Air micro-pressure cabin

Abstract

The invention relates to the technical field of air micro-pressure cabins, and provides an air micro-pressure cabin which comprises a frame, the frame comprises a plurality of vertical rods and a plurality of transverse rods, the transverse rods and the vertical rods form a plurality of mounting gaps, and the air micro-pressure cabin further comprises a plurality of supporting modules arranged in the mounting gaps in a one-to-one correspondence mode. The vertical rods, the transverse rods and the supporting modules jointly define a micro-pressure cavity, a sealing door is arranged on one side of the frame in a sliding mode, and the sealing door is used for sealing or not sealing the micro-pressure cavity after sliding on the frame. The problems that in the prior art, a soft cabin is inconvenient to enter and exit, and the manufacturing cost of a hard cabin is high are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air micro-pressure cabins, and specifically, to an air micro-pressure cabin. Background Art

[0002] The micro-pressure cabin has the function of improving sub-health and significantly relieving altitude sickness in plateau areas. Its working principle is to pressurize the sealed space (the maximum pressures are divided into three levels: 30 kPa, 50 kPa, and 90 kPa). Commonly used is a pressure of 50 kPa and within. It is safe to use and has been widely recognized.

[0003] There are two existing structures for micro-pressure cabins: soft cabins and hard cabins, with the following characteristics:

[0004] The soft cabin is stitched with TPU material to achieve a sealing effect. It has the advantages of light weight and being foldable and portable. However, because it is a soft structure, when used in fixed application scenarios, such as for home use and in health care places, it is inconvenient to enter and exit the cabin, resulting in a poor user experience. Its pressure resistance is below 50 kPa, and it is mainly used in the portable oxygen cabin market.

[0005] The hard cabin uses materials such as carbon steel or aluminum alloy as the pressure-bearing structure, and decorative materials such as fiberglass, wood boards, and aluminum plastic boards are installed inside and outside. Different plate thicknesses, reinforcing ribs, structures, etc. are selected according to the required pressure resistance. The hard cabin is beautiful in selection, and it is convenient for users to enter and exit. It is suitable for use in fixed places such as home use and health care places. However, its metal structure results in an overweight weight, and it needs to be disassembled and assembled during transportation and installation. Some multi-story buildings do not meet the requirements for the entry and installation load-bearing, resulting in limited use range. At the same time, in order to ensure the pressure-bearing structure, the steel plates and reinforcing ribs used also increase the material cost and processing cost, making its selling price reach more than 100,000 yuan, which affects the popularization of the product. Summary of the Invention

[0006] The present invention provides an air micro-pressure cabin, which solves the problems of inconvenient entry and exit of the soft cabin and relatively high manufacturing cost of the hard cabin in the prior art.

[0007] The technical solution of the present invention is as follows:

[0008] An air micro-pressure cabin includes a frame. The frame includes a plurality of vertical rods and a plurality of horizontal rods. The plurality of horizontal rods and the plurality of vertical rods form a plurality of installation gaps. It also includes a plurality of support modules for being respectively arranged in the installation gaps one by one. The vertical rods, horizontal rods, and support modules together enclose a micro-pressure cavity. A sealing door is slidably arranged on one side of the frame. After the sealing door slides on the frame, it is used to seal or not seal the micro-pressure cavity.

[0009] As a further technical solution, the vertical rod includes a first support end and two first baffles, the horizontal rod includes a second support end and two second baffles, the second baffle has an avoidance groove, the vertical rod is used to be arranged between two horizontal rods, and the avoidance groove is used to avoid the first baffle;

[0010] An installation block is arranged on the horizontal rod at the position of the avoidance groove. After the first baffle slides into the avoidance groove, the first baffle is fixedly connected to the installation block through bolts, and two horizontal rods and two vertical rods enclose an installation gap.

[0011] As a further technical solution, the support module is made of TPU material.

[0012] As a further technical solution, the support module is hollow inside. After the support module is inflated, it is used to seal and support the installation gap. Through holes are provided on both the first support end and the second support end, first connecting pipelines are arranged at both ends of the through holes, and second connecting pipelines are arranged around the support module;

[0013] The second connecting pipeline is used to be inserted and arranged with one first connecting pipeline. The first connecting pipeline is used to connect two second connecting pipelines located on both sides of the through hole. A termination switch is also arranged on the second connecting pipeline, and the termination switch is used to control the connection or disconnection between the second connecting pipeline and the first connecting pipeline.

