Air inlet structure of oxygen generator
By designing the air intake structure of the protective cover plate and sewage discharge pipe in the oxygen generator, the problems of component replacement and liquid water entry in the prior art are solved, and convenient replacement and waterproofing effects are achieved.
Patent Information
- Application Number
- CN202421088960.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The existing oxygen generators need to remove the housing when cleaning and replacing the filter components and purification components, which are inconvenient to operate and are prone to internal damage due to the entry of liquid water.
An air intake structure including a protective cover plate, a positioning frame, a filter assembly and a purification assembly is designed to replace the filter assembly without disassembly of the housing through the passage of the groove and the sewage pipe, and to avoid liquid water entering through the negative pressure fan and exhaust port.
The ease of replacement of components and the effect of preventing liquid water from entering the interior is achieved, simplifying operation and protecting the equipment.
Smart Images
Figure CN222286750U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of air intake of oxygen generators, in particular to an air intake structure of an oxygen generator. Background Art
[0002] An oxygen concentrator is a device that assists people in breathing. Among oxygen concentrators based on different principles, the pressure swing adsorption oxygen concentrator is relatively mature. Its working principle is as follows: the compressor compresses the air and transmits the high-pressure gas produced by the compressor to the adsorption component. The molecular sieve in the adsorption component adsorbs nitrogen in the air at a higher pressure, and the unadsorbed oxygen is collected and provided to people for use. At a lower pressure, the molecular sieve can desorb and release nitrogen.
[0003] However, a filter assembly and a purification assembly are usually provided in the oxygen concentrator. When in use, air enters the oxygen concentrator through the air inlet, and then the outside air is filtered and purified by the filter assembly and the purification assembly. However, since the filter assembly and the purification assembly are mostly arranged inside the oxygen concentrator, when the filter assembly and the purification assembly need to be cleaned and replaced, the outer casing of the oxygen concentrator needs to be disassembled, which is inconvenient to operate. In addition, since air is sucked in through the air inlet, liquid water from the outside can easily enter the oxygen concentrator through the air inlet, which can easily cause damage to the driving mechanism and parts inside the oxygen concentrator.
[0004] Therefore, it is necessary to invent an air intake structure of an oxygen concentrator. Utility Model Content
[0005] The purpose of the utility model is to solve the problems raised in the above background technology.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air intake structure of an oxygen concentrator, comprising a body, a protective cover plate is installed on one side of the body, a positioning frame is installed in the middle of the side of the protective cover plate away from the body, a filter assembly is installed inside the positioning frame, fixed plates are fixedly installed on both sides of the inner cavity of the protective cover plate, and a purification assembly is installed in the middle of the fixed plate;
[0007] A through slot is provided at the upper end of one side of the protective cover away from the positioning frame, and a sewage pipe is installed at the bottom of the protective cover.
[0008] Based on the above features: when the filter assembly needs to be cleaned and replaced, the filter assembly can be pulled out of the positioning frame by manpower. When the purification assembly needs to be cleaned and replaced, only one side of the protective cover needs to be opened without removing the oxygen generator casing. At the same time, if liquid water enters through the positioning frame, the liquid water will fall to the bottom of the inner cavity of the protective cover. When the water needs to be discharged, the sealing cap can be opened to allow the liquid water to be discharged through the drain pipe to prevent liquid water from entering the inner cavity of the oxygen generator.
[0009] Preferably, an exhaust port is installed on a side of the machine body away from the protective cover plate, an air inlet is opened on a side of the machine body close to the through slot, the air inlet is aligned with the through slot, and a negative pressure fan is installed inside the air inlet.
[0010] Based on the above characteristics: After the oxygen generator is started, the negative pressure fan can be used to absorb the outside air. At this time, the outside air will be introduced into the protective cover through the positioning frame, and then the air will flow upward through the groove and the air inlet into the oxygen generator. When the oxygen production is completed, the oxygen can be discharged through the exhaust port.
[0011] Preferably, the inner cavity of the protective cover plate is a hollow structure.
