Sewage treatment filter with self-cleaning filter screen
By designing a wastewater treatment filter with a self-cleaning filter screen, a rotating component drives a cleaning component to thoroughly clean the filter cartridge, solving the problem of difficult-to-remove impurities from the filter screen and improving filtration efficiency and device stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI XIUYU ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-14
AI Technical Summary
Some impurities on the filter screen of existing sewage treatment filters are difficult to remove, resulting in unstable filtration efficiency and affecting continuous operation.
Design a wastewater treatment filter with a self-cleaning filter screen. The cleaning component is driven to rotate around the filter cartridge by a rotating component. Combined with the side scraper and cleaning brush, the filter cartridge is thoroughly cleaned to ensure no dead corners are cleaned.
It achieves comprehensive cleaning of the filter, improves the stability of filtration efficiency and the practicality of the device, reduces maintenance frequency, and extends service life.
Smart Images

Figure CN224485180U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, specifically a wastewater treatment filter with a self-cleaning filter screen. Background Technology
[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering, and is increasingly becoming a part of the daily lives of ordinary people.
[0003] Existing wastewater treatment filters often suffer from poor adhesion between their cleaning components and the filter cartridge surface, making it difficult to cover the entire cartridge and creating cleaning dead zones. This results in impurities adhering to the filter screen for extended periods, affecting the stability of filtration efficiency and causing inconvenience for continuous wastewater treatment operation. Therefore, we propose a wastewater treatment filter with a self-cleaning filter screen. Summary of the Invention
[0004] The purpose of this invention is to provide a wastewater treatment filter with a self-cleaning filter screen to solve the problem mentioned in the background art where some impurities adhere to the filter screen for a long time, affecting the stability of filtration efficiency and causing inconvenience to the continuous operation of wastewater treatment.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a sewage treatment filter with a self-cleaning filter screen, comprising: a filter, an outlet pipe provided on the outer surface of the filter, an inlet pipe provided on the side of the outer surface of the filter away from the outlet pipe, a sealing cover fixedly connected to the upper surface of the filter, a rotating component provided at the center of the sealing cover, a cleaning component fixedly connected to the outer surface of the rotating component, a filter cartridge provided on the outer surface of the cleaning component, the filter cartridge being disposed inside the filter, and the cleaning component cleaning the filter cartridge under the rotation drive of the rotating component.
[0006] The rotating component includes a support frame, which is fixedly connected to the upper surface of the sealing cover. A drive motor is fixedly connected to the center of the support frame, and a rotating rod is fixedly connected to the output end of the drive motor. A fixing block is fixedly connected to the bottom of the rotating rod, and a connecting rod is fixedly connected to the end of the fixing block away from the rotating rod. A fixing frame is fixedly connected to the outer surface of the connecting rod.
[0007] The connecting rods are evenly fixed to the outer surface of the fixed block in four groups, the rotating rod is fixed to the center of the fixed block through it, and the fixed block is fixed to the outer surface of the rotating rod in two groups, one above the other.
[0008] The cleaning component includes a limiting plate, which is fixedly connected to the outer surface of the fixing frame. A plug-in plate is movably connected inside the limiting plate, and a side scraper is fixedly connected to the side surface of the plug-in plate away from the limiting plate.
[0009] The end of the plug-in plate away from the limiting plate is fixedly connected to a connecting plate, and a cleaning brush is fixedly connected to the outer surface of the plug-in plate. The cleaning brush is movably connected to the inner wall of the filter cartridge.
[0010] The cleaning components are fixedly connected to the outer surface of the frame at an angle, and multiple sets of cleaning components are fixedly connected to the outer surface of the frame by rotation.
[0011] This utility model has at least the following beneficial effects:
[0012] 1. In use, this utility model, through the fixed connection between the drive motor and the rotating rod in the rotating assembly, and the transmission of the fixed block, connecting rod and fixed frame, can drive multiple sets of cleaning components that are distributed in a rotational symmetry to rotate around the filter cartridge; the side scraper in the cleaning assembly first scrapes off the thicker impurities on the surface of the filter cartridge, and the cleaning brush then removes the residual sticky impurities. The inclined design ensures full contact with the filter cartridge. Combined with the stable cooperation of the limiting plate and the plug plate, it achieves cleaning of the filter cartridge without dead angles, effectively improves impurity clogging, and ensures stable filtration efficiency.
[0013] 2. In use, the support frame in the rotating assembly provides stable support for the drive motor, and the rigid connection between the rotating rod and the fixed block ensures smooth power transmission. The cleaning assembly, fixed by the fixed frame and connecting rod, rotates synchronously with the rotating assembly, and the symmetrical distribution of multiple cleaning assemblies ensures balanced force distribution and reduces operational shaking. This structural design makes the self-cleaning process stable and reliable, requiring no frequent maintenance, thus improving the practicality and service life of the device. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of a partial connection between the cleaning component and the filter cartridge of this utility model.
