A filter pipe for precipitation
Through its multi-layer filtration structure and anti-corrosion coating design, it solves the problem of traditional water filter pipes being easily compacted and washed away, achieving efficient and stable water treatment and impact resistance, making it suitable for environments with strict requirements for drainage water quality.
Patent Information
- Application Number
- CN202522639426.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-12
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-12
AI Technical Summary
Traditional water filtration pipes are prone to compaction during long-term use, resulting in reduced or ineffective permeable area. Furthermore, the single-layer filter layer is easily washed away, leading to filtration failure and an inability to effectively handle strong water flow impacts.
The system employs a multi-layer filtration structure, including an outer layer of natural zeolite, a middle layer of solid disinfectant bricks, and an inner layer of ion exchange resin. Combined with activated carbon filter plates and sealing rings, it forms a graded filtration and buffering mechanism, enhancing rigid support and impact resistance. Furthermore, the system's stability is ensured through an anti-corrosion coating and an aluminum alloy door.
It achieves long-term water permeability stability and high-efficiency filtration, can handle strong water flow impacts, provides deep chemical purification, improves the system's impact resistance and reliability, and is easy to maintain.
Smart Images

Figure CN224925758U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of drainage technology, and in particular relates to a water filter pipe specifically for precipitation. Background Technology
[0002] In geotechnical engineering projects such as foundation pit dewatering and slope drainage, filter pipes are core components that ensure dewatering efficiency and project safety. Currently, most common filter pipes on the market adopt a structure in which circular filter holes are directly drilled into the PVC or HDPE pipe wall, or simply wrapped with a layer of nylon mesh or geotextile as a filter layer.
[0003] However, this type of traditional structure has significant drawbacks: First, the simple wrap-around filter layer lacks rigid support. Under the long-term action of backfill soil or external ground pressure, the filter layer is easily compacted and adhered to the pipe wall, which greatly reduces its effective water permeability area or even completely loses its water conduction capacity. Second, a single filter layer is easily destroyed by water shock waves when the water flow is too large or strong, leading to filtration failure. Utility Model Content
[0004] The purpose of this invention is to provide a water filtration pipe specifically for precipitation, in order to solve the problems existing in the prior art.
[0005] To achieve the above objectives, the present invention adopts a water filtration pipe specifically for precipitation, comprising a column pipe, a transfer pipe at the top of the column pipe, a lower flange at the end of the column pipe away from the transfer pipe, an upper flange at the end of the transfer pipe away from the column pipe, a compartment opening through the side of the column pipe, a support bracket at the inner circumference of the column pipe, multiple filter plates at the top of the support bracket, the multiple filter plates being fixedly connected by connecting columns, an openable and closable compartment door at the compartment opening, a processing connector at one side of the column pipe, a filter cylinder threadedly connected to the processing connector, a filter element inside the filter cylinder, and partitions opposite each other at the inner sidewall of the column pipe, with the end of the filter element away from the filter cylinder extending into the upper part of the partition inside the column pipe.
[0006] Preferably, the filter element has a three-layer filtration structure: the outer layer is natural zeolite, the middle layer is a solid disinfectant brick, and the inner layer is an ion exchange resin.
[0007] Preferably, the filter plate is an activated carbon filter plate with a sealing ring embedded in its edge, and the support is circular.
[0008] Preferably, the outer periphery of the treatment joint, column tube, and adapter tube are all coated with an anti-corrosion coating.
[0009] Preferably, the door is an aluminum alloy plate adapted to the shape of the compartment opening, and its inner perimeter is inlaid with a foamed silicone sealing strip.
