A purifier for operating rooms

Abstract

The application relates to a purification device for an operating room, and belongs to the technical field of air purification of operating rooms. The device comprises a first ventilation pipe, a clean air pipe and a second ventilation pipe arranged on the top wall of the operating room. The first ventilation pipe is located above the operating bed, the second ventilation pipe is located at the edge of the operating room, the clean air pipe is used for purifying air flowing in from the first ventilation pipe and discharging the purified clean air from the second ventilation pipe, a scraping ring for cleaning the inner wall of the clean air pipe is arranged in the clean air pipe, the scraping ring moves along the axial direction of the clean air pipe, a dust storage box is arranged at the position close to the second ventilation pipe of the clean air pipe, a baffle is arranged at the communication position of the dust storage box and the clean air pipe, the baffle is used for blocking the clean air pipe and the dust storage box, a scraping plate for cleaning the scraping ring is arranged at the upper end of the baffle, the first ventilation pipe is arranged in a lifting mode, the scraping ring moves towards the dust storage box when the first ventilation pipe is lifted, and the scraping plate is driven to descend and clean the scraping ring when the scraping ring is close to the dust storage box. The application has the effect of improving the air cleanliness of the operating room.

Description

Technical Field

[0001] This application relates to the field of operating room air purification technology, and in particular to a purification device for operating rooms. Background Technology

[0002] The operating room is a place where patients undergo surgery and emergency treatment, and it is an important medical technology department in a hospital. Providing a suitable surgical environment for patients during surgery, such as keeping the operating room clean and reducing the concentration of bacteria in the air, helps to reduce the risk of postoperative infection. Therefore, operating room purification is of great significance to hospitals.

[0003] Currently, operating rooms in my country generally use traditional air conditioners or central air conditioning for ventilation. Central air conditioning can regulate the temperature of the operating room and maintain a dry environment while exchanging the air.

[0004] Regarding the aforementioned technologies, traditional air conditioners or central air conditioners accumulate dust after long-term use, and this dust is carried into the operating room during air circulation. The inventors believe that the air circulating in the operating room is not clean enough, which reduces the cleanliness of the operating room. Summary of the Invention

[0005] In order to improve the air cleanliness of the operating room, this application provides a purification device for the operating room.

[0006] This application provides a purification device for operating rooms, which adopts the following technical solution: A purification device for an operating room includes a first ventilation pipe, a clean air pipe, and a second ventilation pipe installed on the ceiling of the operating room. The first ventilation pipe is located above the operating table, and the second ventilation pipe is located at the edge of the operating room. The clean air pipe is used to purify the air introduced from the first ventilation pipe and to discharge the purified clean air from the second ventilation pipe. The clean air pipe is equipped with a scraper ring for cleaning the inner wall of the clean air pipe, and the scraper ring moves along the axial direction of the clean air pipe. A dust collection box is provided at one end of the clean air pipe near the second ventilation pipe. A baffle is provided at the connection between the dust collection box and the clean air pipe. The baffle is used to block the clean air pipe and the dust collection box. A scraper for cleaning the scraper ring is provided at the upper end of the baffle. The first ventilation pipe is adjustable in height. When the first ventilation pipe rises toward the top wall of the operating room, it drives the scraper ring to move toward the ash storage box. When the scraper ring approaches the ash storage box, it drives the scraper and the baffle to descend and drives the scraper to clean the scraper ring.

[0007] By adopting the above technical solution, the first ventilation duct draws air from the operating room, purifies it in the clean air duct, and then discharges the purified air through the second ventilation duct, improving the air cleanliness of the operating room. After the operation, the first ventilation duct rises towards the ceiling of the operating room, reducing the exposed area of ​​the first ventilation duct within the operating room and facilitating cleaning. As the first ventilation duct rises, it drives the scraper ring to move axially along the clean air duct, cleaning the inner wall of the clean air duct and reducing the amount of floating dust and pathogens adhering to the inner wall. When the scraper ring moves close to the ash collection box, the scraper cleans the scraper ring, the scraper ring and baffle descend, the baffle moves into the ash collection box, and the scraper stores the floating dust cleaned on the scraper ring into the ash collection box. When the operating room is put into use, the scraper ring moves toward the first ventilation duct, causing the scraper and baffle to rise. The baffle then isolates the clean air duct from the ash storage box, reducing the possibility of the gas in the clean air duct carrying away the floating dust in the ash storage box during the purification process. This makes the air flowing through the clean air duct cleaner when the operating room is used again, thus improving the air cleanliness in the operating room.

[0008] Preferably, the first ventilation pipe is fitted with a sleeve, and the inner wall of the sleeve is provided with a drive cylinder for driving the first ventilation pipe to rise and fall. The drive cylinder is located at the end of the first ventilation pipe near the clean air pipe, and the outer wall of the first ventilation pipe is slidably connected to the inner wall of the sleeve.

