An integrated cover assembly applied to an oxygen generator and the oxygen generator

Abstract

This application discloses an integrated cover assembly for an oxygen concentrator and the oxygen concentrator itself. The oxygen concentrator includes a frame, on which a molecular sieve adsorption tower including a first sieving chamber and a second sieving chamber is mounted. The integrated cover assembly includes an end cap, which is installed at the end of the molecular sieve adsorption tower and has a mounting portion extending outward from the molecular sieve adsorption tower. An installation space is formed between the mounting portion and the frame. The integrated cover assembly also includes a gas delivery valve assembly installed in the mounting portion. The gas delivery valve assembly is at least partially located within the installation space and abuts against the frame. The installation space formed by the cooperation between the mounting portion and the frame provides a relatively stable installation environment for the gas delivery valve assembly. The abutment arrangement between the gas delivery valve assembly and the frame effectively enhances the installation stability of the gas delivery valve assembly. During the handling and relocation of the oxygen concentrator, the cooperation and support between the mounting portion and the frame can significantly reduce the shaking of the gas delivery valve assembly caused by external vibrations and bumpy environments, thereby ensuring the working stability of the gas delivery valve assembly.

Description

Technical Field

[0001] This application belongs to the field of respiratory therapy equipment technology, specifically relating to an integrated cover assembly for use in an oxygen concentrator and an oxygen concentrator. Background Technology

[0002] Current oxygen concentrators generally use molecular sieve adsorption towers as their core component, utilizing the pressure swing adsorption principle to separate and produce oxygen from the air. In the entire oxygen generation system, the gas delivery valve assembly is responsible for precisely controlling the flow of gas into and out of the molecular sieve adsorption tower; its performance and installation structure directly affect the oxygen generation efficiency, energy consumption, and stability of the oxygen concentrator. However, the installation method of the gas delivery valve assembly in traditional oxygen concentrators has many problems that urgently need to be solved.

[0003] On the one hand, traditional oxygen concentrators mostly lack a dedicated fixed mounting location for their gas delivery valve assembly, typically connecting it to the molecular sieve adsorption tower via gas delivery pipelines. This connection method results in a dispersed layout of the gas delivery valve assembly within the oxygen concentrator, occupying a significant amount of space and making the overall structure bulky. This hinders miniaturization and portability, limiting the application of oxygen concentrators in space-constrained environments and increasing transportation and storage costs. On the other hand, the complex pipeline connections make the assembly process cumbersome. During production, workers need to spend considerable time installing, debugging, and connecting the pipelines, reducing production efficiency and increasing the risk of gas leaks due to human error, thus affecting the purity and stability of the oxygen produced.

[0004] In addition, when the oxygen generator malfunctions and requires maintenance, maintenance personnel need to spend more time and effort to troubleshoot the fault, disassemble and install the gas delivery valve assembly and related pipelines, which greatly increases the difficulty and cost of maintenance. Utility Model Content

[0005] This application provides an integrated cover assembly and an oxygen generator for use in oxygen generators, in order to solve the technical problems of complex installation, large space occupation, and inconvenient disassembly and assembly of gas delivery valve groups in traditional oxygen generators.

[0006] The technical solution adopted in this application is as follows:

[0007] An integrated cover assembly for an oxygen concentrator is disclosed. The oxygen concentrator includes a frame, on which a molecular sieve adsorption tower including a first sieving chamber and a second sieving chamber is mounted. The integrated cover assembly includes an end cap, which is installed at the end of the molecular sieve adsorption tower and has a mounting portion extending out of the molecular sieve adsorption tower. An installation space is formed between the mounting portion and the frame. The integrated cover assembly also includes a gas delivery valve assembly installed in the mounting portion. The gas delivery valve assembly is at least partially located within the installation space and abuts against the frame.

[0008] The integrated cover assembly described in this application also includes the following additional technical features:

[0009] The end cover is provided with multiple valve seat mounting positions, and the gas supply valve group is installed in the valve seat mounting positions. The end cover is provided with a first gas supply channel and a second gas supply channel. The first gas supply channel is connected to the first screening chamber and the gas supply valve group respectively, and the second gas supply channel is connected to the gas supply valve group in the second screening chamber respectively.

[0010] The valve seat has four mounting positions, and the gas supply valve group includes a first inlet valve and a first outlet valve that are respectively connected to the first screening chamber, and a second inlet valve and a second outlet valve that are respectively connected to the second screening chamber.

[0011] The first gas delivery channel includes a first main line and a first branch line. The first branch line is connected to the first inlet valve and the first outlet valve, respectively. The first main line is connected to the first branch line and the first screening chamber, respectively. The second gas delivery channel includes a second main line and a second branch line. The second branch line is connected to the second inlet valve and the second outlet valve, respectively. The second main line is connected to the second branch line and the second screening chamber, respectively.

[0012] A first blocking ball is provided in the first main road and the first branch road respectively, and the first blocking ball is interference-fitted with the inner wall of the first branch road and the first main road; a second blocking ball is provided in the second main road and the second branch road respectively, and the second blocking ball is interference-fitted with the inner wall of the second branch road and the second main road.

[0013] The end cap also has an air intake, which includes an air inlet and an air intake channel. The air intake channel is connected to the first branch and the second branch respectively. The air inlet can be connected to an air delivery device to deliver air to the air intake channel.

[0014] The end cap is provided with a mounting seat at each of the valve seat mounting positions. The mounting seat is provided with a first mounting hole. The gas supply valve group includes a plurality of solenoid valves. The solenoid valve is provided with a second mounting hole that is adapted to the first mounting hole. The solenoid valve is detachably connected to the end cap by a first connecting rod that passes through the first mounting hole and the second mounting hole in sequence.

