Decompression adjustment device for hyperbaric chamber

Abstract

The utility model relates to high pressure oxygen cabin technical field especially relates to high pressure oxygen cabin pressure reducing adjusting device, include: connecting seat, one end is fixedly connected with high pressure oxygen cabin bulkhead, the other end is provided with pressure reducing pipe, and the pressure reducing pipe inside is equipped with pressure reducing channel along the axial direction, adjusting valve core is slidably arranged in the pressure reducing channel of pressure reducing pipe, and adjusting valve core and the inner wall of pressure reducing channel form clearance seal cooperation, adjusting valve core is spaced apart and is provided with the step pressure reducing hole along the axis, and the aperture of each step pressure reducing hole gradually increases along the direction away from the connecting seat, limiting block is set up in the inside of the one end of pressure reducing pipe away from the connecting seat. Anti -back flow valve petal is slidably arranged between the limiting block and adjusting valve core, and the side of anti -back flow valve petal towards the limiting block is equipped with the sealing surface, and the sealing surface and the inner wall of pressure reducing pipe form separate type seal cooperation, adjusting mechanism is installed on adjusting valve core, is used for the axial feed of adjusting valve core: through the utility model, improve the diversity of pressure relief function, improve the treatment comfort.

Description

Technical Field

[0001] This utility model relates to the field of hyperbaric oxygen chamber technology, and in particular to a hyperbaric oxygen chamber decompression adjustment device. Background Technology

[0002] Hyperbaric oxygen chambers are key medical devices used to treat hypoxic diseases, decompression sickness, and repair tissue damage. They work by filling a sealed chamber with high-pressure oxygen, increasing the partial pressure of oxygen within the chamber, and promoting rapid dissolution of oxygen in the blood and tissue fluid, thereby improving the body's hypoxic state and achieving therapeutic goals. In hyperbaric oxygen therapy, the decompression phase is a crucial step to ensure treatment safety and effectiveness. The high-pressure gas inside the chamber must be gradually expelled to slowly reduce the pressure to normal. If the decompression rate is out of control, or if the pressure drops suddenly or fluctuates excessively, it can easily lead to discomfort such as ear barotrauma, dizziness, and nausea in patients. In severe cases, it can even cause decompression sickness, directly endangering the patient's safety.

[0003] Currently, most hyperbaric oxygen chamber decompression adjustment devices use a single-aperture decompression structure or a simple adjustment mechanism, which makes it difficult to achieve graded and stable decompression of high-pressure gas. This makes it impossible to adapt to the personalized decompression needs of different treatment conditions and patients, thus restricting the improvement of comfort in hyperbaric oxygen therapy. Utility Model Content

[0004] This invention provides a decompression adjustment device for a hyperbaric oxygen chamber, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A hyperbaric oxygen chamber decompression regulating device, comprising:

[0007] The connecting seat is fixedly connected to the wall of the hyperbaric oxygen chamber at one end and a decompression pipe is provided at the other end. The decompression pipe has a decompression channel along the axial direction inside.

[0008] The regulating valve core is slidably set in the pressure reducing channel of the pressure reducing pipe. The regulating valve core and the inner wall of the pressure reducing channel form a gap sealing fit, which constitutes the core component of the device for graded pressure reduction. The regulating valve core is provided with graded pressure reducing holes at intervals along the axis. The graded pressure reducing holes penetrate the inner and outer walls of the regulating valve core, and the diameter of each graded pressure reducing hole gradually increases in the direction away from the connecting seat.

[0009] The limiting block is located inside the end of the pressure reducing pipe away from the connector.

[0010] The anti-backflow valve disc is slidably disposed between the limit block and the regulating valve core. The side of the anti-backflow valve disc facing the limit block has a sealing surface, and the sealing surface forms a separate sealing fit with the inner wall of the pressure reducing pipe.

[0011] The regulating mechanism, installed on the regulating valve core, is used to regulate the axial feed of the valve core.

