Portable oxygen production breathing device based on membrane separation technology

Abstract

The utility model belongs to the technical field of oxygen generation and supply, and discloses a portable oxygen generation breathing device based on a membrane separation technology. The oxygen supply device is connected with a breathing mask through an air delivery pipe and comprises a shell, a power device is installed in the shell, the power device is coaxially connected with an oxygen generation device, the oxygen generation device comprises an air cylinder, the bottom of the air cylinder is connected with an air storage tank through an air outlet end, and an oxygen enrichment separation membrane is installed in the air outlet end. A first valve type one-way valve is mounted at a port of the air outlet end and is positioned at the bottom of the oxygen-enriched separation membrane; according to the oxygen-rich oxygen generator, oxygen-rich gas can be efficiently separated, the oxygen generation efficiency is improved, the purity of oxygen is ensured, and rich oxygen is ensured to be provided, so that the adaptation and activity capability of an organism in a low-pressure and low-oxygen environment in an oxygen-lean region is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of oxygen production and supply technology, specifically to a portable oxygen-generating breathing device based on membrane separation technology. Background Technology

[0002] In low-pressure, low-oxygen environments, such as high-altitude areas and underground mining areas, people's environmental adaptability decreases significantly. For groups rapidly reaching altitudes above 3500 meters, their maximum activity level drops to half that of those at sea level, and the incidence of acute mountain sickness can reach over 90%. Therefore, hypoxia severely impacts human activities such as tourism and work, and even the combat effectiveness of military personnel.

[0003] However, existing oxygen production technologies mainly focus on molecular sieve oxygen production technology. But the oxygen production capacity of molecular sieve oxygen production technology is limited by the adsorption capacity of molecular sieves. When molecular sieves adsorb too much nitrogen, their adsorption capacity will decrease, thus affecting the oxygen production speed and purity. While adsorbing nitrogen, molecular sieves also adsorb other impurities, thus affecting the purity of the final oxygen. Especially when there are many impurities and organic pollutants in the air, the sieve pores of molecular sieves are easily blocked, resulting in a decrease in the purity of the produced oxygen. This limits the application of this technology in large-scale oxygen production scenarios. Utility Model Content

[0004] The purpose of this invention is to provide a portable oxygen-generating breathing device based on membrane separation technology to overcome the problems existing in the prior art. This invention can efficiently separate oxygen-rich gas and collect it into a gas storage tank through a push rod, piston, cylinder, oxygen-enriched separation membrane installed inside the outlet end, a first valve-type one-way valve installed at the outlet end port, and a second valve-type one-way valve installed at the inlet end port, thereby improving oxygen production efficiency and ensuring oxygen purity, guaranteeing the provision of oxygen enrichment (around 30%). The oxygen enrichment is then supplied to the breathing mask through a gas delivery tube to achieve oxygen supply, which can enhance the body's adaptability and activity ability in low-pressure and low-oxygen environments in oxygen-scarce areas. Secondly, the device can improve its endurance through the setting of a charging port and power supply. In addition, the device is detachable and easy to carry, and quick to install and disassemble, improving the portability of the equipment.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This utility model provides a portable oxygen-generating breathing device based on membrane separation technology, including an oxygen supply device, which is connected to a breathing mask via an air supply pipe.

[0007] The oxygen supply device includes an outer shell, a power unit is installed inside the outer shell, an oxygen generator is coaxially connected to the power unit, a gas storage tank is installed at the bottom of the oxygen generator, and the gas storage tank is connected to a breathing mask through a gas delivery pipe.

[0008] The oxygen generating device includes a cylinder, inside which a piston is installed. The piston is connected to a push rod, and the push rod, piston, and cylinder are coaxially connected to a power device. The bottom of the cylinder is connected to an air storage tank through an outlet end. An oxygen-enriched separation membrane is installed inside the outlet end, and a first valve-type one-way valve is installed at the port of the outlet end, located at the bottom of the oxygen-enriched separation membrane. The top of the cylinder is connected to the outside through an inlet end, and a second valve-type one-way valve is installed at the port of the inlet end.

