Drainage device for medical molecular sieve oxygen generation equipment

Abstract

The utility model provides a drainage device for medical molecular sieve oxygen production equipment, and relates to the technical field of drainage of medical equipment, the drainage device comprises a water collecting bucket, a mounting cylinder is arranged in the middle of the upper end of the water collecting bucket, and a filter assembly is arranged in the middle of the inner side of the mounting cylinder; the filtering assembly sequentially comprises a first filtering layer, a second filtering layer and a third filtering layer from top to bottom, scraping plates are movably installed on the surfaces of the upper ends of the first filtering layer, the second filtering layer and the third filtering layer correspondingly, rotating bases are arranged at the head ends of the multiple sets of scraping plates correspondingly, and the multiple sets of rotating bases are coaxially connected through rotating shafts; the rotating shaft penetrates through the first filter layer, the second filter layer and the third filter layer. Condensate water is filtered through the filter assembly, then the condensate water is recycled through the water collecting barrel, waste of water resources is avoided, in addition, the two ends of the filter assembly can be clamped and fixed through the limiting ring and the sealing cover, and therefore convenience is provided for disassembly, assembly and cleaning of the filter assembly.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment drainage technology, specifically a drainage device for medical molecular sieve oxygen generators. Background Technology

[0002] Molecular sieve oxygen generators pressurize raw air using a compressor, then pre-treat it to remove solid impurities such as oil and dust, as well as water, and cool it to room temperature. The treated compressed air then enters an adsorption tower containing molecular sieves through an inlet valve. Nitrogen, carbon dioxide, and other impurities in the air are adsorbed, and the outflowing gas is high-purity oxygen. The condensate produced during the molecular sieve oxygen generation process needs to be discharged in a timely manner. Otherwise, the long-term accumulation of condensate inside the equipment will cause corrosion and damage to the internal parts, and will also contaminate the compressed air.

[0003] A Chinese patent with authorization announcement number (CN215403089U) discloses an automatic drainer for a medical molecular sieve oxygen generator, comprising a mounting cavity, a protective cover, a water delivery pipe, and a water storage tank. A liquid level sensor is fixedly installed on one side of the bottom of the mounting cavity of the microporous filter element. Floats are placed on both sides of the top of the inner cavity. A piston is fixedly installed inside the inner cavity via a spring body. Return springs are fixedly installed on both sides of the bottom of the piston within the inner cavity. A fixing rod is fixedly installed on the top of the return spring, extending through the inner cavity and out of the mounting cavity, and the fixing rod has a matching rubber threaded ring. The bottom of the mounting cavity is fixedly connected to the water storage tank via the water delivery pipe, and a matching solenoid valve is fixedly installed on the water delivery pipe. This utility model, through the floats, spring body, piston, and solenoid valve, enables automatic drainage and controls the drainage time during the use of the oxygen generator, improving the practicality of the drainer.

[0004] However, the filter element in this invention is not easy to clean and replace, and it is prone to clogging during long-term use, which affects the filtration effect.

[0005] To address the aforementioned issues, we propose a drainage device for medical molecular sieve oxygen generators. Utility Model Content

[0006] To address the problems in the background art, this utility model provides a drainage device for a medical molecular sieve oxygen generator.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A drainage device for a medical molecular sieve oxygen generator includes a water collection tank. An installation cylinder is located at the upper center of the water collection tank, and a filter assembly is located at the inner center of the installation cylinder. The filter assembly comprises, from top to bottom, a first filter layer, a second filter layer, and a third filter layer. Scrapers are movably mounted on the upper surfaces of the first, second, and third filter layers. Rotary seats are located at the heads of multiple sets of scrapers, and these rotating seats are coaxially connected via a rotating shaft. The rotating shaft passes through the first, second, and third filter layers, and a drive motor is located at the bottom of the rotating shaft.

[0009] The filter assembly also includes a support frame. The first filter layer, the second filter layer, and the third filter layer are installed at equal intervals in a vertical direction. The support frame is inserted into the middle of the inner side of the mounting cylinder. A sealing cover is provided on the top of the mounting cylinder, and a water inlet pipe is provided in the middle of the inner side of the sealing cover.

[0010] Preferably, multiple sets of drainage holes are provided around the bottom of the mounting cylinder, and the drainage holes are located at the bottom of the filter assembly and are distributed in an axial ring.

[0011] Preferably, the drive motor is fixedly installed at the bottom center of the mounting cylinder, and the output end of the mounting cylinder is provided with a connecting seat. The connecting seat is movably installed on the inner bottom of the mounting cylinder, and the rotating shaft is inserted into the connecting seat.

[0012] Preferably, a limiting ring is provided in the middle of the inner side of the mounting cylinder. The limiting ring is located at the bottom of the support frame, and a fixing seat is provided at the upper end of the support frame. The fixing seat and the limiting ring clamp and fix the support frame from both ends respectively.

