Air purification mechanism of portable oxygen generator

Abstract

The invention relates to an air purification mechanism of a portable oxygen generator, and belongs to the technical field of oxygen generators, the air purification mechanism of the portable oxygen generator comprises an oxygen generation box, one side of the oxygen generation box is provided with an air inlet cover, and the other side of the oxygen generation box is provided with an air outlet cover; a compressor and a molecular sieve communicating with the compressor are arranged on the inner side of the oxygen generation box, the air inlet end of the compressor communicates with an air purification mechanism communicating with the air inlet cover, and an oxygen pipe communicating with the molecular sieve is fixedly arranged on the upper side of the oxygen generation box; the air purification mechanism comprises a lower purification cylinder and an upper purification cylinder which are in sealing fit with each other, a plurality of lower filtering layers are arranged on the inner side of the lower purification cylinder, and a plurality of upper filtering layers attached to the lower filtering layers are arranged on the inner side of the upper purification cylinder. Impurities in air can be filtered through the multiple groups of upper filtering layers and lower filtering layers, the filtering area can be increased, and the air filtering effect is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of oxygen generators, and particularly relates to an air purification mechanism for a portable oxygen generator. Background Art

[0002] An oxygen generator is a type of machine for producing oxygen. Its principle is to use air separation technology. First, air is compressed at high density and then, due to the different condensation points of the components in the air, it is subjected to gas-liquid separation at a certain temperature, and then rectified to separate it into oxygen and nitrogen. Generally, since it is mostly used for producing oxygen, people are used to calling it an oxygen generator. Usually, a filter is set inside the oxygen generator before the air enters the compressor to purify the air.

[0003] For example, in a Chinese invention patent with the publication number CN107281844A and the name of an air purification net mechanism for an oxygen generator, it specifically includes a primary filter ring, a throttling ring, and a secondary filter ring; the primary filter ring is integrally formed by a first U-shaped part and a first circular tube part; the throttling ring is integrally formed by a first connecting ring part, a second connecting ring part, and a third connecting ring part arranged in sequence; a circular cavity is provided inside the first connecting ring part and the third connecting ring part, and a conical cavity is provided inside the second connecting ring part; the secondary filter ring is integrally formed by a second U-shaped part and a second circular tube part; the first U-shaped part is threadedly connected to the first connecting ring part, and the second U-shaped part is threadedly connected to the third connecting ring part. Although the above prior art facilitates the cleaning of the air inlet filter screen, due to the limited windward area of the filter screen, the filtering effect is limited. In order to increase the windward area for filtering, an air purification mechanism for a portable oxygen generator is now needed. Summary of the Invention

[0004] The purpose of the present invention is to provide an air purification mechanism for a portable oxygen generator with a simple structure and reasonable design to solve the above problems.

[0005] The present invention achieves the above purpose through the following technical solutions:

[0006] An air purification mechanism of a portable oxygen generator, including an oxygen generation box. An air inlet hood is arranged on one side of the oxygen generation box, and an air outlet hood is arranged on the other side of the oxygen generation box. A compressor and a molecular sieve communicated with the compressor are arranged inside the oxygen generation box. The air inlet end of the compressor is communicated with an air purification mechanism communicated with the air inlet hood. An oxygen pipe communicated with the molecular sieve is fixedly arranged on the upper side of the oxygen generation box. The air purification mechanism includes a lower purification cylinder and an upper purification cylinder which are hermetically and cooperatively matched with each other. A plurality of lower filter layers are arranged inside the lower purification cylinder, and a plurality of upper filter layers which are attached to the lower filter layers are arranged inside the upper purification cylinder. A rotating rod is rotatably arranged at the center inside the lower purification cylinder and the upper purification cylinder. A rotating assembly rotatably connected with the rotating rod is arranged at the center of a plurality of the lower filter layers and the upper filter layers. A plurality of self-rotating mechanisms and area increasing mechanisms for extruding the lower filter layers and the upper filter layers are arranged on the outer side of the rotating rod. A first rotating assembly and a second rotating assembly are respectively arranged at both ends of the rotating rod.

[0007] As a further optimized scheme of the present invention, the self-rotating mechanism includes a first straight rod rotatably arranged on one side of the rotating rod. A plurality of first arc-shaped rods for extruding one side of the lower filter layer and the upper filter layer are arranged on one side of the first straight rod. A self-rotating gear is fixedly arranged at one end of the first straight rod. Semi-circular racks meshing with the self-rotating gear are fixedly arranged on the inner side walls of the lower purification cylinder and the upper purification cylinder.

