Air purification equipment for operating room

Abstract

The invention relates to the technical field of air purification treatment, in particular to air purification equipment for an operating room, which comprises a treatment box, an air inlet communicated with the outer wall of the treatment box, and a treatment unit for performing stage treatment on air entering the treatment box according to the speed of air entering the treatment box, the treatment box is composed of a fast air channel, a slow air channel and a partition plate. The machine body is divided into a fast air channel and a slow air channel by the partition plate. According to the air purification equipment for the operating room, through the arrangement of the fast air channel and the slow air channel, on one hand, the problem that a single filtering module is prone to rapid loss under high-load operation is solved; by using the double channels and the double purification modules, the filtering modules matched with the purification media can be selected according to the gas flowing speed of the channels according to actual requirements, so that the purification efficiency is remarkably improved, and the situation that germs are not filtered thoroughly can be effectively avoided even if the risk of high-intensity infection is faced.

Description

Technical Field

[0001] The invention relates to the technical field of air purification processing, and in particular to an air purification device for an operating room. Background Art

[0002] Air purification equipment, also known as air cleaning equipment or air freshener, refers to products that can filter out or kill air pollutants and effectively improve air cleanliness.

[0003] In the medical environment, the operating room is a key place for performing high-precision operations, and its air quality is directly related to the success rate of the operation and the health of the patient. In order to ensure the cleanliness of the air in the operating room, reduce the risk of surgical infection, and protect medical staff from the hazards of air pollution, air purification equipment has been widely used in operating rooms.

[0004] In the pre-operative stage, in order to quickly meet the cleanliness requirements, the air supply of the suction device will be increased to ensure that the operating room reaches the required cleanliness in a short time; during the operation, in order to maintain the stable air quality in the operating room, the power of the purification device will be maintained at a relatively stable level; at the same time, the noise generated by the high-speed rotation of the fan will be reduced to affect the efficiency of the operation. After the operation, in order to quickly remove dirty air and viruses and return to standby mode, the air supply of the suction device may be increased again to reduce the interval time between the next operation after the operation; therefore, different wind speeds will be adjusted in the operating room according to different scenarios to flow through the air purification equipment.

[0005] During tumor resection surgery, especially when the tumor is malignant and highly contagious, such as certain types of sarcoma or lymphoma, smoke containing viruses may be produced during the operation; active cells (such as tumor cells) and virus particles contained in these smoke may be inhaled by the air purifier and multiply inside it.

[0006] Patent application number CN202410105831.9 discloses an air purification circulation device for a clean operating room, including a mounting frame, an air intake duct and an air intake frame. By arranging an air outlet duct on one side of the connecting frame and an air intake duct on the other side of the connecting frame, when the air pressure inside the operating room is relatively high, the air inside the operating room is discharged through the air outlet duct to reduce the air pressure inside the operating room. When the air pressure inside the operating room is relatively low, fresh air is sent into the operating room through the air intake duct to increase the air pressure inside the operating room. When the air pressure inside the operating room is in a balanced state, the exhaust of the air outlet duct and the air supply operation of the air intake duct are stopped, and the purification component inside the circulation frame is used to purify and circulate the air inside the operating room. While purifying the pathogens in the air inside the operating room, the air pressure inside the operating room is maintained in a stable state, providing a comfortable air environment for medical staff and patients.

[0007] However, this patent only provides one purification component, and the gases in the operating room often carry highly contagious viruses. When different wind speeds are required to flow through the purification component, it is difficult to ensure that the purification component using the same purification medium at high or low wind speeds can purify the bacteria in the air, leading to virus breeding and creating the risk of virus transmission during subsequent equipment maintenance.

[0008] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the invention

[0009] The purpose of the present invention is to provide an air purification device for an operating room which can effectively solve the above-mentioned technical problems.

[0010] In order to achieve the purpose of the present invention, the following technical scheme is adopted: An air purification device for an operating room, comprising: a treatment box, an air inlet connected to an outer wall of the treatment box, and a treatment unit for performing graded treatment on air entering the treatment box according to the speed of the gas entering the treatment box; The processing box is composed of a fast wind channel, a slow wind channel, and a partition; the partition separates the machine body into a fast wind channel and a slow wind channel; The processing unit includes: a flow guiding mechanism for guiding the gas entering the processing box according to the gas flow speed; a purification module 1 and a purification module 2 respectively installed in the fast wind channel and the slow wind channel; and a disinfection mechanism for performing secondary disinfection on the channel after purification. The guide mechanism includes: a windshield cloth for blocking the fast wind channel and the slow wind channel, a wind wheel rotatably installed at the air inlet of the processing box, a motor for driving the wind wheel to rotate, a speed sensor for detecting the rotation speed of the wind wheel, and a winding component for driving the windshield cloth to move; The reeling assembly comprises: a second motor, a cloth reeling rod coaxially and fixedly connected to the second motor, the cloth reeling rod being fixedly connected to one end of the windshield cloth; a flow opening is provided on the windshield cloth; According to the rotation speed of the wind wheel, the motor drives the cloth winding rod to rotate different numbers of circles, so that the flow port moves to the air inlet of the fast wind channel or the slow wind channel.

