Oxygen generator adopting exhaust integrated body to enhance stability

Abstract

The invention discloses an oxygen generator adopting an exhaust integrated body to enhance stability, and belongs to the technical field of oxygen generators, the oxygen generator comprises an integrated shell, an air compressor, a molecular sieve tower and an oxygen cabin, and all the modules are installed in the integrated shell; the integrated shell is composed of a mounting frame and an exhaust integrated body which are integrally formed, the mounting frame constructs a stable mounting space through a top plate, a mounting frame body, a bottom plate and side plates, the exhaust integrated body is arranged above the top plate and comprises an air exchange joint, a main air pipe and an extension arm with a flange piece, and an internal air channel is communicated with the air compressor and the molecular sieve tower. The integrated structure of the integrally-formed exhaust integrated body is used for replacing traditional hose connection, the problem that hose connection between modules is prone to loosening and disengaging is solved, the overall structural stability and structural strength of the oxygen generator are enhanced through the integrally-formed mounting frame, vibration and noise are reduced, and the oxygen generator is convenient to maintain and high in practicability. And stable oxygen generation in a portable state is ensured.

Description

Technical Field

[0001] This invention relates to the field of oxygen generator technology, and specifically to an oxygen generator that uses an exhaust system to enhance stability. Background Technology

[0002] An oxygen concentrator is a device used to produce oxygen and is widely used in people's lives. An oxygen concentrator usually includes a compressor, a fan, and a molecular sieve structure. Its principle is mainly based on air separation technology. By compressing air and utilizing the differences in the condensation points of various components in the air, oxygen and nitrogen are separated at a specific temperature through steps such as molecular sieves.

[0003] In existing oxygen concentrators, each module is an independent unit in terms of assembly structure. After the module components are installed on the same mounting platform, the oxygen airflow channels are connected by hoses. However, due to the high-frequency compression process of the air compressor, there will be significant vibration, causing the oxygen concentrator to vibrate as a whole, resulting in abnormal noise. Furthermore, the connection between the internal modules in the airway is only a simple hose clamp. After vibration, the airway interface may loosen or even detach, resulting in air leakage. The modules may collide with each other during personnel carrying and moving the machine. The overall stability and anti-interference ability of the oxygen concentrator are insufficient, making it impossible to achieve stable oxygen production in a portable state. Summary of the Invention

[0004] The technical problem to be solved by this invention is that the modules of an oxygen concentrator are only connected by simple hoses, which can cause the air pipe interface to loosen or even detach during operation, making it impossible to achieve stable oxygen production in a portable state. The purpose is to provide an oxygen concentrator that uses an integrated air intake to enhance stability, thereby solving the above-mentioned technical problem.

[0005] The present invention provides the following apparatus: An oxygen generator employing an integrated exhaust system to enhance stability includes an integrated housing, an air compressor, and a molecular sieve tower. The integrated housing comprises a one-piece molded mounting frame and a one-piece molded exhaust system. The mounting frame, with its top plate, main structure, and bottom plate forming a vertically connected installation space, and side plates on both sides reinforcing the overall support rigidity of the mounting frame, provides a stable assembly environment for the air compressor. The generator also includes an oxygen chamber for storing purified oxygen. The integrated housing includes: The integrated mounting frame includes a top plate, a bottom plate, and a mounting frame body. The top plate is installed at the top of the mounting frame body. An oxygen chamber is integrally installed on the side of the mounting frame body, and the bottom plate is installed at the bottom of the oxygen chamber. An air compressor is installed between the top plate and the bottom plate. The mounting frame body also includes two side plates, the upper and lower ends of which are connected to the bottom of the top plate and the top of the bottom plate, respectively. The top plate and the bottom plate are both located between the two side plates. A molecular sieve tower is coaxially embedded in each side plate, and the top plate is installed at the top of the molecular sieve tower. The integrated exhaust unit is located above the top plate of the mounting bracket. The intake unit includes an integrated air duct that is connected to the air inlet. It includes a central air exchange section, a main air pipe for air intake, and extension arms that connect to the molecular sieve tower at both ends. One end of the extension arm is provided with a flange for fixing to the molecular sieve tower. The intake unit has an air duct inside, the air duct of the extension arm is connected to the molecular sieve tower, and the air duct of the main air pipe is connected to the air compressor. The exhaust system and the top plate of the mounting frame are combined to form a top support structure for fixing the mounting frame and the molecular sieve tower. The molecular sieve tower is embedded between the top and bottom plates of the mounting frame. The exhaust system is located above the top plate. The central air exchange section is used to achieve centralized integration of the air duct. The extension arms at both ends are fixed to the molecular sieve tower through flanges. The exhaust system and the top plate work together to form a top support structure, which enables the molecular sieve tower to be stably embedded inside the mounting frame. This structural design realizes the replacement of traditional hose connection with integrated air duct integration.

