Fresh air system suitable for medical plasma

Abstract

The invention belongs to the technical field of medical fresh air systems, and particularly relates to a medical plasma fresh air system which comprises a box. The interior of the box body is divided into a first cavity and a second cavity through a partition plate between the opposite side walls of the box body. An air inlet and an air outlet are formed in the opposite side walls of the first cavity correspondingly. A first plate and a second plate are fixedly connected between the opposite side walls of the first cavity; a filter screen is arranged on the side wall of the first plate through a first circular groove; an air inlet pipe is fixedly connected to the interior of the air inlet; a rotating cover is rotationally connected between the air inlet pipe and the first circular groove, and the section of the rotating cover is in a horn shape. The problems that firstly, air and plasmas are directly discharged under the condition that mixing is not uniform enough, so that the concentration of partial areas is too low, disinfection dead angles exist, the disinfection time needs to be prolonged, the disinfection efficiency is reduced, part of pathogens are left after disinfection, and the risk of re-spreading is increased are solved; and in addition, the problem of energy waste is also increased.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical fresh air systems, and in particular is a fresh air system suitable for medical plasma. Background Art

[0002] The medical plasma fresh air system is a fresh air system that uses plasma technology to purify and disinfect the air. It kills germs and eliminates odors by generating high-energy plasma. It is widely used in medical, hotel, food processing and public places. The plasma in the medical plasma fresh air system can quickly oxidize and decompose most bacteria, viruses and organic compounds to achieve the purpose of cleaning and disinfection. It has the advantages of high-efficiency sterilization and deep purification.

[0003] In places such as hospitals where air quality requirements are high, installing a medical plasma fresh air system can effectively improve indoor air quality and protect the health of medical staff and patients. In addition, the system can also be applied to other places that require air purification and disinfection, such as hotels, schools, offices, etc. A Chinese patent with patent number CN116518493A discloses a plasma fresh air system, including a flow mechanism, a casing and a plasma purification mechanism. The flow mechanism includes an air inlet pipe for introducing outdoor air into the room and an exhaust pipe for introducing indoor air into the outside; the air inlet end of the casing is connected to the air inlet pipe through a filter unit, and an exhaust unit is installed on the casing. The plasma purification mechanism is placed in the casing, including an air hood, an external air duct connected to the air hood, and an internal air duct arranged in the external air duct. The external air duct and the internal air duct form a first purification chamber, and the internal air duct forms a second purification chamber. The first purification chamber and the second purification chamber are connected to the exhaust unit and are respectively provided with plasma generators.

[0004] The existing technology has the following problems: first, the air and plasma are directly discharged without being evenly mixed, resulting in low concentrations in some areas and the creation of disinfection dead zones. This, in turn, requires extended disinfection time, reduces disinfection efficiency, and causes some pathogens to remain after disinfection, increasing the risk of retransmission and wasting energy.

[0005] The second is that the filter is fixed, and the air entering the box cannot be evenly distributed on the filter, which causes impurities to be blocked in one place of the filter, affecting the air intake efficiency. For this reason, the filter needs to be cleaned and taken out, and the cleaning efficiency is low. For this reason, the present invention provides a fresh air system suitable for medical plasma. Summary of the Invention

[0006] In order to make up for the shortcomings of the existing technology, the first problem to be solved is that the air and plasma are directly discharged when the mixing is not uniform, resulting in too low concentration in some areas and the existence of disinfection dead corners, which in turn requires extended disinfection time, reduces disinfection efficiency, and causes some pathogens to remain after disinfection, increasing the risk of re-transmission, and also increases the problem of energy waste.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the fresh air system suitable for medical plasma described in the present invention comprises a box body; the inner part of the box body is divided into a first cavity and a second cavity by a partition between the opposite side walls of the box body; the opposite side walls of the first cavity are respectively provided with an air inlet and an air outlet; a first plate and a second plate are fixedly connected between the opposite side walls of the first cavity; a filter is provided on the side wall of the first plate through a first circular groove; an air inlet pipe is fixedly connected to the inside of the air inlet; a rotating cover is rotatably connected between the air inlet pipe and the first circular groove, and the cross-section of the rotating cover is trumpet-shaped; an anti-blocking member is provided between the filter and the rotating cover; a filter plate is provided on the top of the box body through a square groove; the filter plate is located between the first plate and the second plate; a guide cover is fixedly connected to the side wall of the second plate through a second circular groove; a uniform mixing member is provided on the end of the guide cover; and a plasma generator is fixedly connected to the top of the first cavity.

[0008] Preferably, the anti-blocking part includes a spiral groove; a group of spiral grooves are opened on the inner wall of the rotating cover; the inner wall opening at one lateral end of the rotating cover is larger and the middle opening is smaller; the filter screen has a conical cross-section, and the tip of the cone is arranged toward the rotating cover; the inner ring wall in the middle of the rotating cover is rotatably connected to a ring in a ring; the inner ring of the ring in the ring is rotatably connected to a rotating column, and the rotating column passes through the filter screen; fan blades are fixed to the rotating column, and the fan blades are located in the middle of the inner wall at one lateral end of the rotating cover; a group of brushes are fixed to the rotating column; the brushes are in contact with the filter screen; the bottom of the inner ring wall of the first circular groove and the bottom of the filter plate are provided with a miscellaneous groove, and the miscellaneous groove passes through the box and is fixed with a collection cover; a collection box is provided in the collection cover.

