Segmented pressurized self-tight sealing structure, pressurized oxygen service and micro-pressure oxygen cabin

Abstract

The application discloses a segmented pressurized self-tight sealing structure, a pressurized oxygen service and a micro-pressure oxygen cabin, wherein the segmented pressurized self-tight sealing structure comprises pressure-bearing sleeves and a connecting ring, the connecting ring is in a waist-drum type, both ends of the connecting ring are connected with the pressure-bearing sleeves, at least one pressure-bearing sleeve is detachably connected with the connecting ring, one end of the at least one pressure-bearing sleeve close to the connecting ring is a transition section, the transition section is in a trumpet mouth shape, the transition section can be inserted into the connecting ring, and a sealing elastic ring is arranged on the outer periphery of the transition section and fixed. In the application, when in use, the transition section of the pressure-bearing sleeve is inserted into the connecting ring, then the pressure-bearing sleeve is pressurized, the air pressure in the pressure-bearing sleeve is increased, then the two pressure-bearing sleeves are away from each other, the sealing elastic ring can be tightly attached to the inner wall of the connecting ring, and the outer side of the transition section of the pressure-bearing sleeve can also be attached to the inner wall of the connecting ring, so that the self-sealing effect is realized, the sealing structure is more convenient to operate, the structure is simple, and the cost is low.

Description

Technical Field

[0001] This invention relates to the field of internal pressure self-sealing structure technology, and in particular to a segmented pressurized self-tightening sealing structure, a pressurized oxygen suit, and a micro-pressure oxygen chamber. Background Technology

[0002] Currently, internal pressure bearing bodies are available in various forms, including integrated types such as compressed gas tanks, and segmented types, such as two or more sections of the pressure bearing body that can be detachably connected. The detachable connection methods include segmented bolt connection, segmented external snap ring connection, and zipper connection.

[0003] However, there is currently no simple and convenient pressurized self-tightening sealing structure suitable for operation in internal pressure-bearing bodies. Summary of the Invention

[0004] Based on this, the primary objective of the present invention is to provide a segmented pressurized self-tightening sealing structure, which can achieve self-tightening sealing by pressurizing the interior, and is easy to operate.

[0005] Another object of the present invention is to provide a pressurized oxygen suit employing the above-described segmented pressurized self-tightening sealing structure.

[0006] Another object of the present invention is to provide a micro-pressure oxygen chamber employing the above-described segmented pressurized self-tightening sealing structure.

[0007] A segmented pressurized self-tightening sealing structure includes a pressure-bearing sleeve and a connecting ring. The connecting ring is drum-shaped, and pressure-bearing sleeves are connected to both ends of the connecting ring. At least one pressure-bearing sleeve is detachably connected to the connecting ring. The end of the at least one pressure-bearing sleeve near the connecting ring is a transition section. The transition section is funnel-shaped and can extend into the connecting ring. A sealing spring ring is fixedly fitted around the outer periphery of the transition section so that after being pressurized and expanded in the pressure-bearing sleeve, the sealing spring ring tightly adheres to the inner wall of the connecting ring.

[0008] In this invention, during use, the transition section of the pressure-bearing sleeve is inserted into the connecting ring, and then the pressure-bearing sleeve is pressurized. The air pressure inside the pressure-bearing sleeve increases, causing the two pressure-bearing sleeves to move away from each other, so that the sealing spring ring can fit tightly against the inner wall of the connecting ring, and the outer side of the transition section of the pressure-bearing sleeve can also fit against the inner wall of the connecting ring, thereby achieving a self-sealing effect. This sealing structure is easier to operate, has a simple structure, and is less expensive.

[0009] Preferably, the connecting ring is made of a rigid material.

[0010] Preferably, one of the pressure-bearing sleeves is detachably connected to the connecting ring, and the other pressure-bearing sleeve is integrally formed and fixed with the connecting ring.

[0011] Preferably, the two pressure-bearing sleeves are detachably connected to the two ends of the connecting ring.

