Filter
By introducing a three-stage filter assembly and a pressure monitoring device into the sprinkler, the problem of jamming and clogging caused by mud and sand impurities in the sprinkler was solved, extending the service life of the turbine and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WODAR (TIANJIN) AGRICULTURAL MACHINERY EQUIPMENT CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-24
AI Technical Summary
When sprinkler irrigation machines use water sources containing gravel and silt, it can easily cause the water turbine blades to jam and the nozzles to become clogged, affecting their service life and increasing maintenance costs.
Design a filter that includes a three-section filter assembly and a pressure monitoring device. The three-section filter assembly is set in the four-way body and can effectively filter out sand and gravel. The pressure monitoring device monitors pressure changes in real time and prompts when to clean the filter.
It effectively avoids water turbine blade jamming and nozzle clogging, extends the service life of the sprinkler, and reduces maintenance costs through a convenient cleaning mechanism.
Smart Images

Figure CN224156517U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of sediment filtration, and in particular to a filter. Background Technology
[0002] In the field of agricultural irrigation, sprinkler irrigation technology has been widely applied and developed. With the acceleration of agricultural modernization, sprinkler irrigation machines have become one of the important pieces of equipment for improving irrigation efficiency and conserving water resources. They can evenly spray water onto farmland, meeting the water needs of crop growth and playing a positive role in improving crop yield and quality. Especially in some large farms and arid regions, the use of sprinkler irrigation machines has greatly improved irrigation conditions and promoted the development of agricultural production.
[0003] However, for sprinkler irrigation systems, water sources that are unclean or contain impurities such as stones and silt can cause the turbine blades to seize up when the water flow carries these impurities, severely affecting the turbine's lifespan. Furthermore, when silt and other impurities reach the sprinkler heads, they can directly clog them, requiring frequent replacements, which not only reduces work efficiency but also increases operating costs. Utility Model Content
[0004] In order to increase the service life of the turbine of agricultural sprinkler irrigation machine, this application provides a filter.
[0005] The filter provided in this application adopts the following technical solution:
[0006] A filter includes a four-way body, a three-section filter assembly, a pressure monitoring device, and a removable plug. The four-way body has an inlet and an outlet at both ends of a horizontal pipe section. The three-section filter assembly is located inside a vertical pipe section of the four-way body. The three-section filter assembly includes a vertically arranged middle section filter, an upper section filter located near the outlet of the middle section filter and inclined towards the inlet, and a lower section filter located near the inlet of the middle section filter and inclined towards the inlet. The pressure monitoring device is detachably installed on the top of the four-way body, and the removable plug is installed on the bottom of the four-way body.
[0007] By adopting the above technical solutions, the three-section filter assembly can filter out sand and gravel without affecting the water flow, avoiding sand and gravel from causing the water turbine blades to jam and the nozzles to clog, thereby increasing the service life of the agricultural sprinkler irrigation machine's turbine; the pressure monitoring device is installed on the top of the four-way body, which can monitor the pressure at any time. When the pressure increases, it indicates that there is too much mud and sand, prompting that it needs to be cleaned; the detachable plug is installed at the bottom of the four-way body, which facilitates the cleaning of mud, sand and other impurities in the filter.
[0008] Optionally, the upper section filter screen is fixed to the inner wall of the four-way body near the outlet, and the lower section is connected to the top of the middle section filter screen. The lower section filter screen is fixed to the inner wall of the four-way body near the inlet, and the upper section is connected to the bottom of the middle section filter screen.
[0009] By adopting the above technical solution, the three-section filter assembly can divide the four-way body into an inlet area and an outlet area, so that the mud and sand are left in the inlet area to avoid the water turbine blades from being stuck and the nozzles from being blocked by stones and mud in the water flow. The pressure monitoring device on the top is connected to the inlet area and can monitor the pressure at any time. When the pressure increases, it can be determined that there is too much mud and sand, and the four-way body needs to be cleaned.
[0010] Optionally, the edges of the three-section filter assembly are fixed to the inner wall of the four-way body by snap-fit.
[0011] By adopting the above technical solution, the three-section filter assembly is securely installed within the four-way body, enabling it to reliably perform its filtration function. Simultaneously, this design facilitates disassembly, allowing for quick removal and reinstallation during cleaning, thereby shortening the cleaning time required.
[0012] Optionally, the upper and lower filter screens form an angle of 30-60 degrees with the horizontal plane.
[0013] By adopting the above technical solution, the inclined upper and lower filter screens enable the sediment to gradually accumulate along the slope under the action of water flow, and to the position near the top pressure detection device. This allows the three-section filter screen assembly to better filter out sand and gravel without affecting the water flow, thereby increasing the service life of the turbine of the agricultural sprinkler irrigation machine.
