Integrated structure of oxygen separation sealing cover and oxygen generation valve seat of oxygen generator

Abstract

The oxygen separation sealing cover and oxygen generation valve seat integrated structure comprises a sealing end cover and an oxygen generation valve, an air inlet and an oxygen outlet are formed in the sealing end cover, a first containing cavity, a second containing cavity and a third containing cavity are formed in the end face of the sealing end cover, a first sub air inlet is formed in the first containing cavity, and a second sub air outlet is formed in the second containing cavity. A second sub-air inlet is formed in the second accommodating cavity, the third accommodating cavity encloses the periphery of the end part of the oxygen outlet, and the oxygen generation valve is arranged on the sealing end cover. According to the structure disclosed by the utility model, the original four parts, namely the separating tower sealing cover, the oxygen storage tank sealing cover and the mounting seat of the oxygen generation valve, are combined into one part, and the parts needing to be communicated are controlled and communicated on the integrated part through the oxygen generation valve, so that the structure is simple, pipeline connection is reduced, the material cost is reduced, and the internal space of the oxygen generator is effectively utilized; the assembly is simplified, and the defective finished products caused by the defective pipelines, joints and parts are reduced.

Description

Technical Field

[0001] The utility model relates to the field of oxygen generators, and particularly to an integrated structure of an oxygen separation sealing cover and an oxygen making valve seat of an oxygen generator. Background Art

[0002] Oxygen generators are widely used in families, hospitals, sanatoriums, schools, hotels, sports venues, bars, oxygen bars, and plateau military stations, etc. With the enhancement of people's health awareness, the market of household oxygen generators has gradually emerged and become an important device for health care. As a household medical device, its market demand is continuously increasing with people's pursuit of a healthy life.

[0003] The separation tower is the core component in the oxygen generator to achieve air separation. It is internally equipped with molecular sieves, and the separation is achieved by utilizing the difference in the adsorption capacity of molecular sieves for nitrogen and oxygen. Under the action of pressure, nitrogen is adsorbed by the molecular sieve, while oxygen passes through the molecular sieve and is separated; the oxygen storage tank in the oxygen generator is used to store the oxygen separated in the separation tower and deliver it to the user.

[0004] In the existing market, the separation tower, oxygen storage tank, and oxygen making valve of the oxygen generator are all independent components, and they are all independent plastic and aluminum parts in the oxygen making system. Therefore, the sealing cover at the end of the separation tower, the sealing cover at the end of the oxygen storage tank, and the mounting seat of the oxygen making valve are also all independent components. This will lead to a large number of complex pipelines inside the oxygen generator, increasing potential safety hazards, as well as increasing material costs, processing costs, and assembly labor costs. The pipeline materials are mostly silica gel, and the sound insulation effect is generally poor, and it also occupies a relatively large space inside the oxygen generator. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies of the above-mentioned existing technologies and provide an integrated structure of an oxygen separation sealing cover and an oxygen making valve seat of an oxygen generator.

[0006] According to one aspect of the utility model, an integrated structure of an oxygen separation sealing cover and an oxygen making valve seat of an oxygen generator is provided, including:

[0007] A sealing end cover, on which an air inlet and an oxygen outlet are provided. On the end face of the sealing end cover, a first accommodation cavity, a second accommodation cavity, and a third accommodation cavity are provided. A first sub-air inlet is provided in the first accommodation cavity, a second sub-air inlet is provided in the second accommodation cavity, the third accommodation cavity surrounds the periphery of the end of the oxygen outlet, and the third accommodation cavity is located between the first accommodation cavity and the second accommodation cavity; and

[0008] An oxygen making valve, which is arranged on the sealing end cover. The first port of the oxygen making valve is communicated with the air inlet, the second port of the oxygen making valve is communicated with the first sub-air inlet, and the third port of the oxygen making valve is communicated with the second sub-air inlet.

