Oxygen self-rescuer

Abstract

The utility model relates to an oxygen self-rescuer. The oxygen self-rescuer comprises a breathing system and an absorption assembly. The breathing system comprises an inspiration pipe, an expiration pipe, a breathing air bag and an oxygen bottle, one end of the inspiration pipe is communicated with the face of the human body, and the other end of the inspiration pipe is communicated with the breathing air bag. The absorption assembly is used for absorbing carbon dioxide and communicates with the breathing airbag. Wherein the other end of the expiration pipe is contained in the absorption assembly, and a pressing air bag is further arranged on the breathing air bag and used for promoting air in the breathing air bag to be diffused into the absorption assembly. According to the technical scheme, gas exhaled by a human body can directly enter the absorption assembly, and the carbon dioxide absorption efficiency of the absorption assembly is higher. The breathing air bag further contains a part of carbon dioxide which is not absorbed by the absorption assembly, in order to increase the flow speed of air in the breathing air bag, a user can use the pressing air bag, and the air in the breathing air bag can be diffused into the absorption assembly more easily.

Description

Technical Field

[0001] The present disclosure relates to the field of self-rescuers, and in particular, to an oxygen self-rescuer. Background Art

[0002] The compressed oxygen self-rescuer is an emergency personal protective equipment, mainly used in underground workplaces such as mines when toxic and harmful gas leaks and hypoxia suffocation disasters occur. The compressed oxygen self-rescuer includes an air bag, an oxygen cylinder, and calcium hydroxide for absorbing carbon dioxide. In the related art, the user exhales into the air bag through the mouthpiece set on the air bag, and the exhaled gas will diffuse from the air bag into the calcium hydroxide, so that the calcium hydroxide absorbs the carbon dioxide in the gas. However, the gas flow rate is slow, and the efficiency of calcium hydroxide in absorbing carbon dioxide is low. The carbon dioxide content in the gas inhaled by the user will be too high, causing the user to have difficulty breathing. Utility Model Content

[0003] The purpose of the present invention is to provide an oxygen self-rescuer to solve the problem of breathing difficulties caused by low carbon dioxide absorption efficiency of compressed oxygen self-rescuers in the related art.

[0004] In order to achieve the above object, the present disclosure provides an oxygen self-rescuer, comprising:

[0005] A breathing system, comprising an inhalation tube, an exhalation tube, a breathing airbag and an oxygen cylinder, wherein one end of the inhalation tube is used to communicate with the human face, and the other end is connected to the breathing airbag, and one end of the exhalation tube is used to communicate with the human face;

[0006] An absorption component is used to absorb carbon dioxide, and the absorption component is connected to the breathing airbag; wherein,

[0007] The other end of the exhalation tube is accommodated in the absorption component, and a pressing airbag is also provided on the breathing airbag to promote the diffusion of gas in the breathing airbag into the absorption component.

[0008] Optionally, the absorption component includes an absorption tank and an absorption material for absorbing carbon dioxide, the absorption material is contained in the absorption tank, a connecting hole is opened on the absorption tank, the breathing airbag is connected to the connecting hole, the exhalation tube is contained in the breathing airbag, and the end of the exhalation tube passes through the connecting hole and is contained in the absorption material.

[0009] Optionally, a filter element is provided at one end of the exhalation tube accommodated in the absorbent to prevent the absorbent from entering the exhalation tube, and a filter mesh plate is provided in the communicating hole to prevent the absorbent from entering the breathing airbag.

[0010] Optionally, the oxygen self-rescuer comprises a breathing mask for covering the human face, and the breathing mask is provided with a first one-way breathing valve and a second one-way breathing valve, wherein:

[0011] One end of the inhalation pipe is in communication with the first one-way breathing valve, and the first one-way breathing valve is configured to open during inhalation and close during exhalation;

[0012] One end of the exhalation tube is communicated with the second one-way breathing valve, and the second one-way breathing valve is configured to open during exhalation and close during inhalation.

