Air purification system for dust-free workshop

Abstract

The invention discloses a dust-free workshop air purification system, and relates to the technical field of air purification. The device comprises a gas box, a gas transmission assembly is fixedly connected to the side face of the gas box, a plurality of sliding rods are symmetrically and fixedly connected into the gas box, the device further comprises a ventilation replacement assembly, the ventilation replacement assembly comprises two gas blocking tables, the gas blocking tables are in sliding fit with the sliding rods, two ventilation openings are symmetrically formed in the gas box, and the gas blocking tables are matched with the ventilation openings. A first motor is fixedly connected to the side face of the air box, a first rotating shaft is fixedly connected to the output end of the first motor, and two special-shaped cams are symmetrically and fixedly connected to the circumferential side face of the first rotating shaft. And when the filtering at one air vent is blocked, air can be discharged from the other air vent, so that the situation that the air purification effect is reduced due to the fact that the filter plate is blocked by dust accumulation is avoided.

Description

Technical Field

[0001] This invention relates to the field of air purification technology, and more particularly to a cleanroom air purification system. Background Technology

[0002] The air purification system is the core guarantee of a cleanroom, specifically designed to efficiently remove suspended particulate matter, especially dust, from the air. This system typically employs a filtration mechanism to filter out fine dust particles within the cleanroom. The rigorously filtered clean air is continuously delivered into the cleanroom using a specific airflow organization and is constantly circulated and filtered, thereby controlling the dust concentration in the cleanroom air to an extremely low level, providing the necessary clean environment for the manufacturing of precision electronics, pharmaceuticals, and optical instruments.

[0003] When using existing equipment to filter air in a cleanroom, the existing technology usually involves setting up filter plates in the air circulation equipment. Air is driven into the equipment by the rotation of fan blades. When the dusty gas passes through the filter plates, the dust in the gas is blocked by the filter plates. The gas after the dust is separated is discharged into the cleanroom from the air outlet of the equipment. The fan blades continue to rotate, thus completing the continuous air cleaning of the cleanroom.

[0004] However, in actual use, during the air purification stage, the air must pass through a filter plate to separate the dust. When the air passes through the filter plate, the dust inside will adhere to the filter plate. As the device is used continuously, the dust at the air vent of the filter plate will gradually accumulate and become difficult to remove, causing blockage and thus reducing the air purification effect in the cleanroom. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies where dust gradually accumulates on the filter plates as the purification device is used continuously, causing blockage and reducing the air purification effect in the cleanroom. Therefore, this invention proposes a cleanroom air purification system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a cleanroom air purification system, including an air box, an air supply component fixedly connected to the side of the air box, several sliding rods symmetrically fixedly connected inside the air box, and an air exchange component, the air exchange component including two air blocking platforms that slide with the sliding rods, two air vents symmetrically opened on the air box, the air blocking platforms and the air vents being adapted, a first motor fixedly connected to the side of the air box, a first rotating shaft fixedly connected to the output end of the first motor, two irregularly shaped cams symmetrically fixedly connected to the circumference of the first rotating shaft, a connecting rod fixedly connected to the side of the air blocking platform, a guide ball fixedly connected to the end of the connecting rod, a first spring fixedly connected between the air blocking platform and the air box, the guide ball abutting against the irregularly shaped cams, and an alternating dust filter component fixedly connected to the side of the air box.

[0008] Preferably, the irregularly shaped cam includes a first circular portion and a second circular portion, wherein the diameter of the first circular portion is larger than that of the second circular portion.

[0009] Preferably, the gas delivery assembly includes a gas delivery platform, which is connected to the gas box. A protective net is fixedly connected to the side of the gas delivery platform, and a horizontal plate is fixedly connected inside the gas delivery platform. A second motor is fixedly connected to the side of the horizontal plate, and a second rotating shaft is fixedly connected to the output end of the second motor. A fan is fixedly connected to the end of the second rotating shaft.

