Multi-layer staggered screen wastewater filtration device
By designing the support and filter components, the problem of easy clogging of the filter screen is solved, achieving efficient rainwater filtration and impurity collection through multi-layer filters, thus improving rainwater utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGSHUI KELIN (LUOYANG) ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-26
AI Technical Summary
The primary filter of a multi-layered, interlaced mesh wastewater filtration device is prone to clogging, leading to reduced filtration efficiency. In particular, during rainwater collection, the grates at the rainwater drain openings are easily covered by fallen leaves, reducing the rainwater collection and utilization rate.
The design incorporates support and filtration components, including a slider, push-pull rod, perforated scraper, and multi-layer filter screens. The slider slides on the slide rail, which drives the perforated scraper to clean fallen leaves. The combination of stainless steel and ductile iron filter screens enables multi-layer filtration and impurity collection.
It effectively cleans fallen leaves from the filter screen surface, improves rainwater filtration efficiency, ensures that rainwater meets the standards for greening irrigation water, prevents water accumulation, and improves rainwater collection and utilization rate.
Smart Images
Figure CN224270441U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, and more specifically, to a multi-layer staggered filter screen wastewater filtration device. Background Technology
[0002] Multi-layer staggered filter screen wastewater filtration device is a highly efficient water treatment equipment. It achieves step-by-step filtration and purification of wastewater through a combination of filter screens with different levels and pore sizes, enabling the wastewater to meet reuse standards. This device effectively removes suspended solids through physical filtration and is often used as a pre-process unit for biological treatment or advanced treatment.
[0003] A search revealed Chinese patent CN219355461U, which discloses a multi-stage filtration municipal sewage discharge device. The device includes a municipal sewage pipe with a filtration and discharge assembly located below the outlet. The filtration and discharge assembly comprises a water-receiving ring, an installation ring, a drain pipe, a filter assembly, and a drive assembly. The drain pipe is located below the water-receiving ring, and the installation ring is located at the center of the water-receiving ring. This multi-stage filtration municipal sewage discharge device utilizes a first filter plate for preliminary filtration, followed by second and third filter plates for further filtration. This effectively achieves multi-stage filtration, improves filtration quality, ensures sewage treatment precision, and allows for adjustments to enhance filtration efficiency. It prevents filter blockage, which can lead to poor filtration efficiency. The device facilitates cleaning of the first, second, and third filter plates to prevent mesh blockage and allows for the collection and treatment of residual impurities.
[0004] However, in actual use, the primary filter of the multi-layer staggered screen wastewater filtration device is easily clogged, which reduces the filtration efficiency of the entire device. For example, during rainy seasons, when collecting and purifying rainwater runoff from roads, the grates at the rainwater drain openings are easily covered by fallen leaves, preventing rainwater from entering the sewers and causing it to run off the ground, thus reducing the rainwater collection and utilization rate. Therefore, there is a need to provide a multi-layer staggered screen wastewater filtration device that can solve the above problems. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-layer staggered filter screen wastewater filtration device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer staggered filter screen type sewage filtration device, including a water collection tank, with water outlet pipes connected through both sides of the water collection tank, and support components fixedly connected to both sides of the water collection tank.
[0007] The support assembly includes multiple connecting plates, each with a circular base fixedly connected to one end. A support column is welded to the top of the circular base, and a slide rail is fixedly connected to the top of the support column. A slider is slidably connected inside the slide rail. A push-pull rod is fixedly connected to one side of the slider, and a wristband is fixedly connected to the top of the push-pull rod. A Z-shaped connecting rod is fixedly connected to the other side of the slider, and a perforated scraper is fixedly connected to one side of the Z-shaped connecting rod. A filter assembly is provided inside the water collection tank.
[0008] As a further description of the above technical solution:
[0009] The filter assembly includes a filter basket, a lifting rod fixedly connected to the inner side of the filter basket, a rain grate at the top of the lifting rod, and a leaf collection box fixedly connected to the rear side of the rain grate. The lifting rod facilitates the removal of the filter basket for regular cleaning and maintenance, and the leaf collection box is used to collect fallen leaves swept from the rain grate for regular cleaning by workers.
[0010] As a further description of the above technical solution:
[0011] An annular protrusion is fixedly connected to the inside of the water collection tank. A filter basket is slidably connected to the annular protrusion. A rain grate is slidably connected to the top of the water collection tank. The annular protrusion can support and fix the filter basket. The sliding connection is detachable, which facilitates the rain grate and the filter basket to slide up and down.
[0012] As a further description of the above technical solution:
[0013] The rain grate has multiple arc-shaped holes inside, which can initially filter out leaves and branches. The filter basket has multiple square holes on its bottom and outer wall, which can filter out pebbles and mud. The leaf collection box has multiple circular holes on its bottom, which can filter rainwater and prevent water accumulation.