[0014] As a further technical solution, the termination switch includes a mounting seat arranged on the second connecting pipeline. The mounting seat has a mounting groove and a mounting hole. The mounting groove and the mounting hole are communicated, and both the mounting groove and the mounting hole are communicated with the inside of the second connecting pipeline. A termination baffle is slidably arranged in the mounting groove, and a threaded rod is rotatably arranged in the mounting hole;

[0015] One side of the threaded rod is rotatably arranged on the termination baffle. After the threaded rod rotates in the mounting hole, it is used to drive the termination baffle to slide in the mounting groove. After the termination baffle slides in the mounting groove, it is used to open or close the second connecting pipeline.

[0016] As a further technical solution, maintenance holes are provided on the first baffles, and an internal hexagonal groove is arranged on the side of the threaded rod away from the termination baffle. The maintenance holes and the internal hexagonal grooves are arranged corresponding to each other.

[0017] As a further technical solution, the sealing door has a sealing protrusion, an installation plate is arranged on the frame, the installation plate has a sealing groove, the sealing door is hinged to the installation plate through a hinge, and after the sealing door swings on the installation plate, the sealing protrusion slides into or does not slide into the sealing groove;

[0018] It further includes a clamping rod arranged on the sealing door and inside the micro-pressure cavity, a clamping seat is arranged on the mounting plate, symmetrically arranged arc-shaped plates are swingably arranged on the clamping seat, the two arc-shaped plates form a clamping gap, and the opening of the clamping gap is smaller than the diameter of the clamping rod. Elastic members are arranged on both of the two arc-shaped plates, and the other ends of the elastic members are respectively arranged at both ends of the clamping seat, and the elastic members are used to provide the force for the arc-shaped plates to clamp the clamping rod.

[0019] As a further technical solution, the sealing door is provided with a handle.

[0020] As a further technical solution, a decorative plate is arranged on the outer surface of the frame.

[0021] The working principle and beneficial effects of the present invention are as follows:

[0022] In the present invention, the frame is composed of a plurality of vertical rods and horizontal rods, and the vertical rods and horizontal rods are connected to each other to form a plurality of installation gaps. Inside these installation gaps, support modules are correspondingly arranged one by one, and the vertical rods, horizontal rods and support modules together enclose a micro-pressure cavity. A sealing door is slidably arranged on one side of the frame. After the sealing door slides on the frame, it can realize the sealing or non-sealing of the micro-pressure cavity. This micro-pressure cabin has the functions of improving sub-health and relieving altitude reaction in plateau areas.

[0023] In the actual manufacturing process, considering the advantages and disadvantages of the soft cabin and the hard cabin, the air micro-pressure cabin in this embodiment adopts a composite structure design. The vertical rods and horizontal rods of the frame not only ensure the stability of the overall structure but also reduce the weight. The support module is made of a TPU composite material with certain elasticity and strength, and the shape of the support module matches the installation gap, which can well fill the gap and play a supporting role. By setting the support module structure inside the frame, this air micro-pressure cabin not only overcomes the disadvantages of the soft cabin such as inconvenient entry and exit, limited pressure-bearing capacity, and the hard cabin such as excessive weight, high cost, and limited use range, but also retains their respective advantages, so that it can be well applied in the portable oxygen cabin market and fixed places such as home and health care places, with high cost performance and broad market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0025] Figure 1 is the first perspective axonometric structure schematic diagram of the present invention;

[0026] Figure 2 is the first partial perspective structure schematic diagram of the present invention;

[0027] Figure 3 is the second partial perspective structure schematic diagram of the present invention;

[0028] Figure 4 Schematic diagram of the support module structure of the present invention;

[0029] Figure 5 is Figure 4 Partial enlarged structure diagram at position A of;

[0030] Figure 6 Second perspective axonometric structure diagram of the present invention;

[0031] Figure 7 Structure diagram at the sealed door of the present invention;

[0032] Figure 8 is Figure 7 Partial enlarged structure diagram at position B of.

[0033] In the figure: 10, frame, 11, vertical rod, 12, horizontal rod, 13, installation gap, 20, support module, 30, sealed door, 14, micro-pressure cavity, 111, first support end, 112, first baffle, 121, second support end, 122, second baffle, 123, avoidance groove, 124, mounting block, 15, through hole, 16, first connecting pipe, 21, second connecting pipe, 22, termination switch, 221, mounting seat, 222, mounting groove, 223, mounting hole, 224, termination baffle, 225, threaded rod, 113, inspection hole, 226, internal hexagonal groove, 31, sealing protrusion, 32, mounting plate, 33, sealing groove, 34, handle, 35, clamping rod, 36, clamping seat, 37, arc plate, 38, clamping gap, 39, elastic member, 40, decorative plate. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of the present invention.

