Visual window structure of oxygen cabin and oxygen cabin

Abstract

The utility model relates to a visual window structure of oxygen cabin and oxygen cabin, belongs to oxygen cabin technical field, the visual window structure includes the window body, the window body includes base body, inner flange, transparent plate, middle connecting plate and outer decorative edge, base body is cylindrical structure, inner flange and outer decorative edge are both annular structure, outer decorative edge is connected with base body outer end, transparent plate is connected with base body outer end. The inner flange and the transparent plate are arranged at the inner end of the base body, and a cabin annular positioning groove is formed between the inner flange and the outer decorative edge. A middle connecting plate is arranged at the inner end of the base body, and the middle connecting plate and the base body are of an integrated structure or a detachable structure. The device is simple in structure, convenient and fast to mount and dismount and convenient for subsequent maintenance, the device is mounted on the oxygen cabin to observe the condition in the cabin, personnel outside the cabin can know the condition in the cabin in time, claustrophobia can be avoided, light of the cabin of the oxygen cabin is increased, and the personnel in the oxygen cabin can enjoy a more comfortable oxygen therapy process.

Description

Technical Field

[0001] The utility model relates to a viewing window structure of a hyperbaric oxygen chamber and a hyperbaric oxygen chamber, belonging to the technical field of hyperbaric oxygen chambers. Background Art

[0002] A hyperbaric oxygen chamber is a sealed chamber that can provide high-concentration pure oxygen for people inside the chamber to breathe. The treatment effect is achieved by controlling the air pressure inside the chamber. Usually, the air pressure inside the chamber is adjusted to a slightly high-pressure state, generally about 1.3 atmospheres. This slightly high pressure helps to reduce the formation of bubbles in tissues and promote blood circulation. When undergoing treatment in a hyperbaric oxygen chamber, the user needs to enter the chamber and stay for a period of time. During the treatment process, the user breathes high-concentration pure oxygen in a slightly high-pressure environment, which can help improve blood circulation, reduce inflammatory reactions, promote wound healing, etc. Currently, hyperbaric oxygen chambers have been widely used in the medical field, especially in oxygen therapy.

[0003] When the hyperbaric oxygen chamber is in use, the pressure inside the chamber is greater than the external pressure. To ensure the pressure-bearing performance of the chamber body and the safety of the hyperbaric oxygen chamber, the chamber body of the hyperbaric oxygen chamber is mostly made of metal material. People outside this material cannot clearly observe the situation inside the chamber body, and cannot open the hyperbaric oxygen chamber in time when something abnormal occurs inside the chamber body. In addition, if it is completely enclosed, there will also be a situation where the users inside the chamber will have claustrophobia. Therefore, the hyperbaric oxygen chamber needs to have at least one viewing window through which the situation inside the chamber body can be observed. When the user inside the chamber has an emergency and cannot open the door, the medical staff outside the chamber can observe in time and open the door in time. Summary of the Invention

[0004] The utility model aims at the deficiencies of the prior art and provides a viewing window structure of a hyperbaric oxygen chamber and a hyperbaric oxygen chamber.

[0005] The technical solution for the utility model to solve the above technical problems is as follows: A viewing window structure of a hyperbaric oxygen chamber includes a window body. The window body includes a base body, an inner flange arranged on the base body, a transparent plate, and an outer decorative edge. The base body is of a cylindrical structure. Both the inner flange and the outer decorative edge are of annular structures. The outer decorative edge is connected to the outer end of the base body. The transparent plate and the inner flange are arranged on the inner end of the base body. An annular positioning groove for positioning the chamber body of the hyperbaric oxygen chamber is formed between the inner flange and the outer decorative edge.