[0012] Furthermore, the regulatory body includes:

[0013] The adjusting rod is connected at one end to the end of the regulating valve core away from the connecting seat. The external thread of the adjusting rod is engaged with the threaded hole in the center of the limit block, and the axial feed of the regulating valve core is realized through thread transmission.

[0014] A positioning pin is set in a pre-set pin hole on the side wall of the pressure reducing pipe. Several positioning holes are spaced apart along the axial direction on the side wall of the adjusting rod. The end of the positioning pin is plugged into the positioning hole of the adjusting rod.

[0015] Furthermore, an end cap is provided at the end of the pressure reducing pipe away from the connector. The end cap is threadedly connected to the pressure reducing pipe. A guide hole is provided in the center of the end cap for the adjusting rod to pass through. A wear-resistant bushing is provided on the inner wall of the guide hole.

[0016] Furthermore, the anti-backflow valve disc is provided with an elastic support member, the other end of which abuts against the end face of the regulating valve core.

[0017] Furthermore, the two ends of the regulating valve core are provided with guide cone surfaces.

[0018] Furthermore, the limiting block is provided with an annular limiting platform on the side facing the anti-backflow valve disc, and the annular limiting platform is adapted to the sealing surface of the anti-backflow valve disc.

[0019] Furthermore, a main sealing ring is provided in the sealing groove of the mating surface between the connector and the pressure reducing pipe. The main sealing ring is made of fluororubber or silicone rubber.

[0020] Furthermore, the connecting seat is bolted to the wall of the hyperbaric oxygen chamber, and the connecting end face of the connecting seat is provided with a positioning boss, which is interference-fitted with the mounting hole of the hyperbaric oxygen chamber wall.

[0021] The following technical effects can be achieved through the technical solution of this utility model:

[0022] The connecting seat is firmly connected to the wall of the hyperbaric oxygen chamber, providing an installation base for the pressure reducing pipe. The pressure reducing channel of the pressure reducing pipe provides stable space for the sliding of the regulating valve core and gas flow. The gap between the regulating valve core and the pressure reducing channel is sealed, and combined with the staged pressure reducing holes with gradually increasing diameters away from the connecting seat, it achieves staged and stable pressure reduction of high-pressure gas, avoiding the impact of sudden pressure drops on the chamber environment, and improving the stability and safety of pressure reduction. The limit block provides installation limit for the anti-backflow valve disc. The anti-backflow valve disc effectively blocks the backflow of external gas into the hyperbaric oxygen chamber through a separate sealing fit between the sealing surface and the inner wall of the pressure reducing pipe, ensuring the stability of the gas pressure inside the chamber. The regulating mechanism controls the axial feed of the regulating valve core, realizing the adaptation and adjustment of the staged pressure reducing holes and the pressure reducing channel to meet different pressure reduction requirements and improve the reliability of the device. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the main structure of the decompression adjustment device in a hyperbaric oxygen chamber;

[0025] Figure 2 A cross-sectional schematic diagram of the decompression adjustment device in a hyperbaric oxygen chamber;

[0026] Figure 3 A schematic diagram of the internal structure of the decompression adjustment device in a hyperbaric oxygen chamber;

[0027] Figure 4 A schematic diagram of the regulating mechanism of the decompression regulating device in a hyperbaric oxygen chamber;

[0028] The following are labels in the attached diagram: 1. Connecting seat; 2. Pressure reducing pipe; 3. Adjusting valve core; 4. Limiting block; 5. Anti-backflow valve disc; 6. Adjusting mechanism; 61. Adjusting rod; 62. Positioning pin; 7. End cover; 8. Wear-resistant bushing; 9. Elastic support; 10. Annular limiting platform; 11. Main sealing ring; 12. Positioning boss. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] This application provides a decompression regulating device for a hyperbaric oxygen chamber, including:

[0032] The connecting seat 1 is fixedly connected to the wall of the hyperbaric oxygen chamber at one end and a pressure reducing pipe 2 is provided at the other end. The pressure reducing pipe 2 has a pressure reducing channel along the axial direction inside.