[0013] Optionally, the inhalation tube is a telescopic tube, and one end of the exhalation tube for communicating with the human face is accommodated in the inhalation tube.

[0014] Optionally, the breathing airbag is made of PU, TPEE or TPU.

[0015] Optionally, the oxygen self-rescuer further comprises a shell, the shell comprising a shell body and a shell cover, and the shell cover is arranged on the shell body.

[0016] Optionally, the oxygen self-rescuer further comprises a fixing belt for surrounding a human body, the oxygen self-rescuer is arranged on the human body through the fixing belt, and the shell body is provided with a plurality of belt holes for the fixing belt to pass through.

[0017] Optionally, a first connection structure is provided on the shell body, and a second connection structure that can be detachably connected to the first connection structure is provided on the shell cover.

[0018] Optionally, a lighting device is also provided on the housing.

[0019] Through the above technical solution, when using the oxygen self-rescuer, one end of the exhalation tube is placed in the absorption component, and the gas exhaled by the human body will directly enter the absorption component and enter the breathing mask after absorbing part of the carbon dioxide. Compared with the prior art in which the gas only enters the absorption component by diffusion, the absorption component is more efficient in absorbing carbon dioxide. At the same time, the absorption component cannot absorb all the carbon dioxide in the gas exhaled by the human body at one time. There is still some carbon dioxide in the breathing airbag that has not been absorbed by the absorption component. The gas in the breathing airbag will enter the absorption component again in a diffusion manner so that the absorption component can absorb carbon dioxide again. In order to increase the flow rate of the gas in the breathing airbag, the user can use a pressing airbag to make the gas in the breathing airbag more easily diffuse into the absorption component. With this design, the absorption component can absorb carbon dioxide more fully and quickly, ensuring the efficiency of the absorption component in absorbing carbon dioxide and avoiding breathing difficulties for people.

[0020] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0022] Figure 1 is a schematic diagram of the use of an oxygen self-rescuer provided by an exemplary embodiment of the present disclosure;

[0023] Figure 2 Schematic diagram of the structure of a housing provided in an exemplary embodiment of the present disclosure.

[0024] Description of Reference Numerals

[0025] 1-breathing system, 11-inhalation tube, 12-expiration tube, 13-breathing airbag, 14-oxygen cylinder, 15-pressing airbag, 16-filter element, 2-absorption component, 21-absorption tank, 22-absorbent, 23-first connecting hole, 24-filter mesh plate, 3-breathing mask, 31-first one-way breathing valve, 32-second one-way breathing valve, 4-shell, 41-shell body, 42-shell cover, 43-with hole, 44-first connecting structure, 45-second connecting structure, 46-lighting device. DETAILED DESCRIPTION

[0026] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0027] In the present disclosure, unless otherwise stated, directional words such as "upper" and "lower" generally refer to the orientation of the relevant components in actual use. "Inside" and "outside" refer to the inside and outside of the corresponding component outline. In addition, when the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The terms "first", "second", etc. used in the present disclosure are to distinguish one element from another element and do not have order or importance.

[0028] like Figure 1 and Figure 2As shown, the present disclosure provides an oxygen self-rescuer, including a breathing system 1 and an absorption component 2. The breathing system 1 includes an inhalation tube 11, an exhalation tube 12, a breathing airbag 13 and an oxygen cylinder 14. One end of the inhalation tube 11 is used to communicate with the human face, and the other end is connected to the breathing airbag 13. One end of the exhalation tube 12 is used to communicate with the human face. The absorption component 2 is connected to the breathing airbag 13 and is used to absorb carbon dioxide. Among them, the other end of the exhalation tube 12 is accommodated in the absorption component 2, and the breathing airbag 13 is also provided with a pressing airbag 15, which is used to promote the diffusion of gas in the breathing airbag 13 into the absorption component 2.