[0010] Preferably, the alternating dust filtration assembly includes an auxiliary box, which is fixedly connected to the air box. An air outlet hopper is fixedly connected to the side of the auxiliary box, and the air outlet hopper has openings at both ends. The air outlet hopper corresponds to the air inlet. A first filter belt roller is rotatably connected inside the auxiliary box. Two fixed platforms are symmetrically fixedly connected to the side of the air box, and a second filter belt roller is rotatably connected to the fixed platforms. A flexible filter belt is provided between the first filter belt roller and the second filter belt roller.

[0011] Preferably, a guide frame is fixedly connected to the side of the air box, and a guide wheel is rotatably connected inside the guide frame, the guide wheel being matched with the flexible filter belt.

[0012] Preferably, an alternating component is fixedly connected to the second filter belt roller. The alternating component includes a rotating rod that is rotatably engaged with the second filter belt roller. A connecting frame is fixedly connected to the air box and is rotatably connected to the rotating rod. A rotating sleeve is fixedly connected to the air box on the circumferential side of the rotating rod. A pawl is fixedly connected to the side of the rotating sleeve, and an ear plate is fixedly connected to the side of the rotating sleeve. A second spring is fixedly connected between the ear plate and the pawl. A ratchet groove is formed on the second filter belt roller, and the ratchet groove matches the pawl.

[0013] Preferably, a filter belt preparation assembly is fixedly connected inside the air box. The filter belt preparation assembly includes a limiting block, which is fixedly connected to the air box. A first sprocket is fixedly connected to the circumferential side of the first rotating shaft. A fixing frame is fixedly connected to the side of the air box. An auxiliary rod is rotatably connected to the fixing frame. A second sprocket is fixedly connected to the circumferential side of the auxiliary rod. A chain is driven between the first sprocket and the second sprocket. The chain slides against the limiting block. A filter belt preparation component is fixedly connected to the auxiliary rod.

[0014] Preferably, the filter belt pre-assembly includes a missing gear, which is fixedly connected to an auxiliary rod. Two baffles are symmetrically fixedly connected to the side of the air box. A square rod is slidably connected to the baffle. A rack is fixedly connected to the end of the square rod. A third spring is fixedly connected between the rack and the baffle. A main gear is fixedly connected to the circumferential side of the rotating rod. The main gear meshes with the rack, and the missing gear and rack are matched.

[0015] Preferably, the flexible filter belt abuts against the air box and the air outlet hopper, and two limiting platforms are symmetrically fixedly connected to the air box, the limiting platforms being matched with the flexible filter belt.

[0016] The cleanroom air purification system proposed in this invention has the following advantages:

[0017] This invention involves a first motor driving a first rotating shaft. When the irregularly shaped cam rotates 180 degrees, the two air-blocking platforms change position, and the airflow direction changes to discharge from another air vent. During the 180-degree rotation of the irregularly shaped cam, the second filter belt roller retracts the flexible filter belt facing the air vent, recovering the dust-filled flexible filter belt at that position. After the irregularly shaped cam rotates 180 degrees, the flexible filter belt at that air vent position is brand new. This allows the airflow direction to be changed when the filter belt becomes blocked, and the dust-filled flexible filter belt is retracted during the process of changing the airflow direction. Compared with the filter plates in the prior art, this improves the air purification effect by blocking dust.

[0018] In existing devices, the machine needs to be stopped to replace the filter plates when they become clogged. This device, however, rotates a gear to move a rack when changing the airflow direction, which in turn drives the second filter belt roller to rotate. This allows the second filter belt roller in another position to be wound up during the airflow direction change, ensuring that the airflow direction is always aligned with the new flexible filter belt each time the filter is replaced, thus further improving the device's performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a cleanroom air purification system.

[0020] Figure 2This is a schematic diagram of the right-side structure of the present invention.

[0021] Figure 3 This is a schematic cross-sectional view of the gas box and gas delivery platform of the present invention.

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the air box of the present invention.

[0023] Figure 5 This is an assembly diagram of the air-blocking platform and slide bar of the present invention.

