Roller shutter filter convenient for material replacement

Abstract

The invention discloses a roller shutter filter convenient for material replacement, and relates to the technical field of filters, the roller shutter filter convenient for material replacement comprises a main rack, a roller shutter filter material is arranged at the front end of the main rack, a feeding box is arranged at the front end of the roller shutter filter material, and a driving assembly is arranged at the lower end of the feeding box; a protection plate is arranged at the front end of the driving assembly, the two ends of the protection plate are fixed to the feeding box through external screws to protect the driving assembly, racks are arranged at the two ends of the driving assembly, guide rails are arranged on one sides of the racks, the guide rails and the racks are fixed to the main machine frame, and a material collecting box is arranged at the front end of the bottom end of the main machine frame. According to the scheme, the problems that an existing roller shutter filter is generally complex in structure and large in size, replacement of a filter material roll often needs to be operated by professionals, the number of disassembled parts is large, consumed time is long, and the portability and the material replacement convenience are poor in the scene where moving use is needed, filter materials are frequently replaced or operation is carried out in a narrow space are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filter, in particular to a portable and easy-to-replace roll curtain filter. BACKGROUND

[0002] The roll curtain filter is widely used in air purification systems and industrial dust removal fields due to its advantages of providing a large filtering area and realizing continuous or automatic replacement of filter material. For example, the Chinese authorized patent with the publication number CN220424848U (a full-automatic roll curtain filter) includes a support seat, a protective door, a filter assembly, and a sterilization mechanism. The support seat has a filter assembly installed inside the rear side. The support seat has a protective door slidingly arranged on both sides of the front part. The support seat has a sterilization mechanism arranged on the rear side of the middle part. The filter assembly is sterilized by turning on the ultraviolet lamp. During the sterilization process, the staff rotates the bidirectional screw rod to move the ultraviolet lamp inward on the guide rod to adjust the position of the ultraviolet lamp for better sterilization purpose, thereby protecting the physical and mental health of the staff.

[0003] However, the existing roll curtain filter usually has a complex structure and a large size. The replacement of the filter roll often requires professional operation, disassembly of many parts, and long time consumption. For scenarios requiring mobile use, frequent replacement of filter material, or operation in a small space, the portability and replacement convenience are poor. Therefore, the existing demand is not met. To this end, the present application provides a portable and easy-to-replace roll curtain filter. SUMMARY

[0004] The present application aims to provide a portable and easy-to-replace roll curtain filter to solve the problem of the existing roll curtain filter usually having a complex structure and a large size, the replacement of the filter roll often requiring professional operation, disassembly of many parts, and long time consumption, and poor portability and replacement convenience for scenarios requiring mobile use, frequent replacement of filter material, or operation in a small space.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a portable and easy-to-replace roll curtain filter, comprising a main frame, a roll curtain filter arranged at the front end of the main frame, an upper material box arranged at the front end of the roll curtain filter, a drive assembly arranged at the lower end of the upper material box, a protective plate arranged at the front end of the drive assembly, the two ends of the protective plate being fixed to the upper material box by external screws to protect the drive assembly, a gear rack arranged at both ends of the drive assembly, a guide rail arranged at one side of the gear rack, and the guide rail and the gear rack being fixed to the main frame, and a material collecting box arranged at the front end of the bottom end of the main frame.

[0006] Preferably, the drive assembly includes a rotating shaft, the two ends of the rotating shaft are externally fixed with a gear, and the gear is engaged with the gear rack.

[0007] Preferably, the drive assembly further includes a first reducer, which is located outside the rotating shaft. A first motor is provided at one end of the first reducer, and a second fixing plate is provided on one side of the first reducer. The first reducer is fixed to the feeding box by external bolts of the second fixing plate.

[0008] Preferably, a positioning seat is provided between the first reducer and the gear. A rotating groove is provided on one side surface of the positioning seat, and the rotating groove passes through the positioning seat. The rotating shaft passes through the rotating groove and rotates along the rotating groove. A first fixing plate is provided on one side of the positioning seat, and the first fixing plate is fixed to the feeding box by external bolts.

[0009] Preferably, an upper limit switch is provided at the top of the rack, a lower limit switch is provided at the bottom of the rack, a control box is provided below the lower limit switch, and a control panel is provided at the front of the control box.

