An air inlet filter convenient to disassemble for an oxygen generator

Abstract

The utility model discloses an oxygen generator air inlet filter convenient to dismount, it includes filter core cylinder: the surface welding of filter core cylinder has L shaped board, the inner wall of L shaped board is connected with the U -shaped frame through bolt fixing, the inner wall fixed connection of U -shaped frame has the axle rod, the end of axle rod is through to the outside of U -shaped frame and is equipped with bearing disc, the top of U -shaped frame is equipped with the cylinder through bolt fixed mounting, the output fixed connection of cylinder has rectangle board. The utility model discloses through cylinder drives rectangle board to remove, at this moment under the location effect of bearing disc to strip board, make rectangle board drive strip board to rotate through connecting rod, then strip board drives cover board through crosspiece and covers filter core cylinder, can reach the quick opening and closing of the connection between the cylinder cover and the cylinder body, thereby make filter core convenient to dismount, and further improve the convenience of filter core replacement process behind.

Description

Technical Field

[0001] This utility model belongs to the field of oxygen generator technology, and in particular relates to an air intake filter for an oxygen generator that is easy to disassemble. Background Technology

[0002] Portable oxygen concentrators use AC220V power and an internal power supply as their power source, and air as their raw material. Employing high-quality molecular sieves, they separate 78% nitrogen and 21% oxygen from the air using pressure swing adsorption (PSA) at room temperature to obtain 90%–96% oxygen. This produces high-purity oxygen that meets medical-grade molecular sieve oxygen production standards, which is then delivered to patients via nasal cannulas or oxygen masks. During operation, compressed air is injected into a sealed adsorption tower containing molecular sieves, causing the pressure inside the tower to rise. As the pressure increases, the molecular sieves adsorb a large amount of nitrogen from the compressed air, while the oxygen remains unadsorbed. Nitrogen gas exists in gaseous form and is collected through certain pipelines. This process is usually called "adsorption". When the molecular sieve in the container adsorbs nitrogen to the critical state of adsorption saturation, the adsorption tower is purged to reduce pressure. As the pressure in the adsorption tower decreases, the molecular sieve's ability to adsorb nitrogen decreases, and nitrogen is released back into the gas phase from inside the molecular sieve and discharged as waste gas. This process is usually called "desorption". To ensure a continuous and stable output of oxygen, oxygen generators often use two molecular sieve adsorption towers. Through control valves, one adsorption tower is in the adsorption process while the other adsorption tower is in the desorption process. The two work alternately to complete the continuous oxygen production process.

[0003] When using an oxygen concentrator, the air entering the machine needs to be filtered to ensure its cleanliness. The air intake filter contains a filter element, which needs to be replaced frequently. The filter element is sealed by the closure of the cylinder and the cap, which are usually fixed together with bolts. Replacing the filter element requires turning several bolts, which is somewhat inconvenient. Therefore, an air intake filter for oxygen concentrators that is easy to disassemble is needed, allowing for quick opening and closing of the connection between the cap and the cylinder, thus facilitating the removal of the filter element and improving the convenience of subsequent filter element replacement. Utility Model Content

[0004] The purpose of this utility model is to provide an easily disassembled air intake filter for an oxygen generator, which allows for quick opening and closing of the connection between the cylinder cover and the cylinder body, thereby facilitating the disassembly of the filter element and improving the convenience of subsequent filter element replacement, thus solving the technical problems mentioned in the background art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An easily disassembled air intake filter for an oxygen generator, comprising a filter cartridge: an L-shaped plate is welded to the surface of the filter cartridge, a U-shaped frame is fixedly connected to the inner wall of the L-shaped plate by bolts, a shaft is fixedly connected to the inner wall of the U-shaped frame, the end of the shaft extends to the outside of the U-shaped frame and is fitted with a bearing plate, a cylinder is fixedly installed on the top of the U-shaped frame by bolts, a rectangular plate is fixedly connected to the output end of the cylinder, a strip plate is fixedly connected to the surface of the bearing plate, a connecting rod is rotatably connected between the rectangular plate and the strip plate through a rotating shaft, a horizontal plate is welded to the bottom of the strip plate, a cover plate is fixedly connected to the bottom of the horizontal plate, an oxygen generator is arranged on the left side of the filter cartridge, and the oxygen generator is equipped with an air compressor and a molecular sieve tower.