[0006] The beneficial effects of the present utility model are as follows: When installed on an oxygen chamber, the situation inside or outside the chamber can be seen through the transparent plate of the visual window structure. External personnel can observe the situation of the users inside the chamber through the visual window at any time. If any abnormality is found, the pressure can be released in time to open the chamber door. And the personnel inside the chamber can also see the situation outside the chamber through the visual window, avoiding the occurrence of claustrophobia for the people inside the chamber. Compared with the windows of existing oxygen chambers, this visual window structure is simple, and the installation and disassembly are convenient and fast, facilitating subsequent maintenance. Installing this visual window structure on an oxygen chamber can observe the situation inside the oxygen chamber. When an emergency occurs inside the oxygen chamber, the personnel outside the chamber can understand it in time, and it can also increase the light in the oxygen chamber compartment, enabling the personnel inside the oxygen chamber to enjoy a more comfortable oxygen therapy process.

[0007] On the basis of the above technical solutions, the present utility model can also be improved as follows.

[0008] Further, a middle connecting plate is also provided on the inner end of the base body. The middle connecting plate and the base body are of an integral structure or a detachable structure. The inner flange and the transparent plate are installed on the middle connecting plate through a plurality of connecting bolts.

[0009] The beneficial effect of adopting the above further solution is that in order to facilitate the installation of the inner flange and the transparent plate on the inner end of the base body, an outwardly convex middle connecting plate can be provided on the inner end of the base body. The middle connecting plate can be of an integral structure with the base body, or of course, it can be an independent component installed on the inner end of the base body. The connection between the inner flange and the transparent plate and the middle connecting plate can be achieved through a plurality of connecting bolts.

[0010] Further, connecting plate holes are correspondingly provided on the middle connecting plate, through plate holes are correspondingly provided on the transparent plate, and bolt holes are correspondingly provided on the inner flange. The rod end of the connecting bolt passes through the connecting plate hole and the through plate hole and is threadedly connected with the inner flange.

[0011] The beneficial effect of adopting the above further solution is that the inner flange and the transparent plate are installed on the middle connecting plate through a plurality of connecting bolts. This connection mechanism is convenient for the installation of the inner flange and the transparent plate on the one hand, and convenient for the subsequent replacement and maintenance of the transparent plate on the other hand. In order to ensure the aesthetics of the inner flange, the bolt holes can adopt blind hole design.

[0012] Further, the base body is a conical structure with a larger outer diameter and a smaller inner diameter.

[0013] The beneficial effect of adopting the above further solution is that the conical structure is convenient for the base body of the visual window structure to quickly enter the window hole of the oxygen chamber on the one hand, and the installation is convenient and fast; on the other hand, the overall outer shape of the visual window structure installed on the oxygen chamber is beautiful.

[0014] Further, a positioning ring convex for positioning the transparent plate is provided on the inner end surface of the inner flange.

[0015] The beneficial effect of adopting the above further solution is that the transparent plate can be positioned through the convex positioning ring, and the installation position is more accurate and stable.

[0016] Further, the middle connecting plate is threadedly connected to the base body.

[0017] The beneficial effect of adopting the above further solution is that the base body is provided with an external thread, and the inner wall of the middle connecting plate is provided with an internal thread adapted to the external thread, and the two are threadedly connected, which is convenient for installation and subsequent maintenance.

[0018] Further, the exterior trim is welded to the base body.

[0019] The beneficial effect of adopting the above further solution is that the exterior trim can be welded to the base body, which is convenient for operation and has a large connection strength.

[0020] Further, the base body and the exterior trim are of an integral structure.

[0021] The beneficial effect of adopting the above further solution is that the exterior trim can be a split structure with the base body, such as the above exterior trim is welded to the base body; of course, the exterior trim can also be of an integral structure with the base body, and the overall strength of the base body and the exterior trim is better and not easily damaged.

[0022] Further, the cabin wall of the cabin body includes an inner layer, an outer layer and a plurality of struts arranged between the inner layer and the outer layer. The annular positioning groove includes an outer positioning groove and an inner positioning groove for positioning the inner layer. The inner positioning groove is formed between the middle connecting plate and the inner flange, and the outer positioning groove is formed between the middle connecting plate and the exterior trim. The width of the inner positioning groove is adapted to the thickness of the inner layer; the width of the outer positioning groove is greater than the thickness of the outer layer, and the outer surface of the outer layer is positioned through the inner end face of the exterior trim, or the width of the outer positioning groove is adapted to the thickness of the outer layer.

