Air duct system of pressure swing adsorption oxygen generator

Abstract

The utility model discloses an air duct system of a pressure swing adsorption oxygen generator, which belongs to the field of pressure swing adsorption oxygen generators and comprises an air duct body, a mounting frame is arranged at a port of the air duct body, a sealing gasket is arranged on the outer side of the mounting frame, dust collection cotton is arranged in the mounting frame, and a fixing component is arranged between the mounting frame and the air duct body. A supporting box is fixedly installed on one side of the port of the air duct body, a beating assembly is arranged in the supporting box, a supporting frame is arranged in the air duct body, two third supporting blocks which are symmetrically distributed are fixedly installed on one side of the bottom of the supporting frame, and third bolts are arranged at the top ends of the two third supporting blocks. The end opening of the air duct body is provided with the dust collection cotton, the dust collection effect can be achieved, the water absorption cotton, the activated carbon plate and the drying plate are arranged in the air duct body, the effect of absorbing and filtering water vapor in air is achieved, and the situation that a mixture of the water vapor and dust adheres to the inner wall of the air duct body is avoided.

Description

Technical Field

[0001] This utility model relates to the field of pressure swing adsorption (PSA) oxygen generators, and more specifically, to a duct system for a PSA oxygen generator. Background Technology

[0002] A pressure swing adsorption (PSA) oxygen generator mainly consists of a blower, a vacuum pump, a switching valve, an adsorption tank, and an oxygen balance tank. The adsorption tank has an inlet and an outlet located at opposite ends, typically situated in the middle of their respective ends. The adsorption tank is filled with an adsorption layer formed by adsorbents such as molecular sieves. After dust particles are removed by a filter, the raw air is pressurized by the blower and enters the adsorption tank. The raw air is then transported through a duct to the filter before entering the adsorption tank.

[0003] However, some existing pressure swing adsorption (PSA) oxygen generators lack internal cleaning filters in their air ducts. The feed air contains dust and moisture, and after prolonged use, these dust and moisture deposits can adhere to the duct's inner walls, making cleaning difficult and potentially affecting the equipment's continued operation. Therefore, to address these issues, we propose a new air duct system for PSA oxygen generators. Utility Model Content

[0004] To solve the above problems, this utility model provides a duct system for a pressure swing adsorption oxygen generator, adopting the following technical solution:

[0005] A duct system for a pressure swing adsorption (PSA) oxygen generator includes a duct body, an installation frame at the port of the duct body, a sealing gasket on the outside of the installation frame, a dust-absorbing cotton inside the installation frame, a fixing assembly between the installation frame and the duct body, a support box fixedly installed on one side of the port of the duct body, a beater assembly inside the support box, a support frame inside the duct body, two symmetrically distributed third support blocks fixedly installed on one side of the bottom of the support frame, a third bolt at the top of each of the two third support blocks, the bottom end of the third bolt penetrating through the same group of third support blocks, and a third threaded groove matching the third bolt on the inner wall of the duct body.

[0006] The air duct body has an absorbent cotton inside near the mounting frame. The absorbent cotton has a squeezing component on its side wall. The bottom of the air duct body has a water collection hopper, and the top of the water collection hopper slides through the air duct body and extends into the support frame. The bottom of the air duct body and the bottom of the support frame are both provided with through grooves that match the water collection hopper. The bottom of the water collection hopper is provided with a drain pipe, and the side wall of the drain pipe is provided with a one-way valve. The support frame is provided with an activated carbon plate and a drying plate.

[0007] By adopting the above technical solution, the workers install the mounting frame and dust-absorbing cotton at the port of the air duct body using the fixing components. The mounting frame has a sealing gasket on the outside, which helps to improve the sealing between the mounting frame and the air duct body. Then, the workers place the support frame inside the air duct body and fix the support frame inside the air duct body by using the third bolt and the third support block. The water collection bucket moves through the through groove opened at the bottom of the air duct body and the support frame to the bottom of the water-absorbing cotton. When the air duct body is in use, air is transmitted through the air duct body. The dust-absorbing cotton at the port of the air duct body can absorb dust in the air. The water-absorbing cotton, activated carbon plate and drying plate inside the support frame can absorb moisture in the air, achieving the effect of drying the air. This helps to reduce the mixture of moisture and dust adhering to the inner wall of the air duct body and helps to maintain the performance of the air duct body.

