Drip irrigation sprinkler with filter anti-blocking function

Abstract

This application discloses a drip irrigation nozzle with a filtration and anti-clogging function. The nozzle includes a main body and a filter assembly disposed within its water flow channel. The filter assembly includes a filter screen, a rotating column, and a knob. The filter screen is detachably installed in the main body's mounting opening, with a pre-existing gap between its outer wall and the inner wall of the channel. A boss is provided at the top of the rotating column to limit the filter screen, and an annular groove is provided at the bottom. An axial guide groove is provided on the side wall, connecting the boss to the annular groove. The knob is threadedly connected to the rotating column, forming a communicating space between them. The main body has a drain port, which the boss can seal or open. This invention intercepts impurities through the filter screen and uses the rotation of the rotating column to control the opening and closing of the drain port to clean impurities. It has a simple structure and effectively solves the problem of easy clogging in drip irrigation nozzles, making it particularly suitable for irrigation of crops such as jackfruit.

Description

Technical Field

[0001] This application relates to the field of agricultural irrigation technology, and more specifically, to a drip irrigation nozzle with a filter and anti-clogging function. Background Technology

[0002] In agricultural planting, especially in jackfruit cultivation, irrigation is a crucial step in ensuring healthy crop growth and improving yield and quality. Drip irrigation technology, due to its ability to precisely deliver water to the crop roots and significantly improve water resource utilization, has been widely used in jackfruit cultivation. However, in practical use, traditional drip irrigation nozzles often face clogging problems caused by impurities and particulate matter in the water. Jackfruit cultivation requires high stability and uniformity in irrigation; once the nozzles are clogged, it not only affects the uniformity and efficiency of irrigation, increasing maintenance and replacement costs, but may also hinder jackfruit growth due to untimely irrigation, affecting fruit size, taste, and yield. Based on this, our company, as a company specializing in jackfruit cultivation, has developed a drip irrigation nozzle with a filter and anti-clogging function. Utility Model Content

[0003] This application provides a drip irrigation nozzle with a filtering and anti-clogging function. The drip irrigation nozzle has a water flow channel formed inside, and a switch valve is provided at the outlet. The drip irrigation nozzle includes a filter assembly disposed within the water flow channel, comprising a barrel-shaped filter screen, a rotating column, and a knob. The drip irrigation nozzle has an installation port, into which the filter screen is detachably installed, with a gap reserved between the outer wall of the filter screen and the inner wall of the outlet pipe. A boss extends outward from the top sidewall of the rotating column, abutting against the upper end of the filter screen to define its position. An annular groove is formed on the bottom sidewall of the rotating column, and an axially extending guide groove is formed on the sidewall of the rotating column, passing through the boss and extending to the annular groove. The knob is threadedly connected to the rotating column, and a communicating space is formed between the knob and the boss. The drip irrigation nozzle has a drain port, which the boss can seal or open.

[0004] In some embodiments, the upper edge of the filter screen protrudes outward to form an annular flange, and a step is formed on the inner wall of the water outlet pipe corresponding to the position of the annular flange. The annular flange is engaged on the step to achieve axial positioning; the boss abuts against the annular flange.

[0005] In some embodiments, the portion below the boss of the rotating column extends into the interior of the filter screen, and its outer periphery is in contact with the inner wall of the filter screen.

[0006] In some embodiments, there are multiple guide channels, which are evenly distributed along the circumference of the swirl column.

[0007] In some embodiments, the top of the swivel extends outward to form a stud, and the knob is connected to the stud via an internal thread.

[0008] In some embodiments, a magnetic ring is provided in the communicating space, the magnetic ring is sleeved on the stud and is interference-fitted with the stud.

[0009] In some embodiments, a baffle is provided between the boss and the knob, which divides the communicating space into two interconnected chambers.

[0010] In some embodiments, the outer wall of the drip irrigation nozzle is provided with a limit block, and the knob is provided with a protrusion that cooperates with the limit block to limit the rotation angle of the knob.

[0011] In some embodiments, the swivel is made of an elastic material, and its bosses form an interference fit with the drain port to achieve a seal.

[0012] In some embodiments, a sealing cap is detachably connected to the drain port.

[0013] This drip irrigation nozzle features a built-in removable filter that effectively intercepts impurities in the water, preventing clogging at its source. The unique swirl column and guide channel design create a stable flow channel during normal irrigation; in case of clogging, rotating the knob activates the flushing port, and the reverse water flow quickly removes accumulated impurities. This structure achieves a unified approach to filtration and rapid self-cleaning, significantly improving the nozzle's long-term operational stability and reliability in complex water conditions, and greatly reducing maintenance frequency and the risk of clogging.