[0012] The present invention also relates to a pressurized oxygen suit, including the segmented pressurized self-tightening sealing structure, wherein one of the pressure-bearing sleeves is in the shape of an upper garment and the other pressure-bearing sleeve is in the shape of a lower garment, and the pressure-bearing sleeve in the shape of an upper garment is provided with a comprehensive pipe socket.

[0013] Preferably, the inner side of the connecting ring is provided with two straps for hanging on the user's shoulders.

[0014] Preferably, the pressure-bearing sleeve, which is shaped like a top, is equipped with a multi-stage pressure switching valve and a safety valve.

[0015] This invention also relates to a micro-pressure oxygen chamber, comprising the aforementioned segmented pressurized self-tightening sealing structure, an upper shell, a lower shell, a refrigeration device, a pressurizing device, and a control module. The two pressure-bearing sleeves are correspondingly disposed within the upper shell and the lower shell. The pressure-bearing sleeve located within the upper shell has an oxygen pipe interface for communication with an oxygen generator, and the pressure-bearing sleeve located within the lower shell has a compressed air interface. The compressed air interface is connected to the refrigeration device and the pressurizing device in sequence via air pipes. Both the refrigeration device and the pressurizing device are electrically connected to the control module.

[0016] Preferably, the connecting ring is provided with a multi-stage pressure switching valve, and the pressure-bearing sleeve located inside the upper housing is provided with a safety valve.

[0017] Preferably, the connecting ring is further provided with a time controller, which is electrically connected to the control module.

[0018] Compared with existing technologies, the components of this application are simpler, the cost is lower, the operation is easier, and it can automatically seal during the pressurization process, making it more practical.

[0019] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is an exploded view of a segmented pressurized self-tightening sealing structure according to one embodiment of the present invention; Figure 2 This is an assembly schematic diagram of a segmented pressurized self-tightening sealing structure according to one embodiment of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is an exploded view of a segmented pressurized self-tightening sealing structure according to another embodiment of the present invention; Figure 5 This is an assembly schematic diagram of a segmented pressurized self-tightening sealing structure according to another embodiment of the present invention; Figure 6 This is a schematic diagram of the pressurized oxygen suit in this invention; Figure 7 This is a schematic diagram of the micro-pressure oxygen chamber in this invention.

[0021] Reference numerals: 1. Pressure bearing sleeve; 2. Connecting ring; 3. Transition section; 4. Sealing spring ring; 5. Integrated pipe socket; 6. Multi-stage pressure conversion valve; 7. Safety valve; 8. Upper shell; 9. Lower shell; 10. Refrigeration unit; 11. Pressurization unit; 12. Oxygen pipe interface; 13. Compressed air interface; 14. Time controller. Detailed Implementation

[0022] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage. Consequently, these or other directional terms should not be interpreted as restrictive.

[0023] The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of embodiments consistent with some aspects of this disclosure.

[0024] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used herein are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0025] like Figures 1 to 5 As shown, the present invention relates to a segmented pressurized self-tightening sealing structure, including a pressure-bearing sleeve 1 and a connecting ring 2. The connecting ring 2 is drum-shaped, and both ends of the connecting ring 2 are connected to pressure-bearing sleeves 1. At least one pressure-bearing sleeve 1 is detachably connected to the connecting ring 2. The end of at least one pressure-bearing sleeve 1 near the connecting ring 2 is a transition section 3. The transition section 3 is funnel-shaped and can extend into the connecting ring 2. A sealing spring ring 4 is fixedly fitted around the outer periphery of the transition section 3 so that after the pressure-bearing sleeve 1 is pressurized and expanded, the sealing spring ring 4 is tightly attached to the inner wall of the connecting ring 2.

[0026] In this invention, during use, the transition section 3 of the pressure-bearing sleeve 1 is inserted into the connecting ring 2, and then the pressure-bearing sleeve 1 is pressurized. The air pressure inside the pressure-bearing sleeve 1 increases, and the two pressure-bearing sleeves 1 move away from each other, so that the sealing spring ring 4 can fit tightly against the inner wall of the connecting ring 2, and the outer side of the transition section 3 of the pressure-bearing sleeve 1 can also fit against the inner wall of the connecting ring 2, thereby achieving a self-sealing effect. This sealing structure is easier to operate, has a simple structure, and is less expensive.