[0014] Optionally, the pressure monitoring device is a pressure gauge, whose sensor probe extends into the vertical pipe section of the four-way body.
[0015] By adopting the above technical solution, the pressure monitoring device uses a pressure gauge and a sensor probe that extends into the vertical pipe section of the four-way body. It can monitor the pressure inside the filter at any time. When the pressure increases, it indicates that there is more sediment, reminding you to clean the filter in time, thereby increasing the service life of the turbine of the agricultural sprinkler irrigation machine.
[0016] Optionally, both the pressure gauge and the removable plug are installed on the four-way body via a threaded connection.
[0017] By adopting the above technical solution, the threaded connection method makes it easy to install and remove the pressure gauge and the removable plug, and facilitates the cleaning and maintenance of the filter's interior, thereby ensuring the normal use of the filter and increasing the service life of the turbine of the agricultural sprinkler irrigation machine.
[0018] Optionally, a water-blocking valve is provided at the water inlet.
[0019] By adopting the above technical solution, the water-blocking valve can be closed before and after the cleaning operation to prevent water from reaching the four-way valve area, facilitating disassembly and installation. During the cleaning process, the water-blocking valve can be opened, and the water flow helps to flush away the accumulated mud and sand, allowing the water to carry the mud and sand out from the bottom of the four-way valve.
[0020] In summary, this application includes at least one of the following beneficial technical effects:
[0021] 1. A three-section filter assembly is installed inside the vertical pipe section of the four-way body. It can filter out sand and gravel without affecting the water flow, reduce impurities entering the water turbine and nozzle, and prevent the fan blades from jamming and the nozzles from clogging.
[0022] 2. The pressure monitoring device is installed on the top of the four-way body, which can monitor the pressure at any time. When the pressure increases, it indicates that there is a lot of mud and sand, indicating that it needs to be cleaned. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of the filter provided in the embodiment of this application.
[0024] Figure 2 This is a schematic diagram of the internal structure of the filter provided in the embodiment of this application.
[0025] Explanation of reference numerals in the attached drawings: 1-Four-way body; 2-Three-section filter assembly; 201-Upper section filter; 202-Middle section filter; 203-Lower section filter; 3-Pressure monitoring device; 4-Removable plug; 5-Water blocking valve. Detailed Implementation
[0026] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.
[0027] This application discloses a filter.
[0028] like Figure 1 and Figure 2As shown, the filter includes a four-way body, a three-section filter assembly, a pressure monitoring device, and a removable plug. The horizontal pipe section of the four-way body forms an inlet and an outlet at its two ends, respectively. The three-section filter assembly is located inside the vertical pipe section of the four-way body. The pressure monitoring device is installed at the top of the four-way body, and the removable plug is installed at the bottom. This structural arrangement allows water to enter through the inlet, be filtered by the three-section filter assembly, and then flow out through the outlet. The pressure monitoring device can monitor the internal pressure in real time, and the removable plug facilitates the cleaning of filtered impurities, achieving the effects of effective impurity filtration, easy observation, and timely cleaning. This is because the three-section filter assembly works in conjunction with the vertical pipe section of the four-way body to filter the water flow, improving the filtration effect. The pressure monitoring device allows users to understand the filtration status and promptly detect problems such as blockages. The vertical pipe section of the four-way body, the removable pressure monitoring device, and the removable plug provide convenience for cleaning impurities.
[0029] like Figure 1 and Figure 2 As shown, specifically, the four-way body is the main structure of the entire filter. It possesses a certain strength and corrosion resistance, and the material can be metal, such as stainless steel, or high-strength plastic. The two ends of the horizontal pipe section of the four-way body form the inlet and outlet, respectively. The inlet and outlet can be designed with standard pipe interface forms for connection with other pipes. For example, common connections include flange interfaces or threaded interfaces. A water-blocking valve can be installed at the inlet to control the water flow; this valve can be made of brass ball valve.
[0030] The three-section filter assembly includes a vertically positioned middle section filter, an upper section filter located near the outlet of the middle section filter and inclined towards the inlet, and a lower section filter located near the inlet of the middle section filter and inclined towards the inlet. The middle section filter is vertically positioned, its plane perpendicular to the line connecting the inlet and outlet; this arrangement maximizes the interception of impurities in the water flow. The middle section filter can be made of woven stainless steel wire, with the mesh size determined by the size of the impurities to be filtered. The upper section filter is located near the outlet of the middle section filter and inclined towards the inlet; its upper end is fixed to the inner wall of the four-way body near the outlet, and its lower end connects to the top of the middle section filter. The upper section filter can also be made of woven stainless steel wire; its inclined arrangement guides sediment closer to the pressure detection device. The lower filter screen is located on the side of the middle filter screen near the inlet and is inclined towards the inlet. Its lower end is fixed to the inner wall of the four-way body near the inlet, and its upper end connects to the bottom end of the middle filter screen. The lower filter screen also uses stainless steel wire mesh, and this inclined structure can also guide sediment towards the pressure detection device. The edges of the three-section filter screen assembly are fixed to the inner wall of the four-way body with clips. The clips can be elastic clips made of plastic. During installation, the edges of the filter screen are clipped into the clips for easy removal and replacement of the filter screen. The upper and lower filter screens form an angle of 30-60 degrees with the horizontal plane. The three-section filter screen assembly can divide the four-way body into an inlet area and an outlet area, keeping sediment in the inlet area and preventing stones and sediment in the water flow from causing the water turbine blades to jam and the nozzles to clog.
