CN111921110A - Mask isolated compressed oxygen self-rescuer - Google Patents
Mask isolated compressed oxygen self-rescuer Download PDFInfo
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- CN111921110A CN111921110A CN202010726718.4A CN202010726718A CN111921110A CN 111921110 A CN111921110 A CN 111921110A CN 202010726718 A CN202010726718 A CN 202010726718A CN 111921110 A CN111921110 A CN 111921110A
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- oronasal mask
- mask
- communicated
- air
- rescuer
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/02—Respiratory apparatus with compressed oxygen or air
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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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
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- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Emergency Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a mask isolated compressed oxygen self-rescuer which comprises a box body, wherein an oxygen tank is fixed in the box body, the top of the oxygen tank is communicated with an air outlet pipe, a throttle valve is installed on the front side of the upper end of the air outlet pipe, a pressure gauge is installed on the rear side of the upper end of the air outlet pipe, the top of the air outlet pipe is communicated with the bottom of an air bag, the air bag is communicated above the box body, an oronasal mask is communicated above the air bag, and protective glasses are fixed on the top of the oronasal mask. This isolated formula compressed oxygen self-rescuer of face guard is provided with the oronasal mask, safety glasses and rubber sealing strip, oronasal mask and safety glasses all fix at stranded personnel head through the elastic cord, oronasal mask all pastes tight stranded personnel face through rubber sealing strip with safety glasses simultaneously, separate through rubber sealing strip between oronasal mask and the safety glasses, when making safety glasses play the protection stranded personnel glasses, the problem that the vapor that contains in having avoided stranded personnel's expiration blockked the field of vision easily.
Description
Technical Field
The invention relates to the technical field of compressed oxygen self-rescuers, in particular to a mask isolation type compressed oxygen self-rescuer.
Background
When the coal mine has an accident, a large amount of toxic gas is contained in the mine tunnel, the compressed oxygen self-rescuer can provide a large amount of clean air for trapped people, and the trapped people can conveniently pass through the mine tunnel to complete self-rescue.
The existing compressed oxygen self-rescuer is usually only provided with a mouth tool and a nose clip, the protection measure only can play a protection role on the mouth and nose parts of trapped people, but part of toxic gas has strong irritation, the glasses of the trapped people are easy to stimulate, the trapped people are difficult to see the road, the trapped people are difficult to escape, in order to prevent poisoning of the trapped people caused by overhigh carbon dioxide concentration, the existing compressed oxygen self-rescuer generally discharges the gas exhaled by the trapped people, but the exhaled gas still contains a large amount of oxygen, the part of oxygen is wasted, the service life of the compressed oxygen self-rescuer is short, the utilization efficiency is low, and aiming at the problems, the existing equipment needs to be improved.
Disclosure of Invention
The invention aims to provide a mask isolation type compressed oxygen self-rescuer, which solves the problems that the conventional compressed oxygen self-rescuer provided in the background technology is only provided with a mouth tool and a nose clip, the protection measure only can protect the mouth and nose parts of trapped people, but part of toxic gas has strong irritation and easily stimulates the glasses of the trapped people, so that the trapped people cannot see the road clearly, and the trapped people are difficult to escape, and in order to prevent the trapped people from being poisoned due to overhigh carbon dioxide concentration, the conventional compressed oxygen self-rescuer usually discharges the gas exhaled by the trapped people, but the exhaled gas still contains a large amount of oxygen, and the part of oxygen is wasted, so that the use time of the compressed oxygen self-rescuer is short, and the utilization efficiency is low.
In order to achieve the purpose, the invention provides the following technical scheme: a mask isolated compressed oxygen self-rescuer comprises a box body, wherein an oxygen tank is fixed in the box body, an oxygen tank top is communicated with an outlet pipe, a throttling valve is installed on the front side of the upper end of the outlet pipe, a pressure gauge is installed on the rear side of the upper end of the outlet pipe, the top of the outlet pipe is communicated with the bottom of an air bag, the air bag is communicated above the box body, an oronasal mask is communicated above the air bag, protective glasses are fixed on the top of the oronasal mask, rubber sealing strips are bonded on the rear side of the protective glasses and the rear side of the oronasal mask, elastic bands are fixed on the left side of the protective glasses and the left side of the oronasal mask, a gas return pipe is communicated on the left side of the bottom of the oronasal mask, a first check valve is installed inside the gas return pipe, an air inlet pipe is, and the inside carbon dioxide absorbent that has stored of magazine, the oronasal mask constitutes the connected state through constituting between first check valve and the gasbag, and constitutes airtight state between gasbag and the oronasal mask, the oronasal mask constitutes airtight state through constituting between the second gasbag, and constitutes the connected state between gasbag and the oronasal mask, protective eyewear and oronasal mask pass through the rubber seal strip and constitute two sealed protective equipment that do not communicate.