[0010] Preferably, the front surface of the guide rail is provided with a guide rail groove, and the inside of the guide rail is a cavity. Both ends of the guide rail are provided with limit end seats. The front end of the limit end seat is provided with a threaded post, and one end of the threaded post passes through the guide rail groove. One end of the threaded post is externally threaded to a nut. A sliding assembly is provided below the limit end seat. Multiple sliding assemblies are provided, and the feeding box moves up and down along the guide rail through the sliding assemblies.

[0011] Preferably, the threaded post is provided with an inner baffle on its outside, and an outer baffle is provided on one side of the inner baffle, with the outer baffle and the inner baffle located on both sides of the guide rail groove, respectively.

[0012] Preferably, the sliding assembly includes a slider and a mounting plate, and the slider and the mounting plate are respectively located on both sides of the guide rail groove. The slider and the mounting plate are connected by fixing bolts. A mounting post is provided at the center of the slider, and one end of the mounting post is fixed to the feeding box. The other end of the mounting post passes through the slider and the mounting plate and is provided with a wheel frame. Both ends of the wheel frame are rotatably connected to movable pulleys.

[0013] Preferably, the receiving box is equipped with a receiving roller inside, and both ends of the receiving roller are equipped with rotating shafts, which are rotatably connected to the receiving box through external ball bearings. Side baffles are provided on the outside of the receiving roller near both ends. A belt guard is provided on one side of the receiving box. A second reducer is provided at one end of the belt guard, and a second motor is provided on one side of the second reducer. The output end of the second motor drives the receiving roller to rotate through an external timing belt, and the belt guard protects the timing belt.

[0014] Preferably, the opening of the feeding box is provided with a cover plate, and a hinge is provided at the connection between one side of the cover plate and the feeding box, and the cover plate is rotatably connected to the feeding box through the hinge.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) This invention sets a drive assembly at the lower end of the loading box. The drive assembly mainly consists of gears and a first motor assembly. The first motor is started by a PLC controller. Through the meshing of the gears and rack, a downward driving force is generated, which drives the loading box to descend smoothly along the guide rail. The position is monitored in real time by an encoder. When the loading box drops to the preset material changing height, the PLC controller automatically cuts off the power, the first motor stops operating, and the loading box stops precisely. If the encoder fails, the loading box will also be forced to stop when it touches the lower limit switch, ensuring safety. Through the meshing of the gears and rack, the rotational motion is directly converted into the linear lifting motion of the box body. No external equipment is required, which ensures that the loading box weighing hundreds of kilograms is extremely stable, without shaking or jamming during the lifting process, and effectively counteracts the lateral force of the gear and rack transmission. This is the basis for achieving safe and reliable operation. Through the dual protection design of the first motor, upper limit switch and lower limit switch, the first motor has a built-in brake to ensure that the loading box is immediately locked when the power is cut off. Both the upper and lower limit switches are mechanical limit switches, serving as hardware redundancy and providing final safety protection in case of circuit system failure. These two features together constitute the key safety effect, solving the core safety hazard of heavy loads falling from heights. The drive lifting system is fully integrated inside the equipment, eliminating the need for external lifting equipment. The overall structure is compact, and with the bottom casters, it truly achieves portable material changing. Operators can easily control the lifting and lowering of the heavy material box with a button, greatly reducing labor intensity and improving material changing efficiency. Through the servo control system and encoder feedback, the material box can be precisely stopped at any preset height, ensuring perfect interface with the filter host and guaranteeing sealing. This solves the problems of existing roller shutter filters, which are usually complex in structure and bulky, and whose filter roll replacement often requires professional operation, disassembly of many parts, and is time-consuming. For scenarios that require mobile use, frequent filter replacement, or operation in confined spaces, this results in poor portability and ease of material changing.

