CN111184954B - Portable self-rescue respirator - Google Patents
Portable self-rescue respirator Download PDFInfo
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- CN111184954B CN111184954B CN202010075086.XA CN202010075086A CN111184954B CN 111184954 B CN111184954 B CN 111184954B CN 202010075086 A CN202010075086 A CN 202010075086A CN 111184954 B CN111184954 B CN 111184954B
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/08—Respiratory apparatus containing chemicals producing oxygen
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- 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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- 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
- A62B9/006—Indicators or warning devices, e.g. of low pressure, contamination
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- 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
- A62B9/06—Mouthpieces; Nose-clips
Abstract
The invention relates to a portable self-rescue respirator, belongs to the technical field of fire emergency devices, and solves the problems that the self-rescue respirator in the prior art is complex to wear and use, high in breathing temperature, incapable of judging product effectiveness and difficult to position trapped people. The self-rescue respirator comprises an oronasal mask, a breathing tube, an oxygen generation module, an air bag, an alarm positioning unit, a shell and an oxygen generating agent; the oral-nasal mask, the breathing tube and the oxygen generation module are sequentially connected; the oxygen generating module comprises an oxygen generating tank and a four-way unit, the oxygen generating tank is connected with the four-way unit, the air bag is connected with the oxygen generating tank, and the oxygen generating agent is arranged in the oxygen generating tank; the alarm positioning unit is arranged on the air bag, and the shell is covered on the oxygen generation module. The self-rescue respirator is convenient to carry and use, the oxygen production temperature is reduced, the experience is comfortable, whether the oxygen production agent fails or not can be visually determined, and the self-contained alarm positioning function is convenient for rescue workers to determine the position of a trapped person.
Description
Technical Field
The invention relates to the technical field of fire self-rescue devices, in particular to a portable self-rescue respirator.
Background
When a fire-fighting fire accident occurs, the trapped people in the scene can adopt a wet towel to cover the mouth and the nose or adopt self-rescue measures such as wearing a filtering breathing mask or a compressed gas cylinder respirator and the like, and can also adopt means such as wearing a chemical oxygen respirator to evacuate the scene and escape for self-rescue. However, the oxygen content in the air after violent combustion is low, toxic and harmful components in smoke are very complex, the wet towel and the filtering type breathing mask can only filter a few specific toxic gases, the expected filtering and purifying effect is difficult to achieve, the respirator is not suitable for the environment with the oxygen concentration lower than 17%, the life safety of escape personnel is difficult to guarantee practically, and dangerous accidents such as explosion are easy to occur due to the fact that the compressed air bottle type respirator belongs to a high-pressure container. Therefore, the chemical oxygen respirator is the breathing protection rescue equipment in the operation scenes of fire fighting, chemical engineering, coal mines, closed spaces and the like which are ideal at present.
The oxygen-saving breathing device is based on KO2Air regenerant and CO as main components2、H2The device is developed by taking the principle that fresh air for breathing is generated by the O reaction, is not limited by the gas components of the surrounding atmosphere environment in use, and is an ideal emergency escape self-rescuer. However, since the chemical oxygen mode generates oxygen and releases heat, the gas regeneration tank of the chemical oxygen rescue breathing apparatus generates local high temperature, which is easy to cause secondary damage to the wearing personnel, so that the chemical oxygen rescue breathing apparatus is mainly equipped in trained professional fire rescue teams at present and is not equipped in most public places or families. How to reduce the temperature of a gas regeneration tank of a chemical oxygen rescue breathing device and prevent the damage of local high temperature to human bodies in the using process becomes one of key technologies for the application and popularization of the chemical oxygen rescue breathing device.
Meanwhile, the existing chemical oxygen respirator is complex to wear and use, poor in safety and capable of influencing actions; and the product failure or whether the upper limit of the protection time is reached cannot be intuitively judged; in the case of people being trapped, it is inconvenient for rescue workers to locate the trapped person by relying only on the reflective material.
Disclosure of Invention
In view of the above analysis, the embodiment of the present invention aims to provide a portable self-rescue respirator, so as to solve the problems that the existing self-rescue respirator is complex in wearing and use, high in breathing temperature, incapable of judging product effectiveness, and difficult in positioning trapped people.
The embodiment of the invention provides a portable self-rescue respirator, which comprises an oronasal mask, a breathing tube, an oxygen generation module, an air bag, an alarm positioning unit, a shell and an oxygen generating agent, wherein the oronasal mask is connected with the breathing tube; the oral-nasal mask, the breathing tube and the oxygen generation module are sequentially connected; the oxygen generating module comprises an oxygen generating tank and a four-way unit, the oxygen generating tank is connected with the four-way unit, the air bag is connected with the oxygen generating tank, and the oxygen generating agent is arranged in the oxygen generating tank; the alarm positioning unit is arranged on the air bag, and the shell is covered on the oxygen generation module.