[0035] Embodiment

[0036] As Figures 1-8 shown, an air micro-pressure cabin includes a frame 10, the frame 10 includes a plurality of vertical rods 11 and a plurality of horizontal rods 12, the plurality of horizontal rods 12 and the plurality of vertical rods 11 form a plurality of installation gaps 13, and further includes a plurality of support modules 20 for being respectively arranged in the installation gaps 13 one by one. The vertical rods 11, the horizontal rods 12 and the support modules 20 together enclose a micro-pressure cavity 14. A sealed door 30 is slidably arranged on one side of the frame 10. After the sealed door 30 slides on the frame 10, it is used to seal or not seal the micro-pressure cavity 14.

[0037] In this embodiment, the frame 10 is composed of a plurality of vertical rods 11 and horizontal rods 12. The vertical rods 11 and the horizontal rods 12 are connected to each other to form a plurality of installation gaps 13. Inside these installation gaps 13, support modules 20 are correspondingly arranged one by one. The vertical rods 11, the horizontal rods 12 and the support modules 20 together enclose a micro-pressure cavity 14. A sealing door 30 is slidably arranged on one side of the frame 10. After the sealing door 30 slides on the frame 10, the micro-pressure cavity 14 can be sealed or unsealed. This micro-pressure cabin has the functions of improving sub-health and relieving altitude sickness in plateau areas.

[0038] In the actual manufacturing process, considering the advantages and disadvantages of the soft cabin and the hard cabin, the air micro-pressure cabin in this embodiment adopts a composite structure design. The vertical rods 11 and the horizontal rods 12 of the frame 10 not only ensure the stability of the overall structure but also reduce the weight. The support module 20 is made of a composite material with a certain elasticity and strength, and its shape matches the installation gap 13, which can well fill the gap and play a supporting role. Through this composite structure design, this air micro-pressure cabin overcomes the disadvantages of the soft cabin such as inconvenient access, limited pressure-bearing capacity, and the hard cabin such as heavy weight, high cost, and limited application range, while retaining their respective advantages, making it well applicable in the portable oxygen cabin market and fixed places such as home and health care places, with high cost performance and broad market prospects.

[0039] As a further technical solution, the vertical rod 11 includes a first support end 111 and two first baffles 112, the horizontal rod 12 includes a second support end 121 and two second baffles 122, and the second baffle 122 has an avoidance groove 123. The vertical rod 11 is used to be arranged between two horizontal rods 12, and the avoidance groove 123 is used to avoid the first baffle 112;

[0040] An installation block 124 is arranged on the horizontal rod 12 at the position of the avoidance groove 123. After the first baffle 112 slides into the avoidance groove 123, the first baffle 112 is fixedly connected to the installation block 124 through bolts, and two horizontal rods 12 and two vertical rods 11 enclose an installation gap 13.

[0041] In this embodiment, the frame 10 is composed of a number of vertical rods 11 and horizontal rods 12. The vertical rod 11 includes a first support end 111 and two first baffles 112. The horizontal rod 12 includes a second support end 121 and two second baffles 122. An avoidance groove 123 is provided on the second baffle 122. The vertical rod 11 is arranged between two horizontal rods 12. The avoidance groove 123 is used to avoid the first baffle 112. An installation block 124 is arranged on the horizontal rod 12 at the position of the avoidance groove 123. After the first baffle 112 slides into the avoidance groove 123, it is fixedly connected to the installation block 124 through bolts. Two horizontal rods 12 and two vertical rods 11 enclose an installation gap 13. In these installation gaps 13, support modules 20 are arranged in one-to-one correspondence. The vertical rod 11, the horizontal rod 12 and the support module 20 together enclose a micro-pressure cavity 14. A sealing door 30 is slidably arranged on one side of the frame 10. After the sealing door 30 slides on the frame 10, it can seal or unseal the micro-pressure cavity 14. This structural design can effectively improve the sealing performance of the micro-pressure cabin through the cooperation of the vertical rod 11 and the horizontal rod 12 and the setting of the first baffle 112 and the avoidance groove 123, while ensuring the stability and reliability of the overall structure.

