Waste gas discharging and sterilizing device of medical negative pressure suction system

Abstract

The invention discloses a waste gas discharging and sterilizing device for a medical negative pressure suction system. The waste gas discharging and sterilizing device comprises a supporting shell, a first sterilizing and purifying mechanism and a second sterilizing and purifying mechanism, a main control screen is mounted on the supporting shell; the first disinfection and purification mechanism comprises a first disinfection and purification box, a purification conveying pipe is mounted in the first disinfection and purification box, and an ultraviolet lamp tube is fixed in the purification conveying pipe; the second disinfection and purification mechanism comprises a second disinfection and purification box, a fixed block is fixed on the second disinfection and purification box, the fixed block is in threaded connection with a controlled voltage source, a plurality of rotary supporting shafts are installed in the second disinfection and purification box, and a plurality of corona discharge assemblies are fixed on the rotary supporting shafts. Through the arrangement of corresponding mechanisms, the purification effect on waste gas generated by medical negative pressure suction is improved, bacteria and viruses in the waste gas can be fully purified, and therefore the gas exhausted outdoors does not contain harmful ingredients any more, and bad influences on the surrounding environment are avoided.

Description

Technical Field

[0001] This invention belongs to the field of medical disinfection technology, specifically relating to a medical negative pressure suction system exhaust gas disinfection device. Background Technology

[0002] Medical negative pressure suction systems, also known as medical vacuum systems, are part of medical gas engineering. They are mainly used for the extraction and separation of fluids such as blood, pus, and sputum during medical treatment and are an indispensable part of modern medicine. Due to the nature of the system's operation, the gas contains a large number of pathogens and viruses, posing a very high risk of infection.

[0003] Currently, the exhaust gas generated by negative pressure suction undergoes gas-liquid separation and is then discharged outdoors after passing through a bacterial filter. However, bacterial filters alone are insufficient to completely remove viruses and bacteria. Furthermore, while some exhaust gases generated by negative pressure suction can be sterilized at high temperatures, some bacteria or viruses are highly heat-resistant, rendering even high-temperature sterilization ineffective. This results in the discharged gas still containing significant amounts of harmful components, posing a considerable risk to the surrounding environment.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a medical negative pressure suction system exhaust gas disinfection device, which can solve the problem that the exhaust gas generated by medical negative pressure suction in the prior art cannot be completely purified.

[0006] To achieve the above objectives, a specific embodiment of the present invention provides the following technical solution:

[0007] A medical negative pressure suction system exhaust gas disinfection device includes: a supporting shell, a first disinfection and purification mechanism, and a second disinfection and purification mechanism;

[0008] The main control screen is mounted on the supporting shell;

[0009] The first disinfection and purification mechanism is installed inside the supporting shell. The first disinfection and purification mechanism includes a first disinfection and purification box. A purification delivery pipe is installed inside the first disinfection and purification box. An ultraviolet lamp is fixed inside the purification delivery pipe. An air inlet pipe is fixedly connected to one end of the purification delivery pipe. A detection chamber is installed on the air inlet pipe.

[0010] The second disinfection and purification mechanism is installed on one side of the first disinfection and purification box. The second disinfection and purification mechanism includes a second disinfection and purification box, a fixing block is fixed on the second disinfection and purification box, a controlled voltage source is threadedly connected to the fixing block, a plurality of rotating support shafts are installed inside the second disinfection and purification box, a plurality of corona discharge components are fixed on the rotating support shafts, and a tight connecting sleeve is connected between both ends of the rotating support shafts and the second disinfection and purification box.

[0011] In one or more embodiments of the present invention, a control box is also installed on the support housing for controlling the opening and closing of the drive device inside the support housing, forming intelligent control and reducing the pressure on the staff. A pair of support strips are fixed below the support housing for controlling the opening and closing of the drive device inside the support housing, forming intelligent control and reducing the pressure on the staff.

[0012] In one or more embodiments of the present invention, the first disinfection and purification box is filled with High efficiency thermal insulation cotton Reflective plate Used to maintain the temperature of the purification delivery pipe Enhance the intensity of deep ultraviolet light inside the disinfection and purification chamber. This causes the temperature of the purification box delivery pipe to rise. UV intensity and angle Maintaining the exhaust gas within a suitable range facilitates its processing. Thorough disinfection from all angles Purification treatment improves the effectiveness of disinfection and purification.