[0008] As a further optimized scheme of the present invention, the area increasing mechanism includes a second straight rod fixedly arranged on the other side of the rotating rod. A second arc-shaped rod for extruding the other side of the lower filter layer and the upper filter layer is arranged on one side of the second straight rod.

[0009] As a further optimized scheme of the present invention, the first rotating assembly includes a first impeller fixedly arranged at one end of the rotating rod. A plurality of first blades are equidistantly arranged on the circumference of one side of the first impeller. A conical block is fixedly arranged at the center of one side of the first impeller.

[0010] As a further optimized scheme of the present invention, the second rotating assembly includes a second impeller fixedly arranged at the other end of the rotating rod. A plurality of second blades are equidistantly arranged on the circumference of one side of the second impeller.

[0011] As a further optimized scheme of the present invention, an air inlet pipe is arranged at one end of the lower purification cylinder and the upper purification cylinder, and an air outlet pipe is arranged at the other end of the lower purification cylinder and the upper purification cylinder. A plurality of limiting grooves for cooperating with the lower filter layer and the upper filter layer are arranged on the inner walls of the lower purification cylinder and the upper purification cylinder. A plurality of chip discharging pipes are fixedly communicated with the bottom of the lower purification cylinder. The lower ends of the plurality of chip discharging pipes are jointly communicated with a collecting cylinder. A drawer is arranged inside the collecting cylinder. Limiting components for cooperating with both ends of the rotating rod are respectively arranged at both ends inside the lower purification cylinder.

[0012] As a further optimized solution of the present invention, the limiting component includes a positioning rod fixedly arranged inside the lower purification cylinder, and a limiting ring is fixedly arranged at the upper end of the positioning rod and rotatably sleeved outside the rotating rod.

[0013] As a further optimized solution of the present invention, the rotating component includes a rotating ring rotatably sleeved outside the rotating rod. A plurality of screw holes are formed on the outer side of the rotating ring. A lower semi-circular fixing ring fixedly matched with the rotating ring is fixedly arranged at the center of a plurality of the lower filter layers. The two sides of the lower semi-circular fixing ring are fixed by being matched with the screw holes through first screws. An upper semi-circular fixing ring fixedly matched with the rotating ring is fixedly arranged at the center of a plurality of the upper filter layers. The two sides of the upper semi-circular fixing ring are fixed by being matched with the screw holes through second screws.

[0014] As a further optimized solution of the present invention, a first connecting plate is fixedly arranged at the edge of the lower purification cylinder, and a second connecting plate matched with the first connecting plate is fixedly arranged at the edge of the upper purification cylinder. Connecting holes are formed on both the first connecting plate and the second connecting plate, and the first connecting plate and the second connecting plate are fixed by bolts passing through the connecting holes.

[0015] As a further optimized solution of the present invention, an operation panel is arranged on the upper side of the oxygen production box. One end of the air outlet pipe is fixedly communicated with an air delivery pipe communicated with the air inlet end of the compressor. There are two molecular sieves. One side of the two molecular sieves is communicated with an exhaust pipe communicated with the air outlet hood. The air outlet end of the compressor is communicated with a first connecting pipe communicated with the two molecular sieves. A first three-way valve is arranged between the first connecting pipe and the two molecular sieves. The oxygen outlet ends of the two molecular sieves are communicated with a second connecting pipe, and one ends of the two second connecting pipes are jointly communicated with a second three-way valve communicated with the oxygen pipe.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, by rotating the rotating rod, the second straight rod and the second arc rod on the other side of the rotating rod can also be driven to rotate. Since the second straight rod and the second arc rod are on the leeward side of the lower filter layer and the upper filter layer, when the second straight rod and the second arc rod rotate, the leeward side of the lower filter layer and the upper filter layer will be squeezed, so that the windward side of the lower filter layer and the upper filter layer bulges, thereby increasing the filtering area and improving the air filtering effect. And during the squeezing process, the impurities on the windward side of the lower filter layer and the upper filter layer can also be shaken off, thereby improving the impurity cleaning effect.

