Virus inactivation and removal device

Abstract

The invention discloses a virus inactivation and removal device, belongs to the technical field of pathogenic microorganism prevention and control, and aims to solve the problems of poor portability, ozone leakage, incomplete disinfection and the like of field sampling inactivation equipment. The device comprises an outer box assembly, an inner container functional assembly, an upper cover functional assembly and an electric control system, wherein the outer box is provided with a telescopic pull rod and a fourth-generation mute brake wheel, and a pressing type sealing lock catch is used for preventing ozone leakage; the inner container bracket is provided with 14 multi-specification detection bottle holes, is adaptive to different sampling bottles and has no killing angle; an ozone generator, a 265-285 nm cold electrode ultraviolet lamp (dual-mechanism disinfection) and a plasma module (residue removal) are integrated on the upper cover; and the electric control system realizes an automatic program (starting after sealing and alternately starting the plasma module to remove ozone after disinfection) through a logic control board. The device can be pushed by a single person, the 30,000-milliampere lithium battery supports 30 times of continuous operation, and the device is suitable for disinfection of a sewage new crown sampler, can also be popularized to the fields of environmental protection, sanitation and the like, and is safe, efficient and free of secondary pollution.

Description

Technical Field

[0001] This application relates to the technical field of pathogenic microorganism control, and in particular to a virus inactivation and removal device. Background Technology

[0002] Wastewater epidemiological monitoring has become an important means of early warning of human infection—by detecting SARS-CoV-2 virus in wastewater, it is possible to assess the scale of regional infection and trace variant strains. However, during wastewater sampling, the virus carried by the sampler can easily cause secondary contamination during transportation and storage, threatening the health of operators. Therefore, there is an urgent need for on-site rapid inactivation equipment. However, existing virus inactivation equipment has the following key defects, making it difficult to meet practical needs: 1. Insufficient portability: Most existing inactivation devices are fixed tabletop structures without moving parts (such as pull rods or silent wheels), which are heavy and cumbersome to operate. They cannot meet the needs of rapid transfer in decentralized sampling scenarios such as communities and farmers' markets. Multiple operators are required to carry them, resulting in low work efficiency.

[0003] 2. Sealing and ozone leakage risks: Most devices use ordinary snap-fit ​​closures without dedicated sealing locks, making it easy for ozone to leak from the gaps in the enclosure during ozone disinfection. As a highly irritating gas, ozone leakage can irritate the respiratory tract of operators and even cause health damage, making it impossible to guarantee operational safety.

[0004] 3. Disinfection adaptability and blind spots: The inner liner brackets of existing devices are mostly of a single specification, which can only be used to disinfect sampling bottles of a specific size. They cannot meet the simultaneous disinfection of sampling bottles of multiple sizes such as 500ml and 200ml. In addition, there is no reasonable gap design between the bracket and the bottle body and the bottom of the box, which means that ozone cannot surround the bottle body and ultraviolet light cannot cover the bottom of the bottle, forming blind spots in the disinfection and incomplete virus inactivation.

[0005] 4. Secondary pollution and ozone residue: Some devices rely solely on ozone or ultraviolet light as a single disinfection mechanism and do not have an ozone removal module. If residual ozone in the chamber after disinfection is directly emitted, it will not only pollute the environment but also cause secondary irritation to operators when the chamber is opened. There is a lack of a complete closed loop of "disinfection-residue removal".

[0006] 5. Deficiencies in intelligence and battery life: Existing devices mostly rely on manual control (such as manually switching on and off ultraviolet and ozone modules) and lack automated program logic. They are prone to affecting the effect due to operational errors (such as forgetting to close the damper or prematurely terminating the disinfection). In addition, the lithium battery has a small capacity and short battery life, most of which only support 10-15 disinfection cycles and require frequent charging. At the same time, there is no power detection and low power warning, and operators cannot predict the power status, which can easily lead to interruption of on-site operations.

[0007] 6. Inconvenient operation and maintenance: Some devices do not have a dedicated water bucket placement structure, and the cleaning water bucket must be carried separately, which is prone to cross-contamination with the sampling bottle; in addition, the external power port has poor compatibility. If the socket has poor contact (such as the contact piece of the three-hole socket and the plug post not making full contact), the power supply cannot be restored quickly, further reducing the efficiency of operation.

[0008] To address the aforementioned issues, there is an urgent need to develop a virus inactivation and removal device that is "portable, mobile, sealed and safe, adaptable to multiple specifications, thoroughly disinfects, and intelligently controlled," filling the gap in dedicated on-site sampling and inactivation equipment and ensuring the safety and efficiency of wastewater epidemiological monitoring. Summary of the Invention

[0009] This application aims to at least partially address one of the technical problems in the related art.

