A silent medical oxygen concentrator with air filtration function

Abstract

The present invention discloses a silent medical oxygen generator with air filtering function, and relates to the technical field of medical oxygen generators. It includes a control box, a first molecular sieve tower, a second molecular sieve tower, a flexible pipeline, a base, a vibration reduction conduction component, an air compression tower and an air purification component. The present invention uses an adjusting motor to change the rotation angle of the adjusting component. By changing the angle of the adjusting component, the spacing between the vertical rod and the adjusting inclined plate is adjusted. By changing the spacing between the vertical rod and the adjusting inclined plate, the vertical rod drives the vibration amplitude and frequency of the adjusting inclined plate to change, so as to achieve the purpose of adjusting the vibration amplitude according to the blockage degree of the filter. The self-vibration of the vertical rod and the auxiliary vibration of the filter vibration housing are used to drive the vibration of the conduction rod, and the conduction rod drives the filter cone and the dust collector to vibrate. The vibration causes the dust and impurities attached to the filter to fall off quickly, thereby achieving the purpose of driving the filter to clear the blockage by the self-vibration of the air compression device. At the same time, the purpose of quickly cleaning the dust collector is also achieved.

Description

Technical Field

[0001] The invention relates to the technical field of medical oxygen concentrators, in particular to a silent medical oxygen concentrator with an air filtering function. Background Art

[0002] As an advanced medical device, medical oxygen concentrator plays an indispensable role in the field of modern medicine and health care. It uses advanced pressure swing adsorption and other technologies to efficiently extract pure oxygen from the air and provide patients with a stable and reliable oxygen supply. In the medical field, medical oxygen concentrators are widely used in the treatment of cardiovascular and respiratory diseases in conjunction with medical means. Medical oxygen concentrators can provide necessary oxygen support, correct hypoxemia or improve hypercapnia, thereby reducing tissue edema and accelerating the cell repair process. In addition, medical oxygen concentrators also play an important role in medical institutions such as hospitals, clinics, health stations and other places, providing medical staff with a powerful treatment tool.

[0003] Although oxygen concentrators have high medical value, the air compression device in the oxygen concentrator is prone to noise when working, which reduces the patient's experience. When used in dusty environments with poor air quality, large particles of impurities and dust will bring a great filtration burden to ordinary oxygen concentrators. Relying solely on traditional molecular sieves and other adsorbents to absorb these impurities and dust will reduce the efficiency of the filtration system, or even clog it, causing the oxygen concentrator to be unable to operate in harsh environments. Summary of the invention

[0004] The object of the present invention is to provide a silent medical oxygen concentrator with air filtering function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a silent medical oxygen concentrator with air filtering function, comprising a base, a control box is installed on the base, a gas storage tank is integrated in the control box, a first molecular sieve tower and a second molecular sieve tower are installed on the base, an air compression tower is installed on the base, the air compression tower is connected with the inside of the first molecular sieve tower and the second molecular sieve tower respectively through pipelines, an air compression device is installed in the air compression tower, the first molecular sieve tower and the second molecular sieve tower are both connected with the inside of the gas storage tank through pipelines, an air purification component and a vibration reduction conduction component are installed in the air compression tower, the air compression device is located in the vibration reduction conduction component, a flexible pipeline is installed on the air purification component, and the air purification component and the vibration reduction conduction component are connected through the flexible pipeline; the air purification component comprises a limit ring, a plurality of vibration dust removal components are slidably installed on the limit ring, a plurality of filter cones are slidably installed on the vibration dust removal component, a dust collector is installed at the bottom of the filter cone, a flexible pipeline is installed between the filter cone and the dust collector, and a flexible pipeline is installed between the dust collector and the vibration reduction conduction component.

[0006] A control system is installed in the control box, which is used to control the entire medical oxygen generator; a duct is installed at the bottom of the dust collector at the bottom, which is connected to the external dust box, and dust and particulate matter fall into the dust box from the duct.

[0007] The filtered air is compressed by the air compressor, and after cooling, it is transported from the compressed air tower to the first molecular sieve tower. The control system increases the voltage of the first molecular sieve tower. Under the high-pressure environment, the speed at which the molecular sieve in the first molecular sieve tower adsorbs oxygen and nitrogen changes. When air passes through the molecular sieve, nitrogen and other gases are preferentially adsorbed by the molecular sieve, and oxygen quickly flows out of the pores of the molecular sieve and enters the gas storage tank. After that, the control system closes the first molecular sieve tower and opens the second molecular sieve tower at the same time. The second molecular sieve tower takes over the first molecular sieve tower to separate the oxygen in the air. After the high pressure inside the first molecular sieve tower is lost, the adsorbed nitrogen and other gases are released and discharged. This cycle is repeated to achieve the preparation of high-concentration oxygen.

