A drip irrigation tape with uniform flow rate

Abstract

This utility model relates to the field of agricultural engineering technology and discloses a drip irrigation tape with uniform flow rate, including a plastic tube and drippers. The inner wall of the plastic tube is provided with a flow rate regulating mechanism, and the front end of the outer wall of the plastic tube has a water outlet. A fixing pipe is fixedly connected to the inner wall of the water outlet, and a connecting mechanism is provided at the front end of the fixing pipe. A conversion mechanism is provided at the right end of the plastic tube, and a monitoring mechanism is provided at the rear end of the inner wall of the fixing pipe. The flow rate regulating mechanism includes an annular boss, the outer wall of which is fixedly connected to the inner wall of the plastic tube. In this utility model, water pressure pushes a baffle, thereby compressing a spring, allowing the device to adjust the area of ​​the water passage according to changes in water pressure to regulate the flow rate. Guide columns are used for guidance, and limiting blocks are used for limiting, effectively coping with water pressure fluctuations, extending the service life of the device, and ensuring the uniformity of drip irrigation.

Description

Technical Field

[0001] This utility model relates to the field of agricultural engineering technology, and in particular to a drip irrigation tape with uniform flow rate. Background Technology

[0002] As a water-saving irrigation device designed with special technology, the uniform flow rate drip irrigation tape features evenly distributed and precise water outlets on the inner wall of the pipe. By optimizing the flow channel structure and compensating for pipe pressure, the drip irrigation tape can deliver water at a stable and consistent flow rate under different laying lengths and terrain conditions. This effectively avoids the problem of uneven water delivery caused by water pressure changes in traditional drip irrigation tape, enabling precise control of irrigation volume, improving water resource utilization, increasing the applicability of drip irrigation tape, and providing balanced water for crop growth.

[0003] Although uniform flow rate drip tape can ensure even water distribution, it relies on channel length or structural design to achieve uniform flow rate and lacks dynamic pressure compensation. When the water pump starts or stops, or when multiple areas are irrigated simultaneously, causing pressure decay, the dripper flow rate fluctuates with pressure changes, making it impossible to truly maintain uniformity. The existing solution is to use pressure-compensating dripper technology, which involves placing an elastic diaphragm structure inside the drip tape. The diaphragm deformation automatically adjusts the channel cross-sectional area. When the pressure inside the device increases, the diaphragm contracts under pressure, narrowing the channel; conversely, it expands, widening the channel, thus stabilizing the dripper flow rate. However, after long-term use, the diaphragm of pressure-compensating drippers hardens due to calcium and magnesium ion deposition in the water or corrosion from chemical fertilizers, leading to a decrease in pressure compensation accuracy. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a drip irrigation tape with uniform flow rate, which aims to improve the problem that pressure-compensating drippers in the prior art will harden after long-term use, resulting in a decrease in pressure compensation accuracy.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a drip irrigation tape with uniform flow rate, comprising a plastic tube and a dripper, wherein the inner wall of the plastic tube is provided with a flow rate adjustment mechanism, the front end of the outer wall of the plastic tube is provided with a water outlet hole, the inner wall of the water outlet hole is fixedly connected to a fixing pipe, the front end of the fixing pipe is provided with a connecting mechanism, the right end of the plastic tube is provided with a conversion mechanism, and the rear end of the inner wall of the fixing pipe is provided with a monitoring mechanism.

[0006] The flow rate regulating mechanism includes an annular boss, the outer wall of which is fixedly connected to the inner wall of the plastic tube. A guide hole is provided in the middle of the outer wall of the annular boss. Two springs are fixedly connected to the right end of the annular boss. Two multi-stage telescopic rods are fixedly connected to the right end of the annular boss. The same baffle is fixedly connected to the right end of both multi-stage telescopic rods. A limit block is fixedly connected to the top of the inner wall of the plastic tube. A rubber pad is fixedly connected to the right side of the limit block. A guide component is provided on the outer wall of the baffle.

