Nucleic acid sampling protection device

Abstract

This invention provides a nucleic acid sampling protection device, belonging to the field of medical device technology. It solves the problem of cross-infection during existing nucleic acid sampling. This nucleic acid sampling protection device includes a sampling pavilion for accommodating the person being sampled. The pavilion has an entrance / exit on its side, and a sampling window on the side of the pavilion without an entrance / exit. An exhaust vent is also provided on the top or side of the pavilion, connected to an exhaust assembly that maintains negative pressure within the pavilion. During sampling, the exhaust assembly is operational, ensuring unidirectional airflow within the pavilion while maintaining negative pressure. When the person being sampled removes their mask and opens their mouth at the sampling window, any exhaled or overflowing air is promptly absorbed by the negative pressure, preventing cross-infection between the sampled individuals. Under normal circumstances, the unidirectional airflow and the physical barrier of the sampling pavilion prevent contamination from the sampled person to the sampler.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology and relates to a nucleic acid sampling protection device. Background Technology

[0002] Air pollution caused by virus carriers during nucleic acid sampling can easily lead to cross-infection between those being sampled and contamination of the sampler. At some sampling sites, the passing of sampling swabs and tubes between the sampled individuals increases the risk of contamination between them and the sampler. Therefore, samplers must disinfect their hands after each sampling, but this increases their workload and intensity, and reduces efficiency.

[0003] To this end, a Chinese patent discloses a nucleic acid sampling service station [authorization announcement number CN217503903U], comprising: a service station body; a sampling window disposed on the service station body; an openable and closable sampling port disposed on the sampling window; and a purification device disposed on the service station body. The purification device includes an extraction component and a filtering component, the filtering component being detachably disposed on the extraction component, and one end of the extraction component extending toward the sampling window.

[0004] The air inlet of the extraction component is located on the upper outer side of the sampling window. During sampling, the air is blocked by the head of the person being sampled and the environment in which the person is sampled is a completely open, non-enclosed space. The exhaled air cannot be completely extracted by the extraction component, resulting in poor extraction effect. The unextracted air remains around the sampling port, which can easily cause cross-infection to the next person being sampled. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a nucleic acid sampling protection device that can effectively prevent cross-infection between sampled individuals and contamination of the sampled individual by the sampled individual during nucleic acid sampling.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A nucleic acid sampling protection device includes a sampling booth for accommodating a person being sampled. The sampling booth has an entrance and exit on its side, and a sampling window on one side of the sampling booth without an entrance and exit. The sampling booth also has an exhaust vent on its top or side, and the exhaust vent is connected to an exhaust assembly that can maintain negative pressure in the sampling booth.

[0008] During sampling, the sampler stands outside the sampling booth, while the person being sampled enters through the entrance. Sampling is performed through the sampling window. The ventilation system is operational during sampling, ensuring unidirectional airflow within the booth and maintaining negative pressure. Fresh air flows unidirectionally into the booth from outside through the sampling window. Exhaled or spilled air from the person being sampled, even when they have removed their mask and are speaking into the sampling window, is immediately absorbed by the negative pressure, preventing cross-infection between individuals. With unidirectional airflow and the physical barrier of the sampling booth, contamination from the sampler to the sampler is normally prevented, providing strong support for eliminating the routine requirement of hand sanitization after each sampling.

[0009] In the aforementioned nucleic acid sampling protection device, the outlet of the exhaust component is connected to the gas purification and disinfection component, which can purify, intercept, and centrally disinfect the novel coronavirus entering it.

[0010] In the aforementioned nucleic acid sampling protection device, the gas purification and disinfection component includes a water storage container, a partition cylinder disposed within the water storage container, and a heater for heating the water in the water storage container at a constant temperature. The partition cylinder divides the inner cavity of the water storage container into an air inlet chamber and an air outlet chamber. The air inlet chamber and the air outlet chamber are connected through a through hole located at the lower part of the partition cylinder. The water level in the water storage container is set higher than the through hole. The outlet of the exhaust component is connected to the air inlet chamber, and the water storage container is provided with an air outlet connected to the air outlet chamber.

