Anti-clogging drip irrigation head

Abstract

This utility model relates to the field of drip irrigation nozzle technology and discloses an anti-clogging drip irrigation nozzle, including a delivery pipe. A flow sleeve is fixedly connected to the lower end of the delivery pipe. The inner wall of the flow sleeve has a spiral groove. An installation sleeve is provided at the lower end of the flow sleeve. An installation plate is placed at the lower end of the inner wall of the installation sleeve. A filter screen is provided on the inner wall of the installation plate. Rotating plates are rotatably connected to both sides of the bottom surface of the installation sleeve. Multiple sliding grooves are provided on the inner wall of each rotating plate. A return spring is fixedly connected to the top of the inner wall of each sliding groove. Positioning pins are slidably connected to the inner wall of each rotating plate. In this utility model, when the drip irrigation nozzle is in use, the diameter gradually narrows from the inlet end to the outlet end. The increasing water flow velocity generates a scouring force, preventing impurities from accumulating at corners or narrow areas. Simultaneously, the spiral grooves on the inner wall of the flow sleeve promote the formation of a rotating vortex in the water flow, enhancing the scouring force against impurities and further reducing deposition in the flow channel.

Description

Technical Field

[0001] This utility model relates to the field of drip irrigation nozzle technology, and in particular to an anti-clogging drip irrigation nozzle. Background Technology

[0002] As is well known, a drip irrigation nozzle is an irrigation device installed at the end of a drip irrigation system. It mainly delivers water or a mixture of water and fertilizer to the soil near the plant roots in the form of drops, streams, or atomization through a controllable water flow channel. It can precisely control the amount of irrigation, reduce water evaporation and leakage, and improve water resource utilization.

[0003] However, traditional drip irrigation nozzles are often prone to clogging and difficult to unclog. This is mainly because the nozzle orifice is small, and tiny impurities carried by the water flow (such as silt particles, algae spores, and fertilizer crystals) tend to accumulate there. At the same time, the nozzles are mostly designed as straight holes or sharp angles, which can easily create turbulent dead zones and accelerate the adhesion of impurities. Therefore, technical improvements are urgently needed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-clogging drip irrigation nozzle. When in use, the nozzle gradually narrows from the inlet end to the outlet end, utilizing the scouring force generated by the increasing water flow velocity to prevent impurities from accumulating at corners or narrow areas. At the same time, the spiral grooves on the inner wall of the flow sleeve can promote the formation of a rotating vortex in the water flow, enhancing the scouring force against impurities and further reducing deposition in the flow channel.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An anti-clogging drip irrigation nozzle includes a delivery pipe, a flow sleeve fixedly connected to the lower end of the delivery pipe, a spiral groove formed on the inner wall of the flow sleeve, an installation sleeve at the lower end of the flow sleeve, an installation plate placed at the lower end of the inner wall of the installation sleeve, a filter screen on the inner wall of the installation plate, rotating plates rotatably connected to both sides of the bottom surface of the installation sleeve, multiple sliding grooves formed on the inner wall of each rotating plate, a return spring fixedly connected to the top of the inner wall of each sliding groove, and a positioning post slidably connected to the inner wall of each rotating plate.

[0006] Compared with existing drip irrigation nozzles, this drip irrigation nozzle can pre-intercept large particles of impurities through the filter screen on the mounting plate when in use. With the threaded connection of the flow sleeve and the mounting sleeve, as well as the positioning post, return spring and positioning hole, it is easy to quickly disassemble, clean or replace the filter screen.

[0007] Furthermore, the lower end of the outer wall of the flow sleeve is provided with an external thread, and the upper end of the inner wall of the mounting sleeve is provided with an internal thread, and the external thread and the internal thread are threadedly connected. The above technical solution facilitates the disassembly of the mounting sleeve through the connection of external and internal threads.

[0008] Furthermore, a drip nozzle is fixedly connected to the lower end of the mounting sleeve; The above technical solution facilitates the flow of liquid through the dripper.