[0029] Through the above technical solution, when the oxygen self-rescuer is used, one end of the exhalation tube 12 is accommodated in the absorption component 2, and the gas exhaled by the human body will directly enter the absorption component 2 and enter the breathing mask 3 after absorbing part of the carbon dioxide. Compared with the prior art in which the gas only enters the absorption component 2 by diffusion, the absorption component 2 has a higher efficiency in absorbing carbon dioxide. At the same time, the absorption component 2 cannot absorb all the carbon dioxide in the gas exhaled by the human body at one time. The breathing airbag 13 still has some carbon dioxide that has not been absorbed by the absorption component 2. The gas in the breathing airbag 13 will enter the absorption component 2 again by diffusion, so that the absorption component 2 can absorb carbon dioxide again. In order to increase the flow rate of the gas in the breathing airbag 13, the user can use the pressing airbag 15 to make the gas in the breathing airbag 13 more easily diffuse into the absorption component 2. With such a design, the absorption component 2 can absorb carbon dioxide more fully and quickly, ensuring the efficiency of the absorption component 2 in absorbing carbon dioxide and avoiding breathing difficulties.

[0030] The main components of gases in the air are roughly as follows by volume: 1. Nitrogen: about 78%. 2. Oxygen: about 21%. 3. Carbon dioxide: about 0.04%. 4. Rare gases: including helium, neon, krypton, xenon, radon, etc., with a total of about 0.002% to 0.934%. 5. Water vapor: the content fluctuates with environmental conditions (such as temperature and humidity), usually between 0.02% and 4%. The main components of the gas exhaled by the human body are roughly as follows by volume: 1. Nitrogen: about 78%. The human body cannot use nitrogen. It remains basically unchanged during the breathing process and is re-exhaled. 2. Oxygen: about 16%, slightly lower than when inhaled. The human body inhales oxygen for the cellular respiration process to generate energy, and the oxygen content decreases when exhaled. 3. Carbon dioxide: about 4%, more than when inhaled. Carbon dioxide is a waste product of cellular respiration. It is exhaled out of the body after reaching the lungs with blood circulation. 4. Water vapor: usually expressed as less than 1%. 5. Rare gases: including helium, neon, argon, etc., accounting for about 0.94% in total. The proportion of these gases in the exhaled gas remains almost unchanged.

[0031] As mentioned above, among the gases in the air and the gases exhaled by the human body, except for the oxygen concentration and carbon dioxide, which will change greatly, the concentrations of other gases in the air and the gases exhaled by the human body remain basically unchanged. When using the oxygen self-rescuer, the gas exhaled by the human body passes through the exhalation tube 12 and the absorption component 2 in turn and enters the breathing airbag 13. At this time, the concentrations of nitrogen and rare gases in the breathing airbag 13 are basically consistent with the concentrations in the normal environment. The gas exhaled by the human body is mixed with the oxygen released into the breathing airbag 13 by the oxygen cylinder 14, and is used by the human body again through the inhalation tube 11. In the above process, after the gas exhaled by the human body passes through the absorption component 2, carbon dioxide will be partially absorbed, and the concentration of carbon dioxide will be reduced, so that the concentration of carbon dioxide in the gas in the breathing airbag 13 is close to the concentration of carbon dioxide in the gas in the air. Further, by supplementing oxygen into the breathing airbag 13 through the oxygen cylinder 14 at the same time, the oxygen concentration can be increased, so that the concentration of oxygen in the gas in the breathing airbag 13 is close to the concentration of oxygen in the gas in the air. In this way, the gas components in the breathing bag 13 will be very close to normal breathing under the action of the absorption of carbon dioxide by the absorption component 2 and the continuous oxygen supply of the oxygen cylinder 14, ensuring that people will not feel strange or uncomfortable when using it.

