Micro-pressure hard body oxygen cabin door automatic opening mechanism

Abstract

The application relates to a micro-pressure hard-body oxygen cabin door automatic opening mechanism, belonging to the technical field of micro-pressure hard-body oxygen cabins, which comprises a cabin door installed in a cabin body, the cabin door is hinged in the entrance of the cabin body, the hinging axis of the cabin door is perpendicular to the ground, the cabin door rotates towards the inside of the cabin body to open the entrance of the cabin body, and the mechanism further comprises a magnetic lock lock body, a magnetic lock suction plate and a sealing strip, the magnetic lock lock body is fixedly arranged in the cabin body, the magnetic lock suction plate is fixedly arranged on the cabin door, the magnetic lock lock body is electrified to fix and adsorb the magnetic lock suction plate, and the entrance of the cabin body is closed, the sealing strip is annular and fixedly arranged on the cabin body, and the cabin door is pressed on the sealing strip when the entrance of the cabin body is closed. The application has the effect of facilitating the opening and closing of the cabin door.

Description

Technical Field

[0001] This application relates to the field of micro-pressure rigid oxygen chamber technology, and in particular to an automatic opening mechanism for the door of a micro-pressure rigid oxygen chamber. Background Technology

[0002] The micro-pressure soft oxygen chamber is designed for health and wellness purposes. It consists of a high-strength medical-grade TPU nanocomposite fiber chamber and pressurization, oxygen generation, and dehumidification modules that can be freely combined according to customer functional requirements. The pressurization and oxygen generation modules continuously supply fresh air and high-concentration oxygen into the chamber, maintaining a stable, oxygen-rich environment at no more than 1.3 atmospheres. In this environment, due to the increased pressure, a large amount of oxygen dissolves in the blood, significantly increasing the body's blood oxygen capacity, improving blood oxygen partial pressure and diffusion capacity, and increasing the effective radius of oxygen absorption. Combined with a rapid increase in oxygen saturation and a continuous increase in dissolved oxygen, this opens up effective channels for the body to absorb oxygen at a high level. A large number of oxygen molecules enter body fluids through the respiratory tract and skin, thereby increasing the dissolved oxygen content in the body by more than five times, thus achieving health benefits. It is widely used in various fields, such as acclimatization training for people in high-altitude areas, athlete training and rehabilitation, and medical and healthcare applications.

[0003] However, most micro-pressure rigid oxygen chambers on the market currently use manually closing doors. When the chamber is unpressurized, the door opens by its own weight. During the initial pressurization phase, users need to manually press the door to keep the chamber sealed. Once a pressure difference exists between the inside and outside of the chamber, the door is locked, at which point the user can stop pressing. This operation is cumbersome, primitive, and not user-friendly. Summary of the Invention

[0004] To facilitate the opening and closing of the cabin door, this application provides an automatic opening mechanism for the cabin door of a micro-pressure rigid oxygen chamber.

[0005] The automatic opening mechanism for the door of a micro-pressure rigid oxygen chamber provided in this application adopts the following technical solution: An automatic opening mechanism for a micro-pressure rigid oxygen chamber door includes a door installed inside the chamber, the door being hinged within the chamber's entrance / exit, the hinge axis of the door being perpendicular to the ground, and the door rotating towards the interior of the chamber to open the entrance / exit. It also includes a magnetic lock body, a magnetic lock suction plate, and a sealing strip. The magnetic lock body is fixedly installed inside the chamber, the magnetic lock suction plate is fixedly installed on the door, and the magnetic lock body, when energized, is used to fix and attract the magnetic lock suction plate, thus closing the chamber entrance / exit. The sealing strip is annularly arranged and fixedly installed on the chamber; when the door closes the chamber entrance / exit, the door presses against the sealing strip.

[0006] Optionally, the entrance and exit of the cabin are bent to form an installation plate. The sealing strip includes a U-shaped strip and a cylindrical strip integrally formed on the U-shaped strip. The U-shaped strip is used to snap onto the installation plate. A snap-fit ​​strip is integrally formed on the inner side of the U-shaped strip. The installation plate is provided with a snap-fit ​​groove for snap-fit ​​strip to snap onto. The snap-fit ​​groove extends in the direction away from the cabin.

[0007] Optionally, a separation plate is provided on the outside of the hatch. The separation plate is movably disposed on the outside of the hatch. The initial position of the separation plate is located outside the sealing strip. A driving component is provided on the hatch. The driving component is used to drive the separation plate to move and pass through the contact surface between the hatch and the sealing strip, so that the inside and outside of the hatch are connected.