[0027] In this embodiment, the connecting ring 2 is made of a hard material, specifically a metal material, to have a long service life.

[0028] In this embodiment, the sealing ring 4 is made of a soft strip with high elasticity and high hardness, specifically it can be made of glass fiber or a metal with high elasticity.

[0029] like Figures 1 to 3 As shown, in one embodiment, one of the pressure-bearing sleeves 1 and the connecting ring 2 are detachably connected, while the other pressure-bearing sleeve 1 and the connecting ring 2 are integrally formed and fixed. That is, only one pressure-bearing sleeve 1 can be separated from the connecting ring 2.

[0030] like Figure 4 and Figure 5 As shown, in another embodiment, the two pressure-bearing sleeves 1 are detachably connected to the two ends of the connecting ring 2, that is, both pressure-bearing sleeves 1 can be separated from the connecting ring 2.

[0031] like Figure 6 As shown, the present invention also relates to a pressurized oxygen suit, including the segmented pressurized self-tightening sealing structure, wherein one of the pressure-bearing sleeves 1 is in the shape of an upper garment and the other pressure-bearing sleeve 1 is in the shape of a lower garment. The upper-garment-shaped pressure-bearing sleeve 1 is provided with a comprehensive pipe inlet 5, which is used to connect to an oxygen generator or a pressurizing device to pressurize and inject oxygen into the pressurized oxygen suit.

[0032] In this embodiment, the inner side of the connecting ring 2 is provided with two straps for hanging on the user's shoulders, so that it can be better worn by the user.

[0033] In this embodiment, the pressure-bearing sleeve 1, which is shaped like a top, is equipped with a multi-position pressure conversion valve 6 and a safety valve 7. The multi-position pressure conversion valve 6 is used to connect to the exhaust pipe. When the pressure inside the pressurized oxygen suit exceeds the set pressure, it can automatically release air to maintain a stable pressure inside the pressurized oxygen suit and ensure normal ventilation. The multi-position pressure conversion valve 6 is used to select the pressure level, with five positions: 0 (pressure relief), 1.1, 1.2, 1.3, and 1.4 times atmospheric pressure. The corresponding pressure is selected by rotating the handle. The 0-position pressure relief valve is used to release the pressure inside the pressurized oxygen suit when use is stopped. The safety valve 7 on the pressurized oxygen suit is used to automatically release pressure when it is too high to ensure the user's safety.

[0034] like Figure 7As shown, the present invention also relates to a micro-pressure oxygen chamber, including the segmented pressurized self-tightening sealing structure, an upper shell 8, a lower shell 9, a refrigeration device 10, a pressurizing device 11, and a control module. The two pressure-bearing sleeves 1 are respectively disposed in the upper shell 8 and the lower shell 9. An oxygen pipe interface 12 for communicating with an oxygen generator is opened on the pressure-bearing sleeve 1 in the upper shell 8, and a compressed air interface 13 is opened on the pressure-bearing sleeve 1 in the lower shell 9. The compressed air interface 13 is connected to the refrigeration device 10 and the pressurizing device 11 in sequence through an air pipe. Both the refrigeration device 10 and the pressurizing device 11 are electrically connected to the control module.

[0035] In the micro-pressure oxygen chamber of the present invention, compressed cold air can be introduced into the pressure-bearing sleeve 1 through the pressurization device 11 and the cooling device 10, and at the same time, it can be connected to the oxygen generator through the oxygen pipe interface 12 to inject oxygen.

