Micro hyperbaric oxygen chamber and chamber door sealing device thereof

Abstract

The utility model discloses a micro hyperbaric oxygen chamber and a chamber door sealing device thereof, and relates to the technical field of micro hyperbaric oxygen chambers, the chamber door sealing device is applied to the micro hyperbaric oxygen chamber, the chamber door sealing device comprises a sealing ring, one side of the sealing ring is provided with a connecting piece used for being connected with a chamber body door frame of the micro hyperbaric oxygen chamber, and the other side of the sealing ring is of an annular suction cup structure; the annular suction cup structure is used for being adsorbed to a cabin door of the micro-hyperbaric oxygen cabin. One end of the air pipe communicates with the annular suction cup structure, the other end of the air pipe penetrates through the cabin body to communicate with the outside, and a control valve capable of being opened and closed is arranged on the air pipe. By means of the device, normal pressurizing work of the micro hyperbaric oxygen chamber operated by one person can be achieved, the chamber door can be smoothly opened, and the chamber door is tightly attached to the chamber body.

Description

Technical Field

[0001] The utility model relates to the technical field of micro high-pressure oxygen chambers, and more specifically, to a hatch sealing device. In addition, it also relates to a micro high-pressure oxygen chamber including the above hatch sealing device. Background Art

[0002] In the prior art, a micro high-pressure oxygen chamber is a device that uses a booster pump to inject the air outside the cabin body 02 into the cabin to form a micro high-pressure environment with a certain pressure, and then uses a molecular sieve to separate the oxygen in the air and inject it into the inside of the cabin body 02 to form a rich oxygen environment with a certain pressure. The pressure inside the micro high-pressure oxygen chamber is initially zero. The sealing method is to add a sealing ring 03 at the door of the hatch 01, and the structure is as Figure 1 shown. Then, a staff member tightens the hatch 01 outside the door. After the pressure inside the cabin rises to a certain level, at this time, the hatch 01 is tightly pressed against the cabin body 02 according to the pressure difference between the inside and outside of the cabin body 02 (i.e., inside and outside the cabin), and then the staff member releases the hand.

[0003] However, the mainstream sealing methods on the market currently, as Figure 1 shown, have the following disadvantages:

[0004] 1. It is relatively labor-intensive. That is, one staff member is required for pressurizing the cabin body 02, and another staff member is required for tightening the hatch 01. Because an additional staff member is always needed to tighten the hatch 01 to give the sealing ring 03 a pre-tightening force during the initial pressure build-up inside the cabin. Only when the pressure inside the cabin is sufficient to tightly press the hatch 01 against the door frame can this staff member be released.

[0005] 2. Tightening is relatively laborious. Each time a pre-tightening force is given to the hatch 01, the staff member needs to apply a certain pressure to the hatch 01 to press the sealing ring 03 until it deforms in place. If the force is too small, the sealing ring 03 will not deform enough, resulting in poor sealing between the hatch 01 and the cabin body 02, slow pressure build-up inside the cabin, or even inability to build pressure.

[0006] In summary, how to achieve normal pressure build-up operation of a micro high-pressure oxygen chamber by one person, and smoothly open the hatch and make the hatch closely adhere to the cabin body is an urgent problem to be solved by those skilled in the art currently. Summary of the Utility Model

[0007] In view of this, an object of the utility model is to provide a hatch sealing device, which can achieve normal pressure build-up operation of a micro high-pressure oxygen chamber by one person, and can smoothly open the hatch and make the hatch closely adhere to the cabin body.

[0008] Another object of the utility model is to provide a micro high-pressure oxygen chamber including the above hatch sealing device.

[0009] To achieve the above object, the utility model provides the following technical solutions:

[0010] A hatch sealing device is applied to a micro-high-pressure oxygen chamber, including:

[0011] A sealing ring, on one side of which there is a connecting piece for connecting with the cabin door frame of the micro-high-pressure oxygen chamber, and on the other side of the sealing ring is an annular suction cup structure for adsorbing on the cabin door of the micro-high-pressure oxygen chamber;

[0012] An air pipe, one end of which is communicated with the annular suction cup structure, the other end of the air pipe passes through the cabin body and is communicated with the outside, and an openable and closable control valve is arranged on the air pipe.