[0023] The beneficial effect of adopting the above further solution is that the cabin body of the oxygen cabin can be set as a single layer, and of course, a double-layer structure design can also be adopted. When facing the cabin body with a double-layer structure, the window structure needs to position the outer layer and the inner layer of the cabin body respectively when connecting with the cabin body. The inner layer can be positioned through the inner positioning groove between the middle connecting plate and the inner flange, and the outer layer can be positioned through the outer positioning groove between the exterior trim and the middle connecting plate; of course, because there are still struts between the outer layer and the inner layer, the width of the outer positioning groove between the exterior trim and the middle connecting plate will be greater than the width of the outer layer. At this time, the outer surface of the outer layer can be directly positioned through the inner end face of the exterior trim, and the inner surface of the outer layer does not need to be positioned.

[0024] Further, the outer end face of the inner flange is provided with a flange ring platform for positioning the inner layer.

[0025] The beneficial effect of adopting the above further solution is that in order to further position the connection position between the visual window and the cabin body, a flange ring platform can be arranged on the outer end face of the inner flange, and the position of the cabin body can be positioned through the step of the ring platform, further ensuring the accuracy and stability of the installation position of the visual window on the cabin body of the oxygen chamber.

[0026] Furthermore, a connecting plate ring platform for positioning the inner layer is arranged on the inner end face of the middle connecting plate.

[0027] The beneficial effect of adopting the above further solution is that of course, when the cabin body is of an inner and outer double-layer structure, a connecting plate ring platform can also be arranged at the corresponding position of the middle connecting plate, and the external position of the inner layer of the cabin body can be positioned through the step of the ring platform, further ensuring the accuracy and stability of the installation position of the visual window on the cabin body of the oxygen chamber.

[0028] Furthermore, a sealing gasket is arranged between the inner flange and the transparent plate, between the middle connecting plate and the transparent plate, and / or between the exterior trim and the cabin body, and a sealing ring groove for positioning the sealing gasket is arranged on the corresponding end faces of the inner flange, the middle connecting plate, and / or the exterior trim.

[0029] The beneficial effect of adopting the above further solution is that sealing ring grooves can be arranged on the corresponding end faces of the inner flange and the middle connecting plate, and sealing gaskets can be installed in the sealing ring grooves to further meet the requirements of the positioning sealing of the transparent plate and the sealing of the oxygen chamber; the exterior trim acts on the outer surface of the cabin body, and in order to ensure the installation sealing of the visual window structure on the cabin body, a sealing gasket can also be arranged between the exterior trim and the cabin body to further improve the sealing of the visual window part of the oxygen chamber.

[0030] The present utility model also relates to an oxygen chamber, which includes a cabin body and also includes the visual window structure of the oxygen chamber as described above. At least one visual window structure of the oxygen chamber is arranged on the cabin body, and a window hole for installing the visual window structure of the oxygen chamber is arranged on the cabin body.

[0031] The beneficial effect of the present utility model is that: the oxygen chamber is provided with at least one visual window structure, through which the situation inside the oxygen chamber can be observed. Through this design, when an emergency occurs to the user inside the oxygen chamber main body, the personnel outside the cabin can understand and release the pressure and open the cabin in time; the outside light can enter the cabin through the visual window, making the inside of the cabin brighter and more comfortable.

[0032] Based on the above technical solutions, the present utility model can also be improved as follows.

[0033] Further, the cabin wall of the cabin body includes an inner layer, an outer layer, and a plurality of struts arranged between the inner layer and the outer layer. The inner positioning groove between the inner flange and the middle connecting plate is used to position the inner layer. The width of the inner positioning groove is adapted to the thickness of the inner layer, and the inner end surface of the outer trim acts on the outer surface of the outer layer.

[0034] The beneficial effect of adopting the above further solution is that if the cabin body adopts an inner and outer double-layer design, the inner layer of the cabin body can be positioned through the inner positioning groove between the middle connecting plate and the inner flange, and the outer layer of the cabin wall can be positioned by using the outer trim. The cabin wall of the cabin body adopts an inner and outer double-layer structure design. In order to ensure the support strength of the inner and outer double-layer structure, a plurality of struts are also added between the inner layer and the outer layer, further improving the pressure-bearing strength of the cabin body of the oxygen chamber.