[0013] In one or more embodiments of the present invention, a fixing ring is fixed at one end of the purification delivery pipe near the air inlet pipe to fix the one-way valve, prevent the one-way valve from falling off and prevent air leakage. The one-way valve is installed on the fixing ring to prevent exhaust gas from rushing into the sealing hood, thereby preventing exhaust gas leakage and improving the disinfection and purification effect of exhaust gas.

[0014] In one or more embodiments of the present invention, a temperature and humidity sensor is installed on the detection chamber, and a pair of sensing rods are provided on the temperature and humidity sensor. The sensing rods are inserted into the detection chamber to detect the temperature and humidity of the waste gas flowing through the detection chamber. Then, the control box determines whether the air pump and the electric control valve need to be turned on so that the temperature and humidity of the waste gas are within a suitable range, thereby improving the disinfection and purification effect.

[0015] In one or more embodiments of the present invention, a support partition is fixed inside the first disinfection and purification box to support the air pump and prevent the air pump from shaking or tilting. The air pump is installed on the support partition. By starting the air pump, outside air can be drawn in, thereby providing conditions for neutralizing the exhaust gas. A sealing cover is fixed on one side of the air pump, which is used to carry away the water vapor sprayed from the storage tank by the introduced gas, thereby increasing the humidity of the exhaust gas.

[0016] A connecting pipe is fixedly connected between the air pump and the sealing hood to transport the gas drawn in by the air pump, facilitating gas flow.

[0017] In one or more embodiments of the present invention, an electrically controlled valve is installed on the sealing hood to control whether the water vapor in the storage tank can be sprayed out, so as to facilitate intelligent control. The storage tank is threadedly connected to the electrically controlled valve to store water vapor, and the water vapor is sprayed out in a mist, which facilitates the flow of water vapor driven by the gas.

[0018] In one or more embodiments of the present invention, a plurality of rotating support shafts are fixedly connected to a transmission gear at one end outside the second disinfection and purification box. The plurality of transmission gears are meshed with each other to drive the rotation of the plurality of rotating support shafts, so that the rotating support shafts can drive the rotation of the plurality of corona discharge components, providing conditions for stirring ozone and exhaust gas. Furthermore, by utilizing the meshing of the plurality of transmission gears, adjacent pairs of rotating support shafts rotate in opposite directions, thereby improving the mixing effect of ozone and exhaust gas, and thus improving the disinfection and purification effect.

[0019] In one or more embodiments of the present invention, an electric motor is installed on one side of one of the transmission gears to drive the rotation of the transmission shaft and provide power for driving the rotation of multiple rotating support shafts. The transmission shaft is fixedly connected between the electric motor and the transmission gear to play a transmission role. A support base is fixed below the electric motor to support the electric motor, improve the stability of the electric motor, and prevent the electric motor from tilting or shaking.

[0020] In one or more embodiments of the present invention, the second disinfection and purification box is fixedly connected to an exhaust pipe for discharging the disinfected and purified gas.

[0021] Compared with existing technologies, this invention improves the purification effect of medical negative pressure suction exhaust gas through the setting of corresponding mechanisms, so that bacteria and viruses in the exhaust gas can be fully purified and treated, so that the gas discharged outdoors no longer contains harmful components, avoiding adverse effects on the surrounding environment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective view of a medical negative pressure suction system exhaust gas disinfection device according to an embodiment of the present invention;

[0024] Figure 2 This is a cross-sectional view of a medical negative pressure suction system exhaust gas disinfection device according to an embodiment of the present invention;

[0025] Figure 3 for Figure 2 The structural diagram shown at point A in the middle;

[0026] Figure 4 for Figure 2 The structural diagram shown at point B in the middle;

[0027] Figure 5 This is a partial structural schematic diagram of a medical negative pressure suction system exhaust gas disinfection device according to an embodiment of the present invention;

[0028] Figure 6 for Figure 5 The structural diagram shown at point C is as follows;

[0029] Figure 7 This is a partial cross-sectional view of the second disinfection and purification mechanism in one embodiment of the present invention;

[0030] Figure 8 for Figure 7 The structural diagram shown at point D is shown in the middle.

[0031] Figure 9 This is a schematic diagram illustrating the working principle of a corona discharge assembly in one embodiment of the present invention.