[0013] In one embodiment, the other end of the air pipe passes through the cabin body and is connected with a quick connector, the quick connector is located outside the cabin of the micro-high-pressure oxygen chamber, one end of a first pipeline and one end of a second pipeline are both connected with the quick connector, the other end of the first pipeline passes through the cabin body and is inserted into the cabin of the micro-high-pressure oxygen chamber, and the other end of the second pipeline is communicated with the outside of the cabin;

[0014] The control valve includes a first valve arranged on the first pipeline and a second valve arranged on the second pipeline, the first valve is located between the quick connector and the inside of the cabin, and the second valve is located between the quick connector and the outside of the cabin.

[0015] In one embodiment, both the first valve and the second valve are manual ball valves.

[0016] In one embodiment, the quick connector includes a tee joint, the air pipe is an L-shaped pipe, the vertical section of the L-shaped pipe passes through the cabin body and is communicated with the annular suction cup structure, the horizontal section of the L-shaped pipe is hermetically communicated with the common end of the tee joint, the first end of the tee joint is hermetically communicated with the first pipeline, and the second end of the tee joint is hermetically communicated with the second pipeline.

[0017] In one embodiment, the connecting piece includes an adhesive.

[0018] A micro-high-pressure oxygen chamber includes the hatch sealing device according to any one of the above.

[0019] In one embodiment, it further includes a cabin body and a cabin door, one side of the sealing ring of the hatch sealing device is connected with the door frame of the cabin body, and the other side of the sealing ring adsorbs on the cabin door.

[0020] In one embodiment, the cabin door is connected with the cabin body through a hinge so that the cabin door rotates along the hinge.

[0021] When using the hatch sealing device provided by the present utility model, the hatch of the micro-high pressure oxygen chamber can rotate relative to the chamber body. First, the connecting piece can be installed on the door frame of the chamber body of the micro-high pressure oxygen chamber. Then, one end of the air pipe can be connected to the annular suction cup structure of the sealing ring, and the other end of the air pipe can pass through the chamber body and communicate with the outside. Finally, an openable and closable control valve can be provided on the air pipe. By controlling the opening and closing of the control valve, the air pipe can be closed or communicated with the outside, thereby facilitating the opening and closing operation of the hatch.

[0022] Before and during the normal operation of the device, the control valve is in the closed state. The hatch of the micro-high pressure oxygen chamber is tightly adsorbed to the chamber body through the annular suction cup structure of the sealing ring (which has good adsorption force), forming an automatic locking operation of the hatch of the micro-high pressure oxygen chamber. After the hatch and the annular suction cup structure are adsorbed, then pressurize the chamber. In the early stage of pressurizing the chamber, the operator only needs to gently pull the hatch to discharge a part of the air in the annular suction cup structure, and a negative pressure space can be formed to achieve the automatic adsorption operation of the hatch. There is no need for an operator to always pull the hatch tightly during the early stage of the chamber pressure increase. Therefore, the device can achieve the operation of completing the entire work process with only one operator.

[0023] Moreover, the annular suction cup structure and the hatch form a sealed negative pressure space. Relying on the pressure difference between this negative pressure space and the external atmospheric pressure, the annular suction cup structure and the hatch are closely attached together, and this suction force is sufficient to seal the chamber body. Further, as the chamber pressure increases, this suction force becomes greater, and the sealing effect between the chamber body and the hatch is better. When opening the door, wait until the equipment pressure drops to normal atmospheric pressure, open the control valve, so that the inside of the annular suction cup structure communicates with the outside atmosphere. At this time, the suction force of the annular suction cup structure is eliminated to destroy the negative pressure space and weaken the sealing effect between the chamber body and the hatch, enabling the operator to open the hatch relatively easily.