[0036] In this embodiment, the connecting ring 2 is equipped with a multi-stage pressure switching valve 6, and the pressure-bearing sleeve 1 located inside the upper housing 8 is equipped with a safety valve 7. The multi-stage pressure switching valve 6 is connected to an exhaust pipe. When the pressure inside the pressure-bearing sleeve 1 exceeds the set pressure, it automatically exhausts pressure to maintain the pressure inside the pressure-bearing sleeve 1 and ensure normal ventilation. The multi-stage pressure switching valve 6 is used to select the pressure level and release pressure. There are four levels: 0 (pressure release position), 1.1, 1.2, 1.3, and 1.4 times the atmospheric pressure. The corresponding pressure is selected by rotating the handle. Rotating to the 0 position is the pressure release state, which is used to release the pressure inside the pressure-bearing sleeve 1 when the device is not in use. The safety valve 7 on the pressure-bearing sleeve 1 is used to prevent the device from automatically releasing pressure when the ventilation pipeline fails and the pressure becomes too high, so as to ensure the safety of the user.

[0037] In this embodiment, the connecting ring 2 is also provided with a time controller 14, which is electrically connected to the control module, so that the time for each use can be set. When the set time is reached, the device will automatically depressurize and prompt a signal to stop using.

[0038] In summary, compared with the prior art, the composition of this application is simpler, the cost is lower, the operation is easier, and it can automatically seal during the pressurization process, making it more practical.

[0039] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A segmented pressurized self-tightening sealing structure, characterized in that: The device includes a pressure-bearing sleeve and a connecting ring. The connecting ring is drum-shaped, and pressure-bearing sleeves are connected to both ends of the connecting ring. At least one pressure-bearing sleeve is detachably connected to the connecting ring. The end of the at least one pressure-bearing sleeve near the connecting ring is a transition section. The transition section is funnel-shaped and can extend into the connecting ring. A sealing spring ring is fixedly fitted around the outer periphery of the transition section so that after being pressurized and expanded in the pressure-bearing sleeve, the sealing spring ring will tightly adhere to the inner wall of the connecting ring. The connecting ring is made of a rigid material.

2. The segmented pressurized self-tightening sealing structure according to claim 1, characterized in that: One type of pressure-bearing sleeve is detachably connected to the connecting ring, while the other type of pressure-bearing sleeve is integrally formed and fixed to the connecting ring.

3. The segmented pressurized self-tightening sealing structure according to claim 1, characterized in that: The two pressure-bearing sleeves are detachably connected to both ends of the connecting ring.

4. A pressurized oxygen suit, characterized in that: The segmented pressurized self-tightening sealing structure according to any one of claims 1-3 is wherein one of the pressure-bearing sleeves is in the shape of an upper garment and the other of the pressure-bearing sleeves is in the shape of a lower garment, and the pressure-bearing sleeve in the shape of an upper garment is provided with a comprehensive pipe socket.

5. The pressurized oxygen suit according to claim 4, characterized in that: The inner side of the connecting ring is provided with two hanging straps for hanging on the user's shoulders.

6. The pressurized oxygen suit according to claim 4, characterized in that: The pressure-bearing sleeve, which is shaped like a top, is equipped with a multi-stage pressure switching valve and a safety valve.

7. A micro-pressure oxygen chamber, characterized in that: The device includes the segmented pressurized self-tightening sealing structure as described in any one of claims 1-3, an upper shell, a lower shell, a refrigeration device, a pressurizing device, and a control module. The two pressure-bearing sleeves are correspondingly disposed inside the upper shell and the lower shell. An oxygen pipe interface for communication with an oxygen generator is provided on the pressure-bearing sleeve located in the upper shell, and a compressed air interface is provided on the pressure-bearing sleeve located in the lower shell. The compressed air interface is connected to the refrigeration device and the pressurizing device in sequence through an air pipe. Both the refrigeration device and the pressurizing device are electrically connected to the control module.

8. The micro-pressure oxygen chamber according to claim 7, characterized in that: The connecting ring is equipped with a multi-stage pressure switching valve, and the pressure-bearing sleeve located inside the upper housing is equipped with a safety valve.

9. The micro-pressure oxygen chamber according to claim 7, characterized in that: The connecting ring is also equipped with a time controller, which is electrically connected to the control module.

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