Air filtering assembly of medical oxygen generator

Abstract

The utility model relates to the technical field of medical equipment, in particular to an air filtering assembly of a medical oxygen generator, which can simplify the operation without disassembling and assembling a box body and a frame, enables the filtering assembly to be disassembled and replaced more conveniently, and improves the use convenience. A left connecting pipe is communicated with the left end of the box body, two sets of supports are symmetrically and fixedly arranged at the bottom end of the fixing plate, a right connecting pipe is fixedly communicated with the fixing plate, a butt-joint frame matched with the box body is fixedly arranged at the left end of the fixing plate, a concentric-square-shaped sealing gasket is arranged on the inner wall of the butt-joint frame, and the box body is in butt joint with the butt-joint frame through matching with the concentric-square-shaped sealing gasket. The frame abuts against the right end of the air filtering plate under the action of a spring, transmission battens are hinged to the right ends of the two guide rods, the inner ends of the two transmission battens are hinged to the two threaded sleeve blocks respectively, two connecting plates are symmetrically and fixedly connected to the box body, and the left ends of the two guide rods are fixedly connected with the two connecting plates respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an air filtering component of a medical oxygen generator. Background Art

[0002] Common types of medical oxygen generators are pressure swing adsorption oxygen generators, which use pressure swing adsorption technology to produce oxygen and can extract oxygen from the air. Molecular sieves are filled in the medical oxygen generator, and the surface area of each gram of molecular sieve can reach 800 - 1000m 2 / g. Under pressurization, using the physical adsorption technology and desorption technology of molecular sieves, nitrogen in the air is adsorbed, and the unadsorbed oxygen is collected. Through purification treatment, relatively high-purity oxygen can be obtained.

[0003] Before the existing oxygen generator works, it is necessary to filter the air. When the service life of the internal filter element reaches the limit after the filter device has been used for a period of time, the filter element needs to be replaced. However, the consumables of the existing air filtering device are troublesome to replace, not easy to disassemble and assemble, and affect the work efficiency.

[0004] After retrieval, the patent publication number CN217431163U discloses an air filtering device of a medical oxygen generator. Although this filtering device can disassemble and replace the filtering component in the air filtering device, in actual operation, it is necessary to release the restriction on the box body first, then remove the box body, and then take out the frame from the box body before the filtering component can be taken out for replacement. Therefore, it is necessary to additionally disassemble and assemble the box body and the frame. In actual operation, the operation is relatively cumbersome, and it is not very convenient to disassemble and replace the filtering component, and the usability is insufficient. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides an air filtering component of a medical oxygen generator, which can simplify the operation without disassembling and assembling the box body and the frame, make it more convenient to disassemble and replace the filtering component, and improve the usability.

[0006] Technical Solution

[0007] To achieve the above object, the present utility model provides the following technical solution: A medical oxygen generator air filtration assembly, comprising a filtration mechanism and a driving mechanism. The filtration mechanism includes a box body and a fixing plate. The left end of the box body is communicatively connected with a left connecting pipe. Two groups of brackets are symmetrically and fixedly provided at the bottom end of the fixing plate. A right connecting pipe is fixedly communicated on the fixing plate. The left end of the fixing plate is fixedly provided with a docking frame that cooperates with the box body. A loop seal is provided on the inner wall of the docking frame. The box body is docked on the docking frame through cooperation with the loop seal. A limiting frame is fixedly connected to the inner wall of the box body. An air filtration plate is movably provided in the box body. The air filtration plate abuts against the limiting frame. And the air filtration plate is assembled by a HEPA plate, a semi-permeable membrane plate and an activated carbon plate. Four groups of guide pipes are symmetrically and fixedly connected to the left end of the fixing plate. Guide posts are slidably provided on the four groups of guide pipes. The left ends of the four groups of guide posts are fixedly connected with a frame. Springs are sleeved on the guide pipes and the guide posts. The two ends of the four groups of springs are respectively fixedly connected with the frame and the fixing plate. The frame abuts against the right end of the air filtration plate under the action of the spring. The driving mechanism includes a bidirectional threaded rod. Two groups of supports are symmetrically and fixedly provided on the outer wall of the right connecting pipe. Two groups of support plates are symmetrically and fixedly connected to the right end of the fixing plate. The bidirectional threaded rod is rotatably installed on the two groups of supports and the two groups of support plates. The bidirectional threaded rod vertically passes through the right connecting pipe. A handwheel is fixedly provided at the top end of the bidirectional threaded rod. Two groups of screw sleeve blocks are symmetrically screwed on the bidirectional threaded rod. Two groups of guide holes are symmetrically provided on the fixing plate. Two groups of guide rods are slidably provided on the fixing plate through cooperation with the guide holes. The right ends of the two groups of guide rods are respectively hinged with a transmission strip plate. The inner ends of the two groups of transmission strip plates are respectively hinged with the two groups of screw sleeve blocks. Two groups of connecting plates are symmetrically and fixedly connected to the box body. The left ends of the two groups of guide rods are respectively fixedly connected with the two groups of connecting plates.