Further, the oxygen generating tank comprises an air inlet pipe, an air outlet pipe and an oxygen generating tank main body; the oxygen generating tank main body is internally provided with a heat conducting plate.
Furthermore, a plurality of pipelines with net-shaped pipe walls are arranged between the air inlet pipe and the air outlet pipe, and the pipelines are in contact with the inner wall of the oxygen generating tank main body.
Further, the four-way unit comprises a first channel, a second channel, a third channel and a fourth channel, and the second channel, the third channel and the fourth channel are all provided with one-way valves.
Furthermore, the air bag is U-shaped after being inflated, and the oxygen generating tank is embedded in the U-shaped; the air bag comprises a first air outlet, a second air outlet and an air inlet.
Furthermore, the first channel is connected with one end of the breathing tube, the second channel is connected with the first air outlet, the third channel is connected with the second air outlet, the fourth channel is connected with the air inlet pipe, and the air outlet pipe is connected with the air inlet.
Further, the oxygen generation module further comprises an oxygen generation tank mounting seat and a heat dissipation cover, and the heat dissipation cover covers the oxygen generation tank and the four-way unit.
Further, the casing is provided with the easy baffle of breaking down, the casing is connected with the oxygen generating tank mount pad.
Furthermore, a box breaking block is fixedly arranged on the part of the neck strap positioned in the shell; when the neck strap is pulled up, the box breaking block breaks the easy-to-break baffle, so that the shell and the oxygen generating tank mounting seat fall off.
Further, the neck strap is respectively connected with a switch of the alarm positioning unit and a sealing plug in the oral-nasal mask; when the shell and the oxygen generating tank mounting seat fall off, the switch is opened, and the sealing plug falls off.
Compared with the prior art, the invention can realize at least one of the following beneficial effects:
(1) the heat-conducting plate made of the heat pipe is arranged in the oxygen generating tank main body, so that heat in the oxygen generating tank main body can be quickly conducted to the wall surface of the oxygen generating tank main body, and then is dissipated by the heat dissipation cover, the oxygen generating reaction temperature in the oxygen generating tank main body is reduced, the temperature comfort degree during gas breathing is improved, and the problem of secondary damage caused by the fact that personnel inhale high-temperature gas is solved;
(2) the pipeline with a plurality of net-shaped pipe walls is arranged between the air inlet pipe and the air outlet pipe, the pipeline is in contact with the inner wall of the oxygen generating tank main body, the flowing of the gas in the tank body is more uniform due to the net-shaped structure of the pipeline, the gas can be diffused to the oxygen generating agent around the gas along the way and is in full contact reaction with the oxygen generating agent around the pipeline, the oxygen generating efficiency is improved by 5-10%, and meanwhile, the heat dissipation efficiency is improved by more than 10%;
(3) the second channel, the third channel and the fourth channel are all provided with the one-way valves, the first channel is connected with one end of the breathing tube, the second channel is connected with the first air outlet, the third channel is connected with the second air outlet, the fourth channel is connected with the air inlet pipe, the air outlet pipe is connected with the air inlet, the circulating oxygen production that the gas exhaled by the human body enters the air bag through the oxygen production tank and then directly enters the respiratory system of the human body from the air bag by bypassing the oxygen production tank is realized by only one breathing tube, the structure for realizing the circulating oxygen production by the traditional two-tube or three-tube type is simplified, and the use process is more convenient, the influence on the movement of personnel is less, the temperature of the gas is increased by the fact that the gas passes through the oxygen generating tank twice in the breathing process caused by reciprocating airflow is avoided, the oxygen generating temperature is reduced, the breathing temperature of the respirator is lower than that of the existing relevant standard by more than 20 ℃, and the breathing comfort level is improved;
(4) the air bag after being inflated is set to be U-shaped, the oxygen generating tank is embedded in the U-shaped, and a vest-type breathing air bag design is adopted, so that the main body of the respirator is distributed in front of the chest, and the respirator is small in structure after being folded, and is more comfortable and convenient to wear and use;
(5) the mask, the breathing tube, the oxygen generating module, the uninflated air bag and the alarm positioning unit are covered by connecting the shell with the oxygen generating tank mounting seat, the self-rescue respirator and the shell share a bottom plate (the oxygen generating tank mounting seat), and the design that the self-rescue respirator and the shell share the oxygen generating tank mounting seat is adopted, so that the overall volume of the self-rescue respirator in a packaging state is reduced;
(6) the oxygen generating tank mounting seat is provided with a neck belt, when the shell is connected with the oxygen generating tank, the neck belt is exposed out of the shell, only one part of the neck belt is positioned outside the shell after the self-rescue respirator is packaged, and the neck belt is marked with a use instruction guide, so that a user can see a use prompt before using the oxygen generating tank, and the oxygen generating tank is convenient and fast to use;
(7) the box breaking block is fixedly arranged on the part of the neck strap in the shell, and when the neck strap is pulled up, the box breaking block breaks a buckle and an easy-to-fold baffle of the shell, so that the shell and the oxygen generating tank mounting seat fall off, and the self-rescue respirator can enter a working state, and is simple in structure and easy to operate;
(8) the neck strap is connected with a switch of the alarm positioning unit, when the shell and the oxygen generating tank mounting seat fall off, the switch is turned on, sound and light alarm is automatically carried out, rescue workers can conveniently determine the position of a trapped person, the alarm positioning unit comprises a sound and light alarm module and a positioning communication module, and when the people are trapped, the position information of the respirator can be received by a terminal conforming to a communication protocol, so that rescue is facilitated;
(9) the observation window is arranged at the top of the heat dissipation cover and arranged along the airflow direction, and the scale lines are arranged on the edge of the observation window, so that a user or an inspector can conveniently determine whether the oxygen generating agent fails or reaches the rated protection time through the observation window, a user can visually master the residual protection time of the respirator, and the use safety of the self-rescue respirator is ensured;
(10) through set up the louvre at the top and the side of heat exchanger that dispel the heat, the position of louvre corresponds with the position of producing the oxygen jar main part, has improved the radiating efficiency of producing the oxygen jar main part.
