Carbon glass hybrid fiber reinforced composite material oxygen cabin and preparation method thereof

Abstract

The invention discloses a carbon glass hybrid fiber reinforced composite material oxygen bin and a preparation method thereof.The oxygen bin comprises a bin body and end covers arranged on the two sides of the bin body, the bin body comprises a glass fiber main body structure and carbon fiber supporting structures, and the carbon fiber supporting structures are arranged at the corners of the bin body; the carbon fiber supporting structure is embedded in the glass fiber main body structure, the carbon fiber supporting structure and the glass fiber main body structure are arranged in a stacked and staggered mode, screw holes are formed in the side walls of the two sides of the cabin body, and the end cover is connected with the cabin body through bolts and the screw holes. According to the carbon-glass hybrid fiber reinforced composite material oxygen bin, the bin body is prepared from the glass fibers, the weight of the oxygen bin can be reduced, the strength of the oxygen bin is improved, meanwhile, good corrosion resistance is achieved, and the portability and installation convenience of the oxygen bin are improved. The carbon fiber supporting structures are embedded into the glass fiber main body structure layer and are arranged in a stacked and staggered mode, and the strength of the cabin body is further enhanced.

Description

Technical Field

[0001] The invention relates to the field of high-pressure oxygen chambers, and in particular to a carbon-glass hybrid fiber reinforced composite material oxygen chamber and a preparation method thereof. Background Art

[0002] Hyperbaric oxygen therapy, as an effective medical treatment, has been widely used in clinical practice. Traditionally, hyperbaric oxygen chambers are mainly made of metal materials, such as stainless steel or other high-strength alloys. Although metal oxygen chambers have certain mechanical strength and reliability, they have some inherent disadvantages. The existing metal oxygen chambers have the following shortcomings in practical applications: 1. Due to their heavy material, metal oxygen chambers are not conducive to movement and installation, especially when they need to be frequently transferred or installed in specific places (such as hospitals, ambulances, etc.). 2. The price of metal materials is relatively high, and the processing technology is complicated, resulting in an increase in the overall manufacturing cost. 3. Although the metal material itself has good strength, it is susceptible to corrosion during long-term use, especially in humid environments or environments containing corrosive gases. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a carbon-glass hybrid fiber reinforced composite oxygen chamber and a preparation method thereof.

[0004] The present invention provides a carbon-glass hybrid fiber reinforced composite material oxygen chamber and a preparation method thereof, which adopts the following technical scheme:

[0005] A carbon-glass hybrid fiber reinforced composite oxygen chamber comprises a chamber and end covers arranged on both sides of the chamber, wherein the chamber comprises a glass fiber main structure and a carbon fiber support structure, wherein the carbon fiber support structure is arranged at the corners of the chamber, the carbon fiber support structure is embedded in the glass fiber main structure, and the carbon fiber support structure and the glass fiber main structure are stacked and staggered, screw holes are arranged on the side walls on both sides of the chamber, and the end covers are connected to the chamber through bolts and the screw holes.

[0006] Through the above technical solution, the carbon-glass hybrid fiber reinforced composite oxygen silo uses glass fiber to prepare the silo, which can reduce the weight of the silo and improve its strength. It also has good corrosion resistance and improves its portability and installation convenience. The strength of the silo is further enhanced by embedding the carbon fiber support structure into the glass fiber main structure layer and stacking and staggering it.

[0007] As a preferred embodiment of the present invention, the cabin body includes a metal ring embedded in a glass fiber main body structure, and the screw hole is arranged on the metal ring.

[0008] Through the above technical solution, the design of embedding a metal ring on the cabin body for fixing the end cover not only simplifies the assembly process, but also enhances the connection strength between the cabin body and the end cover, ensuring the safety of the connection under high pressure environment.

[0009] As a preferred embodiment of the present invention, the metal ring is a split structure, and the height of the metal ring is adjustable in the horizontal direction and the vertical direction.

[0010] Through the above technical solution, by adopting a split structure for the metal ring, the metal ring can be easily installed on the cabin during preparation, and the split and height-adjustable metal ring design makes it possible to flexibly adjust the size of the cabin according to actual needs to adapt to different application scenarios, ensure that the metal ring is tightly combined with the cabin, and improve the overall quality.

[0011] As a preferred embodiment of the present invention, a raised serrated structure is provided on both the outer wall and the inner wall of the metal ring.

