Oxygen generator filter core replacement structure

Abstract

This utility model discloses an oxygen concentrator filter replacement structure, including a bottom cover, a ventilation mesh plate fixedly connected to the center of the bottom cover, a protective cylinder on the top of the bottom cover, a filter body inside the protective cylinder, a top cover threadedly connected to the top of the protective cylinder, a connecting pipe fixedly connected to the center of the top cover, and mounting grooves fixedly connected to both ends of the bottom cover. By pressing a button, the telescopic column in the mounting groove retracts, and the magnetic piece and locking pin move towards the bottom of the slot, causing the locking pin to disengage from the locking hole, separating the bottom cover from the protective cylinder. The filter body can then be removed from the bottom cover, and after replacing it with a new filter body, the magnetic piece is inserted into the slot. Using the telescopic column, and the repulsive force between the magnetic ring and the magnetic piece, the locking pin can be locked into the locking hole, thus completing the installation between the bottom cover and the protective cylinder. This device allows for quick disassembly and assembly when replacing the filter body, thereby improving the efficiency of filter replacement.

Description

Technical Field

[0001] This utility model belongs to the field of filter replacement technology, specifically an oxygen concentrator filter replacement structure. Background Technology

[0002] An oxygen concentrator is a machine that produces oxygen. Its principle is based on air separation technology. First, air is compressed at high density. Then, taking advantage of the different condensation points of the air components, gas-liquid separation occurs at a specific temperature. Finally, distillation separates the air into oxygen and nitrogen. Because it is primarily used for oxygen production, it is commonly called an oxygen concentrator. Due to the wide range of uses for oxygen and nitrogen, oxygen concentrators are widely used in the national economy, particularly in industries such as metallurgy, chemical engineering, petroleum, and defense. Oxygen concentrators utilize the adsorption properties of molecular sieves, employing physical principles and a high-displacement oil-free compressor to separate nitrogen and oxygen from the air, ultimately producing a high concentration of oxygen. This type of oxygen concentrator produces oxygen rapidly and at high concentrations, making it suitable for oxygen therapy and health maintenance for various groups. The filter element is a crucial component inside the oxygen concentrator, responsible for filtering larger particles or dust from the air. During long-term use, the oxygen concentrator filter element needs to be replaced. In the prior art, Chinese patent CN222368469U discloses an oil-absorbing filter element, relating to the field of filtration technology. This utility model includes an upper end cover, filter media, a lower end cover, a mounting block, and a frame. The upper and lower end covers are threadedly connected by the frame, and the frame is fitted with filter media and placed between the upper and lower end covers. The mounting block is located below the lower end cover. An internal threaded ring is fixed to the bottom surface of the lower end cover, and a protrusion is fixed to the upper end surface of the mounting block. A threaded groove is formed on the upper end surface of the mounting block outside the protrusion. The lower end cover is connected to the mounting block by screwing the internal threaded ring into the threaded groove. A mounting ring is fixed to the lower part of the outer periphery of the mounting block, and mounting holes arranged in a ring array are formed within the mounting ring.

[0003] However, the filter elements provided in the above technical solutions still have many drawbacks in actual use. For example, the filter elements are installed and fixed to the equipment by means of bolts and nuts. When replacing the filter elements, multiple bolts need to be removed manually, which results in low efficiency and poor practicality of filter element replacement. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To address the problem mentioned in the background art that filter elements are installed and fixed to equipment using bolts and nuts, requiring manual removal of multiple bolts for replacement, resulting in low efficiency and poor practicality, this utility model adopts the following technical solution.

[0006] An oxygen concentrator filter replacement structure includes a bottom cover, a ventilation mesh plate fixedly connected to the center of the bottom cover, a protective cylinder on the top of the bottom cover, a filter body inside the protective cylinder, a top cover threadedly connected to the top of the protective cylinder, a connecting pipe fixedly connected to the center of the top cover, mounting grooves fixedly connected to both ends of the bottom cover, a magnetic ring fixedly connected inside the mounting groove, a telescopic column at the center of the magnetic ring, the telescopic column being fixedly connected to the mounting groove, a magnetic piece fixedly connected to the top of the telescopic column, a slot inserted into one side of the magnetic piece, and the slot being fixedly connected to the protective cylinder.

