A circulating air purification and sterilization device

Abstract

The present invention relates to the field of air purification technology, and in particular to a circulating air purification and sterilization device, comprising a main body, the main body is provided with a treatment tank, an air passage chamber and a sterilization chamber, the air passage chamber is connected to the treatment tank, the main body is rotatably connected to a main shaft through a bearing, the bottom wall of the treatment tank is rotatably connected to a rotating seat through a bearing, the bottom wall of the treatment tank is fixedly connected to a column, the column is a hollow structure and its top wall is fixedly connected to a first tube, the side wall of the column is provided with a plurality of through holes, the column is slidably connected to a filter element; a driving mechanism is arranged in the main body, the driving mechanism is composed of a pneumatic component and a sensing control component, and is used to drive the entire device. The advantage is that the device of the present invention can automatically monitor the use of the filter element, automatically clean it when it is blocked, ensure the normal use of the filter element, and increase the use time of the filter element, avoid frequent replacement, and at the same time, the sterilization effect is more thorough.

Description

Technical Field

[0001] The invention relates to the technical field of air purification, and in particular to a circulating air purification and sterilization device. Background Art

[0002] With the continuous development of science and technology and economy, our living standards are constantly improving, and environmental pollution has a certain impact on the air in our living environment, which means that we need to use devices to purify and sterilize the air in our lives. Not only in daily life, but also in the medical field, because hospitals have patients carrying viruses and bacteria for a long time, they also need to use devices to purify and sterilize the air, remove particulate matter, odors and harmful gases in the air, so as to ensure a good and comfortable indoor environment and avoid harmful substances in the air affecting our health.

[0003] In the prior art, during the operation of an air purification and sterilization device, a filter element is generally required to filter dust and other substances in the air. However, during the use of the device, the user cannot promptly understand the use of the filter element, and thus cannot promptly clean the filter element, resulting in a reduction in the purification capacity of the device. In addition, the filter element has no self-cleaning ability, and the filter element needs to be replaced frequently during use. Since the machine needs to be opened to replace the filter element, the replacement of the filter element is also relatively cumbersome. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a circulating air purification and sterilization device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A circulating air purification and sterilization device, comprising a main body, the main body is provided with a processing tank, an air passage cavity and a sterilization cavity, the air passage cavity is communicated with the processing tank, the main body is rotatably connected with a main shaft through a bearing, the inner bottom wall of the processing tank is rotatably connected with a rotating seat through a bearing, the inner bottom wall of the processing tank is fixedly connected with a column, the column is a hollow structure and a first tube is fixedly connected with the top wall thereof, a plurality of through holes are provided on the side wall of the column, and a filter element is slidably connected with the column; A driving mechanism is arranged in the main body, and the driving mechanism is composed of a pneumatic component and a sensing control component, and is used to drive the entire device; A filter element cleaning mechanism is provided in the treatment tank, and the filter element cleaning mechanism consists of a knocking component and a rotating brush component, and is used to clean the filter element; The main body is provided with a reverse cleaning mechanism, which is used to reverse clean the filter element, and clean and collect the dust on the filter element and the dust in the processing tank; A sterilization mechanism is arranged in the sterilization chamber, which is used to sterilize the circulating air.

[0006] Furthermore, the pneumatic component includes an air pump, which is fixedly connected to the main body, one end of the air pump is located in the sterilization chamber, and the other end is located outside the main body. A second tube is fixedly connected to the main body, and the second tube connects the sterilization chamber with the air chamber. One end of the main shaft extends into the processing tank and is fixedly connected to a gear, and the other end extends into the air chamber. A plurality of blades are fixedly connected to the side wall of a section of the main shaft located in the air chamber.

[0007] Furthermore, the sensing control component includes a sliding groove, which is opened on the inner wall of the processing groove. The processing groove is slidingly connected to a slider through the sliding groove sealing. A plurality of return springs are fixedly connected between the slider and the inner top wall of the sliding groove. The cross-sections of the slider and the sliding groove are both annular. The inner wall of the slider is rotatably connected to a driving ring through a bearing. A gear ring is fixedly connected to the lower surface of the driving ring, and the gear ring is meshed with the gear.