[0012] Through the above technical solution, the serrated structure on the inner and outer walls of the metal ring increases the friction between the metal ring and the composite material, effectively preventing the displacement of the metal ring during use and improving the overall stability of the device.

[0013] As a preferred embodiment of the present invention, the diameter of one end of the outer circumference of the metal collar close to both sides of the cabin body in the axial direction is larger than the diameter close to the middle of the cabin body, and the transition is in an arc shape.

[0014] Through the above technical solution, the outer circumference of the metal collar is designed to have a larger diameter at one end close to the two sides of the cabin body and an arc-shaped transition, so that during the composite material winding process, the material can gradually contact the metal collar in a smooth manner to form a uniform pressure distribution. This design helps to closely combine the composite material and the metal collar, avoids material accumulation or gaps caused by sudden changes during the winding process, thereby ensuring the stable positioning of the metal collar during the entire use period and preventing the displacement of the metal collar.

[0015] As a preferred embodiment of the present invention, an annular sealing ring is provided on the contact surface between the side wall of the cabin body and the end cover.

[0016] Through the above technical solution, the annular sealing ring provided on the contact surface between the cabin and the end cover effectively enhances the sealing performance of the cabin and prevents oxygen leakage under high pressure environment.

[0017] As a preferred embodiment of the present invention, the cabin body also includes a carbon fiber layer, which is a carbon fiber main structural layer on the periphery of the fiberglass main structural layer or a carbon fiber support ring wrapped around the periphery of the fiberglass main structural layer, and a plurality of carbon fiber support rings are provided, and the plurality of carbon fiber support rings are distributed along the axial direction of the cabin body.

[0018] Through the above technical solution, a carbon fiber layer is set on the periphery of the cabin, or the structure is strengthened by multiple layers of carbon fiber support rings, which not only improves the compressive strength of the cabin, but also further reduces the overall weight of the oxygen chamber because carbon fiber is lighter than glass fiber.

[0019] The present invention also discloses a method for preparing the above-mentioned carbon-glass hybrid fiber reinforced composite material oxygen chamber, comprising the following steps:

[0020] S1. Using winding process to make the lining layer on the lining mold;

[0021] S2, impregnating glass fiber with resin, and winding it on the inner lining layer to make the FRP main structure layer. During the winding process, when the FRP main structure wound on the inner lining layer has a certain thickness, metal rings are installed on both sides of the axial direction of the FRP main structure;

[0022] S3. Continue to wrap the FRP main structure with glass fiber. After the glass fiber is wrapped 2-3 times, stick carbon fiber cloth on the four corners of the FRP main structure.

[0023] S4. After the carbon fiber cloth is pasted on all four corners of the FRP main structure, the FRP fiber is continued to be wound to make the FRP main structure;

[0024] S5. After the FRP fiber is continuously wound for 2-4 turns, the carbon fiber cloth is continuously pasted on the four corners of the FRP main structure. This process is repeated in a layered manner until the FRP main structure is wound to obtain a cabin structure.

[0025] S6, solidifying and shaping the cabin structure;

[0026] S7. Fix the prepared end cover to the cabin structure by using bolts through the mounting holes on the end cover and the fixing screw holes on the metal ring on the end surface of the cabin.

[0027] Through the above technical scheme, the FRP main structure layer is prepared by winding, and the metal ring is installed while making the FRP main structure layer, which is convenient for the subsequent installation of the end cover. In the subsequent process of winding the FRP main structure, the glass fiber winding and the carbon fiber cloth are alternately stacked, so that the carbon fiber support structure formed at the four corners of the cabin can greatly improve the strength of the entire cabin.

[0028] As a preferred embodiment of the present invention, when installing the metal collars on both sides of the axial direction of the FRP main structure in step S2, it is achieved by the following steps: the metal collar is split into two parts and moved to both sides of the axial direction of the FRP main structure, and then the two parts of the metal collar are molded together, and the lateral and longitudinal positions of the metal collar are adjusted so that the inner wall of the metal collar is close to the FRP main body, and then the metal collar is locked so that the metal collar maintains a stable shape.

[0029] Through the above technical solution, when installing the metal ring, the split method is used to facilitate the installation of the metal ring on the glass fiber main structure layer, and the locking mechanism is used to ensure that the metal ring fits tightly with the glass fiber reinforced plastic main structure, avoiding loosening of the connection part and improving the reliability and durability of the device.

