Air filtering device for oxygen preparation

Abstract

The utility model relates to the technical field of air filtration for oxygen preparation, in particular to an air filtration device for oxygen preparation, which enables filter cloth to be more convenient to disassemble and assemble, facilitates cleaning and replacement of the filter cloth, brings convenience to workers and improves practicability. Comprising a cylinder body, a filtering assembly and a binding assembly, a flange connecting ring is integrally and fixedly arranged at the rear end of the cylinder body, a semicircular opening is formed in the top of the cylinder body, a carrying handle is fixedly arranged in the middle of the outer wall of an arc-shaped outer cover, and an arc-shaped sealing cover matched with the semicircular opening is fixedly arranged on the inner wall of the arc-shaped outer cover; the arc-shaped outer cover covers the cylinder body through the matching of the arc-shaped sealing cover and the semicircular opening, two groups of arc-shaped clamping plates are symmetrically and fixedly arranged on the inner wall of the arc-shaped sealing cover, a round frame is clamped between the two groups of arc-shaped clamping plates, the outer wall of the round frame is in sealing contact with the inner wall of the cylinder body, and one ends of the two groups of nylon bandages are fixedly connected to the left end of the arc-shaped outer cover. The binding device is used for binding the arc-shaped outer cover.

Description

Technical Field

[0001] This utility model relates to the technical field of air filtration for oxygen production, and in particular to an air filtration device for oxygen production. Background Technology

[0002] Oxygen is the most widely distributed element in nature and is the most abundant element. It is needed in various fields, including hydrocarbon oxidation, wastewater treatment, metal cutting and welding, metallurgy, medicine, rocket propellant, and for animals and humans to breathe in aviation, aerospace and diving.

[0003] In existing technologies, pressure swing adsorption (PSA) is commonly used to produce oxygen. The principle is to use molecular sieves to adsorb nitrogen from the air, thereby separating oxygen from the air. Alternatively, molecular sieves can be used to first adsorb oxygen from the air and then desorb it to obtain oxygen. When producing oxygen in oxygen-generating equipment, since air is adsorbed, an air filter needs to be installed at the air inlet of the equipment to remove dust and impurities and ensure air cleanliness.

[0004] However, existing air filtration devices have certain drawbacks. The filter cloth inside the existing air filtration devices is relatively difficult to disassemble and assemble, making it inconvenient to clean and replace the filter cloth, causing inconvenience to the staff and lacking practicality. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an air filtration device for oxygen preparation that makes it easier to assemble and disassemble the filter cloth, facilitates cleaning and replacement of the filter cloth, brings convenience to the staff, and improves practicality.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an air filtration device for oxygen preparation, comprising a cylinder, a filter assembly, and a fastening assembly. A flange connecting ring is integrally fixed at the rear end of the cylinder, and a semi-circular opening is provided at the top of the cylinder. The filter assembly includes an arc-shaped outer cover, a handle fixedly fixed in the middle of the outer wall of the arc-shaped outer cover, and an arc-shaped sealing cover fixedly fixed on the inner wall of the arc-shaped outer cover, matching the semi-circular opening. The arc-shaped outer cover is mounted on the cylinder through the mating cover of the arc-shaped sealing cover and the semi-circular opening. Two sets of arc-shaped clamping plates are symmetrically fixed on the inner wall of the arc-shaped sealing cover. A circular frame is fitted between the arc-shaped clamping plates. A filter cloth is fixed on the inner wall of the circular frame, and the outer wall of the circular frame is in sealed contact with the inner wall of the cylinder. The fastening assembly includes two sets of nylon straps. One end of each set of nylon straps is fixedly connected to the left end of the arc-shaped outer cover. Two sets of connecting rings are symmetrically rotated on the right end of the arc-shaped outer cover. The other ends of the two sets of nylon straps pass through the two sets of connecting rings respectively. Loose-faced hook and loop fasteners are fixedly connected to the outer wall of each set of nylon straps. The hook and loop fasteners are positioned close to the connecting rings and are pasted onto the loose-faced hook and loop fasteners. The two sets of nylon straps are tied to the outer wall of the bottom of the cylinder.