[0024] Figure 6 This is an assembly diagram of the auxiliary box and the first filter belt roller of the present invention.

[0025] Figure 7 This is an assembly diagram of the ratchet pawl and ratchet groove of the present invention.

[0026] Figure 8 This is an assembly drawing of the first sprocket, chain belt, and second sprocket of the present invention.

[0027] Figure 9 This is an assembly diagram of the missing gear and rack of the present invention.

[0028] Figure 10 This is an assembly diagram of the square rod and baffle of the present invention.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Air box; 2. Slide rod; 3. Air inlet; 4. Air blocking platform; 5. First motor; 6. First rotating shaft; 7. First circular part; 8. Second circular part; 9. Connecting rod; 10. Guide ball; 11. First spring; 12. Auxiliary box; 13. Air outlet hopper; 14. First filter belt roller; 15. Fixed platform; 16. Second filter belt roller; 17. Flexible filter belt; 18. Guide frame; 19. Guide wheel; 20. Connecting frame; 21. Rotating rod; 22. Rotating sleeve; 23. 24. Pawl; 25. Ear plate; 26. Second spring; 27. Ratchet groove; 28. Limiting block; 29. ​​First sprocket; 30. Fixing frame; 31. Auxiliary rod; 32. Second sprocket; 33. Chain belt; 34. Gear missing; 35. Baffle; 36. Square rod; 37. Rack; 38. Third spring; 39. Main gear; 40. Air conveying platform; 41. Protective net; 42. Horizontal plate; 43. Second motor; 44. Second rotating shaft; 45. Fan; 46. Limiting platform. Detailed Implementation

[0031] 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.

[0032] Example 1

[0033] Reference Figure 1-10 This invention relates to a cleanroom air purification system, comprising an air box 1, an air supply component fixedly connected to the side of the air box 1, a plurality of sliding rods 2 symmetrically fixedly connected inside the air box 1, and an air exchange component, which includes two air blocking platforms 4, which slide in cooperation with the sliding rods 2. Two air vents 3 are symmetrically opened on the air box 1, and the air blocking platforms 4 are adapted to the air vents 3. A first motor 5 is fixedly connected to the side of the air box 1, and a first rotating shaft 6 is fixedly connected to the output end of the first motor 5. Two irregularly shaped cams are symmetrically fixedly connected to the circumference of the first rotating shaft 6. A connecting rod 9 is fixedly connected to the side of the air blocking platform 4, and a guide ball 10 is fixedly connected to the end of the connecting rod 9. A first spring 11 is fixedly connected between the air blocking platform 4 and the air box 1, and the guide ball 10 abuts against the irregularly shaped cams. An alternating dust filter component is fixedly connected to the side of the air box 1.

[0034] The irregularly shaped cam includes a first circular portion 7 and a second circular portion 8. The diameter of the first circular portion 7 is larger than that of the second circular portion 8. The alternating dust filter assembly includes an auxiliary box 12, which is fixedly connected to the air box 1. An air outlet 13 is fixedly connected to the side of the auxiliary box 12. The air outlet 13 has openings at both ends and corresponds to the air inlet 3. A first filter belt roller 14 is rotatably connected inside the auxiliary box 12. Two fixed platforms 15 are symmetrically fixedly connected to the side of the air box 1. A second filter belt roller 16 is rotatably connected to the fixed platform 15. A flexible filter belt 17 is provided between the first filter belt roller 14 and the second filter belt roller 16. The flexible filter belt 17 abuts against the air box 1 and the air outlet 13. Two limiting platforms 45 are symmetrically fixedly connected to the air box 1. The limiting platforms 45 match the flexible filter belt 17.