[0008] Preferably, a rotating rod is rotatably and sealedly installed on the box body. Two groups of dial plates are symmetrically and fixedly connected to the outer wall of the rotating rod. The two groups of dial plates are located on the left side of the limiting frame. A turning handle is fixedly connected to the front end of the rotating rod.

[0009] Preferably, a rocking handle is fixedly provided at the top end of the handwheel.

[0010] Preferably, an anti-slip grip sleeve is fixedly sleeved on the outer wall of the rocking handle.

[0011] Preferably, sliding sleeves are fixedly provided in the two groups of guide holes on the fixing plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects: when in use, the box is initially pulled by the guide rod to dock with the docking frame, and is sealed by the cooperation of the circular sealing gasket. When the boxes are docked, the frame is squeezed by the limit frame and the air filter plate and moves to the right, so that the spring is compressed, and then the thrust generated by the compression of the spring makes the frame tightly against the air filter plate, and the air filter plate is firmly placed in the box by the clamping of the limit frame and the frame, and the air enters from the right connecting pipe, is filtered by the air filter plate, and is discharged from the left connecting pipe. When the air filter plate needs to be replaced, the two-way threaded rod is rotated by the hand wheel, so that the two-way threaded rod drives the screw sleeve block to move vertically outward, and then the screw sleeve block pushes the guide rod to slide to the left through the transmission strip plate, so that the guide rod passes The connecting plate pushes the box body to move to the left, thereby separating the box body from the docking frame. After the box body is separated from the docking frame, it will move to the left a proper distance to leave space for the removal of the air filter plate. During the movement of the box body to the left, the spring gradually rebounds. When the guide rod pushes the box body to the left to the maximum distance, the air filter plate can be taken out of the box body, and then a new air filter plate can be installed. The two-way threaded rod is then rotated in the opposite direction by the handwheel to re-dock the box body to the docking frame, and the air filter plate is supported by the frame. When replacing, the air filter plate can be disassembled and assembled by simply rotating the two-way threaded rod by the handwheel to control the docking and separation of the box body, thereby eliminating the need to disassemble and assemble the box body and the frame, thereby simplifying the operation and making it more convenient to disassemble and replace the filter assembly, thereby improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0014] Figure 2 It is a left-side axonometric structural schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the axonometric cross-section structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the partial cross-section structure of the axonometric measurement of the box body and the air filter plate in the utility model when they are matched;

[0017] Figure 5 It is a left axonometric structural diagram of the fixed plate in the utility model;

[0018] Figure 6 It is a schematic diagram of the axonometric structure of the frame, the guide tube and the guide column in the utility model;

[0019] Reference numerals in the drawings: 1, box body; 2, left connecting pipe; 3, fixing plate; 4, bracket; 5, right connecting pipe; 6, docking frame; 7, limiting frame; 8, air filter plate; 9, guide pipe; 10, guide post; 11, frame; 12, spring; 13, bidirectional threaded rod; 14, support; 15, support plate; 16, handwheel; 17, screw sleeve block; 18, guide rod; 19, drive strip plate; 20, connecting plate; 21, rotating rod; 22, dial plate; 23, wrench; 24, crank; 25, anti-slip grip; 26, sliding sleeve. Detailed implementation manners

