An airtight door suitable for hyperbaric oxygen chambers

By introducing a baffle frame, sealing frame, and sealing airbag into the airtight door of the hyperbaric oxygen chamber, the problem of insufficient sealing performance of traditional airtight doors under high pressure is solved, and flexible sealing and safety adaptation adjustment are achieved in the hyperbaric oxygen chamber.

CN224282417UActive Publication Date: 2026-05-26WUHAN HANLIAN INTELLIGENT CONTROL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN HANLIAN INTELLIGENT CONTROL TECH CO LTD
Filing Date
2025-07-18
Publication Date
2026-05-26

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    Figure CN224282417U_ABST
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Abstract

This utility model relates to the field of airtight door technology and discloses an airtight door suitable for a high-pressure oxygen chamber. It includes an airtight door body with a baffle frame integrally installed on its outer wall, a sealing mechanism located on the outside of the airtight door body, and an adjustment mechanism located on one side of the airtight door body. By pressing the button, a moving plate is driven to compress an elastic element. The moving plate moves a locking pin out of a locking hole, pushing a circular plate, which in turn moves a fixed rod and a piston. The piston pushes the gas inside the fixed shell through a connecting pipe to the sealing airbag. The sealing airbag further seals the airtight door, improving the sealing quality. Loosening the button pushes the elastic element to move the moving plate and locking pin into the locking hole to fix the circular plate. Through the multiple locking holes, the amount of gas entering the sealing airbag can be flexibly adjusted according to the pressure inside the chamber, thus adjusting the sealing performance of the sealing airbag and improving the flexibility and practicality of the device.
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Description

Technical Field

[0001] This utility model relates to the field of airtight door technology, specifically an airtight door suitable for high-pressure oxygen chambers. Background Technology

[0002] Hyperbaric oxygen chambers create an environment with pressure higher than standard atmospheres, allowing patients to inhale high concentrations of oxygen to treat hypoxic diseases. Their sealing performance directly affects the stability of the pressure inside the chamber, the treatment effect, and even the patient's life safety. Traditional sealing doors mostly use a mechanical clamping structure, forcibly tightening the sealing strip through complex mechanical components.

[0003] Existing airtight doors rely solely on simple sealing strips for sealing. When the pressure inside the hyperbaric oxygen chamber increases, it is difficult to adjust the sealing strength of the airtight door according to the pressure changes. When the pressure is too high, gas can easily leak from the airtight door, reducing the sealing quality and affecting its use. Utility Model Content

[0004] The purpose of this invention is to provide an airtight door suitable for high-pressure oxygen chambers, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an airtight door suitable for a hyperbaric oxygen chamber, comprising an airtight door body, a baffle frame integrally installed on the outer wall of the airtight door body, handles fixedly installed on both sides of the airtight door body, and an observation window provided on the side of the airtight door body;

[0006] A sealing mechanism is provided on the outside of the airtight door body. The sealing mechanism includes a sealing frame and a sealing gasket located on one side of the baffle frame. The sealing mechanism is used to seal the airtight door body.

[0007] An adjustment mechanism is provided on one side of the airtight door body. The adjustment mechanism includes a sealing airbag located on the outside of the airtight door body. A fixing shell is provided on one side of the sealing airbag. The adjustment mechanism is used to further seal the airtight door body.

[0008] Preferably, the side of the baffle frame is provided with an installation groove, the inner wall of the installation groove is fixedly connected to the outer wall of the sealing frame, and the sealing frame is made of sealing rubber material.

[0009] Preferably, the outer wall of the airtight door body is provided with a sealing groove, the sealing gasket is square in shape, and the inner wall of the sealing groove is fixedly connected to the outer wall of the sealing gasket.

[0010] Preferably, the outer wall of the airtight door body is provided with a connecting groove, the inner wall of the connecting groove is fixedly connected to the outer wall of one side of the sealing airbag, the sealing airbag is connected to a connecting pipe, and the side of the airtight door body is provided with a groove.