[0012] Based on the above characteristics: it is convenient for air to flow in the protective cover plate, and at the same time, liquid water can be gathered at the bottom of the inner cavity of the protective cover plate.
[0013] Preferably, a limit plate is fixedly installed on the inner wall of the positioning frame, and a magnetic attraction sheet is installed on the surface of the limit plate.
[0014] Based on the above features: the limiting plate can limit the filter assembly to prevent the filter assembly from entering the inner cavity of the protective cover plate.
[0015] Preferably, the filter assembly comprises a frame and a filter screen installed in the middle of the frame, and a magnet is installed on the surface of one side of the frame.
[0016] Based on the above features: when the filter assembly is installed, the frame will use the magnet on one side to absorb the magnetic sheet on the limit plate. When the air is introduced, the filter screen in the middle of the frame can filter the air.
[0017] Preferably, the purification assembly includes a first purification box and a second purification box, the first purification box is filled with activated carbon, the second purification box is filled with charcoal, baffles are symmetrically installed on the inner walls at both ends of the first purification box and the second purification box, a metal filter is installed on one side of the baffle, and connecting sockets are provided at the four corners of the baffle and the metal filter.
[0018] Based on the above characteristics: the air flows from bottom to top through the first purification box and the second purification box. During this process, the metal filters at both ends of the first purification box and the second purification box will form a four-layer filter element to perform multiple filtrations on the air. When filtering the air, the activated carbon and charcoal are limited between the two metal filters. Finally, the air will be adsorbed and purified by the activated carbon and charcoal to avoid odor in the air as much as possible.
[0019] Preferably, both ends of the first purification box and the second purification box are open.
[0020] Based on the above features: it is convenient for air to flow from bottom to top through the first purification box and the second purification box for filtration and purification.
[0021] The beneficial effects of the utility model are:
[0022] 1. The filter assembly can perform preliminary filtration on the air, and the metal filters at both ends of the first purification box and the second purification box will form a four-layer filter element to perform multiple filtration on the air. When the filter assembly is installed, the frame will use a magnet on one side to absorb the magnetic sheet on the limit plate to prevent the filter assembly from automatically detaching from the positioning frame. When disassembling, the filter assembly can be pulled out of the positioning frame by manpower. When the first purification box and the second purification box are installed, they can be inserted into the middle of the fixed plate. When disassembling, you only need to open one side of the protective cover without removing the oxygen generator casing. It is simple and convenient.
[0023] 2. To prevent liquid water from entering the inner cavity of the oxygen concentrator, the through groove and the positioning frame are misaligned. After the oxygen concentrator is started, the negative pressure fan can be used to absorb the outside air. At this time, the outside air will be introduced into the protective cover through the positioning frame, and then the air will flow upward through the through groove and the air inlet into the oxygen concentrator, while the liquid water will fall to the bottom of the inner cavity of the protective cover. When the water needs to be discharged, the sealing cap can be opened to allow the liquid water to be discharged through the drain pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a schematic diagram of the overall structure of an air intake structure of an oxygen concentrator provided by the utility model;
[0025] Figure 2 This is a disassembled diagram of the air intake structure body and protective cover plate of an oxygen concentrator provided by the utility model;
[0026] Figure 3 This is a disassembled diagram of an air intake structure positioning frame and a filter assembly of an oxygen concentrator provided by the utility model;
[0027] Figure 4 This is a disassembled diagram of an air intake structure purification component of an oxygen concentrator provided by the utility model.