[0010] To achieve the above objectives, a first aspect of this application provides a virus inactivation and removal device, comprising an outer casing assembly, an inner liner functional assembly, a top cover functional assembly, and an electronic control system, wherein... The outer casing assembly includes a casing, a retractable lever, a latch, and casters. The retractable lever is telescopically mounted on one side of the outer wall of the casing; when extended, it propels the device forward, and when retracted, it is flush with the outer wall of the casing. The latch is mounted on the edge of the opening on the front of the casing and matches the corresponding fastening part of the top cover, used for sealing and locking after the casing and top cover are closed. The casters are four silent, shock-absorbing, and wear-resistant fourth-generation brake wheels, fixed at the four corners of the bottom of the casing. The inner liner functional assembly is located in the lower part of the inner cavity of the casing and includes an inner liner bracket, a detection bottle hole, and a water bucket placement bracket. The inner liner bracket is horizontally fixed in the inner cavity of the casing. The bottom is used to support the dishes to be sterilized; the detection bottle hole is a through hole penetrating the inner liner bracket, used for vertically placing the dishes to be sterilized, with a gap between the dish wall and the detection bottle hole wall, and a gap between the bottom of the dish and the bottom surface of the inner cavity of the box; the water bucket placement bracket is integrally formed on one side of the inner liner bracket, in the shape of a groove, for placing the cleaning water bucket; the upper cover functional components are set on the inner side and side wall of the upper cover, including a damper, ozone generator, internal cold ultraviolet lamp, plasma module, exhaust vent, and lithium battery; one side of the upper cover is hinged to one side of the top of the box, and can be rotated around the hinge axis to realize the opening and closing of the box; the damper is installed... The inner edge of the top cover, adapted to the edge of the cabinet opening, controls the airflow between the cabinet's internal cavity and the outside. The ozone generator is embedded inside the top cover to release ozone into the cabinet's internal cavity. Four cold ultraviolet lamps are fixed below the inner liner bracket to disinfect the cabinet's internal cavity and containers with ultraviolet light. The plasma module is installed inside the top cover near the exhaust vent to remove residual ozone from the cabinet's internal cavity. The exhaust vent is located on the side wall of the top cover and connects to the plasma module's outlet to discharge treated gas. The lithium battery is fixed inside the cabinet's internal cavity. The system provides power; the electronic control system includes a logic control board, indicator lights and buttons, and an external power port; the logic control board is fixed inside the chamber and is electrically connected to the damper, ozone generator, internal cold ultraviolet lamp, plasma module, lithium battery, indicator lights and buttons, and external power port; the indicator lights and buttons are installed on the outer wall of the front of the chamber, next to the latch, and are used to trigger the disinfection program and display the device status; the external power port is located on the side wall of the chamber and is electrically connected to the lithium battery and the logic control board, used to charge the lithium battery and power the device; the disinfection control logic executed by the logic control board is as follows: S1. After the cabinet is closed by the latch, press the indicator light button. The device will emit a "beep" sound, the indicator light button will light up green, and the disinfection program will start. S2. After the disinfection program is started, the cold ultraviolet lamp and ozone generator (4) in the control frame of the logic control board are started, the air damper is kept closed, and disinfection continues; S3. After the preset disinfection time, the device will emit two "beep" sounds to indicate that the disinfection time is up; S4. After a preset time interval following the "beep" sound, the logic control board controls the plasma module to start, the air damper opens, and the residual ozone begins to be expelled; S5. The plasma module will stop working after a preset time, the green light on the indicator button will turn off, and the entire disinfection process will end.

[0011] The virus inactivation and removal device of this application has significant advantages: First, the retractable lever combined with fourth-generation brake wheels allows for single-person operation and transfer, making it suitable for dispersed scenarios such as communities and farmers' markets, eliminating the need for multiple people to carry it and improving operational efficiency; Second, the press-type sealing lock and air damper provide double protection, preventing ozone leakage and ensuring operator safety; Third, 14 multi-sized bottle holes accommodate different sampling bottles, and the "ozone + ultraviolet" dual-mechanism disinfection, combined with a plasma module to remove residues, prevents secondary pollution; Fourth, the automated program requires no manual intervention, indicator lights provide status feedback, and the 30,000 mAh lithium battery supports 30 consecutive disinfections, allowing for simultaneous operation while charging; Fifth, it can be used for disinfection of sewage COVID-19 samplers and can also be extended to environmental protection, sanitation, and other fields, filling the gap in domestic on-site inactivation equipment.

[0012] In addition, the virus inactivation and removal device proposed in this application may also have the following additional technical features: In one embodiment of this application, the latch is a press-type sealing latch, which can prevent ozone from leaking from the gap between the box and the top cover during the disinfection process after the box and the top cover are fastened together by the latch.

[0013] In one embodiment of this application, the inner liner bracket is made of corrosion-resistant material, the detection bottle has 14 holes that are evenly distributed to accommodate sampling bottles of different sizes, and the bottom of the water bucket placement bracket has a drain hole.

[0014] In one embodiment of this application, the peak wavelength of the internal cold ultraviolet lamp is 265-285nm, and it has specific positive voltage, radiant flux and thermal resistance parameters. The outer shell is made of corrosion-resistant material to prevent corrosive gases from damaging the internal components.

[0015] In one embodiment of this application, the ozone generator produces ozone using a sheet-like surface discharge method, the outer shell is made of flame-retardant material, and the ozone diffuses into the inner cavity of the chamber through direct air diffusion.

[0016] In one embodiment of this application, the lithium battery has a capacity of 30,000 mAh, supporting the device to continuously start the disinfection program 30 times; the lithium battery is charged through an external power port, and the time required to fully charge it is 10 hours; and during the charging process, the device can operate the disinfection program normally by being powered by an external power source.