[0010] Preferably, the column tube and the adapter tube are made of unplasticized polyvinyl chloride or high-density polyethylene, and the column tube and the adapter tube are integrally molded by injection molding.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: The support bracket inside the column tube of this utility model provides rigid support for the multi-layer filter plates, preventing the filter layers from being compacted and ensuring the long-term stability of the water permeability channel. The use of multiple filter plates connected in series forms a graded filtration and buffering mechanism. When encountering strong water flow impact, the multi-layer structure can dissipate energy step by step, preventing single-layer filter media from being destroyed by excessive instantaneous pressure, which greatly improves the impact resistance and reliability of the system. The design of the side compartment and the openable compartment door makes it extremely convenient to inspect, clean or replace the internal filter plates. At the same time, the side filter cylinder can be filled with a special filter element to achieve further chemical purification of water quality, expand the function, and form a highly efficient, stable and easy-to-maintain water filtration system that integrates physical interception, impact resistance and chemical treatment. Attached Figure Description
[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 A frontal perspective view of a water filtration pipe specifically designed for use in precipitation. Figure 2 A side perspective view of a water filter pipe specifically designed for use in precipitation. Figure 3 A three-dimensional view of the internal structure of a water filtration pipe specifically designed for precipitation. Figure 4 This is a structural diagram of the filter plate and connecting column.
[0014] In the above figures, 1. Column tube, 2. Transfer tube, 3. Lower flange, 4. Upper flange, 5. Bin opening, 6. Bin door, 7. Support bracket, 8. Filter plate, 9. Processing joint, 10. Filter cylinder, 11. Connecting column, 12. Partition plate, 13. Filter element. Detailed Implementation
[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0016] 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. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0017] Example 1, such as Figure 1-4 As shown, the specific design of the above key components is described below: A water filtration pipe for precipitation includes a column pipe 1, a transfer pipe 2 is provided above the column pipe 1, a lower flange 3 is provided at the section of the column pipe 1 away from the transfer pipe 2, an upper flange 4 is provided at the end of the transfer pipe 2 away from the column pipe 1, a compartment opening 5 is provided through the side of the column pipe 1, a support bracket 7 is provided on the inner circumference of the column pipe 1, multiple filter plates 8 are provided above the support bracket 7, the multiple filter plates 8 are fixedly connected to each other by a connecting column 11, a closable compartment door 6 is provided on the compartment opening 5, a treatment connector 9 is provided on one side of the column pipe 1, a filter cylinder 10 is threadedly connected to the treatment connector 9, a filter element 13 is provided inside the filter cylinder 10, a partition 12 is provided opposite to the inner side wall of the column pipe 1, and the end of the filter element 13 away from the filter cylinder 10 extends into the partition 12 inside the column pipe 1.
[0018] The filter element 13 has a three-layer filtration structure: the outer layer is natural zeolite, the middle layer is solid disinfectant brick, and the inner layer is ion exchange resin.
[0019] This system employs a combined physical and chemical purification and filtration approach, working from the outside in and from coarse to fine. When water enters through the column tube 1 and reaches the filter element on the filter cartridge 10, it first passes through the outer layer of natural zeolite. Its porous structure primarily adsorbs suspended solids, colloids, and ammonia nitrogen, completing preliminary physical filtration and ion exchange. Subsequently, the water permeates into the middle layer of solid disinfectant bricks. This filter element slowly dissolves, continuously releasing trace amounts of disinfectant components, such as chlorine-based substances, effectively killing bacteria, algae, and other microorganisms in the flowing water, achieving disinfection and sterilization. Finally, the purified water flows through the inner layer of ion exchange resin. The resin, through ion exchange reactions, precisely removes calcium and magnesium from the water, softening the water and removing dissolved harmful substances such as heavy metal ions, completing deep chemical purification. Finally, the clean water exits from the transfer pipe 2. This invention, through its three-layer filter element design 13, achieves a multi-functional integrated solution that simultaneously performs physical filtration, disinfection, and deep chemical purification in a single device, significantly improving the quality of the effluent. Natural zeolite acts as a pre-filter, effectively protecting the subsequent two stages of precision filters and extending their lifespan. Solid disinfectant bricks provide long-lasting, slow-release sterilization, preventing biofilm formation, while ion exchange resin ensures the chemical safety of the water. This structure upgrades traditional filter pipes, which can only intercept sediment, into a mobile water treatment station, making it particularly suitable for sensitive environments with strict requirements for wastewater quality, such as dewatering pits near water sources, achieving both rainwater resource utilization and environmentally friendly discharge.