[0014] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0016] Figure 1 This is a top view of the overall structure of the embodiment of this application;

[0017] Figure 2 This is a half-sectional schematic diagram of the overall structure of the embodiment of this application;

[0018] Figure 3 This is an exploded structural diagram of the filtering component according to an embodiment of this application.

[0019] Explanation of main component symbols: drip irrigation nozzle (100), switch valve (10), inlet pipe (11), outlet pipe (12), step (121), mounting port (122), drain port (123), sealing cap (124), filter assembly (20), filter screen (21), annular flange (211), swivel column (22), boss (221), annular groove (222), guide groove (223), stud (224), knob (23), connecting space (24), magnetic ring (25), limit block (26). Detailed Implementation

[0020] The embodiments of this application will be further described below with reference to the accompanying drawings. The same or similar reference numerals in the drawings denote the same or similar elements or elements having the same or similar functions throughout.

[0021] Furthermore, the embodiments of this application described below in conjunction with the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting this application.

[0022] In this application, unless otherwise expressly specified and limited, the first feature "above" or "below" the second feature may be in direct contact or indirect contact through an intermediate medium. Furthermore, the first feature "above," "on top of," or "over" the second feature may be directly above or diagonally above, or may simply indicate that the first feature is at a higher horizontal level than the second feature; the first feature "below," "below," or "beneath" the second feature may be directly below or diagonally below, or may simply indicate that the first feature is at a lower horizontal level than the second feature.

[0023] Please see Figure 1 , Figure 2 and Figure 3This application provides a drip irrigation nozzle (100) with a filter and anti-clogging function. A water flow channel is formed inside the drip irrigation nozzle (100), and a switch valve (10) is provided at the outlet of the drip irrigation nozzle (100). A filter assembly (20) is disposed in the water flow channel. The filter assembly (20) includes a barrel-shaped filter screen (21), a rotating column (22), and a knob (23). An installation port (122) is provided on the drip irrigation nozzle (100). The filter screen (21) is detachably installed in the installation port (122), and a gap is reserved between the outer wall of the filter screen (21) and the inner wall of the outlet pipe (12). The top side wall of the rotating column (22) extends outward to form a boss (221). The boss (221) abuts against the upper end of the filter screen (21) to limit The position is determined; an annular groove (222) is formed on the bottom side wall of the rotating column (22), and an axially extending guide groove (223) is provided on the side wall of the rotating column (22), the guide groove (223) passes through the boss (221) and extends to the annular groove (222). The knob (23) is threadedly connected to the rotating column (22), and a communicating space (24) is formed between the knob (23) and the boss (221). The drip irrigation nozzle (100) is provided with a drain port (123), and the boss (221) can block or open the drain port (123).

[0024] The drip irrigation nozzle (100) of this application effectively intercepts impurities in the water through a built-in removable filter (21), preventing clogging at the source. The unique design of the swirl column (22) and the guide channel (223) forms a stable flow channel during normal irrigation; when clogging occurs, rotating the knob (23) will activate the boss (221) to open the drain port (123), and the accumulated impurities will be quickly discharged by utilizing the reverse flushing effect of the water flow. This structure achieves the unity of filtration and rapid self-cleaning, significantly improving the long-term working stability and reliability of the nozzle under complex water quality conditions, and greatly reducing the maintenance frequency and clogging risk.

[0025] Please see Figure 1 and Figure 2 The drip irrigation nozzle (100) includes an inlet pipe ((11) and an outlet pipe ((12), which are vertically connected and form an "L"-shaped main structure. The outlet pipe ((12)) is equipped with a switch valve (10) to control the flow of water.

[0026] Please combine Figure 3 The filter assembly (20) is located in the water flow channel. Its main function is to filter and purify the water flowing through the main body in order to improve the quality of irrigation water and reduce damage to irrigation equipment and crops. The filter assembly (20) includes a filter screen (21), a rotating column (22), and a knob (23).

[0027] The filter screen (21) is barrel-shaped and detachably installed inside the main body. Its sidewalls are evenly distributed with micropores, which can effectively block impurity particles and prevent larger particles from entering the subsequent irrigation system. Specifically, an installation port (122) is provided at the connection between the inlet pipe (11) and the outlet pipe (12). More specifically, the installation port (122) is located at the beginning of the outlet pipe (12). The upper edge of the filter screen (21) protrudes to form an annular flange (211), and an annular flange (211) is formed inside the outlet pipe (12). There is a step (121), and an annular flange (211) is fixed on the step (121) to achieve axial positioning of the filter screen (21) and ensure the stability of the filter screen (21) during operation. The outer wall of the filter screen (21) and the inner wall of the outlet pipe (12) are reserved with a gap. This gap forms a flow channel, so that the water flow can flow evenly along the space between the outer wall of the filter screen (21) and the inner wall of the outlet pipe (12), thereby improving the filtration efficiency and avoiding local water flow concentration that leads to poor filtration effect.