[0007] As a further description of the above technical solution:

[0008] The connecting mechanism includes two buckles, the front sides of which are fixedly connected to the rear end of the dropper. The front end of the fixing tube has slots on both the left and right sides. The rear end of the dropper is fixedly connected to multiple positioning posts. The front end of the fixing tube has multiple positioning grooves. The rear side of each of the multiple positioning posts is fixedly connected to a magnetic block one. The rear side of the inner wall of each of the multiple positioning grooves is fixedly connected to a magnetic block two. The rear end of the dropper is provided with a sealing component.

[0009] As a further description of the above technical solution:

[0010] The conversion mechanism includes a reducing connector, the left end of which is fixedly connected to the right end of the plastic tube, and the inner wall of the reducing connector has a threaded groove on the right end.

[0011] As a further description of the above technical solution:

[0012] The monitoring mechanism includes a miniature pressure sensor, the right side of which is fixedly connected to the right end of the inner wall of the fixed tube, and a flow sensor is fixedly connected to the left end of the inner wall of the fixed tube.

[0013] As a further description of the above technical solution:

[0014] The guiding assembly includes two guide posts, with each of the two guide posts fixedly connected to the outer wall of the baffle on an adjacent side. Guide grooves are provided on both the front and rear sides of the inner wall of the plastic tube.

[0015] As a further description of the above technical solution:

[0016] The sealing assembly includes a sealing ring, the front side of which is fixedly connected to the rear end of the dripper, and the front end of the fixing tube is provided with a placement groove.

[0017] As a further description of the above technical solution:

[0018] A metal filter screen is fixedly connected to the right end of the inner wall of the plastic tube. The front and rear ends of the outer wall of the metal filter screen are fixedly connected with elastic fixing buckles. Fixing grooves are opened at the front and rear ends of the inner wall of the plastic tube.

[0019] As a further description of the above technical solution:

[0020] The inner wall of the plastic tube is fixedly connected with multiple reinforcing ribs, and the inner wall of the plastic tube is fixedly connected with multiple guide vanes.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when water flows into the plastic pipe, the water pressure pushes the baffle to compress the spring. When the water pressure changes, the baffle can adjust the area of ​​the water passage to achieve adaptive adjustment of the water flow rate. The guide column and guide groove can provide guidance for the displacement of the baffle. At the same time, the limiting block can limit the displacement range of the baffle to avoid the water flow being blocked. This allows the device to effectively cope with water pressure fluctuations, extend the device's lifespan, ensure uniform drip irrigation, and reduce water waste and maintenance costs.

[0023] 2. In this utility model, when installing the dripper, the movement of the dripper is first guided by the sliding connection between the positioning post and the positioning groove. Then, the dripper is pushed in and attracted by two magnetic blocks. At the same time, pressing the dripper makes the buckle and the groove mechanically lock together, which realizes the precise positioning and stable connection of the dripper. This not only ensures the reliability of the drip irrigation tape, but also facilitates the cleaning and replacement of the dripper, significantly reducing the maintenance difficulty and improving the irrigation efficiency. Attached Figure Description

[0024] Figure 1 This is a three-dimensional view of a drip irrigation tape with uniform flow rate proposed in this utility model;

[0025] Figure 2 This is a side view of a drip irrigation tape with uniform flow rate proposed in this utility model;

[0026] Figure 3 This is a cross-sectional view of the dripper of a drip irrigation tape with uniform flow rate proposed in this utility model;

[0027] Figure 4 This is a split view of the fixing tube of a drip irrigation tape with uniform flow rate proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the sealing ring structure of a drip irrigation tape with uniform flow rate proposed in this utility model;

[0029] Figure 6 This is a cross-sectional view of the plastic tube of a drip irrigation tape with uniform flow rate proposed in this utility model.