[0009] Furthermore, the power unit is externally fitted with an insulation panel;

[0010] Furthermore, the power unit includes a reciprocating motor, a power source is installed at the bottom of the reciprocating motor, the reciprocating motor is coaxially connected to the push rod, piston and cylinder, the reciprocating motor is used to drive the push rod, the push rod drives the piston to achieve reciprocating motion in the cylinder;

[0011] Furthermore, the power supply has a charging port that penetrates the outer shell and the insulation partition.

[0012] Furthermore, the oxygen generating device is equipped with a gas storage tank via a partition;

[0013] Furthermore, one end of the gas supply pipe is detachably connected to the gas storage tank, and the other end is connected to the breathing mask via a pin. A ring is installed at the end of the pin for pulling out the pin. Silicone rubber rings are also installed at the connection points between the gas supply pipe and the gas storage tank and the breathing mask to prevent oxygen leakage.

[0014] Furthermore, a pressure regulating valve is installed on the end of the gas pipeline near the gas storage tank;

[0015] Furthermore, the breathing mask includes a mask body, with fixing parts installed at both ends of the rear part of the mask body, an air inlet installed at one end of the side part of the mask body, a third valve-type one-way valve installed at the end of the air inlet, the air inlet being connected to an air storage tank through an air supply pipe, and an air outlet installed at the other end, with a fourth valve-type one-way valve installed at the end of the air outlet.

[0016] Furthermore, a first baffle is installed inside the mask body, and a second baffle is fixed to the first baffle via a spindle located to the left of the center line of the mask body; when the air pressure is constant, the first baffle is located at the air inlet to prevent oxygen from entering the interior of the mask body, and the second baffle is located at the air outlet to prevent gas from being discharged through the air outlet; when the air pressure is not constant, the spindle is used to drive the first and second baffles to rotate.

[0017] Furthermore, one end of the fixing part is equipped with the mask body, and the other end is equipped with a wearing strap for fixing the breathing mask to the head.

[0018] The above technical solution has the following advantages or beneficial effects:

[0019] This invention provides a portable oxygen-generating breathing device based on membrane separation technology. By using cylinder-type pressurization, it overcomes the limitations of pump-type pressurization in low-pressure environments with scarce oxygen, which cannot fully meet the pressure differential requirements of membrane separation technology. The integrated shell of the oxygen supply device improves structural strength. Through the use of an oxygen-enriched separation membrane, a first-valve one-way valve, and a second-valve one-way valve, it can efficiently separate oxygen-rich gas and collect it in a storage tank, improving oxygen production efficiency and ensuring oxygen purity, guaranteeing the supply of oxygen-enriched gas (around 30%). By employing valve-type one-way valves, mimicking the working principle of the heart's blood supply, it simplifies the structure and improves the reliability of the device by ensuring unidirectional gas flow.

[0020] Furthermore, in low-pressure, low-oxygen environments in oxygen-scarce regions, the heat generated by the oxygen supply device can be used to keep the power supply warm, thereby improving discharge efficiency.

[0021] Furthermore, by including a charging port, the device's battery life can be improved, ensuring its effective operation.

[0022] Furthermore, by installing a ring at the end of the pin for quick removal, it facilitates rapid disassembly in case of device failure, preventing obstruction of breathing. The silicone rubber ring, a highly elastic and aging-resistant sealing material, fits tightly at the joints and pin connections, effectively preventing oxygen leakage during transmission. This is especially important for individuals relying on breathing devices for respiratory support in low-pressure, low-oxygen environments in oxygen-scarce areas. The detachable connection allows for easy disassembly and assembly of components, optimizing overall size and weight for easy carrying. Whether for hikers, mountaineers, or emergency rescue personnel, the device can be easily placed in a backpack or carrying case, ready to cope with hypoxic environments, greatly enhancing the overall portability of the device.

[0023] Furthermore, by equipping the inlet and outlet with a third-valve one-way valve and a fourth-valve one-way valve respectively, unidirectional gas flow is ensured, preventing ineffective gas circulation within the mask during breathing, thus improving oxygen utilization and breathing efficiency. Especially in hypoxic environments, it can quickly respond to pressure changes and provide users with a stable airflow. Through the configuration of the spindle, first baffle, and second baffle, the torque generated by pressure changes during inhalation and exhalation allows for flexible control of the opening and closing of the inlet and outlet, ensuring smoothness and efficiency of the breathing process, reducing breathing resistance, and improving user comfort.

