Hospital air purification and sterilization device

Abstract

The application discloses a hospital air purification and sterilization device, and particularly relates to the technical field of air purification, which comprises a first air guide box, a first lane changing mechanism is fixedly installed at one end of the first air guide box, a second lane changing mechanism is arranged on the side of the first lane changing mechanism away from the first air guide box, and the first lane changing mechanism and the second lane changing mechanism are symmetrically distributed. The first air guide box, the second air guide box and the first purification mechanism form a first purification channel, and the first air guide box, the third air guide box and the second purification mechanism form a second purification channel. The two purification channels are arranged, the purification channels can be flexibly switched, the replacement frame and the filter in the installation frame at the bottom position can be disassembled and replaced without affecting the continuous air filtration, and the air purification effect of the whole device is improved.

Description

Technical Field

[0001] This invention relates to the field of air purification technology, specifically to an air purification and sterilization device for hospitals. Background Technology

[0002] Indoor air microbial contamination is a significant factor contributing to hospital-acquired infections, seriously threatening the health of hospital staff and patients. Air is a medium for the transmission of many diseases; therefore, eliminating and controlling airborne pathogens is of paramount importance for preventing and controlling hospital-acquired infections.

[0003] Air purification methods in hospitals can be categorized by principle into filtration, electrostatic discharge, and photocatalysis. Germs and viruses in hospitals spread via aerosols attached to microparticles. Micron- or submicron-sized aerosols can be effectively filtered by barrier-type high-efficiency filters. Installing barrier-type high-efficiency filters downstream of the air conditioning system can effectively filter the spread of bacteria and viruses in the air.

[0004] After prolonged use, hospital air purification and sterilization devices require timely and regular filter replacement. When replacing the filter, the device must be shut down and restarted only after the new filter has been installed. When the device is shut down, the air in the hospital remains ineffectively purified and sterilized for a period of time, increasing the risk of airborne pathogens and reducing the health and safety of hospital staff and patients. Therefore, we propose a hospital air purification and sterilization device to address these issues. Summary of the Invention

[0005] The purpose of this invention is to provide an air purification and sterilization device for hospitals to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an air purification and sterilization device for hospitals, comprising a first air guide box, a first switching mechanism fixedly installed at one end of the first air guide box, a second switching mechanism provided on the side of the first switching mechanism away from the first air guide box, the first switching mechanism and the second switching mechanism being symmetrically distributed, a second air guide box fixedly installed on one side of each of the first switching mechanism and the second switching mechanism, a third air guide box fixedly installed on the side of each of the first switching mechanism and the second switching mechanism away from the second air guide box, a first purification mechanism fixedly installed between the two second air guide boxes, a second purification mechanism fixedly installed between the two third air guide boxes, a sterilization mechanism fixedly installed at the end of the second switching mechanism away from the first switching mechanism, a drying mechanism fixedly installed at the end of the sterilization mechanism away from the second switching mechanism, and a fixing frame fixedly installed at the top of the first air guide box, the second air guide box, the third air guide box, the sterilization mechanism and the drying mechanism.

[0007] Preferably, the first purification mechanism includes a purification outer cylinder, the top of which has ventilation slots. Two ventilation slots are provided, and a fourth air guide box is fixedly installed in each of the two ventilation slots. The first purification mechanism is fixedly installed to a corresponding second air guide box via the two fourth air guide boxes. A conversion shaft is rotatably installed in the middle of the purification outer cylinder. A partition plate is fixedly sleeved on the outer side of the conversion shaft. The partition plate is movably engaged in the purification outer cylinder. First sealing elements are fixedly installed at both ends of the partition plate, and the first sealing elements contact the inner wall of the purification outer cylinder. Two symmetrically distributed mounting frames are vertically installed in the middle of the partition plate. Each mounting frame is equipped with a replaceable frame, and a filter is fixedly installed in the middle of each replaceable frame. A second seal is fixedly installed at the opposite end of each replaceable frame, and the second seal contacts the inner wall of the outer purification cylinder. A third seal is fixedly installed on the outer wall of the partition plate and the mounting frame, and the third seal contacts the inner wall of the outer purification cylinder. One end of the conversion shaft extends out of the outer side of the outer purification cylinder and is fixedly installed with a driven gear. A crown gear is meshed with the top of the driven gear. A drive shaft is fixedly installed in the middle of the crown gear. An auxiliary frame is rotatably installed on the outer side of the drive shaft, and the auxiliary frame is fixedly installed on the outer wall of the outer purification cylinder.

[0008] Preferably, the bottom of the purification outer cylinder is provided with a disassembly groove, a sealing frame is movably engaged in the disassembly groove, a disassembly handle is fixedly installed at the bottom of the sealing frame, a connecting bolt is threadedly installed on the outer bottom of the purification outer cylinder, and the end thread of the connecting bolt is installed in the sealing frame.