[0030] Legend:

[0031] 1. Plastic tube; 2. Dripping tip; 3. Flow rate adjustment mechanism; 301. Annular boss; 302. Flow guide hole; 303. Spring; 304. Multi-stage telescopic rod; 305. Baffle; 306. Limiting block; 307. Rubber pad; 308. Guide assembly; 3081. Guide post; 3082. Guide groove; 4. Water outlet; 5. Fixing pipe; 6. Connecting mechanism; 601. Buckle; 602. Slot; 603. Positioning post 604. Positioning groove; 605. Magnetic block one; 606. Magnetic block two; 607. Sealing assembly; 6071. Sealing ring; 6072. Placement groove; 7. Conversion mechanism; 701. Variable diameter joint; 702. Threaded groove; 8. Monitoring mechanism; 801. Miniature pressure sensor; 802. Flow sensor; 9. Metal filter screen; 10. Elastic retaining buckle; 11. Fixing groove; 12. Reinforcing rib; 13. Guide vane. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 2 , Figure 3 and Figure 6 This utility model provides an embodiment of a uniform flow rate drip irrigation tape, comprising a plastic tube 1 and drippers 2. The inner wall of the plastic tube 1 is provided with a flow rate regulating mechanism 3, which is used to regulate the flow rate of the drippers 2. The outer wall of the plastic tube 1 has a water outlet hole 4 at the front end, which is used for water discharge. A fixing pipe 5 is fixedly connected to the inner wall of the water outlet hole 4, which facilitates the installation of the drippers 2. A connecting mechanism 6 is provided at the front end of the fixing pipe 5, which is used to connect the drippers 2 to the fixing pipe 5. A conversion mechanism 7 is provided at the right end of the plastic tube 1, which is used to connect the drip irrigation tape to the main water pipe. A monitoring mechanism 8 is provided at the rear end of the inner wall of the fixing pipe 5, which is used to monitor the water flow status of each dripper 2.

[0034] The flow rate regulating mechanism 3 includes an annular boss 301, which limits the water flow rate. The outer wall of the annular boss 301 is fixedly connected to the inner wall of the plastic tube 1. A guide hole 302 is provided in the middle of the outer wall of the annular boss 301, allowing water to flow through. Two springs 303 are fixedly connected to the right end of the annular boss 301. The springs 303 automatically adjust the position of the baffle 305 through the dynamic balance between elastic force and water flow pressure. Two multi-stage telescopic rods 304 are fixedly connected to the right end of the annular boss 301. The multi-stage telescopic rods 304 guide the movement direction of the baffle 305. The right end of each telescopic rod 304 is fixedly connected to the same baffle 305. The baffle 305 is used to change the flow area of ​​water. The top of the inner wall of the plastic tube 1 is fixedly connected to a limit block 306. The limit block 306 is used to block the movement of the baffle 305 and prevent the baffle 305 from being completely blocked due to excessive displacement. A rubber pad 307 is fixedly connected to the right side of the limit block 306. The rubber pad 307 can reduce vibration when it contacts the baffle 305. A guide component 308 is provided on the outer wall of the baffle 305. The guide component 308 is used to guide the left and right movement of the baffle 305 in the plastic tube 1.

[0035] The guide assembly 308 includes two guide posts 3081. The adjacent sides of the two guide posts 3081 are fixedly connected to the outer wall of the baffle 305. The inner wall of the plastic tube 1 is provided with guide grooves 3082 on both the front and rear sides. The guide is provided by the sliding connection between the guide posts 3081 and the guide grooves 3082.

[0036] Specifically, when water flows through the flow rate regulating mechanism 3, the water impacts the baffle 305, and the resulting pressure pushes the baffle 305 to the left, compressing the spring 303. Simultaneously, the multi-stage telescopic rod 304 and the guide post 3081 in the guide assembly 308 slide along the guide groove 3082, ensuring that the baffle 305 moves smoothly and does not deviate. As the baffle 305 moves to the right, the area of ​​the water passage formed between the baffle 305 and the annular boss 301 changes, and the flow rate of the water through the guide hole 302 is also adjusted. When the water pressure increases, the spring 303 is further compressed, and the area of ​​the water passage decreases. As the flow rate decreases and the water pressure decreases, the elastic force of the spring 303 pushes the baffle 305 to move to the right and reset, increasing the water passage area and increasing the flow rate. At the same time, the limiting block 306 plays a limiting role. When the baffle 305 moves to the set position, the rubber pad 307 on the right side of the limiting block 306 contacts the baffle 305, preventing the baffle 305 from excessively displacing and completely blocking the guide hole 302. Finally, the regulated water flow is evenly dripped from the dripper 2 connected by the connecting mechanism 6 through the outlet hole 4 and the fixed pipe 5, realizing adaptive adjustment and stable control of the flow rate and increasing the service life of the device.