[0024] In summary, the hatch sealing device provided by the present utility model can realize the normal pressure boosting work of the micro-high pressure oxygen chamber by one person, and can smoothly open the hatch and make the hatch closely adhere to the chamber body.

[0025] In addition, the present utility model also provides a micro-high pressure oxygen chamber including the above-mentioned hatch sealing device. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0027] Figure 1Schematic structural diagram of the hatch seal in the prior art;

[0028] Figure 2 Schematic diagram of the use of the hatch seal device provided by the present invention on a micro-high pressure oxygen chamber;

[0029] Figure 3 Front view of the sealing ring;

[0030] Figure 4 Cross-sectional view of the sealing ring;

[0031] Figure 5 Cross-sectional view of the sealing ring provided with an air pipe.

[0032] Reference numerals:

[0033] 01 - hatch door; 02 - chamber body; 03 - sealing ring;

[0034] 1 - sealing ring; 11 - connecting member; 12 - annular suction cup structure; 2 - air pipe; 21 - first pipeline; 22 - second pipeline; 23 - quick connector; 3 - control valve; 31 - first valve; 32 - second valve; 4 - chamber body; 5 - hatch door; 6 - hinge. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] The core of the present invention is to provide a hatch seal device, which can realize the normal pressure boosting work of a micro-high pressure oxygen chamber by one person, and can smoothly open the hatch door and make the hatch door closely adhere to the chamber body. Another core of the present invention is to provide a micro-high pressure oxygen chamber including the above-mentioned hatch seal device.

[0037] Please refer to Figure 2 , Figure 2 Schematic diagram of the use of the hatch seal device provided by the present invention on a micro-high pressure oxygen chamber; Figure 3 Front view of the sealing ring; Figure 4 Cross-sectional view of the sealing ring; Figure 5 Cross-sectional view of the sealing ring provided with an air pipe.

[0038] This specific embodiment provides a hatch seal device, which is applied to a micro-high pressure oxygen chamber and includes:

[0039] Sealing ring 1, on one side of which there is a connecting piece 11 for connecting with the door frame of the cabin body 4 of the micro-high pressure oxygen chamber. On the other side of the sealing ring 1 is an annular suction cup structure 12, and the annular suction cup structure 12 is used for adsorbing on the cabin door 5 of the micro-high pressure oxygen chamber;

[0040] Air pipe 2, one end of which is communicated with the annular suction cup structure 12, and the other end of the air pipe 2 passes through the cabin body 4 and is communicated with the outside, and an openable and closable control valve 3 is arranged on the air pipe 2.

[0041] It should be noted that the annular suction cup structure 12 may mean that the sealing ring 1 is a ring structure, and the side of the ring structure for contacting the cabin door 5 is a suction cup structure. The suction cup structure of the present application is different from an ordinary round suction cup. The front and rear ends of the suction cup structure of the present application are sequentially communicated in the circumferential direction to form a ring structure, and there is a height difference between the left and right ends of the suction cup structure and the bottom plate of the suction cup structure, so that there is a negative pressure space after the suction cup structure adsorbs to the cabin door 5 (that is, there is a height difference between the bottom plate of the suction cup structure and the cabin door 5), rather than the bottom plate of the suction cup structure and the cabin door 5 being distributed in a fitting manner. The cross-section of the annular suction cup structure 12 is as Figure 4 、 Figure 5 shown.

[0042] In the actual application process, according to the actual situation and actual needs, the shapes, structures, dimensions, positions, etc. of the sealing ring 1, the connecting piece 11, the annular suction cup structure 12, the air pipe 2 and the control valve 3 can be determined.

[0043] When using the cabin door sealing device provided by the present utility model, the cabin door 5 of the micro-high pressure oxygen chamber can rotate relative to the cabin body 4. First, the connecting piece 11 can be installed on the door frame of the cabin body 4 of the micro-high pressure oxygen chamber. Then, one end of the air pipe 2 can be communicated with the annular suction cup structure 12 of the sealing ring 1, and the other end of the air pipe 2 can pass through the cabin body 4 and be communicated with the outside. Finally, an openable and closable control valve 3 can be arranged on the air pipe 2. By controlling the opening and closing of the control valve 3, the air pipe 2 can be closed or the air pipe 2 can be communicated with the outside, so as to facilitate the opening and closing operation of the cabin door 5.