In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
FIG. 1 is a schematic view of the overall construction of a respirator;
FIG. 2 is a top view of the respirator with the oronasal mask and breathing tube removed;
FIG. 3 is an exploded view of the respirator with the breathing hose removed;
FIG. 4 is a schematic diagram of the oxygen generating module of the respirator;
FIG. 5 is a schematic view of the respirator with the heat sink removed;
FIG. 6 is a schematic cross-sectional view of an oxygen generating canister of the respirator;
FIG. 7 is a front view of the shell structure of the respirator;
FIG. 8 is a perspective view of the shell structure of the respirator;
FIG. 9 is a perspective view of the oronasal mask construction of the respirator.
Reference numerals:
1-an oronasal mask; 2-a breathing tube; 21-a first quick connector; 3-an oxygen generating module; 31-an oxygen generating tank; 311-an air inlet pipe; 312-an air outlet pipe; 313-an oxygen generating tank body; 314-a connection tube; 315-a pipeline; a 32-four-way unit; 321-a first channel; 322-a second channel; 323-a third channel; 324-a fourth channel; 325-second quick connector; 326-third quick connector; 327-fourth quick connector; 33-oxygen generating tank mounting seat; 34-a heat dissipation cover; 341-circular heat dissipation hole; 342-bar heat dissipation groove; 343-observation window; 4-air bag; 41-bar-shaped reflecting mark; 42-SOS cursor-reflecting; 5-an alarm positioning unit; 6-a shell; 61-frangible barrier.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
One embodiment of the invention, as shown in fig. 1-9, discloses a portable self-rescue respirator, which comprises an oronasal mask 1, a breathing tube 2, an oxygen generation module 3, an air bag 4, an alarm positioning unit 5, a shell 6 and an oxygen generating agent; oronasal mask 1 is connected with the one end of breathing tube 2, produces oxygen module 3 and is connected with the other end of breathing tube 2, produces oxygen module 3 and includes producing oxygen jar 31 and four-way unit 32, produces oxygen jar 31 and is connected with four-way unit 32, and gasbag 4 is connected with producing oxygen jar 31, and alarm positioning unit 5 sets up on gasbag 4, and the oxygen generating agent sets up in producing oxygen jar 31, and 6 covers of casing are established on producing oxygen module 3.
Compared with the prior art, in the embodiment, the four-way unit is adopted, the gas exhaled by the human body enters the air bag through the oxygen generating tank and then directly enters the circulating oxygen generation system of the human body respiratory system from the air bag by bypassing the oxygen generating tank by using only one breathing tube, the traditional two-tube or three-tube structure for realizing the circulating oxygen generation is simplified, the use process is more convenient, and the influence on the action of personnel is less; meanwhile, the phenomenon that the temperature of the gas rises when the gas passes through the oxygen generating tank twice in the breathing process caused by reciprocating airflow is avoided, so that the air suction temperature of the respirator is lower than that of the existing relevant standard by more than 20 ℃, and the comfort level of oxygen inhalation of personnel is improved.
In the embodiment, the oronasal mask 1 is connected with the breathing tube 2 through the first quick connector 21, and the oronasal mask 1 is provided with the head bandage, so that the oronasal mask 1 can be conveniently fixed to be closely fit with the face of a human body; the interface of the oronasal mask 1 and the breathing hose 2 adopts a universal interface, and other forms of oronasal masks can be conveniently replaced. The breathing tube 2 is a flexible hose so that the self-rescue respirator can be bent and twisted when being packaged and used.