[0037] Reference Figure 1 , Figure 4 and Figure 5The connecting mechanism 6 includes two buckles 601, the front sides of which are fixedly connected to the rear end of the dropper head 2. The front end of the fixing tube 5 has slots 602 on both the left and right sides. The fixing tube 5 is fixed to the dropper head 2 by the engagement between the buckles 601 and the slots 602. Multiple positioning posts 603 are fixedly connected to the rear end of the dropper head 2, and multiple positioning grooves 604 are provided at the front end of the fixing tube 5. By sliding the positioning posts 603 into the positioning grooves 604, the fixing tube 5 and the dropper head 2 are secured. The connection between them is guided and positioned. Magnetic blocks 605 are fixedly connected to the rear side of multiple positioning posts 603, and magnetic blocks 606 are fixedly connected to the rear side of the inner wall of multiple positioning grooves 604. The magnetic attraction between magnetic blocks 605 and magnetic blocks 606 can increase the fastening force between the fixed tube 5 and the dripper 2. A sealing component 607 is provided at the rear end of the dripper 2. The sealing component 607 is used to seal the connection between the fixed tube 5 and the dripper 2 to prevent water leakage.

[0038] The sealing assembly 607 includes a sealing ring 6071. The front side of the sealing ring 6071 is fixedly connected to the rear end of the dropper 2. The front end of the fixing tube 5 is provided with a placement groove 6072. The sealing performance is increased by sliding the sealing ring 6071 into the placement groove 6072.

[0039] Specifically, when installing the dripper 2 and the fixing tube 5, align the positioning post 603 with the positioning groove 604. Utilize the initial guiding effect of the positioning post 603 and the positioning groove 604 to ensure the accurate connection direction between the dripper 2 and the fixing tube 5. Then, slowly slide the positioning post 603 into the positioning groove 604. At this time, the magnetic block 1 605 and magnetic block 2 606 approach each other, using magnetic attraction to hold them together, keeping the dripper 2 and the fixing tube 5 relatively stable. Simultaneously, press the dripper 2 firmly to make the buckle 601 engage with the slot 602, completing the process. The dripper 2 is mechanically locked in place, and then the sealing ring 6071 at the rear end of the dripper 2 is slid into the placement groove 6072 of the fixing tube 5. This causes the sealing ring 6071 to be deformed by compression, thereby filling the gap and achieving a seal at the connection to prevent water leakage. When disassembling, simply apply force in the opposite direction to release the engagement between the buckle 601 and the slot 602, and then separate the magnetic block 1 605 and the magnetic block 2 606 to separate the dripper 2 from the fixing tube 5. This facilitates quick disassembly, makes it easy to clean or replace the dripper 2, and greatly improves maintenance efficiency.

[0040] Reference Figure 1 , Figure 2 and Figure 3The conversion mechanism 7 includes a reducing connector 701, which serves as a component for connecting the drip irrigation tape to the main water pipe. The left end of the reducing connector 701 is fixedly connected to the right end of the plastic pipe 1. A threaded groove 702 is provided on the right end of the inner wall of the reducing connector 701, which is connected to the corresponding threaded post on the main water pipe through the threaded groove 702. The monitoring mechanism 8 includes a miniature pressure sensor 801, which detects the pressure of the water flow in the corresponding pipe. The right side of the miniature pressure sensor 801 is fixedly connected to the right end of the inner wall of the fixed pipe 5, and a flow sensor 802 is fixedly connected to the left end of the inner wall of the fixed pipe 5. The flow sensor 802 is used to detect the flow rate of the water in the corresponding pipe.