[0015] This application also provides an oxygen generator, including the integrated cover assembly as described above, a frame, and a molecular sieve adsorption tower mounted on the frame. The frame is provided with an exhaust port aligned with the mounting portion, and the exhaust portion of the gas delivery valve assembly is aligned and communicates with the exhaust port.

[0016] The oxygen concentrator described in this application also includes the following additional technical features:

[0017] The frame also includes limiting plates on both sides of the exhaust port. The frame, the limiting plates, and the end cap cooperate to form the installation space. The two sides of the gas valve assembly abut against the limiting plates respectively.

[0018] The molecular sieve adsorption tower includes a first sieving chamber and a second sieving chamber. The molecular sieve adsorption tower includes a tower body and a lower cover installed at the bottom of the tower body. An end cap is installed on the lower cover. The lower cover has a first through hole communicating with the first sieving chamber and a second through hole communicating with the second sieving chamber. The end cap has a first gas supply connector and a second gas supply connector. The first gas supply channel, the first gas supply connector, and the first through hole are sequentially connected to the first sieving chamber. The second gas supply channel, the second gas supply connector, and the second through hole are sequentially connected to the second sieving chamber.

[0019] Both the first gas supply connector and the second gas supply connector have sealing ring grooves on their outer walls. The sealing ring grooves are filled with elastic sealing ring ribs, which abut against the inner walls of the first through hole and the second through hole, respectively.

[0020] The molecular sieve adsorption tower further includes a gas storage chamber that is connected to the first sieving chamber and the second sieving chamber respectively. The lower cover is provided with a third through hole that is connected to the gas storage chamber. The integrated cover is provided with a third gas supply connector. One end of the third gas supply connector is connected to the gas storage chamber through the third through hole, and the other end is connected to the gas supply pipeline.

[0021] The end cap is provided with multiple third mounting holes, and the frame is provided with a fourth mounting hole that aligns with the third mounting holes. The integrated cover is detachably connected to the frame via a second connecting rod that passes through the third mounting holes and the fourth mounting hole in sequence. One of the frame and the integrated cover is provided with a guide protrusion, and the other is provided with a guide hole. When the integrated cover is installed on the frame, the guide protrusion is located within the guide hole.

[0022] The end cap has a mounting boss on the side opposite to the molecular sieve adsorption tower. The mounting boss has a first positioning hole. The oxygen generator also includes a display circuit assembly. The display circuit assembly has a second positioning hole. The display circuit assembly is detachably mounted to the mounting boss by a third connecting rod that passes through the second positioning hole and the first positioning hole in sequence.

[0023] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0024] 1. The integrated cover assembly of this application includes an end cap installed at the end of the molecular sieve adsorption tower, and the end cap has a mounting part extending out of the molecular sieve adsorption tower. The mounting part provides a fixed installation space for the gas delivery valve assembly, eliminating the need for setting up pipelines to connect the gas delivery valve assembly and the molecular sieve adsorption tower. In this way, on the one hand, the space occupied by the gas delivery valve assembly is reduced, making the structural layout of the components on the frame more compact, which helps to miniaturize the oxygen generator; on the other hand, the gas delivery valve assembly is installed in the mounting part, which greatly shortens the distance between the gas delivery valve assembly and the first and second sieving chambers, thereby reducing the airflow transport path when the gas delivery valve assembly exchanges airflow with the molecular sieve adsorption device, which helps to improve the airflow exchange rate.

[0025] Furthermore, the mounting space formed by the cooperation between the mounting section and the frame provides a relatively stable installation environment for the gas delivery valve assembly. The abutment between the gas delivery valve assembly and the frame effectively enhances the installation stability of the gas delivery valve assembly. During the handling and relocation of the oxygen concentrator, the cooperation and support between the mounting section and the frame can significantly reduce the shaking of the gas delivery valve assembly caused by external vibrations and bumpy environments, thus ensuring the operational stability of the gas delivery valve assembly. During the operation of the oxygen concentrator, a stable gas delivery valve assembly installation can reduce noise caused by vibration, creating a quieter operating environment for users, which is especially important for home oxygen therapy users and noise-sensitive medical facilities. At the same time, the stable structure also reduces the probability of failure caused by loose components, extends the service life of the equipment, and reduces maintenance costs and downtime. Whether for medical use or industrial production, it can significantly improve the reliability and efficiency of the equipment.

[0026] 2. As a preferred embodiment of this application, the multiple valve seat mounting positions provided on the end cap offer precise and clear installation references for each component of the gas delivery valve assembly. Each gas delivery valve in the assembly corresponds to a specific valve seat mounting position, avoiding interference between the gas delivery valves and improving the operational stability of the gas delivery valve assembly. During production assembly, workers can quickly locate and install the gas delivery valve assembly based on the valve seat mounting positions, avoiding repeated calibration and adjustment, significantly improving assembly efficiency, and greatly shortening the production cycle of a single oxygen generator. Simultaneously, the standardized mounting position design is compatible with automated assembly equipment, facilitating large-scale, high-precision production, reducing manual assembly errors, and ensuring consistent product quality.

[0027] The integrated first and second gas delivery channels inside the end cap replace the traditional complex external piping, greatly simplifying the internal structure of the oxygen concentrator. The short paths and excellent sealing of the built-in first and second gas delivery channels effectively reduce gas loss and leakage risks, ensuring a stable airflow supply. Furthermore, the simple internal structure of the end cap facilitates quick identification and repair by maintenance personnel, reducing maintenance difficulty and costs, and shortening equipment downtime.

