Pressure swing adsorption oxygen generator

Abstract

The application discloses a pressure swing adsorption oxygen generator and relates to the technical field of oxygen generators. The pressure swing adsorption oxygen generator comprises an oxygen generator body. An air outlet assembly is arranged on the side wall of the oxygen generator body. A second buffer assembly is arranged in the air outlet assembly. A protection assembly is arranged on the end surface of the air outlet assembly on the outer side of the second buffer assembly. A control assembly is arranged on the inner side of the second buffer assembly. A first buffer assembly is arranged on the other end of the second buffer assembly in the air outlet assembly. The first buffer assembly and the second buffer assembly are arranged to weaken the kinetic energy of the gas multiple times, so that the high-quality noise reduction of the gas is realized, and the noise during air outlet is controlled at a low decibel.

Description

A pressure swing adsorption oxygen generator Technical Field

[0001] This invention relates to the field of oxygen generator technology, specifically a pressure swing adsorption oxygen generator. Background Technology

[0002] A pressure swing adsorption (PSA) oxygen generator mainly consists of a blower, a vacuum pump, a switching valve, an adsorber, and an oxygen balance tank. The raw air, after dust particles are removed by the inlet filter, is pressurized to 0.3-0.5 bar by a Roots blower and enters one of the adsorbers. The adsorber is filled with adsorbent, in which moisture, carbon dioxide, and small amounts of other gaseous components are adsorbed by the activated alumina at the bottom of the adsorber inlet. Subsequently, nitrogen is adsorbed by the zeolite molecular sieve above the activated alumina, while oxygen (including argon) is a non-adsorbed component and is discharged as product gas from the top outlet of the adsorber to the oxygen balance tank.

[0003] The advantages of a pressure swing adsorption (PSA) oxygen generator are: fast oxygen production, oxygen can be produced in 2 minutes after the power is turned on; it uses AC power as energy and air as raw material, resulting in low oxygen production cost, safety and reliability, ease of use, portability, and continuous use; the disadvantage of a PSA oxygen generator is: high noise, which is a common problem with this type of oxygen generator.

[0004] Currently, pressure swing adsorption (PSA) oxygen concentrators are widely used in homes due to their low price, compact size, and ease of use. We know that in daily life, most people who need oxygen inhalation are the elderly and patients with respiratory diseases. Therefore, they need a relatively quiet environment when using oxygen concentrators. Excessive noise can affect the rest of the elderly and patients, and it is also a form of noise pollution for other family members. Therefore, we propose a pressure swing adsorption (PSA) oxygen concentrator. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide a pressure swing adsorption oxygen generator to solve the technical problem of excessive noise in oxygen generators.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pressure swing adsorption oxygen generator, comprising an oxygen generator body, the oxygen generator body including a support plate with casters, and a main body mounted on the top of the support plate, a force-bearing handle fixed to the top of the main body, and a control unit provided at the end of the main body, with an oxygen supply port provided below the control unit at the end of the main body, an air outlet assembly provided on the side wall of the oxygen generator body, and a second buffer assembly installed inside the air outlet assembly, a protective assembly provided on the outer side of the second buffer assembly at the end face of the air outlet assembly, and a control assembly provided on the inner side of the second buffer assembly, and a first buffer assembly provided inside the air outlet assembly at the other end of the second buffer assembly;

[0007] The control assembly includes a cutting disc that is sleeved on the outer wall of a connecting shaft;

[0008] The inner wall of the air outlet pipe has a cutting cavity, and a first magnetic pole is installed on the inner wall of the cutting cavity. A second magnetic pole is installed on the inner wall of the other side of the cutting cavity, and the second magnetic pole is opposite to the first magnetic pole. A current sensor is also installed on the inner wall of the air outlet pipe, which is electrically connected to the first and second magnetic poles, and the current sensor is electrically connected to the drive source of the rotating ring.

[0009] The present invention is further configured such that the gas outlet assembly includes a gas outlet pipe disposed on the outer wall of the main body, and a gas cavity is opened inside the gas outlet pipe. One side of the gas outlet pipe is connected to an air inlet end that communicates with the gas cavity, and the air inlet end communicates with a nitrogen gas outlet inside the main body.