[0035] The operation process of this embodiment is as follows: After placing the equipment in a cleanroom, start the device, and gas enters the gas box 1. The first spring 11 continuously pushes the gas blocking platform 4 away from the air inlet 3. In the initial state, the irregularly shaped cam is as follows: Figure 5 As shown, the first circular portion 7 of the irregular cam contacts the guide wheel 19 on one air-blocking platform 4, and the second circular portion 8 of the irregular cam contacts the guide wheel 19 on another air-blocking platform 4. At this time, the two air-blocking platforms 4 are as follows: Figure 4 As shown, one air-blocking platform 4 is tightly fitted with the air vent 3 on the air box 1 to block the air entering the air box 1. There is a gap between the other air-blocking platform 4 and its corresponding air vent 3. The first circular part 7 and the second circular part 8 are both semi-circular. When the guide wheel 19 on one side of the air-blocking platform 4 is fitted with the first circular part 7, the guide wheel 19 on the other side of the air-blocking platform 4 must be fitted with the second circular part 8. Thus, the air entering the air box 1 can only be discharged from one air vent 3. The first rotating shaft 6 can be rotated 180 degrees by the first motor 5, thereby realizing the position replacement of the first circular part 7 and the second circular part 8, which can change the direction of gas flow.

[0036] The air outlet 13 corresponds to the air vent 3, and since the flexible filter belt 17 abuts against the air box 1 and the air outlet 13, the two flexible filter belts 17 always remain in contact with the air box 1. The flexible filter belt 17 located at the air vent 3 can filter the gas discharged from the air vent 3, such as... Figure 6 As shown, after the gas enters the gas box 1, it is discharged through the vent 3 on one side. During discharge, the gas passes through the flexible filter belt 17 corresponding to the vent 3, thus separating the dust from the air. The cleaned air is discharged through the exhaust hopper 13, while the dust remains trapped on the flexible filter belt 17 at the vent 3. As usage time increases, the dust on the flexible filter belt 17 at this location gradually accumulates. The first motor 5 drives the first rotating shaft 6 to rotate 180 degrees, thereby completing the position swap between the first circular part 7 and the second circular part 8. Since the first spring 11 constantly pushes the two air-blocking platforms 4 away from the vent 3, the guides on the two air-blocking platforms 4... Ball 10 always fits against the irregular cam. At this time, the irregular cam rotates 180 degrees with the rotation of the first rotating shaft 6. The positions of the two air blocking platforms 4 in the air box 1 are moved, thereby changing the airflow direction in the air box 1. When too much dust accumulates on one flexible filter belt 17, the airflow direction can be changed so that the air is filtered through another flexible filter belt 17 at another air outlet 3. Without stopping the machine, the airflow direction can be changed so that the air is filtered and discharged through another flexible filter belt 17, thus preventing the dust on the flexible filter belt 17 from gradually accumulating too much and reducing the gradual decrease in the filtration of dust in the cleanroom.

[0037] Example 2

[0038] While changing the airflow direction can prevent the reduced air purification capacity of the device after the flexible filter belt 17 becomes clogged, if the flexible filter belt 17 becomes clogged again after the airflow direction is changed, dust will still adhere to the other flexible filter belt 17. Therefore, please refer to [the relevant documentation / reference needed]. Figure 6-10 Based on the first specific embodiment, a guide frame 18 is fixedly connected to the side of the air box 1, and a guide wheel 19 is rotatably connected inside the guide frame 18. The guide wheel 19 matches the flexible filter belt 17. An alternating component is fixedly connected to the second filter belt roller 16. The alternating component includes a rotating rod 21. The rotating rod 21 is rotatably engaged with the second filter belt roller 16. A connecting frame 20 is fixedly connected to the air box 1. The connecting frame 20 is rotatably connected with the rotating rod 21. A rotating sleeve 22 is fixedly connected to the side of the rotating rod 21 fixedly connected to the air box 1. A pawl 23 is fixedly connected to the side of the rotating sleeve 22. An ear plate 24 is fixedly connected to the side of the rotating sleeve 22. A second spring 25 is fixedly connected between the ear plate 24 and the pawl 23. A ratchet groove 26 is opened on the second filter belt roller 16. The ratchet groove 26 matches the pawl 23.

