Composite ecological filter tank for treating rural domestic sewage

By designing a multi-layered filtration structure and an inclined design for the composite ecological filter bed, the problem of easy clogging of filtration equipment in rural domestic sewage treatment was solved, achieving efficient sewage filtration and convenient filter layer maintenance, thus improving sewage treatment efficiency.

CN224001075UActive Publication Date: 2026-03-17广东省吉喆百年绿色科技工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

In existing rural domestic sewage treatment systems, filtration equipment is prone to clogging, leading to decreased filtration efficiency and affecting the effectiveness of use.

Method used

A composite ecological filter bed was designed, comprising a grid cover, filter plates, a gravel filter layer, a sand filter layer, and an activated carbon filter layer. Through the multi-layer filtration structure and inclined design, combined with the easy disassembly of the grid cover, multiple filtrations and convenient cleaning of sewage can be achieved.

Benefits of technology

It effectively prevents the accumulation and clogging of impurities inside the filter bed, increases the filtration area, ensures sewage filtration efficiency, facilitates regular inspection and replacement of the filter layer, and improves the effect of sewage treatment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a compound ecological filter tank for treating rural domestic sewage, which relates to the technical field of sewage treatment and comprises a filter tank main body, a grid cover plate is hinged to one side of the top of the filter tank main body, a bearing strip is detachably mounted on one side of the inner wall of the filter tank main body, and the top of the bearing strip abuts against a fixing frame. A fixing plate is detachably mounted at one end of the fixing frame, a filter plate is detachably mounted on one side of the fixing plate, a first partition plate abuts against the bottom of the fixing plate, first fixing columns are symmetrically and detachably mounted on the top of the first partition plate, a gravel filter layer abuts against one side of the first partition plate, and a gravel filter layer abuts against one side of the gravel filter layer. According to the composite ecological filter tank for treating rural domestic sewage, the grid cover plate is conveniently opened on the filter tank main body, the overall structure is simple, the filter plate and the fixed cover plate can be conveniently detached in the filter tank main body, and the filter plate and the interior of the filter tank main body can be conveniently and respectively cleaned.
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Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a composite ecological filter for treating rural domestic sewage. Background Technology

[0002] Rural domestic sewage mainly refers to the sewage generated by rural residents' daily activities, including drainage from toilet flushing, washing, bathing, and kitchens. Rural domestic sewage treatment involves removing and degrading harmful substances and environmentally polluting components from domestic sewage to render it harmless.

[0003] Existing methods of directly filtering rural domestic sewage often result in the filtration outlets being clogged by garbage, reducing filtration efficiency and causing adverse effects on users. To address the shortcomings of existing technologies, we propose a composite ecological filter for treating rural domestic sewage. Utility Model Content

[0004] The main purpose of this invention is to provide a composite ecological filter for treating rural domestic sewage, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A composite ecological filter for treating rural domestic sewage includes a filter body. A grid cover is hinged to one side of the top of the filter body. A support strip is detachably installed on one side of the inner wall of the filter body. A fixing frame is abutted at the top of the support strip. A fixing plate is detachably installed at one end of the fixing frame. A filter plate is detachably installed on one side of the fixing plate. A first partition is abutted at the bottom of the fixing plate. A first fixing column is symmetrically and detachably installed on the top of the first partition. A gravel filter layer is abutted on one side of the first partition. A sand filter layer is abutted on one side of the gravel filter layer. An activated carbon filter layer is abutted on one side of the sand filter layer. A second partition is abutted on one side of the activated carbon filter layer. A second fixing column is symmetrically and detachably installed on the top of the second partition.

[0007] Preferably, the top of the second partition plate abuts against a fixed cover plate, the top of the fixed cover plate is symmetrically provided with a first through hole, the first through hole of the fixed cover plate is inserted into one end of the second fixed column, one side of the bottom of the fixed cover plate abuts against the top of the gravel filter layer, one side of the bottom of the fixed cover plate abuts against the top of the sand filter layer, and one side of the bottom of the fixed cover plate abuts against the top of the activated carbon filter layer.