[0008] The vibration reduction conduction component includes a vibration filter, an adjustment motor and an adjustment component. The vibration filter is slidably installed in the air compression tower. A plurality of spring telescopic rods are installed at the bottom of the vibration filter. The bottom ends of the spring telescopic rods are connected to the air compression tower. The adjustment component is rotatably installed in the air compression tower. The adjustment motor is installed in the air compression tower. An adjustment gear is installed on the output shaft of the adjustment motor. The adjustment gear is meshed with the adjustment component for transmission. A conductor is slidably installed in the vibration filter. An air compression device is integrated in the conductor. A flexible pipe is installed between the conductor and the dust collector.

[0009] The adjusting assembly includes an adjusting toothed ring and a bottom ring. A plurality of vibration rods are installed on the bottom ring. The vibration rods penetrate the adjusting toothed ring and are installed with a top ring. The adjusting toothed ring is rotatably installed in the air compression tower. The adjusting toothed ring meshes with the adjusting gear for transmission. A plurality of conduction plates are installed on the top ring. Empty grooves are provided between the conduction plates. A plurality of adjustment inclined plates are installed at the bottom end of the bottom ring. A slope is provided on the adjustment inclined plate.

[0010] The output shaft of the adjusting motor drives the adjusting gear to rotate, and the adjusting gear drives the entire adjusting assembly to rotate. Since a slope is provided on the adjusting inclined plate, the distance between the adjusting inclined plate and the vertical rod changes with the rotation. The control system adjusts the distance between the adjusting inclined plate and the vertical rod through rotation control according to the degree of blockage of the filter. The more serious the blockage, the closer the distance between the adjusting inclined plate and the vertical rod is made, until they are completely fitted. When the vertical rod vibrates, the smaller the distance between the adjusting inclined plate and the vertical rod, the greater the vibration transmission. As the distance increases, only large-amplitude vibration can generate sufficient displacement to be transmitted to the adjusting inclined plate. The conduction plate rotates with the adjusting assembly. In normal state, the vibration ball is located in the empty slot between the conduction plates. When the adjusting assembly rotates, the empty slot turns away from the vibrator position, and the conduction plate rotates to the bottom of the vibration ball and contacts the vibration ball.

[0011] The vibration filter includes a vibration filter housing, which is slidably installed in the air compression tower. A spring telescopic rod is installed at the bottom of the vibration filter housing. An annular slide is provided on the vibration filter housing. A compression chamber is provided in the vibration filter housing. A vertical slide is provided on the vibration filter housing, which is connected to the interior of the compression chamber. A horizontal slide is provided on the vibration filter housing, which is connected to the interior of the compression chamber. The vibration filter housing is slidably connected to the conductor through the annular slide.

[0012] The vibration filter also includes a vertical rod and a horizontal rod. A first piston is installed at one end of the horizontal rod. The horizontal rod is slidably installed in the horizontal slide through the first piston. A second piston is installed at the bottom end of the vertical rod. The vertical rod is slidably installed in the vertical slide through the second piston. The number of vertical rods corresponds to the number of adjusting inclined plates. A force transmission block is installed at the other end of the horizontal rod. A horizontal spring is installed between the force transmission block and the vibration filter housing.

[0013] The conductor includes a compressor barrel, which is integrated with an air compression device. A number of vibration rings are installed on the compressor barrel. Ball slide grooves are provided at the top and bottom ends of the vibration rings. A number of sliding balls are installed in the ball slide grooves. The vibration rings are slidably installed on the annular slide grooves through the sliding balls. A flexible pipe is installed between the compressor barrel and the dust collector.

[0014] When the air compression device is working, it will inevitably generate irregular vibration. The vibration of the air compression device is transmitted to the vibration ring through the compressor barrel, causing the vibration ring to produce displacements in multiple directions following the vibration. The vibration ring slides in the annular groove under the action of the sliding ball. Under the upper and lower constraints of the annular groove of the filter housing, the vibration ring can only produce horizontal sliding displacement relative to the annular groove, while the vertical displacement caused by the vibration is transmitted to the filter housing, causing the filter housing to slide vertically in the air compression tower along the direction of the spring telescopic rod. The oblique movement caused by the vibration is decomposed into horizontal and vertical displacements under the constraints of the filter housing and the annular groove. The vertical movement of the filter housing drives the spring telescopic rod to extend and retract, so that part of the vibration is absorbed by the spring telescopic rod to achieve a silent effect. The remaining vibration causes the vibration filter housing to drive the vertical rod to vibrate up and down. When the vibration ring is displaced horizontally due to the vibration, it drives the surrounding force transmission blocks to move. The force transmission blocks overcome the elastic force of the horizontal spring and drive the horizontal rod to slide in the horizontal slide. When the horizontal rod slides, the first piston on the horizontal rod compresses the medium in the compression chamber. The compression chamber is pressurized to increase the internal pressure. Under the action of pressure, the vertical rod moves upward. When the first piston retreats in the compression chamber, the space in the compression chamber increases and the pressure drops, causing the vertical rod to retract, thereby converting the horizontal vibration into vertical displacement of the vertical rod, allowing the vertical rod to vibrate by itself, and finally, under the action of the vibration filter, part of the vibration generated by the air compression device is absorbed, and the other part is converted into vertical vibration of the vertical rod and the vibration filter housing.