[0017] In one embodiment of this application, the upper cover functional component further includes a waterproof fan, which is fixed inside the upper cover, located at the air inlet of the plasma module, and connected in series with the plasma module; when the plasma module is started, the waterproof fan starts synchronously, guiding the residual ozone flow in the inner cavity of the chamber to the plasma module.

[0018] In one embodiment of this application, the external power port is adapted to a three-hole socket for connection to mains power; when the indicator light does not illuminate after the indicator button is pressed, the device can be powered on and started after charging for a preset time by connecting the external power port to the three-hole socket; if it still cannot be started, the three-hole socket can be replaced to solve the problem of poor contact.

[0019] In one embodiment of this application, the logic control board adopts a control method of microcontroller + C language custom code, and has a power detection function: a short press of the indicator button can trigger power detection, and the indicator status can indicate the lithium battery power; and when the device is not in use, the lithium battery is in a low power consumption working state, and the logic control board can remind the user to recharge it regularly.

[0020] In one embodiment of this application, the filter element of the plasma module adopts cold plasma coating catalyst technology, which can decompose ozone into harmless gas, ensuring that there is no ozone leakage hazard when the box is opened.

[0021] The advantages of this application compared to existing technologies are: (1) The design of retractable lever + fourth-generation brake wheel allows a single person to push and move the vehicle, adapting to dispersed scenarios such as communities and vegetable markets, improving work efficiency and eliminating the need for multiple people to move the vehicle.

[0022] (2) The double protection of the press-type sealing lock and the air door completely eliminates ozone leakage. Operators do not need to come into contact with irritating gases, and the safety factor of the operation is greatly improved.

[0023] (3) 14 multi-specification detection bottle holes are adapted to different sampling bottles, and the gap design eliminates dead corners; the "ozone + ultraviolet" dual mechanism works together, and the plasma module removes residual ozone at the same time, forming a "disinfection-residue removal" closed loop, without secondary pollution. (4) The automated disinfection program requires no manual intervention, and the indicator lights and buttons provide intuitive feedback on the battery level and program status; the 30,000 mAh lithium battery supports 30 consecutive disinfections, and can operate simultaneously while charging to avoid on-site interruptions. (5) It is not only applicable to the disinfection of sewage COVID-19 samplers, but can also be extended to environmental protection (disinfection of environmental pollutants), sanitation (preliminary disinfection of medical equipment), quarantine (disinfection of imported goods), etc., filling the gap in domestic on-site inactivation equipment, and has significant social benefits and practical value.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a perspective view of a virus inactivation and removal apparatus according to an embodiment of this application; Figure 2 This is a perspective view of a virus inactivation and removal apparatus according to another embodiment of this application; Figure 3 This is a schematic diagram of the internal structure of a virus inactivation and removal device according to an embodiment of this application; Figure 4 This is an exploded structural diagram of a virus inactivation and removal device according to an embodiment of this application; Figure 5 This is a schematic diagram of the internal structure of a virus inactivation and removal device according to another embodiment of this application; Figure 6 This is a schematic diagram of the internal structure of a virus inactivation and removal device according to another embodiment of this application; Figure 7 This is an electrical connection control diagram of a virus inactivation and removal device according to an embodiment of this application; Figure 8 This is a flowchart illustrating the disinfection control logic of a virus inactivation and removal device according to an embodiment of this application.

[0026] As shown in the figure: 1. Retractable pull rod; 2. Lock; 3. Air damper; 4. Ozone generator; 5. Inner liner bracket; 6. Detector bottle hole; 7. Water bucket placement bracket; 8. Cold ultraviolet lamp inside the rack; 9. Indicator light button; 10. Exhaust vent; 11. External power port; 12. Plasma module. Detailed Implementation

[0027] Embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. Rather, embodiments of this application include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0028] The following description, in conjunction with the accompanying drawings, describes a virus inactivation and removal device according to an embodiment of this application.

[0029] like Figures 1-8 As shown in the figure, a virus inactivation and removal device according to an embodiment of this application may include an outer casing assembly, an inner liner functional assembly, a top cover functional assembly, and an electronic control system.

[0030] Example 1: Specific structure and installation details of each component of the device 1. Outer casing components: Portable and sealed base The outer casing provides structural support and mobility for the device, and is the core component ensuring ease of on-site operation. The specific structure and installation method of each component are as follows: Cabinet: As the main frame of the device, it is made of lightweight and high-strength material. The interior is reserved with a cavity space for installing the inner liner functional components, lithium battery and electronic control system; the external contour is adapted to the installation position of the retractable pull rod 1, the moving wheels and the lock 2, to ensure that the layout of each component is compact and does not interfere with operation.

[0031] Retractable lever 1: It can be telescopically installed on the outer wall of one side of the box via an embedded sliding rail structure. When the operator needs to move the device, the lever can be extended outward to a length that is "comfortable for one person to hold and push" (e.g., 120cm, to accommodate the height of most operators); when no movement is needed, the lever can be retracted inward to keep it flush with the outer wall of the box, avoiding taking up extra storage space (e.g., preventing jamming when placing it into a sampling cart).

[0032] Lock 2: Installed on the upper edge of the opening on the front of the cabinet, it matches the corresponding fastening part (such as a boss structure) on the lower edge of the top cover. Lock 2 integrates a sealing strip inside. When pressed, the strip fits tightly against the fastening part of the top cover, achieving a sealed lock between the cabinet and the top cover. A "click" sound can be heard after locking, indicating that the seal is in place. This effectively prevents ozone from leaking from the gap between the cabinet and the top cover during the disinfection process, ensuring the health of operators.