[0008] Furthermore, the rotating brush assembly includes a plurality of positioning blocks, the cross section of the positioning blocks is L-shaped, the positioning blocks are fixedly connected to the inner side wall of the rotating seat, and the side wall of the positioning block close to the filter element is provided with bristles.

[0009] Furthermore, the knocking assembly includes multiple groups of fixed plates, which are fixedly connected to the upper surface of the rotating seat, and each two of the fixed plates form a group. A rotating rod is fixedly connected between each group of fixed plates. The rotating rod is rotatably connected to a rotating block through a bearing, and a torsion spring is fixedly connected between the rotating block and the fixed plate. The rotating block is provided with a groove, and a rotating wheel is rotatably connected between the top wall and the bottom wall of the groove through a bearing. A rubber block is fixedly embedded in the rotating block, and a plurality of protrusions are fixedly connected to the inner side wall of the processing tank.

[0010] Furthermore, the anti-cleaning mechanism includes a storage tank, which is opened in the main body, and the main shaft passes through the storage tank. A plurality of cleaning blocks are fixedly connected to the side wall of a section of the main shaft located in the storage tank, and bristles are provided on the side wall of the cleaning block away from the main shaft. A filter is sealingly and slidably connected in the storage tank, and a plurality of third tubes are fixedly connected through the main body, and the third tubes connect the processing tank with the storage tank. A second solenoid valve is provided in the third tube, and a first solenoid valve is provided in the first tube. A delay switch is fixedly embedded in the inner side wall of the processing tank, and the delay switch is connected to the PLC control circuit. The first solenoid valve, the second solenoid valve, the air pump and the power supply are electrically connected through wires.

[0011] Furthermore, the sterilization mechanism includes a plurality of guide plates, which are respectively fixedly connected to two opposite inner side walls of the sterilization chamber, and a plurality of ultraviolet lamp tubes are fixedly connected to the top wall and the bottom wall of the sterilization chamber.

[0012] Furthermore, a plurality of operating blocks are fixedly connected to the upper surface of the filter element, and a sealing rubber ring is glued to the side wall of the filter element.

[0013] Furthermore, the cross section of the column is in the shape of a U-shaped letter "U".

[0014] Furthermore, the side walls of the rotating seat on the side close to the driving ring are glued with rubber pads.