[0009] By adopting the above technical solution, the first ventilation duct can be raised and lowered, bringing it closer to the operating table and improving the efficiency of air extraction from the vicinity of the operating table. It also facilitates pre- and post-operative cleaning of the first ventilation duct, reducing the amount of dust adhering inside and improving air purification, thereby enhancing the air cleanliness within the operating room. When the drive cylinder raises and lowers the first ventilation duct, a scraper ring cleans the inner wall of the clean air duct. After surgery, as the first ventilation duct rises, the scraper ring cleans the inner wall of the clean air duct, improving its cleanliness and thus enhancing its cleanliness for subsequent uses, ultimately improving the air cleanliness within the operating room.

[0010] Preferably, a first screw is provided at one end of the clean air pipe near the ash storage box, the first screw is arranged along the axial direction of the second ventilation pipe, and a first collar is provided on the baffle, the first collar being threadedly connected to the first screw; A gear is fitted on the first screw, and the first screw is fixedly connected to the gear. A rack is provided on the scraper ring to drive the gear to rotate. A magnetic ring is provided inside the scraper ring to attract the scraper ring to move. The scraper is slidably connected to the baffle.

[0011] By adopting the above technical solution, when the scraper ring moves close to the ash collection box, the magnetic ring attracts the scraper blade to the scraper ring, and the rack and gear begin to mesh. The scraper ring continues to move towards the gear, causing the gear and the first screw to rotate. The baffle drives the scraper blade to descend, and the scraper blade cleans the floating dust attached to the scraper ring, scraping the floating dust on the scraper ring into the ash collection box. When used again, the scraper ring returns to the position close to the first ventilation duct. At this time, the scraper blade and baffle rise, and the baffle isolates the ash collection box from the clean air duct, reducing the possibility of the gas carrying dust from the ash collection box when flowing through the clean air duct, improving the cleanliness of the ventilation, and thus improving the air cleanliness in the operating room.

[0012] Preferably, a second screw is provided inside the clean air pipe, the second screw is arranged along the axial direction of the clean air pipe, the scraper ring is threadedly connected to the second screw, a plurality of ultraviolet lamps are provided on the inner wall of the clean air pipe, the scraper ring is provided with a clearance groove for avoiding the ultraviolet lamps, the scraper ring is guided by the ultraviolet lamps and cleans the ultraviolet lamps, and the second screw is driven to rotate when the first ventilation pipe is raised and lowered.

[0013] By adopting the above technical solution, the rotation of the second screw drives the scraper ring to move axially along the clean air tube, cleaning the inner wall of the clean air tube. The ultraviolet lamp disinfects and sterilizes the air flowing through the clean air tube. At the same time, the ultraviolet lamp guides the scraper ring, ensuring that the scraper ring can only move axially along the clean air tube and cannot rotate with the second screw. When the scraper ring passes over the ultraviolet lamp, it cleans the ultraviolet lamp. This reduces the obstruction of ultraviolet rays by dust on the ultraviolet lamp and improves the air purification effect of the ultraviolet lamp.

[0014] Preferably, a first bevel gear is fixedly disposed on the second screw, and the first bevel gear is located at the end of the second screw near the first ventilation pipe; The inner wall of the first ventilation pipe is provided with a second collar, which is located at one end of the first ventilation pipe near the clean air pipe. A third screw is provided inside the first ventilation pipe, which is threadedly connected to the second collar. The third screw is arranged along the axial direction of the first ventilation pipe. A second bevel gear is fixedly provided on the third screw, which is located at one end of the third screw near the clean air pipe. The second bevel gear meshes with the first bevel gear. A support frame for supporting the second screw and the third screw is provided inside the clean air pipe.

[0015] By adopting the above technical solution, after the surgery, the first ventilation duct moves towards the ceiling of the operating room. The second ring drives the third screw to rotate, the third screw drives the second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, and then the second screw rotates. At this time, the scraper ring moves from the first ventilation duct towards the second ventilation duct to clean the inner wall of the clean air duct. Therefore, when the first ventilation duct is raised after the surgery, the scraper ring cleans the inner wall of the clean air duct. When the scraper ring moves close to the ash collection box, the scraper cleans the scraper ring. When the operating room needs to be used again, the first ventilation duct descends, the scraper ring moves towards the first ventilation duct, and the scraper and baffle rise. The baffle isolates the ash collection box from the clean air duct. Cleaning the inner wall of the clean air duct when closing the first ventilation duct makes cleaning the clean air duct more convenient, improves the cleanliness of the clean air duct, and thus improves the air cleanliness in the operating room.

[0016] Preferably, a first filter screen is provided at the end of the first ventilation pipe near the clean air pipe, a first trachea and a second trachea are provided at the end of the first ventilation pipe near the operating table, the first trachea and the second trachea are connected to the operating room, a second filter screen is provided at the end of the first trachea and the second trachea away from the first ventilation pipe, and the first trachea and the second trachea are retractable toward the operating table.