[0006] Preferably, the surface of the U-shaped frame is fixedly connected to a slide rail by bolts, and a slider is slidably connected to the surface of the slide rail, with the slider being fixedly connected to the rectangular plate.

[0007] Preferably, a sealing ring is adhered to the bottom of the cover plate, and the sealing ring is a rubber sealing ring.

[0008] Preferably, the bearing disc is a high-carbon chromium bearing steel disc.

[0009] Preferably, the filter cartridge, air compressor, and molecular sieve tower are connected in sequence via conduits.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model uses a cylinder to move a rectangular plate. At this time, under the limiting action of the bearing plate on the strip plate, the rectangular plate drives the strip plate to rotate through the connecting rod. Then, the strip plate drives the cover plate through the horizontal plate to close the filter element cylinder. This achieves quick opening and closing of the connection between the cylinder cover and the cylinder body, thereby making the filter element easy to disassemble and improving the convenience of subsequent filter element replacement.

[0012] 2. This utility model limits the movement of the rectangular plate by using the cooperation of the slide rail and the slider, which avoids the rectangular plate from shaking during the movement and thus improves the stability of the rectangular plate when it moves.

[0013] 3. This utility model uses a sealing ring to seal the closure between the cover plate and the filter cartridge, preventing gaps from forming between them and thus improving the sealing performance of the connection. Attached Figure Description

[0014] in:

[0015] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0016] Figure 2 This is one embodiment of the present utility model. Figure 1 A magnified view of point A in the middle;

[0017] Figure 3 This is a three-dimensional schematic diagram of a strip and a connecting rod according to an embodiment of the present invention.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Filter cartridge; 2. L-shaped plate; 3. U-shaped frame; 4. Shaft; 5. Bearing disc; 6. Cylinder; 7. Rectangular plate; 8. Strip plate; 9. Connecting rod; 10. Slide rail; 11. Slider; 12. Horizontal plate; 13. Cover plate; 14. Sealing ring; 15. Oxygen generator; 16. Air compressor; 17. Molecular sieve tower. Detailed Implementation

[0020] In the following description, embodiments of the easily detachable air intake filter for an oxygen generator according to the present invention will be described with reference to the accompanying drawings.

[0021] Example 1:

[0022] Figure 1-3 This invention illustrates an easily disassembled air intake filter for an oxygen concentrator, comprising a filter cartridge 1. An L-shaped plate 2 is welded to the surface of the filter cartridge 1. A U-shaped frame 3 is bolted to the inner wall of the L-shaped plate 2. A shaft 4 is bolted to the inner wall of the U-shaped frame 3. The end of the shaft 4 extends to the outer side of the U-shaped frame 3 and is fitted with a bearing disc 5. A cylinder 6 is bolted to the top of the U-shaped frame 3. A rectangular plate 7 is bolted to the output end of the cylinder 6. A strip plate 8 is bolted to the surface of the bearing disc 5. A connecting rod 9 rotatably connects the rectangular plate 7 and the strip plate 8 via a rotating shaft. A slide rail 10 is bolted to the surface of the U-shaped frame 3. A slider 11 is slidably connected to the surface of the slide rail 10. The slider 11 is connected to the rectangular plate... The rectangular plates 7 are fixedly connected. The movement of the rectangular plates 7 is limited by the cooperation of the slide rail 10 and the slider 11, which prevents the rectangular plates 7 from shaking during movement and thus improves the stability of the rectangular plates 7 during movement. A horizontal plate 12 is welded to the bottom of the strip plate 8. A cover plate 13 is fixedly connected to the bottom of the horizontal plate 12. A sealing ring 14 is affixed to the bottom of the cover plate 13. The sealing ring 14 is a rubber sealing ring. The sealing ring 14 seals the closure between the cover plate 13 and the filter cartridge 1, preventing gaps between them and thus improving the sealing performance of the connection between them. An oxygen generator 15 is set on the left side of the filter cartridge 1. The oxygen generator 15 is equipped with an air compressor 16 and a molecular sieve tower 17.