[0039] A filter belt preparation assembly is fixedly connected inside the air box 1. The filter belt preparation assembly includes a limiting block 27, which is fixedly connected to the air box 1. A first sprocket 28 is fixedly connected to the side of the first rotating shaft 6. A fixing frame 29 is fixedly connected to the side of the air box 1. An auxiliary rod 30 is rotatably connected to the fixing frame 29. A second sprocket 31 is fixedly connected to the side of the auxiliary rod 30. A chain belt 32 is provided between the first sprocket 28 and the second sprocket 31 for transmission. The chain belt 32 is slidably engaged with the limiting block 27. The auxiliary rod 30... A filter belt pre-assembly is fixedly connected, including a missing gear 33. The missing gear 33 is fixedly connected to the auxiliary rod 30. Two baffles 34 are symmetrically fixedly connected to the side of the air box 1. A square rod 35 is slidably connected to the baffle 34. A rack 36 is fixedly connected to the end of the square rod 35. A third spring 37 is fixedly connected between the rack 36 and the baffle 34. A main gear 38 is fixedly connected to the circumference of the rotating rod 21. The main gear 38 and the rack 36 mesh with each other. The missing gear 33 and the rack 36 are matched.

[0040] The operation process in this embodiment is as follows: Figure 8 , 10 As shown, the alternating ventilation direction process is as follows: the first motor 5 drives the first rotating shaft 6 to rotate 180 degrees. When the flexible filter belt 17 on one side is covered with dust, the rotation of the first rotating shaft 6 drives the first sprocket 28 to rotate. Due to the transmission cooperation between the chain belt 32 and the first sprocket 28 and the second sprocket 31, the second sprocket 31 rotates accordingly. The rotational force drives the auxiliary rod 30 and the missing gear 33 to rotate clockwise. The guide balls 10 slide along their respective first circular part 7 and second circular part 8. During the 180-degree rotation, the ventilation direction of the air does not change. The third spring 37 always pulls the rack 36 to move towards the position of the baffle 34. Figure 10 As shown, when the missing gear 33 rotates clockwise, it will pull the rack 36 on the left to move to the right. Since the rack 36 on the right does not mesh with the missing gear 33, it remains stationary. At this time, the rack 36 on the left moves to the right and stretches the third spring 37. The movement of the rack 36 drives its corresponding main gear 38 to rotate.

[0041] like Figure 7 As shown in the diagram, at this time, the main gear 38 rotates, causing the rotating rod 21 and the rotating sleeve 22 to rotate clockwise. Since the second spring 25 on the ear plate 24 always pushes the pawl 23 to move towards the position of the second filter belt roller 16, the pawl 23 and the ratchet groove 26 form a ratchet structure, so that when the rotating rod 21 and the rotating sleeve 22 rotate clockwise, the second filter belt roller 16 will rotate synchronously; otherwise, the second filter belt roller 16 will not rotate. At this time, the second filter belt roller 16 rotates with the rotation of the rotating sleeve 22, thus performing one winding action. Figure 8As shown, the flexible filter belt 17 at the upper vent 3 is wound up. In this state, air can only be discharged through the lower vent 3, while the upper vent 3 is blocked. This continues until the shaped cam rotates 180 degrees. At this point, the second filter belt roller 16 at the top completely retracts the used flexible filter belt 17 at the vent 3. The guide ball 10 on the air blocking platform 4 at this position then contacts the second circle 8 after contacting the first circle 7. That is, only one of the two air blocking platforms 4 can allow air to pass through the vent 3. When too much dust accumulates on the flexible filter belt 17 at the vent 3 at this position, the shaped cam rotates 180 degrees. During the rotation of the shaped cam, the flexible filter belt 17 at the other vent 3 moves. After the flexible filter belt 17 filled with dust is completely rolled up, the flexible filter belt 17 at the air vent 3 position is now a clean filter belt. After rotating 180 degrees, the positions of the two air blocking platforms 4 change, and the gas is discharged through the air vent 3 after passing through the alternating filter belt. Similarly, when the flexible filter belt 17 becomes blocked again, the shaped cam can be rotated 180 degrees again. During the rotation, the flexible filter belt 17 at another position can be moved. After the rotation, the position of the air blocking platform 4 changes again. This achieves the goal of rolling up the flexible filter belt 17 at the air vent 3 position that is about to be opened each time the ventilation direction is changed. This ensures that the air can always be filtered by the unused flexible filter belt 17 after each change of ventilation direction, further improving the effectiveness of the device.

