An air disinfection device and a disinfection method

Abstract

The utility model provides an air disinfection device and disinfection method relates to air disinfection sterilization technical field, wherein the air disinfection device includes the main part, the main part front side fixedly connected with the air inlet filter screen, and the main part rear side is equipped with the air outlet net, the main part inside fixed mounting has the fan subassembly and the plasma generator, the main part below fixedly connected with the base, the base below fixed mounting has the universal ball subassembly, and the base is slidably connected with the sliding frame, is equipped with the sucking disc in the sliding frame outside end, the base is equipped with the drive rotation mechanism of drive sucking disc rotation, when sucking disc adsorbs on the ground, starts drive rotation mechanism and drives the main part to rotate around sucking disc, the utility model provides an air disinfection device and disinfection method, through setting up different working mode, makes disinfection device can revolve around sucking disc and do circular track movement, elliptical track movement, half circle track reciprocating motion, half elliptical track reciprocating motion etc., thereby can adapt to the working environment of indoor different space, increases the range of air purification.

Description

Technical Field

[0001] This invention relates to the field of air disinfection and sterilization technology, and more specifically, to an air disinfection device and disinfection method. Background Technology

[0002] An air disinfection device is a machine that disinfects air through principles such as filtration, purification, and sterilization. There are many types of air disinfection devices, including those using ozone technology, ultraviolet lamp technology, and plasma generator technology. Existing Chinese patent CN220601769U discloses an air disinfection machine that uses ultraviolet lamp technology to disinfect the air; another Chinese patent CN220852482U discloses an indoor air deodorization and disinfection device that uses a plasma generator to disinfect and purify the air. Current air disinfection devices have a limited disinfection range. Even when the height of the device is adjusted to increase the disinfection range, the disinfection area remains limited when the device is stationary, requiring constant movement of the device to disinfect the air throughout the space. Therefore, this application proposes an air disinfection device and method to overcome the shortcomings in current practical applications. Summary of the Invention

[0003] The present invention aims to solve the problem of the limited disinfection range of existing disinfection devices.

[0004] The purpose and efficacy of the air disinfection device and disinfection method of the present invention are achieved by the following specific technical means: An air disinfection device includes a hollow main body, an air inlet filter fixedly connected to the front side of the main body, and an air outlet filter provided on the rear side of the main body. A fan assembly is fixedly installed inside the main body, and a plasma generator is fixedly installed in the main body between the fan assembly and the air inlet filter. A base is fixedly connected to the bottom of the main body, and a ball joint assembly is fixedly installed below the base. A sliding frame is slidably connected to the base, extending through the base and extending outward. A suction cup is provided at the outer end of the sliding frame. A drive rotation mechanism for driving the suction cup to rotate is provided in the base. When the suction cup is attached to the ground, the drive rotation mechanism is activated to drive the main body to rotate around the suction cup. A drive movement mechanism for driving the sliding frame to slide is also provided in the base. A column is fixedly connected to the outer part of the sliding frame, the upper end of the column being higher than the upper end of the main body, and a plug is fixedly connected to the upper end of the column.

[0005] Furthermore, the driving and moving mechanism includes a reducer, which is fixedly installed in the base and also has a slide rail. The sliding frame is slidably connected in the slide rail. The output shaft of the reducer is fixedly connected to a screw, and the sliding frame has a screw hole for threaded connection with it.

[0006] Furthermore, the drive rotation mechanism includes a second reducer, which is also fixedly installed in the base. The output shaft of the second reducer is vertically upward, and a third pulley is fixedly connected to the output shaft of the second reducer. At the same time, three other identical third pulleys are rotatably connected in the base, and the four third pulleys form a rectangle. All four third pulleys are fitted onto the same second synchronous belt. The two ends of the sliding frame are rotatably connected to a first pulley and a second pulley, and the same first synchronous belt is fitted onto the first pulley and the second pulley. A concentric shaft is fixedly connected to the first pulley at one of the inner ends. The concentric shaft extends upward through the sliding frame, and a concentric gear is fixedly connected to the upwardly extended part of the concentric shaft. The concentric gear meshes with the second synchronous belt. A hollow shaft is fixedly connected to the first pulley. The upper end of the hollow shaft is rotatably connected to the inner wall of the sliding frame, and the lower side of the hollow shaft is slidably inserted into a suction cup.