[0033] The mobile wheels are four silent, shock-absorbing, and wear-resistant fourth-generation brake wheels, each bolted to one of the four corners of the bottom of the container (ensuring balanced support). The wheel diameter is designed to fit the surface of the site (e.g., 5cm to avoid getting stuck in paving stone gaps); the shock-absorbing structure cushions road bumps and prevents the sampling bottles inside the container from shaking and colliding; the wear-resistant material extends service life (suitable for frequent movement); each mobile wheel has an independent braking mechanism, allowing operators to secure the device by pressing the brake after pushing it to the target position, preventing displacement during disinfection.

[0034] 2. Inner liner functional components: multi-size compatibility and seamless load-bearing capacity. The inner liner functional components are located in the lower part of the cabinet's internal cavity, used to stably support the equipment to be disinfected and eliminate disinfection dead angles. Details of each component are as follows: Inner liner bracket 5: Horizontally fixed to the bottom of the inner cavity of the cabinet with bolts (approximately 0.5cm from the bottom of the cabinet to allow for UV penetration). The bracket has a rectangular structure and its dimensions are adapted to the inner cavity of the cabinet to ensure no shaking after installation.

[0035] Detection bottle hole 6: 14 circular through holes penetrating the upper and lower surfaces of the inner liner bracket 5, evenly distributed in a "2 rows and 7 columns" pattern (row and column spacing approximately 3cm to avoid mutual obstruction of sampling bottles). Two hole diameters are available: 7 holes are 5cm (suitable for 500ml standard wastewater sampling bottles), and 7 holes are 3cm (suitable for 200ml micro-sampling bottles). Operators can place the bottles according to their specifications. A gap (approximately 0.3cm) is left between the wall of each hole and the wall of the sampling bottle to ensure ozone can circulate around the bottle. After the sampling bottle is placed, a gap (approximately 0.5cm) is left between the bottom of the bottle and the bottom surface of the inner cavity of the chamber to ensure that the ultraviolet light below can cover the bottom of the bottle, avoiding the formation of a disinfection dead zone.

[0036] Bucket Placement Bracket 7: Integral injection molding with the inner liner bracket 5, located on one side of the inner liner bracket 5, in the shape of a "U-shaped groove". The groove is sized to fit a 1L capacity cleaning bucket, allowing operators to place the bucket containing disinfectant cleaning solution directly into the groove without needing to carry it separately, thus avoiding cross-contamination between the bucket and the sampling bottle. Two drainage holes with a diameter of approximately 5mm are provided at the bottom of the groove to promptly drain any overflowing cleaning solution from the bucket, preventing water residue from breeding bacteria or corroding the inner liner bracket 5.

[0037] 3. Top cover functional components: dual disinfection and residual ozone removal The functional components of the top cover are integrated into the inner side and side wall of the top cover, realizing a complete closed loop of "virus disinfection - residue removal". The installation and functional details of each component are as follows: Top cover: Hinged to one side of the top of the housing via a hinge (the hinge is made of stainless steel to prevent rust), it can be flipped upwards around the hinge axis to open and close (the maximum flipping angle is approximately 120°, making it convenient for operators to access and remove equipment). The inside of the top cover has reserved mounting slots for various functional components (such as mounting holes for the ozone generator and bracket positions for the plasma module 12), and the side wall has an exhaust vent 10 to ensure that all components are rationally arranged and work together.

[0038] Air damper 3: Installed on the inner edge of the top cover (near the cabinet opening) via a guide rail structure. The guide rail is fixed to the inner side of the top cover with screws, and air damper 3 can move horizontally back and forth along the guide rail. The size of air damper 3 perfectly matches the contour of the cabinet opening edge—when air damper 3 is closed, it completely covers the gap between the cabinet opening and the top cover; when air damper 3 is open, it allows the inner cavity of the cabinet to connect with the exhaust port 10. The opening and closing of air damper 3 is controlled by a logic control board to adapt to different needs of disinfection and residue removal.

[0039] Ozone generator 4: It adopts a "panel embedded" installation in the middle of the inner side of the top cover. The mounting hole is adapted to the size of the ozone generator shell and is fixed by a buckle (for easy maintenance and replacement in the future). When working, ozone is generated by the discharge of sheet electrodes. The ozone diffuses into the inner cavity of the chamber through "direct air diffusion" without the need for an additional air duct, ensuring that the ozone can evenly cover all the utensils to be disinfected.

[0040] The rack contains four cold-electrode ultraviolet lamps (8 in total), fixed in two locations via brackets: two at the left and right corners below the inner liner bracket 5, and two at the left and right corners inside the top cover. This arrangement ensures that ultraviolet light irradiates from both above and below, covering the top, side walls, and bottom of the sampling bottle without any blind spots. The peak wavelength of the ultraviolet lamps is 265-285nm (this wavelength has the best inactivation effect on pathogenic microorganisms such as the novel coronavirus). The outer shell is made of quartz glass (corrosion resistant, preventing damage to the internal filament from sewage or ozone), and it has specific positive voltage, radiant flux, and thermal resistance parameters (ensuring stable ultraviolet intensity).

