Indoor photocatalytic air purifier

Abstract

The present invention relates to the technical field of air purification, specifically to an indoor photocatalytic air purifier, comprising a housing, a ventilation chamber is provided inside the housing, a driving mechanism for providing power is provided in the middle and bottom of the ventilation chamber, a water tank is fixedly installed on both sides of the top inner wall of the housing, an atomizing mechanism for humidifying the purified gas is provided in the upper part of the ventilation chamber in cooperation with the driving mechanism and the water tank, a purification mechanism for purifying the air is provided in the middle part of the ventilation chamber in cooperation with the driving mechanism, and a dust removal mechanism for cleaning dust is provided in cooperation with the driving mechanism in the middle and lower part of the ventilation chamber. After the fan inhales the air, the arc-shaped metal plate and the photocatalytic plate in the purification tube remove dust and purify the air, and the water flow is transported to the fixed plate for evaporation and atomization through the elastic airbag, thereby humidifying the air, and at the same time, the dust removal of the inner wall of the purification tube is completed by the downward movement of the dust removal ring.

Description

Technical Field

[0001] The invention relates to the technical field of air purification, in particular to an indoor photocatalytic air purifier. Background Art

[0002] People have always believed that the most serious air pollution is outdoors. In fact, the indoor environment of buildings such as offices, homes, restaurants, theaters, Internet clubs, and dance halls has a much greater impact on people's health than the outdoor environment. About 80% of a person's life is spent indoors, so the quality of the indoor environment directly affects human health. In reality, the indoor air quality is far inferior to the outdoor atmospheric environment.

[0003] The existing patent (Announcement No.: CN108889120A) is a photocatalytic air purifier, including a housing, a partition net, a photocatalyst and a light source. Among them: at least one air inlet is opened at the top of the housing, and at least one air outlet is opened at the bottom of the housing. The partition net is a mesh structure, and the partition net is arranged inside the housing. An outer cavity is formed between the partition net and the side wall of the housing. The partition net, the top of the housing and the bottom of the housing enclose an inner cavity. The air inlet is arranged at the inner cavity, and the air outlet is arranged at the outer cavity. The photocatalyst is arranged in the outer cavity; the photocatalyst is a BiOBr / BiOI composite photocatalyst loaded on ceramic. The light source is arranged at the bottom and / or top of the housing and is located inside the housing.

[0004] However, this solution does not actively inhale outside air when working, resulting in a small amount of air that can be purified and low purification efficiency. The structure of this solution is too simple, which can easily cause equipment damage, and the catalyst is easily exposed to the outside world, which is harmful to the human body.

[0005] Therefore, an indoor photocatalytic air purifier is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide an indoor photocatalytic air purifier. After the air is sucked in by a fan, the arc-shaped metal plate and the photocatalytic plate in the purification tube remove dust and purify the air. The water flow is transported to the fixed plate for evaporation and atomization through the elastic airbag, thereby humidifying the air. The dust removal of the inner wall of the purification tube is completed by moving the dust removal ring downward, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An indoor photocatalytic air purifier comprises a casing, wherein a ventilation cavity is provided inside the casing, a purification pipe is fixedly installed in the middle of the ventilation cavity, a driving mechanism for providing power is provided in the middle and bottom of the ventilation cavity, a circular plate is fixedly installed on the inner top of the casing, a sliding cavity is opened inside the circular plate, a water tank is fixedly installed on both sides of the top inner wall of the casing, an atomizing mechanism for humidifying purified gas cooperating with the driving mechanism and the water tank is provided at the upper part of the ventilation cavity, a second rotating shaft is rotatably connected to the middle part of the ventilation cavity, a purification mechanism for purifying air cooperating with the driving mechanism is provided in the middle part of the ventilation cavity, and a dust removal mechanism for cleaning dust cooperating with the driving mechanism is provided in the middle and lower parts of the ventilation cavity.

[0009] After the fan inhales the air, the arc-shaped metal plate and photocatalytic plate in the purification tube remove dust and purify the air. The elastic airbag transports the water flow to the fixed plate for evaporation and atomization, thereby humidifying the air. The dust removal of the inner wall of the purification tube is completed by the downward movement of the dust removal ring.

[0010] Preferably, the driving mechanism includes a double-headed motor fixedly mounted on the bottom of the ventilation chamber, the output ends of the double-headed motor are fixedly connected to the motor shaft, the bottom of the ventilation chamber is symmetrically rotatably connected to the first rotating shaft on both sides, the opposite ends of the two first rotating shafts are fixedly connected to the fans, the two first rotating shafts are transmission connected to the motor shaft through belts, a plurality of fan blades are fixedly connected to the middle part of the second rotating shaft, and a mounting block is fixedly mounted on the lower end of the ventilation chamber, and the mounting block is transmission connected to the lower end of the second rotating shaft.