[0009] Preferably, a sealing slide is fixedly installed on the outer side of the replacement frame, and a sealing groove corresponding to the sealing slide is opened on the inner side of the mounting frame. The sealing slide is detachably snapped into the sealing groove. Fixing bolts are movably inserted into the opposite ends of the replacement frame. The ends of the fixing bolts are threaded onto the corresponding mounting frames. Handle grooves are opened on the opposite ends of the replacement frame.

[0010] Preferably, the structure of the second purification mechanism is the same as that of the first purification mechanism, and the second purification mechanism is fixedly installed with the corresponding third air guide box through two fourth air guide boxes respectively.

[0011] Preferably, the first lane-changing mechanism includes a lane-changing central cylinder. A fifth air guide box is integrally formed on one side of the lane-changing central cylinder. The end of the fifth air guide box away from the lane-changing central cylinder is fixedly installed with one end of the first air guide box. A sixth air guide box and a seventh air guide box are integrally formed on the side of the lane-changing central cylinder away from the fifth air guide box. The sixth and seventh air guide boxes are symmetrically distributed. The first lane-changing mechanism is fixedly installed with one end of the sixth air guide box away from the lane-changing central cylinder and one end of the corresponding second air guide box. The first lane-changing mechanism is fixedly installed with one end of the seventh air guide box away from the lane-changing central cylinder and one end of the corresponding third air guide box. A lane-changing shaft is rotatably installed in the middle of the lane-changing central cylinder. A lane-changing partition is fixedly sleeved on the outer side of the lane-changing shaft. The lane-changing partition is movably engaged in the lane-changing central cylinder. A fourth sealing element is fixedly installed on the outer wall of the lane-changing partition. The fourth sealing element is in contact with the inner wall of the lane-changing central cylinder.

[0012] Preferably, the first and second lane-changing mechanisms have the same structure. The second lane-changing mechanism is fixedly installed through the end of the sixth air guide box away from the middle cylinder of the lane-changing mechanism and the end corresponding to the second air guide box. The second lane-changing mechanism is also fixedly installed through the end of the seventh air guide box away from the middle cylinder of the lane-changing mechanism and the end corresponding to the third air guide box. An auxiliary shaft is rotatably installed at the top of the middle cylinder of the lane-changing mechanism. A transmission gear is fixedly sleeved on the top of the lane-changing shaft and the middle of the auxiliary shaft of the second lane-changing mechanism. The two transmission gears are meshed and connected.

[0013] Preferably, a first pulley transmission group is fixedly sleeved between the switching shaft in the first switching mechanism and the auxiliary shaft in the second switching mechanism; a second pulley transmission group is fixedly sleeved between the switching shaft in the first switching mechanism and the drive shaft in the first purification mechanism; a third pulley transmission group is fixedly sleeved between the switching shaft in the first switching mechanism and the drive shaft in the second purification mechanism; a drive motor is fixedly installed at the top end of the switching cylinder in the first switching mechanism; and the drive end of the drive motor is fixedly installed at the top end of the switching shaft in the first switching mechanism.

[0014] Preferably, the sterilization mechanism includes a sterilization air duct, which is fixedly installed at the end of the fifth air guide box in the second switching mechanism away from the switching cylinder. A liquid collection tank is fixedly installed at the bottom center of the sterilization air duct. A mist exhaust frame vertically corresponding to the position of the liquid collection tank is fixedly installed on the upper surface of the inner wall of the sterilization air duct. A plurality of evenly distributed mist exhaust holes are opened at the bottom of the mist exhaust frame. Two symmetrically distributed connecting pipes are fixedly installed at the top of the mist exhaust frame. The connecting pipes movably pass through the sterilization air duct. A feed conduit is fixedly installed at the top of the connecting pipe. A ventilation adsorption frame is fixedly installed on the side of the sterilization air duct away from the second switching mechanism. A drain pipe is fixedly clamped at the bottom of the liquid collection tank. A valve is fixedly installed at the end of the drain pipe.

[0015] Preferably, the drying mechanism includes a drying air duct, and the drying air duct and the sterilization air duct are fixedly installed. Multiple sets of mounting brackets are fixedly installed in the drying air duct, and multiple drying lamps are fixedly installed on each set of mounting brackets.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. By setting up a first purification mechanism and a second purification mechanism with identical structures, and using a first channel switching mechanism and a second channel switching mechanism with identical structures, the first air guide box, the second air guide box, and the first purification mechanism form a first purification channel, and the first air guide box, the third air guide box, and the second purification mechanism form a second purification channel. By setting up two purification channels, it is easy to flexibly switch between purification channels, and it is convenient to remove the replacement frame and filter in the bottom mounting frame for replacement without affecting the continuous air filtration, thereby improving the air purification effect of the entire device.

