Air filtering device applied to oxygen generation system

Abstract

The utility model discloses an air filtering device applied to an oxygen generation system, which relates to the technical field of air filtering and comprises a filtering pipeline, an air inlet pipe opening and an air outlet pipe opening. A plurality of front-back through mounting holes are formed in the two mounting frames at equal intervals in an array mode, a plurality of air filtering components are arranged at the right end of the filtering pipeline at equal intervals in an array mode, and mounting assemblies are arranged at the positions, close to the front sides and the rear sides of the air filtering components, of the right end of the filtering pipeline correspondingly. The upper side and the lower side, close to the air filtering component, of the left end of the filtering pipeline are each provided with a pop-up assembly. According to the utility model, the fixing frame is inserted into the filtering pipeline along the mounting opening, and the sliding plates at the two ends respectively slide in the positioning grooves, so that the fixing frame and the filtering pipeline are mounted and positioned, and then the positioning plate is fixed outside the filtering pipeline through the mounting assembly, so that the fixing frame is fixed in the filtering pipeline.

Description

Technical Field

[0001] This utility model relates to the field of air filtration technology, specifically to an air filtration device applied in an oxygen generation system. Background Technology

[0002] An oxygen generation system mainly includes steps such as air compression, condensation and separation, molecular sieve adsorption, oxygen collection, and control system regulation. Applications of oxygen generation systems include healthcare, home care, and various industrial sectors. In the healthcare field, oxygen concentrators can improve exercise endurance, provide high-concentration oxygen, and assist in treatment, among other functions. Oxygen is typically required as a raw material. Currently, oxygen generation mostly uses adsorption towers for air separation to produce oxygen. Air, as a raw material for oxygen production, is readily available, but it needs to be purified before entering the adsorption tower. This is typically done using filters to remove dust particles and odors from the air. The existing technology has the following problems:

[0003] Under prolonged and high-load operation, the filtration efficiency of existing air filtration components gradually decreases, resulting in insufficient filtration of impurities in the air. Replacing the filter element is cumbersome and affects the effectiveness of the device. Furthermore, during filter element replacement, the connection between the filter element and the external connector of the device is not secure, which can easily lead to leakage and affect the filtration efficiency of the device. Utility Model Content

[0004] This invention provides an air filtration device for use in an oxygen generation system to solve the problems existing in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An air filtration device for use in an oxygen generation system includes a filter pipe, an inlet pipe, and an outlet pipe. One end of the inlet pipe is fixedly connected to the front end of the filter pipe, and one end of the outlet pipe is fixedly connected to the rear end of the filter pipe. Mounting brackets are fixedly connected to the outer walls of both the inlet and outlet pipes. Several through mounting holes are equidistantly arranged inside the two mounting brackets. Several air filter components are equidistantly arranged on the right end of the filter pipe. Mounting components are respectively provided on the front and rear sides of the right end of the filter pipe near the air filter components. Pop-out components are provided on the upper and lower sides of the left end of the filter pipe near the air filter components. The left side of the outer wall of the air filter component extends into the interior of the pop-out components.

[0007] A further improvement of this utility model is that the air filtration component includes a fixed frame, a positioning plate, a filter element, two sliding plates, two connecting plates, a sealing strip, and two inserts. One end of the positioning plate is fixedly connected to the right end of the fixed frame. The outer wall of the filter element is fixedly connected to the inner wall of the fixed frame. One end of each of the two sliding plates is fixedly connected to the upper and lower ends of the outer wall of the fixed frame. One end of each of the two connecting plates is fixedly connected to the upper and lower sides of the front and rear ends of the positioning plate. A through-hole is provided in the middle of each of the two connecting plates. One end of the sealing strip is fixedly connected to the outer side of the left end of the positioning plate near the sliding plate. One end of each of the two inserts is fixedly connected to the upper and lower sides of the left end of the fixed frame.

[0008] A further improvement of this utility model is that the materials of the plurality of filter elements respectively include glass fiber filter material, activated carbon filter material and HEPA filter element.