[0009] The integrated structure of the oxygen separation sealing cover and the oxygen production valve seat of the present utility model is used to be adaptively installed at the end of the integrated structure of two separation towers and an oxygen storage tank (the oxygen storage tank is located between the two separation towers). The first accommodating cavity is communicated with one separation tower, the second accommodating cavity is communicated with the other separation tower, and the third accommodating cavity is communicated with the oxygen storage tank. Under the control of the oxygen production valve, compressed air can enter one separation tower through the air inlet, the first sub-air inlet, and the first accommodating cavity. Compressed air can also enter the other separation tower through the air inlet, the second sub-air inlet, and the second accommodating cavity. The oxygen stored in the oxygen storage tank can be discharged through the oxygen outlet. The structure of the present utility model combines the four components of the original two separation tower sealing covers, the oxygen storage tank sealing cover, and the mounting seat of the oxygen production valve into one component. The parts that need to be communicated are controlled and communicated through the oxygen production valve on this integrated component, which can seal the ends of the two separation towers and the oxygen storage tank at the same time, and the size meets the requirements of being formed by an injection mold, realizing mold injection processing production. The integrated structure of the oxygen separation sealing cover and the oxygen production valve seat of the present utility model has a simple structure, can reduce pipeline connections, reduce material costs, effectively utilize the space inside the oxygen generator, simplify the assembly with the two separation towers and the oxygen storage tank, can reduce assembly, reduce the defective products caused by poor pipelines, joints, and the components themselves, improve the yield rate, and moreover, while reducing materials, effectively reduce the noise of the whole machine.

[0010] Furthermore, a nitrogen discharge port is provided on the sealing end cover, and the fourth port of the oxygen production valve is communicated with the nitrogen discharge port. Therefore, when the nitrogen adsorbed by the molecular sieve in one separation tower reaches saturation, under the control of the oxygen production valve, the first sub-air inlet is communicated with the nitrogen discharge port, and the nitrogen in this separation tower can be released to the atmosphere through the first sub-air inlet and the nitrogen discharge port to reduce the pressure of the molecular sieve in this separation tower, thereby restoring its nitrogen adsorption capacity; when the nitrogen adsorbed by the molecular sieve in the other separation tower reaches saturation, under the control of the oxygen production valve, the second sub-air inlet is communicated with the nitrogen discharge port, and the nitrogen in this separation tower can be released to the atmosphere through the second sub-air inlet and the nitrogen discharge port to reduce the pressure of the molecular sieve in this separation tower, thereby restoring its nitrogen adsorption capacity.

[0011] Furthermore, the oxygen production valve is a two-position five-way valve, and the oxygen production valve can communicate the first sub-air inlet with the second sub-air inlet. Therefore, through the two-position five-way valve, the communication between the air inlet and the first sub-air inlet, the communication between the air inlet and the second sub-air inlet, the communication between the first sub-air inlet and the nitrogen discharge port, the communication between the second sub-air inlet and the nitrogen discharge port, and the communication between the first sub-air inlet and the second sub-air inlet can be automatically controlled, so as to orderly realize the adsorption of nitrogen in one separation tower (left adsorption), the communication of the two separation towers to balance the pressure (equalization of pressure), the adsorption of nitrogen in the other separation tower (right adsorption), the communication of one separation tower with the nitrogen discharge port (desorption), and the communication of the other separation tower with the nitrogen discharge port (desorption).

[0012] Further, a sealing groove is provided on the sealing end cover. The sealing groove is disposed around the perimeters of the first accommodating cavity, the second accommodating cavity, and the third accommodating cavity, and the side wall of the sealing groove protrudes from the end face of the sealing end cover. Therefore, when assembling with the structure integrally formed by the two separation towers and the oxygen storage tank, the end of one separation tower, the end of the oxygen storage tank, and the end of the other separation tower are respectively inserted and accommodated in the sealing grooves at corresponding positions. In this way, the end of one separation tower surrounds the perimeter of the opening of the first accommodating cavity, the end of the other separation tower surrounds the perimeter of the opening of the second accommodating cavity, and the end of the oxygen storage tank surrounds the perimeter of the opening of the third accommodating cavity, thereby realizing the communication between the first accommodating cavity and one separation tower, the communication between the second accommodating cavity and the other separation tower, and the communication between the third accommodating cavity and the oxygen storage tank.