[0007] Preferably, the slot has a locking hole on its outer side, and the end of the magnet is fixedly connected to a locking post. The outer diameter of the locking post matches the inner diameter of the locking hole, and the opposite surfaces of the magnet and the magnet ring have the same polarity.

[0008] Preferably, a button is fixedly connected to the outer side of the magnet, the two sides of the magnet are in contact with the inner wall of the mounting groove, the mounting groove is symmetrical about the vertical center line of the bottom cover, and the position of the mounting groove corresponds to the position of the slot.

[0009] Preferably, a positioning rod is fixedly connected to the center of the bottom cover, the filter element body and the positioning rod are sleeved together, and the outer side of the filter element body matches the inner side of the protective cylinder.

[0010] Preferably, a plurality of telescopic rods are fixedly connected to the top of the top cover, and the ends of the plurality of telescopic rods are fixedly connected to the same protective ring. A spring is sleeved on the outside of the telescopic rod, and the central axis of the spring coincides with the central axis of the telescopic rod. The plurality of telescopic rods are evenly distributed in a ring about the vertical center line of the top cover.

[0011] Preferably, the central axis of the protective cylinder coincides with the central axis of the top cover, the inner diameter of the protective ring matches the outer diameter of the connecting pipe, and the central axis of the connecting pipe coincides with the central axis of the protective ring.

[0012] Preferably, the outer side of the protective cylinder is provided with multiple reinforcing strips, which are evenly distributed in a ring about the central axis of the protective cylinder, and the reinforcing strips and the protective cylinder form an integrated structure. Beneficial effects

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention allows for quick assembly and disassembly of the filter element by pressing a button. The telescopic column in the mounting slot retracts, causing the magnetic piece and locking pin to move towards the bottom of the slot. This disengages the locking pin from the locking hole, allowing the bottom cover and protective cylinder to be separated. The filter element body can then be removed from the bottom cover and replaced with a new one. The magnetic piece is then inserted into the slot. Utilizing the telescopic column and the repulsive force between the magnetic ring and the magnetic piece, the locking pin is secured in the locking hole, thus completing the installation of the bottom cover and protective cylinder. This device enables rapid assembly and disassembly when replacing the filter element body, thereby improving the efficiency of filter element replacement. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the filter element body of this utility model; Figure 4 This is a three-dimensional structural diagram of the bottom cover of this utility model; Figure 5 This is a three-dimensional structural diagram of the protective cylinder of this utility model.

[0015] The correspondence between the labels and component names in the attached figures is as follows: 1. Bottom cover; 2. Ventilation mesh plate; 3. Protective cylinder; 4. Filter element body; 5. Top cover; 6. Connecting pipe; 7. Mounting groove; 8. Magnetic ring; 9. Telescopic column; 10. Magnetic piece; 11. Slot; 12. Locking hole; 13. Locking post; 14. Button; 15. Positioning rod; 16. Telescopic rod; 17. Protective ring; 18. Spring; 19. Reinforcing strip. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0019] Please see Figure 1-5 This utility model provides an embodiment of an oxygen concentrator filter replacement structure, including a bottom cover 1 and a top cover 5. A connecting pipe 6 is fixedly connected to the center of the top cover 5, and multiple telescopic rods 16 are fixedly connected to the top of the top cover 5. The ends of the multiple telescopic rods 16 are fixedly connected to the same protective ring 17. A spring 18 is sleeved on the outside of the telescopic rods 16, and the central axis of the spring 18 coincides with the central axis of the telescopic rod 16. The multiple telescopic rods 16 are evenly distributed in a ring about the vertical center line of the top cover 5. The central axis of the protective cylinder 3 coincides with the central axis of the top cover 5. The inner diameter of the protective ring 17 matches the outer diameter of the connecting pipe 6, and the central axis of the connecting pipe 6 coincides with the central axis of the protective ring 17. The connecting pipe 6 can connect this device to the air inlet pipe of the oxygen concentrator, completing the installation between the device and the oxygen concentrator. Utilizing the elasticity of the spring 18, in conjunction with the use of the telescopic rods 16, the protective ring 17 can move towards the opening of the connecting pipe 6, which facilitates the protection of the connection point of the connecting pipe 6 and ensures the stability of the connection of this device.