[0017] By adopting the above technical solution, the retractable design of the first and second trachea allows for a wider air extraction coverage and higher efficiency in air exchange within the operating room. The second filter provides initial air purification, while the first filter further filters the extracted air, improving the cleanliness of the air entering the operating room from the second ventilation duct. The retractable design of the first and second trachea towards the operating table brings them closer to the table, improving the efficiency of air extraction from the vicinity of the operating table. It also facilitates cleaning of the second filter before and after surgery, enhancing air purification and thus improving the air cleanliness within the operating room.

[0018] Preferably, both the first ventilation pipe and the second ventilation pipe are equipped with an atomizer and a water tank, and the water tank is connected to the atomizer.

[0019] By adopting the above technical solution, the atomizer atomizes the liquid in the water tank and sprays it into the first ventilation pipe and the second ventilation pipe. The water vapor adsorbs the floating dust in the air, the first activated carbon plate filters and adsorbs the water vapor adsorbed by the floating dust, and the ultraviolet lamp disinfects and sterilizes the air, thereby improving the air cleanliness and thus improving the air cleanliness in the operating room.

[0020] Preferably, the first ventilation pipe is provided with an mounting ring, the mounting ring is rotatably connected to the first ventilation pipe, and both the first air pipe and the second air pipe are fixedly connected to the mounting ring.

[0021] By adopting the above technical solution, the position of the first and second air pipes can be adjusted by rotating the mounting ring, making it suitable for more air extraction needs and improving the practicality of the first and second air pipes. The first and second fans extract air from the operating room, circulate and purify the air, and improve the air cleanliness of the operating room.

[0022] Preferably, the end of the sleeve facing the ceiling of the operating room is provided with an installation frame, and the side of the installation frame facing away from the sleeve is connected to the ceiling of the operating room. The operating room ceiling is provided with a first support rod, and the outer wall of the sleeve is provided with a second support rod that is hinged to the first support rod. When the mounting frame is disconnected from the operating room ceiling, the first support rod and the second support rod are used to support the sleeve. A first activated carbon plate is inserted into the mounting frame, and the first activated carbon plate is detachably mounted to the mounting frame.

[0023] By adopting the above technical solution, the first activated carbon plate inside the installation frame adsorbs odors in the air, improving the comfort of the operating room environment. The first activated carbon plate can be easily replaced by pulling it out of the installation frame, improving the convenience of replacement. Disconnecting the installation frame from the operating room ceiling and rotating the sleeve, which separates the sleeve from the first ventilation pipe and its connection to the clean air pipe, allows for cleaning of the clean air pipe and replacement of the scraper ring, further improving the ease of cleaning the inside of the clean air pipe. The improved cleanliness inside the clean air pipe enhances the effectiveness of air purification in the operating room, thereby improving the overall air cleanliness.

[0024] Preferably, a third filter screen is provided at the end of the second ventilation pipe away from the clean air pipe, and a second activated carbon plate is inserted at the end of the second ventilation pipe close to the clean air pipe.

[0025] By adopting the above technical solution, the second activated carbon plate adsorbs odors from the air that has been disinfected by ultraviolet light, and the third filter filters the air that enters the operating room, thereby further improving the cleanliness of the air entering the operating room and thus improving the cleanliness of the operating room environment.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By incorporating scraper rings, scraper blades, and baffles, the air circulating and purifying within the operating room's air purification duct carries floating dust into the duct. After the operating room is finished, the first ventilation duct moves towards the ceiling, causing the scraper rings to clean the inner wall of the air purification duct, thus improving its cleanliness. Therefore, the air purification duct provides better purification when purifying the air in the operating room. The scraper blades clean the scraper rings that have cleaned the inner wall of the air purification duct and store the cleaned floating dust in a dust collection box. When the air purification duct is in use, the baffles isolate the duct from the dust collection box, reducing the possibility of the air carrying dust from the dust collection box during ventilation, thereby improving the air cleanliness within the operating room. 2. By setting a second ring and a third screw, when the first ventilation pipe rises, it drives the third screw to rotate, which in turn drives the second screw to rotate. This allows the scraper ring to clean the inner wall of the clean air pipe when the first ventilation pipe rises, reducing the possibility of air carrying floating dust during purification in the clean air pipe, and thus improving the air cleanliness of the operating room. 3. By setting the first support rod and the second support rod, the sleeve and the first ventilation pipe are supported, which facilitates the cleaning and replacement of the scraper ring and the cleaning of the inside of the clean air pipe, thus improving the convenience of cleaning the clean air pipe. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the purification device for the operating room in the embodiments of this application.

[0028] Figure 2 This is a cross-sectional view of the overall structure of the purification device for the operating room in the embodiments of this application.

[0029] Figure 3 This is a schematic diagram illustrating the structure of the rack in the embodiments of this application.

[0030] Figure 4 This is a schematic diagram illustrating the structure of the first ventilation duct in the embodiments of this application.