[0030] As a preferred embodiment of the present invention, after the winding of the FRP main structure is completed, the step of winding a carbon fiber support ring on the FRP main structure is also included.

[0031] After the fiberglass main structure is completed, the carbon fiber support ring is wound on it, which not only enhances the tensile strength of the cabin and reduces the weight of the cabin, but also there is a gap between the carbon fiber support rings, so the carbon fiber does not completely cover the entire cabin, making the part of the cabin not covered by the carbon fiber have a certain degree of light transmittance.

[0032] In summary, the present invention includes at least one of the following beneficial technical effects:

[0033] 1. The carbon-glass hybrid fiber reinforced composite oxygen silo uses glass fiber to prepare the cabin, which can reduce the weight of the oxygen silo and improve its strength. It also has good corrosion resistance, which improves its portability and installation convenience. The strength of the cabin is further enhanced by embedding the carbon fiber support structure into the glass fiber main structure layer and stacking and staggering it.

[0034] 2. The design of embedding a metal collar on the cabin to fix the end cover not only simplifies the assembly process, but also enhances the connection strength between the cabin and the end cover, ensuring the safety of the connection under high pressure. Moreover, by adopting a split structure for the metal collar, it is easy to install the metal collar on the cabin during preparation, and the split and height-adjustable metal collar design allows the cabin size to be flexibly adjusted according to actual needs, adapting to different application scenarios, ensuring that the metal collar is tightly combined with the cabin, and improving the overall quality.

[0035] 3. The cabin structure is composited with carbon fiber, which can reduce the overall weight of the cabin and improve the strength of the cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1It is a schematic diagram of the structure of embodiment 1 of the present invention.

[0037] Figure 2 It is a schematic diagram of the end cover structure of Example 1 of the present invention.

[0038] Figure 3 It is a cross-sectional structural diagram of an embodiment of the present invention.

[0039] Figure 4 1 is a cross-sectional view of the carbon fiber support structure according to Example 1.

[0040] Figure 5 It is a schematic structural diagram of the metal sleeve ring of the present invention.

[0041] Figure 6 It is a cross-sectional structural diagram of Example 2 of the present invention.

[0042] Figure 7 It is a three-dimensional structural diagram of embodiment 3 of the present invention.

[0043] Figure 8 It is a cross-sectional structural diagram of Example 3 of the present invention.

[0044] Explanation of the reference numerals: 1. cabin; 2. end cover; 3. bolt; 4. metal ring; 5. screw hole; 6. annular sealing ring; 7. annular groove; 101. inner lining layer; 102. glass fiber main structural layer; 103. carbon fiber supporting structure; 104. carbon fiber main structural layer; 105. carbon fiber supporting ring; 201. cabin door; 401. upper left part; 402. lower left part; 403. upper right part; 404. lower right part; 405. first connecting guide rod; 406. second connecting guide rod; 407. waist-shaped hole; 408. locking hole; 409. third connecting guide rod; 410. serrated structure; 411. locking screw. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1-8 The present invention is described in further detail.

[0046] Example 1

[0047] like Figures 1 to 5As shown, this embodiment discloses a carbon-glass hybrid fiber reinforced composite oxygen chamber, comprising a chamber 1 and end covers 2 arranged on both sides of the chamber 1. The chamber 1 is a rectangular parallelepiped structure, and the end covers 2 are arranged on both sides of the axial direction of the chamber 1, and an openable chamber door 201 is arranged on one of the end covers 2. In this embodiment, the cabin 1 includes an inner lining layer 101, a glass fiber main structure layer 102 and a carbon fiber support structure 103. The carbon fiber support structure 103 is arranged at the corners of the cabin 1, and the carbon fiber support structure 103 is embedded in the glass fiber main structure layer 102. The carbon fiber support structure 103 and the glass fiber main structure layer 102 are stacked and staggered. Specifically, the carbon fiber support structure 103 is arranged at the four corners of the rectangular parallelepiped. The carbon fiber support structure 103 is made of carbon fiber cloth. When the glass fiber main structure layer 102 is wound into shape, a layer of carbon fiber cloth is pasted at the four corners every 2-4 turns of the glass fiber. In this way, the carbon fiber support structure 103 is formed. The carbon fiber support structure 103 formed at the four corners can greatly improve the strength of the entire cabin 1.