[0032] Explanation of key figure labels:

[0033] 1-Supporting outer shell, 101-Main control screen, 102-Control box, 103-Supporting strip, 2-First disinfection and purification mechanism, 201-First disinfection and purification box, 202-Purification delivery pipe, 203-Ultraviolet lamp, 204-Inlet pipe, 205-Detection chamber, 206-Insulation cotton, 207-Fixing ring, 208-One-way valve, 209-Temperature and humidity sensor, 210-Supporting partition, 211-Air pump, 212-Sealing hood, 213-Connecting pipe, 214-Storage tank, 215-Electrically controlled valve, 3-Second disinfection and purification mechanism, 301-Second disinfection and purification box, 302-Fixing block, 303-Controlled voltage source, 304-Rotating support shaft, 305-Corona discharge assembly, 306-Tight connection sleeve, 307-Transmission gear, 308-Motor, 309-Transmission shaft, 310-Support base, 311-Outlet pipe. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0035] like Figures 1-9 As shown, a medical negative pressure suction system exhaust gas disinfection device according to one embodiment of the present invention includes: a supporting shell 1, a first disinfection and purification mechanism 2, and a second disinfection and purification mechanism 3.

[0036] like Figure 1 As shown, a main control panel 101 is installed on the support housing 1, allowing operators to observe the equipment's operating status and know the opening and closing of each component. This facilitates timely adjustments and reduces the probability of equipment malfunction. A control box 102 is also installed on the support housing 1 to control the opening and closing of the drive equipment inside, forming intelligent control and reducing operator workload. A pair of support plates 103 are fixed to the bottom of the support housing 1 to support it, improving its stability and providing favorable conditions for exhaust gas purification.

[0037] like Figures 1-3 As shown, the first disinfection and purification mechanism 2 is installed inside the supporting housing 1. The first disinfection and purification mechanism 2 includes a first disinfection and purification box 201, which provides support for fixing the purification delivery pipe 202, preventing the purification delivery pipe 202 from shaking or tilting, and also supports the air pump 211 and the liquid storage tank 214, facilitating the intake of gas and the injection of water vapor. The purification delivery pipe 202 is installed inside the first disinfection and purification box 201 for the circulation of waste gas, facilitating the disinfection and purification of waste gas. The curved purification delivery pipe 202 allows the waste gas to receive sufficient ultraviolet irradiation during circulation, thereby improving the ultraviolet disinfection and purification effect. By installing ultraviolet lamps 203 inside the purification delivery pipe 202, the waste gas can be disinfected and purified during circulation, improving the disinfection and purification efficiency of the waste gas.

[0038] Specifically, an ultraviolet lamp 203 is fixed inside the purification delivery pipe 202 for disinfecting and purifying the exhaust gas. The ultraviolet rays emitted by the ultraviolet lamp 203 can deform the nucleic acid molecules of microorganisms, thereby losing their activity and achieving the purpose of disinfection and purification.

[0039] like Figures 1-3As shown, one end of the purification delivery pipe 202 is fixedly connected to an air inlet pipe 204 for introducing waste gas into the purification delivery pipe 202. By connecting the air inlet pipe 204 to the hospital's waste gas treatment room, medical waste gas can be introduced into the purification delivery pipe 202 through the air inlet pipe 204, thereby facilitating rapid disinfection and purification of the medical waste gas. A detection chamber 205 is installed on the air inlet pipe 204 for convenient detection of the temperature and humidity of the waste gas, thereby facilitating timely adjustment of the temperature and humidity of the waste gas to improve the disinfection and purification effect.

[0040] like Figures 5-6 As shown, a temperature and humidity sensor 209 is installed on the detection chamber 205. The sensor 209 has a pair of sensing rods, which are used to detect the temperature and humidity of the exhaust gas. The temperature and humidity sensor 209 is electrically connected to the control box 102, allowing it to quickly transmit the temperature and humidity data of the exhaust gas to the control box 102. The sensing rods are inserted into the detection chamber 205 to detect the temperature and humidity of the exhaust gas flowing through it. The control box 102 then determines whether to activate the air pump 211 and the electric control valve 215 to maintain the temperature and humidity of the exhaust gas within a suitable range, thereby improving the disinfection and purification effect.