[0008] After the air duct body has been used for a period of time, the water-absorbing cotton can be squeezed by the squeezing component to drain the water. The squeezed water enters the water collection hopper and is then discharged through the drain pipe. The drain pipe has a one-way valve on its side wall to help prevent water backflow. When the air duct body is not in use, the dust-absorbing cotton can be cleaned by patting it with the tapping component.

[0009] Furthermore, the fixing component includes a first support block disposed at the top and bottom of the mounting frame, a groove matching the first support block is provided at the port of the air duct body, a first bolt is provided on the side of the first support block away from the air duct body, the first bolt passes through the first support block in the same group, and a first threaded groove matching the first bolt in the same group is provided on the inner wall of the groove on the side away from the first support block in the same group.

[0010] By adopting the above technical solution, the staff places the installation frame at the port of the air duct body, so that the first support block installed on the side wall of the installation frame and the groove opened at the port of the air duct body are engaged. Then, the first bolt passes through the first support block in the same group and is screwed into the first screw groove opened on the inner wall of the groove in the same group, which can play the role of fixing the dust collection cotton.

[0011] Furthermore, the tapping assembly includes a mounting box slidably installed inside the support box. A telescopic rod is fixedly installed on the inner wall of the top of the support box, and the end of the telescopic rod is fixedly connected to the top of the mounting box. A first reduction motor is fixedly installed inside the mounting box. A rotating rod is provided at the port of the air duct body. One end of the rotating rod passes through the mounting box and is fixedly connected to the end of the output shaft of the first reduction motor. The side wall of the rotating rod is provided with multiple rubber rods arranged in a linear array. The support box has a moving groove matching the rotating rod on the side near the air duct body.

[0012] By adopting the above technical solution, the rotating rod is driven to rotate by the first geared motor. The rotating rod drives the rubber rod to rotate synchronously, so that multiple rubber rods come into contact with the opposite side of the dust-collecting cotton, which can play the role of beating the dust-collecting cotton and thus cleaning it. When the rubber rods beat the dust-collecting cotton, the mounting box is driven to slide in the support box by the telescopic rod. The mounting box, along with the first geared motor, rotating rod and rubber rods, rises and falls synchronously, which facilitates cleaning different parts of the dust-collecting cotton and helps to improve the cleaning efficiency of the equipment.

[0013] Furthermore, the extrusion assembly includes a first extrusion block and a second extrusion block disposed on both sides of the absorbent cotton. A waterproof box is fixedly installed on the inner wall of the bottom end of the support frame. The waterproof box is located on the side of the absorbent cotton closer to the first extrusion block. A reciprocating screw is rotatably installed on the inner wall of the bottom end of the waterproof box. The top end of the reciprocating screw passes through the waterproof box and is rotatably connected to the inner wall of the top end of the support frame. The top end of the reciprocating screw passes through the first extrusion block. A first stabilizing rod is provided on the side of the absorbent cotton away from the mounting frame. The first stabilizing rod is fixedly connected to the inner wall of the support frame. The top end of the first stabilizing rod slides through the first extrusion block. Two symmetrically distributed second stabilizing rods are provided on the side of the absorbent cotton closer to the mounting frame. Both second stabilizing rods are fixedly connected to the inner wall of the support frame. The top ends of both second stabilizing rods slide through the second extrusion block. A driven gear is fixedly sleeved on the lower side wall of the reciprocating screw. A third reduction motor is fixedly installed inside the waterproof box. A drive gear is fixedly sleeved on the side wall of the output shaft of the third reduction motor. The drive gear and the driven gear mesh. Magnets are provided inside both the first extrusion block and the second extrusion block.

