Split type quick release blowback rotary wing
By incorporating a split-type quick-release backflushing rotary blade within the filter element, the problem of time-consuming and labor-intensive installation and disassembly of the rotary blade device is solved, enabling rapid installation and disassembly, improving the working environment, and enhancing maintenance efficiency and equipment reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SAFE FILTRATION SYST CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-24
AI Technical Summary
Existing rotary vane devices are cumbersome, time-consuming, and labor-intensive to install and dismantle, and operate in harsh environments, which affects maintenance efficiency and equipment reliability.
It adopts a split quick-release structure, with the backflush rotary blade set inside the filter element. It can be quickly connected to the air supply pipe through the air inlet port, and a double locking structure is formed by the locking wrench and locking pin to achieve quick installation and disassembly.
It simplifies the installation and disassembly process, reduces the skill requirements for operators, improves the working environment, and enhances maintenance efficiency and equipment reliability.
Smart Images

Figure CN224541310U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a filtration system component, and more particularly to a split quick-release backflushing rotary blade. Background Technology
[0002] In existing technology, the rotary wing dust removal back-blowing device is a back-blowing dust removal device installed inside the filter cartridge. Its main function is to thoroughly clean the accumulated dust between the folds on the windward side of the filter cartridge through rotational back-blowing, thereby enabling the filter cartridge dust collector to maintain stable operation under low resistance conditions for a long time. This device typically includes components such as a central shaft, rotating connecting parts, and air pipes, which can generate back-blowing airflow inside the filter cartridge to achieve the dust removal effect.
[0003] However, existing rotary vane devices have significant drawbacks in their installation and disassembly processes. Specifically, existing devices require first connecting and securing the rotary vane to the main unit, and then fitting the filter cartridge onto the outside of the rotary vane. This installation method is cumbersome, time-consuming, and labor-intensive, demanding a high level of skill from on-site installers. Furthermore, due to the limited space for rotary vane installation and disassembly, and the dusty working environment, frontline workers often face difficulties and harsh conditions when replacing filter cartridges, leading to low maintenance efficiency and impacting the overall reliability of the equipment and user experience. Utility Model Content
[0004] A split-type quick-release backflushing rotary vane, characterized in that the backflushing rotary vane is disposed inside the filter element, and the backflushing rotary vane includes: a central shaft, a rotating connector, and an air pipe. The upper end of the central shaft is connected to the rotating connector, and a bearing is provided between the rotating connector and the central shaft. The rotating connector can rotate around the central shaft. The upper end of the air pipe is fixedly connected to the rotating connector, and multiple vertically arranged air holes are provided on the side of the air pipe. The lower end of the central shaft passes through the center of a connecting plate, and the lower end of the air pipe is fixedly connected to the connecting plate. An air inlet port is provided on the upper surface of the rotating connector, and the air inlet port is connected to the air pipe for air exchange.
[0005] This utility model provides a split quick-release back-blowing rotary blade by setting the back-blowing rotary blade inside the filter element and adopting a split quick-release structure. This solves the problem that existing rotary blade devices require connecting the rotary blade device to the main unit first and then putting the filter cartridge on the outside of the rotary blade device, which leads to time-consuming and labor-intensive installation and disassembly, high skill requirements, and harsh working environment.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: A split-type quick-release backflush rotary vane is provided. The backflush rotary vane is installed inside the filter element and includes: a central shaft, a rotary connector, and an air pipe. The upper end of the central shaft is connected to the rotary connector, and a bearing is provided between the rotary connector and the central shaft. The rotary connector can rotate around the central shaft. The upper end of the air pipe is fixedly connected to the rotary connector, and multiple vertically arranged air holes are provided on the side of the air pipe. The lower end of the central shaft passes through the center of the connecting plate, and the lower end of the air pipe is fixedly connected to the connecting plate. An air inlet port is provided on the upper surface of the rotary connector, and the air inlet port is connected to the air pipe for air exchange.
[0007] Further configuration involves connecting the air inlet port to the air delivery interface of the air delivery pipe for air exchange.
[0008] Further configuration: the air inlet port is embedded in the center of the top cover of the filter element and protrudes from the outer end face of the top cover of the filter element; the central shaft passes through the bottom cover of the filter element and is fixed to the filter element by a locking nut; a flat bearing is provided between the bottom cover and the locking nut.
