Air pumping and filtering integrated mechanism of oxygen generator

Abstract

The utility model discloses an air pumping and filtering integrated mechanism of an oxygen generator, which comprises a pump body and a support frame fixedly arranged on the side wall of the pump body, a motor is fixedly arranged on the side wall of the support frame, two rotating shafts are rotatably arranged in the pump body, and the output end of the motor is in transmission connection with one of the rotating shafts. When the elastic strip on the rotating disc touches the trigger rod at one end of the rotating rod, the trigger rod can be rotated within a small range, in the rotation, the scraping roller can scrape off dust on the filter screen, when the elastic strip rotates to a proper position, the elastic strip breaks away from the trigger rod, and when the trigger rod loses force of the elastic strip, the elastic strip stops rotating. And under the action of the elastic rotating assembly, the rotating rod can be reset, so that the scraping roller is reset to the original position, and the cleaning operation is repeated after the elastic strip on the rotating disc touches the trigger rod next time, so that dust on the filter screen can be intermittently and automatically cleaned, and the cleaning efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen concentrators, in particular to an air pump-filter integrated mechanism of an oxygen concentrator. Background Art

[0002] Oxygen concentrator is a device that uses air separation technology to produce oxygen. Its working principle is mainly to separate nitrogen and other impurities in the air through steps such as compressed air, condensation separation, and adsorption separation, so as to obtain high-concentration pure oxygen. Oxygen concentrators are widely used in industrial fields such as metallurgy, chemical industry, petroleum, and national defense. They also play an important role in medical and home health care. After years of technological development, oxygen concentrators have become efficient, safe, and easy to operate.

[0003] The oxygen generator needs to be filtered multiple times during the oxygen production process. The first is the preliminary filtration, which is mainly to remove large particles of impurities in the air to ensure the quality of the air entering the oxygen production system. The subsequent deep filtration uses molecular sieve adsorption technology to further separate nitrogen and other components in the air through the selective adsorption of molecular sieves, thereby obtaining pure oxygen. This series of filtration steps ensures that the oxygen generator can efficiently and stably produce high-quality oxygen.

[0004] Patent document CN214715157U discloses an air filter structure for an oxygen concentrator, including a base, a first cylinder fixedly connected to the top of the base, a second cylinder threadedly installed inside the first cylinder, a filter assembly fixedly installed inside the second cylinder by bolts, a fixing plate fixedly connected to one side of the second cylinder, a limit block fixedly connected to the inner wall of the first cylinder, the second cylinder abuts against the limit block, and a ventilation pipe fixedly connected to one side of the first cylinder. In this solution, the first cylinder is connected to the air inlet end of the oxygen concentrator through the ventilation pipe, and the second cylinder is threadedly installed in the first cylinder by screwing the fixing plate. After being filtered by the filter assembly, the air enters the oxygen concentrator from the air inlet end of the oxygen concentrator through the ventilation pipe. After oxygen production is completed, the fixing plate is screwed again to remove the second cylinder from the first cylinder, and then the filter assembly is removed from the second cylinder, thereby realizing quick installation and disassembly of the filter assembly and facilitating cleaning and replacement of the filter assembly.

[0005] As in the prior art of the above-mentioned patent, the above-mentioned device acts as a barrier for preliminary filtering of air impurities. A large amount of impurities will continue to accumulate on the filter. In order to ensure smooth air circulation, the filter needs to be cleaned regularly. However, if it is not cleaned in time, the filter is prone to blockage, which in turn affects the normal air entry. However, the cleaning process of the above-mentioned device is relatively cumbersome. The outside of the filter must be disassembled each time, and the device cannot be used normally during cleaning. After cleaning, the filter needs to be reinstalled to ensure that the device resumes normal operation. Utility Model Content

[0006] The utility model aims to provide an air pump-filter integrated mechanism for an oxygen concentrator to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an air pump-filter integrated mechanism of an oxygen concentrator, comprising a pump body and a support frame fixedly installed on the side wall of the pump body, a motor fixedly installed on the side wall of the support frame, two rotating shafts are rotatably installed inside the pump body, the output end of the motor is transmission-connected with one of the rotating shafts, impellers are fixedly installed on the two rotating shafts, the two impellers are embedded with each other, a first gear is fixedly installed on one end of the two rotating shafts, the two first gears are meshed with each other, an air intake window is fixedly installed on the top of the pump body, a filter screen is arranged on the air intake window, and the air intake window rotates inside The swivel chair operatively connects the two wheels with the drive gear of the drive gear, and the two wheels respectively connect the two wheels to the drive gear of the drive gear. The swivel chair operatively connects the two wheels to the drive gear of the drive gear. The two wheels respectively connect the two wheels to the drive gear of the drive gear.

