Tricking filtration device with carbon dioxide removal and biological filtration functions
The servo motor-driven bevel gear and lead screw mechanism enables rotary distribution of the water inlet pipe, solving the problem of uneven water flow in the trickling filter and improving the utilization efficiency of the filter media and the purification effect of the biological filter media, especially the removal capacity of carbon dioxide and ammonia nitrogen.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional trickling filters suffer from uneven water distribution, with some areas being too wet and others too dry, which affects the filtration and biochemical reaction capabilities of the filter media.
The bevel gear and lead screw mechanism driven by a servo motor allows the water inlet pipe to move laterally during rotation, achieving a spiral or fan-shaped dynamic coverage and ensuring that water penetrates evenly into the filter bed.
It effectively avoids local water accumulation and drying out of the filter bed, improves the utilization efficiency of the filter media, and enhances the purification effect of the biological filter media, especially the removal of carbon dioxide and the decomposition of ammonia nitrogen.
Smart Images

Figure CN224091703U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a trickling filter device, and more particularly to a trickling filter device that simultaneously performs carbon dioxide removal and biological filtration. Background Technology
[0002] A trickling filter is a highly efficient water treatment device widely used in aquariums, wastewater treatment, and water purification. It achieves water purification, oxygenation, and removal of harmful substances (such as ammonia nitrogen and carbon dioxide) through multiple processes including physical filtration, biodegradation, and gas exchange.
[0003] Traditional trickling filters typically use a fixed inlet pipe or a simple reciprocating motion structure, where the water flow is distributed only in a certain direction or range. This results in some areas of the filter bed being too wet and others being too dry, affecting the filter media's ability to fully perform filtration, adsorption, or biochemical reactions.
[0004] It should be noted that the above content falls within the scope of the technical knowledge of the utility model owner and does not necessarily constitute prior art. Utility Model Content
[0005] In order to solve the above problems, the purpose of this utility model is to provide a trickling filter device that simultaneously has carbon dioxide removal and biological filtration functions;
[0006] To achieve the above objectives, this utility model proposes a trickling filter device that simultaneously performs carbon dioxide removal and biological filtration, comprising a trickling filter cartridge:
[0007] A filter bed disc is fixedly installed at the top of the inside of the drip filter cartridge;
[0008] A connecting column is fixedly installed at the middle position of the top of the filter bed disc. A sleeve shaft is rotatably installed at the top of the connecting column. A first bevel gear is fixedly installed on the outer wall of the sleeve shaft. A servo motor is fixedly installed at the bottom of the connecting column. A connecting shaft is inserted inside the sleeve shaft. The output end of the servo motor is fixedly connected to the bottom end of the inner wall of the L-shaped frame plate via the connecting shaft. A rotating shaft is rotatably installed on one side of the inner wall of the L-shaped frame plate. A second bevel gear is fixedly installed at one end of the rotating shaft. The second bevel gear meshes with the first bevel gear. A connecting frame is fixedly installed at the middle position of one side of the L-shaped frame plate. The inner wall of the connecting frame and the bottom of one side of the L-shaped frame plate are rotatably connected to both ends of the lead screw.
[0009] In one example, the top of the connecting frame is provided with a strip groove, which is slidably connected to the top of the main frame plate. The lead screw is threadedly connected to the main frame plate. A pipe rack is fixedly provided at the bottom of the main frame plate, and a water inlet pipe is inserted and fixedly provided at the top of the pipe rack.
[0010] In one example, a water outlet pipe is connected to the bottom of one side of the drip filter cartridge, and an aerator is fixed to the bottom of the inner wall of the drip filter cartridge.
[0011] In one example, a biological filter media layer is fixedly provided at the bottom of the inside of the drip filter cartridge.
[0012] In one example, the sum of the lengths of the L-shaped frame and the connecting frame is less than the inner diameter of the drip filter cartridge.