[0020] In this embodiment, a ventilation mesh plate 2 is fixedly connected to the center of the bottom cover 1, and a protective cylinder 3 is provided on the top of the bottom cover 1. Multiple reinforcing strips 19 are provided on the outer side of the protective cylinder 3, and these reinforcing strips 19 are evenly distributed in a ring around the central axis of the protective cylinder 3. The reinforcing strips 19 and the protective cylinder 3 form an integrated structure. A filter element body 4 is provided inside the protective cylinder 3, and a top cover 5 is threadedly connected to the top of the protective cylinder 3. A positioning rod 15 is fixedly connected to the center of the bottom cover 1. The filter element body 4 and the positioning rod 15 are sleeved together, and the outer side of the filter element body 4 matches the inner side of the protective cylinder 3. Through the use of the top cover 5 and the bottom cover 1, in conjunction with the protective cylinder 3, the filter element body 4 can be protected. The reinforcing strips 19 enhance the strength of the protective cylinder 3, making it less prone to deformation. The ventilation mesh plate 2 allows outside air to enter the device. The filter element body 4 filters dust entering the hollow part of the device. The positioning rod 15 facilitates the installation and positioning of the filter element body 4. In this embodiment, mounting grooves 7 are fixedly connected to both ends of the bottom cover 1. A magnetic ring 8 is fixedly connected inside the mounting groove 7. A telescopic post 9 is provided at the center of the magnetic ring 8. The telescopic post 9 is fixedly connected to the mounting groove 7. A magnetic piece 10 is fixedly connected to the top of the telescopic post 9. A slot 11 is inserted into one side of the magnetic piece 10. The slot 11 is fixedly connected to the protective cylinder 3. A locking hole 12 is opened on the outside of the slot 11. A locking post 13 is fixedly connected to the end of the magnetic piece 10. The outer diameter of the locking post 13 matches the inner diameter of the locking hole 12. The opposite surfaces of the magnetic piece 10 and the magnetic ring 8 have the same polarity. A button 14 is fixedly connected to the outside of the magnetic piece 10. The two sides of the magnetic piece 10 are in contact with the inner wall of the mounting groove 7. 7. Symmetrical about the vertical center line of the bottom cover 1, the position of the mounting groove 7 corresponds to the position of the slot 11. By pressing the button 14, the telescopic column 9 in the mounting groove 7 retracts, and the magnetic piece 10 and the locking post 13 move towards the bottom of the slot 11, thereby causing the locking post 13 to disengage from the locking hole 12, separating the bottom cover 1 from the protective cylinder 3, removing the filter element body 4 from the bottom cover 1, and replacing it with a new filter element body 4. Then, the magnetic piece 10 is inserted into the slot 11. Using the telescopic column 9, in conjunction with the repulsive force between the magnetic ring 8 and the magnetic piece 10, the locking post 13 can be locked in the locking hole 12, thus completing the installation between the bottom cover 1 and the protective cylinder 3. This allows the device to quickly disassemble and assemble when replacing the filter element body 4, thereby improving the efficiency of filter element replacement.

[0021] Working principle: When using this device, it is first connected to the oxygen generator's air inlet pipe through the connecting pipe 6 to complete the installation of the device and the oxygen generator. Utilizing the elasticity of the spring 18 and the use of the telescopic rod 16, the protective ring 17 can move towards the opening of the connecting pipe 6, which facilitates the protection of the connection point of the connecting pipe 6 and ensures the stability of the connection of this device.