[0041] Plasma module 12: It is fixed to the inside of the top cover near the exhaust port 10 by bolts (located inside the exhaust port), with its air inlet facing the inner cavity of the box and its air outlet directly connected to the exhaust port 10. The filter of this module adopts cold plasma coating catalyst technology, which can decompose ozone into harmless oxygen; the filter is a detachable structure, which can be replaced by the operator regularly to ensure ozone removal efficiency.

[0042] Exhaust vent 10: Located on the side wall of the top cover (preferably the right side wall, on the same side as the water bucket holder 7, so as not to obstruct front operation), it is a rectangular opening with a dust filter installed inside (to prevent external dust from entering the inner cavity of the chamber). The exhaust vent is aligned with the air outlet of the plasma module 12 to ensure that the harmless gas treated by the plasma module 12 can be smoothly discharged from the chamber.

[0043] Lithium battery: Fixed to one side of the inner cavity of the box by an insulating bracket, which is connected to the bottom of the box by screws, and the outside of the bracket is wrapped with insulating cotton (to prevent short circuit between the lithium battery and the metal parts of the box). The lithium battery has a capacity of 30,000 mAh, adopts a board-type modular structure, and supports the device to continuously start the disinfection program 30 times; the lithium battery is connected to the lithium battery charging protection board of the electronic control system (integrated into the logic control board) through wires to realize the charging and power supply functions.

[0044] Waterproof fan: Fixed to the inside of the top cover by a bracket, and located in front of the air inlet of the plasma module 12, arranged in series with the plasma module 12 (the fan outlet is aligned with the air inlet of the plasma module 12). The fan has a waterproof structure (to prevent damage from water overflowing from the cleaning bucket). When working, it generates airflow to actively guide the residual ozone flow in the inner cavity of the chamber to the plasma module 12, accelerating the ozone removal efficiency. The start and stop of the fan are synchronized with the plasma module 12 and controlled by the logic control board.

[0045] 4. Electrical Control System: Intelligent Control and Status Monitoring The electrical control system is the "brain" of the device, responsible for controlling the coordinated operation of various components and providing feedback on the equipment status. The installation and functional details of each component are as follows: Logic control board: Fixed to the side wall of the inner cavity of the enclosure (near the external power port 11 for easy wiring) by an insulating bracket. The bracket is screwed to the side wall of the enclosure. The outside of the control board is covered with a dust cover (to prevent dust from affecting the circuit). The control board adopts a microcontroller + C language custom code control method (such as STM32 series microcontrollers, whose computing speed meets the timing control requirements). It is electrically connected to the damper 3, ozone generator 4, internal cold ultraviolet lamp 8, plasma module 12, waterproof fan, lithium battery, indicator light button 9, and external power port 11 through wires. Specifically: the motor drive end of the damper 3, the power end of the ozone generator, the power end of the ultraviolet lamp, the power end of the plasma module 12, and the motor end of the fan are connected to the I / O port of the microcontroller; the voltage detection end of the lithium battery, the signal end of the indicator light button 9, and the power supply end of the external power port 11 are connected to the analog input port, interrupt signal port, and power management module of the microcontroller, respectively, to ensure that the control board can accurately control the start and stop of each component and collect data such as power and button signals in real time.

[0046] Indicator button 9: It is embedded in the outer wall of the front of the cabinet and located to the right of latch 2 (within reach of the operator after closing the cabinet). The button is covered with a waterproof cap (to prevent sewage from splashing). This button has both a trigger function and a status display: pressing it twice will trigger the disinfection program, and pressing it once will trigger the power detection. The display status includes "green solid (power sufficient / program running)", "red flashing (power insufficient)" and "yellow flashing (cabin not sealed)". It also works with a buzzer (integrated into the control board) to provide audible prompts (such as a "beep" to start, a "beep" to end, and an alarm sound to indicate a fault).

[0047] External power port 11: Located on the right side wall of the enclosure (on the same side as the exhaust vent), it is a three-hole socket (compatible with a standard three-hole plug, for AC220V mains power). The socket has a waterproof cover (closed when not in use to prevent water ingress). External power port 11 is connected to the power management module of the logic control board and the charging protection board of the lithium battery via wires. When connected to mains power, it can simultaneously "charge the lithium battery" and "power the device to operate" (charging does not affect the disinfection program). If the lithium battery is depleted, the device can be powered on and started after charging for 10 minutes.

[0048] Example 2: Complete Working Process of the Device The workflow of this device revolves around five stages: "preparation - startup - disinfection - residue removal - termination". Each stage is closely integrated with the logic control of the electronic control system to ensure convenient operation and thorough disinfection. The specific steps are as follows: 1. Preparation stage before disinfection Equipment Placement: The operator first sorts the sampling bottles to be disinfected according to their specifications—500ml sampling bottles correspond to the 5cm diameter detection bottle hole 6 on the inner liner bracket, and 200ml sampling bottles correspond to the 3cm diameter detection bottle hole 6. They are then placed vertically into the holes one by one, ensuring that the sampling bottles are upright and not tilted (to avoid liquid overflow). At the same time, it is confirmed that there is a gap between the bottle wall and the hole wall, and a gap between the bottle bottom and the bottom surface of the inner cavity of the box. Then, a 1L bucket containing disinfectant cleaning solution is placed in the groove of the bucket placement bracket 7, ensuring that the bucket is placed stably and there is no risk of spillage.