[0018] 2. In the present invention, by sucking air through the compressor, air can enter the interior of the air purification mechanism through the air inlet hood on one side of the oxygen generation tank. Since the air flow blows onto the first blades at one end of the lower purification cylinder and the upper purification cylinder, the rotation of the first impeller is driven by the multiple first blades, and the rotating rod on one side of the first impeller can be driven to rotate. When the rotating rod rotates, it can also drive the first straight rod to revolve around the rotating rod together, so that the self-rotating gear at one end of the first straight rod meshes with the semi-circular rack, enabling the first straight rod to rotate while revolving, and further driving the multiple first arc-shaped rods on the first straight rod to rotate. On the one hand, it can make the multiple first arc-shaped rods rotate and knock on the windward side of the lower filter layer and the upper filter layer, causing the dust on the windward side to fall off by knocking, cleaning the impurities on one side of the lower filter layer and the upper filter layer, improving the subsequent filtering effect, and also squeezing the windward side of the lower filter layer and the upper filter layer, causing the windward side of the lower filter layer and the upper filter layer to sink, thereby increasing the filtering area and improving the air filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall internal structure of the first portable oxygen generator of the present invention;

[0020] Figure 2 is a schematic diagram of the overall partial internal structure of the first air purification mechanism of the present invention;

[0021] Figure 3 is a schematic diagram of the overall partial internal structure of the second air purification mechanism of the present invention;

[0022] Figure 4 is a schematic diagram of the overall internal structure of the first air purification mechanism of the present invention;

[0023] Figure 5 is a schematic diagram of the overall internal structure of the second air purification mechanism of the present invention;

[0024] Figure 6 is a schematic diagram of the overall external structure of the air purification mechanism of the present invention;

[0025] Figure 7 is a schematic diagram of the overall internal structure of the second portable oxygen generator of the present invention;

[0026] Figure 8 is a schematic diagram of the overall external structure of the portable oxygen generator of the present invention;

[0027] Figure 9 is a schematic diagram of the overall internal structure of the third air purification mechanism of the present invention;

[0028] Figure 10 is a schematic diagram of the overall internal structure of the fourth air purification mechanism of the present invention;

[0029] Figure 11 is the enlarged view of area A in the present invention Figure 2 ;

[0030] Figure 12 is the enlarged view of area B in the present invention Figure 2 ;

[0031] Figure 13 is the enlarged view of area C in the present invention Figure 2 ;

[0032] Figure 14 is the enlarged view of area D in the present invention Figure 3 ;

[0033] Figure 15 is the enlarged view of area E in the present invention Figure 3 ;

[0034] Figure 16 is the enlarged view of area F in the present invention Figure 4 ;

[0035] Figure 17 is the enlarged view of area S in the present invention Figure 5 ;

[0036] Figure 18 is the enlarged view of area M in the present invention Figure 9 ;

[0037] Figure 19 is the enlarged view of area N in the present invention Figure 10 ;

[0038] In the figure: 1. Air purification mechanism; 101. Lower purification cylinder; 102. Upper purification cylinder; 2. Intake pipe; 3. Exhaust pipe; 4. Lower filter layer; 401. Lower semi-circular fixing ring; 5. Rotating rod; 6. Self-rotation mechanism; 601. First straight rod; 602. First arc-shaped rod; 603. Self-rotation gear; 604. Semi-circular rack; 7. Limit groove; 8. Area increasing mechanism; 801. Second straight rod; 802. Second arc-shaped rod; 9. First connecting plate; 10. Connecting hole; 11. Rotating assembly; 1101. Rotating ring; 1102. Screw hole; 1103. First screw; 1104. Second screw; 12. First rotating assembly; 1201. First impeller; 1202. First blade; 1203. Cone block; 13. Second rotating assembly; 1301. Second impeller; 1302. Second blade; 14. Upper filter layer; 1401. Upper semi-circular fixing ring; 15. Limit assembly; 1501. Limit ring; 1502. Positioning rod; 16. Second connecting plate; 17. Chip discharging pipe; 18. Collection cylinder; 19. Drawer; 20. Operation panel; 21. Oxygen generation box; 22. Intake hood; 23. Oxygen pipe; 24. Exhaust hood; 25. Compressor; 26. Molecular sieve; 27. First three-way valve; 28. First connecting pipe; 29. Second three-way valve; 30. Second connecting pipe; 31. Exhaust pipe; 32. Gas transmission pipe. Detailed implementation mode

[0039] The following further describes the present application in detail with reference to the accompanying drawings. It is necessary to point out here that the following specific implementation modes are only used to further explain the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0040] Embodiment 1