[0013] Further, a plurality of fixing through holes are provided on the inner bottom of the sealing groove. Therefore, by using screws to pass through the fixing through holes and tighten them on the structure integrally formed by the two separation towers and the oxygen storage tank, the assembly of the structure of the present utility model and the structure integrally formed by the two separation towers and the oxygen storage tank can be completed very conveniently.

[0014] Further, a pressure regulating valve is further included. The pressure regulating valve is provided on the sealing end cover and is communicated with the third accommodating cavity. Therefore, the pressure regulating valve is used to reduce the high-pressure oxygen in the oxygen storage tank to the working pressure required by the user, and at the same time, it can ensure that the oxygen has a stable working pressure when output.

[0015] Further, an internally threaded mounting seat is provided on the sealing end cover. A through hole communicated with the third accommodating cavity is provided on the inner bottom of the internally threaded mounting seat, and the pressure regulating valve is threadedly connected to the internally threaded mounting seat. Therefore, the pressure regulating valve can be very conveniently installed through the internally threaded mounting seat. The structure of the present utility model combines the original five components, namely the sealing covers of the two separation towers, the sealing cover of the oxygen storage tank, the mounting seat for installing the oxygen production valve, and the internally threaded mounting seat for installing the pressure regulating valve, into one component. The structure is simple, the pipeline connection can be reduced, the material cost can be reduced, and the internal space of the oxygen generator can be effectively utilized.

[0016] Further, the cross-sections of both the first accommodating cavity and the second accommodating cavity are circular. Therefore, in this way, it can be adaptively installed on the ends of the two separation towers in the structure integrally formed by the two separation towers and the oxygen storage tank for sealing.

[0017] Further, a plurality of first reinforcing ribs are provided between the inner wall and the bottom of the first accommodating cavity, and a plurality of second reinforcing ribs are provided between the inner wall and the bottom of the second accommodating cavity. Therefore, the first reinforcing ribs can ensure the strength of the first accommodating cavity and ensure that the corner positions in the first accommodating cavity are not easily cracked. The second reinforcing ribs can ensure the strength of the second accommodating cavity and ensure that the corner positions in the second accommodating cavity are not easily cracked.

[0018] Further, the free end of the air inlet is conical, and the free end of the oxygen outlet is conical. Therefore, the air inlet and the oxygen outlet with conical free ends are convenient for plugging and connecting with pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a schematic structural view of an integrated structure of an oxygen separation seal cover and an oxygen production valve seat of an oxygen generator according to the present invention;

[0020] Figure 2 For Figure 1 FIG. shows a split structural view of the integrated structure of the oxygen separation seal cover and the oxygen production valve seat;

[0021] Figure 3 For Figure 1 FIG. shows a split structural view of the integrated structure of the oxygen separation seal cover and the oxygen production valve seat;

[0022] Figure 4 For Figure 3 FIG. shows a schematic structural view of a seal end cover in the integrated structure of the oxygen separation seal cover and the oxygen production valve seat;

[0023] Figure 5 For Figure 1 FIG. shows a schematic view of a structure in which two separation towers and an oxygen storage tank adapted to the integrated structure of the oxygen separation seal cover and the oxygen production valve seat are integrally formed;

[0024] Figure 6 For Figure 1 FIG. shows an assembly view of the integrated structure of the oxygen separation seal cover and the oxygen production valve seat and the structure in which two separation towers and an oxygen storage tank are integrally formed. SPECIFIC EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the 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 of the embodiments.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality of" is two or more. It should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements.

[0027] Referring to Figures 1 to 4 , an integrated structure of an oxygen separation seal cover and an oxygen production valve seat of an oxygen generator includes a seal end cover 1, an oxygen production valve 2, and a pressure regulating valve 3.

[0028] Referring to Figures 1 to 4 , an air inlet 11 is formed on the side of the seal end cover 1. The air inlet 11 is connected to the pipeline of the compressed gas generated by the compressor in the oxygen generator. An oxygen outlet 12 is formed on the seal end cover 1. The oxygen in the oxygen storage tank of the oxygen generator can be discharged through the oxygen outlet 12 to be supplied to the user.