[0018] 2. By setting up a sterilization mechanism, the filtered and purified air can be sterilized simultaneously. After sterilization, the air is odor-absorbing through a ventilation adsorption frame, making the sterilized air odorless.

[0019] 3. By setting up a drying mechanism, the air after odor adsorption is introduced into the drying duct and comes into contact with multiple drying lamps for synchronous drying, so that the air after sterilization is dry and can be easily recycled. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the structural connections after partial structural disassembly in this invention.

[0023] Figure 3 This is a schematic diagram of the structural connection of the first purification mechanism in this invention.

[0024] Figure 4 This is another structural connection diagram of the first purification mechanism in this invention.

[0025] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle.

[0026] Figure 6 This is a partial structural connection diagram of the first purification mechanism in this invention.

[0027] Figure 7 For the present invention Figure 6 Enlarged view at point B in the middle.

[0028] Figure 8 This is a schematic diagram of the structural connection of the first lane-changing mechanism in this invention.

[0029] Figure 9 This is a schematic diagram of the structural connection of the second lane-changing mechanism in this invention.

[0030] Figure 10 This is a schematic diagram of the structural connections of the sterilization mechanism in this invention.

[0031] Figure 11 This is a schematic diagram of the structural connection of the drying mechanism in this invention.

[0032] In the diagram: 1. First air guide box; 2. First switching mechanism; 3. Second switching mechanism; 4. Second air guide box; 5. Third air guide box; 6. First purification mechanism; 7. Second purification mechanism; 8. Sterilization mechanism; 9. Drying mechanism; 10. Fixing frame; 11. First belt pulley drive group; 12. Second belt pulley drive group; 13. Third belt pulley drive group; 14. Drive motor; 61. Purification outer cylinder; 601. Ventilation slot; 62. Fourth air guide box; 63. Conversion shaft; 631. Driven gear; 632. Crown gear; 633. Drive shaft; 634. Auxiliary frame; 64. Partition plate; 641. First seal; 642. Third seal; 65. Mounting frame; 651. Sealing groove; 66. Replacement frame; 661. Sealing slide; 662. Handle groove; 67. Filter; 68. Second seal; 69. Fixing bolt; 602. Disassembly through groove; 610. Sealing frame; 611. Disassembly handle; 612. Connecting bolt; 21. Channel changer cylinder; 22. Fifth air guide box; 23. Sixth air guide box; 24. Seventh air guide box; 25. Channel changer shaft; 26. Channel changer partition; 31. Auxiliary shaft; 32. Transmission gear; 81. Sterilization air duct; 82. Liquid collection tank; 83. De-misting frame; 831. De-misting perforation; 84. Connecting pipe; 85. Feed conduit; 86. Ventilation adsorption frame; 87. Pipeline; 88. Valve; 91. Drying air duct; 92. Mounting bracket; 93. Drying lamp. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example: Figure 1-11 As shown, the present invention provides an air purification and sterilization device for hospitals, including a first air guide box 1. A first channel switching mechanism 2 is fixedly installed at one end of the first air guide box 1. A second channel switching mechanism 3 is provided on the side of the first channel switching mechanism 2 away from the first air guide box 1. The first channel switching mechanism 2 and the second channel switching mechanism 3 are symmetrically distributed. A second air guide box 4 is fixedly installed on one side of each of the first channel switching mechanism 2 and the second channel switching mechanism 3. A third air guide box 5 is fixedly installed on the side of each of the first channel switching mechanism 2 and the second channel switching mechanism 3 away from the second air guide box 4. A first purification mechanism 6 is fixedly installed between the two second air guide boxes 4, and a second purification mechanism 7 is fixedly installed between the two third air guide boxes 5. A sterilization mechanism 8 is fixedly installed at the end of the second switching mechanism 3 away from the first switching mechanism 2, and a drying mechanism 9 is fixedly installed at the end of the sterilization mechanism 8 away from the second switching mechanism 3. A fixing frame 10 is fixedly installed at the top of the first air guide box 1, the second air guide box 4, the third air guide box 5, the sterilization mechanism 8, and the drying mechanism 9. The entire air purification and sterilization device is installed on the hospital ceiling using the fixing frame 10.