[0041] As Figure 1 、 Figure 7 、 Figure 8As shown in the figure, an air purification mechanism of a portable oxygen generator includes an oxygen generation box 21. An operation panel 20 is arranged on the upper side of the oxygen generation box 21. An air inlet hood 22 is arranged on one side of the oxygen generation box 21. An air purification mechanism 1 is communicated with one side of the air inlet hood 22. An air outlet hood 24 is arranged on the other side of the oxygen generation box 21. A compressor 25 is arranged at the inner bottom of the oxygen generation box 21. The air inlet end of the compressor 25 is communicated with an air delivery pipe 32. One end of the air purification mechanism 1 is communicated with the air inlet end of the compressor 25 through the air delivery pipe 32. Two molecular sieves 26 are arranged at the inner bottom of the oxygen generation box 21. The two molecular sieves 26 can be used alternately. The air outlet end of the compressor 25 is communicated with the two molecular sieves 26 respectively through a first connecting pipe 28 and a first three-way valve 27. The nitrogen air outlet ends of the two molecular sieves 26 are communicated with the air outlet hood 24 through an exhaust pipe 31. The oxygen air outlet ends of the two molecular sieves 26 are communicated with an oxygen pipe 23 through a second connecting pipe 30, a second three-way valve 29. The oxygen pipe 23 is arranged on the upper side of the oxygen generation box 21. When in use, the compressor 25 sucks in air for compression, so that the external air enters the inside of the air purification mechanism 1 through the air inlet hood 22 on one side of the oxygen generation box 21. The air is purified by the air purification mechanism 1, and then the purified air is introduced into the inside of the compressor 25 through the air delivery pipe 32 for compression. The compressed air separates oxygen through the molecular sieve 26, and the oxygen is introduced into the inside of the oxygen pipe 23 through the second connecting pipe 30 and the second three-way valve 29, and finally provided for personnel to use through the oxygen pipe 23.

[0042] Example 2

[0043] Based on Example 1, the further improvement lies in that, as Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown in the figure, the air purification mechanism 1 includes a lower purification cylinder 101 and an upper purification cylinder 102 that are hermetically fitted with each other. Both the lower purification cylinder 101 and the upper purification cylinder 102 adopt a semi-circular cavity structure. The lower purification cylinder 101 and the upper purification cylinder 102 cooperate with each other to form a sealed cylindrical cavity structure. A first connecting plate 9 is fixedly arranged at the edge of the lower purification cylinder 101, and a second connecting plate 16 that cooperates with the first connecting plate 9 is fixedly arranged at the edge of the upper purification cylinder 102. Connecting holes 10 are opened on both the first connecting plate 9 and the second connecting plate 16. During the installation and disassembly of the air purification mechanism 1, the first connecting plate 9 and the second connecting plate 16 can be fixed by passing bolts through the connecting holes 10, thereby enabling the installation and disassembly between the lower purification cylinder 101 and the upper purification cylinder 102, which is convenient for replacing the filter layer inside. One end of the lower purification cylinder 101 and the upper purification cylinder 102 is provided with an air inlet pipe 2, and the other end is provided with an air outlet pipe 3. A plurality of lower filter layers 4 are arranged on the inner side of the lower purification cylinder 101. In this embodiment, four lower filter layers 4 are provided, and the specific number can be set according to requirements. The lower filter layer 4 adopts a semi-circular structure. A plurality of upper filter layers 14 that are attached to the lower filter layers 4 are arranged on the inner side of the upper purification cylinder 102. The upper filter layer 14 adopts a semi-circular structure. The upper filter layer 14 and the lower filter layer 4 cooperate with each other to form a circular structure, and the circular structure is attached to the inner side walls of the lower purification cylinder 101 and the upper purification cylinder 102. Among them, four upper filter layers 14 and lower filter layers 4 form four groups of filter layers. Each layer of the filter layer can adopt different elastic filtering materials, such as elastic filter cotton or elastic activated carbon filter membrane. Semi-circular rings (not shown in the figure) are arranged at the edges of the four upper filter layers 14 and the lower filter layers 4. A plurality of limiting grooves 7 that cooperate with the semi-circular rings at the edges of the lower filter layer 4 and the upper filter layer 14 are arranged on the inner walls of the lower purification cylinder 101 and the upper purification cylinder 102. The limiting grooves 7 can clamp the edges of the lower filter layer 4 and the upper filter layer 14, and the edges of the lower filter layer 4 and the upper filter layer 14 can also be fixed in the limiting grooves 7 by screws to prevent the lower filter layer 4 and the upper filter layer 14 from sliding in the limiting grooves 7. Through the limiting grooves 7, the edges of the lower filter layer 4 and the upper filter layer 14 can be supported and fixed, preventing the edges of the lower filter layer 4 and the upper filter layer 14 from shifting, which affects subsequent cleaning and filtering effects. A rotating rod 5 is rotatably arranged at the center of the inner sides of the lower purification cylinder 101 and the upper purification cylinder 102. A plurality of chip discharging pipes 17 are fixedly communicated with the bottom of the lower purification cylinder 101. The chip discharging pipes 17 are located in front of the lower filter layer 4 (i.e., the windward side of the lower filter layer 4), which is convenient for discharging the impurities on the windward sides of the lower filter layer 4 and the upper filter layer 14. The lower ends of the plurality of chip discharging pipes 17 are jointly communicated with a collecting cylinder 18. A drawer 19 is arranged inside the collecting cylinder 18. The drawer 19 adopts a cavity structure with an open upper end. The drawer 19 can be pulled out through both sides of the collecting cylinder 18. When in use,The impurities on the windward side of the lower filter layer 4 and the upper filter layer 14 are guided into the interior of the collection cylinder 18 through the chip discharge pipe 17, and then collected through the drawer 19 inside the collection cylinder 18.