The oxygen generating tank 31 includes an inlet pipe 311, an outlet pipe 312, and an oxygen generating tank main body 313, and the oxygen generating tank main body 313 is exemplarily a rectangular parallelepiped shaped case. The oxygen generating agent is arranged in the oxygen generating tank main body 313, the air inlet pipe 311 and the air outlet pipe 312 are symmetrically arranged on the side surface of the oxygen generating tank main body 313, and the air outlet pipe 312 is connected with the connecting pipe 314 in an interference manner; in order to facilitate sealing and limiting, a step is arranged in the middle of the connecting pipe 314, one end of the connecting pipe 314 is inserted into the air outlet pipe 312, the limiting is realized by the step on the connecting pipe 314, in order to avoid the influence of overlong inserted part of the connecting pipe 314 on the flow of gas in the oxygen generating tank main body 313, the length of the inserted part is less than or equal to that of the air outlet pipe 312, a sealing ring is arranged at the step position, and the leakage of oxygen at the connecting part is avoided; the other end of the connecting pipe 314 is provided with a round thin rubber pad which is adhered to the air inlet of the air bag 4 to form a sealed air channel; the oxygen generating tank main body 313 is provided with filter screens at the connecting positions of the air inlet pipe 311 and the air outlet pipe 312 respectively, and particularly, the filter screens are made of metal meshes and quartz cotton sheets, so that the situation that oxygen generating agent powder leaks out through the air inlet pipe 311 and the air outlet pipe 312 when the self-rescue respirator is stored or used, and other parts are damaged due to local high temperature or irritate a respiratory system of a human body is avoided.
It should be noted that, in order to facilitate the determination of whether the oxygen generating agent has failed or has reached the rated protection time by the user or the inspector, the user can intuitively know the remaining protection time of the respirator, the oxygen generating tank main body 313 is made of a transparent material, the material for manufacturing the oxygen generating tank main body 313 cannot react with the oxygen generating agent, and the transparent material has good thermal conductivity in order to facilitate the conduction of heat in the oxygen generating process; in order to meet the requirements of a specific industry standard, in the coal industry, the oxygen generating tank body 313 is made of metal materials, in order to facilitate the observation of the state of the oxygen generating agent through the observation window 343 on the outer heat dissipation cover 34, a strip window is arranged on the oxygen generating tank body 313, the length direction of the strip window is consistent with the air flow direction, and the strip window is sealed by a glass strip.
Considering that the oxygen can be released when the oxygen is generated in a chemical oxygen mode, the oxygen generating tank 31 of the self-rescue respirator generates local high temperature, and secondary damage to users is easily caused, in order to improve the safety of the self-rescue respirator in the using process, a heat conducting plate is arranged in the oxygen generating tank main body 313 and is made of a heat pipe, the heat pipe is a heat transfer element which realizes heat transfer by means of phase change of working liquid in the heat pipe, the heat conduction principle and the quick heat transfer property of a phase change medium are fully utilized, and the heat of a heating object is quickly transferred to the outside of a heat source through the heat pipe, for example, the heat pipe is a copper-water heat pipe, a carbon steel-water heat pipe or a sodium heat pipe. Through making the heat-conducting plate by the heat pipe in the inside setting of oxygen generating tank main part, can conduct the inside heat of oxygen generating tank main part 313 to the wall of oxygen generating tank main part 313 rapidly, dispel the heat by heat exchanger 34 again, reduced oxygen generating tank main part 313 in produce oxygen reaction temperature, the comfort level of temperature when having improved gaseous breathing has avoided personnel to take place the problem of secondary damage because of inhaling high-temperature gas.
In order to improve the oxygen generating efficiency and further improve the heat radiation efficiency, a plurality of pipes 315 having a mesh pipe wall are provided between the inlet pipe 311 and the outlet pipe 312, and the pipes 315 are in contact with the inner wall of the oxygen generating tank main body 313. Because the pipeline 315 is of a net structure, the gas flows more uniformly in the oxygen generating tank main body 313, the gas in the pipeline 315 can diffuse towards the oxygen generating agents around along the way, fully contacts the oxygen generating agents at different positions and reacts, the oxygen generating efficiency is improved by 5% -10%, meanwhile, the pipeline 315 contacts with the inner wall of the oxygen generating tank main body 313, and the heat dissipation efficiency is improved by more than 10%. It should be noted that, in order to simplify the assembly difficulty, the heat conducting plate and the pipe 315 are designed integrally.