[0022] The top cover 5 and bottom cover 1, together with the protective cylinder 3, can protect the filter element body 4. The reinforcing strip 19 can enhance the strength of the protective cylinder 3, making it less prone to deformation. The ventilation mesh plate 2 allows outside air to enter the device. The filter element body 4 can filter dust entering the device. The positioning rod 15 facilitates the installation and positioning of the filter element body 4.

[0023] When replacing the filter element body 4, pressing button 14 causes the telescopic column 9 in the mounting slot 7 to retract, and the magnetic piece 10 and the locking post 13 to move towards the bottom of the slot 11, thereby causing the locking post 13 to disengage from the locking hole 12, separating the bottom cover 1 from the protective cylinder 3, removing the filter element body 4 from the bottom cover 1, and replacing it with a new filter element body 4. After that, the magnetic piece 10 is inserted into the slot 11. Using the telescopic column 9, in conjunction with the repulsive force between the magnetic ring 8 and the magnetic piece 10, the locking post 13 can be locked in the locking hole 12, thus completing the installation between the bottom cover 1 and the protective cylinder 3. This device enables quick disassembly and assembly when replacing the filter element body 4, thereby improving the efficiency of filter element replacement.

[0024] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. An oxygen generator filter replacement structure, comprising a bottom cover (1), a ventilation mesh plate (2) fixedly connected to the center of the bottom cover (1), a protective cylinder (3) provided on the top of the bottom cover (1), a filter body (4) provided inside the protective cylinder (3), a top cover (5) threadedly connected to the top of the protective cylinder (3), and a connecting pipe (6) fixedly connected to the center of the top cover (5), characterized in that: The bottom cover (1) is fixedly connected to both ends of the mounting groove (7), and a magnetic ring (8) is fixedly connected inside the mounting groove (7). A telescopic column (9) is provided at the center of the magnetic ring (8). The telescopic column (9) is fixedly connected to the mounting groove (7). A magnetic piece (10) is fixedly connected to the top of the telescopic column (9). A slot (11) is inserted into one side of the magnetic piece (10). The slot (11) is fixedly connected to the protective cylinder (3). The slot (11) has a card hole (12) on its outer side. The end of the magnet piece (10) is fixedly connected to a card post (13). The outer diameter of the card post (13) matches the inner diameter of the card hole (12). The opposite surfaces of the magnet piece (10) and the magnet ring (8) have the same polarity.

2. The oxygen concentrator filter replacement structure according to claim 1, characterized in that: A button (14) is fixedly connected to the outer side of the magnet (10). The two sides of the magnet (10) are in contact with the inner wall of the mounting groove (7). The mounting groove (7) is symmetrical about the vertical center line of the bottom cover (1). The position of the mounting groove (7) corresponds to the position of the slot (11).

3. The oxygen concentrator filter replacement structure according to claim 2, characterized in that: A positioning rod (15) is fixedly connected to the center of the bottom cover (1). The filter element body (4) and the positioning rod (15) are sleeved together. The outer side of the filter element body (4) matches the inner side of the protective cylinder (3).

4. The oxygen concentrator filter replacement structure according to claim 3, characterized in that: The top of the cover (5) is fixedly connected to a number of telescopic rods (16), and the ends of the telescopic rods (16) are fixedly connected to the same protective ring (17). A spring (18) is sleeved on the outside of the telescopic rods (16), and the central axis of the spring (18) coincides with the central axis of the telescopic rod (16). The multiple telescopic rods (16) are evenly distributed in a ring about the vertical center line of the cover (5).

5. The oxygen concentrator filter replacement structure according to claim 4, characterized in that: The central axis of the protective cylinder (3) coincides with the central axis of the top cover (5), the inner diameter of the protective ring (17) matches the outer diameter of the connecting pipe (6), and the central axis of the connecting pipe (6) coincides with the central axis of the protective ring (17).

6. The oxygen concentrator filter replacement structure according to any one of claims 1-5, characterized in that: The outer side of the protective cylinder (3) is provided with multiple reinforcing strips (19), which are evenly distributed in a ring about the central axis of the protective cylinder (3). The reinforcing strips (19) and the protective cylinder (3) form an integrated structure.

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