[0007] Furthermore, the sliding frame is provided with an air chamber above the hollow shaft. A sealing ring is fixedly connected to the upper end of the hollow shaft. A vertical shaft hole is provided in the suction cup. The hollow shaft is slidably inserted into the shaft hole, and a sealing ring is fixedly connected to the lower side of the hollow shaft. The air chamber is connected to a vent pipe. An air pump is also provided inside the main body. The other end of the vent pipe is fixedly connected to the air pump.

[0008] Furthermore, a rotating body is rotatably connected to the outer end of the sliding frame, and the upper end of the suction cup is threaded into the rotating body. A resettable locking block one is slidably connected to the side of the suction cup, and a locking block two is slidably connected in the sliding frame. The sliding frame also has a drive reciprocating mechanism to drive the locking block two to move. A locking slot is provided on the side of the rotating body, and the locking slot is set corresponding to the locking block one and the locking block two. Both the locking block one and the locking block two are permanent magnets and they repel each other. In the initial state, the suction cup is separated from the ground, and the locking block two is locked into the locking slot. At this time, the rotation of the rotating body is restricted. When the locking block one and the locking block two are opposite to the locking slot, the drive reciprocating mechanism is activated to drive the locking block two to disengage from the locking slot, and the locking block one is locked into the locking slot by the action of the reset spring. At this time, the rotation of the rotating body and the suction cup is restricted.

[0009] Furthermore, the reciprocating drive mechanism includes a servo motor, a servo motor is fixedly installed in the sliding frame, a drive gear is fixedly connected to the output shaft of the servo motor, a driven gear is rotatably connected to the sliding frame and meshes with the drive gear, a coaxial rotating screw is fixedly connected to the driven gear, a screw hole is provided in the locking block, and the screw is threaded into the screw hole.

[0010] Furthermore, a pressure sensor is fixedly connected to the air chamber, which is used to detect the pressure inside the air chamber.

[0011] Furthermore, pulley one, pulley two, and pulley three have the same radius as the central gear, meaning they all operate at the same linear velocity.

[0012] Furthermore, the omnidirectional ball assembly includes a support base with a hemispherical recess for holding a ball. A ball bearing is provided between the ball bearing and the support base. The support base is also covered by a cover, which is fixed to the bottom of the base.

[0013] The present invention also provides an air disinfection method, comprising the following steps: S1: Move the device to a suitable indoor location and set the corresponding mode to control the device's operating trajectory and range of motion; S2: Start reducer one to move the sliding frame outward to the designated position, stop reducer one, drive reducer two to drive the suction cup to rotate, drive the suction cup to move downward to contact the ground, and then drive the reciprocating mechanism to drive the locking block two to disengage from the locking slot, and the locking block one to engage with the locking slot, completing the limit between the suction cup and the rotating body. Start the air pump to make the air chamber negative pressure, thereby making the suction cup firmly adsorbed on the ceramic plate on the ground. S3: When set to mode one, the main body moves in a circular trajectory around the suction cup. At this time, reducer two is working and reducer one is not working. The disinfection device purifies the air in the circumferential range. S4: When set to mode two, the main body moves in an elliptical trajectory around the suction cup. At this time, both reducer one and reducer two are working, and the disinfection device purifies the air within the elliptical range. S5: When set to mode three, the main body reciprocates around the suction cup in a semi-circular trajectory. At this time, only reducer two works, and reducer one does not work. In this working mode, when the main body is placed against the wall, the air in the semi-circular area against the wall is purified. S6: When set to mode four, the main body reciprocates around the suction cup in a semi-elliptical trajectory. At this time, reducer one and reducer two work together. In this working mode, when the main body is placed against the wall, the air in the semi-elliptical range against the wall is purified. S7: Uses a pressure sensor to monitor the pressure in the air chamber. When the air chamber pressure changes from negative pressure to normal pressure, stops the operation of reducer 1 and reducer 2, restarts the air pump to attach the suction cup to the ground, and then restarts reducer 1 and reducer 2. When the air chamber changes from negative pressure to normal pressure multiple times, completely stops the operation of reducer 1 and reducer 2, and issues an alarm to the user to remind them to check for suction cup adsorption malfunction.

