A bend pipe structure for drip irrigation tape laying

Abstract

This utility model discloses a curved pipe structure for laying drip irrigation tape, belonging to the field of agricultural machinery technology. The curved pipe structure includes a curved pipe body, which has an inlet end for introducing the drip irrigation tape, an outlet end for discharging the drip irrigation tape, and an arc-shaped guide section connecting the inlet end and the outlet end. The inner channel of the arc-shaped guide section has a cross-section, the shape of which is non-circular, to restrict the circumferential rotation of the drip irrigation tape as it passes through the arc-shaped guide section. This curved pipe structure has significant advantages such as anti-overturning, high wear resistance, simple structure, low manufacturing cost, convenient disassembly and maintenance, and improved laying efficiency, effectively enhancing the overall operational performance of the drip irrigation system.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, and in particular relates to a curved pipe structure for laying drip irrigation tape. Background Technology

[0002] In the process of agricultural modernization, water-saving irrigation technology has become an important support for improving agricultural production efficiency and promoting sustainable agricultural development. As a highly efficient water-saving method, drip irrigation technology can precisely deliver water and nutrients to the crop root zone soil, effectively reducing water waste and significantly improving crop yield and quality, thus gaining widespread adoption globally. With the increasing popularity of large-scale planting models, drip irrigation systems face higher requirements in terms of installation efficiency, installation quality, and adaptability. As the core component of the drip irrigation system, the level of automation and mechanization in the installation of drip irrigation tape directly affects the effectiveness of drip irrigation technology.

[0003] Current drip irrigation installation systems still have several problems and shortcomings in terms of pipe structure. Firstly, most existing pipe installation devices use a circular structure. While this structure ensures a smooth inner wall, avoids damage to the drip tape, and the one-piece bending process is relatively simple, it easily leads to the drip tape flipping during actual operation. When the tractor reverses or turns around, the drip tape easily flips inside the circular pipe, causing the outlet to face downwards, failing to meet the standard installation requirements and severely affecting the drip irrigation effect. Secondly, the pipe installation devices have significant shortcomings in wear resistance. Due to significant differences in soil conditions across regions, such as clay, sandy soil, and soil containing gravel, the buried pipe section is highly susceptible to wear during long-term operation, leading to structural damage. Frequent wear not only shortens the service life of the pipe installation device but also forces users to frequently replace parts, thereby increasing equipment operating costs and reducing overall economy and operational efficiency. Utility Model Content

[0004] In view of the problems that existing pipe laying devices can easily lead to drip irrigation tape flipping, water outlets pointing downwards, insufficient wear resistance, short service life, and high maintenance costs, this utility model provides a bent pipe structure for drip irrigation tape laying.

[0005] This utility model is implemented as follows: a curved pipe structure for laying drip irrigation tape, characterized in that it includes a curved pipe body, the curved pipe body having an inlet end for introducing drip irrigation tape, an outlet end for discharging drip irrigation tape, and an arc-shaped guide section connecting the inlet end and the outlet end; the inner channel of the arc-shaped guide section has a cross-section, the shape of which is non-circular, to restrict the circumferential rotation of the drip irrigation tape when it passes through the arc-shaped guide section.

[0006] In the above technical solution, preferably, the non-circular cross-section is rectangular.

[0007] In the above technical solution, preferably, the bent pipe body is integrally bent from a single rectangular steel pipe.

[0008] In the above technical solution, preferably, the lateral dimension of the outlet end is smaller than the lateral dimension of the inlet end.

[0009] In the above technical solution, preferably, it is characterized by further including a vertical bow head, which is detachably installed at the outlet end of the bent pipe body via a quick-release connection mechanism.

[0010] In the above technical solution, preferably, the rigid bow includes a frame made of multiple steel plates welded together, and the interior of the frame has a channel that communicates with the outlet end of the bent pipe body.

[0011] In the above technical solution, preferably, the quick-release connection mechanism includes a pin hole provided on the sturdy head and an expansion pin passing through the outlet end of the bent pipe body and the pin hole.