[0041] In addition, the first disinfection and purification box 201 is filled with heat insulation cotton 206 to maintain the temperature of the purification delivery pipe 202, so that the temperature of the purification delivery pipe 202 is always kept in a suitable range, which facilitates the purification treatment of waste gas and improves the disinfection and purification effect.

[0042] Specifically, for ultraviolet (UV) disinfection: Temperature: Generally, a temperature between 20-40℃ is most effective. Higher temperatures may affect the penetration of UV rays, thus reducing the disinfection effect. Humidity: Relative humidity should be controlled between 40%-80%. High or low humidity may affect the propagation of UV rays and the disinfection effect.

[0043] like Figures 1-4 As shown, a retaining ring 207 is fixed to one end of the purification delivery pipe 202 near the air inlet pipe 204 to secure the one-way valve 208, preventing it from falling off and preventing air leakage. The one-way valve 208 is installed on the retaining ring 207 to prevent exhaust gas from rushing into the sealing hood 212, thereby preventing exhaust gas leakage and improving the disinfection and purification effect of the exhaust gas.

[0044] like Figures 1-4As shown, a support partition 210 is fixed inside the first disinfection and purification chamber 201 to support the air pump 211, preventing it from shaking or tilting and improving its stability. This allows the air pump 211 to stably draw in outside air. The air pump 211 is mounted on the support partition 210, and by activating it, outside air is drawn in, thus providing conditions for neutralizing the waste gas. A sealing hood 212 is fixed to one side of the air pump 211, which carries away the water vapor sprayed from the liquid storage tank 214, thereby increasing the humidity of the waste gas.

[0045] A connecting pipe 213 is fixedly connected between the air pump 211 and the air sealing cover 212 to transport the gas drawn in by the air pump 211 and facilitate the flow of gas.

[0046] like Figures 1-2 As shown, an electrically controlled valve 215 is installed on the sealing hood 212 to control whether water vapor in the storage tank 214 can be ejected, facilitating intelligent control. The electrically controlled valve 215 is electrically connected to the control box 102, allowing the control box 102 to easily control the opening and closing of the electrically controlled valve 215, thereby controlling whether water vapor in the storage tank 214 is ejected. The storage tank 214 is threadedly connected to the electrically controlled valve 215 for storing water vapor, and the water vapor is ejected in a mist form, thus facilitating the flow of water vapor driven by the gas.

[0047] Specifically, by drawing in outside air and introducing it into the exhaust gas, it not only regulates the temperature of the exhaust gas but also reduces its concentration. In the process of purifying medical exhaust gas, maintaining a reasonable temperature range can improve the effect of ultraviolet disinfection and purification, and reducing the concentration of exhaust gas is also beneficial for the disinfection and purification of ultraviolet light and ozone.

[0048] like Figures 1-8 As shown, the second disinfection and purification mechanism 3 is installed on one side of the first disinfection and purification box 201. The second disinfection and purification mechanism 3 includes a second disinfection and purification box 301, which provides space for ozone generation and ozone disinfection and purification, allowing ozone to mix fully with medical waste gas and improving the disinfection and purification effect of the waste gas. A fixing block 302 is fixed on the second disinfection and purification box 301. The fixing block 302 is threadedly connected to a controlled voltage source 303, which allows the controlled voltage source 303 to be quickly disassembled and installed. The controlled voltage source 303 is threadedly connected to the fixing block 302, which provides power voltage to multiple corona discharge components 305, thereby facilitating corona discharge of the air and generating ozone while purifying the waste gas, thus improving the purification effect of the waste gas. By electrically connecting with the control box 102, the control box 102 can control the start and stop of the controlled voltage source 303. Thus, when the exhaust gas enters the second disinfection and purification box 301, the control box 102 can control the start of the controlled voltage source 303 to achieve disinfection and purification of the exhaust gas.