[0048] Screw holes 5 are provided on the side walls of the cabin body 1, that is, the end faces of the two sides in the length direction of the cuboid, and the end cover 2 is connected to the cabin body 1 through bolts 3 and the screw holes 5. An annular sealing ring 6 is provided on the contact surface between the side wall of the cabin body 1 and the end cover 2. In this embodiment, an annular groove is provided on the side wall of the cabin body 1, and the annular sealing ring is arranged in the annular groove. When the end cover 2 is fixed to the cabin body 1, the annular sealing ring fits with the end face of the end cover 2, thereby ensuring the sealing between the cabin body 1 and the end cover 2.

[0049] In this embodiment, the screw hole 5 is arranged on the metal ring 4 . The metal ring 4 is made of aluminum. The metal ring 4 is embedded in the glass fiber main structure layer 102 . A plurality of screw holes 5 are arranged on the end face of the metal ring 4 .

[0050] Reference Figure 5 The metal collar 4 is a split structure, and the height of the metal collar 4 in the horizontal and vertical directions is adjustable. Specifically, in this embodiment, the metal collar 4 includes 4 parts, namely, the upper left part 401, the lower left part 402, the upper right part 403, and the lower right part 404. The upper left part 401 and the lower left part 402 are connected by a first connecting guide rod 405, and the upper right part 403 and the lower right part 404 are connected by a second connecting guide rod 406. One end of the first connecting guide rod 405 is fixed to the lower left part 402, and the other end is inserted into the upper left part 401. The first connecting guide rod 405 can slide and lock in the upper left part 401. One end of the second connecting guide rod 406 is fixed to the lower right part 404, and the other end is inserted into the upper right part 403. The second connecting guide rod 406 can slide and lock in the upper right part 403.

[0051] In this embodiment, waist-shaped holes 407 are provided on the first connecting guide rod 405 and the second connecting guide rod 406, and locking holes 408 are provided on the upper left part 401 and the upper right part 403. By installing locking screws 411 in the locking holes 408, the first connecting guide rod 405 can be locked with the upper left part 401, and the second connecting guide rod 406 can be locked with the upper right part 403. Loosening the locking screws 411 can adjust the distance between the upper left part 401 and the lower left part 402, and the distance between the upper right part 403 and the lower right part 404. At the same time, the first connecting guide rod 405 can be detached from the upper left part 401, and the second connecting guide rod 406 can be detached from the upper right part 403.

[0052] The upper left part 401 and the upper right part 403, and the lower left part 402 and the lower right part 404 are connected by the third connecting guide rod 409. In this embodiment, the upper left part 401 and the lower left part 402 can slide on the third connecting guide rod 409 to adjust the distance between the upper left part 401 and the upper right part 403 and the distance between the lower left part 402 and the lower right part 404. In this embodiment, locking holes 48 are provided on the upper left part 41 and the lower left part 402. By installing locking screws 411 in the locking holes 408, the third connecting guide rod 409 can be locked with the upper left part 401, thereby locking the upper left part 401 and the upper right part 403. The third connecting guide rod 409 is locked with the lower left part 402, thereby locking the lower left part 402 and the lower right part 404.

[0053] The outer wall and the inner wall of the metal collar 4 are provided with a raised sawtooth structure 410, through which the raised sawtooth structure 410 can be used. The diameter of the outer periphery of the metal collar 4 at one end close to both sides of the cabin in the axial direction is larger than the diameter close to the middle position of the cabin, and is an arc transition.

[0054] The carbon-glass hybrid fiber reinforced composite oxygen chamber of this embodiment is prepared by the following method:

[0055] S1, manufacturing an inner lining layer 101 on an inner lining mold by using a winding process;