[0011] After the double-head motor is energized, the double-head motor drives the fan to rotate. The fan draws outside air into the casing when it works. After the air flow enters, it generates pressure on the wind shield, pushing the two wind shields to rotate. The wind shield squeezes the first spring, and the two first springs contract. An upward air inlet is formed at the upper ends of the two wind shields. The air flow passes through the wind shield and moves upward along the air inlet. When the air flow passes through the purification tube and moves upward to the fan blades, it impacts multiple fan blades. The impact force generated is sufficient to push the fan blades to rotate. Since the fan blades are fixedly connected to the second rotating shaft, the fan blades drive the second rotating shaft to rotate.

[0012] Preferably, the purification mechanism comprises a photocatalytic plate arranged in the middle of the ventilation cavity, a light-emitting element is provided on the lower surface of the photocatalytic plate, the photocatalytic plate is fixedly connected to the purification pipe, and an arc-shaped metal plate is symmetrically fixedly installed on the outside of the purification pipe.

[0013] After the fan draws in the outside air, the arc-shaped metal plates on both sides of the purification tube are energized at the same time. After the arc-shaped metal plates are energized, an electric field will be formed inside the purification tube. When the air flow enters the purification tube, the dust in the air will carry positive and negative charges under the action of the electric field, and will be adsorbed on the inner wall of the purification tube through the attraction of the two poles of the electric field. After the air is removed from the dust, it continues to move upward, and the light-emitting elements on the lower surface of the photocatalytic plate are energized to emit light. The photocatalytic plate begins to catalyze when it encounters light. When the air flows through the photocatalytic plate, the photocatalytic plate will absorb and convert harmful substances in the air such as formaldehyde.

[0014] Preferably, the atomization mechanism includes a fixed plate arranged on the upper part of the ventilation chamber, and a plurality of groups of metal wires are provided on the upper surface of the fixed plate, each group of the metal wires includes two metal wires inside, the upper end of the second rotating shaft extends into the sliding chamber and is fixedly connected to an eccentric wheel, elastic air bags are fixedly connected to both sides of the sliding chamber, one side of the two elastic air bags is fixedly connected to a piston rod, one side of the two piston rods is fixedly connected to a U-shaped block, the upper and lower ends of the two U-shaped blocks are fixedly connected to pins, the middle parts of the two pins are rotatably connected to rollers, fixed blocks are symmetrically fixedly installed on both sides of the middle part of the sliding chamber, the fixed blocks are slidably connected to the piston rod, and the outer edges of the two rollers are close to the outer wall of the eccentric wheel.

[0015] The purified air flows through the photocatalytic plate and continues to move upward. The air flow pushes multiple blades to rotate, and the blades drive the second rotating shaft to rotate. The rotation of the second rotating shaft drives the eccentric wheel to make eccentric movement inside the sliding cavity. When the eccentric wheel rotates, due to the asymmetry of the eccentric wheel, one side of the rollers on both sides will be squeezed and the other side will not be squeezed. Therefore, the rollers on both sides are in a cycle of squeezing and not squeezing when the eccentric wheel rotates. The roller on one side is squeezed to produce pressure on the piston rod on one side, thereby squeezing the elastic airbag on one side. At this time, the squeezing of the roller on the other side is decreasing, and the elastic airbag on the other side is in a state of compression to expansion. The water flow inside the compressed elastic airbag will be discharged. Due to the limitation of the one-way valve, it can only be discharged from the two one-way valves on one side. The water is discharged from the lower one-way valve of the one-way valve, and then flows to the fixed plate through the thin water pipes on both sides of the casing. At the same time, the elastic airbag on the other side is in a state of transition from compression to expansion, and suction is generated inside the elastic airbag. Due to the limitation of the one-way valve, water can only be absorbed from the water tank from the upper one-way valve of the two one-way valves on the other side. The elastic airbags on both sides can absorb and drain water. When the eccentric wheel rotates, a cycle is formed in which one side of the elastic airbag absorbs water and the other side drains water, one side of the elastic airbag drains water and the other side absorbs water. The discharged water flows through the thin water pipe to the fixed plate, and the metal wire on the fixed plate generates high temperature and high pressure when energized. The high temperature and high pressure will evaporate the water and atomize it when it meets water. The mist will mix with the purified air flow to humidify the air.

[0016] Preferably, the ash removal mechanism includes an ash removal ring arranged inside the purification tube, a three-pointed star-shaped connecting rod is fixedly installed in the middle of the ash removal ring, the connecting rod is sleeved on the outer edge of the second rotating shaft, a second spring is fixedly installed on the top of the purification tube, the lower end of the second spring is fixedly connected to the connecting rod, and ash discharge channels are symmetrically distributed on both sides of the bottom of the ventilation cavity, the upper ends of the two ash discharge channels are rotatably connected to a wind shield plate on one side away from the mounting block, the middle of the opposite side of the two wind shield plates are fixedly connected to a first spring, and the other ends of the two first springs are fixedly connected to the mounting block.