[0009] Furthermore, positioning holes are provided on both sides of the upper surface of the mounting plate, and the positioning pins are engaged with the positioning holes. The above technical solution facilitates the positioning of the mounting plate by engaging the positioning pin with the positioning hole.

[0010] Furthermore, multiple sliders are fixedly connected to the middle part of the outer wall of the positioning column, and the lower end of the reset spring is fixedly connected to the upper end of the slider respectively. The above technical solution facilitates the positioning of the mounting plate by using a reset spring in conjunction with a slider.

[0011] Furthermore, a pull block is fixedly connected to the upper end of the positioning post; The above technical solution facilitates the movement of the positioning column by using a pull block.

[0012] This utility model has the following beneficial effects: 1. The anti-clogging drip irrigation nozzle proposed in this utility model, compared with existing drip irrigation nozzles, prevents impurities from accumulating at corners or narrow areas by gradually narrowing the diameter from the inlet end to the outlet end during use, utilizing the scouring force generated by the increasing water flow velocity. Simultaneously, the spiral grooves on the inner wall of the flow sleeve promote the formation of a rotating vortex in the water flow, enhancing the scouring force against impurities and further reducing deposition within the flow channel. 2. The anti-clogging drip irrigation nozzle proposed in this utility model, compared with the existing drip irrigation nozzle, can pre-intercept large particles of impurities through the filter screen on the mounting plate when in use. It is combined with the threaded connection of the flow sleeve and the mounting sleeve, as well as the positioning post, the return spring and the positioning hole to make it easy to quickly disassemble, clean or replace the filter screen. Attached Figure Description

[0013] Figure 1 This is an isometric view of the anti-clogging drip irrigation nozzle proposed in this utility model; Figure 2 An exploded view of the mounting box in the anti-clogging drip irrigation nozzle proposed in this utility model; Figure 3 This is a cross-sectional view of the flow sleeve and delivery pipe in the anti-clogging drip irrigation nozzle proposed in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5An exploded view of the mounting plate in the anti-clogging drip irrigation nozzle proposed in this utility model; Figure 6 for Figure 5 Enlarged view of point B in the middle; Figure 7 This is a cross-sectional view of the rotating plate in the anti-clogging drip irrigation nozzle proposed in this utility model; Figure 8 for Figure 7 Enlarged view of point C in the middle.

[0014] Explanation of reference numerals in the attached figures: 1. Conveying pipe; 2. Flow sleeve; 21. External thread; 22. Spiral groove; 3. Mounting sleeve; 31. Internal thread; 32. Dropper; 33. Mounting plate; 34. Filter screen; 35. Positioning hole; 36. Rotating plate; 37. Slide groove; 38. Return spring; 39. Positioning post; 310. Sliding block; 311. Pull block. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Reference Figure 1-8 An embodiment of this utility model provides an anti-clogging drip irrigation nozzle, including a delivery pipe 1, a flow sleeve 2 fixedly connected to the lower end of the delivery pipe 1, a spiral groove 22 formed on the inner wall of the flow sleeve 2, an installation sleeve 3 provided at the lower end of the flow sleeve 2, an installation plate 33 placed at the lower end of the inner wall of the installation sleeve 3, a filter screen 34 provided on the inner wall of the installation plate 33, a rotating plate 36 rotatably connected to both sides of the bottom surface of the installation sleeve 3, a plurality of sliding grooves 37 formed on the inner wall of the rotating plate 36, a return spring 38 fixedly connected to the top of the inner wall of the sliding groove 37, and a positioning post 39 slidably connected to the inner wall of the rotating plate 36.

[0017] Compared to existing drip irrigation nozzles, this drip irrigation nozzle can pre-intercept large particles of impurities through the filter screen 34 on the mounting plate 33. It is also connected to the threaded flow sleeve 2 and the mounting sleeve 3, as well as the positioning post 39, the return spring 38 and the positioning hole 35, which can be easily disassembled for cleaning or replacement of the filter screen 34.

[0018] The lower end of the outer wall of the flow sleeve 2 is provided with an external thread 21, and the upper end of the inner wall of the mounting sleeve 3 is provided with an internal thread 31. The external thread 21 and the internal thread 31 are threaded together. The external thread 21 and internal thread 31 facilitate the disassembly of the mounting sleeve 3.