[0009] A further improvement of this utility model is that: the right end of the filter pipe is provided with an equidistant array of installation ports that are adapted to the fixed frame and communicate with the inside and outside; the upper and lower sides of the inner wall of the filter pipe are provided with positioning grooves that are adapted to the sliding plate and communicate with the installation ports; the outer wall of the right end of the filter pipe near the installation port is provided with a sealing groove that is adapted to the sealing strip; and the upper and lower sides of the left end of the filter pipe are respectively provided with positioning holes that are adapted to the insertion post and communicate with the inside and outside.

[0010] A further improvement of this utility model is that: the outer wall of the fixing frame passes through the installation port and is set inside the filter pipe; the outer wall of the sliding plate is slidably connected to the inner wall of the positioning groove; the outer wall of the sealing strip is engaged with the inner wall of the sealing groove; the outer wall of the insertion post is inserted into the inside of the positioning hole; the installation assembly includes a screw and a nut; one end of the screw is fixedly connected to the outer side of the left end of the filter pipe near the sealing groove.

[0011] A further improvement of this utility model is that the outer wall of the screw passes through the insertion hole and is connected to the internal thread of the nut.

[0012] A further improvement of the present invention is that the pop-out assembly includes a sleeve, a pressure plate, and a return spring. The inner wall of the sleeve is provided with a moving groove. The outer wall of the pressure plate is slidably connected to the inner wall of the moving groove. The return spring is disposed inside the moving groove. One end of the return spring is fixedly connected to one end of the inner wall of the moving groove, and the other end of the return spring is fixedly connected to one end of the pressure plate.

[0013] A further improvement of this utility model is that the right end of the sleeve is fixedly connected to the outside of the left end of the filter pipe near the positioning hole.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. This utility model provides an air filtration device for use in an oxygen generation system. It employs a combination of a filter pipe, an air filter component, and an installation assembly. A fixing frame is inserted into the filter pipe along the installation port, while sliding plates at both ends slide along positioning grooves, thus positioning the fixing frame and the filter pipe. The installation assembly then fixes the positioning plate to the outside of the filter pipe, thereby securing the fixing frame inside the filter pipe. This solves the problem that existing air filter components experience a gradual decrease in filtration efficiency under prolonged and high-load operation, resulting in insufficient filtration of airborne impurities and cumbersome filter replacement, which affects the device's performance. This invention provides a convenient way to replace the air filter component.

[0016] 2. This utility model provides an air filtration device for use in an oxygen generation system. It employs a combination of a filter pipe, an air filter component, and a pop-out assembly. During installation of the air filter component, the sealing strip in the air filter component is pressed into the sealing groove, ensuring a tight seal between the positioning plate and the filter pipe. Simultaneously, the insert in the air filter component is inserted into the pop-out assembly, compressing the return spring within the pop-out assembly. When disassembling the air filter component, the elasticity of the return spring allows the fixing frame to pop out along the installation opening, facilitating quick removal of the air filter component. This solves the problem of unstable connection between the filter element and the insertion port at the outer end of the device during filter element replacement, which easily leads to leakage and affects the filtration effect of the device. It achieves the beneficial effect of ensuring a tight seal between the installation hole and the filter pipe, preventing gas leakage from the filter pipe. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the air filtration device of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the air filter component of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the filter pipe of this utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the air filter component of this utility model.

[0021] Figure 5 This is a three-dimensional cross-sectional view of the pop-up component of this utility model.