[0014] As a further description of the above technical solution:
[0015] The slide rail has multiple rectangular grooves inside, and sealing plates are fixedly connected to both ends of the slide rail. The top and bottom of the slider have grooves to facilitate fixing the working trajectory of the slider and realize the slider sliding back and forth inside the slide rail.
[0016] As a further description of the above technical solution:
[0017] The bottom of the perforated scraper has multiple slots. When it rains, the perforated scraper can filter out a large amount of rainwater from the fallen leaves on the rain grate. The bottom of the perforated scraper is in close contact with the top of the rain grate, which can achieve the effect of cleaning the fallen leaves on the surface of the rain grate.
[0018] As a further description of the above technical solution:
[0019] The filter basket is made of stainless steel, which is corrosion-resistant. The rain grate is made of ductile iron, which has high surface hardness and is not easily worn or deformed after long-term use.
[0020] The technical effects and advantages of this utility model are as follows:
[0021] 1. By setting up a support assembly, the water collection tank is fixedly connected to the ground to a circular base via multiple connecting plates. When fallen leaves cover the surface of the rain grate during rain, the slider can be moved inside the track by pulling the hand ring and the push-pull rod. The slider drives the hollow scraper, which is fixedly connected to the Z-shaped connecting rod, to slide on the top of the rain grate. The hollow scraper can filter a large amount of rainwater on the fallen leaves and push the fallen leaves into the leaf collection box. Compared with the existing technology, this method achieves the effect of cleaning fallen leaves from the surface of the rain grate and can collect the fallen leaves cleaned from the rain grate, making it convenient for workers to clean regularly.
[0022] 2. By setting up a filtration component, rainwater flows in from the top of the rain grate during rainfall. The rain grate can filter out impurities such as leaves and branches from the rainwater. Then, the pre-filtered rainwater flows into the filter basket, which can filter out impurities such as pebbles and mud from the rainwater. The rainwater after multi-layer filtration meets the standards for irrigation water in parks and green spaces. Multiple circular holes at the bottom of the leaf collection box can filter rainwater and prevent water accumulation. Compared with existing technologies, the multi-layer rainwater filtration device combining the rain grate and the filter basket achieves a graded filtration effect for rainwater. The staggered layout of the rain grate and the filter basket improves the rainwater filtration efficiency. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0024] Figure 2 This is an enlarged view of part of the structure of this utility model.
[0025] Figure 3 This is a partial structural schematic diagram of the present invention.
[0026] Figure 4 This is a schematic diagram showing the partial structural separation of this utility model.
[0027] Figure 5 This is a schematic diagram of the working structure of this utility model.
[0028] The attached diagram is labeled as follows: 1. Water collection tank; 2. Water outlet pipe; 3. Connecting plate; 4. Circular base; 5. Support column; 6. Slide rail; 7. Slider; 8. Push-pull rod; 9. Hand ring; 10. Z-shaped connecting rod; 11. Hollow scraper; 12. Filter basket; 13. Lifting rod; 14. Rain grate; 15. Leaf collection box; 16. Annular protrusion; 17. Sealing plate. Detailed Implementation
[0029] 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.
[0030] As attached Figure 1-5 The multi-layered staggered filter screen wastewater filtration device shown includes a water collection tank 1, with water outlet pipes 2 connected through both sides of the water collection tank 1, and support components fixedly connected to both sides of the water collection tank 1.
[0031] The support assembly includes multiple connecting plates 3, each of which is fixedly connected to a circular base 4 at one end. A support column 5 is welded to the top of the circular base 4. A slide rail 6 is fixedly connected to the top of the support column 5. A slider 7 is slidably connected inside the slide rail 6. A push-pull rod 8 is fixedly connected to one side of the slider 7. A wristband 9 is fixedly connected to the top of the push-pull rod 8. A Z-shaped connecting rod 10 is fixedly connected to the other side of the slider 7. A hollow scraper 11 is fixedly connected to one side of the Z-shaped connecting rod 10. A filter assembly is provided inside the water collection tank 1.
[0032] In some embodiments, according to Figure 3-5 The filter assembly shown includes a filter basket 12, a lifting rod 13 fixedly connected to the inside of the filter basket 12, a rain grate 14 at the top of the lifting rod 13, and a leaf collection box 15 fixedly connected to the rear of the rain grate 14. The lifting rod 13 makes it easy to remove the filter basket 12 for regular cleaning and maintenance. The leaf collection box 15 is used to collect the fallen leaves swept from the rain grate 14 for regular cleaning by workers.
[0033] In some embodiments, according to Figure 3 and Figure 4 The water collection tank 1 shown has an annular protrusion 16 fixedly connected to its inner side. The annular protrusion 16 is slidably connected to a filter basket 12. A rain grate 14 is slidably connected to the top of the water collection tank 1. The annular protrusion 16 can support and fix the filter basket 12. The sliding connection is detachable, which makes it easy for the rain grate 14 and the filter basket 12 to slide up and down.