[0011] Preferably, the inner wall of the tank is fixedly connected to the outer wall of one end of the fixed shell, the other end of the connecting pipe slides through the inner wall of the connecting tank and extends into the tank to communicate with the fixed shell, a piston is slidably installed on the inner wall of the fixed shell, a fixing rod is fixedly installed on the side of the piston, the other end of the fixing rod slides through the inner wall of the fixed shell and extends to the outer side of the fixed shell, and a circular plate is fixedly installed on one end of the fixing rod.

[0012] Preferably, the circular plate has three through holes on its side, and limit posts are slidably installed on the inner walls of the three through holes. One end of each limit post is fixedly connected to the side of the fixed shell, and a limit plate is fixedly installed on the other end of each limit post. Multiple locking holes are provided on the outer walls of each limit post.

[0013] Preferably, the circular plate has three cavities inside, and a movable plate is slidably installed on the inner wall of each of the three cavities. A locking post is fixedly installed on the side of each of the three movable plates, and the other end of each locking post slides through the inner wall of the cavity and engages with a locking hole. The side of the movable plate is elastically connected to the inner wall of one side of the cavity through an elastic element. An adjustment groove is formed through the inner wall of the cavity, and a pressing plate is fixedly installed on the side of the movable plate. The side of the pressing plate is slidably connected to the inner wall of the adjustment groove.

[0014] This invention provides an airtight door suitable for a hyperbaric oxygen chamber. This airtight door for a hyperbaric oxygen chamber has the following advantages:

[0015] (1) This airtight door suitable for high-pressure oxygen chambers, by pressing the button, drives the moving plate to squeeze the elastic element, the moving plate drives the locking pin to move out of the locking hole, pushes the round plate, drives the fixed rod and piston to move, the piston pushes the gas inside the fixed shell to be transported from the connecting pipe to the sealing airbag, the sealing airbag collides to further seal the airtight door, improves the sealing quality, loosens the button, the elastic element pushes the moving plate and locking pin to move into the locking hole to fix the round plate. Through the multiple locking holes, the amount of gas entering the sealing airbag can be flexibly adjusted according to the pressure inside the chamber, the sealing performance of the sealing airbag can be adjusted, and the flexibility and practicality of the device can be improved.

[0016] (2) The airtight door for high-pressure oxygen chambers, through the set baffle and sealing frame, when the air pressure inside the chamber increases, pushes the airtight door body and the baffle to squeeze the sealing frame, thereby improving the sealing performance between the baffle and the chamber body. The set sealing gasket further seals the airtight door body and the chamber body, thereby improving the sealing quality of the airtight door body. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0018] Figure 2This is an exploded view of the sealing gasket structure of this utility model;

[0019] Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 4 This is an exploded view of the piston structure of this utility model;

[0021] Figure 5 This is a schematic cross-sectional view of the fixed shell structure of this utility model.

[0022] In the diagram: 1. Airtight door body; 101. Handle; 102. Baffle frame; 103. Observation window; 2. Sealing mechanism; 201. Mounting groove; 202. Sealing frame; 203. Sealing groove; 204. Sealing gasket; 3. Adjustment mechanism; 301. Connecting groove; 302. Sealing airbag; 303. Groove body; 304. Fixed shell; 305. Connecting pipe; 306. Piston; 307. Fixed rod; 308. Circular plate; 309. Through hole; 310. Limiting post; 311. Locking hole; 312. Limiting plate; 313. Cavity; 314. Moving plate; 315. Locking post; 316. Adjustment groove; 317. Elastic element; 318. Button. Detailed Implementation

[0023] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0024] like Figure 1-2 As shown, this utility model has the following two specific embodiments.

[0025] Example 1

[0026] An airtight door suitable for a hyperbaric oxygen chamber includes an airtight door body 1, a baffle 102 integrally installed on the outer wall of the airtight door body 1, handles 101 fixedly installed on both sides of the airtight door body 1, and an observation window 103 provided on the side of the airtight door body 1.