[0010] By adopting the above technical solution, the gas outlet component assists in the gas outlet process.

[0011] The present invention is further configured such that the second buffer assembly includes a first fan blade installed inside the air outlet pipe, and a connecting shaft is provided on the inner side of the first fan blade, a second fan blade is installed on one side of the connecting shaft, and the ends of the second fan blade and the first fan blade are both connected to a transmission shaft extending into the connecting shaft.

[0012] By adopting the above technical solution, the second buffer component further buffers and reduces the energy of the gas, thereby keeping the noise emitted by the final exhaust gas at a low decibel level and improving the user's comfort.

[0013] The present invention is further configured such that the protective component includes a protective door installed at the end of the air outlet pipe, and the end of the protective door is provided with a driven toothed wall. A drive gear is installed on the inner wall of the air outlet pipe, and the end of the drive gear is connected to a drive source. The drive gear meshes with the driven toothed wall, and the protective door is slidably connected to the inner wall of the air outlet pipe. The number of protective doors is two sets, and the two sets of protective doors are symmetrically arranged. One set of protective doors has a placement cavity inside, and a roller is installed inside the placement cavity. A protective net is sleeved on the outer wall of the roller, and the end of the protective net is connected to the end of the second set of protective doors.

[0014] By adopting the above technical solution, the protective component achieves a two-way dustproof effect, preventing external dust from entering the exhaust pipe and preventing dust in the gas from polluting the outside atmosphere.

[0015] The invention is further configured such that the control component includes a cutting disc sleeved on the outer wall of the connecting shaft, and the cutting disc is slidably connected to the outer wall of the connecting shaft. A connecting rod extending to the end of the second fan blade is connected to the end of the cutting disc. A cutting cavity is formed in the inner wall of the air outlet pipe, and a first magnetic pole is installed on the inner wall of the cutting cavity. A second magnetic pole is installed on the inner wall of the other side of the cutting cavity, and the second magnetic pole is opposite to the first magnetic pole. A current sensor electrically connected to the first and second magnetic poles is also installed in the inner wall of the air outlet pipe, and the current sensor is electrically connected to the drive source of the drive gear and the drive source of the rotating ring.

[0016] By adopting the above technical solution, the rotation of the fan blades will drive the cutting disc to rotate. Therefore, the rotation speed of the fan blades directly affects the speed at which the cutting disc cuts the magnetic field lines. The current sensor thus realizes the electronic control effect of the driving source according to the magnitude of the current.

[0017] The present invention is further configured such that the first buffer assembly includes a buffer box installed inside the air outlet pipe, and a first air inlet and a second air inlet are provided at one end of the buffer box and communicate with the air outlet assembly at the air inlet end. A third air inlet is provided between the first air inlet and the second air inlet and communicates with the air outlet assembly at the air inlet end. A first air pipe is connected to one side of the first air inlet and a second air pipe is connected to one side of the second air inlet. Multiple sets of buffer plates connected to the inner wall of the air pipe by a strong torsion spring are installed inside the first air pipe and the second air pipe. A convection pipe is provided at the output port of the first air pipe and the second air pipe. A buffer cavity is provided on one side of the convection pipe and a diffuser shroud communicating with the air cavity is connected to the other side of the convection pipe.

[0018] By adopting the above technical solution, the kinetic energy of the exhaust gas is reduced, thus weakening most of the gas's kinetic energy and achieving a good noise reduction effect.

[0019] The present invention is further configured such that a fan blade control assembly is provided inside the connecting shaft, the fan blade control assembly includes a cavity formed inside the connecting shaft, and a pressing part is provided on the inner wall of the connecting shaft outside the transmission shaft. The end of the pressing part is fixed inside the cavity with a limit slider, and the limit slider is slidably connected to the inner wall of the cavity. A rotating ring is also slidably connected inside the cavity, and the rotating ring is connected to an external driving source. An adjusting block is provided on the inner end face of the rotating ring. A reset spring connected to the inner wall of the cavity is also installed at the end of the pressing part.