[0032] That is to say, after the gas exhaled by the human body absorbs part of the carbon dioxide by the absorption component 2, it mixes with the oxygen released by the oxygen cylinder 14 into the breathing airbag 13 to be used by the human body again. Since one end of the exhalation tube 12 is accommodated in the absorption component 2, the airflow speed in the absorption component 2 is significantly improved, and the gas exhaled by the human body can also fully contact the absorption component 2, so that the absorption component 2 can absorb carbon dioxide more fully and quickly. At the same time, the breathing airbag 13 can create a breathing environment and air components that the human body is accustomed to. Generally speaking, the oxygen concentration in the oxygen cylinder 14 will reach about 98%. If it is directly released into the breathing airbag 13 and inhaled by the human body, the human body will continue to be harmed by the high concentration of oxygen. After the gas exhaled by the human body is mixed with the oxygen released by the oxygen cylinder 14 into the breathing airbag 13, the oxygen concentration in the breathing airbag 13 can be reduced, making the oxygen concentration of the gas in the breathing airbag 13 more suitable for human inhalation. When the oxygen self-rescuer is used, after the human body inhales, the breathing mask 3 mentioned below is put on, and the exhaled gas is indirectly discharged into the breathing bag 13. The gas composition in the breathing bag 13 will be very similar to normal breathing under the continuous oxygen supply state of the oxygen cylinder 14. Preventing personnel from being exposed to a high-concentration oxygen environment for a long time and being harmed, by reducing the oxygen concentration in the breathing bag 13, the oxygen in the breathing bag 13 can also be prevented from being consumed quickly. The remaining oxygen in the gas exhaled by the human body can also be reused after entering the breathing bag 13, further avoiding the waste of oxygen.

[0033] The absorption component 2 may include an absorption tank 21 and an absorption material 22 for absorbing carbon dioxide. The absorption material 22 is contained in the absorption tank 21. A connecting hole is provided on the absorption tank 21. The breathing airbag 13 is connected to the connecting hole. The end of the exhalation tube 12 is penetrated by a connecting hole and contained in the absorption material 22. The absorption material 22 may be calcium hydroxide, which can react chemically with carbon dioxide in the exhaled gas of the human body, thereby removing carbon dioxide from the gas. In addition to calcium hydroxide, other alkaline or neutral oxides, hydroxides or carbonates that can react with carbon dioxide and form stable products can be used as the absorption material 22. The absorption material 22 may also be molecular sieve particles, which can selectively adsorb carbon dioxide to effectively remove carbon dioxide. When the gas exhaled by the human body passes through the calcium hydroxide particles or the molecular sieve particles, the calcium hydroxide particles or the molecular sieve particles can adsorb carbon dioxide to reduce the carbon dioxide concentration of the gas entering the breathing airbag 13. At the same time, the granular absorption material 22 also makes it easier to insert the exhalation tube 12. In some embodiments, the exhalation tube 12 can be contained in the breathing airbag 13. For details, please refer to Figure 1 This makes use of the space in the breathing bag 13 and reduces the volume of the breathing system 1. When one end of the exhalation tube 12 is placed in the absorbent 22, it is no longer necessary to increase the length to avoid the breathing bag 13, and the exhalation tube 12 can be directly placed in the breathing bag 13.

[0034] In addition to the absorbent material 22 for absorbing carbon dioxide, the absorbent component 2 may also be provided with a water-absorbing material for absorbing moisture to prevent the moisture content of the gas in the breathing bag 13 from being too high. If the moisture content of the gas in the breathing bag 13 is too high, it will affect the comfort of the person when breathing. The water-absorbing material here can be the molecular sieve particles mentioned above. The molecular sieve particles can be used as the absorbent material 22 for absorbing carbon dioxide, and can also be used as a water-absorbing material to absorb moisture and reduce the moisture content of the gas in the breathing bag 13. In addition to the molecular sieve particles, other substances that can absorb moisture and do not react with the absorbent material 22 can be used as water-absorbing materials.