[0013] The trickling filter device proposed in this invention, which simultaneously possesses carbon dioxide removal and biological filtration capabilities, can bring the following beneficial effects:
[0014] This invention utilizes a servo motor to rotate a connecting frame and an L-shaped frame plate on a filter bed disc. A first bevel gear fitted on the outer wall of the fixed shaft meshes with a second bevel gear at one end of the rotating shaft, causing a lead screw to rotate. The lead screw is threadedly connected to the main frame plate. Therefore, the inlet pipe can move laterally along the connecting frame during rotation, achieving a rotary distribution of water. This allows for dynamic coverage of the entire filter bed disc in a spiral, fan-shaped, or zoned manner, effectively preventing localized water accumulation and drying, and ensuring more even water penetration into the filter bed. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0016] Fig. 1 This is a schematic diagram of the structure of this utility model;
[0017] Fig. 2 This is a schematic diagram of the structure of the biological filter media layer and filter bed disc of this utility model;
[0018] Fig. 3 This is a structural schematic diagram of the L-shaped frame and connecting frame of this utility model;
[0019] Fig. 4 This is a schematic diagram of the bottom of the inner wall of the drip filter cartridge of this utility model.
[0020] In the diagram: 1. Trickling filter cartridge; 2. Connecting column; 3. Outlet pipe; 4. Biological filter media layer; 5. Filter bed disc; 6. Servo motor; 7. First bevel gear; 8. L-shaped frame plate; 9. Sleeve shaft; 10. Second bevel gear; 11. Rotating shaft; 12. Connecting frame; 13. Strip chute; 14. Pipe rack; 15. Inlet pipe; 16. Lead screw; 17. Main frame plate; 18. Connecting shaft; 19. Aerator. Detailed Implementation
[0021] To more clearly illustrate the overall concept of this utility model, a detailed description is provided below with reference to the accompanying drawings.
[0022] like Figs. 1-4 As shown, an embodiment of this utility model proposes a trickling filter device that simultaneously performs carbon dioxide removal and biofiltration, including a trickling filter cartridge 1:
[0023] The top of the inside of the drip filter cartridge 1 is fixedly provided with a filter bed plate 5;
[0024] A connecting column 2 is fixedly provided at the middle position of the top of the filter bed disc 5. A sleeve shaft 9 is rotatably provided at the top of the connecting column 2. A first bevel gear 7 is fixedly provided on the outer wall of the sleeve shaft 9. A servo motor 6 is fixedly provided at the bottom of the connecting column 2. A connecting shaft 18 is inserted inside the sleeve shaft 9. The output end of the servo motor 6 is fixedly connected to the bottom end of the inner wall of the L-shaped frame plate 8 via the connecting shaft 18. A rotating shaft 11 is rotatably provided on one side of the inner wall of the L-shaped frame plate 8. A second bevel gear 10 is fixedly provided at one end of the rotating shaft 11. The second bevel gear 10 meshes with the first bevel gear 7. A connecting frame 12 is fixedly provided at the middle position of one side of the L-shaped frame plate 8. The inner wall of the connecting frame 12 and the bottom of one side of the L-shaped frame plate 8 are rotatably connected to both ends of the lead screw 16.
[0025] Specifically, the top of the connecting frame 12 is provided with a strip groove 13, which is slidably connected to the top of the main frame plate 17. The lead screw 16 is threadedly connected to the main frame plate 17. The bottom of the main frame plate 17 is fixedly provided with a pipe rack 14, and the top of the pipe rack 14 is fixedly provided with a water inlet pipe 15.
[0026] Specifically, a water outlet pipe 3 is connected to the bottom of one side of the drip filter 1, and an aerator 19 is fixedly installed at the bottom of the inner wall of the drip filter 1.
[0027] Specifically, a biological filter material layer 4 is fixedly provided at the bottom of the inside of the drip filter cartridge 1.
[0028] Specifically, the sum of the lengths of the L-shaped frame plate 8 and the connecting frame 12 is less than the inner diameter of the drip filter cartridge 1.