[0029] Referring to Figure 1 and Figure 2 , the free end of the air inlet 11 is conical, and the free end of the oxygen outlet 12 is conical. The air inlet 11 and the oxygen outlet 12 with conical free ends facilitate the plug-in connection with the pipeline.

[0030] Referring to Figure 1 , Figure 3 and Figure 4, on the end face of the sealed end cover 1, a first accommodating cavity 13, a second accommodating cavity 14, and a third accommodating cavity 15 are formed. The third accommodating cavity 15 is located between the first accommodating cavity 13 and the second accommodating cavity 14. The depths of the first accommodating cavity 13 and the second accommodating cavity 14 are the same and greater than the depth of the third accommodating cavity 15. A first sub-inlet 131 is formed in the first accommodating cavity 13. The first sub-inlet 131 can communicate with the inlet 11. The first sub-inlet 131 is located on the inner wall of the first accommodating cavity 13. A second sub-inlet 141 is formed in the second accommodating cavity 14. The second sub-inlet 141 can communicate with the inlet 11. The second sub-inlet 141 is located on the inner wall of the second accommodating cavity 15. The oxygen outlet 12 is located in the third accommodating cavity 15. The third accommodating cavity 15 surrounds the periphery of the end of the oxygen outlet 12. The cross-sections of the first accommodating cavity 13 and the second accommodating cavity 14 are circular, and the cross-section of the third accommodating cavity 15 is approximately quadrilateral. In this way, it can be adaptively installed on the ends of the two separation towers and the end of the oxygen storage tank in a structure where the two separation towers and the oxygen storage tank are integrally formed for sealing.

[0031] Refer to Figure 4 , multiple first reinforcing ribs 132 are formed between the inner wall and the bottom of the first accommodating cavity 13. The multiple first reinforcing ribs 132 are evenly distributed. Multiple second reinforcing ribs 142 are formed between the inner wall and the bottom of the second accommodating cavity 14. The multiple second reinforcing ribs 142 are evenly distributed. The first reinforcing ribs 132 can ensure the strength of the first accommodating cavity 13 and ensure that the corner positions in the first accommodating cavity 13 are not easily cracked. The second reinforcing ribs 142 can ensure the strength of the second accommodating cavity 14 and ensure that the corner positions in the second accommodating cavity 14 are not easily cracked.

[0032] Refer to Figure 3 and Figure 4, a sealing groove 17 is formed on the sealing end cover 1. The sealing groove 17 is annularly arranged around the peripheries of the first accommodating cavity 13, the second accommodating cavity 14, and the third accommodating cavity 15. The shape of the sealing groove 17 and its arrangement on the sealing end cover 1 are adapted to the end shapes of the two separation towers and the end shape of the oxygen storage tank. The side wall of the sealing groove 17 protrudes from the end face of the sealing end cover 1. The third accommodating cavity 15 can be formed by enclosing with part of the side wall of the sealing groove 17. When assembling with the structure integrally formed with the two separation towers and the oxygen storage tank, the end of one separation tower, the end of the oxygen storage tank, and the end of the other separation tower are respectively inserted and accommodated in the sealing grooves 17 at corresponding positions. In this way, the end of one separation tower encloses around the periphery of the opening of the first accommodating cavity 13, the end of the other separation tower encloses around the periphery of the opening of the second accommodating cavity 14, and the end of the oxygen storage tank encloses around the periphery of the opening of the third accommodating cavity 15, thereby realizing the connection of the first accommodating cavity 13 with one separation tower, the connection of the second accommodating cavity 14 with the other separation tower, and the connection of the third accommodating cavity 15 with the oxygen storage tank. In this way, compressed air can enter one separation tower through the air inlet 21, the first sub-air inlet 131, and the first accommodating cavity 13. Compressed air can enter the other separation tower through the air inlet 11, the second sub-air inlet 141, and the second accommodating cavity 14. The oxygen stored in the oxygen storage tank can be discharged through the oxygen outlet 12 in the third accommodating cavity 15 on the sealing end cover 1. A sealing ring adapted to the shape of the sealing groove 17 can be installed in the sealing groove 17 to ensure the sealing performance of the two separation towers and the oxygen storage tank.