[0008] Optionally, the separation plate is slidably mounted on the hatch, and the sliding direction of the separation plate is perpendicular to the opposite sealing strip. A separation block is provided at the end of the separation plate facing the sealing strip. The cross-section of the separation block is a right-angled triangle. The driving component includes a screw threaded to the outside of the hatch. The separation plate is rotatably mounted on the screw. The rotation of the screw drives the separation plate and the separation block to slide towards the sealing strip and push open the sealing surface of the sealing strip and the hatch.

[0009] Optionally, a drive rod is provided on the inner side of the hatch and corresponding to the screw, and is parallel to the screw. A transmission rod is provided between the drive rod and the screw and spans the hatch. The transmission rod is rotatably mounted on the hatch. The transmission rod is perpendicular to the drive rod and the screw. A first bevel gear is provided at both ends of the transmission rod. A second bevel gear that meshes with the first bevel gear is provided at the ends of the drive rod and the screw. The screw is a telescopic structure.

[0010] Optionally, the screw includes a telescopic part and a threaded part. The threaded part is threadedly connected to the hatch. The separation plate is rotatably disposed at the end of the threaded part. The telescopic part includes a sleeve rod and a slide rod slidably sleeved in the sleeve rod. The slide rod has a rectangular cross-section. The second bevel gear is disposed on the sleeve rod. The threaded part is coaxially disposed on the slide rod.

[0011] Optionally, the separation plate has an installation groove on the side facing away from the hatch, and a rotating plate is rotatably installed in the installation groove. The rotation axis of the rotating plate is close to the separation block, and a separation component is also included for driving the rotating plate to rotate and separating the sealing strip and the separation plate.

[0012] Optionally, the separating component includes a rotating rod coaxially disposed at the end of the threaded portion. The rotating rod enters the mounting groove and is rotatably disposed within the separating plate. The separating component also includes an airbag disposed within the mounting groove. A bidirectional lead screw is coaxially disposed on the rotating rod. A clamping plate is threadedly connected to the bidirectional lead screw. The airbag is located within the clamping plate. The rotation of the bidirectional lead screw causes the clamping plates on both sides to move closer to each other and compress the airbag, causing the airbag to expand toward the rotating plate and drive the rotating plate to rotate.

[0013] Optionally, the separation plate is rotatably mounted on the hatch, the rotation axis of the separation plate is perpendicular to the hatch, the initial position of the separation plate is parallel to the sealing strip, the side of the separation plate facing the sealing strip is inclined and connected to the hatch, and the driving component is used to rotate the separation plate to enter the sealing surface of the sealing strip and the hatch.

[0014] Optionally, the drive unit includes a handle disposed on the separation plate mounting shaft, the handle being located inside the hatch, the handle being perpendicular to the mounting shaft, and the handle being slidably disposed on the mounting shaft.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. The magnetic lock body is fixed to the cabin, and the magnetic lock plate is fixed to the cabin door with bolts. The sealing strip is installed and fixed to the cabin body, forming a closed sealing ring. According to electromagnetic theory, when the magnetic lock body is energized from the outside, it generates a magnetic force that attracts the magnetic lock plate fixed to the cabin door, closing the cabin door. The operation is simple and convenient. Subsequently, the cabin is pressurized. When the air pressure inside the cabin increases, the cabin door presses against the sealing strip under the action of the air pressure difference between the inside and outside of the cabin, thereby improving the closure effect of the cabin door on the entrance and exit. When the cabin pressure reaches the predetermined pressure, the magnetic lock body is de-energized, the magnetic force on the magnetic lock body disappears, and it separates from the magnetic lock plate. Under the action of air pressure, the cabin door closes to the entrance and exit. During this process, the magnetic lock body is de-energized, reducing the consumption of electrical energy, which is energy-saving and environmentally friendly.

