A flexible portable hyperbaric oxygen chamber

Abstract

This invention discloses a flexible portable hyperbaric oxygen chamber, comprising a horizontally arranged hyperbaric oxygen chamber body and a gas source control system disposed on one side of the chamber body. The main body of the hyperbaric oxygen chamber body is made of high-strength polymer-based composite material, exhibiting good fatigue resistance, high damage resistance and safety performance, good damping and vibration reduction, good timely high-temperature resistance, good ablation resistance, excellent electrical insulation and high-frequency dielectric properties, good frictional properties, excellent corrosion resistance, and excellent pressure resistance. All components can be prefabricated, resulting in a simple structure, convenient and quick installation, and easy operation and portability. The easily foldable hyperbaric oxygen chamber body, made of high-strength polymer-based composite material, is lightweight and foldable for easy carrying, suitable for daily home oxygen inhalation, high-altitude areas, and emergency rescue.

Description

Technical Field

[0001] This invention relates to the field of hyperbaric oxygen chamber technology, and in particular to a flexible portable hyperbaric oxygen chamber. Background Technology

[0002] Nowadays, urban pollution, stress, and a fast-paced lifestyle leave many people in a state of oxygen deficiency, leading to sub-health conditions such as poor sleep quality, difficulty concentrating, fatigue, and weakened immunity. Improving this sub-health condition often requires hospital visits for oxygen therapy, which is time-consuming, laborious, and expensive. Hospital-equipped steel hyperbaric oxygen chambers are bulky, difficult to move, and take up a lot of space when not in use, making it impossible to incorporate this practice into everyday life in many households. Summary of the Invention

[0003] To overcome the shortcomings mentioned above, this invention aims to provide a flexible portable hyperbaric oxygen chamber that is highly pressure-resistant, fatigue-resistant, corrosion-resistant, lightweight, easy to fold, simple to operate, and can be quickly deployed and retrieved.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a flexible portable hyperbaric oxygen chamber, comprising a horizontally arranged hyperbaric oxygen chamber body and a gas source control system disposed on one side of the hyperbaric oxygen chamber body, wherein the gas source control system is connected to the hyperbaric oxygen chamber body.

[0005] The top of the hyperbaric oxygen chamber has an inlet and outlet along the axial direction. The inlet and outlet are equipped with a zipper sealing area. A row of high-strength stainless steel shackles is installed on the upper part of the zipper sealing area. The stainless steel shackles are used to reinforce the zipper sealing area and reduce circumferential strain in the zipper tooth engagement area under high pressure. The stainless steel shackles effectively reinforce the local stress of the zipper sealing area.

[0006] The hyperbaric oxygen chamber features symmetrically placed high-precision spring-loaded self-opening safety valves at one end of the gas source control system. Along the length of the zipper-sealed area on one side of the chamber body, an inlet valve, pressure gauge, manual pressure relief valve, and exhaust valve are sequentially located. The exhaust end, located next to the exhaust valve, has two reinforced viewing windows. All components can be prefabricated, resulting in a simple structure and quick and easy installation. The main body of the chamber is made of high-strength polymer-based composite material, making it lightweight, foldable, and portable. It can be used for daily home oxygen therapy, in high-altitude areas, and for emergency rescue operations.

[0007] As a further aspect of the present invention: the zipper sealing area includes an inner and outer double-layer structure, the inner and outer double-layer structure includes an outer layer formed by the body of the hyperbaric oxygen chamber and an inner zipper connecting layer provided on the inner wall of the hyperbaric oxygen chamber, the zipper sealing area is provided with a zipper opening as the only inlet and outlet of the hyperbaric oxygen chamber, the outer zipper opening is provided with an outer zipper, the outer zipper is a long zipper, the zipper opening of the inner zipper connecting layer is provided with an inner zipper, the inner zipper is a short zipper, and zipper fabric is provided around both the outer zipper and the inner zipper, the upper and lower surfaces of the zipper fabric are coated with a thermoplastic elastomer polyurethane coating;

[0008] The inner zipper connecting layer is connected to the zipper fabric of the inner zipper by high-frequency welding, and the inner zipper connecting layer is bonded to the hyperbaric oxygen chamber body by high-frequency welding.