[0016] (2) By setting sliding components at the rear ends of both sides of the feeding box, the wheel frame is inserted into the guide rail, and the mounting post slides along the guide rail groove. The slider and the mounting plate are located on both sides of the guide rail groove, and the slider and the mounting plate are connected by fixing bolts. When the feeding box moves up and down, the moving pulley contacts the inner wall of the guide rail and slides, which stabilizes the movement of the feeding box and prevents position deviation. The limiting end seat is inserted into the guide rail, and the limiting end seat is installed at both ends of the guide rail to seal the two ends of the guide rail and prevent the moving pulley from sliding out of the guide rail, thereby further improving stability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention after the protective plate has been removed, viewed from below. Figure 3 This is a schematic diagram of the overall structure of the feeding box after it has been moved according to the present invention; Figure 4 This is a schematic diagram of the sliding component structure of the present invention; Figure 5 This is a schematic diagram of the connection end structure between the main frame and the guide rail of the present invention; Figure 6 This is a schematic diagram of the drive component structure of the present invention; In the diagram: 1. Main frame; 2. Feeding box; 3. Guide rail; 4. Rack; 5. Sliding assembly; 6. First motor; 7. First reducer; 8. Gear; 9. Control box; 10. Control panel; 11. Upper limit switch; 12. Lower limit switch; 13. Roller curtain filter material; 14. Receiving box; 15. Cover plate; 16. Hinge; 17. Protective plate; 18. Rotating shaft; 19. Positioning seat; 20. First fixing plate; 21. Second fixing plate 21. Fixed plate; 22. Drive assembly; 23. Slider; 24. Mounting plate; 25. Fixing bolt; 26. Mounting post; 27. Wheel frame; 28. Moving pulley; 29. ​​Limiting end seat; 30. Outer baffle; 31. Inner baffle; 32. Nut; 33. Threaded post; 34. Rotating groove; 35. Take-up roller; 36. Second motor; 37. Second reducer; 38. Belt guard; 39. Rotating shaft; 40. Side baffle; 41. Guide rail groove. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-6 An embodiment of the present invention provides a portable, replaceable roller shutter filter, comprising: a main frame 1, a roller shutter filter material 13 disposed at the front end of the main frame 1, a feeding box 2 disposed at the front end of the roller shutter filter material 13, a drive assembly 22 disposed at the lower end of the feeding box 2, a protective plate 17 disposed at the front end of the drive assembly 22, and the two ends of the protective plate 17 being fixed to the feeding box 2 by external screws to protect the drive assembly 22, a rack 4 disposed at both ends of the drive assembly 22, a guide rail 3 disposed on one side of the rack 4, and both the guide rail 3 and the rack 4 being fixed to the main frame 1, and a receiving box 14 disposed at the front end of the bottom end of the main frame 1; The drive assembly 22 includes a rotating shaft 18, with gears 8 fixed to both ends of the rotating shaft 18, and the gears 8 meshing with a rack 4. The drive assembly 22 also includes a first reducer 7, which is located outside the rotating shaft 18. A first motor 6 is installed at one end of the first reducer 7, and a second fixing plate 21 is installed on one side of the first reducer 7. The first reducer 7 is fixed to the feeding box 2 by external bolts of the second fixing plate 21, thus fixing both the first reducer 7 and the first motor 6. A positioning seat 19 is provided between the first reducer 7 and the gears 8. A rotating groove 34 is provided on one side of the positioning seat 19, and the rotating shaft 18 passes through the rotating groove 34 and rotates along the rotating groove 34. A first fixing plate 20 is provided on one side of the positioning seat 19, and the first fixing plate 20 is fixed to the feeding box 2 by external bolts to ensure that the gear 8 can rotate normally without falling off or shifting its position, thereby improving stability. An upper limit switch 11 is provided at the top of the rack 4, and a lower limit switch 12 is provided at the bottom of the rack 4. A control box 9 is provided below the lower limit switch 12, and a control box 9 is provided at the front end of the control box 9. The control panel 10 has a guide rail groove 41 on the front surface of the guide rail 3, and the guide rail 3 is hollow inside. Limiting end seats 29 are provided at both ends of the guide rail 3. A threaded post 33 is provided at the front end of the limiting end seat 29, and one end of the threaded post 33 passes through the guide rail groove 41. A nut 32 is externally threaded to one end of the threaded post 33. A sliding assembly 5 is provided below the limiting end seat 29. Multiple sliding assemblies 5 are provided, and the feeding box 2 moves up and down along the guide rail 3 via the sliding assemblies 5. An inner baffle 31 is provided outside the threaded post 33, and an outer... The outer baffle 30 and the inner baffle 31 are respectively located on both sides of the guide rail groove 41. The sliding assembly 5 includes a slider 23 and a mounting plate 24, and the slider 23 and the mounting plate 24 are