[0015] A plurality of filter cones are provided with filter screens with pores decreasing from top to bottom, a plurality of iron core rods are installed on the filter cone, and a dust outlet is provided at the bottom of the filter cone; the dust collector includes a dust removal pipe and a connecting rod, a dust removal outlet is provided at the bottom of the dust removal pipe, a connecting piece is installed at the top of the dust removal pipe, and the connecting piece is installed on the filter cone through the connecting rod.

[0016] The control system turns on the air compression tower, and the external air is sucked into the air compression tower. After the air enters the air compression tower, it first enters the first filter cone. The filter on the filter cone filters the large particles of impurities and dust in the air. The filtered air enters the next filter cone. The next filter cone further filters the smaller particles of impurities and dust remaining in the air. The air passes through the filter cones of each layer in turn until the impurities and dust in the air are filtered out. After that, it enters the air compression device to achieve the purpose of multi-stage filtration of the air. The impurities and dust filtered out remain in the filter. When the air passes through the filter cone, a small part of the air flows into the dust outlet. When this part of the airflow flows, it drives a part of the impurities and dust attached to the filter net to fall into the dust outlet, achieving the purpose of self-cleaning of the filter cone. The impurities and dust enter the dust removal pipe from the dust outlet, and then flow from the dust removal port at the bottom of the dust removal pipe into the dust outlet on the next filter cone, and then go down in turn until the impurities and dust fall into the dust removal pipe at the bottom, and then flow out from the dust removal pipe at the bottom and enter the external dust collection box, achieving the purpose of automatically removing and collecting the filtered impurities and dust.

[0017] The vibration dust removal assembly includes a conduction rod, a filter cone is slidably installed on the conduction rod, an anti-drop ring is installed on the conduction rod, the conduction rod is slidably installed on the limit ring, a detection ring is installed on the conduction rod, an induction coil is installed on the detection ring, a filter cone is slidably installed on the conduction rod, a detection spring is installed between the filter cone and the detection ring, and a vibrating ball is installed at the bottom end of the conduction rod.

[0018] With long-term use, impurities and dust will gradually adhere to the surface of the filter, and with the negative pressure suction of the air compression tower, many impurities and dust will adhere to the surface of the filter under the action of suction during the filtering process, making it difficult to slide off, and eventually causing the filter to be blocked; when the filter is blocked, the air cannot circulate normally, and the filter cone overcomes the elastic force of the detection spring and slides downward along the direction of the conduction rod under the action of negative pressure suction. The iron core rod on the filter cone slides downward with it. After sliding down a certain distance, the iron core rod enters the energized induction coil, and the induction coil generates an induced electromotive force. The control system analyzes the changes in the induced electromotive force to determine the distance that the iron core rod enters the induction coil, thereby determining the displacement of the filter cone. The more serious the filter blockage is, the greater the impact of the negative pressure suction is, and the greater the displacement of the filter cone is. The control system determines the blockage of the filter accordingly and starts the adjustment motor.

[0019] When the adjusting inclined plate and the vertical rod are within the effective vibration transmission distance, the filter vibration housing drives the vertical rod to vibrate, and then cooperates with the self-vibration of the vertical rod to make the adjusting inclined plate vibrate driven by the vertical rod, and the adjusting inclined plate drives the conduction plate on the top ring to vibrate through the bottom ring and the vibration rod, and the conduction plate drives the conduction rod to vibrate through the vibration ball, and the conduction rod drives the filter cone to vibrate. The vibration causes the dust and impurities attached to the filter to fall off quickly and fall into the dust collector along the inclined surface of the filter. The filter cone drives the dust collector to vibrate through the conduction rod, so that the impurities and dust collected in the dust collector quickly fall into the external dust collection box, thereby achieving the purpose of clearing the filter by self-vibration of the air compression device, and at the same time, the purpose of quickly cleaning the dust collector is also achieved.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Use the adjusting motor to change the rotation angle of the adjusting component. By changing the angle of the adjusting component, the distance between the vertical rod and the adjusting inclined plate can be adjusted. By changing the distance between the vertical rod and the adjusting inclined plate, the vertical rod drives the vibration amplitude and frequency of the adjusting inclined plate to change, so as to adjust the vibration amplitude according to the blockage degree of the filter. At the same time, the rotation of the adjusting component can also control the clutch of the conduction plate and the vibration ball, so that no vibration conduction occurs under normal conditions.