[0031] Figure 5 This is a structural schematic diagram used to illustrate the position of the baffle in the embodiments of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. First ventilation pipe; 11. Sleeve; 111. Mounting frame; 112. First activated carbon plate; 113. Drive cylinder; 12. First filter screen; 13. First air pipe; 131. First signal sensor; 14. Second air pipe; 141. Second signal sensor; 15. Second filter screen; 16. Second collar; 17. Mounting ring; 171. Drive gear; 18. Drive motor; 181. Driven gear; 2. Clean air pipe; 21. Scraper ring; 211. 21. Rack; 22. Second screw; 23. Ultraviolet lamp; 24. Connecting rod; 25. Support frame; 3. Second ventilation pipe; 31. Third filter; 32. Second activated carbon plate; 41. First bevel gear; 42. Second bevel gear; 43. Third screw; 5. Ash storage box; 51. Baffle; 511. First screw; 5111. Gear; 512. First collar; 52. Scraper; 6. First support rod; 61. Second support rod; 7. Atomizer; 71. Water storage tank. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0034] This application discloses a purification device for operating rooms. (Refer to...) Figure 1 and Figure 2A purification device for operating rooms includes a first ventilation pipe 1, a purified air pipe 2, and a second ventilation pipe 3, which are sequentially connected. The purified air pipe 2 is located in the ceiling of the operating room. The first ventilation pipe 1 and the second ventilation pipe 3 are located at opposite ends of the purified air pipe 2 along its length and are connected to the operating room. The first ventilation pipe 1 is located above the operating table, and the second ventilation pipe 3 is located at the edge of the operating room. The purified air pipe 2 is used to purify the air entering from the first ventilation pipe 1 and to discharge the purified air into the operating room through the second ventilation pipe 3. A scraper ring 21 is provided on the inner wall of the purified air pipe 2 for cleaning the inner wall of the purified air pipe 2. The scraper ring 21 moves along the axial direction of the purified air pipe 2. A dust collection box 5 is provided at one end of the purified air pipe 2 near the second ventilation pipe 3. A baffle 51 is provided at the connection between the dust collection box 5 and the purified air pipe 2 to isolate the dust collection box 5 from the purified air pipe 2. A scraper 52 is installed inside the clean air duct 2, located at the ash storage box 5. The scraper 52 is used to clean the scraper ring 21, and is slidably connected to the baffle 51. The first ventilation duct 1 is height-adjustable. When the operating room is finished, the first ventilation duct 1 rises, driving the scraper ring 21 to move along the axial direction of the clean air duct 2 from one end near the first ventilation duct 1 towards the ash storage box 5, cleaning the inner wall of the clean air duct 2. When the scraper ring 21 moves to the end near the ash storage box 5, it drives the scraper 52 and the baffle 51 to descend, cleaning the scraper ring 21 during the descent and storing the cleaned floating dust in the ash storage box 5. When the operating room needs to be used, the scraper ring 21 returns to the position near the first ventilation duct 1, and the baffle 51 blocks the clean air duct 2 from the ash storage box 5, reducing the possibility of clean air carrying dust from the ash storage box 5 back into the operating room during ventilation, thus improving the air cleanliness of the operating room.

[0035] Reference Figure 2 The first ventilation duct 1 is fitted with a sleeve 11. A mounting frame 111 is fixedly mounted on the end of the sleeve 11 facing the ceiling of the operating room. The sleeve 11 and the mounting frame 111 are integrally formed. A fastening bolt is provided on the mounting frame 111, which is threaded into the ceiling of the operating room, thus fixing the mounting frame 111 to the ceiling. A first activated carbon plate 112 is inserted inside the mounting frame 111, filtering and purifying the air entering the clean air duct 2. When replacing the first activated carbon plate 112, it is simply removed from the mounting frame 111 and a clean first activated carbon plate 112 is inserted.

[0036] Reference Figure 2 and Figure 3A first support rod 6 is installed on the ceiling of the operating room, and the first support rod 6 is axially arranged along the first ventilation pipe 1. A second support rod 61 is hinged to the first support rod 6, and the end of the second support rod 6 away from the first support rod 6 is fixedly connected to the outer wall of the sleeve 11. By unscrewing the fastening bolts from the mounting frame 111, the first support rod 6 and the second support rod 61 support the sleeve 11 and the first ventilation pipe 1. Rotating the sleeve 11 away from the point of connection with the clean air pipe 2 exposes the connection between the clean air pipe 2 and the first ventilation pipe 1, making it easier to clean and replace the scraper ring 21 and improving the convenience of cleaning.

[0037] Reference Figure 3 and Figure 4 The first ventilation pipe 1 and the sleeve 11 are vertically adjustable. A drive cylinder 113 is installed on the inner wall of the sleeve 11, located at the end of the sleeve 11 near the mounting frame 111. The piston rod of the drive cylinder 113 is fixedly connected to the first ventilation pipe 1. When the drive cylinder 113 is activated, it drives the first ventilation pipe 1 to move vertically along the axial direction of the sleeve 11. When the operating room is put into use, the first ventilation pipe 1 descends to approach the operating table; after the operating room is finished, the first ventilation pipe 1 rises into the sleeve 11 and stops working.