[0016] 2. When the magnetic lock body is de-energized, the magnetic force on the magnetic lock body disappears, it separates from the magnetic lock suction plate, and the cabin is depressurized. When the pressure is lower than or equal to the external pressure, the cabin door will automatically open by the elastic force of the sealing strip installed on the cabin, thus facilitating the opening of the cabin door. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 This is a schematic diagram of the structure of the magnetic lock body and magnetic lock suction plate in Embodiment 1 of this application; Figure 3 This is a cross-sectional view of the hatch in Embodiment 1 of this application, intended to show the sealing strip; Figure 4 This is a schematic diagram of the drive mechanism of the separation plate in Embodiment 1 of this application; Figure 5 This is a schematic diagram of the drive rod structure in Embodiment 1 of this application; Figure 6 This is a schematic diagram of the internal structure of the separation plate in Embodiment 1 of this application; Figure 7 This is a schematic diagram of the separation plate in Embodiment 2 of this application; Figure 8 This is a schematic diagram of the drive of the separation plate in Embodiment 2 of this application.

[0018] Explanation of reference numerals in the attached diagram: 1. Hull; 2. Door; 3. Magnetic lock body; 4. Magnetic lock suction plate; 5. Sealing strip; 51. U-shaped strip; 52. Cylindrical strip; 53. Snap-fit ​​strip; 6. Magnetic lock mounting bracket; 7. Separation plate; 8. Driving component; 81. Screw; 811. Sleeve rod; 812. Slide rod; 813. Threaded part; 82. Driving rod; 83. Transmission rod; 84. First bevel gear; 85. Second bevel gear; 86. Handle; 9. Separator block; 10. Mounting slot; 11. Rotating plate; 12. Rotating rod; 13. Airbag; 14. Two-way lead screw; 15. Clamping plate. Detailed Implementation

[0019] The present application will be further described in detail below with reference to the accompanying drawings.

[0020] This application discloses an automatic opening mechanism for the door of a micro-pressure rigid oxygen chamber.

[0021] Example 1 Reference Figure 1 and Figure 2 The automatic opening mechanism of the micro-pressure rigid oxygen chamber door includes a door 2 installed inside the chamber 1. The door 2 is hinged inside the entrance of the chamber 1, and the hinge axis of the door 2 is perpendicular to the ground. The door 2 rotates toward the inside of the chamber 1 to open the entrance of the chamber 1. It also includes a magnetic lock body 3, a magnetic lock suction plate 4, and a sealing strip 5. The magnetic lock body 3 is fixedly installed inside the chamber 1. In this embodiment, a magnetic lock mounting bracket 6 is welded inside the chamber 1. The magnetic lock suction plate 4 is fixedly installed on the door 2 by bolts. The magnetic lock body 3 is energized to fix and attract the magnetic lock suction plate 4, thereby closing the entrance of the chamber 1.

[0022] The magnetic lock body 3 is fixed to the cabin 1, the magnetic lock suction plate 4 is fixed to the cabin door 2 by bolts, and the sealing strip 5 is installed and fixed to the cabin 1, forming a closed sealing ring. According to electromagnetic theory, when the magnetic lock body 3 is energized from the outside, it generates a magnetic force that attracts the magnetic lock suction plate 4 fixed to the cabin door 2, closing the cabin door 2. The operation is simple and convenient. Subsequently, the cabin 1 is pressurized. When the air pressure inside the cabin 1 increases, the cabin door 2 is pressed against the cabin 1 under the action of the air pressure difference between the inside and outside of the cabin 1, thereby improving the closing effect of the cabin door 2 on the entrance and exit. When the cabin pressure reaches the predetermined pressure, the magnetic lock body 3 is de-energized, the magnetic force on the magnetic lock body 3 disappears, and it separates from the magnetic lock suction plate 4. Under the action of air pressure, the cabin door 2 closes to the entrance and exit. During this process, the magnetic lock body 3 is de-energized, reducing the consumption of electrical energy, which is energy-saving and environmentally friendly.

[0023] Reference Figure 2 and Figure 3 To improve the sealing effect of the cabin 1, the sealing strip 5 is arranged in a ring and fixedly installed on the cabin 1. When the cabin door 2 closes the entrance and exit of the cabin 1, the cabin door 2 presses against the sealing strip 5. After the cabin door 2 closes the cabin 1, the cabin door 2 presses against the sealing strip 5, thereby improving the sealing effect of the cabin 1. When the magnetic lock body 3 is de-energized, the magnetic force on the magnetic lock body 3 disappears, it separates from the magnetic lock suction plate 4, and the cabin 1 is depressurized. When the pressure is lower than or equal to the external pressure, the cabin door 2 automatically opens by the elastic force of the sealing strip 5 installed on the cabin 1, thereby facilitating the opening of the cabin door 2.