[0022] 2. The self-vibration of the vertical rod and the auxiliary vibration of the filter vibration housing are used to drive the conduction rod to vibrate, and the conduction rod drives the filter cone and the dust collector to vibrate. The vibration causes the dust and impurities attached to the filter to fall off quickly and fall into the dust collector along the inclined surface of the filter. The vibration causes the impurities and dust collected in the dust collector to fall quickly into the external dust collection box, thereby achieving the purpose of clearing the filter by self-vibration of the air compression device. At the same time, the purpose of quickly cleaning the dust collector is also achieved.

[0023] 3. The self-displacement of the filter caused by the negative pressure suction in a blocked environment is used to drive the iron core rod to move. The iron core rod enters the energized induction coil, and the induction coil generates an induced electromotive force. The control system determines the blockage of the filter by analyzing the changes in the induced electromotive force, thereby achieving the purpose of self-detection of the degree of filter blockage.

[0024] 4. Use multiple groups of filter cones to perform multi-stage filtration on impurities and dust in the air; use the setting of the dust outlet to divert the air and flow into the dust outlet. When this part of the airflow flows, it drives part of the impurities and dust attached to the filter to fall into the dust outlet, so as to achieve the purpose of self-cleaning of the filter cone; use the connection between the filter cone and the integrator to make the impurities and dust on each layer of the filter flow into the dust removal pipe at the bottom, and then flow out from the dust removal pipe at the bottom and enter the external dust collection box, so as to achieve the purpose of automatically removing and collecting the filtered impurities and dust.

[0025] 5. Use the vibration filter to convert and decompose the irregular vibration generated by the air compression device into horizontal and vertical vibrations, and absorb part of the vibration during the conversion process to achieve a silent effect. Then, use the horizontal rod to convert the displacement generated by the horizontal vibration into the self-vibration of the vertical rod. The vibration of the vertical rod will eventually drive the filter to vibrate and clear the blockage, thereby realizing the filtering and utilization of irregular vibrations. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an overall stereogram of the medical oxygen concentrator of the present invention;

[0027] Figure 2 is a three-dimensional diagram of the medical oxygen concentrator of the present invention;

[0028] Figure 3 is a cross-sectional view of the medical oxygen concentrator of the present invention;

[0029] Figure 4 A three-dimensional diagram of the vibration reduction conduction component of the present invention;

[0030] Figure 5 A perspective view of the adjustment assembly of the present invention;

[0031] Figure 6 is a three-dimensional diagram of the air purification component of the present invention;

[0032] Figure 7 is a three-dimensional diagram of the vibration filter of the present invention;

[0033] Figure 8 is a three-dimensional diagram of the conductor of the present invention;

[0034] Fig. 9 It is a cross-sectional view of the air purification component of the present invention.

[0035] In the figure: 1, control box; 2, first molecular sieve tower; 3, second molecular sieve tower; 4, flexible pipe; 5, base; 6, vibration reduction conduction component; 7, air compression tower; 8, air purification component; 61, adjustment component; 62, adjustment motor; 63, adjustment gear; 64, spring telescopic rod; 65, filter; 66, conductor; 611, conduction plate; 612, empty slot; 613, adjustment gear ring; 614, vibration rod; 615, adjustment inclined plate; 616, bottom ring; 617, top ring; 651, filter housing; 652, horizontal rod; 653, horizontal spring; 654, force transmission block; 655, vertical rod; 6 511, annular slide; 6512, horizontal slide; 6513, vertical slide; 6514, compression chamber; 661, compressor barrel; 662, vibration ring; 663, sliding ball; 664, ball slide; 811, filter; 812, iron core rod; 813, dust outlet; 821, connector; 822, connecting rod; 823, dust removal pipe; 824, dust removal port; 831, detection spring; 832, induction coil; 833, conduction rod; 834, vibration ball; 835, anti-slip ring; 836, detection ring; 81, filter cone; 82, dust collector; 83, vibration dust removal assembly; 84, limit ring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] like Figure 1-Figure 9As shown, the present invention provides a technical solution of a silent medical oxygen concentrator with an air filtering function: comprising a base 5, a control box 1 is installed on the base 5, a gas storage tank is integrated in the control box 1, a first molecular sieve tower 2 and a second molecular sieve tower 3 are installed on the base 5, an air compression tower 7 is installed on the base 5, the air compression tower 7 is connected to the inside of the first molecular sieve tower 2 and the second molecular sieve tower 3 through pipelines, an air compression device is installed in the air compression tower 7, the first molecular sieve tower 2 and the second molecular sieve tower 3 are both connected to the inside of the gas storage tank through pipelines, and an air purification group is installed in the air compression tower 7. Component 8 and vibration reduction conduction component 6, the air compression device is located in the vibration reduction conduction component 6, the air purification component 8 is installed with a flexible pipe 4, and the air purification component 8 and the vibration reduction conduction component 6 are connected through the flexible pipe 4; the air purification component 8 includes a limit ring 84, a plurality of vibration dust removal components 83 are slidably installed on the limit ring 84, a plurality of filter cones 81 are slidably installed on the vibration dust removal component 83, a dust collector 82 is installed at the bottom end of the filter cone 81, a flexible pipe 4 is installed between the filter cone 81 and the dust collector 82, and a flexible pipe 4 is installed between the dust collector 82 and the vibration reduction conduction component 6. A control system is installed in the control box 1, and the control system is used to control the entire medical oxygen concentrator; a duct is installed at the bottom end of the dust collector 82 at the bottom, and the duct is connected to the external dust collection box, and dust and particulate matter fall into the dust collection box from the duct.