[0028] The rotating column (22) is made of an elastic material, such as silicone or rubber. The top sidewall of the rotating column (22) extends outward to form an annular boss (221), which abuts against the annular flange (211) of the filter screen (21) to precisely define the installation position of the filter screen (21) and prevent the filter screen (21) from shifting during operation. The bottom sidewall of the rotating column (22) has an annular groove (222). The outlet pipe (12) is provided with a drain port (123) at the starting end of the filter screen (21), and a sealing cap (124) is detachably connected to the drain port (123). The boss (221) can tightly seal the drain port (123) to prevent water from flowing out during normal filtration. Untreated water flows out from the drain port (123). A guide groove (223) extending axially is provided on the side wall of the swirl column (22). The guide groove (223) passes through the boss (221) from the top and extends to the annular groove (222), providing a specific flow path for the water. The part of the swirl column (22) below the boss (221) extends into the filter screen (21), and its outer periphery fits against the inner wall of the filter screen (21), ensuring the sealing and relative position stability between the knob (23) and the filter screen (21). There are 4 guide grooves (223) evenly distributed along the circumference of the boss (221). This even distribution design helps to distribute the water evenly in the circumferential direction, improving the filtration and declogging effect.

[0029] The top of the knob (23) extends outward to form a stud (224) which is threadedly connected to the stud (22). The knob (23) can be flexibly rotated and fixed through the threaded connection. A communicating space (24) is formed between the knob (23) and the boss (221). This communicating space (24) is connected to the drain port (123) through the guide groove (223), providing a channel for the flow of water between different components. A cap is provided on the stud (224) to seal the installation port (122).

[0030] The water flowing out of the end of the inlet pipe ((11) flows into the guide channel ((223) after passing through the connecting space ((24)). Then it passes through the filter screen ((21)) and is guided by the guide channel ((223) to the inside of the filter screen ((21). After impurities are filtered out by the micropores, it flows out from the outlet pipe (12) of the switch valve (10), completing the entire filtration irrigation process.

[0031] To further adsorb impurities such as iron filings in the water, a magnetic ring (25) is provided in the connecting space (24). The magnetic ring (25) is fitted onto the stud (224) with an interference fit. This fit ensures that the magnetic ring (25) is firmly fixed in the connecting space (24) and will not easily loosen during operation, thus effectively preventing iron filings from entering the filter screen (21) through the guide groove (223). The magnetic ring (25) not only improves the filtration accuracy and can adsorb finer impurities such as iron filings, reducing wear on the irrigation system, but also extends the cleaning cycle of the filter screen (21), reducing the cost of use and maintenance frequency.

[0032] Furthermore, a baffle (225) is provided between the boss (221) and the knob (23), which makes the communicating space (24) form two interconnected chambers of different sizes. This structural design allows a pressure difference to be created between the two chambers during unblocking, causing the water flow to carry the blockage impurities from the larger chamber to the smaller chamber, enhancing the unblocking power, improving the unblocking efficiency, and ensuring that the drip irrigation nozzle (100) can maintain good working performance after long-term use.

[0033] Furthermore, the outer wall of the drip irrigation nozzle (100) is provided with a limiting block (26) to restrict the rotation of the knob (23). This block works in conjunction with the protrusion on the knob (23) to achieve precise control of the rotation angle, preventing excessive rotation from damaging the sealing structure or loosening the connection. This limiting design ensures that the knob (23) rotates only within the allowable range during operation, improving the durability and safety of the device. At the same time, it facilitates the user to accurately open and close the drain port (123) when cleaning the filter screen (21), making the operation intuitive and convenient, and effectively reducing the risk of misoperation.

[0034] During installation, the filter screen (21) is first inserted into the outlet pipe (12) so that its annular flange (211) is accurately inserted into the step (121), ensuring the initial installation position of the filter screen (21) is correct. Then, the screw (22) is inserted from top to bottom, so that the boss (221) presses against the annular flange (211), while ensuring that the boss (221) is aligned with the drain port (123). This step is crucial for the sealing and functionality of the entire structure. Next, the magnetic ring (25) is fitted onto the stud (224) and pushed into the connecting space (24), placing the magnetic ring (25) in the appropriate working position. Finally, the knob (23) is tightened to fix the baffle (225) between the boss (221) and the knob (23), completing the component assembly. The entire installation process must be carried out strictly in sequence to ensure accurate fit between the components and to guarantee the normal operation of the drip irrigation nozzle (100).