The four-way unit 32 comprises a first channel 321, a second channel 322, a third channel 323 and a fourth channel 324, wherein the second channel 322 is communicated with the third channel 323 to form a pipeline, the shape and the size of the second channel 322 are consistent with those of the third channel, the first channel 321 is vertically arranged in the middle of the pipeline communicated with the second channel 322 and the third channel 323, the fourth channel 324 is vertically arranged in the middle of the pipeline communicated with the second channel 322 and the third channel 323 and is vertical to the first channel 321, the four-way structure is arranged to facilitate the circular flow of gas, an expiration hose and an inspiration hose are combined into one hose, and the wearing structure is simplified.
Specifically, first passageway 321 is connected with breathing pipe 2 through second quick-operation joint 325, and second quick-operation joint 325 buckle makes things convenient for breathing pipe 2 installation and change at the port of first passageway 321, and second quick-operation joint 325 and first passageway 321 joint position are provided with the sealing washer, avoid leaking gas.
Specifically, the second channel 322 is connected with the first air outlet of the air bag 4 through the third quick connector 326, and the third quick connector 326 is fastened at the port of the second channel 322, so that the assembly and disassembly are convenient; a sealing ring is arranged at the clamping position of the third quick connector 326 and the second channel 322, so that air leakage is avoided; the third quick connector 326 is provided with a round thin rubber pad which is bonded at the first air outlet of the air bag 4 to form a closed air channel; be provided with the check valve in the third quick-operation joint 326, guarantee that the oxygen in the gasbag 4 can flow into in the second passageway 322, and the gas in the second passageway 322 does not get into the gasbag 4, makes only the fresh air that oxygen concentration is high in the gasbag 4, guarantees the security of self-rescue respirator when using.
Specifically, the third channel 323 is connected with the second air outlet of the air bag 4 through the fourth quick connector 327, and the fourth quick connector 327 is fastened at the port of the third channel 323, so that the assembly and disassembly are convenient; a sealing ring is arranged at the clamping position of the fourth quick connector 327 and the third channel 323, so that air leakage is avoided; the fourth quick connector 327 is provided with a round thin rubber pad, which is bonded at the second air outlet of the air bag 4 to form a closed air channel; a one-way valve is arranged in the fourth quick connector 327 to ensure that oxygen in the air bag 4 can flow into the third channel 323, and gas in the third channel 323 does not enter the air bag 4, so that only fresh air with high oxygen concentration exists in the air bag 4, and the safety of the self-rescue respirator in use is ensured.
Specifically, the fourth channel 324 is inserted into the air inlet pipe 311, and is limited by a step arranged on the fourth channel 324, so that the length of the inserted part is less than or equal to that of the air inlet pipe 311, the situation that the flow of gas in the oxygen generating tank main body 313 is influenced by the overlong inserted part and the arrangement of a heat conducting plate and a pipeline 315 is interfered is prevented, and a sealing ring is arranged at the step position to avoid the leakage of oxygen at the joint; a one-way valve is arranged in the fourth passage 324 to ensure that the gas in the fourth passage 324 can enter the oxygen generating tank main body 313, but the gas in the oxygen generating tank main body 313 cannot enter the fourth passage 324, so that the gas with high carbon dioxide concentration can only enter the oxygen generating tank main body 313 through the fourth passage 324 to react with the oxygen generating agent.
In this embodiment, the one-way valves are disposed at the joints with the second channel 322, the third channel 323, and the fourth channel 324, the first channel 321 is connected with one end of the breathing tube 2, the second channel 322 is connected with the first air outlet, the third channel 323 is connected with the second air outlet, the fourth channel 324 is connected with the air inlet tube 311, and the air outlet tube 312 is connected with the air inlet. During the use, the gas that user of service expired flows through fourth passageway 324, intake pipe 311 by first passageway 321, and gas is inside in oxygen generating tank main part 313 and is reacted with the oxygen generating agent, and fresh air passes through outlet duct 312 and gets into gasbag 4, and when the human body breathed in, the gas in gasbag 4 gets into four-way unit 32 through first gas outlet, second gas outlet in, and it breathes to converge at last gets into first passageway 321 through breathing pipe 2 and supplies user of service to breathe.
In the embodiment, the breathing device only utilizes one breathing tube 2 to realize that the gas exhaled by the human body enters the air bag 4 through the oxygen generating tank 31, and then bypasses the oxygen generating tank 31 from the air bag 4 to directly enter the circulating oxygen generation of the respiratory system of the human body, the structure for realizing the circulating oxygen generation by the traditional two tubes or three tubes is simplified, the use process is more convenient and faster, the action influence on personnel is less, meanwhile, the phenomenon that the gas temperature is increased through the oxygen generating tank 31 twice in the breathing process caused by reciprocating airflow is avoided, the temperature of oxygen generation is reduced, the breathing temperature of the respirator is lower than that of the existing relevant standard by more than 20 ℃, and the breathing comfort level is improved.