[0011] Furthermore, the flow guiding mechanism further comprises: a delivery component for delivering purified gas into the channel; The conveying assembly includes: a storage box fixedly installed in the processing box, an air pressure chamber connected to the storage box, a negative pressure fan rotatably installed at the connection between the air pressure chamber and the storage box, a piston plate slidably installed in the air pressure chamber, and a reset member that drives the piston plate to reset, and the negative pressure fan is connected to the wind wheel through a transmission member.

[0012] Furthermore, the air pressure chamber is provided with a first pressure relief hole and a second pressure relief hole; the first pressure relief hole is located at one end of the slow wind channel, and the second pressure relief hole is located at one end of the fast wind channel.

[0013] Furthermore, the pressure relief hole is also provided with a blocking component for blocking the pressure relief hole; The blocking component includes: a sealing plug, an inclined block slidably mounted on the air pressure chamber, a reset spring for driving the sealing plug to reset, and a driving component that pushes the sealing plug to block the pressure relief hole as the wind wheel rotates faster. The inclined surface of the inclined block abuts against the sealing plug.

[0014] Furthermore, the driving assembly includes: a fixed rod coaxially fixedly connected to the wind wheel, a sliding member slidably mounted on the fixed rod, the sliding member is connected to the fixed rod via an elastic member, a counterweight block is fixedly mounted on the elastic member, a bearing is also sleeved on the sliding member, the outer ring of the bearing is fixedly connected to a connecting rod, and the connecting rod is fixedly connected to the inclined block.

[0015] Furthermore, the partition is tiltedly arranged in the processing box, the inner diameter of the fast wind channel gradually decreases along the gas flow direction, and the inner diameter of the slow wind channel gradually increases along the gas flow direction; one side of the fast wind channel is connected to exhaust port 1, and one side of the slow wind channel is connected to exhaust port 2.

[0016] Furthermore, the disinfection mechanism includes: sterilization components respectively installed in the fast wind channel and the slow wind channel, and a regulating component for regulating the operation of the sterilization components in different pipes according to the change of wind speed; The sterilization component includes: an electric push rod fixedly installed in the processing box, a sterilization lamp fixedly connected to the piston rod of the electric push rod; a sealing plate rotatably installed at the exhaust port; the piston rod of the electric push rod abuts against the sealing plate, and the sealing plate is elastically connected to the inner wall of the processing box through a second reset spring.

[0017] Further, the regulating assembly includes: a double-sided gear fixedly mounted on the sliding member, a driven gear 1 and a driven gear 2 rotatably mounted on the inner wall of the processing box, and a collector ring 1 and a collector ring 2 rotatably mounted on the inner wall of the processing box; the collector ring 1 and the collector ring 2 are provided with teeth, the driven gear 1 is meshed with the collector ring 1, and the driven gear 2 is meshed with the collector ring 2; The first collector ring is electrically connected to the sterilization lamp in the fast wind channel and the electromagnetic valve of the electric push rod; the second collector ring is electrically connected to the sterilization lamp in the slow wind channel and the electromagnetic valve of the electric push rod.

[0018] Furthermore, a protective component is provided on the outer side of the sterilization lamp. The protection assembly consists of a protection bin fixedly mounted on the processing box, a bacteria-blocking plate hinged at the outlet of the protection bin, and a reset spring for driving the bacteria-blocking plate to reset; the sterilization lamp is slidably mounted in the protection bin.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides an air purification device for an operating room. By setting a fast wind channel and a slow wind channel, on the one hand, the problem of rapid loss of a single filter module under high-load operation is solved. On the other hand, the use of dual channels and dual purification modules can select a filter module that is suitable for the purification medium according to actual needs according to the gas flow rate of the channel, thereby significantly improving the purification efficiency and ensuring that even when facing a high-intensity infection risk, incomplete bacteria filtration can be effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0021] Figure 1 This is a schematic structural diagram of an air purification device for an operating room according to the present invention; Figure 2 This is an internal cross-sectional view of an air purification device for an operating room of the present invention; Figure 3 It is an internal cross-sectional view from another angle of an air purification device for an operating room of the present invention; Figure 4 It is a structural schematic diagram of the flow guiding mechanism in the present invention; Figure 5 is a perspective view of the flow guiding mechanism in the present invention; Figure 6 for Figure 5 A partial enlarged view of part B; Figure 7 for Figure 5 A partial enlarged view of part A; Figure 8 A bottom view of the flow guiding mechanism of the present invention; Fig. 9 It is a structural schematic diagram of the plugging component in the present invention; Fig.10 It is a schematic diagram of the structure of the control component in the present invention; Fig.11 for Fig.10 A partial enlarged view of part C in the middle; Fig.12 It is a schematic diagram of the structure of the sterilization component in the present invention; Fig.13 Another perspective view of the sterilization component of the present invention; Fig.14 for Fig.13 A partial enlarged view of part D in the middle; Fig.15 The motion state of the windshield cloth in the present invention at a slow wind speed; Fig.16 The motion state of the windshield cloth in the present invention at high wind speed; Fig.17 It is a schematic diagram of the structure of the winding assembly in the present invention.