[0020] The filter plate 8 is an activated carbon filter plate with a sealing ring embedded in its edge, and the support 7 is circular. The outer periphery of the treatment connector 9, column tube 1, and adapter tube 2 are all coated with an anti-corrosion coating. The door 6 is an aluminum alloy plate adapted to the shape of the opening 5, and its inner periphery is embedded with a foamed silicone sealing strip. The column tube 1 and adapter tube 2 are made of unplasticized polyvinyl chloride or high-density polyethylene, and the column tube 1 and adapter tube 2 are integrally molded by injection molding. This utility model achieves efficient filtration and long-term stable operation. Water enters through the column tube 1 and flows through the multi-layer activated carbon filter plate 8. Through its microporous structure, fine particles, organic matter, and odors are adsorbed. At the same time, the sealing ring at the edge and the circular support 7 fit tightly to ensure that the water flows completely through the filter plate 8. Then, the filter cartridge 10 connected to the treatment connector 9 undergoes deep purification. The injection-molded UPVC or HDPE pipe body, together with the outer anti-corrosion coating, forms the main structural defense line, effectively resisting the corrosion and wear of water flow. The aluminum alloy door 6 and its foamed silicone sealing strip form a strong yet flexible second seal, jointly ensuring the internal sealing of the system under pressure and preventing the leakage of unfiltered water.
[0021] This invention significantly improves the overall performance and service life of water filtration pipes. The combination of activated carbon filter plate 8, sealing ring, and support bracket 7 achieves efficient physical adsorption while solving the leakage problem caused by poor sealing of traditional filter layers, resulting in higher filtration efficiency. Furthermore, the use of UPVC and HDPE materials combined with injection molding eliminates the risk of leakage and structural weaknesses at pipe joints. Their inherent corrosion resistance, combined with the external anti-corrosion coating, provides dual protection, greatly enhancing the pipe's durability in complex chemical environments. The combination of aluminum alloy door 6 and foamed silicone sealing strip ensures excellent sealing performance, convenient maintenance, and high reliability. The overall design gives the pipe superior filtration capacity, excellent sealing performance, and a long service life.
[0022] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A water filtration pipe specifically for precipitation, characterized in that, The device includes a column tube, a transfer pipe is provided above the column tube, a lower flange is provided at the end of the column tube away from the transfer pipe, an upper flange is provided at the end of the transfer pipe away from the column tube, a compartment opening is provided through the side of the column tube, a support bracket is provided on the inner circumference of the column tube, multiple filter plates are provided above the support bracket, the multiple filter plates are fixedly connected to each other by connecting columns, a closable compartment door is provided on the compartment opening, a processing joint is provided on one side of the column tube, a filter cylinder is threadedly connected to the processing joint, a filter element is provided inside the filter cylinder, a partition is provided opposite to the inner side wall of the column tube, and the end of the filter element away from the filter cylinder extends into the upper part of the partition inside the column tube.
2. A water filtration pipe for precipitation protection according to claim 1, characterized in that, The filter element has a three-layer filtration structure: the outer layer is natural zeolite, the middle layer is solid disinfectant brick, and the inner layer is ion exchange resin.
3. A water filtration pipe for precipitation as described in claim 2, characterized in that, The filter plate is an activated carbon filter plate with a sealing ring embedded on its edge, and the support is circular.
4. A water filtration pipe for precipitation as described in claim 3, characterized in that, The outer periphery of the treatment joint, column tube, and adapter tube are all coated with an anti-corrosion coating.
5. A water filter pipe for precipitation protection according to claim 4, characterized in that, The door is an aluminum alloy plate that matches the shape of the opening, and its inner perimeter is inlaid with a foamed silicone sealing strip.
6. A water filter pipe for precipitation protection according to claim 5, characterized in that, The column tube and the adapter tube are made of unplasticized polyvinyl chloride or high-density polyethylene, and are integrally molded by injection molding.