[0016] Figure 3 This is a three-dimensional schematic diagram of the external appearance of the rotating component of this utility model;
[0017] Figure 4 This utility model Figure 3 Enlarged diagram of point A in the middle.
[0018] In the diagram: 1. Filter; 2. Outlet pipe; 3. Inlet pipe; 4. Sealing cap; 5. Rotating assembly; 51. Support frame; 52. Drive motor; 53. Rotating rod; 54. Fixing block; 55. Connecting rod; 56. Fixing frame; 6. Cleaning assembly; 61. Limiting plate; 62. Insertion plate; 63. Side scraper; 64. Connecting plate; 65. Cleaning brush; 7. Filter cartridge. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-4 This utility model provides a technical solution: a sewage treatment filter with a self-cleaning filter screen, comprising: a filter 1, an outlet pipe 2 provided on the outer surface of the filter 1, an inlet pipe 3 provided on the outer surface of the filter 1 away from the outlet pipe 2, a sealing cover 4 fixedly connected to the upper surface of the filter 1, a rotating component 5 provided at the center of the sealing cover 4, a cleaning component 6 fixedly connected to the outer surface of the rotating component 5, a filter cartridge 7 provided on the outer surface of the cleaning component 6, the filter cartridge 7 being disposed inside the filter 1, and the cleaning component 6 being able to effectively clean the filter cartridge 7 under the rotation drive of the rotating component 5.
[0021] In use, the fixed connection between the drive motor 52 and the rotating rod 53 in the rotating assembly 5, along with the transmission of the fixed block 54, connecting rod 55 and fixed frame 56, can drive multiple sets of rotatingly symmetrically distributed cleaning components 6 to rotate around the filter cartridge 7. The side scraper 63 in the cleaning component 6 first scrapes off the thicker impurities on the surface of the filter cartridge 7, and the cleaning brush 65 then removes the residual sticky impurities. The inclined design ensures full contact with the filter cartridge 7. Combined with the stable cooperation of the limiting plate 61 and the plug-in plate 62, it achieves thorough cleaning of the filter cartridge 7, effectively improves impurity blockage, and ensures stable filtration efficiency.
[0022] The rotating assembly 5 includes a support frame 51, which is fixedly connected to the upper surface of the sealing cover 4. A drive motor 52 is fixedly connected to the center of the support frame 51. A rotating rod 53 is fixedly connected to the output end of the drive motor 52. A fixing block 54 is fixedly connected to the bottom of the rotating rod 53. A connecting rod 55 is fixedly connected to the end of the fixing block 54 away from the rotating rod 53. A fixing frame 56 is fixedly connected to the outer surface of the connecting rod 55.
[0023] The connecting rods 55 are evenly fixedly connected to the outer surface of the fixing block 54 in four groups. The rotating rod 53 is fixedly connected through the center of the fixing block 54. The fixing block 54 is fixedly connected to the outer surface of the rotating rod 53 in two groups, one above the other. The cleaning component 6 includes a limiting plate 61, which is fixedly connected to the outer surface of the fixing frame 56. A plug-in plate 62 is movably connected inside the limiting plate 61. A side scraper 63 is fixedly connected to the side surface of the plug-in plate 62 away from the limiting plate 61.
[0024] A connecting plate 64 is fixedly connected to the end of the plug-in plate 62 away from the limiting plate 61. A cleaning brush 65 is fixedly connected to the outer surface of the plug-in plate 62, and the cleaning brush 65 is movably connected to the inner wall of the filter cartridge 7. The cleaning assembly 6 is fixedly connected to the outer surface of the fixing frame 56 in an inclined manner, and multiple sets of cleaning assemblies 6 are fixedly connected to the outer surface of the fixing frame 56 in a rotating manner.
[0025] In operation, in its initial state, filter 1 serves as the main container for wastewater treatment. The inlet pipe 3 on its outer surface is used to introduce the wastewater to be treated, and the outlet pipe 2 is used to discharge the filtered clean water, forming the basic flow channel for wastewater filtration. The sealing cap 4 is fixed to the upper surface of filter 1, sealing the container and preventing wastewater leakage, while also providing a mounting base for the rotating assembly 5. The filter cylinder 7 is vertically installed inside filter 1, its wall being a filter screen structure that intercepts impurities in the wastewater; it is the core component for filtration.
[0026] In the rotating assembly 5, the support frame 51 is fixed on the upper surface of the sealing cover 4 to stably support the drive motor 52; the output end of the drive motor 52 is fixedly connected to the rotating rod 53 to provide power for the entire cleaning process; the rotating rod 53 extends through the sealing cover 4 into the interior of the filter 1, and its bottom is connected to four evenly distributed connecting rods 55 through two sets of vertically distributed fixing blocks 54; the fixing bracket 56 at the end of the connecting rod 55 is used to install the cleaning assembly 6, forming a complete power transmission chain.
