Efficient filtering device of oxygen generator

Abstract

The utility model relates to the field of oxygen generators, in particular to an oxygen generator efficient filtering device which comprises a filtering pipe, a sealing cover is fixed to the filtering pipe, an air outlet pipe is fixed to the sealing cover, a filtering cylinder is arranged in the filtering pipe, an air inlet pipe is further fixed to the filtering pipe, and a supporting plate is further arranged in the position, below the filtering cylinder, of the filtering pipe. A spring in a stretching state is further fixed in the filter pipe below the supporting plate, a push plate is further fixed above the supporting plate, a scraping plate matched with the filter cartridge is fixed on the push plate, a blow-off pipe with a valve is further fixed on the filter pipe below the filter cartridge, a rotating shaft is further arranged below the filter cartridge, and the rotating shaft is connected with the push plate. A plurality of cams matched with the push plate are fixed on the rotating shaft, and a plurality of fan blades are also fixed on the rotating shaft in the blow-off pipe. According to the device, the push plate can reciprocate up and down, the scraping plate reciprocates up and down along with the push plate, and impurities on the surface of the filter cartridge are scraped by clinging the scraping plate to the surface of the filter cartridge.

Description

Technical Field

[0001] The invention relates to the field of oxygen concentrators, and in particular to a high-efficiency filtering device for oxygen concentrators. Background Art

[0002] An oxygen concentrator is a type of machine that produces oxygen. Its principle is to use air separation technology. First, the air is compressed at a high density, and then the different condensation points of the various components in the air are used to separate the gas and liquid at a certain temperature, and then distilled to separate it into oxygen and nitrogen. In general, since it is mostly used to produce oxygen, people are accustomed to calling it an oxygen concentrator. Patent application number: CN202121193868.X discloses a gas filter assembly for an oxygen concentrator, including an air inlet box, a box cover and a filter frame plate, and also includes a metal filter mesh and a PP porous foam gasket. A card slot is opened on one side of the air inlet box, and a filter frame plate is inserted in the card slot. A metal filter mesh is fixedly installed in the filter frame plate by bolts, and a PP porous foam gasket is provided on one side of the filter frame plate. The outer cover of the air inlet box is provided with a box cover corresponding to the card slot. However, this type of filtering device does not have an automatic cleaning structure. After the filter mesh and PP porous foam gasket have been used for a period of time, they need to be cleaned and replaced.

[0003] The present invention is proposed in view of the deficiencies in the prior art. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a high-efficiency filtering device for an oxygen concentrator.

[0005] The present invention can be implemented by the following technical solutions:

[0006] The present invention discloses a high-efficiency filtering device for an oxygen concentrator, comprising a filter tube, a sealing cover is fixed on the filter tube, an air outlet pipe is fixed on the sealing cover, a filter cartridge is arranged in the filter tube, an air inlet pipe is also fixed on the filter tube, a support plate is also arranged in the filter tube below the filter cartridge, a spring in a stretched state is also fixed in the filter tube below the support plate, a push plate is also fixed above the support plate, a scraper matched with the filter cartridge is fixed on the push plate, a sewage pipe with a valve is also fixed on the filter tube below the filter cartridge, a rotating shaft is also arranged below the filter cartridge, a plurality of cams matched with the push plate are fixed on the rotating shaft, and a plurality of fan blades are also fixed on the rotating shaft in the sewage pipe. After external air is drawn and pressurized by the compressor, it enters the filter tube through the air inlet pipe. The gas is filtered through the filter cartridge and discharged through the air outlet pipe for use. After filtering for a period of time, the filter cartridge is covered with impurities. The valve on the drain pipe is opened and the air flow is discharged through the drain pipe. When the air flow passes through the drain pipe, the air flow and the fan blades on the rotating shaft drive the rotating shaft to rotate. Since the spring is in a stretched state and one end of the spring is fixed to the bottom of the filter tube and the other end of the spring is fixed to the support plate, the push plate can be always attached to the surface of the cam. When the rotating shaft rotates, the cam rotates with the rotating shaft, so that the push plate can be reciprocated up and down, and the scraper can be reciprocated up and down with the push plate. The scraper is close to the surface of the filter cartridge to scrape off impurities on the surface of the filter cartridge to prevent impurities from covering the filter cartridge and affecting the filtering effect.

[0007] Preferably, the scraper spiral is arranged outside the filter cartridge.