[0011] The heater heats the water in the storage container to a temperature that can rapidly kill the novel coronavirus, such as 92°C, and maintains this temperature for a certain period of time. Air inside the sampling booth enters the air intake chamber through the exhaust system, dissolves in the hot water, and then flows through the vent into the air outlet chamber before exiting through the outlet. During this process, the hot water disinfects the novel coronavirus in the air. The heating function can be turned off during sampling; it is turned on after all sampling is completed for a concentrated high-temperature disinfection of the virus washed into the water.

[0012] In the aforementioned nucleic acid sampling protection device, a stirring impeller is installed inside the air outlet chamber, and a motor is installed on the top of the water storage container to drive the stirring impeller. When the motor is working, it drives the stirring impeller to stir, which enables the air and water to mix quickly and thoroughly, accelerating the purification, interception, and disinfection of the novel coronavirus.

[0013] In the above-mentioned nucleic acid sampling protection device, the water storage container is provided with a water inlet pipe facing upwards, the inlet of the water inlet pipe is provided with a cap, the water storage container is also provided with a drain pipe, and the drain pipe is provided with a valve.

[0014] When changing the water in the storage container, manually or automatically open the valve to completely drain the water in the storage container through the drain pipe, then close the valve, open the cover, and add water to the storage container through the water inlet pipe. When the water reaches the appropriate level, close the cover.

[0015] In the above-mentioned nucleic acid sampling protection device, a first exhaust fan is connected to the air outlet, and the outlet of the first exhaust fan is connected to an exhaust seat through a pipe. The exhaust seat has a funnel-shaped exhaust port with the large end facing down, and the pipe is connected to the small end of the exhaust port.

[0016] Connect an appropriately sized pipe from outside the sampling booth to an exhaust seat in an open area. Discharge the air through the exhaust seat, which should be 2-5cm off the ground.

[0017] In the above-mentioned nucleic acid sampling protection device, the exhaust port is located on the top of the sampling pavilion, the exhaust port is connected to the air inlet chamber through the exhaust pipe, and the exhaust assembly is a second exhaust fan installed on the exhaust pipe.

[0018] In the above-mentioned nucleic acid sampling protection device, a sealing plate for always keeping the sampling window closed is slidably provided on one side of the sampling pavilion. The sealing plate is provided with a sampling port. When the sealing plate slides, the sampling port is connected to or disconnected from the sampling window.

[0019] The sealing plate can move laterally or vertically, preferably vertically, thereby changing the height of the sampling port to meet the sampling requirements of different groups. The sampling port is elliptical and moves with the sealing plate. When the sealing plate moves downward to its lowest position, the height of the sampling port is at its lowest, and the sampling port is connected to the sampling window. When the sealing plate moves upward to its highest position, the sampling port is disconnected from the sampling window.

[0020] In the above-mentioned nucleic acid sampling protection device, the sampling booth is equipped with a seat, the bottom of the sampling booth is equipped with a guide groove, the lower part of the seat is equipped with a sliding part that slides with the guide groove, and the guide groove extends along the side perpendicular to the sampling window of the sampling booth.

[0021] By using guide channels and sliding parts to restrict the seat to move only in a straight line and prevent it from sliding left or right, the sampling process is standardized, the exposure time when removing the mask is reduced, and the position for removing the mask is standardized.

[0022] In the aforementioned nucleic acid sampling protection device, an air inlet is provided on the lower side of the sampling booth, and a baffle plate is hinged to the inner side of the sampling booth to block the air inlet. When the sampling port is connected to the sampling window or the entrance / exit door is open, the baffle plate blocks the air inlet; when the sampling port is disconnected from the sampling window and the entrance / exit door is closed, the baffle plate releases its blockage of the air inlet. This facilitates air cleaning at the bottom of the sampling booth after sampling and disinfection of the sampling booth by ultraviolet light.

[0023] In the aforementioned nucleic acid sampling protection device, a sampling workbench is provided on the outside of the sampling booth at the sampling window.