[0015] The present invention has the following advantages: 1. During the use of the device, when the filter element is blocked to a certain extent, the air pump will cause the drive ring to slide upward during the air circulation process, and the pressure between the drive ring and the rotating seat will increase, causing the rotating seat to rotate. The filter element is knocked by the knocking component, and the filter screen is cleaned by cooperating with the rotating brush component, thus avoiding the blockage of the filter element affecting the air purification effect; 2. The device automatically monitors the filter element usage status during use, without manual inspection, making the device more automated; 3. During the air circulation process, the blades drive the main shaft to rotate, converting part of the kinetic energy of the air flow into the kinetic energy of the main shaft rotation, so that the air speed decreases after passing through the blades. With the setting of the guide plate, the air stays in the sterilization chamber for a longer time, thus achieving a more thorough sterilization effect; 4. While reducing the air circulation speed to improve the sterilization effect, part of the kinetic energy lost by reducing the speed is used to drive the main shaft to rotate, rather than being directly wasted, making the device more energy-efficient; 5. After the knocking assembly and the rotating brush assembly clean the filter element, the delay switch is triggered to change the power supply direction, so that the air pump changes from exhausting air to pumping air. The dust and impurities cleaned in the processing tank enter the storage tank through the third pipe through the pumping air of the air pump. The filter element is further cleaned by pumping air. At the same time, the cleaned dust and impurities are pumped from the processing tank into the storage tank for storage, so as to avoid the dust and impurities in the processing tank from continuing to block the filter element, thereby ensuring the long-term use of the filter element and reducing the replacement frequency; 6. The treatment tank is open to the outside. When replacing the filter element, you only need to remove the old filter element and insert the new one without opening the device, making the replacement of the filter element more convenient; 7. When the main shaft drives the gear to rotate, it will also drive the rotating block to rotate, cleaning the filter to prevent the filter from being blocked and affecting the smooth entry of dust and impurities into the storage tank; 8. The entire device only needs one air pump to drive, which makes the structure of the device more compact, and does not require manual control, and its degree of automation is also higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic structural diagram of a circulating air purification and sterilization device proposed by the present invention; Figure 2 This is a schematic diagram of the internal structure of a circulating air purification and sterilization device proposed by the present invention; Figure 3 for Figure 2 A in the enlarged view; Figure 4 This is a schematic diagram of the internal structure of a treatment tank in a circulating air purification and sterilization device proposed by the present invention; Figure 5 for Figure 4 The enlarged view of point B in the figure; Figure 6 This is a schematic diagram of the internal structure of a processing tank in a circulating air purification and sterilization device proposed by the present invention under a cross-section; Figure 7 This is a schematic diagram of the internal structure of another section of a treatment tank in a circulating air purification and sterilization device proposed by the present invention; Figure 8 A schematic diagram of the internal structure of a storage tank in a circulating air purification and sterilization device proposed by the present invention; Fig. 9 A schematic diagram of the internal structure of a gas passage cavity in a circulating air purification and sterilization device proposed by the present invention; Fig.10 This is a circuit connection schematic diagram of a circulating air purification and sterilization device proposed by the present invention.

[0017] In the figure: 1. main body; 2. processing tank; 3. rotating seat; 4. column; 5. first tube; 6. through hole; 7. filter element; 8. positioning block; 9. sliding groove; 10. slider; 11. reset spring; 12. driving ring; 13. gear ring; 14. main shaft; 15. gear; 16. air chamber; 17. sterilization chamber; 18. second tube; 19. air pump; 20. fixing plate; 21. rotating rod; 22. rotating block; 23. torsion spring; 24. rubber block; 25. groove; 26. rotating wheel; 27. bump; 28. delay switch; 29. ​​first solenoid valve; 30. third tube; 31. second solenoid valve; 32. storage tank; 33. filter screen; 34. cleaning block; 35. blade; 36. guide plate; 37. ultraviolet lamp; 38. operation block. DETAILED DESCRIPTION

[0018] Reference Figure 1-10, a circulating air purification and sterilization device, including a main body 1, the main body 1 is provided with a processing tank 2, an air passage cavity 16 and a sterilization cavity 17, the air passage cavity 16 is connected to the processing tank 2, the main body 1 is rotatably connected with a main shaft 14 through a bearing, the inner bottom wall of the processing tank 2 is rotatably connected with a rotating seat 3 through a bearing, the inner bottom wall of the processing tank 2 is fixedly connected with a column 4, the column 4 is a hollow structure and its top wall is fixedly connected with a first tube 5, the side wall of the column 4 is provided with a plurality of through holes 6, the column 4 is slidably connected with a filter element 7, the filter element 7 is slidably connected with the outer wall of the column 4, the filter element 7 is made of plastic material and has a plurality of holes, and filter paper is arranged in the holes, which is a prior art and will not be described in detail here; A driving mechanism is arranged in the main body 1, and the driving mechanism is composed of a pneumatic component and a sensing control component, which is used to drive the entire device; A filter element cleaning mechanism is provided in the processing tank 2, and the filter element cleaning mechanism is composed of a knocking component and a rotating brush component, which is used to clean the filter element 7; The main body 1 is provided with a reverse cleaning mechanism, which is used to reverse clean the filter element 7, and clean and collect the dust on the filter element 7 and the dust in the processing tank 2; A sterilization mechanism is provided in the sterilization chamber 17 for sterilizing the circulating air.