[0035] The first purification mechanism 6 includes a purification outer cylinder 61. A ventilation slot 601 is provided at the top of the purification outer cylinder 61. Two ventilation slots 601 are provided, and a fourth air guide box 62 is fixedly installed in each of the two ventilation slots 601. The first purification mechanism 6 communicates with the second air guide box 4 and the first purification mechanism 6 through the two fourth air guide boxes 62, respectively. A conversion shaft 63 is rotatably installed in the middle of the purification outer cylinder 61. A partition plate 64 is fixedly sleeved on the outer side of the conversion shaft 63. The partition plate 64 is movably engaged in the purification outer cylinder 61. First sealing elements 641 are fixedly installed at both ends of the partition plate 64, and the first sealing elements 641 contact the inner wall of the purification outer cylinder 61. Two symmetrically distributed mounting frames 65 are vertically installed in the middle of the partition plate 64. Each mounting frame 65 contains... The active card is equipped with a replacement frame 66. A second sealing element 68 is fixedly installed on each opposite end of the replacement frame 66. The second sealing element 68 contacts the inner wall of the purification outer cylinder 61. A third sealing element 642 is fixedly installed on the outer walls of the partition plate 64 and the mounting frame 65. The third sealing element 642 contacts the inner wall of the purification outer cylinder 61. By setting the first sealing element 641, the second sealing element 68, and the third sealing element 642, the partition plate 64, the mounting frame 65, the replacement frame 66, and the purification outer cylinder 61 are sealed. The partition plate 64 seals and separates the upper and lower parts of the purification outer cylinder 61 without affecting the rotation of the drive conversion shaft 63, which rotates the partition plate 64, the mounting frame 65, and the replacement frame 66 within the purification outer cylinder 61, allowing for the flipping of the upper and lower mounting frames 65 and the replacement frame 66, facilitating flexible changes in the position of the two replacement frames 66.

[0036] Each replacement frame 66 is fixedly equipped with a filter 67 in the middle, and the air in the hospital is filtered and purified by the filter 67 at the top of the purification outer cylinder 61.

[0037] One end of the conversion shaft 63 extends out of the outer side of the purification outer cylinder 61 and is fixedly mounted with a driven gear 631. The top of the driven gear 631 is meshed with a crown gear 632. The middle of the crown gear 632 is fixedly mounted with a drive shaft 633. An auxiliary frame 634 is rotatably mounted on the outer side of the drive shaft 633. The auxiliary frame 634 is fixedly mounted on the outer wall of the purification outer cylinder 61. By driving the drive shaft 633 to rotate, the crown gear 632 drives the driven gear 631 to rotate, which in turn drives the conversion shaft 63 to rotate.

[0038] The bottom of the purification outer cylinder 61 is provided with a disassembly groove 602, in which a sealing frame 610 is movably engaged. A disassembly handle 611 is fixedly installed at the bottom of the sealing frame 610. A connecting bolt 612 is threadedly installed on the outer bottom of the purification outer cylinder 61, and the end of the connecting bolt 612 is threaded into the sealing frame 610. By disassembling the connecting bolt 612 and holding the disassembly handle 611, the sealing frame 610 can be removed from the disassembly groove 602. This facilitates the subsequent removal and replacement of the replacement frame 66 and filter 67 in the bottom mounting frame 65 without affecting continuous air filtration, thereby improving the overall performance of the device.

[0039] A sealing slide 661 is fixedly installed on the outer side of the replacement frame 66. A sealing groove 651 corresponding to the sealing slide 661 is opened on the inner side of the mounting frame 65. The sealing slide 661 is detachably snapped into the sealing groove 651. A fixing bolt 69 is movably inserted into the opposite end of the replacement frame 66. The end of the fixing bolt 69 is threaded onto the corresponding mounting frame 65. A handle groove 662 is opened on the opposite end of the replacement frame 66. By removing the fixing bolt 69, the handle groove 662 can be inserted into the handle groove 662 to facilitate the removal of the replacement frame 66 and filter 67 from the mounting frame 65 through the disassembly through groove 602 for maintenance of the replacement frame 66 and filter 67.

[0040] The structure of the second purification mechanism 7 is the same as that of the first purification mechanism 6. The second purification mechanism 7 is fixedly installed with the corresponding third air guide box 5 through two fourth air guide boxes 62 respectively.

[0041] By setting up a first purification mechanism 6 and a second purification mechanism 7 with the same structure, the first air guide box 1, the second air guide box 4, and the first purification mechanism 6 form a first purification channel, and the first air guide box 1, the third air guide box 5, and the second purification mechanism 7 form a second purification channel. By setting up two purification channels, it is convenient to flexibly switch between purification channels and to easily replace the replacement box 66 and filter 67 in the bottom mounting frame 65 without affecting the continuous air filtration.