[0049] like Figures 7-9 As shown, the second disinfection and purification chamber 301 is equipped with multiple rotating support shafts 304. Multiple corona discharge components 305 are fixed on the rotating support shafts 304. Each corona discharge component 305 includes a high-voltage electrode, a grounding electrode, and a dielectric. When the voltage between the high-voltage electrode and the grounding electrode reaches a certain level, the electric field strength ionizes the surrounding air molecules, generating charged ions and electrons. Under the influence of the electric field, these charged particles move rapidly and collide with airborne particles, causing the particles to become charged. The charged particles are attracted to the opposite electrode or collection plate by the force of the electric field, thus achieving particle capture and removal. Furthermore, ozone is generated during the corona discharge process. When ozone mixes with exhaust gas, it also achieves disinfection and purification. The outside air drawn in by the air pump 211 further facilitates ozone generation, ensuring that the exhaust gas is fully purified by ozone. The ozone and exhaust gas are stirred and mixed by the rotating support shaft 304 and the corona discharge component 305, so that the ozone and exhaust gas can be fully mixed, thereby improving the disinfection and purification effect. Both ends of the rotating support shaft 304 are connected to the second disinfection and purification box 301 with tight connecting sleeves 306 to improve the sealing and prevent ozone and exhaust gas leakage.

[0050] Specifically, when ozone mixes with waste gas, its strong oxidizing properties cause the cell membranes and genetic material of microorganisms in the waste gas to be oxidized and destroyed, thereby achieving disinfection. The effectiveness of ozone disinfection is related to factors such as ozone concentration and contact time. Ozone disinfection: Temperature: Generally, the effect is better between 15-30℃. Higher temperatures may promote ozone decomposition, thus reducing the disinfection effect. Therefore, the temperature of the waste gas will decrease after being transported through the purification delivery pipe 202, so that the temperature of the waste gas after ultraviolet purification is just suitable for ozone disinfection.

[0051] like Figures 5-8 As shown, multiple rotating support shafts 304 are fixedly connected to one end of each shaft outside the second disinfection and purification chamber 301, with transmission gears 307 meshing with each other to drive the rotation of the rotating support shafts 304. This allows the rotating support shafts 304 to drive the rotation of multiple corona discharge components 305, providing conditions for mixing ozone and exhaust gas. Furthermore, the meshing of the multiple transmission gears 307 ensures that adjacent pairs of rotating support shafts 304 rotate in opposite directions, thereby improving the mixing effect of ozone and exhaust gas, and thus enhancing the disinfection and purification effect.

[0052] like Figures 1-5As shown, a motor 308 is mounted on one side of one of the transmission gears 307 to drive the rotation of the transmission shaft 309, providing power for the rotation of multiple rotating support shafts 304. The transmission shaft 309 is fixedly connected between the motor 308 and the transmission gear 307 for transmission. A support base 310 is fixed below the motor 308 to support it, improving its stability and preventing it from tilting or wobbling.

[0053] In addition, the second disinfection and purification box 301 is fixedly connected to an exhaust pipe 311 for discharging the disinfected and purified gas. An external pipe is also fixedly connected to the exhaust pipe 311 to discharge the purified waste gas. Before being discharged into the atmosphere, the waste gas needs to be tested to see if it contains harmful substances and ozone, and whether the ozone in the waste gas has been fully eliminated. Only after passing the test will it be discharged into the atmosphere. This also prevents the air pump 211 from quickly sucking in the freshly discharged waste gas, so as not to reduce the disinfection and purification effect of the subsequent waste gas.

[0054] In practical use, medical waste gas is introduced into the purification delivery pipe 202 through the air inlet pipe 204. During the introduction process, the temperature and humidity of the medical waste gas are detected by the temperature and humidity sensor 209 and then displayed on the main control screen 101 for staff to observe. The medical waste gas is sterilized and purified in the purification delivery pipe 202 by the ultraviolet lamp tube 203. The ultraviolet rays emitted by the ultraviolet lamp tube 203 can deform the nucleic acid molecules of microorganisms, thereby losing their activity and achieving the purpose of disinfection and purification.

[0055] However, when the temperature and humidity sensor 209 detects that the medical waste gas is not within the appropriate range, the control box 102 can control the opening of the air pump 211 and the solenoid valve 215. After the air pump 211 is started, it will draw in the outside air and then pass it into the sealing hood 212 through the connecting pipe 213. Then it will be delivered into the purification delivery pipe 202 through the one-way valve 208, thereby neutralizing the temperature of the waste gas and improving the purification effect. In addition, the contact between the air and the waste gas can also reduce the concentration of the waste gas. When the solenoid valve 215 is opened, the water vapor in the liquid storage tank 214 will be sprayed out, thereby increasing the humidity of the waste gas and further improving the purification effect.