[0027] The sealing mechanism 2 is located on the outside of the airtight door body 1. The sealing mechanism 2 includes a sealing frame 202 and a sealing gasket 204 located on one side of the baffle frame 102. The sealing mechanism 2 is used to seal the airtight door body 1. The baffle frame 102 has an installation groove 201 on its side. The inner wall of the installation groove 201 is fixedly connected to the outer wall of the sealing frame 202. The sealing frame 202 is made of sealing rubber material. The outer wall of the airtight door body 1 has a sealing groove 203. The sealing gasket 204 is square in shape. The inner wall of the sealing groove 203 is fixedly connected to the outer wall of the sealing gasket 204.

[0028] When the air pressure inside the chamber increases, the baffle frame 102 and the sealing frame 202 push the airtight door body 1 and the baffle frame 102 to squeeze the sealing frame 202, thereby improving the sealing performance between the baffle frame 102 and the chamber body. The sealing gasket 204 further seals the airtight door body 1 and the chamber body, thereby improving the sealing quality of the airtight door body 1.

[0029] The difference between Embodiment 2 and Embodiment 1 is that this embodiment discloses an adjustment mechanism 3. The adjustment mechanism 3 is located on one side of the airtight door body 1. The adjustment mechanism 3 includes a sealing airbag 302 located on the outside of the airtight door body 1. A fixing shell 304 is provided on one side of the sealing airbag 302. The adjustment mechanism 3 is used to further seal the airtight door body 1. A connecting groove 301 is opened on the outer wall of the airtight door body 1. The inner wall of the connecting groove 301 is fixedly connected to the outer wall of one side of the sealing airbag 302. A connecting pipe 305 is connected to one side of the sealing airbag 302. A groove 303 is opened on the side of the airtight door body 1. The inner wall of the groove 303 is fixedly connected to the outer wall of one end of the fixing shell 304. The other end of the connecting pipe 305 slides through the inner wall of the connecting groove 301 and extends into the groove 303 to communicate with the fixing shell 304. A piston 306 is slidably installed on the inner wall of the fixing shell 304. A fixing rod 307 is fixedly installed on the side of the piston 306. The other end of the fixing rod 307 slides through the inner wall of the fixing shell 304 and extends into the fixing shell 304. 4. On the outer side, a circular plate 308 is fixedly installed at one end of the fixing rod 307. Three through holes 309 are opened through the side of the circular plate 308. Limiting posts 310 are slidably installed on the inner walls of the three through holes 309 respectively. One end of the three limiting posts 310 is fixedly connected to the side of the fixing shell 304. A limiting plate 312 is fixedly installed at the other end of the three limiting posts 310. Multiple locking holes 311 are opened on the outer walls of the three limiting posts 310 respectively. Three cavities 313 are opened inside the circular plate 308. Movable plates 314 are slidably installed on the inner wall of each of the three movable plates 314. Each of the three movable plates 314 has a locking post 315 fixedly installed on its side. The other end of each locking post 315 slidably penetrates the inner wall of the cavity 313 and engages with a locking hole 311. The side of each movable plate 314 is elastically connected to one side of the inner wall of the cavity 313 via an elastic element 317. An adjustment groove 316 is formed through the inner wall of the cavity 313. A pressing plate 318 is fixedly installed on the side of each movable plate 314. The side of the pressing plate 318 is slidably connected to the inner wall of the adjustment groove 316. Figure 3-5 As shown.

[0030] By pressing the button 318, the moving plate 314 is driven to squeeze the elastic element 317. The moving plate 314 drives the locking pin 315 to move out of the locking hole 311, pushing the circular plate 308, which in turn drives the fixed rod 307 and piston 306 to move. The piston 306 pushes the gas inside the fixed shell 304 to be transported from the connecting pipe 305 to the sealing airbag 302. The sealing airbag 302 further seals the airtight door body 1 by impact, improving the sealing quality. By loosening the button 318, the elastic element 317 pushes the moving plate 314 and locking pin 315 into the locking hole 311 to fix the circular plate 308. Through the multiple locking holes 311, the amount of gas entering the sealing airbag 302 can be flexibly adjusted according to the pressure inside the chamber, thereby adjusting the sealing performance of the sealing airbag 302 and improving the flexibility and practicality of the device.

