CN211705653U - Chemical oxygen breathing device of saving oneself - Google Patents

Abstract

The utility model relates to a chemistry oxygen breathing device of saving oneself belongs to conflagration emergency device technical field, has solved current breathing device of saving oneself and has worn and use complicated, breathe the problem that the temperature is high, product validity can't be judged, stranded personnel location is difficult. The utility model comprises an oronasal mask, a breathing tube, an oxygen generating 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, a four-way unit, an oxygen generating tank mounting seat and a heat dissipation cover, wherein an observation window is arranged at the top of the heat dissipation cover, the observation window is arranged along the airflow direction, and scale marks are arranged on the edge of the observation window; 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 utility model discloses simple structure, easily operation, it is low to produce the oxygen temperature, and the security is high.

Description

Chemical oxygen breathing device of saving oneself

Technical Field

The utility model relates to a conflagration device technical field of saving oneself especially relates to a chemical oxygen respiratory device that saves oneself.

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 type breathing mask or a compressed gas cylinder breathing device and the like, and can also adopt means such as wearing a chemical oxygen breathing device to carry out scene evacuation and escape 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 compressed air bottle type breathing device 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 generate because the compressed air bottle type breathing device belongs to a high-pressure container. Therefore, the chemical oxygen breathing device is ideal breathing protection rescue equipment in the operation scenes of fire fighting, chemical engineering, coal mines, closed spaces and the like 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 in the using process and prevent the damage of local high temperature to human body becomes the common application of the chemical oxygen rescue breathing deviceAnd one of the key technologies.

Meanwhile, the existing chemical oxygen breathing device 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.

SUMMERY OF THE UTILITY MODEL

In view of the aforesaid analysis, the utility model aims at providing a portable breathing device of saving oneself for solve present breathing device of saving oneself and wear to use complicated, breathing temperature height, the unable problem of judging of product validity, stranded personnel location difficulty.

The purpose of the utility model is mainly realized through the following technical scheme:

a chemical oxygen self-rescue breathing device 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, a four-way unit, an oxygen generating tank mounting seat and a heat dissipation cover, wherein an observation window is arranged at the top of the heat dissipation cover, the observation window is arranged along the airflow direction, and scale marks are arranged on the edge of the observation window; 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; a heat conducting plate is arranged in the oxygen generating tank main body;

and 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 heat dissipation cover covers the oxygen generating tank and the four-way unit;

the top and the side of the heat dissipation cover are provided with heat dissipation holes, and the positions of the heat dissipation holes correspond to the position of the oxygen generating tank main body.

Further, the position of the observation window corresponds to the position of the oxygen generating tank main body, and the length of the observation window is equal to that 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 shell is provided with an easy-to-break baffle and is connected with the oxygen generating tank mounting seat;

be provided with the neck area on the oxygen generating tank mount pad, when the casing is connected with the oxygen generating tank mount pad, the neck area exposes the casing through the notch on the easy baffle of rolling over.

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 utility model discloses can realize one of following beneficial effect at least:

(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 prevented from rising when the gas passes through the oxygen generating tank twice in the breathing process caused by reciprocating airflow, the temperature of oxygen generation is reduced, the inspiration temperature of the breathing device is lower than that of the existing relevant standard by more than 20 ℃, and the breathing comfort level is improved;

(4) the inflatable air bag is set to be U-shaped, the oxygen generating tank is embedded in the U-shaped, and the vest-type breathing air bag design is adopted, so that the main body of the breathing device is distributed in front of the chest, and the folded breathing device is small in structure and more comfortable and convenient to wear and use;

(5) 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 breathing device and the shell share a bottom plate (oxygen generating tank mounting seat), and the design that the self-rescue breathing device and the shell share the oxygen generating tank mounting seat is adopted, so that the overall volume of the self-rescue breathing device 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 breathing device 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 self-rescue breathing device, and the use is convenient;

(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 breathing device 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 terminal conforming to a communication protocol can be used for receiving position information of the breathing device, 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 at 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 breathing device, and the use safety of the self-rescue breathing device 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.

The utility model discloses in, can also make up each other between the above-mentioned each technical scheme to realize more preferred combination scheme. 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 the drawings.

FIG. 1 is a schematic view of the overall structure of a breathing apparatus;

FIG. 2 is a top view of the respiratory device 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 breathing apparatus;

FIG. 5 is a schematic view of the respiratory device with the heat sink removed;

FIG. 6 is a schematic cross-sectional view of an oxygen generating canister of the breathing apparatus;

FIG. 7 is a front view of the housing structure of the breathing apparatus;

FIG. 8 is a perspective view of the housing structure of the breathing apparatus;

FIG. 9 is a perspective view of the oronasal mask structure of the respiratory device.

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 following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of the invention, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit the scope of the invention.