[0022] In the figure: 1, treatment box; 2, air inlet; 11, fast wind channel; 12, slow wind channel; 13, partition; 31, flow guide mechanism; 32, purification module 1; 33, purification module 2; 311, wind shield cloth; 315, cloth rolling rod; 316, motor 2; 3121, wind wheel; 3122, air pressure chamber; 3123, negative pressure fan; 3124, piston plate; 3125, reset member; 3127, storage box; 3128, transmission member; 3111, flow port; 3112, winding assembly; 31221, pressure relief hole 1; 31222, pressure relief hole 2; 312231 , sealing plug; 312232, inclined block; 312233, reset spring 1; 4, driving assembly; 41, fixing rod; 42, sliding member; 43, elastic member; 44, counterweight; 45, connecting rod; 111, exhaust port 1; 121, exhaust port 2; 4311, electric push rod; 4312, sterilization lamp; 4313, sealing plate; 4314, reset spring 2; 4321, double-sided gear; 4322, driven gear 1; 4323, driven gear 2; 4324, collector ring 1; 4325, collector ring 2; 43121, bacteria-blocking plate; 43122, protective compartment. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments.

[0024] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] like Figures 1 to 17 As shown, an air purification device for an operating room of the present invention comprises: a treatment box 1, an air inlet 2 connected to the outer wall of the treatment box 1, and a treatment unit for performing graded treatment on the air entering the treatment box 1 according to the gas velocity entering the treatment box 1; The processing box 1 is composed of a fast wind channel 11, a slow wind channel 12, and a partition 13; the partition 13 divides the body into the fast wind channel 11 and the slow wind channel 12; one side of the fast wind channel 11 is connected to an exhaust port 111, and one side of the slow wind channel 12 is connected to an exhaust port 2 121; By arranging a fast wind channel 11 and a slow wind channel 12 in the processing box 1, when it is necessary to quickly replace and purify the air in the operating room, the wind wheel 3121 is driven by the motor 1 to transport gas to the processing box 1, and the gas transported to the processing box 1 will be guided to the fast wind channel 11 by the guide mechanism 31, and filtered by the filter module that filters for excessive wind speed, and when it is necessary to slowly replace and purify the air in the operating room, the guide mechanism 31 will guide the gas to the slow wind channel 12, and filtered by the filter module in the slow wind channel 12; through the above mechanism, on the one hand, the problem of rapid loss of a single filter module under high load operation is reduced, and on the other hand, by using dual channels and dual purification modules, the channel with the highest purification efficiency corresponding to the wind speed can be selected according to the wind speed entering the processing box, thereby significantly improving the purification efficiency, ensuring that even when facing a high risk of infection, incomplete filtering of pathogens can be effectively avoided.

[0026] The partition 13 is tiltedly arranged in the processing box 1, the inner diameter of the fast wind channel 11 gradually decreases along the gas flow direction, and the inner diameter of the slow wind channel 12 gradually increases along the gas flow direction; By setting the partition 13 at an angle, when the guide mechanism 31 introduces wind into the fast wind channel 11, it can be seen from the Bernoulli equation that when the gas flows from a larger pipe diameter into a gradually smaller pipe diameter, its flow velocity will increase, so that when the gas flows into the fast wind channel 11, the flow velocity of the gas will increase. In addition, the guide mechanism 31 will only introduce the absorbed wind into the fast wind channel 11 when the wind wheel 3121 works at a high speed, so that the airflow inside the fast wind channel 11 has a high flow rate characteristic, which fully meets the wind speed requirements of the high flow rate filter module. When the gas is guided to the slow wind channel 12, its flow velocity will be reduced accordingly, which just meets the wind speed requirements of the low flow rate filter module; it not only optimizes the work efficiency, but also significantly enhances the overall purification effect of the air purification system.