[0017] After the air enters the purification tube, the impact force generated by the air flow is large enough to push the dust removal ring upward. At the same time, the second spring will be energized, and the energized second spring will contract. The second spring will also pull the dust removal ring upward until the impact force of the air flow is balanced with the elastic force of the second spring and the gravity of the dust removal ring. The dust removal ring will stop moving upward. At this time, the dust removal ring will move up to the upper part of the purification tube. When the double-head motor is powered off, the fan stops rotating and there is no air flow in the purification tube. Because there is no impact force of the air flow, the dust removal ring will move downward under the elastic force of the second spring. Move, at this time the arc-shaped metal plate is still energized, the dust is adsorbed on the inner wall of the purification tube, the ash removing ring scrapes the dust adsorbed on the inner wall of the purification tube and moves downward together, and then the ash removing ring moves all the way to the upper side of the air inlet. At this time, there is no effect of the electric field, and the dust will fall into the ash discharge ducts on both sides below the purification tube, and be discharged from the ash discharge ports on both sides of the bottom of the ventilation cavity. When no air flow enters, the wind shield will also rotate away from the mounting block due to the elastic force of the first spring and then close the air inlet, which is conducive to the dust entering the ash discharge duct and preventing it from re-entering the air.

[0018] Preferably, one end of the two elastic airbags is fixedly connected to two one-way valves, the upper one-way valve only allows water to flow from the water tank into the elastic airbag, and the lower one-way valve only allows water to flow from the elastic airbag into the capillary water tube.

[0019] When the elastic airbag is compressed, the water in the airbag will be discharged. Due to the action of the one-way valve, the water can only flow out from the one-way valve at the lower end, and then flow into the fixed plate through the thin water pipe to be evaporated by high temperature and high pressure. The elastic airbag on the other side is in the process of compression to expansion, which will generate suction. Due to the action of the one-way valve, water will flow from the water tank through the one-way valve at the upper end into the airbag.

[0020] Preferably, a controller is installed at the inner bottom of the casing, and the double-headed motor, the arc-shaped metal plate, the second spring, the light-emitting element and the metal wire are all electrically connected to the controller.

[0021] When the double-head motor is energized, it will drive the fan to rotate and inhale air. When the arc-shaped metal plate is energized, an electric field will be formed. When the second spring is energized, it will be compressed. When the light-emitting element is energized, it will emit light to prompt the photocatalytic plate to catalyze. When the metal wire is energized, high pressure and high temperature will be generated.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The fan draws in air. When the air flows through the purification tube and moves upward to the fan blades, it generates impact force on the multiple fan blades, pushing the fan blades to rotate, and then the fan blades drive the second shaft to rotate.

[0024] 2. The arc-shaped metal plate is electrified to form an electric field inside the purification tube. The dust in the air will be charged under the action of the electric field and then adsorbed on the inner wall of the purification tube. The air flows through the photocatalytic plate, which absorbs and converts harmful substances in the air such as formaldehyde.

[0025] 3. The elastic air bags on both sides are in a squeezed and expanded state when the eccentric wheel rotates, so that the water flows through the fine water pipe to reach the fixed plate. The metal wires on the fixed plate generate high temperature and high pressure after being energized, which evaporates the water on the fixed plate to form mist for humidification.

[0026] 4. When air enters the purification tube, it pushes the dust removal ring upward. The second spring will be energized and compressed. The second spring will continue to compress until the balanced dust removal ring stops moving. When the fan stops working, the dust removal ring moves downward under the elastic force of the second spring. While moving, it scrapes off the dust adsorbed on the inner wall of the purification tube and discharges it through the dust discharge ports on both sides of the bottom of the ventilation cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the internal structure of the purification tube of the present invention;

[0028] Figure 2 It is a cross-sectional view of the internal structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the internal structure of the fixing plate of the present invention;

[0030] Figure 4 It is an enlarged view of the structure at A of the present invention;

[0031] Figure 5 is a side view of the present invention;

[0032] Figure 6 It is an enlarged view of the structure at B of the present invention.

[0033] In the figure: 1. casing; 2. ventilation chamber; 3. double-headed motor; 4. first rotating shaft; 5. fan; 6. first spring; 7. ash discharge channel; 8. elastic airbag; 9. arc-shaped metal plate; 10. second spring; 11. second rotating shaft; 12. ash removal ring; 13. purification tube; 14. photocatalytic plate; 15. fan blade; 16. fixing plate; 17. metal wire; 18. eccentric wheel; 19. roller; 20. latch; 21. U-shaped block; 22. piston rod; 23. fixing block; 24. sliding chamber; 25. water tank; 26. one-way valve; 27. wind shield; 28. connecting rod. DETAILED DESCRIPTION

[0034] 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.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] See also Figures 1 to 6 The present invention provides an indoor photocatalytic air purifier, and the technical solution is as follows:

[0038] An indoor photocatalytic air purifier comprises a casing 1, wherein a ventilation chamber 2 is provided inside the casing 1, a purification pipe 13 is fixedly installed in the middle of the ventilation chamber 2, a driving mechanism for providing power is provided in the middle and bottom of the ventilation chamber 2, a circular plate is fixedly installed on the inner top of the casing 1, a sliding chamber 24 is opened inside the circular plate, water tanks 25 are fixedly installed on both sides of the top inner wall of the casing 1, an atomizing mechanism for humidifying purified gas cooperating with the driving mechanism and the water tank 25 is provided on the upper part of the ventilation chamber 2, a second rotating shaft 11 is rotatably connected to the middle part of the ventilation chamber 2, a purification mechanism for purifying air cooperating with the driving mechanism is provided in the middle part of the ventilation chamber 2, and a dust removal mechanism for cleaning dust cooperating with the driving mechanism is provided in the middle and lower part of the ventilation chamber 2.

[0039] After the fan 5 is started, suction is generated to draw in the outside air. The arc-shaped metal plate 9 and the photocatalytic plate 14 in the purification tube 13 remove dust and purify the air. The water flow is transported to the fixed plate 16 through the elastic airbag 8 for evaporation and atomization, thereby humidifying the air. The dust removal of the inner wall of the purification tube 13 is completed by the downward movement of the dust removal ring 12.

[0040] As an embodiment of the present invention, refer to Figure 2 and Figure 5 The driving mechanism includes a double-headed motor 3 fixedly mounted on the bottom of the ventilation chamber 2, the output end of the double-headed motor 3 is fixedly connected to the motor shaft, the bottom of the ventilation chamber 2 is symmetrically rotatably connected to the first rotating shaft 4 on both sides, the opposite ends of the two first rotating shafts 4 are fixedly connected to the fans 5, the two first rotating shafts 4 are connected to the motor shaft through belts, a plurality of fan blades 15 are fixedly connected to the middle of the second rotating shaft 11, and a mounting block is fixedly mounted on the lower end of the ventilation chamber 2, and the mounting block is rotatably connected to the lower end of the second rotating shaft 11.

[0041] After the double-headed motor 3 is energized, the double-headed motor 3 drives the fan 5 to rotate. The fan 5 works to suck outside air into the casing 1. After the air flow enters, pressure is generated on the wind shield 27, pushing the two wind shields 27 to rotate. The wind shield 27 squeezes the first spring 6. The two first springs 6 shrink, and an upward air inlet is formed at the upper ends of the two wind shields 27. The air flow passes through the wind shield 27 and moves upward along the air inlet. When the air flow passes through the purification tube 13 and moves upward to the fan blades 15, it impacts the multiple fan blades 15. The impact force generated is sufficient to push the fan blades 15 to rotate. Since the fan blades 15 are fixedly connected to the second rotating shaft 11, the fan blades 15 drive the second rotating shaft 11 to rotate.

[0042] As an embodiment of the present invention, refer to Figure 2 The purification mechanism includes a photocatalytic plate 14 arranged in the middle of the ventilation cavity 2, and a light-emitting element is provided on the lower surface of the photocatalytic plate 14. The photocatalytic plate 14 is fixedly connected to the purification pipe 13, and two arc-shaped metal plates 9 are symmetrically fixedly installed on the outside of the purification pipe 13.

[0043] After the fan 5 inhales the outside air, the arc-shaped metal plates 9 on both sides of the purification tube 13 are energized at the same time. After the arc-shaped metal plates 9 are energized, an electric field will be formed in the purification tube 13. When the air flow enters the purification tube 13, the dust in the air will carry positive and negative charges under the action of the electric field, and will be adsorbed on the inner wall of the purification tube 13 through the attraction of the two poles of the electric field. After the dust is removed, the air continues to move upward, and the light-emitting elements on the lower surface of the photocatalytic plate 14 are energized to emit light. The photocatalytic plate 14 begins to catalyze when it encounters light. When the air flows through the photocatalytic plate 14, the photocatalytic plate 14 will absorb and convert harmful substances in the air, such as formaldehyde.

[0044] As an embodiment of the present invention, refer to Figure 2 , Figure 3 and Figure 4 The atomization mechanism includes a fixed plate 16 arranged on the upper part of the ventilation chamber 2, and a plurality of groups of metal wires 17 are provided on the upper surface of the fixed plate 16, each group of metal wires 17 includes two metal wires inside, the upper end of the second rotating shaft 11 extends into the sliding chamber 24 and is fixedly connected to an eccentric wheel 18, both sides of the sliding chamber 24 are fixedly connected to elastic air bags 8, one side of the two elastic air bags 8 are fixedly connected to piston rods 22, one side of the two piston rods 22 are fixedly connected to U-shaped blocks 21, the upper and lower ends of the two U-shaped blocks 21 are fixedly connected to latches 20, the middle parts of the two latches 20 are rotatably connected to rollers 19, fixed blocks 23 are symmetrically fixedly installed on both sides of the middle part of the sliding chamber 24, the fixed blocks 23 are slidably connected to the piston rod 22, and the outer edges of the two rollers 19 are close to the outer wall of the eccentric wheel 18.