[0038] Reference Figure 3 and Figure 4 A connecting rod 24 is fixedly installed inside the air purification pipe 2. The connecting rod 24 is located at the end of the air purification pipe 2 near the first ventilation pipe 1 and is arranged along the axial direction of the first ventilation pipe 1. A second screw 22 is installed inside the air purification pipe 2, and the second screw 22 is arranged along the axial direction of the air purification pipe 2. The second screw 22 passes through the connecting rod 24 and is rotatably connected to the connecting rod 24. A scraper ring 21 is threadedly connected to the second screw 22. Several ultraviolet lamps 23 are installed on the inner wall of the air purification pipe 2. The ultraviolet lamps 23 are used to purify the air flowing through the air purification pipe 2. The scraper ring 21 has a clearance groove to avoid the ultraviolet lamps 23. The ultraviolet lamps 23 guide the scraper ring 21 so that the scraper ring 21 can only move along the axial direction of the second screw 22 and will not rotate with the second screw 22. When the first ventilation pipe 1 is raised or lowered, it drives the second screw 22 to rotate.

[0039] Reference Figure 4 and Figure 5A second collar 16 is fixedly installed on the inner wall of the first ventilation pipe 1, located at the end of the first ventilation pipe 1 near the clean air pipe 2. A third screw 43 is installed inside the first ventilation pipe 1, arranged axially along the first ventilation pipe 1 and threadedly connected to the second collar 16. The third screw 43 is coaxially arranged with the connecting rod 24, and a second bevel gear 42 is fixedly installed at the end of the third screw 43 near the connecting rod 24. A first bevel gear 41 is fixedly installed on the side of the second screw 22 near the first ventilation pipe 1, and the second bevel gear 42 meshes with the first bevel gear 41. A support frame 25 is fixedly installed inside the clean air pipe 2, which supports the second screw 22 and the third screw 43. The second screw 22 passes through the support frame 25 and is rotatably connected to the support frame 25, with the connection point located on the side of the scraper ring 21 facing the connecting rod 24. The third screw 43 is engaged in the support frame 25 and is rotatably connected to the support frame 25. When the sleeve 11 is moved, the third screw 43 is disengaged from the support frame 25. The support frame 25 is used to restrict the third screw 43 to only rotate and not to move along the axial direction of the first ventilation pipe 1.

[0040] Reference Figure 2 and Figure 3 A first screw 511 is installed near the ash storage box 5 in the clean air pipe 2, and the first screw 511 is arranged perpendicular to the axial direction of the clean air pipe 2. A first collar 512 is installed on the baffle 51, and the first collar 512 is threadedly connected to the first screw 511. A gear 5111 is fixedly installed on the first screw 511, and a rack 211 that drives the gear to rotate is fixedly installed on the scraper ring 21. When the scraper ring 21 moves close to the ash storage box 5, the rack 211 meshes with the gear 5111, the scraper ring 21 drives the rack 211 to move, the rack 211 drives the gear to drive the first screw 511 to rotate, and the first collar 512 drives the baffle 51 to descend into the ash storage box 5. During the descent of the baffle 51, the scraper 52 descends and cleans the scraper ring 21, and the floating dust on the scraper ring 21 enters the ash storage box 5. The scraper ring 21 is equipped with a magnetic ring that attracts the scraper 52. When the scraper 52 moves to the ash storage box 5, the magnetic ring attracts the scraper 52.

[0041] Reference Figure 3 and Figure 5When the operating room is put into use, the scraper ring 21 is located on the side close to the first ventilation pipe 1. After the operating room is used, the drive cylinder 113 is started and drives the first ventilation pipe 1 to rise. When the first ventilation pipe 1 rises, the second ring 16 drives the third screw 43 to rotate. The second bevel gear 42 follows the third screw 43 to rotate and drives the first bevel gear 41 to rotate. The rotation of the first bevel gear 41 drives the second screw 22 to rotate. The rotation of the second screw 22 drives the scraper ring 21 to move toward the ash storage box 5. The scraper ring 21 cleans the inner wall of the clean air pipe 2. When the scraper ring 21 moves close to the ash storage box 5, the magnetic ring attracts the scraper 52 to contact the scraper ring 21. At this time, the rack 211 and the gear 5111 mesh. As the scraper 52 continues to move towards the ash storage box 5, the scraper ring 21 pushes the scraper 52 towards the ash storage box 5. The first screw 511 rotates, causing the baffle 51 to descend. The baffle 51 drives the scraper 52 to move towards the lower side of the scraper ring 21 to clean the scraper ring 21. At this time, the floating dust on the scraper ring 21 enters the ash storage box 5, and the scraper 52 blocks the ash storage box 5 from the clean air pipe 2.