[0020] By adopting the above technical solution, the frictional force of the fan blade rotation is controlled, so that the frictional force of the fan blade can be increased at high speed, thereby achieving an efficient reduction of the kinetic energy of the gas.

[0021] In summary, the present invention has the following main beneficial effects:

[0022] This invention employs a first and a second buffer assembly. First, gas enters the gas chamber through the inlet. Then, the gas is diverted by the first, second, and third inlets, entering the first, second, and buffer chambers respectively. Subsequently, the gas flows through the first and second pipes, pushing the buffer plate to rotate. This rotation reduces the gas's kinetic energy. Further, as the gas flows out of the first and second pipes, the two airflows convection, resulting in another reduction of kinetic energy. The convection-enhanced gas then flows into the gas chamber through the convection pipe and the diffuser. The diffuser enlarges the gas's output surface, further reducing its kinetic energy. In addition, the gas in the buffer chamber flows along the inner wall of the trachea to the inside of the bend. When the gas inside the bend reaches the top of the bend, it turns back, thus forming a reverse airflow. The reverse airflow meets the gas flowing behind it, and through convection, they cancel out some of the kinetic energy, further reducing the kinetic energy of the gas. The gas then continues to flow and blows the second fan blade to rotate. The rotation of the second fan blade also weakens the kinetic energy of the gas. When the gas flows to the first fan blade, the first fan blade weakens the kinetic energy of the gas for the last time. Through the above structure, the kinetic energy of the gas is weakened in multiple ways, thereby achieving high-quality noise reduction of the gas and keeping the noise during gas exhaust at a low decibel level.

[0023] This invention, through the inclusion of a protective component, a control component, and a fan blade control component, allows the second fan blade to rotate. When the second fan blade rotates, it drives the cutting disc to rotate via a connecting rod. The cutting disc then cuts magnetic lines of force within the cutting cavity, generating an induced current. At this point, a current sensor, controlled by a microcontroller, activates the drive gear. The drive gear then rotates, and through the action of the driven gear wall, it moves the protective door outwards, opening the end of the exhaust pipe to facilitate gas release. Furthermore, when the protective door opens, the protective mesh unfolds, filtering the exhaust gas and preventing impurities from entering and causing pollution. When the oxygen concentrator's power is at its maximum, the amount of exhaust gas increases accordingly. Under this action, the second blade rotates faster, which in turn causes the cutting disc to rotate faster, increasing the induced current. When the current sensor detects that the induced current has increased to a value exceeding the set value, it causes the drive source of the rotating ring to rotate. After the rotating ring rotates, it drives the adjusting block to rotate, which in turn presses against the limit slider. This causes the limit slider to slide against the inner wall of the cavity and pushes the pressing part towards the drive shaft. The greater the induced current, the greater the angle of rotation of the rotating ring, meaning the greater the pressing force of the pressing part on the drive shaft. As the pressing part presses against the drive shaft, the friction that the drive shaft needs to overcome to rotate increases. Therefore, this method can effectively reduce noise in the high-power oxygen concentrator, with excellent noise reduction effect and strong adjustment capability. Attached Figure Description

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a schematic diagram of the end structure of the nitrogen outlet pipe of the present invention;

[0026] Figure 3 is a schematic diagram of the internal structure of the nitrogen outlet pipe of the present invention.

[0027] Figure 4 is a partial enlarged view of point A in Figure 3 of this invention.

[0028] Figure 5 is a partial enlarged view of point B in Figure 3 of this invention.

[0029] Figure 6 is a schematic diagram of the buffer airway structure of the present invention;

[0030] Figure 7 is a schematic diagram of the internal structure of the connecting shaft of the present invention.