[0008] Preferably, the inner wall of the filter body abuts against the outer side of the fixed frame, a drain outlet is provided on one side of the inner wall of the filter body, and the filter plate is inclinedly arranged inside the filter body.

[0009] Preferably, the top of the fixing plate is symmetrically provided with a second through hole, and the inside of the second through hole of the fixing plate is inserted into one end of the first fixing post.

[0010] Preferably, an inlet is provided on the upper part of one side of the first partition, the outer side of the first partition is detachably installed to the inner wall of the filter body, the first partition and the second partition have the same shape, the outer side of the second partition is detachably installed to the inner wall of the filter body, and an outlet is provided in the middle section of one side of the second partition.

[0011] Preferably, the bottom of the gravel filter layer abuts against one side of the bottom of the inner wall of the filter body, the bottom of the inner wall of the filter body abuts against the bottom of the sand and gravel filter layer, and the bottom of the inner wall of the filter body abuts against the bottom of the activated carbon filter layer.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In this utility model, the grid cover plate can be easily opened on the filter body, the overall structure is simple, the filter plate and the fixed cover plate can be easily removed inside the filter body, which makes it convenient to clean the filter plate and the inside of the filter body separately, preventing the accumulation of impurities and blockage of sewage in the filter body over a long period of time. After the fixed cover plate is removed, it is convenient to inspect and replace the gravel filter layer, sand filter layer and activated carbon filter layer.

[0014] 2. In this utility model, the grid cover plate is used in conjunction with the filter plate to filter larger debris in the sewage. The inclined design of the filter plate in the filter tank body increases the sewage filtration area, and the debris filtered by the filter plate will slide off the inclined filter plate to prevent complete blockage of the filter plate, thus effectively ensuring that the filter plate can filter sewage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the disassembled structure of the grid cover plate of this utility model;

[0017] Figure 3 This is a schematic diagram of the disassembled structure of the grid cover plate of this utility model;

[0018] Figure 4 This is a side sectional view of the filter body of this utility model.

[0019] In the diagram: 1. Filter body; 2. Grid cover; 3. Supporting strip; 4. Fixing frame; 5. Fixing plate; 6. Filter plate; 7. First partition; 8. First fixing column; 9. Crushed stone filter layer; 10. Sand and gravel filter layer; 11. Activated carbon filter layer; 12. Second partition; 13. Second fixing column; 14. Fixing cover. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Example 1, as Figures 1-3 As shown, a composite ecological filter for treating rural domestic sewage involves discharging rural domestic sewage onto a grid cover 2. The sewage passes through the grid cover 2, where larger volumes of debris are filtered out. The sewage, after initial filtration by the grid cover 2, then enters the filter body 1 and is placed on a filter plate 6 within a fixed frame 4 supported by support strips 3. The filter plate 6 performs secondary filtration on the sewage, removing smaller volumes of debris. Because the filter plate 6 is inclined within the filter body 1, smaller volumes of debris filtered above it accumulate at the angle between the filter plate 6 and the filter body 1. The filter plate 6 continues to filter the sewage. After a period of use, the accumulated debris on the filter plate 6 can be easily removed by lifting the grid cover 2 on the filter body 1, ensuring the effective filtration area of ​​the filter plate 6.

[0022] Example 2, as Figure 2 and Figure 4 As shown, a composite ecological filter for treating rural domestic sewage, after being filtered by filter plate 6, enters the space between the filter body 1 and the first partition 7. The water, after secondary filtration between the filter body 1 and the first partition 7, accumulates until it reaches the level of the inlet on the first partition 7. This secondary filtered water then enters the space between the first partition 7 and the second partition 12 within the filter body 1 through the inlet on the first partition 7. Due to the drop between the inlet on the first partition 7 and the bottom of the inner wall of the filter body 1, this drop forces the secondary filtered water to permeate through the gravel filter layer 9, the sand filter layer 10, and the activated carbon filter layer 11 until the water between the first partition 7 and the second partition 12 accumulates to the outlet on the second partition 12. The water filtered through the gravel filter layer 9, the sand filter layer 10, and the activated carbon filter layer 11 is then discharged into the space between the filter body 1 and the second partition 12 for sedimentation. The sedimented water is discharged when it reaches the height of the outlet on the filter body 1.