[0044] As Figure 2 , Figure 3 , Figure 4 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 As shown, at both inner ends of the lower purification cylinder 101, limiting components 15 are respectively arranged to cooperate with both ends of the rotating rod 5. The limiting component 15 includes a positioning rod 1502 fixedly arranged inside the lower purification cylinder 101. At the upper end of the positioning rod 1502, a limiting ring 1501 is fixedly arranged and rotatably sleeved outside the rotating rod 5. By limiting both ends of the rotating rod 5 through the limiting ring 1501, the rotating rod 5 can be prevented from shaking during rotation, avoiding affecting the transmission. At the centers of several lower filter layers 4 and upper filter layers 14, a rotating component 11 is arranged and rotatably connected to the rotating rod 5. The rotating component 11 includes a rotating ring 1101 rotatably sleeved outside the rotating rod 5. A plurality of screw holes 1102 are formed on the outer side of the rotating ring 1101. At the centers of several lower filter layers 4, a lower semi-circular fixing ring 401 fixedly cooperating with the rotating ring 1101 is fixedly arranged. Both sides of the lower semi-circular fixing ring 401 are fixed through the cooperation of the first screws 1103 and the screw holes 1102. At the centers of several upper filter layers 14, an upper semi-circular fixing ring 1401 fixedly cooperating with the rotating ring 1101 is fixedly arranged. Both sides of the upper semi-circular fixing ring 1401 are fixed through the cooperation of the second screws 1104 and the screw holes 1102. During installation, the lower semi-circular fixing ring 401 at the center of the lower filter layer 4 is attached to the outer side of the rotating ring 1101, and the lower semi-circular fixing ring 401 is fixed through the cooperation of the first screws 1103 and the screw holes 1102, so that the lower filter layer 4 can be fixed on the outer side of the rotating ring 1101. Similarly, the upper filter layer 14 can also be fixed on the outer side of the rotating ring 1101, enabling a circular structure formed by the lower filter layer 4 and the upper filter layer 14 to be fixed on the outer side of the rotating ring 1101. And the joint part of the lower filter layer 4 and the upper filter layer 14 is a wavy structure (not shown in the figure), making the joint effect of the two better, avoiding air leakage, and the lower filter layer 4 and the upper filter layer 14 being fixed inside the lower purification cylinder 101 and the upper purification cylinder 102 will not affect the free rotation of the rotating rod 5.

[0045] As Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 11 , Figure 12 , Figure 15, Figure 16 , Figure 17 As shown in Figure 16 and Figure 17 , one end of the rotating rod 5 is provided with a first rotating assembly 12. The first rotating assembly 12 includes a first impeller 1201 fixedly arranged at one end of the rotating rod 5. The first impeller 1201 is arranged on one side of the intake pipe 2. A plurality of first blades 1202 are equidistantly arranged on the circumferential side of the first impeller 1201. A conical block 1203 is fixedly arranged at the center of one side of the first impeller 1201. The conical block 1203 is located on one side of the intake pipe 2, which can cause the air entering from the intake pipe 2 to be shunted onto the first blades 1202, better driving the first blades 1202 to rotate. The other end of the rotating rod 5 is provided with a second rotating assembly 13. The second rotating assembly 13 includes a second impeller 1301 fixedly arranged at the other end of the rotating rod 5. A plurality of second blades 1302 are equidistantly arranged on the circumferential side of the second impeller 1301. Through the second blades 1302 and the second impeller 1301, the second impeller 1301 can be further driven to rotate before the wind enters the outlet pipe 3, thereby driving the rotating rod 5 to rotate, which is convenient for increasing the torque of the rotation of the rotating rod 5.