[0024] Reference Figure 2 , Figure 3 and Figure 4 In this embodiment, the entrance and exit of the cabin 1 are bent to form an installation plate 16. The sealing strip 5 includes a U-shaped strip 51 and a cylindrical strip 52 integrally formed on the U-shaped strip 51. The cabin door 2 is pressed onto the cylindrical strip 52. The U-shaped strip 51 is used to snap onto the installation plate 16. A snap-fit ​​strip 53 is integrally formed on the inner side of the U-shaped strip 51. The installation plate 16 has a snap-fit ​​groove for snap-fit ​​strip 53 to snap onto. The snap-fit ​​groove extends in the direction away from the cabin 1. Under the action of the U-shaped strip 51 and the snap-fit ​​strip 53, it is easy to install the sealing strip 5 on the cabin 1. And under the action of the cylindrical strip 52, the compression effect of the sealing strip 5 is improved, thereby improving the sealing effect of the cabin 1.

[0025] Reference Figure 4 , Figure 5 and Figure 6 When a power outage occurs due to an emergency in cabin 1, although the magnetic lock body 3 and magnetic lock suction plate 4 are de-energized and separated, the cabin door 2 is difficult to open due to the pressure difference between the inside and outside of cabin 1, which may cause panic among the users inside cabin 1. Therefore, in this embodiment, a separation plate 7 is provided on the outside of cabin door 2. The separation plate 7 is movably disposed on the outside of cabin door 2. The initial position of the separation plate 7 is located outside the sealing strip 5. A driving component 8 is provided on cabin door 2. The driving component 8 is used to drive the separation plate 7 to move and pass through the contact surface between cabin door 2 and sealing strip 5, so that the inside and outside of cabin 1 are connected. When it is necessary to open cabin door 2 in an emergency, the driving component 8 drives the separation plate 7 to move. The separation plate 7 enters the sealing surface between sealing strip 5 and cabin door 2 and pushes open sealing strip 5, so that the inside and outside of cabin 1 are connected. Cabin 1 is gradually depressurized. When the air pressure inside and outside cabin 1 is equal, cabin door 2 can be opened.

[0026] Reference Figure 4 , Figure 5 and Figure 6In this embodiment, the separation plate 7 is slidably disposed on the hatch 2 and is slidably engaged with the hatch 2. The sliding direction of the separation plate 7 is perpendicular to the opposite sealing strip 5. A separation block 9 is provided at the end of the separation plate 7 facing the sealing strip 5. The cross-section of the separation block 9 is a right-angled triangle. The driving component 8 includes a screw 81 threadedly connected to the outside of the hatch 2. The separation plate 7 is rotatably disposed on the screw 81. The rotation of the screw 81 drives the separation plate 7 and the separation block 9 to slide towards the sealing strip 5 and push open the sealing surface of the sealing strip 5 and the hatch 2. When the screw 81 is rotated, the screw 81 rotates and drives the separation plate 7 and the separation block 9 to slide. The inclined surface of the separation block 9 enters the sealing surface and pushes open the sealing strip 5 through the inclined surface of the separation block 9. The operation is simple and convenient.

[0027] Reference Figure 4 , Figure 5 and Figure 6 To facilitate the rotation of the screw 81 by the user inside the cabin 1, a drive rod 82 is provided on the inner side of the cabin door 2, corresponding to the screw 81 and parallel to it. A transmission rod 83 is provided between the drive rod 82 and the screw 81, spanning the cabin door 2. The transmission rod 83 is rotatably mounted on the cabin door 2 and is perpendicular to both the drive rod 82 and the screw 81. A first bevel gear 84 is provided at both ends of the transmission rod 83, and a second bevel gear 85 that meshes with the first bevel gear 84 is provided at the ends of both the drive rod 82 and the screw 81. The screw 81 is a telescopic structure. Reference Figure 4 , Figure 5 and Figure 6 The screw 81 includes a telescopic part and a threaded part 813. The threaded part 813 is threadedly connected to the hatch 2. The separation plate 7 is rotatably disposed at the end of the threaded part 813. The telescopic part includes a sleeve 811 and a slide rod 812 slidably sleeved in the sleeve 811. The slide rod 812 has a rectangular cross-section. The second bevel gear 85 is disposed on the sleeve 811. The threaded part 813 is coaxially disposed on the slide rod 812.