[0028] 3. In a preferred embodiment of this application, the gas delivery valve assembly is constructed to include a first inlet valve and a first outlet valve, a second inlet valve and a second outlet valve, corresponding to the inlet and outlet of the first screening chamber and the second screening chamber, respectively. Each valve operates independently and does not interfere with the others, ensuring the operational stability of the gas delivery valve assembly. Furthermore, four valve seat mounting positions are provided, with the four gas delivery valves installed in the four valve seat mounting positions, further ensuring their independent operation. When some gas delivery valves in the gas delivery valve assembly are damaged or require repair, they can simply be removed from their corresponding valve seat mounting positions for repair and replacement, reducing downtime and improving maintenance efficiency.

[0029] 4. As a preferred embodiment of this application, the aligned connection design between the exhaust port of the frame and the exhaust section of the gas delivery valve assembly optimizes the exhaust path of the oxygen generator. Exhaust gases such as nitrogen generated by the molecular sieve adsorption device are discharged through the exhaust section of the gas delivery valve assembly and then through the exhaust port on the frame to the outside. This eliminates the need for setting up exhaust gas pipelines, reduces additional exhaust pipeline connections, helps optimize the structural design of the oxygen generator, and contributes to its miniaturization. Furthermore, during assembly, the aligned installation of the exhaust port and the exhaust section serves a positioning function, indicating the alignment of the exhaust section of the gas delivery valve assembly, assisting in the installation of the gas delivery valve assembly, improving assembly efficiency, and shortening assembly time. In later maintenance, the simple exhaust structure facilitates inspection and cleaning by maintenance personnel, reducing maintenance difficulty and costs, and ensuring the continuous and stable operation of the oxygen generator.

[0030] 5. As a preferred embodiment of this application, the installation space formed by the frame, the limiting plate, and the end cap provides a stable and reliable installation environment for the gas delivery valve assembly. When the oxygen generator experiences bumps due to handling or movement, the limiting plate restricts the gas delivery valve assembly from both sides, ensuring its stability during transportation and operation, effectively reducing vibration displacement, and greatly enhancing the equipment's operational stability. Furthermore, during assembly, the limiting plate also provides positioning guidance for the gas delivery valve assembly. Assembly personnel only need to place the gas delivery valve assembly into the installation space and allow it to abut against the limiting plate to complete the initial positioning, significantly shortening assembly time and improving assembly efficiency. Simultaneously, the enclosed installation space effectively prevents dust and impurities from entering the gas delivery valve assembly, reducing the probability of valve blockage and wear caused by impurities in dusty industrial environments or daily household use, extending equipment lifespan, and reducing maintenance costs. Attached Figure Description

[0031] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0032] Figure 1 This is a structural schematic diagram of a portion of the oxygen generator according to one embodiment of this application;

[0033] Figure 2 This is a cross-sectional view of the integrated cover assembly according to one embodiment of this application;

[0034] Figure 3 This is a schematic diagram of the integrated cover assembly according to one embodiment of this application;

[0035] Figure 4 This is a schematic diagram of the frame structure according to one embodiment of this application;

[0036] Figure 5 This is a schematic diagram of the lower cover structure according to one embodiment of this application;

[0037] Figure 6 This is a schematic diagram of a portion of the molecular sieve adsorption tower according to one embodiment of this application.

[0038] List of components and reference numerals:

[0039] 1 frame, 11 exhaust vents, 12 limit plates;

[0040] 2 Molecular sieve adsorption tower, 21 First sieving chamber, 22 Second sieving chamber, 23 Gas storage chamber, 24 Lower cover, 241 First through hole, 242 Second through hole, 243 Third through hole;

[0041] 3. End cap, 31. Mounting part, 32. First air supply channel, 321. First main channel, 322. First branch channel, 33. Second air supply channel, 331. Second main channel, 332. Second branch channel, 34. Air intake part, 341. Air intake channel, 342. Air inlet, 35. First air supply connector, 36. Second air supply connector, 37. Exhaust part, 371. Exhaust passage, 372. Exhaust port;

[0042] 4. Installation space;

[0043] 5. Gas supply valve group, 51 first inlet valve, 52 first outlet valve, 53 second inlet valve, 54 second outlet valve;

[0044] 6. First block;

[0045] 7. Second block;

[0046] 8 mounting brackets;

[0047] 9. Sealing ring groove;

[0048] 10. Install bosses;

[0049] 110 Third gas supply connector. Detailed Implementation

[0050] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0051] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.

[0052] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0054] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0055] like Figures 1 to 6As shown, an integrated cover assembly for an oxygen generator is disclosed. The oxygen generator includes a frame 1, on which a molecular sieve adsorption tower 2 including a first sieving chamber 21 and a second sieving chamber 22 is mounted. The integrated cover assembly includes an end cap 3, which is installed at the end of the molecular sieve adsorption tower 2 and has a mounting portion 31 extending out of the molecular sieve adsorption tower 2. An installation space 4 is formed between the mounting portion 31 and the frame 1. The integrated cover assembly also includes a gas delivery valve assembly 5 installed in the mounting portion 31. The gas delivery valve assembly 5 is at least partially located within the installation space 4 and abuts against the frame 1.

