Filter for Yellow River diversion drip irrigation
By designing a filter with two filter pipe sections and a filter cartridge assembly, the problem of difficulty in quickly cleaning impurities and replacing parts in existing drip irrigation filters has been solved, achieving the convenience of quick cleaning and replacement of filter components and improving irrigation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WATER RESOURCES RES INST OF SHANDONG PROVINCE
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-28
AI Technical Summary
Existing drip irrigation filters are difficult to clean quickly after a period of use, and filter components are inconvenient to replace, which affects irrigation efficiency.
A filter comprising two parallel filter tube sections and a filter cartridge assembly is designed. The filter cartridge assembly can be switched to enable quick cleaning and replacement of the filter elements. The high and low inlet and outlet design and the drain pipe structure facilitate the deposition and cleaning of impurities.
It enables quick cleaning and replacement of filter components without affecting irrigation, improving irrigation efficiency and convenience.
Smart Images

Figure CN224167105U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of irrigation, and in particular to a filter for drip irrigation using water diverted from the Yellow River. Background Technology
[0002] There are various agricultural irrigation methods, among which drip irrigation is the most water-saving, significantly improving water resource utilization and avoiding water waste. When using water from the Yellow River for irrigation, filtration is often required before drip irrigation to prevent clogging of the drip heads. However, existing filtration structures suffer from problems such as difficulty in cleaning impurities, inconvenience in replacing filter components, and the need to shut down the machine for cleaning after a period of use. This not only wastes time but also affects irrigation efficiency. Utility Model Content
[0003] To overcome the shortcomings of the prior art, this utility model provides a filter for drip irrigation using Yellow River water diversion, which allows for convenient and quick cleaning of filter impurities or replacement of filter components without affecting irrigation.
[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:
[0005] A filter for drip irrigation using Yellow River diversion includes two parallel filter pipe sections. The inlet end of each filter pipe section is connected to an inlet pipe, and the outlet end is connected to an outlet pipe. Each filter pipe section is connected to a filter cartridge assembly. Each filter cartridge assembly has a first valve connected to the filter pipe sections on both sides to switch the filtration. Each filter cartridge assembly includes an outer cylinder and an inner cylinder. The top and bottom ends of the outer cylinder are detachably connected to sealing end caps to position the inner cylinder within the outer cylinder. The side wall of the outer cylinder has an outer inlet and an outer outlet. The side wall of the inner cylinder has an inner inlet corresponding to the outer inlet and an inner outlet corresponding to the outer outlet. A filter element is provided in the inner cylinder between the inner inlet and the inner outlet to separate the inlet space and the outlet space. The filter element consists of multiple filter plates arranged along the outlet direction and filter cotton embedded between the filter plates. The bottom of the inlet space is also provided with filter holes.
[0006] Furthermore, the inner cylinder is provided with a positioning protrusion along the axial direction, and the outer cylinder is provided with a positioning groove that cooperates with the positioning protrusion.
[0007] Furthermore, the external water inlet is positioned higher than the external water outlet.
[0008] Furthermore, a drain pipe is connected to the sealing end cap at the bottom of the outer cylinder, and a second valve is provided on the drain pipe.
[0009] Furthermore, a hand-held portion is provided on the outside of the sealed end cap.
[0010] Furthermore, the sealing end cap is threadedly connected to the outer cylinder, and a sealing ring is installed between the two.
[0011] The advantages of this utility model using the above technical solution are:
[0012] 1. This Yellow River drip irrigation filter features two interchangeable filter sections and a filter cartridge assembly, allowing for timely cleaning of impurities after a period of use without affecting drip irrigation efficiency. Specifically, the filter element can be quickly removed by opening the sealed end cap for easy emptying of filtered impurities and cleaning. Additionally, the filter cotton can be quickly replaced as needed, making it convenient and efficient.
[0013] 2. The filter cartridge assembly of this application is designed with high and low external water inlets and outlets, which facilitates the deposition of impurities in the lower part of the water inlet space. The drain pipe and second valve allow for drainage before cleaning the filter cartridge assembly, enabling impurities in the filter pipe at the front of the assembly to flow with the water into the water inlet space. Cleaning can then be easily performed by simply removing the top cover. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0015] Figure 2 for Figure 1 Schematic diagram of the opening structure of the middle filter cartridge assembly;
[0016] Figure 3 for Figure 2 Schematic diagram of the inner cylinder (without filter cotton).
[0017] In the diagram, 1 is the filter section, 2 is the inlet pipe, 3 is the outlet pipe, 4 is the filter cartridge assembly, 5 is the first valve, 41 is the outer cylinder, 42 is the inner cylinder, 43 is the sealing end cap, 44 is the drain pipe, 45 is the second valve, 411 is the outer inlet, 412 is the outer outlet, 421 is the filter element, 422 is the inlet space, 423 is the outlet space, 424 is the filter hole, 425 is the inner inlet, 426 is the inner outlet, and 427 is the positioning protrusion. Detailed Implementation
[0018] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application; however, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.