[0009] Preferably, the uniform mixing element includes a Venturi tube; the guide cover end is fixedly connected to the Venturi tube; the bifurcated tube of the Venturi tube is connected to the output tube of the plasma generator; the end of the Venturi tube is fixedly connected to a bent tube, and one end of the bent tube extends out of the air outlet; the inner wall of the bent tube near the end of the Venturi tube is rotatably connected to a rotating ring; the inner wall of the rotating ring is trumpet-shaped, and the trumpet opening is arranged toward the Venturi tube; a group of twisted grooves are opened on the inner wall of the rotating ring; and the inner wall of the bent corner of the bent tube near the end of the rotating ring is fixedly connected to an inclined plate.

[0010] Preferably, a pair of circular rings are fixed to the inner ring wall of the first circular groove; a group of fixed columns are fixed between the opposite side walls of the pair of circular rings; a sliding ring is slidably connected between a group of fixed columns; both sides of the sliding ring are fixed to each other through springs and the side walls of the circular rings; the sliding ring and the filter are fixed to each other; a horn ring is fixed to the end of the filter, and the opening of the horn ring is arranged toward the filter plate; a connecting column is fixed to the rotating column through a triangular block; a group of knocking balls are fixed to each of the connecting columns; a group of inclined blocks are fixed to the inner wall of the filter, and the positions of the knocking balls and the inclined blocks correspond to each other.

[0011] Preferably, the top of the box body is fixedly connected to a water tank; the inside of the water tank is sealed and slidably connected to a push plate; the side wall of the push plate is fixedly connected to a push column, and the push column passes through the water tank and is fixedly connected to a fixed plate; a spring is fixedly connected between the fixed plate and the opposite side wall of the water tank; the top of the water tank is fixedly connected to a water inlet pipe; a one-way valve is provided on the water inlet pipe; the side wall of the water tank is fixedly connected to a U-tube; one end of the U-tube passes through the box body and is fixedly connected to a triangular tube, and the triangular tube passes through the bent tube; the side wall of the triangular tube is fixedly connected to a group of nozzles through a group of injection slots, and the nozzles are located in the bent tube; a power part is provided on the top of the box body; the fixed plate is driven to reciprocate by the power part.

[0012] Preferably, the power part includes a motor; a motor is fixedly connected to the side wall of the first cavity; a first gear is fixedly connected to the output end of the motor and the rotating cover, and a pair of first gears are meshed with each other; a pair of fixed blocks are fixedly connected to the top of the box body; a rotating rod is rotatably connected between the pair of fixed blocks; a second gear is fixedly connected to the rotating rod, and the second gear is meshed with the first gear at the proximal end of the motor; a cam is fixedly connected to the rotating rod, and the push plate is in contact with the cam.

[0013] Preferably, a transmission rod is rotatably connected between the first plate and the second plate through a pair of third circular grooves; a first sprocket is fixedly connected to one end of the transmission rod and the rotating cover; a pair of first sprockets are driven by a first chain; the lower end of the bending tube is rotatably connected to the rotating tube through a connecting groove; a twisting block is fixed in the rotating tube, and the position of the twisting block and the triangular tube corresponds to that of the triangular tube; a second sprocket is fixedly connected to the other end of the rotating tube and the transmission rod; a group of second sprockets are driven by a second chain.

[0014] Preferably, the cross-section of the filter plate is inverted convex; a pair of fixing rods are fixed to the bottom of the first cavity; an arc block is fixed to the top of the pair of fixing rods; an arc groove is fixed to the bottom of the arc block; a double arc block is slidably connected to the fixing rod, and the top of the double arc block is adapted to the arc groove; a fixing ring is fixed to the fixing rod; square grooves are provided on both side walls of the filter plate; a pair of sliding blocks are fixed to the side walls of the square grooves through springs; a ball block is fixed to the side wall of the sliding block; a pair of square through grooves are provided at the bottom of the filter plate; a pair of springs are fixed to the top of the first cavity, and the springs are in contact with the square through grooves.

[0015] Preferably, the first plate and the second plate are fixedly connected to the opposite side walls with a first magnetic block; the side walls on both sides of the filter plate are provided with a through groove; the top of a pair of the through grooves are fixedly connected to a pleated curtain; the bottom of the pleated curtain is fixedly connected to a second magnetic block, and the first magnetic block and the second magnetic block are magnetically attracted to each other.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The fresh air system suitable for medical plasma described in the present invention prevents impurities from accumulating on the filter screen through the operation of the anti-blocking component, causing blockage on the filter screen surface and affecting the air intake efficiency. At the same time, the plasma is output through the plasma generator, and the air and plasma entering the box are mixed by the uniform mixing component to avoid uneven mixing that may cause the plasma concentration in some areas to be too high, while the concentration in other areas is too low or even non-existent. The areas with low concentration may not be fully disinfected, and there will be blind spots for disinfection.

[0018] 2. The fresh air system suitable for medical plasma described in the present invention uses a brush to rotate on the surface of the filter to clean impurities to avoid impurities accumulating on the surface of the filter. The establishment of the spiral groove can make the gas drive the rotating cover to rotate through the spiral groove, and the rotation of the rotating cover can also promote the rotation of the fan blades. The gas passes through the spiral groove and the rotation of the rotating cover, which can make it spiral into the deeper part of the filter, so that the utilization rate of the filter is higher, and the impurities in the air can be spread all over the surface of the filter to avoid only one place in the filter to play a filtering role.