[0056] The integrated cover assembly of this application includes an end cap 3 installed at the end of the molecular sieve adsorption tower 2, and the end cap 3 has a mounting part 31 extending out of the molecular sieve adsorption tower 2. The mounting part 31 provides a fixed installation space 4 for the gas delivery valve assembly 5, eliminating the need for setting up pipelines to connect the gas delivery valve assembly 5 and the molecular sieve adsorption tower 2. In this way, on the one hand, the space occupied by the gas delivery valve assembly 5 is reduced, making the structural layout of the components on the frame 1 more compact, which helps to miniaturize the oxygen generator; on the other hand, the gas delivery valve assembly 5 is installed in the mounting part 31, which greatly shortens the distance between the gas delivery valve assembly 5 and the first screening chamber 21 and the second screening chamber 22, thereby reducing the air transport path when the gas delivery valve assembly 5 exchanges air with the molecular sieve adsorption device, which helps to improve the air exchange rate.

[0057] Furthermore, the mounting space 4 formed by the cooperation between the mounting section 31 and the frame 1 provides a relatively stable installation environment for the gas delivery valve assembly 5. The abutment between the gas delivery valve assembly 5 and the frame 1 effectively enhances the installation stability of the gas delivery valve assembly 5. During the handling and relocation of the oxygen concentrator, the cooperation and support between the mounting section 31 and the frame 1 can significantly reduce the shaking of the gas delivery valve assembly 5 caused by external vibrations and bumpy environments, thereby ensuring the working stability of the gas delivery valve assembly 5. During the operation of the oxygen concentrator, the stable installation of the gas delivery valve assembly 5 can reduce noise caused by vibration, creating a quieter operating environment for users, which is especially important for home oxygen therapy users and noise-sensitive medical facilities. At the same time, the stable structure also reduces the probability of failure caused by loose parts, extends the service life of the equipment, and reduces maintenance costs and downtime. Whether for medical use or industrial production, it can significantly improve the reliability and efficiency of the equipment.

[0058] Specifically, the mounting part 31 is integrally formed with the end cap 3 as part of the end cap 3. The main body of the end cap 3 covers the molecular sieve adsorption tower 2 and is connected to the molecular sieve adsorption tower 2. The molecular sieve adsorption tower 2 is installed on the side of the frame 1, and the frame 1 is provided with a horizontally extending frame plate, which forms an installation space 4 between the frame plate and the mounting part 31.

[0059] As a preferred embodiment of this application, such as Figure 1 , Figure 2As shown, the end cover 3 is provided with multiple valve seat mounting positions, and the gas supply valve group 5 is installed in the valve seat mounting position. The end cover 3 is provided with a first gas supply channel 32 and a second gas supply channel 33. The first gas supply channel 32 is connected to the first screening chamber 21 and the gas supply valve group 5 respectively, and the second gas supply channel 33 is connected to the second screening chamber 22 and the gas supply valve group 5 respectively.

[0060] The multiple valve seat mounting positions on the end cap 3 provide precise and clear installation benchmarks for each component of the gas delivery valve assembly 5. Each gas delivery valve in the gas delivery valve assembly 5 corresponds to a specific valve seat mounting position, avoiding interference between gas delivery valves and improving the operational stability of the gas delivery valve assembly 5. During production assembly, workers can quickly locate and install the gas delivery valve assembly 5 based on the valve seat mounting positions, avoiding repeated calibration and adjustment, significantly improving assembly efficiency and greatly shortening the production cycle of a single oxygen generator. Simultaneously, the standardized mounting position design is compatible with automated assembly equipment, facilitating large-scale, high-precision production, reducing manual assembly errors, and ensuring consistent product quality.

[0061] The first and second gas delivery channels 33 integrated inside the end cap 3 replace the traditional complex external piping, greatly simplifying the internal structure of the oxygen generator. The first and second gas delivery channels 32 and 33, built into the end cap 3, have short paths and good sealing, effectively reducing gas loss and leakage risks, and ensuring a stable airflow supply. Furthermore, the simple internal structure of the end cap 3 facilitates quick identification and repair by maintenance personnel, reducing maintenance difficulty and costs, and shortening equipment downtime.

[0062] As a preferred embodiment of this implementation, such as Figure 1 As shown, there are four valve seat mounting positions. The gas supply valve group 5 includes a first inlet valve 51 and a first outlet valve 52 that are respectively connected to the first screening chamber 21, and a second inlet valve 53 and a second outlet valve 54 that are respectively connected to the second screening chamber 22.

[0063] The gas delivery valve assembly 5 is constructed including a first inlet valve 51 and a first outlet valve 52, a second inlet valve 53 and a second outlet valve 54, corresponding to the inlet and outlet of the first screening chamber 21 and the second screening chamber 22, respectively. Each valve operates independently and does not interfere with the others, ensuring the operational stability of the gas delivery valve assembly 5. Furthermore, four valve seat mounting positions are provided, with the four gas delivery valves installed in four separate valve seat mounting positions, further ensuring their independent operation. When some gas delivery valves in the gas delivery valve assembly 5 are damaged or require repair, they can simply be removed from their corresponding valve seat mounting positions for repair and replacement, reducing downtime and improving maintenance efficiency.

[0064] As a preferred example in this embodiment, such as Figure 2As shown, the first gas transmission channel 32 includes a first main channel 321 and a first branch channel 322. The first branch channel 322 is connected to the first intake valve 51 and the first outlet valve 52, respectively. The first main channel 321 is connected to the first branch channel 322 and the first screening chamber 21, respectively. The second gas transmission channel 33 includes a second main channel 331 and a second branch channel 332. The second branch channel 332 is connected to the second intake valve 53 and the second outlet valve 54, respectively. The second main channel 331 is connected to the second branch channel 332 and the second screening chamber 22, respectively.