[0014] The beneficial effects of this invention are as follows: 1. This invention provides an air disinfection device and disinfection method. By setting different working modes, the disinfection device can move around the suction cup in a circular trajectory, an elliptical trajectory, a semi-circular trajectory, a semi-elliptical trajectory, etc., thereby adapting to the working environment of different indoor spaces and increasing the range of air purification.

[0015] 2. This invention provides an air disinfection device and method. By using a pressure sensor to monitor the pressure of the air chamber, when the air chamber pressure changes from negative pressure to normal pressure, the operation of reducer one and reducer two is stopped, the air pump is restarted to attach the suction cup to the ground, and then reducer one and reducer two are restarted. This can prevent the position of the disinfection mechanism from shifting during operation. When the air chamber changes from negative pressure to normal pressure multiple times, the operation of reducer one and reducer two can be completely stopped, and an alarm will be issued to the user to remind the user to check for suction cup adsorption malfunction. Attached Figure Description

[0016] Figure 1 This is a side sectional view of the entire invention.

[0017] Figure 2 This is a cross-sectional view of the base of the present invention.

[0018] Figure 3 This is a top sectional view of the base of the present invention.

[0019] Figure 4 For the present invention Figure 2 Enlarged diagram of point A in the middle.

[0020] Figure 5 This is a cross-sectional view of the suction cup of the present invention after it has moved downwards.

[0021] Figure 6 This is a schematic diagram of the main body of the invention moving in a circular trajectory.

[0022] Figure 7 This is a schematic diagram showing the main body of the invention moving along an elliptical trajectory.

[0023] Figure 1-7 In the middle: 1-Main body, 101-Slide rail, 2-Inlet filter, 3-Plasma generator, 4-Fan assembly, 5-Outlet screen, 6-Base, 7-Universal ball assembly, 701-Support seat, 702-Ball, 703-Ball bearing, 704-Cover, 8-Sliding frame, 9-Suction cup, 901-Shaft hole, 10-Reducer I, 11-Screw I, 12-Screw hole I, 13-Pulley I, 14-Pulley II, 15-Synchronous belt I, 16-Concentric Shaft, 17-Concentric gear, 18-Pulley 3, 19-Synchronous belt 2, 20-Reducer 2, 21-Air chamber, 22-Air pressure sensor, 23-Ventilation pipe, 24-Hollow shaft, 241-Sealing ring 1, 242-Sealing ring 2, 25-Rotating body, 251-Bayonet, 26-Clamping block 1, 27-Clamping block 2, 271-Screw hole 2, 28-Screw 2, 29-Driven gear, 30-Drive gear, 31-Servo motor, 32-Column. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0025] like Figures 1 to 7 As shown, an air disinfection device includes a main body 1, which is hollow. An air inlet filter 2 is fixedly connected to the front of the main body 1, and an air outlet filter 5 is provided on the rear of the main body 1. A fan assembly 4 is fixedly installed inside the main body 1, and a plasma generator 3 is fixedly installed in the main body 1 between the fan assembly 4 and the air inlet filter 2. Both the fan assembly 4 and the plasma generator 3 use existing devices. Indoor air enters through the air inlet filter 2 through the fan assembly 4. When passing through the plasma generator 3, the plasma generator 3 generates a large-scale stable plasma to kill bacteria and viruses and decompose harmful organic matter in the air. The purified air returns to the room through the air outlet filter 5 after passing through the fan assembly 4. A base 6 is fixedly connected to the bottom of the main body 1, and a ball joint assembly 7 is fixedly installed below the base 6. A sliding frame 8 is slidably connected to the base 6, extending out of the base 6. A suction cup 9 is provided at the outer end of the sliding frame 8. The base 6 is provided with a drive rotation mechanism to drive the suction cup 9 to rotate. When the suction cup 9 is attached to the ground, the drive rotation mechanism is activated. Since the suction cup 9 is firmly attached to the ground, the power of the drive rotation mechanism drives the sliding frame 8 to rotate around the suction cup 9, thereby causing the entire chassis and the main body 1 on it to rotate around the suction cup 9. By driving the main body 1 to move within the range of motion through the drive rotation mechanism, the range of air absorption of the disinfection device can be increased, thereby increasing the disinfection range of the disinfection device and avoiding the problem of limited disinfection range of the disinfection device. The base 6 is also provided with a drive movement mechanism, which is used to drive the sliding frame 8 to slide.