[0035] As described above, the absorbent 22 may be calcium hydroxide particles or molecular sieve particles. In order to prevent the granular absorbent 22 from entering the expiratory tube 12 or the respiratory airbag 13, in some embodiments, a filter element 16 may be provided at one end of the expiratory tube 12 that is contained in the absorbent 22, and a filter screen 24 may be provided in the communicating hole. The filter element 16 is used to prevent the absorbent 22 from entering the respiratory airbag 13, and the filter screen 24 is used to prevent the absorbent 22 from entering the expiratory tube 12. At the same time, a plurality of air holes may be provided on the outer wall of the expiratory tube 12 that is contained in the absorbent 22, so that the gas exhaled by the human body can enter the absorption tank 21 more evenly through the air holes. The air holes may be provided on the outer wall of the expiratory tube 12 that is enclosed outside the filter element 16. Under the protection of the filter element 16, the air holes may be provided slightly larger. When the air holes are arranged on the outer wall of the exhalation tube 12 that is not enclosed outside the filter element 16 , the air holes can be arranged to be slightly smaller to prevent the absorbent 22 from entering the exhalation tube 12 through the air holes.

[0036] The oxygen self-rescuer may include a breathing mask 3 for covering the human face, and the breathing mask 3 is provided with a first one-way breathing valve 31 and a second one-way breathing valve 32, wherein one end of the inhalation pipe 11 is connected to the first one-way breathing valve 31, and the first one-way breathing valve 31 is configured to open when inhaling and close when exhaling. One end of the exhalation pipe 12 is connected to the second one-way breathing valve 32, and the second one-way breathing valve 32 is configured to open when exhaling and close when inhaling. The two one-way breathing valves ensure that the human body does not interfere with each other when inhaling and exhaling. At the same time, the two one-way breathing valves can automatically open and close when inhaling or exhaling, making the use of the oxygen self-rescuer more convenient. In the related art, the one-way breathing valve usually contains one or more films with a certain elasticity. When the gas flows, the pressure of the gas will overcome the elastic force of the film, causing the film to move or deform to one side, thereby opening the channel to allow the gas to flow. Taking inhalation as an example, the gas pressure in the inhalation pipe 11 will overcome the elastic force of the film in the first one-way breathing valve 31, so that the inhalation pipe 11 can be connected to the breathing mask 3, and the second one-way breathing valve 32 is in a closed state.

[0037] The breathing mask 3 can cover the mouth and nose, allowing the person to breathe through the mouth or nose, which is particularly beneficial for people who are accustomed to mouth breathing or need additional ventilation when running vigorously. In addition, the breathing mask 3 does not need to fit tightly to the mouth, and the person can still communicate with other people when using the oxygen self-rescuer.

[0038] One end of the exhalation tube 12 for communicating with the human face can be accommodated in the inhalation tube 11. In this way, the inhalation tube 11 is sleeved on the end of the exhalation tube 12 communicating with the human face, and when a person just opens the oxygen self-rescuer and unfolds the breathing airbag 13, the exhalation tube 12 and the inhalation tube 11, the inhalation tube 11 and the exhalation tube 12 will not be entangled together, so as to avoid the inhalation tube 11 and the exhalation tube 12 being tangled and causing the oxygen self-rescuer to be unusable. Since the exhalation tube 12 needs to be connected to the absorption component 2, the exhalation tube 12 is usually long. When a person wears an oxygen self-rescuer and runs, the long exhalation tube 12 is easy to shake, collide with and get entangled with other structures. When the end of the exhalation tube 12 connected to the human face is accommodated in the inhalation tube 11 and the exhalation tube 12 can be partially accommodated in the breathing airbag 13, the inhalation tube 11 and the breathing airbag 13 can limit the exhalation tube 12 at the same time to prevent the exhalation tube 12 from shaking, colliding with and getting entangled with other structures, and also make the arrangement between the inhalation tube 11 and the exhalation tube 12 more compact.

[0039] Generally speaking, an oxygen self-rescuer is usually mounted on the waist of the human body. When people of different heights use the oxygen self-rescuer, the distance between the waist and the face is also different. In order to make the oxygen self-rescuer adaptable to people of various heights, the intake pipe 11 can be a telescopic tube. By adjusting the length of the intake pipe 11, the breathing mask 3 can be just suitable for the distance between the human waist and the human face. At the same time, when one end of the exhalation pipe 12 connected to the human face is accommodated in the intake pipe 11 and the intake pipe 11 is a telescopic tube, the position of the exhalation pipe 12 with one end accommodated in the intake pipe 11 can be directly adjusted when the length of the intake pipe 11 is adjusted, and the intake pipe 11 and the exhalation pipe 12 no longer need to be configured as telescopic tubes at the same time.