[0028] Because the drive rod 82 is located inside the hatch 2, it is convenient for the user to rotate the drive rod 82 inside the cabin 1 to drive the transmission rod 83 and the sleeve rod 811 to rotate. The rotation of the sleeve rod 811 drives the slide rod 812 to rotate, and the rotation of the slide rod 812 drives the threaded part 813 to rotate. The rotation of the threaded part 813 drives the separation plate 7 to slide. When the separation plate 7 slides, it drives the slide rod 812 to slide inside the sleeve rod 811, thereby facilitating the drive rod 82 to drive the separation plate 7 to slide.

[0029] Reference Figure 4 , Figure 5 and Figure 6When the thickness of the separating block 9 and the separating plate 7 is large, it is easy for the separating block and the separating plate 7 to be difficult to enter between the sealing strip 5 and the hatch 2. Therefore, in this embodiment, the separating plate 7 has an installation groove 10 on the side away from the hatch 2. A rotating plate 11 is rotatably arranged in the installation groove 10. The rotation axis of the rotating plate 11 is close to the separating block 9. It also includes a separating component for driving the rotating plate 11 to rotate and separate the sealing strip 5 and the separating plate 7. By appropriately reducing the thickness of the separating block 9 and the separating plate 7, when the separating block 9 enters between the sealing strip 5 and the hatch 2, the rotating plate 11 is driven to rotate under the action of the separating component. The rotating plate 11 rotates in the direction away from the installation groove 10, thereby driving the sealing strip 5 to separate from the hatch 2, which facilitates the balance of air pressure inside and outside the cabin 1.

[0030] Reference Figure 4 , Figure 5 and Figure 6 Furthermore, the separating component includes a rotating rod 12 coaxially disposed at the end of the threaded portion 813. The rotating rod 12 enters the mounting groove 10 and is rotatably disposed within the separating plate 7. The separating component also includes an airbag 13 disposed within the mounting groove 10. A bidirectional lead screw 14 is coaxially disposed on the rotating rod 12. A clamping plate 15 is threadedly connected to the bidirectional lead screw 14. The airbag 13 is located within the clamping plate 15. The rotation of the bidirectional lead screw 14 causes the clamping plates 15 on both sides to move closer together and compress the airbag 13, causing the airbag 13 to expand toward the rotating plate 11 and drive the rotating plate 11 to rotate. When the threaded portion 813 rotates, it drives the rotating rod 12 to rotate. The rotation of the rotating rod 12 drives the bidirectional lead screw 14 to rotate. The rotation of the bidirectional lead screw 14 causes the clamping plates 15 on both sides to move closer together. The clamping plates 15 move closer together and compress the airbag 13. When the airbag 13 is compressed, it pushes the rotating plate 11 to rotate. The operation is simple and convenient.

[0031] The implementation principle of Example 1 is as follows: The magnetic lock body 3 is fixed to the cabin 1, the magnetic lock suction plate 4 is fixed to the cabin door 2 by bolts, and the sealing strip 5 is installed and fixed to the cabin 1, forming a closed sealing ring. According to electromagnetic theory, when the magnetic lock body 3 is energized from the outside, it generates a magnetic force that attracts the magnetic lock suction plate 4 fixed to the cabin door 2, closing the cabin door 2. The operation is simple and convenient. Subsequently, the cabin 1 is pressurized. When the air pressure inside the cabin 1 increases, the cabin door 2 is pressed against the cabin 1 under the action of the air pressure difference between the inside and outside of the cabin 1, thereby improving the closing effect of the cabin door 2 on the entrance and exit. When the cabin pressure reaches the predetermined pressure, the magnetic lock body 3 is de-energized, the magnetic force on the magnetic lock body 3 disappears, and it separates from the magnetic lock suction plate 4. Under the action of air pressure, the cabin door 2 closes to the entrance and exit. During this process, the magnetic lock body 3 is de-energized, reducing the consumption of electrical energy, which is energy-saving and environmentally friendly. When it is necessary to open the hatch 2 in an emergency, the screw 81 drives the separation plate 7 to move. The separation plate 7 enters the sealing surface of the sealing strip 5 and the hatch 2 and pushes open the sealing strip 5, so that the inside and outside of the cabin 1 are connected. The cabin 1 is gradually depressurized. When the air pressure inside and outside the cabin 1 is the same, the hatch 2 is opened.