[0014] By adopting the above technical solution, the third reduction motor drives the drive gear to rotate, the drive gear drives the driven gear to rotate, and the driven gear drives the reciprocating screw to rotate, thereby driving the first extrusion block to move. Both the first and second extrusion blocks are equipped with magnets. Under the attraction of the two magnets, when the first extrusion block moves, the second extrusion block can move synchronously. Through the cooperation of the first and second extrusion blocks, the absorbent cotton can be squeezed, which can discharge the water absorbed by the absorbent cotton and help maintain the absorbent cotton's adsorption effect.

[0015] Furthermore, two symmetrically distributed second support blocks are fixedly installed on both sides of the water collection hopper. The bottom of each second support block is provided with a second bolt, which penetrates through the second support block in the same group. The bottom end of the air duct body is provided with a second threaded groove that matches the second bolt.

[0016] By adopting the above technical solution, the water collection hopper is fixed to the air duct body through the cooperation of the second support block and the second bolt.

[0017] Furthermore, two symmetrically distributed baffles are fixedly installed inside the upper port of the water collection hopper, and both baffles are inclined inside the water collection hopper.

[0018] By adopting the above technical solution, the water collection hopper is equipped with two baffles, both of which are inclined, which facilitates the entry of water into the water collection hopper. The two baffles can also prevent air from flowing through the lower end of the absorbent cotton.

[0019] Furthermore, an installation plate is fixedly installed inside the support frame. The installation plate is located between the activated carbon plate and the drying plate. A second reduction motor is provided on the side of the installation plate near the activated carbon plate. The output shaft of the second reduction motor is fixedly fitted with fan blades.

[0020] By adopting the above technical solution, when the equipment beats the dust-collecting cotton, the second geared motor drives the fan blades to rotate and generate wind. The wind blows away the dust that has been beaten, achieving a further dust removal effect and helping to maintain the effectiveness of the dust-collecting cotton.

[0021] In summary, this utility model has the following beneficial technical effects:

[0022] (1) In this utility model, the dust-absorbing cotton at the port of the air duct body can play a role in dust absorption, and the water-absorbing cotton, activated carbon plate and drying plate inside the air duct body can absorb and filter water vapor in the air, which helps to prevent the mixture of water vapor and dust from adhering to the inner wall of the air duct body, and facilitates the continued use of the air duct body.

[0023] (2) In this application, by setting the extrusion assembly, the reciprocating screw is driven to rotate by the third reduction motor, thereby causing the first extrusion block to move on the side wall of the absorbent cotton. Magnets are provided in both the first and second extrusion blocks. The attraction force of the two magnets facilitates the synchronous movement of the first and second extrusion blocks, which can play the role of extruding the absorbent cotton and achieve the effect of drainage. This helps to maintain the absorption effect of the absorbent cotton. The squeezed water is discharged through the water collection bucket and the drain pipe.

[0024] (3) In this utility model, when the air duct body is not in use, the dust-collecting cotton can be beaten by the beating component, which can play the role of dust removal. Then, the fan blade is driven to rotate by the second reduction motor to generate wind force, which blows away the dust that has been beaten, thus achieving the effect of auxiliary dust removal. This is conducive to maintaining the adsorption effect of the dust-collecting cotton. The mounting frame is connected to the air duct body by the fixing component, which makes it convenient for staff to disassemble and replace the dust-collecting cotton later. Attached Figure Description

[0025] Figure 1 A schematic diagram of the structure of this utility model;

[0026] Figure 2This is a cross-sectional view of the present invention;

[0027] Figure 3 This utility model Figure 2 A magnified view of middle A;

[0028] Figure 4 This is an exploded view of the extrusion assembly in this utility model;

[0029] Figure 5 This utility model Figure 4 Enlarged view of B in the middle;

[0030] Figure 6 This is an unfolded view of the fixing component in this utility model.