[0023] It should be noted that this utility model is a composite ecological filter for treating rural domestic sewage. In use, the rural domestic sewage is filtered twice by the grid cover plate 2 and the filter plate 6, filtering out impurities in the sewage to facilitate subsequent treatment. After the water from the second filtration accumulates between the filter body 1 and the first partition 7 to the height of the inlet of the first partition 7, it is discharged between the first partition 7 and the second partition 12. Utilizing the drop between the inlet of the first partition 7 and the bottom of the inner wall of the filter body 1, the water is fed into the first partition 7 through the inlet of the first partition 7. Water from the second partition 12 permeates through the gravel filter layer 9, sand filter layer 10, and activated carbon filter layer 11, thereby filtering the water fed into the first partition 7. There is also a certain drop between the outlet of the second partition 12 and the inlet of the first partition 7, so the filtered water is discharged through the outlet of the second partition 12 into the space between the second partition 12 and the filter body 1 for sedimentation. After the water in the filter body 1 and the second partition 12 accumulates to the height of the drain outlet of the filter body 1, it is discharged, thus completing the purification treatment of rural domestic sewage.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A composite ecological filter for treating rural domestic sewage, comprising a filter main body (1), characterized in that The filter tank body (1) top side is hinged with a grid cover plate (2), the filter tank body (1) inner wall side is detachably installed with a supporting strip (3), the supporting strip (3) top abuts with a fixed frame (4), the fixed frame (4) one end is detachably installed with a fixed plate (5), the fixed plate (5) one side is detachably installed with a filter plate (6), the fixed plate (5) bottom abuts with a first partition (7), the first partition (7) top is symmetrically detachably installed with a first fixed column (8), the first partition (7) one side abuts with a gravel filter layer (9), the gravel filter layer (9) one side abuts with a sandstone filter layer (10), the sandstone filter layer (10) one side abuts with an activated carbon filter layer (11), the activated carbon filter layer (11) one side abuts with a second partition (12), the second partition (12) top is symmetrically detachably installed with a second fixed column (13).

2. The composite ecological filter for treating rural domestic sewage according to claim 1, characterized in that The second partition (12) top abuts with a fixed cover plate (14), the fixed cover plate (14) top is symmetrically provided with a first through hole, the first through hole of the fixed cover plate (14) is inserted with one end of the second fixed column (13), the fixed cover plate (14) bottom one side abuts with the top of the gravel filter layer (9), the fixed cover plate (14) bottom one side abuts with the top of the sandstone filter layer (10), the fixed cover plate (14) bottom one side abuts with the top of the activated carbon filter layer (11).

3. The composite ecological filter for treating rural domestic sewage according to claim 1, characterized in that The filter tank body (1) inner wall abuts with the outside of the fixed frame (4), the filter tank body (1) inner wall side is provided with a drainage port, the filter plate (6) is inclinedly arranged in the filter tank body (1).

4. The composite ecological filter for treating rural domestic sewage according to claim 1, characterized in that The fixed plate (5) top is symmetrically provided with a second through hole, the second through hole of the fixed plate (5) is inserted with one end of the first fixed column (8).

5. The composite ecological filter for treating rural domestic sewage according to claim 1, characterized in that The first partition (7) one side upper portion is provided with a water inlet, the first partition (7) outside is detachably installed with the filter tank body (1) inner wall, the first partition (7) and the second partition (12) are the same shape, the second partition (12) outside is detachably installed with the filter tank body (1) inner wall, the second partition (12) one side middle part is provided with a water outlet.

6. The composite ecological filter for treating rural domestic sewage according to claim 1, characterized in that The gravel filter layer (9) bottom abuts with the filter tank body (1) inner wall bottom side, the filter tank body (1) inner wall bottom side abuts with the sandstone filter layer (10) bottom, the filter tank body (1) inner wall bottom side abuts with the activated carbon filter layer (11) bottom.