[0033] Refer to Figure 4 , a plurality of fixing through holes 171 are formed on the inner bottom of the sealing groove 17. By using screws to pass through the fixing through holes 171 and tighten them on the structure integrally formed with the two separation towers and the oxygen storage tank, the assembly of the structure of the present utility model with the structure integrally formed with the two separation towers and the oxygen storage tank can be completed, which is very convenient.

[0034] Refer to Figures 2 to 4 , an internal thread mounting seat 18 is formed on the sealing end cover 1. A through hole 19 communicating with the third accommodating cavity 15 is formed on the inner bottom of the internal thread mounting seat 18. The third accommodating cavity 15 encloses around the periphery of the oxygen outlet 12 and the through hole 19. The pressure regulating valve 3 is threadedly connected to the internal thread mounting seat 18. The pressure regulating valve 3 can be very conveniently installed through the internal thread mounting seat 18. The pressure regulating valve 3 can communicate with the third accommodating cavity 15 and the oxygen storage tank through the through hole 19. The pressure regulating valve 3 can reduce the high-pressure oxygen in the oxygen storage tank to the working pressure required by the user. At the same time, it can ensure that the oxygen has a stable working pressure during output.

[0035] Refer to Figure 1 、 Figure 3 and Figure 4, a nitrogen discharge port 16 is formed on the sealed end cover 1. The nitrogen discharge port 16 can communicate with the first sub-inlet port 131 in the first accommodation cavity 13, and the nitrogen discharge port 16 can also communicate with the second sub-inlet port 141 in the second accommodation cavity 14. When the nitrogen adsorbed by the molecular sieve in a separation tower reaches saturation, the first sub-inlet port 131 communicates with the nitrogen discharge port 16, and the nitrogen in this separation tower can be released to the atmosphere through the first sub-inlet port 131 and the nitrogen discharge port 16 to reduce the pressure of the molecular sieve in this separation tower, thereby restoring its nitrogen adsorption capacity. When the nitrogen adsorbed by the molecular sieve in another separation tower reaches saturation, the second sub-inlet port 141 communicates with the nitrogen discharge port 16, and the nitrogen in this separation tower can be released to the atmosphere through the second sub-inlet port 141 and the nitrogen discharge port 16 to reduce the pressure of the molecular sieve in this separation tower, thereby restoring its nitrogen adsorption capacity.

[0036] Refer to Figure 1 , an oxygen production valve 2 is installed on the sealed end cover 1. In this embodiment, the oxygen production valve 2 is a two-position five-way valve. The first port of the two-position five-way valve communicates with the inlet port 11, the second port of the two-position five-way valve communicates with the first sub-inlet port 131 in the first accommodation cavity 13, the third port of the two-position five-way valve communicates with the second sub-inlet port 141 in the second accommodation cavity 14, and the fourth port of the two-position five-way valve communicates with the nitrogen discharge port 16. In this way, the communication between the inlet port 11 and the first sub-inlet port 131, the communication between the inlet port 11 and the second sub-inlet port 141, the communication between the first sub-inlet port 131 and the nitrogen discharge port 16, the communication between the second sub-inlet port 141 and the nitrogen discharge port 16, and the communication between the first sub-inlet port 131 and the second sub-inlet port 141 can be automatically controlled by the two-position five-way valve. Thus, it can be orderly realized that one separation tower adsorbs nitrogen (left adsorption), the two separation towers are connected to equalize the pressure (pressure equalization), another separation tower adsorbs nitrogen (right adsorption), one separation tower communicates with the nitrogen discharge port 16 (desorption), and another separation tower communicates with the nitrogen discharge port 16 (desorption). The direction of the gas flow in the sealed end cover 1 can be orderly controlled and switched by the two-position five-way valve.