[0056] S2. Dip the glass fiber in resin and wind it on the inner lining layer 101 to make the FRP main structure layer 102. During the winding process, when the FRP main structure 102 wound on the inner lining layer 101 has a certain thickness, install the metal collar 4 on both sides of the axial direction of the FRP main structure. Specifically, adjust the length between the upper left part 401 and the upper right part 403, and between the lower left part 402 and the lower right part 404 of the metal collar 4 to a suitable length. At this time, the preset length between the upper left part 401 and the upper right part 403, and between the lower left part 402 and the lower right part 404 is greater than the length of the cross section of the FRP main structure 102 at this time; disconnect the upper left part 401 and the upper right part 403 from the lower left part 402 and the lower right part 404, and then disassemble the metal collar 4 into two parts, move the two parts of the metal collar 4 to both sides of the axial direction of the FRP main structure, and then sleeve the upper left part 401 onto the first connection. The upper right part 403 is sleeved on the second connecting guide rod 405, thereby the two parts of the metal collar 4 are molded together, and the distance between the upper left part 401, the lower left part 402 and the upper right part 403, the lower right part 404 is adjusted, and the distance between the upper left part, the lower left part 402 and the upper right part 403, the lower right part 404 is adjusted, and then the horizontal and vertical positions of the metal collar 4 are adjusted, so that the inner wall of the metal collar 4 is tightly attached to the FRP body, and then the locking screw 411 is locked to lock the position of the metal collar 4, so that the metal collar 4 maintains a stable shape and is tightly attached to the FRP main structure.

[0057] S3. Continue to wind the FRP main structure with glass fiber. During the winding process, the glass fiber will be wound around the outer wall of the metal sleeve 4. After the glass fiber is wound 2-3 times, carbon fiber cloth is pasted on the four corners of the FRP main structure.

[0058] S4. After the carbon fiber cloth is pasted on all four corners of the FRP main structure, the FRP fiber is continued to be wound to make the FRP main structure.

[0059] S5. After continuing to wind the FRP fiber for 2-4 turns, continue to paste carbon fiber cloth at the four corners of the FRP main structure that has been formed. Repeat this process for layered winding until the FRP main structure is wound, and the FRP main structure layer 102 is prepared to obtain the cabin 1 structure.

[0060] S6. The cabin structure is solidified and shaped. During the shaping process, annular grooves 7 are processed on the end faces of both sides of the cabin 1.

[0061] S7. Fix the prepared end cover 2 to the cabin structure. In this embodiment, the end cover 2 is prepared by an extrusion process, and an annular sealing ring is installed in the annular groove 7 on the end face of the cabin. The mounting hole on the end cover 2 and the fixing screw hole 5 on the metal ring 4 on the end face of the cabin are fixed by bolts.

[0062] Embodiment 2:

[0063] Reference Figure 6 , the rest of this embodiment is the same as that of embodiment 1, except that, in order to further reduce the weight of the oxygen bin while ensuring the strength of the oxygen bin, in this embodiment, the thickness of the glass fiber main structure layer 102 is reduced, and a carbon fiber main structure layer 104 is also wound around the periphery of the glass fiber main structure layer 102, and the carbon fiber main structure layer 104 is formed by winding carbon fiber around the glass fiber main structure layer 102. Carbon fiber has better strength and stiffness than glass fiber, and the elastic modulus (stiffness) of carbon fiber is about 5 times that of glass fiber. This means that under the same external force, the deformation of carbon fiber is smaller, the structure is more stable, and the weight is lighter. Therefore, in this embodiment, by composite carbon fiber main structure layer 104, the weight of the entire oxygen bin is made lighter while ensuring the strength and stiffness of the cabin 1.

[0064] Embodiment 3:

[0065] Reference Figure 7 and Figure 8 The rest of this embodiment is the same as that of Embodiment 1, except that in order to further reduce the weight of the oxygen bin while ensuring the strength of the oxygen bin, in this embodiment, the thickness of the glass fiber main structure layer 102 is reduced, and a plurality of carbon fiber support rings 105 are wound around the periphery of the glass fiber main structure layer 102. The carbon fiber support rings 105 are distributed along the length direction of the cabin 1, and the number of the carbon fiber support rings 105 is determined according to the length of the cabin 1. The plurality of carbon fiber support rings 105 are distributed at equal intervals.

[0066] In this embodiment, by compounding multiple carbon fiber support rings 105, the weight of the entire oxygen chamber is made lighter while ensuring the strength and rigidity of the cabin. At the same time, since there are gaps between the multiple carbon fiber support rings 105, the carbon fiber does not completely cover the entire cabin 1, so that the portion of the cabin 1 not covered by the carbon fiber has a certain degree of light transmittance.