[0042] Reference Figure 3 and Figure 5 When the operating room needs to be put back into use, the first ventilation duct 1 descends and drives the third screw 43 to rotate in the opposite direction. The second screw 22 also rotates in the opposite direction, causing the scraper ring 21 to return to its original position towards the first ventilation duct 1. The rack 211 drives the gear 5111 to rotate, and the baffle 51 drives the scraper 52 to rise. The magnetic ring attracts the scraper 52, causing it to move towards the first ventilation duct 1 along with the scraper ring 21. When the gear 5111 disengages from the rack 211, the scraper 52 disengages from the scraper ring 21. The baffle 51 isolates the ash storage box 5 from the clean air duct 2, reducing the amount of dust from the ash storage box 5 carried into the operating room by the purified air during ventilation, thus preventing pollution of the operating room environment. The baffle 51 is provided with a guide surface, which guides the floating dust cleaned off the scraper ring 21 by the scraper 52, accelerating the rate at which the floating dust falls into the ash storage box 5 and reducing the possibility of floating dust accumulating on the baffle 51.

[0043] Reference Figure 2 Both the first ventilation duct 1 and the second ventilation duct 3 are equipped with an atomizer 7 and a water tank 71. Each water tank 71 has a first water pipe connected to the atomizer 7. The first water pipe draws liquid from the water tank 71 into the atomizer 7 for atomization. The atomizer 7 atomizes the liquid and sprays it out as water vapor. The water vapor adsorbs dust and other particles in the air or regulates the humidity in the operating room. A second water pipe is also installed on the water tank 71, extending to the outside of the first ventilation duct 1 and the second ventilation duct 3, for replenishing the liquid in the water tank 71.

[0044] Reference Figure 4A water tank 71 is located at the bottom of the first ventilation duct 1. A mounting ring 17 is rotatably connected to the first ventilation duct 1. A drive motor 18 is mounted on the water tank 71. A drive gear 171 is fixedly mounted on the output shaft of the drive motor 18. A driven gear 181 meshes with the drive gear 171 on the inner wall of the mounting ring 17. When the drive motor 18 starts, the drive gear 171 drives the driven gear 181 to rotate, thereby rotating the mounting ring 17. A first air pipe 13 and a second air pipe 14 are fixedly mounted on the mounting ring 17. Both the first air pipe 13 and the second air pipe 14 are connected to the first ventilation duct 1, and the ends of the first air pipe 13 and the second air pipe 14 furthest from the first ventilation duct 1 are connected to the operating room. The ends of the first air pipe 13 and the second air pipe 14 furthest from the first ventilation duct 1 are bent away from the ceiling of the operating room. The first air pipe 13 and the second air pipe 14 are equipped with tubular expansion joints to achieve a retractable design suitable for different usage needs. The ends of the first air pipe 13 and the second air pipe 14 away from the first ventilation pipe 1 are set with wide openings, and each wide opening is equipped with a second filter screen 15 to filter dust and other particles in the air.

[0045] Reference Figure 2 Both the first ventilation duct 1 and the second ventilation duct 3 are equipped with fans to draw air from the operating room. A first signal sensor 131 is installed on the first duct 13, and a second signal sensor 141 is installed on the second duct 14. A first signal detector is installed on the ceiling of the operating room. When the first duct 13 is below the first signal detector, the detector detects the signal from the first signal sensor 131. At this time, the fan near the first ventilation duct 1 turns on, and the fan near the second ventilation duct 3 turns off. The fan near the first ventilation duct 1 then draws air from the operating room. The gas enters the first ventilation duct 1 from the first duct 13 and the second duct 14. A second filter 15 performs initial filtration of the gas. A first filter 12 is installed at the end of the first sleeve 11 near the clean air pipe 2, and the first filter 12 performs secondary filtration of floating dust in the gas. The atomizer 7 in the first ventilation duct 1 atomizes the water in the water tank 71. The water molecules combine with airborne dust and other particles, rising continuously to the first activated carbon plate 112, where they adsorb the water molecules and dust. The ultraviolet lamp 23 disinfects and sterilizes the gas in the air purification duct 2, and the purified gas enters the operating room through the second ventilation duct 3.

[0046] Reference Figure 2The atomizer 7 in the second ventilation duct 3 atomizes the purified water in the water tank 71. The water molecules combine with the gas to increase the humidity of the air entering the operating room, thus regulating the humidity within the operating room. A second activated carbon plate 32 is inserted into the end of the second sleeve 11 closest to the ceiling of the operating room. The second activated carbon plate 32 adsorbs the odor of the gas disinfected by the ultraviolet lamp tube 23, improving the comfort of the operating room environment. A third filter 31 is fixedly installed at the end of the second sleeve 11 away from the ceiling of the operating room. The third filter 31 is connected to the second ventilation duct 3 by screws. The third filter 31 further filters the air to be introduced into the operating room. Both the first activated carbon plate 112 and the second activated carbon plate 32 are equipped with handles. When replacing the first activated carbon plate 112 and the second activated carbon plate 32, the handles are grasped to remove them, improving the convenience of replacement.