[0042] The first switching mechanism 2 includes a switching cylinder 21. A fifth air guide box 22 is integrally formed on one side of the switching cylinder 21. The end of the fifth air guide box 22 away from the switching cylinder 21 is fixedly installed with one end of the first air guide box 1. A sixth air guide box 23 and a seventh air guide box 24 are integrally formed on the side of the switching cylinder 21 away from the fifth air guide box 22. The sixth air guide box 23 and the seventh air guide box 24 are symmetrically distributed. The first switching mechanism 2 is fixedly installed with one end of the sixth air guide box 23 away from the switching cylinder 21 and one end of the corresponding second air guide box 4. The first switching mechanism 2 is fixedly installed with one end of the seventh air guide box 24 away from the switching cylinder 21 and one end of the corresponding third air guide box 5, thereby connecting the first switching mechanism 2 with the first purification channel and the second purification channel. A switching mechanism is rotatably installed in the middle of the switching cylinder 21. A diverter shaft 25 is fixedly fitted with a diverter partition 26 on its outer side. The diverter partition 26 is movably engaged in the diverter cylinder 21. A fourth sealing element is fixedly installed on the outer wall of the diverter partition 26, and the fourth sealing element contacts the inner wall of the diverter cylinder 21. When the diverter shaft 25 is driven to rotate, the diverter partition 26 rotates in the diverter cylinder 21. When the diverter partition 26 rotates between the fifth air guide box 22 and the seventh air guide box 24, the fifth air guide box 22 and the sixth air guide box 23 are connected, the second purification channel is closed, and the first purification channel is opened. When the diverter shaft 25 is driven to rotate in the opposite direction, the diverter partition 26 rotates in the opposite direction in the diverter cylinder 21. When the diverter partition 26 rotates between the fifth air guide box 22 and the sixth air guide box 23, the fifth air guide box 22 and the seventh air guide box 24 are connected, the first purification channel is closed, and the second purification channel is opened.

[0043] The first lane-changing mechanism 2 and the second lane-changing mechanism 3 have the same structure. The second lane-changing mechanism 3 is fixedly installed at one end of the sixth air guide box 23 away from the lane-changing cylinder 21 and at one end of the corresponding second air guide box 4. The second lane-changing mechanism 3 is also fixedly installed at one end of the seventh air guide box 24 away from the lane-changing cylinder 21 and at one end of the corresponding third air guide box 5. An auxiliary shaft 31 is rotatably installed at the top of the lane-changing cylinder 21 in the second lane-changing mechanism 3. A transmission gear 32 is fixedly sleeved on the top of the lane-changing shaft 25 and the middle of the auxiliary shaft 31 in the second lane-changing mechanism 3. The two transmission gears 32 are meshed and connected. By driving the auxiliary shaft 31 to rotate, the two transmission gears 32 are engaged. The meshing transmission of 2 drives the reversing shaft 25 in the second reversing mechanism 3 to rotate in the opposite direction. When the reversing partition 26 in the second reversing mechanism 3 rotates between the fifth air guide box 22 and the seventh air guide box 24, the fifth air guide box 22 and the sixth air guide box 23 are connected, the second purification channel is closed, and the first purification channel is opened. By driving the auxiliary shaft 31 to rotate in the opposite direction, and cooperating with the meshing transmission of the two transmission gears 32, the reversing shaft 25 in the second reversing mechanism 3 is driven to rotate in the forward direction. When the reversing partition 26 in the second reversing mechanism 3 rotates between the fifth air guide box 22 and the sixth air guide box 23, the fifth air guide box 22 and the seventh air guide box 24 are connected, the first purification channel is closed, and the second purification channel is opened.

[0044] A first belt pulley transmission group 11 is fixedly sleeved between the switching shaft 25 in the first switching mechanism 2 and the auxiliary shaft 31 in the second switching mechanism 3. A second belt pulley transmission group 12 is fixedly sleeved between the switching shaft 25 in the first switching mechanism 2 and the drive shaft 633 in the first purification mechanism 6. A third belt pulley transmission group 13 is fixedly sleeved between the switching shaft 25 in the first switching mechanism 2 and the drive shaft 633 in the second purification mechanism 7. A drive motor 14 is fixedly installed at the top of the switching cylinder 21 in the first switching mechanism 2. The drive end of the drive motor 14 is fixedly installed at the top of the switching shaft 25 in the first switching mechanism 2. By controlling the start of the drive motor 14, the switching shaft 25 in the first switching mechanism 2 is driven to rotate. The first belt pulley transmission group 11 drives the auxiliary shaft 31 in the second switching mechanism 3 to rotate synchronously. The second belt pulley transmission group 12 drives the drive shaft 633 in the first purification mechanism 6 to rotate synchronously. The third belt pulley transmission group 13 drives the drive shaft 633 in the second purification mechanism 7 to rotate synchronously.