[0022] In the diagram: 1. Filter pipe; 101. Mounting port; 102. Positioning groove; 103. Sealing groove; 104. Positioning hole; 2. Air inlet; 3. Air outlet; 4. Mounting bracket; 5. Mounting hole; 6. Air filter component; 61. Fixing frame; 62. Positioning plate; 63. Filter element; 64. Slide plate; 65. Connecting plate; 650. Insertion hole; 66. Sealing strip; 67. Insertion post; 7. Mounting assembly; 71. Screw; 72. Nut; 8. Pop-out assembly; 81. Sleeve; 810. Moving groove; 82. Pressure plate; 83. Return spring. Detailed Implementation

[0023] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0024] like Figure 1 As shown, this utility model provides an air filtration device for use in an oxygen generation system, including a filter pipe 1, an air inlet 2, and an air outlet 3. One end of the air inlet 2 is fixedly connected to the front end of the filter pipe 1, and one end of the air outlet 3 is fixedly connected to the rear end of the filter pipe 1. Mounting brackets 4 are fixedly connected to the outer walls of the air inlets of the air inlet 2 and the air outlet 3. Several mounting holes 5 are equidistantly arranged inside the two mounting brackets 4. Several air filter components 6 are equidistantly arranged on the right end of the filter pipe 1. Mounting components 7 are respectively arranged on the front and rear sides of the right end of the filter pipe 1 near the air filter components 6. Pop-out components 8 are arranged on the upper and lower sides of the left end of the filter pipe 1 near the air filter components 6. The left side of the outer wall of the air filter component 6 extends into the interior of the pop-out components 8.

[0025] The system includes a filter pipe 1, an air inlet 2, an air outlet 3, a mounting bracket 4, a mounting hole 5, an air filter component 6, a mounting assembly 7, and a pop-out assembly 8. The filter pipe 1, air filter component 6, and mounting assembly 7 work together to facilitate the installation and removal of the air filter component 6. The pop-out assembly 8 allows the air filter component 6 to be ejected from the filter pipe 1 during disassembly, further facilitating its removal.

[0026] like Figure 2As shown, this utility model provides a technical solution for an air filtration device applied in an oxygen generation system: the air filtration component 6 includes a fixed frame 61, a positioning plate 62, a filter element 63, two sliding plates 64, two connecting plates 65, a sealing strip 66, and two inserts 67. One end of the positioning plate 62 is fixedly connected to the right end of the fixed frame 61, the outer wall of the filter element 63 is fixedly connected to the inner wall of the fixed frame 61, and one end of each of the two sliding plates 64 is fixedly connected to the upper and lower ends of the outer wall of the fixed frame 61, respectively. The sliding plates 64 are provided to position the fixed frame 61 during installation and prevent insertion errors. To prevent misalignment, one end of each of the two connecting plates 65 is fixedly connected to the upper and lower sides of the front and rear ends of the positioning plate 62, respectively. The middle of each of the two connecting plates 65 is provided with a through-hole 650. One end of the sealing strip 66 is fixedly connected to the outer side of the left end of the positioning plate 62 near the slide plate 64. One end of each of the two inserts 67 is fixedly connected to the upper and lower sides of the left end of the fixing frame 61, respectively. The materials of the multiple filter elements 63 include glass fiber filter material, activated carbon filter material and HEPA filter element. The filter elements 63 are made of different materials and can filter impurities in the air in sequence.

[0027] like Figure 3-4 As shown, this utility model provides a technical solution for an air filtration device applied in an oxygen generation system: The right end of the filter pipe 1 has equidistantly arranged mounting ports 101 that are compatible with the fixed frame 61 and communicate with both the inside and outside; the upper and lower sides of the inner wall of the filter pipe 1 have positioning grooves 102 that are compatible with the sliding plate 64 and communicate with the mounting ports 101; the outer wall of the right end of the filter pipe 1 near the mounting port 101 has a sealing groove 103 that is compatible with the sealing strip 66; the upper and lower sides of the left end of the filter pipe 1 have positioning holes 104 that are compatible with the insertion post 67 and communicate with both the inside and outside; the outer wall of the fixed frame 61 passes through the mounting port 101 and is set inside the filter pipe 1; the outer wall of the sliding plate 64 is slidably connected to the inner wall of the positioning groove 102; the fixed frame 61 is inserted into the mounting port 101 through the sliding plates 64 at both ends along the positioning groove 102. Inside the filter pipe 1, a filter element 63 is used to filter the air transported inside the filter pipe 1. The outer wall of the sealing strip 66 is engaged with the inner wall of the sealing groove 103. The outer part of the sealing strip 66 is squeezed into the sealing groove 103 to increase the sealing between the installation port 101 and the positioning plate 62. The outer wall of the insertion post 67 is inserted into the inside of the positioning hole 104. The insertion post 67 is inserted out of the positioning hole 104, which can further improve the stability of the fixed frame 61 installation. The installation component 7 includes a screw 71 and a nut 72. One end of the screw 71 is fixedly connected to the outer side of the left end of the filter pipe 1 near the sealing groove 103. The outer wall of the screw 71 passes through the insertion hole 650 and is threaded into the inside of the nut 72. The screw 71 passes through the insertion hole 650 and is screwed in and fixed by the nut 72, thereby making the positioning plate 62 contact and adhere to the outer surface of the filter pipe 1.