[0024] Furthermore, by installing a strap to secure the breathing mask to the head, comfort can be improved while ensuring airtightness. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the oxygen supply device structure of a portable oxygen-generating breathing device based on membrane separation technology according to this utility model;

[0026] Figure 2 This is a partial schematic diagram of the power supply of a portable oxygen-generating breathing device based on membrane separation technology according to this utility model;

[0027] Figure 3 This is a connection diagram of a portable oxygen-generating breathing device based on membrane separation technology according to this utility model;

[0028] Figure 4 This is a partial structural diagram of the connection between the air delivery tube and the breathing mask of a portable oxygen-generating breathing device based on membrane separation technology according to the present invention.

[0029] Figure 5 This is a schematic diagram of the breathing mask structure of a portable oxygen-generating breathing device based on membrane separation technology according to this utility model;

[0030] In the diagram, 1-outer shell; 11-power supply; 111-charging port; 12-reciprocating motor; 13-push rod; 14-piston; 15-cylinder; 151-air outlet; 152-air inlet; 16-first valve; 17-oxygen-enriched separation membrane; 18-air tank; 19-second valve; 2-air supply pipe; 21-pressure regulating valve; 22-silicone ring; 23-pin; 24-ring; 3-mask body; 31-air inlet; 32-air outlet; 33-first baffle; 34-spindle; 35-second baffle; 36-wearing strap; 37-fixing part; 38-third valve; 39-fourth valve. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to specific embodiments. The description is for explanation and not limitation of the present invention.

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] Example:

[0035] join Figure 1 , Figure 2 and Figure 3 This utility model provides a portable oxygen-generating breathing device based on membrane separation technology, including an oxygen supply device, an air delivery pipe 2, a pressure regulating valve 21, and a breathing mask; the oxygen supply device includes a shell 1, a power unit, an oxygen generating device, and an air storage tank 18; the power unit includes a power supply 11 and a reciprocating motor 12; the oxygen generating device includes a push rod 13, a piston 14, a cylinder 15, an air outlet 151, a first valve-type one-way valve 16, an oxygen-enriching separation membrane 17, an air inlet 152, a second valve-type one-way valve 19, a heat-insulating partition 4, and a partition 5; the breathing mask includes a mask body 3, a fixing part 37, an air inlet 31, a third valve-type one-way valve 38, an air outlet 32, a fourth valve-type one-way valve 39, a first baffle 33, a spindle 34, a second baffle 35, and a wearing strap 36;

[0036] The oxygen supply device is connected to a breathing mask via an air supply pipe 2. A reciprocating motor 12 is installed inside the outer casing 1 of the oxygen supply device. The reciprocating motor 12 is coaxially connected to the oxygen generator. A gas storage tank 18 is installed at the bottom of the oxygen generator via a partition 5. The gas storage tank 18 is connected to the breathing mask via the air supply pipe 2. A power supply 11 is installed at the bottom of the reciprocating motor 12. An insulation partition 4 is installed outside the reciprocating motor 12 and the power supply 11. In low-pressure, low-oxygen environments in oxygen-scarce areas, the heat generated by the oxygen supply device is used to insulate the power supply, improving discharge efficiency. There is no heat insulation partition between the outer shell 1 and the insulation partition 4. The power supply 11 has a charging port 111, which passes through the outer shell 1 and the insulation partition 4. By setting the charging port 111, the endurance of the device can be improved, ensuring the effective operation of the device. The oxygen generating device includes a cylinder 15, and a piston 14 is installed inside the cylinder 15. The piston 14 is connected to a push rod 13. The push rod 13, piston 14 and cylinder 15 are coaxially connected to a reciprocating motor 12. The reciprocating motor 12 drives the push rod 13, and the push rod 13 drives the piston 14 to reciprocate within the cylinder 15. The bottom of cylinder 15 is connected to the gas storage tank 18 via the outlet 151. An oxygen-enriched separation membrane 17 is installed inside the outlet 151, and a first valve-type one-way valve 16 is installed at the port of the outlet 151, located at the bottom of the oxygen-enriched separation membrane 17. The top of cylinder 15 is connected to the outside via the inlet 152, penetrating the outer shell 1. A second valve-type one-way valve 19 is installed at the port of the inlet 152. This cylinder-type pressurization overcomes the limitation of pump-type pressurization in low-pressure environments with scarce oxygen, which prevents complete membrane separation technology. The technique requires a pressure differential, which is a disadvantage. The oxygen supply device improves structural strength through an integrated shell. Using an oxygen-enriched separation membrane 17, a first valve-type one-way valve 16, and a second valve-type one-way valve 19, it efficiently separates oxygen-rich gas and collects it in the gas storage tank 18, improving oxygen production efficiency and ensuring oxygen purity, guaranteeing the supply of oxygen-enriched gas (around 30%). By employing valve-type one-way valves, mimicking the working principle of the heart's blood supply, the structure is simplified based on unidirectional gas flow, improving the reliability of the equipment.