[0027] A flow guiding mechanism 31 for guiding the gas entering the processing box 1 according to the gas flow rate, a purification module 1 32 and a purification module 2 33 respectively installed in the fast wind channel 11 and the slow wind channel 12; a disinfection mechanism for performing secondary disinfection on the channel after purification; The gas introduced into the processing box 1 is guided by the guide mechanism 31 according to the wind speed. When the wind speed is slow, the guide mechanism 31 will guide the gas into the slow wind channel 12. While the slow airflow is being disinfected, the secondary disinfection mechanism will perform secondary disinfection on the unoperating fast wind channel 11 to prevent virus residues. Conversely, the guide mechanism 31 will guide the fast-flowing air into the fast wind channel 11 for disinfection, while performing secondary disinfection on the unoperating slow wind channel 12.

[0028] The guide mechanism 31 includes: a windshield cloth 311 for blocking the fast wind channel 11 and the slow wind channel 12, a wind wheel 3121 rotatably installed at the air inlet 2 of the processing box 1, a motor 1 for driving the wind wheel 3121 to rotate, a speed sensor for detecting the rotation speed of the wind wheel 3121, and a winding assembly 3112 for driving the windshield cloth 311 to move; The reeling assembly 3112 includes: a second motor 316, a cloth reeling rod 315 coaxially and fixedly connected to the second motor 316, and the cloth reeling rod 315 is fixedly connected to one end of the windshield cloth 311; a flow opening 3111 is provided on the windshield cloth 311; According to the rotation speed of the wind wheel 3121 , the second motor 316 drives the cloth rolling rod 315 to rotate different numbers of circles, so that the flow port 3111 moves to the air inlet 2 of the fast wind channel 11 or the slow wind channel 12 .

[0029] When the gas in the operating room needs to be purified, the motor gear (speed) is manually adjusted according to the needs of the actual usage scenario. For example, half an hour before the operation, in order to quickly meet the cleanliness requirements, the air supply of the wind wheel 3121 will be increased to quickly meet the air quality requirements during the operation; during the operation, in order to maintain the stability of the airflow in the operating room, the power of the purification device will be maintained at a relatively stable level. When motor 1 drives the wind wheel 3121 to rotate, the speed sensor detects the speed of rotation of the wind wheel 3121 in real time. When the rotation speed of the wind wheel 3121 is less than the threshold, the speed sensor transmits signal 1, and the processor controls motor 2 316 to drive the cloth winding rod 315 to rotate to the first number of circles based on signal 1. The circle speed will move the flow port 3111 on the wind shield cloth 311 to one end of the slow wind channel 12, so that the gas sucked from the operating room by the wind wheel 3121 passes into the slow wind channel 12, and the slower flowing gas is purified and disinfected by purification module 2 33; the threshold here is set manually according to experience, such as: less than 500 revolutions per minute (RPM) is a slow wind speed, and the speed sensor transmits signal 1; higher than 500 revolutions per minute (RPM) is a fast wind speed, and the speed sensor transmits signal 2; 0 revolutions per minute (RPM) is a standby state, and the speed sensor transmits signal 3.

[0030] When the rotation speed of the wind wheel 3121 is greater than the threshold, the control motor 2 316 drives the cloth rolling rod 315 to rotate to the second number of circles. This circle speed will move the flow port 3111 on the windshield cloth 311 to one end of the fast wind channel 11, so that the air sucked from the operating room by the wind wheel 3121 passes into the fast wind channel 11, and the purification module 1 32 purifies and disinfects the faster flowing air; Finally, when the wind wheel 3121 stops rotating, the speed sensor transmits signal three, and the processor controls motor two 316 to drive the cloth rolling rod 315 to rotate in the opposite direction according to signal three, so as to drive the windshield cloth 311 to reset, so as to ensure that when the purification device is not in use, the fast wind channel 11 and the slow wind channel 12 are in a closed state when not working, which effectively reduces the risk of bacteria leakage and the possibility of external bacteria invasion, and significantly improves the safety protection performance of the entire device.

[0031] The flow guiding mechanism 31 further includes: a delivery component for delivering purified gas into the channel; The conveying assembly includes: a storage box 3127 fixedly installed in the processing box 1, an air pressure chamber 3122 connected to the storage box 3127, a negative pressure fan 3123 rotatably installed at the connection between the air pressure chamber 3122 and the storage box 3127, a piston plate 3124 slidably installed in the air pressure chamber 3122, and a reset member 3125 for driving the piston plate 3124 to reset, and the negative pressure fan 3123 is connected to the wind wheel 3121 through a transmission member 3128.