[0033] The regulating valve core 3 is slidably disposed in the pressure reducing channel of the pressure reducing pipe 2. The regulating valve core 3 and the inner wall of the pressure reducing channel form a gap sealing fit, constituting the core component of the device for graded pressure reduction. The regulating valve core 3 is provided with graded pressure reducing holes at intervals along the axis. The graded pressure reducing holes penetrate the inner and outer walls of the regulating valve core 3, and the diameter of each graded pressure reducing hole gradually increases in the direction away from the connecting seat 1.

[0034] Limiting block 4 is located inside the end of pressure reducing pipe 2 away from connecting seat 1.

[0035] The anti-backflow valve disc 5 is slidably disposed between the limit block 4 and the regulating valve core 3. The anti-backflow valve disc 5 has a sealing surface on the side facing the limit block 4, and the sealing surface forms a separate sealing fit with the inner wall of the pressure reducing pipe 2.

[0036] Adjustment mechanism 6, mounted on adjustment valve core 3, is used to adjust the axial feed of valve core 3;

[0037] Through the technical solution of this utility model, the connecting seat 1 is firmly connected to the wall of the hyperbaric oxygen chamber, providing an installation foundation for the pressure reducing pipe 2. The pressure reducing channel of the pressure reducing pipe 2 provides a stable space for the sliding of the regulating valve core 3 and the gas flow. The gap between the regulating valve core 3 and the pressure reducing channel is sealed. Combined with the staged pressure reducing holes with gradually increasing diameters along the direction away from the connecting seat 1, the high-pressure gas is reduced in stages and smoothly, avoiding the impact of sudden pressure drops on the chamber environment and improving the stability and safety of pressure reduction. The limiting block 4 provides installation limit for the anti-backflow valve disc 5. The anti-backflow valve disc 5 effectively blocks the backflow of external gas into the hyperbaric oxygen chamber through the separation sealing cooperation between the sealing surface and the inner wall of the pressure reducing pipe 2, ensuring the stability of the gas pressure inside the chamber. The regulating mechanism 6 controls the axial feed of the regulating valve core 3 to realize the adaptation and adjustment of the staged pressure reducing holes and the pressure reducing channel, meet different pressure reduction requirements, and improve the reliability of the device.

[0038] During use, the adjustment mechanism 6 includes:

[0039] The adjusting rod 61 is connected at one end to the end of the adjusting valve core 3 away from the connecting seat 1. The external thread of the adjusting rod is engaged with the threaded hole in the center of the limiting block 4, and the axial feed of the adjusting valve core 3 is realized through thread transmission.

[0040] The positioning pin 62 is set in the preset pin hole on the side wall of the pressure reducing pipe 2. The side wall of the adjusting rod 61 is provided with a number of positioning holes spaced apart along the axial direction. The end of the positioning pin 62 is plugged into the positioning hole of the adjusting rod 61.

[0041] Through the technical solution of this utility model, one end of the adjusting rod 61 is connected to the adjusting valve core 3. The external thread of the adjusting rod and the threaded hole in the center of the limiting block 4 cooperate to form a threaded transmission, which controls the axial feed of the adjusting valve core 3, so that the stage pressure reducing hole and the pressure reducing channel of the pressure reducing pipe 2 are adapted to meet the pressure reducing requirements under different working conditions, improve the adjustment accuracy and operation convenience. The positioning pin 62 is connected to the positioning hole of the adjusting rod 61 through the preset pin hole on the side wall of the pressure reducing pipe 2. After the adjusting valve core 3 is adjusted to the position, its position is quickly locked to avoid the adjustment rod 61 from shifting due to air pressure fluctuations during the pressure reducing process, thus ensuring the stability of stage pressure reducing.