[0037] Preferred, see Figure 4One end of the gas supply pipe 2 is threadedly connected to the gas storage tank 18. A silicone rubber ring 22 is installed at the connection between the gas supply pipe 2 and the gas storage tank 18 for sealing. The other end is pinned to the air inlet 31 of the breathing mask by a pin 23. A ring 24 is installed at the end of the pin 23 for quick removal, facilitating rapid disassembly in case of device failure and preventing obstruction of breathing. A silicone rubber ring 22 is also installed at the connection between the gas supply pipe 2 and the breathing mask. As a highly elastic and aging-resistant sealing material, the silicone rubber ring 22 can fit tightly to the connection and pin joint, effectively preventing oxygen from entering. Leakage during transmission is particularly important for individuals who rely on breathing devices for respiratory support in low-pressure, low-oxygen environments in areas with scarce oxygen. The detachable connection allows for easy disassembly and assembly of components, optimizing overall size and weight for easy portability. Whether for hikers, mountaineers, or emergency rescue personnel, the device can be easily placed in a backpack or carrying case, ready to cope with hypoxic environments, greatly enhancing the overall portability. A pressure regulating valve 21 is installed on the gas supply pipe 2 near the gas tank 18.

[0038] Preferably, the gas supply pipe 2 is a flexible ventilation hose;

[0039] Preferably, the power supply 11 is removable within the housing 1 for easy and quick battery replacement.

[0040] See Figure 5 An air inlet 31 is installed at one end of the side of the mask body 3, and an air outlet 32 ​​is installed at the other end. A third valve-type one-way valve 38 is installed at the end of the air inlet 31, and a fourth valve-type one-way valve 39 is installed at the end of the air outlet 32. This ensures unidirectional gas flow, avoids ineffective gas circulation within the mask during breathing, and improves oxygen utilization and breathing efficiency. Especially in hypoxic environments, it can quickly respond to pressure changes and provide a stable airflow for the user. A first baffle 33 is installed inside the mask body 3. A second baffle 35 is fixedly installed on the first baffle 33 via a spindle 34 located to the left of the centerline of the mask body 3. When the air pressure is constant, the first baffle 33 is located at the air inlet 31, used for... The second baffle 35 is located at the outlet 32 ​​to prevent oxygen from entering the interior of the mask body 3. When the air pressure is not constant, the spindle 34 drives the first baffle 33 and the second baffle 35 to rotate. Through the setting of the spindle 34, the first baffle 33 and the second baffle 35, the torque generated when the air pressure changes due to inhalation and exhalation can flexibly control the opening and closing of the inlet and outlet, ensuring the smoothness and efficiency of the breathing process, reducing breathing resistance and improving user comfort. The rear ends of the mask body 3 are respectively equipped with fixing parts 37. One end of the fixing part 37 is equipped with the mask body 3, and the other end is equipped with a wearing strap 36 for fixing the breathing mask to the head.

[0041] Preferably, the spindle 34 is located 1 cm to the left of the center line of the mask body 3, the length of the first baffle 33 is approximately 3 cm, the length of the second baffle 35 is approximately 5 cm, the width of the first baffle 33 and the second baffle 35 is 4 cm, the area of ​​the first baffle 33 is approximately 12 cm², and the area of ​​the second baffle 35 is approximately 20 cm².

