An oxygen generator with automatic replacement of spare filters

Abstract

The present application relates to an oxygen generator with automatic replacement of spare filter elements, which includes an oxygen generation housing, a filtering assembly, a driving assembly, a ventilation valve, a molecular sieve barrel, and an oxygen storage barrel; the oxygen generation housing is placed on the ground, and the filtering assembly, the driving assembly, a compressor, the ventilation valve, the molecular sieve barrel, and the oxygen storage barrel are arranged inside the oxygen generation housing; the filtering assembly includes a filter cylinder fixed inside the oxygen generation housing and a plurality of filter element chambers arranged at intervals along the circumferential direction of the filter cylinder, a filtering cavity for placing the filter element chambers is formed inside the filter cylinder, and the filter element is fixed in the filter element chamber through a fixing component; the driving assembly controls the rotation of the filter element to align the replaced filter element with the ventilation valve; a connecting rod is connected to the ventilation hole of the ventilation valve, the connecting rod can be compressed and abuts against the filter element, and the inside of the connecting rod is hollow; the ventilation valve is connected to a plurality of molecular sieve barrels, and one end of the molecular sieve barrel far away from the ventilation valve is connected to the oxygen storage barrel. The present application can improve the efficiency of filter element replacement.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and particularly to an oxygen generator with automatic replacement of a spare filter element. Background Art

[0002] An oxygen generator is an oxygen collector. According to the principle, there are two common oxygen collectors on the market: one uses molecular sieve to produce oxygen, and the other uses an "oxygen-adsorbing membrane" also known as a "oxygen-enriched membrane" to produce oxygen. Oxygen inhalation means inhaling oxygen, which is a commonly used clinical treatment method. Oxygen therapy is mainly a method to relieve hypoxia.

[0003] Generally, a molecular sieve is arranged inside the oxygen generator to separate oxygen and nitrogen in the air. Before the air is separated, in order to ensure the air quality, the air needs to be filtered. However, after long-term use, a large amount of impurities will accumulate on the filter mesh of the filter element, resulting in poor filtering effect of the filter element; and during use, the filter element may malfunction. Currently, when the above two problems occur, the oxygen generator needs to be stopped and the filter element needs to be removed for replacement, and this replacement method has low efficiency. Summary of the Invention

[0004] In order to improve the efficiency of filter element replacement, the present application provides an oxygen generator with automatic replacement of a spare filter element.

[0005] The oxygen generator with automatic replacement of a spare filter element provided by the present application adopts the following technical solutions:

[0006] An oxygen generator with automatic replacement of a spare filter element includes an oxygen generation housing, a filtering assembly, a driving assembly, a ventilation valve, a molecular sieve barrel, and an oxygen storage barrel; the oxygen generation housing is placed on the ground, and the filtering assembly, the driving assembly, a compressor, the ventilation valve, the molecular sieve barrel, and the oxygen storage barrel are arranged inside the oxygen generation housing; the filtering assembly includes a filter cylinder fixed inside the oxygen generation housing and a plurality of filter element chambers arranged at intervals along the circumferential direction of the filter cylinder. A filtering cavity for placing the filter element chambers is provided inside the filter cylinder, and the filter element is fixed in the filter element chamber through a fixing component; the driving assembly controls the rotation of the filter element to align the replaced filter element with the ventilation valve; a connecting rod is connected to the ventilation hole of the ventilation valve. The connecting rod is compressible and abuts against the filter element, and the inside of the connecting rod is hollow; the ventilation valve is connected to a plurality of molecular sieve barrels, and one end of the molecular sieve barrel far from the ventilation valve is connected to the oxygen storage barrel.

[0007] By adopting the above technical solutions, when oxygen generation is required, a plurality of filter elements are installed in the filter element chambers through the fixing component, and at the same time, the filter element abuts against the connecting pipe. When the filter element is used for a period of time or is damaged, the driving assembly is operated to make the whole filtering cavity rotate. At the same time, the connecting rod expands and contracts but its position does not change until the connecting rod abuts against a new filter element, thereby completing the automatic replacement of the filter element without stopping the machine and removing the filter element for replacement, thus improving the efficiency of filter element replacement.

[0008] Optionally, a take-out groove is formed in the side wall of the filtering chamber. The take-out groove is formed along the length direction of the filtering chamber. An installation cover is hinged to the wall of the take-out groove, and the width of the take-out groove is greater than the diameter of the filter element.