[0019] The pneumatic component includes an air pump 19, which is fixedly connected to the main body 1. One end of the air pump 19 is located in the sterilization chamber 17, and the other end is located outside the main body 1. The main body 1 is fixedly connected with a second tube 18, which connects the sterilization chamber 17 with the air chamber 16. One end of the main shaft 14 extends into the processing tank 2 and is fixedly connected with a gear 15, and the other end extends into the air chamber 16. The side wall of a section of the main shaft 14 located in the air chamber 16 is fixedly connected with a plurality of blades 35. When air flows through the blades 35, the impact force on the blades 35 causes the blades 35 to rotate, thereby driving the main shaft 14 to rotate, and converting part of the kinetic energy of the air flow into kinetic energy of the rotation of the main shaft 14.

[0020] The sensing control component includes a sliding groove 9, which is provided on the inner wall of the processing tank 2. The processing tank 2 is sealed and slidably connected with a slider 10 through the sliding groove 9. A plurality of return springs 11 are fixedly connected between the slider 10 and the inner top wall of the sliding groove 9. The cross sections of the slider 10 and the sliding groove 9 are both annular. The inner wall of the slider 10 is rotatably connected with a drive ring 12 through a bearing. The main body 1 is provided with a hole (not shown in the figure) so that the bottom of the processing tank 2 is connected with the outside world to ensure that the sealed sliding drive ring 12 can slide up and down freely. The inner wall of the drive ring 12 has a certain inclination, and the outer wall of the rotating seat 3 also has a certain inclination (such as Figure 3As shown in the figure, the inclination degrees of the two are consistent, so that when the driving ring 12 slides up and the inclined surface of the driving ring 12 abuts against the inclined surface of the rotating seat 3, the driving ring 12 can drive the rotating seat 3 to rotate through friction. The lower surface of the driving ring 12 is fixedly connected with a gear ring 13, and the gear ring 13 is meshed with the gear 15. The side walls of the rotating seat 3 on the side close to the driving ring 12 are glued with rubber pads. The rubber pads between the two ensure the sealing of the gap between the two on the one hand, and increase the friction between the two on the other hand, so that when the driving ring 12 slides up and applies pressure to the rotating seat 3, the friction between the two increases, so that the driving ring 12 can drive the rotating seat 3 to rotate. It should be noted here that a damping gasket is provided at the rotating connection between the rotating seat 3 and the main body 1, so that there is a certain friction between the rotating seat 3 and the main body 1 during the rotation. The existence of this friction force means that when the drive ring 12 does not apply pressure to the rotating seat 3, the rotation of the drive ring 12 will not drive the rotating seat 3 to rotate. After the filter element 7 has been used for a long time and becomes clogged to a certain extent, the resistance of air passing through the filter element 7 increases. While the air pump 19 keeps pumping air, the pressure above the drive ring 12 decreases, causing the drive ring 12 to slide up. When the drive ring 12 slides up, it will contact the rotating seat 3 and apply a certain pressure to it. When the blockage reaches a certain degree, the pressure between the drive ring 12 and the rotating seat 3 makes the drive ring 12 sufficient to drive the rotating seat 3 to rotate. At this time, the rotating seat 3 rotates. When the device is used, the use of the filter element 7 is automatically monitored, and when the blockage reaches a certain degree, the cleaning is automatically started, thereby ensuring the normal use of the filter element 7 and greatly improving the degree of automation of the device.

[0021] The rotating brush assembly includes a plurality of positioning blocks 8, the cross-section of the positioning block 8 is L-shaped, the positioning block 8 is fixedly connected to the inner wall of the rotating seat 3, and the side wall of the positioning block 8 close to the filter element 7 is provided with bristles. The L-shaped positioning block 8 can limit the filter element 7 to a certain extent, ensure the correct installation of the filter element 7, and prevent the filter element 7 from sliding excessively into the processing tank 2. The bristles on the side wall can clean the surface of the filter element 7 to a certain extent during the rotation of the rotating seat 3.

