of the forest fire fighter emergency respirator that provides through setting up air feeder, one-way air inlet unit, oronasal mask and one-way air outlet means, form an independent autonomous respiratory system in its inside, the user need not to inhale high temperature, poisonous and harmful air from the external environment, avoids the fire fighter to suffocate because of the oxygen deficiency or inhale toxic gas, prevents simultaneously that the fire fighter from inhaling the high temperature respiratory track that burns.
Drawings
Fig. 1 is a first perspective structural view of a forest firefighter emergency respirator implemented in an embodiment.
Fig. 2 is a second perspective structural view of a forest firefighter emergency respirator implemented in an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
please refer to fig. 1-2.
An emergency respirator for forest firefighters comprises a gas supply device 1, a one-way gas inlet device 2, an oronasal mask 3 and a one-way gas outlet device 4; the oronasal mask 3 closely covers the oronasal part of the human body; the one-way air inlet device 2 is arranged between the air supply device 1 and the oronasal mask 3, the air passages of the three are communicated, and the air supply device 1 supplies air to the oronasal mask 3 in one way through the one-way air inlet device 2; the one-way air outlet device 4 is communicated with the air passage of the oronasal mask 3, and the oronasal mask 3 exhales to the external environment in one way through the one-way air outlet device 4.
In the present embodiment, the oronasal mask 3 includes an oronasal mask body 31 and a separation membrane 32; the separation membrane 32 is fixedly connected with the oronasal mask body 31, and the separation membrane 32 and the lower part of the oronasal mask body 31 are enclosed to form an air suction cavity A which closely covers the mouth of a human body; the separation diaphragm 32 and the upper part of the oronasal mask body 31 enclose to form an exhalation cavity B which closely covers the nose of the human body.
Further, the one-way air inlet device 2 comprises an air inlet one-way valve 21, an air suction mouthpiece 22 and an air inlet buffer bag 23; the suction mouthpiece 22 is arranged inside the suction cavity A; the front end of the air inlet one-way valve 21 is communicated with the air passage of the air supply device 1, and the rear end of the air inlet one-way valve 21 is communicated with the air passage of the air suction mouthpiece 22. The air inlet buffer bag 23 is arranged between the air supply device 1 and the air inlet one-way valve 21, the front end of the air inlet buffer bag 23 is communicated with the air passage of the air supply device 1, and the rear end of the air inlet buffer bag 23 is communicated with the air passage of the air inlet one-way valve 21. The one-way air outlet device 4 comprises a one-way air outlet valve 41, the one-way air outlet valve 41 is communicated with an air passage of the expiration cavity B, and the expiration cavity B exhausts air to the external environment in one way through the one-way air outlet valve 41.
In the present embodiment, the gas supply device 1 includes: a gas supply bottle 11 for generating or storing a fixed amount of compressed air, and an air inlet controller 12 for controlling the air outlet feeding, wherein the gas supply bottle 11 is detachably connected with an air inlet buffer bag 23, and when the gas supply bottle 11 is connected with the air inlet buffer bag 23, a controllable air path communication is kept between the gas supply bottle 11 and the air inlet buffer bag 23. And the air intake controller 12 is connected to the gas supply bottle 11, and the gas supply bottle 11 supplies air under the control of the air intake controller 12.
The emergency respirator also comprises a fixing belt 5 which is used for being worn by a user and fixing the emergency respirator, and two ends of the fixing belt 5 are respectively detachably connected to two side wings of the oronasal mask body 31. When the user uses the respirator, the fixing band is adjusted to the accessible and the use is conveniently worn. The fixing band 5 may be made of a flame retardant material having an elastic band shape or a net shape.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. An emergency respirator for forest firefighters is characterized by comprising a gas supply device, a one-way gas inlet device, a mouth-nose mask and a one-way gas outlet device;
the mouth and nose cover closely covers the mouth and nose parts of the human body; the one-way air inlet device is arranged between the air supply device and the oronasal mask, the air passages of the one-way air inlet device and the oronasal mask are communicated, and the air supply device supplies air to the oronasal mask in a one-way mode through the one-way air inlet device;
the one-way air outlet device is communicated with the air passage of the oronasal mask, and the oronasal mask exhales to the external environment in one way through the one-way air outlet device.
2. A forest firefighter emergency respirator as claimed in claim 1, wherein the oronasal mask includes an oronasal mask body and a separating membrane; the separation membrane is fixedly connected with the oronasal mask body, and the separation membrane and the lower part of the oronasal mask body enclose to form an air suction cavity which closely covers the mouth of a human body; the separation diaphragm and the upper part of the oronasal mask body are enclosed to form an expiration cavity which closely covers the nose of a human body.
3. A forest firefighter emergency respirator as claimed in claim 2, wherein the one-way air inlet means includes an air inlet one-way valve and an air suction mouthpiece; the air suction mouthpiece is arranged inside the air suction cavity; the front end of the air inlet one-way valve is communicated with the air supply device air passage, and the rear end of the air inlet one-way valve is communicated with the air suction mouthpiece air passage.
4. The forest fireman emergency respirator of claim 3, wherein the one-way air inlet device further comprises an air inlet buffer bag, the air inlet buffer bag is arranged between the air supply device and the air inlet one-way valve, the front end of the air inlet buffer bag is communicated with the air supply device air passage, and the rear end of the air inlet buffer bag is communicated with the air inlet one-way valve air passage.
5. A forest firefighter emergency respirator as claimed in claim 4, wherein the air supply means comprises: the gas supply bottle is detachably connected with the gas inlet buffer bag, and when the gas supply bottle is connected with the gas inlet buffer bag, the gas supply bottle and the gas inlet buffer bag are kept in controllable gas path communication.
6. A forest fire fighter emergency respirator as set forth in claim 5, wherein the air supply further includes an air intake control connected to the air supply bottle, the air supply bottle supplying compressed air under control of the air intake control.
7. The forest fireman emergency respirator of claim 2, wherein the one-way air outlet device comprises a one-way air outlet valve, the one-way air outlet valve is communicated with the air passage of the breathing cavity, and the breathing cavity exhausts air to the external environment in one way through the one-way air outlet valve.
8. The emergency respirator for forest firefighters as claimed in claim 2, further comprising a fixing strap for a user to wear and fix the emergency respirator, wherein two ends of the fixing strap are detachably connected to two side wings of the oronasal mask body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020633213.9U CN212347481U (en) | 2020-04-24 | 2020-04-24 | Emergency respirator for forest firemen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020633213.9U CN212347481U (en) | 2020-04-24 | 2020-04-24 | Emergency respirator for forest firemen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212347481U true CN212347481U (en) | 2021-01-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020633213.9U Active CN212347481U (en) | 2020-04-24 | 2020-04-24 | Emergency respirator for forest firemen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212347481U (en) |
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2020
- 2020-04-24 CN CN202020633213.9U patent/CN212347481U/en active Active
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