[0008] Preferably, an annular sealing gasket is fixedly connected to the rear end of the flange connecting ring.

[0009] Preferably, a sealing strip is fixedly connected to the inner wall of the arc-shaped outer cover, and the sealing strip surrounds the arc-shaped sealing cover.

[0010] Preferably, the inner sides of both sets of arc-shaped plates are fixedly connected with fastening strips.

[0011] Preferably, anti-slip pads are fixedly connected to the inner walls of both sets of nylon straps.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, the flange connecting ring is fixedly installed at the air inlet of the oxygen generator by bolt connection, so that the cylinder body is connected to the air inlet. During oxygen production, the air is filtered through the filter cloth to remove dust and impurities. When the filter cloth needs to be cleaned or replaced, the hook-and-loop fastener is peeled off from the loop fastener, and then the nylon strap is pulled out from the connecting ring. The arc-shaped outer cover can then be lifted vertically by the handle to open the semi-circular opening. The circular frame and filter cloth are then removed through the clamping of the arc-shaped clamping plate. Finally, the circular frame and filter cloth are removed from between the arc-shaped clamping plates. Then, the filter cloth can be cleaned or replaced together. After cleaning or replacing, the round frame is installed between the two sets of arc-shaped plates, so that the outer wall of the round frame abuts against the inner wall of the arc-shaped sealing cover. Next, the arc-shaped outer cover is installed on the cylinder, so that the arc-shaped sealing cover is fastened on the semi-circular opening. The semi-circular opening is closed, and then the nylon strap is passed through the connecting ring. After tightening the nylon strap, the hook-and-loop fastener is attached to the loop fastener, so that the nylon strap is tied to the bottom of the cylinder. The arc-shaped outer cover is then closed, and the installation is completed. This makes it easier to disassemble and assemble the filter cloth, making it easier to clean and replace the filter cloth, bringing convenience to the staff and improving its practicality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the bottom isometric structure of this utility model;

[0015] Figure 3 This is an isometric structural diagram of the middle cylinder of this utility model;

[0016] Figure 4 This is a partial isometric structural diagram of the bottom left side of this utility model;

[0017] Figure 5 This is a utility model Figure 4 A partial isometric structural schematic diagram;

[0018] The following are labels in the attached diagram: 1. Cylinder body; 2. Flange connecting ring; 3. Semi-circular opening; 4. Arc-shaped outer cover; 5. Arc-shaped sealing cover; 6. Arc-shaped clamping plate; 7. Handle; 8. Circular frame; 9. Filter cloth; 10. Nylon strap; 11. Connecting ring; 12. Textured Velcro; 13. Hook Velcro; 14. Circular sealing gasket; 15. Sealing strip; 16. Fastening strip; 17. Anti-slip pad. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model. Example