[0042] In the above embodiment, the end of the pressure reducing pipe 2 away from the connecting seat 1 is provided with an end cap 7. The end cap 7 is threadedly connected to the pressure reducing pipe 2, and an exhaust pipe is provided on the end cap. The exhaust pipe is connected to the hospital's centralized exhaust pipe. The center of the end cap 7 is provided with a guide hole for the adjusting rod 61 to pass through. The inner wall of the guide hole is provided with a wear-resistant bushing 8. The wear-resistant bushing 8 is made of fluororubber or nylon.

[0043] Through the technical solution of this utility model, the threaded connection between the end cap 7 and the pressure reducing pipe 2 is convenient for disassembly and assembly, preventing gas leakage and impurities from entering, ensuring the cleanliness and sealing performance of the device. The guide hole in the center of the end cap 7 provides guidance for the adjusting rod 61, preventing the adjusting rod 61 from deviating when it is axially fed. The wear-resistant bushing 8 on the inner wall of the guide hole reduces the direct friction between the adjusting rod 61 and the end cap 7, reducing component wear, while ensuring the sealing of the connection between the adjusting rod 61 and the wear-resistant bushing 8.

[0044] As a preferred embodiment of the above embodiment, the anti-backflow valve disc 5 is provided with an elastic support 9, and the other end of the elastic support 9 abuts against the end face of the regulating valve core 3.

[0045] Through the technical solution of this utility model, one end of the elastic support 9 is connected to the anti-backflow valve disc 5 and the other end abuts against the end face of the regulating valve core 3, providing a continuous elastic force for the anti-backflow valve disc 5, pushing its sealing surface to fit tightly against the inner wall of the pressure reducing pipe 2, enhancing the reliability of the separate seal, and at the same time buffering the impact of the anti-backflow valve disc 5 under gas pressure, avoiding hard collision between it and the regulating valve core 3, and reducing component wear.

[0046] During use, the two ends of the regulating valve core 3 are provided with guide cone surfaces;

[0047] Through the technical solution of this utility model, the guide cone surface guides the regulating valve core 3 to slide smoothly in the pressure reducing channel of the pressure reducing pipe 2, avoiding jamming with the inner wall of the channel during axial feeding, and improving the smoothness of the adjustment operation.

[0048] In the above embodiment, the limiting block 4 is provided with an annular limiting platform 10 on the side facing the anti-backflow valve disc 5, and the annular limiting platform 10 is adapted to the sealing surface of the anti-backflow valve disc 5.

[0049] Through the technical solution of this utility model, the annular limiting platform 10 limits the movement of the anti-backflow valve disc 5, preventing it from getting too close to the limiting block 4 or from radially shifting, ensuring that the sealing surface is always aligned with and tightly fitted to the inner wall of the pressure reducing pipe 2, thereby improving the anti-backflow effect of the split seal.

[0050] As a preferred embodiment of the above, a main sealing ring 11 is provided in the sealing groove of the mating surface between the connecting seat 1 and the pressure reducing pipe 2. The main sealing ring 11 is made of fluororubber or silicone rubber.

[0051] Through the technical solution of this utility model, the main sealing ring 11 forms a sealing barrier by closely fitting with the contact surfaces of the connecting seat 1 and the pressure reducing pipe 2, effectively blocking the leakage of high-pressure gas from the docking gap, ensuring the stability of the gas pressure inside the hyperbaric oxygen chamber, and strengthening the overall sealing performance in conjunction with the device's graded pressure reduction and anti-backflow structure.

[0052] During use, the connecting seat 1 is bolted to the wall of the hyperbaric oxygen chamber. The connecting end face of the connecting seat 1 is provided with a positioning boss 12, which is interference-fitted with the mounting hole of the hyperbaric oxygen chamber wall.

