A rotary doctor blade type filter cartridge ash removal structure
The rotary scraper filter cartridge cleaning structure solves the problem of difficult dust removal inside hollow cylindrical filter cartridges, enabling flexible and adaptable cleaning of filter cartridges of different sizes, improving cleaning effect and safety, and extending the service life of the filter cartridges.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU CHANGJING ENVIRONMENTAL PROTECTION TECH
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-24
AI Technical Summary
Existing technologies are unable to effectively clean the dust inside hollow cylindrical filter cartridges, resulting in increased filtration resistance and reduced ventilation. Furthermore, dust removal devices on the market neglect the cleaning needs of the inner surface.
A rotary scraper filter cartridge cleaning structure was designed, including a bonding plate, a rotating plate, an outer scraper, an inner scraper, and an adjustment and extension mechanism. The position of the outer scraper is adjusted by the retractable rotating plate, and the position of the inner scraper is adjusted by the locking block and spring mechanism. Combined with the sliding engagement of the T-slot and the block, adaptive cleaning of filter cartridges with different inner and outer diameters can be achieved.
It enables flexible and adaptable cleaning of filter cartridges of different sizes, improves the uniformity and safety of dust removal, avoids damage caused by rigid contact, and ensures the permeability and service life of the filter cartridges.
Smart Images

Figure CN224541308U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of filter cartridge cleaning equipment, and in particular to a rotary scraper filter cartridge cleaning structure. Background Technology
[0002] As a core component of industrial dust removal equipment and air purification systems, the filter cartridge's filtration performance directly affects the overall system's operating efficiency and environmental quality. During use, the filter cartridge surface gradually becomes clogged with dust, particulate matter, and other impurities, leading to increased filtration resistance and reduced airflow. Therefore, regular cleaning of the filter cartridge is necessary to restore its performance and extend its service life.
[0003] For common hollow cylindrical filter cartridges, cleaning the outer surface is relatively straightforward, but cleaning the internal cavity is quite inconvenient. Due to the limited internal space and restricted field of vision, conventional cleaning tools cannot easily reach and brush the inner walls, making it difficult to effectively remove dust. Many dust removal devices on the market also tend to focus only on external cleaning, neglecting the equally important cleaning needs of the inner surface, thus preventing the overall permeability of the filter cartridge from being fully restored.
[0004] Therefore, it is necessary to provide a new rotary scraper filter cartridge cleaning structure to solve the above-mentioned technical problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a rotary scraper filter cartridge cleaning structure.
[0006] The rotary scraper filter cartridge cleaning structure provided by this utility model includes: a bonding plate, a rotating plate, an outer scraper, an inner scraper, and an adjustment and extension mechanism. The rotating plate is rotatably connected to the center of the upper surface of the bonding plate. The outer scraper is fixedly connected to the lower surface of the rotating plate through the bonding mechanism. A sliding sleeve is slidably connected to the rod of the rotating plate, and a locking block for locking is threadedly connected to the upper surface of the sliding sleeve. The bottom end of the locking block penetrates the inner wall of the sliding sleeve and contacts the rotating plate. An L-shaped rod is fixedly connected to the lower surface of the sliding sleeve, and an inner scraper is fixedly connected to the bottom end of the L-shaped rod. An adjustment and extension mechanism is provided at the bottom ends of the outer scraper and the inner scraper.
[0007] Preferably, the bonding mechanism includes a sliding rod, a slider, and a spring. A pressing groove is formed on the lower surface of the rotating plate. A sliding rod is fixedly connected between the inner walls of the two sides of the pressing groove, and a slider is slidably connected to the inner wall of the pressing groove. The slider passes through the sliding rod and is slidably connected to it. A spring is threaded through the outer side of the sliding rod. The two ends of the spring abut against the side wall of the slider and the inner wall of the pressing groove, respectively. The top end of the outer scraper is fixedly connected to the slider.
[0008] Preferably, the rotating plate is a telescopic plate with locking mechanism.
[0009] Preferably, the adjustment and extension mechanism includes an inner extension brush and an outer extension brush. The bottom ends of both the outer and inner brushes are provided with T-shaped grooves, and the top ends of both the inner and outer extension brushes are fixedly connected with matching T-shaped blocks, which are slidably engaged in the T-shaped grooves.
[0010] Preferably, both the inner and outer extension brushes have T-grooves at their bottom ends.
[0011] Preferably, a rotating handle is fixedly connected to the outer edge of the upper surface of the rotating plate.
[0012] Preferably, a rubber pad is fixedly connected to the lower surface of the bonding plate.
[0013] Compared with related technologies, the rotary scraper filter cartridge cleaning structure provided by this utility model has the following beneficial effects: 1. This utility model adjusts the position of the outer scraper by means of a retractable rotating plate, and adjusts the position of the inner scraper by means of a sliding sleeve that can slide on the rotating plate and is fixed by a locking block, thereby achieving adaptability to filter cartridges with different inner and outer diameters.