[0006] Furthermore, the middle part of the limiting groove corresponding to the air exchange joint is provided with a through notch on both the upper and lower sides. The air exchange joint is installed at the notch, and the extension arm is installed in the limiting groove and abuts against the inner wall of the limiting groove. The bottom of the top plate is provided with a limiting groove adapted to the exhaust assembly. Through the limiting groove formed by the indentation along the extension arm and the through notch in the middle corresponding to the air exchange joint, the air exchange joint is precisely assembled at the notch position. The extension arm fits against the inner wall of the limiting groove to achieve positioning and installation. Then, the fit between the limiting groove and the extension arm restricts the displacement of the exhaust assembly and the notch forms a precise position for the air exchange joint. The connection between the exhaust assembly and the top plate is firm and connected to the hose of the original air passage, ensuring the stability of the air passage integrated structure and avoiding loosening of the interface due to component displacement during gas transmission.

[0007] Furthermore, the bottom of both ends of the top plate is recessed with grooves adapted to the shape of the extension arm and flange. The inner cavity of the groove is provided with annular sealing protrusions. The annular sealing protrusions can tightly fit the side wall of the flange, structurally achieving a sealed fixation between the flange and the top plate. The grooves form a wrapping limit for the extension arm and flange, preventing them from shaking during the operation of the oxygen generator. At the same time, the annular sealing protrusions enhance the sealing of the connection, preventing gas leakage while strengthening the connection strength of the interface.

[0008] Furthermore, the exhaust system is equipped with an extension arm structure, including a first extension arm and a second extension arm, corresponding to the molecular sieve towers at both ends. Each extension arm of the exhaust system has a gas channel running through it along its length. The first extension arm is configured as the first branch gas channel, and the second extension arm is configured as the second branch gas channel. The main gas pipe is configured as an intake channel, forming an independent intake channel. The gas transmission is orderly divided and centrally introduced through a reversing joint, avoiding interference between different flow paths. This replaces the traditional dispersed hose connection, reduces the number of interfaces, and structurally improves the stability of gas transmission.

[0009] Furthermore, the air exchange joint is recessed and has interconnected air slots, including an inlet slot, a first branch slot, a second branch slot, and an exhaust slot. Different air slots are respectively connected to the branch air passages of the extension arm and the inlet passages of the main air pipe. Since the invention uses a first molecular sieve tower and a second molecular sieve tower alternately, multiple orderly gas flow paths need to be constructed sequentially. The first branch slot is connected to the first branch air passage, the second branch air passage is connected to the second branch slot, and the inlet passage is connected to the inlet slot. The two molecular sieve towers connecting the oxygen chamber are connected by a reversing joint to enhance the continuity and stability of gas transmission, ensuring gas exchange between modules. The process is reliable. During oxygen production, by manipulating the ventilation system, air is first introduced into the first molecular sieve tower through the air inlet slot. The oxygen separated by the first molecular sieve tower enters the main air pipe through the first inlet of the gas exchange mechanism. Most of the oxygen enters the oxygen chamber, while a small portion enters the second molecular sieve tower through the first branch air channel and the first branch air slot of the ventilation system. The second molecular sieve tower further purifies this small portion of oxygen. Then, air is introduced into the second molecular sieve tower through the ventilation system, where the second molecular sieve tower separates the oxygen from the air and outputs the separated oxygen and the further purified oxygen together to the oxygen chamber.