[0032] When the wind wheel 3121 rotates, the rotational action is synchronously transmitted to the negative pressure fan 3123 through the transmission mechanism (preferably a belt drive assembly), and rotates synchronously therewith. The rotation of the negative pressure fan 3123 guides the gas with purification function in the storage box 3127 into the air pressure chamber 3122, so that the pressure in the air pressure chamber 3122 gradually increases, causing the piston plate 3124 to slide along the inner wall of the air pressure chamber 3122 under the action of air pressure; until it moves to the pressure relief hole, and the gas in the air pressure chamber 3122 is depressurized by the pressure relief hole, and the gas with purification function after depressurization is passed into the channel that is purifying the gas, thereby realizing accelerated cleaning of the gas in the pipeline.

[0033] It should be added here that the gas that assists in purification can be ozone or negative ions. A negative ion generator is provided in the storage box 3127, which can continuously deliver negative ions into the storage box 3127.

[0034] The air pressure chamber 3122 is provided with a pressure relief hole 1 31221 and a pressure relief hole 2 31222; the pressure relief hole 1 31221 is located at one end of the slow wind channel 12, and the pressure relief hole 2 31222 is located at one end of the fast wind channel 11; the purification medium in the purification module 1 32 is the medium that has the best effect when the wind speed passes through quickly, and the purification medium in the purification module 2 33 is the medium that has the best effect when the wind speed passes through slowly.

[0035] It should be clarified here that when the demand for air purification inside the operating room is relatively small, when the motor drives the wind wheel 3121 to be at a low speed, when the wind wheel 3121 rotates at a low speed, the pressure input by the negative pressure fan 3123 to the air pressure chamber 3122 is correspondingly weakened; when the piston plate 3124 moves to the position of the pressure relief hole 31221 under pressure drive, the pressure in the air pressure chamber 3122 is released through the pressure relief hole 31221, and since the pressure relief hole 31221 is connected to the slow wind channel, the negative ions in the storage box are passed into the slow wind channel through the pressure relief hole 31221, and are disinfected with the air pressure to be cleaned in the slow wind channel, thereby improving the purification efficiency of the single purification module.

[0036] On the contrary, if the operating room needs to quickly exhaust the indoor gas, the motor 1 drives the wind wheel 3121 at a high speed, and the wind wheel 3121 accelerates its rotation. At this time, the pressure relief hole 1 31221 cannot fully release the pressure in the air pressure chamber 3122 in a short time, and the pressure in the chamber rises rapidly. The piston plate 3124 continues to slide along the air pressure chamber 3122 under the push of high pressure until it reaches the position of the pressure relief hole 2 31222, and the secondary pressure is released through the pressure relief hole 2 31222; because the pressure relief hole 1 31221 is connected to the slow wind channel 12, the negative ions in the storage box 3127 are passed into the slow wind channel 12 through the pressure relief hole 1 31221, and are disinfected with the air pressure to be cleaned in the slow wind channel 12, thereby improving the purification efficiency of the single purification module.

[0037] The above structure can realize the function of automatically adjusting the purification mode according to the change of wind speed, thereby improving the efficiency and effect of air purification; when the flow port 3111 on the wind shield cloth 311 is aligned with one end of the fast wind channel 11, the wind shield cloth 311 will also close the slow wind channel 12, providing a good sealing environment for the subsequent secondary disinfection of the slow wind channel 12.

[0038] As a further development of the present application, considering that the gas in the operating room is often mixed with unpleasant gases such as disinfectant, fragrances can also be added to the storage box; when the negative pressure fan 3123 is running, these fragrant gases are filled into the slow wind channel 12 and the fast wind channel 11, and are fully mixed and comprehensively processed with the gas extracted from the operating room, thereby further enhancing the practicality and functional diversity of the device, and providing a fresher and more pleasant air environment for the operating room.

[0039] Considering that when the wind wheel 3121 rotates at a fast speed, although it can drive the negative pressure fan 3123 to rotate at a high speed and fill more gas into the air pressure chamber 3122, the pressure is continuously released by the pressure relief hole 31221. At this time, even if the piston plate 3124 has the force to continue moving along the storage box, the force will be greatly weakened, resulting in the problem of difficulty in pushing the wind shield cloth 311 to move.

[0040] The pressure relief hole 31221 is also provided with a sealing component for sealing the pressure relief hole 31221; the sealing component includes: a sealing plug 312231, an inclined block 312232 slidably installed on the air pressure chamber 3122, a reset spring 312233 for driving the sealing plug 312231 to reset, and a driving component 4 that pushes the sealing plug 312231 to seal the pressure relief hole 31221 as the rotation speed of the wind wheel 3121 increases, and the inclined surface of the inclined block 312232 abuts against the sealing plug 312231. The driving assembly 4 includes: a fixed rod 41 coaxially fixedly connected to the wind wheel 3121, a sliding member 42 slidably mounted on the fixed rod 41, the sliding member 42 is connected to the fixed rod 41 through an elastic member 43, a counterweight block 44 is fixedly mounted on the elastic member 43, a bearing is also sleeved on the sliding member 42, the outer ring of the bearing is fixedly connected to a connecting rod 45, and the connecting rod 45 is fixedly connected to the inclined block 312232.