[0022] The knocking assembly includes a plurality of fixed plates 20, the fixed plates 20 are fixedly connected to the upper surface of the rotating seat 3, and each two fixed plates 20 form a group. A rotating rod 21 is fixedly connected between each group of fixed plates 20. The rotating rod 21 is rotatably connected to a rotating block 22 through a bearing. A torsion spring 23 is fixedly connected between the rotating block 22 and the fixed plate 20. The rotating block 22 is provided with a groove 25. A rotating wheel 26 is rotatably connected between the top wall and the bottom wall of the groove 25 through a bearing. A rubber block 24 is fixedly embedded in the rotating block 22. A plurality of protrusions 27 are fixedly connected to the inner wall of the processing tank 2. The shape of the protrusion 27 is as follows: Figure 5As shown, its cross-sectional shape is similar to a right triangle with an arc-shaped hypotenuse, so that when the rotating wheel 26 rotates with the rotating seat 3, the rubber block 24 rotates around the rotating rod 21 through contact with the protrusion 27, and when the rotating wheel 26 is separated from the protrusion 27, the rubber block 24 rebounds instantly under the elastic force of the torsion spring 23, and the rotating seat 3 rotates to drive the rotating block 22 to rotate, so that the rotating wheel 26 rotates with it. During the rotation of the rotating wheel 26, it contacts the protrusion 27, so that the rotating wheel 26 gradually moves away from the inner wall of the processing tank 2, and the rotating block 22 It rotates around the rotating rod 21 and at the same time rotates the torsion spring 23 to store force. When the rotating wheel 26 separates from the protrusion 27, the elastic force stored in the torsion spring 23 is released instantly, causing the rotating block 22 to reverse instantly, thereby causing the rubber block 24 to hit the filter element 7, causing the filter element 7 to vibrate to a certain extent. In conjunction with the positioning block 8, the filter element 7 is cleaned, and the dust and impurities on its surface are cleaned and fall on the bottom wall of the processing tank 2. Through the setting of the rotating brush assembly and the knocking assembly, the rotating seat 3 is rotated to perform a certain self-cleaning on the filter element 7 to ensure the normal use of the filter element 7.

[0023] The anti-cleaning mechanism includes a storage tank 32, which is opened in the main body 1, and the main shaft 14 passes through the storage tank 32. The side wall of the main shaft 14 located in the storage tank 32 is fixedly connected with a plurality of cleaning blocks 34, and the side wall of the cleaning block 34 away from the main shaft 14 is provided with bristles. The storage tank 32 is sealed and slidably connected with a filter screen 33, and the sealed and slidable filter screen 33 can be freely taken out, which is convenient for cleaning the storage tank 32 and the filter screen 33. The main body 1 is fixedly connected with a plurality of third tubes 30, which connect the processing tank 2 with the storage tank 32, and the third tube 30 is provided in the third tube 30. There is a second solenoid valve 31, a first solenoid valve 29 is arranged in the first tube 5, a delay switch 28 is fixedly embedded in the inner wall of the processing tank 2, and the delay switch 28 is connected to the PLC control circuit. After the delay switch 28 is pressed, the positive and negative directions of the power supply can be changed for a period of time, and then restored to normal. This is the prior art and will not be described in detail here. The first solenoid valve 29, the second solenoid valve 31, and the air pump 19 are electrically connected to the power supply through a wire. The first solenoid valve 29 and the second solenoid valve 31 are both normally closed solenoid valves, which are opened by power on. The circuit connection between the first solenoid valve 29, the second solenoid valve 31, the air pump 19 and the power supply is as shown in FIG. Fig.10As shown in the figure, after a diode is connected in series with the first solenoid valve 29 and the second solenoid valve 31 respectively and they are connected in parallel with each other, they are then connected in parallel with the air pump 19, and the directions of the two diodes are opposite. Therefore, when the power supply direction changes, the first solenoid valve 29 is de-energized and the second solenoid valve 31 is energized. Since the air pump 19 is a DC bidirectional air pump, changing the power supply direction can change its air pumping direction. When the runner 26 passes over the bump 27, the power supply changes the power supply direction. At this time, the first solenoid valve 29 is de-energized and closed, while the second solenoid valve 31 is energized and opened. At the same time, after the air pump 19 changes the power supply direction, the air pumping direction also changes. At this time, the air pump 19 pumps air into the sterilization chamber 17. The pumped air passes through the second pipe 18, the air passing chamber 16 and enters the treatment tank 2, and then passes through the filter element 7 to blow off the dust and impurities attached to the surface of the filter element 7. At this time, the third pipe 30 is in an open state, and the air then carries the cleaned dust and impurities into the storage tank 32 for storage, thereby further deeply cleaning the filter element 7, ensuring the long-term use of the filter element 7, avoiding frequent replacement of the filter element 7, and making the use of the device more convenient.