[0049] Box sealing: The operator holds the edge of the top cover and flips it downward around the hinge axis until the top cover completely covers the box opening; then, press the latch 2 on the front of the box until a "click" is heard, confirming that the latch 2 is fully engaged - at this time the sealing strip of the latch 2 is tightly attached to the top cover, the box is in a sealed state, which can prevent ozone leakage during the subsequent disinfection process.

[0050] Battery pre-check (optional): If the operator is unsure of the lithium battery's charge level, they can press the indicator light button 9 once. If the indicator light turns green, it means the battery is fully charged and the program can be started directly. If the indicator light flashes red and is accompanied by a buzzer alarm, it means the battery is low and the battery needs to be charged first through the external power port 11 into a three-hole socket. The program can only be started after the indicator light turns green.

[0051] 2. Disinfection procedure initiation phase Start-up trigger: After completing the enclosure sealing and power confirmation, the operator presses indicator light button 9. At this time, the button sends a "start signal" to the logic control board. After receiving the signal, the logic control board first checks the sealing status of latch 2 (through the built-in closure detection sensor). If the enclosure is not sealed (e.g., latch 2 is not engaged), indicator light button 9 will flash yellow and a buzzer will sound an alarm, prompting the operator to re-engage latch 2. If the enclosure is found to be sealed, the device will immediately emit a "beep" sound, and indicator light button 9 will light up green, indicating that the disinfection program has officially started.

[0052] 3. Virus disinfection stage Component coordinated action: The logic control board first sends a "close signal" to the damper 3, and the damper 3 moves along the guide rail to the fully closed position, blocking the airflow between the inner cavity of the chamber and the outside; then, the logic control board simultaneously sends a "start signal" to the cold ultraviolet lamp 8 and the ozone generator 4 inside the rack, and both start working at the same time: The rack contains 8 (4) cold ultraviolet lamps that emit ultraviolet light with a peak wavelength of 265-285nm from the top and bottom sides, which directly irradiate the surface, mouth and inside of the sampling bottle to destroy the nucleic acid structure of the virus. Ozone generator 4 generates ozone through surface discharge on a plate. The ozone diffuses into the air and fills the inner cavity of the chamber, penetrating into the gaps of the sampling bottle (such as the interface between the bottle cap and the bottle body). It works in conjunction with ultraviolet light to ensure the complete inactivation of the virus.

[0053] Process monitoring: During the disinfection process, the logic control board continuously monitors parameters such as lithium battery voltage, UV lamp operating current, and ozone generator power. If any parameter is abnormal (such as a sudden drop in lithium battery voltage or UV lamp current of 0), the logic control board will immediately stop the program, indicator light button 9 will flash red and the buzzer will sound continuously to prompt the operator to troubleshoot the fault. If the parameters are normal, the disinfection process will continue for the preset duration (set according to the on-site virus load to ensure inactivation effect).

[0054] 4. Residual Ozone Removal Stage Disinfection Completion Notification: When the preset disinfection time ends, the logic control board sends a "stop signal" to the ozone generator 4 and the cold ultraviolet lamp 8 inside the rack, and both stop working; at the same time, the device emits two "beep" sounds to inform the operator that the disinfection stage is complete.

[0055] Ozone removal activation: After a preset time interval (approximately 5 seconds, to ensure sufficient diffusion of residual ozone) following a "beep" sound, the logic control board sends a "start signal" to the plasma module 12, waterproof fan, and damper 3. The damper 3 moves along the guide rail to the fully open position, so that the inner cavity of the box is connected to the exhaust port 10; The waterproof fan starts, generating a directional airflow that pushes the residual ozone flow inside the chamber toward the plasma module 12; The cold plasma coating catalyst of plasma module 12 starts working, decomposing residual ozone into harmless oxygen. The decomposed oxygen is then discharged from the box through exhaust port 10 by the fan airflow.

[0056] Removal process control: The residual ozone removal process lasts for a preset time. During this time, the logic control board monitors the operating temperature of the plasma module 12 (to avoid overheating damage). If the temperature exceeds the threshold, the module will stop working and issue an alarm.

[0057] 5. Program End and Subsequent Operations Program termination: After the preset time for residual ozone removal ends, the logic control board sends a "stop signal" to the plasma module 12 and the waterproof fan, and both stop working; at the same time, the green light of the control indicator button 9 on the logic control board goes out, and the device automatically cuts off all power supply except for "power detection" (enters low-power standby state), and the entire disinfection program ends.

[0058] Equipment Removal: After hearing the "beep" sound and the green light goes out, the operator manually moves the unlock button of lock 2 to open lock 2, then flips the top cover upwards and takes out the disinfected sampling bottle (checking whether the sampling bottle is intact and no liquid has overflowed) and the cleaning water bucket in sequence (pour out the residual cleaning solution in the bucket and drain it through the drain hole); if continuous operation is required, the steps of "preparation stage - start-up stage" can be repeated, and new equipment to be disinfected can be placed in.