[0065] The arrangement of the first main path 321 and the first branch path 322, as well as the second main path 331 and the second branch path 332, reduces the limitations on the relative position between the molecular sieve adsorption tower 2 and the external gas transmission equipment. Specifically, the end cap 3 has multiple recesses that are recessed away from the molecular sieve adsorption tower 2. The recesses are integrally formed with the end cap 3, and the multiple recesses cooperate with the molecular sieve adsorption tower 2 to form the first main path 321, the first branch path 322, the second main path 331, and the second branch path 332. The first main road 321 and the first branch road 322 are connected in the middle. The first inlet valve 51 and the first outlet valve 52 are respectively connected to the two ends of the first branch road 322. When the gas pipeline delivers air into the first screening chamber 21 through the first inlet valve 51, the first outlet valve 52 is closed, and the gas enters the first screening chamber 21 in sequence through the first branch road 322 and the first main road 321. When the first screening chamber 21 needs to exhaust gas, the first inlet valve 51 is closed and the first outlet valve 52 is opened, and the exhaust gas is discharged from the first screening chamber 21 through the first main road 321, the first branch road 322 and the first outlet valve 52. The working process of the second screening chamber 22 is the same. The second main road 331 and the second branch road 332 are connected in the middle. The second inlet valve 53 and the second outlet valve 54 are respectively connected to the two ends of the second branch road 332. When the gas pipeline delivers air into the second screening chamber 22 through the second inlet valve 53, the second outlet valve 54 is closed. The gas enters the second screening chamber 22 in sequence through the second branch road 332 and the second main road 331. When the second screening chamber 22 needs to exhaust gas, the second inlet valve 53 is closed and the second outlet valve 54 is opened. The exhaust gas is discharged from the second screening chamber 22 through the second main road 331, the second branch road 332 and the second outlet valve 54.

[0066] As a preferred method in this example, such as Figure 2 As shown, a first blocking ball 6 is provided in the first main road 321 and the first branch road 322 respectively, and the first blocking ball 6 is interference-fitted with the inner wall of the first branch road 322 and the first main road 321; a second blocking ball 7 is provided in the second main road 331 and the second branch road 332 respectively, and the second blocking ball 7 is interference-fitted with the inner wall of the second branch road 332 and the second main road 331.

[0067] From a maintenance cost perspective, the first sealing ball 6 and the second sealing ball 7 have a simple structure, low cost, and are easy to replace. They require no special tools or complex procedures and can be replaced within minutes, significantly reducing maintenance time and labor costs. Even if the sealing balls wear out during long-term operation of the oxygen generator, they can be replaced quickly and promptly to ensure sealing performance. Preferably, the first sealing ball 6 and the second sealing ball 7 are rubber parts made of rubber material.

[0068] As another preferred method in this example, such as Figure 2 , Figure 3 As shown, the end cap 3 also has an air inlet 34, which includes an air inlet 342 and an air inlet channel 341. The air inlet channel 341 is connected to the first branch 322 and the second branch 332 respectively. The air inlet 342 can be connected to an air supply device to supply air to the air inlet channel 341.

[0069] The air intake 34 enables the supply of air to the first branch 322 and the second branch 332 respectively through the same air supply equipment. When the air supply equipment needs to supply air to the first screening chamber 21, the first air intake valve 51 is opened and the second air intake valve 53 is closed. The air supplied by the air supply equipment enters the first screening chamber 21 sequentially through the air intake channel 341, the first branch 322, and the first main channel 321. When the air supply equipment needs to supply air to the second screening chamber 22, the second air intake valve 53 is opened and the first air intake valve 51 is closed. The air supplied by the air supply equipment enters the second screening chamber 22 sequentially through the air intake channel 341, the second branch 332, and the second main channel 331.

[0070] As another preferred embodiment of this implementation, such as Figure 3 As shown, the end cover 3 is provided with a mounting seat 8 at each valve seat mounting position. The mounting seat 8 is provided with a first mounting hole. The gas supply valve group 5 includes multiple solenoid valves. The solenoid valves are provided with a second mounting hole that is adapted to the first mounting hole. The solenoid valves are detachably connected to the end cover 3 through a first connecting rod that passes through the first mounting hole and the second mounting hole in sequence.

[0071] The mounting seats 8, located at each valve seat mounting position, provide a standardized installation interface for the solenoid valves. This allows assembly personnel to quickly position the solenoid valves and secure them via the first connecting rod, significantly reducing the installation time for a single solenoid valve and greatly improving production efficiency. This design is also compatible with automated assembly equipment, enabling large-scale, high-precision production, reducing labor costs, and improving product quality consistency. As a vulnerable component, the solenoid valve may malfunction during long-term operation of the oxygen generator. When a solenoid valve fails, maintenance personnel can quickly replace the faulty solenoid valve by simply unscrewing the first connecting rod, without disassembling the entire gas delivery valve assembly 5, thus significantly reducing maintenance time.

[0072] Preferably, the first connecting rod is a screw, the first mounting hole and the second mounting hole are threaded holes, and the solenoid valve is threadedly connected to the mounting base 8.

[0073] like Figure 1 , Figure 4 As shown, an oxygen generator includes an integrated cover assembly as described above, a frame 1, and a molecular sieve adsorption tower 2 mounted on the frame 1. The frame 1 is provided with an exhaust port 11 aligned with the mounting part 31, and the exhaust part 37 of the gas delivery valve group 5 is aligned and connected to the exhaust port 11.