respectively located on both sides of the guide rail groove 41. The slider 23 and the mounting plate 24 are connected by a fixing bolt 25. A mounting post 26 is provided at the center of the slider 23, and one end of the mounting post 26 is fixed to the feeding box 2. The other end of the mounting post 26 passes through the slider 23 and the mounting plate 24 and is provided with a wheel frame 27. Both ends of the wheel frame 27 are rotatably connected to movable pulleys 28. The wheel frame 27 is inserted into the guide rail 3, and the mounting post 26 slides along the guide rail groove 41. The slider 23 and the mounting plate 24 are located on both sides of the guide rail groove 41. The slider 23 and the mounting plate 24 are connected by fixing bolts 25. When the feeding box 2 moves up and down, the moving pulley 28 contacts the inner wall of the guide rail 3 and slides, which stabilizes the movement of the feeding box 2 and prevents position deviation. Furthermore, the limiting end seat 29 is inserted into the guide rail 3. The limiting end seat 29 is installed at both ends of the guide rail 3 to seal the two ends of the guide rail 3, preventing the moving pulley 28 from sliding out of the guide rail 3, thereby further improving stability. The two ends of the protective plate 17 are fixed to the feeding box 2 by external screws to protect the drive assembly 22; During material change, the operator presses the "Lower" button on the control panel 10, which drives the first motor 6 to start via the PLC controller. Both the first motor 6 and the second motor 36 are servo motors, which is the existing operating technology. Through the meshing of the gear 8 and the rack 4, a downward driving force is generated, which drives the loading box 2 to descend smoothly along the guide rail 3. The position is monitored in real time by the encoder. When the material drops to the preset material change height, the PLC controller automatically cuts off the power, the first motor 6 stops operating, and the loading box 2 stops precisely. If the encoder malfunctions, the feeding box 2 will also be forced to stop when it touches the lower limit switch 12 to ensure safety. After the material change is completed, the operator presses the "up" button on the surface of the control panel 10. The first motor 6 reverses and the feeding box 2 rises smoothly to the upper limit switch 11 at the top and stops, thus realizing the up and down movement of the feeding box 2 to perform the material change operation. This is the foundation of integrated and self-driven lifting. The first motor 6 is installed on the feeding box 2. When the gear 8 rotates, it "walks" along the fixed rack 4, thus directly converting the rotational motion into the linear lifting motion of the box body. No external equipment is required, which ensures that the feeding box 2, which weighs hundreds of kilograms, is extremely stable, without shaking or jamming during the lifting process, and effectively counteracts the lateral force of the gear 8 and rack 4 transmission. This is the basis for achieving safe and reliable operation. The first motor 6 and the second motor 36 both have built-in encoders. The first motor 6, the second motor 36, the upper limit switch 11 and the lower limit switch 12 are all connected to the PLC controller installed in the control box 9. The operation commands are issued through the control panel 10. Through the dual protection design of the first motor 6, the upper limit switch 11 and the lower limit switch 12, the first motor 6 has a built-in brake to ensure that the feeding box 2 is immediately locked when the power is cut off. The upper limit switch 11 and the lower limit switch 12 are both mechanical limit switches, which serve as hardware redundancy and provide final safety protection when the circuit system fails. These two features together constitute the key safety effect and solve the core safety hazard of heavy load falling from a height. The receiving box 14 is equipped with a receiving roller 35 inside. Both ends of the receiving roller 35 are equipped with a rotating shaft 39, and the rotating shaft 39 is rotatably connected to the receiving box 14 through an external ball bearing. Side baffles 40 are provided on the outside of the receiving roller 35 near both ends. A belt guard 38 is provided on one side of the receiving box 14. A second reducer 37 is provided at one end of the belt guard 38. A second motor 36 is provided on one side of the second reducer 37. The output end of the second motor 36 drives the receiving roller 35 to rotate through an external timing belt. The belt guard 38 protects the timing belt. A cover plate 15 is provided at the opening of the loading box 2. A hinge 16 is provided at the connection between one side of the cover plate 15 and the loading box 2. The cover plate 15 is rotatably connected to the loading box 2 through the hinge 16, which facilitates the opening and closing of the cover plate 15 and improves flexibility. By starting the second motor 36, the output end of the second motor 36 drives the take-up roller 35 to rotate through the external timing belt, thereby realizing the winding of the curtain filter material 13, achieving a storage and folding effect, which is convenient for disassembly and replacement in small spaces and improves convenience.