[0028] like Figure 5As shown, this utility model provides a technical solution for an air filtration device applied in an oxygen generation system: the pop-out component 8 includes a sleeve 81, a pressure plate 82, and a return spring 83. The inner wall of the sleeve 81 is provided with a moving groove 810. The outer wall of the pressure plate 82 is slidably connected to the inner wall of the moving groove 810. The sleeve 81 slides along the moving groove 810, which limits the movement trajectory of the sleeve 81. The return spring 83 is disposed inside the moving groove 810. One end of the return spring 83 is fixedly connected to one end of the inner wall of the moving groove 810, and the other end of the return spring 83 is fixedly connected to one end of the pressure plate 82. The right end of the sleeve 81 is fixedly connected to the outer side of the left end of the filter pipe 1 near the positioning hole 104. The insert 67 passes through the positioning hole 104 and presses the pressure plate 82, causing the return spring 83 to be deformed by the force. When the air filtration component 6 is disassembled, as the force of the insert 67 on the pressure plate 82 disappears, the elasticity of the return spring 83 can pop the fixed frame 61 out along the mounting opening 101.

[0029] The working principle of this air filtration device used in oxygen production systems will be explained in detail below.

[0030] like Figure 1-5 As shown, this device is used in an oxygen generation system to filter dust particles and odors in the air. First, filter cartridges 63, containing glass fiber filter media, activated carbon filter media, and HEPA filter material, are inserted into the filter pipe 1 through the mounting port 101 via the fixing frame 61. The sliding plates 64 at both ends of the fixing frame 61 slide along the positioning grooves 102, limiting the movement trajectory of the fixing frame 61. This allows the connecting plates 65 on both sides to be inserted into the screws 71 on both sides through the insertion holes 650, and drives the insertion post 67 to be inserted into the sleeve 81 through the positioning hole 104. Then, the nut 72 is used to rotate on the screw 71, pushing the positioning plate 62 to the outside of the filter pipe 1. The surface contact causes the sealing strip 66 to be pressed and adhered to the sealing groove 103, increasing the sealing between the installation port 101 and the positioning plate 62. At the same time, it further drives the insertion post 67 to press the return spring 83 through the pressure plate 82, so that the air filter component 6 is installed into the filter pipe 1. The mounting brackets 4 at both ends of the filter pipe 1 are connected to the ports in the oxygen generator with fixing bolts. Air enters the filter pipe 1 through the air inlet 2, and then filters the dust particles and odors in the air through the filter element 63. The purified air is then discharged from the air outlet 3. After a certain period of use, the air filter component 6 can be removed from the filter pipe 1 and replaced.