[0013] Preferably, the fixing seat and the mounting cylinder are threaded together, and the sealing cap is installed in the middle of the inner side of the fixing seat.

[0014] Preferably, a water level monitor is installed on the inner wall of the water collection tank, and a water outlet pipe is installed on one side of the bottom of the water collection tank.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this solution, condensate is filtered by a filter assembly and then recycled through a collection tank to avoid water waste. In addition, scrapers are movably installed on the upper surfaces of the first, second, and third filter layers. Driven by a motor, the scrapers rotate to scrape away the particulate impurities filtered from the surfaces of the first, second, and third filter layers, preventing the accumulation of particulate impurities on the surfaces of the first, second, and third filter layers and thus avoiding clogging.

[0017] In this design, the limiting ring and sealing cap allow for clamping and fixing the filter assembly at both ends, thus facilitating the disassembly, assembly, and cleaning of the filter assembly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the filter assembly in this utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the filter assembly in this utility model;

[0021] Figure 4 This is a schematic diagram of the connection between the support frame and the mounting cylinder in this utility model.

[0022] In the diagram: 1. Water collection tank; 2. Mounting cylinder; 3. Support frame; 4. First filter layer; 5. Second filter layer; 6. Third filter layer; 7. Rotating seat; 8. Scraper; 9. Rotating shaft; 10. Connecting seat; 11. Drive motor; 12. Limiting ring; 13. Leakage hole; 14. Fixing seat; 15. Sealing cover; 16. Inlet pipe; 17. Water level monitor; 18. Outlet pipe. Detailed Implementation

[0023] The technical solution in this application embodiment is to solve the problems of the background technology mentioned above. The general idea is as follows: condensate is filtered by a filter assembly, and then recycled through a water collection tank 1 to avoid water waste. In addition, scrapers 8 are movably installed on the upper surfaces of the first filter layer 4, the second filter layer 5, and the third filter layer 6 to scrape off the filtered particulate impurities, preventing them from accumulating on the surfaces of the first filter layer 4, the second filter layer 5, and the third filter layer 6 and causing blockage. Furthermore, the setting of the limiting ring 12 and the sealing cover 15 can clamp and fix the filter assembly at both ends, thereby providing convenience for disassembly, assembly, and cleaning of the filter assembly.

[0024] Example 1: Refer to Figure 1 - Figure 4As shown, a drainage device for a medical molecular sieve oxygen generator according to this embodiment includes a water collection tank 1. An installation cylinder 2 is provided at the upper middle part of the water collection tank 1, and a filter assembly is provided at the inner middle part of the installation cylinder 2. The filter assembly includes a first filter layer 4, a second filter layer 5, and a third filter layer 6 from top to bottom. Scrapers 8 are movably installed on the upper surfaces of the first filter layer 4, the second filter layer 5, and the third filter layer 6. Rotating seats 7 are provided at the head ends of multiple sets of scrapers 8. Multiple sets of rotating seats 7 are coaxially connected by a rotating shaft 9. The rotating shaft 9 passes through the first filter layer 4, the second filter layer 5, and the third filter layer 6. A drive motor 11 is provided at the bottom of the rotating shaft 9. The filter assembly also includes a support frame 3. The first filter layer 4, the second filter layer 5, and the third filter layer 6 are installed at equal intervals in a vertical direction. The support frame 3 is inserted and installed in the inner middle part of the installation cylinder 2. A sealing cover 15 is provided at the top of the installation cylinder 2, and a water inlet pipe 16 is provided at the inner middle part of the sealing cover 15.

[0025] In this system, the mesh openings in the first filter layer 4, the second filter layer 5, and the third filter layer 6 gradually decrease in size and become denser, thereby achieving multi-stage filtration and separation of condensate and improving the filtration effect. Furthermore, driven by the drive motor 11, the rotating shaft 9 rotates, which in turn drives multiple sets of scrapers 8 to rotate, thus scraping away the particulate impurities filtered from the surfaces of the first filter layer 4, the second filter layer 5, and the third filter layer 6. This prevents particulate impurities from accumulating on the surfaces of the first filter layer 4, the second filter layer 5, and the third filter layer 6, thus avoiding clogging during prolonged use.

[0026] In some examples, multiple sets of drainage holes 13 are provided around the bottom of the mounting cylinder 2. The drainage holes 13 are located at the bottom of the filter assembly and are distributed in an axial ring.

[0027] In some examples, the drive motor 11 is fixedly installed at the bottom center of the mounting cylinder 2, and the output end of the mounting cylinder 2 is provided with a connecting seat 10. The connecting seat 10 is movably installed on the inner bottom of the mounting cylinder 2, and the rotating shaft 9 is inserted into the connecting seat 10, so that the connecting seat 10 and the rotating shaft 9 can be quickly disassembled and assembled.