[0059] Example 3: Routine Maintenance and Troubleshooting of the Device 1. Routine maintenance Lithium battery maintenance: The lithium battery remains in a low-power operating state when the device is not in use (the logic control board needs to monitor the power level in real time), and there will be slight power loss. Therefore, it is recommended that operators recharge the lithium battery by connecting it to a three-hole socket through the external power port 11 after the device has been out of use for one week. During charging, the device can run the disinfection program normally (external power supply is given priority) and there is no need to wait for the charging to be completed. The lithium battery takes 10 hours to fully charge. After charging is completed, the green light on the indicator button 9 will stay on. At this time, the power plug can be unplugged.

[0060] Component inspection: The status of key components needs to be manually checked every week - open the top cover, start the program and observe whether the cold ultraviolet lamp 8 inside the rack is lit (if it is not lit, check the wiring or replace the lamp beads); check whether there is dust accumulation in the filter of plasma module 12 (if there is accumulation, remove the filter and blow it with compressed air); check whether the sealing strip of the lock 2 is aged (if it is aged, replace the strip to ensure a seal).

[0061] Cleaning and maintenance: The inner cavity and the inside of the top cover of the box need to be cleaned monthly. Wipe the inner liner bracket 5, the inspection bottle hole 6 and the inside of the top cover with a dry cloth to remove dust or residual liquid traces; wipe the surface of the moving wheels with a cloth dampened with neutral detergent to remove mud and sand and ensure smooth movement.

[0062] 2. Troubleshooting Indicator light not on, unable to start: If there is no response after pressing indicator light button 9, first check the lithium battery level (if there is no light after a short press of the button, it indicates that the battery is dead). Connect the battery to a three-hole socket through external power port 11 and charge for 10 minutes. Then press the button again. If it can start, it indicates that the battery is low. If it still cannot start, try a different three-hole socket (because the contact pieces inside some sockets cannot make full contact with the power plug posts, resulting in poor power supply). Try charging and starting again. If it is still ineffective after changing the socket, check if the wiring of external power port 11 is loose (if it is loose, tighten it again).

[0063] If the buzzer sounds during the disinfection process: If the indicator light flashes red and the buzzer sounds during the disinfection process, first close the program, open the top cover and check if the lithium battery wiring is loose (tighten it if loose); if the wiring is normal, check if the wiring between the ozone generator and the ultraviolet lamp is loose (reconnect if loose); if the wiring is normal, contact maintenance personnel to check the logic control board (it may be a control board malfunction).

[0064] Ozone leakage odor: If the operator smells ozone odor during the disinfection process, stop the procedure immediately, open the top cover and check if the sealing strip of lock 2 is intact (replace if damaged); check if damper 3 is fully closed (if not closed, check if damper 3 guide rail is stuck and remove any obstructions); if the sealing strip and damper 3 are normal, check if there are any foreign objects (such as dust or hair) on the mating surface of the box and the top cover, clean the foreign objects and re-fasten.

[0065] It should be noted that the control method of this application can be automatically controlled by a controller. The control method of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Furthermore, this application is mainly used to protect mechanical structures, so the control method and circuit connection will not be explained in detail here.

[0066] In summary, the virus inactivation and removal device of this application has significant advantages: First, the retractable lever combined with fourth-generation brake wheels allows for single-person operation and transfer, making it suitable for dispersed scenarios such as communities and farmers' markets, eliminating the need for multiple people to carry it and improving operational efficiency; Second, the press-type sealing lock and air damper provide double protection, preventing ozone leakage and ensuring operator safety; Third, 14 multi-sized bottle holes accommodate different sampling bottles, and the "ozone + ultraviolet" dual-mechanism disinfection, combined with a plasma module to remove residues, prevents secondary pollution; Fourth, the automated program requires no manual intervention, indicator lights provide status feedback, and the 30,000 mAh lithium battery supports 30 consecutive disinfections, allowing for simultaneous operation while charging; Fifth, it can be used for disinfection of sewage COVID-19 samplers and can also be extended to environmental protection, sanitation, and other fields, filling the gap in domestic on-site inactivation equipment.