[0024] In the aforementioned nucleic acid sampling protection device, the top of the sampling booth is equipped with an ultraviolet lamp. After the daily nucleic acid sampling is completed, the sampling port and entrance / exit are closed, and the ultraviolet lamp inside the sampling booth is turned on to disinfect the booth.

[0025] In the aforementioned nucleic acid sampling protection device, the top of the sampling booth is equipped with a lighting lamp.

[0026] In the aforementioned nucleic acid sampling protection device, a monitoring device is installed on the sampling booth to achieve monitoring and supervision functions. This helps guide and standardize the behavior of those being sampled, improving their compliance and cooperation with nucleic acid sampling procedures. When a person being sampled enters the designated waiting area, the monitoring device senses this and prompts "Please wear your mask," while the nucleic acid sampling booth door automatically opens (unless someone is inside). The door automatically closes after the person being sampled enters the booth. When the person being sampled sits facing the sampling window and sees the sampler preparing the swab, they remove their mask. After the nucleic acid sampling is completed, they put their mask back on before getting up to leave. At this time, a prompt sound reminds them to "Please wear your mask," and the nucleic acid sampling booth door automatically opens. The door automatically closes after the person being sampled leaves the booth.

[0027] Compared with existing technologies, this nucleic acid sampling protection device has the following advantages:

[0028] The sampling window allows for unidirectional airflow, ensuring that any exhaled or overflowing air from the person being sampled when they remove their mask and open their mouth flows promptly to the ventilation vent of the sampling booth. Furthermore, the air flowing into the booth is all relatively clean, fresh air from the side of the person being sampled. Additionally, the person being sampled outside the booth samples the person sitting inside through the sampling window. This prevents cross-infection between people being sampled and also prevents contamination from people being sampled to the person being sampled. It reduces the workload of the person being sampled, improves efficiency, and simultaneously increases the cooperation and sense of security of the people being sampled. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a nucleic acid sampling protection device.

[0030] Figure 2 This is a schematic diagram of the structure of the nucleic acid sampling protection device when the sealing plate is removed.

[0031] Figure 3 This is a schematic diagram of the structure of the nucleic acid sampling protection device when it is disassembled to enter or exit the door.

[0032] Figure 4 This is a schematic diagram of the structure of the nucleic acid sampling protection device when two sides are hidden.

[0033] Figure 5This is a schematic diagram of the gas purification and disinfection component.

[0034] Figure 6 This is a cross-sectional view of the gas purification and disinfection component.

[0035] Figure 7 This is a bottom view of the top of the sampling booth.

[0036] In the diagram, 1. Sampling booth; 2. Entrance / exit; 3. Sampling window; 4. Exhaust vent; 5. Water storage container; 6. Divider; 7. Heater; 8. Air inlet chamber; 9. Air outlet chamber; 10. Through hole; 11. Air outlet; 12. Stirring impeller; 13. Motor; 14. Water inlet pipe; 15. Cover; 16. Drain pipe; 17. First exhaust fan; 18. Connecting pipe; 19. Exhaust base; 20. Exhaust pipe; 21. Second exhaust fan; 22. Seat plate; 23. Sampling port; 24. Seat; 25. Guide channel; 26. Air inlet; 27. Wind baffle; 28. Sampling workbench; 29. ​​Ultraviolet lamp; 30. Lighting lamp; 31. Divider. Detailed Implementation

[0037] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0038] like Figure 1 The nucleic acid sampling protection device shown includes a rectangular sampling booth 1 enclosed by a top, bottom, and four sides. The frame of the sampling booth 1 is made of aluminum alloy, the opaque parts are made of color steel commonly used in industrial prefabricated houses, and the light-transmitting parts are made of acrylic panels. It is expected to accommodate one adult and one child at the same time. For easy movement, locking casters are installed at the bottom of the sampling booth.