[0035] When cleaning is required, repeatedly turn the knob (23) to allow the rotating column (22) to scrape off the attached impurities on the filter screen (21). Through the relative movement of the rotating column (22) and the filter screen (21), the impurities on the surface of the filter screen (21) are removed. Rotate the knob (23) to align the guide groove (223) with the drain port (123). At this time, the water flow channel changes, and the guide groove (223) guides the water flow to impact the micropores of the filter screen (21) in the opposite direction. The unfiltered water flows directly towards the drain port (123) through the guide groove (223), forming a reverse high-pressure flushing flow. This high-pressure flushing flow can generate a large impact force, pushing the impurities blocked in the micropores and chambers of the filter screen (21) out of the drain port (123). At the same time, the pressure difference between the large chamber and the small chamber further intensifies the water flow disturbance, effectively stripping the particles attached to the magnetic ring (25) and the inner wall of the filter screen (21), making the cleaning more thorough.

[0036] After rinsing for a short while, rotate the knob (23) in the opposite direction to reset it, and the guide channel (223) will be aligned with the filter channel again, restoring the device to normal operation. The entire cleaning process does not require disassembly of any parts, making it simple and efficient to operate. By rotating the knob (23), the filtration and backwashing modes can be switched freely, enabling in-situ cleaning of the filter screen (21), which greatly improves the ease of use and maintenance efficiency of the drip irrigation nozzle (100).

[0037] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A drip irrigation nozzle (100) with a filter and anti-clogging function, wherein a water flow channel is formed inside the drip irrigation nozzle (100), and a switch valve (10) is provided at the outlet of the drip irrigation nozzle (100), characterized in that, include: The filter assembly (20) is disposed in the water flow channel. The filter assembly (20) includes a barrel-shaped filter screen (21), a swirl column (22), and a knob (23). The drip irrigation nozzle (100) is provided with an installation port (122), and the filter screen (21) is detachably installed in the installation port (122), and a gap is reserved between the outer wall of the filter screen (21) and the inner wall of the water outlet pipe (12); The top sidewall of the rotating column (22) extends outward to form a boss (221), which abuts against the upper end of the filter screen (21) to define its position. The bottom sidewall of the swivel column (22) has an annular groove (222), and the sidewall of the swivel column (22) has an axially extending guide groove (223), which passes through the boss (221) and extends to the annular groove (222). The knob (23) is threadedly connected to the rotating post (22), and a communicating space (24) is formed between the knob (23) and the boss (221); The drip irrigation nozzle (100) has a drain port (123), and the boss (221) can block or open the drain port (123).

2. The drip irrigation nozzle according to claim 1, characterized in that, The upper edge of the filter screen (21) protrudes outward to form an annular flange (211). The inner wall of the water outlet pipe (12) has a step (121) corresponding to the position of the annular flange (211). The annular flange (211) is engaged on the step (121) to achieve axial positioning. The boss (221) abuts against the annular flange (211).

3. The drip irrigation nozzle according to claim 1, characterized in that, The portion below the boss (221) of the rotating column (22) extends into the interior of the filter screen (21), and its outer periphery is in contact with the inner wall of the filter screen (21).

4. The drip irrigation nozzle according to claim 1, characterized in that, There are multiple guide grooves (223), which are evenly distributed along the circumference of the spiral column (22).

5. The drip irrigation nozzle according to claim 1, characterized in that, The top of the stud (22) extends outward to form a stud (224), and the knob (23) is connected to the stud (224) through an internal thread.

6. The drip irrigation nozzle according to claim 5, characterized in that, A magnetic ring (25) is provided in the connecting space (24). The magnetic ring (25) is sleeved on the stud (224) and is interference-fitted with the stud (224).

7. The drip irrigation nozzle according to claim 1, characterized in that, A baffle (225) is provided between the boss (221) and the knob (23), which divides the communicating space (24) into two interconnected chambers.

8. The drip irrigation nozzle according to claim 1, characterized in that, The outer wall of the drip irrigation nozzle (100) is provided with a limiting block (26), and the knob (23) is provided with a protrusion that cooperates with the limiting block (26) to limit the rotation angle of the knob (23).

9. The drip irrigation nozzle according to claim 1, characterized in that, The rotating column (22) is made of elastic material, and its boss (221) forms an interference fit with the drain port (123) to achieve a seal.

10. The drip irrigation nozzle according to any one of claims 1 to 9, characterized in that, A sealing cap (124) is detachably connected to the drain port (123).

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