[0041] When the wind wheel 3121 switches from slow rotation to fast rotation, the wind wheel 3121 will drive the fixed rod 41 to rotate synchronously, and the counterweight block 44 will generate an outward centrifugal force under the high-speed rotation of the fixed rod 41, pulling the elastic part 43 to contract. When the elastic part 43 contracts, it will pull the sliding part 42 to move upward along the fixed rod 41. While the sliding part 42 moves upward, it will simultaneously pull the inclined block 312232 to move upward, and the inclined block 312232 will squeeze the sealing plug 312231, so that the sealing screen is close to the pressure relief hole 31221, and the pressure relief hole 31221 is blocked, so that when the high-speed airflow flows through the processing box 1, the pressure relief hole can automatically reduce the airflow through the sealing effect of the sealing plug 312231, thereby increasing the air pressure value in the air pressure chamber 3122, and the increase in air pressure thereby improves the power efficiency of pushing the piston plate 3124 to move.

[0042] It should be summarized here that the above-mentioned structure can automatically adjust the purification mode according to the gas flow rate in the operating room, significantly improve the air purification efficiency and effect, reduce the load of the single filtration method on the filter module, and at the same time increase the storage box for auxiliary purification gas, which can release ozone, negative ions and other gases into the airflow while guiding the airflow, further improving the purification effect. In order to improve the applicability of the device, it can automatically reduce the airflow passing through the pressure relief hole, increase the air pressure value in the air pressure chamber 3122, thereby enhancing the power efficiency of pushing the piston plate 3124 to move, and ensure that the equipment can still maintain a stable purification effect under high-intensity working conditions.

[0043] When faced with the need to purify highly infectious surgical waste gas, although the air passing through the treatment box 1 has been effectively purified, a large number of pathogenic microorganisms may still remain on the inner wall surface of the treatment box 1. These residual pathogens may not only continue to breed and multiply inside the treatment box 1, but also pose a potential risk of transmission during the subsequent maintenance of the purification equipment, which may pose a threat to maintenance personnel.

[0044] The regulating assembly includes: a double-sided gear 4321 fixedly mounted on the sliding member 42, a driven gear 1 4322 and a driven gear 2 4323 rotatably mounted on the inner wall of the processing box 1, and a collector ring 1 4324 and a collector ring 2 4325 rotatably mounted on the inner wall of the processing box 1; the collector ring 1 4324 and the collector ring 2 4325 are provided with teeth, the driven gear 1 4322 is meshed with the collector ring 1 4324, and the driven gear 2 4323 is meshed with the collector ring 2 4325; When the wind wheel 3121 rotates at a low speed, the lower teeth of the double-sided gear 4321 mesh with the driven gear 2 4323 and synchronously drive the driven gear 1 4322 to rotate, and the driven gear 1 4322 drives the rotor in the collector ring 1 4324 to rotate, so that the collector ring 2 4325 forms a conductive path. When the collector ring 1 4324 is in the path, the sterilization lamp 4312 and the electric push rod 4311 installed inside the fast wind channel 11 obtain power supply, and perform secondary disinfection and sterilization operations on the inner wall of the closed fast wind channel 11; When the wind wheel 3121 accelerates to high-speed rotation, the counterweights 44 move away from each other due to the centrifugal effect, causing the sliding part 42 to rise in a predetermined direction. This rising action simultaneously causes the upper teeth of the double-sided gear 4321 to mesh with the driven gear 4322, thereby driving the driven gear 4322 to rotate; the rotation of the driven gear 4322 drives the rotation of the rotor inside the collector ring 4324, so that the collector ring 4324 forms a conductive path; the sterilization lamp 4312 and the electric push rod 4311 installed inside the slow wind channel 12 are energized, and the inner wall of the closed slow wind channel 12 is disinfected and sterilized for the second time.

[0045] It should be noted here that through the above structure, when the slow wind or fast wind channel 11 is working, the other non-working channel can be sealed and disinfected autonomously, thereby improving the cleaning efficiency inside the pipe, while reducing the steps of regular cleaning and disinfection in the channel, and optimizing the maintenance management of the pipeline system.