[0042] like Figure 10 As shown, the process of the missing gear 33 pulling the left rack 36 to the right is the winding process of the flexible filter belt 17 at that position. Because the pawl 23 and the ratchet groove 26 form a ratchet structure, the second filter belt roller 16 will only rotate when the rotating rod 21 rotates clockwise. When the flexible filter belt 17 at that position is wound up, the missing gear 33 disengages from the left rack 36, and the stretched third spring 37 pulls the rack 36 back to its original position. Since the main gear 38 and the rack 36 are meshed, the rotating rod 21 rotates accordingly. However, due to the ratchet structure, the second filter belt roller 16 will not follow. The rotation means that the second filter belt roller 16 can only wind up the belt and cannot unwind it. Thus, during each alternation, a section of flexible filter belt 17 will be wound up. After the missing gear 33 disengages from the rack 36 on the left, it meshes with the rack 36 on the right. Similarly, at this time, the missing gear 33 drives the second filter belt roller 16 on the right to wind up the flexible filter belt 17 at this position. This ensures that during each alternation, a small section of the flexible filter belt 17 at the position where the vent 3 is about to be opened is wound up, avoiding the problem that the flexible filter belt 17 in the ventilation direction is dusty and cannot meet the filtration effect of dust in the air when the ventilation direction is changed.

[0043] Example 3

[0044] Please see Figure 1-3 Based on the first specific embodiment, the gas delivery assembly includes a gas delivery platform 39, which is connected to the gas box 1. A protective net 40 is fixedly connected to the side of the gas delivery platform 39, and a horizontal plate 41 is fixedly connected inside the gas delivery platform 39. A second motor 42 is fixedly connected to the side of the horizontal plate 41, and a second rotating shaft 43 is fixedly connected to the output end of the second motor 42. A fan 44 is fixedly connected to the end of the second rotating shaft 43.

[0045] The operation process of this embodiment is as follows: When supplying gas, the second motor 42 drives the second rotating shaft 43 to rotate. The rotation of the second rotating shaft 43 drives the fan 44 to rotate, thereby creating a negative pressure in the gas supply platform 39, causing the air in the cleanroom to flow into the gas box 1. The continuous rotation of the fan 44 can maintain the continuous flow of gas, thereby continuously purifying the air passing through the gas box 1. The protective net 40 can not only prevent accidental contact by outside personnel, but also block debris, preventing other contaminants from entering the device and reducing the device's air purification effect.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cleanroom air purification system, comprising an air box (1), wherein an air supply assembly is fixedly connected to the side of the air box (1), and a plurality of sliding rods (2) are symmetrically fixedly connected inside the air box (1), characterized in that: It also includes a ventilation replacement component, which includes two air blocking platforms (4), the air blocking platforms (4) and the slide rod (2) are slidably engaged, two air vents (3) are symmetrically opened on the air box (1), the air blocking platforms (4) are adapted to the air vents (3), a first motor (5) is fixedly connected to the side of the air box (1), a first rotating shaft (6) is fixedly connected to the output end of the first motor (5), two irregularly shaped cams are symmetrically fixedly connected to the circumference of the first rotating shaft (6), a connecting rod (9) is fixedly connected to the side of the air blocking platform (4), a guide ball (10) is fixedly connected to the end of the connecting rod (9), a first spring (11) is fixedly connected between the air blocking platform (4) and the air box (1), the guide ball (10) abuts against the irregularly shaped cams, and an alternating dust filter component is fixedly connected to the side of the air box (1).