[0040] The breathing airbag 13 can be made of PU, TPEE or TPU. It has good softness, elasticity, stability and formability. The good elasticity can fill the gaps between the joints, easily form a tight seal and prevent gas leakage. The good softness makes the breathing airbag 13 easy to fold and unfold, and can be reused many times. The good stability can withstand a variety of environmental conditions, and the breathing airbag 13 will not be damaged in a complex environment, further ensuring the service life of the breathing airbag 13. The good formability makes the breathing airbag 13 easy to process into a complex shape to meet the specific design requirements of the breathing airbag 13. Since the requirements for the pressing airbag 15 and the breathing airbag 13 when in use are basically the same, the pressing airbag 15 can also be made of the same material as the breathing airbag 13. In addition, the pressing airbag 15 needs to be pressed multiple times when in use to increase the flow rate of the gas in the breathing airbag 13. When the pressing airbag 15 has good softness, elasticity, stability and formability, it can also ensure that the pressing airbag 15 can be restored and not damaged after multiple pressings, further ensuring the service life of the pressing airbag 15.

[0041] The oxygen self-rescuer may further include a shell 4, wherein the breathing system 1 and the absorption component 2 are respectively accommodated in the shell 4, and the shell 4 includes a shell body 41 and a shell cover 42, wherein the shell cover 42 is disposed on the shell body 41. The shell 4 is disposed in a split manner, and when the oxygen self-rescuer is used, the shell cover 42 can be directly separated from the shell body 41 to open the oxygen self-rescuer, making the oxygen self-rescuer more convenient to use and minimizing the time for personnel to use the oxygen self-rescuer. Figure 1 , the absorption component 2 can be accommodated in the shell body 41, and the shell body 41 plays a protective role on the absorption component 2, while the breathing mask 3, the inhalation tube 11 and the exhalation tube 12 can be accommodated in the shell cover 42. When the shell cover 42 is opened, the personnel can directly unfold the breathing mask 3, the inhalation tube 11 and the exhalation tube 12, making the oxygen self-rescuer more convenient to use. In addition, the oxygen cylinder 14 is vertically arranged in the shell body 41, and the upper end of the oxygen cylinder 14 is accommodated in the shell cover 42. When the shell cover 42 is opened, the upper end of the oxygen cylinder 14 with the valve is directly exposed to the outside, and the personnel can directly control the valve of the oxygen cylinder 14 to quickly release the oxygen in the oxygen cylinder 14.

[0042] The oxygen self-rescuer can also include a fixing belt for surrounding the human body, and the oxygen self-rescuer is set on the human body through the fixing belt, and the shell body 41 is provided with a plurality of belt holes 43 for the fixing belt to pass through. In this way, when the oxygen self-rescuer is used, the belt is passed through the belt holes 43, and the oxygen self-rescuer can be quickly and reliably tied around the waist, which is convenient for wearing and position adjustment of the oxygen self-rescuer, and there will be no free swinging phenomenon during the running of the person, and the hands of the person are fully released. At the same time, only the belt holes 43 are provided on the shell body 41, and when the oxygen self-rescuer is used, the shell cover 42 can be directly opened and discarded to avoid the shell cover 42 interfering with the use of the oxygen self-rescuer by the person.

[0043] The shell body 41 may be provided with a first connection structure 44, and the shell cover 42 may be provided with a second connection structure 45 that can be detachably connected to the first connection structure 44. The first connection structure 44 here may be a snap ring, and the second connection structure 45 may be a slot, so that the shell body 41 and the shell cover 42 are snap-connected through the first connection structure 44 and the second connection structure 45. In the present application, the structures of the first connection structure 44 and the second connection structure 45 are not limited, as long as they can meet the requirements of detachable connection.