[0026] Among them, such as Figures 1 to 5 As shown, the driving and moving mechanism includes a reducer 10, which is fixedly installed in the base 6. The base 6 also has a slide rail 101, and the sliding frame 8 is slidably connected in the slide rail 101. The output shaft of the reducer 10 is fixedly connected to a screw 11, and the sliding frame 8 has a corresponding screw hole 12. The screw 11 is threadedly connected in the screw hole 12. The reducer 10 drives the screw 11 to rotate. Due to the cooperation between the screw 11 and the screw hole 12, the sliding frame 8 can be driven to slide on the slide rail 101. This allows adjustment of the distance of the sliding frame 8 extending from the base 6, i.e., adjusting the straight-line distance between the main body 1 and the suction cup 9, to adjust the range of motion of the disinfection device.

[0027] Among them, such as Figures 1 to 5As shown, the driving rotation mechanism includes a second reducer 20. The second reducer 20 is also fixedly installed in the base 6. The output shaft of the second reducer 20 is vertically upward, and a third pulley 18 is fixedly connected to the output shaft of the second reducer 20. Simultaneously, three other identical third pulleys 18 are rotatably connected to the base 6. The four third pulleys 18 form a rectangle, and all four third pulleys 18 are fitted onto the same second synchronous belt 19. Pulley 13 and pulley 2 14 are rotatably connected to both ends of the sliding frame 8, and the same first synchronous belt 15 is fitted onto pulley 13 and pulley 2 14. A concentric shaft 16 is fixedly connected to one end of pulley 13, extending upward through the sliding frame 8. A concentric gear 17 is fixedly connected to the upward-extending part of the concentric shaft 16, i.e., the belt... Wheel 13 rotates synchronously with concentric gear 17 and has the same angular velocity. Concentric gear 17 meshes with synchronous belt 19, meaning that concentric gear 17 and pulley 18 have the same linear velocity. A hollow shaft 24 is fixedly connected to pulley 13. The upper end of the hollow shaft 24 is rotatably connected to the inner wall of the sliding frame 8, and the lower side of the hollow shaft 24 is slidably inserted into the suction cup 9. The reducer 20 drives pulley 18 to rotate, which in turn drives synchronous belt 19 to move. Synchronous belt 19 drives the central gear meshing with it to rotate. The rotation of the central gear drives pulley 14, which rotates synchronously with it, to rotate. Under the action of synchronous belt 15, pulley 13 rotates synchronously. The rotation of pulley 13 drives hollow shaft 24 and suction cup 9 connected to hollow shaft 24 to rotate.

[0028] Among them, such as Figures 1 to 5 As shown, a column 32 is fixedly connected to the outer side of the sliding frame 8. The upper end of the column 32 is higher than the upper end of the main body 1. A plug is fixedly connected to the upper end of the column 32. The plug is electrically connected to the electrical components inside the main body 1. By setting the plug higher than the height of the main body 1 and inserting the plug into a socket at a higher position, the power supply plug of the disinfection mechanism is not interfered with when it is in motion. Preferably, the plug can also be connected in other ways, such as by hinged a bent connecting rod on the column 32. The length of the connecting rod is greater than the shortest distance between the main body 1 and the suction cup 9 when it is in motion, so that the plug can be inserted into a socket at a lower position.

[0029] Among them, such as Figures 2 to 5As shown, the sliding frame 8 is provided with an air chamber 21 above the hollow shaft 24. A sealing ring 241 is fixed to the upper end of the hollow shaft 24 to seal the connection between the air chamber 21 and the hollow shaft 24. The suction cup 9 is provided with a vertical shaft hole 901, in which the hollow shaft 24 is slidably inserted. A sealing ring 242 is fixed to the lower side of the hollow shaft 24 to seal the connection between the hollow shaft 24 and the shaft hole 901. The air chamber 21 is connected to the air pipe 23. An air pump is also provided inside the main body 1. The other end of the air pipe 23 is fixed to the air pump. When the suction cup 9 is adsorbed on the ground, the air pump makes the air chamber 21 negative pressure, which in turn makes the suction cup 9 connected to it negative pressure, so that the suction cup 9 can be firmly adsorbed on the ceramic plate on the ground. Specifically, the air pipe 23 between the main body 1 and the sliding frame 8 can be set in a spiral shape to accommodate the sliding of the sliding frame 8.