[0019] The lower end of the mounting sleeve 3 is fixedly connected to the drip head 32; The dropper 32 facilitates the flow of liquid.

[0020] Positioning holes 35 are provided on both sides of the upper surface of the mounting plate 33, and the positioning pin 39 is engaged with the positioning holes 35. The positioning pin 39 engages with the positioning hole 35 to facilitate the positioning of the mounting plate 33.

[0021] Multiple sliders 310 are fixedly connected to the middle of the outer wall of the positioning column 39, and the lower end of the return spring 38 is fixedly connected to the upper end of the slider 310 respectively. The reset spring 38, in conjunction with the slider 310, facilitates the positioning of the mounting plate 33.

[0022] A pull block 311 is fixedly connected to the upper end of the positioning post 39; The pull block 311 facilitates the movement of the positioning column 39.

[0023] Working principle: When in use, after the liquid enters the flow sleeve 2 through the delivery pipe 1, the diameter of the flow sleeve 2 gradually narrows from the water inlet end to the connection end with the mounting sleeve 3. The water flow velocity increases as the cross-section decreases, and the resulting scouring force can reduce the deposition of impurities in the flow channel. At the same time, the spiral groove 22 on the inner wall of the flow sleeve 2 causes the water flow to form a rotating vortex, further enhancing the self-cleaning effect on the inner wall and reducing the adhesion of impurities. When the water flows into the mounting sleeve 3, it first passes through the filter screen 34 on the mounting plate 33, and large particles of impurities are intercepted in advance. Then, the filtered water flows out through the dripper 32 at the lower end of the mounting sleeve 3 to complete irrigation. If it is necessary to clean or replace the filter screen 34, the mounting sleeve 3 can be disassembled by the cooperation of the external thread 21 and the internal thread 31. Pulling the pull block 311 drives the positioning post 39 and the slider 310 to compress the return spring 38, so that the positioning post 39 disengages from the positioning hole 35 of the mounting plate 33, and the mounting plate 33 can be removed for replacement or cleaning.

[0024] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0025] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An anti-clogging drip irrigation nozzle, including a delivery pipe (1), characterized in that: The lower end of the conveying pipe (1) is fixedly connected to a flow sleeve (2). The inner wall of the flow sleeve (2) is provided with a spiral groove (22). The lower end of the flow sleeve (2) is provided with an installation sleeve (3). The lower end of the inner wall of the installation sleeve (3) is provided with an installation plate (33). The inner wall of the installation plate (33) is provided with a filter screen (34). Rotating plates (36) are rotatably connected to both sides of the bottom surface of the installation sleeve (3). Multiple sliding grooves (37) are provided on the inner wall of the rotating plate (36). A return spring (38) is fixedly connected to the top of the inner wall of the sliding groove (37). A positioning column (39) is slidably connected to the inner wall of the rotating plate (36).

2. The anti-clogging drip irrigation nozzle according to claim 1, characterized in that: The lower end of the outer wall of the circulation sleeve (2) is provided with an external thread (21), and the upper end of the inner wall of the mounting sleeve (3) is provided with an internal thread (31). The external thread (21) and the internal thread (31) are threaded together.

3. The anti-clogging drip irrigation nozzle according to claim 1, characterized in that: The lower end of the mounting sleeve (3) is fixedly connected to a drip head (32).

4. The anti-clogging drip irrigation nozzle according to claim 1, characterized in that: The mounting plate (33) has positioning holes (35) on both sides of its upper surface, and the positioning pin (39) engages with the positioning hole (35).

5. The anti-clogging drip irrigation nozzle according to claim 1, characterized in that: Multiple sliders (310) are fixedly connected to the middle of the outer wall of the positioning column (39), and the lower end of the reset spring (38) is fixedly connected to the upper end of the slider (310).

6. The anti-clogging drip irrigation nozzle according to claim 1, characterized in that: The upper end of the positioning post (39) is fixedly connected to a pull block (311).

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