[0019] 3. The fresh air system suitable for medical plasma described in the present invention increases the flow rate and reduces the pressure of the gas when flowing through a narrow throat through the special structure of the Venturi tube, thereby enhancing the interaction and mixing between the air and plasma, thereby making the air and plasma mixed more evenly. The multi-bend design of the bending tube allows the air and plasma to pass through a longer path in a more limited space, and during the path, they pass through multiple bends, thereby achieving a higher degree of mixing.

[0020] 4. The fresh air system suitable for medical plasma described in the present invention can prevent impurities from being blocked in the holes of the filter by shaking off impurities along the filter screen; through the establishment of the special structure of the speaker ring and the shaking of the filter screen, impurities on the speaker ring fall into the collection box, so that the cleaning and collection of impurities are more thorough, energy-saving and efficient.

[0021] 5. The fresh air system suitable for medical plasma described in the present invention, through contact with mixed plasma and gas (the plasma here requires low-temperature plasma), the active particles in the plasma, such as electrons, ions, free radicals, etc., will interact with water molecules, causing the decomposition and recombination of water molecules, and producing substances such as hydrogen, oxygen, and hydrogen peroxide. The hydroxyl free radical has strong oxidizing properties and can react with organic matter in the water to degrade the organic matter. Hydrogen peroxide has oxidizing properties and can be used for sterilization and disinfection.

[0022] 6. The fresh air system suitable for medical plasma described in the present invention drives the rotating cover to rotate by a motor, so that the air flow rate and flow rate entering the rotating cover are increased, and the air can spread more comprehensively on the filter surface, so that the filter utilization rate is higher. At the same time, through the establishment of the spiral groove in the rotating cover, the rotation speed of the rotating cover is steadily increased, which promotes the stable increase in the fan blade speed, thereby making the vibration of the filter regular and the cleaning and anti-blocking of impurities more efficient.

[0023] 7. The fresh air system suitable for medical plasma described in the present invention can accelerate the reaction speed of the mixed plasma after reacting with water through the rotating tube by rotating the twisting block in the rotating tube, so that the plasma and water are more evenly mixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 It is a perspective view of the present invention;

[0026] Figure 2 This is a front cross-sectional view of the box body of the present invention;

[0027] Figure 3 It is a front cross-sectional view of the present invention;

[0028] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0029] Figure 5 yes Figure 3 Enlarged view of point B in the middle;

[0030] Figure 6 yes Figure 3 Enlarged view of point C in the middle;

[0031] Figure 7 yes Figure 3 Enlarged view of point D in the middle;

[0032] Figure 8 It is a side sectional view of a part of the structure of the present invention;

[0033] Figure 9yes Figure 8 Enlarged view of point E in the middle;

[0034] Figure 10 It is a partial structural diagram of the present invention;

[0035] Figure 11 yes Figure 10 Enlarged view of point F in the middle;

[0036] Figure 12 This is a partial structural diagram of the filter screen in the present invention;

[0037] Figure 13 It is a partial structural diagram of the bending tube in the present invention.

[0038] In the figure: 1. Box; 11. First cavity; 12. First plate; 13. Second plate; 14. Filter; 15. Rotating cover; 16. Filter plate; 17. Guide cover; 18. Ion generator; 2. Spiral groove; 21. Ring within ring; 22. Rotating column; 23. Fan blade; 24. Brush; 25. Collecting cover; 26. Collecting box; 3. Venturi tube; 31. Bend tube; 32. Rotating ring; 33. Twisted groove; 34. Inclined plate; 4. Circular ring; 41. Fixed column; 42. Sliding ring; 43. Horn ring; 44. Knocking ball; 45. Inclined block; 5. Motor; 5 1. First gear; 52. Water tank; 53. Push column; 54. Fixed plate; 55. Water inlet pipe; 56. U-tube; 57. Triangular tube; 6. Rotating rod; 61. Second gear; 62. Cam; 7. Transmission rod; 71. First sprocket; 72. First chain; 73. Rotating tube; 74. Twisting block; 75. Second sprocket; 76. Second chain; 8. Fixed rod; 81. Arc block; 82. Arc groove; 83. Double arc block; 84. Fixed ring; 85. Sliding block; 86. Ball block; 9. First magnetic block; 91. Through slot; 92. Corrugated curtain; 93. Second magnetic block. DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0040] Example 1

[0041] like Figures 1 to 7 、 Figures 10 to 13As shown, the embodiment of the present invention is a fresh air system suitable for medical plasma, comprising a box body 1; the interior of the box body 1 is divided into a first cavity 11 and a second cavity by a partition between the opposite side walls of the box body 1; the opposite side walls of the first cavity 11 are respectively provided with an air inlet and an air outlet; a first plate 12 and a second plate 13 are fixedly connected between the opposite side walls of the first cavity 11; a filter screen 14 is provided on the side wall of the first plate 12 through a first circular groove; an air inlet pipe is fixedly connected inside the air inlet; a rotating cover 15 is rotatably connected between the air inlet pipe and the first circular groove, and the cross-section of the rotating cover 15 is trumpet-shaped; an anti-blocking member is provided between the filter screen 14 and the rotating cover 15; a filter plate 16 is provided on the top of the box body 1 through a square groove; the filter plate 16 is located between the first plate 12 and the second plate 13; the side wall of the second plate 13 is fixedly connected to a guide cover 17 through a second circular groove; a uniform mixing member is provided at the end of the guide cover 17; the first air A plasma generator 18 is fixedly connected to the top of the cavity 11; when working, impurities in the air entering the box 1 are filtered through the filter 14, and then the anti-blocking part is operated to prevent impurities from accumulating on the filter 14, causing blockage on the surface of the filter 14 and affecting the air intake efficiency. At the same time, plasma is output by the plasma generator, and the air entering the box 1 and the plasma are mixed through the uniform mixing part to avoid uneven mixing, which may cause the plasma concentration in some areas to be too high, while the concentration in other areas is too low or even non-existent. The areas with low concentration may not be fully disinfected, and there are dead corners for disinfection, which reduces the overall disinfection coverage. In some areas, there is insufficient plasma and pathogens cannot be effectively killed within the specified time, thereby extending the time required for disinfection and reducing the disinfection efficiency. Due to the uneven mixing, the effect of each disinfection may vary greatly, making it difficult to ensure stable and reliable disinfection quality.