[0030] Among them, such as Figures 4 to 5 As shown, a rotating body 25 is rotatably connected to the outer end of the sliding frame 8. The upper end of the suction cup 9 is threaded into the rotating body 25. In the initial state, the suction cup 9 is spaced from the ground, facilitating the movement of the entire disinfection device. A resettable locking block 26 is slidably connected to the side of the suction cup 9, which can be reset using a reset spring. A locking block 27 is slidably connected in the sliding frame 8, and the sliding frame 8 also has a drive reciprocating mechanism for driving the reciprocating movement of the locking block 27. A locking slot 251 is provided on the side of the rotating body 25, which corresponds to the locking block 26 and the locking block 27. Both the locking block 26 and the locking block 27 are permanent magnets and repel each other. In the initial state, the suction cup 9 is spaced from the ground, and the locking block 27 is engaged in the locking slot 251. Rotation of body 25 is restricted. The second reducer 20 is started to drive the central gear to rotate, which in turn drives the suction cup 9 to rotate. As the suction cup 9 rotates in the rotating body 25, it moves downward until the suction cup 9 is in contact with the ground. At this time, the first locking block 26 is facing the locking slot 251, and the first locking block 26 is repelled and retracted in the suction cup 9 by the second locking block 27. The reciprocating drive mechanism is started to drive the second locking block 27 to disengage from the locking slot 251, and the first locking block 26 is locked into the locking slot 251 by the action of the return spring. At this time, rotation between the rotating body 25 and the suction cup 9 is restricted. The rotating body 25 is rotatably connected to the sliding frame 8. When the suction cup 9 is attached to the ground, the sliding frame 8 is driven to rotate around the rotating body 25 through the pulley 13, which in turn drives the air disinfection device to rotate around the suction cup 9 to expand the disinfection range.

[0031] The reciprocating drive mechanism includes a servo motor 31, which is fixedly installed in the sliding frame 8. A drive gear 30 is fixedly connected to the output shaft of the servo motor 31. A driven gear 29, which meshes with the drive gear 30, is rotatably connected in the sliding frame 8. A coaxially rotating screw 28 is fixedly connected to the driven gear 29. A screw hole 271 is provided in the locking block 27, and the screw 28 is threaded into the screw hole 271. The servo motor 31 drives the drive gear 30 and the driven gear 29 to rotate, which in turn drives the screw 28 to rotate, thereby driving the locking block 27 to reciprocate.

[0032] Among them, such as Figures 4 to 5 As shown, a pressure sensor 22 is fixedly connected inside the air chamber 21. The pressure sensor 22 is used to detect the pressure inside the air chamber 21. When the suction cup 9 is attached to the ground and the air sterilization device rotates around the suction cup 9, the air chamber 21 is in a negative pressure state. When the air pressure inside the air chamber 21 suddenly changes to normal pressure, the control center should stop the operation of reducer 10 and reducer 20, and use the air pump to change the air chamber 21 back to negative pressure, that is, to firmly attach the suction cup 9 back to the ceramic floor. Then, reducer 10 and reducer 20 are restarted. Through the monitoring of the pressure sensor 22, the entire air sterilization mechanism is prevented from deviating from its original position during operation. When the air chamber 21 repeatedly changes to normal pressure, the operation of the air pump needs to be stopped, an alarm needs to be issued to the user, and the reason why the suction cup 9 cannot be attached to the ground needs to be checked.

[0033] Among them, such as Figures 1 to 5 As shown, pulley 13, pulley 24, and pulley 38 have the same radius as the central gear, meaning their linear velocities are all the same. When the reducer 20 moves, the transmission ratio remains 1:1 during the transmission from pulley 38 to pulley 13, which facilitates the calculation of the rotation angle of pulley 13.