[0012] The curved pipe structure for drip irrigation tape laying of this utility model has the following advantages and effects: By employing a non-circular cross-section design in the arc-shaped guide section of the bend, the drip irrigation tape is circumferentially restricted during passage, preventing it from flipping inside the pipe and ensuring a correct laying state with the outlet facing upwards. This effectively solves the problem of drip irrigation tape flipping that easily occurs with existing circular lower pipes. In terms of manufacturing technology, this bend structure is integrally welded from sheet metal, avoiding the reliance on molds in casting processing, reducing manufacturing costs, and also reducing the resistance of the inner wall of the pipe to the drip irrigation tape during travel, improving the smoothness of drip irrigation tape delivery. Simultaneously, the structure is simple and the manufacturing process is easy to implement. The rectangular bend structure achieves the function of preventing drip irrigation tape flipping, while the upright head structure achieves the wear-resistant function of the pipe. The combination of these two features ensures the quality of drip irrigation tape laying while possessing good wear resistance and stability, extending its service life.

[0013] In summary, this bend structure has significant advantages such as anti-overturning, strong wear resistance, simple structure, low manufacturing cost, convenient disassembly and maintenance, and improved laying efficiency, which can effectively improve the overall operation performance of the drip irrigation system. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the diagram; Figure 3 This is a diagram showing the working state of this utility model; Figure 4This is a top view of the present invention. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0016] To overcome the shortcomings of existing technologies, this utility model provides a curved pipe structure for laying drip irrigation tape. To further illustrate the structure of this utility model, a detailed description is provided below in conjunction with the accompanying drawings: Please see Figures 1-4 This embodiment provides a curved pipe structure for laying drip irrigation tape. This structure is a key component of the drip irrigation tape laying device, which typically includes a support, a web plate (for supporting the drip irrigation tape roll) rotatably mounted on the support via bearings, and the curved pipe structure described in this invention.

[0017] The core of the bent pipe structure described in this invention consists of a bent pipe body 1 and a detachable vertical head 2. The bent pipe body 1 is integrally bent from a cold-drawn rectangular seamless steel pipe using a special bending mold. This process ensures the smoothness and continuity of its internal channel, effectively preventing damage to the drip irrigation tape from burrs. The bent pipe body 1 has an inlet end for receiving the drip irrigation tape from the upper flange, an outlet end for guiding the drip irrigation tape into the soil, and an arc-shaped guide section connecting the inlet and outlet ends. The interior of the arc-shaped guide section forms the inner channel, and the cross-sectional shape of this inner channel is designed to be non-circular; in this embodiment, a rectangular cross-section is specifically adopted. The height dimension of this rectangular cross-section is greater than its width dimension. When the drip irrigation tape with a rectangular cross-section passes through this rectangular channel with a matching shape, its wide surface is restricted by the inner wall of the channel, preventing circumferential rotation. This fundamentally prevents the drip irrigation tape from flipping over and causing its outlet to face downwards when the tractor reverses or turns around.

[0018] Furthermore, the lateral width of the outlet end of the curved pipe body 1 is designed to be smaller than the lateral width of its inlet end. This tapered channel design can better guide and tighten the drip irrigation tape, further enhancing its stability when passing through the curved pipe and preventing it from swinging or overturning at the outlet.

[0019] To address wear issues under harsh working conditions such as rocky soil and extend the service life of the entire bend structure, this embodiment also connects the vertical anchor head 2 to the outlet end of the bend body 1. This vertical anchor head is detachably installed on the bend body via a quick-release connection mechanism for rapid replacement after wear. The vertical anchor head 2 includes a frame constructed from multiple 6mm thick wear-resistant steel plates welded together, with the weld height between the plates also being 6mm to ensure structural strength. The interior of this welded frame forms a smooth channel communicating with the outlet end of the bend body 1, ensuring smooth passage of the drip irrigation tape. The quick-release connection mechanism is implemented by: opening two pin holes on the wear-resistant steel plate of the vertical anchor head 2; simultaneously, opening through holes on the outer wall of the bend body 1 at the corresponding pin holes; and reliably connecting the two by simultaneously inserting and passing through the through holes on the bend body and the pin holes on the vertical anchor head. The term "through" here does not refer to penetrating the outlet end channel of the bend body, but rather to welding an ear to the outside of the outlet end pipe wall of the bend body. This connection method eliminates the need for exposed threaded fasteners, avoiding the problem of threads being worn down by soil and becoming impossible to disassemble, making the replacement and maintenance of the bend head extremely simple and quick.