[0031] In the diagram: 1. Oxygen generator body; 101. Support plate; 102. Main body; 103. Force-bearing handrail; 104. Control unit; 105. Oxygen supply port; 2. Air outlet assembly; 201. Air outlet pipe; 202. Air chamber; 203. Air inlet end; 3. Second buffer assembly; 301. First fan blade; 302. Drive shaft; 303. Connecting shaft; 304. Second fan blade; 4. Protective assembly; 401. Protective door; 402. Driven gear wall; 403. Drive gear; 404. Placement chamber; 405. Drum; 406. Protective net; 5. Control assembly; 501 502. Cutting disc; 503. Connecting rod; 504. Cutting cavity; 505. First magnetic pole; 506. Second magnetic pole; 607. First buffer assembly; 608. Buffer box; 609. First air inlet; 600. Second air inlet; 600. Third air inlet; 601. First air pipe; 602. Second air pipe; 603. Buffer plate; 604. Buffer cavity; 605. Convection pipe; 610. Flow diffuser; 701. Fan blade control assembly; 702. Cavity; 703. Extrusion section; 704. Limiting slider; 705. Rotating ring; 706. Adjusting block; 707. Return spring. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] The embodiments of the present invention will now be described.

[0034] A pressure swing adsorption oxygen generator, as shown in Figures 1-6, includes an oxygen generator body 1.

[0035] Please refer to Figure 1. The oxygen concentrator body 1 includes:

[0036] The support plate 101 is used to support the chassis of the main component, and the bottom of the chassis is equipped with casters for easy movement of the oxygen generator body 1.

[0037] Main body 102 is used to protect the main components of the oxygen generator body 1, including molecular sieve, balance tank, etc.

[0038] The load-bearing handle 103 is used to assist in moving the oxygen concentrator body 1;

[0039] The control unit 104 is used to control the operation of the oxygen generator body 1, so that the oxygen generator body 1 can operate at different levels according to different users;

[0040] Oxygen supply port 105, from which all oxygen produced by the oxygen generator body 1 is supplied.

[0041] Please refer to Figures 1-3. The side wall of the oxygen generator body 1 is provided with an air outlet component 2, which assists in the outlet of a mixture of nitrogen, argon and carbon dioxide.

[0042] Specifically, the gas outlet assembly 2 includes a gas outlet pipe 201 disposed on the outer wall of the main body 102, and a gas chamber 202 is provided inside the gas outlet pipe 201. One side of the gas outlet pipe 201 is connected to an air inlet end 203 that communicates with the gas chamber 202, and the air inlet end 203 communicates with a nitrogen outlet inside the main body 102.

[0043] Please refer to Figure 3. The exhaust assembly 2 is equipped with a second buffer assembly 3. The second buffer assembly 3 buffers the kinetic energy of the exhaust gas, thereby reducing the kinetic energy of the exhaust gas, i.e., reducing the air pressure, and thus achieving the effect of noise reduction.

[0044] Specifically, the second buffer assembly 3 includes a first fan blade 301 installed inside the air outlet pipe 201, and a connecting shaft 303 is provided on the inner side of the first fan blade 301. A second fan blade 304 is installed on one side of the connecting shaft 303, and the ends of the second fan blade 304 and the first fan blade 301 are both connected to a drive shaft 302 extending into the connecting shaft 303.

[0045] Please refer to Figures 3-4. A protective component 4 is provided on the outer side of the second buffer component 3 at the end face of the air outlet component 2. The protective component 4 controls the opening and closing of the end of the air outlet pipe 201. When there is no air outlet, the protective door 401 is closed to prevent dust and other impurities from entering. When air outlet is in operation, the protective door 401 opens and the protective net 406 unfolds to prevent impurities in the gas from being discharged to the outside, thus achieving a two-way dustproof effect.

[0046] Specifically, the protective component 4 includes a protective door 401 installed at the end of the air outlet pipe 201, and the end of the protective door 401 is provided with a driven toothed wall 402. A drive gear 403 is installed on the inner wall of the air outlet pipe 201, and the end of the drive gear 403 is connected to a drive source. The drive gear 403 is meshed with the driven toothed wall 402, and the protective door 401 is slidably connected to the inner wall of the air outlet pipe 201. There are two sets of protective doors 401, and the two sets of protective doors 401 are symmetrically arranged. One set of protective doors 401 has a placement cavity 404 inside, and a roller 405 is installed inside the placement cavity 404. A protective net 406 is sleeved on the outer wall of the roller 405, and the end of the protective net 406 is connected to the end of the second set of protective doors 401.