[0010] Furthermore, the gas exchange joint is equipped with a reversing valve for controlling the switching of connections between gas slots. The reversing valve controls the connection and disconnection between the first and second gas slots, the inlet slot, and the exhaust slot. The gas switching process can be automatically controlled using the reversing valve. Since the gas exchange ends of the reversing joint are on the same side, a changeable channel can be formed inside the reversing valve, connecting different slots according to the oxygen production process. For example, during gas intake, the connection between the inlet slot and the first or second gas slot is opened, allowing the first or second molecular sieve tower to operate. When the two molecular sieve towers are in operation... During the gas exchange process, the connection between the first gas trough, the inlet trough, and the second gas trough is opened. Due to the lower gas pressure in the second molecular sieve tower, air and a small portion of oxygen from the first molecular sieve tower are introduced into the second molecular sieve tower. The second molecular sieve tower separates the oxygen from the air and outputs the separated oxygen and further purified oxygen together to the oxygen chamber. The reversing valve ensures the orderly switching of gas exchange during oxygen production. At the same time, the integrated assembly of the reversing valve and the air exchange joint replaces the traditional connection between distributed control components and hoses, reducing the need for additional interface settings.

[0011] Furthermore, the exhaust channel is equipped with a silencing component. The air exchanger has multiple exhaust holes running through the bottom of the exhaust channel's inner cavity. Due to the high exhaust pressure, the gas tends to concentrate in some of the smaller holes, causing a sharp "whistling" sound during exhaust. To mitigate this, a porous material such as sound-absorbing cotton is used to disperse the airflow to other exhaust holes, reducing the airflow velocity in individual holes and minimizing the "whistling" sound. The channel also features a raised stepped structure facing the opening. This stepped structure is securely installed by its top abutting against the silencing component. The silencing component reduces exhaust noise during oxygen concentrator operation, while the stepped structure secures the silencing component, preventing it from shifting or falling off during gas exhaust and reducing loosening issues. This ensures stable silencing and enhances the structural stability of the exhaust channel.

[0012] Furthermore, the middle part of the mounting frame body also includes a partition, and the air compressor is installed between the partition and the bottom plate; both the partition and the bottom plate are provided with elastic buffer layers on the side facing the air compressor, and the elastic buffer layers fit the top and bottom of the air compressor; the left and right ends of the partition extend to the side plates of the mounting frame body and are fixedly connected to the side plates, reducing displacement or shaking during operation and strengthening the connection between the air compressor and the mounting frame.

[0013] Furthermore, a fixing frame is provided around the main body of the mounting bracket around the air compressor. Specifically, the two ends of the fixing frame are fixedly connected to the main body of the mounting bracket, and the middle part of the fixing frame is fixedly connected to the air compressor. It is fixed in the front and rear direction of the air compressor, forming a comprehensive fixing constraint from the periphery of the air compressor, and strengthening the mutual fixation between the air compressor and the mounting bracket.

[0014] Furthermore, an oxygen chamber plate is provided on the side of the main body of the mounting frame between two side plates, and the left and right ends of the oxygen chamber plate are fixedly connected to the two side plates respectively; the oxygen chamber plate is hollow, and the bottom is set as an air inlet; the integrated oxygen chamber plate design replaces the traditional connection between the hose and the oxygen chamber, reducing the number of interfaces and the possibility of loosening.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The present invention uses an integrated mounting frame structure, which combines the exhaust assembly and the top plate to form a top support, providing lateral support to the mounting frame and fixing the molecular sieve towers on both sides. This integrated and fixed structure enhances the overall strength, making it less prone to vibration between the components within the mounting frame and preventing relative movement between the components.

