A new type of PE drip irrigation tape patch

Abstract

The utility model discloses a novel PE drip irrigation tape patch, including the patch body, the one side of patch body is equipped with U type runner, and the both sides of U type runner all are equipped with a plurality of asymmetric sawtooth groove, and a plurality of sawtooth groove all are equipped with winglike barrier block, and the end of U type runner is equipped with the water outlet, and the other end of U type runner is equipped with the water inlet. The utility model not only can break the laminar state of water flow in traditional maze runner effectively, make water flow form the vortex effect of sustained rotation, improve the self -cleaning ability of runner, prevent impurity deposition and block, can also keep water flow stability under low pressure environment, reduce the water difference of head and tail end, and can physically block sewage backwash when the system pump is stopped and generates reverse flow, protects drip irrigation system, can also prevent patch displacement or fall off in use, prolongs the service life of whole drip irrigation tape.

Description

Technical Field

[0001] This utility model relates to the field of drip irrigation tape patch technology, and in particular to a novel PE drip irrigation tape patch. Background Technology

[0002] In modern agriculture, drip irrigation technology has been widely used because it can make efficient use of water resources. Traditional drip irrigation systems mainly drip water onto the roots of crops through patches, which can significantly reduce water evaporation and loss.

[0003] However, the labyrinth channel structure in traditional embedded drip irrigation tape is complex, and impurities are easily deposited, leading to channel blockage and making cleaning difficult. In addition, the water flow stability is poor under low pressure, resulting in a large difference in water output at the beginning and end. In order to better address the above problems, promote the development of industry technology, and improve core competitiveness, this application proposes a patch for drip irrigation tape with a new composition structure that is different from the existing technology. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel PE drip irrigation tape patch.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A novel PE drip irrigation tape patch includes a patch body, a U-shaped flow channel on one side of the patch body, multiple asymmetrical serrated grooves on both sides of the U-shaped flow channel, wing-shaped obstruction blocks in each of the multiple serrated grooves, an outlet at one end of the U-shaped flow channel, and an inlet at the other end of the U-shaped flow channel.

[0006] As a further embodiment of this utility model, both the wing-shaped barrier block and the sawtooth groove have a streamlined profile resembling a water droplet, and a flow guiding gap is formed between them.

[0007] As a further embodiment of this utility model, a plurality of columns are provided on one side of the U-shaped flow channel, and the columns are evenly distributed on one side of the U-shaped flow channel.

[0008] As a further embodiment of this utility model, the patch body has multiple fins on both sides, and the fins are obliquely arranged on both sides of the patch body.

[0009] As a further embodiment of this utility model, a through groove is provided on one side of the patch body at the end of the water inlet, and an inclined filter screen is provided in the through groove.

[0010] The beneficial effects of this utility model are as follows: 1. In this utility model, the U-shaped flow channel on one side of the patch body, together with the asymmetric sawtooth groove and the wing-shaped barrier block design, forms a Tesla valve flow channel, which effectively breaks the laminar flow state of water in the traditional labyrinth flow channel, so that the water flow forms a continuous rotating vortex effect. This structure not only significantly improves the self-cleaning ability of the flow channel and prevents impurities from accumulating and clogging, but also maintains the stability of water flow in a low-pressure environment and reduces the difference between the water output at the beginning and end.

[0011] 2. In this utility model, the flow guiding gap formed by the wing-shaped barrier block with the streamlined contour of the water droplet and the sawtooth groove in the patch body can effectively reduce the system energy consumption during forward irrigation, and physically block the backflow of sewage when the system stops pumping and reverses, thus protecting the drip irrigation system.

[0012] 3. In this utility model, fins are provided on both sides of the patch body. The fins are arranged at an angle and are thermally fused together with the drip irrigation tape substrate to form a strong mechanical interlock, which prevents the patch from shifting or falling off during use and extends the service life of the entire drip irrigation tape.

[0013] 4. In this utility model, the inclined filter screen on one side of the patch body can intercept solid particles, increase filtration efficiency, and significantly reduce subsequent maintenance costs. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a novel PE drip irrigation tape patch proposed in this utility model; Figure 2 This is a side view of a novel PE drip irrigation tape patch proposed in this utility model. Figure 3 This is a schematic diagram of the back structure of a novel PE drip irrigation tape patch proposed in this utility model; In the diagram: 1. Patch body; 2. U-shaped flow channel; 3. Serrated groove; 4. Column; 5. Outlet; 6. Angled filter screen; 7. Wing-shaped barrier block; 8. Fin; 9. Inlet. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] Reference Figures 1-3A novel PE drip irrigation tape patch includes a patch body 1, which is made of high-density polyethylene (HDPE) material and is formed by injection molding. A U-shaped flow channel 2 is formed on one side of the patch body 1. The width of the U-shaped flow channel 2 is 0.8-1.2mm. The inner wall of the U-shaped flow channel 2 is polished to Ra≤0.1μm. Multiple asymmetrical serrated grooves 3 are formed on both sides of the U-shaped flow channel 2. The included angle of the serrated grooves 3 is 60°-75°. A wing-shaped barrier block 7 is provided in each of the multiple serrated grooves 3. A water outlet 5 is formed at one end of the U-shaped flow channel 2 and a water inlet 9 is formed at the other end of the U-shaped flow channel 2. When in use, the water continues to flow forward and encounters the Tesla valve flow channel formed by the wing-shaped obstacle block 7 with the streamlined contour of a water droplet and the asymmetric sawtooth groove 3. The original laminar flow state of the water is effectively broken and a continuous rotating vortex effect begins to form. This vortex effect enhances the self-cleaning ability of the flow channel, allowing the water to continuously flush the inner wall of the flow channel during the flow process, preventing impurities from accumulating and clogging. On the other hand, even under low-pressure conditions, it can maintain the stability of water flow, greatly reducing the difference in water output between the beginning and end of the drip irrigation tape.