[0044] Before and during the normal operation of the device, the control valve 3 is in a closed state. The cabin door 5 of the micro-high pressure oxygen chamber is tightly adsorbed to the cabin body 4 through the annular suction cup structure 12 of the sealing ring 1 (which has good adsorption force), forming an automatic locking operation of the cabin door 5 of the micro-high pressure oxygen chamber. After the cabin door 5 and the annular suction cup structure 12 are adsorbed, then pressurize the cabin. In the early stage of pressurizing the cabin, only the operator needs to gently pull the cabin door 5 to discharge a part of the air in the annular suction cup structure 12, and a negative pressure space can be formed to realize the automatic adsorption operation of the cabin door 5. There is no need for an operator to always tightly pull the cabin door 5 during the early stage of the cabin pressure increase. Therefore, the device can realize that only one operator is required to complete the operation of the entire work process.

[0045] Moreover, the annular suction cup structure 12 and the hatch 5 form a sealed negative pressure space. Relying on the pressure difference between this negative pressure space and the external atmospheric pressure, the annular suction cup structure 12 is closely attached to the hatch 5, and the suction force is sufficient to seal the cabin body 4. Further, as the pressure inside the cabin increases, the suction force becomes greater, and the sealing effect between the cabin body 4 and the hatch 5 is better. When opening the door, wait for the equipment pressure to drop to normal atmospheric pressure, open the control valve 3, so that the inside of the annular suction cup structure 12 is connected to the external atmosphere. At this time, the suction force of the annular suction cup structure 12 is eliminated to destroy the negative pressure space and weaken the sealing effect between the cabin body 4 and the hatch 5, enabling the operator to open the hatch 5 relatively easily.

[0046] In summary, the hatch sealing device provided by the present utility model can realize the normal pressure boosting work of the micro-high pressure oxygen cabin by one person, and can smoothly open the hatch 5 and make the hatch 5 closely attached to the cabin body 4.

[0047] In one embodiment, as Figure 2 shown, the other end of the air pipe 2 passes through the cabin body 4 and is connected to the quick connector 23. The quick connector 23 is located outside the micro-high pressure oxygen cabin (i.e., Figure 2 below one side of the hatch 5 in the middle cabin), one end of the first pipeline 21 and one end of the second pipeline 22 are both connected to the quick connector 23, and the other end of the first pipeline 21 passes through the cabin body 4 and is inserted into the cabin of the micro-high pressure oxygen cabin (i.e., Figure 2 above one side of the hatch 5 in the middle cabin), and the other end of the second pipeline 22 is communicated with the outside of the cabin; the control valve 3 includes a first valve 31 provided on the first pipeline 21 and a second valve 32 provided on the second pipeline 22. The first valve 31 is located between the quick connector 23 and the inside of the cabin, and the second valve 32 is located between the quick connector 23 and the outside of the cabin.

[0048] That is, the air pipe 2 carried by the sealing ring 1 is connected to the quick connector 23, and the quick connector 23 is connected to the first valve 31 inside the cabin and the second valve 32 outside the cabin through the first pipeline 21 and the second pipeline 22 respectively, thereby realizing the controllable opening and closing of the channel connecting the sealed space formed by the sealing ring 1 and the hatch 5 to the atmosphere inside or outside the cabin. When the internal and external pressures of the cabin body 4 are the same, if the operator inside the cabin needs to open the hatch 5, the operator only needs to open the first valve 31 inside the cabin to destroy the negative pressure space formed by the sealing ring 1 and the hatch 5; if the operator outside the cabin needs to open the hatch 5, the operator only needs to open the second valve 32 outside the cabin to destroy the negative pressure space formed by the sealing ring 1 and the hatch 5, and at this time the hatch 5 can be gently opened.