[0044] The housing 4 may also be provided with an illumination device 46. When visibility is not high, the oxygen self-rescuer can provide oxygen to ensure the survival of personnel, and can also improve the visibility of personnel through the illumination device 46, prevent personnel from getting lost or falling, and improve the survival probability of personnel. The illumination device 46 here can be an LED light source installed on the housing, and the LED light source has a small volume and low power consumption. When it is installed on the housing 4, the volume of the oxygen self-rescuer will not be increased too much. At the same time, the brightness is high, so that the oxygen self-rescuer can be applied to a variety of situations. For example, when the oxygen self-rescuer is used in some ground places and the personnel do not wear other lighting equipment, the visibility of the personnel can be improved by the illumination device 46 at this time. For another example, when the oxygen self-rescuer is used in underground working places such as mines, the personnel usually wear lighting equipment such as mining lamps, and the lighting equipment brought by the personnel can be used simultaneously with the illumination device 46 to improve the visibility of the personnel as much as possible.

[0045] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0046] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0047] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An oxygen self-rescuer, characterized in that: include: A breathing system, comprising an inhalation tube, an exhalation tube, a breathing airbag and an oxygen cylinder, wherein one end of the inhalation tube is used to communicate with the human face, and the other end is connected to the breathing airbag, and one end of the exhalation tube is used to communicate with the human face; An absorption component is used to absorb carbon dioxide, and the absorption component is connected to the breathing airbag; wherein, The other end of the exhalation tube is accommodated in the absorption component, and a pressing airbag is also provided on the breathing airbag to promote the diffusion of gas in the breathing airbag into the absorption component.

2. The oxygen self-rescuer according to claim 1, characterized in that: The absorption component includes an absorption tank and an absorption material for absorbing carbon dioxide. The absorption material is contained in the absorption tank. A connecting hole is provided on the absorption tank. The breathing airbag is connected to the connecting hole. The end of the exhalation tube passes through the connecting hole and is contained in the absorption material.

3. The oxygen self-rescuer according to claim 2, characterized in that: A filter element is provided at one end of the exhalation tube that is accommodated in the absorbent material, which is used to prevent the absorbent material from entering the exhalation tube. A filter screen is provided in the communicating hole, which is used to prevent the absorbent material from entering the breathing airbag.

4. The oxygen self-rescuer according to claim 1, characterized in that: The oxygen self-rescuer comprises a breathing mask for covering the human face, and the breathing mask is provided with a first one-way breathing valve and a second one-way breathing valve, wherein: One end of the inhalation pipe is in communication with the first one-way breathing valve, and the first one-way breathing valve is configured to open during inhalation and close during exhalation; One end of the exhalation tube is communicated with the second one-way breathing valve, and the second one-way breathing valve is configured to open during exhalation and close during inhalation.

5. The oxygen self-rescuer according to claim 1, characterized in that: The inhalation tube is a telescopic tube, and one end of the exhalation tube for communicating with the human face is accommodated in the inhalation tube.

6. The oxygen self-rescuer according to claim 1, characterized in that: The breathing airbag is made of PU, TPEE or TPU.

7. The oxygen self-rescuer according to claim 1, characterized in that: The oxygen self-rescuer also includes a shell, the breathing system and the absorption component are respectively accommodated in the shell, the shell includes a shell body and a shell cover, and the shell cover is arranged on the shell body.

8. The oxygen self-rescuer according to claim 7, characterized in that: The oxygen self-rescuer also includes a fixing belt for surrounding a human body. The oxygen self-rescuer is arranged on the human body through the fixing belt. The shell body is provided with a plurality of belt holes for the fixing belt to pass through.

9. The oxygen self-rescuer according to claim 7, characterized in that: The shell body is provided with a first connection structure, and the shell cover is provided with a second connection structure that can be detachably connected to the first connection structure.

10. The oxygen self-rescuer according to claim 7, characterized in that: The housing is also provided with a lighting device.

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