[0045] The purified air flow continues to move upward through the photocatalytic plate 14, and the air flow pushes the multiple blades 15 to rotate, and the blades 15 drive the second rotating shaft 11 to rotate, and the rotation of the second rotating shaft 11 drives the eccentric wheel 18 to rotate inside the sliding cavity 24. When the eccentric wheel 18 rotates, due to the asymmetry of the eccentric wheel 18, one side of the rollers 19 and the other side are squeezed. No squeezing, so the rollers 19 on both sides are in a cycle of squeezing and no squeezing when the eccentric wheel 18 rotates. The rollers 19 on one side are squeezed to produce pressure on the piston rod 22 on one side, thereby squeezing the elastic airbag 8 on one side. At this time, the squeezing of the rollers 19 on the other side is decreasing, and the elastic airbag 8 on the other side is in a state of compression to opening, and the internal water flow of the compressed elastic airbag 8 will be discharged. Due to the restriction of the one-way valve 26, it can only be discharged from the one-way valve 26 at the lower end of one side. Out, and then through the fine water pipes arranged on both sides of the casing 1 to stay on the fixed plate 16, at the same time, the elastic airbag 8 on the other side is in a state from compression to expansion, and suction will be generated inside the elastic airbag 8. Due to the limitation of the one-way valve 26, water can only be absorbed from the water tank 25 from the one-way valve 26 at the upper end of the other side. The elastic airbags 8 on both sides can absorb water and drain water. When the eccentric wheel 18 rotates, a cycle is formed in which the elastic airbag 8 on one side absorbs water and the elastic airbag 8 on the other side drains water, and the elastic airbag 8 on one side drains water and the elastic airbag 8 on the other side absorbs water. The discharged water flows through the fine water pipe to the fixed plate 16, and the metal wire 17 on the fixed plate 16 generates high temperature and high pressure after being energized. The high temperature and high pressure will evaporate and atomize the water after encountering water, and the mist will be mixed with the purified air flow, and then be carried out of the device through the upper air outlet by the air flow, thereby humidifying the outside air.

[0046] As an embodiment of the present invention, refer to Figure 2 and Figure 6 The ash removal mechanism includes an ash removal ring 12 arranged inside the purification pipe 13, a three-pointed star-shaped connecting rod 28 is fixedly installed in the middle of the ash removal ring 12, and the connecting rod 28 is sleeved on the outer edge of the second rotating shaft 11. A second spring 10 is fixedly installed on the top of the purification pipe 13, and the lower end of the second spring 10 is fixedly connected to the connecting rod 28. Ash discharge channels 7 are symmetrically distributed on both sides of the bottom of the ventilation chamber 2. The upper ends of the two ash discharge channels 7 are rotatably connected to the side away from the mounting block. The middle of the opposite side of the two windshields 27 are fixedly connected to the first spring 6, and the other ends of the two first springs 6 are fixedly connected to the mounting block.

[0047] After the air enters the purification tube 13, the impact force generated by the air flow is large enough to push the ash removal ring 12 to move upward, and the second spring 10 will be energized at the same time. The energized second spring 10 will be compressed, and the second spring 10 will press on and pull the ash removal ring 12 to move upward until the impact force of the air flow is balanced with the elastic force of the second spring 10 and the gravity of the ash removal ring 12, and the ash removal ring 12 will stop moving upward. At this time, the ash removal ring 12 will move up to the upper part of the purification tube 13. When the double-headed motor 3 is powered off, the fan 5 stops rotating and there is no air flow in the purification tube 13. Because there is no impact force of the air flow, the ash removal ring 12 will be under the second spring 10. The dust is adsorbed on the inner wall of the purification tube 13 and the dust removal ring 12 scrapes the dust adsorbed on the inner wall of the purification tube 13 and moves downward together. Then the dust removal ring 12 moves all the way to the upper side of the air inlet. At this time, there is no effect of the electric field. The dust will fall into the ash discharge channels 7 on both sides below the purification tube 13 and be discharged from the ash discharge ports on both sides of the bottom of the ventilation chamber 2. When there is no air flow entering, the wind shield 27 will also rotate in the direction away from the mounting block due to the elastic force of the first spring 6 and then close the air inlet, which is conducive to the dust entering the ash discharge channel 7 and preventing it from re-entering the air.

[0048] As an embodiment of the present invention, refer to Figure 2 and Figure 6 One end of the elastic airbag 8 is fixedly connected to two one-way valves 26. The upper one-way valve 26 only allows water to flow from the water tank 25 into the elastic airbag 8, and the lower one-way valve 26 only allows water to flow from the elastic airbag 8 into the capillary water tube.