[0028] In the figure: 1. body; 11. exhaust port; 12. air inlet; 13. negative pressure fan; 2. protective cover; 21. through slot; 22. sewage pipe; 3. positioning frame; 31. limit plate; 32. magnetic sheet; 4. filter assembly; 41. frame; 42. filter screen; 43. magnet; 5. fixing plate; 6. purification assembly; 61. first purification box; 62. second purification box; 63. baffle; 64. metal filter; 65. connecting socket. DETAILED DESCRIPTION
[0029] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0030] See attached Figure 1-4 The utility model provides an air intake structure of an oxygen concentrator, comprising a body 1, a protective cover plate 2 is installed on one side of the body 1, a positioning frame 3 is installed in the middle of the side of the protective cover plate 2 away from the body 1, a filter component 4 is installed inside the positioning frame 3, and fixing plates 5 are fixedly installed on both sides of the inner cavity of the protective cover plate 2, and a purification component 6 is installed in the middle of the fixing plate 5;
[0031] A through groove 21 is formed at the upper end of the protective cover plate 2 on one side away from the positioning frame 3, and a sewage pipe 22 is installed at the bottom of the protective cover plate 2 (a sealing cap is installed at the bottom of the sewage pipe 22, and the sewage pipe 22 and the sealing cap can be detachably connected by any means such as threads, bolts, blocks, etc., which is not specifically limited in this application and can be set as needed).
[0032] When the oxygen generator is started, the outside air will be sucked in through the positioning frame 3. At this time, the filter component 4 inside the positioning frame 3 will perform preliminary filtration on the air, and then the air will be introduced into the inner cavity of the protective cover plate 2 and will be sucked into the oxygen generator through the through groove 21. In this process, the air will be subjected to multiple filtration and purification by the purification component 6 to ensure the cleanliness of the air. When the filter component 4 needs to be cleaned and replaced, the filter component 4 can be pulled out of the positioning frame 3 by manpower. When the purification component 6 needs to be cleaned and replaced, only one side of the protective cover plate 2 needs to be opened without disassembling the oxygen generator casing. At the same time, if liquid water enters through the positioning frame 3, the liquid water will fall to the bottom of the inner cavity of the protective cover plate 2. When the water needs to be discharged, the sealing cap can be opened to allow the liquid water to be discharged through the drain pipe 22 to prevent liquid water from entering the inner cavity of the oxygen generator.
[0033] Preferably, an exhaust port 11 is installed on the side of the body 1 away from the protective cover 2, and an air inlet 12 is opened on the side of the body 1 close to the through slot 21. The air inlet 12 is aligned with the through slot 21, and a negative pressure fan 13 is installed inside the air inlet 12.
[0034] The through groove 21 is misaligned with the positioning frame 3. After the oxygen generator is started, the negative pressure fan 13 can be used to absorb the outside air. At this time, the outside air will be introduced into the protective cover 2 through the positioning frame 3, and then the air will flow upward through the through groove 21 and the air inlet 12 to be introduced into the oxygen generator. When the oxygen production is completed, the oxygen can be discharged through the exhaust port 11.
[0035] Preferably, the inner cavity of the protective cover plate 2 is a hollow structure.
[0036] This facilitates the flow of air in the protective cover plate 2 and allows liquid water to gather at the bottom of the inner cavity of the protective cover plate 2 .
[0037] Preferably, a limit plate 31 is fixedly installed on the inner wall of the positioning frame 3 , and a magnetic attraction sheet 32 is installed on the surface of the limit plate 31 .
[0038] The limiting plate 31 can limit the filter assembly 4 to prevent the filter assembly 4 from entering the inner cavity of the protective cover plate 2. At the same time, the magnetic sheet 32 can adsorb and position the filter assembly 4 to prevent the filter assembly 4 from automatically detaching from the positioning frame 3.
[0039] Preferably, the filter assembly 4 includes a frame 41 and a filter screen 42 installed in the middle of the frame 41 , and a magnet 43 is installed on one side surface of the frame 41 .
[0040] When the filter assembly 4 is installed, the frame 41 will use the magnet 43 on one side to absorb the magnetic sheet 32 on the limiting plate 31. When air is introduced, the filter screen 42 in the middle of the frame 41 can filter the air.
[0041] Preferably, the purification component 6 includes a first purification box 61 and a second purification box 62, the first purification box 61 is filled with activated carbon, the second purification box 62 is filled with charcoal, baffles 63 are symmetrically installed on the inner walls at both ends of the first purification box 61 and the second purification box 62, a metal filter screen 64 is installed on one side of the baffle 63, and connecting sockets 65 are opened at the four corners of the baffle 63 and the metal filter screen 64.