[0009] By adopting the above technical solution, when all the filter elements can no longer support filtration, the driving motor can be started multiple times. Each time, each filter element is aligned with the take-out groove, and the used filter element can be taken out. Then, new filter elements are installed in sequence. The setting of multiple filter elements allows for unified replacement, which further improves the efficiency compared to replacing each one separately.

[0010] Optionally, the fixing component includes a compression spring embedded in the side wall of the filter element chamber and a fixing plate installed at one end of the compression spring close to the center of the filter element chamber. The height of the compression spring in the non-extruded state is greater than the wall thickness of the filter element chamber. An embedding groove for embedding the fixing plate is formed in the inner wall of the filter element chamber. The fixing plate is in a semi-circular arc shape and is engaged with the filter element.

[0011] By adopting the above technical solution, during installation, the fixing plate is pulled out, the filter element is installed on the side of the fixing plate away from the compression spring, and then the fixing plate is embedded into the embedding groove. At this time, the compression spring is in a compressed state. When the filter element needs to be replaced, the oxygen-making outer shell is opened, and under the action of the compression spring, the filter element is slightly ejected, so that the filter element can be taken out for replacement.

[0012] Optionally, a detection component for detecting whether the filter element needs to be replaced is further provided in the filtering chamber. The detection component includes a dust detector embedded in the filtering chamber, a controller coupled to the dust detector, and a warning light coupled to the controller.

[0013] By adopting the above technical solution, a range within which the filter element can be used normally is set in the dust detector. During use, the dust detector detects the dust near the filter element in real time. When the dust content detected by the dust detector is greater than the set range, a signal is transmitted to the controller, and the controller controls the warning light to light up. At this time, the filter element should be replaced. When the dust content detected by the dust detector is less than or equal to the set range, a signal is transmitted to the controller, and the controller controls the warning light to turn off.

[0014] Optionally, an axial flow fan is provided inside the oxygen-making outer shell. The axial flow fan is used to ensure the temperature inside the oxygen generator.

[0015] By adopting the above technical solution, the axial flow fan is provided to discharge the heat inside the oxygen generator. At the same time, the axial flow fan installed inside the oxygen generator can also cool the compressed air and cool the compressor. This can not only extend the service life of the oxygen generator and the compressor, but also prevent the compressed air from having an impact on the subsequent machines due to too high temperature.

[0016] Optionally, a condenser capable of reducing the gas temperature is provided at one end of the air change valve, and the end of the condenser away from the air change valve is connected to the compressor.

[0017] By adopting the above technical solution, when the oxygen generator is started, the condenser is turned on. When the air passes through the compressor and before entering the air change valve and the molecular sieve, the temperature of the gas in the pipeline is reduced by the condenser, thus avoiding the high temperature of the oxygen after being compressed by the compressor and affecting the inside of the air change valve and the molecular sieve, which is beneficial to extending the service life of the air change valve and the molecular sieve.

[0018] Optionally, a humidifying bottle is connected to the oxygen outlet of the oxygen storage tank. The humidifying bottle is arranged outside the shell of the oxygen generator. An oxygen inlet hole and an oxygen outlet hole are provided on the humidifying bottle. The minimum water level line and the maximum water level line are processed outside the humidifying bottle, and the water level in the humidifying bottle is set between the maximum and minimum water level lines.

[0019] By adopting the above technical solution, during use, oxygen enters from the oxygen outlet, is humidified inside the bottle, and then flows out from the oxygen outlet hole. The oxygen is humidified by the humidifying bottle, making it more comfortable and safe for patients to use; the external humidifying bottle makes it convenient to disassemble and replace the water inside the humidifying bottle, and at the same time reduces the temperature of the oxygen entering the human body, avoiding the generation of water droplets due to cooling when passing through the nasal oxygen tube and affecting the oxygen inhalation effect; the minimum water level line of the humidifying bottle prevents the water volume from being too small and the humidifying effect from being weak; the maximum water level line of the humidifying bottle prevents the water volume from being too high and the pressure from being too high after oxygen is introduced, causing accidents.

[0020] Optionally, a pressure regulating valve and a flow meter are provided between the oxygen storage tank and the humidifying bottle, and the pressure regulating valve changes according to the flow rate change of the flow meter.