[0049] In one embodiment, both the first valve 31 and the second valve 32 are manual ball valves, which are convenient for the operator to manually control the opening and closing of the ball valves, and the cost of the ball valves is relatively low, which is beneficial to reducing the cost of the device.

[0050] It should be noted that both the ball valves opened by the handle and the turbine are manual ball valves. The closing process of the manual ball valve includes: 1. When closing, rotate the handwheel clockwise, and the valve stem starts to descend and the ball leaves the valve seat and starts to rotate; 2. Continue to rotate the handwheel, and the valve stem is affected by the guide pin embedded in the spiral groove on it, causing the valve stem and the ball to rotate 90° simultaneously; 3. When it is about to close, the ball has rotated 90° without contacting the valve seat; 4. In the last few turns of the handwheel rotation, the angular plane at the bottom of the valve stem mechanically wedges and presses the ball, making it tightly press on the valve seat to achieve complete sealing.

[0051] Moreover, the structural features of the manual ball valve include: 1. There is no friction during opening and closing, completely solving the problem that the sealing of traditional valves is affected by the mutual friction between the sealing surfaces; 2. The top-mounted structure allows for direct on-line inspection and maintenance of the valves installed on the pipeline, effectively reducing equipment shutdown and lowering costs; 3. The single-valve seat design eliminates the problem that the medium in the middle cavity of the valve affects the use safety due to abnormal pressure rise; 4. The low-torque design, that is, the valve stem with a special structure design only requires a small handgrip to easily open and close the valve; 5. The wedge-shaped sealing structure, that is, the valve is sealed by the mechanical force provided by the valve stem to wedge the ball onto the valve seat, so that the sealing performance of the valve is not affected by the change of pipeline pressure difference, and reliable sealing performance is guaranteed under various working conditions.

[0052] It should be supplemented that in addition to the manual control method to control the opening and closing of the first valve 31 and the second valve 32, the opening and closing of the first valve 31 and the second valve 32 can also be controlled by an automatic control method. At this time, the first valve 31 and the second valve 32 are both electric ball valves. For example, recognition devices for face recognition or acquisition devices for signal acquisition can be provided both inside and outside the cabin to determine whether there is someone inside or outside the cabin who needs to open the cabin door 5, and the first valve 31 and the second valve 32 are set as electric valves. The recognition device or acquisition device, as well as the electric valves, are all connected to the control device.

[0053] When the internal and external pressures of the cabin body 4 are the same, if the operator inside the cabin needs to open the cabin door 5, the recognition device or acquisition device inside the cabin obtains this information and transmits it to the control device, and the control device controls the first valve 31 inside the cabin to open, destroying the negative pressure space formed by the sealing ring 1 and the cabin door 5; if the operator outside the cabin needs to open the cabin door 5, the recognition device or acquisition device outside the cabin obtains this information and transmits it to the control device, and the control device controls the second valve 32 outside the cabin to open, destroying the negative pressure space formed by the sealing ring 1 and the cabin door 5. At this time, the cabin door 5 can be gently opened.

[0054] In one embodiment, the quick-connect fitting 23 includes a tee joint. The air pipe 2 is an L-shaped pipe. The vertical section of the L-shaped pipe passes through the cabin body 4 and is communicated with the annular suction cup structure 12. The horizontal section of the L-shaped pipe is hermetically communicated with the common end of the tee joint. The first end of the tee joint is hermetically communicated with the first pipeline 21, and the second end of the tee joint is hermetically communicated with the second pipeline 22. Herein, hermetically communicated means that a sealing ring is provided at the connection of the end of the tee joint and the pipeline to avoid gas leakage.

[0055] That is, the air pipe 2 carried by the sealing ring 1 is connected to the tee joint, and the tee joint is respectively connected to the first valve 31 inside the cabin and the second valve 32 outside the cabin through the first pipeline 21 and the second pipeline 22. By controlling the opening and closing of the ball valve inside or outside the cabin, the closed space formed by the sealing ring 1 and the cabin door 5 can be connected to the atmosphere inside or outside the cabin.