[0042] The anti-blocking member includes a spiral groove 2; a group of spiral grooves 2 are opened on the inner wall of the rotating cover 15; the inner wall opening at one lateral end of the rotating cover 15 is larger and the middle opening is smaller; the filter screen 14 has a conical cross-section, and the tip of the cone is arranged at the rotating cover 15; the inner ring wall in the middle of the rotating cover 15 is rotatably connected to a ring-in-ring 21; the inner ring of the ring-in-ring 21 is rotatably connected to a rotating column 22, and the rotating column 22 passes through the filter screen 14; the rotating column 22 is fixedly connected to a fan blade 23, and the fan blade 23 is located in the middle of the inner wall at one lateral end of the rotating cover 15; a group of brushes 24 are fixedly connected to the rotating column 22; the brush 24 is in contact with the filter screen 14; the bottom of the inner ring wall of the first circular groove and the bottom of the filter plate 16 of the box body 1 are both provided with a miscellaneous groove, and the miscellaneous groove passes through the box body 1 and is fixedly connected to a collection cover 25; a collection box 26 is provided in the collection cover 25; the working During operation, the design of the large opening at the end of the rotating cover 15 and the small inner diameter in the middle (Bernoulli principle) makes the wind speed entering the middle of the rotating cover 15 faster, thereby driving the fan blades 23 to rotate faster, so as to drive the brush 24 to rotate on the surface of the filter 14 to clean the impurities, so as to avoid the impurities accumulating on the surface of the filter 14. When the impurities are brushed off from the filter 14 by the brush 24, the impurities enter the collection box 26 through the outlet groove to complete the cleaning and collection. The establishment of the spiral groove 2 can make the gas drive the rotating cover 15 to rotate through the spiral groove 2. The rotation of the rotating cover 15 can also promote the rotation of the fan blades 23. The gas passes through the spiral groove 2 and the rotating cover 15, which can make it spirally enter deeper into the filter 14, so that the utilization rate of the filter 14 is higher, and the impurities in the air can be spread over the surface of the filter 14, so as to avoid only one place in the filter 14 that can play a filtering role.

[0043] The uniform mixing element includes a venturi tube 3; the end of the guide cover 17 is fixedly connected to the venturi tube 3; the bifurcated tube of the venturi tube 3 is connected to the output tube of the plasma generator 18; the end of the venturi tube 3 is fixedly connected to a bent tube 31, and one end of the bent tube 31 extends out of the air outlet; the inner wall of the bent tube 31 at the proximal end of the venturi tube 3 is rotatably connected to a rotating ring 32; the inner wall of the rotating ring 32 is trumpet-shaped, and the trumpet opening is arranged toward the venturi tube 3; a group of twisted grooves 33 are opened on the inner wall of the rotating ring 32; the inner wall of the bent corner of the bent tube 31 at the proximal end of the rotating ring 32 is fixedly connected to an inclined plate 34; when working, the special structure of the venturi tube 3 allows the gas to flow through the narrow throat The speed increases and the pressure decreases, thereby causing the bifurcated tube of the venturi tube 3 to absorb the plasma in the plasma generator 18, and this pressure difference and flow rate change will generate turbulence and eddy currents, thereby enhancing the interaction and mixing between the air and the plasma, thereby making the air and plasma mixed more evenly. The multi-bend design of the bending tube 31 allows the air and plasma to pass through a longer path in a more limited space, and during the path, they pass through multiple bends, thereby making them more mixed. When the mixed plasma enters the narrow inner wall of the rotating ring 32, the flow rate increases, and through the establishment of the twisted groove 33, the rotating ring 32 is driven to rotate, so that the plasma and gas are further mixed.

[0044] A pair of circular rings 4 are fixed to the inner ring wall of the first circular groove; a group of fixed columns 41 are fixed between the opposite side walls of the pair of circular rings 4; a sliding ring 42 is slidably connected between a group of fixed columns 41; both sides of the sliding ring 42 are fixedly connected to the side walls of the circular ring 4 by springs; the sliding ring 42 and the filter screen 14 are fixedly connected; the end of the filter screen 14 is fixedly connected to a horn ring 43, and the opening of the horn ring 43 is arranged toward the filter plate 16; a connecting column is fixedly connected to the rotating column 22 through a triangular block; a group of the connecting columns are fixedly connected to a knocking ball 44; a group of inclined blocks 45 are fixedly connected to the inner wall of the filter screen 14, and the knocking ball 44 and the inclined block 45 are positioned correspondingly; when working, the filter screen 14 is driven to slide along the fixed column 41 by the sliding ring 42, and the sliding ring 42 can activate the vibration while sliding through the springs on both sides, thereby making the filter screen 14 While the surface impurities are being cleaned by the brush 24, the impurities can also be shaken off. The fan blades 23 drive the rotating column 22 to rotate, and then the knocking ball 44 continuously knocks the inclined block 45, so that the filter 14 is driven to vibrate back and forth through the inclined block 45. When the filter 14 moves toward the bristles of the brush 24, some of the bristles penetrate into the holes of the filter 14, which can prevent impurities from being blocked in the holes of the filter 14; through the special structure of the horn ring 43 and the inertia of the rapid movement of the filter 14, the impurities between the filter 14 and the filter plate 16 can be made to vibrate back and forth through the filter 14. When the filter 14 vibrates back and forth, the larger opening end of the horn ring 43 is set, so that when the filter 14 moves toward the brush 24, the filter 14 shakes, causing the impurities on the horn ring 43 to fall into the collection box 26, so that the cleaning and collection of impurities are more thorough, energy-saving, and efficient.