[0021] By adopting the above technical solution, when the oxygen in the oxygen storage tank flows to the humidifying bottle through the connecting pipe, it is adjusted by the pressure regulating valve. Since the pressure change range of the oxygen output by the molecular sieve is relatively large, direct output will cause discomfort to the patient. After detection by the flow meter and joint adjustment of the pressure regulating valve, the pressure of the oxygen gradually becomes stable, which is more beneficial to treatment.

[0022] Optionally, the oxygen generator shell is made of cold-rolled copper plate, and the thickness of the oxygen generator shell is 0.8 mm - 1.2 mm.

[0023] By adopting the above technical solution, the oxygen generator shell is made of high-quality cold-rolled steel plate, with a solid structure and impact resistance, providing a solid support for the oxygen generator. The thickness is set to 0.8 mm - 1.2 mm, which is beneficial to heat dissipation during use and extends the service life of the entire machine; and effectively reduces the noise generated during the operation of the oxygen generator.

[0024] Optionally, four sliding wheels are provided at the bottom of the oxygen generator housing, and two of the rear sliding wheels are set as brake casters.

[0025] By adopting the above technical solution, when it is necessary to move the oxygen generator to different positions, it can be moved through the sliding wheels at the bottom. And in order to prevent the oxygen generator from shifting due to the setting of the sliding wheels during use, the two rear sliding wheels are set as brake casters, so that the oxygen generator can remain relatively stationary after stopping. Description of the Drawings

[0026] Figure 1 is a schematic diagram of the overall structure of the present application.

[0027] Figure 2 is a partial schematic diagram showing the internal structure of the present application.

[0028] Figure 3 is a partial schematic diagram showing another perspective of the internal structure of the present application.

[0029] Figure 4 is a specific schematic diagram of the oxygen storage tank and the pressure regulating component of the present application.

[0030] Figure 5 is a specific schematic diagram of the humidifying bottle in the present application. Detailed Embodiment

[0031] The following will Figures 1-5 further describe the present application in detail.

[0032] The embodiment of the present application discloses an oxygen generator with automatic replacement of a spare filter element.

[0033] Referring to Figure 1 , an oxygen generator with automatic replacement of a spare filter element includes an oxygen generator housing, a filtering component, a driving component, a ventilation valve, a molecular sieve cylinder, and an oxygen storage tank; the oxygen generator housing is placed on the ground, and the filtering component, the driving component, a compressor, the ventilation valve, the molecular sieve cylinder, and the oxygen storage tank are arranged inside the oxygen generator housing; the filtering component includes a filter cylinder fixed inside the oxygen generator housing and a plurality of filter element chambers arranged at intervals along the circumferential direction of the filter cylinder. A filter cavity for placing the filter element chambers is provided inside the filter cylinder, and the filter element is fixed in the filter element chamber through a fixing component; the driving component controls the rotation of the filter element to align the replaced filter element with the ventilation valve; a connecting rod is connected to the ventilation hole of the ventilation valve, the connecting rod can be compressed and abuts against the filter element, and the inside of the connecting rod is hollow; the ventilation valve is connected to a plurality of molecular sieve cylinders, and one end of the molecular sieve cylinder far away from the ventilation valve is connected to the oxygen storage tank.

[0034] By adopting the above technical solution, when oxygen generation is required, multiple filter elements are installed in the filter element chamber through the fixing component, and at the same time, the filter elements are abutted against the connecting pipes. When the filter elements are used for a period of time or damaged, the driving component is operated to make the whole filter chamber rotate. At the same time, the connecting rod expands and contracts but its position does not change until the connecting rod abuts against the new filter element, thus completing the automatic replacement of the filter element without stopping the machine and removing the filter element for replacement, thereby improving the replacement efficiency of the filter element.

[0035] Optionally, a removal groove is formed in the side wall of the filter chamber, the removal groove is formed along the length direction of the filter chamber, an installation cover is hinged on the wall of the removal groove, and the width of the removal groove is greater than the diameter of the filter element.

[0036] By adopting the above technical solution, when all the filter elements can no longer support continuous filtration, the driving motor can be started multiple times. Each time, each filter element is aligned with the removal groove, the used filter element is removed, and then the new filter elements are installed in sequence. The setting of multiple filter elements allows for unified replacement, further improving the efficiency compared to replacing each time.