[0047] Reference Figure 2 and Figure 4 The drive motor 18 is started, and the mounting ring 17 rotates, causing the second air duct 14 to move below the first signal detector. The first signal detector detects the signal from the second signal sensor 141. At this time, the fan near the second ventilation duct 3 turns on, and the fan near the first ventilation duct 1 turns off. The fan near the second ventilation duct 3 then draws air from the operating room. The gas enters the air purification duct 2 from the second ventilation duct 3, where the third filter 31 performs preliminary filtration. The atomizer 7 in the second ventilation duct 3 atomizes the purified water in the water tank 71. Water molecules combine with the gas, and the second activated carbon plate 32 adsorbs the water molecules, simultaneously adsorbing any dust particles attached to them. The ultraviolet lamp 23 in the air purification duct 2 purifies and sterilizes the gas. The gas then enters the first ventilation duct 1, where the first activated carbon plate 112 adsorbs any odors from the gas sterilized by the ultraviolet lamp 23. The nebulizer 7, located in the first ventilation duct 1, atomizes purified water. The water molecules combine with the gas and are discharged into the operating room through the first trachea 13 and the second trachea 14, increasing the humidity around the operating table. This is suitable for patients with asthma who require high humidity levels, reducing discomfort caused by dry air and thus improving surgical procedures. The first trachea 13 and the second trachea 14 should not be rotated during surgery. Rotation to change the gas flow requires cleaning the equipment to maintain a clean operating room environment. This system is suitable for special patients, such as asthma patients, who require increased humidity in the operating room, such as those undergoing bone setting for asthma patients. In these cases, it is not used as the primary purification equipment.

[0048] Reference Figure 2 and Figure 4A second signal detector is also installed on the ceiling of the operating room. The drive motor 18 drives the mounting ring 17 to rotate. When the second air pipe 14 rotates to below the second signal detector, the second signal detector detects the signal of the second signal sensor 141, and the equipment enters the off state. At this time, the first ventilation pipe 1 rises, and the scraper ring 21 cleans the inner wall of the clean air pipe 2. When the operating room needs to be put into use again, the drive motor 18 drives the mounting ring 17 to rotate. After the first signal detector detects either the first signal sensor 131 or the second signal sensor 141, the first ventilation pipe 1 descends. At this time, the scraper ring 21 moves towards the first ventilation pipe 1, and the baffle 51 blocks the clean air pipe 2 from the ash storage box 5.