[0016] 2. The exhaust system integrates a rigid channel through the extension arm and the swivel joint, transforming the traditional hose connection into a rigid channel. This reduces the likelihood of hose detachment due to simple deformation fitting at the joint. Furthermore, the swivel joint centralizes the swivel structure, enabling faster gas switching. The integrated components also make replacement and maintenance more convenient, reducing maintenance costs. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of the integrated housing of an oxygen generator with enhanced stability using an exhaust integration body, according to the present invention. Figure 2 This is a front perspective view of a mounting frame for an oxygen generator with enhanced stability using an exhaust system, according to the present invention. Figure 3 This is a perspective view of the exhaust assembly of an oxygen generator that uses an exhaust assembly to enhance stability, according to the present invention. Figure 4 This is a top cross-sectional view of the exhaust assembly of an oxygen generator with enhanced stability according to the present invention. The attached diagram shows the markings and corresponding component names: 1-Integrated shell, 2-Air compressor, 3-Molecular sieve tower, 4-Mounting bracket, 5-Exhaust assembly, 6-Top support, 7-Top plate, 8-Mounting bracket body, 9-Bottom plate, 10-Air exchange joint, 11-Extension arm, 12-First flange, 13-Second flange, 14-Baffle plate, 15-Fixing frame, 16-Main air pipe, 17-First extension arm, 18-First branch air duct, 19-Second extension arm, 20-Second branch air duct, 21-Main air duct, 22-Pressure groove, 23-Inlet groove, 24-First branch air groove, 25-Second branch air groove, 26-Exhaust groove, 27-Reversing valve, 28-Limiting groove, 29-Step structure, 30-Sound-absorbing cotton, 31-Exhaust port, 32-Oxygen chamber plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0019] Example 1: Reference Figure 1 An oxygen generator employing an exhaust system to enhance stability includes: The integrated housing 1, air compressor 2, molecular sieve tower 3, and oxygen chamber are all integrated and installed in the integrated housing 1. The molecular sieve tower 3 is equipped with an air port for internal gas exchange and an air outlet that connects to the oxygen chamber to ensure effective storage and output of oxygen after it is generated. The integrated housing 1 adopts a combined structure of an integrally molded mounting frame 4 and an exhaust integrated body 5. The mounting frame 4 is composed of a top plate 7, a mounting frame body 8, and a bottom plate 9 connected sequentially from top to bottom. The top plate 7 is fixed to the top of the mounting frame body 8, and the bottom plate 9 is assembled to the bottom of the mounting frame body 8, forming a vertically connected mounting cavity. The air compressor 2 is stably installed in the space between the top plate 7 and the bottom plate 9. The mounting frame body 8 also includes two symmetrically arranged side plates. The upper and lower ends of the side plates are fixedly connected to the bottom of the top plate 7 and the top of the bottom plate 9, respectively. The support of the side plates strengthens the overall structure of the mounting frame 4 and prevents the frame from deforming due to the horizontal inward pressure of the left and right ends when the molecular sieve tower 3 is installed or due to the side of the oxygen generator during use. The exhaust assembly 5 is installed above the top plate 7 of the mounting frame 4, including a central air exchange section 10, a main air pipe 16 for connecting the air compressor 2, and extension arms 11 at both ends. The ends of the extension arms 11 are provided with flanges, which form a firm fixed connection with the molecular sieve tower 3. The exhaust assembly 5 has an integrally formed air passage structure. The air passage in the extension arm 11 is sealed and connected to the air port of the molecular sieve tower 3, and the air passage in the main air pipe 16 is sealed and connected to the gas output end of the air compressor 2. At the same time, the exhaust assembly 5 and the top plate 7 of the mounting frame 4 cooperate with each other to form a top support 6 structure for fixing the mounting frame 4 and the molecular sieve tower 3. The molecular sieve tower 3 is installed between the top plate 7 and the bottom plate 9 of the mounting frame 4 in an embedded manner. The top support 6 and the bottom plate 9 of the mounting frame 4 are limited by the upper and lower limits and the side of the side plate, which can be embedded to adapt to the stable assembly of the molecular sieve tower 3 and prevent displacement or loosening of the interface due to vibration of the equipment operation.

[0020] Reference Figure 2 Preferably, the bottom of the top plate 7 is recessed upward along the installation trajectory of the extension arm 11 to form a limiting groove 28. The middle of the limiting groove 28 has a notch that runs through the upper and lower sides of the top plate 7, corresponding to the installation position of the air exchange joint 10. The air exchange joint 10 is fitted into the notch, and the extension arm 11 is embedded in the limiting groove 28 and tightly abuts against the groove wall. The exhaust assembly 5 restricts multi-directional displacement through the fit of the top plate 7 with the limiting groove 28, ensuring the structural stability after assembly, and at the same time realizing the connection between the exhaust assembly 5 and the top plate 7, avoiding the risk of leakage during gas transmission.

[0021] Preferably, the bottom of both ends of the top plate 7 are recessed to form a pressure groove 22 that matches the shape of the extension arm 11 and the flange. The inner cavity of the pressure groove 22 is provided with an annular sealing protrusion. When the flange is assembled with the top plate 7, the pressure groove 22 fixes the extension arm 11 from top to bottom, so that it is integrated with the top plate 7 and the mounting bracket 4. The annular sealing protrusion can fit tightly against the side wall of the flange, and the bottom fits the arc shape of the top of the molecular sieve tower 3. The sealing method of the connection between the extension arm 11 and the top plate 7 and the molecular sieve tower 3 includes adding a sealing gasket between the flange and the top plate 7, which simplifies the assembly process and can achieve long-term sealing through structural fit. The pressure groove 22 forms a wrap-around limit for the extension arm 11 and the flange, further blocking the components from shaking when the equipment is operating, ensuring the stability of the interface connection and the sealing of gas transmission.