[0009] The hyperbaric oxygen chamber body and the zipper fabric of the outer zipper are bonded together by high-frequency welding.

[0010] As a further embodiment of the present invention: the zipper teeth of the outer zipper and the inner zipper are both made of special plastic steel material; after the short zipper and the long zipper are closed respectively, the upper and lower surfaces of the zipper teeth interlocking area are covered with a layer of thermoplastic elastomer polyurethane material.

[0011] As a further embodiment of the present invention: the hyperbaric oxygen chamber body is made of a high-strength polymer-based composite material, which includes an upper matrix and a lower matrix, with a high-strength tensile reinforcing fiber layer between the upper matrix and the lower matrix. The reinforcing fiber layer is woven into a mesh fiber structure. The upper matrix and the lower matrix are respectively processed with the mesh fiber structure through impregnation, shaping and curing processes. The polymer-based composite material has excellent fatigue resistance and flexibility, and can be repeatedly folded and reused.

[0012] The hyperbaric oxygen chamber can be manufactured as a cylindrical chamber with a diameter greater than 500mm, a length greater than 2300mm, and a burst pressure of not less than 0.4Mpa.

[0013] As a further embodiment of the present invention: the hyperbaric oxygen chamber body is provided with a first reinforcing layer and a second reinforcing layer that can be opened, one of which covers the top of the outer zipper. Both the first and second reinforcing layers are made of high-strength polymer-based composite materials. The side of the first and second reinforcing layers away from the stainless steel shackles is bonded to the outer wall of the hyperbaric oxygen chamber body by high-frequency welding; the high-frequency welding is firm and reliable.

[0014] The plurality of stainless steel shackles are evenly distributed along the joint direction between the first reinforcing layer and the second reinforcing layer, and a pair of mating buckles are provided on the mating edge of the first reinforcing layer and the second reinforcing layer facing each other.

[0015] The stainless steel shackle includes a U-bolt and a connecting bolt. The U-bolt includes a first straight rod and a second straight rod. The first straight rod passes through a mating ring of the first reinforcing layer and has a screw hole at its end. The second straight rod of the U-bolt passes through another mating ring of the second reinforcing layer and has a connecting hole at its end. The connecting bolt passes through the connecting hole and engages with the screw hole to pull the first reinforcing layer and the second reinforcing layer together.

[0016] As a further aspect of the present invention: the stainless steel shackle is made of S304 high-strength stainless steel and is a detachable structure, effectively preventing circumferential strain in the zipper tooth engagement area during the pressurization process of the hyperbaric oxygen chamber;

[0017] When the flexible portable hyperbaric oxygen chamber is in a pressurized state, the stainless steel shackles effectively maintain the structural shape of the hyperbaric oxygen chamber and effectively prevent circumferential strain in the zipper tooth engagement area under high pressure.

[0018] When the hyperbaric oxygen chamber is depressurized, the stainless steel shackles can be quickly disassembled.

[0019] As a further embodiment of the present invention: the gas source control system includes an air compressor, an oxygen mixer and an oxygen generator. The power supply mode of the gas source control system is divided into power supply and battery power supply. The gas source control system can preset the internal pressure of the hyperbaric oxygen chamber, the usage time and the gas flow rate according to the usage requirements, and detect the oxygen concentration inside the hyperbaric oxygen chamber in real time.

[0020] As a further embodiment of the present invention: the pressure gauge monitors the pressure inside the hyperbaric oxygen chamber in real time to determine the gas pressure inside the oxygen chamber;

[0021] When the internal pressure of the hyperbaric oxygen chamber exceeds the maximum working pressure, a high-precision spring-loaded self-opening safety valve automatically releases pressure, ensuring the safety of the personnel inside and preventing damage to the hyperbaric oxygen chamber under high pressure.

[0022] When the pressure inside the hyperbaric oxygen chamber is too high or the user feels uncomfortable, press the button inside the manual pressure relief valve to quickly release the pressure.