[0031] Explanation of the labels in the diagram:

[0032] 1. Duct body; 2. Mounting frame; 3. Dust-absorbing cotton; 4. Rotating rod; 5. Rubber rod; 6. Support box; 7. Mounting box; 8. First support block; 9. First bolt; 10. Water collection hopper; 11. Drain pipe; 12. Second support block; 13. Second bolt; 14. Support frame; 15. First geared motor; 16. Third support block; 17. Third bolt; 18. Activated carbon plate; 19. Fan blade; 20. Mounting plate; 21. Second geared motor; 22. Drying plate; 23. First extrusion block; 24. Reciprocating screw; 25. Water-absorbing cotton; 26. Second extrusion block; 27. Waterproof box; 28. Third geared motor; 29. ​​Drive gear; 30. Driven gear; 31. First stabilizing rod; 32. Second stabilizing rod; 33. Groove; 34. Telescopic rod. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The following is in conjunction with the appendix Figure 1-6 The utility model is described in further detail.

[0037] Please see Figure 1-6 A duct system for a pressure swing adsorption (PSA) oxygen generator includes a duct body 1, a mounting frame 2 at the port of the duct body 1, a sealing gasket on the outside of the mounting frame 2, a dust-absorbing cotton 3 inside the mounting frame 2, and a fixing assembly between the mounting frame 2 and the duct body 1. The fixing assembly includes first support blocks 8 located at the top and bottom of the mounting frame 2. A groove 33 matching the first support block 8 is formed at the port of the duct body 1. First bolts 9 are provided on the side of the first support block 8 away from the duct body 1, and the first bolts 9 penetrate the first support blocks 8 in the same group. The inner wall of the side away from the first support block 8 of the same group is provided with a first screw groove that matches the first bolt 9 of the same group. The operator places the mounting frame 2 at the port of the air duct body 1, so that the first support block 8 installed on the side wall of the mounting frame 2 and the groove 33 opened at the port of the air duct body 1 are engaged. Then, the first bolt 9 is passed through the first support block 8 of the same group and is screwed into the first screw groove opened on the inner wall of the groove 33 of the same group. This can fix the dust collection cotton 3 and facilitate the removal of dust in the air entering the air duct body 1.

[0038] The duct body 1 has a support frame 14 inside. Two symmetrically distributed third support blocks 16 are fixedly installed on one side of the bottom of the support frame 14. Each of the two third support blocks 16 has a third bolt 17 at its top. The bottom end of the third bolt 17 passes through the third support block 16 in the same group. The inner wall of the duct body 1 has a third threaded groove that matches the third bolt 17. The duct body 1 has absorbent cotton 25 inside the end near the mounting frame 2. The absorbent cotton 25 has a compression assembly on its side wall. The compression assembly includes a first extruder set on both sides of the absorbent cotton 25. A pressure block 23 and a second extrusion block 26 are provided. A waterproof box 27 is fixedly installed on the inner wall of the bottom end of the support frame 14. The waterproof box 27 is located on the side of the absorbent cotton 25 near the first extrusion block 23. A reciprocating screw 24 is rotatably installed on the inner wall of the bottom end of the waterproof box 27. The top end of the reciprocating screw 24 passes through the waterproof box 27 and is rotatably connected to the inner wall of the top end of the support frame 14. The top end of the reciprocating screw 24 passes through the first extrusion block 23. A first stabilizing rod 31 is provided on the side of the absorbent cotton 25 away from the mounting frame 2. The first stabilizing rod 31 is fixed to the inner wall of the support frame 14. The first stabilizing rod 31 slides through the first extrusion block 23. Two symmetrically distributed second stabilizing rods 32 are provided on the side of the absorbent cotton 25 near the mounting frame 2. Both second stabilizing rods 32 are fixedly connected to the inner wall of the support frame 14. The tops of both second stabilizing rods 32 slide through the second extrusion block 26. A driven gear 30 is fixedly sleeved on the lower side wall of the reciprocating screw 24. A third reduction motor 28 is fixedly installed inside the waterproof box 27. A drive gear is fixedly sleeved on the side wall of the output shaft of the third reduction motor 28. Wheel 29, drive gear 29 and driven gear 30 mesh, magnets are provided in the first extrusion block 23 and the second extrusion block 26, water collection hopper 10 is provided at the bottom of the air duct body 1, and the top of the water collection hopper 10 slides through the air duct body 1 and extends into the support frame 14. The bottom end of the air duct body 1 and the bottom end of the support frame 14 are provided with through grooves that match the water collection hopper 10. The bottom end of the water collection hopper 10 is provided with a drain pipe 11, and a one-way valve is provided on the side wall of the drain pipe 11. Activated carbon plate 18 and drying plate 22 are provided in the support frame 14.