[0049] When the elastic airbag 8 is compressed, the water in the elastic airbag 8 will be discharged. Due to the action of the one-way valve 26, the water can only flow out from the one-way valve 26 at the lower end, and then flow into the fixed plate 16 through the fine water pipe to be evaporated by high temperature and high pressure. The elastic airbag 8 on the other side is in the process of compression to opening, which will generate suction. Due to the action of the one-way valve 26, the water flow will enter the elastic airbag 8 from the water tank 25 through the one-way valve 26 at the upper end.

[0050] As an embodiment of the present invention, refer to Figure 2 A controller is installed at the inner bottom of the housing 1, and the double-headed motor 3, the arc-shaped metal plate 9, the second spring 10, the light-emitting element and the metal wire 17 are all electrically connected to the controller.

[0051] When the double-headed motor 3 is energized, it will drive the fan 5 to rotate and inhale air. When the arc-shaped metal plate 9 is energized, an electric field will be formed. When the second spring 10 is energized, it will be compressed. When the light-emitting element is energized, it will emit light to prompt the photocatalytic plate 14 to catalyze. When the metal wire 17 is energized, high pressure and high temperature will be generated.

[0052] Working principle: after the double-headed motor 3 is powered on, the double-headed motor 3 drives the fan 5 to rotate, and the fan 5 works to suck the outside air into the casing 1. After the air flow enters, it generates pressure on the wind shield 27, pushing the two wind shields 27 to rotate, and the wind shield 27 squeezes the first spring 6. The two first springs 6 shrink, and the upper ends of the two wind shields 27 will form an upward air inlet. The air flow passes through the wind shield 27 and moves upward along the air inlet. When the air flow passes through the purification tube 13 and moves upward to the fan blades 15, it impacts the multiple fan blades 15. The impact force generated is enough to push the fan blades 15 to rotate. Since the fan blades 15 are fixedly connected to the second rotating shaft 11, the fan The blades 15 drive the second rotating shaft 11 to rotate. After the fan 5 inhales the outside air, the arc-shaped metal plates 9 on both sides of the purification tube 13 are energized at the same time. After the arc-shaped metal plates 9 are energized, an electric field will be formed in the purification tube 13. When the air flow enters the purification tube 13, the dust in the air will carry positive and negative charges under the action of the electric field, and will be adsorbed on the inner wall of the purification tube 13 through the attraction of the two poles of the electric field. After the dust is removed, the air continues to move upward, and the light-emitting elements on the lower surface of the photocatalytic plate 14 are energized to emit light. The photocatalytic plate 14 begins to catalyze when it encounters light. The air flow passes through the photocatalytic plate 14, and the photocatalytic plate 14 will absorb and convert harmful substances in the air such as formaldehyde. The purified air flow continues to move upward through the photocatalytic plate 14, and the air flow pushes the multiple blades 15 to rotate, and the blades 15 drive the second rotating shaft 11 to rotate, and the rotation of the second rotating shaft 11 drives the eccentric wheel 18 to rotate inside the sliding cavity 24. When the eccentric wheel 18 rotates, due to the asymmetry of the eccentric wheel 18, one side of the rollers 19 and the other side are squeezed. No squeezing, so the rollers 19 on both sides are in a cycle of squeezing and no squeezing when the eccentric wheel 18 rotates. The rollers 19 on one side are squeezed to produce pressure on the piston rod 22 on one side, thereby squeezing the elastic airbag 8 on one side. At this time, the squeezing of the rollers 19 on the other side is decreasing, and the elastic airbag 8 on the other side is in a state of compression to opening, and the internal water flow of the compressed elastic airbag 8 will be discharged. Due to the restriction of the one-way valve 26, it can only be discharged from the lower one-way valve of the two one-way valves 26 on one side. 26 is discharged, and then remains on the fixed plate 16 through the fine water pipes arranged on both sides of the casing 1. At the same time, the elastic airbag 8 on the other side is in a state from compression to expansion, and suction will be generated inside the elastic airbag 8. Due to the limitation of the one-way valve 26, water can only be absorbed from the water tank 25 from the upper one-way valve 26 of the two one-way valves 26 on the other side. The elastic airbags 8 on both sides can absorb water and drain water. When the eccentric wheel 18 rotates, a cycle is formed in which the elastic airbag 8 on one side absorbs water and the elastic airbag 8 on the other side drains water, and the elastic airbag 8 on one side drains water and the elastic airbag 8 on the other side absorbs water. The discharged water flow reaches the fixed plate 16 through the fine water pipe, and the metal wire 17 on the fixed plate 16 generates high temperature and high pressure after being energized. The high temperature and high pressure will evaporate and atomize the water when it meets water, and the mist will mix with the purified air flow, and then be carried out of the device through the upper air outlet by the air flow, thereby humidifying the outside air.After the air enters the purification tube 13, the impact force generated by the air flow is large enough to push the ash removal ring 12 to move upward, and the second spring 10 will be energized at the same time. The energized second spring 10 will be compressed, and the second spring 10 will press on and pull the ash removal ring 12 to move upward until the impact force of the