[0024] The setting of the bump 27 also plays a certain limiting role to limit the reverse rotation of the rotating seat 3 and prevent the runner 26 from triggering the delay switch 28 again during the backwashing process.

[0025] The sterilization mechanism includes a plurality of flow guiding plates 36. The flow guiding plates 36 are respectively fixedly connected to two opposite inner side walls of the sterilization chamber 17. A plurality of ultraviolet lamps 37 are fixedly connected to the inner top wall and the inner bottom wall of the sterilization chamber 17. The flow guiding plates 36 are arranged in a staggered manner (as Fig. 9 shown), thus forming a serpentine air flow channel. The ultraviolet lamps 37 are arranged on the channel through which the air flows, thereby increasing the residence time of the air in the sterilization chamber 17, enabling the ultraviolet rays emitted by the ultraviolet lamps 37 to come into more sufficient contact with the air, and thus achieving a more thorough sterilization effect.

[0026] A plurality of operating blocks 38 are fixedly connected to the upper surface of the filter element 7. The operating blocks 38 are in a shape of a double square frame (as Figure 2 shown). The filter element 7 can be conveniently pulled out of the treatment tank 2 through the operating blocks 38. Since the treatment tank 2 is in an open state, the replacement of the filter element 7 is made more convenient. A sealing rubber ring is glued to the side wall of the filter element 7, and the sealing rubber ring on the side wall of the filter element 7 ensures the sealing at the gaps between the filter element 7 and the main body 1 and the rotating seat 3.

[0027] The cross-section of the upright column 4 is in a shape of a double square frame (as Figure 6 shown). A through hole 6 is provided on each side wall of the upright column 4. The double square frame-shaped upright column 4 can play a certain role in restricting the filter element 7 and preventing the filter element 7 from rotating.

[0028] In the present invention, when the device is used, the air pump 19 is turned on, and the air pump 19 drives the air circulation, so that the air enters the filter element 7 from the first tube 5, and enters the treatment tank 2 through the filtration of the filter element 7, and enters the air cavity 16 from the treatment tank 2. When the air passes through the air cavity 16, it impacts the blade 35, causing the main shaft 14 to rotate the rod, and then the air enters the sterilization cavity 17 through the second tube 18, along the channel formed by the guide plate 36, through the sterilization cavity 17, and through the ultraviolet rays emitted by the ultraviolet lamp 37, sterilization is carried out, and then the purified and sterilized air is discharged to the outside, and the air circulates in this way to complete purification and sterilization.

[0029] During the use of the device, after long-term use, the filter element 7 becomes blocked to a certain extent. At this time, the resistance of air passing through the filter element 7 increases, and the air pump 19 keeps pumping air, which will reduce the pressure above the drive ring 12, thereby causing the drive ring 12 to slide up. When the drive ring 12 slides up, it will contact the rotating seat 3 and exert a certain pressure on it. After the blockage reaches a certain degree, the pressure between the drive ring 12 and the rotating seat 3 makes the drive ring 12 sufficient to drive the rotating seat 3 to rotate. At this time, the rotating seat 3 rotates, and the filter element 7 is cleaned to a certain extent by the bristles on the side wall of the positioning block 8.