[0028] In some examples, a limiting ring 12 is provided in the middle of the inner side of the mounting cylinder 2. The limiting ring 12 is located at the bottom of the support frame 3. A fixing seat 14 is provided at the upper end of the support frame 3. The fixing seat 14 and the limiting ring 12 clamp and fix the support frame 3 from both ends respectively. The fixing seat 14 and the mounting cylinder 2 are connected by threads. The sealing cover 15 is installed in the middle of the inner side of the fixing seat 14, thereby providing convenience for the installation and disassembly of the support frame 3.

[0029] In some examples, a water level monitor 17 is installed on the inner wall of the water collection tank 1, and a water outlet pipe 18 is installed on one side of the bottom of the water collection tank 1.

[0030] The working principle of this utility model is as follows:

[0031] During use, the outlet of the oxygen generator is first connected to the inlet pipe 16 via a flexible hose, allowing the condensate from the oxygen generator to enter the filter assembly. The condensate then passes through the first filter layer 4, the second filter layer 5, and the third filter layer 6 in sequence for filtration. Finally, it flows into the water collection tank 1 through the drain hole 13 for storage. A water level monitor 17 is installed inside the water collection tank 1 to monitor the water level. When the water level reaches a set value, the water level monitor 17 will issue an alarm to remind the staff to drain the water in time.

[0032] When the filter assembly filters condensate, the drive motor 11 can be started to drive the connecting seat 10 to rotate, thereby driving the rotating shaft 9 to rotate. The rotation of the rotating shaft 9 can synchronously drive multiple sets of scrapers 8 to rotate, thereby scraping the particulate impurities filtered from the surfaces of the first filter layer 4, the second filter layer 5, and the third filter layer 6, preventing particulate impurities from accumulating on the surfaces of the first filter layer 4, the second filter layer 5, and the third filter layer 6 and causing blockage.

[0033] In addition, when the filter assembly needs to be cleaned and replaced, first pull out the sealing cover 15, and then disassemble the threaded fixing seat 14. At this time, the staff can take the entire filter assembly out of the installation cylinder 2 for cleaning and replacement.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A drainage device for a medical molecular sieve oxygen generator, characterized in that, It includes a water collection tank (1), and an installation cylinder (2) is provided at the middle of the upper end of the water collection tank (1), and a filter assembly is provided at the middle of the inner side of the installation cylinder (2); The filter assembly includes a first filter layer (4), a second filter layer (5), and a third filter layer (6) from top to bottom. Scrapers (8) are movably mounted on the upper surfaces of the first filter layer (4), the second filter layer (5), and the third filter layer (6). Rotary seats (7) are provided at the head ends of the multiple sets of scrapers (8). The multiple sets of rotating seats (7) are coaxially connected by a rotating shaft (9). The rotating shaft (9) passes through the first filter layer (4), the second filter layer (5), and the third filter layer (6). A drive motor (11) is provided at the bottom of the rotating shaft (9). The filter assembly also includes a support frame (3). The first filter layer (4), the second filter layer (5) and the third filter layer (6) are installed at equal intervals in a vertical direction. The support frame (3) is inserted into the middle of the inner side of the mounting cylinder (2). A sealing cover (15) is provided on the top of the mounting cylinder (2). A water inlet pipe (16) is provided in the middle of the inner side of the sealing cover (15).

2. The drainage device for a medical molecular sieve oxygen generator according to claim 1, characterized in that, The mounting cylinder (2) has multiple sets of drainage holes (13) around its bottom. The drainage holes (13) are located at the bottom of the filter assembly and are distributed in an axial ring.

3. The drainage device for a medical molecular sieve oxygen generator according to claim 2, characterized in that, The drive motor (11) is fixedly installed in the middle of the bottom of the mounting cylinder (2). The output end of the mounting cylinder (2) is provided with a connecting seat (10). The connecting seat (10) is movably installed in the bottom of the inner side of the mounting cylinder (2). The rotating shaft (9) is inserted into the connecting seat (10).

4. The drainage device for a medical molecular sieve oxygen generator according to claim 3, characterized in that, A limiting ring (12) is provided in the middle of the inner side of the mounting cylinder (2). The limiting ring (12) is located at the bottom of the support frame (3). A fixing seat (14) is provided at the upper end of the support frame (3). The fixing seat (14) and the limiting ring (12) clamp and fix the support frame (3) from both ends respectively.

5. A drainage device for a medical molecular sieve oxygen generator according to claim 4, characterized in that, The fixed base (14) is threadedly connected to the mounting cylinder (2), and the sealing cover (15) is installed in the middle of the inner side of the fixed base (14).

6. A drainage device for a medical molecular sieve oxygen generator according to claim 5, characterized in that, The inner wall of the water collection tank (1) is equipped with a water level monitor (17), and a water outlet pipe (18) is provided on one side of the bottom of the water collection tank (1).

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