[0045] The sterilization mechanism 8 includes a sterilization air duct 81, which is fixedly installed at the end of the fifth air guide box 22 in the second switching mechanism 3 away from the switching cylinder 21. A liquid collection tank 82 is fixedly installed at the bottom center of the sterilization air duct 81. A mist exhaust frame 83, vertically corresponding to the position of the liquid collection tank 82, is fixedly installed on the upper surface of the inner wall of the sterilization air duct 81. A plurality of evenly distributed mist exhaust holes 831 are opened at the bottom of the mist exhaust frame 83. Two symmetrically distributed connecting pipes 84 are fixedly installed at the top of the mist exhaust frame 83. The connecting pipes 84 movably pass through the sterilization air duct 81. A feed conduit 85 is fixedly installed at the top of the connecting pipes 84. In use, the feed conduit 85 and the atomized hydrogen peroxide sterilizing agent output system are connected. The output end is connected, and a ventilation adsorption frame 86 is fixedly installed on the side of the sterilization duct 81 away from the second diversion mechanism 3. A drain pipe 87 is fixedly clipped at the bottom of the liquid collection tank 82, and a valve 88 is fixedly installed at the end of the drain pipe 87. After the air in the hospital is filtered and purified, it is introduced into the sterilization duct 81. Then, the atomized hydrogen peroxide sterilizing agent output system is turned on. The atomized hydrogen peroxide sterilizing agent is introduced into the mist exhaust frame 83 through the connecting pipe 84 and the feed pipe 85, and is evenly discharged into the sterilization duct 81 through multiple mist exhaust perforations 831 to mix with the filtered and purified air, and the air is simultaneously sterilized. The sterilized air is then adsorbed by the ventilation adsorption frame 86 to make the sterilized air odorless.

[0046] The drying mechanism 9 includes a drying air duct 91, which is fixedly installed with a sterilization air duct 81. Multiple sets of mounting brackets 92 are fixedly installed in the drying air duct 91, and multiple drying lamps 93 are evenly distributed on each set of mounting brackets 92. The air after odor adsorption is introduced into the drying air duct 91 and comes into contact with the multiple drying lamps 93 to perform synchronous drying of the air, so that the air after sterilization becomes dry and facilitates the circulation of air.

[0047] Working principle: The entire air purification and sterilization device is installed on the hospital ceiling using the mounting bracket 10, and the feed conduit 85 is connected to the output end of the atomized hydrogen peroxide sterilizing agent output system;

[0048] By setting up a first purification mechanism 6 and a second purification mechanism 7 with the same structure, the first air guide box 1, the second air guide box 4, and the first purification mechanism 6 form a first purification channel, and the first air guide box 1, the third air guide box 5, and the second purification mechanism 7 form a second purification channel.

[0049] In the initial state, the diversion partition 26 is located between the fifth air guide box 22 and the seventh air guide box 24, the fifth air guide box 22 and the sixth air guide box 23 are connected, the second purification channel is closed, and the first purification channel is open.

[0050] The partition plate 64 seals and separates the upper and lower parts of the purification outer cylinder 61;

[0051] The air inside the hospital is introduced into the first purification unit 6 through the first purification channel and is filtered and purified by the top filter 67 of the outer purification cylinder 61.

[0052] After being filtered and purified, the air is introduced into the sterilization duct 81. The atomized hydrogen peroxide sterilizing agent output system is then activated. The atomized hydrogen peroxide sterilizing agent is introduced into the mist exhaust frame 83 through the connecting pipe 84 and the feed pipe 85, and is evenly discharged into the sterilization duct 81 through multiple mist exhaust perforations 831 to mix with the filtered and purified air, thus simultaneously sterilizing the air. The sterilized air then passes through the ventilation adsorption frame 86 to adsorb odors, making the sterilized air odorless.

[0053] After odor absorption, the air is introduced into the drying duct 91 and comes into contact with multiple drying lamps 93 for simultaneous drying, making the sterilized air dry and facilitating air circulation.

[0054] After a period of use, the filter 67 at the top of the first purification channel needs to be replaced. At this time, the drive motor 14 is turned on to drive the switching shaft 25 in the first switching mechanism 2 to rotate. The first belt pulley transmission group 11 drives the auxiliary shaft 31 in the second switching mechanism 3 to rotate synchronously. The second belt pulley transmission group 12 drives the drive shaft 633 in the first purification mechanism 6 to rotate synchronously. The third belt pulley transmission group 13 drives the drive shaft 633 in the second purification mechanism 7 to rotate synchronously.

[0055] By driving the reversing shaft 25 in the first reversing mechanism 2 to rotate in the opposite direction, the reversing partition 26 is driven to rotate in the opposite direction in the reversing cylinder 21. The reversing partition 26 rotates to the space between the fifth air guide box 22 and the sixth air guide box 23, and the fifth air guide box 22 and the seventh air guide box 24 are connected. The first purification channel is closed and the second purification channel is opened. At the same time, the reversing shaft 25 in the second reversing mechanism 3 is driven to rotate, and the reversing partition 26 in the second reversing mechanism 3 rotates to the space between the fifth air guide box 22 and the sixth air guide box 23. The fifth air guide box 22 and the seventh air guide box 24 are connected. The first purification channel is closed and the second purification channel is opened.