[0067] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0069] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A virus inactivation and removal device, characterized in that, This includes outer casing components, inner liner functional components, top cover functional components, and an electronic control system. The outer casing assembly includes a casing, a retractable lever (1), a latch (2), and casters; the retractable lever (1) is telescopically installed on the outer wall of one side of the casing, and when extended, it is used to push the device to move; when retracted, it is flush with the outer wall of the casing; the latch (2) is installed on the edge of the opening on the front of the casing and is adapted to the corresponding fastening part of the top cover, and is used for sealing and locking after the casing and the top cover are closed; the casters are four silent, shock-absorbing, and wear-resistant fourth-generation brake wheels, which are fixed at the four corners of the bottom of the casing. The inner liner functional components are located in the lower part of the inner cavity of the box, including an inner liner bracket (5), a detection bottle hole (6), and a water bucket placement bracket (7); the inner liner bracket (5) is horizontally fixed to the bottom of the inner cavity of the box and is used to support the dishes to be sterilized; the detection bottle hole (6) is a through hole that passes through the inner liner bracket (5) and is used to vertically place the dishes to be sterilized, with a gap between the wall of the dish and the wall of the detection bottle hole (6), and a gap between the bottom of the dish and the bottom surface of the inner cavity of the box; the water bucket placement bracket (7) is integrally formed on one side of the inner liner bracket (5) and is in the shape of a groove, used to place the cleaning water bucket; The functional components of the upper cover are located on the inner side and side wall of the upper cover, including a damper (3), an ozone generator (4), an internal cold ultraviolet lamp (8), a plasma module (12), an exhaust vent (10), and a lithium battery; one side of the upper cover is hinged to one side of the top of the box, and can be rotated around the hinge axis to realize the opening and closing of the box; the damper (3) is installed on the inner edge of the upper cover and is adapted to the edge of the box opening, used to control the airflow communication between the inner cavity of the box and the outside; the ozone generator (4) is embedded in the inner side of the upper cover and is used to generate oxygen for the airflow into the box. Ozone is released inside the box cavity; there are four cold ultraviolet lamps (8) in the frame, which are fixed below the inner liner bracket (5) and used to disinfect the box cavity and the dishes with ultraviolet light; the plasma module (12) is installed on the inside of the top cover near the exhaust port (10) and is used to remove residual ozone from the box cavity; the exhaust port (10) is opened on the side wall of the top cover and is connected to the air outlet of the plasma module (12) and is used to discharge the treated gas; the lithium battery is fixed inside the box cavity and provides power to the device. The electrical control system includes a logic control board, indicator light buttons (9), and an external power port (11). The logic control board is fixed inside the cabinet and is electrically connected to the damper (3), ozone generator (4), internal cold ultraviolet lamp (8), plasma module (12), lithium battery, indicator light buttons (9), and external power port (11). The indicator light buttons (9) are installed on the outer wall of the front of the cabinet, next to the latch (2), and are used to trigger the disinfection program and display the status of the device. The external power port (11) is opened on the side wall of the cabinet and is electrically connected to the lithium battery and the logic control board. It is used to charge the lithium battery and power the device with an external power source. The disinfection control logic executed by the logic control board is as follows: S1. After the box is closed by the latch (2), press the indicator light button (9), the device will make a "beep" sound, the indicator light button (9) will light up green, and the disinfection program will start; S2. After the disinfection program is started, the cold ultraviolet lamp (8) and ozone generator (4) in the control frame of the logic control board are started, and the air damper (3) is kept closed for continuous disinfection; S3. After the preset disinfection time, the device will emit two "beep" sounds to indicate that the disinfection time is up; S4. After a preset time interval following the "beep" sound, the logic control board controls the plasma module (12) to start, the air damper (3) to open, and the residual ozone to be expelled. S5. The plasma module (12) stops working after a preset time, the green light on the indicator button (9) goes out, and the entire disinfection process ends.

2. The virus inactivation and removal device according to claim 1, characterized in that, The latch (2) is a press-type sealing latch. When the box body and the top cover are fastened together by the latch (2), ozone can be prevented from leaking from the gap between the box body and the top cover during the disinfection process.

3. The virus inactivation and removal device according to claim 1, characterized in that, The inner liner bracket (5) is made of corrosion-resistant material. The test bottle body has 14 holes (6) that are evenly distributed to accommodate sampling bottles of different sizes. The bottom of the water bucket placement bracket (7) has a drainage hole.

4. The virus inactivation and removal device according to claim 1, characterized in that, The peak wavelength of the internal cold ultraviolet lamp (8) is 265-285nm. It has specific positive voltage, radiation flux and thermal resistance parameters. The outer shell is made of corrosion-resistant material to prevent corrosive gases from damaging the internal components.

5. The virus inactivation and removal device according to claim 1, characterized in that, The ozone generator (4) generates ozone by surface discharge in a sheet-like manner. The outer shell is made of flame-retardant material, and the ozone diffuses into the inner cavity of the box through direct air diffusion.

6. The virus inactivation and removal device according to claim 1, characterized in that, The lithium battery has a capacity of 30,000 mAh, which supports the device to start the disinfection program 30 times continuously; the lithium battery is charged through the external power port (11), and the time required to fully charge it is 10 hours; and during the charging process, the device can be powered by the external power supply to run the disinfection program normally.

7. The virus inactivation and removal device according to claim 1, characterized in that, The upper cover functional component also includes a waterproof fan, which is fixed inside the upper cover and located at the air inlet of the plasma module (12), and connected in series with the plasma module (12); when the plasma module (12) is started, the waterproof fan starts synchronously, guiding the residual ozone flow in the inner cavity of the box to the plasma module (12).

8. The virus inactivation and removal device according to claim 1, characterized in that, The external power port (11) is compatible with a three-hole socket for connecting to mains power. When the indicator light does not light up after pressing the indicator button (9), the device can be powered on and started after charging the three-hole socket for a preset time through the external power port (11). If it still cannot be started, the three-hole socket can be replaced to solve the problem of poor contact.

9. The virus inactivation and removal device according to claim 1, characterized in that, The logic control board adopts a control method of microcontroller + C language independent code and has a power detection function: a short press of the indicator button (9) can trigger power detection and indicate the power of the lithium battery through the indicator status; and the lithium battery is in a low power working state when the device is not in use, and the logic control board can remind the user to recharge regularly.

10. The virus inactivation and removal device according to claim 1, characterized in that, The filter element of the plasma module (12) uses cold plasma coating catalyst technology, which can decompose ozone into harmless gas, ensuring that there is no ozone leakage hazard when the box is opened.

Images