[0042] Preferably, during exhalation, the air pressure inside the mask body 3 increases, and for every 0.01 standard atmospheres increase, (20) 2.5-12 1.5) 0.01 1.01 100000 / 1000000=0.032 Nm of torque, pushing the first baffle 33 and the second baffle 35 to rotate counterclockwise, exposing the air outlet 32; conversely, during inhalation, the air pressure inside the mask body 3 decreases, and for every 0.01 standard atmospheres decrease, (20 2.5-12 1.5) 0.01 1.01 100000 / 1000000=0.032 Nm of reverse torque, which pushes the first baffle 33 and the second baffle 35 to rotate clockwise, exposing the air inlet 31, and realizing the connection change of the air inlet 31 and the air outlet 32 ​​according to the breathing state.

[0043] Preferably, the shape of the mask body 3 is designed to fit the face, and can be worn with a motorcycle helmet or a Kevlar helmet at the same time. It is suitable for the needs of civilian tourism and cycling in high-altitude areas as well as military needs in high-altitude areas. It can also improve working conditions in underground positions or tunnel construction sites.

[0044] Preferably, the wearing strap 36 adopts a design of two pairs of textile elastic bands, which is different from the traditional ear-hook style. It wraps around the back of the head above and below the ears and is connected by Velcro, which can improve comfort while ensuring airtightness.

[0045] The structure and working principle of this utility model will be further explained below:

[0046] The purpose of this invention is to provide a portable oxygen-generating breathing device based on membrane separation technology. The device includes the following steps:

[0047] When the power supply 11 is turned on, the reciprocating motor 12 starts, and the external gas enters the cylinder 15 through the second valve 19. The reciprocating motor 12 drives the push rod 13, and the push rod 13 drives the piston 14 to reciprocate within the cylinder 15, thereby pressurizing the external gas to form high-pressure gas.

[0048] High-pressure gas passes through the oxygen-enriched separation membrane 17 under pressure difference, generating high-concentration oxygen inside the outlet 151. The high-concentration oxygen enters the gas storage tank 18 through the first valve-type one-way valve 16. The reciprocating motor 12 drives the piston 14 to reciprocate within the cylinder 15, pressurizing the external gas to form high-pressure gas. When the high-pressure gas passes through the oxygen-enriched separation membrane 17, oxygen molecules have a higher permeability in the membrane than other gas molecules, thus accumulating and generating oxygen inside the outlet. This process is efficient and continuous, providing a high concentration of oxygen quickly. By turning on the power supply 11 and starting the reciprocating motor 12 when needed, the oxygen generation and breathing process can begin. This is suitable for outdoor adventures, high-altitude travel, emergency rescue, and other scenarios, providing users with immediate oxygen support.

[0049] Oxygen from the gas storage tank 18 enters the breathing mask through the gas supply pipe 2, and breathing is performed through the breathing mask, specifically including:

[0050] When inhaling, the air pressure inside the mask body 3 decreases. For every 0.01 standard atmospheres decrease, (20) air is generated. 2.5-12 1.5) 0.01 1.01 100000 / 1000000=0.032 Nm reverse torque, the pressure at the first baffle 33 is greater than the pressure at the second baffle 35, the first baffle 33 and the second baffle 35 rotate clockwise through the spindle 34, the air inlet 31 opens, and oxygen enters the interior of the mask body 3 through the third valve type one-way valve 38 at the end of the air inlet 31;

[0051] When exhaling, the air pressure inside the mask body 3 increases. For every 0.01 standard atmospheres increase, (20) air is generated. 2.5-12 1.5) 0.01 1.01 100000 / 1000000=0.032 Nm torque, the pressure at the second baffle 35 is greater than the pressure at the first baffle 33, the first baffle 33 and the second baffle 35 rotate counterclockwise through the spindle 34, the air outlet 32 ​​opens, and the exhaled gas is discharged to the outside through the fourth valve type one-way valve 39 at the end of the air outlet 32;