[0034] Let n1 be the number of rotations of the output shaft of reducer 10, and P be the pitch of screw 11. Then the distance S that the sliding frame 8 moves is S = n1 * P. Let n2 be the number of rotations of the output shaft of reducer 20, and R be the radius of pulley 18. Then the number of rotations of pulley 18 is also n2. The number of rotations of the main body 1 around the suction cup 9 is the same as the number of rotations of the output shaft of reducer 20 when reducer 10 is not working and reducer 20 is working. At this time, the disinfection mechanism can disinfect the air outside the circumferential range. When reducer 10 and reducer 20 work at the same time, for example, when the main body 1 rotates counterclockwise around the suction cup 9 and the sliding frame 8 moves outward from the main body 1 at the same time, the outward movement of the sliding frame 8 cancels out part of the rotation angle of the central gear. Let the angle of rotation of the central gear that is canceled out be... Let α be the degree, and the unit be "°". Then S = 2π*R*α / 360. The angle that is canceled out is α = 180*n1*P / π*R. Assuming that the angular velocity of the output shafts of reducer 10 and reducer 20 is the same at this time, when reducer 20 rotates n2 times, the angle of rotation of the main body 1 is n2-α. Through the above method, it can be calculated that by controlling the angular velocity of reducer 10 and reducer 20, rotating clockwise or counterclockwise, the main body 1 can be controlled to make an elliptical or quasi-elliptical trajectory around the suction cup 9 as the center, thereby achieving the maximum air purification effect in different indoor and spatial terrains. Preferably, when the suction cup 9 is attached to the wall, the main body 1 can be controlled to make a reciprocating motion of a semi-circular trajectory or a semi-elliptical trajectory, thereby avoiding the problem that the air disinfection mechanism adsorbs air near the wall and the actual purification efficiency is not high.

[0035] Among them, such as Figure 2 As shown, the omnidirectional ball assembly 7 includes a support base 701 with a hemispherical recess for holding a ball 702. A ball bearing 703 is provided between the ball bearing 702 and the support base 701. A cover 704 covers the support base 701, which restricts the ball bearing 703 and the ball bearing 702 to the support base 701. The ball bearing 702 is in contact with the ground, and the cover 704 is fixed to the bottom of the base 6. The cooperation between the ball bearing 702 and the ball bearing 703 facilitates the omnidirectional movement of the main body 1.

[0036] The present invention also provides an air disinfection method, comprising the following steps: S1: Move the device to a suitable indoor location and set the corresponding mode to control the device's operating trajectory and range of motion; S2: Start reducer 10 to drive the sliding frame 8 to move outward. At the same time, reducer 20 can be started to move together with the central gear on the sliding frame 8 to prevent the suction cup 9 from rotating and directly contacting the ground. Stop reducer 10 when the suction cup 9 on the sliding frame 8 moves to the designated position. Drive reducer 20 to drive the suction cup 9 to rotate, and then drive the suction cup 9 to move downward and contact the ground. Then, drive the reciprocating mechanism to drive the locking block 27 to disengage from the locking slot 251, and the locking block 1 26 to engage with the locking slot 251, completing the limit between the suction cup 9 and the rotating body 25. Start the air pump to make the air chamber 21 negative pressure, so that the suction cup 9 can be firmly attached to the ceramic plate on the ground. S3: When set to mode one, the main body 1 moves in a circular trajectory around the suction cup 9. At this time, the reducer 20 works and the reducer 10 does not work. This working mode is suitable for indoor open spaces that are relatively square, and it purifies the air in the circumferential range. S4: When set to mode two, the main body 1 moves in an elliptical trajectory around the suction cup 9. At this time, both reducer 10 and reducer 20 are working. By coordinating the changes in direction and deceleration of reducer 10 and reducer 20, the main body 1 moves in an elliptical or quasi-elliptical trajectory. This working mode is suitable for purifying the air in an elliptical area when the indoor space is relatively long and narrow. S5: When set to mode three, the main body 1 reciprocates around the suction cup 9 in a semi-circular trajectory. At this time, only the reducer 20 works, and the reducer 10 does not work. This working mode is suitable for purifying the air in the semi-circular area near the wall when the main body 1 is placed against the wall. S6: When set to mode four, the main body 1 reciprocates around the suction cup 9 in a semi-elliptical trajectory. At this time, reducer 10 and reducer 20 work together. This working mode is suitable for purifying the air in the semi-elliptical range of the wall position when the main body 1 is placed against the wall. S7: Use air pressure sensor 22 to monitor the pressure of air chamber 21. When the pressure of air chamber 21 changes from negative pressure to normal pressure, stop the operation of reducer 10 and reducer 20, restart the air pump to attach suction cup 9 to the ground, and then restart reducer 10 and reducer 20. When air chamber 21 changes from negative pressure to normal pressure multiple times, completely stop the operation of reducer 10 and reducer 20, and issue an alarm to the user to remind the user to check for suction cup 9 adsorption failure.