[0042] The air flows from bottom to top through the first purification box 61 and the second purification box 62. During this process, the metal filter screens 64 at both ends of the first purification box 61 and the second purification box 62 will form a four-layer filter element to perform multiple filtrations on the air. The metal filter screen 64 is aligned with the sockets at the four corners of the baffle 63 through the connecting sockets 65 at the four corners, and is installed with screws to prevent the metal filter screen 64 from falling. During air filtering, the activated carbon and charcoal are limited between the two metal filter screens 64. Finally, the air will be purified by adsorption of the activated carbon and charcoal to avoid odor in the air as much as possible.
[0043] Preferably, both ends of the first purification box 61 and the second purification box 62 are open.
[0044] It is convenient for air to flow from bottom to top through the first purification box 61 and the second purification box 62 for filtration and purification.
[0045] The use process of the utility model is as follows: when the oxygen generator is started, the negative pressure fan 13 can be used to absorb the outside air, and the outside air will be introduced into the protective cover 2 through the positioning frame 3. At this time, the filter component 4 inside the positioning frame 3 will preliminarily filter the air, and then the air will flow upward through the through groove 21 and the air inlet 12 to be introduced into the oxygen generator. In this process, the air will flow from bottom to top through the first purification box 61 and the second purification box 62, and the metal filter mesh 64 at both ends of the first purification box 61 and the second purification box 62 will form a four-layer filter element to filter the air, and the activated carbon and charcoal can absorb and purify the air. If liquid water enters through the positioning frame 3, the liquid water will fall to the bottom of the inner cavity of the protective cover 2. When the water needs to be discharged, the sealing cap can be opened to allow the liquid water to be discharged through the sewage pipe 22.
[0046] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.
Claims
1. An air intake structure of an oxygen concentrator, comprising a body (1), characterized in that: A protective cover plate (2) is installed on one side of the machine body (1); a positioning frame (3) is installed in the middle of the side of the protective cover plate (2) away from the machine body (1); a filter component (4) is installed inside the positioning frame (3); fixed plates (5) are fixedly installed on both sides of the inner cavity of the protective cover plate (2); and a purification component (6) is installed in the middle of the fixed plate (5); A through groove (21) is provided at the upper end of the side of the protective cover plate (2) away from the positioning frame (3), and a sewage discharge pipe (22) is installed at the bottom of the protective cover plate (2).
2. The air intake structure of an oxygen concentrator according to claim 1, characterized in that: An exhaust port (11) is installed on a side of the machine body (1) away from the protective cover plate (2), and an air inlet (12) is opened on a side of the machine body (1) close to the through slot (21). The air inlet (12) is aligned with the through slot (21), and a negative pressure fan (13) is installed inside the air inlet (12).
3. The air intake structure of an oxygen concentrator according to claim 1, characterized in that: The inner cavity of the protective cover plate (2) is a hollow structure.
4. The air intake structure of an oxygen concentrator according to claim 1, characterized in that: A limit plate (31) is fixedly mounted on the inner wall of the positioning frame (3), and a magnetic attraction sheet (32) is mounted on the surface of the limit plate (31).
5. The air intake structure of an oxygen concentrator according to claim 1, characterized in that: The filter assembly (4) comprises a frame (41) and a filter screen (42) installed in the middle of the frame (41); a magnet (43) is installed on one side surface of the frame (41).
6. The air intake structure of an oxygen concentrator according to claim 1, characterized in that: The purification assembly (6) comprises a first purification box (61) and a second purification box (62), wherein the first purification box (61) is filled with activated carbon, and the second purification box (62) is filled with charcoal, baffles (63) are symmetrically mounted on the inner walls at both ends of the first purification box (61) and the second purification box (62), a metal filter screen (64) is mounted on one side of the baffles (63), and connection sockets (65) are provided at four corners of the baffles (63) and the metal filter screen (64).
7. The air intake structure of an oxygen concentrator according to claim 6, characterized in that: Both ends of the first purification box (61) and the second purification box (62) are open.