[0038] A plurality of filter cones 81 are provided with filter screens 811 whose pores decrease from top to bottom, a plurality of iron core rods 812 are installed on the filter cone 81, and a dust outlet 813 is provided at the bottom end of the filter cone 81; the dust collector 82 includes a dust removal pipe 823 and a connecting rod 822, a dust removal outlet 824 is provided at the bottom end of the dust removal pipe 823, a connecting piece 821 is installed at the top end of the dust removal pipe 823, and the connecting piece 821 is installed on the filter cone 81 through the connecting rod 822.

[0039] The vibration dust removal assembly 83 includes a conduction rod 833, the filter cone 81 is slidably mounted on the conduction rod 833, an anti-slip ring 835 is installed on the conduction rod 833, the conduction rod 833 is slidably mounted on the limit ring 84, a detection ring 836 is installed on the conduction rod 833, an induction coil 832 is installed on the detection ring 836, the filter cone 81 is slidably mounted on the conduction rod 833, a detection spring 831 is installed between the filter cone 81 and the detection ring 836, and a vibration ball 834 is installed at the bottom end of the conduction rod 833.

[0040] The vibration reduction conduction component 6 includes a vibration filter 65, an adjustment motor 62 and an adjustment component 61. The vibration filter 65 is slidably installed in the air compression tower 7. A plurality of spring telescopic rods 64 are installed at the bottom end of the vibration filter 65. The bottom end of the spring telescopic rods 64 is connected to the air compression tower 7. The adjustment component 61 is rotatably installed in the air compression tower 7. The adjustment motor 62 is installed in the air compression tower 7. An adjustment gear 63 is installed on the output shaft of the adjustment motor 62. The adjustment gear 63 is meshed with the adjustment component 61 for transmission. A conductor 66 is slidably installed in the vibration filter 65. An air compression device is integrated in the conductor 66. A flexible pipe 4 is installed between the conductor 66 and the dust collector 82.

[0041] The adjustment component 61 includes an adjustment toothed ring 613 and a bottom ring 616. A plurality of vibration rods 614 are installed on the bottom ring 616. The vibration rods 614 penetrate the adjustment toothed ring 613 and are installed with a top ring 617. The adjustment toothed ring 613 is rotatably installed in the air compression tower 7. The adjustment toothed ring 613 is meshed with the adjustment gear 63 for transmission. A plurality of conduction plates 611 are installed on the top ring 617. Empty grooves 612 are provided between the conduction plates 611. A plurality of adjustment inclined plates 615 are installed at the bottom end of the bottom ring 616. The adjustment inclined plates 615 are provided with slopes.

[0042] The vibration filter 65 includes a vibration filter housing 651, which is slidably installed in the air compression tower 7. A spring telescopic rod 64 is installed at the bottom of the vibration filter housing 651. An annular slide groove 6511 is provided on the vibration filter housing 651. A compression chamber 6514 is provided in the vibration filter housing 651. A vertical slide 6513 is provided on the vibration filter housing 651, and the vertical slide 6513 is connected to the interior of the compression chamber 6514. A horizontal slide 6512 is provided on the vibration filter housing 651, and the horizontal slide 6512 is connected to the interior of the compression chamber 6514. The vibration filter housing 651 is slidably connected to the conductor 66 through the annular slide groove 6511.

[0043] The vibration filter 65 also includes a vertical rod 655 and a horizontal rod 652. A first piston is installed at one end of the horizontal rod 652, and the horizontal rod 652 is slidably installed in the horizontal slide 6512 through the first piston. A second piston is installed at the bottom end of the vertical rod 655, and the vertical rod 655 is slidably installed in the vertical slide 6513 through the second piston. The number of vertical rods 655 corresponds to the number of adjusting inclined plates 615. A force transmission block 654 is installed at the other end of the horizontal rod 652, and a horizontal spring 653 is installed between the force transmission block 654 and the vibration filter housing 651.