[0022] Specifically, this oxygen generator uses two molecular sieve towers 3, which are used alternately by a gas exchange mechanism (in this invention, a gas exchange section 10). The oxygen production process is as follows: first, air is introduced into the first molecular sieve tower 3. The oxygen separated by the first molecular sieve tower 3 enters the main air pipe 16 through the first inlet of the gas exchange mechanism. Most of the oxygen enters the oxygen chamber, while a small portion enters the second molecular sieve tower 3 for further purification. Then, air is introduced into the second molecular sieve tower 3 through the gas exchange section 10. The second molecular sieve tower 3 separates the oxygen from the air and outputs the separated oxygen and the further purified oxygen together to the oxygen chamber. This achieves alternating oxygen production using two molecular sieve towers 3, which provides higher oxygen production stability than using a single molecular sieve tower 3. Reference Figure 3 Specifically, the extension arm 11 is provided with a first extension arm 17 and a second extension arm 19 corresponding to the two molecular sieve towers 3, and is respectively set at the left and right ends of the air exchange section 10. The first extension arm 17 has a first branch air passage 18 running through its own length direction, and the second extension arm 19 has a corresponding second branch air passage 20 running through its interior. The main air pipe 16 runs through to form an air inlet. The division of labor of the air passages at both ends ensures the smoothness of gas transmission. With the help of flanges, the number of interfaces for gas exchange between the two molecular sieve towers 3 is reduced. During maintenance, the exhaust integrated block can be directly replaced. After disassembling the top plate 7, the exhaust integrated body 5 is completely removed and replaced. After replacement, it is reconnected and installed on the air port above the two molecular sieve towers 3.

[0023] Specifically, the air swivel joint 10 has recessed air slots that are interconnected, including an air intake slot 23, a first branch air slot 24, a second branch air slot 25, and an exhaust slot 26. The first branch air slot 24 is connected to the first branch air passage 18, the second branch air passage 20 is connected to the second branch air slot 25, and the air intake passage is connected to the air intake slot 23.

[0024] Preferably, a reversing valve 27 is configured on the ventilation joint 10. The reversing valve 27 is used to control the connection and disconnection between each air slot. Specifically, it can realize the alternating opening and closing of the first air slot 24 and the second air slot 25, and at the same time regulate the corresponding connection relationship between the two air slots and the air inlet slot 23 and the exhaust slot 26. Alternative solutions include using a manual switching mechanism, but the automatic reversing valve 27 can adapt to the continuous operation requirements of the oxygen generator, realize the precise and rapid switching of the flow path, ensure oxygen production efficiency, and avoid the risk of loosening of the interface that may be caused by manual operation. The integrated assembly of the reversing valve 27 and the ventilation joint 10 also further reduces the external connection points and improves the structural compactness and stability.

[0025] Specifically, the middle part of the mounting frame body 8 also includes a partition 14. The air compressor 2 is installed between the partition 14 and the bottom plate 9, and the left and right ends of the partition 14 extend to the side plates of the mounting frame body 8 and are fixedly connected to the side plates. The fixed connection between the partition 14 and the side plates strengthens the lateral support rigidity of the mounting frame body 8, disperses the vibration transmission of the air compressor 2, and avoids the vibration causing the interfaces of each module to loosen. Preferably, both the partition 14 and the bottom plate 9 are provided with elastic buffer layers on the side facing the air compressor 2. The elastic buffer layers are tightly fitted to the top and bottom of the air compressor 2. The combined design of the partition 14 and the elastic buffer layer realizes bidirectional buffering, separating the air compressor 2 in the vertical vibration direction. It allows small vibrations while ensuring that the air compressor 2 does not detach from the mounting frame body 8, adapting to other air compressors with higher power and reducing the difficulty of maintenance and assembly.