air flow is balanced with the elastic force of the second spring 10 and the gravity of the ash removal ring 12, and the ash removal ring 12 will stop moving upward. At this time, the ash removal ring 12 will move up to the upper part of the purification tube 13. When the double-headed motor 3 is powered off, the fan 5 stops rotating and there is no air flow in the purification tube 13. Because there is no impact force of the air flow, the ash removal ring 12 will be under the second spring 10. The dust is adsorbed on the inner wall of the purification tube 13 and the dust removal ring 12 scrapes the dust adsorbed on the inner wall of the purification tube 13 and moves downward together. Then the dust removal ring 12 moves all the way to the upper side of the air inlet. At this time, there is no effect of the electric field. The dust will fall into the ash discharge channels 7 on both sides below the purification tube 13 and be discharged from the ash discharge ports on both sides of the bottom of the ventilation chamber 2. When there is no air flow entering, the wind shield 27 will also rotate in the direction away from the mounting block due to the elastic force of the first spring 6 and then close the air inlet, which is conducive to the dust entering the ash discharge channel 7 and preventing it from re-entering the air. When the elastic airbag 8 is compressed, the water in the elastic airbag 8 will be discharged. Due to the action of the one-way valve 26, the water can only flow out from the one-way valve 26 at the lower end of one side, and then flow into the fixed plate 16 through the fine water pipe to be evaporated by high temperature and high pressure. The elastic airbag 8 on the other side is in the process of compression to opening, which will generate suction. Due to the action of the one-way valve 26, the water will flow from the water tank 25 through the one-way valve 26 at the upper end of the other side into the elastic airbag 8. When the double-headed motor 3 is energized, it will drive the fan 5 to rotate and inhale air. When the arc-shaped metal plate 9 is energized, an electric field will be formed. When the second spring 10 is energized, it will be compressed. When the light-emitting element is energized, it will emit light to promote the catalysis of the photocatalytic plate 14. When the metal wire 17 is energized, it will generate high pressure and high temperature.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An indoor photocatalytic air purifier, comprising a housing (1), characterized in that: The casing (1) is provided with a ventilation chamber (2) inside, a purification pipe (13) is fixedly installed in the middle of the ventilation chamber (2), a driving mechanism for providing power is provided in the middle and bottom of the ventilation chamber (2), a circular plate is fixedly installed on the inner top of the casing (1), a sliding chamber (24) is opened inside the circular plate, water tanks (25) are fixedly installed on both sides of the top inner wall of the casing (1), an atomizing mechanism for humidifying the purified gas cooperating with the driving mechanism and the water tank (25) is provided at the upper part of the ventilation chamber (2), a second rotating shaft (11) is rotatably connected to the middle of the ventilation chamber (2), a purification mechanism for purifying air cooperating with the driving mechanism is provided in the middle of the ventilation chamber (2), and a dust removal mechanism for cleaning dust cooperating with the driving mechanism is provided in the middle and lower parts of the ventilation chamber (2); The driving mechanism comprises a double-headed motor (3) fixedly mounted on the bottom of the ventilation chamber (2), the output ends of the double-headed motor (3) are fixedly connected to the motor shaft, the bottom of the ventilation chamber (2) is symmetrically rotatably connected to the first rotating shaft (4) on both sides, the opposite ends of the two first rotating shafts (4) are fixedly connected to the fan (5), the two first rotating shafts (4) are connected to the motor shaft through belt transmission, the middle part of the second rotating shaft (11) is fixedly connected to a plurality of fan blades (15), the lower end of the ventilation chamber (2) is fixedly mounted with a mounting block, and the mounting block is rotatably connected to the lower end of the second rotating shaft (11); The purification mechanism comprises a photocatalytic plate (14) arranged in the middle of the ventilation cavity (2), a light-emitting element is provided on the lower surface of the photocatalytic plate (14), and two arc-shaped metal plates (9) are symmetrically fixedly mounted on the outside of the purification tube (13); The atomizing mechanism comprises a fixing plate (16) arranged on the upper part of the ventilation chamber (2), a plurality of groups of metal wires (17) are arranged on the upper surface of the fixing plate (16), each group of the metal wires (17) comprises two metal wires inside, the upper end of the second rotating shaft (11) extends into the sliding chamber (24) and is fixedly connected to an eccentric wheel (18), both sides of the sliding chamber (24) are fixedly connected to elastic air bags (8), and one side of the two elastic air bags (8) is fixedly connected to a piston rod (22), one side of the two piston rods (22) is fixedly connected with a U-shaped block (21), the upper and lower ends of the two U-shaped blocks (21) are fixedly connected with a latch (20), the middle parts of the two latches (20) are rotatably connected with a roller (19), and fixed blocks (23) are symmetrically fixedly installed on both sides of the middle part of the sliding cavity (24), the fixed blocks (23) are slidably connected to the piston rod (22), and the outer edges of the two rollers (19) are closely attached to the outer wall of the eccentric wheel (18); Two one-way valves (26) are fixedly mounted on one end of the two elastic