[0044] The conductor 66 includes a compressor barrel 661, in which an air compression device is integrated. A plurality of vibration rings 662 are installed on the compressor barrel 661. Ball grooves 664 are provided at the top and bottom ends of the vibration rings 662. A plurality of sliding balls 663 are installed in the ball grooves 664. The vibration rings 662 are slidably installed on the annular groove 6511 through the sliding balls 663. A flexible pipe 4 is installed between the compressor barrel 661 and the dust collector 82.

[0045] The working principle of the present invention is as follows: the control system turns on the air compression tower 7, and the external air is sucked into the air compression tower 7. After the air enters the air compression tower 7, it first enters the first-layer filter cone 81. The filter 811 on the filter cone 81 filters the large particles of impurities and dust in the air. The filtered air enters the next layer of filter cone 81. The next layer of filter cone 81 further filters the smaller particles of impurities and dust remaining in the air. The air passes through the filter cones 81 of each layer in turn until the impurities and dust in the air are filtered out. After that, the air enters the air compression device to achieve the purpose of multi-stage filtration of the air. The filtered impurities and dust remain in the filter 811. When the air passes through the filter cone 81, a small part of the air flows into the dust outlet 813. When this part of the airflow flows, it drives a part of the impurities and dust attached to the filter 811 to fall into the dust outlet 813, thereby achieving the self-cleaning purpose of the filter cone 81. The impurities and dust enter the dust removal pipe 823 from the dust outlet 813, and then flow into the dust outlet 813 on the next filter cone 81 from the dust removal port 824 at the bottom of the dust removal pipe 823, and then go down in sequence until the impurities and dust all fall into the dust removal pipe 823 at the bottom, and then flow out from the bottom dust removal pipe 823 and enter the external dust collecting box, thereby achieving the purpose of automatically removing and collecting the filtered impurities and dust.

[0046] With long-term use, impurities and dust will gradually adhere to the surface of the filter 811, and with the negative pressure suction of the air compression tower 7, many impurities and dust will adhere to the surface of the filter 811 under the action of suction during the filtering process, and it is difficult to slide off, which eventually causes the filter 811 to be blocked; when the filter 811 is blocked, the air cannot circulate normally, and the filter cone 81 overcomes the elastic force of the detection spring 831 and slides downward along the direction of the conduction rod 833 under the action of the negative pressure suction, and the iron core rod 812 on the filter cone 81 slides downward with it. After sliding down a certain distance, the iron core rod 812 enters the energized induction coil 832, and the induction coil 832 generates an induced electromotive force. The control system determines the distance that the iron core rod 812 enters the induction coil 832 by analyzing the changes in the induced electromotive force, thereby determining the displacement of the filter cone 81. The more serious the blockage of the filter 811, the greater the influence of the negative pressure suction, and the greater the displacement of the filter cone 81. The control system determines the blockage of the filter 811 accordingly and starts the adjustment motor 62.

[0047] The output shaft of the adjusting motor 62 drives the adjusting gear 63 to rotate, and the adjusting gear 63 drives the entire adjusting assembly 61 to rotate. Since the adjusting inclined plate 615 is provided with a slope, the distance between the adjusting inclined plate 615 and the vertical rod 655 changes with the rotation. The control system adjusts the distance between the inclined plate 615 and the vertical rod 655 by rotating and controlling according to the blockage degree of the filter 811. The more serious the blockage, the closer the distance between the adjusting inclined plate 615 and the vertical rod 655 is, until they are completely fitted. When the vertical rod 655 vibrates, the smaller the distance between the adjusting inclined plate 615 and the vertical rod 655, the greater the vibration transmission amount. As the distance increases, only large-amplitude vibration can generate sufficient displacement to be transmitted to the adjusting inclined plate 615; the conductive plate 611 rotates with the adjusting assembly 61. In the normal state, the vibration ball 834 is located in the empty slot 612 between the conductive plates 611. When the adjusting assembly 61 rotates, the empty slot 612 turns away from the vibrator position, and the conductive plate 611 rotates to the bottom of the vibration ball 834 and contacts the vibration ball 834.