[0008] Compared with the prior art, the present invention has the following advantages:

[0009] The device can realize the up and down reciprocating movement of the push plate, and the scraper can reciprocate up and down with the push plate. The scraper can scrape away impurities on the surface of the filter cartridge by closely contacting the surface of the filter cartridge, so as to avoid impurities covering the filter cartridge and affecting the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0011] Figure 1 It is a structural schematic diagram of the present invention;

[0012] Figure 2 It is a left side view of the present invention;

[0013] Figure 3 for Figure 2 Sectional view at AA;

[0014] In the figure: 1. filter tube; 2. sealing cover; 3. air inlet pipe; 4. air outlet pipe; 5. filter cartridge; 6. sewage pipe; 7. valve; 8. support plate; 9. spring; 10. push plate; 11. scraper; 12. rotating shaft; 13. cam; 14. fan blade; DETAILED DESCRIPTION

[0015] The embodiments of the present invention are described in detail below with reference to the accompanying drawings:

[0016] Embodiment 1:

[0017] like Figures 1 to 3 As shown, the present embodiment discloses a high-efficiency filtering device for an oxygen concentrator, comprising a filter tube 1, a sealing cover 2 is fixed on the filter tube 1, an air outlet pipe 4 is fixed on the sealing cover 2, a filter cartridge 5 is arranged in the filter tube 1, an air inlet pipe 3 is also fixed on the filter tube 1, a support plate 8 is also arranged in the filter tube 1 below the filter cartridge 5, a spring 9 in a stretched state is also fixed in the filter tube 1 below the support plate 8, a push plate 10 is also fixed above the support plate 8, a scraper 11 cooperating with the filter cartridge 5 is fixed on the push plate 10, a sewage pipe 6 with a valve 7 is also fixed on the filter tube 1 below the filter cartridge 5, a rotating shaft 12 is also arranged below the filter cartridge 5, a plurality of cams 13 cooperating with the push plate 10 are fixed on the rotating shaft 12, and a plurality of fan blades 14 are also fixed on the rotating shaft 12 in the sewage pipe 6. After external air is extracted and pressurized by the compressor, it enters the filter tube 1 through the air inlet pipe 3. The gas is filtered by the filter cartridge 5 and then discharged through the air outlet pipe 4 for use. After filtering for a period of time, the filter cartridge 5 is covered with impurities. The valve 7 on the drain pipe 6 is opened, and the airflow is discharged through the drain pipe 6. When the airflow passes through the drain pipe 6, the airflow and the fan blades 14 on the rotating shaft 12 drive the rotating shaft 12 to rotate. Since the spring 9 is in a stretched state, and one end of the spring 9 is fixed to the bottom of the filter tube 1, and the other end of the spring 9 is fixed to the support plate 8, the push plate 10 can be always attached to the surface of the cam 13. When the rotating shaft 12 rotates, the cam 13 rotates with the rotating shaft 12, so that the push plate 10 can be reciprocated up and down, and the scraper 11 can be reciprocated up and down with the push plate 10. The scraper 11 is close to the surface of the filter cartridge 5 to scrape off the impurities on the surface of the filter cartridge 5, so as to avoid impurities covering the filter cartridge 5 and affecting the filtering effect.

[0018] Embodiment 2:

[0019] This embodiment discloses a high-efficiency filtering device for an oxygen generator. Based on the structure and principle of the first embodiment, the scraper 11 of this embodiment is spirally arranged outside the filter cartridge 5 .

[0020] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be regarded as the scope of protection of the present invention.

Claims

1. A high-efficiency filtration device for an oxygen concentrator, comprising a filter tube, characterized in that: A sealing cover is fixed on the filter tube, an air outlet pipe is fixed on the sealing cover, a filter cartridge is arranged in the filter tube, an air inlet pipe is also fixed on the filter tube, a support plate is also arranged in the filter tube below the filter cartridge, a spring in a stretched state is also fixed in the filter tube below the support plate, a push plate is also fixed above the support plate, a scraper matching with the filter cartridge is fixed on the push plate, a sewage pipe with a valve is also fixed on the filter tube below the filter cartridge, a rotating shaft is also arranged below the filter cartridge, a plurality of cams matching with the push plate are fixed on the rotating shaft, and a plurality of fan blades are also fixed on the rotating shaft in the sewage pipe.

2. The high-efficiency filtration device for oxygen concentrator according to claim 1, characterized in that: The scraper spiral is arranged outside the filter cartridge.

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