[0039] The support frame 14, with its absorbent cotton 25, activated carbon plate 18, and drying plate 22, absorbs moisture from the air, effectively drying it. This reduces the amount of moisture and dust adhering to the inner wall of the duct body 1, maintaining its performance. After a period of use, the duct body 1 is driven by a third reduction motor 28, which in turn drives a driven gear 29. The driven gear 29 drives a driven gear 30, which in turn drives a reciprocating screw 24, thus moving the first extrusion block 23. Both the first squeezing block 23 and the second squeezing block 26 are equipped with magnets. Under the attraction of the two magnets, when the first squeezing block 23 moves, the second squeezing block 26 can move synchronously. Through the cooperation of the first squeezing block 23 and the second squeezing block 26, the absorbent cotton 25 can be squeezed, which can discharge the water absorbed by the absorbent cotton 25. This helps to maintain the absorption effect of the absorbent cotton 25. The squeezed water enters the water collection hopper 10 and is then discharged through the drain pipe 11. The drain pipe 11 is equipped with a one-way valve on its side wall to help prevent water backflow.

[0040] Two symmetrically distributed second support blocks 12 are fixedly installed on both sides of the water collection hopper 10. The bottom of each second support block 12 is provided with a second bolt 13, which passes through the second support block 12 in the same group. The bottom end of the air duct body 1 is provided with a second threaded groove that matches the second bolt 13. Two symmetrically distributed baffles are fixedly installed inside the upper port of the water collection hopper 10. The two baffles are located inside the water collection hopper 10 and are inclined. The water collection hopper 10 is fixed to the air duct body 1 through the cooperation of the second support blocks 12 and the second bolts 13, which facilitates subsequent disassembly. The two baffles inside the water collection hopper 10, which are inclined, facilitate the entry of water into the water collection hopper 10. The two baffles can also prevent air from flowing through the lower end of the absorbent cotton 25.

[0041] A support box 6 is fixedly installed on one side of the duct body 1. The support box 6 contains a beater assembly, which includes a mounting box 7 that is slidably installed in the support box 6. A telescopic rod 34 is fixedly installed on the inner wall of the top of the support box 6. The end of the telescopic rod 34 is fixedly connected to the top of the mounting box 7. A first reduction motor 15 is fixedly installed in the mounting box 7. A rotating rod 4 is provided at the duct body 1. One end of the rotating rod 4 passes through the mounting box 7 and is fixedly connected to the end of the output shaft of the first reduction motor 15. The side wall of the rotating rod 4 has multiple rubber rods 5 arranged in a linear array. The support box 6 has a moving groove that matches the rotating rod 4 on the side near the duct body 1. An installation plate 20 is fixedly installed in the support frame 14. The installation plate 20 is located between the activated carbon plate 18 and the drying plate 22. A second reduction motor 21 is provided on the side of the installation plate 20 near the activated carbon plate 18. A fan blade 19 is fixedly sleeved on the output shaft of the second reduction motor 21.