[0020] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0021] Embodiment

[0022] Please refer to Figures 1-6, an air filtration assembly of a medical oxygen generator of the present utility model. A left connecting pipe 2 is connected and provided at the left end of the box body 1. Two groups of brackets 4 are symmetrically and fixedly provided at the bottom end of the fixing plate 3. A right connecting pipe 5 is fixedly communicated on the fixing plate 3. A docking frame 6 matched with the box body 1 is fixedly provided at the left end of the fixing plate 3. A ring-shaped sealing gasket is provided on the inner wall of the docking frame 6. The box body 1 is docked on the docking frame 6 through the cooperation with the ring-shaped sealing gasket. A limiting frame 7 is fixedly connected on the inner wall of the box body 1. An air filtration plate 8 is movably arranged in the box body 1. The air filtration plate 8 abuts against the limiting frame 7. And the air filtration plate 8 is assembled and composed of a HEPA plate, a semi-permeable membrane plate and an activated carbon plate. Four groups of guide pipes 9 are symmetrically and fixedly connected at the left end of the fixing plate 3. Guide posts 10 are slidably arranged on the four groups of guide pipes 9. A frame 11 is fixedly connected at the left ends of the four groups of guide posts 10. Springs 12 are sleeved on the guide pipes 9 and the guide posts 10. The two ends of the four groups of springs 12 are respectively fixedly connected with the frame 11 and the fixing plate 3. The frame 11 abuts against the right end of the air filtration plate 8 under the action of the spring 12. Two groups of supports 14 are symmetrically and fixedly provided on the outer wall of the right connecting pipe 5. Two groups of support plates 15 are symmetrically and fixedly connected at the right end of the fixing plate 3. A bidirectional threaded rod 13 is rotatably installed on the two groups of supports 14 and the two groups of support plates 15. The bidirectional threaded rod 13 vertically penetrates through the right connecting pipe 5. A hand wheel 16 is fixedly provided at the top end of the bidirectional threaded rod 13. Two groups of screw sleeve blocks 17 are symmetrically screwed and sleeved on the bidirectional threaded rod 13. Two groups of guide holes are symmetrically provided on the fixing plate 3. Two groups of guide rods 18 are slidably arranged on the fixing plate 3 through the cooperation of the guide holes. The right ends of the two groups of guide rods 18 are respectively hinged with transmission strip plates 19. The inner ends of the two groups of transmission strip plates 19 are respectively hinged with the two groups of screw sleeve blocks 17. Two groups of connecting plates 20 are symmetrically and fixedly connected on the box body 1. The left ends of the two groups of guide rods 18 are respectively fixedly connected with the two groups of connecting plates 20;During use, initially, the box body 1 is pulled by the guide rod 18 and docked on the docking frame 6, and sealed through the cooperation of the loop gasket. When the box body 1 is docked, the frame 11 is squeezed by the limit frame 7 and the air filter plate 8 and moves to the right, compressing the spring 12. Then, through the thrust generated by the compression of the spring 12, the frame 11 tightly abuts against the air filter plate 8. The air filter plate 8 is firmly placed in the box body 1 by the clamping of the limit frame 7 and the frame 11. Air enters through the right connecting pipe 5 and is discharged through the left connecting pipe 2 after being filtered by the air filter plate 8. When the air filter plate 8 needs to be replaced, the two-way threaded rod 13 is rotated by the handwheel 16, causing the two-way threaded rod 13 to drive the sleeve block 17 to move vertically outward. Then, the sleeve block 17 pushes the guide rod 18 to slide leftward through the transmission strip plate 19, and the guide rod 18 pushes the box body 1 to move leftward through the connecting plate 20, so that the box body 1 is separated from the docking frame 6. After the box body 1 is separated from the docking frame 6, it will also move leftward an appropriate distance to leave space for the disassembly of the air filter plate 8. During the leftward movement of the box body 1, the spring 12 gradually rebounds. When the guide rod 18 pushes the box body 1 to move leftward to the maximum distance, the air filter plate 8 can be taken out of the box body 1, and then a new air filter plate 8 is installed. Then, the two-way threaded rod 13 is rotated in the reverse direction by the handwheel 16 to re-dock the box body 1 into the docking frame 6 and hold the air filter plate 8 against the frame 11. During replacement, only by rotating the two-way threaded rod 13 with the handwheel 16 to control the docking and separation of the box body 1, the air filter plate 8 can be disassembled and assembled, so that it is not necessary to disassemble and assemble the box body and the frame, simplifying the operation, making the disassembly and replacement of the filter assembly more convenient, and improving the use convenience.;