[0046] As Figure 9 , Figure 10 , Figure 18 , Figure 19As shown in the figure, several self-rotation mechanisms 6 for squeezing the lower filter layer 4 and the windward side of the upper filter layer 14 are arranged on the outer side of the rotating rod 5. The self-rotation mechanism 6 includes a first straight rod 601 rotatably arranged on one side of the rotating rod 5. Several first arc-shaped rods 602 on one side of the lower filter layer 4 and the upper filter layer 14 are arranged on the outer side of the first straight rod 601. In this embodiment, two first arc-shaped rods 602 are arranged, and the specific number can be set according to the actual situation. A closed area is formed between the first arc-shaped rod 602 and the first straight rod 601, and an activated carbon layer can be arranged in the closed area, which can make the air adsorb toxic gases during the flowing process and improve the cleaning effect of the air. The activated carbon layer inside the self-rotating first arc-shaped rod 602 can make the air flow more smoothly and improve the adsorption effect of air odor. Both the first straight rod 601 and the first arc-shaped rod 602 are arranged on the windward side of the lower filter layer 4 and the upper filter layer 14. A self-rotating gear 603 is fixedly arranged at one end of the first straight rod 601. At the same time, one end of the first straight rod 601 is rotatably connected to the rotating rod 5 through a rotating cylinder. Semi-circular racks 604 meshing with the self-rotating gear 603 are fixedly arranged on the inner side walls of the lower purification cylinder 101 and the upper purification cylinder 102. When the rotating rod 5 rotates, it can also drive the first straight rod 601 to revolve around the rotating rod 5 together, so that the self-rotating gear 603 at one end of the first straight rod 601 meshes with the semi-circular rack 604, which can make the first straight rod 601 rotate while revolving, and then drive the multiple first arc-shaped rods 602 on the first straight rod 601 to rotate. On the one hand, it can make the multiple first arc-shaped rods 602 rotate and knock on the windward side of the lower filter layer 4 and the upper filter layer 14, so that the dust on the windward side is knocked and vibrated off, and the impurities on one side of the lower filter layer 4 and the upper filter layer 14 are cleaned, improving the subsequent filtering effect. On the other hand, it can also rotate and squeeze the windward side of the lower filter layer 4 and the upper filter layer 14, making the windward side of the lower filter layer 4 and the upper filter layer 14 concave, thereby increasing the filtering area and improving the air filtering effect. When in use, the compressor 25 sucks air, which can make the air enter the inside of the air inlet pipe 2 through the air inlet cover 22 on one side of the oxygen generation tank 21, and make the air blow to one side of the first impeller 1201. Since the air flow blows on the first blades 1202 on one side of the first impeller 1201, the first impeller 1201 is driven to rotate by the multiple first blades 1202, which can drive the rotating rod 5 on one side of the first impeller 1201 to rotate, and then drive the first straight rod 601 and the first arc-shaped rod 602 on the rotating rod 5 to rotate. Since the first straight rod 601 and the first arc-shaped rod 602 are located on the windward side of the lower filter layer 4 and the upper filter layer 14, the impurities on the windward side of the lower filter layer 4 and the upper filter layer 14 will be squeezed and scraped off, and the impurities on the windward side of the lower filter layer 4 and the upper filter layer 14 will be cleaned. And because the filter surface is elastic and makes elastic vibration at the squeezing part, the dust will be further vibrated off, further improving the subsequent filtering effect. And by squeezing the windward side of the lower filter layer 4 and the upper filter layer 14,It can make the windward surface depression larger and improve the filtering effect.

[0047] As Figure 2 , Figure 3 , Figure 4 , Figure 12 , Figure 15 , Figure 16 As shown, a number of area increasing mechanisms 8 for the leeward side of the extrusion lower filter layer 4 and the upper filter layer 14 are provided on the outer side of the rotating rod 5. The area increasing mechanism 8 includes a second straight rod 801 fixedly arranged on the other side of the rotating rod 5. A second arc rod 802 on the other side of the extrusion lower filter layer 4 and the upper filter layer 14 is arranged on one side of the second straight rod 801. A closed area is formed between the second arc rod 802 and the second straight rod 801. An activated carbon layer can be arranged in the closed area, which can make the air adsorb toxic gases during the flowing process and improve the cleaning effect of the air. During use, by rotating the rotating rod 5, the second straight rod 801 and the second arc rod 802 on the other side of the rotating rod 5 are driven to rotate. Since the second straight rod 801 and the second arc rod 802 are on the leeward side of the lower filter layer 4 and the upper filter layer 14, when the second straight rod 801 and the second arc rod 802 rotate, the leeward side of the lower filter layer 4 and the upper filter layer 14 will be extruded, making the windward side of the lower filter layer 4 and the upper filter layer 14 bulge, thereby increasing the filtering area and improving the air filtering effect. And during the extrusion process, the impurities on the windward surface of the lower filter layer 4 and the upper filter layer 14 can also be shaken off, thereby improving the impurity cleaning effect.