[0032] Example 2 The difference between Example 2 and Example 1 is that, referring to Figure 7 and Figure 8 The separation plate 7 is rotatably mounted on the hatch 2. The rotation axis of the separation plate 7 is perpendicular to the hatch 2. The initial position of the separation plate 7 is parallel to the sealing strip 5. The side of the separation plate 7 facing the sealing strip 5 is inclined and connected to the hatch 2. The driving component 8 is used to rotate the separation plate 7 to enter the sealing surface of the sealing strip 5 and the hatch 2. The driving component 8 includes a handle 86 mounted on the mounting shaft of the separation plate 7. The handle 86 is located inside the hatch 2 and is perpendicular to the mounting shaft. The handle 86 slides through the mounting shaft.

[0033] The user holds the handle 86 and rotates it. The rotation of the handle 86 causes the separation plate 7 to rotate, and the separation plate 7 rotates and enters the space between the sealing strip 5 and the hatch 2. The operation is simple and convenient.

[0034] Furthermore, the separation plate 7 has a through hole. When the separation plate 7 rotates into the space between the sealing strip 5 and the hatch 2, one side of the through hole is located inside the sealing strip 5, and the other side is located outside the sealing strip 5, so as to balance the air pressure inside and outside the cabin 1.

[0035] The implementation principle of Example 2 is as follows: The user holds the handle 86 and rotates the handle 86. The rotation of the handle 86 causes the separation plate 7 to rotate and enter the space between the sealing strip 5 and the hatch 2. After the separation plate 7 rotates into the space between the sealing strip 5 and the hatch 2, one side of the through hole is located inside the sealing strip 5 and the other side is located outside the sealing strip 5, so as to balance the air pressure inside and outside the cabin 1.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic opening mechanism for the door of a micro-pressure rigid oxygen chamber, characterized in that: The system includes a hatch (2) installed inside the cabin (1), the hatch (2) being hinged to the entrance / exit of the cabin (1), the hinge axis of the hatch (2) being perpendicular to the ground, and the hatch (2) rotating toward the interior of the cabin (1) to open the entrance / exit of the cabin (1). It also includes a magnetic lock body (3), a magnetic lock suction plate (4), and a sealing strip (5). The magnetic lock body (3) is fixedly installed inside the cabin (1), and the magnetic lock suction plate (4) is fixedly installed on the hatch (2). The magnetic lock body (3) is energized to fix and attract the magnetic lock suction plate (4), thus closing the entrance / exit of the cabin (1). The sealing strip (5) is arranged in a ring around the cabin (1) and fixedly installed on the cabin (1). When the hatch (2) closes the entrance / exit of the cabin (1), the hatch (2) presses against the sealing strip (5). A separation plate (7) is provided on the outside of the hatch (2), and the separation plate (7) is movably installed on the hatch (2). 2) On the outside, the initial position of the separation plate (7) is located outside the sealing strip (5). The hatch (2) is provided with a driving member (8). The driving member (8) is used to drive the separation plate (7) to move and pass through the contact surface of the hatch (2) and the sealing strip (5) so that the inside and outside of the cabin (1) are connected. The separation plate (7) is slidably disposed on the hatch (2). The sliding direction of the separation plate (7) is perpendicular to the sealing strip (5) directly opposite. The end of the separation plate (7) facing the sealing strip (5) is provided with a separation block (9). The cross section of the separation block (9) is a right triangle. The driving member (8) includes a screw (81) threadedly connected to the outside of the hatch (2). The separation plate (7) is rotatably disposed on the screw (81). The rotation of the screw (81) drives the separation plate (7) and the separation block (9) to slide towards the sealing strip (5) and push open the sealing surface of the sealing strip (5) and the hatch (2).

2. The automatic opening mechanism for a micro-pressure rigid oxygen chamber door according to claim 1, characterized in that: The entrance and exit of the cabin (1) are bent to form an installation plate (16). The sealing strip (5) includes a U-shaped strip (51) and a cylindrical strip (52) integrally formed on the U-shaped strip (51). The U-shaped strip (51) is used to snap onto the installation plate (16). A snap-fit ​​strip (53) is integrally formed on the inner side of the U-shaped strip (51). The installation plate (16) is provided with a snap-fit ​​groove for the snap-fit ​​strip (53) to snap onto. The snap-fit ​​groove extends in the direction away from the cabin (1).