[0039] like Figure 1 and Figure 2 As shown, an entrance / exit 2 is located on one side of the sampling booth 1. The entrance / exit 2 is controlled automatically by sensors or by the person being sampled, to prevent the person being sampled from touching the doorknob of the entrance / exit 2 and thus avoiding infection. Figure 7 As shown, tubular ultraviolet lamps 29 and lighting lamps 30 are installed on the inner top of sampling booth 1. The ultraviolet lamps 29 and lighting lamps 30 are parallel to each other and are used for illumination and sterilization. Figure 3 and Figure 4 As shown, the bottom features an anti-slip design to prevent the person being sampled from slipping. After sampling, the UV lamp 29 disinfects the environment when no one is present.

[0040] In some other embodiments, there are two entrances / exits 2, which are arranged opposite each other, with one entrance / exit 2 serving as an entrance and the other as an exit.

[0041] In some other embodiments, there are two entrances / exits 2, which are arranged adjacent to each other, with one entrance / exit 2 serving as an entrance and the other as an exit.

[0042] In some other embodiments, the ultraviolet lamp 29 and the lighting lamp 30 are disposed on the side of the sampling booth 1.

[0043] In this implementation, such as Figure 1-3 As shown, a rectangular sampling window 3 is provided on the side adjacent to the entrance 2 of the sampling booth 1, and a sampling workbench 28 is provided on the outer side of the sampling booth 1 below the sampling window 3 for convenient placement of sampling tools.

[0044] The sampling workbench 28 can be integrated with the sampling pavilion 1; or the sampling workbench 28 can be designed as a height-adjustable structure; or the sampling workbench 28 can be designed as a foldable structure for easy storage.

[0045] In some other embodiments, the sampling window 3 is positioned opposite to the entrance / exit door 2.

[0046] like Figure 1 and Figure 2 As shown, vertically extending slide rails are provided on both sides of the sampling window 3, and the two slide rails are arranged opposite each other. A sealing plate 22, which is used to keep the sampling window 3 closed at all times, is slidably installed within the two slide rails. The sealing plate 22 is made of ordinary glass and has an elliptical sampling port 23. The major axis of the sampling port 23 extends vertically. The up and down movement of the sealing plate 22 can change the height of the sampling port 23 and the size of the sampling operation port to meet the sampling requirements of different groups of people. When the sealing plate 22 moves down to the lowest position, the height of the sampling port 23 is the lowest, and at this time the sampling port 23 is connected to the sampling window 3. When the sealing plate 22 moves up to the highest position, the sampling port 23 is disconnected from the sampling window 3. When the sealing plate 22 moves into position, it can stay in the current position.

[0047] In some other embodiments, the movement of the sealing plate 22 can be electrically driven, such as by setting an electric push rod. The telescopic end of the electric push rod is fixedly connected to the sealing plate 22. When the electric push rod extends or retracts, it can drive the sealing plate 22 to slide up and down. When the height needs to be adjusted, the sampler presses the corresponding up or down button on the sampling booth 1 to realize the automatic adjustment of the sealing plate 22.

[0048] like Figure 7 As shown, an exhaust vent 4 is provided at the top of the sampling booth 1, located between the lighting lamp 30 and the ultraviolet lamp 29. Figure 4 As shown, the exhaust port 4 is connected to the exhaust assembly through the exhaust pipe 20. The exhaust assembly can maintain negative pressure in the sampling pavilion 1. The outlet of the exhaust assembly is connected to the gas purification and disinfection assembly, which can purify, intercept and centrally disinfect the novel coronavirus entering it.

[0049] like Figure 5 and 6 As shown, the ventilation assembly is a second exhaust fan 21 installed on the exhaust pipe 20. During nucleic acid sampling, the air inside the sampling booth 1 flows in one direction from the sampling window 3. The sampling booth 1 is kept under negative pressure to ensure that the person sampling outside the sampling booth 1 does not inhale air that may have been contaminated by the person being sampled before, while sampling the person being sampled inside the sampling booth 1 through the sampling window 3.

[0050] The sampling booth 1 uses negative pressure to collect the gas exhaled by the person being sampled. This gas is then passed through a gas disinfection device, which is a high-temperature water disinfection system. After being purified and disinfected by the high-temperature water in this system, the gas is released into the air, which is environmentally friendly and will not have any impact on the environment.