[0042] As a further technical solution, the support module 20 is made of TPU material.

[0043] In this embodiment, in the installation gap 13, support modules 20 are arranged in one-to-one correspondence. The support module 20 is made of TPU material. The TPU material has high elasticity, wear resistance and good sealing performance, and can effectively improve the sealing performance and structural stability of the micro-pressure cabin. In addition, the TPU material also has a certain flexibility and can better adapt to pressure changes during the pressurization process of the micro-pressure cabin while maintaining the integrity of the structure.

[0044] As a further technical solution, the support module 20 is hollow inside. After the support module 20 is inflated, it is used to seal and support the installation gap 13. Through holes 15 are provided on both the first support end 111 and the second support end 121. First connecting pipelines 16 are arranged at both ends of the through holes 15. Second connecting pipelines 21 are arranged around the support module 20;

[0045] The second connecting pipeline 21 is used to be inserted and arranged with a first connecting pipeline 16. The first connecting pipeline 16 is used to connect two second connecting pipelines 21 located on both sides of the through hole 15. A termination switch 22 is also arranged on the second connecting pipeline 21. The termination switch 22 is used to control the connection or disconnection of the second connecting pipeline 21 and the first connecting pipeline 16.

[0046] In this embodiment, the support module 20 is made of TPU material and has a hollow structure inside. During the installation process, by inflating the inside of the support module 20, its volume expands, facilitating its accurate installation into the installation gap 13. The inflated support module 20 can better fit the inner surfaces of the vertical rod 11 and the cross rod 12, thereby achieving a good sealing effect and ensuring that the micro-pressure cabin can maintain a stable internal pressure during use. Through holes 15 are provided on both the first support end 111 and the second support end 121. First connection pipelines 16 are provided at both ends of the through hole 15. Second connection pipelines 21 are provided around the support module 20. The second connection pipeline 21 is used for plugging and setting with a first connection pipeline 16. The first connection pipeline 16 is used for connecting two second connection pipelines 21 located on both sides of the through hole 15, thereby realizing rapid inflation between adjacent support modules 20 and improving the installation efficiency. A termination switch 22 is also provided on the second connection pipeline 21. The termination switch 22 is used to control the connection or disconnection between the second connection pipeline 21 and the first connection pipeline 16. When one of the support modules 20 is damaged and needs to be replaced, the corresponding termination switch 22 can be closed to cut off the gas path connection between this module and adjacent modules, so that the damaged module can be replaced individually without discharging all the gas, greatly improving the convenience and efficiency of maintenance.

[0047] As a further technical solution, the termination switch 22 includes a mounting seat 221 provided on the second connection pipeline 21. The mounting seat 221 has a mounting groove 222 and a mounting hole 223. The mounting groove 222 and the mounting hole 223 are communicated, and both the mounting groove 222 and the mounting hole 223 are communicated with the inside of the second connection pipeline 21. A termination baffle 224 is slidably arranged in the mounting groove 222, and a threaded rod 225 is rotatably arranged in the mounting hole 223 by thread;

[0048] One side of the threaded rod 225 is rotatably arranged on the termination baffle 224. After the threaded rod 225 rotates in the mounting hole 223, it is used to drive the termination baffle 224 to slide in the mounting groove 222. After the termination baffle 224 slides in the mounting groove 222, it is used to open or close the second connection pipeline 21.

[0049] In this embodiment, the termination switch 22 includes a mounting base 221 disposed on the second connecting pipeline 21. The mounting base 221 has a mounting groove 222 and a mounting hole 223. The mounting groove 222 and the mounting hole 223 communicate with each other, and both the mounting groove 222 and the mounting hole 223 communicate with the interior of the second connecting pipeline 21. A termination baffle 224 is slidably disposed in the mounting groove 222, and a threaded rod 225 is rotatably disposed in the mounting hole 223 by means of threads. One side of the threaded rod 225 is rotatably disposed on the termination baffle 224. After the threaded rod 225 rotates in the mounting hole 223, it is used to drive the termination baffle 224 to slide in the mounting groove 222. After the termination baffle 224 slides in the mounting groove 222, it is used to open or close the second connecting pipeline 21. This solution improves the installation efficiency and sealing performance of the micro-pressure chamber, and also facilitates the maintenance and replacement of the damaged support module 20, greatly improving the convenience and economy of use of the micro-pressure chamber.