[0035] Further, a trim positioning groove for positioning the outer trim is provided on the outer layer.

[0036] The beneficial effect of adopting the above further solution is that a trim positioning groove adapted to the outer trim can be provided on the outer layer of the cabin body, further ensuring the installation stability of the viewing window structure and the aesthetics of the installation on the outer surface of the cabin body.

[0037] Further, a flange positioning groove for positioning the inner flange is provided on the inner layer.

[0038] The beneficial effect of adopting the above further solution is that a flange positioning groove adapted to the inner flange can be provided on the inner layer of the cabin body, further ensuring the installation stability of the viewing window structure and the aesthetics of the installation on the inner surface of the cabin body. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is the front view structural schematic diagram of the viewing window structure of the present invention;

[0040] Figure 2 is Figure 1 the sectional structural schematic diagram along the A-A direction in

[0041] Figure 3 is Figure 1 the sectional structural schematic diagram along the B-B direction in

[0042] Figure 4 is the three-dimensional structural schematic diagram of the viewing window structure at Angle 1;

[0043] Figure 5 is the three-dimensional structural schematic diagram of the viewing window structure at Angle 2;

[0044] Figure 6 is the connection state structural schematic diagram of the connecting bolts of the viewing window structure;

[0045] Figure 7Schematic structural diagram of the oxygen chamber of the present utility model;

[0046] Figure 8 is Figure 7 Schematic cross-sectional structure diagram along the C-C direction in;

[0047] Figure 9 is Figure 8 Partial enlarged view at D in;

[0048] Figure 10 Schematic three-dimensional structure diagram of the oxygen chamber of the present utility model;

[0049] In the figure, 1 is the window body; 101 is the base; 102 is the outer trim; 103 is the middle connecting plate; 104 is the transparent plate; 105 is the inner flange; 106 is the connecting bolt; 107 is the connecting plate hole; 108 is the transparent plate hole; 109 is the bolt hole; 110 is the inner positioning groove; 111 is the outer positioning groove; 112 is the flange ring platform; 113 is the connecting plate ring platform; 114 is the sealing ring groove; 115 is the positioning ring convex; 2 is the cabin body; 201 is the outer layer; 202 is the strut; 203 is the inner layer. Specific embodiments

[0050] The principles and features of the present utility model will be described below in conjunction with examples. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0051] As Figures 1-6 shown, a visible window structure of an oxygen chamber includes a window body 1. The window body 1 includes a base 101, an inner flange 105, a transparent plate 104 and an outer trim 102 provided on the base 101. The base 101 is of a cylindrical structure. Both the inner flange 105 and the outer trim 102 are of annular structures. The outer trim 102 is connected to the outer end of the base 101. The inner flange 105 and the transparent plate 104 are provided at the inner end of the base 101. An annular positioning groove for positioning the cabin body 2 of the oxygen chamber is formed between the inner flange 105 and the outer trim 102.

[0052] A middle connecting plate 103 is further provided at the inner end of the base 101. The middle connecting plate 103 and the base 101 are of an integral structure or a detachable structure. The inner flange 105 and the transparent plate 104 are installed on the middle connecting plate 103 through a plurality of connecting bolts 106. In order to facilitate the installation of the inner flange and the transparent plate at the inner end of the base, an outwardly convex middle connecting plate can be provided at the inner end of the base. The middle connecting plate can be of an integral structure with the base. Of course, it can also be an independent component installed at the inner end of the base. The connection between the inner flange and the transparent plate and the middle connecting plate can be achieved through a plurality of connecting bolts.