[0023] As a further embodiment of the present invention: the two reinforcing windows include a first reinforcing window and a second reinforcing window. The first reinforcing window is disposed on the surface of the hyperbaric oxygen chamber body, and the second reinforcing window is disposed at the end of the hyperbaric oxygen chamber body. Both the first and second reinforcing windows are high-strength, high-transparency PC reinforcing windows, enabling real-time monitoring and observation of the internal environment of the hyperbaric oxygen chamber. The PC reinforcing window comprises an outer TPU soft hard film and an inner TPU soft hard film, with a PC board disposed between the outer and inner TPU soft hard films. The outer TPU soft hard film sandwiches the PC board between the inner TPU soft hard films, and the outer TPU soft hard film is then bonded to the outer surface of the hyperbaric oxygen chamber body using high-frequency welding. The reinforcing windows are made of environmentally friendly thermoplastic elastomer, enabling external personnel to monitor and observe the interior of the hyperbaric oxygen chamber body in real time. The reinforcing windows are a non-removable structure relative to the hyperbaric oxygen chamber body, ensuring stable and reliable fixation.

[0024] As a further embodiment of the present invention: the air inlet valve is used to deliver air, oxygen and other required gases inside the hyperbaric oxygen chamber in real time and quickly; the air inlet valve is used to set the operating pressure, operating time and gas filling flow rate inside the hyperbaric oxygen chamber, to prevent the filling flow rate inside the oxygen chamber from being too fast or the filling pressure from being too high during operation, which could cause discomfort to personnel or damage to the oxygen chamber.

[0025] The exhaust valve discharges CO2 gas from inside the hyperbaric oxygen chamber, promoting gas circulation inside the chamber during dynamic constant pressure operation.

[0026] The beneficial effects of this invention are as follows: The technical solution of this invention includes a horizontally positioned hyperbaric oxygen chamber and a gas source control system located on one side of the chamber. The main body of the hyperbaric oxygen chamber is made of high-strength polymer-based composite material, which has good fatigue resistance, high damage resistance and safety performance, good damping and vibration reduction, good timely high-temperature resistance, good ablation resistance, excellent electrical insulation and high-frequency dielectric properties, good frictional properties, excellent corrosion resistance, and excellent pressure resistance. All components can be prefabricated, resulting in a simple structure, convenient and quick installation, easy operation, and portability. The foldable hyperbaric oxygen chamber body, made of high-strength polymer-based composite material, is lightweight, foldable, and easy to carry, suitable for daily home oxygen inhalation activities, high-altitude areas, and emergency rescue. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0028] Figure 1 This is a front view of the flexible portable hyperbaric oxygen chamber of the present invention:

[0029] Figure 2 This is a top view of the flexible portable hyperbaric oxygen chamber of the present invention:

[0030] Figure 3 This is a partial enlarged view of node I of the flexible portable hyperbaric oxygen chamber of the present invention:

[0031] Figure 4 This is a view from direction A of the flexible portable hyperbaric oxygen chamber of the present invention.

[0032] In the diagram: 1-Gas source control system, 2-Hyperbaric oxygen chamber body, 3-High-precision spring-loaded self-opening safety valve, 4-Inlet valve, 5-Pressure gauge, 6-First reinforcing layer, 601-Second reinforcing layer, 611-Matching buckle, 7-Manual pressure relief valve, 8-Exhaust valve, 9-Stainless steel shackle, 901-U-bolt, 911-First straight rod, 912-Second straight rod, 913-Screw hole, 914-Connecting hole, 902-Connecting bolt, 10-Zipper sealing area, 11-Inner zipper, 12-Outer zipper, 13-Reinforcing window, 1301 Outer TPU soft hard film, 1303 Inner TPU soft hard film, 1302-PC board. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0034] Please see the appendix Figure 1-3 In this embodiment of the invention, a flexible portable hyperbaric oxygen chamber includes a horizontally arranged hyperbaric oxygen chamber body 2 and a gas source control system 1 disposed on one side of the hyperbaric oxygen chamber body. The gas source control system is connected to the hyperbaric oxygen chamber body. Personnel who need to undergo hyperbaric oxygen recovery enter the hyperbaric oxygen chamber body. The gas source control system 1 includes an air compressor, an oxygen mixer, and an oxygen generator. The power supply mode of the gas source control system is divided into power supply by a power source and battery power supply. The gas source control system can preset the internal pressure of the hyperbaric oxygen chamber, the usage time, and the gas flow rate according to the usage requirements, and monitor the oxygen concentration inside the hyperbaric oxygen chamber in real time.