[0045] Example 2

[0046] like Figures 2 to 3 、 Figure 10As shown, on the basis of embodiment 1, power parts and other mechanisms are added to make the rotating cover 15 and the fan blades 23 rotate stably, thereby making the cleaning effect of the filter 14 stable and continuous; the functions of spraying water and uniformly mixing water and plasma are added in the bent tube 31, so that the disinfection effect is better; the top of the box body 1 is fixedly connected to the water tank 52; the inside of the water tank 52 is sealed and slidably connected to the push plate; the side wall of the push plate is fixedly connected to the push column 53, and the push column 53 passes through the water tank 52 and is fixedly connected to the fixed plate 54; a spring is fixedly connected between the fixed plate 54 and the opposite side wall of the water tank 52; the top of the water tank 52 is fixedly connected to the water inlet pipe 55; the water inlet pipe 55 is provided with a one-way valve; the side wall of the water tank 52 is fixedly connected to a U-tube 56; one end of the U-tube 56 passes through the box body 1 and is fixedly connected to the triangular tube 57, and the triangular tube 57 passes through the bent tube 31; the side wall of the triangular tube 57 is connected by a A group of nozzles is fixedly connected to the group injection slot, and the nozzles are located in the bent tube 31; a power part is provided on the top of the box body 1; the fixed plate 54 is driven to move back and forth by the power part; when working, the push plate is driven to move back and forth by the power part, and at the same time, the one-way valve and the water inlet pipe 55 are established, so that the water inlet pipe 55 continuously supplies water to the water tank 52, and the water enters the triangular tube 57 through the U-tube 56 and is ejected through the nozzle, and contacts with the mixed plasma and gas (the plasma here requires low-temperature plasma). The active particles in the plasma, such as electrons, ions, free radicals, etc., will interact with water molecules, causing the decomposition and recombination of water molecules, and producing substances such as hydrogen, oxygen, and hydrogen peroxide. The hydroxyl free radical has strong oxidizing properties and can react with organic matter in the water to degrade the organic matter. Hydrogen peroxide has oxidizing properties and can be used for sterilization and disinfection.

[0047] The power part includes a motor 5; the side wall of the first cavity 11 is fixedly connected to the motor 5; the output end of the motor 5 and the rotating cover 15 are fixedly connected to a first gear 51, and the pair of first gears 51 are meshed with each other; a pair of fixed blocks are fixedly connected to the top of the box body 1; a rotating rod 6 is rotatably connected between the pair of fixed blocks; a second gear 61 is fixedly connected to the rotating rod 6, and the second gear 61 is meshed with the first gear 51 at the proximal end of the motor 5; a cam 62 is fixedly connected to the rotating rod 6, and the push plate is in contact with the cam 62; when working, the motor 5 rotates and the first The gear 51 is driven to rotate the rotating cover 15, thereby increasing the air flow rate and flow rate entering the rotating cover 15, and the air can more comprehensively spread over the surface of the filter 14, so that the utilization rate of the filter 14 is higher. At the same time, through the establishment of the spiral groove 2 in the rotating cover 15, the rotation speed of the rotating cover 15 is steadily increased, which promotes the steady increase in the rotation speed of the fan blades 23, thereby making the vibration of the filter 14 regular and the cleaning and anti-blocking of impurities more efficient; the first gear 51 drives the second gear 61 and the rotating rod 6 to rotate, and then drives the cam 62 to rotate, so that the water tank 52 sprays water intermittently.

[0048] A transmission rod 7 is rotatably connected between the first plate 12 and the second plate 13 via a pair of third circular grooves. A first sprocket 71 is fixedly connected to one end of the transmission rod 7 and the rotating cover 15. The pair of first sprockets 71 are driven by a first chain 72. The lower end of the bent tube 31 is rotatably connected to a rotating tube 73 via a connecting groove. A twisting block 74 is fixedly connected within the rotating tube 73, and the twisting block 74 and the triangular tube 57 are positioned correspondingly. Second sprockets 75 are fixedly connected to the other end of the rotating tube 73 and the transmission rod 7. A pair of second sprockets 75 are driven by a second chain 76. During operation, the rotation of the rotating cover 15 and the first chain 72 drive the transmission rod 7, which in turn drives the pair of rotating tubes 73. The twisting blocks 74 within the rotating tubes 73 rotate (when plasma and water enter the curved spiral grooves between the twisting blocks 74). This accelerates the reaction of the mixed plasma with water through the rotating tube 73, thereby achieving a more uniform mixing of the plasma and water.

