Convection ventilation type hyperbaric oxygen chamber in normal pressure state

Abstract

The invention relates to the technical field of oxygen cabins, in particular to a convection ventilation type hyperbaric oxygen cabin in a normal pressure state, which comprises a base, baffles are respectively arranged at two ends of the base, an oxygen cabin main body is arranged between the two baffles, and two ends of the oxygen cabin main body are respectively and fixedly connected with the baffles through fixing columns. Ventilation openings communicated with the outside are formed in the two ends of the oxygen cabin body respectively, an automatic sealing assembly is arranged at each ventilation opening, and each automatic sealing assembly comprises a sealing plate and a reset spring. Ventilation plates are arranged in the oxygen cabin body, a plurality of ventilation holes are formed in the ventilation plates, and an air cylinder is arranged between each ventilation plate and the sealing plate. The hyperbaric oxygen chamber is reasonable in structure, easy and convenient to operate, good in sealing performance, capable of achieving convection ventilation, safe and reliable, and the use experience and safety of a user can be remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of oxygen chambers, in particular to a convection ventilation type hyperbaric oxygen chamber under normal pressure. Background Art

[0002] The oxygen chamber is a special medical device for high-pressure oxygen therapy. Its principle is to place the user in an oxygen-rich environment with a pressure higher than normal atmospheric pressure. Under the action of high pressure, oxygen is input into the respiratory and microcirculatory systems and reaches various organs of the human body, increasing the level of arterial oxygen partial pressure and oxygen saturation to promote human metabolism. Since the chamber needs to be inflated to achieve a high pressure state, the oxygen chamber is generally designed as a highly sealed cavity structure. When the door is closed, the chamber is in a closed state.

[0003] Currently, most commonly used hyperbaric oxygen chambers are designed as an integrated type, with no open vents except for the door and the tracheal valve body interface. During normal use, the trachea and valve body are connected in advance to ensure their sealing, and then the door is closed. At this time, a sealed cavity can be formed inside the cabin. When the air compressor is inflated, the pressure in the cabin can rise, and hyperbaric oxygen treatment can begin. When the treatment is completed, turn off the air compressor. At this time, you can manually open the pressure relief valve on the oxygen chamber or the oxygen chamber controller can automatically release the pressure. When the pressure drops to atmospheric pressure, the user can open the door and exit the cabin to end the treatment. However, during the treatment process, continuous ventilation and pressure relief balance are generally guaranteed, and there is always fresh air entering and exhaust gas being discharged in the cabin, so the user will not experience symptoms such as hypoxia. However, when the air compressor stops due to emergencies such as active shutdown or power outage, fresh air will no longer enter the cabin. At this time, if the user fails to open the cabin door and leave the cabin in time for some reason (such as illness or falling asleep), even if the pressure in the cabin is released through the power-off pressure relief function of the controller, there are only small holes in the cabin that can achieve active ventilation through pressure difference. It is still in a relatively closed environment. Staying in the cabin for a long time will cause serious hazards such as hypoxia, and there are still major safety hazards. Summary of the invention

[0004] In order to solve the above technical problems, the present invention specifically adopts the following technical solutions.

[0005] A convection ventilation type hyperbaric oxygen chamber under normal pressure is designed, comprising a base, baffles are respectively arranged at both ends of the base, an oxygen chamber body is arranged between the two baffles, both ends of the oxygen chamber body are respectively fixedly connected to the corresponding baffles through fixing columns, air holes connected to the outside are respectively opened at both ends of the oxygen chamber body, and an automatic sealing component for blocking the air holes is respectively arranged at each air hole, and the automatic sealing component comprises a sealing plate arranged at each air hole and extending to the inside of the oxygen chamber body, and a reset spring connected between the center of the outer end of the sealing plate and the baffle; A ventilation plate is arranged inside the oxygen cabin body near each sealing plate, a plurality of ventilation holes are opened on the ventilation plate, and a cylinder for applying external force to the sealing plate is arranged between each ventilation plate and the sealing plate.

[0006] Preferably, there are multiple fixing columns, which are distributed in a circular array at the ends of the baffle and the oxygen chamber body.

[0007] Preferably, the outer arc surface of the sealing plate is in close contact with the inner arc surface of the oxygen chamber body at the air vent.

[0008] Preferably, a plurality of guide posts are respectively provided at the outer end of the sealing plate and located outside the return spring, and the other end of the guide post movably passes through the baffle and is connected to the limiting component.

[0009] Preferably, the cylinder is of automatic rebound type.

[0010] Preferably, a spring groove is provided at the center of each sealing plate and the baffle plate relative to each other, and two ends of the return spring are fixed in the spring groove respectively.

[0011] Preferably, when the return spring is in a natural state, ventilation gaps are respectively left between each sealing plate and both ends of the cabin body.

[0012] Preferably, a sealing belt is provided on the periphery of the sealing plate, and the sealing belt forms a seal on the air vent by being squeezed with the two end walls of the oxygen chamber body.