3. The automatic opening mechanism for a micro-pressure rigid oxygen chamber door according to claim 1, characterized in that: A drive rod (82) is provided on the inner side of the hatch (2) and corresponding to the screw (81), and is parallel to the screw (81). A transmission rod (83) is provided between the drive rod (82) and the screw (81) and spans the hatch (2). The transmission rod (83) is rotatably mounted on the hatch (2). The transmission rod (83) is perpendicular to the drive rod (82) and the screw (81) respectively. A first bevel gear (84) is provided at both ends of the transmission rod (83). A second bevel gear (85) that meshes with the first bevel gear (84) is provided at the ends of the drive rod (82) and the screw (81). The screw (81) is a telescopic structure.

4. The automatic opening mechanism for a micro-pressure rigid oxygen chamber door according to claim 3, characterized in that: The screw (81) includes a telescopic part and a threaded part (813). The threaded part (813) is threadedly connected to the hatch (2). The separation plate (7) is rotatably disposed at the end of the threaded part (813). The telescopic part includes a sleeve (811) and a slide rod (812) slidably sleeved in the sleeve (811). The slide rod (812) has a rectangular cross-section. The second bevel gear (85) is disposed on the sleeve (811). The threaded part (813) is coaxially disposed on the slide rod (812).

5. The automatic opening mechanism for a micro-pressure rigid oxygen chamber door according to claim 4, characterized in that: The separation plate (7) has an installation groove (10) on the side facing away from the hatch (2). A rotating plate (11) is rotatably installed in the installation groove (10). The rotation axis of the rotating plate (11) is close to the separation block (9). It also includes a separation component for driving the rotating plate (11) to rotate and separate the sealing strip (5) and the separation plate (7).

6. The automatic opening mechanism for a micro-pressure rigid oxygen chamber door according to claim 5, characterized in that: The separating component includes a rotating rod (12) coaxially disposed at the end of the threaded portion (813). The rotating rod (12) enters the mounting groove (10) and is rotatably disposed within the separating plate (7). The separating component also includes an airbag (13) disposed within the mounting groove (10). A bidirectional lead screw (14) is coaxially disposed on the rotating rod (12). A clamping plate (15) is threadedly connected to the bidirectional lead screw (14). The airbag (13) is located within the clamping plate (15). The rotation of the bidirectional lead screw (14) causes the clamping plates (15) on both sides to move closer to each other and squeeze the airbag (13), causing the airbag (13) to expand toward the rotating plate (11) and drive the rotating plate (11) to rotate.

7. An automatic opening mechanism for the door of a micro-pressure rigid oxygen chamber, characterized in that: The system includes a hatch (2) installed inside the cabin (1), the hatch (2) being hinged within the entrance / exit of the cabin (1), the hinge axis of the hatch (2) being perpendicular to the ground, and the hatch (2) rotating toward the interior of the cabin (1) to open the entrance / exit of the cabin (1). It also includes a magnetic lock body (3), a magnetic lock suction plate (4), and a sealing strip (5). The magnetic lock body (3) is fixedly installed inside the cabin (1), and the magnetic lock suction plate (4) is fixedly installed on the hatch (2). The magnetic lock body (3) is energized to fix and attract the magnetic lock suction plate (4), thus closing the entrance / exit of the cabin (1). The sealing strip (5) is arranged in a ring and fixedly installed on the cabin (1). When the hatch (2) closes the entrance / exit of the cabin (1), the hatch (2) presses against the sealing strip (5). (2) A separation plate (7) is provided on the outside. The separation plate (7) is movably disposed on the outside of the hatch (2). The initial position of the separation plate (7) is located on the outside of the sealing strip (5). A driving member (8) is provided on the hatch (2). The driving member (8) is used to drive the separation plate (7) to move and pass through the contact surface of the hatch (2) and the sealing strip (5) so that the inside and outside of the cabin (1) are connected. The separation plate (7) is rotatably disposed on the hatch (2). The rotation axis of the separation plate (7) is perpendicular to the hatch (2). The initial position of the separation plate (7) is parallel to the sealing strip (5). The side of the separation plate (7) facing the sealing strip (5) is inclined and connected to the hatch (2). The driving member (8) is used to rotate the separation plate (7) to rotate and enter the sealing surface of the sealing strip (5) and the hatch (2).

8. The automatic opening mechanism for a micro-pressure rigid oxygen chamber door according to claim 7, characterized in that: The drive unit (8) includes a handle (86) disposed on the mounting shaft of the separation plate (7). The handle (86) is located inside the hatch (2), perpendicular to the mounting shaft, and slides through the mounting shaft.

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