[0026] Specifically, the mounting frame body 8 is provided with a fixing strip 15 surrounding the air compressor 2. The two ends of the fixing strip 15 are firmly connected to the mounting frame body 8, and the middle part of the fixing strip 15 is fixedly connected to the outer wall of the air compressor 2. Alternative fixing methods include using an annular fixing ring to wrap around the air compressor 2. The fixing strip 15 is flexibly adapted to the shape of the air compressor 2. The peripheral fixing further restricts its displacement and shaking during operation. Together with the above-mentioned elastic buffer layer, it forms an all-round protective fixing with upper and lower buffering and peripheral fixing.

[0027] Specifically, an oxygen chamber plate 32 is installed between the two side plates of the mounting frame body 8. The inner cavity of the oxygen chamber plate 32 is a hollow structure, which is used directly as an oxygen chamber. The oxygen chamber is integrated by housing the oxygen chamber in the oxygen chamber plate 32. An air inlet is provided at the bottom of the oxygen chamber plate 32, and a clamp is provided at the top of the bottom plate 9 to match the edge of the air inlet. The bottom plate 9 is fixedly connected to the oxygen chamber plate 32 by the clamp, which also seals the air inlet. The left and right ends of the oxygen chamber plate 32 are fixedly connected to the two side plates respectively. Compared with the oxygen chamber assembly that is set up independently and then docked with the mounting frame 4, the fixed connection between the oxygen chamber plate 32 and the side plates further strengthens the side support of the mounting frame 4. An oxygen outlet is opened at the top and an oxygen inlet is opened on the bottom plate 9, reducing additional connection interfaces. The tightness of the clamp ensures the sealing performance of the oxygen chamber and avoids the problem of oxygen leakage caused by the loosening of the interface hose when the traditional independent oxygen chamber is connected to the main body.

[0028] Reference Figure 4Preferably, due to the high exhaust pressure, the gas will concentrate in some of the small holes, resulting in a sharp "whistling" sound during exhaust. This requires reducing the airflow velocity of individual holes by dispersing the airflow. Specifically, a porous material such as sound-absorbing cotton 30 is used to disperse the airflow to other exhaust holes 31, thereby reducing the possibility of "whistling." A raised step structure 29 is provided inside the groove facing the opening. The step structure 29 is securely installed by its top abutting against the sound-absorbing component. The sound-absorbing component reduces exhaust noise during oxygen generator operation, while the step structure 29 fixes the sound-absorbing component, preventing it from shifting or falling off during gas exhaust, ensuring stable sound absorption. The step structure 29 effectively limits the sound-absorbing cotton 30, preventing the airflow during gas exhaust from causing the sound-absorbing cotton 30 to shift or fall off, ensuring stable sound absorption without compromising the overall structural stability of the exhaust assembly 5.

[0029] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An oxygen generator with exhaust integration body for enhancing stability, comprising an integrated shell (1) for installation, an air compressor (2), a molecular sieve tower (3) for separating nitrogen and oxygen, and an oxygen cabin, the oxygen cabin, the air compressor (2) and the molecular sieve tower (3) being installed in the integrated shell (1); the molecular sieve tower (3) is provided with a gas port for internal gas exchange and an exhaust port connected with the oxygen cabin; the integrated shell (1) comprises an integrated mounting rack (4) and an integrated exhaust integration body (5), the exhaust integration body (5) being installed above the mounting rack (4); Characterized in that, the mounting rack (4) comprises a top plate (7), a mounting rack body (8) and a bottom plate (9) installed in sequence from top to bottom, the top plate (7) being installed at the top end of the mounting rack body (8), and the bottom plate (9) being installed at the bottom of the mounting rack body (8); the air compressor (2) is installed between the top plate (7) and the bottom plate (9); the mounting rack body (8) further comprises two side plates, the upper and lower ends of the two side plates being connected with the bottom of the top plate (7) and the top of the bottom plate (9) respectively; the exhaust integration body (5) is arranged above the top plate (7) of the mounting rack (4) and comprises a gas exchange section (10) arranged in the middle for gas duct integration, a main gas pipe (16) for connection with the air compressor (2), and extension arms (11) arranged at both ends, one end of the extension arm (11) being provided with a flange for mutual fixation with the molecular sieve tower (3); the inside of the exhaust integration body is provided with a gas duct, the gas duct of the extension arm (11) being in communication with the molecular sieve tower (3), and the gas duct of the main gas pipe (16) being in communication with the air compressor (2); the exhaust integration body (5) and the top plate (7) of the mounting rack (4) are combined into a top support (6) structure for fixation of the mounting rack (4) and the molecular sieve tower (3), and the molecular sieve tower (3) is embedded and installed between the top plate (7) and the bottom plate (9) of the mounting rack (4).