[0013] The beneficial effects of the present invention are: 1. The present invention uses the design of the air vents and ventilation plates, so that even when the door is closed, the air vents at both ends of the oxygen chamber body can still achieve convection, ensuring that the air in the chamber is always in a relatively fresh state. This avoids the problem of air quality degradation or hypoxia caused by air stagnation in the chamber due to emergencies, and improves the comfort and safety of users.

[0014] 2. The sealing plate and the air vent are tightly fitted in the present invention, and the double sealing design of the sealing belt ensures the sealing performance of the air vent. During the pressurization process, the pressure in the cabin pushes the sealing plate toward both ends, so that the sealing plate is squeezed to the cabin walls at both ends, further enhancing the sealing effect and avoiding leakage problems.

[0015] 3. When the treatment is finished or interrupted for other reasons, the pressure in the cabin is reduced to atmospheric pressure, the sealing plate returns to its initial state under the action of the reset spring, and the vent is reopened to ensure air circulation in the cabin. This avoids the risk of people being stranded in a relatively closed cabin due to various emergencies, reduces the probability of safety accidents, and ensures the safety of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall structure of the structure of the present invention; Figure 2 It is a partial cross-sectional structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the structure of the preparation treatment stage of the present invention; Figure 4 It is a schematic diagram of the structure of the treatment stage of the present invention; Figure 5 is a schematic diagram of the structure at the end of the treatment of the present invention; Figure 6 It is a work flow chart of the present invention; The numbers in the figure are: 1 oxygen chamber body, 2 guide column, 3 baffle, 4 return spring, 5 ventilation hole, 6 ventilation plate, 7 base, 8 guide column hole, 9 guide column, 10 sealing belt, 11 sealing plate, 12 air vent, 13 spring groove, 14 cylinder, 15 ventilation gap. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. Example

[0018] A convection-ventilated hyperbaric oxygen chamber under normal pressure, such as Figures 1 to 6 As shown, based on the appearance of a capsule-type oxygen cabin, it includes a base 7 for supporting the entire oxygen cabin body, baffles 3 are respectively provided at both ends of the base 7. The baffle 3 is used to fix the oxygen cabin body 1, and the oxygen cabin body 1 is provided between the two baffles 3. The two ends of the oxygen cabin body 1 are respectively fixedly connected to the corresponding baffles 3 through fixing columns 2. There are multiple fixing columns 2, which are distributed in a circular array at the ends of the baffles 3 and the oxygen cabin body 1. The array-distributed fixing columns 2 can strengthen the connection strength between the baffles 3 and the oxygen cabin body 1.

[0019] The outer arc surface of the sealing plate 11 is closely fitted with the inner arc surface of the oxygen chamber body 1 at the air vent 12. In order to further strengthen the seal, a sealing belt 10 is arranged on the periphery of the sealing plate 11, and the sealing belt 10 forms a tight seal on the air vent 12 by squeezing with the two end walls of the oxygen chamber body 1.

[0020] Air vents 12 communicating with the outside are respectively provided at both ends of the oxygen chamber body 1, and an automatic sealing component for sealing the air vents 12 is respectively provided at each air vent 12, and the automatic sealing component includes a sealing plate 11 arranged at each air vent 12 and extending to the interior of the oxygen chamber body 1, and a reset spring 4 connected between the center of the outer end of the sealing plate 11 and the baffle 3, and a spring groove 13 is respectively provided at the center relative to each other of the sealing plate 11 and the baffle 3, and the two ends of the reset spring 4 are respectively fixed in the spring groove 13, and the setting of the spring groove 13 facilitates the installation of the reset spring 4, and a plurality of guide columns 9 are respectively provided at the outer side of the reset spring 4 at the outer end of the sealing plate 11, and the other end of the guide column 9 is movable through the baffle 3 and connected to a limiting component. The setting of the guide column 9 can form a stable parallel displacement between the sealing plate 11 and the baffle 3, thereby preventing the sealing plate 11 from offsetting when sealing and blocking the air vent 12.

[0021] A ventilation plate 6 is provided inside the oxygen chamber body 1 near each sealing plate 11, and a plurality of ventilation holes 5 are opened on the ventilation plate 6. A cylinder 14 for applying external force to the sealing plate 11 is provided between each ventilation plate 6 and the sealing plate 11, so that the sealing plate 11 is pushed outward, so that the air vent 12 can be sealed when preparing for treatment. The cylinder 14 is of automatic rebound type, and when the air intake stops, it automatically rebounds to a contracted state. At this time, the air vent 12 can be sealed by relying only on the top thrust of the sealing plate 11 by the pressure in the cabin, so that the return spring 4 is in a compressed state. When the return spring 4 is in a natural state, a ventilation gap 15 is left between each sealing plate 11 and the two ends of the cabin body and the ventilation plate 6, respectively, which can ensure that a larger space is formed between the air vents 12 at both ends of the oxygen cabin body 1 and the ventilation gaps 15, so that even in the sealed state of the oxygen cabin door, the air vents 12 at both ends of the oxygen cabin body 1 can achieve convection, thereby ensuring that fresh air can enter from either end of the oxygen cabin body 1 and be discharged from the air vent 12 at the other end after passing through the ventilation hole 5, thereby ensuring that the air in the cabin is always in a relatively fresh state.