[0049] The implementation principle of a purification device for an operating room according to an embodiment of this application is as follows: When the operating room is put into use, the drive motor 18 starts and adjusts the positions of the first air pipe 13 and the second air pipe 14 so that the first signal detector can detect the signal of either the first signal sensor 131 or the second signal sensor 141. After receiving the signal, the first signal detector controls the drive cylinder 113 to open. The drive cylinder 113 drives the first ventilation pipe 1 to descend. The second collar 16 drives the third screw 43 to rotate. The second bevel gear 42 follows the rotation of the third screw 43 and drives the first bevel gear 41 to rotate. Then the second screw 22 rotates and drives the scraper ring 21 to move toward the first ventilation pipe 1. The rack 211 drives the gear 5111 to rotate, which in turn drives the first screw 511 to rotate. The first collar 512 drives the baffle 51 to rise. The baffle 51 drives the scraper 52 to rise. When the rack 211 and the gear 5111 are disengaged, the baffle 51 is located at the connection between the clean air pipe 2 and the ash storage box 5, blocking the clean air pipe 2 and the ash storage box 5. When the operating room is no longer in use, the drive motor 18 starts, and the second air pipe 14 moves to the second signal detector. The second signal detector detects the signal from the second signal sensor 141 and controls the drive cylinder 113 to open. The drive cylinder 113 drives the first ventilation pipe 1 to rise, and the second collar 16 drives the third screw 43 to rotate. The second bevel gear 42 follows the rotation of the third screw 43 and drives the first bevel gear 41 to rotate. Then, the second screw 22 rotates and drives the scraper ring 21 to move towards the second ventilation pipe 3. When the scraper ring 21 moves close to the ash storage box 5, the magnetic ring attracts the scraper 52, causing the scraper 52 to contact the scraper ring 21. The rack 211 meshes with the gear 5111. As the scraper ring 21 continues to move towards the ash storage box 5, the gear 5111 drives the first screw 511 to rotate, and the first collar 512 drives the baffle 51 to descend. As the scraper 52 descends with the baffle 51, it cleans the scraper ring 21, and the floating dust on the scraper ring 21 falls into the ash storage box 5.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A purification device for operating rooms, characterized in that: The system includes a first ventilation pipe (1), a clean air pipe (2), and a second ventilation pipe (3) installed on the ceiling of the operating room. The first ventilation pipe (1) is located above the operating table, and the second ventilation pipe (3) is located at the edge of the operating room. The clean air pipe (2) is used to purify the air introduced from the first ventilation pipe (1) and discharge the purified clean air from the second ventilation pipe (3). A scraper ring (21) for cleaning the inner wall of the clean air pipe (2) is provided inside the clean air pipe (2), and the scraper ring (21) moves along the axial direction of the clean air pipe (2). A dust collection box (5) is provided at one end of the clean air pipe (2) near the second ventilation pipe (3). A baffle (51) is provided at the connection between the dust collection box (5) and the clean air pipe (2). The baffle (51) is used to block the clean air pipe (2) and the dust collection box (5). A scraper (52) for cleaning the scraper ring (21) is provided at the upper end of the baffle (51). The first ventilation pipe (1) is vertically adjustable. When the first ventilation pipe (1) rises toward the ceiling of the operating room, it drives the scraper ring (21) to move toward the ash storage box (5). When the scraper ring (21) approaches the ash storage box (5), it drives the scraper (52) and the baffle (51) to descend, and drives the scraper (52) to clean the scraper ring (21). The first ventilation pipe (1) is fitted with a sleeve (11). The inner wall of the sleeve (11) is provided with a drive cylinder (113) for driving the first ventilation pipe (1) to rise and fall. The driving cylinder (113) is located at one end of the first ventilation pipe (1) near the clean air pipe (2), and the outer wall of the first ventilation pipe (1) is slidably connected to the inner wall of the sleeve (11); a first screw (511) is provided at one end of the clean air pipe (2) near the ash storage box (5), the first screw (511) is arranged along the axial direction of the second ventilation pipe (3), and a first collar (512) is provided on the baffle (51), the first collar (512) is threadedly connected to the first screw (511); A gear (5111) is sleeved on the first screw (511), and the first screw (511) is fixedly connected to the gear (5111). A rack (211) is provided on the scraper ring (21) to drive the gear (5111) to rotate. A magnetic ring is provided inside the scraper ring (21) to attract the scraper ring (21) to move. The scraper (52) is slidably connected to the baffle (51).A second screw (22) is provided inside the air purification pipe (2), and the second screw (22) is arranged along the axial direction of the air purification pipe (2). The scraper ring (21) is threadedly connected to the second screw (22). A plurality of ultraviolet lamps (23) are provided on the inner wall of the air purification pipe (2). The scraper ring (21) is provided with a clearance groove for avoiding the ultraviolet lamps (23). The scraper ring (21) is guided by the ultraviolet lamps (23) and cleans the ultraviolet lamps (23). When the first ventilation pipe (1) is raised and lowered, it drives the second screw (22) to rotate. A first bevel gear (41) is fixedly provided on the second screw (22). The first bevel gear (41) is located at the end of the second screw (22) close to the first ventilation pipe (1). The inner wall of the first ventilation pipe (1) is provided with a second collar (16), which is located at one end of the first ventilation pipe (1) near the clean air pipe (2). A third screw (43) is provided inside the first ventilation pipe (1), which is threadedly connected to the second collar (16). The third screw (43) is arranged along the axial direction of the first ventilation pipe (1). A second bevel gear (42) is fixedly provided on the third screw (43), which is located at one end of the third screw (43) near the clean air pipe (2). The second bevel gear (42) meshes with the first bevel gear (41). A support frame (25) for supporting the second screw (22) and the third screw (43) is provided inside the clean air pipe (2).

2. The purification device for operating rooms according to claim 1, characterized in that: A first filter (12) is provided at one end of the first ventilation pipe (1) near the clean air pipe (2). A first trachea (13) and a second trachea (14) are provided at one end of the first ventilation pipe (1) near the operating table. The first trachea (13) and the second trachea (14) are connected to the operating room. A second filter (15) is provided at the end of the first trachea (13) and the second trachea (14) away from the first ventilation pipe (1). The first trachea (13) and the second trachea (14) are retractable toward the operating table.

3. The purification device for operating rooms according to claim 1, characterized in that: Both the first ventilation pipe (1) and the second ventilation pipe (3) are equipped with an atomizer (7) and a water tank (71), and the water tank (71) is connected to the atomizer (7).

4. The purification device for operating rooms according to claim 2, characterized in that: The first ventilation pipe (1) is provided with an installation ring (17), which is rotatably connected to the first ventilation pipe (1). The first air pipe (13) and the second air pipe (14) are both fixedly connected to the installation ring (17).

5. The purification device for operating rooms according to claim 2, characterized in that: The sleeve (11) is provided with an installation frame (111) at one end facing the top wall of the operating room. The side of the installation frame (111) away from the sleeve (11) is connected to the top wall of the operating room. The top wall of the operating room is provided with a first support rod (6). The outer wall of the sleeve (11) is provided with a second support rod (61) hinged to the first support rod (6). When the installation frame (111) is disconnected from the top wall of the operating room, the first support rod (6) and the second support rod (61) are used to support the sleeve (11). A first activated carbon plate (112) is inserted into the installation frame (111). The first activated carbon plate (112) is detachably disposed from the installation frame (111).

6. The purification device for operating rooms according to claim 1, characterized in that: A third filter (31) is provided at the end of the second ventilation pipe (3) away from the clean air pipe (2), and a second activated carbon plate (32) is inserted at the end of the second ventilation pipe (3) close to the clean air pipe (2).

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