[0031] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model. Furthermore, it should be noted that the components of this utility model are not limited to the overall application described above. Each technical feature described in the specification of this utility model can be used individually or in combination as needed. Therefore, this utility model naturally covers other combinations and specific applications related to this application.

Claims

1. An airtight door suitable for a hyperbaric oxygen chamber, comprising an airtight door body (1), characterized in that: The airtight door body (1) has a baffle (102) integrally installed on the outer wall, and handles (101) are fixedly installed on both sides of the airtight door body (1). An observation window (103) is provided on the side of the airtight door body (1). A sealing mechanism (2) is provided on the outside of the airtight door body (1). The sealing mechanism (2) includes a sealing frame (202) and a sealing gasket (204) located on one side of the baffle (102). The sealing mechanism (2) is used to seal the airtight door body (1). Adjustment mechanism (3) is provided on one side of airtight door body (1). The adjustment mechanism (3) includes a sealing airbag (302) located outside the airtight door body (1). A fixing shell (304) is provided on one side of the sealing airbag (302). The adjustment mechanism (3) is used to further seal the airtight door body (1).

2. The airtight door suitable for a hyperbaric oxygen chamber according to claim 1, characterized in that: The side of the baffle (102) is provided with an installation groove (201), the inner wall of the installation groove (201) is fixedly connected to the outer wall of the sealing frame (202), and the sealing frame (202) is made of sealing rubber material.

3. The airtight door suitable for a hyperbaric oxygen chamber according to claim 1, characterized in that: The airtight door body (1) has a sealing groove (203) on its outer wall, and the sealing gasket (204) is square in shape. The inner wall of the sealing groove (203) is fixedly connected to the outer wall of the sealing gasket (204).

4. The airtight door suitable for a hyperbaric oxygen chamber according to claim 1, characterized in that: The outer wall of the airtight door body (1) is provided with a connecting groove (301), the inner wall of the connecting groove (301) is fixedly connected to the outer wall of one side of the sealing airbag (302), the sealing airbag (302) is connected to a connecting pipe (305), and the side of the airtight door body (1) is provided with a groove (303).

5. An airtight door suitable for a hyperbaric oxygen chamber according to claim 4, characterized in that: The inner wall of the groove (303) is fixedly connected to the outer wall of one end of the fixed shell (304). The other end of the connecting pipe (305) slides through the inner wall of the connecting groove (301) and extends into the groove (303) to communicate with the fixed shell (304). A piston (306) is slidably installed on the inner wall of the fixed shell (304). A fixing rod (307) is fixedly installed on the side of the piston (306). The other end of the fixing rod (307) slides through the inner wall of the fixed shell (304) and extends to the outside of the fixed shell (304). A circular plate (308) is fixedly installed on one end of the fixing rod (307).

6. An airtight door suitable for a hyperbaric oxygen chamber according to claim 5, characterized in that: The circular plate (308) has three through holes (309) on its side. Limiting posts (310) are slidably installed on the inner walls of the three through holes (309). One end of the three limiting posts (310) is fixedly connected to the side of the fixed shell (304). The other end of the three limiting posts (310) is fixedly installed with a limiting plate (312). The outer walls of the three limiting posts (310) are provided with multiple locking holes (311).

7. An airtight door suitable for a hyperbaric oxygen chamber according to claim 6, characterized in that: The circular plate (308) has three cavities (313) inside. The inner walls of the three cavities (313) are slidably mounted with movable plates (314). The sides of the three movable plates (314) are fixedly mounted with locking posts (315). The other ends of the three locking posts (315) slide through the inner wall of the cavity (313) and engage with locking holes (311). The side of the movable plate (314) is elastically connected to the inner wall of one side of the cavity (313) through an elastic element (317). The inner wall of the cavity (313) has an adjustment groove (316) through it. The side of the movable plate (314) is fixedly mounted with a pressing plate (318). The side of the pressing plate (318) is slidably connected to the inner wall of the adjustment groove (316).