[0037] Refer to Figures 1 to 4 , the oxygen separation sealed cover and the oxygen production valve seat of the present utility model are of an integral structure and are used to be adapted and installed on the structure in which two separation towers and an oxygen storage tank are integrally formed (the oxygen storage tank is located between the two separation towers, Figure 5At the end as shown in the figure, the ends of a separation tower, an oxygen storage tank, and the end of another separation tower are respectively inserted and accommodated in the sealing grooves 17 at corresponding positions. The end of one separation tower surrounds the periphery of the opening of the first accommodation cavity 13, the end of the other separation tower surrounds the periphery of the opening of the second accommodation cavity 14, and the end of the oxygen storage tank surrounds the periphery of the opening of the third accommodation cavity 15, realizing the connection of the first accommodation cavity 13 with one separation tower, the connection of the second accommodation cavity 14 with the other separation tower, and the connection of the third accommodation cavity 15 with the oxygen storage tank. Under the control of the oxygen production valve 2, compressed air can enter one separation tower through the air inlet 11, the first sub-air inlet 131, and the first accommodation cavity 13. Compressed air can also enter the other separation tower through the air inlet 11, the second sub-air inlet 141, and the second accommodation cavity 14. The oxygen separated by the two separation towers can enter the oxygen storage tank for storage, and the oxygen stored in the oxygen storage tank can be discharged through the oxygen outlet 12. When the nitrogen adsorbed by the molecular sieve in one separation tower reaches saturation, under the control of the oxygen production valve 2, the first sub-air inlet 131 is connected to the nitrogen discharge port 16, and the nitrogen in this separation tower can be released to the atmosphere through the first sub-air inlet 131 and the nitrogen discharge port 16 to reduce the pressure of the molecular sieve in this separation tower, thereby restoring its nitrogen adsorption capacity. When the nitrogen adsorbed by the molecular sieve in the other separation tower reaches saturation, under the control of the oxygen production valve 2, the second sub-air inlet 141 is connected to the nitrogen discharge port 16, and the nitrogen in this separation tower can be released to the atmosphere through the second sub-air inlet 141 and the nitrogen discharge port 16 to reduce the pressure of the molecular sieve in this separation tower, thereby restoring its nitrogen adsorption capacity; In the structure of the present utility model, the original five components, namely the sealing covers of the two separation towers, the sealing cover of the oxygen storage tank, the mounting seat for installing the oxygen production valve, and the internal thread mounting seat 18 for installing the pressure regulating valve 2, are combined into one component. The parts that need to be connected are controlled and connected through the oxygen production valve 2 on this integrated component. The ends of the two separation towers and the oxygen storage tank can be sealed simultaneously, and the size meets the requirements that can be formed by an injection mold, realizing mold injection processing and production. The oxygen separation sealing cover and the oxygen production valve seat of the present utility model have an integrated structure, which is simple in structure, can reduce pipeline connections, reduce material costs, effectively utilize the space inside the oxygen generator, simplify the assembly with the two separation towers and the oxygen storage tank, can reduce assembly, reduce the defective products caused by poor pipelines, joints, and components themselves, improve the yield rate, and moreover, while reducing materials, effectively reduce the noise of the whole machine.

[0038] Figure 5 Schematically shows Figure 1 The integrated structure of two separation towers and an oxygen storage tank integrally formed that is adapted to the integrated structure of the oxygen separation sealing cover and the oxygen production valve seat shown in the figure.

[0039] Refer to Figure 5, two separation towers 100 are arranged in parallel. Molecular sieves are respectively installed inside the two separation towers 100. The oxygen storage tank 200 is located between the two separation towers 100. The difference in the adsorption capacity of nitrogen and oxygen by the molecular sieve is utilized to separate nitrogen and oxygen. Under the action of pressure, nitrogen will be adsorbed by the molecular sieve, while oxygen will pass through the molecular sieve and be separated. The separated oxygen can enter the oxygen storage tank 200 for storage. The two separation towers 100 and the oxygen storage tank 200 are integrally formed. By using the extra space size between the two separation towers 100, the oxygen storage tank 200 for storing oxygen is made, combining the original three components of two separation tower tubes and an oxygen storage tank into one component.