[0037] Optionally, the fixing component includes a compression spring embedded in the side wall of the filter element chamber and a fixing plate installed at one end of the compression spring close to the center of the filter element chamber. The height of the compression spring in the non-extruded state is greater than the wall thickness of the filter element chamber. An embedding groove for the fixing plate to be embedded is formed in the inner wall of the filter element chamber. The fixing plate is semi-circular and is clamped with the filter element.

[0038] By adopting the above technical solution, during installation, the fixing plate is pulled out, the filter element is installed on the side of the fixing plate away from the compression spring, and the fixing plate is embedded in the embedding groove. At this time, the compression spring is in a compressed state; when the filter element needs to be replaced, the oxygen generation outer shell is opened, and under the action of the compression spring, the filter element is slightly ejected, so as to remove the filter element for replacement.

[0039] Optionally, a detection component for detecting whether the filter element needs to be replaced is further arranged in the filter chamber. The detection component includes a dust detector embedded in the filter chamber, a controller coupled to the dust detector, and a warning lamp coupled to the controller.

[0040] By adopting the above technical solution, a range within which the filter element can be used normally is set in the dust detector; during use, the dust detector detects the dust near the filter element in real time. When the dust content detected by the dust detector is greater than the set range, a signal is transmitted to the controller, and the controller controls the warning lamp to light up. At this time, the filter element should be replaced; when the dust content detected by the dust detector is less than or equal to the set range, a signal is transmitted to the controller, and the controller controls the warning lamp to turn off.

[0041] Optionally, an axial flow fan is provided inside the oxygen generator housing, and the axial flow fan is used to ensure the temperature inside the oxygen generator.

[0042] By adopting the above technical solution, the axial flow fan is provided to discharge the heat inside the oxygen generator. At the same time, the axial flow fan provided inside the oxygen generator can also cool the compressed air and cool the compressor. This can not only extend the service life of the oxygen generator and the compressor, but also prevent the compressed air from having an impact on the subsequent machines due to too high temperature.

[0043] Optionally, a condenser capable of reducing the gas temperature is provided at one end of the air exchange valve, and the end of the condenser far from the air exchange valve is connected to the compressor.

[0044] By adopting the above technical solution, when the oxygen generator is started, the condenser is turned on. When the air passes through the compressor and before entering the air exchange valve and the molecular sieve, the temperature of the gas in the pipeline is reduced by the condenser, so as to avoid the higher temperature of the oxygen after being compressed by the compressor and having an impact on the inside of the air exchange valve and the molecular sieve, which is beneficial to extending the service life of the air exchange valve and the molecular sieve.

[0045] Optionally, a humidifying bottle is connected to the oxygen outlet of the oxygen storage tank. The humidifying bottle is arranged outside the oxygen generator housing. The humidifying bottle is provided with an oxygen inlet hole and an oxygen outlet hole. The minimum water level line and the maximum water level line are processed outside the humidifying bottle, and the water level in the humidifying bottle is set between the maximum and minimum water level lines.

[0046] By adopting the above technical solution, during use, oxygen enters from the oxygen outlet, is humidified inside the bottle, and then flows out from the oxygen outlet hole. The oxygen is humidified by the humidifying bottle, making it more comfortable and safe for patients to use; the external humidifying bottle makes it convenient to disassemble and replace the internal water of the humidifying bottle, and at the same time reduces the temperature of the oxygen introduced into the human body, avoiding the formation of water droplets due to the cold when passing through the nasal oxygen tube, which affects the oxygen inhalation effect; the minimum water level line of the humidifying bottle prevents the water volume from being too small and the humidifying effect from being weak; the maximum water level line of the humidifying bottle prevents the water volume from being too high and the pressure from being too high after introducing oxygen, causing accidents.

[0047] Optionally, a pressure regulating valve and a flow meter are provided between the oxygen storage tank and the humidifying bottle, and the pressure regulating valve changes according to the flow rate change of the flow meter.

[0048] By adopting the above technical solution, when the oxygen in the oxygen storage tank flows to the humidifying bottle through the connecting pipe, it is adjusted by the pressure regulating valve. Since the pressure change range of the oxygen output by the molecular sieve is relatively large, direct output will cause discomfort to the patient. After detection by the flow meter and joint adjustment of the pressure regulating valve, the pressure of the oxygen gradually becomes stable, which is more beneficial for treatment.

[0049] Optionally, the oxygen generation housing is made of cold-rolled copper plate, and the thickness of the oxygen generation housing is 0.8 mm - 1.2 mm.