[0027] The cleaning components 6 are inclinedly connected to the fixing frame 56, and multiple sets are distributed in a rotationally symmetrical manner to ensure adaptation to the curvature of the inner wall of the filter cartridge 7. Among them, the limiting plate 61 is fixed to the outer surface of the fixing frame 56 to provide installation positioning for the plug-in plate 62 and ensure the stability of the cleaning components; the end of the plug-in plate 62 away from the limiting plate 61 is fixedly connected to the side scraper 63 on one side and the cleaning brush 65 on the other side. The two are connected by the connecting plate 64 to form an integral structure, and the bristles of the cleaning brush 65 are in close contact with the inner wall of the filter cartridge 7. A small gap is reserved between the edge of the side scraper 63 and the inner wall of the filter cartridge 7.
[0028] When the device treats wastewater, the wastewater to be filtered enters the filter 1 through the inlet pipe 3 and flows towards the filter cartridge 7 under water pressure. Impurities in the wastewater are intercepted on the outside of the filter cartridge 7 by the filter screen. The filtered clean water passes through the filter screen and enters the inside of the filter cartridge 7, and is finally discharged from the outlet pipe 2. As the filtration time increases, the impurities attached to the outside of the filter cartridge 7 gradually increase, which may affect the filtration efficiency. At this time, the self-cleaning function is activated.
[0029] During the self-cleaning process, the drive motor 52 starts, and the output torque is transmitted to the fixed block 54 through the rotating rod 53, driving the four sets of connecting rods 55 and the fixed frame 56 to rotate synchronously. The fixed frame 56 drives the cleaning component 6 to make a circular motion around the central axis of the filter cartridge 7: the side scraper 63 first contacts the impurity layer on the outside of the filter cartridge 7, scraping off the thicker and looser impurities; the cleaning brush 65 that follows removes the residual sticky impurities and fine particles through the friction of the bristles, ensuring that the filter screen surface is clean.
[0030] Because the cleaning components 6 are arranged in multiple groups with rotational symmetry and an inclined design, they can fully cover the entire outer surface of the filter cartridge 7 during rotation, avoiding cleaning dead corners. The cooperation between the limiting plate 61 and the plug-in plate 62 ensures that the cleaning brush 65 and the side scraper 63 always maintain stable contact with the inner wall of the filter cartridge 7, ensuring uniform cleaning force. The scraped-off impurities are deposited at the bottom of the filter 1 under the action of gravity. After completing self-cleaning, the filter cartridge 7 restores its filtration capacity, and the device continues to operate normally.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sewage treatment filter with self-cleaning screen, comprising: Filter, its characterized in that: the outer surface of the filter is provided with a water outlet pipe, the outer surface of the filter is away from the water inlet pipe of one side is provided with, the upper surface of the filter is fixedly connected with sealing cover, the center of sealing cover is provided with rotating assembly, the outer surface of rotating assembly is fixedly connected with cleaning assembly, the outer surface of cleaning assembly is provided with filter cartridge, filter cartridge is arranged in the inside of filter, cleaning assembly is driven under the rotation of rotating assembly to the filter cartridge is cleaned.
2. The sewage treatment filter with self-cleaning filter screen according to claim 1, characterized in that: The rotating assembly includes a support frame, the support frame is fixedly connected to the upper surface of the sealing cover, the center of the support frame is fixedly connected with the drive motor, the output end of the drive motor is fixedly connected with the rotating rod, the bottom of the rotating rod is fixedly connected with the fixed block, one end of the fixed block away from the rotating rod is fixedly connected with the connecting rod, the outer surface of the connecting rod is fixedly connected with the fixed frame.
3. The sewage treatment filter with self-cleaning screen according to claim 2, characterized in that: The connecting rod is evenly fixedly connected with four groups on the outer surface of the fixed block, the rotating rod is fixedly connected at the center of the fixed block, the fixed block is fixedly connected with two groups on the outer surface of the rotating rod.
4. The sewage treatment filter with self-cleaning screen according to claim 1, characterized in that: The cleaning assembly includes a limiting plate, the limiting plate is fixedly connected to the outer surface of the fixed frame, the inside of the limiting plate is movably connected with the plug-in plate, one end of the plug-in plate away from the limiting plate is fixedly connected with the side scraper on the side surface.
5. The sewage treatment filter with self-cleaning screen according to claim 4, characterized in that: The plug-in plate is fixedly connected with the connecting plate at one end away from the limiting plate, the outer surface of the plug-in plate is fixedly connected with the cleaning brush, and the cleaning brush is movably connected to the inner wall of the filter cartridge.
6. The sewage treatment filter with self-cleaning screen according to claim 1, characterized in that: The cleaning assembly is fixedly connected to the outer surface of the fixed frame in an inclined manner, and the cleaning assembly is fixedly connected to the outer surface of the fixed frame in a plurality of rotating manners.