[0051] like Figure 5 and 6 As shown, the gas purification and disinfection assembly includes a cylindrical water storage container 5, a cylindrical baffle 6 coaxially disposed within the water storage container 5, and a heater 7 for constant-temperature heating of the water in the water storage container 5. The heater 7 is located at the bottom of the water storage container 5. Figure 6 As shown, the partition cylinder 6 divides the inner cavity of the water storage container 5 into an annular air inlet chamber 8 and a cylindrical air outlet chamber 9. The air inlet chamber 8 is arranged around the air outlet chamber 9. The air inlet chamber 8 and the air outlet chamber 9 are connected by a through hole 10 located at the lower part of the partition cylinder 6. There are several through holes 10, which are evenly distributed in the circumferential direction.

[0052] The working principle of this gas purification and disinfection component is that the air in the sampling booth 1 is drawn into the water storage container 5 through the exhaust component. After a period of high-temperature disinfection, it ensures that any possible COVID-19 virus in the air passing through the water storage container 5 is completely eliminated.

[0053] Water is stored in water storage container 5, and the liquid level is higher than the height of through hole 10, such as Figure 6 As shown, the outlet of the exhaust assembly is connected to the air inlet chamber 8. The water storage container 5 is provided with an air outlet 11 connected to the air outlet chamber 9. The air outlet 11 is connected to an exhaust seat 19 via a pipe 18. A first exhaust fan 17 is installed on the pipe 18. The exhaust seat 19 has a funnel-shaped exhaust port with the larger end facing down. The pipe 18 is connected to the smaller end of the exhaust port. A pipe 18 of appropriate size is connected from outside the sampling pavilion 1 to an open area to connect to the exhaust seat 19, so that the hot air flowing out of the pipe 18 can be collected as condensate. To facilitate the exhaust of gas, the exhaust seat 19 is 2-5 cm off the ground.

[0054] Connector 18 is a PVC corrugated plastic pipe or a spiral pipe with reinforcing steel.

[0055] like Figure 6As shown, an impeller 12 is installed inside the air outlet chamber 9, and a motor 14 is installed on the top of the water storage container 5 to drive the impeller 12 to agitate. When the motor 14 is working, it drives the impeller 12 to agitate, which enables the air and water to mix quickly and accelerates the water-washing and purification of the novel coronavirus.

[0056] like Figure 5 and Figure 6 As shown, the water storage container 5 is equipped with an upward-facing water inlet pipe 14, and a cap 15 is threadedly connected to the inlet of the water inlet pipe 14. The water storage container 5 is also equipped with a drain pipe 16, which has a valve. When replacing the water in the water storage container 5, the valve is opened manually or automatically to completely drain the water in the water storage container 5 through the drain pipe 16, and then the valve is closed. Then, the cap 15 is opened, and water is added to the water storage container 5 through the water inlet pipe 14. When the water reaches the appropriate level, the cap 15 is closed.

[0057] like Figure 4 As shown, at one corner of the sampling booth 1, two partitions 31 divide the inner cavity of the sampling booth 1 into an independent space with a positive cross-section, which is used to install the water storage container 5, the first exhaust fan 17, the second exhaust fan 21, the connecting pipe 18 and the exhaust pipe 20. The outer ends of the water inlet pipe 14 and the drain pipe 16 extend out of the sampling booth 1 to facilitate water inlet and drainage.

[0058] like Figure 3 and Figure 4 As shown, the sampling booth 1 is equipped with a seat 24. The bottom of the sampling booth 1 has two parallel guide grooves 25, which are perpendicular to the sealing plate 22. The lower part of the seat 24 has sliding parts that slide in conjunction with the guide grooves 25. Each guide groove 25 has at least two sliding parts that slide in conjunction with it. To prevent the sliding parts from coming out of the guide grooves 25, the guide grooves 25 are T-shaped, and the sliding parts are also T-shaped. Both ends of the guide grooves 25 are dead ends.