[0048] When the air compression device is working, inevitable irregular vibration will be generated. The vibration of the air compression device is transmitted to the vibration ring 662 through the compressor barrel 661, so that the vibration ring 662 produces displacements in multiple directions following the vibration. The vibration ring 662 slides in the annular groove 6511 under the action of the sliding ball 663. Under the upper and lower constraints of the annular groove of the filter vibration housing 651, the vibration ring 662 can only produce horizontal sliding displacement relative to the annular groove 6511, and the vertical displacement caused by the vibration is transmitted to the filter vibration housing 651, so that the filter vibration housing 651 slides vertically in the air compression tower 7 along the direction of the spring telescopic rod 64. The oblique movement caused by the vibration is decomposed into horizontal and vertical displacements under the constraints of the filter vibration housing 651 and the annular groove 6511. The vertical movement of the filter vibration housing 651 drives the spring telescopic rod 64 to extend and retract, so that part of the vibration is absorbed by the spring telescopic rod 64 to achieve a silent effect, and the remaining vibration makes the filter The vibration housing 651 drives the vertical rod 655 to vibrate up and down. When the vibration ring 662 is vibrated and displaced horizontally, it drives the surrounding force transmission block 654 to move. The force transmission block 654 overcomes the elastic force of the horizontal spring 653 and drives the horizontal rod 652 to slide in the horizontal slide 6512. When the horizontal rod 652 slides, the first piston on the horizontal rod 652 compresses the medium in the compression chamber 6514. The compression chamber 6514 is pressurized to increase the internal pressure. Under the action of the pressure, the vertical rod 655 moves upward. When the first piston retreats in the compression chamber 6514, the space in the compression chamber 6514 increases and the pressure decreases, causing the vertical rod 655 to retract, thereby realizing the conversion of horizontal vibration into vertical displacement of the vertical rod 655, allowing the vertical rod 655 to vibrate by itself, and finally, under the action of the vibration filter 65, part of the vibration generated by the air compression device is absorbed, and the other part is converted into vertical vibration of the vertical rod 655 and the vibration filter housing 651.

[0049] When the adjusting inclined plate 615 and the vertical rod 655 are within the effective vibration transmission distance, the filter vibration housing 651 drives the vertical rod 655 to vibrate, and then cooperates with the self-vibration of the vertical rod 655, so that the adjusting inclined plate 615 is driven by the vertical rod 655 to vibrate, and the adjusting inclined plate 615 drives the conduction plate 611 on the top ring 617 to vibrate through the bottom ring 616 and the vibration rod 614, and the conduction plate 611 drives the conduction rod 833 to vibrate through the vibration ball 834, and the conduction rod 833 drives the filter cone 81 to vibrate, and the vibration causes the dust and impurities attached to the filter 811 to fall off quickly and fall into the dust collector 82 along the inclined surface of the filter 811, and the filter cone 81 drives the dust collector 82 to vibrate through the conduction rod 833, so that the impurities and dust collected in the dust collector 82 quickly fall into the external dust collecting box, thereby achieving the purpose of driving the filter 811 to clear the blockage through the self-vibration of the air compression device, and at the same time, the purpose of quickly cleaning the dust collector 82 is also achieved.

[0050] The filtered air is compressed by the air compressor, and after cooling, it is transported from the compressed air tower to the first molecular sieve tower 2. The control system increases the voltage of the first molecular sieve tower 2. Under the high-pressure environment, the speed at which the molecular sieve in the first molecular sieve tower 2 adsorbs oxygen and nitrogen changes. When the air passes through the molecular sieve, nitrogen and other gases are preferentially adsorbed by the molecular sieve, and oxygen quickly flows out of the pores of the molecular sieve and enters the gas storage tank. After that, the control system closes the first molecular sieve tower 2 and opens the second molecular sieve tower 3 at the same time. The second molecular sieve tower 3 takes over the first molecular sieve tower 2 to separate the oxygen in the air. After the high pressure inside the first molecular sieve tower 2 is lost, the adsorbed nitrogen and other gases are released and discharged. This cycle is repeated to achieve the preparation of high-concentration oxygen.

[0051] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and range of equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A silent medical oxygen concentrator with air filtration function, characterized in that: The medical oxygen generator comprises a base (5), a control box (1) is mounted on the base (5), a gas storage tank is integrated in the control box (1), a first molecular sieve tower (2) and a second molecular sieve tower (3) are mounted on the base (5), an air compression tower (7) is mounted on the base (5), the air compression tower (7) is connected to the inside of the first molecular sieve tower (2) and the second molecular sieve tower (3) respectively through pipelines, an air compression device is mounted in the air compression tower (7), the first molecular sieve tower (2) and the second molecular sieve tower (3) are both connected to the inside of the gas storage tank through pipelines, an air purification component (8) and a vibration reduction conduction component (6) are mounted in the air compression tower (7), and the air The compression device is located in the vibration reduction conduction component (6); a flexible pipe (4) is installed on the air purification component (8); the air purification component (8) and the vibration reduction conduction component (6) are connected via the flexible pipe (4); the air purification component (8) comprises a limit ring (84); a plurality of vibration dust removal components (83) are slidably installed on the limit ring (84); a plurality of filter cones (81) are slidably installed on the vibration dust removal components (83); a dust collector (82) is installed at the bottom end of the filter cone (81); a flexible pipe (4) is installed between the filter cone (81) and the dust collector (82); and a flexible pipe (4) is installed between the dust collector (82) and the vibration reduction conduction component (6); The vibration reduction transmission component (6) comprises an adjustment component (61) and an adjustment motor (62); an adjustment gear (63) is mounted on the output shaft of the adjustment motor (62); the adjustment gear (63) is meshed with the adjustment component (61) for transmission; The adjustment assembly (61) comprises an adjustment toothed ring (613) and a bottom ring (616); a plurality of vibration rods (614) are mounted on the bottom ring (616); the vibration rods (614) penetrate the adjustment toothed ring (613) and are mounted on a top ring (617); the adjustment toothed ring (613) is rotatably mounted in the air compression tower (7); the adjustment toothed ring (613) is meshed with the adjustment gear (63) for transmission; a plurality of conduction plates (611) are mounted on the top ring (617); empty grooves (612) are provided between the conduction plates (611); a plurality of adjustment inclined plates (615) are mounted on the bottom end of the bottom ring (616); and a slope is provided on the adjustment inclined plates (615).