[0049] Example 3

[0050] like Figure 5 、 Figures 8 and 9 As shown, on the basis of embodiment 2, the function of detachable filter plate 16 is added, so that the filter plate 16 is easy to clean; the cross section of the filter plate 16 is inverted convex; a pair of fixing rods 8 are fixed to the bottom of the first cavity 11; the top of the pair of fixing rods 8 are fixed to an arc block 81; the bottom of the arc block 81 is fixed to an arc groove 82; a double arc block 83 is slidably connected to the fixing rod 8, and the top of the double arc block 83 is adapted to the arc groove 82; a fixing ring 84 is fixed to the fixing rod 8; square grooves are provided on both side walls of the filter plate 16; a pair of sliding blocks are fixed to the side walls of the square grooves by springs 85; the side wall of the sliding block 85 is fixed with a ball block 86; the bottom of the filter plate 16 is provided with a pair of square grooves; the top of the first cavity 11 is fixed with a pair of springs, and the springs are in contact with the square grooves; when working, by continuing to press the filter plate 16, the ball block 86 squeezes the double arc block 83 and the sliding block 85 slides inwardly thereof. When the ball block 86 reaches the bottom of the double arc block 83, the double arc block 83 is dragged upward and the double arc block 83 is stuck in the arc groove 82. The ball block 86 passes through the double arc block 83 and reaches the top of the arc block 81, thereby releasing the fixation of the filter plate 16, making it very convenient and quick to disassemble.

[0051] The first magnetic blocks 9 are fixed to the opposite side walls of the first plate 12 and the second plate 13; the side walls on both sides of the filter plate 16 are provided with through grooves 91; a pair of the through grooves 91 are fixed to the top of each of the corrugated curtains 92; the bottom of the corrugated curtains 92 is fixed to the second magnetic block 93, and the first magnetic block 9 and the second magnetic block 93 are magnetically attracted to each other; during operation, the establishment of the corrugated curtains 92 can prevent impurities from falling into the box body 1 when the filter plate 16 is taken out, and when the filter plate 16 moves upward, the first magnetic block 9 and the second magnetic block 93 are attracted to each other until the filter plate 16 drives the second magnetic block 93 to completely leave the box body 1, that is, the impurities on the filter plate 16 are sealed and taken away from the box body 1 through the corrugated curtains 92.

[0052] Working principle: Impurities in the air entering the box 1 are filtered through the filter 14, and then the anti-blocking part is operated to prevent impurities from accumulating on the filter 14, causing blockage on the surface of the filter 14 and affecting the air intake efficiency. At the same time, plasma is output through the plasma generator, and the air entering the box 1 and the plasma are mixed through the uniform mixing part to avoid uneven mixing, which may cause the plasma concentration in some areas to be too high, while the concentration in other areas is too low or even non-existent. The areas with low concentration may not be fully disinfected, and there are dead corners for disinfection, which reduces the overall disinfection coverage. In some areas, the plasma is insufficient and cannot effectively kill pathogens within the specified time, thereby extending the time required for disinfection and reducing the disinfection efficiency. In addition, due to the mixing Due to the unevenness of the combination, the effect of each disinfection may vary greatly, making it difficult to ensure stable and reliable disinfection quality. The design of the rotating cover 15 with a large opening at the end and a small inner diameter in the middle (Bernoulli principle) allows the wind speed entering the middle of the rotating cover 15 to be faster, thereby driving the fan blades 23 to rotate faster, so as to drive the brush 24 to rotate on the surface of the filter 14 to clean impurities, so as to avoid impurities accumulating on the surface of the filter 14. When the impurities are brushed off from the filter 14 by the brush 24, the impurities enter the collection box 26 through the outlet groove to complete the cleaning and collection. The establishment of the spiral groove 2 can make the gas drive the rotating cover 15 to rotate through the spiral groove 2. The rotation of the rotating cover 15 can also promote the rotation of the fan blades 23. The gas passes through the spiral groove 2 and the rotating cover 15 to rotate. It can be spirally entered deeper into the filter 14, so that the utilization rate of the filter 14 is higher, and the impurities in the air can be spread over the surface of the filter 14 to avoid that only one place in the filter 14 can play a filtering role. Through the special structure of the venturi tube 3, the gas flow rate increases and the pressure decreases when flowing through the narrow throat, so that the bifurcated tube of the venturi tube 3 absorbs the plasma in the plasma generator 18, and this pressure difference and flow rate change will produce turbulence and eddy currents, enhance the interaction and mixing between the air and the plasma, and make the air and plasma mix more uniformly. Through the multi-bend design of the bending tube 31, the air and plasma can pass through a longer path in a more limited space, and during the path, it passes through multiple bends, so that The mixing degree is higher. When the mixed plasma enters the narrow inner wall of the rotating ring 32, the flow rate increases, and the twisted groove 33 is established, thereby driving the rotating ring 32 to rotate, so that the plasma and gas are further mixed, and the filter 14 is driven to slide along the fixed column 41 through the sliding ring 42. The sliding ring 42 can also start the vibration while sliding through the springs on both sides, so that the impurities on the surface of the filter 14 can be cleaned by the brush 24 while also starting to shake off the impurities. The rotating column 22 is driven to rotate by the fan blade 23, and then the knocking ball 44 continuously knocks the inclined block 45, so that the filter 14 is driven to vibrate back and forth through the inclined block 45. When the filter 14 moves toward the bristles of the brush 24, some of the bristles penetrate into the holes of the filter 14.It can prevent impurities from being blocked in the holes of the filter 14; through the establishment of the special structure of the trumpet ring 43 and the inertia of the rapid movement of the filter 14, the impurities between the filter 14 and the filter plate 16 can be made to vibrate back and forth through the filter 14. When the filter 14 vibrates back and forth, the larger opening end of the trumpet ring 43 is established, so that when the filter 14 moves toward the brush 24, the filter 14 shakes, causing the impurities on the trumpet ring 43 to fall into the collection box 26, so that the cleaning and collection of impurities are more thorough, energy-saving and efficient. The push plate is driven to move back and forth by the power part, and at the same time, the one-way valve and the water inlet pipe 55 are established, so that the water inlet pipe 55 continuously supplies water to the water tank 52, and the water enters the triangular pipe 57 through the U-tube 56 and is sprayed out through the nozzle, and passes through The mixed plasma and gas come into contact (the plasma here requires low-temperature plasma), and the active particles in the plasma, such as electrons, ions, free radicals, etc., interact with water molecules, causing the decomposition and recombination of water molecules, and producing substances such as hydrogen, oxygen, and hydrogen peroxide. The hydroxyl free radical has strong oxidizing properties and can react with organic matter in the water to degrade the organic matter. Hydrogen peroxide has oxidizing properties and can be used for sterilization. The motor 5 rotates and the first gear 51 is driven to rotate the rotating cover 15, thereby increasing the air flow rate and flow into the rotating cover 15, and the air can be more fully distributed on the surface of the filter 14, so that the filter 14 has a higher utilization rate. At the same time, through the spiral groove 2 in the rotating cover 15 With the establishment of the rotating cover 15, the speed of the rotating cover 15 increases steadily, which promotes the stable increase in the speed of the fan blades 23, thereby making the vibration of the filter 14 regular, and the cleaning and anti-blocking of impurities more efficient; the first gear 51 drives the second gear 61 and the rotating rod 6 to rotate, and then drives the cam 62 to rotate, so that the water tank 52 sprays water intermittently, and the rotating cover 15 rotates and the first chain 72 drives the transmission rod 7 to rotate, and then drives a group of rotating tubes 73 to rotate, and the twisting blocks 74 in the rotating tubes 73 rotate (when the plasma and water enter the curved spiral groove between the twisting blocks 74), the mixed plasma can react with the water, and the reaction speed is accelerated through the rotating tube 73, even if the plasma and water are more evenly mixed. By continuing to press the filter plate 16, the ball block 86 squeezes the double arc block 83 while the sliding block 85 slides inward. When the ball block 86 reaches the bottom of the double arc block 83, it drags the double arc block 83 upward. At the same time, the double arc block 83 is locked into the arc groove 82. The ball block 86 passes through the double arc block 83 and reaches the top of the arc block 81, thereby releasing the fixation on the filter plate 16, making its removal very convenient and quick. The establishment of the pleated curtain 92 can prevent impurities from falling into the box body 1 when the filter plate 16 is removed. When the filter plate 16 moves upward, the first magnetic block 9 and the second magnetic block 93 attract each other until the filter plate 16 drives the second magnetic block 93 completely out of the box body 1. That is, the impurities on the filter plate 16 are sealed and removed from the box body 1 through the pleated curtain 92.