[0023] A rotating rod 21 is rotatably and sealedly installed on the box body 1. Two groups of dial plates 22 are symmetrically and fixedly connected to the outer wall of the rotating rod 21. The two groups of dial plates 22 are located on the left side of the limit frame 7. A turning handle 23 is fixedly connected to the front end of the rotating rod 21. Initially, the dial plates 22 are vertically downward. When disassembling the air filter plate 8, when the guide rod 18 pushes the box body 1 to move to the leftmost side, there is a certain distance between the right end of the box body 1 and the docking frame 6. The rotating rod 21 is rotated by the turning handle 23 to push the air filter plate 8 out of the box body 1 to the right by the dial plates 22, thus further improving the convenience during the disassembly of the air filter plate 8.

[0024] A rocking handle 24 is fixedly provided at the top of the handwheel 16; by providing the rocking handle 24, the handwheel 16 can be rotated more conveniently.

[0025] An anti-slip handle sleeve 25 is fixedly sleeved on the outer wall of the rocking handle 24; by providing the anti-slip handle sleeve 25, it can prevent the hand from slipping when holding the rocking handle 24 to rotate the handwheel 16.

[0026] Sliding sleeves 26 are fixedly disposed in the two sets of guide holes on the fixing plate 3 ; by providing the sliding sleeves 26 , the guide rod 18 can slide more smoothly on the fixing plate 3 .

[0027] The utility model is an air filter assembly for a medical oxygen concentrator, and its working principle is that when in use, the box body 1 is initially pulled by the guide rod 18 to dock on the docking frame 6, and is sealed by the cooperation of the circular sealing gasket. When the box body 1 is docked, the frame 11 is squeezed by the limit frame 7 and the air filter plate 8 and moves to the right, so that the spring 12 is compressed, and then the thrust generated by the compression of the spring 12 makes the frame 11 tightly against the air filter plate 8, and the air filter plate 8 is firmly placed in the box body 1 through the clamping of the limit frame 7 and the frame 11. The air enters from the right connecting pipe 5, is filtered by the air filter plate 8, and is discharged from the left connecting pipe 2. When the air filter plate 8 needs to be replaced, the two-way threaded rod 13 is rotated by the hand wheel 16, so that the two-way threaded rod 13 drives the screw sleeve block 17 to move vertically outward, and then the screw sleeve block 17 pushes the guide rod 18 to slide to the left through the transmission strip plate 19, so that the guide rod 18 pushes the box body 1 to move to the left through the connecting plate 20, so that the box body 1 is separated from the docking frame 6. After the box body 1 is separated from the docking frame 6, it will move to the left for an appropriate distance to leave space for the disassembly of the air filter plate 8. During the movement of the box body 1 to the left, the spring 12 gradually rebounds. When the guide rod 18 pushes the box body 1 to move to the maximum distance to the left, the air filter plate 8 can be taken out of the box body 1, and then a new air filter plate 8 can be installed. The two-way threaded rod 13 is rotated in the opposite direction by the hand wheel 16 to make the box body 1 docked in the docking frame 6 again, and the air filter plate 8 is supported by the frame 11. When replacing, it is only necessary to rotate the two-way threaded rod 13 by the hand wheel 16 to control the docking and separation of the box body 1, so that the air filter plate 8 can be disassembled and assembled. When disassembling the air filter plate 8, when the guide rod 18 pushes the box body 1 to move to the far left, the right end of the box body 1 is a certain distance from the docking frame 6. The rotating rod 21 is rotated by the twisting handle 23, so that the paddle plate 22 pushes the air filter plate 8 to the right from the box body 1, thereby further improving the convenience of disassembling the air filter plate 8.