[0030] At the same time, the rotation of the rotating seat 3 drives the rotating block 22 to rotate, so that the rotating wheel 26 rotates with it. During the rotation of the rotating wheel 26, it contacts the protrusion 27, so that the rotating wheel 26 gradually moves away from the inner wall of the processing tank 2, and the rotating block 22 rotates around the rotating rod 21, and the rotating torsion spring 23 is rotated to accumulate force. When the rotating wheel 26 is separated from the protrusion 27, the accumulated elastic force of the torsion spring 23 is instantly released, so that the rotating block 22 is instantly reversed, so that the rubber block 24 hits the filter element 7, causing the filter element 7 to produce a certain vibration, and cooperates with the positioning block 8 to clean the filter element 7, clean the dust and impurities on its surface, and let them fall on the inner bottom wall of the processing tank 2.

[0031] When the wheel 26 approaches the protrusion 27 and moves along the inner wall of the processing tank 2, it will also trigger the delay switch 28, so that when the wheel 26 passes over the protrusion 27, the power supply direction is changed. At this time, the first solenoid valve 29 is powered off and closed, and the second solenoid valve 31 is powered on and opened. At the same time, after the air pump 19 changes the power supply direction, the pumping direction also changes. At this time, the air pump 19 pumps air into the sterilization chamber 17, and the pumped air passes through the second tube 18 and the air chamber 16 into the processing tank 2, and then passes through the filter element 7 to blow off the dust and impurities attached to the surface of the filter element 7. At this time, the third tube 30 is in an open state, and the air carries the cleaned dust and impurities into the storage tank 32 for storage, thereby further deep cleaning the filter element 7.

[0032] After a certain period of time, the power supply direction of the power supply is restored, at this time the second solenoid valve 31 is powered off and closed, the first solenoid valve 29 is powered on and opened, the air pump 19 resumes the previous pumping direction, and the air continues to enter from the first tube 5 for circulating air purification and sterilization.

[0033] After the device has been used for a certain period of time, the filter 33 is taken out and cleaned, and the dust and impurities stored in the storage tank 32 are cleaned.

Claims

1. A circulating air purification and sterilization device, comprising a main body (1), characterized in that: The main body (1) is provided with a treatment tank (2), an air passage cavity (16) and a sterilization cavity (17); the air passage cavity (16) is in communication with the treatment tank (2); the main body (1) is rotatably connected to a main shaft (14) through a bearing; the inner bottom wall of the treatment tank (2) is rotatably connected to a rotating seat (3) through a bearing; the inner bottom wall of the treatment tank (2) is fixedly connected to a column (4); the column (4) is a hollow structure and a first tube (5) is fixedly connected to the top wall thereof; a plurality of through holes (6) are provided on the side wall of the column (4); a filter element (7) is slidably connected to the column (4); The main body (1) is provided with a driving mechanism, which is composed of a pneumatic component and a sensing control component and is used to drive the entire device; A filter element cleaning mechanism is provided in the processing tank (2), and the filter element cleaning mechanism is composed of a knocking component and a rotating brush component, and is used to clean the filter element (7); The main body (1) is provided with a reverse cleaning mechanism for reverse cleaning the filter element (7) to clean and collect dust on the filter element (7) and dust in the processing tank (2); A sterilization mechanism is provided in the sterilization chamber (17) and is used to sterilize the circulating air.

2. A circulating air purification and sterilization device according to claim 1, characterized in that: The pneumatic assembly comprises an air pump (19), the air pump (19) is fixedly connected to the main body (1), one end of the air pump (19) is located in the sterilization chamber (17), and the other end is located outside the main body (1), a second tube (18) is fixedly connected to the main body (1), and the second tube (18) connects the sterilization chamber (17) with the air passage chamber (16), one end of the main shaft (14) extends into the treatment tank (2) and is fixedly connected to a gear (15), and the other end extends into the air passage chamber (16), and a plurality of blades (35) are fixedly connected to the side wall of a section of the main shaft (14) located in the air passage chamber (16).