The oxygen generating module 3 also comprises an oxygen generating tank mounting seat 33 and a heat dissipation cover 34, a mounting frame matched with the assembled oxygen generating tank 31 and the four-way unit 32 is arranged on the oxygen generating tank mounting seat 33, and grid bulges are arranged on the oxygen generating tank mounting seat 33 in order to increase the strength of the oxygen generating tank mounting seat 33; the heat dissipation cover 34 is connected with the oxygen generating tank mounting seat 33, for example, the heat dissipation cover 34 is a cuboid, a through hole is formed in the side surface corresponding to the first channel 321, the diameter of the through hole is equal to the outer diameter of the first channel 321 and smaller than the diameter of the second quick connector 325, arch-shaped openings are formed in the side surfaces corresponding to the second channel 322, the third channel 323 and the fourth channel 324, the heat dissipation cover 34 is fixed through the second quick connector 325, and the heat dissipation cover 34 covers the oxygen generating tank 31 and the four-way unit 32; in order to avoid oxygen generating tank main part 313 to scald heat dissipation cover 34, can also reach good radiating effect simultaneously, heat dissipation cover 34 sets up certain interval with oxygen generating tank main part 313, and is exemplary, and the interval is 3 ~ 5mm, and at this moment, circular thin cushion all exposes at heat dissipation cover 34 to be connected with gasbag 4.
Further, in order to rapidly dissipate heat generated in the oxygen production process, the upper bottom surface of the heat dissipation cover 34 is provided with a circular heat dissipation hole 341, the symmetrical side surfaces of the heat dissipation cover 34 are provided with a strip-shaped heat dissipation groove 342, the positions of the circular heat dissipation hole 341 and the strip-shaped heat dissipation groove 342 correspond to the position of the oxygen production tank main body 313, the plurality of uniformly distributed circular heat dissipation holes 341 cover the upper bottom surface of the oxygen production tank main body 313, and the plurality of uniformly distributed strip-shaped heat dissipation grooves 342 cover the symmetrical side surfaces of the oxygen production tank main body 313.
In order to facilitate observation of the state of the oxygen generating agent, an observation window 343 is provided on the upper bottom surface of the heat dissipation cover 34, specifically, the observation window 343 is provided in the middle of the plurality of uniformly distributed circular heat dissipation holes 341 and is provided along the airflow direction, and the length of the observation window 343 is equal to the length of the oxygen generating tank body 313. The color and the form change of the internal oxygen generating agent can be seen through the observation window 343, the oxygen generating agent is yellow when not reacting, the oxygen generating agent is white after completely reacting, and the reaction process is advanced along the airflow direction, so that whether the oxygen generating tank 31 fails or not can be judged through the color of the observation window 343, and the safe and effective self-rescue respirator is ensured. The edge of observation window 343 is provided with the scale mark, through the scale at observation window 343 edge, can predict remaining guard time in the use, lets the user directly perceivedly master the remaining guard time of respirator, ensures self-rescue respirator's safety in utilization.
In this embodiment, gasbag 4 is the U type after aerifing, produces oxygen jar 31 and inlays to establish in U type mouth, and gasbag 4 includes first gas outlet, second gas outlet and air inlet, and gasbag 4 is vest formula design, makes the main part distribution of respirator in the front of the chest, and the structure after folding is small and exquisite, and it is comfortable convenient to use to dress. The strip-shaped reflecting marks 41 are adhered to two sides of the upper surface of the air bag 4, and the SOS reflecting marks 42 are adhered to the middle positions of the two strip-shaped reflecting marks, so that users can be easily found in the environment with poor light, and the rescue is facilitated; install warning positioning unit 5 on gasbag 4, warning positioning unit 5 includes audible-visual annunciator module and location communication module, and the respirator of saving oneself launches the back, and audible-visual annunciator module sends the flash of light when alert sound, makes things convenient for the rescue personnel to discern, and personnel's position can be confirmed to the communication module of location simultaneously, launches positional information through communication modes such as microwaves, and the usable terminal that accords with communication protocol receives the positional information of the respirator of saving oneself, can conveniently rescue. It should be noted that the air bag 4 is connected with a waistband, so that the air bag 4 can be fixed in front of the chest of the human body.
The shell 6 is connected with the oxygen generating tank mounting seat 33 in a buckling mode, a clamping groove connected with the shell 6 is formed in the oxygen generating tank mounting seat 33, an easy-to-fold baffle 61 is arranged on one side face of the shell 6, the easy-to-fold baffle 61 is connected with the shell 6 in a virtual mode, and the connecting portion can be damaged through small external force. When the self-rescue respirator is not started, the shell 6 and the self-rescue respirator share the bottom plate (oxygen generating tank mounting seat), the oral-nasal mask 1, the breathing tube 2, the oxygen generating module 3, the uninflated air bag 4 and the alarm positioning unit 5 are covered, the packaging design that the self-rescue respirator and the shell 6 share the oxygen generating tank mounting seat is adopted, the whole volume of the self-rescue respirator in a packaging state is reduced, and the self-rescue respirator is convenient to store and carry.