[0056] Simultaneously, by driving the drive shaft 633 in the first purification mechanism 6 and the second purification mechanism 7 to rotate, the crown gear 632 drives the driven gear 631 to rotate, which in turn drives the conversion shaft 63 to rotate, causing the partition plate 64, mounting frame 65, and replacement frame 66 to rotate in the purification outer cylinder 61, thus flipping the upper and lower mounting frames 65 and replacement frames 66 and flexibly changing the positions of the two replacement frames 66. The new filter 67 at the bottom position in the first purification channel is rotated to the top position, and the old filter 67 at the top position in the first purification channel is rotated to the bottom position. Similarly, the new filter 67 at the bottom position in the second purification channel is rotated to the top position, and the old filter 67 at the top position in the second purification channel is rotated to the bottom position. Air can be continuously filtered and purified through the filter 67 at the top position in the second purification channel without the need to stop the device.

[0057] Simultaneously, remove the connecting bolts 612, grasp the disassembly handle 611, remove the sealing frame 610 from the disassembly groove 602, and remove the fixing bolts 69. Insert your hand into the handle groove 662 to facilitate the removal of the replacement frame 66 and filter 67 from the mounting frame 65 through the disassembly groove 602 for maintenance of the replacement frame 66 and filter 67. This allows for the removal and replacement of the replacement frame 66 and filter 67 from the mounting frame 65 at the bottom position without affecting continuous air filtration.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hospital air purification and sterilization device, comprising a first air delivery box (1), characterized in that: A first switching mechanism (2) is fixedly installed at one end of the first air guide box (1). A second switching mechanism (3) is provided on the side of the first switching mechanism (2) away from the first air guide box (1). The first switching mechanism (2) and the second switching mechanism (3) are symmetrically distributed. A second air guide box (4) is fixedly installed on one side of both the first switching mechanism (2) and the second switching mechanism (3). A third air guide box (5) is fixedly installed on the side of both the first switching mechanism (2) and the second switching mechanism (3) away from the second air guide box (4). A first purification mechanism (6) is fixedly installed between the two air guide boxes (4), a second purification mechanism (7) is fixedly installed between the two third air guide boxes (5), a sterilization mechanism (8) is fixedly installed at the end of the second switching mechanism (3) away from the first switching mechanism (2), a drying mechanism (9) is fixedly installed at the end of the sterilization mechanism (8) away from the second switching mechanism (3), and a fixing frame (10) is fixedly installed at the top of the first air guide box (1), the second air guide box (4), the third air guide box (5), the sterilization mechanism (8) and the drying mechanism (9); The first purification mechanism (6) includes a purification outer cylinder (61). A ventilation slot (601) is provided on the top of the purification outer cylinder (61). There are two ventilation slots (601), and a fourth air guide box (62) is fixedly installed in each of the two ventilation slots (601). The first purification mechanism (6) is fixedly installed with the corresponding second air guide box (4) through the two fourth air guide boxes (62). A conversion shaft (63) is rotatably installed in the middle of the purification outer cylinder (61). A partition plate (64) is fixedly sleeved on the outside of the conversion shaft (63). The partition plate (64) is movably engaged in the purification outer cylinder (61). A first sealing element (641) is fixedly installed at both ends of the partition plate (64). The first sealing element (641) is in contact with the inner wall of the purification outer cylinder (61). Two symmetrically distributed mounting frames (65) are vertically installed in the middle of the partition plate (64). Each mounting frame (65) is movably engaged in the middle of the partition plate (64). The moving card is equipped with a replacement frame (66), and a filter (67) is fixedly installed in the middle of the replacement frame (66). A second seal (68) is fixedly installed at the opposite ends of the replacement frame (66). The second seal (68) is in contact with the inner wall of the purification outer cylinder (61). A third seal (642) is fixedly installed on the outer wall of the partition plate (64) and the mounting frame (65). The third seal (642) is in contact with the inner wall of the purification outer cylinder (61). One end of the conversion shaft (63) extends out of the outer side of the purification outer cylinder (61) and is fixedly installed with a driven gear (631). A crown gear (632) is meshed with the top of the driven gear (631). A drive shaft (633) is fixedly installed in the middle of the crown gear (632). An auxiliary frame (634) is rotatably installed on the outer side of the drive shaft (633). The auxiliary frame (634) is fixedly installed on the outer wall of the purification outer cylinder (61). The first lane-changing mechanism (2) includes a lane-changing cylinder (21). A fifth air guide box (22) is integrally formed on one side of the lane-changing cylinder (21). The end of the fifth air guide box (22) away from the lane-changing cylinder (21) is fixedly installed with the end of the first air guide box (1). A sixth air guide box (23) and a seventh air guide box (24) are integrally formed on the side of the lane-changing cylinder (21) away from the fifth air guide box (22). The sixth air guide box (23) and the seventh air guide box (24) are symmetrically distributed. The first lane-changing mechanism (2) is connected to the lane-changing cylinder (21) away from the sixth air guide box (23). One end of the first switching mechanism (2) is fixedly installed with the corresponding end of the second air guide box (4). The first switching mechanism (2) is fixedly installed with the end of the seventh air guide box (24) away from the switching cylinder (21) and the corresponding end of the third air guide box (5). A switching shaft (25) is rotatably installed in the middle of the switching cylinder (21). A switching partition (26) is fixedly sleeved on the outside of the switching shaft (25). The switching partition (26) is movably engaged in the switching cylinder (21). A fourth sealing element is fixedly installed on the outer wall of the switching partition (26). The fourth sealing element is in contact with the inner wall of the switching cylinder (21).