[0041] A metal filter screen 9 is fixedly connected to the right end of the inner wall of the plastic tube 1. The water flow is filtered through the metal filter screen 9. The front and rear ends of the outer wall of the metal filter screen 9 are fixedly connected to elastic fixing buckles 10. The front and rear ends of the inner wall of the plastic tube 1 are provided with fixing grooves 11. By connecting the elastic fixing buckles 10 to the fixing grooves 11, the metal filter screen 9 is fixed to the inner wall of the plastic tube 1. Multiple reinforcing ribs 12 are fixedly connected to the inner wall of the plastic tube 1. The reinforcing ribs 12 reinforce the plastic tube 1. Multiple guide vanes 13 are fixedly connected to the inner wall of the plastic tube 1. The guide vanes 13 can guide the flow of water.

[0042] Specifically, when installing the drip irrigation tape, align the threaded groove 702 of the reducer 701 with the threaded post of the main water pipe and rotate the reducer 701 until a tight connection is achieved. Then, open the main water pipe valve. Next, fix the miniature pressure sensor 801 to the right end of the inner wall of the fixed pipe 5 and the flow sensor 802 to the left end. Use the miniature pressure sensor 801 and the flow sensor 802 to detect the pressure and flow rate of the water in the corresponding pipe. When installing the metal filter screen 9, align the filter screen with the inner wall of the plastic pipe 1, align the elastic fixing buckle 10 with the fixing groove 11, and press the filter screen to make the elastic fixing buckle 10 snap into the fixing groove 11 to complete the fixation. The reinforcing ribs 12 on the inner wall of the plastic pipe 1 can enhance the structural strength of the pipe, and the guide vanes 13 can guide the flow of water, so that the water can flow smoothly.

[0043] Working principle: When water flows into the plastic pipe 1 and passes through the flow rate regulating mechanism 3, the water pressure directly acts on the baffle 305, pushing the baffle 305 to the left. The spring 303 is compressed, generating a reverse elastic force. The multi-stage telescopic rod 304 and the guide assembly 308 ensure smooth left and right movement of the baffle 305. When the water pressure increases, the spring 303 is further compressed, and the leftward movement of the baffle 305 reduces the water passage area between the annular boss 301 and the baffle 305, thus reducing the water flow rate. When the water pressure decreases, the spring 303's elastic force... The force pushes the baffle 305 to the right to reset, increasing the water passage area and increasing the flow rate. At the same time, the limiting block 306 and the rubber pad 307 form a protective structure to prevent the baffle 305 from moving excessively to the left and blocking the water flow. This allows the regulated water flow to pass stably through the outlet hole 4, the fixed pipe 5 and the dripper 2, achieving uniform flow rate control throughout the drip irrigation tape. It can cope with water pressure fluctuations without external power, and the spring 303 has a longer service life, increasing the service life of the device and preventing the pressure compensation accuracy from decreasing due to component damage.

[0044] Furthermore, by aligning the positioning post 603 with the positioning groove 604, the guide between the positioning post 603 and the positioning groove 604 ensures that the dripper 2 is aligned with the fixed tube 5, preventing installation misalignment. Then, the dripper 2 is pushed in along the positioning groove 604, causing the magnetic block 1 605 and the magnetic block 2 606 to generate magnetic attraction, keeping the dripper 2 stable. Next, pressing the dripper 2 causes the buckle 601 to elastically engage with the slot 602, forming a mechanical lock. This prevents the connection between the dripper 2 and the fixed tube 5 from loosening due to water flow impact. At the same time, the sealing ring 6071 at the rear end of the dripper 2 is squeezed into the placement groove 6072, and the gap is filled by deformation, achieving a sealing and leak-proof structure. When disassembling, simply apply reverse force to release the buckle 601 and then separate the magnetic block to quickly disassemble the dripper 2. This ensures the reliability of the connection and facilitates the cleaning and replacement of the dripper 2, significantly improving the maintenance efficiency of the drip irrigation tape.