[0014] 2. To accommodate filter cartridges of different lengths, this utility model is equipped with an adjustment and extension mechanism. By utilizing the sliding engagement of the T-slot and the T-block, the inner extension brush and the outer extension brush can be conveniently connected in series, thereby flexibly adjusting the effective working length of the scraper. Furthermore, the outer scraper is connected to the rotating plate through a spring-loaded fitting mechanism, ensuring that it can elastically fit the surface of the filter cartridge, which not only improves the uniformity of dust removal but also avoids damage that may be caused by rigid contact. Attached Figure Description
[0015] Figure 1 A schematic diagram of a preferred embodiment of the rotary scraper filter cartridge cleaning structure provided by this utility model; Figure 2 This is a schematic diagram of the bonding mechanism in this utility model; Figure 3 for Figure 1 A magnified structural diagram of region A in the middle.
[0016] The following are the labels in the diagram: 1. Rotating plate; 2. Outer scraper; 3. Inner scraper; 4. Sliding sleeve; 5. Locking block; 6. L-shaped rod; 7. Adhesive plate; 8. Inner extension brush; 9. Outer extension brush; 10. T-slot; 11. T-block; 12. Slider; 13. Pressing groove; 14. Spring; 15. Slide rod; 16. Rotating handle; 17. Rubber pad. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0018] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0019] Please see Figures 1 to 3 The present invention provides a rotary scraper filter cartridge cleaning structure, which includes: a bonding plate 7, a rotating plate 1, an outer scraper 2, an inner scraper 3, and an adjustment and extension mechanism.
[0020] A rubber pad 17 is fixedly connected to the lower surface of the bonding plate 7. A rotating plate 1 is rotatably connected to the center of the upper surface of the bonding plate 7. The rotating plate 1 is a telescopic plate with locking and fixing. A rotating handle 16 is fixedly connected to the outer edge of the upper surface of the rotating plate 1. An outer scraper 2 is fixedly connected to the lower surface of the rotating plate 1 through a bonding mechanism. The bonding mechanism includes a sliding rod 15, a slider 12 and a spring 14. A pressing groove 13 is opened on the lower surface of the rotating plate 1. A sliding rod 15 is fixedly connected between the inner walls of the two sides of the pressing groove 13. A slider 12 is slidably connected to the inner wall of the pressing groove 13. The slider 12 passes through the sliding rod 15 and is slidably connected to it. A spring 14 is threaded on the outer side of the sliding rod 15. The two ends of the spring 14 abut against the side wall of the slider 12 and the inner wall of the pressing groove 13, respectively. The top end of the outer scraper 2 is fixedly connected to the slider 12.
[0021] It should be noted that, in practical use, the entire device is first placed on one end of the filter cartridge to be cleaned via the bonding plate 7. The rubber pad 17 on the lower surface of the bonding plate 7 can increase the friction between the device and the contact surface, providing support for the subsequent rotary cleaning operation and reducing the risk of the device sliding or tipping over during operation.
[0022] During dust removal, the operator can apply rotational force by holding the handle 16, causing the rotating plate 1 to rotate around the center of the mating plate 7. This allows the outer scraper 2, connected to the rotating plate 1, to perform circumferential cleaning around the outer wall of the filter cartridge, thereby cleaning the dust on the surface of the filter cartridge. Since the rotating plate 1 is a telescopic plate with locking mechanism, when dealing with filter cartridges of different diameters, the user can first unlock the rotating plate 1, adjust its extension length to match the radial position of the outer scraper 2 with the radius of the current filter cartridge, and then lock it. This allows the device to be used with filter cartridges of various specifications, improving the applicability of the device.
[0023] Furthermore, the device is equipped with a fitting mechanism. During operation, the spring 14 located in the pressing groove 13 continuously applies an outward elastic force to the slider 12, allowing the outer scraper 2 to fit against the filter cartridge surface. When the rotating plate 1 encounters slight unevenness or concentricity deviation on the filter cartridge surface during rotation, the slider 12 can slide radially within a small range on the slide rod 15, ensuring that the outer scraper 2 maintains a certain pressure throughout the cleaning path, thus improving the dust removal effect on the filter cartridge. It also effectively avoids the situation where excessive local pressure due to rigid contact may scratch the filter cartridge surface, improving the reliability and safety of the dust removal operation.
[0024] A sliding sleeve 4 is slidably connected to the rod of the rotating plate 1, and a locking block 5 for locking is threadedly connected to the upper surface of the sliding sleeve 4. The bottom end of the locking block 5 penetrates the inner wall of the sliding sleeve 4 and contacts the rotating plate 1. An L-shaped rod 6 is fixedly connected to the lower surface of the sliding sleeve 4, and an inner scraper 3 is fixedly connected to the bottom end of the L-shaped rod 6.
[0025] It should be noted that the structure of the L-shaped rod 6 allows it to lower the position of the inner scraper 3 from the horizontal plane of the rotating plate 1 into the inner cavity of the filter cartridge. Furthermore, by changing the position of the sliding sleeve 4 on the rotating plate 1, the distance of the inner scraper 3 connected to it can be directly adjusted, so that the inner scraper 3 can be adapted to filter cartridges with different inner diameters, improving the applicability of the device. Moreover, by turning the locking block 5, the sliding sleeve 4 is securely locked in the current position, ensuring that the position of the inner scraper 3 will not shift during the subsequent rotation cleaning process, thus ensuring the stability of the cleaning.