[0022] When preparing for treatment, the present invention first connects all pipelines and valve bodies, closes the cabin door, and then turns on the machine. Within a few minutes of starting up, the air compressor fills the cabin with air on the one hand, and inflates the cylinder 14 on the other hand. The cylinder 14 is lifted up, pushing the sealing plates 11 at both ends of the oxygen cabin body 1 to move toward the air vent 12 until the sealing belt 10 is pressed against the cabin wall to achieve sealing. At this time, the cabin begins to increase pressure.

[0023] After the oxygen chamber has been running for a few minutes, under normal circumstances, pressure already exists in the chamber. At this time, the air compressor is stopped from inflating the cylinder 14 through electronic control, and the telescopic end of the cylinder 14 is retracted. At this time, only the thrust of the end sealing plate 11 by the pressure in the chamber can ensure that the sealing plate 11 is close to the cabin wall, and the air vent 12 is continuously sealed until the set pressure is reached and the treatment is terminated.

[0024] When the treatment is finished or interrupted for other reasons, the user can actively release the pressure or the controller can automatically release the pressure to reduce the pressure in the cabin to atmospheric pressure. At this time, the internal outward thrust of the sealing plate 11 disappears, and the external reset spring 4 gradually resets and restores the elastic force, thereby applying an inward thrust to the sealing plate 11, so that the sealing plate 11 moves toward the inside of the oxygen cabin until the reset spring 4 returns to its natural state. At this time, the two ends of the oxygen cabin body 1 return to their initial state, and the air vents 12 at both ends of the oxygen cabin body 1 can achieve convection, so that fresh air can circulate in the cabin. This avoids the situation in which, in a pressure-free state, even if the door of the oxygen cabin body 1 is closed, the two ends of the oxygen cabin remain open, thereby avoiding the situation in which people are stranded in a relatively closed cabin due to various emergencies, reducing the occurrence of safety accidents, and thus protecting the safety of users.

[0025] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A convection-ventilated hyperbaric oxygen chamber under normal pressure, characterized in that: The oxygen chamber body comprises a base, baffles are respectively arranged at both ends of the base, an oxygen chamber body is arranged between the two baffles, both ends of the oxygen chamber body are respectively fixedly connected to the corresponding baffles through fixing columns, air holes communicating with the outside are respectively opened at both ends of the oxygen chamber body, and an automatic sealing component for blocking the air holes is respectively arranged at each air hole, and the automatic sealing component comprises a sealing plate arranged at each air hole and extending to the inside of the oxygen chamber body, and a reset spring connected at the center of the outer end of the sealing plate and between the baffles; A ventilation plate is provided inside the oxygen chamber body near each sealing plate, a plurality of ventilation holes are opened on the ventilation plate, and a cylinder for applying external force to the sealing plate is provided between each ventilation plate and the sealing plate.

2. The convection ventilation hyperbaric oxygen chamber under normal pressure as claimed in claim 1, characterized in that: There are multiple fixing columns, which are distributed in a circular array at the ends of the baffle and the oxygen chamber body.

3. The convection ventilation hyperbaric oxygen chamber under normal pressure as claimed in claim 1, characterized in that: The outer arc surface of the sealing plate is closely fitted with the inner arc surface of the oxygen chamber body at the air vent.

4. The convection ventilation hyperbaric oxygen chamber under normal pressure as claimed in claim 1, characterized in that: A plurality of guide posts are respectively arranged at the outer end of the sealing plate and the outer side of the return spring, and the other end of the guide post movably passes through the baffle and is connected to a limiting component.

5. The convection ventilation hyperbaric oxygen chamber under normal pressure as claimed in claim 1, characterized in that: The cylinder is of automatic rebound type.

6. The convection ventilation hyperbaric oxygen chamber under normal pressure as claimed in claim 1, characterized in that: A spring groove is respectively arranged at the center of each sealing plate and the baffle plate, and two ends of the return spring are respectively fixed in the spring groove.

7. The convection ventilation hyperbaric oxygen chamber under normal pressure as claimed in claim 1, characterized in that: When the return spring is in a natural state, ventilation gaps are respectively left between each sealing plate and the two ends of the cabin body.

8. The convection ventilation hyperbaric oxygen chamber under normal pressure as claimed in claim 1, characterized in that: A sealing belt is arranged on the periphery of the sealing plate, and the sealing belt forms a seal on the air vent by being squeezed with the two end walls of the oxygen cabin body.

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