[0056] In one embodiment, the connecting member 11 includes an adhesive. That is, the sealing ring 1 is distributed in an oval shape. The back surface of the sealing ring 1 is adhered with 3M adhesive. The front surface of the sealing ring 1 has an annular suction cup structure 12. There is an air pipe 2 on the sealing ring 1, and this air pipe 2 is connected to the annular suction cup structure 12. The tail end of the air pipe 2 is a free end with a certain length and can be connected to the quick-connect fitting 23 or other connecting members 11, so as to realize the connection between the closed space after the annular suction cup structure 12 sucks tightly the cabin door 5 and the outside atmosphere. Figure 3 is the front view of the sealing ring 1, Figure 4 、 Figure 5 is the cross-sectional view of the sealing ring 1, Figure 4 、 Figure 5 In, the back surface of the sealing ring 1 is a plane, and this plane is provided with 3M adhesive. The front surface of the sealing ring 1 is an entire annular suction cup structure 12 for sucking tightly the cabin door 5. An air pipe 2 is led out from the back surface of the sealing ring 1, and the air pipe 2 is used for air inflation and deflation to realize the easy opening of the cabin door 5 after pressure relief.

[0057] It should be noted that the adhesive is an adhesive coated on the back surface of the material, which can firmly bond the material to various surfaces. The uses of the adhesive are very extensive. Because of its convenience in use, the advertising picture can play a good role in publicity and create an atmosphere, so it is often used in advertisements in places such as shopping malls, schools, hospitals, hotels, etc.; it also includes scenarios in work and life, such as decoration, event planning, etc. In life, we often come into contact with items with self-adhesive, such as stickers, tapes, band-aids, etc. are all adhesives; in the advertising industry, the adhesive belongs to the roll products of the sandwich structure, that is, the sandwich of the two layers of materials is glue, and the bottom film can be torn off for normal use.

[0058] In addition to the above-mentioned cabin door sealing device, the present utility model also provides a hyperbaric oxygen chamber including the cabin door sealing device disclosed in the above embodiment. For the structures of other parts of the hyperbaric oxygen chamber, reference may be made to the prior art and will not be elaborated herein.

[0059] In one embodiment, as Figure 2 shown, it further includes a cabin body 4 and a cabin door 5. One side of the sealing ring 1 of the cabin door sealing device is connected to the doorframe of the cabin body 4, and the other side of the sealing ring 1 is adsorbed on the cabin door 5.

[0060] In one embodiment, the cabin door 5 is connected to the cabin body 4 through a hinge 6, so that the cabin door 5 makes a rotational movement along the hinge 6. That is, the cabin door 5 is connected to the cabin body 4 through the hinge 6, and the cabin door 5 can make a rotational movement along the hinge 6. The back of the sealing ring 1 is pasted to the inner wall doorframe inside the cabin through 3M adhesive. The air pipe 2 of the sealing ring 1 is connected to a tee joint, and the tee joint is respectively connected to a ball valve inside the cabin through a first pipeline 21 and to a ball valve outside the cabin through a second pipeline 22, respectively forming controllable gas channels from the sealing ring 1 to inside the cabin and from the sealing ring 1 to outside the cabin.

[0061] Before and during the normal operation of the device, the ball valves inside and outside the cabin are both in the closed state. The oxygen cabin door 5 is tightly adsorbed to the cabin door 5 through the sucker structure of the sealing strip, forming the automatic locking of the cabin door 5 of the micro-high pressure oxygen cabin. After the adsorption of the cabin door 5 is completed, the cabin is pressurized again. When opening the door, wait until the pressure of the equipment drops to normal atmospheric pressure, and then open the ball valve inside the cabin or the ball valve outside the cabin, so that the inside of the annular sucker structure 12 of the sealing ring 1 is connected to the outside atmospheric pressure. At this time, the suction force of the annular sucker structure 12 is eliminated, and the cabin door 5 can be gently and normally opened.