[0048] It should be noted that for the air purification mechanism of the portable oxygen generator, during use, the compressor 25 operates to allow air to enter the interior of the air purification mechanism 1 through the air inlet hood 22 on one side of the oxygen generation tank 21. The process of air passing through the air purification mechanism 1 is as follows: Air enters the interior of the intake pipe 2 through the air inlet hood 22 on one side of the oxygen generation tank 21, causing the air to blow onto one side of the first impeller 1201. Due to the air flow blowing onto the first blades 1202 on one side of the first impeller 1201, the first impeller 1201 is driven to rotate by the multiple first blades 1202, which can drive the rotating rod 5 on one side of the first impeller 1201 to rotate. The rotation of the rotating rod 5 can drive the first straight rod 601 to revolve around the rotating rod 5 together, causing the self-rotating gear 603 at one end of the first straight rod 601 to mesh with the semi-circular rack 604, enabling the first straight rod 601 to rotate while revolving, and further driving the multiple first arc-shaped rods 602 on the first straight rod 601 to rotate. Since the first straight rod 601 and the first arc-shaped rods 602 are located on the windward side of the lower filter layer 4 and the upper filter layer 14, the windward side of the lower filter layer 4 and the upper filter layer 14 is recessed, thereby increasing the filtration area and improving the air filtration effect. On the one hand, the multiple first arc-shaped rods 602 can rotate to knock on the windward side of the lower filter layer 4 and the upper filter layer 14, causing the dust on the windward side to be knocked off and the knocked-off impurities to fall into the interior of the chip removal pipe 17. The hot air chip removal pipe 17 guides the impurities on the windward side of the lower filter layer 4 and the upper filter layer 14 into the interior of the collecting cylinder 18, and then collects them through the drawer 19 inside the collecting cylinder 18. Moreover, during the rotation of the rotating rod 5, it can also drive the second straight rod 801 and the second arc-shaped rod 802 on the other side of the rotating rod 5 to rotate. Since the second straight rod 801 and the second arc-shaped rod 802 are on the leeward side of the lower filter layer 4 and the upper filter layer 14, when the second straight rod 801 and the second arc-shaped rod 802 rotate, they will squeeze the leeward side of the lower filter layer 4 and the upper filter layer 14, causing the windward side of the lower filter layer 4 and the upper filter layer 14 to bulge, thereby increasing the filtration area and improving the air filtration effect. And during the squeezing process, it can also cause the impurities on the windward side of the lower filter layer 4 and the upper filter layer 14 to shake and fall off.

[0049] The above embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An air purification mechanism of a portable oxygen generator, comprising an oxygen generation box (21), characterized in that: On one side of the oxygen - making box (21), an air inlet hood (22) is provided. On the other side of the oxygen - making box (21), an air outlet hood (24) is provided. Inside the oxygen - making box (21), a compressor (25) and a molecular sieve (26) communicated with the compressor (25) are provided. The air inlet end of the compressor (25) is communicated with an air purification mechanism (1) that is communicated with the air inlet hood (22). On the upper side of the oxygen - making box (21), an oxygen pipe (23) communicated with the molecular sieve (26) is fixedly provided. The air purification mechanism (1) includes a lower purification cylinder (101) and an upper purification cylinder (102) that are hermetically and cooperatively engaged with each other. Inside the lower purification cylinder (101), a number of lower filter layers (4) are provided. Inside the upper purification cylinder (102), a number of upper filter layers (14) that are fitted with the lower filter layers (4) are provided. A rotating rod (5) is rotatably provided at the center inside the lower purification cylinder (101) and the upper purification cylinder (102). A rotating assembly (11) rotatably connected to the rotating rod (5) is provided at the center of a number of the lower filter layers (4) and the upper filter layers (14). On the outer side of the rotating rod (5), a self - rotating mechanism (6) and an area - increasing mechanism (8) for extruding the lower filter layers (4) and the upper filter layers (14) are provided. At both ends of the rotating rod (5), a first rotating assembly (12) and a second rotating assembly (13) are respectively provided.

2. The air purification mechanism of a portable oxygen generator according to claim 1, characterized in that: The self - rotating mechanism (6) includes a first straight rod (601) rotatably provided on one side of the rotating rod (5). On the outer side of the first straight rod (601), a number of first arc - shaped rods (602) for extruding one side of the lower filter layers (4) and the upper filter layers (14) are provided. One end of the first straight rod (601) is fixedly provided with a self - rotating gear (603). Semi - circular racks (604) engaged with the self - rotating gear (603) are fixedly provided on the inner side walls of the lower purification cylinder (101) and the upper purification cylinder (102).