2. The silent medical oxygen concentrator with air filtration function according to claim 1, characterized in that: The vibration reduction conduction component (6) further comprises a vibration filter (65), the vibration filter (65) being slidably mounted in the air compression tower (7), a plurality of spring telescopic rods (64) being mounted at the bottom end of the vibration filter (65), the bottom ends of the spring telescopic rods (64) being connected to the air compression tower (7), the adjustment component (61) being rotatably mounted in the air compression tower (7), the adjustment motor (62) being mounted in the air compression tower (7), a conductor (66) being slidably mounted in the vibration filter (65), an air compression device being integrated in the conductor (66), and a flexible pipe (4) being mounted between the conductor (66) and the dust collector (82).

3. The silent medical oxygen concentrator with air filtration function according to claim 2, characterized in that: The vibration filter (65) comprises a vibration filter housing (651), the vibration filter housing (651) being slidably mounted in an air compression tower (7), a spring telescopic rod (64) being mounted at the bottom end of the vibration filter housing (651), an annular slide groove (6511) being provided on the vibration filter housing (651), a compression chamber (6514) being provided in the vibration filter housing (651), a vertical slideway (6513) being communicated with the interior of the compression chamber (6514), a horizontal slideway (6512) being provided on the vibration filter housing (651), the horizontal slideway (6512) being communicated with the interior of the compression chamber (6514), and the vibration filter housing (651) being slidably connected to the conductor (66) via the annular slide groove (6511).

4. The silent medical oxygen concentrator with air filtering function according to claim 3, characterized in that: The vibration filter (65) further comprises a vertical rod (655) and a horizontal rod (652); a first piston is mounted on one end of the horizontal rod (652); the horizontal rod (652) is slidably mounted in a horizontal slideway (6512) via the first piston; a second piston is mounted on the bottom end of the vertical rod (655); the vertical rod (655) is slidably mounted in a vertical slideway (6513) via the second piston; the number of the vertical rods (655) corresponds to the number of the adjusting inclined plates (615); a force transmission block (654) is mounted on the other end of the horizontal rod (652); a horizontal spring (653) is mounted between the force transmission block (654) and the vibration filter housing (651).

5. The silent medical oxygen concentrator with air filtering function according to claim 3, characterized in that: The conductor (66) comprises a compressor barrel (661), an air compression device is integrated in the compressor barrel (661), a plurality of vibration rings (662) are installed on the compressor barrel (661), a ball slide groove (664) is provided at the top and bottom ends of the vibration ring (662), a plurality of sliding balls (663) are installed in the ball slide groove (664), the vibration ring (662) is slidably installed on the annular slide groove (6511) via the sliding balls (663), and a flexible pipe (4) is installed between the compressor barrel (661) and the dust collector (82).

6. The silent medical oxygen concentrator with air filtering function according to claim 5, characterized in that: A plurality of filter cones (81) are provided with filter screens (811) whose pores decrease from top to bottom, a plurality of iron core rods (812) are installed on the filter cone (81), and a dust outlet (813) is provided at the bottom end of the filter cone (81); the dust collector (82) comprises a dust removal pipe (823) and a connecting rod (822), a dust removal outlet (824) is provided at the bottom end of the dust removal pipe (823), a connecting piece (821) is installed at the top end of the dust removal pipe (823), and the connecting piece (821) is installed on the filter cone (81) via the connecting rod (822).

7. The silent medical oxygen concentrator with air filtration function according to claim 6, characterized in that: The vibration dust removal assembly (83) comprises a conduction rod (833), the filter cone (81) is slidably mounted on the conduction rod (833), an anti-dropping ring (835) is mounted on the conduction rod (833), the conduction rod (833) is slidably mounted on a limit ring (84), a detection ring (836) is mounted on the conduction rod (833), an induction coil (832) is mounted on the detection ring (836), a filter cone (81) is slidably mounted on the conduction rod (833), a detection spring (831) is mounted between the filter cone (81) and the detection ring (836), and a vibration ball (834) is mounted at the bottom end of the conduction rod (833).

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