Preferably, the lower end of the air inlet pipe is communicated with the top of the air bag, and the left lower side of the air bag is communicated with the lower end of the air return pipe.
Preferably, the carbon dioxide absorbent comprises calcium hydroxide as a main component, and carbon dioxide is uniformly arranged in the material box.
Preferably, one deck litmus is paintd on the magazine surface, will miss out when the magazine appears damaged carbon dioxide absorbent, and the bluish purple litmus and the carbon dioxide absorbent reaction bluish purple litmus of surface will become pink, can remind the staff magazine like this to have damaged and need change, prevent because the damage of magazine when using, the emergence of the unable condition of self-rescuer appears.
Compared with the prior art, the invention has the beneficial effects that: the mask isolation type compressed oxygen self-rescuer,
(1) the compressed oxygen self-rescuer is provided with an air return pipe, an air inlet pipe and a material box, wherein the first one-way valve and the second one-way valve are matched to control the flow direction of air flow, when trapped people inhale air, air in the air bag enters the mouth-nose mask through the air inlet pipe, when the trapped people exhale air, the air in the air bag returns to the interior of the air bag through the air return pipe, and when the air passes through the material box on the air return pipe, a carbon dioxide absorbent in the material box uniformly absorbs carbon dioxide in the air, so that the content of the carbon dioxide is reduced, the effect of recycling the exhaled air of the trapped people is facilitated, and the;
(2) be provided with the oronasal mask, safety glasses and rubber sealing strip, oronasal mask and safety glasses all fix at stranded personnel head through the elastic cord, and oronasal mask and safety glasses all paste tight stranded personnel face through rubber sealing strip simultaneously, separate through rubber sealing strip between oronasal mask and the safety glasses, when making safety glasses play the protection stranded personnel glasses, have avoided the steam that contains in the stranded personnel exhale to block the problem in the field of vision easily.
Drawings
FIG. 1 is a schematic cross-sectional front view of the present invention in an expanded state;
FIG. 2 is a schematic rear sectional view of the mask of the present invention in an expanded state;
FIG. 3 is a schematic front sectional view of the storage state of the present invention;
FIG. 4 is a schematic top sectional view of the storage state of the present invention.
In the figure: 1. the oxygen-enriched air-conditioning device comprises a box body, 2, an oxygen tank, 3, an air outlet pipe, 4, a throttling valve, 5, a pressure gauge, 6, an air bag, 7, an oronasal mask, 8, protective glasses, 9, a rubber sealing strip, 10, an elastic band, 11, an air return pipe, 12, a first check valve, 13, an air inlet pipe, 14, a second check valve, 15, a material box, 16 and a carbon dioxide absorbent.
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.
Referring to fig. 1-4, the present invention provides a technical solution: mask isolated compressed oxygen self-rescuer, as shown in fig. 1, fig. 2 and fig. 3, an oxygen tank 2 is fixed in a box body 1, the top of the oxygen tank 2 is communicated with an outlet pipe 3, a throttle valve 4 is installed on the front side of the upper end of the outlet pipe 3, a pressure gauge 5 is installed on the rear side of the upper end of the outlet pipe 3, the top of the outlet pipe 3 is communicated with the bottom of an air bag 6, the air bag 6 is communicated with the upper part of the box body 1, an oronasal mask 7 is communicated with the upper part of the air bag 6, protective glasses 8 are fixed on the top of the oronasal mask 7, the oronasal mask 7 is communicated with the air bag 6 through a first one-way valve 12, a closed state is formed between the air bag 6 and the oronasal mask 7, when a trapped person exhales, air leaves the oronasal mask 7 through a return pipe 11 under the action of positive pressure, the oro, when stranded personnel breathe in, make the air pass through intake pipe 13 entering mouth nose cup 7 under the effect of negative pressure, 8 rear sides of safety glasses and 7 rear sides of mouth nose cup all bond there is rubber seal strip 9, and 8 left and right sides of safety glasses and 7 left and right sides of mouth nose cup all are fixed with elastic cord 10, safety glasses 8 and mouth nose cup 7 constitute two sealed protective equipment that do not communicate through rubber seal strip 9, the easy adhesion of the steam that produces when having solved stranded personnel and exhaling produces is at the problem of 8 inboard production water smoke of safety glasses.