[0042] When the air duct body 1 is not in use, the first reduction motor 15 drives the rotating rod 4 to rotate, and the rotating rod 4 drives the rubber rods 5 to rotate synchronously, so that multiple rubber rods 5 contact the opposite side of the dust-collecting cotton 3, which can play the role of beating the dust-collecting cotton 3, thereby cleaning the dust-collecting cotton 3. When the rubber rods 5 beat the dust-collecting cotton 3, the telescopic rod 34 drives the mounting box 7 to slide in the support box 6. The mounting box 7, along with the first reduction motor 15, the rotating rod 4 and the rubber rods 5, rises and falls synchronously, which facilitates cleaning different positions of the dust-collecting cotton 3 and helps to improve the cleaning efficiency of the equipment. At the same time, the second reduction motor 21 drives the fan blades 19 to rotate to generate wind force, which blows away the dust that has been beaten, achieving a further dust removal effect and helping to maintain the use effect of the dust-collecting cotton 3.

[0043] The implementation principle of this utility model embodiment is as follows: The operator installs the mounting frame 2 and the dust-absorbing cotton 3 at the port of the air duct body 1 using the fixing components. The mounting frame 2 is provided with a sealing gasket on the outside, which helps to improve the sealing between the mounting frame 2 and the air duct body 1. Then, the operator places the support frame 14 inside the air duct body 1 and fixes the support frame 14 inside the air duct body 1 by the cooperation of the third bolt 17 and the third support block 16. The water collection bucket 10 moves through the through groove opened at the bottom of the air duct body 1 and the support frame 14 to the bottom of the water-absorbing cotton 25. When the air duct body 1 is in use, air is transmitted through the air duct body 1. The dust-absorbing cotton 3 at the port of the air duct body 1 can absorb dust in the air. The water-absorbing cotton 25, the activated carbon plate 18 and the drying plate 22 inside the support frame 14 can absorb moisture in the air, achieving the effect of drying the air. This helps to reduce the mixture of moisture and dust adhering to the inner wall of the air duct body 1 and helps to maintain the use effect of the air duct body 1.

[0044] After the air duct body 1 has been used for a period of time, the water-absorbing cotton 25 can be squeezed by the squeezing component to drain the water. The squeezed water enters the water collection hopper 10 and is then discharged through the drain pipe 11. The drain pipe 11 is equipped with a one-way valve on its side wall to help prevent water backflow. When the air duct body 1 is not in use, the dust-absorbing cotton 3 can be cleaned by patting it with the tapping component.

[0045] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A duct system for a pressure swing adsorption (PSA) oxygen generator, comprising a duct body (1), characterized in that: The air duct body (1) is provided with an installation frame (2) at the port. The installation frame (2) is provided with a sealing gasket on the outside. The installation frame (2) is provided with a dust-absorbing cotton (3) inside. The installation frame (2) and the air duct body (1) are provided with a fixing component. A support box (6) is fixedly installed on one side of the air duct body (1). A beater component is provided inside the support box (6). A support frame (14) is provided inside the air duct body (1). Two symmetrically distributed third support blocks (16) are fixedly installed on one side of the bottom of the support frame (14). A third bolt (17) is provided at the top of each of the two third support blocks (16). The bottom end of the third bolt (17) passes through the third support block (16) in the same group. A third threaded groove matching the third bolt (17) is opened on the inner wall of the air duct body (1). The air duct body (1) has an absorbent cotton (25) inside one end near the mounting frame (2). The absorbent cotton (25) has a squeezing component on its side wall. The bottom of the air duct body (1) has a water collection hopper (10). The top of the water collection hopper (10) slides through the air duct body (1) and extends into the support frame (14). The bottom of the air duct body (1) and the bottom of the support frame (14) are both provided with through grooves that match the water collection hopper (10). The bottom of the water collection hopper (10) is provided with a drain pipe (11). The side wall of the drain pipe (11) is provided with a one-way valve. The support frame (14) is provided with an activated carbon plate (18) and a drying plate (22).