3. A circulating air purification and sterilization device according to claim 2, characterized in that: The sensing control component comprises a sliding groove (9), wherein the sliding groove (9) is formed on the inner side wall of the processing groove (2), and the processing groove (2) is sealed and slidably connected to a slider (10) via the sliding groove (9), and a plurality of return springs (11) are fixedly connected between the slider (10) and the inner top wall of the sliding groove (9), and the cross sections of the slider (10) and the sliding groove (9) are both annular, and the inner side wall of the slider (10) is rotatably connected to a drive ring (12) via a bearing, and a gear ring (13) is fixedly connected to the lower surface of the drive ring (12), and the gear ring (13) is meshed with a gear (15).

4. A circulating air purification and sterilization device according to claim 1, characterized in that: The rotating brush assembly comprises a plurality of positioning blocks (8), the cross section of the positioning blocks (8) being L-shaped, the positioning blocks (8) being fixedly connected to the inner side wall of the rotating seat (3), and the side wall of the positioning blocks (8) close to the filter element (7) is provided with brush bristles.

5. The circulating air purification and sterilization device according to claim 1, characterized in that: The knocking assembly comprises a plurality of groups of fixed plates (20), wherein the fixed plates (20) are fixedly connected to the upper surface of the rotating seat (3), and each two of the fixed plates (20) form a group. A rotating rod (21) is fixedly connected between each group of the fixed plates (20). The rotating rod (21) is rotatably connected to a rotating block (22) through a bearing. A torsion spring (23) is fixedly connected between the rotating block (22) and the fixed plate (20). The rotating block (22) is provided with a groove (25). A rotating wheel (26) is rotatably connected between the top wall and the bottom wall of the groove (25) through a bearing. A rubber block (24) is fixedly embedded in the rotating block (22). A plurality of protrusions (27) are fixedly connected to the inner side wall of the processing tank (2).

6. A circulating air purification and sterilization device according to claim 1, characterized in that: The anti-cleaning mechanism comprises a storage tank (32), the storage tank (32) being arranged in the main body (1), the main shaft (14) passing through the storage tank (32), a plurality of cleaning blocks (34) being fixedly connected to a side wall of a section of the main shaft (14) located in the storage tank (32), bristles being arranged on the side wall of the cleaning block (34) away from the main shaft (14), a filter screen (33) being sealingly and slidably connected in the storage tank (32), a plurality of third tubes (30) being fixedly connected passing through the main body (1), the third tubes (30) connecting the processing tank (2) with the storage tank (32), a second solenoid valve (31) being arranged in the third tube (30), a first solenoid valve (29) being arranged in the first tube (5), a time delay switch (28) being fixedly embedded in the inner side wall of the processing tank (2), the time delay switch (28) being connected to a PLC control circuit, and the first solenoid valve (29), the second solenoid valve (31), the air pump (19) and a power source being electrically connected via wires.

7. The circulating air purification and sterilization device according to claim 1, characterized in that: The sterilization mechanism comprises a plurality of guide plates (36), wherein the guide plates (36) are respectively fixedly connected to two opposite inner side walls of the sterilization chamber (17), and a plurality of ultraviolet lamp tubes (37) are fixedly connected to the inner top wall and the inner bottom wall of the sterilization chamber (17).

8. The circulating air purification and sterilization device according to claim 1, characterized in that: A plurality of operating blocks (38) are fixedly connected to the upper surface of the filter element (7), and a sealing rubber ring is glued to the side wall of the filter element (7).

9. The circulating air purification and sterilization device according to claim 1, characterized in that: The cross section of the upright post (4) is in the shape of a Chinese character “Yu”.

10. A circulating air purification and sterilization device according to claim 4, characterized in that: The side walls of the rotating seat (3) on the side close to the driving ring (12) are glued with rubber pads.

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