[0059] The seat 24 can only move forward and backward, not left and right, ensuring that the person being sampled is positioned in the center of the sampling window 3. This reduces the exposure time after the person removes their mask in the sampling booth 1 and also standardizes the location where the person removes their mask, thus standardizing the sampling process. The seat 24 measures 300*400mm and has a forward and backward movement of 400mm; its closest distance from the sampling window 3 is 200mm, and its furthest distance is 600mm.

[0060] like Figure 1-4As shown, each of the lower sides of the sampling booth 1 is equipped with an air inlet 26. The inner side of the sampling booth 1 is hinged with wind deflectors 27, the same number as the air inlets 26, which are arranged in a one-to-one correspondence. The wind deflectors 27 are used to block the air inlets 26. When the sampling port 23 is connected to the sampling window 3 or the entrance / exit door 2 is open, the wind deflectors 27 block the air inlets 26 under their own weight. When the sampling port 23 is disconnected from the sampling window 3 and the entrance / exit door is closed, the wind deflectors 27 release their blockage of the air inlets 26. This facilitates air cleaning at the bottom of the sampling booth after sampling and disinfection of the sampling booth by ultraviolet light.

[0061] In this embodiment, the sampling booth 1 is equipped with a sampling counting module with automatic counting and reminder functions. This module can assist the sampler in counting the number of people in each mixed sample tube and promptly remind the sampler to replace the sampling tube. This saves the sampler's manpower expenditure, improves the accuracy of sampling, reduces workload, eliminates the need for the sampled person to pass the sampling tube and other consumables, and avoids contact contamination between the sampled person and the sampler. This provides favorable support for eliminating the routine of hand disinfection after each sampling.

[0062] An operation panel is installed at sampling window 3 to control the up-and-down movement of the sealing plate 22 and the opening and closing of the entrance / exit door 2. The operation panel is waterproof. Figure 1 and Figure 2 As shown, the counting display screen and the operation panel are both embedded in the right-hand wall of the sampling workbench 28.

[0063] like Figure 1 and Figure 2 As shown, the top of the sampling pavilion 1 has a double-layer structure, with the exhaust vent 4 located on the lower layer of the double-layer structure and the exhaust pipe 20 located between the double-layer structure so that it is not exposed.

[0064] In this embodiment, a loudspeaker is installed inside the sampling booth 1.

[0065] The brief instructions for using this nucleic acid sampling protection device are as follows:

[0066] 1. Connect the power supply to sampling booth 1 and press the start button on sampling booth 1. The ventilation system will start.

[0067] 2. Open sampling port 23 and wait for sampling;

[0068] 3. When the first person wearing a mask enters the designated waiting area for nucleic acid testing, a loudspeaker will announce "Please wear your mask properly" and the entrance / exit 2 will open automatically. After the person being tested enters the sampling booth 1, the entrance / exit 2 will close automatically.

[0069] 4. After the person being sampled sits facing sampling window 3 (if the person being sampled has a special height, the sampler can adjust the height of sampling port 3), wait for the sampler to be ready, then remove the mask and complete the sampling;

[0070] 5. After the nucleic acid sampling is completed, the person being sampled should put on a mask before getting up to leave. At this time, a prompt will sound saying "Please put on your mask properly". At the same time, the entrance and exit 2 of sampling booth 1 will open automatically, and the person being sampled may leave sampling booth 1. After the person being sampled leaves, the entrance and exit 2 of sampling booth 1 will close automatically again.

[0071] 6. At this time, the sampling personnel counter increments by 1 and emits a short "beep" sound; if the number of people in the mixed tubes is reached, the counter's mixed tube display number automatically resets to zero and emits a long "beep" sound.

[0072] 7. When the next person being sampled enters the waiting area of ​​sampling booth 1, entrance door 2 will automatically open again and prompt "Please wear your mask". After the person being sampled enters sampling booth 1, entrance door 2 will automatically close; (If there are people being sampled inside the sampling booth at this time, entering the waiting area will be invalid).