[0062] During this operation process, the operator only needs to pull the cabin door 5 to realize the self-locking operation of the cabin door 5, without the need for an operator to always tightly hold the cabin door 5 at the early stage of the cabin pressure increase process, so that only one operator can complete the operation of the entire work process. That is, at the early stage of pressurizing the cabin, the operator only needs to gently pull the cabin door 5 to discharge a part of the air inside the annular sucker structure 12 to form a negative pressure space, so as to realize the automatic adsorption of the cabin door 5, and there is no need for the operator to always tightly hold the cabin door 5 at the early stage of the cabin pressure increase.

[0063] It should be noted that for the first valve 31 and the second valve 32, the first pipeline 21 and the second pipeline 22 mentioned in the present utility model, among them, the first and the second are only for distinguishing different positions, and there is no order of priority.

[0064] In addition, it should also be noted that the orientation or positional relationship indicated by "inside and outside", "front, back, left and right" of the present utility model is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of simplified description and understanding, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be construed as a limitation to the present utility model.

[0065] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. Any combination of all the embodiments provided by the present utility model falls within the protection scope of the present utility model and will not be elaborated herein.

[0066] The above has introduced in detail the micro-hyperbaric oxygen chamber and its door sealing device provided by the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A door sealing device, applied to a micro-hyperbaric oxygen chamber, characterized in that: include: A sealing ring (1), one side of which is provided with a connecting piece (11) for connecting to a door frame of a chamber body (4) of the micro-hyperbaric oxygen chamber, and the other side of the sealing ring (1) is an annular suction cup structure (12), the annular suction cup structure (12) being used to be adsorbed on the chamber door (5) of the micro-hyperbaric oxygen chamber; An air pipe (2) has one end connected to the annular suction cup structure (12), and the other end of the air pipe (2) passes through the cabin (4) to be connected to the outside, and an openable and closable control valve (3) is provided on the air pipe (2).

2. The hatch door sealing device according to claim 1, characterized in that: The other end of the air pipe (2) passes through the cabin body (4) and is connected to a quick connector (23); the quick connector (23) is located outside the micro-hyperbaric oxygen chamber; one end of the first pipeline (21) and one end of the second pipeline (22) are both connected to the quick connector (23); the other end of the first pipeline (21) passes through the cabin body (4) and is inserted into the cabin of the micro-hyperbaric oxygen chamber; and the other end of the second pipeline (22) is connected to the outside of the cabin; The control valve (3) comprises a first valve (31) provided on the first pipeline (21) and a second valve (32) provided on the second pipeline (22), wherein the first valve (31) is located between the quick-connect connector (23) and the interior of the cabin, and the second valve (32) is located between the quick-connect connector (23) and the exterior of the cabin.

3. The hatch door sealing device according to claim 2, characterized in that: The first valve (31) and the second valve (32) are both manual ball valves.

4. The hatch door sealing device according to claim 2, characterized in that: The quick-connect connector (23) comprises a three-way connector, the air pipe (2) is an L-shaped tube, the vertical section of the L-shaped tube passes through the cabin (4) and is connected to the annular suction cup structure (12), the horizontal section of the L-shaped tube is sealed and connected to the common end of the three-way connector, the first end of the three-way connector is sealed and connected to the first pipeline (21), and the second end of the three-way connector is sealed and connected to the second pipeline (22).

5. The hatch door sealing device according to any one of claims 1 to 4, characterized in that: The connecting piece (11) comprises adhesive backing.

6. A micro-hyperbaric oxygen chamber, characterized in that: A hatch door sealing device comprising any one of claims 1 to 5 above.

7. The micro-hyperbaric oxygen chamber according to claim 6, characterized in that: It also comprises a cabin body (4) and a cabin door (5), wherein one side of the sealing ring (1) of the cabin door sealing device is connected to the door frame of the cabin body (4), and the other side of the sealing ring (1) is adsorbed on the cabin door (5).

8. The micro-hyperbaric oxygen chamber according to claim 7, characterized in that: The cabin door (5) is connected to the cabin body (4) via a hinge (6) so that the cabin door (5) can perform rotational movement along the hinge (6).

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