[0074] The aligned connection between the exhaust port 11 of the frame 1 and the exhaust section 37 of the gas delivery valve assembly 5 optimizes the exhaust path of the oxygen generator. Exhaust gases such as nitrogen generated by the molecular sieve adsorption device are discharged through the exhaust section 37 of the gas delivery valve assembly 5 and then through the exhaust port 11 on the frame 1 to the outside. This eliminates the need for separate exhaust pipes, reduces additional exhaust pipe connections, and helps optimize the structural design of the oxygen generator, contributing to its miniaturization. Furthermore, during assembly, the aligned installation of the exhaust port 11 and the exhaust section 37 serves a positioning function, indicating the alignment of the exhaust section 37 of the gas delivery valve assembly 5, assisting in the installation of the gas delivery valve assembly 5, improving assembly efficiency, and shortening assembly time. In later maintenance, the simple exhaust structure facilitates inspection and cleaning by maintenance personnel, reducing maintenance difficulty and costs, and ensuring the continuous and stable operation of the oxygen generator.

[0075] Preferably, the exhaust section 37 has an exhaust passage 371 and an exhaust port 372. The exhaust passage 371 is connected to the first branch 322 and the second branch 332 respectively. Multiple exhaust through holes 11 are provided at intervals. The exhaust port 372 abuts against the frame 1 and covers all the exhaust through holes 11. When the first screening chamber 21 needs to exhaust, the second exhaust valve 54 is closed, and the first exhaust valve 52 is opened. The exhaust gas passes through the first main passage 321, the first branch 322, and then through the exhaust passage before being discharged through the exhaust through holes 11. When the second screening chamber 22 needs to exhaust, the first exhaust valve 52 is closed, and the second exhaust valve 54 is opened. The exhaust gas passes through the second main passage 331, the second branch 332, and then through the exhaust passage before being discharged through the exhaust through holes 11.

[0076] As a preferred embodiment of this application, such as Figure 1 , Figure 4 As shown, the frame 1 also includes limiting plates 12 located on both sides of the exhaust port 11. The frame 1, limiting plates 12, and end caps 3 cooperate to form an installation space 4. The two sides of the gas valve assembly 5 abut against the limiting plates 12 respectively.

[0077] The mounting space 4, formed by the frame 1, the limiting plate 12, and the end cover 3, provides a stable and reliable installation environment for the gas delivery valve assembly 5. When the oxygen generator experiences bumps during handling or movement, the limiting plate 12 restricts the gas delivery valve assembly 5 from both sides, ensuring its stability during transportation and operation, effectively reducing vibration displacement and greatly enhancing equipment operational stability. Furthermore, during assembly, the limiting plate 12 also provides positioning and guidance for the installation of the gas delivery valve assembly 5. Assembly personnel only need to place the gas delivery valve assembly 5 into the mounting space 4 and allow it to abut against the limiting plate 12 to complete initial positioning, significantly shortening assembly time and improving efficiency. Simultaneously, the enclosed mounting space 4 effectively prevents dust and impurities from entering the gas delivery valve assembly 5, reducing the probability of valve blockage and wear caused by impurities in dusty industrial environments or daily household use, extending equipment lifespan, and reducing maintenance costs.

[0078] Specifically, the limiting plate 12 extends vertically and is fixedly connected to the frame 1.

[0079] As a preferred embodiment of this implementation, such as Figure 1 , Figure 5 , Figure 6 As shown, the molecular sieve adsorption tower 2 includes a first sieving chamber 21 and a second sieving chamber 22. The molecular sieve adsorption tower 2 includes a tower body and a lower cover 24 installed at the bottom of the tower body. An end cover 3 is installed on the lower cover 24. The lower cover 24 is provided with a first through hole 241 communicating with the first sieving chamber 21 and a second through hole 242 communicating with the second sieving chamber 22. The end cover 3 is provided with a first gas supply connector 35 and a second gas supply connector 36. The first gas supply channel 32, the first gas supply connector 35, the first through hole 241 are sequentially connected to the first sieving chamber 21, and the second gas supply channel 33, the second gas supply connector 36, the second through hole 242 are sequentially connected to the second sieving chamber 22.

[0080] By precisely connecting the first gas supply connector 35 and the second gas supply connector 36 of the integrated cover with the first through hole 241 and the second through hole 242 of the lower cover 24 of the molecular sieve adsorption tower 2, a simple and efficient gas transmission path is constructed, reducing intermediate connection links, lowering the risk of gas leakage, and ensuring the stable operation of the oxygen supply system. The clear and stable gas transmission path reduces gas transmission loss and contamination. During equipment maintenance and repair, maintenance personnel can quickly disconnect and reconnect to inspect and maintain the molecular sieve adsorption tower 2 or the integrated cover, shortening maintenance time, reducing maintenance costs, and ensuring the efficient operation of the production line.

[0081] As a preferred example in this embodiment, such as Figure 3 , Figure 5 As shown, the outer walls of the first gas connector 35 and the second gas connector 36 are provided with sealing ring grooves 9. The sealing ring grooves 9 are filled with elastic sealing ring ribs, which abut against the inner walls of the first through hole 241 and the second through hole 242, respectively.