[0047] Please refer to Figures 3 and 5. The inner side of the second buffer component 3 is also provided with a control component 5. The control component 5 realizes the electronic control effect of the drive source through the rotation speed of the fan blades, thus ensuring the noise reduction effect.

[0048] Specifically, the control component 5 includes a cutting disc 501 sleeved on the outer wall of the connecting shaft 303, and the cutting disc 501 is slidably connected to the outer wall of the connecting shaft 303. The end of the cutting disc 501 is connected to a connecting rod 502 extending to the end of the second fan blade 304. The inner wall of the air outlet pipe 201 is provided with a cutting cavity 503, and the inner wall of the cutting cavity 503 is equipped with a first magnetic pole 504. The inner wall of the other side of the cutting cavity 503 is equipped with a second magnetic pole 505, and the second magnetic pole 505 is opposite to the first magnetic pole 504. The inner wall of the air outlet pipe 201 is also equipped with a current sensor that is electrically connected to the first magnetic pole 504 and the second magnetic pole 505, and the current sensor is electrically connected to the drive source of the drive gear 403 and the drive source of the rotating ring 704.

[0049] Please refer to Figure 6. Inside the gas outlet assembly 2, on the other side of the second buffer assembly 3, a first buffer assembly 6 is provided. The first buffer assembly 6 reduces noise in the gas outlet by significantly reducing the pressure and power of the gas.

[0050] Specifically, the first buffer assembly 6 includes a buffer box 601 installed inside the air outlet pipe 201. One end of the buffer box 601 is provided with a first air inlet 602 and a second air inlet 603 that communicate with the air outlet assembly 2 at the air inlet end. A third air inlet 604 that communicates with the air outlet assembly 2 at the air inlet end is provided between the first air inlet 602 and the second air inlet 603. A first air pipe 605 is connected to one side of the first air inlet 602, and a second air pipe 606 is connected to one side of the second air inlet 603. Multiple sets of buffer plates 607 are installed inside the first air pipe 605 and the second air pipe 606. A convection pipe 609 is provided at the output port of the first air pipe 605 and the second air pipe 606. A buffer cavity 608 is provided on one side of the convection pipe 609, and a diffuser 610 that communicates with the air cavity 202 is connected to the other side of the convection pipe 609.

[0051] Please refer to Figure 7. The connecting shaft 303 is equipped with a fan blade control component 7. The fan blade control component 7 can adjust the rotational friction of the fan blades, thereby ensuring the noise reduction effect.

[0052] Specifically, the fan blade control assembly 7 includes a cavity 701 opened inside the connecting shaft 303, and a pressing part 702 is provided on the inner wall of the connecting shaft 303 outside the transmission shaft 302. The end of the pressing part 702 is fixed inside the cavity 701 with a limiting slider 703, and the limiting slider 703 is slidably connected to the inner wall of the cavity 701. A rotating ring 704 is also slidably connected inside the cavity 701, and the rotating ring 704 is connected to an external drive source. An adjusting block 705 is provided on the inner end face of the rotating ring 704. A reset spring 706 connected to the inner wall of the cavity 701 is also installed at the end of the pressing part 702.

[0053] The working principle of the present invention is as follows: First, the main body 102 is started by the control unit 104. After waiting for two minutes, the oxygen produced can be used through the oxygen supply port 105. The mixed gas with nitrogen as the main component generated during the oxygen production process will be discharged through the gas outlet pipe 201.

[0054] Specifically, the gas enters the air chamber 202 through the air inlet end 203. At this time, the gas will be diverted by the first air inlet 602, the second air inlet 603 and the third air inlet 604 and enter the first air pipe 605, the second air pipe 606 and the buffer chamber 608 respectively. Then the gas will flow in the first air pipe 605 and the second air pipe 606 and push the buffer plate 607 to rotate. At this time, the kinetic energy of the gas will be reduced due to pushing the buffer plate 607 to rotate.

[0055] Furthermore, when the gas flows out of the first trachea 605 and the second trachea 606, the two airflows will convection, thereby reducing the kinetic energy of the gas again. The convection gas will flow into the air chamber 202 through the convection pipe 609 and the diffuser 610. The diffuser 610 enlarges the gas output port, which also reduces the kinetic energy of the gas.