[0035] The hyperbaric oxygen chamber is a cylindrical chamber with a diameter of 600 mm, a length of 2400 mm, and a burst pressure of 0.4 MPa.

[0036] The hyperbaric oxygen chamber 2 is made of high-strength polymer-based composite material, which includes an upper matrix and a lower matrix. A reinforcing fiber layer with high tensile strength is provided between the upper matrix and the lower matrix. The reinforcing fiber layer is made of woven fiber into a mesh fiber structure. The upper matrix and the lower matrix are respectively processed with the mesh fiber structure through impregnation, shaping and curing.

[0037] The hyperbaric oxygen chamber has an inlet and outlet along its axial direction at the top. A zipper-sealed area 10 is provided at each inlet and outlet. This zipper-sealed area has a double-layer structure, consisting of an outer layer formed by the chamber body and an inner zipper connecting layer on the inner wall of the chamber. The zipper-sealed area serves as the only inlet and outlet for the hyperbaric oxygen chamber. An outer zipper 12 (long) is located at the outer zipper opening, while an inner zipper 11 (short) is located at the zipper opening of the inner zipper connecting layer. Both the outer and inner zippers are surrounded by zipper fabric, with both the upper and lower surfaces coated with a thermoplastic elastomer polyurethane coating. The coating is thicker on the surface where welding is performed, and thinner on the other surface. The zipper teeth of both the outer and inner zippers are made of special plastic steel material. After the short and long zippers are closed, both the upper and lower surfaces of the tooth engagement area are covered with a layer of thermoplastic elastomer polyurethane material.

[0038] The inner zipper connecting layer is connected to the zipper fabric of the inner zipper around its circumference using high-frequency welding. The inner zipper connecting layer is also bonded to the hyperbaric oxygen chamber body using high-frequency welding. High-frequency welding is a method that utilizes the thermal effect generated by a high-frequency electromagnetic field to melt the material, causing the molecules within the material to rearrange and thus achieving material bonding. During the welding process, the welding current, welding time, and setting time are manually controlled by the equipment. The hyperbaric oxygen chamber body is bonded to the outer zipper fabric around its circumference using high-frequency welding.

[0039] At the beginning, the outer zipper 12 is opened and closed, and oxygen is continuously filled into the flexible hyperbaric oxygen chamber to expand. The personnel who are recovering from hyperbaric oxygen release open the zipper from the outside and enter the hyperbaric oxygen chamber. Then they close the inner zipper themselves, and the external assistants close the outer zipper from the outside to achieve a complete seal of the hyperbaric oxygen chamber.

[0040] The hyperbaric oxygen chamber body is provided with a first reinforcing layer 6 and a second reinforcing layer 601 that can be opened. One of the reinforcing layers covers the top of the outer zipper. Both the first and second reinforcing layers are made of high-strength polymer-based composite materials. The first and second reinforcing layers are made of the same material as the hyperbaric oxygen chamber body. The side of the first and second reinforcing layers away from the stainless steel shackles is bonded to the outer wall of the hyperbaric oxygen chamber body by high-frequency welding.

[0041] The 12 stainless steel shackles are evenly distributed along the joint between the first and second reinforcing layers. A pair of mating rings are positioned opposite each other on the mating edges of the first and second reinforcing layers. The mating rings are made of the same polymer-based composite material as the reinforcing layers. Each mating ring is pre-sewn onto the joint between the first and second reinforcing layers.