[0045] 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 embodiments, those skilled in the art can still modify the technical solutions described in the foregoing 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. A uniform flow rate drip irrigation tape comprising a plastic pipe (1) and a dripper (2), characterized in that: The inner wall of the plastic tube (1) is provided with a flow rate regulating mechanism (3), the front end of the outer wall of the plastic tube (1) is provided with a water outlet (4), the inner wall of the water outlet (4) is fixedly connected with a fixing pipe (5), the front end of the fixing pipe (5) is provided with a connecting mechanism (6), the right end of the plastic tube (1) is provided with a conversion mechanism (7), and the rear end of the inner wall of the fixing pipe (5) is provided with a monitoring mechanism (8). The flow rate regulating mechanism (3) includes an annular boss (301), the outer wall of which is fixedly connected to the inner wall of the plastic tube (1). A guide hole (302) is provided in the middle of the outer wall of the annular boss (301). Two springs (303) are fixedly connected to the right end of the annular boss (301). Two multi-stage telescopic rods (304) are fixedly connected to the right end of the annular boss (301). The same baffle (305) is fixedly connected to the right end of both multi-stage telescopic rods (304). A limit block (306) is fixedly connected to the top of the inner wall of the plastic tube (1). A rubber pad (307) is fixedly connected to the right side of the limit block (306). A guide component (308) is provided on the outer wall of the baffle (305).

2. The uniform flow rate drip irrigation tape according to claim 1, characterized in that: The connecting mechanism (6) includes two buckles (601), the front sides of which are fixedly connected to the rear end of the dropper (2). The front end of the fixing tube (5) is provided with slots (602) on both the left and right sides. The rear end of the dropper (2) is fixedly connected with multiple positioning posts (603). The front end of the fixing tube (5) is provided with multiple positioning grooves (604). The rear side of each of the multiple positioning posts (603) is fixedly connected with a magnetic block one (605). The rear side of the inner wall of each of the multiple positioning grooves (604) is fixedly connected with a magnetic block two (606). The rear end of the dropper (2) is provided with a sealing component (607).

3. The drip irrigation tape with uniform flow rate according to claim 1, characterized in that: The conversion mechanism (7) includes a reducing connector (701), the left end of which is fixedly connected to the right end of the plastic tube (1), and the inner wall of the reducing connector (701) has a threaded groove (702) on the right end.

4. The drip irrigation tape with uniform flow rate according to claim 1, characterized in that: The monitoring mechanism (8) includes a miniature pressure sensor (801), the right side of which is fixedly connected to the right end of the inner wall of the fixed tube (5), and a flow sensor (802) is fixedly connected to the left end of the inner wall of the fixed tube (5).

5. The drip irrigation tape with uniform flow rate according to claim 1, characterized in that: The guide assembly (308) includes two guide posts (3081), and the adjacent sides of the two guide posts (3081) are fixedly connected to the outer wall of the baffle (305). The inner wall of the plastic tube (1) is provided with guide grooves (3082) on both the front and rear sides.

6. The drip irrigation tape with uniform flow rate according to claim 2, characterized in that: The sealing assembly (607) includes a sealing ring (6071), the front side of which is fixedly connected to the rear end of the dripper (2), and the front end of the fixing tube (5) is provided with a placement groove (6072).

7. The drip irrigation tape with uniform flow rate according to claim 1, characterized in that: A metal filter screen (9) is fixedly connected to the right end of the inner wall of the plastic tube (1). The front and rear ends of the outer wall of the metal filter screen (9) are fixedly connected with elastic fixing buckles (10). Fixing grooves (11) are opened at the front and rear ends of the inner wall of the plastic tube (1).

8. The drip irrigation tape with uniform flow rate according to claim 1, characterized in that: The inner wall of the plastic tube (1) is fixedly connected with a plurality of reinforcing ribs (12), and the inner wall of the plastic tube (1) is fixedly connected with a plurality of guide vanes (13).

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