2. The hospital air purification and sterilization device according to claim 1, characterized in that: The bottom of the purification outer cylinder (61) is provided with a disassembly groove (602), and a sealing frame (610) is movably locked in the disassembly groove (602). A disassembly handle (611) is fixedly installed at the bottom of the sealing frame (610). A connecting bolt (612) is threadedly installed on the outer bottom of the purification outer cylinder (61), and the end of the connecting bolt (612) is threadedly installed in the sealing frame (610).

3. The hospital air purification and sterilization device according to claim 2, characterized in that: A sealing slide (661) is fixedly installed on the outer side of the replacement frame (66), and a sealing groove (651) corresponding to the sealing slide (661) is opened on the inner side of the mounting frame (65). The sealing slide (661) is detachably snapped into the sealing groove (651). A fixing bolt (69) is movably inserted into the opposite ends of the replacement frame (66). The end of the fixing bolt (69) is threaded onto the corresponding mounting frame (65). A handle groove (662) is opened on the opposite ends of the replacement frame (66).

4. The hospital air purification and sterilization device according to claim 3, characterized in that: The structure of the second purification mechanism (7) is the same as that of the first purification mechanism (6). The second purification mechanism (7) is fixedly installed with the corresponding third air guide box (5) through two fourth air guide boxes (62).

5. The hospital air purification and sterilization device according to claim 1, characterized in that: The first lane-changing mechanism (2) and the second lane-changing mechanism (3) have the same structure. The second lane-changing mechanism (3) is fixedly installed at one end of the sixth air guide box (23) away from the lane-changing cylinder (21) and at one end of the corresponding second air guide box (4). The second lane-changing mechanism (3) is fixedly installed at one end of the seventh air guide box (24) away from the lane-changing cylinder (21) and at one end of the corresponding third air guide box (5). An auxiliary shaft (31) is rotatably installed at the top of the lane-changing cylinder (21) in the second lane-changing mechanism (3). A transmission gear (32) is fixedly sleeved on the top of the lane-changing shaft (25) and the middle of the auxiliary shaft (31) in the second lane-changing mechanism (3). The two transmission gears (32) are meshed and connected.

6. The hospital air purification and sterilization device according to claim 5, characterized in that: A first belt pulley transmission group (11) is fixedly sleeved between the switching shaft (25) in the first switching mechanism (2) and the auxiliary shaft (31) in the second switching mechanism (3). A second belt pulley transmission group (12) is fixedly sleeved between the switching shaft (25) in the first switching mechanism (2) and the drive shaft (633) in the first purification mechanism (6). A third belt pulley transmission group (13) is fixedly sleeved between the switching shaft (25) in the first switching mechanism (2) and the drive shaft (633) in the second purification mechanism (7). A drive motor (14) is fixedly installed at the top of the switching cylinder (21) in the first switching mechanism (2). The drive end of the drive motor (14) is fixedly installed at the top of the switching shaft (25) in the first switching mechanism (2).

7. The hospital air purification and sterilization device according to claim 5, characterized in that: The sterilization mechanism (8) includes a sterilization air duct (81), which is fixedly installed at the end of the fifth air guide box (22) in the second switching mechanism (3) away from the switching cylinder (21). A liquid collection tank (82) is fixedly installed at the middle of the bottom end of the sterilization air duct (81). A mist exhaust frame (83) vertically corresponding to the position of the liquid collection tank (82) is fixedly installed on the upper surface of the inner wall of the sterilization air duct (81). A plurality of mist exhaust holes (83) are evenly distributed at the bottom end of the mist exhaust frame (83). 1) Two symmetrically distributed connecting pipes (84) are fixedly installed at the top of the mist exhaust frame (83). The connecting pipes (84) movably pass through the sterilization air duct (81). The top of the connecting pipes (84) is fixedly installed with a feed pipe (85). A ventilation adsorption frame (86) is fixedly installed on the side of the sterilization air duct (81) away from the second channel changing mechanism (3). A drain pipe (87) is fixedly clamped at the bottom of the liquid collection tank (82). A valve (88) is fixedly installed at the end of the drain pipe (87).

8. The hospital air purification and sterilization device according to claim 7, characterized in that: The drying mechanism (9) includes a drying air duct (91), and the drying air duct (91) and the sterilization air duct (81) are fixedly installed. Multiple sets of mounting brackets (92) are fixedly installed in the drying air duct (91), and multiple drying lamps (93) are evenly distributed on each set of mounting brackets (92).

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