[0050] As a further technical solution, maintenance holes 113 are provided on the first baffles 112, and an internal hexagonal groove 226 is provided on the side of the threaded rod 225 away from the termination baffle 224. The maintenance holes 113 and the internal hexagonal groove 226 are arranged correspondingly.

[0051] In this embodiment, maintenance holes 113 are provided on the first baffles 112, and an internal hexagonal groove 226 is provided on the side of the threaded rod 225 away from the termination baffle 224. The maintenance holes 113 and the internal hexagonal groove 226 are arranged correspondingly. This design facilitates the operation of the threaded rod 225 directly with an internal hexagonal wrench through the maintenance holes 113 when maintenance or adjustment of the termination switch 22 is required. The design of the internal hexagonal groove 226 can effectively prevent the wrench from slipping, improving the stability and safety of the operation. It also improves the installation efficiency and sealing performance of the micro-pressure chamber, and also facilitates the maintenance and replacement of the damaged support module 20, greatly improving the convenience and economy of use of the micro-pressure chamber.

[0052] As a further technical solution, the sealing door 30 has a sealing protrusion 31. An installation plate 32 is provided on the frame 10. The installation plate 32 has a sealing groove 33. The sealing door 30 is hinged to the installation plate 32 by a hinge. After the sealing door 30 swings on the installation plate 32, the sealing protrusion 31 slides into or does not slide into the sealing groove 33;

[0053] It further includes a clamping rod 35 disposed on the sealing door 30 inside the micro-pressure cavity 14. A clamping seat 36 is provided on the installation plate 32. Symmetrically arranged arc-shaped plates 37 are swingably disposed on the clamping seat 36. A clamping gap 38 is formed between the two arc-shaped plates 37, and the opening of the clamping gap 38 is smaller than the diameter of the clamping rod 35. Elastic members 39 are provided on both the two arc-shaped plates 37, and the other ends of the elastic members 39 are respectively disposed at both ends of the clamping seat 36. The elastic members 39 are used to provide a force for the arc-shaped plates 37 to clamp the clamping rod 35.

[0054] In this embodiment, a sealing groove 33 and a clamping seat 36 are provided on the mounting plate 32. The sealing groove 33 is used to cooperate with the sealing protrusion 31 on the sealing door 30 to achieve the sealing function, while the clamping seat 36 is used to fix the clamping structure. The sealing door 30 is hinged to the mounting plate 32 through a stainless steel hinge, and the installation position of the hinge is carefully designed to ensure that the sealing door 30 can swing smoothly. A rubber sealing protrusion 31 is provided on the sealing door 30. When the sealing door 30 is closed, the sealing protrusion 31 can slide tightly into the sealing groove 33, effectively preventing gas or liquid leakage. In addition, a clamping rod 35 is provided on the sealing door 30. The clamping rod 35 is located inside the micro-pressure cavity 14 and is used in cooperation with the clamping seat 36 on the mounting plate 32. Two symmetric arc-shaped plates 37 are provided on the clamping seat 36. The arc-shaped plates 37 swing through a rotating shaft and are provided with elastic force by a spring. When the clamping rod 35 enters the clamping gap 38 formed by the arc-shaped plates 37, the elastic force of the spring causes the arc-shaped plates 37 to firmly clamp the clamping rod 35, further fixing the position of the sealing door 30 and ensuring the sealing performance and stability of the device during use.

[0055] As a further technical solution, a handle 34 is provided on the sealing door 30.

[0056] In this embodiment, a handle 34 is provided on the sealing door, which is convenient for users to easily grasp and apply force to open and close the sealing door.

[0057] As a further technical solution, a decorative plate 40 is provided on the outer surface of the frame 10.

[0058] This embodiment provides an air micro-pressure chamber, and a decorative plate 40 is provided on the outer surface of its frame 10. The decorative plate 40 is made of a lightweight and beautiful material, such as aluminum alloy or composite material, to ensure that the overall appearance of the micro-pressure chamber is improved without adding too much weight. The decorative plate 40 is fixed to the outer surface of the frame 10 through screws or adhesives, covering structures such as the vertical rods 11, horizontal rods 12 and connecting components of the frame 10, making the appearance of the micro-pressure chamber more tidy and beautiful, and at the same time can also play a certain protective role to prevent the frame 10 from being eroded or damaged by the external environment.