[0008] As a further description of the above technical solution: the air suction window is set to be semi-cylindrical, and the scraper roller rotates with the rotating rod as the axis through the connecting rod and fits tightly above the filter screen.

[0009] As a further description of the above technical solution: the elastic rotation assembly includes a sleeve, the sleeve is sleeved on one end of a rotating rod, the rotating rod is rotatably connected to the sleeve, the sleeve is fixedly installed on the side wall of the pump body, a torsion spring is arranged inside the sleeve, one end of the torsion spring is fixedly connected to the sleeve, and the other end of the torsion spring is fixedly connected to the rotating rod.

[0010] As a further description of the above technical solution: the reduction gear assembly includes two connecting shafts, and the two connecting shafts are rotatably mounted on the side walls of the pump body respectively, and a third gear and a fourth gear are fixedly mounted on one end of the two connecting shafts respectively, the third gear and the fourth gear are meshed with each other, the second gear and the third gear are meshed with each other, and the rotating disk is fixedly mounted on the connecting shaft on which the fourth gear is provided.

[0011] As a further description of the above technical solution: the bottom end of the pump body is connected to and installed with an output pipe.

[0012] As a further description of the above technical solution: a one-way valve is arranged inside the output pipe.

[0013] The utility model provides an air pump-filter integrated mechanism for an oxygen concentrator. The utility model has the following beneficial effects: the pump body and the impeller are both prior art, which constitute a Roots pump, which is a device for pumping gas, the air enters from the air intake window, is filtered through the filter, and can filter most of the impurities and dust in the air, the internal shaft will drive the second gear to rotate during the rotation process, the second gear under the action of the reduction gear group, the rotating disk slowly rotates, during the rotation of the rotating disk, when the elastic strip on the rotating disk touches the trigger rod at one end of the rotating rod, the trigger rod can be rotated in a small range, during this rotation, the scraper roller can scrape the dust on the filter net, when the elastic strip rotates to a suitable position, the elastic strip breaks away from the trigger rod, when the trigger rod loses the force of the elastic strip, under the action of the elastic rotating assembly, the rotating rod can be reset, so that the scraper roller is reset to the original position, the elastic strip on the rotating disk touches the trigger rod next time, the above cleaning operation is repeated, so that the dust on the filter net can be automatically cleaned intermittently, and the cleaning efficiency of the device is increased.

[0014] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0015] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an air pump-filter integrated mechanism of an oxygen concentrator proposed by the utility model;

[0017] Figure 2 A schematic diagram of a three-dimensional structure from another viewing angle of the present invention;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure inside the pump body of the utility model;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the main structure of the utility model;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the elastic rotating assembly and the scraping roller of the utility model;

[0021] Figure 6 It is a schematic diagram of the three-dimensional exploded structure of the reduction gear assembly and the scraper roller of the utility model.

[0022] Legend:

[0023] 1. Pump body; 2. Air intake window; 3. Output pipe; 4. Filter; 5. Support frame; 6. Motor; 7. Rotating shaft; 8. Impeller; 9. First gear; 10. Second gear; 11. Third gear; 12. Fourth gear; 13. Rotating plate; 14. Elastic strip; 15. Rotating rod; 16. Connecting rod; 17. Scraper roller; 18. Trigger rod; 19. Connecting shaft; 20. Torsion spring; 21. Sleeve; 22. One-way valve. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-6, an air pump-filter integrated mechanism of an oxygen concentrator, comprising a pump body 1 and a support frame 5 fixedly mounted on the side wall of the pump body 1, a motor 6 fixedly mounted on the side wall of the support frame 5, two rotating shafts 7 are rotatably mounted inside the pump body 1, the output end of the motor 6 is transmission-connected to one of the rotating shafts 7, impellers 8 are fixedly mounted on the two rotating shafts 7, the two impellers 8 are interlocked, one end of the two rotating shafts 7 is fixedly mounted with a first gear 9, the two first gears 9 are meshed with each other, an air intake window 2 is fixedly mounted on the top of the pump body 1, a filter screen 4 is arranged on the air intake window 2, and a filter screen 4 is arranged inside the air intake window 2 The part is rotatably connected with a rotating rod 15, and the rotating rod 15 passes through the side walls on both sides of the air suction window 2. One end of the rotating rod 15 is fixedly connected with a connecting rod 16, and the other end of the rotating rod 15 is provided with an elastic rotating component. A scraping roller 17 is fixedly installed at one end of the connecting rod 16, and the scraping roller 17 is rotatably connected to the rotating rod 15 through the connecting rod 16 and is close to the side wall of the filter screen 4. A second gear 10 is fixedly installed at one end of one of the rotating shafts 7, and a trigger rod 18 is fixedly connected to one end of the scraping roller 17. A rotating disk 13 is provided below the trigger rod 18, and the edge of the rotating disk 13 is fixedly installed Two elastic strips 14 are installed, and the two elastic strips 14 are arranged opposite to each other. A reduction gear assembly is arranged between the rotating disk 13 and the second gear 10; the pump body 1 and the impeller 8 are both prior art, which constitute a Roots pump. The Roots pump is a device for pumping gas. The air enters from the air intake window 2 and is filtered through the filter 4, which can filter most of the impurities and dust in the air. During the rotation of the internal shaft 7, it will drive the second gear 10 to rotate. Under the action of the reduction gear set, the second gear 10 makes the rotating disk 13 rotate slowly. During the rotation of the rotating disk 13, the elastic strip 14 on the rotating disk 13 touches When the trigger rod 18 at one end of the rotating rod 15 is rotated, the trigger rod 18 can be rotated within a small range. During this rotation, the scraper roller 17 can scrape the dust on the filter 4. When the elastic strip 14 is rotated to a suitable position, the elastic strip 14 breaks free from the trigger rod 18. When the trigger rod 18 loses the force of the elastic strip 14, the rotating rod 15 can be reset under the action of the elastic rotating component, so that the scraper roller 17 is reset to its original position. When the elastic strip 14 on the rotating disk 13 touches the trigger rod 18 next time, the above cleaning operation is repeated, so that the dust on the filter 4 can be automatically cleaned intermittently, thereby increasing the cleaning efficiency of the device.

[0026] As the preferred technical solution of this embodiment, the air intake window 2 is set to a semi-cylindrical shape, and the scraper roller 17 rotates with the rotating rod 15 as the axis through the connecting rod 16 and fits tightly above the filter 4; the air intake window 2 is set to a semi-cylindrical shape, which can make it more convenient for the scraper roller 17 to scrape dust on the surface of the filter 4.

[0027] As a preferred technical solution of this embodiment, the elastic rotation assembly includes a sleeve 21, which is sleeved on one end of the rotating rod 15, and the rotating rod 15 is rotatably connected to the sleeve 21. The sleeve 21 is fixedly installed on the side wall of the pump body 1, and a torsion spring 20 is arranged inside the sleeve 21. One end of the torsion spring 20 is fixedly connected to the sleeve 21, and the other end of the torsion spring 20 is fixedly connected to the rotating rod 15; the function of the torsion spring 20 is to maintain the stability of the original state of the rotating rod 15, and secondly to reset the rotating rod 15 after rotation.

[0028] As a preferred technical solution of this embodiment, the reduction gear assembly includes two connecting shafts 19, and the two connecting shafts 19 are rotatably mounted on the side walls of the pump body 1 respectively, and a third gear 11 and a fourth gear 12 are fixedly mounted on one end of the two connecting shafts 19 respectively, and the third gear 11 and the fourth gear 12 are meshed with each other, and the second gear 10 and the third gear 11 are meshed with each other, and the rotating disk 13 is fixedly mounted on the connecting shaft 19 provided with the fourth gear 12; the second gear 10 rotates, driving the third gear 11 to rotate, the third gear 11 drives the fourth gear 12 to rotate, and the fourth gear 12 drives the rotating disk 13 to rotate, thereby realizing multi-stage gear deceleration, so that the rotating disk 13 does not rotate so fast.