[0052] The first baffle 33 and the second baffle 35 inside the breathing mask automatically open and close the air inlet 31 and the air outlet 32 ​​through the rotation of the spindle 34. This allows the breathing mask to adaptively adjust according to the user's inhalation and exhalation without the need for additional electricity or mechanical assistance, thus improving the smoothness and naturalness of breathing. During inhalation, the air inlet 31 automatically opens, allowing oxygen from the gas tank 18 to enter the mask. During exhalation, the air outlet 32 ​​automatically opens, while the air inlet 31 closes, preventing the exhaled waste gas from being re-inhaled. This effectively improves oxygen utilization efficiency and reduces unnecessary oxygen waste.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A portable oxygen breathing apparatus based on membrane separation technology, characterized in that, Includes an oxygen supply device, which is connected to a breathing mask via an air supply pipe (2); The oxygen supply device includes a shell (1), a power unit is installed inside the shell (1), an oxygen generator is coaxially connected to the power unit, a gas storage tank (18) is installed at the bottom of the oxygen generator, and the gas storage tank (18) is connected to a breathing mask through a gas delivery pipe (2). The oxygen generating device includes a cylinder (15), inside which a piston (14) is installed. The piston (14) is connected to a push rod (13). The push rod (13), piston (14) and cylinder (15) are coaxially connected to a power device. The bottom of the cylinder (15) is connected to an air storage tank (18) through an outlet end (151). An oxygen-enriched separation membrane (17) is installed inside the outlet end (151). A first valve-type one-way valve (16) is installed at the port of the outlet end (151). The first valve-type one-way valve (16) is located at the bottom of the oxygen-enriched separation membrane (17). The top of the cylinder (15) is connected to the outside through the outer shell (1) through an inlet end (152). A second valve-type one-way valve (19) is installed at the port of the inlet end (152).

2. The portable oxygen making breathing apparatus based on membrane separation technology according to claim 1, characterized in that, The power unit is equipped with an external heat insulation partition (4).

3. The portable oxygen making breathing apparatus based on membrane separation technology according to claim 2, characterized in that, The power unit includes a reciprocating motor (12), a power supply (11) is installed at the bottom of the reciprocating motor (12), and the reciprocating motor (12) is coaxially connected with the push rod (13), piston (14) and cylinder (15). The reciprocating motor (12) is used to drive the push rod (13), and the push rod (13) drives the piston (14) to reciprocate within the cylinder (15).

4. The portable oxygen making breathing apparatus based on membrane separation technology according to claim 3, characterized in that, The power supply (11) has a charging port (111) that passes through the outer shell (1) and the insulation partition (4).

5. The portable oxygen making breathing apparatus based on membrane separation technology according to claim 1, characterized in that, The oxygen generating device is equipped with a gas storage tank (18) via a partition (5).

6. The portable oxygen making breathing apparatus based on membrane separation technology according to claim 1, characterized in that, One end of the gas supply pipe (2) is detachably connected to the gas storage tank (18), and the other end is connected to the breathing mask via a pin (23). A ring (24) is installed at the end of the pin (23) for pulling out the pin. Silicone rubber rings (22) are also installed at the connection points between the gas supply pipe (2), the gas storage tank (18), and the breathing mask to prevent oxygen leakage.

7. The portable oxygen making breathing apparatus based on membrane separation technology according to claim 6, characterized in that, A pressure regulating valve (21) is installed on one end of the gas pipeline (2) near the gas storage tank (18).

8. The portable oxygen making breathing apparatus based on membrane separation technology according to claim 1, characterized in that, The breathing mask includes a mask body (3), with fixing parts (37) installed at both ends of the rear part of the mask body (3), an air inlet (31) installed at one end of the side part of the mask body (3), a third valve type one-way valve (38) installed at the end of the air inlet (31), the air inlet (31) is connected to the air storage tank (18) through the air supply pipe (2), and an air outlet (32) is installed at the other end, with a fourth valve type one-way valve (39) installed at the end of the air outlet (32).

9. The portable oxygen making breathing apparatus based on membrane separation technology according to claim 8, characterized in that, The mask body (3) is equipped with a first baffle (33) inside. The first baffle (33) is fixed with a second baffle (35) by a spindle (34). The spindle (34) is located to the left of the center line of the mask body (3). When the air pressure is constant, the first baffle (33) is located at the air inlet (31) to prevent oxygen from entering the interior of the mask body (3). The second baffle (35) is located at the air outlet (32) to prevent gas from being discharged through the air outlet (32). When the air pressure is not constant, the spindle (34) is used to drive the first baffle (33) and the second baffle (35) to rotate.

10. The portable oxygen making breathing apparatus based on membrane separation technology according to claim 8, characterized in that, One end of the fixing part (37) is fitted with the mask body (3), and the other end is fitted with a wearing strap (36) for fixing the breathing mask to the head.

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