[0059] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air micro-pressure chamber, comprising a frame (10), characterized in that, The frame (10) includes a plurality of vertical rods (11) and a plurality of horizontal rods (12). The plurality of horizontal rods (12) and the plurality of vertical rods (11) form a plurality of installation gaps (13). It further includes a plurality of support modules (20) that are respectively arranged in the installation gaps (13) in a one-to-one correspondence. The vertical rods (11), the horizontal rods (12), and the support modules (20) jointly enclose a micro-pressure cavity (14). A sealing door (30) is slidably arranged on one side of the frame (10). After the sealing door (30) slides on the frame (10), it is used to seal or not seal the micro-pressure cavity (14).

2. The air micro-pressure chamber according to claim 1, wherein The vertical rod (11) includes a first support end (111) and two first baffles (112). The horizontal rod (12) includes a second support end (121) and two second baffles (122). The second baffle (122) has an avoidance groove (123). The vertical rod (11) is used to be arranged between the two horizontal rods (12), and the avoidance groove (123) is used to avoid the first baffle (112). An installation block (124) is arranged on the horizontal rod (12) at the position of the avoidance groove (123). After the first baffle (112) slides into the avoidance groove (123), the first baffle (112) is fixedly connected to the installation block (124) through bolts. The two horizontal rods (12) and the two vertical rods (11) enclose an installation gap (13).

3. An air micro-pressure cabin according to claim 1, characterized in that, The support module (20) is made of TPU material.

4. An air micro-pressure chamber according to claim 2, characterized in that, The support module (20) is hollow inside. After the support module (20) is inflated, it is used to seal and support the installation gap (13). Through holes (15) are provided on both the first support end (111) and the second support end (121). First connecting pipes (16) are arranged at both ends of the through holes (15). Second connecting pipes (21) are arranged around the support module (20). The second connecting pipe (21) is used to be inserted and arranged with one of the first connecting pipes (16). The first connecting pipe (16) is used to connect two second connecting pipes (21) located on both sides of the through hole (15). A termination switch (22) is further arranged on the second connecting pipe (21). The termination switch (22) is used to control the connection or disconnection between the second connecting pipe (21) and the first connecting pipe (16).

5. The air micro-pressure cabin according to claim 4, characterized in that, The termination switch (22) includes a mounting seat (221) arranged on the second connecting pipe (21). The mounting seat (221) has a mounting groove (222) and a mounting hole (223). The mounting groove (222) and the mounting hole (223) are communicated, and both the mounting groove (222) and the mounting hole (223) are communicated with the inside of the second connecting pipe (21). A termination baffle (224) is slidably arranged in the mounting groove (222), and a threaded rod (225) is rotatably arranged in the mounting hole (223). One side of the threaded rod (225) is rotatably arranged on the termination baffle (224). After the threaded rod (225) rotates in the mounting hole (223), it is used to drive the termination baffle (224) to slide in the mounting groove (222). After the termination baffle (224) slides in the mounting groove (222), it is used to open or close the second connecting pipeline (21).

6. The air micro-pressure cabin according to claim 5, characterized in that, Maintenance holes (113) are provided on the first baffle (112). An internal hexagonal groove (226) is provided on the side of the threaded rod (225) away from the termination baffle (224). The maintenance holes (113) and the internal hexagonal groove (226) are arranged corresponding to each other.

7. The air micro-pressure chamber according to claim 1, wherein The sealing door (30) has a sealing protrusion (31). An installation plate (32) is provided on the frame (10). The installation plate (32) has a sealing groove (33). The sealing door (30) is hinged to the installation plate (32) through a hinge. After the sealing door swings on the installation plate (32), the sealing protrusion (31) slides into or does not slide into the sealing groove (33). It further includes a clamping rod (35) arranged on the sealing door (30) inside the micro-pressure cavity (14). A clamping seat (36) is provided on the installation plate (32). Symmetrically arranged arc-shaped plates (37) are swingably arranged on the clamping seat (36). The two arc-shaped plates (37) form a clamping gap (38). The opening of the clamping gap (38) is smaller than the diameter of the clamping rod (35). Elastic members (39) are provided on both of the two arc-shaped plates (37). The other ends of the elastic members (39) are respectively arranged at both ends of the clamping seat (36). The elastic members (39) are used to provide the force for the arc-shaped plates (37) to clamp the clamping rod (35).

8. An air micro-pressure chamber according to claim 1, characterized in that, The sealing door (30) has a handle (34).

9. The air micro-pressure cabin according to claim 1, characterized in that, A decorative plate (40) is provided on the outer surface of the frame (10).

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