2. The oxygen generator of claim 1, wherein the exhaust integrated body is formed of a material having a high thermal conductivity. The bottom of the top plate (7) is recessed upward along the extension arm (11) to form a limiting groove (28), a notch penetrating through the upper and lower sides is arranged in the middle of the limiting groove (28) corresponding to the part of the gas exchange section (10), the gas exchange section (10) is installed at the notch, and the extension arm (11) is installed in the limiting groove (28) and abuts against the inner wall of the limiting groove (28).

3. The oxygen generator of claim 1, wherein the exhaust integrated body is formed of a material having a high thermal conductivity. The bottom of the top plate (7) is recessed to form a pressing groove (22) for the shape of the extension arm (11) and the flange, and the inner cavity of the pressing groove (22) is provided with an annular sealing protrusion which is attached to the side wall of the flange.

4. The oxygen generator of claim 1, wherein the exhaust integrated body is formed of a material having a high thermal conductivity. The extension arm (11) comprises a first extension arm (17) and a second extension arm (19), the first extension arm (17) is provided with a first branch gas duct (18) penetrating through the inside along the arm length direction; the second extension arm (19) is provided with a second branch gas duct (20) penetrating through the inside along the arm length direction; the inside of the main gas pipe (16) is provided with an air inlet duct.

5. The oxygen generator of claim 4, wherein the exhaust integrated body is formed of a material having a high thermal conductivity. The air exchange section (10) is concave and provided with air groove openings in communication with each other, including an air inlet groove (23), a first branch air groove (24), a second branch air groove (25) and an air outlet groove (26), the first branch air groove (24) is in communication with the first branch air channel (18), the second branch air channel (20) is in communication with the second branch air groove (25), and the air inlet channel is in communication with the air inlet groove (23).

6. The oxygen generator of claim 5, wherein the exhaust integrated body (5) is reinforced for stability. The air exchange section (10) is provided with a reversing valve (27) for controlling the communication switching between the air groove openings, the reversing valve (27) controls the opening and closing of the first branch air groove (24) / second branch air groove (25) and the second branch air groove (25) / first branch air groove (24), air inlet groove (23) and air outlet groove (26).

7. The oxygen generator of claim 5, wherein the exhaust integrated body is formed of a material having a high thermal conductivity. The inner wall bottom end of the air outlet groove (26) is provided with a plurality of air outlet holes (31) for discharging nitrogen gas outward, the air outlet groove (26) is provided with sound-absorbing cotton (30) inside, the air outlet groove (26) is provided with a stepped structure (29) protruding towards the groove opening, and the top end of the stepped structure (29) abuts against the sound-absorbing cotton (30).

8. The oxygen generator of claim 1, wherein the exhaust integrated body is reinforced for stability. The middle part of the mounting frame body (8) further includes a partition plate (14), and the air compressor (2) is mounted between the partition plate (14) and the bottom plate (9); the partition plate (14) and the bottom plate (9) are provided with elastic buffer layers on the sides facing the air compressor (2), and the elastic buffer layers are attached to the top and bottom of the air compressor (2); the left and right ends of the partition plate (14) extend to the side plates of the mounting frame body (8) and are fixedly connected with the side plates.

9. The oxygen generator of claim 1, wherein the exhaust integrated body is reinforced for stability. The mounting frame body (8) is provided with a fixed strip frame (15) surrounding the side of the air compressor (2), the two ends of the fixed strip frame (15) are fixedly connected with the mounting frame body (8), and the middle part of the fixed strip frame (15) is fixedly connected with the air compressor (2).

10. The oxygen generator of claim 1, wherein the exhaust integrated body is reinforced for stability. The mounting frame body (8) is provided with an oxygen cabin plate (32) serving as an oxygen cabin between the two side plates, the inner cavity of the oxygen cabin plate (32) is hollow, and the bottom is provided as an air inlet; the left and right ends of the oxygen cabin plate (32) are fixedly connected with the two side plates respectively; the top of the bottom plate (9) is provided with a clamp adapted to the edge of the air inlet, and the bottom plate (9) is fixedly connected with the oxygen cabin plate (32) through the clamp and closes the air inlet.

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