[0020] Please see Figures 1-5 This utility model discloses an air filtration device for oxygen preparation, comprising a cylindrical body 1. A flange connecting ring 2 is integrally fixed at the rear end of the cylindrical body 1. A semi-circular opening 3 is provided at the top of the cylindrical body 1. A handle 7 is fixedly provided in the middle of the outer wall of an arc-shaped outer cover 4. An arc-shaped sealing cover 5 is fixedly provided on the inner wall of the arc-shaped outer cover 4, matching the semi-circular opening 3. The arc-shaped outer cover 4 is mounted on the cylindrical body 1 through the mating of the arc-shaped sealing cover 5 and the semi-circular opening 3. Two sets of arc-shaped clamping plates 6 are symmetrically fixed on the inner wall of the arc-shaped sealing cover 5. A circular frame 8 is clamped between the two sets of arc-shaped clamping plates 6. A filter cloth 9 is fixedly provided on the inner wall of the circular frame 8. The outer wall of the circular frame 8... The two sets of nylon straps 10 are sealed to the inner wall of the cylinder 1. One end of each set of nylon straps 10 is fixedly connected to the left end of the arc-shaped outer cover 4. Two sets of connecting rings 11 are symmetrically rotated on the right end of the arc-shaped outer cover 4. The other ends of the two sets of nylon straps 10 pass through the two sets of connecting rings 11 respectively. Loose-faced hook and loop fasteners 12 and hook and loop fasteners 13 are fixedly connected to the outer wall of each set of nylon straps 10. The hook and loop fasteners 13 are positioned close to the connecting rings 11 and are attached to the loose-faced hook and loop fasteners 12. The two sets of nylon straps 10 are tied to the bottom outer wall of the cylinder 1. In use, the flange connecting ring 2 is fixedly installed on the oxygen generator by bolt connection. At the air inlet, the cylinder 1 is connected to the air inlet. During oxygen production, the air is filtered through the filter cloth 9 to remove dust and impurities. When the filter cloth needs to be cleaned or replaced, the hook-and-loop fastener 13 is peeled off the loop fastener 12, and then the nylon strap 10 is pulled out from the connecting ring 11. The curved outer cover 4 can then be lifted vertically by the handle 7 to open the semi-circular opening 3. The circular frame 8 and filter cloth 9 can be removed by the locking mechanism of the curved clamping plate 6. Then, the circular frame 8 and filter cloth 9 can be removed from between the curved clamping plates 6 for cleaning or replacement. After cleaning or replacement, the circular frame 8 and filter cloth 9 can be removed from the cylinder 12. The frame 8 is inserted between the two sets of arc-shaped plates 6, so that the outer wall of the round frame 8 abuts against the inner wall of the arc-shaped sealing cover 5. Then, the arc-shaped outer cover 4 is installed on the cylinder 1, so that the arc-shaped sealing cover 5 is fastened on the semi-circular opening 3. The semi-circular opening 3 is closed. Then, the nylon strap 10 is passed through the connecting ring 11. After tightening the nylon strap 10, the hook-and-loop fastener 13 is attached to the loop fastener 12, so that the nylon strap 10 is tied to the bottom of the cylinder 1. The arc-shaped outer cover 4 is then closed, and the installation is completed. This makes it easier to disassemble and assemble the filter cloth, making it easier to clean and replace the filter cloth, bringing convenience to the staff and improving its practicality.

[0021] The flange connecting ring 2 is fixedly connected to an annular sealing gasket 14 at its rear end. By setting the annular sealing gasket 14, the flange connecting ring 2 can be more tightly and reliably connected to the air inlet of the equipment during installation, thereby improving the sealing performance of the flange connecting ring 2 during connection.

[0022] A sealing strip 15 is fixedly connected to the inner wall of the arc-shaped outer cover 4, and the sealing strip 15 surrounds the arc-shaped sealing cover 5. By setting the sealing strip 15, the arc-shaped outer cover 4 can be more tightly closed, and the sealing performance of the arc-shaped outer cover 4 after it is closed can be improved.

[0023] Both sets of arc-shaped clamping plates 6 have fastening strips 16 fixedly connected to their inner sides; by setting the fastening strips 16, the arc-shaped clamping plates 6 can be more tightly and securely clamped to the circular frame 8.

[0024] Both sets of nylon straps 10 have anti-slip pads 17 fixedly connected to their inner walls. By setting the anti-slip pads 17, the friction between the inner side of the nylon strap 10 and the outer wall of the cylinder 1 can be increased after the nylon strap 10 is secured, thus preventing slippage between the nylon strap 10 and the outer wall of the cylinder 1.