[0028] The utility model is an air filter component for a medical oxygen concentrator, and its installation method, connection method or setting method are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented; the air filter plate in the utility model is composed of a HEPA plate, a semi-permeable membrane plate and an activated carbon plate. This structure has been used in an air filter device for a medical oxygen concentrator disclosed in patent publication number CN217431163U, and belongs to the prior art, so no excessive elaboration is made.

[0029] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A medical oxygen generator air filtration component, characterized in that, It includes a filtering mechanism and a driving mechanism; The filtering mechanism comprises a box body (1) and a fixed plate (3), the left end of the box body (1) is connected with a left connecting pipe (2), the bottom end of the fixed plate (3) is symmetrically fixed with two sets of brackets (4), the fixed plate (3) is fixedly connected with a right connecting pipe (5), the left end of the fixed plate (3) is fixedly provided with a docking frame (6) matched with the box body (1), the inner wall of the docking frame (6) is provided with a circular sealing gasket, the box body (1) is docked with the docking frame (6) by matching with the circular sealing gasket, the inner wall of the box body (1) is fixedly connected with a limited position frame (7), an air filter plate (8) is movably provided in the box body (1), and air passes through The filter plate (8) abuts against the limit frame (7), and the air filter plate (8) is composed of a HEPA plate, a semi-permeable membrane plate and an activated carbon plate. The left end of the fixed plate (3) is symmetrically fixedly connected with four groups of guide tubes (9), and the four groups of guide tubes (9) are all slidably provided with guide columns (10). The left ends of the four groups of guide columns (10) are fixedly connected with a frame (11). The guide tubes (9) and the guide columns (10) are sleeved with springs (12). The two ends of the four groups of springs (12) are respectively fixedly connected to the frame (11) and the fixed plate (3). Under the action of the springs (12), the frame (11) abuts against the right end of the air filter plate (8); The driving mechanism comprises a bidirectional threaded rod (13), two sets of supports (14) are symmetrically fixed on the outer wall of the right connecting tube (5), two sets of support plates (15) are symmetrically fixedly connected to the right end of the fixing plate (3), the bidirectional threaded rod (13) is rotatably mounted on the two sets of supports (14) and the two sets of support plates (15), the bidirectional threaded rod (13) vertically passes through the right connecting tube (5), a hand wheel (16) is fixed on the top of the bidirectional threaded rod (13), and a symmetrical hand wheel (16) is fixed on the bidirectional threaded rod (13). The screw sleeve is provided with two groups of screw sleeve blocks (17), two groups of guide holes are symmetrically provided on the fixing plate (3), two groups of guide rods (18) are slidably provided on the fixing plate (3) through the cooperation of the guide holes, the right ends of the two groups of guide rods (18) are hinged with transmission strips (19), the inner ends of the two groups of transmission strips (19) are respectively hinged with the two groups of screw sleeve blocks (17), and two groups of connecting plates (20) are symmetrically fixedly connected on the box body (1), and the left ends of the two groups of guide rods (18) are respectively fixedly connected with the two groups of connecting plates (20).

2. The air filtration component of a medical oxygen generator according to claim 1, characterized in that, A rotating rod (21) is rotatably mounted on the box body (1), and two groups of shifting plates (22) are symmetrically fixedly connected to the outer wall of the rotating rod (21). The two groups of shifting plates (22) are located on the left side of the limiting frame (7), and a twisting handle (23) is fixedly connected to the front end of the rotating rod (21).

3. The air filtration component of a medical oxygen generator according to claim 2, characterized in that, A crank (24) is fixedly provided on the top of the hand wheel (16).

4. The air filtration component of a medical oxygen generator according to claim 3, characterized in that, An anti-slip handle cover (25) is fixedly sleeved on the outer wall of the crank handle (24).

5. The air filtration assembly of a medical oxygen generator according to claim 4, wherein, Sliding sleeves (26) are fixedly arranged in the two groups of guide holes on the fixing plate (3).

Images