[0031] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An air filtering device applied to an oxygen generating system, comprising a filtering pipeline (1), an air inlet pipe (2) and an air outlet pipe (3), characterized in that: One end of the air inlet pipe (2) is fixedly connected to the front end of the filter pipe (1), one end of the air outlet pipe (3) is fixedly connected to the rear end of the filter pipe (1), the outer wall of the air inlet pipe (2) and the air outlet pipe (3) is fixedly connected with the mounting bracket (4), a plurality of front and rear through mounting holes (5) are arranged in the mounting bracket (4), a plurality of air filtering components (6) are arranged on the right end of the filter pipe (1), mounting assemblies (7) are arranged on the front and rear sides of the air filtering component (6) on the right end of the filter pipe (1), and the left side of the air filtering component (6) is arranged on the upper and lower sides of the filter pipe (1).

2. The air filter device for use in an oxygen generating system according to claim 1, characterized in that: The air filtering component (6) comprises a fixed frame (61), a positioning plate (62), a filter core (63), two sliding plates (64), two connecting plates (65), a sealing strip (66) and two insertion columns (67), one end of the positioning plate (62) is fixedly connected to the right end of the fixed frame (61), the outer wall of the filter core (63) is fixedly connected to the inner wall of the fixed frame (61), one end of each of the two sliding plates (64) is fixedly connected to the upper and lower ends of the outer wall of the fixed frame (61), one end of each of the two connecting plates (65) is fixedly connected to the upper and lower sides of the front and rear ends of the positioning plate (62), the middle part of each of the two connecting plates (65) is provided with a left and right through insertion hole (650), one end of the sealing strip (66) is fixedly connected to the outer side of the left end of the positioning plate (62) close to the sliding plate (64), and one end of each of the two insertion columns (67) is fixedly connected to the upper and lower sides of the left end of the fixed frame (61).

3. The air filter device for use in an oxygen generating system according to claim 2, wherein: The materials of the plurality of filter cores (63) comprise glass fiber filter material, activated carbon filter material and HEPA filter core.

4. The air filter device for use in an oxygen generating system of claim 1, wherein: The right end of the filter pipe (1) is provided with a mounting port (101) which is matched with the fixed frame (61) and is in communication with the inside and outside, the upper and lower sides of the inner wall of the filter pipe (1) are provided with positioning grooves (102) which are matched with the sliding plates (64) and are in communication with the mounting port (101), the outer wall of the right end of the filter pipe (1) close to the mounting port (101) is provided with a sealing groove (103) which is matched with the sealing strip (66), and the upper and lower sides of the left end of the filter pipe (1) are respectively provided with positioning holes (104) which are matched with the insertion columns (67) and are in communication with the inside and outside.

5. The air filter device for use in an oxygen generating system according to claim 4, wherein: The outer wall of the fixed frame (61) is arranged in the inside of the filter pipe (1) through the mounting port (101), the outer wall of the sliding plate (64) is in sliding connection with the inner wall of the positioning groove (102), the outer wall of the sealing strip (66) is in engagement with the inner wall of the sealing groove (103), the outer wall of the insertion column (67) is in insertion connection with the inside of the positioning hole (104), and the mounting assembly (7) comprises a screw rod (71) and a nut (72), one end of the screw rod (71) is fixedly connected to the outer side of the left end of the filter pipe (1) close to the sealing groove (103).

6. The air filter device for use in an oxygen generating system according to claim 5, wherein: The outer wall of the screw rod (71) is connected with the inner thread of the nut (72) through the insertion hole (650).

7. The air filter device for use in an oxygen generating system of claim 1, wherein: The ejection assembly (8) comprises a sleeve (81), a pressing disc (82) and a reset spring (83), the inner wall of the sleeve (81) is provided with a moving groove (810), the outer wall of the pressing disc (82) is in sliding connection with the inner wall of the moving groove (810), the reset spring (83) is arranged in the interior of the moving groove (810), one end of the reset spring (83) is fixedly connected to one end of the inner wall of the moving groove (810), and the other end of the reset spring (83) is fixedly connected to one end of the pressing disc (82).

8. The air filter device for use in an oxygen generating system according to claim 7, characterized in that: The right end of the sleeve (81) is fixedly connected to the left end of the filtering pipeline (1) close to the outer side of the positioning hole (104).

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