[0053] A connecting plate hole 107 is correspondingly provided on the middle connecting plate 103, a through plate hole 108 is correspondingly provided on the transparent plate 104, a bolt hole 109 is correspondingly provided on the inner flange 105, and the rod end of the connecting bolt 106 passes through the connecting plate hole 107 and the through plate hole 108 and is threadedly connected to the inner flange 105. The inner flange 105 and the transparent plate 104 are installed on the middle connecting plate 103 through a plurality of connecting bolts 106. On the one hand, this connecting mechanism facilitates the installation of the inner flange 105 and the transparent plate 104, and on the other hand, it facilitates the subsequent replacement and maintenance of the transparent plate 104. In order to ensure the aesthetics of the inner flange 105, the bolt hole 109 can adopt a blind hole design.

[0054] The base body 101 is a conical structure with a larger outer part and a smaller inner part. On the one hand, the conical structure facilitates the quick entry of the base body 101 of the visual window structure into the window hole of the oxygen chamber, making the installation convenient and fast; on the other hand, the overall appearance of the visual window structure installed on the oxygen chamber is beautiful.

[0055] A positioning ring convex 115 for positioning the transparent plate 104 is provided on the inner end surface of the inner flange 105. The transparent plate 104 can be positioned through the positioning ring convex 115, and the installation position is more accurate and stable.

[0056] The middle connecting plate 103 is threadedly connected to the base body 101. It can be that an external thread is provided on the base body 101, and an internal thread adapted to the external thread is provided on the inner wall of the middle connecting plate 103, and the two are threadedly connected, which is convenient for installation and subsequent maintenance.

[0057] The exterior trim 102 is welded to the base body 101. The exterior trim 102 can be welded to the base body 101 together, which is convenient for operation and has a large connection strength.

[0058] The base body 101 and the exterior trim 102 are of an integral structure. The exterior trim 102 can be a split structure with the base body 101, such as the above-mentioned exterior trim 102 is welded to the base body 101; of course, the exterior trim 102 can also be of an integral structure with the base body 101, and the overall strength of the base body 101 and the exterior trim 102 is better and not easily damaged.

[0059] The bulkhead of the cabin body 2 includes an inner layer 203, an outer layer 201, and a plurality of struts 202 arranged between the inner layer 203 and the outer layer 201. The annular positioning groove includes an outer positioning groove 111 and an inner positioning groove 110 for positioning the inner layer 203. The inner positioning groove 110 is formed between the middle connecting plate 103 and the inner flange 105, and the outer positioning groove 111 is formed between the middle connecting plate 103 and the outer trim 102. The width of the inner positioning groove 110 is adapted to the thickness of the inner layer 203; the width of the outer positioning groove 111 is greater than the thickness of the outer layer 201, and the outer surface of the outer layer 201 is positioned by the inner end face of the outer trim 102, or the width of the outer positioning groove 111 is adapted to the thickness of the outer layer 201. The cabin body 2 of the oxygen chamber can be arranged in a single layer, and of course, a double-layer structure design can also be adopted. When facing the cabin body 2 with a double-layer structure, the window structure needs to position the outer layer 201 and the inner layer 203 of the cabin body 2 respectively when connecting to the cabin body 2. The inner layer 203 can be positioned through the inner positioning groove 110 between the middle connecting plate 103 and the inner flange 105, and the outer layer 201 can be positioned through the outer positioning groove 111 between the outer trim 102 and the middle connecting plate 103; of course, because there are also struts 202 between the outer layer 201 and the inner layer 203, the width of the outer positioning groove 111 between the outer trim 102 and the middle connecting plate 103 will be greater than the width of the outer layer 201. At this time, the outer surface of the outer layer 201 can be directly positioned by the inner end face of the outer trim 102, and the inner surface of the outer layer 201 does not need to be positioned.

[0060] A flange ring platform 112 for positioning the inner layer 203 is provided on the outer end face of the inner flange 105. In order to further position the connection position between the viewing window and the cabin body 2, a flange ring platform 112 can be provided on the outer end face of the inner flange 105, and the position of the cabin body 2 can be positioned by the step of the ring platform, further ensuring the accuracy and stability of the installation position of the viewing window on the cabin body 2 of the oxygen chamber.