[0042] A row of high-strength stainless steel shackles 9 is provided at the upper part of the zipper sealing area. Each shackle includes a U-shaped bolt 901 and a connecting bolt 902. The U-shaped bolt includes a first straight rod 911 and a second straight rod 912. The first straight rod passes through a mating ring 611 of the first reinforcing layer, and its end has a screw hole 913. The second straight rod of the U-shaped bolt passes through another corresponding mating ring of the second reinforcing layer, and its end has a connecting hole 914. The connecting bolt 902 passes through the connecting hole and engages with the screw hole threadedly, thus pulling the first and second reinforcing layers together. The stainless steel shackles are used to reinforce the zipper sealing area and reduce circumferential strain in the zipper tooth engagement area under high pressure.

[0043] Personnel undergoing hyperbaric oxygen therapy enter the hyperbaric oxygen chamber, zip up both the inner and outer zippers, and then cover the first reinforcing layer 6 and the second reinforcing layer 601 facing each other, with the zipper sealing area covered by one of the reinforcing layers. The stainless steel shackle is made of S304 high-strength stainless steel and is a detachable structure. The first and second straight rods of the U-shaped bolt are respectively inserted into the corresponding mating buckles, and the connecting bolts pass through the connecting holes and are threaded into the screw holes for tightening.

[0044] When oxygen is introduced into the hyperbaric oxygen chamber, the chamber gradually expands. During the pressurization process, the circumferential strain in the zipper tooth engagement area increases significantly. The stainless steel shackles effectively maintain the structural shape of the hyperbaric oxygen chamber and prevent circumferential strain in the zipper tooth engagement area during pressurization.

[0045] When the hyperbaric oxygen chamber is depressurized, the circumferential strain in the zipper tooth engagement area decreases until there is no circumferential strain, allowing for quick disassembly of the stainless steel shackles. First, loosen the connecting bolts to separate them from the bolt holes, then pull them out of the connecting holes. Finally, remove the first and second straight rods of the U-bolt from the mating rings of the first reinforcing layer 6 and the second reinforcing layer 601, respectively. The first and second reinforcing layers are then peeled apart to both sides, exposing the zipper sealing area. The outer zipper can be opened, and personnel undergoing hyperbaric oxygen recovery inside the chamber can open the inner zipper from the inside to exit through the hyperbaric oxygen chamber's inlet and outlet.

[0046] The hyperbaric oxygen chamber is symmetrically equipped with high-precision spring-loaded self-opening safety valves 3 at one end of the gas source control system.

[0047] Along the length of the zipper-sealed area on one side of the hyperbaric oxygen chamber body, an inlet valve 4, a pressure gauge 5, a manual pressure relief valve 7, and an exhaust valve 8 are sequentially installed. The inlet valve 4 is used to supply air, oxygen, and other required gases to the hyperbaric oxygen chamber in real time and quickly. The gas source control system is connected to the hyperbaric oxygen chamber through the inlet pipe outside the inlet valve interface. When the inlet valve is opened, the operating pressure, operating time, and gas filling flow rate are set to provide the filling gas medium to the hyperbaric oxygen chamber, ensuring the stability of the filling flow rate and filling pressure. The gas source control system and the inlet valve complete the real-time monitoring of the oxygen concentration inside the chamber.

[0048] The pressure gauge 5 is a high-precision mechanical pressure gauge that monitors the internal pressure of the hyperbaric oxygen chamber in real time to determine the gas pressure situation. When the internal pressure of the hyperbaric oxygen chamber exceeds the maximum working pressure, the high-precision spring-loaded self-opening safety valve 3 automatically releases pressure. The two high-precision spring-loaded self-opening safety valves 3 work to ensure that the hyperbaric oxygen chamber is not damaged or personnel are injured due to excessive internal pressure. When the internal pressure of the hyperbaric oxygen chamber is too high or the user feels uncomfortable, pressing the button inside the manual pressure relief valve 7 allows for rapid pressure relief.

[0049] The exhaust valve 8 discharges CO2 gas from inside the hyperbaric oxygen chamber, promoting gas circulation inside the chamber during dynamic constant pressure operation.