2. The cleanroom air purification system according to claim 1, characterized in that, The irregular cam includes a first circular portion (7) and a second circular portion (8), wherein the diameter of the first circular portion (7) is larger than that of the second circular portion (8).

3. The cleanroom air purification system according to claim 1, characterized in that, The gas delivery assembly includes a gas delivery platform (39), which is connected to the gas box (1). A protective net (40) is fixedly connected to the side of the gas delivery platform (39). A horizontal plate (41) is fixedly connected inside the gas delivery platform (39). A second motor (42) is fixedly connected to the side of the horizontal plate (41). A second rotating shaft (43) is fixedly connected to the output end of the second motor (42). A fan (44) is fixedly connected to the end of the second rotating shaft (43).

4. The cleanroom air purification system according to claim 1, characterized in that, The alternating dust filtration assembly includes an auxiliary box (12), which is fixedly connected to the air box (1). An air outlet hopper (13) is fixedly connected to the side of the auxiliary box (12). The air outlet hopper (13) has openings at both ends and corresponds to the air inlet (3). A first filter belt roller (14) is rotatably connected inside the auxiliary box (12). Two fixed platforms (15) are symmetrically fixedly connected to the side of the air box (1). A second filter belt roller (16) is rotatably connected to the fixed platform (15). A flexible filter belt (17) is provided between the first filter belt roller (14) and the second filter belt roller (16).

5. The cleanroom air purification system according to claim 4, characterized in that, The air box (1) is fixedly connected to a guide frame (18) on the side, and a guide wheel (19) is rotatably connected inside the guide frame (18). The guide wheel (19) is matched with the flexible filter belt (17).

6. The cleanroom air purification system according to claim 4, characterized in that, An alternating component is fixedly connected to the second filter belt roller (16). The alternating component includes a rotating rod (21). The rotating rod (21) is rotatably engaged with the second filter belt roller (16). A connecting frame (20) is fixedly connected to the air box (1). The connecting frame (20) is rotatably connected to the rotating rod (21). A rotating sleeve (22) is fixedly connected to the circumferential side of the rotating rod (21). A pawl (23) is fixedly connected to the side of the rotating sleeve (22). An ear plate (24) is fixedly connected to the side of the rotating sleeve (22). A second spring (25) is fixedly connected between the ear plate (24) and the pawl (23). A ratchet groove (26) is provided on the second filter belt roller (16). The ratchet groove (26) matches the pawl (23).

7. The cleanroom air purification system according to claim 1, characterized in that, A filter belt preparation assembly is fixedly connected inside the air box (1). The filter belt preparation assembly includes a limiting block (27). The limiting block (27) is fixedly connected to the air box (1). A first sprocket (28) is fixedly connected to the side of the first rotating shaft (6). A fixing frame (29) is fixedly connected to the side of the air box (1). An auxiliary rod (30) is rotatably connected to the fixing frame (29). A second sprocket (31) is fixedly connected to the side of the auxiliary rod (30). A chain belt (32) is driven between the first sprocket (28) and the second sprocket (31). The chain belt (32) slides with the limiting block (27). A filter belt preparation component is fixedly connected to the auxiliary rod (30).

8. The cleanroom air purification system according to claim 7, characterized in that, The filter belt preparatory component includes a missing gear (33), which is fixedly connected to an auxiliary rod (30). Two baffles (34) are symmetrically fixedly connected to the side of the air box (1). A square rod (35) is slidably connected to the baffle (34). A rack (36) is fixedly connected to the end of the square rod (35). A third spring (37) is fixedly connected between the rack (36) and the baffle (34). A main gear (38) is fixedly connected to the circumferential side of the rotating rod (21). The main gear (38) meshes with the rack (36). The missing gear (33) and the rack (36) are matched.

9. A cleanroom air purification system according to claim 4, characterized in that, The flexible filter belt (17) abuts against the air box (1) and the air outlet hopper (13). Two limiting platforms (45) are symmetrically fixedly connected on the air box (1), and the limiting platforms (45) match the flexible filter belt (17).

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