The utility model discloses a specific embodiment, as shown in figures 1-9, discloses a chemical oxygen self-rescue breathing device, which comprises an oronasal mask 1, a breathing tube 2, an oxygen production module 3, an air bag 4, an alarm positioning unit 5, a shell 6 and an oxygen production 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 inspiration temperature of the breathing device 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 as to be bent and twisted when the self-rescue breathing device is 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; 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 breathing device 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 grasp the remaining protection time of the breathing apparatus, 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 chemical oxygen mode generates oxygen, so that the oxygen generating tank 31 of the self-rescue breathing device generates local high temperature and is easy to cause secondary damage to users, in order to improve the safety of the self-rescue breathing device 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 transfer 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 out 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. Through set up by the heat pipe at the inside heat-conducting plate that makes 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 respiratory device when using of saving oneself.

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; the fourth quick connector 327 is internally provided with a one-way valve 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 breathing device 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 valve is disposed at the connection position of 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 this embodiment, only utilize a respiratory tube 2 to realize that the gas of human exhalation gets into gasbag 4 through oxygen generating tank 31 promptly, bypass oxygen generating tank 31 from gasbag 4 and directly get into the circulating oxygen generation of human respiratory system, the structure of traditional two pipe or three tubular realization circulating oxygen generation has been simplified, the use is more convenient, it is less to personnel's action influence, the respiratory process gas that has avoided reciprocating type air current to lead to makes gaseous temperature rising through oxygen generating tank 31 twice, the temperature of oxygen generation has been reduced, make respiratory device's the temperature of breathing in than the present relevant standard more than 20 ℃, respiratory comfort level has been 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 breathing device is ensured to be used. The edge of the observation window 343 is provided with scale marks, through the scale at the edge of the observation window 343, can estimate the remaining protection time in the use, let the user grasp respiratory device's remaining protection time directly perceivedly, ensure the safety in utilization of respiratory device of saving oneself.

In this embodiment, be the U type after gasbag 4 aerifys, produce oxygen jar 31 and inlay and establish in U type mouth, gasbag 4 includes first gas outlet, second gas outlet and air inlet, and gasbag 4 is vest formula design, makes respiratory device's main part distribute in the front of the chest, and the structure after folding is small and exquisite, and it is comfortable convenient to dress and use. 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 breathing device 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, goes out position information transmission through communication modes such as microwave, and usable terminal that accords with communication protocol receives the position information of breathing device 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 breathing device is not started, the shell 6 and the self-rescue breathing device share the bottom plate (oxygen production tank mounting seat), the oral-nasal mask 1, the breathing tube 2, the oxygen production module 3, the uninflated air bag 4 and the alarm positioning unit 5 are covered, the packaging design that the self-rescue breathing device and the shell 6 share the oxygen production tank mounting seat is adopted, the whole volume of the self-rescue breathing device in a packaging state is reduced, and the self-rescue breathing device 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 a box breaking block, when the neck strap is pulled up, the box breaking block breaks the buckle and the easy-to-fold baffle 61 of the shell 6, so that the shell 6 and the oxygen generating tank mounting seat 33 fall off, the self-rescue breathing device can enter a working state, and the self-rescue breathing device 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 respiratory device reaches user state of saving oneself, carries out acousto-optic warning automatically and sends locating information, the rescue personnel of being convenient for confirm the position of being stranded person. The neck strap is printed with an instruction of the self-rescue breathing device, so that the use method of the self-rescue breathing device is intuitively prompted to a user, 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 breathing device is stored, so that the waste of the oxygen production agent is caused is avoided.

The chemical oxygen self-rescue breathing device of the utility model can rapidly conduct the heat inside the oxygen generating tank main body to the wall surface of the oxygen generating tank main body by arranging the heat conducting plate made of the heat pipe inside the oxygen generating tank main body, and then the heat is dissipated by arranging the heat dissipating holes at the top and the side surface of the heat dissipating cover, thereby reducing the oxygen generating reaction temperature in the oxygen generating tank main body, improving the comfort level of the temperature during gas breathing and avoiding the problem of secondary damage of personnel caused by high-temperature gas suction; 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 chemical oxygen self-rescue breathing device of the utility model is provided with the check valve 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 gas outlet, the third channel is connected with the second gas outlet, the fourth channel is connected with the gas inlet pipe, the gas outlet pipe is connected with the gas inlet, the gas exhaled by the human body can enter the gasbag through the oxygen generating tank only by using one breathing tube, and then the gas bypasses the oxygen generating tank from the gasbag and directly enters 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, the action influence on personnel is less, simultaneously, the gas temperature rise caused by the oxygen generating tank twice in the breathing process caused by reciprocating airflow is avoided, the temperature of the oxygen generation is reduced, the air suction temperature of the breathing device is lower than the prior related standard by more than, the breathing comfort is improved.