[0020] The vertical tube head 2 is constructed by welding multiple 6mm thick high-strength wear-resistant steel plates together to form a hollow shell structure. Inside, a drip irrigation tape channel is smoothly connected to the outlet end of the curved tube body 1. Specifically, this structure is formed by welding vertical plates, maintaining a lateral spacing of approximately 6mm between the plates to create a reinforced structure. All connecting welds are fully welded with a 6mm weld leg height to ensure overall structural strength. A U-shaped slot is provided on the outer side of the inlet end of the vertical tube head 2. This slot is inserted into a section welded to the outer side of the outlet end of the curved tube body 1. A quick and detachable connection is achieved by using an expansion pin 3 to pass horizontally through the corresponding pin hole on the ear plate and the slot between the connecting ear plates 4. The entire connection point is located outside the drip irrigation tape channel, which does not affect the smooth passage of the drip irrigation tape at all. Its working principle is as follows: when the device travels in rocky soil, the wear-resistant steel plate at the front end of the vertical head 2 directly contacts the soil and rocks. It uses its high thickness and wear-resistant material to withstand wear and protect the internal channel and the bend body 1 from damage. The modular quick-release connection method allows for quick replacement after wear, which greatly improves the durability and maintenance efficiency of the equipment.

[0021] During operation, after the drip tape is released from the spreader, it first enters the inlet end of the curved pipe body 1, and then completes its turning within the arc-shaped guide section with a rectangular cross-section. Because its rectangular cross-section is strictly constrained by the channel shape, it cannot rotate freely, thus maintaining the correct orientation where the outlet always faces upwards. Finally, the drip tape is smoothly laid into the soil from the outlet end via the guide head 2. This invention, through the above structural design, effectively solves the technical problem of drip tape flipping, while significantly improving the wear resistance of the curved pipe end under harsh soil conditions and the convenience of equipment maintenance.

[0022] Its unique structure, formed by welding multiple steel plates, naturally creates longitudinal reinforcing ribs and grooves on the exterior of the shell. This not only effectively breaks up and displaces soil during movement, significantly reducing traction resistance, but also guides the sliding of stones in stony soils, preventing the concentration of massive impact forces on a single plane, thus greatly improving impact resistance. Simultaneously, this modular welding design optimizes the overall weight of the laying head, ensuring structural rigidity while effectively reducing the inertial load at the cantilever end of the equipment, improving the stability and maneuverability of the laying machine in complex terrain. Furthermore, the external reinforcing ribs unexpectedly assist in breaking up and guiding the soil, resulting in a more uniform burial depth of the drip irrigation tape and further improving irrigation uniformity. These synergistic effects transcend the initial goal of simply solving wear resistance issues, achieving a unified effect of multiple technical benefits including drag reduction, impact resistance, depth stability, and lightweighting, demonstrating significant progress.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 curved pipe structure for laying drip irrigation tape, characterized in that, include: The curved pipe body has an inlet end for introducing drip irrigation tape, an outlet end for discharging drip irrigation tape, and an arc-shaped guide section connecting the inlet end and the outlet end. The inner channel of the arc-shaped guide section has a cross-section that is not circular, in order to restrict the circumferential rotation of the drip tape as it passes through the arc-shaped guide section.

2. The curved pipe structure for laying drip irrigation tape according to claim 1, characterized in that, The non-circular cross-section is rectangular.

3. The curved pipe structure for laying drip irrigation tape according to claim 2, characterized in that, The bent pipe body is formed by bending a single rectangular steel pipe.

4. The curved pipe structure for laying drip irrigation tape according to claim 1, characterized in that, The lateral dimension of the outlet end is smaller than the lateral dimension of the inlet end.

5. The curved pipe structure for laying drip irrigation tape according to any one of claims 1 to 4, characterized in that, It also includes a sprue head, which is detachably mounted to the outlet end of the bend body via a quick-release connection mechanism.

6. The curved pipe structure for laying drip irrigation tape according to claim 5, characterized in that, The rigid bow includes a frame made of multiple welded steel plates, and the interior of the frame has a channel that communicates with the outlet end of the bent pipe body.

7. The curved pipe structure for laying drip irrigation tape according to claim 6, characterized in that, The quick-release connection mechanism includes a pin hole on the bow and an expansion pin that passes through the outlet end of the bent pipe body and the pin hole.

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