[0053] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0055] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A fresh air system suitable for medical plasma, characterized by: The invention comprises a box body (1); a partition is provided between opposite side walls of the box body (1) to divide the interior of the box body (1) into a first cavity (11) and a second cavity; an air inlet and an air outlet are respectively provided on opposite side walls of the first cavity (11); a first plate (12) and a second plate (13) are fixedly connected between opposite side walls of the first cavity (11); a filter screen (14) is provided on the side wall of the first plate (12) through a first circular groove; an air inlet pipe is fixedly connected to the interior of the air inlet; a rotating shaft is rotatably connected between the air inlet pipe and the first circular groove. A cover (15) is provided, and the cross section of the rotating cover (15) is trumpet-shaped; an anti-blocking member is provided between the filter screen (14) and the rotating cover (15); a filter plate (16) is provided on the top of the box body (1) through a square groove; the filter plate (16) is located between the first plate (12) and the second plate (13); a guide cover (17) is fixedly connected to the side wall of the second plate (13) through a second circular groove; a uniform mixing member is provided at the end of the guide cover (17); and a plasma generator (18) is fixedly connected to the top of the first cavity (11).

2. The fresh air system suitable for medical plasma according to claim 1, characterized in that: The anti-blocking member comprises a spiral groove (2); a group of spiral grooves (2) are formed on the inner wall of the rotating cover (15); the inner wall opening at one lateral end of the rotating cover (15) is larger and the opening in the middle is smaller; the filter screen (14) has a conical cross section, and the tip of the conical shape is arranged toward the rotating cover (15); a ring-in-ring (21) is rotatably connected to the inner ring of the ring-in-ring (21); a rotating column (22) is rotatably connected to the inner ring of the ring-in-ring (21), and the rotating column (22) passes through the filter screen (14); The rotating column (22) is fixedly connected with a fan blade (23), and the fan blade (23) is located at the middle of the inner wall of one lateral end of the rotating cover (15); a group of brushes (24) are fixedly connected to the rotating column (22); the brushes (24) are in contact with the filter screen (14); the bottom of the inner ring wall of the first circular groove and the bottom of the filter plate (16) of the box body (1) are both provided with a waste outlet groove, and the waste outlet groove passes through the box body (1) and is fixedly connected to a collection cover (25); a collection box (26) is provided in the collection cover (25).