Further, be provided with the neck area on the oxygen generating tank mount pad 33, the notch that sets up on neck area and the oxygen generating tank mount pad 33 is connected, and when casing 6 was connected with oxygen generating tank mount pad 33, the neck area was through the notch on the easy-to-break baffle 61 and is exposed casing 6 outward. The part of the neck strap located in the shell 6 is fixedly provided with the box breaking block, when the neck strap is pulled up, the box breaking block breaks the buckle and the easy-to-break baffle 61 of the shell 6, so that the shell 6 and the oxygen generating tank mounting seat 33 fall off, the self-rescue respirator can enter a working state, and the self-rescue respirator is simple in structure and easy to operate. The neck strap links to each other with the switch of warning positioning unit 5, the sealing plug in the oronasal mask 1 respectively, and when casing 6 and producing oxygen jar mount pad 33 drop, the switch was opened, and the sealing plug drops, and the respirator of saving oneself reaches user state, carries out acousto-optic warning automatically and sends positioning information, and the rescue personnel of being convenient for confirm the position of stranded person. The neck strap is printed with the use instruction of the self-rescue respirator, so that the use method of the self-rescue respirator is visually prompted to users, and the use is convenient and fast; the sealing plug is arranged in the oronasal mask, the oxygen production channel is sealed, and the phenomenon that air enters the oxygen production tank main body to react with the oxygen production agent when the self-rescue respirator is stored to cause the waste of the oxygen production agent is avoided.
According to the portable self-rescue respirator, the heat conducting plate made of the heat pipe is arranged in the oxygen generating tank main body, so that heat in the oxygen generating tank main body can be quickly conducted to the wall surface of the oxygen generating tank main body, and then the heat is dissipated by the heat dissipating holes arranged at the top and the side surface of the heat dissipating cover, so that the oxygen generating reaction temperature in the oxygen generating tank main body is reduced, the comfort level of the temperature during gas breathing is improved, and the problem of secondary damage caused by the fact that personnel inhale high-temperature gas is solved; through the pipeline that is provided with a plurality of netted pipe walls between intake pipe and outlet duct, the pipeline contacts with the inner wall of producing oxygen jar main part, because the pipeline is network structure, makes gaseous flow more even at the internal of jar, and gaseous can be along the way to producing oxygen agent diffusion all around, with the abundant contact reaction of producing oxygen agent around the pipeline, when producing oxygen efficiency and improving 5% ~ 10%, the radiating efficiency improves more than 10%.
The portable self-rescue respirator of the invention has the advantages that the one-way valve is arranged at the joint of the second channel, the third channel and the fourth channel, the first channel is connected with one end of the breathing tube, the second channel is connected with the first air outlet, the third channel is connected with the second air outlet, the fourth channel is connected with the air inlet pipe, the air outlet pipe is connected with the air inlet, the gas exhaled by the human body enters the air bag through the oxygen generating tank only by using one breathing tube, and then bypasses the oxygen generating tank from the air bag to directly enter the circulating oxygen generating structure of the respiratory system of the human body, the structure for realizing the circulating oxygen generating by the traditional two tubes or three tubes is simplified, the use process is more convenient, the action of personnel is less influenced, meanwhile, the gas temperature rise caused by the reciprocating airflow after passing through the oxygen generating tank twice in the breathing process is avoided, the oxygen generating temperature is reduced, and the air suction temperature of the respirator is lower than the existing relevant standard by more than 20 ℃, the breathing comfort is improved.
According to the portable self-rescue respirator, the inflatable air bag is set to be U-shaped, the oxygen generating tank is embedded in the U-shaped opening, and the vest-type breathing air bag design is adopted, so that the main body of the respirator is distributed in front of the chest, and the respirator is small in structure after being folded, and is more comfortable and convenient to wear and use; the mask is connected with the oxygen generating tank mounting seat through the shell, the mask, the breathing tube, the oxygen generating module, the uninflated air bag and the alarm positioning unit are covered, the self-rescue respirator and the shell share the bottom plate (the oxygen generating tank mounting seat), and the design that the self-rescue respirator and the shell share the oxygen generating tank mounting seat is adopted, so that the whole volume of the self-rescue respirator in a packaging state is reduced.
According to the portable self-rescue respirator, the neck strap is arranged on the oxygen generating tank mounting seat, when the shell is connected with the oxygen generating tank, the neck strap is exposed out of the shell, only one part of the neck strap is positioned outside the shell after the self-rescue respirator is packaged, and the neck strap is written with the use instruction guide, so that a user can see the use prompt before using the portable self-rescue respirator, and the use is convenient; the part of the neck strap in the shell is fixedly provided with the box breaking block, when the neck strap is pulled up, the box breaking block breaks the buckle and the easy-folding baffle of the shell, so that the shell and the oxygen generating tank mounting seat fall off, and the self-rescue respirator can enter a working state, is simple in structure and is easy to operate.