As shown in fig. 1, 2 and 4, the left side of the bottom of the oronasal mask 7 is communicated with a gas return pipe 11, a first one-way valve 12 is arranged in the gas return pipe 11, the right side of the bottom of the oronasal mask 7 is communicated with a gas inlet pipe 13, and a second one-way valve 14 is arranged in the air inlet pipe 13, the lower end of the air inlet pipe 13 is communicated with the top of the air bag 6, the left lower side of the air bag 6 is communicated with the lower end of the air return pipe 11, the flowing distance of the circulating air in the air bag 6 is prolonged, the air in the air bag 6 is more uniformly mixed, the middle part of the air return pipe 11 is provided with a material box 15, and the carbon dioxide absorbent 16 is stored in the material box 15, the main component of the carbon dioxide absorbent 16 is calcium hydroxide, and carbon dioxide is evenly arranged in the material box 15, air exhaled by trapped people is evenly contacted with the carbon dioxide absorbent 16, and the carbon dioxide absorbent 16 is prevented from evenly and quickly absorbing carbon dioxide in the exhaled air.
The working principle is as follows: when the mask isolated compressed oxygen self-rescuer is used, firstly, the hasp is opened, the case cover is taken down, the oronasal mask 7 and the protective glasses 8 are taken up, the oronasal mask 7 and the protective glasses 8 are worn on the head of a trapped person through the elastic band 10, at the moment, the oronasal mask 7 and the rubber sealing strip 9 on the rear side of the protective glasses 8 are attached to the face of the trapped person, the sealing effect is achieved, the throttle valve 4 is opened simultaneously, the speed of oxygen discharged by the oxygen tank 2 through the air outlet pipe 3 is controlled, oxygen in the oxygen tank 2 enters the air bag 6 through the air outlet pipe 3, the trapped person inhales air, air in the air bag 6 enters the inside of the oronasal mask 7 through the air inlet pipe 13 under the action of negative pressure, then the trapped person exhales, under the action of positive pressure, the air in the oronasal mask 7 returns to the bottom of the air bag 6 through the air return pipe 11, the exhaled air is uniformly mixed with the air in, the carbon dioxide absorbent 16 in the material box 15 absorbs carbon dioxide in the expired air rapidly, the problem that the concentration of carbon dioxide rises due to the recycling of air, so that trapped people carbon dioxide is caused is solved, the glasses 8 protect the glasses of the trapped people from being affected by irritant gas, the trapped people can observe road conditions and get away from dangerous areas conveniently, the pressure gauge 5 facilitates the trapped people to judge the oxygen content in the oxygen tank 2, and therefore all work is completed, and the content which is not described in detail in the specification belongs to the prior art which is known to professional technicians in the field.
Maintenance and servicing: the mask isolation type compressed oxygen self-rescuer (hereinafter referred to as a self-rescuer) should be checked frequently, 5 indexes such as pressure, positive and negative pressure airtightness, exhaust pressure and quantitative oxygen supply of an oxygen tank 2 are checked generally every half year, oxygen is filled immediately when the pressure of the oxygen tank 2 is reduced (the oxygen for filling the self-rescuer should meet the regulation of GB 8982-1998 medical oxygen), adjustment and repair are required when the specified indexes are not met, and if the instrument performance is doubted due to violent impact and the like during carrying, the 5 indexes are also checked and repaired. The oxygen tank 2 is subjected to a hydrostatic test every 3 years, and the carbon dioxide absorbent is replaced every half year.
After each use, the carbon dioxide absorbent meeting the MT 454-2008 standard needs to be replaced, and the carbon dioxide absorbent is filled while vibrating during filling, so that the filling amount is about 500 g.