The utility model discloses a chemical oxygen breathing device of saving oneself sets up the gasbag into the U type after will aerifing, inlays the oxygen generating tank and establishes in U type mouth, adopts vest formula breathing gasbag design, makes the main part of breathing device distribute in the front, and the structure after folding is small and exquisite, and it is more comfortable convenient to dress and use; be connected through casing and oxygen production jar mount pad, cover oronasal mask, respiratory tube, oxygen production module, uninflated gasbag, alarm positioning unit, the respiratory device of saving oneself and casing sharing bottom plate (oxygen production jar mount pad), adopt the respiratory device of saving oneself and the design of casing sharing oxygen production jar mount pad, reduced the whole volume of respiratory device of saving oneself under the packing status.

The utility model discloses a chemical oxygen breathing device that saves oneself, the oxygen generating tank mount pad is provided with the neck area, when the shell is connected with the oxygen generating tank, the neck area exposes the casing outward, only a part of neck area lies outside the casing after the breathing device that saves oneself is packed, write the instruction guide on the neck area, ensure that personnel see the suggestion of using before using first, it is convenient to use; 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, the self-rescue breathing device can enter a working state, and the self-rescue breathing device is simple in structure and easy to operate.

The utility model discloses a chemical oxygen breathing device that saves oneself sets up the neck area and links to each other with the switch of warning positioning unit, when casing and oxygen generating tank mount pad drop, the switch is opened, carries out acousto-optic warning automatically, is convenient for rescue workers to confirm the position of stranded person, and warning positioning unit includes acousto-optic warning module and location communication module, when personnel are stranded, can utilize the terminal that accords with communication protocol to receive the positional information of breathing device, conveniently rescues; the observation window is arranged at the top of the heat dissipation cover and arranged along the airflow 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 breathing device, and the use safety of the self-rescue breathing device is ensured.

The utility model discloses a chemistry oxygen breathing device of saving oneself conveniently carries the use, experiences comfortablely, and whether can the visual determination produce the oxygen agent inefficacy simultaneously, from taking the position that the warning locate function made things convenient for rescue workers to confirm the stranded person, solved current breathing device bulky, wear to use complicacy, breathing temperature height, product validity can't judge, stranded personnel's difficult problem of location.

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 should be covered by the present invention.

Claims (10)

1. A chemical oxygen self-rescue breathing device 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 generation module (3) comprises an oxygen generation tank (31), a four-way unit (32), an oxygen generation tank mounting seat (33) and a heat dissipation cover (34), wherein an observation window (341) is arranged at the top of the heat dissipation cover (34), the observation window (341) is arranged along the airflow direction, and scale marks are arranged on the edge of the observation window (341); 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).

2. The self-rescue breathing apparatus according to claim 1, wherein the oxygen generating tank (31) comprises an inlet duct (311), an outlet duct (312) and an oxygen generating tank 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).

3. The self-rescue breathing apparatus according to claim 2, wherein the heat-dissipating shroud (34) is housed over the oxygen-generating tank (31) and the four-way unit (32);

the top and the side of the heat dissipation cover (34) are provided with heat dissipation holes, and the positions of the heat dissipation holes correspond to the position of the oxygen generating tank body (313).

4. The self-rescue breathing apparatus according to claim 3, wherein the position of the observation window (341) corresponds to the position of the oxygen generating tank body (313), the length of the observation window (341) being equal to the length of the oxygen generating tank body (313).

5. The self-rescue breathing apparatus according to claim 4, wherein the four-way unit (32) comprises a first passage (321), a second passage (322), a third passage (323), a fourth passage (324), the second passage (322), the third passage (323) and the fourth passage (324) each being provided with a one-way valve.

6. The self-rescue breathing device according to claim 5, wherein the air bag (4) is U-shaped after being inflated, and the oxygen generating tank (31) is embedded in the U-shaped; the air bag (4) comprises a first air outlet, a second air outlet and an air inlet.

7. The self-rescue breathing apparatus according to claim 6, wherein the first passage (321) is connected to one end of the breathing tube (2), the second passage (322) is connected to a first outlet, the third passage (323) is connected to a second outlet, the fourth passage (324) is connected to an inlet tube (311), and the outlet tube (312) is connected to an inlet.

8. The self-rescue breathing apparatus according to claim 1, wherein the housing (6) is provided with a frangible barrier (61), the housing (6) being connected with an oxygen generating tank mount (33);

be provided with the neck area on oxygen generating tank mount pad (33), when casing (6) and oxygen generating tank mount pad (33) are connected, the notch on the neck area through easy-to-break baffle (61) exposes casing (6) outward.

9. The self-rescue breathing device according to claim 8, wherein a box breaking block is fixedly arranged on the part of the neck strap located 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.

10. The self-rescue breathing device according to claim 8 or 9, wherein the neck strap is connected to 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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