[0023] Example 2:

[0024] Figure 1-3This invention discloses an easily disassembled air intake filter for an oxygen concentrator according to an embodiment of the present invention. The filter includes a filter cartridge 1. An L-shaped plate 2 is welded to the surface of the filter cartridge 1. A U-shaped frame 3 is bolted to the inner wall of the L-shaped plate 2. A shaft 4 is bolted to the inner wall of the U-shaped frame 3. The end of the shaft 4 extends to the outer side of the U-shaped frame 3 and is fitted with a bearing disc 5. A cylinder 6 is bolted to the top of the U-shaped frame 3. A rectangular plate 7 is bolted to the output end of the cylinder 6. A strip plate 8 is bolted to the surface of the bearing disc 5. A connecting rod 9 is rotatably connected between the rectangular plate 7 and the strip plate 8 via a rotating shaft. A horizontal plate 12 is welded to the bottom of the strip plate 8. A cover plate 13 is bolted to the bottom of the horizontal plate 12. An oxygen concentrator 15 is located on the left side of the filter cartridge 1. The oxygen concentrator 15 is equipped with an air compressor 16 and a molecular sieve tower 17. The bearing disc 5 is made of high-carbon chromium bearing steel. The filter cartridge 1, the air compressor 16, and the molecular sieve tower 17 are sequentially connected by conduits.

[0025] Working principle: When using this utility model, the user turns on the air compressor 16, allowing outside air to be filtered through the filter cartridge 1 and then compressed by the air compressor 16. The air then enters the molecular sieve tower 17 for oxygen and nitrogen separation, and then outputs oxygen through the oxygen generator 15. If it is necessary to replace the filter element in the filter cartridge 1, the cylinder 6 is turned on to move the rectangular plate 7. At this time, under the limiting action of the bearing disc 5 on the strip plate 8, the rectangular plate 7 drives the strip plate 8 to rotate through the connecting rod 9. Then, the strip plate 8 drives the cover plate 13 through the horizontal plate 12 to open the filter cartridge 1, and then the filter element in the filter cartridge 1 can be replaced. This realizes the quick opening and closing of the connection between the cover and the cartridge body, thereby making the filter element easy to disassemble and improving the convenience of subsequent filter element replacement.

[0026] In summary, this easily disassembled air intake filter for oxygen concentrators uses cylinder 6 to move rectangular plate 7. Under the limiting effect of bearing disc 5 on strip plate 8, rectangular plate 7 rotates strip plate 8 via connecting rod 9. Strip plate 8 then drives cover plate 13 via horizontal plate 12 to close the filter cartridge 1, achieving rapid opening and closing of the connection between the cover and the cartridge body. This facilitates filter cartridge disassembly and improves the convenience of subsequent filter cartridge replacement.

Claims

1. An easily disassembled air intake filter for an oxygen concentrator, characterized in that, The filter cartridge (1) includes an L-shaped plate (2) welded to its surface. A U-shaped frame (3) is bolted to the inner wall of the L-shaped plate (2). A shaft (4) is bolted to the inner wall of the U-shaped frame (3). The end of the shaft (4) extends to the outside of the U-shaped frame (3) and is fitted with a bearing plate (5). A cylinder (6) is bolted to the top of the U-shaped frame (3). A rectangular plate is bolted to the output end of the cylinder (6). (7) A strip plate (8) is fixedly connected to the surface of the bearing disc (5). A connecting rod (9) is rotatably connected between the rectangular plate (7) and the strip plate (8) through a rotating shaft. A horizontal plate (12) is welded to the bottom of the strip plate (8). A cover plate (13) is fixedly connected to the bottom of the horizontal plate (12). An oxygen generator (15) is provided on the left side of the filter cartridge (1). The oxygen generator (15) is equipped with an air compressor (16) and a molecular sieve tower (17).

2. The easily disassembled air intake filter for an oxygen concentrator according to claim 1, characterized in that, The surface of the U-shaped frame (3) is fixedly connected to a slide rail (10) by bolts, and a slider (11) is slidably connected to the surface of the slide rail (10). The slider (11) is fixedly connected to the rectangular plate (7).

3. The easily disassembled air intake filter for an oxygen concentrator according to claim 2, characterized in that, A sealing ring (14) is attached to the bottom of the cover plate (13), and the sealing ring (14) is a rubber sealing ring.

4. The easily disassembled air intake filter for an oxygen concentrator according to claim 3, characterized in that, The bearing disc (5) is a high-carbon chromium bearing steel disc.

5. The easily disassembled air intake filter for an oxygen concentrator according to claim 4, characterized in that, The filter cartridge (1), air compressor (16), and molecular sieve tower (17) are connected in sequence by conduits.

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