Claims

1. An air disinfection device, comprising a hollow main body (1), an air inlet filter (2) fixedly connected to the front side of the main body (1), and an air outlet filter (5) provided on the rear side of the main body (1), a fan assembly (4) fixedly installed inside the main body (1), and a plasma generator (3) fixedly installed in the main body (1) between the fan assembly (4) and the air inlet filter (2), characterized in that: A base (6) is fixedly connected to the bottom of the main body (1). A ball joint assembly (7) is fixedly installed below the base (6). A sliding frame (8) is slidably connected in the base (6). The sliding frame (8) extends through the base (6) and has a suction cup (9) at the outer end. A drive rotation mechanism for driving the suction cup (9) to rotate is provided in the base (6). When the suction cup (9) is attached to the ground, the drive rotation mechanism is activated to drive the main body (1) to rotate around the suction cup (9). A drive movement mechanism for driving the sliding frame (8) to slide is also provided in the base (6). A column (32) is fixedly connected to the outer part of the sliding frame (8). The upper end of the column (32) is higher than the upper end of the main body (1). A plug is fixedly connected to the upper end of the column (32).

2. The air disinfection device according to claim 1, characterized in that: The driving and moving mechanism includes a speed reducer (10), the speed reducer (10) is fixedly installed in the base (6), and the base (6) is also provided with a slide rail (101). The sliding frame (8) is slidably connected in the slide rail (101). The output shaft of the speed reducer (10) is fixedly connected with a screw rod (11), and the sliding frame (8) is provided with a screw hole (12) threadedly connected to it.

3. An air disinfection device according to claim 2, characterized in that: The driving rotation mechanism includes a second reducer (20), and the second reducer (20) is also fixedly installed in the base (6). The output shaft of the second reducer (20) is vertically upward, and a third pulley (18) is fixedly connected to the output shaft of the second reducer (20). At the same time, three other identical third pulleys (18) are rotatably connected in the base (6). The four third pulleys (18) form a rectangle. The four third pulleys (18) are all sleeved on the same second synchronous belt (19). The two ends of the sliding frame (8) are respectively rotatably connected to a first pulley (13) and a second pulley (14). The same synchronous belt (15) is sleeved on pulley one (13) and pulley two (14); a concentric shaft (16) is fixed in pulley one (13) located on the inner side. The concentric shaft (16) extends upward through the sliding frame (8), and a concentric gear (17) is fixed in the upward-extending part of the concentric shaft (16). The concentric gear (17) meshes with the synchronous belt two (19); a hollow shaft (24) is fixed in pulley one (13). The upper end of the hollow shaft (24) is rotatably connected to the inner wall of the sliding frame (8), and the lower side of the hollow shaft (24) is slidably inserted into the suction cup (9).

4. An air disinfection device according to claim 3, characterized in that: The sliding frame (8) is provided with an air chamber (21) above the hollow shaft (24). A sealing ring (241) is fixedly connected to the upper end of the hollow shaft (24). A vertical shaft hole (901) is provided in the suction cup (9). The hollow shaft (24) is slidably inserted into the shaft hole (901), and a sealing ring (242) is fixedly connected to the lower side of the hollow shaft (24). The air chamber (21) is connected to a vent pipe (23). An air pump is also provided in the main body (1). The other end of the vent pipe (23) is fixedly connected to the air pump.