[0040] Figure 6 Schematically shows Figure 1 The integrated structure of the oxygen separation sealing cover and the oxygen generation valve seat shown in Figure 5 The assembled state of the integrated structure of the two separation towers and the oxygen storage tank shown in

[0041] Refer to Figure 6 , the ends of the two separation towers 100 and the ends of the oxygen storage tank 200 are respectively inserted and accommodated in the sealing grooves 17 ([[]]END Figure 3 shown) at the corresponding positions on the sealing end cover 1. Use screws to pass through the fixing through holes 171 in the sealing grooves 17 ([[]]END Figure 4 shown) and tighten them in the threaded holes on the outer wall of the integrated structure of the two separation towers 100 and the oxygen storage tank 200, and the assembly of the structure of the present invention and the integrated structure of the two separation towers 100 and the oxygen storage tank 200 can be completed, which is very convenient.

[0042] The above are only some embodiments of the present invention, aiming to illustrate the technical means of the present invention, not to limit the technical scope of the present invention. Obvious improvements made by those skilled in the art in combination with the existing common general knowledge fall within the protection scope of the present invention.​​

Claims

1. An integrated structure of an oxygen separation sealing cover and an oxygen production valve seat of an oxygen generator, characterized in that, Comprising: A sealed end cover, on which an air inlet and an oxygen outlet are provided. On the end face of the sealed end cover, there are a first accommodating cavity, a second accommodating cavity and a third accommodating cavity. A first sub-air inlet is provided in the first accommodating cavity, a second sub-air inlet is provided in the second accommodating cavity, the third accommodating cavity surrounds the periphery of the end of the oxygen outlet, and the third accommodating cavity is located between the first accommodating cavity and the second accommodating cavity; and An oxygen-making valve, which is provided on the sealed end cover. The first port of the oxygen-making valve is communicated with the air inlet, the second port of the oxygen-making valve is communicated with the first sub-air inlet, and the third port of the oxygen-making valve is communicated with the second sub-air inlet.

2. The integrated structure of the oxygen separation sealing cover and the oxygen generation valve seat according to claim 1, wherein A nitrogen discharge port is provided on the sealed end cover, and the fourth port of the oxygen-making valve is communicated with the nitrogen discharge port.

3. The oxygen separation sealing cover and the oxygen generation valve seat integrated structure according to claim 2, characterized in that, The oxygen-making valve is a two-position five-way valve, and the oxygen-making valve can communicate the first sub-air inlet with the second sub-air inlet.

4. The integrated structure of the oxygen separation sealing cover and the oxygen generation valve seat according to claim 1, characterized in that A sealing groove is provided on the sealed end cover, and the sealing groove is annularly arranged around the first accommodating cavity, the second accommodating cavity and the third accommodating cavity. The side wall of the sealing groove protrudes from the end face of the sealed end cover.

5. The oxygen separation sealing cover and the oxygen generation valve seat integrated structure according to claim 4, characterized in that, A plurality of fixing through holes are provided on the inner bottom of the sealing groove.

6. The integrated structure of the oxygen separation sealing cover and the oxygen generation valve seat according to claim 1, wherein, It further includes a pressure regulating valve, which is provided on the sealed end cover and is communicated with the third accommodating cavity.

7. The oxygen separation sealing cover and the oxygen generation valve seat integrated structure according to claim 6, characterized in that, An internally threaded mounting seat is provided on the sealed end cover. A through hole communicated with the third accommodating cavity is provided on the inner bottom of the internally threaded mounting seat, and the pressure regulating valve is threadedly connected with the internally threaded mounting seat.

8. The integrated structure of the oxygen separation sealing cover and the oxygen production valve seat according to claim 1, characterized in that, The cross-sections of the first accommodating cavity and the second accommodating cavity are both circular.

9. The integrated structure of the oxygen separation sealing cover and the oxygen generation valve seat according to claim 1, characterized in that A plurality of first reinforcing ribs are provided between the inner wall and the bottom of the first accommodating cavity, and a plurality of second reinforcing ribs are provided between the inner wall and the bottom of the second accommodating cavity.

10. The integrated structure of the oxygen separation sealing cover and the oxygen-making valve seat according to claim 1, characterized in that, The free end of the air inlet is conical, and the free end of the oxygen outlet is conical.

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