[0053] Through the technical solution of this utility model, the connecting seat 1 is bolted to the wall of the hyperbaric oxygen chamber, which is convenient to disassemble and assemble and the connection is stable. The positioning boss 12 is interference-fitted with the mounting hole of the hyperbaric oxygen chamber wall, which limits the installation position of the connecting seat 1 and prevents it from radially shifting.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hyperbaric oxygen chamber decompression regulating device, characterized in that, include: The connecting seat (1) is fixedly connected to the wall of the hyperbaric oxygen chamber at one end and a pressure reducing pipe (2) is provided at the other end. The pressure reducing pipe (2) has a pressure reducing channel along the axial direction inside. The regulating valve core (3) is slidably disposed in the pressure reducing channel of the pressure reducing pipe (2). The regulating valve core (3) forms a gap sealing fit with the inner wall of the pressure reducing channel. The regulating valve core (3) is provided with graded pressure reducing holes at intervals along the axis. The graded pressure reducing holes penetrate the inner and outer walls of the regulating valve core (3), and the diameter of each graded pressure reducing hole gradually increases in the direction away from the connecting seat (1). The limiting block (4) is disposed inside the end of the pressure reducing pipe (2) away from the connecting seat (1); The anti-backflow valve disc (5) is slidably disposed between the limiting block (4) and the regulating valve core (3). The anti-backflow valve disc (5) has a sealing surface on the side facing the limiting block (4), and the sealing surface forms a separate sealing fit with the inner wall of the pressure reducing pipe (2). An adjustment mechanism (6) is installed on the adjustment valve core (3) and is used for the axial feeding of the adjustment valve core (3).

2. The hyperbaric oxygen chamber decompression regulating device according to claim 1, characterized in that, The adjustment mechanism (6) includes: One end of the adjusting rod (61) is connected to the end of the adjusting valve core (3) away from the connecting seat (1), and the external thread of the adjusting rod (61) is engaged with the threaded hole in the center of the limiting block (4). A positioning pin (62) is set in a preset pin hole on the side wall of the pressure reducing pipe (2). The side wall of the adjusting rod (61) is provided with a plurality of positioning holes spaced apart along the axial direction. The end of the positioning pin (62) is plugged into the positioning hole of the adjusting rod (61).

3. The hyperbaric oxygen chamber decompression regulating device according to claim 2, characterized in that, The pressure reducing pipe (2) has an end cap (7) at one end away from the connecting seat (1). The end cap (7) is threadedly connected to the pressure reducing pipe (2). The end cap (7) has a guide hole in the center for the adjusting rod (61) to pass through. The inner wall of the guide hole is provided with a wear-resistant bushing (8).

4. The hyperbaric oxygen chamber decompression regulating device according to claim 1, characterized in that, The anti-backflow valve disc (5) is provided with an elastic support (9), and the other end of the elastic support (9) abuts against the end face of the regulating valve core (3).

5. The hyperbaric oxygen chamber decompression regulating device according to claim 1, characterized in that, The regulating valve core (3) has guide cone surfaces at both ends.

6. The hyperbaric oxygen chamber decompression regulating device according to claim 1, characterized in that, The limiting block (4) is provided with an annular limiting platform (10) on the side facing the anti-backflow valve disc (5), and the annular limiting platform (10) is adapted to the sealing surface of the anti-backflow valve disc (5).

7. The hyperbaric oxygen chamber decompression regulating device according to claim 1, characterized in that, A main sealing ring (11) is provided in the sealing groove of the mating surface between the connecting seat (1) and the pressure reducing pipe (2).

8. The hyperbaric oxygen chamber decompression regulating device according to claim 1, characterized in that, The connecting seat (1) is bolted to the wall of the hyperbaric oxygen chamber. The connecting end face of the connecting seat (1) is provided with a positioning boss (12), and the positioning boss (12) is interference-fitted with the mounting hole of the hyperbaric oxygen chamber wall.

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