[0034] In some embodiments, according to Figure 3-5 The rain grate 14 shown has multiple arc-shaped holes inside, which can initially filter out leaves and branches. The filter basket 12 has multiple square holes on its bottom and outer wall, which can filter out pebbles and mud. The leaf collection box 15 has multiple round holes on its bottom, which can filter rainwater and prevent water accumulation.
[0035] In some embodiments, according to Figure 1 and Figure 2 The slide rail 6 shown has multiple rectangular grooves inside. Both ends of the slide rail 6 are fixedly connected to sealing plates 17. The top and bottom of the slider 7 are also provided with grooves to facilitate fixing the working trajectory of the slider 7 and realize the slider 7 sliding back and forth inside the slide rail 6.
[0036] In some embodiments, according to Figure 1 and Figure 3 As shown, the bottom of the perforated scraper 11 has multiple strip grooves. When cleaning fallen leaves, the perforated scraper 11 can filter out a large amount of rainwater on the fallen leaves. The bottom of the perforated scraper 11 is tightly attached to the top of the rain grate 14, which can achieve the effect of cleaning fallen leaves on the surface of the rain grate 14.
[0037] In some embodiments, according to Figure 3 and Figure 4 As shown, the filter basket 12 is made of stainless steel, which is corrosion-resistant. The rain grate 14 is made of ductile iron, which has high surface hardness and is not easily worn or deformed after long-term use.
[0038] The working principle of this utility model is as follows: During installation, the water collection tank 1 is placed in the rainwater sewer. The water collection tank 1 is fixedly connected to the ground by multiple connecting plates 3 and a circular base 4. When it rains, rainwater flows in from the top of the rain grate 14, which filters out leaves and branches. The pre-filtered rainwater then flows into the filter basket 12, which filters out pebbles and silt. The multi-layered filtered rainwater meets the standards for park greening irrigation water. The filtered rainwater collects inside the water collection tank 1 and flows out through the outlet pipe 2. During rainy periods, there are fallen leaves... When the rain grate 14 is covered, the slider 7 can be moved inside the slide rail 6 by pulling the hand ring 9 and the push-pull rod 8. The slider 7 drives the hollow scraper 11, which is fixedly connected to the Z-shaped connecting rod 10, to slide on the top of the rain grate 14. The hollow scraper 11 can filter a large amount of rainwater on the fallen leaves and push the fallen leaves into the leaf collection box 15, thus achieving the effect of cleaning the fallen leaves on the surface of the rain grate 14 and collecting the fallen leaves for easy manual cleaning. The leaf collection box 15, which has multiple circular holes at the bottom, can filter rainwater and prevent water accumulation.
Claims
1. A multi-layer staggered screen sewage filtering device, comprising a water collecting tank (1), characterized in that: Both sides of the water collection tank (1) are connected to water outlet pipes (2), and both sides of the water collection tank (1) are fixedly connected to support components: The support assembly includes multiple connecting plates (3), each of which is fixedly connected to a circular base (4) at one end. A support column (5) is welded to the top of the circular base (4), and a slide rail (6) is fixedly connected to the top of the support column (5). A slider (7) is slidably connected inside the slide rail (6). A push-pull rod (8) is fixedly connected to one side of the slider (7), and a wristband (9) is fixedly connected to the top of the push-pull rod (8). A Z-shaped connecting rod (10) is fixedly connected to the other side of the slider (7), and a hollow scraper (11) is fixedly connected to one side of the Z-shaped connecting rod (10). A filter assembly is provided inside the water collection tank (1).
2. The multi-layered staggered screen sewage filtration device of claim 1, wherein: The filter assembly includes a filter basket (12), a lifting rod (13) is fixedly connected to the inner side of the filter basket (12), a rain grate (14) is provided on the top of the lifting rod (13), and a leaf collection box (15) is fixedly connected to the rear side of the rain grate (14).
3. The multi-layered staggered screen sewage filter apparatus of claim 2, wherein: The water collection tank (1) is fixedly connected to an annular protrusion (16) on its inner side, and the annular protrusion (16) is slidably connected to a filter basket (12). The top of the water collection tank (1) is slidably connected to a rain grate (14).
4. The multi-layered staggered screen sewage filter apparatus of claim 2, wherein: The rain grate (14) has multiple arc-shaped holes inside, the filter basket (12) has multiple square holes at the bottom and on the outer wall, and the leaf collection box (15) has multiple circular holes at the bottom.
5. The multi-layer staggered screen sewage filter apparatus of claim 1, wherein: The slide rail (6) has multiple rectangular grooves inside, and both ends of the slide rail (6) are fixedly connected to edge sealing plates (17). The top and bottom of the slider (7) are both provided with grooves.
6. The multi-layer staggered filter screen wastewater filtration device according to claim 2, characterized in that: The bottom of the hollow scraper (11) is provided with multiple strip grooves, and the bottom of the hollow scraper (11) is closely attached to the top of the rain grate (14).
7. The multi-layered staggered screen sewage filter apparatus of claim 2, wherein: The filter basket (12) is made of stainless steel, and the rain grate (14) is made of ductile iron.