[0061] A connecting plate ring platform 113 for positioning the inner layer 203 is provided on the inner end face of the middle connecting plate 103. Of course, when the cabin body 2 has an inner and outer double-layer structure, a connecting plate ring platform 113 can also be provided at the corresponding position of the middle connecting plate 103, and the outer position of the inner layer 203 of the cabin body 2 can be positioned by the step of the ring platform, further ensuring the accuracy and stability of the installation position of the viewing window on the cabin body 2 of the oxygen chamber.

[0062] A sealing washer is provided between the inner flange 105 and the transparent plate 104, between the middle connecting plate 103 and the transparent plate 104, and / or between the exterior trim 102 and the cabin body 2. A sealing ring groove 114 for positioning the sealing washer is provided on the corresponding end faces of the inner flange 105, the middle connecting plate 103, and / or the exterior trim 102. The sealing ring groove 114 can be provided on the corresponding end faces of the inner flange 105 and the middle connecting plate 103, and a sealing washer can be installed in the sealing ring groove 114 to further meet the requirements of the positioning seal of the transparent plate 104 and the seal of the oxygen chamber; the exterior trim 102 acts on the outer surface of the cabin body 2. In order to ensure the installation seal of the viewing window structure on the cabin body 2, a sealing washer can also be provided between the exterior trim 102 and the cabin body 2 to further improve the seal of the viewing window part of the oxygen chamber.

[0063] As Figures 7-10 shown, the present invention also relates to an oxygen chamber, which includes a cabin body 2 and also includes the viewing window structure of the oxygen chamber as described above. At least one viewing window structure of the oxygen chamber is provided on the cabin body 2, and a window hole for installing the viewing window structure of the oxygen chamber is provided on the cabin body 2.

[0064] The cabin wall of the cabin body 2 includes an inner layer 203, an outer layer 201, and a plurality of struts 202 provided between the inner layer 203 and the outer layer 201. The inner positioning groove 110 between the inner flange 105 and the middle connecting plate 103 is used to position the inner layer 203. The width of the inner positioning groove 110 is adapted to the thickness of the inner layer 203. The inner end face of the exterior trim 102 acts on the outer surface of the outer layer 201. If the cabin body 2 adopts an inner and outer double-layer design, the inner layer 203 of the cabin body 2 can be positioned through the inner positioning groove 110 between the middle connecting plate 103 and the inner flange 105, and the outer layer 201 of the cabin wall can be positioned by using the exterior trim 102. The cabin wall of the cabin body 2 adopts an inner and outer double-layer structure design. In order to ensure the support strength of the inner and outer double-layer structure, a plurality of struts 202 are added between the inner layer 203 and the outer layer 201 to further improve the pressure-bearing strength of the cabin body 2 of the oxygen chamber.

[0065] A trim positioning groove for positioning the exterior trim 102 is provided on the outer layer 201. A trim positioning groove adapted to the exterior trim 102 can be provided on the outer layer 201 of the cabin body 2 to further ensure the installation stability of the viewing window structure and the aesthetics of the installation on the cabin body 2.

[0066] When installing the visual window structure, there is a left semi-circular window hole adapted to it on the cabin panel on one side of the visual window structure of the oxygen chamber cabin body, and a right semi-circular window hole adapted to the visual window structure on the cabin panel on the other side. The two cabin panels can be butted to engage with the visual window structure. After the two cabin panels are butted, a window hole adapted to the visual window structure is formed, realizing the installation of the visual window structure on the cabin body. The visual window structure is simple, convenient for self-assembly, and also convenient and fast for installation on the cabin body. The oxygen chamber after installation has a beautiful appearance. The situation inside or outside the cabin can be seen through the transparent plate of the visual window structure. External personnel can observe the situation of the users inside the cabin through the visual window at any time. If any abnormality is found, the pressure can be released in time to open the cabin door; while the personnel inside the cabin can also see the situation outside the cabin through the visual window, avoiding the occurrence of claustrophobia for the people inside the cabin, and can also increase the light in the oxygen chamber cabin, enabling the personnel inside the oxygen chamber to enjoy a more comfortable oxygen therapy process.