[0046] The sterilization mechanism includes: sterilization components installed in the fast wind channel 11 and the slow wind channel 12 respectively, and a regulating component that regulates the operation of the sterilization components in different pipes according to the wind speed; the sterilization component includes: an electric push rod 4311 fixedly installed in the processing box 1, and a sterilization lamp 4312 fixedly connected to the piston rod of the electric push rod 4311; a sealing plate 4313 rotatably installed at the exhaust port; the piston rod of the electric push rod 4311 abuts against the sealing plate 4313, and the sealing plate 4313 is elastically connected to the inner wall of the processing box 1 through a reset spring 2 4314. The collector ring 1 4324 is electrically connected to the sterilization lamp 4312 in the fast wind channel 11 and the electromagnetic valve of the electric push rod 4311; the collector ring 2 4325 is electrically connected to the sterilization lamp 4312 in the slow wind channel 12 and the electromagnetic valve of the electric push rod 4311.

[0047] It needs to be further explained here that the control component, as a part of the control system, is a mechanical control and forms an "AND" gate control with the speed sensor; to elaborate, when the speed sensor senses that the speed of the wind wheel 3121 reaches the threshold, and it takes time for the windshield 311 to move, the mechanical control and the speed sensor must jointly sense that the speed of the wind wheel 3121 reaches the threshold, and the circuit is in a closed state. Of course, the control component can also form an "OR" gate control with the speed sensor.

[0048] In the present application, when the wind wheel 3121 is driven by motor 1 and increases from a slow wind speed to a fast wind speed, the speed sensor can quickly sense the increase in the speed of the wind wheel 3121. If the speed sensor is directly connected to the electric push rod 4311 through the processor, at the moment the speed sensor reaches the threshold, the electric push rod 4311 will engage the sealing plate 4313 at the exhaust port of the channel. At this time, it takes time for the wind shield 311 to move. Therefore, after the electric push rod 4311 engages the sealing plate 4313 at the exhaust port, a situation in which the slow wind channel 12 is temporarily closed and the fast wind channel 11 has not yet been opened is formed, thereby causing a closed chamber state to be temporarily formed inside the processing box 1. During this period, the wind wheel 3121 continues to inject virus-containing gas into the processing box 1, which may cause gas backflow and cause secondary pollution to the air quality in the operating room.

[0049] The present application adopts a mechanical control mechanism to achieve secondary verification. Specifically, when the speed of the wind wheel 3121 increases, the double-sided gear 4321, driven by centrifugal force, gradually approaches the driven gear 4323 and finally engages, thereby driving the driven gear 4323 to rotate. This process constitutes a physical control link; it is worth noting that the meshing time of the double-sided gear 4321 and the driven gear 4323 in the physical control is coordinated with the time when the motor 2 316 drives the windshield cloth 311 to move, thereby effectively avoiding the problem of virus gas reflux caused by the time difference between the closing of the slow wind channel 12 and the opening of the fast wind channel 11.

[0050] When the electric push rod 4311 and the sterilization lamp 4312 are energized, the electric push rod 4311 pushes the sterilization lamp 4312 out of the protective compartment 43122, and at the same time pushes the sealing plate 4313 to flip and seal the exhaust port, so that the non-working channel is in a relatively sealed state. In this sealed state, the sterilization lamp 4312 continuously and stably emits high-intensity ultraviolet radiation to perform comprehensive and in-depth irradiation and sterilization treatment on the inside of the pipeline.

[0051] The outer side of the sterilization lamp 4312 is also provided with a protective assembly, which is composed of a protective chamber 43122 fixedly mounted on the processing box 1, a bacteria-blocking plate 43121 hinged at the outlet of the protective chamber 43122, and a reset spring for driving the bacteria-blocking plate 43121 to reset; the sterilization lamp 4312 is slidably mounted in the protective chamber 43122; After the secondary sterilization is completed, the electric push rod 4311 retracts, and the sterilization lamp 4312 retracts into the protective chamber 43122 synchronously, and the bacteria barrier plate 43121 is reset under the elastic force of the reset spring three. The bacteria barrier plate 43121 fits tightly against the outlet of the protective chamber 43122 to form a relatively sealed cavity. Therefore, when gas containing pathogens is introduced into the pipeline system, the loosening of the sterilization lighting device caused by the dynamic effect of the airflow can be effectively prevented, thereby ensuring the stability and safety of the system.

[0052] Therefore, when the electric push rod 4311 is pushed, the sterilization lamp 4312 is pushed out of the protection chamber 43122 and the sealing plate 4313 is stuck at the exhaust port, thereby protecting the sterilization lamp 4312 while sealing the channel to be sterilized to improve the sterilization efficiency.