[0029] As a preferred technical solution of this embodiment, the bottom end of the pump body 1 is connected to an output pipe 3; the output pipe 3 can pump the filtered air into the interior of the oxygen generator.

[0030] As a preferred technical solution of this embodiment, a one-way valve 22 is provided inside the output pipe 3; the one-way valve 22 can prevent the air from flowing back, so that the air after filtering can be transported in one direction.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An air pump-filter integrated mechanism of an oxygen concentrator, comprising a pump body (1) and a support frame (5) fixedly mounted on the side wall of the pump body (1), a motor (6) fixedly mounted on the side wall of the support frame (5), two rotating shafts (7) rotatably mounted inside the pump body (1), an output end of the motor (6) being transmission-connected to one of the rotating shafts (7), impellers (8) fixedly mounted on the two rotating shafts (7), the two impellers (8) being interlocked, a first gear (9) fixedly mounted on one end of the two rotating shafts (7), the two first gears (9) being meshed with each other, an air intake window (2) fixedly mounted on the top of the pump body (1), characterized in that: The air intake window (2) is provided with a filter screen (4), the air intake window (2) is rotatably connected to a rotating rod (15) inside, the rotating rod (15) passes through the side walls of both sides of the air intake window (2), one end of the rotating rod (15) is fixedly connected to a connecting rod (16), the other end of the rotating rod (15) is provided with an elastic rotating component, one end of the connecting rod (16) is fixedly installed with a scraper roller (17), the scraper roller (17) is connected to the rotating rod (16) through the connecting rod (16). 5) is rotatably connected and closely attached to the side wall of the filter screen (4), wherein a second gear (10) is fixedly mounted on one end of one of the rotating shafts (7), a trigger rod (18) is fixedly connected to one end of the scraper roller (17), a rotating disk (13) is arranged below the trigger rod (18), two elastic strips (14) are fixedly mounted on the edge of the rotating disk (13), the two elastic strips (14) are arranged opposite to each other, and a reduction gear assembly is arranged between the rotating disk (13) and the second gear (10).

2. The air pump-filter integrated mechanism of an oxygen concentrator according to claim 1, characterized in that: The air suction window (2) is configured as a semi-cylindrical shape, and the scraper roller (17) is rotated by means of a connecting rod (16) with the rotating rod (15) as an axis and is closely fitted above the filter screen (4).

3. The air pump-filter integrated mechanism of an oxygen concentrator according to claim 1, characterized in that: The elastic rotating assembly comprises a sleeve (21), the sleeve (21) is sleeved on one end of a rotating rod (15), the rotating rod (15) is rotatably connected to the sleeve (21), the sleeve (21) is fixedly mounted on the side wall of the pump body (1), a torsion spring (20) is arranged inside the sleeve (21), one end of the torsion spring (20) is fixedly connected to the sleeve (21), and the other end of the torsion spring (20) is fixedly connected to the rotating rod (15).

4. The air pump-filter integrated mechanism of an oxygen concentrator according to claim 1, characterized in that: The reduction gear assembly comprises two connecting shafts (19), the two connecting shafts (19) are rotatably mounted on the side walls of the pump body (1), a third gear (11) and a fourth gear (12) are fixedly mounted on one end of the two connecting shafts (19), the third gear (11) and the fourth gear (12) are meshed with each other, the second gear (10) and the third gear (11) are meshed with each other, and the rotating disk (13) is fixedly mounted on the connecting shaft (19) on which the fourth gear (12) is arranged.

5. The air pump-filter integrated mechanism of an oxygen concentrator according to claim 1, characterized in that: The bottom end of the pump body (1) is connected to an output pipe (3).

6. The air pump-filter integrated mechanism of an oxygen concentrator according to claim 5, characterized in that: A one-way valve (22) is arranged inside the output pipe (3).

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