[0017] Both the wing-shaped barrier block 7 and the sawtooth groove 3 have a streamlined profile that resembles a water droplet, and a flow guiding gap is formed between them. This can effectively reduce system energy consumption during forward irrigation and physically block sewage backflow when the system stops pumping and reverses flow, thus protecting the drip irrigation system. In this invention, a plurality of columns 4 are provided on one side of the U-shaped channel 2, and the columns 4 are evenly distributed on one side of the U-shaped channel 2. The columns 4 can locally disturb the water flow and destroy the laminar boundary layer of the water flow, effectively preventing fibrous impurities from spreading and adhering to the channel wall, and effectively dealing with irrigation water sources rich in algae or fiber.

[0018] In particular, multiple fins 8 are provided on both sides of the patch body 1, and the fins 8 are inclinedly arranged on both sides of the patch body 1. After the drip irrigation tape substrate is heat-fused together, a strong mechanical interlock is formed, which effectively prevents the patch from shifting or falling off during use, thereby extending the service life of the entire drip irrigation tape. A through groove is provided on one side of the patch body 1 at one end of the water inlet 9. An inclined filter screen 6 is provided in the through groove. The inclined filter screen 6 intercepts solid particles in the water flow, ensuring that the water flowing into the flow channel is relatively clean and reducing the risk of subsequent flow channel blockage.

[0019] Working principle: The patch body 1 is heat-fused into the drip irrigation tape substrate with a patch spacing of 300mm to adapt to the distribution of plant roots. When water flows into the U-shaped channel 2 from the inlet 9, it first encounters the inclined filter screen 6. The inclined filter screen 6 intercepts solid particles in the water flow, ensuring that the water entering the channel is relatively clean and reducing the risk of subsequent channel blockage. The water flow after being filtered by the filter screen continues to move forward and encounters the Tesla valve channel formed by the wing-shaped barrier block 7 with a water droplet-shaped streamline profile and the asymmetric sawtooth groove 3. The original laminar flow state of the water flow is effectively broken, and a continuous rotating vortex effect begins to form. This vortex effect enhances the self-cleaning ability of the channel on the one hand, allowing the water flow to continuously flush the inner wall of the channel during the flow process, preventing impurities from accumulating and clogging; on the other hand, it can maintain the stability of the water flow even in low-pressure environments, greatly reducing the difference in water output at the beginning and end of the drip irrigation tape. When the water flow reverses, due to the special structure of the Tesla valve flow channel, the water flow will encounter greater resistance and is difficult to flow in reverse, thus effectively preventing backflow. At the same time, the guide gap formed by the wing-shaped barrier block 7 and the sawtooth groove 3 allows the forward water flow to pass smoothly along the wall of the guide gap with minimal pressure loss. When reverse water flow occurs, the guide gap will guide the water flow to impact the unstable area at the tail of the wing-shaped barrier block 7 or the sawtooth groove 3, thereby generating an energy-dissipating vortex. This vortex greatly increases the resistance to reverse flow, effectively blocking backflow. Combined with the columns 4 evenly distributed on one side of the U-shaped flow channel 2, the hydraulic performance is further optimized, allowing the water flow to exit from the outlet 5 more evenly and stably, providing precise and appropriate irrigation for crops.

[0020] Furthermore, although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new type of PE drip irrigation tape patch, comprising a patch body (1), characterized in that, A U-shaped flow channel (2) is provided on one side of the patch body (1), and multiple asymmetrical serrated grooves (3) are provided on both sides of the U-shaped flow channel (2). A wing-shaped barrier block (7) is provided in each of the multiple serrated grooves (3). A water outlet (5) is provided at one end of the U-shaped flow channel (2), and a water inlet (9) is provided at the other end of the U-shaped flow channel (2).

2. A new PE drip irrigation tape patch according to claim 1, characterized by, Both the wing-shaped barrier block (7) and the sawtooth groove (3) have a streamlined profile resembling a water droplet, and a flow-guiding gap is formed between them.

3. A new PE drip irrigation tape patch according to claim 1, characterized by, The U-shaped flow channel (2) has multiple columns (4) on one side, and the columns (4) are evenly distributed on one side of the U-shaped flow channel (2).

4. A novel PE drip irrigation tape patch according to claim 3, characterized in that, The patch body (1) has multiple fins (8) on both sides, and the fins (8) are obliquely arranged on both sides of the patch body (1).

5. A novel PE drip irrigation tape patch according to claim 3, characterized in that, The patch body (1) has a through groove on one side of the water inlet (9), and an inclined filter screen (6) is provided in the through groove.

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