[0019] like Figure 1-3As shown, in this embodiment, the filter for drip irrigation from the Yellow River includes two parallel filter pipe sections 1. The inlet end of the two filter pipe sections 1 is connected to the inlet pipe 2, and the outlet end is connected to the outlet pipe 3. Each filter pipe section 1 is connected to a filter cartridge assembly 4. Each filter cartridge assembly 4 has a first valve 5 connected to the filter pipe sections 1 on both sides to switch the filtration. Each filter cartridge assembly 4 includes an outer cylinder 41 and an inner cylinder 42. The top and bottom ends of the outer cylinder 41 are detachably connected to sealing end caps 43 to position the inner cylinder 42 inside the outer cylinder 41. The side wall of the 41 is provided with an external water inlet 411 and an external water outlet 412. The side wall of the inner cylinder 42 is provided with an internal water inlet 425 corresponding to the external water inlet 411 and an internal water outlet 426 corresponding to the external water outlet 412. A filter element 421 is provided in the inner cylinder 42 between the internal water inlet and the internal water outlet to separate the water inlet space 422 and the water outlet space 423. The filter element 421 is composed of multiple filter plates arranged along the water outlet direction and filter cotton embedded between the filter plates. The bottom of the water inlet space 422 is also provided with filter holes 424.
[0020] Working principle: When using one of the filter cartridge components 4 for filtration, water first enters the inlet space 422, passes through the filter element 421, and then enters the outlet space 423 before exiting through the outlet pipe. After filtration for a period of time, the first valve 5 switches to the other filter cartridge component. For the filter cartridge component to be cleaned, open the sealing end cover 42, remove the inner cylinder 42, and clean the filtered impurities or replace the filter cotton. The cleaning process is simple and quick, and installation is also convenient after cleaning.
[0021] Furthermore, in order to install the inner cylinder more accurately, a positioning protrusion 427 along the axial direction can be provided on the outside of the inner cylinder 42, and a positioning groove that cooperates with the positioning protrusion 427 can be provided inside the outer cylinder 41. After installation, the outer water inlet and the inner water inlet can be accurately aligned, and the outer water outlet and the inner water outlet can be accurately aligned, and there will be no misalignment during the filtration process.
[0022] Furthermore, in order to better filter out sediment, the external inlet 411 is set higher than the external outlet 412, so that more sediment can be deposited in the lower part of the inlet space.
[0023] Furthermore, in order to clean the filter cartridge assembly more quickly, a drain pipe 44 can be connected to the sealing end cap 43 at the bottom of the outer cylinder 41. The drain pipe 44 is equipped with a second valve 45. Before cleaning impurities, the water can be drained first, so that the residual water and impurities in the filter tube section can enter the inner cylinder, making cleaning more convenient and thorough.
[0024] Furthermore, in order to disassemble the sealing end cap more quickly and conveniently, a handle 431 is provided on the outside of the sealing end cap 43. The sealing end cap 43 is threadedly connected to the outer cylinder 41, making disassembly and assembly faster. By embedding a sealing ring inside the sealing end cap, a seal between it and the outer cylinder can be guaranteed after installation.
[0025] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.
[0026] Any aspects of this utility model not described in detail are known to those skilled in the art.
Claims
1. A filter for drip irrigation using water diverted from the Yellow River, characterized in that, The system includes two parallel filter pipe sections, with the inlet end of each section connected to an inlet pipe and the outlet end connected to an outlet pipe. Each filter pipe section is connected to a filter cartridge assembly. Each filter cartridge assembly has a first valve connected to the filter pipe sections on both sides to switch the filtration. Each filter cartridge assembly includes an outer cylinder and an inner cylinder. The top and bottom ends of the outer cylinder are detachably connected to sealing end caps to position the inner cylinder within the outer cylinder. The side wall of the outer cylinder has an outer inlet and an outer outlet. The side wall of the inner cylinder has an inner inlet corresponding to the outer inlet and an inner outlet corresponding to the outer outlet. A filter element is provided between the inner inlet and the inner outlet in the inner cylinder to separate the inlet space and the outlet space. The filter element consists of multiple filter plates arranged along the outlet direction and filter cotton embedded between the filter plates. The bottom of the inlet space also has filter holes.
2. The filter for drip irrigation using Yellow River diversion as described in claim 1, characterized in that, The inner cylinder is provided with a positioning protrusion along the axial direction, and the outer cylinder is provided with a positioning groove that cooperates with the positioning protrusion.
3. The filter for drip irrigation using Yellow River diversion as described in claim 1, characterized in that, The external water inlet is set higher than the external water outlet.
4. The filter for drip irrigation using Yellow River diversion as described in claim 1, characterized in that, A drain pipe is connected to the sealing end cap at the bottom of the outer cylinder, and a second valve is provided on the drain pipe.
5. The filter for drip irrigation using Yellow River diversion as described in claim 1, characterized in that, The sealed end cap is provided with a hand-held part.
6. The filter for drip irrigation using Yellow River diversion as described in claim 1, characterized in that, The sealing end cap is threadedly connected to the outer cylinder, and a sealing ring is installed between the two.