[0082] This application features a sealing ring groove 9 and an elastic sealing ring rib on the outer wall of the gas delivery connector, providing a reliable sealing guarantee for gas transmission. During long-term use, the oxygen concentrator may experience loosening of the gas path due to factors such as equipment vibration and thermal expansion and contraction caused by temperature changes. The elastic sealing ring rib tightly abuts against the inner walls of the first through hole 241 and the second through hole 242, maintaining a good sealing effect even under equipment vibration and temperature changes, effectively preventing gas leakage. Furthermore, the elastic sealing ring rib has a simple structure and is easy to replace. After long-term operation of the oxygen concentrator, if the sealing ring rib wears or ages, maintenance personnel can quickly replace it without complex tools or professional skills, ensuring continued reliable sealing performance. This design extends the service life of the gas connection parts, reduces equipment maintenance frequency and costs, improves the stability and reliability of the oxygen concentrator's operation, and provides more durable and efficient service for medical and industrial applications.

[0083] Preferably, the elastic sealing ring rib is a rubber component made of rubber material.

[0084] As another preferred example under this embodiment, such as Figure 3 , Figure 5 As shown, the molecular sieve adsorption tower 2 also includes a gas storage chamber 23 that is connected to the first sieving chamber 21 and the second sieving chamber 22 respectively. The lower cover 24 is provided with a third through hole 243 that is connected to the gas storage chamber 23. The integrated cover is provided with a third gas supply connector 110. One end of the third gas supply connector 110 is connected to the gas storage chamber 23 through the third through hole 243, and the other end is connected to the gas supply pipeline.

[0085] By adding a gas storage chamber 23 and connecting it to the integrated cover via a third gas supply connector 110, the gas storage and transmission functions of the oxygen generator are improved, enhancing the stability and flexibility of the oxygen supply. The oxygen produced by the oxygen generator can be temporarily stored in the gas storage chamber 23, and the oxygen output power can be adjusted according to usage needs to ensure a stable oxygen supply. The gas storage chamber 23 is located inside the molecular sieve adsorption tower 2 and is connected to both the first sieving chamber 21 and the second sieving chamber 22, eliminating the need for external gas storage equipment. This facilitates the miniaturization of the molecular sieve adsorption tower 2, thereby contributing to the miniaturization of the oxygen generator.

[0086] Preferably, the gas storage chamber 23 is located between the first screening chamber 21 and the second screening chamber 22, which can minimize the gas path length between the gas storage chamber 23 and the first screening chamber 21 and the second screening chamber 22 respectively.

[0087] In a preferred embodiment of this application, the end cover 3 is provided with a plurality of third mounting holes, the frame 1 is provided with a fourth mounting hole that aligns with the third mounting holes, and the integrated cover is detachably connected to the frame 1 by a second connecting rod that passes through the third mounting holes and the fourth mounting holes in sequence.

[0088] The detachable connection between the end cap 3 and the frame 1 via the third mounting hole, the fourth mounting hole, and the second connecting rod greatly facilitates the production, assembly, maintenance, and repair of the oxygen generator. During production, workers can quickly align the integrated cap with the frame 1 using the third and fourth mounting holes and secure it with the second connecting rod. This simple and quick operation significantly reduces assembly time and improves production efficiency compared to traditional, complex connection methods. This standardized connection method is also compatible with automated assembly equipment, enabling large-scale production, reducing manual assembly errors, and ensuring consistent product quality. The detachable connection method offers significant advantages for equipment maintenance. When internal components of the oxygen generator malfunction or require regular maintenance, maintenance personnel do not need to perform extensive disassembly. They can simply unscrew the second connecting rod to separate the integrated cap, allowing for convenient and quick inspection, repair, and replacement of internal components such as the gas delivery valve group 5 and the gas delivery channel.

[0089] Preferably, the second connecting rod is a screw, the third mounting hole and the fourth mounting hole are threaded holes, and the end cover 3 is threadedly connected to the frame 1.

[0090] Preferably, one of the frame 1 and the integrated cover is provided with a guide protrusion, and the other is provided with a guide hole. When the integrated cover is installed on the frame 1, the guide protrusion is located in the guide hole.

[0091] The guide protrusions and guide holes of the frame 1 and the integrated cover are designed to further optimize the assembly process of the oxygen concentrator. During production and assembly, the guide structure provides precise positioning for the installation of the integrated cover. Assembly personnel do not need to repeatedly adjust the position; they only need to align the guide protrusions with the guide holes to quickly position the frame 1 and the integrated cover. This eliminates the need for assembly personnel to precisely align the integrated cover with the frame 1, thus improving the assembly efficiency of the integrated cover.

[0092] As a preferred embodiment of this application, such as Figure 1 As shown, the end cap 3 has a mounting boss 10 on the side away from the molecular sieve adsorption tower 2. The mounting boss 10 has a first positioning hole. The oxygen generator also includes a display circuit assembly. The display circuit assembly has a second positioning hole. The display circuit assembly is detachably mounted on the mounting boss 10 by a third connecting rod that passes through the second positioning hole and the first positioning hole in sequence.

[0093] The mounting boss 10 provides a mounting platform for the display circuit assembly, allowing the end cover 3 to further integrate the function of mounting the display circuit assembly in addition to providing a mounting position for the gas valve assembly 5. This further integration of functions contributes to the miniaturization of the oxygen concentrator. Furthermore, the display circuit assembly is detachably connected to the mounting boss 10 via a third connecting rod that passes through the second positioning hole and the first positioning hole in sequence, facilitating disassembly and maintenance of the display circuit assembly.

[0094] Preferably, the third connecting rod is a screw, the first positioning hole and the second positioning hole are threaded holes, and the display circuit assembly is threadedly connected to the mounting boss 10.