[0050] Please see the appendix Figure 4 The hyperbaric oxygen chamber body is located on the side of the exhaust valve as the exhaust end, and the exhaust end is equipped with two reinforcing windows 13. The two reinforcing windows 13 include a first reinforcing window and a second reinforcing window. The first reinforcing window is located on the surface of the hyperbaric oxygen chamber body, and the second reinforcing window is located at the end of the hyperbaric oxygen chamber body. Both the first and second reinforcing windows are high-strength and highly transparent PC reinforcing windows, which are used to monitor and observe the internal environment of the hyperbaric oxygen chamber in real time. The PC reinforcing window includes an outer TPU soft hard film 1301 and an inner TPU soft hard film 1303. A PC board 1302 is provided between the outer TPU soft hard film and the inner TPU soft hard film. The PC board has a diameter of 230mm and a thickness of 4mm. The outer TPU soft hard film sandwiches the PC board between the inner TPU soft hard film, and then the outer TPU soft hard film is bonded to the outer surface of the hyperbaric oxygen chamber body by high-frequency welding. The two reinforced viewing windows are sealed together with the hyperbaric oxygen chamber body to form a whole, with good sealing performance, no air leakage, and easy real-time monitoring and observation of the internal condition of the hyperbaric oxygen chamber.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible portable hyperbaric chamber, characterized in that, It includes a horizontally arranged hyperbaric oxygen chamber body (2) and a gas source control system (1) set on one side of the hyperbaric oxygen chamber body. The gas source control system is connected to the hyperbaric oxygen chamber body. The top of the hyperbaric oxygen chamber body is provided with an inlet and outlet along the axial direction. A zipper sealing area (10) is provided at the inlet and outlet. A row of high-strength stainless steel buckles (9) is provided on the upper part of the zipper sealing area. The stainless steel buckles are used to reinforce the zipper sealing area and reduce the circumferential strain in the zipper tooth engagement area under high pressure. The high-pressure oxygen chamber is symmetrically equipped with a high-precision spring-loaded self-opening safety valve (3) at one end of the gas source control system. Along the length of the zipper sealing area on one side of the high-pressure oxygen chamber, there are an air inlet valve (4), a pressure gauge (5), a manual pressure relief valve (7), and an exhaust valve (8). The high-pressure oxygen chamber is located on the side of the exhaust valve (8) as the exhaust end. The exhaust end is equipped with two reinforced viewing windows (13). The zipper sealing area (10) includes an inner and outer double-layer structure, which includes an outer layer formed by the body of the hyperbaric oxygen chamber and an inner zipper connecting layer provided on the inner wall of the hyperbaric oxygen chamber. The zipper sealing area has a zipper opening that serves as the only inlet and outlet of the hyperbaric oxygen chamber. An outer zipper (12) is provided at the zipper opening of the outer layer. The outer zipper is a long zipper. An inner zipper (11) is provided at the zipper opening of the inner zipper connecting layer. The inner zipper is a short zipper. Zipper cloth is provided around both the outer and inner zippers. The upper and lower surfaces of the zipper cloth are coated with a thermoplastic elastomer polyurethane coating. The inner zipper connecting layer is connected to the zipper cloth of the inner zipper by high-frequency welding. The inner zipper connecting layer is bonded to the body of the hyperbaric oxygen chamber by high-frequency welding. The body of the hyperbaric oxygen chamber is bonded to the zipper cloth of the outer zipper by high-frequency welding. The hyperbaric oxygen chamber is provided with a first reinforcing layer (6) and a second reinforcing layer (601) that can be opened. One of the reinforcing layers covers the top of the outer zipper. Both the first and second reinforcing layers are made of high-strength polymer-based composite materials. The side of the first and second reinforcing layers away from the stainless steel shackles is bonded to the outer wall of the hyperbaric oxygen chamber by high-frequency welding. The plurality of stainless steel shackles (9) are evenly distributed along the joint direction between the first reinforcing layer and the second reinforcing layer, and a pair of butt buckles (611) are provided on the butt joint edge of the first reinforcing layer and the second reinforcing layer facing each other. The stainless steel shackle (9) includes a U-bolt (901) and a connecting bolt (902). The U-bolt includes a first straight rod (911) and a second straight rod (912). The first straight rod passes through a mating ring (611) of the first reinforcing layer and has a screw hole (913) at its end. The second straight rod of the U-bolt passes through another mating ring of the second reinforcing layer and has a connecting hole (914) at its end. The connecting bolt passes through the connecting hole and engages with the screw hole threadedly to pull the first reinforcing layer and the second reinforcing layer together.