[0067] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A carbon-glass hybrid fiber reinforced composite oxygen silo, characterized in that: The invention comprises a cabin (1) and end covers (2) arranged on both sides of the cabin (1), wherein the cabin (1) comprises a glass fiber main structure layer (102) and a carbon fiber support structure (103), wherein the carbon fiber support structure (103) is arranged at the corners of the cabin (1), the carbon fiber support structure (103) is embedded in the glass fiber main structure layer (102), and the carbon fiber support structure (103) and the glass fiber main structure layer (102) are stacked and staggered, and screw holes (5) are arranged on the side walls on both sides of the cabin (1), and the end covers (2) are connected to the cabin (1) through bolts and the screw holes (5).

2. The carbon-glass hybrid fiber reinforced composite oxygen silo according to claim 1, characterized in that: The cabin body (1) comprises a metal ring (4) embedded in a glass fiber main structural layer (102), and the screw hole (5) is arranged on the metal ring (4).

3. The carbon-glass hybrid fiber reinforced composite oxygen silo according to claim 2, characterized in that: The metal ring (4) is a split structure, and the height of the metal ring (4) is adjustable in the horizontal direction and the vertical direction.

4. The carbon-glass hybrid fiber reinforced composite oxygen silo according to claim 3, characterized in that: A protruding sawtooth structure (410) is provided on the outer wall and the inner wall of the metal ring (4).

5. The carbon-glass hybrid fiber reinforced composite oxygen silo according to claim 3, characterized in that: The diameter of the outer circumference of the metal collar (4) at one end close to both sides of the cabin body (1) in the axial direction is larger than the diameter close to the middle position of the cabin body (1), and is an arc-shaped transition.

6. The carbon-glass hybrid fiber reinforced composite material oxygen chamber according to claim 1, characterized in that: An annular sealing ring (6) is provided on the contact surface between the side wall of the cabin body (1) and the end cover (2).

7. The carbon-glass hybrid fiber reinforced composite oxygen silo according to claim 1, characterized in that: The cabin body (1) further comprises a carbon fiber layer, wherein the carbon fiber layer is a carbon fiber main structure layer (104) on the periphery of the fiberglass main structure layer (102) or a carbon fiber support ring (105) wound on the periphery of the fiberglass main structure layer (102), and a plurality of the carbon fiber support rings (105) are provided, and the plurality of carbon fiber support rings (105) are distributed along the axial direction of the cabin body (1).

8. A method for preparing the carbon-glass hybrid fiber reinforced composite oxygen silo as claimed in any one of claims 1 to 7, characterized in that: The steps include: S1, manufacturing an inner lining layer (101) on an inner lining mold by using a winding process; S2, impregnating glass fiber with resin, and winding the glass fiber on the inner lining layer (101) to produce a glass fiber reinforced plastic main structure layer (102), and during the winding process, when the glass fiber reinforced plastic main structure wound on the inner lining layer (101) has a certain thickness, installing metal rings (4) on both sides of the axial direction of the glass fiber reinforced plastic main structure; S3. Continue to wrap the FRP main structure with glass fiber. After the glass fiber is wrapped 2-3 times, stick carbon fiber cloth on the four corners of the FRP main structure. S4. After the carbon fiber cloth is pasted on all four corners of the FRP main structure, the FRP fiber is continued to be wound to make the FRP main structure; S5. After the FRP fiber is continuously wound for 2-4 turns, the carbon fiber cloth is continuously pasted on the four corners of the FRP main structure. This process is repeated in a layered manner until the FRP main structure is wound to obtain a cabin structure. S6, solidifying and shaping the cabin structure; S7. Fix the prepared end cover (2) to the cabin structure by using bolts (3) through the mounting holes on the end cover (2) and the fixing screw holes (5) on the metal ring (4) on the end surface of the cabin.

9. The method for preparing the carbon-glass hybrid fiber reinforced composite oxygen silo according to claim 8, characterized in that: When the metal collar (4) is installed on both sides of the axial direction of the FRP main structure in step S2, it is achieved by the following steps: the metal collar (4) is split into two parts and moved to both sides of the axial direction of the FRP main structure, and then the two parts of the metal collar (4) are molded together, and the transverse and longitudinal positions of the metal collar (4) are adjusted so that the inner wall of the metal collar (4) is closely attached to the FRP main structure, and then the metal collar (4) is locked so that the metal collar (4) maintains a stable shape.

10. The method for preparing the carbon-glass hybrid fiber reinforced composite oxygen chamber according to claim 8, characterized in that: After the fiberglass main structure layer (102) is wound, the method further includes winding a carbon fiber support ring (105) on the fiberglass main structure layer (102).

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