[0095] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0096] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0097] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. An integrated cover assembly for an oxygen concentrator, the oxygen concentrator including a frame, the frame being equipped with a molecular sieve adsorption tower including a first sieving chamber and a second sieving chamber, characterized in that, The integrated cover assembly includes an end cap, which is installed at the end of the molecular sieve adsorption tower and has a mounting portion extending out of the molecular sieve adsorption tower. An installation space is formed between the mounting portion and the frame. The integrated cover assembly also includes a gas supply valve assembly installed in the mounting portion. The gas supply valve assembly is at least partially located within the installation space and abuts against the frame.

2. The integrated cover assembly according to claim 1, characterized in that, The end cover is provided with multiple valve seat mounting positions, and the gas supply valve group is installed in the valve seat mounting positions. The end cover is provided with a first gas supply channel and a second gas supply channel. The first gas supply channel is connected to the first screening chamber and the gas supply valve group respectively, and the second gas supply channel is connected to the gas supply valve group in the second screening chamber respectively.

3. The integrated cover assembly according to claim 2, characterized in that, The valve seat has four mounting positions, and the gas supply valve group includes a first inlet valve and a first outlet valve that are respectively connected to the first screening chamber, and a second inlet valve and a second outlet valve that are respectively connected to the second screening chamber.

4. The integrated cover assembly according to claim 3, characterized in that, The first gas transmission channel includes a first main line and a first branch line. The first branch line is connected to the first inlet valve and the first outlet valve, respectively. The first main line is connected to the first branch line and the first screening chamber, respectively. The second gas transmission channel includes a second main line and a second branch line. The second branch line is connected to the second inlet valve and the second outlet valve, respectively. The second main line is connected to the second branch line and the second screening chamber, respectively.

5. The integrated cover assembly according to claim 4, characterized in that, The first main road and the first branch road are respectively provided with a first blocking ball, and the first blocking ball is interference-fitted with the inner wall of the first branch road and the first main road; The second main road and the second branch road are each equipped with a second blocking ball, and the second blocking ball is interference-fitted with the inner wall of the second branch road and the second main road.

6. The integrated cover assembly according to claim 4, characterized in that, The end cap also has an air intake section, which includes an air inlet and an air intake channel. The air intake channel is connected to the first branch and the second branch respectively. The air inlet can be connected to an air delivery device to deliver air to the air intake channel.

7. The integrated cover assembly according to claim 2, characterized in that, The end cap is provided with a mounting seat at each of the valve seat mounting positions. The mounting seat is provided with a first mounting hole. The gas supply valve group includes multiple solenoid valves. The solenoid valve is provided with a second mounting hole that is adapted to the first mounting hole. The solenoid valve is detachably connected to the end cap through a first connecting rod that passes through the first mounting hole and the second mounting hole in sequence.

8. An oxygen generator, characterized in that, The assembly includes the integrated cover assembly as described in any one of claims 1 to 7, and further includes a frame and a molecular sieve adsorption tower mounted on the frame, wherein the frame is provided with an exhaust port aligned with the mounting portion, and the exhaust portion of the gas supply valve assembly is aligned and communicates with the exhaust port.

9. The oxygen generator according to claim 8, characterized in that, The frame also includes limiting plates on both sides of the exhaust port. The frame, the limiting plates, and the end cap cooperate to form the installation space. The two sides of the gas valve assembly abut against the limiting plates respectively.

10. The oxygen generator according to claim 8, characterized in that, The molecular sieve adsorption tower includes a first sieving chamber and a second sieving chamber. The molecular sieve adsorption tower includes a tower body and a lower cover installed at the bottom of the tower body. An end cap is installed on the lower cover. The lower cover has a first through hole communicating with the first sieving chamber and a second through hole communicating with the second sieving chamber. The end cap has a first gas supply connector and a second gas supply connector. The first gas supply channel, the first gas supply connector, and the first through hole are sequentially connected to the first sieving chamber. The second gas supply channel, the second gas supply connector, and the second through hole are sequentially connected to the second sieving chamber.

11. The oxygen generator according to claim 10, characterized in that, Both the first gas supply connector and the second gas supply connector have sealing ring grooves on their outer walls. The sealing ring grooves are filled with elastic sealing ring ribs, which abut against the inner walls of the first through hole and the second through hole, respectively.

12. The oxygen generator according to claim 10, characterized in that, The molecular sieve adsorption tower further includes a gas storage chamber that is connected to the first sieving chamber and the second sieving chamber respectively. The lower cover is provided with a third through hole that is connected to the gas storage chamber. The integrated cover is provided with a third gas supply connector. One end of the third gas supply connector is connected to the gas storage chamber through the third through hole, and the other end is connected to the gas supply pipeline.

13. The oxygen generator according to claim 8, characterized in that, The end cap is provided with a plurality of third mounting holes, and the frame is provided with a fourth mounting hole that aligns with the third mounting holes. The integrated cover is detachably connected to the frame by a second connecting rod that passes through the third mounting holes and the fourth mounting holes in sequence.

14. The oxygen generator according to claim 13, characterized in that, One of the frame and the integrated cover is provided with a guide protrusion, and the other is provided with a guide hole. When the integrated cover is installed on the frame, the guide protrusion is located in the guide hole.

15. The oxygen generator according to claim 8, characterized in that, The end cap has a mounting boss on the side opposite to the molecular sieve adsorption tower. The mounting boss has a first positioning hole. The oxygen generator also includes a display circuit assembly. The display circuit assembly has a second positioning hole. The display circuit assembly is detachably mounted to the mounting boss by a third connecting rod that passes through the second positioning hole and the first positioning hole in sequence.

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