2. The flexible portable hyperbaric oxygen chamber according to claim 1, characterized in that, The zipper teeth of the outer zipper (12) and the inner zipper (11) are made of special plastic steel material; after the short zipper and the long zipper are pulled together, the upper and lower surfaces of the zipper teeth biting area are covered with a layer of thermoplastic elastomer polyurethane material.

3. The flexible portable hyperbaric oxygen chamber according to claim 1, characterized in that, The hyperbaric oxygen chamber is made of a high-strength polymer-based composite material, which includes an upper matrix and a lower matrix. A high-strength tensile reinforcing fiber layer is provided between the upper matrix and the lower matrix. The reinforcing fiber layer is made of woven fiber into a mesh structure. The upper matrix and the lower matrix are respectively processed with the mesh structure through impregnation, shaping and curing. The hyperbaric oxygen chamber can be made into a cylindrical chamber with a diameter greater than 500 mm, a length greater than 2200 mm and a burst pressure of not less than 0.4 MPa.

4. The flexible portable hyperbaric oxygen chamber according to claim 1, characterized in that, The stainless steel shackle is made of S304 high-strength stainless steel and is a detachable structure, which effectively prevents circumferential strain in the zipper tooth engagement area during the pressurization process of the hyperbaric oxygen chamber. When the flexible portable hyperbaric oxygen chamber is in the pressurized state, the stainless steel shackle (9) effectively maintains the structural shape of the hyperbaric oxygen chamber and effectively prevents circumferential strain in the zipper tooth engagement area under high pressure. When the hyperbaric oxygen chamber is in the depressurization state, the stainless steel shackle (9) can be quickly disassembled.

5. The flexible portable hyperbaric oxygen chamber according to claim 1, characterized in that, The gas source control system (1) includes an air compressor, an oxygen mixer and an oxygen generator. The power supply mode of the gas source control system is divided into power supply and battery power supply. The gas source control system can preset the internal pressure, usage time and gas flow of the hyperbaric oxygen chamber according to the usage requirements, and detect the oxygen concentration inside the hyperbaric oxygen chamber in real time.

6. The flexible portable hyperbaric oxygen chamber according to claim 1, characterized in that, The pressure gauge (5) monitors the pressure inside the hyperbaric oxygen chamber in real time and determines the gas pressure inside the oxygen chamber. When the internal pressure of the hyperbaric oxygen chamber exceeds the maximum working pressure, the high-precision spring-loaded self-opening safety valve (3) automatically releases pressure. When the pressure inside the hyperbaric oxygen chamber is too high or the user feels uncomfortable, press the button inside the manual pressure relief valve (7) to quickly relieve the pressure.

7. The flexible portable hyperbaric oxygen chamber according to claim 1, characterized in that, The two reinforcing windows (13) include a first reinforcing window and a second reinforcing window. The first reinforcing window is set on the surface of the hyperbaric oxygen chamber, and the second reinforcing window is set at the end of the hyperbaric oxygen chamber. Both the first and second reinforcing windows are high-strength and high-transparency PC reinforcing windows, which are used to monitor and observe the internal environment of the hyperbaric oxygen chamber in real time. The PC reinforcing window includes an outer TPU soft hard film (1301) and an inner TPU soft hard film (1303). A PC board (1302) is provided between the outer TPU soft hard film and the inner TPU soft hard film. The outer TPU soft hard film holds the PC board between the inner TPU soft hard film, and then the outer TPU soft hard film is bonded to the outer surface of the hyperbaric oxygen chamber by high-frequency welding.

8. The flexible portable hyperbaric oxygen chamber according to claim 1, characterized in that, The air intake valve (4) is used to supply air, oxygen and other required gases to the hyperbaric oxygen chamber in real time and quickly; the exhaust valve (8) discharges CO2 gas from the hyperbaric oxygen chamber, promoting gas circulation inside the hyperbaric oxygen chamber during dynamic constant pressure operation.

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