2. The air duct system of a pressure swing adsorption oxygen generator according to claim 1, characterized in that: The fixing component includes a first support block (8) disposed at the top and bottom of the mounting frame (2). The port of the air duct body (1) is provided with a groove (33) that matches the first support block (8). The side of the first support block (8) away from the air duct body (1) is provided with a first bolt (9). The first bolt (9) passes through the first support block (8) in the same group. The inner wall of the groove (33) away from the first support block (8) in the same group is provided with a first threaded groove that matches the first bolt (9) in the same group.

3. The air duct system of a pressure swing adsorption oxygen generator according to claim 1, characterized in that: The tapping assembly includes a mounting box (7) that is slidably installed in the support box (6). A telescopic rod (34) is fixedly installed on the inner wall of the top of the support box (6). The end of the telescopic rod (34) is fixedly connected to the top of the mounting box (7). A first reduction motor (15) is fixedly installed in the mounting box (7). A rotating rod (4) is provided at the port of the air duct body (1). One end of the rotating rod (4) passes through the mounting box (7) and is fixedly connected to the end of the output shaft of the first reduction motor (15). A plurality of rubber rods (5) are provided on the side wall of the rotating rod (4) in a linear array. A moving groove matching the rotating rod (4) is opened on the side of the support box (6) near the air duct body (1).

4. The air duct system of a pressure swing adsorption oxygen generator according to claim 1, characterized in that: The extrusion assembly includes a first extrusion block (23) and a second extrusion block (26) disposed on both sides of the absorbent cotton (25). A waterproof box (27) is fixedly installed on the inner wall of the bottom end of the support frame (14). The waterproof box (27) is located on the side of the absorbent cotton (25) closer to the first extrusion block (23). A reciprocating screw (24) is rotatably installed on the inner wall of the bottom end of the waterproof box (27). The top end of the reciprocating screw (24) passes through the waterproof box (27) and is rotatably connected to the inner wall of the top end of the support frame (14). The top end of the reciprocating screw (24) passes through the first extrusion block (23). A first stabilizing rod (31) is provided on the side of the absorbent cotton (25) away from the mounting frame (2). The first stabilizing rod (31) is fixedly connected to the inner wall of the support frame (14). (31) The top of the first extrusion block (23) is slidably inserted through the top of the first extrusion block (23). The absorbent cotton (25) is provided with two symmetrically distributed second stabilizing rods (32) on the side near the mounting frame (2). Both second stabilizing rods (32) are fixedly connected to the inner wall of the support frame (14). The top of both second stabilizing rods (32) is slidably inserted through the second extrusion block (26). The lower section of the reciprocating screw (24) is fixedly fitted with a driven gear (30). The waterproof box (27) is fixedly installed with a third reduction motor (28). The output shaft of the third reduction motor (28) is fixedly fitted with a drive gear (29). The drive gear (29) and the driven gear (30) mesh. Both the first extrusion block (23) and the second extrusion block (26) are provided with magnets.

5. The air duct system of a pressure swing adsorption oxygen generator according to claim 1, characterized in that: Two symmetrically distributed second support blocks (12) are fixedly installed on both sides of the water collection hopper (10). The bottom of each second support block (12) is provided with a second bolt (13). The second bolt (13) passes through the second support block (12) in the same group. The bottom end of the air duct body (1) is provided with a second threaded groove that matches the second bolt (13).

6. The air duct system of a pressure swing adsorption oxygen generator according to claim 1, characterized in that: Two symmetrically distributed baffles are fixedly installed inside the upper port of the water collection hopper (10), and both baffles are inclined inside the water collection hopper (10).

7. The air duct system of a pressure swing adsorption oxygen generator according to claim 1, characterized in that: An installation plate (20) is fixedly installed inside the support frame (14). The installation plate (20) is located between the activated carbon plate (18) and the drying plate (22). A second reduction motor (21) is provided on the side of the installation plate (20) near the activated carbon plate (18). The output shaft of the second reduction motor (21) is fixedly fitted with a fan blade (19).

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