The portable self-rescue respirator is provided with the neck strap connected with the switch of the alarm positioning unit, when the shell and the oxygen generating tank mounting seat fall off, the switch is turned on to automatically perform sound-light alarm, rescue workers can conveniently determine the position of a trapped person, the alarm positioning unit comprises a sound-light alarm module and a positioning communication module, and when the people are trapped, the position information of the respirator can be received by using a terminal conforming to a communication protocol, so that the rescue is facilitated; the observation window is arranged at the top of the heat dissipation cover and arranged along the air flow direction, the scale marks are arranged on the edge of the observation window, and a user or an inspector can conveniently determine whether the oxygen generating agent fails or reaches the rated protection time through the observation window, so that a user can visually master the residual protection time of the respirator, and the use safety of the self-rescue respirator is ensured.
The portable self-rescue respirator is convenient to carry and use, comfortable in experience, and capable of visually determining whether an oxygen generating agent fails or not, and is provided with an alarm positioning function, so that rescue workers can conveniently determine the position of a trapped person, and the problems that the conventional respirator is large in size, complex to wear and use, high in breathing temperature, incapable of judging product effectiveness and difficult to position the trapped person are solved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (5)
1. A portable self-rescue respirator is characterized by comprising an oronasal mask (1), a breathing tube (2), an oxygen generation module (3), an air bag (4), an alarm positioning unit (5), a shell (6) and an oxygen generating agent; the mouth-nose mask (1), the breathing tube (2) and the oxygen generation module (3) are connected in sequence; the oxygen generating module (3) comprises an oxygen generating tank (31) and a four-way unit (32), the oxygen generating tank (31) is connected with the four-way unit (32), the air bag (4) is connected with the oxygen generating tank (31), and the oxygen generating agent is arranged in the oxygen generating tank (31); the alarm positioning unit (5) is arranged on the air bag (4), and the shell (6) is covered on the oxygen generation module (3);
the oxygen generating tank (31) comprises an air inlet pipe (311), an air outlet pipe (312) and an oxygen generating tank main body (313); a heat-conducting plate is arranged in the oxygen generating tank main body (313);
a plurality of pipelines (315) with net-shaped pipe walls are arranged between the air inlet pipe (311) and the air outlet pipe (312), and the pipelines (315) are in contact with the inner wall of the oxygen generating tank main body (313);
the oxygen generation module (3) further comprises an oxygen generation tank mounting seat (33) and a heat dissipation cover (34), wherein the heat dissipation cover (34) covers the oxygen generation tank (31) and the four-way unit (32);
the shell (6) is provided with an easy-to-break baffle (61), and the shell (6) is connected with an oxygen generating tank mounting seat (33);
a box breaking block is fixedly arranged on the part of the neck strap positioned in the shell (6); when the neck strap is pulled up, the box breaking block breaks the easy-to-break baffle (61) to enable the shell (6) and the oxygen generating tank mounting seat (33) to fall off.
2. The self-rescue respirator of claim 1, wherein the four-way unit (32) comprises a first channel (321), a second channel (322), a third channel (323), a fourth channel (324), the second channel (322), the third channel (323), and the fourth channel (324) each being provided with a one-way valve.
3. The self-rescue respirator according to claim 2, characterized in that the airbag (4) is U-shaped after being inflated, and the oxygen generating tank (31) is embedded in the U-shape; the air bag (4) comprises a first air outlet, a second air outlet and an air inlet.
4. The self-rescue respirator according to claim 3, characterized in that the first channel (321) is connected to one end of the breathing tube (2), the second channel (322) is connected to a first outlet port, the third channel (323) is connected to a second outlet port, the fourth channel (324) is connected to an inlet line (311), and the outlet line (312) is connected to an inlet port.
5. The self-rescue respirator according to claim 1, characterized in that the neck strap is connected with a switch of the alarm positioning unit (5) and a sealing plug in the oronasal mask (1), respectively; when the shell (6) and the oxygen generating tank mounting seat (33) fall off, the switch is opened, and the sealing plug falls off.
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| CN202010075086.XA CN111184954B (en) | 2020-01-22 | 2020-01-22 | Portable self-rescue respirator |
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| CN202010075086.XA CN111184954B (en) | 2020-01-22 | 2020-01-22 | Portable self-rescue respirator |
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| CN111184954B true CN111184954B (en) | 2021-08-24 |
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| CN114272525B (en) * | 2021-08-26 | 2022-12-20 | 张小雯 | Emergency oxygen supply device |
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