[0056] In addition, the gas in the buffer chamber 608 will flow along the inner wall of the trachea to the inside of the bend. When the gas inside the bend reaches the top of the bend, it will turn back, thus forming a reverse flow of air. The reverse flow of air will meet the gas flowing behind it, thus canceling out some of the kinetic energy through convection, further reducing the kinetic energy of the gas.

[0057] Furthermore, the gas will continue to flow and will cause the second blade 304 to rotate. The rotation of the second blade 304 will consume the kinetic energy of the gas. In addition, the gas will also flow to the first blade 301, causing the first blade 301 to rotate. The rotation of the first blade 301 will also consume the kinetic energy of the gas. Thus, after the gas has been weakened by multiple kinetic energy reduction processes, it will be discharged from the exhaust pipe 201 with low noise.

[0058] When the second blade 304 rotates, it drives the cutting disc 501 to rotate via the connecting rod 502. As a result, the cutting disc 501 cuts magnetic lines of force in the cutting cavity 503, generating an induced current. At this time, the current sensor starts the drive source of the drive gear 403 through the microcontroller. The drive gear 403 starts to rotate. After the drive gear 403 rotates, it drives the protective door 401 to move through the action of the driven tooth wall 402, causing the protective door 401 to move outward, thereby opening the end of the air outlet pipe 201 to facilitate the gas outlet. When the protective door 401 is opened, the protective net 406 will also unfold, thereby filtering the exhaust gas and preventing impurities from entering the air and causing pollution.

[0059] When the oxygen concentrator 1 is powered to its maximum, the amount of gas discharged will also increase. As a result, the second fan blade 304 will rotate faster under the action of the gas, which will also cause the cutting disc 501 to rotate faster, and the induced current will also increase. When the current sensor detects that the induced current has increased to a value exceeding the set value, the current sensor will cause the drive source of the rotating ring 704 to rotate. After the rotating ring 704 rotates, it will drive the adjusting block 705 to rotate. The adjusting block 705 will then squeeze the limiting slider 703, causing the limiting slider 703 to slide on the inner wall of the cavity 701 and causing the squeezing part 702 to move closer to the drive shaft 302. The larger the induced current, the larger the rotation angle of the rotating ring 704, that is, the greater the squeezing force of the squeezing part 702 on the drive shaft 302. As the squeezing part 702 squeezes the drive shaft 302, the friction force that the drive shaft 302 needs to overcome to rotate will increase. Therefore, the noise reduction problem of the oxygen concentrator 1 at high power can be specifically addressed.

[0060] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A pressure swing adsorption oxygen generator, comprising an oxygen generator body (1), characterized in that: The oxygen generator body (1) has an air outlet assembly (2) on its side wall, and a second buffer assembly (3) is installed inside the air outlet assembly (2). A protective assembly (4) is provided on the outer side of the second buffer assembly (3) at the end face of the air outlet assembly (2), and a control assembly (5) is also provided on the inner side of the second buffer assembly (3). A first buffer assembly (6) is provided inside the air outlet assembly (2) at the other end of the second buffer assembly (3). The second buffer assembly (3) includes a first fan blade (301) installed inside the air outlet pipe (201). A connecting shaft (303) is provided on the inner side of a fan blade (301). A second fan blade (304) is installed on one side of the connecting shaft (303), and the ends of the second fan blade (304) and the first fan blade (301) are both connected to a transmission shaft (302) extending into the connecting shaft (303). A fan blade control assembly (7) is provided inside the connecting shaft (303). The fan blade control assembly (7) includes a cavity (701) opened inside the connecting shaft (303), and a pressing part is provided on the inner wall of the connecting shaft (303) outside the transmission shaft (302). 702), the end of the extrusion part (702) is located inside the cavity (701) and a limiting slider (703) is fixed therein, and the limiting slider (703) is slidably connected to the inner wall of the cavity (701). A rotating ring (704) is also slidably connected inside the cavity (701), and the rotating ring (704) is connected to an external driving source. An adjusting block (705) is provided on the inner end face of the rotating ring (704). A reset spring (706) connected to the inner wall of the cavity (701) is also installed at the end of the extrusion part (702); the control component (5) includes A cutting disc (501) is sleeved on the outer wall of the connecting shaft (303); a cutting cavity (503) is opened on the inner wall of the air outlet pipe (201), and a first magnetic pole (504) is installed on the inner wall of the cutting cavity (503). A second magnetic pole (505) is installed on the inner wall of the other side of the cutting cavity (503), and the second magnetic pole (505) is opposite to the first magnetic pole (504). A current sensor that is electrically connected to the first magnetic pole (504) and the second magnetic pole (505) is also installed on the inner wall of the air outlet pipe (201), and the current sensor is electrically connected to the drive source of the rotating ring (704).