[0029] Working principle: The inlet pipe 15 is installed on the pipe rack 14 and fixedly connected to the main frame plate 17. The inlet pipe 15 is connected to the outlet of the external water pump through a connecting hose. The water flows along the inlet pipe 15 into the space above the filter bed plate 5, ready for drip filtration distribution. The servo motor 6 is installed at the bottom of the connecting column 2, and its output end is connected to the connecting shaft 18. The connecting shaft 18 passes through the sleeve shaft 9 and is fixedly connected to the bottom of the inner wall of the L-shaped frame plate 8. The servo motor 6 drives the connecting shaft 18 to rotate, thereby causing the L-shaped frame plate 8 to rotate around the axis of the connecting column 2. The sleeve shaft 9 is fixedly installed on the connecting column. At the top of 2, a first bevel gear 7 is provided on its outer wall, and a second bevel gear 10 meshing with it is fixedly installed at one end of a rotating shaft 11. The rotation of the rotating shaft 11 drives the lead screw 16 at one end to rotate synchronously. The two ends of the lead screw 16 are rotatably connected to the L-shaped frame plate 8 and the connecting frame 12 respectively, and the middle part is threadedly connected to the main frame plate 17. As the lead screw 16 rotates, the main frame plate 17 slides laterally on it along the thread direction. The pipe rack 14 and the water inlet pipe 15 are fixed on the main frame plate 17. Therefore, under the drive of the lead screw 16, the water inlet pipe 15 moves laterally as a whole. At the same time, due to the L-shaped frame plate 8 The connecting frame 12 rotates around the axis of the connecting column 2, and the movement trajectory of the inlet pipe 15 presents a spiral path or a fan-shaped dynamic trajectory. After the water flows out of the inlet pipe 15, it is evenly sprinkled onto the filter bed disc 5. The dripping water flows through the filter bed disc 5 into the biological filter media layer 4 below it. This layer is filled with high surface area microbial filter media for biological purification of the water. At this time, the aerator 19 continues to work to provide oxygen to the filter media layer, enhance the metabolic efficiency of aerobic microorganisms, and effectively decompose ammonia nitrogen, sulfides and organic matter in the water. At the same time, during the infiltration and aeration process, some dissolved CO2 gas in the water can be released, achieving a preliminary degassing effect.
[0030] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.
[0031] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A trickling filter device that simultaneously performs carbon dioxide removal and biological filtration, comprising a trickling filter cartridge (1): The top of the drip filter cartridge (1) is fixedly provided with a filter bed plate (5). Its features are: A connecting column (2) is fixedly provided at the middle position of the top of the filter bed disc (5). A sleeve shaft (9) is rotatably provided at the top of the connecting column (2). A first bevel gear (7) is fixedly provided on the outer wall of the sleeve shaft (9). A servo motor (6) is fixedly provided at the bottom of the connecting column (2). A connecting shaft (18) is inserted inside the sleeve shaft (9). The output end of the servo motor (6) is fixedly connected to the bottom end of the inner wall of the L-shaped frame plate (8) and the connecting shaft (18). A rotating shaft (11) is rotatably provided on one side of the inner wall of the L-shaped frame plate (8). A second bevel gear (10) is fixedly provided at one end of the rotating shaft (11). The second bevel gear (10) meshes with the first bevel gear (7). A connecting frame (12) is fixedly provided at the middle position of one side of the L-shaped frame plate (8). The inner wall of the connecting frame (12) and the bottom of one side of the L-shaped frame plate (8) are rotatably connected to both ends of the lead screw (16).
2. The trickling filter device according to claim 1, which simultaneously possesses carbon dioxide removal and biological filtration capabilities, is characterized in that: The top of the connecting frame (12) is provided with a strip groove (13), the strip groove (13) is slidably connected to the top of the main frame plate (17), the lead screw (16) is threadedly connected to the main frame plate (17), the bottom of the main frame plate (17) is fixedly provided with a pipe rack (14), and the top of the pipe rack (14) is fixedly provided with a water inlet pipe (15).
3. A trickling filter device that simultaneously performs carbon dioxide removal and biological filtration according to claim 1, characterized in that: The bottom of one side of the drip filter (1) is connected to a water outlet pipe (3), and an aerator (19) is fixedly installed at the bottom of the inner wall of the drip filter (1).
4. A trickling filter device that simultaneously performs carbon dioxide removal and biological filtration according to claim 1, characterized in that: The bottom of the drip filter cartridge (1) is fixedly provided with a biological filter material layer (4).
5. A trickling filter device that simultaneously performs carbon dioxide removal and biological filtration according to claim 1, characterized in that: The sum of the lengths of the L-shaped frame (8) and the connecting frame (12) is less than the inner diameter of the drip filter cartridge (1).