airbags (8), the one-way valve (26) at the upper end only allows water to flow from the water tank (25) into the elastic airbag (8), and the one-way valve (26) at the lower end only allows water to flow from the elastic airbag (8) into the capillary water pipe; A controller is installed at the inner bottom of the housing (1), and the double-headed motor (3), the arc-shaped metal plate (9), the second spring (10), the light-emitting element and the metal wire (17) are all electrically connected to the controller; The ash removal mechanism comprises an ash removal ring (12) arranged inside the purification tube (13), a three-pointed star-shaped connecting rod (28) is fixedly installed in the middle of the ash removal ring (12), and the connecting rod (28) is sleeved on the outer edge of the second rotating shaft (11), a second spring (10) is fixedly installed at the top of the purification tube (13), and the lower end of the second spring (10) is fixedly connected to the connecting rod (28), and ash discharge channels (7) are symmetrically distributed on both sides of the bottom of the ventilation cavity (2), and the upper ends of the two ash discharge channels (7) are rotatably connected to the side away from the mounting block. The middle of the opposite side of the two windshields (27) are fixedly connected to the first spring (6), and the other ends of the two first springs (6) are fixedly connected to the mounting block; The purified air flows through the photocatalytic plate (14) and continues to move upward, and the air flows push the plurality of blades (15) to rotate, and the blades (15) drive the second rotating shaft (11) to rotate, and the rotation of the second rotating shaft (11) drives the eccentric wheel (18) to rotate inside the sliding cavity (24). When the eccentric wheel (18) rotates, due to the asymmetry of the eccentric wheel (18), one side of the rollers (19) on both sides is squeezed and the other side is not squeezed, so that the rollers (19) on both sides are in the eccentric wheel. When the heart wheel (18) rotates, it is in a cycle of squeezing and not squeezing. The roller (19) on one side is squeezed to generate pressure on the piston rod (22) on one side, thereby squeezing the elastic airbag (8) on one side. At this time, the squeezing of the roller (19) on the other side is reduced, and the elastic airbag (8) on the other side is in a state of being compressed to being opened. The internal water flow of the compressed elastic airbag (8) will be discharged. Due to the limitation of the one-way valve (26), the water can only be discharged from the lower one-way valve (26) of the two one-way valves (26) on one side. The water is discharged from the one-way valve (26) and then flows to the fixed plate (16) through the fine water pipes arranged on both sides of the housing (1). At the same time, the elastic airbag (8) on the other side is in a state from being compressed to being expanded, and suction is generated inside the elastic airbag (8). Due to the limitation of the one-way valve (26), water can only be sucked from the water tank (25) through the upper one-way valve (26) of the two one-way valves (26) on the other side. The elastic airbags (8) on both sides can absorb and discharge water, and when the eccentric wheel (18) rotates, a suction force is generated. The elastic airbag (8) on one side absorbs water while the elastic airbag (8) on the other side drains water, and the elastic airbag (8) on one side drains water while the elastic airbag (8) on the other side absorbs water in a cycle, and the discharged water flows through the fine water pipe to reach the fixed plate (16), and the metal wire (17) on the fixed plate (16) generates high temperature and high pressure after being energized. When the high temperature and high pressure meet water, the water will evaporate and atomize, and the mist will mix with the purified air flow, and then be carried out of the device through the upper air outlet by the air flow, thereby humidifying the outside air; After the air enters the purification tube (13), the impact force generated by the air flow is large enough to push the dust removal ring (12) to move upwards. At the same time, the second spring (10) will be energized, and the energized second spring (10) will be compressed. The second spring (10) presses on and pulls the dust removal ring (12) to move upwards until the impact force of the air flow is balanced with the elastic force of the second spring (10) and the gravity of the dust removal ring (12). The dust removal ring (12) will stop moving upwards. At this time, the dust removal ring (12) will move up to the upper part of the purification tube (13). When the double-headed motor (3) is powered off, the fan (5) stops rotating. There is no air flow in the purification tube (13). Because there is no impact force of the air flow, the dust removal ring (12) will be on the second spring. The dust is then moved downwardly under the elastic force of the first spring (10). At this time, the arc-shaped metal plate (9) is still energized, and the dust is adsorbed on the inner wall of the purification tube (13). The dust removal ring (12) scrapes the dust adsorbed on the inner wall of the purification tube (13) and moves downward together. Then, the dust removal ring (12) moves all the way to the upper side of the air inlet. At this time, there is no effect of the electric field, and the dust will fall into the dust discharge channels (7) on both sides below the purification tube (13) and be discharged from the dust discharge ports on both sides of the bottom of the ventilation chamber (2). When no air flow enters, the windshield plate (27) will also rotate in the direction away from the mounting block due to the elastic force of the first spring (6) and then close the air inlet, which is conducive to the dust entering the dust discharge channel (7) and preventing it from re-entering the air.

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