5. An air disinfection device according to claim 4, characterized in that: The sliding frame (8) is rotatably connected to a rotating body (25) at its outer end. The upper end of the suction cup (9) is threaded into the rotating body (25). A resettable locking block (26) is slidably connected to the side of the suction cup (9). A locking block (27) is slidably connected in the sliding frame (8). The sliding frame (8) is also provided with a reciprocating drive mechanism for moving the locking block (27). A locking slot (251) is provided on the side of the rotating body (25). The locking slot (251) is correspondingly set with the locking block (26) and the locking block (27). Both block 1 (26) and block 2 (27) are permanent magnets and they repel each other. In the initial state, the suction cup (9) is separated from the ground and block 2 (27) is inserted into the slot (251). At this time, the rotating body (25) is restricted from rotating. When block 1 (26), block 2 (27) and slot (251) are opposite each other, the drive reciprocating mechanism is activated to drive block 2 (27) to disengage from the slot (251). Block 1 (26) is inserted into the slot (251) under the action of the reset spring. At this time, the rotating body (25) and the suction cup (9) are restricted from rotating.

6. An air disinfection device according to claim 5, characterized in that: The reciprocating drive mechanism includes a servo motor (31), the servo motor (31) is fixedly installed in the sliding frame (8), the output shaft of the servo motor (31) is fixedly connected to a drive gear (30), the sliding frame (8) is rotatably connected to a driven gear (29) that meshes with the drive gear (30), the driven gear (29) is fixedly connected to a coaxially rotating screw (28), the second locking block (27) is provided with a screw hole (271), and the second screw (28) is threadedly connected to the screw hole (271).

7. An air disinfection device according to claim 5, characterized in that: A pressure sensor (22) is fixedly connected inside the air chamber (21), and the pressure sensor (22) is used to detect the pressure inside the air chamber (21).

8. An air disinfection device according to claim 3, characterized in that: The first pulley (13), the second pulley (14), and the third pulley (18) have the same radius as the central gear, meaning that their linear speeds are all the same.

9. An air disinfection device according to claim 1, characterized in that: The universal ball assembly (7) includes a support base (701) with a hemispherical recess for placing a ball (702). A ball bearing (703) is provided between the ball (702) and the support base (701). The support base (701) is also covered by a cover (704), which is fixed to the bottom of the base (6).

10. An air disinfection method, comprising the air disinfection device according to any one of claims 1-9, characterized in that, Includes the following steps: S1: Move the device to a suitable indoor location and set the corresponding mode to control the device's operating trajectory and range of motion; S2: Start the reducer (10) to drive the sliding frame (8) to move outward to the designated position, stop the reducer (10), drive the reducer (20) to drive the suction cup (9) to rotate, drive the suction cup (9) to move downward to contact the ground, and then drive the reciprocating mechanism to drive the second block (27) to disengage from the slot (251), and the first block (26) to engage with the slot (251), completing the limit between the suction cup (9) and the rotating body (25), start the air pump to make the air chamber (21) become negative pressure, and then make the suction cup (9) firmly adhere to the ceramic plate on the ground; S3: When set to mode one, the main body (1) moves in a circular trajectory around the suction cup (9). At this time, the second reducer (20) works and the first reducer (10) does not work. The disinfection device purifies the air in the circumferential range. S4: When set to mode two, the main body (1) moves in an elliptical trajectory around the suction cup (9). At this time, both reducer one (10) and reducer two (20) are working, and the disinfection device purifies the air in the elliptical range. S5: When set to mode three, the main body (1) moves back and forth in a semi-circular trajectory around the suction cup (9). At this time, only the second reducer (20) works, and the first reducer (10) does not work. In this working mode, when the main body (1) is placed against the wall, the air in the semi-circular range against the wall is purified. S6: When set to mode four, the main body (1) moves back and forth around the suction cup (9) in a semi-elliptical trajectory. At this time, reducer one (10) and reducer two (20) work together. In this working mode, when the main body (1) is placed against the wall, the air in the semi-elliptical range against the wall is purified. S7: Use the air pressure sensor (22) to monitor the pressure of the air chamber (21). When the pressure of the air chamber (21) changes from negative pressure to normal pressure, stop the operation of reducer 1 (10) and reducer 2 (20), restart the air pump to attach the suction cup (9) to the ground, and then restart reducer 1 (10) and reducer 2 (20). When the air chamber (21) changes from negative pressure to normal pressure multiple times, completely stop the operation of reducer 1 (10) and reducer 2 (20) and issue an alarm to the user to remind the user to check the suction cup (9) adsorption failure.

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