[0025] This utility model discloses an air filtration device for oxygen production. In operation, the flange connecting ring 2 is fixedly installed at the air inlet of the oxygen generator using bolts, connecting the cylinder 1 to the air inlet. During oxygen production, the air is filtered through the filter cloth 9 to remove dust and impurities. When the filter cloth needs cleaning or replacement, the hook-and-loop fastener 13 is peeled off from the loose-fitting hook-and-loop fastener 12, and the nylon strap 10 is pulled out from the connecting ring 11. The curved outer cover 4 can then be lifted vertically by the handle 7, opening the semi-circular opening 3. The circular frame 8 and the filter cloth are then secured by the arc-shaped clamping plate 6. 9. Remove the round frame 8 and filter cloth 9 from between the arc-shaped clamping plates 6. They can then be cleaned or replaced together. After cleaning or replacing, insert the round frame 8 between the two sets of arc-shaped clamping plates 6, so that the outer wall of the round frame 8 abuts against the inner wall of the arc-shaped sealing cover 5. Then, install the arc-shaped outer cover 4 onto the cylinder 1, so that the arc-shaped sealing cover 5 is fastened onto the semi-circular opening 3. Close the semi-circular opening 3, then pass the nylon strap 10 through the connecting ring 11. After tightening the nylon strap 10, stick the hook-and-loop fastener 13 onto the loop fastener 12, so that the nylon strap 10 is tied to the bottom of the cylinder 1 and the arc-shaped outer cover 4 is closed. The installation is now complete.

[0026] The present invention relates to an air filtration device for oxygen preparation. Its installation, connection, or setting methods are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An air filtering device for oxygen production, characterized by, It includes a cylinder (1), a filter assembly and a binding assembly; The cylinder (1) is integrally provided with a flange connecting ring (2) at the rear end, and a semicircular opening (3) is formed in the top of the cylinder (1); The filter assembly includes an arc-shaped outer cover (4), a handle (7) is fixedly arranged on the outer wall of the arc-shaped outer cover (4), an arc-shaped sealing cover (5) is fixedly arranged on the inner wall of the arc-shaped outer cover (4) and matched with the semicircular opening (3), the arc-shaped outer cover (4) is covered on the cylinder (1) through the cooperation of the arc-shaped sealing cover (5) and the semicircular opening (3), two groups of arc-shaped clamping plates (6) are symmetrically fixed on the inner wall of the arc-shaped sealing cover (5), a circular frame (8) is clamped between the two groups of arc-shaped clamping plates (6), a filter cloth (9) is fixedly arranged on the inner wall of the circular frame (8), and the outer wall of the circular frame (8) is in sealing contact with the inner wall of the cylinder (1); The binding assembly includes two groups of nylon binding belts (10), one end of each of the two groups of nylon binding belts (10) is fixedly connected to the left end of the arc-shaped outer cover (4), and the arc-shaped outer cover (4) is bound.

2. The air filtering device for oxygen production as claimed in claim 1, wherein, The right end of the arc-shaped outer cover (4) is symmetrically provided with two groups of connecting rings (11), the other ends of the two groups of nylon binding belts (10) respectively pass through the two groups of connecting rings (11), the outer walls of the two groups of nylon binding belts (10) are fixedly connected with a velvet magic tape (12) and a hook magic tape (13), the hook magic tape (13) is located close to the connecting ring (11), the hook magic tape (13) is pasted on the velvet magic tape (12), and the two groups of nylon binding belts (10) are bound on the outer wall of the bottom of the cylinder (1).

3. An air filter device for oxygen production as claimed in claim 2, wherein, The rear end of the flange connecting ring (2) is fixedly connected with a ring-shaped sealing gasket (14).

4. The air filter for oxygen production as claimed in claim 3, wherein The inner wall of the arc-shaped outer cover (4) is fixedly connected with a sealing rubber strip (15), and the sealing rubber strip (15) surrounds the arc-shaped sealing cover (5).

5. An air filter device for oxygen production as claimed in claim 4, wherein, The inner sides of the two groups of arc-shaped clamping plates (6) are fixedly connected with fastening rubber strips (16).

6. An air filter device for oxygen production as claimed in claim 5, wherein, The inner walls of the two groups of nylon binding belts (10) are fixedly connected with anti-skid rubber pads (17).

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