3. The fresh air system suitable for medical plasma according to claim 2, characterized in that: The uniform mixing element comprises a Venturi tube (3); the end of the guide cover (17) is fixedly connected to the Venturi tube (3); the bifurcated tube of the Venturi tube (3) is connected to the output tube of the plasma generator (18); the end of the Venturi tube (3) is fixedly connected to a bent tube (31), and one end of the bent tube (31) extends out of the air outlet; the inner wall of the bent tube (31) near the end of the Venturi tube (3) is rotatably connected to a rotating ring (32); the inner wall of the rotating ring (32) is trumpet-shaped, and the trumpet opening is arranged toward the Venturi tube (3); a group of twisted grooves (33) are opened on the inner wall of the rotating ring (32); and an inclined plate (34) is fixedly connected to the inner wall of the bent corner of the bent tube (31) near the end of the rotating ring (32).

4. The fresh air system suitable for medical plasma according to claim 3, characterized in that: A pair of circular rings (4) are fixedly connected to the inner ring wall of the first circular groove; a group of fixed columns (41) are fixedly connected between the opposite side walls of the pair of circular rings (4); a sliding ring (42) is slidably connected between the group of fixed columns (41); both sides of the sliding ring (42) are fixedly connected to the side walls of the circular ring (4) through springs; the sliding ring (42) and the filter screen (14) are fixedly connected; a speaker ring (43) is fixedly connected to the end of the filter screen (14), and the opening of the speaker ring (43) is arranged toward the filter plate (16); a connecting column is fixedly connected to the rotating column (22) through a triangular block; a knocking ball (44) is fixedly connected to a group of the connecting columns; a group of inclined blocks (45) are fixedly connected to the inner wall of the filter screen (14), and the knocking ball (44) and the inclined block (45) are positioned correspondingly.

5. The fresh air system suitable for medical plasma according to claim 4, characterized in that: The top of the box body (1) is fixedly connected to a water tank (52); a push plate is sealed and slidably connected inside the water tank (52); a push column (53) is fixedly connected to the side wall of the push plate, and the push column (53) passes through the water tank (52) and is fixedly connected to a fixed plate (54); a spring is fixedly connected between the fixed plate (54) and the opposite side wall of the water tank (52); a water inlet pipe (55) is fixedly connected to the top of the water tank (52); a one-way valve is provided on the water inlet pipe (55). valve; a U-tube (56) is fixedly connected to the side wall of the water tank (52); one end of the U-tube (56) passes through the box body (1) and is fixedly connected to a triangular tube (57), and the triangular tube (57) passes through the bent tube (31); a group of nozzles are fixedly connected to the side wall of the triangular tube (57) through a group of injection slots, and the nozzles are located in the bent tube (31); a power piece is provided on the top of the box body (1); and the fixed plate (54) is driven to move back and forth by the power piece.

6. The fresh air system suitable for medical plasma according to claim 5, characterized in that: The power component comprises a motor (5); the motor (5) is fixedly connected to the side wall of the first cavity (11); a first gear (51) is fixedly connected to the output end of the motor (5) and the rotating cover (15), and the pair of first gears (51) are meshed with each other; a pair of fixed blocks are fixedly connected to the top of the box body (1); a rotating rod (6) is rotatably connected between the pair of fixed blocks; a second gear (61) is fixedly connected to the rotating rod (6), and the second gear (61) is meshed with the first gear (51) at the proximal end of the motor (5); a cam (62) is fixedly connected to the rotating rod (6), and the push plate and the cam (62) are in contact.

7. The fresh air system suitable for medical plasma according to claim 6, characterized in that: A transmission rod (7) is rotatably connected between the first plate (12) and the second plate (13) via a pair of third circular grooves; a first sprocket (71) is fixedly connected to one end of the transmission rod (7) and the rotating cover (15); the pair of first sprockets (71) are driven by a first chain (72); the lower end of the bending tube (31) is rotatably connected to a group of rotating tubes (73) via a connecting groove; a twisting block (74) is fixedly connected inside the rotating tube (73), and the position of the twisting block (74) and the triangular tube (57) corresponds to each other; a second sprocket (75) is fixedly connected to the other end of the rotating tube (73) and the transmission rod (7); a group of second sprockets (75) are driven by a second chain (76).

8. The fresh air system suitable for medical plasma according to claim 7, characterized in that: The cross section of the filter plate (16) is inverted convex; a pair of fixing rods (8) are fixed to the bottom of the first cavity (11); the top of the pair of fixing rods (8) are fixed to an arc block (81); the bottom of the arc block (81) is fixed to an arc groove (82); a double arc block (83) is slidably connected to the fixing rod (8), and the top of the double arc block (83) is adapted to the arc groove (82); a fixing ring (84) is fixed to the fixing rod (8); square grooves are provided on both side walls of the filter plate (16); a pair of sliding blocks (85) are fixed to the side walls of the square grooves through springs; a ball block (86) is fixed to the side wall of the sliding block (85); a pair of square through grooves are provided at the bottom of the filter plate (16); a pair of springs are fixed to the top of the first cavity (11), and the springs are in contact with the square through grooves.

9. The fresh air system suitable for medical plasma according to claim 8, characterized in that: The first plate (12) and the second plate (13) are both fixedly connected to the opposite side walls with a first magnetic block (9); the side walls on both sides of the filter plate (16) are both provided with a through groove (91); the tops of a pair of the through grooves (91) are both fixedly connected to a pleated curtain (92); the bottoms of the pleated curtains (92) are fixedly connected to a second magnetic block (93), and the first magnetic block (9) and the second magnetic block (93) are magnetically attracted to each other.

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