[0050] By adopting the above technical solution, the oxygen generation housing is made of high-quality cold-rolled steel plate, with a strong structure and impact resistance, providing a strong support for the oxygen generator. The thickness is set to 0.8 mm - 1.2 mm, which is beneficial to heat dissipation during use and extends the service life of the entire machine; and effectively reduces the noise generated during the operation of the oxygen generator.

[0051] Optionally, four sliding wheels are provided at the bottom of the oxygen generation housing, and two of the rear sliding wheels are set as brake casters.

[0052] By adopting the above technical solution, when it is necessary to move the oxygen generator to different positions, it can be moved through the sliding wheels at the bottom. And to avoid displacement of the oxygen generator during use due to the setting of the sliding wheels, the two rear sliding wheels are set as brake casters, so that the oxygen generator can remain relatively stationary after stopping.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An oxygen generator with automatic replacement of spare filters, characterized in that: It includes an oxygen - making housing, a filtering component, a driving component, a compressor, a ventilation valve, a molecular sieve barrel, and an oxygen storage barrel; The oxygen - making housing is placed on the ground, and the filtering component, the driving component, the compressor, the ventilation valve, the molecular sieve barrel, and the oxygen storage barrel are arranged inside the oxygen - making housing; The filtering component includes a filter cylinder fixed inside the oxygen - making housing and a plurality of filter core chambers arranged at intervals along the circumferential direction of the filter cylinder. A filter cavity for placing the filter core chambers is provided inside the filter cylinder, and the filter element is fixed in the filter core chamber through a fixing component; The driving component controls the rotation of the filter element to align the replaced filter element with the ventilation valve; A connecting rod is connected to the ventilation hole of the ventilation valve. The connecting rod can be compressed and abuts against the filter element, and the inside of the connecting rod is hollow. The ventilation valve is connected to a plurality of molecular sieve barrels, and one end of the molecular sieve barrel away from the ventilation valve is connected to the oxygen storage barrel; An extraction groove is provided on the side wall of the filter cavity. The extraction groove is opened along the length direction of the filter cavity. An installation cover is hinged on the wall of the extraction groove, and the width of the extraction groove is greater than the diameter of the filter element; The fixing component includes a compression spring embedded in the side wall of the filter core chamber and a fixing plate installed at one end of the compression spring close to the center of the filter core chamber. The height of the compression spring in the non - extrusion state is greater than the wall thickness of the filter core chamber. The setting direction of the compression spring and the inner wall of the filter core chamber are provided with an embedding groove for the fixing plate to be embedded. The fixing plate is semi - circular arc - shaped and is clamped with the filter element; A detection component for detecting whether the filter element needs to be replaced is also provided inside the filter cavity. The detection component includes a dust detector embedded in the filter cavity, a controller coupled to the dust detector, and a warning lamp coupled to the controller; 2. The oxygen generator with automatic replacement of spare filters according to claim 1, characterized in that: An axial - flow fan is arranged inside the oxygen - making housing, and the axial - flow fan is used to ensure the temperature inside the oxygen - making machine; 3. The oxygen generator with automatic replacement of spare filters according to claim 2, characterized in that: A condenser capable of reducing the gas temperature is arranged at one end of the ventilation valve, and one end of the condenser away from the ventilation valve is connected to the compressor; 4. The oxygen generator with automatic replacement of spare filter element according to claim 3, characterized in that: A humidifying bottle is connected to the oxygen outlet of the oxygen storage barrel. The humidifying bottle is arranged outside the oxygen - making machine housing. The humidifying bottle is provided with an oxygen inlet hole and an oxygen outlet hole. The lowest water level line and the highest water level line are processed on the outside of the humidifying bottle, and the water level in the humidifying bottle is set between the highest and the lowest water level lines; 5. The oxygen generator with automatic replacement of spare filters according to claim 4, characterized in that: A pressure regulating valve and a flow meter are arranged between the oxygen storage barrel and the humidifying bottle, and the pressure regulating valve changes according to the flow rate change of the flow meter; 6. The oxygen generator with automatic replacement of spare filter elements according to claim 4, characterized in that: The oxygen - making housing is made of cold - rolled copper plate, and the thickness of the oxygen - making housing is 0.8mm - 1.2mm; 7. An oxygen generator with automatic replacement of a spare filter element according to claim 4, characterized in that: Four sliding wheels are arranged at the bottom of the oxygen - making housing, and two of the rear sliding wheels are set as brake casters.

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