[0031] like Figure 1 and Figure 2 As shown, the pressure monitoring device is a pressure gauge, with its sensor probe extending into the vertical pipe section of the four-way body. The pressure gauge displays the pressure within the four-way body; an increase in pressure indicates that more sediment and other impurities have been trapped by the filter, requiring cleaning. The sensor probe is made of corrosion-resistant metal to ensure stable operation in flowing water environments. The pressure gauge is fixed to the top of the four-way body via a threaded connection. During installation, ensure the sensor probe is accurately inserted into the inlet area for continuous pressure monitoring. Increased pressure indicates excessive sediment, necessitating cleaning of the four-way body.
[0032] The removable plug is installed at the bottom of the four-way body via a threaded connection. The removable plug can be made of rubber or plastic and has external threads machined on its outer surface to match the internal threads at the bottom of the four-way body. During installation, the removable plug is screwed into the bottom of the four-way body to form a seal. When it is necessary to clean the filtered impurities, simply unscrew the removable plug.
[0033] The implementation principle of a filter according to an embodiment of this application is as follows:
[0034] Water flows into the horizontal pipe section of the four-way body from the inlet.
[0035] The water continues to flow into the vertical pipe section of the four-way valve body, where it is filtered by a three-section filter assembly. This assembly consists of a middle section filter, an upper section filter, and a lower section filter, which work together to maximize the interception of impurities in the water flow. The middle section filter is vertically positioned, its plane perpendicular to the line connecting the inlet and outlet. The upper and lower section filters are located on either side of the middle section filter and are both inclined towards the inlet. This arrangement guides sediment and other impurities closer to the pressure monitoring device.
[0036] The filtered water flows out from the outlet. The outlet can be designed as a standard pipe interface for connection to other pipes.
[0037] During the filtration process, a pressure monitoring device monitors the pressure inside the four-way valve in real time. Increased pressure indicates that the filter screen has trapped more impurities such as sediment, requiring cleaning. The pressure monitoring device is a pressure gauge; its sensor probe extends into the vertical section of the four-way valve body to display the pressure within the valve.
[0038] When it is necessary to clean the filtered impurities, the pressure gauge installed on the top of the four-way valve and the removable plug at the bottom can be unscrewed to facilitate the removal of internal impurities. Before and after cleaning, the water shut-off valve can be closed to prevent water from reaching the four-way valve, making disassembly and installation easier. During cleaning, the water shut-off valve should be opened and its opening reduced to allow the water flow to help flush away the accumulated silt, allowing the water flow to carry the silt away from the bottom of the four-way valve.
[0039] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A filter, characterized by, Includes a four-way body, a three-section filter assembly, a pressure monitoring device, and a removable plug; The transverse pipe section of the four-way body forms an inlet and an outlet at both ends, respectively. The three-section filter assembly is located inside the vertical pipe section of the four-way body. The three-section filter assembly includes a vertically arranged middle section filter, an upper section filter located on the side of the middle section filter near the outlet and inclined towards the inlet, and a lower section filter located on the side of the middle section filter near the inlet and inclined towards the inlet. The pressure monitoring device is detachably installed on the top of the four-way body, and the detachable plug is installed on the bottom of the four-way body.
2. The filter of claim 1, wherein, The upper section filter screen is fixed at its high end to the inner wall of the four-way body near the outlet, and its low end is connected to the top of the middle section filter screen. The lower section filter screen is fixed at its low end to the inner wall of the four-way body near the inlet, and its high end is connected to the bottom of the middle section filter screen.
3. The filter of claim 2, wherein, The edges of the three-section filter assembly are fixed to the inner wall of the four-way body by snap-fit.
4. The filter of claim 2, wherein, The upper and lower filter screens form an angle of 30-60 degrees with the horizontal plane.
5. The filter of claim 1, wherein, The pressure monitoring device is a pressure gauge, and its sensor probe extends into the vertical pipe section of the four-way body.
6. The filter of claim 5, wherein, Both the pressure gauge and the removable plug are installed on the four-way body via threaded connections.
7. The filter of claim 1, wherein A water-blocking valve is installed at the water inlet.