[0056] After the first purification stage, the exhaust gas enters the second disinfection and purification chamber 301. At this time, the control box 102 controls the controlled voltage source 303 to turn on, which supplies power to multiple corona discharge components 305, enabling the corona discharge components 305 to perform corona discharge on the air, thereby disinfecting and purifying the exhaust gas. During use, the corona discharge components 305 also generate ozone. The mixing of ozone with the exhaust gas can further enhance the disinfection and purification effect of the exhaust gas. Then, the motor 308 is started, which drives the rotation of multiple transmission gears 307, thereby causing multiple rotating support shafts 304 and corona discharge components 305 to rotate, which can further enhance the mixing of ozone with the exhaust gas. This allows the ozone to destroy the cell membrane and genetic material of viruses, achieving the purpose of disinfection and purification. Finally, the purified gas is discharged from the exhaust pipe 311.

[0057] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0058] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A medical negative pressure suction system exhaust gas disinfection device, characterized in that, include: A supporting shell (1) is provided, on which a main control screen (101) is mounted; The first disinfection and purification mechanism (2) is installed inside the supporting shell (1). The first disinfection and purification mechanism (2) includes a first disinfection and purification box (201). A purification delivery pipe (202) is installed inside the first disinfection and purification box (201). An ultraviolet lamp tube (203) is fixed inside the purification delivery pipe (202). An air inlet pipe (204) is fixedly connected to one end of the purification delivery pipe (202). A detection chamber (205) is installed on the air inlet pipe (204). The second disinfection and purification mechanism (3) is installed on one side of the first disinfection and purification box (201). The second disinfection and purification mechanism (3) includes a second disinfection and purification box (301). A fixing block (302) is fixed on the second disinfection and purification box (301). A controlled voltage source (303) is threadedly connected to the fixing block (302). Multiple rotating support shafts (304) are installed inside the second disinfection and purification box (301). Multiple corona discharge components (305) are fixed on the rotating support shafts (304). Both ends of the rotating support shafts (304) are connected to the second disinfection and purification box (301) with tight connecting sleeves (306).

2. The medical negative pressure suction system exhaust gas disinfection device according to claim 1, characterized in that, A control box (102) is also installed on the supporting shell (1), and a pair of support plates (103) are fixed below the supporting shell (1).

3. The medical negative pressure suction system exhaust gas disinfection device according to claim 1, characterized in that, The first disinfection and purification box (201) is filled with thermal insulation cotton (206).

4. The medical negative pressure suction system exhaust gas disinfection device according to claim 1, characterized in that, A fixing ring (207) is fixed at one end of the purification delivery pipe (202) near the air inlet pipe (204), and a one-way valve (208) is installed on the fixing ring (207).

5. The medical negative pressure suction system exhaust gas disinfection device according to claim 1, characterized in that, A temperature and humidity sensor (209) is installed on the detection chamber (205), and a pair of sensing rods are provided on the temperature and humidity sensor (209), which are inserted into the detection chamber (205).

6. The medical negative pressure suction system exhaust gas disinfection device according to claim 1, characterized in that, The first disinfection and purification box (201) is fixed with a support partition (210), and an air pump (211) is installed on the support partition (210). An air sealing cover (212) is fixed on one side of the air pump (211), and a connecting pipe (213) is fixedly connected between the air pump (211) and the air sealing cover (212).

7. The medical negative pressure suction system exhaust gas disinfection device according to claim 6, characterized in that, An electrically controlled valve (215) is installed on the sealing hood (212), and a liquid storage tank (214) is threadedly connected to the electrically controlled valve (215).

8. The medical negative pressure suction system exhaust gas disinfection device according to claim 1, characterized in that, Each of the multiple rotating support shafts (304) located outside the second disinfection and purification box (301) has a transmission gear (307) fixedly connected to one end, and the multiple transmission gears (307) are meshed with each other.

9. A medical negative pressure suction system exhaust gas disinfection device according to claim 8, characterized in that, An electric motor (308) is mounted on one side of one of the transmission gears (307), and a transmission shaft (309) is fixedly connected between the electric motor (308) and the transmission gear (307). A support base (310) is fixed below the electric motor (308).

10. A medical negative pressure suction system exhaust gas disinfection device according to claim 1, characterized in that, An air outlet pipe (311) is fixedly connected to the second disinfection and purification box (301).

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