[0067] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A visual window structure of an oxygen chamber, comprising a visual window body (1), characterized in that: The window body (1) comprises a base (101), an inner flange (105) arranged on the base (101), a transparent plate (104) and an outer decorative edge (102); the base (101) is a cylindrical structure; the inner flange (105) and the outer decorative edge (102) are both annular structures; the outer decorative edge (102) is connected to the outer end of the base (101); the transparent plate (104) and the inner flange (105) are arranged on the inner end of the base (101); and an annular positioning groove for positioning the cabin body (2) of the oxygen cabin is formed between the inner flange (105) and the outer decorative edge (102).

2. The visual window structure of the oxygen cabin according to claim 1, characterized in that: A middle connecting plate (103) is also provided on the inner end of the base (101); the middle connecting plate (103) and the base (101) are an integral structure or a detachable structure; the inner flange (105) and the transparent plate (104) are mounted on the middle connecting plate (103) via a plurality of connecting bolts (106).

3. The visual window structure of the oxygen cabin according to claim 2, characterized in that: The middle connecting plate (103) is provided with a connecting plate hole (107), the transparent plate (104) is provided with a through-plate hole (108), the inner flange (105) is provided with a bolt hole (109), the rod end of the connecting bolt (106) passes through the connecting plate hole (107) and the through-plate hole (108) and is threadedly connected to the inner flange (105); and / or the middle connecting plate (103) is threadedly connected to the base (101).

4. The visual window structure of the oxygen cabin according to claim 1, characterized in that: The base (101) is a conical structure with a larger outer portion and a smaller inner portion; and / or a positioning annular protrusion (115) for positioning the transparent plate (104) is provided on the inner end surface of the inner flange (105).

5. The visual window structure of the oxygen cabin according to any one of claims 2 or 3, characterized in that: The bulkhead of the cabin body (2) comprises an inner layer (203), an outer layer (201) and a plurality of struts (202) arranged between the inner layer (203) and the outer layer (201); the annular positioning groove comprises an outer positioning groove (111) and an inner positioning groove (110) for positioning the inner layer (203); the inner positioning groove (110) is formed between the middle connecting plate (103) and the inner flange (105); the middle connecting plate (103) and the inner flange (105) are connected to each other; The outer positioning groove (111) is formed between the outer decorative edges (102), and the width of the inner positioning groove (110) is adapted to the thickness of the inner layer (203); the width of the outer positioning groove (111) is greater than the thickness of the outer layer (201), and the outer surface of the outer layer (201) is positioned by the inner end surface of the outer decorative edge (102), or the width of the outer positioning groove (111) is adapted to the thickness of the outer layer (201).

6. The visual window structure of the oxygen cabin according to claim 5, characterized in that: The outer end surface of the inner flange (105) is provided with a flange ring (112) for positioning the inner layer (203); and / or the inner end surface of the middle connecting plate (103) is provided with a connecting plate ring (113) for positioning the inner layer (203).

7. The visual window structure of the oxygen cabin according to any one of claims 1 to 4, characterized in that: The outer decorative edge (102) is welded on the base (101); And / or, the base (101) and the outer decorative edge (102) are an integral structure.

8. An oxygen chamber, comprising a chamber body (2), characterized in that: It also includes a visible window structure of the oxygen chamber as described in any one of claims 1 to 7, wherein at least one visible window structure of the oxygen chamber is provided on the chamber body (2), and a window hole for installing the visible window structure of the oxygen chamber is provided on the chamber body (2).

9. The oxygen chamber according to claim 8, characterized in that: The bulkhead of the cabin body (2) comprises an inner layer (203), an outer layer (201) and a plurality of struts (202) arranged between the inner layer (203) and the outer layer (201); an inner positioning groove (110) between the inner flange (105) and the middle connecting plate (103) is used to position the inner layer (203); the width of the inner positioning groove (110) is adapted to the thickness of the inner layer (203); and the inner end surface of the outer decorative edge (102) acts on the outer surface of the outer layer (201).

10. The oxygen chamber according to claim 9, characterized in that: The outer layer (201) is provided with a trim positioning groove for positioning the outer trim (102); and / or the inner layer (203) is provided with a flange positioning groove for positioning the inner flange (105).

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