The oxygen tank 2 is filled with oxygen (oxygen concentration is more than or equal to 99.5%) meeting the requirements of GB 8982-2009, and the pressure is above 20 MPa. The air bag is assembled after oxygen is filled and medicine is filled, great care must be taken during assembly, the air outlet pipe 3, the air return pipe 11 and the air inlet pipe 13 in the air bag 6 are arranged, and the air bag cannot be twisted, otherwise, the exhalation resistance is increased, and the air path of exhalation and air return can be blocked due to serious twisting.
Once the self-rescuer is used, although the time is less than 45 minutes, the self-rescuer is required to be inflated again, charged and inspected. After each use, the air bag 6, the air outlet pipe 3, the air return pipe 11, the air inlet pipe 13 and the mouth-nose mask 7 are cleaned, disinfected and dried.
After the self-rescuer is assembled, the air tightness of the self-rescuer is checked, and the water column change is qualified that the water column does not exceed 50Pa within 1min when the positive pressure is 980Pa or the negative pressure is 800 Pa.
During storage, the self-rescuer should avoid direct sunlight, should be strictly prevented from being mixed with grease in one place, the storage environment should be dry, no corrosive gas exists, the temperature should be above 0 ℃, and the custodian and the operator of the oxygen cylinder must strictly comply with relevant regulations and regulations.
The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for simplicity of description only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be considered limiting of the claimed invention.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides an isolated formula compressed oxygen self-rescuer of face guard, includes box (1), its characterized in that: the oxygen tank (2) is fixed in the box body (1), the top of the oxygen tank (2) is communicated with the air outlet pipe (3), the throttling valve (4) is installed on the front side of the upper end of the air outlet pipe (3), the pressure gauge (5) is installed on the rear side of the upper end of the air outlet pipe (3), the top of the air outlet pipe (3) is communicated with the bottom of the air bag (6), the air bag (6) is communicated with the upper portion of the box body (1), the air bag (6) is communicated with the oronasal mask (7), the protective glasses (8) are fixed on the top of the oronasal mask (7), the rubber sealing strips (9) are bonded on the rear sides of the protective glasses (8) and the rear sides of the oronasal mask (7), elastic bands (10) are fixed on the left side of the protective glasses (8) and the left side of the oronasal mask (7), the air return pipe (11) is communicated with the left side, oronasal mask (7) bottom right side intercommunication has intake pipe (13), and intake pipe (13) internally mounted has second check valve (14), muffler (11) middle part is provided with magazine (15), and magazine (15) inside storage has carbon dioxide absorbent (16), oronasal mask (7) constitute the intercommunication state through between first check valve (12) and gasbag (6), and constitute airtight state between gasbag (6) and oronasal mask (7), oronasal mask (7) constitute airtight state through between second gasbag (6), and constitute the intercommunication state between gasbag (6) and oronasal mask (7), protective spectacles (8) and oronasal mask (7) constitute two sealed protective equipment that do not communicate through rubber seal strip (9).
2. The mask-insulated compressed oxygen self-rescuer of claim 1, wherein: the lower end of the air inlet pipe (13) is communicated with the top of the air bag (6), and the lower left side of the air bag (6) is communicated with the lower end of the air return pipe (11).
3. The mask-insulated compressed oxygen self-rescuer of claim 1, wherein: the carbon dioxide absorbent (16) mainly comprises calcium hydroxide, and carbon dioxide is uniformly arranged inside the material box (15).
4. The mask-insulated compressed oxygen self-rescuer of claim 1, wherein: a layer of litmus is smeared on the surface of the material box (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010726718.4A CN111921110A (en) | 2020-07-25 | 2020-07-25 | Mask isolated compressed oxygen self-rescuer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010726718.4A CN111921110A (en) | 2020-07-25 | 2020-07-25 | Mask isolated compressed oxygen self-rescuer |
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| Publication Number | Publication Date |
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| CN111921110A true CN111921110A (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010726718.4A Pending CN111921110A (en) | 2020-07-25 | 2020-07-25 | Mask isolated compressed oxygen self-rescuer |
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| CN (1) | CN111921110A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113679970A (en) * | 2021-08-10 | 2021-11-23 | 曹爱秋 | Compressed oxygen self-rescuer for mine |
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2020
- 2020-07-25 CN CN202010726718.4A patent/CN111921110A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113679970A (en) * | 2021-08-10 | 2021-11-23 | 曹爱秋 | Compressed oxygen self-rescuer for mine |
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