3. The air purification mechanism of a portable oxygen generator according to claim 2, characterized in that: The area - increasing mechanism (8) includes a second straight rod (801) fixedly provided on the other side of the rotating rod (5). On one side of the second straight rod (801), a second arc - shaped rod (802) for extruding the other side of the lower filter layers (4) and the upper filter layers (14) is provided.

4. The air purification mechanism of a portable oxygen generator according to claim 3, characterized in that: The first rotating assembly (12) includes a first impeller (1201) fixedly provided at one end of the rotating rod (5). A number of first blades (1202) are equidistantly arranged on the circumference of one side of the first impeller (1201). A conical block (1203) is fixedly provided at the center of one side of the first impeller (1201).

5. The air purification mechanism of a portable oxygen generator according to claim 4, characterized in that: The second rotating assembly (13) includes a second impeller (1301) fixedly provided at the other end of the rotating rod (5). A number of second blades (1302) are equidistantly arranged on the circumference of one side of the second impeller (1301).

6. The air purification mechanism of a portable oxygen generator according to claim 1, characterized in that: One end of the lower purification cylinder (101) and the upper purification cylinder (102) is provided with an air inlet pipe (2), and the other end of the lower purification cylinder (101) and the upper purification cylinder (102) is provided with an air outlet pipe (3). A plurality of limiting grooves (7) cooperating with the lower filter layer (4) and the upper filter layer (14) are provided on the inner walls of the lower purification cylinder (101) and the upper purification cylinder (102). A plurality of chip discharge pipes (17) are fixedly communicated with the bottom of the lower purification cylinder (101). The lower ends of the plurality of chip discharge pipes (17) are jointly communicated with a collecting cylinder (18). A drawer (19) is arranged inside the collecting cylinder (18). Limiting components (15) cooperating with both ends of the rotating rod (5) are respectively arranged at both inner ends of the lower purification cylinder (101).

7. The air purification mechanism of a portable oxygen generator according to claim 6, characterized in that: The limiting component (15) includes a positioning rod (1502) fixedly arranged inside the lower purification cylinder (101). A limiting ring (1501) which is rotatably sleeved outside the rotating rod (5) is fixedly arranged at the upper end of the positioning rod (1502).

8. The air purification mechanism of a portable oxygen generator according to claim 7, characterized in that: The rotating component (11) includes a rotating ring (1101) rotatably sleeved outside the rotating rod (5). A plurality of screw holes (1102) are formed in the outer side of the rotating ring (1101). A lower semi-circular fixing ring (401) fixedly cooperating with the rotating ring (1101) is fixedly arranged at the center of the plurality of lower filter layers (4). Both sides of the lower semi-circular fixing ring (401) are fixed by cooperating with the screw holes (1102) through first screws (1103). An upper semi-circular fixing ring (1401) fixedly cooperating with the rotating ring (1101) is fixedly arranged at the center of the plurality of upper filter layers (14). Both sides of the upper semi-circular fixing ring (1401) are fixed by cooperating with the screw holes (1102) through second screws (1104).

9. The air purification mechanism of a portable oxygen generator according to claim 8, wherein: A first connecting plate (9) is fixedly arranged at the edge of the lower purification cylinder (101). A second connecting plate (16) cooperating with the first connecting plate (9) is fixedly arranged at the edge of the upper purification cylinder (102). Connecting holes (10) are formed in both the first connecting plate (9) and the second connecting plate (16). The first connecting plate (9) and the second connecting plate (16) are fixed by bolts passing through the connecting holes (10).

10. The air purification mechanism of a portable oxygen generator according to any one of claims 6-9, characterized in that: An operation panel (20) is arranged on the upper side of the oxygen generation box (21). One end of the air outlet pipe (3) is fixedly communicated with an air delivery pipe (32) communicated with the air inlet end of a compressor (25). There are two molecular sieves (26). One side of the two molecular sieves (26) is communicated with an exhaust pipe (31) communicated with an air outlet hood (24). The air outlet end of the compressor (25) is communicated with a first connecting pipe (28) communicated with the two molecular sieves (26). A first three-way valve (27) is arranged between the first connecting pipe (28) and the two molecular sieves (26). The oxygen outlet ends of the two molecular sieves (26) are communicated with a second connecting pipe (30). One ends of the two second connecting pipes (30) are jointly communicated with a second three-way valve (29) communicated with an oxygen pipe (23).

Images