[0073] 8. After the daily nucleic acid sampling is completed, close the sampling port 23, turn on the ultraviolet lamp 29 in the sampling booth 1 to disinfect the sampling booth 1, and start the heater 7 at the same time or in advance. When the water in the water storage container 5 reaches 92 degrees, it will automatically enter the constant temperature and start the timer. After 10 minutes, the valve (solenoid valve) on the drain pipe 16 will open, and the water in the water storage container 5 will be automatically discharged through the drain pipe 16. Then, unscrew the cap 15 on the water inlet pipe 14 to add water until no more water can be added. Then tighten the cap 15.

[0074] 9. Turn off the sampling booth button, turn off the gas purification and disinfection components and the ultraviolet lamp switch, and unplug the external power supply.

[0075] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A nucleic acid sampling protection device, characterized in that, The sampling device includes a sampling pavilion (1) for accommodating the person being sampled. The pavilion (1) has an entrance / exit (2) on its side. A sampling window (3) is located on one side of the pavilion (1) without the entrance / exit (2). An exhaust vent (4) is located on the top or side of the pavilion (1). The exhaust vent (4) is connected to an exhaust assembly, which maintains negative pressure in the pavilion (1). A sliding feature on the side of the pavilion (1) with the sampling window (3) is used to keep the sampling window closed. The sampling window (3) has a sealing plate (22) with a sampling port (23). When the sealing plate (22) slides, the sampling port (23) is connected to or disconnected from the sampling window (3). The sampling pavilion (1) has an air inlet (26) on its lower side. The sampling pavilion (1) has a wind deflector (27) hinged to its inner side for blocking the air inlet (26). When the sampling port (23) is connected to the sampling window (3) or the door (2) is opened, the wind deflector (27) is blocked. The air inlet (26) is blocked. When the sampling port (23) is disconnected from the sampling window (3) and the door (2) is closed, the baffle plate (27) is released from blocking the air inlet (26). The outlet of the exhaust assembly is connected to the gas purification and disinfection assembly, which can purify, intercept and centrally disinfect the viruses entering it. The gas purification and disinfection assembly includes a water storage container (5), a partition cylinder (6) installed in the water storage container (5), and a device for cleaning the water storage container (5). The heater (7) heats the water in the water storage container (5). The partition (6) divides the inner cavity of the water storage container (5) into an air inlet chamber (8) and an air outlet chamber (9). The air inlet chamber (8) and the air outlet chamber (9) are connected through a through hole (10) located at the lower part of the partition (6). The water level in the water storage container (5) is set higher than the through hole (10). The outlet of the exhaust assembly is connected to the air inlet chamber (8). The water storage container (5) is provided with an air outlet (11) connected to the air outlet chamber (9).

2. The nucleic acid sampling protection device according to claim 1, characterized in that, The air outlet chamber (9) is equipped with a stirring impeller (12), and the top of the water storage container (5) is equipped with a motor (13) for driving the stirring impeller (12) to stir.

3. The nucleic acid sampling protection device according to claim 1, characterized in that, The water storage container (5) is provided with an upward-facing water inlet pipe (14), and a cap (15) is provided at the inlet of the water inlet pipe (14). The water storage container (5) is also provided with a drain pipe (16), and a valve is provided on the drain pipe (16).

4. The nucleic acid sampling protection device according to claim 1, characterized in that, A first exhaust fan (17) is connected to the air outlet (11). The outlet of the first exhaust fan (17) is connected to an exhaust seat (19) through a pipe (18). The exhaust seat (19) has a horn-shaped exhaust port with the large end facing down. The pipe (18) is connected to the small end of the exhaust port.

5. The nucleic acid sampling protection device according to claim 1, characterized in that, The exhaust port (4) is located on the top of the sampling pavilion (1). The exhaust port (4) is connected to the air inlet chamber (8) through the exhaust pipe (20). The exhaust assembly is a second exhaust fan (21) located on the exhaust pipe (20).

6. The nucleic acid sampling protection device according to claim 1, characterized in that, The sampling booth (1) is equipped with a seat (24), and the bottom of the sampling booth (1) is equipped with a guide groove (25). The lower part of the seat (24) is equipped with a sliding part that slides with the guide groove (25). The guide groove (25) extends along the side perpendicular to the sampling window (3) set in the sampling booth (1).

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