[0009] This invention provides a double-locking scooter folding device by setting a locking wrench and a locking pin between the upper tube connecting seat and the lower tube connecting seat to form a double-locking structure. It can reliably lock in both folded and unfolded states, effectively preventing single lock failure, reducing the risk of loosening and mis-locking during use, thereby improving the safety and durability of the scooter. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the first embodiment of the present invention; Figure 2 This is a schematic diagram of the second embodiment of the present invention; In the diagram: 1. Backflush rotary blade; 2. Air inlet port; 3. Central shaft; 4. Rotary connector; 5. Air pipe; 6. Air outlet; 7. Connecting plate; 8. Air supply pipe; 9. Air supply interface. Filter element, top cover of filter element 91, filter layer 92, bottom cover 93, plane bearing 94, locking nut 95. Detailed Implementation
[0011] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0012] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0013] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views of the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0015] like Figures 1-2 As shown in Figure 1, this utility model discloses a split-type quick-release backflushing rotary blade. The backflushing rotary blade is located inside the filter element and includes a central shaft 3, a rotating connector 4, and an air vent 5. The upper end of the central shaft 3 is connected to the rotating connector 4 via a bearing, allowing the rotating connector 4 to rotate freely around the central shaft 3. The upper end of the air vent 5 is fixedly connected to the rotating connector 4, and the side of the air vent 5 has multiple vertically arranged air holes 6 for spraying backflushing airflow to clean the accumulated dust between the folds on the windward side of the filter element. The lower end of the central shaft 3 passes through the center of the connecting plate 7, and the lower end of the air vent 5 is fixedly connected to the connecting plate 7. The upper surface of the rotating connector 4 has an air inlet port 2, which communicates with the interior of the air vent 5 to receive airflow from the external air supply pipe 8. The air inlet port 2 connects with the air supply interface 81 of the air supply pipe 8 to ensure smooth airflow transmission.
[0016] Furthermore, the air inlet 2 is embedded in the center of the upper cover 91 of the filter element and protrudes from the outer end face of the upper cover 91 to connect with the air supply pipe 8. The central shaft 3 passes through the bottom cover 93 of the filter element and is fixed to the filter element by a locking nut 95. A plane bearing 94 is provided between the bottom cover 93 and the locking nut 95 to reduce rotational resistance and improve rotational stability. In Embodiment 1, the two air pipes 5 are arranged in an H-shape with consistent vertical distance to ensure uniform distribution of backflushing airflow and improve dust removal efficiency.
[0017] Embodiment 2 of this utility model provides a split-type quick-release backflushing rotary blade, the structure of which is shown in Figure 2. Compared with Embodiment 1, the difference in Embodiment 2 lies in the arrangement of the air pipes 5. In Embodiment 2, the two air pipes 5 are arranged in a V-shape, wider at the top and narrower at the bottom. This design makes the backflushing airflow more concentrated in the lower part of the filter element, which is suitable for working conditions where there is a lot of dust accumulation in the lower part of the filter element. The rest of the structure is the same as that in Embodiment 1, including the configuration and connection method of the central shaft 3, rotating connector 4, air inlet port 2, air blowing hole 6, connecting plate 7, air supply pipe 8, air supply interface 81, filter element top cover 91, bottom cover 93, plane bearing 94 and locking nut 95.
[0018] During installation, the back-blowing rotary blade, as a single module, quickly connects to the air inlet 81 of the air supply pipe 8 via the air inlet port 2. The filter element is fixed to the central shaft 3 by the locking nut 95, making installation simple and quick, eliminating the need to fix the rotary blade device before installing the filter cartridge. For disassembly, simply loosen the locking nut 95 to remove the back-blowing rotary blade along with the filter element. This simple operation reduces the difficulty of working in confined spaces and dusty environments. During operation, the back-blowing airflow enters the air inlet port 2 through the air supply pipe 8, and exits from the air outlet 6 through the air vent pipe 5, pushing the rotating connector 4 to rotate around the central shaft 3, achieving comprehensive cleaning of the filter element's windward folds.
[0019] This utility model's split-type quick-release back-blowing rotary blade, through optimized structural design, achieves rapid installation and disassembly, reduces operational skill requirements, improves the working environment, enhances maintenance efficiency and equipment reliability, and is suitable for the dust removal needs of various cartridge dust collectors.
[0020] This utility model provides a split quick-release back-blowing rotary blade by setting the back-blowing rotary blade inside the filter element and adopting a split quick-release structure. This solves the problem that existing rotary blade devices require connecting the rotary blade device to the main unit first and then putting the filter cartridge on the outside of the rotary blade device, which leads to time-consuming and labor-intensive installation and disassembly, high skill requirements, and harsh working environment.
[0021] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no conflict in the mechanism, the features in the embodiments disclosed in the present invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A split-type quick-release reverse-blowing rotary blade, characterized in that, The backflush rotary blade is installed inside the filter element. The backflush rotary blade includes: a central shaft (3), a rotary connector (4), and an air pipe (5). The upper end of the central shaft (3) is connected to the rotary connector (4). A bearing is provided between the rotary connector (4) and the central shaft (3). The rotary connector (4) can rotate around the central shaft (3). The upper end of the air pipe (5) is fixedly connected to the rotary connector (4). Multiple air holes (6) are arranged vertically on the side of the air pipe (5). The lower end of the central shaft (3) passes through the center of the connecting plate (7). The lower end of the air pipe (5) is fixedly connected to the connecting plate (7). An air inlet port (2) is provided on the upper surface of the rotary connector (4). The air inlet port (2) is connected to the air pipe (5).
2. The split-type quick-release reverse-blowing rotary blade according to claim 1, characterized in that, The air inlet (2) is connected to the air outlet (81) of the air supply pipe (8) for air supply.
3. A split-type quick-release reverse-blowing rotary blade according to claim 2, characterized in that, The air inlet (2) is embedded in the center of the top cover (91) of the filter element and protrudes from the outer end face of the top cover (91) of the filter element. The central shaft (3) passes through the bottom cover (93) of the filter element and is fixed to the filter element by the locking nut (95). A plane bearing (94) is provided between the bottom cover (93) and the locking nut (95).