[0020] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A portable and refilling roller blind filter comprising a main frame (1), characterized in that: The front end of the main rack (1) is provided with a roller shutter filter (13), the front end of the roller shutter filter (13) is provided with a feeding box (2), the lower end of the feeding box (2) is provided with a driving assembly (22), the front end of the driving assembly (22) is provided with a protective plate (17), and the both ends of the protective plate (17) are fixed with the feeding box (2) through external screws, the driving assembly (22) is protected, the both ends of the driving assembly (22) are provided with a rack (4), one side of the rack (4) is provided with a guide rail (3), and the guide rail (3) and the rack (4) are fixed with the main rack (1), and the front end of the bottom end of the main rack (1) is provided with a receiving box (14).

2. A portable, refillable, pleated filter according to claim 1, wherein: The driving assembly (22) comprises a rotating shaft (18), the both ends of the rotating shaft (18) are externally fixed with a gear (8), and the gear (8) is engaged with the rack (4).

3. A portable, refillable, pleated filter according to claim 2, wherein: The driving assembly (22) further comprises a first speed reducer (7), and the first speed reducer (7) is located outside the rotating shaft (18), one end of the first speed reducer (7) is provided with a first motor (6), one side of the first speed reducer (7) is provided with a second fixed plate (21), and the first speed reducer (7) is fixed with the feeding box (2) through the second fixed plate (21) external bolt.

4. The portable, refillable, pleated filter of claim 3, wherein: The first speed reducer (7) and the gear (8) are provided with a positioning seat (19), one side surface of the positioning seat (19) is provided with a rotating groove (34), the rotating groove (34) penetrates the positioning seat (19), and the rotating shaft (18) penetrates the rotating groove (34), and the rotating shaft (18) rotates along the rotating groove (34), one side of the positioning seat (19) is provided with a first fixed plate (20), and the first fixed plate (20) is fixed with the feeding box (2) through external bolts.

5. The portable, refillable, pleated filter of claim 1, wherein: The top end of the rack (4) is provided with an upper limit switch (11), the bottom end of the rack (4) is provided with a lower limit switch (12), the lower limit switch (12) is provided below the control box (9), and the front end of the control box (9) is provided with a control panel (10).

6. The portable, refillable, pleated filter of claim 1, wherein: The front surface of the guide rail (3) is provided with a guide rail sliding groove (41), and the guide rail (3) is a cavity, the both ends of the guide rail (3) are internally provided with a limiting end seat (29), the front end of the limiting end seat (29) is provided with a threaded column (33), one end of the threaded column (33) penetrates the guide rail sliding groove (41), one end of the threaded column (33) is externally threadedly connected with a nut (32), and the limiting end seat (29) is provided below the sliding assembly (5), the sliding assembly (5) is provided with a plurality of sliding assemblies (5), and the feeding box (2) moves up and down along the guide rail (3) through the sliding assembly (5).

7. A portable, refillable, pleated filter according to claim 6, wherein: The outer portion of the threaded column (33) is provided with an inner baffle (31), one side of the inner baffle (31) is provided with an outer baffle (30), and the outer baffle (30) and the inner baffle (31) are located on the both sides of the guide rail sliding groove (41) respectively.

8. The portable, refillable, pleated filter of claim 6, wherein: The sliding assembly (5) comprises a sliding block (23) and a mounting plate (24), and the sliding block (23) and the mounting plate (24) are located at two sides of the guide rail sliding groove (41) respectively, the sliding block (23) and the mounting plate (24) are connected through the fixing bolt (25) arranged therebetween, the mounting plug-in column (26) is arranged at the center of the sliding block (23), one end of the mounting plug-in column (26) is fixed with the feeding box (2), the other end of the mounting plug-in column (26) is provided with the wheel frame (27) after penetrating through the sliding block (23) and the mounting plate (24), and the movable pulley (28) is rotatably connected to both sides of both ends of the wheel frame (27).

9. The portable, refillable, pleated filter of claim 1, wherein: The inside of the receiving box (14) is provided with a receiving roller (35), both ends of the receiving roller (35) are provided with rotating shafts (39), and the rotating shafts (39) are rotatably connected with the receiving box (14) through external ball bearings, the outside of the receiving roller (35) close to both ends is provided with side baffles (40), one side of the receiving box (14) is provided with a belt protection cover (38), one end of the belt protection cover (38) is provided with a second speed reducer (37), one side of the second speed reducer (37) is provided with a second motor (36), the output end of the second motor (36) drives the receiving roller (35) to rotate through an external timing belt, and the belt protection cover (38) protects the timing belt.

10. The portable, refillable, pleated filter of claim 1, wherein: The opening of the feeding box (2) is provided with a cover plate (15), the connecting place of one side of the cover plate (15) and the feeding box (2) is provided with a hinge (16), and the cover plate (15) is rotatably connected with the feeding box (2) through the hinge (16).

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