[0026] The bottom ends of the outer scraper 2 and the inner scraper 3 are provided with an adjustment and extension mechanism. The adjustment and extension mechanism includes an inner extension brush 8 and an outer extension brush 9. The bottom ends of the outer scraper 2 and the inner scraper 3 are both provided with T-shaped grooves 10, and the top ends of the inner extension brush 8 and the outer extension brush 9 are both fixedly connected with matching T-shaped blocks 11. The T-shaped blocks 11 are slidably engaged in the T-shaped grooves 10. The bottom ends of the inner extension brush 8 and the outer extension brush 9 are also provided with T-shaped grooves 10.
[0027] It should be noted that, in order to meet the dust removal needs of filter cartridges of different lengths, the device is equipped with an adjustable extension mechanism, which can flexibly adjust the working length of the outer scraper 2 and the inner scraper 3 to ensure the cleaning of the filter cartridge. When a longer filter cartridge needs to be cleaned, the extension with the T-block 11 only needs to be slid into the port of the T-slot 10 to complete the sliding engagement, thus accommodating filter cartridges of various lengths and improving the practicality of the device.
[0028] In summary, this utility model provides a rotary scraper filter cartridge cleaning structure. The position of the outer scraper 2 is adjusted by a retractable rotating plate 1, and the position of the inner scraper 3 is adjusted by a sliding sleeve 4 that can slide on the rotating plate 1 and is fixed by a locking block 5, thereby achieving adaptability to filter cartridges with different inner and outer diameters.
[0029] To accommodate filter cartridges of different lengths, the device is equipped with an adjustment and extension mechanism. By utilizing the sliding engagement of the T-slot 10 and the T-block 11, the inner extension brush 8 and the outer extension brush 9 can be conveniently connected in series, thereby flexibly adjusting the effective working length of the brush.
[0030] In addition, the outer scraper 2 is connected to the rotating plate 1 through a fitting mechanism containing a spring 14, ensuring that it can elastically fit the surface of the filter cartridge, which not only improves the uniformity of dust removal, but also avoids the damage that may be caused by rigid contact.
[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A rotary scraper filter cartridge cleaning structure, characterized in that, include: Lamination board (7); Rotating plate (1), the center of the upper surface of the bonding plate (7) is rotatably connected to the rotating plate (1); An external scraper (2) is fixedly connected to the lower surface of the rotating plate (1) by a bonding mechanism. The inner scraper (3) is slidably connected to the rod of the rotating plate (1), and the upper surface of the sliding sleeve (4) is threaded with a locking block (5) for locking. The bottom end of the locking block (5) penetrates the inner wall of the sliding sleeve (4) and contacts the rotating plate (1). The lower surface of the sliding sleeve (4) is fixedly connected with an L-shaped rod (6), and the bottom end of the L-shaped rod (6) is fixedly connected with the inner scraper (3). Adjustment extension mechanism: The bottom ends of the outer scraper (2) and the inner scraper (3) are provided with adjustment extension mechanism.
2. The rotary scraper filter cartridge cleaning structure according to claim 1, characterized in that, The bonding mechanism includes a slide rod (15), a slider (12), and a spring (14). The lower surface of the rotating plate (1) is provided with a pressing groove (13). The slide rod (15) is fixedly connected between the inner walls of the two sides of the pressing groove (13), and the slider (12) is slidably connected to the inner wall of the pressing groove (13). The slider (12) passes through the slide rod (15) and is slidably connected to it. The outer side of the slide rod (15) is connected with a spring (14). The two ends of the spring (14) abut against the side wall of the slider (12) and the inner wall of the pressing groove (13), respectively. The top end of the outer scraper (2) is fixedly connected to the slider (12).
3. The rotary scraper filter cartridge cleaning structure according to claim 1, characterized in that, The rotating plate (1) is a telescopic plate with locking mechanism.
4. The rotary scraper filter cartridge cleaning structure according to claim 1, characterized in that, The adjustment and extension mechanism includes an inner extension brush (8) and an outer extension brush (9). The bottom ends of the outer scraper (2) and the inner scraper (3) are provided with T-shaped grooves (10), and the top ends of the inner extension brush (8) and the outer extension brush (9) are fixedly connected with matching T-shaped blocks (11). The T-shaped blocks (11) are slidably engaged in the T-shaped grooves (10).
5. The rotary scraper filter cartridge cleaning structure according to claim 4, characterized in that, The bottom ends of both the inner extension brush (8) and the outer extension brush (9) are provided with T-slots (10).
6. The rotary scraper filter cartridge cleaning structure according to claim 1, characterized in that, A handle (16) is fixedly connected to the outer edge of the upper surface of the rotating plate (1).
7. The rotary scraper filter cartridge cleaning structure according to claim 1, characterized in that, A rubber pad (17) is fixedly connected to the lower surface of the bonding plate (7).