2. The pressure swing adsorption oxygen generator according to claim 1, characterized in that: The oxygen generator body (1) includes a support plate (101) with casters, and a main body (102) is installed on the top of the support plate (101). A force-bearing handrail (103) is fixed on the top of the main body (102), and a control unit (104) is provided at the end of the main body (102). An oxygen supply port (105) is opened at the end of the main body (102) below the control unit (104).

3. The pressure swing adsorption oxygen generator according to claim 1, characterized in that: The gas outlet assembly (2) includes a gas outlet pipe (201) disposed on the outer wall of the main body (102), and a gas chamber (202) is provided inside the gas outlet pipe (201). One side of the gas outlet pipe (201) is connected to an air inlet end (203) that communicates with the gas chamber (202), and the air inlet end (203) communicates with the nitrogen outlet inside the main body (102).

4. The pressure swing adsorption oxygen generator according to claim 1, characterized in that: The protective component (4) includes a protective door (401) installed at the end of the air outlet pipe (201), and the end of the protective door (401) is provided with a driven toothed wall (402). A drive gear (403) is installed on the inner wall of the air outlet pipe (201), and the end of the drive gear (403) is connected to a drive source. The drive gear (403) meshes with the driven toothed wall (402), and the protective door (401) is slidably connected to the inner wall of the air outlet pipe (201).

5. A pressure swing adsorption oxygen generator according to claim 1, characterized in that: There are two sets of protective doors (401), and the two sets of protective doors (401) are symmetrically arranged. One set of protective doors (401) has a placement cavity (404) inside, and a roller (405) is installed inside the placement cavity (404). A protective net (406) is sleeved on the outer wall of the roller (405), and the end of the protective net (406) is connected to the end of the second set of protective doors (401).

6. A pressure swing adsorption oxygen generator according to claim 4, characterized in that: The control component (5) includes a cutting disc (501) sleeved on the outer wall of the connecting shaft (303), and the cutting disc (501) is slidably connected to the outer wall of the connecting shaft (303). The end of the cutting disc (501) is connected to a connecting rod (502) extending to the end of the second fan blade (304). The inner wall of the air outlet pipe (201) is provided with a cutting cavity (503), and the inner wall of the cutting cavity (503) is equipped with a first magnetic pole (504). The inner wall of the other side of the cutting cavity (503) is equipped with a second magnetic pole (505), and the second magnetic pole (505) is opposite to the first magnetic pole (504).

7. A pressure swing adsorption oxygen generator according to claim 3, characterized in that: The first buffer assembly (6) includes a buffer box (601) installed inside the air outlet pipe (201), and a first air inlet (602) and a second air inlet (603) communicating with the air outlet assembly (2) are provided on one side of the buffer box (601). A third air inlet (604) communicating with the air outlet assembly (2) is provided between the first air inlet (602) and the second air inlet (603). A first air pipe (604) is connected to one side of the first air inlet (602). 05), and a second air pipe (606) is connected to one side of the second air inlet (603). Multiple sets of buffer plates (607) are installed inside the first air pipe (605) and the second air pipe (606). A convection pipe (609) is provided at the output port of the first air pipe (605) and the second air pipe (606). A buffer cavity (608) is opened on one side of the convection pipe (609), and a diffuser (610) connected to the air cavity (202) is connected to the other side of the convection pipe (609).

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