[0053] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0054] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. An air purification device for an operating room, characterized in that: include: A processing box, an air inlet connected to an outer wall of the processing box, and a processing unit for performing graded processing on air entering the processing box according to the velocity of the gas entering the processing box; The processing box is composed of a fast wind channel, a slow wind channel, and a partition; the partition separates the machine body into a fast wind channel and a slow wind channel; The processing unit includes: a flow guiding mechanism for guiding the gas entering the processing box according to the gas flow speed; a purification module 1 and a purification module 2 respectively installed in the fast wind channel and the slow wind channel; and a disinfection mechanism for performing secondary disinfection on the channel after purification. The guide mechanism includes: a windshield cloth for blocking the fast wind channel and the slow wind channel, a wind wheel rotatably installed at the air inlet of the processing box, a motor for driving the wind wheel to rotate, a speed sensor for detecting the rotation speed of the wind wheel, and a winding component for driving the windshield cloth to move; The reeling assembly comprises: a second motor, a cloth-reeling rod coaxially and fixedly connected to the second motor, the cloth-reeling rod being fixedly connected to one end of the windshield cloth; and a circulation port is provided on the windshield cloth.

2. An air purification device for an operating room as claimed in claim 1, characterized in that: The flow guiding mechanism further comprises: a delivery assembly for delivering purified gas into the channel; The conveying assembly includes: a storage box fixedly installed in the processing box, an air pressure chamber connected to the storage box, a negative pressure fan rotatably installed at the connection between the air pressure chamber and the storage box, a piston plate slidably installed in the air pressure chamber, and a reset member that drives the piston plate to reset, and the negative pressure fan is connected to the wind wheel through a transmission member.

3. An air purification device for an operating room as claimed in claim 2, characterized in that: The air pressure chamber is provided with a first pressure relief hole and a second pressure relief hole; the first pressure relief hole is located at one end of the slow wind channel, and the second pressure relief hole is located at one end of the fast wind channel.

4. An air purification device for an operating room as claimed in claim 3, characterized in that: The pressure relief hole is also provided with a blocking component for blocking the pressure relief hole; The blocking component includes: a sealing plug, an inclined block slidably mounted on the air pressure chamber, a reset spring for driving the sealing plug to reset, and a driving component that pushes the sealing plug to block the pressure relief hole as the wind wheel rotates faster. The inclined surface of the inclined block abuts against the sealing plug.

5. An air purification device for an operating room as claimed in claim 4, characterized in that: The driving assembly includes: a fixed rod coaxially connected to the wind wheel, a sliding member slidably mounted on the fixed rod, the sliding member is connected to the fixed rod via an elastic member, a counterweight is fixedly mounted on the elastic member, a bearing is also sleeved on the sliding member, the outer ring of the bearing is fixedly connected to a connecting rod, and the connecting rod is fixedly connected to the inclined block.

6. The air purification device for an operating room according to claim 1, characterized in that: The partition is tilted in the processing box, the inner diameter of the fast wind channel gradually decreases from the gas flow direction, and the inner diameter of the slow wind channel gradually increases from the gas flow direction; one side of the fast wind channel is connected to exhaust port 1, and one side of the slow wind channel is connected to exhaust port 2.

7. The air purification device for an operating room according to claim 1, characterized in that: The sterilization mechanism includes: sterilization components respectively installed in the fast wind channel and the slow wind channel, and a regulating component that regulates the operation of the sterilization components in different pipes according to the change of wind speed; The sterilization component includes: an electric push rod fixedly installed in the processing box, a sterilization lamp fixedly connected to the piston rod of the electric push rod; a sealing plate rotatably installed at the exhaust port; the piston rod of the electric push rod abuts against the sealing plate, and the sealing plate is elastically connected to the inner wall of the processing box through a second reset spring.

8. An air purification device for an operating room as claimed in claim 7, characterized in that: The regulating assembly comprises: a double-sided gear, a driven gear 1 and a driven gear 2 rotatably mounted on the inner wall of the processing box, and a collector ring 1 and a collector ring 2 rotatably mounted on the inner wall of the processing box; the collector ring 1 and the collector ring 2 are provided with teeth, the driven gear 1 meshes with the collector ring 1, and the driven gear 2 meshes with the collector ring 2; The first collector ring is electrically connected to the sterilization lamp in the fast wind channel and the electromagnetic valve of the electric push rod; the second collector ring is electrically connected to the sterilization lamp in the slow wind channel and the electromagnetic valve of the electric push rod.

9. An air purification device for an operating room as claimed in claim 8, characterized in that: The outer side of the sterilization lamp is also provided with a protective component. The protection assembly consists of a protection bin fixedly mounted on the processing box, a bacteria-blocking plate hinged at the outlet of the protection bin, and a reset spring for driving the bacteria-blocking plate to reset; the sterilization lamp is slidably mounted in the protection bin.

Images